Aluminum alloy multicolor anodic oxidation dyeing device

Abstract

The utility model discloses a kind of aluminium alloy multicolor anodic oxidation dyeing devices, belong to aluminium alloy processing technical field, including frame, still including multicolor dyeing component and anti-pollution component, multicolor dyeing component for cooperating with aluminium alloy material to multicolor dyeing processing of feeding equipment is installed on the frame and is used for avoiding mutual pollution between multiple dyes anti-pollution component;The anti-pollution component includes mobile drainage component for following aluminium alloy material collection droplet and two for limiting aluminium alloy material and avoiding shaking limiting parts, mobile drainage component is connected with frame and multicolor dyeing component, and two limiting parts are symmetrically arranged and installed on the upper end of mobile drainage component. By the above-mentioned mode, through the setting of mobile drainage component, when aluminium alloy material is moved to discharge, the dye remaining on aluminium alloy material will not drop into other color dye to cause pollution, and product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminum alloy processing technical field, concretely relates to a kind of aluminum alloy multicolor anodic oxidation dyeing device. BACKGROUND

[0002] Titanium alloy is widely used in aerospace, military, chemical industry, medical treatment, automobile and other fields due to its excellent strength-weight ratio, corrosion resistance and high temperature performance. In order to improve the aesthetic and functionality of aluminum alloy, anodic oxidation can be used to form an oxide layer on the surface of aluminum alloy, and then immersed in dye to form aluminum alloy products of multiple colors.

[0003] For example, Chinese patent application CN210736930U discloses a device for aluminum alloy anodic oxidation dyeing, which includes a dyeing rack body. A plurality of groove bodies are arranged on the lower part of the dyeing rack body along its length direction. Horizontal sliding rails are arranged on both sides of the upper part of the dyeing rack body in its width direction. The horizontal sliding rails are arranged along the length direction of the dyeing rack body. A crown block frame is slidably connected to the horizontal sliding rails. The crown block frame includes a support frame body. Sliding wheels are arranged at both ends of the support frame body and rollingly cooperate with the horizontal sliding rails. A transmission shaft is connected between the two sliding wheels. A horizontal motor is arranged on the transmission shaft to drive the sliding wheels to roll. A lifting rod is arranged below the support frame. A product hanger is fixedly connected to the lifting rod. The support frame body is connected to a vertical driving mechanism to drive the lifting rod to lift.

[0004] However, when using the device for aluminum alloy anodic oxidation dyeing, if multi-color dyeing is required, different colors of dye are conveyed in multiple groove bodies. During the unloading process of the dyed products, the residual dye on the products may drop into other groove bodies, causing pollution to other colors of dye and affecting the quality of the final product.

[0005] Therefore, the utility model designs a kind of aluminum alloy multicolor anodic oxidation dyeing device to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the above shortcomings of the prior art, the utility model provides an aluminum alloy multicolor anodic oxidation dyeing device.

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions:

[0008] The aluminum alloy multicolor anodic oxidation dyeing device includes a frame, a multicolor dyeing assembly, and an anti-pollution assembly.

[0009] The frame is installed with a multicolor dyeing assembly for cooperating with a feeding device to perform multicolor dyeing treatment on aluminum alloy materials and an anti-pollution assembly for avoiding mutual pollution between multiple dyes.

[0010] The anti-pollution assembly comprises a moving liquid discharge assembly for collecting liquid drops following the movement of the aluminum alloy material and two limiting components for limiting the aluminum alloy material to avoid shaking, the moving liquid discharge assembly is connected with the frame and the multi-color dyeing assembly, and the two limiting components are symmetrically arranged on the upper end of the moving liquid discharge assembly.

[0011] Further, the frame comprises a support and two table surfaces, the two table surfaces are symmetrically arranged and fixedly installed on the upper end of the support, the multi-color dyeing assembly is installed between the two table surfaces, and the table surfaces are connected with the moving liquid discharge assembly.

[0012] Further, the multi-color dyeing assembly comprises three dyeing tank components, an air passage component and three upper hanging components, the three dyeing tank components are arranged left and right and connected in sequence, the dyeing tank components are connected with the air passage component, the three upper hanging components are respectively installed on the three dyeing tank components, and the front and rear ends of the dyeing tank components are connected with the inner sides of the two table surfaces.

[0013] Further, the dyeing tank component comprises a dyeing tank main body and two groups of fixing frames, each group of fixing frames comprises two fixing frames symmetrically arranged left and right, the two groups of fixing frames are fixedly installed on the front and rear sides of the upper end of the dyeing tank main body, the front and rear sides of the dyeing tank main body are fixedly connected with the two table surfaces, a liquid inlet is formed in the upper side wall of the dyeing tank main body, a liquid outlet is formed in the lower side wall of the dyeing tank main body, a valve is fixedly arranged outside the liquid outlet, the dyeing tank main bodies of the three dyeing tank components are arranged left and right and fixedly connected in sequence, and a through groove for cooperating with the upper hanging component is formed in the upper fixing frame.

[0014] Further, the air passage component comprises an air passage pipe, three groups of air passage branch pipes and a plurality of nozzles, each group of air passage branch pipes comprises two air passage branch pipes, the two ends of the air passage pipe are respectively penetrated through the three dyeing tank main bodies and fixedly connected with the dyeing tank main bodies in a sealed manner, the three groups of air passage branch pipes are respectively fixedly connected in communication with the air passage pipe inside the three dyeing tank main bodies, a plurality of nozzles are uniformly fixedly arranged in communication above the air passage branch pipes, one end of the air passage pipe is connected in communication with an air passage device, and a valve is fixedly arranged outside the other end of the air passage pipe.

[0015] Further, the upper hanging component comprises a placing frame, a plurality of clamping columns and two hangers, the plurality of clamping columns are fixedly installed on the front and rear ends of the placing frame, the clamping columns are clamped with the through groove in the upper fixing frame, the two hangers are symmetrically arranged and hung on the placing frame, the hanger comprises an installation column and a plurality of upper hanging columns, and the plurality of hanging columns are uniformly distributed and fixedly installed on the outer side of the installation column.

[0016] Further, the mobile drainage assembly comprises four fixed plates, a motor, a sliding rod, a threaded rod, a drainage chute plate and two liquid collecting tanks, the four fixed plates are fixedly installed on the left and right sides of the two table surfaces respectively, the motor is fixedly installed on the outer side of one fixed plate, the sliding rod and the threaded rod are located between the two fixed plates connected with the same table surface respectively, the sliding rod is fixedly connected with the fixed plate, the threaded rod is rotatably connected with the fixed plate, the output end of the motor is fixedly connected with one end of the threaded rod, the sliding rod is slidably connected with the drainage chute plate, the threaded rod is threadedly connected with the drainage chute plate, the drainage chute plate is located above the dyeing tank body, a through groove is formed in the upper end of the drainage chute plate, the through groove in the upper end of the drainage chute plate is gradually lowered from the middle to the front and rear sides, a limiting part is installed above the drainage chute plate, the two liquid collecting tanks are fixedly installed on the outer sides of the two table surfaces respectively, the inner bottom of the liquid collecting tank is inclinedly arranged, and the sidewall of the lower end of the inner bottom of the liquid collecting tank is provided with an opening for drainage.

[0017] Further, the limiting part comprises a mounting plate, a rotating seat, a rudder and a limiting frame, the mounting plate is fixedly installed on the upper end of the drainage chute plate, the rotating seat is fixedly installed on the upper end of the mounting plate, the rudder is fixedly installed on one side of the rotating seat, the output end of the rudder is fixedly connected with the limiting frame, one end of the limiting frame is rotatably installed on the inner side of the rotating seat, and the other end of the limiting frame is fixedly provided with two limiting columns matched with the lower end of the mounting column of the hanger.

[0018] Compared with the prior art, the utility model has the advantages that: 1. By the setting of the mobile drainage assembly, when the aluminum alloy material is moved and discharged, the dye remaining on the aluminum alloy material will not drop into other color dyes to cause pollution, and the product quality is improved.

[0019] 2. By the setting of the limiting frame, the aluminum alloy material can be limited during movement, so that the aluminum alloy material is prevented from shaking and falling due to inertia. By the cooperation of the air pipe and the air branch pipe, the dyes in multiple dyeing tank bodies can be stirred at the same time, resources are saved, and the dyeing effect of the dyes is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creating labor.

[0021] Figure 1 A three-dimensional view of the aluminum alloy multi-color anodic oxidation dyeing device Figure 1 ;

[0022] Figure 2A front view of the aluminum alloy multi-color anodic oxidation dyeing device of the utility model;

[0023] Figure 3 A plan view of the aluminum alloy multi-color anodic oxidation dyeing device of the utility model;

[0024] Figure 4 A perspective view of the aluminum alloy multi-color anodic oxidation dyeing device of the utility model Figure 2 ;

[0025] Figure 5 A perspective view of the aluminum alloy multi-color anodic oxidation dyeing device of the utility model Figure 2 ;

[0026] Figure 6 A zoomed view of A in the middle Figure 5

[0027] The numbers in the figure respectively represent:

[0028] 1. frame; 11. support; 12. table top; 2. multi-color dyeing assembly; 21. dyeing tank component; 211. dyeing tank main body; 212. liquid inlet; 213. liquid outlet; 214. fixing frame; 22. aeration component; 221. aeration pipe; 222. aeration branch pipe; 223. nozzle; 23. upper hanging component; 231. placing frame; 232. clamping column; 233. hanger; 3. anti-pollution assembly; 31. movable liquid discharge assembly; 311. fixing plate; 312. motor; 313. sliding rod; 314. threaded rod; 315. liquid discharge chute plate; 316. liquid collecting tank; 32. limiting component; 321. mounting plate; 322. rotating seat; 323. steering engine; 324. limiting frame. DETAILED DESCRIPTION

[0029] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] In the following description, "left", "right", "front", "back", "up", "down" are oriented in the perspective direction of the front view.

[0031] Embodiment one: in some embodiments, referring to the Figures 1-6 aluminum alloy multi-color anodic oxidation dyeing device, comprising a frame 1, further comprising a multi-color dyeing assembly 2 and an anti-pollution assembly 3; ​

[0032] The frame 1 is provided with a multi-color dyeing assembly 2 for cooperating with a feeding device to perform multi-color dyeing treatment on aluminum alloy materials and a pollution prevention assembly 3 for preventing mutual pollution between multiple dyes;

[0033] The pollution prevention assembly 3 comprises a moving drainage assembly 31 for following the movement of aluminum alloy material to collect drips and two limiting components 32 for limiting the aluminum alloy material to avoid shaking, the moving drainage assembly 31 is connected with the frame 1 and the multi-color dyeing assembly 2, and the two limiting components 32 are symmetrically arranged on the upper end of the moving drainage assembly 31.

[0034] When the aluminum alloy multi-color anodic oxidation dyeing device is normally used, the feeding device cooperates with the multi-color dyeing assembly 2 to hang the aluminum alloy materials, and places the hung aluminum alloy materials in the dyes for multi-color dyeing, and at the same time, air is supplied to the dyes. After dyeing is completed, the feeding device lifts the aluminum alloy materials, the moving drainage assembly 31 is started, the moving drainage assembly 31 moves to the lower side of the aluminum alloy materials, the residual dyes on the aluminum alloy materials drop onto the moving drainage assembly 31 and are collected and drained away, the limiting component 32 is started, the limiting component 32 limits and fixes the aluminum alloy materials, and then the feeding device is started, the feeding device drives the aluminum alloy materials to move and discharge, and at the same time, the moving drainage assembly 31 moves synchronously with the aluminum alloy materials. Through the arrangement of the moving drainage assembly 31, when the aluminum alloy materials are moved and discharged, the residual dyes on the aluminum alloy materials will not drop into other color dyes to cause pollution, and the product quality is improved.

[0035] The frame 1 comprises a support 11 and two table tops 12, the two table tops 12 are symmetrically arranged and fixedly installed on the upper end of the support 11, the multi-color dyeing assembly 2 is installed between the two table tops 12, and the table top 12 is connected with the moving drainage assembly 31.

[0036] The multi-color dyeing assembly 2 comprises three dyeing groove components 21, an air supply component 22 and three hanging components 23, the three dyeing groove components 21 are arranged side by side and connected in sequence, the dyeing groove component 21 is connected with the air supply component 22, the three hanging components 23 are respectively installed on the three dyeing groove components 21, and the front and rear ends of the dyeing groove component 21 are connected with the inner sides of the two table tops 12.

[0037] The dyeing tank component 21 comprises a dyeing tank body 211 and two groups of fixing frames 214, each group of fixing frames 214 is composed of two fixing frames 214 arranged symmetrically left and right, and the two groups of fixing frames 214 are fixedly installed on the front and rear sides of the upper end of the dyeing tank body 211, the front and rear sides of the dyeing tank body 211 are fixedly connected with the two table tops 12 respectively, the upper side of the side wall of the dyeing tank body 211 is provided with a liquid inlet 212, the lower side of the side wall of the dyeing tank body 211 is provided with a liquid outlet 213, a valve is fixedly arranged outside the liquid outlet 213, the dyeing tank bodies 211 of the three dyeing tank components 21 are arranged left and right and fixedly connected in sequence, and a through groove for cooperating with the upper hanging component 23 is arranged on the upper side of the fixing frame 214.

[0038] The ventilation component 22 comprises a ventilation pipe 221, three groups of ventilation branch pipes 222 and a plurality of nozzles 223, each group of ventilation branch pipes 222 is composed of two ventilation branch pipes 222, the two ends of the ventilation pipe 221 are respectively penetrated through the three dyeing tank bodies 211 and fixedly connected with the dyeing tank bodies 211 in a sealed manner, the three groups of ventilation branch pipes 222 are respectively fixedly connected in communication with the ventilation pipe 221 inside the three dyeing tank bodies 211, a plurality of nozzles 223 are fixedly arranged in communication on the upper side of the ventilation branch pipe 222, one end of the ventilation pipe 221 is connected in communication with a ventilation device, and a valve is fixedly arranged outside the other end of the ventilation pipe 221.

[0039] The upper hanging component 23 comprises a placing frame 231, a plurality of clamping columns 232 and two hangers 233, the plurality of clamping columns 232 are fixedly installed on the front and rear ends of the placing frame 231, the clamping columns 232 are clamped with the through groove on the upper side of the fixing frame 214 and the fixing frame 214, the two hangers 233 are symmetrically arranged on the placing frame 231, the hanger 233 is composed of an installation column and a plurality of upper hanging columns, and the plurality of hanging columns are fixedly installed on the outer side of the installation column in uniform distribution.

[0040] The mobile drainage assembly 31 comprises four fixed plates 311, a motor 312, a sliding rod 313, a threaded rod 314, a drainage chute plate 315 and two liquid collecting tanks 316. The four fixed plates 311 are respectively fixedly installed on the left and right sides of the two table tops 12. The motor 312 is fixedly installed on the outside of one fixed plate 311. The sliding rod 313 and the threaded rod 314 are respectively located between the two fixed plates 311 connected with the same table top 12. The sliding rod 313 is fixedly connected with the fixed plate 311. The threaded rod 314 is rotatably connected with the fixed plate 311. The output end of the motor 312 is fixedly connected with one end of the threaded rod 314. The sliding rod 313 is slidably connected with the drainage chute plate 315. The threaded rod 314 is threadedly connected with the drainage chute plate 315. The drainage chute plate 315 is located above the dyeing tank body 211. The upper end of the drainage chute plate 315 is provided with a through groove. The through groove of the upper end of the drainage chute plate 315 is gradually lowered from the middle to the front and rear sides. The drainage chute plate 315 is provided with a limiting component 32 above. The two liquid collecting tanks 316 are respectively fixedly installed on the outer sides of the two table tops 12. The inner bottom of the liquid collecting tank 316 is obliquely arranged. The sidewall of the lower end of the inner bottom of the liquid collecting tank 316 is provided with an opening for drainage.

[0041] The limiting component 32 comprises a mounting plate 321, a rotating seat 322, a rudder 323 and a limiting frame 324. The mounting plate 321 is fixedly installed on the upper end of the drainage chute plate 315. The rotating seat 322 is fixedly installed on the upper end of the mounting plate 321. The rudder 323 is fixedly installed on one side of the rotating seat 322. The output end of the rudder 323 is fixedly connected with the limiting frame 324. One end of the limiting frame 324 is rotatably installed on the inner side of the rotating seat 322. The other end of the limiting frame 324 is fixedly provided with two limiting columns matched with the lower end of the mounting column of the hanger 233. The two limiting columns are symmetrically and obliquely arranged.

[0042] The aluminum alloy multi-color anodic oxidation dyeing device is used normally, the hanger 233 is hung on the placing rack 231, the aluminum alloy material is hung on the hanger 233, a plurality of different colors of dyes are conveyed from the liquid inlet 212 to the inside of the different dyeing tank bodies 211, the feeding device drives the placing rack 231 to move and place in the inside of the dyeing tank body 211, the clamping column 232 is clamped and limited with the fixed frame 214, the ventilation equipment is started, the ventilation equipment conveys air to the ventilation branch pipe 222 through the ventilation pipe 221, and then the air is discharged through the nozzle 223 to drive the dyes to turn and mix, after the dyeing is completed, the feeding device drives the placing rack 231 to rise, the placing rack 231 drives the hanger 233 to move, the hanger 233 drives the aluminum alloy material to move, the residual dyes on the aluminum alloy material drop, the motor 312 is started, the motor 312 drives the threaded rod 314 to rotate, the threaded rod 314 drives the liquid discharge chute plate 315 to move along the slide rod 313, when the liquid discharge chute plate 315 moves to the lower side of the aluminum alloy material, the residual dyes of the aluminum alloy material drop to the upper side of the liquid discharge chute plate 315 and flow to the liquid collecting groove 316 through the through groove of the liquid discharge chute plate 315 to be collected and discharged, the steering wheel 323 is started, the steering wheel 323 drives the limiting frame 324 to rotate along the rotating seat 322, the limiting column at one end of the limiting frame 324 limits the lower side of the mounting column of the hanger 233, the feeding device and the motor 312 are started synchronously, the feeding device drives the aluminum alloy material to move and discharge, the placing rack 231 drives the liquid discharge chute plate 315 to move with the aluminum alloy material, through the arrangement of the limiting frame 324, the aluminum alloy material can be limited during movement, so that the aluminum alloy material is prevented from shaking and falling due to the action of inertia. Through the cooperation of the ventilation pipe 221 and the ventilation branch pipe 222, the dyes in the plurality of dyeing tank bodies 211 can be turned and stirred at the same time, resources are saved, and the dyeing effect of the dyes is improved.

[0043] The above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced equivalently; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An apparatus for multi-color anodizing dyeing of aluminum alloys, comprising a frame (1), characterized in that: It also comprises a multi-color dyeing assembly (2) and a pollution prevention assembly (3), the frame (1) is provided with the multi-color dyeing assembly (2) for cooperating with the feeding equipment to carry out multi-color dyeing treatment on the aluminum alloy material and the pollution prevention assembly (3) for avoiding mutual pollution between the multiple dyes; The pollution prevention assembly (3) comprises a moving drainage assembly (31) for following the movement of the aluminum alloy material to collect the liquid drops and two limiting components (32) for limiting the aluminum alloy material to avoid shaking, the moving drainage assembly (31) is connected with the frame (1) and the multi-color dyeing assembly (2), and the two limiting components (32) are symmetrically arranged on the upper end of the moving drainage assembly (31).

2. The apparatus for multi-color anodizing dyeing of aluminum alloy according to claim 1, wherein The frame (1) comprises a support (11) and two table tops (12), the two table tops (12) are symmetrically arranged and fixedly installed on the upper end of the support (11), and the multi-color dyeing assembly (2) is installed between the two table tops (12), and the table top (12) is connected with the moving drainage assembly (31).

3. The apparatus for multi-color anodizing dyeing of aluminum alloy according to claim 2, wherein The multi-color dyeing assembly (2) comprises three dyeing tank components (21), an aeration component (22) and three upper hanging components (23), the three dyeing tank components (21) are arranged in sequence and connected in left and right directions, the dyeing tank component (21) is connected with the aeration component (22), the three upper hanging components (23) are respectively installed on the three dyeing tank components (21), and the front and rear ends of the dyeing tank component (21) are connected with the inner sides of the two table tops (12).

4. The apparatus for multi-color anodizing dyeing of aluminum alloy according to claim 3, wherein The dyeing tank component (21) comprises a dyeing tank body (211) and two groups of fixing frames (214), each group of fixing frames (214) is composed of two fixing frames (214) which are symmetrically arranged in left and right directions, the two groups of fixing frames (214) are respectively fixedly installed on the front and rear sides of the upper end of the dyeing tank body (211), the front and rear sides of the dyeing tank body (211) are fixedly connected with the two table tops (12), the upper side of the side wall of the dyeing tank body (211) is provided with a liquid inlet (212), the lower side of the side wall of the dyeing tank body (211) is provided with a liquid outlet (213), a valve is fixedly arranged outside the liquid outlet (213), the dyeing tank bodies (211) of the three dyeing tank components (21) are arranged in sequence and fixedly connected in left and right directions, and a through groove for cooperating with the upper hanging component (23) is formed in the upper side of the fixing frame (214).

5. The apparatus for multi-color anodizing dyeing of aluminum alloy according to claim 4, wherein The aeration component (22) comprises an aeration pipe (221), three groups of aeration branch pipes (222) and a plurality of nozzles (223), each group of aeration branch pipes (222) is composed of two aeration branch pipes (222), the two ends of the aeration pipe (221) respectively penetrate through the three dyeing tank bodies (211) and are sealingly and fixedly connected with the dyeing tank bodies (211), the three groups of aeration branch pipes (222) are respectively located inside the three dyeing tank bodies (211) and are fixedly connected in communication with the aeration pipe (221), a plurality of nozzles (223) are uniformly and fixedly arranged in communication on the upper side of the aeration branch pipe (222), one end of the aeration pipe (221) is connected in communication with the aeration equipment, and a valve is fixedly arranged outside the other end of the aeration pipe (221).

6. The apparatus for multi-color anodizing dyeing of aluminum alloy according to claim 4, wherein The upper hanging part (23) comprises a placing rack (231), a plurality of clamping columns (232) and two hangers (233), the plurality of clamping columns (232) are fixedly installed at the front and rear ends of the placing rack (231), the clamping columns (232) are clamped with the upper through slot of the fixing frame (214), and the two hangers (233) are symmetrically arranged on the placing rack (231) and are hung on the placing rack (231), the hanger (233) is composed of an installation column and a plurality of upper hanging columns, and the plurality of hanging columns are uniformly distributed and fixedly installed on the outer side of the installation column.

7. The apparatus for multi-color anodizing dyeing of aluminum alloy according to claim 6, wherein The mobile drainage assembly (31) comprises four fixed plates (311), a motor (312), a sliding rod (313), a threaded rod (314), a drainage chute plate (315) and two liquid collecting tanks (316), the four fixed plates (311) are fixedly installed on the left and right sides of the two table tops (12) respectively, the motor (312) is fixedly installed on the outer side of one of the fixed plates (311), the sliding rod (313) and the threaded rod (314) are located between the two fixed plates (311) connected with the same table top (12), the sliding rod (313) is fixedly connected with the fixed plate (311), the threaded rod (314) is rotatably connected with the fixed plate (311), the output end of the motor (312) is fixedly connected with one end of the threaded rod (314), the sliding rod (313) is slidably connected with the drainage chute plate (315), the threaded rod (314) is threadedly connected with the drainage chute plate (315), the drainage chute plate (315) is located above the dyeing tank main body (211), a through slot is formed in the upper end of the drainage chute plate (315), the through slot in the upper end of the drainage chute plate (315) is gradually lowered from the middle to the front and rear sides, a limiting part (32) is installed above the drainage chute plate (315), and the two liquid collecting tanks (316) are fixedly installed on the outer sides of the two table tops (12), respectively, the inner bottom of the liquid collecting tank (316) is inclined, and the sidewall of the lower end of the inner bottom of the liquid collecting tank (316) is provided with an opening for drainage.

8. The apparatus for multi-color anodizing dyeing of aluminum alloy according to claim 7, wherein The limiting part (32) comprises an installation plate (321), a rotating seat (322), a rudder (323) and a limiting frame (324), the installation plate (321) is fixedly installed on the upper end of the drainage chute plate (315), the rotating seat (322) is fixedly installed on the upper end of the installation plate (321), the rudder (323) is fixedly installed on one side of the rotating seat (322), the output end of the rudder (323) is fixedly connected with the limiting frame (324), one end of the limiting frame (324) is rotatably installed on the inner side of the rotating seat (322), and the other end of the limiting frame (324) is fixedly provided with two limiting columns in cooperation with the lower end of the installation column of the hanger (233), and the two limiting columns are symmetrically and obliquely arranged.

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