Matching structure of rear cover mold

By introducing locking components and buffer structures into the rear cover mold, the gap problem when the upper and lower molds are closed is solved, ensuring that the lower mold is not damaged and achieving stable connection and airtight production.

CN223750352UActive Publication Date: 2026-01-02东莞市长弘精密压铸科技有限公司
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Patent Information

Application Number
CN202520248106.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-01-02
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

In the existing back cover mold, gaps easily form between the upper and lower molds during the mold closing process, leading to wear on the bottom of the lower mold and affecting its performance.

Method used

The locking assembly includes a fixed frame, a return spring, and a pressing block, combined with a buffer pad, a limit block, a connecting plate, an elastic air cushion, and a docking post to ensure that the upper and lower molds are securely fastened and to prevent wear. The buffer pad and elastic air cushion provide protection, the limit block maintains movement stability, and the locking block and handle facilitate operation.

Benefits of technology

This achieves a stable connection between the upper and lower molds, avoids wear, maintains the molding effect, and ensures the airtightness and service life of the back cover parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rear cover dies, and discloses a matching structure of a rear cover die, which comprises a rear cover die and two locking components. A rear cover part can be manufactured through the rear cover die, the upper die and the lower die are connected and fastened through the locking assembly, the situation that the left sides of the upper die and the lower die are damaged due to springback of the extrusion block is avoided through the buffering pad, and the moving effect of the extrusion block is kept through the limiting block; the bottom of the lower die can be protected through a connecting plate, an elastic air cushion and a bottom plate, the connecting plate and the lower die move stably through a vertical plate, the upper die and the lower die are in butt joint stably through a butt joint column, an extrusion block is convenient to move through a clamping block and a handle, and the effects that the upper die and the lower die are connected and fastened, and the bottom of the lower die is buffered are achieved; the problems that gaps need to be avoided when an upper die and a lower die of the rear cover die are closed, the bottom of the lower die is slightly abraded when the upper die is pressed downwards, and the use effect is affected after repeated use are solved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of back cover mould, especially relates to a cooperation structure of back cover mould. BACKGROUND

[0002] The back cover mould is used for producing back cover (such as mobile phone back cover, tablet computer back cover etc.

[0003] The back cover mould is used for producing back cover (such as mobile phone back cover, tablet computer back cover etc. TECHNICAL PROBLEM

[0004] In view of the problems in the prior art, the utility model provides a cooperation structure of back cover mould which can overcome the above problems or at least partially solve the above problems.

[0005] The utility model is realized in this way, a cooperation structure of back cover mould, including back cover mould and two locking assemblies, the back cover mould includes upper die, lower die, a plurality of lugs and a plurality of air holes, the bottom of upper die is attached with the top of lower die, the opposite ends of a plurality of lugs are fixedly connected with the front side and rear side of the left and right sides of upper die respectively, a plurality of air holes are arranged in the inside of upper die and lower die respectively, the left locking assembly includes fixed frame, two reset springs and extrusion block, the right side of fixed frame is fixedly connected with the left side of lower die, the left side of two reset springs is fixedly connected with the left side in the inside of fixed frame, the right side of two reset springs is fixedly connected with the bottom of extrusion block left side, the surface of extrusion block is attached with the surface of fixed frame, the front side and rear side of extrusion block inside top are respectively connected with the surface of two left lugs plug-in,

[0006] The back cover mould is used for manufacturing back cover parts.

[0007] Two locking assemblies are used for connecting and fastening upper die and lower die.

[0008] In order to avoid the damage caused by the rebound of the extrusion block to the left side of the upper die and the lower die, preferably, the right side of the extrusion block is fixedly connected with a buffer pad, the right side of the buffer pad is attached to the left side of the upper die and the lower die, and the buffer pad plays a protection role and can prevent the lower die and the lower die from being damaged due to the rebound of the reset spring.

[0009] In order to maintain the moving effect of the extrusion block, preferably, the bottom of the left side of the extrusion block is fixedly connected with two limiting blocks, the surfaces of the two limiting blocks are slidably connected with the inside of the fixed frame, and the extrusion block can only move to the left or to the right direction through the two limiting blocks, so that the limiting effect is achieved.

[0010] In order to protect the bottom of the lower die, preferably, the bottom of the lower die is fixedly connected with a connecting plate, the bottom of the connecting plate is fixedly connected with an elastic air cushion, and the bottom of the elastic air cushion is fixedly connected with a bottom plate. When the upper die extrudes the lower die, the bottom of the lower die is pressed, so that the elastic air cushion is deformed, thereby achieving the buffering effect of the elastic air cushion.

[0011] In order to make the connecting plate and the lower die move stably, preferably, the surface of the bottom plate is fixedly connected with a plurality of vertical plates which are uniformly distributed, and the surfaces of the plurality of vertical plates are attached to the surfaces of the elastic air cushion, the connecting plate and the lower die, and the plurality of vertical plates all play a limiting role to avoid the inclination of the lower die and the connecting plate when the elastic air cushion is deformed.

[0012] In order to make the upper die and the lower die butt joint stably, preferably, the top of the lower die is fixedly connected with a plurality of butt joint columns at four corners, and the surfaces of the plurality of butt joint columns are respectively insertedly connected with the four corners inside the upper die. Through the plurality of butt joint columns, the upper die and the lower die are better butt jointed with each other, and the film pressing effect is maintained.

[0013] In order to facilitate the movement of the extrusion block, preferably, the surface of the extrusion block is fixedly connected with a clamping block, and the left side of the clamping block is fixedly connected with a handle. Pulling the handle drives the clamping block to move to the left, so that the clamping block drives the extrusion block to move to the left.

[0014] Compared with the prior art, the utility model has the advantages that the rear cover mold, the upper die, the lower die and the protruding block and other structure components are arranged, the rear cover part can be manufactured through the rear cover mold, the locking assembly is used for connecting and fastening the upper die and the lower die, the buffer pad avoids the damage caused by the rebound of the extrusion block to the left side of the upper die and the lower die, the limiting block maintains the moving effect of the extrusion block, the connecting plate, the elastic air cushion and the bottom plate can protect the bottom of the lower die, the vertical plate makes the connecting plate and the lower die move stably, the butt joint column makes the upper die and the lower die butt joint stably, the clamping block and the handle facilitate the movement of the extrusion block, and the upper die and the lower die are connected and fastened, and the bottom of the lower die is buffered. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a three-dimensional structure schematic diagram provided by the embodiment of the utility model;

[0016] Figure 2 is the structure three-dimensional view of the utility model embodiment provides the structure three-dimensional view of upper die and lower die separation;

[0017] Figure 3 is the utility model embodiment provided Figure 2 the enlarged view of A in the middle;

[0018] Figure 4 is the structure three-dimensional view of the utility model embodiment provides locking assembly.

[0019] In the drawing: 1, back cover mold;101, upper die;102, lower die;103, convex block;104, air hole;2, locking assembly;201, fixed frame;202, reset spring;203, extrusion block;3, buffer pad;4, limiting block;5, connecting plate;6, elastic air cushion;7, bottom plate;8, vertical plate;9, butt joint column;10, clamping block;11, handle. Specific implementation

[0020] In order to further understand the invention content, characteristics and efficacy of the utility model, the following examples are cited, and the following is described in detail with the help of drawings.

[0021] The structure of the utility model is described in detail below in combination with the drawings.

[0022] As Figures 1 to 4As shown, the utility model discloses a cooperation structure of rear cover mould, including rear cover mould 1 and two locking assembly 2, rear cover mould 1 includes upper die 101, lower die 102, a plurality of lugs 103 and a plurality of air holes 104, the bottom of upper die 101 and the top of lower die 102 are conformed, and the opposite ends of a plurality of lugs 103 are fixedly connected with the front side and the back side of the left and right sides of upper die 101 respectively, a plurality of air holes 104 are arranged in the inside of upper die 101 and lower die 102 respectively, left locking assembly 2 includes fixed frame 201, two reset springs 202 and extruding block 203, and the right side of fixed frame 201 is fixedly connected with the left side of lower die 102, the left side of two reset springs 202 is fixedly connected with the left side in the inside of fixed frame 201, the right side of two reset springs 202 is fixedly connected with the bottom of the left side of extruding block 203, the surface of extruding block 203 is conformed with the surface of fixed frame 201, and the front side and the back side of the inside top of extruding block 203 are respectively connected with the surface of two left lugs 103, and rear cover mould 1 is used for manufacturing rear cover parts.The two locking assemblies 2 are used for connecting and fastening the upper die 101 and the lower die 102, in order to avoid damage to the left side of the upper die 101 and the lower die 102 caused by the rebound of the extrusion block 203, the right side of the extrusion block 203 is fixedly connected with a buffer pad 3, the right side of the buffer pad 3 is attached to the left side of the upper die 101 and the lower die 102, and the buffer pad 3 plays a protection role and can prevent the lower die 102 and the lower die 102 from being damaged due to the rebound of the reset spring 202, in order to maintain the moving effect of the extrusion block 203, the bottom of the left side of the extrusion block 203 is fixedly connected with two limiting blocks 4, the surfaces of the two limiting blocks 4 are slidably connected with the inside of the fixed frame 201, through the two limiting blocks 4, the extrusion block 203 can only move to the left or right direction, and plays a limiting role, in order to protect the bottom of the lower die 102, the bottom of the lower die 102 is fixedly connected with a connecting plate 5, the bottom of the connecting plate 5 is fixedly connected with an elastic air cushion 6, and the bottom of the elastic air cushion 6 is fixedly connected with a bottom plate 7, when the upper die 101 extrudes the lower die 102, the bottom of the lower die 102 is pressed, and the elastic air cushion 6 is deformed, so that the elastic air cushion 6 plays a buffering role, in order to make the connecting plate 5 and the lower die 102 move stably, the surface of the bottom plate 7 is fixedly connected with a plurality of vertical plates 8 which are uniformly distributed, the surfaces of the plurality of vertical plates 8 are attached to the surfaces of the elastic air cushion 6, the connecting plate 5 and the lower die 102, and the plurality of vertical plates 8 all play a limiting role, avoiding the inclination of the lower die 102 and the connecting plate 5 when the elastic air cushion 6 is deformed, in order to make the upper die 101 and the lower die 102 butt joint stably, the four corners of the top of the lower die 102 are fixedly connected with butt joint columns 9, the surfaces of the plurality of butt joint columns 9 are respectively insertedly connected with the four corners inside the upper die 101, through the plurality of butt joint columns 9, the upper die 101 and the lower die 102 are better butt jointed with each other, the film pressing effect is maintained, in order to facilitate moving the extrusion block 203, the surface of the extrusion block 203 is fixedly connected with a clamping block 10, the left side of the clamping block 10 is fixedly connected with a handle 11, the handle 11 is pulled to drive the clamping block 10 to move to the left, so that the clamping block 10 drives the extrusion block 203 to move to the left.

[0023] The utility model discloses a working principle: when needing to separate upper die 101 and lower die 102, through manpower pull handle 11 and drive card block 10 to move to left, and make card block 10 drive extruding block 203 to move to left, make extruding block 203 drive buffer pad 3 and upper die 101, lower die 102 and lug 103 disengaging contact, at this moment can make upper die 101 move to up, and with a plurality of butt joint column 9 disengaging contact, when needing to manufacture air-tight rear cover, place material in the inside of lower die 102, make upper die 101 through a plurality of butt joint column 9 and lower die 102 pressure, and the movement of extruding block 203 will make reset spring 202 produce deformation, release handle 11, and extruding block 203 will drive card block 10 and handle 11 to rebound to the original position through reset spring 202, make extruding block 203 and lug 103 plug-in connection, when upper die 101 presses down, will make lower die 102 receive pressure, and lower die 102 will make connecting plate 5 drive elastic air cushion 6 deformation, thereby play the buffering effect.

[0024] It should be noted that the relative terms, such as first and second, and the like, are used herein solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0025] The above only is the preferred embodiment of the utility model, does not have any form to limit the utility model, although the utility model has disclosed as above with preferred embodiment, however does not use to limit the utility model, any person skilled in the art without departing from the utility model technical scheme range.

Claims

1. A cooperating structure of a back cover mold, comprising a back cover mold (1) and two locking assemblies (2), characterized in that: The back cover mold (1) comprises an upper die (101), a lower die (102), a plurality of protrusions (103) and a plurality of air holes (104), the bottom of the upper die (101) is attached to the top of the lower die (102), the opposite ends of the plurality of protrusions (103) are respectively fixedly connected with the front side and the rear side of the left and right sides of the upper die (101), and the plurality of air holes (104) are respectively arranged in the interiors of the upper die (101) and the lower die (102), the left locking assembly (2) comprises a fixed frame (201), two reset springs (202) and a pressing block (203), the right side of the fixed frame (201) is fixedly connected with the left side of the lower die (102), the left sides of the two reset springs (202) are fixedly connected with the left side in the interior of the fixed frame (201), the right sides of the two reset springs (202) are fixedly connected with the bottom of the left side of the pressing block (203), the surface of the pressing block (203) is attached to the surface of the fixed frame (201), and the front side and the rear side of the top in the interior of the pressing block (203) are respectively insertedly connected with the surfaces of the two left protrusions (103). The back cover mold (1) is used for manufacturing a back cover part. The two locking assemblies (2) are used for connecting and fastening the upper die (101) and the lower die (102).

2. The mating structure of a back cover mold according to claim 1, wherein: The right side of the pressing block (203) is fixedly connected with a buffer pad (3), and the right side of the buffer pad (3) is attached to the left sides of the upper die (101) and the lower die (102).

3. The mating structure of a back cover mold according to claim 1, wherein: The bottom of the left side of the pressing block (203) is fixedly connected with two limiting blocks (4), and the surfaces of the two limiting blocks (4) are slidingly connected with the interior of the fixed frame (201).

4. The mating structure of a back cover mold according to claim 1, wherein: The bottom of the lower die (102) is fixedly connected with a connecting plate (5), the bottom of the connecting plate (5) is fixedly connected with an elastic air cushion (6), and the bottom of the elastic air cushion (6) is fixedly connected with a bottom plate (7).

5. The mating structure of a back cover mold according to claim 4, wherein: The surface of the bottom plate (7) is fixedly connected with a plurality of vertical plates (8) which are uniformly distributed, and the surfaces of the plurality of vertical plates (8) are attached to the surfaces of the elastic air cushion (6), the connecting plate (5) and the lower die (102).

6. The mating structure of a back cover mold according to claim 1, wherein: The four corners of the top of the lower die (102) are fixedly connected with butt columns (9), and the surfaces of the plurality of butt columns (9) are respectively insertedly connected with the four corners in the interior of the upper die (101).

7. The mating structure of a back cover mold according to claim 1, wherein: The surface of the pressing block (203) is fixedly connected with a clamping block (10), and the left side of the clamping block (10) is fixedly connected with a handle (11).