JPH01236162A - Post-treating device of sheet - Google Patents

Abstract

PURPOSE:To prevent a bin from being broken by constituting a device so that a detecting means stops electric current supply for a moving means when the detecting means detects that a binding device is positioning at a binding position. CONSTITUTION:A device is equipped with many bins 10 freely liftable to a machine body 12 and classifying-storing sheets, a binding device movable to both a binding position on which the sheets stored in these bins 10 are bound together and an evacuating position on which movement of bins 10 is not hindered by the same device and a moving device moving the binds 10. Sheets are classified and stored into the bins 10, and when sheets stored in the bins 10 are bound together, on movement of the binding device from the evacuating position to the binding position, it is detected by a detecting means 85 that the binding device is at the binding position, and the electric current supply for the moving means 17 is stopped to made the bins 10 unmovable for operating the binding work on the bonding device.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial field of application The present invention is a method for classifying sheets attached to an image forming apparatus such as a copying machine, a printing machine, or a laser beam printer and ejected from the image forming apparatus. The present invention relates to a sheet post-processing device for storage, and more particularly to a sheet post-processing device that includes a large number of bins and a binding device.

(B) Conventional technology A sheet post-processing device (hereinafter referred to as a sorter) that is equipped with a large number of bins and a binding device has been known in the past, and in this sorter, the binding device is arranged so as to be able to move forward and backward facing the bins. . Then, the binding device is inserted into a bin, and the sheets classified and stored in the bin are sequentially sorted for each bin by the binding device.

→ Problems to be Solved by the Invention However, in the above-mentioned sorter, when the binding device is placed in the binding position where the bins are inserted, the bins may move and be stacked due to a malfunction of the control circuit or noise from the sensor input. There were cases where the alignment of the sheet bundles being stored was disturbed or the bins were damaged.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a sheet post-processing device that eliminates the above-mentioned problem by stopping power supply to the bin moving means when the binding device is located at the binding position.

Means for Solving the Problems The present invention has been made in view of the above-mentioned circumstances, and for example, when shown with reference to FIGS.
12), a large number of pins (10) that can be raised and lowered to sort and store sheets, a binding position (B) that binds the sheets stored in these pins (10), and movement of the pins (10) is not obstructed. The binding device (60) moves to the retreat position (A).
) and a moving means (17) for moving the pin (10), the binding device (60) moves from a binding position (B) to a retracted position (A
), and when the detection means (85) detects that the binding device 160) is located at the binding position (B), the detection means (85) is configured to stop power supply to the moving means (17).

→ Operation Based on the above-described configuration, when sheets are sorted and stored in the bin (10) and the sheets stored in the bin (10) are to be bound, the binding device (60) moves from the retracted position (A) to the binding position ( B), the binding device (60) moves to binding position C.
The detection means (85) detects that the bottle is located at point B), stops the power supply to the moving means (17), prevents the bin (10) from moving, and performs the binding operation using the binding device (60).

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

The sorter 1 has a fuselage 12 as shown in FIGS. 2 and 3.
and a bin unit 11, and the body 12 has a loading port 2.
A pair of carry-in rollers 3 is installed adjacent to the pair of rollers 3.
A flapper 7 for switching the sheet conveyance direction to the conveyance path 5 or 6 is disposed downstream of the conveyance path 5 or 6. One of the conveyance paths 5 extends substantially horizontally, and a pair of paper discharge rollers 8 is disposed downstream thereof, and the other conveyance path 6 extends downward and has a discharge roller pair 8 downstream thereof. A pair of paper rollers 9 is disposed, and a stiburr 60 is disposed adjacent to the pair of paper rollers 9.
is installed. Further, downstream of the paper ejection roller pair 8 and 9, a bin unit 11 including a large number of bins 10 is provided.
A spring 13 with one end fixed to the body 12 is hooked to a hook 14, and the weight of the bin unit I/11 is carried by the spring 13, so that it is supported so as to be able to rise and fall. Guide rollers 15 are provided at the upper and lower portions of the base end side of the bin unit 11. Is is rotatably supported, and the roller 15.15 is fitted into a guide groove 16 provided in the body 12 so as to extend in the vertical direction, and rolls within the groove 16 to rotate the bin unit. 11. Further, a drive motor 17 is disposed on the body 12, and a thrust bearing 20 is further disposed on the bottom plate 19.

The thrust load of a rotating shaft 22 is supported by the thrust bearing 20, and the shaft 22 is rotatably supported at its lower end by the bearing 20 and at its upper end by a bearing 20' (see FIG. 11). Furthermore, a beam dome 21 and a sprocket 23 are fixed to the rotating shaft 22. Further, a chain 25 is stretched between the sprocket 23 and the shaft of the motor 17, so that the rotation of the motor 17 is transmitted to the rotating shaft 22 via the chain 25.

Furthermore, as shown in detail in FIG. 4, the bin unit 11 further includes a bottom frame 26 consisting of an inclined part and a horizontal part, and frames 27 and 27 provided vertically on the front and back sides of the tip of the frame 26. It has a unit main body 30 constituted by a cover 29 supported by the frames 27, 27, and an alignment reference plate 31 on the front side of the unit main body 30 that abuts the sheet. A support plate 32 is fixed to the back side of the base end of the frame 26, and a fan-shaped gear 33 is rotatably supported on the support plate 32. Further, a pulse motor 3 is mounted on the lower side of the support plate 32.
A gear 36 fixed to the output shaft of the motor 35 meshes with the sector gear 36. Furthermore,
A lower arm 37 is fixed to the sector gear 33, and the arm 37 is configured to rotate together with the sector gear 33. An arm 39 is fixed to a shaft 40 rotatably supported by the cover 29 at a position opposite to the arm 37 of the cover 29, and the center of rotation of the arm 39 and the A shaft 41 is installed at the center of rotation of the arm 37 .

Further, an alignment rod 42 is installed between the tip of the arm 37 and the tip of the arm 39, and the alignment rod 42 is configured to swing by a fan-shaped gear 36. Further, the arm 37 is provided with a light shielding plate 43, and the light shielding plate 4
3 rotates together with the arm 37 to turn on and off a home position sensor 45 disposed on the back side of the frame 26.

Furthermore, as shown in FIGS. 5 and 6, the stapler 60 includes a drive motor 61 and a gear 62 fixed to the output shaft of the motor 61, and the gear 62 includes a gear 63. are meshing. A link 65 whose one end is fixed to the main body is connected to the gear 63, and a head 66 for striking a needle is disposed at a node 65a of the link 65, and a lower side of the head 66 is provided. An anvil 67 for bending the needle is provided. Further, the head 66 and the anvil 67 are provided with vertical guides 74 and 74 that guide the sheet S when the stapler 60 is rotated from the retracted position A to the stapling position B (see FIG. 8). The guide 74
．． 74 is open on the tip side.

Furthermore, as shown in FIGS. 7 to 9, the stapler 60 has a shaft 69 erected on the body frame 12a, and a swinging board 70 is swingably supported by the shaft 69. . A stapler board 71 is fixed to the board 70, and a stapler 6 is attached to the stapler board 71.
0 is installed. Further, a gear box G containing a reduction gear group 75 is attached to the body frame 12a, and a motor 76 is disposed in the gear box G. Further, a gear 77 fixed to the output shaft of the motor 76 meshes with an input gear 75a of a gear group 75, and a link disc 79 is connected to the output shaft 75b of the gear group 75.
is fixed. A cam portion 79a is provided on the outer periphery of the link disk 79.

79b are provided facing each other, and these cam portions 79
a and 79b turn on and off a microswitch 80 disposed on the fuselage frame 12a to operate the motor 76.
The link disk 79 is configured to be FF, and the link disk 79
A shaft 79c is erected near the outer peripheral edge of the shaft 79c. A link arm 81 is rotatably connected substantially horizontally to the swing base plate 70, and a shaft 8 is attached to the link arm 81.
1a is erected, and a long hole 81b is opened.

Further, the shaft 79c is fitted into the elongated hole 81b, and a spring 82 is tensioned between the shaft 79c and the shaft 81a. A pen crank-shaped arm 83 made of resin or the like is rotatably supported near the shaft 69, and one end 83a of the arm is in contact with one end 70a of the swing base plate 70. , and the other end 83b is in contact with a microswitch 85 for detecting the stapler operating position.

Further, a sheet presence/absence sensor 73 is disposed on the swing board 70 via a mounting base 72, and the sensor 73 is a transmissive type having a U-shape in side view and consisting of a light emitting part 73a and a light receiving part 73b. It is composed of sensors.

And, as shown in detail in FIG. 10, the bin 10 is
Engagement plates 46 are formed on the front and rear sides of the tip, respectively, and when the engagement plates 46 engage with R (not shown) provided inside the frame 27, the bottle 10 can move the tip side. It is gaining support. Also, the bottle 1
A support shaft 47 is fixed to the front and rear sides of the base end of the roller 0, and a roller 49 is rotatably supported on the support shaft 47. Furthermore, a long hole 50 is formed in the bottle 10 at a predetermined distance from the shaft 41 and is longer than the rotational distance of the alignment rod 42 and sufficiently wider than the width of the M joint 42.
The base end 10c of the bin 10 stands perpendicularly to the seat storage surface 10b, and the bin 10 is inclined at a predetermined angle with the tip upward relative to the body 12 (see FIG. 3). Due to this inclination, the seat slides on the seat storage surface 10b and its rear end contacts the base end 10c, so that the seat is aligned in the front-rear direction. Further, a notch 51b is formed that extends from the tip of the bin body 51 to approximately the center of the sheet storage surface 10b.
This is to make it easier to take out small-sized sheets placed on the tray.

As shown in FIGS. 2 and 3, in the bin 10, the roller 49 is fitted into the guide groove 16, and the roller 49 of the lowermost bin 1o is connected to the guide roller 10.
It is placed on 5. Also, from the bottom bin 10, 1
The roller 49 of the upper bin 10 is placed on the roller 49 of the lowermost bin 10, and in this way, the lower bin 10 (D o -'y 49 ka 1 upper bin 1
The base end side of the bottle 10 is supported by supporting the roller 49 of the bottle 10. The alignment rod 42 is fitted into the length JL 50 of the bins 10, and the alignment rod 42 swings in the long hole 50 to move the sheet S to the alignment reference plate 3 It is configured to abut and align with.

Further, as shown in FIGS. 11 and 12, the lead cam 21 has a groove 21a slightly wider than the roller 49.
is carved in a spiral shape, and the groove 21a is formed by the roller 49.
When the lead cam 21 rotates, the roller 49 fits into the groove 21a and moves up and down.

On the other hand, the sorter 1 is equipped with a microcomputer 90, as shown in FIG. 1, and an NC terminal of a microswitch 85 is connected to an input terminal board of the computer 90 via a buffer 91. In addition, the computer 9
The drive circuit 92 of the drive motor 17 is connected to the output terminals D1 and D2 of the drive motor 17, and the M drive circuit 92 is connected to the NC terminal of the microswitch 85, using the NC terminal as a power source. Furthermore, the common terminal C of the microswitch 85 is connected to the power supply V, and the microswitch 85
5 is in the OFF state, the common terminal C is connected to the NC terminal.

Next, the operation of this embodiment will be explained along the flowchart of FIG. 13.

The operator places the original M on the original m I-ray 59 with the image side facing up, and sets the copy processing mode of the original M and the number of copies N1.
Input the sort mode, binding mode, etc. from the operation unit of the copying machine. The microcomputer 90, which receives the signal from the operating section, determines whether or not the binding mode is in effect, and when it is determined that the binding mode is in the binding mode, when the operator turns on the copy start switch, the computer activates a solenoid (not shown). 0FFI, transfer flapper 7 to bus 6
Switch to the side. Then, when the microswitch 85 is in the OFF state, the microcomputer 90 drives the top bin 1 by the drive motor 17 via the drive circuit 92 connected to the power supply V via the NC terminal and the common terminal C.
The lead cam 21 is rotated until the lead cam 21 reaches a position where the sheet S discharged from the discharge roller pair 9 is stored. Further, when the microcomputer 90 determines that the topmost bin 10 has been detected by the sensor based on a signal from a sensor (not shown), it sends a copy start signal to each section.

Then, a copying machine (not shown) that receives the signal copies the frostbite image onto a sheet S, and discharges the sheet S after fixing the copied image. The sheet S discharged from the copying machine is carried into the machine body 12 from the carry-in port 2 by a pair of carry-in rollers 3, and is conveyed to the flapper 7 by the pair of rollers 3.

Then, the sheet S is guided by the flapper 7 to the transport bus 6, passes through the path 6, and is discharged onto the uppermost bin 10 of the bin unit 11, which is moving downward, by a pair of discharge rollers 9. . Further, the sheet S discharged onto the bin 10 slides toward the base end due to the inclination of the pin 10 itself and comes into contact with the base end 10c, but is located at a distance from the alignment reference plate 31. In this state, the microcomputer 90 obtains sheet size information from the copying machine.
, the driving means rotates the alignment rod 42 from the home position to move the sheet S from the two-dot chain line position to the solid line position, and brings the front side of the sheet 88 into contact with and aligns with the alignment reference plate 31 (1st θ (see figure). Then, after a predetermined period of time, the driving means is reversed and the alignment rod 42 is returned to its home position. Then, by the same operation as before, the image of the original f^ is copied onto the sheet S, and the sheet S is aligned and stored in the bin 10 of the second stage which is raised one stage at a time. Similarly, a predetermined number of sheets S are sorted and stored on the bin 10, and furthermore, the original is replaced and a predetermined number of sheets S... are sorted and stored on the bin 10. In this way, when the copying and sorting work is completed by sorting and storing a predetermined number of sheets S on which the desired originals have been copied onto the bins 10, the microcomputer 90 rotates the lead cam 21 by the drive motor 17 to bin the topmost sheet. 10 is moved to the binding position, that is, the position where the sheet S discharged from the discharge roller pair 9 is stored (Sl).

Then, the computer 90 rotates the motor 76,
The rotation of the motor 76 is decelerated by the gear group 75 and transmitted to the output shaft 75b. Then, the rotation of the output shaft 75b causes the relink disk 79 to rotate, and the rotation of the disk 79 causes the stapler 60 to come into contact with the microswitch 80 when it is located at the retracted position A (see FIG. 8). The cam portion 79b that is in contact with the switch 80 is ONL.
The switch 80 is turned OFF when separated from the center. Further, when the link disk 79 rotates, the rotation of the disk 79 is caused by the axis 79.
link arm 81 from c via spring 82 and shaft 81a.
The arm 81 moves to the left (see FIG. 9) while swinging about the shaft 79c fitted into the elongated hole 81b.

Then, due to the movement of the link arm 81, the swing base plate 7
0 swings around axis 69. Then, the link disk 79 rotates further and the cam portion 79a contacts the microswitch 80, and when the switch 80 is turned on, the microcomputer 90 that receives the ON signal from the switch 80 links the motor 76 to 0FFj. Stop the disc 79. At this time, the swing board 70 has moved to the position shown in FIG. 9, and one end 70a of the board 70 presses one end 83a of the arm 83, causing the arm 83 to rotate counterclockwise. As a result, the other end 83b of the arm 83 presses the microswitch 85 to turn the switch 85 ON, that is, the common terminal C and the No terminal are connected, and the switch 85 is turned ON.
The microcomputer 90 that receives the signal via the buffer 91 moves the stapler 60 to the binding position B (see FIG. 8).
It is determined that it has moved to (S2). At this time, common terminal C
By disconnecting the NC terminal, the drive circuit 92 is disconnected from the power supply V, and even if a drive signal is input to the drive circuit 92 due to malfunction of the microcomputer 90, the drive motor 17 will not start. Furthermore, the stapler 6
0 moves from the evacuation position A to the binding position B, the bin 10
Sea stored above! -S is upper and lower guide 74.74
is guided between the head 66 and anvil 67 of the stapler 60. Further, when the sheet S stored on the bin 10 is a curled sheet, the curled sheet S is guided between the head 66 and the anvil 67 while being prevented from curling by the upper and lower guides 74 and 74. On this occasion,
The front corner of the rear end of the sheet S on the bin 10 passes between the light-emitting part 73a and the light-receiving part 73b of the rotary f-lucid presence sensor 73 together with the swinging board 70, so that the sheet S Detected by sensor 73. Also, the bottle 1
If the sheet S on the stapler 60 is pulled out by mistake and the sensor 73 does not detect the sheet S, the microcomputer 90 returns the stapler 60 to the retreat position A without operating it. The microcomputer 90 receives a signal from the sensor 73 indicating that there is a sheet S, and drives the drive mocro 1 to move the sheet S on the bin 10 to the stapler 10.
After the binding is completed, the stapler 60 is returned to the retracted position A (S4). Then, the computer rotates the lead cam 21 by the drive motor 17 to raise the bin 10 step by step, moves the stapler 60 to the stapling position B in the same manner as described above, and moves the stapler 60 to the 21st step located at the stapling position. The sheets S stored in the second bin 10 are checked by the sheet presence/absence sensor 73 and then bound. By the same operation, the bins 10 are raised one step at a time, and the sheets S on the bins 10 that are located at the binding position are checked by the sheet presence/absence sensor 73 and then bound, and all the sheets S on the bins 10 are bound. Finish the binding process (
S5).

In the above-described embodiment, the stapler 60 is configured to swing between the binding position B and the retracted position A using the link mechanism, but the present invention is not limited to this. It may be constituted by a stepper sig motor provided with a rack and pinion gear that linearly move to a retracted position where no obstruction occurs.

(G) As described in detail, according to the present invention, when the detection means detects that the binding device is located at the binding position, the detection means stops power supply to the moving means. With this structure, it is possible to reliably stop the moving means to prevent the bottle from being damaged, and it is also possible to effectively utilize the detection means without increasing costs.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a detection means according to the present invention. Moreover, FIG. 2 is a perspective view showing the C-1 post-processing device according to the present invention, and FIG. 3 is a front sectional view thereof. Furthermore, FIGS. 4 to 12 are diagrams showing essential parts of the sheet post-processing apparatus according to the present invention. FIG. 13 is a flowchart 1 showing the operation of the present invention. 1. Sheet post-treatment device, 10. Bin, 12.
・Airframe, 17. Transportation means, 60. Binding device
, 85...detection means, A. evacuation position, B. binding device.

Claims (1)

[Claims] 1. A large number of bins for sorting and storing sheets that can be raised and lowered with respect to the aircraft body, a binding position for binding the sheets stored in these bins, and a retraction position that does not obstruct the movement of the bins. A sheet post-processing device comprising a binding device and a moving means for moving the bins, further comprising: a detection device for detecting that the binding device is located at a binding position or a retracted position; If the detection means detects that the
A sheet post-processing device characterized in that the detection means is configured to stop power supply to the moving means.