JPH0891678A - Paper sheet sorting method and device - Google Patents

Abstract

PURPOSE: To sort paper sheets on a continuously shifting conveyance path without retaining the paper sheets. CONSTITUTION: The shifting speed of a single-piece paper sheet is temporarily increased on a conveyance path constituted of multiple conveyance belts 20 receiving the single-piece paper sheets 13 continuously discharged from a paper sheet cutting device 1 and continuously shifting single-piece paper sheets, and the interval between two single-piece paper sheets reaching the conveyance belts 20 before and after the speed change is set wider than the interval between the other single-piece paper sheets 13 for sorting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet sorting method and apparatus for sorting a desired number of sheets while transporting the single sheet, for example, a single sheet continuously discharged from a continuous sheet cutting device. It receives and sorts the single-piece sheets by a desired number while continuously transferring them, and is provided on the conveying path to the stacker device or incorporated in the stacker device.

[0002]

2. Description of the Related Art In the conventional sorting processing of a single piece of paper, a slip sheet is inserted at a sorting position, or a sheet stacking table of a stacker device is moved in the sheet width direction to sort the sheets in the sheet width direction. (For example, Japanese Patent Publication No. 3-38991 and Japanese Patent Publication No. 4-36993) were common.

[0003]

Therefore, in the conventional sheet sorting process, it is difficult to perform the sheet transport operation unless the sheet transport operation is temporarily stopped according to the former case, and according to the latter case, a stacker apparatus or the like is required. There is an inconvenience that it cannot be performed unless it is a portion where the sheet is retained, and it cannot be performed on the way of the sheet conveyance path. SUMMARY OF THE INVENTION It is an object of the present invention to provide a sheet sorting method and apparatus that eliminates such inconvenience.

[0004]

SUMMARY OF THE INVENTION A sheet sorting method according to the present invention receives a continuously ejected single-sided sheet and temporarily suspends the sheet transfer speed on a transfer path for continuously transferring the single-sided sheet. The distance between the two single-piece sheets received before and after this speed change is made wider than the distance between the other single-piece sheets to divide the sheet. Then, the change of the sheet transfer speed can be performed by the speed change mechanism connected to the sheet transfer mechanism for continuously transferring the single-piece sheet forming the transfer path.

Further, the sheet sorting apparatus of the present invention is provided with a sheet transfer mechanism for receiving continuously ejected single-sided sheets and continuously transferring the single-sided sheets, and a sheet transfer mechanism disposed before the sheet transfer mechanism. A sensor for detecting a sorting mark provided on a single-sided sheet, a fast-forward mechanism for temporarily increasing the transfer speed of the sheet transport mechanism, and a single-sided sheet provided with a sorting mark in response to a sorting mark detection signal from the sensor are provided. A control unit for operating the fast-forwarding mechanism is provided immediately before or immediately after reaching the paper transport mechanism. Further, it is preferable that the fast-forwarding mechanism is composed of a speed change mechanism connected to the sheet transporting mechanism.

In place of the above-mentioned sensor, a sensor for detecting a single-sided sheet is provided, and in place of the above-mentioned control unit, the detection signal of the sensor is received to count the number of the single-sided sheets. When the predetermined number of sheets set in advance is reached, immediately after the last single-piece sheet to be sorted reaches the sheet transport mechanism, or immediately before the first single-sheet sheet to be sorted next reaches the sheet transport mechanism, the fast-forward mechanism. It is also possible to provide a control unit for operating the.

[0007]

The single-piece sheet reaches the conveying path after the sheet transfer speed is temporarily increased on the conveying path for continuously transferring the single-piece sheet in response to the continuously discharged single-piece sheet. The interval between the single-piece sheet immediately before and the single-piece sheet is wider than the interval between the other single-piece sheets, and the separation processing can be performed depending on the width of the single-piece sheet.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is arranged on a conveying path from a sheet cutting device to a stacker device will be described in detail below with reference to the accompanying drawings. Here, FIG. 1 is a schematic side view showing a sheet cutting device and a sheet sorting device incorporated in a stacker device, FIG. 2 is a schematic plan view showing a continuous sheet to be cut into single-piece sheets, and FIG. 3 is a sheet diagram. FIG. 4 is a schematic perspective view showing a part of the sorting device, and FIG. 4 is a schematic front view showing a transmission mechanism.

First, a sheet cutting device and a stacker device incorporating a sheet sorting device, and continuous sheets to be cut into single-piece sheets will be described with reference to FIGS. 1 and 2. The sheet cutting device 1 includes a placing table 4 for placing the continuous sheet 3 folded in zigzag at the perforation / cutting perforations 2 and a guide plate 5 for guiding the continuous sheet 3 pulled out from the placing table 4. Is equipped with. Following the guide plate 5, there is provided a tractor 7 having a pin (not shown) for engaging the transfer hole 6 of the continuous paper 3, and the marginal portion 8 of the continuous paper 3 is cut at the end of the tractor 7 in the transfer direction. A tractor slitter 9 for removing is provided.

After the tractor slitter 9, a pair of upper and lower low speed rollers 10a and 10b and the low speed roller 10 are provided.
A pair of upper and lower high speed rollers 11a and 11b, which rotate at a higher speed than a and 10b, are provided.
Continuous paper 3 due to the difference in the transfer speed of 0b, 11a, 11b
The blade 12 is brought into contact with the folding / cutting perforation 2 so that the continuous paper 3 is cut into the single-piece paper 13. On the side of the high-speed rollers 11a, 11b near the blade 12, a light-reflecting sensor 15 for detecting a sorting mark 14 provided in advance on a predetermined single-piece sheet 13a is provided. The illustrated sensor 15a is a light receiving element and is used as a pair of sensors together with the sensor 15 replaced with a light emitting element when detecting the leading edge of the sheet to be cut, and is not used in this embodiment. Is. The drive source of the sheet cutting apparatus 1 is a drive motor 25, and the drive motor 25 includes a tractor 7, rollers 10a, 10b, 11a,
11b are connected. Further, the division mark detection signal of the sensor 15 is configured to be sent to the control unit 26.

As shown in FIG. 1, after the above-described sheet cutting device 1, a sheet sorting device 16 for sorting the desired single sheet 13 into a desired number of sheets and a stacker device 17 for stacking the sorted single sheet 13 are provided. ing. The stacker device 17 is located below the paper sorting device 16 and has a plurality of conveyor belts 18 arranged side by side that intermittently circulate in the clockwise direction in FIG. Two pairs of locking rods 19a and 19b are provided upright with a spacing slightly wider than the depth of 13. The interval between the pair of locking rods 19a and 19b is adjustable so as to match the depth of the single-piece sheet 13 to be sorted. And, each of the locking rods 19a, 19b
Is always moved so as to correspond to the same position due to the intermittent circulating movement of the conveyor belt 18. The drive source of the stacker device 17 is also the drive motor 25, which is connected via the clutch mechanism 27, while the clutch mechanism 27 is configured to be operated and controlled by a control signal from the control unit 26, and the clutch mechanism 27 is connected. The conveyor belt 18 circulates only during the operation.

Next, the sheet sorting device 16 will be described with reference to FIGS. The sheet sorting device 16 receives the single-sided sheets 13 continuously discharged from the sheet cutting device 1 and similarly circulates continuously in a clockwise direction in FIG. 1, which is a sheet transfer mechanism that is a transfer path for continuously transferring. A plurality of moving conveyor belts 20 arranged side by side, and these conveyor belts 20
Two rider disks 21 are provided so as to correspond to two of them. These rider discs 21 are rotatably attached to a fixed arm 23 fixed to a fixed bar 22 which is horizontally supported by a pair of support legs (not shown) fixed to a machine frame (not shown). There is. Further, a light reflection type sensor 40 for detecting the sorting mark 14 of the single piece sheet 13a is provided on the end side of the sheet sorting device 16. The drive source of the sheet sorting device 16 is also the drive motor 25, and the drive shaft 24 is the transmission mechanism 2.
8 is connected to the drive motor 25 via
The speed change mechanism 28 is configured to be operated and controlled by a control signal from the controller 26.

Next, the structure of the speed change mechanism 28 will be described with reference to FIG. A gear 30 is fixed to a rotary shaft 29 connected to the output shaft of the drive motor 25, the gear 30 meshes with a gear 32 fixed to the rotary shaft 31, and the gear 32 further connects a one-way clutch 33 to the drive shaft 24. It meshes with the gear 34 attached via the. Also, the rotating shaft 31
A gear 36 is attached to the gear via an electromagnetic clutch 35, and the gear 36 meshes with a gear 37 fixed to the drive shaft 24. The gears 30, 32 and 34 have the same number of teeth, and the gear 36 has the same number of teeth.
The number of teeth of the gear 37 is smaller than the number of teeth of the gears 2, 32 and 34, while the number of teeth of the gear 37 is smaller than that of the gears 30, 32 and 34. The electromagnetic clutch 35 is energized for a predetermined time by an operation signal from the control unit 26.

Therefore, when the electromagnetic clutch 35 is not excited, the rotational force of the rotary shaft 29 by the drive motor 25 is transmitted through the gears 30, 32 and 34 to the drive shaft 24.
The rotation speed of the drive shaft 24 becomes the same as that of the rotation shaft 29. On the other hand, when the electromagnetic clutch 35 is excited, the rotational force of the rotary shaft 29 by the drive motor 25 is transmitted to the rotary shaft 31 via the gears 30 and 32, and then the gears 36 and 37 are driven. It is transmitted to the drive shaft 24 via. Therefore, in this case, the rotation speed of the drive shaft 24 becomes faster than that of the rotation shaft 29. At this time, the gears 32, 3
4 is in a meshed state, the gear 34 and the drive shaft 24
Rotate in the same direction, so that the one-way clutch 33 does not interfere with the rotation of the drive shaft 24 faster than the rotation speed of the gear 34.

Next, a paper sorting operation using the above paper sorting device 16 will be described. As shown in FIG. 1, the continuous paper 3 is folded and zigzag-folded by the folding and cutting perforations 2 and placed on the placing table 4 of the sheet cutting apparatus 1.
Is pulled out from the mounting table 4 and guided by the guide plate 5, and its transfer hole 6 is engaged with a pin (not shown) of the tractor 7. The continuous paper 3 is transferred in a predetermined direction by driving the tractor 7, and the tractor slitter 9 provided at the end of the tractor 7 in the transfer direction cuts and removes the marginal portion 8 of the continuous paper 3. Further, the transported continuous paper 3 from which the marginal portion 8 has been cut and removed is sent to a pair of upper and lower low-speed rollers 10a and 10b, and further, a pair of upper and lower high-speed rollers 11a and 11b, like the pair of upper and lower low-speed rollers 10a and 10b. Tension is applied due to the difference in transfer speed between the sheet and the sheet, and the blade 12 comes into contact with the perforation / cutting perforation 2 and is cut into the single-piece sheet 13. The single-piece paper 13 is continuously fed to the paper sorting device 16, is pressed and guided by the rider disk 21, and is continuously transferred in a predetermined direction by the conveyor belt 20.

The single-piece sheet 13 has a constant transfer speed of the tractor 7 and the cutting operation by the rollers 10a, 10b, 11a, 11b is also performed at a constant timing, so that the single-sheet sheet 13 is continuously placed on the conveyor belt 20 at regular intervals. Is supplied in a regular manner. In this case, the sensor 15 is the sorting mark 1 of the single-sided paper 13a.
When 4 is detected and the sorting mark detection signal is sent to the control unit 26, an operation signal is issued from the control unit 26 to the speed change mechanism 28 immediately after the cut single piece paper 13a reaches the conveyor belt 20. , The electromagnetic clutch 3 of the speed change mechanism 28
5 is excited, and the rotation speed of the drive shaft 24 increases for a predetermined time. As a result, the moving speed of the conveyor belt 20 is increased, and the single-sheet paper 13a sent to the conveyor belt 20 is moved.
The distance between the single piece of paper 13 and the other single piece of paper 13 is
It is wider than the distance between them. In this manner, the single-piece sheets 13 are sorted by being transported in a state where the intervals are wide between the single-piece sheets 13a provided with the sorting marks 14.

The separated single-piece sheets 13 move with the movement of the conveyor belt 20, and the respective locking rods 19 on the conveyor belt 18 in which the stacker device 17 is stopped sequentially.
It falls between a and 19b and is piled up. Here, when the sensor 40 detects the sorting mark 14 of the single-sided sheet 13a, a detection signal is sent to the control unit 26, and immediately after the single-sided sheet 13a drops on the conveyor belt 18, the control unit 26 causes the clutch mechanism to move. 28, an operation signal is issued, the clutch mechanism 28 is connected for a predetermined time, the conveyor belt 18 is driven for a predetermined distance, and the grouped single-sided sheets 13 are sorted into a bucket or the like (not shown). It is stored.

The present invention is not limited to the above-described embodiment. For example, the sorting process of the single-sided sheet 13 is performed so that the single-sided sheet 13a provided with the sorting mark 14 is the first sheet. When the sorting mark 14 is detected by the sensor 15, the control unit 26 sends an operation signal to the speed change mechanism 28 immediately before the single sheet 13a reaches the transport belt 20 of the sheet sorting device 16 so as to increase the transport speed of the transport belt 20. It may be configured as follows.

Further, the unit sheets 13 may be divided and processed according to a preset number of sheets. In this case, the sensor 15 replaced with a light emitting element and the sensor 15 which is a light receiving element.
When the leading edge of the single-sided sheet 13 is detected by a and the number of detection signals is counted to reach a predetermined number of sheets,
Immediately after the last single-piece sheet 13 reaches the conveyor belt 20 of the sheet sorting apparatus 16, or immediately before the first sheet 13 of the next sheet to be sorted reaches the conveyor belt 20 of the sorting apparatus 16, the conveyor belt 20. The control unit 26 may be configured to send an operation signal to the speed change mechanism 28 so as to increase the transfer speed.

Further, the sheet sorting device 16 according to the present invention.
In addition to being combined with the paper cutting device 1 and the stacker device 17, it is combined with other paper processing devices that perform sorting processing of printed matter, cards, mails, signatures, etc., or is provided on the way of a general paper conveying device. May be.

[0021]

As is apparent from the above description,
Advantageous Effects of Invention According to the present invention, it is possible to carry out sorting processing while continuously transferring single-piece paper sheets without retaining the single-piece paper sheets with a simple configuration.

[Brief description of drawings]

FIG. 1 is a schematic side view showing a sheet sorting device incorporated in a sheet cutting device and a stacker device.

FIG. 2 is a schematic plan view showing a continuous sheet that is cut into single-piece sheets.

FIG. 3 is a schematic perspective view showing a part of a sheet sorting device.

FIG. 4 is a schematic front view showing a speed change mechanism.

[Explanation of symbols]

 1 Paper Cutting Device 13, 13a Single Piece Paper 14 Sorting Marks 15, 15a, 40 Sensor 16 Paper Sorting Device 17 Stacker Device 18, 20 Conveyor Belts 19a, 19b Locking Rod 24 Drive Shaft 25 Drive Motor 26 Control Unit 27 Clutch Mechanism 28 Transmission mechanism 30, 32, 34, 36, 37 Gear 33 33 One-way clutch 35 Electromagnetic clutch

Claims (5)

[Claims] 1. Receiving continuously ejected single-sided paper,
On the transport path that continuously transfers single-sided paper, the paper transfer speed is temporarily increased, and the distance between the two single-sided papers received before and after this speed change is greater than the distance between other single-sided papers. A paper sorting method characterized by setting widely and sorting. 2. The paper sorting method according to claim 1, wherein the change of the paper transfer speed is performed by a speed change mechanism connected to a paper transfer mechanism for continuously transferring the single-piece paper forming the conveying path. 3. Receiving continuously ejected single-sided paper,
A paper transfer mechanism that continuously transfers single-piece paper, a sensor that is placed in front of the paper transfer mechanism and that detects a sorting mark provided on the single-piece paper, and a transfer speed of the paper transfer mechanism that is temporarily increased. A fast-forwarding mechanism and a control unit for operating the fast-forwarding mechanism immediately before or immediately after the single-piece sheet provided with the sorting mark in response to the sorting mark detection signal of the sensor reaches the sheet transport mechanism are provided. Paper sorting device. 4. Receiving continuously ejected single-sided paper,
A paper transfer mechanism that continuously transfers single-sided paper, a sensor that is arranged in front of the paper transfer mechanism to detect the single-sided paper, a fast-forward mechanism that temporarily increases the transfer speed of the paper transfer mechanism, and a preset When a predetermined number of unit sheets to be sorted are detected by the sensor, the fast-forward is performed immediately after the last single piece sheet to be sorted reaches the sheet transport mechanism or immediately before the next single sheet sheet reaches the sheet transport mechanism. A sheet sorter characterized by having a control unit for operating the mechanism. 5. The sheet sorter according to claim 3, wherein the fast-forward mechanism is composed of a speed change mechanism connected to the sheet transfer mechanism.