A powder spray arm device for a powder spray machine

Abstract

The utility model discloses a powder spraying arm device of powder spraying machine belongs to spraying arm device technical field, it includes spraying arm main part, the recess is equipped with in the upper place of the center of the front end surface of spraying arm main part, the first movable slot is equipped with in the back place of the inside center of spraying arm main part, the second movable slot is equipped with in the inside center of spraying arm main part and is in the front, the first spraying structure is equipped with in the inside center of first movable slot, the spraying pipe is equipped with in the inside center of recess, the second spraying structure is equipped with in the front end surface center place of spraying pipe, in addition, the utility model discloses, can avoid powder to accumulate and jam in the material pipe, guarantee the stability of basic delivery, accelerate powder flow speed, promote spraying efficiency, in addition, can flexible adjustment stretch out length, combine the controllability of wind force delivery, can adapt to the spraying demand of different height, ensure spraying pipe movement process no deviation simultaneously, promote the stability of position regulation.

Description

Technical Field

[0001] This utility model belongs to the technical field of spraying arm devices, specifically a powder spraying arm device for a powder spraying machine. Background Technology

[0002] Powder coating machines are widely used in metal surface treatment, automobile manufacturing, furniture production and other fields. Their main function is to form a uniform coating on the surface of workpieces by spraying powder coatings to improve the appearance and corrosion resistance of the workpieces. The powder coating arm is an important component of the powder coating machine. Its design and performance directly affect the coating effect and efficiency. The coating arm is a key component that connects the spray gun and the powder supply system. Its main function is to guide the spray gun to spray the powder uniformly on the surface of the workpiece.

[0003] The existing powder coating arm devices of powder coating machines have the following main shortcomings: In existing powder coating machines, the powder coating arm is usually fixed or manually operated. Powder tends to accumulate in the feed tube during the conveying process, causing blockages. The powder flow rate is slow, resulting in low coating efficiency. The direction and angle adjustment of the spray gun rely on the simple rotation of the robotic arm or manual adjustment, which is easily affected by external forces and may cause deviation, resulting in inaccurate coating position. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a powder spraying arm device for a powder spraying machine, which solves the problem that in the prior art, which is usually fixed or manually operated, powder is prone to accumulate in the material pipe during the conveying process, causing blockage, and the powder flow speed is slow, resulting in low spraying efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a powder coating arm device for a powder coating machine, comprising a coating arm body, a groove provided at the upper center of the front end face of the coating arm body, a first movable groove provided at the rear center of the interior of the coating arm body, a second movable groove provided at the front center of the interior of the coating arm body, a first spraying structure provided at the center of the first movable groove, a spraying pipe provided at the center of the groove, and a second spraying structure provided at the center of the front end face of the spraying pipe; The first spraying structure includes a material tube, which is located at the lower center of the first movable groove. A motor is located at the rear center of the lower end face of the spraying arm body. The output end of the motor passes through the lower end face of the spraying arm body and the lower end face of the material tube to the inside of the material tube, and a spiral rod is fixedly connected to its end.

[0006] As a further embodiment of this utility model: an outer tube is provided at the center of the upper end face of the material tube, and an installation groove is provided on both sides of the center of the inner side wall of the outer tube, and an inner tube is sleeved on the inner side wall of the outer tube.

[0007] As a further embodiment of this utility model: mounting blocks are provided on both sides of the center of the outer wall of the inner tube, and the two mounting blocks are slidably connected to the center of the two mounting slots respectively. Fans are provided at the upper and lower parts of the center of the inner tube.

[0008] As a further embodiment of this utility model: the second spraying structure includes two adjusting heads, which are respectively rotatably connected to the upper and lower parts of the center of the front end face of the spraying pipe. Each of the two adjusting heads is provided with a spray nozzle at the center of the front end face. Each of the two side walls of the spraying pipe is provided with a sliding block, and each of the two inner side walls of the groove is provided with a sliding groove.

[0009] As a further embodiment of this utility model: guide blocks are provided at the upper part of one side of the front end face and the upper part of one side of the rear end face of the two sliding blocks, and guide grooves are provided at the center of the front inner wall and the center of the rear inner wall of the two sliding grooves, and the four guide blocks are respectively slidably connected to the center of the four guide grooves.

[0010] As a further embodiment of this utility model: a connecting pipe is provided at the lower center of the rear end face of the main body of the spraying arm, and a flange is fitted at the rear center of the outer side wall of the connecting pipe.

[0011] As a further embodiment of this utility model: an electric telescopic rod is provided at the center of the second movable groove, and the output end of the electric telescopic rod is fixedly connected to the center of the lower end face of the spray pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a motor to drive the screw rod to rotate, generating a screw thrust to prevent powder from accumulating and clogging inside the material pipe, thus ensuring the stability of the basic conveying. At the same time, the dual fans inside the inner tube generate airflow to form a secondary thrust, accelerating the powder flow speed and improving the spraying efficiency. In addition, the inner tube can flexibly adjust its extension length through the sliding fit between the mounting block and the outer tube mounting groove. Combined with the controllability of the pneumatic conveying, it can adapt to the spraying needs of different heights.

[0013] 2. In this utility model, when the spray pipe moves within the groove via an electric telescopic rod, the sliding block, sliding groove, guide block, and guide groove are nested together to form a double-track guide structure, ensuring that the spray pipe moves without deviation and improving the stability of position adjustment. Furthermore, the two adjustment heads can rotate independently, allowing the spray head to flexibly change the spraying angle, achieving a wide range of position adjustments, and also enabling fine-tuning of the angle to cover complex workpiece surfaces. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional sectional view of the present invention; Figure 3 This is a schematic diagram of the three-dimensional disassembled structure of this utility model; Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0015] In the diagram: 1. Main body of the spray arm; 2. Groove; 3. Spray pipe; 4. First spraying structure; 401. Material pipe; 402. Motor; 403. Spiral rod; 404. Outer pipe; 405. Mounting groove; 406. Inner pipe; 407. Mounting block; 408. Fan; 5. Second spraying structure; 501. Adjusting head; 502. Spray nozzle; 503. Sliding groove; 504. Guide groove; 505. Sliding block; 506. Guide block; 6. Electric telescopic rod; 7. Connecting pipe; 8. First movable groove; 9. Second movable groove. Detailed Implementation

[0016] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0017] like Figures 1-4 As shown, this utility model provides a technical solution: A powder coating arm device for a powder coating machine, comprising: The spraying arm body 1 has a groove 2 located at the upper center of its front end face, a first movable groove 8 located at the rear center of its interior, a second movable groove 9 located at the front center of its interior, a connecting pipe 7 located at the lower center of its rear end face, and a flange fitted at the rear center of the outer wall of the connecting pipe 7. An electric telescopic rod 6 is located at the center of the interior of the second movable groove 9, with its output end fixedly connected to the center of the lower end face of the spraying pipe 3. A first spraying structure 4 is located at the center of the interior of the first movable groove 8, and a spraying pipe 3 is located at the center of the interior of the groove 2. A second spraying structure 5 is located at the center of the front end face of the spraying pipe 3. Powder coating is transported to the device through the connecting pipe 7, which is fixedly connected to an external feeding system via a flange to ensure the stability of powder delivery.

[0018] The first spraying structure 4 includes a material pipe 401, which is located at the lower center of the first movable groove 8. A motor 402 is located at the rear center of the lower end face of the spraying arm body 1. The output end of the motor 402 passes through the lower end face of the spraying arm body 1 and the lower end face of the material pipe 401 and extends into the material pipe 401. A spiral rod 403 is fixedly connected to the end of the motor 402. An outer tube 404 is located at the center of the upper end face of the material pipe 401. An installation groove 405 is provided on both sides of the center of the inner side wall of the outer tube 404. An inner tube 406 is sleeved on the inner side wall of the outer tube 404. An installation block 407 is provided on both sides of the center of the outer side wall of the inner tube 406. The two installation blocks 407 are slidably connected to two mounting blocks 407 respectively. Inside the center of the groove 405, fans 408 are installed at the upper and lower parts of the center of the inner tube 406. By starting the motor 402, the screw rod 403 is driven to rotate inside the material tube 401. The screw rod 403 pushes the powder in the material tube 401 upward to the channel formed by the outer tube 404 and the inner tube 406. With the cooperation of the inner tube 406 and the outer tube 404, the inner tube 406 can slide along the mounting groove 405 on the inner side of the outer tube 404 through the mounting block 407, thereby adjusting the extension length of the inner tube 406. At the same time, the two fans 408 inside the inner tube 406 are started, generating airflow to push the powder upward along the inner tube 406, and finally spraying it out from the inner tube 406, completing the powder coating and conveying.

[0019] The second spraying structure 5 includes two adjusting heads 501, which are rotatably connected to the upper and lower parts of the center of the front end face of the spraying pipe 3, respectively. Each adjusting head 501 has a spray nozzle 502 at the center of its front end face. Each side wall of the spraying pipe 3 has a sliding block 505 at its center, and each inner side wall of the groove 2 has a sliding groove 503 at its center. Each sliding block 505 has a guide block 506 at the upper part of one side of its front end face and the upper part of one side of its rear end face. Each sliding groove 503 has a guide groove 504 at the center of its front inner wall and the center of its rear inner wall. The four guide blocks 506 are slidably connected inside the four guide grooves 504. At the center, when the electric telescopic rod 6 in the second movable groove 9 extends or retracts, it will drive the spray pipe 3 to move in the groove 2. The sliding blocks 505 on both sides of the spray pipe 3 slide along the sliding groove 503 on the inner side of the groove 2, and the guide block 506 on the sliding block 505 is embedded in the guide groove 504 in the sliding groove 503 to ensure that the spray pipe 3 moves stably and does not deviate, thereby adjusting the overall position of the second spray structure 5. At the same time, the two adjusting heads 501 at the front end of the spray pipe 3 can be rotated to adjust the angle, driving the nozzle 502 at its front end to change the spraying direction. The powder is input into the spray pipe 3 through the first spray structure 4 and sprayed out through the adjusted nozzle 502 to complete the powder spraying.

[0020] The working principle of this utility model is as follows: The powder coating machine is fixedly connected to the external feeding system through the outer flange of the connecting pipe 7 to ensure sealing and stability. After the powder enters the material pipe 401 in the first movable groove 8, the starting motor 402 drives the screw rod 403 to rotate at high speed. The screw rod 403 uses the thrust of the screw blades to stably transport the powder at the bottom of the material pipe 401 upward, avoiding powder accumulation and blockage, and ensuring continuous feeding. The powder pushed by the screw rod 403 enters the channel formed by the outer pipe 404 and the inner pipe 406. At the same time, the fans 408 at the top and bottom of the inner pipe 406 are started to generate a strong airflow. The lower fan 408 blows air upward, pushing the powder to move upward along the inner pipe 406, and the upper fan 408 accelerates the powder flow rate, so that the powder is sprayed out of the inner pipe 406 at high speed under the action of the airflow. At the same time, the electric telescopic rod 6 in the second movable groove 9 is started. When its output end extends and retracts, it drives the coating pipe 3 to move up and down in the groove 2.

[0021] During the movement, the sliding blocks 505 on both sides of the spray pipe 3 slide along the sliding groove 503 inside the groove 2. At the same time, the guide block 506 on the sliding block 505 is embedded in the guide groove 504 inside the sliding groove 503 and slides synchronously. Meanwhile, the inner tube 406 can slide along the mounting groove 405 on the inner side wall of the outer tube 404 through the mounting block 407 on the outer side wall, so as to adjust the extension length of the inner tube 406 to adapt to different spraying height requirements. The movement trajectory of the spray pipe 3 is restricted by the cooperation of the guide block 506 and the guide groove 504 to ensure its stable translation and avoid deviation, thereby adjusting the position of the second spraying structure 5. The two adjustment heads 501 at the front end of the spray pipe 3 can rotate around the connection point to drive the front nozzle 502 to change the spraying direction. After adjusting the up and down tilt angle, the powder inside the spray pipe 3 is sprayed out through the adjusted nozzle 502 to carry out the spraying work.

[0022] Furthermore, the control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Since this utility model is used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0023] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A powder coating arm device for a powder coating machine, characterized in that: The system includes a spray arm body (1), a groove (2) is provided at the upper center of the front end face of the spray arm body (1), a first movable groove (8) is provided at the rear center of the interior of the spray arm body (1), a second movable groove (9) is provided at the front center of the interior of the spray arm body (1), a first spraying structure (4) is provided at the center of the interior of the first movable groove (8), a spraying pipe (3) is provided at the center of the interior of the groove (2), and a second spraying structure (5) is provided at the center of the front end face of the spraying pipe (3). The first spraying structure (4) includes a material tube (401), which is located at the lower center of the first movable groove (8). A motor (402) is provided at the rear center of the lower end face of the spraying arm body (1). The output end of the motor (402) passes through the lower end face of the spraying arm body (1) and the lower end face of the material tube (401) and is connected to the inside of the material tube (401). A spiral rod (403) is fixedly connected to the end of the motor (402).

2. The powder coating arm device of a powder coating machine according to claim 1, characterized in that: The material tube (401) is provided with an outer tube (404) at the center of the upper end face, and the inner wall of the outer tube (404) is provided with mounting grooves (405) on both sides. The inner wall of the outer tube (404) is fitted with an inner tube (406).

3. The powder coating arm device of a powder coating machine according to claim 2, characterized in that: The inner tube (406) has mounting blocks (407) on both sides of the center of the outer wall. The two mounting blocks (407) are slidably connected to the center of the two mounting slots (405). The inner tube (406) has fans (408) on the upper and lower sides of the center of the inner tube (406).

4. The powder coating arm device of a powder coating machine according to claim 1, characterized in that: The second spraying structure (5) includes two adjusting heads (501), which are rotatably connected to the upper and lower center of the front end face of the spraying pipe (3), respectively. A nozzle (502) is provided at the center of the front end face of each of the two adjusting heads (501). A sliding block (505) is provided at the center of both side walls of the spraying pipe (3), and a sliding groove (503) is provided at the center of both inner side walls of the groove (2).

5. The powder coating arm device of a powder coating machine according to claim 4, characterized in that: Guide blocks (506) are provided on the upper part of the front face and the upper part of the rear face of the two sliding blocks (505). Guide grooves (504) are provided at the center of the front inner wall and the center of the rear inner wall of the two sliding grooves (503). The four guide blocks (506) are slidably connected to the center of the four guide grooves (504).

6. The powder coating arm device of a powder coating machine according to claim 1, characterized in that: A connecting pipe (7) is provided at the lower center of the rear end face of the main body (1) of the spraying arm, and a flange is fitted at the rear center of the outer side wall of the connecting pipe (7).

7. The powder coating arm device of a powder coating machine according to claim 1, characterized in that: An electric telescopic rod (6) is provided at the center of the second movable groove (9), and the output end of the electric telescopic rod (6) is fixedly connected to the center of the lower end face of the spray pipe (3).

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