Support device and recovery method for sheet material

Abstract

To provide a winding support device that enables easy separation of a sheet material roll and a winding core member and a recovery method for a sheet material.SOLUTION: A support device 20 is used in a separation process for separating a winding core member 11 for winding a sheet material and a sheet material roll 19 wound on the winding core member 11. The support device 20 includes a deformation control member 21 that regulates deformation due to its own weight of the sheet material roll 19 by supporting the outer circumference of the sheet material roll 19 from both sides.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a support device and a method for recovering sheet material. [Background technology]

[0002] As described in Patent Document 1, for example, when a film such as a glass film is wound into a roll to form a film roll, a protective sheet may be used. The protective sheet is wound up in a state laminated with the main surface of the film in order to protect the main surface of the film. The protective sheet wound up together with the film in this way is unwound together with the film from the film roll and then separated from the film. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2021 / 131617 Summary of the Invention [Problem to be solved by the invention]

[0004] As described above, for example, a sheet material such as a protective sheet separated from a film may be collected as a sheet material roll wound around a core member. The ease of separating the sheet material roll wound around the core member from the core member is advantageous in terms of, for example, easily separating and collecting the sheet material roll and reusing the core member.

[0005] An object of the present invention is to provide a winding support device and a method for recovering sheet material, which enable easy separation of a sheet material roll and a winding core member. [Means for solving the problem]

[0006] Various aspects of a support device and a sheet material recovery method that solve the above problems will be described below. The support device of aspect 1 is a support device used in a separation process for separating a winding core member for winding up sheet material from a sheet material roll wound around the winding core member, and is equipped with a deformation control member that supports the outer peripheral surface of the sheet material roll from both sides, thereby controlling deformation of the sheet material roll due to its own weight.

[0007] According to this configuration, in the separation process in which the winding core member and the sheet material roll are separated, the deformation of the sheet material roll due to its own weight is restricted by the deformation restriction member of the support device, thereby reducing the load applied from the sheet material roll to the winding core member.

[0008] In the support device of aspect 2, in the first aspect, the deformation restricting member may have a first deformation restricting member and a second deformation restricting member arranged at a distance from each other along the axial direction of the sheet material roll, and each of the first deformation restricting member and the second deformation restricting member may have a pair of support parts that support the outer circumferential surface of the sheet material roll from both sides and a connecting part that connects the pair of support parts. With this configuration, the deformation of the sheet material roll due to its own weight is further restricted by the first deformation restricting member and the second deformation restricting member of the support device, so that the load applied from the sheet material roll to the winding core member can be further suppressed.

[0009] The support device of aspect 3 may be in aspect 1 or aspect 2, further including a spacing member connected to the first deformation regulating member and the second deformation regulating member and configured to maintain a spacing between the first deformation regulating member and the second deformation regulating member in the axial direction of the sheet material roll. With this configuration, the first deformation regulating member and the second deformation regulating member can easily support a predetermined position of the sheet material roll.

[0010] The support device of aspect 4 may be any one of aspects 1 to 3, further comprising a support base that supports the outer circumferential surface of the sheet material roll at a position lower than the deformation restricting member, and the support base may include a top plate and a pair of anti-rolling members that are arranged on the top plate and prevent the sheet material roll from rolling. With this configuration, the sheet material roll can be stably supported on the support base of the support device, and therefore the separation process of separating the winding core member and the sheet material roll can be easily performed.

[0011] The support device of aspect 5 may be the same as that of aspect 1, including a main body having the deformation regulating member, the deformation regulating member including a pair of support parts supporting an outer peripheral surface of the sheet material roll from both sides, each of the pair of support parts having a structure in which a plurality of rollers whose rotation axes are inclined with respect to a horizontal plane are arranged along the axial direction of the sheet material roll, and the pair of support parts may support the sheet material roll so as to be transportable along the axial direction of the sheet material roll. With this configuration, the support step of supporting the sheet material roll on the support device can be easily performed.

[0012] In the support device of aspect 6, in aspect 5, the main body may further include a roller conveyor member that supports the sheet material roll from below and is capable of transporting the sheet material roll in the axial direction of the sheet material roll. With this configuration, the support step of supporting the sheet material roll on the support device can be performed more stably.

[0013] The support device of aspect 7 may further include a lifting mechanism for lifting the main body in aspect 5 or aspect 6. With this configuration, the sheet material roll can be easily supported on the main body of the support device.

[0014] The support device of aspect 8 may further include a cart unit for moving the main body unit in any one of aspects 5 to 7. According to this configuration, for example, the support device can be used to move a sheet material roll to a predetermined position.

[0015] The sheet material recovery method of aspect 9 includes a preparation step of preparing a core member for winding the sheet material, a winding step of winding the sheet material onto the core member, a support step of supporting the sheet material roll formed by winding the sheet material onto the core member in a support device, and a separation step of separating the sheet material roll from the core member while the sheet material roll is supported by the support device, and the support device may include a deformation control member that supports the outer peripheral surface of the sheet material roll from both sides to control deformation of the sheet material roll due to its own weight. Effect of the Invention

[0016] The present invention exhibits the effect of making it possible to easily separate the sheet material roll and the winding core member. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is an exploded perspective view showing a winding core member in the first embodiment. [Diagram 2] FIG. 2 is a perspective view showing a winding core member. [Diagram 3] FIG. 3 is a side view illustrating a preparation step of the winding core member. [Figure 4] FIG. 4 is a side view showing the winding core member. [Diagram 5] FIG. 5 is a perspective view illustrating the winding process. [Figure 6] FIG. 6 is a perspective view showing the support device, the core member, and the sheet material roll. [Figure 7] FIG. 7 is a perspective view illustrating the supporting step. [Figure 8] FIG. 8 is a side view showing the support device, the core member, and the sheet material roll. [Figure 9] FIG. 9 is a side view showing the sheet material roll and the winding core member. [Figure 10] FIG. 10 is a perspective view illustrating the first separation step. [Figure 11] FIG. 11 is a side view illustrating the operation of the support device. [Figure 12] FIG. 12 is a perspective view illustrating the second separation step. [Figure 13] FIG. 13 is a flow diagram illustrating a method for recovering the sheet material. [Figure 14] FIG. 14 is a front view showing a support device, a core member, and a sheet material roll in the second embodiment. [Figure 15] FIG. 15 is a perspective view showing a main body of the support device. [Figure 16] FIG. 16 is a side view illustrating the operation of the support device. [Figure 17] FIG. 17 is a front view illustrating the supporting step and the first separation step. [Figure 18] FIG. 18 is a front view illustrating the first separation step. [Figure 19] FIG. 19 is a front view illustrating the first separation step. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] [First embodiment] Hereinafter, a first embodiment of the support device and the sheet material recovery method will be described with reference to the drawings. Note that in the drawings, for the sake of convenience, some of the configurations may be shown exaggerated or simplified. Also, the dimensional ratios of each part may differ from the actual ones.

[0019] The supporting device is used in a separation process for separating a core member for winding the sheet material from a roll of the sheet material wound around the core member. First, an example of the core member will be described.

[0020] <Core material> 1 and 2, the winding core member 11 includes a shaft unit 12, a sleeve member 13, and a restricting member 14. Hereinafter, the X-axis in the drawings represents the horizontal direction along the axial direction of the winding core member 11. The X-axis also represents the horizontal direction along the axial direction of the sheet material roll. The Y-axis represents the horizontal direction perpendicular to the X-axis, and the Z-axis represents the direction perpendicular to the XY plane.

[0021] (shaft unit) The shaft unit 12 includes a shaft body 15 and a protruding mechanism 16. The shaft body 15 of the shaft unit 12 is driven to rotate by a driving device (not shown). The protruding mechanism 16 of the shaft unit 12 has a protruding portion 17 that can protrude from the outer circumferential surface of the shaft body 15. The protruding mechanism 16 protrudes a plurality of protruding portions 17 in the radial direction of the shaft body 15 from the outer circumferential surface of the shaft body 15 as shown in FIG. 4, in the state shown in FIG. 3. In detail, the protruding mechanism 16 includes a driving unit that uses a fluid pressure such as air pressure to cause the protruding portion 17 to protrude. The driving unit of the protruding mechanism 16 includes, for example, a tube that expands when air is supplied, and a supply unit that supplies air to the tube. The protruding portion 17 can be protruded by pressing the protruding portion 17 by the expansion of the tube in the driving unit. The protruding portion 17 can be accommodated inside the shaft body 15 by discharging the air in the tube.

[0022] (Sleeve material) As shown in Figs. 1 to 4, the sleeve member 13 is composed of a plurality of sleeve segments 13a divided in the circumferential direction of the shaft body 15. The sleeve member 13 in this embodiment is composed of four sleeve segments 13a. Each sleeve segment 13a has an elongated shape extending along the axial direction of the shaft body 15. The sleeve member 13 may be composed of a plurality of sleeve segments 13a other than four.

[0023] The above-mentioned protrusions 17 of the protrusion mechanism 16 are arranged in a plurality of rows in the circumferential direction of the shaft body 15 so as to be able to press any one of the plurality of sleeve segments 13a. Moreover, the protrusions 17 are arranged in a plurality of rows in the axial direction of the shaft body 15, i.e., along the axial direction of the plurality of sleeve segments 13a.

[0024] Examples of materials for the sleeve member 13 include resin materials and metal materials. From the viewpoint of good handleability, the sleeve member 13 is preferably made of a resin material. The bending strength of the resin material as defined in ASTM D790 is preferably within a range of 30 MPa or more and 120 MPa or less. The Rockwell hardness of the resin material as defined in ASTM D785 is preferably within a range of R50 or more and R150 or less. The sleeve member 13 is preferably made of ABS resin. The thickness of the sleeve member 13 is, for example, within a range of 5 mm or more and 20 mm or less.

[0025] (Regulation material) As shown in Figs. 1 to 4, the restricting member 14 is provided so as to surround the outer periphery of the multiple sleeve segments 13a. The restricting member 14 restricts the radial movement of the multiple sleeve segments 13a. As shown in Fig. 2, the restricting members 14 are provided on both sides of the sheet material 18 in the axial direction of the sleeve member 13. That is, the spacing dimension W1 between the pair of restricting members 14 is larger than the width dimension W2 of the sheet material 18.

[0026] 1, 3, and 4, the regulating member 14 of this embodiment includes a rotating shaft 14a that allows opening and closing of a portion of the circumferential direction of the regulating member 14. In more detail, the regulating member 14 includes the rotating shaft 14a, a first arm portion 14b, a second arm portion 14c, and a fixed member 14d.

[0027] The first arm portion 14b has a support end supported by the rotating shaft 14a and an openable / closable end. The second arm portion 14c also has a support end supported by the rotating shaft 14a and an openable / closable end. The first arm portion 14b and the second arm portion 14c are connected by the rotating shaft 14a. The open / close end of the first arm portion 14b and the open / close end of the second arm portion 14c have a through hole H1 into which the fixing member 14d is inserted in the closed state. Examples of the material of the regulating member 14 include metal materials and resin materials. The regulating member 14 is preferably made of a metal material from the viewpoint of increasing the rigidity and increasing the accuracy of regulating the movement of the multiple sleeve segments 13a. Examples of the metal material include stainless steel and aluminum.

[0028] (Assembling the core components) 1 to 3, to assemble the winding core member 11, first, a plurality of sleeve segments 13a are arranged on the outer periphery of the sleeve member 13. A restricting member 14 is attached to the outer periphery of the sleeve segments 13a arranged in this manner.

[0029] As shown in FIG. 4, the sleeve segments 13a are pressed by the protruding portions 17 of the protruding mechanism 16 so that the sleeve member 13 is expanded in diameter, and the sleeve segments 13a are fixed between the shaft body 15 and the regulating member 14. More specifically, the sleeve segments 13a are fixed by being pressed against the regulating member 14 by the protruding portions 17 of the protruding mechanism 16. The sleeve member 13 fixed in this manner is held in an expanded diameter state corresponding to the inner diameter of the regulating member 14. In this expanded diameter state of the sleeve member 13, the interval D between the sleeve member 13 and the shaft body 15 of the shaft unit 12 is preferably, for example, 5 mm or more, and more preferably 7 mm or more. The larger the interval D, the easier it is to remove the shaft body 15 from the sleeve member 13 after the sleeve member 13 is released from its fixed state. The upper limit of the interval D is not particularly limited, but is, for example, 50 mm or less.

[0030] Since the sleeve member 13 fixed as described above is connected to the shaft body 15, the sleeve member 13 rotates with the rotation of the shaft body 15. As shown in Fig. 5, the sheet material 18 is wound around the outer periphery of the rotating sleeve member 13, thereby obtaining a sheet material roll 19.

[0031] The multiple sleeve segments 13a can be released from fixation by retracting the multiple protrusions 17 of the protrusion mechanism 16 in the shaft unit 12. This allows the sleeve member 13 and the shaft body 15 (shaft unit 12) to be separated.

[0032] <Support device> Next, the supporting device will be described. 6 to 8, the support device 20 includes a deformation restriction member 21 that supports the outer circumferential surface of the sheet material roll 19 from both sides to restrict deformation of the sheet material roll 19 due to its own weight. The deformation restriction member 21 of the support device 20 in this embodiment has a first deformation restriction member 22 and a second deformation restriction member 23 that are arranged apart from each other along the axial direction of the sheet material roll 19.

[0033] The first deformation restricting member 22 has a pair of support parts 21a that support the outer circumferential surface of the sheet material roll 19 from both sides, and a connecting part 21b that connects the pair of support parts 21a. The second deformation restricting member 23 also has a pair of support parts 21a and a connecting part 21b like the first deformation supporting member. The connecting part 21b is disposed above the sheet material roll 19, for example.

[0034] The support device 20 further includes a spacing member 24 connected to the first deformation restricting member 22 and the second deformation restricting member 23. The spacing member 24 of the support device 20 maintains a spacing between the first deformation restricting member 22 and the second deformation restricting member 23 in the axial direction of the sheet material roll 19. The spacing member 24 is connected, for example, to the connecting portion 21b of the first deformation restricting member 22 and the connecting portion 21b of the second deformation restricting member 23. The spacing member 24 may be connected to the support portion 21a of the first deformation restricting member 22 and the support portion 21a of the second deformation restricting member 23. Examples of materials for the deformation restricting member 21 and the spacing member 24 include metal materials, resin materials, and wood materials.

[0035] The support device 20 further includes a support table 25 that supports the outer peripheral surface of the sheet material roll 19 at a position lower than the deformation restricting member 21. The support table 25 includes a top plate 25a and a pair of anti-rolling members 25b arranged on the top plate 25a. The top plate 25a has a flat upper surface. The pair of anti-rolling members 25b are arranged to prevent the sheet material roll 19 from rolling. The pair of anti-rolling members 25b have a shape that extends along the axial direction of the sheet material roll 19. Examples of the shape of the anti-rolling members 25b include a polygonal column shape such as a square column shape, a semi-cylindrical column shape, and the like.

[0036] <How to collect sheet material> Next, a method for recovering the sheet material 18 will be described. As shown in FIG. 13, the method for recovering the sheet material 18 includes a preparation step (step S1), a winding step (step S2), a supporting step (step S3), a first separation step (step S4), and a second separation step (step S5).

[0037] 2 to 4, in the preparation process of step S1, the above-mentioned winding core member 11 is prepared. In the preparation process of step S1 of the present embodiment, the winding start portion of sheet material 18 is connected to winding core member 11 by sandwiching the winding start portion of sheet material 18 between multiple protrusions 17 of protrusion mechanism 16 and sleeve member 13.

[0038] 5, in the winding process of step S2, the sheet material 18 is wound around the winding core member 11. The winding core member 11 is connected to a rotation drive device (not shown) and is thereby driven to rotate. In the winding process of step S2, a sheet material roll 19 is obtained in which the sheet material 18 is wound.

[0039] 6 to 8, in the supporting step of step S3, the sheet material roll 19 obtained in the winding step of step S2 is supported by a supporting device 20. More specifically, the sheet material roll 19 wound around the outer periphery of the winding core member 11 is placed on a supporting table 25 of the supporting device 20. Next, the deformation restricting member 21 of the supporting device 20 is attached to the sheet material roll 19.

[0040] As shown in Figures 9 to 12, in a first separation step of step S4 and a second separation step of step S5, the sheet material roll 19 and the winding core member 11 are separated. In the first separation step of step S4, first, as shown in Figure 9, the protruding portion 17 of the protruding mechanism 16 is retracted. This releases the fixation of the multiple sleeve segments 13a between the shaft main body 15 and the regulating member 14. Next, as shown in Figures 10 and 11, the shaft unit 12 is pulled out from the sleeve member 13. At this time, the regulating member 14 may be removed.

[0041] 11, when the sheet material roll 19 deforms due to its own weight after the first separation process of step S4, a load is applied to the sleeve member 13 of the winding core member 11. The sheet material roll 19 in this embodiment is supported by a support device 20. The support device 20 is provided with a deformation restriction member 21 that restricts deformation of the sheet material roll 19 due to its own weight by supporting the outer circumferential surface of the sheet material roll 19 from both sides. According to this configuration, the deformation restriction member 21 of the support device 20 restricts deformation of the sheet material roll 19 due to its own weight, so that the load applied from the sheet material roll 19 to the sleeve member 13 of the winding core member 11 can be suppressed.

[0042] 12, in the second separation process of step S5, the sleeve member 13 of the winding core member 11 is pulled out from the sheet material roll 19. At this time, as described above, the load applied from the sheet material roll 19 to the sleeve member 13 of the winding core member 11 can be reduced, so that the sleeve member 13 of the winding core member 11 can be easily pulled out from the sheet material roll 19.

[0043] By the second separation step of step S5, the sheet material roll 19 can be separated and collected. Furthermore, the preparation step of step S1 can be repeated using the sleeve member 13 separated in the second separation step of step S5. In this manner, the sleeve member 13 can be reused together with the shaft unit 12 and the regulating member 14.

[0044] <Sheet materials and their uses> Examples of the material of the sheet material 18 include resin, paper, etc. Examples of the resin include polyester resin, polyamide resin, polyolefin resin, etc. Examples of the polyester resin include polyethylene terephthalate, polybutylene terephthalate, etc. Examples of the polyamide resin include nylon 6, nylon 66, etc. Examples of the polyolefin resin include polyethylene, polypropylene, etc.

[0045] The thickness dimension of the sheet material 18 is, for example, within a range of 5 μm or more and 500 μm or less. The width dimension W2 of the sheet material 18 is, for example, within a range of 100 mm or more and 5000 mm or less. The length dimension of the sheet material 18 is, for example, within a range of 100 m or more and 10000 m or less. The support device 20 of this embodiment can be suitably used for applications such as restricting deformation due to the weight of a sheet material roll 19 on which a sheet material 18 having a length dimension of 300 m or more is wound.

[0046] The sheet material 18 can be used as a protective sheet material laminated on a long product. Examples of long products include glass films, resin films, and metal foils. Glass films are used as materials for devices that require light weight and bendability. The thickness of the glass film is preferably 0.3 mm or less, more preferably 0.1 mm or less, even more preferably 0.05 mm or less, and most preferably 0.035 mm or less. The lower limit of the thickness of the glass film is, for example, 0.005 mm or more. A glass film having such a thickness is called ultra-thin glass (UTG).

[0047] Examples of the glass constituting the glass film include soda glass, soda lime glass, borosilicate glass, aluminosilicate glass, and alkali-free glass. The glass film may be a glass film for chemical strengthening. Examples of the glass for chemical strengthening include alkali aluminosilicate glass and soda glass containing an alkali metal oxide as a glass composition. The alkali metal oxide contained in the alkali aluminosilicate glass is preferably at least one selected from Li2O, Na2O, and K2O. The glass for chemical strengthening is preferably an alkali aluminosilicate glass. The alkali aluminosilicate glass preferably contains, for example, SiO2: 50 to 80%, Al2O3: 5 to 25%, B2O3: 0 to 15%, Li2O: 0 to 20%, Na2O: 1 to 20%, and K2O: 0 to 10% by mass.

[0048] <Actions and Effects of the First Embodiment> Next, the operation and effects of the first embodiment will be described. (1-1) The support device 20 is used in a separation process for separating the winding core member 11 for winding the sheet material 18 from the sheet material roll 19 wound around the winding core member 11. The support device 20 includes a deformation restriction member 21 that restricts deformation of the sheet material roll 19 due to its own weight by supporting the outer circumferential surface of the sheet material roll 19 from both sides. According to this configuration, in the separation process for separating the winding core member 11 and the sheet material roll 19, the deformation restriction member 21 of the support device 20 restricts deformation of the sheet material roll 19 due to its own weight. Therefore, the load applied from the sheet material roll 19 to the winding core member 11 can be suppressed. Therefore, the sheet material roll 19 and the winding core member 11 can be easily separated.

[0049] (1-2) The deformation restricting member 21 of the support device 20 has a first deformation restricting member 22 and a second deformation restricting member 23 that are arranged at a distance from each other along the axial direction of the sheet material roll 19. Each of the first deformation restricting member 22 and the second deformation restricting member 23 has a pair of support parts 21a that support the outer circumferential surface of the sheet material roll 19 from both sides, and a connecting part 21b that connects the pair of support parts 21a. In this case, the deformation of the sheet material roll 19 due to its own weight is further restricted by the first deformation restricting member 22 and the second deformation restricting member 23 of the support device 20, so that the load applied from the sheet material roll 19 to the winding core member 11 can be further suppressed. Therefore, the sheet material roll 19 and the winding core member 11 can be more easily separated.

[0050] (1-3) The support device 20 further includes a spacing member 24 connected to the first deformation restricting member 22 and the second deformation restricting member 23. The spacing member 24 maintains the spacing between the first deformation restricting member 22 and the second deformation restricting member 23 in the axial direction of the sheet material roll 19. In this case, the first deformation restricting member 22 and the second deformation restricting member 23 can easily support a predetermined position of the sheet material roll 19. Therefore, for example, the sheet material roll 19 can be smoothly supported by the first deformation restricting member 22 and the second deformation restricting member 23.

[0051] (1-4) The supporting device 20 further includes a supporting base 25 that supports the outer circumferential surface of the sheet material roll 19 at a position lower than the deformation restricting member 21. The supporting base 25 includes a top plate 25a and a pair of rolling prevention members 25b that are arranged on the top plate 25a and prevent the sheet material roll 19 from rolling. In this case, the sheet material roll 19 can be stably supported on the supporting base 25 of the supporting device 20, so that the separation process of separating the winding core member 11 and the sheet material roll 19 can be easily performed.

[0052] (1-5) The method for recovering sheet material 18 includes a preparation step of step S1, a winding step of step S2, and a supporting step of step S3. In the supporting step of step S3, the sheet material roll 19 is supported by the supporting device 20. The method for recovering sheet material 18 includes a separation step of separating the sheet material roll 19 supported by the supporting device 20 from the winding core member 11. According to this method, as described in section (1-1) above, it becomes possible to easily separate the sheet material roll 19 from the winding core member 11.

[0053] (1-6) The winding core member 11 for winding the sheet material 18 includes a shaft unit 12 having a shaft body 15, a sleeve member 13 around whose outer periphery the sheet material 18 is wound, and a regulating member 14. The sleeve member 13 is composed of a plurality of sleeve segments 13a divided in the circumferential direction of the shaft body 15. The regulating member 14 is provided so as to surround the outer periphery of the plurality of sleeve segments 13a. The regulating member 14 regulates the radial movement of the plurality of sleeve segments 13a. The shaft unit 12 includes a protruding mechanism 16 that causes a plurality of protrusions 17 to protrude from the outer circumferential surface of the shaft body 15 in the radial direction of the shaft body 15. The plurality of protrusions 17 of the protruding mechanism 16 press the plurality of sleeve segments 13a so that the sleeve member 13 expands in diameter, thereby fixing the plurality of sleeve segments 13a between the shaft body 15 and the regulating member 14.

[0054] In this case, after the sheet material 18 is wound in a roll around the outer periphery of the sleeve member 13, the protruding portion 17 of the protruding mechanism 16 is retracted, thereby releasing the fixation of the multiple sleeve segments 13a between the shaft main body 15 and the regulating member 14. This makes it possible to extract the shaft unit 12 from the sleeve member 13. By extracting the shaft unit 12 in this manner, it is possible to secure space inside the sleeve member 13, so that the sleeve segments 13a can be easily extracted from the sheet material roll 19. This makes it possible to easily separate the sheet material roll 19 and the winding core member 11.

[0055] [Second embodiment] The second embodiment of the support device 20 and the method for recovering the sheet material 18 will be described, focusing on the differences from the first embodiment.

[0056] <Support device> As shown in Figs. 14 to 16, the support device 20 includes a main body 26 having a deformation restriction member 21. As shown in Figs. 15 and 16, the main body 26 of the deformation restriction member 21 includes a pair of support parts 21a that support the outer peripheral surface of the sheet material roll 19 from both sides. Each of the pair of support parts 21a includes a plurality of rollers R. The rotation axes A of the plurality of rollers R are inclined with respect to a horizontal plane. Each of the pair of support parts 21a has a structure in which the plurality of rollers R are arranged along the axial direction of the sheet material roll 19. The pair of support parts 21a supports the sheet material roll 19 so that the sheet material roll 19 can be conveyed along the axial direction of the sheet material roll 19. As shown in Fig. 16, the angle θ1 of the rotation axes A of the pair of support parts 21a is 45° with respect to a horizontal line along the Y axis when viewed from the axial direction of the sheet material roll 19. This angle θ1 can also be changed. The angle θ1 is preferably within a range of 15° to 90°.

[0057] The main body 26 of the supporting device 20 further has a roller conveyor member 26a that supports the sheet material roll 19 from below. The roller conveyor member 26a is capable of transporting the sheet material roll 19 along the axial direction of the sheet material roll 19. The roller conveyor member 26a is equipped with a plurality of rollers R. The rotation axes A of the plurality of rollers R extend along a horizontal direction perpendicular to the axial direction of the sheet material roll 19.

[0058] 14, the support device 20 further includes a lifting mechanism 27 that lifts and lowers the main body portion 26. The lifting mechanism 27 is configured to operate by fluid pressure such as hydraulic pressure. The support device 20 further includes a carriage portion 28 that moves the main body portion 26. The carriage portion 28 of this embodiment is capable of moving the lifting mechanism 27 together with the main body portion 26.

[0059] <How to collect sheet material> Next, a method for recovering the sheet material 18 will be described. 14, in the method for recovering sheet material 18 in the second embodiment, after the winding process in step S2, the sheet material roll 19 is supported from below using a lifting support device 29. Furthermore, a bearing portion (not shown) that rotatably supports one end of the winding core member 11 is moved away from the one end of the winding core member 11, so that the one end of the winding core member 11 becomes a free end. Next, the support device 20 is moved using the cart portion 28 of the support device 20 so as to be inserted below the sheet material roll 19. As a result, a part of the main body portion 26 of the support device 20 is positioned so as to overlap a part of the sheet material roll 19 in a plan view.

[0060] 17, the lifting mechanism 27 of the support device 20 raises the main body 26. This causes a portion of the sheet material roll 19 to be supported by a portion of the main body 26 of the support device 20. Then, as shown in FIG. 18, the sheet material roll 19 and the sleeve member 13 are transported so that the entire sheet material roll 19 is supported by the main body 26 of the support device 20 (supporting step S3).

[0061] 19, the support device 20 is moved in a direction away from the shaft unit 12 using the carriage portion 28 of the support device 20, thereby extracting the shaft unit 12 from the sleeve member 13 (first separation step of step S4). At this time, the regulating member 14 may be removed.

[0062] Here, the sheet material roll 19 after the first separation process in step S4 may be deformed due to its own weight, as indicated by the two-dot chain line in Fig. 16. The supporting device 20 of this embodiment includes a deformation restriction member 21 that restricts deformation of the sheet material roll 19 due to its own weight by supporting the outer circumferential surface of the sheet material roll 19 from both sides. According to this configuration, the deformation restriction member 21 of the supporting device 20 restricts deformation of the sheet material roll 19 due to its own weight, so that the load applied from the sheet material roll 19 to the sleeve member 13 of the winding core member 11 can be suppressed.

[0063] Next, in a second separation process of step S5, the sleeve member 13 of the winding core member 11 is pulled out from the sheet material roll 19, thereby separating the sheet material roll 19 from the winding core member 11. The sheet material roll 19 can be moved to a predetermined position by using a support device 20 having a dolly portion 28.

[0064] <Actions and Effects of the Second Embodiment> Next, the operation and effects of the second embodiment will be described. (2-1) The support device 20 of the second embodiment can also achieve the functions and effects described in section (1-1) of the first embodiment. The method for recovering the sheet material 18 of the second embodiment can also achieve the functions and effects described in section (1-5) of the first embodiment. The core member 11 of the second embodiment can also achieve the functions and effects described in section (1-6) of the first embodiment.

[0065] (2-2) In the supporting device 20, each of the pair of supporting parts 21a of the main body 26 has a structure in which a plurality of rollers R, whose rotation axes A are inclined with respect to the horizontal plane, are arranged along the axial direction of the sheet material roll 19. The pair of supporting parts 21a also support the sheet material roll 19 so as to be transportable along the axial direction of the sheet material roll 19. In this case, the supporting step of having the supporting device 20 support the sheet material roll 19 can be easily performed.

[0066] (2-3) The main body 26 of the supporting device 20 further includes a roller conveyor member 26a that supports the sheet material roll 19 from below and is capable of transporting the sheet material roll 19 in the axial direction of the sheet material roll 19. In this case, the supporting step of supporting the sheet material roll 19 on the supporting device 20 can be performed more stably.

[0067] (2-4) The support device 20 further includes a lifting mechanism 27 that lifts and lowers the main body 26. In this case, the sheet material roll 19 can be easily supported on the main body 26 of the support device 20.

[0068] (2-5) The support device 20 further includes a carriage unit 28 for moving the main body unit 26. In this case, for example, the support device 20 can be used to move the sheet material roll 19 to a predetermined position. In addition, for example, the shaft unit 12 can be extracted from the sleeve member 13 by utilizing the movement of the main body unit 26 using the carriage unit 28.

[0069] <Example of change> The above embodiment can be modified as follows: The above embodiment and the following modifications can be combined with each other to the extent that no technical contradiction occurs.

[0070] In the supporting device 20 of the first embodiment, the supporting table 25 may be omitted. For example, the sheet material roll 19 may be placed on the floor surface. In the support device 20 of the first embodiment, the spacing member 24 may be omitted. That is, the sheet material roll 19 can be supported by separately attaching the first deformation control member 22 and the second deformation control member 23 to the sheet material roll 19.

[0071] The spacing member 24 of the support device 20 in the first embodiment may have a spacing adjustment mechanism that adjusts the spacing between the first deformation restricting member 22 and the second deformation restricting member 23. The support device 20 of the first embodiment includes two deformation regulating members 21, the first deformation regulating member 22 and the second deformation regulating member 23, but may further include a third deformation regulating member. That is, the number of deformation regulating members 21 may be three or more. Note that in the support device 20 of the first embodiment, the number of deformation regulating members 21 may be changed to one.

[0072] In the supporting device 20 of the second embodiment, the cart unit 28 may be omitted. That is, the driving device that drives and rotates the core member 11 may be configured to be movable toward and away from the supporting device 20.

[0073] In the support device 20 of the second embodiment, the lifting mechanism 27 may be omitted. That is, the sheet material roll 19 may be supported by the support device 20 using a transfer device that transfers the sheet material roll 19 to the support device 20.

[0074] In the main body 26 of the support device 20 of the second embodiment, the roller conveyor member 26a may be omitted. Also, the roller conveyor member 26a may be changed to a belt conveyor member or a support member having a flat upper surface.

[0075] In the first and second embodiments, a winding core member other than the winding core member 11 may be used. The winding core member may have a structure that is deformable between an expanded diameter state and a contracted diameter state. That is, the sheet material roll 19 can be obtained by winding the sheet material 18 around the winding core member in the expanded diameter state. After the winding core member is brought to the contracted diameter state, the sheet material roll 19 can be separated from the winding core member by pulling out the winding core member from the sheet material roll 19.

[0076] In the preparation step of step S1, the start of winding of the sheet material 18 may be connected to the outer circumferential surface of the sleeve member 13 using an adhesive material such as an adhesive tape. [Explanation of symbols]

[0077] 11...Core member 18...Sheet material 19...Sheet material roll 20...Support device 21...Deformation control member 21a...Support part 21b...Connection part 22...First deformation restriction member 23...Second deformation restriction member 24...Spacing member 25...Support stand 25a…Tabletop 25b...Roll prevention member 26…Main body 26a...Roller conveyor member 27...Lifting mechanism 28…Truck section A…Rotation axis R…Roller

Claims

1. A support device used in a separation process for separating a core member for winding a sheet material from a roll of sheet material wound around the core member, comprising: a support device including a deformation restriction member that restricts deformation of the sheet material roll due to its own weight by supporting an outer peripheral surface of the sheet material roll from both sides.

2. The deformation suppressing member includes a first deformation suppressing member and a second deformation suppressing member that are spaced apart from each other along the axial direction of the sheet material roll, Each of the first deformation restricting member and the second deformation restricting member is A pair of support parts that support an outer peripheral surface of the sheet material roll from both sides; The support device according to claim 1 , further comprising a connecting portion that connects the pair of support portions.

3. The support device according to claim 2 , further comprising a spacing retaining member connected to the first deformation regulating member and the second deformation regulating member and configured to maintain a spacing between the first deformation regulating member and the second deformation regulating member in the axial direction of the sheet material roll.

4. The support device described in claim 1, further comprising a support base that supports the outer peripheral surface of the sheet material roll at a position lower than the deformation control member, the support base comprising a top plate and a pair of anti-rolling members arranged on the top plate to prevent the sheet material roll from rolling.

5. a main body having the deformation restricting member, The deformation restricting member includes a pair of support portions that support an outer peripheral surface of the sheet material roll from both sides, Each of the pair of support parts has a structure in which a plurality of rollers whose rotation axes are inclined with respect to a horizontal plane are arranged along the axial direction of the sheet material roll, The supporting device according to claim 1 , wherein the pair of supporting portions supports the sheet material roll so as to be transportable along an axial direction of the sheet material roll.

6. The support device according to claim 5 , wherein the main body portion further includes a roller conveyor member that supports the sheet material roll from below and is capable of transporting the sheet material roll in an axial direction of the sheet material roll.

7. The support device according to claim 5 , further comprising a lifting mechanism for lifting and lowering the main body portion.

8. The support device according to claim 5 , further comprising a carriage portion for moving the main body portion.

9. A method for recovering sheet material, comprising the steps of: a preparation step of preparing a core member for winding the sheet material; a winding step of winding the sheet material around the winding core member; a supporting step of supporting the sheet material roll obtained by winding the sheet material in the winding step on a supporting device; and a separation step of separating the sheet material roll from the core member while the sheet material roll is supported by the support device, The support device includes a deformation suppression member that supports an outer peripheral surface of the sheet material roll from both sides, thereby suppressing deformation of the sheet material roll due to its own weight.

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