A laser precision cutting device for aluminum foil processing

Abstract

The application discloses a kind of laser fine cutting equipment for aluminum foil processing, including aluminum foil laser fine cutting device, for laser fine cutting to aluminum foil;Rotary device is set to the bottom of the aluminum foil laser fine cutting device, and rotary device can rotate;Intercepting device is set to the rotary output end of the rotary device, and the reflected light of laser is captured and intercepted by intercepting device through rotary device and aluminum foil laser fine cutting device cooperation;Cleaning device is set to the laser head bottom of the aluminum foil laser fine cutting device, and cleaning device can clean the lens of the laser head of aluminum foil laser fine cutting device;Summarized above, the device can improve safety, prolong equipment service life, and improve product production quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser precision cutting, in particular to a laser precision cutting equipment for aluminum foil processing. BACKGROUND

[0002] In the process of aluminum foil laser precision cutting, the laser irradiation to the surface of the aluminum foil will produce strong reflected light; the traditional interception device often cannot respond to the generation of reflected light in time, which leads to the fact that the reflected light is easy to cause damage to external facilities and devices, such as damage to surrounding optical elements and electronic equipment; the transmission efficiency of part of the interception structure is low, single gear transmission or simple mechanical structure is adopted, and it is difficult to realize rapid and accurate adjustment of the interception position through reasonable conversion of speed and torque, which leads to poor reflected light interception effect, frequent failure and loss of equipment caused by reflected light, which not only shortens the service life of the equipment, but also increases the maintenance and replacement.

[0003] When laser cutting aluminum foil, metal particles and cutting generated mist will mix to form pollutants, which will cause serious pollution to the laser lens: the existing cleaning device mostly adopts fixed cleaning structure, which cannot realize dynamic cleaning of the surface of the lens in all directions, and metal particles and mist are easy to accumulate on the surface of the lens, which affects the stability of the laser light path; part of the cleaning method such as continuous gas injection or manual wiping, due to the insufficient cleaning strength, leads to the fact that debris is left, and the debris accumulation may reflect the laser, which not only reduces the laser cutting precision, but also may cause damage to the equipment itself, leading to unstable aluminum foil cutting quality, which is difficult to meet the high-precision processing demand. SUMMARY

[0004] The purpose of the present application is to provide a laser precision cutting equipment for aluminum foil processing to solve the problems raised in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a laser precision cutting equipment for aluminum foil processing, comprising: an aluminum foil laser precision cutting device, a rotating device, an interception device and a cleaning device, the aluminum foil laser precision cutting device is used for laser precision cutting of aluminum foil; the rotating device is arranged at the bottom of the aluminum foil laser precision cutting device, and the rotating device can rotate; the interception device is arranged at the rotating output end of the rotating device, and the interception device can capture and intercept the reflected light of the laser through the cooperation of the rotating device and the aluminum foil laser precision cutting device; the cleaning device is arranged at the bottom of the laser head of the aluminum foil laser precision cutting device, and the cleaning device can clean the lens of the laser head of the aluminum foil laser precision cutting device.

[0006] Preferably, in order to drive the intercepting device, the rotating device comprises a rotating rod, a first gear, a bridge gear, a second gear and a first brake motor, the rotating rod is arranged at the bottom center of the aluminum foil laser cutting device through two first bearing seats; the first gear is arranged at the center of the outer wall of the rotating rod; the bridge gear is arranged at the right end of the first gear through a second bearing seat, and the bridge gear and the first gear are meshed with each other; the second gear is arranged at the right end of the bridge gear through a third bearing seat, and the second gear and the bridge gear are meshed with each other; the first brake motor is arranged at one end of the third bearing seat, and the output end of the first brake motor is fixedly connected with one end of the second gear; the first brake motor rotates to drive the second gear, and the second gear drives the first gear through the bridge gear to rotate the rotating rod.

[0007] Preferably, in order to intercept and capture the laser reflection light, the intercepting device comprises a U-shaped rod, a sliding groove, a rack, a long rod, a short rod, a connecting rod, a capture plate, a third gear and a second brake motor, the U-shaped rod is arranged at both ends of the rotating rod, and the outer wall of the U-shaped rod is provided with a sliding groove on both sides; the rack is arranged on the inner wall of the U-shaped rod; the long rod is embedded in one of the sliding grooves, and the long rod can be limitedly moved along one of the sliding grooves; the short rod is embedded in the other sliding groove, and the short rod can be limitedly moved along the other sliding groove; the connecting rod is provided with two, which are arranged at one end of the rack and the short rod respectively; the capture plate is arranged at the bottom surface of the two connecting rods; the third gear is arranged at one end of the top surface of the capture plate through a fourth bearing seat, and the third gear and the rack are meshed with each other; the second brake motor is arranged at one end of the fourth bearing seat, and the output end of the second brake motor is fixedly connected with one end of the third gear; the second brake motor rotates to drive the third gear to move on the surface of the rack, so as to drive the capture plate to be limitedly moved in the U-shaped rod.

[0008] Preferably, in order to support the cleaning components in the cleaning device, the cleaning device comprises a first connecting rod, a second connecting rod, an annular bearing platform, a moving groove and an annular rack, the first connecting rod is arranged at the bottom of the laser head of the aluminum foil laser cutting device; the second connecting rod is arranged at one end of the laser head of the aluminum foil laser cutting device; the annular bearing platform is arranged at the bottom surface of the first connecting rod and the second connecting rod, and the top surface and the bottom surface of the outer wall of the annular bearing platform are provided with moving grooves; the annular rack is arranged on the inner wall of the first connecting rod.

[0009] Preferably, in order to clean the laser lens, the cleaning device further comprises a moving block, a connecting plate, a sliding block, a fourth gear, a DC motor, a vortex air pump and an air knife, the moving block is embedded in the top moving groove and can move along the top moving groove, the connecting plate is arranged on the bottom surface of the moving block, the sliding block is arranged on one end close to the connecting plate and is embedded in the bottom ring-shaped gear rack and can move along the bottom moving groove, the fourth gear is arranged on the top center of the connecting plate through a bearing and is meshed with the ring-shaped gear rack, the DC motor is arranged on one end of the bearing, the output end of the DC motor is fixedly connected with one end of the fourth gear, the vortex air pump is arranged on the bottom surface of the other end of the connecting plate, and the air knife is arranged on the top surface of the other end of the connecting plate and is connected with the vortex air pump through an air pipe; the DC motor rotates to drive the fourth gear to move along the surface of the ring-shaped gear rack, so that the air knife moves along with the connecting plate.

[0010] Compared with the prior art, the present application has the following advantages:

[0011] 1. The present application can accurately capture and intercept the reflected light generated during the laser cutting of aluminum foil through the linkage of the infrared sensor, the rotating device and the interception device. Specifically, when the laser cutting of aluminum foil in the aluminum foil laser precision cutting device generates reflected light, the infrared sensor rapidly detects and drives the first brake motor to rotate. The rotating device adopts a gear transmission structure of a large gear driving a small gear, uses the gear ratio relationship to change the speed and torque, so that the first gear obtains a faster speed, can more quickly and accurately adjust the position of the interception device, drives the U-shaped rod to rotate and adjust the position through gear transmission, and the second brake motor drives the capture plate to move, so that the reflected light is efficiently captured and intercepted. This design effectively avoids the damage of the reflected light to external facilities and devices, reduces the failure and loss of equipment caused by the reflected light, significantly prolongs the service life of the equipment, and reduces the frequency of equipment maintenance and replacement.

[0012] 2. The unique design of the cleaning device can effectively solve the pollution problem of the laser lens caused by the mixed metal particle mist in the laser cutting process. The DC motor drives the fourth gear to move on the ring-shaped gear rack, drives the air knife to rotate and clean along the outer wall of the ring-shaped bearing platform, and the air knife sprays high-pressure gas in the form of high-frequency pulse to accurately blow off the debris on the surface of the laser lens, prevents the debris from affecting the laser light path, avoids the damage of the equipment caused by the reflection of the debris, and ensures that the laser is always focused on the aluminum foil with high precision, so as to greatly improve the precision and quality of the laser cutting. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present application;

[0014] Figure 2 It is a structural schematic diagram of the rotating device of the present application;

[0015] Figure 3 The schematic diagram of the position structure of the intercepting device of the present application;

[0016] Figure 4 The schematic diagram of the enlarged structure at A of the present application;

[0017] Figure 5 The schematic diagram of the enlarged structure at B of the present application;

[0018] Figure 6 The schematic diagram of the cross-sectional structure in the present application; Figure 6

[0019] Figure 7 The schematic diagram of the cleaning device structure of the present application;

[0020] Figure 8 The schematic diagram of the enlarged structure at C of the present application;

[0021] Figure 9 The schematic diagram of the cross-sectional structure in the present application; Figure 8

[0022] Figure 10 The schematic diagram of the cleaning assembly of the cleaning device of the present application.

[0023] In the figure: 1, aluminum foil laser cutting device, 2, rotating device, 3, intercepting device, 4, cleaning device, 21, rotating rod, 22, first gear, 23, over-bridge gear, 24, second gear, 25, first brake motor, 31, U-shaped rod, 32, sliding groove, 33, rack, 34, long rod, 35, short rod, 36, connecting rod, 37, catching plate, 38, third gear, 39, second brake motor, 41, first connecting rod, 42, second connecting rod, 43, annular bearing platform, 44, moving groove, 45, annular rack, 46, moving block, 47, connecting plate, 48, sliding block, 49, fourth gear, 410, DC motor, 411, vortex air pump, 412, air knife. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0025] Please refer to Figures 1-10 ​​The application provides a laser precision cutting equipment for aluminum foil processing, which comprises an aluminum foil laser precision cutting device 1, a rotating device 2, an intercepting device 3 and a cleaning device 4. The aluminum foil laser precision cutting device 1 is used for laser precision cutting of aluminum foil. The rotating device 2 is arranged at the bottom of the aluminum foil laser precision cutting device 1 and can rotate. The intercepting device 3 is arranged at the rotating output end of the rotating device 2 and can capture and intercept reflected light of laser through cooperation of the rotating device 2 and the aluminum foil laser precision cutting device 1. Laser cutting of aluminum foil can cause laser reflection, which can damage external facilities. Therefore, the infrared sensor of the aluminum foil laser precision cutting device 1 is used for detecting reflected laser, so that the infrared sensor drives the rotating device 2 and the intercepting device 3 to capture and intercept reflected light, thereby improving safety and prolonging the service life of the equipment. The cleaning device 4 is arranged at the bottom of the laser head of the aluminum foil laser precision cutting device 1 and can clean the lens of the laser head of the aluminum foil laser precision cutting device 1. Laser cutting of aluminum foil can produce mist formed by mixed metal particles. The outlet direction of the air knife 412 is at a certain angle with the direction of the laser lens, and the air knife sprays high-pressure gas in the form of high-frequency pulse to accurately blow away debris and prevent debris accumulation from affecting subsequent cutting or causing equipment damage due to reflected laser. Meanwhile, the gas sprayed by the air knife can also play a role in assisting cooling of the cutting area, reducing aluminum foil thermal deformation and improving the cutting quality of laser on aluminum foil.

[0026] As a preferred solution, further, as Figure 2As shown, the rotating device 2 comprises a rotating rod 21, a first gear 22, a bridge gear 23, a second gear 24 and a first brake motor 25. The rotating rod 21 is arranged at the center of the bottom of the aluminum foil laser cutting device 1 through two first bearing seats and is used for transmission. The first gear 22 is sleeved and arranged at the center of the outer wall of the rotating rod 21 and is designed as a pinion. The bridge gear 23 is arranged at the right end of the first gear 22 through a second bearing seat and is in mesh with the first gear 22. The bridge gear 23 can drive the first gear 22 and the second gear 24. The second gear 24 is arranged at the right end of the bridge gear 23 through a third bearing seat and is in mesh with the bridge gear 23. The second gear 24 is designed as a gear wheel. The first brake motor 25 is arranged at one end of the third bearing seat. The output end of the first brake motor 25 is fixedly connected with one end of the second gear 24. The first brake motor 25 has a self-locking function and can keep the position fixed when the motor stops running, preventing the position of the U-shaped rod 31 from changing due to external force and the like and having a certain supporting force on the U-shaped rod 31. The first brake motor 25 rotates to drive the second gear 24 to drive the rotating rod 21 to rotate through the bridge gear 23. The first gear 22 and the second gear 24 realize multi-rotation through the gear wheel driving the pinion. The number of teeth of the gear transmission changes the rotating speed and the torque, so that the rotating speed of the first gear 22 is faster.

[0027] The rotating device 2 reflects the light path positioning: the first brake motor 25 is started to drive the second gear 24 to rotate clockwise. The second gear 24 drives the first gear 22 to rotate at a high speed through the bridge gear 23 to realize the rotating speed increase. The first gear 22 drives the rotating rod 21 to rotate quickly around the center shaft of the bottom of the aluminum foil laser cutting device 1, so that the intercepting device 3 connected to both ends of the rotating rod rotates synchronously in a ring shape to cover the possible path of the reflected light above the cutting area. After the infrared sensor is triggered, the motor 25 adjusts the rotating angle according to the position data of the reflected light, so that the U-shaped rod 31 of the intercepting device 3 is aligned with the direction of the reflected light.

[0028] As a preferred solution, further, Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the intercepting device 3 comprises: a U-shaped rod 31, a sliding groove 32, a rack 33, a long rod 34, a short rod 35, a connecting rod 36, a capture plate 37, a third gear 38 and a second brake motor 39, the U-shaped rod 31 is arranged at both ends of the rotating rod 21, the outer wall of the U-shaped rod 31 is provided with the sliding groove 32 on both sides, and the U-shaped rod 31 can move to wrap around the whole device by 180 degrees; the rack 33 is arranged on the inner wall of the U-shaped rod 31; the long rod 34 is embedded in one sliding groove 32, and the long rod 34 can move within the limit of one sliding groove 32; the short rod 35 is embedded in the other sliding groove 32, and the short rod 35 can move within the limit of the other sliding groove 32, and the cooperation of the long rod 34 and the short rod 35 plays a role in fixedly supporting the capture plate 37; the connecting rod 36 is two in number and is arranged at one end of the rack 34 and the short rod 35 respectively, and the two connecting rods 36 play a role in connecting and fixing the long rod 34, the short rod 35 and the capture plate 37; the capture plate 37 is arranged on the bottom surface of the two connecting rods 36, the capture plate 37 is made of stainless steel, has a high melting point and can intercept reflected light of the laser; the third gear 38 is arranged on one end of the top surface of the capture plate 37 through a fourth bearing seat, and the third gear 38 is in mesh with the rack 33; the second brake motor 39 is arranged at one end of the fourth bearing seat, and the output end of the second brake motor 39 is connected and fixed with one end of the third gear 38, the first brake motor 25 has a self-locking function, can keep the position fixed when the motor stops running, and prevents the position of the capture plate 37 from changing due to external force and other factors; the second brake motor 39 rotates to drive the third gear 38 to move on the surface of the rack 33, thereby driving the capture plate 37 to move within the limit of the U-shaped rod 31.

[0029] The reflected light dynamic capture of the intercepting device 3: the rotating rod 21 of the rotating device 2 completes the position adjustment in the horizontal direction; the second brake motor 39 drives the third gear 38 to move horizontally on the rack 33 of the inner wall of the U-shaped rod 31, drives the capture plate 37 to move vertically to the rotating direction along the sliding groove 32; when the U-shaped rod 31 rotates to the position directly above the reflected light path, the motor 39 pushes the capture plate 37 to move downward, so that the bottom surface of the capture plate 37 is cut into the reflected light path, and the reflected light is absorbed or reflected through physical shielding to avoid the leakage of the reflected light to damage the equipment; the motors 25 and 39 both have a self-locking function, keep the capture plate 37 fixed after positioning, and ensure the stability of the interception.

[0030] As a preferred solution, further, Figure 7 and Figure 8As shown, the cleaning device 4 comprises a first connecting rod 41, a second connecting rod 42, an annular bearing platform 43, a moving groove 44 and an annular rack 45. The first connecting rod 41 is arranged at the bottom of the laser head of the aluminum foil laser precision cutting device 1 and is used to support the annular bearing platform 43. The second connecting rod 42 is arranged at one end of the laser head of the aluminum foil laser precision cutting device 1 and is used to support the annular bearing platform 43. The annular bearing platform 43 is arranged at the bottom surface of the first connecting rod 41 and the second connecting rod 42. The top surface and the bottom surface of the outer wall of the annular bearing platform 43 are both provided with the moving groove 44, and the two moving grooves 44 are annularly attached to the annular bearing platform 43. The annular rack 45 is arranged on the inner wall of the first connecting rod 41. The structure is used to support the cleaning assembly to clean the laser lens and has a certain supporting effect.

[0031] As a preferred solution, further, as shown in Figure 8 、 Figure 9 and Figure 10 , the cleaning device 4 further comprises a moving block 46, a connecting plate 47, a sliding block 48, a fourth gear 49, a direct current motor 410, a vortex air pump 411 and an air knife 412. The moving block 46 is embedded in the top moving groove 44 and can be limitedly moved along the top moving groove 44. The connecting plate 47 is arranged on the bottom surface of the moving block 46. The sliding block 48 is arranged at one end close to the connecting plate 47 and is embedded in the bottom annular rack 45. The sliding block 48 can be limitedly moved along the bottom moving groove 44. The moving block 46, the connecting plate 47 and the sliding block 48 are combined to fixedly support the outer wall of the annular bearing platform 43 and can be limitedly moved along the outer wall of the annular bearing platform 43. The fourth gear 49 is arranged on the top center of the connecting plate 47 through a bearing and is engaged with the annular rack 45. The direct current motor 410 is arranged at one end of the bearing. The output end of the direct current motor 410 is fixedly connected with one end of the fourth gear 49. The vortex air pump 411 is arranged on the bottom surface of the other end of the connecting plate 47. The air knife 412 is arranged on the top surface of the other end of the connecting plate 47 and is connected with the vortex air pump 411 through an air pipe. The combination of the air knife 412 and the vortex air pump 411 can clean the mixed mist of metal particles formed on the surface of the laser lens, thereby improving the precision and quality of the laser. The direct current motor 410 rotates to drive the fourth gear 49 to be limitedly moved on the surface of the annular rack 45, so as to drive the air knife 412 to be limitedly moved through the connecting plate 47.

[0032] The cleaning device 4 mirror surface dynamic blowing: the DC motor 410 drives the fourth gear 49 to make clockwise circular motion on the ring gear 45, drives the connecting plate 47 to rotate along the moving groove 44 of the outer wall of the ring-shaped bearing platform 43; the connecting plate 47 realizes double-track limiting of the up and down moving groove 44 through the moving block 46 and the sliding block 48, ensures the motion stability; the vortex air pump 411 delivers high-pressure gas to the air knife 412 through the air pipe, the air knife sprays gas in the form of high-frequency pulse, the angle is aligned with the laser head mirror surface; the air knife 412 rotates 360° with the connecting plate 47, covers the whole circumference of the lens, blows off the metal particles, molten mist and other pollutants generated in the cutting process, prevents the accumulation of debris from affecting the laser focusing accuracy.

[0033] The detailed connection means is a known technology in the art, and the working principle and process are mainly introduced below. Specifically, when the laser in the aluminum foil laser precision cutting device 1 cuts the aluminum foil, reflected light of the laser is detected by the infrared sensor in the aluminum foil laser precision cutting device 1 and transmitted to the first brake motor 25 to drive the second gear 24 to make the first gear 22 drive the U-shaped rod 31 to rotate and adjust the position of the reflected light. At the same time, the second brake motor 39 drives the third gear 38 to drive the capture plate 37 to capture and intercept the reflected light, thereby prolonging the service life of the equipment and improving the safety. Long-time laser cutting of the aluminum foil will cause the hot-melt aluminum foil to produce metal particles mixed with mist, which will adhere to the laser lens, causing the accumulation of laser debris to affect subsequent cutting or reflected light to damage the equipment. The DC motor 410 drives the fourth gear 49 to drive the air knife 412 to rotate and clean the laser lens, and can clean the laser lens in all directions, improve the laser cutting precision and quality, and thus improve the product quality.

[0034] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A laser precision cutting device for aluminum foil processing, comprising: an aluminum foil laser precision cutting device (1) for laser precision cutting of aluminum foil; a rotating device (2) arranged at the bottom of the aluminum foil laser precision cutting device (1) and capable of rotating; an intercepting device (3) arranged at the rotating output end of the rotating device (2) and capable of capturing and intercepting reflected light of the laser through cooperation of the rotating device (2) and the aluminum foil laser precision cutting device (1); a cleaning device (4) arranged at the bottom of the laser head of the aluminum foil laser precision cutting device (1) and capable of cleaning the lens of the laser head of the aluminum foil laser precision cutting device (1); the rotating device (2) comprises: a rotating rod (21) arranged at the center of the bottom of the aluminum foil laser precision cutting device (1) through two first bearing seats; a first gear (22) arranged at the center of the outer wall of the rotating rod (21) in a sleeve manner; a bridge gear (23) arranged at the right end of the first gear (22) through a second bearing seat, and the bridge gear (23) and the first gear (22) are in mesh with each other; a second gear (24) arranged at the right end of the bridge gear (23) through a third bearing seat, and the second gear (24) and the bridge gear (23) are in mesh with each other; a first brake motor (25) arranged at one end of the third bearing seat, and the output end of the first brake motor (25) is connected and fixed with one end of the second gear (24); the intercepting device (3) comprises: a U-shaped rod (31) arranged at both ends of the rotating rod (21), and a sliding groove (32) is formed at the left and right sides of the outer wall of the U-shaped rod (31); a rack (33) arranged at the inner wall of the U-shaped rod (31); a long rod (34) embedded in one of the sliding grooves (32), and the long rod (34) is capable of moving in position along one of the sliding grooves (32); a short rod (35) embedded in the other of the sliding grooves (32), and the short rod (35) is capable of moving in position along the other of the sliding grooves (32); two connecting rods (36) arranged at one end of the rack (33) and the short rod (35) respectively; a capture plate (37) arranged at the bottom surface of the two connecting rods (36); a third gear (38) arranged at one end of the top surface of the capture plate (37) through a fourth bearing seat, and the third gear (38) and the rack (33) are in mesh with each other; a second brake motor (39) arranged at one end of the fourth bearing seat, and the output end of the second brake motor (39) is connected and fixed with one end of the third gear (38).

2. The laser precision cutting apparatus for aluminum foil processing according to claim 1, characterized by: The first brake motor (25) rotates to drive the second gear (24) to drive the first gear (22) to drive the rotating rod (21) to rotate through the bridge gear (23).

3. The laser precision cutting apparatus for aluminum foil processing according to claim 2, characterized by: The second brake motor (39) rotates to drive the third gear (38) to move on the surface of the rack (33), thereby driving the capture plate (37) to move in position in the U-shaped rod (31).

4. The laser precision cutting apparatus for aluminum foil processing according to claim 3, characterized by: the cleaning device (4) comprises: a first connecting rod (41) arranged at the bottom of the laser head of the aluminum foil laser precision cutting device (1); Second connecting rod (42) is arranged in the laser head one end of the aluminum foil laser precision cutting device (1); Annular bearing platform (43) is arranged in the bottom surface of the first connecting rod (41) and the second connecting rod (42), the top surface and the bottom surface of the outer wall of the annular bearing platform (43) are provided with moving grooves (44); Annular rack (45) is arranged in the inner wall of the first connecting rod (41).

5. The laser precision cutting apparatus for processing aluminum foil according to claim 4, characterized in that: The cleaning device (4) further comprises: Moving block (46) is embedded in the top moving groove (44) of the annular bearing platform (43), and the moving block (46) can be limitedly moved along the top moving groove (44); Connecting plate (47) is arranged on the bottom surface of the moving block (46); Sliding block (48) is arranged on one end close to the connecting plate (47), the sliding block (48) is embedded in the bottom annular rack (45), and the sliding block (48) can be limitedly moved along the bottom moving groove (44); Fourth gear (49) is arranged on the top center of the connecting plate (47) through a bearing, and the fourth gear (49) is engaged with the annular rack (45); DC motor (410) is arranged on one end of the bearing, and the output end of the DC motor (410) is connected and fixed with one end of the fourth gear (49); Vortex air pump (411) is arranged on the other end bottom surface of the connecting plate (47); Air knife (412) is arranged on the other end top surface of the connecting plate (47), and the air knife (412) is connected with the vortex air pump (411) through the air pipe.

6. The laser precision cutting apparatus for processing aluminum foil according to claim 5, characterized by: The DC motor (410) rotates to drive the fourth gear (49) to limitly move on the surface of the annular rack (45), so as to drive the air knife (412) to limitly move through the connecting plate (47).

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