An electrophoresis tank for electrophoretic coating

Abstract

This utility model relates to the field of electrophoretic coating tank technology, and discloses an electrophoretic coating tank, including an electrophoretic tank, a hoisting component for loading and unloading processed products at the top of the electrophoretic tank, a circulation component for internal circulation of the electrophoretic liquid at the bottom of the electrophoretic tank, and a flow guiding component for guiding the circulating electrophoretic liquid inside the electrophoretic tank. By utilizing the flow guiding component and the circulation component, the half-gear intermittently meshes with the rack during rotation, lifting the swing frame upwards. This causes the square tank to intermittently block and open the three sets of drain wheels installed in the fixed frame, allowing the three sets of drain wheels to intermittently output return electrophoretic liquid into the electrophoretic tank. This promotes convection of the electrophoretic liquid within the tank, improves its mixing effect, and prevents uneven electrophoretic coating during product electrophoresis, thus ensuring the quality of the electrophoretic coating.

Description

Technical Field

[0001] This utility model relates to the field of electrophoretic coating tank technology, specifically to an electrophoretic tank for electrophoretic coating. Background Technology

[0002] Electrophoretic coating is a surface coating technology widely used in the coating processes of metals, plastics, and other materials. It provides protection, aesthetics, and functionality by forming a uniform and durable coating on the surface of an object. The basic principle of electrophoretic coating is to use an electric field to deposit charged paint particles onto the surface of the workpiece.

[0003] According to a public notice (announcement number: CN222274742U) regarding an electrophoretic coating tank, the electrophoretic frame is immersed in the electrophoretic tank for electrophoretic coating. The item is placed inside the electrophoretic frame, and the bottom of the electrophoretic frame has a mesh structure to facilitate full contact between the object and the electrophoretic liquid for uniform coating.

[0004] However, in actual use, although the above equipment uses a circulation pipe to extract the electrophoretic solution in the electrophoresis tank and re-input it on the other side to achieve the circulation effect, this circulation method firstly results in a relatively unidirectional flow of the electrophoretic solution, which leads to poor electrophoresis effect on one side of the product. Secondly, the different mixing degree of the electrophoretic solution at different depths leads to inconsistent electrophoresis progress on different surfaces of the product, reducing the quality of the electrophoretic processing of the product.

[0005] Therefore, this invention proposes an electrophoresis tank for electrophoretic coating to compensate for and improve the deficiencies of the prior art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides an electrophoresis tank for electrophoretic coating, which can effectively solve the technical problem of inconsistent electrophoresis progress caused by different contact efficiencies between different areas of the product and the electrophoretic solution.

[0007] To achieve the above objectives, this utility model employs the following technical solution:

[0008] This utility model discloses an electrophoresis tank for electrophoretic coating, comprising an electrophoresis tank, a hoisting assembly for loading and unloading processed products at the top of the electrophoresis tank, a circulation assembly for internal circulation of the electrophoretic liquid at the bottom of the electrophoresis tank, and a flow guiding assembly for turbulence of the circulating electrophoretic liquid inside the electrophoresis tank. The flow guiding assembly includes a rotating wheel rotatably mounted on the inner wall of the electrophoresis tank, a rotating rod passing through and fixedly mounted at the axis of the rotating wheel, a small gear rotatably mounted on the inner wall of the electrophoresis tank, a half gear coaxially fixedly mounted on the small gear, a fixed frame fixedly mounted on the inner wall of the electrophoresis tank, a drain wheel rotatably mounted on the inner wall of the fixed frame, a swing frame slidably mounted on the inner wall of the fixed frame, a square groove formed on the inner wall of the swing frame, a rack fixedly mounted on the inner surface of the swing frame, a protrusion fixedly mounted on the outer wall of the swing frame, and springs fixedly connected to the upper and lower outer walls of the protrusion.

[0009] Preferably, the hoisting assembly includes a U-shaped frame fixedly installed on the top of the electrophoresis tank, a servo motor fixedly installed on the top of the U-shaped frame, a steel cable driven by a take-up roller at the output end of the servo motor, a sliding frame fixedly connected to the end of the steel cable, and an electrophoresis frame fixedly installed at the bottom of the sliding frame.

[0010] Preferably, the circulation assembly includes a circulation pipe fixedly installed on the outer wall of the bottom of the electrophoresis tank, a fixing plate fixedly installed on the top inner wall of the circulation pipe, a circulation motor fixedly installed on the outer wall of the fixing plate, a turbine rotatably installed on the bottom side wall of the fixing plate, and a filter screen fixedly installed on the inner wall of the end of the circulation pipe.

[0011] Preferably, the number of circulation components is set to three sets, and the three sets of circulation components are evenly distributed in a linear array on the outside of the electrophoresis tank. The flow guiding component is set at one end of the circulation tube, and the positions of the flow guiding components corresponding to the three sets of circulation components are staggered.

[0012] Preferably, the number of drainage wheels is set to three sets, and the three sets of drainage wheels are arranged in a vertical linear array in the fixed frame. The number of square grooves is set to two sets, and the two sets of square grooves are symmetrically arranged with the horizontal central axis of the swing frame as the axis of symmetry. The height of the square groove is greater than the outer diameter of the drainage wheel.

[0013] Preferably, the inner walls of the left and right sides of the fixing frame are provided with rectangular grooves of a size that are adapted to the protrusions, and the two ends of the spring are fixedly connected to the outer wall of the protrusions and the inner wall of the end of the rectangular grooves, respectively.

[0014] Preferably, the inside of the discharge wheel is provided with a dispersion component that increases the dispersion area of ​​the electrophoretic liquid. The dispersion component includes a straight hole at the center of the discharge wheel, an oblique hole on the inner wall of the discharge wheel, and a coil spring sleeved on the arc-shaped outer wall of the discharge wheel.

[0015] Compared with known public technologies, the technical solution provided in this utility model has the following advantages:

[0016] This utility model utilizes a flow guiding component and a circulation component. The continuous rotation of the turbine drives the rotating rod and wheel to rotate. In conjunction with the rotation of the pinion, the half-gear intermittently meshes with the rack during its rotation, lifting the swing frame upward. After the half-gear disengages from the rack, the swing frame slides downward to reset under the elastic force of the spring. This allows the square groove to intermittently block and open the three sets of drain wheels installed in the fixed frame, enabling the three sets of drain wheels to intermittently output return electrophoretic liquid into the electrophoresis tank. This promotes the convection of the electrophoretic liquid in the electrophoresis tank, improves its mixing effect, and avoids uneven electrophoresis during product electrophoresis, which would affect the quality of the electrophoretic coating.

[0017] Secondly, when the reflux electrophoretic liquid output from the outlet end of the circulation pipe flows through the discharge wheel, the up-and-down swing of the swing frame causes the straight holes and oblique holes inside the discharge wheel to be in a through state, resulting in uneven force on the discharge wheel itself and thus a tendency to rotate. With the cooperation of the coil spring, the discharge wheel can promote the reflux electrophoretic liquid to be more dispersed, thereby improving the reflux dispersion effect of the electrophoretic liquid. Attached Figure Description

[0018] The present utility is further described with reference to embodiments illustrated in the following figures, wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a top view of the electrophoresis tank of this utility model;

[0021] Figure 3 This is a schematic cross-sectional view of the electrophoresis tank of this utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the end of the circulation pipe of this utility model;

[0023] Figure 5 This is a schematic diagram of the swing frame structure of this utility model;

[0024] Figure 6 This is a cross-sectional view of the fixed frame structure of this utility model;

[0025] Figure 7 This is a cross-sectional view of the discharge wheel of this utility model.

[0026] The labels in the diagram represent:

[0027] 1. Electrophoresis tank;

[0028] 2. Lifting components; 21. U-shaped frame; 22. Servo motor; 23. Steel cable; 24. Sliding frame; 25. Electrophoresis frame;

[0029] 3. Circulation assembly; 31. Circulation pipe; 32. Fixing plate; 33. Circulation motor; 34. Turbine; 35. Filter screen;

[0030] 4. Flow guiding assembly; 41. Rotating rod; 42. Rotating wheel; 43. Pinion; 44. Half gear; 45. Fixed frame; 46. Drain wheel; 47. Swing frame; 48. Square groove; 49. Rack; 410. Protrusion; 411. Spring;

[0031] 5. Dispersion component; 51. Straight hole; 52. Angled hole; 53. Coil spring. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] The present invention will be further described below with reference to embodiments.

[0034] The electrophoresis tank for electrophoretic coating described above includes an electrophoresis tank 1. A hoisting assembly 2 for loading and unloading processed products is installed at the top of the electrophoresis tank 1. A circulation assembly 3 for internal circulation of the electrophoretic solution is installed at the bottom of the electrophoresis tank 1. A flow guiding assembly 4 for turbulent flow of the circulating electrophoretic solution is installed inside the electrophoresis tank 1. The flow guiding assembly 4 includes a rotating wheel 42 rotatably mounted on the inner wall of the electrophoresis tank 1. A rotating rod 41 is fixedly mounted through and on the axis of the rotating wheel 42. The inner wall of the electrophoresis tank 1 is rotatably mounted... A small gear 43 is installed, and a half gear 44 is coaxially fixedly installed on the small gear 43. A fixed frame 45 is fixedly installed on the inner wall of the electrophoresis tank 1. A drain wheel 46 is rotatably installed on the inner wall of the fixed frame 45. A swing frame 47 is slidably installed on the inner wall of the fixed frame 45. A square groove 48 is opened on the inner wall of the swing frame 47. A rack 49 is fixedly installed on the inner surface of the swing frame 47. A protrusion 410 is fixedly installed on the outer wall of the swing frame 47. Springs 411 are fixedly connected to the upper and lower outer walls of the protrusion 410.

[0035] The outer surface of the rotating wheel 42 is provided with teeth that can mesh with the pinion 43 to achieve transmission. When the rotating wheel 42 rotates, it can drive the pinion 43 to rotate. In addition, the half gear 44 meshes with the rack 49. At the same time, the inner wall of the fixed frame 45 is provided with a sliding groove that matches the size of the swing frame 47. The sliding groove passes through the upper and lower inner walls of the fixed frame 45. By rotating the half gear 44, it intermittently meshes with the rack 49 to drive the swing frame 47 upward. After the half gear 44 disengages from the rack 49, the swing frame 47 will slide downward and reset under the elastic force of the spring 411. Specifically, the rotating wheel 42 includes an inner ring and an outer ring, which are connected by a round rod to avoid obstructing the electrophoretic liquid transported by the circulation component 3.

[0036] The hoisting assembly 2 includes a U-shaped frame 21 fixedly installed on the top of the electrophoresis tank 1. A servo motor 22 is fixedly installed on the top of the U-shaped frame 21. The output end of the servo motor 22 is connected to a steel cable 23 via a winding roller. A sliding frame 24 is fixedly connected to the end of the steel cable 23. An electrophoresis frame 25 is fixedly installed at the bottom of the sliding frame 24.

[0037] The U-shaped frame 21 spans both sides of the electrophoresis tank 1, and two sets of servo motors 22 are provided. The two sets of servo motors 22 are mirror images of each other on both sides of the vertical central axis of the U-shaped frame 21. By starting the servo motors 22, the steel cable 23 is wound and unwound in coordination with the winding roller. At the same time, the inner walls of the left and right sides of the U-shaped frame 21 are provided with grooves that are adapted to the width of the sliding frame 24, so as to control the sliding frame 24 to drive the electrophoresis frame 25 to rise and fall. The electrophoresis frame 25 is used to place the products that need to be electrophoretically processed.

[0038] The circulation assembly 3 includes a circulation pipe 31 fixedly installed on the bottom outer wall of the electrophoresis tank 1, a fixing plate 32 fixedly installed on the top inner wall of the circulation pipe 31, a circulation motor 33 fixedly installed on the outer wall of the fixing plate 32, a turbine 34 rotatably installed on the bottom side wall of the fixing plate 32, and a filter screen 35 fixedly installed on the end inner wall of the circulation pipe 31.

[0039] The two ends of the circulation pipe 31 are respectively connected to the inner walls of the left and right sides of the electrophoresis tank 1. At the same time, there are two sets of fixed plates 32, circulation motors 33, turbines 34 and filter screens 35. The two sets of fixed plates 32, circulation motors 33, turbines 34 and filter screens 35 are mirror images of each other at the two ends of the circulation pipe 31. The end of the circulation pipe 31 located near the flow guide component 4 is the discharge end, and the end of the circulation pipe 31 located away from the flow guide component 4 is the feed end. The turbines 34 corresponding to the discharge end and the feed end rotate in opposite directions. Specifically, the output shaft of the circulation motor 33 is connected to the rotating rod 41, and the rotating rod 41 is connected to the turbine 34 through and fixedly. So when the two sets of circulation motors 33 are started, under the rotation of the turbines 34 at both ends of the circulation pipe 31, the electrophoretic liquid in the electrophoresis tank 1 is input from the feed end of the circulation pipe 31 and finally discharged from the discharge end of the circulation pipe 31 back into the electrophoresis tank 1, realizing the circulation and dispersion of the electrophoretic liquid.

[0040] The number of circulation components 3 is set to three sets, and the three sets of circulation components 3 are evenly distributed in a linear array on the outside of the electrophoresis tank 1. The flow guiding component 4 is set at one end of the circulation pipe 31, and the positions of the flow guiding component 4 corresponding to the three sets of circulation components 3 are staggered.

[0041] The arrangement of the flow guiding components 4 corresponding to the three sets of circulation components 3 makes the inlet and outlet positions of the two adjacent sets of circulation pipes 31 opposite, thereby reducing the inconsistent contact efficiency of the electrophoresis liquid when the product is electrophoresed in the electrophoresis tank 1, and ensuring that both sides of the product can effectively contact the circulating electrophoresis liquid, thus improving the electrophoretic processing quality of the product.

[0042] There are three sets of drain wheels 46, which are arranged in a vertical linear array within the fixed frame 45. There are two sets of square grooves 48, which are symmetrically arranged with the horizontal central axis of the swing frame 47 as the axis of symmetry. The height of the square grooves 48 is greater than the outer diameter of the drain wheels 46.

[0043] The three sets of draining wheels 46 are arranged vertically, so that the electrophoretic liquid discharged from the three sets of draining wheels 46 can be output from different depth positions in the electrophoresis tank 1, thereby promoting the flow and stirring of the electrophoretic liquid at different depths in the electrophoresis tank 1.

[0044] The inner walls on the left and right sides of the fixed frame 45 are provided with rectangular grooves of a size that are adapted to the protrusion 410. The two ends of the spring 411 are fixedly connected to the outer wall of the protrusion 410 and the inner wall of the end of the rectangular groove, respectively.

[0045] By guiding and restricting the protrusion 410 through the rectangular groove, it is ensured that the swing frame 47 can only slide vertically inside the fixed frame 45. At the same time, the rectangular groove can house and protect the protrusion 410 and the spring 411, preventing the electrophoretic liquid from affecting and interfering with the spring 411.

[0046] The interior of the discharge wheel 46 is provided with a dispersion component 5 to increase the dispersion area of ​​the electrophoretic liquid. The dispersion component 5 includes a straight hole 51 opened at the center of the discharge wheel 46, an oblique hole 52 opened on the inner wall of the discharge wheel 46, and a coil spring 53 sleeved on the arc-shaped outer wall of the discharge wheel 46.

[0047] Multiple sets of straight holes 51 and inclined holes 52 are provided. The multiple sets of straight holes 51 and inclined holes 52 are arranged in a circumferential array inside the drain wheel 46. At the same time, the two ends of the coil spring 53 are fixedly connected to the arc-shaped outer surface of the drain wheel 46 and the inner wall of the fixing frame 45, respectively, so that the drain wheel 46 has a tendency to rotate in the opposite direction when it rotates.

[0048] In actual use of this utility model, the electrophoresis solution is first injected into the electrophoresis tank 1, and then the product to be processed is placed in the electrophoresis frame 25. The servo motor 22 is started to control the sliding frame 24 to drive the electrophoresis frame 25 to move downward until it enters the electrophoresis solution in the electrophoresis tank 1, with the electrophoresis solution covering the electrophoresis frame 25. Then the circulation motor 33 is started. Under the continuous rotation of the turbine 34, the electrophoresis solution in the electrophoresis tank 1 enters from the feed end of the circulation pipe 31 and then is discharged from the discharge end back into the electrophoresis tank 1.

[0049] Meanwhile, the turbine 34, in conjunction with the rotating rod 41, drives the rotating wheel 42 to rotate, which in turn drives the pinion 43 and the half gear 44 to rotate. This causes them to intermittently mesh with the rack 49, lifting the swing frame 47 upward. After the half gear 44 disengages from the rack 49, the swing frame 47 slides downward to reset under the elastic force of the spring 411. This causes the square groove 48 to intermittently block and open the three sets of drain wheels 46 installed in the fixed frame 45, allowing the three sets of drain wheels 46 to intermittently output the return electrophoresis liquid into the electrophoresis tank 1. This promotes the convection of the electrophoresis liquid in the electrophoresis tank 1, improves its mixing effect, and avoids uneven electrophoresis during product electrophoresis.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electrophoretic tank for electrophoretic painting, comprising an electrophoretic tank (1), characterized in that: The top of the electrophoresis tank (1) is equipped with a hoisting assembly (2) for loading and unloading processed products. The bottom of the electrophoresis tank (1) is equipped with a circulation assembly (3) for internal circulation of the electrophoretic solution. The inside of the electrophoresis tank (1) is equipped with a flow guiding assembly (4) for turbulence of the circulating electrophoretic solution. The flow guiding assembly (4) includes a rotating wheel (42) rotatably mounted on the inner wall of the electrophoresis tank (1). A rotating rod (41) is fixedly mounted through the axis of the rotating wheel (42). A small gear (43) is rotatably mounted on the inner wall of the electrophoresis tank (1). A half gear (44) is fixedly installed on the coaxial axis. A fixed frame (45) is fixedly installed on the inner wall of the electrophoresis tank (1). A drain wheel (46) is rotatably installed on the inner wall of the fixed frame (45). A swing frame (47) is slidably installed on the inner wall of the fixed frame (45). A square groove (48) is opened on the inner wall of the swing frame (47). A rack (49) is fixedly installed on the inner surface of the swing frame (47). A protrusion (410) is fixedly installed on the outer wall of the swing frame (47). Springs (411) are fixedly connected to the upper and lower outer walls of the protrusion (410).

2. The electrophoretic tank for electrophoretic coating according to claim 1, characterized in that: The hoisting assembly (2) includes a U-shaped frame (21) fixedly installed on the top of the electrophoresis tank (1). A servo motor (22) is fixedly installed on the top of the U-shaped frame (21). The output end of the servo motor (22) is connected to a steel cable (23) via a winding roller. A sliding frame (24) is fixedly connected to the end of the steel cable (23). An electrophoresis frame (25) is fixedly installed at the bottom of the sliding frame (24).

3. The electrophoretic tank for electrophoretic coating according to claim 1, characterized in that: The circulation assembly (3) includes a circulation pipe (31) fixedly installed on the bottom outer wall of the electrophoresis tank (1), a fixing plate (32) fixedly installed on the top inner wall of the circulation pipe (31), a circulation motor (33) fixedly installed on the outer wall of the fixing plate (32), a turbine (34) rotatably installed on the bottom side wall of the fixing plate (32), and a filter screen (35) fixedly installed on the end inner wall of the circulation pipe (31).

4. The electrophoretic tank for electrophoretic coating according to claim 3, characterized in that: The number of circulation components (3) is set to three sets, and the three sets of circulation components (3) are evenly distributed in a linear array on the outside of the electrophoresis tank (1). The flow guiding component (4) is set at one end of the circulation pipe (31), and the positions of the flow guiding component (4) corresponding to the three sets of circulation components (3) are staggered.

5. The electrophoresis tank for electrophoretic coating according to claim 1, characterized in that: The number of the draining wheels (46) is set in three sets, and the three sets of draining wheels (46) are arranged in a vertical linear array in the fixed frame (45). The number of the square grooves (48) is set in two sets, and the two sets of square grooves (48) are symmetrically arranged with the horizontal central axis of the swing frame (47) as the axis of symmetry. The height of the square grooves (48) is greater than the outer diameter of the draining wheels (46).

6. The electrophoresis tank for electrophoretic coating according to claim 1, characterized in that: The inner walls of the left and right sides of the fixed frame (45) are provided with rectangular grooves of a size that are adapted to the protrusion (410). The two ends of the spring (411) are fixedly connected to the outer wall of the protrusion (410) and the inner wall of the end of the rectangular groove, respectively.

7. The electrophoresis tank for electrophoretic coating according to claim 1, characterized in that: The inside of the discharge wheel (46) is provided with a dispersion component (5) to increase the dispersion area of ​​the electrophoretic liquid. The dispersion component (5) includes a straight hole (51) opened at the center of the discharge wheel (46), an oblique hole (52) opened on the inner wall of the discharge wheel (46), and a coil spring (53) sleeved on the arc-shaped outer wall of the discharge wheel (46).

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