JPS5911242A - Wooden frame method of woody base material fitting to continuous type postform working - 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] A post-formed product is a wood-based base material that has been processed into a desired shape, and then a thermosetting material such as a melamine resin decorative board, a diallyl phthalate resin decorative board, or a polyester resin decorative board is used. It is often used in places where resin decorative boards are heated, pressed and adhered with rubber adhesive.
For this reason, as shown in Figure 1 as an example of the shape, it is common to have a raised surface called a back guard to repel water. bending of decorative board in the direction with the center of curvature on the surface side)
are very often included. In addition, R (R) means the back of a circular arc surface and a circle.

Currently, the method for creating this internally bent part is: - Create a base material in the final shape, post-form the decorative board and paste it on it. - Cut the raised part of the base material as shown in Figure 2. On the extension line of the flat part, the two parts are combined into one board, and if a decorative board is pasted on the inner radius, a shallow groove is made on the side and the decorative board is pasted to form a stand-up structure. After bending the lower part of the lower part, cut a groove in the base material of the inner R part with a saw, connect the previously made groove with the cut groove of the saw, and divide the base material to make a stand-up machine. There is a method of raising the section as shown in Fig. 3 and inserting a reinforcing member into the base material space to obtain a cross-sectional shape similar to method (2). However, both methods have problems as described below. First of all, regarding ■, as you can see from Figure 1, bending the decorative board that was originally flat and pushing it into the inner radius is due to the rebound of the decorative board and the fact that it becomes diagonal on the base material. The decorative board is adhered to two points, the plane part and the upright part, and it is not easy to do so even if the post form processing machine's guide plate, guide rod release plate, etc. are used to assist.

For this reason, the production speed is slow, and the decorative board adheres when it is halfway inside the inner radius, making it impossible to obtain an accurate radius. There are problems such as cracks occurring in the decorative board when trying to press the board against the base material.

This problem is caused by the so-called fixed-position processing method, in which the post-formed workpiece is placed in a fixed position, the decorative laminate is heated, and then a roll, bar, or other device that presses the decorative laminate onto the surface of the base material is moved. In the rollermatic process, the workpiece is conveyed using a conveyor such as a caterpillar, passes under a heater, and then passes through a large number of bending rolls and auxiliary rods. The same problem occurs in the continuous method of bending decorative boards.

Next, regarding (), it is suitable for production by the so-called rollermatic method, in which bending is performed while being fed by a caterpillar conveyor or other conveyor. 11) Since the bending process and flat bonding can be performed simultaneously, productivity is very high, and as shown in Figure 3, there is no lifting of the bent internal R part along with the base material, and there is no stress on the decorative board during bending. This is an excellent method as there are no cracks since no force is applied, but the base material on both sides of the inner radius is the same board divided, so the thickness and material are exactly the same. .

However, in washstands and washing basins, the thickness of the plates in the flat part and the rising part are different.The raised part is thicker than the flat part, and the difference between the two is usually 6 to 9%. At present, method (2) cannot be used because it is often preferable to change the material of the material.

In order to solve these problems, the present invention has been developed by forming a member of the required type and thickness into a predetermined size and shape, as shown in FIG.
By using the wood finishing method, which involves butting the parts that come together and pasting them onto the decorative board, the two base materials are integrated through the decorative board, allowing you to freely adjust the thickness and type of the base material to suit your purpose. This provides an epoch-making table method that makes it possible to partially select and change the type of substrate thickness in the method (2), that is, the continuous so-called rollermatic method.

(Example) The inner R between the upper part and the flat part is 6R, the upper part of the rising part and the R of the hanging part are 15R, and the thickness of the plywood is 18% for the flat part and the hanging part, and the thickness of the rising part is 15R. When creating a shape made of 24% parallel plywood, each member was given a predetermined shape, and the corner on the surface side of the member that comes to the inner radius was adjusted to a width of 5 (with respect to πR R). -V) A non-adhesive void was created by cutting into a triangular shape with a depth of 1.5% to accurately mold the shape of the inner radius.

Next, butt the base materials to which these parts are to be butted 5 - Apply a water-soluble curing agent (rubber-based quick-curing adhesive/hardening agent for two-component split coating type) to the entire surface of the mating surfaces, and dry. After this, each part was assembled as shown in Figure 5, and then glued together with a post-form type 1.2% melamine resin decorative board and a rubber adhesive, followed by wood finishing.

Using a rollermatic bending device that continuously performs heating and bending, the rounded portions and flat portions at both ends were post-formed (bending and bonding) at a decorative board temperature of 170°C and a bending speed of 7 m/min. ) After machining it into the shape shown in Figure 6, the inner radius bending part is approximately 6mm wide as shown in Figure 7.
The rising part is pressed against a blade equipped with a heating device and has an R tip, and the rising part is bent using a rotating machine equipped with a power cylinder so that the rising part becomes vertical.At the same time, the right angle created in the base material is Insert corner fixing rods coated with quick-curing rubber adhesive onto two adjacent sides of a 18 x 24 x 1200% wooden stick into the gap, press lightly for 2 minutes to complete the adhesion, and obtain the desired stone carving shape. .

This product was used for a bathroom vanity after trimming was performed to remove the decorative board protruding from the base material, and epoxy resin and urethane resin were injected into the gap in the inner R section and cured.

[Brief explanation of the drawing]

All drawings are cross-sectional views for explaining the present invention. Applicant: Sumitomo Bakelite Co., Ltd. 7 - Engraving of drawings (no changes in content) Figure 1 Figure 2 Figure 3 Figure 4 Figure 6 Cause Figure 7 Procedural amendment (method) November 15, 1980 Patent Office Director-General 1. Indication of the case Patent Application No. 119928 of 1982 2. Title of the invention A method of assembling wood base materials suitable for continuous post-form processing 6. Person making the amendment Relationship to the case Patent applicant address 1-2-2-4 Uchisaiwai-cho, Chiyoda-ku, Tokyo Date of amendment order: October 1980 (shipment date) 5. Brief description of drawings in the specification subject to amendment 6. Contents of amendment No. 7 Correct "Drawings" on the 5th line of the page to "Figures 1 to 7." Above 230-

Claims (1)

[Claims] When the base material is assembled by arranging two flat base plates of different thicknesses or materials in parallel and pasting them on a decorative board, the seams of these parallel plates are inwardly bent to form different surfaces. , have surfaces with different base material thicknesses or materials. A method for assembling a wood base material suitable for continuous post form processing, characterized by obtaining a post 7 ohm workpiece.