JP2002220154A - Bookbinding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bookbinding machine capable of folding a bundle of paper sheets in which the predetermined number of paper sheets are overlapped into a plurality of folding forms having different shapes. SOLUTION: The bundle of paper sheets formed by collating the printed paper sheets by a collating machine 21 and overlapping the predetermined number of paper sheets is conveyed in a conveyance passage 14 and is stopped by a stopper 12. A stitcher 11 for stitching the bundle of paper sheets at a predetermined position by a stitching needle is provided to perform stitching processing by a signal from a control part 31. A folding part is composed of a buckle 3, a buckle stopper 4, a plurality of folding rollers 5 to 7, and a folding knife 8 to operate each constituent part of the folding part by signals from the control part 31 to give any folding form of folding in two or folding in three having different shapes to the bundle of paper sheets.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bookbinding machine capable of folding a sheet bundle in which a predetermined number of sheets are stacked in a plurality of folding shapes having different shapes.

[0002]

2. Description of the Related Art In a bookbinding process, a saddle stitching machine that binds a central position to a sheet bundle (booklet) formed by stacking a predetermined number of printed sheets and folds the binding position into two folds is used. May be done. Generally, a binding machine requires various binding methods such as flat binding for binding one edge of a sheet bundle and corner binding for binding one corner of one edge of the sheet bundle. It is configured so that it can also be used for

FIG. 11 is a schematic configuration diagram showing an example of such a saddle stitching machine. In FIG. 11, the saddle stitching machine 50
A stitcher (stepper) 51 for binding a bundle of sheets with a binding staple, a stopper 52 for flat binding (also serving as a corner binding),
A binding portion 54 having a center binding stopper 53, a stopper 55 and a folding knife 56, a pair of folding rollers 57,
And a discharge port 59 for discharging the bound sheet bundle.

The transport path of the sheet bundle includes a first transport section 67, a transport section using a sliding plate 68, a second transport section 69 using a moving belt, a third transport section 70 having a slope, and a fourth transport section. 73 and a transporting section formed by the inclined plate 75.

[0005] The moving belts of the first transport section 67, the second transport section 69, and the third transport section 70 are driven by a motor 7 as a drive source.
4 is driven via a deceleration pulley 76. 60 is a paper feed roller, 61, 62 and 71 are paper detection sensors, 6
Reference numerals 3 and 64 denote solenoids, and reference numerals 65 and 66 denote paper holding pulleys. The operation of each of these members is well known in the technical field, and a detailed description thereof will be omitted. 72
Is a switching gate for switching the transport direction of the sheet bundle;
Is a post-processing device that performs post-processing such as stacking and cutting of a bound sheet bundle.

The stitcher 51 is installed at a fixed position on the transport section by the sliding plate 68, and performs a binding process by driving a binding staple from above in accordance with the binding position of the sheet bundle. For example, when performing saddle stitching, a stapling process is performed by a stapling needle 91 at the center position of the sheet bundle 90 as shown in the perspective view of FIG. For a bundle of sheets bound or flat-stitched other than saddle-stitched by the stitcher 51, the conveyance path is selected in the direction of the inclined guide plate 75 by the switching gate 72, and the post-processing device 80 is discharged from the discharge port 59. To be carried out.

When the saddle stitch is performed on the sheet bundle as shown in FIG. 12, the transport direction of the sheet bundle is selected by the switching gate 72 to the direction of the third transport section 70, and
The sheet bundle is moved from the third transport section 70 to the stopper 5 of the bent section 58.
Sliding down to 5.

[0008] The binding needles 91 and 9 are
1, the saddle stitching position of the sheet bundle 90 that has been saddle stitched
The folding knife 56 of No. 8 is pushed out and folded in the direction of arrow P as shown in the explanatory view of FIG. Next, the sheet bundle 9
Of the folding knife 5 by the pair of folding rollers 57, 57 arranged on the opposite side of the folding knife 56 with respect to the folding knife 56.
6, the back of the sheet bundle 90 pushed out by arrow 6
The sheet bundle 90 is clamped in the Q2 direction to form a folding habit, and the sheet bundle 90 is folded in two.

The saddle stitching machine shown in FIG. 11 performs the binding process on the sheet bundle in this manner, and then performs the two-fold process. This saddle stitching machine imparts a folded shape to the sheet bundle by the folding knife 56 and a pair of folding rollers 57 without using the stitcher 51 for the sheet bundle. Can be performed only.

As described above, by using the saddle stitching machine, it is possible to give a folded sheet bundle formed by stacking a predetermined number of sheets into two. By the way, there are various forms of folding of a sheet bundle other than two folding. For example, there is a case where a sheet bundle of communication documents or the like is folded into three as shown in the perspective view of FIG. 10 and inserted into an envelope. 20x is the first fold, and 20y is the second fold.

[0011]

SUMMARY OF THE INVENTION In a conventional saddle stitcher,
As shown in FIG. 10, there is a problem that a process of giving a three-fold fold to a sheet bundle cannot be performed.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a bookbinding machine which can fold a sheet bundle in which a predetermined number of sheets are stacked in a plurality of folding shapes having different shapes.

[0013]

SUMMARY OF THE INVENTION The object of the present invention is to provide a bookbinding apparatus, comprising: a transport path for transporting a sheet bundle formed by stacking a predetermined number of printed sheets; A stopper provided to stop conveyance of a sheet bundle and a stitcher for binding a predetermined position of the sheet bundle with a binding staple.
A folding section having a folding knife, a plurality of folding rollers,
A fold portion having a buckle and a buckle stopper, and a fold shape given to the sheet bundle can be set in a plurality of different shapes;
A control unit for selecting and setting a binding process or a folding process on the sheet bundle, and selecting the folding process on the sheet bundle by the control unit, and setting the shape set in the folding unit. This can be achieved by providing a configuration in which a folded shape is given to the sheet bundle.

According to a second aspect of the present invention, in the bookbinding machine according to the first aspect of the present invention, the folding section includes a fixed second folding roller and the second folding roller according to a thickness of a sheet bundle. −
The first folding roller that can be moved at a predetermined distance in the lateral direction with respect to the
A third folding roller that can move upward by a predetermined distance with respect to the second folding roller in accordance with the thickness of the folded sheet bundle.
A folding knife disposed between the first folding roller and the second folding roller so as to protrude and retract, and folded between the first folding roller and the second folding roller by the folding knife. A buckle for pulling in the leading end of the sheet bundle, and a buckle stopper for stopping the leading end of the pulled-in sheet bundle at a predetermined position of the buckle.

According to a third aspect of the present invention, in the first or second aspect of the present invention, a collating machine is connected to the conveyance path, and the collated paper bundle is conveyed. Features.

According to the first aspect of the present invention, the control unit can select either the binding process for the sheet bundle or the folding process, and when the folding process is selected, a different shape can be set. Any of a plurality of folded shapes is selected and added to the sheet bundle. Therefore, the binding machine can be used for various purposes by selecting the binding process and the folding shape providing process. Further, since a plurality of folded shapes having different shapes can be given to the sheet bundle, it is possible to respond to various demands of the user.

According to the second aspect of the present invention, a plurality of folding rollers can be provided in the folding section so that the distance between the folding roller and a fixed folding roller can be adjusted according to the thickness of the sheet bundle or the thickness of the folded sheet bundle. Is provided, a predetermined folding shape can be given regardless of the number of sheets stacked.

In the invention according to claim 3, a collating machine is connected to the bookbinding machine. For this reason, the binding process or the folding process can be performed quickly and continuously.

[0019]

Embodiments of the present invention will be described below. FIG. 1 is a configuration diagram illustrating an example in which a collating machine 21 is connected to the bookbinding machine 1. In FIG. 1, reference numerals 2a and 2b denote delivery rollers for carrying the collated sheet bundle into the bookbinding machine 1,
Is a buckle for giving a folded shape to the sheet bundle, and 4 is a buckle stopper. The buckle stopper 4 moves in the arrow U direction along the longitudinal direction of the buckle 3.

5 is a first folding roller, and 6 is a second folding roller.
Reference numeral 7 denotes a third folding roller, and 9 denotes a folding knife. The buckle 3, buckle stopper 4, first, second and third folding rollers 5 to 7 and folding knife 9 constitute a folding part. The first folding roller 5 moves in the arrow X direction (lateral direction) according to the thickness of the sheet bundle. Further, the third folding roller 7 moves in the arrow Y direction (vertical direction) according to the thickness of the folded sheet bundle. The second folding roller 6 is fixed.

The unloading roller 9 and the unloading belt 10 convey the bundle of sheets provided with the folding shape by the folding section in the direction of arrow Z. Reference numeral 15 denotes a carry-out tray. Reference numeral 11 denotes a stitcher for driving a binding staple into a predetermined position of the sheet bundle, which is operated using a mechanism such as a solenoid. Reference numeral 12 denotes a stopper for pressing and aligning the leading end of the sheet bundle carried into the bookbinding machine 1, 13 a guide rod for moving the stitcher 11 and the stopper 12 in the arrow Z direction, 14 a transport path, and 16 a stitcher. 11
This is the exit of the bundle of sheets bound by.

Reference numeral 30 denotes an operation panel installed at a predetermined position of the bookbinding machine, and a control unit 31 is provided. Control unit 31
Is a control signal 4a for adjusting the position of the buckle stopper 4 in the direction of arrow U and moving it; a control signal 5a for adjusting the position of the first folding roller 5 in the direction of arrow X and moving it; −
Control signal 7 for adjusting the position of the roller 7 in the direction of arrow Y and moving
a, a control signal 11a for operating the stitcher 11, and a control signal 12a for operating the stopper 12, respectively.

The control unit 31 controls the stitcher 11 when selecting the binding processing of the sheet bundle.
And does not output the control signals 4a, 5a and 7a. When selecting the folding processing of the sheet bundle, the control signals 4a, 5a, and 7a are output and the control signals 11a
Is not output.

The collating machine 21 has ten paper feed stages 22 in the vertical direction.
a to 22j are arranged, and a predetermined number of sheets are placed on each sheet feed stage. Paper feed rollers 23a to 23
j is provided. 24a-24j is the sending b
Reference numeral 25 denotes a vertical conveyance path, and reference numeral 26 denotes a guide.

The paper 53a placed on the paper feed stage 22a is
It is pulled out by the paper feed roller 23a and
Is transported in the vertical direction. In the same manner, the paper is fed from each paper feed stage to the vertical conveyance path 25, sequentially stacked on the paper 53a, and conveyed vertically while being collated. The bundle of sheets collated in this manner is guided by guide guide 2
6 and is carried into the bookbinding machine 1.

Next, the operation of the bookbinding machine 1 will be described.
2 to 4 are explanatory diagrams illustrating an example in which the binding apparatus 1 performs a binding process on a sheet bundle. As shown in FIG.
1 and a pair of feed rollers 2
a and 2b are carried into the transport path 14. At this time, the stitcher 11 and the stopper 12 are slid by the guide rod 13 and have been moved to a predetermined position in advance.

As shown in FIG. 3, the leading end of the sheet bundle 20 is stopped by the stopper 12, and the ends are aligned. In this position,
The sheet bundle 20 is subjected to flat binding or corner binding at a predetermined location. Thereafter, as shown in FIG. 4, the locking by the stopper 12 is released, and the sheet bundle 20 is discharged from the discharge port 16 to the outside.

In the examples shown in FIGS. 2 to 4, the stitcher 11 and the stopper 12 are slid with the guide rod 13 and moved to a predetermined position in advance. In addition, as for the operation of the stitcher 11 and the stopper 12, for example, when saddle stitching is performed on the sheet bundle 20, the stitcher 11 and the stopper 12 may be moved to different positions by the guide rods 13, respectively.

FIGS. 5 to 7 are explanatory diagrams showing an example in which the bookbinding machine 1 performs a process of giving a folded shape to a sheet bundle. FIG.
As shown in FIG. 5, the sheet bundle 20 collated by the collating machine 21 is
The sheet is carried into the conveyance path 14 from a pair of delivery rollers 2a and 2b. At this time, the stopper 12 is slid by the guide rod 13 and has been moved to a predetermined position in advance. Also,
The buckle stopper 4 is also moved to a predetermined position along the buckle 3 in advance. The position of the buckle stopper 4 is appropriately selected according to the paper size and the folded shape.

When the leading end of the sheet bundle 20 hits the stopper 12, the conveyance is stopped. At this time, the control signal 11a is not sent from the control unit 31, and the stitcher 11 does not operate.

Next, as shown in FIG. 6, the first folding roller 5 moves a predetermined distance in the horizontal direction away from the second folding roller 6 in consideration of the thickness of the sheet bundle 20. The thickness of the sheet bundle 20 is input to the control unit in advance, and the control signal sent from the control unit to the drive mechanism for moving the second folding roller 6 in the horizontal direction indicates the amount of movement of the second folding roller 6. Is set. In this example, the sheet is moved by a distance approximately twice the thickness of the sheet bundle 20. The first folding roller 5 is in the direction of arrow Ra, the second folding roller 6 is in the direction of arrow Rb, and the third folding roller 7 is in the direction of arrow R.
Each rotates in the c direction.

When the folding knife 8 is raised between the first folding roller 5 and the second folding roller 6, the sheet bundle 20 is moved between the first folding roller 5 and the second folding roller 6. The first fold (20x in FIG. 10) is given by the
Drawn inside. Then, the leading end of the sheet bundle 20 folded at the position of the buckle stopper 4 stops.

At this time, the third folding roller 7 moves upward by a predetermined distance in a direction away from the second folding roller 6 as shown in FIG. The amount of movement of the third folding roller 7 is also set by a signal from the control unit in consideration of the thickness of folding of the sheet bundle 20. In this example, the sheet is moved by a distance approximately three times the thickness of the sheet bundle 20. The folding knife 8 is returned to its original position.

Even if the folded leading end of the sheet bundle 20 stops at the position of the buckle stopper 4, the first folding roller 5 and the second folding roller 6 are respectively viewed as indicated by arrows Ra and Rb as described above.
, The sheet bundle 20 continues to rise between the first folding roller 5 and the second folding roller 6.

However, since the leading end of the sheet bundle 20 is stopped at the position of the buckle stopper 4, the sheet bundle 20 is slackened. The slack portion is drawn between the second folding roller 6 and the third folding roller 7, and a second fold (20y in FIG. 10) is provided. That is, between the second folding roller 6 and the third folding roller 7, a folding shape is provided with a thickness three times as large as the sheet bundle 20.

The sheet bundle provided with the first fold 20x and the second fold 20y and given a three-fold fold as shown in FIG. Conveyed by. Then, the sheets are accumulated on the discharge tray 15.

FIGS. 8 and 9 are explanatory views showing an example in which the sheet bundle 20 is given a folded shape. Next, FIGS. 8 and 9
Will be described. In this case, since the buckle 3 is not used, the buckle stopper 4 is moved to the position of the entrance of the buckle 3.

When the leading end of the sheet bundle 20 hits the stopper 12, the conveyance is stopped, and the stitcher 11 does not operate as described above. Next, as shown in FIG. 9, the first folding roller 5 moves a predetermined distance in the horizontal direction at a distance of about twice the thickness of the sheet bundle 20 in a direction away from the second folding roller 6.

The third folding roller 7 also moves upward by a predetermined distance about twice the thickness of the sheet bundle 20 in a direction away from the second folding roller 6. The first folding roller 5 rotates in the direction of arrow Ra, the second folding roller 6 rotates in the direction of arrow Rb, and the third folding roller 7 rotates in the direction of arrow Rc.

When the folding knife 8 is raised between the first folding roller 5 and the second folding roller 6, the sheet bundle 20 is moved between the first folding roller 5 and the second folding roller 6. And a crease is provided. The folded end of the sheet bundle 20 is blocked by the buckle stopper 4 and does not enter the buckle 3.

For this reason, the leading end of the sheet bundle 20 is drawn between the second folding roller 6 and the third folding roller 7, and is conveyed by the ejection roller 9 and the ejection belt 10 while being further creased. Is done. Then, the sheets are accumulated on the discharge tray 15. In this way, the folded sheet is given to the sheet bundle 20.

As described above, in the present invention, by appropriately setting the position of the buckle stopper 4 with respect to the longitudinal direction of the buckle 3, any one of two different folding forms, such as two-fold and three-fold, is formed on the sheet bundle. Can be granted. Further, by adjusting the interval between the first folding roller 5 and the third folding roller 7 with respect to the second folding roller 6, a folding shape can be given according to the thickness of the sheet bundle. it can.

In the example of FIG. 1, the position of the first folding roller 5 is adjusted in the horizontal direction by the control signal 5a from the control section 31, and the position of the third folding roller 7 is adjusted by the control signal 7a. Moving up and down. In the present invention, the first folding roller 5 and the third folding roller 7 can be moved by using the elastic force of a spring.

In this case, the second folding roller 6 in which the first folding roller 5 and the third folding roller 7 are fixed by a spring.
Energize toward. When the force for pushing the sheet bundle between the first folding roller 5 and the second folding roller 6 when the folding knife 8 is raised is set to be larger than the urging force of the spring of the first folding roller 5. The first folding roller 5 is laterally separated from the second folding roller 6.

Next, when the creased sheet bundle passes between the third folding roller 7 and the second folding roller 6, the leading end of the sheet bundle becomes the third folding roller 7. The third folding roller 7 moves upward against the urging force of the spring, and separates upward from the second folding roller 6.

Further, in the example of FIG.
1 are connected to form a folded shape on the sheet bundle collated by the collating machine 21. In the present invention, only the bookbinding machine can be used independently without connecting the collating machine. In this case, the feed rollers 2a and 2b are connected to a sheet bundle stacking section or the like and carry the sheet bundle into the bookbinding machine.

[0047]

As described above, in the invention according to the first aspect, the control unit can select either the binding process for the sheet bundle or the folding process, and the folding process is selected. Sometimes, one of a plurality of folded shapes that can be set in different shapes is selected and given to the sheet bundle. Therefore, the binding machine can be used for various purposes by selecting the binding process and the folding shape providing process. Further, since a plurality of folded shapes having different shapes can be given to the sheet bundle, it is possible to respond to various demands of the user.

According to the second aspect of the present invention, the plurality of folding rollers can adjust the interval between the folding section and the fixed folding roller according to the thickness of the sheet bundle or the thickness of the folded sheet bundle. Is provided, it is possible to give a predetermined folding shape regardless of the number of stacked sheets.

In the invention according to claim 3, a collating machine is connected to the bookbinding machine. For this reason, the binding process or the folding process can be performed quickly and continuously.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an example in which a collating machine is connected to a bookbinding machine according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an example in which binding processing is performed by a bookbinding machine.

FIG. 3 is an explanatory diagram of an example in which binding processing is performed by a bookbinding machine.

FIG. 4 is an explanatory diagram of an example in which binding processing is performed by a bookbinding machine.

FIG. 5 is an explanatory diagram of an example in which a folding shape is given by a bookbinding machine.

FIG. 6 is an explanatory diagram of an example in which a folding shape is given by a bookbinding machine.

FIG. 7 is an explanatory diagram of an example in which a folding shape is given by a bookbinding machine.

FIG. 8 is an explanatory diagram of an example in which another folding shape is given by a bookbinding machine.

FIG. 9 is an explanatory diagram of an example in which another folding shape is given by a bookbinding machine.

FIG. 10 is a perspective view showing a state in which a sheet bundle is folded in three.

FIG. 11 is a configuration diagram of a conventional saddle stitching machine.

FIG. 12 is a perspective view of a saddle stitched sheet bundle.

FIG. 13 is a perspective view illustrating an example in which folding processing is performed on a saddle stitched sheet bundle.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 bookbinding machine 3 buckle 4 buckle stopper 5 first folding reroller 6 second folding reroller 7 third folding reroller 8 folding reknife 11 stitcher 12 stopper 21 collating machine 31 control unit

Claims (3)

[Claims] A transport path for transporting a sheet bundle formed by stacking a predetermined number of printed sheets, a stopper provided in the transport path for stopping the transport of the sheet bundle, and a predetermined position of the sheet bundle are bound. A binding portion having a stitcher for binding with a staple, a folding portion having a folding knife, a plurality of folding rollers, a buckle and a buckle stopper, and capable of setting a folding shape given to a sheet bundle in a plurality of different shapes; A control unit for selecting and setting a binding process or a folding process on the sheet bundle, and selecting the folding process on the sheet bundle by the control unit. A bookbinding machine characterized in that a folding shape is given to a sheet bundle by using the method. 2. The fixing device according to claim 1, wherein the folding portion is a fixed second folding roll.
A first folding roller that can move a predetermined distance laterally with respect to the second folding roller in accordance with the thickness of the sheet bundle, and the second folding roller in accordance with the thickness of the folded sheet bundle. A third folding roller which is movable upward by a predetermined distance with respect to the roller;
A folding knife disposed between the folding roller and the second folding roller, and a tip of a sheet bundle folded between the first folding roller and the second folding roller by the folding knife. 2. The bookbinding machine according to claim 1, further comprising a buckle to be retracted, and a buckle stopper for stopping a leading end of the pulled-in sheet bundle at a predetermined position of the buckle. 3. The bookbinding machine according to claim 1, wherein a collating machine is connected to the transport path, and the bundle of sheets collated by the collating machine is transported.