JPS60204564A - Bookbinding equipment - Google Patents

Abstract

PURPOSE:To enable the continuous feed of sheets of copying paper even while a cover sheet is fed, by slowly moving the sheets of copying paper sent out from a copying paper, toward a stack until the cover sheet is moved into the stack. CONSTITUTION:Sheets of copying paper continuously sent out from a copying machine 1 are received by rollers 19, 20 so that the sheets are carried to a conveyance speed controller C. The circumferential velocity of a conveyor belt 24 is controlled to a low level to prevent the sheets of copying paper from proceeding to transferring rollers 15, 16, until a cover sheet is sent out from a pinch roller 11 and reaches the transferring rollers. When the cover sheet has passed the transferring rollers 15, 16, the circumferential velocity of the conveyor belt 24 is made high. As a result, the sheets of copying paper and the cover sheet are piled up in prescribed order in a stack.

Description

[Detailed description of the invention] Limb blood! The present invention relates to a bookbinding device that aligns and binds sequentially sent printing papers.

BACKGROUND OF THE INVENTION Conventionally, copy sheets sent out in page order are stacked and aligned and bound into a book, that is, bound with a stapler or punched.

During bookbinding, the pre-printed front and back covers are stacked on copy paper, but while the copy paper is sent continuously at high speed from the copying machine to the binding device, it is transferred from another system. Since it is necessary to supply the front and back covers, it is necessary to interrupt the supply of copy paper when supplying the cover, which poses a problem in that continuous automation of bookbinding is difficult.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of conventional bookbinding machines, and to provide a bookbinding apparatus that can continuously supply copy sheets even when supplying covers.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention that achieves the above objects will be described based on embodiments 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, a bookbinding device 2 is placed adjacent to a copying machine 1.
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 covers 3 are stacked and accommodated on a 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 by a spring 6 toward the paper feed roller rough. Therefore, the cover 3 stacked on the paper feed tray 4 is pressed against the paper feed roller rough.

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. Separating means, e.g. separating roller 8, is provided near the feed roller ruff.
The separation roller 8 is provided with a separation pad 9 and a spring 1.
They are pressed together by o. Separation roller 8 and paper feed roller 7
Similarly, it is supported via a one-way clutch. Adjacent to the separating roller 8 is a feeding means, for example an upper pinch roller 11.
A pinch roller pair consisting of a lower pinch roller 12 and a lower pinch roller 12 is provided.

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 covers sent out by the feed roller ruff pass between a separation roller 8 and a separation pad 9, and if there are multiple covers fed, they are braked by the separation pad 9, and only one cover or back cover passes between the separation roller 8 and the separation pad 9. Nipped against 11.12.

The cover 3 sent out by the pinch roller pair 11, 12 is guided by a guide constituted by an upper guide plate 13 and a lower guide plate 14, and is sent to a delivery section B having an upper delivery roller 15 and a lower delivery roller 1G.

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 .

The copy paper receiving opening 18 is provided with an upper receiving roller 1 as receiving means.
A pair of receiving rollers 9 and 20 are provided. The conveyance speed of the receiving roller is set to be equal to or faster than the copy paper conveyance speed of the copy Ia1.

When the sensor 21 detects that the leading edge of the copy paper sent out from the copying machine 1 has entered the copy paper receiving opening 18, the receiving rerollers 19 and 20 are started to be driven.

A conveying speed adjusting section C is provided near the receiving roller 19.20 for receiving the copy paper sent by the receiving roller 19.20 and adjusting 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,
It has a copy presser foot 25 made of a leaf spring 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, the conveyor belt 2
4 is driven, and the peripheral speed of the conveyor belt is increased by the delivery roller 15,
It is driven by a single motor so that it can be adjusted from the same speed as 16 to as low as about 1730, which is the transport speed of the copying machine 1.

A passage for the delivery rollers 15 and 16 is provided in the delivery part B provided near the end of the delivery side of the conveyance speed adjustment part C, and a guide 2
A branch arm 17 is provided for switching between the passage formed by the first reversing guide 6 and the reversing passage formed by the first reversing guide, that is, the right guide 27 and the left guide 28 made of curved plates. The branching arm 17 connects the transfer rollers 15, 16 and the reversing guide with a pin, and connects the first position shown by the solid line in the figure in which the guide 26 blocks the passage, and the guide 26 between the passage and the transfer rollers 15, 16. It is supported so as to be swingable to switch between a second position shown by a chain line in the figure, which connects the reversing guide and blocks the reversing guide. 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 an upper discharge roller 31 and a lower 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 an operating position where it is directly pressed against the tray belt 36 and a standby position where it is separated from the tray belt 36.

The push plate 37 attached to the tray belt 36 is stopped at a predetermined position of the sensor 59 until the first copy paper size data is sent from the copying machine 111, and the push plate 37 is stopped at a predetermined position of the sensor 59, and the copy paper size data is not sent from the copying machine 1. When data is sent, the discharge roller pair 31.32 is moved by a distance determined by the data
Move to a position far away from Sto Tsunomar 62 near . When a sheet of copy paper is sent out onto the intermediate tray 33 by the discharge roller pair 31 and 32, the leading edge of the copy paper is
58, the tray belt 36 is driven and the push plate 37 moves to the right in FIG. 1 to push the leading edge of the copy paper to the alignment position, and from that position Move back and return to the 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, it is pushed in the direction away from the L-/bar 62, is sandwiched between the tray belt 36 and the feed roller 39, receives the feeding action, is formed as a curved plate, and has a right guide 42 and a left guide 43. It is fed into the finishing section E through the second reversing guide.

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 roller 65 mounted coaxially with the drive roller, and a receiving roller 47 pressed against the drive roller 65. A finishing machine 48 is disposed near the tension roller 46, which is the exit end of the guide belt 44. Like the feed roller 39 of the intermediate stacking section, the receiving roller 47 is swingably supported by an arm, and is moved between a position in pressure contact with the guide belt 44 and a position away from the guide belt 44 by the action of a solenoid or the like (not shown). be able to.

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 can swing 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 belt 44 is also swingable.

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

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

Copy sheets that have been bound through stapler binding, punching, etc. (in this specification, not only the binding work but also punching work is referred to as bookbinding) are discharged into the stack by the guide belt 44 that has moved to the discharge position. It is discharged to 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 may be constructed to be extracted like a drawer, or may be configured to move forward or backward (in the left-right direction in the figure) by about 30+si+, or to move back and forth. This movement has the effect of, for example, shifting the parts of the bulrushes 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, and the finishing machine 48 performs binding operations such as staple binding or punching.
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 of the feeder part A 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,
A set of bound sheets with aligned pages is placed on the paper feed tray 4 of the feeder part A, and all the sheets are sequentially fed from the feeder part A, and a set of books is bound in the finishing part E. Therefore, the feeder part A needs to have a mechanism that can reliably feed copy paper and the like.

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 punching holes, stapling, etc., the branching arm 17 passes through the first reversing guide to the discharge roller 3.
The passage leading to 1 and 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 eject copy paper without so-called bookbinding, branch @17 is switched to the position that opens the path to exit 29, and the paper sent from part A of the feeder is sent to exit 29. 29 to the output tray 30 and the next machine, and the copy paper from the copying machine 1 is sent out from the outlet 29 to the output tray 30 and the next machine. It is also used to feed the cover of particularly thick pages.

Copy sheets that are continuously fed one after another from the copying machine 1 without a break are received by receiving rollers 19 and 20, and then transferred to the conveying speed adjusting section C.
sent to. 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 the conveyor belt 24.

The transport belt 24 depends on the type of mode selected, the number or thickness of bookbinding operations performed by the finishing machine 48, such as stapling 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 placed at the transfer rollers 15, 16, the circumferential speed of the conveyor belt 24 is controlled to be low in order to prevent the copy sheet from advancing onto the transfer rollers 15,16.

When it is driven at this low speed, on the m-feed heald 24, the front part of the succeeding copy paper is placed on the rear part of the preceding copy paper, so that it overlaps like an arrangement of tiles. arranged. Also, make sure that the distance between the leading edges of adjacent copy sheets does not become too small, for example, less than about 15w. It is preferable to control the peripheral speed of the feed belt 24.

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 paper leading edges is about 15 mm, the delivery rollers 15 and 16 can send out two adjacent copies in a separated state without overlapping them.

By transporting the copy sheets fed in at high speed in a stacked arrangement in a shingled pattern, it is possible to take enough time to take the front cover and feed it 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 copies of one copy sheet are sent out from the conveyance speed adjustment section C to the intermediate stacking section, the back cover is sent 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 health 1-36 moves the push plate 37 in the direction of pushing the aligned sheets forward, that is, to the left in the figure. The group of aligned sheets on the intermediate tray 33 is fed out toward the feed roller 39 while being pushed.

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. 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 41 and 43. When the leading edge of the group of copy sheets is detected by the sensor 60, the drive roller 45 is driven by the motor, and when it reaches the position of the receiving roller 47, the receiving roller 47 moves from a standby position away from the Ronilla 65 to the group of copy sheets by the action of a solenoid or the like. is moved to a position in contact with the roller 65, and presses the group of copy sheets against the roller 65. 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 position is a distance al+a2 that is the sum of a preset distance a1 from the contact point P1 between the drive roller 45 and the receiving roller 47 and a positional deviation a2 between the sensor 60 and the point P1. One push plate 49 is on standby.

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
The group of copy sheets can be conveyed by the push plate without being driven by the drive roller 7 and the drive roller 45.

The group of copy sheets is guided by a guide belt 44 and a tray 63 and fed into a notch-shaped entrance of a finishing machine 48. The motor is stopped at the point where the push plate 49 has pushed the group of copy sheets to a position a distance a1 from the position of the positioning member 64 which also serves as a stopper at the entrance. With the group of copy sheets in contact with the positioning member 64 at the entrance of the finishing tllI 148, the push plate 49 is reciprocated by the conveyor belt 44, so that the group of copy sheets aligned at the intermediate stacking section is slightly misaligned during transportation. You can re-align them even if you do. Finished when aligned +8.48
The group of copy sheets placed in the booklet is subjected to binding finishing operations such as perforation or staple binding by the action of the drive roller 50. The conveyor belt and the positioning member constitute an aligning means.

When the bookbinding finishing operation is completed, the return lever 64, which also serves as a positioning member of the finishing machine 48, is actuated by the drive shaft 50 to push out the copy paper from the entrance. The return lever can also be provided separately from the inlet positioning member 64.

Thereafter, the guide heald 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 moved to the guide belt 44.
The paper is pushed out onto the paper discharge tray 52 by the push plate 49 .

As the belt drive motor, a servo motor, a stamping motor, etc. can be used.

The height of the top of a group of copies is detected by a height detection rod 54, and the height of the paper discharge tray is adjusted so that the group of copies being sent 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.

For example, in the case of bound copy sheets, if the stabilized positions overlap, that part will swell up.
The base of the paper discharge tray 52 supported by, for example, a ball is moved back and forth or left and right.

Thanks to the present invention, even if the copy paper from the copy machine is continuously fed to the bookbinding device without reducing the feed speed, it is now possible to appropriately feed the cover by adjusting the speed of the conveyance speed adjustment section. .

[Brief explanation of the drawing]

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. C...Conveyance speed adjustment section E...Finishing section F...Discharge stack section Procedural amendment May 22, 1980 Commissioner of the Japan Patent Office Kazuo Wakasugi 1 Indication of the case 1981 Patent Application No. 59497 2. Name of the invention Bookbinding device 3. Person making the amendment (1. What relationship Patent issue η x 1) (Closed office Other inventors, each column of the detailed description of the invention in the specification, drawing 7, and the content of the amendment (1) Submit a correction application. " has been corrected to "copying machine, etc.". (3) The statement "Pass through,
...is nipped. " is corrected to "Pass 1.7, pinched by pinch roller pair 11.12." (4) The description on page 11, lines 8 to 9, “Stape 2
- In other words, "with a U-shaped needle like a stapler" should be corrected to "with a stapler, etc." (5) On page 11, lines 16 to 18, the statement ``Stapling (referred to as stapler)'' has been corrected to ``stapling, punching, etc. using a stapler.'' (6) On page 12, line 9, the description ``stapler'' has been corrected to ``stitcher''. ('71 Delete the description in lines 5 and 6 of page 12 [can also be used as an extract])〇(Group)
The description on page 13, lines 1 and 2 of “Potchigisu binding” was changed to “
"Paper binding" is corrected. (9) On page 14, lines 8 to 9, the description ``stable (hotshot binding), etc.'' will be corrected to ``stapling, etc.''. (10) The entry "Stableya" on page 15, line 14 will be corrected to "Fushijiya." (11) The statement "Intermediate stacking section...can be transported" from page 19, line 9 to page 20, line 2 will be deleted. (12) The statement on page 20, lines 6 and 7, “The push plate 49 is...
··Stop. " is corrected to "The copy paper group stops at push plate 49." (13) The description “Stapler” on page 20, line 14 will be deleted. (14) The statement "stable" on page 21, line 14 is corrected to "bound." (15) The numbers ``47'' and ``56'' in Figure 1 have been corrected to [74r51J] as shown in the attached figure.

Claims (3)

[Claims] (1) A bookbinding apparatus including a receiving means for sequentially receiving a plurality of printed papers, a stacking means for stacking the received printed papers, and a finishing section having a finishing machine for binding the stacked printed papers into a book, wherein the receiving means and A conveying speed adjusting section is provided between the stacking section, and the progressive conveying speed adjusting section includes a conveying belt whose conveying distance is longer than the length of the copy paper, and means for controlling the speed of the conveying belt. A bookbinding device. (2) The bookbinding apparatus according to claim 1, wherein the conveyor belt is disposed at a position lower in height than the receiving roller. (3) Claims characterized in that the speed of the conveyor belt is controllable between a speed slower than the feeding speed of the receiving means and the same speed as the fastest speed of the finishing section. The bookbinding device according to item 1 or 2.