Aluminum plate coil stock anodic oxidation production line

Abstract

The aluminum plate coil stock anodic oxidation production line comprises a discharging mechanism, a first processing unit, a conductive oxidation unit, a second processing unit and a post-processing unit which are sequentially arranged, the conductive oxidation unit comprises a conductive oxidation device, and the conductive oxidation device comprises a conductive groove device and an oxidation groove device; the aluminum plate is conducted in the conductive groove device through liquid in the conductive groove device, so that the aluminum plate is subjected to anodic oxidation treatment in the oxidation groove device, and a water retaining and drainage device is arranged between the conductive groove device and the oxidation groove device. Conductivity and oxidation of the aluminum plate are separated, so that the oxidation effect of the aluminum plate is better, the production quality of the aluminum plate is improved, and meanwhile, the oxidation efficiency of the coiled aluminum plate can be improved.

Description

Technical Field

[0001] This invention relates to the field of conductive oxidation technology, and more specifically to an anodizing production line for aluminum sheet coils. Background Technology

[0002] Anodized aluminum sheets have rich colors and a delicate metallic texture. After coloring treatment, the surface colors are rich and realistic, which has a good decorative effect. This makes anodized aluminum sheets widely used in many fields such as construction, home appliances, and transportation. The anodizing treatment can form a dense oxide film on the surface of the aluminum sheet. This film can significantly improve the corrosion resistance and surface hardness of the aluminum sheet, thereby extending its service life.

[0003] For example, Chinese patent document No. 201520400683.X, published on September 30, 2015, discloses an aluminum plate surface anodizing production line, which includes a feeding platform, an oil removal unit, a water washing unit and an oxidation unit arranged in sequence. Transition rollers are provided between the feeding platform and the oil removal unit, between the oil removal unit and the water washing unit, and between the water washing unit and the oxidation unit. The aluminum plate surface anodizing production line with this structure is a continuous production line process, which effectively improves the production efficiency of aluminum plate surface anodizing treatment.

[0004] The aforementioned literature utilizes the continuous arrangement of the feeding platform, degreasing unit, water washing unit, and oxidation unit to solve the problem of low production efficiency in the prior art, realizing continuous production line production of aluminum plate surface anodizing treatment to improve overall production efficiency. However, in the electrolysis chamber of the oxidation unit, the external circuit anode is connected to the conductive plate, and the cathode is connected to the electrolyte. Since the conductive oxidation of the aluminum plate is carried out in the same electrolysis chamber, this can easily affect the oxidation effect of the aluminum plate. Summary of the Invention

[0005] The purpose of this invention is to provide an aluminum sheet coil anodizing production line, which improves the aluminum sheet oxidation effect by separating the conductivity and oxidation of the aluminum sheet, thereby improving the aluminum sheet production quality and increasing the oxidation efficiency of the coil aluminum sheet.

[0006] The present invention provides the following technical solution: an aluminum sheet coil anodizing production line, comprising a discharge mechanism, a first processing unit, a conductive oxidation unit, a second processing unit, and a post-processing mechanism arranged sequentially. The conductive oxidation unit includes a conductive oxidation device, which includes a conductive tank device and an oxidation tank device. The aluminum sheet is made conductive through the liquid in the conductive tank device, so that the aluminum sheet can be anodized in the oxidation tank device. A water blocking and drainage device is provided between the conductive tank device and the oxidation tank device.

[0007] The aforementioned aluminum sheet coil anodizing production line installs uncoated aluminum sheets on an unloading mechanism. The uncoated aluminum sheets are unwound by the unloading mechanism and sequentially enter a first processing unit, a conductive oxidation unit, a second processing unit, and a post-processing unit. The aluminum sheets undergo pre-treatment in the first processing unit, and are oxidized by the conductive oxidation unit to form an oxide film on the surface of the aluminum sheets. Then, the aluminum sheets with the oxide film are post-processed by the second processing unit, and finally, they are wound up or cut by the post-processing unit. Therefore, in this invention, the coil aluminum sheets can be processed automatically, thereby improving the oxidation efficiency of the coil aluminum sheets.

[0008] Furthermore, electrolyte is injected into the conductive tank and the oxidation tank. As the aluminum plate passes through the conductive tank and the oxidation tank sequentially, the electrolyte in the conductive tank charges the aluminum plate, causing its surface to oxidize in the oxidation tank. In this invention, a water-blocking and drainage device is installed during the process of the aluminum plate entering the oxidation tank from the conductive tank. This device effectively drains the liquid flowing from the conductive tank and the oxidation tank, preventing liquid cross-contamination between them and avoiding short circuits between the cathode and anode. This allows electrons to be transferred through the aluminum plate to the oxidation tank, resulting in better oxidation of the aluminum plate within the oxidation tank, thus improving oxidation efficiency and reducing equipment power consumption.

[0009] Furthermore, the discharge mechanism includes an uncoiling trolley, and the first processing unit includes a leveling machine, a first tension conveyor, a grinding machine, a first overflow washing device, an oil removal device, a second overflow washing device, an alkali leaching device, a third overflow washing device, a neutralization device, a fourth overflow washing device, and a second tension conveyor, arranged sequentially.

[0010] The above setup involves using an uncoiling trolley to unwind and transport the uncoiled aluminum sheet to the first processing unit, thus achieving smooth unwinding and transport of the uncoiled aluminum sheet. In the first processing unit, a leveling machine levels the aluminum sheet, while a first and second tension clamping machine clamps and transports the aluminum sheet, ensuring smooth transport. A grinding machine polishes the surface of the aluminum sheet, followed by cleaning with first, second, third, and fourth overflow washing devices. An oil removal device removes oil from the surface, an alkaline immersion device performs alkaline immersion treatment, and a neutralization device neutralizes the alkaline-immersed aluminum sheet. This first processing unit is for pre-treatment of the aluminum sheet, enabling better anodizing on its surface.

[0011] Furthermore, the conductive tank device includes a first conductive tank, and the oxidation tank device includes a first oxidation tank; the first conductive tank and the first oxidation tank are arranged sequentially in the horizontal direction. A first channel is provided on the side of the first conductive tank near the first oxidation tank, and a second channel is provided on the side of the first oxidation tank near the first conductive tank. The water-blocking and drainage device includes a first drainage channel, a first water-pressing roller mechanism, a second drainage channel, and a second water-pressing roller mechanism. The first drainage channel is connected to the first conductive tank and located outside the first channel. The first water-pressing roller mechanism is disposed in the first water-pressing roller groove and includes one or more first water-pressing roller groups. Each first water-pressing roller group includes upper and lower... The system comprises two first water-pressing rollers, with a first conveying channel between the two first water-pressing rollers in the first water-pressing roller group; a second discharge trough connected to a second conductive trough and located outside the second channel; a second water-pressing roller mechanism disposed within the second discharge trough; the second water-pressing roller mechanism includes one or more second water-pressing roller groups, each second water-pressing roller group including two second water-pressing rollers disposed vertically, with a second conveying channel between the two second water-pressing rollers in the second water-pressing roller group; the first conveying channel and the second conveying channel are horizontally disposed; a third channel is disposed on the side of the first discharge trough near the first oxidation tank, and a fourth channel is disposed on the side of the second discharge trough near the first conductive trough.

[0012] Before use, electrolyte is injected into the first conductive tank and the first oxidation tank, ensuring the liquid level is higher than the first and second channels. The aluminum plate is then passed sequentially through the first conductive tank, the first channel, the first conveying channel, the third channel, the fourth channel, the second conveying channel, the second channel, and the first oxidation tank. During this process, the liquid in the first conductive tank electrifies the aluminum plate, causing its surface to oxidize in the first oxidation tank. As the aluminum plate moves from the first conductive tank into the first oxidation tank, the liquid level remains higher than in both the first and second channels, thus... The liquid in the conductive tank flows out from the first channel, and the liquid in the first oxidation tank flows out from the second channel. By setting up a first water-pressing roller group and a second water-pressing roller group, the first water-pressing roller group partially blocks the liquid flowing out from the first channel, and the second water-pressing roller group partially blocks the liquid flowing out from the second channel. This effectively prevents liquid cross-contamination between the first conductive tank and the first oxidation tank, avoids short circuits between the anode and cathode, and allows electrons to be transferred through the aluminum plate itself into the first oxidation tank. Therefore, the aluminum plate can be better oxidized in the first oxidation tank, thereby improving the oxidation effect.

[0013] Furthermore, the first water-pressing roller group is provided in two sets. One set of the first water-pressing roller group is located near the first conductive groove, and the other set of the first water-pressing roller group is located between the first water-pressing roller group near the first conductive groove and the second water-pressing roller mechanism. There is a first gap between the two sets of the first water-pressing roller group. The second water-pressing roller group is provided in two sets. One set of the second water-pressing roller group is located near the first oxidation groove, and the other set of the second water-pressing roller group is located between the second water-pressing roller group near the first oxidation groove and the first water-pressing roller mechanism. There is a second gap between the two sets of the second water-pressing roller group.

[0014] In the first water-pressing roller group, the central axis of the upper water-pressing roller is higher than the upper edge of the first channel, and the central axis of the lower water-pressing roller is lower than the lower edge of the first channel; in the second water-pressing roller group, the central axis of the upper water-pressing roller is higher than the upper edge of the second channel, and the central axis of the lower water-pressing roller is lower than the lower edge of the second channel.

[0015] The above setup, through the initial water pressure blocking by the first water pressure roller group near the first conductive tank, reduces the amount of liquid entering the space between the two sets of first water pressure roller groups. A second water pressure roller group then further blocks the liquid, allowing it to flow out through the first gap between the two sets of first water pressure roller groups. Similarly, the initial water pressure blocking by the second water pressure roller group near the first oxidation tank reduces the amount of liquid entering the space between the two sets of second water pressure roller groups. A second water pressure roller group then further blocks the liquid, allowing it to flow out through the first gap between the two sets of second water pressure roller groups. This effectively isolates the liquid between the first conductive tank and the first oxidation tank during the conveying and unwinding of the aluminum sheet.

[0016] Furthermore, a first replenishment channel is provided on the first conductive tank, and a first discharge channel is provided on the first discharge tank; a second replenishment channel is provided on the first oxidation tank, and a second discharge channel is provided on the second discharge tank; a first overflow port is provided on the side wall of the first conductive tank at a position higher than the first channel, and a second overflow port is provided on the side wall of the first oxidation tank at a position higher than the second channel.

[0017] In the above configuration, since the liquid level in the first conductive tank is higher than that in the first channel, and the liquid level in the first oxidation tank is higher than that in the second channel, some liquid in the first conductive tank will inevitably flow out through the first channel, and some liquid in the first oxidation tank will inevitably flow out through the second channel. Therefore, to ensure the liquid level in the first conductive tank and the first oxidation tank, a first replenishment channel and a second replenishment channel are provided to replenish the liquid in the first conductive tank and the first oxidation tank, respectively. In addition, by providing a first discharge channel and a second discharge channel, the liquid entering the first discharge channel can flow out through the first discharge channel in a timely manner, and the liquid entering the second discharge tank can flow out through the second discharge channel in a timely manner. By providing a first overflow port, when the liquid level in the first conductive tank is higher than the set liquid level, the liquid will flow out through the first overflow port. Similarly, by providing a second overflow port, when the liquid level in the first oxidation tank is higher than the set liquid level, the liquid will flow out through the second overflow port.

[0018] Furthermore, an anode electrode is provided on the bottom surface and / or inner wall of the first conductive tank, and a cathode electrode is provided on at least one side above and below the aluminum plate in the first oxide tank.

[0019] With the above setup, when cathode electrodes are set on one side above and below the first oxidation tank, the aluminum plate can be oxidized. When cathode electrodes are set on both the top and bottom sides of the aluminum plate in the first oxidation tank, double-sided aluminum plate oxidation can be performed.

[0020] Furthermore, the conductive tank device includes a second conductive tank and a first guiding device. First through channels are respectively provided on opposite sides of the second conductive tank. The first guiding device is disposed within the second conductive tank, and its lowest point is lower than the lower surface of the first through channel. The oxidation tank device includes a second oxidation tank and a second guiding device. Second through channels are respectively provided on opposite sides of the second oxidation tank. The second guiding device is disposed within the second oxidation tank, and its lowest point is lower than the lower surface of the second through channel. There is a gap between the second conductive tank and the second oxidation tank. The water-blocking and drainage device includes a third guiding device located within the gap. The highest point of the third guiding device is higher than the set liquid level in the second conductive tank and the second oxidation tank.

[0021] The above setup involves immersing the aluminum plate in the second conductive tank and the second oxidation tank respectively via the first and second guiding devices. Electricity is conducted to the aluminum plate through the liquid in the second conductive tank and the liquid in the second oxidation tank, thus oxidizing the aluminum plate. The higher third guiding device ensures that the aluminum plate at the water-blocking and drainage device is higher than the first or second through-channel. This creates a slope on both sides of the third guiding device, allowing liquid flowing from the second conductive tank and the second oxidation tank to drain through gaps. Therefore, the third guiding device effectively drains liquid from both the second guiding tank and the second oxidation tank, while also preventing liquid cross-contamination between the first and second guiding tanks, thus preventing short circuits between the cathode and anode. Electrons can then be transferred through the aluminum plate to the first oxidation tank, resulting in better oxidation of the aluminum plate in the second oxidation tank, thereby improving the oxidation effect and the quality of the aluminum plate production.

[0022] Furthermore, an anode electrode is provided on the bottom surface and / or side wall of the first conductive tank, and a cathode electrode is provided on at least one side above and below the aluminum plate in the second oxidation tank; the first guiding device is a first guiding roller, the second guiding device is a second guiding roller, and the third guiding device is a third guiding roller; a fourth guiding device is provided at the end of the second conductive tank away from the second oxidation tank, and the fourth guiding device is a fourth guiding roller; a fifth guiding device is provided at the end of the second oxidation tank away from the second conductive tank, and the fifth guiding device is a fifth guiding roller.

[0023] The above configuration, with cathode electrodes placed on one side (above and below) of the second oxidation tank, enables the oxidation of the aluminum plate. When cathode electrodes are placed on both sides of the aluminum plate within the second oxidation tank, double-sided oxidation is achieved, improving the uniformity of the oxidation and thus enhancing the overall oxidation effect. The fourth and fifth guide rollers further improve the guidance of the aluminum plate.

[0024] Furthermore, the second processing unit includes, in sequence, a fifth overflow washing device, a third tension conveyor, a sixth overflow washing device, a dyeing device, a seventh overflow washing device, a sealing device, an eighth overflow washing device, a hot air drying device, a dryer, and a fourth tension conveyor.

[0025] The above setup, through post-processing such as washing, conveying, dyeing, sealing, and drying, ensures that the oxidized aluminum plate meets the requirements for subsequent use.

[0026] Furthermore, the post-processing unit is a winding unit or a cutting unit, wherein the cutting unit includes a buffer ditch, a finishing machine, a follow-up shearing machine, a conveyor belt, a main conveyor belt, a gantry robot, a lifting platform, and a discharge platform arranged in sequence.

[0027] The above setup allows the winding unit to rewind oxidized aluminum sheets. The cutting unit then cuts the oxidized aluminum sheets to a fixed length on the production line, facilitating subsequent processes. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention.

[0029] Figure 2 This is a schematic diagram of the material discharge mechanism.

[0030] Figure 3 This is a schematic diagram of the leveling machine.

[0031] Figure 4 This is a schematic diagram of the first tension clamping machine.

[0032] Figure 5 This is a schematic diagram of the structure of a four-stage heavy-duty grinding mill.

[0033] Figure 6 This is a schematic diagram of the structure of a four-stage heavy-duty grinding mill.

[0034] Figure 7 This is a schematic diagram of the structure of the first overflow water washing equipment.

[0035] Figure 8 This is a schematic diagram of the first embodiment of the conductive oxidation unit.

[0036] Figure 9 This is a schematic diagram of the cutting machine unit.

[0037] Figure 10 This is a schematic diagram of a second embodiment of the conductive oxidation unit.

[0038] Figure 11 This is a schematic diagram of the third embodiment of the conductive oxidation unit.

[0039] Figure 12 This is a schematic diagram of the fourth embodiment of the conductive oxidation unit.

[0040] Figure 13 This is a schematic diagram of the third guiding device in this invention. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0042] Example 1.

[0043] like Figure 1As shown, the present invention provides an aluminum sheet coil anodizing production line, including a discharge mechanism 01, a first processing unit 011, a conductive oxidation unit 116, a second processing unit 02 and a post-processing unit 117 arranged in sequence.

[0044] like Figure 2 As shown, the discharge mechanism 01 includes an uncoiling trolley, which includes a base 1b, a bearing device 1c, a discharge frame 1d, a material roller 1e, a discharge drive, and a pressing device 1f. The base 1b has a first receiving cavity 1b1 and a second receiving cavity 1b2 arranged sequentially from top to bottom. The first receiving cavity 1b1 has a cross-section larger than that of the second receiving cavity 1b2, forming a step 1b3 between them. The bearing device 1c includes a bearing frame 1c1, a bearing cylinder 1c2, a bearing bracket 1c3, and a bearing plate 1c4. The bearing frame 1c1 is mounted on the step 1b3. The cylinder body of the bearing cylinder 1c2 is mounted on the bearing frame 1c1, and the piston rod of the bearing cylinder 1c2 moves through the bearing frame 1c1. The bearing bracket 1c3 is mounted on the piston rod of the bearing cylinder, and the bearing plate 1c4 is mounted on the bearing bracket 1c3. The upper end of the bearing plate 1c4 is arc-shaped. The discharge frame 1d includes a discharge base frame 1d1 and a discharge support frame 1d2. Two discharge support frames 1d2 are arranged front and rear on the discharge base frame 1d1, forming a space between the two discharge support frames 1d2. The material roller 1e is mounted on the discharge support frame 1d2 via bearings. A discharge drive is mounted on one of the discharge support frames 1d2. The discharge drive can be a servo motor, etc. The output shaft of the discharge drive is connected to the material roller 1e. When the discharge drive is working, it can drive the material roller 1e to rotate. Of course, in this invention, the discharge drive may not be included. After the aluminum plate is mounted on the material roller 1e, the aluminum plate can be uncoiled by a tension clamping machine in the subsequent production line. The pressing device 1f includes a pressing base 1f1, a pressing support frame 1f2, a swing arm 1f3, and a pressing roller 1f4. The pressing base 1f1 is mounted on the discharge base frame 1d1, the pressing support frame 1f2 is mounted on the pressing base 1f1, one end of the swing arm 1f3 is mounted on the pressing support frame 1f2 via a bearing, and the pressing roller 1f4 is mounted on the free end of the swing arm 1f3 via a shaft and a bearing. In order to better control the swing of the swing arm, a servo motor or other drive that can drive the shaft connected to the swing arm to rotate is installed on the pressing support frame 1f2.

[0045] The aforementioned unloading mechanism first drives the swing arm 1f3 to swing, positioning the pressure roller 1f4 on one side of the material roller 1e. Then, the coiled aluminum plate 100 is mounted onto the material roller 1e. Next, the swing arm 1f3 is driven to swing, pressing the pressure roller 1f4 onto the non-aluminum plate. During operation, unwinding can be achieved by rotating the material roller 1e via a servo motor, or by using multiple subsequent tension clamps. During unwinding, the swing arm 1f3 ensures the pressure roller 1f4 maintains a constant pressure on the aluminum plate, preventing instability. Simultaneously, the bearing cylinder 1c2 drives the bearing frame 1c3 and bearing plate 1c4 to provide downward support to the coil, improving unwinding reliability.

[0046] like Figure 1 As shown, the first processing unit 01 includes a leveling machine 1001, a first tension conveyor 1002, a grinding machine, a first overflow washing device 1005, an oil removal device 1006, a second overflow washing device 1007, an alkali leaching device 1008, a third overflow washing device 1009, a neutralization device 1010, a fourth overflow washing device 1011, and a second tension conveyor 1012, arranged in sequence.

[0047] like Figure 3 As shown, the leveling machine 1001 includes a leveling frame 1001a, a lower leveling roller group, an upper leveling device, a lifting device, and a material guiding device.

[0048] The upper part of the leveling frame 1001a has a cavity 1001a1 that runs through the front and back, and the leveling crossbeam 1001a2 of the leveling frame 1001a is located above the cavity 1001a1.

[0049] The lower leveling roller group includes two or more lower leveling rollers 1001b arranged horizontally. The lower leveling rollers 1001b are mounted on the leveling frame 1001a via bearings. A lower leveling drive (not shown in the figure) is installed on the leveling frame 1001a to drive the lower leveling rollers 1001b to rotate in the same direction. The lower leveling drive can be a drive cylinder or a drive motor, etc. All lower leveling rollers 1001b can be driven to rotate in the same direction by an existing gear transmission system through one lower leveling drive, or each lower leveling roller 1001b can be associated with a lower leveling drive, and each lower leveling drive drives the corresponding lower leveling roller to rotate.

[0050] The upper leveling device includes an upper leveling drive cylinder 1001c, an upper leveling frame 1001d, and an upper leveling roller assembly. The upper leveling drive cylinder 1001c is mounted on a crossbeam 1001a2, and its piston rod extends into a cavity 1001a1. The upper leveling frame 1001d is located within the cavity 1001a1 and can slide within it. The upper leveling frame 1001d is hinged to the piston rod of the upper leveling cylinder. An upper leveling roller assembly is mounted on the lower end of the upper leveling frame 1001 via a bearing. The upper leveling roller assembly includes two or more rollers arranged horizontally. An upper leveling roller 1001e is mounted on an upper leveling frame 1001d via bearings. An upper leveling drive (not shown in the figure) is mounted on the upper leveling frame 1001d to drive the upper leveling rollers 1001e to rotate in the same direction. The upper leveling drive can be a drive cylinder or a drive motor, etc. One upper leveling drive can be used to drive all upper leveling rollers 1001e to rotate in the same direction using an existing gear transmission system. Alternatively, each upper leveling roller 1001e can have its own corresponding upper leveling drive, with each drive driving its respective upper leveling roller to rotate. In this invention, the upper leveling rollers are staggered with the adjacent lower leveling rollers.

[0051] The lifting device includes a lifting plate 1001f and a lifting cylinder 1001g. The lifting plate 1001f is hinged to the leveling frame 1001a, the cylinder body of the lifting cylinder 1001g is hinged to the leveling frame 1001a, and the piston rod of the lifting cylinder 1001g is hinged to the lifting plate 1001f. The lifting cylinder 1001g can drive the lifting plate 1001f to swing, and the lifting plate 1001f can lift the aluminum plate output from the discharge mechanism.

[0052] The material guiding device includes a material guiding frame 1001h, a lower material guiding roller 1001j, an upper material guiding cylinder 1001k, an upper material guiding slider 1001m, an upper material guiding roller 1001n, an upper material guiding limit rod 1001p, and an upper material guiding spring 1001q. The material guiding frame 1001h is mounted on a leveling machine frame 1001a. The lower material guiding roller 1001j is mounted on the material guiding frame 1001h via bearings. The upper material guiding cylinder 1001k is mounted on the upper end of the material guiding frame 1001h, with its piston rod extending into the cavity of the material guiding frame 1001h. The upper material guiding slider 1001m is slidably disposed within the cavity. The upper material guiding roller 1001n is mounted on the upper material guiding frame 1001h via bearings. On the guide slider 1001m, the upper guide limit rod 1001p slides through the connecting plate connected to the lower end of the piston rod of the upper guide cylinder. A limit head is provided at the upper end of the upper guide limit rod 1001p, and the lower end of the upper guide limit rod 1001p is connected to the upper guide slider 1001m. The upper guide spring 1001q is sleeved on the upper guide limit rod 1001p located between the connecting plate and the upper guide slider 1001m. This structure, through the upper guide cylinder 1001k via the connecting plate, upper guide limit rod, and upper guide spring, can drive the upper guide slider 1001m to move, thereby adjusting the gap between the upper guide roller and the lower guide roller to meet the needs of aluminum plates of different thicknesses. In addition, the upper guide spring can provide a spring force to the upper guide slider 1001m, thereby providing a downward spring force to the upper guide roller 1001n. In this way, the guiding of aluminum plates by the upper and lower guide rollers is more reliable.

[0053] like Figure 4As shown, the first tension clamping machine 1002 includes a tension frame 1002a, a lower tension roller 1002b, an upper tension cylinder 1002c, an upper tension slider 1002d, an upper tension roller 1002e, an upper tension limit rod 1002f, and an upper tension spring 1002g. The lower tension roller 1002b is mounted on the tension frame 1002a via bearings. The upper tension cylinder 1002c is mounted on the upper end of the tension frame 1002a. The piston rod of the upper tension cylinder 1002c extends into the slide groove of the tension frame 1002a. The upper tension slider 1002d is slidably disposed in the slide groove. The upper tension roller 1002e is mounted on the upper tension slider 1002d via bearings. The upper tension limiting rod 1002h slidably passes through the connecting block connected to the lower end of the piston rod of the upper tension cylinder. A limiting part is provided at the upper end of the upper tension limiting rod 1002h. The lower end of the upper tension limiting rod 1002h is connected to the upper tension slider 1002d. The upper tension spring 1002q is sleeved on the upper tension limiting rod 1002h located between the connecting block and the upper tension slider 1002d. This structure, via the upper tension cylinder 1002c, connecting block, upper tension limit rod, and upper tension spring, drives the upper tension slider 1002d to adjust the gap between the upper and lower tension rollers to suit the needs of aluminum plates of different thicknesses. Additionally, the upper tension spring provides tension to the upper tension slider 1002d, thus applying downward tension to the upper tension roller 1002e. This ensures more reliable clamping of the aluminum plate by the upper and lower tension rollers. To allow the lower tension roller 1002b and upper tension roller 1002e to rotate, a drive cylinder is installed on the tension frame to drive the lower tension roller, and a drive cylinder is installed on the upper tension slider to drive the upper tension roller. The clockwise rotation of the lower tension roller and the counterclockwise rotation of the upper tension roller drive the aluminum plate forward.

[0054] The grinding machine includes four lower heavy-duty grinding machines 1003 and four upper heavy-duty grinding machines 1004 arranged in sequence.

[0055] like Figure 5As shown, the four-stage heavy-duty grinding machine 1003 includes a first grinding machine frame 1003a, a lower grinding plate device, and an upper guide roller 1003b. The lower grinding plate device has four components arranged horizontally, each including a lower guide rail 1003c, a lower slider 1003d, a lower drive cylinder 1003e, a lower grinding plate roller 1003f, and a lower grinding plate drive. The lower guide rail 1003c is installed on the side of the first grinding plate frame 1003a. The lower slide block 1003d is slidably mounted on the lower guide rail 1003c. The lower drive cylinder 1003e is installed on the first grinding plate frame 1003a, and the piston rod of the lower drive cylinder 1003e is connected to the lower slide block 1003d. The lower grinding plate roller 1003f is mounted on the lower slide block 1003d via bearings. The lower grinding plate drive can be a motor, electric motor, etc. The lower grinding plate drive is mounted on the lower slide block and drives the lower grinding plate roller 1003f to rotate. Multiple horizontally arranged upper guide rollers 1003b are arranged on the first grinding plate frame 1003a above the lower grinding plate roller 1003f. When the aluminum plate passes between the upper guide rollers 1003b and the lower grinding plate roller 1003f, the upper guide rollers 1003b guide and limit the aluminum plate, and the rotating lower grinding plate roller 1003f polishes the lower surface of the aluminum plate. Because of the lower drive cylinder, the lower grinding roller can be moved up and down by driving the lower slider, thus meeting the needs of aluminum plates of different thicknesses.

[0056] like Figure 6 As shown, the four-stage heavy-duty grinding machine 1004 includes a second grinding frame 1004a, an upper grinding device, and a lower guide roller 1004b. The upper grinding device has four components arranged horizontally, each including an upper guide rail 1004c, an upper slider 1004d, an upper drive cylinder 1004e, an upper grinding roller 1004f, and an upper grinding drive. An upper guide rail 1004c is installed on the side of the second grinding plate frame 1004a. An upper slider 1004d is slidably mounted on the upper guide rail 1004c. An upper drive cylinder 1004e is installed on the second grinding plate frame 1004a, and the piston rod of the upper drive cylinder 1004e is connected to the upper slider 1004d. An upper grinding plate roller 1004f is mounted on the upper slider 1004d via bearings. The upper grinding plate drive can be a motor, electric motor, etc. The upper grinding plate drive is mounted on the upper slider and drives the upper grinding plate roller 1004f to rotate. Multiple horizontally arranged lower guide rollers 1004b are arranged on the second grinding plate frame 1004a above the upper grinding plate roller 1004f. When the aluminum plate passes between the lower guide rollers 1004b and the upper grinding plate roller 1004f, the lower guide rollers 1004b guide and limit the aluminum plate, and the rotating upper grinding plate roller 1004f polishes the upper surface of the aluminum plate. Because of the upper drive cylinder, the upper grinding roller can be moved up and down by driving the upper slider, thus meeting the needs of aluminum plates of different thicknesses.

[0057] like Figure 7 As shown, the first overflow washing device 1005 includes a washing frame 1005a, a washing tank 1005b, lower conveyor rollers 1005c, upper conveyor rollers 1005d, a lower nozzle assembly 1005e, and an upper nozzle assembly 1005f. The washing tank 1005b is mounted on the washing frame 1005a. Multiple lower conveyor rollers 1005c are arranged horizontally in sequence within the washing tank 1005b via bearings. The lower conveyor rollers 1005c can be passive rollers or active rollers driven by a drive motor, etc. Multiple upper conveyor rollers 1005d are arranged horizontally in sequence within the washing tank 1005b via bearings. The upper conveyor rollers 1005d are located above the lower conveyor rollers 1005c. The upper conveyor rollers 1005d can be passive rollers or active rollers driven by a drive motor, etc. The lower nozzle assembly 1005e includes a lower nozzle frame and a lower nozzle. The lower nozzle frame is installed inside the washing tank, and the lower nozzle is mounted on the lower nozzle frame. The lower nozzle is connected to a high-pressure water pipe, through which water is sprayed onto the surface of the aluminum plate passing between the lower conveyor roller 1005c and the upper conveyor roller 1005d to achieve water washing of the aluminum plate. The water in the high-pressure water pipe is supplied by a water pump. The upper nozzle assembly 1005f includes an upper nozzle frame and an upper nozzle. The upper nozzle frame is installed inside the washing tank, and the upper nozzle is mounted on the upper nozzle frame. The upper nozzle is connected to a high-pressure water pipe, through which water is sprayed onto the surface of the aluminum plate passing between the lower conveyor roller 1005c and the upper conveyor roller 1005d to achieve water washing of the aluminum plate. The water in the high-pressure water pipe is supplied by a water pump.

[0058] The degreasing equipment 1006 has the same structure as the first overflow water washing equipment, the difference being that when degreasing the aluminum plate, it provides the existing degreasing agent.

[0059] The second overflow washing device 1007 has the same structure as the first overflow washing device 1005.

[0060] The alkali leaching equipment 1008 includes an alkali leaching frame, an alkali leaching tank, lower alkali leaching conveyor rollers, and upper alkali leaching conveyor rollers. The alkali leaching tank is installed on the alkali leaching frame and is used to hold alkali solution. Multiple horizontally arranged lower alkali leaching conveyor rollers and multiple horizontally arranged upper alkali leaching conveyor rollers are installed in the alkali leaching tank. Aluminum plates pass between the upper and lower alkali leaching conveyor rollers.

[0061] The third overflow washing device 1009 has the same structure as the first overflow washing device 1005.

[0062] The structure of the neutralization device 1010 is the same as that of the first overflow washing device 1005, except that the liquid sprayed is different.

[0063] The fourth overflow washing device 1011 has the same structure as the first overflow washing device 1005.

[0064] The second tension pinch feeder 1012 has the same structure as the first tension pinch feeder.

[0065] like Figure 8 As shown, the conductive oxidation unit 116 includes a conductive oxidation device, which includes a conductive tank device 1161, an oxidation tank device 1162, and a water-blocking and draining device 1163. The conductive tank device conducts electricity to the aluminum plate through the electrolyte in the conductive tank device, so that the aluminum plate is anodized in the oxidation tank device. The water-blocking and draining device 1163 is provided between the conductive tank device and the oxidation tank device.

[0066] The conductive tank device 1161 includes a first conductive tank 1A, the oxidation tank device 1162 includes a first oxidation tank 2A, and the water-blocking and draining device 1163 includes a first draining tank 3A, a second draining tank 4A, a first water-pressing roller mechanism, and a second water-pressing roller mechanism. In this embodiment, using... Figure 8 From the perspective of the viewpoint, the first conductive groove 1A is located to the left of the first oxidation groove 2A, the first discharge groove 3A is connected to the right of the first conductive groove 1A, and the second discharge groove 4A is connected to the left of the first oxidation groove 2A. There is a gap 10A between the first discharge groove 3A and the second discharge groove 4A. The first water pressure roller mechanism is set in the first discharge groove 3A, and the second water pressure roller mechanism is set in the second discharge groove 4A.

[0067] The first conductive tank 1A is used to hold electrolyte 100A. The bottom of the first conductive tank 1A is equipped with a storage tank, such as... Figure 8 As shown, the first conductive tank 1A has a first cavity 10A. A first channel 11A is provided in the middle of the right side of the first conductive tank 1A, and a fifth channel 12A is provided in the middle of the left side of the first conductive tank 1A. The first channel 11A and the fifth channel 12A are on the same horizontal plane. A first replenishment channel 13A is provided on the first conductive tank 1A, which facilitates the power pump to draw electrolyte from the storage tank and enter the first replenishment channel 13A through the connecting pipe to replenish the liquid in the first conductive tank 1A, so as to ensure that the liquid level in the first conductive tank 1A is always maintained within a preset liquid level height range. In this embodiment, the first replenishment channel 13A is provided on the top or side wall of the first conductive tank 1A. A first overflow port 14A is provided on the side wall of the first conductive tank 1A at a position higher than the first channel 11A. In this embodiment, multiple first overflow ports 14A are provided, and the first overflow ports 14A can be provided on the front side wall, the rear side wall, or both sides of the first conductive tank.

[0068] An anode electrode 9A is disposed on the bottom and / or sidewall of the first conductive tank 1A and within the liquid. When the anode electrode 9A is energized, electricity can be conducted to the aluminum plate 20 through the liquid.

[0069] like Figure 8As shown, the first oxidation tank 2A ​​is used to hold electrolyte 100A. The bottom of the first oxidation tank 2A ​​is provided with a liquid storage tank, and the first oxidation tank 2A ​​has a second cavity 20A inside. A second channel 21A is provided in the middle left side of the first conductive tank 2A, and a sixth channel 22A is provided in the middle right side of the first oxidation tank 2A. The second channel 21A and the sixth channel 22A are on the same horizontal plane, and the first channel and the second channel are also on the same horizontal plane. A second replenishment channel 23A is provided on the first oxidation tank 2A, which facilitates the power pump to draw electrolyte from the storage tank and enter the second replenishment channel 23A through the connecting pipe to replenish the liquid in the first oxidation tank 2A, so as to ensure that the liquid level in the first oxidation tank 2A ​​is always maintained within the preset liquid level height range. In this embodiment, the second replenishment channel 23A is provided on the top or side wall of the first oxidation tank 2A. A second overflow port 24A is provided on the side wall of the first oxidation tank 2A ​​at a position higher than the second channel 21A. In this embodiment, multiple second overflow ports 24A are provided, and the second overflow ports 24A can be provided on the front side wall, the rear side wall, or both sides of the first oxidation tank.

[0070] A cathode electrode 91A is disposed at the bottom and / or top of the first oxidation tank 2A ​​and within the liquid. When the cathode electrode 91A is energized, electricity can be conducted to the aluminum plate 20 through the liquid.

[0071] The first drain tank 3A has a first drain cavity 30A. A third channel 31A is provided on the side of the first drain tank 3A near the first oxidation tank 2A. A first drain channel 32A is provided at the bottom of the first drain tank 3A, so that liquid flowing into the first drain tank 3A can be drained away in a timely manner through the first drain channel. The second drain tank 4A has a second drain cavity 40A. A fourth channel 41A is provided on the side of the second drain tank 4A near the first conductive tank 1A. A second drain channel 42A is provided at the bottom of the second drain tank 4A, so that liquid flowing into the second drain tank 4A can be drained away in a timely manner through the second drain channel.

[0072] The first water-pressing roller mechanism includes one or more first water-pressing roller groups 5A. In this embodiment, two groups of first water-pressing roller groups 5A are provided. One group of first water-pressing roller groups is located near the first conductive groove 1A, and the other group of first water-pressing roller groups is located near the inner wall of the first drainage groove 3A on the side away from the first conductive groove 1A. There is a gap n1 between the first water-pressing roller 51A in the first water-pressing roller group near the first conductive groove 1A and the outer wall of the first conductive groove. There is a gap n2 between the first water-pressing roller 51A in the first water-pressing roller group 5A on the side near the first oxidation groove 2A and the inner wall of the first drainage groove 3A. There is a first gap 50A between the two groups of first water-pressing roller groups 5A. In this way, the liquid flowing from the first conductive groove 1A into the first drainage groove 3A can flow down through the first gap and out of the first drainage groove 3A. The first discharge channel flows out, and the first water pressure roller group 5A includes two first water pressure rollers 51A arranged vertically. There is a first conveying channel between the two first water pressure rollers 51A in the first water pressure roller group for the aluminum plate 20 to pass through. The central axis of the first water pressure roller located on the upper side of the first water pressure roller group is higher than the upper edge of the first channel, and the central axis of the first water pressure roller located on the lower side of the first water pressure roller group is lower than the lower edge of the first channel. In this way, the gap between the first water pressure roller 51A and the outer wall of the first conductive groove 1A and the inner wall of the first discharge groove 3A is small, avoiding direct contact and friction between the first water pressure roller 51A and the outer wall of the first conductive groove 1A and the inner wall of the first discharge groove 3A, and the water blocking effect is good.

[0073] The second water-pressing roller mechanism includes one or more sets of second water-pressing roller groups 6A. In this embodiment, two sets of second water-pressing roller groups 6A are provided. One set of second water-pressing roller groups is located near the first oxidation tank 2A, and the other set of second water-pressing roller groups is located near the inner wall of the second drainage tank 4A on the side away from the first oxidation tank 2A. There is a gap m1 between the second water-pressing roller 61A in the second water-pressing roller group near the first oxidation tank 2A ​​and the outer wall of the first oxidation tank. There is a gap m2 between the second water-pressing roller 61A in the second water-pressing roller group 6A on the side near the first oxidation tank 2A ​​and the inner wall of the second drainage tank 4A. There is a second gap 60A between the two sets of second water-pressing roller groups 6A. In this way, the liquid flowing from the first oxidation tank 2A ​​into the second drainage tank 4A can flow down through the second gap and out through the second gap. The second discharge channel flows out, and the second water pressure roller group 6A includes two second water pressure rollers 61A arranged vertically. There is a second conveying channel between the two second water pressure rollers 61A in the second water pressure roller group for the aluminum plate 20 to pass through. The central axis of the second water pressure roller located on the upper side of the second water pressure roller group is higher than the upper edge of the second channel, and the central axis of the second water pressure roller located on the lower side of the second water pressure roller group is lower than the lower edge of the second channel. In this way, the gap between the second water pressure roller 61A and the outer wall of the first oxidation tank 2A ​​and the inner wall of the second discharge channel 4A is small, avoiding direct contact and friction between the second water pressure roller 61A and the outer wall of the first oxidation tank 2A ​​and the inner wall of the second discharge channel 4A, and the water blocking effect is good.

[0074] In this embodiment, the first channel, second channel, fifth channel, sixth channel, first conveying channel and second conveying channel allow the aluminum plate to pass horizontally.

[0075] In this embodiment, before use, electrolyte is injected into the first conductive tank 1A and the first oxidation tank 2A, and the liquid level is made higher than the first channel 11A and the second channel 21A. Then, the aluminum plate is passed sequentially through the fifth channel 12A, the first conductive tank 1A, the first channel 11A, the first conveying channel, the third channel 31A, the fourth channel 41A, the second conveying channel, the second channel 21A, the first oxidation tank 2A, and the sixth channel 22A. The aluminum plate can be driven by other driving mechanisms, such as multiple sets of drive rollers set outside the first conductive tank and the first oxidation tank. Each set of active rollers includes two drive rollers, and at least one drive roller in the set is connected to a drive motor. When the drive rollers rotate, they can drive the aluminum plate to move. Of course, in this embodiment, the first and second water-pressing rollers can be set as active rollers or driven rollers. During this process, the anode electrode 9A charges the aluminum plate 20 through the liquid in the first conductive tank, thereby oxidizing the surface of the aluminum plate in the first oxidation tank. In this embodiment, during the process of the aluminum plate 20 entering the first oxidation tank 2A ​​from the first conductive tank 1A, since the liquid level is higher than the first channel 11A and the second channel 21A, the liquid in the first conductive tank 1A will flow out through the first channel 21A via gap n1, and the liquid in the first oxidation tank 2A ​​will flow out through the second channel 21A via gap m1. However, in this embodiment, due to the presence of a first pressure roller group and a second pressure roller group, the first pressure roller group near the first conductive tank 1A will partially block the liquid flowing out from the first channel, preventing the liquid from flowing out from the first channel 11A from reaching the second channel 2A. The amount of liquid flowing out of the first conductive tank 1A is reduced, and then the liquid is subjected to secondary pressure water isolation by another first pressure water roller group located away from the first conductive tank 1A, so that the liquid flows out through the first gap 50A and then through the first discharge channel 32A. At the same time, the second pressure water roller group located near the first oxidation tank 2A ​​partially blocks the liquid flowing out of the second channel 21A, reducing the amount of liquid flowing out of the second channel 21A. Then, the liquid is subjected to secondary pressure water isolation by another second pressure water roller group located away from the first oxidation tank 2A, so that the liquid flows out through the second gap 60A and then through the second discharge channel 42A. Therefore, liquid cross-contamination between the first conductive tank and the first oxidation tank can be effectively avoided, short circuits between the anode and cathode can be avoided, and electrons can be transferred to the aluminum plate in the first oxidation tank through the aluminum plate itself. Therefore, the aluminum plate can be better oxidized in the first oxidation tank, thereby improving the oxidation effect.

[0076] In this embodiment, the first conductive groove 1A and the first drain groove 3A can be separated by the first side plate 13, and the first channel 11A is disposed on the first side plate 13; the first oxidation groove 2A and the second drain groove 4A can be separated by the second side plate 24, and the second channel 21A is disposed on the second side plate 24.

[0077] like Figure 1 As shown, the second processing unit 02 includes a fifth overflow washing device 2001, a third tension conveyor 2002, a sixth overflow washing device 2003, a dyeing device 2004, a seventh overflow washing device 2005, a sealing device 2006, an eighth overflow washing device 2007, a hot air drying device 2008, a dryer 2009, and a fourth tension conveyor 2010 arranged sequentially.

[0078] The fifth overflow washing equipment 2001, the sixth overflow washing equipment 2003, the seventh overflow washing equipment 2005, and the eighth overflow washing equipment 2007 all have the same structure as the first overflow washing equipment. The third tension conveyor 2002 and the fourth tension conveyor 2010 have the same structure as the first tension conveyor.

[0079] The dyeing equipment 2004 has the same structure as the alkaline leaching equipment 1008. The difference is that the liquid used is different. The dyeing equipment uses the existing dyeing liquid for alumina plates.

[0080] The sealing equipment 2006 has the same structure as the alkaline leaching equipment 1008. The difference is that the liquid used is different. The sealing equipment uses the existing sealing agent for anodizing.

[0081] The hot air drying equipment 2008 includes a drying frame, a drying chamber, drying conveyor rollers, and drying guns. The drying chamber is mounted on the drying frame, and channels for aluminum plates to pass through are provided on both the left and right sides of the drying chamber. Inside the drying chamber, there are vertically arranged drying conveyor roller groups, each group consisting of multiple horizontally arranged drying conveyor rollers. The aluminum plates pass through the vertically arranged drying conveyor roller groups. Drying guns are positioned above and below the passing aluminum plates, and hot air is supplied to the drying guns by a fan to dry the passing aluminum plates. Alternatively, existing hot air drying equipment from an anodizing production line can also be used.

[0082] The 2009 dryer uses an existing dryer.

[0083] In this embodiment, the post-processing unit is a winding unit. The winding unit uses an existing winding machine, such as the one with patent application number […]. 201820103653.6 Aluminum sheet winding machine.

[0084] Of course, aluminum plates that have undergone anodizing can be directly cut. Therefore, the post-processing unit is a cutting machine unit, which includes, in sequence, a buffer trench 3001, a finishing machine 3002, a follow-up shearing machine 3003, a conveyor belt 3004, a main conveyor belt 3005, a gantry robot 3006, a lifting platform 3007, and a discharge platform 3008. The buffer trench 3001 is used to collect liquids on the aluminum plate; the finishing machine 3002 uses an existing aluminum plate finishing machine, such as a high-precision aluminum strip finishing machine with patent application number 202210972599.X, which is used for precise finishing of aluminum plates; the follow-up shearing machine 3003 uses an existing follow-up shearing machine, such as a sheet metal follow-up shearing mechanism with patent application number 202321496684.X, which is used to shear aluminum plates to form aluminum plates; the conveyor belt 3004 uses an existing conveyor belt... The conveyor belt 3005 is a belt conveyor, and the conveyor belt 3004 and the main conveyor belt 3005 are used to convey aluminum plates to the lifting platform 3007. The lifting platform 3007 is an existing scissor-type lifting platform. The gantry robot 3006 transfers the aluminum plates on the lifting platform 3007 to the unloading platform 3008. The gantry robot 3006 is an existing gantry robot, such as an intelligent four-axis gantry robot for aluminum plates with patent application number 201820400676.3.

[0085] In this embodiment, the unwinding mechanism 01 unwinds the aluminum sheet, then the leveling machine 1001 levels the aluminum sheet, and the first tension conveyor 1002 tensions the aluminum sheet. The aluminum sheet then sequentially passes through a grinding machine for surface polishing, a first overflow washing machine for cleaning, a degreasing machine for surface degreasing, a second overflow washing machine for cleaning, an alkaline immersion machine for alkali treatment, a third overflow washing machine for cleaning, a neutralization machine for neutralizing substances on the surface of the aluminum sheet, a fourth overflow washing machine for cleaning, and the second tension conveyor tensions the aluminum sheet before it enters the... The aluminum plate is oxidized in the conductive oxidation unit to form an oxide film on its surface. Then, it is sequentially cleaned by the fifth overflow washing equipment, tensioned by the third tension conveyor, cleaned by the sixth overflow washing equipment, dyed by the dyeing equipment, cleaned by the seventh overflow washing equipment, sealed by the sealing equipment, cleaned by the eighth overflow washing equipment, dried by the hot air blowing equipment and the dryer, and finally conveyed to the winding unit by the fourth tension conveyor for winding.

[0086] If the post-processing unit is a cutting unit, the anodized aluminum plate is finished, cut, conveyed and discharged.

[0087] The production line in this embodiment improves both the oxidation effect and the oxidation efficiency.

[0088] Example 2.

[0089] like Figure 1 and Figure 10 As shown, the difference between this embodiment 2 and embodiment 1 is only that: a first receiving tank 7A is also provided on the left side of the first conductive tank 1A. The first receiving tank 7A is provided with a first receiving cavity 71A and a seventh channel 72A. A third drain channel 73A communicating with the first receiving cavity 71A is provided at the bottom of the first receiving tank 7A. The first receiving tank 7A can receive the electrolyte flowing out of the first conductive tank 1A and can provide a buffer space for the electrolyte flowing out of the first conductive tank 1A. The electrolyte flows into the first receiving tank 7A through the fifth channel, and the electrolyte in the first receiving tank 7A can flow out through the third drain channel 73A. A second receiving tank 8A is also provided on the right side of the first oxidation tank 2A. The second receiving tank 8A is provided with a second receiving cavity 81A and an eighth channel 82A. A fourth discharge channel 83A communicating with the second receiving cavity 81A is provided at the bottom of the second receiving tank 8A. The second receiving tank 8A can receive the electrolyte flowing out of the first oxidation tank 2A ​​and provide a buffer space for the electrolyte flowing out of the first oxidation tank 2A. The electrolyte flows into the second receiving tank 8A through the sixth channel, and the electrolyte in the second receiving tank 8A can flow out through the fourth discharge channel 83A.

[0090] Example 3.

[0091] like Figure 1 and Figure 11 As shown, the difference between Embodiment 3 and Embodiment 2 is only that: a third water-pressing roller group 500A with the same structure as the first water-pressing roller group is provided in the first receiving groove 7A, and its function is the same as that of the first water-pressing roller group. A fourth water-pressing roller group 600A with the same structure as the second water-pressing roller group is provided in the second receiving groove 8A, and its function is the same as that of the second water-pressing roller group.

[0092] Example 4.

[0093] like Figure 1 , Figure 12 and Figure 13As shown, the difference between this embodiment and Embodiment 1 is that the conductive oxidation unit is different. In this embodiment, the conductive oxidation unit 116 includes a conductive oxidation device, which includes a conductive tank device 1161, an oxidation tank device 1162, and a water-blocking and draining device 1163. In the conductive tank device, the aluminum plate is made conductive by liquids such as electrolytes in the conductive tank device. In the oxidation tank device, the aluminum plate is made conductive by liquids such as electrolytes in the oxidation tank device. A water-blocking and draining device 1163 is provided between the conductive tank device and the oxidation tank device.

[0094] The conductive tank device 1161 includes a second conductive tank 1 and a first guide device; the oxidation tank device 1162 includes a second oxidation tank 2 and a second guide device; and the water blocking and drainage device 1163 includes a third guide device 3.

[0095] The third guiding device 3 is disposed between the second conductive groove 1 and the second oxidation groove 2, which are arranged opposite to each other. The third guiding device 3 includes a roller 31, a rotating shaft 32, a drive motor 33, and two support frames 34. The support frames 34 are disposed between the second conductive groove 1 and the second oxidation groove 2. The two ends of the rotating shaft 32 are connected to the support frames 34 through bearings. The output end of the drive motor 33, which is disposed on one side of the support frame 34, is connected to one end of the rotating shaft 32. The roller 31 is sleeved on the rotating shaft 32. This facilitates the rotation of the rotating shaft 32 and the roller 31 by the drive motor 33, thereby causing the aluminum plate 20, which has been conductive in the second conductive groove 1, to be continuously transported into the second oxidation groove 2 for oxidation reaction under the drive of the roller 31.

[0096] like Figure 12 As shown, one or more first guide devices are provided at one end of the second conductive tank 1 near the third guide device 3, and one or more second guide devices are provided at one end of the second oxidation tank 2 near the third guide device 3. In this embodiment, both the first guide device and the second guide device are provided in pairs. The first guide device is set below the electrolyte surface 8 in the second conductive tank, and the second guide device is set below the electrolyte surface 8 in the second oxidation tank. The first guide device in the second conductive tank and the second guide device in the second oxidation tank are set at the same height. The roller 31 is set above the electrolyte surface 8 in the second conductive tank and the second oxidation tank.

[0097] like Figure 12 As shown, the first guiding device includes a rotating shaft 41 and a roller 42. The roller 42 is sleeved on the rotating shaft 41, and the height from the top of the roller 42 to the bottom of the second conductive groove 1 is less than the height of the electrolyte surface 8 in the second conductive groove. The two ends of the rotating shaft 41 are connected to the inner wall of the second conductive groove 1, so that the aluminum plate entering the second conductive groove can bypass the bottom of the roller 42, so that the aluminum plate is completely immersed in the electrolyte in the second conductive groove 1.

[0098] In this embodiment, first through channels 11 are provided on both sides of the second conductive groove 1, and the height of the electrolyte level 8 in the second conductive groove is less than the height from the first through channel 11 to the bottom of the second conductive groove. A conveying mechanism 4 is provided outside the first through channel on the left side, so that the aluminum plate passes around the conveying mechanism 4 and enters the second conductive groove 1 from the first through channel 11 on the left side, and is conveyed out of the second conductive groove 2 obliquely upward through the first through channel 11 on the right side.

[0099] like Figure 12 As shown, the second guiding device includes a rotating shaft 51 and a roller 52. The roller 52 is sleeved on the rotating shaft 51, and the height from the top of the roller 52 to the bottom of the second oxidation tank 2 is less than the height of the electrolyte surface 8 in the second oxidation tank. The two ends of the rotating shaft 51 are connected to the inner wall of the second oxidation tank 2, so that the aluminum plate 20 entering the second oxidation tank can bypass the bottom of the roller 52, so that the aluminum plate 20 is completely immersed in the electrolyte of the second oxidation tank 2.

[0100] In this embodiment, a second through channel 21 is provided on both sides of the second oxidation tank 2, and the height of the electrolyte level 8 in the second oxidation tank is less than the height from the second through channel 21 to the bottom of the second oxidation tank. A conveying mechanism 5 is provided outside the second through channel 21 on the right side, which enables the aluminum plate 20, which bypasses the third guide device 3, to enter the second oxidation tank 2 obliquely downward from the second observation channel 21 on the left side, and to be conveyed out of the second oxidation tank 2 through the second through channel 21 on the right side into the second processing unit 02.

[0101] The structural configurations of conveying mechanism 4 and conveying mechanism 5 are the same as those of the third guiding device 3, and will not be described again here.

[0102] In this embodiment, the second conductive tank 1 is provided with two or more anode electrodes 9A, which are located below the first guiding device and are immersed in the electrolyte. The second oxidation tank 2 is provided with two or more cathode electrodes 91A, which are located above and below the second guiding device and are also immersed in the electrolyte. Thus, when a certain voltage is applied to the anode electrodes 9A and the cathode electrodes 91A, a circuit is formed, allowing the aluminum plate to undergo anodizing in the second oxidation tank. The electrolytes in the second conductive tank and the second oxidation tank can be sulfuric acid solutions of different concentrations. By setting this structure, the aluminum plate 20 can undergo conductive and oxidation reactions in the second conductive tank 1 and the second oxidation tank 2 respectively, without affecting each other, and the conductive process achieved through the electrolyte is effective.

[0103] In this embodiment, the second conductive tank 1 is provided with electrolyte overflow ports on both sides adjacent to the first through channel 11 on the left (not shown in the figure), and the second oxidation tank 2 is provided with electrolyte overflow ports on both sides adjacent to the second through channel 21 on the right. After the electrolyte overflow ports flow out, it flows into the storage tank (not shown in the figure) located at the bottom of the second conductive tank 1 and the second oxidation tank 2. The bottom of the second conductive tank 1 and the second oxidation tank 2 are both provided with electrolyte spray pipes (not shown in the figure). The spray pipes are provided with electrolyte inlets (not shown in the figure). The spray pipes are connected to an external power pump. The power pump draws electrolyte from the storage tank and enters the second conductive tank 1 and the second oxidation tank 2 through the spray pipes, thereby realizing the recycling of electrolyte. The height of the electrolyte level 8 in the second conductive tank and the second oxidation tank is controlled by the inflow and outflow of electrolyte inlet and electrolyte overflow port, thereby ensuring that the aluminum plate 20 is completely immersed in electrolyte and preventing electrolyte from overflowing from the first through channel 11 on the right side of the second conductive tank or the second through channel 21 on the left side of the second oxidation tank.

Claims

1. An anodizing production line for aluminum sheet coils, comprising a discharge mechanism, a first processing unit, a conductive oxidation unit, a second processing unit, and a post-processing unit arranged sequentially, characterized in that: The conductive oxidation unit includes a conductive oxidation device, which includes a conductive tank device and an oxidation tank device. The aluminum plate is made conductive through the liquid inside the conductive tank device, so that the aluminum plate can be anodized in the oxidation tank device. A water-blocking and drainage device is provided between the conductive tank device and the oxidation tank device.

2. The aluminum sheet / coil anodizing production line according to claim 1, characterized in that: The discharge mechanism includes an uncoiling trolley, and the first processing unit includes a leveling machine, a first tension conveyor, a grinding machine, a first overflow washing device, an oil removal device, a second overflow washing device, an alkali leaching device, a third overflow washing device, a neutralization device, a fourth overflow washing device, and a second tension conveyor, arranged in sequence.

3. The aluminum sheet / coil anodizing production line according to claim 1, characterized in that: The conductive tank device includes a first conductive tank, and the oxidation tank device includes a first oxidation tank. The first conductive tank and the first oxidation tank are arranged sequentially in a horizontal direction. A first channel is provided on the side of the first conductive tank near the first oxidation tank, and a second channel is provided on the side of the first oxidation tank near the first conductive tank. The water-blocking and drainage device includes a first drainage channel, a first water-pressing roller mechanism, a second drainage channel, and a second water-pressing roller mechanism. The first drainage channel is connected to the first conductive tank and located outside the first channel. The first water-pressing roller mechanism is disposed in the first water-pressing roller channel and includes one or more first water-pressing roller groups. The first water-pressing roller groups include rollers arranged vertically. Two first water-pressing rollers are provided, and a first conveying channel is provided between the two first water-pressing rollers in the first water-pressing roller group; a second discharge groove is connected to a second conductive groove and located outside the second channel; a second water-pressing roller mechanism is provided in the second discharge groove; the second water-pressing roller mechanism includes one or more second water-pressing roller groups; each second water-pressing roller group includes two second water-pressing rollers arranged vertically; a second conveying channel is provided between the two second water-pressing rollers in the second water-pressing roller group; the first conveying channel and the second conveying channel are arranged horizontally; a third channel is provided on the side of the first discharge groove near the first oxidation groove; and a fourth channel is provided on the side of the second discharge groove near the first conductive groove.

4. The aluminum sheet / coil anodizing production line according to claim 3, characterized in that: The first water-pressing roller group is provided in two sets. One set of the first water-pressing roller group is located near the first conductive groove, and the other set of the first water-pressing roller group is located between the first water-pressing roller group near the first conductive groove and the second water-pressing roller mechanism. There is a first gap between the two sets of the first water-pressing roller group. The second water-pressing roller group is also provided in two sets. One set of the second water-pressing roller group is located near the first oxidation groove, and the other set of the second water-pressing roller group is located between the second water-pressing roller group near the first oxidation groove and the first water-pressing roller mechanism. There is a second gap between the two sets of the second water-pressing roller group. In the first water-pressing roller group, the central axis of the upper water-pressing roller is higher than the upper edge of the first channel, and the central axis of the lower water-pressing roller is lower than the lower edge of the first channel; in the second water-pressing roller group, the central axis of the upper water-pressing roller is higher than the upper edge of the second channel, and the central axis of the lower water-pressing roller is lower than the lower edge of the second channel.

5. The aluminum sheet / coil anodizing production line according to claim 3, characterized in that: A first replenishment channel is provided on the first conductive tank, and a first discharge channel is provided on the first discharge tank; a second replenishment channel is provided on the first oxidation tank, and a second discharge channel is provided on the second discharge tank; a first overflow port is provided on the side wall of the first conductive tank at a position higher than the first channel, and a second overflow port is provided on the side wall of the first oxidation tank at a position higher than the second channel.

6. The aluminum sheet / coil anodizing production line according to claim 3, characterized in that: An anode electrode is provided on the bottom surface and / or inner wall of the first conductive tank, and a cathode electrode is provided on at least one side above and below the aluminum plate in the first oxidation tank.

7. The aluminum sheet / coil anodizing production line according to claim 1, characterized in that: The conductive tank device includes a second conductive tank and a first guide device. First through channels are respectively provided on opposite sides of the second conductive tank. The first guide device is disposed within the second conductive tank, and its lowest point is lower than the lower surface of the first through channel. The oxidation tank device includes a second oxidation tank and a second guide device. Second through channels are respectively provided on opposite sides of the second oxidation tank. The second guide device is disposed within the second oxidation tank, and its lowest point is lower than the lower surface of the second through channel. There is a gap between the second conductive tank and the second oxidation tank. The water-blocking and drainage device includes a third guide device located within the gap. The highest point of the third guide device is higher than the set liquid level in both the second conductive tank and the second oxidation tank.

8. The aluminum sheet / coil anodizing production line according to claim 7, characterized in that: An anode electrode is provided on the bottom surface and / or side wall of the first conductive tank, and a cathode electrode is provided on at least one side above and below the aluminum plate in the second oxidation tank; the first guiding device is a first guiding roller, the second guiding device is a second guiding roller, and the third guiding device is a third guiding roller; a fourth guiding device is provided at the end of the second conductive tank away from the second oxidation tank, and the fourth guiding device is a fourth guiding roller; a fifth guiding device is provided at the end of the second oxidation tank away from the second conductive tank, and the fifth guiding device is a fifth guiding roller.

9. The aluminum sheet / coil anodizing production line according to claim 7, characterized in that: The second processing unit includes, in sequence, a fifth overflow washing device, a third tension conveyor, a sixth overflow washing device, a dyeing device, a seventh overflow washing device, a sealing device, an eighth overflow washing device, a hot air drying device, a dryer, and a fourth tension conveyor.

10. The aluminum sheet / coil anodizing production line according to claim 1, characterized in that: The post-processing unit is either a winding unit or a cutting unit. The cutting unit includes, in sequence, a buffer ditch, a finishing machine, a follow-up shear, a conveyor belt, a main conveyor belt, a gantry robot, a lifting platform, and a discharge platform.

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