Wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system

Abstract

The present application discloses an automatic spray welding control system for wear-resistant and corrosion-resistant sucker rod polished rods, which belongs to the technical field of plating. The present application is provided with a storage bin and a feeding conveyor belt. A transfer channel is provided on one side of the storage bin, and a notch is opened on one side of the transfer channel. The sucker rod polished rods in the storage bin enter into the transfer channel through extrusion feeding and then fall onto the surface of the feeding conveyor belt, and are transported to the spray welding site via the feeding conveyor belt. The present application is also provided with a spray welding structure, which can spray-weld alloy powder on the sucker rod polished rods in rotating transportation, and can also automatically control the feeding amount of the alloy powder, thereby improving the continuity of the sucker rod polished rods during spray welding production and improving the effect of spray welding of the sucker rod polished rods.

Description

Technical Field

[0001] The invention discloses a wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system, belonging to the technical field of plating. Background Art

[0002] Spray welding is to reheat the preheated self-soluble alloy powder coating to 50~1300℃, so that the particles are melted, slag floats to the surface of the coating, and the generated boride and silicide are dispersed in the coating, so that the particles and the substrate surface are well bonded. The final deposit is a dense metal crystal structure and forms a metallurgical bonding layer of about 0.2~0.51mm with the substrate. Its bonding strength is about 400MPa, with good impact resistance, wear resistance, corrosion resistance, and mirror appearance.

[0003] When spray welding the current sucker rod polished rod, since each sucker rod is long, two or more people are often required to cooperate when loading the materials in order to successfully place the sucker rod polished rod into the spray welding device. Moreover, when spray welding and coating the sucker rod polished rod, the existing spray welding equipment cannot control the feed amount of alloy powder in real time according to the gas intake amount, resulting in uneven thickness of the sucker rod spray welding coating and poor effect. Therefore, some technicians in this field have developed a wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system to overcome the problems in the above-mentioned background technology. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system in view of the above shortcomings. The present invention can automatically and orderly transport the sucker rod polished rod to the automatic spray welding location, and can control the amount of spray welding alloy powder during spray welding, thereby improving the production continuity during spray welding of the sucker rod polished rod and enhancing the spray welding effect.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system includes a storage bin and a feeding conveyor belt. The storage bin is an inverted triangle with an opening on the top. A transfer channel is fixedly connected to one side of the storage bin, and the transfer channel is a vertical pipeline.

[0007] The feeding conveyor belt is located below the transfer channel and the storage bin. The feeding conveyor belt is tilted. A receiving plate is provided at the upper end of the feeding conveyor belt. The receiving plate is tilted. A receiving groove is provided below the receiving plate, and a spray welding structure is provided above the receiving groove.

[0008] Furthermore, a gap is opened between the storage bin and the transfer channel, a transfer baffle is fixedly connected above the gap, the transfer baffle is fixedly connected to the inner wall of the storage bin, and the opening is tilted downward. Extrusion rotating shafts are also passed through both sides of the bottom of the storage bin, and a rotating motor is also fixedly connected to one end of the extrusion rotating shaft. The rotating motor is fixedly connected to an outer wall of one side of the storage bin. An extrusion plate is also provided at the bottom of the storage bin, and the lower end of the extrusion plate is fixedly connected to the surface of the extrusion rotating shaft. A rope is connected between the upper end of the extrusion plate and the inner wall of the upper end of the storage bin, and the rope is elastic.

[0009] Furthermore, a feeding plate is evenly fixed on the surface of the feeding conveyor belt, the feeding plate is placed obliquely, and a proximity switch is also provided at the lower part of the transfer channel;

[0010] A first photoelectric switch is arranged between the receiving plate and the receiving groove, and a lifting cylinder is fixedly connected below the receiving groove.

[0011] Furthermore, the spray welding structure includes a threaded column and a slide rail, which are placed in parallel and not on a vertical plane. A driving column is provided on the outer surface of the threaded column. The interior of the driving column is hollow and is connected to the threaded column by a thread. A first gear is fixed to the outer surface of the driving column. A rotating groove is also opened on the outer surface of the driving column. A ring is also embedded in the rotating groove. The ring can rotate in the rotating groove on the outer surface of the driving column. A welding coating structure and a second photoelectric switch are also provided between the threaded column and the slide rail.

[0012] Furthermore, a slider and a clamping block are embedded in the slide rail, and the slider, the clamping block and the outer surface of the ring are fixedly connected by a connecting rod. The lower end of the slider is fixedly connected to a conveying motor, and the outer surface of the conveying motor drive shaft is also fixedly connected to a second gear, and the second gear is meshed with the first gear through teeth.

[0013] Furthermore, a clamping cylinder is fixedly connected to one side surface of the clamping block relative to the sliding block, a turntable is provided on the end surface of the clamping cylinder, the turntable can rotate on the end surface of the clamping cylinder, and a finished product box is also provided under the slide rail.

[0014] Furthermore, the welding coating structure includes a powder bin, a bin cover is sealed above the powder bin, a bearing and an ultrasonic level meter are fixedly connected to the lower surface of the bin cover, a feed shaft is provided in the bearing, the feed shaft is located in the powder bin, a spiral blade is fixedly connected to the surface, a powder dropping pipe is connected below the powder bin, and a powder dropping assembly is provided between the two.

[0015] Furthermore, the powder discharge assembly includes a sealing disk, which is located on the surface above the powder bin discharge port to seal the powder bin discharge port. The feeding shaft passes through the center of the sealing disk to divide the sealing disk into two symmetrical parts. A spiral groove is provided in the sealing disk, and an opening and closing rotating shaft is provided in the spiral groove. A connecting rod is fixedly connected to the upper surface of the opening and closing rotating shaft and the surface of the feeding shaft.

[0016] Furthermore, the welding and coating structure also includes a cylinder, which is fixedly connected to the outer surfaces of both sides of the powder bin. The interior of the cylinder is hollow, one end is closed, and the other end is open. A spring and a telescopic block are arranged in the hollow of the cylinder, and the end of the telescopic block is against the side of the sealing disk. The welding and coating structure also includes a feeding plate, which is fixedly connected to the bottom of the feeding shaft. The surface of the feeding plate is evenly distributed with grooves, and the lower surface of the feeding plate is also fixedly connected to fan blades. An air pipe is also fixedly connected to one side of the powder dropping pipe, and an air valve is also provided on the air pipe. A spray welding pipe is also fixedly connected to the discharge port below the powder dropping pipe, and a gas valve is provided on the spray welding pipe, and the gas valve is a proportional valve.

[0017] Furthermore, it also includes a central controller, which is connected to an input part and an output part. The central controller is used to receive data detected by the input part and send operating instructions to the output part to realize the automatic operation of each part in the wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system. The central controller is also connected to a display screen, which is used to display the operating status and parameters of the wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system.

[0018] The present invention adopts the above technical solution, and has the following technical effects compared with the prior art:

[0019] 1. The present invention is provided with a storage bin and a feeding conveyor belt, a transfer channel is provided on one side of the storage bin, a notch is provided on one side of the transfer channel, and an extrusion plate is provided in the storage bin. Through repeated rotation and extrusion of the extrusion plate, the sucker rod polished rod in the storage bin can pass through the notch of the transfer channel and fall to the surface of the feeding conveyor belt, and then be transported to the spray welding site through the feeding conveyor belt, thereby solving the problem of difficulty in feeding the sucker rod and improving the continuity of the sucker rod polished rod during spray welding production.

[0020] 2. The present invention is provided with a spray welding structure, which can continuously spray weld the sucker rod polished rod in rotating transportation, and can also automatically control the feeding amount of alloy powder according to the amount of spray welding gas, thereby ensuring that when the same amount of gas enters, the thickness of the alloy coating on the surface of the sucker rod polished rod is uniform, thereby improving the effect of spray welding of the sucker rod polished rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale and orientation.

[0022] Figure 1 It is a schematic diagram of the structural connection of the present invention;

[0023] Figure 2 It is a schematic diagram of the connection between the threaded column and the slide rail structure in the spray welding structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the connection structure of the powder bin, the powder dropping pipeline and the spray welding pipeline of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection between the powder bin, the sealing disk and the cylindrical structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the electrical network connection principle of the central controller of the present invention.

[0027] In the figure: 1-storage bin, 2-transfer channel, 3-proximity switch, 4-transfer baffle, 5-extrusion rotating shaft, 6-rotating motor, 7-extrusion plate, 8-feeding conveyor belt, 9-feeding plate, 10-receiving plate, 11-receiving groove, 12-lifting cylinder, 13-spray welding structure, 14-threaded column, 15-driving column, 16-first gear, 17-slide rail, 18-sliding block, 19-conveyor motor, 20-second gear, 21-welding coating structure, 22-clamping block, 23-clamping cylinder, 2 4-turntable, 25-finished product box, 26-powder bin, 27-bearing, 28-feeding shaft, 29-feeding plate, 30-powder lowering assembly, 31-fan blades, 32-air duct, 33-air valve, 34-spray welding pipeline, 35-spiral groove, 36-sealing disk, 37-telescopic block, 38-opening and closing rotating shaft, 39-ultrasonic liquid level meter, 40-first photoelectric switch, 41-second photoelectric switch, 42-rope, 43-powder falling pipeline, 44-cylinder, 45-ring, 46-gas valve. DETAILED DESCRIPTION

[0028] like Figure 1 As shown, the wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system includes a storage bin 1, which is an inverted triangle with an opening on the top. A transfer channel 2 is fixedly connected to one side of the storage bin 1, and the transfer channel 2 is a vertical pipe. A gap is opened between the storage bin 1 and the transfer channel 2, and a transfer baffle 4 is fixedly connected above the gap. The transfer baffle 4 is fixedly connected to the inner wall of the storage bin 1, and the opening is tilted downward. Extrusion rotating shafts 5 are also passed through both sides of the bottom of the storage bin 1, and a rotating motor 6 is also fixedly connected to one end of the extrusion rotating shaft 5. The rotating motor 6 is fixedly connected to the outer wall of one side of the storage bin 1. An extrusion plate 7 is also provided at the bottom of the storage bin 1, and the lower end of the extrusion plate 7 is fixedly connected to the surface of the extrusion rotating shaft 5. A rope 42 is connected between the upper end of the extrusion plate 7 and the inner wall of the upper end of the storage bin 1, and the rope 42 is elastic.

[0029] The wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system also includes a feeding conveyor belt 8, which is located below the transfer channel 2 and the storage bin 1. A feeding plate 9 is evenly fixed to the surface of the feeding conveyor belt 8, and the feeding plate 9 is placed obliquely. When the rotating motor 6 starts to rotate forward, the extrusion rotating shaft 5 is driven to rotate forward, and the extrusion plate 7 is squeezed toward the notch side of the transfer channel 2. Under the extrusion of the extrusion plate 7 and the guiding action of the transfer baffle 4, the sucker rod polished rod in the storage bin 1 falls from the transfer channel 2 to the feeding plate 9 on the surface of the feeding conveyor belt 8 in sequence. The feeding plate 9 can only accommodate A sucker rod is provided, and a proximity switch 3 is also provided at the lower part of the transfer channel 2. The proximity switch 3 is used to detect whether there is a sucker rod at the discharge port of the transfer channel 2. When the proximity switch 3 detects that there is no sucker rod at the discharge port of the transfer channel 2, the rotary motor 6 starts to rotate forward to transfer the sucker rod into the transfer channel 2. When the rotary motor 6 rotates reversely, the extrusion plate 7 returns to the bottom of the storage bin 1. The sucker rod in the storage bin 1 falls back to the surface of the extrusion plate 7 under the action of the rope 42. This is repeated to complete the sequential transportation of the sucker rod from the storage bin 1 to the outside.

[0030] The feeding conveyor belt 8 is placed at an angle, and a receiving plate 10 is also provided at the upper end of the feeding conveyor belt 8. The receiving plate 10 is placed at an angle, and a receiving groove 11 is also provided below the receiving plate 10. A first photoelectric switch 40 is provided between the two. The first photoelectric switch 40 is used to detect whether there is a sucker rod slipping in the receiving groove 11. A lifting cylinder 12 is also fixedly connected below the receiving groove 11. When the feeding conveyor belt 8 starts to rotate, it carries the sucker rod through the surface of the receiving plate 10 and falls into the receiving groove 11, and the feeding conveyor belt 8 stops running. A spray welding structure 13 is also provided above the receiving groove 11.

[0031] like Figure 2 As shown, the spray welding structure 13 includes a threaded column 14 and a slide rail 17, which are placed in parallel and not on a vertical plane. A driving column 15 is provided on the surface of the threaded column 14. The driving column 15 is hollow inside and is connected to the threaded column 14 by a thread. A first gear 16 is fixed to the surface of the driving column 15. A rotating groove is also opened on the outer surface of the driving column 15. A ring 45 is embedded in the rotating groove. The ring 45 can rotate in the rotating groove on the outer surface of the driving column 15.

[0032] The slide rail 17 is inlaid with a slider 18 and a clamping block 22. The slider 18, the clamping block 22 and the outer surface of the ring 45 are fixedly connected by a connecting rod. The lower end of the slider 18 is fixedly connected to a conveying motor 19. The outer surface of the driving shaft of the conveying motor 19 is also fixedly connected to a second gear 20. The second gear 20 and the first gear 16 are meshed with each other through teeth. The clamping block 22 is fixedly connected to a clamping cylinder 23 on one side of the slider 18. A turntable 24 is provided on the end surface of the clamping cylinder 23. The turntable 24 can rotate on the end surface of the clamping cylinder 23. A welding coating structure 21 and a second photoelectric switch 41 are also provided between the threaded column 14 and the slide rail 17. The second photoelectric switch 41 is used to detect the position of the sucker rod polished rod reaching here. A finished product box 25 is also provided below the slide rail 17.

[0033] like Figure 3 and Figure 4 As shown, the welding coating structure 21 includes a powder bin 26, a bin cover is sealed above the powder bin 26, a bearing 27 and an ultrasonic level meter 39 are fixedly connected to the lower surface of the bin cover of the powder bin 26, a feeding shaft 28 is provided in the bearing 27, the feeding shaft 28 is located in the powder bin 26, and a spiral blade is fixedly connected to the surface, the ultrasonic level meter 39 is used to detect the liquid level of the alloy powder in the powder bin 26, a powder dropping pipe 43 is connected below the powder bin 26, and a powder lowering assembly 30 is provided therebetween, the powder lowering assembly 30 includes a sealing disk 36, the sealing disk 36 is located on the upper surface of the powder bin 26 discharge port, and blocks the powder bin 26 discharge port, the feeding shaft 28 passes through the center of the sealing disk 36, and divides the sealing disk 36 into two symmetrical parts, a spiral groove 35 is provided in the sealing disk 36, an opening and closing rotating shaft 38 is provided in the spiral groove 35, and a connecting rod is fixedly connected to the upper surface of the opening and closing rotating shaft 38 and the surface of the feeding shaft 28.

[0034] The welding coating structure 21 also includes a cylinder 44, which is fixedly connected to the outer surfaces of both sides of the powder bin 26. The cylinder 44 is hollow inside, one end is closed, and the other end is open. A spring and a telescopic block 37 are arranged in the hollow of the cylinder 44. Normally, under the action of the spring, the end of the telescopic block 37 is abutted against the side of the sealing disk 36. The welding coating structure 21 also includes a feeding tray 29, which is fixedly connected to the bottom of the feeding shaft 28. The surface of the feeding tray 29 is evenly distributed with grooves, and the lower surface of the feeding tray 29 is also fixedly connected with a fan blade 31. An air duct 32 is also fixedly connected to one side of the powder falling pipe 43, and an air valve 33 is also arranged on the air duct 32. A spray welding pipe 34 is also fixedly connected to the discharge port below the powder falling pipe 43, and a gas valve 46 is arranged on the spray welding pipe 34. The gas valve 46 is a proportional valve that can adjust its opening. Combustible gas for heating alloy powder flows in the spray welding pipe 34.

[0035] When the sucker rod polished rod falls into the receiving groove 11, the clamping cylinder 23 extends, and the lifting cylinder 12 retracts, so that the receiving groove 11 is separated from the sucker rod polished rod, and the sucker rod polished rod is clamped between the turntable 24 and the conveying motor 19, and then the conveying motor 19 rotates forward, and the second gear 20 rotates, driving the first gear 16 and the driving column 15 to rotate, and the driving column 15 rotates on the surface of the threaded column 14. Through the meshing of the threads, the driving column 15 and the ring 45 move on the surface of the threaded column 14 toward the side of the welding structure 21, and through the connecting rod between the ring 45, the slider 18 and the clamping block 22, the sucker rod polished rod follows the conveying motor 19 and the clamping block 22 while rotating. , and also moves to the side of the welding coating structure 21. When the second photoelectric switch 41 detects that the head end of the sucker rod has arrived here, the gas valve 46 is opened, and the combustible gas is sprayed out of the spray welding pipe 34. The air valve 33 is opened. Under the action of siphon, a certain flow of gas enters the air pipe 32. An automatic ignition device is provided under the spray welding pipe 34 to ignite the mixed gas of air and combustible gas. At the same time, the fan blade 31 rotates in a specific direction under the blowing of the air, driving the feed shaft 28 to rotate. The feed shaft 28 rotates, and the connecting rod fixedly connected to the upper surface of the opening and closing rotating shaft 38 and the surface of the feed shaft 28 drives the opening and closing rotating shaft 38 to move in the spiral groove 35, that is, from The edge of the sealing disk 36 rotates toward its center, forcing the center of the sealing disk 36 to move away from the feeding shaft 28, so that the sealing disk 36 passes through the telescopic block 37, compresses the spring in the cylinder 44 and separates to both sides, opens the discharge port of the powder bin 26 below the sealing disk 36, and the alloy powder in the powder bin 26 falls into the spray welding pipe 34 for high-temperature burning, and the surface of the sucker rod is alloy-plated. By controlling the opening size of the gas valve 46, the intake flow of the combustible gas and air is adjusted, and then the rotation speed of the feeding shaft 28 is controlled to control the amount of alloy powder falling in the powder bin 26. When the second photoelectric switch 41 detects that the end of the sucker rod reaches At this point, the gas valve 46 and the air valve 33 are closed, the feed shaft 28 stops rotating, and the sealing disk 36, under the action of the spring in the cylinder 44, rotates the opening and closing rotating shaft 38 in the reverse rotating spiral groove 35 to reverse recovery, and the sealing disks 36 are close to each other and recovered, thereby sealing the discharge port of the powder bin 26, the clamping cylinder 23 retracts, and the lifting cylinder 12 extends and recovers upward, and the sucker rod that has been plated and spray-welded falls into the finished product box 25 for storage, and then the conveying motor 19 rotates in the opposite direction, driving the driving column 15 and the clamping block 22 to recover to the top of the receiving groove 11 again, and continues to transport the new sucker rod to the welding structure 21 for spray welding and plating, and repeats this process.

[0036] like Figure 5As shown, the wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system also includes a central controller, which is connected to an input part and an output part. The central controller is used to receive data detected by the input part and send operating instructions to the output part to realize the automatic operation of each part in the wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system. The central controller is also connected to a display screen, which is used to display the operating status and parameters of each part in the wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system.

[0037] The input part includes a proximity switch, an ultrasonic level meter, a first photoelectric switch and a second photoelectric switch. The input part is used to monitor the operating data in the wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system. The output part includes a rotating motor, a feeding conveyor belt, a lifting cylinder, a conveying motor, a clamping cylinder, an air valve and a gas valve. The central controller sends an operating instruction to the output part through the operating data detected by the input part to realize the automatic operation of the wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system.

[0038] The description of the present invention is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the invention to the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the invention and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for specific uses.

Claims

1. Wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system, characterized by: It comprises a material storage bin (1) and a feeding conveyor belt (8), the material storage bin (1) is in the shape of an inverted triangle with an opening at the top, a transfer channel (2) is fixedly connected to one side of the material storage bin (1), and the transfer channel (2) is in the shape of a vertical pipe; The feeding conveyor belt (8) is located below the transfer channel (2) and the storage bin (1), the feeding conveyor belt (8) is placed at an angle, a receiving plate (10) is provided at the upper end of the feeding conveyor belt (8), the receiving plate (10) is placed at an angle, a receiving groove (11) is provided below the receiving plate (10), and a spray welding structure (13) is provided above the receiving groove (11); The spray welding structure (13) comprises a threaded column (14) and a slide rail (17), which are placed in parallel and not on a vertical plane. A driving column (15) is provided on the outer surface of the threaded column (14). The driving column (15) is hollow inside and is connected to the threaded column (14) by a thread. A first gear (16) is fixedly connected to the outer surface of the driving column (15). A rotating groove is also formed on the outer surface of the driving column (15). A ring (45) is also embedded in the rotating groove. The ring (45) rotates in the rotating groove on the outer surface of the driving column (15). A welding coating structure (21) and a second photoelectric switch (41) are also provided between the threaded column (14) and the slide rail (17). The slide rail (17) is inlaid with a slider (18) and a clamping block (22); the slider (18), the clamping block (22) and the outer surface of the ring (45) are fixedly connected via a connecting rod; a conveying motor (19) is fixedly connected to the lower end of the slider (18); a second gear (20) is also fixedly connected to the outer surface of the driving shaft of the conveying motor (19); and the second gear (20) and the first gear (16) are meshed with each other via teeth; A clamping cylinder (23) is fixedly connected to a surface of one side of the clamping block (22) relative to the sliding block (18), a turntable (24) is provided on the end surface of the clamping cylinder (23), and the turntable (24) rotates on the end surface of the clamping cylinder (23), and a finished product box (25) is also provided below the sliding rail (17); The welding coating structure (21) comprises a powder bin (26), a bin cover is sealed above the powder bin (26), a bearing (27) and an ultrasonic level meter (39) are fixedly connected to the lower surface of the bin cover of the powder bin (26), a feeding shaft (28) is arranged in the bearing (27), the feeding shaft (28) is located in the powder bin (26), a spiral blade is fixedly connected to the surface, a powder dropping pipe (43) is connected below the powder bin (26), and a powder dropping assembly (30) is arranged between the two; The powder discharge assembly (30) comprises a sealing disk (36), the sealing disk (36) being located on the upper surface of the discharge opening of the powder bin (26) and blocking the discharge opening of the powder bin (26), the feeding shaft (28) penetrating the center of the sealing disk (36) and dividing the sealing disk (36) into two symmetrical parts, the sealing disk (36) being provided with a spiral groove (35), the spiral groove (35) being provided with an opening and closing rotating shaft (38), and a connecting rod being fixedly connected to the upper surface of the opening and closing rotating shaft (38) and the surface of the feeding shaft (28); The welding coating structure (21) further comprises a cylinder (44), which is fixedly connected to the outer surfaces of both sides of the powder bin (26). The cylinder (44) is hollow inside, one end is closed and the other end is open. A spring and a telescopic block (37) are arranged in the hollow of the cylinder (44), and the end of the telescopic block (37) abuts against the side of the sealing disk (36). The welding coating structure (21) further comprises a feeding disk (29), which is fixedly connected to the bottom of the feeding shaft (28). The surface of the feeding disk (29) is evenly distributed with grooves, and the lower surface of the feeding disk (29) is also fixedly connected with a fan blade (31). One side of the powder dropping pipeline (43) is also fixedly connected with an air pipeline (32), and the air pipeline (32) is also provided with an air valve (33). A spray welding pipeline (34) is also fixedly connected to the discharge port below the powder dropping pipeline (43), and a gas valve (46) is provided on the spray welding pipeline (34). The gas valve (46) is a proportional valve.

2. The wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system according to claim 1, characterized in that: A gap is formed between the storage bin (1) and the transfer passage (2), a transfer baffle (4) is fixedly connected above the gap, the transfer baffle (4) is fixedly connected to the inner wall of the storage bin (1), and the opening is tilted downward. Extrusion rotating shafts (5) are also passed through the two sides of the bottom of the storage bin (1), and a rotating motor (6) is also fixedly connected to one end of the extrusion rotating shaft (5). The rotating motor (6) is fixedly connected to the outer wall of one side of the storage bin (1). An extrusion plate (7) is also provided at the bottom of the storage bin (1), the lower end of the extrusion plate (7) is fixedly connected to the surface of the extrusion rotating shaft (5), and a rope (42) is connected between the upper end of the extrusion plate (7) and the inner wall of the upper end of the storage bin (1), and the rope (42) is elastic.

3. The wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system according to claim 1, characterized in that: A loading plate (9) is evenly fixed to the surface of the loading conveyor belt (8), the loading plate (9) is placed at an angle, and a proximity switch (3) is also provided at the lower part of the transfer channel (2); A first photoelectric switch (40) is provided between the receiving plate (10) and the receiving groove (11), and a lifting cylinder (12) is also fixedly connected below the receiving groove (11).

4. The wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system according to claim 1, characterized in that: It also includes a central controller, which is connected to an input part and an output part. The central controller is used to receive data detected by the input part and send operating instructions to the output part to realize the automatic operation of each part of the wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system. The central controller is also connected to a display screen, which is used to display the operating status and parameters of the wear-resistant and corrosion-resistant sucker rod polished rod automatic spray welding control system.

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