Traceless stripping forming method for automobile light guide strip
A molding method and technology of light guide strips, applied in optical components, household components, household appliances, etc., can solve the problems of waste of materials, affecting the installation space of light guide strips, etc., and achieve the effect of improving the balance of light guides
Active Publication Date: 2020-11-13
宁波华翔视讯电子有限公司
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Problems solved by technology
However, the ejection edge corresponding to the ejection cavity is distributed on both sides of the light effect area of the light guide strip, and the ejection edge only plays the role of ejection during demoulding in the light guide strip, which wastes a lot of materials and affects The installation space occupied by the light guide strip during assembly
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[0029] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0030] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should not be construed as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, Enlargement or reduction does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings.
[0031] In the drawings of the embodiments of the present invention, the same or similar symbols correspond to the same or similar components; , "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or posi...
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The invention relates to a traceless stripping forming method for an automobile light guide strip. The traceless stripping forming method is applied to a forming mold, and the forming mold comprises afixed mold assembly, a movable mold assembly, an injection device, an ejection device and a mold core assembly, wherein the ejection device comprises a first ejection assembly and a second ejection assembly; and the forming method comprises the steps that a cavity is formed between the movable mold assembly and the mold core assembly, and the cavity comprises a light guide cavity, a support cavity and a connecting cavity; and a hot melting material is injected into the support cavity through the injection device, and the hot melting material fills the whole cavity and then is cooled to form the light guide strip, wherein the light guide strip comprises a light guide body, a support part and a connecting part, the first ejection assembly extends to the end surface of the connecting cavityto form a first ejector pin face on the connecting part, and the second ejection assembly extends to the end surface of the support cavity to form a second ejector pin face on the support part; and after the movable mold assembly and the fixed mold assembly are separated, the first ejection assembly pushes the connecting part to be separated from the connecting cavity along the first ejector pin face, and the second ejection assembly pushes the support part to be separated from the support cavity along the second ejector pin face.
Description
technical field [0001] The invention relates to the technical field of moulds, in particular to a trace-free molding method for an automobile light guide strip. Background technique [0002] Automotive light guide strips are used to transmit light in a directional manner to improve the light efficiency during vehicle driving and improve the user's visual experience. In order to ensure the output light efficiency of the automobile light guide strip, the existing processing mold is provided with a connected ejection cavity on both sides of the cavity for making the light guide strip. The ejection cavity is used to cooperate with the ejection mechanism to eject the light guide strip. In order to avoid the indentation left by the thimble ejection in the light effect area of the light guide strip. However, the ejection edge corresponding to the ejection cavity is distributed on both sides of the light effect area of the light guide strip, and the ejection edge only plays the...
Claims
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IPC IPC(8): B29C45/00B29C45/40B29C45/26B29L31/30B29L11/00
CPCB29C45/0025B29C45/26B29C45/4005B29C2045/0027B29L2011/00B29L2031/30
Inventor 陈嘉展曾杰
Owner 宁波华翔视讯电子有限公司