Electronic equipment shell mold

Abstract

The utility model discloses an electronic equipment shell mould which comprises an upper mould and a lower mould, the upper end of the lower mould is provided with a concave mould cavity, a plurality of positioning columns are arranged in the concave mould cavity, two opposite side walls of each positioning column are provided with inner grooves, matched clamping blocks are inserted into inner cavities of the inner grooves, and elastic pieces connected with the clamping blocks are arranged in inner cavities of the positioning columns; when processing is prepared, the positioning column is sleeved with an iron sheet, and the clamping block is in lap joint with the upper end of the iron sheet. The movable clamping block is arranged on the positioning column and used for limiting the iron sheet connected to the positioning column in a sleeving mode, so that the iron sheet is kept in the horizontal state to be matched with wrapping of a plastic part after injection molding.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to an electronic device housing mold. Background Technology

[0002] Plastic-coated metal injection molded products are common injection molded products nowadays. During the processing of plastic-coated metal products, the metal sheet needs to be positioned on the lower mold core before mold closing and injection molding. Existing connecting piece products are made by injection molding multiple metal sheets, with the middle metal sheet being U-shaped. After injection molding, the plastic part will wrap all the metal sheets to form a whole.

[0003] For example, Chinese utility model patent, publication number CN 222387480 U, discloses a metal sheet positioning mechanism for plastic-coated iron injection molds. Through the coordinated use of threaded columns, driven gears, and gear transmission components, it can adjust the placement height of the metal sheet in the middle of the connecting piece, adapting to the injection molding processing of connecting pieces of different specifications.

[0004] However, the above method can only be used for iron sheets with corresponding holes. When the holes on the iron sheet are circular, the iron sheet is prone to tilting, which will affect the effect of the plastic part wrapping the iron sheet after injection molding. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide an electronic device housing mold that solves the problem that when using the iron sheet positioning mechanism of the plastic-coated iron injection mold disclosed in CN 222387480 U, the iron sheet is prone to tilting when the hole on the iron sheet is circular, which in turn affects the effect of the plastic part wrapping the iron sheet after injection molding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an electronic device housing mold, comprising an upper mold and a lower mold, wherein the upper end of the lower mold is provided with a concave cavity, and a plurality of positioning posts are provided in the concave cavity; the two opposite side walls of the positioning posts are provided with inner grooves, and a matching locking block is inserted into the inner cavity of the inner groove; the inner cavity of the positioning post is provided with an elastic element connected to the locking block; when preparing for processing, an iron sheet is sleeved on the positioning post, and the locking block overlaps with the upper end of the iron sheet.

[0007] Furthermore, the inner groove on one side of the positioning post is divided into a first groove and a second groove that are aligned vertically, and a locking block is inserted into both the first groove and the second groove.

[0008] Furthermore, there is one inner groove, which is located on the upper part of the bottom end of the positioning post. When the iron sheet is sleeved on the positioning post, the upper end of the iron sheet overlaps with the locking block, and the lower end of the iron sheet overlaps with the upper end face of the die cavity.

[0009] Furthermore, the inner groove has an inclined groove extending towards the outer wall of the positioning post on the side closest to the inner cavity of the positioning post.

[0010] Furthermore, the distance between the end of the inclined groove closest to the outer wall of the positioning post and the outer wall of the positioning post is the first spacing.

[0011] Furthermore, the inner groove is an inclined cavity with the inclined direction facing downward, and the locking block is inserted into the inclined cavity.

[0012] Furthermore, the elastic element is disposed inside the inclined cavity, and one end of the elastic element is connected to the tail end of the inclined cavity.

[0013] Furthermore, the elastic element is a spring or rubber.

[0014] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, by providing a movable locking block on the positioning post, the iron sheet sleeved on the positioning post is limited, thereby keeping the iron sheet in a horizontal state to cooperate with the plastic part after injection molding.

[0015] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a perspective view of Embodiment 1 of this utility model.

[0017] Figure 2 This is a three-dimensional view of the lower mold of Embodiment 1 of this utility model.

[0018] Figure 3 This is a first-view perspective three-dimensional view of the positioning post of Embodiment 1 of this utility model.

[0019] Figure 4 This is a cross-sectional view of the positioning post in Embodiment 1 of this utility model.

[0020] Figure 5 This is a second-view perspective three-dimensional view of the positioning column of Embodiment 1 of this utility model.

[0021] Explanation of reference numerals in the attached diagram:

[0022] First spacing 1;

[0023] Upper mold 10, lower mold 20, cavity 21;

[0024] Positioning post 30, inner groove 31, first groove 311, second groove 312, inclined groove 313, locking block 32, elastic element 33, inclined cavity 34;

[0025] 40 iron sheets. Detailed Implementation

[0026] Please refer to Figure 1-5As shown, this invention illustrates the specific structure of a preferred first embodiment of the present invention, which is an electronic device housing mold, including an upper mold 10 and a lower mold 20. The upper end of the lower mold 20 is provided with a cavity 21, and the cavity 21 is provided with a plurality of positioning posts 30. The two opposite side walls of the positioning posts 30 are provided with inner grooves 31, and the inner cavities of the inner grooves 31 are fitted with matching locking blocks 32. The inner cavities of the positioning posts 30 are provided with elastic members 33 connected to the locking blocks 32. When ready for processing, an iron sheet 40 is sleeved on the positioning posts 30, and the locking blocks 32 overlap with the upper end of the iron sheet 40. Compared with the prior art, which uses movable positioning posts and provides a notch at the upper end of the positioning posts to form a step to position the iron sheet placed on them, but the iron sheet is prone to tilting when the inner cavity of the iron sheet is fitted with the step. The mold for the casing of this electronic device uses a movable locking block 32 on the positioning post 30 to limit the iron piece 40 sleeved on the positioning post 30, thereby keeping the iron piece 40 in a horizontal state to cooperate with the plastic part after injection molding.

[0027] Specifically, when the iron sheet 40 is fitted onto the positioning post 30, the locking block 32 is pressed to move into the inner groove 31 until the iron sheet 40 can pass through the locking block 32. At this time, the locking block 32 is released, and the locking block 32 pops out under the drive of the elastic element 33 to form an overlap with the iron sheet 40, thereby forming an overlap with the iron sheet 40.

[0028] In addition, during injection molding, the clamping block 32 will move into the inner groove 31 under the pressure of air and the extruded plastic. When the injection molding is completed, the outermost end of the clamping block 32 can be parallel to the surface wall of the positioning post 30, so that when the injection-molded workpiece is taken out from the lower mold 20, it will not be affected by the clamping block 32.

[0029] In one embodiment, for example, the inner groove 31 on one side of the positioning post 30 is divided into a first groove 311 and a second groove 312 aligned vertically, and a locking block 32 is inserted into both the first groove 311 and the second groove 312. When there are two inner grooves 31, after the iron sheet 40 is placed on the positioning post 30, it is clamped by the locking blocks 32 in the first groove 311 and the second groove 312, so that the iron sheet 40 is suspended in the air to cooperate with the plastic part to wrap the iron sheet after injection molding.

[0030] In another embodiment, for example, there is one inner groove 31, which is located above the bottom end of the positioning post 30. When the iron sheet 40 is sleeved on the positioning post 30, the upper end of the iron sheet 40 overlaps with the locking block 32, and the lower end of the iron sheet 40 overlaps with the upper end face of the mold cavity 21. Through the overlap between the lower end face of the locking block 32 and the upper end face of the iron sheet 40, the iron sheet 40 is displaced under the push of liquid and air pressure during injection molding.

[0031] For example, the inner groove 31 has an inclined groove 313 extending towards the outer wall of the positioning post 30 on the side near the inner cavity of the positioning post 30. Due to the opening of the inclined groove 313 on the inner groove 31, the inlet end of the inner groove 31 is blade-shaped, so that when the locking block 32 moves into the inner groove 31, the adhesive on the surface of the locking block 32 can be separated from the locking block 32 under the push of the inner groove 31, so as to prevent the adhesive from entering the inner groove 31.

[0032] For example, the distance between the end of the inclined groove 313 closest to the outer wall of the positioning post 30 and the outer wall of the positioning post 30 is the first spacing 1. The setting of the first spacing 1 provides a certain thickness for the inner groove 31 with the inclined groove 313, so as to increase the service life of the inner groove 31 and avoid the inner groove 31 from being easily damaged due to being too thin.

[0033] For example, the inner groove 31 is an inclined cavity 34, the inclined cavity 34 is inclined downward, and the locking block 32 is inserted into the inclined cavity 34. The opening of the inclined cavity 34 allows the locking block 32 to slide down naturally when there is no external force pushing it, so as to clamp the iron sheet 40.

[0034] For example, the elastic element 33 is disposed in the inclined cavity 34, and one end of the elastic element 33 is connected to the tail end of the inclined cavity 34. The elastic element 33 can limit the locking block 32 in the inclined cavity 34 to prevent the locking block 32 from separating from the inclined cavity 34.

[0035] The elastic element 33 is either a spring or rubber. Both the spring and the rubber are made of high-temperature resistant materials.

[0036] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An electronic device housing mold, comprising an upper mold (10) and a lower mold (20), wherein the upper end of the lower mold (20) is provided with a cavity (21), and the cavity (21) is provided with a plurality of positioning pins (30), characterized in that: The positioning post (30) has an inner groove (31) on its two opposite side walls. A matching locking block (32) is inserted into the inner cavity of the inner groove (31). The positioning post (30) has an elastic element (33) connected to the locking block (32). When preparing for processing, an iron sheet (40) is sleeved on the positioning post (30), and the locking block (32) overlaps with the upper end of the iron sheet (40).

2. The electronic device housing mold according to claim 1, characterized in that: The inner groove (31) on one side of the positioning post (30) is divided into a first groove (311) and a second groove (312) aligned vertically. Each of the first groove (311) and the second groove (312) is fitted with a locking block (32).

3. The electronic device housing mold according to claim 1, characterized in that: The inner groove (31) is one, and the inner groove (31) is located on the upper part of the bottom end of the positioning post (30). When the iron sheet (40) is sleeved on the positioning post (30), the upper end of the iron sheet (40) overlaps with the locking block (32), and the lower end of the iron sheet (40) overlaps with the upper end surface of the die cavity (21).

4. The electronic device housing mold according to claim 1, characterized in that: The inner groove (31) has an inclined groove (313) extending toward the outer wall of the positioning post (30) on the side near the inner cavity of the positioning post (30).

5. The electronic device housing mold according to claim 4, characterized in that: The distance between the end of the inclined groove (313) closest to the outer wall of the positioning post (30) and the outer wall of the positioning post (30) is the first spacing (1).

6. The electronic device housing mold according to claim 1, characterized in that: The inner groove (31) is an inclined cavity (34), the inclined cavity (34) is inclined downward, and the locking block (32) is inserted into the inclined cavity (34).

7. The electronic device housing mold according to claim 6, characterized in that: The elastic element (33) is disposed in the inclined cavity (34), and one end of the elastic element (33) is connected to the tail end of the inclined cavity (34).

8. The electronic device housing mold according to claim 7, characterized in that: The elastic element (33) is a spring or rubber.

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