CN201900698U

CN201900698U - Ejection mechanism for removing molded barb

Info

Publication number: CN201900698U
Application number: CN2010206850859U
Authority: CN
Inventors: 赖志明
Original assignee: Chicony Electronics Suzhou Co Ltd
Current assignee: Chicony Electronics Suzhou Co Ltd
Priority date: 2010-12-29
Filing date: 2010-12-29
Publication date: 2011-07-20
Anticipated expiration: 2020-12-29

Abstract

The utility model relates to an ejection mechanism for removing a molded barb, which comprises a female mold insert, a male mold insert, a plurality of inclined pins, a strip-shaped sliding block, and a plurality of ejectors, wherein a plurality of inclined pin holes and ejector holes are formed on the male mold insert; the inclined pins are inserted the inclined pin holes and pass through the inclined pin holes; a plurality of grooves are formed on the lower bottom surface of the strip-shaped sliding block and distributed in the axial direction of the strip-shaped sliding block; the inclined pins and the grooves are in one-to-one correspondence, and the upper ends of the inclined pins extend into the corresponding grooves; a strip-shaped through-hole is formed on the strip-shaped sliding block and extends in the axial direction of the strip-shaped sliding block, and the strip-shaped through-hole is communicated with all the grooves; through-holes are formed at the upper ends of the inclined pins respectively and communicated with the strip-shaped through-hole; a contact pin passes through the inside of the strip-shaped through-hole and the insides of the through-holes so that the strip-shaped sliding block and the inclined pins are connected in a rotating manner; the upper surface of the strip-shaped sliding block, the a female mold insert and the male mold insert together form a mold cavity in a surrounding manner; and the ejectors pass through the insides of the ejector holes, the ejector holes are communicated with the mold cavity, and the lower ends of the ejectors are fixedly connected with an ejection plate. The ejection mechanism can ensure that the molded part in the mold cavity is ejected smoothly during mold opening.

Description

Solve the mould emptier of moulding barb

Technical field

The utility model relates to a kind of mould emptier, is applied in the mould of product that moulding has barb.

Background technology

In injection molding process; plastic forms the barb demoulding smoothly after the mold cavity moulding; existing mould emptier is connected by taper pin and slide block and carries out the demoulding; but taper pin to withdraw from stroke limited; slide block to withdraw from stroke also limited; can not make slide block withdraw from barb on the plastic, cause plastic to be difficult to break away from fully mould.

The utility model content

The purpose of this utility model is to overcome the defective that prior art exists, and can make the mould emptier of the smooth demoulding of plastic in the mold cavity when a kind of die sinking is provided.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of mould emptier that solves the moulding barb, comprise the mother module core and the male model benevolence that cooperatively interact, and described male model benevolence is provided with some taper pins hole and centre hole; Some taper pins, described taper pin is corresponding one by one with the taper pin hole, and taper pin interts in the taper pin hole corresponding with it, the common bar shaped slide block that connects in taper pin upper end, the upper surface of this bar shaped slide block and mother module core, male model benevolence together surround a die cavity; Some thimbles, described thimble is corresponding one by one with centre hole, thimble interts in the centre hole corresponding with it, centre hole is communicated with die cavity, fixedly connected with liftout plate in the thimble lower end, have some grooves on the bottom surface of described bar shaped slide block along its axially-aligned, described taper pin is corresponding one by one with groove, taper pin upper end stretch into its corresponding groove in, have on the described bar shaped slide block along its axially extended strip through-hole, and this strip through-hole runs through whole grooves, and described taper pin upper end all has the through hole that can be communicated with strip through-hole, and a contact pin interts and in described strip through-hole and through hole bar shaped slide block and taper pin is rotationally connected.

Further, in order to form the kink of plastic, described bar shaped slide block upper surface is a cambered surface, and this cambered surface and mother module core, male model benevolence together surround a die cavity.

The beneficial effects of the utility model: the utility model has solved the defective that exists in the background technology, the slide block and the taper pin that will be used for moulding plastic corner are rotationally connected, after thimble upwards ejects plastic, barb on the plastic drives slide block and rotates, greatly increased the stroke that withdraws from of slide block, slide block can break away from barb fully, and plastic thereby can take out smoothly obtains production.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the structural representation of plastic preferred embodiment of the present utility model when being in the male model benevolence die cavity;

To be plastic ejected the structural representation of preferred embodiment of the present utility model behind the male model benevolence die cavity by thimble for Fig. 2, Fig. 3;

Fig. 4 is the stereochemical structure exploded view of male model benevolence and upper-part thereof.

Wherein: 1, male model benevolence; 2, taper pin; 21, through hole; 3, bar shaped slide block; 31, groove; 32, strip through-hole; 4, thimble; 5, liftout plate; 6, contact pin; 7, plastic; 71, barb.

The specific embodiment

As Fig. 1-a kind of mould emptier that solves the moulding barb shown in Figure 4, comprise the mother module core and the male model benevolence 1 that cooperatively interact, male model benevolence 1 is provided with some taper pins hole and centre hole; Some taper pins 2, described taper pin 2 is corresponding one by one with the taper pin hole, taper pin 2 interts in the taper pin hole corresponding with it, these taper pin 2 upper end co-rotation connect a bar shaped slide block 3, concrete connected mode: have some grooves 31 on the bottom surface of this bar shaped slide block 3 along its axially-aligned, described taper pin 2 is corresponding one by one with groove 31, taper pin 2 upper ends stretch into its corresponding groove 31 in, also have on the described bar shaped slide block 3 along its axially extended strip through-hole 32, and this strip through-hole 32 runs through whole grooves 31, described taper pin 2 upper ends all have the through hole 21 that can be communicated with strip through-hole 32, one contact pin 6 interts in strip through-hole 32 and through hole 21 bar shaped slide block 3 and taper pin 2 is rotationally connected, and bar shaped slide block 3 can radially rotate along it.The upper surface of described bar shaped slide block 3 is a cambered surface, and this cambered surface and mother module core, male model benevolence 1 together surround a die cavity; Some thimbles 4, described thimble 4 is corresponding one by one with centre hole, and thimble 4 interts in the centre hole corresponding with it, and centre hole is communicated with die cavity, and fixedly connected with liftout plate 5 in thimble 4 lower ends,

Demoulding principle: during die sinking, as shown in Figure 2, plastic 7 is upwards ejected by thimble 4, as shown in Figure 3, the barb 71 of plastic 7 drives bar shaped slide block 3 and rotates to the direction away from barb 71, so that bar shaped slide block 3 can break away from barb 71 fully, plastic 7 thereby can take out smoothly obtains production.

Claims

1. a mould emptier that solves the moulding barb comprises the mother module core and the male model benevolence (1) that cooperatively interact, and described male model benevolence (1) is provided with some taper pins hole and centre hole; Some taper pins (2), described taper pin (2) is corresponding one by one with the taper pin hole, taper pin (2) interts in the taper pin hole corresponding with it, the common bar shaped slide block (3) that connects in taper pin (2) upper end, and the upper surface of this bar shaped slide block (3) and mother module core, male model benevolence (1) together surround a die cavity; Some thimbles (4), described thimble (4) is corresponding one by one with centre hole, thimble (4) interts in the centre hole corresponding with it, centre hole is communicated with die cavity, fixedly connected with liftout plate (5) in thimble (4) lower end, it is characterized in that: have some grooves (31) on the bottom surface of described bar shaped slide block (3) along its axially-aligned, described taper pin (2) is corresponding one by one with groove (31), taper pin (2) upper end stretch into its corresponding groove (31) in, have on the described bar shaped slide block (3) along its axially extended strip through-hole (32), and this strip through-hole (32) runs through whole grooves (31), described taper pin (2) upper end all has the through hole (21) that can be communicated with strip through-hole (32), and a contact pin (6) interts and in described strip through-hole (32) and through hole (21) bar shaped slide block (3) and taper pin (2) is rotationally connected.

2. the mould emptier of solution moulding barb according to claim 1 is characterized in that: described bar shaped slide block (3) upper surface is a cambered surface, and this cambered surface and mother module core, male model benevolence (1) together surround a die cavity.