JP2010099978A - Paper sheets turning mechanism and paper sheets counter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper sheets turning mechanism capable of turning over paper sheets arranged horizontally and taking off the paper sheets of booklets. <P>SOLUTION: The paper turning mechanism includes: a sucking part that has suction holes for sucking paper sheets and that turns over paper sheets; and a protective plate that covers a part of the corners of the paper sheets before turning over. The sucking part changes to a sucking state for sucking the paper sheets before turning them over, a turning over state for turning over the paper sheets by moving them upward while sucking them, and a releasing state for releasing the paper sheets. When the sucking part changes from the releasing state to the sucking state, it comes close to the paper sheets before the turning over so that the suction holes pass over the corners of the paper sheets covered with the protective plate. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a paper sheet turning mechanism for turning paper sheets and a paper sheet counter.

There is Patent Document 1 as a conventional technique for adsorbing and counting paper sheets. 1A to 1E show the operation of the paper sheet counter described in Patent Document 1 in time series. The corners of a large number of paper sheets S superimposed on the table 42 are positioned immediately above the suction unit 211, and the motor and the vacuum pump are activated. One sheet S at the lowermost end is adsorbed when the adsorbing part 211 rises, and the wiper pin travels to the right above the adsorbing part 211 while the adsorbing part 211 descends while being inclined to the lower left. 217 is dispelled to the right. Next, the wiper pin 217 returns to the left through the lower portion of the suction portion 211, and at the same time, the suction portion 211 sucks the lowermost sheet S of the stacked sheets S ascending. By counting one sheet in one cycle and counting the number of rotations with an appropriate means, the number of sheets can be counted.
Japanese Patent No. 1060966

  The adsorption part 211 is located immediately below the corner of the paper sheet S. Therefore, the paper sheet S has a problem that when it is wiped rightward by the wiper pin 217 that travels right above the suction portion 211, a load is applied, and the corner portion is bent and wrinkled. Moreover, since the adsorption | suction part 211 adsorb | sucks paper sheets from the downward direction of paper sheets, the structure which makes the corner | angular part of paper sheets protrude from the stand 42 is needed. If the distance from the corner of the paper sheet to the table 42 is large, there is a problem that the paper sheet hangs down before being adsorbed by the adsorbing unit 211 and cannot be counted properly. On the other hand, when the distance from the corner of the paper sheet to the table 42 is small, when counting paper sheets with strong elastic force such as cardboard, the elastic force becomes stronger than the negative pressure of the suction pump, and the adsorbing part remains adsorbed. There is a problem that 211 cannot be lowered while tilting in the lower left direction, and appropriate counting cannot be performed.

  The paper sheet turning mechanism according to the present invention includes a suction portion that has a suction hole for sucking paper sheets and flips the paper sheets, and a protective plate that covers a part of the corners of the paper sheets before turning. The adsorbing part changes to an adsorbing state that adsorbs the paper before turning, a turning state that flips up the paper by moving upward while adsorbing the paper, and a released state that releases the paper Then, when changing from the released state to the adsorbed state, the suction hole approaches the paper sheet before turning so as to pass above the corner of the paper sheet covered with the protective plate.

  In the present invention, the suction hole moves out of the plane of the paper sheet when the suction part changes from the turning state in which the paper sheet is turned up to the released state in which the paper sheet is released, so that a load is applied to the paper sheet. It can be turned up. Moreover, since the adsorption | suction part 211 adsorb | sucks paper sheets from the upper direction of paper sheets, it can count appropriately, without paper sheets hanging down. Furthermore, since the distance from the position where the paper sheet is suppressed to the corner of the paper sheet can be increased, it is possible to count thick paper and the like without generating strong elastic force.

  Here, examples of the present invention will be described.

[Paper counting machine]
FIG. 2A is a plan view of a configuration example of the paper sheet counter according to the first embodiment, and FIG. 2B is a side view of a configuration example of the paper sheet counter according to the first embodiment. Hereinafter, in each figure, the same code | symbol is attached | subjected about the same part. The paper sheet counting machine 100 has a suction hole for adsorbing the paper sheet S, two adsorbing portions 11 and 12 that alternately turn up the paper sheet S, and a corner portion of the paper sheet S before turning. The protective plate 30 to be covered, the paper sheet S before being turned up, the height adjusting unit 40 for adjusting the distance between the suction portions 11 and 12 and the protective plate 30 to be a predetermined interval, and the turned paper sheet S Is included (the height adjusting unit 40 is not shown). A stand 42 for holding the paper sheet S may be provided. On the counting unit 50, the suction units 11 and 12, the protection plate 30 and the height adjustment unit 40 are arranged. The combination of the suction part and the protective plate is called a paper sheet turning mechanism. Paper sheets include printing paper, information paper, wrapping paper, hybrid paper, banknotes, and the like, and further include those in booklets. In this embodiment, the paper sheet S has the size of Japanese Industrial Standard A row No. 3, but the thickness, weight, material, shape, size, etc. of the paper sheet (hereinafter referred to as “thickness”). Can be appropriately changed.

[Suction part]
FIG. 3 shows a configuration example of the suction unit 11. For example, the adsorbing part 11 is plate-shaped so that it can be easily inserted between the rolled-up paper sheet and the paper sheet before turning, and the insertion surface has rounded corners so as not to be caught by the paper sheet. Yes. For example, the width is about 12 mm, the length is about 60 mm, and the thickness is about 4 mm. The adsorption part 11 is hollow. The root portion 21 is connected to the operating arm 25. A circular suction hole 15 having a diameter of about 3.5 to 4 mm is provided on the surface facing the paper sheet S at the time of suction. The suction part 11 is connected to the vacuum pump by a tube passing through the operating arm 25, and a negative pressure is generated in the suction hole 15. The negative pressure is about 80 kPa. The suction part 11 is formed of a material that is not deformed by this negative pressure. For example, it is formed of stainless steel. The suction portion 12 has the same configuration, and is connected to the operation arm 26 and has a suction hole 16. The operation arms 25 and 26 are connected to a link mechanism or the like, and are configured to enable the operation of the suction unit described later. Note that this embodiment does not limit the content of the invention. For example, the size, diameter, material, shape, etc. of the suction part and the suction hole can be appropriately changed depending on the thickness of the paper sheet to be sucked. Further, the vacuum pump may not be provided in the paper sheet counter, and the negative pressure can be appropriately changed depending on the thickness of the paper sheet.

[Protective plate]
The protection plate 30 has a sheet shape. For example, the width is about 20 mm, the length is about 25-27 mm, and the thickness is about 0.1-0.5 mm. Examples of materials include polyethylene (PE), polypropylene (PP), vinyl chloride (PVC), fluorine (PTFE, PFA, etc.), polycarbonate (PC), polyester (PET), polyamide (PA), polyimide, polyetherimide. Spring steel (stainless steel, etc.), composite materials (heterogeneous multi-layer structure, etc.), etc. are conceivable and have appropriate flexibility. The appropriate flexibility means that the protection plate 30 bends so as not to prevent the sheet S from being turned up when the suction portions 11 and 12 are changed from the suction state to the turning state. It varies depending on the thickness of the paper sheet, the magnitude of the negative pressure, and the like. In addition, each state of an adsorption | suction part is mentioned later.

  4A is a plan view showing an arrangement example of the protective plate 30 and the corner S ′ of the paper sheet, and FIG. 4B is an arrangement of the corner S ′ of the protective plate 30 and the paper sheet. It is a side view which shows an example. The corner S ′ of the paper sheet S before turning is covered with the protective plate 30 by about 3 to 4 mm. In this example, the angle formed between the side forming the corner S ′ of the paper sheet and the side overlapping the paper sheet S of the protection plate 30 is 45 °. The bisector of the corner S ′ passes through the center of the suction position 15 ′ when the suction holes 15 and 16 suck the paper sheet S. With such an arrangement, the suction portions 11 and 12 can turn up the paper sheet S with a minimum negative pressure. In addition, a present Example does not limit the content of invention. For example, the size, shape, and material of the protective plate are examples, and can be appropriately changed depending on the thickness of the paper sheet. For example, it may be a sheet shape such as a triangle or a semicircle. Further, the arrangement of the protective plate 30 and the paper sheet S is merely an example, and the angle formed between the side forming the corner S ′ of the paper sheet and the side overlapping the paper sheet S of the protective plate 30 is not necessarily 45. It does not have to be °. Further, the corner portion S ′ of the paper sheet S is not necessarily a right angle, and may be rounded.

[Height adjustment section]
The height adjusting unit 40 applies light 45 from the side to the stacked paper sheets S and detects the height with the optical sensor 44. The height adjustment unit 40 includes a drive unit, and the suction units 11, 12 and the protection unit so that the distance between the paper sheet S before being turned up, the suction units 11, 12, and the protection plate 30 is a predetermined interval. The counter 50 on which the plate 30 is disposed is lowered and adjusted. In addition, a present Example does not limit the content of invention. For example, the sensor that detects the height is not limited to the optical sensor 44, and may be any sensor that can detect the height, the distance, and the like. The counter 42 on which the paper sheet S is arranged may be moved up and down without moving the counting unit up and down. That is, by using the drive unit, the stage 42 is raised and adjusted so that the distance between the paper sheet S before being turned up, the suction units 11 and 12 and the protection plate 30 is a predetermined interval.

[Counter]
The counting unit 50 counts the number of sheets in which the suction units 11 and 12 have turned the sheets S. Note that the counting unit may count from the number of rotations or the number of suction of the suction unit, or may count using a sensor or the like. In addition, the counting unit 50 includes the suction units 11 and 12, the protection plate 30, and the height adjusting unit 40. When the height adjusting unit moves the counting unit up and down using the drive unit, The parts also move up and down in conjunction with each other. However, the suction units 11 and 12, the protection plate 30, and the height adjustment unit 40 do not necessarily have to be disposed on the counting unit 50, and the suction units 11 and 12 and the protection plate are used using the drive unit of the height adjustment unit 40. Only 30 may be moved up and down.

[Operation of suction part]
FIG. 5 shows an outline of turning up the paper sheet S. For ease of explanation, the operation arms 25 and 26 are not shown in the following drawings. The adsorbing unit 11 adsorbs the sheet S before being turned around in the vicinity of the corner S ′ covered with the protective plate 30 and moves upward while adsorbing the sheet S by adsorbing the sheet S. The state S changes to a turning state 11b in which the paper S is turned up and a release state 11c in which the paper S is released. When changing from the release state 11c to the suction state 11a, the suction hole 15 approaches the paper sheet before turning so as to pass above the corner S ′ of the paper sheet covered with the protection plate 30. The suction unit 12 operates in the same manner. Here, the upper side means not only the upper side in the vertical direction but also the upper region where the effect of the protection plate 30 is exerted. Details of the effect of the protection plate 30 will be described later. Further, the change from the turned state 11b to the released state 11c may be performed by releasing the negative pressure, or may be performed by moving out of the paper sheet plane in which the suction hole 15 is turned up. However, when the suction hole 15 is moved, since the paper sheet is adsorbed, there is a possibility that the paper sheet is shifted in the moving direction of the adsorbing portion. In this case, if necessary, a weight or the like may be provided to prevent the paper sheets from shifting. As the position to be suppressed, the central part of the paper sheet or the vicinity of the diagonal of the corner part to which the suction part sucks can be considered.

  FIG. 6 shows an outline in which the suction unit 11 is turned and the suction unit 12 is inserted between paper sheets. The timing at which one suction part 11 changes from the turning state 11b to the released state 11c is that the other suction part 12 is inserted between the paper sheet that the suction part 11 is turning and the paper sheet before turning. It is the timing that can be done. However, only after the other suction part 12 is inserted between the paper sheet that the suction part 11 is turned and the paper sheet before being turned, the suction part 11 changes from the turned state 11b to the released state 11c. Does not mean. For example, the suction part 11 may change from the turning state 11b to the release state 11c, and the other suction part 12 may be inserted between the falling paper sheet and the paper sheet before turning. FIG. 7 shows an outline in which the suction unit 11 changes from the turning state to the release state, and the suction unit 12 changes from the suction state to the turning state. The suction part 11 changes from the turning state 11b to the release state 11c, and the suction part 12 changes from the suction state 12a to the turning state 12b. FIG. 8 shows an outline in which the suction unit 12 is turned and the suction unit 11 is inserted between paper sheets. The suction part 11 changes from the released state 11c to the suction state 11a, and the suction part 11 is inserted between the paper sheet that the suction part 12 is turned over and the paper sheet before being turned. Thereafter, the suction unit 12 is in the released state 12c, the suction unit 11 is changed from the suction state 11a to the turning state 11b, and is in the state of FIG. By repeating this, the paper sheets are alternately turned up and counted. Note that the timing at which one suction portion changes from the suction state to the turning state may be at the same time as the timing at which the other suction portion changes from the turning state to the release state. In addition, in order that the adsorption | suction part 11 does not contact the operation | movement arm 26 connected with the adsorption | suction part 12, and in order to adsorb | suck in the same position as the adsorption | suction part 12, as shown in FIG. Located in the center, in the length direction, from the center to the tip portion 23 side. Note that this embodiment does not limit the content of the invention. For example, the position of the suction hole and the like can be appropriately changed depending on the thickness of the paper sheet to be adsorbed. For example, the suction part itself may be shortened and a suction hole may be provided in the vicinity of the tip part. Note that the counted paper sheets are alternately stacked on top of the suction units 11 and 12. As described above, when the paper sheets are stacked on the upper portion of the suction portion, it is considered that the positions of the paper sheets after counting are shifted. The weight described above is also effective for preventing such a shift. Further, a frame may be provided on the table 42 on which the paper sheet S is arranged to prevent the deviation.

  By adopting such a configuration, when the suction portions 11 and 12 are changed from the turned state 11b and 12b in which the paper sheets S are turned up to the released state 11c and 12c in which the paper sheets are released, the suction holes 15 and 16 are changed. Since it moves out of the plane of the paper sheet S, it is possible to prevent the paper sheet S from being bent, and to prevent bending and wrinkling near the corner portion S ′. Further, since the adsorbing unit 211 adsorbs the paper sheet S from above the paper sheet S, a configuration in which the corner portion S ′ of the paper sheet S protrudes from the table 42 is not necessary. As a result, the paper sheets S can be counted properly without hanging down. Furthermore, not only when the paper sheet S is not suppressed with a weight or the like, but also when it is suppressed, the distance from the position where the paper sheet S is suppressed to the corner S ′ of the paper sheet can be increased, which is strong. Cardboard and the like can be counted without generating elastic force.

[Effect of protective plate]
Here, the effect of providing the protective plate 30 will be described. When the other adsorbing part 12 is inserted between the paper sheet turned by the adsorbing part 11 and the paper sheet before turning, the corner of the paper sheet is inserted into the suction hole 16 on the lower surface of the adsorbing part 12. There is a possibility of damaging the paper sheet S by hooking S ′. FIG. 9 shows an example in which the sheet S <b> 2 ′ is caught in the suction hole 16 without the protection plate 30. For example, the corner S ′ of the paper sheet may be bent and turned up during manufacture. In particular, a paper sheet on which printing or the like has been performed may cause the corner portion S ′ to warp up and down and turn up. In such a case, the suction hole 16 of the other suction part 12 is caught by the paper sheet S2 in the turned-up state, and the paper sheet S2 is damaged. FIG. 10 shows an example in which the protection plate 30 prevents the paper sheet corner S2 ′ from being caught in the suction hole 16. By covering the corner S2 ′ of the stacked paper sheets with the protective plate 30, the corner S2 ′ of the paper sheets is prevented from entering the suction holes 15 and 16 of the suction portions 11 and 12, and the paper sheets There is an effect that the problem of damaging S2 can be prevented. This effect can be obtained in a paper sheet turning mechanism that is a combination of an adsorption portion and a protective plate. That is, it is not always necessary to count paper sheets.

[Modification 1]
Only parts different from the first embodiment will be described. The suction part of the paper sheet turning mechanism is only the suction part 11, and has a support part 17 instead of the suction part 12. The support body 17 has the same shape as the suction part 11, is formed of stainless steel, does not have a suction hole, and is not connected to a vacuum pump. Therefore, the paper sheet S cannot be adsorbed. Note that this modification does not limit the content of the invention. The size of the support 17 can be changed as appropriate.

  FIG. 11 shows a change in the state of the support portion 17. The support unit 17 includes a ready state 17a for waiting for the turned-up paper sheets to fall, a support state 17b for preventing the turned-up paper sheets from falling, and before turning the paper sheets turned by the adsorbing unit 11. The standby state 17c is waited for to enter between the paper sheets.

  FIG. 12 shows an outline in which the suction unit 11 turns up the paper sheet S. The timing at which the support unit 17 changes from the support state 17b to the standby state 17c is a timing at which the suction unit 11 can be inserted between the paper sheet supported by the support unit 17 and the paper sheet before turning. is there. The support part 17 will be in the standby state 17c, and the adsorption | suction part 11 will change from the adsorption | suction state 11b to the turning state 11c. A support portion 17 is inserted between the paper sheet in which the suction portion 11 is turned and the paper sheet before being turned. The support part 17 changes to the preparation state 17a, and the adsorption | suction part 11 changes to the releasing state 11c. The turned-up paper sheets fall to the support portion 17 in the preparation state 17a, and the support portion 17 changes to the support state 17b. The suction part 11 is inserted between the paper sheet supported by the support part 17 and the paper sheet before turning. By repeating this, the suction unit 11 turns up the paper sheets and counts them. Note that the counted paper sheets are alternately stacked on top of the adsorption unit 11 and the support unit 17. The effect of this invention can be acquired by setting it as such a structure.

[Modification 2]
Only parts different from the first embodiment will be described. The suction part of the paper sheet turning mechanism is only the suction part 11. FIG. 13 shows an outline in which the suction unit 11 turns up the paper sheet S. The operation of the suction unit is the same in that the suction state 11a, the turning state 11b, and the release state 11c are changed.

  The suction part 11 changes from the turning state 11b to the release state 11c, and the suction part 11 is inserted between the paper sheet that the suction part 11 itself has turned and the paper sheet before being turned. That is, the adsorbing portion changes from the turned state to the adsorbed state through the released state faster than the speed at which the turned-up paper sheets fall. By repeating this, the paper sheets are turned up and counted. The effect of this invention can be acquired by setting it as such a structure.

[Modification 3]
Only parts different from the first embodiment will be described. The number of adsorbing portions of the paper sheet turning mechanism is N (N ≧ 3). FIG. 14 shows an outline in which _N adsorbing portions 11 ₁ ,..., 11 _N turn up the paper sheet S. Timing varying one suction unit 11 ₁ from the turning state 11 1 _b in the released state 11 1 _c, the other suction portion between the sheet prior to turning the paper sheet suction unit 11 ₁ is turned over a timing which can be inserted 11 _2. Suction unit 11 ₁ is the released state, suction unit 11 ₂ is changed to state 11 2 _b turn from the adsorption state 11 2 _a, between the sheet prior to turning the paper sheet is turned over the suction unit 11 ₂ other suction portion 11 ₃ is inserted into. Successively, the suction unit 11 is inserted, after the suction unit 11 _N is inserted, the suction unit 11 ₁ is inserted. By repeating this, the paper sheets are turned up and counted. The effect of this invention can be acquired by setting it as such a structure. The order to be inserted in the suction unit is always _{11 1,} 11 2,..., May not be the order of 11 _N, for example, after the suction unit 11 ₂ is inserted, the suction unit 11 ₁ is inserted again May be.

FIGS. 1A to 1E are diagrams showing operations of the paper sheet counter described in Patent Document 1 in time series. 2A is a plan view of the configuration example of the paper sheet counter according to the first embodiment, and FIG. 2B is a side view of the configuration example of the paper sheet counter according to the first embodiment. The figure which shows the structural example of the adsorption | suction part. 4A is a plan view showing an arrangement example of the protective plate 30 and the corner S ′ of the paper sheet, and FIG. 4B is an arrangement of the corner S ′ of the protective plate 30 and the paper sheet. It is a side view which shows an example. The figure which shows the outline | summary which turns up the paper sheet S. The figure which shows the outline in which the adsorption | suction part 11 is turned, and the adsorption | suction part 12 is inserted between paper sheets. The figure which shows the outline from which the adsorption | suction part 11 changes from a turning state to a releasing state, and the adsorption | suction part 12 changes from an adsorption state to a turning state. The figure which shows the outline in which the adsorption | suction part 12 is turned and the adsorption | suction part 11 is inserted between paper sheets. The figure which shows the example which does not have the protection board 30 but S2 'of paper sheets is hooked in the suction hole 16. FIG. The figure which shows the example which prevents the corner | angular part S2 'of paper sheets from being caught by the suction hole 16 with the protection board 30. FIG. The figure which shows the state change of the support part. The figure which shows the outline | summary in which the adsorption | suction part 11 of the modification 1 turns up the paper sheet S. The figure which shows the outline | summary in which the adsorption | suction part 11 of the modification 2 turns up the paper sheet S. The N adsorption units ₁₁ 1,..., Shows a summary of 11 _N'll turn the sheets S.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11, 12 Adsorption part 15, 16 Suction hole 30 Protection board 40 Height adjustment part 42 Stand 44 Optical sensor 45 Light 100 Paper sheet counter

Claims (3)

It has a suction part that has a suction hole for adsorbing paper sheets and flips up the paper sheets, and a protective plate that covers the corners of the paper sheets before turning.
The adsorbing section releases an adsorbing state for adsorbing the paper sheets before turning, a turning state for turning up the paper sheets by moving upward while adsorbing the paper sheets, and releasing the paper sheets The paper sheet before turning so that the suction hole passes above the corner of the paper sheet covered with the protective plate when the state changes to the released state and changes from the released state to the adsorbed state. approach,
This is a paper sheet turning mechanism. A paper sheet turning mechanism according to claim 1,
The two suction portions that alternately turn up the paper sheets are provided, and the timing at which one suction portion changes from the turned state to the released state is determined by the paper sheets that are turned and the paper sheets before being turned. Is the timing at which the other suction part can be inserted between
The protective plate bends so as not to prevent the paper sheets from being turned up when the suction portion changes from the suction state to the turning state.
This is a paper sheet turning mechanism. Two adsorbing portions having suction holes for adsorbing paper sheets and alternately turning up the paper sheets, a protective plate covering the corners of the paper sheets before turning, and the paper sheets before turning up; A height adjusting unit that adjusts the distance between the suction unit and the protection plate to be a predetermined interval; and a counting unit that counts the turned paper sheets.
The two adsorbing portions adsorb the paper sheets before being turned in the vicinity of the corners covered with a protective plate, and move upward while adsorbing the paper sheets. When the leaf is turned up and the release state where the paper is released, and when changing from the release state to the suction state, the front reciprocating suction hole is covered with the protection plate. The timing at which one adsorbing part changes from the turned state to the released state is changed to the state before the turning of the paper sheet that the adsorbing part is turned so as to pass above the corner part. It is the timing at which the other suction part can be inserted between the paper sheets,
The protective plate bends so as not to prevent the paper sheets from being turned up when the suction portion changes from the suction state to the turning state.
A paper sheet counter characterized by that.

Images