Fixed-point laser engraving device for mobile phone shell

Abstract

The invention relates to the technical field of mobile phone shell engraving, and discloses a fixed-point laser engraving device for a mobile phone shell, the fixed-point laser engraving device comprises an operation table, a protection frame is fixedly mounted at the top of the operation table, cover plates are movably connected to the front surface and the side surface of the protection frame through shaft pins, and a fan is fixedly mounted at the top of the protection frame. Through cooperative use of a motor, a pull rope and other parts and four adjusting frames, a positioning block moves under the action of an electromagnet, when the magnetic field intensity deviates from a preset value, it is indicated that the positioning block deviates relative to the vertical position of a disc, at the moment, the disc is located at the corner of a mobile phone shell, and the mobile phone shell can be efficiently positioned; the influence of damage caused by excessive clamping of a traditional clamp is avoided, at the moment, when a positioning block abuts against the mobile phone shell, the position of the engraving machine is adjusted through a driving motor and a rotating motor, and therefore the mobile phone shell is efficiently engraved, the effects of rapid fixing and efficient engraving are achieved, and use by a user is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone case engraving, and particularly to a fixed-point laser engraving device for mobile phone cases. Background Art

[0002] Mobile phone cases emerged in the early stage of the popularization of mobile phones in the 1990s. Initially, they were mainly basic plastic protective covers. With the trends of large screens, thinness, and the rising cost of repairs, mobile phone cases have been upgraded from accessories to essential accessories. The global annual consumption exceeds 1.2 billion, forming a market scale of over 100 billion yuan. In terms of protection, the airbag buffer structure at the four corners can withstand a 2-meter drop impact, the hardness of the tempered glass back panel reaches 9H, and the matte coating reduces scratches by 67%. Their economic value is also significant. A protective case worth hundreds of yuan can avoid screen repair costs accounting for 30% of the value of the mobile phone, and the cost performance is more than 20 times that of traditional screen protectors. Personalization has become a new growth point, and with the continuous increase in the value of mobile phones, mobile phone cases have become particularly important.

[0003] With the improvement of living standards and aesthetic levels, traditional mobile phone cases can no longer meet people's needs. Some methods of engraving delicate patterns on the surface of mobile phone cases have gradually become mainstream. Pattern engraving requires the use of a laser engraving machine. When the existing laser engraving machine is in use, it usually uses a fixture for clamping and fixing. There are the following problems with fixture fixation: Fixture fixation requires the user to manually and precisely adjust the position of the mobile phone case, which has high requirements for the initial position of the mobile phone case and is not conducive to use. Moreover, manual clamping is time-consuming and laborious, reducing the efficiency of mobile phone case engraving. Whether it is electric or manual clamping, it is not easy to master the strength. Facing mobile phone cases of different materials and sizes, it may over-clamp the mobile phone case, resulting in damage, or the clamping force is insufficient, causing engraving deviations. At the same time, the existing engraving machine usually uses two tracks to change coordinates, which can only change the position of the engraving machine and cannot change the orientation, reducing the operating efficiency.

[0004] Therefore, a fixed-point laser engraving device for mobile phone cases is proposed to solve the above problems. Summary of the Invention

[0005] In order to make up for the above deficiencies, the present invention provides a fixed-point laser engraving device for mobile phone cases, aiming to improve the problems in the prior art that fixture fixation requires the user to manually and precisely adjust the position of the mobile phone case, which has high requirements for the initial position of the mobile phone case and is not conducive to use. Moreover, manual clamping is time-consuming and laborious, reducing the efficiency of mobile phone case engraving. Whether it is electric or manual clamping, it is not easy to master the strength. Facing mobile phone cases of different materials and sizes, it may over-clamp the mobile phone case, resulting in damage, or the clamping force is insufficient, causing engraving deviations. At the same time, the existing engraving machine usually uses two tracks to change coordinates, which can only change the position of the engraving machine and cannot change the orientation, reducing the operating efficiency.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A fixed-point laser engraving device for a mobile phone case, comprising: an operating table, a protective frame is fixedly installed on the top of the operating table, covers are movably connected to the front and side surfaces of the protective frame through hinge pins, a blower is fixedly installed on the top of the protective frame, a filtering and collecting box used in cooperation with the blower is fixedly installed on the front of the operating table, a flat plate is fixedly installed on the top of the operating table, two cross plates are fixedly installed on the surface of the inner wall of the operating table, two moving mechanisms are arranged at the top and bottom of the flat plate, each moving mechanism includes a motor, the motor is fixedly installed on the top of the cross plate, the output end of the motor is fixedly connected with a winding rod, a pulling rope is fixedly connected to the surface of the winding rod, the top ends of both ends of the pulling rope are fixedly connected with moving frames, sliders are slidably connected inside the two moving frames, tension springs are fixedly connected to the inner sides of the two moving frames, one of the two moving mechanisms is horizontally distributed and the other is vertically distributed, vertical rods are fixedly connected inside a plurality of the sliders, the top ends of the vertical rods are fixedly connected with discs, a positioning block is arranged on the top of the flat plate, an engraving device is arranged on the top of the inner wall of the protective frame, and electromagnets are fixedly installed on the top of all four discs, and the electromagnets cooperate with the positioning block after being powered on.

[0008] Through the above technical solutions, the protective frame and the openable cover form a closed working space, and in cooperation with the blower and the filtering and collecting box, micro-particles and harmful gases generated during engraving are adsorbed in real time, so that the PM2.5 filtration efficiency reaches 99.6%, ensuring operation safety and environmental protection compliance, keeping the operating table clean, protecting the equipment and personnel health. The settings of components such as the operating table and the flat plate facilitate the placement and operation of the mobile phone case, and can meet the engraving requirements of mobile phone cases of different sizes and shapes, with strong versatility. The flat plate facilitates the support of the mobile phone case. The motor drives the winding rod to rotate, and through the cooperation of the pulling rope and the tension spring, the positioning block can move flexibly on the flat plate, and the horizontal and vertical moving mechanisms cooperate with each other to accurately position the engraving position of the mobile phone case, improving the engraving efficiency and flexibility.

[0009] As a further description of the above technical solution: both ends of the moving frame are fixedly connected with sliding sleeves, sliding rods are slidably connected inside the sliding sleeves, both sides of the sliding rods are fixedly connected with the surface of the inner wall of the operating table, rollers are rotatably connected to the surface of the pulling rope, and fixing frames are arranged on the outer sides of a plurality of the rollers, and the bottom of the fixing frame is fixedly connected with the top of the cross plate.

[0010] Through the above technical solution, the sliding sleeves fixedly connected to both ends of the moving frame are slidably connected to the sliding rods fixed to the inner wall of the operating table, providing stable guidance for the movement of the moving frame. When the motor drives the winding rod to rotate and the pulling rope drives the moving frame to move, the cooperation between the sliding sleeve and the sliding rod can effectively limit the moving direction of the moving frame, prevent it from shaking or deviating during the movement, ensure that the slider can accurately move along the predetermined trajectory, so as to ensure that the engraving device can accurately reach the fixed point position of the mobile phone case, and improve the accuracy and consistency of engraving.

[0011] As a further description of the above technical solution: a limiting ring is movably connected to the outside of the positioning block through a bearing, a rubber strip is fixedly connected to the outside of the limiting ring, and the bottom of the positioning block is in rolling connection with the top of the flat plate through a ball.

[0012] Through the above technical solution, the electromagnets fixedly installed on the tops of the four discs, when powered on, cooperate with the positioning block to provide a strong and stable adsorption force for the fixation of the mobile phone case. Compared with the traditional mechanical clamping, this electromagnetic adsorption method can distribute the acting force more evenly, avoid damaging the surface of the mobile phone case due to excessive local pressure, and at the same time ensure that the mobile phone case always maintains a stable position during the engraving process and will not be displaced due to vibration or external interference, greatly improving the accuracy and quality of engraving. In terms of positioning flexibility, the limiting ring movably connected to the outside of the positioning block through a bearing and the rubber strip fixedly connected to the outside of the limiting ring play a good buffering and limiting role. When the mobile phone case is placed on the positioning block, the rubber strip can adapt to the edges of mobile phone cases of different shapes and sizes, provide a soft contact, and prevent scratching the mobile phone case. At the same time, the limiting ring can rotate and adjust to a certain extent according to the shape of the mobile phone case, making the positioning more flexible, capable of adapting to more types of mobile phone cases, and improving the versatility of the device. In addition, the design of the bottom of the positioning block being in rolling connection with the top of the flat plate through a ball enables the positioning block to move more smoothly when the position needs to be adjusted, reduces the frictional resistance, and makes the operation more convenient.

[0013] As a further description of the above technical solution: the engraving device includes a rotating ring, the rotating ring is movably installed on the top of the inner wall of the protective frame through a bearing seat, a guide rail is fixedly installed inside the rotating ring, a first vertical plate and a second vertical plate are respectively arranged on both sides of the guide rail, an engraving machine is fixedly installed on the surface of the first vertical plate, the second vertical plate and the first vertical plate are fixedly connected by four connecting rods, four moving wheels are movably installed on the surfaces of the four connecting rods, and two moving wheels are arranged on both the top and the bottom of the guide rail, and the moving wheels are in rolling connection with the guide rail.

[0014] Through the above technical solution, the rotating ring is movably installed at the top of the inner wall of the protective frame through a bearing seat, enabling the engraving device to achieve omnidirectional rotation. During the actual engraving process, according to different engraving requirements of the mobile phone case, the orientation of the engraving machine can be flexibly adjusted, greatly expanding the engraving range of the device and meeting the diverse market demands. In terms of operation stability, the two moving wheels arranged at the top and bottom of the guide rail together constitute a stable rolling support system. The rolling connection between the moving wheels and the guide rail reduces the frictional resistance during the movement of the engraving device, making the movement of the engraving machine smoother and more stable. This not only helps improve the engraving accuracy and quality but also reduces equipment wear, extends the service life, and reduces maintenance costs. The first vertical plate and the second vertical plate are fixedly connected by four connecting rods, forming a solid overall structure that provides reliable support for the engraving machine. The engraving machine fixedly installed on the surface of the first vertical plate can perform precise engraving in a stable environment, ensuring that each mobile phone case can achieve a high-quality engraving effect.

[0015] As a further description of the above technical solution: A moving motor is fixedly installed on the back of the second vertical plate. The output end of the moving motor is fixedly installed with a driving synchronous pulley. A synchronous belt is engaged on the surface of the driving synchronous pulley. Two driven synchronous pulleys are fixedly installed on the surfaces of two of the connecting rods. The two driven synchronous pulleys and the driving synchronous pulley are movably connected by the synchronous belt.

[0016] Through the above technical solution, the moving motor serves as the power source. Through the transmission cooperation of the driving synchronous pulley, the synchronous belt, and the driven synchronous pulleys, precise control of the movement of the engraving device is achieved. The moving motor can accurately adjust the rotation speed and direction according to the preset programs and parameters, thereby driving the engraving device to move on the guide rail along a predetermined trajectory and speed. This precise movement control enables the engraving machine to accurately locate the engraving position of the mobile phone case, ensuring that each engraving pattern meets the high-precision requirements, improving the consistency and stability of engraving. The synchronous belt drive structure is simple, easy to install and disassemble. When maintenance or replacement is required, simply loosen the tensioning device of the synchronous belt, and the synchronous belt can be easily removed for maintenance or replacement, greatly shortening the maintenance time and reducing the maintenance cost.

[0017] As a further description of the above technical solution: A rotating motor is fixedly installed at the top of the inner wall of the protective frame. The output end of the rotating motor is fixedly connected with a driving gear. A driven gear is fixedly installed on the surface of the rotating ring. The driving gear and the driven gear are used in cooperation.

[0018] Through the above technical solution, the rotating motor facilitates the rotation of the rotating frame. The driving gear and the driven gear are used in a cooperative transmission manner, which has the advantages of accurate transmission ratio, stable transmission, and strong load-bearing capacity. When the rotating motor drives the driving gear to rotate, the power can be accurately transmitted to the driven gear, enabling the rotating ring to rotate stably at a predetermined speed and direction. Compared with the two-track method, this stable transmission method reduces the vibration and shaking of the engraving device during rotation, provides a more stable working environment for the engraving machine, and helps improve the accuracy and quality of engraving.

[0019] As a further description of the above technical solution: An alarm lamp is fixedly installed at the top of the protective frame, a display and operation buttons are fixedly installed on the side of the protective frame, and support feet are fixedly installed at the bottom of the operating table.

[0020] Through the above technical solution, the alarm lamp fixedly installed at the top of the protective frame is an important part of the device safety warning system. During the operation of the device, if abnormal situations occur, such as equipment failures, excessive temperature during engraving, or the protective frame door not being closed properly, the alarm lamp will light up and flash in a timely manner, emitting an obvious visual signal to remind the operator to take measures quickly to avoid accidents, ensuring the personal safety of the operator and the normal operation of the equipment. The display fixedly installed on the side of the protective frame provides an intuitive platform for the operator to display the device operation information. Through the display, the operator can view the engraving progress, equipment parameters (such as laser power, engraving speed, etc.), fault alarm information, etc. in real time, which enables the operator to understand the operation of the equipment more comprehensively and accurately, adjust the operation strategy in a timely manner, and improve the engraving efficiency and quality. The installation of the operation buttons provides a convenient control means for the operator. The operator can start, stop, set parameters, switch modes, etc. of the equipment through the operation buttons.

[0021] As a further description of the above technical solution: A movable door is arranged at the bottom of the display, a slide rail is fixedly installed on the surface of the inner wall of the protective frame, and a sliding table is slidably connected to the surface of the slide rail. The back of the sliding table is fixedly connected to the front of the movable door.

[0022] Through the above technical solution, the setting of the movable door improves the efficient removal of the mobile phone case, and the setting of the slide rail and the sliding table improves the opening efficiency of the movable door.

[0023] As a further description of the above technical solution: Electric push rods are fixedly installed on the surface of the inner wall of the protective frame, and the output ends of the two electric push rods are respectively fixedly connected to the two movable doors through metal strips.

[0024] Through the above technical solution, the electric push rod, as a power execution element, can accurately control the opening and closing of the moving door according to a preset program or the operator's instructions. The operator does not need to manually operate the moving door. Just send a signal through the control panel or the remote control system, and the electric push rod can automatically extend and retract, driving the moving door to achieve the opening or closing action. This automatic control method greatly improves the operation convenience and work efficiency of the equipment, reduces the error and labor intensity of manual operation.

[0025] The present invention has the following beneficial effects:

[0026] 1. In the present invention, the mobile phone case is placed on the top of the four positioning blocks by opening the moving door. The placement angle does not need to be specific. At the same time, the motor is started. The rotation of the two motors drives the winding rod to wind the pulling rope, so that the pulling rope drives the adjusting frame through the action of the roller. At the same time, the tension spring inside the adjusting frame is stretched. The adjusting frame is limited by the sliding sleeve and the sliding rod. Through the coordinated use of the four adjusting frames, the slider is driven to slide inside the adjusting frame, thereby driving the four vertical rods to move. At the same time, the electromagnet drives the positioning block at the top to move, so that the positioning block presses against the four corners inside the mobile phone case. The sensor inside the disc detects the magnetic field intensity of the electromagnet. When the magnetic field intensity deviates from the preset value, it indicates that the vertical position of the positioning block relative to the disc is offset. At this time, the disc is at the corner of the mobile phone case. At this time, stop the movement of the disc, and the mobile phone case can be efficiently positioned, thereby providing efficient protection for the mobile phone case and avoiding the damage caused by traditional jigs. At this time, when the positioning block presses against the mobile phone case, the position of the engraving machine is adjusted through the driving motor and the rotating motor, so as to engrave the mobile phone case efficiently. Through the adjustment of the four positioning blocks, the position of the mobile phone case is adjusted, avoiding the traditional method of fixing the initial position of the mobile phone case, which is convenient for users to use.

[0027] 2. In the present invention, the rotating ring is movably installed on the inner wall top of the protection frame through the bearing seat, enabling the engraving device to rotate in all directions. During the actual engraving process, according to the different engraving requirements of the mobile phone case, the orientation of the engraving machine can be flexibly adjusted, greatly expanding the engraving range of the device and meeting the diverse market demands. In terms of operation stability, the two moving wheels arranged at the top and bottom of the guide rail together form a stable rolling support system. The rolling connection between the moving wheel and the guide rail reduces the frictional resistance during the movement of the engraving device, making the movement of the engraving machine smoother and more stable. This not only helps to improve the engraving accuracy and quality, but also reduces the wear of the equipment, extends the service life, and reduces the maintenance cost. The first vertical plate and the second vertical plate are fixedly connected by four connecting rods, forming a solid overall structure, providing a reliable support for the engraving machine. The engraving machine fixedly installed on the surface of the first vertical plate can perform precise engraving in a stable environment, ensuring that each mobile phone case can achieve a high-quality engraving effect. Brief Description of the Drawings

[0028] Figure 1 Schematic diagram of the structural operation table of the present invention;

[0029] Figure 2 Schematic diagram of the structural filter collection box of the present invention;

[0030] Figure 3 Schematic diagram of the structural positioning block of the present invention;

[0031] Figure 4 Schematic diagram of the structural moving door of the present invention;

[0032] Figure 5 Schematic diagram of the structural guide rail of the present invention;

[0033] Figure 6 Structural of the present invention Figure 4 Enlarged schematic diagram at position A in;

[0034] Figure 7 Schematic diagram of the structural disc of the present invention;

[0035] Figure 8 Schematic diagram of the structural sliding rod of the present invention;

[0036] Figure 9 Structural of the present invention Figure 8 Enlarged schematic diagram at position B in;

[0037] Figure 10 Structural of the present invention Figure 8 Enlarged schematic diagram at position C in.

[0038] Legend Explanation:

[0039] 1. Operation table; 2. Protection frame; 3. Cover plate; 4. Fan; 5. Filter collection box; 6. Flat plate; 7. Horizontal plate; 8. Moving mechanism; 81. Motor; 82. Reel rod; 83. Pull rope; 84. Moving frame; 85. Slide block; 86. Tension spring; 87. Vertical rod; 88. Disc; 810. Positioning block; 811. Slide sleeve; 812. Slide rod; 813. Roller; 814. Fixed frame; 815. Electromagnet; 816. Limit ring; 817. Rubber strip; 9. Engraving device; 91. Rotating ring; 92. Guide rail; 93. First vertical plate; 94. Second vertical plate; 95. Engraving machine; 96. Connecting rod; 97. Moving wheel; 98. Moving motor; 99. Driving synchronous pulley; 910. Synchronous belt; 911. Driven synchronous pulley; 912. Rotating motor; 913. Driving gear; 914. Driven gear; 10. Alarm lamp; 11. Display; 12. Operation button; 13. Support foot; 14. Moving door; 15. Slide rail; 16. Sliding table; 17. Electric push rod. Detailed Description of the Invention

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] Referring to Figures 1-10 , an embodiment provided by the present invention: a fixed-point laser engraving device 9 for a mobile phone case, including: an operating table 1, a protective frame 2 is fixedly installed on the top of the operating table 1, the front and side surfaces of the protective frame 2 are movably connected with cover plates 3 through hinge pins, a blower 4 is fixedly installed on the top of the protective frame 2, a filter collection box 5 used in cooperation with the blower 4 is fixedly installed on the front surface of the operating table 1, a flat plate 6 is fixedly installed on the top of the operating table 1, two cross plates 7 are fixedly installed on the inner surface of the inner wall of the operating table 1, two moving mechanisms 8 are arranged at the top and bottom of the flat plate 6, the moving mechanism 8 includes a motor 81, the motor 81 is fixedly installed on the top of the cross plate 7, the output end of the motor 81 is fixedly connected with a winding rod 82, a pulling rope 83 is fixedly connected to the surface of the winding rod 82, the top of both ends of the pulling rope 83 is fixedly connected with a moving frame 84, a slider 85 is slidably connected inside the two moving frames 84, a tension spring 86 is fixedly connected to the inner side of the two moving frames 84, one of the two moving mechanisms 8 is horizontally distributed and the other is vertically distributed, a vertical rod 87 is fixedly connected inside the plurality of sliders 85, the top of the vertical rod 87 is fixedly connected with a disc 88, a positioning block 810 is arranged on the top of the flat plate 6, an engraving device 9 is arranged on the top inner wall of the protective frame 2, an electromagnet 815 is fixedly installed on the top of the four discs 88, and after the electromagnet 815 is powered on, it is used in cooperation with the positioning block 810. The protective frame 2 and the openable cover plate 3 form a closed working space, and cooperate with the blower 4 and the filter collection box 5 to adsorb the fine particles and harmful gases generated by engraving in real time, so that the PM2.5 filtration efficiency reaches 99.6%, ensuring operation safety and environmental protection compliance, maintaining the cleanliness of the operating table 1, protecting the equipment and personnel health. The settings of components such as the operating table 1 and the flat plate 6 facilitate the placement and operation of the mobile phone case, can meet the engraving requirements of mobile phone cases of different sizes and shapes, have strong versatility, the flat plate 6 is convenient for supporting the mobile phone case, the motor 81 drives the winding rod 82 to rotate, and through the cooperation of the pulling rope 83 and the tension spring 86, the positioning block 810 can be flexibly moved on the flat plate 6, and the horizontal and vertical moving mechanisms 8 cooperate with each other to accurately position the engraving position of the mobile phone case, improving the engraving efficiency and flexibility.

[0042] Referring to Figures 1-10, both ends of the moving frame 84 are fixedly connected with sliding sleeves 811. A sliding rod 812 is slidably connected inside the sliding sleeve 811. Both sides of the sliding rod 812 are fixedly connected to the inner wall surface of the operating table 1. A roller 813 is rotatably connected to the surface of the pulling rope 83. A fixing frame 814 is arranged outside a plurality of rollers 813. The bottom of the fixing frame 814 is fixedly connected to the top of the cross plate 7. The sliding sleeve 811 fixedly connected to both ends of the moving frame 84 is slidably connected to the sliding rod 812 fixed to the inner wall of the operating table 1, providing stable guidance for the movement of the moving frame 84. When the motor 81 drives the winding rod 82 to rotate and the pulling rope 83 drives the moving frame 84 to move, the cooperation between the sliding sleeve 811 and the sliding rod 812 can effectively limit the moving direction of the moving frame 84, prevent it from shaking or deviating during the movement, ensure that the slider 85 can accurately move along the predetermined track, so as to ensure that the engraving device 9 can accurately reach the fixed point position of the mobile phone case, and improve the accuracy and consistency of engraving.

[0043] Refer to Figures 1-10 , a limiting ring 816 is movably connected to the outside of the positioning block 810 through a bearing. A rubber strip 817 is fixedly connected to the outside of the limiting ring 816. The bottom of the positioning block 810 is in rolling connection with the top of the flat plate 6 through a ball. Electromagnets 815 fixedly installed on the tops of the four discs 88 are used in cooperation with the positioning block 810 after being powered on, providing a strong and stable adsorption force for fixing the mobile phone case. This electromagnetic adsorption method can distribute the acting force more evenly compared with the traditional mechanical clamping, avoid damaging the surface of the mobile phone case due to excessive local pressure, and ensure that the mobile phone case always maintains a stable position during engraving and will not be displaced due to vibration or external interference, greatly improving the accuracy and quality of engraving. In terms of positioning flexibility, the limiting ring 816 movably connected to the outside of the positioning block 810 through a bearing and the rubber strip 817 fixedly connected to the outside of the limiting ring 816 play a good buffering and limiting role. When the mobile phone case is placed on the positioning block 810, the rubber strip 817 can adapt to the edges of mobile phone cases with different shapes and sizes, provide a soft contact, and prevent scratching the mobile phone case. At the same time, the limiting ring 816 can rotate and adjust to a certain extent according to the shape of the mobile phone case, making the positioning more flexible, being able to adapt to more types of mobile phone cases, and improving the versatility of the device. In addition, the design that the bottom of the positioning block 810 is in rolling connection with the top of the flat plate 6 through a ball enables the positioning block 810 to move more smoothly when the position needs to be adjusted, reduces the frictional resistance, and makes the operation more convenient.

[0044] Refer to Figures 1-10, the engraving device 9 includes a rotating ring 91. The rotating ring 91 is movably installed at the top of the inner wall of the protective frame 2 through a bearing seat. A guide rail 92 is fixedly installed inside the rotating ring 91. On both sides of the guide rail 92, a first vertical plate 93 and a second vertical plate 94 are respectively arranged. An engraving machine 95 is fixedly installed on the surface of the first vertical plate 93. The second vertical plate 94 and the first vertical plate 93 are fixedly connected by four connecting rods 96. Four moving wheels 97 are movably installed on the surfaces of the four connecting rods 96. Two moving wheels 97 are arranged at the top and bottom of the guide rail 92. The moving wheels 97 are in rolling connection with the guide rail 92. The rotating ring 91 is movably installed at the top of the inner wall of the protective frame 2 through a bearing seat, enabling the engraving device 9 to achieve omnidirectional rotation. During the actual engraving process, the orientation of the engraving machine 95 can be flexibly adjusted according to different engraving requirements of the mobile phone case, greatly expanding the engraving range of the device and meeting the diverse market demands. In terms of operating stability, the two moving wheels 97 arranged at the top and bottom of the guide rail 92 together constitute a stable rolling support system. The rolling connection between the moving wheels 97 and the guide rail 92 reduces the frictional resistance during the movement of the engraving device 9, making the movement of the engraving machine 95 smoother and more stable. This not only helps improve the engraving accuracy and quality but also reduces the wear of the equipment, extends the service life, and reduces the maintenance cost. The first vertical plate 93 and the second vertical plate 94 are fixedly connected by four connecting rods 96, forming a solid overall structure that provides reliable support for the engraving machine 95. The engraving machine 95 fixedly installed on the surface of the first vertical plate 93 can perform precise engraving in a stable environment, ensuring that each mobile phone case can achieve a high-quality engraving effect.

[0045] Refer to Figures 1-10, a moving motor 98 is fixedly installed on the back of the second vertical plate 94. The output end of the moving motor 98 is fixedly installed with a driving synchronous pulley 99. A synchronous belt 910 is engaged with the surface of the driving synchronous pulley 99. The surfaces of two connecting rods 96 are fixedly installed with driven synchronous pulleys 911. The two driven synchronous pulleys 911 and the driving synchronous pulley 99 are movably connected through the synchronous belt 910. The moving motor 98 serves as a power source. Through the transmission cooperation of the driving synchronous pulley 99, the synchronous belt 910 and the driven synchronous pulleys 911, precise control of the movement of the engraving device 9 is achieved. The moving motor 98 can accurately adjust the rotation speed and direction according to preset programs and parameters, thereby driving the engraving device 9 to move on the guide rail 92 along a predetermined trajectory and speed. This precise motion control enables the engraving machine 95 to accurately locate the engraving position of the mobile phone case, ensuring that each engraved pattern can meet the high-precision requirements, improving the consistency and stability of engraving. The synchronous belt 910 transmission structure is simple, and installation and disassembly are convenient. When maintenance or replacement is required, simply loosen the tensioning device of the synchronous belt 910, and the synchronous belt 910 can be easily removed for repair or replacement, greatly shortening the maintenance time and reducing the maintenance cost. A rotating motor 912 is fixedly installed at the top of the inner wall of the protective frame 2. The output end of the rotating motor 912 is fixedly connected with a driving gear 913. The surface of the rotating ring 91 is fixedly installed with a driven gear 914. The driving gear 913 and the driven gear 914 are used in cooperation. The rotating motor 912 facilitates the rotation of the rotating frame. The transmission method using the cooperation of the driving gear 913 and the driven gear 914 has the advantages of accurate transmission ratio, stable transmission, strong load-bearing capacity, etc. When the rotating motor 912 drives the driving gear 913 to rotate, the power can be accurately transmitted to the driven gear 914, enabling the rotating ring 91 to rotate stably at a predetermined rotation speed and direction. Compared with the two-track method, this stable transmission method reduces the vibration and shaking of the engraving device 9 during the rotation process, providing a more stable working environment for the engraving machine 95 and helping to improve the accuracy and quality of engraving.

[0046] Refer to Figures 1-10, an alarm light 10 is fixedly installed at the top of the protective frame 2, a display 11 and operation buttons 12 are fixedly installed on the side of the protective frame 2, support feet 13 are fixedly installed at the bottom of the operation table 1. The alarm light 10 fixedly installed at the top of the protective frame 2 is an important part of the device safety warning system. During the operation of the device, if abnormal situations occur, such as equipment failures, excessive temperature during engraving, the door of the protective frame 2 not being closed properly, etc., the alarm light 10 will light up and flash in time, emitting an obvious visual signal to remind the operator to take measures quickly, avoid accidents, and ensure the personal safety of the operator and the normal operation of the equipment. The display 11 fixedly installed on the side of the protective frame 2 provides an intuitive display platform for the operator to view the equipment operation information. Through the display 11, the operator can view the engraving progress, equipment parameters (such as laser power, engraving speed, etc.), fault alarm information, etc. in real time. This enables the operator to understand the operation of the equipment more comprehensively and accurately, adjust the operation strategy in time, and improve the engraving efficiency and quality. The installation of the operation buttons 12 provides a convenient control means for the operator. The operator can start, stop, set parameters, switch modes, etc. of the equipment through the operation buttons 12. A movable door 14 is provided at the bottom of the display 11. A slide rail 15 is fixedly installed on the inner wall surface of the protective frame 2. A sliding table 16 is slidably connected to the surface of the slide rail 15. The back of the sliding table 16 is fixedly connected to the front of the movable door 14. The setting of the movable door 14 improves the efficient removal of the mobile phone case. The setting of the slide rail 15 and the sliding table 16 improves the opening efficiency of the movable door 14. An electric push rod 17 is fixedly installed on the inner wall surface of the protective frame 2. The output ends of the two electric push rods 17 are respectively fixedly connected to the two movable doors 14 through metal strips. As a power execution element, the electric push rod 17 can accurately control the opening and closing of the movable door 14 according to a preset program or the operator's instruction. The operator does not need to manually operate the movable door 14. Just send a signal through the control panel or the remote control system, and the electric push rod 17 can automatically extend and retract, driving the movable door 14 to achieve the opening or closing action. This automatic control method greatly improves the operation convenience and working efficiency of the equipment, reduces the error and labor intensity of manual operation.

[0047] Working principle: The user opens the movable door 14 and places the mobile phone case on the top of the four positioning blocks 810. At the same time, the motor 81 is started. The rotation of the two motors 81 drives the winding rod 82 to wind the pulling rope 83, so that the pulling rope 83 pulls the adjusting frame through the action of the roller 813. At the same time, the tension spring 86 inside the adjusting frame is stretched. The adjusting frame is limited by the sliding sleeve 811 and the sliding rod 812. Through the coordinated use of the four adjusting frames, the slider 85 is driven to slide inside the adjusting frame, thereby driving the four vertical rods 87 to move. At the same time, the electromagnetic iron 815 drives the positioning block 810 at the top to move. The friction with the inner surface of the mobile phone case is reduced by the top ball, so that the positioning block 810 presses against the four corners inside the mobile phone case. The position of the engraving machine 95 is adjusted by the driving motor and the rotating motor 912, so as to engrave the mobile phone case efficiently and facilitate the user to use.

[0048] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fixed-point laser engraving device for a mobile phone case, comprising: An operating table (1) is characterized in that: a protective frame (2) is fixedly mounted on the top of the operating table (1), the front and side surfaces of the protective frame (2) are movably connected to a cover plate (3) via an axle pin, a fan (4) is fixedly mounted on the top of the protective frame (2), a filter collection box (5) used in conjunction with the fan (4) is fixedly mounted on the front of the operating table (1), a flat plate (6) is fixedly mounted on the top of the operating table (1), two horizontal plates (7) are fixedly mounted on the surface of the inner wall of the operating table (1), two moving mechanisms (8) are arranged at the bottom of the top of the flat plate (6), and the moving mechanism (8) includes a motor (81), the motor (81) is fixedly mounted on the top of the horizontal plate (7), the output end of the motor (81) is fixedly connected to a winding rod (82), and the winding rod (82) is fixedly mounted on the top of the horizontal plate (7). ) is fixedly connected to the surface of the protective frame (2), the tops of both ends of the pull rope (83) are fixedly connected to moving frames (84), the insides of the two moving frames (84) are slidably connected to sliders (85), the inner sides of the two moving frames (84) are fixedly connected to tension springs (86), one of the two moving mechanisms (8) is distributed horizontally and the other is distributed vertically, the insides of the plurality of sliders (85) are fixedly connected to vertical rods (87), the tops of the vertical rods (87) are fixedly connected to disks (88), the top of the flat plate (6) is provided with a positioning block (810), the top of the inner wall of the protective frame (2) is provided with an engraving device (9), and the tops of the four disks (88) are fixedly installed with electromagnets (815), which cooperate with the positioning block (810) when powered on.

2. A fixed-point laser engraving device for a mobile phone case according to claim 1, characterized in that: Both ends of the movable frame (84) are fixedly connected to a sliding sleeve (811), the interior of the sliding sleeve (811) is slidably connected to a sliding rod (812), both sides of the sliding rod (812) are fixedly connected to the surface of the inner wall of the operating table (1), the surface of the pull rope (83) is rollingly connected to a roller (813), a fixing frame (814) is arranged on the outer side of a plurality of the rollers (813), and the bottom of the fixing frame (814) is fixedly connected to the top of the horizontal plate (7).

3. A fixed-point laser engraving device for a mobile phone case according to claim 1, characterized in that: The outer side of the positioning block (810) is movably connected to a limiting ring (816) via a bearing, the outer side of the limiting ring (816) is fixedly connected to a rubber strip (817), and the bottom of the positioning block (810) is rollingly connected to the top of the flat plate (6) via a ball bearing.

4. A fixed-point laser engraving device for a mobile phone case according to claim 1, characterized in that: The engraving device (9) comprises a rotating circle (91), wherein the rotating circle (91) is movably mounted on the top of the inner wall of the protective frame (2) via a bearing seat, a guide rail (92) is fixedly mounted inside the rotating circle (91), a first vertical plate (93) and a second vertical plate (94) are respectively arranged on both sides of the guide rail (92), an engraving machine (95) is fixedly mounted on the surface of the first vertical plate (93), the second vertical plate (94) is fixedly connected to the first vertical plate (93) via four connecting rods (96), four moving wheels (97) are movably mounted on the surfaces of the four connecting rods (96), two moving wheels (97) are arranged on the top and bottom of the guide rail (92), and the moving wheels (97) are rollingly connected to the guide rail (92).

5. A fixed-point laser engraving device for a mobile phone case according to claim 4, characterized in that: A mobile motor (98) is fixedly mounted on the back of the second vertical plate (94), and a driving synchronous wheel (99) is fixedly mounted on the output end of the mobile motor (98), and a synchronous belt (910) is meshed on the surface of the driving synchronous wheel (99), wherein driven synchronous wheels (911) are fixedly mounted on the surfaces of the two connecting rods (96), and the two driven synchronous wheels (911) are movably connected to the driving synchronous wheel (99) via the synchronous belt (910).

6. A fixed-point laser engraving device for a mobile phone case according to claim 4, characterized in that: A rotating motor (912) is fixedly mounted on the top of the inner wall of the protection frame (2); a driving gear (913) is fixedly connected to the output end of the rotating motor (912); a driven gear (914) is fixedly mounted on the surface of the rotating circle (91); and the driving gear (913) and the driven gear (914) are used in conjunction with each other.

7. The fixed-point laser engraving device for a mobile phone case according to claim 1, characterized in that: An alarm light (10) is fixedly mounted on the top of the protection frame (2), a display (11) and an operation button (12) are fixedly mounted on the side of the protection frame (2), and a support foot (13) is fixedly mounted on the bottom of the operating table (1).

8. A fixed-point laser engraving device for a mobile phone case according to claim 7, characterized in that: A movable door (14) is arranged at the bottom of the display (11), a slide rail (15) is fixedly installed on the surface of the inner wall of the protective frame (2), a slide platform (16) is slidably connected to the surface of the slide rail (15), and the back side of the slide platform (16) is fixedly connected to the front side of the movable door (14).

9. The fixed-point laser engraving device for a mobile phone case according to claim 1, characterized in that: An electric push rod (17) is fixedly mounted on the surface of the inner wall of the protection frame (2), and the output ends of the two electric push rods (17) are fixedly connected to the two movable doors (14) via metal bars.

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