Direct Injection Rotary Compatible Plasma Spray Gun

Abstract

The present invention discloses a direct-injection, rotary-compatible plasma spray gun, comprising a rear shell, the right end of which is fixedly connected to a motor shell, a motor drive fixedly connected inside the motor shell, an output end of the motor drive fixedly connected to a gun body, a circular groove formed at the right end of the gun body, a main body device fixedly connected to the right end of the circular groove, a fixing device threadedly connected to the right portion of the outer surface of the main body device, a connecting device threadedly connected to the middle portion of the outer surface of the main body device, a protective device fixedly connected to the outer surface of the motor shell, two fixing caps fixedly connected to the left portion of the outer surface of the protective device, and the two fixing caps are symmetrically distributed in an upper and lower direction. The direct-injection, rotary-compatible plasma spray gun of the present invention has a rational and stable structural design, is convenient for freely switching nozzles, is easy for users to operate and use, has a good heat dissipation effect, and improves the performance of the overall device.

Description

Technical Field

[0001] The invention relates to the technical field of spray guns, in particular to a direct-injection and rotation-compatible plasma spray gun. Background Art

[0002] Plasma cleaning technology has been increasingly used in industrial production, automobile manufacturing, medical care, aerospace and other fields, especially in the field of electronics industry. Its application is becoming more and more extensive. The difference between plasma direct spray guns and rotary spray guns is that direct spray guns blow out plasma directly, while rotary spray guns are generally used for large-scale plasma treatment. The inventors found that there are at least the following problems in the existing technology that have not been solved: 1. In the current supporting automation equipment, if the products to be processed are both narrow and long and large, it is necessary to switch between plasma direct spray guns and rotary spray guns. When switching, the spray gun and power supply are replaced as a whole. Since the spray gun is connected to the plasma power supply through a high-voltage wire, a ground wire and an air pipe, the switching is time-consuming and labor-intensive, and frequent twisting of the high-voltage wire can easily cause the high-voltage wire connector to age, causing safety hazards; 2. During use, the existing direct-spray rotary compatible plasma spray gun cannot increase the spray area and cannot meet the use requirements of processing annular products; 3. During use, the drive component of the existing direct-spray rotary compatible plasma spray gun has poor heat dissipation, which affects the overall performance; therefore, we propose a direct-spray rotary compatible plasma spray gun. Summary of the Invention

[0003] The main purpose of the present invention is to provide a direct-injection and rotation-compatible plasma spray gun, which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A direct-injection rotary compatible plasma spray gun includes a rear shell plate, the right end of the rear shell plate is fixedly connected to a motor shell, the motor shell is fixedly connected to a motor drive, the output end of the motor drive is fixedly connected to a gun body, the right end of the gun body is provided with a circular groove, the right end of the circular groove is fixedly connected to a main body device, the right part of the outer surface of the main body device is threadedly connected to a fixing device, the middle part of the outer surface of the main body device is threadedly connected to a connecting device, the outer surface of the motor shell is fixedly connected to a protective device, the left part of the outer surface of the protective device is fixedly connected to two fixing caps, and the two fixing caps are symmetrically distributed up and down, and a cyclone part is movably connected in the circular groove.

[0006] As a further improvement of the above-mentioned solution, the protective device includes a metal shell, two mounting grooves are opened on the left part of the outer surface of the metal shell, and the two mounting grooves are symmetrically distributed up and down, the upper groove wall and the lower groove wall of the mounting groove are opened with mounting holes, a connecting groove is opened in the metal shell, and a plurality of heat dissipation grooves are opened on the outer surface of the metal shell, and the metal shell is fixedly connected to the outer surface of the motor shell.

[0007] As a further improvement of the above scheme, the main device includes a hollow shaft, a plurality of threads are engraved on the right part of the outer surface of the hollow shaft, the right end of the hollow shaft is fixedly connected to a connecting shaft, the right end of the connecting shaft is fixedly connected to an electrode, and the hollow shaft is fixedly connected to the right end of the motor drive.

[0008] As a further improvement of the above scheme, the connecting device includes a sleeve, a rotating ring is fixedly connected to the rear part of the outer surface of the sleeve, a plurality of anti-slip grooves are opened on the outer surface of the rotating ring, the rear end of the hollow shaft is fixedly connected to a connecting cover, a nozzle is opened at the right end of the connecting cover, and the sleeve is threadedly connected to the outer surface of the hollow shaft.

[0009] As a further improvement of the above solution, the fixing device includes a circular shell with a screw groove opened in the circular shell. A plasma nozzle is fixedly connected to the middle of the right end of the circular shell, and the circular shell is threadedly connected to the outer surface of the hollow shaft.

[0010] As a further improvement of the above solution, the connection cover has a conical structure, and a plurality of the anti-slip grooves are arranged in a ring array with the sleeve as the center.

[0011] As a further improvement of the above solution, the position size of the screw groove is adapted to the position size of the plurality of threads, the plasma nozzle is located on the right side of the electrode, and the outer surface of the circular shell does not contact the inner wall of the sleeve.

[0012] As a further improvement of the above solution, a plurality of the heat dissipation slots are arranged in a ring array with the metal shell as the center, and the position and size of the two mounting holes are adapted to the position and size of the two fixing caps.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, the position size of the screw groove is adapted to the position size of several threads, so that the round shell is threadedly fixed on the right part of the outer surface of the hollow shaft and used in conjunction with the connecting device. The sleeve is threadedly fixed on the middle part of the outer surface of the hollow shaft. When the processing range is larger than 10mm, a connecting cover is used. When a smaller processing range of less than 10mm is required, the connecting cover is unscrewed and replaced with a plasma nozzle. The threaded connection method is convenient for disassembly and replacement, which solves the time-consuming and labor-intensive switching problem. Frequent twisting of the high-voltage wire can easily cause aging of the high-voltage wire connector, causing safety hazards.

[0015] 2. In the present invention, the gun body is driven by a motor to rotate at a high speed as a whole, and the flame is ejected from the nozzle, thereby achieving a large-area treatment effect. The right end of the sleeve is fixedly installed with a connecting cover, and the connecting cover adopts a conical structure design, thereby processing the inner circumferential wall of the annular product, meeting the use requirements of the annular product. A rotating ring is fixedly installed on the sleeve, and a number of anti-slip grooves are opened on the rotating ring to increase the friction with the operator's hand and avoid slipping of the hand when rotating the sleeve, in order to facilitate operation and use.

[0016] 3. In the present invention, the metal shell is fixedly installed on the outside of the motor shell by using a fixing cap. The metal shell is made of metal and effectively absorbs heat by utilizing the metal properties of the metal shell. The outer surface of the metal shell is provided with heat dissipation grooves for driving the heat dissipation of the device. The heat dissipation grooves are arranged in a circular array with the metal shell as the center, thereby increasing the heat dissipation area and improving the overall performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 Schematic diagram of the overall structure of the direct-injection rotary compatible plasma spray gun of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall small explosion structure of the direct-injection, rotary-compatible plasma spray gun of the present invention;

[0020] Figure 3 Schematic diagram of the structure of the anti-slip device of the direct-injection and rotary-compatible plasma spray gun of the present invention;

[0021] Figure 4 Schematic diagram of the structure of the main device of the direct-injection and rotary-compatible plasma spray gun of the present invention;

[0022] Figure 5 Schematic diagram of the structure of the connection device of the direct-injection rotary compatible plasma spray gun of the present invention;

[0023] Figure 6 This is a schematic structural diagram of the fixing device of the direct-injection and rotary-compatible plasma spray gun of the present invention.

[0024] In the figure: 1. gun body; 2. main body device; 3. connecting device; 4. motor drive; 5. protective device; 6. fixing cap; 7. fixing device; 8. motor housing; 9. rear shell plate; 10. circular groove; 11. cyclone part; 51. metal shell; 52. heat dissipation groove; 53. mounting hole; 54. mounting groove; 55. connecting groove; 21. hollow shaft; 22. thread; 23. electrode; 24. connecting shaft; 31. sleeve; 32. connecting cover; 33. anti-skid groove; 34. rotating ring; 35. nozzle; 71. circular shell; 72. plasma nozzle; 73. screw groove. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0028] The technical solution of the present invention is further described below with reference to the accompanying drawings.

[0029] like Figure 1-6As shown, the direct-injection rotary compatible plasma spray gun includes a rear shell plate 9, the right end of the rear shell plate 9 is fixedly connected to the motor shell 8, the motor drive 4 is fixedly connected inside the motor shell 8, the output end of the motor drive 4 is fixedly connected to the gun body 1, the right end of the gun body 1 is provided with a circular groove 10, the right end of the circular groove 10 is fixedly connected to the main body device 2, the right part of the outer surface of the main body device 2 is threadedly connected to the fixing device 7, the middle part of the outer surface of the main body device 2 is threadedly connected to the connecting device 3, the outer surface of the motor shell 8 is fixedly connected to a protective device 5, the outer surface of the protective device 5 is fixedly connected to two fixing caps 6 on the left, and the two fixing caps 6 are symmetrically distributed up and down, and a cyclone part 11 is movably connected in the circular groove 10.

[0030] The protective device 5 includes a metal shell 51. Two mounting grooves 54 are opened on the left side of the outer surface of the metal shell 51, and the two mounting grooves 54 are symmetrically distributed in the upper and lower groove walls. Mounting holes 53 are opened on the upper groove wall and the lower groove wall of the mounting groove 54. A connecting groove 55 is opened in the metal shell 51. A plurality of heat dissipation grooves 52 are opened on the outer surface of the metal shell 51. The metal shell 51 is fixedly connected to the outer surface of the motor shell 8; the plurality of heat dissipation grooves 52 are arranged in a circular array with the metal shell 51 as the center, and the position and size of the two mounting holes 53 are adapted to the position and size of the two fixing caps 6; the heat dissipation area is increased by forming a circular array with the metal shell 51 as the center. Since the heat dissipation grooves 52 are opened on the outer surface of the metal shell 51 for driving the heat dissipation of the equipment, the position and size of the two mounting holes 53 are adapted to the position and size of the two fixing caps 6, and the metal shell 51 is fixedly mounted on the outside of the motor shell 8 by using the fixing caps 6.

[0031] The main device 2 includes a hollow shaft 21, and a plurality of threads 22 are engraved on the right part of the outer surface of the hollow shaft 21. The right end of the hollow shaft 21 is fixedly connected to the connecting shaft 24, and the right end of the connecting shaft 24 is fixedly connected to the electrode 23. The hollow shaft 21 is fixedly connected to the right end of the motor drive 4.

[0032] The connecting device 3 includes a sleeve 31, and a rotating ring 34 is fixedly connected to the rear part of the outer surface of the sleeve 31. The outer surface of the rotating ring 34 is provided with a plurality of anti-slip grooves 33. The rear end of the hollow shaft 21 is fixedly connected to a connecting cover 32. The right end of the connecting cover 32 is provided with a nozzle 35. The sleeve 31 is threadedly connected to the outer surface of the hollow shaft 21; the connecting cover 32 has a conical structure, and the plurality of anti-slip grooves 33 are arranged in a ring array with the sleeve 31 as the center; the sleeve 31 is threadedly fixed to the middle part of the outer surface of the hollow shaft 21. Since the connecting cover 32 has a conical structure, the inner circumferential wall of the annular product is processed to meet the use requirements of the annular product.

[0033] The fixing device 7 includes a circular shell 71, a screw groove 73 is opened in the circular shell 71, and a plasma nozzle 72 is fixedly connected to the middle of the right end of the circular shell 71. The circular shell 71 is threadedly connected to the outer surface of the hollow shaft 21; the position and size of the screw groove 73 are adapted to the position and size of the plurality of threads 22, the plasma nozzle 72 is located on the right side of the electrode 23, and the outer surface of the circular shell 71 does not contact the inner wall of the sleeve 31; by adapting the position and size of the screw groove 73 to the position and size of the plurality of threads 22, the circular shell 71 is threadedly fixed to the right part of the outer surface of the hollow shaft 21. Since the outer surface of the circular shell 71 does not contact the inner wall of the sleeve 31, scratches that affect disassembly, installation and use are avoided.

[0034] In summary, during use of the present invention, since the position and size of the two mounting holes 53 are adapted to the position and size of the two fixing caps 6, the fixing cap 6 is used to fix the metal shell 51 on the outer side of the motor shell 8. The metal shell 51 is made of metal and the metal properties of the metal shell 51 are used to effectively absorb heat. The outer surface of the metal shell 51 is provided with a heat dissipation groove 52 for driving the heat dissipation of the equipment. The heat dissipation groove 52 is arranged in a ring array with the metal shell 51 as the center, which increases the heat dissipation area. The right end of the motor drive 4 is fixedly installed with the gun body 1, and the circular groove 10 is movably connected with the cyclone part 11. The cyclone part 11 is provided with a number of 45-degree inclined holes. Compressed air is blown out from the right side to form a rotating airflow to blow out the plasma for processing the surface of the product. The right end of the gun body 1 is fixedly installed with the hollow shaft 21. Since the position and size of the screw groove 73 are adapted to the position and size of the several threads 22, the circular shell 71 is threadedly fixed to the right part of the outer surface of the hollow shaft 21 and used in conjunction with the connecting device 3. When the processing range is larger than 10mm, the connecting cover 32 is used. When it is needed When the treatment area is smaller than 10mm, the connecting cover 32 can be unscrewed and the plasma nozzle 72 can be replaced. The threaded connection method is adopted, which is convenient for disassembly and replacement, solving the time-consuming and labor-intensive switching problem. Frequent twisting of the high-voltage wire can easily cause the aging of the high-voltage wire connector, causing safety hazards. The right end of the sleeve 31 is fixedly installed with the connecting cover 32. The motor drive 4 drives the gun body 1 to rotate at high speed as a whole, and the flame is ejected from the nozzle 35, thereby achieving a large area treatment effect. A number of circular holes are provided on the rear side of the nozzle 35 for balance and heat dissipation. The connecting cover 32 adopts a conical structure design, thereby processing the inner circumferential wall of the annular product, meeting the use requirements of the annular product. A rotating ring 34 is fixedly installed on the sleeve 31, and a number of anti-slip grooves 33 are opened on the rotating ring 34 to increase the friction with the operator's hand to prevent the hand from slipping when rotating the sleeve 31. In order to better facilitate operation and use, the entire device has a reasonable structural design and strong applicability, which is conducive to the use of direct-injection rotary compatible plasma spray guns.

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

Claims

1. A direct-injection, rotary-compatible plasma spray gun comprising a rear shell plate (9), characterized in that: The right end of the rear shell plate (9) is fixedly connected to a motor housing (8), a motor drive (4) is fixedly connected inside the motor housing (8), an output end of the motor drive (4) is fixedly connected to a gun body (1), a circular groove (10) is opened at the right end of the gun body (1), a main body device (2) is fixedly connected to the right end of the circular groove (10), a fixing device (7) is threadedly connected to the right part of the outer surface of the main body device (2), a connecting device (3) is threadedly connected to the middle part of the outer surface of the main body device (2), a protective device (5) is fixedly connected to the outer surface of the motor housing (8), two fixing caps (6) are fixedly connected to the left part of the outer surface of the protective device (5), and the two fixing caps (6) are symmetrically distributed up and down, and a cyclone part (11) is movably connected in the circular groove (10); The fixing device (7) comprises a circular shell (71), a screw groove (73) is formed in the circular shell (71), a plasma spray head (72) is fixedly connected to the middle of the right end of the circular shell (71), and the circular shell (71) is threadedly connected to the outer surface of the hollow shaft (21); The position and size of the screw groove (73) are compatible with the position and size of the plurality of threads (22). The plasma nozzle (72) is located on the right side of the electrode (23). The outer surface of the circular shell (71) does not contact the inner wall of the sleeve (31).

2. The direct-injection, rotary-compatible plasma spray gun according to claim 1, characterized in that: The protective device (5) comprises a metal shell (51), two mounting grooves (54) are formed on the left side of the outer surface of the metal shell (51), and the two mounting grooves (54) are symmetrically distributed in the upper and lower directions, and mounting holes (53) are formed on the upper and lower groove walls of the mounting grooves (54). A connecting groove (55) is formed in the metal shell (51), and a plurality of heat dissipation grooves (52) are formed on the outer surface of the metal shell (51). The metal shell (51) is fixedly connected to the outer surface of the motor shell (8).

3. The direct-injection, rotary-compatible plasma spray gun according to claim 1, characterized in that: The main device (2) comprises a hollow shaft (21), a plurality of threads (22) are engraved on the right portion of the outer surface of the hollow shaft (21), the right end of the hollow shaft (21) is fixedly connected to a connecting shaft (24), the right end of the connecting shaft (24) is fixedly connected to an electrode (23), and the hollow shaft (21) is fixedly connected to the right end of the motor drive (4).

4. The direct-injection, rotary-compatible plasma spray gun according to claim 3, characterized in that: The connecting device (3) comprises a sleeve (31), a rotating ring (34) is fixedly connected to the rear portion of the outer surface of the sleeve (31), a plurality of anti-slip grooves (33) are provided on the outer surface of the rotating ring (34), a connecting cover (32) is fixedly connected to the rear end of the sleeve (31), a nozzle (35) is provided at the right end of the connecting cover (32), and the sleeve (31) is threadedly connected to the outer surface of the hollow shaft (21).

5. The direct-injection, rotary-compatible plasma spray gun according to claim 4, characterized in that: The connecting cover (32) is in a conical structure, and a plurality of anti-slip grooves (33) are arranged in a ring array with the sleeve (31) as the center.

6. The direct-injection, rotary-compatible plasma spray gun according to claim 2, characterized in that: The plurality of heat dissipation slots (52) are arranged in a ring array with the metal shell (51) as the center, and the position and size of the two mounting holes (53) are adapted to the position and size of the two fixing caps (6).

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