Method of resin molding and resin molding machine for the same
AssigneeApic Yamada Corporation
InventorFumio Miyajima
Life of this patent
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Abstract
A method and apparatus for resin molding upon an insert-member. The molding machine includes an upper die and a lower die, a cavity in at least one of the dies, a pot in which resin is introduced, and a resin path which allows the resin to flow from the pot into the cavity and onto the insert-member set in the dies. A film member is set between a parting face of the die and the insert-member. The film member covers a part of the insert-member corresponding to the resin path. An edge of the film member coincides with at least one of side edges of the cavity. The insert-member is clamped by the dies together with the film member when molding occurs.
Claims20
A method of molding upon an insert-member in a resin molding machine, the resin molding machine including an upper die and a lower die, a cavity in at least one of said upper die and said lower die, a pot in which resin is introduced, and a resin path which allows the resin to flow from said pot into said cavity and onto said insert-member set in said dies,
- said method comprising the steps of:
- setting a film member between a parting face of said die, in which said resin path is formed, and said insert-member so as to cover a part of said insert-member corresponding to said resin path, wherein an edge of said film member coincides with at least one of said edges of said cavity;
- clamping said insert-member by said dies together with said film member;
- and
- filling said resin into said cavity via said resin path.
A resin molding machine, comprising:
- an upper die and a lower die for clamping an insert-member to be molded upon, said dies having a pot, a resin path and a cavity, wherein resin in the pot is introduced into the cavity via the resin path, and the resin flows upon the insert-member set in said dies;
- and
- a film feeder for feeding a film member between a parting face of said die, in which the resin path is formed, and the insert-member so as to cover a part of the insert-member corresponding to the resin path, said film feeder positioning an edge of the film member to coincide with at least one of side edges of said cavity,
- wherein an end of a gate of the resin path is connected with the at least one side edge of the cavity.
A resin molding machine, comprising:
- an upper die and a lower die for clamping an insert-member to be molded upon;
- a plurality of rectangular cavities formed within one of said upper and lower dies, said plurality of rectangular cavities being arranged such that one edge of each of said plurality of cavities is linearly aligned with one edge of each of the other of said plurality of rectangular cavities;
- at least one pot formed within said one of said upper and lower dies;
- a plurality of resin paths fluidly communicating said at least one pot to each of said plurality of rectangular cavities, each resin path of said plurality of resin paths fluidly communicating with a respective rectangular cavity along the edge of the respective cavity which is linearly aligned with the other edges of the other cavities;
- and
- a release film covering said plurality of resin paths, said release film having a linear edge which is substantially linearly aligned with the linearly aligned edges of said plurality of rectangular cavities.
Dependencies are inferred from the claim text.