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Injection Mold Guide Positioning System
Original: Original | Author: DGMF Mold Clamps | Publish Time: 2020-09-30 | 4242 Views | Share:
Injection Mold Guide Positioning System

 

2. Design of guide bushing and guide pin

1) Shape.

2) Material and heat treatment

3) Tolerance and fit

Fixing of guide bushing H7/k6,

The fit between the guide bushing and the guide pin is H7/f7.

 

3. Middle support edge (E.G.P.)

1) Application

(1) There is a tube; (2) The mouth is eccentric;

(3) There are more thimbles smaller than 2mm; (4) There are more thimbles on one side and less on the other.

 

2) Size and quantity design

(1) For the mold base below 4040, use 2 middle supporting edges, the diameter is equal to or 5mm larger than the diameter of the needle;

(2) For mold bases above 4040, 4 middle support edges are used, the diameter is equal to the diameter of the needle.

(3) Location: see the picture below

 

Sixth. Cone surface positioning mechanism (side lock and tube position)

1. The side locking position is the auxiliary positioning mechanism of the guide post and guide sleeve, which is mostly used for large (above 400mm wide), a deep cavity, and plastic parts with high precision requirements. Installed on the four sides of the mold.