EP0730984A1

EP0730984A1 - Methods for manufacturing covering panels

Info

Publication number: EP0730984A1
Application number: EP94909361A
Authority: EP
Inventors: Alexandr Sergeevich Mamonov
Original assignee: AKTSIONERNOE OBSCHESTVO OTKRYTOGO TIPA PROIZVODSTVENNO-TORGOVAYA KOMPANIA "AVTOR"
Current assignee: AKTSIONERNOE OBSCHESTVO OTKRYTOGO TIPA PROIZVODSTVENNO-TORGOVAYA KOMPANIA "AVTOR"
Priority date: 1993-11-25
Filing date: 1994-03-01
Publication date: 1996-09-11
Also published as: RU2019426C1; WO1995014581A1

Abstract

The present invention relates to processes for the manufacture of facing panels. The essence of the invention consists in that prior to connecting the facing with the substrate an image on the facing elements is formed by narrowly directed through cutting of the material to ensure the possibility of combining the image without adjusting the facing elements.

Description

BACKGROUND OF THE INVENTION

The present invention relates to processes for the manufacture of facing panels used, in particular, for the manufacture of artistic parquet bodies, facing panels for furniture production, panels for wall facing, etc.
Processes for the manufacture of facing panels have been known, one of which consists in the formation of a facing by the creation of a linkage between separate elements and further connection of the facing with a substrate, and the other consists in the formation of a facing by interconnecting separate elements and further connection of the facing with a substrate (see, e.g., Yu.D. Orlov, Facing Bodies Made of Wood, Vysshaya Shkola Publishers, Moscow, 1968, pp. 186-202 - the analogue and the prototype).
The drawback of known processes is a low production quality consisting in the presence of the adjustment stage with respect to the facing elements while forming an image and the presence of large-sized gaps formed.

SUMMARY OF THE INVENTION

The result which the present invention is intended to achieve resides in the improvement of the quality of a product.
This object can be attained by the fact that prior to connecting the facing with the substrate an image on the facing elements is formed by narrowly directed through cutting of the material to ensure the possibility of combining the image without adjusting the facing elements.
In accordance with another process, interconnection between separate elements is carried out by strips of a flexible material in order to avoid strain, wherein prior to connecting the facing with the substrate an image on the facing elements is formed by narrowly directed through cutting of the material to ensure the possibility of combining the image without adjusting the facing elements.
Narrowly directed through cutting of the material is carried out by laser radiation and wood is used as the material of the facing elements.
Sticky tape or paper is used as strips of a flexible material, wherein at least two strips are used on the right side and one strip - on the wrong side.
Also, several face layers made of elements of different wood species are formed to create a combined image texture.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Processes for the manufacture of facing panels are carried out in the following way.
At first, an artistic composition of the image is made and entered into the memory of an NC-unit by means of a graphics editor of AUTOCAD, the image is divided into separate elements which, depending upon the image character, may be square, in the form of polygon, segment, etc.
Each element in turn is divided into parts, each of them may also have various geometric forms, for example, square, segment, etc., and can be made of any one wood species.
Next, a face layer of each part is formed, wherein facing elements are based over one corner and two adjacent thereto sides of the part, for example, of the square, aligning all ends of the layer elements.
Then, separate elements of the facing are connected to each other by gluing, for example, two strips of sticky tape or paper onto the right side and one strip onto the wrong side, in the space therebetween. (Claim 2.)
In accordance with another process (Claim 1), a linkage between separate elements is formed by, for example, spring-loading thereof in interperpendicular direction.
At the same time, the disposition of the tapes rules out displacement of the elements and warping of the facing upon drying out of the tapes, thus eliminating distortion of the image obtained.
Further, the facing (or a part thereof) so obtained is positioned on a working place, coordinated with base sides in relation to the axes of the working place and an image is formed by a laser radiation source under the program stored in the computer. The same operation is performed with respect to the face layers those elements are made of different wood species.
Following accomplishment of through cutting, upon which small width cuts are formed, and removal of cut-out figures, the transposition of those figures is carried out depending on the required image (for example, according to color). While transposing, a figure can be arranged, among other things, with another surface, which makes it possible to change a texture, i.e., improves the artistic scopes for panels.
Connection of the facing obtained with the substrate may be performed by molding under a specific pressure of about 1.4 MPa.
The panels so obtained are placed in pairs, for example, in a glue assembly frame for wooden articles with their faces towards each other, pressure is exerted in the range of (0.5 - 0.8)P (where P - a compression molding pressure) to mutually hold them out, and they are allowed to stand for 2 - 24 hours.
Pressure and dwelling time limits depend upon thickness and dimensions of panels, which provides for step-by-step reduction of internal stresses originating in the molding process and later on, as well as reduction of the probability of warping of ready-made panels.
The present invention improves the quality of panels.

Industrial Applicability

The present invention can be used in the manufacture of artistic parquet bodies, ornamental plaques, plaques for furniture production and special ornamental bodies.

Claims

A process for the manufacture of facing panels comprising the steps of:
forming a facing by the creation of a linkage between separate elements;
connecting the facing with a substrate;
characterized in that prior to connecting the facing with the substrate an image on the facing elements is formed by narrowly directed through cutting of the material to ensure the possibility of combining the image and to avoid adjustment of the facing elements.
A process for the manufacture of facing panels comprising the steps of:
forming a facing by interconnection of separate elements;
connecting the facing with a substrate;
characterized in that interconnection between separate elements is carried out by strips of a flexible material in order to avoid strain, and prior to connecting the facing with the substrate an image on the facing elements is formed by narrowly directed through cutting of the material to ensure the possibility of combining the image and to avoid adjustment of the facing elements.
The process of claims 1, 2, characterized in that narrowly directed through cutting of the material is carried out by laser radiation and wood is used as the material of the facing elements.
The process of claims 2, 3, characterized in that sticky tape or paper is used as strips of a flexible material, wherein at least two strips are used on the right side and one strip - on the wrong side.
The process of claims 1 - 4, characterized in that several face layers made of elements of different wood species are formed to create a combined image texture while transposing a cut-out material.