Film winding device and film winding method

Abstract

The present invention provides a film winding device and film winding method that have a relatively small number of parts and a relatively simple structure, while still being able to stably maintain the quality of the winding roll. [Solution] The film winding device comprises a rotatable turret plate, a first winding machine and a second winding machine that are movable in a direction along the radial direction with respect to the center of the turret, and a touch roller unit equipped with roller guide rails that guide the movement of the first and second touch rollers. The radial movement position of the first winding machine is adjusted so that the outer surface of the first touch roller contacts the outer surface of the winding roll during winding, and the radial movement position of the first touch roller is adjusted when rewinding. The radial movement position of the second winding machine, which moves toward the winding start position by the rotation of the turret plate, is adjusted so that the outer surface of the winding core of the second winding machine contacts the outer surface of the second touch roller.

Description

Technical Field

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

Background Art

[0002] Conventionally, as a device for winding a film supplied from a previous process around a core, a film winding device that winds the film around a plurality of cores in order while replacing the core without stopping the supply of the film is known. As typical forms of this type of device, a turret-type film winding device (see, for example, Patent Document 1) and a rotation-type film winding device (see, for example, Patent Document 2) are known.

[0003] [[ID=1,6]]The turret-type film winding device includes a turret plate that supports cores so that they can be replaced at each position having an angular interval of 180° in the circumferential direction (positions facing each other across the turret center). After winding a predetermined amount of film around the core located on the upstream side in the film supply direction, the turret plate is rotated 180°, and the winding roll formed by winding the film around the core is moved to the downstream side in the film supply direction. At the same time, the core located on the downstream side (so-called empty core) is moved to the upstream side. Then, the film between the cores is cut, and winding of the film around the core moved to the upstream side is started.

[0004] On the other hand, a rotation-type film winding device comprises an upstream winding base and a downstream winding base that are movable horizontally, and winding arms that are detachably attached to each of these winding bases and support the winding core. The device winds the film onto the winding core supported by the winding arm attached to the upstream winding base, and moves the upstream winding base downstream in accordance with the amount of film wound onto the winding core, so as to maintain contact between the touch roller and the outer surface of the winding roll. After winding a predetermined amount of film onto the winding core, the winding arms are passed between the upstream and downstream winding bases. In other words, the winding arm supporting the winding roll is moved from the upstream winding base to the downstream winding base, and the winding arm that was attached to the downstream winding base is moved to the upstream winding base. Then, the film between the winding cores is cut, and winding of the film onto the winding core supported by the winding arm that has moved to the upstream winding base is started. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2023-7179 [Patent Document 2] Japanese Patent Publication No. 2017-81709 [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] Incidentally, both the turret-type and rotation-type film winding devices mentioned above use a touch roller to contact the outer surface of the winding roll while the film is being wound onto the core, ensuring that the film is wound stably.

[0007] However, with turret-type film winding devices, the film is cut after the winding roll separates from the touch roller during rewinding (when the turret plate rotates), and then the end of the film is wound onto the winding roll. As a result, it is sometimes difficult to stably wind the end of the film, making it challenging to maintain consistent quality of the winding roll.

[0008] In contrast, a rotation-type film winding device is equipped with a touch roller corresponding to each winding arm. Even when the winding arm supporting the winding roll is moved from the upstream winding base to the downstream winding base, the touch roller remains in contact with the outer surface of the winding roll. This allows for film cutting and winding of the end of the film onto the winding roll while the touch roller remains in contact with the outer surface of the winding roll. This has the advantage of being able to stably maintain the quality of the winding roll.

[0009] However, rotation-type film winding devices require two winding bases, two winding arms, a mechanism to move each winding base horizontally, and a mechanism to attach and detach each winding arm to each winding base, resulting in a large number of parts, structural complexity, and high manufacturing costs. In contrast, the aforementioned turret-type film winding device has the advantage of having fewer parts compared to the rotation-type film winding device.

[0010] Thus, both turret-type and rotation-type film winding devices have their own advantages and disadvantages. To date, a film winding device that combines the advantages of both types—the turret-type (relatively few parts and relatively simple structure) and the rotation-type (the ability to stably maintain the quality of the winding rolls)—has not been realized.

[0011] The present invention has been made in view of the above, and its objective is to provide a film winding device and a film winding method implemented by the film winding device that can stably maintain the quality of the winding roll, while having a relatively small number of parts and a relatively simple structure. [Means for solving the problem]

[0012] The present invention provides a solution for achieving the above objective, which is based on a film winding device that sequentially winds film onto multiple cores while replacing the cores. This film winding device includes a turret plate that is rotatable around the center of the turret, a winding unit having at least a first winding machine and a second winding machine, which are arranged at multiple locations on the turret plate in a direction along the radial direction with respect to the center of the turret and are movable in the direction along the radial direction, and each of them supports the cores in a replaceable manner, and a first touch roller corresponding to the first winding machine and a second touch roller corresponding to the second winding machine, The winding core, supported by the first winding machine at a predetermined winding start position, is supplied via a conveyor roller. The system includes a touch roller unit equipped with roller guide means for causing the first touch roller to follow the movement of the first winding machine that is winding the film. The aforementionedThe first winding machine is configured to adjust its radial movement position so that the outer surface of the first touch roller contacts the outer surface of the winding roll formed by the film being wound onto the winding core, in accordance with the amount of film wound onto the winding core supported by the first winding machine when winding the film from the winding start position. Furthermore, the first touch roller's movement position on the roller guide means is adjusted so that the outer surface of the first touch roller contacts the outer surface of the winding roll, in accordance with the movement position of the first winding machine when replacing the winding core on which the film is wound. In addition, the radial movement position of the second winding machine, which moves toward the winding start position due to the rotation of the turret plate, is adjusted so that at least when the second winding machine reaches the winding start position, the outer surface of the winding core supported by the second winding machine contacts the outer surface of the second touch roller. Furthermore, the roller guide means is composed of an annular guide rail that guides the movement of the first touch roller and the second touch roller, and the guide rail has a first guide portion that guides the movement of the first touch roller between a position where the outer surface of the first touch roller contacts the outer surface of the winding core supported by the first winding machine at the winding start position and a position where the outer surface of the first touch roller contacts the outer surface of the winding roll when the first winding machine has moved to a position where the rotation center of the winding roll supported by the first winding machine coincides with the turret center, and the extending direction of the first guide portion is parallel to the direction of movement of the first winding machine when winding the film, and at the start of rotation of the turret plate during rewinding The movement position of the first winding machine is set to a position where the rotation center of the winding roll supported by the first winding machine coincides with the center of the turret. The second touch roller is guided by the first guide and moves in a direction parallel to the direction of movement of the first touch roller when the first winding machine moves toward the position where the rotation center of the winding roll coincides with the center of the turret. At the time the movement position of the first winding machine is set to a position where the rotation center of the winding roll coincides with the center of the turret, and before the turret plate starts to rotate, the second touch roller, which has moved in a direction parallel to the direction of movement of the first touch roller and along the span of the film between the conveyor roller and the first touch roller, is configured to support the span from below. It is characterized by the following:

[0013] Due to this specific condition, at the start of winding the film onto the core, the first winding machine begins winding at a predetermined winding start position. Then, the position of the first winding machine in the radial direction relative to the turret center is adjusted according to the amount of film wound onto the core, so that the outer surface of the first touch roller is in contact with the outer surface of the winding roll. Furthermore, during rewinding, the position of the first touch roller is adjusted according to the position of the first winding machine, so that the outer surface of the first touch roller continues to be in contact with the outer surface of the winding roll. When the turret plate rotates, the radial position of the second winding machine moving toward the winding start position is adjusted so that at least when the second winding machine reaches the winding start position, the outer surface of the core supported by the second winding machine is in contact with the outer surface of the second touch roller. As a result, winding of the film onto the core begins with the outer surface of the core of the second winding machine in contact with the outer surface of the second touch roller when the second winding machine reaches the winding start position.

[0014] Thus, this solution allows for rewinding of the film core while the outer surface of the first touch roller remains in contact with the outer surface of the winding roll, without employing the complex configuration of conventional rotation-type film winding devices (such as a mechanism for attaching and detaching two winding arms to each of the two winding bases). In other words, film cutting and winding of the end of the film onto the winding roll can be performed while the outer surface of the first touch roller remains in contact with the outer surface of the winding roll. Therefore, it is possible to realize a film winding device that combines the advantages of both turret-type and rotation-type film winding devices, such as having a relatively small number of parts and a relatively simple structure, while still being able to stably maintain the quality of the winding roll.

[0016] Furthermore, according to this solution Furthermore, when the turret plate rotates during rewinding, the rotation center of the winding roll does not move (in a direction perpendicular to the extending direction of the winding roll's rotation center). Therefore, during the rotation of the turret plate, the outer surface of the first touch roller remains in contact with the outer surface of the winding roll without adjusting the position of the first touch roller. In addition, changes in the posture of the winding roll relative to the first touch roller can be suppressed, and the winding of the film onto the winding roll can be performed stably. This also helps to maintain the quality of the winding roll stably.

[0017] Furthermore, the roller guide means ,before A second guide, which is continuous with the first guide section, moves the first touch roller upstream in the film supply direction relative to the second touch roller after the winding roll supported by the first winding machine has been unloaded. department They are prepared.

[0018] According to this GL rollAfter the roll is unloaded, the movement of the first touch roller is guided by the second guide section, causing the first touch roller to move upstream in the film supply direction relative to the second touch roller. This allows the first touch roller to be kept in standby for the next operation of winding film onto the core of the first winding machine. By circulating multiple touch rollers along the guide rail in this way and sequentially performing the rewinding operation, a smooth rewinding operation can be achieved.

[0019] Furthermore, the device is equipped with a winding frame that rotatably supports the turret plate and is movable along the film supply direction, and the position of the winding frame during rewinding is adjusted according to the outer diameter of the winding roll at the time of rewinding.

[0020] This design takes into account the possibility that, if the outer diameter of the winding roll differs at the time of rewinding, the outer surface of the core supported by the second winding machine, which moves toward the winding start position by the rotation of the turret plate, may shift from the position where it contacts the outer surface of the second touch roller. In other words, by adjusting the movement position of the winding frame during rewinding according to the outer diameter of the winding roll at that time, the outer surface of the core supported by the second winding machine is brought into contact with the outer surface of the second touch roller. As a result, even if the outer diameter of the winding roll differs at the time of rewinding, the winding of the film onto the core supported by the second winding machine can be started smoothly.

[0021] Also, the film winding method implemented by the above-described film winding device is also within the scope of the technical idea of the present invention. That is, a film winding method implemented by a film winding device including the above-described turret plate, winding unit, and touch roller unit, comprising: adjusting a moving position of the first winding machine in the radial direction such that an outer surface of the first touch roller contacts an outer surface of the winding roll according to a winding amount of the film around a core supported by the first winding machine that has started winding the film from a predetermined winding start position; adjusting a moving position of the first touch roller on the roller guide means such that an outer surface of the first touch roller contacts an outer surface of the winding roll according to a moving position of the first winding machine at the time of replacing the core around which the film is wound; At the point when the movement position of the first winding machine is set to a position where the rotation center of the winding roll and the turret center coincide, and before the turret plate starts to rotate, the second touch roller, which has moved in a direction parallel to the movement direction of the first touch roller and along the span of the film between the conveyor roller and the first touch roller, supports the span from below. adjusting a moving position of the second winding machine in the radial direction that moves toward the winding start position by the turning of the turret plate such that at least when the second winding machine reaches the winding start position, an outer surface of the core supported by the second winding machine becomes a position where it contacts an outer surface of the second touch roller. It is characterized by having the above steps.

[0022] Also by this specific matter, as in the above, it is possible to realize a film winding method that can obtain the advantages of both a turret-type film winding device and a rotation-type film winding device.

Effect of the Invention

[0023] In the present invention, according to the amount of film wound around the core, the moving position of the first winding machine is adjusted so that the outer surface of the first touch roller contacts the outer surface of the winding roll. According to the moving position of the first winding machine at the time of rewinding, the moving position of the first touch roller is adjusted so that the outer surface of the first touch roller contacts the outer surface of the winding roll. The moving position of the second winding machine that moves toward the winding start position by the rotation of the turret plate is adjusted so that when the second winding machine reaches the winding start position, the outer surface of the core of the second winding machine contacts the outer surface of the second touch roller. Therefore, without adopting a complicated configuration such as a conventional rotation type film winding device, rewinding can be performed while the outer surface of the first touch roller is in contact with the outer surface of the winding roll. As a result, it is possible to realize a film winding device that has both the advantages of a turret type film winding device and a rotation type film winding device, that is, it can stably maintain the quality of the winding roll while having a relatively small number of parts and a relatively simple structure.

Brief Description of the Drawings

[0024] [Figure 1] It is a plan view of the film winding device according to the embodiment. [Figure 2] It is a view seen from a horizontal direction orthogonal to the film supply direction of the left device unit in the film winding device according to the embodiment. [Figure 3] It is a view seen from the direction of line III-III in FIG. 1. [Figure 4] It is a view of the touch roller unit in the film winding device according to the embodiment seen from the same direction as in FIG. 2. [Figure 5] It is a view of the cutting unit in the film winding device according to the embodiment seen from the same direction as in FIG. 2. [Figure 6] It is a view corresponding to FIG. 1 showing the state at the start of film winding of the first winding machine in the large-diameter winding film winding operation. [Figure 7] It is a view corresponding to FIG. 1 showing the state of the first winding machine during film winding in the large-diameter winding film winding operation. [Figure 8] This figure corresponds to Figure 1, showing the state in which a predetermined amount of film has been wound onto the core of the first winding machine during the large-diameter film winding operation. [Figure 9] This is a diagram corresponding to Figure 1, showing the center movement state of the first winding machine during the winding operation of a large-diameter rolled film. [Figure 10] This figure corresponds to Figure 1, showing the state of the turret plate after rotation during the winding operation of a large-diameter film. [Figure 11] This figure, equivalent to Figure 1, shows the state when the winding roll is unloaded during the winding operation of a large-diameter film. [Figure 12] This is a diagram corresponding to Figure 8 in the winding operation of a small-diameter rolled film. [Figure 13] Figure 9 corresponds to the winding operation of a small-diameter rolled film. [Figure 14] Figure 10 corresponds to the winding operation of a small-diameter rolled film. [Figure 15] This is a diagram corresponding to Figure 11 in the winding operation of a small-diameter rolled film. [Modes for carrying out the invention]

[0025] Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the present invention will be described in the case where it is applied to a two-axis film winding device capable of supporting two winding cores. However, the present invention is not limited to this and can also be applied to a film winding device capable of supporting three or more winding cores.

[0026] -Configuration of the film winding device- Figure 1 is a plan view of the film winding device 100 according to this embodiment. In the following description, the direction along the supply direction of the film 150 (shown as a dashed line in Figure 1) will be called the Y direction, the horizontal direction perpendicular to the supply direction of the film 150 will be called the X direction, and the vertical direction will be called the Z direction. In Figure 1, the direction of arrow Y1 is the upstream side (upstream side in the supply direction of the film 150), the direction of arrow Y2 is the downstream side (downstream side in the supply direction of the film 150), the direction of arrow X1 is the left side of the film winding device 100, the direction of arrow X2 is the right side of the film winding device 100, the Z1 direction (front side of the paper) is the upper side in the vertical direction, and the Z2 direction (back side of the paper) is the lower side in the vertical direction.

[0027] As shown in Figure 1, the film winding device 100 comprises a left-side device unit 101 and a right-side device unit 102 facing each other in the X direction. By replacing the winding cores C1 and C2 supported between these device units 101 and 102, the device winds the film 150 supplied from the upstream (Y1 direction) upstream process into multiple winding cores C1 and C2 in sequence. In addition to the device units 101 and 102, the film winding device 100 also includes components such as a conveyor roller 5, a touch roller unit 6 (see Figure 4), a cutting unit 7 (see Figure 5), a discharge trolley 8 (see Figure 1), and a control panel 9.

[0028] The film 150 is, for example, a strip of resin film with a relatively wide width (e.g., 3000 mm). However, the width of the film 150 is not limited to this. The thickness and material of the film 150 can be changed, and the film winding device 100 can wind films 150 with different thicknesses and materials.

[0029] Furthermore, the film winding device 100 is configured to wind the film 150 at high speed (for example, 200 m / min). However, the value of the film winding speed is not limited to this. In addition, the winding form in the film winding device 100 includes upper winding, in which the lower surface of the supplied film 150 is wound inward on the winding roll R (the winding roll R is formed by winding the film 150 onto the winding core C1: see Figures 7 and 8), and lower winding, in which the upper surface of the supplied film 150 is wound inward on the winding roll R. In this embodiment, the case where lower winding is performed will be explained as an example. In this embodiment, a no-tape winding method in which the film 150 is wound onto the winding core C1 (C2) using static electricity will be explained as an example.

[0030] (Device unit) The left-side device unit 101 and the right-side device unit 102 have a symmetrical configuration. The left-side device unit 101 will be described as a representative example. In Figure 1, components of the right-side device unit 102 that are identical to those of the left-side device unit 101 described below are denoted by the same reference numerals.

[0031] Figure 2 shows the left-side device unit 101 (hereinafter sometimes simply referred to as device unit 101) viewed from a horizontal direction perpendicular to the film 150 supply direction (the direction along arrow X1). Figure 3 shows the view from the direction of line III-III in Figure 1.

[0032] As shown in Figures 2 and 3, the device unit 101 consists of a base plate 1, a winding frame 2, and a turret mechanism 3.

[0033] <Base Plate> The base plate 1 is a member for supporting the winding frame 2, and has two guide rails 11, 11 that extend in the Y direction attached to its upper surface which extends in the horizontal direction.

[0034] Furthermore, a unit support plate 12 is erected at the end of the base plate 1 on the X2 side, extending in a direction perpendicular to the X direction. This unit support plate 12 is used to support the transport roller 5, touch roller unit 6, and cutting unit 7, which will be described later.

[0035] <Retractable frame> The winding frame 2 has sliders 21, 21 at multiple locations on its underside, and each slider 21 is mounted on a guide rail 11 on the base plate 1. This allows the winding frame 2 to move in the Y direction along the guide rail 11. In this embodiment, a linear motor 22 (see Figure 3) is mounted on the underside of the winding frame 2 as the power source for this movement. The position of the winding frame 2 on the base plate 1 is adjusted by controlling this linear motor 22. The control of the linear motor 22 is performed according to control command signals transmitted from the control panel 9.

[0036] <Turret mechanism> The turret mechanism 3 comprises a turret plate 31 and a pair of winding machines 32 and 33. In this embodiment, only two winding machines 32 and 33 are provided, but there may be three or more winding machines. These winding machines 32 and 33 constitute the winding unit as defined in this invention.

[0037] The turret plate 31 is made of a substantially rectangular plate material extending in a direction perpendicular to the X direction, and its longitudinal center is supported so as to be able to rotate around a horizontal axis (around the turret center O). Specifically, as shown in Figure 3, the turret plate 31 has a pivot shaft 31b extending along the X direction connected to the surface 31a located on the X1 direction side (hereinafter referred to as the back surface 31a of the turret plate), and this pivot shaft 31b penetrates the winding frame 2 horizontally and is inserted into the interlocking unit 4. At the X1 direction end of the pivot shaft 31b in the portion inserted into the interlocking unit 4, a slip ring 41 is attached, which is used to supply power to a motor (not shown) for rotating the turret plate 31 and to transmit control signals to other motors described later. Furthermore, on the pivot shaft 31b, a gear 42 is integrally rotatable at a position on the X2 direction side of the slip ring 41 in the portion inserted into the interlocking unit 4. This gear is used to transmit power for synchronous rotation between the turret plate 31 (the turret plate 31 of the left device unit 101) and the turret plate 31 of the right device unit 102. However, this is not the only configuration for synchronous rotation of each turret plate 31, 31.

[0038] Furthermore, guide rails 31d, 31d are provided along the entire length of the turret plate 31, extending from the upper edge to the lower edge of the surface 31c located on the X2 direction side of the turret plate 31 (hereinafter referred to as the front surface 31c of the turret plate). Therefore, as shown in Figure 2, when the turret plate 31 is in a position extending horizontally (Y direction), each of the guide rails 31d, 31d also extends horizontally (Y direction).

[0039] Furthermore, as shown in Figure 2, racks 31e, 31e are attached to each guide rail 31d, 31d, extending along the guide rails 31d, 31d. The range in which these racks 31e, 31e are attached is the range in which the winding machines 32, 33 move. Specifically, in the state shown in Figure 2, the rack 31e attached to the lower guide rail 31d is provided in the range from the end of the guide rail 31d on the Y1 side to a position a predetermined distance to the Y2 side of the turret center O. Also, in the state shown in Figure 2, the rack 31e attached to the upper guide rail 31d is provided in the range from the end of the guide rail 31d on the Y2 side to a position a predetermined distance to the Y1 side of the turret center O.

[0040] The winding machines 32 and 33 consist of a first winding machine 32 located on the Y1 direction side (upstream side in the film supply direction) in the state shown in Figure 2, and a second winding machine 33 located on the Y2 direction side (downstream side in the film supply direction) in the state shown in Figure 2. In other words, the first winding machine 32 is arranged on one side of the turret plate 31 in the direction along the radial direction with respect to the turret center O, and the second winding machine 33 is arranged on the other side of the turret plate 31 in the direction along the radial direction with respect to the turret center O.

[0041] The first winding machine 32 is equipped with a base plate 32a extending in a direction perpendicular to the X direction. Sliders 32c, 32c, ... are provided on the surface 32b of the base plate 32a located on the X1 direction side (hereinafter referred to as the winding machine back surface 32b: see Figure 3), and each slider 32c is engaged with a guide rail 31d on the turret plate 31. In addition, a pinion 32d (see Figure 2) is provided on the winding machine back surface 32b, which has a rotation axis extending in a direction along the X direction and engages with a rack 31e. As a result, the first winding machine 32 is movable within the range in which the rack 31e is provided along the longitudinal direction of the turret plate 31. In this embodiment, a linear motor 32e (see Figure 3) is attached to the winding machine back surface 32b as a power source for this movement. The position of the first winding machine 32 on the turret plate 31 is adjusted by controlling this linear motor 32e. The linear motor 32e is controlled according to control command signals transmitted from the control panel 9.

[0042] Furthermore, a winding shaft 32g is rotatably supported on the surface 32f of the base plate 32a located on the X2 direction side (hereinafter referred to as the winding machine front surface 32f). A cylindrical winding core C1 is fitted into the tip of this winding shaft 32g, and the winding core C1 is detachably supported on the winding shaft 32g. A motor 32h is mounted on the back surface 32b of the winding machine, serving as the rotational drive source for the winding shaft 32g. In other words, as the winding shaft 32g rotates due to the operation of this motor 32h, the winding core C1 rotates, and the film 150 is wound onto this winding core C1. The rotation of this motor 32h is controlled according to control command signals transmitted from the control panel 9.

[0043] As shown in Figure 2, the second winding machine 33 has a symmetrical configuration to the first winding machine 32 and, like the first winding machine 32, is equipped with a base plate 33a extending in a direction perpendicular to the X direction. Each slider 33c, 33c, ... located on the back of the winding machine on the X1 direction side of the base plate 33a is engaged with a guide rail 31d on the turret plate 31. In addition, a pinion 33d is provided on the back of the winding machine, which has a rotating shaft extending in a direction along the X direction and engages with the rack 31e. As a result, the second winding machine 33 can also move within the range in which the rack 31e is provided along the longitudinal direction of the turret plate 31. The power source for this movement is also a linear motor attached to the back of the winding machine. This linear motor is also controlled according to control command signals transmitted from the control panel 9.

[0044] Furthermore, a winding shaft 33g is rotatably supported on the front surface 33f of the winding machine located on the X2 direction side of the base plate 33a. A cylindrical winding core C2 is fitted to the tip of this winding shaft 33g, and the winding core C2 is detachably supported on the winding shaft 33g. A motor 33h is mounted on the back of the winding machine as the rotational drive source for the winding shaft 33g. In other words, when the second winding machine 33 is in the winding start position P1 described later, the winding shaft 33g rotates due to the operation of this motor 33h, causing the winding core C2 to rotate and the film 150 to be wound onto the winding core C2. The rotation of this motor 33h is controlled according to control command signals transmitted from the control panel 9.

[0045] The turret mechanism 3 allows the winding cores C1 and C2 to move (revolve around the turret center O) between two horizontal states: one winding machine (e.g., the first winding machine 32) is positioned on the Y1 side of the turret center O, and the other winding machine (e.g., the second winding machine 33) is positioned on the Y2 side of the turret center O (the longitudinal direction of the turret plate 31 is aligned with the Y direction), and the other horizontal state where one winding machine is positioned on the Y2 side of the turret center O, and the other winding machine is positioned on the Y1 side of the turret center O. Of the positions of the winding machines 32 and 33, the position on the Y1 side of the turret center O, and the position furthest to the Y1 side, is the position for winding the film 150 onto the winding cores C1 (C2). Hereinafter, this position will be referred to as the winding start position P1. Furthermore, the position furthest to the Y2 direction from the turret center O is the position for removing the winding roll R, which is formed by winding film 150 onto the winding core C1 (C2), or the position for keeping the winding roll R in standby for the purpose of winding an empty core or adding more film. Hereafter, this position will be referred to as the discharge position P2.

[0046] (Conveyor roller) The conveyor roller 5 is rotatably supported on the unit support plate 12 and is provided to convey the film 150 supplied from the upstream side to the winding core C1 (C2) located at the winding start position P1 or to the winding roll R during winding, via the touch roller 62a (63a) described later. Although only one conveyor roller 5 is shown in Figures 1 and 2, multiple conveyor rollers 5 are provided as needed.

[0047] (Touch roller unit) Figure 4 is a view of the touch roller unit 6 from the same direction as in Figure 2. As shown in Figure 4, the touch roller unit 6 includes a guide rail (roller guide means) 61 and a pair of touch roller assemblies 62 and 63.

[0048] As shown in Figure 3, the guide rail 61 is provided on the surface 12a of the unit support plate 12 located on the X2 direction side (hereinafter referred to as the front surface 12a of the support plate). This guide rail 61 consists of a rail member that guides the movement of the touch roller assemblies 62 and 63 along a predetermined trajectory. Specifically, as shown in Figure 4, the guide rail 61 has an oval shape when viewed from the direction along arrow X1. The guide rail 61 includes an upper linear guide section 61a located above and extending along the Y direction, a lower linear guide section 61b located below the upper linear guide section 61a at a predetermined distance and extending along the Y direction, an arc-shaped upstream arc guide section 61c connecting the Y1 direction ends of the upper linear guide section 61a and the lower linear guide section 61b, and an arc-shaped downstream arc guide section 61d connecting the Y2 direction ends of the upper linear guide section 61a and the lower linear guide section 61b.

[0049] The ends of the upper linear guide section 61a and the lower linear guide section 61b on the Y1 direction define the range that allows the touch roller 62a (63a) to be guided in the Y1 direction. As shown by the dashed line in Figure 4, when the turret plate 31 is in a position that extends horizontally (Y direction), the ends are set to be a predetermined distance in the Y1 direction from the Y1 direction edge of the turret plate 31 and also in the Y1 direction from the conveyor roller 5.

[0050] Furthermore, the ends of the upper linear guide section 61a and the lower linear guide section 61b on the Y2 direction side define a range that allows the touch roller 62a (63a) to guide in the Y2 direction, and are defined as the range in which the touch roller 62a (63a) can contact the outer surface of the winding roll R when the winding machine 32 (33), with a predetermined amount of film 150 wound onto the winding core C1 (C2), has moved to the center of the turret plate 31 (to a position where the center of the winding core C1 (C2) coincides with the turret center O).

[0051] Because the guide rail 61 has this configuration, the upper straight guide section 61a constitutes the first guide section in this invention (the first guide section that guides the movement of the first touch roller between the position where the outer surface of the first touch roller contacts the outer surface of the winding core supported by the first winding machine at the winding start position, and the position where the outer surface of the first touch roller contacts the outer surface of the winding roll when the first winding machine has moved to a position where the rotation center of the winding roll supported by the first winding machine coincides with the turret center). Furthermore, the lower straight guide section 61b, the upstream arc guide section 61c, and the downstream arc guide section 61d constitute the second guide section in this invention (the second guide section that is continuous with the first guide section and moves the first touch roller upstream in the film supply direction relative to the second touch roller after the winding roll supported by the first winding machine has been discharged).

[0052] Furthermore, the height of the upper linear guide section 61a is set to be slightly lower than the height of the turret center O. Specifically, the height of this upper linear guide section 61a is set so that when the touch roller assemblies 62 and 63 are positioned on this upper linear guide section 61a, the height of the centers of the touch rollers 62a and 63a approximately coincides with the height of the turret center O.

[0053] Each touch roller assembly 62, 63 consists of a first touch roller assembly 62 and a second touch roller assembly 63. Each touch roller assembly 62, 63 has the same configuration as the others. Figure 4 shows the state in which the first touch roller assembly 62 is guided by the upper linear guide section 61a and the second touch roller assembly 63 is guided by the lower linear guide section 61b. On the other hand, Figure 3 shows the state in which the first touch roller assembly 62 is guided by the lower linear guide section 61b.

[0054] The first touch roller assembly 62 comprises a moving plate 62b, a moving shaft 62c, a rack and pinion 62d, a slip ring 62e, and a first touch roller 62a.

[0055] The movable plate 62b is made of a plate material that extends in a direction perpendicular to the X direction. A slider 62g is provided on the surface of the movable plate 62b located on the X1 direction side (hereinafter referred to as the back surface 62f of the plate), and this slider 62g is engaged with the guide rail 61 on the front surface 12a of the support plate. This allows the movable plate 62b to move along the guide rail 61.

[0056] The moving shaft 62c connects the moving plate (moving plate 62b of the left device unit 101) and the moving plate of the right device unit 102, so that each moving plate 62b moves synchronously along the guide rail 61. However, this is not the only configuration for synchronously moving each moving plate 62b along the guide rail 61.

[0057] The rack and pinion 62d comprises a rack 62h extending along the guide rail 61 and a pinion 62i that meshes with the rack 62h. The end of the pinion 62i on the X2 direction side of its rotation axis is connected to the moving shaft 62c via a moving plate 62b, and the end of the pinion 62i on the X1 direction side of its rotation axis is fitted with a servo motor (not shown) for rotating the pinion 62i and a slip ring 62e used for supplying power to the servo motor and transmitting control signals. The rotation of the servo motor is controlled according to control command signals transmitted from the control panel 9.

[0058] The first touch roller 62a moves integrally with the moving shaft 62c along the guide rail 61. Specifically, a support plate 62j that rotatably supports the first touch roller 62a is attached to the moving shaft 62c. Furthermore, the first touch roller 62a is able to move slightly in the direction along the Y direction while receiving compressed air pressure from an air pressure supply path (not shown), and can contact the outer surface of the winding core C1 and the outer surface of the winding roll R while applying a predetermined pressure. Furthermore, as will be described later, when rewinding (when switching the core that winds the film 150 from one core C1 to the other core C2), the position of the first winding machine 32 is such that the rotation center of the winding roll R (which coincides with the rotation center of the winding core C1) coincides with the turret center O. However, as mentioned above, the first touch roller 62a is slightly movable in the direction along the Y direction, so even if the position of the first winding machine 32 is slightly shifted during this rewinding, it is still possible to bring the first touch roller 62a into contact with the outer surface of the winding roll R.

[0059] The second touch roller assembly 63 has the same configuration as the first touch roller assembly 62, and as shown in Figure 4, it includes a second touch roller 63a, a movable plate 63b, a movable shaft 63c, a support plate 63j, etc. The configuration of these components is the same as that of the first touch roller assembly 62, so a detailed explanation is omitted here. The second touch roller 63a, like the first touch roller 62a, is movable along the Y direction while receiving compressed air pressure from an air pressure supply path (not shown), and can contact the outer surface of the winding core C2 and the outer surface of the winding roll R while applying a predetermined pressure.

[0060] (Cutting unit) Figure 5 is a view of the cutting unit 7 from the same direction as in Figure 2. As shown in Figure 5, the cutting unit 7 is provided to cut the film 150 when rewinding.

[0061] This cutting unit 7 includes an arm 71 that is rotatably supported on a unit support plate 12, and a cutting blade 72 attached to the arm 71.

[0062] The arm 71 has a roughly L-shape when viewed from the X direction, and its pivot shaft 71a is connected to the drive shaft of a motor (not shown).

[0063] The cutting blade 72 is attached to the tip of the arm 71. The movement trajectory of the cutting blade 72 accompanying the rotation of the arm 71 is slightly to the Y2 direction side of the position of the winding core C1 (C2) of the winding machine 32 (33) at the winding start position P1. Therefore, when the cutting blade 72 cuts the film 150 as the arm 71 rotates, the film 150 is cut at a position slightly to the Y2 direction side of the position of the winding core C1 (C2) (see the posture of the arm 71 shown by dashed lines in Figure 5). The length of the cutting blade 72 along the X direction is the same as the width dimension of the film 150, and the film 150 is cut when the cutting blade 72 is pressed against the film 150 by the rotation of the arm 71. In other words, the cutting unit 7 in this embodiment is of the guillotine type.

[0064] -Film winding operation- Next, the winding operation of the film 150 by the film winding device 100 configured as described above will be explained. The winding operation of the film 150 differs depending on whether the amount of film 150 wound onto the core C1 is relatively large (hereinafter referred to as large-diameter winding) or relatively small (for example, when the outer diameter of the winding roll R is about half that of a full wind: hereinafter referred to as small-diameter winding). The operations for each case will be explained below.

[0065] (Large diameter film winding operation) Figures 6 to 11 show the film winding operation in the case of large diameter winding.

[0066] First, as shown in Figure 6 (a diagram corresponding to Figure 1 showing the state of the first winding machine 32 at the start of film winding), with the first winding machine 32 in the winding start position P1 and the second winding machine 33 in the discharge position P2, winding of the film 150 onto the winding core C1 supported by the first winding machine 32 begins.

[0067] Subsequently, as shown in Figure 7 (corresponding to Figure 1, which shows the state during film winding), as the winding of the film 150 onto the core C1 progresses, the outer diameter of the winding roll R increases, and as the distance between the axes of the first touch roller 62a and the winding core C1 increases, the first winding machine 32 moves toward the Y2 direction. In other words, the first winding machine 32 moves toward the Y2 direction while maintaining the position of the first touch roller 62a. As a result, the winding of the film 150 onto the winding core C1 progresses while the state in which the first touch roller 62a is in contact with the outer surface of the winding roll R is maintained. Figure 8 shows the state in which a predetermined amount of film 150 has been wound onto the winding core C1.

[0068] After a predetermined amount of film 150 has been wound onto the core C1, the first winding machine 32 moves to the center of the turret plate 31 in the longitudinal direction, as shown in Figure 9 (a diagram corresponding to Figure 1 showing the center movement state of the first winding machine 32). In other words, it moves toward the Y2 direction. At this time, the first touch roller 62a also moves toward the Y2 direction, and the outer surface of the first touch roller 62a continues to be in contact with the outer surface of the winding roll R. In this case, the position of the first winding machine 32 is such that the rotation center of the winding roll R (which coincides with the rotation center of the core C1) and the turret center O coincide.

[0069] In this state, a rewinding operation (switching the core that winds the film 150 from core C1 to core C2) will be performed. During this rewinding, the turret plate 31 will rotate around the turret center O (rotating counterclockwise in the figure), and the second winding machine 33 will move to the winding start position P1. When the rotation of the turret plate 31 is complete, the position of the second touch roller 63a will be adjusted so that the outer surface of the core C2 supported by the second winding machine 33 contacts the outer surface of the second touch roller 63a. In other words, the position of the second touch roller 63a will be adjusted so that the distance t1 (the distance between the rotation center of the winding roll R and the outer surface of the core C2 on the Y2 side) and t2 (the distance between the rotation center of the winding roll R and the outer surface of the second touch roller 63a on the Y2 side) in Figure 9 are approximately the same.

[0070] When the turret plate 31 rotates in this state, as shown in Figure 10 (a diagram corresponding to Figure 1 showing the state of the turret plate 31 after rotation), the outer surface of the winding core C2 supported by the second winding machine 33 comes into contact with the outer surface of the second touch roller 63a. With the second winding machine 33 positioned at the winding start position P1 in this way, winding of the film 150 onto the winding core C2 supported by the second winding machine 33 begins. Almost simultaneously with the start of this winding, the arm 71 of the cutting unit 7 rotates (from the position shown by the solid line in Figure 5 to the position shown by the dashed line), and the film 150 is cut at a position slightly to the Y2 direction side of the position of the winding core C2. This completes the rewinding, switching the winding core on which the film 150 is wound from winding core C1 to winding core C2. Furthermore, even after the rewinding is complete, the outer surface of the first touch roller 62a remains in contact with the outer surface of the winding roll R. As a result, the end of the cut film 150 is wound onto the winding roll R while in contact with the first touch roller 62a, ensuring that the end of the film is wound up stably.

[0071] As winding of the film 150 onto the core C2 begins, the first winding machine 32 moves in the Y2 direction. Figure 11 shows the state in which the first winding machine 32 has moved to the discharge position P2 while supporting the winding roll R. In this state, the discharge trolley 8 moves to the underside of the winding roll R, and the support of the winding roll R by the winding shaft 32g of the first winding machine 32 is released, and the winding roll R is discharged onto the discharge trolley 8. Subsequently, a new winding core (empty core) is attached to the winding shaft 32g of the first winding machine 32. This results in a state similar to that shown in Figure 6 (in reality, the positions of the first winding machine 32 and the second winding machine 33 are swapped), and the winding of the film 150 and rewinding by rotating the turret plate 31 are repeated as described above.

[0072] (Small diameter film winding operation) Figures 12 to 15 show the film winding operation in the case of small diameter winding.

[0073] Even in this small-diameter winding case, the state at the start of winding the film 150 onto the winding core C1 is the same as in Figure 6.

[0074] Subsequently, as in the large-diameter film winding operation described above, as the winding of the film 150 onto the core C1 progresses, the first winding machine 32 moves toward the Y2 direction, and the winding of the film 150 onto the core C1 progresses while the first touch roller 62a remains in contact with the outer surface of the winding roll R.

[0075] Figure 12 shows the state in which a predetermined amount (a predetermined amount resulting in a small diameter winding) of film 150 is wound onto the core C1.

[0076] After a predetermined amount of film 150 has been wound onto the core C1, the first winding machine 32 moves to the longitudinal center of the turret plate 31, as shown in Figure 13 (a diagram corresponding to Figure 1 showing the center movement state of the first winding machine 32). At this time, the first touch roller 62a also moves toward the Y2 direction, and the outer surface of the first touch roller 62a continues to be in contact with the outer surface of the winding roll R. In this case as well, the position of the first winding machine 32 is such that the rotation center of the winding roll R (which coincides with the rotation center of the core C1) and the turret center O coincide.

[0077] In this state, the rewinding will be performed. During this rewinding, the turret plate 31 rotates around the turret center O, and the second winding machine 33 moves toward the winding start position P1. In this case as well, once the rotation of the turret plate 31 is complete, the movement position of the second touch roller 63a is adjusted so that the outer surface of the winding core C2 supported by the second winding machine 33 contacts the outer surface of the second touch roller 63a. In other words, the movement position of the second touch roller 63a and the movement position of the winding frame 2 are adjusted so that the distance t3 (the distance between the rotation center of the winding roll R and the outer surface of the winding core C2 on the Y2 side) and t4 (the distance between the rotation center of the winding roll R and the outer surface of the second touch roller 63a on the Y2 side) in Figure 13 are approximately the same.

[0078] When the turret plate 31 rotates in this state, as shown in Figure 14 (a diagram corresponding to Figure 1 showing the state of the turret plate 31 after rotation), the outer surface of the core C2 supported by the second winding machine 33 comes into contact with the outer surface of the second touch roller 63a, and winding of the film 150 onto the core C2 supported by the second winding machine 33 begins. In the small-diameter winding operation, the position of the second winding machine 33 at this time corresponds to the predetermined winding start position as defined in this invention. Approximately simultaneously with the start of this winding, the arm 71 of the cutting unit 7 rotates, and the film 150 is cut at a position slightly to the Y2 direction side from the position of the core C2. Even after the rewinding operation is completed in this way, the outer surface of the first touch roller 62a continues to be in contact with the outer surface of the winding roll R, so the end of the winding of the cut film 150 is wound onto the winding roll R while in contact with the first touch roller 62a, and the end of the winding is wound stably.

[0079] At the start of winding the film 150, the second winding machine 33 is located in the Y2 direction relative to the winding start position P1. Therefore, as shown in Figure 15 (a diagram corresponding to Figure 1 showing the state when the winding roll is unloaded), the second winding machine 33 is moved to the winding start position P1 (moved in the Y1 direction). Also, in the state shown in Figure 15, the first winding machine 32 has moved to the unloading position P2 while supporting the winding roll R. In this state, the unloading trolley 8 moves to the underside of the winding roll R, and the support of the winding roll R by the winding shaft 32g of the first winding machine 32 is released, and the winding roll R is unloaded onto the unloading trolley 8. After that, a new winding core (empty winding core) is attached to the winding shaft 32g of the first winding machine 32. As a result, the system will be in a state similar to that shown in Figure 6 (in reality, the positions of the first winding machine 32 and the second winding machine 33 are swapped), and the winding of the film 150 and the rewinding by rotating the turret plate 31 will be repeated as described above.

[0080] -Effects of the embodiment- As described above, in this embodiment, the movement position of the first winding machine 32 is adjusted so that the outer surface of the first touch roller 62a contacts the outer surface of the winding roll R in accordance with the amount of film 150 wound onto the winding core C1. The movement position of the first touch roller 62a is adjusted so that the outer surface of the first touch roller 62a contacts the outer surface of the winding roll R in accordance with the movement position of the first winding machine 32 during rewinding. The movement position of the second winding machine 33, which moves toward the winding start position P1 by the rotation of the turret plate 31, is adjusted so that when the second winding machine 33 reaches the winding start position P1, the outer surface of the winding core C2 of the second winding machine 33 contacts the outer surface of the second touch roller 63a. Therefore, rewinding can be performed while the outer surface of the first touch roller 62a is in contact with the outer surface of the winding roll R, without employing a complex configuration like that of conventional rotation-type film winding devices. As a result, a film winding device 100 can be realized that combines the advantages of both turret-type and rotation-type film winding devices, such as having a relatively small number of parts and a relatively simple structure, while still being able to stably maintain the quality of the winding roll R.

[0081] Furthermore, in this embodiment, the position of the first winding machine 32 at the start of rotation of the turret plate 31 during rewinding is set to a position where the rotation center of the winding roll R supported by the first winding machine 32 coincides with the turret center O. As a result, when the turret plate 31 rotates during rewinding, the rotation center of the winding roll R does not move (it moves in a direction perpendicular to the extending direction of the rotation center of the winding roll R). Therefore, during the rotation of the turret plate 31, the outer surface of the first touch roller 62a continues to be in contact with the outer surface of the winding roll R without adjusting the position of the first touch roller 62a. In addition, it is possible to suppress changes in the posture of the winding roll R relative to the first touch roller 62a, and the winding of the film 150 onto the winding roll R can be performed stably.

[0082] -Other Embodiments- Furthermore, the present invention is not limited to the embodiments described above, and all modifications and applications are possible within the scope of the claims and equivalents thereof.

[0083] For example, the above embodiment described the case in which the present invention is applied to a no-tape winding method. However, the present invention is not limited to this, and can also be applied to a tape winding method in which the film 150 is wound onto the winding core C1 (C2) by applying an adhesive treatment such as adhesive tape to the outer surface of the winding core C1 (C2).

[0084] Furthermore, in the above embodiment, the winding machine was provided with a first winding machine 32 and a second winding machine 32, and the touch rollers were provided with a first touch roller 62a and a second touch roller 63a. The present invention is not limited to this, and may be provided with three or more winding machines, and each of them may be provided with three or more touch rollers.

[0085] Furthermore, in the above embodiment, the movement position of the second touch roller 63a was adjusted so that the outer surface of the winding core C2 would contact the outer surface of the second touch roller 63a when the rotation of the turret plate 31 was completed, before the rotation of the turret plate 31 began during rewinding. The present invention is not limited to this, and the movement position of the second touch roller 63a may be adjusted while the turret plate 31 is rotating. In other words, it is sufficient to adjust the movement position of the second touch roller 63a so that the outer surface of the winding core C2 would contact the outer surface of the second touch roller 63a when the second winding machine 33 reaches the winding start position. [Industrial applicability]

[0086] The present invention is applicable to a film winding device that sequentially winds film onto multiple cores while replacing the core. [Explanation of Symbols]

[0087] 2 Reel Frames 31 Turret Plate 32 1st winder 33 Second winder 6 Touch Roller Unit 61 Guide rail (roller guide means) 62a First touch roller 63a Second touch roller 100 Film winding device 150 film C1, C2 winding core O Turret Center

Claims

1. In a film winding device that sequentially winds film onto multiple winding cores while replacing the winding core, A turret plate that can rotate around the center of the turret, A winding unit having at least a first winding machine and a second winding machine, which are arranged at multiple locations on the turret plate in a direction along the radial direction with respect to the turret center and are movable in the direction along the radial direction, and each of them supports the winding core in a replaceable manner, The touch roller unit comprises a first touch roller corresponding to the first winding machine and a second touch roller corresponding to the second winding machine, and also includes roller guide means for causing the first touch roller to follow the movement of the first winding machine as it winds the film supplied via a conveyor roller to the winding core supported by the first winding machine at a predetermined winding start position. The configuration is such that the movement position of the first winding machine in the radial direction is adjusted so that the outer surface of the first touch roller contacts the outer surface of the winding roll formed by the film being wound onto the winding core, according to the amount of film wound onto the winding core supported by the first winding machine, which started winding the film from the winding start position. The configuration is such that, in accordance with the movement position of the first winding machine when replacing the winding core that winds the film, the movement position of the first touch roller on the roller guide means is adjusted so that the outer surface of the first touch roller contacts the outer surface of the winding roll. The configuration is such that the radial movement position of the second winding machine, which moves toward the winding start position due to the rotation of the turret plate, is adjusted so that at least when the second winding machine reaches the winding start position, the outer surface of the winding core supported by the second winding machine comes into contact with the outer surface of the second touch roller. The roller guide means is composed of an annular guide rail that guides the movement of the first touch roller and the second touch roller, and the guide rail has a first guide portion that guides the movement of the first touch roller between a position where the outer surface of the first touch roller contacts the outer surface of the winding core supported by the first winding machine at the winding start position and a position where the outer surface of the first touch roller contacts the outer surface of the winding roll when the first winding machine has moved to a position where the rotation center of the winding roll supported by the first winding machine coincides with the turret center. The extending direction of the first guide portion is parallel to the direction of movement of the first winding machine when the film is being wound. The position of the first winding machine at the start of rotation of the turret plate during the winding change is set to a position where the rotation center of the winding roll supported by the first winding machine coincides with the center of the turret. As the first winding machine moves toward a position where the rotation center of the winding roll coincides with the center of the turret, the second touch roller is guided by the first guide and moves in a direction parallel to the direction of movement of the first touch roller. A film winding device characterized in that, when the movement position of the first winding machine is set to a position where the rotation center of the winding roll coincides with the center of the turret, and before the rotation of the turret plate begins, the second touch roller, which has moved in a direction parallel to the movement direction of the first touch roller and along the span of the film between the conveying roller and the first touch roller, is configured to support the span from below.

2. In the film winding device according to Claim 1, The film winding device is characterized in that the roller guide means is continuous with the first guide portion and includes a second guide portion that moves the first touch roller upstream in the film supply direction relative to the second touch roller after the winding roll supported by the first winding machine has been discharged.

3. In the film winding device according to claim 1 or 2, The turret plate is supported so as to be rotatable, and the winding frame is provided so as to be movable along the direction in which the film is supplied. A film winding device characterized in that the position of the winding frame during rewinding is adjusted according to the outer diameter of the winding roll at the time of rewinding.

4. A film winding method implemented in a film winding device that sequentially winds film onto a plurality of winding cores while replacing the winding core, The aforementioned film winding device includes a turret plate that can rotate around the center of the turret, A winding unit having at least a first winding machine and a second winding machine, which are arranged at multiple locations on the turret plate in a direction along the radial direction with respect to the turret center and are movable in the direction along the radial direction, and each of them supports the winding core in a replaceable manner, The touch roller unit comprises a first touch roller corresponding to the first winding machine and a second touch roller corresponding to the second winding machine, and also includes roller guide means for causing the first touch roller to follow the movement of the first winding machine as it winds the film supplied via a conveyor roller to the winding core supported by the first winding machine at a predetermined winding start position. The roller guide means is composed of an annular guide rail that guides the movement of the first touch roller and the second touch roller, and the guide rail has a first guide portion that guides the movement of the first touch roller between a position where the outer surface of the first touch roller contacts the outer surface of the core supported by the first winding machine at the winding start position and a position where the outer surface of the first touch roller contacts the outer surface of the winding roll when the first winding machine has moved to a position where the rotation center of the winding roll formed by winding the film onto the core supported by the first winding machine coincides with the center of the turret. The extending direction of the first guide portion is parallel to the direction of movement of the first winding machine when the film is being wound, and the second touch roller is guided by the first guide portion and moves in a direction parallel to the direction of movement of the first touch roller when the first winding machine moves toward a position where the rotation center of the winding roll and the center of the turret coincide. The steps include adjusting the radial movement position of the first winding machine so that the outer surface of the first touch roller contacts the outer surface of the winding roll, according to the amount of film wound onto the winding core supported by the first winding machine, which started winding the film from the winding start position, The steps include adjusting the position of the first touch roller on the roller guide means according to the position of the first winding machine when replacing the winding core that winds the film, so that the outer surface of the first touch roller contacts the outer surface of the winding roll, At the point when the movement position of the first winding machine is set to a position where the rotation center of the winding roll and the turret center coincide, and before the turret plate starts to rotate, the second touch roller, which has moved in a direction parallel to the movement direction of the first touch roller and along the span of the film between the conveyor roller and the first touch roller, supports the span from below. A film winding method characterized by comprising the step of adjusting the radial movement position of the second winding machine, which moves toward the winding start position by the rotation of the turret plate, such that at least when the second winding machine reaches the winding start position, the outer surface of the winding core supported by the second winding machine is in contact with the outer surface of the second touch roller.

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