JPS58194504A - Method of changing veneer into stacked flitch - 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 The present invention relates to a method for integrated flitching of veneers.

Laminated decorative veneers are made by pressing and bonding multiple wood veneers with adhesive to form a laminated flitch, and then twisting the laminated flitch in a direction that intersects the laminated surface of each wood veneer. The cut surface is modeled after a tree ring layer. Conventionally, as a method for forming flitches from veneer materials, a method for supplying a top-coated veneer laminate shown in Figure 1 and a method for supplying an under-coated veneer laminate shown in Figure 11g2 have been adopted.

The top-coated veneer laminate supply method shown in Fig. 1 is a veneer laminate 1 called a book in which veneers coated with adhesive are laminated on the upper surface.
is formed, and this is sequentially applied to the upper mold 2a of the curved surface of the press device 2.
In this method, the mold is supplied between the mold 2b and the lower mold 2b. Breath device 2
Now, temporary pressing is performed every time one veneer laminate 1 is brought in. When the press device 2 is opened after preliminary pressing, each veneer laminate 1 has adhesive applied to its upper surface, so
Figure 1 (As shown in Bl, it is attached to the upper a2m and lifted,
The new veneer laminate 1 falls into the 'F type 2b (!!g
Figure 1 (0). However, when the press device 12 is opened to round up the next veneer laminate 1 after performing temporary compression, a part of the adhesive surface between the veneer laminates 1 may peel off due to their own weight. In addition, the entire surface may peel off and fall. Therefore, in order to prevent this, there is a problem that a long period of time is required for temporary pressing.

In the method of supplying a veneer laminate with a bottom plate as shown in Fig. 1g2, since the veneer laminates are stacked one after another on the lower mold 2b, there is no problem of peeling and the temporary pressing time can be shortened. However, since adhesive is applied to the lower surface, it is difficult to handle the veneer laminate 1, and since adhesive is applied to the lower surface and nine veneers are stacked to form the veneer laminate 1, it is difficult to handle the veneer laminate 1. There is a problem that it is difficult to handle.

Therefore, an object of the present invention is to provide a method for forming a veneer into an integrated flitch that can shorten the temporary pressing time and facilitate the handling of veneers and veneer laminates.

An embodiment of this invention is shown in FIGS. 3 and 4. In the figure, reference numeral 3 denotes a veneer conveyor, which is installed following the a-ru coater 4 for applying adhesive. Reference numeral 5 denotes a brace device, which consists of an upper die 5a that moves up and down and a lower die 5b that is fixed. The clamping surfaces of the upper mold 5a and the lower mold 5b are formed into curved surfaces. A push-up member 7 for pushing up the veneer 61 on the conveyor 3 is provided at the terminal position of the veneer conveyor 3, and a suction conveyor 8 is provided movably between the upper part and the press device 5. . The suction conveyor 8 is supported by appropriate guide means and moves. The suction conveyor 8 is formed in a box shape with a suction port on the lower surface, and is connected to a suction device such as a suction fan via a flexible pipe 9. In addition, the g & delivery conveyor 8 has a flang claw i o t'' for an auxiliary kufung. The flang claw 1o is rotated by a cylinder device (not shown). 11 is a preload roll, The preload roll 11 is installed horizontally above the lifting film.
(not shown) and can be raised and lowered.

At the end, a method for forming a flitch assembly will be explained. The veneer 6 is coated with an adhesive 6' (FIG. 4) on its upper surface by the roll boater 4, and is fed and conveyed by the veneer conveyor 3. When reaching a certain position at the end of the veneer transport conveyor 3, the feeding is stopped and the veneer 6 is lifted by the push-up member 7 and pressed against the veneer 6 on the lower surface of the suction conveyor 8! 1 will be given. Therefore, the pressed veneer 6 is adhered to the upper layer veneer 6 with adhesive. On the other hand, the preload roll 11 has been raised together with the push-up member 7, and when the push-up member 7 is lowered, the preload roll 11 runs from the bottom surface of the rumor plate 6 pressed against it. As a result, the veneer 6 is press-adhesively preloaded, and the air on the overlapping surfaces of the veneer 6 is pushed out. By venting the air in this way, it is possible to securely laminate 4 large veneers 6. In addition, the top layer veneer 6 was vacuum-sucked without applying adhesive.
It is held by the suction conveyor 8. In this way, when the veneer laminate 12 of a constant thickness is formed by sequentially pressing the top coated veneer 6 onto the lower surface of the suction conveyor 80, an adhesive t-m is applied to the lower surface of this veneer laminate 12. Thereafter, it is cylindrical with the flang claw 1o and carried onto the lower mold 5b of the 7° restraining device 5 by the movement of the suction conveyor 8. At this time, since the veneers 6 of each layer are pressed and adhered to the veneer 6 of the upper layer with adhesive, there is no problem of falling. Therefore, although the flang claw 10 is not necessarily necessary, the flang claw 10 is provided to ensure reliable holding.

When the veneer laminate 12 is carried onto the lower die 5b of the press device 5, the upper m5af:T is lowered to perform temporary press forming. While this preliminary pressing is being performed, the next stacking operation of the veneer laminate 12 on the lower surface of the suction conveyor 8 is carried out in the same manner as in the ll1I arrangement. Then, the IN-layered veneer laminate 12 is
The laminates are stacked on the veneer laminate 12 on the lower mold 5b of the Lux device i15, and pre-press molding is performed again. In this way, the veneer laminates 12 are successively stacked on the lower die 5b, and when a predetermined number of stages of veneer laminate stoppers 2 are stacked, main compression forming is performed in the press machine [15] to form an assembled flitch. .

The force ζ lower mold 5 in which flitching is performed in this way
This is a method of sequentially stacking the veneer laminates 12 on the veneer laminate 12, which is different from the conventional method shown in FIG.
There is no problem of peeling due to K, and the temporary pressing time is shortened. On the other hand, the veneer laminate 12 is formed by sequentially pressing the veneer 6 onto the lower surface of the suction conveyor 8 by utilizing the tackiness of the adhesive. Therefore, handling is convenient, unlike when using an undercoated veneer. (9) Since the veneer laminate 12 formed on the lower surface of the suction conveyor 8 is conveyed to the t-rolling device 5 after applying adhesive to the lower surface, the veneer laminate 12 formed on the lower surface of the suction conveyor 8 is coated with an adhesive.
2 can be easily handled. Furthermore, since the veneers 6t on the veneer transport conveyor 3 are stacked by being pressed against the lower surface of the suction conveyor 8 by the push-up member 7, by increasing the accuracy of the stopping position of the veneer 6 by the veneer transport conveyor 3, It is possible to improve the lamination accuracy.

As described above, the method of stacking and flipping veneers according to the present invention includes the steps of holding the veneer on the lower surface of the conveyor, and moving a plurality of veneers whose upper surfaces are coated with adhesive onto the lower surface of the conveyor. @The process of pressing the veneer against the lower surface of the distribution veneer to form a veneer laminate, the process of carrying this veneer laminate onto the F-type of the Luss machine using the carrier, and repeating each of the above steps in the same manner as above. Place the veneer laminate formed on the front lower mold on the front lTi1l! Since this method includes the step of piling up the veneers in a stacked veneer warehouse and pressing them using the glazing device to form a flitch assembly, the temporary pressing time is shortened, and the veneers and veneer laminates are easy to handle. There is an effect.

[Brief explanation of drawings]

@Figure 1 ^~ (q is a process explanatory diagram of the conventional method, Figure 2 (N~
(C1 is a process explanatory diagram of another conventional method, FIG. 3 is an explanatory diagram of an embodiment of the present invention, and FIG. 4 is a partial sectional view of the lamination process of the veneer laminate.) 3...Ii Plate conveyance = ff conveyor, 4 river roll coater,
5... Brace device, 6... Single plate, 7... Push-up member, 8... Adsorption carrier, 1o... Flang claw, 11...
... Preload roll, 12 ... Veneer laminate (A) (B) 1st r (A) (B) b (C) b (C)

Claims (1)

[Claims] a step of holding the upper surface of the veneer on the lower surface of the conveyor, and pressing a double-sided veneer with adhesive applied to the upper surface against the lower surface of the veneer on the lower surface of the conveyor to form a veneer laminate. a step of transporting this veneer laminate onto the lower die of the press machine using the carrier, and repeating each of the above steps to transfer the veneer laminate formed in the same manner as 1ItIe to the veneer laminate on the lower die. A method of forming a veneer into an integrated flitch, comprising the steps of stacking the veneer on a laminate and pressing it with the press device to form an integrated flitch.