JPS6221706B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a paper sorting device that temporarily fastens both edges of Z-folded copy paper using a press to increase the number of copy papers that can be accommodated in a sorter turbine.

(Prior art) Conventional paper sorting devices include a sorter mechanism that sorts copy paper ejected from a copying machine into a corresponding sorting turbine, and also converts large size copy paper such as A3 size into A4 size before the sorting process. Some have a paper folding mechanism for Z-folding. According to this paper sorting device, even if there are large copies such as A3 size in the copy paper, it will be Z-folded into A4 and then discharged to the sorting turbine, so small copies such as A4 size will be Even when collating together with paper, it can be easily collated.

However, in conventional paper sorting devices, when the copy paper Z-folded by the paper folding mechanism is stored in each sorting turbine, the paper folding part opens and the thickness increases. The number of sheets stored in the sorting turbine, which has limited storage space, is reduced.

(Objects and Structure of the Invention) The present invention has been made in view of the above, and it increases the storage capacity of each sorting turbine section, which has an extremely narrow storage space, and provides Z-folding so as not to impede the stacking of sheets. A paper sorting device is provided that is provided with a temporary fixing mechanism for temporarily fixing copy paper by pressing one end of the copy paper with a protrusion and the other end with an elastic body.

The paper sorting device according to the present invention will be explained in detail below.

(Embodiment) FIG. 1 shows an embodiment of the present invention, in which a paper folding mechanism 1 for folding copy paper 21 discharged from the main body 28 is provided on the side surface of a main body 28 of the copying machine. This paper folding mechanism 1 is provided with an inlet 2 and a guide 3 continuous with the inlet 2, and a discharge side 3 of the guide 3.
A is provided with a pair of folding rolls 4a and 4b that are in pressure contact with each other, and the folding roll 4a is in pressure contact with a feed roll 5. A lower pocket 7 is provided on the delivery side of the nip portion 6 between the folding roll 4a and the feed roll 5, and a first gate 8 is provided at the entrance portion 7a of the downward pocket 7 so as to be openable and closable. The gate 8 is opened and closed by a first solenoid 9. An upward pocket 11 (having a stopper portion 11a) is provided on the exit side of the nip portion 10 of the pair of folding rolls 4a, 4b, and a second gate 12 is provided at the entrance portion 11a so as to be openable and closable. The second gate 12 is opened and closed by a second solenoid 13.
An auxiliary folding roll 14 is pressed against the other folding roll 4b, and a transport belt 16 is provided on the exit side of the nip portion 15. On the other hand, a third solenoid 17 is installed in the lower pocket 7.
A stopper 18 is provided so as to be openable and closable. Further, a transport belt 19 is provided vertically toward the discharge side of the transport belt 16. A star wheel 20 having a jagged outer periphery is provided on the transport path of the transport belt 19, and presses a Z-folded copy paper 21 in cooperation with an elastic roller 22, which will be described later. FIG. 2 shows an elastic roller 22 (made of rubber, for example), which is rotatably supported by a plunger 25 and a pair of supports 23, and the plunger 25 extends from the solenoid 24. An extension spring 25a is set around the plunger 25 so as to draw the plunger 25 in. Under normal conditions, the tension spring 25a releases the pressure contact between the star wheel 20 and the elastic roller 22. On the other hand, when the solenoid 24 is actuated, the plunger 25 protrudes against the bias of the extension spring 25a, and the star wheel 20 and the elastic roller 22 are brought into pressure contact. A plurality of sorting turbines 26 are provided above the paper folding mechanism 1. Inside the copying machine main body 28 is a control unit 2 that controls each part of the copying machine including the solenoid described above.
7 (for example, a microcomputer). The control unit 27 receives sensor signals from various sensors in the copying machine 28 or the console 29 (temporary fixing command key 29).
a, start key 29b, number of copies display section 29
an input circuit (input interface) 27a that inputs an operation command signal from
, a ROM 27b that stores programs necessary for arithmetic processing of input signals, a CPU 27c that performs predetermined calculations based on the program, a RAM 27d that temporarily stores calculation results and data, and a copy machine that stores the calculation results and data. 28 and an output circuit (output interface) 27e for outputting control signals to various control objects of the copying machine sorter 1 or to the display section of the console 29.

The operation of the above configuration will be explained with reference to FIG. In a copy operation with the temporary fixing command key 29a turned on, A3 size copy paper 21
When the paper is ejected from the copying machine 28, it passes through the guide 3 and is held in the nip 6 between the roll 4a and the roll 5. At this time, the first gate 8 demagnetizes the first solenoid 9 and becomes open (solid line position), and the second gate 12 demagnetizes the second solenoid 13 and becomes open (solid line position). The stopper 18 excites the third solenoid 17 and closes it (the position indicated by the dotted line).
The copy paper 21 is placed in the first pocket 7.
It advances inside and stops at the stopper 18 position. For this reason, the copy paper 2 fed out from the nip section 6
1 enters the first pocket 7 and hits the stopper 18.
When it comes into contact with and stops, the nip portion 10 (roll 4
a, 4b) grips a portion of the copy paper 21 corresponding to the fold line a, folds it in half in the longitudinal direction along the fold line a, and sends it out (FIG. 3A). When the copy paper 21 folded in half enters the second pocket 11 and comes into contact with the stopper portion 11a, the roll 1
The nip portion 15 of 4, 4b grips the portion corresponding to the fold line b, and the paper is sent out while being folded in half in the longitudinal direction along the fold line b (FIG. 3 B and C).
Then, the copy paper 21 is sent to the transport 19 by the transport 16 and conveyed.
When Z-folding the copy paper 21 as described above, when the roller pressure command key 29a of the console 29 provided at the top of the copying machine 28 is turned on in advance, the console signal is input to the control unit 27 and the actuator is driven. The fourth solenoid 24 is driven via the circuit 30, and the elastic roller 22 is brought into pressure contact with the star wheel 20 against the bias of the extension spring. As a result, the copy paper 21 conveyed by the transport 19 passes through the nip portion 31 of the star foil 20 and the elastic roller 22, and as a result, both edges of the Z-folded copy paper 21 as shown in FIG. It is temporarily fixed. The temporarily fixed copy sheets 21 are conveyed upward by the transport 19 and sent to the corresponding sorting turbines 26, respectively. Further, when the copy paper is conveyed in the A direction, the paper is folded other than the Z fold, and then conveyed in the B direction and fed into the sorting turbine 26 by the transport 19 from below.

(Effects of the Invention) As explained above, according to the paper sorting device according to the present invention, one end of a Z-folded copy is connected to the protrusion,
By providing a temporary fixing mechanism that temporarily fixes the other end by pressing it with an elastic body, the storage capacity of each sorting turbine section, which has an extremely narrow storage space, can be increased individually, so that stacking of sheets is not hindered. be able to.

[Brief explanation of the drawing]

FIG. 1 is an overall diagram of a paper sorting device according to the present invention;
FIG. 2 is a perspective view showing the temporary fixing mechanism of the paper sorting device according to the present invention. FIGS. 3A, 3B, and 3C are explanatory diagrams showing changes in copy paper passing through the paper sorting device according to the present invention. Explanation of symbols, 1... Sorter for copying machine, 3...
Guide, 4, 4a, 4b...Folding roll, 5...
Feed roll, 6... Nip portion, 7... Lower pocket, 8... First gate, 9... First solenoid,
10...Nip part, 11...Upward pocket, 11
a...Stopper part, 12...Second gate, 13...
...Second solenoid, 14...Auxiliary folding roll, 1
5...Nip section, 16...Transport, 17
...Third solenoid, 18...Stopper, 19...
...Transport, 20...Starfoil, 21
... Copy paper, 22 ... Elastic roller, 23 ...
...Plunger, 24...Fourth solenoid, 25
... Extension spring, 26 ... Sorter turbine, 2
7...Control unit, 28...Copy machine, 29...Console, 29a...Roller pressure contact command key, 30...
Fourth solenoid drive circuit.

Claims (1)

[Claims] 1. A Z-folding mechanism that automatically Z-folds the paper 21 as the paper is transported;
It is characterized by having a temporary fixing mechanism composed of a protrusion 31 and an elastic body 22 configured to temporarily fix both ends of the folded part, and a plurality of bins 26 that separate and store discharged sheets. Paper sorting device.