Conductive oxidation tank in liquid for full-automatic production line of anodized aluminum coils

Abstract

The utility model belongs to the technical field of anodic aluminum oxide roll production equipment, and discloses an in-liquid conductive oxidation tank for a full-automatic production line of anodic aluminum oxide rolls, which comprises an oxidation tank body, an anodic oxidation power supply and electrolyte positioned in the oxidation tank body, and an upper conductive plate and a lower conductive plate which are distributed up and down are arranged in the oxidation tank body. The upper current-conducting plate and the lower current-conducting plate are submerged in the electrolyte, the upper current-conducting plate and the lower current-conducting plate are electrically connected with an anodic oxidation power supply respectively, and when the upper current-conducting plate and the lower current-conducting plate are electrified, the upper current-conducting plate and the lower current-conducting plate form a conductive loop with the electrolyte, so that an aluminum coil located between the upper current-conducting plate and the lower current-conducting plate is subjected to anodic oxidation process treatment; the two electrodes originally distributed in the positive electrode groove and the negative electrode groove are integrated into the same oxidation groove to act together, an electric loop is directly formed in the same oxidation groove, current directly acts on the continuously moving aluminum coil, circuit loss is reduced, equipment investment is reduced, and the device has the advantages of being energy-saving, environment-friendly and high in production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of anodized aluminum coil production equipment, specifically relating to a liquid conductive oxidation tank in a fully automatic anodized aluminum coil production line. Background Art

[0002] To enhance the surface properties of ordinary aluminum coils and better adapt them to various application scenarios, the current popular and common method is to use anodizing to form an aluminum oxide film on the surface of ordinary aluminum coils. The aluminum oxide film gives ordinary aluminum coils high strength, good bending resistance, good wear resistance, good corrosion resistance, excellent high-temperature performance, and high insulation, thus providing more effective protection for vehicle license plates in various special application environments.

[0003] Existing liquid-conductive anodizing tanks achieve anodizing by continuously moving aluminum coils between positive and negative electrode tanks. The positive electrode tank is connected to the positive terminal of the power supply, and the negative electrode tank is connected to the negative terminal. The main drawbacks are that the conductivity of the liquid in the positive electrode tank causes voltage and current losses, and the rapid temperature rise of the tank damages the oxide film, which is not conducive to the formation of the oxide film and reduces production efficiency. To solve the above problems, it is necessary to develop a liquid-conductive anodizing tank for a fully automated production line of anodized aluminum coils. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an energy-saving, environmentally friendly, and highly efficient fully automated production line for anodized aluminum coils with a liquid conductive oxidation tank.

[0005] The purpose of this utility model is achieved as follows: A conductive oxidation tank in a liquid for a fully automated production line for anodizing aluminum coils includes an oxidation tank body, an anodizing power supply, and an electrolyte located within the oxidation tank body. An upper conductive plate and a lower conductive plate are arranged vertically within the oxidation tank body and are submerged in the electrolyte. The upper and lower conductive plates are electrically connected to two electrodes of the anodizing power supply, respectively. When the upper and lower conductive plates are energized, they form a conductive circuit with the electrolyte, thereby performing anodizing processing on the aluminum coil located between them.

[0006] Preferably, the upper conductive plate and the lower conductive plate are either a single conductive plate or two array structures formed by arranging a plurality of upper conductive plates and a plurality of lower conductive plates at a certain distance apart.

[0007] When the upper conductive plate and the lower conductive plate are each a single conductive plate, one side of the upper conductive plate extends upward in whole or at intervals, bypassing the side wall of the oxidation tank body and connecting to copper busbar A. The other side of the lower conductive plate extends upward at intervals, bypassing the side wall of the oxidation tank body and connecting to copper busbar B. Copper busbar A and copper busbar B are respectively connected to the positive and negative terminals or the negative and positive terminals of the anodizing power supply.

[0008] When the upper conductive plate and the lower conductive plate are two array structures formed by arranging a plurality of upper conductive plates and a plurality of lower conductive plates at a certain distance, one side of each of the plurality of upper conductive plates extends upward and bypasses the side wall of the oxidation tank body and is connected to copper busbar A, and the other side of each of the plurality of lower conductive plates extends upward and bypasses the side wall of the oxidation tank body and is connected to copper busbar B. Copper busbar A and copper busbar B are respectively connected to the positive and negative terminals or the negative and positive terminals of the anodizing power supply.

[0009] Preferably, the upper conductive plate and the lower conductive plate are made of acid- and corrosion-resistant and conductive materials such as lead, titanium, titanium alloy, aluminum, aluminum alloy, tantalum, tantalum alloy, graphite, or brass.

[0010] Preferably, the anodizing power supply is a DC anodizing power supply, an AC anodizing power supply, or a pulsed current anodizing power supply.

[0011] Preferably, the oxidation tank body is provided with two guide rollers at both ends of the upper conductive plate and the lower conductive plate, and the lower ends of the two guide rollers are located between the upper conductive plate and the lower conductive plate.

[0012] Preferably, the lower end of the upper conductive plate is provided with a bracket that is mounted between two side walls of the oxidation tank body.

[0013] Preferably, an array of idlers is provided between the two sidewalls of the oxidation tank body, located between the upper conductive plate and the lower conductive plate. The array of idlers consists of a plurality of idlers arranged sequentially, and the upper end of the array of idlers is approximately flush with the lower end of the two guide rollers.

[0014] Preferably, the two guide rollers of the same specifications are symmetrically arranged in the body of the oxidation tank at both ends of the upper conductive plate and the lower conductive plate, with the lower ends of the two guide rollers approximately located at the center between the upper conductive plate and the lower conductive plate.

[0015] Preferably, the lower end of the lower conductive plate is provided with a plurality of columns located at the bottom of the oxidation tank body.

[0016] Due to the adoption of the above technical solutions, the beneficial effects of this utility model are as follows: Based on the existing oxidation tank structure, this utility model sets up upper and lower conductive plates distributed vertically in the same oxidation tank, integrating the two electrodes originally distributed in the positive and negative electrode tanks into the same oxidation tank to work together, directly forming an electrical circuit in the same oxidation tank. The current directly acts on the continuously moving aluminum coil, reducing circuit losses, reducing equipment investment, reducing electrolyte consumption, saving energy and protecting the environment. At the same time, it can slow down the rate of temperature rise in the tank, reduce damage to the oxide film, and promote the rapid formation of the oxide film, thereby improving production efficiency. In summary, this utility model has the advantages of energy saving, environmental protection, and high production efficiency. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the first embodiment of this utility model.

[0018] Figure 2 This is a front view structural diagram of the second embodiment of this utility model.

[0019] Figure 3 This is a schematic diagram of the end cross-sectional structure of this utility model.

[0020] Figure 4 This is a partial front view structural schematic diagram of the guide roller, upper conductive plate, lower conductive plate, etc., according to the second embodiment of this utility model.

[0021] Figure 5 This is a partial top view of the guide roller, upper conductive plate, lower conductive plate, etc., according to the second embodiment of this utility model.

[0022] Figure 6 yes Figure 5 A partial top view of the structure after removing the upper conductive plate and bracket.

[0023] In the diagram: 1. Oxidation tank body; 2. Lower conductive plate; 3. Aluminum coil; 4. Inlet roller; 5. Guide roller; 6. Upper conductive plate; 7. Electrolyte; 8. Outlet roller; 9. Anodizing power supply; 10. Copper busbar A; 11. Bracket; 12. Copper busbar B; 13. Support roller; 14. Column. DETAILED DESCRIPTION

[0024] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, this utility model provides a conductive oxidation tank in a liquid for a fully automated production line for anodizing aluminum coils. The tank includes an oxidation tank body 1, an anodizing power supply 9, and an electrolyte 7 located within the oxidation tank body 1. The oxidation tank body 1 is provided with an upper conductive plate 6 and a lower conductive plate 2 distributed vertically. The upper conductive plate 6 and the lower conductive plate 2 are submerged in the electrolyte 7. The upper conductive plate 6 and the lower conductive plate 2 are electrically connected to the two electrodes of the anodizing power supply 9, respectively. When the upper conductive plate 6 and the lower conductive plate 2 are energized, they form a conductive circuit with the electrolyte 7, thereby performing anodizing processing on the aluminum coil 3 located between them.

[0026] Specifically, this utility model provides two implementation methods: the upper conductive plate 6 and the lower conductive plate 2 are each a single conductive plate; or, the upper conductive plate 6 and the lower conductive plate 2 are each two array structures formed by arranging a plurality of upper conductive plates 6 and a plurality of lower conductive plates 2 at a certain distance apart.

[0027] like Figure 1 In the first embodiment shown, when the upper conductive plate 6 and the lower conductive plate 2 are both integral conductive plates, one side of the upper conductive plate 6 extends upwards, either integrally or intermittently, around the side wall of the oxidation tank body 1, and connects to the copper busbar A10. The other side of the lower conductive plate 2 extends upwards intermittently, around the side wall of the oxidation tank body 1, and connects to the copper busbar B. The copper busbars A10 and B12 are respectively connected to the positive and negative terminals or the negative and positive terminals of the anodizing power supply 9. The lower conductive plate 2 can only extend upwards intermittently to leave space for the subsequent installation of the idler roller 13.

[0028] like Figure 2 In the second embodiment shown, when the upper conductive plate 6 and the lower conductive plate 2 are two array structures formed by arranging a plurality of upper conductive plates 6 and a plurality of lower conductive plates 2 at a certain distance, one side of each of the plurality of upper conductive plates 6 extends upward and bypasses the side wall of the oxidation tank body 1 and is connected to the copper busbar A10, and the other side of each of the plurality of lower conductive plates 2 extends upward and bypasses the side wall of the oxidation tank body 1 and is connected to the copper busbar B12. The copper busbar A10 and the copper busbar B12 are respectively connected to the positive and negative terminals or the negative and positive terminals of the anodizing power supply.

[0029] In the two embodiments described above, the upper conductive plate 6 and the lower conductive plate 2 extend upward along the two side walls on both sides of the oxidation tank body 1, respectively. When the upper conductive plate 6 is connected to the positive terminal of the power supply through the copper busbar A, the lower conductive plate 2 is connected to the negative terminal of the power supply through the copper busbar B12. Conversely, when the upper conductive plate 6 is connected to the negative terminal of the power supply through the copper busbar A, the lower conductive plate 2 is connected to the positive terminal of the power supply through the copper busbar B12.

[0030] The upper conductive plate 6 and the lower conductive plate 2 are made of acid- and corrosion-resistant and conductive materials such as lead, titanium, titanium alloy, aluminum, aluminum alloy, tantalum, tantalum alloy, graphite or brass, with lead being preferred for its high cost-effectiveness.

[0031] The anodizing power supply 9 can be a DC anodizing power supply, an AC anodizing power supply, or a pulse current anodizing power supply. It is preferred to be a rectifier that is a DC anodizing power supply, which is convenient to use.

[0032] Two guide rollers 5 are provided at both ends of the upper conductive plate 6 and the lower conductive plate 2 inside the oxidation tank body 1. The lower ends of the two guide rollers 5 are located between the upper conductive plate 6 and the lower conductive plate 2, which are used to transport the aluminum coil 3 so that it can move continuously. At the same time, they help the aluminum coil 3 to be fully submerged in the electrolyte 7 and make the submerged part roughly in a plane, so as to ensure that the aluminum coil 3 remains stable and balanced during the anodizing process and the oxide film generated on the surface of the aluminum coil 3 has good overall uniformity.

[0033] The lower end of the upper conductive plate 6 is provided with a bracket 11 installed between two side walls inside the oxidation tank body 1 to support the upper conductive plate 6 and prevent it from sagging and tilting during use, thus affecting the anodizing effect.

[0034] An array of idlers is provided between the two side walls inside the oxidation tank body 1, located between the upper conductive plate 6 and the lower conductive plate 2. The idler array consists of a number of idlers 13 arranged in sequence. The idlers 13 are staggered from the upward extension of the lower conductive plate 2. The upper end of the idler array is roughly flush with the lower end of the two guide rollers 5, which is used to support and assist the guide rollers 5 in completing the conveying of the aluminum coil 3, and can make the stability and balance of the aluminum coil 3 better during continuous conveying.

[0035] Two guide rollers 5 of the same specifications are symmetrically arranged inside the oxidation tank body 1 at both ends of the upper conductive plate 6 and the lower conductive plate 2. The lower ends of the two guide rollers 5 are approximately located at the center position between the upper conductive plate 6 and the lower conductive plate 4. That is, the aluminum coil 3 that moves continuously during the anodizing process is always approximately located on the center plane between the upper conductive plate 6 and the lower conductive plate 2, resulting in good process treatment effect.

[0036] The lower conductive plate 2 is provided with multiple columns 14 located at the bottom of the oxidation tank body 1 to support the lower conductive plate 2 and prevent it from sagging and tilting during use, which would affect the anodizing effect.

[0037] In practice, the oxidation tank body 1, guide roller 5, bracket 11, idler roller 13, and column 14 are insulators.

[0038] After the above installation is completed, this utility model can be put into use. First, turn on the rectifier (i.e., the anodizing power supply 9), and energize the upper conductive plate 6 and the lower conductive plate 2. Then, the aluminum coil 3 to be anodized is introduced into the anodizing tank body 1 through the inlet roller 4. It is pressed down by the two guide rollers 5 located at both ends of the anodizing tank body 1 and submerged in the electrolyte 7. The energized upper conductive plate 6 and lower conductive plate 2 continuously anodize the moving aluminum coil 3. The processed aluminum coil 3 is discharged from the anodizing tank body 1 through the outlet roller 8. During this period, the electrolyte 7 flows through the externally configured cooling unit for circulating cooling.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A conductive oxidation tank in a liquid for a fully automated production line for anodizing aluminum coils, comprising an oxidation tank body, an anodizing power supply, and an electrolyte located within the oxidation tank body, characterized in that: The oxidation tank body is provided with an upper conductive plate and a lower conductive plate distributed vertically. The upper conductive plate and the lower conductive plate are submerged in the electrolyte. The upper conductive plate and the lower conductive plate are electrically connected to the two electrodes of the anodizing power supply, respectively. When the upper conductive plate and the lower conductive plate are energized, they form a conductive circuit with the electrolyte, thereby performing anodizing process on the aluminum coil located between them.

2. The conductive oxidation tank in the liquid of the fully automated production line for anodized aluminum coils according to claim 1, characterized in that: The upper conductive plate and the lower conductive plate are either a single conductive plate or two array structures formed by arranging multiple upper conductive plates and multiple lower conductive plates at a certain distance apart. When the upper conductive plate and the lower conductive plate are each a single conductive plate, one side of the upper conductive plate extends upward in whole or at intervals, bypassing the side wall of the oxidation tank body and connecting to copper busbar A. The other side of the lower conductive plate extends upward at intervals, bypassing the side wall of the oxidation tank body and connecting to copper busbar B. Copper busbar A and copper busbar B are respectively connected to the positive and negative terminals or the negative and positive terminals of the anodizing power supply. When the upper conductive plate and the lower conductive plate are two array structures formed by arranging a plurality of upper conductive plates and a plurality of lower conductive plates at a certain distance, one side of each of the plurality of upper conductive plates extends upward and bypasses the side wall of the oxidation tank body and is connected to copper busbar A, and the other side of each of the plurality of lower conductive plates extends upward and bypasses the side wall of the oxidation tank body and is connected to copper busbar B. Copper busbar A and copper busbar B are respectively connected to the positive and negative terminals or the negative and positive terminals of the anodizing power supply.

3. The conductive oxidation tank in the liquid of the fully automated production line for anodized aluminum coils according to claim 1, characterized in that: The upper conductive plate and the lower conductive plate are made of acid- and corrosion-resistant and conductive materials such as lead, titanium, titanium alloy, aluminum, aluminum alloy, tantalum, tantalum alloy, graphite, or brass.

4. The conductive oxidation tank in the liquid of the fully automated production line for anodized aluminum coils according to claim 1, characterized in that: The anodic oxidation power supply is a DC anodic oxidation power supply, an AC anodic oxidation power supply, or a pulsed current anodic oxidation power supply.

5. The conductive oxidation tank in the liquid of the fully automated production line for anodizing aluminum coils according to any one of claims 1 to 4, characterized in that: The oxidation tank body is provided with two guide rollers at both ends of the upper conductive plate and the lower conductive plate, and the lower ends of the two guide rollers are located between the upper conductive plate and the lower conductive plate.

6. The conductive oxidation tank in the liquid of the fully automated production line for anodized aluminum coils according to claim 5, characterized in that: The lower end of the upper conductive plate is provided with a bracket that is mounted between two side walls of the oxidation tank body.

7. The conductive oxidation tank in the liquid of the fully automated production line for anodized aluminum coils according to claim 5, characterized in that: An array of idlers is provided between the two side walls of the oxidation tank body, located between the upper conductive plate and the lower conductive plate. The array of idlers consists of a number of idlers arranged in sequence, and the upper end of the array of idlers is approximately flush with the lower end of the two guide rollers.

8. The conductive oxidation tank in the liquid of the fully automated production line for anodized aluminum coils according to claim 7, characterized in that: Two guide rollers of the same specifications are symmetrically arranged within the oxidation tank body at both ends of the upper conductive plate and the lower conductive plate, with the lower ends of the two guide rollers approximately located at the center between the upper conductive plate and the lower conductive plate.

9. The conductive oxidation tank in the liquid of the fully automated production line for anodized aluminum coils according to claim 5, characterized in that: The lower end of the lower conductive plate is provided with multiple columns located at the bottom of the oxidation tank body.

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