Laser cutting equipment for anti-counterfeit printing

Abstract

The invention relates to the field of laser cutting equipment, in particular to laser cutting equipment for anti-counterfeit printing, comprising a cutting mechanism which comprises a rack, a sliding rail mounted on the rack, a first sliding block mounted on the sliding rail, a laser assembly and an air box mounted on the first sliding block, a first guide pipe connected to the air box, and a second guide pipe connected to the first guide pipe; an air pump is connected to the end, away from the air box, of the first guide pipe, a spray head is connected to the air pump, a dust collection assembly is arranged at the top of the end, away from the spray head, of the first sliding block, a second guide pipe is connected to the dust collection assembly, and the end, away from the dust collection assembly, of the second guide pipe is connected with a dust collection head; the dedusting mechanism comprises a driving assembly arranged on the first sliding block, the position, needing anti-counterfeit printing, of the steel can be cleaned through the dedusting mechanism, the cleanliness of the position needing anti-counterfeit label printing is guaranteed, and dust is prevented from affecting the printing precision.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting equipment, and particularly to a laser cutting equipment for anti-counterfeiting printing. Background Art

[0002] An anti-counterfeiting label is an identification that can be pasted, printed, transferred to the surface of a target object, the packaging of the target object or the accessories of the target object, and has anti-counterfeiting features and identification methods. By adopting specific anti-counterfeiting technologies, consumers can easily identify the authenticity of products.

[0003] Steel is widely used in many fields such as construction, machinery manufacturing, and automobile manufacturing, and usually has a relatively high value, making it easy to become a target of counterfeiting. By printing anti-counterfeiting labels, it is possible to effectively prevent steel products from being counterfeited by lawbreakers, protecting the economic interests and market position of enterprises.

[0004] When printing anti-counterfeiting labels on steel, a laser cutting equipment is required. The laser cutting equipment can achieve high-precision cutting and engraving, and can process tiny, delicate and complex patterns and characters on the surface of steel. These patterns and characters are difficult to imitate, thus improving the anti-counterfeiting performance of the anti-counterfeiting label.

[0005] In the prior art, due to the relatively high reflectivity of steel, when printing steel, it is necessary to print in a closed and dim environment to reduce the reflectivity of steel. However, in this environment, the dust generated by the laser cutting equipment during printing is very difficult to discharge. Although a dust suction device can be used for adsorption in the prior art, if the dust is not completely adsorbed and the steel adheres to dust easily during the transportation process, especially when the positions of printing anti-counterfeiting labels on different steels are different. If the dust on the steel is not cleaned in time, it will have interference effects such as reflection and scattering on the laser, making the laser unable to act on the steel surface completely according to the predetermined path and energy distribution, reducing the effective utilization rate of the laser, resulting in uneven edges of the printed patterns or characters, decreased precision, and even missing or blurred patterns. If the dust suction device is directly set at the position of the laser head, although it can effectively remove dust at the printing position, the dust suction head is relatively close to the printing position, not only affected by the high temperature of the laser head and easily damaged, but also interfering with the normal flow and covering effect of the shielding gas, causing oxygen, nitrogen, etc. in the air to mix into the printing area of the laser head, resulting in defects such as pores and inclusions, reducing the accuracy of the printed anti-counterfeiting marks, while a relatively long distance has a poor treatment effect.

[0006] Therefore, a laser cutting equipment for anti-counterfeiting printing is proposed. Summary of the Invention

[0007] In view of the above or the existing technology, although a dust suction device can be used for adsorption in the existing technology, if the dust is not completely adsorbed and the steel is easily adhered with dust during the transportation process, especially when the positions of anti-counterfeiting labels printed on different steels are different. If the dust on the steel is not cleaned in time, it will have interference effects such as reflection and scattering on the laser, causing the laser to not act on the steel surface completely according to the predetermined path and energy distribution, reducing the effective utilization rate of the laser, resulting in uneven edges of the printed patterns or characters, decreased precision, and even missing or blurred patterns. If the dust suction device is directly set at the position of the laser head, although it can effectively remove dust at the printing position, the dust suction head is relatively close to the printing position, not only affected by the high temperature of the laser head and easily damaged, but also interfering with the normal flow and covering effect of the shielding gas, causing oxygen, nitrogen, etc. in the air to mix into the printing area of the laser head, resulting in defects such as porosity and inclusion, reducing the accuracy of the printed anti-counterfeiting mark. And if the distance is too far, the treatment effect is poor. Therefore, the present invention is proposed.

[0008] Therefore, the object of the present invention is to provide a laser cutting device for anti-counterfeiting printing.

[0009] To solve the above technical problems, the present invention provides the following technical solutions: including, A cutting mechanism, which includes a frame. A slide rail is installed on the frame. A first slider is installed on the slide rail. A laser assembly and an air box are installed on the first slider. A first conduit is connected to the air box. One end of the first conduit away from the air box is connected to an air pump. A nozzle is connected to the air pump. A dust suction assembly is arranged at the top of the end of the first slider away from the nozzle. A second conduit is connected to the dust suction assembly. One end of the second conduit away from the dust suction assembly is connected to a dust suction head; A dust removal mechanism, which includes a driving component arranged on the first slider. A switching component for switching the gas sprayed by the nozzle is connected to the driving component. The switching component is connected to the air pump through a third conduit. A sliding component for controlling the movement of the dust suction head is arranged on the first slider.

[0010] As a preferred scheme of the laser cutting device for anti-counterfeiting printing of the present invention, wherein: the driving component includes a cylinder installed on the top of the first slider. The output end of the cylinder is connected to a support block. One side of the support block is connected to a first cross plate. A second slider is arranged on the top of the first slider. A first inclined groove is formed on the second slider. One end of the first cross plate away from the support block extends into the first inclined groove and is connected to a first driving block.

[0011] As a preferred solution of the laser cutting device for anti-counterfeiting printing of the present invention, wherein: the switching component includes a limiting plate connected to the bottom of the second slider, a through opening is provided on the limiting plate, notches are provided on both the first conduit and the third conduit, and the notches are matched with the limiting plate.

[0012] As a preferred solution of the laser cutting device for anti-counterfeiting printing of the present invention, wherein: the driving component further includes a second cross plate connected to the side of the support block away from the second slider, a third slider is arranged on the top of the first slider, the third slider is located on the side of the support block away from the second slider, a second inclined groove is provided on the third slider, the side of the second cross plate away from the support block extends into the second inclined groove and is connected with a second driving block, and the bottom of the third slider is connected with a third driving block.

[0013] As a preferred solution of the laser cutting device for anti-counterfeiting printing of the present invention, wherein: a concave frame is installed on the top of the first slider, an auxiliary groove is provided on the concave frame, two auxiliary blocks are slidably arranged inside the auxiliary groove, and one ends of the two auxiliary blocks both penetrate out of the auxiliary groove and are respectively fixedly connected with the second slider and the third slider.

[0014] As a preferred solution of the laser cutting device for anti-counterfeiting printing of the present invention, wherein: the sliding component includes a fixing plate arranged on the top of the first slider, a telescopic rod is connected to the side of the fixing plate close to the support block, a first spring is arranged inside the telescopic rod, one end of the first spring is fixedly connected with the inner wall of the telescopic rod, and the other end of the telescopic rod is connected with the extending end of the telescopic rod, the end of the telescopic rod away from the fixing plate is connected with a fourth slider, and the fourth slider is connected with a dust suction head through a support rod.

[0015] As a preferred solution of the laser cutting device for anti-counterfeiting printing of the present invention, wherein: the sliding component further includes a fifth slider arranged on the fourth slider, a first plane is arranged on the fifth slider, and a second plane is arranged on the third driving block.

[0016] As a preferred solution of the laser cutting device for anti-counterfeiting printing of the present invention, wherein: the sliding component further includes a groove opened on the fourth slider, the end of the fifth slider away from the third slider extends into the groove and is connected with a second spring, and the end of the second spring away from the fifth slider is fixedly connected with the inner wall of the bottom of the groove.

[0017] As a preferred solution of the laser cutting device for anti-counterfeiting printing of the present invention, wherein: the sliding component further includes a first inclined surface arranged on the fifth slider, a limiting frame is installed on the top of the first slider, a second inclined surface is arranged on the limiting frame, and a third inclined surface is arranged on the third driving block.

[0018] As a preferred embodiment of the laser cutting device for anti-counterfeiting printing of the present invention, wherein: the driving component further includes a vertical groove formed in the third slider.

[0019] Beneficial effects of the laser cutting device for anti-counterfeiting printing of the present invention: Through the setting of the driving component, the switching component and the sliding component can be driven to operate. In the initial state, the driving component can first drive the third conduit to eject air and the dust suction head to approach the position where the anti-counterfeiting label needs to be printed. The air pump extracts air through the third conduit to blow air at the position where the anti-counterfeiting label needs to be printed, blowing away the dust at the position where the anti-counterfeiting label needs to be printed. At the same time, when blowing air, the dust is directly absorbed by the dust suction head, avoiding the problem that the scattered dust affects the laser emitted by the laser cutting device. At the same time, when the cleaning is completed and the driving component continues to drive the switching component and the sliding component to operate, at this time, the dust suction head automatically resets, so that the dust suction head is far away from the laser component. Thus, when the laser component performs anti-counterfeiting printing on the steel, it will not affect the printing of the anti-counterfeiting label on the surface of the steel by the laser component of the laser device due to the too-close distance between the dust suction head and the laser head. At the same time, it also avoids the problem that the high temperature of the laser head affects the dust suction head. And during laser printing, the protective gas inside the protective gas tank can be sprayed onto the printing position through the first conduit and the nozzle, ensuring the printing accuracy. At the same time, the generated debris can be directly absorbed by the dust suction head. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of the laser cutting part of the laser cutting device for anti-counterfeiting printing; Figure 2 It is a schematic overall structural diagram of the dust removal mechanism of the laser cutting device for anti-counterfeiting printing; Figure 3 It is a schematic structural diagram of the switching component of the laser cutting device for anti-counterfeiting printing; Figure 4 It is a schematic diagram of the right half-section of the driving component and the structural diagram of the sliding component of the laser cutting device for anti-counterfeiting printing Figure 5 It is a schematic partial sectional structural diagram of the sliding component of the laser cutting device for anti-counterfeiting printing.

[0022] In the figure: 1. Cutting mechanism; 11. Frame; 12. Slide rail; 13. First slider; 131. Concave frame; 132. Auxiliary groove; 133. Auxiliary block; 14. Laser component; 15. Air box; 16. Air pump; 17. Sprayer; 18. Dust suction component; 19. Second conduit; 110. Dust suction head; 111. First conduit; 2. Dust removal mechanism; 21. Driving component; 211. Cylinder; 212. Support block; 213. First horizontal plate; 214. Second slider; 215. First inclined groove; 216. First driving block; 217. Second horizontal plate; 218. Third slider; 219. Second inclined groove; 2110. Second driving block; 2111. Third driving block; 2112. Vertical groove; 22. Switching component; 221. Limit plate; 222. Through port; 223. Notch; 23. Third conduit; 24. Sliding component; 241. Fixed plate; 242. Expansion rod; 243. First spring; 244. Fourth slider; 245. Support rod; 246. Fifth slider; 247. First plane; 248. Second plane; 249. Groove; 2410. Second spring; 2411. First inclined plane; 2412. Limit frame; 2413. Second inclined plane; 2414. Third inclined plane. Detailed implementation mode

[0023] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation mode of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0024] Example 1, referring to Figures 1 to 5 , which is the first embodiment of the present invention. This embodiment provides a laser cutting device for anti-counterfeiting printing, which can achieve the effect of printing anti-counterfeiting marks on steel. It includes a cutting mechanism 1, which includes a frame 11. A slide rail 12 is installed on the frame 11. A first slider 13 is installed on the slide rail 12. A laser component 14 and an air box 15 are installed on the first slider 13. A first conduit 111 is connected to the air box 15. One end of the first conduit 111 far from the air box 15 is connected to an air pump 16. A sprayer 17 is connected to the air pump 16. A dust suction component 18 is arranged at the top of the end of the first slider 13 far from the sprayer 17. A second conduit 19 is connected to the dust suction component 18. One end of the second conduit 19 far from the dust suction component 18 is connected to a dust suction head 110. A dust removal mechanism 2 is installed on the top of the first slider 13. The dust removal mechanism 2 includes a driving component 21 arranged on the first slider 13. A switching component 22 for switching the gas sprayed by the sprayer 17 is connected to the driving component 21. The switching component 22 is connected to the air pump 16 through a third conduit 23. A sliding component 24 for controlling the movement of the dust suction head 110 is arranged on the first slider 13; Among them, the laser component 14 and the dust suction component 18 are very mature existing technologies and will not be elaborated here; Wherein, a filter screen is provided at one end of the third conduit 23 away from the nozzle 17, so that the air extracted by the nozzle 17 through the third conduit 23 is relatively clean air, increasing the processing effect on the steel. Through the setting of the driving component 21, the switching component 22 and the sliding component 24 can be driven to operate. In the initial state, the driving component 21 can first drive the third conduit 23 to eject air and the suction head 110 to approach the place where the anti-counterfeiting label needs to be printed. The air pump 16 extracts air through the third conduit 23 and blows air at the place where the anti-counterfeiting label needs to be printed, blowing away the dust at the place where the anti-counterfeiting label needs to be printed. At the same time, when blowing air, the dust is directly absorbed by the suction head 110, avoiding the problem that the scattered dust affects the laser emitted by the laser cutting equipment. At the same time, when the cleaning is completed, when the driving component 21 continues to drive the switching component 22 and the sliding component 24 to operate, at this time, the suction head 110 automatically resets, so that the suction head 110 is far away from the laser component 14. Furthermore, when the laser component 14 performs anti-counterfeiting printing on the steel, it will not affect the printing of the anti-counterfeiting label on the surface of the steel by the laser component 14 of the laser equipment because the distance between the suction head 110 and the laser head is too close. At the same time, it also avoids the problem that the high temperature of the laser head affects the suction head 110. And during laser printing, the protective gas inside the protective gas tank 15 can be sprayed onto the printing place through the first conduit 111 and the nozzle 17, ensuring the printing accuracy. At the same time, the generated debris can be directly absorbed by the suction head 110.

[0025] In this embodiment, a conventional laser printing device is provided. When the steel to be printed is transported to a suitable position, the first slider 13 is driven to move by the slide rail 12, so that the first slider 13 drives the laser component 14 to move to a suitable position. Then, by turning on the air pump 16, the air pump 16 extracts the protective gas inside the gas tank 15 through the first conduit 111 and sprays it through the nozzle 17 at the laser emission place, so that the laser component 14 performs anti-counterfeiting label printing on the steel, and the dust generated during the printing process is absorbed by the dust suction component 18 through the second conduit 19 and the dust suction head 110.

[0026] Embodiment 2, referring to Figures 1 to 5 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a laser cutting device for anti-counterfeiting printing, which can achieve the effect of cleaning the place to be printed. The driving component 21 includes a cylinder 211 fixedly installed on the top of the first slider 13. The output end of the cylinder 211 is fixedly connected with a support block 212. One side of the support block 212 is fixedly connected with a first cross plate 213. A second slider 214 is arranged on the top of the first slider 13. A first inclined slot 215 is opened on the second slider 214. One end of the first cross plate 213 away from the support block 212 extends into the first inclined slot 215 and is fixedly connected with a first driving block 216.

[0027] Further, the switching component 22 includes a limiting plate 221 connected to the bottom of the second slider 214. A through opening 222 is formed in the limiting plate 221. Notches 223 are formed in both the first conduit 111 and the third conduit 23. The notches 223 are matched with the limiting plate 221. In the initial state, the limiting plate 221 blocks the notches 223 of the first conduit 111 and the third conduit 23. As the limiting plate 221 moves, the through opening 222 of the limiting plate 221 corresponds to the positions of the two notches 223 in sequence, so that the nozzle 17 can spray different gases.

[0028] Further, the driving component 21 further includes a second cross plate 217 connected to the side of the support block 212 away from the second slider 214. A third slider 218 is arranged on the top of the first slider 13. The third slider 218 is located on the side of the support block 212 away from the second slider 214. A second inclined groove 219 is formed in the third slider 218. The side of the second cross plate 217 away from the support block 212 extends into the second inclined groove 219 and is connected with a second driving block 2110. The bottom of the third slider 218 is connected with a third driving block 2111.

[0029] Further, a concave frame 131 is installed on the top of the first slider 13. An auxiliary groove 132 is formed in the concave frame 131. Two auxiliary blocks 133 are slidably arranged inside the auxiliary groove 132. One ends of the two auxiliary blocks 133 penetrate out of the auxiliary groove 132 and are respectively fixedly connected with the second slider 214 and the third slider 218. The arrangement of the auxiliary groove 132 and the two auxiliary blocks 133 ensures that the second slider 214 and the third slider 218 can only move linearly, which is convenient for the second slider 214 to drive the limiting plate 221 to switch the gas sprayed by the nozzle 17, and for the third slider 218 to drive the dust suction head 110 to move through the sliding component 24.

[0030] Further, the sliding component 24 includes a fixing plate 241 arranged on the top of the first slider 13. One side of the fixing plate 241 close to the support block 212 is connected with a telescopic rod 242. A first spring 243 is arranged inside the telescopic rod 242. The first spring 243 is used for the reset of the extending end of the telescopic rod 242, and when the extending end of the telescopic rod 242 resets, a certain buffer is formed. One end of the first spring 243 is fixedly connected with the inner wall of the telescopic rod 242, and the other end of the telescopic rod 242 is connected with the extending end of the telescopic rod 242. The end of the telescopic rod 242 away from the fixing plate 241 is connected with a fourth slider 244. The fourth slider 244 is connected with the dust suction head 110 through a support rod 245.

[0031] Further, the sliding assembly 24 further includes a fifth slider 246 provided on the fourth slider 244. A first plane 247 is provided on the fifth slider 246, and a second plane 248 is provided on the third driving block 2111. The positions of the first plane 247 and the second plane 248 correspond to each other, so that when the third driving block 2111 moves, it can squeeze the first plane 247 on the fifth slider 246 through the second plane 248, thereby driving the fifth slider 246 to move.

[0032] Further, the sliding assembly 24 further includes a groove 249 opened on the fourth slider 244. One end of the fifth slider 246 away from the third slider 218 extends into the groove 249 and is connected to a second spring 2410. One end of the second spring 2410 away from the fifth slider 246 is fixedly connected to the inner wall of the bottom of the groove 249.

[0033] Further, the sliding assembly 24 further includes a first inclined surface 2411 provided on the fifth slider 246. A limiting frame 2412 is installed on the top of the first slider 13. A second inclined surface 2413 is provided on the limiting frame 2412, and a third inclined surface 2414 is provided on the third driving block 2111.

[0034] Further, the driving assembly 21 further includes a vertical groove 2112 opened on the third slider 218. The setting of the vertical groove 2112 enables the second driving block 2110 to continue to rise and move inside the vertical groove 2112 when the second driving block 2110 is located at the connection of the second inclined groove 219 and the vertical groove 2112, without driving the third slider 218 to move, reducing wear.

[0035] The remaining structures are the same as those in Embodiment 1.

[0036] When it is necessary to print an anti-counterfeiting label on the steel, by opening the cylinder 211, the cylinder 211 drives the support block 212 to rise. The support block 212 drives the first cross plate 213 and the second cross plate 217 connected thereto to rise. The first cross plate 213 and the second cross plate 217 drive the first driving block 216 and the second driving block 2110 connected thereto to rise, so that the first driving block 216 and the second driving block 2110 respectively squeeze the groove surfaces of the first inclined groove 215 on the second slider 214 and the second inclined groove 219 on the third slider 218, thereby making the second slider 214 and the third slider 218 approach each other; when the second slider 214 approaches, it drives the limiting plate 221 to move, so that the through hole 222 on the limiting plate 221 corresponds to the notch 223 on the third conduit 23, and thus the nozzle 17 can inhale the outside air through the third conduit 23 and the through hole 222 and spray it to the place where the anti-counterfeiting label needs to be printed to remove dust from the place where the anti-counterfeiting label is printed; Moreover, the third slider 218 drives the third driving block 2111 to move. The third driving block 2111 presses the first plane 247 on the fifth slider 246 through the second plane 248 thereon, thereby causing the fifth slider 246 to move towards the laser assembly 14. The fifth slider 246 drives the fourth slider 244 to move. The fourth slider 244 drives the extended end of the telescopic rod 242 to pass through the barrel portion. The extended end of the telescopic rod 242 drives the second spring 2410 to stretch. At the same time, the fourth slider 244 drives the dust suction head 110 to move towards the laser assembly 14 through the support rod 245. When air is ejected, the dust suction head 110 approaches the position where the anti-counterfeiting label needs to be printed, so that the dust blown away on the steel surface is directly absorbed by the dust suction head 110, preventing the dust from scattering everywhere. When the cleaning of the position where the anti-counterfeiting label needs to be printed on the steel that requires printing of the anti-counterfeiting label is completed, as the cylinder 211 continues to drive the support block 212 to rise, when the support block 212 continues to rise through the first cross plate 213, the second cross plate 217, and the first driving block 216 and the second driving block 2110 connected to the first cross plate 213 and the second cross plate 217, the first driving block 216 and the second driving block 2110 continue to drive the second slider 214 and the third slider 218 to approach each other. The second slider 214 drives the limit plate 221 to continue moving, causing the through port 222 to be misaligned with the third conduit 23, thereby causing the nozzle 17 to no longer suck in external air. Moreover, the third slider 218 continues to drive the fifth slider 246 to move through the second plane 248 of the third driving block 2111. When the first inclined surface 2411 on the fifth slider 246 comes into contact with the second inclined surface 2413 on the limit frame 2412, as the third driving block 2111 continues to drive, the fifth slider 246 moves, causing the fifth slider 246 to move into the groove 249. The fifth slider 246 presses the second spring 2410, causing the second spring 2410 to contract. When the first plane 247 of the fifth slider 246 is misaligned with the second plane 248 of the third driving block 2111, at this time, under the elastic force of the first spring 243, the extended section of the telescopic rod 242 returns to the inside of the barrel of the telescopic rod 242. The extended section of the telescopic rod 242 drives the fourth slider 244 to reset, and the fourth slider 244 drives the fifth slider 246 to reset. When the fifth slider 246 is misaligned with the second inclined surface 2413 of the limit frame 2412, at this time, under the elastic force of the second spring 2410, the fifth slider 246 automatically resets, so that the third driving block 2111 will no longer drive the fifth slider 246 to move. At the same time, when the fourth slider 244 resets, it will also drive the dust head to reset through the support rod 245, so that there is a certain distance between the dust suction head 110 and the laser module 14. Thus, when the dust suction head 110 absorbs the dust generated during the production of the printed anti-counterfeiting label, it will not affect the laser emitted by the laser module 14, nor will it be affected by the high temperature of the laser module 14, thereby preventing the dust suction head 110 from being damaged. At the same time, the second driving block 2110 is located at the connection of the second inclined groove 219 and the vertical groove 2112, so that when the second driving block 2110 continues to rise, the second driving block 2110 moves inside the vertical groove 2112 and no longer drives the third slider 218 to move, reducing wear and tear; And at this time, when the fourth slider 244 resets, as the limit plate 221 continues to move, the through hole 222 gradually corresponds to the cut position of the first conduit 111. Thus, the nozzle 17 can extract the protective gas from the inside of the gas tank 15 through the first conduit 111 and the through hole 222, causing the nozzle 17 to eject the protective gas and cooperate with the laser module 14 to print the anti-counterfeiting label on the steel; After the printing anti-counterfeiting label is completed, as the cylinder 211 drives the support block 212 to descend, the support block 212 drives the second slider 214 and the third slider 218 to reset through the first cross plate 213, the second cross plate 217, and the first drive block 216 and the second drive block 2110 connected to the first cross plate 213 and the second cross plate 217. The second slider 214 and the third slider 218 drive the limit plate 221 and the third drive block 2111 to reset respectively, so that the limit plate 221 returns to the initial state. At the same time, when the third drive block 2111 resets, when the third inclined surface 2414 on the third drive block 2111 contacts the first inclined surface 2411 on the fifth slider 246, the third inclined surface 2414 on the third drive block 2111 presses the first inclined surface 2411 on the fifth slider. First, it will drive the fourth slider 244 to move away from the cylinder 211 through the fifth slider 246. The fourth slider 244 presses the first spring 243, causing the first spring 243 to contract to a certain extent. When the elastic force of the first spring 243 is greater than the elastic force of the second spring 2410, at this time, when the third drive block 2111 continues to reset, it will press the first inclined surface 2411 on the fifth slider 246, causing the fifth slider 246 to move into the groove 249. The fifth slider 246 presses the second spring 2410, causing the second spring 2410 to contract. When the third inclined surface 2414 on the third drive block 2111 is displaced from the first inclined surface 2411 on the fifth slider 246, under the action of the elastic force of the second spring 2410, the fifth slider 246 resets, and at the same time, under the action of the elastic force of the first spring 243, the fourth slider 244 resets.

[0037] In summary, different from the above embodiments, in this embodiment, a structure for cleaning the printing area is provided, so that when laser printing an anti-counterfeiting label, dust removal can be performed on the area where the anti-counterfeiting label needs to be printed first, ensuring the cleanliness of the area where the anti-counterfeiting label needs to be printed, avoiding dust affecting the printing accuracy. At the same time, when the area where the anti-counterfeiting label needs to be printed is cleaned, the dust suction head 110 automatically resets, so that the laser component 14 will not be affected during operation, and at the same time, the dust suction head 110 will not affect the laser emitted by the laser component 14.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A laser cutting device for anti-counterfeiting printing, characterized in that: including a cutting mechanism (1), which includes a frame (11), a slide rail (12) is installed on the frame (11), a first slider (13) is installed on the slide rail (12), a laser assembly (14) and an air box (15) are installed on the first slider (13), a first conduit (111) is connected to the air box (15), one end of the first conduit (111) far from the air box (15) is connected to an air pump (16), a spray head (17) is connected to the air pump (16), a dust suction assembly (18) is arranged at the top of one end of the first slider (13) far from the spray head (17), a second conduit (19) is connected to the dust suction assembly (18), and one end of the second conduit (19) far from the dust suction assembly (18) is connected to a dust suction head (110); a dust removal mechanism (2), which includes a driving assembly (21) arranged on the first slider (13), a switching assembly (22) for switching the gas sprayed by the spray head (17) is connected to the driving assembly (21), the switching assembly (22) is connected to the air pump (16) through a third conduit (23), and a sliding assembly (24) for controlling the movement of the dust suction head (110) is arranged on the first slider (13).

2. The laser cutting device for anti-counterfeiting printing according to claim 1, characterized in that: The driving assembly (21) includes a cylinder (211) installed on the top of the first slider (13), an output end of the cylinder (211) is connected to a support block (212), a first cross plate (213) is connected to one side of the support block (212), a second slider (214) is arranged on the top of the first slider (13), a first inclined slot (215) is formed in the second slider (214), and one end of the first cross plate (213) far from the support block (212) extends into the first inclined slot (215) and is connected to a first driving block (216).

3. The laser cutting device for anti-counterfeiting printing according to claim 2, characterized in that: The switching assembly (22) includes a limiting plate (221) connected to the bottom of the second slider (214), a through opening (222) is formed in the limiting plate (221), notches (223) are formed in both the first conduit (111) and the third conduit (23), and the notches (223) are matched with the limiting plate (221).

4. The laser cutting device for anti-counterfeiting printing according to claim 3, characterized in that: The driving assembly (21) further includes a second cross plate (217) connected to one side of the support block (212) far from the second slider (214), a third slider (218) is arranged on the top of the first slider (13), the third slider (218) is located on one side of the support block (212) far from the second slider (214), a second inclined slot (219) is formed in the third slider (218), and one side of the second cross plate (217) far from the support block (212) extends into the second inclined slot (219) and is connected to a second driving block (2110), and a third driving block (2111) is connected to the bottom of the third slider (218).

5. The laser cutting device for anti-counterfeiting printing according to claim 4, characterized in that: A concave frame (131) is installed on the top of the first slider (13). An auxiliary groove (132) is formed in the concave frame (131). Two auxiliary blocks (133) are slidably arranged inside the auxiliary groove (132). One ends of the two auxiliary blocks (133) penetrate out of the auxiliary groove (132) and are respectively fixedly connected to the second slider (214) and the third slider (218).

6. The laser cutting device for anti-counterfeiting printing according to claim 5, characterized in that: The sliding assembly (24) includes a fixing plate (241) arranged on the top of the first slider (13). One side of the fixing plate (241) close to the support block (212) is connected with a telescopic rod (242). A first spring (243) is arranged inside the telescopic rod (242). One end of the first spring (243) is fixedly connected to the inner wall of the telescopic rod (242), and the other end of the telescopic rod (242) is connected to the extended end of the telescopic rod (242). The end of the telescopic rod (242) far from the fixing plate (241) is connected with a fourth slider (244). The fourth slider (244) is connected with a dust suction head (110) through a support rod (245).

7. The laser cutting device for anti-counterfeiting printing according to claim 6, wherein: The sliding assembly (24) further includes a fifth slider (246) arranged on the fourth slider (244). A first plane (247) is arranged on the fifth slider (246). A second plane (248) is arranged on the third driving block (2111).

8. The laser cutting device for anti-counterfeiting printing according to claim 7, wherein: The sliding assembly (24) further includes a groove (249) formed in the fourth slider (244). One end of the fifth slider (246) far from the third slider (218) extends into the groove (249) and is connected with a second spring (2410). The end of the second spring (2410) far from the fifth slider (246) is fixedly connected to the bottom inner wall of the groove (249).

9. The laser cutting device for anti-counterfeiting printing according to claim 8, characterized in that: The sliding assembly (24) further includes a first inclined surface (2411) arranged on the fifth slider (246). A limiting frame (2412) is installed on the top of the first slider (13). A second inclined surface (2413) is arranged on the limiting frame (2412). A third inclined surface (2414) is arranged on the third driving block (2111).

10. The laser cutting device for anti-counterfeiting printing according to claim 9, characterized in that: The driving assembly (21) further includes a vertical groove (2112) formed in the third slider (218).

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