Peeling device, manufacturing system and peeling method

Abstract

To provide a peeling device capable of properly adjusting a peel width of a portion-to-be-peeled of a fiber film without stopping manufacture in the manufacture of a product obtained by peeling a part of the fiber film from a base material.SOLUTION: A peeling device comprises a rotary brush, a movement driving part, a width detection part, and a control part. The rotary brush peels off a fiber film from a base material within a partial range in the width direction by rotating in contact with a coating film structure in conveying. The rotary brush is moved along the width direction by driving the movement driving part. The width detection part detects a peeled width along the width direction on a peeling portion where the fiber film is peeled from the base material. The control part controls the driving of the movement driving part based on the detection result of the peeled width of the peeling portion to adjust the position of the rotary brush in the width direction.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] FIELD OF THE DISCLOSURE Embodiments of the present invention relate to a stripping apparatus, a manufacturing system, and a stripping method. [Background technology]

[0002] In a coated structure in which a fiber membrane is formed on the surface of a substrate, a product may be manufactured by peeling off a part of the formed fiber membrane from the substrate. For example, in an electrode group such as a battery, when one of a pair of electrodes (positive and negative electrodes) is integrally formed with a separator, a raw material liquid is applied to the electrode (positive or negative electrode) that serves as the substrate, and a fiber membrane that serves as a separator is formed on the surface of the electrode. Then, the formed fiber membrane is peeled off from the substrate in a partial range in the width direction of the substrate (width direction of the coated structure), thereby manufacturing a separator-integrated electrode as a product. A rotating brush is used to peel off a part of the fiber membrane from the substrate. In this case, the rotating brush is brought into contact with the coated structure being transported from one side in the thickness direction of the coated structure, and the rotating brush is rotated in a state in which the rotating brush is in contact with the coated structure (fiber membrane), thereby peeling off the fiber membrane.

[0003] In a manufacturing system for manufacturing a product by peeling off a part of a fiber film from a transported coated structure, the transport position of the coated structure in the width direction may change over time on the transport line along which the coated structure is transported, for example, by shifting the transport position of the coated structure in the width direction from the initial position. In the manufacturing system, it is required that the peeling width along the width direction at the peeled portion where the fiber film is peeled off from the substrate falls within a desired range, regardless of the transport position of the coated structure in the width direction. For example, it is required to keep the peeling width of the peeled portion within a desired range by adjusting the position of the rotating brush in the width direction in accordance with the transport position of the coated structure in the width direction.

[0004] In addition, the manufacturing system is required to be able to appropriately adjust the peel width of the peel region so that the peel width of the peel region falls within a desired range without stopping the manufacturing of the product. For example, it is required to be able to appropriately adjust the peel width of the peel region without stopping the manufacturing of the product by making it possible to adjust the position of the rotating brush in the width direction without manual work by an operator. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-56189 A Summary of the Invention [Problem to be solved by the invention]

[0006] The problem to be solved by the present invention is to provide a peeling device, a manufacturing system, and a peeling method that, in the manufacture of products by peeling a portion of a fibrous membrane from a substrate, enable appropriate adjustment of the peel width of the peeled portion of the fibrous membrane without stopping the manufacture. [Means for solving the problem]

[0007] The peeling device of the embodiment peels off a part of a fiber membrane from a substrate in a coated structure having a fiber membrane formed on the surface of the substrate, and includes a rotating brush, a moving drive unit, a width detection unit, and a control unit. The rotating brush rotates in contact with the coated structure being transported, thereby peeling off the fiber membrane from the substrate in a part of the width direction of the coated structure. The rotating brush moves along the width direction by driving the moving drive unit. The width detection unit detects the peeling width along the width direction for a peeled portion where the fiber membrane has been peeled off from the substrate by the rotating brush. The control unit controls the driving of the moving drive unit based on the detection result of the peeling width of the peeled portion, and adjusts the position of the rotating brush in the width direction. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a block diagram illustrating a manufacturing system according to a first embodiment. [Diagram 2] FIG. 2 is a schematic diagram illustrating a coated structure viewed from one side in the thickness direction, illustrating an example of a film peeling process by the peeling unit according to the first embodiment. [Diagram 3] FIG. 3 is a schematic diagram illustrating a coated structure in a cross section perpendicular or substantially perpendicular to the longitudinal direction, for explaining an example of a film peeling process by the peeling unit according to the first embodiment. [Figure 4] FIG. 4 is a schematic view showing the configuration of the peeling device according to the first embodiment. [Diagram 5] FIG. 5 is a perspective view illustrating an example of a configuration of a peeling assembly of the peeling device according to the first embodiment. As illustrated in FIG. [Figure 6] FIG. 6 is a flowchart illustrating an example of a process for adjusting the position of a rotating brush of one stripping assembly in the width direction, which is performed by the control unit in the first embodiment. [Figure 7] FIG. 7 is a schematic diagram illustrating an example of correcting the position of the rotating brush in the width direction by the process of adjusting the position of the rotating brush in the width direction in the first embodiment. [Figure 8] FIG. 8 is a schematic diagram illustrating an example of an internal configuration of a housing in the peeling assembly of the peeling device according to the first embodiment. [Figure 9] FIG. 9 is a schematic diagram showing an example of the configuration of a blade member provided inside the housing of the peeling assembly in the example of FIG. [Figure 10] FIG. 10 is a perspective view that illustrates an example of the configuration of a tip cutting edge portion in the example of the blade member in FIG. [Figure 11] FIG. 11 is a perspective view that illustrates an example of the configuration of the tip cutting edge portion of the example blade member of FIG. 9, which is different from that of FIG. [Figure 12] FIG. 12 is a block diagram illustrating an example of a control system of the separation apparatus according to the first modified example. [Figure 13]FIG. 13 is a flowchart illustrating an example of a management process for the wear state of the rotating brush, which is performed by the control unit in the first modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, embodiments will be described with reference to the drawings.

[0010] (First embodiment) First, a first embodiment will be described. FIG. 1 is a block diagram showing an example of a manufacturing system 1 according to the first embodiment. In this embodiment, a coated structure (strip) in which a fiber membrane is formed on the surface of a substrate is manufactured as a product using the manufacturing system 1. An example of a coated structure manufactured as a product is a separator-integrated electrode. The separator-integrated electrode is used, for example, in an electrode group of a battery. In the separator-integrated electrode, a fiber membrane that serves as a separator is formed on the surface of an electrode (positive electrode or negative electrode) that serves as a substrate. In the separator-integrated electrode, the fiber membrane is formed in a state in which there is a portion of the substrate (electrode) that is not covered with the fiber membrane.

[0011] The manufacturing system 1 of the example of FIG. 1 includes a conveying line 2, a film forming device 3, and a peeling device 4. The film forming device 3 includes a coating unit 5 and a drying unit 6, and the peeling device 4 includes a peeling unit 7 and an inspection unit 8. The conveying line 2 conveys a substrate and a coated structure in which a fiber film is formed on the surface of the substrate. In one example, the conveying line 2 conveys the substrate and the coated structure in a roll-to-roll manner. In this case, the substrate wound on a delivery reel (not shown) is delivered to the conveying line 2, and the substrate delivered from the delivery reel is conveyed from the upstream side to the downstream side on the conveying line 2. Then, on the conveying line 2, a fiber film is formed on the surface of the substrate being conveyed, and a coated structure that becomes a product is formed. Then, the coated structure conveyed through the conveying line 2 is wound up on a take-up reel (not shown).

[0012] In one example shown in FIG. 1, the coating unit 5, drying unit 6, peeling unit 7, and inspection unit 8 are arranged in this order from the upstream side on the conveying line 2. Therefore, on the conveying line 2, the conveyed substrate passes through the coating unit 5, drying unit 6, peeling unit 7, and inspection unit 8 in this order. In one example shown in FIG. 1, a film formation process is performed by the film formation device 3 to form a fibrous film on the surface of the substrate being conveyed. Therefore, the coating unit 5 and the drying unit 6 are arranged upstream of the conveying line 2 with respect to the peeling device 4. Then, a film formation process is performed upstream of the conveying line 2 with respect to the peeling device 4 to form a fibrous film on the surface of the substrate.

[0013] In the film forming apparatus 3, the coating unit 5 applies the raw material liquid to the surface of the substrate being transported on the transport line 2. The substrate to which the raw material liquid has been applied by the coating unit 5 is transported to the drying unit 6. The drying unit 6 dries the raw material liquid applied by the coating unit 5. In the film forming apparatus 3, a film forming process including application of the raw material liquid by the coating unit 5 and drying of the raw material liquid by the drying unit 6 is performed, thereby forming a fibrous film on the surface of the substrate and forming a coated structure. In the film forming apparatus 3, the drying unit 6 is disposed downstream of the transport line 2 from the coating unit 5. Therefore, drying of the raw material liquid is performed downstream of the transport line 2 from the coating unit 5.

[0014] The raw material liquid to be applied to the substrate is produced by dissolving an organic substance in a solvent. The organic substance used in the raw material liquid may be one or more selected from the following: polyolefin, polyether, polyimide, polyketone, polysulfone, cellulose, polyvinyl alcohol (PVA), polyamide, polyamideimide, and polyvinylidene fluoride (PVdf). Examples of polyolefin include polypropylene (PP) and polyethylene (PE).

[0015] In addition, the solvent for dissolving the organic substance in the raw material liquid may be any one of dimethylacetamide (DMAc), dimethylsulfoxide (DMSO), N,N-dimethylformamide (DMF), N-methylpyrrolidone (NMP), acetone, dimethoxyethylene, toluene, tetrahydrofuran, water, alkanes, ketones, esters, alcohols, ethers, etc. In the raw material liquid, the organic substance is dissolved in the solvent at a concentration of, for example, 5% by mass or more and 60% by mass or less.

[0016] In one example, the coating unit 5 includes one or more coating heads (not shown), and the raw material liquid is supplied to each of the coating heads. In this case, the coating unit 5 includes a tank and a supply drive unit (neither of which is shown) as a supply source of the raw material liquid, and the raw material liquid is stored in the tank. The supply drive unit is composed of, for example, a supply pump, and the raw material liquid is supplied from the tank to each of the coating heads by driving the supply drive unit. Then, each of the coating heads applies the raw material liquid to the surface of the substrate by ejecting the raw material liquid supplied toward the substrate being transported.

[0017] Each of the coating heads ejects the raw material liquid toward the substrate, for example, by electrospinning (also called electrospinning or electrospinning). In this case, the coating unit 5 includes a power source (not shown) such as a DC power source, and the power source applies a voltage to each of the coating heads, for example, to generate a potential difference between the substrate being transported and each of the coating heads. As a result, the supplied raw material liquid is charged by the applied voltage in each of the coating heads, and each of the coating heads ejects the charged raw material liquid toward the substrate.

[0018] In addition, when the raw material liquid is discharged from each of the coating heads by the electrospinning method, a voltage may be applied to either the supply source of the raw material liquid to the coating head or the supply path of the raw material liquid between the supply source and the coating head by the above-mentioned power source or the like to charge the raw material liquid. In this case, the charged raw material liquid is discharged from each of the coating heads toward the substrate. In addition, the discharge of the raw material liquid from the coating heads may be performed by a method other than the electrospinning method. In one example, the raw material liquid is discharged from each of the coating heads to the substrate by a solution blow method instead of the electrospinning method. In addition, in the coating unit 5, the raw material liquid may be applied to the substrate by a method other than the discharge of the raw material liquid from the coating head. In one example, in the coating unit 5, the substrate is transported through a liquid tank in which the raw material liquid is stored, and the raw material liquid is applied to the substrate by electrochemical deposition.

[0019] The drying unit 6 dries the raw material liquid applied to the substrate by at least one of blowing air and heating. At this time, the raw material liquid is dried by volatilizing the solvent contained in the raw material liquid. When drying the raw material liquid by blowing air, the drying unit 6 includes a blower (not shown) and supplies dry gas or the like from the blower to the substrate being transported by blowing air from the blower, thereby drying the raw material liquid applied to the substrate. At this time, heated gas or the like may be supplied from the blower to the substrate as hot air.

[0020] In addition, when drying the raw material liquid by heating, the drying unit 6 includes a heater (not shown) such as an infrared heater, and dries the raw material liquid applied to the substrate by heating from the heater. In one example, in the drying unit 6, the raw material liquid applied to the substrate may be dried by both air blowing from a blower and heat from a heater.

[0021] In the manufacturing system 1, a coated structure having a fibrous film formed on the surface of a substrate is carried into the peeling unit 7 of the peeling device 4. The peeling unit 7 peels off a part of the fibrous film formed by the film forming device 3 from the substrate in the coated structure being transported. That is, the peeling unit 7 performs a film peeling process in which a part of the fibrous film is peeled off from the substrate. The inspection unit 8 inspects the coated structure that has been subjected to the film peeling process. Then, the peeling device 4 carries out, as a product, the coated structure from which a part of the fibrous film has been peeled off by the film peeling process in the peeling unit 7 and which has been inspected by the inspection unit 8.

[0022] 2 and 3 illustrate an example of a film peeling process by the peeling unit 7. In each of FIGS. 2 and 3, the coated structure 10 in which the fiber film 12 is formed on the surface of the substrate 11 is shown in a state before the film peeling process and in a state after the film peeling process. As shown in FIGS. 2 and 3, the substrate 11 and coated structure 10 being transported on the transport line 2 are defined in a length direction (direction indicated by arrow L), a width direction (direction indicated by arrow B) intersecting (perpendicular or approximately perpendicular) with respect to the length direction, and a thickness direction (direction indicated by arrow T) intersecting (perpendicular or approximately perpendicular) with respect to both the length direction and the width direction. In the substrate 11 and coated structure 10, the dimension along the length direction is larger than the dimension along the width direction, and the dimension along the width direction is larger than the dimension along the thickness direction. FIG. 2 shows the coated structure 10 as viewed from one side in the thickness direction, and FIG. 3 shows the coated structure 10 in a cross section perpendicular or approximately perpendicular to the length direction.

[0023] The substrate 11 has a pair of main surfaces 13, 14. In the substrate 11, the main surface (first main surface) 13 faces one side in the thickness direction, and the main surface (second main surface) 14 faces the opposite side to the side to which the main surface 13 faces in the thickness direction. That is, the pair of main surfaces 13, 14 face opposite sides to each other in the thickness direction. In addition, the substrate 11 has a pair of substrate edges 15, 16 formed thereon, each of which extends along the length direction. In the substrate 11, the substrate edge (first substrate edge) 15 is an edge on one side in the width direction, and the substrate edge (second substrate edge) 16 is an edge on the opposite side to the substrate edge 15 in the width direction.

[0024] 2 and 3, a fiber membrane 12 is formed on both of a pair of main surfaces 13, 14 of a substrate 11 by a membrane formation process using the membrane formation device 3. Then, on each of the main surfaces 13, 14, a fiber membrane 12 is formed across the entire width (entire dimension) in the width direction between substrate edges 15, 16 by the membrane formation process. Then, in the coated structure 10, a membrane peeling process using the peeling unit 7 peels off the fiber membrane 12 formed by the membrane formation process from the substrate 11 in a partial range in the width direction of the substrate 11 (width direction of the coated structure 10).

[0025] 2 and 3, the membrane peeling process peels off the fiber membrane 12 from the substrate 11 at the substrate edge 15 and the vicinity of the substrate edge 15 on each of the main surfaces 13 and 14. Thus, the membrane peeling process peels off the fiber membrane 12 over a range between the substrate edge 15 and the membrane edge 17 in the width direction on each of the main surfaces 13 and 14. As a result, a peeled region 18 is formed in which the fiber membrane 12 is peeled off from the substrate 11 over a range between the substrate edge 15 and the membrane edge 17 in the width direction on each of the main surfaces 13 and 14. Here, when a separator-integrated electrode is manufactured as a product, the peeled region 18 of the substrate 11 forms a current collecting tab of the electrode.

[0026] In addition, even if a membrane peeling process is performed on each of the main surfaces 13 and 14 of the substrate 11, the fiber membrane 12 is coated on the substrate 11 except for the peeled portion 18. In the example shown in Fig. 2 and Fig. 3, even if a membrane peeling process is performed, the fiber membrane 12 is coated on the substrate 11 over the range between the membrane edge 17 and the substrate edge 16 in the width direction on each of the main surfaces 13 and 14. The membrane edge 17 is formed by performing a membrane peeling process, and in the fiber membrane 12 of the coated structure 10 that has been subjected to a membrane peeling process, the edge on the side closer to the substrate edge 15 in the width direction is formed by the membrane edge 17. In the coated structure 10 that has been subjected to a membrane peeling process, the boundary of the peeled portion 18 with respect to the portion where the fiber membrane 12 is coated on the substrate is formed by the membrane edge 17.

[0027] In one example, the fiber membrane 12 is formed by the membrane formation process only on one of the pair of principal surfaces 13, 14. In this case as well, the fiber membrane 12 is formed by the membrane formation process across the entire width in the width direction between the substrate edges 15, 16 on the principal surface (13 or 14) on which the membrane is formed. Then, by carrying out the membrane peeling process on the principal surface (13 or 14) on which the fiber membrane 12 is formed, the fiber membrane 12 is peeled off across the range between the substrate edge 15 and the membrane edge 17 in the width direction, and a peeled region 18 is formed across the range between the substrate edge 15 and the membrane edge 17 in the width direction.

[0028] FIG. 4 is a schematic diagram showing the configuration of the peeling device 4 including the peeling unit 7 and the inspection unit 8. In the state shown in FIG. 4, the coated structure 10 on which the fiber film 12 is formed by the film forming process by the film forming device 3 is conveyed toward the downstream side in the conveying line 2 (arrow F). Here, in the conveying line 2, the conveying direction is the downstream side, and the opposite direction to the conveying direction is the upstream side. In addition, in the conveying line 2, a width direction that intersects with the conveying direction (perpendicular or approximately perpendicular) is defined. In the conveying line 2, the direction that intersects with both the conveying direction and the width direction (perpendicular or approximately perpendicular) is also referred to as the height direction. In FIG. 4, the direction that is perpendicular or approximately perpendicular to the paper surface corresponds to the width direction of the conveying line 2.

[0029] 4 and other figures, on the conveying line 2, the substrate 11 and the coated structure 10 are conveyed with the length direction of the coated structure 10 (substrate 11) aligned along the conveying direction of the conveying line 2 and the width direction of the coated structure 10 (substrate 11) aligned along the width direction of the conveying line 2. For this reason, the substrate 11 and the coated structure 10 are conveyed with the thickness direction of the coated structure 10 (substrate 11) intersecting (orthogonal or approximately orthogonal) both the conveying direction and the width direction of the conveying line 2, i.e., with the thickness direction of the coated structure 10 aligned along the height direction of the conveying line 2.

[0030] Further, a plurality of transport rolls 21 are arranged on the transport line 2, and each of the transport rolls 21 supports the transported coated structure 10 and substrate 11. In the portion of the transport line 2 passing through the peeling device 4, each of the transport rolls 21 contacts the coated structure 10 from one side in the thickness direction of the coated structure 10 (height direction of the transport line 2) and supports the coated structure 10 being transported.

[0031] The peeling unit 7 includes a peeling assembly 22, and in the example of FIG. 4, two peeling assemblies 22A and 22B are provided as the peeling assembly 22. In the conveying line 2, the peeling assemblies 22A and 22B are arranged apart from each other in the conveying direction. FIG. 5 is a perspective view showing an example of the configuration of the peeling assembly 22. In the example of FIG. 4, each of the two peeling assemblies 22A and 22B has the same configuration as the example of FIG. 5. In the state shown in FIG. 5, the coating structure 10 is conveyed toward the downstream side in the conveying line 2 (arrow F). In FIG. 5, the direction along the arrow B corresponds to the width direction of the coating structure 10 and corresponds to the width direction of the conveying line 2.

[0032] As shown in FIGS. 4 and 5, each of the peeling assemblies 22 includes a rotating brush 23. In each of the peeling assemblies 22, the rotating brush 23 can rotate about a rotation axis P. In one example shown in FIGS. 4 and 5, in each of the peeling assemblies 22, the rotation axis P of the rotating brush 23 intersects (is perpendicular or substantially perpendicular to) the width direction of the coated structure 10 (the width direction of the conveying line 2). In each of the peeling assemblies 22, the rotation axis P of the rotating brush 23 intersects with the thickness direction of the coated structure 10 being conveyed. In one example, in each of the peeling assemblies 22, the rotation axis P of the rotating brush 23 may be configured to be aligned with the width direction of the coated structure 10 (the width direction of the conveying line 2). In this case, the dimension of the rotating brush 23 in the direction along the rotation axis P needs to be approximately the same as the peeling width described below, or larger than the peeling width.

[0033] In each of the peeling assemblies 22, the rotating brush 23 contacts the coating structure 10 (fiber film 12) being conveyed from one side in the thickness direction of the coating structure 10. In an example of FIG. 4, in the conveying line 2, as the conveying roll 21, the conveying roll 21A is arranged to face the rotating brush (first rotating brush) 23 of the peeling assembly 22A, and the conveying roll 21B is arranged to face the rotating brush (second rotating brush) 23 of the peeling assembly 22B. Then, the coating structure 10 is conveyed through between the conveying roll 21A and the rotating brush 23 of the peeling assembly 22A, and is sandwiched between the conveying roll 21A and the rotating brush 23 of the peeling assembly 22A. In addition, the coating structure 10 is conveyed through between the conveying roll 21B and the rotating brush 23 of the peeling assembly 22B, and is sandwiched between the conveying roll 21B and the rotating brush 23 of the peeling assembly 22B.

[0034] The rotating brush 23 of the peeling assembly 22A contacts the coating structure 10 from the side where the main surface 13 faces in the thickness direction of the coating structure 10. The rotating brush 23 of the peeling assembly 22B contacts the coating structure 10 from the side where the main surface 14 faces in the thickness direction of the coating structure 10. In each of the peeling assemblies 22, the rotating brush 23 does not contact the coating structure 10 conveyed over the entire width in the width direction, but contacts the coating structure 10 only in a part of the width direction. In the example of FIG. 5, in each of the peeling assemblies 22, the rotating brush 23 contacts the coating structure 10 only at the substrate edge 15 and the portion near the substrate edge 15 in the width direction.

[0035] Each of the peeling assemblies 22 includes a housing 25, and in each of the peeling assemblies 22, the rotating brush 23 is housed in an internal cavity of the housing 25. Also, in each of the peeling assemblies 22, an opening 26 is formed that opens the internal cavity of the housing 25 to the outside. In each of the peeling assemblies 22, the rotating brush 23 comes into contact with the coating structure 10 being transported at the opening 26 of the housing 25.

[0036] Each of the stripping assemblies 22 includes a rotation drive unit 27, and the rotation drive unit 27 of each of the stripping assemblies 22 includes a drive member such as an electric motor. In each of the stripping assemblies 22, the drive member is driven in the rotation drive unit 27, whereby a drive force for rotationally driving the rotating brush 23 is transmitted to the rotating brush 23. As a result, in each of the stripping assemblies 22, the rotating brush 23 rotates around the rotation axis P (arrow R in FIGS. 4 and 5).

[0037] In each of the peeling assemblies 22, the rotating brush 23 rotates while being in contact with the transported coated structure 10, thereby peeling off the fiber membrane 12 from the substrate 11 in a partial range in the width direction of the coated structure 10. At this time, in each of the peeling assemblies 22, the rotating brush 23 peels off the fiber membrane 12 from the substrate 11 only at the substrate edge 15 and the portion in the vicinity of the substrate edge 15 in the width direction.

[0038] Here, in the peeling assembly 22A, the rotating brush (first rotating brush) 23 is rotated while in contact with the coating structure 10, so that the fibrous film (first fibrous film) 12 formed on the main surface (first main surface) 13 is peeled off in a partial range in the width direction. Therefore, a peeled portion (first peeled portion) 18 is formed on the main surface 13 by the peeling of the fibrous film 12 by the rotating brush 23 of the peeling assembly 22A. Also, in the peeling assembly 22B, the rotating brush (second rotating brush) 23 is rotated while in contact with the coating structure 10, so that the fibrous film (second fibrous film) 12 formed on the main surface (second main surface) 14 is peeled off in a partial range in the width direction. Therefore, a peeled portion (second peeled portion) 18 is formed on the main surface 14 by the peeling of the fibrous film 12 by the rotating brush 23 of the peeling assembly 22B.

[0039] In this embodiment, each of the peeling assemblies 22 includes a moving drive unit 28, and each of the moving drive units 28 includes a drive member such as an electric motor. In each of the peeling assemblies 22, the moving drive unit 28 drives the drive member, thereby transmitting a drive force for moving the rotating brush 23 to the rotating brush 23. In each of the peeling assemblies 22, the drive force is transmitted from the moving drive unit 28 to move the rotating brush 23 along the width direction of the coated structure 10 (the width direction of the conveyor line 2), and the position of the rotating brush 23 in the width direction of the coated structure 10 changes (arrow M in FIG. 5 ).

[0040] As shown in FIG. 4 and other figures, the peeling device 4 includes a control unit 30. The control unit 30 controls the overall operation of the peeling device 4 and controls the film peeling process by the peeling unit 7. The control unit 30 includes a processor or integrated circuit (control circuit) including a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array), and a storage medium such as a memory. The control unit 30 may include only one integrated circuit or the like, or may include multiple integrated circuits or the like. The control unit 30 performs processing by executing a program or the like stored in a storage medium or the like.

[0041] The processing by the control unit 30 described below may be performed by an integrated circuit of one computer or by a combination of integrated circuits of multiple computers. The processing by the control unit 30 described below may also be performed by a server in a cloud environment. The control unit 30 controls the driving of the movement drive units 28 of each of the peeling assemblies 22. As a result, in each of the peeling assemblies 22, the position of the rotating brush 23 in the width direction of the coated structure 10 (conveyor line 2) is adjusted by the control unit 30.

[0042] As shown in Fig. 4, the inspection unit 8 of the peeling device 4 includes a width detection section 31. The width detection section 31 detects a peeling width, which is a dimension along the width direction of the coated structure 10, for a peeled region 18 where the fiber membrane 12 is peeled off from the substrate 11 by the peeling unit 7. In the example of Fig. 4, the width detection section 31 detects the peeling width for each of the peeled region (first peeled region) 18 formed on the main surface (first main surface) 13 by the rotating brush (first rotating brush) 23 of the peeling assembly 22A and the peeled region (second peeled region) 18 formed on the main surface (second main surface) 14 by the rotating brush (second rotating brush) 23 of the peeling assembly 22B.

[0043] In one example of FIG. 4, the width detection unit 31 includes a photographing unit 32 and an image processing unit 33, and two photographing units 32A and 32B are provided as the photographing unit 32. Each of the photographing units 32 includes a video camera or a camera. Each of the photographing units 32 may include an image sensor including a CMOS or a CCD. The image processing unit 33 includes a processor such as an image processor, and includes a CPU, an ASIC, or an FPGA. In the conveying line 2, each of the photographing units 32 photographs the coated structure 10 being conveyed downstream of the peeling unit 7, that is, downstream of the peeling assembly 22. In one example of FIG. 4, the photographing unit (first photographing unit) 32A photographs at least the peeled portion 18 formed on the main surface 13 and its vicinity, and the photographing unit (second photographing unit) 32B photographs at least the peeled portion 18 formed on the main surface 14 and its vicinity.

[0044] The image processing unit 33 performs image processing on the images captured by each of the photographing units 32. In one example, the image processing unit 33 performs image processing to identify the substrate edge 15 and the film edge 17 in the images captured by each of the photographing units 32. Then, the image processing unit 33 calculates the distance between the substrate edge 15 and the film edge 17 as the peel width. The image processing unit 33 performs image processing on the images captured by the photographing unit 32A to calculate the peel width of the peeled region 18 formed on the main surface 13. Then, the image processing unit 33 performs image processing on the images captured by the photographing unit 32B to calculate the peel width of the peeled region 18 formed on the main surface 14. Thereby, a detection value Wr is detected for the peel width of the peeled region 18 formed on each of the main surfaces 13 and 14.

[0045] The control unit 30 acquires the detection value Wr and the like as detection results for the peeling width of the peeled region 18 formed on each of the principal surfaces 13 and 14. The control unit 30 controls the driving of the movement drive unit (first movement drive unit) 28 of the peeling assembly 22A based on the detection result for the peeling width of the peeled region (first peeling region) 18 of the principal surface (first principal surface) 13. As a result, the position of the rotating brush (first rotating brush) 23 of the peeling assembly 22A in the width direction of the coated structure 10 is adjusted based on the detection result for the peeling width of the peeled region 18 of the principal surface 13. The control unit 30 also controls the driving of the movement drive unit (second movement drive unit) 28 of the peeling assembly 22B based on the detection result for the peeling width of the peeled region (second peeling region) 18 of the principal surface (second principal surface) 14. As a result, based on the detection result of the peeling width of the peeled region 18 on the main surface 14, the position of the rotating brush (second rotating brush) 23 of the peeling assembly 22B in the width direction of the coated structure 10 is adjusted.

[0046] In addition, when the fiber film 12 is formed only on the main surface 13, the peeling unit 7 is provided with only the peeling assembly 22A, and the width detection unit 31 is provided with only the photographing unit 32A. In this case, too, the driving of the movement driving unit 28 of the peeling assembly 22A is controlled based on the detection result of the peeling width of the peeling region 18 on the main surface 13, and the position of the rotating brush 23 of the peeling assembly 22A in the width direction of the coated structure 10 is adjusted. In addition, when the fiber film 12 is formed only on the main surface 14, the peeling unit 7 is provided with only the peeling assembly 22B, and the width detection unit 31 is provided with only the photographing unit 32B. In this case, too, the driving of the movement driving unit 28 of the peeling assembly 22B is controlled based on the detection result of the peeling width of the peeling region 18 on the main surface 14, and the position of the rotating brush 23 of the peeling assembly 22B in the width direction of the coated structure 10 is adjusted.

[0047] While the rotating brush 23 of the peeling assembly 22 is continuously peeling the fiber membrane 12 from the transported coated structure 10, the width detection unit 31 detects the peel width of each of the peeled regions 18 on the main surfaces 13 and 14 once at regular time intervals, i.e., once at each sampling period. Therefore, the detection value Wr is detected for the peel width of each of the peeled regions 18 on the main surfaces 13 and 14 at regular time intervals. Then, in the transported coated structure 10, the peel width of each of the peeled regions 18 on the main surfaces 13 and 14 is detected once for each inspection length Xd in the length direction (transport direction). That is, in the transported coated structure 10, the detection value Wr is detected for the peel width of each of the peeled regions 18 on the main surfaces 13 and 14 for each inspection length Xd.

[0048] As described above, in this embodiment, the peel width of each of the peeled regions 18 on the principal surfaces 13 and 14 is detected once at regular time intervals, i.e., once for each inspection length Xd, and a detection value Wr is detected. For this reason, the width detection unit 31 detects the change over time (time history) of the peel width of each of the peeled regions 18 on the principal surfaces 13 and 14. Then, the control unit 30 acquires the change over time of the peel width of each of the peeled regions 18 on the principal surfaces 13 and 14 as a detection result in addition to the detection value Wr.

[0049] 6 is a flow chart showing an example of an adjustment process of the position of the rotating brush 23 of the peeling assembly 22A in the width direction, which is performed by the control unit 30 in this embodiment. The process of the example of FIG. 6 is performed every time a detection is performed on the peel width of the peeled region 18 formed on the main surface 13 while the fiber membrane 12 is continuously peeled by the rotating brush 23 on the transported coated structure 10. When the process of the example of FIG. 6 is started, the control unit 30 obtains a detection result on the peel width of the peeled region 18 on the main surface 13 (S101). At this time, the control unit 30 obtains the detection value Wr of the most recent detection, as well as the time change (time history) of the peel width of the peeled region 18.

[0050] Then, the control unit 30 calculates a moving average value Wrave of the peeled width in the most recent reference number of detections N based on the detection result of the peeled width of the peeled region 18 on the main surface 13 (S102). Here, the reference number of detections N is a natural number equal to or greater than 2. Therefore, the moving average value Wrave of the peeled width in the most recent reference number of detections N (multiple times) is calculated based on the change over time in the peeled width of the peeled region 18. Furthermore, a target peeled width Wo is set for the peeled width of the peeled region 18 on the main surface 13, and a range equal to or greater than Wo-dWo and equal to or less than Wo+dWo is set as the target management range of the peeled width.

[0051] The control unit 30 compares the calculated moving average value Wrave with the target peel width Wo for the peeled portion 18 on the main surface 13 (S103). Then, the control unit 30 determines whether the moving average value Wrave of the peel width falls within the target control range (a range of Wo-dWo or more and Wo+dWo or less) (S104). If the moving average value Wrave falls within the target control range (S104-Yes), the control unit 30 controls the drive of the movement drive unit 28 in the peeling assembly 22A to maintain the position of the rotating brush 23 in the width direction (S105). Therefore, the position of the rotating brush 23 in the width direction is not corrected.

[0052] On the other hand, when the moving average value Wrave is not within the target control range (S104-No), the control unit 30 calculates a subtraction value (difference value) dW by subtracting the moving average value Wrave from the target peel width Wo for the peel width of the peeled portion 18 on the main surface 13 (S106). When the moving average value Wrave is smaller than the target peel width Wo, the subtraction value dw is a positive value, and when the moving average value Wrave is larger than the target peel width Wo, the subtraction value dw is a negative value.

[0053] Then, the control unit 30 uses the calculated subtraction value dw to calculate a correction value ε for the position of the rotating brush 23 of the peeling assembly 22A in the width direction (S107). In one example, the correction value ε is calculated by multiplying the subtraction value dw by a coefficient k. The coefficient k is set based on the relationship between the change in the position of the rotating brush 23 of the peeling assembly 22A in the width direction and the change in the peeling width of the peeling region 18 of the main surface 13. The coefficient k is set to, for example, any value between 0.2 and 1. The relationship between the change in the position of the rotating brush 23 of the peeling assembly 22A in the width direction and the change in the peeling width of the peeling region 18 of the main surface 13 varies depending on the type of the rotating brush 23 including the dimensions of the rotating brush 23, the thickness of the fiber film 12 to be peeled, and the like.

[0054] Then, the control unit 30 controls the driving of the movement drive unit 28 in the peeling assembly 22A based on the calculated correction value ε, and corrects the position of the rotating brush 23 in the width direction (S108). At this time, the control unit 30 drives the movement drive unit 28 to move the rotating brush 23 along the width direction. Then, the position of the rotating brush 23 in the width direction changes in the movement direction corresponding to the calculated correction value ε by the movement amount corresponding to the correction value ε.

[0055] The position of the rotating brush 23 of the peeling assembly 22B in the width direction is also adjusted by performing a process similar to the process of the example of Fig. 6. Then, in a state in which the peeling of the fiber film 12 by the rotating brush 23 is continuously performed on the transported coated structure 10, a process similar to the example of Fig. 6 is performed as an adjustment process of the position of the rotating brush 23 of the peeling assembly 22B in the width direction every time a detection is performed once for the peeling width of the peeled region 18 formed on the main surface 14.

[0056] As the above-described process is performed, in this embodiment, the control unit 30 determines whether or not to correct the position of the rotating brush 23 in the width direction based on the detection result of the peeling width of the peeled portion 18. In particular, the control unit 30 compares the moving average value Wrave of the peeling width in the most recent reference number of detections N with the target peeling width Wo, and determines whether or not to correct the position of the rotating brush 23 in the width direction based on the comparison result between the moving average value Wrave and the target peeling width Wo.

[0057] Furthermore, since the processing is performed as described above, in this embodiment, when correcting the position of the rotating brush 23 in the width direction, the control unit 30 calculates a correction value ε for the position of the rotating brush 23 in the width direction based on the detection result for the peeling width. In particular, the control unit 30 calculates the correction value ε for the position of the rotating brush 23 in the width direction based on the result of comparing the moving average value Wrave of the peeling width with the target peeling width Wo.

[0058] 7 illustrates an example of correcting the position of the rotating brush 23 in the width direction by adjusting the position of the rotating brush 23 in the width direction. In the example of FIG. 7, while the coated structure 10 is being transported downstream (arrow F), the peel width of the peeled region 18 formed on the main surface 13 is detected once for each inspection length Xd in the length direction. Then, for the peeled region 18, a moving average value Wrave of the peel width in the most recent reference number N (multiple times) of detections is calculated. In the example of FIG. 7, the calculated moving average value Wrave does not fall within the target control range (a range of Wo-dWo or more and Wo+dWo or less) and is smaller than the target peel width Wo.

[0059] 7, the control unit 30 calculates a subtraction value dW by subtracting the moving average value Wrave from the target peel width Wo, and calculates a correction value ε for the position of the rotating brush 23 in the width direction from the subtraction value dW. Then, the control unit 30 corrects the position of the rotating brush 23 in the width direction in accordance with the correction value ε (arrow M1), thereby increasing the peel width of the peeled area 18. In other words, the position of the rotating brush 23 in the width direction is corrected so that the peel width of the peeled area 18 approaches the target peel Wo.

[0060] FIG. 8 is a schematic diagram showing an example of the internal configuration of the housing 25 in the peeling assembly 22. In one example, the internal configuration of the housing 25 in each of the two peeling assemblies 22A and 22B is the same as the example shown in FIG. 8. In the state shown in FIG. 8, the coated structure 10 is transported downstream in the transport line 2 (arrow F), and the rotating brush 23 rotates around the rotation axis P (arrow R). Therefore, in the state shown in FIG. 8, a part of the fiber film 12 is peeled off by the rotating brush 23 in the coated structure 10 being transported. In FIG. 8, the peeling assembly 22 is shown in a cross section perpendicular or substantially perpendicular to the rotation axis P of the rotating brush 23.

[0061] As shown in FIG. 8, in the peeling assembly 22, an exhaust passage 35 is formed inside the housing 25. A dust collector (not shown) equipped with a suction source is connected to the peeling assembly 22, and the suction source of the dust collector includes a suction drive unit (not shown) such as a suction pump. When the dust collector is connected to the peeling assembly 22, a suction force acts from the outside of the housing 25 to the internal cavity through the opening portion 26 by driving the suction drive unit of the dust collector, and an air flow is formed from the internal cavity of the housing 25 through the exhaust passage 35 toward the dust collector (arrow Y in FIG. 8). Therefore, the fibers peeled off by the rotating brush 23 in the coated structure 10 are sucked into the inside of the housing 25 as suctioned matter. Then, the fibers sucked into the internal cavity of the housing 25 are sucked and collected by the dust collector through the exhaust passage 35.

[0062] In the internal cavity of the peeling assembly 22, the exhaust flow passage 35 is disposed on the opposite side to the opening portion 26 with respect to the rotation axis P of the rotating brush 23. That is, the exhaust flow passage 35 is formed away from the rotation axis P on the opposite side to the contact position of the rotating brush 23 with the coated structure 10. In the example of Fig. 8, the exhaust flow passage 35 is disposed at an angular position 180° or approximately 180° away from the opening portion 26 in the circumferential direction of the rotating brush 23 (the direction around the rotation axis P).

[0063] In the example of FIG. 8, a blade member 40 is stored in the internal cavity of the housing 25 in addition to the rotating brush 23. The blade member 40 contacts the rotating brush 23 from the outer periphery side of the rotating brush 23. When the rotating brush 23 is rotating, the blade member 40 contacts the rotating brush 23, and the attachments 36 such as fibers attached to the rotating brush 23 are removed by the blade member 40. The attachments 36 removed from the rotating brush 23 by the blade member 40 are sucked and collected by the dust collector through the exhaust passage 35. In the example of FIG. 8, in the internal cavity of the housing 25, in a portion where air flows from the space where the rotating brush 23 is disposed to the exhaust passage 35, the cross-sectional area of ​​the passage decreases toward the exhaust passage 35. As a result, the flow velocity of the air increases in the portion where the air flows into the exhaust passage 35.

[0064] FIG. 9 shows a schematic diagram of an example of the configuration of the blade member 40. In the example shown in FIG. 8 and FIG. 9, the blade member 40 is formed in a plate shape. In the blade member 40, a plate length direction (direction indicated by an arrow A1 in FIG. 9), a plate width direction (direction indicated by an arrow A2 in FIG. 9) intersecting (perpendicular or substantially perpendicular) with the plate length direction, and a plate thickness direction (direction perpendicular or substantially perpendicular to the paper surface in FIG. 9) intersecting (perpendicular or substantially perpendicular) with both the plate length direction and the plate width direction are defined. In FIG. 8, the blade member 40 is shown in a cross section perpendicular or substantially perpendicular to the plate width direction, and in FIG. 9, the blade member 40 is shown as viewed from one side in the plate thickness direction. In the blade member 40, one end in the plate length direction is the base end E1, and the end opposite to the base end E1 in the plate length direction is the tip end E2.

[0065] As shown in Fig. 9 etc., the blade member 40 comprises a base plate portion 41 and a tip blade portion 42. In the blade member 40, the base end E1 is formed by the base plate portion 41, and the tip E2 is formed by the tip blade portion 42. In the blade member 40, the tip blade portion 42 is adjacent to the base plate portion 41 on the tip side. The tip blade portion 42 comprises a plurality of blades 43, and in the blade member 40, the plurality of blades 43 of the tip blade portion 42 protrude from the base plate portion 41 to the tip side. In the blade member 40, the tip E2 is formed by the ends of the plurality of blades 43 protruding from the base plate portion 41.

[0066] In the example shown in Figs. 8 and 9, the tip cutting portion 42 is formed in a comb-tooth shape with multiple blades 43 aligned in the plate width direction. In the tip cutting portion 42, a gap is formed between two blades 43 adjacent to each other in the plate width direction. Therefore, in the tip cutting portion 42, the multiple blades 43 and multiple gaps are alternately arranged in the width direction. That is, in the tip cutting portion 42, the multiple blades 43 are arranged side by side in the width direction at a predetermined pitch. It is preferable that the pitch of the multiple blades 43 in the tip cutting portion 42 is the same or approximately the same size as the pitch of the brush bristles in the rotating brush 23.

[0067] FIG. 10 is a schematic perspective view of an example of the configuration of the tip cutting portion 42, and FIG. 11 is a schematic perspective view of another example of the configuration of the tip cutting portion 42 different from that of FIG. 10. In the example of FIG. 10, the cross-sectional shape perpendicular or substantially perpendicular to the plate length direction in each of the multiple blades 43 of the tip cutting portion 42 is rectangular or substantially rectangular. In addition, in the example of FIG. 11, the cross-sectional shape perpendicular or substantially perpendicular to the plate length direction in each of the multiple blades 43 of the tip cutting portion 42 is trapezoidal or substantially trapezoidal. Note that the cross-sectional shape of each of the multiple blades 43 in the cross section perpendicular or substantially perpendicular to the plate length direction is not limited to the shapes of the examples of FIG. 10 and FIG. 11, and may be, for example, circular or substantially circular.

[0068] 8, 10, 11, etc., in the blade member 40, the cross-sectional area of ​​the blade member 40 in a cross section perpendicular or substantially perpendicular to the plate length direction decreases toward the tip side, i.e., toward the tip E2. In the tip cutting portion 42, the cross-sectional area of ​​each of the multiple blades 43 in a cross section perpendicular or substantially perpendicular to the plate length direction decreases toward the tip E2.

[0069] As shown in FIG. 8 and other figures, the tip E2 and a portion of the blade member 40 near the tip E2 come into contact with the rotating brush 23, and the tip blade portion 42 of the blade member 40 comes into contact with the rotating brush 23. The contact position of the tip blade portion 42 with the rotating brush 23 is located on the opposite side of the rotation axis P to the opening portion 26 of the housing 25. That is, the contact position of the tip blade portion 42 with the rotating brush 23 is located on the opposite side of the rotation axis P to the contact position of the rotating brush 23 with the coated structure 10. The tip blade portion 42 of the blade member 40 comes into contact with the rotating brush 23 in a region that has rotated from the angular position where the opening portion 26 (contact position with the coated structure 10) is located to the angular position where the exhaust flow path 35 is located. In FIG. 8, the region on the right side of the rotation axis P corresponds to the region that has rotated from the angular position where the opening portion 26 is located to the angular position where the exhaust flow path 35 is located.

[0070] Therefore, in a region where the tip cutting portion 42 rotates and moves from an angular position where the opening portion 26 is located to an angular position where the exhaust flow passage 35 is located, the tip cutting portion 42 contacts the rotating brush 23 at a contact position on the opposite side of the rotation axis P from the opening portion 26. In an example of FIG. 8, the contact position of the tip cutting portion 42 with the rotating brush 23 is located on the right side and upper side with respect to the rotation axis P. In addition, a tangent line Q1 with the rotating brush 23 at the contact position of the tip cutting portion 42 with the rotating brush 23 is defined. In an example of FIG. 8, the tip cutting portion 42 contacts the rotating brush 23 with the plate length direction of the blade member 40 aligned with the tangent line Q1.

[0071] Also, a tangent Q0 to the rotating brush 23 at the contact position of the rotating brush 23 with the coated structure 10 (the angular position where the opening portion 26 is located) is defined. Then, an acute angle α formed by the tangents Q0 and Q1 is defined. In the example of FIG. 8, the acute angle α is any value between 30° and 60°. Also, the tip blade portion 42 contacts the rotating brush 23 in a state where it is inserted from the outermost periphery of the rotating brush 23 to the inner periphery. The insertion dimension of the tip blade portion 42 from the outermost periphery to the inner periphery of the rotating brush 23 can be adjusted, for example, within a range of 0.1 mm or more and 5 mm or less.

[0072] As described above, in this embodiment, the moving drive unit 28 is driven to move the rotating brush 23 along the width direction of the coated structure 10, and the width detection unit 31 detects the peeling width along the width direction of the coated structure 10 for the peeled region 18 where the fiber membrane 12 is peeled off from the substrate 11 by the rotating brush 23. Then, the control unit 30 controls the driving of the moving drive unit 28 based on the detection result of the peeling width of the peeled region 18, and adjusts the position of the rotating brush 23 in the width direction. Therefore, even if the transport position of the coated structure 10 in the width direction changes over time, the position of the rotating brush 23 in the width direction can be adjusted to fall within a desired range by adjusting the position of the rotating brush 23 in the width direction in response to the detection result of the peeling width of the peeled region 18.

[0073] In addition, in this embodiment, the position of the rotating brush 23 in the width direction is adjusted by controlling the drive of the movement drive unit 28 in accordance with the detection result of the peeling width of the peeling region 18, so that the position of the rotating brush 23 in the width direction can be adjusted without manual work by an operator. Therefore, the peeling width of the peeling region 18 is appropriately adjusted without stopping the production of the product including the film peeling process by the peeling unit 7.

[0074] In one example of this embodiment, the fiber membrane 12 is formed on both of the pair of main surfaces 13, 14 of the substrate 11, and a part of the fiber membrane 12 is peeled off on each of the main surfaces 13, 14 by the film peeling process. Then, the width detection unit 31 detects the peeling width along the width direction for each peeled portion 18 on the main surfaces 13, 14. Then, based on the detection result of the peeling width of the peeled portion 18 on the main surface 13, the control unit 30 controls the driving of the movement drive unit (first movement drive unit) 28 in the peeling assembly 22A, and adjusts the position of the rotating brush (first rotating brush) 23 in the width direction. Also, based on the detection result of the peeling width of the peeled portion 18 on the main surface 14, the control unit 30 controls the driving of the movement drive unit (second movement drive unit) 28 in the peeling assembly 22B, and adjusts the position of the rotating brush (second rotating brush) 23 in the width direction. Therefore, even when peeled regions 18 are formed on both of the pair of main surfaces 13, 14 of substrate 11, the peel width of peeled regions 18 formed on each of main surfaces 13, 14 can be appropriately adjusted.

[0075] In addition, in one example of this embodiment, the control unit 30 calculates the moving average value Wrave of the peeling width at the most recent reference number of detections N based on the time change of the peeling width of the peeled area 18, and determines whether or not to correct the position of the rotating brush 23 in the width direction based on the comparison result between the moving average value Wrave of the peeling width and the target peeling width Wo. Therefore, it is appropriately determined whether or not to correct the position of the rotating brush 23. Furthermore, when correcting the position of the rotating brush 23 in the width direction, the control unit 30 calculates a correction value ε for the position of the rotating brush 23 in the width direction based on the comparison result between the moving average value Wrave of the peeling width and the target peeling width Wo. Therefore, the correction value η is appropriately calculated for the position of the rotating brush 23 in the width direction. Therefore, by correcting the position of the rotating brush 23 based on the correction value ε, the peeling width of the peeled area 18 is further appropriately adjusted.

[0076] In one example of this embodiment, the tip cutting edge 42 of the blade member 40 is formed in a comb-tooth shape with multiple blades 43 aligned in the plate width direction. The tip cutting edge 42 contacts the rotating brush 23 in a position in which the plate length direction of the blade member 40 is along a tangent line Q1 to the rotating brush 23 at the contact position with the rotating brush 23. With this configuration, the attachments 36 such as fibers adhering to the rotating brush 23 are appropriately removed by the blade member 40. This effectively prevents the fibers peeled off from the coated structure 10 by the rotating brush 23 from becoming entangled in the rotating brush 23, etc.

[0077] Furthermore, in one example of this embodiment, the tip blade portion 42 of the blade member 40 contacts the rotating brush 23 at a contact position on the opposite side of the rotation axis P from the opening portion 26 (the contact position of the rotating brush 23 with the coated structure 10) in a region where the tip blade portion 42 rotates and moves from the angular position where the opening portion 26 is located to the angular position where the exhaust flow path 35 is located. With this configuration, the attachments 36 such as fibers removed from the rotating brush 23 by the tip blade portion 42 flow appropriately into the exhaust flow path 35 and are appropriately sucked and collected by a dust collector through the exhaust flow path 35. This effectively prevents the attachments 36 removed from the rotating brush 23 from adhering to the coated structure 10, etc.

[0078] In one example of this embodiment, the acute angle α between the tangent Q0 to the rotating brush 23 at the contact position of the rotating brush 23 with the coated structure 10 and the above-mentioned tangent Q1 is any value between 30° and 60°. With this configuration, even if the cross-sectional area of ​​the flow path is reduced toward the exhaust flow path 35 at the inlet portion to the exhaust flow path 35, it is possible to bring the blade member 40 into contact with the rotating brush 23 in the internal cavity of the housing 25 at the position and attitude described above.

[0079] (Modification) Next, a first modified example will be described. FIG. 12 is a block diagram showing an example of a control system of the peeling device 4 according to this modified example. As shown in FIG. 12, in this modified example, similar to the above-mentioned embodiment, the peeling device 4 includes a control unit 30 and a width detection unit 31. Furthermore, the peeling unit 7 is provided with two peeling assemblies 22 (22A, 22B), and each of the peeling assemblies 22 includes a movement drive unit 28. In this modified example, in each of the peeling assemblies 22, the movement drive unit 28 includes two drive members 46, 47. Each of the drive members 46, 47 is, for example, an electric motor.

[0080] In each of the peeling assemblies 22, by driving the driving member 46 of the moving driving unit 28, the driving force from the driving member 46 is transmitted to the rotating brush 23, and the rotating brush 23 moves along the width direction of the coated structure 10 (the width direction of the conveying line 2). As a result, in each of the peeling assemblies 22, the position of the rotating brush 23 in the width direction of the coated structure 10 changes. Also, in this modification, by driving the driving member 47 of the moving driving unit 28 in each of the peeling assemblies 22, the driving force from the driving member 47 is transmitted to the rotating brush 23, and the rotating brush 23 moves along the thickness direction of the coated structure 10 (the height direction of the conveying line 2). As a result, in each of the peeling assemblies 22, the position of the rotating brush 23 in the thickness direction of the coated structure 10 changes.

[0081] Furthermore, in this modified example, in each of the peeling assemblies 22, the rotating brush 23 is movable along the thickness direction of the coating structure 10 (height direction of the conveying line 2) only within a specified range. Therefore, in each of the peeling assemblies 22, the position of the rotating brush 23 in the thickness direction of the coating structure 10 is changeable only within a specified range. Therefore, in each of the rotating brushes 23 of the peeling assemblies 22, movement approaching the coating structure 10 beyond the specified range and movement approaching the coating structure 10 beyond the specified range are both impossible.

[0082] In this modification, the control unit 30 also adjusts the position of the rotating brush 23 of the peeling assembly 22A in the width direction of the coated structure 10 based on the detection result of the peeling width of the peeling region 18 on the main surface 13. Then, the control unit 30 adjusts the position of the rotating brush 23 of the peeling assembly 22B in the width direction of the coated structure 10 based on the detection result of the peeling width of the peeling region 18 on the main surface 14. The control unit 30 adjusts the position of the rotating brush 23 in the width direction by controlling the driving of the driving member 46 of the movement driving unit 28 for each of the peeling assemblies 22.

[0083] The adjustment of the position of the rotating brush 23 in the width direction by the control unit 30 is performed in the same manner as any of the above-mentioned examples. In one example, every time the peeling width of the peeled region 18 formed on the main surface 13 is detected once, a process similar to the example of Fig. 6 is performed as an adjustment process of the position of the rotating brush 23 of the peeling assembly 22A in the width direction. And every time the peeling width of the peeled region 18 formed on the main surface 14 is detected once, a process similar to the example of Fig. 6 is performed as an adjustment process of the position of the rotating brush 23 of the peeling assembly 22B in the width direction.

[0084] Moreover, in this modification, each of the peeling assemblies 22 includes a torque detection unit 45. In each of the peeling assemblies 22, while the rotating brush 23 is rotating, the torque detection unit 45 detects the rotational torque τ of the rotating brush 23 using a torque sensor or the like. In each of the peeling assemblies 22, the rotational torque τ of the rotating brush 23 is detected as a parameter related to the wear state of the rotating brush 23 by the torque detection unit 45, which is a state detection unit.

[0085] Here, in each of the peeling assemblies 22, as long as the position of the rotating brush 23 in the height direction of the conveying line 2 remains unchanged, the wear state of the rotating brush 23 changes, and thus the contact state of the rotating brush 23 with the conveyed coating structure 10 changes. As described above, the contact state of the rotating brush 23 with the coating structure 10 changes in response to the wear state of the rotating brush 23, and thus the rotational torque τ of the rotating brush 23 changes. In fact, as long as the position of the rotating brush 23 in the height direction of the conveying line 2 (thickness direction of the coating structure 10) remains unchanged, when the degree of wear of the rotating brush 23 becomes large to a certain extent, the rotating brush 23 does not come into contact with the coating structure 10 being conveyed, or comes into almost no contact with the coating structure 10. As the rotating brush 23 does not come into contact with the coating structure 10, the rotational torque τ of the rotating brush 23 decreases compared to the state in which the rotating brush 23 comes into contact with the coating structure 10.

[0086] The control unit 30 acquires the detection result by the torque detection unit 45 for the rotational torque τ of the rotating brush 23 of each of the stripping assemblies 22. In one example, in each of the stripping assemblies 22, the torque detection unit 45 detects the rotational torque τ of the rotating brush 23 once at regular time intervals, i.e., at each sampling period. Therefore, the detection value of the rotational torque τ of the rotating brush 23 is detected at regular time intervals. The control unit 30 may acquire the time change of the rotational torque τ of each of the rotating brushes 23 of the stripping assembly 22 as the detection result in addition to the detection value from the most recent detection.

[0087] In this modification, the control unit 30 controls the driving of the drive member 47 of the movement drive unit 28 for each of the peeling assemblies 22 (22A, 22B) based on the detection result of the rotational torque τ of the rotating brush 23. As a result, in each of the peeling assemblies 22, the position of the rotating brush 23 in the thickness direction of the coated structure 10 (the height direction of the conveying line 2) is adjusted based on the detection result of the rotational torque τ of the rotating brush 23, which is a parameter related to the wear state of the rotating brush 23. At this time, the position of the rotating brush 23 in the thickness direction of the coated structure 10 is adjusted so that the rotating brush 23 is located at any position within the above-mentioned specified range, that is, so that the rotating brush 23 does not move beyond the specified range.

[0088] In this modification, the peeling device 4 includes a warning unit 48. The warning unit 48 is configured with a user interface. The control unit 30 causes the warning unit 48 to notify warning information. The warning information is notified by any of a screen display, a voice, or the like.

[0089] FIG. 13 is a flowchart showing an example of a management process for the wear state of the rotating brush 23 performed by the control unit 30 in this modified example. The control unit 30 manages the wear state by performing the process of the example of FIG. 13 for each rotating brush 23 of the stripping assembly 22 (22A, 22B). The process of the example of FIG. 13 is performed each time the rotational torque τ of the rotating brush 23 is detected once in each stripping assembly 22. When the process of the example of FIG. 13 is started, the control unit 30 acquires a detection result for the rotational torque τ of the rotating brush 23 (S111). At this time, the control unit 30 acquires at least the detection value of the rotational torque τ from the most recent detection.

[0090] Then, the control unit 30 judges whether the detected rotational torque τ is equal to or greater than a torque threshold value (lower torque limit value) τth (S112). If the rotational torque τ is equal to or greater than the torque threshold value τth (S112-Yes), the control unit 30 controls the driving of the driving member 47 of the moving driving unit 28 in the corresponding one of the peeling assemblies 22, thereby maintaining the position of the rotating brush 23 in the thickness direction of the coated structure 10 (height direction of the conveying line 2) (S113). Therefore, the position of the rotating brush 23 in the thickness direction is not corrected.

[0091] On the other hand, if the rotational torque τ is smaller than the torque threshold τth (S113-No), the control unit 30 calculates a correction value η for the position of the rotating brush 23 in the thickness direction (height direction of the conveying line 2) (S114). In one example, a table or function for deriving the correction value η from the rotational torque τ is stored in a storage medium or the like of the control unit 30, and the control unit 30 calculates the correction value η using the detection result of the rotational torque τ and the table or function for deriving the correction value η from the rotational torque τ. The correction value η may be calculated using a subtraction value (difference value) obtained by subtracting the detection value of the rotational torque τ from the torque threshold τth instead of the detection value of the rotational torque τ. In this case, a table or function for deriving the correction value η from the aforementioned subtraction value is stored in a storage medium or the like of the control unit 30.

[0092] The control unit 30 also calculates the correction value η and calculates the position of the rotating brush 23 in the thickness direction (height direction of the conveying line 2) after correction based on the correction value η (S114). Then, the control unit 30 judges whether the position of the rotating brush 23 in the thickness direction after correction falls within the above-mentioned specified range (S115). If the position of the rotating brush 23 after correction falls within the specified range (S115-Yes), the control unit 30 controls the driving of the driving member 47 of the moving driving unit 28 at the corresponding one of the peeling assemblies 22 based on the calculated correction value η, and corrects the position of the rotating brush 23 in the thickness direction of the coated structure 10 (S116). At this time, the control unit 30 drives the driving member 47 to move the rotating brush 23 along the thickness direction of the coated structure 10. Then, the position of the rotating brush 23 in the thickness direction changes by the movement amount corresponding to the correction value η in the movement direction corresponding to the calculated correction value η.

[0093] On the other hand, if the corrected position of the rotating brush 23 does not fall within the specified range (S115-No), the control unit 30 causes the warning unit 48 to warn the user to replace the rotating brush 23 (S117). In this case, the position of the rotating brush 23 in the thickness direction (height direction of the conveyor line 2) is not corrected.

[0094] This modification also provides the same effects and advantages as the above-described embodiment. In this modification, the rotational torque τ of the rotating brush 23 is detected as a parameter related to the wear state of the rotating brush 23. Then, the control unit 30 adjusts the position of the rotating brush in the thickness direction of the coated structure 10 (the height direction of the conveying line 2) based on the detection result of the rotational torque τ. Therefore, the position of the coated structure 10 in the thickness direction is appropriately adjusted in accordance with the wear state of the rotating brush 23.

[0095] In addition, in this modification, the position of the rotating brush 23 in the thickness direction is adjusted by controlling the driving of the driving member 47 of the moving driving unit 28 in response to the detection result of the rotational torque τ, so that the position of the rotating brush 23 in the thickness direction can be adjusted without manual work by an operator. Therefore, the position of the rotating brush 23 in the height direction of the conveyor line 2 is appropriately adjusted to a position corresponding to the wear state of the rotating brush 23 without stopping the production of the product including the film peeling process by the peeling unit 7.

[0096] In this modification, when correcting the rotating brush 23 in the thickness direction of the coated structure 10, the control unit 30 calculates a correction value η and the position of the rotating brush 23 after the correction. Then, when the position of the rotating brush 23 after the correction does not fall within a specified range, the control unit 30 issues a warning to replace the rotating brush 23. This allows the user of the peeling device 4 to know that the rotating brush 23 has worn to the point where it cannot be used, regardless of the position of the rotating brush 23 in the height direction of the conveyor line 2. The warning enables the user of the peeling device 4 to replace the rotating brush 23 at an appropriate time.

[0097] In the first modified example, the rotational torque τ of the rotating brush 23 is detected as the parameter related to the wear state of the rotating brush 23, but the parameter detected as the parameter related to the wear state of the rotating brush 23 is not limited to the rotational torque τ. In one modified example, the above-mentioned peeling width of the peeled region 18 is detected as the parameter related to the wear state of the rotating brush 23. Here, in each of the peeling assemblies 22, as long as the position of the rotating brush 23 in the height direction of the conveyor line 2 remains unchanged, when the contact state of the rotating brush 23 with the coated structure 10 changes in response to the wear state of the rotating brush 23, the peeling width of the peeled region 18 and the like change.

[0098] In this modification, similarly to the above-mentioned embodiment, when the moving average value Wrave of the peeling width of the peeling region 18 does not fall within the target control range, the control unit 30 calculates a correction value ε and corrects the position of the rotating brush 23 in the width direction based on the calculated correction value ε. Also, in this modification, when the moving average value Wrave of the peeling width of the peeling region 18 does not fall within the target control range even after correcting the position of the rotating brush 23 in the width direction, the control unit 30 corrects the position of the rotating brush 23 in the thickness direction (height direction of the conveying line 2) of the coated structure 10. The correction of the position of the rotating brush 23 in the thickness direction is performed in the same manner as in the first modification. Also, in this modification, similarly to the first modification, when the position of the rotating brush 23 after correction does not fall within the specified range, the control unit 30 warns the user to replace the rotating brush 23. In this modification, the same actions and effects as those of the first modification are achieved.

[0099] According to at least one of these embodiments or examples, the moving drive unit is driven to move the rotating brush along the width direction of the coated structure, and the width detection unit detects the peeling width along the width direction of the coated structure for a peeled portion where the fiber film is peeled off from the substrate by the rotating brush. Then, the control unit controls the driving of the moving drive unit based on the detection result of the peeling width of the peeled portion, and adjusts the position of the rotating brush in the width direction. In this way, it is possible to provide a peeling device, a manufacturing system, and a peeling method that can appropriately adjust the peeling width of the peeled portion of the fiber film without stopping production in the production of a product by peeling off a part of the fiber film from the substrate.

[0100] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0101] 1... manufacturing system, 2... conveying line, 3... film forming device, 4... peeling device, 5... coating unit, 6... drying unit, 7... peeling unit, 8... inspection unit, 10... coating structure, 11... substrate, 12... fiber membrane, 18... peeling area, 22 (22A, 22B)... peeling assembly, 23... rotating brush, 25... housing, 26... opening portion, 28... movement drive unit, 30... control unit, 31... width detection unit, 35... exhaust flow path, 40... blade member, 42... tip cutting portion, 45... torque detection unit, 48... warning unit.

Claims

1. A peeling device for peeling a part of a fiber membrane from a substrate in a coated structure having a fiber membrane formed on a surface of the substrate, comprising: a rotating brush that rotates while in contact with the coated structure being transported, thereby peeling off the fiber film from the substrate within a partial range in the width direction of the coated structure; a movement drive unit that moves the rotating brush along the width direction by being driven; a width detection unit that detects a peeled width along the width direction of a peeled portion where the fiber film is peeled off from the substrate by the rotating brush; a control unit that controls driving of the movement drive unit based on a detection result of the peeling width of the peeled portion, and adjusts a position of the rotating brush in the width direction; A peeling device comprising:

2. When correcting the position of the rotating brush in the width direction based on the detection result of the peeling width of the peeled portion, the control unit calculates a correction value for the position of the rotating brush in the width direction based on the detection result of the peeling width, The control unit controls the driving of the movement drive unit based on the calculated correction value, and corrects the position of the rotating brush in the width direction. The peeling device according to claim 1.

3. the width detection unit detects a change in the peeled width of the peeled portion over time while the fiber film is being continuously peeled off by the rotating brush from the coated structure being transported; the control unit calculates a moving average value of the peel width in a most recent reference number of detections based on the time change of the peel width of the peeled portion; When correcting the position of the rotating brush in the width direction based on a comparison result between the moving average value of the peeling width and a target peeling width, the control unit calculates the correction value for the position of the rotating brush in the width direction based on the comparison result between the moving average value of the peeling width and the target peeling width. The peeling device according to claim 2.

4. A state detection unit detects a parameter related to a wear state of the rotary brush, the control unit adjusts a position of the rotating brush in a thickness direction of the coating structure intersecting with the width direction based on a detection result of the parameter related to the wear state. The peeling device according to claim 1.

5. A peeling device according to any one of claims 1 to 4, a conveying line along which the substrate and the coated structure having the fiber membrane formed on the surface of the substrate are conveyed; a coating unit that is disposed upstream of the conveying line with respect to the peeling device and that applies a raw material liquid to the substrate being conveyed, and forms the fiber membrane on the surface of the substrate with the applied raw material liquid; A manufacturing system comprising:

6. A method for peeling a part of a fiber membrane from a substrate in a coated structure having a fiber membrane formed on a surface of the substrate, comprising the steps of: a rotating brush is rotated in contact with the coated structure being transported, thereby peeling off the fiber film from the substrate in a partial range in the width direction of the coated structure; Driving a movement drive unit to move the rotating brush along the width direction; Detecting a peeled width along the width direction of a peeled portion where the fiber film is peeled off from the substrate by the rotating brush; controlling the driving of the movement drive unit based on a detection result of the peeling width of the peeled portion, and adjusting a position of the rotating brush in the width direction; The peeling method comprises:

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