CN219338459U

CN219338459U - Secondary core-pulling demoulding mechanism

Info

Publication number: CN219338459U
Application number: CN202320243965.8U
Authority: CN
Inventors: 黄伟达; 蔡荣镇; 黄伟烽
Original assignee: Xiamen Mingruijie Mold Co ltd
Current assignee: Xiamen Mingruijie Mold Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-07-14
Anticipated expiration: 2033-02-17

Abstract

The utility model discloses a secondary core-pulling demoulding mechanism which comprises a fixed template, a movable template, an inclined guide post, a sliding block, a first sliding block insert, a second sliding block insert and a limit screw, wherein the fixed template is fixedly arranged on the fixed template; the lower extreme activity of oblique guide pillar is worn to put in the guide pillar hole of slider, and slider second mold insert all slide on the movable mould board, and slider first mold insert is fixed on the inner of slider, and the inner of slider first mold insert passes slider second mold insert and stretches into the die cavity, and slider second mold insert is leaned on the slider, and the outer activity of spacing screw is worn to put in the shoulder hole in the slider outside, and the inner of spacing screw passes the slider and then is connected with slider second mold insert. The inclined guide pillar drives the sliding block to move outwards, the sliding block drives the first insert of the sliding block to deviate from a small hole on the earphone shell for primary core pulling, after the sliding block moves a little distance, the limiting screw drives the second insert of the sliding block to perform secondary core pulling, the core pulling action of the stepped hole on the earphone shell is completed, small holes are effectively prevented from being damaged, and the earphone shell has the advantage of stable and reliable core pulling.

Description

Secondary core-pulling demoulding mechanism

Technical Field

The utility model relates to an injection mold, in particular to a secondary core-pulling demolding mechanism.

Background

Plastic injection molds are tools for producing plastic products and are very widely used. In injection molding of plastic products, as some plastic products have inverted buckles inside, as shown in fig. 1 and 2, the plastic products are earphone shells 100, which have stepped inner holes 101, and the small holes are easy to damage during core pulling, so that a reliable core pulling demoulding mechanism needs to be designed.

Disclosure of Invention

The utility model aims to provide a secondary core-pulling demoulding mechanism with stable and reliable core-pulling.

In order to achieve the above object, the technical solution of the present utility model is:

the utility model relates to a secondary core-pulling demoulding mechanism which comprises a fixed template, a movable template, an inclined guide post, a sliding block, a first sliding block insert, a second sliding block insert and a limit screw, wherein the fixed template is fixedly arranged on the fixed template; the fixed die plate is connected with the movable die plate in a leaning way, the upper end of the inclined guide post is fixed on the fixed die plate, the lower end of the inclined guide post is movably arranged in a guide post hole of the sliding block in a penetrating way, the sliding block is connected with the movable die plate in a sliding way, the outer end of the first insert of the sliding block is fixed on the inner end of the sliding block, the inner end of the first insert of the sliding block penetrates through the second insert of the sliding block to extend into the die cavity, the outer end of the second insert of the sliding block is connected with the inner end of the sliding block in a leaning way, the outer end of the limiting screw is movably arranged in a stepped hole on the outer side of the sliding block in a penetrating way, and the disc head on the limiting screw can be propped against a stepped surface on the stepped hole of the sliding block, and the inner end of the limiting screw penetrates the sliding block and is fixedly connected with the second insert of the sliding block.

The utility model also comprises a die foot, a bottom plate, a top plate and a push rod; the movable mould plate is fixed with the bottom plate through the mould foot, the lower end of the push rod is fixed on the top plate, the upper end of the push rod penetrates through the movable mould plate and then stretches into the cavity, and the top plate is arranged between the movable mould plate and the bottom plate.

After the scheme is adopted, the movable die plate comprises the fixed die plate, the movable die plate, the inclined guide post, the sliding block, the first sliding block insert, the second sliding block insert and the limiting screw, after the fixed die plate is separated from the movable die plate, the inclined guide post is driven to move upwards, the inclined guide post drives the sliding block to move outwards, the sliding block drives the first sliding block insert to deviate from a small hole on the earphone shell for primary core pulling, after the sliding block moves a little distance, the limiting screw drives the second sliding block insert to perform secondary core pulling, the core pulling action of a stepped hole on the earphone shell is completed, small hole damage is effectively avoided, and the movable die has the advantages of stable and reliable core pulling.

The utility model will be further described with reference to the drawings and the specific examples.

Drawings

FIG. 1 is a left-hand isometric view of a headset housing;

FIG. 2 is a right-hand isometric view of the earphone housing;

FIG. 3 is an exploded perspective view of the present utility model;

FIG. 4 is a schematic view of the present utility model when the first insert of the slide is clamped with the second insert of the slide;

FIG. 5 is a schematic view of the present utility model with the first insert of the slider and the second insert of the slider open.

Description of the embodiments

As shown in fig. 3-5, the utility model provides a secondary core-pulling demolding mechanism, which comprises a fixed mold plate 1, a movable mold plate 2, mold legs 3, a bottom plate 4, a top plate 5, an inclined guide post 6, a sliding block 7, a first sliding block insert 8, a second sliding block insert 9, limit screws 10 and a push rod (not shown in the figure).

The fixed die plate 1 is connected with the movable die plate 2 in an abutting mode, the movable die plate 2 is fixed with the bottom plate 4 through the die feet 3, the lower end of the push rod is fixed on the top plate 5, the upper end of the push rod penetrates through the movable die plate 2 and then stretches into the cavity, and the top plate 5 is arranged between the movable die plate 2 and the bottom plate 4.

The upper end of the inclined guide post 6 is fixed on the fixed die plate 1, the lower end of the inclined guide post 6 is movably arranged in a guide post hole 71 of the sliding block 7 in a penetrating mode, the sliding block 7 is slidably connected on the movable die plate 2, the outer end of the sliding block first insert 8 is fixed on the inner end of the sliding block 7, the sliding block first insert 8 is a round rod, the inner end of the sliding block first insert 8 penetrates through the sliding block second insert 9 to extend into the die cavity, the sliding block second insert 9 is slidably connected on the movable die plate 2, the outer end of the sliding block second insert 9 is abutted against the inner end of the sliding block 7, the inner end of the sliding block second insert 9 extends into the die cavity, the outer end of the limiting screw 10 is movably arranged in a stepped hole 72 on the outer side of the sliding block 7 in a penetrating mode, a disc head on the limiting screw 10 can be abutted against a stepped surface on the stepped hole 72 of the sliding block 7, the disc head on the limiting screw 10 is spaced from the stepped surface on the stepped hole 72 of the sliding block 7, and the inner end of the limiting screw 10 penetrates through the sliding block 7 and then is fixedly connected with the sliding block second insert 9.

The working principle of the utility model is as follows:

referring to fig. 1 and 2, after the fixed die plate 1 is separated from the movable die plate 2, the inclined guide post 6 is driven to move upwards, the inclined guide post 6 drives the slide block 7 to move outwards, the slide block 7 drives the slide block first insert 8 to be separated from the small hole on the earphone shell 100 for primary core pulling, after the slide block 7 moves a little distance, the limit screw 10 drives the slide block second insert 9 to perform secondary core pulling, the core pulling action of the stepped hole 101 on the earphone shell 100 is completed, and then the ejector rod pushes the top plate 5 and the top plate 5 drives the ejector pin to eject.

The foregoing description is only illustrative of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, i.e., the equivalent changes and modifications to the utility model as described in the claims and specification should be considered as falling within the scope of the utility model.

Claims

1. The utility model provides a secondary drawing of patterns mechanism of loosing core which characterized in that: the device comprises a fixed die plate, a movable die plate, an inclined guide post, a sliding block, a first sliding block insert, a second sliding block insert and a limit screw; the fixed die plate is connected with the movable die plate in a leaning way, the upper end of the inclined guide post is fixed on the fixed die plate, the lower end of the inclined guide post is movably arranged in a guide post hole of the sliding block in a penetrating way, the sliding block is connected with the movable die plate in a sliding way, the outer end of the first insert of the sliding block is fixed on the inner end of the sliding block, the inner end of the first insert of the sliding block penetrates through the second insert of the sliding block to extend into the die cavity, the outer end of the second insert of the sliding block is connected with the inner end of the sliding block in a leaning way, the outer end of the limiting screw is movably arranged in a stepped hole on the outer side of the sliding block in a penetrating way, and the disc head on the limiting screw can be propped against a stepped surface on the stepped hole of the sliding block, and the inner end of the limiting screw penetrates the sliding block and is fixedly connected with the second insert of the sliding block.

2. The secondary core-pulling and demolding mechanism according to claim 1, wherein: the mold also comprises a mold foot, a bottom plate, a top plate and a push rod; the movable mould plate is fixed with the bottom plate through the mould foot, the lower end of the push rod is fixed on the top plate, the upper end of the push rod penetrates through the movable mould plate and then stretches into the cavity, and the top plate is arranged between the movable mould plate and the bottom plate.