Plasma torch rotating torch head

Abstract

The utility model discloses a kind of plasma torch rotary gun head, the utility model relates to the technical field of plasma torch, including torch main body, rotating assembly and spraying assembly are arranged in the inside of torch main body, rotating assembly includes first rotary ring, second rotary ring, rotating block, first connecting rod and second connecting rod, first rotary ring is rotatably connected in the inner wall of torch main body, second rotary ring is rotatably connected in the inner wall of first rotary ring, one end of first connecting rod is rotatably connected with the side of first rotary ring, the side of rotating block is rotatably connected with the side of second rotary ring, one end of second connecting rod is rotatably connected with the side of rotating block, the utility model has the advantages that: rotating disc and spray head are driven by spiral blade to rotate, make spray head do circular motion in protective box, can spray coating material in spiral shape, increase spraying coverage, can improve spraying efficiency, especially suitable for the processing of large-area workpiece.

Description

Technical Field

[0001] This utility model relates to the field of plasma spray gun technology, specifically a rotating nozzle for a plasma spray gun. Background Technology

[0002] Plasma rotary spray guns use compressed air or nitrogen to spray plasma onto the surface of a workpiece. When the plasma encounters the surface of the object being treated, chemical reactions and physical changes occur, resulting in surface cleaning and removal of hydrocarbon contaminants such as grease and additives. Depending on the material composition, the molecular chain structure on the surface is altered, generating free groups such as hydroxyl and carboxyl groups, thereby improving the adsorption capacity, reliability, and durability of the material surface.

[0003] In existing technologies, the nozzle is fixed at the front end of the spray gun or can only rotate within a small range. During spraying, the spray gun or workpiece needs to be moved frequently, resulting in low efficiency. Especially for large-area workpieces, repeated spraying can easily lead to wasted time and increased material consumption. To address this, we propose a rotating nozzle for plasma spray guns. Summary of the Invention

[0004] The purpose of this invention is to provide a rotating nozzle for a plasma spray gun.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a plasma spray gun rotating head, comprising a spray gun body, wherein a rotating component and a spraying component are disposed inside the spray gun body;

[0006] The rotating assembly includes a first rotating ring, a second rotating ring, a rotating block, a first connecting rod, and a second connecting rod. The first rotating ring is rotatably connected to the inner wall of the spray gun body, the second rotating ring is rotatably connected to the inner wall of the first rotating ring, one end of the first connecting rod is rotatably connected to the side of the first rotating ring, the side of the rotating block is rotatably connected to the side of the second rotating ring, and one end of the second connecting rod is rotatably connected to the side of the rotating block.

[0007] The spraying assembly includes a protective box, a spray nozzle, a turntable, and a spiral blade. The side of the turntable is rotatably connected to the inner wall of the protective box. One end of the spray nozzle is connected to the side of the turntable. One end of the spiral blade is connected to the other side of the turntable. The side of the spiral blade is rotatably connected to the inner wall of the protective box. The side of the spray nozzle is rotatably connected to the inner wall of the protective box.

[0008] As a further embodiment of this utility model: the inner wall of the spray gun body is connected to a first servo motor, and the swing arm of the first servo motor is rotatably connected to the other end of the first connecting rod.

[0009] As a further embodiment of this utility model: a second servo motor is connected to the inner wall of the spray gun body, and the swing arm of the second servo motor is rotatably connected to the other end of the second connecting rod.

[0010] As a further embodiment of this utility model: the rotating block rotates horizontally with respect to the second connecting rod, and the rotating block rotates vertically with respect to the second rotating ring.

[0011] As a further embodiment of this utility model: the side of the protective box is connected to the inner wall of the second rotating ring, and the size of the turntable matches the size of the inner wall of the protective box.

[0012] As a further embodiment of this utility model: the protective box is connected to the spray gun body via a flexible hose, and one end of the nozzle penetrates the side wall of the turntable and communicates with the inside of the protective box.

[0013] Compared with the prior art, the beneficial effects of this utility model by adopting the above technical solution are as follows:

[0014] 1. This utility model uses spiral blades to drive the turntable and nozzle to rotate, so that the nozzle makes circular motion inside the protective box, which can spray the coating material in a spiral shape, increasing the coating coverage area and improving the coating efficiency. It is especially suitable for processing large-area workpieces.

[0015] 2. This utility model uses a first servo motor to drive a first rotating ring to rotate the spraying assembly horizontally, and a second servo motor to push a second rotating ring to swing vertically through a rotating block, so that the nozzle can achieve multi-angle spraying under the combined motion of horizontal rotation and vertical pitch and yaw, thus meeting the processing needs of complex workpiece surfaces.

[0016] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the first connecting rod in an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the first servo motor in an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the first rotating ring in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the second rotating ring in an embodiment of the present invention;

[0022] Figure 6This is a schematic diagram of the rotating block in an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the turntable in an embodiment of the present utility model;

[0024] Figure 8 This is a schematic diagram of the nozzle in an embodiment of the present invention.

[0025] In the diagram: 1. Spray gun body; 2. Rotating assembly; 21. First rotating ring; 22. Second rotating ring; 23. Rotating block; 24. First servo motor; 25. First connecting rod; 26. Second servo motor; 27. Second connecting rod; 3. Spraying assembly; 31. Protective box; 32. Spray nozzle; 33. Turntable; 34. Spiral blade. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.

[0027] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0028] Please see the appendix Figure 1 -Appendix Figure 8 The present invention relates to a plasma spray gun rotating head, comprising a spray gun body 1, wherein a rotating component 2 and a spraying component 3 are provided inside the spray gun body 1;

[0029] In embodiment 1, the rotating assembly 2 includes a first rotating ring 21, a second rotating ring 22, a rotating block 23, a first connecting rod 25, and a second connecting rod 27. The first rotating ring 21 is rotatably connected to the inner wall of the spray gun body 1, and the second rotating ring 22 is rotatably connected to the inner wall of the first rotating ring 21. One end of the first connecting rod 25 is rotatably connected to the side of the first rotating ring 21, and the side of the rotating block 23 is rotatably connected to the side of the second rotating ring 22. One end of the second connecting rod 27 is rotatably connected to the side of the rotating block 23. A first servo motor 24 is connected to the inner wall of the spray gun body 1, and the swing arm of the first servo motor 24 is rotatably connected to the other end of the first connecting rod 25. A second servo motor 26 is connected to the inner wall of the spray gun body 1, and the swing arm of the second servo motor 26 is rotatably connected to the other end of the second connecting rod 27. The rotating block 23 rotates horizontally with the second connecting rod 27, and the rotating block 23 rotates vertically with the second rotating ring 22.

[0030] Specifically, the first servo motor 24 swings its arm clockwise or counterclockwise, which pushes the first rotating ring 21 to rotate around the central axis of the spray gun through the first connecting rod 25, causing the entire spraying assembly 3 to rotate horizontally synchronously. The second servo motor 26 swings its arm up and down, which pushes the rotating block 23 to rotate around the vertical axis through the second connecting rod 27, causing the second rotating ring 22 to pitch on the inner wall of the first rotating ring 21. If the second servo motor 26 is linked with the first servo motor 24, the combined yaw motion of the nozzle 32 can be realized.

[0031] In embodiment 2, the spraying assembly 3 includes a protective box 31, a nozzle 32, a turntable 33, and a spiral blade 34. The side of the turntable 33 is rotatably connected to the inner wall of the protective box 31. One end of the nozzle 32 is connected to the side of the turntable 33. One end of the spiral blade 34 is connected to the other side of the turntable 33. The side of the spiral blade 34 is rotatably connected to the inner wall of the protective box 31. The side of the nozzle 32 is rotatably connected to the inner wall of the protective box 31. The side of the protective box 31 is connected to the inner wall of the second rotating ring 22. The size of the turntable 33 matches the size of the inner wall of the protective box 31. The protective box 31 is connected to the spray gun body 1 through a hose. One end of the nozzle 32 passes through the side wall of the turntable 33 and communicates with the inside of the protective box 31.

[0032] Specifically, the spraying material enters the bottom of the protective box 31 from the spray gun body 1 through the hose. The spiral blades 34 rotate with the turntable 33, and the material is transported upward to the nozzle 32 inlet by centrifugal force and spiral thrust. The turntable 33 drives the nozzle 32 to make a circular motion, so that the nozzle 32 forms a ring spraying trajectory inside the protective box 31. The material is sprayed out in a spiral shape, and the coverage area is 2-3 times larger than that of the traditional fixed nozzle.

[0033] Working principle:

[0034] First, when the first servo motor 24 is activated, the swing arm drives the first connecting rod 25 to swing, which in turn pushes the first rotating ring 21 to rotate horizontally on the inner wall of the spray gun body 1 (rotating around the central axis of the spray gun). The rotation of the first rotating ring 21 is transmitted to the spraying assembly 3 through the second rotating ring 22 connected to the inner wall, so that the entire spraying assembly 3 rotates horizontally synchronously with the first rotating ring 21. The second servo motor 26 is also fixed on the inner wall of the spray gun body 1. The swing arm is rotatably connected to one end of the second connecting rod 27, and the other end of the second connecting rod 27 is rotatably connected to the side of the rotating block 23. The rotating block 23 is simultaneously rotatably connected to the side of the second rotating ring 22. When the second servo motor 26 is activated, the swing arm drives the second connecting rod 27 to swing, which pushes the rotating block 23 to rotate in the vertical direction (in a plane perpendicular to the central axis of the spray gun), which in turn drives the second rotating ring 22 to swing vertically on the inner wall of the first rotating ring 21. Finally, the spraying assembly 3 achieves the pitch or yaw action of the nozzle 32 by the vertical swing of the second rotating ring 22.

[0035] The coating material (such as plasma or powder) is delivered from the spray gun body 1 to the protective box 31 through a hose. The turntable 33 is rotatably connected to the inner wall of the protective box 31. A spiral blade 34 is installed on one side of the turntable 33 and the nozzle 32 is connected to the other side. When the coating material moves, it drives the spiral blade 34 to rotate. The spiral blade 34 can then drive the nozzle 32 to rotate through the turntable 33. After passing through the spiral blade 34, the coating material enters the nozzle 32. The rotation of the nozzle 32 in the protective box 31 can increase the coating area. The nozzle 32 adjusts its angle with the movement of the rotating component 2 to spray plasma or powder in a specific direction, thereby achieving cleaning, modification, or coating of the workpiece surface. The protective box 31 is connected to the inner wall of the second rotating ring 22. Therefore, the angle adjustment of the coating component 3 is directly controlled by the rotating component 2 to ensure that the movement of the nozzle 32 is synchronized with the rotation trajectory. At this point, the entire workflow is completed.

[0036] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0039] For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. A plasma spray gun rotating head, comprising a spray gun body (1), characterized in that: The spray gun body (1) is equipped with a rotating component (2) and a spraying component (3). The rotating assembly (2) includes a first rotating ring (21), a second rotating ring (22), a rotating block (23), a first connecting rod (25), and a second connecting rod (27). The first rotating ring (21) is rotatably connected to the inner wall of the spray gun body (1). The second rotating ring (22) is rotatably connected to the inner wall of the first rotating ring (21). One end of the first connecting rod (25) is rotatably connected to the side of the first rotating ring (21). The side of the rotating block (23) is rotatably connected to the side of the second rotating ring (22). One end of the second connecting rod (27) is rotatably connected to the side of the rotating block (23). The spraying assembly (3) includes a protective box (31), a nozzle (32), a turntable (33), and a spiral blade (34). The side of the turntable (33) is rotatably connected to the inner wall of the protective box (31). One end of the nozzle (32) is connected to the side of the turntable (33). One end of the spiral blade (34) is connected to the other side of the turntable (33). The side of the spiral blade (34) is rotatably connected to the inner wall of the protective box (31). The side of the nozzle (32) is rotatably connected to the inner wall of the protective box (31).

2. The plasma spray gun rotating head according to claim 1, characterized in that: The inner wall of the spray gun body (1) is connected to a first servo motor (24), and the swing arm of the first servo motor (24) is rotatably connected to the other end of the first connecting rod (25).

3. The plasma spray gun rotating head according to claim 1, characterized in that: The inner wall of the spray gun body (1) is connected to a second servo motor (26), and the swing arm of the second servo motor (26) is rotatably connected to the other end of the second connecting rod (27).

4. A plasma spray gun rotating head according to claim 1, characterized in that: The rotating block (23) rotates horizontally with the second connecting rod (27), and the rotating block (23) rotates vertically with the second rotating ring (22).

5. A plasma spray gun rotating head according to claim 1, characterized in that: The side of the protective box (31) is connected to the inner wall of the second rotating ring (22), and the size of the turntable (33) matches the size of the inner wall of the protective box (31).

6. A plasma spray gun rotating head according to claim 1, characterized in that: The protective box (31) is connected to the spray gun body (1) via a flexible hose.

7. A plasma spray gun rotating head according to claim 6, characterized in that: One end of the nozzle (32) penetrates the side wall of the turntable (33) and is connected to the inside of the protective box (31).

Images