Mould structure for textures of rear cover of mobile phone

Abstract

The utility model relates to the field of mobile phone rear cover texture processing, in particular to a mobile phone rear cover texture mold structure which comprises a base, a fixing seat is installed in the middle of the top end of the base, a lower mold is arranged on the top of the fixing seat, guide columns are installed on the periphery of the top of the fixing seat, and an upper mold is movably arranged above the lower mold through the guide columns. According to the utility model, the top extension end of the hydraulic rod assembly is downwards ejected and extended, so that the upper mold moves downwards until the upper mold is attached to the top of the lower mold, at the moment, the top of the lower limiting extension ring is attached to the bottom of the upper limiting extension ring, and the flexible sealing ring pads are all clamped in the corresponding limiting grooves; by means of the third clamping protruding blocks and the second clamping protruding blocks and the first clamping protruding blocks which are arranged in a staggered mode, the contact area between the upper die and the lower die is increased, and the upper die and the lower die are connected more tightly.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone back cover texture processing, in particular to a mold structure of a mobile phone back cover texture. Background Art

[0002] As an important part of the mobile phone, the back cover of the mobile phone not only protects the internal components of the mobile phone, but also affects the appearance design and user experience of the mobile phone. Some of the existing mobile phone back covers and mobile phone back cover textures are formed by injection molding.

[0003] During the injection molding process, the stability and precision of the mold are key factors in ensuring the quality of the connector. When the upper mold and the lower mold are not tightly connected during the injection molding process, the gap between the molds will become larger, which will easily affect the precision of the texture of the mobile phone back cover after injection molding. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a mold structure for the texture of a mobile phone back cover.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mold structure for a texture of a mobile phone back cover comprises a base, a fixing seat is installed at the middle of the top of the base, a lower mold is arranged on the top of the fixing seat, and guide columns are installed around the top of the fixing seat, and an upper mold is movably arranged above the lower mold through the guide columns;

[0007] A lower limit extension ring is installed above the outer wall of the lower mold, and first clamping protrusions are symmetrically installed on both sides of the top of the lower limit extension ring, and an upper limit extension ring is installed below the outer wall of the upper mold, and multiple flexible sealing ring pads are installed at equal distances in the upper limit extension ring below the upper mold, and first clamping grooves are opened on both sides of the bottom of the upper limit extension ring at the first clamping protrusions, and two second clamping protrusions are symmetrically installed on both sides of the bottom of the upper limit extension ring at the first clamping groove.

[0008] In addition, a preferred structure is that an injection molding protrusion is installed in the middle of the bottom of the upper mold, and the bottom of the upper mold is symmetrically installed with third clamping protrusions on both sides of the injection molding protrusion, and the third clamping protrusion is composed of three clamping blocks.

[0009] In addition, a preferred structure is that a mounting frame is installed on the top of the base outside the fixed seat, a hydraulic rod assembly is arranged on the top of the mounting frame, the top extending end of the hydraulic rod assembly is vertically downward, and the top end of the hydraulic rod assembly is connected to the upper mold.

[0010] In addition, a preferred structure is that a limiting groove is provided at the top of the outer wall of the lower mold at the flexible sealing ring gasket, and an injection molding cavity is provided in the middle of the top of the lower mold.

[0011] In addition, a preferred structure is that a third locking groove is formed on the top of the lower mold at the third locking protrusion.

[0012] In addition, a preferred structure is that a second locking groove is formed at the top of the lower limit extension ring at the second locking protrusion.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, the top extending end of the hydraulic rod assembly is extended downward, so that the upper mold moves downward until it is fitted with the top of the lower mold. At this time, the top of the lower limit extension ring is fitted with the bottom of the upper limit extension ring, and the flexible sealing ring gaskets are all clamped into the corresponding limit grooves. At the same time, the third clamping protrusion is clamped into the third clamping groove, the second clamping protrusion is clamped into the second clamping groove, and the first clamping protrusion is clamped into the first clamping groove. The contact area between the upper mold and the lower mold is enhanced by the third clamping protrusion and the staggered second clamping protrusions and the first clamping protrusions, so that the connection between the upper mold and the lower mold is tighter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a mold structure for a mobile phone back cover texture proposed by the utility model;

[0016] Figure 2 Schematic diagram of the structure of the upper mold;

[0017] Figure 3 It is a schematic diagram of the structure of the lower mold.

[0018] In the figure: 1. base; 2. mounting frame; 3. hydraulic rod assembly; 4. lower mold; 41. lower limit extension ring; 411. first clamping protrusion; 412. second clamping groove; 42. third clamping groove; 5. upper mold; 51. upper limit extension ring; 511. flexible sealing ring gasket; 512. first clamping groove; 513. second clamping protrusion; 52. third clamping protrusion. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3A mold structure for the texture of a mobile phone back cover includes a base 1, a fixed seat is installed in the middle of the top of the base 1, a lower mold 4 is arranged on the top of the fixed seat, and guide columns are installed around the top of the fixed seat. An upper mold 5 is movably arranged above the lower mold 4 through the guide columns, wherein the guide columns can ensure that the upper mold 5 remains stable during the movement.

[0021] In addition, a lower limit extension ring 41 is installed above the outer wall of the lower mold 4, and first clamping protrusions 411 are symmetrically installed on both sides of the top of the lower limit extension ring 41, and an upper limit extension ring 51 is installed below the outer wall of the upper mold 5, and a plurality of flexible sealing ring gaskets 511 are installed equidistantly in the upper limit extension ring 51 below the upper mold 5, and first clamping grooves 512 are provided on both sides of the bottom of the upper limit extension ring 51 at the first clamping protrusion 411, and two second clamping protrusions 513 are symmetrically installed on both sides of the first clamping groove 512 at the bottom of the upper limit extension ring 51.

[0022] At the same time, an injection molding protrusion is installed in the middle of the bottom of the upper mold 5, and the bottom of the upper mold 5 is symmetrically installed with third clamping protrusions 52 on both sides of the injection molding protrusion. The third clamping protrusion 52 is composed of three clamping blocks, the tops of the three clamping blocks are flush, and the heights of the three clamping blocks gradually increase from one side of the injection molding protrusion to the outside.

[0023] At the same time, a mounting frame 2 is installed on the top of the base 1 outside the fixed seat, and a hydraulic rod assembly 3 is arranged on the top of the mounting frame 2. The top extending end of the hydraulic rod assembly 3 is vertically downward, and the top end of the hydraulic rod assembly 3 is connected to the upper mold 5. The upper mold 5 can be moved by the hydraulic rod assembly 3. It is worth noting that the specific structure, working mode and external hydraulic rod assembly of the lower mold 4 and the upper mold 5 are all existing technologies currently disclosed on the market, and do not belong to the main technical problems to be solved in this technical solution, so they are not elaborated in the present utility model.

[0024] In addition, a limiting groove is provided at the top of the outer wall of the lower mold 4 at the flexible sealing ring gasket 511, and an injection cavity is provided in the middle of the top of the lower mold 4. It is worth noting that the flexible sealing ring gasket 511 is made of a high temperature resistant and corrosion resistant material.

[0025] Furthermore, a third locking groove 42 is formed on the top of the lower mold 4 at the third locking protrusion 52 .

[0026] Furthermore, a second locking groove 412 is formed at the top of the lower limit extension ring 41 at the second locking protrusion 513 .

[0027] Furthermore, it is worth mentioning that when the lower mold 4 is fitted with the upper mold 5 , the top of the lower limit extension ring 41 fits with the bottom of the upper limit extension ring 51 , and the flexible sealing ring gaskets 511 are both clamped into the corresponding limit grooves.

[0028] In the present embodiment, the extending end of the hydraulic rod assembly 3 is extended downward, so that the upper mold 5 moves downward until it is in contact with the top of the lower mold 4. At this time, the top of the lower limit extension ring 41 is in contact with the bottom of the upper limit extension ring 51, and the flexible sealing ring gasket 511 is clamped into the corresponding limit groove. At the same time, the third clamping protrusion 52 is clamped into the third clamping groove 42, the second clamping protrusion 513 is clamped into the second clamping groove 412, and the first clamping protrusion 411 is clamped into the first clamping groove 512. The contact area between the upper mold 5 and the lower mold 4 is enhanced by the third clamping protrusion 52 and the staggered second clamping protrusion 513 and the first clamping protrusion 411, so that the connection between the upper mold 5 and the lower mold 4 is tighter.

[0029] In the utility model, the top extending end of the hydraulic rod assembly 3 is extended downward, so that the upper mold 5 moves downward until it is in contact with the top of the lower mold 4. At this time, the top of the lower limit extension ring 41 is in contact with the bottom of the upper limit extension ring 51, and the flexible sealing ring gasket 511 is clamped into the corresponding limit groove. At the same time, the third clamping protrusion 52 is clamped into the third clamping groove 42, the second clamping protrusion 513 is clamped into the second clamping groove 412, and the first clamping protrusion 411 is clamped into the first clamping groove 512. The contact area between the upper mold 5 and the lower mold 4 is enhanced by the third clamping protrusion 52 and the staggered second clamping protrusions 513 and the first clamping protrusions 411, so that the connection between the upper mold 5 and the lower mold 4 is tighter.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mold structure for a textured back cover of a mobile phone, comprising a base (1), characterized in that: A fixing seat is installed at the middle of the top of the base (1), a lower mold (4) is arranged on the top of the fixing seat, and guide columns are installed around the top of the fixing seat, and an upper mold (5) is movably arranged above the lower mold (4) via the guide columns; A lower limit extension ring (41) is installed above the outer wall of the lower mold (4), and first clamping protrusions (411) are symmetrically installed on both sides of the top of the lower limit extension ring (41), and an upper limit extension ring (51) is installed below the outer wall of the upper mold (5), and a plurality of flexible sealing rings (511) are installed at equal distances in the upper limit extension ring (51) below the upper mold (5), and first clamping grooves (512) are provided on both sides of the bottom of the upper limit extension ring (51) at the first clamping protrusion (411), and two second clamping protrusions (513) are symmetrically installed on both sides of the bottom of the upper limit extension ring (51) at the first clamping groove (512).

2. The mold structure of the texture of the mobile phone back cover according to claim 1, characterized in that: An injection molding convex block is installed in the middle of the bottom of the upper mold (5), and third clamping convex blocks (52) are symmetrically installed on both sides of the injection molding convex block at the bottom of the upper mold (5), and the third clamping convex block (52) is composed of three clamping blocks.

3. The mold structure of the texture of the mobile phone back cover according to claim 1, characterized in that: A mounting frame (2) is installed on the top of the base (1) outside the fixing seat, and a hydraulic rod assembly (3) is arranged on the top of the mounting frame (2). The top extension end of the hydraulic rod assembly (3) is vertically downward, and the top end of the hydraulic rod assembly (3) is connected to the upper mold (5).

4. The mold structure of the texture of the mobile phone back cover according to claim 1, characterized in that: A limiting groove is provided at the top of the outer wall of the lower mold (4) at the flexible sealing ring pad (511), and an injection molding cavity is provided at the middle of the top of the lower mold (4).

5. The mold structure of the texture of the mobile phone back cover according to claim 1, characterized in that: A third locking groove (42) is provided at the top of the lower mold (4) at the third locking protrusion (52).

6. The mold structure of the texture of the mobile phone back cover according to claim 1, characterized in that: A second locking groove (412) is formed at the top of the lower limit extension ring (41) at the second locking protrusion (513).

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