Full-automatic electrophoresis line for automobile part production
By designing fully automatic electrophoretic lines, the problem of unstable automotive electrophoretic process results in the failure of parts to meet the salt spray test standards is solved, and process stability and production efficiency are improved.
Patent Information
- Application Number
- CN202411712525.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-02-28
AI Technical Summary
The existing automotive electrophoresis process is unstable, resulting in the electrophoresis of the automotive parts that cannot meet the salt spray test standards of the automobile factory.
A fully automatic electrophoresis line is designed, including an upper hanging part, a phosphating part, a water washing part, an electrophoresis part, an ultrafiltration part and a lower hanging part, and combined with a double-layer structure conveyor frame to form an automated electrophoresis process assembly line.
Through automated electrophoresis lines, the stability of the electrophoresis process is improved, ensuring that the auto parts meet the salt spray test standards of the automobile factory, reducing costs, improving production quality, and shortening the production cycle.
Smart Images
Figure CN119530930A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of automobile parts surface treatment, in particular to a full-automatic electrophoresis line for automobile parts production. Background Art
[0002] At present, the surface treatment processes for automobile chassis parts mainly include blackening, electroplating and electrophoresis. However, since blackening and electroplating treatments usually cannot meet the salt spray test standards specified by automobile factories, most of the automobile parts supplied to automobile factories are surface treated using the automotive electrophoresis process. Electrophoresis is divided into anodic electrophoresis and cathodic electrophoresis. The production cost of anodic electrophoresis is lower, but the surface quality of the parts after treatment is often poor. The workpiece of cathodic electrophoresis is the cathode, and no anodic dissolution occurs. The workpiece surface and the phosphating film are not damaged. The electrophoretic coating has a protective effect on the metal, and the paint used is high-priced and high-quality. Due to the instability of the automotive electrophoresis process, some automobile parts suppliers' electrophoretic automobile parts cannot meet the salt spray test standards of automobile factories.
[0003] Therefore, how to provide a fully automatic electrophoresis line for the production of automotive parts has become a technical problem to be solved by those skilled in the art. Summary of the invention
[0004] The purpose of the present invention is to provide a fully automatic electrophoresis line for automobile parts production, which can solve the problem in the prior art that the automobile electrophoresis process is unstable, resulting in the automobile parts after electrophoresis failing to meet the salt spray test standard requirements of the automobile factory.
[0005] To achieve the above-mentioned purpose, the present invention provides a fully automatic electrophoresis line for the production of automobile parts, comprising: an upper hanging part, a phosphating part is arranged above the upper hanging part, a water washing part is arranged on one side of the phosphating part, and an electrophoresis part is arranged on the other side of the water washing part, an ultrafiltration part is arranged on one side of the electrophoresis part, and a lower hanging part is arranged below the ultrafiltration part, and also includes a conveying frame, which is a double-layer structure, and is arranged in parallel between the upper hanging part, the phosphating part, the water washing part, the electrophoresis part, the ultrafiltration part and the lower hanging part, and is used for closed-loop uniform-speed conveying of automobile parts.
[0006] The upper hanging part, phosphating part, washing part, electrophoresis part, ultrafiltration part and lower hanging part form an assembly line for the electrophoresis process of automobile parts, and cooperate with the design of the double-layer structure conveyor frame to form an automated structure. This design can solve the problem in the prior art that the automobile electrophoresis process is unstable, resulting in the automobile parts that have undergone electrophoresis failing to meet the salt spray test standard requirements of the automobile factory. It can reduce costs, improve production quality, shorten production cycles, and thus achieve the purpose of lean production and improved production efficiency.
[0007] Preferably, the conveying rack is provided with a hook, and there is more than one hook.
[0008] The hook is an auxiliary component on the conveyor rack, which is used to hang the automobile parts blanks on the conveyor rack and then transport the automobile parts blanks through the conveyor rack. The number of hooks can be installed according to actual needs. This method is common knowledge in the field, so it will not be repeated.
[0009] Preferably, it also includes a wastewater treatment unit and a circulation pump.
[0010] The wastewater generated during the electrophoresis process enters the wastewater treatment unit through a pipeline for filtration and purification. The filtered and purified wastewater is sent to the corresponding location for reuse through a circulation pump, thereby achieving the function of water recycling, reflecting the practicality and environmental protection of the device.
[0011] Preferably, the wastewater treatment part is arranged on one side of the lower hanging part, and the wastewater treatment part is connected with the upper hanging part, the water washing part and the lower hanging part through a pipeline.
[0012] The waste water generated when the upper hanging part, the water washing part and the lower hanging part wash the automobile parts flows into the waste water treatment part through the preset pipeline for filtering and purification.
[0013] Preferably, the circulation pump is arranged on one side of the wastewater treatment part, with its input end connected to the wastewater treatment part via a pipeline, and its output end connected to the upper hanging part, the water washing part and the lower hanging part via a pipeline.
[0014] The circulation pump adopts the existing structure in the market in this field, and is used to pump the water treated in the wastewater treatment part into the corresponding upper hanging part, water washing part and lower hanging part.
[0015] Preferably, the method comprises the following steps:
[0016] S1: Install the blank to be processed on the hook on the conveyor frame at the upper hanging part, and start the conveyor frame to convey the blank;
[0017] S2: During transportation, the blank is washed with hot water before degreasing in the upper hanging part. After degreasing, the blank is washed with water twice;
[0018] S3: After washing, the surface is adjusted and the blank is transported to the phosphating section through the conveyor rack for phosphating process;
[0019] S4: After the phosphating process is completed, the blank is transported to the water washing section through the conveyor rack for three water washing processes;
[0020] S5: After the washing process is completed, the blank is transported to the electrophoresis section through the conveying rack for electrophoresis process;
[0021] S6: After the electrophoresis process is completed, the blank is transported to the ultrafiltration section through the transport rack for two ultrafiltration processes;
[0022] S7: After the ultrafiltration process is completed, the blank is transported to the lower hanging part through the conveying rack, and the blank is subjected to two water washing processes again in the lower hanging part. After washing, it is drained and baked. After baking and cooling, the blank is subjected to the final lower hanging process.
[0023] When in use, the conveyor frame is electrically connected to the control system in the workshop, so that the user can control the start and stop of the conveyor frame.
[0024] The hot water temperature for hot water washing before degreasing is 50-65℃.
[0025] The third step of the three-step water washing process in the water washing department is to use pure water for washing, which has the following functions:
[0026] Removal of impurity ions: After phosphating, some impurity ions will remain on the surface of the workpiece. If these ions enter the electrophoretic tank, they will have a negative impact on the quality of electrophoretic coating and the stability of the tank liquid. Therefore, pure water washing can effectively remove these impurity ions and ensure the quality and stability of electrophoretic coating.
[0027] Preventing paint film defects: If there are impurity ions remaining on the surface of the workpiece, various paint film defects such as orange peel, pinholes, etc. may be formed during the electrophoretic coating process. Pure water washing can reduce the formation of these defects and improve the flatness and uniformity of the paint film.
[0028] Improve the reliability of electrophoresis tank maintenance: Pure water washing can control the content of impurity ions, thereby reducing the difficulty and frequency of electrophoresis tank maintenance and extending the service life of the electrophoresis tank.
[0029] Ensure the quality of the phosphating film: After phosphating, a layer of phosphating film will be formed on the surface of the workpiece. Pure water washing can remove the soluble substances on the surface of the phosphating film, prevent the phosphating film from bubbling and falling off under hot and humid conditions, and improve the adhesion, corrosion resistance and durability of the coating.
[0030] Control conductivity: The conductivity of pure water used for electrophoretic coating should be controlled at ≤10μs / cm, while the conductivity of industrial water is generally around 200μs / cm. By washing with pure water, the conductivity can be controlled below 30μs / cm, ensuring the quality and stability of electrophoretic coating.
[0031] Pure water washing after phosphating plays a vital role in the electrophoretic coating process. It can effectively remove impurity ions, prevent paint film defects, improve the reliability of electrophoretic tank maintenance, and ensure the quality of the phosphating film and the effect of electrophoretic coating.
[0032] The main functions of the two ultrafiltration processes in electrophoresis include removing impurities, stabilizing the electrophoresis tank liquid, recycling electrophoretic paint and reducing environmental pollution.
[0033] The function of the first ultrafiltration process is:
[0034] Remove impurities: Remove small molecules and high molecular weight substances in the electrophoretic paint liquid through the screening effect of the ultrafiltration membrane to maintain the purity of the electrophoretic tank liquid.
[0035] Stabilize the electrophoresis tank liquid: The ultrafiltration process can remove impurity ions in the electrophoresis tank liquid and prevent the accumulation of impurity ions, thereby ensuring the stability of the electrophoresis tank liquid and the quality of the paint film.
[0036] Recycling of electrophoretic paint: Recycling the electrophoretic paint washed off the surface of the workpiece to avoid environmental pollution caused by the discharge of wastewater containing paint, while saving resources.
[0037] The function of the second ultrafiltration process is:
[0038] Further purification: Based on the first ultrafiltration, further remove residual impurities and small molecules to ensure the purity of the electrophoresis tank liquid.
[0039] Providing flushing water: The newly produced ultrafiltration water of the device provides flushing water for the workpieces leaving the electrophoresis tank, forming a closed-loop circulating water flushing system and reducing the use of deionized water.
[0040] Stabilize the electrophoresis tank liquid: By discharging part of the ultrafiltrate, various ions brought into the electrophoresis tank during the production process are removed to maintain the stability of the electrophoresis tank liquid and the quality of the paint film.
[0041] The beneficial effects of the present invention are:
[0042] 1. When the present invention is in use, the upper hanging part, the phosphating part, the washing part, the electrophoresis part, the ultrafiltration part and the lower hanging part form an assembly line for the electrophoresis process of automobile parts, and cooperate with the design of the double-layer structure conveyor frame to form an automated structure. Such a design can solve the problem in the prior art that the automobile electrophoresis process is unstable, resulting in the automobile parts after electrophoresis failing to meet the salt spray test standard requirements of the automobile factory, and can reduce costs, improve production quality, shorten production cycles, thereby achieving lean production and improving production efficiency, and thus is useful for promotion and use.
[0043] 2. When the present invention is in use, the wastewater generated during the electrophoresis process enters the wastewater treatment unit through a pipeline for filtration and purification, and the filtered and purified wastewater is sent to the corresponding position for reuse through a circulation pump, thereby achieving the function of water recycling, reflecting the practicality and environmental protection of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0045] Figure 1 It is a front view structural schematic diagram of the overall specific implementation mode of the present invention;
[0046] Figure 2 It is a process flow chart of a specific embodiment of the present invention.
[0047] Parts Name
[0048] 1. Upper hanging part; 2. Phosphating part; 3. Water washing part; 4. Electrophoresis part; 5. Ultrafiltration part; 6. Lower hanging part; 7. Conveying rack; 701, hook; 8. Wastewater treatment part; 9. Circulation pump. DETAILED DESCRIPTION
[0049] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, and preferably the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0050] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0051] See also Figure 1 to Figure 2The present invention provides a fully automatic electrophoresis line for automobile parts production, comprising: an upper hanging part 1, a phosphating part 2 is arranged above the upper hanging part 1, a water washing part 3 is arranged on one side of the phosphating part 2, and an electrophoresis part 4 is arranged on the other side of the water washing part 3, an ultrafiltration part 5 is arranged on one side of the electrophoresis part 4, and a lower hanging part 6 is arranged below the ultrafiltration part 5, and also includes a conveying frame 7, the conveying frame 7 is a double-layer structure, and is arranged in parallel between the upper hanging part 1, the phosphating part 2, the water washing part 3, the electrophoresis part 4, the ultrafiltration part 5 and the lower hanging part 6, and is used for closed-loop uniform speed conveying of automobile parts, and a hook 701 is arranged on the conveying frame 7, and there is more than one hook 701. Specific embodiment one:
[0053] In this embodiment:
[0054] S1: Mounting the blank to be processed on the hook 701 on the conveying frame 7 at the upper hanging part 1, and starting the conveying frame 7 to convey the blank;
[0055] S2: During transportation, the blank is subjected to a hot water washing process before degreasing in the upper hanging part 1, and two water washing processes are performed on the blank after degreasing;
[0056] S3: After the water washing is completed, the surface is adjusted and the blank is transported to the phosphating section 2 through the conveying rack 7 for the phosphating process;
[0057] S4: After the phosphating process is completed, the blank is transported to the washing section 3 through the conveying rack 7 for three washing processes;
[0058] S5: After the washing process is completed, the blank is transported to the electrophoresis part 4 through the transport rack 7 for electrophoresis process;
[0059] S6: After the electrophoresis process is completed, the blank is transported to the ultrafiltration section 5 through the transport rack 7 for two ultrafiltration processes;
[0060] S7: After the ultrafiltration process is completed, the blank is transported to the lower hanging part 6 through the conveying rack 7, and the blank is subjected to two water washing processes again in the lower hanging part 6. After washing, it is drained and baked. After baking and cooling, the blank is subjected to the final lower hanging process.
[0061] It also includes a wastewater treatment part 8 and a circulation pump 9. The wastewater treatment part 8 is arranged on one side of the lower hanging part 6, and the wastewater treatment part 8 is connected to the upper hanging part 1, the water washing part 3 and the lower hanging part 6 through a pipeline. The circulation pump 9 is arranged on one side of the wastewater treatment part 8, and its input end is connected to the wastewater treatment part 8 through a pipeline, and its output end is connected to the upper hanging part 1, the water washing part 3 and the lower hanging part 6 through a pipeline. Specific embodiment 2:
[0063] In this embodiment:
[0064] During the electrophoresis process of automobile parts blanks, the water generated in the upper hanging part 1, the water washing part 3 and the lower hanging part 6 enters the wastewater treatment part 8 through a preset pipeline, and the wastewater is filtered and purified by the wastewater treatment part 8, thereby achieving the purpose of filtering and purification. When used again, the circulation pump 9 is started, and the water is pumped into the corresponding position for use through the circulation pump 9, thereby achieving the purpose of water recycling, reflecting the practicality and environmental protection of the device.
[0065] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.
Claims
1. A fully automatic electrophoresis line for the production of automotive parts, comprising: An upper hanging part (1) is provided with a phosphating part (2) above the upper hanging part (1), a water washing part (3) is provided on one side of the phosphating part (2), an electrophoresis part (4) is provided on the other side of the water washing part (3), an ultrafiltration part (5) is provided on one side of the electrophoresis part (4), and a lower hanging part (6) is provided below the ultrafiltration part (5), characterized in that it also includes a conveying frame (7), the conveying frame (7) is a double-layer structure, and is arranged in parallel between the upper hanging part (1), the phosphating part (2), the water washing part (3), the electrophoresis part (4), the ultrafiltration part (5) and the lower hanging part (6), and is used for closed-loop uniform-speed conveying of automobile parts.
2. The fully automatic electrophoresis line for automobile parts production according to claim 1, characterized in that: The conveying frame (7) is provided with a hook (701), and more than one hook (701) is provided.
3. The fully automatic electrophoresis line for automobile parts production according to claim 1, characterized in that: It also includes a wastewater treatment unit (8) and a circulation pump (9).
4. The fully automatic electrophoresis line for automobile parts production according to claim 3, characterized in that: The wastewater treatment section (8) is arranged on one side of the lower hanging section (6), and the wastewater treatment section (8) is connected to the upper hanging section (1), the water washing section (3) and the lower hanging section (6) via pipelines.
5. The fully automatic electrophoresis line for automobile parts production according to claim 3, characterized in that: The circulation pump (9) is arranged on one side of the wastewater treatment section (8), with its input end connected to the wastewater treatment section (8) via a pipeline, and its output end connected to the upper hanging section (1), the water washing section (3) and the lower hanging section (6) via a pipeline.
6. The fully automatic electrophoresis line for automobile parts production according to claim 1, characterized in that: The following steps are involved: S1: Mounting the blank to be processed on the hook (701) on the conveying frame (7) at the upper hanging portion (1), and starting the conveying frame (7) to convey the blank; S2: During transportation, the blank is subjected to a hot water washing process before degreasing in the upper hanging part (1), and after degreasing, the blank is subjected to two water washing processes; S3: After the water washing is completed, the surface is adjusted and the blank is transported to the phosphating section (2) through the conveying rack (7) for the phosphating process; S4: After the phosphating process is completed, the blank is transported to the washing section (3) through the conveying rack (7) for three washing processes; S5: After the washing process is completed, the blank is transported to the electrophoresis section (4) through the transport rack (7) for electrophoresis; S6: After the electrophoresis process is completed, the blank is transported to the ultrafiltration section (5) through the transport rack (7) for two ultrafiltration processes; S7: After the ultrafiltration process is completed, the blank is transported to the lower hanging part (6) through the conveying rack (7), and the blank is subjected to two water washing processes again in the lower hanging part (6). After washing, it is drained and baked. After baking and cooling, the blank is subjected to the final lower hanging process.