JPH05278009A - Production of grooved decorative panel - Google Patents

Abstract

PURPOSE:To form random grooves to bring about appearance rich in three-dimensional feeling or change by allowing the longitudinally spliced parts and groove carved parts of wooden veneers to coincide with each other on the surface of a wooden decorative panel and also providing grooves to other parts. CONSTITUTION:The short side parts of two long wooden veneers 31, 32 are longitudinally spliced to a long substrate 1 and the other ends thereof are allowed to protrude from both short side parts of the long substrate 1 to be bonded and, thereafter, wooden veneers 41, 42 are arranged in parallel to the wooden veneers 31, 32 and the short side parts thereof are longitudinally spliced at a position 43 different from the longitudinal splicing part 33 of the wooden veneers 31, 32 and this operation is repeated to cover the surface of the long base material 1 with wooden veneers. Subsequently, the end parts of the wooden veneers protruding from the long base material 1 are cut and, thereafter, grooves 6 parallel to the mutual adjacent parts in the longitudinal direction of the wooden veneers are provided by a plularity of carving knives and grooves 7 are applied to the wooden veneers in the short side direction thereof on the basis of the longitudinal splicing parts 33 of the wooden veneers by a plurality of other carving knives and, at the same time, grooves 71, 72, 73 parallel to longitudinally spliced parts 33, 34 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing random grooves on a wooden decorative board such as a floor board or a wall board with good productivity.

[0002]

2. Description of the Related Art Conventionally, in order to give a three-dimensional appearance and a varied appearance to a wooden veneer, a groove is cut in the adjacent portion of the wooden veneer in the longitudinal direction, and two or more pieces are also provided in the lateral direction. Some have random grooves.

As a method for grooving the above-mentioned wooden decorative board,
Three or more wood veneers are vertically spliced and bonded on a long board,
Alternatively, three or more long wood veneers are vertically spliced in advance and stacked on a long board, and then the adjacent parts in the longitudinal direction of the wood veneers are cut to form grooves, while the short direction A groove is also cut into each of the vertical joints.

[0004]

However, in the case where a groove is cut in a vertical joint of a plurality of wood veneers, in order to improve productivity, a plurality of cutting blades are provided in each vertical joint. Using a cutting device installed at a predetermined interval so that it is located at the position, move it parallel to the short direction of the wood veneer with one longitudinal joint as a reference, and simultaneously cut other longitudinal joints. Is taken,
In other vertical joints, the position of the groove and the position of the vertical joint of the wood veneer often shift, which is a drawback in that the appearance is unsightly.

This is because there is a limit to the accuracy of expansion and contraction and vertical connection due to moisture absorption and desorption of the wood veneer.

[0006] On the other hand, it is practically impossible from a production point of view to set and adjust the reference for each of the longitudinal joints and perform accurate cutting.

The present invention has been made in view of the above problems, and ensures that one longitudinal joint portion and the groove cut portion are aligned with each other, and that a groove is also provided in another portion of the wood veneer. Thus, the present invention provides a method for producing a grooved decorative board that forms random grooves on a wooden decorative board and produces a three-dimensional appearance and a variety of appearances.

[0008]

Therefore, according to the method of manufacturing a grooved decorative board of the present invention, the short side portions of two long wood veneers are vertically spliced on a long board, while After projecting the ends from both short side portions of the long board and adhering them, the other two wood veneers are sequentially arranged in parallel with the wood veneer and at a position different from the vertical connection position of the wood veneers. While the short sides are vertically connected, the other end is projected from both short sides of the long substrate and adhered to each other, and the surface of the long substrate is covered with a large number of wood veneers. After cutting the end of the wood veneer protruding from the length board, a plurality of cutting blades provided at the width intervals of the wood veneer to make parallel grooves in the longitudinal adjacent parts of the wood veneers. Simultaneously with making a groove in the longitudinal joint portion of the wood veneer with a plurality of other cutting blades provided at predetermined intervals in the longitudinal direction of the plate as a reference. The vertical joints parallel to at least one groove is made by providing the lateral direction of the wood veneer.

[0009]

With the above structure, a groove is provided at the position of the vertical joint portion of the wooden veneer by the cutting device in which the cutting blades are attached at predetermined intervals with reference to the vertical joint portion of one place between the wooden veneers. At the same time when the wood veneer is cut, grooves are also cut in other parts in the lateral direction of the wood veneer, and grooves are provided at a plurality of locations in the vertical joints of the wood veneer and other parts.

At this time, since one of them is positioned and cut in the vertical joint portion of the wood veneer, the groove and the vertical joint portion are not displaced.

Moreover, since the positions of the vertical joints of adjacent wood veneers are different, the grooves do not line up in a straight line, and a large number of random grooves are formed on the wood veneer to provide a variety of appearances. ..

[0012]

EXAMPLES Next, examples will be described with reference to FIGS. 1 to 5 of the present invention.

FIG. 1 shows a wood decorative board A manufactured according to the present invention, in which a wood single board 31, 32, 4 is provided on the surface of a long substrate 1.
1, 42, 51, 52 are attached to the grooves 6, 6 parallel to the longitudinal direction, and the grooves 7, 7, 7 in the longitudinal joints 33, 43, 53 and the other positions 71, 72, 73. A groove is formed.

FIG. 2 shows a step of adhering a single row of wood veneer having a width obtained by dividing the long substrate 1 into three equal parts in the short side direction onto the long substrate 1, and the two long substrates are bonded together. Simple wood veneer 3
One end of each of 1 and 32 is vertically connected on the long substrate 1 to form a vertical joint portion 33, and the other end 34 is projected from the short side portion 11 of the long substrate 1 and adhered thereto. The wood veneers 31 and 32 may be integrated with an adhesive before being loaded on the long substrate 1.

The long substrate 1 is a single or multi-layered body such as plywood, particle board and MDF, and the long substrate 1 and the wood veneers 31 and 32 are bonded to each other with phenol, urea, melamine, resorcinol, acrylic. A synthetic resin adhesive such as vinyl urethane is used.

After the wood veneers 31 and 32 are bonded, as shown in FIG. 3, a position 4 where they do not linearly overlap the vertical joint 33.
3 wood veneer 4 with the same width as wood veneer 31, 32
One end of each of 1, 42 is vertically connected, and the other end 44 is protruded from the short side 11 of the long substrate 1 and bonded. Then, as shown in FIG. 4, the wood veneers 51 and 52 are operated in the same manner as described above,
The vertical joint portion 53 is formed and adhered.

In the present embodiment, the surface of the long substrate 1 was covered with the wood veneer of equal width by three operations, but the mode of dividing the long substrate 1 in the short side direction is arbitrary, for example, divided into two equal parts. It can be divided into 4 equal parts, large / medium / small, large / small / large repetition.

Next, the wood veneers 34, 44, ... Projecting from the short side portion 11 of the long substrate 1 are cut and aligned with the short side portion 11 of the long substrate 1. At this time, the short side portion 11 of the long substrate 1 may be cut together, and in short, a straight line that serves as a guide when positioning a cutting tool to be described later on the vertical joint portions 33, 43, 53. The reason is that the short-side portion 11 of the long substrate 1 is provided with a flatness and a right angle.

Groove cutting is performed by using a cutting blade (not shown) made of a rotary cutting body such as a plurality of routers or cutters provided at intervals of the width of the wood veneer to adjoin the wood veneer in the longitudinal direction. The parallel grooves 6 and 6 are provided.

Next, another plurality of cutting blades (not shown)
One of the cutting tools is a vertical joint portion 33 of the wood veneer.
43, 53 are positioned to serve as a reference, and the grooves 7,
At the same time as cutting 7, 7, wood veneer 32, 41, 52
Grooves 71, 72, 73 are cut into.

[0021] The cutting work of the vertical joint may be carried out for each row of veneers sequentially in the first row, the second row, etc., but in order to increase the productivity, a long cutting blade is used. The substrate 1 is cut by a cutting device arranged in a plurality of rows in the short side direction. At that time, in the work of adhering to the long-sized base material 1, the next vertical joint portion 43 is provided at a predetermined distance from the vertical joint portion 33 of the first row as a reference, and accordingly, the second vertical joint portion 43 is provided. If the cutting tool is set at the same distance as described above, the vertical joint portion 43 and the cutting position can be surely matched with each other without being influenced by the expansion and contraction of the single plate.
Similarly, if the vertical joint portion 53 is also positioned, the vertical joint portion 33,
The grooves 7, 7, 7 of 43, 53 and the grooves 71, 72, 73 are formed simultaneously at positions different from the vertical joint portion.

Incidentally, contrary to the above-mentioned embodiment, the grooves 7, 7, 7, 71, 72, 73 in the short direction may be first cut, and then the grooves 6, 6 in the longitudinal direction may be provided. It is appropriately selected depending on the line layout.

[0023]

As described above, according to the method for manufacturing a grooved decorative plate of the present application, a cutting device in which a plurality of cutting blades are attached at predetermined intervals based on one longitudinal joint is used. Since the groove is cut in the vertical joint in the short direction of the wood veneer, the groove and the vertical joint are not displaced, and other grooves are cut in the wood veneer.
Moreover, the vertical joints of the wooden veneer boards that are juxtaposed are staggered so that they do not line up in a straight line, and random grooves are cut in addition to the vertical joints, giving a variety of appearances. ..

Therefore, it is possible to enhance the productivity without much needing the precision of cutting the groove in the lateral direction of the wood veneer, and even if the wood material expands and contracts due to moisture absorption and desorption, the groove and the vertical joint portion. The quality control, such as storage of wood veneer, is easy without slipping.

[Brief description of drawings]

FIG. 1 is a plan view of a grooved decorative plate according to the present invention.

FIG. 2 is a plan view showing a manufacturing process of a grooved decorative plate according to the present invention.

FIG. 3 is a plan view showing a manufacturing process of the grooved decorative plate according to the present invention.

FIG. 4 is a plan view showing a manufacturing process of a grooved decorative plate according to the present invention.

[Explanation of symbols]

 A ... Wooden decorative board 1 ... Long board 31,32,41,42,51,52 ... Wood single board 33,43,53 ... Vertical joint part 6,7,71,72,73 ... Groove

Claims (1)

[Claims] 1. A short side portion of two long wood veneers is vertically spliced on a long substrate, and the other end is projected from both short side portions of the long substrate and bonded to the long substrate. Sequentially, the other two wood veneers are juxtaposed with the wood veneer, and the short sides are vertically connected at a position different from the vertical connection position of the wood veneers, while the other end is connected to both sides of the long board. After adhering by projecting from the short side portion, the surface of the long substrate is covered with a large number of wood veneers, and then the ends of the wood veneers protruding from the long substrate are cut off, and then the wood veneer is cut. With a plurality of cutting blades provided at a width interval of the wood veneer to provide a parallel groove in the adjacent portion in the longitudinal direction of the wood veneer, the other by a plurality of cutting blades provided at a predetermined interval in the longitudinal direction of the wood veneer A groove is formed in the vertical joint portion of the wood veneer as a reference, and at the same time at least one groove parallel to the vertical joint portion is provided in the lateral direction of the wood veneer. For manufacturing a decorative board with a groove.