CN2900132Y

CN2900132Y - Auxiliary demoulding structure for master pattern

Info

Publication number: CN2900132Y
Application number: CN 200620056483
Authority: CN
Inventors: 王沛
Original assignee: Mitac Precision Technology Shunde Ltd
Current assignee: Mitac Precision Technology Shunde Ltd
Priority date: 2006-03-20
Filing date: 2006-03-20
Publication date: 2007-05-16
Anticipated expiration: 2016-03-20

Abstract

The utility model discloses a master mould assisting disengaging structure, which is applied to the mould formed by a master mould and a male mould that are arranged in opposition and can open and close. The master mould is composed of a master mould inserts, a liftout plate, an elastic unit, an oblique pin and a return pin. Wherein, the liftout plate is positioned in between the bottom of the master mould and the master mould inserts and performs upward and downward movement relative to the master mould inserts; an oblique pin stand is positioned on the liftout plate; the oblique pin is positioned obliquely on the oblique pin stand; one end of the oblique pin can move to and fro horizontally on the oblique pin stand; the other end of the oblique pin, which passes through the master mould inserts, is provided with a reverse hook section that involves in the forming of products, and; a return pin is positioned on the liftout plate and can extend out of the master mould along with the movement of the liftout plate, so that the oblique pin can return and the hook section on the oblique pin can disengage the formed product. The utility model, which needs not the patching hole on the finished product, is able to easily realize the disengagement of mould.

Description

Master mold is assisted demolding structure

Technical field

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

Background technology

The existing demoulding is with inclined pin structure 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 existing 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.

Summary of the invention

In view of the above problems, the utility model has disclosed the auxiliary demolding structure of a kind of master mold, and whether this structure has the breaking hole not require to the structure of finished product, and the finished product that can be used for having overhead kick portion carries out the demoulding.

For reaching above-mentioned purpose, the utility model has adopted following technical scheme to realize: a kind of master mold is assisted demolding structure, this structure is mainly used in the mould with a master mold and a male model, but this master mold and this male model is oppositely arranged and folding, and this master mold comprises a mother module core, and this master mold also mainly comprises: a liftout plate, this liftout plate are movably set between this master mold bottom and this mother module core, and are fixed with a taper pin seat on this liftout plate; One elastic parts, one end contact at this master mold bottom, and its other end then contacts on this liftout plate, so that this liftout plate is subjected to the telescopic action of this elastic parts and moves up and down with respect to mother module core; An and taper pin, this taper pin one end tilts is arranged on this taper pin seat, and should can make traverse motion on this taper pin seat by end, and its another end passes the taper pin hole that master mold is provided with, and should be provided with overhead kick portion by end, shaped article can directly be participated in by this overhead kick portion; And a return pin, this return pin one end is fixed on this liftout plate, and its other end is then by the motion of this liftout plate and stretch out outside the master mold, thereby drives this inclined pin return, and makes the overhead kick portion on this taper pin withdraw from shaped article.

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

Another purpose of the present utility model is to provide a kind of master mold to assist demolding structure; wherein; this master mold also is provided with a pilot pin; this pilot pin one terminal this master mold bottom that connects; its another end then passes liftout plate and is connected with this mother module core, so that this liftout plate can move up and down with respect to this mother module core by this pilot pin.

Description of drawings

Fig. 1 is an existing demoulding inclined pin structure cutaway view

Die cut view when Fig. 2 is the utility model matched moulds

Die cut view when Fig. 3 is the utility model die sinking

The specific embodiment

Please refer to Fig. 2 and shown in Figure 3, the die cut view when being respectively the utility model die sinking and matched moulds.The utility model is applicable in the mould that comprises a master mold 10 and a male model 20; this master mold 10 is oppositely arranged with this male model 20 and can carries out die sinking or matched moulds; and between this male model 20 and this master mold 10, be provided with a molding space; utilize the injection machine (not shown) that plastics are injected this molding space, can mold the finished product 30 of plastics.

Wherein, these master mold 10 bottoms are fixed with a pressing plate 105, reach a upper ejector plate 1061 and liftout plate 1062 adjacent settings once, and be provided with an elastic parts 104 between this pressing plate 105 and this time liftout plate 1062, and these elastic parts 104 1 ends contact on this pressing plate 105, its another end then contacts at down on the liftout plate 1062, in present embodiment, described elastic parts 104 can be a spring, in addition, this master mold 10 also is provided with a mother module core 101, between this pressing plate 105 and this mother module core 101, be provided with a pilot pin 108, and these pilot pin 108 1 terminal these pressing plates 105 that connect, its another end then passes these

liftout plates

1061,1062 are connected with this mother module core 101, by the guide effect of this pilot pin 108 and the telescopic action of this elastic parts 104, can make these

liftout plates

1061,1062 move up and down with respect to this mother module core 101 between pressing plate 105 and mother module core 101.

In addition, these

liftout plates

1061,1062 are provided with a taper pin seat 103, and this taper pin seat 103 tilts and is provided with a taper pin 102, and this taper pin 102 should can be made traverse motion by end on this taper pin seat 103, its another end then passes the taper pin hole 1011 that mother module core 101 is provided with, and should be provided with an overhead kick portion 1021 by end, shaped article can directly be participated in by this overhead kick portion 1021.

Moreover, also be fixed with a return pin 107 on these

liftout plates

1061,1062, this return pin 107 can move up and down along with these

liftout plates

1061,1062, and this return pin 107 passes the return pin-and-hole 1071 that this mother module core 101 is provided with, thus stretch out or return in this mother module core 101.

When male model 20 is shifted to master mold 10, promptly when this mould matched moulds, this male model 20 compresses the end that this return pin 107 stretches out mother module core 101 earlier, and force these return pin 107 returns in mother module core 101, make these

liftout plates

1061,1062 to direction motion simultaneously away from mother module core 101, thereby elasticity of compression assembly 104, by moving upward of these

liftout plates

1061,1062 and return pin 107, cause these taper pin 102 1 ends on taper pin seat 103, to do transverse movement, thereby make the overhead kick portion 1021 on these taper pin 102 another ends directly participate in shaped article.

When male model 20 moves apart master mold 10, promptly when this mould die sinking, be in elastic parts 104 diastoles of compressive state, promoting up and down,

liftout plate

1061,1062 moves to the direction near mother module core 101 together, return pin 107 also moves downward with these

liftout plates

1061,1062 simultaneously, and these return pin 107 1 ends stretch out outside the mother module core 101, thereby drive taper pin 102 1 ends and on taper pin seat 103, do transverse movement, and make another terminal overhead kick portion 1021 of this taper pin 102 withdraw from shaped article, reach the purpose of the demoulding.

Claims

1. the auxiliary demolding structure of a master mold, this structure is mainly used in a mould, but this mould constitute by a master mold that is oppositely arranged folding and a male model, and this master mold comprises a mother module core, and this master mold also mainly comprises:

One liftout plate, this ejecting plate are movably set between this master mold bottom and this mother module core, and are fixed with a taper pin seat on this liftout plate;

One elastic parts, this elastic parts one end contact at this master mold bottom, and its another end then contacts on this liftout plate, so that this liftout plate can move up and down with respect to this mother module core; And

One taper pin, this taper pin one end tilts is arranged on this taper pin seat, and should can make traverse motion on this taper pin seat by end, its another end passes the taper pin hole that master mold is provided with, and should be provided with overhead kick portion by end, shaped article can directly be participated in by this overhead kick portion, it is characterized in that:

One return pin, this return pin one end is fixed on this liftout plate, and its other end then stretches out outside the master mold owing to the motion of this liftout plate, thereby drives this inclined pin return, and makes the overhead kick portion on this taper pin withdraw from shaped article.

2. master mold according to claim 1 is assisted demolding structure; it is characterized in that; this master mold also is provided with a pilot pin; this pilot pin one terminal this master mold bottom that connects; its another end then passes liftout plate and is connected with this mother module core, so that this liftout plate can move up and down with respect to this mother module core by this pilot pin.