A laser engraving device with visual protection

Abstract

The application discloses a visual protection laser engraving device, which comprises a processing table, a protective cover body is arranged on the top of the processing table, the sliding block and the mounting frame are covered by the protective cover body, openings are arranged on the top of the protective cover body, a fan two is arranged on the top of the protective cover body, a filter plate is arranged on the top of the protective cover body and located on the top of the openings, a door body is arranged on the front end of the protective cover body, a light filter glass is arranged on the front end in the door body, and heat insulation glass is arranged on the rear end of the light filter glass in the door body. The visual protection laser engraving device is provided with an air outlet pipe and a fan two, air is sucked from the outside by the fan two, and the air is sprayed out through the air outlet pipe, so that the position to be processed is aligned, so that the workpiece will not be burned when being processed, and the generated debris is blown away, so that the subsequent processing process is not affected.

Description

Technical Field

[0001] This invention relates to the field of laser engraving technology, and in particular to a laser engraving device with visual protection. Background Technology

[0002] Laser engraving is a physical deformation process that uses CNC technology to irradiate the surface of a material with a laser, causing the surface to melt and vaporize instantly. The engraved text is free of scratches, the surface remains smooth, and the text does not wear off.

[0003] Chinese patent application CN114309958A discloses a laser engraving device, comprising: a base, a vertical plate, and a fixed box, wherein the vertical plate is disposed on the base, and the fixed box is connected to the vertical plate via a connecting plate, and an engraving box is also disposed within the fixed box; a laser engraving module disposed within the engraving box, wherein an engraving head is connected to the laser engraving module; and a polishing mechanism located within the engraving box; wherein the polishing mechanism includes a control component, a support component, a dust removal component, and a polishing component, the dust removal component being connected to the polishing component, and the polishing component including a grinding wheel, a movable push rod, a connecting rod, a second rotating block, a stabilizing plate, a first rotating block, and a support block. This invention features an innovative structure, effectively improving the processing efficiency of the device through the polishing mechanism.

[0004] However, the above technical solutions have certain shortcomings:

[0005] 1. The above structure uses the engraving head in the laser engraving module to engrave the workpiece. Before engraving, the surface of the material can be polished by the polishing mechanism. However, during the use of laser engraving, if non-metallic materials such as wood or leather are engraved, they are prone to combustion due to high temperature, which may cause safety risks.

[0006] 2. When the above structure is in use, the material needs to be placed between two fixed blocks manually to position it when the material is fed into or out of the device. However, the engraving head is hot after processing, and there is a safety risk in manually unloading the material. Summary of the Invention

[0007] The purpose of this invention is to provide a visually protected laser engraving device to solve the safety risks of unavoidable combustion during processing and the safety hazards of material cutting mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a visually protected laser engraving device, comprising a processing table,

[0009] The processing table has a feeding channel on one side for feeding materials, and a pre-treatment component is provided in the feeding channel. The processing table has a lifting channel in the middle, and a lifting clamping drive box is installed in the lifting channel. The clamping drive box is provided with a clamping unloading component.

[0010] The top of the processing table is equipped with two sliders, and a mounting bracket is installed between the sliders. A horizontally movable mounting plate is installed at the front end of the mounting bracket. An engraving head is fixedly installed at the front end of the mounting plate, and an air outlet pipe is installed at the side of the engraving head at the front end of the mounting plate.

[0011] The top of the processing table is equipped with a protective cover that covers the slider and the mounting bracket. Openings are provided on both sides of the top of the protective cover, and a filter plate is installed at the opening on the top of the protective cover. A second fan is installed on the top of the protective cover. A door is provided at the front end of the protective cover. A filter glass is installed at the front end of the door, and a heat-insulating glass is installed at the rear end of the filter glass.

[0012] As a further aspect of the present invention: a first drive belt for driving the slider to move back and forth is installed on the top of the processing table, and a second drive belt for driving the mounting plate to move laterally is installed on the top of the mounting frame.

[0013] By adopting the above technical solution, it is convenient to control the front-back position and lateral position of the engraving head.

[0014] As a further embodiment of the present invention: the top of the air outlet pipe passes through the protective cover and is connected to the second air outlet of the fan, and the air outlet pipe is provided with a telescopic pipe section inside the protective cover.

[0015] By adopting the above technical solution, it is convenient to deliver high-speed airflow through the two pairs of air outlet pipes of the fan, so that the surface of the workpiece will not burn due to high temperature during processing, and the generated waste residue can be blown away to avoid affecting subsequent engraving.

[0016] As a further embodiment of the present invention: the pretreatment component includes an adsorption plate, a perforated plate, a blower, and an air guide box. The perforated plate is installed inside the bottom wall of the feeding channel, the adsorption plate is installed at the bottom of the perforated plate, the air guide box is installed inside the top wall of the feeding channel, and the blower is installed on the side wall of the air guide box away from the feeding channel. An air inlet channel connected to the air inlet of the blower is opened on the side wall of the processing table.

[0017] By adopting the above technical solution, airflow is delivered through a pair of air guide boxes of the blower, so that the workpiece is pre-treated by air blowing when it is fed, so as to avoid the presence of impurities on the surface of the workpiece affecting the engraving process. After the impurities are blown off, they are adsorbed by the adsorption plate.

[0018] As a further aspect of the present invention: the air inlet channel is provided with a filter box, and a stop block for limiting the position of the filter box is installed on the inner wall of the air inlet channel, and a replaceable filter element is installed inside the filter box.

[0019] By adopting the above technical solution, it is easy to achieve the effect of filtering the air flowing through the air inlet channel, so that dust will not re-adhere when blowing air onto the workpiece.

[0020] As a further embodiment of the present invention: the end of the feeding channel is connected to the lifting channel, a waste bin is installed at the bottom of the lifting channel, a clamping drive box is provided above the waste bin, electric slide rails for driving the clamping drive box to lift are installed on the front and rear walls of the lifting channel, lifting blocks inserted into the electric slide rails are installed on the front and rear sides of the clamping drive box, the side wall of the clamping drive box away from the feeding channel is a rotating side plate, a servo motor is installed on the clamping drive box, and the output shaft of the servo motor is connected to the rotating shaft of the rotating side plate.

[0021] By adopting the above technical solution, it is convenient to let the workpiece enter the clamping drive box, and the clamping drive box is lifted and lowered by the electric slide rail, which facilitates the subsequent laser engraving process.

[0022] As a further aspect of the present invention: the clamping and unloading assembly includes clamping plates and rollers. Two clamping plates are mirror-installed in the clamping drive box on one side near the rotating side plate, and multiple rollers are rotatably installed on the side of the clamping plates that are close to each other. An electric push rod is installed on the inner wall of the clamping drive box, and the telescopic shaft of the electric push rod is connected to the clamping plate. A drive motor for driving the rollers to rotate is provided inside the clamping plate.

[0023] By adopting the above technical solution, it is convenient to position and clamp the workpiece that enters the clamping drive box, and after processing, the workpiece can be automatically unloaded by rotating the roller.

[0024] As a further embodiment of the present invention: the lifting channel inside the processing table is inclined to the side away from the feeding channel and a discharge ramp is provided, and a collection box is placed on the outside of the processing table at the end of the discharge ramp.

[0025] By adopting the above technical solution, after the workpiece leaves the clamping drive box from the left side, it can enter the collection box through the unloading ramp to complete the automatic collection process.

[0026] Compared with the prior art, the beneficial effects of the present invention are: this visually protective laser engraving device,

[0027] (1) The present invention is provided with an air outlet pipe and a second fan. The second fan draws air from the outside and sprays the air out through the air outlet pipe, aiming at the processing position, so that the workpiece will not burn during processing and the debris generated during processing is blown away to avoid affecting the subsequent processing.

[0028] (2) The present invention is equipped with a feeding channel, a lifting channel and a discharge ramp. The feeding channel is used to load the workpiece, the lifting channel moves the workpiece to a designated position, and the discharge ramp realizes the automated discharge process. This process does not require manual intervention and avoids the safety hazards caused by human hands coming into contact with high-temperature parts. Attached Figure Description

[0029] Figure 1 This is a front view structural diagram of the present invention;

[0030] Figure 2 This is a schematic cross-sectional view of the present invention;

[0031] Figure 3 This is an enlarged structural diagram of point A in the present invention;

[0032] Figure 4 This is a schematic diagram of the three-dimensional structure of the clamping drive box of the present invention;

[0033] Figure 5 This is a side sectional view of the protective cover of the present invention.

[0034] In the diagram: 1. Processing table; 101. Feeding channel; 102. Lifting channel; 103. Unloading ramp; 104. Air inlet channel; 105. Stop block; 2. Feeding hopper; 3. Clamping drive box; 301. Lifting block; 302. Rotating side plate; 303. Servo motor; 304. Clamping plate; 305. Roller; 4. Waste bin; 5. Adsorption plate; 6. Mesh plate; 7. Fan 1; 8. Air guide box; 9. Electric slide rail; 10. Slider; 11. Drive belt 1; 12. Mounting bracket; 13. Drive belt 2; 14. Mounting plate; 15. Engraving head; 16. Air outlet duct; 17. Protective cover; 18. Opening; 19. Fan 2; 20. Filter plate; 21. Filter box; 2101. Filter element; 22. Door; 2201. Filter glass; 2202. Heat insulation glass; 23. Collection box. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1-5 This invention provides a technical solution: a visually protected laser engraving device, including a processing table 1.

[0037] A feeding channel 101 for feeding is provided on one side of the processing table 1, and a pre-processing component is provided in the feeding channel 101. A lifting channel 102 is provided in the middle of the processing table 1, and a lifting clamping drive box 3 is installed in the lifting channel 102. A clamping unloading component is provided in the clamping drive box 3.

[0038] Two sliders 10 are installed on the top of the processing table 1, and a mounting bracket 12 is installed between the sliders 10. A horizontally movable mounting plate 14 is installed at the front end of the mounting bracket 12. An engraving head 15 is fixedly installed at the front end of the mounting plate 14, and an air outlet pipe 16 is installed on the side of the engraving head 15 at the front end of the mounting plate 14.

[0039] The top of the processing table 1 is provided with a protective cover 17, which covers the slider 10 and the mounting bracket 12. The top of the protective cover 17 has openings 18 on both sides, and a filter plate 20 is installed at the opening 18 on the top of the protective cover 17. A fan 29 is installed on the top of the protective cover 17. A door 22 is opened at the front end of the protective cover 17. A filter glass 2201 is installed at the front end of the door 22, and a heat insulation glass 2202 is installed at the rear end of the filter glass 2201 on the door 22.

[0040] During use, the workpiece is placed into the feeding channel 101 through the feeding hopper 2 installed on the side of the processing table 1. The inclined feeding channel 101 causes the workpiece to slide down, and the pre-treatment component can blow air on the sliding workpiece to prevent the workpiece from having debris on its surface after entering the device. Then the workpiece falls into the clamping drive box 3, and the clamping drive box 3 is lifted by the lifting mechanism for the laser engraving process. During this process, the fan 19 blows a high-speed airflow to the engraving position of the workpiece through the air outlet 16 to prevent the workpiece from burning due to high temperature. It can also clean the waste residue on the surface of the workpiece. Smoke is generated during the laser engraving process. The smoke rises through the opening 18 and passes through the filter plate 20 to be discharged from the protective cover 17. The filter plate 20 filters and absorbs the smoke to prevent the smoke from affecting the human body. When observing through the glass on the door 22 during engraving, the light filter glass 2201 filters out the glaring light to prevent eye irritation, and the heat insulation glass 2202 can prevent the internal heat from overflowing and affecting the working environment.

[0041] Please see Figure 2 In one embodiment of the present invention, a drive belt 11 for driving the slider 10 to move back and forth is installed on the top of the processing table 1, and a drive belt 13 for driving the mounting plate 14 to move laterally is installed on the top of the mounting bracket 12.

[0042] During the laser engraving process, the programmed program controls the start of drive belt 11, drive belt 2, and engraving head 15, thereby controlling the front-to-back and lateral positions of the engraving head 15 and engraving the specified pattern during the continuous lateral movement.

[0043] Please see Figure 2 In one embodiment of the present invention, the top of the air outlet pipe 16 passes through the protective cover 17 and is connected to the air outlet of the second fan 19. The air outlet pipe 16 is provided with a telescopic pipe section inside the protective cover 17.

[0044] During the workpiece processing, the second fan 19 delivers gas to the air outlet pipe 16, and the telescopic pipe section design on the air outlet pipe 16 allows the air outlet pipe 16 to move synchronously without being affected when the mounting plate 14 is driven to move.

[0045] Please see Figure 1 and Figure 2 In one embodiment of the present invention, the pretreatment component includes an adsorption plate 5, a perforated plate 6, a blower 7, and an air guide box 8. The perforated plate 6 is installed in the bottom wall of the feeding channel 101, the adsorption plate 5 is installed at the bottom of the perforated plate 6, the air guide box 8 is installed in the top wall of the feeding channel 101, and the blower 7 is installed on the side wall of the air guide box 8 away from the feeding channel 101. An air inlet channel 104 connected to the air inlet of the blower 7 is opened on the side wall of the processing table 1.

[0046] When the workpiece enters the feeding channel 101, the blower 7 blows air onto the workpiece through the air guide box 8. The bottom of the air guide box 8 has multiple air outlets, which blows off the dust and debris on the surface of the workpiece. Then, the dust and debris pass through the mesh plate 6 and are adsorbed by the adsorption plate 5, achieving a highly efficient pre-cleaning effect before processing and enabling automated feeding.

[0047] Please see Figure 2 In one embodiment of the present invention, the air inlet channel 104 is provided with a filter box 21, and a stop 105 for limiting the filter box 21 is installed on the inner wall of the air inlet channel 104. A replaceable filter element 2101 is installed inside the filter box 21.

[0048] When the blower 7 starts, the external air is blown into the feed channel 101 through the air inlet channel 104. At this time, the filter box 21 plays an effective filtering role, preventing the air drawn by the blower 7 from containing too much dust, which would affect the pretreatment effect.

[0049] Please see Figure 2 and Figure 4In one embodiment of the present invention, the end of the feeding channel 101 is connected to the lifting channel 102. A waste box 4 is installed at the bottom of the lifting channel 102. A clamping drive box 3 is provided above the waste box 4. Electric slide rails 9 for driving the clamping drive box 3 to lift are installed on the front and rear walls of the lifting channel 102. Lifting blocks 301 inserted into the electric slide rails 9 are installed on the front and rear sides of the clamping drive box 3. The side wall of the clamping drive box 3 away from the feeding channel 101 is a rotating side plate 302. A servo motor 303 is installed on the clamping drive box 3, and the output shaft of the servo motor 303 is connected to the rotating shaft of the rotating side plate 302.

[0050] After the workpiece enters the clamping drive box 3, the clamping drive box 3 is raised and lowered by the electric slide rail 9, so that the workpiece moves to the bottom of the processing mechanism and completes the laser engraving process. It should be noted that the bottom of the clamping drive box 3 has several through holes to facilitate the waste to fall into the waste bin 4. After the processing is completed, the servo motor 303 can drive the rotating side plate 302 to rotate, so that the workpiece can be moved out of the clamping drive box 3 from the left side.

[0051] Please see Figure 2 and Figure 4 In one embodiment of the present invention, the clamping and unloading assembly includes clamping plates 304 and rollers 305. Two clamping plates 304 are mirror-mounted in the clamping drive box 3 on one side near the rotating side plate 302, and a plurality of rollers 305 are rotatably mounted on the side of the clamping plates 304 that are close to each other. An electric push rod is installed on the inner wall of the clamping drive box 3, and the telescopic shaft of the electric push rod is connected to the clamping plate 304. A drive motor for driving the rollers 305 to rotate is provided in the clamping plate 304.

[0052] In the above embodiment, the lifting channel 102 in the processing table 1 is inclined to the side away from the feeding channel 101 and a discharge ramp 103 is provided on the outside of the processing table 1 at the end of the discharge ramp 103.

[0053] After the workpiece enters the clamping drive box 3, the two clamping plates 304 are driven to move closer to each other by an electric push rod, and then the workpiece is clamped by rollers 305. At this time, the rollers 305 are in a stationary state, which facilitates clamping. After processing, the clamping drive box 3 is lowered to a position flush with the right side of the unloading ramp 103 by an electric slide rail 9. The rotating side plate 302 is driven to be horizontal by a servo motor 303. The rollers 305 driven by the components inside the clamping plate 304 move the workpiece to one side of the rotating side plate 302, and the workpiece completes the automatic unloading process, avoiding safety hazards.

[0054] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention.

[0055] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A visually protected laser engraving device, comprising a processing table (1), characterized in that... : The processing table (1) has a feeding channel (101) for feeding on one side of its interior, and a pre-treatment component is provided in the feeding channel (101). The pre-treatment component can blow air on the workpiece as it slides down. The processing table (1) has a lifting channel (102) in the middle, and a lifting clamping drive box (3) is installed in the lifting channel (102). The clamping drive box (3) is provided with a clamping unloading component. Two sliders (10) are installed on the top of the processing table (1), and a mounting frame (12) is installed between the sliders (10). A horizontally movable mounting plate (14) is installed at the front end of the mounting frame (12). An engraving head (15) is fixedly installed at the front end of the mounting plate (14), and the mounting plate (15) is fixedly installed at the front end of the mounting plate (14). 14) An air duct (16) is installed on the side of the engraving head (15) at the front end; a protective cover (17) is provided on the top of the processing table (1), and the protective cover (17) covers the slider (10) and the mounting bracket (12). Openings (18) are provided on both sides of the top of the protective cover (17), and a filter plate (20) is installed at the opening (18) on the top of the protective cover (17). A second fan (19) is installed on the top of the protective cover (17). A door (22) is provided at the front end of the protective cover (17). A filter glass (2201) is installed at the front end of the door (22), and a heat insulation glass (2202) is installed at the rear end of the door (22) behind the filter glass (2201). The end of the feeding channel (101) is connected to the lifting channel (102). A waste bin (4) is installed at the bottom of the lifting channel (102). A clamping drive box (3) is provided above the waste bin (4). Electric slide rails (9) for driving the clamping drive box (3) to lift are installed on the front and rear walls of the lifting channel (102). Lifting blocks (301) inserted into the electric slide rails (9) are installed on the front and rear sides of the clamping drive box (3). The side wall of the clamping drive box (3) away from the feeding channel (101) is a rotating side plate (302). A servo motor (303) is installed on the clamping drive box (3), and the output shaft of the servo motor (303) is connected to the rotating shaft of the rotating side plate (302). The clamping and unloading assembly includes clamping plates (304) and rollers (305). Two clamping plates (304) are mirror-mounted in the clamping drive box (3) on the side near the rotating side plate (302). Multiple rollers (305) are rotatably mounted on the side of the clamping plates (304) that are close to each other. An electric push rod is installed on the inner wall of the clamping drive box (3), and the telescopic shaft of the electric push rod is connected to the clamping plate (304). A drive motor for driving the rollers (305) to rotate is provided in the clamping plate (304).

2. The laser engraving device with visual protection according to claim 1, characterized in that: The top of the processing table (1) is equipped with a drive belt one (11) for driving the slider (10) to move back and forth, and the top of the mounting frame (12) is equipped with a drive belt two (13) for driving the mounting plate (14) to move laterally.

3. The laser engraving device with visual protection according to claim 2, characterized in that: The top of the air outlet pipe (16) passes through the protective cover (17) and is connected to the air outlet of the second fan (19). The air outlet pipe (16) is located inside the protective cover (17) and has a telescopic pipe section.

4. The laser engraving device with visual protection according to claim 3, characterized in that: The pretreatment components include an adsorption plate (5), a perforated plate (6), a blower (7), and an air guide box (8). The perforated plate (6) is installed in the bottom wall of the feeding channel (101), the adsorption plate (5) is installed at the bottom of the perforated plate (6), the air guide box (8) is installed in the top wall of the feeding channel (101), and the blower (7) is installed on the side wall of the air guide box (8) away from the feeding channel (101). An air inlet channel (104) connected to the air inlet of the blower (7) is opened on the side wall of the processing table (1).

5. The laser engraving device with visual protection according to claim 4, characterized in that: The air inlet channel (104) is provided with a filter box (21), and a stop (105) for limiting the filter box (21) is installed on the inner wall of the air inlet channel (104). A replaceable filter element (2101) is installed inside the filter box (21).

6. The laser engraving device with visual protection according to claim 5, characterized in that: The lifting channel (102) inside the processing table (1) is inclined to the side away from the feeding channel (101) and a discharge ramp (103) is provided. A collection box (23) is placed at the end of the discharge ramp (103) on the outside of the processing table (1).

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