JP6140324B1 - Sheet winding device - Google Patents

Abstract

There is provided a sheet winding device capable of cutting a sheet and replacing a core even if the sheet is other than paper. A sheet winding device 100 separates a winding roll 151 from a driving drum 2 when replacing the winding core 160, and at the time of replacement of the winding core 151 with a transfer roller 5 that rotates the winding roll 151. The new core 160 is moved to the winding position P1 to bring the new core 160 into contact with the drive drum 2 via the sheet 150, and the new core 160 is placed at the winding position P1. When arranged, the sheet winding portion 8 includes a cut winding portion 8 that cuts the sheet 150 and winds the sheet 150 around a new core 160. The cutting and winding unit 8 includes a rotary cutter and a receiving roller, and is configured to cut the sheet 150 by moving the rotary cutter and the receiving roller in the width direction of the sheet 150. [Selection] Figure 6

Description

  The present invention relates to a sheet winding device.

  2. Description of the Related Art Conventionally, there has been known a sheet winding apparatus in which a winding roll is brought into contact with a driving drum to rotate the winding roll to wind a sheet (see, for example, Patent Document 1).

  In the sheet winding device of Patent Document 1, when the winding core is replaced, the winding roll is separated from the drive drum, and a new winding core is disposed at the winding position where the winding roll was located. Then, by decelerating the take-up roll, the sheet sent to the take-up roll emerges from between the drive drum and the new roll core, and the lifted portion is caught between the drive drum and the new roll core. By cutting, the sheet is cut. That is, the sheet is cut by generating a high tension. In this manner, the core for winding the sheet is replaced. This sheet is paper.

Japanese Unexamined Patent Publication No. 7-251984

  However, in the above-described conventional sheet winding device, since the sheet is paper, it is possible to lift the sheet and cut it by biting. For example, if the sheet is a material that is difficult to cut, such as a nonwoven fabric, It is difficult to cut the sheet and replace the core. That is, it is difficult to apply the above-described conventional technique depending on the material of the sheet.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to take up a sheet that can cut the sheet and replace the core even if the sheet is other than paper. Is to provide a device.

A sheet winding apparatus according to the present invention includes a driving drum that rotates a winding core that winds a sheet, a pressing member that contacts a driving roll formed by winding a sheet on the winding core, and the winding core. at the exchange, along with separating the winding roll from the drive drum, a transfer roller which rotates the take-up roll, when the winding roll is spaced from the drive drum by the transfer roller, the winding position a new winding core When the new core is placed at the winding position, the sheet is cut to form a new core. A cutting winding portion for winding. The cutting and winding unit includes a rotary cutter and a receiving roller that receives the rotary cutter, and is configured to cut the sheet by moving the rotary cutter and the receiving roller in the width direction of the sheet. The new winding core at the winding position is wound with a sheet from the driving drum toward the winding roll, and the rotation center of the new winding core at the winding position rotates the winding roll with respect to the rotation center of the driving drum. It is arrange | positioned on the opposite side to the transfer roller side to make.

  By comprising in this way, even if a sheet | seat is a nonwoven fabric etc., for example, a sheet | seat can be cut | disconnected with a rotary cutter and can be wound around the new winding core of a winding position. Therefore, even if the sheet is other than paper, the core can be exchanged by cutting the sheet.

  In the sheet winding device, preferably, the cutting and winding unit is configured to drive and rotate the receiving roller when the rotary cutter and the receiving roller are moved in the width direction of the sheet.

  In the sheet winding device, preferably, the cut winding unit includes a pressing roller that presses the sheet against a new core at the winding position.

  In the sheet winding apparatus, preferably, the cutting and winding unit includes an air discharge unit that blows air onto a sheet that is cut by a rotary cutter.

  In the above-described sheet winding device, the cut winding unit preferably includes a charging unit that charges a sheet wound around a new winding core at a winding position.

  According to the sheet winding apparatus of the present invention, even if the sheet is other than paper, the sheet can be cut and the core can be replaced.

It is the figure which showed schematic structure of the sheet winding apparatus by one Embodiment of this invention. It is the figure which showed the cutting part of the cutting winding part of the sheet | seat winding apparatus of FIG. It is the figure which showed the state which the winding diameter increased in the sheet | seat winding apparatus of FIG. FIG. 4 is a view showing a state where a take-up roll is moved downstream by a transfer roller in the sheet take-up device of FIG. 3. FIG. 5 is a view showing a state where a new winding core is arranged at a winding position in the sheet winding device of FIG. 4. FIG. 6 is a diagram illustrating a state when a sheet is cut in the sheet winding device of FIG. 5. It is the figure which showed the state by which the winding roll was discharged | emitted by the conveyance vehicle in the sheet | seat winding apparatus of FIG. It is the figure which showed the state in which the new winding core was mounted in the guide rail in the sheet | seat winding apparatus of FIG.

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

−Configuration−
First, the configuration of the sheet winding device 100 according to the present embodiment will be described with reference to FIGS. 1, 2, and 6. The sheet winding apparatus 100 is a so-called drum winder that rotates the winding roll 151 to cause the sheet 150 to be wound by bringing the winding roll 151 into contact with the driving drum 2. The winding roll 151 is formed by winding the sheet 150 around the winding core 160, and the diameter (winding diameter) increases as the sheet 150 is wound.

  The sheet 150 is a belt-like sheet made of, for example, a non-woven fabric, and is supplied to the sheet winding device 100 from an upstream film forming line (not shown). In FIG. 1, the upstream side is the Y1 direction side, and the downstream side is the Y2 direction side.

  As shown in FIG. 1, the sheet winding device 100 includes a guide roller 1, a drive drum 2, a guide rail 3, a pressing arm 4, a transfer roller 5, a core supply unit 6, and a core transport unit. 7, a cutting and winding part 8, and a transport vehicle 9.

  A plurality of guide rollers 1 are provided along the conveyance direction of the sheet 150. The guide roller 1 has a function of guiding the sheet 150 supplied from the upstream film forming line between the driving drum 2 and the winding core 160 (winding roll 151).

  The drive drum 2 is provided to rotate the winding core 160 that winds up the sheet 150, and is configured to be able to rotate. The drive drum 2 is configured such that the winding roll 151 is brought into contact with the driving drum 2 and the winding roll 151 is rotated by friction. Specifically, the drive drum 2 rotates the winding roll 151 clockwise by rotating counterclockwise in FIG.

  The guide rail 3 is configured to support both ends of the core 160 in the axial direction. This guide rail 3 is formed so as to extend in the horizontal direction (Y1 and Y2 directions), and is configured to support a winding core 160 that moves downstream as the diameter of the winding roll 151 increases. Further, the guide rail 3 is provided with a tilting portion 31 on the downstream side and a tilting portion 32 on the upstream side. Note that bearings (not shown) are provided at both ends of the core 160, and the core 160 is supported so as to be rotatable with respect to the guide rail 3.

  The pressing arm 4 is configured to press the core 160 supported by the guide rail 3 to the upstream side. That is, the pressing arm 4 is provided in order to bring the winding roll 151 into contact with the drive drum 2. The pressing arm 4 is provided so as to be rotatable, and has a tip abutting against both ends of the core 160. Since the pressing arm 4 contacts the bearing of the winding core 160, the winding core 160 is rotatable with respect to the pressing arm 4. The pressing arm 4 is an example of the “pressing member” in the present invention.

  As shown in FIG. 6, the transfer roller 5 is provided to separate the winding roll 151 from the drive drum 2 and to rotate the winding roll 151 when the winding core 160 is replaced. The transfer roller 5 is provided at the tip of the arm 51 so as to be driven to rotate, and the arm 51 is provided so as to be rotatable. Then, the transfer roller 5 is rotated by the arm 51 when the winding core 160 is replaced, thereby contacting the winding roll 151 and moving the winding roll 151 to the downstream side against the pressing force of the pressing arm 4. It is configured to move. When the transfer roller 5 comes into contact with the take-up roll 151, the transfer roller 5 is driven to rotate, and the take-up roll 151 that is separated from the drive drum 2 is rotated.

  The core supply unit 6 is provided to supply a new core 160 to the core transport unit 7. The core supply unit 6 includes a magazine 61, a slide member 62, and a lift arm 63.

  A plurality of new cores 160 are stored in the magazine 61. The magazine 61 is arranged in a region that does not overlap the winding roll 151 in the axial direction of the winding roll 151. For example, the magazine 61 is disposed on the back side of the take-up roll 151 with respect to the paper surface of FIG. The magazine 61 is provided with a stopper 61a, and the new core 160 is fed out to the slide member 62 one by one by rotating the stopper 61a.

  The slide member 62 is provided to transport the new winding core 160 fed out from the magazine 61 to the lift arm 63. The slide member 62 is configured to move the new core 160 in the axial direction (for example, the front side in the direction perpendicular to the paper surface of FIG. 1).

  The lift arm 63 is disposed below the drive drum 2 and is provided to deliver a new core 160 to the core transport unit 7. The lift arm 63 is configured to lift the new core 160 conveyed by the slide member 62.

  The core transport unit 7 is provided to move the new core 160 to the winding position P1 when the core 160 is replaced. The core conveyance unit 7 includes a first arm 71 that is turnably provided and a second arm 72 that is turnably provided at the tip of the first arm 71. The rotation center of the first arm 71 coincides with the rotation center of the drive drum 2. At the tip of the second arm 72, a chuck 72a (see FIG. 1) that rotatably holds a new core 160 is provided. The second arm 72 is configured to press a new core 160 against the drive drum 2 via the sheet 150. Note that the rotation center of the new winding core 160 at the winding position P <b> 1 is arranged upstream of the rotation center of the drive drum 2.

  The cut winding unit 8 is provided to cut the sheet 150 and wind the cut sheet 150 around the new core 160 at the winding position P1 when the core 160 is replaced. The cutting and winding unit 8 includes an arm 81, a cutting unit 82, a pressing roller 83, an air discharge unit 84, and a charging unit 85.

  The arm 81 is configured to be rotatable, and is provided with a cutting part 82, a pressing roller 83, an air discharge part 84, and a charging part 85.

  As shown in FIG. 2, the cutting unit 82 includes a rotary cutter (rotating round blade) 821 and a receiving roller 822, and moves the rotary cutter 821 and the receiving roller 822 in the width direction (X direction) of the sheet 150. 150 is configured to be cut. The rotary cutter 821 and the receiving roller 822 are held by the holder 823 in a contact state. That is, the receiving roller 822 is configured to receive the blade of the rotary cutter 821. The outer periphery of the receiving roller 822 is made of, for example, a material used for a so-called cutting mat.

  The holder 823 is provided so as to be movable in the width direction of the sheet 150. The holder 823 is engaged with the guide rail 824 and is connected to the belt 825. The belt 825 is wound around the output shaft of the motor 826 and is configured to be driven by the motor 826.

  A rack 827 is provided along the moving direction of the holder 823, and a pinion 828 that meshes with the rack 827 is provided in the holder 823. In FIG. 2, the illustration of teeth formed on the rack 827 and the pinion 828 is omitted for easy viewing. A belt 829 is wound around the pulley of the pinion 828 and the pulley of the receiving roller 822. Therefore, when the holder 823 moves, the pinion 828 is rotated, and the rotation of the pinion 828 is transmitted to the receiving roller 822 via the belt 829. Since the rotary cutter 821 is rotatably supported by the holder 823, the rotary cutter 821 is rotated when the receiving roller 822 is driven.

  As shown in FIG. 6, the pressing roller 83 is provided to press the sheet 150 against the new core 160 at the winding position P <b> 1 when the core 160 is replaced. The pressing roller 83 is rotatably provided on the arm 83 a, and the arm 83 a is rotatably provided on the arm 81.

  The air discharge unit 84 blows air onto the sheet 150 to be cut when the sheet 150 is cut by the cutting unit 82, so that the cut end (the cut end on the upstream side in the flow direction of the sheet 150) is at the winding position P <b> 1. It is provided for winding around a new core 160. A pair of air discharge portions 84 are provided so as to sandwich the cutting portion 82.

  The charging unit 85 is provided so that the cut end of the sheet 150 is easily attracted to the new core 160 at the winding position P1 by charging the sheet 150 when the core 160 is replaced.

  The transport vehicle 9 is provided to discharge the wound take-up roll 151. The transport vehicle 9 is provided so as to be movable in the horizontal direction.

-Operation-
Next, with reference to FIGS. 1-8, operation | movement of the sheet winding apparatus 100 by this embodiment is demonstrated.

  First, as shown in FIG. 1, the core 160 around which the sheet 150 is wound is supported by the guide rail 3, and the core 160 is pressed by the pressing arm 4 toward the drive drum 2 (upstream side). The guide rail 3 and the pressing arm 4 are in contact with the winding core 160 via bearings (not shown), and the winding core 160 is rotatable with respect to the guide rail 3 and the pressing arm 4. When the driving drum 2 is rotated in this state, the winding core 160 that is in contact with the driving drum 2 via the sheet 150 is rotated by friction, and thus is supplied from the upstream film forming line via the guide roller 1. The sheet 150 is wound around the core 160.

  When the diameter of the take-up roll 151 increases as the sheet 150 is taken up, the winding core 160 supported by the guide rail 3 is moved downstream together with the tip of the pressing arm 4 as shown in FIG.

  In the core supply unit 6, a new core 160 is fed from the magazine 61 to the slide member 62. The new winding core 160 is moved in the axial direction by the slide member 62 and conveyed to the lift arm 63. Thereafter, when the lift arm 63 is rotated, the new core 160 is lifted and supplied to the core transport unit 7. In the core transport unit 7, a new core 160 is rotatably held by the chuck 72 a of the second arm 72. At this time, the new core 160 is disposed below the driving drum 2 and is separated from the driving drum 2. Thereafter, the lift arm 63 is rotated downward.

  When the replacement of the winding core 160 is started, the transfer roller 5 is driven and rotated, and the arm 51 of the transfer roller 5 is rotated in the R1 direction, thereby, as shown in FIG. Is brought into contact with the take-up roll 151, and the take-up roll 151 is moved downstream along the guide rail 3. For this reason, the take-up roll 151 is separated from the drive drum 2, but the take-up roll 151 is rotated by the transfer roller 5. Further, the tilting portion 32 of the guide rail 3 is tilted.

  Thereafter, in the core conveyance unit 7, the first arm 71 is rotated in the R2 direction and the second arm 72 is rotated toward the drive drum 2, whereby a new core is obtained as shown in FIG. 160 is moved to the winding position P1. At this time, the new winding core 160 is rotated by the driving drum 2 because it is brought into contact with the driving drum 2 via the sheet 150.

  Further, a sheet 150 from the drive drum 2 toward the take-up roll 151 is wound around the new core 160 at the winding position P1, and the rotation center of the new core 160 at the winding position P1 is the center of the drive drum 2. Arranged upstream of the center of rotation. For this reason, the angle range in which the sheet 150 contacts the new core 160 is 180 degrees or more. Note that the tilting portion 32 that has been retracted from the conveyance path of the new core 160 is returned to the original position.

  In the cut and wound portion 8, the arm 81 is rotated in the R3 direction, so that the cut portion 82 is located near the sheet 150 fed out from the new core 160 at the winding position P1, as shown in FIG. Be placed. Note that the holder 823 (see FIG. 2) of the cutting portion 82 is disposed outward in the width direction of the sheet 150. Further, a rotary cutter 821 (see FIG. 2) is disposed below the sheet 150 fed out from the new core 160, and a receiving roller 822 (see FIG. 2) is disposed above.

  Then, when the arm 83 a of the pressing roller 83 is rotated toward the new core 160, the pressing roller 83 is brought into contact with the new core 160 through the sheet 150. Further, a charging unit 85 is disposed in the vicinity of the new core 160 at the winding position P1, and the sheet 150 wound around the new core 160 is charged by the charging unit 85. In addition, air discharge portions 84 are arranged on the upstream side and the downstream side in the flow direction of the sheet 150 with respect to the portion where the holder 823 travels when the sheet 150 is cut.

  Next, in the cutting portion 82, the belt 825 (see FIG. 2) is driven by the motor 826 (see FIG. 2), so that the holder 823 moves in the width direction of the sheet 150. At this time, as the holder 823 moves, the pinion 828 (see FIG. 2) that meshes with the rack 827 (see FIG. 2) is rotated. Therefore, the rotation of the pinion 828 is transmitted to the receiving roller 822 via the belt 829 (see FIG. 2), and the receiving roller 822 is driven to rotate. Accordingly, the rotary cutter 821 is rotated by the receiving roller 822. That is, the receiving roller 822 and the rotary cutter 821 move in the width direction of the sheet 150 while the rotary cutter 821 is rotated. As a result, the sheet 150 is sandwiched between the receiving roller 822 and the rotary cutter 821 and cut.

  Further, air is blown from the air discharge unit 84 to the sheet 150 to be cut, and the cut end of the sheet 150 (the upstream cut end in the flow direction of the sheet 150) is the new core 160 at the winding position P1. And the drive drum 2, and the sheet 150 is wound around the new core 160. Note that the other of the cut ends (the cut end on the downstream side in the flow direction of the sheet 150) is wound up by the winding roll 151.

  After that, as shown in FIG. 7, the tip end of the pressing arm 4 is rotated downstream, and the take-up roll 151 is discharged to the transport vehicle 9 by tilting the tilting portion 31 of the guide rail 3. In addition, the cutting and winding unit 8 is returned to the original position, and the transfer roller 5 is returned to the original position. The transport vehicle 9 supports the core 160 and is moved downstream.

  Then, as shown in FIG. 8, the new core 160 is placed on the guide rail 3 by rotating the first arm 71 of the core transport unit 7. Thereafter, when the pressing arm 4 is rotated, the new winding core 160 is pressed toward the driving drum 2 by the pressing arm 4. The new core 160 is pressed to the drive drum 2 side by the second arm 72 of the core transport unit 7 until the new core 160 is pressed to the drive drum 2 side by the pressing arm 4. Thereafter, the holding of the new core 160 by the chuck 72a (see FIG. 1) of the second arm 72 is released, and the first arm 71 is returned to the original position.

  By repeating the above operation, the sheet 150 is continuously wound while the winding core 160 is replaced. That is, it is possible to replace the winding core 160 without interrupting the winding of the sheet 150.

-Effect-
In the present embodiment, as described above, the driving drum 2 that rotates the winding core 160, the pressing arm 4 that makes the winding roll 151 contact the driving drum 2, and the winding roll 151 are driven when the winding core 160 is replaced. The new winding core 160 is moved to the winding position P1 by moving the new winding core 160 to the winding position P1 at the time of replacement of the winding roller 160 and the transfer roller 5 that is separated from the drum 2 and rotates the winding roll 151. The core transporting section 7 for bringing the core 160 into contact with the driving drum 2 and the cutting winding section 8 for cutting the sheet 150 and winding it on the new core 160 when the new core 160 is disposed at the winding position P1. With. The cutting and winding unit 8 includes a rotary cutter 821 and a receiving roller 822, and is configured to cut the sheet 150 by moving the rotary cutter 821 and the receiving roller 822 in the width direction of the sheet 150. By comprising in this way, even if the sheet | seat 150 is a nonwoven fabric, the sheet | seat 150 can be cut | disconnected with the rotary cutter 821, and it can wind around the new core 160 of the winding position P1. Therefore, even if the sheet 150 is other than paper, the core 150 can be replaced by cutting the sheet 150. As a result, in the sheet winding apparatus 100 that is a so-called drum winder, the winding core 160 can be replaced without interrupting the winding of the sheet 150.

  In the present embodiment, the sheet 150 from the drive drum 2 toward the take-up roll 151 is wound around the new core 160 at the winding position P1, and the rotation center of the new core 160 at the winding position P1 is driven. Since the angular range in which the sheet 150 comes into contact with the new core 160 can be widened by being arranged upstream of the rotation center of the drum 2, the cut sheet 150 and the new core 160 are driven. It is possible to facilitate feeding between the drum 2 and the drum 2.

  In this embodiment, the sheet 150 can be more easily cut by rotating the receiving roller 822 and rotating the rotary cutter 821 by the receiving roller 822.

  In this embodiment, a pinion 828 that meshes with the rack 827 and rotates by the movement of the holder 823 is provided, and the receiving roller 822 and the pinion 828 are connected via the belt 829, so that the holder 823 moves. The receiving roller 822 can be driven to rotate.

  In this embodiment, by providing the pressing roller 83 that presses the sheet 150 to the new core 160 at the winding position P1, the sheet 150 to be cut by the rotary cutter 821 can be held and stabilized. Cutting performance can be improved.

  Further, in the present embodiment, by providing the air discharge unit 84 that blows air to the sheet 150 that is cut by the rotary cutter 821, the cut sheet 150 can be easily fed between the new core 160 and the drive drum 2. be able to.

  In the present embodiment, by providing the charging unit 85 that charges the sheet 150 wound around the new core 160 at the winding position P <b> 1, the cut sheet 150 can be easily attracted to the new core 160. Can do.

-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 this embodiment, although the sheet | seat 150 showed the example which is a nonwoven fabric, not only this but a sheet | seat may be sufficient as resin.

  Further, in this embodiment, the surface speed of the receiving roller 822 that rotates and the moving speed of the holder 823 that moves in the width direction of the sheet 150 may be the same, or the surface speed of the receiving roller 822 that rotates and rotates. However, it may be larger than the moving speed of the holder 823 that moves in the width direction of the sheet 150.

2 Drive drum 4 Press arm (pressing member)
DESCRIPTION OF SYMBOLS 5 Transfer roller 7 Winding core conveyance part 8 Cutting winding part 83 Press roller 84 Air discharge part 85 Charging part 100 Sheet winding device 150 Sheet 151 Winding roll 160 Winding roll 821 Rotary cutter 822 Receiving roller

Claims (5)

A drive drum that rotates a winding core for winding the sheet;
A sheet winding device including a pressing member that contacts a winding roll formed by winding the sheet on a winding core with the driving drum,
A transfer roller for rotating the take-up roll while separating the take-up roll from the drive drum at the time of replacing the winding core;
When the take-up roll is separated from the drive drum by the transfer roller , the new roll core is moved to the winding position to bring the new roll core into contact with the drive drum via the sheet. A transport section;
When a new winding core is disposed at the winding position, a cutting winding unit for cutting the sheet and winding it on the new winding core,
The cutting and winding unit includes a rotary cutter and a receiving roller that receives the rotary cutter, and is configured to cut the sheet by moving the rotary cutter and the receiving roller in the width direction of the sheet ,
On the new winding core at the winding position, a sheet from the driving drum toward the winding roll is wound,
The sheet winding is characterized in that the rotation center of the new winding core at the winding position is arranged on the side opposite to the transfer roller side that rotates the winding roll with respect to the rotation center of the drive drum . Taking device. In the sheet winding apparatus according to claim 1 ,
The sheet winding apparatus, wherein the cutting and winding unit is configured to drive and rotate the receiving roller when the rotary cutter and the receiving roller are moved in the width direction of the sheet. In the sheet winding device according to claim 1 or 2 ,
The sheet winding apparatus, wherein the cut winding unit includes a pressing roller that presses the sheet against a new core at the winding position. In the sheet winding device according to any one of claims 1 to 3 ,
The sheet winding apparatus, wherein the cutting and winding unit includes an air discharge unit that blows air onto a sheet cut by the rotary cutter. In the sheet winding apparatus according to any one of claims 1 to 4 ,
The sheet winding apparatus, wherein the cut winding unit includes a charging unit that charges a sheet wound around a new core at the winding position.

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