JPS61211267A - Sheet transport mechanism - Google Patents

Abstract

PURPOSE:To have sure identification as well as prevent such troubles as errone ous suction, jamming, etc. by installing a tension roller to pinch the center of sheets with a transport belt, and by installing a plurality of correction rollers on the transporting direction side of said tension roller in an arrangement sym metrical about the center line and in the form of a circular arc. CONSTITUTION:Each banknote 2 fed while pinched by a transport belt 1 and a belt 13 intrudes between a tension roller 7 and said belt 1 in such a condition as given a habit of folding, and then between the belt 1 and correction rollers 9, 10 and a center restriction roller 11. Because these correction rollers 9, 10 are arranged with an opening angle theta and theta, respectively, a sideways feeding force with K1tantheta1, K2tantheta2 is applied to each banknote 2 with such folding habit by the rollers 9, 10 with respect to the feed amount P of belt 1. This feeding force corrects the folding habit as the banknote 2 goes farther from the abovementioned roller 7, and the banknote 2 is set between the belts 1 and 18 in tensed condition to be then transported in the direction as shown by arrow. This correction of folding habit provides sure identification of banknote about its sort and pattern through accurate sensing of its width.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a conveyance mechanism for paper sheets, and particularly to a conveyance mechanism that can correct folds, wrinkles, etc. of paper sheets.

[Conventional technology]

Automatic cash transaction equipment @ (AT) used in banks and other financial institutions.
M) Banknote processing devices that handle banknotes, such as automatic cash dispensers (CDs) and banknote sorting machines, are provided with a transport mechanism that transports paper sheets. The types of paper transported are in a wide variety of conditions, ranging from government tickets that have never been used to used circulation tickets.

Conventionally, such banknotes are conveyed by being clamped between a set of belts wound around pulleys, and are separated and counted one by one in a separating and counting section, classified in a discrimination section, or stacked in a stacking section. The items are collected and stored in the storage section.

Furthermore, at the time of payment, the sensor inspects the length of the short side of the banknote to identify whether the banknote is a 10,000 yen bill, a 5,000 yen bill, or a 1,000 yen bill.

[Problem that the invention seeks to solve]

Here, one unused banknote 19 A banknote that does not have any tendency to bend or the like will not cause a processing failure of the banknote processing device, however, among the banknotes that are actually processed,
The presence of distributed notes that have a tendency to bend in quarters, a tendency to bend in half, or wrinkles is a cause of processing failures in banknote processing apparatuses.

In other words, the conventional example described above does not have a mechanism for correcting wrinkles in banknotes, so if a banknote with wrinkles etc. enters the banknote processing device, the following processing problems will occur. There may be problems such as failure of suction in the separation/counting section, misrecognition in the discrimination section, skewed movement, jamming, or bending in the traveling section, and accumulation of broken parts or tears in the collecting section or storage section. There are problems that greatly increase equipment failure. In addition, recently reprinted banknotes (10,000 yen, 5,000 yen, and 1,000 yen notes) have the same short side length, so
It has become necessary to recognize the denomination by inspecting the length of the long side with a sensor. However, the conventional example described above does not have a mechanism for correcting wrinkles, etc. of banknotes, so when a banknote with wrinkles etc. enters the banknote processing device, the length of the long side of the banknote Errors occur, making it impossible to perform accurate inspections, and causing problems such as frequent rejections and cash troubles due to erroneous recognition.

The present invention has been made in order to solve the above problem, and its purpose is to improve the processing reliability and functionality of banknote processing machines, etc. by providing a mechanism for correcting wrinkles, etc. of paper sheets. The goal is to improve.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention comprises one or more conveyor belts provided corresponding to the width of paper sheets, a tension roller that pinches the center of the paper sheet with the conveyor belt, and The present invention with the above characteristics featuring the above characteristics, which features a multiple orthodontic roller that is symmetrical to the paper leaves moving center line on the paper leaves transport direction of the tension roller. First, a banknote with a tendency to bend or the like is conveyed between a conveyor belt and a tension roller, and then straightly conveyed between a conveyor belt and a correction roller. At this time, while the paper sheets are being pinched and transported between the conveyor belt and the tension roller, the paper sheets are stretched and corrected by the correction roller in a direction perpendicular to the conveyance direction.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1, 2, and 3.

FIG. 1 is a plan view showing an embodiment of the paper sheet conveyance mechanism according to the present invention, FIG. 2 is a side view of FIG. 1, and FIG. It is a figure for explaining correction.

In FIG. 1, reference numeral 1 denotes a conveyor belt, which has a width corresponding to the longitudinal width of paper sheets (hereinafter referred to as banknotes) 2, that is, approximately the same width. Reference numeral 3.4 denotes a shaft on which a driving pulley 5 or a driven pulley 6 is attached, and around which the conveyor belt 1 is wound. Reference numeral 7 denotes a tension roller whose outer periphery is coated with friction rubber and is disposed facing the center of the conveyor belt 1, and the banknote 2 is conveyed while being pinched by the conveyor belt 1. The tension roller 7 is rotatably supported by an 8-enlarged tension shaft. Reference numerals 9 and 10 designate a plurality of correction rollers, which are disposed symmetrically with respect to the paper sheet movement center line on the sheet conveying direction side of the tension roller 7 in an arcuate shape radially, and have a friction coefficient μ on the outer periphery.
A central regulating roller 011 covering the friction member m is disposed between the correction rows 29 on the center line of sheet movement, and its outer periphery is coated with a friction member having a high friction coefficient μm. However, the maximum value is μm.

Here, the tension roller L correction Cl-59,1
0 and the central regulating roller 11 contact the conveying roller 21 and rotate according to its rotational movement. Further, the straightening rollers 9 and 10 are arranged at opening angles θl and θ2, respectively, with respect to the center line of paper sheet movement. Reference numeral 012 denotes a straightening shaft, which is formed into an arc shape or a polygonal arc shape with an arbitrary curvature. The correction roller 29.degree. 1G and the central regulating roller 11 are rotatably supported so as not to move in the axial direction. Reference numeral 13 denotes a belt, which is disposed behind the tension roller 7 in the direction in which the banknotes 2 are conveyed. 14
．． 15 is the clamp shaft, each boo! 716.17 is attached and the belt 13 is rotatably wound. Reference numeral 18 denotes a belt, which is disposed in front of the correction rollers 9, 1G, that is, on the paper sheet conveying direction side, and includes pulleys 20, 2 which are dammed on the shaft 19.
1.22 rotatably wound. Reference numerals 23 and 24 denote rollers, which are rotatably mounted on roller shafts 25 and 26, respectively, and are arranged opposite to the tension roller T and the central regulating roller 11 with the conveyor belt 1 interposed therebetween. This prevents the conveyor belt 1 from escaping due to

Note that the belts 13, 18 and rollers 23, 24 rotate in contact with the conveyor belt 1.

Next, the operation of the above configuration will be explained. First, conveyor belt 1
The banknote 2 that has been pinched and sent between the conveyor belt 1 and the belt 13 enters between the conveyor belt 1 and the tension roller 7 in a bent state, etc., and is further transferred between the conveyor belt 1 and the correction rollers 9, 1.
0 and the central regulation row 211. The banknote 2 is conveyed straight in the direction of the arrow in FIG. 1 by the tension roller T, which provides the main conveying force, and the central regulating roller 11.

At this time, the banknotes 2 that have a tendency to bend are removed by the correction roller 9.
, 10 in a direction perpendicular to the conveying direction, the bent tabs are straightened out, and the tape is stretched in a tensioned state, and then sent in that state toward the belt 18.

That is, banknotes 2 with folds etc.
0 is the opening angle θl shown in FIG.

Since they are arranged at θ2, the correction rollers 9 and 10 each have a fiK1tan for the feed amount P of the conveyor belt 1.
θl * K2 tan θ2 force is applied in the width direction. Due to the feeding force, as the paper *2' moves away from the tension roller T, the folds, etc. of the banknote 2 are straightened, and in the tensioned state, the belt 1 and the belt 18 and is conveyed in the direction of the arrow in FIG.

Here, the stretching force due to the straightening row 29.10 VC is
Since the banknotes 2 act in the left-right direction with respect to the center of movement of -, it is thought that the banknotes 2 are likely to be skewed, but this does not occur in this embodiment. This is because the bill 2 is strongly pinched and conveyed by the conveyor belt 1, the tension roller T, and the central regulation roller 11, and the friction coefficient μm of the central regulation roller 211 is changed to the friction coefficient μ0 of the correction roller 9.10. Because of the large size, it is possible to transport the banknotes in the direction of the arrow in Figure 1 while maintaining the state of the banknotes 2 transported by the belt 13.The number of the transport belts 1 and bells) 13 and 18 described above may vary depending on the present embodiment. It is not limited to the number shown. In addition, in this embodiment, one correction shaft 12 is used to control the correction rollers 9 and 10.
, and the central regulating roller 11't-, but they may be supported separately by an 11-shaped M or the like.

〔Effect of the invention〕

As described above, according to the paper sheet conveyance mechanism according to the present invention, one or more conveyor belts are provided corresponding to the length of the paper sheet, and the entire center of the paper sheet is sandwiched between the conveyor belt and the conveyor belt. The conveyor belt and tension roller are equipped with a tension roller attached to the tension roller, and a number of correction rollers arranged symmetrically in an arc with respect to the paper sheet movement center line on the side of the tension roller in the paper transport direction. While the paper sheets are being pinched and conveyed by the rollers, the paper sheets are stretched by the straightening rollers in a direction perpendicular to the direction of conveyance, so the following effects are achieved.

In other words, in order to straighten paper sheets that have folds, etc., through a straightening roller and correct any curls, it is incorrect to check the width of the paper sheets and to make pattern fibers that recognize the paper sheets. This is especially effective when placed in front of the recognition unit, that is, the sensor, and also has the effect of eliminating processing problems such as poor suction and jamming in the banknote processing device.

Further, by applying this correction roller, there is an effect that paper sheets can be width-aligned in any direction or can be prevented from being skewed.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the paper sheet conveyance mechanism according to the present invention, FIG. 2 is a side view of FIG. 1, and FIG. It is a figure explaining correction. 1... Conveyance heald 2... M bill 7... Tension roller 9, 10... Correction roller 11... Central regulation roller

Claims (1)

[Scope of Claims] 1. In a paper sheet transport mechanism that transports paper sheets by sandwiching them between belts, one or more transport belts are provided corresponding to the width of the paper sheets, and the paper sheets are A tension roller that pinches the center of the sheet with the conveyor belt, and a plurality of correction rollers disposed symmetrically in an arc shape with respect to the center line of sheet movement on the side of the tension roller in the sheet conveyance direction. A paper sheet conveyance mechanism characterized by: