Monitoring mechanism, transport device, supply system, control device, transport device control method, and program

Abstract

A monitoring mechanism, a conveying device, a supply system, a control device, a control method for a conveying device, and a program are provided that more effectively prevent errors in supplying sheet-like articles that are fed out. [Solution] The monitoring mechanism comprises a detection unit that detects the state of the topmost sheet-like item among multiple sheet-like items sent out from the holding unit; a forward / backward member that is provided below the conveying path and is capable of moving forward and backward in the vertical direction and is capable of pressing the sent-out topmost sheet-like item upward; and a control unit that, based on the state of the topmost sheet-like item, switches between a first state in which the forward / backward member is raised to bring the front tip of the topmost sheet-like item in the conveying direction into contact with an upper roller located above the conveying path, and a second state in which the forward / backward member is lowered to bring the tip of the topmost sheet-like item into contact with a lower roller located below the conveying path.

Description

[Technical Field]

[0001] The present disclosure relates to a monitoring mechanism, a conveying device, a supply system, a control device, a control method for a conveying device, and a program. [Background technology]

[0002] 2. Description of the Related Art A sheet-like article feeding mechanism is known that feeds out a plurality of stacked sheet-like articles one by one.

[0003] For example, Patent Document 1 describes a configuration equipped with a conveyance resistance applying means that can change the conveyance resistance applied to sheet-like items (documents) fed from a document tray according to the thickness of the sheet-like items. In this configuration, a pre-separation guide that applies conveyance resistance to the sheet-like items can be switched between a first position where it contacts the sheet-like items and a second position that is lower. The pre-separation guide contacts the sheet-like items when the sheet-like items are thin paper or regular paper, and moves away from the sheet-like items when the sheet-like items are thick paper. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-155018 Summary of the Invention [Problem to be solved by the invention]

[0005] In the configuration described in Patent Document 1, it is desired to more effectively prevent errors in feeding the sheet-like articles.

[0006] An object of the present disclosure is to provide a monitoring mechanism, a conveying device, a supply system, a control device, a control method for a conveying device, and a program that solve the above-mentioned problems. [Means for solving the problem]

[0007] A monitoring mechanism according to one aspect of the present disclosure comprises a detection unit that detects the state of the topmost sheet-like item among a plurality of sheet-like items fed out from a holding unit in which the plurality of sheet-like items are stacked; a forward / backward member that is provided below the conveying path of the fed out topmost sheet-like item and is capable of moving forward and backward in the vertical direction and is capable of pressing the fed out topmost sheet-like item upward; and a control unit that, based on the state of the topmost sheet-like item, switches between a first state in which the forward / backward member is raised to bring the front tip of the topmost sheet-like item in the conveying direction into contact with an upper roller located above the conveying path, and a second state in which the forward / backward member is lowered to bring the tip of the topmost sheet-like item into contact with a lower roller located below the conveying path.

[0008] A conveying device according to one aspect of the present disclosure includes a feed roller that feeds out an uppermost sheet-like item from a holding section in which a plurality of sheet-like items are stacked, an upper roller that is positioned above a conveying path of the fed-out uppermost sheet-like item and applies a first frictional force to an upper surface of the uppermost sheet-like item toward a forward direction in a conveying direction of the uppermost sheet-like item, a lower roller that is positioned below the conveying path and applies a second frictional force to a lower surface of the uppermost sheet-like item toward a rearward direction in the conveying direction, and a roller that applies a second frictional force to a lower surface of the uppermost sheet-like item toward a rearward direction in the conveying direction. The device comprises a detection unit that detects the state of the topmost sheet-like item; a forward / backward member that is provided below the conveying path and is capable of moving forward and backward in the vertical direction and that can press the topmost sheet-like item upward after it has been fed; and a control unit that, based on the state of the topmost sheet-like item, switches between a first state in which the forward / backward member is raised to bring the front end of the topmost sheet-like item in the conveying direction into contact with the upper roller, and a second state in which the forward / backward member is lowered to bring the front end of the topmost sheet-like item into contact with the lower roller.

[0009] A supply system according to one aspect of the present disclosure includes a holding section in which a plurality of sheet-like articles are stacked, a feed roller that feeds out an uppermost sheet-like article from the holding section, an upper roller that is positioned above a conveyance path of the fed-out uppermost sheet-like article and applies a first frictional force to an upper surface of the fed-out uppermost sheet-like article toward the front in the conveyance direction of the uppermost sheet-like article, a lower roller that is positioned below the conveyance path and applies a second frictional force to a lower surface of the uppermost sheet-like article toward the rear in the conveyance direction, and a feed roller that feeds out an uppermost sheet-like article from the holding section. a detection unit that detects the state of the topmost sheet-like item that has been fed; a forward / backward member that is provided below the conveying path and is capable of moving forward and backward in the vertical direction and that can press the fed topmost sheet-like item upward; and a control unit that, based on the state of the topmost sheet-like item, switches between a first state in which the forward / backward member is raised to bring the front end of the topmost sheet-like item in the conveying direction into contact with the upper roller, and a second state in which the forward / backward member is lowered to bring the front end of the topmost sheet-like item into contact with the lower roller.

[0010] A control device according to one aspect of the present disclosure includes a feed roller that feeds out an uppermost sheet-like item from a holding section in which a plurality of sheet-like items are stacked, an upper roller that is located above a conveyance path of the fed-out uppermost sheet-like item and applies a first frictional force to an upper surface of the uppermost sheet-like item toward the front in the conveyance direction of the uppermost sheet-like item, a lower roller that is located below the conveyance path and applies a second frictional force to a lower surface of the uppermost sheet-like item toward the rear in the conveyance direction, a detection section that detects a state of the fed-out uppermost sheet-like item, and a detection section that detects a state of the fed-out uppermost sheet-like item. A control device for controlling a conveying device that has a forward / backward member that is provided on the bottom and can move forward and backward in the vertical direction, and that can press the topmost sheet-like item upward when it is fed out, and includes: an acquisition unit that acquires the state of the topmost sheet-like item detected by the detection unit; and a forward / backward control unit that, based on the state of the topmost sheet-like item, can switch between a first state in which the forward / backward member is raised to bring the front tip of the topmost sheet-like item in the conveying direction into contact with the upper roller, and a second state in which the forward / backward member is lowered to bring the tip of the topmost sheet-like item into contact with the lower roller.

[0011] A control method for a conveying device according to one aspect of the present disclosure includes a feed roller that feeds out an uppermost sheet-like item from a holding section in which a plurality of sheet-like items are stacked, an upper roller that is positioned above a conveyance path of the fed-out uppermost sheet-like item and applies a first frictional force to an upper surface of the fed-out uppermost sheet-like item toward the front in the conveyance direction of the uppermost sheet-like item, a lower roller that is positioned below the conveyance path and applies a second frictional force to a lower surface of the uppermost sheet-like item toward the rear in the conveyance direction, a detection section that detects a state of the fed-out uppermost sheet-like item, and A control method for a conveying device equipped with a forward / backward member that is provided below a conveying path, is capable of moving forward and backward in the vertical direction, and is capable of pressing the topmost sheet-like item fed out upward, the control method including the steps of: acquiring the state of the topmost sheet-like item detected by the detection unit; and, based on the state of the topmost sheet-like item, switching the forward / backward member to either a first state in which the forward leading end of the topmost sheet-like item in the conveying direction contacts the upper roller, or a second state in which the forward / backward member contacts the lower roller.

[0012] A program according to one aspect of the present disclosure includes a feed roller that feeds out an uppermost sheet-like item from a holding section in which a plurality of sheet-like items are stacked, an upper roller that is positioned above a conveyance path of the fed-out uppermost sheet-like item and applies a first frictional force to an upper surface of the uppermost sheet-like item toward the front in the conveyance direction of the uppermost sheet-like item, a lower roller that is positioned below the conveyance path and applies a second frictional force to a lower surface of the uppermost sheet-like item toward the rear in the conveyance direction, a detection section that detects a state of the fed-out uppermost sheet-like item, and a detection section that detects a state of the fed-out uppermost sheet-like item. The control device of a conveying device is equipped with a forward / backward member that is provided on the bottom and can move forward and backward in the vertical direction and can press the topmost sheet-like item upward when it is fed out, and is made to perform processing including the steps of: acquiring the state of the topmost sheet-like item detected by the detection unit; and, based on the state of the topmost sheet-like item, raising the forward / backward member to switch to either a first state in which the front tip of the topmost sheet-like item in the conveying direction contacts the upper roller, or a second state in which the forward / backward member is lowered to switch the front tip of the topmost sheet-like item to contact the lower roller. [Effects of the Invention]

[0013] According to the above aspect, it is easier to more effectively prevent errors in feeding the sheet-like articles. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a diagram illustrating a configuration of a supply system according to the present disclosure. [Figure 2] 1 is a diagram illustrating a configuration of a portion of a conveying device according to the present disclosure. [Figure 3] 3 is a diagram showing the configuration of a conveying device according to the present disclosure, and is a cross-sectional view taken along the line III-III in FIG. 2. FIG. [Figure 4] 10 is a diagram showing a first state in which the advancing / retracting member of the monitoring mechanism according to the present disclosure is raised. FIG. [Figure 5] 10 is a diagram showing a first state in which the advancing / retracting member of the monitoring mechanism according to the present disclosure is raised. FIG. [Figure 6] 10 is a diagram showing a second state in which the advancing / retreating member of the monitoring mechanism according to the present disclosure is lowered. FIG. [Figure 7] 10 is a flowchart illustrating a flow of a control method for a transport device according to the present disclosure. [Figure 8] FIG. 1 is a diagram illustrating a configuration of a supply system according to an embodiment of the present disclosure. [Figure 9] FIG. 1 is a diagram illustrating a configuration of a monitoring mechanism according to an embodiment of the present disclosure. [Figure 10] FIG. 1 is a diagram illustrating a configuration of a conveying device according to an embodiment of the present disclosure. [Figure 11] FIG. 1 is a diagram illustrating a configuration of a supply system according to an embodiment of the present disclosure. [Figure 12] FIG. 2 is a diagram illustrating a configuration of a control device according to an embodiment of the present disclosure. [Figure 13] 10 is a flowchart illustrating a flow of a control method for a transport device according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0015] Each embodiment will be described below with reference to the drawings. In all drawings, the same or corresponding components are denoted by the same reference numerals, and common descriptions will be omitted. It should be noted that in this disclosure, the drawings may relate to one or more embodiments.

[0016] First Embodiment Hereinafter, an embodiment according to the present disclosure will be described with reference to the drawings. As shown in Fig. 1, the supply system 1A includes a holding unit 2 and a conveying device 3A. The holding unit 2 holds a plurality of sheet-like articles 200 stacked in a vertical direction Dv. Examples of the sheet-like articles 200 include paper sheets and films. The conveying device 3A feeds the sheet-like articles 200 one by one from the holding unit 2 in which the plurality of sheet-like articles 200 are stacked.

[0017] In the following description, the direction in which the sheet-like article 200 moves when the conveying device 3A delivers the sheet-like article 200 from the holder 2 is referred to as the conveying direction D. In this embodiment, the conveying direction D is along the horizontal direction. The direction in which the sheet-like article 200 is delivered from the holder 2 is referred to as the forward direction Df of the conveying direction D, and the opposite direction is referred to as the rearward direction Dr of the conveying direction D. The direction in the horizontal plane that intersects with the conveying direction D is referred to as the width direction Dw.

[0018] The holding portion 2 has a support base 21, a stopper member 22, and a guide member .

[0019] The support base 21 has a support surface 21f extending along a plane (horizontal plane) intersecting with the vertical direction Dv. The support base 21 places a plurality of stacked sheet-like articles 200 on the support surface 21f. The support base 21 is provided so that it can be raised and lowered by a lifting mechanism (not shown). The lifting mechanism sequentially raises the support base 21 in accordance with the number of sheet-like articles 200 held on the support base 21, so that the uppermost sheet-like article 200T of the plurality of stacked sheet-like articles 200 is positioned at a predetermined height.

[0020] The stopper member 22 is provided above the end of the support base 21 at the front Df in the conveying direction D. The stopper member 22 has a rearward surface 22f facing rearward Dr in the conveying direction D. The stopper member 22 restricts the movement of other sheet-like articles 200 below the uppermost sheet-like article 200T, among multiple sheet-like articles 200 stacked on the support base 21, towards the front Df in the conveying direction D by hitting the rearward surface 22f.

[0021] The guide member 23 extends forward Df in the conveying direction D from the upper end of the stopper member 22. The guide member 23 is provided below the conveying path R of the sheet-like article 200 sent out from the holding unit 2. The guide member 23 has a guide surface 23f facing upward. The guide member 23 guides the sheet-like article 200 forward Df in the conveying direction D by aligning the lower surface of the sheet-like article 200 sent out from the holding unit 2 along the guide surface 23f.

[0022] The conveying device 3A feeds out the uppermost sheet-like article 200T one by one from the holding unit 2 in which the sheet-like articles 200 are stacked. As shown in Figures 1 and 2, the conveying device 3A includes a feed roller 31, an upper roller 32, a lower roller 33, and a monitoring mechanism 5A.

[0023] The feed roller 31 is provided above the holding unit 2. The feed roller 31 is provided so as to come into contact with the plurality of sheet-like articles 200 held in the holding unit 2 from above. The feed roller 31 is provided so as to be rotatable about a rotation axis 31c extending in the width direction Dw. The feed roller 31 is formed in a cylindrical or disc shape extending in the width direction Dw. The feed roller 31 is made of, for example, a synthetic resin or a metal. The feed roller 31 may be provided on its outer circumferential surface with a ring member (not shown) made of, for example, a rubber-based material, which increases the frictional force between the feed roller 31 and the sheet-like articles 200.

[0024] 2, the feed roller 31 is driven to rotate in a rotation direction Dc1 around a rotation shaft 31c by a driving mechanism such as a motor (not shown). In this embodiment, the feed roller 31 applies a frictional force F0 to the uppermost sheet-like article 200T in the forward direction Df of the conveyance direction D so as to feed the uppermost sheet-like article 200T forward in the conveyance direction D. The feed roller 31 may be biased downward against the plurality of sheet-like articles 200 held in the holder 2 by a biasing member such as a spring (not shown).

[0025] The upper roller 32 and the lower roller 33 are provided at positions shifted forward Df in the conveying direction D with respect to the holding unit 2. As shown in FIGS. 1 to 3, the upper roller 32 is located above the conveying path R of the uppermost sheet-like object 200T fed by the feed roller 31. The upper roller 32 is rotatable about a rotation shaft 32c parallel to the rotation shaft 31c. The upper roller 32 is formed in a cylindrical or disc shape extending in the width direction Dw. In this embodiment, the upper roller 32 is formed in a disc shape, and a plurality of (for example, two) upper rollers 32 are provided on the rotation shaft 32c at intervals in the width direction Dw.

[0026] The upper roller 32 is made of, for example, synthetic resin or metal. The upper roller 32 may be provided on its outer circumferential surface with a ring member (not shown) made of, for example, a rubber material, which increases the frictional force between the upper roller 32 and the sheet-like article 200. The upper roller 32 may be made of the same material as the feed roller 31, or may be made of a different material from the feed roller 31.

[0027] 2, the upper roller 32 is driven to rotate in a rotation direction Dd1 around a rotation shaft 32c by a driving mechanism such as a motor (not shown). This rotation direction Dd1 is the same as the rotation direction Dc1 of the feed roller 31. In this embodiment, the upper roller 32 applies a first friction force F1 directed forward in the conveyance direction Df to the uppermost sheet-like article 200T so as to feed the uppermost sheet-like article 200T forward in the conveyance direction Df. The upper roller 32 may be biased downward against the uppermost sheet-like article 200T by a biasing member such as a spring (not shown).

[0028] As shown in FIGS. 1 to 3, the lower rollers 33 are located below the conveying path R of the uppermost sheet-like object 200T sent out by the send-out rollers 31. The lower rollers 33 are provided facing the upper rollers 32 in the vertical direction Dv. The lower rollers 33 are provided overlapping the upper rollers 32 in the conveying direction D. The lower rollers 33 are provided rotatably around a rotation axis 33c parallel to the rotation axes 31c and 32c. The lower rollers 33 are formed in a cylindrical or disc-like shape extending in the width direction Dw. In this embodiment, the lower rollers 33 are formed in a disc-like shape, and a plurality of (for example, two) lower rollers 33 are provided on the rotation axis 33c at intervals in the width direction Dw. In this embodiment, the number of lower rollers 33 and the installation intervals in the width direction Dw are the same as those of the upper rollers 32. Each lower roller 33 is provided at the same position as the upper roller 32 in the width direction Dw.

[0029] The lower roller 33 is made of, for example, synthetic resin or metal. The lower roller 33 may be provided on its outer circumferential surface with a ring member (not shown) made of, for example, a rubber-based material, which increases the frictional force between the lower roller 33 and the sheet-like article 200. The lower roller 33 may be made of the same material as the feed roller 31 and the upper roller 32, or may be made of a different material from the feed roller 31 and the upper roller 32.

[0030] 2, the lower roller 33 is driven to rotate in a rotation direction De1 around a rotation shaft 33c by a drive mechanism such as a motor (not shown). The rotation direction De1 of the lower roller 33 is opposite to the rotation directions Dc1 and Dd1 of the feed roller 31 and the upper roller 32. In this embodiment, the lower roller 33 applies a second friction force F2 to the underside of the uppermost sheet-like article 200T toward the rear Dr in the conveying direction D. The lower roller 33 may be biased upward against the uppermost sheet-like article 200T by a biasing member such as a spring (not shown).

[0031] As shown in FIGS. 1 and 2, the monitoring mechanism 5A includes a detection unit 50, a reciprocating member 55A, and a control unit 6. The detection unit 50 detects the state of the uppermost sheet-like article 200T among the multiple sheet-like articles 200 sent out from the holding unit 2. The detection unit 50 in this embodiment includes a multiple feed detection sensor (second sensor) 51, a jam detection sensor (third sensor) 52, and a scratch detection sensor (first sensor) 53.

[0032] The jam detection sensor 52 is provided, for example, behind the upper roller 32 and the lower roller 33 in the conveying direction D, Dr, and in front of the feed roller 31 in the conveying direction D. The multiple feed detection sensor 51 and the scratch detection sensor 53 are provided, for example, in front of the upper roller 32 and the lower roller 33 in the conveying direction D, Df.

[0033] The multiple feed detection sensor 51 can detect a multiple feed state in which not only the topmost sheet-like article 200T but also multiple sheet-like articles 200 are stacked and fed from the holding unit 2 by the feed roller 31. The multiple feed detection sensor 51 can detect a multiple feed state by detecting the thickness and length in the conveying direction D of the sheet-like article 200 fed from the holding unit 2 by the feed roller 31.

[0034] The jam detection sensor 52 can detect a jammed state of the uppermost sheet-like article 200T sent out from the holder 2 by the send-out roller 31. The scratch detection sensor 53 can detect scratches on the leading end 200s of the uppermost sheet-like article 200T fed from the upper roller 32 and the lower roller 33. The scratch detection sensor 53 is, for example, a line sensor that extends in the width direction Dw and scans the leading end 200s of the uppermost sheet-like article 200T to detect whether or not scratches have occurred.

[0035] 2 and 3, the advancing / retracting member 55A can press upward the uppermost sheet-like article 200T sent out from the holding unit 2. The advancing / retracting member 55A is provided below the conveying path R of the uppermost sheet-like article 200T sent out from the holding unit 2. The advancing / retracting member 55A in this embodiment is provided at a position overlapping the upper roller 32 and the lower roller 33 in the conveying direction D. The advancing / retracting member 55A is disposed between adjacent pairs of upper rollers 32 and lower rollers 33 in the width direction Dw.

[0036] The advancing / retreating member 55A is movable in the vertical direction Dv by a support member (not shown). The tip (upper end) 55s of the advancing / retreating member 55A in this embodiment is formed into a curved surface that is convex upward when viewed from the width direction Dw. Furthermore, the tip (upper end) 55s of the advancing / retreating member 55A in this embodiment is restricted to a curved surface that is convex upward when viewed from the conveying direction D. By forming the tip 55s of the advancing / retreating member 55A into a curved surface in this way, the frictional force generated between the advancing / retreating member 55A and the uppermost sheet-like object 200T is reduced. This configuration effectively exerts the first frictional force F1 and the second frictional force F2 generated between the upper roller 32 and the uppermost sheet-like object 200T, and between the lower roller 33 and the uppermost sheet-like object 200T.

[0037] The advancing / retreating member 55A is driven to advance and retreat by a predetermined stroke in the vertical direction Dv by a drive mechanism 56. In this embodiment, the drive mechanism 56 has, for example, an eccentric cam 57 and a motor 58 that rotates the eccentric cam 57. The eccentric cam 57 is driven to rotate about a horizontal axis by the motor 58, thereby driving the advancing / retreating member 55A to advance and retreat by the predetermined stroke in the vertical direction Dv.

[0038] The advancing / retreating member 55A, which is driven to advance and retreat in the vertical direction Dv by the drive mechanism 56, has a tip 55s positioned a predetermined distance above the lower end of the upper roller 32 in the vertical direction Dv at the upper end position of a predetermined stroke. The advancing / retreating member 55A has a tip 55s positioned a predetermined distance below the upper end of the lower roller 33 at the lower end position of a predetermined stroke. The driving mechanism 56 may be, for example, a cylinder actuator, etc., as long as it can drive the advancing and retreating member 55A to advance and retreat in the vertical direction Dv.

[0039] (Configuration of control unit) The control unit 6 controls the advancing and retreating member 55A based on the state of the uppermost sheet-like article 200T sent out from the holder 2, which is detected by the detection unit 50. As shown in FIG. 2, the control unit 6 includes a central processing unit (hereinafter referred to as a “CPU”) 310 and a memory 320 .

[0040] The CPU 310 functionally includes an acquisition unit 311 and an advance / retreat control unit 312 . That is, the CPU 310 operates based on a predetermined program to function as an acquisition unit 311 and an advance / retreat control unit 312 . The memory 320 stores various data acquired by the control unit 6.

[0041] The acquisition unit 311 acquires the state of the uppermost sheet-like item 200T detected by the detection unit 50. When the acquisition unit 311 acquires a signal indicating that a multiple feed state, a jam state, or the occurrence of a scratch has been detected from at least one of the multiple feed detection sensor 51, the jam detection sensor 52, and the scratch detection sensor 53, the acquisition unit 311 notifies the advance / retreat control unit 312 that the signal has been sent. When the multiple feed detection sensor 51 acquires a signal indicating that multiple feeding has occurred in the uppermost sheet-like item 200T, the acquisition unit 311 notifies the advance / retract control unit 312 that multiple feeding has occurred. When the jam detection sensor 52 acquires a signal indicating that a jam has occurred in the uppermost sheet-like item 200T, the acquisition unit 311 notifies the advance / retract control unit 312 that a jam has occurred. When the scratch detection sensor 53 acquires a signal indicating that a scratch has occurred in the leading end 200s of the uppermost sheet-like item 200T, the acquisition unit 311 notifies the advance / retract control unit 312 that a scratch has occurred.

[0042] The advance / retract control unit 312 moves the advance / retract member 55A up and down to switch between the following first state A1 and second state A2 based on the state of the uppermost sheet-like item 200T. When at least one of a multiple feed state, a jam state, and a scratch occurs in the uppermost sheet-like item 200T based on a notification from the acquisition unit 311, the advance / retract control unit 312 moves the advance / retract member 55A up and down to switch to the first state A1 or the second state A2. Note that in this embodiment, the advance / retract control unit 312 moves the advance / retract member 55A up and down to switch to the first state A1 or the second state A2 when the occurrence rate of each of the multiple feed state, the jam state, and the scratch in the uppermost sheet-like item 200T exceeds a preset rate. In addition, the forward / backward control unit 312 may be configured to move the forward / backward member 55A up and down and switch to the first state A1 or the second state A2 when a multiple feed state, a jam state, or a scratch occurs in the topmost sheet-like item 200T more than a predetermined number of times (including once).

[0043] 4 and 5, in the first state A1, the advancing / retracting member 55A is raised to a predetermined stroke upper end position. In the first state A1, the advancing / retracting member 55A is raised to the upper end position, thereby positioning the leading end 55s a predetermined distance above the lower end of the upper roller 32 in the vertical direction Dv. As a result, the uppermost sheet-like object 200T sent out from the holder 2 is pushed upward by the advancing / retracting member 55A, and the leading end 200s at the front Df in the conveyance direction D of the uppermost sheet-like object 200T contacts the upper roller 32.

[0044] As shown in Fig. 6, in the second state A2, the advancing / retreating member 55A is lowered to a predetermined stroke end position. In the second state A2, the advancing / retreating member 55A is lowered to the end position, so that the leading end 55s is positioned a predetermined distance below the upper end of the lower roller 33 in the vertical direction Dv. As a result, the leading end 200s of the uppermost sheet-like object 200T sent out from the holding unit 2 does not come into contact with the advancing / retreating member 55A, and tends to hang down due to its own weight. As a result, the leading end 200s of the uppermost sheet-like object 200T at the front Df in the conveying direction D tends to come into contact with the lower roller 33.

[0045] In the advance / retract control unit 312, when the acquisition unit 311 does not receive a detection signal from at least one of the multiple feed detection sensor 51, the jam detection sensor 52, and the scratch detection sensor 53, the advance / retract member 55A is positioned at a predetermined reference position as shown in FIGS. 2 and 3. In other words, when the uppermost sheet-like article 200T fed from the holder 2 is not in a multiple feed state, a jam state, or scratched, the advance / retract member 55A is positioned at the predetermined reference position. Here, the reference position of the advance / retract member 55A is set, for example, so that the tip end 55s of the advance / retract member 55A is slightly higher than the upper end of the lower roller 33. The reference position of the advance / retract member 55A may also be set, for example, so that the tip end 55s of the advance / retract member 55A is at the same height as the upper end of the lower roller 33. The reference position of the advancing / retreating member 55A is not limited to this, and for example, the tip 55s of the advancing / retreating member 55A may be set to be located a predetermined distance below the upper end of the lower roller 33.

[0046] When the advancing / retreating control unit 312 detects a multiple feed state using the multiple feed detection sensor 51, it lowers the advancing / retreating member 55A by a predetermined distance, as shown in Figure 6, and switches to a second state A2 in which the front end 200s Df of the top sheet-like item 200T in the conveying direction D comes into contact with the lower roller 33 before the upper roller 32. Here, the first friction force F1 is the friction force between the upper roller 32 and the uppermost sheet-like article 200T. The second friction force F2 is the friction force between the lower roller 33 and another sheet-like article 200 overlapping below the uppermost sheet-like article 200T. The inter-sheet friction force Fs is the friction force between the uppermost sheet-like article 200T and another sheet-like article 200 overlapping below it. In the multiple feeding state, the first friction force F1, the second friction force F2, and the inter-sheet friction force Fs satisfy the following relationship (1). F1>F2 and Fs>F2 (1)

[0047] With such a multiple feeding state occurring, the advancing / retreating member 55A is lowered by a predetermined distance, and the leading end 200s of the uppermost sheet-like item 200T at the front Df in the conveying direction D is brought into contact with the lower roller 33 before the upper roller 32. Then, the second friction force F2 between the lower roller 33 and the other sheet-like items 200 overlapping below the uppermost sheet-like item 200T increases, and the relationship (1) above changes to the following relationship (2). F1>F2 and F2>Fs (2) The second friction force F2 applied by the lower roller 33 to the other sheet-like articles 200 stacked below the uppermost sheet-like article 200T becomes large, thereby preventing the other sheet-like articles 200 from being sent forward Df in the conveying direction D. This prevents multiple feeding from occurring.

[0048] When the advancing / retreating control unit 312 detects a jammed state by the jam detection sensor 52, it raises the advancing / retreating member 55A by a predetermined distance, as shown in Figures 4 and 5, and brings the front end 200s of the topmost sheet-like item 200T at the front Df in the conveying direction D into contact with the upper roller 32 before the lower roller 33, thereby establishing a first state A1. Jamming of the uppermost sheet-like article 200T often occurs when the leading edge 200s of the uppermost sheet-like article 200T at the front Df in the conveying direction D sags and hits the lower roller 33. When a jam is detected, the leading edge 200s of the uppermost sheet-like article 200T is brought into contact with the upper roller 32 before the lower roller 33, thereby preventing jamming.

[0049] When the scratch detection sensor 53 detects the occurrence of a scratch in the forward / backward movement control unit 312, the forward / backward movement member 55A is raised by a predetermined dimension, and the front end portion 200s of the topmost sheet-like item 200T at the front Df in the conveying direction D is brought into contact with the upper roller 32 before the lower roller 33, thereby entering a first state A1. Damage to the leading edge 200s of the uppermost sheet-like article 200T often occurs when the leading edge 200s at the front Df of the uppermost sheet-like article 200T in the conveying direction D sags and hits the lower roller 33. When the occurrence of a scratch is detected, the leading edge 200s of the uppermost sheet-like article 200T is brought into contact with the upper roller 32 before the lower roller 33, thereby preventing the occurrence of a scratch.

[0050] (Method for controlling a transport device) As shown in Figure 7, the control method for the conveying device includes step S11 of acquiring the state of the topmost sheet-like item, step S12 of determining whether there is an abnormality in the state of the sheet-like item, and step S13 of switching to either a first state or a second state.

[0051] In step S11 for acquiring the state of the top sheet-like item, the acquisition unit 311 of the control unit 6 acquires the state of the top sheet-like item 200T detected by the detection unit 50 at predetermined time intervals. In step S11, if a multiple feed occurs in the top sheet-like item 200T, a signal indicating that a multiple feed has occurred is acquired from the multiple feed detection sensor 51. In step S11, if a jam occurs in the top sheet-like item 200T, a signal indicating that a jam has occurred is acquired from the jam detection sensor 52. In step S11, if a scratch has occurred in the top sheet-like item 200T, a signal indicating that a scratch has occurred is acquired from the scratch detection sensor 53.

[0052] In step S12, which determines whether an abnormality has occurred in the state of the sheet-like article, the advance / retract control unit 312 determines in step S11 whether it has received a signal indicating that a multiple feed state, a jam state, or the occurrence of a scratch has been detected from at least one of the multiple feed detection sensor 51, the jam detection sensor 52, and the scratch detection sensor 53. In step S12, if it has received a signal indicating that a multiple feed state, a jam state, or the occurrence of a scratch has been detected from at least one of the multiple feed detection sensor 51, the jam detection sensor 52, and the scratch detection sensor 53, the advance / retract control unit 312 calculates the occurrence rates of the multiple feed state, the jam state, and the scratch. In step S12, if the calculated occurrence rates of multiple feed, jam, and scratches are less than the preset standards (step S12: No), the process is terminated, and after a predetermined time has elapsed, the process is repeated from step S11. In step S12, if the calculated occurrence rates of the multiple feeding state, the jam state, and the damage are equal to or higher than the preset standards (step S12: Yes), the process proceeds to step S13.

[0053] In step S13 of switching between the first state and the second state, if the multiple feed detection sensor 51 detects a multiple feed state, the forward / backward control unit 312 lowers the forward / backward member 55A by a predetermined distance, as shown in Figure 6, and switches to the second state A2 in which the front end 200s Df of the top sheet-like item 200T in the conveying direction D contacts the lower roller 33 before the upper roller 32. Furthermore, when a jam state is detected by the jam detection sensor 52, the advancing / retreating control unit 312 raises the advancing / retreating member 55A by a predetermined dimension, as shown in Figures 4 and 5, and brings the front end 200s of the topmost sheet-like item 200T at the front Df in the conveying direction D into contact with the upper roller 32 before the lower roller 33, thereby establishing a first state A1. When the scratch detection sensor 53 detects the occurrence of a scratch, the advancing / retreating control unit 312 raises the advancing / retreating member 55A by a predetermined dimension, and brings the front end 200s of the topmost sheet-like item 200T in the conveying direction D forward Df into contact with the upper roller 32 before the lower roller 33, thereby establishing a first state A1.

[0054] The supply system 1A of this embodiment can switch between a first state A1 in which the leading edge Df of the top sheet-like item 200T in the conveying direction D is brought into contact with the upper roller 32 located above the conveying path R of the top sheet-like item 200T based on the state of the top sheet-like item 200T, and a second state A2 in which the advancing / retracting member 55A is lowered based on the state of the top sheet-like item 200T to bring the leading edge of the top sheet-like item 200T into contact with the lower roller 33 located below the conveying path R. This makes it possible to adjust the frictional force relationship and contact state between the top sheet-like item 200T and each of the upper roller 32 and lower roller 33 based on the state of the top sheet-like item 200T. This makes it easier to more effectively prevent incorrect supply of the sheet-like item 200T being fed.

[0055] (Modification of the first embodiment) As shown in FIG. 8, in a supply system 1B of the present disclosure, a monitoring mechanism 5B of a transport device 3B includes a detection unit 50, a forward / backward moving member 55B, and a control unit 6.

[0056] The advancing / retracting member 55B in this embodiment is provided below the conveying path R of the uppermost sheet-like article 200T sent out from the holding unit 2. The advancing / retracting member 55B in this embodiment is provided behind the upper roller 32 and the lower roller 33 in the conveying direction D, Dr. The advancing / retracting member 55B is provided ahead of the feed roller 31 in the conveying direction D, Df.

[0057] In the supply system 1B equipped with the monitoring mechanism 5B having such a configuration, it is also possible to more effectively prevent supply errors in the sheet-like articles 200T that are fed out.

[0058] Second Embodiment Hereinafter, an embodiment according to the present disclosure will be described with reference to the drawings. As shown in FIG. 9, the monitoring mechanism 5C includes a detection unit 50, a reciprocating member 55C, and a control unit 6.

[0059] The detection unit 50 detects the state of the uppermost sheet-like article 200T among the sheet-like articles 200 sent out from the holding unit 2 in which the sheet-like articles 200 are piled up.

[0060] The advancing / retreating member 55C is provided below the conveying path R. The advancing / retreating member 55C is capable of advancing and retracting in the vertical direction Dv. The advancing / retreating member 55C is capable of pressing the uppermost sheet-like article 200T that has been fed out upward.

[0061] The control unit 6 can switch between a first state A1 and a second state A2 based on the state of the uppermost sheet-like item 200T. In the first state A1, the advancing / retracting member 55C is raised to bring the leading end 200s of the uppermost sheet-like item 200T, at the front Df in the conveying direction D, into contact with the upper roller 32 located above the conveying path R of the uppermost sheet-like item 200T. In the second state A2, the advancing / retracting member 55C is lowered to bring the leading end 200s of the uppermost sheet-like item 200T into contact with the lower roller 33 located below the conveying path R.

[0062] The monitoring mechanism 5C of this embodiment can be switched between a first state A1 and a second state A2 based on the state of the uppermost sheet-like article 200T. Therefore, the frictional force relationship and contact state between the uppermost sheet-like article 200T and each of the upper roller 32 and the lower roller 33 can be adjusted based on the state of the uppermost sheet-like article 200T. This makes it easier to more effectively prevent errors in feeding the sheet-like article 200T.

[0063] Third Embodiment Hereinafter, an embodiment according to the present disclosure will be described with reference to the drawings. As shown in FIG. 10, the transport device 3D includes a feed roller 31, an upper roller 32, a lower roller 33, a detection unit 50, a forward / backward moving member 55D, and a control unit 6.

[0064] The feed roller 31 feeds out the uppermost sheet-like article 200T of the plurality of sheet-like articles 200 from the holder 2 in which the plurality of sheet-like articles 200 are stacked. The upper roller 32 is positioned above the conveying path R of the fed-out uppermost sheet-like article 200T. The upper roller 32 applies a first friction force F1 to the upper surface side of the uppermost sheet-like article 200T toward the front Df in the conveying direction D of the uppermost sheet-like article 200T. The lower roller 33 is located below the conveying path R of the fed-out uppermost sheet-like article 200T. The lower roller 33 applies a second friction force F2 toward the rearward direction Dr in the conveying direction D to the lower surface side of the uppermost sheet-like article 200T.

[0065] The detection unit 50 detects the state of the uppermost sheet-like article 200T among the sheet-like articles 200 sent out from the holding unit 2 in which the sheet-like articles 200 are piled up.

[0066] The advancing / retreating member 55D is provided below the conveying path R. The advancing / retreating member 55D is movable in the vertical direction Dv and can press the uppermost sheet-like article 200T sent out upward.

[0067] The control unit 6 can switch between a first state A1 and a second state A2 based on the state of the uppermost sheet-like item 200T. In the first state A1, the advancing / retracting member 55D is raised to bring the leading end 200s of the uppermost sheet-like item 200T, at the front Df in the conveying direction D, into contact with the upper roller 32 located above the conveying path R of the uppermost sheet-like item 200T. In the second state A2, the advancing / retracting member 55D is lowered to bring the leading end 200s of the uppermost sheet-like item 200T into contact with the lower roller 33 located below the conveying path R.

[0068] The conveying device 3D of this embodiment can be switched between a first state A1 and a second state A2 based on the state of the uppermost sheet-like item 200T. Therefore, the frictional force relationship and contact state between the uppermost sheet-like item 200T and each of the upper roller 32 and the lower roller 33 can be adjusted based on the state of the uppermost sheet-like item 200T. This makes it easier to more effectively prevent errors in feeding the sheet-like item 200T.

[0069] <Fourth embodiment> Hereinafter, an embodiment according to the present disclosure will be described with reference to the drawings. As shown in FIG. 11, the supply system 1E includes a holder 2, a feed roller 31, an upper roller 32, a lower roller 33, a detector 50, a reciprocating member 55E, and a controller 6. In the holder 2, a plurality of sheet-like articles 200 are stacked.

[0070] The feed roller 31 feeds out the uppermost sheet-like article 200T of the plurality of sheet-like articles 200 from the holder 2 in which the plurality of sheet-like articles 200 are stacked. The upper roller 32 is positioned above the conveying path R of the fed-out uppermost sheet-like article 200T. The upper roller 32 applies a first friction force F1 to the upper surface side of the uppermost sheet-like article 200T toward the front Df in the conveying direction D of the uppermost sheet-like article 200T. The lower roller 33 is located below the conveying path R of the fed-out uppermost sheet-like article 200T. The lower roller 33 applies a second friction force F2 toward the rearward direction Dr in the conveying direction D to the lower surface side of the uppermost sheet-like article 200T.

[0071] The detection unit 50 detects the state of the uppermost sheet-like article 200T among the sheet-like articles 200 sent out from the holding unit 2 in which the sheet-like articles 200 are piled up.

[0072] The advancing / retreating member 55E is provided below the conveying path R. The advancing / retreating member 55E is capable of advancing and retracting in the vertical direction Dv. The advancing / retreating member 55E is capable of pressing the uppermost sheet-like article 200T that has been fed out upward.

[0073] The control unit 6 can switch between a first state A1 and a second state A2 based on the state of the uppermost sheet-like item 200T. In the first state A1, the advancing / retracting member 55E is raised to bring the leading end 200s of the uppermost sheet-like item 200T, at the front Df in the conveying direction D, into contact with the upper roller 32 located above the conveying path R of the uppermost sheet-like item 200T. In the second state A2, the advancing / retracting member 55E is lowered to bring the leading end 200s of the uppermost sheet-like item 200T into contact with the lower roller 33 located below the conveying path R.

[0074] The supply system 1E of this embodiment can be switched between a first state A1 and a second state A2 based on the state of the uppermost sheet-like article 200T. Therefore, the frictional force relationship and contact state between the uppermost sheet-like article 200T and each of the upper roller 32 and the lower roller 33 can be adjusted based on the state of the uppermost sheet-like article 200T. This makes it easier to more effectively prevent errors in supplying the sheet-like article 200T.

[0075] Fifth Embodiment Hereinafter, an embodiment according to the present disclosure will be described with reference to the drawings. As shown in FIG. 12, the control device 6F controls the transport device 3F. The transport device 3F includes a feed roller 31, an upper roller 32, a lower roller 33, a detector 50, a moving member 55F, and a control device 6F.

[0076] The feed roller 31 feeds out the uppermost sheet-like article 200T of the plurality of sheet-like articles 200 from the holder 2 in which the plurality of sheet-like articles 200 are stacked. The upper roller 32 is positioned above the conveying path R of the fed-out uppermost sheet-like article 200T. The upper roller 32 applies a first friction force F1 to the upper surface side of the uppermost sheet-like article 200T toward the front Df in the conveying direction D of the uppermost sheet-like article 200T. The lower roller 33 is located below the conveying path R of the fed-out uppermost sheet-like article 200T. The lower roller 33 applies a second friction force F2 toward the rearward direction Dr in the conveying direction D to the lower surface side of the uppermost sheet-like article 200T.

[0077] The detection unit 50 detects the state of the uppermost sheet-like article 200T among the sheet-like articles 200 sent out from the holding unit 2 in which the sheet-like articles 200 are piled up.

[0078] The advancing / retreating member 55F is provided below the conveying path R. The advancing / retreating member 55F is movable in the vertical direction Dv. The advancing / retreating member 55F is capable of pressing the uppermost sheet-like article 200T that has been fed out upward.

[0079] The control device 6F includes an acquisition unit 311F and an advance / retreat control unit 312F. The acquiring unit 311F acquires the state of the uppermost sheet-like item 200T detected by the detecting unit 50.

[0080] The advancing / retreating control unit 312F can switch between a first state A1 and a second state A2 based on the state of the uppermost sheet-like article 200T. In the first state A1, the advancing / retreating member 55F is raised to bring the leading end 200s of the uppermost sheet-like article 200T, at the front Df in the conveying direction D, into contact with the upper roller 32. In the second state A2, the advancing / retreating member 55F is lowered to bring the leading end 200s of the uppermost sheet-like article 200T into contact with the lower roller 33.

[0081] The control device 6F of this embodiment can switch between the first state A1 and the second state A2 based on the state of the uppermost sheet-like item 200T. Therefore, the frictional force relationship and contact state between the uppermost sheet-like item 200T and each of the upper roller 32 and the lower roller 33 can be adjusted based on the state of the uppermost sheet-like item 200T. This makes it easier to more effectively prevent errors in feeding the sheet-like item 200T.

[0082] Sixth Embodiment Hereinafter, an embodiment according to the present disclosure will be described with reference to the drawings. As shown in FIG. 13, the method for controlling the conveying device includes step S71 of acquiring the state of the uppermost sheet-like object, and step S72 of switching the state to either a first state or a second state.

[0083] The conveying device includes a feed roller, an upper roller, a lower roller, a detection unit, and a reciprocating member.

[0084] The feed roller feeds the uppermost sheet-like article out of the plurality of sheet-like articles stacked in a holder. The upper roller is positioned above the conveyance path of the uppermost sheet-like object fed out, and applies a first frictional force to the upper surface of the uppermost sheet-like object in the forward direction in the conveyance direction of the uppermost sheet-like object. The lower roller is positioned below the conveyance path of the uppermost sheet-like object fed out, and applies a second frictional force to the lower surface of the uppermost sheet-like object toward the rear in the conveyance direction.

[0085] The detection unit detects the state of the uppermost sheet-like article among the plurality of sheet-like articles sent out from the holding unit in which the plurality of sheet-like articles are stacked.

[0086] The advancing / retracting member is provided below the conveying path and is capable of advancing and retracting in the vertical direction. The advancing / retracting member is capable of pressing the topmost sheet-like object fed out upward.

[0087] In step S71 of acquiring the state of the topmost sheet-like object, the state of the topmost sheet-like object detected by the detection unit is acquired.

[0088] In step S72 of switching to either the first state or the second state, the state is switched to either the first state or the second state based on the state of the uppermost sheet-like item. In the first state, the advancing / retracting member is raised to bring the leading edge of the top sheet-like object in the conveying direction into contact with the upper roller, and in the second state, the advancing / retracting member is lowered to bring the leading edge of the top sheet-like object into contact with the lower roller.

[0089] The control method of the control device of this embodiment allows switching between the first state and the second state based on the state of the top sheet-like object. Therefore, the frictional force relationship and contact state between the top sheet-like object and each of the upper and lower rollers can be adjusted based on the state of the top sheet-like object. Therefore, it is easier to more effectively prevent errors in feeding sheet-like objects.

[0090] The programs of the control unit 6 and the control device 6F may be programs for realizing some of the above-mentioned functions, or may be so-called differential files (differential programs) that can realize the above-mentioned functions in combination with programs already recorded in the computer system.

[0091] Although the present disclosure has been described above with reference to the embodiments, the present disclosure is not limited to the above-described embodiments. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present disclosure within the scope of the present disclosure. Furthermore, each embodiment can be combined with other embodiments as appropriate.

[0092] Some or all of the above-described embodiments can be described as, but are not limited to, the following supplementary notes.

[0093] (Appendix 1) a detection unit that detects the state of the uppermost sheet-like article among the plurality of sheet-like articles fed from a holding unit in which the plurality of sheet-like articles are stacked; a reciprocating member provided below a conveyance path of the uppermost sheet-like object that has been fed out, capable of moving up and down, and capable of pressing the uppermost sheet-like object that has been fed out upward; a control unit that, based on the state of the uppermost sheet-like item, switches between a first state in which the advancing / retracting member is raised to bring the front end portion of the uppermost sheet-like item in the conveying direction into contact with an upper roller located above the conveying path, and a second state in which the advancing / retracting member is lowered to bring the front end portion of the uppermost sheet-like item into contact with a lower roller located below the conveying path; A monitoring mechanism equipped with:

[0094] (Appendix 2) The detection unit a first sensor capable of detecting the occurrence of a scratch on the uppermost sheet-like item; the control unit sets the retractable member to the first state when the first sensor detects that a scratch has occurred in the uppermost sheet-like object. The monitoring mechanism described in Appendix 1.

[0095] (Appendix 3) The detection unit a second sensor capable of detecting a multiple feeding state in which the plurality of sheet-like articles are fed by a feed roller that feeds the uppermost sheet-like article; a third sensor capable of detecting a jammed state of the uppermost sheet-like item, The control unit When the second sensor detects the multiple feed state, the advancing and retracting member is set to the second state, When the third sensor detects the jammed state, the advancing and retracting member is set to the first state. A monitoring mechanism as described in Appendix 1 or 2.

[0096] (Appendix 4) The upper end of the reciprocating member is formed into a curved surface that is convex upward. 1. A monitoring mechanism as described in any one of appendices 1 to 3.

[0097] (Appendix 5) a feed roller for feeding the uppermost sheet-like article from a holding section in which the plurality of sheet-like articles are stacked; an upper roller positioned above a conveyance path of the fed-out uppermost sheet-like object, and applying a first frictional force to an upper surface of the uppermost sheet-like object toward the front in the conveyance direction of the uppermost sheet-like object; a lower roller positioned below the conveying path and applying a second frictional force to a lower surface of the uppermost sheet-like item toward the rear in the conveying direction; a detection unit that detects the state of the topmost sheet-like object that has been fed out; a reciprocating member that is provided below the conveying path and is capable of moving up and down, and that can press the topmost sheet-like object upward; a control unit that, based on the state of the uppermost sheet-like object, switches between a first state in which the advancing / retracting member is raised to bring the front end of the uppermost sheet-like object in the conveying direction into contact with the upper roller, and a second state in which the advancing / retracting member is lowered to bring the front end of the uppermost sheet-like object into contact with the lower roller; A conveying device comprising:

[0098] (Appendix 6) a plurality of pairs of the upper rollers and the lower rollers are provided at intervals in a width direction intersecting the conveying direction in a horizontal plane, The advancing and retreating member is disposed between a plurality of pairs of the upper rollers and the lower rollers adjacent to each other in the width direction. 6. The conveying device of claim 5.

[0099] (Appendix 7) the advancing / retreating member is provided at a position overlapping with the upper roller and the lower roller in the conveying direction; 7. The conveying device according to claim 5 or 6.

[0100] (Appendix 8) the advancing / retreating member is provided rearward of the upper roller and the lower roller in the conveying direction; 7. The conveying device according to claim 5 or 6.

[0101] (Appendix 9) The detection unit a first sensor capable of detecting the occurrence of a scratch on the uppermost sheet-like item; the control unit sets the retractable member to the first state when the first sensor detects that a scratch has occurred in the uppermost sheet-like object. 9. A conveying device according to any one of appendices 5 to 8.

[0102] (Appendix 10) The detection unit a second sensor capable of detecting a multiple feeding state in which the plurality of sheet-like articles are fed by the feed roller, and a third sensor capable of detecting a jam state of the topmost sheet-like article, The control unit When the second sensor detects the multiple feed state, the advancing and retracting member is set to the second state, When the third sensor detects the jammed state, the advancing and retracting member is set to the first state. 10. A conveying device according to any one of appendices 5 to 9.

[0103] (Appendix 11) The upper end of the reciprocating member is formed into a curved surface that is convex upward. 11. A conveying device according to any one of claims 5 to 10.

[0104] (Appendix 12) a holder in which a plurality of sheet-like articles are stacked; a feed roller that feeds the uppermost sheet-like article of the plurality of sheet-like articles from the holding section; an upper roller positioned above a conveyance path of the fed-out uppermost sheet-like object, and applying a first frictional force to an upper surface of the uppermost sheet-like object toward the front in the conveyance direction of the uppermost sheet-like object; a lower roller positioned below the conveying path and applying a second frictional force to a lower surface of the uppermost sheet-like item toward the rear in the conveying direction; a detection unit that detects the state of the topmost sheet-like object that has been fed out; a reciprocating member that is provided below the conveying path and is capable of moving up and down, and that can press the topmost sheet-like object upward; a control unit that, based on the state of the uppermost sheet-like object, switches between a first state in which the advancing / retracting member is raised to bring the front end of the uppermost sheet-like object in the conveying direction into contact with the upper roller, and a second state in which the advancing / retracting member is lowered to bring the front end of the uppermost sheet-like object into contact with the lower roller; A supply system comprising:

[0105] (Appendix 13) a plurality of pairs of the upper rollers and the lower rollers are provided at intervals in a width direction intersecting the conveying direction in a horizontal plane, The advancing and retreating member is disposed between a plurality of pairs of the upper rollers and the lower rollers adjacent to each other in the width direction. 13. The delivery system of claim 12.

[0106] (Appendix 14) the advancing / retreating member is provided at a position overlapping with the upper roller and the lower roller in the conveying direction; 14. The delivery system of claim 12 or 13.

[0107] (Appendix 15) the advancing / retreating member is provided rearward of the upper roller and the lower roller in the conveying direction; 14. The delivery system of claim 12 or 13.

[0108] (Appendix 16) The detection unit a first sensor capable of detecting the occurrence of a scratch on the uppermost sheet-like item; the control unit sets the retractable member to the first state when the first sensor detects that a scratch has occurred in the uppermost sheet-like object. 16. A delivery system according to any one of clauses 12 to 15.

[0109] (Appendix 17) The detection unit a second sensor capable of detecting a multiple feeding state in which the plurality of sheet-like articles are fed by the feed roller; a third sensor capable of detecting a jammed state of the uppermost sheet-like item, The control unit When the second sensor detects the multiple feed state, the advancing and retracting member is set to the second state, When the third sensor detects the jammed state, the advancing and retracting member is set to the first state. 17. A delivery system according to any one of clauses 12 to 16.

[0110] (Appendix 18) The upper end of the reciprocating member is formed into a curved surface that is convex upward. 18. A delivery system according to any one of clauses 12 to 17.

[0111] (Appendix 19) a control device for controlling a conveying device comprising: a feed roller for feeding an uppermost sheet-like item out of a plurality of sheet-like items from a holding section in which the plurality of sheet-like items are stacked; an upper roller located above a conveying path of the fed uppermost sheet-like item and applying a first frictional force to an upper surface of the fed uppermost sheet-like item toward the front in the conveying direction of the uppermost sheet-like item; a lower roller located below the conveying path and applying a second frictional force to a lower surface of the uppermost sheet-like item toward the rear in the conveying direction; a detection unit for detecting the state of the fed uppermost sheet-like item; and an advancing / retracting member located below the conveying path, capable of advancing and retracting in the vertical direction, and capable of pressing the fed uppermost sheet-like item upward, an acquisition unit that acquires the state of the uppermost sheet-like item detected by the detection unit; a forward / backward control unit that, based on the state of the uppermost sheet-like object, switches between a first state in which the forward / backward member is raised to bring the front end of the uppermost sheet-like object in the conveying direction into contact with the upper roller, and a second state in which the forward / backward member is lowered to bring the front end of the uppermost sheet-like object into contact with the lower roller; A control device including:

[0112] (Appendix 20) The advance / retreat control unit is When a scratch is detected in the uppermost sheet-like object, the retractable member is set to the first state. 20. The control device of claim 19.

[0113] (Appendix 21) The advance / retreat control unit is When the multiple feed state is detected, the advancing and retreating member is set to the second state, When the jam state is detected, the advancing / retreating member is set to the first state. 21. The control device according to claim 19 or 20.

[0114] (Appendix 22) A method for controlling a conveying device comprising: a feed roller that feeds out an uppermost sheet-like item from a holding section in which a plurality of sheet-like items are stacked; an upper roller that is located above a conveying path of the fed-out uppermost sheet-like item and applies a first frictional force to an upper surface of the topmost sheet-like item toward the front in the conveying direction of the topmost sheet-like item; a lower roller that is located below the conveying path and applies a second frictional force to a lower surface of the topmost sheet-like item toward the rear in the conveying direction; a detection section that detects a state of the fed-out uppermost sheet-like item; and an advancing / retracting member that is provided below the conveying path and is movable up and down and is capable of pressing the fed-out uppermost sheet-like item upward, acquiring a state of the uppermost sheet-like item detected by the detection unit; a step of switching between a first state in which the advancing / retracting member is raised and the leading edge of the uppermost sheet-like object in the conveying direction is brought into contact with the upper roller, and a second state in which the advancing / retracting member is lowered and the leading edge of the uppermost sheet-like object is brought into contact with the lower roller, based on the state of the uppermost sheet-like object; A method for controlling a transport device, comprising:

[0115] (Appendix 23) In the step of switching to either the first state or the second state, the advancing / retracting member is switched to the first state when occurrence of a scratch on the uppermost sheet-like object is detected. 23. A method for controlling a conveying device according to claim 22.

[0116] (Appendix 24) In the step of switching to either the first state or the second state, when the second sensor detects the multiple feed state, the advancing / retreating member is set to the second state, and when the third sensor detects the jam state, the advancing / retreating member is set to the first state. 24. A method for controlling a conveying device according to claim 22 or 23.

[0117] (Appendix 25) a control device for a conveying device comprising: a feed roller for feeding an uppermost sheet-like item out of a plurality of sheet-like items from a holding section in which the plurality of sheet-like items are stacked; an upper roller located above a conveying path of the fed uppermost sheet-like item and applying a first frictional force to an upper surface of the fed uppermost sheet-like item toward the front in the conveying direction of the uppermost sheet-like item; a lower roller located below the conveying path and applying a second frictional force to a lower surface of the uppermost sheet-like item toward the rear in the conveying direction; a detection unit for detecting a state of the fed uppermost sheet-like item; and an advancing / retracting member located below the conveying path, capable of advancing and retracting in the vertical direction, and capable of pressing the fed uppermost sheet-like item upward, acquiring a state of the uppermost sheet-like item detected by the detection unit; a step of switching between a first state in which the advancing / retracting member is raised and the leading edge of the uppermost sheet-like object in the conveying direction is brought into contact with the upper roller, and a second state in which the advancing / retracting member is lowered and the leading edge of the uppermost sheet-like object is brought into contact with the lower roller, based on the state of the uppermost sheet-like object; A program that executes a process including:

[0118] (Appendix 26) In the step of switching to either the first state or the second state, the advancing / retracting member is switched to the first state when occurrence of a scratch on the uppermost sheet-like object is detected. 2. The program described in Appendix 25.

[0119] (Appendix 27) In the step of switching to either the first state or the second state, when the second sensor detects the multiple feed state, the advancing / retreating member is set to the second state, and when the third sensor detects the jam state, the advancing / retreating member is set to the first state. 27. The program according to claim 25 or 26. [Explanation of symbols]

[0120] 1A, 1B, 1E supply system 2 Holding part 3A, 3B, 3D, 3F conveyance device 5A, 5B, 5C monitoring mechanism 6 Control Unit 6F Control device 31 Feed roller 32 Upper roller 33 Lower roller 50 Detection unit 55A~55F Moving parts 200 Sheet-like items 200T Top sheet-like item 200s tip 311, 311F Acquisition Department 312, 312F Advance / retreat control section A1 First state A2 Second state R Transport route

Claims

1. a detection unit that detects the state of the uppermost sheet-like article among the plurality of sheet-like articles fed from a holding unit in which the plurality of sheet-like articles are stacked; a reciprocating member provided below a conveyance path of the uppermost sheet-like object that has been fed out, capable of moving up and down, and capable of pressing the uppermost sheet-like object that has been fed out upward; and a control unit that, based on the state of the uppermost sheet-like item, switches between a first state in which the advancing / retracting member is raised to bring the front end portion of the uppermost sheet-like item in the conveying direction into contact with an upper roller located above the conveying path, and a second state in which the advancing / retracting member is lowered to bring the front end portion of the uppermost sheet-like item into contact with a lower roller located below the conveying path. Surveillance mechanism.

2. The detection unit a first sensor capable of detecting the occurrence of a scratch on the uppermost sheet-like item; the control unit sets the retractable member to the first state when the first sensor detects that a scratch has occurred in the uppermost sheet-like object. The monitoring mechanism of claim 1 .

3. The detection unit a second sensor capable of detecting a multiple feeding state in which the plurality of sheet-like articles are fed by a feed roller that feeds the uppermost sheet-like article; a third sensor capable of detecting a jammed state of the uppermost sheet-like item, The control unit When the second sensor detects the multiple feed state, the advancing and retracting member is set to the second state, When the third sensor detects the jammed state, the advancing and retracting member is set to the first state.

3. A monitoring mechanism according to claim 1 or 2.

4. The upper end of the reciprocating member is formed into a curved surface that is convex upward.

3. A monitoring mechanism according to claim 1 or 2.

5. a feed roller for feeding the uppermost sheet-like article among the plurality of sheet-like articles from a holding section in which the plurality of sheet-like articles are stacked; an upper roller positioned above a conveyance path of the fed-out uppermost sheet-like object, and applying a first frictional force to an upper surface of the uppermost sheet-like object toward the front in the conveyance direction of the uppermost sheet-like object; a lower roller positioned below the conveying path and applying a second frictional force to a lower surface of the uppermost sheet-like item toward the rear in the conveying direction; a detection unit that detects the state of the topmost sheet-like object that has been fed; a reciprocating member that is provided below the conveying path and is capable of moving up and down in a vertical direction and pressing the topmost sheet-like object upward; and a control unit that, based on the state of the uppermost sheet-like item, switches between a first state in which the advancing / retracting member is raised to bring the front end of the uppermost sheet-like item in the conveying direction into contact with the upper roller, and a second state in which the advancing / retracting member is lowered to bring the front end of the uppermost sheet-like item into contact with the lower roller. Conveying device.

6. a plurality of pairs of the upper rollers and the lower rollers are provided at intervals in a width direction intersecting the conveying direction in a horizontal plane, The advancing and retreating member is disposed between a plurality of pairs of the upper rollers and the lower rollers adjacent to each other in the width direction. The conveying device according to claim 5 .

7. a holder in which a plurality of sheet-like articles are stacked; a feed roller that feeds the uppermost sheet-like article of the plurality of sheet-like articles from the holding section; an upper roller positioned above a conveyance path of the fed-out uppermost sheet-like object, and applying a first frictional force to an upper surface of the uppermost sheet-like object toward the front in the conveyance direction of the uppermost sheet-like object; a lower roller positioned below the conveying path and applying a second frictional force to a lower surface of the uppermost sheet-like item toward the rear in the conveying direction; a detection unit that detects the state of the topmost sheet-like object that has been fed; a reciprocating member that is provided below the conveying path and is capable of moving up and down in a vertical direction and pressing the topmost sheet-like object upward; and a control unit that, based on the state of the uppermost sheet-like item, switches between a first state in which the advancing / retracting member is raised to bring the front end of the uppermost sheet-like item in the conveying direction into contact with the upper roller, and a second state in which the advancing / retracting member is lowered to bring the front end of the uppermost sheet-like item into contact with the lower roller. Supply system.

8. a control device for controlling a conveying device comprising: a feed roller for feeding an uppermost sheet-like item out of a plurality of sheet-like items from a holding section in which the plurality of sheet-like items are stacked; an upper roller located above a conveying path of the fed uppermost sheet-like item and applying a first frictional force to an upper surface of the fed uppermost sheet-like item toward the front in the conveying direction of the uppermost sheet-like item; a lower roller located below the conveying path and applying a second frictional force to a lower surface of the uppermost sheet-like item toward the rear in the conveying direction; a detection unit for detecting the state of the fed uppermost sheet-like item; and an advancing / retracting member located below the conveying path, capable of advancing and retracting in the vertical direction, and capable of pressing the fed uppermost sheet-like item upward, an acquisition unit that acquires the state of the uppermost sheet-like item detected by the detection unit; and a forward / backward control unit that, based on the state of the uppermost sheet-like item, switches between a first state in which the forward / backward member is raised to bring the front end of the uppermost sheet-like item in the conveying direction into contact with the upper roller, and a second state in which the forward / backward member is lowered to bring the front end of the uppermost sheet-like item into contact with the lower roller. Control device.

9. A method for controlling a conveying device comprising: a feed roller that feeds out an uppermost sheet-like item from a holding section in which a plurality of sheet-like items are stacked; an upper roller that is located above a conveying path of the fed-out uppermost sheet-like item and applies a first frictional force to an upper surface of the topmost sheet-like item toward the front in the conveying direction of the topmost sheet-like item; a lower roller that is located below the conveying path and applies a second frictional force to a lower surface of the topmost sheet-like item toward the rear in the conveying direction; a detection section that detects a state of the fed-out uppermost sheet-like item; and an advancing / retracting member that is provided below the conveying path and is movable up and down and is capable of pressing the fed-out uppermost sheet-like item upward, acquiring a state of the uppermost sheet-like item detected by the detection unit; and switching the state of the uppermost sheet-like article between a first state in which the advancing / retracting member is raised to bring the leading end of the uppermost sheet-like article in the conveying direction into contact with the upper roller, and a second state in which the advancing / retracting member is lowered to bring the leading end of the uppermost sheet-like article into contact with the lower roller, based on the state of the uppermost sheet-like article. A method for controlling a transport device.

10. a control device for a conveying device comprising: a feed roller for feeding an uppermost sheet-like item out of a plurality of sheet-like items from a holding section in which the plurality of sheet-like items are stacked; an upper roller located above a conveying path of the fed uppermost sheet-like item and applying a first frictional force to an upper surface of the fed uppermost sheet-like item toward the front in the conveying direction of the uppermost sheet-like item; a lower roller located below the conveying path and applying a second frictional force to a lower surface of the uppermost sheet-like item toward the rear in the conveying direction; a detection unit for detecting a state of the fed uppermost sheet-like item; and an advancing / retracting member located below the conveying path, capable of advancing and retracting in the vertical direction, and capable of pressing the fed uppermost sheet-like item upward, acquiring a state of the uppermost sheet-like item detected by the detection unit; and switching the advancing / retracting member to either a first state in which the advancing / retracting member is raised and the leading edge of the uppermost sheet-like object in the conveying direction is brought into contact with the upper roller, or a second state in which the advancing / retracting member is lowered and the leading edge of the uppermost sheet-like object is brought into contact with the lower roller, based on the state of the uppermost sheet-like object. program.

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