Welding device for steel structure machining

Abstract

The invention relates to the technical field of welding, in particular to a welding device for steel structure machining, which comprises a submerged arc welding part, a workpiece table and a rail group arranged on the workpiece table, and the submerged arc welding part is arranged on the rail group. Triple driving of the power assembly is achieved, a gear reducer is driven by a single motor, the functions of trolley walking, high-speed crushing of the crushing part and low-speed pushing of the pushing part are synchronously achieved, the number of motors is reduced, energy consumption is reduced, the structure is compact, airflow is recycled, and airflow generated by the axial flow fan is used for driving the Venturi tube set to generate negative pressure to suck scaling powder and also used for driving the Venturi tube set to generate negative pressure to suck scaling powder. Wind power is provided for the residue discharging mechanism, secondary utilization of energy is achieved, the energy efficiency of the system is improved, linkage of residue discharging and the residue cutting mechanism is achieved, the wind power of the residue discharging mechanism drives an axial fan to rotate, an eccentric wheel is driven through gear transmission, then a cutter is driven to reciprocate, mechanical linkage of residue removing and cutting is achieved, and the driving structure is simplified. Based on the multi-component linkage design, the efficiency and the integration degree are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, in particular to a welding device for processing steel structures. Background Art

[0002] Submerged arc welding is widely used in steel structure processing, especially for welding thick plates and long straight welds, such as in bridges, buildings, ships and other fields. It uses the arc to burn under the flux layer, the welding wire melts to form the weld, and the flux melts to form slag to protect the weld, ensuring the quality of steel structure welding processing; During submerged arc welding, flux can reduce the impact of the external environment on the weld metal and stabilize the arc. After heating, it forms slag to protect the molten droplets and molten pool, prevent the weld from cooling too quickly, deoxidize through reaction and incorporate alloy elements, improve welding process performance, make the weld shape beautiful, and improve welding quality.

[0003] In the existing submerged arc welding process of steel structures, residual flux and coarse materials that are not completely melted cannot be promptly recovered and put into use during the welding process. The coarse materials that are not completely melted are discarded due to their large particles, resulting in a waste of material costs. In addition, the flux slag that is melted and covers the weld needs to be manually knocked out by workers, which is not conducive to timely observation of the weld by workers. Therefore, a welding device for steel structure processing is proposed. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a welding device for processing steel structures.

[0005] The technical solution adopted by the present invention to solve its technical problem is a welding device for steel structure processing, comprising a submerged arc welding part, a workpiece table and a track group arranged on the workpiece table, the submerged arc welding part is arranged on the track group, the track group comprises a lifting platform, the top two sides of the lifting platform are respectively connected to tracks, a rack is arranged on the top of the lifting platform and located between the tracks, an oil cylinder is arranged at the bottom of the lifting platform, the sleeve of the oil cylinder is connected to one side of the workpiece table, and the output end of the oil cylinder is connected to the lifting platform; The submerged arc welding part includes a trolley and a submerged arc welding machine, a side arm is connected to one side of the top of the trolley, the submerged arc welding machine is installed at the bottom of the side arm, the top of the flux feeding end of the submerged arc welding machine is connected to a re-feeding bin, a suction nozzle for sucking the flux is provided behind the welding end of the submerged arc welding machine, and a metal shaping hose is connected to the top of the suction nozzle, a pay-off wheel group with welding wire wound thereon is provided on the trolley, the welding wire enters the wire feeding end of the submerged arc welding machine from the discharge end of the pay-off wheel group, a power assembly is installed in the trolley, and rail wheels are provided on both sides of the trolley, and the rail wheels are located on the rails; A flux recovery assembly is provided on the other side of the trolley, and the flux recovery assembly includes a recovery box, and the recovery box is provided with a crushing part and a pushing part. The power assembly is connected to the rack, the crushing part and the pushing part, and the pushing part is connected to the re-material bin; A first L-shaped slide is provided at the bottom of one side of the submerged arc welding machine, one end of the first L-shaped slide is sleeved on the flux discharge sleeve of the submerged arc welding machine, one end of the first L-shaped slide is slidably connected to a second L-shaped slide, and the second L-shaped slide is provided with a slag discharge mechanism for removing flux residue.

[0006] By adopting the above technical solution, through the setting of the workpiece table and the track group, the workpiece table provides support for the workpiece, and the track group provides a moving platform for the trolley, and the workpiece table can be a frame structure or a sword rack. The lifting platform is connected to the workpiece table through an oil cylinder, so that the trolley of the submerged arc welding part can better adjust the height of the welding operation based on the lifting of the lifting platform. The trolley is set on the track through the track wheel, and the welding wire is introduced into the wire feed end of the submerged arc welding machine by the wire pay-off wheel group through the guide wheel. When welding movement is required, the power component provides moving power for the trolley, so that the upper mechanism of the trolley moves on the lifting platform to serve the workpiece on the workpiece table.

[0007] Specifically, the power assembly includes a motor and a gear reducer. The motor is installed on one side of the trolley, and the axle of the gear in the gear reducer is rotatably connected to the trolley through a bearing. The output end of the motor is connected to the axle of the output gear of the gear reducer. One end of the axle of the output gear of the gear reducer is connected to a traveling gear. The bottom of the traveling gear passes through the trolley and meshes with the rack. A high-speed synchronous wheel is installed on the gear shaft of the input gear of the gear reducer away from the motor through a key pin, and a low-speed synchronous wheel is installed on the side of the traveling gear away from the gear reducer.

[0008] By adopting the above technical solution, the triple drive is implemented with the power component as the main body. The motor output shaft is connected to the gear reducer input gear, and the travel gear and high-speed synchronous wheel are installed on the end of the reducer output gear shaft. The travel gear is engaged with the rack to drive the trolley to move. The high-speed synchronous wheel drives the crushing part through the synchronous belt, while the low-speed synchronous wheel drives the pushing part through the synchronous belt. After the motor is decelerated and torqued by the reducer, the trolley is moved through the travel gear. The gear ratio of the high-speed synchronous wheel and the low-speed synchronous wheel is designed to be 3-10:1, which meets the process requirements of high-speed crushing and low-speed pushing.

[0009] Specifically, the crushing part is arranged at the top of the recovery box, the pushing part is arranged at the bottom of the recovery box and is located at the bottom of the crushing part, a sieve plate with a plurality of groups of powder filter holes formed on the surface is welded in the recovery box and at the bottom of the pushing part, a powder collecting chamber is formed in the recovery box and at the bottom of the sieve plate, and a removable powder storage drawer is provided in the collecting chamber; The crushing part comprises a round pie type crushing box, the axis of the crushing box is rotationally connected with a shaft rod through a bearing, the shaft rod is welded with a chain on both sides, the end of the chain is connected with a hammer head for crushing the flux recovered into the crushing box, the crushing box is welded with a box cover on one side, and the first input synchronous wheel is connected with the shaft head of one end of the shaft rod through the box cover, and the first input synchronous wheel is connected with the high speed synchronous wheel through a synchronous belt; The side of the crushing box away from the box cover is provided with an upper axial flow fan, the outer periphery of the air inlet end of the shell of the upper axial flow fan is provided with radiating fins at equal distances, the radiating fins are welded with the crushing box on one side, and the input shaft of the upper axial flow fan is connected with the shaft head of the other end of the shaft rod through the crushing box; The top of the outer periphery of the crushing box is provided with an inlet on one side, and the bottom of the crushing box is provided with a plurality of groups of sieve holes for discharging materials; The top corner of the recycling box is connected with a venturi tube group, the venturi tube group comprises a venturi tube provided with an inlet and an outlet at both ends, the bottom of the venturi tube near the inlet is provided with a negative pressure port for negative pressure suction of the metal shaped hose, the negative pressure port is connected with the discharge end of the metal shaped hose through a pipeline, and the inlet is connected with the exhaust end of the upper axial flow fan through a pipeline; The bottom side of the venturi tube group near the outlet is provided with a coarse material discharge port, the coarse material discharge port is arranged in an inclined manner, the coarse material discharge port is connected with the inlet of the crushing box through an inclined pipe, and the venturi tube group is provided with a filter screen on the top of the coarse material discharge port in an inclined manner, and the diameter ratio of the outlet to the discharge port is 2-5:1.

[0010] Through the above technical scheme, the shaft rod is driven by the synchronous belt of the high speed synchronous wheel, the hammer head swings at high speed, the flux recovered into the crushing box is impacted and crushed, the crushed particles fall into the trapezoidal guide box through the sieve holes, the particles enter the inlet end of the spiral pushing rod, the shaft rod drives the upper axial flow fan to rotate, the inlet of the venturi tube is provided with air pressure, the negative pressure port generates suction, the suction nozzle below the metal shaped hose generates suction, the flux and coarse materials not hot-melted on the welding seal are sucked, the flux and coarse materials pass through the filter screen and enter the crushing box through the inclined pipe connected with the discharge port, and a self-circulating crushing process is formed.

[0011] Specifically, the pushing part includes a horizontally arranged barrel, which is welded to the recovery box, and the feeding end of the barrel is connected to an inverted trapezoidal material guide box, the top of the trapezoidal material guide box is welded to the bottom of the crushing box and communicated with the sieve hole, and the bottom of the crushing box is in close contact with the sieve plate, and a spiral pushing rod is provided in the barrel, and the feeding end of the spiral pushing rod is located at the bottom of the trapezoidal material guide box, and the shaft heads at both ends of the spiral pushing rod are rotatably connected to the barrel and the trapezoidal material guide box through bearings respectively, and the shaft heads at both ends of the spiral pushing rod pass through the discharge barrel and the trapezoidal material guide box and are respectively installed with a second input synchronous wheel and an output synchronous wheel, and the second input synchronous wheel is connected to the low-speed synchronous wheel through a synchronous belt.

[0012] By adopting the above technical solution, the spiral pusher is rotated by the driving force transmitted by the low-speed synchronous wheel, and the crushed flux gradually enters the bottom of the trapezoidal guide box. During the pushing period, the flux that has not yet entered the barrel is moved to a certain extent on the upper end of the sieve plate based on the spiral push of the front end of the spiral pusher, and the fine powder is sieved through the sieve plate into the powder storage drawer below for later collection by personnel. As the spiral pusher continues to push, the residual flux particles of the required particle size are pushed into the old silo of the re-material silo, thereby realizing the recovery of the residual flux.

[0013] Specifically, the top and bottom of the compound material bin are respectively a storage cavity and a discharge cavity, a partition is welded in the storage cavity, and the partition separates the two ends of the storage cavity into a new material bin and an old material bin, the bottoms of the new material bin and the old material bin are separated from the discharge cavity by a first discharge roller and a second discharge roller, respectively, the outer periphery of the first discharge roller and the second discharge roller is provided with a material retention notch according to the required proportion of ingredients, the bottom of the barrel away from the trapezoidal material guide box is connected to the old material bin through an inclined tube, and the lower end of the inclined tube is located at the end of the old material bin, and the bottom of the discharge cavity is connected to the flux discharge sleeve of the submerged arc welding machine through a spiral tube; A core rod is installed in the first and second unloading rollers through a key pin, one end of the core rod is connected to the third input synchronous wheel through a ratchet, both ends of the core rod are rotatably connected to the re-material bin through bearings, and the other end of the core rod passes through the re-material bin and is installed with a hand wheel, and the third input synchronous wheel and the output synchronous wheel are connected by a synchronous belt; An L-shaped support plate is welded to one side of the recovery box, and the side surfaces of the third input synchronous wheel and the output synchronous wheel are rotatably connected to both ends of the L-shaped support plate through bearings.

[0014] By adopting the above technical solution, the new material of flux particles used in the required proportion is stored in the new material bin in the re-material bin, and based on the setting of the third input synchronous wheel on the core rod, the transmission force provided by the output synchronous wheel of the spiral push rod causes the first unloading roller and the second unloading roller to rotate, and the flux particles in the new material bin and the old material bin are driven by the material retention grooves on the rotating first unloading roller and the second unloading roller to be discharged into the unloading cavity at the bottom of the re-material bin, and the new and old materials in the unloading cavity are discharged from the spiral tube into the flux unloading sleeve of the submerged arc welding machine, and are discharged to cover the weld bead of the steel structure workpiece. During this period, the new and old materials are mixed in the spiral tube, and the residual flux is recycled.

[0015] Specifically, the slag discharge mechanism includes an air box, which is slidably connected to the second L-shaped slide via a slider, and an L-shaped plate is provided on the side of the second L-shaped slide away from the air box, the L-shaped plate is fixed to the slider of the air box by bolts, and the L-shaped plate is clamped, and a lower axial flow fan is installed on the side of the air box away from the second L-shaped slide, the exhaust end of the lower axial flow fan is in communication with the air box, the air inlet end of the lower axial flow fan is connected to the pressure discharge port via a pipe, and an inclined air outlet is provided at the bottom of the air box, and the blowing direction of the air outlet is opposite to the suction nozzle; The first transmission tooth and the second transmission tooth are rotatably installed on one side of the L-shaped plate through a bearing in sequence, the first transmission tooth is meshed with the second transmission tooth, and the fan blade shaft core of the lower axial fan is connected to the center of the first transmission tooth through a key pin, and an eccentric wheel is rotatably installed on the side of the L-shaped plate away from the second transmission tooth through a bearing, and the shaft core of the second transmission tooth is connected to the center of the eccentric wheel through a key pin, and a guide sleeve is installed at the bottom of the L-shaped plate, and a guide rod is inserted in the guide sleeve, and a cutter for chopping medicinal residues is connected to the bottom of the guide rod, and a connecting rod is rotatably connected to the top of the guide rod through a rotating shaft, and the top of the connecting rod is sleeved on the output shaft of the eccentric wheel and positioned by a retaining spring; The sliding end of the second L-shaped slide plate and the sleeve end of the first L-shaped slide plate are fixed by bolts or tightening knobs.

[0016] By adopting the above technical solution and setting up the slag discharge mechanism, the linkage between slag discharge and slag cutting is realized. Due to the linear design of the pressure inlet and the pressure discharge port in the venturi tube, and the larger diameter of the pressure discharge port than the discharge port, most of the wind pressure in the venturi tube is discharged through the pressure discharge port, and the wind pressure enters the wind box through the lower axial flow fan, and the fan blades of the lower axial flow fan are pushed by the wind pressure to generate a rotating force, and the inclined blowing port of the wind box blows the slag on the weld to blow the slag away from the weld, which is convenient for welding processing. It provides effective guarantee for personnel to observe the weld, and the rotating blade shaft core of the lower axial fan drives the first transmission tooth to rotate, so that the second transmission tooth meshing with the first transmission tooth drives the eccentric wheel to rotate. The eccentric wheel drives the guide rod through the connecting rod to make up and down reciprocating motion in the guide sleeve, so that the cutter at the bottom of the guide rod cuts the solidified flux residue on the weld below. With the help of the blowing and exhaust of the inclined blowing port at the bottom of the wind box, the residue is blown away from the weld, which helps to expose the weld and facilitates the welding process personnel to observe whether there are defects in the weld in time. By adjusting the working position of the first L-shaped slide on the flux feeding sleeve of the submerged arc welding machine up and down, the working height of the overall slag discharge mechanism can be adjusted, and by adjusting the sliding of the second L-shaped slide on the first L-shaped slide, and adjusting the sliding of the wind box on the second L-shaped slide, the working position of the slag discharge mechanism is further adjusted so that the slag discharge mechanism can better adapt to the position of the weld. The sliding structure of the first L-shaped slide and the second L-shaped slide can be a dovetail groove sliding connection structure, and the locking bolt adopts M8-M12 fine thread.

[0017] The beneficial effects of the present invention are as follows: it realizes triple drive of the power component, drives the gear reducer through a single motor, and simultaneously realizes the functions of trolley travel, high-speed crushing of the crushing part, and low-speed pushing of the pushing part, reduces the number of motors, reduces energy consumption, has a compact structure, and recycles the airflow. The airflow generated by the axial flow fan is used to drive the Venturi tube group to generate negative pressure to suck the flux, and provides wind power for the slag discharge mechanism, thereby realizing secondary energy utilization, improving system energy efficiency, and realizing the linkage between the slag discharge and slag cutting mechanisms. The wind power of the slag discharge mechanism drives the axial flow fan to rotate, drives the eccentric wheel through gear transmission, and then drives the cutter to reciprocate, thereby realizing the mechanical linkage between the removal of the medicine residue and the chopping, simplifying the drive structure, and improving the efficiency and integration based on the multi-component linkage design; It can make better use of soldering flux, forming a closed-loop system for recycling and reuse. It integrates dust collection for crushing, screening and pushing. The recycled soldering flux is hammered and refined in the crushing part, and the reusable particles are separated by the sieve plate. The spiral pusher transports the particles to the re-material bin and mixes them with new materials in proportion to achieve resource recycling. The self-circulating crushing system is realized through negative pressure suction and coarse material reprocessing. The airflow negative pressure generated by the Venturi tube group sucks the welding residue, and the particles that are not completely melted enter the crushing box for crushing and utilization, forming a self-circulating crushing process and improving the recycling quality. The height can be adjusted to improve the scope of welding operations and the lifting platform has good adaptability. The oil cylinder drives the lifting platform to adjust the track height to adapt to workpieces of different thicknesses, ensuring a constant distance between the welding end of the submerged arc welding machine and the weld, thereby ensuring welding quality. The position of the slag discharge mechanism can be quickly adjusted through the sliding connection between the first L-shaped slide and the second L-shaped slide to better adapt to the weld position. Based on the combination of wind slag removal and mechanical cutting, automatic slag discharge and slag processing are realized. Based on the wind pressure power discharged by the Venturi tube group, the driving force generated by the axial flow fan drives the eccentric wheel to operate, so that the cutter cuts large pieces of slag at a high frequency under the drive of the eccentric wheel, and at the same time the axial flow fan generates The wind box uses the inclined air outlet to blow the slag away from the weld with the wind pressure, avoiding the manual cleaning of the slag formed by the high temperature of the flux on the weld, improving the welding continuity, and helping to quickly expose the completed weld for personnel to observe whether there are welding defects in the weld, facilitating personnel to intervene as early as possible, and solving the problems in the existing steel structure submerged arc welding process, where residual flux and coarse materials that are not completely melted cannot be promptly recycled and put into use during the welding process, and the coarse materials that are not completely melted are abandoned due to large particles, resulting in waste of material costs, and the flux slag that is molten and covers the weld needs to be manually knocked out by workers, which is not conducive to workers' timely observation of the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and examples.

[0019] Figure 1 It is an overall diagram of the present invention; Figure 2 This is a diagram of the submerged arc welding portion of the present invention; Figure 3 is a schematic diagram of a power assembly of the present invention; Figure 4 A schematic diagram of a flux recovery assembly of the present invention; Figure 5 Schematic diagram of the crushing part of the present invention; Figure 6 A schematic diagram of a crushing box according to the present invention; Figure 7 It is a schematic diagram of the sieve plate of the present invention; Figure 8 Schematic diagram of the cross section of the Venturi tube of the present invention; Figure 9 For the present invention Figure 2 A in the middle is an enlarged schematic diagram; Figure 10 For the present invention Figure 1 Middle B is an enlarged schematic diagram; Figure 11 Schematic diagram of the slag discharge mechanism of the present invention; Figure 12 Schematic diagram of the cross section of the spiral tube of the present invention; In the figure: submerged arc welding part 1, trolley 11, track wheel 111, side arm 112, power assembly 12, motor 121, gear reducer 122, high-speed synchronous wheel 123, travel gear 124, low-speed synchronous wheel 125, submerged arc welding machine 13, suction nozzle 14, metal shaping hose 141, wire pay-off wheel assembly 15, flux recovery assembly 16, recovery box 161, powder storage drawer 611, crushing part 162, sieve plate 607, crushing box 62, shaft 621, chain 622, hammer head 623, first input synchronous wheel 624, sieve hole 625, upper axial flow fan 163, heat dissipation fin 164, venturi tube assembly 165, venturi tube 65, pressure inlet 651, negative pressure port 652, pressure outlet 653, coarse material discharge port 654, Filter mesh 655, trapezoidal material guide box 166, pushing part 167, barrel 67, L-shaped support plate 672, third input synchronous wheel 673, spiral pushing rod 168, second input synchronous wheel 681, output synchronous wheel 682, re-material bin 17, partition 171, first unloading roller 172, second unloading roller 173, material retention groove 174, core rod 175, workpiece table 2, lifting platform 3, track 31, rack rail 32, oil cylinder 33, first L-shaped slide 4, second L-shaped slide 41, slag discharge mechanism 5, wind box 51, lower axial fan 52, inclined air outlet 53, L-shaped plate 54, first transmission gear 55, second transmission gear 56, eccentric wheel 57, guide sleeve 58, guide rod 59, cutter 510, connecting rod 511. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] As an embodiment of the present invention, Figures 1 to 12 As shown, a welding device for steel structure processing according to the present invention comprises a submerged arc welding part 1, a workpiece table 2 and a track group arranged on the workpiece table 2, wherein the submerged arc welding part 1 is arranged on the track group, and the track group comprises a lifting platform 3, the top two sides of the lifting platform 3 are respectively connected to tracks 31, a rack 32 is arranged on the top of the lifting platform 3 and located between the tracks 31, and an oil cylinder 33 is arranged at the bottom of the lifting platform 3, the sleeve of the oil cylinder 33 is connected to one side of the workpiece table 2, and the output end of the oil cylinder 33 is connected to the lifting platform 3; The submerged arc welding part 1 includes a trolley 11 and a submerged arc welding machine 13, a side arm 112 is connected to one side of the top of the trolley 11, the submerged arc welding machine 13 is installed at the bottom of the side arm 112, the top of the flux feeding end of the submerged arc welding machine 13 is connected to a re-feeding bin 17, a suction nozzle 14 for sucking the flux is provided behind the welding end of the submerged arc welding machine 13, and a metal shaping hose 141 is connected to the top of the suction nozzle 14, a pay-off wheel group 15 with welding wire wound thereon is provided on the trolley 11, and the welding wire enters the wire feeding end of the submerged arc welding machine 13 from the discharge end of the pay-off wheel group 15, a power assembly 12 is installed in the trolley 11, and track wheels 111 are provided on both sides of the trolley 11, and the track wheels 111 are located on the track 31; A flux recovery assembly 16 is provided on the other side of the trolley 11. The flux recovery assembly 16 includes a recovery box 161. The recovery box 161 is provided with a crushing part 162 and a pushing part 167. The power assembly 12 is connected to the rack 32, the crushing part 162 and the pushing part 167. The pushing part 167 is connected to the re-material bin 17. A first L-shaped slide 4 is provided at the bottom of one side of the submerged arc welding machine 13, one end of the first L-shaped slide 4 is sleeved on the flux discharge sleeve of the submerged arc welding machine 13, and one end of the first L-shaped slide 4 is slidably connected to a second L-shaped slide 41, and a slag discharge mechanism 5 for discharging slag is provided on the second L-shaped slide 41.

[0022] When in use, the submerged arc welding part 1 is mounted on the track group through the track wheel 111. The track group includes a lifting platform 3 and a track 31 and a rack 32 symmetrically arranged on its top. The lifting platform 3 is vertically lifted by the bottom oil cylinder 33 to adapt to workpieces of different thicknesses. The main body of the submerged arc welding part 1 is a trolley 11, on which a submerged arc welding machine 13, a power component 12 and a flux recovery component 16 are integrated, and the horizontal position adjustment of the slag discharge mechanism 5 is realized through the sliding connection between the first L-shaped slide 4 and the second L-shaped slide 41.

[0023] For example, Figure 3 As shown, the present invention also includes that the power assembly 12 includes a motor 121 and a gear reducer 122, the motor 121 is installed on one side of the trolley 11, and the axle of the gear in the gear reducer 122 is rotatably connected to the trolley 11 through a bearing, the output end of the motor 121 is connected to the axle of the output gear of the gear reducer 122, and one end of the axle of the output gear of the gear reducer 122 is connected to a traveling gear 124, and the bottom of the traveling gear 124 passes through the trolley 11 and meshes with the rack 32; A high-speed synchronous wheel 123 is mounted on the gear shaft of the input gear of the gear reducer 122 at the end away from the motor 121 through a key pin, and a low-speed synchronous wheel 125 is mounted on the side of the traveling gear 124 away from the gear reducer 122 .

[0024] When in use, the power component 12 is used as the main body to implement triple drive. The output shaft of the motor 121 is connected to the input gear of the gear reducer 122. The travel gear 124 and the high-speed synchronous wheel 123 are installed on the end of the output gear shaft of the reducer. The travel gear 124 is engaged with the rack 32 to drive the trolley to move. The high-speed synchronous wheel 123 drives the crushing part 162 through the synchronous belt, and the low-speed synchronous wheel 125 drives the pushing part 167 through the synchronous belt. After the motor 121 is decelerated and torqued by the reducer 122, the trolley is moved through the travel gear 124. The gear ratio of the high-speed synchronous wheel 123 and the low-speed synchronous wheel 125 is designed to be 3-10:1, which meets the process requirements of high-speed crushing and low-speed pushing.

[0025] For example, Figure 4 、 Figure 5 、 Figure 6 As shown, the present invention further includes that the crushing portion 162 is arranged at the top of the recovery box 161, the pushing portion 167 is arranged at the bottom of the recovery box 161 and is located at the bottom of the crushing portion 162, and a sieve plate 607 with a plurality of groups of powder filter holes formed on its surface is welded in the recovery box 161 and at the bottom of the pushing portion 167, a powder collecting chamber is formed in the recovery box 161 and at the bottom of the sieve plate 607, and a removable powder storage drawer 611 is provided in the collecting chamber; The crushing section 162 includes a pancake-shaped crushing box 62. The center of the crushing box 62 is rotatably connected to a shaft 621 via a bearing. Chains 622 are welded to both sides of the shaft 621. The ends of the chains 622 are connected to hammers 623 for crushing the flux recovered into the crushing box 62. A box cover is welded to one side of the crushing box 62, and one end of the shaft 621 passes through the box cover and is connected to a first input synchronous wheel 624. The first input synchronous wheel 624 is connected to the high-speed synchronous wheel 123 via a synchronous belt. An upper axial flow fan 163 is provided on the side of the crushing box 62 away from the box cover. Heat dissipation fins 164 are provided at equal intervals on the outer periphery of the air inlet end of the casing of the upper axial flow fan 163. One side of the heat dissipation fins 164 is welded to the crushing box 62. The other end of the shaft 621 passes through the crushing box 62 and is connected to the input shaft of the upper axial flow fan 163. A feed port is provided at the top of the outer circumference of the crushing box 62, and a plurality of sieve holes 625 for discharging materials are provided at the bottom of the crushing box 62; The recycling box 161 is connected with a Venturi tube group 165 at the top corner, the Venturi tube group 165 includes a Venturi tube 65 with an inlet port 651 and an outlet port 653, the bottom of the Venturi tube 65 near the inlet port 651 is provided with a negative pressure port 652 for negative pressure suction of the metal shaping hose 141, the negative pressure port 652 is connected with the discharge end of the metal shaping hose 141 through a pipeline, and the inlet port 651 is connected with the exhaust end of the upper axial flow fan 163 through a pipeline. The bottom side of the Venturi tube group 165 near the outlet port 653 is provided with a coarse material discharge port 654, the coarse material discharge port 654 is provided in an inclined manner, and the coarse material discharge port 654 is connected with the inlet port of the crushing box 62 through an inclined pipe, the Venturi tube group 165 is provided with a filter screen 655 on the top of the coarse material discharge port 654 in an inclined manner, and the diameter ratio of the outlet port 653 to the discharge port 654 is 2-5:1.

[0026] In use, the shaft rod 621 is driven by the synchronous belt of the high-speed synchronous wheel 123 through the setting of the chain 622 and the hammer head 623 welded on both sides of the shaft rod 621 in the crushing box 62, the hammer head 623 is swung at high speed to impact and crush the flux in the crushing box 62, the crushed particles fall into the trapezoidal guide box 166 through the sieve hole 625, so that the particles enter the inlet end of the spiral pushing rod 168, and the shaft rod 621 drives the upper axial flow fan 163 to rotate, the inlet port 651 of the Venturi tube 65 is provided with air pressure, the negative pressure port 652 generates suction, the suction nozzle 14 below the metal shaping hose 141 generates suction, the flux residue and the coarse material that are not hot-melted by the welding are sucked, the flux residue and the coarse material pass through the filter screen 655 and then enter the crushing box 62 through the inclined pipe connected with the discharge port 654, forming a self-circulating crushing process. During the work of the upper axial flow fan 163, air is sucked into the upper axial flow fan 163 from one end near the heat dissipation fin 164, the heat dissipation fin 164 provides heat dissipation and cooling for the surface of the crushing box 62, and reduces the temperature generated by the crushing friction.

[0027] For example, Figure 5As shown, the present invention also includes that the pushing portion 167 includes a transversely arranged barrel 67, the barrel 67 is welded to the recovery box 161, the feeding end of the barrel 67 is connected to an inverted trapezoidal guide box 166, the top of the trapezoidal guide box 166 is welded to the bottom of the crushing box 62 and communicates with the sieve hole 625, the bottom of the crushing box 62 is in contact with the sieve plate 607, a spiral pushing rod 168 is provided in the barrel 67, and the feeding end of the spiral pushing rod 168 is located at the bottom of the trapezoidal guide box 166, the shaft heads at both ends of the spiral pushing rod 168 are respectively rotatably connected to the barrel 67 and the trapezoidal guide box 166 through bearings, the shaft heads at both ends of the spiral pushing rod 168 pass through the discharge barrel 67 and the trapezoidal guide box 166, and are respectively installed with a second input synchronous wheel 681 and an output synchronous wheel 682, and the second input synchronous wheel 681 is connected to the low-speed synchronous wheel 125 through a synchronous belt.

[0028] When in use, the spiral pusher rod 168 is rotated by the driving force transmitted by the low-speed synchronous wheel 125, and pushes the crushed flux gradually entering the bottom of the trapezoidal material guide box 166. During the pushing period, the flux that has not yet entered the barrel 67 is moved to a certain extent at the upper end of the sieve plate 607 based on the spiral push of the front end of the spiral pusher rod 168, and the fine powder is sieved through the sieve plate 607 to the powder storage drawer 611 below for later collection by personnel. As the spiral pusher rod 168 continues to push, the residual flux particles of the required particle size are pushed into the old silo of the re-material silo 17, thereby realizing the recovery of the residual flux.

[0029] For example, Figure 9 As shown, the present invention also includes that the top and bottom of the compound bin 17 are respectively a storage cavity and a discharge cavity, and a partition 171 is welded in the storage cavity, and the partition 171 separates the two ends of the storage cavity into a new bin and an old bin, respectively. The bottoms of the new bin and the old bin are separated from the discharge cavity by a first discharge roller 172 and a second discharge roller 173, respectively. The outer periphery of the first discharge roller 172 and the second discharge roller 173 is provided with a material retention notch 174 according to the required batching ratio. The bottom of the barrel 67 away from the trapezoidal guide box 166 is connected to the old bin through an inclined tube, and the lower end of the inclined tube is located at the end of the old bin, and the bottom of the discharge cavity is connected to the flux discharge sleeve of the submerged arc welding machine 13 through a spiral tube. A core rod 175 is installed in the first and second unloading rollers 172 and 173 via a key pin. One end of the core rod 175 is connected to the third input synchronous wheel 673 via a ratchet. Both ends of the core rod 175 are rotatably connected to the re-material bin 17 via bearings, and the other end of the core rod 175 passes through the re-material bin 17 and is installed with a handwheel. The third input synchronous wheel 673 and the output synchronous wheel 682 are connected via a synchronous belt. An L-shaped support plate 672 is welded to one side of the recovery box 161 , and the side surfaces of the third input synchronous wheel 673 and the output synchronous wheel 682 are rotatably connected to both ends of the L-shaped support plate 672 through bearings.

[0030] During use, based on the new material bin in the re-material bin 17 storing the new material of flux particles used in the required proportion, the setting of the third input synchronous wheel 673 on the core rod 175 and the transmission force provided by the output synchronous wheel 682 of the spiral push rod 168 cause the first unloading roller 172 and the second unloading roller 173 to rotate, and the material retention groove 174 on the rotating first unloading roller 172 and the second unloading roller 173 drives the flux particles in the new material bin and the old material bin to be discharged into the unloading cavity at the bottom of the re-material bin 17, and the new material and the old material in the unloading cavity are discharged from the spiral tube into the flux unloading sleeve of the submerged arc welding machine 13, and are discharged to cover the weld of the steel structure workpiece. During this period, the new material and the old material are mixed in the spiral tube, and the residual flux is recycled.

[0031] For example, Figure 10 、 Figure 11 As shown, the present invention also includes that the slag discharge mechanism 5 includes a wind box 51, which is slidably connected to the second L-shaped slide 41 through a slider, and an L-shaped plate 54 is provided on the side of the second L-shaped slide 41 away from the wind box 51, and the L-shaped plate 54 is fixed to the slider of the wind box 51 by bolts, and the L-shaped plate 54 is clamped, and a lower axial flow fan 52 is installed on the side of the wind box 51 away from the second L-shaped slide 41, the exhaust end of the lower axial flow fan 52 is communicated with the wind box 51, and the air inlet end of the lower axial flow fan 52 is connected to the pressure discharge port 653 through a pipe, and an inclined air outlet 53 is provided at the bottom of the wind box 51, and the blowing direction of the air outlet 53 is opposite to the suction nozzle 14; The first transmission tooth 55 and the second transmission tooth 56 are rotatably mounted on one side of the L-shaped plate 54 in sequence through a bearing. The first transmission tooth 55 meshes with the second transmission tooth 56, and the blade shaft core of the lower axial fan 52 is connected to the center of the first transmission tooth 55 through a key pin. An eccentric wheel 57 is rotatably mounted on the side of the L-shaped plate 54 away from the second transmission tooth 56 through a bearing. The shaft core of the second transmission tooth 56 is connected to the center of the eccentric wheel 57 through a key pin. A guide sleeve 58 is installed at the bottom of the L-shaped plate 54, and a guide rod 59 is inserted into the guide sleeve 58. A cutter 510 for chopping medicinal residues is connected to the bottom of the guide rod 59. The top of the guide rod 59 is rotatably connected to a connecting rod 511 through a rotating shaft. The top of the connecting rod 511 is sleeved on the output shaft of the eccentric wheel 57 and positioned by a retaining spring. The sliding end of the second L-shaped slide plate 41 and the sleeve end of the first L-shaped slide plate 4 are fixed by bolts or tightening knobs.

[0032] When in use, the slag discharge mechanism 5 is arranged to realize the linkage between slag discharge and slag cutting. Due to the linear design of the pressure inlet 651 and the pressure discharge port 653 in the venturi tube 65, and the diameter of the pressure discharge port 653 is larger than the diameter of the discharge port 654, most of the wind pressure in the venturi tube 65 is discharged through the pressure discharge port 653, and the wind pressure enters the wind box 51 through the lower axial flow fan 52. The blades of the lower axial flow fan 52 are pushed by the wind pressure to generate a rotational force, and the inclined blowing port 53 of the wind box 51 blows the slag on the weld to blow the slag away from the weld, which is convenient for welding processing personnel. The observation of the weld is effectively guaranteed, and the rotating blade shaft core of the lower axial fan 52 drives the first transmission gear 55 to rotate, so that the second transmission gear 56 meshing with the first transmission gear 55 drives the eccentric wheel 57 to rotate. The eccentric wheel 57 drives the guide rod 59 to make reciprocating motion up and down in the guide sleeve 58 through the connecting rod 511, so that the cutter 510 at the bottom of the guide rod 59 cuts the solidified flux residue on the weld below. In conjunction with the blowing and exhaust of the inclined blowing port 53 at the bottom of the wind box 51, the flux residue is blown away from the weld, which helps to expose the weld and facilitates the welding process personnel to timely observe whether there are defects in the weld. By adjusting the working position of the first L-shaped slide 4 on the flux feeding sleeve of the submerged arc welding machine 13 up and down, the working height of the overall slag discharge mechanism 5 is adjusted, and by adjusting the sliding of the second L-shaped slide 41 on the first L-shaped slide 4, and adjusting the sliding of the wind box 51 on the second L-shaped slide 41, the working position of the slag discharge mechanism is further adjusted so that the slag discharge mechanism can better adapt to the position of the weld. The sliding structure of the first L-shaped slide 4 and the second L-shaped slide 41 can be a dovetail groove sliding connection structure, and the locking bolt adopts M8-M12 fine thread.

[0033] When the present invention is in use, the power supply component in the work site provides power to the electrical mechanism in the present application, and the control circuit of the electrical mechanism is connected to the control terminal such as the control host or PLC in the work site. The submerged arc welding part 1 is mounted on the track group through the track wheel 111, and the lifting platform 3 is vertically lifted and lowered by the bottom cylinder 33 to adapt to workpieces of different thicknesses. The main body of the submerged arc welding part 1 is a trolley 11, on which the submerged arc welding machine 13, the power component 12 and the flux recovery component 16 are integrated, and the horizontal position adjustment of the slag discharge mechanism 5 is achieved through the sliding connection between the first L-shaped slide 4 and the second L-shaped slide 41; The steel structure to be welded is placed on the workpiece table 2, and the weld seam of the steel structure is parallel to the track 31, and the welding wire discharged by the submerged arc welding machine 13 is aligned with the weld seam, and the weld seam of the steel structure is welded by the submerged arc welding machine 13. During the initial welding, the core rod 175 is rotated by a hand wheel manually to rotate the first unloading roller 172 and the second unloading roller 173, so that the new flux material in the re-material bin 17 is discharged downward, and the weld seam at the initial end is discharged upward. The submerged arc welding machine 13 starts working, and at the same time, the motor 121 of the power component 12 is started, and the driving frequency of the motor 121 is set according to the actual welding requirements. The power component 12 is used as the main body to realize the implementation of triple drive. The output shaft of the motor 121 is connected to the input gear of the gear reducer 122. A traveling gear 124 and a high-speed synchronous wheel 123 are installed at the end of the output gear shaft of the speed reducer. The traveling gear 124 meshes with the rack 32 to drive the trolley to travel. The high-speed synchronous wheel 123 drives the crushing part 162 through a synchronous belt, and the low-speed synchronous wheel 125 drives the pushing part 167 through a synchronous belt. After the motor 121 is decelerated and torqued by the speed reducer 122, the trolley is moved through the traveling gear 124. The gear ratio of the high-speed synchronous wheel 123 and the low-speed synchronous wheel 125 is designed to be 3-10:1, which meets the process requirements of high-speed crushing and low-speed pushing. By welding the chain 622 and the hammer head 623 on both sides of the shaft 621 in the crushing box 62, the shaft 621 is driven by the synchronous belt of the high-speed synchronous wheel 123 to achieve high-speed crushing of the hammer head 623. The flux recovered into the crushing box 62 is impact-crushed by swinging at a high speed. The crushed particles fall into the trapezoidal guide box 166 through the sieve hole 625, and enter the feeding end of the spiral push rod 168. At the same time, the shaft 621 drives the upper axial flow fan 163 to rotate, providing wind pressure to the pressure inlet 651 of the venturi tube 65, so that the negative pressure port 652 generates suction, and the suction nozzle 14 below the metal shaping hose 141 generates suction, so that the residual flux and coarse materials that are not melted on the weld seal are sucked out. The residual flux and coarse materials are intercepted by the filter mesh 655 and enter the crushing box 62 through the inclined pipe connected to the discharge port 654, forming a self-circulating crushing process. The spiral push rod 168 is rotated by the driving force transmitted by the low-speed synchronous wheel 125 , the crushed flux gradually entering the bottom of the trapezoidal guide box 166 is pushed forward. During the pushing period, the flux that has not yet entered the barrel 67 is moved to a certain extent at the upper end of the sieve plate 607 based on the spiral push of the front end of the spiral push rod 168, and the fine powder is sieved into the powder storage drawer 611 below through the sieve plate 607 for personnel to collect later. With the continuous pushing of the spiral push rod 168, the residual flux particles of the required particle size are pushed into the old silo of the re-material bin 17, thereby realizing the recovery of the residual flux. The setting of the third input synchronous wheel 673 on the core rod 175 and the transmission force provided by the output synchronous wheel 682 of the spiral push rod 168 cause the first unloading roller 172 and the second unloading roller 173 to rotate.The material retention notches 174 on the rotating first discharge roller 172 and the second discharge roller 173 drive the flux particles in the new material bin and the old material bin to be discharged into the discharge cavity at the bottom of the re-material bin 17, and the new and old materials in the discharge cavity are discharged from the spiral tube into the flux discharge sleeve of the submerged arc welding machine 13, and are discharged to cover the weld bead of the steel structure workpiece. During this period, the new and old materials are mixed in the spiral tube, and the residual flux is recycled. The slag discharge mechanism 5 is used to realize the linkage between slag discharge and slag cutting. Due to the linear design of the pressure inlet 651 and the pressure discharge port 653 in the Venturi tube 65, and the pressure discharge diameter of the pressure discharge port 653 is larger than the pressure discharge diameter of the discharge port 654, most of the wind pressure in the Venturi tube 65 is discharged through the pressure discharge port 653, and the wind pressure enters the wind through the lower axial flow fan 52. Inside the box 51, the blades of the lower axial flow fan 52 are driven by the wind pressure to generate a rotational force, and the inclined air outlet 53 of the air box 51 blows the slag on the weld seam, blowing the slag away from the weld seam, providing an effective guarantee for the welding process personnel to observe the weld seam. The rotating fan shaft core of the lower axial flow fan 52 drives the first transmission gear 55 to rotate, causing the second transmission gear 56 engaged with the first transmission gear 55 to rotate the eccentric wheel 57. The eccentric wheel 57 drives the guide rod 59 to reciprocate up and down within the guide sleeve 58 through the connecting rod 511, causing the cutter 510 at the bottom of the guide rod 59 to cut the solidified flux slag on the lower weld seam. Combined with the blowing of the inclined air outlet 53 at the bottom of the air box 51, the slag is blown away from the weld seam, helping to expose the weld seam and making it easier for the welding process personnel to promptly observe whether there are any defects in the weld seam.

[0034] Furthermore, the specific length and width dimensions of the workpiece platform 2 and the lifting platform 3 are set according to actual needs.

[0035] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for steel structure processing, characterized in that: The invention comprises a submerged arc welding part (1), a workpiece table (2) and a track group arranged on the workpiece table (2), wherein the submerged arc welding part (1) is arranged on the track group, the submerged arc welding part (1) comprises a trolley (11) and a submerged arc welding machine (13), a side arm (112) is connected to the top side of the trolley (11), the submerged arc welding machine (13) is installed at the bottom of the side arm (112), a re-material bin (17) is connected to the top of the flux feeding end of the submerged arc welding machine (13), and a power component is installed in the trolley (11). (12), a flux recovery assembly (16) is provided on the other side of the trolley (11), the flux recovery assembly (16) includes a recovery box (161), a crushing part (162) and a pushing part (167) are provided on the recovery box (161), the power assembly (12) is connected to the rack (32), the crushing part (162) and the pushing part (167), the pushing part (167) is connected to the re-material bin (17), and a slag discharge mechanism (5) is provided on one side of the submerged arc welding machine (13).

2. A welding device for steel structure processing according to claim 1, characterized in that: The track group includes a lifting platform (3), the top of the lifting platform (3) is connected to tracks (31) on both sides, a rack (32) is provided on the top of the lifting platform (3) and between the tracks (31), an oil cylinder (33) is provided at the bottom of the lifting platform (3), the sleeve of the oil cylinder (33) is connected to one side of the workpiece table (2), and the output end of the oil cylinder (33) is connected to the lifting platform (3), and track wheels (111) are provided on both sides of the trolley (11), and the track wheels (111) are located on the tracks (31); The power assembly (12) includes a motor (121) and a gear reducer (122), wherein the motor (121) is mounted on one side of the trolley (11), and the axle of the gear in the gear reducer (122) is rotatably connected to the trolley (11) via a bearing, the output end of the motor (121) is connected to the axle of the output gear of the gear reducer (122), one end of the axle of the output gear of the gear reducer (122) is connected to a traveling gear (124), and the bottom of the traveling gear (124) passes through the trolley (11) and is engaged with the rack (32); A high-speed synchronous wheel (123) is mounted on the gear shaft of the input gear of the gear reducer (122) at one end away from the motor (121) via a key pin, and a low-speed synchronous wheel (125) is mounted on the side of the traveling gear (124) away from the gear reducer (122).

3. A welding device for steel structure processing according to claim 2, characterized in that: The crushing part (162) is arranged at the top of the recovery box (161), and the pushing part (167) is arranged at the bottom of the recovery box (161) and is located at the bottom of the crushing part (162). A sieve plate (607) with a plurality of groups of powder filter holes formed on its surface is welded and connected at the bottom of the pushing part (167) in the recovery box (161). A powder collecting chamber is formed in the recovery box (161) and at the bottom of the sieve plate (607), and a removable powder storage drawer (611) is provided in the collecting chamber.

4. A welding device for steel structure processing according to claim 3, characterized in that: The crushing part (162) includes a circular pancake-shaped crushing box (62), the center of the crushing box (62) is rotatably connected to a shaft (621) via a bearing, chains (622) are welded to both sides of the shaft (621), and hammers (623) are connected to the ends of the chains (622) for crushing the solder flux recovered into the crushing box (62), one side of the crushing box (62) is welded to a box cover, and the shaft head at one end of the shaft (621) passes through the box cover and is connected to a first input synchronous wheel (624), and the first input synchronous wheel (624) is connected to the high-speed synchronous wheel (123) via a synchronous belt; An upper axial flow fan (163) is provided on a side of the crushing box (62) away from the box cover, and heat dissipation fins (164) are provided at equal distances on the outer periphery of the air inlet end of the casing of the upper axial flow fan (163). One side of the heat dissipation fins (164) is welded to the crushing box (62), and the shaft head at the other end of the shaft rod (621) passes through the crushing box (62) and is connected to the input shaft of the upper axial flow fan (163); A feed port is provided at the top of one outer circumference of the crushing box (62), and a plurality of groups of sieve holes (625) for discharging materials are provided at the bottom of the crushing box (62).

5. A welding device for steel structure processing according to claim 4, characterized in that: The pushing portion (167) includes a horizontally arranged barrel (67), the barrel (67) is welded to the recovery box (161), the feeding end of the barrel (67) is connected to an inverted trapezoidal guide box (166), the top of the trapezoidal guide box (166) is welded to the bottom of the crushing box (62) and communicates with the sieve hole (625), the bottom of the crushing box (62) is in contact with the sieve plate (607), a spiral pushing rod (168) is provided in the barrel (67), and the spiral pushing rod (168) is connected to the bottom of the crushing box (62). The feeding end of the rod (168) is located at the bottom of the trapezoidal guide box (166), and the shaft heads at both ends of the spiral push rod (168) are rotatably connected to the barrel (67) and the trapezoidal guide box (166) through bearings. The shaft heads at both ends of the spiral push rod (168) pass through the discharge barrel (67) and the trapezoidal guide box (166) and are respectively installed with a second input synchronous wheel (681) and an output synchronous wheel (682). The second input synchronous wheel (681) is connected to the low-speed synchronous wheel (125) through a synchronous belt. A suction nozzle (14) for sucking flux is provided behind the welding end of the submerged arc welding machine (13), and a metal shaping hose (141) is connected to the top of the suction nozzle (14). A wire pay-off wheel group (15) with welding wire wound thereon is provided on the trolley (11), and the welding wire enters the wire feeding end of the submerged arc welding machine (13) from the discharge end of the wire pay-off wheel group (15).

6. The welding device for steel structure processing according to claim 5, characterized in that: A venturi tube assembly (165) is connected to the top corner of the recovery box (161), and the venturi tube assembly (165) includes a venturi tube (65) with a pressure inlet (651) and a pressure outlet (653) respectively provided at both ends. A negative pressure port (652) for negative pressure suction of the metal shaping hose (141) is provided at the bottom of the venturi tube (65) near the pressure inlet (651). The negative pressure port (652) is connected to the discharge end of the metal shaping hose (141) through a pipeline, and the pressure inlet (651) is connected to the exhaust end of the upper axial flow fan (163) through a pipeline. A coarse material discharge port (654) is provided on the bottom side of the venturi tube group (165) near one end of the pressure relief port (653). The coarse material discharge port (654) is arranged in an inclined shape and is connected to the feed port of the crushing box (62) through an inclined pipe. A filter mesh (655) is arranged in an inclined manner inside the venturi tube group (165) and located at the top of the coarse material discharge port (654). The ratio of the diameters of the pressure relief port (653) and the discharge port (654) is 2-5:

1.

7. A welding device for steel structure processing according to claim 6, characterized in that: The top and bottom of the re-material bin (17) are respectively a storage chamber and a discharge chamber, and a partition (171) is welded in the storage chamber, and the partition (171) separates the two ends of the storage chamber into a new bin and an old bin, respectively. The bottoms of the new bin and the old bin are separated from the discharge chamber by a first discharge roller (172) and a second discharge roller (173), respectively. The outer periphery of the first discharge roller (172) and the second discharge roller (173) is provided with a material retention notch (174) according to the required proportion of ingredients. The bottom of the barrel (67) away from the trapezoidal guide box (166) is connected to the old bin through an inclined tube, and the lower end of the inclined tube is located at the end of the old bin. The bottom of the discharge chamber is connected to the flux discharge sleeve of the submerged arc welding machine (13) through a spiral tube. A core rod (175) is installed in the first unloading roller (172) and the second unloading roller (173) via a key pin, one end of the core rod (175) is connected to a third input synchronous wheel (673) via a ratchet, both ends of the core rod (175) are rotatably connected to the re-material bin (17) via bearings, and the other end of the core rod (175) passes through the re-material bin (17) and is installed with a hand wheel, and the third input synchronous wheel (673) and the output synchronous wheel (682) are connected via a synchronous belt; An L-shaped support plate (672) is welded to one side of the recovery box (161), and the side surfaces of the third input synchronous wheel (673) and the output synchronous wheel (682) are rotatably connected to both ends of the L-shaped support plate (672) via bearings.

8. The welding device for steel structure processing according to claim 7, characterized in that: A first L-shaped slide plate (4) is provided at the bottom of one side of the submerged arc welding machine (13), one end of the first L-shaped slide plate (4) is sleeved on the flux discharge sleeve of the submerged arc welding machine (13), one end of the first L-shaped slide plate (4) is slidably connected to a second L-shaped slide plate (41), and a slag discharge mechanism (5) for discharging slag is provided on the second L-shaped slide plate (41); The slag discharge mechanism (5) includes a wind box (51), the wind box (51) is slidably connected to the second L-shaped slide plate (41) through a slider, and an L-shaped plate (54) is provided on the side of the second L-shaped slide plate (41) away from the wind box (51), the L-shaped plate (54) is fixed to the slider of the wind box (51) through bolts, and the L-shaped plate (54) is clamped, and a lower axial flow fan (52) is installed on the side of the wind box (51) away from the second L-shaped slide plate (41), the exhaust end of the lower axial flow fan (52) is communicated with the wind box (51), and the air inlet end of the lower axial flow fan (52) is connected to the pressure discharge port (653) through a pipe, and an inclined blowing port (53) is provided at the bottom of the wind box (51), and the blowing direction of the blowing port (53) is opposite to the suction nozzle (14); A first transmission tooth (55) and a second transmission tooth (56) are rotatably mounted on one side of the L-shaped plate (54) through a bearing, the first transmission tooth (55) meshes with the second transmission tooth (56), and the blade shaft core of the lower axial flow fan (52) is connected to the center of the first transmission tooth (55) through a key pin. An eccentric wheel (57) is rotatably mounted on the side of the L-shaped plate (54) away from the second transmission tooth (56), the shaft core of the second transmission tooth (56) is connected to the center of the eccentric wheel (57) through a key pin. A guide sleeve (58) is mounted on the bottom of the L-shaped plate (54), a guide rod (59) is inserted into the guide sleeve (58), a cutter (510) for chopping medicinal residues is connected to the bottom of the guide rod (59), and a connecting rod (511) is rotatably connected to the top of the guide rod (59) through a rotating shaft. The top of the connecting rod (511) is sleeved on the output shaft of the eccentric wheel (57) and positioned by a retaining spring. The sliding end of the second L-shaped slide plate (41) and the sleeve end of the first L-shaped slide plate (4) are fixed by means of bolts or tightening knobs.

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