JP2013184254A - Stitcher device for saddle stitch bookbinding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easy-to-handle stitcher device for saddle stitch bookbinding capable of automatically striking, in an optimum condition, a stitcher into a stacked quire correspondingly to a thickness of the quire.SOLUTION: There is provided a stitcher device 20 which is comrised of: a base frame 21; a slider 25 mounted on the upper part of the front face of a slider body 23 fixed on the base frame 21 by a shaft member 22, in a manner capable of reciprocating in the right-and-left direction via a supporting rod 24, and having a cam mechanism capable of reciprocating in the right-and-left direction; and a stitcher body 26, mounted on the slider 25, capable of reciprocating in a vertical direction with the cam mechanism of the slider 25. A clincher 29, disposed below the stitcher body 26, for saddle stitching a quire stacked body with a wire in cooperation with a quire guide 28 of the stitcher body 26, is configured to automatically move vertically according to the thickness of the quire stacked body to be saddle-stitched.

Description

This invention relates to a saddle stitch bookbinding machine for producing saddle stitch bookbinding such as weekly magazines and pamphlets, and more particularly, to a stitcher device (wire stitching device) for performing saddle stitching with a wire in a saddle stitch bookbinding machine, The present invention belongs to the technical field related to the saddle stitch binding machine.

Saddle binding is a method of manufacturing saddle-stitched books such as weekly magazines and pamphlets.
The saddle stitch bookbinding apparatus used for such saddle stitch bookbinding sequentially stacks signatures supplied from a plurality of signature supply devices on a support plate having a reverse V-shape as viewed from the side, which constitutes the transport device.
After that, the signature stack placed on the support plate is conveyed to a stitcher device by a pusher provided in the gathering chain, and the back of the signature stack is bound with a wire. And
Next, the obtained saddle-stitched book is supplied to a finishing cutting device such as a three-sided cutting machine and cut into the top and bottom to make a complete saddle-stitched book, which is widely used.

  A conventional stitcher device 1 for saddle stitch binding will be described schematically. As shown in FIG. 4, a stitcher body 5 attached to a slide body 3 attached to a base frame 2 via a support rod 4; The support plate 6 is transported below the stitcher body 5 and the clincher 7 is disposed so as to be positioned at the center of the transport plate 6 that has been transported.

  Although not shown, the stitcher body 5 is attached to the slide body 3 reciprocating left and right so as to be movable up and down by a plate cam, and after cutting a separately supplied wire and bending it into a U shape, A saddle-stitched book is prepared by punching into a signature stack (not shown) held on the support plate 6 and bending the leading end portion to perform saddle stitching.

  In such a conventional stitcher device 1, in order to drive a wire into the signature stack and to saddle-stitch it completely and nicely, the stitcher body 5 is determined according to the thickness of the signature stack and the thickness thereof. It is extremely important to adjust the distance between the signature guide 8 at the lower end of the clincher and the clincher head 9 at the upper end of the clincher 7 that holds the signature stack, and this adjustment is absolutely necessary before the start of saddle stitching. It was.

  The conventional means employed for this purpose is to move the clincher 7 positioned at the center of the support plate 6 being conveyed up and down depending on the thickness of the signature stack that is saddle-stitched. In this way, the position (height) of the clincher head 9 is adjusted.

Specifically, as shown in FIG. 4, the adjustment / fixation is performed by attaching a clincher receiver 10 to the lower front portion of the slide body 3 that is pivotally supported by the base frame 2. By rotating the handle 11 to the right or left, the position of the clincher 7 arranged to be movable up and down with respect to the clincher receiver 10 is adjusted and fixed within a range of 1 to 7 mm in the vertical width. is there.
Accordingly, it is necessary to operate and adjust / fix the handle 11 each time the thickness of the signature stack to be saddle stitched is different.

  In addition, it has been required to consider the descending position of the signature guide 8 and the length of the wire used for saddle stitching.

That is, in the conventional stitcher device 1, a saddle-stitched body that forms a saddle-stitched book such as a weekly magazine or pamphlet to be saddle-stitched, in particular, a saddle-stitched book having different thicknesses, is formed using the same stitcher device 1. In doing so, the saddle stitching operation was temporarily stopped, and the setting could not be made unless the condition setting was performed each time for saddle stitching the next signature stack.
In addition, although the number of saddle-stitched books has increased, the number of issued copies has been decreasing, and switching has occurred frequently, and bookbinding efficiency has been significantly reduced.

There have been many proposals for various improvements and improvements regarding the signature supply device, signature conveying device, stitcher device, finishing cutting device, and the like constituting the conventional saddle stitch bookbinding device.
Among those proposals, the following can be exemplified by referring to the improvement / improvement proposal of the stitcher device.

  For example, in Japanese Patent Application Laid-Open No. 09-48184 (Patent Document 1), it is apparent that the conventional stitcher device has to rely on the skill and skill of the skilled worker for the position of the wire in the saddle stitch book having different forms. I have to.

  Furthermore, it is pointed out that the adjustment took a considerable amount of time, and the apparatus stopped for a long time every time the standard of the printed material was changed, resulting in a problem of a decrease in production efficiency.

Furthermore, the adjustment is such that the wire driving position is determined by the visual observation of the operator, and the wire is not necessarily driven at an accurate position.
Therefore, it is pointed out that there are problems such as repeated fine adjustments and waste of signatures, and the following proposals have been made to solve these problems.

The proposal pushes the upstream side of the stacked signatures with a chain pusher.
The signature guide is arranged at a distance from the pusher to the downstream side by the cut-off dimension of one side on the upstream side of the signature and the paper edge-side wire driving dimension of the printed matter.
This is a saddle stitch bookbinding method in which a wire is driven into the back portion of the signature, and the signature is cut in three directions while leaving the back portion.

  As such a device, a pusher that contacts the upstream side of the signature hung on the conveyance rail, pushes the signature, and runs along the conveyance rail, and above the conveyance rail, The apparatus includes a slider that runs parallel to the chain conveyance direction, and an actuator that moves the stitcher body mounted on the slider forward and backward in the chain conveyance direction together with the slider.

  Further, in Japanese Patent Laid-Open No. 2002-113967 (Patent Document 2), since the number of sets of wires to be driven is determined in advance in the conventional stitcher device, the wires are driven in with the change in the form of the saddle stitch book to be bound. When the number of sets fluctuates, it is pointed out that there is a problem that it cannot be easily dealt with and the facility flexibility is poor.

For this reason, in Patent Document 2, a stitcher body is added on the line of the saddle stitch bookbinding apparatus, and a drive mechanism that enables the stitcher to be driven is provided. Has proposed a stitcher device that can flexibly meet the specifications.

JP 09-48184 A (Claim 1, paragraph 0004) JP 2002-113967 A (paragraphs 0004 to 0005)

  The above-mentioned improvement proposals are about how to rationally set the wire driving position and how to flexibly cope with fluctuations in the number of wire driving sets. .

However, the stitcher device in the saddle stitch bookbinding machine is naturally required to be better in terms of performance and mechanism in the same manner as other various devices.
Therefore, a problem to be improved has arisen in the stitcher device for saddle stitching due to the thickness of the signature laminate into which the wire is driven.

  In this stitcher device, as shown in Patent Documents 1 and 2, a wire formed by cutting a straight wire into a predetermined length and bending it into a U-shape like a staple of a stationery is stapled. In the same way as above, after piercing inward from the top (outside) of the signature stack, bending it using the clincher head 9 located inside the signature stack, the wire is folded in half with the pressure applied from above and below. The signature stack is saddle-stitched.

  In order to drive the wire into the signature stack with these stitcher devices and perform saddle stitching perfectly, the lowered position of the signature guide 8 arranged at the lower end of the stitcher body 5 (wire crimping position), the signature Adjusting the distance between the upper position of the laminate (the front surface of the signature stack) and the lower position (the back surface of the signature stack, in other words, the position of the clincher head 9) is an important requirement. Even if it is too close, you cannot get a saddle stitch in a satisfied state.

  Therefore, in the conventional stitcher apparatus, the above-mentioned interval adjustment is performed by adjusting the clincher 7 that holds the signature stack according to the thickness of the signature stack based on the past results and knowledge. It has been dealt with by moving it up and down manually.

This coping method does not pose a major problem when binding a large number of saddle-stitched books under the same thickness of the signature stack to be saddle-stitched.
However, since a wide variety of printed materials are required, and the thickness of the signature stack is various, the saddle-stitched book with different thickness of the signature stack is dedicated to the signature stack having a specific thickness. This is dealt with by introducing a machine or adjusting / switching the intervals between the signature guide 8 and the signature stack and the clincher head 9 in the stitcher device each time.

As one of the solutions, Patent Document 2 proposes to increase the stitcher body 5.
Although this method of adding the stitcher body 5 is effective for a variation with a small variation such as a variation in the number of sets of wires as in Patent Document 2, the number of pages of the saddle stitch book and the variation in paper quality When the number of fluctuations is large, such as the thickness of the signature stack produced by the above, it is not always effective, and it is not advantageous in terms of cost.

In view of the present situation, the present invention can cope with a saddle stitch bookbinding in which the thickness of the signature stack to be saddle-stitched is different by a single stitcher device, and further to the thickness of the signature stack. Accordingly, it is an object of the present invention to provide an easy-to-handle stitcher device capable of automatically driving a wire into an optimally stacked signature.

In order to achieve the above object, the invention according to claim 1 of the present invention provides:
A stitcher body that is equipped with a wire for saddle stitching at the tip, and can be reciprocated and moved up and down,
A clincher which is arranged below the stitcher body so as to be movable up and down, protrudes from a conveying plate holding the signature stack, and saddle-stitches the signature stack with a wire in cooperation with a signature guide arranged on the stitcher body. Is the main component,
The clincher is
The stitcher device for saddle stitching is configured to automatically move up and down in accordance with the thickness of the signature stack to be saddle stitched.

The invention according to claim 2 of the present invention is
The stitcher device for saddle stitch binding according to claim 1,
The clincher is
The vertical position has a function of being automatically controlled within a certain range by an urging force of an elastic body provided on the bottom surface portion of the clincher holding member.

The invention according to claim 3 of the present invention is
The stitcher device for saddle stitch binding according to claim 1,
The clincher is
The vertical position has a function of being automatically controlled within a certain range by the pressure generated by the air cylinder attached to the bottom surface of the clincher holding member.

The invention according to claim 4 of the present invention is
The stitcher device for saddle stitch binding according to claim 2,
The elastic body is
A metal spring,
It is interposed between the bottom surface of the clincher holding member and a spring receiver provided on the slide body that supports the clincher holding member so as to move up and down.
The clincher holding member is in contact with a stopper attached to the slide main body when the saddle stitching operation is not performed.

The invention according to claim 5 of the present invention is
The stitcher device for saddle stitching according to claim 4,
The metal spring is
The clincher is externally mounted on a shaft rod provided between a bottom surface portion of the clincher holding member and a spring receiver attached to the slide body, and an urging force is controlled by an adjustment nut provided on the shaft rod. The upper and lower positions are automatically controlled within a certain range.

The invention according to claim 6 of the present invention is
In the stitcher device for saddle stitch bookbinding according to any one of claims 1 to 5,
The clincher is
The clincher holding member is integrally provided via a clincher support plate.

The invention according to claim 7 of the present invention is
In the stitcher device for saddle stitch bookbinding according to any one of claims 1 to 6,
The stitcher device
When the thickness of the signature stack that has been transported and does not match the normal thickness registered in the control device, it will not be saddle stitched by the instruction from the control device. It has the function to process as follows.

  The stitcher device for saddle stitch bookbinding according to the present invention has a clincher arranged in a support plate that has been conveyed when saddle stitching a conveyed signature stack, and a slide main body constituting the stitcher device for saddle stitch bookbinding. On the other hand, since it is configured to move up and down within a certain range by the urging force of the elastic body or the pressure generated by the air cylinder, it corresponds to the pressure generated by the saddle stitching operation that the signature guide moves up and down. The clincher automatically moves up and down, and the signature stack can be appropriately saddle-stitched.

  In particular, in the present invention, even if the thickness of the signature stack is changed, the clincher itself is automatically lowered in response to the pressure generated by the saddle stitching operation of the stitcher body, and holds the clincher at the optimum position. When the pressure disappears, the pressure rises and returns to a predetermined position. Therefore, even if the type of the signature stack is different, continuous saddle stitching can be performed, and the excellent workability of the stitcher device can be achieved. Is.

  At the same time, in the conventional stitcher device for saddle stitch bookbinding, the work of manually adjusting the interval between the stitcher body, the signature stack and the clincher every time the type of signature stack to be saddle stitched is different. The work efficiency can be greatly improved.

  Further, the stitcher device for saddle stitch binding according to the present invention adjusts the biasing force of the elastic body and the generated pressure by the air cylinder when the thickness of the signature stack is about 1 to 3 mm. When the distance between the guide and the clincher head is determined, it is not necessary to change the distance in accordance with the change in thickness.

If the thickness of the signature stack is out of the preset range, if an elastic body is used, use an air cylinder by adjusting with an adjustment nut that controls the urging force of the elastic body. If this is the case, it can be dealt with by adjusting the generated pressure, so that it is excellent in practical effects such as extremely easy handling.

It is a side view which shows an example of the stitcher apparatus for saddle stitch bookbinding concerning this invention. It is a front view of the principal part of the stitcher apparatus for saddle stitch bookbinding in FIG. It is explanatory drawing which shows the principal part of another Example. It is a side view which shows the outline of the conventional stitcher apparatus for saddle stitch bookbinding.

Hereinafter, an example of the stitcher device for saddle stitching according to the present invention will be described in detail with reference to the accompanying drawings.
In addition, this invention is not limited only to the Example described below, A various change can be added in the range which does not change the summary of invention.

A stitcher device 20 shown in FIG. 1 is mounted on a base frame 21 and an upper front portion of a slide body 23 fixed to the base frame 21 by a shaft member 22 via a support rod 24 so as to be reciprocally movable in the left-right direction. The slider 25 has a cam mechanism that can reciprocate in the left-right direction, and a stitcher body 26 that is attached to the slider 25 and can reciprocate in the vertical direction by the cam mechanism (not shown) of the slider 25.

The stitcher body 26 has a signature guide 28 for guiding the signature stack at the tip of the stitcher that moves up and down and for saddle stitching with a wire.

  The stitcher body 26 is moved up and down by a cam mechanism (not shown) provided on the slider 25 while moving in parallel with the slider 25 along with the conveying speed of the signature stack, and the signature guide 28. A wire (not shown) supplied to the wire is cut, the wire guide 28 is pressed by the signature guide 28, and the signature stack is saddle stitched.

  The signature guide 28 is arranged to face a clincher head 30 of a clincher 29 supported by the slide body 23 so as to be movable up and down.

  On the other hand, the support plate 31 for hooking the signature stack conveyed from the signature stack conveying device is arranged in an endless shape and moves in two parallel strips 31a, 31a, and this chain. The guide rails 31b and 31b for supporting 31a and 31a, and two plate-like plates 31c and 31c formed in a C shape in a side view for holding a signature, the clincher 29 includes the two clincher 29 It arrange | positions so that it may be located in the center part of plate-shaped plates 31c and 31c.

  The leading end of the wire guided by the signature guide 28 of the stitcher main body 26 is bent at the uppermost inner end of the support plate 31 in cooperation with the signature guide 28 to be saddle stitched. A clincher head 30 is provided for the purpose.

As is apparent from FIG. 1, the base end portion of the clincher 29 is fixed to the clincher holding member 32 via a support plate 29a.
The clincher holding member 32 is attached to the receiving member 33 that protrudes in the horizontal direction at the lower front surface of the slide body 23 so as to be movable up and down.

  In the stitcher device 20, the present invention is characterized in that the clincher 29 is automatically saddle-stitched at all times by automatically moving the clincher 29 up and down according to the thickness variation of the signature stack. To do.

  The means for automatically moving the clincher 29 up and down according to the thickness variation of the signature stack includes, specifically, means for using the biasing force of the elastic body and means for using the generated pressure of the air cylinder.

First, the means for using the urging force of the elastic body will be specifically described.
The receiving member 33 is provided with a spring receiver 34 having a reverse L-shape in a side view at the lower portion of the tip thereof, and a support plate 29a erected on the clincher holding member 32 is loosely fitted at the upper portion thereof. A stopper 35 that is held in a state is integrally provided.

Therefore, a spring 37 is interposed as an elastic body on a shaft rod 36 provided vertically between the bottom surface portion of the clincher holding member 32 and the upper surface of the spring receiver 34 so that the clincher holding member 32 is always upward ( It is biased toward the support plate 31 side.
The adjustment of the urging force is performed by an adjustment nut 36 a provided at the upper part of the shaft rod 36.

  Note that the clincher head 30 at the top of the clincher 29, which is always tensioned upward by the urging force of the spring 37, is a bolt 35a attached to a stopper 35 integral with the slide body 23 on which the support plate 29a is loosely fitted. Is controlled to move up and down within a certain range.

The stitcher device 20 having such a configuration allows the clincher head 30 to be positioned at the top between the plate-like plates 31c and 31c even when there are no signatures on the C-shaped plate-like plates 31c and 31c constituting the support plate 31. The biasing force of the spring 37 is adjusted so as to protrude from the gap.
That is, the clincher head 30 abuts against the stopper 35 by the urging force of the spring 37, and further extension is suppressed, and the upward movement of the clincher 29 is also fixed, so that the clincher head 30 reaches the highest rising position.

  In order to saddle-stitch a signature stack (not shown) with this stitcher device 20, the stitcher body 26 cuts the wire supplied from a wire supply device (not shown) into a predetermined length, The wire is bent into a letter shape and driven into the signature stack supported by the plate-like plates 31 c and 31 c of the support plate 31 via the signature guide 28.

  The U-shaped wire that has penetrated the signature stack contacts the clincher head 30 that holds the signature stack at a predetermined height position substantially at the center of the C-shaped support plates 31c, 31c, and the stitcher body. The folding direction is determined by the pressure from 26 and the repulsive force of the spring 37 via the clincher holding member 32, and the saddle stitching is performed by bending.

The wire bent into the U-shape is concentrated by the wire driving operation pressure from the stitcher body 26 when both ends of the wire come into contact with the signature stack supported by the clincher head 30. Therefore, the signature stack can be easily punched out.
The tip of the wire whose both ends have penetrated the signature stack is subjected to the repulsive force of the spring 37 in a concentrated manner and bends along a recess (not shown) formed in the clincher head 30. Surely bind.

  The repulsive force of the spring 37 is adjusted in consideration of the operation pressure of the stitcher body 26, and specifically, it is performed by the adjusting nut 36a shown in FIG.

In addition, this adjustment forms a normal saddle-stitch book, for example, as long as a normal signature laminate having a thickness of about 1 to 3 mm is handled, once adjusted, even if the thickness varies within the range. There is no need to readjust.
Even if the thickness of the signature stack is changed by changing the saddle stitch book, it is not necessary to readjust at the normal thickness, so that the saddle stitching operation can be continuously performed.

  Furthermore, if the maximum position of the clincher head 30 is adjusted once according to the thickness of the signature stack to be saddle-stitched, it is not necessary to readjust normally even if the thickness fluctuates. Therefore, the saddle stitching operation is facilitated.

  The stitcher device 20 according to the present invention continuously stitches signature stacks having different thicknesses, and continuously binds saddle-stitches having different thicknesses that have no problem with the saddle stitching portion. Compared with the conventional stitcher device, which can be selected by visual judgment of the appearance, thickness gauges that measure the thickness of the signature stack are an important quality control element, and are not good due to the signature missing or heavy signature. It is necessary to manage non-defective products more strictly.

  To measure the thickness of the signature stack and select defective products, install a thickness gauge on the saddle stitch bookbinding machine and control the operation of the saddle stitch bookbinding machine to manage defective products. The machine (not shown) stores the type of saddle stitch book to be saddle-stitched and bound by the stitcher device 20, in particular, the thickness and the number of bookbinding, and based on this, the thickness of the signature stack to be saddle-stitched is determined. It is necessary to provide a function for detecting abnormalities and eliminating defective products.

  Since the thickness measuring device (not shown) is for measuring the thickness of the signature stack to be saddle stitched and comparing the thickness with a previously stored thickness, the stitcher device It is attached to or integrated with.

  Furthermore, the controller that stores the type of saddle stitch book to be bound, particularly the thickness and the number of bookbinding, is useful for checking the number of bookbinding and sorting and delivering.

  As described above, the stitcher device 20 of the present invention is a device that can continuously saddle-stitch signature stacks having different thicknesses. The signature supply device can also perform continuous operation smoothly by dividing the number of pages according to the number of pages of the target saddle stitch book so that a plurality of signature stacks are formed. It is also possible to further improve the efficiency by switching between two or multiple stations.

  As a means for coping with the change in the thickness of the signature laminate, an air cylinder 40 can be used in place of the spring 37 as shown in FIG.

  That is, a clincher holding member 32 provided with a support plate 29a connected to the lower portion of the clincher 29 via an axis S is attached to the lower front portion of the base frame 22 so as to be movable up and down, and the clincher holding member 32 is used as a base. An air cylinder 40 attached to the frame 21 via an air cylinder receiver 34a can also be configured to move up and down within a certain range. Reference numeral 40a denotes an air supply hose.

Accordingly, as long as a normal signature stack having a thickness of about 1 to 3 mm is handled, it is possible to handle with a constant air pressure. If the thickness of the signature stack changes more than that, measure in advance. By performing the program so that the air pressure is changed according to the thickness, the saddle stitching operation can be continuously performed.

The present invention relates to a stitcher device that is one of the devices constituting a saddle stitch bookbinding device, and each time the type of signature stack that is saddle stitched by the conventional saddle stitch bookbinding device is different from the stitcher body. Although it is an efficient device that enables continuous work, while the work of adjusting the interval between the chamfer stacks is required, the manufacturing industry of the saddle stitch bookbinding device, the saddle stitch bookbinding device is used. It has the potential to be widely used in the bookbinding industry.

20 Stitcher Device 21 Base Frame 22 Shaft Member 23 Slide Body 24 Support Rod 25 Slider 26 Stitcher Body 28 Signature Guide 29 Clincher 29a Clincher Support Plate 30 Clincher Head 31 Support Plate 31a Transport Chain 31b Guide Rail 31c Plate Plate 32 Clincher Holding member 33 Receiving member 34 Spring receiving 34a Air cylinder receiving 35 Stopper 35a Bolt 36 Shaft 36a Adjustment nut 37 Spring 40 Air cylinder 40a Air supply hose

Claims (7)

A stitcher body that is equipped with a wire for saddle stitching at the tip, and can be reciprocated and moved up and down,
A clincher which is arranged below the stitcher body so as to be movable up and down, protrudes from a conveying plate holding the signature stack, and saddle-stitches the signature stack with a wire in cooperation with the signature guide arranged on the stitcher body. Is the main component,
The clincher is
A stitcher device for saddle stitching, wherein the stitcher device is configured to automatically move up and down in accordance with the thickness of the signature stack to be saddle stitched. The clincher is
The stitcher device for saddle stitch binding according to claim 1, wherein the vertical position has a function of being automatically controlled within a certain range by an urging force of an elastic body provided on a bottom surface portion of the clincher holding member. . The clincher is
The stitcher for saddle stitching according to claim 1, wherein the vertical position has a function of being automatically controlled within a certain range by a pressure generated by an air cylinder attached to the bottom surface of the clincher holding member. apparatus. The elastic body is
A metal spring,
Interposed between the bottom portion of the clincher holding member and a spring receiver provided on a main frame that supports the clincher holding member so as to be movable up and down;
The stitcher device for saddle stitching according to claim 2, wherein the clincher holding member is in contact with a stopper attached to the main frame when the saddle stitching operation is not performed. The metal spring is
The clincher is mounted on a shaft rod provided between a bottom surface portion of the clincher holding member and a spring receiver attached to the main frame, and an urging force is controlled by an adjustment nut provided on the shaft rod. The stitcher device for saddle stitching according to claim 4, wherein the vertical position is automatically controlled within a certain range. The clincher is
The stitcher device for saddle stitching according to any one of claims 1 to 5, wherein the stitcher device is provided integrally with the clincher holding member via a clincher support plate. The stitcher device
When the thickness of the signature stack that has been transported and does not match the normal thickness registered in the control device, it will not be saddle stitched by the instruction from the control device. The stitcher device for saddle stitch bookbinding according to any one of claims 1 to 6, wherein the stitcher device has a function of processing as follows.

Images