Equipment for laser etching characters on two sides of mobile phone card holder

The design of the ball and pressing post simplifies the disassembly of the laser engraving head. Combined with the rubber disc and arc-shaped clamp to fix the card tray, it solves the problems of time-consuming laser engraving head replacement and card tray position misalignment, thus improving portability and stability.

CN224143744UActive Publication Date: 2026-04-21DONGGUAN GUANGZHI PRECISION COMPONENTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN GUANGZHI PRECISION COMPONENTS CO LTD
Filing Date
2025-04-25
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing mobile phone SIM card tray double-sided laser engraving equipment requires the use of specific tools to remove bolts during the laser engraving head replacement process. This operation is cumbersome and time-consuming, and the vibration of the equipment can cause the SIM card tray to shift position, affecting the laser engraving effect.

Method used

The design of the ball and pressing post simplifies the disassembly process of the laser engraving head, and the spring provides restoring force to ensure a stable installation; the card holder is fixed by a rubber disc and an arc-shaped clamp to absorb vibration and ensure stable position.

Benefits of technology

The process of changing the laser engraving head has been simplified, improving portability and enhancing the stability of the tray during the laser engraving process, thus preventing positional shifts from affecting the laser engraving effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224143744U_ABST
    Figure CN224143744U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of laser carving machines, and discloses a mobile phone card holder double-face laser carving character device which comprises a supporting frame, the top of the supporting frame is fixedly connected with a control machine and a sliding seat, the bottom of the sliding seat is fixedly connected with a machine box, a laser carving head is arranged at the bottom of the machine box, and a replacement assembly is arranged on the outer wall of the laser carving head. The top of the supporting frame is fixedly connected with a workbench, a stabilizing assembly is arranged at the top of the workbench, the replacing assembly comprises a plurality of clamping balls, the clamping balls are located on the outer wall of the laser carving head, the two sides of the laser carving head are fixedly connected with first connecting plates, and the interior of each first connecting plate is fixedly connected with a connecting shell; the clamping balls are slidably connected to the interiors of the connecting shells, and the bottom of each connecting shell is fixedly connected with a supporting block. According to the laser carving head, the clamping ball is clamped with the inclined surface of the inner wall of the fixing shell by pushing the pressing column, so that the effect of mounting and dismounting the laser carving head is achieved, and the replacement portability of the laser carving head is enhanced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of laser engraving machine technology, and in particular to a device for laser engraving characters on both sides of a mobile phone SIM card tray. Background Technology

[0002] In today's era of widespread smartphone adoption, the SIM card tray, as an indispensable component of mobile phones, not only serves as an identifier but also reflects the product's quality and brand image through its laser-engraved characters. With continuous improvements in mobile phone manufacturing processes and increasing consumer demands for refined phone aesthetics, higher standards are being set for the precision and efficiency of double-sided laser engraving on SIM card trays.

[0003] Currently, most equipment on the market for laser engraving characters on both sides of mobile phone SIM card trays uses a relatively traditional mechanical structure. It typically fixes the SIM card tray to a specific worktable, and a laser engraving head performs the engraving operation on the surface of the tray. The laser engraving head is mounted on a movable robotic arm, which is driven by a motor to move along different coordinate axes, thereby achieving engraving at different positions on the SIM card tray. The technical principle mainly utilizes a high-energy-density laser beam to instantly generate high temperatures on the surface of the SIM card tray, causing the material surface to vaporize and thus forming the preset characters or patterns.

[0004] However, existing equipment has certain drawbacks in the laser engraving head replacement process. Currently, replacing the laser engraving head requires the use of specific tools to remove the bolts on the surface of the laser engraving head. This process often requires operators to have certain skills and experience, and the operation steps are cumbersome and time-consuming. Therefore, a device for laser engraving characters on both sides of a mobile phone SIM card tray is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a device for laser engraving characters on both sides of a mobile phone SIM card tray, which aims to improve the problem that when replacing the laser engraving head, it is necessary to use a special tool to disassemble the bolts on the surface of the laser engraving head, which easily leads to a long time consumption.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for laser engraving characters on both sides of a SIM card tray includes a support frame, a control unit and a slide are fixedly connected to the top of the support frame, a housing is fixedly connected to the bottom of the slide, a laser engraving head is provided at the bottom of the housing, a replacement component is provided on the outer wall of the laser engraving head, a worktable is fixedly connected to the top of the support frame, and a stabilizing component is provided on the top of the worktable.

[0008] The replacement component includes multiple retaining balls located on the outer wall of the laser engraving head. Connecting plates are fixedly connected to both sides of the laser engraving head. Each connecting plate has a connecting shell fixedly connected inside. The retaining balls are slidably connected inside the connecting shells. A support block is fixedly connected to the bottom of each connecting shell. A pressing post is slidably connected inside each support block. A frustum-shaped retaining block is fixedly connected to one end of each pressing post. The frustum-shaped retaining block and the retaining balls are in contact. A fixing shell is provided on the outer wall of each connecting shell. A fixing block is fixedly connected to the outer wall of each fixing shell. The outer walls of the fixing blocks are fixedly connected to both sides of the chassis.

[0009] As a further description of the above technical solution:

[0010] Each of the pressing columns is provided with a spring on its outer wall. One end of each spring is fixedly connected to a connecting ring. The inner wall of the connecting ring is fixedly connected to the outer wall of the pressing column. The other end of each spring is fixedly connected to the outer wall of the support block.

[0011] As a further description of the above technical solution:

[0012] The stabilizing component includes a template located on top of the workbench. The template has multiple slots inside and multiple fixing brackets are fixedly connected to the top of the template. Each fixing bracket has a rotating shaft fixedly connected inside.

[0013] As a further description of the above technical solution:

[0014] Each of the rotating shafts is rotatably connected to a second connecting plate on its outer wall, and each of the second connecting plates is fixedly connected to a fixed post at its bottom. Each fixed post is slidably connected to a rubber disc inside its interior.

[0015] As a further description of the above technical solution:

[0016] Each of the fixed columns is equipped with a second spring inside. One end of each second spring is fixedly connected to the outer wall of the rubber disc, and the other end of each second spring is fixedly connected to the inner wall of the fixed column.

[0017] As a further description of the above technical solution:

[0018] Each of the connecting plates has a connecting post fixedly connected to one side, and each connecting post has an arc-shaped clamp on both sides.

[0019] As a further description of the above technical solution:

[0020] Each of the arc-shaped clamps is rotatably connected to a second fixing frame, the bottom of which is fixedly connected to the top of the template.

[0021] As a further description of the above technical solution:

[0022] Each of the two fixing frames is provided with a spring three on its inner wall. One end of the spring three is fixedly connected to the outer wall of the arc-shaped clamp, and the other end of the spring three is fixedly connected to the inner wall of the two fixing frames.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by pushing the pressing column, the locking ball is engaged with the inclined surface of the inner wall of the fixing shell, thereby achieving the effect of installing and removing the laser engraving head. This solves the problem that when replacing the laser engraving head, it is necessary to use a special tool to remove the bolts on the surface of the laser engraving head, which is time-consuming. This enhances the portability of laser engraving head replacement.

[0025] 2. In this utility model, the card slot limits the side wall of the mobile phone card tray, while the rubber disc squeezes and fixes the mobile phone card tray. The vibration during the laser engraving process of the mobile phone card tray is absorbed by the second spring. Then, the engagement between the connecting column and the arc-shaped clamping plate fixes the position of the rubber disc, achieving the effect of limiting and fixing the mobile phone card tray. This solves the problem that the position of the mobile phone card tray is easily shifted due to equipment vibration during the laser engraving process, which affects the subsequent laser engraving effect and enhances the stability of the mobile phone card tray during the laser engraving process. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the device for laser engraving characters on both sides of a mobile phone SIM card tray according to the present invention;

[0027] Figure 2 for Figure 1 Enlarged view of point A in the image;

[0028] Figure 3 This is a schematic diagram of the frustum-shaped card block of the device for laser-engraving characters on both sides of a mobile phone card tray according to the present invention.

[0029] Figure 4 This is a schematic diagram of the template structure of the device for laser engraving characters on both sides of a mobile phone SIM card tray according to the present invention;

[0030] Figure 5 A schematic diagram of the rubber disc structure of the device for laser-engraving characters on both sides of a mobile phone SIM card tray according to this utility model;

[0031] Figure 6 This is a schematic diagram of the arc-shaped clamping plate structure of the device for laser-engraving characters on both sides of a mobile phone SIM card tray according to this utility model.

[0032] Legend:

[0033] 1. Support frame; 2. Control unit; 3. Slide; 4. Worktable; 5. Chassis; 6. Laser engraving head; 7. Fixing block; 8. Connecting plate one; 9. Support block; 10. Pressing column; 11. Connecting shell; 12. Spring one; 13. Connecting ring; 14. Ball clamp; 15. Frustum clamping block; 16. Fixing shell; 17. Template; 18. Slot; 19. Fixing frame one; 20. Rotating shaft; 21. Rubber disc; 22. Connecting plate two; 23. Fixing column; 24. Spring two; 25. Connecting column; 26. Arc-shaped clamp; 27. Spring three; 28. Fixing frame two. Detailed Implementation

[0034] 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.

[0035] Reference Figures 1-3 The present invention provides an embodiment of a device for laser engraving characters on both sides of a mobile phone card holder, comprising a support frame 1, a control unit 2 and a slide 3 fixedly connected to the top of the support frame 1, a housing 5 fixedly connected to the bottom of the slide 3, a laser engraving head 6 provided at the bottom of the housing 5, a replacement component provided on the outer wall of the laser engraving head 6, a worktable 4 fixedly connected to the top of the support frame 1, and a stabilizing component provided on the top of the worktable 4.

[0036] The replacement components include multiple retaining balls 14 located on the outer wall of the laser engraving head 6. The main function of the retaining balls 14 is to provide a sliding connection with the connecting shell 11, ensuring smooth disassembly and installation of the laser engraving head 6. Connecting plates 8 are fixedly connected to both sides of the laser engraving head 6, and each connecting plate 8 has a connecting shell 11 fixedly connected inside. The connecting shell 11 accommodates the retaining balls 14 and enables their sliding function. The retaining balls 14 are slidably connected inside the connecting shell 11. This design allows the laser engraving head 6 to move flexibly during replacement, simplifying the overall replacement process. A support block 9 is fixedly connected to the bottom of each connecting shell 11. The main function of the support block 9 is to provide stable support, ensuring that the position of the connecting shell 11 does not shift during use. A pressing post 10 is slidably connected inside each support block 9. The pressing post 10 provides the necessary mechanical force to push the movement of other components during operation. Each pressing column 10 is fixedly connected to a frustum-shaped locking block 15 at one end. The frustum-shaped locking block 15 fits snugly against the locking ball 14, forming a firm connection and enhancing the stability of the overall structure. Each connecting shell 11 has a fixing shell 16 on its outer wall. The fixing shell 16 secures the entire replacement assembly within the housing 5, preventing loosening of components during operation. Each fixing shell 16 has a fixing block 7 fixedly connected to its outer wall, which is fixedly connected to both sides of the housing 5, providing additional support and stability to the entire structure. This design ensures the reliability and safety of the equipment during operation. Each pressing column 10 has a spring 12 on its outer wall. The main function of the spring 12 is to provide restoring force to the pressing column 10, ensuring rapid reset after operation. Each spring 12 has a connecting ring 13 fixedly connected to one end. The inner wall of the connecting ring 13 is fixedly connected to the outer wall of the pressing column 10 to enhance the stability of the connection. The other end of each spring 12 is fixedly connected to the outer wall of the support block 9.

[0037] Specifically, during the disassembly and replacement of the laser engraving head 6, first hold the support block 9 to ensure hand stability and control. Then, push the pressing column 10 upwards. This action causes the frustum-shaped locking block 15 to move out of the outer wall of the locking ball 14, providing the necessary space for the locking ball 14 to move. During the movement of the pressing column 10, the connecting ring 13 pulls the spring 12, creating a stretching effect. This structural design not only effectively reduces the resistance during disassembly but also ensures the smooth movement of each component. Next, pull the support block 9 downwards, causing the connecting shell 11 to gradually move out of the inner wall of the fixed shell 16. This operation is like unlocking a lock, allowing the laser engraving head 6 to be easily disassembled, avoiding damage to the equipment during disassembly. Once the laser engraving head 6 is removed, another laser engraving head 6 is moved back to the bottom of the chassis 5, and the connecting shell 11 is moved again to the inner wall of the fixing shell 16 to ensure that the new laser engraving head 6 can be accurately connected. After the connection is completed, the pressure on the pressing column 10 is released, and the rebound force of the spring 12 pushes the frustum locking block 15 to reset. After resetting, the frustum locking block 15 and the inclined surface of the inner wall of the fixing shell 16 form a lock, thereby ensuring the stable installation of the laser engraving head 6. This not only simplifies the replacement process of the laser engraving head 6, but also improves its portability, allowing operators to complete the maintenance and upgrading of the equipment in a short time.

[0038] Reference Figures 4-6The stabilizing assembly includes a template 17, located on top of the worktable 4. The template 17's primary function is to provide a robust foundation for the entire stabilizing assembly, ensuring accurate installation and operation of all components. Multiple slots 18 are provided inside the template 17 to secure various workpieces, ensuring stable positioning and preventing movement during processing. Multiple mounting brackets 19 are fixedly connected to the top of the template 17. These brackets 19 provide support for the connecting plate 22, ensuring its correct positioning. Each mounting bracket 19 has a fixedly connected rotating shaft 20, allowing the connecting plate 22 to rotate flexibly for easier operation and adjustment. The connecting plate 22 is rotatably connected to the outer wall of each rotating shaft 20. The design of the connecting plate 22 allows for more precise machining at different working angles. Each connecting plate 22 has a fixed post 23 at its bottom, which serves a dual purpose of connection and support, ensuring the stability of the rubber disc 21. A rubber disc 21 is slidably connected inside each fixed post 23. The main function of the rubber disc 21 is to provide necessary cushioning and support through its elastic properties, adapting to different workpiece shapes. Each fixed post 23 contains a spring 24, which provides restoring force to the rubber disc 21, ensuring it quickly returns to its original shape under pressure. One end of each spring 24 is fixedly connected to the outer wall of the rubber disc 21 to enhance its fixing effect, and the other end is fixedly connected to the inner wall of the fixed post 23 to ensure spring stability. Each connecting plate 22 has a connecting post 25 fixedly connected to one side, which connects and supports other components, fully utilizing its stability and support. Each connecting post 25 has an arc-shaped clamping plate 26 on both sides. The arc-shaped clamping plate 26 is designed to effectively clamp the workpiece, enhancing the gripping ability of the stabilizing component. The curved clamp 26 is rotatably connected to a second fixed frame 28. The bottom of the second fixed frame 28 is fixedly connected to the top of the template 17, providing additional support and stability. Each second fixed frame 28 is provided with a third spring 27 on its inner wall. The function of the third spring 27 is to ensure flexible adjustment during operation through its elastic pushing force, which facilitates the installation and disassembly of the workpiece. One end of the third spring 27 is fixedly connected to the outer wall of the curved clamp 26, and the other end is fixedly connected to the inner wall of the second fixed frame 28.

[0039] Specifically, during the process of securing the SIM card tray, the SIM card tray is first placed on the inner wall of the card slot 18. This step ensures a tight fit between the SIM card tray and the device, thereby improving the securing effect. Subsequently, the connecting plate 22 rotates around the pivot 20 until the rubber disc 21 is moved to the top of the SIM card tray. The rubber disc 21 is designed to utilize its softness and elasticity to apply uniform pressure to the SIM card tray, achieving a secure fixation. As the connecting plate 22 rotates, it moves the connecting post 25 to the inner wall of the arc-shaped clamp 26. This linkage mechanism not only drives the arc-shaped clamp 26 to rotate but also ensures effective compression of the spring 27. The rebound force of the spring 27 pushes the arc-shaped clamp 26 to engage with the connecting post 25, effectively fixing the position of the connecting plate 22. This structural design provides additional stability, ensuring that the SIM card tray will not easily shift during operation. When the device is in use, it may cause slight vibrations to the SIM card tray; these vibrations are transmitted through the rubber disc 21 to the outer wall of the spring 24. The elasticity of spring 24 enables it to effectively absorb vibration, reduce the impact on the SIM card tray, ensure the safety and stability of the SIM card tray during use, and provide reliable protection for operation.

[0040] Working principle: During the process of fixing the SIM card tray, the SIM card tray is placed on the inner wall of the card slot 18. Then, the connecting plate 22 rotates around the pivot 20 until the rubber disc 21 is moved to the top of the SIM card tray. The rubber disc 21 is used to press and fix the SIM card tray. While the connecting plate 22 is moving, the connecting post 25 is moved to the inner wall of the arc-shaped clamp 26, which pushes the arc-shaped clamp 26 to rotate and compresses the spring 27. The rebound force of the spring 27 pushes the arc-shaped clamp 26 and the connecting post 25 to engage, fixing the position of the connecting plate 22. When the equipment is in use, the SIM card tray may experience slight vibration. This vibration is transmitted to the outer wall of the spring 24 through the rubber disc 21. The elasticity of the spring 24 absorbs the vibration, enhancing the stability of the SIM card tray during the laser engraving process.

[0041] During the disassembly and replacement of the laser engraving head 6, hold the support block 9 and push the pressing column 10 upward to move it, so that the truncated cone block 15 moves out of the outer wall of the ball 14, providing space for the ball 14 to move. During the movement, the pressing column 10 will stretch the spring 12 through the connecting ring 13. Next, pull the support block 9 downward to move the connecting shell 11 out of the inner wall of the fixed shell 16. This will allow the laser engraving head 6 to be disassembled. Then, move the other laser engraving head 6 back to the bottom of the chassis 5 and move the connecting shell 11 to the inner wall of the fixed shell 16. Next, release the pressing force on the pressing column 10, and use the rebound force of the spring 12 to push the truncated cone block 15 back to its original position, so that the ball 14 and the inclined surface of the inner wall of the fixed shell 16 are engaged, thus installing the laser engraving head 6 and realizing the portable replacement of the laser engraving head 6.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for double-sided laser-engraving characters on a mobile phone card holder, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly connected to the control unit (2) and the slide (3), the bottom of the slide (3) is fixedly connected to the chassis (5), the bottom of the chassis (5) is provided with a laser engraving head (6), the outer wall of the laser engraving head (6) is provided with a replacement component, the top of the support frame (1) is fixedly connected to the worktable (4), and the top of the worktable (4) is provided with a stabilizing component. The replacement component includes multiple retaining balls (14), which are located on the outer wall of the laser engraving head (6). Both sides of the laser engraving head (6) are fixedly connected to connecting plates (8). Each connecting plate (8) is fixedly connected to a connecting shell (11). The retaining balls (14) are slidably connected to the inside of the connecting shell (11). Each connecting shell (11) is fixedly connected to a support block (9) at the bottom. Each support block (9) is slidably connected to a pressing post (10). One end of each pressing post (10) is fixedly connected to a frustum retaining block (15). The frustum retaining block (15) is in contact with the retaining balls (14). Each connecting shell (11) is provided with a fixing shell (16) on its outer wall. Each fixing shell (16) is fixedly connected to a fixing block (7) on its outer wall. The outer wall of the fixing block (7) is fixedly connected to both sides of the chassis (5).

2. The device for double-sided laser-engraving characters of a mobile phone card holder according to claim 1, characterized in that: Each of the pressing posts (10) is provided with a spring (12) on its outer wall. One end of each spring (12) is fixedly connected to a connecting ring (13). The inner wall of the connecting ring (13) is fixedly connected to the outer wall of the pressing post (10). The other end of each spring (12) is fixedly connected to the outer wall of the support block (9).

3. The device for double-sided laser-engraving characters on a mobile card holder according to claim 1, characterized in that: The stabilizing component includes a template (17), which is located on the top of the workbench (4). The template (17) has multiple slots (18) inside, and multiple fixing brackets (19) are fixedly connected to the top of the template (17). Each fixing bracket (19) has a rotating shaft (20) fixedly connected inside.

4. The device for double-sided laser-engraving characters of a mobile phone card holder according to claim 3, characterized in that: Each of the rotating shafts (20) has a connecting plate two (22) rotatably connected to its outer wall, and each of the connecting plates two (22) has a fixed column (23) fixedly connected to its bottom, and each of the fixed columns (23) has a rubber disc (21) slidably connected inside its interior.

5. The device for double-sided laser-engraving characters of a mobile phone card holder according to claim 4, characterized in that: Each of the fixed posts (23) is provided with a second spring (24) inside. One end of each second spring (24) is fixedly connected to the outer wall of the rubber disc (21), and the other end of each second spring (24) is fixedly connected to the inner wall of the fixed post (23).

6. The device for double-sided laser-engraving characters of a mobile phone card holder according to claim 5, characterized in that: Each of the connecting plates (22) is fixedly connected to one side of a connecting post (25), and each of the connecting posts (25) is provided with an arc-shaped clamp (26) on both sides.

7. The device for double-sided laser-engraving characters of a mobile phone card holder according to claim 6, characterized in that: The arc-shaped clamp (26) is rotatably connected to a second fixing frame (28), and the bottom of the second fixing frame (28) is fixedly connected to the top of the template (17).

8. The device for double-sided laser-engraving characters of a mobile phone card holder according to claim 7, characterized in that: The inner wall of each fixed frame two (28) is provided with spring three (27), one end of the spring three (27) is fixedly connected to the outer wall of the arc-shaped clamping plate (26), and the other end of the spring three (27) is fixedly connected to the inner wall of the fixed frame two (28).