Anti-settling circulating device for automobile part electrophoresis tank

Abstract

This utility model relates to the technical field of electrophoretic coating equipment, and in particular to an anti-settling circulation device for an electrophoretic coating tank of automotive parts. It includes an electrophoretic tank with an inclined bottom wall and two sets of storage frames. The storage frames are movable and liftable. Multiple spray pipes are fixedly installed between the bottom wall of the electrophoretic tank and the bottom of the storage frames. These spray pipes are interconnected and arranged horizontally, with their spray holes facing the bottom wall of the electrophoretic tank. This anti-settling circulation device for an electrophoretic coating tank of automotive parts allows the storage frames to be lifted out of the electrophoretic tank after coating is completed. After excess coating on the parts drips back into the tank, the coated parts can be removed, completing the entire electrophoretic coating process. In summary, this device enables convenient handling of automotive parts, improves operational efficiency, and is suitable for large-scale electrophoretic coating production of automotive parts.

Description

Technical Field

[0001] This utility model relates to the technical field of electrophoretic coating equipment, and in particular to an anti-settling circulation device for an electrophoretic tank for automotive parts. Background Technology

[0002] In the production of electrophoretic coating for automotive parts, the electrophoretic tank is a core process equipment. The stability of the coating inside the tank directly affects the coating quality and production efficiency. Electrophoretic coatings are composed of resins, pigments and additives with high solid content. When left to stand for a long time or when the temperature changes, solid particles are prone to settling, resulting in uneven tank concentration, coating thickness fluctuations, and even surface defects.

[0003] In the large-scale electrophoretic coating production of automotive parts, traditional equipment typically uses manual hoists to lift and lower the parts. The manual hoist pulls the storage frame with a wire rope or chain, relying on manual control of the lifting speed and balance. During operation, uneven operating force, environmental interference (such as wind and equipment vibration), or differences in human experience can easily cause the storage frame to shake significantly. This shaking not only increases the risk of parts colliding with the inner wall of the electrophoresis tank, causing damage to the surface of the parts or coating defects, but also makes it difficult for operators to accurately control the lowering or raising position of the storage frame. Especially in large-scale production scenarios, where a large number of parts need to be loaded and unloaded frequently per unit time, the inefficiency and instability of manual operation seriously restrict the production cycle, resulting in low operating efficiency and difficulty in meeting high production capacity requirements.

[0004] Therefore, to address the issue of inconvenience in improving operational efficiency when used in large-scale electrophoretic coating production scenarios, a sedimentation prevention and circulation device for automotive parts electrophoretic tanks can be designed. When using this electrophoretic coating device, firstly, the automotive parts to be coated are placed in two sets of storage frames to complete material loading. Then, the storage frames are smoothly lowered into the inner cavity of the electrophoretic tank, where the parts are completely immersed in the electrophoretic coating. Electrophoretic deposition and coating are completed under the action of an electric field. During the coating process, to prevent sedimentation of the electrophoretic coating due to prolonged static placement, a circulation mechanism is activated to extract the coating from the electrophoretic tank, pressurize it, and transport it to the horizontally arranged... In the multiple spray pipes, the spray holes face the bottom wall of the electrophoresis tank. High-pressure paint is sprayed out from the spray holes, forming a scouring flow on the bottom of the tank. This breaks the static state of the paint and prevents pigment sedimentation. On the other hand, it promotes liquid circulation in the tank, making the paint concentration uniform and improving the coating quality. After the coating is completed, the storage frame is lifted out of the electrophoresis tank. After the excess paint on the surface of the parts drips back into the tank, the coated parts can be taken out, completing the entire electrophoretic coating process. In summary, this device can facilitate the handling of automotive parts, improve operational efficiency, and is suitable for large-scale electrophoretic coating production of automotive parts. Utility Model Content

[0005] To overcome the problem that traditional electrophoretic coating equipment typically uses manual hoists to lift and lower parts, which easily causes significant shaking during operation, increasing the risk of parts colliding with the inner wall of the electrophoretic tank and causing surface damage or coating defects, thus hindering the improvement of operating efficiency in large-scale electrophoretic coating production scenarios.

[0006] The technical solution of this utility model is as follows: an anti-settling circulation device for an electrophoresis tank for automotive parts, including an electrophoresis tank, the bottom wall of the inner cavity of the electrophoresis tank being inclined, and two sets of storage frames. The electrophoresis tank is equipped with two sets of lifting and movable storage frames. Multiple sets of spray pipes are fixedly arranged between the bottom wall of the inner cavity of the electrophoresis tank and the bottom of the storage frames. The multiple sets of spray pipes are connected in a through state and arranged horizontally, with the spray holes of the multiple sets of spray pipes facing the bottom wall of the inner cavity of the electrophoresis tank.

[0007] Preferably, when using this electrophoretic coating device, firstly, the automotive parts to be coated are placed in two sets of storage frames to complete the material loading. Then, the storage frames are smoothly lowered into the inner cavity of the electrophoretic tank, and the parts are completely immersed in the electrophoretic coating. Electrophoretic deposition is completed under the action of an electric field. During the coating process, to prevent the electrophoretic coating from settling due to prolonged static placement, a circulation mechanism is activated to extract the coating from the electrophoretic tank. After pressurization, the coating is transported to multiple horizontally arranged spray pipes. The spray nozzles of the spray pipes face the bottom wall of the inner cavity of the electrophoretic tank. The coating material is sprayed from the spray nozzle, forming a scouring flow on the bottom of the tank. This breaks the static state of the coating, preventing pigment sedimentation, and promotes liquid circulation within the tank, resulting in uniform coating concentration and improved coating quality. After coating is completed, the storage frame is lifted out of the electrophoretic coating tank. Once excess coating on the surface of the parts drips back into the tank, the coated parts can be removed, completing the entire electrophoretic coating process. In summary, this device allows for convenient handling of automotive parts, improves operational efficiency, and is suitable for large-scale electrophoretic coating production of automotive parts.

[0008] Preferably, the electrophoresis tank has fixed plates symmetrically fixed on both sides of the tank wall, and multiple sets of guide rods are fixed on the upper surface of the fixed plates. Limiting rings are fixed on the top of the guide rods, and L-shaped brackets are symmetrically fixed on both sides of the top of the storage frame.

[0009] Preferably, the L-shaped bracket is slidably connected to two sets of guide rods, and one set of fixed plates has electrically controlled push rods symmetrically fixed on both sides inside, with the telescopic ends of the electrically controlled push rods fixedly connected to the inner wall of one set of L-shaped brackets.

[0010] Preferably, a support plate is fixedly installed on the bottom side wall of the electrophoresis tank, a circulation pump is fixedly installed on the upper surface of the support plate, a water inlet pipe is fixedly installed at the water inlet of the circulation pump, the water inlet of the water inlet pipe passes through the wall of the electrophoresis tank, and the water outlet of the circulation pump is fixedly connected to the water inlet of one of the spray pipes.

[0011] Preferably, a support frame is fixedly installed on one side of the electrophoresis tank, a liquid storage tank is fixedly installed on the upper surface of the support frame, and an inlet pipe is fixedly installed on the top of the liquid storage tank.

[0012] Preferably, a liquid outlet pipe is fixedly installed on the bottom side wall of the storage tank, and the liquid outlet end of the liquid outlet pipe is installed through the wall of the electrophoresis tank. A control valve is installed on the outer wall of the liquid outlet pipe.

[0013] Preferably, a drain pipe is fixedly installed on the other side of the electrophoresis tank, with the drain pipe located at the lower part of the inclined surface, and a drain valve is installed on the side wall of the drain pipe.

[0014] The beneficial effects of this utility model are:

[0015] 1. When using this electrophoretic coating device, firstly, the automotive parts to be coated are placed in two sets of storage frames to complete the material loading. Then, the storage frames are smoothly lowered into the inner cavity of the electrophoretic tank, and the parts are completely immersed in the electrophoretic coating. Electrophoretic deposition and coating are completed under the action of an electric field. During the coating process, to prevent the electrophoretic coating from settling due to prolonged static placement, a circulation mechanism is activated to extract the coating from the electrophoretic tank. After pressurization, the coating is transported to multiple sets of horizontally arranged spray pipes. The spray nozzles of the spray pipes face the bottom wall of the inner cavity of the electrophoretic tank. High pressure... The paint is sprayed from the spray nozzle, forming a scouring flow on the bottom of the tank. This breaks the static state of the paint, preventing pigment sedimentation, and promotes liquid circulation within the tank, resulting in uniform paint concentration and improved coating quality. After coating is completed, the storage frame is lifted out of the electrophoresis tank. Once excess paint on the surface of the parts drips back into the tank, the coated parts can be removed, completing the entire electrophoretic coating process. In summary, this device allows for convenient handling of automotive parts, improves operational efficiency, and is suitable for large-scale electrophoretic coating production of automotive parts.

[0016] 2. The circulation system consisting of multiple spray pipes and circulation pumps effectively prevents the electrophoretic coating from settling by spraying and flushing the bottom of the tank, ensuring the uniformity of the coating. The inclined design of the bottom wall of the electrophoresis tank, combined with the low-position setting of the drain pipe, facilitates the rapid discharge of old liquid and reduces residue. The replenishment system of the storage tank can replenish fresh coating at any time to maintain a stable liquid concentration in the tank. Attached Figure Description

[0017] Figure 1 The diagram shown is a first three-dimensional structural schematic of an anti-settling circulation device for an electrophoresis tank of automotive parts according to this utility model.

[0018] Figure 2 The diagram shown is a three-dimensional cross-sectional view of the first half of the electrophoresis tank of an anti-settling circulation device for electrophoresis tanks of automotive parts according to this utility model.

[0019] Figure 3The diagram shown is a two-dimensional cross-sectional view of the electrophoresis tank of an anti-settling circulation device for automotive parts according to this utility model.

[0020] Figure 4 The diagram shown is a three-dimensional structural illustration of the storage frame and lifting mechanism combination of an anti-settling circulation device for an electrophoresis tank of automotive parts according to this utility model.

[0021] Figure 5 The diagram shown is a three-dimensional structural schematic of the first combination of the spray pipe and circulation mechanism of the anti-settling circulation device for an electrophoresis tank of automotive parts according to this utility model.

[0022] Figure 6 The diagram shows a three-dimensional structural schematic of the spray pipe and circulation mechanism of the second combination of an anti-settling circulation device for an electrophoresis tank of automotive parts according to this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Electrophoresis tank; 2. Storage frame; 3. Spray pipe; 4. Fixing plate; 5. Guide rod; 6. Limiting ring; 7. L-shaped bracket; 8. Electrically controlled push rod; 9. Support plate; 10. Circulation pump; 11. Water suction pipe; 12. Support frame; 13. Storage tank; 14. Inlet pipe; 15. Outlet pipe; 16. Control valve; 17. Drain pipe; 18. Drain valve. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please see Figure 1 and Figure 2 This utility model provides an embodiment: an anti-settling circulation device for an electrophoresis tank of automotive parts, including an electrophoresis tank 1, the bottom wall of the inner cavity of the electrophoresis tank 1 is inclined, and two sets of storage frames 2 are also included. The electrophoresis tank 1 is provided with two sets of lifting and movable storage frames 2. Multiple sets of spray pipes 3 are fixedly arranged between the bottom wall of the inner cavity of the electrophoresis tank 1 and the bottom of the storage frames 2. The multiple sets of spray pipes 3 are connected in a through state and arranged horizontally. The spray holes of the multiple sets of spray pipes 3 face the bottom wall of the inner cavity of the electrophoresis tank 1.

[0026] Please see Figure 1 and Figure 4The electrophoresis tank 1 has symmetrically fixed plates 4 on both sides of the tank wall. Multiple sets of guide rods 5 are fixed on the upper surface of the fixed plates 4. Limiting rings 6 are fixed on the top of the guide rods 5. L-shaped brackets 7 are symmetrically fixed on both sides of the top of the storage frame 2. The L-shaped brackets 7 move up and down along the guide rods 5. The limiting rings 6 on the top of the guide rods 5 prevent them from falling out. The L-shaped brackets 7 are slidably connected to the two sets of guide rods 5. Electrically controlled push rods 8 are symmetrically fixed on both sides inside one set of fixed plates 4. The telescopic end of the electrically controlled push rod 8 is fixedly connected to the inner wall of one set of L-shaped brackets 7. When the electrically controlled push rod 8 is activated, it rises and its telescopic end drives the storage frame 2 out of the electrophoresis tank 1. After the excess paint on the surface of the parts drips back into the tank, the coated parts can be taken out.

[0027] Please see Figure 5 and Figure 6 A support plate 9 is fixedly installed on the bottom side wall of the electrophoresis tank 1. A circulation pump 10 is fixedly installed on the upper surface of the support plate 9. A water inlet pipe 11 is fixedly installed at the water inlet end of the circulation pump 10. The water inlet end of the water inlet pipe 11 passes through the wall of the electrophoresis tank 1. The water outlet end of the circulation pump 10 is fixedly connected to the water inlet end of one set of spray pipes 3. When the circulation pump 10 is started, the circulation pump 10 draws paint from the electrophoresis tank 1 through the water inlet pipe 11. After being pressurized, it is transported to multiple sets of horizontally arranged spray pipes 3. The spray holes of the spray pipes 3 face the bottom wall of the inner cavity of the electrophoresis tank 1. The high-pressure paint is sprayed out from the spray holes, forming a scouring flow on the bottom of the tank. On the one hand, it breaks the static state of the paint and avoids pigment sedimentation. On the other hand, it promotes the circulation of liquid in the tank, makes the paint concentration uniform, and improves the coating quality.

[0028] Please see Figure 2 and Figure 3 A support frame 12 is fixedly installed on one side of the electrophoresis tank 1. A storage tank 13 is fixedly installed on the upper surface of the support frame 12. An inlet pipe 14 is fixedly installed on the top of the storage tank 13. The coating can be added into the storage tank 13 through the inlet pipe 14. An outlet pipe 15 is fixedly installed on the bottom side wall of the storage tank 13. The outlet end of the outlet pipe 15 passes through the wall of the electrophoresis tank 1. A control valve 16 is installed on the outer wall of the outlet pipe 15. When it is necessary to add electrophoretic coating, the control valve 16 on the outlet pipe 15 on the bottom side wall of the storage tank 13 is opened. Fresh paint stored in the storage tank 13 flows into the electrophoresis tank 1 through the outlet pipe 15 to replenish the liquid lost due to circulation or evaporation. A drain pipe 17 is fixedly installed on the other side of the electrophoresis tank 1. The drain pipe 17 is located at the lower part of the inclined surface. A drain valve 18 is installed on the side wall of the drain pipe 17. When it is necessary to discharge old liquid or clean the tank, the drain valve 18 on the drain pipe 17 is opened. Since the bottom wall of the inner cavity of the electrophoresis tank 1 is an inclined surface, the liquid in the tank can naturally collect along the inclined surface to the drain pipe 17 and be quickly discharged to avoid residue.

[0029] When using this electrophoretic coating device, the working principle of the anti-settling circulation device for the electrophoretic tank of automotive parts of this utility model is as follows: First, the electrophoretic coating material is pre-injected into the electrophoretic tank 1 to form the liquid environment required for electrophoretic coating. During operation, the automotive parts to be coated are placed in the two sets of storage frames 2 respectively to complete the material loading. Then, the electrically controlled push rods 8 symmetrically arranged on both sides inside the fixed plate 4 are activated. The telescopic end of the electrically controlled push rod 8 retracts downward, driving the L-shaped bracket 7 fixedly connected to it to slide downward along the guide rod 5, so that the storage frame 2 descends smoothly into the inner cavity of the electrophoretic tank 1. The parts are completely immersed in the electrophoretic coating material and the electrophoretic deposition coating is completed under the action of the electric field.

[0030] During the coating process, to prevent the electrophoretic coating from settling due to prolonged static conditions (such as uneven coating caused by pigment particle settling), the circulation pump 10 on the support plate 9 is activated. The circulation pump 10 draws the coating from the electrophoretic tank 1 through the water pumping pipe 11, and after pressurization, it is transported to multiple sets of horizontally arranged spray pipes 3. The spray holes of the spray pipes 3 face the bottom wall of the inner cavity of the electrophoretic tank 1 (the bottom wall is designed with an inclined surface to facilitate liquid collection). The high-pressure coating is sprayed out from the spray holes, forming a scouring flow on the bottom of the tank. On the one hand, this breaks the static state of the coating and avoids pigment settling; on the other hand, it promotes the circulation of liquid in the tank, making the coating concentration uniform and improving the coating quality.

[0031] When it is necessary to replenish the electrophoretic coating, open the control valve 16 on the liquid outlet pipe 15 on the bottom side wall of the storage tank 13. The fresh coating stored in the storage tank 13 flows into the electrophoresis tank 1 through the liquid outlet pipe 15 to replenish the liquid lost due to circulation or evaporation. When it is necessary to discharge the old liquid or clean the tank, open the drain valve 18 on the drain pipe 17. Since the bottom wall of the inner cavity of the electrophoresis tank 1 is an inclined surface (the lower part is located on one side of the drain pipe 17), the liquid in the tank can naturally collect along the inclined surface to the drain pipe 17 and be discharged quickly to avoid residue.

[0032] After the coating is completed, start the electric push rod 8 to rise again, which will drive the storage frame 2 to lift the electrophoresis tank 1. After the excess paint on the surface of the parts drips back into the tank, the coated parts can be taken out, thus completing the entire electrophoresis coating process.

[0033] In summary, this utility model, through the cooperation of the liftable storage frame 2 and the electrically controlled push rod 8, enables convenient retrieval and placement of automotive parts, improving operational efficiency. The circulation system composed of multiple spray pipes 3 and the circulation pump 10 effectively prevents the electrophoretic coating from settling by spraying and rinsing the bottom of the tank, ensuring coating uniformity. The inclined surface design of the bottom wall of the electrophoretic tank 1, combined with the low-position setting of the drain pipe 17, facilitates the rapid discharge of old liquid and reduces residue. The replenishment system of the storage tank 13 can replenish fresh coating at any time, maintaining a stable liquid concentration in the tank. The overall structure is compact and highly integrated, taking into account the efficiency, quality, and ease of operation of electrophoretic coating, and is suitable for large-scale electrophoretic coating production of automotive parts.

[0034] Through the above steps, when using this electrophoretic coating device, firstly, the automotive parts to be coated are placed in two sets of storage frames 2 to complete the material loading. Then, the storage frames 2 are smoothly lowered into the inner cavity of the electrophoretic tank 1, and the parts are completely immersed in the electrophoretic coating. Electrophoretic deposition coating is completed under the action of an electric field. During the coating process, in order to prevent the electrophoretic coating from settling due to prolonged static placement, the circulation mechanism is activated to extract the coating from the electrophoretic tank 1. After being pressurized, the coating is transported to multiple sets of horizontally arranged spray pipes 3, with the spray holes of the spray pipes 3 facing the inner cavity of the electrophoretic tank 1. High-pressure coating is sprayed from the spray nozzles on the bottom wall, forming a scouring flow on the bottom of the tank. This breaks the static state of the coating, preventing pigment sedimentation, and promotes liquid circulation in the tank, making the coating concentration uniform and improving the coating quality. After coating is completed, the storage frame 2 is lifted out of the electrophoretic coating tank 1. After the excess coating on the surface of the parts drips back into the tank, the coated parts can be taken out, completing the entire electrophoretic coating process. In summary, this device can facilitate the handling of automotive parts, improve operational efficiency, and is suitable for large-scale electrophoretic coating production of automotive parts.

[0035] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An anti-settling circulating device for an electrophoretic tank for automobile parts, comprising an electrophoretic tank pool (1), wherein the bottom wall of the inner cavity of the electrophoretic tank pool (1) is provided in an inclined manner, and characterized in that: It also includes two sets of storage frames (2). The electrophoresis tank (1) is equipped with two sets of movable storage frames (2). Multiple sets of spray pipes (3) are fixedly installed between the bottom wall of the inner cavity of the electrophoresis tank (1) and the bottom of the storage frame (2). The multiple sets of spray pipes (3) are connected in a through state and arranged horizontally. The spray holes of the multiple sets of spray pipes (3) face the bottom wall of the inner cavity of the electrophoresis tank (1).

2. The anti-settling circulation device for an electrophoresis tank for automotive parts according to claim 1, characterized in that: The electrophoresis tank (1) has fixed plates (4) symmetrically fixed on both sides of the tank wall. Multiple sets of guide rods (5) are fixed on the upper surface of the fixed plates (4). Limiting rings (6) are fixed on the top of the guide rods (5). L-shaped brackets (7) are symmetrically fixed on both sides of the top of the storage frame (2).

3. The anti-settling circulation device for an electrophoresis tank for automotive parts according to claim 2, characterized in that: The L-shaped bracket (7) is slidably connected to two sets of guide rods (5). One set of fixed plates (4) has electrically controlled push rods (8) symmetrically fixed on both sides inside. The telescopic end of the electrically controlled push rod (8) is fixedly connected to the inner wall of one set of L-shaped brackets (7).

4. The anti-settling circulation device for an electrophoresis tank for automotive parts according to claim 1, characterized in that: A support plate (9) is fixedly installed on the bottom side wall of the electrophoresis tank (1). A circulation pump (10) is fixedly installed on the upper surface of the support plate (9). A water pump (11) is fixedly installed at the water inlet end of the circulation pump (10). The water inlet end of the water pump (11) is installed through the wall of the electrophoresis tank (1). The water outlet end of the circulation pump (10) is fixedly connected to the water inlet end of one of the spray pipes (3).

5. The anti-settling circulation device for an electrophoresis tank for automotive parts according to claim 1, characterized in that: A support frame (12) is fixedly installed on one side of the electrophoresis tank (1), and a liquid storage tank (13) is fixedly installed on the upper surface of the support frame (12). An inlet pipe (14) is fixedly installed on the top of the liquid storage tank (13).

6. The anti-settling circulation device for an electrophoresis tank for automotive parts according to claim 5, characterized in that: A liquid outlet pipe (15) is fixedly installed on the bottom side wall of the storage tank (13). The liquid outlet end of the liquid outlet pipe (15) is installed through the wall of the electrophoresis tank (1). A control valve (16) is installed on the outer wall of the liquid outlet pipe (15).

7. The anti-settling circulation device for an electrophoresis tank for automotive parts according to claim 1, characterized in that: A drain pipe (17) is fixedly installed on the other side of the electrophoresis tank (1). The drain pipe (17) is located at the lower part of the inclined surface, and a drain valve (18) is installed on the side wall of the drain pipe (17).

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