Winding device

Abstract

To provide a winding device capable of shortening the replacement time of a winding shaft.SOLUTION: A winding device according to the present invention includes a winding mechanism, a discharge mechanism, a product receiving table, and a winding shaft supply mechanism 7. The winding shaft supply mechanism 7 is disposed between a winding bearing position P1 of the winding mechanism and the product receiving table, and includes a main unit 71 that can be raised and lowered. The main unit 71 is provided with a support member 74 that supports a new winding shaft 152 to which a winding core 151 is fitted, and a winding shaft operating section 75 that operates the new winding shaft 152 supported by the support member 74 to hold the winding core 151. The winding device is configured to pre-mount the winding core 151 on the new winding shaft 152 by the winding shaft operation part 75 when the main unit 71 is lowered and evacuated and a sheet is being wound up by the winding mechanism.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a winding device.

Background Art

[0002] Conventionally, a winding device with an exchangeable winding shaft has been known (see, for example, Patent Document 1).

[0003] The winding device of Patent Document 1 includes a winding mechanism that winds a sheet around a core mounted on the winding shaft, a discharge mechanism for discharging the wound roll wound by the winding mechanism, a product receiving base on which the wound roll discharged by the discharge mechanism is placed, and a winding shaft supply unit that supplies a new winding shaft after the wound roll has been discharged by the discharge mechanism.

[0004] In this winding device, after the discharge of the wound roll, a new winding shaft with a core fitted thereto is moved to the winding shaft receiving position, and then the position of the core with respect to the new winding shaft is adjusted at the winding shaft receiving position, and then the core is mounted on the new winding shaft.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] Here, in the above-described conventional winding device, it takes time to replace the winding shaft, and there is room for improvement in this regard.

[0007] The present invention has been made to solve the above problems, and an object of the present invention is to provide a winding device capable of shortening the replacement time of the winding shaft.

Means for Solving the Problems

[0008] The winding device according to the present invention includes a winding mechanism for winding a sheet around a core mounted on a winding shaft, a discharging mechanism for discharging a wound roll wound by the winding mechanism, a product receiving base on which the wound roll discharged by the discharging mechanism is placed, and a winding shaft supply mechanism for supplying a new winding shaft to the winding shaft receiving position of the winding mechanism after the wound roll is discharged by the discharging mechanism. The winding shaft supply mechanism is disposed between the winding shaft receiving position of the winding mechanism and the product receiving base and includes a main body unit that can move up and down. The main body unit is provided with a support member for supporting a new winding shaft fitted with a core, and a winding shaft operating unit for operating the new winding shaft supported by the support member to hold the core. The winding device is configured such that when the main body unit is lowered and retracted and the sheet is being wound by the winding mechanism, the winding shaft operating unit pre-attaches the core to the new winding shaft.

[0009] In the above winding device, the winding shaft supply mechanism may include a guide rail for guiding a new winding shaft, and when the main body unit is raised, the support member delivers the new winding shaft to the guide rail, and the new winding shaft rolls forward on the guide rail so that the new winding shaft is supplied to the winding shaft receiving position.

[0010] In this case, the support member is rotatable and has a lever and a roller provided at the tip of the lever. When the main body unit is raised and the roller abuts against the lower end of the guide rail, the lever is pushed as the main body unit rises and the support member rotates, so that the support member is configured to deliver the new winding shaft to the guide rail.

[0011] In this case, the main body unit may be provided with a stopper for restricting the rotation of the support member, and when the new winding shaft fitted with the core is transferred from the product receiving base to the support member, the rotation of the support member is restricted by the stopper.

[0012] In this case, the main body unit may be provided with a position adjusting member for adjusting the position of the core with respect to the new take-up shaft, and the core may be configured to be attached to the new take-up shaft by the take-up shaft operating unit with the position of the core adjusted by the position adjusting member.

[0013] In the take-up device including the guide rail, the guide rail may have a first guide rail disposed on the product receiving base side and a second guide rail disposed on the take-up shaft receiving position side, and may be configured such that when the sheet is taken up by the take-up mechanism, the first guide rail is retracted outward in the width direction and the second guide rail is retracted downward.

[0014] In the take-up device, the discharge mechanism may include an extrusion roller that extrudes the take-up roll when discharging the take-up roll.

[0015] In the take-up device, the take-up mechanism may include a chuck that rotatably supports a take-up shaft with a core attached thereto, two drums for rotating the take-up shaft, and a press roller that presses the take-up roll against the two drums.

Advantages of the Invention

[0016] According to the take-up device of the present invention, it is possible to shorten the replacement time of the take-up shaft.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0018] Hereinafter, an embodiment of the present invention will be described.

[0019] -Configuration- First, with reference to FIGS. 1 to 3, the configuration of the take-up device 100 according to the present embodiment will be described.

[0020] The take-up device 100 is configured to divide and take up a belt-like sheet 150 fed out from a raw web (not shown). Further, the take-up device 100 is configured to be able to replace a take-up shaft 152 on which a core 151 for taking up the sheet 150 is mounted. The sheet 150 may be made of paper or resin. As shown in FIG. 1, the take-up device 100 includes a take-up mechanism 8, a discharge mechanism 5, a product receiving base 6, and a take-up shaft supply mechanism 7. In FIG. 1, the upstream side is the Y1 direction side and the downstream side is the Y2 direction side.

[0021] [Take-up mechanism] The take-up mechanism 8 is a so-called two-drum winder and includes a slit portion 1, drums 2a and 2b, a chuck 3, a press roller 4, and adjustment mechanisms 30 and 40. The slit portion 1 is provided for continuously making cuts (slits) in the sheet 150 along the conveyance direction to divide it into a plurality of sheets 150a.

[0022] Two drums 2a and 2b are provided for rotating the take-up shaft 152. The take-up shaft 152 is disposed on the drums 2a and 2b and is arranged between the upstream drum 2a and the downstream drum 2b. On the upstream side of the drum 2a, a pinch roller 9b for pressing the sheet 150a against the drum 2a is provided. The sheet 150a that has passed through the slit portion 1 is conveyed between the drum 2a and the pinch roller 9b via the guide roller 9a.

[0023] A plurality of cores 151 are detachably attached to the take-up shaft 152. The take-up shaft 152 is configured to be operated by supplying air to hold the plurality of cores 151. Note that by maintaining the air supplied to the take-up shaft 152, it is possible to keep the state in which the plurality of cores 151 are attached to the take-up shaft 152. The plurality of cores 151 are arranged along the axial direction of the take-up shaft 152 so as to correspond to the divided sheets 150a. Therefore, when the cores 151 are rotated together with the take-up shaft 152, the divided sheets 150a are respectively wound around the cores 151. Then, as the sheet 150a is wound around the core 151, a take-up roll 150b is formed, and the take-up roll 150b is in contact with the drums 2a and 2b.

[0024] The chuck 3 is configured to rotatably support the end of the take-up shaft 152. The chuck 3 is provided on the slide member 31 of the adjustment mechanism 30 and is configured to be movable in the vertical direction. Note that two chucks 3 are provided to support both ends of the take-up shaft 152, respectively, but only one of the pair of chucks 3 is shown in FIG. 1.

[0025] The press roller 4 is disposed above the take-up roll 150b and is provided for pressing the take-up roll 150b against the drums 2a and 2b. The press roller 4 is provided on the slide member 41 of the adjustment mechanism 40 and is configured to be movable in the vertical direction.

[0026] Here, at the contact points between the take-up roll 150b and the drums 2a and 2b, the pressing force by the press roller 4 and the pressing force due to the self-weight of the take-up roll 150b are applied. And since the winding quality changes depending on the contact pressure between the take-up roll 150b and the drums 2a and 2b, the winding device 100 is provided with adjustment mechanisms 30 and 40 to adjust this contact pressure.

[0027] The adjustment mechanism 30 is provided to adjust the pressing force due to the self-weight of the take-up roll 150b. This adjustment mechanism 30 includes a slide member 31, a chain 32, a fixing member 33, pulleys 34a to 34c, and an air cylinder 35. Also, the adjustment mechanism 30 is arranged on the downstream side with respect to the take-up roll 150b. Note that the adjustment mechanism 30 is provided on a pair of side frames (not shown) respectively.

[0028] The slide member 31 is configured to be movable along a guide rail 31a provided on the side frame. The guide rail 31a is formed to extend in the vertical direction, and the slide member 31 is movable in the vertical direction. A chuck 3 is provided on this slide member 31.

[0029] One end of the chain 32 is connected to the slide member 31, and the other end is fixed to the side frame by the fixing member 33. This chain 32 is hung on the pulleys 34a to 34c. The pulleys 34a and 34b are fixed pulleys, and their rotation axes are fixed to the side frame. The pulley 34c is a movable pulley, and its rotation axis is provided on the piston of the air cylinder 35. The air cylinder 35 is provided to move the pulley 34c in the vertical direction.

[0030] In this adjustment mechanism 30, it is possible to adjust the pressing force due to the self-weight of the take-up roll 150b by adjusting the force for pulling up the slide member 31 by the air cylinder 35.

[0031] The adjustment mechanism 40 is provided to adjust the pressing force by the press roller 4. This adjustment mechanism 40 includes a slide member 41, a chain 42, a fixed member 43, pulleys 44a to 44c, and an air cylinder 45. Further, the adjustment mechanism 40 is arranged on the upstream side with respect to the take-up roll 150b. Note that the adjustment mechanism 40 is provided on each of a pair of side frames.

[0032] The slide member 41 is configured to be movable along a guide rail 41a provided on the side frame. The guide rail 41a is formed to extend in the vertical direction, and the slide member 41 is movable in the vertical direction. This slide member 41 is configured to rotatably support the press roller 4.

[0033] One end of the chain 42 is connected to the slide member 41, and the other end is fixed to the side frame by the fixed member 43. This chain 42 is hung on the pulleys 44a to 44c. The pulleys 44a and 44b are fixed pulleys, and the rotation shafts are fixed to the side frame. The pulley 44c is a movable pulley, and the rotation shaft is provided on the piston of the air cylinder 45. The air cylinder 45 is provided to move the pulley 44c in the vertical direction.

[0034] In this adjustment mechanism 40, it is possible to adjust the pressing force by the press roller 4 by adjusting the force for pulling up the slide member 41 by the air cylinder 45.

[0035] [Discharge mechanism] The discharge mechanism 5 is provided to discharge the take-up roll 150b wound by the take-up mechanism 8. This discharge mechanism 5 includes an arm 51, a slider 52, and an extrusion roller 53. Further, the discharge mechanism 5 is arranged on the upstream side with respect to the drums 2a and 2b.

[0036] The extrusion roller 53 is provided to extrude the winding roll 150b when discharging the winding roll 150b. The extrusion roller 53 is rotatably attached to the slider 52 and is disposed on the downstream side of the slider 52. The slider 52 is configured to be movable along the rail 52a. The arm 51 is rotatable and is connected to the slider 52. For this reason, the slider 52 is moved along the rail 52a by the rotation of the arm 51. Note that the arm 51, the slider 52, and the rail 52a are provided in a pair on the left and right so as to face each other with the extrusion roller 53 interposed therebetween.

[0037] [Product receiving base] The product receiving base 6 is disposed on the downstream side with respect to the drums 2a and 2b and is configured such that the winding roll 150b discharged by the discharge mechanism 5 is placed thereon. An inclined surface 10a to 10c (see FIG. 2) is provided between the product receiving base 6 and the drum 2b. In the product receiving base 6, the winding shaft 152 is pulled out from the winding roll 150b, and while the winding roll 150b is discharged, a new core (empty core) 151 is fitted to the winding shaft 152, and the new winding shaft 152 is sent to the winding shaft supply mechanism 7.

[0038] [Winding shaft supply mechanism] The winding shaft supply mechanism 7 is provided to supply a new winding shaft 152 to the winding shaft receiving position P1 (see FIG. 2) of the winding mechanism 8 after the winding roll 150b is discharged by the discharge mechanism 5. The winding shaft supply mechanism 7 is disposed between the winding shaft receiving position P1 of the winding mechanism 8 and the product receiving base 6. The winding shaft receiving position P1 is an upper position between the drums 2a and 2b and is a position where the winding of the sheet 150a by the winding mechanism 8 is started.

[0039] As shown in Fig. 2, the take-up shaft supply mechanism 7 includes a main body unit 71, and guide rails 72 and 73. In the take-up shaft supply mechanism 7, a new take-up shaft 152 supplied from the product receiving base 6 is made to wait at the take-up shaft standby position P2. The take-up shaft standby position P2 is arranged on the downstream side with respect to the take-up shaft receiving position P1, and is arranged below the inclined surfaces 10a to 10c. Note that the guide rails 72 and 73 are respectively an example of the "first guide rail" and the "second guide rail" of the present invention.

[0040] As shown in Fig. 3, the main body unit 71 has a stay 711 extending in the width direction (X direction), and lifting members 712 and side brackets 713 respectively attached to both ends in the width direction of the stay 711. Note that in Fig. 3, one of the pair of lifting members 712 and side brackets 713 is shown.

[0041] An inclined surface 10c is attached to most of the width direction at the upper end of the stay 711. The lifting member 712 is connected to a power source (not shown) and is provided so as to be movable along a guide rail 712a. The guide rail 712a is provided on the side frame and is formed to extend in the vertical direction. For this reason, the main body unit 71 is configured to be liftable. The side bracket 713 is attached to the lower end of the stay 711 and has two plate-like portions extending downward. Further, the main body unit 71 is provided with a support member 74, a take-up shaft operating portion 75, a stopper 76, and a position adjusting member 77.

[0042] The support member 74 is provided to support a new take-up shaft 152 into which a core 151 supplied from the product receiving base 6 is fitted. The support member 74 is provided on each of the pair of side brackets 713. The support member 74 is attached to the side bracket 713 via a rotation shaft 74a and is configured to be rotatable with respect to the side bracket 713.

[0043] As shown in FIG. 2, the support member 74 has a placement portion 74b on which the new take-up shaft 152 is placed. The placement portion 74b is formed to be recessed in an arc shape and is formed to follow the outer peripheral surface of the take-up shaft 152. On the upstream side of the support member 74, a lever 74c extending upward is provided, and a roller 74d is provided at the tip of the lever 74c. Further, a return spring (not shown) is provided on the support member 74, and it is configured to return to the initial position (the position shown in FIG. 2) by the biasing force of the return spring.

[0044] As shown in FIG. 3, the take-up shaft operating portion 75 is provided to adjust the position in the width direction of the new take-up shaft 152 at the take-up shaft standby position P2 and to hold a plurality of cores 151 on the new take-up shaft 152. The take-up shaft operating portion 75 has an air supply portion 751 provided on one of a pair of side brackets 713 and a take-up shaft bearing portion (not shown) provided on the other of the pair of side brackets 713. The air supply portion 751 and the take-up shaft bearing portion are arranged to face each other in the width direction and are arranged to correspond to the new take-up shaft 152 placed on the placement portion 74b. The air supply portion 751 has a socket 751a that can advance and retreat in the width direction. The take-up shaft bearing portion is configured to be able to advance and retreat in the width direction.

[0045] In the take-up shaft operating portion 75, as the take-up shaft bearing portion is moved inward in the width direction and the socket 751a is moved inward in the width direction, the position in the width direction of the new take-up shaft 152 is adjusted, and the socket 751a is fitted into the plug 152a of the new take-up shaft 152. In a state where the socket 751a is fitted into the plug 152a, air is supplied from the air supply portion 751 to the new take-up shaft 152, so that the new take-up shaft 152 is operated and a plurality of cores 151 are held.

[0046] The stopper 76 is provided to restrict the rotation of the support member 74. The stopper 76 is provided on each of the pair of side brackets 713. Specifically, the stopper 76 has a pin 76a that can advance and retract in the width direction, and the support member 74 is configured to be fixed in the initial position by the pin 76a protruding inward in the width direction and engaging with the support member 74.

[0047] The position adjusting member 77 is provided to adjust the position of the core 151 with respect to the new take-up shaft 152 placed on the placement portion 74b. The position adjusting member 77 is provided near both ends of the stay 711, respectively. The position adjusting member 77 has a claw portion 77a, and the claw portion 77a is configured to be rotatable and movable in the axial direction.

[0048] As shown in FIG. 2, the guide rails 72 and 73 are provided to guide the new take-up shaft 152 delivered from the support member 74 to the take-up bearing receiving position P1. The guide rails 72 and 73 are provided as a pair on the left and right so as to face each other in the width direction. The guide rails 72 and 73 are arranged outside the width direction with respect to the drums 2a and 2b, the inclined surfaces 10a to 10c, and the like.

[0049] The guide rail 72 is arranged on the product receiving base 6 side (downstream side), and the guide rail 73 is arranged on the take-up bearing receiving position P1 side (upstream side). The guide rail 72 is connected to a drive unit (not shown), and is configured to be retractable outward in the width direction by the drive unit. The guide rail 73 is connected to the drive unit 73b via the arm 73a, and is configured to be retractable downward by the drive unit 73b.

[0050] -Operation- Next, with reference to FIGS. 1 to 8, the operation of the winding device 100 according to the present embodiment will be described. The winding shaft 152 is rotatably held by the chuck 3, and a plurality of cores 151 are attached to the winding shaft 152. Further, as shown in FIG. 2, the main body unit 71 is retracted downward so that the inclined surface 10c is continuous with the inclined surface 10b. The guide rail 72 is retracted outward in the width direction by a drive unit (not shown), and the guide rail 73 is retracted downward by the drive unit 73b. The support member 74 is fixed to the initial position by the stopper 76.

[0051] First, as shown in FIG. 1, the sheet 150 is fed out from the raw material web (not shown), and the sheet 150 is sent to the slit portion 1. Then, when the sheet 150 passes through the slit portion 1, cuts are continuously made along the conveyance direction of the sheet 150. For this reason, the sheet 150 is divided into a plurality of sheets 150a. The divided sheets 150a are sent between the drum 2a and the pinch roller 9b via the guide roller 9a. Then, the sheet 150a is wound around the winding roll 150b that rotates counterclockwise in FIG. 1.

[0052] Note that the winding roll 150b is formed by winding the sheet 150a around the core 151. The plurality of cores 151 are arranged so as to correspond to the divided sheets 150a, and each of the divided sheets 150a is wound around each core 151. Further, the winding roll 150b is mainly driven by the drums 2a and 2b.

[0053] At this time, the winding roll 150b is pressed toward the drums 2a and 2b by the press roller 4. The pressing force by the press roller 4 is adjusted by the adjustment mechanism 40. Further, as the sheet 150a is wound, the self-weight of the winding roll 150b increases. The pressing force due to the self-weight of the winding roll 150b is adjusted by the adjustment mechanism 30. Thereby, it is possible to appropriately adjust the contact pressure between the winding roll 150b and the drums 2a and 2b. Note that the press roller 4 and the winding shaft 152 are driven as appropriate.

[0054] Here, as shown in FIG. 2, when a new take-up shaft 152 with a plurality of core tubes 151 fitted thereto is transferred from the product receiving base 6 to the support member 74, the new take-up shaft 152 is placed on the placement portion 74b. At this time, the support member 74 is fixed at the initial position by the stopper 76, and even if an impact occurs when the new take-up shaft 152 is transferred to the support member 74, the support member 74 is prevented from rotating.

[0055] Next, the socket 751a (see FIG. 3) of the air supply unit 751 is moved inward in the width direction, and the take-up bearing portion (not shown) is moved inward in the width direction. For this reason, the new take-up shaft 152 supported by the support member 74 is clamped by the socket 751a and the take-up bearing portion, so that the position of the new take-up shaft 152 in the width direction is adjusted. Further, the claw portions 77a of the pair of position adjusting members 77 are rotated and abutted against the outer peripheral surface of the new take-up shaft 152. Then, the pair of claw portions 77a are moved inward in the width direction, and the plurality of core tubes 151 are clamped by the pair of claw portions 77a, so that the positions of the plurality of core tubes 151 with respect to the new take-up shaft 152 are adjusted.

[0056] Also, the socket 751a is fitted to the plug 152a (see FIG. 3) of the new take-up shaft 152, and air is supplied from the air supply unit 751 to the new take-up shaft 152. Thereby, the new take-up shaft 152 is operated and the plurality of core tubes 151 are held. That is, when the sheet 150a is being wound by the winding mechanism 8, the plurality of core tubes 151 are pre-mounted on the new take-up shaft 152 at the take-up shaft standby position P2. That is, before the replacement of the take-up shaft 152 is started, the plurality of core tubes 151 are mounted on the new take-up shaft 152. Thereafter, the socket 751a is moved outward in the width direction to release the fitting with the plug 152a.

[0057] Then, as shown in FIG. 4, as the winding diameter of the take-up roll 150b increases, the chuck 3 is moved upward by the adjustment mechanism 30, and the press roller 4 is moved upward by the adjustment mechanism 40. Specifically, the pulley 34c is pulled down by the air cylinder 35, so that the slide member 31 and the chuck 3 are moved upward, and the pulley 44c is pulled down by the air cylinder 45, so that the slide member 41 and the press roller 4 are moved upward. At this time, the adjustment mechanisms 30 and 40 adjust so that the contact pressure between the take-up roll 150b and the drums 2a and 2b becomes appropriate.

[0058] And when the take-up roll 150b is wound up and the take-up shaft 152 is replaced, the winding of the sheet 150a is temporarily stopped. Thereafter, the press roller 4 is moved upward so as to be separated from the take-up roll 150b. Also, the holding of the take-up shaft 152 by the chuck 3 is released.

[0059] Next, as shown in FIG. 5, when the arm 51 of the discharge mechanism 5 is rotated, the slider 52 is moved downstream along the rail 52a. For this reason, the take-up roll 150b is pushed downstream by the extrusion roller 53, so that the take-up roll 150b rolls downstream on the inclined surfaces 10a to 10c. As a result, the take-up roll 150b is placed on the product receiving base 6, and the sheet 150a is cut by a cutting device (not shown). The cutting end on the downstream side of the sheet 150a is wound up by the rotation of the take-up roll 150b on the product receiving base 6. Also, the chuck 3 is moved downward and arranged at the take-up bearing receiving position P1.

[0060] Next, as shown in FIG. 6, the guide rail 72 is advanced inward in the width direction by the drive unit, and the guide rail 73 is advanced upward by the drive unit 73b. For this reason, the guide rails 72 and 73 can guide the new take-up shaft 152. Also, the fixing of the support member 74 by the stopper 76 is released.

[0061] Then, as shown in FIG. 7, the main body unit 71 is raised, and at this time, the roller 74d abuts against the lower end portion of the guide rail 72. For this reason, as the main body unit 71 is raised, the lever 74c is pushed, and the support member 74 is rotated about the rotation shaft 74a. As a result, the new take-up shaft 152 rolls down from the placement portion 74b and is delivered to the guide rail 72. The new take-up shaft 152 rolls forward upstream on the guide rails 72 and 73 and is supplied to the take-up bearing receiving position P1. Thereafter, as shown in FIG. 8, the main body unit 71 is lowered and retracted, and the support member 74 is returned to the initial position by a return spring (not shown). Then, the support member 74 is fixed to the initial position by the stopper 76. Further, the guide rail 72 is retracted outward in the width direction by the drive unit, and the guide rail 73 is retracted downward by the drive unit 73b.

[0062] Then, the new take-up shaft 152 at the take-up bearing receiving position P1 is held by the chuck 3, and the upstream cutting end of the sheet 150a is wound around the core 151 of the new take-up shaft 152. Then, the press roller 4 is moved downward, and the new take-up roll 150b is pressed against the drums 2a and 2b by the press roller 4, and the winding of the sheet 150a is restarted.

[0063] In the product receiving base 6, the take-up shaft 152 is pulled out from the placed take-up roll 150b, and the take-up roll 150b is discharged. A new core 151 is fitted to the take-up shaft 152, and the new take-up shaft 152 is sent to the take-up shaft supply mechanism 7.

[0064] -Effect- In the present embodiment, as described above, before the replacement of the take-up shaft 152 is started, a plurality of cores 151 are pre-mounted on the new take-up shaft 152 at the take-up shaft standby position P2, so that the replacement time of the take-up shaft 152 can be shortened compared with the case where the core is mounted after the replacement of the take-up shaft is started. Therefore, productivity can be improved.

[0065] In addition, in the present embodiment, by arranging the take-up shaft receiving position P1 near the take-up shaft standby position P2, the conveyance path length of the new take-up shaft 152 conveyed from the take-up shaft standby position P2 to the take-up shaft receiving position P1 can be shortened, and thus the replacement time of the take-up shaft 152 can also be shortened.

[0066] In addition, in the present embodiment, since the lever 74c and the roller 74d are provided on the support member 74 and the support member 74 is rotated when the main body unit 71 is raised, the device configuration can be simplified and the manufacturing cost can be reduced as compared with the case where a dedicated power source for rotating the support member is provided.

[0067] In addition, in the present embodiment, by providing the stopper 76, even if an impact occurs when a new take-up shaft 152 is transferred to the support member 74, the support member 74 can be prevented from moving.

[0068] In addition, in the present embodiment, by retracting the guide rail 72 outward in the width direction by the drive unit, the guide rail 72 can be prevented from interfering during winding of the sheet 150a or discharging of the winding roll 150b. When replacing the take-up shaft 152, the guide rail 72 advances outward in the width direction, enabling the guide rail 72 to guide the new take-up shaft 152.

[0069] In addition, in the present embodiment, by retracting the guide rail 73 downward by the drive unit 73b, the guide rail 73 can be prevented from interfering during winding of the sheet 150a or discharging of the winding roll 150b. When replacing the take-up shaft 152, the guide rail 73 advances upward, enabling the guide rail 73 to guide the new take-up shaft 152.

[0070] In addition, in the present embodiment, the widthwise position of the new take-up shaft 152 can be adjusted by the take-up shaft operating unit 75, and the widthwise positions of the plurality of cores 151 can be adjusted by the position adjusting member 77.

[0071] In addition, in the present embodiment, since the extrusion roller 53 is provided in the discharge mechanism 5, the take-up roll 150b can be smoothly extruded.

[0072] - Other Embodiments - It should be noted that the embodiments disclosed this time are illustrative in all respects and do not serve as a basis for restrictive 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 in the claims. Further, the technical scope of the present invention includes all changes within the meaning and scope equivalent to the claims.

[0073] For example, in the present embodiment, an example in which the slit portion 1 is provided is shown, but the present invention is not limited to this, and the slit portion may not be provided.

[0074] Also, in the present embodiment, an example in which the winding mechanism 8 is a two-drum winder is shown, but the present invention is not limited to this, and the winding mechanism may be of any type.

Explanation of Reference Numerals

[0075] 2a, 2b drums 3 chuck 4 press roller 5 discharge mechanism 6 product receiving table 7 take-up shaft supply mechanism 8 winding mechanism 53 extrusion roller 71 main body unit 72 guide rail (first guide rail) 73 guide rail (second guide rail) 74 support member 74c lever 74d roller 75 take-up shaft operating portion 76 stopper 77 position adjusting member 100 winding device 150a sheet 150b take-up roll 151 Core 152 Take-up shaft

Claims

1. A winding device comprising a winding mechanism for winding a sheet around a core mounted on a winding shaft, a discharging mechanism for discharging a wound roll wound by the winding mechanism, a product receiving base on which the wound roll discharged by the discharging mechanism is placed, and a winding shaft supply mechanism for supplying a new winding shaft to the winding shaft receiving position of the winding mechanism after the wound roll has been discharged by the discharging mechanism, wherein the winding shaft supply mechanism is disposed between the winding shaft receiving position of the winding mechanism and the product receiving base and includes a main body unit that can move up and down, the main body unit is provided with a support member for supporting a new winding shaft with a core fitted thereto, and a winding shaft operating unit for operating the new winding shaft supported by the support member to hold the core, and the winding shaft operating unit is configured to pre-fit the core to the new winding shaft when the main body unit is lowered and retracted and the sheet is being wound by the winding mechanism.

2. In the winding device according to claim 1, the winding shaft supply mechanism includes a guide rail for guiding a new winding shaft, and when the main body unit is raised, the support member delivers the new winding shaft to the guide rail, and the new winding shaft rolls forward on the guide rail so that the new winding shaft is supplied to the winding shaft receiving position.

3. In the winding device according to claim 2, the support member is rotatable and has a lever and a roller provided at the tip of the lever, and when the main body unit is raised and the roller abuts against the lower end of the guide rail, the lever is pushed as the main body unit rises and the support member is rotated, so that the support member is configured to deliver the new winding shaft to the guide rail.

4. In the winding device according to claim 3, the main body unit is provided with a stopper for restricting the rotation of the support member, and the rotation of the support member is restricted by the stopper when a new winding shaft with a core fitted thereto is transferred from the product receiving base to the support member.

5. In the winding device according to claim 4, The main body unit is provided with a position adjusting member for adjusting the position of the core with respect to the new take-up shaft. A take-up device, characterized in that, with the position of the core adjusted by the position adjusting member, the core is configured to be mounted on a new take-up shaft by the take-up shaft operating portion. **Claim 6** In the take-up device according to any one of Claims 2 to 5, the guide rail has a first guide rail disposed on the product receiving base side and a second guide rail disposed on the take-up shaft receiving position side. A take-up device, characterized in that, when the sheet is being taken up by the take-up mechanism, the first guide rail is retracted outward in the width direction and the second guide rail is retracted downward. **Claim 7** In the take-up device according to any one of Claims 1 to 5, the discharging mechanism includes an extrusion roller for extruding the take-up roll when discharging the take-up roll, which is a feature of the take-up device. **Claim 8** In the take-up device according to any one of Claims 1 to 5, the take-up mechanism includes a chuck that rotatably supports a take-up shaft on which a core is mounted, two drums for rotating the take-up shaft, and a press roller for pressing the take-up roll against the two drums, which is a feature of the take-up device.

Images