• 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:
    A web winding device comprises a plurality of guide rollers (11-15), an endless belt (16) forming a loop on the guide rollers, a spool (17) which is rotated by the belt, a calender (18), a spool support shaft (21), and a guide mechanism. The spool support shaft (21) is rotatably supported by a bearing on at least one side. The spool (17) is attached to the spool support shaft (21) in a state in which movement of the spool (17) is prevented in the axial direction by a restriction mechanism. The guide mechanism is coupled to at least one side of the spool support shaft (21). The guiding mechanism prevents the spool support shaft from moving in the axial direction and guides the movement of the spool support shaft in a direction orthogonal to the axial direction.
    公开号:CH712581A2
    申请号:CH00763/17
    申请日:2017-06-13
    公开日:2017-12-29
    发明作者:Shimbara Masami
    申请人:Toyota Jidoshokki Kk；
    IPC主号:
    专利说明:

    Description
    BACKGROUND OF THE INVENTION
    The present invention relates to a sheet winding device.
    [0002] The sheet winding processes comprise a winding process, in which a sheet is wound on a spool while being compressed against two rolls. In this process, each time the web is wound on a turn on the spool, the web is compressed by receiving twice the load of the rolls. When it passes through the rollers, the web is released from compression and absorbs air. Thus, the web repeats the absorption and the discharge of air, which causes the fibers to intertwine between the sheets. Therefore, when used in a combing machine, the regular detachment of the web can be hindered. In other words, licking can occur. In addition, the winding density of the web may become too low to allow the sufficient weight of the web to be wound on the spool. The web refers to a sheet of several ribbons, typically twenty to thirty-six aligned ribbons, having a width of approximately 30 cm.
    In order to compensate for the disadvantages mentioned above, a winding device has been proposed as illustrated in FIGS. 10 and 11. Reference is made to UK Patent Application Publication No. 680,464. This winding device comprises an endless belt 51, which forms a loop on the rollers 52, 53, 54, 55, 56, 57 and 58 A pressure roller 59 adjusts the tension of the belt 51. The roller 52 drives the belt 51. A coil 60 is arranged in a section of the belt 51 which is formed as a loop between the rollers 52 and 53. In this state the spool 60 winds a web L. When the web L is wound on the spool 60, the rollers 52 to 58 are held in constant positions. As the amount of the web L wound on the spool 60 increases, the position of the pressure roller 59 is adjusted so that the belt 51 applies, in a constant manner, the same pressure force to the wound web L on the spool 60.
    [0004] The roller 53 is supported at the distal end of the lever 61. As shown in FIG. 11, when the web L is wound on the spool 60 in a full spool state, the lever 61 is rotated clockwise, as seen in FIG. 11. This moves the roll 53 away from the roll 52 and into a position in which the fully wound web is separated from the loop of the belt 51, and the fully wound web is removed. After that, the lever 61 is pivoted to arrange the roller 53 in the winding position. When the roll 53 returns to the winding position, a spool 60 is fed on the belt 51 from a spool application portion 62 through the space between the rollers 52 and 53. When the roll 52 is driven after the roll 53 has returned to the winding position, the web L is wound on the spool 60, as shown in FIG. 10.
    In the web winding device of the above publication, the spool 60 is simply placed on the belt 51, and the web is rolled while being compressed to the rollers 52,53 by the belt 51. By therefore, when the web L is wound on the spool 60, the position of the spool 60 in the axial direction is not stabilized, and the web L can not be wound on the spool 60 in a predetermined range in the axial direction of the coil 60.
    In order to solve such a problem, it has been proposed a winding device for winding a web on a spool which is rotated in a fixed position by a circulating endless belt. Reference is made to Japanese Patent Laid-open Publication No. 10-511,632. In this winding device, as shown in FIG. 12, a web L is wound on a spool 72 driven by a circulating endless belt 71. The belt 71 is tensioned by a tension adjusting device 73. The belt 71 has a loop 74 formed between two deflection rollers R1 and R2. The coil 72 is arranged in the loop 74 and is rotatable about a fixed axis 75. The coil 72 and the deflection rollers R1 and R2 are sized and arranged relative to each other so that the loop 74 surrounds the coil 72 at an initial minimum contact angle, which is greater than 120 °, at the beginning of the winding process.
    The belt 71 also forms a loop on the deflection rollers R3, R4, R5 different from the deflection rollers R1, R2. The deflection rollers R4 and R5 are arranged in positions in which the belt 71 extends below the web roll 76 in a full reel condition. The deflection roller R5 rotates in a fixed position, and the deflection roller R4 is moved by the tension adjusting device 73 between the position in the winding start state represented by the short two-pointed line and a long dotted line in fig. 12 and the position in the full reel state indicated by the solid line. The voltage adjusting device 73 is connected to a controller 77 to produce a voltage relative to the diameter of the web roll 76.
    As shown in FIG. 13, the coil 72 is fixed between two winding plates 78, 79. The winding plates 78, 79 respectively comprise projections 80, 81. The winding plates 78, 79 are fixed on the coil 72 with the projections 80, 81 mounted in the coil 72.
    The ribbons, which are the raw material for the web, are masses of padded web and are elastic bodies containing a lot of air. Therefore, when winding a web on the spool, it is necessary to maintain the web in one way or another to remove the air while winding the web. At this time, the web is compressed on both sides in the direction of the thickness and expands in the width direction. In addition, after being wound up, the web is compressed again and released so that the air is absorbed and discharged. This gradually expands the web in the width direction. To prevent such expansion, the device of Japanese Patent Laid-open Publication No. 10-511,632 includes the winding plates (flanges) 78,79 provided on the left and right sides of the coil 72.
    However, when the winding plates (flanges) 78 and 79 are provided, there is a space t between the belt 71 and each of the winding plates (flanges) 78 and 79, as shown in FIG. 13. The wadded tablecloth may project into the space t. Such a protrusion can result in ground defects. Groundwater defects refer to licking mainly at the edge.
    In the device described in Japanese Patent Publication Laid-open 10-511 632, the coil 72 is supported to rotate in the same position about the axis 75 from the beginning of winding up 'in full coil state. Therefore, for a considerable period of time from the beginning of the winding, the web L tends to absorb air while moving from the deflection roller R2 to the position in which the web L is wound on. the coil 72. For this reason, in the web L wound on the bobbin 72, a portion of the web roll 76 which is near the coil 72, contains a lot of air. Therefore, when a section of the web L containing a small amount of air is wound on the outside, the web L expands in the width direction and intertwines with the edges of a section of the web. L to be rolled again, and licking tends to occur at the edge.
    SUMMARY OF THE INVENTION
    An object of the present invention is to provide a web winding device capable of, during the winding of a web on a reel, to wind, stably, the web in a predetermined position in the axial direction of the coil and to prevent the occurrence of licking.
    In order to achieve the above objective and according to one aspect of the present invention, there is provided a web winding device which comprises a plurality of guide rollers, an endless belt forming a loop on the rollers. guide, a coil which is rotated by the belt, and a calender. The web winding device is configured to wind a web that has been compressed by the calender and further comprises a spool support shaft and a guide mechanism. The spool support shaft is rotatably supported by a bearing on at least one side. The spool is attached to the spool support shaft in a state in which movement of the spool in an axial direction is prevented by a restriction mechanism. The guiding mechanism is coupled to at least one side of the spool support shaft. The guiding mechanism limits the displacement of the bobbin support shaft in an axial direction and guides the movement of the bobbin support shaft in a direction orthogonal to the axial direction.
    Other aspects and advantages of the present invention will emerge more clearly from the following description, taken in conjunction with the accompanying drawings, illustrating by way of example the principles of the invention.
    BRIEF DESCRIPTION OF THE DRAWINGS
    The invention, together with its objects and advantages, may be better understood by reference to the following description of the presently preferred embodiments together with the accompanying drawings, in which:
    Fig. 1 is a diagram of a winding device according to a first embodiment;
    Fig. 2 is a schematic sectional view taken on the line A-A of FIG. 1;
    Fig. 3A is a front view showing a supported state of a spool support shaft;
    Fig. 3B is a schematic sectional view taken on the line B-B of FIG. 3A;
    Fig. 4 is a schematic sectional view taken on line C-C of FIG. 3A;
    Fig. 5 is a side view illustrating the operation;
    Fig. 6 is a schematic sectional view taken on the line D-D of FIG. 5;
    Fig. 7 is a diagram of a winding device according to a second embodiment;
    Fig. 8 is a schematic sectional view of FIG. 7;
    Fig. 9 is a diagram of a winding device according to a third embodiment;
    Fig. 10 is a schematic sectional view showing a conventional winding device;
    Fig. 11 is a schematic sectional view of the conventional winding device in a state in which the winding has progressed;
    Fig. 12 is a diagram of another conventional winding device; and
    Fig. 13 is a schematic sectional view illustrating the initial stage of formation of a web roll in the device shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment [0016] A first embodiment of the present invention will now be described with reference to FIGS. 1 to 6.
    As shown in FIG. 1, the web winding device comprises guide rollers 11 to 15, an endless belt 16 forming a loop on the guide rollers 11 to 15, a spool 17 rotated by the belt 16, and a calender 18 The web winding device is configured to wind the web 19 compressed by the calender 18.
    The calender 18 comprises four rollers. Of the four rolls of the shell 18, the one with which the web 19 is engaged last is a last roll of the shell 18a. As shown in FIG. 2, the last calender roll 18a is provided to push the ply 19 downwards by means of springs 20. As shown in FIG. 1, the other three rollers 18b are each configured to rotate while being urged by a spring 20 toward the front end roll 18a or 18b. The front side refers to the side in the direction in which the web 19 is fed to the guide roll 11, i.e. the left side, as seen in FIG. 1.
    Among the guide rollers 11 to 15, two guide rollers 11 and 12 are arranged so that, when the web 19 is wound, the path of movement of a coil support shaft 21 coincides with a bisector of the line connecting the central axes of the guide rollers 11 and 12. The guide roller 11 is positioned in the nearest position of the calender 18 among the guide rollers 11 to 15.
    The two guide rollers 13, 14 are arranged below the guide rollers 11, 12. The guide rollers 13 and 14 are arranged in a position to guide the belt 16 so that the belt 16 passes The guide roller 13 is driven by a motor 23 and serves as a driving roller.
    A first end of a lever 24 is supported, in rotation, by a drive shaft of the guide roller 13. The guide roller 12 is rotatably supported by a second end of the lever 24. The guide roller 12 is provided to be moved between a winding position, which is indicated by the solid lines in FIG. 1, and a lifting position, which is indicated by the short two-dot lines and a long dotted line, by a drive means (not shown) such as a pneumatic cylinder. That is, the movable guide roller 12 oscillates between the winding position and the lifting position.
    The guide roller 14 is arranged below the calender 18. The guide roller 14 can be moved by a pneumatic cylinder 25 among a starting position of winding PI which is indicated by the solid line in FIG. . 1 and a full bobbin position P2 and a lift position P3. The full bobbin position P2 and the lift position P3 are indicated by the short two-dot lines and a long dotted line.
    The guide roller 15 is arranged to come into contact with the outer peripheral surface of the belt 16 in a position closer to the full coil 22 than the guide roller 14 arranged in the lifting position P3. As shown in FIG. 2, the width of the belt 16 is determined to be greater than the width of the ply 19.
    As shown in FIGS. 3A, 3B and 4, the web winding device comprises the spool support shaft 21, a guide mechanism 26 (Figs 3A and 3B), and a restriction mechanism 27 (Fig. 4). The spool support shaft 21 fixes the spool 17. The guide mechanism 26 guides the movement of the spool support shaft 21 in a direction orthogonal to the axial direction of the spool support shaft 21. The mechanism restriction 27 prevents the spool 17, which is supported by the spool support shaft 21, from moving in the axial direction of the spool support shaft 21.
    The guiding mechanism 26 comprises guide shafts 28, a slider 29 and bearings 30. In the present embodiment, the number of guide shafts 28 is two. The guide shafts 28 extend in a direction orthogonal to the axial direction of the spool support shaft 21. The slider 29 is supported to be movable along the guide shafts 28. The bearings 30 are provided in the slider 29 to support, in rotation, the spool support shaft 21. In the present embodiment, the spool support shaft 21 is coupled to the guide mechanism 26 only on one side. In other words, the spool support shaft 21 is supported on one side.
    The slider 29 is held in a state in which it presses on the spool 17, which is fixed on the spool support shaft 21, against the guide rollers 11,12 with the belt 16 between them. When the spool 17 winds the ply 19, the slider 29 is moved downward as the winding diameter of the ply 19 wound on the spool 17 increases. That is, at the beginning of the winding, the guiding mechanism 26 holds the spool support shaft 21 in a position, in which the spool 17 is pressed against the two guide rollers 11, 12 by the belt 16. As the winding diameter of the web 19 wound on the spool 17 increases, the guide mechanism 26 guides the displacement of the spool support shaft 21 so that the distances of the spool support shaft 21 from the guide rollers 11,12, increase. The guide shafts 28 and the slider 29 prevent the spool support shaft 21 from moving in the axial direction.
    The restriction mechanism 27 comprises resilient members 31 provided on the outer surface of the spool support shaft 21. As shown in FIGS. 2, 3B and 4, the number of elastic members 31 is six in the present embodiment. At each of the ends in the longitudinal direction of the spool 17, three elastic members 31 are provided at regular intervals in the circumferential direction, as shown in FIG. 3A. Therefore, there are six elastic members 31 in total. Each elastic member 31 is provided to be in contact with the inner circumferential surface of the spool 17. The spool support shaft 21 has a passage 32 for supplying the compressed air in positions corresponding to the elastic members 31. Next, the compressed air is supplied from a pipe 33 connected to the passage 32. When the compressed air is brought to the passage 32, each elastic element 31 is maintained in a state in which it comprises the coil 17. This prevents the displacement of the spool 17 in the axial direction of the spool support shaft 21. In a state in which the compressed air is not fed to the passage 32, the displacement limitation of the spool 17 in the axial direction of the spool 17 the coil support shaft 21 by the elastic members 31 of the restriction mechanism 27 is canceled.
    The operation of the web winding device configured as described above is now described.
    Before the beginning of the winding, an empty coil 17 is fixed on the spool support shaft 21. When the spool 17 is fixed on the spool support shaft 21, the compressed air supply at the passage 32 of the spool support shaft 21 is stopped, so that the spool 17 is allowed to move along the spool support shaft 21. In this state, the spool 17 is fixed at a position predetermined, the coil support shaft 21. After that, the compressed air is fed to the passage 32. The supply of compressed air to the passage 32 causes the elastic elements 31 to compress the coil 17, so that the coil 17 is maintained in a state in which it can not move in the axial direction of the spool support shaft 21.
    Then, the pneumatic cylinder 25 is activated so that the guide roller 14 is arranged in a position indicated by the solid line in FIG. 1. The spool 17 is arranged in the winding start position, in which the spool 17 is pushed against the guide rollers 11, 12 with the belt 16 between them. In this state, motor 23 and calender 18 are activated. The belt 16 is guided by the guide rollers 11 to 15 and moved in the direction of the arrows in FIG. 1. The guide roller 11 rotates counterclockwise, as seen in FIG. 1. The coil 17, on which a portion of the belt 16 forms a loop, rotates clockwise, as seen in FIG. 1, together with the spool support shaft 21.
    The sheet 19 is compressed by the calender 18 to remove the air. The web 19, from which the air has been removed, is moved while being in contact with the surface of the belt 16 which is opposite to the surface in contact with the guide roller 11 when it forms a loop on the roller 11. The web 19 is guided towards the space between the belt 16 and the outer surface of the spool 17 while being in contact with the outer surface of the spool 17. After having been guided towards the space between the belt 16 and the outer surface of the spool 17, the ply 19 is wound on the spool 17 while being pressed against the outer surface of the spool 17 by the belt 16 as the belt 16 moves.
    As the winding diameter of the web 19 wound on the spool 17 increases, the spool support shaft 21 moves on the bisector of the line connecting the central axis of the guide roller. 11 and the central axis of the guide roller 12. The winding operation is carried out in a state in which the ply 19, which is wound on the spool 17, is compressed in a constant manner against the guide rollers 11, 12 in constant positions. While receiving good tension from the guide roller 14, the belt 16 moves from the winding start position to the full spool position while compressing the ply 19 (lap L) wound on the spool 17, thereby responding to a change of the diameter of the ply L wound on the spool 17. The range of the ply surface which is not compressed by the belt 16 is minimized like that in the state of winding start regardless of the winding diameter of the spool. the tablecloth L.
    The conventional winding device described in Japanese Patent Publication Laid-open 10-511 632 carries the winding with the coil 72 remaining in the same position from the beginning of winding up the full coil state, as shown in FIG. 12. Therefore, the web L travels a great distance from the air-laid web surface until the web L that has been wound on the web 72 from the beginning of the winding is pressed against the deflection rollers R1, R2 by the belt 71. Therefore, after the web L has been compressed by the calender to remove air, the web L is moved a great distance in a state capable of absorbing the air. air until the sheet L is wound on the coil 72 and covered with the belt 71. The sheet L, which is thick with the air contained, is wound on the coil 72. Therefore, flanges are required on the sides of the coil 72 to support the expansion of the edges of the layer L.
    In contrast, in the present embodiment, the web 19 is moved while forming a loop on the guide roller 11, enters the space between the belt 16 and the outer surface of the coil 17 and is wound on the spool 17 while being pressed against the outer surface of the spool 17 by the belt 16. Therefore, after the ply 19 has been compressed by the calender 18 and the air has been removed, the ply 19 is moved a small distance significantly, in a state that can absorb air until the web 19 is wound on the spool 17 and covered by the belt 16, relative to the conventional device. The ply 19 is thus wound on the spool 17 with a small thickness.
    The spool 17 rotates in the winding direction together with the spool support shaft 21 while being prevented from moving in the axial direction by the spool support shaft 21 via the restriction mechanism 27 and is compressed against the guide rollers 11,12 by the belt 16 with the web 19 between them. Therefore, even if no flanges are provided, the ply 19 is wound in the correct position of the spool 17 without any problem.
    In the conventional winding device of FIGS. 12 and 13, the force with which the belt 71 compresses the spool 72, must be received by the spool support shaft 72 until the web L wound on the spool 72 is pressed against the deflection rolls R1 and R2 with the belt 71 between them from the beginning of the winding. Therefore, the spool support shaft 72 must have sufficient strength to withstand the pressure force applied to the belt 71.
    In contrast, in the present embodiment, the surface of the coil 17 is pressed against the guide rollers 11,12 with the belt 16 between them or with the belt 16 and the lap 19 wound on the coil 17 between them from the beginning of the winding. Therefore, the spool support shaft 21 does not need to withstand the pressure force acting on the spool 17 from the belt 16.
    As shown in FIG. 5, as the winding progresses to the full coil state, the shell 18 and the motor 23 are stopped, and winding is complete. Then, the lever 24, which supports the guide roller 12, is moved to the lift position indicated by the short two-dot lines and a long dotted line in FIG. 1, and the guide roller 14 is moved to the lift position P3, which is closer to the guide roller 15 than the full coil position P2. In this state, a lift operation is performed. After completion of the lifting operation, the spool 17 is mounted on the spool support shaft 21, the guide rollers 12, 14 are moved to the winding start position. Then, the winding of the sheet 19 is restarted.
    The present embodiment achieves the following advantages.
    (1) The web winding device comprises guide rollers 11 to 15, an endless belt 16 forming a loop on the guide rollers 11 to 15, a spool 17 rotated by the belt 16, and a calender 18. The sheet winding device is configured to wind the compressed web 19. The web winding device comprises the spool support shaft 21 and the guiding mechanism 26. The spool 17 is fixed on the spool support shaft 21 while being unable to move in the axial direction of the spool support shaft 21. coil 17 by the restriction mechanism 27. The spool support shaft 21 is rotatably supported by the bearings 30 at least on one side. The guiding mechanism 26 is coupled to one side of the spool support shaft 21. The guiding mechanism 26 prevents the spool support shaft 21 from moving in the axial direction and guides the movement of the spool shaft. coil support 21 in a direction orthogonal to the axial direction.
    With this configuration, the coil 17 has no flanges and begins winding from a state in which the coil 17 is pressed against the two guide rollers 11, 12 with the belt 16 between them. Therefore, unlike the conventional device, wherein the web is wound on the spool having flanges with the belt therebetween, the compressed web 19 does not penetrate between a belt and the flanges. Thus, no licking occurs at the edges of the web 19.
    After passing the guide roller 11, the range of the web 19 which is not compressed by the belt 16 is minimized independently of the winding diameter of the web. This reduces the amount of air absorbed by the ply 19 wound on the spool 17 and thus eliminates the need to remove the air from the ply 19 wound on the spool 17 by means of pressure force. Therefore, deterioration of the quality (licking) of the web 19 due to expansion in the width direction of the web 19 is prevented. Further, the winding of the web 19 is made with the spool 17 which is prevented from moving in the axial direction by the spool support shaft 21. Thus, unlike the device described in the UK patent application publication 680464, the web 19 is stably wound on the spool 17 in a predetermined range in the axial direction of the spool 17. This allows the ply 19 to be stably wound in a predetermined position in the axial direction of the spool 17. coil 17, while preventing licking.
    Since the expansion of the web 19 due to the absorbed air is low after the web 19 has been wound on the coil 17, the tension of the belt 16 can be determined on a small value. This prolongs the life of the belt 16.
    In addition, the outer surface of the coil 17 is pressed against the guide rollers 11,12 with the belt 16 between them or with the belt 16 and the lap 19 wound on the coil 17 between them from the beginning of the winding. Therefore, the spool support shaft 21 does not need to withstand the pressure force acting on the spool 17 with the belt 16 between them. This allows the resistance of the spool support shaft 21 to be less than that of the winding device disclosed in Japanese Patent Laid-open Publication No. 10-511,632.
    (2) The spool support shaft 21 is coupled to the guiding mechanism 26 only on one side. However, the spool support shaft 21 can be supported on both sides. In the case of support on one side, the attachment and detachment of the spool 17 to and the spool support shaft 21 are facilitated with respect to the case of the support on both sides.
    (3) The guiding mechanism 26 comprises the guide shafts 28 and the bearings 30. The guide shafts 28 extend in a direction orthogonal to the axial direction of the spool support shaft 21. The bearings 30 support the spool support shaft 21 so that it can rotate relative to the slider 29. With this configuration, the spool support shaft 21 can not move in the axial direction and is guided to move in a direction orthogonal to the axial direction by a simple structure.
    (4) The restriction mechanism 27 comprises the elastic members 31 and the passage 32. Each elastic member 31 is provided on the outer circumferential surface of the spool support shaft 21. The passage 32 is provided in the coil support shaft 21 and is capable of supplying the compressed air in the positions corresponding to the elastic elements 31. When the compressed air is brought to the passage 32, each elastic element 31 is maintained in a state in which it compresses the coil 17. This prevents the coil 17 from moving in the axial direction of the spool support shaft 21. Therefore, when no compressed air is supplied to the passage 32, the restriction on the displacement of the spool 17 in the axial direction of the spool support shaft 21 by the elastic members 31 of the restriction mechanism 27 is canceled. This allows the spool 17 to be easily mounted on or removed from the spool support shaft 21.
    Second Embodiment [0048] A second embodiment will now be described with reference to FIGS. 7 and 8.
    In the web winding device of this embodiment, the relationship between the guide roller 11 and the calender 18 is different from that of the first embodiment, and the other configuration is basically the same as that of the first embodiment. of the first embodiment. The same reference numbers or similar reference numbers are assigned to those components that are similar or identical to the corresponding components.
    As shown in FIGS. 7 and 8, the calender 18 of the present embodiment is significantly different from that of the first embodiment in that the rollers 18a, 18b, which constitute the calender 18, are arranged on a substantially vertical plane, and that the last roll 18a is compressed against the guide roller 11 with the belt 16 and the web 19 between them. In addition, the number of rollers 18b constituting the calender 18 which is two, is smaller than that of the first embodiment.
    As shown in FIG. 8, in the calender 18 of the present embodiment, the last roller 18a is pushed by the spring 20 towards the guide roller 11 of the web winding device. The other rollers 18b are each urged by a spring 20 to compress the roll 18a or 18b, which are positioned below, with the web 19 between them. In fig. 7, the springs 20 are omitted.
    In the second embodiment, unlike the first embodiment, the last roller 18a of the calender 18 is configured to be compressed against the guide roller 11 of the web winding device with the belt 16 and the web. 19 between them. Thus, immediately after being disengaged from the last roller 18a of the calender 18, the ply 19 is pressed against the guide roller 11 by the roller 18a with the belt 16 between them, and then wound on the outer surface of the spool 17 or the section of the ply 19 which has been wound on the spool 17.
    Thus, the distance on which the web 19 is moved until the web 19 is wound on the spool 17 after being compressed by the calender 18, is shortened compared to the first embodiment. Therefore, in addition to the advantages (1) to (4) of the first embodiment, the second embodiment obtains the following advantages.
    (5) In the web winding device, the rollers 18a, 18b, which constitute the calender 18, are arranged on a substantially vertical plane. Then, the last roller 18a is pushed towards the guide roller 11 by the spring 20 with the belt 16 and the web 19 between them. The two rollers 18b are each urged by a spring 20 to compress the roll 18a or 18b, which are positioned below, with the web 19 between them. Thus, the distance over which the web 19 is moved until the web 19 is wound on the spool 17 after being compressed by the calender 18 is shortened. Consequently, after having been compressed by the calender 18, the ply 19 is unlikely to absorb the air until it is wound on the spool 17, so that the spreading of the ply 19 in the Width sense is further effectively prevented.
    The present invention is not limited to the embodiments described above, but can be implemented in the following manner, for example.
    As shown in FIG. 9, the web winding device of the first embodiment may comprise a pressing means 40 in a position opposite to the guide roller 11. The pressing means compresses the web 19, which is moved together with the belt 16 forming a loop on the guide roller 11. The pressing means 40 comprises a pressure roller 41 which extends parallel to the guide roller 11 and a pressure spring 43, which pushes a rotation shaft 42 of the pressure roller 41 towards the central axis of the guide roller 11.
    权利要求:
    Claims (4)
    [1]
    Thus, as in the first embodiment, the distance over which the web 19 is moved until the web 19 is wound on the spool 17 via the guide roller 11 and the belt 16 after being compressed. by the grille 18 is long. However, the web 19 is compressed by the pressure roll 41, as it moves along the periphery of the guide roll 11 together with the belt 16, which forms a loop on the guide roll 11. Thus, even if the sheet 19 absorbs the air until it is moved to the position corresponding to the pressure roller 41 after being compressed by the calender 18, the air is withdrawn when the sheet 19 moves while being compressed by the pressure roll 41. Immediately after the air has been removed, the ply 19 is wound on the spool 17 while being pressed against the spool 17 by the belt 16. [0058] Consequently, unlike the first embodiment, even if the web 19 absorbs air until it is moved to the position in which the web 19 is wound on the guide roller 11 after having been compressed by the calender 18 to remove air, air is removed when the web 19 passes through the position in which the web 19 is compressed by the pressure roll 41. Since the web 19 is wound on the spool 17 immediately after the air has been wound, the expansion in the direction of the width of the web 19 is prevented with respect to the first embodiment. The number of rolls constituting the calender 18 is not limited to three or four, but can be five or more. In the configuration in which the last roller 18a of the calender 18 is compressed against the guide roller 11 with the belt 16 between them as in the second embodiment, the axes of rotation of the rollers 18a and 18b, which constitute the grille 18 do not necessarily need to be positioned on a vertical plane. For example, the axes of rotation can be positioned on an oblique flat plane. The direction of movement of the coil 17 between the winding start position and the full coil position is not limited to the vertical direction. For example, the direction of movement may be a horizontal direction or an oblique direction. The restriction mechanism 27 may be modified as long as it is mounted on the spool support shaft 21 to cover the openings of the passageway 32. For example, the restriction mechanism 27 may include annular grooves instead elastic elements 31, which correspond respectively to the openings. In this case, the annular grooves are positioned in positions that correspond to the openings of the passage 32 in the spool support shaft 21. An annular rubber ring is mounted in each of the annular grooves. When no compressed air is supplied to the passage 32, the rubber bushes are held in retracted positions with respect to the outer circumferential surface of the spool support shaft 21. When the compressed air is fed to the passage 32 A portion of the rubber bushes protrude from the annular grooves to support the spool 17. [0063] The spool support shaft 21 may be supported not only on one side, but on both sides. Therefore, the present examples and embodiments should be considered as illustrative and not limiting and the invention should not be limited to the details proposed herein, but may be modified in the scope and equivalence of attached claims. claims
    A web winding device comprising: a plurality of guide rollers (11-15); an endless belt (16) forming a loop on the guide rollers (11-15); a spool (17) which is rotated by the belt (16); and a calender (18), the web winding device being configured to wind a web (19) which has been compressed by the calender (18) and further comprising: a bobbin support shaft (21), which is supported, in rotation, by a bearing (30) on at least one side, in which the spool (17) is fixed on the spool support shaft (21) in a state in which the displacement of the spool (17) in an axial direction is limited by a restriction mechanism (27); and a guiding mechanism (26), which is coupled to at least one side of the spool support shaft (21), wherein the guiding mechanism (26) limits the displacement of the spool support shaft ( 21) in an axial direction and guides the movement of the spool support shaft (21) in a direction orthogonal to the axial direction.
    [2]
    A web winding device according to claim 1, wherein the spool support shaft (21) is coupled to the guide mechanism (26) only on one side.
    [3]
    A web winding device according to claim 1 or 2, wherein: the guide mechanism (26) comprises: a plurality of guide shafts (28), which extend in a direction orthogonal to the axial direction of the spool support shaft (21), and a slider (29) which is supported to be movable along the guide shafts (28), and the bearing (30) which supports, in rotation, the spindle coil support (21) is provided in the slide (29).
    [4]
    A web winding device according to any one of claims 1 to 3, wherein: the restriction mechanism (27) comprises: a plurality of resilient members (31) which are on an outer circumferential surface of the a spool support shaft (21), and a passage (32) which is provided in the spool support shaft (21) and is capable of supplying compressed air in positions corresponding to the elastic elements (31), and when compressed air is fed to the passage (32), the elastic elements (31) are maintained in a state in which the elastic elements (31) compress the coil (17), so that the displacement of the coil (17) in the axial direction of the spool support shaft (21) is prevented.
    类似技术:
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    同族专利:
    公开号 | 公开日
    CN107522021A|2017-12-29|
    DE102017112928A1|2017-12-21|
    JP2017222957A|2017-12-21|
    CN107522021B|2020-03-06|
    JP6547964B2|2019-07-24|
    CH712581B1|2018-01-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    BE500783A|1950-01-23|
    GB8914281D0|1989-06-21|1989-08-09|Rieter Scragg Ltd|Winding devices|
    DE19539365A1|1995-10-23|1997-04-24|Rieter Ag Maschf|Winding device|
    IT1401066B1|2010-07-23|2013-07-12|Marzoli Combing & Flyer S P A Ora Marzoli S P A|LAPTOP DEVICE FOR A STRAINER|
    DE102013108507B4|2013-07-04|2017-11-02|TRüTZSCHLER GMBH & CO. KG|Winding machine for winding wadding bands to cotton wraps|
    DE102014104808A1|2014-04-04|2015-10-08|Trützschler GmbH & Co. Kommanditgesellschaft|Winding machine for winding slivers and method for winding slivers|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2016120940A|JP6547964B2|2016-06-17|2016-06-17|Wrap winding device|
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