JPH0295614U

JPH0295614U -

Info

Publication number: JPH0295614U
Application number: JP232289U
Authority: JP
Priority date: 1989-01-11
Filing date: 1989-01-11
Publication date: 1990-07-30

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係る射出成形金型構
造を備えた射出成形金型の縦断面図（第２図の
―縦断面図）、第２図は該射出成形金型の外観
斜視図、第３図は第１図のランナー部分の拡大図
、第４図ないし第７図はその状態変化図、第８図
は本考案の他の実施例に係る射出成形金型構造を
備えた射出成形金型のランナー部の要部縦断面図
、第９図はその状態変化図である。１……射出成形金型、２……固定型、３……移
動型、４……キヤビテイ、５……ゲート、６……
ランナー、７……ホツトランナー、８……樹脂注
入口、９……スプルー、１０……樹脂供給通路、
１１……樹脂滞留部、１２……樹脂取出具、１５
……スプルーロツクピン、１６……ノツクアウト
ピン、１７，１８……ピン嵌挿穴、１９……基板
、３０……樹脂、３１……成形品、３２……残余
樹脂体、３３……劣化樹脂体。 Fig. 1 is a vertical cross-sectional view (-vertical cross-sectional view of Fig. 2) of an injection mold having an injection mold structure according to an embodiment of the present invention, and Fig. 2 is a perspective view of the external appearance of the injection mold. 3 is an enlarged view of the runner portion in FIG. 1, FIGS. 4 to 7 are state change diagrams, and FIG. 8 is an injection mold structure according to another embodiment of the present invention. FIG. 9 is a vertical cross-sectional view of the main part of the runner part of the injection mold, and a diagram showing its state change. 1...Injection mold, 2...Fixed mold, 3...Movable mold, 4...Cavity, 5...Gate, 6...
Runner, 7...hot runner, 8...resin injection port, 9...sprue, 10...resin supply passage,
11...Resin retention part, 12...Resin extraction tool, 15
... Sprue lock pin, 16 ... Knockout pin, 17, 18 ... Pin insertion hole, 19 ... Board, 30 ... Resin, 31 ... Molded product, 32 ... Residual resin body, 33 ... Deterioration Resin body.

Claims

[Scope of utility model registration request]

It consists of a fixed type and a movable type that are abutted against each other.
a hot runner that forms a cavity on the abutting surfaces of the fixed mold and the movable mold, temporarily stores the resin supplied in a molten state, and heats the resin to maintain the molten state; An injection mold comprising a sprue for injecting resin in the runner, a runner serving as a reservoir for the resin injected from the sprue, and a gate for communicating the runner and the cavity in a drawn state. An injection molding apparatus comprising: a resin retention part having a predetermined volume that communicates with the runner at a position near the runner; and a blocking member capable of communicating or interrupting communication between the resin retention part and the runner. Molding mold structure.