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Shaping processing product of synthetic resin board and its processing method

A technology of synthetic resin board and processing method, which is applied in the direction of chemical instruments and methods, layered products, metal layered products, etc., can solve the problems of undisclosed shape shaping, the wall thickness of integrally formed products 76 becomes larger, and achieve the desired shape Excellent performance, excellent pattern appearance, and the effect of preventing breakage and resin leakage

Active Publication Date: 2008-01-09
SAKAIYA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In addition, according to the manufacturing method of Cited Document 2, since the molten synthetic resin 74 is injected onto the entire back surface of the film 64 or plate formed by vacuum suction molding, there is a problem that the thickness of the integrally molded product 76 becomes large.
[0015] In addition, in the manufacturing method of Cited Document 2, there is no disclosure of a technique for resisting local shape shaping on the film 64 or plate by a simple method, so it is necessary for the present inventors to develop a completely original technique for synthesizing resin Method for local shape forming of plate

Method used

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  • Shaping processing product of synthetic resin board and its processing method
  • Shaping processing product of synthetic resin board and its processing method
  • Shaping processing product of synthetic resin board and its processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] The shaped processed product 10 of this embodiment is the outer rings 24, 25 of an integrated (diagram) instrument panel equipped with three types of instruments such as a speedometer 21, a tachometer 22, and a fuel gauge 23 of an automobile as shown in FIG. The protruding portion 8 for the connected scale is shaped into the synthetic resin plate 2 on which the above-mentioned dial plate is printed as the protruding partial shape 7 . However, no convex portion for scale is formed on the outer ring 25 of the fuel gauge 23 , and the display of the water temperature gauge 27 is formed in the ring 25 in addition to the fuel gauge 23 .

[0072] The outer rings 24 and 25 of the instruments in the above-mentioned instrument panel 30 are shaped into a protruding shape with a metallic style appearance, and transparent polycarbonate is used as the synthetic resin plate 2, and metal is carried out at the outer ring positions of each instrument on the plate. printing.

[0073] In ...

Embodiment 2

[0078] In addition, in the dashboard 30 shown in FIG. 8 , instead of the metal rings (outer rings 24 , 24 , 25 ) of Example 1, the visible light transmittance is transferred to a transparent polycarbonate sheet as the synthetic resin sheet 2. 30% metal sheet such as aluminum, and then use the above-mentioned method to shape the ring shape of the protruding shape, so that the ring shape can be given a metallic appearance and can be backlit.

Embodiment 3

[0080] In addition, in the instrument panel 30 shown in FIG. 8 , when forming the characters and various warning symbols 28 in the instruments 21, 22, and 23 that can be backlit, transparent polycarbonate printed with black on the surface is used. The paint film thickness of the text part and pattern appearance part on the board is 5-7 μ for the single-color light-transmitting part, and 14.8 μ for the double-color overlapping light-shielding part. The warning symbols 28 and the like are made into outline characters or hollow shapes, whereby backlighting can be realized.

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Abstract

To impart an elaborate feeling or a sharp feeling to a shaped processed product of a synthetic resin sheet for use in the instrument panel of a speedometer, a tachometer and the like of an automobile, a control panel in an air conditioner, a timepiece dial plate, the display plate of a household electric product and the like and to provide the shaped processed product of the synthetic resin sheet capable of being reduced in thickness, reduced in design shift, enabling the use of a metal foil due to a hot stamp or the like and advantageous for page allocation of printing, and its processing method. A local gap 3 is provided to the periphery of the gate port 14 between a fixed mold 11 and the synthetic resin sheet 2 within an injection mold 1 wherein a gate 13 is provided to the fixed mold 11 and a recessed mold 6 is formed to the local part of a movable mold 12. By this constitution, the local part of the synthetic resin sheet 2, which is expanded by the molten resin 4 injected in the gap 3 from the gate port 14, is shaped corresponding to the internal shape of the recessed mold 6.

Description

technical field [0001] The present invention relates to a shaped processed product of a synthetic resin plate and a processing method thereof, whereby instrument panels and air conditioners used as speedometers and tachometers of automobiles, etc. are obtained by performing partial shaping by spray molding of synthetic resin plates Synthetic resin signboards for control panels, clock dials, and display panels for home appliances. Background technique [0002] So far, when manufacturing three-dimensional synthetic resin plate signboards decorated with numbers, characters, scales, etc., such as speedometers, tachometers, or fuel gauges, and various warnings on the dashboard of an automobile, the following methods have been used: It is well known that after heating and softening the synthetic resin plate set in the mold, the vacuum forming method is to suck the synthetic resin plate and form it along the molding surface of the mold; The air (air) pressure (force) forming metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C51/10B29C41/20B29L31/00B32B15/08B29C45/00B29C45/14B29C45/26B29C51/00B32B3/30
CPCB29C45/1418B29C45/14811B29C45/2708B29C45/40B29C2045/14868B29K2105/256
Inventor 中村浩之柴田雅男
Owner SAKAIYA
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