• 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
  • 优先权
    • 专利摘要:
    The present invention relates to a jacket (1) for a spreader roll of a machine for producing and / or treating a fibrous web, comprising at least one polymer layer (2, 21) in which a reinforcing structure (3) is embedded, the reinforcing structure (3) comprising a starting material (31) is formed by winding a plurality of helices along the longitudinal axis of the shell (1), wherein the starting material (31) is a line and / or sheet.
    公开号:AT15628U1
    申请号:TGM50196/2016U
    申请日:2016-09-16
    公开日:2018-03-15
    发明作者:
    申请人:Voith Patent Gmbh；
    IPC主号:
    专利说明:

    description
    COVER FOR A BROAD ROLLER AND WIDE ROLLER ROLLER The present invention relates to a jacket for a spreader roll, in particular according to claim 1 and to such a spreader roll, in detail according to claim 15.
    Spreader rolls are used in machines for producing and / or treating a fibrous web. In the intended use of such machines, spreader rollers come e.g. for paper production, on the one hand, at least indirectly in contact with the finished paper web, for example in coating units in which the paper web is coated or in the winding area in which the finished paper web is wound into reels. On the other hand, spreader rolls can also come into contact with clothing of the machine, such as forming fabrics, at least indirectly in the area of the forming section. In any case, such spreading rollers are subject to high friction and therefore abrasion during operation of the machine due to the contact. In the forming section, in addition to the high friction, there is the damp environment due to the fiber suspension.
    A generic spreader roll has a plurality of successively arranged on a roll core and rotatably mounted on this axis cylindrical outer bushes (also called segments). The outer bushings are spaced apart from one another, preferably at the same distance, from one another. They are stored independently of one another on the roller core. The roll core has a roll axis. It corresponds to its longitudinal axis. A single, coherent jacket is drawn over the outer cylindrical jacket surfaces of the individual outer bushings. It is the jacket which, as described above, comes into contact with a paper web when the spreader roller is used as intended. For this purpose, the paper web or the covering wraps around the spreader roller, at least partially, seen in the circumferential direction thereof. Spreader rollers are also known which are banana-shaped, i.e. are formed with a roll core bent perpendicular to the longitudinal axis of the roll. The jacket then essentially follows the outer contour of the roll core, that is, it also runs curved.
    With spreader roll in the sense of the invention, the generic spreader roll mentioned at the outset is meant.
    [0005] A fibrous web in the sense of the invention is to be understood as a scrim of fibers such as wood fibers, plastic fibers, glass fibers, carbon fibers, additives, additives or the like. For example, the fibrous web can be designed as a paper, cardboard or tissue web. It can essentially comprise wood fibers, whereby small amounts of other fibers or also additives can be present. Depending on the application, this is left to the specialist.
    Under a coat in the sense of the invention is a in the circumferential direction about its longitudinal axis in itself - in the manner of a loop - meant band. The jacket is open at its axial ends, as seen in the width direction along the longitudinal axis. The jacket can thus be pulled over one of its axial ends over a roller core (or its segments) of the spreader roller. In such a case, the inner surface (radially innermost outer surface) of the casing then lies at least indirectly on the (radially outermost) outer surface of the segments. At least indirectly, the alternatives include indirect (through other means) and direct (direct).
    The sheath can be made partially or entirely of a polymer. A castable, curable, preferably elastomeric polymer, also called cast elastomer, such as polyurethane, can be used as the polymer.
    By polymer layer is meant a layer which comprises such a castable, curable, preferably elastomeric polymer or is made entirely therefrom. Preferably, / 14
    AT 15 628 U1 2018-03-15 Austrian
    Patent office the polymer layer can be a one-piece, cured layer produced by master molding. In other words, it is monolithically shaped, e.g. by Casting made. The term one-part also includes cases in which the one layer was again made from several layers of the same material when the polymer was cast. However, this only insofar as these layers are essentially no longer visible after curing, but rather a single, preferably uniform, layer results. The same applies accordingly to the finished coat.
    If several polymer layers are provided, these can be arranged one above the other as seen in the radial direction. Exactly one, two or three polymer layers are preferably provided as functional layers. These can be identical in terms of their polymer. If several polymer layers are provided, the radially inner (or innermost) polymer layer — measured in the radial direction around the longitudinal axis of the jacket — can have a thickness of approximately 5 mm. The radially outer (or outermost) polymer layer can have a corresponding thickness of approximately 10 to 20 mm. The term, for example, means a deviation of up to +/- 20% of the stated value.
    If one speaks of thickness according to the invention, then the (spatially smallest) amount of the diameter of the outer contour is always meant in a cross section through the longitudinal axis of the starting material or its fibers. With a circular outer contour - seen in this section - the thickness is equal to the diameter of the outer contour. In the case of an outer contour deviating from the circular shape, also seen in the section, the thickness then corresponds to the diameter of the incircle or circumference.
    The term line structure is a linear structure such as. B. thread or thread understood. By thread is meant a linear, long and thin structure made of one or more fibers. Thread is understood to mean a linear structure which is produced from several twisted threads. The line structure can be made from several fibers twisted around one another in the manner of a rope. The definitions mentioned are used regardless of the material used and the thickness. This means that e.g. a comparatively thick metallic thread is just a thread and not as is commonly referred to as wire.
    As fabrics in the sense of the present invention, sheet-like - preferably textile - such as. B. fabrics, knitted fabrics, knitted fabrics or braids - as will be explained below, however, non-crimp fabrics - which are made of linear structures. The fabric can be a band. Again, the definitions mentioned are used regardless of the material and thickness used.
    The definition, according to which the starting material is endless, means that the thickness of the starting material or its fibers or threads is significantly less than its corresponding overall length. In other words, a quotient from length (L) to thickness (d), that is L / d> 100 preferably> 1,000, or> 10,000 or> 100,000. The starting material can be designed such that its thickness comprises only a fraction of the thickness of the finished polymer layer.
    If in the present invention the width of the starting material is mentioned, if any, the spatial dimension running perpendicular to the direction of the thickness is meant. In the case of flat structures, the thickness is then clearly smaller than the width and the width of the starting material is in turn significantly smaller than its length.
    Starting material is understood to mean that material or semi-finished product by means of which the reinforcing structure of the finished jacket according to the invention is produced. In the case of textile fabrics in particular, the starting material, that is to say raw material, can be a band, in particular an endless band, the width of which is significantly smaller than the width of the jacket. The length is preferably dimensioned such that the (single) reinforcement structure can be produced continuously over the entire width of the jacket in one go - without interruption, preferably in a single winding pass. The starting material 2/14
    AT 15 628 U1 2018-03-15 Austrian patent office al can e.g. are in the form of - preferably in the form of a roll - and are unwound lengthwise from a roll. The textile fabric according to the invention serving as the starting material can itself be single-layer or multi-layer. The width of the starting material can e.g. be between 5 and 30 cm. The starting material or its threads can be made of a polymer. Of course, other materials such as steel or stainless steel are also conceivable. The raw material as raw material can preferably be free of the polymer that forms the at least one finished polymer layer in its state before it is applied to the winding mandrel — that is to say in the rolled-up state. This means that it only comes into contact when the starting material is applied to the winding dome according to the inventive method - or shortly before.
    A finished jacket in the sense of the invention is one whose at least one polymer layer is cured and finally processed, i.e. for the purpose mentioned at the outset e.g. ready for mounting on the spreader roller or for paper production. Analogously, a finished polymer layer means a layer that has hardened.
    [0017] The term reinforcing structure in the sense of the invention means reinforcing the at least one layer containing or consisting of the polymer - ie the polymer layer. The reinforcing structure can be completely embedded in the polymer layer, so that the reinforcing structure does not go beyond the boundary of the polymer layer. In other words, the polymer layer takes on the role of a matrix, which surrounds the reinforcement structure and binds to the matrix as a result of adhesive or cohesive forces.
    The term single reinforcement structure means that the line and / or fabric is the only reinforcement - the at least one polymer layer, all polymer layers and preferably the entire finished jacket itself. This means that exactly one reinforcement structure consisting of line structures, flat structures or a combination of these two is provided and otherwise no further reinforcement structure within the meaning of the invention. In other words, the at least one polymer layer, all polymer layers and preferably the entire jacket are free of further (additional) reinforcement structures, such as line structures and / or flat structures and preferably free of scrims.
    [0019] In this context, a scrim is understood to mean a fabric which consists of one or more layers of parallel threads which are not fixed in a material, frictional or form-fitting manner at their crossing points. Such a clutch is not sustainable itself after laying, i.e. that if it is relocated it loses its shape. In order for it to retain its shape, the threads placed on top of one another must be held, e.g. embedded in a polymer layer.
    A single reinforcement structure can also be present if a multilayer, e.g. Textile fabric is used that is wound to the reinforcing structure according to the invention. In this case, the multiple layers always follow the same spiral. The coil itself is then multilayered, at least when viewed in the winding direction. Such an arrangement can be achieved in that several layers of the starting material are arranged without connection to one another during the production of the jacket or are connected to one another by sewing, gluing, weaving or laminating. Alternatively or additionally, several winding passes can also be provided. A winding pass is understood to mean the step of the uninterrupted application of all coils from the starting material over the entire axial length of the jacket, that is to say from one axial end to the other axial end in a single pull. With several winding passages, this results in a plurality of helixes arranged one above the other in the radial direction, which now run concentrically to one another. However, the definition of the single reinforcement structure does not include fillers or particles such as single or short fibers or impurities which are embedded in the polymer layer and which also bring about reinforcement. These can therefore be contained in the polymer layer without being part of the (single) reinforcement structure in the sense of the invention.
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    AT 15 628 U1 2018-03-15 Austrian patent office [0021] Winding direction is understood to mean the direction of application of the coils, that is to say the winding direction of the starting material for the production of the finished jacket around the longitudinal axis of the winding mandrel or about the longitudinal axis of the finished jacket. The starting material can be unwound lengthwise from a roll during the production of the jacket and applied progressively to the at least one winding mandrel on which the jacket is produced in the longitudinal axis direction of the winding mandrel. The resulting spirals - at least those successive spirals of one and the same winding pass, that is to say directly adjacent spirals - are, from a mathematical point of view, a coherent, uninterrupted curve. This curve preferably winds with a constant slope around a jacket of an imaginary cylinder, which runs concentrically to the finished jacket, i.e. its radially outermost surface or its longitudinal axis over the entire width of the finished jacket, from its one axial end to the other. All the coils of a winding passage or of the entire reinforcing structure can have the same winding direction, that is to say they can only run left or right. With several winding passes, however, the winding direction can vary from winding passage to winding passage. The slope can generally be selected such that the starting material unwound lengthways overlaps in the width direction, that is to say at the width edges thereof. The slope corresponds to the distance between the same latitudes or common latitudes of consecutive, i.e. directly adjacent in terms of winding, e.g. always the left latitudes below each other, at least seen in the winding sense. The slope thus corresponds to the so-called winding feed, i.e. the travel speed of the casting nozzle relative to the winding mandrel along its longitudinal axis during the rotation of the winding mandrel, e.g. measured in mm / revolution. The smaller the slope, the greater the tensile strength of the entire jacket (seen in its circumferential or width direction), but the thicker it also becomes in the radial direction.
    With loosely resting, overlapping width bands means that - at least when winding or in the finished jacket - these apart from the polymer layer in which they are embedded, free of a non-positive, material and / or positive Are interconnected. This also applies to coils which are made in different winding passes and are adjacent to one another. This means that the coils are not connected to one another in any way when they are placed on the winding mandrel in the not yet cured polymer. The fibers of the starting material, that is to say the raw material itself required for producing the jacket, can of course be connected to one another in a force-locking, material-locking and / or form-fitting manner.
    [0023] A fabric or fabric tape is understood to be a textile fabric woven from warp and weft threads. Warp and weft threads cross each other. The fabric can comprise a single or several different, preferably several thread systems with different mechanical properties. But it is also conceivable to use fabrics in which the threads of warp and weft are made of the same material.
    The term knitted fabric is understood to mean those textile fabrics in which a loop formed by a thread is looped into another loop. Knitwear can therefore be a knitted fabric or knitted fabric. Knitted fabrics can be obtained, for example, by knitting or crocheting, each row of stitches being formed from a single thread, stitch by stitch. Knitted fabrics consist of one or more thread systems. A loop engages in the loop of the previous row of stitches. In contrast, at least two thread systems are used in the knitted fabric and the stitches of a stitch row are formed simultaneously. The thread systems can have different mechanical properties such as a different mechanical strength, modulus of elasticity or elongation at break. Alternatively, the threads of the different thread systems can also be made identically, that is, they can be made of the same material. For the purposes of the present invention, however, the term knitted fabric or knitted fabric, in particular warp knitted fabric, is also intended to mean that object comprising a plurality of longitudinal threads running parallel to one another
    AT 15 628 U1 2018-03-15 Austrian patent office, on which a cross thread is laid in a meandering fashion, and at the cross points of the longitudinal thread and cross thread, both are non-positively, materially and / or positively joined together. Such joining can also be carried out by means of a thread itself. In itself, such a product is sustainable, i.e. the given shape does not disintegrate due to moderate external influences.
    The starting material or its fibers can be selected such that they have a modulus of elasticity of 170,000 to 250,000 N / mm 2 , preferably from 180,000 to 210,000 N / mm 2 .
    [0026] Essentially in the longitudinal or in the width direction, it should be understood that deviations of 45 ° from the corresponding direction are also possible on both sides.
    [0027] The present invention also relates to a reinforcement structure for embedding in at least one polymer layer of a jacket. The reinforcement structure is formed from a starting material by a plurality of helices along the longitudinal axis of the jacket. The starting material is a line and / or flat structure according to the invention.
    Furthermore, the present invention also relates to a machine mentioned at the outset or its components, such as a winding device, a forming section or a coating unit, in which the component according to the invention, that is to say the jacket and / or the spreader roll, is / are installed.
    The invention is explained in more detail below with reference to the drawings without restricting the generality. The drawings show:
    Fig. 1, Fig. 2, Fig. 4a shows a highly schematic, partially sectioned view of an spreader roll according to the invention;
    a highly schematic representation of a device for producing the jacket according to the invention;
    a schematic partial and enlarged partial view of an embodiment of a starting material of the reinforcing structure of a jacket according to the invention seen in a cross section through its longitudinal axis;
    a schematic partial and enlarged partial view of an embodiment of a starting material of the reinforcing structure of a jacket according to the invention seen in a cross section through its longitudinal axis;
    4b and 4c a schematic representation of two embodiments of the starting material in a plan view of this.
    In Fig. 1, a spreader roller 7 according to the invention is shown in a highly schematic, partially sectioned view. This representation is not to scale. The spreader roll 7 has a curved roll core 72. The curvature is exaggerated. In the present case, the roller core 72 follows the curvature of its roller axis 71. The latter is concentric with the roller core 72 and, in the selected view, is curved around a perpendicular to the plane of the drawing. The spreader roller 7 can be designed in such a way that it can be bent, that is, when used as intended, it can be moved between a curved and an uncurved position.
    A plurality of cylindrical outer bushings 73 is arranged on the roller core 72. The outer bushes 73 are preferably arranged in a contactless manner at a distance from one another. They can preferably be arranged evenly distributed over the roller core 72. The term evenly distributed refers to the smallest distance between the symmetry points (intersection of the respective axis of symmetry with the roller axis 71) of the outer bushes 73 which are directly adjacent to one another in each case
    AT 15 628 U1 2018-03-15 Austrian
    Patent office bushes 73 in the extension in a common intersection. This point of intersection essentially corresponds to the center point of a full circle, which coincides or is described with the curved roller axis 71.
    The outer bushes 73 are independently rotatable on the roll core 72 about their longitudinal axis, which can coincide in sections (e.g. tangentially) with the roll axis 71. Mounted rotatably means that a rotation of the outer bushes 73 relative to the roller core 72 is possible, particularly when the spreader roller 7 is used as intended. The outer bushes 73 are preferably not designed to be displaceable in the axial direction, that is to say in the direction of the roller axis 71, at least not when the spreader roller 7 is used as intended.
    In the present view, five outer bushings 73 are shown as an example. A different number would of course be conceivable.
    A bearing can be provided at the axial ends of the roller core 72 in order to absorb the forces acting on the spreader roller 7 during operation. This storage can be a fixed or rotating bearing. The spreader roller 7, and in particular the roller core 72, can be driven in rotation, that is to say in relation to a stationary part such as the frame of a machine in which it is installed, or it can rotate rigidly, i.e. based on this stationary part not be circumferential.
    A single, coherent jacket 1 is drawn over the radially outer cylindrical jacket surfaces of the individual outer bushes 73. It extends at least from an axial end of the first outer bushing 73 (or beyond it) to an axial end of the last outer bushing 73 opposite this and beyond. Such a jacket 1 is shown in the following figures.
    Fig. 2 shows a highly schematic, partially sectioned side view of a device for producing a jacket 1. The device here has exactly one cylindrical, continuous winding mandrel 4, on which a starting material 31 is applied by winding. The illustration shows an initial stage of the manufacturing process. In the present case, one end of the starting material 31 is fastened to a polymer layer 2, which is arranged on the outer circumference of the winding mandrel 4. This polymer layer 2 is part of the jacket 1 to be produced. The starting material 31 then serves as a reinforcing structure for the polymer layer 2 to be produced.
    The starting material 31 can be a sheet whose width - the width direction of the starting material 31 in FIG. 1 runs essentially perpendicular to the plane of the drawing - less than the width of the jacket to be manufactured. The starting material 31 can e.g. available as rolls.
    The winding mandrel 4 is rotatably supported about its longitudinal axis 11, which corresponds to the longitudinal axis of the jacket to be produced. Longitudinal axis 11 here runs perpendicular to the plane of the drawing. A casting material, such as pourable, curable polymer, e.g. Polyurethane, placed on the mandrel 4 from above. Such a casting material can e.g. With regard to its pot life and viscosity, it should be chosen in such a way that it completely soaks the wound layers of starting material 31 lying one above the other in the radial direction during casting, without it dripping off the winding mandrel 4 itself.
    The starting material 31 is unrolled from a roll, not shown, and wound into coils on the mandrel 4, more precisely on the polymer layer 2, which is already on the roll core 4. With the winding, the starting material 31 is embedded in the polymer layer 2 to be produced. It serves as a reinforcement structure for the polymer layer 2.
    The width of the pouring nozzle 6 corresponds approximately to the width of the starting material 31. However, it can also be larger. However, the width of the pouring nozzle 6 is less than the width of the jacket 1 to be manufactured.
    Basically, the winding mandrel 4 becomes during the winding of the starting material 31
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    Patent office rotated in the direction of the arrow around its longitudinal axis. Simultaneously with this rotation, the casting nozzle 6 can be guided parallel to the longitudinal axis 11 relative to the winding mandrel 4 via a suitable guide (not shown in FIG. 1). With the pouring nozzle 6, additional polymer can then be applied simultaneously to the starting material 31 which has just been wound onto the polymer layer 2 for winding. Alternatively, the starting material 31 can first be completely wound over the entire width of the jacket and then the polymer can be applied thereon. In the present case, the polymer layer 2 cures into a single, one-piece or coherent polymer layer 2. However, a multilayer sheath, each comprising a radially inner polymer layer and a radially outer polymer layer, could also be provided. The polymer layers can be chosen such that they differ in their mechanical and / or chemical properties.
    Irrespective of this, the casting material can pass through the starting material 31 up to the winding mandrel 4. In this example, the polymer forms exactly an entire polymer layer 2 of the jacket after curing, only a part of which is shown in FIG.
    The winding process basically begins at an axial end of the mandrel 4, which - at the same time - apart from a waste - which can form an axial end of the jacket and ends at the opposite axial end thereof, which then - also apart from a waste - the can form the second axial end of the jacket. Depending on the choice of the length of the mandrel 4, more than one, preferably two sheaths can be produced at the same time.
    If a flat structure is used as the starting material 31, an overlap can be achieved. This takes place depending on the choice of the width of the starting material 31 and the winding feed, that is to say the speed of travel of the casting nozzle 6 along the longitudinal axis of the winding mandrel 4 and the rotational speed of the winding mandrel 4 about its longitudinal axis
    11. As a result of the superimposition of the rotary movement of the mandrel 4 and the axial movement of the casting nozzle 6, the coiled starting material 31 on the mandrel 4 now results in the reinforcing structure 3, which is embedded in the polymer layer 2 by the pouring of the casting material (see in particular FIG. 4a ).
    By means of such a continuous casting process, an endless cylindrical tubular jacket 1, which is closed about its longitudinal axis 11 and whose inner circumference essentially corresponds to the outer circumference of the winding mandrel 4, is thus gradually produced over the width of the winding mandrel 4.
    Fig. 3 shows a not to scale, partially shown cross section through the longitudinal axis 11 of the finished jacket 1, a first embodiment of the invention. The starting material 31 is designed as a line structure, such as a metallic thread or in the manner of a rope. The coiled spirals of the line structure are shown here in simplified form as hatched circles. Coils which are adjacent to one another are equally spaced from one another over the entire length of the jacket 1, namely by the pitch S. The pitch S is defined in more detail below.
    4a, a further embodiment of the invention is shown in a cross-section through the longitudinal axis 11 of the finished jacket 1, which is not to scale and is partially shown. The distance between the longitudinal axis 11 and the polymer layer 2, as in FIG. 3, is also not to scale. The width B of the starting material 31 runs in the plane of the drawing. The illustration suggests that the width B is only a fraction of the total finished jacket 1. The overlap, i.e. the common area on which two successive turns overlap, e.g. touching apparently, can also be described by the slope S of successive turns. The pitch S means the distance between the same width edges 311, 312 or the common width edge of successive coils of the starting material 31 - viewed in the width direction of the starting material. The overlap corresponds - seen in the sectional view shown approximately to the width B of the starting material, reduced by the pitch S.
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    Patent Office In Fig. 4a, a narrow winding has been chosen so that the pitch S is only a fraction of the width B of the starting material 31 used. Accordingly, with only one winding pass, a reinforcement structure 3 of the jacket 1, which is relatively thick in the radial direction and has a high tensile strength, can be achieved. Because here, seen in a cross section perpendicular to the longitudinal axis 11 (not shown, but indicated by the section line A-A), more than two, namely in the present case five consecutive coils of the starting material 31 of the finished reinforcement structure 3 overlap. However, a number that deviates from this is also conceivable.
    It can also be seen in FIG. 4a that, in the cross section shown through the longitudinal axis of the jacket 1, the successive, overlapping coils of the starting material 31 - looking in an extension with respect to their width direction - run at an angle to the longitudinal axis of the finished jacket 1.
    Smaller thicknesses of the reinforcement structure 3 seen in the radial direction can be achieved by increasing the pitch of the helices of the starting material 31 on the winding mandrel 4. At the same time, however, the tensile strength of the reinforcing structure 3 also decreases as the slope increases. 2c, the pitch S is selected such that there is approximately an overlap of successive coils of the starting material 31 of approximately one third. Other values are also conceivable depending on the application.
    The reinforcing structure 3 can in principle be the line structure shown in FIG. 3 and / or the flat structure shown in FIGS. 4a to 4c as the starting material 31. A particularly preferred embodiment, comprising knitwear or a woven fabric, is shown in FIGS. 4b and 4c. Regardless of the embodiment shown, the term and / or link means that both a line and a flat structure can be present in the same polymer layer. As an alternative or in addition, if a multi-layer jacket is provided from a plurality of polymer layers lying one above the other in the radial direction, one of the layers can comprise only a line structure and the other of the layers can exclusively comprise a flat structure. Layers that are free of such a reinforcement structure 3 can also be provided. Combinations of these are conceivable.
    FIG. 4b shows a plan view of a section of the starting material 31 according to the invention. In the illustration shown, the vertical direction corresponds to the longitudinal direction of the starting material 31, while the horizontal direction corresponds to its width direction. The starting material 31 comprises a plurality of longitudinal threads 32 running parallel to one another in the longitudinal direction. On top of this, one, preferably exactly one, single transverse thread 33 is deposited in the manner of a scrim. At the cross points of the longitudinal threads 32 and the transverse thread 33, these two are joined to one another in a force-fitting, material and / or form-fitting manner, which is indicated here by the points.
    4c, a starting material 31 formed as a fabric is shown in a partial top view. In the illustration shown, the horizontal direction corresponds to the width direction of the starting material 31, while the vertical direction corresponds to its length direction. The weft threads 38 run in the width direction, and the warp threads 37 of the fabric run in the longitudinal direction. Warp and weft threads 37, 38 cross over and are connected to one another by thread crossing.
    From a comparison of FIG. 1 with the remaining figures, it can be seen that the longitudinal axis of the finished jacket 1 does not initially correspond to the curved roller axis 71 of the spreader roller 7 shown. However, since the jacket 1 is elastic, it follows the curvature of the roller axis 71 of the spreader roller 7 after being pulled onto the roller core 72.
    Irrespective of the embodiments shown, according to the present invention, by setting different pitches S - that is, by overlapping successive windings - at least when using fabrics or meshes
    AT 15 628 U1 2018-03-15 Austrian patent office right as starting material 31 for the reinforcement structure, different thread spacings can also be realized.
    LIST OF REFERENCE NUMBERS
    1 coat 11 longitudinal axis 2, 21.22 polymer layer 3 reinforcing structure 31 starting material 311.312 wide margins 32 longitudinal thread 33 transverse thread 37 warp 38 weft 4 mandrel 5 management 6 casting nozzle 7 Spreader roll 71 roll axis 72 roll core 73 Outside socket
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    权利要求:
    Claims (15)
    [1]
    Expectations
    1. jacket (1) for an spreader roller of a machine for producing and / or treating a fibrous web, comprising at least one polymer layer (2, 21) in which a reinforcing structure (3) is embedded, characterized in that the reinforcing structure (3) a starting material (31) is formed by winding a plurality of coils along the longitudinal axis of the jacket (1), the starting material (31) being a linear and / or flat structure.
    [2]
    2. Jacket (1) according to claim 1, characterized in that the starting material (31) is endless.
    [3]
    3. Jacket (1) according to claim 1 or 2, characterized in that the starting material (31) is a line structure, such as thread or thread, and preferably the line structure has a thickness of 0.3 to 1.5 mm.
    [4]
    4. Sheath (1) according to one of claims 1 to 3, characterized in that the line structure comprises or is made of a metal - such as steel or stainless steel - and is preferably made of a plurality of twisted fibers in the manner of a rope.
    [5]
    5. jacket (1) according to any one of claims 1 to 4, characterized in that the starting material (31) is a textile fabric - such as a woven fabric or knitted fabric, such as a knitted fabric or knitted fabric, preferably warp knitted fabric - whose width is less than the width of the finished jacket (1) and preferably the width of the starting material (31) is between 50 and 300 mm.
    [6]
    6. jacket (1) according to claim 5, characterized in that the starting material (31) has a thickness of 0.2 to 1.0 mm.
    [7]
    7. jacket (1) according to claim 5 or 6, characterized in that seen in the winding direction overlap the same width edges (311, 312) of successive coils.
    [8]
    8. jacket (1) according to any one of claims 5 to 7, characterized in that the overlapping width edges lie loosely (311,312) on one another.
    [9]
    9. jacket (1) according to any one of claims 1 to 8, characterized in that the starting material (31) has a modulus of elasticity in the range of 1,000 to 300,000 N / mm 2 , preferably 20,000 to 180,000 N / mm 2 , particularly preferably 170,000 to 250,000 N / mm 2 .
    [10]
    10. jacket (1) according to any one of claims 1 to 9, characterized in that the at least one polymer layer (2, 21) is made in one piece by primary molding and preferably the reinforcing structure (3) completely in the at least one polymer layer (2, 21) is embedded.
    [11]
    11. jacket (1) according to any one of claims 1 to 10, characterized in that the at least one polymer layer (2) comprises a polyurethane which is made of a prepolymer and a crosslinker.
    [12]
    12. jacket (1) according to claim 11, characterized in that the polyurethane is set as a cast elastomer and preferably the finished polymer layer (2, 21) has a hardness of 20 to 95 Shore A, preferably 50 to 90 Shore A.
    [13]
    13. Sheath (1) according to one of claims 1 to 12, characterized in that the reinforcing structure (3) is the only reinforcing structure, preferably the only reinforcing structure of the at least one polymer layer (2, 21, 22), all polymer layers (2, 21 , 22) or the entire jacket (1).
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    [14]
    14. Roller for a machine for producing and / or treating a fibrous web, such as spreader roller (7), comprising a roller core (72), with a plurality of outer bushings (73) rotatably arranged on the roller core (7) and one on the outer circumference of the Outer bushes (73) at least indirectly arranged jacket (1), characterized in that the jacket (1) is designed according to one of claims 1 to 13.
    [15]
    15. Roll according to claim 14, characterized in that the roll core (72) is bent or is designed to be bendable with respect to a roll axis (71) concentric to this.
    3 sheets of drawings
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    Fig. 1
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    AT 15 628 U1 2018-03-15 Austrian
    Patent Office
    Fig. 3
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    同族专利:
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    CN106544919B|2020-09-04|
    CN106544919A|2017-03-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0655561A1|1993-11-30|1995-05-31|Sgl Technik Gmbh|Fiber reinforced plastic roll with rhombic-shaped grooved surface|
    DE102011075179A1|2010-05-20|2011-11-24|Metso Paper, Inc.|Method for manufacturing construction of fiber course machine roller, involves winding roller on support plate as core of construction|
    GB1359215A|1971-05-28|1974-07-10|Dunbeath Holdings Pty Ltd|Roller and method of making same|
    SU896134A1|1980-04-11|1982-01-07|Научно-Исследовательский И Проектно-Конструкторский Институт Целлюлозного Машиностроения|Roll for working fibrous materials by pressure|
    DE3903161A1|1989-02-03|1990-08-09|Helmuth Schmoock|BROAD ROLLER|
    DE4220446A1|1992-06-23|1994-01-05|Clouth Gummiwerke Ag|Tubular elastomeric cover for curved rollers - has high strength non-metallic reinforcement with high internal damping and low extensibility|
    DE4438354A1|1994-10-27|1996-05-02|Voith Sulzer Papiermasch Gmbh|Paper web pressure roller mantle|
    DE19860099A1|1998-12-23|2000-07-06|Voith Sulzer Papiertech Patent|Press jacket and manufacturing method|
    DE10156146A1|2001-11-15|2003-05-28|Voith Paper Patent Gmbh|roll shell|
    FI6049U1|2003-07-03|2003-12-18|Metso Paper Inc|Guide roller for a paper machine, cardboard machine or equivalent|
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    EP3094778B1|2014-01-13|2020-05-27|Voith Patent GmbH|Spreader roll|DE102017115591A1|2017-07-12|2019-01-17|Voith Patent Gmbh|Press cover, shoe press and use of such|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN201510600532.3A|CN106544919B|2015-09-18|2015-09-18|A cover body and spreader roller for spreader roller|
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