Balloon ring spraying device for high-wear-resistance metal ceramic coating

Abstract

The invention relates to the technical field of plasma spraying, in particular to a balloon ring spraying device for a high-wear-resistance metal ceramic coating, which comprises a base, a central column is mounted at the top of the base, three partition plates are fixed on the central column at equal angles, a shell is mounted at the top of the base, and a through hole is formed in one side of the shell; fixing frames are symmetrically installed at the positions, located on the two sides of the through opening, of the outer portion of the shell, a supporting frame is arranged below the fixing frames, a multi-station device is installed on the center column, alternating devices are installed on the fixing frames, and an automatic replacing device is installed on the supporting frame. And a connecting port of the spray gun is cleaned while the nozzle is quickly replaced, so that the overall process efficiency and the quality reliability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plasma spraying, in particular to a gas ring spraying device for high-wear-resistant cermet coating. BACKGROUND

[0002] The gas ring is a key metal component for controlling the shape of the yarn loop in the spinning process. Its main function is to stabilize the yarn loop formed during the twisting and winding process through physical restraint or airflow guidance, thereby improving spinning quality and efficiency. In order to reduce damage and prolong the service life of the gas ring, plasma spraying technology can be used to spray the surface of the gas ring, forming a high-wear-resistant cermet coating on the surface of the gas ring. The existing device has a long waiting time between different processes, resulting in low production efficiency. In order to ensure the quality of spraying, the surface of the gas ring usually needs to be sandblasted. The workpiece handling and repositioning between different processes require a lot of time, which can cause the sandblasted gas ring to be oxidized or contaminated again. The existing cermet coating can only be simply covered on the surface of the gas ring, resulting in poor adhesion of the cermet coating and affecting the service life of the subsequent gas ring. In addition, the spraying nozzle in the spraying device is a key consumable. Once damaged, the entire production line needs to be stopped for replacement, causing production to stop. Based on this, the present application discloses a gas ring spraying device for high-wear-resistant cermet coating. SUMMARY

[0003] To solve the problem of the existing device in the background art, the waiting time between different processes is long, resulting in low production efficiency. In order to ensure the quality of spraying, the surface of the gas ring usually needs to be sandblasted. The workpiece handling and repositioning between different processes require a lot of time, which can cause the sandblasted gas ring to be oxidized or contaminated again. The existing cermet coating can only be simply covered on the surface of the gas ring, resulting in poor adhesion of the cermet coating and affecting the service life of the subsequent gas ring. In addition, the spraying nozzle in the spraying device is a key consumable. Once damaged, the entire production line needs to be stopped for replacement, causing production to stop. The present application provides a gas ring spraying device for high-wear-resistant cermet coating, which includes a base, a center column mounted on the top of the base, three partition plates fixed at equal angles on the center column, an outer shell mounted on the top of the base, a through opening formed on one side of the outer shell, a fixed frame installed on the outer side of the outer shell on both sides of the through opening, and a support frame arranged below the fixed frame. A multi-station device is installed on the center column, an alternating device is installed on the fixed frame, and an automatic replacement device is installed on the support frame.

[0004] As a further improvement of the technical solution, the multi-station device comprises a swing seat, an annular connecting rail, a rotating ring, a clamping seat, a rotating roller and a first small motor, swing seats are rotatably installed between every two of the partition plates, the swing seat is rotatably installed on the acting end of the swing seat through a rotating shaft, the annular connecting rail is internally provided with a rotating cavity, and the rotating cavity is internally provided with a rotating ring, the rotating ring is fixedly connected with a clamping seat, a plurality of rotating rollers are installed in the rotating cavity, and the first small motor is installed on the structure surface of the annular connecting rail, and the output shaft end of the first small motor is connected with one of the rotating rollers.

[0005] As a further improvement of the technical solution, the multi-station device further comprises a first gear and a first motor, a first gear is sleeved on the outside of the rotating shaft between the swing seat and the annular connecting rail, a first motor is arranged on the top of the swing seat, the output shaft end of the first motor is connected with a second gear, the second gear is engaged with the first gear, and a discharging port is arranged on the position close to the through port of the shell, and the angle between the discharging port and the through port is 120 degrees.

[0006] As a further improvement of the technical solution, the alternating device comprises a reciprocating frame, a plasma ceramic spray gun, a nozzle and a sand blasting gun, the reciprocating frame is rotatably installed on the fixed frame, the reciprocating frame is in the shape of a quarter circle, a plasma ceramic spray gun is installed on one of the plates in the reciprocating frame, a nozzle is installed on the working end of the plasma ceramic spray gun, a sand blasting gun is installed on the other plate in the reciprocating frame, and a driving power source is installed on one side of the fixed frame.

[0007] As a further improvement of the technical solution, the automatic replacement device comprises a pulling cavity, an insertion block, a connecting rod, a limiting block, an insertion ring and a positioning short rod, an insertion hole is arranged on the connecting seat of the plasma ceramic spray gun, an insertion ring is fixedly connected to the end of the nozzle away from the discharging port, fixing holes are symmetrically arranged on the two sides of the insertion ring, the insertion ring is inserted into the plasma ceramic spray gun, pulling cavities are symmetrically arranged on the two side structure surfaces of the connecting seat of the plasma ceramic spray gun, the pulling cavities are communicated with the insertion holes, the pulling cavities are internally provided with insertion blocks, the connecting rod is installed on the end of the insertion block away from the insertion hole, the end of the connecting rod is fixedly connected with the limiting block, the connecting rod is externally sleeved with a first limiting spring, in the natural state of the first limiting spring, the acting end of the insertion block enters the insertion hole and the fixing hole of the insertion ring, a limiting ring piece is sleeved on the connection position of the nozzle and the insertion ring, and positioning short rods are symmetrically fixedly connected on the limiting ring.

[0008] As a further improvement of the technical solution, the automatic replacement device comprises a fixed frame, a sliding block, a first moving frame, a limiting rod, a second moving frame, a guide plate, a supporting block and a supporting rod, the top of the supporting frame is provided with the fixed frame, the top end face and the bottom end face of the fixed frame are symmetrically provided with sliding grooves, the sliding grooves are internally provided with the sliding blocks, the sliding blocks on the top of the fixed frame are fixedly connected with the first moving frame, the limiting rods are symmetrically fixedly connected to the inner walls of the two side plates of the first moving frame, the sliding blocks on the bottom of the fixed frame are fixedly connected with the second moving frame, the second moving frame is internally rotatably provided with the guide plate, the bottom of the plate body of the guide plate is fixedly connected with the supporting plate away from the weight block, the two side plates of the second moving frame are symmetrically provided with the supporting blocks on the opposite surfaces, the height of the supporting blocks is higher than the height of the rotating point of the guide plate, the second moving frame is symmetrically provided with the communicating holes on the plate away from the first moving frame, and the communicating holes are internally provided with the supporting rods.

[0009] As a further improvement of the technical solution, the guide plate is provided with a cleaning assembly, the cleaning assembly comprises a second small motor, the guide plate is provided with a structure surface of a spiral blade, the second small motor is fixedly connected to the structure surface through a mounting frame, the top of the output shaft of the second small motor is provided with a reciprocating screw rod, the top of the reciprocating screw rod is provided with a lifting cavity, the lifting cavity is internally provided with a central shaft, the top end of the central shaft is provided with a spiral blade, the outer part of the cross section of the reciprocating screw rod is provided with a lifting ring, the bottom of the lifting ring is symmetrically provided with a telescopic rod, the top of the lifting ring is symmetrically fixedly connected with a pushing rod, the top of the pushing rod is fixedly connected with a pushing ring, the inside of the pushing ring is provided with a rotating groove, the outer part of the cross section of the central shaft is fixedly provided with a fixed disc, and the fixed disc rotates in the rotating groove.

[0010] As a further improvement of the technical solution, one side of the fixed frame is provided with a second motor, the output shaft end of the second motor is provided with a rotating frame, the two ends of the frame body of the rotating frame are provided with structure grooves, the same side of the first moving frame and the second moving frame is fixedly connected with a connecting buckle, the two ends of the rotating frame are respectively provided in the connecting buckles of the first moving frame and the second moving frame through the structure grooves, and the connecting buckles can move in the structure grooves.

[0011] As a further improvement of the technical solution, the frame body of the supporting frame is provided with a pushing and feeding assembly, the pushing and feeding assembly comprises an electric push rod, a pushing seat, a placing plate, a fixed shaft, a reciprocating plate and a pushing frame, the top of the electric push rod is provided with the pushing seat, the top of the pushing seat is symmetrically fixedly connected with a guide cylinder, the top of the electric push rod is provided with the placing plate on the plate body of the supporting frame, the plate body of the placing plate is provided with a pushing groove, and the plate body of the placing plate is symmetrically provided with guide grooves on the two sides of the pushing groove.

[0012] As a further improvement of the technical solution, the support frame is symmetrically and fixedly connected with a fixed shaft on both sides of the placing plate, the outer part of the cross section of the shell is slidably sleeved with a reciprocating plate, the top end surface of the reciprocating plate is lower than the bottom end surface of the placing plate, the end of the reciprocating plate body close to the first moving frame is fixedly connected with a pushing frame, the thickness of the pushing frame is the same as the thickness of the reciprocating plate, the plate body top plate of the reciprocating plate close to the rotating frame is equidistantly and fixedly connected with a pawl, the rod body of the rotating frame is fixedly connected with a pushing rod, the bottom end of the pushing rod is hingedly connected with a pawl, the track of the pawl on the pushing rod swinging with the pushing rod intersects with the moving track of the pawl on the top of the reciprocating plate, the outer part of the cross section of one end of the fixed shaft is sleeved with a second limiting spring, one end of the second limiting spring is connected to the reciprocating plate, and the other end is connected to the body of the support frame, the side of the support frame close to the pushing rod is fixedly connected with a connecting plate, and the connecting plate is provided with an anti-withdrawal rod.

[0013] Compared with the prior art, the present application has the following advantages: 1. In the air ring ring spraying device of the high wear-resistant metal ceramic coating, through the cooperation of the multi-station device, multiple processes are carried out at the same time, the spraying operation and the preparation of feeding and discharging are carried out in parallel, and the production efficiency is improved.

[0014] 2. In the air ring ring spraying device of the high wear-resistant metal ceramic coating, through the cooperation of the alternating device, the sand blasting pretreatment process and the spraying process are integrated in the same operation cabin, spraying is realized immediately after the treatment is completed, the problem of secondary pollution caused by waiting after surface treatment is solved, the number of workpiece handling and positioning is reduced, and the overall process efficiency and quality reliability are improved.

[0015] 3. In the air ring ring spraying device of the high wear-resistant metal ceramic coating, through the cooperation of the automatic replacement device, the spraying nozzle is replaced quickly, the connecting port of the spray gun is cleaned at the same time, the coating is prevented from being cooled and solidified at the connecting position, the wear part can be replaced to the best state at any time, the spraying flame and powder focus are ensured to be at the design level at all times, the quality of the metal ceramic coating is fundamentally guaranteed, the subsequent spraying operation is ensured to be carried out smoothly, and the entire production flow line is ensured to be continuously operated without stopping for replacement. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the structure of the ring-shaped connecting rail of the present application; Figure 3 It is a schematic diagram of the structure of the reciprocating frame installation position of the present application; Figure 4 It is a schematic diagram of the structure of the connection mode of the plasma ceramic spray gun and the spray nozzle of the present application; Figure 5 It is the structure schematic view of the installation position of the rotating frame and the poking rod of the application; Figure 6 It is the structure schematic view of the inside of the fixed frame of the application; Figure 7 It is the structure schematic view of the sliding block and the first moving frame of the application; Figure 8 It is the structure schematic view of the placing plate and the reciprocating plate of the application.

[0017] The meaning of each number in the figure is: 1, base; 2, center column; 3, partition plate; 4, shell; 5, fixed frame; 6, support frame; 7, swing seat; 8, annular connecting rail; 9, rotating ring; 10, clamping seat; 11, rotating roller; 12, first small motor; 13, No. 1 gear; 14, No. 1 motor; 15, reciprocating frame; 16, plasma ceramic spray gun; 17, nozzle; 18, sand blasting gun; 19, pulling cavity; 20, insertion block; 21, connecting rod; 22, limiting block; 23, insertion ring; 24, positioning short rod; 25, fixed frame; 26, sliding block; 27, first moving frame; 28, limiting rod; 29, second moving frame; 30, guide plate; 31, No. 2 small motor; 32, reciprocating screw rod; 33, center shaft; 34, spiral blade; 35, supporting block; 36, supporting rod; 37, electric push rod; 38, pushing seat; 39, placing plate; 40, fixed shaft; 41, reciprocating plate; 42, pushing frame; 43, No. 2 motor; 44, rotating frame; 45, poking rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0019] Therefore, the application provides a gas ring spraying device for high-wear-resistant metal ceramic coating, which is shown in Figures 1-4As shown, it includes the base 1, the top of the base 1 is mounted with the center column 2, the center column 2 is fixed with three partition plates 3 at equal angles, the top of the base 1 is mounted with the shell 4, the shell 4 is provided with a through hole on one side, the shell 4 is provided with the fixing frame 5 on the outside of the both sides of the through hole, and the fixing frame 5 is provided with the support frame 6 below; the inside of the base 1 is provided with a driving power supply, which can drive the center column 2 to rotate periodically and intermittently, the partition plate 3 rotates with the center column 2, the rotating end of the partition plate 3 slides along the inner wall surface of the shell 4, the bottom of the swing seat 7 is mounted with an electric push rod, which can adjust the angle of the annular connecting rail 8, and then adjust the position of the air ring spraying point, so as to meet different production needs.

[0020] The center column 2 is provided with a multi-station device, the fixing frame 5 is provided with an alternating device, and the support frame 6 is provided with an automatic replacement device.

[0021] The multi-station device comprises the swing seat 7, the annular connecting rail 8, the rotating ring 9, the clamping seat 10, the rotating roller 11 and the first small motor 12, the swing seat 7 is rotatably installed between every two partition plates 3, the swing seat 7 is rotatably installed with the annular connecting rail 8 through the rotating shaft at the acting end, the annular connecting rail 8 is provided with a rotating cavity in the inside, and the rotating cavity is provided with the rotating ring 9 in the inside, the rotating ring 9 is fixedly connected with the clamping seat 10, a plurality of rotating rollers 11 are installed in the rotating cavity, the first small motor 12 is installed on the structure surface of the annular connecting rail 8, and the output shaft end of the first small motor 12 is connected with one of the rotating rollers 11. The arc surface of the rotating roller 11 is in contact with the ring body of the rotating ring 9, the first small motor 12 operates, the rotating roller 11 rotates, and the rotating ring 9 can be rotated.

[0022] The multi-station device further comprises a gear 13 and a motor 14, the gear 13 is arranged on the outside of the rotating shaft section between the swing seat 7 and the annular connecting rail 8, the motor 14 is arranged on the top of the swing seat 7, the output shaft end of the motor 14 is connected with a second gear, the second gear is engaged with the gear 13, and the shell 4 is provided with a feeding opening near the through hole, and the angle between the feeding opening and the through hole is 120 degrees. The motor 14 operates, the second gear drives the gear 13 to rotate, realizes the overturning effect of the annular connecting rail 8, and realizes the overturning effect in the air ring spraying process.

[0023] In operation, through the structural design of the multi-station device, when spraying the air ring, the air ring can be first fixed on the clamping seat 10 through the feeding opening, the central column 2 is rotated, the swing seat 7 drives the annular connecting rail 8 to rotate, and the air ring can be processed simultaneously. At the same time, the first small motor 12 operates, the rotating roller 11 rotates, and the rotating ring 9 drives the clamping seat 10 and the air ring to rotate with the center point of the annular connecting rail 8 as the center. When the other side of the air ring is sprayed, the first motor 14 is started, the second gear is rotated, and the air ring on the annular connecting rail 8 is turned over under the cooperation of the first gear 13, realizing the spraying of different surfaces of the air ring, ensuring that the metal ceramic coating can completely cover the surface of the air ring. After the air ring is completed, it is returned to the feeding opening position. In the intermittent rotation of the annular connecting rail 8 and the central column 2, the sprayed air ring can be taken out, and the unsprayed air ring can be fixed on the clamping seat 10, waiting for the next process. The spraying operation and the preparation of feeding and discharging are carried out in parallel, improving the production efficiency.

[0024] Further, as shown in Figure 1 、 Figure 3 , the alternating device includes a reciprocating frame 15, a plasma ceramic spray gun 16, a nozzle 17, and a sand blasting gun 18. The reciprocating frame 15 is rotatably installed on the fixed frame 5, and the shape of the reciprocating frame 15 is a quarter circle. The plasma ceramic spray gun 16 is installed on one of the plates in the reciprocating frame 15, and the operating end of the plasma ceramic spray gun 16 is provided with the nozzle 17. The sand blasting gun 18 is installed on the other plate in the reciprocating frame 15, and the driving power supply is installed on one side of the fixed frame 5. The plasma ceramic spray gun 16 can further increase the roughness of the air ring surface during spraying on the basis of sand blasting operation, deepen the fusion degree between the ceramic spraying powder material and the metal base material, and enhance the adhesion of the metal ceramic coating. When the sand blasting gun 18 operates, the operating end of the nozzle 17 is in a vertical state downward, and when the nozzle 17 operates, the operating end of the sand blasting gun 18 is in a vertical state upward. The sand blasting gun 18 and the nozzle 17 operate alternately, so that the operating points of the sand blasting gun 18 and the nozzle 17 sprayed to the air ring remain at the same position. Since the rotation angle of the air ring does not change, the sand blasting treatment and the spraying of the coating on the same circle of the ring body are consistent. Therefore, when the air ring is treated or sprayed, the treatment and spraying of the entire ring body are uniformly covered on the outside of the ring body, and the uniform coating can effectively protect the position where the wires are connected, ensuring the production quality.

[0025] In operation, through the cooperation of the alternate device, after the air ring ring follows the center column 2 to rotate into the operating range of the fixing frame 5, the sand blasting gun 18 first performs sand blasting treatment on the surface of the air ring ring in the gap where the center column 2 stops rotating, so that the subsequent metal ceramic coating can be more firmly attached to the air ring ring. In this process, the first small motor 12 drives the rotating roller 11 to rotate, so that the clamping seat 10 and the air ring ring are always in a rotating state, ensuring the uniformity of the sand blasting and metal ceramic coating operation. After the sand blasting treatment is completed, the driving power source drives the reciprocating frame 15 to rotate, so that the plasma ceramic spray gun 16 and the nozzle 17 are rotated to a horizontal state. The plasma ceramic spray gun 16 operates, and a certain degree of mutual melting occurs between the ceramic spray powder material and the metal substrate, thereby enhancing the bonding strength between the coating and the substrate. The coating will undergo a transition process from liquid to solid, and finally tightly bond with the metal substrate to form a bonded metal layer with the required performance, thereby enhancing the adhesion and wear resistance of the coating. The processed air ring ring is immediately sprayed, reducing the number of workpiece handling and positioning, avoiding the problem of secondary pollution caused by waiting, and improving the overall process efficiency and quality reliability.

[0026] As shown in FIGS. 1-3, Figure 1 、 Figures 4-8 As shown in FIGS. 1-3, the automatic replacement device comprises a pulling cavity 19, an insertion block 20, a connecting rod 21, a limiting block 22, an insertion ring 23, and a positioning short rod 24. The connecting seat of the plasma ceramic spray gun 16 is provided with an insertion hole. The end of the nozzle 17 away from the discharge port is fixedly connected with the insertion ring 23. The two sides of the insertion ring 23 are symmetrically provided with fixed holes. The insertion ring 23 is inserted into the interior of the plasma ceramic spray gun 16. The two sides of the structure surface of the connecting seat of the plasma ceramic spray gun 16 are symmetrically provided with the pulling cavity 19, which is in communication with the insertion hole. The interior of the pulling cavity 19 is provided with the insertion block 20. The end of the insertion block 20 away from the insertion hole is provided with the connecting rod 21. The end of the connecting rod 21 is fixedly connected with the limiting block 22. The cross-section of the connecting rod 21 is externally provided with a first limiting spring. In the natural state of the first limiting spring, the acting end of the insertion block 20 enters the interior of the insertion hole and the fixed hole of the insertion ring 23. The connecting position of the nozzle 17 and the insertion ring 23 is externally provided with a limiting ring piece. The limiting ring piece is symmetrically fixedly connected with the positioning short rod 24. The insertion ring 23 can be aligned with the insertion hole, and an acting force towards the plasma ceramic spray gun 16 can be applied to the nozzle 17. After the insertion ring 23 enters the insertion hole, the insertion block 20 is inserted into the fixed hole in the interior of the insertion ring 23 under the action of the first limiting spring, so as to quickly fix the nozzle 17 on the plasma ceramic spray gun 16.

[0027] The automatic replacement device comprises a fixed frame 25, sliding blocks 26, a first moving frame 27, limiting rods 28, a second moving frame 29, a guide plate 30, supporting blocks 35, supporting rods 36, the top of the supporting frame 6 is provided with the fixed frame 25, the top end face and the bottom end face of the fixed frame 25 are symmetrically provided with sliding grooves, the sliding grooves are internally provided with the sliding blocks 26, the sliding blocks 26 on the top of the fixed frame 25 are fixedly connected with the first moving frame 27, the limiting rods 28 are symmetrically fixedly connected to the inner walls of the two side plates of the first moving frame 27, the sliding blocks 26 on the bottom of the fixed frame 25 are fixedly connected with the second moving frame 29, the second moving frame 29 is internally rotatably provided with the guide plate 30, the bottom of the plate body of the guide plate 30 is fixedly connected with a supporting plate away from the weight block, the second moving frame 29 is symmetrically provided with the supporting blocks 35 on the opposite surfaces of the two side plates, the horizontal height of the supporting blocks 35 is higher than the height of the rotating point of the guide plate 30, the second moving frame 29 is symmetrically provided with communicating holes on the plate body away from the first moving frame 27, and the communicating holes are internally provided with the supporting rods 36, and the end of the supporting rods 36 away from the placing plate 39 is fixedly connected to the fixed frame 25. The width of the supporting plate on the bottom of the guide plate 30 is less than the width between the supporting rods 36, when the second moving frame 29 is located at the end of the fixed frame 25, the supporting rods 36 are in contact with the plate body below the guide plate 30, so that the guide plate 30 is in a vertical state, when the guide plate 30 is not in contact with the supporting rods 36, the weight block on the guide plate 30 can make the top of the guide plate 30 be in a downward inclined state, the supporting blocks 35 can make the guide plate 30 be inclined at a fixed angle, when the guide plate 30 is located below the plasma ceramic spray gun 16, the damaged nozzle 17 falling off can be caught, the nozzle 17 falls on the supporting plate along the inclined surface of the guide plate 30, under the action of the weight of the nozzle 17, the guide plate 30 rotates to the vertical state, which facilitates the smooth operation of the subsequent cleaning assembly, when the second moving frame 29 is reset after the operation is completed, the second moving frame 29 drives the vertical guide plate 30 and the nozzle 17 on the supporting plate to move to the supporting rods 36, the supporting rods 36 enter the inside of the placing plate 39 through the communicating holes and are pressed at the bottom of the nozzle 17, so that the nozzle 17 can be lifted on the top of the supporting rods 36, when the second moving frame 29 moves next time, the nozzle 17 on the supporting rods 36 will fall off, so that the nozzle 17 is prevented from being accumulated in the automatic replacement device.

[0028] The guide plate 30 is provided with a cleaning assembly, which comprises a No. 2 small motor 31. The No. 2 small motor 31 is fixed on the structure surface of the guide plate 30 provided with the helical blade 34 through a mounting frame. The top of the output shaft of the No. 2 small motor 31 is provided with a reciprocating screw rod 32. The top of the reciprocating screw rod 32 is provided with a lifting cavity. The inside of the lifting cavity is provided with a central shaft 33. The top of the central shaft 33 is provided with the helical blade 34. The outer part of the cross section of the reciprocating screw rod 32 is provided with a lifting ring. The bottom of the lifting ring is symmetrically provided with an extension rod. The top of the lifting ring is symmetrically provided with a push rod. The top of the push rod is fixedly connected with a push ring. The inside of the push ring is provided with a rotating groove. The outer part of the cross section of the central shaft 33 is fixedly provided with a fixed disc. The fixed disc rotates in the rotating groove. After the nozzle 17 is disassembled and the guide plate 30 returns to the vertical state, the No. 2 small motor 31 operates immediately. The reciprocating screw rod 32 rotates. The central shaft 33 and the helical blade 34 rotate simultaneously. At the same time, under the cooperation of the extension rod and the fixed disc, the lifting ring and the push rod push the central shaft 33 and the helical blade 34 to move upwards. In the process of continuous rotation of the helical blade 34, the helical blade 34 moves towards the plasma ceramic spray gun 16. The coating residue at the connection position of the plasma ceramic spray gun 16 can be cleaned, which facilitates the rapid connection of the subsequent nozzle 17 and ensures the subsequent spraying effect.

[0029] The side plate of the fixed frame 25 is provided with a No. 2 motor 43. The output shaft end of the No. 2 motor 43 is provided with a rotating frame 44. The frame body of the rotating frame 44 is provided with a structure groove at both ends. The same side of the first moving frame 27 and the second moving frame 29 is fixedly connected with a connecting buckle. The both ends of the rotating frame 44 are respectively provided with a structure groove and are provided with a connecting buckle on the first moving frame 27 and the second moving frame 29. The connecting buckle can move in the structure groove. The No. 2 motor 43 operates. The rotating frame 44 rotates. Under the cooperation of the sliding block 26, the driving force for the horizontal movement of the first moving frame 27 and the second moving frame 29 is provided.

[0030] The supporting frame 6 is provided with a pushing and feeding assembly between the frame bodies, and the pushing and feeding assembly comprises an electric push rod 37, a pushing seat 38, a placing plate 39, a fixing shaft 40, a reciprocating plate 41 and a pushing frame 42. The top of the electric push rod 37 is provided with the pushing seat 38. The top of the pushing seat 38 is symmetrically provided with a guide cylinder. The top of the plate body of the supporting frame 6 is provided with the placing plate 39. The plate body of the placing plate 39 is provided with a pushing groove. The plate body of the placing plate 39 is symmetrically provided with a guide groove on both sides of the pushing groove. The guide groove on the placing plate 39 can ensure that the angle of the standby nozzle 17 moving to the top of the sand blasting gun 18 is fixed. During the upward movement of the pushing seat 38, the positioning short rod 24 can be inserted into the guide cylinder on the pushing seat 38, so that the nozzle 17 is pushed to the plasma ceramic gun 16 at a fixed angle, and the insertion block 20 can be smoothly inserted into the fixing hole on the insertion ring 23, thereby realizing the effect of automatic positioning and fixing during the installation of the nozzle 17. The reciprocating plate 41 and the pushing frame 42 move once, and then a standby nozzle 17 enters the top of the pushing seat 38, thereby preparing for the installation of the subsequent nozzle 17, realizing the effect of automatic feeding, avoiding the phenomenon that the staff still needs to assist in operation after the single replacement component is consumed, increasing the number of replaceable components, achieving long-time manual operation of the nozzle 17, and prolonging the time of the staff assisting in replacement.

[0031] The support frame 6 is symmetrically fixed with a fixed shaft 40 on both sides of the placement plate 39, the outer section of the shell 4 is slidably sleeved with a reciprocating plate 41, the top end surface of the reciprocating plate 41 is lower than the bottom end surface of the placement plate 39, the end of the reciprocating plate 41 close to the first moving frame 27 is fixedly connected with a pushing frame 42, the thickness of the pushing frame 42 is the same as the thickness of the reciprocating plate 41, the top plate of the reciprocating plate 41 close to the rotating frame 44 is equidistantly fixedly connected with a pawl, the rod of the rotating frame 44 is fixedly connected with a driving rod 45, the bottom end of the driving rod 45 is hingedly connected with a pawl, the track of the pawl on the driving rod 45 swinging with the driving rod 45 intersects with the moving track of the pawl on the top of the reciprocating plate 41, the outer section of one end of the fixed shaft 40 is sleeved with a second limiting spring, one end of the second limiting spring is connected to the reciprocating plate 41, and the other end is connected to the frame of the support frame 6, the side of the support frame 6 close to the driving rod 45 is fixedly connected with a connecting plate, and the connecting plate is provided with an anti-back rod. In the process that the No. 2 motor 43 drives the rotating frame 44 to rotate, the driving rod 45 also rotates, when the nozzle 17 is disassembled, the driving rod 45 rotates upward with the rotating frame 44, when the nozzle 17 is disassembled and the first moving frame 27 and the second moving frame 29 are reset, the driving rod 45 drives the pawl thereon to rotate downward, under the cooperation of the pawl on the top of the reciprocating plate 41, the reciprocating plate 41 and the pushing frame 42 are pushed to the second moving frame 29 direction for a distance, spare nozzles 17 on the placement plate 39 are gradually pushed to the top of the pushing seat 38, when the electric push rod 37 moves upward, the pushing seat 38 can push the nozzle 17 thereon to the plasma ceramic spray gun 16, the effect of automatic installation is realized, and when the reciprocating plate 41 moves to the second moving frame 29, the second limiting spring is continuously stretched and generates a reaction force, so that the reciprocating plate 41 has a reset tendency, and the anti-back rod on the connecting plate can assist in preventing the reciprocating plate 41 from returning to the original position, thereby ensuring the continuity of the feeding operation.

[0032] When working, through the structural design of the automatic replacement device, when the spraying quality is reduced due to the loss of the nozzle 17, the nozzle 17 that is not working can be replaced when the sand blasting gun 18 is working, the second motor 43 is started, the rotating frame 44 rotates, the first moving frame 27 and the second moving frame 29 are moved towards each other, in the process that the first moving frame 27 moves towards the nozzle 17, the limiting rod 28 first contacts the inclined surface of the limiting block 22, at the same time, the second moving frame 29 drives the guide plate 30 to move, the guide plate 30 is in an inclined state when it moves to the bottom of the nozzle 17, with the continuous movement of the limiting rod 28, the limiting block 22 is away from the nozzle 17, the insertion block 20 moves and is separated from the fixed hole, so as to release the fixation of the insertion ring 23, under the action of gravity, the nozzle 17 falls on the inclined surface of the guide plate 30 and makes the guide plate 30 restore to the vertical state, then the cleaning assembly works, the spiral blade 34 rotates and rises, so as to clean the connection port position of the plasma ceramic spray gun 16, avoid the accumulation of cooled and solidified coating in the connection port to affect the installation of the subsequent nozzle 17 and the spraying of the plasma ceramic spray gun 16, after the work of the spiral blade 34 is completed, the second motor 43 works again, the rotating frame 44 drives the first moving frame 27 and the second moving frame 29 to reset, in the process that the rotating frame 44 resets, the toggle lever 45 pushes the reciprocating plate 41 to move, under the cooperation of the pusher 42, the feeding of the nozzle 17 is completed once, then the electric push rod 37 works, the push rod 37 and the nozzle 17 above the push rod 37 move towards the plasma ceramic spray gun 16, the quick replacement and installation of the nozzle 17 are realized, the connection port of the spray gun is cleaned at the same time of replacement, so as to ensure that the spraying flame and the powder focus are always at the designed level, fundamentally guarantee the quality of the metal ceramic coating, without stopping the work for replacement, and the continuous work of the whole production line is ensured.

[0033] In summary, the above effectively solves the problem that the waiting time between different processes is long when the existing device works, which makes the production efficiency low, and in order to ensure the spraying quality, the surface of the air ring is usually sandblasted, the workpiece carrying and repositioning between different processes consume a lot of time, which can cause the air ring to be oxidized or contaminated again after sandblasting, and the existing metal ceramic coating can only be simply covered on the surface of the air ring, which leads to poor adhesion effect of the metal ceramic coating and affects the service life of the air ring, in addition, the spraying nozzle in the spraying device is a key consumable, once damaged, the whole work line needs to be stopped for replacement, which causes the production to stop.

[0034] Working principle: Through the structural design of the multi-station device, when spraying the air ring, the air ring can be fixed on the clamping seat 10 through the discharge port first, the center column 2 rotates, the swing seat 7 drives the annular connecting rail 8 to rotate, and the simultaneous processing of multiple air rings can be achieved. At the same time, the first small motor 12 operates, the rotating roller 11 rotates, and the rotating ring 9 drives the clamping seat 10 and the air ring to rotate with the center point of the annular connecting rail 8 as the center. When spraying the other side of the air ring, start the No. 1 motor 14, and the No. 2 gear rotates. Under the cooperation of the No. 1 gear 13, the annular connecting rail 8 drives the air ring on it to flip, realizing the spraying of different surfaces of the air ring, ensuring that the metal ceramic coating can completely cover the surface of the air ring. After the air ring is finished spraying, it returns to the discharge port position. In the interval of the annular connecting rail 8 following the center column 2 rotating, the sprayed air ring can be taken out, and the unsprayed air ring can be fixed on the clamping seat 10, waiting for the next process. The parallel operation of spraying and feeding preparation is realized, and the production efficiency is improved. Through the cooperation of the alternating device, after the air ring follows the center column 2 to rotate into the operating range of the fixing frame 5, in the interval of the center column 2 stopping rotating, the sand blasting gun 18 first sprays the surface of the air ring, so that the subsequent metal ceramic coating can be more firmly attached to the air ring. In this process, the first small motor 12 drives the rotating roller 11 to rotate, so that the clamping seat 10 and the air ring are always in a rotating state, ensuring the uniformity of sand blasting and metal ceramic coating operation. After the sand blasting treatment is completed, the driving power drives the reciprocating frame 15 to rotate, so that the plasma ceramic spray gun 16 and the nozzle 17 are rotated to a horizontal state. The plasma ceramic spray gun 16 operates, and a certain degree of mutual melting occurs between the ceramic spray powder material and the metal substrate, thereby enhancing the bonding strength between the coating and the substrate. The coating will undergo a transition process from liquid to solid, and finally tightly combine with the metal substrate to form a bonded metal layer with the required performance, thereby strengthening the adhesion and wear resistance of the coating. The treated air ring is immediately sprayed, reducing the number of workpiece handling and positioning, avoiding the problem of secondary pollution caused by waiting, and improving the overall process efficiency and quality reliability. When the nozzle 17 is damaged and the spraying quality is reduced, the nozzle 17 that is not in operation can be replaced when the sand blasting gun 18 is in operation. The second motor 43 is started, the rotating frame 44 rotates, the first moving frame 27 and the second moving frame 29 move towards each other, the first moving frame 27 moves towards the nozzle 17, the limiting rod 28 first contacts the inclined surface of the limiting block 22, at the same time, the second moving frame 29 drives the guide plate 30 to move, the guide plate 30 is in an inclined state when it moves to the bottom of the nozzle 17, with the continuous movement of the limiting rod 28, the limiting block 22 moves away from the nozzle 17, the insertion block 20 moves and is separated from the fixed hole, the fixing of the insertion ring 23 is released, under the action of gravity, the nozzle 17 falls on the inclined surface of the guide plate 30 and restores to the vertical state, then the cleaning assembly operates, the spiral blade 34 rotates and rises, the connection port position of the plasma ceramic spray gun 16 is cleaned, the accumulation of the cooled and solidified coating in the connection port is avoided, the installation of the subsequent nozzle 17 and the spraying of the plasma ceramic spray gun 16 are affected, the spiral blade 34 is reset after the operation is completed, the second motor 43 operates again, the rotating frame 44 drives the first moving frame 27 and the second moving frame 29 to reset, in the process of resetting the rotating frame 44, the toggle lever 45 pushes the reciprocating plate 41 to move, under the cooperation of the pusher 42, the feeding of the nozzle 17 is completed once, then the electric push rod 37 operates, the push rod 37 and the nozzle 17 on the push rod 37 move towards the plasma ceramic spray gun 16, the quick replacement and installation of the nozzle 17 are realized, the connection port of the spray gun is cleaned at the same time of replacement, the spraying flame and the powder focus are ensured to be always at the design level, the quality of the metal ceramic coating is fundamentally ensured, the replacement is not required to stop the operation, the continuous operation of the entire production line is ensured.

[0035] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A device for spraying a high-wear-resistant metal-ceramic coating onto a ring, characterized in that: Includes a base (1), a central column (2) is installed on the top of the base (1), three partition plates (3) are fixed at equal angles on the central column (2), a shell (4) is installed on the top of the base (1), a through opening is provided on one side of the shell (4), and a fixing frame (5) is symmetrically installed on both sides of the through opening on the outside of the shell (4), and a support frame (6) is provided below the fixing frame (5). The central column (2) is equipped with a multi-station device, the fixed frame (5) is equipped with an alternation device, and the support frame (6) is equipped with an automatic replacement device.

2. The device for spraying a high wear-resistant metal-ceramic coating ring according to claim 1, characterized in that: The multi-station device includes a swing seat (7), an annular connecting rail (8), a rotating ring (9), a clamping seat (10), a rotating roller (11), and a first small motor (12). A swing seat (7) is rotatably installed between each pair of partition plates (3). The working end of the swing seat (7) is rotatably installed with an annular connecting rail (8) via a rotating shaft. The annular connecting rail (8) has a rotating cavity inside, and a rotating ring (9) is provided inside the rotating cavity. A clamping seat (10) is fixedly connected to the rotating ring (9). Multiple rotating rollers (11) are installed inside the rotating cavity. A first small motor (12) is installed on the structural surface of the annular connecting rail (8). The output shaft end of the first small motor (12) is connected to one of the rotating rollers (11).

3. The device for spraying a high wear-resistant metal-ceramic coating ring according to claim 2, characterized in that: The multi-station device also includes a first gear (13) and a first motor (14). The first gear (13) is sleeved on the outside of the rotating shaft section between the swing seat (7) and the annular connecting rail (8). The first motor (14) is installed on the top of the swing seat (7). The output shaft end of the first motor (14) is connected to a second gear, and the second gear meshes with the first gear (13). The outer shell (4) has a discharge port near the through opening, and the angle between the discharge port and the through opening is 120 degrees.

4. The device for spraying a high wear-resistant metal-ceramic coating according to claim 1, characterized in that: The alternating device includes a reciprocating frame (15), a plasma ceramic spray gun (16), a nozzle (17), and a sandblasting gun (18). The reciprocating frame (15) is rotatably mounted on the fixed frame (5). The reciprocating frame (15) is shaped like a quarter circle. The plasma ceramic spray gun (16) is mounted on one plate of the reciprocating frame (15). The working end of the plasma ceramic spray gun (16) is equipped with a nozzle (17). The sandblasting gun (18) is mounted on the other plate of the reciprocating frame (15). A drive power supply is mounted on one side of the fixed frame (5).

5. The device for spraying a high wear-resistant metal-ceramic coating according to claim 4, characterized in that: The automatic replacement device includes a pull cavity (19), an insertion block (20), a connecting rod (21), a limiting block (22), an insertion ring (23), and a positioning short rod (24). An insertion hole is provided on the connecting seat of the plasma ceramic spray gun (16). An insertion ring (23) is fixedly connected to the end of the nozzle (17) away from the discharge port. Fixing holes are symmetrically provided on both sides of the insertion ring (23). The insertion ring (23) is inserted into the interior of the plasma ceramic spray gun (16). Pull cavities (19) are symmetrically provided on both structural surfaces of the connecting seat of the plasma ceramic spray gun (16). (19) is connected to the insertion hole. The inside of the pulling cavity (19) is provided with an insertion block (20). The end of the insertion block (20) away from the insertion hole is equipped with a connecting rod (21). The end of the connecting rod (21) is fixedly connected with a limiting block (22). The cross section of the connecting rod (21) is sleeved with a first limiting spring. When the first limiting spring is in its natural state, the working end of the insertion block (20) enters the insertion hole and the fixing hole of the insertion ring (23). The connection position of the nozzle (17) and the insertion ring (23) is sleeved with a limiting ring plate. A positioning short rod (24) is symmetrically fixed on the limiting ring.

6. The device for spraying a high wear-resistant metal-ceramic coating according to claim 1, characterized in that: The automatic replacement device includes a fixed frame (25), a sliding block (26), a first movable frame (27), a limiting rod (28), a second movable frame (29), a guide plate (30), a support block (35), and a support rod (36). The fixed frame (25) is installed on the top of the support frame (6). Sliding grooves are symmetrically opened on the top and bottom surfaces of the fixed frame (25). Sliding blocks (26) are provided inside the sliding grooves. The first movable frame (27) is fixedly connected to the sliding block (26) at the top of the fixed frame (25). Limiting rods (28) are symmetrically fixed to the inner walls of the two sides of the first movable frame (27). The bottom of the fixed frame (25) A second movable frame (29) is fixedly connected to the sliding block (26) of the part. A guide plate (30) is rotatably installed inside the second movable frame (29). A material support plate is fixedly connected to the bottom of the guide plate (30) on the side away from the heavy block. Support blocks (35) are symmetrically installed on the opposite surfaces of the two sides of the second movable frame (29). The horizontal height of the support blocks (35) is higher than the height of the rotation point of the guide plate (30). A connecting hole is symmetrically opened on the plate of the second movable frame (29) away from the first movable frame (27), and a support rod (36) is provided inside the connecting hole. The end of the support rod (36) away from the placement plate (39) is fixedly connected to the fixed frame (25).

7. The device for spraying a high wear-resistant metal-ceramic coating according to claim 6, characterized in that: A cleaning assembly is installed on the guide plate (30), which includes a second small motor (31). The second small motor (31) is fixed to the structural surface of the guide plate (30) with a spiral blade (34) by a mounting frame. A reciprocating screw (32) is installed on the top of the output shaft of the second small motor (31). A lifting cavity is opened on the top of the reciprocating screw (32). A central shaft (33) is set inside the lifting cavity. A spiral blade (34) is installed on the top of the central shaft (33). A lifting ring is sleeved on the outside of the cross section of the reciprocating screw (32). A telescopic rod is symmetrically installed on the bottom of the lifting ring. A push rod is symmetrically fixed on the top of the lifting ring. A push ring is fixed on the top of the push rod. A rotating groove is opened inside the push ring. A fixed disc is fixedly sleeved on the outside of the cross section of the central shaft (33). The fixed disc rotates inside the rotating groove.

8. The device for spraying a high wear-resistant metal-ceramic coating according to claim 7, characterized in that: A second motor (43) is installed on one side plate of the fixed frame (25). A rotating frame (44) is installed at the end of the output shaft of the second motor (43). Structural grooves are provided at both ends of the frame of the rotating frame (44). Connecting buckles are fixed on the same side of the first moving frame (27) and the second moving frame (29). The two ends of the rotating frame (44) are respectively sleeved on the connecting buckles of the first moving frame (27) and the second moving frame (29) through the structural grooves. The connecting buckles can move along the inside of the structural grooves.

9. The device for spraying a high wear-resistant metal-ceramic coating according to claim 8, characterized in that: A feeding assembly is installed between the frames of the support frame (6). The feeding assembly includes an electric push rod (37), a push seat (38), a placement plate (39), a fixed shaft (40), a reciprocating plate (41), and a push frame (42). The push seat (38) is installed on the top of the electric push rod (37). A guide cylinder is fixedly connected to the top of the push seat (38) at a symmetrical position. The placement plate (39) is installed on the plate of the support frame (6) at the top of the electric push rod (37). A push groove is opened on the plate of the placement plate (39). Guide grooves are symmetrically opened on both sides of the push groove on the plate of the placement plate (39).

10. The device for spraying a high wear-resistant metal-ceramic coating according to claim 1, characterized in that: Fixed shafts (40) are symmetrically fixed on both sides of the placement plate (39) on the support frame (6). A reciprocating plate (41) is slidably sleeved on the outside of the cross section of the outer shell (4). The top end face of the reciprocating plate (41) is lower than the bottom end face of the placement plate (39). A pusher (42) is fixedly connected to the end of the reciprocating plate (41) near the first moving frame (27). The thickness of the pusher (42) is the same as the thickness of the reciprocating plate (41). Pawls are fixedly fixed at equal intervals on the top plate of the reciprocating plate (41) near the rotating frame (44). A lever (45) is fixed on the rod of the frame (44). A pawl is hinged to the bottom end of the lever (45). The pawl on the lever (45) follows the swing trajectory of the lever (45) and intersects the movement trajectory of the pawl on the top of the reciprocating plate (41). A second limiting spring is sleeved on the outside of the cross section of one end of the fixed shaft (40). One end of the second limiting spring is connected to the reciprocating plate (41), and the other end is connected to the frame of the support frame (6). A connecting plate is fixed on the side of the support frame (6) near the lever (45). An anti-reverse lever is installed on the connecting plate.

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