JP2603157B2 - Manufacturing method of laminated long veneer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention has a smooth surface without distortion.
The present invention relates to a method for manufacturing a laminated long veneer having flexibility, which can be well adapted to corners by sticking to furniture.

[Conventional technology]

The applicant has started to provide a large amount of long veneer rolls made of natural wood of a predetermined width, but the laminated long veneer using the veneer rolls is used for woodwork products such as furniture. It is suitable, and we are now seeing widespread use.

This laminated long veneer is usually formed by laminating 3 to 6 veneers having a thickness of about 0.2 mm to 0.5 mm obtained by cutting a natural tree such as oak or beech with a rotary lace or a slicer. The upper veneer has a finely-grained veneer, like a precious wood, and has no knots.The thickness of the veneer is approximately 2.0 to 4.0 mm. There are problems to be addressed.

[Problems to be solved by the invention]

There are many problems, but among them, the occurrence of distortion of the laminated long veneer, the lack of strength at the time of use, the lack of familiarity with bending to the application surface, and the poor production efficiency can be mentioned. .

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a laminated long veneer which can solve such problems and improve the performance of a laminated long veneer and increase the production efficiency.

[Means for solving the problem]

In order to achieve the above object, a first manufacturing method of a laminated long veneer of the present invention is to remove distortion by softening wood by steaming with a hot press, and to eliminate distortion by rapid cooling with a cold press. A plurality of veneer plates of a predetermined width obtained by performing the fixing process are butted at both ends in a meshing manner by finger processing, and a reinforcing tape is attached to the surface of each butted part to form a long base material Then, on the back surface of the base material opposite to the side where the reinforcing tape is attached, a plurality of veneers obtained by performing hot press and cold press in the same manner as described above, each end face of which is staggered in the length direction. The base material and each veneer plate are integrated by pressing to form a flexible laminate, and each surface of the obtained laminate is ground with a sander, and at the same time, one side is laminated. It is characterized in that the removal by grinding reinforcing tape surface.

Further, the second manufacturing method of the laminated long veneer according to the present invention is a method in which wood is softened by steaming with a hot press to remove distortion, and a process of fixing a state without distortion by quenching with a cold press. A plurality of the obtained veneers having a predetermined width are butted at both ends in a meshing manner by finger processing, a reinforcing tape is attached to the surface of each butted portion to form a long base material, and the obtained base material is obtained. Are bonded to each other on the back surface opposite to the side to which each reinforcing tape is attached, to form a laminate having a thickness of about 1.0 to 2.0 mm.

Further, a third method for producing a laminated long veneer according to the present invention is characterized in that the laminated long veneers obtained by the second production method are laminated and bonded.

Further, a fourth method for manufacturing a laminated long veneer according to the present invention is characterized in that the laminated long veneer obtained in the second invention and the laminated long veneer obtained in the third invention are mutually laminated. It is characterized by being obtained by bonding.

In the present invention, the veneer is obtained by cutting a natural wood such as oak or beech with a rotary lace or a slicer, and such a veneer 1 has an inherent distortion as shown exaggeratedly in FIG. Yes, the strength of the wood is reduced by this distortion or by restoring the distortion.

For this reason, in the present invention, it is essential that the veneer be smoothed by successively applying hot press and cold press, regardless of whether it constitutes a base material or is laminated on the base material.

That is, the wood of the veneer is softened by steaming by the hot press to eliminate the distortion, and then the veneer without distortion is permanently fixed so that the distortion is not restored by the rapid cooling by the cold press. As shown in FIG. 3, a smooth surface having no waving is used as the veneer plate 1.

As a result, by fixing the veneer constituting the base material and the respective veneers to be laminated on the base material in a state in which such distortion does not occur, they can be laminated and bonded to form a laminated long veneer for a long time. It is possible to obtain an excellent laminated long veneer that does not cause distortion even when used.

In addition, the veneer constituting the base material is selected by using a knitted plate having a finer grain than the veneer laminated and adhered to the base material and having no knots, when attached to furniture or the like, so-called, It is preferable because it exerts the same effect as that produced with precious wood.

[Action]

The laminated long veneer obtained according to the present invention has a veneer itself, because the veneer constituting the base material and the veneer laminated and bonded to the base material are sequentially subjected to hot press and cold press. It is possible to stably obtain a laminated long veneer from which inherent distortion has been removed and the surface having no distortion is smooth.

Particularly, in the laminated long veneer according to the first invention, the end faces are staggered in the longitudinal direction so as to be overlapped with each other up and down. It is pressed evenly, and has sufficient strength, smoothness and flexibility by grinding the protruding projections formed on the upper and lower overlapping parts formed by the press, so that the furniture can be attached to corners and the like. It can also be easily adapted.

In each of the inventions of claims 2 to 4, since the base material of the first invention is used as a main part and a laminated long veneer of a predetermined thickness is used, the main parts of the first invention have This is an extension of the function and effect.

〔Example〕

Hereinafter, an embodiment of a method for manufacturing a laminated long veneer according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 9, the laminated long veneer according to the first invention comprises a base member 7 formed long by finger connection of a plurality of veneers 1, 1,. 12 ...
13 (usually 4 to 8 layers, 5 layers in FIG. 9) and a laminated body 13 obtained by laminating and integrating the base material 7. Such a laminated body 13 is shown in FIG. And then used as a laminated long veneer 51.

The veneer 1 constituting the base 7 of the laminate 13 and the veneer 12 provided for lamination are obtained by cutting natural wood with a rotary lace or a slicer, respectively. As shown in FIG. 1, the whole is in a wavy state, and in this state, it is difficult to connect by finger processing.

Therefore, the waving veneer is passed through a press device comprising a hot press 17 and a cold press 18 sequentially as shown in FIG.

That is, this press apparatus is configured by running a hot press 17 and a cold press 18 in series, and running a conveyor belt 19 that moves intermittently as a common base plate on the lower fixed press base plate of both presses 17 and 18. , The conveyor belt 19
A plurality of the punching plates 1 are stacked on top of each other, and the movable press plates above the hot press 17 and the cold press 18 are lowered together with the intermittent stop, and press processing by the hot press and the cold press is sequentially performed.

The thus-obtained veneer 1 or 12 has its inherent distortion removed, and the whole is in a smooth state as shown in FIG.

The thickness of the veneer 1 constituting the base material 7 is 0.2 to 0.6 mm,
It has a width of about 300 mm and a length of about 800 mm to 3600 mm, and has finger processing portions 4 and 4 formed of a large number of parallel triangular teeth in the width direction as shown in FIG. .

The triangular tooth shape formed by the finger processing portion 4 has a length of approximately 15 mm or less, but it is desirable that the lengths are not the same. However, the triangular tooth shape is a perfect fit without moving the pushing plates 1 in the width direction. The shape must match.

The veneers 1, 1 ... formed with the finger processing parts 4, 4 are:
As shown in FIG. 4, a reinforcing tape for engaging the finger-processed portions 4 with each other and for maintaining a meshing state of a non-woven fabric on the surface 2 side thereof as shown by the chain line in FIG. 4 and the solid line in FIG. 5 is stuck to make it long, and it is rolled up sequentially to form a roll body 6 as shown in FIG.
The base material 7 can be obtained by rewinding.

 The thickness of the butting plate 12 is 0.5 to 1.0 mm.

In order to manufacture the laminated long veneer plate 13 shown in FIG. 9 using the base material 7 and the veneer plate 12, the roll body 6 should be arranged such that the surface side on which the reinforcing tape 5 is adhered is the lower side. After cutting to a predetermined length, an adhesive 11 made of a vinyl acetate resin is applied to the back surface 3 on the upper side of the base material 7, and the back surface of the adhesive 11 is coated with the adhesive 11 from the vinyl acetate resin. Veneer of required number of 0.5-1.0mm thickness coated with different adhesive
, As shown in FIG. 7, the end faces 12a are laminated at predetermined intervals in the length direction, and furthermore, on the front surfaces of the abutting plates 12, 12,. .. To which the adhesive has been applied are sequentially laminated with the positions of the ends 12a being staggered as shown in FIG.

After a predetermined number of the veneer plates 12 are stacked in the vertical direction (six layers in FIG. 7), the whole is pressed to form a flexible integrated laminate 13. is there.

The laminate 13 thus obtained is, as described above,
Since the end surfaces 12a of the twelve are vertically overlapped with their positions shifted in the longitudinal direction, there is a protruding portion O on the surface as exaggeratedly shown in FIG. Note that, depending on the wood quality of the veneer, the protrusion may not be formed.

Since the protruding portions O are formed so as to be substantially uniformly dispersed in the longitudinal direction, the upper and lower surfaces of the obtained laminated body 13 are ground by a sander as shown in FIG. At the same time as adjusting the surface to have a uniform thickness, if necessary, the reinforcing tape 5 adhered to the surface 2 of the base material 7 is also removed by grinding to a thickness of about 2.0 to 4.0 mm. It is wound up to form a rolled laminated long veneer 51 as shown in FIG.

FIG. 10 shows an embodiment of the second invention, in which two long veneers 10 obtained by rewinding the roll body 6 obtained in the first invention.
One of the veneers 10 is positioned so that the reinforcing tape 5 is located on the lower side, and the other veneer 10 is located on the upper side, and an adhesive made of vinyl acetate resin is applied to the inner surface of one of the veneers 10. Then, the inner surfaces of the two veneers 10 are adhered to each other with an adhesive coating layer 21 to form a laminate having a thickness of about 1.0 to 2.0 mm and wound up. Long veneer 51
And

FIG. 11 shows an embodiment of the third invention of the present invention.
A long veneer 10 having a thickness of about 1.0 to 2.0 mm manufactured according to the second invention is further laminated on two sheets, and the corresponding inner surface is adhered with a coating layer 31 of a vinyl acetate resin adhesive to form a 2.0 mm.
Winding sequentially while making a laminate of about 4.0 mm thickness, the first
This is a rolled laminated long veneer 51 as shown in FIG.

FIG. 12 shows an embodiment of the fourth invention, and the laminated long veneer 10 having a thickness of about 1.0 to 2.0 mm manufactured according to the second invention.
And two more laminated long veneers having a thickness of about 2.0 to 4.0 mm manufactured according to the third invention, and applying a vinyl acetate resin adhesive to one of the corresponding inner surfaces thereof. Each inner surface of the laminated long veneer is bonded with a coating layer 41 of a vinyl acetate resin adhesive to form a laminated long veneer 51 shown in FIG. 13 having a thickness of about 3.0 to 6.0 mm.

The laminated long veneer manufactured according to the second invention to the fourth invention in FIGS. 10 to 12 is basically laid without scraping off the reinforcing tape 5 by grinding. It is optional to grind one or both of the reinforcing tapes 5 by grinding with a sander.

The roll-shaped laminated long veneer 51 thus manufactured
Is to cut the slices according to the order width and supply the slices.

〔The invention's effect〕

A first aspect of the present invention is a base material having a long length formed by finger-connecting a veneer having a predetermined width from which distortion has been removed by sequentially applying a hot press and a cold press, and connecting the surfaces of the connection portions with a reinforcing tape. And, on the inner surface of the base material, a plurality of veneers, which have also been subjected to a hot press and a cold press sequentially, are stacked one on top of the other with their end faces being staggered in position, and are laminated by pressing. The body is integrally formed, and each surface is ground with a sander to adjust the thickness to a uniform thickness of about 2.0 to 4.0 mm to make a flexible laminated long veneer. A long veneer can be stably obtained.

In particular, since a plurality of veneers laminated on the base material are vertically overlapped with their end faces being staggered in the length direction, the crushed portions at the time of pressing are not substantially the same and are substantially equal. Can be pressed.

In addition, by finishing the protruding portion of the overlapping portion formed by pressing by grinding, it has sufficient strength, smoothness, and flexibility, and can be easily adapted to attaching to furniture corners and the like. You can do it.

The second invention is to produce a laminated long veneer having a thickness of about 1.0 to 2.0 mm by bonding two base materials of the first invention together, and the third invention is to produce a laminated long veneer obtained by the second invention. Two long veneers are laminated and bonded to form a laminate having a thickness of about 2.0 to 4.0 mm.

Furthermore, the fourth invention laminates and adheres the laminated long veneer obtained in the second invention and the laminated long veneer obtained in the third invention,
The laminated body has a thickness of about 3.0 to 6.0 mm.

Since each of the second to fourth inventions has a base material of the first invention or a plurality of veneers laminated on the base material as essential parts, and each has a laminated long veneer having a predetermined thickness, The present invention has an excellent operation and effect which is an extension of the operation and effect of the main part of the first invention.

[Brief description of the drawings]

FIG. 1 is a side view exaggerating the inherent distortion of the veneer, FIG. 2 is a side view of the veneer with the inherent distortion removed by a hot press and a cold press according to the present invention, and FIG.
FIG. 4 is a perspective view showing the formation of the finger processing portion, FIG. 4 is a perspective view showing the connection, FIG. 5 is a longitudinal sectional view of FIG. 4, and FIG. 6 is a perspective view of a roll-shaped base material. is there. 7 to 9 are explanatory views of the embodiment of the first invention. FIG. 7 is a longitudinal sectional view showing a state in which a veneer is laminated on a base material, and FIG. 8 is a longitudinal sectional view of a laminated body obtained by pressing. FIG. 9 is a longitudinal sectional view of the laminate after sanding. 10 to 12 are explanatory views according to embodiments of the second invention to the fourth invention. FIG. 10 is a longitudinal sectional view of the laminated long veneer of the second invention, and FIG. 11 is the third invention. Longitudinal sectional view of a laminated long veneer,
FIG. 12 is a longitudinal sectional view of the laminated long veneer of the fourth invention. FIG. 13 is a perspective view of a rolled laminated long veneer, and FIG. 14 is a front view of a press device showing a series of hot press and cold press. DESCRIPTION OF SYMBOLS 1 ... Veneer plate 2 ... Surface of base material 3 ... Back surface of base material 4 ... Finger processing part 5 ... Reinforcement tape 6 ... Roll body 7 ... Base material 10 ... Long veneer plate 11 ... Adhesive 12 ... Veneer 12a ... End surface 13 ... Laminated body 51 ... Rolled laminated long veneer 61 ... Hot press 62 ... Cold press 63 ... Conveyor belt

Claims (4)

(57) [Claims] 1. A plurality of veneer plates having a predetermined width obtained by applying a process of softening wood by steaming with a hot press to remove distortion and fixing a state without distortion by quenching by a cold press. Both ends are engaged in a meshing manner by finger processing, and a reinforcing tape is attached to the surface of each abutting portion to form a long base material. Similarly, a plurality of veneers obtained by applying hot press and cold press,
The respective end faces are staggered in the longitudinal direction so as to be vertically overlapped with each other and laminated and adhered, and the base material and each veneer are integrated by pressing to form a flexible laminate, and the obtained laminate is obtained. A method for manufacturing a laminated long veneer, wherein each surface of a body is ground by a sander and a reinforcing tape on one surface is removed by grinding. 2. A plurality of veneer plates each having a predetermined width obtained by performing a process of fixing a state of no distortion by quenching by a cold press while softening wood by steaming with a hot press and removing distortion. Both ends are engaged with each other by finger processing, and a reinforcing tape is attached to the surface of each abutting portion to form a long base material. Two of the obtained base materials are opposite to each reinforcing tape attaching side. A method for producing a laminated long veneer, wherein a laminated body having a thickness of about 1.0 to 2.0 mm is formed by bonding back surfaces to each other. 3. A laminate having a thickness of about 2.0 to 4.0 mm by laminating and bonding two laminated long veneers obtained by the method according to claim 2. Manufacturing method of long veneer. 4. A laminated long veneer obtained by the method according to claim 2 and a laminated long veneer obtained by the method according to claim 3 are laminated and bonded to each other. A method for producing a laminated long veneer, comprising a laminate having a thickness of about 6.0 mm.