CN216860440U

CN216860440U - Novel cell-phone shell injection mold

Info

Publication number: CN216860440U
Application number: CN202123351028.4U
Authority: CN
Inventors: 翁映纯
Original assignee: Dongguan Dingxing Technology Co ltd
Current assignee: Dongguan Dingxing Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-07-01
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a novel injection mold for a mobile phone shell, which comprises a base, wherein a lower mold is fixed in the middle of the top wall surface of the base, two sides of the top wall surface are connected with a top plate through buffer fixing components, an upper mold is fixed in the middle of the bottom wall surface of the top plate, the upper mold is positioned right above the lower mold, four positioning components are symmetrically distributed at four corners of the bottom wall surface of the upper mold, positioning grooves are formed in positions, corresponding to the positioning components, on the lower mold, the positioning components comprise fixing plates fixed at the four corners of the bottom wall surface of the upper mold, telescopic rods are vertically arranged below the fixing plates, supporting plates are arranged at the bottom ends of the telescopic rods, second springs are fixedly connected between the fixing plates and the supporting plates, the second springs are sleeved outside the telescopic rods, suckers are arranged on the outer surfaces of the bottom ends of the supporting plates, and the diameters of the suckers are smaller than the diameters of the positioning grooves. The sucking disc that sets up adsorbs on the bottom wall of constant head tank, when moulding plastics, goes up the mould and is fixed by the position subassembly, can not remove, has guaranteed the accurate nature of compound die.

Description

Novel cell-phone shell injection mold

Technical Field

The utility model relates to the technical field of mobile phone shell molds, in particular to a novel mobile phone shell injection mold.

Background

An injection mold is a tool for producing plastic products and also a tool for giving the plastic products complete structure and precise dimensions. The general mobile phone case is made of PC plastic as a main material, and when the mobile phone case is produced, plastic is injected into a mold cavity and is cooled and solidified to obtain a molded product.

According to "a novel cell-phone shell injection mold" of publication No. CN209156877U, it can reduce the pressure when pressurizeing through setting up the fixed subassembly of buffering, prolongs the device life-span. However, the mechanism for positioning the upper die and the lower die is not arranged, so that whether the positions of the upper die and the lower die are accurately aligned or not during injection molding can not be ensured, and the molding effect is easily influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the novel injection mold for the mobile phone shell.

In order to solve the technical problems, the utility model provides the following technical scheme: a novel injection mold for a mobile phone shell comprises a base, wherein a lower mold is fixed in the middle of the top wall surface of the base, two sides of the top wall surface are connected with a top plate through buffer fixing components, an upper die is fixed in the middle of the wall surface at the bottom end of the top plate and is positioned right above the lower die, four positioning components are symmetrically distributed at four corners of the wall surface at the bottom end of the lower die, positioning grooves are arranged on the lower die corresponding to the positioning components, the positioning component comprises a fixed plate fixed at the four corners of the wall surface at the bottom end of the upper die, a telescopic rod is vertically arranged below the fixed plate, a supporting plate is arranged at the bottom end of the telescopic rod, a second spring is fixedly connected between the fixing plate and the supporting plate, the second spring sleeve is arranged outside the telescopic rod, a sucker is arranged on the outer surface of the bottom end of the supporting plate, and the diameter of the sucker is smaller than that of the positioning groove.

As a preferred technical scheme of the utility model, the buffering fixing assembly comprises electric telescopic rods arranged on the wall surface of the top end of the base, the electric telescopic rods are distributed at four corners of the base, a top plate is fixedly arranged at the top of the telescopic end of the electric telescopic rods, a hollow movable rod is sleeved outside the telescopic end of the electric telescopic rods, the upper ends of the movable rods are fixed on the top plate, a sliding ring is arranged at the lower end of the movable rods, the sliding ring is movably sleeved outside the electric telescopic rods, and a first spring sleeved outside the electric telescopic rods is fixedly connected between the sliding ring and the base.

In a preferred embodiment of the present invention, the diameter of the movable rod is larger than the diameter of the electric telescopic rod.

As a preferable technical scheme of the utility model, four guide rods are fixedly connected to four corners of the outer wall of the bottom end of the upper die respectively, the guide rods are positioned on the outer side of the sucker, and guide grooves matched with the guide rods in shape and size are formed in the positions, corresponding to the guide rods, on the lower die.

As a preferred technical scheme of the present invention, the upper surface of the lower mold is concave, the lower surface of the upper mold is convex, and the lower mold corresponds to the upper mold.

As a preferred technical solution of the present invention, the upper mold is fixed to the top plate by bolts, and the lower mold is fixed to the base by bolts.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. when the mould is used, the upper mould moves downwards, the positioning assemblies are gradually close to the positioning grooves, when the upper mould is completely contacted with the lower mould, the suckers are contacted with the bottom wall surfaces of the positioning grooves and adsorbed on the bottom wall surfaces of the positioning grooves, namely, the whole positioning assembly is fixed in the positioning grooves, and in the injection molding process, the upper mould is fixed by the four positioning assemblies and cannot slightly move, so that the accuracy of the mould assembly of the upper mould and the lower mould is ensured, and the appearance of the molded mobile phone shell is attractive;

2. when the mold is used, the upper mold moves downwards to be gradually close to the lower mold, the guide rod gradually enters the guide groove in the process that the upper mold moves downwards, the guide rod can guide the upper mold and guide the direction of the upper mold, the upper mold and the lower mold can be accurately closed, the upper mold and the lower mold are prevented from being misaligned, and injection molding failure is caused.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a positioning assembly according to the present invention;

FIG. 3 is a side view of the upper and lower dies of the utility model;

FIG. 4 is a front view of the present invention;

wherein: 1. a base; 2. a top plate; 3. an upper die; 4. a lower die; 5. an electric telescopic rod; 6. a slip ring; 7. a movable rod; 8. a first spring; 9. a suction cup; 10. positioning a groove; 11. a fixing plate; 12. a telescopic rod; 13. a second spring; 14. a support plate; 15. a guide bar; 16. a guide groove.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Examples

As shown in figures 1, 2 and 3, the utility model provides a novel injection mold for a mobile phone shell, which comprises a base 1, wherein a lower mold 4 is fixed in the middle of the top wall surface of the base 1, a top plate 2 is connected to two sides of the top wall surface through buffer fixing components, an upper mold 3 is fixed in the middle of the bottom wall surface of the top plate 2, the upper mold 3 is positioned right above the lower mold 4, four positioning components are symmetrically distributed at four corners of the bottom wall surface of the upper mold 4, positioning grooves 10 are formed in the positions, corresponding to the positioning components, of the lower mold 4, the positioning components comprise fixing plates 11 fixed at four corners of the bottom wall surface of the upper mold 3, telescopic rods 12 are vertically arranged below the fixing plates 11, support plates 14 are arranged at the bottom ends of the telescopic rods 12, second springs 13 are fixedly connected between the fixing plates 11 and the support plates 14, and the second springs 13 are sleeved outside the telescopic rods 12, a sucker 9 is arranged on the outer surface of the bottom end of the supporting plate 14, and the diameter of the sucker 9 is smaller than that of the positioning groove 10;

when the mould is used, the electric telescopic rod 5 is started, the telescopic end of the electric telescopic rod 5 contracts, the top plate 2 is driven to move downwards, namely, the upper mould 3 is driven to move downwards, the upper mould 3 is gradually close to the lower mould 4, the positioning components are gradually close to the positioning grooves 10 in the downward movement process of the upper mould 3, when the upper mould 3 is completely contacted with the lower mould 4, the positioning components completely enter the positioning grooves 10, the suckers 9 are contacted with the bottom end wall surfaces of the positioning grooves 10 and adsorbed on the bottom end wall surfaces of the positioning grooves 10, namely, the whole positioning components are fixedly adsorbed in the positioning grooves 10 and cannot move, in the injection molding process, the upper mould 3 is fixed by the four positioning components and cannot slightly move, the accuracy of mold assembly of the upper mould 3 and the lower mould 4 can be ensured, and the molded mobile phone shell is attractive in appearance; and when the drawing of patterns, the flexible end of electric telescopic handle 5 drives roof 2 to shift up, roof 2 drives mould 3 and shifts up, it drives locating component and shifts up to go up mould 3, because sucking disc 9 adsorbs in constant head tank 10, it needs to stretch telescopic link 12 and just can extract sucking disc 9 to go up mould 3, establish the second spring 13 at telescopic link 12 outside through the cover, second spring 13 is stretched, the elastic potential energy that resumes to original form has, it can produce the trend that drives telescopic link 12 flexible end and move down, the buffering has been carried out to telescopic link 12, can prevent that the pulling force of last mould 3 from causing the damage to telescopic link 12.

As shown in fig. 1 and 4, the buffering fixing assembly includes an electric telescopic rod 5 installed on a wall surface at the top end of the base 1, the electric telescopic rod 5 is distributed at four corners of the base 1, a top plate 2 is fixedly installed at the top of a telescopic end of the electric telescopic rod 5, a hollow movable rod 7 is sleeved outside the telescopic end of the electric telescopic rod 5, the upper end of the movable rod 7 is fixed on the top plate 2, a sliding ring 6 is installed at the lower end of the movable rod 7, the sliding ring 6 is movably sleeved outside the electric telescopic rod 5, and a first spring 8 sleeved outside the electric telescopic rod 5 is fixedly connected between the sliding ring 6 and the base 1;

when using this mould, start electric telescopic handle 5, electric telescopic handle 5's flexible end shrink, it drives roof 2 and moves down, it moves down to drive mould 3 promptly, make it be close to bed die 4 gradually to go up mould 3, at the in-process that last mould 3 moved down, movable rod 7 moves down, and drive sliding ring 6 and slide in electric telescopic handle 5's lower extreme outside, sliding ring 6 compresses first spring 8 when moving down, thereby first spring 8 deformation has produced the elastic potential energy who resumes to original form, when the degree that first spring 8 compressed is big more, first spring 8's resilience force is stronger more, it has the trend that drives sliding ring 6 rebound, can play the effect of buffering, it is great to prevent that electric telescopic handle 5's impulsive force, cause the damage to the device.

As shown in fig. 1 and 4, the diameter of the movable rod 7 is larger than that of the electric telescopic rod 5;

when using this mould, start electric telescopic handle 5, electric telescopic handle 5's flexible end shrink, it drives roof 2 and moves down, it moves down to drive mould 3 promptly, make it be close to bed die 4 gradually to go up mould 3, at the in-process that last mould 3 moved down, movable rod 7 moves down, and drive sliding ring 6 and slide in electric telescopic handle 5's lower extreme outside, sliding ring 6 compresses first spring 8 when moving down, when the diameter of movable rod 7 is greater than electric telescopic handle 5's diameter, make movable rod 7 can move in electric telescopic handle 5 lower extreme outside.

As shown in fig. 3, four guide rods 15 are fixedly connected to four corners of the outer wall of the bottom end of the upper mold 3, the guide rods 15 are located outside the suction cups 9, and guide grooves 16 matched with the guide rods 15 in shape and size are formed in the lower mold 4 at positions corresponding to the guide rods 15;

when using this mould, start electric telescopic handle 5, electric telescopic handle 5's flexible end shrink, it drives roof 2 and moves down, it moves down to drive mould 3 promptly, make it be close to bed die 4 gradually to go up mould 3, at the in-process that last mould 3 moved down, guide bar 15 gets into in the guide way 16 gradually, it can lead for last mould 3, guide the direction of going up mould 3, can make the accurate compound die of bed die 3 and bed die 4, prevent that it from being inaccurate with bed die 4, lead to the injection moulding failure.

As shown in fig. 1, 3 and 4, the upper surface of the lower mold 4 is concave, the lower surface of the upper mold 3 is convex, and the lower mold 4 corresponds to the upper mold 3; when the mold is used, the upper surface of the lower mold 4 is concave, and the lower surface of the upper mold 3 is convex, so that the upper mold 3 and the lower mold 4 can complete mold closing.

As shown in fig. 1 and 4, the upper mold 3 is fixed on the top plate 2 by bolts, and the lower mold 4 is fixed on the base 1 by bolts; when the die is used, the upper die 3 of the upper die 3 is fixed on the top plate 2 through bolts, and the lower die 4 is fixed on the base 1 through bolts, so that the upper die 3 and the lower die 4 which are different are convenient to replace.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel cell-phone shell injection mold, includes base (1), the top wall middle part of base (1) is fixed with bed die (4), and top wall both sides are connected with roof (2) through buffering fixed subassembly, the bottom wall middle part of roof (2) is fixed with mould (3), its characterized in that: the upper die (3) is positioned right above the lower die (4), four positioning components are symmetrically distributed at four corners of the wall surface at the bottom end of the upper die, positioning grooves (10) are formed in the positions, corresponding to the positioning components, of the lower die (4), and each positioning component comprises

A fixing plate (11) fixed at the four corners of the bottom wall surface of the upper die (3);

a telescopic rod (12) vertically arranged below the fixed plate (11);

a supporting plate (14) arranged at the bottom end of the telescopic rod (12);

the second spring (13) is fixedly connected between the fixing plate (11) and the supporting plate (14), and the second spring (13) is sleeved outside the telescopic rod (12);

set up sucking disc (9) on backup pad (14) bottom surface, the diameter of sucking disc (9) is less than the diameter of constant head tank (10).

2. The injection mold for the novel mobile phone shell according to claim 1, wherein: the buffering fixing component comprises an electric telescopic rod (5) installed on the wall face of the top end of a base (1), the electric telescopic rod (5) is distributed at the four corners of the base (1), a top plate (2) is fixedly installed at the top of a telescopic end of the electric telescopic rod (5), an internal hollow movable rod (7) is sleeved outside the telescopic end of the electric telescopic rod (5), a sliding ring (6) is installed at the lower end of the upper end of the movable rod (7) which is fixed on the top plate (2), the sliding ring (6) is sleeved on the movable rod (5), and a first spring (8) outside the electric telescopic rod (5) is sleeved between the sliding ring (6) and the base (1).

3. The injection mold for the novel mobile phone shell according to claim 2, wherein: the diameter of the movable rod (7) is larger than that of the electric telescopic rod (5).

4. The novel injection mold for mobile phone shells as claimed in claim 1, wherein: four guide rods (15) are fixedly connected to four corners of the outer wall of the bottom end of the upper die (3) respectively, the guide rods (15) are located on the outer side of the sucker (9), and guide grooves (16) matched with the guide rods in shape and size are formed in the positions, corresponding to the guide rods (15), of the lower die (4).

5. The injection mold for the novel mobile phone shell according to claim 1, wherein: the upper surface of the lower die (4) is concave, the lower surface of the upper die (3) is convex, and the lower die (4) corresponds to the upper die (3).

6. The injection mold for the novel mobile phone shell according to claim 1, wherein: the upper die (3) is fixed on the top plate (2) through bolts, and the lower die (4) is fixed on the base (1) through bolts.