CN201205745Y

CN201205745Y - Plastic rubber mould

Info

Publication number: CN201205745Y
Application number: CNU2008200465032U
Authority: CN
Inventors: 戴飞军
Original assignee: Zhongshan Liqun Precision Industry Co Ltd
Current assignee: Zhongshan Liqun Precision Industry Co Ltd
Priority date: 2008-04-12
Filing date: 2008-04-12
Publication date: 2009-03-11
Anticipated expiration: 2018-04-12

Abstract

The utility model discloses a plastic mould including a bottom clamping plate, a square iron, a movable mould and a movable mould core. A centre pin with one end inserted into the movable mould and the movable mould core is fixed on the bottom clamping plate. A movable block, which axially moves along the fixed centre pin, is arranged between the bottom clamping plate and the movable mould; and an ejector sleeve is fixed on the movable block, and is sleeved outside the centre pin and can axially slide along the pin driven by the movable block. The plastic mould is characterized in that location pins, which can prevent the bottom clamping plate from moving in the radial direction compared with the centre pin of the movable mould, are respectively arranged between the bottom clamping plate and the square iron, and between the square iron and the movable mould. The utility model can guarantee the stability of the centre pin at the ejecting position compared with the ejector sleeve, thus making the ejecting sleeve not have large friction with the centre pin or get distortion during the reciprocating movement.

Description

A kind of plastic mould

[technical field]

The utility model relates to a kind of plastic mould.

[background technology]

Existing plastic mould much all has liftout attachment, the mode that liftout attachment generally all adopts ejector sleeve and centrepin to cooperate, centrepin one end is fixed on the Bottom clamp plate, ejector sleeve one end is enclosed within on the centrepin and can slides along it, and the ejector sleeve other end passes dynamic model and moves and touches core and can contact with the mould finished product in the die cavity.When the installation that relates to centrepin, all do not take accurate location, centrepin one end is fixed on the Bottom clamp plate, Bottom clamp plate is directly passed square iron with screw be fastened on the dynamic model.Bottom clamp plate is easy to take place laterally to move relative to dynamic model like this, cause the relative centrepin of ejector sleeve to have very big off-centre, in the reciprocating motion process of ejector sleeve, produce very big friction and torsional deformation, damage ejector sleeve and centrepin easily, bring very big influence to production.

[utility model content]

The utility model has overcome the deficiency of above-mentioned technology, and a kind of plastic mould is provided, and this mould can guarantee the relative ejector sleeve position stability of the centrepin of liftout attachment, make in the reciprocating motion process of ejector sleeve and can not produce very big friction and torsional deformation with centrepin.

For achieving the above object, the utility model has adopted following technical proposal:

A kind of plastic mould, it includes Bottom clamp plate, square iron, dynamic model, moving-mould-core, is fixed with an end and is inserted into centrepin in dynamic model and the moving-mould-core on Bottom clamp plate; Between Bottom clamp plate and dynamic model, be provided with along the axially movable movable block of centering pin, on movable block, be fixed with ejector sleeve, this ejector sleeve is enclosed within the outside of centrepin and can be driven by movable block and endwisely slips along centrepin, it is characterized in that, between Bottom clamp plate and square iron, between square iron and the dynamic model, be provided with the alignment pin that prevents that the relative dynamic model of Bottom clamp plate radially is moved along centrepin.

Aforesaid a kind of plastic mould, it is characterized in that, described alignment pin comprises first alignment pin and second alignment pin, on described Bottom clamp plate, be provided with first installing hole, be provided with second installing hole that communicates with first installing hole on square iron, described first alignment pin is contained in first installing hole and second installing hole and makes the Bottom clamp plate positioning and fixing on square iron; Be provided with the 3rd installing hole on described square iron, be provided with the 4th installing hole that communicates with the 3rd installing hole on dynamic model, described second alignment pin is contained in the 3rd installing hole and the 4th installing hole and makes the square iron positioning and fixing on dynamic model.

Aforesaid a kind of plastic mould is characterized in that, is fixed with guide pillar between Bottom clamp plate and dynamic model, and described movable block is enclosed within the guide pillar outside and can slides along guide pillar.

Aforesaid a kind of plastic mould is characterized in that, is provided with the reset assembly that movable block is resetted between movable block and dynamic model.

Aforesaid a kind of plastic mould is characterized in that, described movable block is linked together by front top plate and back top board and forms, and the end of described ejector sleeve is provided with Ka Tai, has the shoulder hole that cooperates with Ka Tai on front top plate.

The beneficial effects of the utility model are: owing to be provided with the alignment pin that prevents that the relative dynamic model of Bottom clamp plate radially is moved along centrepin between Bottom clamp plate and square iron, between square iron and the dynamic model.Bottom clamp plate is securely fixed on the dynamic model like this, and the relative ejector sleeve position stability of centrepin makes in the reciprocating motion process of ejector sleeve and can not produce very big friction and torsional deformation with centrepin.

[description of drawings]

Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model:

Fig. 1 is a structural representation of the present utility model,

Fig. 2 is the I place partial enlarged drawing of Fig. 1.

[specific embodiment]

As shown in Figure 1, a kind of plastic mould, it includes Bottom clamp plate 1, square iron 2, dynamic model 3, moving-mould-core 4, is fixed with an end and is inserted into centrepin 5 in dynamic model 3 and the moving-mould-core 4 on Bottom clamp plate 1; Between Bottom clamp plate 1 and dynamic model 3, be provided with along centering pin 5 axially movable movable blocks 6, described movable block 6 is linked together by front top plate 61 and back top board 62 and forms, the end of described ejector sleeve 7 is provided with card platform 71, has the shoulder hole 63 of fixing card platform 71 on front top plate 61.This ejector sleeve 7 is enclosed within the outside of centrepin 5 and can be driven by movable block 6 and endwisely slip along centrepin 5, is provided with the alignment pin 8 that prevents that Bottom clamp plate 1 relative dynamic model 3 radially is moved along centrepin 5 between Bottom clamp plate 1 and square iron 2, between square iron 2 and the dynamic model 3.

Described alignment pin 8 comprises first alignment pin 81 and second alignment pin 82, on described Bottom clamp plate 1, be provided with first installing hole 91, be provided with second installing hole 92 that communicates with first installing hole 91 on square iron 2, described first alignment pin 81 is contained in first installing hole 91 and second installing hole 92 and makes Bottom clamp plate 1 positioning and fixing on square iron 2; Be provided with the 3rd installing hole 93 on described square iron 2, be provided with the 4th installing hole 94 that communicates with the 3rd installing hole 93 on dynamic model 3, described second alignment pin 82 is contained in the 3rd installing hole 93 and the 4th installing hole 94 and makes square iron 2 positioning and fixing on dynamic model 3.

Be fixed with guide pillar 9 between Bottom clamp plate 1 and dynamic model 3, described movable block 6 is enclosed within guide pillar 9 outsides and can slides along guide pillar 9.Between movable block 6 and dynamic model 3, be provided with the reset assembly 10 that movable block 6 is resetted.

Claims

1, a kind of plastic mould, it includes Bottom clamp plate (1), square iron (2), dynamic model (3), moving-mould-core (4), is fixed with an end and is inserted into centrepin (5) in dynamic model (3) and the moving-mould-core (4) on Bottom clamp plate (1); Between Bottom clamp plate (1) and dynamic model (3), be provided with along the axially movable movable block of centering pin (5) (6), on movable block (6), be fixed with ejector sleeve (7), this ejector sleeve (7) is enclosed within the outside of centrepin (5) and can be driven by movable block (6) and endwisely slips along centrepin (5), it is characterized in that, between Bottom clamp plate (1) and square iron (2), between square iron (2) and the dynamic model (3), be provided with the alignment pin (8) that prevents that the relative dynamic model of Bottom clamp plate (1) (3) radially is moved along centrepin (5).

2, a kind of plastic mould according to claim 1, it is characterized in that, described alignment pin (8) comprises first alignment pin (81) and second alignment pin (82), on described Bottom clamp plate (1), be provided with first installing hole (91), be provided with second installing hole (92) that communicates with first installing hole (91) on square iron (2), described first alignment pin (81) is contained in first installing hole (91) and second installing hole (92) and makes Bottom clamp plate (1) positioning and fixing on square iron (2); On described square iron (2), be provided with the 3rd installing hole (93), be provided with the 4th installing hole (94) that communicates with the 3rd installing hole (93) on dynamic model (3), described second alignment pin (82) is contained in the 3rd installing hole (93) and the 4th installing hole (94) and makes square iron (2) positioning and fixing on dynamic model (3).

3, a kind of plastic mould according to claim 1 and 2 is characterized in that, is fixed with guide pillar (9) between Bottom clamp plate (1) and dynamic model (3), and described movable block (6) is enclosed within guide pillar (9) outside and can slides along guide pillar (9).

4, a kind of plastic mould according to claim 3 is characterized in that, is provided with the reset assembly (10) that movable block (6) is resetted between movable block (6) and dynamic model (3).

5, a kind of plastic mould according to claim 4, it is characterized in that, described movable block (6) is linked together by front top plate (61) and back top board (62) and forms, the end of described ejector sleeve (7) is provided with Ka Tai (71), has the shoulder hole (63) that cooperates with Ka Tai (71) on front top plate (61).