Automatic spraying device for metal parts

Abstract

The utility model discloses a kind of metal parts automatic spraying processing devices, including protection box, rotating equipment is installed in the protection box, the lower end of the rotating equipment is connected with rotating shaft, the lower end of the rotating shaft is fixed with fixed block, mobile ring is sleeved on the rotating shaft, the upper end of the fixed block is fixed with cylinder on both sides, the piston rod end of the cylinder is fixed in the lower end of mobile ring on both sides, four rotating rods are rotatably connected with one week equidistance of the mobile ring, one end of the rotating rod is rotatably connected with connecting rod. The utility model can quickly, comprehensively cover the surface of metal parts, avoid the problem that traditional fixed spray head needs to adjust part position multiple times to complete spraying, greatly shorten spraying time, improve production efficiency, can adapt to the spraying demand of metal parts of different specifications and shapes, with strong versatility and flexibility, can satisfy diversified production requirements.

Description

Technical Field

[0001] This utility model relates to the field of spray coating technology, and in particular to an automated spray coating device for metal parts. Background Technology

[0002] In modern manufacturing, metal parts are widely used, and spraying, as a crucial step in the metal parts processing, directly impacts part performance and production costs in terms of quality and efficiency. Traditional metal parts spraying methods typically employ fixed nozzles positioned around the perimeter of the part. This method has several drawbacks. For example, due to the fixed nozzle positions, only specific areas can be sprayed. For complex-shaped metal parts, achieving a comprehensive and uniform spraying effect is difficult, resulting in inconsistent spraying quality. To ensure adequate surface coverage, the amount of paint used is often increased, leading to paint waste and increased production costs. Therefore, we propose an automated metal parts spraying processing device to address these issues. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automated spraying process device for metal parts.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automated metal parts spraying processing device includes a protective box, inside which a rotating device is installed. The lower end of the rotating device is connected to a rotating shaft, and a fixing block is fixed to the lower end of the rotating shaft. A movable ring is sleeved on the rotating shaft. Cylinders are fixed to both sides of the upper end of the fixing block. The piston rods of the cylinders are fixed to both sides of the lower end of the movable ring. Four rotating rods are rotatably connected at equal intervals around the circumference of the movable ring. One end of each rotating rod is rotatably connected to a connecting rod. One end of each connecting rod is rotatably connected to the circumference of the fixing block. A spray head is fixed to one end of each rotating rod, and a delivery pipeline is connected to the spray head.

[0006] Preferably, the rotating device includes a mounting bracket fixed inside a protective box. A servo motor is fixed to one side of the mounting bracket, and a gearbox is fixed to the other side of the mounting bracket. A connecting shaft is installed inside the gearbox. The upper end of the rotating shaft is connected to the lower end of the gearbox. Sprockets are fixedly mounted on both the output shaft of the servo motor and the connecting shaft, and a chain is connected between the two sprockets.

[0007] Preferably, the lower end of the protective box is provided with a fixed frame, and the rotating shaft is rotatably sleeved on the fixed frame.

[0008] Preferably, the delivery pipeline includes a connecting pipe between the two nozzles, one end of which is connected to the delivery pipe.

[0009] Preferably, mounting plates are fixed on both sides of the protective box, and the mounting plates are provided with two mounting holes.

[0010] In this utility model, when spraying:

[0011] 1. Installation and preparation: Install the entire device in a suitable position through the mounting holes on the mounting plates on both sides of the protective box, and connect the delivery pipe to the paint supply system to ensure that the paint can be delivered smoothly;

[0012] 2. Adjusting the nozzle position: According to the specifications of the metal parts to be sprayed, start the cylinder. The piston rod of the cylinder extends and retracts, which drives the moving ring sleeved on the rotating shaft to move up and down. The movement of the moving ring will cause the rotating rod connected to it to rotate. The rotation of the rotating rod, through the connection between the connecting rod and the fixed block, realizes the expansion or contraction of the nozzle, thereby adjusting the nozzle to the appropriate spraying position.

[0013] 3. Start the rotating equipment: Turn on the servo motor. The output shaft of the servo motor drives the sprocket on it to rotate. Through the chain transmission, the power is transmitted to the sprocket on the connecting shaft in the gearbox, causing the connecting shaft to rotate. After the gearbox adjusts the speed, it transmits the power to the rotating shaft, which drives the rotating shaft and the nozzle connected to it to rotate back and forth.

[0014] 4. Spraying operation: The paint enters from the delivery pipe and is distributed to each nozzle through the connecting pipe. The nozzles spray the metal parts while rotating to ensure that the surface of the parts can be fully and evenly sprayed.

[0015] This utility model has the following advantages:

[0016] 1. The reciprocating rotation and adjustable position of the spray head can quickly and comprehensively cover the surface of metal parts, avoiding the problem of traditional fixed spray heads requiring multiple adjustments to the part position to complete the spraying, greatly shortening the spraying time and improving production efficiency.

[0017] 2. The position of the spray nozzle can be adjusted according to the specifications of the parts, and the rotation of the spray nozzle can make the paint sprayed more evenly on the surface of the parts, effectively avoiding the problems of spraying dead corners and uneven thickness, improving the spraying quality and enhancing the overall quality of the product.

[0018] 3. This equipment can adapt to the spraying needs of metal parts of different specifications and shapes, and has strong versatility and flexibility, which can meet diverse production requirements.

[0019] In summary, this invention can quickly and comprehensively cover the surface of metal parts, avoiding the problem of traditional fixed spray nozzles requiring multiple adjustments to the part position to complete the spraying. It greatly shortens the spraying time, improves production efficiency, and can adapt to the spraying needs of metal parts of different specifications and shapes. It has strong versatility and flexibility, and can meet diverse production requirements. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the rotating device and the shaft connection of this utility model;

[0021] Figure 2 This is a structural diagram of the present invention;

[0022] Figure 3 This is a structural diagram showing the connection between the cylinder and the moving ring of this utility model;

[0023] Figure 4 for Figure 1 Enlarged view of the structure at point A.

[0024] In the diagram: 1. Fixed frame, 2. Rotating rod, 3. Conveying pipe, 4. Connecting pipe, 5. Connecting rod, 6. Nozzle, 7. Fixed block, 8. Cylinder, 9. Moving ring, 10. Rotating shaft, 11. Protective box, 12. Gearbox, 13. Servo motor, 14. Connecting shaft, 15. Sprocket, 16. Chain, 17. Mounting bracket, 18. Mounting plate, 19. Mounting hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figure 1-4 An automated metal parts spraying processing device includes a protective box 11, a rotating device installed inside the protective box 11, a rotating shaft 10 connected to the lower end of the rotating device, a fixed block 7 fixed to the lower end of the rotating shaft 10, a movable ring 9 sleeved on the rotating shaft 10, and cylinders 8 fixed on both sides of the upper end of the fixed block 7. The piston rod of the cylinder 8 extends and retracts, causing the movable ring 9 to slide along the axial direction of the rotating shaft 10. The movable ring 9 is connected to the rotating rod 2 through a hinge. Its up and down movement will drive the rotating rod 2 to rotate around the connecting rod 5 on the fixed block 7, forming a linkage structure similar to the opening and closing of an umbrella rib.

[0027] The piston rod of cylinder 8 is fixed to the lower two sides of the moving ring 9. When the piston rod extends, the moving ring 9 moves upward and the rotating rod 2 retracts inward, reducing the distance between the nozzle 6 and the surface of the part (suitable for small parts). When the piston rod retracts, the moving ring 9 moves downward and the rotating rod 2 extends outward, moving the nozzle 6 away from the part (suitable for large parts). The four nozzles 6 are evenly distributed around the fixed block 7 (with an included angle of 90°). The radial position of the nozzles 6 is precisely controlled by adjusting the cylinder stroke to ensure that the spraying areas of adjacent nozzles do not overlap or have gaps, achieving 360° full coverage.

[0028] Four rotating rods 2 are rotatably connected at equal intervals around the circumference of the moving ring 9. One end of the rotating rod 2 is rotatably connected to a connecting rod 5. One end of the four connecting rods 5 is rotatably connected to the circumference of the fixed block 7. One end of the rotating rod 2 is fixed to a nozzle 6, and a delivery pipeline is connected to the nozzle 6.

[0029] The rotating device includes a mounting bracket 17 fixed inside the protective box 11. A servo motor 13 is fixed on one side of the mounting bracket 17. The output shaft of the servo motor 13 drives the drive sprocket 15 to rotate via a key connection. The chain 16 transmits power to the driven sprocket 15 on the input shaft of the gearbox 12, driving the connecting shaft 14 to rotate. The servo motor 13 can be set to a reciprocating rotation mode (such as rotating 180° forward and then 180° backward). With the radial position adjustment of the nozzle 6, uniform spraying of complex curved surfaces of parts (such as stepped shafts and irregularly shaped parts) can be achieved.

[0030] A gearbox 12 is fixed on the other side of the mounting bracket 17. A connecting shaft 14 is installed inside the gearbox 12. The upper end of the rotating shaft 10 is connected to the lower end of the gearbox 12. Sprockets 15 are fixedly mounted on both the output shaft of the servo motor 13 and the connecting shaft 14. A chain 16 is connected between the two sprockets 15. The gearbox 12 uses a gear reduction mechanism to convert the high-speed, low-torque output of the servo motor into low-speed, high-torque output, ensuring that the rotating shaft 10 drives the nozzle 6 to rotate smoothly (the speed is set by the PLC program, ranging from 5 to 30 rpm). The PLC controller is connected to an external sensor to realize automatic identification of part size and match nozzle position parameters, thereby improving production efficiency.

[0031] The lower end of the protective box 11 is provided with a fixed frame 1. The rotating shaft 10 is rotatably sleeved on the fixed frame 1. The metal parts to be sprayed are placed below the fixed frame 1. The parts are positioned by an external three-jaw chuck to ensure that their center coincides with the axis of the rotating shaft 10, so as to avoid uneven coating thickness due to the eccentricity of the parts during spraying.

[0032] The delivery pipeline includes a connecting pipe 4 connecting the two nozzles 6. One end of the connecting pipe 4 is connected to the delivery pipe 3. The delivery pipe 3 is connected to the pressure pump and paint storage tank of the paint supply system through a quick-connect coupling. Check the pipeline sealing to prevent paint leakage.

[0033] The four nozzles 6 are high-pressure atomizing nozzles with a nozzle diameter of 0.5-1.2mm. During the spraying process, the paint is sprayed out from the nozzles 6 under the action of the pressure pump (working pressure 0.3-0.8MPa) to form a fan-shaped mist.

[0034] Mounting plates 18 are fixed on both sides of the protective box 11, and the mounting plates 18 are provided with two mounting holes 19.

[0035] In this utility model, when spraying:

[0036] 1. Installation and preparation: Install the entire device in a suitable position through the mounting holes 19 on the mounting plates 18 on both sides of the protective box 11, and connect the delivery pipe 3 to the paint supply system to ensure that the paint can be delivered smoothly;

[0037] 2. Adjust the nozzle position: According to the specifications of the metal parts to be sprayed, start the cylinder 8. The piston rod of the cylinder 8 extends and retracts, which drives the moving ring 9 sleeved on the rotating shaft 10 to move up and down. The movement of the moving ring 9 will cause the rotating rod 2 connected to it to rotate. The rotation of the rotating rod 2, through the connection relationship between the connecting rod 5 and the fixed block 7, realizes the expansion or contraction of the nozzle 6, thereby adjusting the nozzle 6 to the appropriate spraying position.

[0038] 3. Start the rotating equipment: Turn on the servo motor 13. The output shaft of the servo motor 13 drives the sprocket 15 on it to rotate. Through the transmission of the chain 16, the power is transmitted to the sprocket 15 on the connecting shaft 14 in the gearbox 12, causing the connecting shaft 14 to rotate. After the gearbox 12 adjusts the speed, it transmits the power to the rotating shaft 10, which drives the rotating shaft 10 and the nozzle 6 connected to it to rotate back and forth.

[0039] 4. Spraying operation: The paint enters from the delivery pipe 3 and is distributed to each nozzle 6 through the connecting pipe 4. The nozzle 6 sprays the metal parts while rotating to ensure that the surface of the parts can be fully and evenly sprayed.

[0040] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An automated spray coating device for metal parts, comprising a protective housing (11), characterized in that, The protective box (11) is equipped with a rotating device. The lower end of the rotating device is connected to a rotating shaft (10). The lower end of the rotating shaft (10) is fixed with a fixing block (7). A moving ring (9) is sleeved on the rotating shaft (10). Cylinders (8) are fixed on both sides of the upper end of the fixing block (7). The piston rod end of the cylinder (8) is fixed on both sides of the lower end of the moving ring (9). Four rotating rods (2) are rotatably connected to the circumference of the moving ring (9). One end of the rotating rod (2) is rotatably connected to a connecting rod (5). One end of the four connecting rods (5) is rotatably connected to the circumference of the fixing block (7). One end of the rotating rod (2) is fixed with a nozzle (6). A delivery pipeline is connected to the nozzle (6).

2. The automated spray coating device for metal parts according to claim 1, characterized in that: The rotating device includes a mounting bracket (17) fixed inside a protective box (11). A servo motor (13) is fixed on one side of the mounting bracket (17), and a gearbox (12) is fixed on the other side of the mounting bracket (17). A connecting shaft (14) is installed inside the gearbox (12). The upper end of the rotating shaft (10) is connected to the lower end of the gearbox (12). Sprockets (15) are fixedly mounted on both the output shaft of the servo motor (13) and the connecting shaft (14). A chain (16) is connected between the two sprockets (15).

3. The automated spray coating device for metal parts according to claim 1, characterized in that: The lower end of the protective box (11) is provided with a fixed frame (1), and the rotating shaft (10) is rotatably sleeved on the fixed frame (1).

4. The automated spray coating device for metal parts according to claim 1, characterized in that: The delivery pipeline includes a connecting pipe (4) connecting the two nozzles (6), and one end of the connecting pipe (4) is connected to the delivery pipe (3).

5. The automated spray coating device for metal parts according to claim 1, characterized in that: The protective box (11) is fixed with mounting plates (18) on both sides, and the mounting plates (18) are provided with two mounting holes (19).

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