CN201140487Y

CN201140487Y - Auxiliary mould-release structure for molding case mold

Info

Publication number: CN201140487Y
Application number: CNU2007200422738U
Authority: CN
Inventors: 刘伟
Original assignee: Mitac Precision Technology Kunshan Ltd
Current assignee: Mitac Precision Technology Kunshan Ltd
Priority date: 2007-11-14
Filing date: 2007-11-14
Publication date: 2008-10-29
Anticipated expiration: 2017-11-14

Abstract

A molding female mould auxiliary demoulding structure is disclosed, which is used for a mould which is made of a female mould and a male mould which are relatively provided with each other and can be opened and closed, wherein the male mould comprises a male mould kernel, the female mould comprises a female mould kernel, a block, an oblique pin seat and an oblique pin, wherein firstly the block is fixed on the female mould, the oblique pin seat can do to-and-fro movement in the female mould and is obliquely provided with the oblique pin whose one end can do transverse to-and-fro movement on the oblique pin seat, the other end is provided with an inverted hook portion which can directly joint foming of products, secondly one side of the oblique pin seat is provided with a ladder, and the bottom portion of the oblique pin seat is opened with a concave hole, furthermore, a shutter is fixed on the male mould and corresponds to the concave hole, one end of the shutter is one end of a screw which is wrapped by swelling resin, the other end is fixed on the other end of the screw on the male mould, and the shutter drives the oblique pin seat to slide due to the movement of the male mould, and the inverted hook portion on the oblique pin is receded out to form the products.

Description

The moulding master mold is assisted demolding structure

[technical field]

The utility model relates to a kind of demolding structure, and especially a kind of moulding master mold is assisted demolding structure.

[background technology]

The inclined pin structure that the early stage demoulding is adopted is as shown in Figure 1: in the injection molding process, finished product 30 and has an overhead kick portion 1021 in the finished product 30 between mother module core 101 and male model benevolence 201, be difficult to directly carry out the demoulding, and this just needs to handle with taper pin 102.So after mother module core 101 and male model benevolence 201 are separated, move back the mould action and must give 102 1 active forces of taper pin by the breaking face 2011 that male model benevolence 201 is provided with, make taper pin 102 returns, and make the overhead kick portion 1021 on the taper pin 102 move apart finished product 30, and with manipulator finished product 30 is taken out the purpose that just can reach the demoulding simultaneously.

Because above-mentioned traditional technical scheme, breaking face 2011 must be on male model benevolence 201, be provided with, thereby the breaking hole can be on finished product 30, formed, the structure of finished product 30 there is certain restriction.

The inclined pin structure that the existing demoulding is adopted is by the disclosed inclined pin structure of Chinese invention patent ublic specification of application CN2900132Y.This structure is provided with return pin in addition, flexible member, and by male model master mold die sinking campaign, return pin is owing to the motion of liftout plate is stretched out outside the master mold, thus the drive inclined pin return, and make the overhead kick portion on the taper pin withdraw from shaped article.Because this structure is provided with a flexible member and return pin in addition, can effectively solve the problem in breaking hole, but structure more complicated.

[summary of the invention]

Whether the utility model main purpose is to provide a kind of structure to finished product to have the breaking hole not require, and the auxiliary demolding structure of the better simply moulding master mold of demolding structure, and the finished product that can be used for having overhead kick portion carries out the demoulding.

In order to achieve the above object, the utility model has adopted following technical scheme to realize: a kind of moulding master mold is assisted demolding structure, this structure is mainly used in a mould, and wherein, but this mould comprises a master mold and a male model that is oppositely arranged folding, and this male model comprises a male model benevolence, this master mold comprises a mother module core, and this master mold also comprises: a taper pin seat, and this taper pin seat can slidably reciprocate in master mold, and this taper pin seat one side is provided with a ladder, and its bottom offers a shrinkage pool; One taper pin, this taper pin one end is obliquely installed on this taper pin seat, and this end can make traverse motion on the taper pin seat, and its other end passes the taper pin hole that master mold is provided with, and this end is provided with an overhead kick portion, and this overhead kick portion can participate in shaped article directly; One block, this block is fixed on the master mold, and it can offset with this ladder; One shutter, this shutter is made up of a screw and a swollen resin, this screw one end is fixed on the male model benevolence, its other end stretches out outside the male model, and should hold by this swollen resin inclusion, and it can be sticked in this shrinkage pool, thereby this shutter is because the motion of male model drives this taper pin seat slides, and makes that overhead kick portion withdraws from shaped article on this taper pin;

Adopt technique scheme, the moulding master mold that the utility model proposed is assisted demolding structure, not only need not form the breaking hole on finished product, and adopt better simply demolding structure, just can effectively taper pin be moved apart finished product, finish demoulding action with overhead kick portion.

[description of drawings]

Fig. 1 is an early stage demoulding inclined pin structure cutaway view.

The die cut view that shutter was just being conflicted with shrinkage pool when Fig. 2 was the utility model matched moulds.

The die cut view of taper pin seat and inclined pin return when Fig. 3 is the utility model matched moulds.

Die cut view when Fig. 4 is the complete matched moulds of the utility model.

Overhead kick portion withdrawed from shaped article fully when Fig. 5 was the utility model die sinking, the die cut view that ladder and block offset.

Die cut view when Fig. 6 is the complete die sinking of the utility model.

[specific embodiment]

See also Fig. 2, shown in Figure 3, the utility model is the auxiliary demolding structure of a kind of moulding master mold, and this demolding structure is applied in the mould, this mould comprises a master mold 10 and a male model 20, and this master mold 10 is oppositely arranged with this male model 20 and can carries out die sinking and matched moulds, is provided with a molding space between this master mold 10 and this male model 20, to this molding space injected plastic, can mold the finished product of plastics, in addition, this master mold 10 also is provided with a mother module core 101, and this male model is provided with a male model benevolence 201.

Wherein, be provided with a taper pin seat 102 in this master mold 10, this taper pin seat 102 can slidably reciprocate in master mold 10, and this taper pin seat 102 tilts a taper pin 103 is set, and these taper pin 103 1 ends can be made traverse motion on this taper pin seat 102, its other end passes the taper pin hole 1011 on the mother module core 101, and this end is provided with an overhead kick portion 1031, this overhead kick portion 1031 can participate in formed product directly, in addition, be fixed with a block 104 on this master mold 10, these taper pin seat 102 1 sides are provided with a ladder 1022, this ladder 1022 is determined by the length of this overhead kick portion 1031 and the gradient of taper pin 103 with this block 104 distance apart, guarantee that with this overhead kick portion 1031 withdraws from shaped article fully, and these taper pin seat 102 bottoms is provided with a shrinkage pool 1021.

In addition, male model benevolence 201 is provided with a shutter 40, this shutter 40 is relative with this shrinkage pool 1021, and this shutter 40 is made up of a screw 401 and a swollen resin 402, and these screw 401 1 ends are fixed on the male model benevolence 201, its other end stretches out outside the male model 20, and should hold by these swollen resin 402 inclusions.

See also Fig. 2, Fig. 3 and shown in Figure 4, when male model 20 is shifted to master mold 10, promptly when this mould matched moulds, this shutter 40 this shrinkage pool 1021 of at first conflicting, and force these taper pin seat 102 returns in master mold 10, motion by this taper pin seat 102, cause these taper pin 103 1 ends on taper pin seat 102, to do transverse movement, thereby make overhead kick portion 1031 returns on these taper pin 103 other ends, when these taper pin seat 102 complete returns were in master mold 10, this shutter 40 was clamp-oned by force in the shrinkage pool 1021 under the further motion of male model 20, finishes matched moulds.

See also Fig. 5, when male model 20 moves apart master mold 10, promptly when this mould die sinking, the shutter 40 drive taper pin seats 102 that are sticked in the shrinkage pool 1021 move to male model 20 travel directions together, cause these taper pin seat 102 bottoms to be stretched out outside the master mold 10, thereby drive taper pin 103 1 ends and on taper pin seat 102, do transverse movement, and make the overhead kick portion 1031 of the other end of this taper pin 103 withdraw from shaped article, promptly finish demoulding step.

Die sinking continues, see also shown in Figure 6, at this moment, a side steps 1022 offsets with block 104 on the taper pin seat 102, stop that with this this taper pin seat 102 continues to stretch out outside master mold 10, and shutter 40 breaks away from shrinkage pool 1021 along with the further motion of male model 20, can finish die sinking with this.

Claims

1. a moulding master mold is assisted demolding structure, and this structure is mainly used in a mould, but this mould comprises a master mold and a male model that is oppositely arranged folding, and this male model comprises a male model benevolence, and this master mold comprises a mother module core, and this master mold also comprises:

One taper pin seat, this taper pin seat can slidably reciprocate in master mold, and offers a shrinkage pool bottom this taper pin seat, and the one side is provided with a ladder;

One taper pin, this taper pin one end is obliquely installed on this taper pin seat, and this end is made traverse motion on the taper pin seat, its other end passes the taper pin hole that master mold is provided with, and this end is provided with an overhead kick portion, this overhead kick portion participates in shaped article directly, it is characterized in that the auxiliary demolding structure of this moulding master mold comprises:

One block, this block is fixed on the master mold, and it can offset with this ladder;

One shutter, this shutter is made up of a screw and a swollen resin, this screw one end is fixed on this male model benevolence, its other end stretches out outside the male model, and should hold by this swollen resin inclusion, and it can be sticked in this shrinkage pool, thereby this shutter is because the motion of male model drives this taper pin seat slides, and makes that overhead kick portion withdraws from shaped article on this taper pin.