Injection molding apparatus and cap member
AssigneeSeiko Epson Corporation
InventorsRíona Hayashi, Kenta Anegawa, Kakeru Sasagawa, Hiroki Takano
Life of this patent
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Abstract
An injection molding apparatus including a fixed die including a gate via which a molding material flows in, a movable die that forms along with the fixed die a cavity and separates from the fixed die at a point of time of mold opening, an open-gate hot runner that includes a nozzle including a channel that guides the molding material to the gate and a heater that heats the channel, the hot runner being attachable to and detachable from the fixed die, and a cap member that is disposed between the fixed die and the hot runner and has a melting point higher than a melting point of the molding material.
Claims12
An injection molding apparatus comprising:
- a fixed die including a gate via which a molding material flows in;
- a movable die that forms along with the fixed die a cavity and separates from the fixed die at a point of time of mold opening;
- an open-gate hot runner in the fixed die, wherein the open-gate hot runner includes:
- a main body;
- a nozzle including a channel that guides the molding material to the gate, wherein the nozzle is disposed at an end portion of the main body;
- and
- a heater that heats the channel, the open-gate hot runner being attachable to and detachable from the fixed die;
- and
- a cap that is disposed between the fixed die and the open-gate hot runner and has a melting point higher than a melting point of the molding material, wherein the cap is in contact with each of the fixed die, the main body of the open-gate hot runner, and the nozzle.
A cap used in an injection molding apparatus including
- a fixed die including a gate via which a molding material flows in;
- a movable die that forms along with the fixed die a cavity and separates from the fixed die at a point of time of mold opening;
- and
- an open-gate hot runner in the fixed die, wherein
- the open-gate hot runner includes:
- a main body;
- a nozzle including a channel that guides the molding material to the gate, wherein the nozzle is disposed at an end portion of the main body;
- and
- a heater that heats the channel, the open-gate hot runner being attachable to and detachable from the fixed die,
- the cap is disposed between the fixed die and the open-gate hot runner,
- the cap has a melting point higher than a melting point of the molding material, and
- the cap is in contact with each of the fixed die, the main body of the open-gate hot runner, and the nozzle.
Dependencies are inferred from the claim text.