JPS61192821U

JPS61192821U -

Info

Publication number: JPS61192821U
Application number: JP7869985U
Authority: JP
Priority date: 1985-05-27
Filing date: 1985-05-27
Publication date: 1986-12-01

Description

[Brief explanation of the drawing]

第１図〜第３図は本考案の一実施例を示し、第
１図は分割型を型開く前の状態の要部の断面図、
第２図は分割型が僅かに型開いた状態の要部の断
面図、第３図はコアが揺動した状態を示す要部の
断面図である。第４図は本考案の異なる実施例を
示し、第１図相当図である。第５図及び第６図は
従来を示し、第５図は強制抜き方式の成形型の要
部の断面図、第６図は傾斜押出方式の成形型の要
部の断面図である。図中、１は成形型、２は分割型、２０はコア収
納空間、２１は主型部、２２はコア、２３はスプ
リング（付勢部材）、２４は第１傾斜面、２７は
第２傾斜面、２９はアンダーカツト部、３は分割
型、４は軸部、５は貫通孔、６はストツパ部、７
０〜７３は間隙を示す。 Figures 1 to 3 show an embodiment of the present invention, and Figure 1 is a sectional view of the main parts of the split mold before opening;
FIG. 2 is a cross-sectional view of the main part in a state where the split mold is slightly opened, and FIG. 3 is a cross-sectional view of the main part showing a state in which the core is swung. FIG. 4 shows a different embodiment of the present invention, and is a diagram corresponding to FIG. 1. FIG. 5 and FIG. 6 show the conventional method. FIG. 5 is a sectional view of the main part of a mold for forced ejection, and FIG. 6 is a sectional view of the main part of a mold for inclined extrusion. In the figure, 1 is a mold, 2 is a split mold, 20 is a core storage space, 21 is a main mold part, 22 is a core, 23 is a spring (biasing member), 24 is a first slope, 27 is a second slope 29 is an undercut portion, 3 is a split type, 4 is a shaft portion, 5 is a through hole, 6 is a stopper portion, 7
0 to 73 indicate the gap.

Claims

[Claims for Utility Model Registration] (1) In a mold consisting of at least two divided molds, one divided mold is provided with a core storage space having a first inclined surface that widens toward the mold dividing surface side. a main mold part, a second inclined surface that is detachably stored in the core storage space and abuts the first inclined surface of the main mold part;
a core having an undercut portion formed on a side surface opposite to the inclined surface; and a core interposed between the core and the main mold part, and arranged in a direction in which the core is stored in the core storage space of the main mold part. and a biasing member that biases the mold, and when the molded product molded with the mold is released from the split mold, a gap is created between the first slope of the main mold part and the second slope of the core. A molding die having a core, wherein the core swings toward the first inclined surface and separates from the molded product. (2) The main mold part of the split type 1 has a through hole communicating with the core storage space, and the core has a shaft part having a small outer diameter that can be tilted relative to the hole diameter of the through hole, and a shaft part of the shaft part. It has a stopper part provided at the tip,
The molding die having a core according to claim 1, wherein the biasing member is constituted by a spring held in a compressed state between the bottom surface of the core around the through hole and the stopper portion. .