JP4427309B2 - Strip stripping device - Google Patents

Description

  The present invention relates to a band stripping device that is applied to, for example, a banknote inspection machine and strips a binding band that binds paper bundles.

  The banknote checker stacks a predetermined number of paper sheets such as banknotes with a sealing band (hereinafter referred to as a paper sheet t) in a stacked manner, and uses this as a band material. A bundle of zigzag bands (hereinafter referred to as a paper sheet bundle T) is supplied, and the band is removed to disassemble the paper sheet bundles. Each sheet is taken out and transported, and the damage classification or denomination classification is performed based on the inspection result.

  By the way, a heat-welding glue is applied as an adhesive to the binding band for binding the paper bundles, and the binding band is stretched over the cross and then bonded by heating and melting. At this time, the paper sheet and the binding band may be bonded together by glue, and in this case, it becomes difficult to remove the binding band, which causes a problem in the subsequent process.

Therefore, when removing the binding band, it is necessary to peel off the bonded portion of the binding band and the paper sheet. Conventionally, the binding band is compressed by a compressor in the gap between the paper sheet and the binding band. Air was blown to peel off the bonded portion (see, for example, Patent Document 1).
JP 2001-28070 A

  However, the method of spraying and peeling with compressed air has a problem that sufficient effects cannot be obtained when the paper sheets and the binding band are glued without a gap or when the glued area is large. there were.

  In addition, when the thickness and shape of the bundle of paper sheets vary, it is very difficult to adjust the air blowing position to an appropriate position.

  The present invention has been made by paying attention to the above circumstances, and the object of the present invention is to improve the bonding portion of the band material regardless of the bonding state of the paper sheet and the band material and the shape of the sheet bundle. An object of the present invention is to provide a strip material peeling device which can be peeled.

  In order to solve the above-mentioned problem, according to the first aspect of the present invention, a sheet bundle is wound around a plurality of stacked sheets, and a sheet bundle formed by bonding the band with an adhesive is conveyed to a predetermined position. A conveying unit; a holding unit that holds the sheet bundle conveyed to a predetermined position by the conveying unit with a pair of holding members; and the pair of the sheet bundles by rotating the pair of holding members in opposite directions. And a peeling means for peeling the adhesive portion of the band material from the paper sheet by applying a twisting force to the paper sheet.

  According to a second aspect of the present invention, there is provided a conveying means for winding a sheet material around a plurality of stacked paper sheets and conveying the sheet bundle formed by adhering the band material with an adhesive to a predetermined position, and the conveying means. A holding means for holding the paper sheet bundle conveyed to a predetermined position by a pair of holding materials, and moving the pair of holding materials in opposite directions to impart a displacement force to the paper sheet bundle. And a peeling means for peeling the adhesive portion of the strip from the paper sheet.

  The present invention holds a bundle of paper sheets with a pair of holding members, and rotates the pair of holding members in opposite directions or moves them in opposite directions in this sandwiched state. In order to apply a twisting force or a shifting force to deform the outer shape and peel off the adhesive part of the strip material, the paper sheet bundle and the strip material are adhered without gaps or over a wide range. Also, the adhesive part can be peeled off reliably.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.
FIG. 1 is a perspective view showing a strip peeling apparatus according to an embodiment of the present invention, and FIG. 2 is a plan view thereof.

  This strip material peeling apparatus is applied to, for example, a banknote inspection machine. This bill inspection machine stacks a predetermined number of paper sheets P such as banknotes or the like sealed with a sealing band k (hereinafter referred to as a paper sheet t) in a stacked manner. A bunched band K as a material is bundled in a cross shape (hereinafter referred to as a paper sheet bundle T). Then, the supplied sheet bundle T is disassembled into a sheet bundle t, and further, the sheet bundle t is unwound into a banknote of roses, taken out one by one and conveyed. Perform classification or denomination classification.

  By the way, a heat-sealable glue Ka is applied as an adhesive to the binding band K for binding the paper sheet bundle T, and the binding band K is bonded to the binding band K by being heated and melted after being stretched over a cross. Is done. At this time, the paper sheet and the binding band K may be adhered by the glue Ka. In this case, it is difficult to remove the binding band K, which causes a problem in the subsequent process.

  Therefore, when removing the binding band K, it is necessary to peel off the glued portion Kb as the bonding part of the binding band K from the paper sheet with a peeling device.

  This strip peeling apparatus includes a bundle transfer conveyor 1 as a transport unit for transferring the sheet bundle T to a peeling position (predetermined position) 2. At the peeling position 2, catch units 3a and 3b are provided as peeling means for holding the sheet bundle T on the bundle transfer conveyor 1 from both sides.

  A bundle positioning stopper 5 as a stop member for abutting the sheet bundle T is provided on one side of the catch unit 3a, 3b on the downstream side in the traveling direction of the sheet bundle T. A bundle arrival confirmation sensor 11 for confirming the arrival of the bundle is provided in the vicinity of the bundle positioning stopper 5, and the driving of the bundle transfer conveyor 1 is stopped based on the detection of the sheet bundle T by the bundle arrival confirmation sensor 11. It has come to be.

  FIG. 3 is a configuration diagram showing the catch unit 3a (3b).

  The catch unit 3 a (3 b) has a catch base block 14 as a holding member, and a plurality of finger units 9 are provided at one corner of the catch base block 14, that is, at the corners of the opposing surfaces of the catch base blocks 14, 14. Is provided.

  The clamping air cylinder 7 is connected to the other surface side of the catch base block 14, that is, the opposite surface of the catch base blocks 14, 14. This clamping air cylinder 7 is attached to a mounting base 8, and a bundle twisting pulse motor 27 is connected to the mounting base 8. The bundle twisting pulse motor 27 is attached to a mounting base 28, and this mounting base 28 is attached to a drive belt 29 that runs in the vertical direction. The driving belt 29 is stretched between the driving pulley 30a and the driven pulley 30b, and the driving pulley 30a is rotated forward and backward by the bundle lifting / lowering pulse motor 25.

  The catch base block 14 is moved in the advancing and retracting direction as indicated by the arrow a by driving the clamping air cylinder 7. That is, the catch base block 14 is moved to three positions: a retracted position, a positioning position, and a clamping position. The catch base blocks 14 of the catch units 3a and 3b are spaced apart from each other with a width that allows the sheet bundle T on the bundle transfer conveyor 1 to pass through in the retracted position, and the sheet bundle T is assumed in the holding position. They have a width dimension that is sufficiently narrower than the thinnest possible thickness dimension and are spaced apart from each other. Further, when the catch base block 14 is moved to the positioning position, the bundle positioning stopper 5 restricts the passage of the thinnest sheet bundle T that can be assumed, and the thickest sheet bundle T and the finger unit 9 do not interfere with each other. It is like that.

  The catch base block 14 is rotated in the forward and reverse directions as indicated by the arrow b by driving the bundle twisting pulse motor 27, and is raised and lowered as indicated by the arrow c by driving the bundle raising / lowering pulse motor 25. It has become.

  FIG. 4 is a block diagram showing the finger unit 9 described above.

  The finger units 9 are respectively attached to the corners on one side of the catch base block 14 via the finger base block 10. A finger arm 15 is rotatably attached to the finger base block 10 via a rotating shaft 17. A pinch plate 13 is rotatably attached to one end portion of the finger arm 15 via a rotating shaft 21, and a pinch plate 19 is rotatably attached to the other end portion via a rotating shaft 23. The finger arm 15 is urged by the spring 12 so as to rotate clockwise.

  As the catch base block 14 moves, the pinch plate 13 of the finger unit 9 comes into contact with the sheet bundle T, so that both side surfaces (only one side is shown) are pinched by the pinch plates 13 and 13 as shown in FIG. The pressure is held. At this time, the finger arms 15 and 15 are rotated about the rotation shaft 17, and the upper and lower surfaces (only the upper surface side is shown) of the sheet bundle T are pinched and held by the pinch plates 19 and 19. .

  Further, the pinch plates 13 and 19 that directly press the paper sheet bundle T have a mechanism that swings around the rotation shafts 21 and 23 in accordance with the end surface of the paper sheet bundle T. Even in the case of handling different types of bills as seen, it is possible to hold the sheet bundle T in the same manner as shown in FIG. 6 without changing the mechanism or control program or changing the ticket type. it can.

  Next, the operation of the strip stripping apparatus configured as described above will be described with reference to FIGS.

  The sheet bundle T placed on the bundle transfer conveyor 1 is transported as shown in FIG. 7A by the travel of the bundle transfer conveyor 1 and transferred to the peeling position 2 as shown in FIG. 7B. Is done. This sheet bundle T is stopped by abutting against the bundle positioning stoppers 5 and 5. At this time, the bundle arrival confirmation sensor 11 detects the sheet bundle T, and based on the detection of the sheet bundle T, the driving of the bundle transfer conveyor 1 is stopped.

  After stopping the driving of the bundle transfer conveyor 1, the catch base block 14a is advanced as shown in FIG. 8 (a), and the catch base block 14b is advanced as shown in FIG. 8 (b). The pinch plate 13 contacts the sheet bundle T. As a result of this contact, the finger arm 15 rotates about the rotation shaft 17 as shown in FIG. As a result, when the sheet bundle T is pressed from above and below by the pinch plates 19, 19, it is pressed from the left and right by the pinch plates 13, 13 and held with pressure.

  Thus, after the sheet bundle T is clamped and held by the catch base blocks 14a and 14b, the catch base blocks 14a and 14b are slightly moved upward by the bundle lifting pulse motor 25 as shown in FIG. Lifted.

  From this state, the bundle twisting pulse motor 27 of the catch unit 3a rotates by a prescribed pulse, and as shown in FIG. 10A, the catch base block 14a is rotated by a predetermined amount in the clockwise direction. At the same time, the bundle twisting pulse motor 27 of the catch unit 3b rotates by a prescribed pulse, and the catch base block 14b rotates counterclockwise by a predetermined angle. As a result, a twist is applied to the paper sheet bundle T, distortion occurs between the binding band K and the paper sheet P, and the glued portion Kb of the binding band K is peeled off from the paper sheet P.

  After that, the two bundle twisting pulse motors 27 of the catch units 3a and 3b are respectively rotated in the reverse direction by the number of pulses twice as described above, and in the reverse direction to the catch base blocks 14a and 14b as shown in FIG. 10 (b). Add twist to peel further. Thereafter, both the bundle twisting pulse motors 27 are returned to the initial positions.

  Next, the bundle raising / lowering pulse motor 25 of the catch unit 3a is rotated by a prescribed pulse, and simultaneously, the bundle raising / lowering pulse motor 25 of the catch unit 3b is rotated by a prescribed pulse in the reverse direction. As a result, as shown in FIG. 11 (a), one catch base block 14a is raised and the other catch base block 14b is lowered. The glued portion Kb is peeled from the paper sheet P.

  After that, by rotating the bundle raising / lowering pulse motor 25 of the catch units 3a and 3b in the reverse direction, the catch base blocks 14a and 14b are moved in the reverse direction as shown in FIG. The glued portion Kb of the tying band K is further peeled by moving up and down. Thereafter, both the bundle twisting pulse motors 27 and 25 are returned to the initial positions.

  After the paste removing process is completed in this way, the catch base blocks 14a and 14b are retracted to the retracted position as shown in FIG. 12, and the sheet bundle T is conveyed to the subsequent process by the travel of the bundle transfer conveyor 1. .

  By the way, when the peeling operation of the glued portion Kb of the binding band K is performed as described above, the outer shape of the sheet bundle T may be broken, and there is a concern that the post-processing may be adversely affected.

  Therefore, in this embodiment, as shown in FIG. 13, a positioning roller 31 is provided as a positioning means for positioning the outer shape of the sheet bundle T on the downstream side in the transport direction of the sheet bundle T. ing.

  The alignment roller 31 is rotatably attached to the lower end portion of the swing arm 33. A tension spring 35 is connected to the swing arm 33. The positioning roller 31 is pressed downward when the swing arm 33 is pulled by the tension spring 35.

  The lower end position of the alignment roller 31 when the sheet bundle T does not exist is sufficiently lower than the assumed lowest sheet bundle, and the position of the rotation shaft 31a of the alignment roller 31 is It is in a position sufficiently lower than the highest bundle of paper sheets.

  The alignment roller 31 is connected to a roller drive motor 39 via a drive transmission belt 37 and is rotated so as to be synchronized with the bundle transfer conveyor 1.

  When the sheet bundle T transferred by the bundle transfer conveyor 1 passes through the alignment roller 31, the upper surface side of the sheet bundle T is pressed by the alignment roller 31, and the sheet bundle T is displaced in the vertical direction. It is corrected and the influence on post-processing is eliminated.

  As described above, according to this embodiment, the glued portion Kb of the tying band K is deformed by twisting or applying a shifting force to the sheet bundle T and deforming its outer shape. Therefore, even if the paper sheet bundle T and the binding band K are glued without a gap or are glued over a wide range, the glued portion Kb can be reliably peeled off.

  Further, the finger arm 15 is rotated based on the pressure contact operation with respect to the paper sheet bundle T, and the pinch plates 13 and 13 on one end side thereof are used to pinch both sides of the paper sheet bundle T and the pinch plates 19 and 19 on the other end side. Since the upper and lower surface portions of the sheet bundle T are held under pressure, even the sheet bundle T having different dimensions can be handled without changing the mechanism / control program.

  Further, since not only the compression direction of the sheet bundle T but also the vertical direction is simultaneously held, even if a process for deforming the outer shape of the sheet bundle T is performed, the sheet bundle T can be held without being scattered.

  Further, since the positioning roller 31 is arranged in the exit direction of the paper sheet bundle T to correct the outer shape of the paper sheet bundle T, the problem reduction in the subsequent process is realized.

  Further, since the sheet bundle T is brought into contact with the stoppers 5 and 5 for positioning, there is no need for an independent driving source or mechanism for positioning the sheet bundle T, and only an improvement in assembly and cost reduction are realized. The occurrence of unnecessary problems can be suppressed by reducing the number of drive sources.

  Furthermore, stable performance is obtained without being affected by the width and height of the sheet bundle T, and the thickness when 1000 sheets are stacked, and the same is true regardless of the position of the glued portion. Get performance.

  Of course, the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the invention.

The perspective view which shows the peeling apparatus of the binding band of the paper sheet bundle which is one embodiment of this invention. The top view which shows the peeling apparatus. The block diagram which shows the catch unit. The block diagram which shows the finger unit of the catch unit. The figure which shows the state by which the paper sheet bundle was clamped by the same finger unit. The figure which shows the state by which the paper sheet bundle was clamped by the same finger unit. The figure which shows peeling operation | movement of the peeling apparatus. The figure which shows peeling operation | movement of the peeling apparatus. The figure which shows peeling operation | movement of the peeling apparatus. The figure which shows peeling operation | movement of the peeling apparatus. The figure which shows peeling operation | movement of the peeling apparatus. The figure which shows peeling operation | movement of the peeling apparatus. The block diagram which shows the paper sheet bundle alignment mechanism.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Bundle transfer conveyor (conveying means), P ... Paper sheets, K ... Binding band (band material), Ka ... Glue (adhesive), T ... Paper sheet bundle, 2 ... Peeling position (predetermined position), 3a , 3b ... catch unit (peeling means), 14a, 14b ... catch base block (holding member), 15 ... finger arm, 5 ... stopper (stop member), 31 ... positioning roller (positioning means).

Claims (5)

A transport means for transporting a sheet bundle formed by winding a strip around a plurality of stacked paper sheets and bonding the strip with an adhesive to a predetermined position;
Holding means for holding the paper sheet bundle conveyed to a predetermined position by the conveying means with a pair of holding materials;
A peeling means for peeling the adhesive portion of the band material from the paper sheet by rotating the pair of holding materials in opposite directions to apply a twisting force to the paper sheet bundle;
A strip material peeling apparatus comprising: A transport means for transporting a sheet bundle formed by winding a strip around a plurality of stacked paper sheets and bonding the strip with an adhesive to a predetermined position;
Holding means for holding the paper sheet bundle conveyed to a predetermined position by the conveying means with a pair of holding materials;
A peeling means for peeling the adhesive portion of the band material from the paper sheet by moving the pair of holding materials in opposite directions to give a displacement force to the paper sheet bundle;
A strip material peeling apparatus comprising: The pair of holding members of the holding means is provided with a plurality of substantially L-shaped arms rotatably provided at corners of the opposing surfaces, and rotatably provided at both ends of the plurality of arms. The both sides and the upper surface of the sheet bundle are clamped and held by a pinch portion of the arm that has a pinch portion and rotates based on the pressure contact operation of the pair of holding members against the sheet bundle. The strip material peeling apparatus according to claim 1 or 2. The belt member according to claim 1 or 2, further comprising a stop member that is provided on the pair of holding members and stops the contacted sheet bundle that is conveyed to a predetermined position by the conveying unit. Peeling device. The strip material peeling apparatus according to claim 1 or 2, further comprising a positioning means for positioning the outer shape of the sheet bundle that has been deformed by being twisted or shifted by the peeling means. .

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