JPH0230983B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper sheet processing device for reversing the front and back sides of paper sheets such as banknotes.

Conventionally, as a method for turning paper sheets upside down, the paper sheets are ejected so that they are completely free, and the tip of the sheet is brought into contact with a stopper to stop it at a predetermined position. There is a method of vacuum suction and extraction from the rear end side.

However, in the case of thin and fragile paper sheets such as banknotes (folded or worn-out sheets are particularly prone to this tendency), when they are released into a free state to change the conveyance direction, the There is a problem in that the posture becomes extremely unstable, making it difficult to take out the product properly.

On the other hand, in banks, etc., banknote discriminating and counting devices are in practical use that sequentially take out banknotes stored in a supply unit one by one and distinguish and count them using a detection unit. It is important to arrange the front and back sides in one direction for later bundling and other purposes.

Therefore, since it is not possible to employ the above-mentioned conveyance direction converting means in conventional banknote discrimination and counting devices, the system shown in FIG. 1 is used.
That is, when the banknotes b... stored in the supply section a with both front and back sides mixed are taken in one by one by the take-in roller c and sent into the conveyance path d, and the banknotes b on the way to conveyance are distinguished and counted by the detector e. At the same time, judge whether it is front or back. Then, the banknotes b determined by the detector e to be transported face-up are transferred to the first stacking section g via the gate f.
In addition, the banknotes b determined by the detector e to be transported on the back side are stacked in the second stacking section i via the gate h. Note that j is a third stacking section provided at the end of the conveyance path d, which stacks rejected banknotes b that are not recognized as genuine banknotes by the detector e or are rejected due to dirt or the like.

According to such a conventional method, a first stacking section g for front stacking and a second stacking section i for back stacking are required, and post-processing such as taking out stacked banknotes needs to be performed at multiple locations. There are problems in that the work is complicated and the means for comparing the counts is complicated and troublesome.

The present invention has been made based on the above circumstances, and its purpose is to have a relatively simple structure, but to be able to reliably turn over even soft paper sheets such as banknotes being transported. The purpose of the present invention is to provide a paper sheet processing device that can handle paper sheets.

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 2 to 5. 1 in Fig. 2 is a supply unit that can accommodate a large number of banknotes P as paper sheets at once;
The supply unit 1 stores banknotes P of the same denomination (for example, 10,000 yen banknotes) in a mixed state. A portion of the take-in roller 2 protrudes into the supply section 1, and the lowest banknote P is in contact with the take-in roller 2. As the take-in roller 2 rotates, the lowest banknotes P in the supply section 1 are placed one by one horizontally and in the side direction into the take-in conveyance path 3 serving as a conveyance means, with the front or back side up. It is starting to be taken in. A detection unit 4 is disposed in the middle of the take-in conveyance path 3, and is configured to distinguish and count the banknotes P on the way to be conveyed and to detect whether the bills P are front or back. In addition, a direct conveyance path 5 for conveying banknotes P in the same posture and a reversing conveyance path 6 for conveying banknotes P while inverting them are provided in parallel downstream of the taking-in conveyance path 3. Conveyance path 3
A sorting gate 7 is disposed at the terminal end of the paper bank for selectively sorting banknotes P to the direct conveyance path 5 or the reverse conveyance path 6 based on the detection result by the detector 4.

In addition, the above-mentioned direct conveyance path 5 and reverse conveyance path 6
A stacking section 9 for genuine banknotes is disposed near the terminal end of the merging transport section 8, and a stacking section 9 for genuine banknotes is disposed at the subsequent stage via a transport path 10 for storing rejected banknotes. A stacking section 11 is arranged.
A sorting gate 12 is arranged near the end of the merging conveyance section 8 to selectively distribute banknotes P to the stacking section 9 or the conveyance path 10.

Further, the direct conveyance path 5 includes a first conveyor belt 13 and second and third conveyor belts 14 and 15, which are stretched so as to be partially in contact with the first conveyor belt 13. It is formed by a surface portion, a mutually opposing portion between the guide plate 16 and the lower guide surface of the distribution gate 7, and the like.

On the other hand, the reversing conveyance path 6 includes a mutually opposing portion of the fourth conveyor belt 17 and the upper guide surface of the sorting gate 7, an upper surface of the horizontal portion of the fifth conveyor belt 18, a side surface of the rising portion of the third conveyor belt 15, Fifth conveyor belt 18
and the third conveyor belt 15, the inclined lower surface of the third conveyor belt 15, and the mutually opposite portions of the first conveyor belt 13 and the third conveyor belt 15. There is.

Note that the mutually opposing portion of the first conveyor belt 13 and the third conveyor belt 15 forms a merge conveyance section 8 where the direct conveyance path 5 and the reverse conveyance path 6 merge.

Further, as shown in detail in FIG. 3, the middle part of the reversing conveyance path, that is, the horizontal part 18a of the fifth conveyance belt 18 and the rising part 15a of the third conveyance belt 15
An impeller 19 and a separator 20 are disposed in a corner portion formed by the impeller 19 and a separator 20 nested with the impeller 19, and constitutes a conveyance direction converting section 21 for conveying banknotes P from the rear end side. ing.

Further, the impeller 19 has blades 19a whose tips are connected to the horizontal portion 18a of the conveyor belt 18 and the conveyor belt 1.
The outer rotation speed of the impeller 19 is set to be slower than the conveyance speed of the conveyor belt 18.

Therefore, the horizontal portion 18 of the fifth conveyor belt 18
As shown in FIG.
It is pushed in to the base of 9a. Next, as shown in FIG. 4B, the banknote P is conveyed as the impeller 19 rotates so that its leading end gradually separates from the horizontal part 18a of the conveyor belt 18, and its leading end hits the separator 20. As a result, the rear end of the banknote P is pushed out from between the blades 19a and 19a, and at the same time, as shown in FIG.
A third conveyor belt 15 as a conveyance means
is moved toward the rising portion 15a side. Then, the banknote P is in a state along the rising portion 15a of the conveyor belt 15, which is always running downward, and is pulled out from between the blades 19a, 19a of the impeller 19, and at the same time, the banknote P is caused by friction with the rising portion 15a of the conveyor belt 15. The force causes the paper to be taken out from the rear end (lower end) and the conveyance direction is changed. At this time, the rising portion 15a of the conveyor belt 15
are nested with the tips of the blades 19a of the impeller 19, so that the banknote P is pressed against the belt surface by the blades 19a, and a sufficient frictional force is generated between the banknote P and the conveyor belt 15. Conveyor belt 1
5, the take-out and conveyance is reliably carried out.

Note that 22 shown in FIG. 2 is a pair of conveyance rollers arranged between the supply section 1 and the detector 4 to constitute the starting end of the intake conveyance path 3;
This is a conveyance roller arranged in rolling contact with the fourth conveyance belt 17 to form the terminal end of the fourth conveyance belt 17. Also, 24
is a gate provided near the end of the conveyance path 10, and is adapted to guide the rejected banknotes P to the stacking section 11.

Next, the operation of the above embodiment will be explained with reference to FIG. The banknotes P taken in one by one from the supply unit 1 via the take-in roller 2 are detected by the detector 4 as they are conveyed through the take-in conveyance path 3 to determine whether the banknotes P are genuine banknotes or to be rejected. determining and counting whether
It is determined whether the conveyance is on the front side or on the back side. Then, when the bill P blocks a conveyance sensor (not shown) disposed on the take-in conveyance path 3, the sorting gate 7 is switched in a predetermined direction based on the result of the front/back discrimination by the detector 4. That is, when it is desired to stack banknotes P with the front side up in the stacking section 9, the banknotes P that have been transported on the front side are transferred to the direct conveyance path 5, and the banknotes P that have been conveyed on the back side are transferred to the reversal conveyance path 6. Sort it out. Then, the banknotes P that have been conveyed on the front side remain as they are with the front side up, and the banknotes P that has been conveyed on the back side are placed in the impeller 1 as described above based on FIG. 4 A, B, and C.
By converting the conveyance direction in a conveyance direction converting section 21 having a conveyance direction converting section 9, the conveyance direction is reversed to front conveyance, and each sheet passes through the merging conveyance section 8. Among the banknotes P... that have passed through the combined conveyance unit 8 in a state of face-up conveyance, those determined to be genuine banknotes are stored in the genuine banknote stacking unit 9, and
Those determined to be rejected banknotes are sorted into the conveyance path 10 via the sorting gate 12, and are stacked in the stacking units 9 and 11, respectively, with their surfaces facing up.

Note that a counting sensor (not shown) is arranged at the entrance of each stacking section 9, 11 to count the number of stacked banknotes P... and compare the counting results with the counting result from the detector 4. .

On the other hand, banknotes P fed into the reversing conveyance path 6
When the bill P is reversed, the trailing edge of the bill P becomes the leading edge of the next conveyance, which causes a time delay. The length of the direct conveyance path 5 is increased by that amount to prevent jamming and counting failures due to the narrowing interval. That is, as shown in FIG. 5, the time for passing through the direct conveyance path 5 (t ₃ ) and the time for passing through the reverse conveyance path 6 (t ₁ + t ₂ ) are equal (t ₃ = t ₁ + t ₂ ). By setting this, the conveyance interval is made to be the same as that before being sorted by the sorting gate 7.

In addition, in the above-mentioned example, a case was explained in which the device is adopted for handling banknotes of the same denomination, but even if banknotes of multiple denominations are processed simultaneously, the number of stacking units is increased by the number of denominations, and the classification is not performed. Counting and processing to align the front and back sides can be easily carried out. Furthermore, the present invention may be applied to a device that detects front and back sides and reverses them in a device that discriminates whether it is good or bad, rather than distinguishing between denominations and authenticity.
Furthermore, it is not limited to devices that handle banknotes, but may be used in devices that handle slips and forms, for example, and in short, it can be used in any device that needs to flip the front and back sides of paper sheets being conveyed. It's okay.

In addition, it goes without saying that the present invention can be modified in various ways without departing from the gist of the invention.

As explained above, according to the present invention, the detection means detects whether the paper sheet being transported is facing forward or backward, and the paper sheet having one orientation is directly transported through the transport path. At the same time as conveying, after reversing the front and back sides of the paper sheets that have the other direction, the paper sheets can be merged into the above-mentioned conveyance path with the trailing edge side as the leading edge, and the front and back sides of the paper sheets with both front and back sides can be turned in one direction. You can get it in stock. This eliminates the need to distinguish the stacking section into one for front stacking and one for back stacking as in the conventional case, and post-processing becomes extremely easy.

Further, the means for reversing the front and back sides of paper sheets having the other direction and merging them into the conveyance path receives between the blades the paper sheets having the other direction among the paper sheets detected by the detection means and rotates them. An impeller that flips the front and back sides of the impeller, a separator that extracts the paper sheets that have been turned inside out by the impeller from between the blades, and a paper sheet that is extracted from between the blades of the impeller by the separator. Since the present invention is equipped with a carrying-out means for carrying out paper sheets with the rear end side as the leading edge and merging them with the above-mentioned conveyance path, even paper sheets such as banknotes that are soft and creased can be reliably reversed and merged. It has the effect of being able to do this.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of a conventional bill discriminating and counting device, Fig. 2 is a schematic diagram of a bill discriminating and counting device adopting an embodiment of the present invention, and Fig. 3 is a main part of the conveyance direction conversion. Schematic configuration diagram of the section, Figure 4 A, B,
FIG. 5 is an explanatory diagram showing the relationship between the transit time between the direct conveyance path and the reverse conveyance path. P...Paper sheets (banknotes), 3...Take-in conveyance path (conveyance means), 6...Reverse conveyance path, 15...Third conveyance belt (export means), 19...impeller, 19a
... Feather, 20 ... Separated body.

Claims (1)

[Scope of Claims] 1. A detection means for detecting whether the paper sheet being conveyed is facing forward or backward; a conveyance path for conveying; an impeller that receives between blades paper sheets having the other orientation among the paper sheets detected by the detection means and reverses them as they rotate; a separating body that extracts the paper sheets that have been reversed from between the blades of the impeller, and a conveyor that carries out the paper sheets that have been extracted from between the blades of the impeller with the rear end side as the leading edge and joins the above-mentioned conveyance path. A paper sheet processing device comprising: means.