Laser welding machine for beer can production line

Abstract

The present application relates to beer can production and processing technology field, concretely for the laser welding machine for beer can production line, including processing platform, the processing platform is installed with mounting bracket, the mounting bracket is installed with mechanical arm, the mechanical arm far from the one end of mounting bracket is installed with laser welding gun, the processing platform end is fixed with controller, the processing platform upper end is installed with rotary clamp, the processing platform is provided with flue gas treatment assembly, anti-overflow assembly, the flue gas treatment assembly includes the processing box fixed on the side of processing platform, the processing box upper end is fixed with the draft tube, the draft tube far from the one end of processing box is fixed with the horn pipe, the processing box inside rotationally connected with the pivot, through flue gas treatment assembly can handle the flue gas generated in the welding process, realize the purification of flue gas, can effectively reduce the pollution caused by flue gas to the surrounding environment, reduce the fine metal particles and harmful gas in flue gas are inhaled by the operating personnel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of beer can production and processing, in particular to a laser welding machine based on a beer can production line. BACKGROUND

[0002] The beer storage tank is an important equipment in the beer production chain and plays a key role in modern brewing process. Its core function is to provide stable temporary storage space for filtered beer, maintain beer quality through precise temperature control and oxygen isolation, etc. The tank body is usually made of food-grade stainless steel material, which not only has good corrosion resistance, but also effectively avoids chemical reaction between the tank body and beer, ensuring the pure flavor of beer.

[0003] The beer can production process needs to be completed through the production line, and a series of operations such as plate cutting, surface cleaning, tank rounding, head stamping, longitudinal seam welding, and surface polishing are carried out in turn to complete the production of beer cans. In the whole production process, welding is extremely important. Through the laser welding machine, welding path planning and welding parameter adjustment can be automatically completed according to the pre-set program without frequent manual intervention. The whole process is more intelligent and efficient.

[0004] During the welding process of the laser welding machine, high temperature causes metal vaporization to produce smoke. The smoke contains metal particles such as chromium and nickel, as well as volatile organic compounds such as formaldehyde and benzene series. These pollutants will pollute the surrounding working environment, and long-term exposure of workers to a polluted environment can easily inhale smoke into the body, affecting their health. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the shortcomings of the prior art, the present application provides a laser welding machine based on a beer can production line, which has the advantage of being able to treat the smoke generated during the welding process, purify the smoke, effectively reduce the pollution of the smoke to the surrounding environment, and reduce the inhalation of fine metal particles and harmful gases in the smoke by workers.

[0007] (II) Technical solutions

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a laser welding machine based on a beer can production line, comprising a machining table, an installation frame is installed on the machining table, a mechanical arm is installed on the installation frame, a laser welding gun is installed at one end of the mechanical arm away from the installation frame, a controller is fixed at the end of the machining table, a rotary clamp is installed on the upper end of the machining table, and a smoke treatment assembly and an anti-spillage assembly are arranged on the machining table.

[0009] The flue gas treatment assembly comprises a treatment box fixed on the side of the processing table, a flow guide pipe is fixed on the upper end of the treatment box, a horn pipe is fixed on the end of the flow guide pipe away from the treatment box, a rotating shaft is rotatably connected in the treatment box, an impeller one is fixed on the rotating shaft, a driving member is arranged between the rotating shaft and the processing table, a treatment member is arranged in the treatment box, and a turning assembly is arranged on the treatment box.

[0010] The driving member drives the rotating shaft to rotate, the rotating shaft drives the impeller one to rotate, the flue gas enters the treatment box and contacts with the treatment member, and the driving member drives the anti-overflow assembly to work.

[0011] Preferably, the driving member comprises a driving motor fixed on the side of the processing table, a belt pulley one is fixed on the output end of the driving motor, one end of the rotating shaft extends out of the treatment box and is fixed with a belt pulley two, and the belt pulley one and the belt pulley two are drivingly connected through a transmission belt one.

[0012] Preferably, the treatment member comprises a metal filter screen installed in the treatment box, an activated carbon filter screen is installed at the lower end of the metal filter screen, and a polytetrafluoroethylene filter membrane is installed at the lower end of the activated carbon filter screen.

[0013] Preferably, the anti-overflow assembly comprises a blowing box fixed on the side of the processing table, a gas conveying pipe is fixed on the upper end of the blowing box, an anti-overflow cover is fixed on the end of the gas conveying pipe away from the blowing box, the anti-overflow cover is sleeved on the horn pipe, a gas conveying member is arranged in the anti-overflow cover, and a gas blowing member is arranged on the blowing box.

[0014] Preferably, the gas conveying member comprises a gas conveying channel formed in the anti-overflow cover, the gas conveying channel is communicated with the gas conveying pipe, a shunt pipe is fixed on the inner wall of the anti-overflow cover, a plurality of barrier screens are fixed in the shunt pipe, and the gas outlet end of the shunt pipe is inclined towards the position of the horn pipe.

[0015] Preferably, the gas blowing member comprises a driving shaft rotatably connected in the blowing box, and an impeller two is fixed on the driving shaft.

[0016] Preferably, the output end of the driving motor is fixed with a belt pulley three, one end of the driving shaft extends out of the blowing box and is fixed with a belt pulley four, and the belt pulley three and the belt pulley four are drivingly connected through a transmission belt two.

[0017] Preferably, the turning assembly comprises a mounting shaft rotatably connected in the treatment box, and a rotating disc is fixed on the end of the mounting shaft.

[0018] Preferably, one end of the mounting shaft away from the rotating disc extends out of the treatment box and is fixed with a bevel gear one, the output end of the driving motor is fixed with a bevel gear two engaged with the bevel gear one.

[0019] Preferably, the rotating disc is provided with a resisting block, the lateral surface of the resisting block is fixed with a movable block, the movable block slides into the inside of a movable slot, the surface of the rotating disc is provided with the movable slot, the inside of the movable slot is fixed with a reset spring, and the reset spring is fixedly connected with the movable block.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] 1、The present application, when welding, through the stretching or bending of the flow guide pipe, the position of the horn pipe is directed to the position of the laser welding gun, then the driving motor is started, the driving motor drives the belt pulley one to rotate, under the action of the transmission belt one, the belt pulley two rotates, thereby driving the rotating shaft to rotate, the impeller one rotates, the inside of the processing box generates negative pressure, the smoke generated in the welding process enters the inside of the processing box through the horn pipe and the flow guide pipe in turn, the smoke entering the inside of the processing box passes through the metal filter screen, the activated carbon filter screen and the polytetrafluoroethylene filter membrane in turn, the metal filter screen can intercept large particle size metal debris generated in the welding process, the activated carbon filter screen is used for capturing volatile organic compounds, including harmful gases such as formaldehyde and benzene series, and the polytetrafluoroethylene filter membrane can intercept ultrafine particulate matter, including nanoscale metal oxide dust, thereby reducing the dispersion of ultrafine particles, the smoke generated in the welding process is treated in turn, the smoke is purified, and the purified smoke is discharged, so that the pollution caused by the smoke to the surrounding environment can be effectively reduced, and small metal particles and harmful gases in the smoke can be reduced to be inhaled by the workers;

[0022] 2、At the same time, when the horn pipe collects the smoke generated in the welding process, the anti-overflow cover can inhibit the dispersion range of the smoke, and in the process of driving the impeller one to generate negative pressure in the inside of the processing box to collect the smoke, the belt pulley three is driven to rotate, under the action of the transmission belt two and the belt pulley four, the driving shaft rotates, the driving shaft drives the impeller two to rotate, the air flow rate in the inside of the air blowing box is accelerated, wind power is generated, the wind power flows out through the air conveying pipe, enters the inside of the anti-overflow cover, and is finally sent out through the shunt pipe, the air entering the shunt pipe further reduces the air flow rate through the barrier screen, and then is sent out, the slow wind power sent out is inclined to the position of the horn pipe, so that the negative pressure gradient is formed in the inside of the anti-overflow cover, the dispersion of the smoke to the edge of the anti-overflow cover is reduced, the collection efficiency of the horn pipe to the smoke is improved, thereby further reducing the pollution caused by the smoke to the air environment and the amount of the smoke inhaled by the workers, and the air blowing to the horn pipe mixes with the smoke, so that the temperature of the smoke can be effectively reduced, the heat accumulated during the treatment of the smoke can be reduced, and the treatment of the smoke by the whole treatment assembly is more favorable;

[0023] 3. Simultaneously, as the drive motor drives the impeller to create negative pressure inside the treatment box for flue gas collection, it also drives the second bevel gear to rotate. The rotation of the second bevel gear causes the first bevel gear to rotate, which in turn causes the mounting shaft to rotate. The rotation of the mounting shaft drives the rotating disk to rotate, which in turn drives the contact block to rotate. During the reciprocating rotation of the contact block, when it comes into contact with the activated carbon filter mesh, the mesh moves upward. This upward movement causes the activated carbon particles inside the activated carbon filter to agitate. By agitating the activated carbon particles, the static saturation state of the original adsorption sites is broken, and the microporous structure that has not been fully contacted in the deep layers is activated, allowing the activated carbon particles to fully contact the flue gas. This effectively improves the capture efficiency of harmful gases and odor molecules such as formaldehyde and benzene compounds, thereby further reducing the pollution of the air environment caused by flue gas and reducing the amount of flue gas inhaled by workers. At the same time, the agitation of the activated carbon particles can accelerate heat dissipation, avoiding the problem of reduced adsorption performance of activated carbon particles due to local temperature accumulation, which would otherwise lead to poor treatment effect of the entire flue gas treatment component. Attached Figure Description

[0024] Figure 1 This is a first overall schematic diagram of the device of the present invention.

[0025] Figure 2 This is a second overall schematic diagram of the device of the present invention.

[0026] Figure 3 This is a disassembly diagram of the filter element and the treatment box in the device of the present invention.

[0027] Figure 4 This is a schematic diagram of the rotating shaft and impeller of the device of the present invention.

[0028] Figure 5 The device of the present invention Figure 2 Enlarged diagram of point A in the middle.

[0029] Figure 6 The device of the present invention Figure 3 Enlarged diagram of point B in the middle.

[0030] Figure 7 This is a cross-sectional view of the overflow shield in the device of the present invention.

[0031] Figure 8 This is a schematic diagram of the internal structure of the shunt tube in the device of the present invention.

[0032] Figure 9 This is a schematic diagram of the drive shaft and impeller II in the device of the present invention.

[0033] Figure 10 This is a schematic diagram of the rotating disk and activated carbon filter screen in the device of the present invention.

[0034] Figure 11Disassembling diagram of the resisting block and the rotating disc in the device of the present application.

[0035] In the figure: 1, processing table; 11, mounting frame; 12, mechanical arm; 13, laser welding gun; 14, controller; 15, rotating clamp; 2, flue gas treatment assembly; 21, treatment box; 22, flow guide pipe; 23, horn pipe; 24, rotating shaft; 25, impeller one; 26, driving member; 261, driving motor; 262, pulley one; 263, pulley two; 264, transmission belt one; 27, treatment member; 271, metal filter screen; 272, activated carbon filter screen; 273, polytetrafluoroethylene filter membrane; 3, anti-overflow assembly; 31, air blowing box; 32, air conveying pipe; 33, anti-overflow cover; 34, air conveying member; 341, air conveying channel; 342, shunt pipe; 343, barrier screen; 35, air blowing member; 351, driving shaft; 352, impeller two; 353, pulley three; 354, pulley four; 355, transmission belt two; 4, turnover assembly; 41, mounting shaft; 42, rotating disc; 421, resisting block; 422, movable block; 423, movable slot; 424, return spring; 43, bevel gear one; 44, bevel gear two. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a 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 the other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the present application.

[0037] Embodiment 1

[0038] Please refer to Figures 1 to 6 For the first embodiment of the present application, a technical solution is provided:

[0039] The utility model provides a laser welding machine based on beer can production line, including processing table 1, the mounting frame 11 is installed on processing table 1, and the mounting frame 11 can be translated on processing table 1, so that the welding of different positions of beer can can be carried out, the mechanical arm 12 is installed on the mounting frame 11, and the laser welding gun 13 is installed at the end of the mechanical arm 12 away from the mounting frame 11, the position of laser welding gun 13 can be controlled by the mechanical arm 12, and it is more convenient to carry out multi-angle welding to beer can, the controller 14 is fixed at the end of processing table 1, the rotary clamp 15 is installed on the upper end of processing table 1, and the rotary clamp 15 is used to clamp beer can and can drive beer can to rotate, so as to realize the welding of the edge of beer can, the smoke treatment assembly 2 and the anti -overflow subassembly 3 are arranged on processing table 1, the smoke treatment assembly 2 is used to collect and handle the smoke generated during welding, so as to reduce the floating of smoke everywhere, and the anti -overflow subassembly 3 can reduce the overflow of smoke when the smoke treatment assembly 2 collects smoke, improve the collection effect of smoke,

[0040] The smoke treatment assembly 2 includes the processing box 21 fixed on the side of processing table 1, the blowhole is formed in the lower end of processing box 21, the blowhole is used for the circulation of air, the flow guide pipe 22 is fixed on the upper end of processing box 21, the horn pipe 23 is fixed at the end of flow guide pipe 22 away from processing box 21, the flow guide pipe 22 is a metal bellows, the metal bellows has certain supporting force and can be bent to adjust the position of horn pipe 23, so that it faces the welding position, so as to improve the effect of smoke collection, the rotating shaft 24 is rotatably connected in the processing box 21, the impeller one 25 is fixed on the rotating shaft 24, the rotating shaft 24 drives the impeller one 25 to rotate, so as to make the processing box 21 inside produce negative pressure, realize the collection of smoke, the driving part 26 is arranged between the rotating shaft 24 and processing table 1, the processing part 27 is arranged in the processing box 21, the processing box 21 is provided with the turnover assembly 4, and the turnover assembly 4 is used to make the activated carbon particles in the activated carbon filter screen 272 turn over to improve the filtering effect of activated carbon particles on smoke,

[0041] The driving part 26 drives the rotating shaft 24 to rotate, and the rotating shaft 24 drives the impeller one 25 to rotate, so that the smoke enters the processing box 21 and contacts the processing part 27, and the driving part 26 can work to make the anti -overflow subassembly 3 work.

[0042] The driving member 26 comprises a driving motor 261 fixed on the side of the processing table 1, the output end of the driving motor 261 is fixed with a belt pulley one 262, one end of the rotating shaft 24 extends out of the processing box 21 and is fixed with a belt pulley two 263, the belt pulley one 262 and the belt pulley two 263 are drivingly connected through a transmission belt one 264, the belt pulley one 262 is driven to rotate by the driving motor 261, when the belt pulley one 262 rotates, the belt pulley two 263 is driven to rotate under the action of the transmission belt one 264, so as to drive the rotating shaft 24 to rotate, the impeller one 25 is driven to rotate, the impeller one 25 rotates, and the negative pressure is generated in the inside of the processing box 21, the smoke generated in the welding process enters the inside of the processing box 21 through the horn pipe 23 and the flow guide pipe 22 in sequence.

[0043] The processing member 27 comprises a metal filter screen 271 installed in the inside of the processing box 21, the metal filter screen 271 can intercept large-particle-size metal scraps generated in the welding process, the metal filter screen 271 is installed with an activated carbon filter screen 272 at the lower end, the activated carbon filter screen 272 is composed of an external frame, a screen sheet and activated carbon particles, two screen sheets are symmetrically arranged in the frame, and the activated carbon particles are filled between the two screen sheets, the activated carbon filter screen 272 is used for capturing volatile organic compounds, including harmful gases such as formaldehyde and benzene series, and eliminating irritating odors generated in the welding process, the activated carbon filter screen 272 is installed with a polytetrafluoroethylene filter membrane 273 at the lower end, the polytetrafluoroethylene filter membrane 273 can intercept ultrafine particulate matters, including nano-sized metal oxide dust, so as to reduce the diffusion of the ultrafine particles, the processing box 21 is detachably connected with the metal filter screen 271, the activated carbon filter screen 272 and the polytetrafluoroethylene filter membrane 273, and can be regularly disassembled for cleaning or replacement, so as to ensure the treatment effect of the smoke.

[0044] In the use process, when the beer cans are welded, the rotating clamp 15 is used to clamp the beer cans, then the position of the mounting rack 11 is adjusted according to the position to be welded, then the position of the laser welding gun 13 is adjusted through the mechanical arm 12, so as to face the welding position, then the laser welding gun 13 is started, and the rotating clamp 15 is started, so as to drive the beer cans to rotate at a uniform speed, and the welding of the beer cans is realized.

[0045] In the welding, the position of the trumpet tube 23 is made to face the position of the laser welding gun 13 by stretching or bending the flow guide pipe 22, then the driving motor 261 is started, the belt pulley one 262 is driven to rotate by the driving motor 261, the belt pulley two 263 is driven to rotate by the belt one 264 when the belt pulley one 262 rotates, so as to drive the rotating shaft 24 to rotate, the impeller one 25 is driven to rotate, the impeller one 25 is driven to rotate, the negative pressure is generated in the processing box 21, the smoke generated in the welding process enters the processing box 21 through the trumpet tube 23 and the flow guide pipe 22 in turn, the smoke entering the processing box 21 passes through the metal filter screen 271, the activated carbon filter screen 272 and the polytetrafluoroethylene filter membrane 273 in turn, the metal debris with large particle size generated in the welding process can be intercepted by the metal filter screen 271, the volatile organic compounds including harmful gases such as formaldehyde and benzene series can be captured by the activated carbon filter screen 272, the irritating odor generated in the welding can be eliminated, the ultrafine particles including nano metal oxide dust can be intercepted by the polytetrafluoroethylene filter membrane 273, so as to reduce the diffusion of the ultrafine particles, the smoke generated in the welding process is treated in turn, the smoke is purified, the purified smoke is discharged, the pollution caused by the smoke to the surrounding environment can be effectively reduced, and the fine metal particles and harmful gases in the smoke can be reduced to be inhaled by the workers.

[0046] Embodiment 2

[0047] Please refer to Figure 2 、 Figure 3 、 Figure 5 、 Figure 7 、 Figure 8 、 Figure 9 , the second embodiment of the application, which is different from the first embodiment is:

[0048] The anti-overflow assembly 3 comprises a blowing box 31 fixed on the side of the machining table 1, the lower end of the blowing box 31 is provided with a ventilation hole for air circulation, the upper end of the blowing box 31 is fixed with a gas conveying pipe 32, the gas conveying pipe 32 is a metal bellows pipe, which has a certain supporting force and can be bent so that the anti-overflow cover 33 can move with the position of the horn pipe 23 and face the welding position, the end of the gas conveying pipe 32 away from the blowing box 31 is fixed with the anti-overflow cover 33, the anti-overflow cover 33 can limit the dispersion range of the smoke, the anti-overflow cover 33 is sleeved on the horn pipe 23, the inside of the anti-overflow cover 33 is provided with a gas sending part 34, the blowing box 31 is provided with a blowing part 35, when the horn pipe 23 collects the smoke generated during the welding process, the anti-overflow cover 33 can inhibit the dispersion range of the smoke, and the air flow rate in the blowing box 31 is accelerated by the blowing part 35 to generate wind power, the wind power flows out through the gas conveying pipe 32, enters the inside of the anti-overflow cover 33, and is finally sent out through the gas sending part 34, the sent wind power is inclined towards the position of the horn pipe 23, so that a negative pressure gradient is formed in the anti-overflow cover 33, so that the smoke enters the inside of the horn pipe 23 more quickly, the collection efficiency of the horn pipe 23 for the smoke is improved, and at the same time, the air blown to the horn pipe 23 is mixed with the smoke, so that the temperature of the smoke can be effectively reduced, the heat accumulated during the treatment of the smoke can be reduced, and the treatment of the smoke by the whole treatment assembly is more beneficial.

[0049] The gas sending part 34 comprises a gas sending channel 341 opened in the inside of the anti-overflow cover 33, the gas sending channel 341 is communicated with the gas conveying pipe 32, a shunt pipe 342 is fixed on the inner wall of the anti-overflow cover 33, the shunt pipe 342 is a plurality of and is arranged in a circle, a plurality of barrier meshes 343 are fixed in the inside of the shunt pipe 342 to form a porous damping structure, when the airflow passes through the plurality of barrier meshes 343, the kinetic energy of the air is converted into heat energy, so that the flow rate of the air blown out of the shunt pipe 342 is reduced, the airflow blown out of the shunt pipe 342 does not affect the negative pressure at the pipe opening of the horn pipe 23, and the slow airflow blown out of the shunt pipe 342 can make the smoke at the edge enter the inside of the horn pipe 23 better, and the gas outlet end of the shunt pipe 342 is inclined towards the position of the horn pipe 23.

[0050] The blowing part 35 comprises a driving shaft 351 rotatably connected in the inside of the blowing box 31, a second impeller 352 is fixed on the driving shaft 351, the driving shaft 351 drives the second impeller 352 to rotate to accelerate the air flow rate in the inside of the blowing box 31 so that the air is blown out.

[0051] The output end of the driving motor 261 is fixed with a belt pulley three 353, one end of a driving shaft 351 extends out of the blowing box 31 and is fixed with a belt pulley four 354, the belt pulley three 353 and the belt pulley four 354 are transmissionally connected through a transmission belt two 355, when the driving motor 261 works, the belt pulley three 353 is driven to rotate, the belt pulley three 353 rotates under the transmission of the transmission belt two 355, so that the belt pulley four 354 rotates, thereby driving the driving shaft 351 to rotate and providing power for the driving shaft 351.

[0052] In use, when the overflow cover 33 collects the smoke generated in the process of welding the horn pipe 23, it can inhibit the range of smoke dispersion, and in the process of driving the impeller one 25 to generate negative pressure in the treatment box 21 to collect the smoke, the belt pulley three 353 is driven to rotate, the belt pulley three 353 rotates under the transmission of the transmission belt two 355, so that the belt pulley four 354 rotates, thereby driving the driving shaft 351 to rotate, the driving shaft 351 rotates to drive the impeller two 352 to rotate, accelerates the air flow rate in the blowing box 31, generates wind power, the wind power flows out through the gas conveying pipe 32, enters the inside of the overflow cover 33, and finally is sent out through the gas sending piece 34, the sent wind power is obliquely directed to the position of the horn pipe 23, so that a negative pressure gradient is formed in the inside of the overflow cover 33, the smoke dispersion from the edge of the overflow cover 33 is reduced, so that the smoke is better introduced into the inside of the horn pipe 23, the collection efficiency of the horn pipe 23 on the smoke is improved, thereby further reducing the pollution of the smoke to the air environment and reducing the amount of smoke inhaled by the operation personnel, at the same time, the air blown to the horn pipe 23 is mixed with the smoke, so that the temperature of the smoke can be effectively reduced, the heat accumulated in the process of treating the smoke can be reduced, and the treatment of the whole treatment assembly on the smoke is more beneficial.

[0053] The rest of the structure is the same as that of example 1.

[0054] Example 3

[0055] Please refer to Figure 1 、 Figure 5 、 Figure 10 、 Figure 11 , which is the third embodiment of the present application, which is different from the first and second embodiments:

[0056] The turnover assembly 4 comprises a mounting shaft 41 rotatably connected inside the processing box 21, which is located below the activated carbon filter screen 272, and a rotating disc 42 fixed at the end of the mounting shaft 41. The rotating disc 42 is rotated by the mounting shaft 41, and when the rotating disc 42 rotates, the contact block 421 rotates together. During the reciprocating rotation of the contact block 421, when the contact block 421 contacts the screen of the activated carbon filter screen 272, the screen is activated upward. The continuous upward movement of the screen will make the activated carbon particles inside the screen turn over, improve the capture efficiency of activated carbon particles on harmful gases such as formaldehyde, benzene series and odor molecules, and improve the filtering effect.

[0057] The end of the mounting shaft 41 away from the rotating disc 42 extends out of the processing box 21 and is fixed with a bevel gear one 43. The output end of the driving motor 261 is fixed with a bevel gear two 44 engaged with the bevel gear one 43. When the driving motor 261 works, the bevel gear two 44 rotates, which makes the bevel gear one 43 rotate, and the bevel gear one 43 rotates, which makes the mounting shaft 41 rotate, thereby providing power for the rotation of the mounting shaft 41.

[0058] The rotating disc 42 is provided with a contact block 421, which is a rubber block. When the contact block 421 made of rubber material contacts the screen of the activated carbon filter screen 272, it causes less damage to the screen than the contact block 421 made of hard metal material. The side surface of the contact block 421 is fixed with a movable block 422, which slides into the movable groove 423. The surface of the rotating disc 42 is provided with the movable groove 423, which is fixed with a return spring 424. The return spring 424 is fixedly connected with the movable block 422. When the rotating disc 42 rotates and the contact block 421 contacts the screen of the activated carbon filter screen 272, the contact block 421 is stressed to extrude the movable block 422, so that the movable block 422 moves in the movable groove 423 and extrudes the return spring 424. When the contact block 421 is separated from the screen of the activated carbon filter screen 272, the contact block 421 and the movable block 422 are reset under the action of the return spring 424. The elastic contact block 421 can better contact the screen of the activated carbon filter screen 272 to cope with the deformation of the screen caused by long-term repeated use of the activated carbon filter screen.

[0059] In use, during the process of driving motor 261 to drive impeller 25 to generate negative pressure in processing box 21 to collect flue gas, bevel gear 44 is driven to rotate, which drives bevel gear 43 to rotate, which drives mounting shaft 41 to rotate, which drives rotating disc 42 to rotate, which drives contact block 421 to rotate. During the reciprocating rotation of contact block 421, when it contacts the mesh of activated carbon filter screen 272, the mesh is activated upward. The continuous upward movement of the mesh causes the activated carbon particles inside activated carbon filter screen 272 to tumble. By tumbling the activated carbon particles, the static saturation state of the original adsorption sites can be broken, the deep and insufficiently contacted microporous structure can be activated, and the activated carbon particles can be fully contacted with flue gas, effectively improving the capture efficiency of harmful gases such as formaldehyde, benzene series and odor molecules, thereby further reducing the pollution of flue gas to the air environment and reducing the amount of flue gas inhaled by workers. At the same time, the tumbling of activated carbon particles can accelerate heat diffusion, avoid local temperature accumulation, and cause the activated carbon particles to lose adsorption performance, thereby causing the entire flue gas treatment assembly 2 to have poor treatment effect.

[0060] The remaining structure is the same as that of embodiments 1 and 2.

[0061] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Laser welding machine based on a beer can production line, comprising a processing table (1), characterized in that: The machining table (1) is provided with a mounting frame (11), the mounting frame (11) is provided with a mechanical arm (12), the mechanical arm (12) is provided with a laser welding gun (13) at the end away from the mounting frame (11), the machining table (1) is provided with a controller (14) at the end, the machining table (1) is provided with a rotary clamp (15) at the top, the machining table (1) is provided with a flue gas treatment assembly (2) and an anti-overflow assembly (3); The flue gas treatment assembly (2) comprises a treatment box (21) fixed to the side of the machining table (1), a flow guide pipe (22) fixed to the top of the treatment box (21), a horn pipe (23) fixed to the end of the flow guide pipe (22) away from the treatment box (21), a rotating shaft (24) rotatably connected in the treatment box (21), a first impeller (25) fixed to the rotating shaft (24), a driving member (26) provided between the rotating shaft (24) and the machining table (1), and a treatment member (27) provided in the treatment box (21), wherein the treatment box (21) is provided with a turnover assembly (4); The driving member (26) drives the rotating shaft (24) to rotate, the rotating shaft (24) drives the first impeller (25) to rotate, so that the flue gas enters the treatment box (21) and contacts the treatment member (27), and the driving member (26) drives the anti-overflow assembly (3) to work; The anti-overflow assembly (3) comprises a blowing box (31) fixed to the side of the machining table (1), a gas conveying pipe (32) fixed to the top of the blowing box (31), an anti-overflow cover (33) fixed to the end of the gas conveying pipe (32) away from the blowing box (31), the anti-overflow cover (33) is sleeved on the horn pipe (23), a gas conveying member (34) is arranged in the anti-overflow cover (33), and a gas blowing member (35) is arranged on the blowing box (31); The gas conveying member (34) comprises a gas conveying channel (341) formed in the anti-overflow cover (33), the gas conveying channel (341) is communicated with the gas conveying pipe (32), a shunt pipe (342) is fixed to the inner wall of the anti-overflow cover (33), a plurality of barrier meshes (343) are fixed in the shunt pipe (342), and the gas outlet end of the shunt pipe (342) is inclined towards the position of the horn pipe (23); The gas blowing member (35) comprises a driving shaft (351) rotatably connected in the blowing box (31), and the driving shaft (351) is fixed with a second impeller (352).

2. The laser welding machine for a beer can production line according to claim 1, characterized by: The driving member (26) comprises a driving motor (261) fixed to the side of the machining table (1), an output end of the driving motor (261) is fixed with a belt pulley I (262), one end of the rotating shaft (24) is fixed with a belt pulley II (263) and extends out of the treatment box (21), and the belt pulley I (262) and the belt pulley II (263) are drivingly connected through a transmission belt I (264).

3. The laser welding machine for a beer can production line according to claim 2, characterized by: The processing piece (27) comprises a metal filter screen (271) installed inside the processing box (21), a activated carbon filter screen (272) is installed at the lower end of the metal filter screen (271), and a polytetrafluoroethylene filter membrane (273) is installed at the lower end of the activated carbon filter screen (272).

4. The laser welding machine for a beer can production line according to claim 2, characterized by: The output end of the driving motor (261) is fixedly provided with a belt pulley three (353), one end of the driving shaft (351) extends out of the blowing box (31) and is fixedly provided with a belt pulley four (354), and the belt pulley three (353) and the belt pulley four (354) are drivingly connected through a transmission belt two (355).

5. The laser welder for a beer can production line according to claim 2, characterized by: The turning assembly (4) comprises a mounting shaft (41) which is rotationally connected inside the processing box (21), and a rotating disc (42) is fixedly arranged at the end of the mounting shaft (41).

6. The laser welding machine for a beer can production line according to claim 5, characterized by: One end of the mounting shaft (41) away from the rotating disc (42) extends out of the processing box (21) and is fixedly provided with a bevel gear one (43), and the output end of the driving motor (261) is fixedly provided with a bevel gear two (44) which is engaged with the bevel gear one (43).

7. The laser welding machine for a beer can production line according to claim 5, characterized by: The rotating disc (42) is provided with a resisting block (421), the side surface of the resisting block (421) is fixedly provided with a movable block (422), the movable block (422) slides into the inside of a movable groove (423), the surface of the rotating disc (42) is provided with the movable groove (423), the inside of the movable groove (423) is fixedly provided with a return spring (424), and the return spring (424) is fixedly connected with the movable block (422).

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