JP5997346B1 - Film winder - Google Patents

Abstract

Provided is a film winding device capable of dealing with winding cores having different lengths and suppressing the occurrence of a gauge band when performing direct-acting shaftless winding. A film winding apparatus includes a winding mechanism that is detachably mounted on an upstream winding base and a downstream winding base. When the film 150 is wound, the film winding device 100 rotates the shafts 32 and 34 with the motor 28 while the electromagnetic clutch 44 is released and the electromagnetic clutch 41 is engaged. The film 150 can be wound while the core 151 held by the pins 26 and 27 is swung in the axial direction. [Selection] Figure 10

Description

  The present invention relates to a film winding device.

  2. Description of the Related Art Conventionally, there is known a linear motion type sheet winding apparatus configured to be able to move two winding shafts in a horizontal direction and a vertical direction (for example, see Patent Document 1).

  The sheet winding device of Patent Document 1 includes an upstream winding base and a downstream winding base that move in the horizontal direction, and a winding arm that is detachably mounted on the upstream winding base and the downstream winding base, respectively. And. The upstream winding base and the downstream winding base are configured so that the mounted winding arm can be moved in the vertical direction and the mounted winding arms can be transferred to each other. The winding arm rotatably supports a winding shaft (air shaft). A cylindrical winding core is fitted on the winding shaft, and a sheet is wound around the winding core.

  In this sheet winding apparatus, when the sheet is wound, the sheet is wound by the winding shaft of the winding arm attached to the upstream winding base. When the winding shaft is switched, the winding arms on which the upstream winding base and the downstream winding base are mounted are handed over to each other so that the upstream winding base and the downstream winding base are separated from each other in the horizontal direction. Moved. For this reason, the winding shaft that is winding is disposed on the downstream side, and the winding shaft on which the new winding core is fitted is disposed on the upstream side. Thereafter, the winding arm transferred to the upstream winding base moves in the vertical direction, so that the sheet comes into contact with the new winding core of the winding shaft of the winding arm. Then, the sheet is cut, and the cut sheet is wound around a new core.

  Here, in the sheet winding apparatus of Patent Document 1, since the winding shaft is inserted into the cylindrical winding core that winds the sheet, it is possible to improve the rigidity of the winding core during winding of the sheet. is there. Thereby, even if it is a case where the winding diameter at the time of winding up a sheet | seat with a large specific gravity and a width | variety becomes large, winding quality can be stabilized.

JP2013-234016A

  However, since the conventional sheet winding device described above uses a winding shaft, a device for inserting and removing the winding shaft with respect to the winding core is required, and the inertial force during winding is increased.

  Therefore, when there is no possibility that the core is bent during winding (for example, when the specific gravity or winding diameter of the sheet (film) is small, or when the tension during winding is low), the winding shaft is used. However, it is conceivable to perform so-called shaft-less winding while holding both ends of the winding core. And when performing winding without a shaft, it is desired to correspond to the winding core from which length differs.

  In addition, the film supplied from the film production line may have uneven thickness in the width direction. When the unevenness is laminated along with the winding, the gauge band (uneven thickness) is wound on the wound roll. May occur.

  The present invention has been made in order to solve the above problems, and the object of the present invention is to cope with cores of different lengths in the case of direct-acting shaftless winding, It is an object of the present invention to provide a film winding device capable of suppressing the generation of a gauge band.

  The film winding device according to the present invention is capable of winding a film on a cylindrical winding core and switching the winding core, the upstream winding base and the downstream winding base moving in the horizontal direction, and the upstream side A winding mechanism that is detachably mounted on the winding base and the downstream winding base, and that rotatably supports the winding core. The film winding device is configured to wind the film with a winding core of a winding mechanism attached to the upstream winding base when the film is wound. Further, the film winding device delivers the winding mechanism with the upstream winding base and the downstream winding base attached to each other when the winding core is switched, and the upstream winding base and the downstream winding base are separated from each other. In this way, the winding core being wound is disposed on the downstream side, and after the new winding core is disposed on the upstream side, it is transferred to the upstream winding base. The winding mechanism is moved in the vertical direction, and the film is cut and wound around a new core of the winding mechanism. The winding mechanism is attached to the upstream winding base or the downstream winding base, and is formed to extend in the axial direction of the pair of body members that are moved in the vertical direction, and couples the pair of body members. Connecting member, a first shaft rotatably supported by the connecting member and connected to the first motor, and a second shaft rotatably supported by the connecting member and connected to the second motor via the first clutch. A first slide that is configured to move along the axial direction when the first shaft is rotated by the shaft and the first motor, and that is rotatably provided with a first chuck that holds one end of the core. The second slide is configured to move along the axial direction by rotating the second shaft by the member and the second motor, and the second chuck holding the other end of the core is rotatably provided. Members and It is rotatably supported by the slide member, including a splined shaft for transmitting a driving force outputted from the third motor to the first chuck, a second clutch provided between the first shaft and second shaft. The film winding device rotates the first shaft and the second shaft by the first motor while the first clutch is released and the second clutch is engaged when the film is wound. The film can be wound while the core held by the first chuck and the second chuck is swung in the axial direction.

  As described above, by allowing the first slide member provided with the first chuck and the second slide member provided with the second chuck to be movable in the axial direction, it is possible to cope with winding cores having different lengths. . That is, even when the lengths of the winding cores are different, the film can be wound while the winding core is appropriately held by the first chuck and the second chuck. In addition, by winding the film while swinging the core in the axial direction, if there is unevenness in the thickness in the width direction of the film, the unevenness can be scattered in the width direction, thus suppressing the occurrence of gauge bands. can do.

  According to the film winding device of the present invention, when a linear motion type shaftless winding is performed, it is possible to cope with winding cores having different lengths and to suppress the occurrence of a gauge band.

It is the schematic diagram which showed the outline of the film winding apparatus by one Embodiment of this invention. It is the figure which showed the state which the winding diameter increased in the film winding apparatus of FIG. It is the figure which showed the state which the downstream winding base and the downstream touch roller base moved to the upstream in the film winding apparatus of FIG. In the film winding device of FIG. 3, the upstream winding base and the downstream winding base deliver the winding mechanism to each other, and the upstream touch roller base and the downstream touch roller base pass the touch roller arm to each other. FIG. FIG. 5 is a view showing a state where a downstream winding base and a downstream touch roller base are moved downstream in the film winding apparatus of FIG. 4. FIG. 6 is a view showing a state in which the upstream winding base winding mechanism is lowered and the upstream touch roller base touch roller arm is raised in the film winding apparatus of FIG. 5. It is the figure which showed the state in which a roll is delivered to a loading platform in the film winding apparatus of FIG. It is the schematic block diagram which expanded and showed one side of the main body member in the winding mechanism of a film winding apparatus. It is the schematic block diagram which expanded and showed the other side of the main body member in the winding mechanism of a film winding apparatus. It is the schematic block diagram which showed the state in which the winding mechanism of FIG. 8 hold | maintained the core. FIG. 10 is a schematic configuration diagram illustrating a state in which the winding mechanism of FIG. 9 holds the core.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

-Schematic configuration of film winding device-
First, with reference to FIG. 1, the schematic structure of the film winding apparatus 100 by this embodiment is demonstrated.

  As shown in FIG. 1, the film winding device 100 is configured to wind up the film 150 supplied from the film forming line (upstream side) and to switch the winding core 151 that winds up the film 150. In the film winding device 100, the cylindrical core 151 is held at both ends, and the winding core 151 is rotated to wind the film 150, so-called shaftless winding is performed. Moreover, the film winding apparatus 100 is configured to perform lower winding so that the upper surface of the film 150 is disposed inside.

  The film 150 supplied from the film forming line is, for example, a resin band-like film, and can be wound without a shaft. Further, the film 150 may have uneven thickness in the width direction (X1 and X2 directions).

  The film winding device 100 includes an upstream winding base 11 and a downstream winding base 12, a winding mechanism 13 that is detachably mounted on the upstream winding base 11 and the downstream winding base 12, and an upstream A side touch roller base 14 and a downstream touch roller base 15, and a touch roller arm 16 that is detachably attached to the upstream touch roller base 14 and the downstream touch roller base 15, respectively.

  The upstream winding base 11, the downstream winding base 12, the upstream touch roller base 14, the downstream touch roller base 15 and the like are provided at both ends in the width direction of the film 150 (axial direction of the winding core 151). It has been. In other words, these are provided so as to face each other in the width direction of the film 150, but only one side is shown in FIG.

  The upstream winding base 11 is provided to be movable in the horizontal direction (Y1 and Y2 directions). The upstream winding base 11 is configured to be able to move the mounted winding mechanism 13 in the vertical direction (Z1 and Z2 directions) and to transfer the mounted winding mechanism 13 to the downstream winding base 12. Has been.

  The downstream winding base 12 is disposed on the downstream side (Y1 direction side) with respect to the upstream winding base 11, and is provided so as to be movable in the horizontal direction. The downstream winding base 12 is configured to be able to move the mounted winding mechanism 13 in the vertical direction, and to transfer the mounted winding mechanism 13 to the upstream winding base 11.

  The winding mechanism 13 is configured to hold the winding core 151 rotatably. Details of the winding mechanism 13 will be described later.

  The upstream touch roller base 14 is disposed below the upstream winding base 11 and the downstream winding base 12. The upstream touch roller base 14 is configured to be able to move the attached touch roller arm 16 in the vertical direction and to deliver the attached touch roller arm 16 to the downstream touch roller base 15. The upstream touch roller base 14 is fixed so as not to move in the horizontal direction.

  The downstream touch roller base 15 is disposed below the upstream winding base 11 and the downstream winding base 12. The downstream touch roller base 15 is disposed downstream of the upstream touch roller base 14 and is provided so as to be movable in the horizontal direction. Further, the downstream touch roller base 15 is configured to be able to move the attached touch roller arm 16 in the vertical direction and to deliver the attached touch roller arm 16 to the upstream touch roller base 14.

  The touch roller arm 16 is configured to rotatably support the touch roller 16a. The touch roller 16 a is provided to come into contact with the lower surface of the film 150 and press the film 150 against the core 151.

  The film winding device 100 is provided with a plurality of rollers 17 for conveying the film 150 and a cutting device (not shown) for cutting the film 150 when the winding core 151 is switched. . In addition, the film winding device 100 is provided with a loading platform 18 on which the roll 152 (see FIG. 7) on which the film 150 has been wound is placed.

-Operation of film winding device-
Next, with reference to FIGS. 1-7, operation | movement of the film winding apparatus 100 by this embodiment is demonstrated.

  At the time of winding the film 150 by the film winding device 100, as shown in FIG. 1, the upstream winding base 11 is arranged on the upstream side (Y2 direction side), and the downstream winding base 12 and the downstream touch. The roller base 15 is disposed on the downstream side (Y1 direction side). Further, the winding mechanism 13 mounted on the upstream winding base 11 is disposed on the lower side, and the winding mechanism 13 mounted on the downstream winding base 12 is disposed on the upper side. The attached touch roller arm 16 is arranged on the upper side, and the touch roller arm 16 attached to the downstream touch roller base 15 is arranged on the lower side.

  First, the film 150 supplied from the film forming line (upstream side) is mounted on the winding core 151 of the winding mechanism 13 mounted on the upstream winding base 11 and the upstream touch roller base 14 by a plurality of rollers 17. It is conveyed between the touch roller arm 16 and the touch roller 16a. Then, the film 150 is wound on the core 151 of the upstream winding base 11. At this time, the core 151 is rotated counterclockwise in FIG. 1 in a state where the lower surface of the film 150 is pressed by the touch roller 16a, and the film 150 is wound so that the upper surface of the film 150 is disposed on the inner side. That is, the film winding device 100 performs the lower winding.

  Then, as shown in FIG. 2, the upstream winding base 11 moves to the downstream side (Y1 direction side) as the winding diameter increases due to the winding of the film 150.

  Thereafter, when the switching of the winding core 151 is started, first, as shown in FIG. 3, the downstream winding base 12 and the downstream touch roller base 15 move upstream (Y2 direction side). As a result, the winding mechanism 13 mounted on the upstream winding base 11 is disposed adjacent to the downstream winding base 12, and the winding mechanism 13 mounted on the downstream winding base 12 is disposed upstream. Adjacent to the base 11. Similarly, the touch roller arm 16 attached to the upstream touch roller base 14 is disposed adjacent to the downstream touch roller base 15, and the touch roller arm 16 attached to the downstream touch roller base 15 is connected to the upstream touch roller 15. Adjacent to the base 14.

  As shown in FIG. 4, the winding mechanism 13 (lower winding mechanism 13) attached to the upstream winding base 11 is transferred to the downstream winding base 12, and the downstream winding base 11. The winding mechanism 13 (upper winding mechanism 13) mounted on the base 12 is transferred to the upstream winding base 11. Similarly, the touch roller arm 16 (upper touch roller arm 16) attached to the upstream touch roller base 14 is transferred to the downstream touch roller base 15 and attached to the downstream touch roller base 15. The touch roller arm 16 (lower touch roller arm 16) is transferred to the upstream touch roller base 14.

  Then, as shown in FIG. 5, while the film 150 pressed by the touch roller 16 a delivered to the downstream touch roller base 15 is wound up by the winding core 151 delivered to the downstream winding base 12, The downstream winding base 12 and the downstream touch roller base 15 move downstream. Further, the upstream winding base 11 moves upstream. As a result, the winding core 151 performing winding is disposed on the downstream side, and a new winding core 151 is disposed on the upstream side.

  Thereafter, as shown in FIG. 6, the winding mechanism 13 mounted on the upstream winding base 11 is lowered and the touch roller arm 16 mounted on the upstream touch roller base 14 is raised. Thereby, the film 150 is pressed against the new core 151 of the upstream winding base 11 by the touch roller 16 a of the upstream touch roller base 14.

  Then, the film 150 is cut by a cutting device (not shown), and the cut film 150 is wound around a new core 151 of the winding mechanism 13 attached to the upstream winding base 11. The new core 151 is rotated counterclockwise, and the film 150 is taken up by the new core 151. In this manner, the winding core 151 for winding the film 150 is switched while winding the film 150. That is, in the film winding device 100, when the core 151 is switched, the winding of the film 150 is performed without being stopped while the core 151 is linearly moved. Yes.

  Thereafter, as shown in FIG. 7, the touch roller arm 16 attached to the downstream touch roller base 15 is lowered, and the downstream touch roller base 15 waits until the next switching of the core 151. Further, the downstream winding base 12 moves to the downstream side (Y1 direction side) and the loading platform 18 rises. Thereby, the roll 152 in which the winding of the film 150 is finished is delivered to the loading platform 18.

  Thereafter, the new winding core 151 is held by the winding mechanism 13 attached to the downstream winding base 12, and the winding mechanism 13 is raised. Further, the roll 152 is discharged from the loading platform 18.

  By repeating the above operation, the film 150 is continuously wound while the core 151 is switched.

-Configuration of winding mechanism-
Next, the configuration of the winding mechanism 13 of the film winding apparatus 100 will be described with reference to FIGS.

  As shown in FIGS. 8 and 9, the winding mechanism 13 includes main body members 21 and 22, a connecting member 23 that connects the main body members 21 and 22, and slide members 24 and 25 that are movable along the connecting member 23. And chucks 26 and 27 for holding the winding core 151 (see FIG. 1), and motors 28-30.

  The main body members 21 and 22 are provided so as to face each other in the width direction of the film 150 (see FIG. 1). The main body member 21 (see FIG. 8) is attached to the upstream winding base 11 or the downstream winding base 12 on one side (X2 direction side) in the width direction of the film 150, and the upstream winding base 11 or downstream thereof. It is moved in the vertical direction by the side winding base 12. The main body member 22 (see FIG. 9) is attached to the upstream winding base 11 or the downstream winding base 12 on the other side (X1 direction side) in the width direction of the film 150, and the upstream winding base 11 or downstream thereof. It is moved in the vertical direction by the side winding base 12.

  The connecting member 23 is formed so as to extend in the axial direction (X1 and X2 directions) of the core 151, and one end is connected to the upper end portion of the main body member 21 and the other end is connected to the upper end portion of the main body member 22. It is connected. For this reason, when the main body members 21 and 22 are moved by the upstream winding base 11 or the downstream winding base 12, the main body members 21 and 22 are moved in a synchronized state. That is, the main body members 21 and 22 are configured to move integrally.

  The slide members 24 and 25 are movable in the axial direction of the core 151 and are disposed below the connecting member 23. The slide members 24 and 25 are examples of the “first slide member” and the “second slide member” in the present invention, respectively.

  The slide member 24 (see FIG. 8) is disposed in the vicinity of the main body member 21. The slide member 24 includes a slide engagement portion (guide shoe) 24a engaged with the guide rail 23a of the connecting member 23, a shaft insertion portion 24b into which the shaft 32 is inserted, and an arm portion 24c extending downward. . The guide rail 23a of the connecting member 23 is formed so as to extend in the axial direction of the core 151, and the slide engagement portion 24a is configured to move along the guide rail 23a. A spiral groove is formed on the inner peripheral surface of the shaft insertion portion 24b.

  The slide member 25 (see FIG. 9) is disposed in the vicinity of the main body member 22. The slide member 25 includes a slide engagement portion 25a that is engaged with the guide rail 23b of the connecting member 23, a shaft insertion portion 25b into which the shaft 34 is inserted, and an arm portion 25c that extends downward. The guide rail 23b of the connecting member 23 is formed so as to extend in the axial direction of the winding core 151, and the slide engaging portion 25a is configured to move along the guide rail 23b. A spiral groove is formed on the inner peripheral surface of the shaft insertion portion 25b.

  The chuck 26 (see FIG. 8) is provided at the tip of the arm portion 24c of the slide member 24, and is configured to hold one end portion (end portion on the X2 direction side) of the winding core 151. The chuck 26 moves in the radial direction in response to the movement of the piston 26b in the axial direction, the cylindrical casing 26a provided rotatably with respect to the arm portion 24c, the piston 26b disposed in the casing 26a. Lug 26c to be used, and pulley 26d provided on casing 26a. The piston 26b is configured to move in the axial direction by an air cylinder (not shown). And the chuck | zipper 26 presses and hold | maintains the cylindrical core 151 from the inner side by protruding the lug 26c. The chuck 26 is an example of the “first chuck” in the present invention.

  The chuck 27 (see FIG. 9) is provided at the distal end of the arm portion 25c of the slide member 25, and is configured to hold the other end portion (end portion on the X1 direction side) of the winding core 151. The chuck 27 moves in the radial direction in response to the movement of the piston 27b in the axial direction, the cylindrical casing 27a provided rotatably with respect to the arm portion 25c, the piston 27b disposed in the casing 27a. And a lug 27c. The piston 27b is configured to move in the axial direction by an air cylinder (not shown). And the chuck | zipper 27 presses and hold | maintains the cylindrical core 151 from the inner side by protruding the lug 27c. The chuck 27 is an example of the “second chuck” in the present invention.

  The motor 28 (see FIG. 8) is a driving force source for moving the slide member 24, and is provided on the main body member 21. A pulley 28 a is provided on the output shaft of the motor 28. Shafts 31 and 32 are provided between the motor 28 and the slide member 24. The motor 28 is an example of the “first motor” in the present invention.

  The shaft 31 is rotatably supported by the main body member 21. The shaft 31 is provided with a pulley 31 a at one end, and the other end is connected to the shaft 32 via a coupling 40. A belt 39 is wound around the pulleys 31 a and 28 a so that the power output from the motor 28 can be transmitted to the shaft 31. The shaft 31 is provided with a gear 31b, and a rotary encoder (not shown) for detecting the rotation of the shaft 31 is connected to the gear 31b. This rotary encoder is provided to detect the position of the slide member 24 in the axial direction.

  The shaft 32 is rotatably supported by the connecting member 23. The shaft 32 is a lead screw, and a spiral groove is formed on the outer peripheral surface. The shaft 32 is inserted into the shaft insertion portion 24b of the slide member 24, and the groove on the outer peripheral surface of the shaft 32 and the groove on the inner peripheral surface of the shaft insertion portion 24b are engaged with each other. The shaft 32 is connected to the shaft 33 via the electromagnetic clutch 41 and the coupling 42. The shaft 33 is rotatably supported by the connecting member 23. The bearing that supports the shaft 32 can receive a radial load and an axial load. The shaft 32 is an example of the “first shaft” in the present invention, and the electromagnetic clutch 41 is an example of the “second clutch” in the present invention.

  The motor 29 (see FIG. 9) is a driving force source for moving the slide member 25, and is provided on the main body member 22. Shafts 34 to 36 are provided between the motor 29 and the slide member 25. The motor 29 is an example of the “second motor” in the present invention.

  The shafts 35 and 36 are rotatably supported by the main body member 22. The shaft 36 is provided with a pulley 36 a at one end, and the other end is connected to the output shaft of the motor 29 via the electromagnetic clutch 44 and the coupling 43. One end of the shaft 35 is connected to the shaft 34 via a coupling 46, and a pulley 35a is provided at the other end. A belt 45 is wound around the pulleys 35 a and 36 a so that the power output from the motor 29 can be transmitted to the shaft 34. The shaft 35 is provided with a gear 35b, and a rotary encoder 47 for detecting the rotation of the shaft 35 is connected to the gear 35b. The rotary encoder 47 is provided for detecting the position of the slide member 25 in the axial direction. The electromagnetic clutch 44 is an example of the “first clutch” in the present invention.

  The shaft 34 is rotatably supported by the connecting member 23. The shaft 34 is a lead screw, and has a spiral groove formed on the outer peripheral surface. The shaft 34 is inserted into the shaft insertion portion 25b of the slide member 25, and the groove on the outer peripheral surface of the shaft 34 and the groove on the inner peripheral surface of the shaft insertion portion 25b are engaged with each other. The groove formed in the shaft 34 has the same direction (screw direction) and lead as the shaft 32. For this reason, the movement amount of the slide member 24 with respect to the rotation of the shaft 32 and the movement amount of the slide member 25 with respect to the rotation of the shaft 34 are the same. The shaft 34 is connected to the shaft 33 via the coupling 50. The bearing that supports the shaft 34 can receive a radial load and an axial load. The shaft 34 is an example of the “second shaft” in the present invention.

  The motor 30 (see FIG. 8) is a driving force source for rotating the chuck 26 and is provided on the main body member 21. A shaft 37 and a spline shaft 38 are provided between the motor 30 and the chuck 26. The motor 30 is an example of the “third motor” in the present invention.

  The shaft 37 is rotatably supported by the main body member 21. One end of the shaft 37 is connected to the output shaft of the motor 30, and a pulley 37 a is provided at the other end. A pulley 21a is rotatably provided on the main body member 21, and a belt 48 is wound around the pulleys 21a and 37a. For this reason, the motive power output from the motor 30 is transmitted to the pulley 21a. A through hole is formed at the center of the pulley 21a, and inner teeth extending in the axial direction are formed on the inner peripheral surface of the through hole.

  External teeth extending in the axial direction are formed on the outer peripheral surface of the spline shaft 38. One end of the spline shaft 38 is inserted into the through hole of the pulley 21a, and the external teeth of the spline shaft 38 and the internal teeth of the pulley 21a are fitted. For this reason, the spline shaft 38 and the pulley 21a are connected so as not to be relatively rotatable in the rotation direction, and the spline shaft 38 is movable in the axial direction with respect to the pulley 21a.

  The other end side of the spline shaft 38 is rotatably supported by the arm portion 24c of the slide member 24. The spline shaft 38 is provided with a pulley 38a, and a belt 49 is wound around the pulleys 38a and 26d. For this reason, the rotation of the pulley 21a is transmitted to the chuck 26 via the spline shaft 38 or the like.

  That is, in the winding mechanism 13 of this embodiment, the power transmission system for moving the slide members 24 and 25 and the power transmission system for rotating the winding core 151 are separated. In addition, the slide members 24 and 25 can be moved independently, and the slide members 24 and 25 can be moved integrally.

−Operation of winding mechanism−
Next, with reference to FIGS. 8-11, operation | movement of the winding mechanism 13 of the film winding apparatus 100 is demonstrated. In the following, the operation when holding the core 151 and the operation when winding the film 150 with the core 151 will be described.

[Operation when holding the core]
First, in a state before holding the winding core 151, as shown in FIG. 8, the slide member 24 is arranged on the main body member 21 side (X2 direction side), and as shown in FIG. It arrange | positions at the main body member 22 side (X1 direction side). At this time, the electromagnetic clutch 41 is released, and the shaft 32 and the shaft 34 are mechanically separated. Further, the electromagnetic clutch 44 is engaged, and the shaft 34 can be rotated by the motor 29. In this state, one end portion (end portion on the X2 direction side) of the spline shaft 38 is disposed inside the main body member 21. That is, a space for allowing the spline shaft 38 to escape is formed inside the main body member 21.

  A winding core 151 is disposed between the chucks 26 and 27. Thereafter, when the shafts 31 and 32 are rotated by the motor 28, the slide member 24 is moved so as to approach the winding core 151 (to the X1 direction side). The spline shaft 38 is slid with the pulley 21a and moved in the axial direction (X1 direction) together with the slide member 24. Further, when the shafts 33 to 36 are rotated by the motor 29, the slide member 25 is moved so as to approach the core 151 (to the X2 direction side). Note that the rotation direction of the shaft 34 is opposite to the rotation direction of the shaft 32.

  As a result, the tip of the chuck 26 provided on the slide member 24 is inserted into one end of the core 151 as shown in FIG. 10, and the chuck 27 provided on the slide member 25 is inserted as shown in FIG. The tip is inserted into the other end of the core 151. When the length of the core 151 in the axial direction is large, the amount of movement of the slide members 24 and 25 is small, and when the length of the core 151 in the axial direction is small, the slide members 24 and 25 Increases the amount of movement.

  Then, the lug 26c protrudes in the radial direction by moving the piston 26b to the X1 direction side by an air cylinder (not shown). For this reason, when the lug 26 c presses the inner peripheral surface of the core 151, the chuck 26 holds one end of the core 151. Further, the piston 27b is moved to the X2 direction side by an air cylinder (not shown), so that the lug 27c protrudes in the radial direction. For this reason, the lug 27 c presses the inner peripheral surface of the core 151, so that the chuck 27 holds the other end of the core 151.

[Operation when winding film]
Then, when the shaft 37 and the spline shaft 38 are rotated by the motor 30 while the core 151 is held by the chucks 26 and 27, the core 151 and the chuck 27 are rotated together with the chuck 26. Thereby, the film 150 supplied from the film forming line (upstream side) is wound around the core 151.

  Here, when the film 150 is wound, the electromagnetic clutch 41 is engaged and the electromagnetic clutch 44 is released. Thus, when the motor 28 is rotated during winding of the film 150, the shafts 32 and 34 are integrally rotated, and the slide members 24 and 25 are moved in the same direction. That is, the slide members 24 and 25 are moved in the axial direction while maintaining a distance from each other. Then, the rotation directions of the shafts 32 and 34 are alternately changed by the motor 28, whereby the slide members 24 and 25 are swung in the axial direction. That is, in the film winding device 100, the winding core 151 held by the chucks 26 and 27 can be swung in the axial direction while winding the film 150, and so-called oscillating winding can be performed. Is possible.

-Effect-
In the present embodiment, as described above, the slide member 24 provided with the chuck 26 and the slide member 25 provided with the chuck 27 can be moved in the axial direction to correspond to the winding cores 151 having different lengths. be able to. In other words, even when the length of the core 151 is different, the film 150 can be wound up by appropriately holding the core 151 by the chucks 26 and 27. Further, by winding the film 150 while swinging the winding core 151 in the axial direction, when the thickness is uneven in the width direction of the film 150, the unevenness can be scattered in the width direction. Occurrence can be suppressed. Therefore, in the present embodiment, when performing direct-acting shaftless winding, it is possible to cope with the winding cores 151 having different lengths and to suppress the occurrence of gauge bands.

-Other embodiments-
In addition, embodiment disclosed this time is an illustration in all the points, Comprising: It does not become a basis of limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiments, but is defined based on the description of the scope of claims. Further, the technical scope of the present invention includes all modifications within the meaning and scope equivalent to the scope of the claims.

  For example, in the present embodiment, the upstream touch roller base 14 and the downstream touch roller base 15 are disposed below the upstream winding base 11 and the downstream winding base 12, and the film winding apparatus 100 that performs the lower winding is provided. Although the example which applies this invention was shown, it is not restricted to this, The upstream touch roller base and the downstream touch roller base are arrange | positioned above an upstream winding base and a downstream winding base, and the film which winds up The present invention may be applied to a winding device.

  In the present embodiment, the chuck 26 is driven by the motor 30 and the chuck 27 is driven. However, the present invention is not limited to this, and both chucks may be driven by the motor. .

  In this embodiment, the belt 49 is also wound around a pulley (not shown) for applying tension. The same applies to the belts 39, 45 and 48.

DESCRIPTION OF SYMBOLS 11 Upstream winding base 12 Downstream winding base 13 Winding mechanism 21 Main body member 22 Main body member 23 Connection member 24 Slide member (1st slide member)
25 Slide member (second slide member)
26 Chuck (first chuck)
27 Chuck (second chuck)
28 Motor (first motor)
29 Motor (second motor)
30 motor (third motor)
32 Shaft (first shaft)
34 Shaft (second shaft)
38 Spline shaft 41 Electromagnetic clutch (second clutch)
44 Electromagnetic clutch (first clutch)
100 Film Winding Device 150 Film 151 Core

Claims (1)

A film winding device configured to wind a film around a cylindrical winding core and switch the winding core,
An upstream winding base and a downstream winding base that move horizontally;
A winding mechanism that is detachably attached to the upstream winding base and the downstream winding base, and rotatably supports the winding core;
When winding the film, the film is wound by the winding core of the winding mechanism mounted on the upstream winding base, and
When the winding core is switched, the winding mechanism on which the upstream winding base and the downstream winding base are mounted is handed over to the horizontal direction so that the upstream winding base and the downstream winding base are separated from each other. The winding mechanism which is transferred to the upstream winding base after the winding core being wound is disposed on the downstream side and the new winding core is disposed on the upstream side. Is moved in the vertical direction, the film is cut and wound around the new core of the winding mechanism,
The winding mechanism is
A pair of main body members mounted on the upstream winding base or the downstream winding base and moved in the vertical direction;
A connecting member formed to extend in the axial direction of the core, and connecting the pair of body members;
A first shaft rotatably supported by the connecting member and connected to a first motor;
A second shaft rotatably supported by the connecting member and connected to a second motor via a first clutch;
The first slide is configured to move along the axial direction when the first shaft is rotated by the first motor, and a first chuck that holds one end of the winding core is rotatably provided. Members,
A second slide that is configured to move along the axial direction when the second shaft is rotated by the second motor, and that is rotatably provided with a second chuck that holds the other end of the core. Members,
A spline shaft that is rotatably supported by the first slide member and transmits a driving force output from a third motor to the first chuck;
A second clutch provided between the first shaft and the second shaft,
When the film is wound, the first clutch is released and the second clutch is engaged, and the first motor and the second shaft are rotated by the first motor. A film winding apparatus, wherein the film can be wound while the core held by one chuck and the second chuck is swung in the axial direction.

Images