Metal mold for producing a synthetic resin molded product in a compression-molding method

• Main Authors: KOBAYASHI, YOSHITAKA, MATSUMOTO, MASAHITO, USUI, NOBUHIRO
• Format: Patent
• Language: English; French; German
• Published: 21.07.1999
• Edition: 6
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention relates to a metal mold for producing a synthetic resin molded product in a compression-molding method. For example, the present invention provides the followings: A metal mold for producing a synthetic resin molded product in a compression-molding method, which is constituted by a pair of male and female molds which are allowed to mutually slide over the entire contact face, with the outer circumferential face of the male mold and the inner circumferential face of the female mold serving as sliding portions at the time of mold-clamping, characterized in that either the male mold or the female mold or both of the molds is constituted by a mold main body and a sliding member that constitutes a portion of the metal mold over the entire sliding portions or on a portion thereof, and in that the sliding member is freely removably attached to the mold main body. In accordance with the metal mold of the present invention, in the case when a synthetic resin molded product without a covering material on its surface and a covering-material affixed synthetic resin laminated product with a covering material on its surface have the same design, a basic mold is commonly used by replacing only the sliding member, without the need for using discrete molding devices corresponding to the respective producing processes; thus, the respective synthetic resin molded products can be obtained in the same manner as the method for using the respectively discrete molds.