JPS5967098A - Pasting device in bookbinding device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Field of the Invention The present invention relates to a device for applying glue to a J bookbinding device.

(2) Front of the invention In general, a bookbinding device is used to convey the collated books while clamping them in a conveyance path, and a glue provided on the lower surface of the conveyance path; Glue is applied to the cloth, and in the next step it is glued to the cover, which is then folded to complete the binding.

The glue conventionally used for this type of glue work is not impregnated very much on the adhesive surface, such as by hand cleaning.
The adhesive strength is weak, and even if it can be bonded firmly, if you listen to it too much in books etc., it will not return to its original state in the closed state and a gap will be created in that part. There is a problem that if you put it away, the glue on the fully opened part will peel off and the page will fall off. :.

In order to solve this problem, Akashi first foamed a liquid paste and applied it to the back part in the foamed state.
It has been found that the above-mentioned problems can be solved by attaching the cover through this foamed paste.

J-In the case of -1 foamed glue 1'≧1, when it is collated with the cover in the coated state, the air bubbles contained inside are removed by the opening that presses the joint surfaces of the two together. VI cracks, and as a result of this effect, the glue itself is sufficiently impregnated into the inside of the paste, and the joint strength between the two is reduced to 1 inch, and the above-mentioned foamed glue is sufficiently flexible in its hardened state. Therefore, even when the book was fully read as described above, this part did not break, and when the book was closed again, it was confirmed that there were no fold lines.

Therefore, if bookbinding can be done using such foam paste,
This makes it possible to bind books with unprecedented strength.

However, there are problems when introducing such a foamed paste into a bookbinding machine.First of all, the foamed paste foams and does not immediately adhere to the spine.
However, after a certain amount of time has passed, the bubbles contained inside the child will disappear.

Another problem is the reuse of the foamed paste.

The foaming method for this product can be done by scraping the foamed paste from the nozzle, but this method does not allow for the recovery of excess glue. Due to these problems, although the foamed glue 31 has various advantages as mentioned above, it has not been put into practical use.

(3) Purpose of the Invention The object of the present invention is to incorporate the above-mentioned foam paste into the bookbinding process so that it can be applied.

J. The other object of the present invention is to foam the paste immediately before the paste is fed, and also to recover excess foamed paste so that it can be re-foamed.

Still another object of the present invention is to immediately improve the production of foamed adhesives by improving the existing adhesive equipment.
It was designed to allow for the creation of works.

(/l) Structure and Effects of the Invention The gist of the present invention is similar to that of a sizing device that applies a sizing agent to the back of curved water conveyed in a +N2 feed path.
: The device is installed under the general conveyance path 1 below, and has a glue *81 tank containing liquid glue inside, and a glue tank whose lower part is immersed in the glue, and - a gluing roller rotatably installed in contact with the back surface of the sizing material tank; Opposite the area in contact with
It consists of a closed casing, a screw rotatably provided in the casing, a hose connected to the vicinity of the liquid composition introduction date of the casing, a 5F connected to the other end of this hose, and a foam agent pressure feeding means: The foaming agent was introduced into the casing through the hose, mixed with the liquid glue described in -1 and foamed, and the foamed glue was applied to the outer periphery of the gluing roller f-1 through the discharge port. It is characterized by

According to the above structure, the foamed IC glue 1'81 is immediately transferred to the roller and applied to the back part of the curved water that comes into contact with it, and the excess glue is removed again as the roller rotates 1'81. :
It is then circulated into the tank. Therefore, the size of the paste) IM 1
In addition, since it can be applied to the back surface immediately under foaming conditions, there is no loss of air bubbles, and therefore sufficient adhesion as described above can be obtained.

4. In the invention, the coating @
Since the state can be made extremely step-by-step, energy saving can be achieved.

Furthermore, in the present invention, a device configured as described above is added to an existing device for applying non-foaming glue (=Jsohyaku, Zunawa).
n J'l' and a mixing device are added immediately to foam glue 1! Advantage 4: It is now possible to perform coating operations on the same line.

<5) Description of Embodiments FIG. 1 does not show a bookbinding apparatus to which this scheme is applied.

This bookbinding device is connected to the conveyor line 1 (see figure 7).
A large number of clamps 2 suspended on a boom are 1Ii6
Eh, the collated books 3/) J: The sea urchin is being performed.

J- That is, 4 is a rimming cutter for trimming the back side of the book 3, 5 is a gluing device described below, and 6 is a device 5 for gluing the book 3 that has been glued. This feeding device 6 is used to supply and cover the cover to the back side, and this feeding device 6 is used to press the tables 94 ((not shown) installed in a stacked state on the shelf board 6a in the direction of the arrow while holding down the tables 94 (not shown) on the shelf board 6a. The conveying line 1 is fed and pasted by the gluing device 5, and the cover is fed to the book 3 held by the clamp tool 2 at a position where the clamp tool 2 bends at a right angle, and the gluing work is performed at this portion. It's the time when it's done.

The gluing device if5 also includes a gluing tank 7 and a pair of gluing rollers 8, 8 disposed above the gluing tank 717).

FIG. 2 shows partial details of the above-mentioned glue device 5. The shaft portion 8a of the glue device 5 has one end connected to a drive motor (not shown), and the above-mentioned edge and It is fixed to both ends of one tank 7 via bearings 8b so as to be rotatable in the direction of the arrow.

A J scraping plate 9 is arranged on one side of the gluing roller 8, and a width cutting roller 10 is arranged on the other side of the gluing roller 8, and the glue 3''81 contained in the gluing tank 7 is oriented in this direction. When rotating while attaching it to the outer periphery, the excess glue 31 at the tip of the rotation is scraped off with the marking board 9, and the remaining glue 31 is removed from the book 3 by the roller 10. By doing so, the excess glue is circulated into the glue tank 7 again.

Brackets 11 and 11 are attached to the inner bottom surface of the gluing tank 7.
A cylindrical casing 12 fixed via a cylindrical casing 12 is installed.

As shown in FIG. 3, this casing 12 includes a shaft portion 13 whose both ends are rotatably covered with the end plays 1-128, 128 of A, and a A gear 15 is provided at the protruding end of the end plate 12a of the support part 13, and this gear 15 is installed at the upper part of the glue tank 7 through the timing bell 1-16. It is rotatably connected to a motor M via a gear 17.

J. On one end side of the casing 12, the glue I.
A discharge port 121) facing the part that contacts the liquid surface of the roller 8)
In addition, an inlet 12G with liquid glue is formed at the other end of the casing 12, and a hose 18 is connected to the part facing the inlet 12G. .

This hose 18 communicates with a nitrogen gas cylinder (not shown) through one pressure regulating valve fixed to the tip edge of the glue tank 7 via a lining/foot 19a. L7 is configured to forcefully feed nitrogen rope N2 into the casing 12 by operating a valve.

However, in the gluing device configured as described above in No. 1, while the screw 14 is driven to rotate in one direction by the rotation of the -E-tater N4, the inside of the casing 12 is supplied from a nitrogen cylinder (not shown). When the gas is fed under pressure, the Nitrogen gas N2 supplied by the rotation of the screen 1-14, the liquid sizing agent, and the liquid sizing agent are mixed, and the gas is mixed with the liquid sizing agent near the discharge port 121 of A. While foaming, it is discharged from the discharge port 12b to the outside.Therefore, the paste in this foamed state is exposed to the outer periphery of the above-mentioned edge (J, due to the rotation of the J roller 8), and the remaining paste is Light bubble glue 1
While being scraped off by the scraping plate 9, it comes into contact with the back surface of the book 3, and as the clamping tool 2 moves and the roller 8 rotates, a number of scratches are placed on the back surface.

Note that the roller on the other side can of course have the same configuration, so the explanation thereof will be omitted.

In addition, in the above i1] Example, nitrogen gas 4 is used as the foaming agent, and this is mixed to foam the liquid sizing.
However, for example, other gases such as water vapor.

Any type of liquid, powder, fluid, etc. that can foam the liquid glue F1 for a predetermined period of time when mixed in 1 ratio may be used. Although in the example description it is a cylinder, it is of course possible to provide other pumping means.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the entire bookbinding apparatus to which the present invention is applied, Fig. 2 is a perspective view showing a cutaway portion of the bookbinding device according to the invention, and Fig. 3 is a -m line sectional view. １・・・・・・・・・Transport) Sline 3・・・・・・Kokusui 5・・・・・・Noriimaj device 7・・・・・・・・・Norizai 81 Tank 8...Glue I τ1 day - La'12...Casing 12b...Discharge port 12C...Suction port 14...Screw 15.16 .17. M...Driver +1418...
... hose patent applicant

Claims (1)

[Claims] (1) Glue the spine of the book being transported along the transport path.
A glue A-1 device for fabricating 1 with Φ cloth, which is installed on the lower surface of the conveying path, and has a glue II tank containing liquid glue therein, and a glue tank in the glue tank. , a roller with l'llj whose lower part is immersed in the glue described in -F and is rotatably installed so that its lower surface is in contact with the back surface of the book, and which is oriented at the inner bottom of the glue tank. Also, a casing whose discharge port faces a portion of the roller in contact with the liquid surface, a screw rotatably provided within the casing, and a screw connected near the liquid fiber inlet of the sink. The foaming agent is introduced into the casing through the hose, mixed with the liquid glue, and foamed. A gluing device for a gluing device (1), characterized in that the gluing agent is applied to the outer periphery of a gluing roller through a discharge port.