Flame wire pneumatic spray gun

Abstract

The invention belongs to the field of pneumatic spray guns, and particularly relates to a flame wire pneumatic spray gun which comprises a box body and a pneumatic spray gun body located above the box body, the pneumatic spray gun body comprises a wire feeding transmission gear box, a driving motor is installed on the rear side of the wire feeding transmission gear box, and a wire feeding clamping mechanism is arranged on the wire feeding transmission gear box. A nozzle and a safety cap are arranged on the front side of the wire feeding clamping mechanism, a wire feeding wheel used for conveying wires is arranged in the wire feeding transmission gear box, a gear access door is arranged on one side of the wire feeding transmission gear box, a mounting plate is fixedly mounted at the bottom of the wire feeding transmission gear box, a driving plate is slidably mounted on the top of the box body, and the mounting plate is mounted on the top of the driving plate. The device is reasonable in design, continuous and uniform feeding is achieved by arranging the wire feeding wheel, the spraying quality is stable, the spraying efficiency is high, energy consumption is low, meanwhile, the moving stroke of the pneumatic spraying gun body can be detected and controlled, and the purpose of coating the surfaces of base materials of different sizes can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of pneumatic spray guns, in particular to a flame wire pneumatic spray gun. Background Art

[0002] Thermal spraying refers to heating and melting the coating material, atomizing it into extremely fine particles with a high-speed airflow, and spraying it onto the surface of the workpiece at a very high speed to form a coating. According to the needs, different coating materials can be selected to obtain one or more properties such as wear resistance, corrosion resistance, oxidation resistance, and heat resistance. After searching, the patent document with the authorization announcement number CN214052158U discloses an adjustable flame type wire spray gun. An adjustable flame type wire spray gun includes a front sleeve and a rear sleeve, the front sleeve is provided with a conical hole, and the conical hole is provided with a compressed air hole. The beneficial effect of the utility model is that oxygen and acetylene are mixed in the mixing channel after passing through the oxygen regulating channel and the acetylene regulating channel, and are discharged through the exhaust channel. The mixed gas of oxygen and acetylene is ignited at the opening of the conical hole of the front sleeve, the wire enters the conical hole through the wire through hole, the wire is heated to a molten state by the oxygen acetylene flame, and the compressed air enters the conical hole through the compressed air hole, and the molten wire is sprayed onto the spraying surface outside the conical hole, thereby spraying.

[0003] In actual use, it is found that the wire cannot be transported stably and is prone to uneven melting, resulting in different thicknesses of the substrate coating. In addition, when substrates of different sizes require different travel distances for the pneumatic spray gun, it is impossible to conveniently detect and control the travel distance of the pneumatic spray gun according to the different sizes of substrates. Therefore, we proposed a flame wire pneumatic spray gun to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a flame wire pneumatic spray gun.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A flame wire pneumatic spray gun comprises a box body and a pneumatic spray gun body located above the box body, the pneumatic spray gun body comprises a wire feeding transmission gear box, a driving motor is installed at the rear side of the wire feeding transmission gear box, a wire feeding clamping mechanism is arranged on the wire feeding transmission gear box, a nozzle and a safety cap are arranged at the front side of the wire feeding clamping mechanism, a wire feeding wheel for wire feeding is arranged in the wire feeding transmission gear box, and a gear inspection door is arranged at one side of the wire feeding gear box; A mounting plate is fixedly installed on the bottom of the wire transmission gear box, a driving plate is slidably installed on the top of the box body, the mounting plate is installed on the top of the driving plate, a spray gun mounting bracket is provided at the bottom of the mounting plate, a bracket positioning groove is opened on the top of the driving plate, and the spray gun mounting bracket is adapted to the corresponding bracket positioning groove, a moving hole is opened on the top inner wall of the box body, two moving seats are slidably installed on the bottom inner wall of the box body, and the top end of the moving seat is fixedly installed on the driving plate.

[0006] Preferably, the same threaded rod is fixedly installed on the inner walls of both sides of the box body, a rotating hole is opened on the movable seat, a rotating seat is rotatably installed in the rotating hole, a threaded hole is opened on one side of the rotating seat, and the rotating seat is threadedly sleeved on the threaded rod through the threaded hole.

[0007] Preferably, an annular groove is provided on the inner wall of the first rotating hole, an annular seat is fixedly mounted on the outer side of the rotating seat, and the annular seat is rotatably connected to the annular groove.

[0008] Preferably, a second rotating hole is opened on one side of the movable seat, a rotating seat is rotatably installed in the second rotating hole, a transmission mechanism is provided between the rotating seats, and a driving mechanism connected to the rotating seat is provided in the box body.

[0009] Preferably, the driving mechanism includes a driving shaft, a rotating motor, a rectangular hole and a rectangular rod. A rectangular hole is opened on one side of the rotating seat, and driving shafts are rotatably installed on the inner walls of both sides of the box body. The ends of the two driving shafts close to each other are fixedly installed with the same rectangular rod, and the rectangular rod is slidably connected to the corresponding rectangular hole. A rotating motor is fixedly installed on one side of the box body, and the output shaft of the rotating motor is fixedly installed on the corresponding driving shaft.

[0010] Preferably, the transmission mechanism comprises a driving gear and a driven gear, the driving gear is fixedly mounted on a rotating seat, the driven gear is fixedly mounted on a rotating seat, and the driving gear is meshed with the corresponding driven gear.

[0011] Preferably, a distance meter for detecting the travel of the moving seat is installed on one side of the box body, a controller is installed on the bottom inner wall of the box body, and the distance meter and the rotating motor are electrically connected to the controller.

[0012] Preferably, a groove is provided at the bottom of the mounting plate, a fixing groove is provided on an inner wall of one side of the groove, and a fixing mechanism matched with the fixing groove is provided on the driving plate.

[0013] Preferably, the fixing mechanism comprises a sliding groove, a clamping plate and a fixing seat, the sliding groove is opened on the top of the driving plate, the clamping plate is slidably installed in the sliding groove, and a fixing seat adapted to the fixing groove is fixedly installed on one side of the clamping plate.

[0014] Preferably, a second threaded hole is provided on an inner wall of one side of the sliding groove, a driving screw is installed in the inner thread of the second threaded hole, one end of the driving screw is rotatably installed on the clamping plate, and a hand wheel is fixedly installed on the other end of the driving screw.

[0015] Beneficial effects of the present invention: 1. Install the mounting plate onto the driving plate. Through the action of the hand wheel, the driving screw and the threaded hole, the driving screw can drive the clamping plate and the fixing seat to move, and the fixing seat can be inserted into the corresponding fixing groove, thereby achieving the purpose of installing the pneumatic spray gun; 2. Use oxygen-acetylene combustion flame as heat source. Acetylene and oxygen are mixed to produce combustion flame at the nozzle outlet. The wire feeding wheel drives the wire to continuously pass through the center of the nozzle into the flame, where it is heated and melted. Compressed air forms a conical high-speed airflow through the air cap, atomizing the melted wire into fine particles. Driven by the flame and airflow, the molten particles are sprayed onto the pre-treated substrate surface to form a coating. When the molten particles hit the substrate, they undergo plastic deformation, forming a flaky superimposed deposition coating; 3. The rotating seat is rotated by the cooperation of the rotating motor, the rectangular rod, the rotating seat, the driving gear and the driven gear. The rotating seat can be moved while rotating by the cooperation of the threaded hole 1 and the threaded rod. The rotating seat can drive the moving seat and the driving plate to move. The driving plate can drive the pneumatic spray gun body to move. The rangefinder can detect and the controller can control it, so as to achieve the purpose of coating the surface of substrates of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the pneumatic spray gun main body of a flame wire pneumatic spray gun proposed by the present invention; Figure 2 This is a schematic diagram of the main structure of a flame wire pneumatic spray gun proposed by the present invention; Figure 3 This is a three-dimensional structural schematic diagram of a box body and a driving plate of a flame wire pneumatic spray gun proposed by the present invention; Figure 4 for Figure 3 A schematic diagram of a cross-sectional three-dimensional structure; Figure 5 This is a schematic structural diagram of part A of a flame wire pneumatic spray gun proposed by the present invention; Figure 6 This is a schematic structural diagram of part B of a flame wire pneumatic spray gun proposed by the present invention.

[0017] In the figure: 1. driving motor; 2. wire feeding transmission gear box; 3. wire feeding clamping mechanism; 4. nozzle and safety helmet; 5. spray gun mounting bracket; 6. gear inspection door; 7. wire feeding wheel; 8. box body; 9. driving plate; 10. mounting plate; 11. groove; 12. fixing groove; 13. bracket positioning groove; 14. moving hole; 15. moving seat; 16. rotating hole 1; 17. rotating seat; 18. threaded hole 1; 19. threaded rod; 20. driven gear; 21. rotating hole 2; 22. rotating seat; 23. rectangular hole; 24. driving shaft; 25. rectangular rod; 26. driving gear; 27. rotating motor; 28. distance meter; 29. ​​controller; 30. sliding groove; 31. clamping plate; 32. fixing seat; 33. threaded hole 2; 34. driving screw; 35. hand wheel; 36. annular groove; 37. annular seat. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. "Disposed" indicates a way of existence, which can be a connection method such as connection, installation, fixed connection, active connection, etc. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be an intermediate component at the same time.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] Reference Figure 1-6A flame wire pneumatic spray gun comprises a box body 8 and a pneumatic spray gun main body located above the box body 8, the pneumatic spray gun main body comprises a wire feeding transmission gear box 2, a driving motor 1 is installed on the rear side of the wire feeding transmission gear box 2, a wire feeding clamping mechanism 3 is provided on the wire feeding transmission gear box 2, a nozzle and a safety helmet 4 are provided on the front side of the wire feeding clamping mechanism 3, a wire feeding wheel 7 for wire feeding is provided in the wire feeding transmission gear box 2, and a gear inspection door 6 is provided on one side of the wire transmission gear box, a mounting plate 10 is fixedly installed at the bottom of the wire transmission gear box, a driving plate 9 is slidably installed on the top of the box body 8, the mounting plate 10 is installed on the top of the driving plate 9, a spray gun mounting bracket 5 is provided at the bottom of the mounting plate 10, a bracket positioning groove 13 is provided on the top of the driving plate 9, and a spray gun mounting bracket 5 is provided at the bottom of the mounting plate 10, and a bracket positioning groove 13 is provided on the top of the driving plate 9. The gun mounting bracket 5 is matched with the corresponding bracket positioning groove 13, a moving hole 14 is opened on the top inner wall of the box body 8, two moving seats 15 are slidably installed on the bottom inner wall of the box body 8, and the top of the moving seat 15 is fixedly installed on the driving plate 9. An oxygen-acetylene combustion flame is used as a heat source. After acetylene and oxygen are mixed, a combustion flame is generated at the nozzle outlet. The wire feeding wheel 7 drives the wire to continuously pass through the center of the nozzle into the flame, and it is heated and melted in the flame. The compressed air forms a conical high-speed airflow through the air cap, and the molten wire is atomized into fine particles. The molten particles are driven by the flame and the airflow and sprayed onto the pretreated substrate surface to form a coating. When the molten particles hit the substrate, plastic deformation occurs to form a sheet-like superimposed deposition coating.

[0022] In this embodiment, the same threaded rod 19 is fixedly installed on the inner walls of both sides of the box body 8, a rotating hole 16 is opened on the movable seat 15, and a rotating seat 17 is rotatably installed in the rotating hole 16. A threaded hole 18 is opened on one side of the rotating seat 17, and the rotating seat 17 is threadedly sleeved on the threaded rod 19 through the threaded hole 18. By providing the threaded rod 19 and the threaded hole 18, when the rotating seat 17 rotates, the rotating seat 17 can be rotated and moved at the same time. An annular groove 36 is opened on the inner wall of the rotating hole 16, and an annular seat 37 is fixedly installed on the outer side of the rotating seat 17, and the annular seat 37 is rotatably connected to the annular groove 36. By providing the annular seat 37 and the annular groove 36, the rotating seat 17 can be stably rotatably installed on the movable seat 15.

[0023] In this embodiment, a rotating hole 21 is provided on one side of the movable seat 15, and a rotating seat 22 is rotatably installed in the rotating hole 21. A transmission mechanism is provided between the rotating seat 22 and the rotating seat 17. A driving mechanism connected to the rotating seat 22 is provided in the box body 8, and the driving mechanism includes a driving shaft 24, a rotating motor 27, a rectangular hole 23 and a rectangular rod 25. A rectangular hole 23 is provided on one side of the rotating seat 22, and the driving shafts 24 are rotatably installed on the inner walls of both sides of the box body 8. The same rectangular rod 25 is fixedly installed at one end of the two driving shafts 24 close to each other, and the rectangular rod 25 is slidably connected to the corresponding rectangular hole 23. A rotating motor 27 is fixedly installed on one side of the box body 8, and the output shaft of the rotating motor 27 is fixedly installed on the corresponding driving shaft 24. By providing the rectangular rod 25, the rotation of the rectangular rod 25 can drive the rotating seat 22 to rotate through the rectangular hole 23, and when the movable seat 15 moves, the rotating seat 22 slides on the rectangular rod 25 through the rectangular hole 23, and the rotation of the rotating seat 22 is not affected.

[0024] In this embodiment, the transmission mechanism includes a driving gear 26 and a driven gear 20. The driving gear 26 is fixedly mounted on the rotating seat 22, and the driven gear 20 is fixedly mounted on the rotating seat 17. The driving gear 26 is meshed with the corresponding driven gear 20. Through the cooperation of the driving gear 26 and the driven gear 20, the rotation of the rotating seat 22 can drive the rotating seat 17 to rotate.

[0025] In this embodiment, a distance meter 28 for detecting the travel of the moving seat 15 is installed on one side of the box body 8, and a controller 29 is installed on the bottom inner wall of the box body 8, and the distance meter 28 and the rotating motor 27 are electrically connected to the controller 29, and can be detected by the distance meter 28, and the distance meter 28 can generate a signal to the controller 29, and the start and stop, forward and reverse start of the rotating motor 27 can be controlled by the controller 29, so as to achieve the purpose of coating the surface of substrates of different sizes.

[0026] In this embodiment, a groove 11 is provided at the bottom of the mounting plate 10, a fixing groove 12 is provided on the inner wall of one side of the groove 11, a fixing mechanism matched with the fixing groove 12 is provided on the driving plate 9, and the fixing mechanism includes a sliding groove 30, a clamping plate 31 and a fixing seat 32, the sliding groove 30 is provided on the top of the driving plate 9, a clamping plate 31 is slidably installed in the sliding groove 30, a fixing seat 32 matched with the fixing groove 12 is fixedly installed on one side of the clamping plate 31, a threaded hole 23 is provided on the inner wall of one side of the sliding groove 30, a driving screw 34 is threadedly installed in the threaded hole 23, one end of the driving screw 34 is rotatably installed on the clamping plate 31, and the other end of the driving screw 34 is fixedly installed with a handwheel 35. By rotating the hand wheel 35 and the driving screw 34, under the action of the second threaded hole 33, the driving screw 34 is rotated and moved, and the driving screw 34 can drive the clamping plate 31 and the fixing seat 32 to move, and the fixing seat 32 can be inserted into the corresponding fixing groove 12, thereby achieving the purpose of installing the pneumatic spray gun.

[0027] In the present invention, the mounting plate 10 is mounted on the driving plate 9, and the hand wheel 35 and the driving screw 34 are rotated, and the driving screw 34 is moved while rotating under the action of the second threaded hole 33, and the driving screw 34 can drive the clamping plate 31 and the fixing seat 32 to move, and the fixing seat 32 can be stuck in the corresponding fixing groove 12, so as to achieve the purpose of installing the pneumatic spray gun, and use the oxygen-acetylene combustion flame as the heat source, and the acetylene and oxygen are mixed to generate a combustion flame at the nozzle outlet, and the wire feeding wheel 7 drives the wire to be continuously fed into the flame through the center of the nozzle, and is heated and melted in the flame, and the compressed air forms a conical high-speed airflow through the air cap, and the melted wire is atomized into fine particles. The molten particles are driven by the flame and the airflow, and are sprayed onto the surface of the pretreated substrate to form a coating, and the molten particles are plastically deformed when they hit the substrate, forming a sheet-like superimposed deposition coating; By starting the rotating motor 27, the rotating motor 27 can drive the rectangular rod 25 to rotate through the driving shaft 24, and the rectangular rod 25 can drive the rotating seat 22 and the driving gear 26 to rotate. The driving gear 26 drives the rotating seat 17 to rotate through the driven gear 20. With the cooperation of the threaded hole 18 and the threaded rod 19, the rotating seat 17 can rotate and move at the same time. The rotating seat 17 can drive the moving seat 15 and the driving plate 9 to move. The driving plate 9 can drive the pneumatic spray gun body to move. It can be detected by the rangefinder 28 and controlled by the controller 29, so as to achieve the purpose of coating the surface of substrates of different sizes.

[0028] The above is a detailed introduction to a flame wire pneumatic spray gun provided by the present invention. The principles and implementation methods of the present invention are described in detail using specific embodiments. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, the present invention can also be improved and modified without departing from the principle of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A flame wire pneumatic spray gun, characterized in that: The pneumatic spray gun comprises a box body (8) and a pneumatic spray gun body located above the box body (8), wherein the pneumatic spray gun body comprises a wire feeding transmission gear box (2), a driving motor (1) is installed on the rear side of the wire feeding transmission gear box (2), a wire feeding clamping mechanism (3) is provided on the wire feeding transmission gear box (2), a nozzle and a safety cap (4) are provided on the front side of the wire feeding clamping mechanism (3), a wire feeding wheel (7) for wire feeding is provided in the wire feeding transmission gear box (2), and a gear inspection door (6) is provided on one side of the wire feeding transmission gear box; A mounting plate (10) is fixedly mounted on the bottom of the wire transmission gear box, a driving plate (9) is slidably mounted on the top of the box body (8), the mounting plate (10) is mounted on the top of the driving plate (9), a spray gun mounting bracket (5) is provided at the bottom of the mounting plate (10), a bracket positioning groove (13) is provided on the top of the driving plate (9), and the spray gun mounting bracket (5) is matched with the corresponding bracket positioning groove (13), a moving hole (14) is provided on the top inner wall of the box body (8), two moving seats (15) are slidably mounted on the bottom inner wall of the box body (8), and the top end of the moving seat (15) is fixedly mounted on the driving plate (9).

2. A flame wire pneumatic spray gun according to claim 1, characterized in that: The same threaded rod (19) is fixedly mounted on the inner walls of both sides of the box body (8); a rotating hole (16) is formed on the movable seat (15); a rotating seat (17) is rotatably mounted in the rotating hole (16); a threaded hole (18) is formed on one side of the rotating seat (17); and the rotating seat (17) is threadedly sleeved on the threaded rod (19) through the threaded hole (18).

3. A flame wire pneumatic spray gun according to claim 2, characterized in that: An annular groove (36) is provided on the inner wall of the first rotating hole (16), an annular seat (37) is fixedly mounted on the outer side of the rotating seat (17), and the annular seat (37) is rotatably connected to the annular groove (36).

4. A flame wire pneumatic spray gun according to claim 1, characterized in that: A second rotating hole (21) is provided on one side of the movable seat (15), a rotating seat (22) is rotatably mounted in the second rotating hole (21), a transmission mechanism is provided between the rotating seat (22) and the rotating seat (17), and a driving mechanism connected to the rotating seat (22) is provided in the box body (8).

5. A flame wire pneumatic spray gun according to claim 4, characterized in that: The driving mechanism comprises a driving shaft (24), a rotating motor (27), a rectangular hole (23) and a rectangular rod (25); a rectangular hole (23) is provided on one side of the rotating seat (22); driving shafts (24) are rotatably mounted on the inner walls of both sides of the box (8); a same rectangular rod (25) is fixedly mounted on one end of the two driving shafts (24) close to each other, and the rectangular rod (25) is slidably connected to the corresponding rectangular hole (23); a rotating motor (27) is fixedly mounted on one side of the box (8); and an output shaft of the rotating motor (27) is fixedly mounted on the corresponding driving shaft (24).

6. A flame wire pneumatic spray gun according to claim 4, characterized in that: The transmission mechanism comprises a driving gear (26) and a driven gear (20), wherein the driving gear (26) is fixedly mounted on a rotating seat (22), and the driven gear (20) is fixedly mounted on a rotating seat (17), and the driving gear (26) is meshed with a corresponding driven gear (20).

7. A flame wire pneumatic spray gun according to claim 1, characterized in that: A distance meter (28) for detecting the travel of the moving seat (15) is installed on one side of the box (8), a controller (29) is installed on the bottom inner wall of the box (8), and the distance meter (28) and the rotating motor (27) are electrically connected to the controller (29).

8. A flame wire pneumatic spray gun according to claim 1, characterized in that: The bottom of the mounting plate (10) is provided with a groove (11), an inner wall of one side of the groove (11) is provided with a fixing groove (12), and the driving plate (9) is provided with a fixing mechanism matched with the fixing groove (12).

9. A flame wire pneumatic spray gun according to claim 8, characterized in that: The fixing mechanism comprises a sliding groove (30), a clamping plate (31) and a fixing seat (32); the sliding groove (30) is formed on the top of the driving plate (9); the clamping plate (31) is slidably mounted in the sliding groove (30); and a fixing seat (32) adapted to the fixing groove (12) is fixedly mounted on one side of the clamping plate (31).

10. A flame wire pneumatic spray gun according to claim 9, characterized in that: A second threaded hole (33) is formed on an inner wall of one side of the sliding groove (30), a driving screw (34) is installed in the inner thread of the second threaded hole (33), one end of the driving screw (34) is rotatably mounted on the clamping plate (31), and a hand wheel (35) is fixedly mounted on the other end of the driving screw (34).

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