Injection mold for a mobile phone case with lateral core-pulling block mechanism

Abstract

This utility model discloses a mobile phone case injection mold with a side-pulling core mechanism, including a fixed mold base plate and a moving mold base plate. A fixed template is fixedly installed on the fixed mold base plate, and a fixed mold core is provided on the fixed template. A moving template is fixedly installed on the moving mold base plate, and a moving mold core is provided on the moving template. A cavity is formed between the fixed mold core and the moving mold core. The side-pulling core mechanism on one side of the moving template includes a slider assembly. A guide device is provided between the slider assembly and the moving template, and the slider assembly can slide horizontally along the guide device. A core block unit for molding the side structure of the mobile phone case is detachably installed at the end of the slider assembly near the cavity. This utility model, through the side-pulling core mechanism, can achieve precise molding of the side structure of the mobile phone case. Each molding block of the core block unit can be detachably connected to the slider assembly, which facilitates quick replacement of the corresponding molding blocks according to different mobile phone case models, improving the flexibility and versatility of the mold.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a mobile phone case injection mold with a side core-pulling block mechanism. Background Technology

[0002] With the widespread use of smartphones, the market demand for phone cases, as accessories that protect phones and showcase personalization, is growing daily. In the injection molding process of phone cases, side-pulling mechanisms are often used to mold various complex structures such as button holes, charging ports, camera holes, and special decorative shapes.

[0003] Traditional side-pulling mechanisms for mobile phone case injection molds have several problems in practical use. For example, the design of the core-pulling structure is not ideal, making mold processing more difficult and costly. For some thin-walled or complex-structured mobile phone cases, it can easily cause product deformation or damage, affecting product quality. In addition, existing side-pulling mechanisms cannot adapt to minor modifications in the shape and position of side structures such as charger interfaces, headphone interfaces, and speaker holes, resulting in high redesign costs. Utility Model Content

[0004] The purpose of this utility model is to provide a solution to the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mobile phone case injection mold with a lateral core-pulling mechanism, comprising a fixed mold base plate and a movable mold base plate. A fixed template is fixedly installed on the fixed mold base plate, and a fixed mold core is provided on the fixed template. A movable template is fixedly installed on the movable mold base plate, and a movable mold core is provided on the movable template. A cavity for injection molding a mobile phone case is formed between the fixed mold core and the movable mold core. A lateral core-pulling mechanism is provided on one side of the movable template. The lateral core-pulling mechanism includes a slider assembly. A guide device is provided between the slider assembly and the movable template. The slider assembly can slide horizontally along the guide device. A core block unit is detachably installed at one end of the slider assembly near the cavity. The core block unit is used to form the lateral structure of the mobile phone case. A driving device for driving the slider assembly to slide is also provided on the fixed mold base plate.

[0006] Preferably, the core unit at different locations includes a charger interface molding block, an earphone interface molding block, a speaker hole molding block, and a button molding block located on one side.

[0007] Preferably, the slider assembly includes a first slider, a second slider, a third slider, and a fourth slider, which are located on the four sides of the moving mold core, respectively.

[0008] The third slider has a core unit on one side with a charger interface molding block, an earphone interface molding block, and a speaker hole molding block.

[0009] The core unit has an insertion block on the side away from the charger interface molding block. The third slider has an insertion hole that engages with the insertion block. A screw passes through the third slider and is threadedly connected to the insertion block.

[0010] Preferably, the guiding device includes a guide rail disposed on the moving template, and the bottom of the slider assembly is provided with a groove adapted to the guide rail, and the slider assembly is slidably connected to the guide rail through the groove.

[0011] Preferably, the driving device is an inclined guide post, one end of which is fixed on a fixed template, and the other end passes obliquely through the slider assembly. The slider assembly is provided with an inclined guide post hole that matches the inclined guide post, and the inclined guide post slides in conjunction with the inclined guide post hole.

[0012] Preferably, the bottom of the moving mold base plate is also provided with an ejection mechanism, which includes an ejector plate and an ejector pin. The ejector plate is located below the moving mold base plate, one end of the ejector pin is connected to the ejector plate, and the other end of the ejector pin passes through the moving mold plate and contacts the inner surface of the phone case.

[0013] Several guide blocks are provided through the ejector plate, and one end of each guide block is fixedly connected to the moving mold base plate.

[0014] Preferably, a sprue plate is installed above the fixed mold base plate, a sprue bushing is provided on one side of the sprue plate, the bottom of the sprue bushing is connected to the cavity, and a gate sleeve is provided on the top of the sprue bushing, the gate sleeve being adapted to the nozzle of the injection molding machine.

[0015] Preferably, the fixed mold plate and the moving mold plate are further provided with cooling water channels, which are spirally wound around the fixed mold core and the moving mold core.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model, through its side-pulling core block mechanism, can achieve precise molding of the side structure of the mobile phone case. Each molding block of the core block unit is detachably connected to the slider assembly through the plug-in part, which facilitates the quick replacement of the corresponding molding block according to different mobile phone case models, thereby improving the flexibility and versatility of the mold.

[0018] 2. The charger interface molding block, headphone interface molding block, speaker hole molding block and button molding block of this utility model are precisely corresponding to the corresponding structures on the mobile phone case. The guide device enables the slider assembly to maintain linear movement during the sliding process, avoids the slider assembly from deviating during the sliding process, and improves the molding accuracy. Attached Figure Description

[0019] Figure 1 This is an exploded structural diagram of the injection mold for a mobile phone case with a side-pulling block mechanism according to this utility model.

[0020] Figure 2 This is an exploded view of the rear side of the injection mold for a mobile phone case with a side core-pulling mechanism according to this utility model.

[0021] Figure 3 This is an exploded view of the front side of the injection mold for a mobile phone case with a side core-pulling mechanism according to this utility model.

[0022] Figure 4 This is an exploded view of the rear side of the injection mold for a mobile phone case with a side core-pulling mechanism according to this utility model.

[0023] Figure 5 This is a schematic diagram of the third slider of the mobile phone case injection mold with a side core-pulling block mechanism according to the present invention.

[0024] Figure 6 This is a schematic diagram of the core block unit of the mobile phone case injection mold with a lateral core-pulling mechanism according to this utility model.

[0025] In the diagram: 1. Fixed mold base plate; 2. Moving mold base plate; 3. Fixed mold plate; 4. Fixed mold core; 5. Moving mold plate; 6. Moving mold core; 7. Slider assembly; 8. First slider; 9. Second slider; 10. Third slider; 101. Connecting hole; 11. Fourth slider; 12. Core block unit; 121. Insert block; 13. Guide rail; 14. Slide groove; 15. Angled guide post hole; 16. Charger interface forming block; 17. Headphone interface forming block; 18. Speaker hole forming block; 19. Button forming block; 20. Ejector plate; 21. Ejector pin; 22. Guide block; 23. Sprue plate; 24. Sprue bushing; 25. Sprue bushing; 26. Cooling channel. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-4 This utility model provides a technical solution for a mobile phone case injection mold with a lateral core-pulling mechanism: it includes a fixed mold base plate 1 and a movable mold base plate 2. A fixed template 3 is fixedly installed on the fixed mold base plate 1, and a fixed mold core 4 is provided on the fixed template 3. A movable template 5 is fixedly installed on the movable mold base plate 2, and a movable mold core 6 is provided on the movable template 5. A cavity for injection molding a mobile phone case is formed between the fixed mold core 4 and the movable mold core 6. A lateral core-pulling mechanism is provided on one side of the movable template 5. The lateral core-pulling mechanism includes a slider assembly 7. A guide device is provided between the slider assembly 7 and the movable template 5. The slider assembly 7 can slide horizontally along the guide device. A core block unit 12 is detachably installed at one end of the slider assembly 7 near the cavity. The core block unit 12 is used to form the lateral structure of the mobile phone case. A driving device for driving the slider assembly 7 to slide is also provided on the fixed mold base plate 1.

[0028] Please refer to Figure 1 , Figure 2 ,and Figure 3 In this embodiment, the core unit 12 at different locations includes a charger interface molding block 16, an earphone interface molding block 17, a speaker hole molding block 18, and a button molding block 19 located on one side.

[0029] The slider assembly 7 includes a first slider 8, a second slider 9, a third slider 10, and a fourth slider 11, which are located on the four sides of the moving mold core 6. The first slider 8, second slider 9, third slider 10, and fourth slider 11 are responsible for molding different lateral structural parts of the phone case. The first slider 8 may be responsible for molding one edge of the phone case, the second slider 9 for molding the other edge, and the third slider 10 and fourth slider 11 may be responsible for molding the two upper corners or specific decorative structures of the phone case.

[0030] Please refer to Figure 5 as well as Figure 6 The third slider 10 has a charging interface molding block 16, an earphone interface molding block 17, and a speaker hole molding block 18 on one side of the core unit 12. The second slider 9 has a button molding block 19 on one side of the core unit 12. The connection method between the core unit 1 where the button molding block 19 is located and the second slider 9 is the same as the connection method between the core unit 12 on the third slider 10, which will not be described again here.

[0031] The chip unit 12 has a plug 121 on the side away from the charger interface molding block 16. The third slider 10 has a plug hole that engages with the plug 121. A screw passes through the connection hole 101 on the third slider 10 and is threadedly connected to the plug 121, thereby detachably locking the chip unit 12 onto the third slider 10.

[0032] Each molding block is detachably connected to the slider assembly 7 via the core unit 12, allowing for quick replacement of the corresponding molding block according to different phone case models, thus improving the flexibility and versatility of the mold. The charger interface molding block 16, headphone jack molding block 17, speaker hole molding block 18, and button molding block 19 precisely correspond to the corresponding structures on the phone case, ensuring that the injection-molded phone case achieves high precision and high quality even in the details.

[0033] Combination Figure 1 As shown, the guiding device includes a guide rail 13 mounted on the moving template 5, and a slide groove 14 adapted to the guide rail 13 is provided at the bottom of the slider assembly 7. The slider assembly 7 is slidably connected to the guide rail 13 through the slide groove 14. The guide rail 13 ensures that the slider assembly 7 can slide smoothly and accurately along the predetermined path.

[0034] Combination Figure 1 As shown, the driving device is an inclined guide post. One end of the inclined guide post is fixed to the fixed template 3, and the other end passes obliquely through the slider assembly 7. The slider assembly 7 is provided with an inclined guide post hole 15 that matches the inclined guide post. The inclined guide post and the inclined guide post hole 15 are slidably engaged. When the moving template 5 moves towards the fixed template 3 to close the mold, the inclined guide post slides along the inclined guide post hole 15. Due to the inclined design of the inclined guide post, it pushes the slider assembly 7 to slide horizontally along the guide device, thereby driving the core block unit 12 to move into the cavity and complete the side structure forming. When the moving template 5 moves away from the fixed template 3 to open the mold, the inclined guide post also slides along the inclined guide post hole 15. However, due to its inclination angle, the slider assembly 7 slides in the opposite direction under the action of the inclined guide post, driving the core block unit 12 to be pulled out from the cavity, realizing the side core pulling action.

[0035] Combination Figure 2 As shown, the bottom of the moving mold base plate 2 is also provided with an ejection mechanism, which includes an ejector plate 20 and an ejector pin 21. The ejector plate 20 is located below the moving mold base plate 2. One end of the ejector pin 21 is connected to the ejector plate 20, and the other end of the ejector pin 21 passes through the moving mold plate 5 and contacts the inner surface of the phone case. The ejection mechanism is used to ensure that the phone case can be evenly stressed and can be smoothly ejected from the mold.

[0036] Combination Figure 2 As shown, the ejector plate 20 is also provided with several guide blocks 22. One end of the guide block 22 is fixedly connected to the moving mold base plate 2 and is used to guide the sliding of the ejector plate 20.

[0037] Combination Figure 4As shown, a sprue plate 23 is installed above the fixed mold base plate 1. A sprue bushing 24 is provided on one side of the sprue plate 23. The bottom of the sprue bushing 24 is connected to the cavity. A gate sleeve 25 is provided on the top of the sprue bushing 24. The gate sleeve 25 is adapted to the nozzle of the injection molding machine. The design of the sprue bushing 24 enables the plastic melt to be injected into the cavity evenly and stably, thereby ensuring the injection molding quality of the mobile phone case.

[0038] Combination Figure 3 As shown, cooling channels 26 are also provided on the fixed mold plate 3 and the moving mold plate 5. The cooling channels 26 are spirally wrapped around the fixed mold core 4 and the moving mold core 6. The cooling channels 26 can effectively cool the mold and ensure that the temperature of the mold is controlled within a reasonable range during the injection molding process, thereby improving the molding quality and production efficiency of the mobile phone case.

[0039] Working principle: When injection molding a mobile phone case is required, molten plastic is first injected into the sprue bushing 25 through the nozzle of the injection molding machine. Then, the molten plastic flows into the mold cavity through the sprue bushing 24. At this time, the moving platen 5 moves towards the fixed platen 3. When the moving platen 5 and the fixed platen 3 close, the inclined guide post can drive the slider assembly 7 to slide towards the cavity, so that the core block unit 12 moves precisely into the cavity, completing the molding of the side structure of the mobile phone case.

[0040] After injection molding, the moving mold plate 5 moves away from the fixed mold plate 3, and the inclined guide post drives the slider assembly 7 to slide in the opposite direction, allowing the core block unit 12 to be extracted from the cavity, achieving lateral core pulling. Subsequently, the ejection mechanism begins operation, with the ejector pin 21 passing through the moving mold plate 5 and pressing against the inner surface of the phone case, evenly ejecting the phone case from the mold. Before the phone case is ejected, the cooling channel 26 continuously cools the mold, ensuring the mold temperature is controlled within a reasonable range, thereby improving the molding quality and production efficiency of the phone case.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] 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 mobile phone case injection mold with a lateral core-pulling mechanism, comprising a fixed mold base plate (1) and a movable mold base plate (2), characterized in that: A fixed template (3) is fixedly installed on the fixed mold base plate (1), and a fixed mold core (4) is provided on the fixed template (3). A movable template (5) is fixedly installed on the movable mold base plate (2), and a movable mold core (6) is provided on the movable template (5). A cavity for injection molding a mobile phone case is formed between the fixed mold core (4) and the movable mold core (6). A lateral core-pulling mechanism is provided on one side of the movable template (5). The lateral core-pulling mechanism includes a slider assembly (7). A guide device is provided between the slider assembly (7) and the movable template (5). The slider assembly (7) can slide horizontally along the guide device. A core block unit (12) is detachably installed at one end of the slider assembly (7) near the cavity. The core block unit (12) is used to form the lateral structure of the mobile phone case. A driving device for driving the slider assembly (7) to slide is also provided on the fixed mold base plate (1).

2. A mobile phone case injection mold with a lateral core-pulling mechanism according to claim 1, characterized in that, The core unit (12) at different locations includes a charger interface molding block (16), an earphone interface molding block (17), a speaker hole molding block (18), and a button molding block (19) located on one side.

3. A mobile phone case injection mold with a lateral core-pulling mechanism according to claim 2, characterized in that, The slider assembly (7) includes a first slider (8), a second slider (9), a third slider (10) and a fourth slider (11), which are located on the four sides of the moving mold core (6).

4. A mobile phone case injection mold with a lateral core-pulling mechanism according to claim 3, characterized in that, The third slider (10) has a charging interface molding block (16), an earphone interface molding block (17), and a speaker hole molding block (18) on one side of the core unit (12). The core unit (12) has a plug (121) on the side away from the charger interface molding block (16). The third slider (10) has a plug hole that is engaged with the plug (121). A screw passes through the third slider (10) and is threadedly connected to the plug (121).

5. A mobile phone case injection mold with a lateral core-pulling mechanism according to claim 1, characterized in that, The guiding device includes a guide rail (13) set on the moving template (5), and the bottom of the slider assembly (7) is provided with a groove (14) adapted to the guide rail (13). The slider assembly (7) is slidably connected to the guide rail (13) through the groove (14).

6. A mobile phone case injection mold with a lateral core-pulling mechanism according to claim 1, characterized in that, The driving device is an inclined guide post. One end of the inclined guide post is fixed on the fixed template (3), and the other end passes through the slider assembly (7) at an inclination. The slider assembly (7) is provided with an inclined guide post hole (15) that is adapted to the inclined guide post. The inclined guide post and the inclined guide post hole (15) slide together.

7. A mobile phone case injection mold with a lateral core-pulling mechanism according to claim 1, characterized in that, The bottom of the moving mold base plate (2) is also provided with an ejection mechanism, which includes an ejector plate (20) and an ejector pin (21). The ejector plate (20) is located below the moving mold base plate (2). One end of the ejector pin (21) is connected to the ejector plate (20), and the other end of the ejector pin (21) passes through the moving mold plate (5) and contacts the inner surface of the mobile phone case.

8. A mobile phone case injection mold with a lateral core-pulling mechanism according to claim 7, characterized in that, A plurality of guide blocks (22) are provided through the ejector plate (20), and one end of the guide block (22) is fixedly connected to the moving mold base plate (2).

9. A mobile phone case injection mold with a lateral core-pulling mechanism according to claim 1, characterized in that, A sprue plate (23) is installed above the fixed mold base plate (1). A sprue bushing (24) is provided on one side of the sprue plate (23). The bottom of the sprue bushing (24) is connected to the cavity. A sprue sleeve (25) is provided on the top of the sprue bushing (24). The sprue sleeve (25) is adapted to the nozzle of the injection molding machine.

10. A mobile phone case injection mold with a lateral core-pulling mechanism according to claim 1, characterized in that, Cooling channels (26) are also provided on the fixed mold plate (3) and the moving mold plate (5), and the cooling channels (26) are spirally wrapped around the fixed mold core (4) and the moving mold core (6).

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