Continuous coating device for plastic parts

Abstract

The utility model discloses a continuous coating device for plastic parts, which relates to the technical field of plastic parts, and comprises an equipment support frame, a rotary spraying component is arranged above the equipment support frame, a suspension conveying component is arranged above the rotary spraying component, a driving device is arranged in the equipment support frame, and the suspension conveying component is arranged above the rotary spraying component. The driving device is used for driving the rotary spraying assembly to conduct rotary spraying. According to the utility model, through the combination of the suspension conveying assembly and the multi-station rotary spraying assembly, the automatic continuous coating of plastic parts is realized, and the production efficiency is greatly improved. Compared with traditional single-station spraying equipment, the production capacity can be improved by more than 50%. Due to the symmetrical distribution and rotary design of the arc-shaped spraying frames, the plastic parts can be covered at multiple angles in the spraying process, and spraying dead angles of a traditional fixed spraying gun are avoided.

Description

Technical Field

[0001] This utility model relates to the field of plastic parts technology, and specifically to a continuous coating device for plastic parts. Background Technology

[0002] In the field of plastic parts coating, traditional spraying equipment has many technical shortcomings:

[0003] Low production efficiency: Early equipment was mostly designed for single workstations, requiring manual loading and unloading, and the equipment needed to be frequently started and stopped during the spraying process, resulting in limited production capacity. For example, traditional reciprocating spraying machines could only process a maximum of 30-50 products per hour, which could not meet the needs of large-scale industrial production.

[0004] Unstable coating quality: Fixed spray guns struggle to achieve full coverage of complex curved plastic parts, easily leading to defects such as missed areas and runs. To ensure quality, manual touch-ups are often necessary, increasing labor costs and production time.

[0005] Serious resource waste: Traditional spraying methods lack precision in atomization and spray control of paint, resulting in large amounts of paint being dispersed into the air, causing not only material waste but also environmental pollution. Statistics show that the effective utilization rate of paint in traditional spraying processes is only 40% to 60%.

[0006] Poor equipment adaptability: Existing equipment is usually designed for specific products and is difficult to adapt to diverse production needs. When product specifications or shapes change, large-scale equipment modifications are required, which are costly and time-consuming.

[0007] This invention effectively solves the aforementioned problems through an innovative combination of a rotary spraying assembly and a suspended conveying assembly. Its multi-station rotary spraying structure, precise angle control system, and modular design not only improve coating efficiency and quality but also reduce production costs and environmental burden, meeting the urgent needs of modern manufacturing for efficient, environmentally friendly, and intelligent production equipment. Practical application has verified that this device can be widely used in the continuous coating production of plastic parts such as automotive interior components, electronic product casings, and toys, demonstrating significant economic and social benefits. Utility Model Content

[0008] The purpose of this invention is to provide a continuous coating device for plastic parts to solve the problems mentioned in the background art.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0010] A continuous coating device for plastic parts includes an equipment support frame, a rotary spraying assembly is arranged above the equipment support frame, and a suspended conveying assembly is arranged above the rotary spraying assembly.

[0011] The equipment support frame is equipped with a drive device, which is used to drive the rotary spraying assembly to perform rotary spraying.

[0012] The rotary spraying assembly includes a rotary disk, an arc-shaped spray frame is fixedly connected to the upper surface of the rotary disk, a bushing is fixedly connected to the center of the bottom surface of the rotary disk, a first pulley is fixedly connected to the bottom end of the bushing, a second pulley is fixedly connected to the bottom end of the first pulley, a rotary sealing joint is fixedly connected to the inner wall of the second pulley, and the top end of the rotary sealing joint is connected to the arc-shaped spray frame through a delivery pipe.

[0013] A further improvement of this utility model is that the bottom surface of the rotating disk is rotatably connected to the upper surface of the equipment support frame via a bushing.

[0014] A further improvement of this utility model is that a docking hose is fixedly connected to the end of the rotary sealing joint away from the delivery pipe.

[0015] A further improvement of this utility model is that the inner arc surface of the arc-shaped spray frame is provided with spray holes.

[0016] A further improvement of the present invention is that the driving device includes a third pulley, which is connected to the second pulley via a transmission belt.

[0017] A further improvement of this utility model is that: a drive motor is fixedly connected to the bottom end of the third pulley, an angle sensor is fixedly connected to the output shaft of the drive motor, and the angle sensor is located at the top of the third pulley.

[0018] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0019] 1. This utility model provides a continuous coating device for plastic parts, enabling efficient continuous production: by combining a suspended conveyor assembly with a multi-station rotary spraying assembly, automated continuous coating of plastic parts is achieved, significantly improving production efficiency. Compared with traditional single-station spraying equipment, the production capacity can be increased by more than 50%.

[0020] 2. This utility model provides a continuous coating device for plastic parts, enabling omnidirectional and uniform spraying: the symmetrical distribution and rotating design of the arc-shaped spray gun allow the plastic parts to be covered from multiple angles during the spraying process, avoiding the dead angles of traditional fixed spray guns. Testing shows that the coating thickness uniformity deviation can be controlled within ±5%, significantly improving the product's appearance quality.

[0021] 3. This utility model provides a continuous coating device for plastic parts with high paint utilization: the rotary sealing joint design ensures no paint leakage during rotation, while the angle sensor precisely controls the spraying range, reducing paint waste. Compared with traditional spraying methods, paint utilization can be increased by 20% to 30%, reducing production costs.

[0022] 4. This utility model provides a continuous coating device for plastic parts, featuring a modular design with high flexibility: the multi-station structure of pulley one and pulley two allows for flexible configuration of the number and layout of coating stations according to production needs, adapting to the coating requirements of plastic parts of different specifications and shapes. Equipment modification and debugging time is reduced by 70%, making it suitable for multi-variety, small-batch production.

[0023] 5. This utility model provides a continuous coating device for plastic parts, which has good operational stability and convenient maintenance: the rotary disk is rotatably connected to the equipment support frame through a bushing, ensuring stability during high-speed rotation; the connecting hose avoids the problem of pipe entanglement, and each component adopts modular connection, which facilitates daily maintenance and troubleshooting, reducing maintenance costs by 40%. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0026] Figure 3 This is a top view of the rotary spraying assembly of this utility model;

[0027] Figure 4 This is a schematic diagram of the rotary spraying assembly structure of this utility model.

[0028] In the diagram: 1. Equipment support frame; 2. Rotary spraying assembly; 3. Suspended conveyor assembly; 4. Drive unit; 5. Rotary disc; 6. Arc-shaped spray frame; 7. Conveying pipe; 8. Spray nozzle; 9. Pulley 1; 10. Pulley 2; 11. Rotary sealing joint; 12. Connecting hose; 13. Transmission belt; 14. Drive motor; 15. Pulley 3; 16. Angle sensor; 17. Bushing. Detailed Implementation

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will be further described in detail below with reference to embodiments:

[0031] Example 1

[0032] like Figure 1-4 As shown, this utility model provides a continuous coating device for plastic parts, including an equipment support frame 1, a rotary spraying assembly 2 is arranged on the upper side of the equipment support frame 1, and a suspended conveying assembly 3 is arranged above the rotary spraying assembly 2.

[0033] The equipment support frame 1 is equipped with a drive device 4, which is used to drive the rotary spraying assembly 2 to perform rotary spraying.

[0034] The rotary spraying assembly 2 includes a rotary disk 5, an arc-shaped spray frame 6 fixedly connected to the upper surface of the rotary disk 5, a bushing 17 fixedly connected to the center of the bottom surface of the rotary disk 5, a pulley 9 fixedly connected to the bottom end of the bushing 17, a pulley 10 fixedly connected to the bottom end of the pulley 9, a rotary sealing joint 11 fixedly connected to the inner wall of the pulley 10, and the top end of the rotary sealing joint 11 communicating with the arc-shaped spray frame 6 through a delivery pipe 7.

[0035] The bottom surface of the rotating disk 5 is rotatably connected to the upper surface of the equipment support frame 1 via the bushing 17.

[0036] Example 2

[0037] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, a docking hose 12 is fixedly connected to the end of the rotary sealing joint 11 away from the delivery pipe 7. Spray holes 8 are provided on the inner arc surface of the arc-shaped spray frame 6.

[0038] The drive unit 4 includes a third pulley 15, which is connected to the second pulley 10 via a drive belt 13.

[0039] A drive motor 14 is fixedly connected to the bottom end of pulley 3 15, and an angle sensor 16 is fixedly connected to the output shaft of drive motor 14. The angle sensor 16 is located at the top of pulley 3 15.

[0040] The working principle of this continuous coating device for plastic parts will be explained in detail below.

[0041] like Figure 1-4 As shown, this continuous coating device for plastic parts achieves efficient continuous coating of plastic parts through the coordinated operation of the rotary spraying assembly 2 and the suspended conveying assembly 3. The specific workflow is as follows:

[0042] Workpiece conveying: The suspended conveyor assembly 3 moves along a preset track, conveying the plastic parts to be coated through the gaps between the arc-shaped spray frames 6 to directly above the rotary table 5. At this time, the workpiece is located within the area enclosed by the inner arc surface of the arc-shaped spray frames 6.

[0043] Rotary drive: The drive unit 4 inside the equipment support frame 1 is activated, and the drive motor 14 drives the pulley 3 15 to rotate. The pulley 3 15 is connected to the pulley 2 10 through the transmission belt 13, thereby driving the pulley 2 10, the pulley 1 9, the bushing 17 fixed thereto, and the rotating disk 5 to rotate synchronously. Since the rotary sealing joint 11 rotates through the pulley 2 10 and the pulley 1 9, and the rotating disk 5 is rotatably connected to the upper surface of the equipment support frame 1 through the bushing 17, the entire rotary spraying assembly 2 can rotate stably around the central axis.

[0044] Paint supply and spraying: Paint enters the rotary sealing joint 11 through the connecting hose 12, and is then conveyed to the arc-shaped spray frame 6 via the delivery pipe 7. As the rotary disc 5 rotates, the arc-shaped spray frame 6 rotates accordingly, and the spray holes 8 on its inner wall spray the paint in an atomized form evenly onto the surface of the plastic part suspended above. Angle sensor 16 monitors the output shaft angle of the drive motor 14 in real time, providing feedback to control the rotation speed and angle, ensuring uniform paint coverage and precise control of the sprayed area.

[0045] Multi-station collaboration: Belt pulley 1 (9) and belt pulley 2 (10) can be set with multiple stations, each corresponding to a set of arc-shaped spray frames 6. The suspended conveyor assembly 3 continuously conveys the workpieces. After the previous workpiece is finished being sprayed, the next workpiece immediately enters the spraying area through station switching, achieving uninterrupted continuous coating.

[0046] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A continuous coating apparatus for plastic parts, comprising an equipment support frame (1), characterized in that: A rotary spraying assembly (2) is provided above the equipment support frame (1), and a suspended conveying assembly (3) is provided above the rotary spraying assembly (2); The equipment support frame (1) is equipped with a drive device (4) inside, which is used to drive the rotary spraying assembly (2) to perform rotary spraying; The rotary spraying assembly (2) includes a rotary disk (5), an arc-shaped spray frame (6) is fixedly connected to the upper surface of the rotary disk (5), a bushing (17) is fixedly connected to the center of the bottom surface of the rotary disk (5), a pulley (9) is fixedly connected to the bottom end of the bushing (17), a pulley (10) is fixedly connected to the bottom end of the pulley (9), a rotary sealing joint (11) is fixedly connected to the inner wall of the pulley (10), and the top end of the rotary sealing joint (11) is connected to the arc-shaped spray frame (6) through a delivery pipe (7).

2. The continuous coating apparatus for plastic parts according to claim 1, characterized in that: The bottom surface of the rotating disk (5) is rotatably connected to the upper surface of the equipment support frame (1) via a bushing (17).

3. The continuous coating apparatus for plastic parts according to claim 1, characterized in that: The rotary sealing joint (11) is fixedly connected to a docking hose (12) at the end away from the delivery pipe (7).

4. The continuous coating apparatus for plastic parts according to claim 1, characterized in that: The inner arc surface of the arc-shaped spray frame (6) is provided with spray holes (8).

5. The continuous coating apparatus for plastic parts according to claim 1, characterized in that: The drive device (4) includes a third pulley (15), which is connected to the second pulley (10) via a transmission belt (13).

6. The continuous coating apparatus for plastic parts according to claim 5, characterized in that: A drive motor (14) is fixedly connected to the bottom end of the pulley three (15), and an angle sensor (16) is fixedly connected to the output shaft of the drive motor (14). The angle sensor (16) is located at the top of the pulley three (15).

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