Double-color injection mold for electronic product shell

Abstract

The utility model discloses an electronic product shell double-color injection mold which comprises an upper fixing plate, an upper mold plate arranged on one side of the upper fixing plate, a lower mold plate arranged on one side of the upper mold plate, a partition plate arranged on one side of the lower mold plate and a lower fixing plate arranged on one side of the partition plate. Driving blocks are further arranged on the two sides of the upper mold plate, a synchronous discharging assembly is arranged on the partition plate, the synchronous discharging assembly moves oppositely along with the driving blocks when the upper mold plate and the lower mold plate are closed, and the synchronous discharging assembly resets and moves when the upper mold plate and the lower mold plate are separated to eject out the formed arc-shaped double-color shell. According to the automatic discharging device, the formed arc-shaped double-color shell can be automatically ejected out of the arc-shaped forming cavity, automatic discharging of the arc-shaped double-color shell is completed, manual taking is not needed, and the discharging efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of electronic component processing technology, specifically relating to a two-color injection mold for electronic product casings. Background Technology

[0002] With the improvement of consumption level, consumers not only pay attention to the quality of electronic product casings, but also pay more and more attention to the decorative effect of their surface. Products with fashionable and gorgeous appearance are very competitive in the market. Currently, some electronic casings are two-color casings, and some are curved two-color casings. Two-color and curved two-color casings are more beautiful. Curved two-color casings are usually made by two-color injection molding.

[0003] As disclosed in the utility model patent application CN219445945U, a two-color injection mold for outer shell includes a lower mold, an upper mold, a cold water pipe, and an ejection mechanism. The upper mold is located above the lower mold, and the cold water pipe and the ejection mechanism are both located inside the lower mold. A molding cavity is formed at the middle position on the upper surface of the upper mold, and the front edge of the molding cavity penetrates through the lower mold. The cold water pipe is arranged around the outer wall of the molding cavity and fits against the outer wall of the molding cavity. This utility model is equipped with a cold water pipe and an ejection mechanism. The ejection mechanism, with its ejection plate, baffle, and lifting bracket, can drive the baffle to move away from the front end of the molding cavity, exposing the front edge of the molding cavity. This makes it easier for operators to remove the molded outer shell during subsequent ejection. This solution creates a notch at the front edge of the molding cavity and works with the ejection plate to eject the outer shell mold, thus facilitating mold removal. However, the above technical solution cannot quickly demold the arc-shaped two-color outer shell during the demolding process. It cannot eject the molded arc-shaped two-color outer shell from the mold cavity, resulting in low unloading efficiency. Therefore, we propose a two-color injection mold for electronic product outer shells. Utility Model Content

[0004] The purpose of this utility model is to provide a two-color injection mold for electronic product casings, so as to solve the problems mentioned in the background art, such as the inability to quickly demold the arc-shaped two-color casing during the demolding process, the inability to eject the molded arc-shaped two-color casing from the mold cavity during the demolding process, and the low unloading efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a two-color injection mold for electronic product casings, comprising an upper fixed plate, an upper template disposed on one side of the upper fixed plate, a lower template disposed on one side of the upper template, a partition plate disposed on one side of the lower template, and a lower fixed plate disposed on one side of the partition plate. The upper fixed plate is provided with a first injection port and a second injection port. Driving blocks are also provided on both sides of the upper template. A synchronous ejection component is provided on the partition plate. When the upper and lower templates are closed, the synchronous ejection component moves in opposite directions with the driving blocks. When the upper and lower templates are separated, the synchronous ejection component resets and moves to eject the formed arc-shaped two-color casing.

[0006] Preferably, the synchronous discharge assembly includes a driven wedge block, which is disposed at one end of a connecting rod. The connecting rod is movably disposed within an adjustment port, which is disposed on both sides of a partition plate and communicates with an inner cavity. The inner cavity is disposed within the partition plate, and the other end of the connecting rod is connected to a carrier plate. An active wedge block is disposed on the carrier plate. By moving the driving block, the two sets of carrier plates can be driven to move in opposite directions.

[0007] Preferably, multiple sets of first springs are provided on one side surface of the inner cavity, and the other end of the first spring is connected to the carrier plate. The carrier plate can be reset and moved by the first spring.

[0008] Preferably, the lower template is provided with an arc-shaped cavity, and the corners of the arc-shaped cavity are provided with a top material structure that moves with the active wedge.

[0009] Preferably, the top material structure includes a mounting hole, which is located at the corner of the arc-shaped cavity. A top pin is installed in the mounting hole, a support rod is installed at one end of the top pin, and a support wedge is installed at one end of the support rod. By moving the active wedge, four sets of top pins can be driven to be ejected synchronously to complete the unloading of the formed arc-shaped two-color shell.

[0010] Preferably, a second spring is sleeved on the support rod, one end of the second spring is connected to the support wedge block, and the other end of the second spring is connected to the bottom of the lower template. By setting the second spring, the top pin can be driven to automatically reset and move.

[0011] Preferably, the end of the top pin is provided with an arc-shaped cut surface, and the arc-shaped bevel fits with the arc-shaped surface of the arc-shaped molding cavity, which can ensure the flatness of the molding surface of the arc-shaped two-color shell, and at the same time facilitate the ejection of the arc-shaped two-color shell, thereby increasing the contact area between the contact top pin and the arc-shaped two-color shell.

[0012] Preferably, guide posts are provided on the corners of the lower fixed plate, and the guide posts are movably disposed in guide holes. The guide holes are located at the corners of the upper fixed plate, which can guide the movement of the lower fixed plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention can automatically ensure the flatness of the arc-shaped molding cavity during mold closing, thus guaranteeing the molding quality of the arc-shaped two-color shell. At the same time, during mold opening, it can automatically eject the molded arc-shaped two-color shell from the arc-shaped molding cavity, completing the automatic unloading of the arc-shaped two-color shell without the need for manual handling, thereby improving unloading efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the synchronous discharge component in this utility model;

[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This is a schematic diagram of the right half of the cross-sectional structure of the middle partition and the lower template of this utility model;

[0019] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0020] Figure 6 This is a schematic diagram of the top pin structure in this utility model;

[0021] In the diagram: 1. Upper fixing plate; 2. First injection port; 3. Second injection port; 4. Upper template; 5. Drive block; 6. Arc-shaped cavity; 7. Synchronous discharge assembly; 8. Lower template; 9. Lower fixing plate; 10. Spacer plate; 11. Guide post; 12. Guide hole; 61. Support wedge; 62. Second spring; 63. Top pin; 64. Mounting hole; 65. Support rod; 66. Arc-shaped section; 71. Carrier plate; 72. Active wedge; 73. Adjustment port; 74. Driven wedge; 75. Connecting rod; 76. First spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5This utility model provides a technical solution: a two-color injection mold for electronic product shells, including an upper fixed plate 1, an upper template 4 on one side of the upper fixed plate 1, a lower template 8 on one side of the upper template 4, a partition plate 10 on one side of the lower template 8, and a lower fixed plate 9 on one side of the partition plate 10. The upper fixed plate 1 is provided with a first injection port 2 and a second injection port 3. Through the arrangement of the first injection port 2 and the second injection port 3, two colors of molding materials can be injected into the arc-shaped cavity 6 of the upper template 4 and the lower template 8. The upper template 4 is also provided with driving blocks 5 on both sides. Specifically, the driving blocks 5 have an isosceles trapezoidal structure. Two sets of synchronous ejection components 7 are symmetrically arranged on the partition plate 10. When the upper template 4 and the lower template 8 are closed, the synchronous ejection components 7 move in opposite directions with the driving blocks 5. When the upper template 4 and the lower template 8 are separated, the synchronous ejection components 7 reset and move to eject the molded arc-shaped two-color shell.

[0024] The synchronous discharge assembly 7 includes a driven wedge 74, which is disposed at one end of a connecting rod 75. The connecting rod 75 is movably disposed within an adjustment port 73, which is disposed on both sides of a partition plate 10 and communicates with an inner cavity. The inner cavity is disposed within the partition plate. The other end of the connecting rod 75 is connected to a carrier plate 71, and an active wedge 72 is disposed on the carrier plate 71. When the upper mold plate 4 and the lower mold plate 8 are closed, the movement of the drive block 5 can drive the two sets of carrier plates 71 to move in opposite directions.

[0025] Furthermore, multiple sets of first springs 76 are provided on one side surface of the inner cavity. The other end of the first spring 76 is connected to the carrier plate 71. When the carrier plate 71 moves, the carrier plate 71 compresses the first spring 76, which can reset the carrier plate 71.

[0026] Please see Figure 4 and Figure 5 An arc-shaped cavity 6 is provided on the lower template 8. At the corners of the arc-shaped cavity 6, a material ejector structure is provided that moves with the active wedge 72. The material ejector structure includes a mounting hole 64, which is located at the corner of the arc-shaped cavity 6. A top pin 63 is provided in the mounting hole 64. A support rod 65 is provided at one end of the top pin 63, and a support wedge 61 is provided at the other end of the support rod 65. Through the transmission between the active wedge 72 and the support wedge 61, four sets of top pins 63 can be driven to be ejected synchronously to complete the unloading of the formed arc-shaped two-color shell.

[0027] Furthermore, a second spring 62 is sleeved on the support rod 65. One end of the second spring 62 is connected to the support wedge block 61, and the other end of the second spring 62 is connected to the bottom of the lower template 8. Through the setting of the second spring 62, the top pin 63 can be driven to automatically reset and move.

[0028] Please see Figure 6The end of the top pin 63 is provided with an arc-shaped cut surface 66. The arc-shaped bevel fits the arc-shaped surface of the arc-shaped molding cavity 6, which can ensure the flatness of the arc-shaped two-color shell molding surface, and at the same time facilitate the ejection of the arc-shaped two-color shell, increasing the contact area between the contact top pin 63 and the arc-shaped two-color shell.

[0029] Furthermore, guide pillars 11 are provided on the corners of the lower fixed plate 9. The guide pillars 11 are movably disposed in the guide holes 12. The guide holes 12 are disposed at the corners of the upper fixed plate 1. When the lower fixed plate 9 is in the mold opening or closing action, the lower fixed plate 9 drives the guide pillars 11 to move in the guide holes 12, which can guide the movement of the lower fixed plate 9.

[0030] Working principle and usage process of this utility model:

[0031] First, the upper fixing plate 1 and the lower fixing plate 9 are installed on the injection molding machine. Then, the mold is closed by the injection molding machine. During the mold closing process, the drive block 5 is in contact with the two sets of driven wedges 74. As the drive block 5 moves, it drives the two sets of driven wedges 74 to move in opposite directions. The movement of the driven wedges 74 drives the two sets of carrier plates 71 to move in opposite directions within the inner cavity. The movement of the carrier plates 71 drives the active wedge 72 to move. At the same time, the carrier plates 71 compress the first spring 76. When the upper mold plate 4 and the lower mold plate 8 are closed, the second spring 62, under the action of tension, causes the ejector pin 63 to be in contact with the surface of the arc-shaped cavity 6. Then, the two sets of colored molding materials are injected through the first injection molding machine. The material is injected into the arc-shaped cavity 6 through the material inlet 2 and the second injection port 3. After the arc-shaped two-color shell is formed, the mold is opened by the injection molding machine. At this time, the drive block 5 separates from the two sets of driven wedges 74. The first spring 76 drives the two sets of carrier plates 71 to reset and move. The reset and movement of the carrier plates 71 drives the two sets of active wedges 72 to move. When the active wedges 72 are in contact with the support wedges 61, the active wedges 72 drive the support wedges 61 to move. The support wedges 61 drive the four sets of ejector pins 63 to move through the support rod 65. Through the synchronous movement of the four sets of ejector pins 63, the formed arc-shaped two-color shell is ejected from the arc-shaped cavity 6, completing the automatic unloading operation.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A two-color injection mold for an electronic product casing, comprising an upper fixing plate (1), an upper template (4) disposed on one side of the upper fixing plate (1), a lower template (8) disposed on one side of the upper template (4), a partition plate (10) disposed on one side of the lower template (8), and a lower fixing plate (9) disposed on one side of the partition plate (10), characterized in that: The upper fixed plate (1) is provided with a first injection port (2) and a second injection port (3). The upper template (4) is also provided with driving blocks (5) on both sides. The partition plate (10) is provided with a synchronous discharge component (7). When the upper template (4) and the lower template (8) are closed, the synchronous discharge component (7) moves in opposite directions with the driving block (5). When the upper template (4) and the lower template (8) are separated, the synchronous discharge component (7) resets and moves to eject the formed arc-shaped two-color shell.

2. The two-color injection mold for electronic product casings according to claim 1, characterized in that: The synchronous discharge assembly (7) includes a driven wedge (74), which is disposed at one end of a connecting rod (75). The connecting rod (75) is movably disposed in an adjustment port (73), which is disposed on both sides of a partition plate (10). The adjustment port (73) communicates with an inner cavity, which is disposed within the partition. The other end of the connecting rod (75) is connected to a carrier plate (71), and an active wedge (72) is disposed on the carrier plate (71).

3. The two-color injection mold for electronic product casings according to claim 2, characterized in that: Multiple sets of first springs (76) are provided on one side surface of the inner cavity, and the other end of the first springs (76) is connected to the carrier plate (71).

4. The two-color injection mold for electronic product casings according to claim 1, characterized in that: The lower template (8) is provided with an arc-shaped cavity (6), and the corners of the arc-shaped cavity (6) are provided with a top material structure that moves with the active wedge (72).

5. The two-color injection mold for electronic product casings according to claim 4, characterized in that: The top material structure includes a mounting hole (64), which is located at the corner of the arc-shaped cavity (6). A top pin (63) is provided in the mounting hole (64), and a support rod (65) is provided at one end of the top pin (63). A support wedge (61) is provided at one end of the support rod (65).

6. The two-color injection mold for electronic product casings according to claim 5, characterized in that: A second spring (62) is sleeved on the support rod (65). One end of the second spring (62) is connected to the support wedge (61), and the other end of the second spring (62) is connected to the bottom of the lower template (8).

7. The two-color injection mold for electronic product casings according to claim 5, characterized in that: The top pin (63) has an arc-shaped cut surface (66) at its end, and the arc-shaped cut surface fits into the arc-shaped surface of the arc-shaped cavity (6).

8. The two-color injection mold for electronic product casings according to any one of claims 1-7, characterized in that: Guide posts (11) are provided on the corners of the lower fixing plate (9), and the guide posts (11) are movably disposed in the guide holes (12), which are located at the corners of the upper fixing plate (1).

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