Electrophoresis painting device for computer case preparation

By designing an electrophoretic paint device with a reverse agitation arm assembly and a double-point misalignment arm assembly, the problem of long production period of traditional electrophoretic paint is solved, and dynamic electrophoretic paint and high-quality paint effect of computer chassis are achieved.

CN120060952AInactive Publication Date: 2025-05-30山东万德自动化科技有限公司
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Patent Information

Application Number
CN202510492559.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2025-05-30
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional computer chassis cannot be dynamically painted during electrophoretic coating, resulting in long construction periods and slow production cycles.

Method used

An electrophoretic paint device is designed, including an electrophoretic pool assembly, a reverse stirring arm assembly and a double-point misalignment arm assembly. By driving the motor to rotate these components, the dynamic electrophoretic paint of the computer chassis and the dynamic reverse agitation of the electrophoretic liquid are realized.

Benefits of technology

Dynamic electrophoretic coating of computer chassis is realized, shortening construction period, improving the quality of painting, and avoiding blind spots during electrophoretic coating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of painting, and discloses an electrophoresis painting device for preparing a computer case, which comprises an electrophoresis cell assembly, a plurality of groups of reverse flow stirring arm assemblies are annularly arranged on the electrophoresis cell assembly, and each group of reverse flow stirring arm assembly is provided with a double-point staggered abutting arm assembly for internally supporting, abutting and fixing the computer case. During use, the drive motor rotates to drive the case to be sequentially immersed into the bottom of the electrophoresis tank and lifted out of the bottom of the electrophoresis tank, so that immersion electrophoresis of the computer case and lifting material taking after electrophoresis are achieved, and during immersion electrophoresis, the inner shaft arm drives the computer case at the bottom of the bottom frame circular truncated cone to rotate to achieve dynamic electrophoresis painting. The outer shaft arm drives the two flow stirring plates to reversely rotate on the periphery of the computer case, reverse stirring of electrophoresis liquid on the periphery of the computer case, namely dynamic flowing of the electrophoresis liquid, is accelerated, and the painting quality is guaranteed through dynamic electrophoresis painting of rotation of the computer case and dynamic reverse stirring of the electrophoresis liquid on the periphery of the computer case.
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Description

Technical Field

[0001] The invention belongs to the technical field of painting, and in particular relates to an electrophoretic painting device for preparing a computer case. Background Art

[0002] Electrophoresis refers to the process in which charged particles move toward an electrode with opposite electrical properties under the action of an electric field, causing a layer of metal film to adhere to the surface of metal or other material parts to prevent metal oxidation.

[0003] The prior art has the following problems: electrophoresis is often used to paint computer cases, but the following problems exist at present. Traditional computer cases are directly immersed in the electrophoresis tank by hooking. This method is very simple, but this traditional method limits the movement of the computer case, that is, it can only ensure that the computer case is relatively statically immersed in the electrophoresis tank, and cannot achieve dynamic painting of the computer case in the electrophoresis tank. This leads to a long electrophoresis processing period for the computer case and no subsequent accelerated draining process, which delays the entire production cycle. Therefore, it is urgent to solve the above problems. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides an electrophoretic painting device for preparing a computer case, which has the characteristics of dynamic painting.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrophoretic painting device for preparing a computer case, comprising an electrophoretic pool assembly, a plurality of groups of reverse flow stirring arm assemblies are arranged around the electrophoretic pool assembly, each group of the reverse flow stirring arm assemblies is provided with a double-point staggered resistance arm assembly for internally supporting, resisting and fixing the computer case, the electrophoretic pool assembly drives the reverse flow stirring arm assembly and the double-point staggered resistance arm assembly to perform rotational immersion and lifting of electrophoresis, during the rotational immersion process, the reverse flow stirring arm assembly and the double-point staggered resistance arm assembly form a reverse flow stirring electrophoresis structure on the electrophoretic pool assembly to accelerate uniform electrophoresis of the case, during the rotational lifting process, the reverse flow stirring arm assembly and the double-point staggered resistance arm assembly form a box-throwing structure on the electrophoretic pool assembly to accelerate the draining of the case, and during the immersion process, the double-point staggered resistance arm assembly itself forms a staggered internal support resistance structure to prevent blind spot electrophoresis.

[0006] In a preferred embodiment of an electrophoretic painting device for preparing a computer case, the electrophoretic pool assembly includes an electrophoretic pool, a conical gear ring is fixedly arranged on a first end frame on one side of the top of the electrophoretic pool through a side arm, and a drive motor is fixedly arranged on a second end frame on the other side of the top of the electrophoretic pool, and a support arm is arranged on the output shaft of the drive motor; The reverse flow stirring arm assembly includes a U-shaped flow stirring frame. An inner shaft arm is rotatably arranged at the top of the U-shaped flow stirring frame, and an outer shaft arm is rotatably arranged at the bottom of the U-shaped flow stirring frame. A reversing bevel gear is rotatably arranged in the middle of the U-shaped flow stirring frame. A second bevel gear is fixedly arranged at the top of the inner shaft arm, and a first bevel gear is fixedly arranged at the top of the outer shaft arm. Stirring plates are fixedly arranged at both ends of the bottom of the outer shaft arm through bifurcated arms. A bottom frame circular platform with a vertical arm is fixedly arranged at the bottom of the inner shaft arm. Cross arms are fixedly arranged on both sides of the vertical arm, and a cylinder is fixedly arranged on the back of the vertical arm. An L-shaped arm is fixedly arranged at the bottom of the cylinder; The double-point misaligned contact arm assembly includes a main driving gear. A first fixed seat and a second fixed seat are respectively arranged on both sides of the main driving gear. A first movable seat is arranged below the first fixed seat. Two first contact arms are hinged by two first hinge arms on both sides of the first fixed seat and the first movable seat. A second driving arm is fixedly arranged inside the first movable seat. A second movable seat is arranged below the second fixed seat. Two second contact arms are hinged by two second hinge arms on both sides of the second fixed seat and the second movable seat. A first driving arm is fixedly arranged inside the second movable seat. Limit sliding rods are fixedly arranged on the tops of the first movable seat and the second movable seat.

[0007] In a preferred embodiment of an electrophoresis painting device for manufacturing a computer chassis, the two first hinge arms are hinged in a shape of an eight between the first contact arm, the first fixed seat and the first movable seat, and the two second hinge arms are hinged in a shape of an eight between the second contact arm, the second movable seat and the second fixed seat.

[0008] In a preferred embodiment of an electrophoresis painting device for manufacturing a computer chassis, chutes for the limit sliding rods to penetrate and slide are provided on both the second fixed seat and the first fixed seat. The limit sliding rod on the top of the first movable seat penetrates and slides on the first fixed seat, and the limit sliding rod on the top of the second movable seat penetrates and slides on the second fixed seat.

[0009] In a preferred embodiment of an electrophoresis painting device for manufacturing a computer chassis, the L-shaped arm at the bottom of the cylinder is fixedly connected to the second driving arm. The main driving gear is rotatably arranged on the inner frame of the vertical arm. The cross arms at both ends of the bottom of the vertical arm are respectively fixedly connected to the second fixed seat and the first fixed seat.

[0010] In a preferred embodiment of an electrophoresis painting device for manufacturing a computer chassis, both sides of the main driving gear are respectively meshed with the second driving arm and the first driving arm, and the second driving arm and the first driving arm form a staggered telescopic arm structure on both sides of the main driving gear.

[0011] In a preferred embodiment of an electrophoretic painting device for preparing a computer chassis, the U-shaped flow stirring frame is fixedly arranged on the support arm. On the side of the second bevel gear away from the reversing bevel gear, it meshes with the conical tooth ring, and the second bevel gear rotates and travels around the conical tooth ring.

[0012] In a preferred embodiment of an electrophoretic painting device for preparing a computer chassis, circular grooves for the inner shaft arm to penetrate are provided at the bottoms of the first bevel gear, the outer shaft arm, and the U-shaped flow stirring frame, and the inner shaft arm rotates in the circular grooves at the bottoms of the first bevel gear, the outer shaft arm, and the U-shaped flow stirring frame.

[0013] In a preferred embodiment of an electrophoretic painting device for preparing a computer chassis, the top of the reversing bevel gear meshes with the second bevel gear, and the bottom of the reversing bevel gear meshes with the first bevel gear. Through the meshing of the reversing bevel gear, the second bevel gear, and the first bevel gear, a synchronously reversing arm structure is formed between the inner shaft arm and the outer shaft arm.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By rotating the drive motor, multiple groups of reverse flow stirring arm assemblies and double-point misaligned contact arm assemblies are driven to sequentially immerse in the bottom of the electrophoresis tank and lift out from the bottom of the electrophoresis tank, thereby realizing the immersion electrophoresis of the computer chassis and the lifting and material taking after electrophoresis. During the immersion electrophoresis, as the drive motor rotates, at this time, the inner shaft arm drives the computer chassis at the bottom of the chassis turntable to rotate, realizing the rotational electrophoretic painting of the computer chassis, that is, dynamic electrophoretic painting. At the same time, the outer shaft arm drives the two flow stirring plates to rotate in the opposite direction around the computer chassis, accelerating the reverse stirring of the electrophoresis liquid around the computer chassis, that is, the dynamic flow of the electrophoresis liquid. Through this dynamic electrophoretic painting with the rotation of the computer chassis and the dynamic reverse stirring of the electrophoresis liquid around the computer chassis, on the one hand, the computer chassis is always in the process of dynamic electrophoretic painting, ensuring the painting quality. On the other hand, the computer chassis is always between the electrophoresis liquids flowing in the reverse direction, thus further ensuring the painting quality. Through the design of the meshing and reversing technical solution of the present invention, the two first contact arms and the two second contact arms on both sides of the main driving gear are in a misaligned opening and closing structure. In this way, when the first contact arm internally braces and fixes the computer chassis, the second contact arm does not contact the computer chassis, and the computer chassis at the position of the second contact arm can contact the electrophoresis liquid for painting. When the second contact arm internally braces and fixes the computer chassis, the first contact arm does not contact the computer chassis, and the computer chassis at the position of the first contact arm can contact the electrophoresis liquid for painting. Through this design of the meshing and reversing type internal bracing misalignment technical solution, the blind spots during the electrophoretic painting of the computer chassis are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the present invention; Figure 2 is a perspective view of the present invention from another perspective; Figure 3 An exploded view of the present invention; Figure 4 is a three-dimensional diagram of an electric pool assembly of the present invention; Figure 5 It is a stereoscopic view of the reverse stirring arm assembly and the double-point misalignment conflict arm assembly of the present invention; Figure 6 is a three-dimensional diagram of the reverse stirring arm assembly of the present invention; Figure 7 A three-dimensional diagram of a double-point misalignment interference arm assembly of the present invention; In the figure: 100, electric pool assembly; 101, electric pool; 102, first end frame; 103, side arm; 104, conical gear ring; 105, support arm; 106, drive motor; 107, second end frame; 200, reverse stirring arm assembly; 201, U-shaped stirring frame; 202, reversing bevel gear; 203, bottom frame round table; 204, cylinder; 205, vertical arm; 206, horizontal arm; 207, L-shaped arm; 208, stirring plate; 209, bifurcated arm; 210, outer shaft Arm; 211, first bevel gear; 212, second bevel gear; 213, inner shaft arm; 300, double-point offset interference arm assembly; 301, first fixed seat; 302, first hinged arm; 303, first interference arm; 304, first movable seat; 305, first toothed arm; 306, second movable seat; 307, second interference arm; 308, second hinged arm; 309, limiting slide bar; 310, second fixed seat; 311, main toothed gear; 312, second toothed arm. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figures 1-7As shown, the present invention provides an electrophoretic painting device for preparing a computer case, including an electrophoretic pool assembly 100, on which a plurality of reverse agitation arm assemblies 200 are arranged, each of which is provided with a double-point misaligned abutment arm assembly 300 for internally supporting and abutting the computer case, and the electrophoretic pool assembly 100 drives the reverse agitation arm assembly 200 and the double-point misaligned abutment arm assembly 300 to perform rotational immersion and lifting of electrophoresis, and during the rotation During the dynamic immersion process, the reverse agitation arm assembly 200 and the double-point dislocation contact arm assembly 300 form a reverse agitation electrophoresis structure on the electrophoresis pool assembly 100 to accelerate uniform electrophoresis of the chassis. During the rotational lifting process, the reverse agitation arm assembly 200 and the double-point dislocation contact arm assembly 300 form a box-swinging structure on the electrophoresis pool assembly 100 to accelerate the drainage of the chassis. During the immersion process, the double-point dislocation contact arm assembly 300 itself forms a dislocation internal support contact structure to prevent blind spot electrophoresis.

[0018] In a preferred embodiment, please refer to Figure 4 The electric pool assembly 100 includes an electric pool 101, a conical gear ring 104 is fixedly provided on a first end frame 102 on one side of the top of the electric pool 101 through a side arm 103, and a driving motor 106 is fixedly provided on a second end frame 107 on the other side of the top of the electric pool 101, and a support arm 105 is provided on the output shaft of the driving motor 106.

[0019] In a preferred embodiment, please refer to Figure 6, the reverse flow stirring arm assembly 200 includes a U-shaped flow stirring frame 201. An inner shaft arm 213 is rotatably arranged at the top of the U-shaped flow stirring frame 201, and an outer shaft arm 210 is rotatably arranged at the bottom of the U-shaped flow stirring frame 201. A reversing bevel gear 202 is rotatably arranged in the middle of the U-shaped flow stirring frame 201. A second bevel gear 212 is fixedly arranged at the top of the inner shaft arm 213, and a first bevel gear 211 is fixedly arranged at the top of the outer shaft arm 210. Flow stirring plates 208 are fixedly arranged at both ends of the bottom of the outer shaft arm 210 through bifurcated arms 209. A bottom frame turntable 203 with a vertical arm 205 is fixedly arranged at the bottom of the inner shaft arm 213. Horizontal arms 206 are fixedly arranged on both sides of the vertical arm 205, and a cylinder 204 is fixedly arranged on the back of the vertical arm 205. An L-shaped arm 207 is fixedly arranged at the bottom of the cylinder 204. The L-shaped arm 207 at the bottom of the cylinder 204 is fixedly connected to a second tooth moving arm 312. A main tooth moving gear 311 is rotatably arranged on the inner frame of the vertical arm 205. The horizontal arms 206 at both ends of the bottom of the vertical arm 205 are respectively fixedly connected to a second fixed seat 310 and a first fixed seat 301. The U-shaped flow stirring frame 201 is fixedly arranged on a support arm 105. The side of the second bevel gear 212 away from the reversing bevel gear 202 meshes with a conical tooth ring 104, and the second bevel gear 212 rotates and travels in a ring on the conical tooth ring 104. Circular grooves for the inner shaft arm 213 to pass through are formed at the first bevel gear 211, the outer shaft arm 210, and the bottom of the U-shaped flow stirring frame 201. The inner shaft arm 213 rotates in the circular grooves at the first bevel gear 211, the outer shaft arm 210, and the bottom of the U-shaped flow stirring frame 201. The top of the reversing bevel gear 202 meshes with the second bevel gear 212, and the bottom of the reversing bevel gear 202 meshes with the first bevel gear 211. Through the meshing of the reversing bevel gear 202, the second bevel gear 212, and the first bevel gear 211, an arm rod structure with synchronous reverse rotation is formed between the inner shaft arm 213 and the outer shaft arm 210.

[0020] In a preferred embodiment, please refer to Figure 7, the double-point misaligned contact arm assembly 300 includes a main driving gear 311. On both sides of the main driving gear 311, a first fixed seat 301 and a second fixed seat 310 are respectively arranged. Below the first fixed seat 301, a first movable seat 304 is arranged. On both sides of the first fixed seat 301 and the first movable seat 304, two first contact arms 303 are hinged by two first hinge arms 302. Inside the first movable seat 304, a second driving arm 312 is fixedly arranged. Below the second fixed seat 310, a second movable seat 306 is arranged. On both sides of the second fixed seat 310 and the second movable seat 306, two second contact arms 307 are hinged by two second hinge arms 308. Inside the second movable seat 306, a first driving arm 305 is fixedly arranged. On the tops of the first movable seat 304 and the second movable seat 306, limiting slide rods 309 are fixedly arranged. The two first hinge arms 302 are hinged in a spread shape between the first contact arm 303, the first fixed seat 301 and the first movable seat 304. The two second hinge arms 308 are hinged in a spread shape between the second contact arm 307, the second movable seat 306 and the second fixed seat 310. On both the second fixed seat 310 and the first fixed seat 301, chutes for the limiting slide rods 309 to penetrate and slide are provided. The limiting slide rod 309 on the top of the first movable seat 304 penetrates and slides on the first fixed seat 301. The limiting slide rod 309 on the top of the second movable seat 306 penetrates and slides on the second fixed seat 310. Both sides of the main driving gear 311 are respectively meshed with the second driving arm 312 and the first driving arm 305. The second driving arm 312 and the first driving arm 305 form a staggered telescopic arm structure on both sides of the main driving gear 311.

[0021] The working principle of the present invention is as follows: When in use, the driving motor 106 drives the support arm 105 to rotate. On the edge of the support arm 105, multiple groups of reverse flow-disturbing arm assemblies 200 are fixedly arranged. On the reverse flow-disturbing arm assemblies 200, a double-point misaligned contact arm assembly 300 is arranged. That is, the driving motor 106 drives multiple groups of reverse flow-disturbing arm assemblies 200 and the double-point misaligned contact arm assembly 300 to rotate through the support arm 105. Inside the double-point misaligned contact arm assembly 300, a computer chassis is fixedly supported. That is, by the rotation of the driving motor 106, multiple groups of reverse flow-disturbing arm assemblies 200 and the double-point misaligned contact arm assembly 300 are successively immersed in the bottom of the electrophoresis tank 101 and lifted out from the bottom of the electrophoresis tank 101, so as to realize the immersion electrophoresis of the computer chassis and the lifting and material taking after electrophoresis.

[0022] On the basis of the above, when the driving motor 106 drives the multiple sets of reverse stirring arm assemblies 200 and the double-point misaligned contact arm assemblies 300 to rotate, the second bevel gear 212 is meshed on the conical gear ring 104. During the rotation process, the second bevel gear 212 meshes and moves in a circle on the conical gear ring 104. Through this meshing and moving, when the driving motor 106 rotates, the inner shaft arm 213 rotates with it. Since the top of the reversing bevel gear 202 meshes with the second bevel gear 212, and the bottom of the reversing bevel gear 202 meshes with the first bevel gear 211, when the inner shaft arm 213 rotates with it, through the meshing of the reversing bevel gear 202, the second bevel gear 212 and the first bevel gear 211, a synchronously reversed arm rod structure is formed between the inner shaft arm 213 and the outer shaft arm 210. A computer case is fixed on the inner support of the offset resistance arm assembly 300. At this time, the computer case is set between the two flow stirring plates 208. That is, when immersed in electrophoresis, as the drive motor 106 rotates, the inner shaft arm 213 drives the computer case at the bottom of the bottom frame table 203 to rotate, so as to realize the rotational electrophoretic painting of the computer case, that is, dynamic electrophoretic painting. At the same time, the outer shaft arm 210 drives the two flow stirring plates 208 to rotate in the opposite direction around the computer case, accelerating the reverse stirring of the electrophoretic liquid around the computer case, that is, the dynamic flow of the electrophoretic liquid. Through the dynamic electrophoretic painting of the rotation of the computer case and the dynamic reverse stirring of the electrophoretic liquid around the computer case, on the one hand, the computer case is always in the dynamic electrophoretic painting process to ensure the painting quality, and on the other hand, the computer case is always between the reversely flowing electrophoretic liquids, thereby further ensuring the painting quality.

[0023] On the above basis, the computer chassis is misaligned and fixed on the double-point misaligned contact arm assembly 300. The double-point misaligned contact arm assembly 300 is arranged below the inner shaft arm 213. The double-point misaligned contact arm assembly 300 of the present invention itself forms a misaligned inner support contact structure for anti-blind spot electrophoresis. Through the unique technical solution of the double-point misaligned contact arm assembly 300 of the present invention, when the computer chassis is inner supported and fixed, misaligned inner support contact fixation is achieved, avoiding the blind spots in electrophoretic painting. The specific technical solution is as follows. When the computer chassis is fixed, the second toothed moving arm 312 is driven to slide upward by the air cylinder 204 and the L-shaped arm 207. At this time, the first movable seat 304 approaches the first fixed seat 301. Through the cooperation of the first hinge arm 302, two first contact arms 303 on both sides of the first fixed seat 301 and the first movable seat 304 form an outward-expanded inner support fixation structure. In this way, the inner support fixation of the computer chassis is achieved. When the two first contact arms 303 are outward-expanded and inner supported, since the second toothed moving arm 312 slides upward, and since both sides of the main toothed moving gear 311 are respectively meshed with the second toothed moving arm 312 and the first toothed moving arm 305, at this time when the second toothed moving arm 312 slides upward, through this meshing commutation structure, the first toothed moving arm 305 slides downward. When the first toothed moving arm 305 slides downward, at this time the second movable seat 306 and the second fixed seat 310 move away from each other. Through the action of the two second hinge arms 308, an inner support structure of inward contraction and convergence is formed between the two second contact arms 307. That is, through the design of this meshing commutation technical solution, the two first contact arms 303 and the two second contact arms 307 on both sides of the main toothed moving gear 311 are in a misaligned expansion and contraction structure. In this way, when the first contact arm 303 inner supports and fixes the computer chassis, the second contact arm 307 does not contact the computer chassis, and the computer chassis at the position of the second contact arm 307 can be in contact with the electrophoretic liquid for painting. When the second contact arm 307 inner supports and fixes the computer chassis, the first contact arm 303 does not contact the computer chassis, and the computer chassis at the position of the first contact arm 303 can be in contact with the electrophoretic liquid for painting. Through the design of this meshing commutation type inner support misalignment technical solution, the blind spots in the electrophoretic painting of the computer chassis are avoided.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrophoretic painting device for preparing a computer case, comprising an electrophoretic pool assembly (100), characterized in that: The electrophoresis pool assembly (100) is provided with a plurality of reverse flow stirring arm assemblies (200) around its upper ring, and each group of the reverse flow stirring arm assemblies (200) is provided with a double-point offset contact arm assembly (300) for internally supporting and contacting the computer case. The electrophoresis pool assembly (100) drives the reverse flow stirring arm assembly (200) and the double-point offset contact arm assembly (300) to perform rotational immersion and lifting of electrophoresis. During the rotational immersion process, the reverse flow stirring arm assembly (200) 00) and the double-point misaligned abutment arm assembly (300) form a reverse agitation electrophoresis structure on the electrophoresis pool assembly (100) to accelerate uniform electrophoresis of the chassis. During the rotational lifting process, the reverse agitation arm assembly (200) and the double-point misaligned abutment arm assembly (300) form a box-swinging structure on the electrophoresis pool assembly (100) to accelerate draining of the chassis. During the immersion process, the double-point misaligned abutment arm assembly (300) itself forms a misaligned internal support abutment structure to prevent blind spot electrophoresis.

2. The electrophoretic painting device for preparing a computer case according to claim 1, characterized in that: The electric pool assembly (100) comprises an electric pool (101), a conical gear ring (104) is fixedly arranged on a first end frame (102) on one side of the top of the electric pool (101) via a side arm (103), and a drive motor (106) is fixedly arranged on a second end frame (107) on the other side of the top of the electric pool (101), and a support arm (105) is arranged on the output shaft of the drive motor (106); The reverse flow stirring arm assembly (200) comprises a U-shaped flow stirring frame (201), the top of the U-shaped flow stirring frame (201) is rotatably provided with an inner shaft arm (213), and the bottom of the U-shaped flow stirring frame (201) is rotatably provided with an outer shaft arm (210), the middle of the U-shaped flow stirring frame (201) is rotatably provided with a reversing bevel gear (202), the top of the inner shaft arm (213) is fixedly provided with a second bevel gear (212), and the top of the outer shaft arm (210) is fixedly provided with a first bevel gear (210). A bevel gear (211), agitator plates (208) are fixedly provided at both ends of the bottom of the outer shaft arm (210) via bifurcated arms (209), a bottom frame truncated table (203) with a vertical arm (205) is fixedly provided at the bottom of the inner shaft arm (213), horizontal arms (206) are fixedly provided on both sides of the vertical arm (205), a cylinder (204) is fixedly provided on the back of the vertical arm (205), and an L-shaped arm (207) is fixedly provided at the bottom of the cylinder (204); The double-point misaligned abutment arm assembly (300) comprises a main gear (311), a first fixed seat (301) and a second fixed seat (310) are respectively arranged on both sides of the main gear (311), a first movable seat (304) is arranged below the first fixed seat (301), two first abutment arms (303) are hingedly connected to the first fixed seat (301) and the first movable seat (304) on both sides via two first hinged arms (302), and the inner side of the first movable seat (304) is fixed with a first fixed seat (301) and a second fixed seat (310) are respectively arranged on both sides of the main gear (311), and a first movable seat (304) is arranged below the first fixed seat (301), and two first abutment arms (303) are hingedly connected to the first fixed seat (301) and the first movable seat (304) on both sides via two first hinged arms (302). A second toothed movable arm (312) is fixedly provided, a second movable seat (306) is provided below the second fixed seat (310), two second abutment arms (307) are hingedly connected on both sides of the second fixed seat (310) and the second movable seat (306) via two second hinged arms (308), a first toothed movable arm (305) is fixedly provided on the inner side of the second movable seat (306), and a limiting sliding rod (309) is fixedly provided on the top of the first movable seat (304) and the second movable seat (306).

3. The electrophoretic painting device for preparing a computer case according to claim 2, characterized in that: The two first hinged arms (302) are hinged in an "eight" shape between the first abutting arm (303), the first fixed seat (301) and the first movable seat (304), and the two second hinged arms (308) are hinged in an "eight" shape between the second abutting arm (307), the second movable seat (306) and the second fixed seat (310).

4. The electrophoretic painting device for preparing a computer case according to claim 2, characterized in that: The second fixed seat (310) and the first fixed seat (301) are both provided with a slide groove for the limiting slide bar (309) to slide through, the limiting slide bar (309) on the top of the first movable seat (304) slides through the first fixed seat (301), and the limiting slide bar (309) on the top of the second movable seat (306) slides through the second fixed seat (310).

5. The electrophoretic painting device for preparing a computer case according to claim 2, characterized in that: The L-shaped arm (207) at the bottom of the cylinder (204) is fixedly connected to the second geared arm (312), the main geared gear (311) is rotatably arranged on the inner frame of the vertical arm (205), and the horizontal arms (206) at both ends of the bottom of the vertical arm (205) are respectively fixedly connected to the second fixed seat (310) and the first fixed seat (301).

6. The electrophoretic painting device for preparing a computer case according to claim 2, characterized in that: The two sides of the main gear (311) are respectively meshed with the second gear arm (312) and the first gear arm (305); the second gear arm (312) and the first gear arm (305) form a staggered telescopic arm structure on both sides of the main gear (311).

7. The electrophoretic painting device for preparing a computer case according to claim 2, characterized in that: The U-shaped flow stirring frame (201) is fixedly arranged on the support arm (105); the second bevel gear (212) is meshed with the conical gear ring (104) on a side away from the reversing bevel gear (202); and the second bevel gear (212) is arranged on the conical gear ring (104) to rotate and move.

8. The electrophoretic painting device for preparing a computer case according to claim 2, characterized in that: The first bevel gear (211), the outer shaft arm (210) and the bottom of the U-shaped flow stirring frame (201) are all provided with a circular groove for the inner shaft arm (213) to pass through, and the inner shaft arm (213) rotates in the circular groove at the bottom of the first bevel gear (211), the outer shaft arm (210) and the U-shaped flow stirring frame (201).

9. The electrophoretic painting device for preparing a computer case according to claim 2, characterized in that: The top of the reversing bevel gear (202) meshes with the second bevel gear (212), and the bottom of the reversing bevel gear (202) meshes with the first bevel gear (211); through the meshing of the reversing bevel gear (202), the second bevel gear (212) and the first bevel gear (211), a synchronously reversed arm structure is formed between the inner shaft arm (213) and the outer shaft arm (210).