JPS60183459A - Bookbinding apparatus - Google Patents

Abstract

PURPOSE:To position copy paper groups of various size correctly by driving a guide belt at the finish section then guiding the copy paper groups by means of said guide belt and a tray arranged on said guide belt and carrying to a finish machine thereafter re-arranging the copy paper groups by means of a reciprocal pushboard. CONSTITUTION:A guide belt device is provided between a finish machine 48 at the finish section E and a pre-processing stack means D. The guide belt device is comprised of a guide belt 44 entrained over a drive roller 45 and a tension roller 46, a tray 63 arranged on the guide belt 44, and a pushboard 49 fixed to the guide belt 44 while penetrating through a groove in said tray 63 and projecting upward, and feeds the copy paper groups guided through the guide belt 44 to be driven by a motor and the tray 63 into the notched inlet 64 of finishing machine 48 then moves the copy paper to the position separated by the distance L1 from the stopper position of inlet 64 by means of the pushboard 49. Thereafter, while contacting against the positioning member at the inlet 64 of finishing machine 43, the pushboard 49 is reciprocated to re-arrange the copy paper group and set into the finishing machine 48 to perform bookbinding.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bookbinding device that aligns sequentially sent printing papers and binds them into a book.

Juren Ship 1 In conventional bookbinding equipment, printing paper is stacked and aligned, and the aligned edges are gripped by a gripping means to finish the paper, such as a stapler (a machine that binds with a U-shaped needle like a stapler).
The paper is pulled and moved to the binding position, and the printed paper bound at the binding position is further pulled out by the gripping means.

Therefore, the gripping means must move the printed paper from the alignment position to the binding position, from the binding position to the ejection position, and then return to the alignment position again. For this reason, in conventional devices, after the printing paper is aligned and stacked in the stacking unit, the next printing paper cannot be supplied until it is sent to the finishing machine, so there is a problem that continuous processing is not possible. Means and Works - The disadvantage was that the structure of the machine was complicated. The structure becomes even more complicated when there are a plurality of sizes of printing paper to be processed.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic bookbinding apparatus that solves the above-mentioned problems of conventional bookbinding machines.

[-戊The structure of the present invention that achieves the above object will be explained based on the embodiment shown in the drawings.

In this specification, the expression "printed paper" is used to include not only printed paper from a printing machine but also copy paper made by a copying machine. Furthermore, the expression "bookbinding" is used to include not only the work of binding multiple sheets of paper together, but also the work of punching holes. An example of copying paper produced by a copying machine will be described below as a representative example.

In FIG. 1, the bookbinding device 2 is placed adjacent to the copying machine.
has a feeder part A for supplying either one of the front cover and the back cover or both the front cover and the back cover stacked alternately (hereinafter, the front cover and the back cover will be denoted by the same reference numerals to simplify the explanation) 3.

In the feeder section A, the table IE3 is stacked on the paper feed tray 4. The paper feed table 4 is rotatably supported at one end by a rotating shaft 5. The other end of the paper feed tray 4 is pressed toward the paper feed roller 7 by a spring 6. Therefore, the cover 3 stacked on the paper feed table 4 is pressed against the paper feed roller 7.

The paper feed roller 7 is driven counterclockwise in the figure. The paper feed roller is supported via a one-way clutch, and when the cover 3 on which the paper feed roller 7 is placed is pulled, the paper feed roller 7
rotates freely and does not apply any load to the cover 3. A separation roller 8 is provided near the paper feed roller ruff, and a separation pad 9 is pressed against the separation roller 8 by a spring 10.

Like the paper feed roller 7, the separation roller 8 is also supported via a one-way clutch. A pinch roller pair consisting of a lower pinch roller 11 and a lower pinch roller 12 is provided adjacent to the separation roller 8.

The upper pinch roller 11 is driven by the control section so as to rotate counterclockwise in the figure, and the lower pinch roller 12 is rotated clockwise.

The cover sent out by the paper feed roller 7 passes between a separation roller 8 and a separation pad 9, and if there are multiple covers fed, the separation pad 9 brakes the cover, so that only one cover or back cover is pinched. It is nipped by roller pair 11 and 12.

The cover 3 sent out by the pinch roller pair 11 and 12 is guided by the upper guide plate 13 and the lower guide plate 14,
It is fed into a delivery section B having an upper delivery roller 15 and a lower delivery roller 16.

The bookbinding device 2 has a copy paper receiving port 18 that opens adjacent to the copy paper feed port of the copying machine 1 .

A pair of receiving rollers consisting of an upper receiving roller 19 and a lower receiving roller 20 are provided in the copy paper receiving opening 18. The conveyance speed of the receiving roller is set to be equal to or faster than the copy paper conveyance speed of the copying machine 1.

When the sensor 21 detects that the leading edge of the copy paper sent out from the copying machine 1 enters the copy paper receiving port 18, the receiving rollers 19, 20 start driving.

A conveying speed adjusting section C is provided which receives the copy paper sent by the receiving rollers 19 and 20 and adjusts the conveyance speed of the copy paper.

The conveyance speed adjustment section C includes a drive roller 22, a tension roller 23, a conveyance belt 24 wrapped around both rollers,
A copy presser foot 25 made of a leaf spring is provided so as to lightly touch the upper surface of the conveyor belt 24.

The copy presser foot 25 is supported at the left end in the figure and rests on the conveyor belt 24 due to its own weight.

By rotationally driving the drive roller 22, it is possible to
24 is driven, and the peripheral speed of the conveyor belt is the same as that of the delivery roller 15.
, 16 to a low speed of about 1/30 of the conveyance speed of the copying machine 1.

The delivery section B has a passage from the delivery rollers 15 and 16.
A branching arm 17 is provided that switches between the passage formed by the guide 26 and the reversal passage formed by the first reversal guide, that is, the right guide 27 and the left guide 28 made of curved plates. The branch arm 17 is connected to the delivery roller 15 by a pin.
16 and the reversing guide and blocking the passage by the guide 26.The first position shown by the solid line in the figure connects the iii path and the transfer rollers 15 and 16 by the guide 26 and blocking the reversing guide. It is supported so as to be able to switch and swing between the second position shown by the chain line in the figure. The switching arm 17 is operated by a solenoid (not shown) or the like.

The passage through the guide 26 leads to an outlet 29, through which the copy paper can be discharged from the conveyance speed adjustment section C directly to the paper discharge tray 30 or to the next working device.

A discharge roller pair consisting of a top discharge roller 31 and a bottom discharge roller is provided at the lower end of the reversing guide 27, 28, and discharges the copy paper to the intermediate stacking section.

As shown in FIG. 2, the intermediate stacking section includes an intermediate tray 33 and a driving roller 3 disposed below the intermediate tray 33.
4 and a tray belt 36 wound around a tension roller 35. The tray belts 36 are arranged symmetrically with respect to the copy paper transport center line at predetermined intervals. A push plate 37 that projects upward through a groove formed in the intermediate tray 33 is fixed to the tray belt 36 .

The drive roller 34 is configured to be driven in forward and reverse directions by a single motor.

Above the intermediate tray 33 is the copy presser foot 2 of the transport speed adjustment section.
A presser foot 38 formed similarly to 5 is arranged.

A feed roller 39 is provided opposite the drive roller 34. The feed roller 39 is rotatably supported by an arm 41 that is swingably supported by a support shaft 40 . arm 41
receives a force in a direction that constantly presses the feed roller 39 against the tray belt 36 under the action of a spring (not shown). The arm 41 is connected to the feed roller 3 by a solenoid (not shown) or the like.
9 is switched between a standby position away from the tray held belt 36 and a controlled movement.

The push plate 37 attached to the tray hold 36 stops at a predetermined sensor 59 position until the first copy paper size data is sent from the copying machine 1.
When data on the size of the copy paper is sent from , it moves to a position away from the stopper 62 near the pair of discharge rollers 31 and 32 by a distance determined by the data. When a sheet of copy paper is sent out to the middle tray 33 by the pair of discharge rollers 31 and 32, a predetermined time elapses after the leading edge of the copy paper passes the sensor 5, and then the tray belt 36
is driven, the push plate 37 moves to the right in FIG. 1, pushes the leading edge of the copy paper to the alignment position, and moves back from that position to return to its original position.

This reciprocating motion is repeated for each sheet of paper, and the intermediate tray 33 is sequentially moved.
Align the leading edge and trailing edge of the paper stacked on top. The alignment operation continues until the last copy sheet or back cover of one copy sheet group.

When the stacking on the intermediate tray 33 is completed, the push plate 37 moves to the left in FIG. In this state, the right guide 4 is pushed away from the stopper 62, is sandwiched between the tray belt 36 and the feed roller 39, receives a feeding action, and is formed as a curved plate.
2 and a left guide 43 to the finishing section E.

After sending out the stacked copies, one push plate 37 stops again at a position determined by the paper size and waits for the next group of copies to be fed.

The finishing section E includes a guide belt 44, a drive roller 45 and a tension roller 46 around which the guide belt is wound, a receiving roller 47 that is pressed against the drive roller 45 or the guide belt 44, and an exit end of the guide belt 44. and a finishing machine 48 disposed near the tension roller 46. The receiving roller 47 is swingably supported by an arm in the same manner as the sending roller 39 of the intermediate stacking section.
In addition, the guide belt 4 is
4 can be moved between a pressed position and a separated position.

As shown in FIG. 3, a push plate 49 is fixed to the guide belt 44 in a structure similar to that of the intermediate stacking section, and a tray 63 is disposed above the guide belt 44. It is convenient to provide two push plates 49 at appropriate intervals.

The tension roller 46 is supported by a lever or the like, and is swingable around the axis of the drive roller 45 between a position shown by a solid line in the figure and a lower discharge position shown by a chain line. Therefore, the guide bell 1-44 is also swingable.

The finishing machine 48 has a function of binding paper with a U-shaped needle like a stapler, and/or a function of punching holes, and either one of the functions is operated by a drive shaft 50.

A guide plate 51 is provided at the entrance of the printer 48 so that the stacked papers can be fed smoothly into the printer 48 by the guide belt 44.

The guide belt 44 moves the copy paper to the ejection position after it has been bound. It is discharged to the discharge stack section F.

The ejection stack section F has an ejection tray 52 for stacking papers, and a height detection lever 54 for detecting the height of the upper end surface 53 of the paper stacked on the ejection tray 52.

The discharge tray 52 can be constructed to be extracted like an extractor, or can be configured to move forward or backward (in the left-right direction in the figure) by about 30 m, or to move back and forth. This movement, for example, has the effect of shifting the bosotigis parts so that they do not overlap.

It is also possible to sequentially lower or raise the discharge tray 52 by detecting the height of the copy paper using the height detection lever 54.

The present invention will be described in detail.

When the document start button of the document supply device of the copying machine 1 is pressed, the bookbinding device 2 first starts supplying the cover,
Thereafter, copy sheets are sent from the copying machine 1, and when a predetermined number of copies have been sent, a back cover is supplied again and the sheets are stacked and aligned one after another in the intermediate stacking section. The first group of copy sheets arranged together with the cover is sent to the finishing section E, where the finishing machine 48 performs bookbinding operations such as staple binding or perforation.
Thereafter, it is discharged to the discharge stack section F.

This will be explained in more detail below.

When binding a book, there are cases where both the front and back covers are required, and there are cases where only one of the front and back covers is required, but which mode to select can be specified using the selection button. .

If a cover is required, the presence of a cover is detected by the sensor 55 before the first page of copy paper is sent from the copying machine 1 to the intermediate stacking unit, and the cover is placed in the intermediate stacking unit. send to. For this purpose, the paper feed roller 7 to a part of the feeder is driven at the timing when the cover passes through the delivery section B, at least before the first page of copy paper reaches the delivery section B.

Since paper thicker than copy paper is generally used for the front and back covers, the feeder part A needs to have a mechanism that can reliably feed thick paper. In addition, when the bookbinding device 2 is used alone,
By placing a set of bound sheets with aligned pages on the paper feed table 4 to feeder part A, all the sheets are fed one after another from feeder part A, and one set of books is bound in finishing part E. Therefore, the feeder part A needs to have a mechanism that can reliably feed copy paper and the like.

13- The cover sheet is sent out by the rotation of the paper feed roller 7, and is delivered to the delivery rollers 15 and 16 of the delivery section B.

When the bookbinding device 2 is designated by a push button to perform bookbinding operations such as hole punching and stable binding (Bosotigis binding), the branch arm 17 passes through the first reversing guide to the discharge roller 3.
], the passage leading to 32 is open. Therefore, the cover is placed on the intermediate tray 33 in the intermediate stacking section by the discharge rollers 31 and 32, and aligned at a predetermined position by the push plate 37.

When it is desired to perform processing by interruption or to discharge copy sheets without so-called bookbinding, the branch arm 17 is switched to a position that opens the passage to the outlet 29, and the sheets fed from the feeder part A are sent out from the outlet 29. Exhausted from 29]
- The copy paper from the copying machine 1 is sent out to the tray 30 and the next machine, and from the exit 29 to the discharge tray 30 and the next machine. It is also used to feed the cover of particularly thick pages.

The copy sheets 14-, which are continuously fed from the copying machine 1 one after another without any break, are received by receiving rollers 19 and 20 and sent to the conveyance speed adjusting section C. The peripheral speed of the receiving rollers 19 and 20 is the same as the conveying speed of the copying machine 1 or several times faster than that.

Even if the copy paper is curled upward, it is reliably guided by the copy presser foot 25 and placed on one of the transport healds 24.

The conveyor belt 24 depends on the type of mode selected, the number or thickness of binding work performed by the finishing machine 48, such as stabilization or punching, and whether a cover is attached or not.
The circumferential speed of is selected.

In the cover mode, if the copy paper activates the sensor 21 before the sensor 56 detects that the cover has been sent out by the pinch roller 11 and the sensor 57 detects that the cover has passed the delivery rollers 15 and 16. When the cover is at the transfer roller 15.16, the circumferential speed of the transport heald 24 is controlled to be low in order to prevent the copy paper from advancing onto the transfer roller 15.16.

When driven at this low speed, the following copy paper is overlapped on the conveyor belt 24 so that a portion of the front part of the following copy paper is placed on the rear part of the preceding copy paper, so to speak, like an arrangement of tiles. are arranged. It is preferable to control the circumferential speed of the conveyor bell 1-24 so that the distance between the leading edges of adjacent copy sheets does not become too small, for example, about 15 m or less.

If the paper leading edge interval is too short, the two sheets of copy paper will remain overlapped and be sandwiched between the delivery rollers 15 and 16, which is not preferable. When the distance between the leading edges of the sheets is about 1511, the delivery rollers 15 and 16 can send out two adjacent sheets of copy paper in a separated state without overlapping.

By transporting the copy sheets fed in at high speed in a stacked arrangement in a shingled pattern, sufficient time can be taken to feed the front cover to the intermediate stacking section.

After the sensor 57 detects that the cover has passed the delivery rollers 15 and 16, the peripheral speed of the conveyor belt 24 is gradually increased until it reaches the same speed as the delivery rollers 15 and 16.

When a predetermined number of copy sheets as one set are sent out from the conveyance speed adjustment section C to the intermediate stacking section, the back cover is fed in. At this time, the peripheral speed of the conveyor belt 24 is reduced at the stage of receiving the next set of copy sheets, and the conveyor belt 24 waits for time to feed the back cover and the next set of covers. If the back cover is not needed, the machine waits for the time it takes to feed the next cover.

The discharge rollers 31 and 32 sequentially stack the sheets in an inverted state on the intermediate tray 33 in the intermediate stacking section. At this time, each sheet is aligned each time it is fed by a reciprocating push plate 37.

By inputting the paper size in advance, the length of the reciprocating movement of the push plate 37 is selected.

If necessary, both edges of the paper sheets can be aligned using alignment plates of a similar structure or simple guides.

When it is confirmed that the last copy sheet or back cover of a set of sheets has been fed, the tray belt 36 moves the push plate 37 in the direction of pushing the aligned sheets forward, that is, to the left in the figure. Then, the group of aligned sheets on the intermediate tray 33 is pushed and sent out toward the sending roller 39.

The tray belt 36 may be provided with only one press plate 37 in its circumferential direction, or may be provided with two or more press plates 37 at predetermined intervals, as required.

When it is confirmed that the group of copy sheets has passed the position of the feed roller 39, the arm 41 is moved, and the feed roller 39 is moved from a position away from the tray belt 36 to a position where it presses the sheets toward the tray belt 36. Then, the group of copy sheets is sent out by a sending roller 39 and a tray belt 36.

The group of copy sheets is fed into the finishing section E by inverting the entire group of copy sheets aligned by the second reversing guides 42 and 43. When the leading edge of the group of copy sheets is detected by the sensor 6o, the driving roller 45 is driven by the motor, and when it reaches the position of the receiving roller 47, the receiving roller 47 is moved from the standby position 18- away from the guide belt 44 by the action of a solenoid or the like. is moved to a position in contact with the set of copy sheets, and presses the set of copy sheets against the guide belt 44. The receiving roller 47 is driven in synchronization with the driving roller 45 even when the receiving roller 47 is not in contact with the receiving roller 47 .

When controlling the tray belt 36 in the intermediate stacking section, the distance 11 + I12 is the sum of the preset distance 11 from the contact point P1 between the drive roller 45 and the receiving roller 47 and the positional deviation L2 between the sensor 60 and the point P1. One push plate 49 is waiting at the position.

A sensor 61 is provided at a selected position corresponding to sensor 59 in the intermediate stacking section.

When the motor is turned on with the leading edge of the copy paper group reaching the sensor 60, when the rear end of the copy paper group passes point P1, the push plate 49 arrives immediately behind the rear end, and the receiving roller 4
7 and the drive roller 45 (although the group of copy sheets can be conveyed by the push plate).

The group of copy sheets is guided by a guide belt 44 and a tray 63 and fed into a notch-shaped entrance 64 of a finishing machine 48. Push plate 49 to a position a distance L1 from the stopper position of the entrance 64
The motor stops at the point where the machine pushes the copy paper group. By reciprocating the push plate 49 while the group of copy sheets is in contact with the positioning member at the entrance 64 of the finishing machine 48, even if the group of copy sheets aligned at the intermediate stacking section is slightly shifted during transportation, it will be re-adjusted. You can rearrange it. The group of copy sheets set in the finishing machine 48 in an aligned state undergoes bookbinding finishing work such as hole punching or staple binding by the action of the drive roller 50.

When the binding finishing operation is completed, the return lever of the finishing L mechanism 8 is actuated by the drive shaft 50 to push out the copy paper from the inlet 64. The return lever can also act as a positioning member for the inlet 64.

Thereafter, the guide belt 44 moves to the position indicated by the chain line in the figure,
The guide belt 44 is driven and the group of copy sheets is guided by the guide bells 1 to 4.
The paper is pushed out onto the ejected paper l/ray 52 by the push plate 49 of No. 4. As the belt drive motor, a servo motor, a stepping motor, etc. can be used.

A height detection rod 54 detects the tenth height of a group of copies, and the height of the paper discharge tray is adjusted so that the group of copies being fed can be accurately discharged. For this reason, the paper discharge tray 52 is supported by, for example, a pantograph mechanism, and is configured to be able to freely move up and down.

If the stabilized positions of the bound copy sheets overlap, that part will swell up, so to prevent this, the paper ejection tray 52 is moved each time a group of copy sheets is sent, e.g. A table supported by a pole or the like is moved back and forth or left and right.

According to the present invention, a group of copy sheets is conveyed to a finishing machine by a belt, so that copy papers of different sizes can be cented while being accurately positioned in a finishing machine without requiring a particularly complicated structure. The copy paper can be accurately conveyed and aligned without having to slide the copy paper diagonally down as in conventional methods, and the device is compact because it can be used as a guide for the copy paper group, an alignment device, and an ejection member. It became possible to reduce the cost to 21-.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram for explaining the apparatus according to the present invention, FIG. 2 is a partial side view of the intermediate stacking section, and FIG. 3 is a partial side view of the guide belt of the finishing section. B... Conveying speed adjustment section (accepting means) D... Intermediate stacking section (stacking means) E.
...Disposal section F...Discharge stack section]...Copy machine
2... Bookbinding device 44... Guide belt 45... Drive roller 46...
・Tension roller 48... Finishing machine 49... Push plate 63... Tray agent Patent attorney Takeshi Ito -22=

Claims (1)

[Claims] In a bookbinding apparatus that includes a receiving means that sequentially receives a plurality of printed papers, a stacking means that stacks the received printed papers, and a finishing section that has a finishing machine that binds the stacked printed papers, the finishing section has a finishing machine and a finishing section. -1- A guide belt device provided between the machine and a stacking means as a pre-processing thereof,
The guide belt device includes a guide belt wrapped around a drive roller and a tension roller, a tray placed on the guide belt, and a tray that is fixed to the guide belt and protrudes to one side by -1 through a groove provided in the tray. 1. A bookbinding device, comprising: a push plate, the drive belt being connected to a reciprocating motor;