Die for injection molding, production apparatus for container made of resin, and plug unit
AssigneeNissei Asb Machine Co., Ltd.
InventorDaizaburo Takehana
Life of this patent
Estimating the term…
Abstract
An injection molding mold including: a flow path through which a molten resin passes; a main body portion including an introduction portion configured to introduce the molten resin into the flow path and a supply portion configured to supply the molten resin from the flow path to a cavity mold; and a plug unit formed with a plug flow path which is a part of the flow path, the plug unit being attachable to the main body portion, in which a prevention portion configured to prevent a pressure loss from occurring when the molten resin passes through the flow path is formed at a portion of the plug flow path where a moving direction of the molten resin changes.
Claims7
An injection molding mold comprising:
- a flow path through which a molten resin passes;
- a main body portion including an introduction portion configured to introduce the molten resin into the flow path and a supply portion configured to supply the molten resin from the flow path to a cavity mold;
- and
- a plug unit formed with a plug flow path which is a part of the flow path, the plug unit being attachable to the main body portion,
- wherein a prevention portion configured to prevent a pressure loss from occurring when the molten resin passes through the flow path is formed at a portion of the plug flow path where a moving direction of the molten resin changes,
- wherein the plug unit includes a plurality of base members,
- wherein the plurality of base members includes:
- a first base member formed with a straight portion of the flow path where the molten resin moves straight;
- a second base member formed with a curved portion of the flow path where the moving direction of the molten resin changes;
- and
- a third base member formed with a branched portion of the flow path where the moving direction of the molten resin branches, and
- wherein the first base member is disposed between the second base member and the third base member.
A plug unit attachable to a main body portion of an injection molding mold in which a flow path through which a molten resin passes is formed, the plug unit comprising:
- a plug main body portion formed with a plug flow path which is a part of the flow path,
- wherein a prevention portion configured to prevent a pressure loss from occurring when the molten resin passes through a part of the plug flow path is formed at a portion of the plug flow path where a moving direction of the molten resin changes,
- wherein the plug unit includes a plurality of base members,
- wherein the plurality of base members includes:
- a first base member formed with a straight portion of the flow path where the molten resin moves straight;
- a second base member formed with a curved portion of the flow path where the moving direction of the molten resin changes;
- and
- a third base member formed with a branched portion of the flow path where the moving direction of the molten resin branches, and
- wherein the first base member is disposed between the second base member and the third base member.
Dependencies are inferred from the claim text.