TWI798235B - Sheet recovery device, sheet conveyance recovery system, and sheet recovery method - Google Patents

Abstract

The recovery device (50) of the present invention includes: a moving direction guide body (30), which accepts the sheet moving from the upstream side to the downstream side along the first direction and changes the moving direction; and a sheet recovery body (40), which accepts Sheets are guided from the moving direction guide body and collected and recycled. In the moving direction guide body, the loading surface (31) for receiving the sheet is inclined in such a way as to decrease from the upstream side toward the downstream side along the first direction, and faces from the negative side along the second direction perpendicular to the first direction. The positive side is lowered and tilted. The sheet recycling body is located below the loading surface of the moving direction guide body and on the positive side in the second direction.

Description

Sheet recovery device, sheet conveyance recovery system, and sheet recovery method

The present invention relates to a sheet recycling device for accumulating and recycling sheet products conveyed by a conveying device, and a sheet conveying and recycling system combining the sheet conveying device and the sheet recycling device. Furthermore, the present invention relates to a sheet recycling method using a sheet recycling device.

In the manufacturing steps of paper, film, steel plate, etc., the long web is cut into a specific size and processed into a single sheet. A single sheet moves along the 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 single sheet conveying device, and the non-standard products judged to be non-standard by inspection are guided to a conveying path different from the qualified products judged to be within the standard, so that it can be transported Downstream of the device, only qualified products are selectively recovered. For example, the conveying device of Patent Document 1 is configured such that a switching door is provided at the connecting portion between conveyors for horizontal conveying, and when a non-standard product is conveyed, the door is opened, and the sheet is placed below the conveying surface. The inclined conveyor guide. In this kind of conveying device, qualified products are conveyed horizontally on the conveying surface and accumulated by the qualified product recovery section downstream of the conveying path, and non-standard products slide down to the bottom of the conveying surface and are accumulated and recovered.

The method of guiding non-standard products to the lower side of the conveying surface uses the sliding of the sheet caused by gravity, so the switching of the conveying path is smooth. Therefore, when a defective sheet is conveyed on the conveyance path, it is not necessary to stop the conveyance in order to switch the sheet conveyance path, and the efficiency of sorting and recycling of sheet products can be improved. [Prior Art Document] [Patent Document]

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

[Problem to be solved by the invention]

In the case of guiding and sorting non-standard sheets below the conveying surface, the sheets guided below will be forced by gravity, so it is easy to cause collisions with recycling boxes during recycling. Damage or deformation of the sheet, etc. When the sheet guided downward is a defective product to be discarded, there is no particular problem even if it is damaged or deformed. On the other hand, when the sheet guided below the conveying surface is a sheet that is inferior in quality to a qualified product but can still be used as a finished product (so-called B-grade product), it must be protected from damage or deformation, etc. The sheets are recycled without reducing the value of the product.

The object of the present invention is to provide a sheet recycling device capable of recycling sheets moving on the conveying surface of the conveying device without damaging the value of the product. [Technical means to solve the problem]

The present invention relates to a sheet recycling method in which the sheets moving from the upstream side to the downstream side along the first direction on the conveying surface and guided to the lower side of the conveying surface are accumulated and collected in a sheet recycling body located below the conveying surface A method and a sheet recycling device used in the sheet recycling method. The sheet collecting device includes a sheet moving direction guide and a sheet accumulating and collecting body. The sheet moving direction guide receives the sheet moving from the upstream side to the downstream side along the first direction and changes the moving direction. The sheet accumulating and recycling body accepts the sheets moved from the sheet moving direction guide body and folds them flat for recycling.

As for the movement direction guide, it is preferable that the loading surface which receives the sheet|seat is inclined so that it may fall from the negative side toward the positive side along the 2nd direction orthogonal to the 1st direction. The mounting surface of the movement direction guide is preferably inclined so as to decrease from the upstream side toward the downstream side along the first direction. The sheet recycling body is located below the loading surface of the moving direction guide body and on the positive side in the second direction.

The moving direction guide preferably has a curved surface portion that gradually rises toward the downstream side at the downstream end of the loading surface in the first direction. By having a raised curved surface at the downstream end of the loading 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 recycling body.

In the sheet recycling body, it is preferable that the stacking surface receiving the sheets guided by the moving direction guide body is inclined along the second direction so as to decrease from the negative side toward the positive side. The stacking surface of the sheet recovery body is preferably inclined so as to decrease from the upstream side toward the downstream side along the first direction. By inclining the stacking surface of the sheet recovery body, it is possible to reduce the impact of the sheet moving from the moving direction guide and contact the stacking surface, thereby further suppressing damage or deformation of the sheet.

Preferably, an upright wall surface for receiving the sheets guided by the moving direction guide is provided at the end of the stacking surface of the sheet recycling body on the positive side in the second direction. By providing the vertical wall surface at the end of the second direction, the stacking position of the sheets on the stacking surface can be stabilized, thereby improving the efficiency of the recycling operation of the sheets.

Furthermore, the present invention relates to a sheet conveying and collecting system including a sheet conveying device and the sheet collecting device described above. [Effect of Invention]

The sheet recycling device changes the moving direction of the sheet and guides the sheet to the stacking surface of the sheet recycling body through the action of the moving direction guide body with an inclined loading surface. Therefore, even when the sheet guided downward from the sheet conveying surface of the sheet conveying device is biased by gravity, the impact of the sheet recovery body when it comes into contact with the sheet is small, and the sheet can be suppressed. The value of the product is reduced due to damage or deformation during material recycling.

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

The sheet conveyance device 10 conveys the sheet 2 from the upstream side (−y side) toward the downstream side (+y side) in the first direction (y-axis direction) as the conveyance direction on a conveyance surface constituted by a 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 dropped by gravity, stacked and collected in the sheet recovery box 20 located below the conveying surface. If the sheet recovery box 20 is arranged near the downstream end of the conveying surface in advance, the sheet 5 will be stacked flat on the stacking surface 21 of the sheet recycling box 20 before it completely breaks away from the conveying surface and falls freely. The sheets 26 on the surface are in contact with each other, and are flatly stacked on the stacking surface 21 (or first flatly stacked on the sheets on the stacking surface) in a sliding manner. Therefore, the impact when the sheet 5 is in contact with the sheet recycling box 20 is small, and damage and deformation of the sheet due to the impact during recycling are less likely to occur.

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

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

The sheet guided to the lower side of the sheet conveying surface maintains the amount of movement toward the downstream side (+y side) in the first direction on the conveying surface, and is given a vertically downward direction (- z side) amount of exercise. The sheet 104 having the amount of movement in the +y direction and the −z direction is received by the loading surface 31 of the moving direction guide 30 of the sheet recovery device 50 . The sheet received by the loading surface 31 of the moving direction guide body 30 is given a moving amount on the positive side (+x side) in the second direction by moving on the loading surface 31 , thereby changing the moving direction of the sheet.

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

Fig. 6 is a top view of the previous sheet conveying and recycling system, and Fig. 7 is a front view of the conventional sheet conveying and recycling system. The system shown in Figures 6 and 7 includes the same sheet conveying device 10 as the system shown in Figures 1 to 3, and the sheet 5 that has reached the downstream end of the sheet conveying surface formed by a plurality of rollers 11 is flat Stack and collect and collect in the sheet material recovery box 20.

The conventional sheet conveying and collecting system differs from the sheet conveying and collecting system of the present invention in that the method of collecting sheets guided below the conveying surface is different. In the previous sheet conveying and recycling system, the sheet 204 guided to the lower side of the conveying surface by the sheet path changing mechanism 18 is released from the sheet recycling box 240 provided below the conveying surface according to the inspection result at the upstream of the conveying path. Recycle.

Rollers and their power mechanisms are arranged below the sheet conveying surface. In order to avoid positional interference with these devices, the sheet recovery box 240 is arranged at a position away from the sheet conveying surface. The sheet 204 that is guided to the bottom of the conveying surface will be on the stacking surface 241 of the sheet recovery box 240 or on the sheet 246 first flatly stacked on the stacking surface, or with the +y set on the stacking surface 241 The upright wall surfaces 243 at the ends of the sides collide with each other. Since the sheet recovery box 240 is arranged away from the conveyance surface, the sheet 204 is biased by gravity while falling downward. Therefore, when being recovered by the sheet recovery box, the moving speed of the sheet 204 becomes larger, and there is a sheet 246 that is stacked flat on the stack surface 241 or the sheet material 246 that is first flattened on the stack surface 241 of the sheet recovery box 240. When the sheet material is deformed or damaged due to the impact when it collides with the vertical wall surface 243 .

When the sheet guided below the conveying surface is a defective product scheduled to be discarded, there is no particular problem even if it is deformed or damaged when being collected by the sheet recycling box. On the other hand, when the sheet guided below the conveying surface can be used as a product, in order to prevent the value of the product from being damaged or deformed, it is necessary to reduce the collision during recycling.

The sheet conveying and collecting system of the present invention is equipped with a sheet collecting device 50 below the sheet conveying surface, and accepts and collects sheets from the sheet conveying device 10 in two stages of the moving direction guide body 30 and the sheet collecting body 40 The conveying surface is guided to the sheet below. Therefore, even when the sheet guided to the lower side of the conveyance surface is urged by gravity, the speed of the sheet moving direction (x direction) when being collected by the sheet collecting body 40 is small, and it is possible to prevent the Deformation or damage caused by collision, etc.

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

The sheet 104 guided downward from the sheet conveying surface comes into contact with the loading surface 31 of the moving direction guide 30 arranged below the conveying surface, as shown in FIG. 5(A) . The sheet material 104 not only has the amount of movement towards the +y direction on the conveying surface, but also has the amount of movement in the -z direction due to the gravity when it slides downward from the conveying surface. The short side) is in contact with the loading surface 31 in the falling posture of the falling front end.

If the loading surface 31 of the moving direction guide 30 is inclined along the y-axis direction from the -y side to the +y side, the sheet 104 in the falling posture with the side on the +y side as the falling front end can slide in. Landing on the loading surface 31 at a smaller angle. Therefore, damage or deformation of the sheet 104 due to contact with the moving direction guide body 30 is less likely to occur.

When the mounting surface 31 of the moving direction guide 30 is inclined along the x-axis direction so as to be lowered from the -x side toward the +x side, as schematically shown in FIG. 5(B), in the +y direction At the point P where the sheet 104 that moves sideways contacts the loading surface 31 , a force toward the +y side and a force toward the +x side act due to gravity, and a movement amount in the +x direction is given to the sheet 104 . That is, since the loading surface 31 of the moving direction guide 30 is inclined in the x-axis direction, the sheet 104 received by the loading 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 of the loading surface 31 in the x-axis direction is preferably 3° or more, more preferably 5° or more. If the inclination angle is too large, the sheet may be damaged or deformed due to the impact when the sheet comes into contact with the sheet recovery body due to the increase in the amount of movement in the x direction. Therefore, the inclination angle α is preferably 40° or less, more preferably 30° or less.

As shown in FIG. 5(A), the end edge on the +x side of the loading surface 31 of the guide body 30 in the moving direction is located closer to − than the end edge on the +x side of the sheet 104 guided below the conveying surface. In the case of the x side, as shown in FIG. At the point P where the sheet 104 meets the loading surface 31, the vertical resistance from the loading surface 31 acts on the sheet 104. On the other hand, at the point Q that is not in contact with the loading surface, no The reaction force relative to gravity. Therefore, the sheet 104 moves in the +x direction due to the action of the moment.

When the edge of the +x side of the loading surface 31 of the moving direction guide 30 is located on the -x side of the edge of the +x side of the sheet 104 guided below the conveying surface, even if it is loaded Even if the surface 31 is not inclined along the x-axis direction, a movement amount in the +x direction can be given to the sheet moving on the loading surface 31 . If the end edge of the +x side of the loading surface 31 is located on the -x side than the +x side edge of the sheet 104 guided below the conveying surface, and the loading surface 31 is directed from the -x side to +x If the lower side 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 edge 32 on the positive side in the second direction of the mounting surface 31 is not parallel to the y-axis direction and is inclined so that the x-coordinate of the downstream side (+y side) becomes smaller (see Fig. 2) As the sheet 104 moves in the +y direction, the area on the -x side of the sheet 104 in contact with the loading surface 31 becomes smaller, and the non-contact area on the +x side and the stacking surface becomes larger. Therefore, the movement of the sheet 104 to the +x direction by the action of the moment can be further promoted.

As shown in FIG. That is, under the action of the moving direction guide 30, the sheet 104 is moved in the x-axis direction perpendicular to the moving direction (y-axis direction) when falling from the conveying surface, and is guided to the stack of the sheet recycling body 40. On surface 41.

The sheet guided to the stacking surface 41 of the sheet recovery body 40 touches the stacking surface 41 with the side on the +x side (the long side of the rectangular sheet in FIG. 5 ) as the falling front end. If the stacking surface 41 is inclined along the x-axis direction from the -x side to the +x side, the sheet 104 in the falling posture with the edge on the +x side as the falling front end slides in at a smaller amount. Landing on the stacking surface 41 at an angle, the sheet 104 is not easily damaged or deformed due to contact with the stacking surface 41 . Also, if the stacking surface 41 is inclined along the y-axis direction so as to be lowered from the −y side toward the +y side, the angle at which the long side of the sheet 104 that becomes the falling front end contacts the stacking surface 41 becomes smaller. , it is not easy to damage or deform the sheet 104 due to contact with the stacking surface 41 of the sheet recovery body 40 .

Preferably, a gradually rising curved surface shape is provided at the end of the loading 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 will decrease, and the movement in the x direction plays a dominant role in the movement of the sheet 104 . By reducing the amount of movement in the y direction (stopping the movement in the y direction) by the sheet 104 after touching the raised curved surface 33, the sheet 104 moving on the loading surface 31 can be moved at a fixed position and folded flat to the position On the stacking 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 surface shape, it can be used without the impact caused by the collision between the end portion of the sheet in the +y direction and the raised portion. The amount of movement in the y direction of the sheet 104 is reduced.

As shown in FIG. Preferably, at the end of the stacking surface 41 on the +x side, an upright wall surface 42 for the sheets 104 to abut against is provided. By providing the vertical wall surface 42 , the sheet 104 moved from the moving direction guide 30 can be stopped at a specific position and can be flatly stacked on the stacking surface 41 .

Preferably, the vertical wall surface 42 provided at the end of the sheet recovery body 40 in the +x direction extends parallel to the extending direction of the end edge on the positive side of the loading surface 31 of the moving direction guide 30 in the second direction. If the vertical wall surface 42 is parallel to the end edge of the loading surface 31 , the impact when the front end of the sheet 104 moved from the moving direction guide 30 abuts against the vertical wall surface 42 becomes smaller. Therefore, breakage or deformation of the sheet can be suppressed. Moreover, since the posture of the front end of the sheet 104 abutting against the vertical wall 42 is stable, the accumulation position of the sheets in the sheet recovery body 40 is stable, and it is easy to recover a plurality of sheets accumulated in the sheet recovery body 40 .

As described above, the sheet recovery device 50 receives the sheet 104 on the loading surface 31 of the moving direction guide 30 , and gives the sheet a movement amount in the x direction as the sheet moves on the loading surface 31 . Thereby, the sheet 104 moves along the x direction, and is stacked flat on the stacking surface 41 of the sheet recycling body 40 . In this way, in the sheet collecting device 50, the moving direction guide body 30 changes the moving direction of the sheet, so that the falling front end of the sheet 104 received by the sheet collecting body 40 and the falling front end of the sheet when falling from the conveying surface different. Therefore, in the sheet recovery method of the present invention, even when the sheet recovery device 50 is arranged at a position away from the sheet conveyance surface, and the sheet guided downward from the conveyance surface is biased by gravity, It is also possible to suppress damage or impact due to impact at the time of recovery by the sheet recovery body 40 .

The sheets accumulated in the sheet recovery body 40 are moved to other places and used in the subsequent steps. The so-called follow-up steps refer to inspection, packaging, shipment, lamination with other components (such as image display panels such as liquid crystal units), etc. The movement of the sheets from the sheet recycling body to other places can be carried out using appropriate automatic conveying devices, etc., or manually carried by operators.

When the operator manually transports the sheets accumulated in the sheet recovery box 240 directly below the conveying surface as shown in FIG. On the other hand, in the sheet collecting device 50, as shown in FIGS. (more on the +x side than the edge). Therefore, in the method of the present invention, it is easy to recover the sheets accumulated in the sheet recovery body 40, and the safety of work is also improved.

In the above, an example in which a flexible sheet guided to the lower side of the conveying surface is recovered by the sheet recovering device 50 in the sheet conveying and collecting system shown in FIG. 1 has been described, but the present invention is not limited to the above. form.

The sheet collecting device 50 of the present invention changes the moving direction of the sheet by using the inclination of the loading surface 31 of the moving direction guide 30 , etc., and collects the sheet using the sheet collecting body 40 . This sheet recovery method can also be applied to sheets other than the sheets discharged below the conveyance 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 conveyance surface. As described above, the sheet recovery box may be arranged at the downstream end of the conveyance surface and in the vicinity of the conveyance surface. Therefore, the acceleration of the sheet due to gravity is smaller than that of the sheet discharged to the lower side of the conveying surface. Using the sheet recycling device of the present invention can further suppress damage or deformation during recycling.

The sheet conveying surface of the sheet conveying device is preferably a horizontal surface, but may also 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 to the downstream side. The sheet conveying device is not limited to the rotating roller, and the sheet conveying surface may be constituted by an endless belt or the like.

The sheet path changing mechanism for guiding the sheet on the conveying surface downward is not limited to the air blowing method. For example, a press roller that can be raised and lowered can also be installed above the conveying surface. When the sheet that should be guided downward is conveyed and the front end of the sheet reaches directly below the press roller, the press roller descends from above and pushes the sheet toward the bottom. Press down to guide the sheet below the conveying surface.

It is also possible to deform the conveying surface of the sheet conveying device 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 formed by the endless belt 110 wound around the rotating shafts 115, 116 can be inclined, thereby moving the sheet on the conveyor. The material 103 is guided downward. Also, as shown in FIG. 9, by moving the rotating shaft 125 of the conveyor upward, the conveying surface formed by the endless belt 120 wound on the rotating shafts 125, 126 can be inclined to push the sheet 103 toward it. Guide below.

The sheet guided to the lower side of the conveying surface can be directly guided from the conveying surface to the loading surface 31 of the moving direction guide 30, or can be temporarily guided to the guide and then be guided by the loading surface of the moving direction guiding body. undertake. In addition, as shown in FIG. 8 , the sheet 103 may slide down along an inclined conveying path (endless belt 110 ) and then be received by the loading surface of the moving direction guide.

The sheet guided below the conveying surface and the sheet conveyed downstream of the conveying surface without being guided downward may be sorted according to predetermined criteria. The screening 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 (A-grade product), it is conveyed to the downstream end of the conveying surface and recovered in the sheet recovery box 20, which does not meet the pass criteria but has The value of the product (grade B product) may be guided below the conveying surface and collected into the sheet recycling body 40 of the sheet recycling device 50 . By using the sheet recovery device 50 of the present invention, damage or deformation of the sheet product guided below the conveying surface can be prevented. Therefore, it is also possible to guide the A-grade product to the lower side of the conveyance surface and collect it into the sheet recovery body 40 of the sheet recovery device 50 .

The transport device may include a plurality of sheet path changing mechanisms along the transport direction. For example, it is also possible to use the sheet path changing mechanism installed on the upstream side of the conveying path to guide the unqualified products to the lower side of the conveying surface, and use the sheet path changing mechanism installed on the downstream side to guide the B-grade products to the conveying surface. Guide below. It is also possible to install more than three path changing mechanisms along the conveying direction of the conveying device.

The inspection method on the upstream side of the sheet conveying device may be an automatic inspection by the inspection device 83 or a visual inspection by an inspector. When the sheet is an optical film, inspection items include: parts containing foreign matter such as foreign matter, air bubbles, and dirt; deformed parts such as scratches and damage; film thickness, optical characteristics, and the like.

A sheet cutting device may be provided upstream of the sheet conveying device. For example, the sheet-shaped product unwound from the winding body of the elongated web may be cut to a specific size by a sheet cutting device, and then conveyed to the conveying surface of the sheet conveying device. In this case, inspection can be performed both before and after cutting. It is also possible to roll out the long web that has been inspected in advance from the winding body, and cut it to a specific size with a cutting device. As long as the position information of the defect obtained by the prior inspection is stored in the memory 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, When a single sheet including a defect is conveyed, it is only necessary to operate the sheet path changing mechanism to guide the sheet below the conveying surface.

In Fig. 1 to Fig. 5, an example is shown in which a single sheet is cut so that the conveyance 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 is also possible to convey 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. When a single sheet cut out so that the width direction becomes the long side of a rectangle is guided below the conveying surface, the single sheet is moved by the direction guide 30 in a falling position with the long side of the rectangle as the falling front end. The loading surface 31 accepts, and then changes the moving direction, and the short side of the rectangle is the falling front end to be accepted by the stacking surface 41 of the sheet recycling body and recovered by flat stacking.

When the size or the cutting direction of the flexible sheet changes, the bending shape or amount of bending may change. By using the sheet recovery device of the present invention, regardless of the bending shape or amount of bending of the sheet, the moving direction guide body can be used to receive the sheet, change the moving direction of the sheet and reduce the speed, and then collect the sheet Guided to the sheet recycler. The sheet recovery device of the present invention is not limited to flexible sheets such as optical films, and is also applicable to the recovery of rigid sheets such as steel plates.

In the sheet conveying and collecting system of the present invention, the sheet collecting device 50 may be fixed to the sheet conveying device 10 , or may be installed so as to be detachable from the sheet conveying device 10 . The moving direction guide body 30 and the sheet collecting body 40 of the sheet collecting device 50 may be integrally fixed or may be separable. For example, the sheet collecting device 50 may be configured to be movable by providing wheels 38 , 48 and the like at the lower portions of the moving direction guide body 30 and the sheet collecting body 40 . If the moving direction guide body 30 is configured to be movable, the position or angle of the end edge 32 of the loading surface 31 can be easily adjusted, so that the cutting direction, size, and falling posture of the sheet can be realized. optimization. In addition, by adjusting the position of the sheet collecting body 40 according to the arrangement of the moving direction guide 30 , damage or deformation of the sheet moving from the moving direction guiding body to the sheet collecting body 40 can be reduced.

2‧‧‧Sheet 5‧‧‧Sheet 10‧‧‧Conveyor 11‧‧‧Roller 15‧‧‧Roller 16‧‧‧Roller 18‧‧‧Sheet path change equipment (air blowing device) 20‧‧ ‧Sheet recycling box 21‧‧‧stacking surface 26‧‧‧sheet 30‧‧‧moving direction guide 31‧‧‧loading surface 32‧‧‧edge 33‧‧‧rising surface 38‧‧‧ Wheel 40‧‧‧sheet recycling body 41‧‧‧stacking surface 42‧‧‧vertical wall surface 48‧‧‧wheel 50‧‧‧sheet recycling device 83‧‧‧checking device 85‧‧‧memory unit 88‧‧ ‧Control part 103‧‧‧Sheet 104‧‧‧Sheet 110‧‧‧Endless belt 115, 116‧‧‧Rotating shaft 120‧‧‧Endless belt 125, 126‧‧‧Rotating shaft 204‧‧‧Sheet 240 .

Fig. 1 is a schematic perspective view of a sheet conveying and collecting system. Fig. 2 is a top view of the sheet conveying and recycling system. Fig. 3 is a front view of the sheet conveying and collecting system. Fig. 4 is a sectional view of the sheet recovery device. 5(A) to (D) are conceptual diagrams for explaining a situation in which sheets are recovered by a sheet recovery device. Fig. 6 is a top view of a conventional sheet conveying and recycling system. Fig. 7 is a front view of a conventional sheet conveying and collecting 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.

2‧‧‧sheet

5‧‧‧sheet

10‧‧‧Conveyor

11‧‧‧Roller

15‧‧‧Roller

16‧‧‧Roller

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

20‧‧‧Sheet recycling bin

21‧‧‧Stacking surface

26‧‧‧sheet

30‧‧‧Movement direction guide body

31‧‧‧Loading surface

38‧‧‧wheel

40‧‧‧Sheet recycling body

41‧‧‧Stacking surface

42‧‧‧upright wall

48‧‧‧wheel

50‧‧‧Sheet recycling device

83‧‧‧Inspection device

85‧‧‧memory

88‧‧‧Control Department

103‧‧‧sheet

104‧‧‧sheet

Claims (9)

A sheet recycling device, comprising: a moving direction guide body, which accepts a sheet moving from an upstream side to a downstream side along a first direction and changes the moving direction; and a sheet recycling body, which receives the moving The sheets guided by the direction guide body are collected and recycled; the above-mentioned moving direction guide body has a loading surface for receiving the sheet materials, and the above-mentioned sheet material recycling body is located below the loading surface of the above-mentioned moving direction guide body and is connected to the second One direction is perpendicular to the positive side of the second direction; the stacking surface receiving the sheets guided by the above-mentioned moving direction guide body is inclined along the first direction in a way that is lowered from the upstream side to the downstream side, and in the above-mentioned stack An upright wall is provided at the end of the positive side of the loading surface in the second direction. The sheet recovery device according to claim 1, wherein the loading surface of the moving direction guide body is inclined along the second direction so as to descend 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 body is inclined along the first direction so as to decrease from the upstream side toward the downstream side. The sheet recycling device according to claim 1 or 2, wherein the moving direction guide has a curved surface portion that gradually rises toward the downstream side at the downstream end of the loading surface in the first direction. The sheet recycling device according to claim 1 or 2, wherein in the sheet recycling body, the stacking surface receiving the sheets guided by the moving direction guide is along the second direction from the negative side to the positive side The way of lowering is inclined. A sheet conveying and recycling system, which includes: a sheet conveying device, which conveys the sheet along a first direction from the upstream side to the downstream side on the conveying surface and accumulates and recovers the sheets reaching the downstream end of the conveying surface; and The sheet recovery device according to any one of claims 1 to 5; the conveying device has a sheet path changing mechanism that selects specific sheets selected from the sheets conveyed on the conveying surface Guide to the bottom of the conveying surface before reaching the downstream end of the conveying surface, and receive the sheet guided to the lower part of the conveying surface by the loading surface of the above-mentioned moving direction guide body, and collect and collect the sheet to the above-mentioned sheet recovery The stacking surface of the body. The sheet conveying and collecting system according to claim 6, wherein in the sheet collecting device, the end edge on the positive side in the second direction of the loading surface of the moving direction guide body is located on the sheet that is guided to the lower side of the conveying surface. The edge of the material on the positive side in the second direction is closer to the negative side in the second direction. A sheet recycling method, which is to accumulate and recover the sheet moving from the upstream side to the downstream side along the first direction on the conveying surface and guided to the lower part of the conveying surface to the sheet recycling body located below the conveying surface On the stacking surface, the sheet guided to the lower side of the conveying surface is received by the loading surface of the moving direction guide located below the conveying surface, and the sheet is moved on the above-mentioned loading surface, so as to align the sheet The moving direction of the sheet is changed by giving the positive side of the second direction perpendicular to the first direction, and the sheet whose moving direction is changed by the above-mentioned moving direction guide body is collected on the stacking surface of the sheet recycling body, The sheet recovery body is located below the loading surface of the above-mentioned moving direction guide And the positive side of the second direction perpendicular to the first direction; the stacking surface of the above-mentioned sheet recycling body receiving the sheets guided by the above-mentioned moving direction guide is along the first direction from the upstream side to the downstream side The way of lowering is inclined, and an upright wall is provided at the end of the positive side of the second direction of the above-mentioned loading surface. The sheet recycling method according to Claim 8, wherein the specific sheet selected from the sheets conveyed on the above-mentioned conveying surface is guided to the lower side of the conveying surface before reaching the downstream end of the conveying surface, and the above-mentioned specified sheet is The material is recycled into the above-mentioned recycling body.

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