CN219338460U

CN219338460U - Shell concave hole demoulding mechanism

Info

Publication number: CN219338460U
Application number: CN202320244266.5U
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 demoulding mechanism for concave holes in a shell, which comprises a panel, a stripper plate, a fixed mould plate, a movable mould plate, equal-height screws, an external pull plate, an inclined guide post, a sliding block and a sliding block insert, wherein the panel is provided with a plurality of concave holes; the upper end of the equal-height screw is movably arranged on the panel in a penetrating way, the lower end of the equal-height screw penetrates through the panel and then is fixed on the stripper plate, the external pulling plate is arranged between the stripper plate and the fixed die plate, 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 slidingly connected on the movable die plate, the inner side of the sliding block is connected with the sliding block insert in a groove block matching way, the sliding block insert is slidingly connected on the movable die plate, and the inner end of the sliding block insert extends into the cavity. Because the inclined guide post fixed on the fixed die plate drives the sliding block to move inwards, the sliding block insert which is in sliding connection with the sliding block contracts inwards, and the convex block on the sliding block insert is pulled out from the concave hole of the middle shell of the printer, so that the interference of the concave hole is avoided.

Description

Shell concave hole demoulding mechanism

Technical Field

The utility model relates to an injection mold, in particular to a demolding mechanism for concave holes in a shell.

Background

Plastic injection molds are tools for producing plastic products and are very widely used. In injection molding of plastic products, since some plastic products such as the printer housing 100 have a concave hole 101 in the interior, a release mechanism that can be released from the concave hole 101 in advance is required to be designed in order to prevent the concave hole 101 from being pulled out during mold opening.

Disclosure of Invention

The utility model aims to provide a shell concave hole demoulding mechanism capable of avoiding concave hole interference.

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

the utility model relates to a demoulding mechanism for concave holes in a shell, which comprises a panel, a stripper plate, a fixed mould plate, a movable mould plate, equal-height screws, an external pull plate, an inclined guide post, a sliding block and a sliding block insert, wherein the panel is provided with a plurality of concave holes; the upper ends of the equal-height screws are movably arranged on the panel in a penetrating mode, the lower ends of the equal-height screws are fixed on the material removing plate after penetrating through the panel, the external pulling plate is arranged between the material removing plate and the fixed die plate, the upper ends of the inclined guide posts are fixed on the fixed die plate, the lower ends of the inclined guide posts are movably arranged in guide post holes of the sliding blocks in a penetrating mode, the sliding blocks are slidably connected on the movable die plate, the inner sides of the sliding blocks are connected with the sliding block inserts in a groove block matched mode, and the inner ends of the sliding block inserts extend into the cavities.

The upper end of the external pulling plate is fixedly connected to the outer wall of the stripper plate, the long groove on the external pulling plate is movably sleeved on the pulling plate screw, and the pulling plate screw is fixed to the outer wall of the fixed die plate.

The sliding block inserts are two, the inner side faces of the two sliding block inserts are respectively connected with the side walls of the triangular convex blocks on the inner sides of the sliding blocks in a groove block matched mode, convex blocks for forming concave holes are arranged on the outer sides of the sliding block inserts, and the sliding blocks moving outwards can drive the two sliding block inserts to shrink inwards so that the convex blocks are separated from the concave holes.

The utility model also comprises a die foot, a bottom plate, a top plate and a thimble; the movable mould plate is fixed with the bottom plate through the mould foot, the lower end of the ejector pin is fixed on the top plate, the upper end of the ejector pin 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 ejector comprises the panel, the stripper plate, the fixed die plate, the movable die plate, the equal-height screws, the external pull plate, the inclined guide posts, the sliding blocks and the sliding block inserts, wherein the inclined guide posts fixed on the fixed die plate drive the sliding blocks to move inwards, the sliding block inserts sliding with the sliding blocks shrink inwards, the convex blocks on the sliding block inserts are pulled out from concave holes in a middle shell of the printer, interference of the concave holes is avoided, then the ejector rod pushes the top plate, the ejector pins are driven by the top plate to move upwards to eject the middle shell of the printer, and the ejection process is stable and reliable.

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

Drawings

FIG. 1 is an isometric view of a housing in a printer;

FIG. 2 is an exploded perspective view of the present utility model;

FIG. 3 is a schematic view of the cooperation of a slide and a slide insert in a clamped state according to the present utility model;

fig. 4 is a schematic view of the cooperation of a slider and a slider insert in the open mold state of the present utility model.

Description of the embodiments

As shown in fig. 2-4, the utility model relates to a demolding mechanism for concave holes in a shell, which comprises a panel 1, a stripper plate 2, a fixed mold plate 3, a movable mold plate 4, mold legs 5, a bottom plate 6, a top plate 7, equal-height screws 8, an external pull plate 9, an inclined guide post 10, a sliding block 20, a sliding block insert 30 and a thimble (not shown in the figure).

The panel 1, the stripper plate 2, the fixed die plate 3 and the movable die plate 4 are sequentially connected in an abutting mode, the movable die plate 4 is fixed with the bottom plate 6 through the die legs 5, the lower ends of the ejector pins are fixed on the top plate 7, the upper ends of the ejector pins 7 penetrate through the movable die plate 4 and then stretch into the cavity, and the top plate 7 is arranged between the movable die plate 4 and the bottom plate 6. The upper end of the contour screw 8 is movably arranged in the stepped hole 11 of the panel 1, the lower end of the contour screw 8 passes through the panel 1 and then is fixed on the stripper plate 2, the external pull plate 9 is arranged between the stripper plate 2 and the fixed die plate 3, the upper end of the inclined guide post 10 is fixed on the fixed die plate 3, the lower end of the inclined guide post 10 is movably arranged in the guide post hole 201 of the slide block 20, the slide block 20 is slidingly connected on the movable die plate 4, the inner side of the slide block 20 is connected with the slide block insert 30 in a groove block matching mode, the slide block insert 30 is slidingly connected on the movable die plate 4, and the inner end of the slide block insert 30 stretches into the die cavity.

Further, the upper end of the external pulling plate 9 is fixedly connected to the outer wall of the stripper plate 2, the long groove 91 on the external pulling plate 9 is movably sleeved on the pulling plate screw 40, and the pulling plate screw 40 is fixed on the outer wall of the fixed die plate 3.

In this embodiment, as shown in fig. 1, the two slider inserts 30 are provided, the inner sides of the two slider inserts 30 are respectively connected with the side walls of the triangular bump 201 on the inner side of the slider 20 in a groove block matching manner, the outer side of the slider insert 30 is provided with a bump 301 for forming the concave hole 101 of the middle shell 100 of the printer, and the slider 20 moving outwards can drive the two slider inserts 30 to shrink inwards so that the bump 301 is separated from the concave hole 101.

The working principle of the utility model is as follows:

the inclined guide post 10 fixed on the fixed template 3 drives the sliding block 20 to move inwards, the sliding block insert 30 sliding with the sliding block 20 contracts inwards, the convex block 301 on the sliding block insert 30 is pulled out of the concave hole 101 of the middle printer shell 100, interference of the concave hole 101 is avoided, then the top rod is propped against the top plate 7, and the top plate 7 drives the top rod to move upwards to push out the middle printer shell 100.

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 shrinkage pool demoulding mechanism in casing which characterized in that: the device comprises a panel, a stripper plate, a fixed die plate, a movable die plate, equal-height screws, an external pull plate, an inclined guide post, a sliding block and a sliding block insert; the upper ends of the equal-height screws are movably arranged on the panel in a penetrating mode, the lower ends of the equal-height screws are fixed on the material removing plate after penetrating through the panel, the external pulling plate is arranged between the material removing plate and the fixed die plate, the upper ends of the inclined guide posts are fixed on the fixed die plate, the lower ends of the inclined guide posts are movably arranged in guide post holes of the sliding blocks in a penetrating mode, the sliding blocks are slidably connected on the movable die plate, the inner sides of the sliding blocks are connected with the sliding block inserts in a groove block matched mode, and the inner ends of the sliding block inserts extend into the cavities.

2. The housing female cavity release mechanism of claim 1, wherein: the upper end of the external pulling plate is fixedly connected to the outer wall of the stripper plate, the long groove on the external pulling plate is movably sleeved on the pulling plate screw, and the pulling plate screw is fixed to the outer wall of the fixed die plate.

3. The housing female cavity release mechanism of claim 1, wherein: the sliding block inserts are two, the inner side faces of the two sliding block inserts are respectively connected with the side walls of the triangular convex blocks on the inner sides of the sliding blocks in a groove block matched mode, convex blocks for forming concave holes are arranged on the outer sides of the sliding block inserts, and the sliding blocks moving outwards can drive the two sliding block inserts to shrink inwards so that the convex blocks are separated from the concave holes.

4. The housing female cavity release mechanism of claim 1, wherein: the mold also comprises a mold foot, a bottom plate, a top plate and a thimble; the movable mould plate is fixed with the bottom plate through the mould foot, the lower end of the ejector pin is fixed on the top plate, the upper end of the ejector pin 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.