JPS58180263A - Method and device for coating adhesive agent - Google Patents

Abstract

PURPOSE:To improve working efficiency, by coating an adhesive agent only on the required surface of unit bodies continuously and passing the unit bodies which are not coated with the adhesive agent continuously through the rolls at the same speed as the speed of the unit bodies coated with the adhesive agent by changing over the rolls. CONSTITUTION:In a method for coating an dhesive agent on plural sheets of unit bodies 1 such as laminates, veneers or longitudinally joined veneers in order to laminate and adhere the same in the thickness direction, a pair of rolls 2, 3 between which the bodies 1 are passed longitudinally and which coat the adhesive agent on both top and bottom surfaces of only on one surface as well as a pair of rolls 4, 5 which are supported by the same fulcrum shafts 6, 7 as for said rolls 2, 3 and which permit the passage of the unit bodies therethrough without coating the adhesive agent thereon are juxtaposed. The juxtaposed rolls are moved simultaneously in the fulcrum shaft direction, whereby the rolls through which the unit bodies pass through are changed over as desired so as to allow the unit body coated with the adhesive agent on the optional surface and the uncoated unit body to pass therethrough continuously. The stage for coating the adhesive agent on the unit body is thus automated, the manpower for said stage is saved and the working efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present description relates to an adhesive application method and apparatus for producing a laminate such as a laminated timber or a laminated veneer.

Prior Art Conventionally, in applying adhesive to this type of laminate, units such as laminates, veneers, or vertically spliced veneers are passed one by one between coating rollers, adhesive is applied, and then a predetermined number of laminates are coated with adhesive. The units are stacked to form a lower laminate. At this time, no adhesive is applied to the upper surface of the uppermost layer's unit and the lower surface of the lowermost layer's unit. ).

A method has been used in which a large number of these laminates are further stacked inside a frame and sent to a process of being compressed and heated and hardened. However, this method has the disadvantage that it requires manpower, has poor work efficiency, and is unsuitable for mass production.

Purpose: In view of the above-mentioned drawbacks, the present invention automates and saves labor in the process of applying adhesive to unit units, thereby increasing work efficiency.

The present invention relates to an adhesive coating method and an apparatus for the same, which enable continuous mass production of a wide variety of laminates.

EXAMPLE 9 The present invention will be described below with reference to the accompanying drawings, which are one example.

1, 2, and 3 show the configuration of rollers for applying adhesive, in which the unit 1 consists of two pairs of upper and lower adhesive application rollers 2.3 and a non-applying roller that can pass in the vertical direction (arrow A). 4,
5, respectively 2 and 4, 3 and 5 by the support shaft 6.7
Since they are coaxial, they are interlocked and can be rotated in one direction, and are also interlocked in the direction of the support shaft, making it possible to switch the rollers that the unit passes through.

The roller 4.5 is a unit, similar to the t-rolling roller 2.3 for process continuity, and is only for passing between the rollers. Adhesive supply means 8 and 9 are installed on the rollers 2 and 3, and when the unit is inserted between the rollers 2 and 3, adhesive is applied to one side or both sides as necessary. For example, when manufacturing a laminated veneer material consisting of five vertically spliced veneers, the first four vertically spliced boards are conveyed by a belt conveyor until the tip of the unit reaches the roller, and the adhesive application roller 2, 3 and apply adhesive to the upper surface, then temporarily stop conveyance of the unit F and move the entire roller in the direction of the support shaft.

After the switching is completed, the fifth vertical veneer is then inserted between the non-coated rollers 4 and 5. The non-applying roller 4.5 is caused by the conveyance of the unit 1, the insertion between the adhesive application rollers 2 and 3, and the temporary stop of the conveyance and the movement of the rollers 2 and 3 in the direction of the spindle. , resuming conveyance of unit body 1, and simultaneously stopping conveyance,
The series of operations of switching to the adhesive application rollers 2 and 3 by moving in the spindle direction of 4.5 (opposite direction from the previous direction) is considered to be one cycle, and can be repeated as many times as necessary.

Further, it is possible to continuously operate any combination of the number of coated sheets and the number of uncoated sheets. Two pairs of application rollers are arranged in parallel on the same support shaft.

A separate pair of rollers is used for painting both sides and the top surface.

Of course, it is also possible to configure a total of three pairs of parallel rollers ζ including one for non-coating.

Effects As is clear from the above explanation, according to the present invention, unit bodies such as laminates, veneers, vertically spliced veneers, etc. constituting laminates such as laminated wood and laminated veneer materials can be continuously formed on the necessary surface. The adhesive is applied only to the laminate, and the rollers are continuously passed through the units that are not coated with adhesive by changing the rolls at the same speed as the units that are coated with adhesive. By arranging the apparatus of the present invention in the agent coating process and using the method of the present invention, it is possible to automate and save labor to improve work efficiency and continuously manufacture laminates of various configurations.

[Brief explanation of the drawing]

The drawings show an apparatus for the adhesive application process according to the present invention, in which Fig. 1 is a perspective view, Fig. 2 is a front view thereof, and Fig. 3 is Fig. 2B.
-C line sectional view. 1...Unit body 2...Applying roller 3--
・Applying roller 4...Non-coating roller 5...Non-coating roller 6...Spindle 7...Spindle
8... Adhesive supply means 9... Adhesive supply means drawing IF (no change in content) m ±3ea Procedural amendment order (method) % formula % 1゜ Indication of case Patent application No. 1988 No. 64368 2 Title of the invention Adhesive application method and device 3
Relationship with the amended person case Patent applicant address 14-2917 Kinbun-cho, Asahikawa, Hokkaido
Target of amendment “Application--1-11” “Drawings” (no change in content)

Claims (1)

[Claims] l) In a method of applying adhesive for laminating and adhering a plurality of units such as laminar, veneer, vertically spliced veneer, etc. in the thickness direction, the unit is inserted in the longitudinal direction. , A pair of rolls in which adhesive is applied to both the upper and lower surfaces or only one side, or two pairs of rolls parallel to each other on the same spindle, and the unit is inserted through the unit without applying adhesive on the same spindle as these pair or two pairs of rolls. A pair of rolls are provided in parallel, and these parallel 2~
By simultaneously moving the three pairs of rolls in the direction of the spindle, the roll through which the unit body is inserted can be arbitrarily switched and the adhesive can be applied to any surface. Continuous adhesive application method. 2) Adhesive supply that allows the two-position body to be inserted vertically in a device that applies adhesive in order to laminate and bond multiple pieces of laminar, veneer, vertically spliced veneer, etc. in the thickness direction. The means were set up. A pair of upper and lower rolls or two pairs of rolls parallel to each other on the same spindle, and these one or two pairs of rolls and a pair of upper and lower uncoated rolls on the same spindle are provided in parallel, and these two to three pairs of rolls are arbitrarily arranged. Adhesive applicator that switches between passing units to apply adhesive or continuously passing units that are not coated.