JPS58209502A - Shaping die for woody decorative board - 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] This invention relates to a mold for forming a decorative wood board.

Conventionally, when manufacturing wood decorative boards with unevenness on the front and back sides, a mold made of a male die with unevenness and a female die paired with the male die is used to produce wood slices coated with adhesive, for example. It was made by pressure forming a pressurized body made of multiple stacked veneers, but during the process from the initial state of being pressed by the male and female dies to the end of the pressing, the wood slice veneer was stretched. If the material exceeds the allowable limit, cracks similar to those caused by tearing occur, making it difficult to obtain a decorative laminate with high surface cosmetic properties.

This invention has been made in view of the above facts, and provides a mold for forming a decorative wood veneer that can be molded without causing cracks in the wood veneer during molding. To provide a mold for forming a wood decorative board, characterized in that it is comprised of a male mold that deforms from a curved shape either up or down to a flat shape when pressure is applied, and a female mold that pairs with the male mold. It is.

Hereinafter, the present invention will be explained based on the drawings of the embodiments.

In the figure wI1, 1 is a male mold, and this male mold 1 has unevenness 2. The male mold 1 has a shape that is curved upward or downward from the center toward both ends, and has the property of deforming into a flat shape when pressure is applied from a flat plate 3 that applies pressure to the male mold 1. It is made of a material such as steel or hard rubber.

Reference numeral 4 denotes a female die that is paired with the male die.The female die 4 has a flat shape without warping as a whole, and has unevenness 5 corresponding to the unevenness 2 of the male die 1.

According to this configuration, when pressure is applied to the flat plate 3, the wooden veneer 6 sandwiched between the male mold 1 and the female mold 4 is
The central unevenness 2 and the central unevenness 5 of the female die 4 contact, and the male die 4
As the warp deforms into a flat shape, the entire surface gradually comes into contact with each other, so the tensile force applied to the wood veneer 6 is reduced, making it possible to produce a crack-free wood decorative board.

Fig. 2 is a front view of another embodiment compared to Fig. 1, in which the flat plate 3 is forcibly bent under pressure by a spiral spring 7 provided in the middle and a bottle 8 provided at both ends. It consists of a male type,
Not only does it exhibit the same effect as the molding die shown in Fig. 1, but the warpage in Fig. 1 may disappear during reversing molding, but the mold in Fig. 2 improves connectivity. It is excellent in that it has

Note that the female mold 4 is not limited to a flat mold as shown in the figure, but may be warped like the male mold. The warp in this case must be the opposite of the warp of the male mold.

[Brief explanation of drawings]

FIGS. 1 and 2 are front views of an embodiment of the invention. Patent applicant Matsushita Electric Works Co., Ltd. Patent attorney Toshimaru Takemoto (two idiots)

Claims (1)

[Claims] (1) A wood decoration characterized by consisting of a male mold that deforms into a flat shape when pressure is applied from a shape that curves upward or downward from the center toward both ends, and a female mold that pairs with the male mold. A mold for forming a plate.