• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
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    • 专利摘要:

    公开号:NL2014369A
    申请号:NL2014369
    申请日:2015-02-27
    公开日:2015-10-06
    发明作者:Antonius Petrus Clerx Franciscus；Petrus Maria Clerx Henricus
    申请人:Guide2Track S Àr L；
    IPC主号:
    专利说明:

    Field of the invention
    The present invention relates to a conveyor belt assembly, which assembly comprises measures for preventing the conveyor belt from moving in a direction transverse to the conveying direction of the conveyor belt.
    BACKGROUND OF THE INVENTION
    A guide roller for a conveyor belt assembly with an endless conveyor belt is known from Dutch patent NL9402031. US2013 / 0284567 also describes an assembly for positioning and / or moving, comprising (i) an endless conveyor belt consisting of a conveyor section for carrying an object and a return section; (ii) a first and a second roll disposed within the endless conveyor belt, each roll having a first and a second end; (iii) a frame; and (iv) a fastening system comprising a first fastening part that rotatably fixes the first end of the first roll to the frame, a second fastening part rotatably fixes the second end of the first roll to the frame, a third fastening portion that rotates the first rotatably fixes the end of the second roll to the frame, and a fourth fixation part rotatably fixes the second end of the second roll to the frame; wherein a longitudinal direction of the conveyor belt is defined by the conveying direction of the conveyor belt and extends transversely to the axis of rotation of the first and second roll; wherein at least one of the first and second fastening part comprises a first tensioning system which is adapted to tension the conveyor belt in the longitudinal direction; and wherein the first and second end of the first roller are movable relative to each other in that longitudinal direction through the first tensioning system in response to a difference in length and / or in belt tension between the longitudinal edges of the conveyor belt.
    Summary of the invention
    For creating a conveyor belt assembly in which the belt does not move or only moves to a very limited extent in the lateral direction, the guide roller of the conveyor belt assembly and the second support cooperating with it must be positioned exactly parallel to each other. With an arrangement of these components of the conveyor belt assembly that is not exactly parallel, the conveyor belt will want to move in a direction transverse to the direction of transport. Eventually the tire will touch parts of the structure and be damaged, which in many cases can lead to production stagnation.
    In the majority of conveyor belt assemblies according to the prior art, an attempt is made to prevent this tendency of the conveyor belt to move transversely to the conveying direction by using various tracking methods, including the use of bended rollers. In practice, however, these tracking methods appear to have various disadvantages. Therefore, conveyor belt systems where, when the drive roller and / or the reversing roller are skewed, the conveyor belt runs in axial direction spirally across the surface of the rollers toward an end of a roll, provide problems that need to be solved . The Dutch patent NL9402031 aims to obviate the aforementioned disadvantages. However, the solution according to the aforementioned Dutch patent still has disadvantages.
    It is therefore an object of the invention to provide an alternative conveyor belt assembly, which preferably does not have the aforementioned disadvantages. A possibility of overcoming the aforementioned disadvantages can be achieved by building up the roller surface of the guide roller from a number of segments which are displaceable in axial direction, and by keeping the belt in its track by means of side guides. For the purpose of increasing the rigidity of a segment, and thus for increasing the resistance to deflection, a segment may be provided with at least one rib extending in the longitudinal direction of the guide roller of the inner surface of a segment. In general, in the event of a deviation from an exactly parallel position of two rollers of the conveyor belt assembly, the conveyor belt will run transversely in the direction of the location where the center-to-center distance between the axes of both rollers is smallest. A segment which, when it is located in the arc surrounded by the conveyor belt, is axially shifted, will have to return to its original position as soon as it is no longer in the guide roller part surrounded by the conveyor belt due to rotation of the guide roller. , hereinafter also referred to as "middle position" or "zero position". This return to the middle position can also be referred to as "reset".
    Resetting can be achieved by two methods, namely the use of one or more resilient elements or the use of guide means. The resilient elements may comprise springs, including, for example, leaf springs or coil springs, or elements of, for example, rubber, foam rubber or another elastically deformable material. The use of guide means is preferred, since this method results in lower side guide forces in the conveyor belt. When using internal spring elements, the segments will have to be axially displaced against the spring pressure, for which friction between the segment and the conveyor belt is required. This results in a large force in the plane of the conveyor belt and on the side guide of the conveyor belt. Such a large transverse force can be particularly disadvantageous for the service life of the conveyor belt. For example, the polyester conveyor belts used in snack ovens often have a thickness of only 0.1 mm to promote good heat transfer to the snacks. Large shear forces are disastrous for such a conveyor belt. A similar problem occurs with plastic film and paper webs in newspaper print shops. Where in this description and in the claims the term conveyor belt is used, it can therefore also refer to a belt formed by the material to be transported itself.
    With rapidly rotating rollers, the mass inertia of the segments has an adverse effect. As soon as a shifted segment is no longer in the arc covered by the conveyor belt, the resilient element must reset the segment to the center position before the segment is again in the arc surrounded. This requires a greater resilience of the resilient elements, which in turn is unfavorable for axially shifting the segment when it is in the enclosed arc. To overcome that force, greater frictional force is required between the segment and the conveyor belt. The reaction force thereof acts via the conveyor belt (in the plane of the belt) on the belt side guide, which is particularly disadvantageous. The arched arc can be defined as that part (or circle sector) that is covered by the conveyor belt. This will often be around 180 °.
    A second adverse effect of a greater resilience of the resilient elements is that, due to the mass inertia, the segment passes through the center position, after which the segment eccentrically in the 'nip' (the contact line (mainly parallel to the roller axis) between the tire and roller, where the tire runs on or off the roll) ends up instead of centric. Depending on the ratio between the mass inertia of a segment and the speed of the guide roller, the segment can spring back oscillating and eccentrically end up in the starting position in the nip, after which the axial shift is further increased. This results in a high load on the spring elements and the conveyor belt. A third disadvantage concerns fatigue of the springs, as a result of which breakage can occur and, as a result, loss of production. The use of resilient elements of foam rubber offers no solution since the foam rubber ages relatively quickly and consequently loses its resilience. Resilient elements must therefore be replaced regularly, which also means a loss of production.
    The present invention provides a solution to the above-described drawbacks of the known guide roller. In addition, the invention encompasses other features which eliminate disadvantages of prior art conveyor assemblies. The invention therefore comprises, in a first aspect, a conveyor belt assembly comprising a guide roller, with a guide roller, the roller surface of which is made up of a number of axially displaceable segments arranged rotatably around the circumference and secured against rotation about the guide roller. characterized in that the conveyor belt assembly comprises a reset member (in particular configured to reset a segment), and in particular that the guide roller comprises a number of axes, each segment of the guide roller being connected to one or more axes ("segment axis") or "ball-bush axis"), and wherein the guide roller for engaging the shafts comprises ball bushes. In this way the segments and the ball bushes are functionally connected. Furthermore, a surprisingly smooth resetting of the segments is obtained in this way. The term "connected" can, for example, refer to elements that are directly connected to each other, but also to elements that are connected to each other via one or more other elements. The term "connected" means in particular "functionally linked". In one embodiment, the segments cannot move independently of the shafts and the segments have a small - one-dimensional freedom of movement in the ball bushes via the shafts. In another embodiment, segments cannot move independently of the ball bushes and the segments and the ball bushes have a - slight - one-dimensional freedom with respect to the shafts. Both of the above-described embodiments enable translation of a segment relative to the guide rails. In a further embodiment, a conveyor belt assembly is provided wherein the reset member comprises a kinked or curved strip (which may also comprise a block with a kinked or bent surface), in particular characterized in that the reset member is located outside the guide roller. In this way, when it is outside of the arc, the segment can be reset. In yet a further embodiment, a conveyor belt assembly is provided, characterized in that the segments comprise at least a first length w and a second length w1 in the axial direction, the first length being greater than the second length, characterized in that the reset member outside the guide roller. A segment with a beveled end is an example of this in particular. In yet a further embodiment, a conveyor belt assembly is provided, characterized in that the conveyor belt assembly comprises a guide roller with, in particular, three segments, in particular three segments, each substantially a third of the circumference and the surface of the guide roller and, more particularly, three beveled segments, and wherein the reset member is in particular outside the guide roller. In yet another embodiment, the segments comprise in particular a beveled end and a beveled beginning. The terms "start" and "end" can also be indicated with upstream side or downstream side (or vice versa). In another embodiment, a conveyor belt assembly is provided in which the conveyor belt assembly is mounted on a side bearing which is rotatable about an axis substantially perpendicular to the plane of the conveyor belt, in particular wherein the bearing of the rollers comprises a ball bearing, as belt side guides. In another embodiment, a conveyor belt assembly is provided wherein the conveyor belt assembly comprises resilient strips arranged substantially perpendicular to the plane of the conveyor belt as belt side guides. In yet another embodiment, a conveyor belt assembly is provided wherein the conveyor belt assembly comprises non-rotating pins arranged substantially perpendicular to the plane of the conveyor belt as belt side guides. In a specific embodiment, a conveyor belt assembly is provided wherein the belt side guides further comprise resilient elements. In a further embodiment, a conveyor belt assembly is provided with belt side guides, the belt side guides being located on either side of a curved portion, in particular at the area of the bent arc of the guide roller, of the conveyor belt. In yet a further embodiment, a conveyor belt assembly is provided, characterized in that each segment of the guide roller comprises one or more guide blocks provided non-movably on the concave side of the segment with one or more longitudinal bores, in particular two mutually parallel longitudinal bores wherein the segment is received axially slidably in the guide roller by means of one or more, in particular two, shafts arranged in the longitudinal bores of the one or more guide blocks. In a further embodiment, a conveyor belt assembly is provided, characterized in that the conveyor belt assembly comprises a guide roller centrally engaging tensioning means, in particular comprising a bracket and a lever device, and in particular characterized in that the tensioning means comprises a tension spring or an unster. In a further embodiment, a conveyor belt assembly is provided, characterized in that the guide roller comprises ball bushes for engaging the hardened shafts. Examples of ball bushes are, for example, "linear ball bearings", etc., such as, for example, available from SKF. In yet a further embodiment, a conveyor belt assembly is provided, comprising a reversing roller, with a guide roller, the roller surface of which is made up of a number of segments arranged in axial direction, distributed over the circumference thereof, characterized in that the conveyor belt assembly comprises a reset member for resetting a segment (of the reversing roller). The guide roller can in particular be configured as a drive roller. Embodiments, as described herein, with respect to the guide roller generally also apply to the reversing roller (or, for example, a tensioning roller or supporting roller). In a specific embodiment, a conveyor belt assembly is provided, wherein one or more segments of the guide roller comprise (aluminum) extruded segments. In yet another embodiment, a conveyor belt assembly is provided, wherein one or more segments of the guide roller on the side of the segments facing towards guide rails, over at least a part of the width of the segments an axis-oriented element (also referred to herein as a back element) referred to as), wherein the reset member and element are configured to reset the segment as the (back) member rotates along the reset member. In a further embodiment, a conveyor belt assembly is provided in which the reset member and the segments are configured so that in a first state the reset member and the segment are not in contact with each other, and in a second state the reset member and the segment are in contact with each other are in contact, in particular wherein the reset member is only in contact with the back element, and wherein one is changed from one state to the other by means of rotation of the guide roller over the guide slides. During rotation, a segment that has been shifted is then reset by a tap against the element (back element). In another embodiment, which can in particular be combined with the preceding embodiment, the conveyor belt assembly is provided, wherein in the second state the reset member, or the back element, or both the reset member and also the back element, and in particular at least the reset member, have a contact surface which has an angle greater than (or equal to) 0 ° and less than 180 ° degrees with respect to a rotation surface. In a further embodiment, the conveyor belt assembly is also configured that in the second state the reset member, or the element, or both the reset member and also the back element, have a contact surface which (also) has an angle greater than 0 with respect to a plane through the guide slides. ° and less than 180 ° degrees. In yet a further embodiment, a conveyor belt assembly is provided, the reset member being located at least partially within the guide roller.
    In a further aspect the invention also comprises a method for using a conveyor belt assembly as described herein wherein the conveyor belt is driven and wherein axial shifting of segments takes place, wherein in particular the segments are narrower than the conveyor belt used.
    DETAILED DESCRIPTION OF THE INVENTION
    The invention will now be discussed with reference to a few figures. In the drawing: Fig. 1 shows a schematic top view of an exemplary embodiment of a part of a conveyor belt assembly according to the invention; Fig. 2 is a schematic side view of the exemplary embodiment shown in Fig. 1 of a part of a conveyor belt assembly according to the invention; Fig. 3a shows a schematic top view of an exemplary embodiment of a part of a conveyor belt assembly comprising a guide roller with rectangular segments and reset members; Fig. 3b shows a schematic top view of an exemplary embodiment of a part of a conveyor belt assembly comprising a guide roller with beveled segments and reset members; Fig. 3c is a schematic top view of the assembly shown in Fig. 3b with the guide roller slightly rotated relative to the position shown in Fig. 3b; Fig. 4 is a schematic exemplary embodiment of a segmented drive roller according to the invention; Fig. 5 is a schematic exemplary embodiment of a portion of a segmented deflection roller according to the invention; 6a and 6b schematically represent an embodiment of the guide roller according to the invention; Fig. 7 is a schematic overview of a part of the conveyor belt assembly according to the invention; Fig. 8 schematically shows some elements of the invention; Fig. 9 shows a schematic embodiment of an assembly provided with a tensioning means; 10a and 10b schematically represent an embodiment of the guide roller according to the invention. In the figures and in the description, identical or comparable parts have identical or comparable reference numerals. The figures are not necessarily to scale. In various figures, the direction of the tire 4 is indicated by an arrow.
    Fig. 7 schematically shows a part of the conveyor belt assembly according to the invention. The conveyor assembly 1000 includes a frame 110 in which at least a first guide roller 100 according to the invention (particularly configured as a drive roller) and a second support, such as a second guide roller configured as a reversing roller 200 and possibly a support roller (not shown in FIG. 7) are provided over which the conveyor belt 4, which moves in the direction indicated by the arrow, is guided. The reset members 2 (2a, 2b) in combination with the side guides 3 (3a and 3b) prevent deviations from the conveyor belt 4 in a direction transverse to the direction of transport. Both the reset members and the side guides are connected in this embodiment to the bracket 10 which is placed on the frame 110. Although the guide rails 7 of the guide roller 100 are arranged transversely of the conveying direction of the conveyor belt 4 on the frame 110, in practice there always a slight deviation (with respect to perpendicular to the transport direction).
    According to the invention, the roller surface of a guide roller 100 (and of a supporting roller and a reversing roller 200) is composed of a number of segments 1 which can rotate relative to, or together with, the guide rams 7, and moreover can move parallel thereto in the axial direction. . Especially configured in a guide roller 100 as a drive roller, segments will be secured against rotation about the guide rails 7 and thereby rotate with the shaft.
    For a reversing roller and a supporting roller, it is possible to choose to rotate the roller relative to a fixed axis, as well as to rotate the axis and to secure the segments against rotation relative to the roller. With the reversing roller 200 shown in Figure 7, the guide rails 7 are statically and fixedly arranged on the frame 110 via bracket 120.
    As a result of the fact that the center-to-center distance between two rollers of the conveyor belt assembly 1 is not always constant along the length of the roll, and therefore the rollers are not parallel, the belt 4 will be able to run transversely, in the direction from the smallest heart distance. The belt 4 will then eventually strike one of the side guides (3a, 3b); in the case of a guide roller with a fixed rolling surface, the belt 4 will then bend upwards at the location of the contacted side guide and eventually crawl over this side guide, resulting in tire debossing and strong belt wear. However, with a guide roller 100 according to the invention, and, as described above, provided with a number of segments 1 arranged in axial direction that are distributed over the circumference of the guide roller 100, the common outer surfaces of which form the rolling surface, the strip 4 will be inside the side guides 3, wherein the tape moves the segments 1 with which the tape is currently in contact in the opposite direction (away from the side guide 3 which the tape then encounters). This displacement of course stops as soon as a displaced segment 1 is no longer in contact with the belt. With one of the reset members 2, the relevant segment 1 is then returned to its starting position.
    FIG. 1 shows a schematic top view of an exemplary embodiment of a portion of a conveyor belt assembly 1000 according to the invention, in which the guide roller 100 is arranged, distributed independently of each other in axial direction, distributed over the circumference of the guide roller and secured against rotation about the axis of the guide roller 1 includes. In this embodiment, the guide roller is particularly configured as a drive roller, wherein it is desired that rotation of the guide slides leads to rotation of locked segments. Because the conveyor belt 4 cannot axially shift when this system is used, the segments will shift axially. Where in this description and in the claims the term conveyor belt or belt is used, it can also refer to, for example, a web of paper, plastic or textile. It is also noted that the belt can contain any material commonly used for conveyor belts, such as plastic, textile and steel, and can therefore be made of (smooth) and thick (rigid).
    In contrast to the preferred embodiments of the guide roller according to the prior art as described in Dutch patent NL9402031, in the preferred embodiments the guide roller according to the present invention comprises only three of such segments, each of which comprises at least substantially a third part (120 °) of the circumference of the guide roller. In the top view shown, a portion of a first segment 1a and a portion of a second segment 1b are visible.
    Also with reference to Figs. 2, the total outer circumference of the (three) segments is in particular at least 75%, such as at least 80%, more in particular at least 90% of the outer circumference of the guide roller which these (three) segments build up, as in the order from 95-99%. The circumference of the individual segments is indicated by the references Oa, Ob, and Oc. The shortest distance between two segments can therefore be in the order of 10% / n, respectively, such as in the order of (1-5%) / n, where n is the number of segments, which in particular are in the order of 3-5 , such as 3-4, in particular 3, in the case of the guide roller and / or the reversing roller, while in the supporting roller n for example only needs to be 2. Individual segments are indicated by la, lb, .....
    The maximum width of the segments (i.e. the lateral width or the width parallel to the axes of the rollers) is indicated by reference W.
    Furthermore, the conveyor belt assembly comprises a first end face of the conveyor belt guide roller 100, also referred to as guide roller 100, a first segment guide element 2a, hereinafter referred to in the claims and also referred to in the claims also as reset member 2a, for returning a center position to a central position. segment and at a second end face of the guide roller a second reset member 2b. In a preferred embodiment, a reset member 2 comprises a kinked or bent strip. In the further description and in the claims, the designations 'kinked strip' or 'bent strip' will also refer to embodiments of the reset member which are not made of strip but have contours such that they can fulfill the same function as the kinked strip at the resetting an axially shifted segment to the center position. Therefore, the conveyor belt assembly 1000 comprises a guide roller 100, with a guide roller 7, the roller surface of which is made up of a number of segments 1 (1a, 1b, which are arranged distributed over the circumference and which are preferably displaced in axial direction and rotatable about rotation around the guide roller). 1c), characterized in that the conveyor belt assembly comprises a reset member 2a, 2b. The guide roller is in this case particularly configured as a drive roller and can also be advantageously combined in the conveyor belt assembly with a second (or further) guide roller, whereby it can be advantageous to configure the second (and third, etc.) without securing the segments on the guide rails, so that the segments can rotate freely around the guide rails.
    In one embodiment, conveyor belt assembly 1000 (further) comprises a (second) guide roller 100, with a guide roller 7, the rolling surface of which is composed of a number of segments 1 arranged in axial direction and distributed over the circumference thereof, characterized in that the conveyor belt assembly comprises a reset member 2a, 2b.
    Fig. 1 also shows a first belt side guide 3a and a second belt side guide 3b. Incidentally, more than one tape side guide 3a or 3b can be configured on one side or on both sides. For example, two or more such as 3-6 of such tape side guides may also be placed on each side. The belt side guide may in one embodiment comprise steel, in another embodiment aluminum or plastic, for example "Werkstoff S", Nylon, etc. In yet other embodiments, the belt side guide may comprise ceramics, glass or combinations of previously mentioned materials. Embodiments may also include coatings (such as a Chrome or DLC coating) and thin fiber materials such as Dyneema, Aramide, Kevlar. Other materials are also not excluded.
    FIG. 2 shows a schematic side view of the exemplary embodiment of a portion of a conveyor belt assembly 1000 according to the invention shown in top view in FIG. It can be clearly seen that the cylindrical surface of the guide roller 100 comprises three segments 1a, 1b and 1c, each of which comprises at least substantially 120 ° of the circumference of the guide roller. Fig. 2 also shows the first reset member 2a, the first belt side guide 3a and a part of the conveyor belt 4. In order to be able to clearly show the segmentation of the surface of the guide roller, the reset member 2a is shown transparent for the sake of simplicity.
    The reset member 2 can in one embodiment comprise steel, in another embodiment aluminum, and again in another embodiment plastic, such as Nylon or, for example, "Werkstoff S". Other materials are also not excluded. The selected material of both the reset member and the belt side guide is often dependent on the material of the belt 4. In a special embodiment of the conveyor belt assembly, the reset member comprises steel ball bearings and the side belt guide comprises "Operator S".
    If a guide roller 100 is included in a conveyor belt assembly 1000 according to the invention, as a result of the transverse forces acting on a conveyor belt 4, a segment 1 surrounded by the belt will have a deviation in the axial direction of the guide roller 100. When an axially displaced segment 1 however, this segment 1 will no longer be covered by the conveyor belt 4 and will be reset by one of the two reset members 2a, 2b.
    It can be clearly seen in Fig. 2 that the arc of the guide roller surrounded by the conveyor belt 4 comprises at least substantially 180 °. The arched arc in a conveyor belt assembly is usually 180 °. However, the invention provides that the arched arc can deviate 180 °. Since, in particular, each segment only covers approximately 120 °, at least two segments are present in the covered arc at any given moment in the shown example. In the state schematically shown in Fig. 2, segments 1a and 1c are in the arched arc. When the guide roller is rotated counterclockwise from this state, the segment 1b also enters the arched arc. In the case of a slanting position of the guide roller, the segment 1b will shift in the axial direction as soon as it comes into contact with the conveyor belt, i.e. as soon as it enters the so-called nip. As soon as a segment has left the covered arc, this segment must be reset to the original center position. During operation, an axially displaced segment 1 will automatically return to its starting position. This is accomplished by the reset members 2 which can be attached directly to the frame 110 of the conveyor belt assembly 1000, but also, for example, to a bracket which is again connected to the frame 110, see, for example, Fig. 4. In order to be able to reset the shifted segment, the reset member comprises an outwardly bent, bent or bent part in the axial direction away from the center of the guide roller. Upon rotation of a roller with a segment leaving the nip shifted in axial direction, the front of the segment is caught by the outwardly bent or bent portion of a reset member and the segment 1 is further rotated from the guide roller 100 to the original starting position, the middle position, pushed back. The reset members, 2a and 2b, respectively, are positioned such that a segment can only come into contact with a reset member when the segment is completely outside the covered arc. In this embodiment, the kink line of the reset member is therefore at a maximum of 60 ° before the place where the tire touches the segments (the start of the arched or nip). In other embodiments, the reset member can in particular be arranged at a different location, for example at a maximum of 100 °, such as at a maximum of 90 °, such as at a maximum of 80 °. In particular, the location of the reset member is selected such that the element being reset at the time of resetting is subjected to as little as possible, in particular no, friction from, for example, a tire. If the guide roller rotates further, axial shifting of the segment during the first 60 degree rotation of a segment will not be possible and will be prevented because the second half of the segment, which also comprises 60 degrees, still slides past a reset member. As soon as the segment has been rotated 60 degrees further, the second half of the segment will also have passed the reset member, after which the segment can again move axially. The inability to shift axially during rotation over the first 60 degrees results in a large frictional force between the conveyor belt and the relevant segment, which results in a large lateral force on the conveyor belt and the side guide of the conveyor belt. Thin conveyor belts and paper belts will bend up under such conditions and crawl along the side guide of the belt. This leads to damage and breakage. A resulting short service life and the need for early replacement of conveyor belts entail high costs. The present invention includes a solution to this problem.
    This solution will be explained with reference to Figs. 3a, 3b and 3c. FIG. 3a shows a schematic top view of an exemplary embodiment of a portion of a conveyor belt assembly comprising a segmented guide roller and reset members, the segments displaceable in the axial direction being rectangular (seen in a flat plane). The plane of rotation is perpendicular to the guide rims (not shown here for the sake of clarity) and is represented by reference R. When a guide roller with segments with a rectangular shape is used in combination with the kinked strip-shaped reset members, the abrasion and / or wear outlined above occurs. fracture problem. The present invention relates to an improved conveyor belt assembly comprising, inter alia, a conveyor belt guide roller with axially displaceable segments, the segments being chamfered backwards on both sides with respect to the direction of rotation of the guide roller. Such a segment will further be referred to as a bevel segment or a beveled segment. FIG. 3b shows a schematic top view of an exemplary embodiment of such a conveyor belt assembly according to the invention with beveled segments.
    Although the invention provides an almost unlimited number of ways in which a segment can be chamfered, a preferred embodiment of a chamfered segment comprises a chamfer about approximately half, being at least substantially 60 degrees, of the segment. In this preferred embodiment, the chamfer is at least substantially the same at both ends of the segment and the segments are therefore at least substantially symmetrical with respect to an axis perpendicular to the axial direction of the guide roller.
    In yet another preferred embodiment, the non-chamfered length (in segment circumferential direction) of the segment is, on the contrary, clearly shorter than the chamfered length. This could, for example, be a 30% -70% split. Such a division could be combined with a reset member, the straight part of which is longer than in the preferred embodiment which has already been described above, whereby this division is, respectively, 50% -50%. The exact values of the chamfer lengths depend, among other things, on the dimensions (including the length of the straight section) and positions of the reset members.
    There are several design freedoms in this regard. It should also be added that a chamfer from 2 sides on the segment is also possible. This could be 2 chamfers (per segment side) that optionally come together exactly at a point (point of maximum segment width). But this can also be 2 chamfers on either side (in circumferential direction) of a straight section on the segment. The maximum segment width is then at the location of the straight. All this depends inter alia on the exact dimensions and positions of the reset members. A chamfered segment on two sides can be used for rollers used alternately for two directions of rotation (however, this situation is rather an exception). In that case, in a preferred embodiment, the reset member would be at least substantially on half of the uncovered arc.
    The required / desired degree of chamfer depends on the skew of the drive and / or reversing roller of a conveyor belt assembly. The greater the tilt, the greater the chamfer will have to be. In practice, it also appears that, partly depending on the diameter of the guide roller and assuming that the drive and reversing rollers and any other rollers (such as, for example, supporting rollers) are mounted as well as possible in parallel, shortening a rear axial side of both ends a segment with 1 to 2 mm often already be sufficient to achieve the intended effect. The invention comprises, in addition to the segments with the chamfer shown in Fig. 3b, also embodiments in which the segments instead of the chamfer comprise, for example, a stepped narrowing or a narrowing to be achieved in some other way. The previously introduced chamfered segment or chamfer segment include any form of narrowing applicable for the intended purpose.
    FIG. 3c shows a schematic top view of the assembly shown in FIG. 3b, the guide roller being rotated somewhat further relative to the position shown in FIG. 3b. Thanks to the chamfer, the rear segment can go further to the left without coming into contact with the reset member.
    Therefore, the segments (in this embodiment) have a maximum width W as well as a minimum width (at one end of the chamfer, or an edge of a segment) which is indicated by reference W1. The minimum width W1 will in particular be of the order of 0.05-5% narrower than the maximum width W.
    With respect to the belt side guide, the invention also comprises an improvement over conveyor belt assemblies according to the state of the art as described in patent NL9402031. The belt side guides known from this patent generally comprise smooth pins placed on either side of the conveyor belt at a flat running part of the conveyor belt. A drawback of such tire side guides is the fact that they cause wear to the tire. Also, the energy consumption when using these belt side guides is higher due to the friction between the belt and the pins.
    The present invention comprises in one embodiment a belt side guide which in one embodiment comprises a bearing roller. In a preferred embodiment the bearing roller comprises a ball bearing. However, if this belt side guide is placed in a flat portion of the conveyor belt along the conveyor belt, the conveyor belt will also bend up against the roll of the belt side guide and finally slide over the roll. Therefore, the invention provides for locating the bearing rollers of the belt side guide, also referred to as side guide rolls, along a curved portion of the conveyor belt, for example along the arc of the guide roller spanned by the conveyor belt. FIG. 2 and Figs. 3a, 3b and 3c illustrate this positioning. It is noted here that it can be advantageous to have several pairs of belt side guides, such as 2 to 6, or 2-4, or possibly 2-3 pairs of belt side guides (conductive rollers) 3 (distributed for example, the length of the arched arc). For the sake of clarity, in the embodiments shown in most of the figures (with the exception of the embodiment shown in Fig. 8), only a single pair of tape side guides 3 is schematically shown and the tape side guide is at least substantially halfway along the arched arc. However, the invention provides that the belt side guides 3 can be positioned at any location along a curved portion of the conveyor belt. In order to be able to position the belt side guides at this location, the conveyor belt 4 must be a few millimeters wider than the segments 1 of the guide roller 100. It is noted here that in this embodiment the belt side guides 3a and 3b are further apart. then the reset members 2a and 2b (the shortest distance between the band side guides is greater than between the reset members).
    In one embodiment, the width of the conveyor belt is chosen such that it projects approximately 1.5 mm outside the segments at both ends of the guide roller. The conveyor belt is therefore 3 mm wider in this exemplary embodiment than the segments. An additional advantage of a conveyor belt that is wider than the segments is the prevention of contamination of the segments. Therefore, in one embodiment, the segments are narrower than the intended conveyor belt, such as on the order of 0.05-2% narrower than the intended width of the intended conveyor belt. However, even narrower segments, relative to the conveyor belt width, are also possible, for example 10% narrower. This can, among other things, depend on the belt stiffness.
    A curved thin strip or paper web has a high resistance to bending in a direction perpendicular to the bending direction. When placing the tape side guides in the bend, the advantage that this property of thin tape material or paper offers is also exploited.
    The invention further provides that the bearing rollers are connected to the frame 110 of the conveyor belt assembly 1000, but they can also be arranged in other places, such as on the outside of a bracket or the inside of a bracket 10, as shown in FIG. 4. In embodiments, this attachment is not rigid, but for example via a resilient element, such as a resilient spoke or strip or a block with a coil spring. An example of this is given in the embodiment schematically shown in Fig. 8. In Fig. 8, the belt side guide, in this embodiment in particular the two belt side guides 3, is attached to a resilient element 70, in particular a leaf spring, which can be coupled to the frame via a connecting element 75. Especially with stiffer and thicker conveyor belt materials (such as (thick) steel belts) it can be advantageous if the attachment comprises a resilient element 70. In yet another embodiment the belt side guide comprises only resilient and sliding elements and no rolling elements, such as a resilient element. strip, a stationary block with a specific shape (such as a chamfer, a parabolic profile, a step-by-step profile, etc.), a (resilient or non-resilient) non-rotating pin, etc. The invention comprises embodiments of the guide roller wherein, to prevent dirt from penetrating into the guide roller, the axial slots between the segments of the guide roller are sealed with material which has at least virtually no influence on the mutual displacement of the segments. The seal may, for example, comprise closed flexible foam rubber.
    FIG. 4 shows a schematic embodiment of the segmented guide roller 100, more in particular a drive roller, according to the invention. FIG. 5 shows a schematic exemplary embodiment of a portion of a (second) guide roller according to the invention, in particular applicable as a reversing roller 200. The two types of guide roller are the same with respect to the manner in which the segments are included in the roller and the description below is therefore applies to both types of guide rollers 100, 200.
    As already extensively mentioned, the guide roller according to the invention preferably comprises only three segments. With almost all conveyor belt systems, the bent arc covers 180 degrees. Therefore, three segments are sufficient, which has a favorable effect on the cost price of the guide roller. (Embodiments with two segments can also be used, preferably if the bent arc is much smaller than 180 degrees.) When using a guide roller with segments that each comprise an arc of at least substantially 120 degrees, the resistance of the segments to deflection is much larger than that of the narrower segments of guide rollers with more than three segments. In a preferred embodiment, each segment 1 is constructed from a curved stainless steel dish with a wall thickness of, for example, 2 mm. On the inner side, the concave side, of each segment, two guide blocks 11 are provided, comprising at least one longitudinal bore, which blocks are aligned by means of a continuous (hardened) shaft 5 (also referred to as segment shaft) inserted into the bores. On the guide rails 7, hereinafter also referred to as central axis 7, there are two ball-socket holders 8, which are enclosed here via closing bushes 29, wherein pot holes are provided in each ball-bush holder into which ball bushes 6 are pressed. In embodiments in which each segment comprises only two guide blocks 11 movable along one hardened shaft 5, but axially fixed on the (hardened) shaft 5, the ball bush holders each comprise only three potholes with ball bushes, one for each end of each (hardened) shaft 5 However, in a special embodiment, each guide block 11 comprises two parallel longitudinal bores so that each segment can be movably received along two parallel hardened shafts 5 in the guide roller (to subsequently be fixed to these shafts by means of, for example, a washer 28 arranged next to the guide blocks 11). , without being able to tilt, as is the case with the use of only one hardened shaft per segment. In this preferred embodiment the ball bush holders 8 therefore each comprise six pot holes with ball bushes 6. The invention provides that the ball bushes can be sealed by means of rings or sleeves of rubber or foam rubber to be fitted around the hardened shafts 5 or by means of bellows (not 4 and 5, but for example in Fig. 6a with reference 50), provided that the force required for pressing these elements in is small.
    Therefore, the guide roller 100 comprises in particular at least two axes, such as nx2 axes, where n again relates to the number of segments, wherein the segments can move in parallel with these axes and are connected to these axes. In particular, each segment is connected with two axes. These axes are arranged essentially parallel to the guide rails.
    In one embodiment, the ball-socket holders 8 have a stop on the central axis in the form of locating pins 27. The axial displacement of the segments (via the hardened shafts 5) can be limited by means of Allen bolts 9 in the bottom of the ball-socket pot holes 6. In In the embodiment shown in Fig. 4, the roller is suspended in a bracket 10 which comprises ball bearings with an axle lock. In this exemplary embodiment, the tape side guides 3 and the reset members 2 are attached to the inside of the bracket, for example screwed. In particular, in one embodiment the (hardened) shafts 5 are fixed in the guide blocks 11 such that the (hardened) shafts never shift relative to the guide blocks; for example via the washers 28 shown in Figure 4; but this can also be achieved in other ways. In this embodiment, a segment 1 with associated guide blocks 11 and shafts 5 forms, as it were, a fixed assembly that is slidable in the ball bushes 6, in the axis direction. Therefore, the Allen screws 9 can directly limit the axial displacement of the ball bearing shafts (the "hardened shafts"). Because the segments are not slidable in the axial direction with respect to the axes, these bolts therefore automatically and to the same extent limit the axial movement of the segments.
    The aforementioned bolts 9 also offer the advantage by fully tightening the bolts for transporting the conveyor belt assembly 1000 and thereby fixing the segments 1 laterally, in order to protect the guide roller 100. Furthermore, the Allen bolts 9 can be used to install the guide roller 100 in the conveyor belt system 1000, accurately position the segments 1 laterally in the desired (middle) position of the roller and then tension the belt around the roller. Then it is certain that the segments can make the same stroke in both directions laterally.
    In preferred embodiments, ball bushes 6 have no sealing rings and contain no grease or oil. In this way the internal friction is limited and therefore the side guide force is reduced. Thanks to these measures it is possible to guide very thin steel, plastic and paper tapes or webs, but thick steel and plastic tapes can also be guided. As mentioned above, the ball-socket holders 8 can have a stop 27 on the central shaft 7. This stop in the form of dowel pins 27 is used with the drive roller but not with the reversing roller (as can be seen in figures 4 and 5). It is true that the central shaft 7 rotates, in particular at the drive roller, because this is driven from a motor via, for example, a belt / chain. Thus, in particular, the ball sleeve holder 8 rotates on the drive roller along with the central axis and such a pin 27 can be used for fixation both in the direction of rotation and in the circumferential direction.
    In the second guide roller or reversing roller 200 in Fig. 5, it can be seen that the ball bush holder 8 is mounted on the central shaft 7 by means of ball bearings 30. In this figure, an embodiment of the reversing roller 200 is shown whose central axis does not rotate but is stationary relative to the frame. As a result, less space is required in the frame. The ball-socket holder 8 and the other rotating parts, such as the segments 1, thus all rotate together relative to the central axis 7, via the ball bearings. These ball bearings hold the ball sleeve holders in place in the axial direction. That is why no dowel pins are used here.
    In addition, embodiments of the invention have advantageous applications as a support role. A conveyor belt or a web of material (such as paper) is usually transported on only one side on a support roll. The contact with the conveyor belt is hereby much less than with a drive roller and a reversing roller, respectively a few, up to a maximum of 90 degrees of the revolution of the roller with respect to approximately 180 degrees. It can therefore be advantageous to provide this support roller with only 2 segments (of approximately 180 degrees) instead of 3 (or more) segments as described above, whereby the conveyor belt is then also guided properly without running out of the roller.
    To be clear: a reversing roller and also a supporting roller are driven in particular by the conveyor belt itself. A drive roller drives the conveyor belt. Not in all cases, both a drive roller and a reversing roller according to the invention are necessary in the conveyor belt assembly according to the invention; the guide roller according to the invention can also be advantageously used in a so-called knife belt system, wherein the guide roller has the function of drive roller.
    In a special embodiment of the guide roller 100, see figures 6a and 6b, a segment 1 comprises an (extruded) curved segment (with a width W) and the guide blocks, in particular designed as guide profiles 111, form an integral part of the segment and these are designed so that the hardened shafts 5 can be fixed therein, such as with a pin 113 or a screw. In addition, the (extruded) segment 1 on the concave side of the segment comprises in a direction parallel to the guide slides 7 a groove or raised edge 40 on the side of the segment directed towards the guide slides 7 over a part of the width or the entire width of the segment. In this embodiment, this elevation, also referred to herein as "back", "back", or "back element" 40 can be used to reset the segment 1. The reset member 2a, 2b, which may optionally be arranged partially within the guide roller , in particular with a segment 1 not arranged in the center position, this back element, and thus the entire segment, guides to the zero position. When using the back element, the above-mentioned chamfer is not necessary, but can also still be applied if desired. In one embodiment the spine 40 is chamfered, in another embodiment the reset member 2 is chamfered (or kinked, or is it at an angle), and in yet another embodiment both the back element 40 and the reset member 2 are chamfered.
    With regard to the embodiment of Fig. 6b (the cross-section of Fig. 6a), but this can also be used for other embodiments, it is noted that for each segment 1 there are two guide profiles 111 each with a hole for the (hardened) shafts 5. , one of which does not have a completely round cross-section over at least a part of the length, and one of which has a substantially entirely round cross-section over the entire length. So per (extrusion) segment 1 there is a round hole 116 and a non-round hole 115, a so-called slotted hole. With extrusion, such a slotted hole can be directly extruded. The diameter is deliberately not designed round. This is namely a slotted hole with the long direction in tangential direction of the roller 100. In radial direction, this hole 115 connects very precisely to the ball bearing shaft 5 (just like with the round hole 116, but there it is precisely connecting over 360 ° ( minus the recess required for the extruding process.) The slotted hole is required for tolerance compensation of the assembly.
    Fig. 8 schematically shows a few elements of the invention. This embodiment comprises three segments 1a, 1b, and 1c, each provided with a back 40. In operation, the segments rotate counterclockwise. In this case, the segment lb that just came out will be the first to be reset. As soon as segment 1b is in an eccentric position and the spine 40 rotates along reset member 2, the spine will come into contact with the reset member 2 via a contact surface and the reset member 2 will slide the entire segment 1b back to the middle position. The term "by" can therefore also include physical contact. Preferably, the reset member 2 comprises an angle with respect to the rotation surface or the ridge 40 comprises an angle with respect to the rotation surface, so that at the moment of contact the element lb does not strike hard against the reset member 2, but is instead pushed away in the desired direction . Furthermore, in the figure, two tape side guides 3 are included in the arched arc. Also, both the reset member 2 and the tape side guides 3 are connected via resilient elements 71 and 70 to the conveyor belt assembly via connecting element 75.
    Figures 10a and 10b schematically show a few embodiments of the guide roller 100 according to the invention, wherein the tape side guide 3 and the reset members 2 and the tape 4 are not shown for the overview. In this embodiment (in contrast to the embodiments shown in Figures 4, 5 and 6) the ball bushes 6 are arranged in the ball bush holders 8, the ball bush holder 8 being mounted on the concave side of the segment 1. For a 3-segment roll 100 and for the roll shown in figures 10a and 10b, this means that they comprise 2x3 ball-box holders 8 (3 on the left, 3 on the right). In the example as shown in Figure 10a, the ball-socket holder 8 is connected to segment 1a by means of a weld 83. The ball bushing shaft 5 here has one continuous length, whereby the distance between a first and a second head disk 80 is bridged and a fixation to those head discs is possible. Ball-bush shaft 5 is thereby fixed in end-plates 80 with a end-plate fixing element 82, for example a bolt, but other means can also be used such as locking rings, adjusting rings, pins, glues or welding. The head disk 80 is fixed both in the longitudinal direction of the guide rails 7 and in the roller circumferential direction relative to shaft 7 via an axis fixing element 81. Means such as locking rings, pins, glues and welds can also be used for this fixation. In the embodiment as shown in Fig. 10a, the ball bush shafts 5 therefore do not translate in the direction of the guide rails 7 during roll operation, but the ball bushes always translate together with the ball bush holders 8 and segments 1. This embodiment can be advantageously combined with embodiments comprising extruded segments. 1 as embodiments without extruded segments. In embodiments with extruded segments, in particular, the ball-socket holders together with the segments (i.e. as one component) can be used by means of e.g. extrusion (aluminum extrusion).
    The embodiment shown diagrammatically in Figure 10b comprises, in comparison with the embodiment according to Figure 10a, shorter ball bush shafts 5 which do not create a direct connection between the two (left and right) end discs 80. Thus, with an equal number of ball bushes 6 as in Figure 10a, twice as many ball bearing shafts 5 required. The head disks 80 (together with the ball bushing shafts 5) are held in place by using a rack 84 which is clamped (on the outside) next to the head disk 80 on the central shaft 7. This is just an example measure, but the same can also be done by means of. other fastening methods can be achieved, such as by applying locking rings, pins, welding, gluing. In the example from figure 10b, the ball-socket holders 8 are attached to the concave side of the segments 1 by means of weld 83. In another embodiment, this attachment is realized in a different way, such as by means of bolts. In another embodiment, ball-socket holder 8 and the segment 1 are produced as a whole via (aluminum) extrusion. The ball bush shafts 5 are fixed analogously to FIG. 10a in the head disks 80. The head disks 80 are analogous to those in FIG. 10a fixed by means of an axis fixation element 81 with respect to the central axis 7. The embodiments of the guide roller 100 are shown schematically in FIGS. 10a and 10b can be designed as a drive roller, reversing roller and supporting roller. For the various components mentioned (segments 1, ball-socket holders 8, guide blocks 11, end-plates 80) the following materials are eligible: (stainless) hardened or non-hardened steel, aluminum, plastic. For components such as central shaft 7, ball bushing shaft 5, ball bushes 6, various locking elements such as shaft locking rings, pins and adjusting rings, steel is eligible (both stainless or non-stainless, hardened or uncured).
    A further distinguishing feature of the conveyor belt assembly according to the invention relates to the possibility of tensioning the conveyor belt with the aid of a reversing roller or tensioning roller which, for example with the aid of a lever device, is gripped centrally by a force. An embodiment is schematically shown in Fig. 9. This centrally engaging force can for instance be exerted by a tension spring 63 or an unster, hereinafter also referred to as a tensioning means 63. Via an attachment element 62, coupled to the bracket 10, the guide roller 100 will then move in the direction opposite to the applied force (F), the whole unit tilting more or less via the tilting point 61. In contrast to belt conveyors according to the position of the technique in which the conveyor belt is tensioned left and right independently of each other (often via threaded adjusting screws that are tightened more or less far) in order to thereby adjust the hand travel, in the conveyor belt assembly according to the invention the deflection roller is kept parallel during tensioning and the tension in the conveyor belt will remain the same over the entire width and the roller will also be arranged substantially parallel to other rollers. It is also an advantage here that when a spring unit (or spring by means of length measurement, or weights) is used, the tension force is immediately known, in contrast to the method in which threaded adjusting screws are used. This leads to a better controllability of the tension forces level, as a result of which the tension forces can in fact be set lower so that the service life of various components is favorably influenced. Steel and aluminum, for example, are suitable as material for the various components such as bracket 10 and attachment element 62.
    The exemplary embodiments of (parts of) the conveyor belt assembly according to the invention discussed in this description and shown in the figures are only some of the many possible embodiments within the scope of the invention and should therefore be regarded as non-limitative. The terms "substantially" and "substantial" herein will be understood by those skilled in the art. The terms "substantially" and "substantial" may also include embodiments with "whole", "full", "all", etc. Therefore, in embodiments, the terms "substantially" and "substantial" can also be deleted. Where applicable, the terms "substantially" and "substantial" may also refer to 90% or higher, such as 95% or higher, in particular 99% or more, even more particularly 99.5% or more, including 100%. The term "includes" also includes embodiments in which the term "includes" means "includes" or "exists." In addition, the terms first, second, third and the like in the description and in the claims are used for the distinction between possibly similar elements and not necessarily for describing a sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate conditions and the embodiments of the invention described herein may optionally work in sequences other than described or illustrated herein. The devices in this document are described during use, among other things. As will be apparent to those skilled in the art, the invention is not limited to methods or devices in operation / in use. It should be noted that the embodiments described herein illustrate the invention more than limit and that those skilled in the art can design (many) alternative embodiments without departing from the scope of the appended claims. In the claims, references in parentheses should not be interpreted as limiting the claims. The use of the verb "to include" and the conjugations does not exclude the presence of elements or steps other than those stated in a claim. The article "a" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising various individual elements, and by means of a suitably programmed computer. Different means can be enumerated in the device claim, different of these means can be provided with the same hardware. The mere fact that certain measures are described in mutually different subclaims does not indicate that a combination of these measures cannot be applied with advantage.
    The invention further relates to a device or apparatus which comprises one or more of the characterizing measures described in the description and / or represented in the accompanying drawings. The invention further relates to a method or process which comprises one or more of the characteristic features described in the description and / or shown in the accompanying drawings. It will be clear that the various aspects mentioned in this patent application can be combined and can each qualify separately for a split-off patent application.
    权利要求:
    Claims (28)
    [1]
    A conveyor belt assembly (1000) comprising a guide roller (100), with a guide roller (7), the roller surface of which consists of a number of axially displaceable segments (1) which are arranged to be rotated and distributed around the circumference, ), characterized in that the conveyor belt assembly comprises a reset member (2a, 2b), and that the guide roller (100) comprises a number of shafts (5), each segment (1) of the guide roller being connected to one or more shafts ( 5), and wherein the guide roller (100) for engaging the shafts (5) comprises ball bushes (6).
    [2]
    A conveyor belt assembly according to claim 1, characterized in that the reset member (2a, 2b) comprises a kinked or bent strip, and characterized in that the reset member (2a, 2b) is located outside the guide roller.
    [3]
    The conveyor belt assembly (1000) according to any one of the preceding claims, characterized in that the segments (1) in the axial direction comprise at least a first length (w) and a second length (w1), the first length (w) being larger is then the second length (w1), and characterized in that the reset member (2a, 2b) is outside the guide roller.
    [4]
    Conveyor belt assembly according to one of the preceding claims, characterized in that the conveyor belt assembly comprises a guide roller with three segments (1a, 1b, 1c).
    [5]
    Conveyor belt assembly according to one of the preceding claims, characterized in that the conveyor belt assembly comprises a guide roller with three beveled segments, and characterized in that the reset member (2a, 2b) is located outside the guide roller.
    [6]
    6. Conveyor belt assembly as claimed in any of the foregoing claims 3-4, characterized in that the three segments each comprise substantially a third part of the circumference and the surface of the guide roller, and characterized in that the reset member (2a, 2b ) is outside the guide roller.
    [7]
    Conveyor belt assembly according to one or more of the preceding claims, characterized in that the conveyor belt assembly comprises rollers which are mounted on a side of the conveyor belt and rotatable substantially perpendicular to the plane of the conveyor belt as belt side guides (3a, 3b).
    [8]
    A conveyor belt assembly according to any one of the preceding claims 1-7, characterized in that the conveyor belt assembly comprises spring strips arranged substantially perpendicular to the plane of the conveyor belt as belt side guides (3a, 3b).
    [9]
    Conveyor belt assembly according to one of the preceding claims 1-8, characterized in that the conveyor belt assembly comprises non-rotating pins arranged substantially perpendicular to the plane of the conveyor belt as belt side guides (3a, 3b).
    [10]
    A conveyor belt assembly as claimed in claim 7, characterized in that the bearing of the rollers comprises a ball bearing.
    [11]
    Conveyor belt assembly according to one of the preceding claims 7-10, characterized in that the belt side guides (3a, 3b) furthermore comprise resilient elements.
    [12]
    A conveyor belt assembly according to any one of the preceding claims 7-11, characterized in that the belt side guides (3a, 3b) are located on either side of a curved portion of the conveyor belt.
    [13]
    Conveyor belt assembly according to claim 12, characterized in that the belt side guides (3a, 3b) are located on either side of the conveyor belt at the area of the bent arc of the guide roller.
    [14]
    Conveyor belt assembly according to one or more of the preceding claims, characterized in that each segment of the guide roller comprises one or more guide blocks (11) which are not movably mounted on the concave side of the segment and provided with one or more longitudinal bores, the segment being hardened shafts (5) arranged in the longitudinal bores of the one or more guide blocks is axially displaceable in the guide roller.
    [15]
    Conveyor belt assembly according to claim 14, characterized in that each guide block (11) comprises two mutually parallel longitudinal bores and each segment with two hardened shafts (5) is slidably received in the guide roller.
    [16]
    A conveyor belt assembly according to one or more of the preceding claims, characterized in that the conveyor belt assembly comprises a guide roller, a tensioning roller, or a reversing roller (200) centrally engaging tensioning means.
    [17]
    17. Conveyor belt assembly as claimed in claim 16, characterized in that the tensioning means comprises a bracket and a lever device.
    [18]
    A conveyor belt assembly according to any one of the preceding claims 16-17, characterized in that the tensioning means comprises a tension spring or an unster.
    [19]
    A conveyor belt assembly according to one or more of the preceding claims, characterized in that the guide roller comprises ball bushes (6) for engaging the hardened shafts (5).
    [20]
    The conveyor belt assembly (1000) according to one or more of the preceding claims, further comprising a deflection roller (200), with a guide roller (7), the roller surface of which is made up of a number of segments arranged in axial direction that are distributed over the circumference and (1), characterized in that the conveyor belt assembly comprises a reset member (2a, 2b) for resetting a segment (1) of the deflection roller (200).
    [21]
    The conveyor belt assembly (1000) according to one or more of the preceding claims, wherein one or more segments (1) of the guide roller (100) comprise aluminum extruded segments.
    [22]
    The conveyor belt assembly (1000) according to one or more of the preceding claims, wherein one or more segments (1) of the guide roller (100) on the side of the segments directed towards guide slides (7), over at least a part of the width of the segments (1) comprises an axis (40) facing element, the reset member (2a, 2b) and the element (40) being configured to reset the segment (1) as the element (40) along the reset member (2a, 2b) rotates.
    [23]
    The conveyor belt assembly (1000) according to one or more of the preceding claims, wherein the reset member (2a, 2b) and the segments (1) are configured so that in a first state the reset member (2a, 2b) and the segment (1) do not are in contact with each other, and wherein in a second state the reset member (2a, 2b) and the segment (1) are in contact with each other, and wherein the one-another state is changed by means of rotation of the guide roller (100) over the guide rails (7).
    [24]
    The conveyor belt assembly (1000) according to claims 22 and 23, wherein in the second state the reset member (2a, 2b) is only in contact with the element (40).
    [25]
    The conveyor belt assembly (1000) according to claim 24, wherein in the second state the reset member (2a, 2b), or the element (40), or both the reset member (2a, 2b) and also the element (40), have a contact surface have an angle greater than 0 ° and less than 180 ° degrees with respect to a plane of rotation.
    [26]
    The conveyor belt assembly (1000) according to claim 25, wherein in the second state the reset member (2a, 2b), or the element (40), or both the reset member (2a, 2b) and also the element (40), have a contact surface have an angle greater than 0 ° and less than 180 ° degrees with respect to a plane through the guide rails (7).
    [27]
    The conveyor belt assembly (1000) according to one or more of the preceding claims 7-26, wherein the reset member (2a, 2b) is located at least partially within the guide roller (100).
    [28]
    The conveyor belt assembly (1000) according to one or more of the preceding claims, wherein the conveyor belt comprises a web of paper, plastic or textile.
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    同族专利:
    公开号 | 公开日
    WO2015130171A1|2015-09-03|
    EP3110727B1|2018-05-02|
    NL1040690B1|2015-10-19|
    EP3110727A1|2017-01-04|
    NL2014369B1|2017-01-11|
    NL1040690A|2015-10-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1530195A|1967-07-04|1968-06-21|Mikrovaerk As|Improvements made to guide rollers for conveyor belts|
    NL9402031A|1994-12-02|1996-07-01|Kevin Machinebouw B V|Guide roller and conveyor-belt assembly provided therewith|US10781896B2|2016-07-12|2020-09-22|Wagner Spray Tech Corporation|Belt tightening mechanism for a fluid delivery system|
    NL2017856B1|2016-11-23|2018-05-28|Ccm Beheer Bv|Positioning and conveying device|
    EP3544916B1|2016-11-23|2021-03-17|C.C.M. Beheer B.V.|Positioning and conveying device|
    法律状态:
    2019-10-09| MM| Lapsed because of non-payment of the annual fee|Effective date: 20190301 |
    优先权:
    申请号 | 申请日 | 专利标题
    NL1040690A|NL1040690B1|2014-02-27|2014-02-27|conveyor assembly|
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