Web winding device

Abstract

To provide a web winding device which prevents a web from being damaged when it is pressed against an empty winding shaft and increases speed followability when the web starts to be wound on the empty winding shaft.SOLUTION: A rotating plate driving unit 56 performs an upper shaft replacement start operation, and a web W conveyed from a first metal roll 50 at an upper indirect guide position A is pressed against an empty first shaft 22 at a winding position by a rubber roll 48 at a pressable position using a pressing portion 44, and an upper cutting device 72 cuts the web W conveyed from the empty first shaft 22 at the winding position to a full second shaft 24 at a removal position, and after cutting, when the web W starts to be wound on the empty first shaft 22 at the winding position, a pressing state of the rubber roll 48 against the first shaft 22 is released using the pressing portion 44, and the rotating plate driving unit 56 performs an upper shaft replacement end operation, causes the rubber roll 48 to wait at a first standby position, and the web W is directly guided to the first shaft 22 at the winding position by the first metal roll 50 at an upper direct guiding position.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a winding device for winding up a long web such as a film, a metal foil, a fabric, or a paper. [Background technology]

[0002] Conventionally, a winding device has been proposed for winding a web onto a reel after coating with a coating liquid and heat treatment have been completed. This winding device has two reel, each of which rotates to wind the web. When one reel is fully wound with the web, the arm revolves 180° from the winding position to the removal position, and the empty reel, on which the web is not wound, revolves to the winding position, and the web is rewound onto the empty reel. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-95406 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the winding device described above, in order to start winding the web onto the empty reel, a pressure roll is required to press the web onto the empty reel. When the web to be wound is a film or the like, a rubber roll must be used as this pressure roll to prevent damage to the web. Since this rubber roll is heavier than a metal roll such as an aluminum roll, the rubber roll has poor speed tracking when starting the operation after the web cutting operation is completed, which causes a problem of damage to the web.

[0005] In view of the above problems, the present invention has an object to provide a web winding device that does not damage the web when it is pressed against an empty reel, and that improves speed tracking when the web begins to be wound around the empty reel. [Means for solving the problem]

[0006] The present invention includes two reel shafts that are disposed on an orbit about an axis of revolution and revolve between a winding position and an unwinding position and rotate about their axes to wind up a web in an upwind or downwind manner, a first metal roll that guides the web to the reel shaft at the winding position during upwinding, a rubber roll that waits at a first waiting position near the winding position during upwinding, an upper cutting means that cuts the web that is transported from the empty reel shaft at the winding position to the full reel shaft at the unwinding position during upwinding, and a cutting means that cuts the web that is transported from the empty reel shaft at the winding position to the full reel shaft at the unwinding position during upwinding, and a cutting means that cuts the web that is transported from the empty reel shaft at the winding position to the full reel shaft at the unwinding position during upwinding. and (2) an upper shaft replacement start operation for moving the first metal roll to an upper indirect guide position where the first metal roll is indirectly guided to the winding shaft at the winding position via a rubber roll, and at the same time, moving the rubber roll from the first standby position to a pressable position where the web can be pressed against the winding shaft at the winding position; and (3) an upper shaft replacement end operation for moving the first metal roll from the upper indirect guide position to the upper direct guide position, and at the same time, moving the rubber roll from the pressable position to the first standby position; a pressing means for pressing the rubber roll at the pressable position against the winding shaft at the winding position; and a control means. The rubber roll is heavier than the first metal roll,When the winding shaft at the winding position becomes full during first winding, the control means revolves the full winding shaft to the removal position and revolves the empty winding shaft to the winding position, performs the upper shaft replacement start operation by the roll changing means, presses the web conveyed from the first metal roll at the upper indirect guide position against the empty winding shaft at the winding position by the rubber roll at the pressing position using the pressing means, and transfers the full winding shaft at the removal position from the empty winding shaft at the winding position. the web being transported to the reel is cut by the upper cutting means, and when the web begins to be wound around the empty reel at the winding position after the cutting, the pressing means is used to release the rubber roll from pressing the reel, the roll changing means performs the upper reel replacement start operation, the rubber roll is made to wait at the first standby position, and the first metal roll at the upper direct guide position directly guides the web to the reel at the winding position. Effect of the Invention

[0007] According to the present invention, when starting to wind a web around an empty reel, the rubber roll presses the web, and when winding begins, the rubber roll retracts to the first standby position and the first metal roll guides the web to the reel, improving speed tracking. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is an overall side view of the winding device during the upper winding operation. [Diagram 2] FIG. 2 is an enlarged view of a main portion of a state in which a rubber roll is pressed against an empty winding shaft during first winding. [Diagram 3] FIG. 1 is an enlarged view of a main portion of the web as it begins to be wound around a reel during first winding. [Figure 4] FIG. 4 is a side view of the winding device during a lower winding operation. [Diagram 5] FIG. 4 is an enlarged view of a main portion of the state in which the rubber roll is pressed against an empty winding shaft during lower winding. [Figure 6] FIG. 13 is an enlarged view of a main portion of the web when the web starts to be wound around the reel during the lower winding stage. [Figure 7] FIG. 2 is an enlarged explanatory diagram of a wagon and a sub-wagon. [Figure 8] FIG. 2 is a block diagram of a winding device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] A winding device 1 for a web W according to one embodiment of the present invention will be described below with reference to Figures 1 to 8. The web W is a long film, metal foil, paper, fabric, or the like.

[0010] The winding device 1 winds the web W around a reel, and as shown in Fig. 1 and Fig. 4, is composed of two devices: a winding section 2 and a guide section 3. Each will be described in order below. In the drawings, the left side of the paper is the front and the right side is the rear. The web W is transported from the rear to the front, with the rear being the downstream side and the front being the upstream side.

[0011] (1) Winding section 2 First, the winding unit 2 will be described with reference to Figures 1, 4, and 8. The winding unit 2 is a device that winds the web W around a reel, and has a pair of left and right winding support tables 12 standing on the upper surface of a base 10.

[0012] The revolution shaft 14 is rotatably hung horizontally above the pair of left and right winding support bases 12. As shown in Fig. 8, the revolution shaft 14 is rotated at a predetermined speed in a clockwise or counterclockwise direction by a revolution part 28 driven by a motor.

[0013] A pair of left and right first arms 16, 16 protrude from both left and right ends of the revolution shaft 14. A winding shaft (hereinafter referred to as the "first shaft") 22 for the web W is rotatably suspended between the tips of the pair of left and right first arms 16, 16. As shown in FIG. 7, the first shaft 22 rotates at a predetermined speed in a clockwise or counterclockwise direction by a first rotating unit 30 driven by a motor. As shown in FIG. 2 and FIG. 5, a double-sided adhesive tape 68 is affixed along the axial direction to the surfaces of the empty first shaft 22 and second shaft 24, so that the tip of the web W can be affixed thereto.

[0014] A pair of left and right second arms 18, 18 protrude from both left and right ends of the revolution shaft 14 in directions 180° opposite from the first arms 16, 16. A winding shaft (hereinafter referred to as the "second shaft") 24 for the web W is rotatably suspended between the tips of the pair of left and right second arms 18, 18. As shown in Fig. 8, the second shaft 24 rotates at a predetermined speed in a clockwise or counterclockwise direction by a second rotating part 32 driven by a motor.

[0015] Two pairs of left and right auxiliary arms 201, 202 protrude at 90° intervals between the first arm 16 and the second arm 18 at both left and right ends of the revolution shaft 14. Guide rolls 261, 262 are respectively stretched across the two pairs of left and right auxiliary arms 201, 202. Here, the guide rolls are denoted as 261 and 262 in the counterclockwise direction from the first shaft 22. The guide rolls 261, 262 are driven.

[0016] The revolving unit 28 revolves the first shaft 22, the second shaft 24, and the two guide rolls 261, 262 on a revolution trajectory around the revolution axis 14.

[0017] When the winding unit 2 winds up the web W, the revolving unit 28 fixes the first arm 16 and the second arm 18 in a horizontal state, and the shaft on the winding side (for example, the first shaft 22) is rotated by the first rotating unit 30 to wind up the web W. The first arm 16 and the second arm 18 are in a horizontal state, and in Fig. 1, the first shaft 22 is in a "winding position" for the web W, and the second shaft 24 is in a replacement position for the winding shaft (hereinafter referred to as the "removal position").

[0018] (2) Information section 3 Next, the guide section 3 will be described with reference to Figures 1, 4 and 7. A guide support stand 34 is provided in an upright position behind the winding section 2 on the upper surface of the base 10 of the winding device.

[0019] Two main rails 38 are provided on the side surfaces of the guide support base 34 in parallel and horizontal orientation.

[0020] A wagon 36 is arranged so as to be movable horizontally on two horizontally arranged main rails 38. As shown in Fig. 7, the wagon 36 is moved at a predetermined speed by a wagon moving unit 40 driven by a linear motor.

[0021] A sub-wagon 42 is arranged so as to be horizontally movable on the side of the wagon 36. As shown in Fig. 7, the sub-wagon 42 is moved horizontally by a pressing part 44 made of an air cylinder.

[0022] The sub wagon 42 is provided with a rotating plate 46 that can rotate freely along a vertical plane around a horizontal rotating shaft 54. The rubber roll 48, the first metal roll 50, and the second metal roll 52 are attached to the rotating plate 46 at the corners of an equilateral triangle centered on the horizontal rotating shaft 54. That is, they are arranged at intervals of 120° around the rotating shaft 54, and are arranged in an equilateral triangle when viewed from the side. The rubber roll 48, the first metal roll 50, and the second metal roll 52 are driven, and the axis of each roll is horizontal. In addition, in order to easily express the rubber roll 48, the first metal roll 50, and the second metal roll 52 in Figs. 2, 3, and 5 to 7, the rubber roll 48 is indicated with "G", the first metal roll 50 is indicated with "1", and the second metal roll 52 is indicated with "2".

[0023] The rotating plate 46 is rotated in a clockwise or counterclockwise direction by 120° at a time by a rotating plate driving unit 56 made up of a rotary actuator.

[0024] A first transport roll 58 is provided on the side of the wagon 36 behind the sub-wagon 42, and a second transport roll 60 is provided on the side of the wagon 36 behind (downstream of) the first transport roll 58. The first transport roll 58 and the second transport roll 60 move together with the movement of the wagon 36.

[0025] The wagon moving section 40 moves the wagon 36 in the front-rear direction on the main rails 38, and when the wagon 36 is moved to the frontmost position, the rubber roll 48, the first metal roll 50, or the second metal roll 52 moves to a position closest to the reel at the winding position. When the web W is wound around the reel and the winding diameter increases, the wagon 36 moves backward accordingly, and when the web W is fully wound around the reel, the wagon 36 moves to the rearmost position.

[0026] When the rubber roll 48 is in a position facing the empty reel, the pressing section 44 presses the rubber roll 48 against the empty reel.

[0027] A third transport roll 62 and a fourth transport roll 64 are provided on the upper part of the guide support base 34. The third transport roll 62 is a dancer roll.

[0028] The web W is transported into the guide section 3 from the outside, passes through the fourth transport roll 64, the third transport roll 62, the second transport roll 60, and the first transport roll 58, and reaches the first metal roll 50 or the second metal roll 52 in the sub-wagon 42.

[0029] The upper cutting arm 74 of the upper cutting device 72 is rotatably mounted on the guide support base 34 located above the wagon 36, centered on a rotation axis 80. An upper guide roll 81 for guiding the web W to the reel at the removal position, and an upper pressure roll 79 for pressing the web W against the reel at the winding position are provided under the tip of the upper cutting arm 74. An upper cutter 76 is provided between the upper guide roll 81 and the upper pressure roll 79. When the upper cutter 76 cuts the web W, an upper cutter operating unit 78 rotates the upper cutting arm 74 downward from the standby position, and the upper cutter 76 cuts the web W.

[0030] A lower cutting arm 84 of the lower cutting device 82 is rotatably mounted on the guide support base 34 located below the wagon 36, centered on a rotation axis 90. A lower guide roll 91 for guiding the web W to the reel at the removal position, and a lower pressure roll 89 for pressing the web W against the reel at the winding position are provided at the upper part of the tip of the lower cutting arm 84. A lower cutter 86 is provided between the lower guide roll 91 and the lower pressure roll 89. When the lower cutter 86 cuts the web W, a lower cutter operating unit 88 rotates the lower cutting arm 84 downward from the standby position, and the lower cutter 86 cuts the web W.

[0031] (3) Electrical configuration of the winding device 1 Next, the electrical configuration of the winding device 1 will be described with reference to the block diagram of FIG.

[0032] A control unit 4 of the winding device 1 is provided on the base 10. This control unit 4 is formed by a computer, and has the revolving unit 28, the first rotating unit 30, the second rotating unit 32, the wagon moving unit 40, the pressing unit 44, the rotating plate driving unit 56, the upper cutter operating unit 78, and the lower cutter operating unit 88 connected thereto.

[0033] In addition, an application for an automatic changeover function is stored in the control unit 4. The control unit 4 moves the revolving unit 28, the first rotating unit 30, the second rotating unit 32, the rotating plate driving unit 56, the wagon moving unit 40, the pressing unit 44, the upper cutter operating unit 78, and the lower cutter operating unit 88 according to this application and the transport speed V of the web W, to perform a splicing operation to change a full reel for an empty reel.

[0034] (4) Explanation of terms The terms used in this specification will be explained below.

[0035] "Top winding" refers to a winding method in which the first shaft 22 or the second shaft 24 is rotated counterclockwise in FIG. 1 to wind the web W from the top.

[0036] "Bottom winding" refers to a winding method in which the first shaft 22 or the second shaft 24 is rotated clockwise in FIG. 4 to wind the web W from the bottom.

[0037] "Rotation" refers to the rotation of the first shaft 22 and the second shaft 24.

[0038] The term "revolution" refers to the rotation of first arm 16 and second arm 18 around revolution axis 14.

[0039] The “revolutionary orbit” refers to a path traveled by the center of the first shaft 22 of the first arm 16 and the center of the second shaft 24 of the second arm 18 .

[0040] The rotating plate driving unit 56 rotates the rotating plate 46 by 120° to realize the following four patterns.

[0041] In the first pattern, during upper winding, as shown in FIG. 2, the rubber roll 48 is positioned facing the empty reel (this position is called the "pressible position"), the first metal roll 50 is positioned below (this position is called the "upper indirect guide position"), and the second metal roll 52 is positioned above.

[0042] In the second pattern, during upper winding, as shown in Fig. 3, the first metal roll 50 is disposed near the winding shaft (this position is called the "upper direct guide position"), the second metal roll 52 is disposed horizontally behind it, and the rubber roll 48 is disposed above the first metal roll 50 and the second metal roll 52 (this position is called the "first standby position"). The operation of shifting from the second pattern to the first pattern is called the "upper shaft replacement start operation", and the operation of shifting from the first pattern to the second pattern is called the "upper shaft replacement end operation".

[0043] In the third pattern, during bottom winding, as shown in FIG. 5, the rubber roll 48 is positioned facing the empty reel (this position is called the "pressible position"), the first metal roll 50 is positioned below, and the second metal roll 52 is positioned above (this position is called the "lower indirect guide position").

[0044] In the fourth pattern, during lower winding, as shown in Fig. 6, the second metal roll 52 is disposed near the winding shaft (this position is called the "lower direct guide position"), the first metal roll 50 is disposed horizontally behind it, and the rubber roll 48 is disposed below the second metal roll 52 and the first metal roll 50 (this position is called the "second standby position"). The operation of shifting from the fourth pattern to the third pattern is called the "lower shaft replacement start operation", and the operation of shifting from the third pattern to the fourth pattern is called the "lower shaft replacement end operation".

[0045] (5) In the case of top winding Next, a process of replacing the winding shaft in the first winding in the winding device 1 will be described with reference to Figs. 1 to 3. Before replacing the winding shaft, the web W passes over the left peripheral surface of the fourth transport roll 64 and the right peripheral surface of the third transport roll 62, and as shown in Fig. 3, passes over the lower peripheral surface of the second transport roll 60 and the lower peripheral surface of the first transport roll 58, passes over the lower peripheral surface of the second metal roll 52 and the lower peripheral surface of the first metal roll 50, and is wound in the first winding mode around the second shaft 24 rotating in the counterclockwise direction at the winding position. At this time, the wagon 36 moves backward according to the winding diameter of the second shaft 24. The sub wagon 42 is located at the very rear of the wagon 36.

[0046] In the first step of replacing the reel, when the second shaft 24 becomes full, it revolves counterclockwise from the winding position to the removal position, and the empty first shaft 22 moves to the winding position instead. At this time, as shown in FIG. 2, the wagon moving unit 40 moves the wagon 36 to the frontmost position, and the rotating plate driving unit 56 rotates the rotating plate 46 in a clockwise direction to perform the upper shaft replacement start operation, disposing the first metal roll 50 and the second metal roll 52 in a substantially vertical direction, moving the first metal roll 50 to the first indirect guide position, and making the rubber roll 48 face the vicinity of the empty first shaft 22, which is the pressing position. The web W conveyed from the lower peripheral surface of the first conveying roll 58 passes over the lower peripheral surface of the first metal roll 50 and the lower peripheral surface of the rubber roll 48, and is wound in an upper winding state on the empty first shaft 22. The second metal roll 52 rotates to a position out of the conveying path of the web W. As shown in FIG. 1, the web W that has passed through the rubber roll 48 passes through a guide roll 261 and is then wound in an upper winding manner around the second shaft 24 that is fully wound.

[0047] In the second step, the pressing unit 44 moves the sub-wagon 42 to the empty first shaft 22 rotating in the counterclockwise direction, moves the rubber roll 48 located in a pressing position, and presses the web W against the surface of the first shaft 22 with the rubber roll 48.

[0048] In the third step, as shown in FIG. 1, the upper cutting arm 74 is rotated from the standby position by the upper cutter operating part 78 of the upper cutting device 72, and the web W pressed against the right peripheral surface of the first shaft 22 by the rubber roll 48 is further pressed against the upper peripheral surface of the first shaft 22 by the upper pressure roll 79 and guided to the guide roll 261 by the upper guide roll 81.

[0049] 1, when the double-sided adhesive tape 68 on the surface of the first shaft 22 rotates to the pressing position of the rubber roll 48, the web W is fixed to the first shaft 22, and at this timing the web W is cut by the upper cutter 76. The starting end of the web W cut by the upper cutter 76 starts to wind around the first shaft 22, and the ending end of the cut web W is taken up onto the fully wound second shaft 24. In addition, the upper cutting arm 74 is returned to the standby position by the upper cutter operating part 78.

[0050] In the fifth step, as shown in Fig. 3, when the web W starts to be wound around the first shaft 22, the pressing state of the rubber roll 48 by the pressing unit 44 is released and the rubber roll 48 is moved to a pressing position, and the wagon 36 is moved to a predetermined position by the wagon moving unit 40. Then, the rotating plate 46 is rotated clockwise by the rotating plate driving unit 56 to complete the upper shaft replacement operation, and the rubber roll 48 is removed from the conveying path of the web W and moved to the first waiting position, so that the web W guided from the lower peripheral surface of the first conveying roll 58 passes through the lower peripheral surface of the second metal roll 52 and the lower peripheral surface of the first metal roll 50 at the upper direct guiding position, and is wound in an upper winding state around the first shaft 22. At this time, the first metal roll 50 is not in contact with the first shaft 22.

[0051] In the sixth step, as the web W is wound around the first shaft 22 and the winding diameter increases, the wagon 36 is moved rearward by the wagon moving section 40. When the first shaft 22 is fully wound, the process returns to the step described in the first step above.

[0052] (6) In the case of lower winding Next, a process of replacing the winding shaft in the winding device 1 during underwinding will be described with reference to Figs. 4 to 6. Before replacing the winding shaft, the web W passes over the left peripheral surface of the fourth transport roll 64 and the right peripheral surface of the third transport roll 62, and as shown in Fig. 6, passes over the upper peripheral surface of the second transport roll 60 and the lower peripheral surface of the first transport roll 58, passes over the upper peripheral surface of the first metal roll 50, and passes over the upper peripheral surface of the second metal roll 52, and is wound underwind around the second shaft 24 rotating in a clockwise direction at the winding position. At this time, the wagon 36 moves backward according to the winding diameter of the second shaft 24. The sub wagon 42 is located at the very rear of the wagon 36.

[0053] In the first step of replacing the reel, when the second shaft 24 becomes full, it revolves clockwise from the winding position to the removal position, and the empty first shaft 22 moves to the winding position instead. At this time, as shown in FIG. 5, the wagon moving unit 40 moves the wagon 36 to the frontmost position, and the rotating plate driving unit 56 rotates the rotating plate 46 counterclockwise to perform the lower shaft replacement start operation, disposing the first metal roll 50 and the second metal roll 52 in a substantially vertical direction, moving the second metal roll 52 to the second indirect guide position, and facing the vicinity of the empty first shaft 22, which is the pressing position. The web W conveyed from the lower peripheral surface of the first conveying roll 58 passes over the upper peripheral surface of the second metal roll 52 and the upper peripheral surface of the rubber roll 48, and is wound lower around the empty first shaft 22. The first metal roll 50 rotates to a position out of the conveying path of the web W. As shown in FIG. 4, the web W that has passed through the rubber roll 48 passes through a guide roll 262 and is then wound in a lower direction around the second shaft 24 that is fully wound.

[0054] In the second step, the pressing unit 44 moves the sub-wagon 42 to the empty first shaft 22 rotating in a clockwise direction, moves the rubber roll 48 located in a pressing position, and presses the web W against the surface of the first shaft 22 with the rubber roll 48.

[0055] In the third step, as shown in FIG. 4, the lower cutting arm 84 is rotated from the standby position by the lower cutter operating part 88 of the lower cutting device 82, and the web W pressed against the right peripheral surface of the first shaft 22 by the rubber roll 48 is further pressed against the lower peripheral surface of the first shaft 22 by the lower pressure roll 89 and is guided to the guide roll 262 by the lower guide roll 91.

[0056] 4, when the double-sided adhesive tape 68 on the surface of the first shaft 22 rotates to the pressing position of the rubber roll 48, the web W is fixed to the first shaft 22, and at this timing the web W is cut by the lower cutter 86. The starting end of the web W cut by the lower cutter 86 starts to wind around the first shaft 22, and the ending end of the cut web W is taken up onto the fully wound second shaft 24. In addition, the lower cutting arm 84 is returned to the standby position by the lower cutter operating unit 88.

[0057] In the fifth step, as shown in Fig. 6, when the web W starts to be wound around the first shaft 22, the pressing state of the rubber roll 48 by the pressing unit 44 is released and moved to a pressing position, and the wagon 36 is moved to a predetermined position by the wagon moving unit 40. Then, the rotating plate 46 is rotated counterclockwise by the rotating plate driving unit 56 to complete the lower shaft replacement operation, and the rubber roll 48 is removed from the conveying path of the web W and moved to the second waiting position, so that the web W guided from the lower peripheral surface of the first conveying roll 58 passes through the upper peripheral surface of the first metal roll 50 and the upper peripheral surface of the second metal roll 52 located at the lower direct guide position, and is wound around the first shaft 22 in a lower winding state. At this time, the second metal roll 52 is not in contact with the first shaft 22.

[0058] In a sixth step, as the web W is wound around the first shaft 22 and the winding diameter increases, the wagon 36 is moved rearward by the wagon moving section 40. When the first shaft 22 is fully wound, the process described in the first step above is repeated.

[0059] (7) Effects According to this embodiment, whether the web W is wound on the top or bottom, the web W is pressed against the empty reel by the rubber roll 48, so that the web W can be pressed without being damaged.

[0060] In addition, when the reel starts to wind the web W, the rubber roll 48 moves out of the transport path of the web W, and the web W is wound around the reel via the first metal roll 50 and the second metal roll 52. Therefore, the speed follow-up is good when the speed is increased after the reel replacement is completed.

[0061] Furthermore, by controlling the rotation direction of the rotary plate 46, switching between the rubber roll 48, the first metal roll 50, and the second metal roll 52 can be easily performed whether the roll is on the top or bottom.

[0062] During upper winding, the web W is transported from the lower peripheral surface of the second metal roll 52 to the visual peripheral surface of the first metal roll 50, and during lower winding, the web W is transported from the upper peripheral surface of the first metal roll 50 to the upper peripheral surface of the second metal roll 52, so that the web W can be transported smoothly without being damaged. At this time, the rubber roll 48 is out of the transport path of the web W, so the web W does not come into contact with the rubber roll 48.

[0063] (8) Example of changes In the above embodiment, a winding device 1 that performs both top winding and bottom winding has been described. However, for a winding device 1 that performs only top winding, only the rubber roll 48 and the first metal roll 50 need to be attached to the rotating plate 46.

[0064] Conversely, when only the lower winding is required, only the rubber roll 48 and the second metal roll 52 need to be attached to the rotary plate 46.

[0065] In the above embodiment, the timing of moving each device was determined by the application of the automatic reconnection function stored in the control unit 4, but the present invention is not limited to this. Detection sensors may be provided in the wagon moving unit 40, the pressing unit 44, the upper cutting device 72, the lower cutting device 82, etc., and the devices may be operated in accordance with the timing of detection by these detection sensors.

[0066] Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0067] Reference Signs List 1 winding device, 2 winding section, 3 guide section, 4 control section, 22 first shaft, 24 second shaft, 36 wagon, 42 sub wagon, 46 rotating plate, 48 rubber roll, 50 first metal roll, 52 second metal roll, 56 rotating plate drive section

Claims

1. Two winding shafts are disposed on an orbit around a revolution axis, and revolve between a winding position and a removal position and rotate about their axes to wind up the web in an upwind or downwind manner; a first metal roll for guiding the web to the winding shaft at the winding position during first winding; a rubber roll that waits at a first waiting position near the winding position during the first winding; an upper cutting means for cutting the web conveyed from the empty reel at the winding position to the full reel at the unwinding position during upper winding; During upper winding, a roll changing means performs: (1) an upper shaft replacement start operation for moving the first metal roll from an upper direct guide position where the web is directly guided to the winding shaft at the winding position to an upper indirect guide position where the web is indirectly guided to the winding shaft at the winding position via the rubber roll, and simultaneously moving the rubber roll from the first standby position to a pressable position where the web can be pressed against the winding shaft at the winding position; and (2) an upper shaft replacement end operation for moving the first metal roll from the upper indirect guide position to the upper direct guide position, and simultaneously moving the rubber roll from the pressable position to the first standby position. a pressing means for pressing the rubber roll at the pressing position against the winding shaft at the winding position; A control means; having the rubber roll is heavier than the first metal roll, when the winding shaft at the winding position becomes full during first winding, the control means revolves the full winding shaft to the removal position and revolves the empty winding shaft to the winding position, The roll changing means performs the upper shaft replacement start operation, and the web conveyed from the first metal roll at the upper indirect guide position is pressed against the empty reel at the winding position by the rubber roll at the pressing position using the pressing means; The web being transported from the empty reel at the winding position to the full reel at the unwinding position is cut by the upper cutting means; when the web starts to be wound around the empty reel at the winding position after the cutting, the pressing means is used to release the rubber roll from pressing the reel; the roll changing means performs the upper shaft replacement completion operation, the rubber roll is made to wait at the first waiting position, and the web is directly guided to the winding shaft at the winding position by the first metal roll at the upper direct guiding position; A web winding device comprising:

2. a second metal roll for guiding the web to the winding shaft at the winding position during the lower winding; a bottom cutting means for cutting the web being transported from the empty reel at the winding position to the full reel at the unwinding position during bottom winding, The rubber roll is heavier than the second metal roll, During the lower winding, the rubber roll is made to wait at a second waiting position different from the first waiting position; The roll changing means is (1) a lower shaft replacement start operation is performed in which the second metal roll is moved from a lower direct guide position where the web is directly guided to the winding shaft at the winding position to a lower indirect guide position where the web is indirectly guided to the winding shaft at the winding position via the rubber roll, and at the same time, the rubber roll is moved from the second standby position to the pressable position where the web can be pressed against the winding shaft at the winding position; and (2) a lower shaft replacement end operation is performed in which the second metal roll is moved from the lower indirect guide position to the lower direct guide position, and at the same time, the rubber roll is moved from the pressable position to the second standby position. The control means When the winding shaft at the winding position becomes full during the lower winding, the full winding shaft is revolved to the removal position, and the empty winding shaft is revolved to the winding position; The roll changing means performs the lower shaft replacement start operation, and the web conveyed from the second metal roll at the lower indirect guide position is pressed against the empty reel at the winding position by the rubber roll at the pressing position using the pressing means; The web being transported from the empty reel at the winding position to the full reel at the unwinding position is cut by the lower cutting means; when the web starts to be wound around the empty reel at the winding position after the cutting, the pressing means is used to release the rubber roll from pressing the reel; the lower shaft replacement completion operation is performed by the roll changing means, the rubber roll is made to wait at the second waiting position, and the web is directly guided to the winding shaft at the winding position by the second metal roll at the lower direct guiding position.

2. The web winding device according to claim 1.

3. The roll changing means is A rotating plate; A roll rotating means for rotating the rotating plate around a horizontal rotation axis; having The rubber roll, the first metal roll, and the second metal roll are arranged on the rotating plate in a triangular shape around the rotation shaft in a side view, When the rotary plate is rotated by a first angle by the roll rotating means from a state in which the rubber roll is disposed at the pressable position and the first metal roll is disposed at the upper indirect guide position, the rubber roll rotates to the first standby position and the first metal roll rotates to the upper direct guide position, When the rotary plate is rotated by a second angle by the roll rotating means from a state in which the rubber roll is disposed at the pressable position and the second metal roll is disposed at the lower indirect guide position, the rubber roll rotates to the second standby position and the second metal roll rotates to the lower direct guide position.

3. The web winding device according to claim 2.

4. When the rotary plate is returned by a first angle by the roll rotating means from a state in which the rubber roll is disposed at the first standby position and the first metal roll is disposed at the upper direct guide position, the rubber roll rotates to the pressable position and the first metal roll rotates to the upper indirect guide position, When the rotary plate is returned by a second angle by the roll rotating means from a state in which the rubber roll is disposed at the second standby position and the second metal roll is disposed at the lower direct guide position, the rubber roll rotates to the pressable position and the second metal roll rotates to the lower indirect guide position.

4. The web winding device according to claim 3.

5. When the rubber roll is at the first standby position, the web is guided from the second metal roll to the first metal roll at the upper direct guide position, When the rubber roll is at the second standby position, the web is guided from the first metal roll to the second metal roll at the lower direct guiding position.

5. The web winding device according to claim 4.

6. The rubber roll, the first metal roll, and the second metal roll are arranged on the rotating plate at intervals of 120° around the rotation axis in a side view, the first angle is 120°; The second angle is 120°.

4. The web winding device according to claim 3.

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