CN102328364A

CN102328364A - Positioning guide post structure of mould

Info

Publication number: CN102328364A
Application number: CN201110298486A
Authority: CN
Inventors: 张卫
Original assignee: Vanguard Wuxi Science and Technology Co Ltd
Current assignee: Vanguard Wuxi Science and Technology Co Ltd
Priority date: 2011-09-28
Filing date: 2011-09-28
Publication date: 2012-01-25

Abstract

The invention provides a positioning guide post structure of a mould, which ensures accurate matching between a guide post and a guide sleeve and has the advantages of simple structure and low processing difficulty, accuracy and cost. The positioning guide post structure comprises a front template, a rear template, a guide post and a guide sleeve, wherein the guide sleeve is located in a through hole of the front template, and the guide post penetrates through a through hole of the rear template. The positioning guide post structure is characterized in that: the part of the guide post in the front template comprises a lower upward-closing cone part and an upper column part; an inner hole of the guide sleeve comprises an upper round through hole and a lower downward-expanding part; and the inner edge surface of the guide sleeve is closely attached to the outer edge surface of the part of the guide post extending into the front template.

Description

The positioning guide column structure of mould

Technical field

The present invention relates to the technical field of structures of injection mold, be specially the positioning guide column structure of mould.

Background technology

The accurate location of front mould, back mould is to be difficult to the perfect a difficult problem that solves in the precision die structural design always.The precision-fit that particularly between front template, the rear pattern plate is the guide pillars and bushes on the pattern frame positions; Guiding.Because guide pillars and bushes is the accurate matched in clearance that belongs to less, monolateral about 0.01 ~ 0.02 gap is unallowable for precision die.So we are by every means preceding; The gap between mould upper guide post guide pin bushing is eliminated by the various auxiliary fine positioning of design mechanism on the die joint of back mould, but this type of designs often complex structure, and structure is more complicated, and difficulty of processing and machining accuracy are also just high more, the processing cost height.

Summary of the invention

To the problems referred to above, the invention provides the positioning guide column structure of mould, it guarantees the precision-fit of guide pillar, guide pin bushing, and simple in structure, difficulty of processing and machining accuracy is low, processing cost is little.

The positioning guide column structure of mould; Its technical scheme is such: it comprises front template, rear pattern plate, guide pillar, guide pin bushing; Said guide pin bushing is positioned at the through hole of said front template; Said guide pillar runs through the through hole of said rear pattern plate; It is characterized in that: said guide pillar is positioned at the inner part of said front template and comprises bottom upwards close up frustum of a cone part, top column part; The endoporus of said guide pin bushing comprises top round tube hole, the downward flared part in bottom, and the inner edge surface of said guide pin bushing fits tightly the outer edge surface that said guide pillar stretches into the inner part of said front template.

It is further characterized in that: the outer edge surface that said guide pillar stretches into the inner part of said front template has oil guide groove.

After adopting said structure of the present invention; Cooperating of taper seat on guide pillar paniculidine bit position and the guide pin bushing, fit clearance is zero, reaches the locating effect of accurate zero clearance; It guarantees the precision-fit of guide pillar, guide pin bushing, and simple in structure, difficulty of processing and machining accuracy is low, processing cost is little.

Description of drawings

Fig. 1 is a front view structural representation of the present invention.

The specific embodiment

See Fig. 1; It comprises front template 1, rear pattern plate 2, guide pillar 3, guide pin bushing 4; Guide pin bushing 4 is positioned at the through hole 5 of front template; Guide pillar 3 runs through the through hole 6 of rear pattern plate 2; Guide pillar 3 is positioned at the inner part of front template 1 and comprises bottom upwards close up frustum of a cone part 7, top column part 8; The endoporus of guide pin bushing 4 comprises top round tube hole 9, the downward flared part 10 in bottom; The inner edge surface of guide pin bushing 4 fits tightly the outer edge surface that guide pillar 3 stretches into the part of front template 1 inside, and the outer edge surface that guide pillar 3 stretches into the part of front template 1 inside has oil guide groove 11.

Claims

1. the positioning guide column structure of mould; It comprises front template, rear pattern plate, guide pillar, guide pin bushing; Said guide pin bushing is positioned at the through hole of said front template; Said guide pillar runs through the through hole of said rear pattern plate; It is characterized in that: said guide pillar is positioned at the inner part of said front template and comprises bottom upwards close up frustum of a cone part, top column part; The endoporus of said guide pin bushing comprises top round tube hole, the downward flared part in bottom, and the inner edge surface of said guide pin bushing fits tightly the outer edge surface that said guide pillar stretches into the inner part of said front template.

2. the positioning guide column structure of mould according to claim 1 is characterized in that: the outer edge surface that said guide pillar stretches into the inner part of said front template has oil guide groove.