Electrophoresis surface treatment device for zinc alloy door handle

By designing an automated electrophoretic surface treatment device for zinc alloy door handles, which utilizes motor-driven inner and outer cleaning cylinders and brushes for automatic cleaning, the problem of low efficiency in manual scrubbing has been solved, achieving high-efficiency cleaning results and batch operation.

CN223837602UActive Publication Date: 2026-01-27SUZHOU DIANBO METAL PRODUCTS CO LTD
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Patent Information

Application Number
CN202520098899.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2026-01-27
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

The existing zinc alloy door handles require manual washing during the electrophoretic surface treatment process, which results in a large workload, low efficiency, and is not suitable for batch operation.

Method used

An electrophoretic surface treatment device for zinc alloy door handles was designed, which includes a cleaning mechanism that uses motor-driven inner and outer cleaning cylinders and brushes for automatic cleaning, combined with a spray and drainage system to achieve automated cleaning.

Benefits of technology

It improves cleaning efficiency and effectiveness, is suitable for batch operations, and reduces the intensity of manual labor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a zinc alloy door handle electrophoresis surface treatment device which comprises a cleaning mechanism, the cleaning mechanism is composed of an outer cleaning cylinder, an inner cleaning cylinder, a containing groove, a drainage hole and a brush, the outer cleaning cylinder and the inner cleaning cylinder are coaxially arranged, the diameter of the inner cleaning cylinder is smaller than that of the outer cleaning cylinder, the containing groove is arranged in the space between the inner cleaning cylinder and the outer cleaning cylinder, and the drainage hole is arranged in the containing groove. The electrophoresis surface treatment device for the zinc alloy door handle comprises an outer cleaning cylinder and an inner cleaning cylinder, a containing groove is formed in the outer cleaning cylinder, a door handle to be cleaned is placed in the containing groove, installation openings are formed in the wall face of the outer cleaning cylinder and the wall face of the inner cleaning cylinder in an annular array mode, and brushes are installed in the installation openings. When the door handle is cleaned by a cleaning agent, a plurality of surfaces of the door handle can be cleaned meticulously only in a manual scrubbing manner, but the workload of manual scrubbing is large, the working efficiency is low, batch operation is not facilitated, and actual use is not facilitated.
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Description

Technical Field

[0001] This utility model relates to the technical field of door handle processing equipment, and in particular to an electrophoretic surface treatment device for zinc alloy door handles. Background Technology

[0002] The electrophoretic surface treatment process for zinc alloy door handles mainly involves the following steps: First, the zinc alloy door handle is mechanically polished to remove burrs and impurities, improving surface smoothness. Then, it is cleaned with alkaline detergents or organic solvents to remove grease, dust, and other impurities. Strong acids such as hydrochloric acid are used to remove the oxide layer, ensuring the effectiveness of subsequent treatments. For oxides such as rust, chemical or electrolytic rust removal methods are used to ensure the surface is free of impurities. The handle is then washed again with water or water with added cleaning agents to thoroughly remove waste liquid and impurities from the previous steps. Next, the workpiece is immersed in an electrophoresis tank, where voltage is applied to deposit charged particles onto the workpiece surface, forming a uniform coating. The workpiece is then rinsed multiple times with pure water to remove any residual chemicals from the electrophoresis process. Finally, the workpiece is placed in an oven, typically at 60-90℃ for 20-40 minutes, to ensure complete curing of the coating. In summary, the electrophoretic surface treatment process for zinc alloy door handles includes three main stages: pretreatment, electrophoretic coating, and post-treatment. These steps work together to ensure that zinc alloy door handles have good corrosion resistance and aesthetics, especially the cleaning before electrophoretic surface treatment, which is particularly important.

[0003] Due to the structural characteristics of door handles, they need to be manually scrubbed when using cleaning agents to thoroughly clean them. However, manual scrubbing is labor-intensive, inefficient, and not suitable for batch operations or practical use.

[0004] Therefore, it is necessary to provide an electrophoretic surface treatment device for zinc alloy door handles to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a zinc alloy door handle electrophoretic surface treatment device. Due to the structural characteristics of the existing door handle, manual scrubbing is required when cleaning with cleaning agents to thoroughly clean multiple surfaces of the door handle. However, manual scrubbing is labor-intensive, inefficient, and not conducive to batch operation or practical use.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An electrophoretic surface treatment device for zinc alloy door handles includes: a cleaning mechanism;

[0008] The cleaning mechanism consists of an outer cleaning cylinder, an inner cleaning cylinder, a placement trough, a drain hole, and a brush. The outer cleaning cylinder and the inner cleaning cylinder are coaxially arranged, and the diameter of the inner cleaning cylinder is smaller than that of the outer cleaning cylinder. The gap between the two is the placement trough, in which the door handle to be cleaned is placed. The outer cleaning cylinder and the inner cleaning cylinder have mounting openings arranged in a ring on their walls, and each mounting opening is fitted with a brush. The bottom surface of the outer cleaning cylinder has a drain hole.

[0009] In one embodiment, the cleaning mechanism further includes: a housing, a support frame, a base plate, and a drain pipe. The outer and inner cleaning cylinders are both disposed inside the housing. The top surface of the housing is open. Support frames are installed on both sides of the housing. A base plate communicating with the bottom of the housing is installed. The base plate is in the shape of an inverted frustum. The width of the top surface of the base plate is greater than the width of the bottom wall of the housing. The bottom of the outer cleaning cylinder abuts against the top surface of the base plate. A drain pipe is installed at the bottom of the base plate.

[0010] In one embodiment, a top cover is installed above the top surface of the housing, and fixing rods are installed on both sides of the bottom of the top cover. The bottom of the fixing rods is supported on the top surface of the housing. A motor is installed on the top surface of the top cover, and the motor is connected to a rotating shaft below. The bottom of the rotating shaft is installed and connected to the inner bottom surface of the inner cleaning drum.

[0011] In one embodiment, a diversion box is installed on the top surface of the top cover. The diversion box is an overall annular structure, and its bottom surface has a drain pipe arranged in a circular array. The bottom of the drain pipe is positioned directly above the placement slot. An inlet pipe is installed on the top left side of the diversion box. The inlet pipe passes through the top cover and extends to the top of the top cover. The inlet pipe is connected to an external liquid supply pipeline.

[0012] In one embodiment, a placement box is installed at intervals on the right side of the cleaning mechanism, and a placement plate is installed inside the placement box. The placement plate has a porous structure, and an electrophoresis treatment box is installed on the right side of the placement box.

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

[0014] (1) This utility model drives the rotating shaft to rotate by starting the motor, which in turn drives the inner cleaning cylinder to rotate, so that the brush can brush the workpiece in the placement tank. At the same time, the brush of the outer cleaning cylinder passively contacts the workpiece, improving the cleaning efficiency and cleaning effect of the workpiece. The cleaning liquid is pumped to the inlet pipe through the external pipeline. After the cleaning liquid enters the distribution box, as the amount of cleaning liquid increases, multiple drain pipes discharge the cleaning liquid into the placement tank, spraying the workpiece. The sprayed liquid flows into the bottom plate and is discharged through the drain pipe.

[0015] (2) This utility model involves placing the cleaned workpiece into a placement plate for drip drainage, removing excess liquid from the workpiece by manual wiping or blowing air, and then placing the workpiece into an electrophoresis treatment tank for processing. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present utility model;

[0017] Figure 2 Here are detailed drawings of the cleaning mechanism of this utility model;

[0018] Figure 3 This is a detailed drawing of the top cover of this utility model;

[0019] Figure 4 This is a detailed drawing of the cleaning bucket of this utility model.

[0020] The corresponding names of the attached figures are: electrophoresis treatment box 1, cleaning mechanism 2, box body 21, support 22, bottom plate 23, drain pipe 24, outer cleaning cylinder 25, inner cleaning cylinder 26, placement tank 27, drain hole 28, brush 29, top cover 3, fixing rod 31, motor 32, rotating shaft 33, diversion box 34, liquid inlet pipe 35, liquid outlet pipe 36, placement box 4, placement plate 41. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0022] like Figures 1-2 As shown, the present invention provides an electrophoretic surface treatment device for zinc alloy door handles, comprising: a cleaning mechanism 2;

[0023] like Figure 1 , Figure 2 , Figure 4 As shown, the cleaning mechanism 2 consists of an outer cleaning cylinder 25, an inner cleaning cylinder 26, a placement groove 27, a drain hole 28, and a brush 29. The outer cleaning cylinder 25 and the inner cleaning cylinder 26 are coaxially arranged, and the diameter of the inner cleaning cylinder 26 is smaller than the diameter of the outer cleaning cylinder 25. The gap between them is the placement groove 27, in which the door handle to be cleaned is placed. The outer cleaning cylinder 25 and the inner cleaning cylinder 26 have mounting openings arranged in a ring array on their walls, and each mounting opening is fitted with a brush 29. The bottom surface of the outer cleaning cylinder 25 has a drain hole 28.

[0024] Preferably, in one embodiment, such as Figures 1-2As shown, the cleaning mechanism 2 further includes: a housing 21, a support 22, a base plate 23, and a drain pipe 24. The outer cleaning cylinder 25 and the inner cleaning cylinder 26 are both installed inside the housing 21. The top surface of the housing 21 is open. Supports 22 are installed on both sides of the housing 21. The bottom of the housing 21 is connected to the base plate 23. The base plate 23 is in the shape of an inverted frustum. The width of the top surface of the base plate 23 is greater than the width of the bottom wall of the housing 21. The bottom of the outer cleaning cylinder 25 abuts against the top surface of the base plate 23. The drain pipe 24 is installed at the bottom of the base plate 23.

[0025] Preferably, in one embodiment, such as Figure 3 As shown, a top cover 3 is installed on the top surface of the housing 21. Fixing rods 31 are installed on both sides of the bottom of the top cover 3. The bottom of the fixing rods 31 is supported on the top surface of the housing 21. A motor 32 is installed on the top surface of the top cover 3. The motor 32 is connected to the rotating shaft 33 below. The bottom of the rotating shaft 33 is installed and connected to the inner bottom surface of the inner cleaning cylinder 26. During operation, the motor 32 is started to drive the rotating shaft 33 to rotate, which in turn drives the inner cleaning cylinder 26 to rotate. This causes the brush 29 to brush the workpiece in the placement groove 27, and simultaneously causes the brush of the outer cleaning cylinder 25 to passively contact the workpiece, thereby improving the cleaning efficiency and cleaning effect of the workpiece.

[0026] Preferably, in one embodiment, such as Figure 3 As shown, a distribution box 34 is installed on the top surface of the top cover 3. The distribution box 34 is an overall ring structure, and the bottom surface of the distribution box 34 is arranged in a ring array with drain pipes 36. The bottom of the drain pipes 36 is positioned above the placement tank 27. An inlet pipe 35 is installed on the top left side of the distribution box 34. The inlet pipe 35 passes through the top cover 3 and extends to the top of the top cover 3. The inlet pipe 35 is connected to an external liquid supply pipeline. During operation, the cleaning fluid is pumped into the inlet pipe 35 through the external pipeline. After the cleaning fluid enters the distribution box 34, as the amount of cleaning fluid supplied increases, multiple drain pipes 36 discharge the cleaning fluid into the placement tank 27 to spray the workpiece. The sprayed liquid flows into the bottom plate 23 and is discharged through the drain pipe 24.

[0027] Preferably, in one embodiment, such as Figure 1 As shown, a placement box 4 is installed at intervals on the right side of the cleaning mechanism 2. A placement plate 41 is installed inside the placement box 4. The placement plate 41 has a porous structure. An electrophoresis treatment box 1 is installed on the right side of the placement box 4. During operation, the cleaned workpiece is placed in the placement plate 41 for drip drainage. Excess liquid in the workpiece is removed by manual wiping or blowing air. Then, the workpiece is put into the electrophoresis treatment box 1 for processing.

[0028] Working principle of this utility model:

[0029] During operation, the motor 32 drives the rotating shaft 33 to rotate, which in turn drives the inner cleaning cylinder 26 to rotate. This causes the brush 29 to brush the workpiece in the placement tank 27, while the brush of the outer cleaning cylinder 25 passively contacts the workpiece, improving the cleaning efficiency and effect. The cleaning fluid is pumped to the inlet pipe 35 through an external pipeline. After the cleaning fluid enters the distribution box 34, as the flow rate of the cleaning fluid increases, multiple drain pipes 36 discharge the cleaning fluid into the placement tank 27 to spray the workpiece. The sprayed liquid flows into the bottom plate 23 and is discharged through the drain pipe 24.

[0030] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

Claims

1. A zinc alloy door handle electrophoretic surface treatment device, characterized in that, include: Cleaning facilities; The cleaning mechanism consists of an outer cleaning cylinder, an inner cleaning cylinder, a placement trough, a drain hole, and a brush. The outer cleaning cylinder and the inner cleaning cylinder are coaxially arranged, and the diameter of the inner cleaning cylinder is smaller than that of the outer cleaning cylinder. The gap between the two is the placement trough, in which the door handle to be cleaned is placed. The outer cleaning cylinder and the inner cleaning cylinder have mounting openings arranged in a ring on their walls, and each mounting opening is fitted with a brush. The bottom surface of the outer cleaning cylinder has a drain hole.

2. The electrophoretic surface treatment device for zinc alloy door handles according to claim 1, characterized in that, The cleaning mechanism further includes: a housing, a support frame, a base plate, and a drain pipe. The outer and inner cleaning cylinders are both located inside the housing. The top surface of the housing is open. Support frames are installed on both sides of the housing. A base plate is installed at the bottom of the housing and communicates with it. The base plate is in the shape of an inverted frustum. The width of the top surface of the base plate is greater than the width of the bottom wall of the housing. The bottom of the outer cleaning cylinder abuts against the top surface of the base plate. A drain pipe is installed at the bottom of the base plate.

3. The zinc alloy door handle electrophoretic surface treatment device according to claim 2, characterized in that, A top cover is installed on the top surface of the box body. Fixing rods are installed on both sides of the bottom of the top cover. The bottom of the fixing rods is supported on the top surface of the box body. A motor is installed on the top surface of the top cover. The motor is connected to the rotating shaft below. The bottom of the rotating shaft is installed and connected to the inner bottom surface of the inner cleaning drum.

4. The zinc alloy door handle electrophoretic surface treatment device according to claim 3, characterized in that, A diversion box is installed on the top surface of the top cover. The diversion box is a ring structure with drain pipes arranged in a ring array on its bottom surface. The bottom of the drain pipes is positioned directly above the placement slot. An inlet pipe is installed on the top left side of the diversion box. The inlet pipe passes through the top cover and extends to the top of the top cover. The inlet pipe is connected to an external liquid supply pipeline.

5. The zinc alloy door handle electrophoretic surface treatment device according to claim 2, characterized in that, A placement box is installed at intervals on the right side of the cleaning mechanism. A placement plate is installed inside the placement box. The placement plate has a porous structure. An electrophoresis treatment box is installed on the right side of the placement box.