A laser engraving device

Abstract

This utility model discloses a laser engraving device, including a body, a first cooling module, a second cooling module, and a laser engraving head. The body is equipped with a worktable, which has heat dissipation channels for water inlet and outlet. The first cooling module includes a water supply pipe, a first water pump, and a first liquid storage tank. The body is equipped with a mounting frame, on which the laser engraving head is mounted and located above the worktable. The second cooling module includes a heat dissipation pipe, a second water pump, and a second liquid storage tank. The laser engraving head is equipped with a heat-conducting plate, and the heat dissipation pipe is located on the heat-conducting plate. In this way, the heat from the laser generator is conducted out by the heat-conducting plate, and then absorbed by the heat dissipation pipe and discharged by the coolant. This eliminates the traditional design where the heat dissipation pipe is in direct contact with the laser generator for heat dissipation. Combined with the first cooling module, it absorbs the heat from the worktable and the workpiece, avoiding overheating that could affect the processing effect of the workpiece, improving the processing quality of the workpiece, and has a wide range of applications.

Description

Technical Field

[0001] This utility model relates to the field of laser engraving technology, and in particular to a laser engraving device. Background Technology

[0002] Currently, laser engraving is based on CNC technology, using laser as the processing medium. The material undergoes instantaneous melting and vaporization under laser irradiation, achieving the processing objective. Laser processing features include: no contact with the material surface, no mechanical movement, no surface deformation, generally no need for fixing, unaffected by the material's elasticity or flexibility, convenient for processing soft materials, high processing precision, high speed, and wide range of applications.

[0003] The laser generator on existing laser engraving machines converts electrical energy into light energy during operation. However, the conversion efficiency is not 100%. In this energy conversion process, some electrical energy is converted into laser beam, while the other part is converted into heat energy. To ensure the stable operation of the laser generator and prevent overheating damage, it needs to be properly cooled. However, the cooling effect of existing laser engraving devices is poor. They directly connect water cooling pipes to the laser generator, so when the water cooling pipes leak, the water comes into contact with the laser generator, causing damage and rendering the machine unusable. This results in poor availability and a limited range of applications.

[0004] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a laser engraving device that uses a heat-conducting plate to conduct heat from the laser generator, and then uses a heat dissipation pipe to absorb the heat and discharge it through a coolant. This eliminates the traditional design where the heat dissipation pipe is in direct contact with the laser generator for heat dissipation. In conjunction with a first cooling module, it absorbs the heat from the worktable and the workpiece, avoiding overheating that could affect the processing effect of the workpiece, improving the processing quality of the workpiece, and has a wide range of applications.

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

[0007] A laser engraving device includes an organic body, a first cooling module, a second cooling module, and a laser engraving head; wherein:

[0008] The upper end of the machine body is provided with a worktable for placing and positioning workpieces. The interior of the worktable is provided with heat dissipation channels for water inlet and water outlet. The first cooling module includes a water supply pipe, a first water supply pump and a first liquid storage tank. The first water supply pump and the first liquid storage tank are connected to each other and are located inside the machine body. There are two water supply pipes. One water supply pipe is connected to the water inlet and the first water supply pump at both ends, and the other water supply pipe is connected to the water outlet and the first liquid storage tank at both ends.

[0009] The machine body is also equipped with a mounting frame, which is located beside the workbench. The laser engraving head is mounted on the mounting frame and located above the workbench. The second cooling module includes a heat dissipation pipe, a second water pump, and a second liquid storage tank. The laser engraving head is equipped with a heat-conducting plate, and the heat dissipation pipe is mounted on the heat-conducting plate. The two ends of the heat dissipation pipe are respectively connected to the second water pump and the second liquid storage tank. The second water pump and the second liquid storage tank are connected to each other. The second water pump and the second liquid storage tank are mounted on the mounting frame and located on one side of the laser engraving head.

[0010] As a preferred embodiment, the laser engraving head includes a laser emitter and a housing disposed outside the laser emitter. The housing includes an inner housing and an outer housing. The inner housing covers the laser emitter, and the outer housing covers the inner housing. Heat-conducting plates and heat dissipation pipes are disposed between the inner housing and the outer housing. Four heat-conducting plates are disposed on the four sides of the inner housing, and the heat dissipation pipes are spirally disposed outside the four heat-conducting plates. The outer side of the heat dissipation pipes contacts the inner wall of the outer housing.

[0011] As a preferred embodiment, the outer cover has lateral clearance openings, and both ends of the heat dissipation pipe extend out of the outer cover from the lateral clearance openings and are connected to the second water pump and the second liquid storage tank.

[0012] As a preferred embodiment, a buffer pad is provided between the heat dissipation pipe and the outer casing.

[0013] As a preferred embodiment, the heat dissipation pipe is a copper pipe.

[0014] As a preferred embodiment, the heat-conducting plate is a heat-conducting metal plate.

[0015] As a preferred embodiment, the workbench includes a base and a top seat. The upper end of the base is provided with a first groove extending downward, and the lower end of the top seat is provided with a second groove extending upward. The top seat is located at the lower end of the base. The first groove and the second groove are arranged opposite to each other. The heat dissipation channel is formed in the area enclosed by the first groove and the second groove. The water inlet and water outlet are provided on the base.

[0016] As a preferred embodiment, a sealing element is provided between the top seat and the base, and the sealing element has an opening corresponding to the first groove and the second groove.

[0017] As a preferred embodiment, the heat dissipation channels are arranged in a serpentine shape.

[0018] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly uses the design of each component to conduct heat from the laser generator through a heat-conducting plate, and then uses a heat dissipation pipe to absorb the heat and discharge it through the coolant. This eliminates the traditional design of heat dissipation pipe directly contacting the laser generator for heat dissipation, avoiding any problems with the use of heat dissipation pipe and laser generator, ensuring the normal use of the laser generator. In conjunction with the first cooling module, it absorbs the heat of the worktable and workpiece during the processing, avoiding overheating that would affect the processing effect of the workpiece, thereby improving the processing quality of the workpiece and meeting the user's needs. It has excellent usability and a wide range of applications.

[0019] Secondly, the outer cover is designed to hide the heat conduction plate and heat dissipation pipe, thereby preventing the heat dissipation pipe from being bumped or knocked by the outside. The buffer pad is designed to reduce the impact of external objects hitting or contacting the outer cover on the heat dissipation pipe, thereby ensuring the stability of the heat dissipation pipe in use. At the same time, the side clearance openings are designed to facilitate the extension of both ends of the heat dissipation pipe and its connection to the second water pump and the second liquid storage tank, resulting in good usability.

[0020] Furthermore, the sealing element improves the sealing performance of the assembly between the base and the top seat.

[0021] To more clearly illustrate the structural features, technical means, and specific objectives and functions of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a front view of an embodiment of the present utility model;

[0023] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0024] Figure 3 yes Figure 2 A magnified view of a portion of position A in the diagram;

[0025] Figure 4 yes Figure 2 A magnified view of a portion of position B in the diagram.

[0026] Explanation of reference numerals in the attached diagram:

[0027] 10. Body 11. First Cooling Module

[0028] 111. Water pipe; 112. First water pump

[0029] 113. First liquid storage tank; 12. Second cooling module

[0030] 121. Heat dissipation pipe; 122. Second water pump

[0031] 123. Second liquid storage tank; 13. Workbench

[0032] 131. Inlet 132. Outlet

[0033] 133. Heat dissipation channel; 134. Base

[0034] 135. Top seat; 136. First groove

[0035] 137. Second groove; 14. Mounting bracket

[0036] 15. Seal 151. Opening

[0037] 20. Laser engraving head; 21. Heat-conducting plate

[0038] 22. Laser emitter 23. Housing

[0039] 231. Inner cover 232. Outer cover

[0040] 233. Lateral clearance opening 24. Buffer pad. Detailed Implementation

[0041] Please refer to Figures 1 to 4 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0042] A laser engraving device includes an organism 10, a first cooling module 11, a second cooling module 12, and a laser engraving head 20; wherein:

[0043] The upper end of the machine body 10 is provided with a workbench 13 for placing and positioning workpieces. The interior of the workbench 13 is provided with a heat dissipation channel 133 with a water inlet 131 and a water outlet 132. The first cooling module 11 includes a water supply pipe 111, a first water supply pump 112 and a first liquid storage tank 113. The first water supply pump 112 and the first liquid storage tank 113 are connected to each other. The first water supply pump 112 and the first liquid storage tank 113 are located inside the machine body 10. There are two water supply pipes 111. The two ends of one water supply pipe 111 are connected to the water inlet 131 and the first water supply pump 112, respectively. The two ends of the other water supply pipe 111 are connected to the water outlet 132 and the first liquid storage tank 113, respectively.

[0044] The machine body 10 is also provided with a mounting frame 14, which is located beside the worktable 13. The laser engraving head 20 is mounted on the mounting frame 14 and located above the worktable 13. The second cooling module 12 includes a heat dissipation pipe 121, a second water pump 122, and a second liquid storage tank 123. A heat conduction plate 21 is provided on the laser engraving head 20, and the heat dissipation pipe 121 is mounted on the heat conduction plate 21. The two ends of the heat dissipation pipe 121 are respectively connected to the second water pump 122 and the second liquid storage tank 123. The second water pump 122 and the second liquid storage tank 123 are connected. The second liquid storage tank 123 is mounted on the mounting bracket 14 and located on one side of the laser engraving head 20. In this way, the heat from the laser generator is conducted out by the heat-conducting plate, and then the heat is absorbed by the heat dissipation pipe and discharged through the coolant. This eliminates the traditional design where the heat dissipation pipe is in direct contact with the laser generator for heat dissipation, avoiding any problems caused by the use of the heat dissipation pipe affecting the laser generator, ensuring the normal operation of the laser generator. Together with the first cooling module, it absorbs the heat from the worktable and workpiece during the processing, preventing overheating and affecting the processing effect of the workpiece, thereby improving the processing quality of the workpiece and meeting the user's needs. It has excellent usability and a wide range of applications.

[0045] In this embodiment, the laser engraving head 20 includes a laser emitter 22 and a housing 23 disposed outside the laser emitter. The housing 23 includes an inner housing 231 and an outer housing 232. The inner housing 231 covers the laser emitter 22, and the outer housing 232 covers the inner housing 231. The heat-conducting plate 21 and the heat dissipation pipe 121 are disposed between the inner housing 231 and the outer housing 232. Four heat-conducting plates 21 are disposed on the four sides outside the inner housing 231, and the heat dissipation pipe 121 is spirally disposed outside the four heat-conducting plates 21. The outer side of the heat dissipation pipe 121 is in contact with the inner wall of the outer housing 232.

[0046] Specifically, the outer cover 232 has a lateral clearance opening 233. Both ends of the heat dissipation pipe 121 extend out of the outer cover 232 from the lateral clearance opening 233 and are connected to the second water pump 122 and the second liquid storage tank 123. A buffer pad 24 is provided between the heat dissipation pipe 121 and the outer cover 232. Preferably, the heat conduction plate 21 is detachably connected to the inner cover 231 by screws, and the buffer pad 24 is fixed to the outer cover 232 by adhesive. The outer cover 232 is detachably connected to the inner cover 231 by screws. A support frame (not shown in the figure) is provided on the side of the outer cover 232 near the mounting bracket. The support frame is connected to the mounting frame to support the laser engraving head on the mounting frame. The heat dissipation pipe 121 is a copper pipe, the heat conduction plate 21 is a heat conduction metal plate, and the buffer pad 24 is made of silicone. In this way, the outer cover is set to hide the heat conduction plate and heat dissipation pipe, thereby avoiding collisions between the heat dissipation pipe and the outside. The buffer pad is also set to reduce the impact of collisions between external objects and the outer cover on the heat dissipation pipe, thereby ensuring the stability of the heat dissipation pipe. At the same time, the side clearance openings are designed to facilitate the extension of both ends of the heat dissipation pipe and its connection to the second water pump and the second liquid storage tank, resulting in good usability.

[0047] Furthermore, the workbench 13 includes a base 134 and a top seat 135. The upper end of the base 134 is provided with a downwardly extending first groove 136, and the lower end of the top seat 135 is provided with an upwardly extending second groove 137. The top seat 135 is located at the lower end of the base 134. The first groove 136 and the second groove 137 are arranged opposite to each other. The heat dissipation channel 131 is formed in the area enclosed by the first groove 136 and the second groove 137. The water inlet 131 and the water outlet 132 are provided on the base 134. Specifically, a sealing member 15 is provided between the top seat 135 and the base 134. The sealing member 15 is provided with an opening 151 corresponding to the positions of the first groove and the second groove. Preferably, the heat dissipation channel 133 is arranged in a serpentine shape. Thus, the setting of the sealing member is beneficial to the assembly sealing between the base and the top seat.

[0048] The key design feature of this utility model lies in its design of various components. It utilizes a heat-conducting plate to conduct heat from the laser generator, and then uses a heat dissipation pipe to absorb the heat and discharge it through coolant. This eliminates the traditional design where the heat dissipation pipe directly contacts the laser generator for heat dissipation, avoiding any issues that could arise from the heat dissipation pipe affecting the laser generator. This ensures the normal operation of the laser generator. In conjunction with the first cooling module, it absorbs heat from the worktable and workpiece during processing, preventing overheating that could affect the processing effect of the workpiece, thereby improving the processing quality of the workpiece and meeting the user's needs. It has excellent usability and a wide range of applications.

[0049] Secondly, the outer cover is designed to hide the heat conduction plate and heat dissipation pipe, thereby preventing the heat dissipation pipe from being bumped or knocked by the outside. The buffer pad is designed to reduce the impact of external objects hitting or contacting the outer cover on the heat dissipation pipe, thereby ensuring the stability of the heat dissipation pipe in use. At the same time, the side clearance openings are designed to facilitate the extension of both ends of the heat dissipation pipe and its connection to the second water pump and the second liquid storage tank, resulting in good usability.

[0050] Furthermore, the sealing element improves the sealing performance of the assembly between the base and the top seat.

[0051] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A laser engraving apparatus, characterized by: It includes an organism, a first cooling module, a second cooling module, and a laser engraving head; wherein: The upper end of the machine body is provided with a worktable for placing and positioning workpieces. The interior of the worktable is provided with heat dissipation channels for water inlet and water outlet. The first cooling module includes a water supply pipe, a first water supply pump and a first liquid storage tank. The first water supply pump and the first liquid storage tank are connected to each other and are located inside the machine body. There are two water supply pipes. One water supply pipe is connected to the water inlet and the first water supply pump at both ends, and the other water supply pipe is connected to the water outlet and the first liquid storage tank at both ends. The machine body is also equipped with a mounting frame, which is located beside the workbench. The laser engraving head is mounted on the mounting frame and located above the workbench. The second cooling module includes a heat dissipation pipe, a second water pump, and a second liquid storage tank. The laser engraving head is equipped with a heat-conducting plate, and the heat dissipation pipe is mounted on the heat-conducting plate. The two ends of the heat dissipation pipe are respectively connected to the second water pump and the second liquid storage tank. The second water pump and the second liquid storage tank are connected to each other. The second water pump and the second liquid storage tank are mounted on the mounting frame and located on one side of the laser engraving head.

2. A laser engraving apparatus as claimed in claim 1, characterized in that: The laser engraving head includes a laser emitter and a housing disposed outside the laser emitter. The housing includes an inner housing and an outer housing. The inner housing covers the laser emitter, and the outer housing covers the inner housing. Heat-conducting plates and heat dissipation pipes are disposed between the inner housing and the outer housing. Four heat-conducting plates are disposed on the four sides of the inner housing. The heat dissipation pipes are spirally disposed outside the four heat-conducting plates, and the outer side of the heat dissipation pipes contacts the inner wall of the outer housing.

3. A laser engraving apparatus as claimed in claim 2, characterized in that: The outer cover has a lateral clearance opening, and both ends of the heat dissipation pipe extend out of the outer cover from the lateral clearance opening and are connected to the second water pump and the second liquid storage tank.

4. A laser engraving apparatus as claimed in claim 2, characterized in that: A buffer pad is provided between the heat dissipation pipe and the outer cover.

5. The laser engraving apparatus of claim 1, wherein: The heat dissipation pipe is a copper pipe.

6. The laser engraving apparatus of claim 1, wherein: The heat-conducting plate is a heat-conducting metal plate.

7. The laser engraving apparatus of claim 1, wherein: The workbench includes a base and a top seat. The upper end of the base is provided with a first groove extending downward, and the lower end of the top seat is provided with a second groove extending upward. The top seat is located at the lower end of the base. The first groove and the second groove are arranged opposite to each other. The heat dissipation channel is formed in the area enclosed by the first groove and the second groove. The water inlet and water outlet are provided on the base.

8. A laser engraving apparatus as claimed in claim 7, characterized in that: A sealing element is provided between the top seat and the base, and the sealing element has an opening corresponding to the first groove and the second groove.

9. A laser engraving device according to claim 1, characterized in that: The heat dissipation channels are arranged in a snake-like shape.

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