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Metal film for internal mold coating forming

A metal mold and coating technology, applied in the direction of coating, etc., can solve the problems of not revealing the groove of the fitting part, paint leakage, etc.

Inactive Publication Date: 2007-06-20
UBE MASCH CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] This metal mold has a good effect that the paint is not easy to leak even if the scissors are worn, but there is a problem that the paint may leak due to the shrinkage of the resin filled in the auxiliary cavity.
However, this publication does not disclose that a groove is provided near the fitting portion or the end of the lumen adjacent to the fitting portion.

Method used

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  • Metal film for internal mold coating forming
  • Metal film for internal mold coating forming
  • Metal film for internal mold coating forming

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Embodiment Construction

[0043] First, aspects of the present invention will be described. There are broadly two aspects to the invention. The first aspect relates to a metal mold in which grooves are formed around the entire circumference of an end portion of a cavity of a metal mold for in-mold coating molding to prevent paint leakage from occurring, and an in-mold coating molding method using the same. organization. In this aspect, an auxiliary cavity 1 extending along the entire circumference of the inner cavity 5 of the metal mold is formed in the opening and closing direction of the metal mold. The form of forming the groove portion at the position corresponding to the end portion of the inner cavity is also included.

[0044] The second aspect relates to a metal mold for in-mold coating molding, which includes a mold cavity formed by a male mold and a female mold, and an in-mold coating molding method using the metal mold. A paint injection machine for the fitting part of the scissors struct...

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Abstract

An in-mold coat-forming mold and an in-mold coat-forming method are provided, wherein the mold prevents leakage of a coating material for the long term, which is likely to occur when the in-mold coat-forming method is carried out. By disposing a grove, a pressure piece, or both of them so as to serve as coating-material leakage-preventing means, in the vicinity of the edge of a mold cavity adjacent to a shear-structured engaging portion disposed along the circumference of the mold cavity, a coating material is prevented from leaking out of the mold from the engaging portion, and problems such as an adverse affect on a formed product caused by the leaked coating-material and a damage on the mold are prevented, whereby in-mold coat-forming is stably performed for the long term.

Description

[0001] This application is a divisional application of the previous application (application date: July 23, 2002, application number: 02818275.8, title of invention: metal mold for in-mold coating forming and method for in-mold coating forming). technical field [0002] The present invention relates to an in-mold coating molding method, which is to coat the surface of the resin molded product by injecting paint between the resin molded product and the cavity surface of the metal mold after the resin is molded in the metal mold, and hardening it. A metal mold for in-mold coating molding used in an in-mold coating molding method (also called a film or a coating film) and an in-mold coating molding method using the metal mold. Background technique [0003] As a means of improving the decorativeness of resin molded articles using thermoplastic resin as a base material, conventionally, decoration has been often performed by a painting method. [0004] In the conventional coating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/26B29C45/37B29C45/16B29C33/00B29C37/00B29C45/56
CPCB29C2045/1687B29C45/2608B29C45/1679
Inventor 冈原悦雄荒井俊夫奥迫隆小林和明
Owner UBE MASCH CORP LTD