TW201906778A - Sheet recycling device, sheet conveying and recycling system, and sheet recycling method - Google Patents

Abstract

The recycling device (50) of this invention comprises a moving direction guiding body (30) for receiving sheet material moving from a upstream side to a downstream side in a first direction and changing the movement direction; and a sheet recycling body (40) receiving the sheet guided from the moving direction guiding body and performing collecting and recycling. In the moving direction guiding body, a carrying surface (31) for receiving the sheet material is inclined along the first direction in a manner lowering from the upstream side to the downstream side and is inclined along a second direction orthogonal to the first direction in a manner lowering from the negative side to the positive side. The sheet material recycling body is located lower to the carrying surface of the moving direction guiding body and at the positive side in the second direction.

Description

Sheet recycling device, sheet conveying and recycling system, and sheet recycling method

The present invention relates to a sheet recovery device for accumulating and recovering sheet products conveyed from a conveying device, and a sheet conveying and recycling system combining a sheet conveying device and a sheet recovering device. Further, the present invention relates to a sheet recovery method using a sheet recovery device.

In the manufacturing steps of paper, film, steel plate, etc., the long mesh is cut into a specific size and processed into a single sheet. A single sheet is moved along a conveying direction on a conveying surface composed of an endless belt or a plurality of rotating rollers, and is collected downstream.

An inspection device is installed on the conveying path of the conveying device of the single sheet, and the non-standard product judged to be non-standard by inspection is guided to a conveying path different from the qualified product judged to be within the standard. Only qualified products are selectively recovered downstream of the device. For example, the conveying device of Patent Document 1 is configured such that a switching door is provided at a connection portion between horizontal conveyors, and when a non-standard product is conveyed, the door is opened and the sheet is positioned below the conveying surface. The inclined conveyor guides. In such a conveying device, qualified products are horizontally conveyed on a conveying surface and are accumulated by a qualified product recovery section downstream of the conveying path, and non-standard products slide down below the conveying surface and are collected and collected.

The method of guiding non-standard products below the conveying surface utilizes the slippage of the sheet material caused by gravity, so the conveying path can be switched smoothly. Therefore, when an unqualified sheet is transported on the transport path, there is no need to stop the transport in order to switch the sheet transport path, and the efficiency of screening and recovery of sheet products can be improved. [Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 8-119491

[Problems to be solved by the invention]

When a non-standard sheet is guided and screened below the conveying surface, the sheet guided to the lower side will be forced by gravity, so it is likely to be caused by a collision with a recycling box or the like during recycling. Damage or deformation of the sheet. In the case where the sheet guided below is a non-conforming product intended to be discarded, there is no particular problem even if it is damaged or deformed. On the other hand, when the sheet below the guided conveying surface is a sheet with a lower quality than a qualified product, but can still be used as a product (so-called B-grade product), it must not be damaged or deformed. Recycling the sheet before reducing the value of the product.

An object of the present invention is to provide a sheet recovery device capable of removing and recovering a sheet moving on a transport surface of a transport device before the value of the product is damaged. [Technical means to solve the problem]

The present invention relates to a sheet recovery method that collects and collects sheet materials that are moved from the upstream side to the downstream side in the first direction toward the downstream side of the conveyance surface and are guided below the conveyance surface to a sheet recovery body located below the conveyance surface. Method and sheet recovery device used in the sheet recovery method. The sheet recovery device includes a sheet movement direction guide and a sheet accumulation recovery body. The sheet moving direction guide receives a sheet that moves from the upstream side toward the downstream side in the first direction and changes the moving direction. The sheet accumulation recovery body receives the sheet moved from the sheet movement direction guide body and recovers it flatly.

The moving direction guide is preferably such that the mounting surface of the receiving sheet is inclined from the negative side toward the positive side along a second direction orthogonal to the first direction. The mounting surface of the moving direction guide is preferably inclined along the first direction so as to be lowered from the upstream side toward the downstream side. The sheet recovery body is located lower than the mounting surface of the movement direction guide body and on the positive side in the second direction.

The moving direction guide preferably has a curved surface portion gradually rising toward the downstream side at the downstream end in the first direction of the mounting surface. By having a raised curved surface at the downstream end of the mounting surface, the amount of movement of the sheet in the first direction can be reduced, thereby promoting the movement of the sheet to the sheet recovery body.

The sheet recovery body is preferably inclined so as to decrease from the negative side toward the positive side along the second direction to receive the stacking surface of the sheet guided from the moving direction guide. The stacking surface of the sheet recovery body is preferably inclined along the first direction so as to be lowered from the upstream side toward the downstream side. By inclining the loading surface of the sheet recovery body, it is possible to reduce the impact when the sheet moved from the moving direction guide body contacts the loading surface, thereby further suppressing damage or deformation of the sheet.

It is preferable that an upright wall surface for receiving the sheet guided from the moving direction guide body is provided at the end on the front side of the second direction of the stacking surface of the sheet recovery body. By providing an upright wall surface at the end in the second direction, the accumulation position of the sheet on the stacking surface can be stabilized, and the recovery operation of the sheet can be made more efficient.

Furthermore, the present invention relates to a sheet conveyance and recovery system including a sheet conveyance device and the above-mentioned sheet recovery device. [Effect of the invention]

The sheet recovery device changes the moving direction of the sheet and guides the sheet to the stacking surface of the sheet recovery body by the action of the moving direction guide body with the mounting surface inclined. Therefore, even when the sheet conveying surface from the sheet conveying device is guided to the sheet under the force due to gravity, the impact when the sheet recovery body comes into contact with the sheet is small, and the sheet can be suppressed. Deterioration of the value of the product due to damage or deformation during the recovery of the material.

FIG. 1 is a schematic perspective view of a sheet conveying and recycling system according to an embodiment. 2 and 3 are a top view and a front view of a sheet conveying and recycling system, respectively. The sheet conveyance and recovery system includes a sheet conveyance device 10 and a sheet recovery device 50 including a movement direction guide body 30 and a sheet recovery body 40. FIG. 4 is a cross-sectional view taken along line IV-IV of the sheet recovery device 50.

The sheet conveying device 10 conveys the sheet 2 from the upstream side (−y side) of the first direction (y-axis direction) as the conveying direction to the downstream side (+ y side) on the conveying surface composed of the plurality of rollers 11. The sheet 2 is, for example, an optical film such as a polarizing plate.

The sheets 5 that have reached the downstream end of the conveying surface are stacked down and collected by the gravity drop, and are collected in a sheet recovery box 20 located below the conveying surface. If the sheet recovery box 20 is set in the vicinity of the downstream end of the conveying surface in advance, the sheet 5 will be stacked with the loading surface 21 of the sheet recovery box 20 or stacked on the stack before being completely free from the conveying surface and falling freely. The sheets 26 on the surface are in contact with each other, and are stacked on the stacking surface 21 in a sliding manner (or firstly stacked on the sheet on the stacking surface). Therefore, the impact when the sheet 5 is in contact with the sheet recovery box 20 is small, and the sheet is not easily damaged or deformed due to the impact during the recovery.

An inspection device 83 is provided on the upstream side of the sheet conveying device 10 to inspect the sheet. The inspection information is stored in the memory section 85. The inspection information of each sheet stored in the storage section 85 is transmitted to the control section 88. When a film having specific inspection information (for example, abnormal quality) reaches the vicinity of the roller 15 constituting the conveying surface, the control unit 88 sends a path change signal to the sheet path changing mechanism. The sheet path changing mechanism that has received the path change signal operates to move the sheet 2 below (-z side) the conveyance surface.

In the sheet conveying device 10 shown in FIG. 1, an air blowing device 18 is provided above (+ z side) the conveying surface between the rollers 15 and 16 as a sheet path changing device. When the sheet 103 having specific inspection information reaches the roller 15, the air blowing device 18 blows air downward. Since the sheet 103 is flexible, it is bent downward by being blown by air from above, and is discharged below the guide roller 16 and below the sheet conveying surface.

The sheet guided to the lower side of the sheet conveying surface retains the amount of movement on the conveying surface toward the downstream side (+ y side) in the first direction, and is further imparted vertically downward due to the gravity when the sheet slides from the conveying surface (- z side). The sheet 104 having a movement amount in the + y direction and the -z direction is received by the mounting surface 31 of the movement direction guide body 30 of the sheet recovery device 50. The sheet received by the placement surface 31 of the movement direction guide 30 is moved on the placement surface 31 to be given a movement amount on the positive side (+ x side) in the second direction, so that the movement direction of the sheet is changed.

Preferably, as shown in FIG. 5, the mounting surface 31 is inclined in a manner that the mounting surface 31 decreases from the −x side toward the + x side along a second direction (x-axis direction) orthogonal to the first direction (y-axis direction). The inclination angle α) in the axial direction. If the mounting surface 31 is inclined downward from the -x side toward the + x side, the sheet 104 on the mounting surface 31 is given the positive side (+ in the x-axis direction) of the second direction (x-axis direction) by the action of gravity. x side), the movement direction changes. The sheet 104 given the amount of motion in the second direction is recovered to a sheet that is located vertically below (-z side) and on the positive side (+ x side) in the second direction than the mounting surface 31 of the movement direction guide 30. Inside the recovered body 40.

FIG. 6 is a top view of the conventional sheet conveying and recycling system, and FIG. 7 is a front view of the conventional sheet conveying and recycling system. The system shown in FIGS. 6 and 7 includes the same sheet conveying device 10 as the system shown in FIGS. 1 to 3. The sheet 5 that has reached the downstream end of the sheet conveying surface composed of a plurality of rollers 11 is flattened. The stacked accumulation is collected into the sheet collection box 20.

The previous sheet conveyance and recovery system and the sheet conveyance and recovery system of the present invention are different in the method of recovering the sheet that is guided below the conveyance surface. In the previous sheet conveying and recycling system, according to the inspection result upstream of the conveying path, the sheet 204 guided to the lower side of the conveying surface by the sheet path changing mechanism 18 was taken from the sheet recovering box 240 provided below the conveying surface. Recycle.

A roller and its power mechanism are arranged below the sheet conveyance surface. In order to avoid interference with the position of these devices, the sheet recovery box 240 is disposed away from the sheet conveyance surface. The sheet 204 guided to the lower side of the conveying surface may be on the stacking surface 241 of the sheet recycling box 240 or first on the stacking surface 246, or on the stacking surface 241 + y. The upright wall surfaces 243 of the side end portions collide. Since the sheet recovery box 240 is disposed away from the conveying surface, the sheet 204 is forced downward due to gravity when the sheet 204 faces downward. Therefore, when recovered from the sheet recovery box, the moving speed of the sheet 204 becomes large, and there is a case where the stacking surface 241 with the sheet recovery box 240, or the sheet 246 which is stacked on the stacking surface 241 first, or The sheet may be deformed or damaged due to the impact when it collides with the upright wall surface 243.

In the case where the sheet below the guided conveying surface is a non-conforming product that is intended to be discarded, there is no particular problem even if deformation or damage occurs during recycling in the sheet collection box. On the other hand, when the sheet below the guided conveying surface can be used as a product, in order to prevent the value of the product from being reduced due to damage or deformation, it is necessary to reduce the collision during recycling.

The sheet conveying and recovering system of the present invention is provided with a sheet recovering device 50 below the sheet conveying surface, and receives and recovers the sheet from the sheet conveying device 10 in two stages of the moving direction guide 30 and the sheet recovering body 40. The conveying surface is guided to the sheet below. Therefore, even when the sheet guided under the conveying surface is forced by gravity, the speed of the sheet moving direction (x direction) when recovered by the sheet recovery body 40 is small, and it is possible to prevent the Deformation or damage caused by collision.

Hereinafter, a sheet recovery method using the sheet recovery device 50 will be described with reference to FIGS. 5 (A) to (D).

As shown in FIG. 5 (A), the sheet 104 guided from the sheet conveying surface to the lower side is in contact with the placing surface 31 of the moving direction guide 30 disposed below the conveying surface. The sheet 104 not only has the amount of movement in the + y direction on the conveying surface, but also has the amount of movement in the -z direction due to the gravity when the self-conveying surface slides downward, with the + y side edge (the rectangular sheet in FIG. 5 is the (Short side) is in the dropping posture of the dropped front end contacting the mounting surface 31.

If the mounting surface 31 of the moving direction guide body 30 is inclined along the y-axis direction from the -y side toward the + y side, the sheet 104 with the edge on the + y side as the falling front end position is slid in It landed on the mounting surface 31 at a smaller angle. Therefore, the sheet 104 is unlikely to be damaged or deformed due to contact with the movement direction guide 30.

When the mounting surface 31 of the guide 30 in the moving direction is inclined along the x-axis direction so as to decrease from the -x side toward the + x side, as shown schematically in FIG. 5 (B), the direction toward + y At the point P where the side-moving sheet 104 is in contact with the mounting surface 31, a force in the + y direction and a force in the + x side are exerted by gravity, and the sheet 104 is given a movement amount in the + x direction. That is, since the mounting surface 31 of the moving direction guide 30 is inclined in the x-axis direction, the sheet 104 received by the mounting surface 31 moves in the + x direction.

In order to facilitate the movement of the sheet 104 in the x direction, the inclination angle α in the x-axis direction of the mounting surface 31 is preferably 3 ° or more, and more preferably 5 ° or more. If the inclination angle is too large, the sheet may be damaged or deformed due to an increase in the amount of movement in the x direction due to an impact when the sheet comes into contact with the sheet recovery body. Therefore, the inclination angle α is preferably 40 ° or less, and more preferably 30 ° or less.

As shown in FIG. 5 (A), the end edge on the + x side of the placement surface 31 of the guide 30 in the moving direction is located closer to the end edge on the + x side of the sheet 104 guided below the conveyance surface- In the case of the x-side, as shown in FIG. 5 (B), the sheet 104 has a region on the -x side received by the mounting surface 31 of the movement direction guide 30, and a region on the + x side does not contact the mounting surface 31. At the point P where the sheet 104 is in contact with the placement surface 31, the vertical resistance from the placement surface 31 acts on the sheet 104. In contrast, at the point Q where the sheet 104 is not in contact with the placement surface, no The reaction force relative to gravity. Therefore, the sheet 104 moves in the + x direction by the action of the moment.

In the case where the edge on the + x side of the placement surface 31 of the guide 30 in the moving direction is closer to the -x side than the edge on the + x side of the sheet 104 guided below the conveyance surface, even if placed The surface 31 is not inclined in the x-axis direction, and a movement amount in the + x direction can be given to a sheet moving on the placing surface 31. If the end edge on the + x side of the placement surface 31 is located closer to the -x side than the end edge on the + x side of the sheet 104 guided below the conveying surface, and the placement surface 31 faces + x from the -x side When the side lowering method is inclined along the x-axis direction, the movement of the sheet 104 in the + x direction becomes smoother.

In the xy plane, when the end edge 32 on the positive side of the second direction of the mounting surface 31 is not parallel to the y-axis direction and is inclined so that the x-coordinate on the downstream side (+ y side) becomes smaller (see the figure) 2) As the sheet 104 moves in the + y direction, the area on the -x side of the sheet 104 that is in contact with the mounting surface 31 becomes smaller, and the non-contact area on the + x side with the stacking surface becomes larger. Therefore, it is possible to further promote the movement of the sheet 104 in the + x direction by the action of the moment.

As shown in FIG. 5 (C), the sheet 104 to which the amount of movement in the + x direction is given is moved toward the sheet recovery body 40 located on the + x side, which is lower than the placement surface 31 of the guide 30 in the moving direction. That is, under the action of the moving direction guide body 30, the sheet 104 is guided to the stack of the sheet recovery body 40 while moving in the x-axis direction orthogonal to the moving direction (y-axis direction) when the self-conveying surface is dropped. Loading surface 41.

The sheet guided to the stacking surface 41 of the sheet recovery body 40 contacts the stacking surface 41 with the + x side edge (the long side of the rectangular sheet in FIG. 5) as the falling end of the falling posture. If the stacking surface 41 is inclined along the x-axis direction from the -x side toward the + x side, the sheet 104 with the edge on the + x side as the falling front end is slipped in by a smaller amount. Landing on the stacking surface 41 at an angle, therefore, it is difficult to cause the sheet 104 to be damaged or deformed due to the contact with the stacking surface 41. In addition, if the loading surface 41 is inclined along the y-axis direction from the -y side toward the + y side, the angle at which the long side of the sheet 104 falling as the leading end contacts the loading surface 41 becomes small, so that It is difficult to cause damage or deformation of the sheet 104 due to contact with the loading surface 41 of the sheet recovery body 40.

It is preferable that a gradually curved surface-shaped portion is provided at an end portion of the mounting surface 31 in the + y direction. When the sheet 104 touches the raised curved surface 33 at the end in the + y direction, the amount of movement in the y direction decreases, and in the movement of the sheet 104, the movement in the x direction plays a dominant role. By reducing the amount of movement in the y-direction by stopping the sheet 104 after raising the curved surface 33 (stopping the movement in the y-direction), the sheet 104 moving on the mounting surface 31 can be moved at a fixed position and folded to be located at On the loading surface 41 in the + x direction. Since the raised portion of the end portion in the + y direction of the mounting surface 31 has a curved shape, it is possible to make the impact without causing an impact due to the collision between the + y direction end portion of the sheet and the raised portion. The amount of motion in the y-direction of the sheet 104 decreases.

As shown in FIG. 5 (D), the sheet 104 guided to the stacking surface 41 of the sheet recovery body 40 stops after moving further in the + x direction, and is collected and collected on the stacking surface 41. Preferably, an upright wall surface 42 is provided at the end portion on the + x side of the stacking surface 41 to which the sheet 104 can abut. By providing the upright wall surface 42, the sheet 104 moved from the moving direction guide 30 can be stopped at a specific position and stacked on the stacking surface 41.

Preferably, the upright wall surface 42 provided at the + x direction end of the sheet recovery body 40 and the extending direction of the end edge on the positive side of the second direction of the placement surface 31 of the movement direction guide body 30 extend in parallel. If the upright wall surface 42 is parallel to the end edge of the mounting surface 31, the impact when the front end of the sheet 104 moved from the moving direction guide body 30 abuts on the upright wall surface 42 becomes small. Therefore, damage or deformation of the sheet can be suppressed. In addition, since the posture of the front end of the sheet 104 abutting on the upright wall surface 42 is stable, the accumulation position of the sheets in the sheet recovery body 40 is stable, and it is easy to collect a plurality of sheets accumulated in the sheet recovery body 40.

As described above, the sheet recovery device 50 receives the sheet 104 using the mounting surface 31 of the movement direction guide 30, and gives the sheet a movement amount in the x direction as the sheet on the mounting surface 31 moves. As a result, the sheet 104 moves in the x direction and is laid flat on the stacking surface 41 of the sheet recovery body 40. In this way, in the sheet recovery device 50, the moving direction guide 30 changes the direction of movement of the sheet, so the falling end of the sheet 104 received by the sheet recovery body 40 and the falling end of the sheet when the self-feeding surface is dropped different. Therefore, in the sheet recovery method of the present invention, even when the sheet recovery device 50 is disposed at a position remote from the sheet conveying surface, and when the self-conveying surface is guided to the sheet under the force due to gravity, It is also possible to suppress damage or impact due to an impact during the recovery by the sheet recovery body 40.

The sheets collected in the sheet recovery body 40 are moved to another place and are provided for subsequent steps. The so-called subsequent steps refer to inspection, packaging, shipment, and bonding with other components (such as an image display panel such as a liquid crystal cell). The movement of the sheet from the sheet recovery body to another place may be performed using an appropriate automatic conveying device or the like, or may be manually carried by an operator.

In the case where the operator manually transports the sheets accumulated in the sheet recovery box 240 located directly below the conveying surface as shown in FIG. 6, the operator must drill down below the conveying surface to collect the sheets accumulated in the box. In contrast, in the sheet recovery device 50, as shown in FIGS. 3 and 4, the sheet recovery body 40 can be disposed outside the edge on the + x side of the sheet conveyance surface composed of the plurality of rollers 11. (More on the + x side than the edge). Therefore, in the method of the present invention, it is easy to collect the sheets accumulated in the sheet recovery body 40, and the safety of the operation is also improved.

In the foregoing, the example of recovering the flexible sheet guided to the lower side of the conveyance surface by the sheet recovery device 50 in the sheet conveyance and recovery system shown in FIG. 1 has been described, but the present invention is not limited to the above. form.

The sheet recovery device 50 of the present invention changes the movement direction of the sheet by using the inclination of the mounting surface 31 of the movement direction guide body 30 and the like, and performs recovery by the sheet recovery body 40. This sheet recovery method can also be applied to a sheet other than the sheet discharged below the conveying surface by the action of the sheet path changing mechanism. For example, instead of the sheet recovery box 20, the sheet recovery device of the present invention may be used to recover the sheet reaching the downstream end of the conveying surface. As described above, the sheet collection box can be disposed near the conveying surface at the downstream end of the conveying surface. Therefore, compared with the sheet discharged below the conveying surface, the acceleration of the sheet due to gravity is small, and if the sheet recovery device of the present invention is used, it is possible to further suppress damage or deformation during recovery.

The sheet conveying surface of the sheet conveying device is preferably a horizontal surface, but may be an inclined surface. For example, the sheet may be conveyed by a roller conveyor (gravity conveyor) whose conveying surface is inclined from the upstream side toward the downstream side. The sheet conveying equipment is not limited to a rotating roller, and an endless belt or the like may be used to constitute the sheet conveying surface.

The sheet path changing mechanism that guides the sheet on the conveying surface downward is not limited to the air blowing method. For example, a pressing roller that can be raised and lowered may be provided above the conveying surface, and when the sheet to be guided downward is conveyed and the leading end of the sheet reaches directly below the pressing roller, the pressing roller is lowered from above and the sheet is directed toward By pressing downward, the sheet is guided below the conveying surface.

The conveying surface of the sheet conveying device may be deformed to guide the sheet downward. For example, as shown in FIG. 8, by moving the rotating shaft 116 of the conveyor downward, the conveying surface constituted by the endless belt 110 wound around the rotating shafts 115 and 116 can be tilted, so that the sheet on the conveyor can be tilted. The material 103 is guided downward. Alternatively, as shown in FIG. 9, the conveying surface of the endless belt 120 wound on the rotating shafts 125 and 126 may be inclined by moving the rotating shaft 125 of the conveyor upward, and the sheet 103 may be directed toward it. Guide down.

The sheet guided below the conveying surface can be directly guided from the conveying surface to the placing surface 31 of the moving direction guide 30, or it can be temporarily guided to the guide and then placed by the moving direction guiding body's placing surface. To undertake. Alternatively, as shown in FIG. 8, after the sheet 103 slides down the inclined conveying path (the endless belt 110), it can be received by the placement surface of the guide body in the moving direction.

The sheet that is guided below the conveying surface and the sheet that is not guided downward and conveyed to the downstream end of the conveying surface need only be selected based on a predetermined criterion. The selection criteria are not particularly limited. For example, as long as the inspection result of the inspection device installed upstream of the sheet conveying device is qualified (Class A), it is transported to the downstream end of the conveying surface and recovered into the sheet recovery box 20, which will not meet the acceptance criteria but will The product value person (B-grade product) may be guided to the lower side of the conveying surface and recovered into the sheet recovery body 40 of the sheet recovery device 50. By using the sheet recovery device 50 of the present invention, it is possible to prevent damage or deformation of a sheet product guided below the conveying surface. Therefore, it is also possible to guide and collect the A-grade product below the conveyance surface into the sheet recovery body 40 of the sheet recovery device 50.

The conveyance device may include a plurality of sheet path changing mechanisms in the conveyance direction. For example, the sheet path changing mechanism provided on the upstream side of the conveying path may be used to guide the defective products to the lower side of the conveying surface, and the sheet path changing mechanism provided on the downstream side may be used to direct the Class B product to the conveying surface. Guide down. Three or more path changing mechanisms may be provided along the conveying direction of the conveying device.

The inspection method on the upstream side of the sheet conveying device may be either an automatic inspection using the inspection device 83 or an inspection performed visually by an inspector. In the case where the sheet is an optical film, examples of inspection items include a portion containing foreign matter such as foreign matter, bubbles, dirt, etc .; a deformed portion such as a scratch, a damage; a film thickness, and an optical characteristic.

A sheet cutting device may be provided on the upstream side of the sheet conveying device. For example, the sheet-shaped product rolled out from the rolled body of the long mesh may be cut to a specific size by a sheet cutting device, and then transferred to the conveying surface of the sheet conveying device. In this case, inspection can be performed before and after cutting. It is also possible to roll out a long mesh that has been inspected in advance from the wound body and cut it to a specific size using a cutting device. As long as the position information of the defect obtained by the prior inspection is stored in the memory section in advance, the position information (y-coordinate) of the single sheet cut by the cutting device is compared with the defect position information stored in the memory section. When a single sheet including a defect is transported, the sheet path changing mechanism may be operated, and the sheet may be guided below the transport surface.

In FIGS. 1 to 5, an example is shown in which a single sheet is cut so that the conveying direction (y direction) becomes the long side of the rectangle and the width direction (x direction) becomes the short side of the rectangle, but it can be conveyed. A single sheet is cut such that the direction becomes the short side of the rectangle and the width direction becomes the long side of the rectangle. In the case where a single sheet cut in such a manner that the width direction becomes the long side of the rectangle is guided below the conveying surface, the single sheet is moved by the direction guide 30 with the long side of the rectangle as the falling front end. The mounting surface 31 is received, and then the moving direction is changed. The rectangular short edge is used as the falling front end to be taken down by the stacking surface 41 of the sheet recovery body and recovered flatly.

When the size or cutting direction of the flexible sheet is changed, the shape or amount of bending may be changed. By using the sheet recovery device of the present invention, regardless of the curved shape or amount of the sheet, the sheet can be received by the moving direction guide, the direction of the sheet can be changed, and the speed can be reduced. Guide to the sheet recovery body. The sheet recovery device of the present invention is not limited to flexible sheets such as optical films, but can also be applied to the recovery of rigid sheets such as steel plates.

In the sheet conveyance and recovery system of the present invention, the sheet recovery device 50 may be fixed to the sheet conveyance device 10 or may be installed separately from the sheet conveyance device 10. The movement direction guide 30 of the sheet recovery device 50 and the sheet recovery body 40 may be fixed integrally or may be separated. For example, the sheet recovery device 50 may be configured to be movable by providing wheels 38, 48, and the like under the moving direction guide 30 and the sheet recovery body 40. If the movement direction guide body 30 is configured to be movable, the position or angle of the end edge 32 of the mounting surface 31 can be easily adjusted, and accordingly, it is possible to achieve a cut-off direction, a size, and a falling posture of the sheet. optimize. In addition, by adjusting the position of the sheet recovery body 40 according to the arrangement of the movement direction guide 30, it is possible to reduce breakage or deformation of the sheet moving from the movement direction guide to the sheet recovery body 40.

2‧‧‧ sheet

5‧‧‧ sheet

10‧‧‧ transport device

11‧‧‧ roller

15‧‧‧roller

16‧‧‧roller

18‧‧‧ Sheet path changing equipment (air blowing device)

20‧‧‧sheet recycling box

21‧‧‧ Heap loading surface

26‧‧‧ Sheet

30‧‧‧ Movement direction guide

31‧‧‧mounting surface

32‧‧‧ edge

33‧‧‧Elevated surface

38‧‧‧ Wheel

40‧‧‧sheet recovery body

41‧‧‧heap loading surface

42‧‧‧ erect wall

48‧‧‧ Wheel

50‧‧‧ Sheet recycling device

83‧‧‧Inspection device

85‧‧‧Memory Department

88‧‧‧Control Department

103‧‧‧ Sheet

104‧‧‧ Sheet

110‧‧‧Endless belt

115, 116‧‧‧ Rotary axis

120‧‧‧ endless belt

125, 126‧‧‧rotation axis

204‧‧‧ Sheet

240‧‧‧sheet recycling box

241‧‧‧heap loading surface

243‧‧‧ erect wall

246‧‧‧sheet

P‧‧‧point

Q‧‧‧point

FIG. 1 is a schematic perspective view of a sheet conveying and recycling system. Fig. 2 is a plan view of a sheet conveying and recycling system. Figure 3 is a front view of the sheet conveying and recycling system. Fig. 4 is a sectional view of a sheet recovery device. 5 (A) to (D) are conceptual diagrams illustrating a case where a sheet is recovered by a sheet recovery device. FIG. 6 is a plan view of a conventional sheet conveying and recycling system. FIG. 7 is a front view of a conventional sheet conveying and recycling system. FIG. 8 is a cross-sectional view showing a configuration example of a sheet conveying device. Fig. 9 is a cross-sectional view showing a configuration example of a sheet conveying device.

Claims (11)

A sheet recovery device includes: a moving direction guide that receives a sheet that moves from an upstream side toward a downstream side in a first direction and changes the moving direction; and a sheet recovery body that receives the guide from the moving direction guide Coming and recovering the coming sheet material; the moving direction guide has a mounting surface for receiving the sheet, and the sheet recycling body is located below the mounting surface of the moving direction guide and is orthogonal to the first direction Positive side of the second direction. According to the sheet recovery device of claim 1, wherein the mounting surface of the moving direction guide is inclined along the second direction from the negative side toward the positive side. The sheet recovery device according to claim 1 or 2, wherein the mounting surface of the moving direction guide is inclined along the first direction so as to be lowered from the upstream side toward the downstream side. The sheet recovery device according to claim 1 or 2, wherein the moving direction guide has a curved surface shape portion that gradually rises toward the downstream side at a downstream end in the first direction of the mounting surface. For example, the sheet recovery device of claim 1 or 2, wherein in the above-mentioned sheet recovery body, the loading surface of the sheet received from the moving direction guide body is lowered from the negative side toward the positive side along the second direction. tilt. For example, the sheet recovery device of claim 1 or 2, wherein the sheet recovery system is provided with an upright wall surface at an end on the positive side of the second direction of the stacking surface of the sheet guided from the moving direction guide. For example, the sheet recovery device of claim 1 or 2, wherein in the above-mentioned sheet recovery body, the stacking surface of the sheet received from the moving direction guide is lowered along the first direction from the upstream side toward the downstream side. Way leaning. A sheet conveying and recycling system includes: a sheet conveying device that conveys a sheet from an upstream side to a downstream side along a first direction on a conveying surface and accumulates and recovers the sheet reaching the downstream end of the conveying surface; and such as The sheet recovery device according to any one of claims 1 to 7; the conveying device includes a sheet path changing mechanism that selects a specific sheet from the sheets conveyed on the conveying surface Before reaching the downstream end of the conveying surface, it is guided downward under the conveying surface, and a sheet guided to the lower side of the conveying surface is received by the placement surface of the above-mentioned moving direction guide, and the sheet is recovered into the above-mentioned sheet recovery body . For example, the sheet conveying and recovering system of claim 8, wherein in the above-mentioned sheet recovering device, the edge on the positive side of the second direction of the placement surface of the moving direction guide is located below the conveying surface. The edge on the positive side of the second direction of the material is closer to the negative side of the second direction. A sheet recovery method is a method for collecting and recovering a sheet that moves from the upstream side to the downstream side in a first direction on a conveying surface and is guided below the conveying surface to a sheet recovery body located below the conveying surface. , The sheet guided to the lower side of the conveying surface is received by the placement surface of the guide body in the direction of movement below the conveying surface, and the sheet is moved on the placing surface, thereby giving the sheet a first The movement direction of the sheet is changed by the amount of movement on the positive side of the one direction orthogonal to the second direction, and the sheet whose movement direction has been changed by the movement direction guide is recovered into the sheet recovery body, and the sheet recovery body is positioned to move more than the above. The mounting surface of the direction guide is further below and on the positive side of the second direction orthogonal to the first direction. For example, the method for recovering a sheet of item 10, wherein the specific sheet selected from the sheets conveyed on the conveying surface is guided below the conveying surface before reaching the downstream end of the conveying surface, and the specific sheet is guided. The material is recovered into the recovery body.