JPH01231767A - Sheet post-processing equipment - Google Patents

Abstract

PURPOSE:To carry out the high-speed movement of a bin by providing a control means for moving a spiral cam in a lifted standby position at the time of lifting up the bin while moving same in a lowered standby position at the time of lowering the bin. CONSTITUTION:A lead cam shaft 31 is rotatably provided between a cam shaft holder 30 and a base 3, and a lead cam 32 is provided on the upper portion thereof so as to be able to carry out both normal and reverse rotations by selection. A flag is provided on the lead cam shaft 31 to detect the stopping position of the lead cam 32 by a sensor which is provided opposite to the flag. On the other hand, a control means for controlling the standby position of the lead cam 32 is provided on a control device and, at the time of moving a bin B upward, the lead cam 32 is rotated to be advanced to a lifted standby position in which the flag is opposite to the sensor, and kept on standby in that position.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial application field - (The light 11 is connected to an image forming device such as a copying machine or a printer pole, and the sheet is used for post-processing such as sorting the sheets discharged from the image forming device. The present invention relates to a sheet post-processing device, and more particularly to a sheet post-processing device that includes a spiral cam that moves a large number of bins containing sheets.

(I) Prior Art Conventionally, there have been sheet post-processing devices that include a helical cam that moves a large number of bins. The sheet post-processing device is No. 1!71
And as shown in 5th V, it has a large number of bins B capable of storing sheets P, and is equipped with a spiral cam 32 that engages with each bin B via a bin roller 49 provided on these bins B, By the rotation of the spiral cam 32, the
The sheets P discharged from an image forming apparatus such as a copying machine are sorted and stored in the bins B by moving bins one by one.

The spiral cam 32 has a spiral cam groove 32.
A is provided, and the bottle roller 49 of the bottle B is fitted into the cam groove 32a, and when the spiral cam 32 rotates once to the left or right, the bottle B moves upward or downward. It moves one bin upward or downward according to the moving bin roller 49. Further, the cam 4932a has an inclined portion 32b that moves the fitting roller roller 49 upward or downward when the spiral cam 32 rotates, and a slope portion 32b that moves the roller roller 49 to be fitted upward or downward when the spiral cam 32 rotates. Parallel part 32 that does not move
The spiral cam 32 stops rotating when the bin roller 49 of bin B reaches the center of the parallel portion 32c, and sets the center position to the standby position and moves the next bin B. Wait until.

(8) Invention or problem to be solved By the way, with the recent increase in speed of image forming devices such as copying machines, sheet post-processing has become a problem. Perhaps due to the demand for higher speed devices, the above-mentioned spiral cam has some play as it waits in the standby position, so when moving the bottle, it starts rotating and then moves the bottle roller of the bottle to the cam groove tilt 1. The drawback is that it takes time to move the bins to each other, and the bins cannot be moved at high speeds, making it impossible to meet demands for higher speeds.

Therefore, it is an object of the present invention to provide a 4I configuration with no play between the start of rotation of the helical cam and the start of its movement, thereby solving the above-mentioned problems.

(:) Means for Solving the Problems The present invention has been made in view of the above-mentioned circumstances. For example, as shown in FIG.
B) An inclined part (32b) that engages with the cam engaging part (49) and moves the cam engaging part (49) according to the source of rotation, and a parallel part that does not move the cam engaging part (49). (32c), and a driving means (29) for driving the spiral cam (32) in the forward or reverse direction depending on selection.
) and a sheet post-processing device (
In 1), the driving means (29) is connected to the spiral cam (32) or the cam engaging part (49) to the inclined part on the side in the ascending direction of the bin in the parallel part (32c) when the ascending mode of the bin (BJ) is selected. (32b) When the bottle (B) is moved to the rising standby position located nearby and the lowering mode of the bottle (B) is selected, the spiral cam (32) or the cam engaging portion (49) is moved to the parallel portion. (3
2c), a control means (104) for controlling the bottle to move to a lowering standby position located near the inclined part (32b) in the lowering direction of the bottle.

(f) Effect Based on the above-described configuration, when the ascending mode is selected, the spiral cam (32) waits with the cam engaging portion (49) located near the ascending direction side inclined portion. And a spiral cam (32
) starts rotating.

The upward movement of the cam engaging portion (49) starts immediately after the spiral cam (32) starts rotating. When descending mode is selected again,! The 1g spiral cam (32) has a cam engaging portion (49).
) is located near the slope on the downward direction side and waits. When the spiral cam (32) starts rotating, the downward movement of the cam engaging portion (49) starts immediately after the spiral cam (32) starts rotating. Then, the movement is completed in a short time without any play in the upward or downward movement of the bottle (B).

Note that the L symbol is shown for reference and does not limit the nitric acid in any way.

(F) Embodiment An embodiment of the present invention will be described below with reference to the drawings.

Sorter l is shown in Figures 5 and 6L! As shown in d.

1 pair of easy-to-cut side plates 2. It consists of a base 3, a body 6 having a cover 5, and a vertically movable bin unit 9 comprising a large number of bins B...

The machine body 6 is equipped with a pair of carry-in rollers 11 near a carry-in 010 for carrying in sheets discharged from an image forming apparatus such as a copying machine, and a non-sorting bus 1 is provided downstream of the pair of carry-in rollers 11.
2 and a sort bus 1 branching from the non-sort path 12.
3 is placed. The non-sort path 12 extends approximately horizontally, and a pair of non-sort J and IF paper rollers 15, which serve as a non-sort paper discharge port, are disposed downstream of the non-sort path 12, and the sort path 13 extends downward, A pair of sorting paper discharge rollers 16 is arranged downstream, which serves as a sorting paper discharge port, and a stabler 1 is arranged facing the pair of sorting paper discharge rollers 16.
7 are arranged.

Note that a stapler door 18 and a door switch S12 are sunk in the position facing the stapler 17 of the cover 5, and the stapler door 18 is opened and closed at 7 when the stapler 17 is replaced, and the door switch S12 is used to open and close the stapler door 18. Whether the stable door 18 is opened or closed is detected.

Further, a flapper 19 that is displaced to switch the conveying direction of the sheet and a flapper solenoid 20 that drives the flapper 19 are disposed near the pair of carry-in rollers 11. When the flapper solenoid 20 is turned on, the flapper 19
9 or displaced in the sheet conveyance direction or non-sort paper ejection port 15
Also, by turning off the flapper solenoid 20, the sheet conveying direction or the sorting sheet discharge port 16 side is selected. Furthermore.

A conveyance motor 21 is disposed near the pair of carry-in rollers 11 , and the conveyance motor 21 drives the pair of carry-in rollers 11 , the pair of non-sort paper discharge rollers 15 , and the pair of sort paper discharge rollers 16 .

The non-sort path 12 is provided with a non-sort bus sensor St, and the sort paper outlet 3 is provided with a sort bus sensor S2, and the transport motor 21 is provided with a sensor that detects the rotation of the transport motor 21. A transport lock sensor Sll is provided.

Further, a bin unit 9 is arranged downstream of the pair of non-sort paper discharge rollers 15 and the pair of sort paper discharge rollers 16, and one end of the bin unit 9 is fixed to the machine body 6, and the other end is fixed to the hook of the unit 9. The weight is carried by a spring 23 hooked to 22.

It is supported so that it can be raised and lowered. Then, the bin unit 9
On the base end side, an upper guide roller 25 is rotatably supported at the upper part, and a lower guide roller 26 is rotatably supported at the lower part. It fits into the guide plate 27 and rolls within the guide plate 27 to guide the bin unit 9 when the bin unit 9 moves up and down. Also,
A bin unit drive motor 29 is disposed on the machine body 6, and a camshaft holder 3o is disposed near the pair of sort paper discharge rollers 16 on the machine body 6. The lead cam shaft 31 is rotatably supported between the thrust bearing 34 and the thrust bearing 34 disposed in the lead cam shaft 31 . A beam cam 32 is disposed above the lead camshaft 31, a sprocket 33 is fixedly installed below the lead camshaft 31, and a chain 35 is stretched between the sprocket 33 and the bottle unit drive motor 29. The lead cam 32 can be rotated in both forward and reverse directions by a bin unit drive motor 29 that rotates in both forward and reverse directions depending on one selection.

As shown in FIGS. 5 to 71A, the bin unit 9 includes a frame 36 consisting of a #'I moon part, a 4i17 part, and a horizontal part, and the #'! of the frame 36. Vertical frames 37, 3 provided vertically on the front side and back side of the tip of the oblique part
7 and a pin unit body 40 constituted by a linker 39 supported by the vertical frame 37.37, and an alignment base plate 41 for contacting the sheet is provided on the front side of the bin unit body 40. It is being Further, the bin unit 9 has a large number of bins B... and an alignment rod 43 that moves around a moving center axis 42, and the bin B has a number of bins B... as shown in FIG. 8. Engagement plates 46 are formed on the front and rear sides of the tip, respectively, and when the engagement plates 46 engage with a support plate (not shown) provided inside the vertical frame 37, the tip of the tongue B is It is designed to be supported on the tip side. Furthermore, roller support bins 47 are fixed to the front and back sides of the base end of the bin B, respectively, and a bin roller 49 is rotatably supported by the bins 47. Furthermore, the bin B has the above-mentioned moving center axis 42.
A long hole 50 which is longer than the four-way length of the alignment rod 43 and sufficiently wider than the width of the alignment #i43 is opened at a predetermined distance from the base end Bl of the bin B or the sheet storage surface B.
2, and the bin B is the fifth one.
As shown in FIGS. 7 to 7, the tip is inclined upward at a predetermined angle with respect to the body 6, and due to this inclination, the seat slides on the seat storage surface B2 and the rear end contacts the base end Bl. The rear direction of FrrJ is aligned.

And, as shown in FIGS. 6 and 7, the Don B is
The bin roller 49 protrudes from a long groove 52 provided at the base end of the bin unit main body 40 and is fitted into the guide plate 27 of the machine body 6, and the bin roller 491 of the bottom Bll is placed on the lower guide roller 26. 11! and the bottom bin B. The bin roller 49 of which B which is one level higher is placed on the bin roller 49n of the lowest bin Bn, and so on, the upper bin roller 49 of which B is supported by the bin roller 49 of the lower bin B. As a result, the & end sides of the bottles B... are each supported by the bin unit main body 40.

The lead cam 32 has the first L! ! ! As shown in FIG. 3, a cam groove 32a having a slightly wider radius than the bin roller 49 is formed in a spiral shape, and when the lead cam 32 rotates, the pair of sorting and discharging rollers 16
The bottle roller 49 of bottle B, which is located opposite to the cam groove 3,
2a, for example, as shown in FIG.
2, the roller 49C of the bottle Bc is moved to the middle position δ of the lead cam 32 (position 49b!2 in the figure), and with one more rotation, it is moved to the position where it passes the lead cam 32 (see figure 49b). Move to middle 49a position 22). and,
Further, when the lead cam 32 rotates once, the above-mentioned lead cam 3
Push up the bin roller 49a or the upper bin roller 49 that was in the position where it passes through the upper guide roller 25, and then push up the upper bin roller 49 or the upper guide roller 49 as shown in FIG. push up,
Raise bin unit 9 or 1 step at a time. Then, as the bin roller 49 moves, each bin B... is sequentially moved, and at that time, at a position facing the pair of sorting and discharging rollers 16, for example, as shown in FIG. 1 and FIG. A bin Bb that receives sheets from the paper roller pair 16, and the bin B.
Bin B1.b located on both upper and lower sides of B. Openings x, X that are wider than the distance between the bins B and the other bins B are formed between the bins Bc and Bc.

In this manner, the rotation of the lead cam 32 causes the fin unit 9 to rise or fall. A bin home position sensor S5 is arranged near the first hook 22, and the bin unit 9 that has moved to the lowest home position is detected by the bin home position sensor S5.

On the other hand, the helical cam groove 32a of the lead cam 32 includes an inclined part 32b and a parallel part 32c, and the lead cam 32
During the rotation, the bin roller 49 that engages with the cam groove 32a is moved upward or downward at the A1 section 32b, and there is play in the parallel section 32c so that it does not move.

Further, a flag 55 is arranged on the lead cam shaft 31, and a sort cam sensor S4 is arranged opposite to the flag 55. When the plaque 55 is detected by the sort cam sensor S4, the lead cam 32 In addition to detecting one revolution, the stop position of the sorting cam 32 is also detected.

3 is an O-ring that is press-fitted into the bin roller 49 and absorbs vibrations when the bin B is raised and lowered.

Further, as shown in Fig. 6 above and below the base end of the bin unit 9, there are transparent bin paper detection sensors S3. S3 is arranged, and when all the sheets P are taken out from the bin unit 9, the bin paper detection sensor S3. In step S3, it is detected whether there is a sheet or not, and it is determined whether one work is completed.

Further, as described above, the bin unit 9 is equipped with the matching rod 43, which will be described below as the 71st. ! ! 1 and FIG. 8, the alignment of the sheets P by the alignment rod 43 will be explained.

A support plate 60 is provided on the rear side of the base end of the frame 36 of the bin unit 9, and a lower arm 6 is attached to the support plate 60.
One side of the lower arm 61 is rotatably supported by a lower rotating shaft (not shown) that projects upward from the support plate 60. On one side of the lower arm 61, the lower end of the moving central shaft 42 is fixed coaxially with the lower rotating shaft, and on the other side, the ↑' end of the alignment rod "43" is fixed. Further, the upper end of the alignment rod 43 and one end of the moving central shaft 42 are attached to the upper arm 62, and the aligning rod 43 and the moving center shaft 42 are connected by the arm 62 and the lower arm 61.

The moving center shaft 42 is rotatably supported by an upper rotating shaft 63 projecting downward from the bin cover 39, and the alignment rod 43 serves as a movable eye with the moving center shaft 42 as a fulcrum. Further, a fan-shaped gear 65 whose rotation center coincides with the center of rotation of the lower arm 61 is fixed to the lower arm 61, and an alignment rod drive motor 66 is disposed below the support plate 60, and the alignment rod drive motor 66 is arranged below the support plate 60. Output gear 6 of rod drive motor 66
7 and a fan-shaped gear 65 are engaged with each other, and the alignment rod 43 is moved by rotation of the alignment rod drive motor 66.

Then, when Mff Gorin 4J aligns the sheet Pf,
It moves from the home position (not shown) to the width alignment position gi43a determined according to the size of the sheet P, contacts the edge of the sheet P, and works with the alignment reference plate 41 to move the sheet P. After alignment, the sheet is further moved to the standby position ff143b to stand by in preparation for the next sheet p0)5.

In addition, the matching rod drive motor 66 is a Stella Pink motor.
The amount of movement of the matching rod 43 +1 is determined by the number of pulses given.

Further, a light shielding plate 69 is fixed to the lower arm 61, and by moving the light shielding plate 69 together with the lower arm 61, the alignment rod home position sensor s9 fixed to the frame 36 is turned on and off. do.

Further, as described above, near the pair of sort paper discharge rollers 16,
A stapler 17 is arranged, and the stapler 17 will be explained below.

The stapler 17, as shown in FIGS. 9 and 10,
It has a stirrer motor 71 and a gear 72 fixed to the output shaft of the stirrer motor 71.
gear 73 is meshed with. A link 75 whose one end is fixed to the main body is connected to the gear 73.
A head 76 for striking a needle is disposed in the Wi portion 75a of the link 75, and an anvil 77 for bending the needle is disposed below the head 76. In addition, the head 7
6 and the duckling 77 are provided with upper and lower guides 74.74, each of which has an open end. Further, a one-rotation cam 78 is disposed on the gear 73, and a stapler cam sensor S10 is disposed opposite to the cam 78.
Each stapling operation of the stapler 17 is detected by IO.

The stapler 17 also includes a staple cartridge 84, which stores a large number of connected staples. The staple cartridge 84 is attached to and removed from the rear of the stapler 17, and is pulled out in the direction of arrow E when replacing staples.

Further, the stapler 17 is provided with a stapler driving section 88 that drives the stapler 17 to move IIJ+ between the stapling position 17a and the retreat position 17b.
(see FIG. 11), the stapler drive section 88 includes an 11th
As shown in FIGS. 13 to 13, a shaft 79 is erected on the body frame 2a, and a swing base plate 80 is supported by the shaft 79 so as to be freely movable. Then, the swinging substrate 80
A staple board 81 is fixed to the stable board 81, and the stabler 17 is mounted on the stable board 81. Also,
A gear box 83 containing a reduction gear group 82 is attached to the body frame 2a, and a stabler swing motor 85 is disposed in the gear box 83. Further, a gear 86 fixed to the output shaft of the stapler swing motor 85 meshes with an input gear 82a of a reduction gear group 82, and a link disk 87 is fixed to the output gear 82b of the reduction gear group 82. has been done. Cam portions 87a and 87b are provided on the outer periphery of the link disk 87, facing each other, and these cam portions 87a and 87b are disposed on the body frame 2a to drive the stabler rocking motor 85.
The stapler position sensor S6 that operates the stapler position sensor S6 is turned on and off, and a shaft 87c is provided upright near the outer peripheral edge of the link disk 87. Further, a link arm 89 is rotatably connected substantially horizontally to the swing base plate 80, and a shaft 89a is erected in the link arm 89, and a long hole 89b is formed in the link arm 89. Furthermore, the shaft 87c is fitted into the elongated hole 89b,
A spring 90 is stretched between the shaft 87c and the shaft 89a. In the vicinity of the shaft 79, a sensor actuating arm 91 made of resin or the like is supported by a rotating mechanism.
One end 91a of the sensor actuating arm 91 is connected to the swing base plate 8.
0, and the other end 91b is in contact with the stabler operating position neck sensor S7.

Further, as shown in FIG. 12, a SdayPla paper sensor S8 is disposed on the swing board 80 via a mounting base 92, and the sensor S8 is composed of a light emitting part and a light receiving part when viewed from the side. It consists of a U-shaped transmission type sensor.

Then, the stapler 17 is driven by the stapler moving unit 88 to move to the stapling position 17a in the bin movement area when stapling the sheets P, and after the stapling is completed, to a retracted position that allows movement of the bin B. 17b and waits at the retreat position 17b.

The sorter 1 also includes a central processing unit (CPU) 93, a read-only memory (ROM), as shown in FIG.
) 94, a random access memory (RAM) 95, an input port 96, an output port 97, etc., and a control block is stored in the ROM 94.
Input data and work data are stored in the RAM 95.
The input boat 96 is connected to sensors and switches such as the non-sort bus sensor S1, and the output boat 97 is connected to loads such as the transport motor 21.
Each unit connected via the bus is controlled according to a control block stored in either the ROM 93 or the ROM 94. Also, the CP
The U93 is equipped with a serial interface, and performs serial communication with, for example, the CPU of the copying machine main body, and controls each part using signals from the copying machine main body.

On the other hand, the control device is provided with a control means 104 for controlling the standby position of the lead cam 32. Hereinafter, the standby control of the lead cam 32 will be explained based on FIG. 21.4 and FIG. .

In addition, since the engagement position in the cam groove 32a of the bin roller 49 corresponds to the position of the flag 55, the position of the flag 55 will be described as the engagement position in the cam groove 32a of the bin roller 49.

The lead cam 32 is normally stopped when the bottle is stopped by locking the engaged bottle roller 49 in the approximately central portion of the parallel portion 32C of the cam groove, and in this state, the flag 55 As shown in FIG. 2(a), the center portion thereof is stopped so as to face the lead cam sensor S4.

When moving the bottle B upward, the lead cam 32 moves the bottle roller 49 to be engaged fth time from the center of the parallel portion 32c to near the end of the parallel M32c, and Wait at the rising standby position located near the end. That is, the lead cam 32
Rotate in the direction of arrow A from the position n shown in Figure (a) to Figure 2 (
b) It advances to the position and waits at the rising standby position opposite the l side end 55a of the flag 55 or the lead cam sensor S4.

The timing of this movement is T in FIG.

Shown in When the bottle is moved, the lead cam 32 rotates once from the standby position shown in FIG. 2(b) to the position shown in FIG. 2(a).
It stops at the position shown in , and the tongue B is moved upward by one bin. The timing of this movement is shown at T2 in FIG.

Note that when the lead cam 32 starts rotating from the rising standby position, the bottle roller 49, which was located near the end of the parallel part 32c of the cam groove, is immediately moved to the inclined part 32b, and is moved above the bottle B in a short time without play. Move or start.

In preparation for the next bin movement, the lead cam 32 moves from the position Z shown in FIG. 2(a) to the raised standby position shown in FIG. 2(b) and waits.

Also, when moving the bin B downward, the lead cam 3
2 rotates in the direction of arrow A'' from the position shown in FIG. 2(a) prior to the bin movement, and advances to the descending standby position shown in FIG. The lead cam 32 advances to the lowered standby position facing the sensor S4, waits at the lowered position, and starts rotating from the lowered standby position during the downward movement in the same manner as during the upward movement described above.Thereby, the lead cam 32 When the rotation is less than 1 rotation or 360 degrees [360 degrees - (lead cam f striking angle /
2)], the pin movement can be completed faster than when rotating 360 degrees, and the bin can be moved at high speed.

The operation of this embodiment will now be described along the flows shown in FIGS. 151ffl to 21.

First, as shown in FIG. 15, when a copying operation is started by pressing, for example, a copy start key on the copying machine main body, a sorter start signal is sent from the copying machine main body using a serial signal. Sorter l is waiting for this signal (Stepl
O1), 5 when a sorter start signal is sent.
Proceed to tepl 02. In SLep 102, the mode of operation for one job is determined until the next sorter start signal disappears, and mote data is stored in the RAM 95. Then, in order to detect the position of the alignment rod 43, the -degree alignment rod 43 is returned to the home position (SLepl 03).
-Next, each part is operated based on the mode determined in 5tcp102. That is, 5tepl 04
Determine whether it is in non-sort mode or not, and if it is in non-sort mode, determine whether to stabilize
step 105), staple non-sort mode (Stepl O7) when stabling, non-sort mode (SLepl 08) when not stapling
If it is determined at 5tepl 04 that the mode is not non-sort mode, the process advances to 5tepl O6 to determine whether or not the mode is sort mode. If it is sort mode, go to sort mode 5 tepl O9, if there is no sort mode 1, judge it to be croup mode and go to 5 tc
Proceed to pl 10, and after completing the operation in any of the modes listed in L, the program proceeds to 5tepl l 1, and determines whether there is a sorter start signal, that is, l job or 1 to 7'. do. If there is a sorter start signal, if the l job is not completed, the program returns to 04.Also, if there is no sorter start signal, one job is finished and the program returns to the first 5tepl O1 Proceed to.

Next, along No. 161114, the operation of the staple non-sort mode is shown.

The position of the bin unit 9 in the staple non-sort mode is the home position, and in step 5201, the bin unit 9 is moved to the home position. Here, the stapler 17 cannot stabilize the sheets stowed on the bin cover 39 and staples the sheets stored in bin B, so even if there are non-sheets, if the stable mode is selected, The flapper solenoid 20 is turned off and the sort discharge port 16 is selected (SLep 202) because it is a pleasure to take out the sheet. After that, wait until the IS confirmation signal comes (SLep203)
.

When the size confirmation signal comes, proceed to 5step 204, 5t
In ep204, the size data sent from the copying machine main body is stored in the RAM 95, and if it is the first sheet to be ejected from the copying machine main body (SLep, 205), the alignment rod 43 should be at the home position. Therefore, the alignment rod 43 is moved to the width alignment position 43a (SLep206
), 5tep205, if it is not the first one, it is "1'1"
When the alignment rod 43 is moved to the width alignment position 43a at 5tep 206, the program moves to 5tep.
Proceed to 207. At step 5207, wait until the sheet ejection signal is received from the copying machine main body, and when the sheet ejection signal is generated, move the alignment rod 43 from the width adjustment position 43a to the standby position 43b (5tel+208), convey the sheet into bin B (step 209), align Move the rod 43 to the convergence position 43a to align the sheets (SLep201
), the program proceeds to 5step211. 5t
In ep211, it is determined whether there is a stable signal or not.
If yes, perform stapling operation (SLep211
), or if there is none, the program returns to the main routine.

Next, the operation of the non-sort mode will be explained along FIG. 17.

In the non-sort mode, the sheets are ejected on top of the bin unit 39, so the bin unit 9 must be moved to the lowest position, which is the home position (5 steps 310), and the non-sort 74
Turn on the flapper solenoid 20 to eject the sheet from the paper 015 (Step 311), then wait for the size confirmation signal (Step 312),
When the size confirmation signal comes, confirm the size 5step 31
3), the program proceeds to 5step314. 5
At Lep 314, the process waits for a paper ejection signal from the copying machine main body, and when the paper ejection signal is generated, the process advances to Lep 315, where the sheet is ejected onto the converter 39, and the program returns to the main routine.

Next, the operation of the sort mode will be explained along the 181st:U.

Determine whether or not there is a bin initial signal indicating whether or not to return the bin unit 9 from the copying machine main body to the home position (5tep401), and only if yes, move the pin unit 9 to the home position (5Lcp402)
), then the flapper solenoid 20 is turned off in order to select the sorting outlet 16 (Step 403), and the program proceeds to 5step 404. 5tep404
Then, wait for a size confirmation signal to be generated, and when the size confirmation signal is generated, proceed to step 405. 5 Step 405 to determine the size, then determine whether the size of the first sheet is determined (Step 406), and only if it is the first sheet, move the alignment rod 43 to the width adjustment position and move it to 143a (SLe
p407), the program proceeds to 5step408. In step 5408, the process waits for a paper discharge signal from the copying machine main body, and when the paper discharge signal is received, the process advances to step 5Lep409.

5Lep409, the lead cam 32 is moved to the standby position, and then the alignment rod 43 is moved to the standby position 43b (SLep410).0Next, a conveyance operation is performed to discharge the sheet into the chamber B... (Step411), After the transfer operation is completed.

Turn on the bin unit drive motor 29 and shift it to the first position (step 412), and move the q combination 43 to @shift position d4
3a (5tep 413), the program proceeds to 5tep 414. In Step 5414, it is determined whether or not there is a stable signal, and only if there is, a stapling operation is performed (Step 415), and the program returns to the main routine.

Next, the operation in group mode will be explained along the 19th IJ.

First, it is determined whether or not there is a bin initial signal from the copying machine main body (Step 501), and only if there is, the bin unit 9 is moved to the home position (Step 50).
2). Next, wait for the size confirmation signal (Stap 503
), once the size confirmation signal is generated, the process proceeds to step 504. 5step 504 Confirm the size, then 1
5Lep505)
, if it is the first sheet, move the alignment rod 43 to the width alignment position 43a.
(Step 506), the program is 5te
Proceed to p507. In step 507, the process waits for a paper discharge signal to be generated, and when the paper discharge signal is generated, the process advances to step 508. At step 508, the alignment rod 43 is moved to the standby position 43.
b, then performs a conveyance operation to convey the sheet into bin B (Step 509), and after the conveyance operation is completed, 5L
Progress to cp510. In step 510, flUrL determines whether there is a bin shift signal from the copying machine main body.
Only if yes, shift Bin B by 1 pin 5
Lep511), aligning rod 4 to align the sheets
3 to the width alignment position 43a (Step 512
), the program returns to the main routine.

Next, the conveyance operation will be explained along FIG. 20.

During the conveyance operation, when picking up or receiving sheets from the copying machine main body, if the sheet conveyance speed of sorter 1 is slower than the sheet ejection speed of the copying machine main body, the sheets or loops are passed between the sorter L and the copying machine. Paper jams occur during production. Also, if the sheet conveyance speed of sorter L is faster than the sheet ejection speed of the copier main body, the sheets will be pulled together.
There is a risk of abnormal noises or sheet damage. There,
The conveyance speed of the sorter 1 is synchronized with the process speed of the copying machine main body (Step 601). Next, it is determined whether the flapper solenoid 20 is turned on, that is, whether the sorting outlet 16 or the non-sorting outlet 15 is selected (step 602). If the flapper solenoid 20 is on, the non-sorting outlet 15 is selected. 5t is selected, so the non-sort pass sensor SL or 5t is selected.
To ep603, sort if flagpanlenoid 20 or off! Since J jJS 口 1 口 6 has been selected, the process advances to 5tcp604, which detects the sort bus sensor S2. 5Lcp603 and 5tep604 wait until the non-sort bus sensor S1 and sort bus sensor S2 are turned on, respectively, and then proceed to 5tep605.

In step 605, a counter is set to measure the point at which the conveyance motor 21 is controlled at the time of discharge. after that,
It is determined whether the counter set in 5step 605 has finished counting (5Lep 606), and if the count has increased, the process proceeds to 5step 609, and if the count has not increased, the process proceeds to 5step 607. In 5tcp607, it is determined whether or not there is a paper discharge signal from the copying machine main body, and only if there is no paper discharge signal, it is determined that the sheet has completely come out from the copying machine main body, and the conveyance speed is maximized (Step 608).
5tep 609 proceeds after it is determined in 5tep 608 that it is the point to perform ejection control, and controls the conveyance motor 21 to the sheet ejection speed of the copying machine main body. After that, set the counter to measure the discharge completion point in 5 steps.
610), the operation ends when the counter increases (S
tep611).

Next, the stapling operation will be explained along the diagram m21.

First, in step 701, the stapler swing motor 85 is turned on to move the stapler 17, and until both the stapler operating position sensor S7 and the stapler positioning sensor S6 are turned on, that is, until the stapler 17 moves to the operating position 17a. to drive the stapler swing motor 85. Next, the stapler motor 71 is driven to perform stapling. After confirming that the stapler cam sensor SIO is turned off, the stapler motor 71 is driven until the stapler cam sensor SIO is turned on, that is, after one rotation, the stapler motor 71 is is turned off to complete one stapling operation (Step 702).Then, the stapler operating position L sensor S7 is turned off, and the stapler positioning sensor S6 is turned off.
In other words, the stayer 17 or the retracted position 17 is turned on.
Drive the stapler swing motor 85 until the stapler moves to position b (5tep703).

After that, it is determined whether or not all bins B... have been completed, and if they have not been completed, they are shifted by one (Step
705), 5step7 to do the next stapling
01, and when it is finished, the stable operation is finished r.

(g) As described in detail, according to the present invention, the spiral cam is provided with a control means for moving the spiral cam to the rising standby position when the bottle is raised and to the lowering standby position when the bottle is lowered. Therefore, the movement of the bottle starts immediately after the rotation of the spiral cam starts, and the movement of the bottle can be completed in a short time without any play, and the bottle can be moved at high speed. The speed of the apparatus can be increased in accordance with the speed increase of the image forming apparatus.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 shows a sorter according to an embodiment of the present invention.
FIG. 2 is a side view of the lead cam, FIG. 2 is a cross-sectional view of a flag indicating the standby state of the lead cam, FIG. 3 is a plan view of the lead cam, and FIG. 4 is a diagram showing the timing of driving the bin unit drive motor that drives the lead cam. , FIG. 5 is a perspective view of a sorter according to an embodiment of the present invention, FIG. 61A is a side view thereof, FIGS. 7 to 13 are views showing the constituent parts of the sorter, and FIG.
is a perspective view of the bottle unit body, and FIG. 8 is a plane tA of the bottle.
, FIG. 9 is a side view of the stabler, and FIG. 10 is its perspective I.
A. FIG. 11 is a side view showing the moving part of the stabler 17;
Fig. i12 is a karika-kariya view of Fig. 11, 131:4 is a yaku-kuya view of Fig. 11, and rFSl 4 is a diagram showing the configuration of the control device. 15 to 21 are flowcharts showing the operation of the sorter according to the embodiment of the present invention. l...Sheet post-processing device (sorter), 29...
- Drive means (bin unit drive motor), 32... Spiral cam (sort cam), 32b... Inclined part, 32c... Parallel part, 49... Cam engaging part (bishikoro), 104...・Control f, dead,
B...Bin. Fig. 1 Fig. 2 (a) (b) (C) Fig. 3 Fig. 5 upper Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 1o Fig. 11 Fig. 13 Fig. 14 Fig. 17 Figure 21

Claims (1)

[Claims] 1. A plurality of bins, an inclined part that engages with a cam engaging part of the bin and moves the cam engaging part during rotation, and a parallel part that does not move the cam engaging part. and a driving means for driving the helical cam in a forward direction or a reverse direction depending on the selection, and moves the bins one bin at a time for each rotation of the helical cam. In the sheet post-processing device, the driving means is moved to a rising standby position in which, when the bin ascending mode is selected, the helical cam moves the cam engaging portion to a position near an inclined portion on the side of the ascending direction of the bin in the parallel portion. position and when said bin lowering mode is selected,
A control means for controlling the spiral cam to move the cam engaging part to a descending standby position located near the inclined part on the bin descending direction side in the parallel part. .