A device for removing impurities from electrophoretic coating

Abstract

The utility model relates to the technical field of electrophoresis, concretely relates to a kind of impurity removal devices of electrophoretic coating, comprising: rectangular box and four-prism box, hollow horizontal baffle assembly is connected to the lower end in rectangular box, hollow horizontal baffle assembly includes several rectangular liquid leakage holes, sliding hollow support plate assembly is connected in rectangular box, sliding hollow support plate assembly includes the triangular long strip block of equal number with rectangular liquid leakage hole and slidable;The lower end of four-prism box is connected with circular tube, the lower end of circular tube is connected with circular plate, the center of circular plate is provided with stirrer that extends into four-prism box;It further includes filter box assembly and liquid pump, Z-shaped liquid outlet pipe is connected between the outer circle of circular tube and filter box assembly, first switch valve is equipped on Z-shaped liquid outlet pipe, horizontal pipe is connected between the liquid inlet of liquid pump and filter box assembly, L-shaped pipe body is connected between the liquid outlet of liquid pump and rectangular box.The utility model structure is reasonable, and the problem of poor impurity removal effect is solved.

Description

Technical Field

[0001] This utility model relates to the field of electrophoresis technology, and in particular to a device for removing impurities in electrophoretic coating. Background Technology

[0002] Electrophoretic coating, with its advantages of water solubility, non-toxicity, and ease of automation, is widely used in the automotive, building materials, hardware, and home appliance industries. Its basic principle is to apply an external electric field, causing tiny particles such as pigments and resins suspended in the electrophoretic solution to move orderly along the direction of the electric field and deposit on the electrode substrate surface, forming a water-insoluble paint film. This coating method produces a full, uniform, smooth, and even coating, and the electrophoretic paint film outperforms other coating processes in terms of hardness, adhesion, corrosion resistance, impact resistance, and water permeability. When using electrophoretic coating systems to process automotive parts, impurities remaining after the parts' production can be carried into the electrophoretic solution, causing contamination. Therefore, impurity removal equipment is needed to clean the electrophoretic solution. Utility model patent CN223214185U discloses an impurity removal device for an electrophoretic coating system, belonging to the field of electrophoretic system technology. The invention includes an electrophoresis pool, on one side of which is equipped with a purification mechanism. This mechanism comprises a hollow shell containing a filter plate. An inlet pipe is installed at the top of the shell on one side of the filter plate, and a return pipe is installed at the bottom of the shell on the other side of the filter plate. A circulation pump is installed on the return pipe. This invention filters and removes impurities from the electrophoresis solution inside the electrophoresis pool, then reintroduces the filtered solution into the pool, thus achieving the recycling of the electrophoresis solution.

[0003] However, the above-mentioned existing technical solutions have the following drawbacks: When using electrophoresis liquid to coat automotive parts, the impurities remaining on the automotive parts will be dispersed in the electrophoresis liquid. Under the action of gravity, the impurities will settle to the bottom of the electrophoresis pool. When the circulating pump works to extract and filter the electrophoresis liquid, it can only extract and filter the electrophoresis liquid containing impurities in a local area at the bottom of the electrophoresis pool. The electrophoresis liquid containing impurities in other areas cannot be filtered and removed in time, resulting in an unsatisfactory removal effect. This will still have a significant impact on subsequent coating work, that is, reduce the coating effect. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a device for removing impurities in electrophoretic coating, which solves the problem of poor impurity removal effect.

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution: a device for removing impurities in electrophoretic coating, comprising: a rectangular box and a frustum-shaped box body with an opening at its lower end; a hollow horizontal partition assembly is connected to the lower end of the rectangular box; the hollow horizontal partition assembly includes a plurality of rectangular leakage holes; a sliding hollow support plate assembly is connected inside the rectangular box; the sliding hollow support plate assembly includes a number of sliding triangular strips equal to the number of rectangular leakage holes, suitable for sealing the rectangular leakage holes; The lower end of the frustum-shaped box is connected to a round tube, and the lower end of the round tube is connected to a round plate. A stirrer that extends into the frustum-shaped box is inserted through the center of the round plate. It also includes a filter box assembly and a liquid pump. A Z-shaped liquid outlet pipe is connected between the filter box assembly and the outer circle of the circular tube. A first switching valve is provided on the Z-shaped liquid outlet pipe. A horizontal pipe is connected between the liquid inlet of the liquid pump and the filter box assembly. An L-shaped pipe is connected between the liquid outlet of the liquid pump and the rectangular box. A U-shaped pipe is connected between the rectangular box and the frustum-shaped box. A second switching valve is provided on the U-shaped pipe.

[0006] By adopting the above technical solution, during application, automotive parts are placed in a rectangular box for coating. After coating, impurities on the automotive parts remain in the electrophoretic coating solution. These impurities fall downwards through several rectangular drain holes on the perforated horizontal partition assembly and eventually adhere to the inner wall of the frustum-shaped box. When an external electric field is applied, some impurities are carried by tiny particles such as pigments and resins in the electrophoretic coating solution and move along the direction of the electric field, thus adhering to the surface of the automotive parts and significantly affecting the electrophoretic coating effect. Therefore, it is necessary to filter and remove the impurities that settle in the electrophoretic coating solution. The specific operation is as follows: First, the triangular strip on the sliding hollow support plate assembly is moved a certain distance to seal the rectangular leakage hole. Second, the stirrer is started to agitate the electrophoretic solution inside the frustum-shaped box, causing impurities adhering to the inner wall of the box to be fully mixed into the electrophoretic solution after being impacted. Then, the first and second switch valves are opened, and the electrophoretic solution inside the frustum-shaped box flows into the filter box assembly for filtration through the Z-shaped outlet pipe. The pump is then started to extract the filtered electrophoretic solution from the filter box assembly and allow it to flow back into the rectangular box. Through continuous circulation, the impurities in the electrophoretic solution are efficiently removed. During this process, the design of the triangular strip sealing the rectangular leakage hole avoids interference with the coating work caused by the agitation of the electrophoretic solution inside the frustum-shaped box. This improves coating efficiency, reduces the adverse effects of sedimented impurities in the electrophoretic solution on electrophoretic coating, enhances the impurity removal effect, and thus improves the overall quality of electrophoretic coating.

[0007] In a preferred embodiment, the present invention can be further configured as follows: the hollow horizontal partition assembly further includes several long strips, both ends of which are connected to the inner wall of the rectangular box, and the rectangular leakage hole is provided between adjacent long strips. The rectangular leakage hole is provided between a side long strip and the inner wall of the rectangular box, and the width of the triangular long strip is greater than the width of the rectangular leakage hole.

[0008] By adopting the above technical solution, during the electrophoretic coating process, the triangular strip block is positioned directly above the corresponding strip plate, and the upper surface of the triangular strip block is in contact with the strip plate. Some impurities remaining on the automotive parts are guided by the inclined surface of the triangular strip block and continuously fall through the rectangular drain hole, eventually settling onto the inner wall of the frustum-shaped box. When it is necessary to clean impurities from the electrophoretic solution, the triangular strip block is moved a certain distance to block the rectangular drain hole. Through the combined action of the triangular strip block and the strip plate, the settled impurities are effectively prevented from flowing upwards when the electrophoretic solution is stirred within the frustum-shaped box, achieving the effect of impurity blocking.

[0009] In a preferred embodiment, the present invention can be further configured as follows: the sliding hollow support plate assembly further includes two horizontal U-shaped sliding grooves symmetrically connected to the inner wall of the rectangular box, and a plurality of the aforementioned triangular strips are provided between the horizontal U-shaped sliding grooves. The two ends of the triangular strips are respectively connected to sliders, and the sliders extend into the corresponding horizontal U-shaped sliding grooves. It also includes two round rods that are spaced apart and connected to the triangular strips, and the round rods are perpendicular to the triangular strips.

[0010] By adopting the above technical solution, and with the help of the connecting action of the round rod, several triangular strips form an integrated structure. By operating the round rod, all the triangular strips can be moved synchronously, thereby achieving the sealing of the rectangular leakage hole.

[0011] In a preferred embodiment, the present invention can be further configured such that: the stirrer includes a rotating shaft passing through the center of a circular plate, the lower end of the rotating shaft is connected to a motor, and the outer circular surface of the upper end is connected with a plurality of inclined stirring plates at intervals.

[0012] By adopting the above technical solution, after the motor starts, it drives the rotating shaft to rotate. The rotating shaft synchronously drives several inclined stirring plates to rotate, which in turn drives the electrophoretic liquid in the frustum-shaped box to flow and generate a certain impact force, so that the impurities attached to the inner wall of the frustum-shaped box are fully mixed with the electrophoretic liquid. Then, the impurity-containing electrophoretic liquid is filtered through the filter box assembly, and finally the impurity removal effect is achieved.

[0013] In a preferred embodiment, the present invention can be further configured as follows: the filter box assembly includes a filter box body and a box cover with an opening at its upper end; the inner cavity of the filter box body is provided with two filter plates spaced apart; the filter plates include filter screens; vertical U-shaped sliding grooves are respectively sleeved on the front and rear sides of the filter screens; the vertical U-shaped sliding grooves are connected to the inner wall of the filter box body.

[0014] By adopting the above technical solution, two filter plates are installed inside the filter box, which can be used alternately. When cleaning impurities on one filter plate, the other filter plate can continue to filter the electrophoresis liquid, ensuring that the entire filtration process is uninterrupted and effectively improving filtration efficiency.

[0015] In a preferred embodiment, the present invention can be further configured such that the sliding hollow support plate assembly also includes two symmetrically arranged U-shaped rods, the two ends of which are respectively connected to corresponding round rods, and the top of the U-shaped rods extends to the top of the rectangular box.

[0016] By adopting the above technical solution, two people can push the U-shaped rod simultaneously, which in turn drives all the triangular blocks to move synchronously, greatly improving the convenience of operation.

[0017] In summary, this utility model has at least one of the following beneficial technical effects: The rectangular drain hole guides impurities to settle, while the triangular strip block acts as a barrier, preventing impurities from floating and interfering with the coating process during stirring. The agitator ensures that impurities on the inner wall of the tank are fully mixed into the electrophoretic solution, and then circulated through the filter assembly for efficient impurity removal. The overall structure ensures that coating and impurity removal are carried out simultaneously without interference, improving coating efficiency, while also reducing the adverse effects of impurities on the electrophoretic coating, significantly optimizing the impurity removal effect and the quality of the electrophoretic coating. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of a preferred embodiment of the impurity removal device for electrophoretic coating according to this utility model.

[0019] Figure 2 This is a schematic diagram of the structure connecting the hollow horizontal partition assembly, the sliding hollow support plate assembly, the rectangular box, the frustum-shaped box body, and the stirrer in this utility model.

[0020] Figure 3 yes Figure 1 A schematic diagram of the structure of the middle filter box assembly.

[0021] Figure 4 yes Figure 2 A schematic diagram of the connection between the hollow horizontal partition assembly and the sliding hollow support plate assembly.

[0022] Figure 5 yes Figure 2 A schematic diagram of the structure of the stirrer.

[0023] In the diagram: 1. Rectangular box; 2. Frustum-shaped box body; 30. Hollowed-out horizontal partition assembly; 40. Sliding hollowed-out support plate assembly; 50. Stirrer; 60. Filter box assembly; 7. Circular tube; 8. Circular plate; 9. Liquid pump; 11. Z-shaped liquid outlet pipe; 12. First switch valve; 13. Horizontal pipe; 14. L-shaped pipe body; 15. U-shaped pipe; 16. Second switch valve; 17. Support leg; 31. Rectangular leakage hole; 32. Long strip plate; 41. Triangular strip; 42. Horizontal U-shaped groove; 43. Sliding block; 44. Round rod; 45. U-shaped rod; 51. Rotating shaft; 52. Motor; 53. Inclined stirring plate; 61. Filter box body; 62. Box cover; 63. Filter plate; 631. Filter screen; 632. Vertical U-shaped chute. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] It should be noted that these figures are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0026] Reference Figures 1-5 This utility model discloses a device for removing impurities in electrophoretic coating, comprising: a rectangular box 1 and a frustum-shaped box 2 connected to its lower opening; a hollow horizontal partition assembly 30 is connected to the lower end of the rectangular box 1, the hollow horizontal partition assembly 30 includes a plurality of rectangular leakage holes 31; a sliding hollow support plate assembly 40 is connected inside the rectangular box 1, the sliding hollow support plate assembly 40 includes a number of sliding triangular strips 41 equal to the number of rectangular leakage holes 31, suitable for sealing the rectangular leakage holes 31.

[0027] The hollow horizontal partition assembly 30 also includes several long strips 32, both ends of which are connected to the inner wall of the rectangular box 1. Rectangular drainage holes 31 are provided between adjacent long strips 32, and a rectangular drainage hole 31 is also provided between one of the side long strips 32 and the inner wall of the rectangular box 1. The width of the triangular long strip 41 is greater than the width of the rectangular drainage hole 31. During the electrophoretic coating process, the triangular long strip 41 is located directly above the corresponding long strip 32, and the upper surface of the triangular long strip 41 is in contact with the long strip 32. Some impurities remaining on the automotive parts will be guided by the inclined surface of the triangular long strip 41 and continuously fall through the rectangular drainage hole 31, eventually settling into the inner wall of the frustum-shaped box 2. When it is necessary to clean impurities in the electrophoresis solution, the triangular strip block 41 is moved a certain distance to block the rectangular leakage hole 31. With the cooperation of the triangular strip block 41 and the strip plate 32, the settled impurities in the frustum-shaped box 2 can be effectively prevented from flowing upward when the electrophoresis solution is stirred, thus achieving the effect of impurity blocking.

[0028] The sliding perforated support plate assembly 40 also includes two horizontal U-shaped slide rails 42 symmetrically connected to the inner wall of the rectangular box 1. Several triangular elongated blocks 41 are arranged between the horizontal U-shaped slide rails 42. Slider blocks 43 are connected to both ends of each triangular elongated block 41, and the sliders 43 extend into the corresponding horizontal U-shaped slide rails 42. It also includes two round rods 44 spaced apart and connected to the triangular elongated blocks 41, with the round rods 44 perpendicular to the triangular elongated blocks 41. Through the connecting action of the round rods 44, the several triangular elongated blocks 41 form an integrated structure. By operating the round rods 44, all the triangular elongated blocks 41 can be moved synchronously, thereby sealing the rectangular leakage hole 31.

[0029] A circular tube 7 is connected to the lower end of the frustum-shaped box 2, and a circular plate 8 is connected to the lower end of the circular tube 7. A stirrer 50, which extends into the frustum-shaped box 2, is inserted through the center of the circular plate 8. The stirrer 50 includes a rotating shaft 51, which is inserted through the center of the circular plate 8. The rotating shaft 51 and the circular plate 8 are connected in a rotatable sealed manner. A motor 52 is connected to the lower end of the rotating shaft 51, and several inclined stirring plates 53 are connected at intervals on the outer circular surface of the upper end. After the motor 52 is started, it drives the rotating shaft 51 to rotate. The rotating shaft 51 synchronously drives the several inclined stirring plates 53 to rotate, thereby driving the electrophoresis liquid in the frustum-shaped box 2 to flow and generate a certain impact force, so that the impurities adhering to the inner wall of the frustum-shaped box 2 are fully mixed with the electrophoresis liquid. Then, the impurity-containing electrophoresis liquid is filtered through the filter box assembly 60, and finally the impurity removal effect is achieved.

[0030] It also includes a filter box assembly 60 and a liquid pump 9. A Z-shaped liquid outlet pipe 11 is connected between the filter box assembly 60 and the outer circle of the circular tube 7. A first switch valve 12 is provided on the Z-shaped liquid outlet pipe 11. A horizontal pipe 13 is connected between the liquid inlet of the liquid pump 9 and the filter box assembly 60. An L-shaped pipe 14 is connected between the liquid outlet of the liquid pump 9 and the rectangular box 1. A U-shaped pipe 15 is connected between the rectangular box 1 and the frustum-shaped box 2. A second switch valve 16 is provided on the U-shaped pipe.

[0031] The filter box assembly 60 includes a filter box body 61 and a cover 62 with an opening at its upper end. The inner cavity of the filter box body 61 is provided with two filter plates 63 spaced apart. Each filter plate 63 includes a filter screen 631, and vertical U-shaped sliding grooves 632 are respectively fitted onto the front and rear sides of the filter screen 631. The vertical U-shaped sliding grooves 632 are connected to the inner wall of the filter box body 61. The two filter plates 63 housed within the filter box body 61 allow for alternating use of the filter plates 63—while cleaning impurities from one filter plate 63, the other filter plate 63 can continue filtering the electrophoresis solution, ensuring uninterrupted filtration and effectively improving filtration efficiency.

[0032] The sliding hollow support plate assembly 40 also includes two symmetrically arranged U-shaped rods 45, with each end of the U-shaped rod 45 connected to a corresponding round rod 44. The top of the U-shaped rod 44 extends above the rectangular box 1. Two people can simultaneously push the U-shaped rods 45, which synchronously moves all the triangular elongated blocks 41, greatly improving the ease of operation.

[0033] Two legs 17 are connected at intervals on the front and rear sides of the rectangular box 1.

[0034] The implementation principle of this embodiment is as follows: During use, automotive parts are placed in a rectangular box 1 for coating. After coating, impurities on the automotive parts remain in the electrophoretic coating solution. These impurities fall downwards through several rectangular drain holes 31 on the hollow horizontal partition assembly 30 and eventually adhere to the inner wall of the truncated quadrangular box 2. When an external electric field is applied, some impurities are carried by tiny particles such as pigments and resins in the electrophoretic coating solution and move along the direction of the electric field, thus adhering to the surface of the automotive parts and significantly affecting the electrophoretic coating effect. Therefore, it is necessary to filter and remove the impurities that settle in the electrophoretic coating solution. The specific operation is as follows: First, push the triangular strip 41 on the sliding hollow support plate assembly 40 to move a certain distance, and use the triangular strip 41 to block the rectangular leakage hole 31; second, start the stirrer 50 to stir the electrophoretic liquid in the truncated quadrangular box 2, so that the impurities attached to the inner wall of the box are fully mixed into the electrophoretic liquid after being impacted; then, open the first switch valve 12 and the second switch valve 16, and the electrophoretic liquid in the truncated quadrangular box 2 flows into the filter box assembly 60 for filtration through the Z-shaped liquid outlet pipe 11. Then, start the liquid pump 9 to extract the filtered electrophoretic liquid in the filter box assembly 60 and let it flow back into the rectangular box 1. Through continuous circulation, the impurities in the electrophoretic liquid are efficiently removed. During this process, the sealing design of the triangular strip block 41 to the rectangular leakage hole 31 can avoid interference with the coating work when the electrophoretic liquid is stirred in the truncated square box 2. This not only improves the coating efficiency, but also reduces the adverse effects of sedimented impurities in the electrophoretic liquid on the electrophoretic coating, improves the impurity removal effect, and thus enhances the overall electrophoretic coating quality.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for removing impurities during electrophoretic coating, comprising: A rectangular box (1) and a frustum-shaped box (2) connected to its lower opening are characterized in that a hollow horizontal partition assembly (30) is connected to the lower end of the rectangular box (1), the hollow horizontal partition assembly (30) includes a plurality of rectangular leakage holes (31), and a sliding hollow support plate assembly (40) is connected inside the rectangular box (1), the sliding hollow support plate assembly (40) includes a number of sliding triangular strips (41) equal to the number of rectangular leakage holes (31), which are suitable for sealing the rectangular leakage holes (31); The lower end of the frustum-shaped box (2) is connected to a round tube (7), and the lower end of the round tube (7) is connected to a circular plate (8). A stirrer (50) that extends into the frustum-shaped box (2) is inserted through the center of the circular plate (8). It also includes a filter box assembly (60) and a liquid pump (9). A Z-shaped outlet pipe (11) is connected between the filter box assembly (60) and the outer circle of the round pipe (7). A first switch valve (12) is provided on the Z-shaped outlet pipe (11). A horizontal pipe (13) is connected between the inlet of the liquid pump (9) and the filter box assembly (60). An L-shaped pipe (14) is connected between the outlet of the liquid pump (9) and the rectangular box (1). A U-shaped pipe (15) is connected between the rectangular box (1) and the frustum-shaped box (2). A second switch valve (16) is provided on the U-shaped pipe.

2. The impurity removal device for electrophoretic coating according to claim 1, characterized in that, The hollow horizontal partition assembly (30) also includes several long strips (32), both ends of which are connected to the inner wall of the rectangular box (1). The rectangular leakage hole (31) is provided between adjacent long strips (32), and the rectangular leakage hole (31) is provided between a side long strip (32) and the inner wall of the rectangular box (1). The width of the triangular strip (41) is greater than the width of the rectangular leakage hole (31).

3. The impurity removal device for electrophoretic coating according to claim 1, characterized in that, The sliding hollow support plate assembly (40) also includes two horizontal U-shaped slide rails (42) symmetrically connected to the inner wall of the rectangular box (1). A number of triangular strips (41) are provided between the horizontal U-shaped slide rails (42). The two ends of the triangular strips (41) are respectively connected to sliders (43). The sliders (43) extend into the corresponding horizontal U-shaped slide rails (42). It also includes two round rods (44) that are spaced apart and connected to the triangular strips (41). The round rods (44) are perpendicular to the triangular strips (41).

4. The impurity removal device for electrophoretic coating according to claim 1, characterized in that, The stirrer (50) includes a rotating shaft (51) which passes through the center of the circular plate (8). The lower end of the rotating shaft (51) is connected to a motor (52), and the outer surface of the upper end is connected with several inclined stirring plates (53) at intervals.

5. The impurity removal device for electrophoretic coating according to claim 1, characterized in that, The filter box assembly (60) includes a filter box body (61) and a box cover (62) with an opening at its upper end. The inner cavity of the filter box body (61) is provided with two filter plates (63) spaced apart. The filter plates (63) include filter screens (631). Vertical U-shaped sliding grooves (632) are respectively sleeved on the front and rear sides of the filter screens (631). The vertical U-shaped sliding grooves (632) are connected to the inner wall of the filter box body (61).

6. The impurity removal device for electrophoretic coating according to claim 3, characterized in that, The sliding hollow support plate assembly (40) also includes two symmetrically arranged U-shaped rods (45), the two ends of which are connected to corresponding round rods (44), and the top of the U-shaped rods (44) extends to the top of the rectangular box (1).

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