• 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) on the guide rollers, a spool (17) which is rotated by the belt, and a shell (18). The web winding device is configured to wind a web (19) which has been compressed by the calender (18). The guide rolls comprise a web-fed guide roll, which is fed with the web from the shell (18). The web winding device further comprises a web compression portion, which compresses the web (19) between the web compression portion and the web fed guide roll.
    公开号:CH712582A2
    申请号:CH00764/17
    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 for winding a sheet 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. 10, 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 rotated about a fixed axis 75. The coil 72 and the deflection rollers R1 and R2 are dimensioned and arranged relative to one another 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 roll R5 rotates in a fixed position, and the deflection roll 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. 10 and the position in the full coil 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. 11, 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 to 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 a spool, it is necessary to maintain the web in one way or another to remove the air during the winding of the web. In the device described in the above publication, the web L is crushed by a calender (not shown) to remove the air, and then the web L is fed to the deflection roller R2. However, the web L again captures air in the section from the calender to the deflection roller R2. Therefore, when the web L is wound on the bobbin 72 with the belt 71, the air is drawn off, so that the width of the web L is increased. To limit this, the winding plates (flanges) 78, 79 are provided on the left and right sides of the coil 72 in the above device.
    However, when the winding plates (flanges) 78 and 79 are provided, it takes a space t between the belt 71 and each of the winding plates (flanges) 78 and 79, as shown in FIG. 11. The wadded tablecloth may protrude into space t. Such a protrusion can result in ground defects. Groundwater defects refer to licking mainly at the edge.
    SUMMARY OF THE INVENTION
    An object of the present invention is to provide a web winding device that can wind a web without causing web defects.
    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. The guide rollers comprise a web-fed guide roll, which is fed with the web from the shell. The web winding device further comprises a web compression portion, which compresses the web between the web compression portion and the web fed guide roll.
    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, can 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 illustrating the relationship between a slider and a roll holder;
    Fig. 3B is a sectional view taken on the line B-B of FIG. 3A;
    Fig. 4 is a sectional view taken on the line C-C of FIG. 3A;
    Fig. 5 is a diagram showing the winding device in a state in which a web has been wound into a full spool state;
    Fig. 6 is a diagram of a winding device according to a second embodiment;
    Fig. 7 is a schematic sectional view illustrating a cut state of the full spool and a guide roller of FIG. 6;
    Fig. 8 is a diagram of a winding device according to a third embodiment;
    Fig. 9 is a diagram of a winding device according to another embodiment;
    Fig. 10 is a diagram showing a conventional winding device; and
    Fig. 11 is a schematic sectional view illustrating the initial stage of formation of a web roll in the device shown in FIG. 10. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment [0012] A web winding device according to a first embodiment of the present invention will now be described with reference to FIGS. 1 to 5.
    As shown in FIG. 1, the web winding device comprises guide rollers 11 to 15, an endless belt 16 looped on the guide rollers 11 to 15, a spool 17 rotated by the belt 16 and a calender 18. The device web winding is configured to wind the web 19 compressed by the calender 18.
    The calender 18 comprises four rollers. Of the four rolls of the calender 18, the one with which the web 19 is last engaged is the last calender roll 18a. As shown in FIG. 2, the last calender roll 18a is provided to push the web 19 downwards using 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 roll 18a or 18b on the front side.
    Among the guide rollers 11 to 15, two guide rollers 11 and 12 are arranged so that, when the ply 19 is wound, the path of movement of a spool 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. That is to say that the roller 11 is a web-fed guide roller 11, to which the web 19 is fed from the calender 18. A first end of a lever 24 is rotatably supported 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 a movable guide roller 12, which is adapted to be moved between a winding position, which is indicated by the solid lines. sure 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 two guide rollers 13, 14 are arranged below the web-fed guide roller 11 and the movable guide roller 12. The guide rollers 13 and 14 are arranged in a position to guide the belt 16 of so that the belt 16 passes under a full spool 22. The guide roller 13 is driven by a motor 23 and serves as a drive roller.
    The guide roller 14 is arranged below the calender 18. The guide roller 14 can be moved by a pneumatic cylinder 25, which serves as a moving means, among a start winding position PI, which is indicated by the solid line in fig. 1, and a full coil 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.
    The web winding device comprises the spool support shaft 21, a guiding 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 device 27 prevents the coil 17 which is supported by the spool support shaft 21 from moving in the axial direction of the spool support shaft 21.
    As shown in FIGS. 3A, 3B, and 4, the guide mechanism 26 includes 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 for rotatably supporting the spool support shaft 21. In the present embodiment, the spool support shaft 21 is supported on one side.
    The slider 29 is maintained in a state in which it compresses the spool 17, which is fixed on the spool support shaft 21, against the web fed guide roll 11 and the movable guide roll 12 with the belt 16 between them. When the coil 17 winds the web 19, the slider 29 is moved downwardly as the winding diameter of the web 19 wound on the coil 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 web fed guide roll 11 and the movable guide roller 12 with the belt 16 between them. As the winding diameter of the web 19 wound on the spool 17 increases, the guide mechanism 26 moves the spool support shaft 21 so that the distances from the spool support shaft 21 relative to the web fed guide roll 11 and the movable guide roll 12, increase.
    The restriction mechanism 27 comprises resilient elements 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 bringing the compressed air into 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 compresses the coil 17. This limits the movement 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 movement 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.
    A web compression portion 34 is provided between the web fed guide roll 11 and the movable guide roll 12. Before the web 19 is wound on the spool 17, the web compression portion 34 compresses. the web 19 with the web fed guide roll 11. The web compression portion 34 comprises a pressure roll 35. More specifically, the web compression portion 34 comprises a support arm 36, a press roll 35, and a web press 34. pressure spring 37. The support arm 36 is oscillatingly supported at a first end. The pressure roller 35 is rotatably supported by a second end of the support arm 36. The pressure spring 37 pushes the pressure roller 35 towards the web-fed guide roller 11. The pressure roller 35 has a length greater than the width of the belt 16. The pressure roller 35 is configured to be able to press the web 19, which moves together with the belt 16 along the web-fed guide roller 11, to the web-fed guide roller 11 on the web. the entire width of the web 19.
    We now describe the operation of the winding device of the web as described above.
    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 air supply compressed 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 in a predetermined position of the spool 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 press the spool 17 from the inside. so that the spool 17 is kept 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 the 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 web fed guide roller 11 and the movable guide roller 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 support 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 opposed to the surface in contact with the web fed guide roll 11 when it describes a loop. on the web-fed guide roll 11. The web 19 is guided toward the gap 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 being guided to 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 compressed 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. The winding operation is carried out in a state in which the web 19, which is wound on the spool 17, is compressed in a constant manner against the web. web-fed guide roll 11 and the movable guide roll 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 web 19 (web L) wound on the spool 17 while responding to a change in the diameter of the ply L wound on the spool 17. The range of the ply surface that is not compressed by the belt 16 is minimized like that in the winding start state regardless of the winding diameter of the L tablecloth
    In the conventional winding device described in the BACKGROUND OF THE INVENTION with reference to FIGS. 10 and 11, the coil 72 remains in the same position from the beginning of the winding to the full coil state. Therefore, the web L travels a great distance from the air-laid web surface until the web L which has been wound on the web 72 from the beginning of the winding is compressed against the deflection rollers R1, R2 with the belt 71 between them. Therefore, after the web L has been compressed by the calender to remove the air, the web L is moved a great distance in a state that can absorb air until the web L is wound on the reel. 72 and covered with the belt 71. The web L is wound on the coil 72 with a low density of fibers and a large thickness.
    In contrast, in the present embodiment, the web 19 is moved while describing a loop on the web fed guide roll 11, enters the space between the belt 16 and the outer surface of the spool 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 web 19 has been compressed by the calender 18 and the air has been removed, the web 19 is moved a significantly small distance in a state that can absorb air until the web 19 is wound on the spool 17 and covered with the belt 16, relative to the conventional device. The web 19 is thus wound on the spool 17 with a high density of fibers and 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 web 19 by the belt 16. Therefore, even if the coil 17 has no flanges, the web 19 is wound in a good position of the coil 17 without any problem.
    In the conventional winding device of FIGS. 10 and 11, the force with which the belt 71 presses the spool 72 must be received by the spool support shaft 72 until the ply L wound on the spool 72 is pressed against the deflection rollers 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 by the belt 71.
    In contrast, in the present embodiment, the surface of the coil 17 is compressed against the web-fed roll 11 and the movable guide roll 12 with the belt 16 between them or with the belt 16 and the web 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.
    The web 19 wound on the spool 17 is compressed between the web compression portion 34 and the web-fed guide roller 11 before being wound on the spool 17. More specifically, the ply 19 is compressed against the web web-fed guide roll 11 with the belt between them by the pressure roller 35 of the web compression portion 34, and the pressing force is determined by the pressure spring 37. Thus, with respect to the case in which the web 19 is wound on the spool 17 without being compressed by the web compression portion 34, the ply 19 is wound on the spool 17 with a small amount of air contained in the ply 19. Therefore, the ply 19 is wound on the coil 17 in a state of high fiber density without increasing the pressure force with which the belt 16 winds the web 19 on the coil 17.
    As shown in FIG. 5, as the winding progresses to the full coil state, the calender 18 and the motor 23 are stopped, and the winding is completed. 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. 5, 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 roller 12 is moved into the winding position and the guide roller 14 is moved into the position. winding start P1. Then, the winding of the sheet 19 is restarted.
    The present embodiment obtains the following advantages.
    (1) The sheet winding device comprises guiding rollers 11 to 15, an endless belt 16 forming a loop on the guide rollers 11 to 15, a spool 17 driven in rotation by the belt 16 and a calender 18. The sheet winding device is configured to wind the web 19 compressed by the calender 18. The sheet winding device is provided with the web compression portion 34. Of the guide rolls 11 to 15 the web-fed guide roller 11 receives feed from the web 19 from the calender 18. The web compression portion 34 compresses the web 19 between the web compression portion 34 and the guide roller fed with the web. Next, the web 19 is compressed between the web compression portion 34 and the web-fed guide roll 11 and then wound on the web 17. Thus, with respect to a case in which the web 19 is wound on the bob 17 without being compressed by the web compression portion 34, the web 19 is wound on the coil 17 with a small amount of air contained in the web 19. Therefore, the web 19 is wound on the coil 17 in a high fiber density state without increasing the pressure force with which the belt 16 winds the web 19 on the coil 17.
    (2) The web compression portion 34 is the pressure roller 35, which is compressed by the web-fed guide roller 11. With this configuration, the air is discharged from the web 19 with a simple configuration consisting of compressing the web 19 with the pressure roller 35.
    [0039] (3) The pressure roller 35 is arranged between the web-fed guide roller 11 and the movable guide roller 12. The movable guide roller 12 can oscillate between the winding position and the lifting position. With this configuration, since the web 19 is compressed immediately before being wound on the spool 17, the increase in width of the web 19, when wound on the spool 17 is more effectively prevented.
    (4) The web winding device comprises the spool support shaft 21, the guide mechanism 26, and the restriction mechanism 27. The spool support shaft 21 fixes the spool 17. At 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 web fed guide roller 11 and the movable guide roller 12 with the belt 16. between them. As the diameter of the ply 19 wound on the spool 17 increases, the guide mechanism 26 moves the spool support shaft 21 so that the distance from the spool support shaft 21 from the web-fed guide roll 11 and the movable guide roll 12 increase. The restriction mechanism 27 prevents the spool 17 from moving in the axial direction of the spool support shaft 21. With this configuration, the spool 17 has no flanges and starts winding from a state wherein the spool 17 is pressed against the web fed guide roll 11 and the movable guide roll 12 with the belt 16 between them. Therefore, unlike the conventional device in which the web is wound on the reel having flanges with the belt therebetween, the compressed web 19 does not enter between a belt and the flanges. Thus, no licking occurs at the edges of the ply 19. In addition, since the spool 17 has no flanges, it is possible to widen the width of the belt 16, and it is possible to prevent deterioration of quality due to licking at the edges of the web.
    The surface of the coil 17 is pressed against the web-fed guide roller 11 and the movable guide roller 12 with the belt 16 between them or with the belt 16 and the web 19 wound on the spool 17 between them to 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 makes it possible to reduce the resistance of the spool support shaft 21 with respect to that of the conventional winding device.
    [0042] (5) The spool support shaft 21 is supported 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.
    (6) The guiding mechanism 26 comprises the guide shafts 28, the slider 29 and the bearings 30. 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 addition, the guide mechanism 26 is provided with a moving means (the pneumatic cylinder 25). The moving means (the pneumatic cylinder 25) moves the guide roller 14, which is one of the different guide rolls of the web-fed guide roller 11 and the movable guide roller 12, in a direction in which the belt 16 forms a loop on the spool 17, which is supported by the spool support shaft 21, pushes the spool 17 towards the web-fed guide roller 11 and the movable guide roller 12. With this configuration, it is possible to move the belt 16 so that the web 19 is wound on the spool 17 smoothly without increasing the number of guide rollers provided in the web winding device.
    (7) The restriction mechanism 27 comprises the elastic elements 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 positions corresponding to the elastic elements 31. When the compressed air is fed to the passage 32, each elastic element 31 is maintained in a state in which it compresses the coil 17. This prevents the movement of the spool 17 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 movement 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 [0045] A second embodiment will now be described with reference to FIGS. 6 and 7.
    In the web winding device of this embodiment, the relationship between the web-fed 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. The same or similar reference numbers are assigned to those components that are identical or similar to the corresponding components.
    As shown in FIG. 6, the calender 18 of the present embodiment is considerably different from that of the first embodiment, in that the last calender roll 18a and the other calender rolls 18b, which constitute the calender 18, are arranged on a substantially plane. vertical, and in that the last calender roll 18a is compressed against the web fed guide roller 11 with the belt 16 and the web 19 between them. In addition, the number of calender rolls 18b constituting the calender 18, which is two, is smaller than that of the first embodiment.
    As shown in FIG. 7, in the calender 18, the last calender roll 18a is pushed by the spring 20 toward the web fed guide roller 11 of the web winding device. 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. In fig. 7, the illustration of the roller 18b arranged on the upper side is omitted, and the illustration of the springs 20 is omitted in FIG. 6.
    In the present embodiment, the last calender roll 18a, which is the last roll of the calender 18, serves as the web compression portion 34. That is, the web compression portion 34 comprises the last calender roll 18a. With this configuration, it is unnecessary to provide an additional roll serving as a web compression part, and the web 19, from which air has been removed by the calender 18, is wound on the spool 17 before absorbing the web. air. Therefore, it is possible to wind the web 19 on the spool 17 at a high fiber density.
    Thus, in contrast to the first embodiment, the present embodiment shortens the distance over which the web 19 is moved until the web 19 is wound on the spool 17 via the web-fed guide roller 11. and the belt 16 after having been compressed by the calender 18. Therefore, in addition to the advantages (1) to (7) of the first embodiment, the second embodiment obtains the following advantage.
    (8) In the web winding device, the rollers 18a, 18b which constitute the calender 18 are arranged on a substantially vertical plane. Then, the last calender roll 18a is pushed toward the web-fed guide roll 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 last calender roll 18a serves as a web compression part. Since the web 19, from which air has been removed by the calender 18, is wound on the spool 17 before absorbing the air, the ply 19 can be wound on the spool 17 in a state of density. high fiber. Also, this embodiment shortens the distance on which the web 19 is moved until the web 19 is wound on the spool 17 via the web fed guide roll 11 and the belt 16 after being compressed by the last one. Thus, 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 spreading the web 19 in the width direction is more effectively prevented.
    Third Embodiment [0052] A third embodiment will now be described with reference to FIG. 8.
    In the web winding device of this embodiment, the configuration of the web compression portion 34 is different from that of the first embodiment. The other configuration is basically the same as that of the first embodiment. The same or similar reference numbers are assigned to those components that are identical or similar to the corresponding components.
    The web compression portion 34 comprises a plurality of rollers 41,42, 43 and a belt 44 forming a loop on the rollers 41,42,43. The support arm 36 is oscillatingly supported at a first end. The roller 42 is rotatably supported by a second end of the support arm 36. The roller 42 is urged by a pressure spring 45 to compress the belt 44 to the web fed guide roller 11. The belt 44 moves between the rollers 41 and 42 while covering one side of the web 19, which is fed from the last calender roll 18a of the calender 18 and passes to a position in which the web 19 forms a loop on the fed guidance roller therefore, according to the configuration of this embodiment, the web 19 is unlikely to capture air after passing the last calender roll 18a of the calender 18 and before receiving the force. pressure of the web fed guide roll 11 and the roll 42 of the web compression portion 34.
    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 second embodiment may comprise a pressure roller 35 in a position opposite to the web-fed guide roller 11. The pressure roller 35 compresses the web 19, which is moved together with the web. The pressure roller 35 extends parallel to the web-fed guide roller 11 and includes a pressure spring 37, which pushes the rotation shaft of the pressure roller 35. towards the central axis of the web-fed guide roller 11. In this configuration, the web 19, which is compressed by the calender 18, is further compressed by the pressure roller 35 and the air is discharged from the web 19.
    The number of rollers constituting the calender 18 is not limited to three or four, but can be five or more.
    In the configuration in which the last calender roll 18a of the calender 18 is compressed against the web-fed 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 shell 18, do not necessarily need to be positioned on a vertical plane. For example, the axes of rotation can be positioned on a horizontal plane or an oblique 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 passage 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 on 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 rings protrude from the annular grooves to support the spool 17.
    Instead of being provided with resilient members 31, the restriction mechanism 27 may be configured as an element that projects from the outer circumferential surface of the coil support shaft 21 and engages a longitudinal end of the coil 17 to limit the movement of the coil 17 in the axial direction.
    The spool support shaft 21 can be supported not on one side, but on both sides.
    The web winding device does not necessarily include the guiding mechanism 26, which moves the spool support shaft 21 so that the distance between the spool support shaft 21 and the guide roller fed in ply 11 increases as the winding diameter of the ply 19 wound on the spool 17 increases. For example, the present invention may be applied to a web winding device having a configuration of the conventional winding device described in the BACKGROUND OF THE INVENTION, wherein the spool support shaft 21 to secure the spool 17 rotates in a fixed position from the beginning of the winding until the end of the winding.
    Therefore, the present examples and embodiments should be considered as illustrative and not limiting and the invention should not be limited to the details given herein, but may be modified in scope and equivalence of the appended claims. .
    权利要求:
    Claims (6)
    [1]
    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), wherein: the web winding device is configured to wind a web (19) which has been compressed by the calender (18), the guide rollers (11-15) comprise a roller of web fed guide (11) which is fed with the web (19) from the calender (18), and the web winding device further comprises a web compression portion (34), which compresses the web (19) between the web compression portion (34) and the web fed guide roll (11).
    [2]
    A web winding device according to claim 1, wherein the web compression portion (34) comprises a pressure roller (35) which is compressed against the web fed guide roller (11).
    [3]
    A web winding device according to claim 2, wherein: the guide rollers (11-15) comprise a movable guide roll (12), which is movable between a winding position and a lifting position, and the pressure roller (35) is arranged between the web fed guide roller (11) and the movable guide roller (12).
    [4]
    A web winding device according to claim 1, wherein the web compression portion (34) comprises a plurality of rollers (41-43), and a belt (44) which forms a loop on the rollers ( 41-43) and is compressed against the web-fed guide roller (11).
    [5]
    A web winding device according to claim 1, wherein the web compression portion (34) comprises a last calender roll (18a), which is pressed against the web fed guide roll (11).
    [6]
    6. A web winding device according to any one of claims 1 to 5, further comprising: a spool support shaft (21), which supports the spool (17), is intended to be integral in rotation with the coil; and a restriction mechanism (27), which is configured to prevent the spool (17) from moving in an axial direction of the spool support shaft (21).
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    同族专利:
    公开号 | 公开日
    DE102017112929A1|2017-12-21|
    JP6720716B2|2020-07-08|
    CH712582B1|2018-01-31|
    CN107523904A|2017-12-29|
    CN107523904B|2020-01-10|
    JP2017222956A|2017-12-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SU65242A1|1941-01-23|1944-11-30|П.М. Максимов|Adaptation to burrs, etc. Machines for moistening canvases|
    IN163508B|1984-03-15|1988-10-01|Rieter Ag Maschf|
    IT1283695B1|1995-09-04|1998-04-23|Rieter Ag Maschf|MACHINE FOR WRAPPING ROLLS OF CANVAS|
    DE19539365A1|1995-10-23|1997-04-24|Rieter Ag Maschf|Winding device|
    CH695500A5|2002-02-27|2006-06-15|Rieter Ag Maschf|Cotton web feeding machine for wrapping fixture arrangement, has openings provided on circumference of cylindrical rollers and disembogue into rollers cavity, and valve, conduits, hole and coupler connecting cavity with low pressure source|
    IT1401066B1|2010-07-23|2013-07-12|Marzoli Combing & Flyer S P A Ora Marzoli S P A|LAPTOP DEVICE FOR A STRAINER|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2016120939A|JP6720716B2|2016-06-17|2016-06-17|Lap winding device|
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