Method for manufacturing article and injection molding system
AssigneeCanon Kabushiki Kaisha
InventorsTakamichi Ochiai, Kyosuke Yokotani
Life of this patent
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Abstract
A method of manufacturing an article using injection molding includes a step of injecting resin from an injection nozzle having a valve pin via a resin flow path in a first mold (metal mold) into a cavity in the first mold, a step of inserting the valve pin into the resin flow path, extracting the valve pin from the resin flow path, starting to increase a distance between the injection nozzle and the first mold after extracting the valve pin, and a third step of, after starting to increase the distance between the injection nozzle and the first mold, injecting resin from the injection nozzle via a resin flow path in a second mold into a cavity in the second mold.
Claims20
A method for manufacturing an article using injection molding, the method comprising:
- a first step of injecting resin from an injection nozzle having a valve pin via a resin flow path in a first mold into a cavity in the first mold;
- a second step of, after the first step, inserting the valve pin into the resin flow path, extracting the valve pin from the resin flow path, and starting to increase a distance between the injection nozzle and the first mold after extracting the valve pin;
- and
- a third step of, after starting to increase the distance between the injection nozzle and the first mold, injecting resin from the injection nozzle via a resin flow path in a second mold into a cavity in the second mold.
A method for manufacturing an article using injection molding, the method comprising:
- a first step of injecting resin from an injection nozzle having a valve pin via a resin flow path in a mold into a cavity in the mold;
- and
- a second step of, after the first step, inserting the valve pin into the resin flow path in a state where the injection nozzle and the mold are contacting each other, and extracting the valve pin from the resin flow path,
- wherein the mold has a cold runner structure.
A method for manufacturing an article using injection molding, the method comprising:
- a first step of injecting resin from an injection nozzle via a resin flow path in a mold having a valve pin into a cavity in the mold;
- and
- a second step of, after the first step, inserting the valve pin into a discharge port of the injection nozzle and extracting the valve pin from the discharge port.
An injection molding system comprising:
- an injection nozzle;
- a conveying mechanism configured to convey a plurality of molds;
- and
- an apparatus configured to open and close each of the plurality of molds,
- wherein the apparatus includes a first platen and a second platen,
- wherein the conveying mechanism conveys each of the plurality of molds to a position between the first platen and the second platen,
- wherein the injection nozzle includes a valve pin configured to open and close a resin flow path in the injection nozzle, and
- wherein in a case where the valve pin closes the resin flow path in the injection nozzle, the valve pin protrudes further than an end of the injection nozzle in a case where the valve pin opens the resin flow path in the injection nozzle.
Dependencies are inferred from the claim text.