JPH0329171Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a booklet back pasting machine, and more particularly to a booklet back pressing roll device in a back pasting machine that allows a spine pasting tape to be applied smoothly and well to the back.

For example, if multiple sheets of paper, including carbon paper for copying, are made into a set and many sets are assembled into one booklet, a spine sticker (tape) is attached to the back of each temporarily attached booklet. Mounting is done.

In a spine pasting machine, one side edge of the tape, the surface of which is coated with glue, is generally adhered to the lower surface of the back side of the booklet and is fed by a conveyor belt.On the way, the tape is moved upward by a riser guide. The tape is folded up and joined to the back surface of the booklet, and the other side edge of the tape protruding upward is folded onto the top surface of the booklet by a folding guide to complete the spine attachment.

However, while the tape is applied to the back of the booklet and the upper end is folded onto the top surface of the booklet by the folding guide, the tape tends to sag or wrinkle, which not only makes it difficult to attach the back but also makes the finished product look unsightly. , often lowering the product value.

In view of this, the present invention was devised for the purpose of providing a booklet back pressing roll device for a spine pasting machine that can perform spine pasting reliably and neatly. A group of presser rolls are arranged on the downstream side of the start-up guide to protrude from the passage path of the back surface of the booklet, and are individually swung backwards against a spring as the booklet passes, and these presser rolls The tape is successively rolled onto the back of the booklet to adhere it flatly.

Hereinafter, the present invention will be described with reference to embodiments shown in the drawings.

Fig. 1 shows a plan view of the main parts of the present invention, Fig. 2 shows the same front view, and Fig. 3 shows the same side view.
It is conveyed in the direction of the arrow in FIG.
A sliding plate 6 is provided at the portion where the back surface 2a of the booklet 2 is located to improve the sliding of the tape 5.

The back surface 2a of the booklet 2 is positioned and fed by a guide plate (not shown), and a stand-up guide 7 is provided following the guide plate.

As is well known, the rising guide 7 gradually bends the tape 5 from the flat surface 7a to the vertical surface 7b so as to gradually bend the tape 5, which is fed in a flat manner and has one edge adhered to the lower surface of the back side 2a of the booklet 2, into an upright shape. It consists of a plate material twisted in a transitional manner, at the end of which the tape 5 is joined to the back surface 2a of the booklet 2.

In the present invention, a presser roll device 8 is provided immediately after the rising guide 7. This presser roll device 8 includes a holding frame 12 having a U-shaped cross section, one end of which is pivotally supported by a shaft 14 fixed to the machine body side, and a holding frame 12 having a shaft 13 at the other end of the holding frame 12, which is swingable in a horizontal plane. a roll holding frame 15 in which the parts are supported;
A U-shaped roll holding frame 16 whose one end is pivotally supported by the shaft 14, presser rolls 17 and 18 which are pivotally supported by the roll holding frame 15, and presser roll 19 which is pivotally supported by the roll holding frame 16. It consists of springs 10 and 11 interposed between the back surfaces of the holding frame 12 and roll holding frame 16 and the fixed substrate 9,
The circumferential surface of each of the rolls 17, 18, and 19 is slightly protruded into the paper feed table 1 from the path of passage of the back surface 2a of the booklet 2, and the back surface 2a of the booklet 2 conveyed by the conveyor belts 3 and 4 is pressed down. roll 17,1
8 and 19, the rear surface 2a is pressurized by the urging force of the springs 10 and 11.

Therefore, as the booklet 2 moves, the tape 5 attached to the back surface 2a of the booklet 2, folded up by the stand-up guide 7, and joined to the back surface 2a comes into contact with the first presser roll 17 of the presser roll device 8, and the roll The holding frame 15 rotates around the shaft 13 to hold this roll 1.
7, but when it comes into contact with the second presser roll 18, the roll holding frame 15 returns, so it comes into contact with the first presser roll 17, and the spring 10 on that side is collected, and both rolls 1
Push 7 and 18 away. Therefore, the press rolls 17 and 18 roll the tape 5 against the back surface 2a of the booklet 2 by the repulsive force of the spring 10, and the tape 5 is brought into close contact with the back surface 2a of the booklet 2 in a flat shape.

As the booklet 2 further advances, it comes into contact with the third presser roll 19, the spring 11 on this side is also deflected, and all the presser rolls 17, 18, 19 press the tape 5, bringing the tape 5 even closer to the back surface 2a. let

When the booklet 2 has finished passing, each presser roll 17,1
8 and 19 are projected to their original positions by springs 10 and 11 and wait for the arrival of the next booklet 2.

In this way, the present invention uses a spine pasting machine that automatically applies spine tape to the back of a booklet, and after joining one edge of the glued tape to the lower surface of the back side of the booklet, the tape is started up. A group of presser rolls is disposed on the downstream side of the rising guide which is joined to the back surface of the booklet, protruding from the passage path of the back surface of the booklet, and swinging backward individually against a spring as the booklet passes. ,
These presser rolls sequentially press the tape against the back of the booklet to make it adhere flatly, so that when pressing the folded tape with the riser guide against the back of the booklet, no excessive pressing force is applied at once. First, the tape is gradually pressed using a plurality of presser rolls, which allows the tape to adhere smoothly and tightly without wrinkles.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the device of the present invention;
FIG. 2 is a front view of the same, and FIG. 3 is a side view of the rising guide section. 1... Paper feed table, 2... Booklet, 2a... Back, 3, 4... Conveyor belt, 5... Back tape, 6... Sliding plate, 7... Standing guide, 8... Presser roll Device, 10, 11... Spring, 12... Holding frame, 15, 16... Presser roll holding frame, 17,
18, 19...presser roll.

Claims (1)

[Scope of utility model registration request] In a spine pasting machine that automatically pastes a spine pasting tape 5 on the back surface 2a of a booklet 2, the glued tape 5 is
After one end edge is joined to the lower surface of the back side of the booklet 2, this tape 5 is raised and joined to the back face 2a of the booklet 2.A rising guide 7 protrudes onto the trailing path of the back side of the booklet. The presser roll device 8 is provided with a holding frame 12 whose one end is pivotally supported by a shaft 14 whose position is fixed;
A roll holding frame 15 is pivotally supported at the other end of this holding frame 12 by a shaft 13 and supports the presser rolls 17 and 18.
and a roll holding frame 16 whose one end is pivotally supported by the shaft 14 and pivotally supports the presser roll 19, and the backs of the holding frame 12 and the roll holding frame 16 to urge each presser roll to pass through the back surface 2a of the booklet 2. Presser rolls 17, 18, 1 are made up of springs 10, 11 that project onto the track, and are pushed away by the passage of the booklet 2.
9. A booklet back pressing roll device for a back pasting machine, characterized in that the tape 5 is sequentially pressed against the back surface 2a of the booklet 2 by the rollers 9.