JPH0633122B2 - Paper reversing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a sheet reversing device, for example, a banknote depositing / dispensing machine, a banknote sorting machine, and a reading sorting machine of cards and slips. The present invention relates to a paper sheet reversing device capable of performing reversal feeding with the rear end of the conveyed paper sheet as the leading end in the paper sheet processing machine.

(Prior Art) Conventionally, a paper sheet reversing device used in such a paper sheet processing machine reverses the back paper sheets in the front and back paper sheets as schematically shown in FIG. It is known to do so.

In this reversing device, the conveyed paper sheet P is discriminated by a discriminator a installed on the conveyance path, and when the discrimination result is a cover sheet, the sheet is conveyed straight to the right in the drawing, In the case of paper sheets, the switching gate b is switched, guided downward, and brought into contact with the stopper c. In this case, the entrance detectors d and d'detect the entrance of the paper sheet, and the solenoid e is operated by the detection signal to press the free roller f against the drive belt g so that the back paper sheet is fed in the opposite direction. It was made.

(Problems to be Solved by the Invention) However, in the above-described conventional reversing device, only one sheet is sent, and the sheet is reversed and sent out.
There is no special problem in the case of reversing feeding of paper sheets that are sent at sufficient intervals, but if the transportation speed of the paper sheets is fast or the transportation interval between the paper sheets is narrow. , The next back sheet will be sent into the paper reversing space while the reversing sheet is being sent out by the operation of the solenoid e, so that the next back sheet cannot be reversed and sent out, Paper sheets will be clogged in the space.

Therefore, in the conventional apparatus shown in FIG. 4, the distance between the paper sheets must be set to a value sufficient for reversing the feeding of each sheet, and at the same time, the conveying speed must be set to a very low value. As a result, the processing speed and processing capacity of the paper sheet processor will be greatly reduced.

In recent years, in particular, it has been required to increase the processing speed of paper sheets, and it is required to continuously send out paper sheets while reversing the continuously sent paper sheets. In the present situation, a sheet reversing device capable of responding to this is not yet provided.

In view of the above problems, the present invention quickly reverses only the paper sheets that need to be reversed at high speed and continuously, and does not reverse the reversed paper sheets. The present invention has been made for the purpose of providing a paper sheet reversing device capable of joining a paper sheet at a feeding interval before reversing.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, the present invention provides an inlet portion A into which sheets before front and back alignment are fed, a forward direction outlet portion B that feeds out sheets in the same direction as the sheet feeding direction, and a sheet. A reversing unit having a return direction outlet section C for sending out paper sheets in a direction opposite to the paper feeding direction, and an identifying means for feeding the paper sheets into the entrance section A and for identifying the front and back sides of the paper sheets. A carry-in path, a first conveying path for receiving and conveying the paper sheets discharged from the forward direction exit portion B, and a second conveying path for receiving and conveying the paper sheets discharged from the forward direction exit portion C And provided following the first and second conveyance paths,
A sheet reversing device having a confluent conveying path for converging and conveying the sheets conveyed from each conveying path, wherein the reversing section includes an inlet section A, a forward-direction outlet section B, and a reconveying section. The directional outlets C are used as vertices, and the sides AB and BC are arranged so as to form a substantially inverted isosceles triangular reversal space having two equal sides.
Between the inlet portion A and the outgoing direction outlet portion B, the paper sheets are put in the inlet portion A.
From the forward direction outlet B to the backward direction outlet C, and the paper sheet between the forward direction outlet B and the backward direction outlet C. It is located between the inlet belt A and the outlet portion C in the backward feeding direction, and is in contact with the forward belt and the backward feeding belt and is in contact with the forward feeding belt which is unrelated to the backward feeding belt and the backward feeding belt. Further, the inlet / outlet forming rotator forming the backward feeding outlet C and the forward feeding outlet B facing and contacting the forward feeding belt, gripping the forward end of the paper sheet in the forward feeding direction. It is provided immediately before the gripping conveying body that conveys the sheet to the forward direction outlet port B, and when it advances to a position that intersects the belt surface of the forward belt, the sheet comes into contact with the forward end of the sheet in the forward direction. Passage stop in the feeding direction, and passage stop to allow paper sheets to go out when retreating from the advanced position One side, and when advancing into the reversing space, it guides the paper sheets to be forwarded by the forward belt, and when the paper leaves the reversing space, allows the paper sheets to move from the forward belt side to the transport belt side. And a movable guide part that is located at a side position in the conveyance width direction of the inlet / outlet forming rotator, and moves the trailing end of the paper sheet stopped by the path stopping part from the forward belt side to the backward belt side. An impeller having elastic blades on its peripheral surface, and the length of the first transport path is
It is characterized in that it is set to be substantially equal to the sum of the length of the second conveying path and the peripheral length of the entrance forming rotary member from the entrance portion A to the returning direction exit portion C.

(Operation) When the processed paper sheets that are continuously conveyed at a constant interval in the carry-in path are the cover paper sheets, the path stop piece is located in the retreat space. After entering the reversal space from the inlet, it is sent to the confluent transfer path through the first transfer path and then to the post-processing section. When the paper sheet is a back paper sheet, the movable guide piece crosses the forward belt, so that the forward end of the back paper sheet is blocked by the path stopping piece and moves to the return belt. It is sent to the confluent transfer path through the two transfer paths and then to the post-processing section. At this time, the length of the first transport path is set to be substantially equal to the sum of the length of the second transport path and the peripheral length from the entrance portion to the exit portion of the forward path, so that it is constant with respect to the preceding paper sheets. Are transported at intervals of.

(Examples) The present invention will be described below with reference to the examples shown in the drawings.

In the following description of the examples, the front-sided paper sheets refer to paper sheets that do not require front-back reversal, and the back-faced paper sheets refer to paper sheets that require front-back reversal. Of the paper sheets, they do not necessarily correspond to the front surface and the back surface of a paper sheet, such as bills, and the front surface and the back surface may be determined according to the device when the front and back identification portions are set for identification.

FIG. 1 shows a longitudinal section of an embodiment of a sheet reversing device according to the present invention, FIG. 2 shows the same plane, and FIGS. 3 (A) to (F) show an operating state. There is.

In this embodiment, the first belt 1, the second belt 2,
Third belt 3, fourth belt 4, and conveyor belts 5, 5
The transport path structure based on the combination of: a path stop portion piece 6a that enables reverse feeding with the trailing end of the paper sheet as the leading end during conveyance of the paper sheet, the movable guide piece 6b, and the paper sheet that is reversed. And an impeller 7 fixed to a shaft 9 in order to change the path of the sheet, and in addition to this, a discriminating means 8 for discriminating between the front and the back of the paper sheet, and the course stopping portion 6a and the movable guide based on the discrimination result. Drive means SD for advancing and retracting the piece 6b is attached.

The first belt 1 includes pulleys 14, 15, 16, 1
It is wound endlessly over 7, 18 and 19, and of these, the pulleys 15 and 16 are wound around the second belt 2 and the fourth belt 4.

The second belt 2 is wound endlessly over the pulleys 20, 21, 22, and 23 in addition to the pulley 15.
The pulley 20 is wound around the third belt 3.

The third belt 3 is wound around the pulley 20 and a pulley 24 between the pulley 20 and the pulley 16.

The fourth belt 4 is a pulley 16 of the first belt 1.
And a pulley 26 provided at a position beyond the pulley 24 of the third belt 3 and these pulleys 2
The belts 4 and 26 are arranged so that the fourth and third belts 4 and 3 are tightly attached to each other, and the belts 3 and 4 are pressed against each other in the area between the pulleys 24 and 26.

The unloading belts 5 and 5 that form the merging / conveying path have a pair of belt configurations, and are provided between the pulleys 27 and 27 on the shafts of the pulleys 17 and 21 of the first belt 1 and the second belt 2 and a pulley (not shown). The sheet is wound around, and the sheet is conveyed toward the sheet storage unit, for example.

The first belt 1, the second belt 2, and the third belt 3 form a substantially isosceles triangular reversal space. The three vertices of the reversal space, that is, the contact points between the first belt 1 and the second belt 2, The contact points of the extension lines of the first belt 1 and the third belt 3 and the contact points of the second belt 2 and the third belt 3 are the inlet portion A, the forward direction outlet portion B, and the backward direction outlet portion C of the reversing space, respectively.
Has become. Further, a point where the pulley 17 and the pulley 21 are in contact is a merging point D where the sheets conveyed by the first belt 1 and the second belt 2 merge. Further, an end portion of the upper surface of the third belt 3 on the pulley 24 side is E, and a stop position at which the path stop portion 6a advances at a position immediately before the forward exit port B to stop forward paper sheets. Assuming B ′, the relationship of each passage is as follows. First belt 1 and second belt 2
The front part of the entrance portion A has identification means 8 for identifying the front and back of the paper sheet, and the carrying-in path 10 for carrying the paper sheet into the entrance portion A and the first belt 1 are reversed. Space forming unit A
B'is composed of the forward transport area 11, the first belt 1 and the fourth belt 4, and the first transport path 13 for transporting the paper sheets which has not been turned upside down between B'D following the forward transport area 11. , The reversal space forming portion area EC of the third belt 3 is constituted by the refeed area 25, the second belt 2 and the third belt 3, and the CDs following the refeed area 25 are turned upside down. And the second converging point D constituted by the second conveyor path 12 and the conveyor belts 5 and 5
This is a merging / conveying path for merging and conveying the paper sheets conveyed from the respective conveying paths following the first and second conveying paths. Further, the pulley 15 and the portion of the second belt 2 wound around the pulley 15 serve as an entrance / exit forming rotary member that forms the entrance A and the return direction exit C of the reversing space, and the pulley 16
The contact portion between the first belt 1 and the fourth belt 4 wound around is a gripping conveyance body that forms the forward direction outlet portion B.

The path stopping part 6a and the movable guide part 6b for guiding the sheets conveyed by the first belt 1 are constituted by one member 6 in the illustrated embodiment, and the path stopping part 6a is At the stop position B ′ described above, it is freely movable between a position where it projects across the first belt 1 (the position shown by the alternate long and short dash line) and a retracted position below the first belt 1 (the position shown by the solid line). Is provided on the movable guide piece 6
Reference numeral b indicates a lower surface of the paper sheet conveyed by the first belt 1 when the path stop portion 6a is located below the first belt 1 and constitutes a part of the forward movement area 11. In this embodiment, four members 6 are provided, the base of each member 6 is fixed to a shaft 28, and this shaft 28 is connected to a plunger 30 of a solenoid 29 which is a drive means SD, and this plunger 30
When it moves forward, it takes the position shown by the solid line in FIG. 1, and the plunger 30 is pulled in or projected to a position intersecting the conveyance surface of the first belt 1.

Two of the impellers 7 are provided on the shaft 9 of the pulley 15 at a position corresponding to the start end of the forward movement area 11 constituted by the first belt 1 and axially displaced from the pulley 15. The impeller 7 has four elastic and flexible blades 7a made of a material such as rubber having flexibility in a roller-shaped body, and the diameter of the body is smaller than the diameter of the pulley 15. The outer diameter including the elastic blades is set to be larger than the diameter of the pulley 15, and in normal times, elastic blades 7a extending directly due to its own elasticity intersect the belt surfaces of the first belt 1 and the third belt 3. As the pulley 14 rotates, the pulley 14 is integrally rotated in the direction of the arrow. In the figure, 34 and 35 are guide members for guiding the paper sheets.

In the above-described configuration, the length relationship between the above-mentioned respective transport paths is such that the length of the first transport path 13 (between B′D) is the second transport path 12
The length (between CDs) and the peripheral length from the inlet A to the outlet C in the rewinding direction of the second belt 2 wound around the pulley 15 are made substantially equal to each other, and the path stopping portion 6a to the blade The distance to the outer peripheral surface of the elastic blade 7a, which is freely deformable, of the vehicle 7 is shorter than the length in the feeding direction of the paper sheet to be handled, and the distance from the path stopping part 6a to the outer peripheral surface of the pulley 15 is the feed of the paper sheet to be handled. It is considered to be larger than the direction length. The belts are rotated from one driving source by frictional contact of the belts with each other and driven at the same speed.

Next, the operation of the above embodiment will be described.

The paper sheets to be processed, which are continuously conveyed through the carry-in path 10 at regular intervals, are identified on the front and back sides when they pass the installation position of the identification means 8, and to the solenoid 29 when they are identified as the cover sheet P. Is not energized, the movable guide piece 6b is placed at the position shown by the solid line in FIG. 1, and the cover sheets are attached to the first belt 1 and the second belt.
The elastic blade 7a of the impeller 7 contacts the lower surface of the paper sheet while moving between the belt 2 and the paper sheet (FIG. 3 (A)), and the paper sheet has the elastic blade 7a.
While a is being bent downward, it advances to enter between the first belt 1 and the movable guide piece 6b, and is sent along the lower surface of the first belt 1 in the forward area 11, while the lower surface of the paper sheet The elastic blade 7a that has been deflected is linearly restored every time it escapes from the lower surface of the paper sheet by the rotation of the impeller 7 and continues to rotate (FIG. 3 (B)).

When the cover sheet P further advances, the front end of the cover sheet P in the traveling direction is held between the first belt 1 and the fourth belt 4 and reaches the confluence point D through the first conveying path 13 and the guide member 3
It is delivered to the post-processing section by being delivered to the merging / conveying path between the carry-out belts 5 and 5 along the line 5.

On the other hand, when the identifying means 8 identifies the back paper sheet P'while it is being sent to the carry-in path 10, the signal causes the solenoid 29 to be excited, whereby the path stopping part 6a.
1 crosses the first belt (forward belt) 1 in the forward zone 11 as shown by the dashed line in FIG.

Similar to the cover sheet P, the back paper sheet P ₁ ′ traveling between the first belt 1 and the second belt 2 is an elastic blade that contacts the lower surface of the back paper sheet P ₁ ′ by the rotation of the impeller 7. While advancing 7a, it progresses and enters the outbound area 11 (FIG. 3 (C)).

Even if the rear end of the back paper sheet P ₁ ′ traveling in the outbound area 11 passes the second conveyor belt 2, the back paper sheet P ₁ ′ has the first belt 1 and the elastic blades 7 a bent. The elastic blade 7a, which was bent and conveyed immediately after that, was linearly restored by the rotation of the impeller 7 and the movement of the back paper sheets P ₁ ′, and the forward movement area 11
In cooperation with the first belt 1 located at the position, the front end of the back paper sheet P ₁ ′ is abutted against the path stop portion 6a at the stop position B ′ (FIG. 3 (D)), the back paper sheet P ₁ ′, Change from one-dot chain line state to two-dot chain line state, elastic blade 7a changes from one-dot chain line state to solid line state).

At that time, the linear elastic blades 7a of the impeller 7 strike the rear edge portion of the back paper sheet P ₁ ′ in the two-dot chain line state of FIG. 3 Put it against the belt 3 (Fig. 3 (E)).

At that time, the next place to be identified on the paper sheet is the identifier 8,8.
Has passed through, and the paper sheets are back paper sheets P ₂ ′.
If so, the path stopping portion 6a intersects with the first belt 1 in the outbound region 11 due to the solenoid 29 being excited, and the back sheet P
Tip _{2 'has} been advanced to the vicinity of the pulley 15.

On the other hand, the elastic blade 7a that hits the rear edge of the back paper sheet P ₁ ′ from above is driven by the paper surface of the back paper sheet P ₁ ′ deflated by the third belt 3 in the refeed area 25. Flirt, 3rd
And its bend elastic blade 7a sandwiched between backing paper sheet P ₁ is the belt 3 _'is conveyed forcibly, the paper sheet P _1' when the leading edge of the proceeds to the position of the pulley 15, the third belt Three
And the second belt 2 and are conveyed toward the confluence D (FIG. 3 (F)).

The following backing paper sheet P _{2 'is} at that point is in progress往送region 11 as shown in FIG. 3 (F), is then likewise reversing the feed, prior backing paper sheet P ₁ to' Carry-in route 10 between
The second transport path 12 is provided at the same interval as when the second transport path 12 was transported.
And is transported through the confluent transport path.

When the next paper sheet P ₂ ′ is a cover sheet, the movable guide piece 6b in FIG. 3 (E) is below the first belt 1, and passes through the forward transport area 11 and the first transport path 13. Even when reaching the confluence point D, as described above, the length of the first conveying path 13 is set to the length of the second conveying path 12 from the inlet portion A of the second belt 2 wound around the pulley 15 to the outlet portion in the returning direction. Since the sum of the peripheral lengths up to C is made approximately equal, the preceding back paper sheet P ₁ ′ has entered the merging / conveying path and is conveyed to the preceding back paper sheet P ′. It is transported through the confluent transport path while maintaining the interval during transport of the route.

In this way, when the cover sheets and the reversed back sheets are fed between the carry-out belts 5 and 5 of the merged conveyance path, the same distance as the conveyance interval in the carry-in path 10 is set for the preceding cover sheets. In this case, since it is sent through the merging / unloading path, the interval does not vary when reaching the post-processing section, and there is no inconvenience in processing.

The energization of the solenoid 29 is demagnetized, for example, by a timer after a predetermined time has elapsed, and the path stopping portion 6a and the movable guide portion 6b are returned to their original positions.

It should be noted that in the illustrated embodiment, the method of wrapping the belts constituting the respective conveying paths is not limited to the illustrated example, and the feeding direction and length of the paper sheets are dependent on the size and properties of the paper sheets to be handled. It goes without saying that the design can be changed as appropriate.

Further, the forward belt of the present invention is the carrying-in path 10, in the present embodiment.
Although it is the first belt that is commonly used for the forward transport area 11 and the first transport path 13, a dedicated belt for the forward transport area 11 may be provided, and the backward transport belt 3 for the backward transport area 25 may be the forward transport area 11 as well. You may use the exclusive belt only for the part facing.

The impeller 7 has a structure in which a body portion of a type fixed to the shaft 9 and elastic blades are provided. Particularly, in this embodiment, the small boss portion of the pulley 15 is shared by the body portion of the impeller 7, and the small diameter thereof is used. The pulley 1 is shown with the elastic blades 7a planted on the boss.
An impeller 7 composed of a body and elastic blades, which are separate from 5, may be used. Further, the body part may be shared by the shaft 9, and the impeller 7 in which the elastic blade 7a is planted around the shaft 7 may be used. Further, in the present embodiment, although the structure is deflected by the paper sheets, the carry-in path 10 facing the elastic blades 7a has a belt or a guide plate opposite to the entrance A of the outward feeding area 11, Regardless of whether or not the article exists at the entrance portion A of the carry-in path 10 and the forward path 11, the elastic blade is cut off by the belt or the guide plate, and the restoring force of the elastic blade to the linear shape when it is disengaged from the elastic blade You may use it for the urging force to the class.

Of course, the apparatus of this embodiment can be used with the right side up and the left side down in FIG. 1, or with the left side up and the right side down.

〔The invention's effect〕

As described above, according to the present invention, among the sheets fed at high speed and continuously, only those which need to be turned upside down are swiftly turned upside down, and are not turned upside down. Since it is merged with the separated paper sheets at the feeding interval before reversing, it is possible to reverse the front and back of the paper without reducing the processing speed in the conventional paper processing machine, It is reliable, and continuous reversal feeding is possible even when it is continuously conveyed at a considerably small interval, and it is particularly effective when applied to a bill processing machine that requires high-speed processing.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a paper sheet reversing device according to the present invention, FIG. 2 is a top view of the same, and FIGS. 3 (A) to 3 (F) are explanatory views showing the same operating state. The figure is a block diagram showing a conventional reversing device. 1 ... First belt (partially serving as a component of the carry-in path, the forward transport area, the gripping carrier, and the first transport path), 2 ... second
Belt (partially serves as each component of the carry-in path, entrance / exit forming rotator, and second transport path), 3rd belt (partially serves as the return belt and component of the second transport path), 4 ...
... 4th belt (partially gripping carrier, constituting each component of the 1st transport path), 6a ... Path stop part, 6b ...
… Movable guide piece, 7 …… impeller, 7a …… elastic blade,
11 ... Forwarding area, 25 ... Returning area, P, P ₁ ... Cover sheet, P ₁ ′, P ₂ ′ ... Backing sheet.

Claims (1)

[Claims] 1. An inlet portion A into which paper sheets before front and back alignment are fed, a forward feeding direction outlet portion B from which paper sheets are fed in the same direction as the paper sheet feeding direction, and a paper sheet feeding direction. Is a reversing unit having a return direction outlet portion C for sending the paper sheets in the reverse direction, and a carry-in path for feeding the paper sheets to the entrance portion A and having an identifying means for identifying the front and back sides of the paper sheets, A first conveying path for receiving and conveying the paper sheets sent out from the outgoing direction outlet section B; a second conveying path for receiving and conveying the paper sheets sent out from the backward direction outlet section C; A sheet reversing device that is provided subsequent to the second conveying path and that merges and conveys the sheets conveyed from each of the conveying paths, wherein the reversing section is an inlet section. A, the forward direction exit part B, and the backward direction exit part C are the vertices, and sides AB and B And equal two sides disposed to form a substantially isosceles triangular inversion space, the inlet portion A
Between the forward direction exit port B and the forward direction exit port B between the forward direction exit port B and the forward direction exit port B between the inlet port A and the forward direction exit port B; In between, the paper sheets are re-fed from the forward-direction outlet section B to the backward-direction outlet section C,
A return belt that is not connected to the forward belt, and is located between the inlet portion A and the outlet portion C in the return direction and is in contact with the forward belt and the backward belt so as to face the inlet portion A.
And a forward / backward forming rotary member that forms the backward feeding outlet C, and is in contact with the forward feeding belt at the forward feeding outlet B, and grips the forward end of the forward feeding direction of the paper sheet to move forward. The gripping conveying body that conveys the sheet to the forward direction outlet port B, which is provided immediately in front of the forward direction outlet port B and contacts the forward end of the sheet when the sheet advances to a position intersecting the belt surface of the forward sheet. A path stop piece that stops the carry-out in the sending direction and allows the paper sheets to go out when retreating from the advance position, and a paper sheet that is sent out by a forward belt when going into the reversing space. A movable guide piece that guides the sheet and allows the sheet to move from the forward belt side to the conveyor belt side when the sheet leaves the reversing space, and is provided at a side position in the conveying width direction of the entrance forming rotary body. And the trailing edge of the paper sheet stopped by the path stopping piece And an impeller having elastic blades on its peripheral surface for moving the sheet from the forward belt side to the backward belt side. The length of the first transport path is equal to the length of the second transport path and the inlet portion A.
A sheet reversing device, which is set so as to be approximately equal to the sum of the peripheral length of the entrance forming rotary member from the exit direction C to the returning direction.