JPS59123554A - Automatically supplying device for adhesive agent in veneer gluer - Google Patents

Abstract

PURPOSE:To improve working efficiency by providing an electric sensor which detects the height of the liquid level in an adhesive agent pool part, detecting the decrease in the liquid level arising from adhesive coating, and replenishing automatically the adhesive agent from an adhesive tank. CONSTITUTION:When the adhesive agent in an adhesive agent pool part 8 on an upper gluing roll 4 decreases, an electric sensor 9 detects the decrease from the height of the liquid level, and operates a gear pump 30 to feed the adhesive agent from an auxiliary tank 22 to branch pipes 17, 18. When the liquid level 33a of the adhesive agent attains a prescribed height, the sensor 9 detects the same and stops the pump 30. An electric sensor 13 operates in the same way to replenish the adhesive agent of a lower vat 12 in the vat 12 as well.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an automatic veneer gluing machine that pools adhesive and always pools a predetermined amount of adhesive in the adhesive pool portion which is sequentially applied to the gluing roll. Regarding the supply device.

In the past, workers who glued veneer veneers would occasionally check to see if the adhesive pool of the gluing machine was empty between insertions of veneers, and then check the working ridges. The work of inserting the veneer was temporarily suspended, the valve of the liquid supply pipe was opened, and the specified amount of adhesive was supplied. Therefore, not only does it reduce the work efficiency of inserting the veneer veneer, but also the amount applied to the glue roll changes according to the pool amount in order to increase the supply.
There were drawbacks such as the inability to apply an appropriate amount of glue.

In this invention, an electric sensor is installed in the adhesive pool part to detect the liquid level Z, and when the amount of applied adhesive decreases and the liquid level drops, it is detected and the pump is activated to remove water from the auxiliary tank, etc. The purpose is to automatically replenish the appropriate amount of adhesive in a short period of time.
1 is a veneer veneer gluing machine, which applies adhesive to the front and back sides of a veneer veneer, and then adheres the front and back surfaces of the veneer veneer to form three layers. A doctor roll 2.3 made of a metal roll is mounted on the side of each gluing roll 4.5 and attached thereto.

Closure plates 6.7 are provided on the upper halves of both ends of the upper gluing roll 40, and are connected to the upper halves of both ends of the doctor roll 2 attached to one side of the gluing roll 4 to form adhesive pools on the outer peripheral surfaces corresponding to the upper halves of both rolls. A section 8 is provided in which the adhesive 33a is stored. Detect the liquid level of this stored adhesive! Air sensor 9 stays 1
The lower gluing roll 5 supported by the bracket 11 of 0 is immersed in adhesive 33bK stored in the lower vat 12, and an electric sensor 13 for detecting the liquid level of this adhesive is attached to the frame 14. The upper adhesive pool part 8 is connected to a liquid supply pipe 16 connected to a distribution pipe 17. The lower notch 12 is also connected to the liquid supply pipe 19 that communicates with the auxiliary tank n! A gear pump electrically associated with the electric sensor 9 is disposed in the liquid supply pipe 16, and a gear pump 21 associated with the electric sensor 13 is also disposed in the liquid supply pipe 19.

The auxiliary tank n communicates with a glumixer (not shown) via a liquid feed pipe 23 to receive supply of adhesive, and 7. - Is it temporarily stored between the glue machine and the stirring blade rotates separately for the best condition? maintain.

Note that 5, 26 and 27 are manual valves. This invention has the above-mentioned configuration. If there is no adhesive in the adhesive pool part 8 of the upper gluing roll 4, the electric sensor 9 detects the liquid level and activates the gear pump 20, and the auxiliary tank 22 ↓ Adhesive distribution pipe 17.18 Supply.

When the liquid level of the adhesive 33a reaches a predetermined height, the electric sensor 9 detects this, stops the gear pump 20Z, and stops feeding the adhesive. Also, in the lower vat 12, the electric sensor 13 detects that the adhesive 33b is too strong, activates the gear pump 21 to feed the adhesive to the vat 12, and when it reaches a predetermined amount, the liquid level is similarly detected. , stop feeding the adhesive. In this way, the adhesive that is detected by the electric sensor 9.13 is applied to the adhesive roll 4.5.jf) The veneer veneer 3
It is automatically replenished when the liquid level drops.

Since the present invention is as described above, the adhesive pool part in the veneer veneer gluing machine, that is, the pool part constituted by the upper gluing roll and the doctor roll, and the lower half of the lower gluing roll are immersed. The adhesive on the vat can be refilled automatically.

Therefore, workers do not need to replenish glue at all.
You can concentrate on inserting the veneers, increasing the efficiency of gluing the veneer system.

In addition, since a predetermined amount of adhesive always remains in the pool of the gluing machine, a predetermined amount adheres to the gluing roll.
A predetermined difference in glue for the veneer veneer inserted between the glue rolls? Can be applied.

In addition, the adhesive is maintained at a uniform concentration in the auxiliary tank, and the glue roll only needs to store as small a quantity as possible.
Is the adhesive in the best condition by replenishing it from the liquid supply pipe each time it decreases? In addition, since a gear pump is installed in the middle of the liquid supply pipe, after the work is completed, the inside of the pipe is cleaned by circulating water or hot water.
It is highly effective in preventing glue clogging.

[Brief explanation of the drawing]

Is the drawing an example of this invention? As shown in Figure 1 1...
Gluing machine, 2.3... Doctor roll, 4.5... Gluing roll, 6.7... Closure plate, 8... Adhesive pool portion, 9... Electric sensor, 10.・Stay, 11...
・Bracket, 12...Rose l-, 13...Electric sensor, 14...Frame, 15...Bracket, 1
6.19...Liquid supply pipe, 20.21...Gear pump,
n...Auxiliary tank ○ Applicant: Meiwa Kikai Co., Ltd. Agent, Kan Ohga, Masayoshi Masuda

Claims (1)

[Claims] In a veneer veneer gluing machine, a pair of gluing rolls are placed opposite each other on the upper and lower sides, and adhesive is applied to the front and back surfaces of the veneer veneer 7 by passing between them. Electric sensors that detect the adhesive liquid level are installed in the adhesive pool that surrounds one side of the roll, and in the vat that immerses the lower half of the lower gluing roll and applies adhesive to the gluing roll. Adhesion in a veneer veneer gluing machine that automatically supplies adhesive from an auxiliary tank to which a liquid supply pipe is connected to the adhesive pool of the upper gluing roll and the vat of the lower gluing roll. Agent automatic supply device.