A multi-stage etching apparatus for producing an anodic etching foil

Abstract

The utility model discloses a kind of multi-section corrosion equipment of anode etching foil production, including outer frame, the inside of outer frame is equipped with three evenly distributed electrolytic cell, further including auxiliary mechanism;Auxiliary mechanism: it includes connecting pipe, solenoid valve one, cooling pipe and stirring assembly, the front wall left and right ends of electrolytic cell are respectively through setting with connecting pipe, the middle part of connecting pipe is connected with solenoid valve one, the inside lower end of electrolytic cell is equipped with cooling pipe, this multi-section corrosion equipment of anode etching foil production, by detecting element and cooling element, electrolyte in anode foil multi-section corrosion process can be automatically cooled operation, avoid because electrolyte temperature is too high and lead to the oxidation corrosion effect reduction of anode foil, while device passes through element, so that electrolyte is in flowing state, avoid because the electrolyte solubility that anode foil contacts drops and to anode foil oxidation corrosion rate produce influence.

Description

Technical Field

[0001] This utility model relates to the field of anodic corrosion foil production technology, specifically a multi-stage corrosion equipment for anodic corrosion foil production. Background Technology

[0002] Anode foil refers to aluminum foil used as the anode in electrolytic capacitors. It is made by first expanding the surface area of ​​high-purity aluminum foil through an electrolytic corrosion process, and then forming an oxide film on the surface through an electrochemical process. The anode foil is corroded using corrosion equipment. In the prior art, patent CN 217266129 U discloses a corrosion device for controlling the anode and cathode sides of high-voltage anode foil, including a workbench and a corrosion tank. The corrosion tank is located on one side of the top of the workbench, and an adapter is located inside the corrosion tank. This utility model solves the problem that after the existing electrolytic solution is used up, impurities inside the solution need to be manually removed and the electrolytic solution is recycled, which is cumbersome and time-consuming. The anode foil is wrapped around the outer surface of the adapter, and the electric lifting rod is activated to raise the recycling tank, causing the electrolytic solution inside the drain hole to be discharged into the corrosion tank through the drainage pipe. After corrosion is complete, the recovery tank descends and the corrosion tank rises. Electrolyte solution is discharged into the recovery tank through reflux holes and drainage pipes. The filter screen installed inside the reflux holes filters impurities, facilitating their collection. However, during the oxidation reaction between the anode foil and the electrolyte, heat is generated, and a large amount of heat accumulates in the electrolyte, causing the electrolyte temperature to rise. If the electrolyte temperature rises to a certain level, it will affect the oxidation reaction rate between the anode foil and the electrolyte, resulting in a reduction in the oxidation corrosion effect of the anode foil. Therefore, we propose a multi-stage corrosion equipment for the production of anode corrosion foil. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a multi-stage corrosion equipment for the production of anodic corrosion foil. This device can automatically cool the electrolyte in the multi-stage corrosion process of the anodic foil through detection and cooling elements, so as to avoid the reduction of the oxidation corrosion effect of the anodic foil due to excessive electrolyte temperature. At the same time, the device keeps the electrolyte in a flowing state through the elements, so as to avoid the decrease in electrolyte solubility in the anodic foil contact with the anodic foil from affecting the oxidation corrosion rate of the anodic foil. This can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage corrosion equipment for producing anodic corrosion foil, comprising an outer frame, wherein three uniformly distributed electrolytic cells are provided inside the outer frame, and an auxiliary mechanism is also included;

[0005] Auxiliary mechanism: It includes connecting pipes, solenoid valve 1, cooling pipes, and stirring components. The connecting pipes are respectively installed through the left and right ends of the front wall of the electrolytic cell. Solenoid valve 1 is connected in series in the middle of each connecting pipe. Cooling pipes are provided at the lower end of the electrolytic cell. The left and right ends of the cooling pipes are connected to the adjacent connecting pipes. Stirring components are provided inside the electrolytic cell. This device can automatically cool the electrolyte during the multi-stage corrosion process of the anode foil through detection and cooling elements, so as to avoid the reduction of the oxidation corrosion effect of the anode foil due to excessive electrolyte temperature. At the same time, the device keeps the electrolyte in a flowing state through the elements, so as to avoid the decrease of electrolyte solubility in the anode foil contacting the anode foil, which would affect the oxidation corrosion rate of the anode foil.

[0006] Furthermore, it also includes a microcontroller, which is located outside the outer frame. The input terminal of the microcontroller is electrically connected to an external power supply, and the output terminal of the microcontroller is electrically connected to the input terminal of the solenoid valve, which facilitates the control of the electrical components inside the device.

[0007] Furthermore, the electrolytic cell is provided with two symmetrically distributed bearing seats at both the front and rear ends of the upper side. The two longitudinally adjacent bearing seats and the left and right ends inside the electrolytic cell are rotatably connected by a rotating shaft to guide, support and limit the movement of the anode foil in the multi-section corrosion equipment.

[0008] Furthermore, the auxiliary mechanism also includes temperature sensors, which are respectively installed at the left and right ends of the front and rear walls of the electrolytic cell. The temperature sensors are bidirectionally electrically connected to the microcontroller to measure and upload the temperature of the electrolyte in the multi-stage corrosion equipment.

[0009] Furthermore, the stirring assembly includes a second rotating shaft, stirring blades, and a low-speed motor. The stirring blades are rotatably connected to the bottom wall of the electrolytic cell via the second rotating shaft. A low-speed motor is provided on the lower side of the electrolytic cell. The input end of each low-speed motor is electrically connected to the output end of the microcontroller. The output shaft of each low-speed motor is fixedly connected to the lower end of the adjacent second rotating shaft. This ensures that the electrolyte around the anode foil is in a flowing state, preventing the anode foil from consuming electrolyte due to oxidation, which would lead to a decrease in the electrolyte concentration around the anode foil and thus reduce the subsequent oxidation reaction rate of the anode foil.

[0010] Furthermore, it also includes connecting seats, which are respectively set on the front and rear sides of the upper right end of the rightmost electrolytic cell. The connecting seats are rotatably connected by two vertically distributed conveying rollers through a rotating shaft three. A servo motor is provided on the rear side of the rear connecting seat. The input end of the servo motor is electrically connected to the output end of the microcontroller. The output shaft of the servo motor is fixedly connected to the rear end of the upper rotating shaft three, so as to convey the anode foil in the multi-stage corrosion equipment for the production of anode corrosion foil in multiple stages.

[0011] Furthermore, each of the lower ends of the front wall of the electrolytic cell is provided with a drain pipe, and each drain pipe is connected in series with a second solenoid valve. The input end of the second solenoid valve is electrically connected to the output end of the microcontroller, which facilitates the discharge of the electrode liquid after use in the multi-stage corrosion equipment.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The multi-stage corrosion equipment for producing anodic corrosion foil has the following advantages:

[0013] Multi-stage corrosion equipment using anodic corrosion foil automatically cools the electrolyte during the multi-stage corrosion process of the anodic foil through cooling pipes and temperature sensors. This prevents the electrolyte temperature from exceeding the optimal oxidation reaction temperature range of the anodic foil, which would reduce the oxidation corrosion effect. At the same time, the equipment stirs the electrolyte to keep it in a flowing state, ensuring a relatively uniform electrolyte concentration within the equipment. This prevents the anodic foil from consuming nearby electrolyte during the oxidation reaction, which would lower the electrolyte concentration around the anodic foil and reduce the subsequent oxidation reaction rate of the anodic foil. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the wiring structure of the external anode foil of this utility model;

[0017] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the electrolytic cell of this utility model.

[0019] In the diagram: 1 Outer frame, 2 Microcontroller, 3 Electrolytic cell, 4 Bearing seat, 5 Rotary shaft one, 6 Guide roller, 7 Auxiliary mechanism, 71 Connecting pipe, 72 Solenoid valve one, 73 Cooling pipe, 74 Temperature sensor, 75 Stirring assembly, 751 Rotary shaft two, 752 Stirring blade, 753 Low-speed motor, 8 Connecting seat, 9 Rotary shaft three, 10 Feeding roller, 11 Servo motor, 12 Drain pipe, 13 Solenoid valve two. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This embodiment provides a technical solution: a multi-stage corrosion equipment for producing anodic corrosion foil, including an outer frame 1, with three evenly distributed electrolytic cells 3 inside the outer frame 1, and a single-chip microcomputer 2 located outside the outer frame 1. The input terminal of the single-chip microcomputer 2 is electrically connected to an external power supply. Two symmetrically distributed bearing seats 4 are provided at both the front and rear ends of the upper side of each electrolytic cell 3. Guide rollers 6 are rotatably connected between two longitudinally adjacent bearing seats 4 and between the left and right ends inside the electrolytic cell 3 via rotating shafts 5 (the rotating connection ends of rotating shafts 5 are rotatably connected to corresponding parts via sealed bearings). It also includes connecting seats 8, which are respectively located on the front and rear sides of the upper right end of the rightmost electrolytic cell 3. Two vertically distributed feeding rollers 10 are rotatably connected between the two sides via a rotating shaft 3 9. A servo motor 11 is provided on the rear side of the connecting seat 8. The input end of the servo motor 11 is electrically connected to the output end of the microcontroller 2. The output shaft of the servo motor 11 is fixedly connected to the rear end of the rotating shaft 3 9 on the upper side. Drain pipes 12 are provided through the lower end of the front wall of the electrolytic cell 3. Solenoid valves 13 are connected in series in the middle of each drain pipe 12. The input end of each solenoid valve 13 is electrically connected to the output end of the microcontroller 2. The electrolyte is poured into the electrolytic cell 3. The connecting pipe 71 on the left side of the electrolytic cell 3 is connected to the external coolant supply pipe. The connecting pipe 71 on the right side of the electrolytic cell 3 is connected to the external coolant outlet pipe. Then, the initial end of the anode foil is arranged according to... Figure 3As shown, the anode foil is fed through a guide roller 6 for subsequent movement support and limitation. During multi-stage etching of the anode foil, the microcontroller 2 starts the servo motor 11, causing its output shaft to drive the corresponding rotating shaft 9 to rotate in the reverse direction. The rotating shaft 9 drives the corresponding conveying roller 10 to rotate in the reverse direction synchronously. During the reverse rotation, the conveying roller 10 contacts the surface of the anode foil, thereby using contact friction to convey the anode foil from left to right through multi-stage etching. During the movement of the anode foil, when it comes into contact with the electrolyte in the electrolytic cell 3, the anode foil acts as the positive electrode and interacts with the electrolyte. The electrolyte undergoes an oxidation reaction, and the aluminum atoms on the surface of the anode foil lose electrons and become aluminum ions, which enter the electrolyte. Through electrolysis, tiny pores are formed on the surface of the anode foil, increasing the surface area of ​​the anode foil. The device uses three sets of electrolytic cells 3 to perform multi-stage corrosion operations on the anode foil in sequence, thereby improving the corrosion effect of the device on the anode foil. When the electrolyte in the electrolytic cell 3 is drained and replaced, the microcontroller 2 starts the solenoid valve 13 to release the seal on the drain pipe 12, allowing the electrolyte in the electrolytic cell 3 to be drained through the drain pipe 12. It also includes an auxiliary mechanism 7.

[0022] Auxiliary mechanism 7 includes connecting pipes 71, solenoid valve 72, cooling pipes 73, and stirring assembly 75. Connecting pipes 71 are respectively installed through the left and right ends of the front wall of electrolytic cell 3. Solenoid valve 72 is connected in series in the middle of each connecting pipe 71. Cooling pipes 73 are installed at the lower end of the interior of electrolytic cell 3, with both ends of the cooling pipes 73 connected to adjacent connecting pipes 71. Stirring assembly 75 is installed inside each electrolytic cell 3. The output of microcontroller 2 is electrically connected to the input of solenoid valve 72. Auxiliary mechanism 7 also includes temperature sensors 74, which are respectively installed at the left and right ends of the front and rear walls of electrolytic cell 3. Temperature sensors 74 are bidirectionally electrically connected to microcontroller 2. The stirring assembly 75 includes a rotating shaft 751 and stirring blades 752. The low-speed motor 753 and the stirring plate 752 are rotatably connected to the bottom wall of the electrolytic cell 3 via a second rotating shaft 751 (the second rotating shaft 751 and the bottom wall of the electrolytic cell 3 are rotatably connected via a second sealed bearing). A low-speed motor 753 is installed on the lower side of the electrolytic cell 3. The input terminals of the low-speed motors 753 are electrically connected to the output terminals of the microcontroller 2. The output shafts of the low-speed motors 753 are fixedly connected to the lower ends of the adjacent second rotating shafts 751. During the multi-stage corrosion of the anode foil, heat is generated due to the oxidation reaction between the anode foil and the electrolyte. The microcontroller 2 activates the temperature sensor 74. The temperature sensor 74 operates, and its thermistor comes into contact with the electrolyte. The temperature sensor measures the change in resistivity of its thermistor as the electrolyte temperature changes. The internal temperature of the electrolyte is obtained, and then the temperature sensor 74 transmits the measured result to the microcontroller 2 as an electrical signal. Each electrolytic cell 3 is equipped with four evenly distributed temperature sensors 74 to ensure the accuracy of the electrolyte temperature measurement value obtained by the microcontroller 2. When the microcontroller 2 detects that the temperature of the electrolyte in the electrolytic cell 3 is higher than the suitable temperature range for the oxidation reaction between the anode foil and the electrolyte, the microcontroller 2 opens the solenoid valve 72, allowing coolant to enter the cooling pipe 73 through the external coolant supply pipe and the corresponding connecting pipe 71. The coolant exchanges heat with the electrolyte in the electrolytic cell 3 through the wall of the cooling pipe 73, thereby reducing the temperature of the electrolyte in the electrolytic cell 3 and ensuring that the oxidation reaction between the anode foil and the electrolyte is maintained at a constant level. Within a suitable reaction temperature range, the corrosion effect of the anode foil is indirectly improved. Simultaneously, the microcontroller 2 starts a low-speed motor 753, causing its output shaft to drive the rotating shaft 751 to rotate. The rotating shaft 751 then drives the stirring plate 752 to rotate. The rotation of the stirring plate 752 ensures that the electrolyte in the electrolytic cell 3 is always in a flowing state, preventing a decrease in the electrolyte concentration in contact with the anode foil due to stagnation, which would otherwise lead to a decrease in the oxidation reaction rate of the anode foil. This device, through detection and cooling elements, can automatically cool the electrolyte during the multi-stage corrosion process of the anode foil.To prevent the reduction in the oxidation and corrosion effect of the anode foil due to excessively high electrolyte temperature, the device uses components to keep the electrolyte in a flowing state, thus preventing a decrease in the electrolyte solubility in the anode foil from affecting the oxidation and corrosion rate.

[0023] The working principle of the multi-stage etching equipment for producing anodic corrosion foil provided by this utility model is as follows: Electrolyte is poured into the electrolytic cell 3. The connecting pipe 71 on the left side of the electrolytic cell 3 is connected to the external coolant supply pipe, and the connecting pipe 71 on the right side of the electrolytic cell 3 is connected to the external coolant outlet pipe. Then, the initial end of the anodic foil is... Figure 3As shown, the anode foil is fed through a guide roller 6 for subsequent movement support and limitation. During multi-stage etching of the anode foil, the microcontroller 2 starts the servo motor 11, causing its output shaft to drive the corresponding rotating shaft 9 to rotate in the reverse direction. The rotating shaft 9 drives the corresponding conveying roller 10 to rotate in the reverse direction synchronously. During the reverse rotation, the conveying roller 10 contacts the surface of the anode foil, thereby using contact friction to convey the anode foil from left to right through multi-stage etching. During the movement of the anode foil, when it comes into contact with the electrolyte in the electrolytic cell 3, the anode foil, as the positive electrode, undergoes an oxidation reaction with the electrolyte. The aluminum atoms on the surface of the anode foil lose electrons and become aluminum ions, which enter the electrolyte. Through electrolysis, the anode foil... Tiny etched pits are formed on the surface of the anode foil, increasing its surface area. The device uses three sets of electrolytic cells 3 to perform multi-stage corrosion on the anode foil sequentially, improving the corrosion effect. During the multi-stage corrosion of the anode foil, heat is generated due to the oxidation reaction between the anode foil and the electrolyte. The microcontroller 2 activates the temperature sensor 74. The temperature sensor 74 operates, and its thermistor comes into contact with the electrolyte. By measuring the change in resistivity of its thermistor with the change in electrolyte temperature, the internal temperature of the electrolyte is measured. Subsequently, the temperature sensor 74 transmits the measured result to the microcontroller 2 as an electrical signal. Each electrolytic cell 3 is equipped with four evenly distributed temperature sensors. Sensor 74 ensures the accuracy of the electrolyte temperature measurement value obtained by the microcontroller 2 in the electrolytic cell 3. When the microcontroller 2 detects that the temperature of the electrolyte in the electrolytic cell 3 is higher than the suitable temperature range for the oxidation reaction between the anode foil and the electrolyte, the microcontroller 2 opens the solenoid valve 72, allowing the coolant to enter the cooling pipe 73 through the external coolant supply pipe and the corresponding connecting pipe 71. The coolant exchanges heat with the electrolyte in the electrolytic cell 3 through the wall of the cooling pipe 73, thereby reducing the temperature of the electrolyte in the electrolytic cell 3. This ensures that the oxidation reaction between the anode foil and the electrolyte is always within a suitable reaction temperature range, thus indirectly improving the corrosion effect of the anode foil. At the same time, the microcontroller 2 activates... The low-speed motor 753 drives the output shaft to rotate the rotating shaft 751, which in turn drives the stirring plate 752 to rotate. The rotation of the stirring plate 752 keeps the electrolyte in the electrolytic cell 3 in a constant state of flow, ensuring that the electrolyte in contact with the anode foil is always in a flowing state. This prevents the electrolyte in the electrolytic cell 3 from becoming stagnant, which would reduce the concentration of the electrolyte in contact with the anode foil and consequently decrease the oxidation reaction rate of the anode foil. When the electrolyte in the electrolytic cell 3 needs to be drained and replaced, the microcontroller 2 activates the solenoid valve 13 to release the blockage of the drain pipe 12, allowing the electrolyte in the electrolytic cell 3 to be drained through the drain pipe 12.

[0024] It is worth noting that the microcontroller 2 disclosed in the above embodiments can be an MSP430, the temperature sensor 74 can be an AM2303, the low-speed motor 753 can be a D140TYD, the servo motor 11 can be a DT-D02, and both the first solenoid valve 72 and the second solenoid valve 13 can be ZCT miniature stainless steel solenoid valves. The microcontroller 2 controls the operation of the first solenoid valve 72, the temperature sensor 74, the low-speed motor 753, the servo motor 11, and the second solenoid valve 13 using methods commonly used in the prior art.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-stage etching device for producing anodic corrosion foil, comprising an outer frame (1), wherein the outer frame (1) contains three uniformly distributed electrolytic cells (3), characterized in that: It also includes auxiliary mechanisms (7); Auxiliary mechanism (7): It includes a connecting pipe (71), a solenoid valve (72), a cooling pipe (73) and a stirring assembly (75). The connecting pipe (71) is respectively installed through the left and right ends of the front wall of the electrolytic cell (3). A solenoid valve (72) is connected in series in the middle of the connecting pipe (71). A cooling pipe (73) is provided at the lower end of the interior of the electrolytic cell (3). The left and right ends of the cooling pipe (73) are connected to the adjacent connecting pipe (71). A stirring assembly (75) is provided inside the electrolytic cell (3).

2. The multi-stage etching equipment for producing anodic corrosion foil according to claim 1, characterized in that: It also includes a microcontroller (2), which is located outside the outer frame (1). The input terminal of the microcontroller (2) is electrically connected to an external power supply, and the output terminal of the microcontroller (2) is electrically connected to the input terminal of the solenoid valve (72).

3. The multi-stage etching equipment for producing anodic corrosion foil according to claim 1, characterized in that: The electrolytic cell (3) has two symmetrically distributed bearing seats (4) at both the front and rear ends of the upper side. The two longitudinally adjacent bearing seats (4) and the left and right ends inside the electrolytic cell (3) are rotatably connected by a rotating shaft (5) to guide rollers (6).

4. The multi-stage etching equipment for producing anodic corrosion foil according to claim 2, characterized in that: The auxiliary mechanism (7) also includes a temperature sensor (74), which is respectively located at the left and right ends of the front and rear walls of the electrolytic cell (3). The temperature sensor (74) is bidirectionally electrically connected to the microcontroller (2).

5. A multi-stage etching equipment for producing anodic corrosion foil according to claim 2, characterized in that: The stirring assembly (75) includes a second rotating shaft (751), stirring blades (752), and a low-speed motor (753). The stirring blades (752) are rotatably connected to the bottom wall of the electrolytic cell (3) via the second rotating shaft (751). The lower side of the electrolytic cell (3) is provided with a low-speed motor (753). The input end of the low-speed motor (753) is electrically connected to the output end of the microcontroller (2). The output shaft of the low-speed motor (753) is fixedly connected to the lower end of the adjacent second rotating shaft (751).

6. The multi-stage etching equipment for producing anodic corrosion foil according to claim 2, characterized in that: It also includes a connecting seat (8), which is respectively set on the front and rear sides of the upper right end of the rightmost electrolytic cell (3). The connecting seats (8) are rotatably connected to two vertically distributed feeding rollers (10) through a rotating shaft three (9). A servo motor (11) is provided on the rear side of the connecting seat (8). The input end of the servo motor (11) is electrically connected to the output end of the microcontroller (2). The output shaft of the servo motor (11) is fixedly connected to the rear end of the rotating shaft three (9) on the upper side.

7. A multi-stage etching equipment for producing anodic corrosion foil according to claim 2, characterized in that: The lower end of the front wall of the electrolytic cell (3) is provided with a drain pipe (12), and a solenoid valve (13) is connected in series in the middle of the drain pipe (12). The input end of the solenoid valve (13) is electrically connected to the output end of the microcontroller (2).

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