JP3476967B2 - Inverter for paper sheets - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet reversing device for aligning paper sheets. 2. Description of the Related Art FIG. 2 is a schematic side view showing a conventional sheet reversing device. In the conventional sheet reversing device, the sheets discriminated by the discrimination unit 20 are conveyed through the common conveyance path 21, and the sheets discriminated from the front are switched by the blade 22 to switch the conveyance path. The non-reversing conveyance path 23 is conveyed. In addition, the paper sheets discriminated as being face-down are switched by the blade 22 so that the reversal pool 24
To the reversing pool section 2 by the guide roller 25.
The trailing end of the sheet fed into the sheet 4 is guided to the reversing conveyance path 26, and the reversing conveyance path 26 is conveyed. Non-reversing transport path 23
And the reversing conveyance path 26 merges at a junction 27, but the papers conveyed in the reversing conveyance path 26 are reversed in the conveyance direction in the reversal pool 24, so that the front and back are reversed, Sheets passing through 27 are front and back aligned. [0003] In the above-mentioned sheet reversing device, the sheet conveyed through the reversing conveyance path is subjected to a reversing process using a guide roller. The time gets longer. For this reason, assuming that the length of the reversing conveyance path and the length of the non-reversing conveyance path are the same, if the sheets sent to the sheet reversing device are in the order of back-facing sheets and front-facing sheets, A paper sheet may catch up with a preceding paper sheet at a confluence and be overlapped. Here, if the sheets overlap at the junction, the number of sheets that have passed through the sheet reversing device cannot be managed. Therefore, it is necessary to make the length of the non-reversing conveyance path longer than that of the reversing conveyance path.However, in order to lengthen the conveyance path length of the non-reversing conveyance path, the conveyance path length is set so as to bypass the non-reversing conveyance path. A skein must be provided, and there is a problem that the apparatus becomes large. In order to solve the problems described above SUMMARY OF THE INVENTION A paper sheet reversing apparatus according to the present invention comprises a common conveyance path for conveying the front and back differential papers sheets, the common conveyance path And a guide that guides the leading edge of paper sheets fed from <br/>
And an unloading guide located opposite the loading guide.
And carrying the carry-in guide on the side near the common carrying path.
A reversal pool section with a shape that widens the gap with the exit guide ,
A stopper provided at the end of the reversing pool so as to be openable and closable, a reversing conveyance path extending from a branch point between the common conveyance path and the reversing pool, and a plurality of flexible sheets protruding from the outer peripheral surface.
The common transport path and the reversal
A guide roller provided between the transport path and a non-reverse transport path extending beyond the stopper and joining the reverse transport path;
Paper sheets to be turned over sent to the reversing pool section
Of the paper sheet with the stopper, and the rear end side of the paper sheet
And the guide roller rotates to rotate the tongue piece forward.
The trailing edge of the paper sheet is scraped off, and the trailing edge of the paper sheet is moved forward.
It is characterized by being guided to the reversing conveyance path. According to the present invention having the above-described structure, when the conveyed paper sheets are discriminated to be face-down, the stopper is closed and the paper is fed into the reversal pool by this stopper. and stopper tip of the paper sheet, and the rear end of the paper sheet Gulf
Bend and rotate the guide roller to rotate the paper with the tongue.
The trailing edge of the leaf is scraped off and the trailing edge of the paper leaf is
It is guided to the reverse transport path and transported on the reverse transport path. If it is determined that the conveyed paper sheets are face up, the stopper is opened, and the paper sheets sent to the reversing pool section pass through the reversing pool section, and are not reversed. The transport path is transported. FIG. 1 is a schematic side view showing an embodiment of a paper sheet reversing apparatus according to the present invention. In the figure, reference numeral 1 denotes a discriminating unit, which is disposed in the middle of the transport path of the paper sheet 2 and determines the front and back of the paper sheet 2 being conveyed. Reference numeral 3 denotes a common conveyance path, and the common conveyance path 3 conveys the sheets that have been discriminated from the front and back by the discrimination unit 1. Reference numeral 4 denotes a reversing conveyance path for conveying the paper sheets (hereinafter, referred to as reversing paper sheets) determined to be turned back by the discriminating section 1. Reference numeral 5 denotes a non-reversing conveyance path through which the paper sheets (hereinafter, referred to as non-reversing paper sheets) determined to be facing up by the discriminating unit 1 are conveyed. Each of the common transport path 3, the reverse transport path 4, and the non-reverse transport path 5 has a structure in which a belt is hung on a roller. Are provided side by side. Here, the transport path length of the non-reverse transport path 5 is longer than the reverse transport path 4 so as to be equal to the transport processing time in the reverse transport path 4. Reference numeral 6 denotes a reversal pool provided between the branch point of the common transport path 3 and the reverse transport path 4 and the starting point of the non-reverse transport path 5. Reference numeral 7 denotes a guide roller provided at a branch point between the common transport path 3 and the reverse transport path 4.
Are arranged coaxially with a roller 3a provided at a branch point between the common transport path 3 and the reverse transport path 4 among the rollers and belts constituting the above. The guide roller 7 is provided with a plurality of tongue pieces 7a made of a flexible member having a length protruding from a transport surface formed by the belt 3b constituting the common transport path 3 and the reverse transport path 4. Have been. Reference numeral 8a denotes a carry-in guide for guiding the paper carried into the reversing pool section 6, 8b denotes a carry-out guide for guiding the paper carried out of the reverse pool 6, and carry-out guide 8b denotes a carry-in guide. 8a.
Here, the carry-in guide 8a has a large distance between the carry-out guide 8b on the branch point side of the common transport path 3 and the reverse transport path 4;
On the starting point side of the non-reversing conveyance path 5, the space is bent so that the distance between the non-reversing conveyance path 5 and the carry-out guide 8b is reduced. That is, on the starting point side of the non-reversing conveyance path 5,
The interval between the carry-in guide 8a and the carry-out guide 8b is constant,
The carry-in guide 8a and the carry-out guide 8b extend a portion where the distance is constant, and the carry-in guide 8a is bent from the middle so that the carry-out guide 8b extends along the carry-in direction of the paper sheet 2 sent from the common carrying path 3. The distance between the guide roller 7 and the tongue 7a of the guide roller 7 is increased by increasing the opening angle of the carry-in guide 8a near the branch point between the common transport path 3 and the reverse transport path 4. To avoid hitting. Although the carry-in guide 8a shown in FIG. 1 has a larger opening at the branch point by changing the angle in two stages, it may be formed as a curved surface. Reference numeral 9 denotes a stopper which can be opened and closed between the reversing pool section 6 and the starting point of the non-reversing conveyance path 5, and when the reversing sheet is carried in, it is in a closed position 9a shown by a solid line in FIG. When the non-inverted sheet is carried in, the sheet is stopped at the open position 9b indicated by the broken line in FIG. The non-inverted sheet carried into the container is passed through as it is. Reference numeral 10 denotes a confluence of the reversing conveyance path 4 and the non-reversing conveyance path 6, and the sheets conveyed on the reversing conveyance path 4 and the sheets conveyed on the non-reversing conveyance path 5 are connected to a merging guide 10a. The sheet is conveyed along the path and merges into one conveyance path, and the sheet with the front and back aligned is sent to a downstream processing unit (not shown) of the sheet front and back reversing device. Here, the stopper 9 is operated by an actuator such as a solenoid (not shown), and a control unit (not shown) drives the actuator in response to the discrimination result of the discrimination unit 1. Hereinafter, the operation of the sheet reversing device according to the present embodiment will be described. First, the paper sheet 2 is conveyed to the discriminating unit 1 by a conveying unit (not shown) of the paper sheet front / back reversing device. A control unit (not shown) determines the front and back of the paper sheet 2 from the output of the discrimination unit 1, and
Is transported to the reversal pool section 6 by the common transport path 3. When the control unit (not shown) determines that the paper sheet 2 passing through the discriminating unit 1 is facing up, it drives an actuator (not shown) to set the stopper 9 to the open position shown by the broken line in FIG. . The non-reversed sheet fed from the common transport path 3 to the reversing pool section 6 is pushed by the tongue 7a of the guide roller 7 when the trailing end passes through the common transport path 3. Here, the carry-in guide 8a and the carry-out guide 8b
Is narrow and constant on the starting point side of the non-reversing conveyance path 5,
The portion where the interval between the carry-in guide 8a and the carry-out guide 8b is constant extends, and the carry-in guide 8a is bent halfway so that the space between the carry-in guide 8b and the carry-out guide 8b approaches the branch point between the common transport path 3 and the reverse transport path 4. Since the sheet is widened, the non-reversed sheet carried into the reversing pool section 6 is guided by the carry-in guide 8a at the front end thereof and pressed against the carry-out guide 8b, so that the sheet is curved in the middle. . The rear end of the non-reversed sheet is pushed by the tongue 7a of the guide roller 7 as the guide roller 7 rotates in the direction of arrow A. At this time, as described above, the non-reversed sheet 2 is curved from the middle while the leading end side is guided by the carry-in guide 8a and pressed against the carry-out guide 8b. The non-reversing sheet is momentarily urged by the restoring force to return the non-reversing sheet to the non-reversing conveyance path 5, and is fed to the non-reversing conveyance path 5 by the well reversing conveyance path 5. Transported to When the control unit (not shown) determines that the paper sheet 2 passing through the discriminating unit 1 is facing backward, it drives an actuator (not shown) to set the stopper 9 to the closed position shown by the solid line in FIG. . The reversing sheet 2 ′ sent from the common conveyance path 3 to the reversing pool section 6 has its rear end pushed by the tongue 7 a of the guide roller 7, and its leading end abuts against the stopper 9. Here, the carry-in guide 8a and the carry-out guide 8b
Is narrow and constant on the starting point side of the non-reversing conveyance path 5,
The portion where the interval between the carry-in guide 8a and the carry-out guide 8b is constant extends, and the carry-in guide 8a is bent halfway so that the space between the carry-in guide 8b and the carry-out guide 8b approaches the branch point between the common transport path 3 and the reverse transport path 4. Since the sheet is widened, the reversing sheet 2 ′ carried into the reversing pool section 6 is guided by the carry-in guide 8 a at the leading end thereof and pressed against the carry-out guide 8 b, and becomes curved in the middle. Become. When the guide roller 7 rotates in the direction of arrow A, the rear end of the inverted sheet 2 'is scraped off by the tongue 7a of the guide roller 7 in the direction of the carry-out guide 8b.
At this time, as described above, the reversing sheet 2 ′ is curved from the middle in a state where the leading end side is guided by the carry-in guide 8 a and pressed against the carry-out guide 8 b, so that the curved state is The restoring force for returning the sheet to the original is strong, and the restoring force makes it easy to scrape the rear end of the inverted sheet 2 '. The reversing sheet 2 'whose trailing end has been scraped off is drawn into the reversing conveyance path 4 from the rear end side, whereby
The inverted paper sheet that has been turned upside down is turned upside down, and is conveyed to the junction 10 by the reversing conveyance path 4. In this way, the paper sheets passing through the merging section 10 are aligned front and back. In the sheet reversing device as described above, since the sheet conveyed through the reversing conveyance path 4 performs the reversal process using the guide roller 7, the conveyance time becomes long. For this reason,
If the length of the reverse transport path 4 and the length of the non-reverse transport path 5 are the same,
If the sheets sent to the sheet reversing device are in the order of back-facing sheets and front-facing sheets, the succeeding sheets catch up with the preceding sheets at the junction 10 and overlap. Therefore, it is necessary to make the length of the non-reversing conveyance path 5 longer than the length of the reversing conveyance path 4. Here, in the present embodiment, the non-reversing conveyance path 5 is provided at the tip of the reversing pool section 6 so that the non-reversing paper sheet passes through the reversing pool section 6, so that the length of the non-reversing conveyance path is shortened. it can. The shape of the carry-in guide 8a is such that the carry-in guide 8a and the carry-out guide 8b are located on the starting point side of the non-reversing conveyance path 5.
Is narrow and constant, and a portion where the distance is constant extends, and the carry-in guide 8a is bent from the middle so that the space between the carry-out guide 8b and the carry-out guide 8b becomes wider as approaching the branch point between the common transport path 3 and the reverse transport path 4. Therefore, the sheets are bent in the reversing pool section 6, and the non-reversing sheets are easily sent to the non-reversing conveyance path 5 by using the restoring force, and the reversing sheets are moved to the reversing conveyance path 4. It can be easily sent. As described above, according to the present invention, a non-reversing transport path for transporting face-up paper sheets is provided at the tip of the reversal pool section, and the face-up paper sheets are also placed in the reversal pool section. , The length of the non-reversing conveyance path can be shortened by using the reversing pool as a part of the non-reversing conveyance path, and the size of the entire sheet reversing apparatus can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view showing an embodiment of a paper sheet reversing device of the present invention. FIG. 2 is a schematic side view showing a conventional paper sheet reversing device. 3 common transport path 4 reverse transport path 5 non-reverse transport path 6 reverse pool section 7 guide roller 8a carry-in guide 8b carry-out guide 9 stopper 10 merge section

Claims (1)

(57) and the common transport path [Claims 1] you carry the front and back differential papers sheets, the leading end of the sheet fed from the common conveyance path guide
Carrying guide and a carrying guide
Outgoing guide, and the common guide
An inverting pool portion having a shape in which the interval between the unloading guide and the unloading guide increases on the side close to the road; a stopper provided at the end point of the inverting pool portion so as to be openable and closable; A reversing conveyance path extending from the branch point, and a tongue piece made of a plurality of flexible members protruding from the outer peripheral surface.
And provided between the common transport path and the reverse transport path.
A guide roller which, e Bei a non-inverting conveying path that merges with the reverse conveying path extends above the stopper, the previous sheet to be reversed which is fed into the inverting pool section
Stop the end with the stopper, and
Curved and the tongue piece rotates with the rotation of the guide roller.
Scrape off the trailing end of the paper sheet, and
A sheet reversing device for guiding sheets to a reversing conveyance path .