CN219360214U

CN219360214U - Easily-demoulded mobile phone shell injection mold

Info

Publication number: CN219360214U
Application number: CN202320562822.3U
Authority: CN
Inventors: 杨燕香; 邓惠玲; 黄月娣; 杨伟敏; 林金碧
Original assignee: Longmen County Huaxin High New Technology Co ltd
Current assignee: Longmen County Huaxin High New Technology Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-07-18
Anticipated expiration: 2033-03-21

Abstract

The utility model discloses an injection mold of a mobile phone shell easy to demould, which relates to the field of injection molds and aims at solving the problem that the existing injection thimble of the mobile phone shell is demoulded easily to cause surface flaws of products, and the injection mold comprises a bottom mold and a top mold, wherein the bottom mold is provided with a mold cavity, the bottom end of the top mold is provided with a male mold, the bottom mold is matched and sleeved with the top mold, and the top mold is provided with an air compressing displacement mechanism: the top of top mould has seted up flutedly, a plurality of pinholes have been seted up vertically to the recess tank bottom, just the top seal of recess has the apron, the apron top is connected with the piston rod of cylinder, just the apron is kept away from apron one end interface connection through trachea and cylinder, the four corners of die block is vertical to be provided with the guide pillar, just be provided with the support between the guide pillar top, cylinder casing and leg joint. The device is novel in structure, and the problem that the surface defects of products are easily caused by demolding of the injection molding thimble of the existing mobile phone shell is effectively solved.

Description

Easily-demoulded mobile phone shell injection mold

Technical Field

The utility model relates to the field of injection molds, in particular to an easily-demoulded mobile phone shell injection mold.

Background

The mobile phone shell is not easy to separate from the mold after being cooled and molded in the mold, and the mobile phone shell is usually ejected out through the ejector pin, but the ejector pin easily causes surface flaws of a finished product, so in order to optimize the problems, an injection mold for the mobile phone shell easy to demould by compressed air displacement is provided.

Disclosure of Invention

The utility model provides an injection mold for a mobile phone shell easy to demould, which solves the problem that the existing injection thimble of the mobile phone shell is easy to demould to cause surface flaws of products.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides an easy drawing of patterns cell-phone shell injection mold, includes die block and top mould, the die cavity has been seted up to the die block, top mould bottom is provided with the positive mould, just die block and top mould match cup joint, the top mould is provided with the gas displacement mechanism: the top of top mould has seted up flutedly, a plurality of pinholes have been seted up vertically to the recess tank bottom, just the top seal of recess has the apron, the apron top is connected with the piston rod of cylinder, just the apron is kept away from apron one end interface connection through trachea and cylinder, the four corners of die block is vertical to be provided with the guide pillar, just be provided with the support between the guide pillar top, cylinder casing and leg joint.

As a preferable technical scheme of the utility model, the bracket is arranged in an X shape, and the output end of the air cylinder is vertically connected with the intersection of the bracket.

As a preferable technical scheme of the utility model, the two ends of the top die are vertically connected with the hydraulic cylinders, and the piston rods of the hydraulic cylinders are used for avoiding the air through the X-shaped bracket.

As a preferable technical scheme of the utility model, a fixed seat is arranged on the cylinder body of the hydraulic cylinder and is connected with pressure equipment.

As a preferable technical scheme of the utility model, the bottom edges of the two ends of the bottom die are symmetrically provided with the fixing lugs, and the fixing lugs are provided with U-shaped grooves for assembling screws.

As a preferable technical scheme of the utility model, the top end of the cover plate is provided with the one-way valve, and the circulation direction of the one-way valve is arranged in the groove from outside to inside.

The beneficial effects of the utility model are as follows:

the device top of a top die has a space provided with a groove, when the hydraulic cylinder lifts the top die upwards to open the die, the top die also drives a piston rod of the cylinder to move through a cover plate to compress air, air is compressed into the groove through an air pipe, the air is equally divided through the groove and a pin hole and then compressed between a male die and a formed mobile phone shell, the mobile phone shell is extruded out of the die through the air expansion effect, and the device takes the male die as an example to display the structural operation mode of a compressed air displacement mechanism, and when the device is needed, the structure can also be applied to a female die.

In conclusion, the device effectively solves the problem that the existing injection molding thimble of the mobile phone shell is easy to cause product surface flaws.

Drawings

Fig. 1 is a schematic diagram of the structure of the present utility model after mold closing.

Fig. 2 is a schematic diagram of the structure of the utility model after mold opening.

Fig. 3 is a schematic view of the structure of fig. 2 at another view angle according to the present utility model.

Fig. 4 is a structural exploded view of the present utility model.

Reference numerals in the drawings: 1. a bottom die; 101. a guide post; 102. a bracket; 103. a fixed ear; 2. a top mold; 201. a groove; 202. a pinhole; 203. a cover plate; 204. a one-way valve; 3. a hydraulic cylinder; 301. a fixing seat; 4. a cylinder; 401. and an air pipe.

Detailed Description

In the following description of the embodiments of the present utility model, reference will be made to the accompanying drawings in which embodiments of the present utility model are clearly and completely described, and it should be understood that the terms "mounted," "connected," and "connected" are used in a broad sense, and may be fixed, removable, or integrally connected, for example, unless otherwise specifically stated or defined in the following description; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-4, an easy demoulding mobile phone shell injection mold comprises a bottom mold 1 and a top mold 2, wherein a mold cavity is formed in the bottom mold 1, a male mold is arranged at the bottom end of the top mold 2, the bottom mold 1 and the top mold 2 are matched and sleeved, and the top mold 2 is provided with a compressed air displacement mechanism: the top of the top die 2 is provided with a groove 201, the bottom of the groove 201 is vertically penetrated and provided with a plurality of pinholes 202, the top of the groove 201 is sealed with a cover plate 203, the top of the cover plate 203 is connected with a piston rod of a cylinder 4, the cover plate 203 is connected with one end of the cylinder 4, far away from the cover plate 203, through an air pipe 401, in an interface connection, four corners of the bottom die 1 are vertically provided with guide posts 101, a support 102 is arranged between the tops of the guide posts 101, a shell of the cylinder 4 is connected with the support 102, and the mobile phone shell is extruded out of the die through the gas expansion effect by pressing air between a male die and a formed mobile phone shell.

Referring to fig. 1, a bracket 102 is arranged in an X shape, the output end of a cylinder 4 is vertically connected with the intersection of the bracket 102, two ends of a top die 2 are vertically connected with a hydraulic cylinder 3, a piston rod of the hydraulic cylinder 3 is kept away through the X shape of the bracket 102, a cylinder body of the hydraulic cylinder 3 is provided with a fixing seat 301 to be connected with a pressure device, and the structural stability of a guide column 101 is increased through the bracket 102.

Referring to fig. 1 and 2, fixing lugs 103 are symmetrically arranged at bottom edges of two ends of the bottom die 1, and U-shaped grooves for assembling screws are formed in the fixing lugs 103, so that the bottom die 1 is fixedly connected with equipment, referring to fig. 1, a one-way valve 204 is arranged at the top end of a cover plate 203, the circulation direction of the one-way valve 204 is set from outside to inside of a groove 201, and the one-way valve 204 is used for balancing negative pressure effect generated by suction effect of a cylinder 4 through an air pipe 401 during die assembly.

The device solves the working principle that the demolding of the injection molding thimble of the existing mobile phone shell easily causes the defect problem of the surface of the product: the top end of the top die 2 of the device is provided with a space provided with a groove 201, a cover plate 203 is arranged at the notch of the groove 201 to be connected with an air cylinder 4, and a one-way valve 204 is arranged, so that when the hydraulic cylinder 3 lifts the top die 2 upwards to open the die, the top die 2 drives a piston rod of the air cylinder 4 to move to compress air through the cover plate 203, the air is pressed into the groove 201 through an air pipe 401, and then is equally divided through the groove 201 and a pin hole 202 and then is pressed between a male die and a formed mobile phone shell, and the mobile phone shell is extruded out of the die through the air expansion effect;

the device takes a male die as an example to show the structural operation mode of the pneumatic displacement mechanism, and the structure can be applied to a female die in the same way when the pneumatic displacement mechanism is needed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides an easy drawing of patterns cell-phone shell injection mold, includes die block (1) and top mould (2), its characterized in that, the die cavity has been seted up to die block (1), top mould (2) bottom is provided with the positive mould, just die block (1) and top mould (2) match and cup joint, top mould (2) are provided with the gas displacement mechanism of pressing: the top of cope match-plate pattern (2) is seted up flutedly (201), a plurality of pinholes (202) have been seted up vertically to recess (201) tank bottom, just the top of recess (201) is sealed to have apron (203), apron (203) top is connected with the piston rod of cylinder (4), just apron (203) keep away from apron (203) one end interface connection through trachea (401) and cylinder (4), the four corners of die block (1) is vertical to be provided with guide pillar (101), just be provided with support (102) between guide pillar (101) top, cylinder (4) casing is connected with support (102).

2. The injection mold for the easily demoulded mobile phone shell according to claim 1, wherein the support (102) is arranged in an X shape, and the output end of the air cylinder (4) is vertically connected with the intersection of the support (102).

3. The injection mold for the easily demoulded mobile phone shell according to claim 2, wherein the two ends of the top mold (2) are vertically connected with a hydraulic cylinder (3), and a piston rod of the hydraulic cylinder (3) is used for avoiding air through an X-shaped structure of the bracket (102).

4. An injection mould for easily demoulded mobile phone shells according to claim 3, characterized in that the cylinder body of the hydraulic cylinder (3) is provided with a fixing seat (301) connected with a pressure device.

5. The injection mold for the mobile phone shell easy to release according to claim 1, wherein fixing lugs (103) are symmetrically arranged at the bottom edges of two ends of the bottom mold (1), and the fixing lugs (103) are provided with U-shaped grooves for assembling screws.

6. The injection mold for the easily-demoulded mobile phone shell according to claim 1, wherein a one-way valve (204) is arranged at the top end of the cover plate (203), and the circulation direction of the one-way valve (204) is set from outside to inside of the groove (201).