Method for producing molded gasket

摘要

In a method for producing a molded gasket having a surface treated layer on one surface of a substrate and integrally formed with a gasket body constructed by a rubber-like elastic body on the other surface, a first step of integrally molding the gasket body on the substrate, a second step of temporarily placing the molded piece on a placement stand, and a third step of removing a burr portion from a production portion by punching the molded piece are sequentially executed. For preventing foreign material attachment, pollution and scratching, the first step integrally forms a projecting leg portion constructed by a rubber-like elastic body at a position corresponding to the burr portion in the molded piece, the second step brings the molded piece into contact with the placement stand by the leg portion, and the third step removes the leg portion as a part of the burr portion.

主权项

1. A method for producing a molded gasket which is provided with a surface treated layer on one surface in a thickness direction of a substrate and is structured such that a gasket body constructed by an elastic body is integrally formed on the other surface in the thickness direction, comprising:
a first step of integrally molding said gasket body on said substrate which is provided with said surface treated layer; a second step of temporarily placing the molded piece finishing said first step on a placement stand; a third step of removing a burr portion in a peripheral edge from a production portion by punching the molded piece finishing said second step; and sequentially executing the first step, the second step and the third step, wherein said first step integrally forms a projecting leg portion constructed by an elastic body at a position corresponding to said burr portion in said molded piece, said second step brings said molded piece into contact with said placement stand by said leg portion, and said third step removes said leg portion as a part of said burr portion.