JPS589736B2 - Curved decorative board forming equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for forming a curved decorative sheet, and its purpose is to accurately position a decorative sheet on the inner corner surface of a curved base material. The purpose of the present invention is to provide a molding device for bent decorative laminates.

The present invention will be explained in detail below with reference to Examples.

The decorative board has a decorative sheet 4 made of a thermosetting synthetic resin such as melamine on the inner corner surface of a base material 1 whose cross section is bent into a substantially L-shape.
The base material 1 is placed with the protruding corner 6 formed by the long piece 3a and the short piece 3b on a holder 7 having a V-shaped cross section with the inner corner surface 2 facing upward. The tip of the short piece 3b is engaged with the lower surface of the horizontal piece 10 of the L-shaped tool 9 to prevent the base material 1 from falling over and to hold the base material 1 in an accurate position.

The decorative sheet 4 is supplied along the long piece 3a from the outer side of the base material 1 and is superimposed on the inner corner surface 2 of the base material 1. When the decorative sheet 4 is supplied, The guide 5, which can move forward and backward by a reciprocating motor 11 such as an air cylinder installed laterally outside the short piece 3b, is moved from the outside of the short piece 3b over the L-shaped tool 9 to the inner corner surface 2 of the base material 1. That's why.

The guide 5 is formed by arranging a plurality of rods 12 in parallel, and when the guide 5 is advanced onto the inner corner surface 2, the tip of each rod 12 passes over the large corner 13 and reaches the upper surface of the long piece 3a. Long side 3a
The tip of the decorative sheet 4 fed from the end is guided onto the guide 5, and the tip of the decorative sheet 4 is placed on the L-shaped tool 9. From this, along the long piece 3a The tip of the decorative sheet 4 that is advancing hits the top surface of the short piece 3b, and the advancement of the decorative sheet 4 is obstructed, so that the decorative sheet 4 cannot be sent to the correct position on the top surface of the base material 1. This is done so that such a situation cannot occur, and after the tip of the decorative sheet 4 is locked with the L-shaped tool 90, the guide 5 retreats laterally outside the base material 1 to proceed to the next process. Prepare for the future.

That is, when the positioning of the decorative sheet 4 is completed as described above, the forming tool 15 is lowered from above the decorative sheet 4 over the entire length in the longitudinal direction of the base material 1, and the heater 1 at the lower end of the forming tool 15 is lowered.
While bending the decorative sheet 4 at step 6, press it against the inner corner 13 of the inner corner 2 of the base material 1, fix the decorative sheet 4 to the base material 1 with adhesive applied to two inner corner surfaces, and at the same time press the decorative sheet 4 onto the base material 1. 4, and when the molding tool 15 is lowered, this is to harden the molding tool 1.
The mold release tool 17 connected via the five-way link mechanism A moves to the position shown by the dotted line in FIG. 3 in conjunction with the lowering of the molding tool 15, and the end of the long piece 3a The mold release tool 11 moves along the upper surface of the long piece 3a with the inside corner 13 facing away, and as a result, the mold release tool 1 moves toward the corner 13.
5 prevents other parts of the decorative sheet 4 from being adhered to the long piece 3a by the adhesive applied to the top surface of the long piece 3a before the part of the decorative sheet 4 is completely brought into close contact with the other parts of the decorative sheet 4, The sheet 4 is moved toward the inner corner 13 by a necessary distance, and the decorative sheet 4 is brought into complete contact with the inner corner surface 2 without causing distortion.

In the figure, 20 is a stopper provided on the upper surface of the L-shaped tool 9, with which the tip of the supplied decorative sheet 4 comes into contact, and the tip of the decorative sheet 4 sent above the base material 1 is cut into short pieces during molding. As described above, the present invention is designed to supply a lengthwise decorative sheet 4 that is folded back to the tip end surface of 3b. and a molding tool that is movable up and down above the holder in order to press the decorative sheet to the large corner of the base material with the decorative sheet to be attached to the base material placed on top of the base material. When the forming tool is lowered and the forming tool presses the decorative sheet, the decorative sheet is bent and pressed against the large corner of the base material, which not only bends the decorative sheet but also attaches it to the base material. It has a stopper located above the side of the holder to stop the leading edge of the decorative sheet fed from the outside of one piece of the base material so that it is aligned with the end of the other piece of the base material. The tip of the decorative sheet fed from the outside of the piece is stopped by a stopper, and the decorative sheet can be positioned between the base material and one side of the base material. In order to prevent the tip of the decorative sheet from getting into the large corner when the decorative sheet is fed from the outside of the piece, a guide is provided on the stopper side that can move back and forth horizontally to support the decorative sheet. , the leading end of the decorative sheet fed from one side is received by the guide, and the decorative sheet is sent out above the inner corner surface of the base material along the upper surface of the guide, so that the leading end of the decorative sheet can be positioned above the other side. When the decorative sheet is fed, the leading edge of the decorative sheet hits the large corner of the base material located in the direction of travel, and further progress is not hindered, and the decorative sheet is always stuck to the inner corner surface to which the decorative sheet is attached. It has the advantage of being able to accurately position the decorative sheet above the entire surface, thereby ensuring that the decorative sheet can be laminated to the large corner of the inner corner surface mentioned above.

[Brief explanation of drawings]

Fig. 1 is a partial perspective view showing one embodiment of the present invention, Fig. 2a
, b is an explanatory diagram of the same action as above, and Fig. 3 is an explanatory diagram of the action of the same forming tool as above, where 1 is a base material, 2 is an inner corner surface, 3a and 3b are pieces, 4 is a decorative sheet, and 5 is a guide. .

Claims (1)

[Claims] 1. With a holder with a V-shaped cross section on which a base material with an abbreviated cross-section is placed and held, and a decorative sheet to be adhered to the base material on top of the base plate, push the decorative sheet onto the large corner of the base material. A molding tool is placed above the holder so as to be able to move up and down, and a molding tool is used to align the tip of the decorative sheet fed from the outside of one piece of the base material with the end of the other piece of the base material. A stopper is placed above the side of the holder to stop the decorative sheet from touching the tip or large corner of the decorative sheet when it is fed from the outside of one piece of the base material. A forming device for a curved decorative board, characterized in that a guide is provided on the stopper side to support the decorative sheet so as to be able to move forward and backward in the horizontal direction.