Workpiece surface pretreatment device for vacuum coating

By combining ultrasonic cleaning and a spray system, the surface of the workpiece is cleaned in all directions, solving the problems of time-consuming and uneven traditional pretreatment methods, and improving the coating quality and efficiency.

CN224087418UActive Publication Date: 2026-04-07JIANGXI MINGTAI PRECISION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-26
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Traditional workpiece pretreatment methods are time-consuming and difficult to ensure uniform cleaning, especially for complex shapes or a large number of workpieces, resulting in uneven coating quality and poor adhesion.

Method used

Combining ultrasonic cleaning with a spray system consisting of a pressure pump and a water spray pipe, a rotating motor drives the hanger to rotate, and the system uses ultrasonic waves and water spray to perform all-around cleaning, ensuring deep cleaning of the workpiece surface.

Benefits of technology

It improves cleaning efficiency, ensures the uniformity and adhesion of the coating layer, enhances product performance and lifespan, and reduces workload.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a workpiece surface pretreatment device for vacuum coating, which comprises a cleaning pool, an ultrasonic generator is arranged in the cleaning pool, a hanger base is arranged in the cleaning pool, a load-bearing seat is mounted in the cleaning pool, a connecting bearing is mounted between the load-bearing seat and the hanger base, and the connecting bearing is connected with the hanger base. According to the workpiece surface pretreatment device for vacuum coating, ultrasonic cleaning and a spraying system composed of the pressure pump and the water spraying pipe are combined, deep cleaning of the surface of a workpiece is guaranteed, especially for areas which are difficult to touch, the workpiece surface pretreatment device is simple in structure and convenient to operate, and the workpiece surface pretreatment device is suitable for large-scale popularization and application. And the rotating motor at the bottom of the cleaning pool is in transmission connection with the hanging frame base, so that the workpiece can rotate in the cleaning process, all-directional cleaning is realized, the cleaning efficiency is improved, and the performance and the service life of a final product are improved by improving the pretreatment quality and ensuring the uniformity and the adhesive force of a coating layer.
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Description

Technical Field

[0001] This utility model relates to the field of vacuum coating technology, specifically a workpiece surface pretreatment device for vacuum coating. Background Technology

[0002] Vacuum coating is an important aspect of vacuum applications. Based on vacuum technology, it utilizes physical or chemical methods and incorporates a range of new technologies such as electron beams, molecular beams, ion beams, plasma beams, radio frequency, and magnetron sputtering to provide a new process for thin film preparation for scientific research and practical production. Simply put, vacuum coating is the method of evaporating or sputtering metals, alloys, or compounds in a vacuum, causing them to solidify and deposit on a substrate (or base material).

[0003] The cleanliness of the workpiece surface is crucial to the coating quality in vacuum coating. Traditional workpiece pretreatment methods often rely on manual cleaning or simple mechanical spraying systems, which have the following shortcomings:

[0004] Manual cleaning is not only time-consuming but also makes it difficult to ensure uniform cleaning of each workpiece surface, especially when dealing with complex shapes or large quantities of workpieces, where efficiency becomes a significant issue. Simple spray devices may not be able to remove stubborn stains or tiny particles from the workpiece surface. These residues may cause uneven film layers and poor adhesion during the coating process, and the racks need to be cleaned after each coating, making the coating process time-consuming. Utility Model Content

[0005] To address the shortcomings mentioned in the background art, the purpose of this utility model is to provide a workpiece surface pretreatment device for vacuum coating. By combining ultrasonic cleaning with a spray system consisting of a pressure pump and a water spray pipe, it ensures deep cleaning of the workpiece surface, especially for hard-to-reach areas. The drive connection between the rotating motor at the bottom of the cleaning tank and the hanging base allows the workpiece to rotate during the cleaning process, achieving all-round cleaning and improving cleaning efficiency. By improving the quality of pretreatment, it ensures the uniformity and adhesion of the coating layer, thereby improving the performance and lifespan of the final product.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A workpiece surface pretreatment device for vacuum coating includes a cleaning tank, an ultrasonic generator installed inside the cleaning tank, a hanging base installed inside the cleaning tank, a load-bearing seat installed inside the cleaning tank, a connecting bearing installed between the load-bearing seat and the hanging base, a swing arm rotatably mounted on the top of the cleaning tank, a hanging top rod mounted on the swing arm, a drain outlet installed at the bottom of the cleaning tank, and an adaptive component installed between the swing arm and the hanging top rod.

[0008] More preferably, the adaptive component includes a balance bar and a vertical bar, the vertical bar is fixedly installed on the top of the cleaning tank, the balance bar and the vertical bar are rotatably connected, the swing arm and the vertical bar are rotatably connected, and a vertical cylinder is rotatably connected between the end of the balance bar and the swing arm away from the vertical bar, and the hanger top rod passes through the vertical cylinder.

[0009] More preferably, the swing arm and the balance bar are arranged parallel to each other, and the vertical rod and the vertical cylinder are arranged parallel to each other.

[0010] More preferably, an upper baffle is fixedly connected to the top end of the hanger top rod, a lower baffle is fixedly connected to the bottom position of the hanger top rod, a spring is sleeved on the hanger top rod, the spring is located between the lower baffle and the vertical cylinder, and the upper baffle is located above the vertical cylinder.

[0011] More preferably, a water storage tank is fixedly connected to one side of the cleaning pool, and a booster pump is fixedly installed on the water storage tank. The output end of the booster pump is connected to the water storage tank, and the water supply end of the booster pump is connected to an external water source. A spray pipe is fixedly connected to one end of the water storage tank. One end of the spray pipe passes through the cleaning pool and extends into the interior of the cleaning pool. Several nozzles are provided on the spray pipe.

[0012] More preferably, a rotary motor is installed at the bottom of the cleaning tank, the output end of the rotary motor passes through the cleaning tank and extends into the interior of the cleaning tank, and the output end of the rotary motor is connected to the hanging bracket base for transmission.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model combines ultrasonic cleaning with a spray system consisting of a pressure pump and a water spray pipe to ensure deep cleaning of the workpiece surface. Especially for hard-to-reach areas, the drive connection between the rotating motor at the bottom of the cleaning tank and the hanging base allows the workpiece to rotate during the cleaning process, achieving all-round cleaning and improving cleaning efficiency. By improving the quality of pretreatment, the uniformity and adhesion of the coating layer are ensured, thereby improving the performance and life of the final product.

[0015] 2. This utility model cleans both the workpiece and the hanger simultaneously, which reduces the workload and greatly improves the surface treatment efficiency compared to cleaning the workpiece and the hanger separately. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the hanging bracket base structure in this utility model;

[0019] Figure 3 This is a cross-sectional view of the cleaning tank structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the swing arm structure in this utility model.

[0021] In the picture:

[0022] 1. Cleaning tank; 2. Ultrasonic generator; 3. Hanger base; 4. Load-bearing seat; 5. Connecting bearing; 6. Swing arm; 7. Hanger top rod; 8. Drain outlet; 9. Balance bar; 10. Vertical bar; 11. Vertical cylinder; 12. Upper baffle; 13. Lower baffle; 14. Spring; 15. Water storage tank; 16. Pressure pump; 17. Spray pipe; 18. Spray head; 19. Rotary motor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] like Figure 1-4 As shown, a workpiece surface pretreatment device for vacuum coating includes a cleaning tank 1. An ultrasonic generator 2 is installed inside the cleaning tank 1 to generate ultrasonic waves that penetrate into the tiny crevices of the workpiece surface to remove stubborn stains and grease. A hanging bracket base 3 is installed inside the cleaning tank 1, and a load-bearing seat 4 is installed inside the cleaning tank 1. A connecting bearing 5 is installed between the load-bearing seat 4 and the hanging bracket base 3. A swing arm 6 is rotatably mounted on the top of the cleaning tank 1, and a hanging bracket top rod 7 is mounted on the swing arm 6. A drain outlet 8 is provided at the bottom of the cleaning tank 1 for draining wastewater. An adaptive component is provided between the swing arm 6 and the hanging bracket top rod 7.

[0026] The adaptive component includes a balance bar 9 and a vertical bar 10. The vertical bar 10 is fixedly installed on the top of the cleaning tank 1. The balance bar 9 and the vertical bar 10 are rotatably connected. The swing arm 6 is rotatably connected to the vertical bar 10. A vertical cylinder 11 is rotatably connected between the end of the balance bar 9 and the swing arm 6 away from the vertical bar 10. The hanger top rod 7 passes through the vertical cylinder 11.

[0027] The swing arm 6 and the balance bar 9 are arranged parallel to each other, and the vertical bar 10 and the vertical cylinder 11 are arranged parallel to each other, forming a parallelogram structure, so as to keep the vertical cylinder 11 and the hanging bracket top bar 7 always in a vertical state.

[0028] The top of the bracket top rod 7 is fixedly connected to an upper baffle 12, and the bottom of the bracket top rod 7 is fixedly connected to a lower baffle 13. A spring 14 is sleeved on the bracket top rod 7. The spring 14 is located between the lower baffle 13 and the vertical cylinder 11, and the upper baffle 12 is located above the vertical cylinder 11.

[0029] A water storage tank 15 is fixedly connected to one side of the cleaning tank 1. A booster pump 16 is fixedly installed on the water storage tank 15. The output end of the booster pump 16 is connected to the water storage tank 15, and the water supply end of the booster pump 16 is connected to an external water source. A water spray pipe 17 is fixedly connected to one end of the water storage tank 15. One end of the water spray pipe 17 passes through the cleaning tank 1 and extends into the interior of the cleaning tank 1. Several nozzles 18 are provided on the water spray pipe 17 for spraying pressurized water into the interior of the cleaning tank 1 to further remove residues from the surface of the workpiece.

[0030] A rotary motor 19 is installed at the bottom of the cleaning tank 1. The output end of the rotary motor 19 passes through the cleaning tank 1 and extends into the interior of the cleaning tank 1. The output end of the rotary motor 19 is connected to the hanging bracket base 3 for transmission, which is used to drive the hanging bracket and the workpiece to rotate, so as to achieve all-round cleaning without dead angles.

[0031] Working principle:

[0032] Using this device, the workpieces to be coated are fixed on a specially designed hanger, ensuring that each workpiece can be safely and stably supported by the hanger. At this time, the hanger is a hanger that has been taken out of the coating machine and has not yet been cleaned. Then, the bottom end of the hanger is inserted into the hanger base, and then the swing arm 6 is rotated to put the hanger top rod 7 on the top of the hanger. Since the swing arm 6 and the balance bar 9 are set parallel to each other, and the vertical bar 10 and the vertical cylinder 11 are set parallel to each other, the swing arm 6, the balance bar 9, the vertical bar 10 and the vertical cylinder 11 form a parallelogram structure, thereby keeping the vertical cylinder 11 and the hanger top rod 7 in a vertical state at all times, making it easy for the hanger top rod 7 to be put into the top of the hanger. And through the spring 14, it can automatically adapt to hangers of different heights.

[0033] After placing the rack and workpiece into the cleaning tank 1, the ultrasonic cleaning process is activated. The ultrasonic waves create a cavitation effect in the water, penetrating deep into the tiny crevices of the workpiece surface to remove stubborn stains and grease. After ultrasonic cleaning, the wastewater is drained, and then the pressure pump 16 is activated. Pressurized water from the water tank 15 flows through the spray pipe 17, and the nozzle 18 sprays water into the cleaning tank 1 at a set pressure and angle to further remove residues from the workpiece surface, ensuring that there are no obvious particles or stains on the surface. If necessary, the cleaning solution is filtered and recycled to achieve efficient resource utilization.

[0034] During the cleaning process, the rotary motor 19 at the bottom of the cleaning tank 1 starts to work, driving the hanging base 3 to rotate, so that the workpiece receives uniform spray and ultrasonic cleaning in a 360-degree range, ensuring all-round cleaning without dead angles.

[0035] Remove the hanger and workpiece for subsequent coating treatment.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A workpiece surface pretreatment apparatus for vacuum coating, characterized in that, The system includes a cleaning tank (1), an ultrasonic generator (2) is installed inside the cleaning tank (1), a hanging bracket base (3) is installed inside the cleaning tank (1), a load-bearing seat (4) is installed inside the cleaning tank (1), a connecting bearing (5) is installed between the load-bearing seat (4) and the hanging bracket base (3), a swing arm (6) is rotatably installed on the top of the cleaning tank (1), a hanging bracket top rod (7) is installed on the swing arm (6), a drain outlet (8) is installed at the bottom of the cleaning tank (1), and an adaptive component is installed between the swing arm (6) and the hanging bracket top rod (7).

2. The workpiece surface pretreatment apparatus for vacuum coating according to claim 1, characterized in that, The adaptive component includes a balance bar (9) and a vertical bar (10). The vertical bar (10) is fixedly installed on the top of the cleaning tank (1). The balance bar (9) and the vertical bar (10) are rotatably connected. The swing arm (6) is rotatably connected to the vertical bar (10). A vertical cylinder (11) is rotatably connected between the balance bar (9) and the end of the swing arm (6) away from the vertical bar (10). The hanger top rod (7) passes through the vertical cylinder (11).

3. The workpiece surface pretreatment apparatus for vacuum coating according to claim 2, characterized in that, The swing arm (6) and the balance bar (9) are arranged parallel to each other, and the vertical bar (10) and the vertical cylinder (11) are arranged parallel to each other.

4. The workpiece surface pretreatment apparatus for vacuum coating according to claim 3, characterized in that, The top of the bracket top rod (7) is fixedly connected to an upper baffle (12), and the bottom of the bracket top rod (7) is fixedly connected to a lower baffle (13). A spring (14) is sleeved on the bracket top rod (7). The spring (14) is located between the lower baffle (13) and the vertical cylinder (11), and the upper baffle (12) is located above the vertical cylinder (11).

5. The workpiece surface pretreatment apparatus for vacuum coating according to claim 4, characterized in that, A water storage tank (15) is fixedly connected to one side of the cleaning pool (1). A booster pump (16) is fixedly installed on the water storage tank (15). The output end of the booster pump (16) is connected to the water storage tank (15). The water supply end of the booster pump (16) is connected to an external water source. A water spray pipe (17) is fixedly connected to one end of the water storage tank (15). One end of the water spray pipe (17) passes through the cleaning pool (1) and extends into the interior of the cleaning pool (1). Several nozzles (18) are provided on the water spray pipe (17).

6. The workpiece surface pretreatment apparatus for vacuum coating according to claim 5, characterized in that, A rotary motor (19) is installed at the bottom of the cleaning tank (1). The output end of the rotary motor (19) passes through the cleaning tank (1) and extends into the interior of the cleaning tank (1). The output end of the rotary motor (19) is connected to the hanging base (3) for transmission.