JP3029157B2 - Paper handling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates relates to use Kamisho management apparatus, especially <br/>, such as stapling distributes accommodating the paper into a plurality of bins
On Kamisho management devices use to perform a paper processing.

[0002]

2. Description of the Related Art Conventionally, a sheet post-processing apparatus has been used which performs post-processing such as sorting, stacking, stapling, punching, and stamping on a sheet on which an image is formed by an image forming apparatus such as a copying machine. In the bin moving type of this type of sheet post-processing apparatus, the bin must be completed before the next sheet is ejected, so the bin is moved according to the fastest time in the system. It is set as follows. That is, the drive timing of the bin movement of the driving means for moving the bin in the vertical direction is set. An encoder is provided on the drive shaft of the drive means, and the rotation (pulse) of the encoder is detected by a sensor. Then, a pulse is picked up from a certain reference position, and the upper and lower positions of the bin are determined by the number of pulses.

[0003]

THE INVENTION Problems to be Solved by the way, said of conventional
In equipment is in accordance with the fastest time, so is set to move the bottles, in the case of post-processing of sheets of a large size, the bottle before jogger SasageYurado operation for sheet alignment The move is completed. In the conventional equipment,
In order to reduce the overall height of the apparatus, the bin interval at the sheet discharge position of the image forming apparatus is wide, and the bin interval is narrow at other positions. , The paper may not be sufficiently aligned at a narrow bin interval. Therefore, taking slow the drive timing of the bottle movement of the drive means, although it is possible to align the paper of a large size enough, use Kamisho management speed of the system is reduced. Also,
Conventional driving means uses an encoder and a sensor to detect the vertical position of the bin based on the number of pulses.
When the edge portion of the encoder is at the detection position of the sensor and the sensor causes chattering due to, for example, vibration of the drive unit or the like, the pulse is detected even though the encoder is not rotating (the drive shaft is stopped). There is. Then,
Since the number of pulses is incorrect, the vertical position of the bin may be erroneously recognized.

[0004] The present invention has been made in view of the problems of the prior art, which has been made to solve this, purpose of that is entirely possible to carry out the paper alignment of a large-sized paper without decreasing the processing speed of the sheet To provide a paper processing apparatus capable of performing the above .

[0005]

To achieve pre-Symbol purpose SUMMARY OF THE INVENTION The invention of claim 1 includes a driving means for moving up and down relative to discharge outlet bins arranged vertically multiple stages, A sheet discharge detecting unit that detects that the sheet has been discharged onto the bin; an aligning unit that aligns the sheet on the bin; and a receiving unit that receives information on the sheet discharged to the bin. , Collate the paper into a plurality of the bins, and after collation,
In the sheet post-processing apparatus for stapling the sheet bundle of each bin, the driving unit is configured to perform the sheet alignment by the alignment unit in a wide bin interval according to the sheet size signal received by the receiving unit. The drive timing of the bin vertical movement is changed. To achieve pre-Symbol purpose, the invention of claim 2 includes a driving means for moving up and down the bottles which are arranged one above the multistage relative outlet, wherein the sheet is discharged onto the bin Paper discharge detecting means for detecting that the paper is discharged from the bin, aligning means for aligning the paper on the bin, and receiving means for receiving information on the paper discharged to the bin. In the sheet post-processing apparatus for stapling the sheet bundle in each bin after collating, the sheet alignment by the aligning means in a wide bin interval according to the sheet discharge speed signal received by the receiving means. So that you can
The driving timing of the bin vertical movement by the driving means is changed .

[0006]

According to the first aspect of the present invention, the driving timing of the driving means for moving the bin in the vertical direction with respect to the discharge port is controlled by the paper size signal received by the receiving means. Then, the time interval until the start of the movement of the bin is adjusted according to the sheet size, the swinging operation is sufficiently performed by the aligning means, and then the bin is moved up by the driving means before the next sheet is discharged. Or move it downward. According to the second aspect of the present invention, the driving timing of the driving unit that moves the bin up and down with respect to the discharge port is controlled based on the paper discharge speed signal received by the receiving unit. Then, the time interval until the start of the movement of the bin is adjusted according to the sheet discharging speed, the swinging operation is sufficiently performed by the aligning unit, and then the bin is discharged by the driving unit before discharging the next sheet. Is moved upward or downward .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIGS. 1 to 3 illustrate a first embodiment of the present invention. FIGS. 1 and 2 are diagrams for explaining the control of the drive timing of the drive means in each embodiment, and FIG. 3 is a first embodiment of the present invention.
FIG. 4 is a block diagram of an embodiment of FIG. In FIG. 3, reference numeral 10 denotes a control unit. The control unit 10 includes a reception processing unit 11 and a motor control unit 12. The reception processing unit 11 receives input of paper size data, speed data, and the like. Is supplied with a discharge signal from the paper discharge detection unit 13. The motor control unit 12 controls the bin vertical movement unit 14 and the discharged paper alignment unit 15, that is, performs the bin vertical movement and alignment operation.

With this circuit, when a discharge signal is input from the paper discharge detection unit 13 to the motor control unit 12, the paper alignment operation and the bin vertical movement are performed after waiting for the time calculated based on the size or speed data.

Next, the operation of the first embodiment having such a configuration will be described. First, the control of the drive timing of the bin movement of the drive means performed by the first control means will be described. In the first embodiment, a sheet size signal of an image-formed sheet discharged from the image forming apparatus is sent from the image forming apparatus to the receiving means, and the sheet size signal is sent from the receiving means to the first control means. A signal is input.
Based on the paper size signal, the first control means
The timing from the detection of paper discharge by the paper discharge detection means to the start of driving of the driving means is set. This timing is set short when the sheet size is small and the sheet transfer interval is small, and long when the sheet size is large and the sheet transfer interval is large. FIG. 1 is a timing chart showing the setting of the drive timing of the drive unit when the paper size is small. When the paper discharge detection unit (discharge sensor) detects the discharge of the first sheet, the alignment unit performs the operation after time t1. The paper on the bin is aligned for a time t2. In this case, the driving means is driven approximately after the time t1 when the minimum required time for discharging the paper onto the bin elapses, and the movement of the bin is started. You. Therefore, even if the paper size is small and the interval between successive paper transports is short, the movement of the bin by the driving means is completed quickly following the movement.

FIG. 2 is a timing chart showing the setting of the drive timing of the drive means when the paper size is large.
The movement of the bin by the drive unit is started after a relatively long time t3 has elapsed since the sheet discharge detection unit detects the discharge of the first sheet. The alignment of the paper on the bin by the alignment means is performed in the same manner as in FIG.
Since it is performed after time 1 for time t2, the swinging paper alignment time by the alignment means can be relatively long in a state where the bin interval before the bin movement is wide. For this, can also align the paper performs a sufficient swing for large size paper without changing the use Kamisho physical speed of the system, it is possible to improve the processing accuracy of the paper.

In the first embodiment, when the detected paper discharge speed is high, the bin starts to be moved by the driving means almost after the time t1 from the discharge of the paper as shown in FIG. When the sheet discharge speed is low, the bin starts to be moved by the driving means approximately at time t3 after the sheet is discharged as shown in FIG. In this manner, in the first embodiment, by setting the drive timing of the drive unit based on the paper discharge speed that changes in accordance with the paper size, the paper having a slower discharge speed has a wider bin interval. in performs the matching by the matching means, it is possible to use Kamisho sense of'll go-between high accuracy in a well matched.

FIGS. 4 to 6 illustrate a second embodiment of the present invention. FIG. 4 is an explanatory view showing a configuration of a main part of a bin position detecting mechanism according to a second embodiment of the present invention. FIGS. 5 and 6 are explanatory diagrams of bin position detection according to the second embodiment of the present invention.
Use Kamisho management apparatus according to the second embodiment, the moving and bottles arranged in multiple stages in the vertical direction, with respect to outlet sheet having an image formed from the image forming apparatus is supplied, a bottle in the vertical direction Drive means, paper discharge detection means for detecting paper discharge, alignment means for aligning paper on the bin, and discharge to the bin
Receiving means for receiving the received paper information, and control means for controlling the drive timing of the driving means based on the paper size signal received by the receiving means. Further, the use Kamisho management device is provided with a bin position detecting mechanism showing the configuration of a main portion in FIG. 4, an encoder 2 to the drive shaft 1 to move the rotating bottle vertically by operation of the drive means fixed Have been
A luminous flux is emitted from a light emitter (not shown) to the surface of the encoder 2. The first sensor 3 and the second sensor 3
When the first sensor 3 is located at a position for detecting a light beam with respect to the encoder 2, the second sensor 5 detects the light beam with respect to the encoder 2. So that both sensors 3
5 positions are set. A control circuit (not shown) is provided for determining that the drive shaft 1 is not rotating if the first sensor 3 detects a pulse but the second sensor 5 does not detect a pulse. ing.

Next, the operation of the second embodiment having such a configuration will be described. As shown in FIG. 4, the first sensor 3 and the second sensor 3
The drive shaft 1 that is driven and rotated by the drive means with the sensor 5
The position of the bin moved by the driving means is detected by detecting the pulse of the encoder 2 which rotates together with the bin. When the encoder 2 is rotated by the driving means, as shown in FIG. 5, the sensor 3 and the sensor 5 detect pulses with different phases (half pitch in the embodiment), and the sensor 3 detects the pulse. The vertical position of the bin moved by the driving means is detected based on the number of pulses to be performed.

As shown in FIG. 4, when the first sensor 3 is located at the edge of the encoder 2 and the encoder 2 is stopped, for example, the encoder 2 is driven by the vibration of the driving part.
Even if the first sensor 3 located at the edge of the sensor causes chattering and the first sensor 3 detects a pulse as shown in FIG. 6, the output logical value of the second sensor 5 is "L". State, the drive shaft 1 is determined to be stopped by a control circuit (not shown). Therefore, according to the second embodiment, even if a pulse is generated by the chattering of the first sensor 3 (or the second sensor 5) located at the edge of the stopped encoder 2, the pulse is generated. Since the number is not counted, it is possible to prevent erroneous recognition that the stopped bin is moving, and prevent erroneous detection of the vertical position of the bin.

In the second embodiment, the sensors are shifted by a half pitch. However, the sensor position may be any position as long as one detects an edge and the other detects a non-edge.

[0016]

According to the first aspect of the present invention, the timing of the bin movement by the driving means is set in accordance with the size of the paper discharged to the bin, so that even if the paper is large, the bin interval is large. Alignment by the alignment means can be performed, and sufficient alignment enables high-precision sheet post-processing. Claim 2
In the invention described in the above, the timing of the bin movement by the driving means is set according to the discharge speed of the paper discharged to the bin,
Even if the paper has a slow discharge speed, the alignment can be performed by the aligning means in a state of a wide bin interval, and a high-precision paper post-processing can be performed by sufficient alignment .

[Brief description of the drawings]

FIG. 1 is a timing chart showing a setting of a first drive timing of a drive unit according to a first embodiment of the present invention.

FIG. 2 is a timing chart showing a setting of a second drive timing of a drive unit according to the first embodiment of the present invention.

FIG. 3 is a block diagram of a first embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a configuration of a main part of a bin position detecting mechanism according to a second embodiment of the present invention.

FIG. 5 is an explanatory diagram showing pulses during rotation by a bin position detecting mechanism according to a second embodiment of the present invention.

FIG. 6 is an explanatory diagram showing pulses when the bin position detecting mechanism stops (chattering occurs) according to the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drive shaft 2 Encoder 3 1st sensor 5 2nd sensor 10 Control part 11 Reception processing part 12 Motor control part 13 Paper discharge detection part 14 Bin vertical movement part 15 Discharge paper alignment part

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Masatoshi Hosoi 2-28-24 Izumi, Higashi-ku, Nagoya-shi, Aichi Inside Yokota Building Ricoh Elemex Co., Ltd. (56) References JP-A-1-231767 (JP, A) Kaihei 2-294960 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B65H 39 / 11,37 / 04 G03G 15/00 534

Claims (2)

(57) [Claims] A drive means for moving bins arranged in upper and lower stages in a vertical direction with respect to a discharge port; a paper discharge detection means for detecting that the paper has been discharged onto the bin;
It has an aligning means for aligning the paper on the bin, and a receiving means for receiving information on the paper discharged to the bin, and collates the paper into a plurality of bins. In the sheet processing apparatus for stapling the sheet bundle, the bin vertical movement by the driving unit is performed so that the alignment by the alignment unit can be performed in a wide bin interval according to the sheet size signal received by the reception unit. A sheet processing apparatus characterized in that the drive timing of the sheet is changed. 2. A driving unit for moving bins arranged in upper and lower stages in a vertical direction with respect to a discharge port, a paper discharge detecting unit for detecting that the paper is discharged onto the bin,
It has an aligning means for aligning the paper on the bin, and a receiving means for receiving information on the paper discharged to the bin, and collates the paper into a plurality of bins. In a sheet processing apparatus for stapling a sheet bundle, the drive unit controls the bin up and down so that the alignment unit can perform sheet alignment in a wide bin interval according to a sheet discharge speed signal received by the reception unit. A sheet post-processing device characterized in that the drive timing of the movement is changed.