Highly compatible mobile phone shell precision injection mold

Abstract

The utility model discloses a high compatible mobile phone shell precision injection mold, including lower die seat and upper die seat, the top fixedly connected with lower die plate of lower die seat, the bottom fixedly connected with upper die plate of upper die seat, form injection cavity between lower die plate and upper die plate, the top of lower die plate is provided with a plurality of transformable core, the bottom of upper die plate is provided with a plurality of transformable groove, transformable core and transformable groove position correspond to each other, through the structure of transformable core and transformable groove is changed to realize the adjustment of position and size, to adapt to the injection demand of different model mobile phone shell, be connected with hot runner nozzle on injection cavity, hot runner nozzle with injection molding machine's delivery port intercommunication, for even injection of molten plastics into injection cavity. The utility model discloses through design transformable core and transformable groove, has realized to the high compatibility of the injection demand of different model mobile phone shell.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically a highly compatible precision injection mold for mobile phone cases. Background Technology

[0002] With the continuous upgrading of mobile phones, the variety of phone cases has also increased significantly. To meet market demand for different phone cases, injection molds need to have greater compatibility. Traditional phone case injection molds are often designed for specific models. When producing cases for other models, a completely new mold usually needs to be manufactured. However, some different phone models have the same overall size and shape, with only minor differences. Current phone case injection mold technology still requires a completely different set of molds to produce multiple models and specifications, resulting in high production costs, significant capital investment for companies, and weak market competitiveness. Utility Model Content

[0003] The purpose of this invention is to provide a highly compatible precision injection mold for mobile phone cases to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a highly compatible precision injection mold for mobile phone cases, comprising a lower mold base and an upper mold base. A lower template is fixedly connected to the top of the lower mold base, and an upper template is fixedly connected to the bottom of the upper mold base. An injection cavity is formed between the lower and upper templates. A plurality of reversible cores are provided on the top of the lower template, and a plurality of reversible grooves are correspondingly provided on the bottom of the upper template. The reversible cores and reversible grooves are positioned in a mutually corresponding manner. By changing the structure of the reversible cores and reversible grooves... The position and size can be adjusted to adapt to the injection molding requirements of different mobile phone cases. A connecting block is fixedly set at the bottom of the changeable core. A connecting groove is set on the lower mold plate for connecting and cooperating with the connecting block. A connecting post extends through the side of the lower mold plate into the connecting groove. The connecting post is inserted into the connecting block. A hot runner nozzle is connected to the injection cavity. The hot runner nozzle is connected to the discharge port of the injection molding machine for uniformly injecting molten plastic into the injection cavity. A guide mechanism is also provided between the lower mold base and the upper mold base.

[0005] Preferably, the convertible core includes a first molding component and a second molding component, and the first molding component and the second molding component are detachably connected by a connecting structure.

[0006] Preferably, the first molding component includes a first step molding block, a first camera hole molding block, a second camera hole molding block, and a fill light hole molding block, wherein the first camera hole molding block, the second camera hole molding block, and the fill light hole molding block are located on one side of the first step molding block.

[0007] Preferably, the second molding component includes a second step molding block and a third camera hole molding block, wherein the third camera hole molding block is fixedly installed on the second step molding block.

[0008] Preferably, the connection structure includes a pin and a socket. The pin is fixedly installed on one side of the second step forming block, and the socket is opened on one side of the first step forming block, with its position opposite to that of the pin.

[0009] Preferably, the first step forming block and the second step forming block have the same thickness, and the transition surface between the first step forming block and the second step forming block adopts an arc-shaped transition.

[0010] Preferably, the convertible groove forms a structure that matches the corresponding part of the mobile phone case according to different combinations of the first molding component and the second molding component in the convertible core.

[0011] Preferably, the guiding mechanism includes a guide post fixed to the top of the lower mold base and a guide sleeve fixed to the bottom of the upper mold base. The guide post and the guide sleeve are slidably engaged to ensure accurate guidance of the lower mold base and the upper mold base during mold closing and opening.

[0012] Preferably, the upper mold base is provided with cooling water channels inside, the cooling water channels are distributed in a serpentine shape and are connected to an external cooling water source, for rapidly cooling the injection-molded mobile phone casing.

[0013] Preferably, the top of the upper mold base is provided with a positioning boss that connects to the injection molding machine to ensure accurate docking between the injection molding machine and the mold.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model achieves high compatibility with the injection molding requirements of different mobile phone case models through the design of a changeable core and a changeable groove. During use, only the structure of the changeable core and changeable groove needs to be adjusted to quickly adapt to different mobile phone case models, greatly saving mold manufacturing costs and production cycle.

[0016] 2. This utility model features a detachable connection between the first and second molding components via a connecting structure, making mold changes more flexible and convenient. Furthermore, the design of the first and second molding components takes into account the structural characteristics of different parts of the phone case, such as camera holes and fill light holes, allowing the mold to better adapt to the complex structure of the phone case. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the injection molding cavity of this utility model;

[0019] Figure 3 This is a schematic diagram of a partial internal structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the interior of this utility model from another perspective;

[0021] Figure 5 This is a schematic diagram of the convertible core structure of this utility model;

[0022] Figure 6 This is an exploded view of the interchangeable core of this utility model;

[0023] Figure 7 This is a schematic diagram showing the connection between the changeable core and the lower template of this utility model.

[0024] In the diagram: 1. Lower mold base; 2. Upper mold base; 3. Upper mold plate; 4. Lower mold plate; 5. Injection cavity; 6. Convertible core; 7. Hot runner nozzle; 8. Guide mechanism; 9. First molding component; 10. Second molding component; 11. First step molding block; 12. First camera hole molding block; 13. Second camera hole molding block; 14. Fill light hole molding block; 15. Second step molding block; 16. Third camera hole molding block; 17. Pin; 18. Insertion hole; 19. Guide sleeve; 20. Cooling water channel; 21. Positioning boss; 22. Connecting block; 23. Connecting groove; 24. Connecting post. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-7This utility model provides a highly compatible precision injection mold solution for mobile phone cases: it includes a lower mold base 1 and an upper mold base 2. A lower template 4 is fixedly connected to the top of the lower mold base 1, and an upper template 3 is fixedly connected to the bottom of the upper mold base 2. An injection cavity 5 is formed between the lower template 4 and the upper template 3. Several variable cores 6 are provided on the top of the lower template 4, and several variable grooves are correspondingly provided on the bottom of the upper template 3. The positions of the variable cores 6 and the variable grooves correspond to each other. By changing the structure of the variable cores 6 and the variable grooves, the position and size can be adjusted to adapt to the injection molding requirements of different models of mobile phone cases.

[0027] Please refer to Figure 7 In this design, a connecting block 22 can be fixedly installed at the bottom of the convertible core 6. A connecting groove 23 is provided on the lower template 4 for connecting and engaging with the connecting block 22. A connecting post 24 extends through the side of the lower template 4 into the connecting groove 23 and is inserted into the connecting block 22. The connecting post 24 can be a screw or a pin.

[0028] A hot runner nozzle 7 is connected to the injection cavity 5. The hot runner nozzle 7 is connected to the discharge port of the injection molding machine and is used to inject molten plastic evenly into the injection cavity 5. A guide mechanism 8 is also provided between the lower mold base 1 and the upper mold base 2 to ensure the accuracy of mold closing.

[0029] Combination Figure 5 As shown, the convertible core 6 includes a first molding component 9 and a second molding component 10. The first molding component 9 and the second molding component 10 are detachably connected by a connecting structure. The first molding component 9 includes a first step molding block 11, a first camera hole molding block 12, a second camera hole molding block 13, and a fill light hole molding block 14. The first camera hole molding block 12, the second camera hole molding block 13, and the fill light hole molding block 14 are located on one side of the first step molding block 11. The second molding component 10 includes a second step molding block 15 and a third camera hole molding block 16. The third camera hole molding block 16 is fixedly installed on the second step molding block 15.

[0030] The detachable connection between the first molding component 9 and the second molding component 10 allows for flexible selection and replacement of the corresponding molding components based on the position and number of the camera and fill light on different phone models, thus greatly improving the compatibility and flexibility of the mold. The design of the first step molding block 11 and the second step molding block 15 corresponds to different parts of the phone case, ensuring that the injection-molded phone case has precise dimensions and shape.

[0031] Combination Figure 6As shown, the connection structure includes a pin 17 and a socket 18. The pin 17 is fixedly installed on one side of the second step forming block 15, and the socket 18 is opened on one side of the first step forming block 11, and its position is opposite to that of the pin 17. The cooperation between the pin 17 and the socket 18 makes the connection between the first forming component 9 and the second forming component 10 both stable and easy to disassemble. The two forming components can be easily separated simply by pulling the pin 17 out of the socket 18.

[0032] It should also be noted that, preferably, the connecting block 22 is set at the bottom of the first forming component 9, the bottom of the second forming component 10 is provided with a fixing post, and the lower template 4 is provided with fixing holes for fixed connection with the fixing post.

[0033] When the first molding component 9 and the second molding component 10 are connected through the insertion hole 18 via the pin 17, the first molding component 9 is fixedly connected to the lower template 4 via the connecting block 22, and the second molding component 10 is connected to the fixing hole via the fixing post, so that the first molding component 9 and the second molding component 10 can be stably fitted and connected to the lower template 4.

[0034] When only the first forming component 9 is used, a plug can be inserted into the fixing hole, and the outer surface of the plug is flush with the surface of the lower template 4.

[0035] Combination Figure 6 As shown, the first step molding block 11 and the second step molding block 15 have the same thickness, and the transition surface of the first step molding block 11 and the second step molding block 15 adopts an arc transition. The convertible groove forms a structure that matches the corresponding part of the mobile phone case according to the different combination methods of the first molding component 9 and the second molding component 10 in the convertible core 6. The convertible groove makes full use of the detachable connection characteristics of the first molding component 9 and the second molding component 10. Through different combination methods, it can accurately match the camera and fill light positions of various mobile phone models, ensuring that the injection-molded mobile phone case has high precision and adaptability in these key parts.

[0036] Combination Figure 3 As shown, the guiding mechanism 8 includes a guide post fixed to the top of the lower mold base 1 and a guide sleeve 19 fixed to the bottom of the upper mold base 2. The guide post and the guide sleeve 19 are slidably engaged to ensure accurate guidance of the lower mold base 1 and the upper mold base 2 during the mold closing and opening process. This not only enhances the stability of the mold during the mold closing and opening process, but also effectively reduces the wear of the mold and extends the service life of the mold.

[0037] Combination Figure 1As shown, the upper mold base 2 is provided with cooling water channels 20. The cooling water channels 20 are distributed in a serpentine shape and are connected to an external cooling water source. They are used to quickly cool the injection-molded mobile phone shell, which improves the cooling efficiency and ensures that the mobile phone shell can cool down quickly after injection molding, effectively shortening the production cycle. At the same time, it also helps to reduce deformation or internal stress caused by uneven cooling.

[0038] Combination Figure 3 As shown, the top of the upper mold base 2 is provided with a positioning boss 21 that connects to the injection molding machine to ensure accurate docking between the injection molding machine and the mold.

[0039] Working Principle: During use, the operator first selects and assembles the appropriate convertible core 6 according to the specific structure and size of the phone case. Specifically, the operator can select the corresponding first molding component 9 and second molding component 10 based on the position and number of the camera hole and fill light hole on the phone case. These are detachably connected via the connection structure of the pin 17 and the insertion hole 18, forming a structure that matches the corresponding parts of the phone case. Then, the assembled convertible core 6 is installed on the lower mold plate 4, ensuring that the positions of the convertible core 6 and the convertible groove correspond. Next, molten plastic is injected into the hot runner nozzle 7 through the injection molding machine's outlet. The hot runner nozzle 7 evenly injects the molten plastic into the injection cavity 5. During the injection molding process, the guide mechanism 8 ensures precise mold closing between the lower mold base 1 and the upper mold base 2, guaranteeing the accuracy and stability of the injection cavity 5. After injection molding, the cooling water channel 20 rapidly cools the injection-molded phone case, improving production efficiency and product quality. Finally, the operator separates the lower mold base 1 and the upper mold base 2 using the mold opening mechanism and removes the injection-molded phone case. Because the mold's interchangeable core 6 and interchangeable groove are highly flexible and adjustable, it can adapt to the injection molding needs of different phone case models, greatly improving the mold's compatibility and practicality.

[0040] 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.

[0041] 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 highly compatible precision injection mold for mobile phone cases, comprising a lower mold base (1) and an upper mold base (2), characterized in that: The lower mold base (1) is fixedly connected to the top of the lower mold plate (4), and the upper mold base (2) is fixedly connected to the bottom of the upper mold plate (3). An injection cavity (5) is formed between the lower mold plate (4) and the upper mold plate (3). The top of the lower mold plate (4) is provided with several variable cores (6), and the bottom of the upper mold plate (3) is provided with several variable grooves. The positions of the variable cores (6) and the variable grooves correspond to each other. By changing the structure of the variable cores (6) and the variable grooves, the position and size can be adjusted to meet the injection molding requirements of different models of mobile phone cases. 6) A connecting block (22) is fixedly provided at the bottom. A connecting groove (23) is provided on the lower mold plate (4) for connecting and cooperating with the connecting block (22). A connecting post (24) extends through the side of the lower mold plate (4) into the connecting groove (23). The connecting post (24) is inserted into the connecting block (22). A hot runner nozzle (7) is connected to the injection cavity (5). The hot runner nozzle (7) is connected to the outlet of the injection molding machine and is used to uniformly inject molten plastic into the injection cavity (5). A guide mechanism (8) is also provided between the lower mold base (1) and the upper mold base (2).

2. The high-compatibility precision injection mold for mobile phone cases according to claim 1, characterized in that, The convertible core (6) includes a first molding component (9) and a second molding component (10), which are detachably connected by a connection structure.

3. The highly compatible precision injection mold for mobile phone cases according to claim 2, characterized in that, The first molding component (9) includes a first step molding block (11), a first camera hole molding block (12), a second camera hole molding block (13), and a fill light hole molding block (14). The first camera hole molding block (12), the second camera hole molding block (13), and the fill light hole molding block (14) are located on one side of the first step molding block (11).

4. The high-compatibility precision injection mold for mobile phone cases according to claim 3, characterized in that, The second molding component (10) includes a second step molding block (15) and a third camera hole molding block (16), wherein the third camera hole molding block (16) is fixedly installed on the second step molding block (15).

5. The highly compatible precision injection mold for mobile phone cases according to claim 4, characterized in that, The connection structure includes a pin (17) and a socket (18). The pin (17) is fixedly installed on one side of the second step forming block (15), and the socket (18) is opened on one side of the first step forming block (11) and is positioned opposite to the pin (17).

6. The highly compatible precision injection mold for mobile phone cases according to claim 3, characterized in that, The first step forming block (11) and the second step forming block (15) have the same thickness, and the transition surface of the first step forming block (11) and the second step forming block (15) adopts an arc-shaped transition.

7. The highly compatible precision injection mold for mobile phone cases according to claim 3, characterized in that, The convertible groove forms a structure that matches the corresponding part of the mobile phone case according to the different combination of the first molding component (9) and the second molding component (10) in the convertible core (6).

8. The high-compatibility precision injection mold for mobile phone cases according to claim 1, characterized in that, The guiding mechanism (8) includes a guide post fixed to the top of the lower mold base (1) and a guide sleeve (19) fixed to the bottom of the upper mold base (2). The guide post and the guide sleeve (19) are slidably engaged to ensure accurate guidance of the lower mold base (1) and the upper mold base (2) during the mold closing and opening process.

9. The high-compatibility precision injection mold for mobile phone cases according to claim 1, characterized in that, The upper mold base (2) is provided with cooling water channels (20), which are distributed in a serpentine shape and connected to an external cooling water source for rapid cooling of the injection-molded mobile phone shell.

10. The highly compatible precision injection mold for mobile phone cases according to claim 1, characterized in that, The top of the upper mold base (2) is provided with a positioning boss (21) that is connected to the injection molding machine to ensure accurate docking between the injection molding machine and the mold.

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