Internally coated mold, and internally coating forming method

Details Internally coated mold, and internally coating forming method Internally coated mold, and internally coating forming method

B - Operations, Transporting

29

C

B29C 45/16 (2006.01) B29C 37/00 (2006.01) B29C 43/20 (2006.01) B29C 43/36 (2006.01) B29C 45/26 (2006.01) B29C 33/00 (2006.01) B29C 45/56 (2006.01)

Patent

CA 2453915

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.

L'invention concerne un moule enduit à l'intérieur, ce qui permet d'empêcher à long terme les fuites de peinture susceptibles de se produire à l'occasion d'un procédé d'enduction de l'intérieur d'un moule. L'invention concerne également un procédé d'enduction de l'intérieur d'un moule à l'aide du moule. Une rainure, un élément de pression ou les deux, situés à proximité d'une extrémité de l'empreinte, extrémité adjacente à une partie ajustée de la structure d'appui formée sur toute la périphérie de l'empreinte, servent de moyen permettant d'empêcher les fuites de peinture et ainsi les coulures de peinture de la partie ajustée vers l'extérieur du moule, ce qui permet d'éviter les problèmes comme les effets indésirables sur les objets moulés dus aux coulures de peinture et les dommages de moulage. On obtient ainsi une enduction à l'intérieur du moule qui soit stable à long terme.

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