An aluminum plate oxidation treatment process and a rolling auxiliary component

Abstract

The present invention relates to the technical field of aluminum plate oxidation treatment, and specifically, to an aluminum plate oxidation treatment process and a rolling auxiliary component. It includes the following steps: S1, the aluminum plate is subjected to power-on treatment through a conductive device; S2, then it enters an electrolytic cell for electrolytic treatment; the conductive device includes a base and a conductive roller, the conductive roller is rotatably connected to the base, and the aluminum plate is in close and large-area contact with the conductive roller; S3, after passing through the electrolytic cell, it enters a surface treatment device; S4, then it enters a drying device; S5, after drying is completed, the aluminum plate is wound up. In the present invention, the conductive roller can maintain synchronous movement with low energy loss when the aluminum plate is moving forward, and the conductive roller can respond quickly, avoiding the situation of aluminum plate fracture or deformation damage caused by the reaction delay of the driving member, thereby solving the problem that the response speed of the conductive roller and the synchronism with the aluminum plate do not meet the requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum plate oxidation treatment, and specifically, to an aluminum plate oxidation treatment process and a rolling auxiliary component. Background Art

[0002] For the oxidation treatment of aluminum plates, especially anodic oxidation treatment, it is indeed necessary to place the aluminum plate as the anode in an electrolytic cell. This process is carried out under specific conditions with the action of an externally applied current, so that a dense oxide film is formed on the surface of the aluminum plate. This film not only enhances the corrosion resistance of the material, but also endows it with better wear resistance and aesthetics.

[0003] Specifically, as shown in Figure 1 During the anodic oxidation process, the aluminum plate is placed in an electrolytic cell containing an electrolyte as the anode (positive electrode), and another electrode serves as the cathode (negative electrode). When a direct current is applied by the passing conductive roller, the aluminum atoms on the aluminum plate lose electrons to become aluminum ions, and combine with oxygen ions in the electrolyte solution to form aluminum oxide. As the current continues to pass, an oxide layer that grows from the inside out gradually forms on the aluminum surface.

[0004] When the aluminum plate is moving, the power comes from the pulling force during winding. In this process, because the subsequent resistance is relatively large, the aluminum plate is very easy to break. Especially when passing through the conductive roller, it is necessary for the aluminum plate to be tightly attached to the surface of the conductive roller, and the radius of the conductive roller is relatively large, which results in a large resistance on the aluminum plate when it is moving, and the situation of breakage or deformation damage often occurs.

[0005] Therefore, an aluminum plate oxidation treatment process and a rolling auxiliary component are proposed. Summary of the Invention

[0006] By rotating the conductive roller, the resistance suffered by the aluminum plate during movement can be effectively reduced. However, the problem is that if the motor or other driving components directly drive the conductive roller to rotate, then there are very high requirements for the response speed of the conductive roller and its synchronization with the aluminum plate. If the aluminum plate moves forward and the conductive roller fails to rotate in time, the pulling force generated at the start will directly cause the aluminum plate to break. If the aluminum plate stops and the conductive roller fails to stop rotating in time, it is very easy to cause the aluminum plate to deform.

[0007] To solve the above problems, an aluminum plate oxidation treatment process is proposed, including the following steps:

[0008] S1. The aluminum plate is subjected to power-on treatment through a conductive device;

[0009] S2. Immediately afterwards, it enters the electrolytic cell for electrolysis treatment;

[0010] The conductive device includes a base and a conductive roller. The conductive roller is rotatably connected to the base, and the aluminum plate is in close and large-area contact with the conductive roller;

[0011] S3. Enter the surface treatment equipment after passing through the electrolytic cell;

[0012] S4. Then enter the drying equipment;

[0013] S5. After drying is completed, wind up the aluminum plate;

[0014] Among them, the winding action is the power source during the progress of the aluminum plate;

[0015] When the aluminum plate is moving forward, the conductive roller can maintain synchronous movement with low energy loss, so that the aluminum plate moves forward smoothly without breaking or being damaged;

[0016] And when the aluminum plate stops moving forward, the conductive roller immediately stops rotating.

[0017] In the above solution, the conductive roller is in a "zero resistance" state. When the aluminum plate moves, the conductive roller moves; when the aluminum plate stops, the conductive roller stops. That is to say, the conductive roller does not actively maintain synchronization with the aluminum plate, but is in a "quasi-static" self-locking state. Only the frictional force generated by the progress of the aluminum plate can break this self-locking state. After the aluminum plate stops moving forward, the conductive roller returns to the self-locking state, so that the conductive roller can respond quickly, avoiding the situation of the aluminum plate breaking or being deformed and damaged due to the reaction delay of the driving part, and then solving the problem that the response speed of the conductive roller and the synchronization with the aluminum plate do not meet the requirements.

[0018] Preferably, the electrolytic cell is filled with acidic electrolyte;

[0019] The acidic electrolyte includes sulfuric acid and oxalic acid;

[0020] The contact between the conductive roller and the aluminum plate makes the aluminum plate energized as the anode of the thermoelectrochemical oxidation. As the current continuously passes through, a protective film composed of aluminum oxide is formed on the surface of the aluminum plate.

[0021] Furthermore, the aluminum plate enters from the lower side to the upper vertex of the conductive roller and then enters the electrolytic cell from the lower side to increase the contact area and contact pressure between the aluminum plate and the conductive roller.

[0022] Even further, the diameter of the conductive roller is 400 - 500 mm.

[0023] A rolling auxiliary component for the aluminum plate oxidation treatment process described in any one of the above is also proposed, which is arranged adjacent to the conductive roller;

[0024] A rotating shaft is coaxially arranged on one side of the conductive roller facing the rolling auxiliary component;

[0025] The rolling auxiliary component is used to provide driving force to the rotating shaft;

[0026] The driving force is less than or equal to the load on the rotating shaft.

[0027] As a further improvement of this technical solution, it includes a support, a first gear set, a second gear set and a motor, and both the support and the motor are installed on the base;

[0028] The output end of the motor is connected with a drive shaft through the first gear set;

[0029] The end of the rotating shaft is connected with a transmission shaft through the second gear set, so that the load on the rotating shaft acts on the transmission shaft;

[0030] The drive shaft and the transmission shaft are in frictional contact under the support of the support. When the drive shaft rotates, the frictional force generated by the frictional contact constitutes the driving force.

[0031] As a further improvement of this technical solution, a docking chamber is axially opened in the support along the axial directions of the drive shaft and the transmission shaft. A sleeve is arranged at the end of the transmission shaft located in the docking chamber. One end of the drive shaft is docked with the sleeve, and the outer surface of the drive shaft is in contact with the inner surface of the sleeve.

[0032] In this solution, the drive shaft is always rotating. When the aluminum plate does not apply any pulling force to the conductive roller, the driving force generated by the contact between the drive shaft and the sleeve is not sufficient to overcome the static frictional force on the sleeve. Therefore, the sleeve and the transmission shaft remain stationary. At this time, since there is no external force acting, the transmission shaft is actually in a "quasi-static" self-locking state. This means that although the drive shaft is rotating, due to insufficient frictional conditions, it cannot effectively transmit enough torque to the transmission shaft, so that the latter remains stationary. In this way, there is no need to consider the problem of when the drive shaft starts and stops.

[0033] As a further improvement of this technical solution, the first gear set includes a bevel gear box. A first transmission gear is arranged on one side of the bevel gear box, and the bevel gear box is used to connect the first transmission gear with the output of the motor;

[0034] The end of the drive shaft is coaxially and fixedly connected with a second transmission gear, and the second transmission gear meshes with the first transmission gear;

[0035] The second gear set includes a large gear and a small gear that mesh with each other. The large gear is coaxially connected with the rotating shaft, and the small gear is coaxially and fixedly connected with the transmission shaft.

[0036] Preferably, the radius of the first transmission gear is 3 cm to 5 cm, and the radius of the second transmission gear is 8 cm - 10 cm. By driving the second transmission gear with the first transmission gear, the speed is reduced, so that the drive shaft can operate at a lower speed. On the one hand, the contact frequency between the gears is reduced, and on the other hand, the energy loss between the drive shaft and the sleeve is reduced.

[0037] Preferably, the radius of the large gear is 40 cm to 50 cm, and the radius of the small gear is 3 cm to 5 cm. Since the number of teeth of the large gear is more than that of the small gear, the small gear will rotate at a higher speed, and at the same time, a greater torque will be transmitted to the transmission shaft. In this way, even at a lower traveling speed, the aluminum plate can provide sufficient force to overcome static friction and help achieve a smooth start. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic structural diagram of the aluminum plate oxidation treatment of the present invention;

[0039] Figure 2 is a schematic structural diagram of the conductive device of the present invention;

[0040] Figure 3 is a schematic structural diagram of the rolling auxiliary component of the present invention;

[0041] Figure 4 is a schematic structural diagram of the drive shaft, transmission shaft and support of the present invention;

[0042] Figure 5 is a schematic side view structural diagram of the drive shaft and the transmission shaft of the present invention;

[0043] Figure 6 is a schematic structural diagram of the first transmission gear and the second transmission gear of the present invention;

[0044] Figure 7 is a schematic structural diagram of the large gear and the small gear of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0046] During the oxidation treatment of the aluminum plate, the power for the linear movement of the aluminum plate comes from the pulling force during winding. During this process, because the subsequent resistance is large, the aluminum plate is prone to breakage.

[0047] The first embodiment provides an aluminum plate oxidation treatment process to solve the above problems, as Figure 1 shown, and the specific steps are as follows:

[0048] S1. The aluminum plate is subjected to power-on treatment through the conductive device 100;

[0049] S2. Immediately afterwards, it enters the electrolytic cell 200 for electrolytic treatment;

[0050] S3. Enter the surface treatment device 300;

[0051] S4. Enter the drying device 400;

[0052] S5. After drying, wind up the aluminum plate;

[0053] Among them, as shown in Figure 2 The conductive device 100 includes a base 110 and a conductive roller 120. The conductive roller 120 is rotatably connected to the base 110. The conductive roller 120 contacts the aluminum plate to make the aluminum plate energized as the anode of the thermoelectrochemical oxidation. An acidic electrolyte such as sulfuric acid, oxalic acid, etc. is added to the electrolytic cell 200. In an acidic environment, the aluminum plate as the anode will lose electrons to form aluminum ions, and at the same time, the hydroxide ions in the water accept these electrons to generate oxygen.

[0054] However, it should be noted that in actual operation, especially under strong acid conditions, the hydrogen gas generated by hydrolysis may also become one of the main reduction products.

[0055] As the current continues to pass through, a protective film composed of aluminum oxide gradually forms on the surface of the aluminum plate. This layer of film not only prevents further direct dissolution, but also can self-repair because any exposed fresh metal surface will be quickly oxidized again. This oxide film has a porous structure. In the initial stage, the pores are larger. As the treatment time extends, the pores gradually shrink and close, and finally a dense and hard barrier is formed.

[0056] During use, since the aluminum plate needs to be in close contact with the conductive roller 120, the height of the two side support rollers is lower than the height of the conductive roller 120. In this way, the aluminum plate enters the upper vertex of the conductive roller 120 from the low side and then enters the electrolytic cell 200 from the low side to increase the contact area between the aluminum plate and the conductive roller 120. In addition, the aluminum plate passing through the two side support rollers can naturally pass above the conductive roller 120, and then under the action of gravity, the aluminum plate naturally approaches the conductive roller 120, increasing the contact pressure between the two, realizing close contact, thereby improving the contact quality and reducing the factors that may cause poor contact.

[0057] Moreover, under the guidance of the two side support rollers, the traveling path of the aluminum plate can be effectively controlled to ensure that it contacts the conductive roller 120 at the most suitable angle and position. However, if the radius of the conductive roller 120 is increased to increase its contact area with the aluminum plate, a larger contact area allows more electrons to be transferred from the aluminum plate to the conductive roller 120 and finally enter the external circuit. This means that more aluminum ions can be processed at the same time, accelerating the anodic oxidation process.

[0058] The following problem then arises: The aluminum plate is already in close contact with the conductive roller 120. That is to say, there is a certain pressure of the aluminum plate on the conductive roller 120. Under this pressure, the frictional force between the aluminum plate and the conductive roller 120 is relatively large. Moreover, a relatively high tangential stress will be formed at the contact position. Especially for thinner or lower-hardness aluminum plates, this tangential stress may exceed the shear strength limit of the material itself, thereby causing the aluminum plate to break.

[0059] In fact, for a standard industrial-grade aluminum alloy plate with a thickness of 0.3 mm, when performing thermoelectrochemical oxidation treatment using a conductive roller 120 with a diameter of 100 mm, the pressing force between the aluminum plate (i.e., the standard industrial-grade aluminum alloy plate) and the conductive roller 120 is set to 3 N / cm². This can not only ensure good electrical contact but also prevent the aluminum plate from breaking due to excessive frictional force.

[0060] In this embodiment, it is desired to expand the diameter of the conductive roller 120 to 400 - 500 mm. Then, it is necessary to reduce the frictional force between the aluminum plate and the conductive roller 120. A common method is to reduce the contact pressure between the aluminum plate and the conductive roller 120. However, the solution adopted in this embodiment is as follows:

[0061] As Figure 2 and Figure 3 shown, a rolling assistance component is provided on the base 110. As Figure 5 shown, this rolling assistance component is used to provide a driving force f to the rotating shaft 121 of the conductive roller 120. However, this driving force f is less than or equal to the load F on the rotating shaft 121. The load F specifically refers to the sum of the resistance acting on the rotating shaft 121 or various forces that hinder its free rotation. These resistances include, but are not limited to, internal friction of the bearing, friction of the seal (note: the frictional force here does not include the frictional force between the aluminum plate and the conductive roller 120 described above, because at this time the aluminum plate is stationary), and the inertial force brought by the self-weight of the conductive roller 120. Generally, when the driving force f is greater than the load F, the rotating shaft 121 can rotate, and the rotation of the rotating shaft 121 drives the conductive roller 120 to roll (i.e., rotate along the axis of the rotating shaft 121).

[0062] Among them, the driving force f is the frictional force acting on the rotating shaft 121. This frictional force is set at a specific level (the driving force f is equal to the load F on the rotating shaft 121), that is, the so-called "critical frictional force". This frictional force cannot drive the rotating shaft 121 alone to drive the conductive roller 120 to roll. However, when the aluminum plate moves forward and an additional pulling force is applied, the total force under the combined action of the two is sufficient to overcome the load F, causing the conductive roller 120 to start rotating following the aluminum plate.

[0063] Specifically, as Figure 3As shown, the rolling assist component includes a support 150, a first gear set, a second gear set, and a motor 130. The support 150 and the motor 130 are both mounted on the base 110. As Figure 4 and Figure 5 shown, one side of the support 150 is rotatably connected to a drive shaft 1511, and on the other side, a transmission shaft 1531 is coaxially rotatably connected to the drive shaft 1511. An abutting chamber 150A is axially formed in the support 150 along the drive shaft 1511 and the transmission shaft 1531. A sleeve 1532 is provided at the end of the transmission shaft 1531 located in the abutting chamber 150A. One end of the drive shaft 1511 abuts against the sleeve 1532, and the outer surface of the drive shaft 1511 contacts the inner surface of the sleeve 1532.

[0064] Among them, the other end of the drive shaft 1511 is connected to the motor 130 through the first gear set, and the end of the transmission shaft 1531 away from the sleeve 1532 is connected to the rotating shaft 121 through the second gear set. Driven by the motor, the drive shaft 1511 rotates. The contact between the outer surface of the drive shaft 1511 and the inner surface of the sleeve 1532 generates a frictional force (i.e., the driving force f), but the generated frictional force is not sufficient to overcome the load F on the transmission shaft 1531. Therefore, the rotating shaft 121 cannot drive the conductive roller 120 to rotate at this time. Once the aluminum plate starts to move forward, a frictional force is formed at the contact surface between the aluminum plate and the conductive roller 120. The resultant force of this frictional force and the previous driving force f causes the conductive roller 120 to start rotating. The originally existing large static frictional force will quickly change into a smaller dynamic frictional force. This means that during the continuous movement of the aluminum plate, the conductive roller 120 can maintain synchronous movement with lower energy loss and will not cause the aluminum plate to break due to excessive frictional resistance.

[0065] As Figure 3 shown, the first gear set includes a bevel gear box 140. There are two perpendicular first connecting shafts 141 and second connecting shafts 142 in the bevel gear box 140, which are connected by bevel gears. One of the connecting shafts (the first connecting shaft 141) is connected to the output shaft (i.e., the output end) of the motor 130 through a belt and a pulley. When the motor 130 operates, its output shaft will naturally drive the first connecting shaft 141 to rotate, and the other connecting shaft (the second connecting shaft 142) rotates synchronously. A first transmission gear 152 is coaxially and fixedly connected to the end of the second connecting shaft 142; As Figure 4 shown, a second transmission gear 151 is coaxially and fixedly connected to the end of the drive shaft 1511. The second transmission gear 151 meshes with the first transmission gear 152.

[0066] See Figure 3 and Figure 4As shown, the second gear set includes a large gear 123 and a small gear 153 that mesh with each other. The large gear 123 is coaxially connected to the rotating shaft 121, and a bearing block 122 is also provided outside the rotating shaft 121. The small gear 153 is coaxially and fixedly connected to the transmission shaft 1531. In this way, when the aluminum plate moves forward, an additional pulling force is applied to the conductive roller 120, and then the large gear 123 transmits the pulling force to the small gear 153, and finally acts outside the transmission shaft 1531, as Figure 5 shown. At this time, the transmission shaft 1531 is under the action of the driving force f and is in a "zero resistance" state. Therefore, the conductive roller 120 can be easily pulled by the aluminum plate and rotate with the aluminum plate. Once the pulling of the aluminum plate stops, the conductive roller 120 will immediately stop rotating.

[0067] During operation, the motor 130 is always in operation, that is, the drive shaft 1511 is always rotating. When the aluminum plate does not apply any pulling force to the conductive roller 120, the driving force f (frictional force) generated by the contact between the drive shaft 1511 and the sleeve 1532 is not sufficient to overcome the static frictional force on the sleeve 1532. Therefore, the sleeve 1532 and the transmission shaft 1531 remain stationary. At this time, due to the absence of external force, the transmission shaft 1531 is actually in a "quasi-static" self-locking state. This means that although the drive shaft 1511 is rotating, due to insufficient frictional conditions, it cannot effectively transmit enough torque to the transmission shaft 1531, thus keeping the latter stationary.

[0068] It should be noted that in the "zero resistance" state under the self-locking condition, once the aluminum plate starts to pull the conductive roller 120, the situation changes. Even if the aluminum plate applies a very small force, it is sufficient to break the self-locking state, enabling the transmission shaft 1531 to easily rotate synchronously with the drive shaft 1511. In other words, in this case, the transmission shaft 1531 can indeed be regarded as being in an almost "zero resistance" state because it only needs to overcome a very small starting frictional force to start moving.

[0069] After the aluminum plate gently provides a pulling force, the conductive roller 120 will rotate synchronously with the aluminum plate. The key here lies in the way the frictional force between the conductive roller 120 and the aluminum plate acts: as the moving speed of the aluminum plate changes, the relative speed between the conductive roller 120 and the aluminum plate will also change, thereby affecting the frictional force between the two. If the aluminum plate stops moving, the conductive roller 120 will also stop accordingly because there is no relative motion at this time, and the frictional force becomes static frictional force again, preventing further rotation. This mechanism ensures that the rotating roller always keeps in line with the movement of the aluminum plate, neither advancing nor lagging.

[0070] The second embodiment, as Figure 6As shown, the radius R1 of the first transmission gear 152 is between 3 cm and 5 cm, and the radius R2 of the second transmission gear 151 is between 8 cm and 10 cm. The first transmission gear 152 drives the second transmission gear 151, achieving a reduction in speed, enabling the drive shaft 1511 to operate at a lower speed. On the one hand, it reduces the contact frequency between the gears, and on the other hand, it reduces the energy loss between the drive shaft 1511 and the sleeve 1532.

[0071] The third embodiment, as Figure 7 shown, the radius R3 of the large gear 123 is between 40 cm and 50 cm, and the radius R4 of the small gear 153 is between 3 cm and 5 cm. Such a design of the large gear 123 driving the small gear 153 means having the effect of reducing speed and increasing torque. Specifically, when the aluminum plate starts to move forward and applies frictional force to the conductive roller 120, the large gear 123 connected to the conductive roller 120 is subjected to the force and transmits this force to the small gear 153 meshing with it. Since the number of teeth of the large gear 123 is more than that of the small gear 153, the small gear 153 will rotate at a higher speed, and at the same time, a greater torque is transmitted to the transmission shaft 1531. In this way, even at a lower moving speed of the aluminum plate, sufficient force can be provided to overcome the static friction and help achieve a smooth start.

[0072] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum plate oxidation treatment process, characterized in that: The steps include: S1, the aluminum plate is subjected to an electric current treatment through a conductive device (100); S2, then entering the electrolytic cell (200) for electrolytic treatment; The conductive device (100) comprises a base (110) and a conductive roller (120), wherein the conductive roller (120) is rotatably connected to the base (110), and the aluminum plate is in close and large-area contact with the conductive roller (120); S3, after passing through the electrolytic cell (200), entering the surface treatment equipment (300); S4, then enter the drying equipment (400); S5, after drying, the aluminum plate is rolled up; Among them, the winding action is the power source during the movement of the aluminum plate; The conductive roller (120) can maintain synchronous movement with low energy loss when the aluminum plate moves, so that the aluminum plate moves smoothly without breaking or being damaged; When the aluminum plate stops moving, the conductive roller (120) stops rotating immediately; Wherein, a rolling auxiliary component is arranged adjacent to the conductive roller (120); A rotating shaft (121) is coaxially arranged on a side of the conductive roller (120) facing the rolling auxiliary component; The rolling auxiliary component is used to provide driving force to the rotating shaft (121); The driving force is less than or equal to the load on the rotating shaft (121); The rolling auxiliary assembly comprises a support (150), a first gear set, a second gear set and a motor (130), wherein the support (150) and the motor (130) are both mounted on a base (110); The output end of the motor (130) is connected to a drive shaft (1511) via a first gear set; The end of the rotating shaft (121) is connected to a transmission shaft (1531) via a second gear set, so that the load on the rotating shaft (121) acts on the transmission shaft (1531); The drive shaft (1511) and the transmission shaft (1531) are in frictional contact with each other under the support of the support (150); when the drive shaft (1511) rotates, the friction force generated by the frictional contact constitutes the driving force.

2. The aluminum plate oxidation treatment process according to claim 1, characterized in that: An acidic electrolyte is added into the electrolytic cell (200); Acidic electrolytes include sulfuric acid and oxalic acid; The conductive roller (120) is in contact with the aluminum plate so that the aluminum plate is energized to serve as an anode for thermoelectrochemical oxidation. As the current continues to flow, a protective film composed of aluminum oxide is formed on the surface of the aluminum plate.

3. The aluminum plate oxidation treatment process according to claim 2, characterized in that: The aluminum plate enters the upper vertex of the conductive roller (120) from the lower side, and then enters the electrolytic cell (200) from the lower side, so as to increase the contact area and contact pressure between the aluminum plate and the conductive roller (120).

4. The aluminum plate oxidation treatment process according to claim 3, characterized in that: The diameter of the conductive roller (120) is 400-500 mm.

5. The aluminum plate oxidation treatment process according to claim 1, characterized in that: A docking chamber is provided in the support (150) along the axial direction of the drive shaft (1511) and the transmission shaft (1531); a sleeve (1532) is provided at the end of the transmission shaft (1531) located in the docking chamber; one end of the drive shaft (1511) is docked with the sleeve (1532), and the outer surface of the drive shaft (1511) is in contact with the inner surface of the sleeve (1532).

6. The aluminum plate oxidation treatment process according to claim 1, characterized in that: The first gear set comprises a bevel gear box (140), a first transmission gear (152) being provided on one side of the bevel gear box (140), and the bevel gear box (140) is used to connect the first transmission gear (152) to the output of the motor (130); The end of the driving shaft (1511) is coaxially fixedly connected to a second transmission gear (151), and the second transmission gear (151) is meshed with the first transmission gear (152); The second gear set comprises a large gear (123) and a small gear (153) that mesh with each other, the large gear (123) being coaxially connected to the rotating shaft (121), and the small gear (153) being coaxially fixedly connected to the transmission shaft (1531).

7. The aluminum plate oxidation treatment process according to claim 6, characterized in that: The radius of the first transmission gear (152) is 3 cm to 5 cm, and the radius of the second transmission gear (151) is 8 cm to 10 cm.

8. The aluminum plate oxidation treatment process according to claim 7, characterized in that: The radius of the large gear (123) is 40 cm to 50 cm, and the radius of the small gear (153) is 3 cm to 5 cm.

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