JP3536285B2 - Prevention device for small glue adhesion to book clamp device in perfect binding machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bookbinding clamp device in a wireless binding machine for preventing a small amount of glue attached to the cover when the cover is attached to a booklet from adhering to the mouthpiece of the bookbinding clamp device. The present invention relates to a device for preventing the attachment of a small amount of glue to the.

[0002]

2. Description of the Related Art There is a type of a perfect binding machine which clamps a printed but not yet bound book and automatically attaches a cover to its back, as shown in FIG. This wireless binding machine includes a circulation line 1 that circulates in the horizontal direction and a conveyance line 2 that joins the return line of the circulation line 1.
In the circulation line 1, there are a sheet-entry rising portion 3 for raising a printed book while conveying it to a clamp position, and a backing portion 4 for aligning the raised and clamped printed books. A cutter part 5 for flatly cutting the spine of the printed book, and a creased gully part 6 for scoring and gullying the spine of the printed book after cutting.
A horizontal glue portion 7 for adhering glue such as hot melt to a lateral edge portion of the spine of the printing book, a back glue portion 8 for gluing the spine of the printing book, and the like are provided. Cover feeder section 9 for sequentially feeding the cover sheets, a cover guide section 10 for guiding the fed cover sheets so as not to be swung left and right, a crease portion 11 for making a crease on the cover sheet, and a small edge at both left and right ends of the cover sheet. Has a small-glue applying section (not shown) for applying a small amount of glue, and further, at the portion where the conveying line 2 merges with the return path of the circulation line 1, the cover sheet is fed to convey the book. A timing drum part 12 for adjusting the feeding timing, a synchronizing part 13 for superimposing the spine of the book on the central spine of the cover, and a press for binding the cover by crimping the spine of the superposed book and its lateral edges. Part 14 and a temporary cover on the front and back of the book with the cover attached to the back A configuration equipped with a feeding this conveyor unit 15 so as feed out to adhere the fore edge of the cover. Note that the printed book with the cover attached is completed as a booklet by cutting the three sides of so-called top, ground, and edge in the downstream process. Reference numeral 16 indicates a control panel.

In the above-mentioned wireless binding machine, a large number of book clamp devices 17 are arranged in the line direction so as to hold and convey the book in an upright posture until it reaches the book feed conveyor section 15 from the sheet rising section 3. The transport means is configured to transport along the circulation line 1. As shown in FIG. 5 as an example, the clamp device 17 has a guide bar 18 and a block 19 extending in the direction of the line 1 arranged on the left and right so as to face each other with the line 1 interposed therebetween. A rack bar 23 extending across the line 1 is arranged between the front and rear ends, and the rack bar 23, the guide bar 18, and the block 19 are integrally mounted,
A frame 20 that has a pinion (not shown) that meshes with the racks 23a of the front and rear rack bars 23 at both ends and that has a fastening plate 20a with a vertical surface on the line side,
The pinion is arranged in parallel with the guide bar 18 so that the pinion is engaged with the rack 23a of the rack bar 23, and further, the line side surface of the guide bar 18 has a thin guide plate whose upper end edge is bent outward. 24 is detachably attached,
The frame 20 is moved in the left-right direction so that the distance between the tightening plate 20a and the guide bar 18 can be adjusted, and a spring (not shown) is used to tighten the tightening plate 20a and the guide bar 18.
Are urged so that the
The booklet 22 can be clamped between the a and the guide bar 18, and the outer edge of each lower end of the guide bar 18 and the frame 20 is provided with a fore edge portion of a cover, which will be described later. The cap 21 is attached so that the inner surface of the cover can be placed along the surface of the cover.

In the case of the above-mentioned wireless binding machine, as described above, the cover sheet is attached to the printing book 22 by the press section 14, and the cover sheet 25 fitted to the spine of the printing book 22 is adjusted by the tuning section 13. As shown in an example in FIG. 6, in the pressing unit 14, the back press plate 14a and the side press roller 14b are used to press-bond the spine glue and the side glue. At this point,
The paste 26 attached to the front edge of the cover 25 is attached to the copybook 22.
The front cover 22a on the front side and the front cover 22b on the back side are not yet overlapped with each other, and as shown in FIGS. 7 (a) and 7 (b), the cover 25 is attached to the spine in the book feed conveyor section 15. While the printing book 22 is conveyed along the conveyor 15a and the side guides 15b downward from the clamp device 17 and conveyed downstream, the cover 25 is closed and left and right of the cover 25 to which the edge glue 26 is applied. The edge portions of the sheet are adhered to the temporary covers 22a and 22b on the front and back sides of the printing book 22.

[0005]

However, when the booklet 22 having the cover sheet 25 attached thereto comes out of the clamp device 17 in the book feed conveyor section 15, the inner surface of the cover sheet 25 which has been closed closes with the guide bar 18. Since it will be rubbed with the mouthpiece 21 attached to the lower end outer edge of the plate 20a, the edge glue 26 will adhere to the mouthpiece 21, and the clamp device 17 will make a round and reach the book conveyor unit 15 again. Similarly, when the booklet 22 having the cover sheet 25 attached thereto comes out of the clamp device 17, the glue 26 adhering to the mouthpiece 21 is transferred to the inner surface of the cover sheet 25 and stains the inner surface of the cover sheet 25. There was a problem that when it was pasted, it adhered to places other than the small edge.

Therefore, in the present invention, when the small edge portion of the cover is adhered to the front cover and the temporary cover of the back side of the printing book, the glue of the small edge portion is prevented from adhering to the die of the clamp device.
It is intended to prevent the occurrence of stains due to the transfer of glue from the die to the inner surface of the cover.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a copy book between a guide bar of a clamp device and a clamping plate of a frame which can be moved toward and away from the guide bar. Attach the spine of the cover to the spine of the book in the middle of clamping and transporting along the line, and print the inner edge of the cover when pulling the book with the cover down from the clamp device. Small protrusions are formed on the surface of the guide bar of the above-mentioned clamping device and the mouthpiece provided on the lower outer edge of the clamping plate in the wireless binding machine that is adhered to the front side and the back side of the book at a required interval in the line direction. Installed configuration.

When a force is applied to the cover in a direction to close the cover when the printed book with the cover attached is pulled out downward from the clamp device, the inner surface of the cover comes into contact with the protrusion on the die surface of the clamp device, and Small glue does not adhere to the die.

Further, instead of attaching the small protrusions to the surface of the die, the projecting piece projects from the surface of the die at the base end side of a plate having a projecting piece on the tip end on the surface of the die. With such a configuration, when the printing plate comes out of the clamping device, the inner surface of the cover comes into contact with the projecting piece, and the edge glue does not adhere to the die.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1 (a) (b) and FIG. 2 show an embodiment of the present invention. In the bookbinding clamp device 17 of the wireless binding machine having the same structure as that shown in FIG. 5, a guide bar is provided. 18 and the columnar small protrusions 27 are attached at required intervals in the direction of the line 1 which is the longitudinal direction of the surface of the mouthpiece 21 attached to the lower edge outer edge of the fastening plate 20a of the frame 20, and the book conveyor unit 15 , When the cover sheet 25 with the cover sheet 25 attached thereto is pulled out downwardly between the guide bar 18 and the fastening plate 20a and the cover sheet 25 is closed, the small protrusions 27 are formed on the inner surface of the cover sheet 25. Make contact.

When the press book 14 having the cover 25 attached to its back is sent to the book feed conveyor section 15 by the press section 14, as shown in FIG. 2, the guide of the clamp device 17 holding the print book 22 is held. The space between the bar 18 and the fastening plate 20a is widened. In this state, the printing plate 22 is guided by the left and right side guides 15b and is conveyed obliquely downward to the downstream side by the conveyor 15a, so that a closing force is gradually applied to the cover 25, so that the cover 25 is The inner surface tries to be brought into contact with the guide bar 18 and the mouthpiece 21 at the lower outer edge of the fastening plate 20a. Small protrusions 27 are attached to the surface of the mouthpiece 21 at required intervals in the line 1 direction. Therefore, the inner surface of the cover 25 does not directly contact the base 21, but only slightly contacts the tip of the small protrusion 27. Accordingly, the cover sheet 25
Even if the inner surface of the sheet is rubbed against the tip of the small protrusion 27, the adhesive 26 on the edge of the small edge of the cover 25 adheres to the small protrusion 27 only in a very small amount and does not adhere to the mouthpiece 21. When the booklet 22 to which the cover sheet 25 is attached similarly comes out of the clamp device 17, the edge glue 26 is not transferred to the inner surface of the cover sheet 25, and the stains 26 are not transferred. It is possible to prevent the occurrence of the occurrence, and the edge portion of the inner surface of the cover 25 is the temporary cover 2 of the copybook 22.
It is possible to prevent the portions other than the fore-edge portion from being adhered when they are attached to 2a and 22b.

Next, FIG. 3 shows another embodiment of the present invention. Small projections are formed on the surface of the base 21 in the same construction as shown in FIGS. 1 (a), (b) and FIG. Instead of attaching 27, a notched concave portion 28 having a required length in the line 1 direction is provided on the surface portion of the mouthpiece 21, and a protrusion having a tip portion bent into an L shape is provided in the concave portion 28. As a piece 29, a plate 30 made of an elastic body, which is formed in a V-shape as a whole, is incorporated, the base end side of the plate 30 is fixed by a pin 31, and the projecting piece 29 at the tip end projects from the surface of the base 21. The elastic reaction force is obtained.

With the configuration shown in FIG. 3, when the cover 25 attached to the spine of the printing book 22 is closed, the cover 25
Although the inner surface of the cover contacts the protruding piece 29 of the plate 30, as in the case of the small protrusion 27 shown in FIGS. 1 (a), (b) and FIG. Does not stain the inner surface of the cover 25, and when the cover 25 has a large closing force, the plate 30 elastically deforms and retracts. As a result, it will not be scratched.

The number of the small protrusions 27 and the plate 30 to be mounted and the mounting interval can be arbitrarily selected, and the plate 30 does not have to be made of an elastic body. Of course, various changes can be made within.

[0016]

As described above, according to the device for preventing edge glue from adhering to the book clamp device in the binding device of the present invention, the guide bar of the clamping device and the guide bar can be moved toward and away from the guide bar. The back of the cover is pasted on the spine of the book at the midpoint where the book is clamped between the clamping plate of the frame and conveyed along the line, and the book with the cover pasted downward from the clamp device. On the surface of the cap provided on the guide bar of the clamp device and the lower end outer edge of the fastening plate in the wireless binding machine, which is configured to adhere the inner edge of the cover to the front side and the back side of the book when it is pulled out, Since the small protrusions are attached at required intervals in the line direction, when the cover is closed due to the downward displacement of the book and the edge is adhered to the temporary cover on the front and back sides of the book, the inner surface of the cover Small protrusion By touching, the front edge of the cover will not adhere to the mouthpiece, and as a result, the area other than the front edge will be stuck due to the transfer of the front edge to the inner surface of the cover. In addition, instead of attaching a small protrusion to the surface of the base, the base end side of the plate having a protrusion on the tip is attached to the surface of the base so that the protrusion protrudes from the surface of the base. Even if it is assembled as described above, it is possible to prevent the occurrence of a situation where the edge glue is attached to the mouthpiece by the inner surface of the cover contacting the protrusion when the cover is closed. Exert the effect.

[Brief description of drawings]

1A and 1B show an embodiment of the present invention, in which FIG. 1A is a perspective view of a book clamp device, and FIG. 1B is an enlarged view of a portion A of FIG.

FIG. 2 is a front view of a state in which a small protrusion attached to the mouthpiece of the bookbinding clamp device is functioning.

FIG. 3 is a partial perspective view of a book clamp device according to another embodiment of the present invention.

FIG. 4 is a schematic plan view showing an example of a wireless binding machine.

5 is a perspective view showing an example of a book clamp device used in the wireless binding machine shown in FIG. 4. FIG.

FIG. 6 is a schematic diagram showing a press section of the wireless binding machine shown in FIG.

7A and 7B show the bookbinding conveyor section of the wireless binding machine shown in FIG. 4, in which (A) is a schematic view showing a state in which the copybook is descending, and (B) is a cover sheet with the copybook descending. It is an outline figure showing the state where the fore-edge part adhered to the temporary cover.

[Explanation of symbols]

17 Book clamp device 18 Guide bar 20 frames 20a tightening plate 21 mouthpiece 22 printed books 25 cover 26 small pieces of glue 27 Small protrusion 29 Projection 30 plates

Claims (2)

(57) [Claims] 1. A back of a book in the middle of a position where the book is clamped between a guide bar of a clamp device and a clamping plate of a frame that can be moved toward and away from the guide bar and is conveyed along a line. In a wireless binding machine, in which a spine of a cover sheet is attached and an inner edge of the cover sheet is adhered to a front side and a back side of the book when the book attached with the cover is pulled out from a clamping device. A booklet in a wireless binding machine, characterized in that small protrusions are attached to a surface of a guide bar of the clamp device and a lower end outer edge portion of a fastening plate at predetermined intervals in a line direction. A device to prevent small adhesive from adhering to the clamp device. 2. Instead of attaching a small projection to the surface of the base, the base end side of a plate having a projection formed on the tip of the base is attached to the surface of the base, and the projection projects from the surface of the base. The glue adhesion preventing device for a book clamp device in a wireless binding machine according to claim 1, which is assembled as described above.