JPS6256267U

JPS6256267U -

Info

Publication number: JPS6256267U
Application number: JP14487485U
Authority: JP
Priority date: 1985-09-21
Filing date: 1985-09-21
Publication date: 1987-04-07

Description

[Brief explanation of the drawing]

第１図は本考案に係る押出しピンの一例を示す
断面図、第２図は第１の円筒体の正面図、第３図
は第２の円筒体の正面図、第４図はその平面図、
第５図は第３の円筒体の正面図、第６図はその平
面図、第７図は円柱体の正面図、第８図はその平
面図、第９図は低圧鋳造用金型の一例を示す正面
図である。１０……押出しピン、１１……第１の円筒体、
１２……第２の円筒体、１３……第３の円筒体、
１４……円柱体、１８，２０，２２……通気溝、
２３，２４，２５……隙間。 Fig. 1 is a sectional view showing an example of an extrusion pin according to the present invention, Fig. 2 is a front view of the first cylindrical body, Fig. 3 is a front view of the second cylindrical body, and Fig. 4 is a plan view thereof. ,
Fig. 5 is a front view of the third cylindrical body, Fig. 6 is a plan view thereof, Fig. 7 is a front view of the cylindrical body, Fig. 8 is a plan view thereof, and Fig. 9 is an example of a mold for low pressure casting. FIG. 10... Push-out pin, 11... First cylindrical body,
12... second cylindrical body, 13... third cylindrical body,
14... Cylindrical body, 18, 20, 22... Ventilation groove,
23, 24, 25... Gap.

Claims

[Scope of utility model registration request]

It consists of a plurality of cylindrical bodies fitted concentrically and a cylindrical body fitted in the center of the cylindrical bodies, and molten hot water is formed between adjacent cylindrical bodies and between each cylindrical body. An extrusion pin is inserted into the mold, with a gap of appropriate size formed around the entire circumference and from the tip side to the extent that the pin does not fit, and a plurality of ventilation grooves communicating with the gap from the gap to the rear end formed in the circumferential direction. A mold air vent structure that is characterized by being provided until it reaches the cavity.