JPH08133224A - Device for sealing saddle stitch book - Google Patents

Abstract

PURPOSE: To enable a roller to keep horizontal, by allowing the roller, used for pressing parts which are stuck together, to fix a drive roller, connected to drive shafts via univeral joints having two or more joints, a follower roller, and a roller to the same support member and by using the support member as a link mechanism having four or more nodes. CONSTITUTION: A driving force is transmitted from a motor to a gear 1 to rotate drive shafts 2. The drive shafts 2 are connected by universal joints 3, and fixed to a support member 4 via a bearing. Also, a follower roller 7, to which power is transmitted from a drive roller 6 by means of a belt 5, is rotatably fixed to the same drive shafts 2. Inside and at the lower end of the belt 5 stretched between the drive roller 6 and the follower roller 7 is a roller 9 via a plate spring 8, and this exerts pressure to the belt 5. Even if the thickness of a work changes, a roller for pressing parts which are stuck together can keep horizontal at a set thickness at all times, therefore beautiful sealing can be achieved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a saddle stitch book closing device.

[0002]

2. Description of the Related Art In a saddle-stitched book, one side of the front edge (or the outermost signature) of the saddle-stitched book is lengthened in advance as shown in FIG. 5, and glue is folded back as shown in FIG. It has been sealed. The conventional apparatus is configured as shown in FIG. 7, and a work (general term for saddle stitching and sealing) 22 that is intermittently sent out part by part from the book supply unit 20 is conveyed in the direction of the arrow. The work 22 advances to the bonding section restraining roller section 26 through the folding guide section 23, the hot melt nozzle section (adhesive supply section) 24, and the bending guide section 25 by the conveyor belt 21. Conveyor belt 21 in FIG.
Are installed above and below the flow surface of the work 22, and the work 22 is conveyed by being sandwiched by upper and lower belts. In the process of being transported,
As shown in FIG. 8, the fore edge is spread by a bending guide, glue is applied, and it is folded back again and bonded. And FIG.
When passing through the bonding section pressing roller section 26, the bonding section is brought into close contact with itself by the weight of the roller, and the sealed book is completed.

However, in the conventional apparatus, there is a problem in the movement of the bonding portion pressing roller portion, and as shown in FIG. 9, when the work 22 is thin, the driving roller as shown in FIG. 6 is kept substantially horizontal, but when the work 22 is thick, there is a problem that the drive roller 6 is inclined as shown in FIG. 9B. As a cause for this, it was found that there was one joint part of the universal joint and that the link mechanism holding the roller had a single joint.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to make the bonding portion pressing roller portion of a saddle stitching and sealing device work regardless of whether the work is thin or thick. Another object of the present invention is to provide a saddle-stitching book closing device having a mechanism for always contacting the work gluing part horizontally.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a printing book supply section, a folding guide section, an adhesive supply section, a folding guide section, a bonding section pressing roller section during a belt conveying process. In the saddle-stitching main sealing device provided, a drive roller in which the laminating part pressing roller part is connected to a shaft having a gear for transmitting a driving force via a universal joint having two or more joint parts, and the drive roller. The driven roller, which is transmitted from the endless belt by the rotation of the endless belt, and the roller connected to the leaf spring, which is in contact with the lower end inside the endless belt, are rotatably fixed to the same support member, and the support member is formed by a link mechanism of four or more sections. A saddle-stitching book closing device that can be moved vertically while maintaining its level.

[0006]

In the saddle stitching and sealing device of the present invention, a drive roller in which the laminating section pressing roller section is connected to a shaft having a gear for transmitting a driving force through universal joints having two or more joint sections, By providing a link mechanism with four or more joints on the supporting member to which the driving roller, the sliding roller, the roller, etc. are fixed, it is possible to maintain the horizontal position and to move vertically.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a plan view of a bonding portion pressing roller portion which is a main portion of the saddle stitching and sealing apparatus of the present invention. The drive force is transmitted from the motor to the gear 1 by a chain or the like, and the drive shaft 2 is rotated. The drive shaft 2 is connected by universal joints 3,3. The drive shaft 2 is fixed to the support member 4 via a bearing, and the drive roller 6 is fixed to the drive shaft. The support member 4
A driven roller 7 to which power is transmitted from the drive roller 6 by the belt 5 is rotatably fixed to the roller. The gear 1
Uses the same size as the drive gear of the conveyor belt, and also makes the number of rotations equal. Then, the outer diameters of the driving roller 6 and the sliding roller 7 are determined so as to be equal to the peripheral speed of the conveyor belt to prevent the bonded portion from being displaced due to the difference in peripheral speed.

FIG. 2 (a) is a front view of FIG. A roller 9 is provided via a leaf spring 8 at the lower end of the inner side of the belt between the driving roller 6 and the sliding roller 7 on which the belt 5 is applied to apply pressure to the belt 5. FIG. 2B shows a roller 9
FIG.

FIG. 3 is a partial side view as seen from the direction X in FIG. The raising width of the drive roller is arbitrarily determined by the stopper 11. The drive roller 6 can be moved to the information while maintaining the horizontal state by the link mechanism including the arm 12 having two joints on one side. At this time, the universal joints 3 and 3 can smoothly and smoothly move.

FIG. 4 is a partial side view for explaining the Y direction of FIG. Similarly, the locomotion roller 7 also has an arm 1 with two joints on one side.
The link mechanism consisting of 3 enables movement while maintaining a horizontal state as shown by a dotted line. Of course, both the driving roller 6 and the moving roller 7 are fixed to the same support member, so that both rollers perform the same movement.

[0011]

When the saddle-stitching bookbinding device of the present invention is used,
Even if the thickness of the work (saddle stitch book, signature, etc.) changes, the thickness of the sticking part pressing roller is kept horizontal with the set thickness, so the roller surface is relative to the work flow surface. Since it contacts horizontally, the adhesion is improved and the sealing can be done neatly.

[0012]

[Brief description of drawings]

FIG. 1 is a plan view of a bonding section pressing roller section that is a main section of a saddle stitching and sealing apparatus of the present invention.

FIG. 2 (a) is a front view of FIG. Figure 2 (b)
FIG. 4 is a sectional view of the roller 9 taken along the line AA.

FIG. 3 is a partial side view as seen from the direction X in FIG.

FIG. 4 is a partial side view for explaining the Y direction of FIG.

FIG. 5 is an explanatory diagram of a saddle-stitched book.

FIG. 6 is an explanatory view of a method for sealing a saddle stitched book.

FIG. 7 is a plan view and a front explanatory view of a conventional saddle-stitching and sealing device.

FIG. 8 is an explanatory diagram showing a process in which the work is sealed.

FIG. 9 is an explanatory diagram showing a state of a bonding section pressing roller section of a conventional device.

[Explanation of symbols]

1 ... Gear 2 ... Drive shaft 3 ... Universal joint
4 ... Supporting member 5 ... Belt 6 ... Driving roller 7 ... Moving roller 8 ... Leaf spring 9 ... Roller 10 ... Mounting plate 11 ... Stopper 12, 13 ... Arm 20 ... Book supply unit 21 ... Conveyor belt 22 ... Workpiece 23, 25 ...
Bending guide part 26 ... Laminating part pressing roller part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaharu Gobu 1-5-1 Taito, Taito-ku, Tokyo Toppan Printing Co., Ltd. (72) Inventor Masaki Kono 1-1-5 Taito, Taito-ku, Tokyo Toppan Imprint Co., Ltd.

Claims (1)

[Claims] 1. A saddle-stitching book closing apparatus comprising a bookbinding supply section, a folding guide section, an adhesive supply section, a folding guide section, and a bonding section pressing roller section during a belt conveying step, wherein the bonding section pressing roller is provided. A drive roller connected to a shaft having a gear for transmitting a driving force via a universal joint having two or more joints, a driven roller to which rotation is transmitted from the drive roller by an endless belt, and the endless belt. Characterized in that a roller connected to a leaf spring which is in contact with the lower end inside is rotatably fixed to the same support member, and the support member is vertically movable by a link mechanism having four or more joints. Saddle stitch bookbinding device.