Texture transfer printing device for rear cover of mobile phone

By designing a texture transfer device that includes a processing table, an upper mold assembly, a transfer mold assembly, and a lower mold assembly, the problem of the phone back cover getting stuck in the groove of the lower mold assembly was solved by using a telescopic rod and guide rod structure, thus improving transfer efficiency and ensuring texture transfer quality.

CN223972302UActive Publication Date: 2026-03-06DONGGUAN HUACAI OPTICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

The existing mobile phone back cover is prone to getting stuck in the groove of the lower mold component after the transfer, resulting in low transfer efficiency.

Method used

A texture transfer device is designed, comprising a processing table, an upper mold assembly, a transfer mold assembly, and a lower mold assembly. A telescopic rod is used to drive the bottom plate inside the groove to move upward. The bottom plate inside the groove drives the back cover of the mobile phone to move upward through a hydraulic lifting structure for easy removal. Combined with the sliding connection structure of the guide rod and the spring strip, it prevents foreign objects from falling in and affecting the transfer.

Benefits of technology

It enables convenient removal of the phone back cover, improves transfer efficiency, and avoids debris affecting the quality of texture transfer.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223972302U_ABST
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Abstract

The utility model discloses a texture transfer printing device for a rear cover of a mobile phone, and aims to solve the technical problem of low transfer printing efficiency of the rear cover of the mobile phone due to the fact that the rear cover of the mobile phone is clamped in a groove of a lower die assembly and is difficult to take out after being subjected to transfer printing in the prior art. The transfer printing device comprises a machining table, an upper mold assembly, a transfer printing mold assembly and a lower mold assembly, the upper mold assembly is installed on the upper surface of the machining table, the transfer printing mold assembly is installed on the upper surface of the machining table, the lower mold assembly is arranged on the upper surface of the machining table, and the upper surface of the machining table is connected with a guide rail. According to the transfer printing device, a telescopic rod can be operated after texture transfer printing is finished, the telescopic rod can drive a bottom plate in a groove to move upwards during operation, the bottom plate in the groove moves upwards to drive a first guide rod to slide in a first guide round hole, and meanwhile the bottom plate in the groove moves upwards to drive and extrude a mobile phone rear cover to move upwards; in this way, the rear cover of the mobile phone can be ejected out, so that the rear cover of the mobile phone can be conveniently taken.
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Description

Technical Field

[0001] This utility model belongs to the field of texture transfer technology, specifically relating to a texture transfer device for a mobile phone back cover. Background Technology

[0002] The back cover of a mobile phone is an important component, not only protecting the internal components but also contributing to its aesthetics and personalization. With technological advancements, the materials and manufacturing processes for mobile phone back covers are constantly improving, among which texture transfer printing is a commonly used decorative technique.

[0003] The texture transfer device for mobile phone back covers is mainly used to create various texture effects on the surface of the mobile phone back cover to meet consumers' personalized needs for the appearance of the mobile phone. The texture transfer device for mobile phone back covers is a comprehensive system involving multiple technologies and processes. It is mainly used to create various textures and patterns on the surface of the mobile phone back cover to enhance the appearance and uniqueness of the product.

[0004] The existing transfer devices have the following problems during use:

[0005] Currently, the back cover of a mobile phone is first die-cast using an upper mold and a lower mold, and then the phone case inside the lower mold is processed using a transfer mold. However, in the use of the existing device, the back cover gets stuck in the groove of the lower mold component after the transfer is completed, making it difficult to remove, which results in low transfer efficiency of the back cover. Utility Model Content

[0006] (1) Technical problems to be solved

[0007] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a texture transfer device for mobile phone back covers. This transfer device aims to solve the technical problem that, under the prior art, the mobile phone back cover gets stuck in the groove of the lower mold assembly after the transfer is performed and is difficult to remove, resulting in low transfer efficiency of the mobile phone back cover.

[0008] (2) Technical solution

[0009] To solve the above-mentioned technical problems, this utility model provides a texture transfer device for mobile phone back covers. The transfer device includes a processing table, an upper mold assembly, a transfer mold assembly, and a lower mold assembly. The upper mold assembly is installed on the upper surface of the processing table, the transfer mold assembly is installed on the upper surface of the processing table, the lower mold assembly is provided on the upper surface of the processing table, a guide rail is connected to the upper surface of the processing table, a sliding sleeve is connected to the surface of the guide rail, the sliding sleeve is connected to the lower surface of the lower mold assembly, a moving block is connected to the lower surface of the lower mold assembly, a threaded rod passes through the interior of the moving block, and a drive motor is connected to the end of the threaded rod.

[0010] The inner side of the lower mold assembly is provided with a groove bottom plate. A telescopic rod is installed between the bottom side of the groove bottom plate and the inner wall of the lower mold assembly. A first guide rod is connected to the lower surface of the groove bottom plate. A first guide hole is opened on the inner side of the lower mold assembly near the first guide rod. A limit block is connected to the bottom of the first guide rod.

[0011] When using the transfer device of this technical solution, the telescopic rod can be operated after the texture transfer is completed. When the telescopic rod is running, it can drive the bottom plate in the groove to move upward. The upward movement of the bottom plate in the groove can drive the squeezing back cover of the mobile phone to move upward, so as to push the back cover of the mobile phone out.

[0012] Preferably, the bottom plate inside the groove and the telescopic rod form a hydraulic lifting structure. When the telescopic rod is running, it can drive the bottom plate inside the groove to move upward. The upward movement of the bottom plate inside the groove can drive the squeezing phone back cover to move upward.

[0013] Furthermore, the first guide rod and the limiting block are an integral structure. The first guide rod and the limiting block are symmetrically arranged on both sides of the bottom plate in the groove. The first guide rod is slidably connected to the lower mold assembly through the first guide hole. When the bottom plate in the groove moves upward, it can drive the first guide rod to slide inside the first guide hole, which can limit the movement direction of the bottom plate in the groove.

[0014] Furthermore, a protective cover is inserted into the surface of the lower mold assembly, and a second guide hole is opened on the surface of the protective cover. A second guide rod passes through the interior of the second guide hole and is connected to the side surface of the lower mold assembly. A spring strip is connected between the protective cover and the lower mold assembly, and the spring strip is sleeved on the surface of the second guide rod.

[0015] Furthermore, the protective cover is slidably connected to the second guide rod through the second guide hole. When the protective cover is subjected to force, it can drive the second guide hole to slide on the surface of the second guide rod, which can restrict the movement direction of the protective cover.

[0016] Furthermore, the protective cover and the spring strip form an elastic telescopic structure.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. In this utility model, after the texture transfer is completed, a telescopic rod can be operated. When the telescopic rod is running, it can drive the bottom plate inside the groove to move upward. The upward movement of the bottom plate inside the groove can drive the first guide rod to slide inside the first guide hole. At the same time, the upward movement of the bottom plate inside the groove can drive the extruded mobile phone back cover to move upward, so that the mobile phone back cover can be pushed out, thereby facilitating the removal of the mobile phone back cover.

[0020] 2. In this utility model, when the transfer mold moves downward to the surface of the protective cover, the continued downward movement of the transfer mold can squeeze the protective cover downward. The downward movement of the protective cover can drive the second guide hole to slide on the surface of the second guide rod and compress the spring strip until the transfer mold moves downward and completes the texture transfer on the collection back cover. This can protect the mobile phone back cover in the lower mold assembly groove and prevent debris from falling into the surface of the mobile phone back cover and affecting the texture transfer. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of one specific embodiment of the device of this utility model;

[0022] Figure 2 This is a cross-sectional view of the main structure of one specific embodiment of the device of this utility model;

[0023] Figure 3 This is a schematic diagram of the lower mold assembly structure of one specific embodiment of the device of this utility model;

[0024] Figure 4 This is a cross-sectional view of the lower mold assembly structure of a specific embodiment of the device of this utility model;

[0025] Figure 5 An exploded view of the internal structure of the lower mold assembly according to a specific embodiment of the present invention.

[0026] Figure 6 A cross-sectional view of the lower mold assembly and protective cover according to a specific embodiment of the device of this utility model;

[0027] Figure 7 This is an exploded view of the lower mold assembly and protective cover of a specific embodiment of the device of this utility model.

[0028] The labels in the attached diagram are as follows: 1. Processing table; 2. Upper mold assembly; 3. Transfer mold assembly; 4. Lower mold assembly; 5. Guide rail; 6. Sliding sleeve; 7. Moving block; 8. Threaded rod; 9. Drive motor; 10. Inner groove bottom plate; 11. Telescopic rod; 12. First guide rod; 13. First guide hole; 14. Limiting block; 15. Protective cover; 16. Second guide hole; 17. Second guide rod; 18. Spring strip. Detailed Implementation

[0029] This specific embodiment is a texture transfer device for a mobile phone back cover, and its structural schematic diagram is shown below. Figure 1-7As shown, the transfer device includes a processing table 1, an upper mold assembly 2, a transfer mold assembly 3, and a lower mold assembly 4. The upper mold assembly 2 is installed on the upper surface of the processing table 1, the transfer mold assembly 3 is installed on the upper surface of the processing table 1, the lower mold assembly 4 is provided on the upper surface of the processing table 1, a guide rail 5 is connected to the upper surface of the processing table 1, a sliding sleeve 6 is connected to the surface of the guide rail 5, the sliding sleeve 6 is connected to the lower surface of the lower mold assembly 4, a moving block 7 is connected to the lower surface of the lower mold assembly 4, a threaded rod 8 passes through the interior of the moving block 7, and a drive motor 9 is connected to the end of the threaded rod 8.

[0030] The inner side of the lower mold assembly 4 is provided with a groove bottom plate 10. A telescopic rod 11 is installed between the bottom side of the groove bottom plate 10 and the inner wall of the lower mold assembly 4. A first guide rod 12 is connected to the lower surface of the groove bottom plate 10. A first guide hole 13 is opened on the inner side of the lower mold assembly 4 near the first guide rod 12. A limit block 14 is connected to the bottom of the first guide rod 12.

[0031] The bottom plate 10 in the groove and the telescopic rod 11 form a hydraulic lifting structure. The first guide rod 12 and the limiting block 14 are an integral structure. The first guide rod 12 and the limiting block 14 are symmetrically arranged on both sides of the bottom plate 10 in the groove. The first guide rod 12 is slidably connected to the lower mold assembly 4 through the first guide hole 13.

[0032] In addition, a protective cover 15 is inserted into the surface of the lower mold assembly 4. A second guide hole 16 is opened on the surface of the protective cover 15. A second guide rod 17 passes through the interior of the second guide hole 16. The second guide rod 17 is connected to the side surface of the lower mold assembly 4. A spring strip 18 is connected between the protective cover 15 and the lower mold assembly 4. The spring strip 18 is sleeved on the surface of the second guide rod 17. The protective cover 15 and the second guide rod 17 are slidably connected through the second guide hole 16. The protective cover 15 and the spring strip 18 form an elastic telescopic structure.

[0033] Working principle: When using the device of this technical solution, the back cover of the mobile phone is first die-cast by the upper mold assembly 2 and the lower mold assembly 4. Then, the drive motor 9 can be controlled to run. When the drive motor 9 runs, it can drive the threaded rod 8 to rotate. The rotation of the threaded rod 8 can drive the moving block 7 to move laterally. The lateral movement of the moving block 7 can drive the lower mold assembly 4 to move laterally. When the lower mold assembly 4 moves laterally to the bottom of the transfer mold assembly 3, the transfer mold assembly 3 can transfer the texture of the back cover of the mobile phone. During this process, the transfer mold of the transfer mold assembly 3 will move downward. When the transfer mold moves downward to the surface of the protective cover 15, the transfer mold continues to move downward and can squeeze the protective cover 15 to move downward. The downward movement of the protective cover 15 can drive the second guide hole 16 to slide on the surface of the second guide rod 17 and compress the spring strip 18 until the transfer mold moves downward and completes the texture transfer of the back cover.

[0034] After the texture transfer is completed, the telescopic rod 11 can be operated. When the telescopic rod 11 is running, it can drive the bottom plate 10 in the groove to move upward. The upward movement of the bottom plate 10 in the groove can drive the first guide rod 12 to slide inside the first guide hole 13. At the same time, the upward movement of the bottom plate 10 in the groove can drive the squeezing back cover of the mobile phone to move upward, so that the back cover of the mobile phone can be pushed out.

[0035] All technical features in this embodiment can be freely combined according to actual needs.

[0036] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A texture transfer printing device for mobile phone back cover, the transfer printing device comprising a processing table (1), an upper die assembly (2), a transfer die assembly (3) and a lower die assembly (4), characterized in that, The upper surface of the processing table (1) is provided with an upper mold assembly (2), the upper surface of the processing table (1) is provided with a transfer mold assembly (3), the upper surface of the processing table (1) is provided with a lower mold assembly (4), the upper surface of the processing table (1) is connected with a guide rail (5), the surface of the guide rail (5) is connected with a sliding sleeve (6), the sliding sleeve (6) is connected to the lower surface of the lower mold assembly (4), the lower surface of the lower mold assembly (4) is connected with a moving block (7), the inside of the moving block (7) penetrates a threaded rod (8), and the end of the threaded rod (8) is connected with a driving motor (9). The inner side of the lower mold assembly (4) is provided with a groove bottom plate (10), the bottom side of the groove bottom plate (10) and the inner wall of the lower mold assembly (4) are provided with a telescopic rod (11), the lower surface of the groove bottom plate (10) is connected with a first guide rod (12), the inner side of the lower mold assembly (4) is provided with a first guide circular hole (13) close to the first guide rod (12), and the bottom of the first guide rod (12) is connected with a limiting block (14).

2. A texture transfer device for a mobile phone rear cover according to claim 1, characterized in that, The groove bottom plate (10) and the telescopic rod (11) constitute a hydraulic lifting structure.

3. A texture transfer device for a mobile phone rear cover according to claim 2, wherein, The first guide rod (12) and the limiting block (14) are in an integral structure, and the first guide rod (12) and the limiting block (14) are symmetrically arranged on both sides of the groove bottom plate (10).

4. A texture transfer device for a mobile phone rear cover according to claim 3, wherein, The first guide rod (12) is in sliding connection between the first guide circular hole (13) and the lower mold assembly (4).

5. A texture transfer device for a mobile phone rear cover according to claim 1, wherein, The surface of the lower mold assembly (4) is inserted with a protective cover (15), the surface of the protective cover (15) is provided with a second guide circular hole (16), the inside of the second guide circular hole (16) penetrates a second guide rod (17), the second guide rod (17) is connected to the side surface of the lower mold assembly (4), the protective cover (15) and the lower mold assembly (4) are connected with a spring strip (18), and the spring strip (18) is sleeved on the surface of the second guide rod (17).

6. A texture transfer device for a mobile phone rear cover according to claim 5, wherein, The protective cover (15) and the second guide rod (17) constitute sliding connection through the second guide circular hole (16).

7. A texture transfer device for a mobile phone rear cover according to claim 5, wherein, The protective cover (15) and the spring strip (18) constitute an elastic expansion structure.