JPS59183856A - Apparatus for coating bookbinding adhesive - Google Patents

Abstract

PURPOSE:To always uniformly adhere an adhesive to the outer periphery of coating roll over the entire surface thereof, by adsorbing an unnecessary substance in the groove provided to the outer pheriphery of the coating roll formed in a proper shape. CONSTITUTION:A spiral groove 14 is provided to the outer periphery of a coating roll 11. Whereby, an unnecessary substance which is adhered to the outer periphery of the coating roll 11 and gets between the coating roll 11 and a coating amount regulating plate 13 to impede the uniform adhesion of an adhesive to the entire outer peripheral surface of the coating roll 1 is successively removed. Therefore, the coating roll 11 is rotated in such a state that a constant amount of the adhesive 15 is always adhered thereto and the adhesive 15 always uniformly forms a constant layer on a bookbinding article.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a bookbinding adhesive application device.

(Prior Art) As shown in FIG. 1, a conventional bookbinding adhesive applicator includes an adhesive tank 1, a spinner 3 equipped with an adhesive removal plate 2 on the outer periphery, and an adhesive removal plate 2 on the outer periphery. A coating roll 5 having a coating amount adjusting plate 4 on one outer periphery is rotatably arranged, and
The application roll 5 is rotated to deposit an adhesive 6 on its outer periphery, and the layer of the adhesive 6 is limited to a certain amount by the application amount adjustment plate 4, and for the adhesive 6 limited to this certain amount, By reciprocating the bound article T in the left and right directions in the figure, the adhesive 6 is applied by bringing its lower end into contact with the upper outer periphery of the coating roll 5. It was constructed so that it was uniform on the entire surface by removing υ. However, in the bookbinding adhesive applicator having such a configuration, when the unnecessary materials 8 are deposited on one outer periphery of the application roll 5, the unnecessary materials 8 are deposited on the coating amount adjusting plate 4 as shown in FIG. This prevents the adhesive 6 from being applied to the outer periphery of the applicator roll 5 in this area, and as a result, the adhesive 6 leaks on the side of the bound product T corresponding to this area. For this reason, the bound book has the disadvantage that binding defects such as page omissions occur at the final binding stage.

(Object of the Invention) The present invention has been made in order to eliminate the drawbacks of the conventional bookbinding adhesive applicator. Remove any impurities that are stuck between the outer periphery of the roll and the coating amount adjusting plate and that are likely to cause the adhesive to come off the coating roll by inserting them into the grooves, and remove them by inserting them into the groove. The object of the present invention is to provide a bookbinding adhesive applicator which allows uniform adhesive to be applied over the entire surface at all times.

(Structure of the Invention) The present invention will be described in detail below based on embodiments shown in the drawings.

FIG. 3 is a schematic diagram showing an embodiment of the bookbinding adhesive application apparatus of the present invention.

In the figure, a spinner 10 and an application roll 11 are rotatably arranged in an adhesive tank 9, an adhesive removal plate 12 is provided on one outer periphery of the spinner 10, and an adhesive removal plate 12 is provided on one outer periphery of the application roll 11. A coating amount adjusting plate 13 is disposed, and a groove 14 is provided on the outer periphery of the coating roll 11 as shown in FIG.

The present invention is constructed as described above. Next, its operation will be explained.

First, in the adhesive tank 9, by rotating the applicator roll 11, how many adhesives are applied to the outer periphery of the roll, and how many adhesives are applied is limited to a constant amount by the application amount adjusting plate 13. The adhesive is applied to the upper part of the rotating application roll 11 by moving the bound workpiece 15 back and forth in the left and right directions as shown by dotted lines and solid lines in the figure, and the adhesive is applied to the upper part of the rotating application roll 11. The applied adhesive is scraped off with a spinner 10 to make it uniform over the entire surface, and then
Scrape off the adhesive attached to the outer periphery with the removal plate 12.
Return it to the medicine tank 9. When applying adhesive on the upper outer periphery of the application roll 11 to the lower end of the bound product 15, how many unnecessary materials are deposited on the outer periphery of the application roll 11, and when the adhesive is applied to the lower end of the bound product 15, Coating amount adjusting plate 1
Move to the placement location No. 2 and install the chest cloth amount adjustment plate 13.
If the unnecessary material tries to get caught between the lower end of the coating roll 11 and the coating amount adjustment plate 13, the unnecessary material
The lower end of the roll 11 is automatically pushed into the spiral groove 14 and removed from the outer circumferential surface of the roll 11 by being further moved along the groove 14 to one side of the roll 11. A uniform layer of adhesive 15 is always applied over the entire surface of the coating roll.

(Effect of the invention) The present invention is configured and operates as described above,
By providing the groove 14 on the outer periphery of the application roll 11, the adhesive can be applied to the outer periphery of the application roll 11, and the adhesive can be applied to the outer periphery of the application roll 11 by being sandwiched between the application roll 11 and the application amount adjusting plate 13. Since it is configured to successively remove unnecessary materials that would hinder the uniformity of the entire surface of the application roll 11, a constant amount of the adhesive 15 is constantly applied over the entire surface of the coating roll 11. Therefore, by contacting the upper outer periphery of the applicator roll 11, the adhesive 15 is applied to the lower part of the bound workpiece 16, which is constantly adhered in a constant layer. Agent 1
It has the effect of almost completely preventing situations such as pages being removed due to omission of this adhesive during bookbinding, and improving the reliability of the device itself. It has the advantage of helping improve health.

It should be noted that there is no reason why the present invention should be limited to the above-mentioned embodiments; for example, the grooves provided on the outer periphery of the coating roll 11 can be used to remove impurities that tend to get caught between the coating amount adjustment plate and the coating amount adjusting plate as the coating roll 11 rotates. It goes without saying that grooves other than the groove 14 shown in the embodiment may be used.

[Brief explanation of drawings]

Figure 1 is a schematic diagram of a conventional bookbinding adhesive application device;
Fig. 2 is an enlarged perspective view of the applicator roll, Fig. 3 is a schematic diagram showing an embodiment of the bookbinding adhesive applicator of the present invention, and Fig. 4 is an embodiment of the applicator roll. FIG. In the figure, 9...Adhesive tank, 11...Applying roll, 1
41・”・Groove O

Claims (1)

[Claims] A convex-shaped groove is provided on the outer periphery of the adhesive applicator roll, which is rotatably arranged in an adhesive ellipse, and the groove and an adhesive application amount adjusting plate placed on one outer periphery of the applicator roll are used to control the application roll. 1. A bookbinding adhesive applicator, characterized in that unnecessary materials on the outer periphery are removed from the outer periphery of the applicator roll by successively pushing them into the grooves.