Electrolytic rust removal equipment with automatic control of electrode movement

Abstract

The invention discloses an electrolytic derusting device with automatic control of electrode movement, which belongs to the technical field of electrolytic equipment. The technical scheme is as follows: the device comprises a liquid storage barrel, an anode bracket is arranged in the liquid storage barrel, columnar anodes are evenly distributed on the anode bracket, and there is a gap between the cathode and the anode; a guide column is arranged on the top plate, and the bottom plate is arranged on the bottom wall of the liquid storage barrel through a spring; a mounting frame is arranged above the liquid storage barrel, the guide columns all extend out of the mounting frame and the extended ends are connected through a connecting plate, an inner gear ring is rotatably arranged on the upper part of the inner wall of the liquid storage barrel, a shaft 1 is rotatably arranged on the horizontal plate, a spur gear 1 is arranged at the lower end of the shaft 1, a bevel gear 1 is arranged at the upper end of the shaft 1, a shaft 2 is rotatably arranged on the vertical plate, a bevel gear 2 is arranged at the outer end of the shaft 2, a spur gear 2 is arranged at the inner end of the shaft 2, and a rack is arranged on the guide column close to the spur gear 2; and a cam is also provided to drive the anode bracket to move up and down. The beneficial effects of the invention are as follows: an electrolytic derusting device with automatic control of electrode movement is provided.

Description

Technical Field

[0001] The invention belongs to the technical field of electrolytic equipment, and in particular relates to an electrolytic rust removal device capable of automatically controlling the movement of electrodes. Background Art

[0002] Electrolytic rust removal is a method of removing rust from metal surfaces through electrochemical reactions. The principle is to apply current to the electrolyte, utilize the oxidation reaction of the anode and the reduction reaction of the cathode, and convert the rust substances (such as oxides) on the metal surface into ions and dissolve them in the electrolyte, thereby achieving the purpose of rust removal. After long-term use of existing rust removal equipment, a passivation layer (such as an oxide layer) may form on the electrode surface, affecting the conductivity and electrolysis efficiency of the electrode, or deposits formed by rust substances or other impurities may accumulate on the electrode surface, resulting in reduced electrode efficiency.

[0003] In view of the above problems, an electrolytic rust removal device with movable electrodes is designed to reduce the time of passivation layer formation and the accumulation of deposits through small movements. Summary of the invention

[0004] The object of the present invention is to provide an electrolytic rust removal device which can automatically control the movement of electrodes.

[0005] The present invention is realized by the following measures: an electrolytic rust removal device with automatically controlled electrode movement, characterized in that it comprises a liquid storage barrel with an open upper end, an anode support made of a non-conductive material is concentrically arranged in the liquid storage barrel, a plurality of columnar anodes are evenly distributed circumferentially on the anode support, an arc-shaped cathode corresponding to the columnar anode is also arranged in the liquid storage barrel, and there is a gap between the arc-shaped cathode and the columnar anode;

[0006] The anode support comprises a bottom plate and a top plate, the upper and lower ends of the columnar anode are fixedly provided with connecting studs, the upper end of the columnar anode extends out of the top plate and is fixed by a nut, the lower end of the columnar anode extends out of the bottom plate and is fixed by a nut, two guide columns are symmetrically arranged on the top plate, the bottom plate is arranged on the bottom wall of the liquid storage barrel through a plurality of springs, and a delivery hole is concentrically arranged on the top plate and located on the inner side of the columnar anode;

[0007] A mounting frame is fixedly arranged above the liquid storage barrel, and both of the two guide columns extend out of the mounting frame and the extended ends are connected by a connecting plate, an inner gear ring is rotatably arranged on the upper part of the inner wall of the liquid storage barrel, a horizontal plate is fixedly arranged on the liquid storage barrel and located above the inner gear ring, the inner end of the horizontal plate is connected to the mounting frame through a vertical plate, an axis 1 is rotatably arranged on the horizontal plate, a spur gear 1 meshing with the inner gear ring is arranged at the lower end of the axis 1, a bevel gear 1 is arranged at the upper end of the axis 1, an axis 2 is rotatably arranged on the vertical plate, a bevel gear 2 meshing with the bevel gear 1 is arranged at the outer end of the axis 2, a spur gear 2 meshing with the spur gear 2 is arranged at the inner end of the axis 2, a rack meshing with the spur gear 2 is fixedly arranged on the guide column close to the spur gear 2, and the arc-shaped cathode is arranged below the inner gear ring and rotates with the inner gear ring;

[0008] It also includes a cam for driving the anode support to move up and down. The cam is rotatably arranged on the mounting frame. The motor for driving the cam to rotate is fixed on the mounting frame. The cam is located below the connecting plate and the outer wall is tangent to the connecting plate.

[0009] An annular conductive plate is concentrically arranged above the bottom plate and the top plate, and the annular conductive plate is provided with a through hole for allowing the connection stud to pass through, and the annular conductive plate is provided with a plurality of wiring terminals. The annular conductive plate can facilitate the electrical connection of the columnar anode.

[0010] The lower end surface of the inner gear ring is concentrically and fixedly provided with an annular plate, the lower end of the annular plate is provided with an inner folding ring plate, the inner folding ring plate is provided with a plurality of arc-shaped limiting openings corresponding to the arc-shaped cathode one by one, the arc-shaped cathode is slidably arranged in the arc-shaped limiting openings and the lower end of the arc-shaped cathode is against the bottom plate.

[0011] Limiting posts are symmetrically arranged on the inner folding ring plate and on both sides of the arc-shaped cathode, and limiting grooves matching with the arc-shaped cathode are arranged on the limiting posts.

[0012] An annular inner cylinder is concentrically arranged on the bottom wall of the liquid storage barrel, an annular outer cylinder is concentrically arranged on the bottom plate, the annular outer cylinder is sleeved on the outside of the annular inner cylinder, and a plurality of sealing rings are arranged between the annular outer cylinder and the annular inner cylinder, and all springs are arranged in the annular inner cylinder. The spring is hidden between the annular inner cylinder and the annular outer cylinder, which can effectively ensure the service life of the spring.

[0013] The number of teeth of the bevel gear 2 is greater than that of the bevel gear 1. Even if the rotation angle of the bevel gear 2 is small, the bevel gear 1 can achieve a slightly larger rotation angle. This can minimize the distance that the rack and the cylindrical anode move up and down. The number of teeth of the bevel gear 2 is generally 1.5 times the number of teeth of the bevel gear 1.

[0014] It also includes a PLC (Programmable Logic Controller) for controlling the motor, which is implemented using existing technology and will not be described in detail here.

[0015] A cleaning port is provided at the bottom of the liquid storage barrel, the cleaning port is sealed by a detachable cover plate, and the cleaning port is used for replacing the electrolyte and cleaning impurities.

[0016] Working principle:

[0017] The metal to be derusted is placed in a liquid storage barrel, generally on a bottom plate, and electrically connected to a columnar anode via a cable, and then the columnar anode and an arc-shaped cathode are connected to a power supply device;

[0018] During use, the motor can be automatically started and shut down according to the PLC control. When the motor rotates, the cam rotates. During the contact process with the connecting plate, the cam continuously moves the connecting plate up and down, and the guide column connected to the connecting plate and the rack connected to the guide column move up and down; when the rack moves down, the rack drives the spur gear 2 meshing with it to rotate, and at the same time, the bevel gear 2 coaxial with the spur gear 2 rotates, and the bevel gear 2 drives the bevel gear 1 meshing with it to rotate, and at the same time, the spur gear 1 coaxial with the bevel gear rotates, and the spur gear 1 drives the inner gear ring meshing with it to rotate, and the inner gear ring drives the arc-shaped cathode to rotate forward during the rotation process. Similarly, when the rack moves up, the inner gear ring will drive the arc-shaped cathode to reverse during the rotation process.

[0019] In addition, since the cam drives the rack to move up and down a limited distance, the inner gear ring can only achieve a full circle rotation, and thus can only achieve a small amplitude forward and reverse swing. The forward and reverse swing angle of the inner gear ring is generally between 5-20 degrees. If it is too large, it will affect the stability between the anode and the cathode.

[0020] During the up and down movement of the guide column, the columnar anode will be driven to move up and down. In order to avoid the radial relative position of the columnar anode and the corresponding arc-shaped cathode remaining unchanged, the arc-shaped cathode adopts a sliding setting. During the up and down movement of the columnar anode, the spring will be compressed and released through the bottom plate. In this way, when the spring is compressed, the arc-shaped cathode will also move downward under the action of gravity. When the spring is released, the arc-shaped cathode will move upward, thus ensuring the synchronization of the arc-shaped cathode and the columnar anode.

[0021] The width of the arc-shaped cathode is generally greater than the outer diameter of the corresponding columnar anode, that is, the arc-shaped cathode will not separate from the columnar anode during the forward and reverse swinging process.

[0022] The technical solution provided by the embodiment of the present invention has the following beneficial effects: a small positive and negative swing of the cathode is achieved by moving the anode up and down over a short distance, the electrode is moved during the electrolysis process, the static electrode is turned into a dynamic electrode, the time for forming the passivation layer and the accumulation of deposits are reduced, and part of the deposits can also be washed away by the relative movement between the electrode and the electrolyte. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings used in the embodiments. Obviously, the drawings listed below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention (the cam is at the highest point);

[0025] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0026] Figure 3 : is a schematic diagram of the internal structure of the liquid storage barrel after being cut open in an embodiment of the present invention (the cam is at the lowest point);

[0027] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0028] Figure 5 is a schematic diagram of the structure of the embodiment of the present invention without the liquid storage barrel and the mounting frame;

[0029] Figure 6 is a schematic structural diagram of an anode support in an embodiment of the present invention;

[0030] Figure 7 It is a schematic structural diagram of a liquid storage barrel and related parts in an embodiment of the present invention;

[0031] Figure 8 Schematic diagram of the structure of the inner gear ring in an embodiment of the present invention.

[0032] In the attached drawings, the list of components represented by each reference numeral is as follows: 1. Liquid storage barrel; 2. Anode bracket; 3. Columnar anode; 4. Arc-shaped cathode; 5. Mounting frame; 6. Horizontal plate; 7. Vertical plate; 8. Inner gear ring; 9. Spur gear one; 10. Bevel gear one; 11. Bevel gear two; 12. Spur gear two; 13. Rack; 14. Cam; 15. Motor; 16. Annular conductive plate; 17. Spring; 101. Annular inner cylinder; 102. Annular boss; 103. Annular slide; 104. Cleaning port; 201. Bottom plate; 202. Top plate; 203. Guide column; 204. Connecting plate; 205. Annular outer cylinder; 301. Connecting stud; 801. Annular plate; 802. Inner folding ring plate; 803. Limiting column; 80201. Arc-shaped limiting port; 80301. Limiting groove. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0034] See also Figure 1-Figure 8 , an electrolytic rust removal device with automatic control of electrode movement, characterized in that it comprises a liquid storage barrel 1 with an open upper end, an anode support 2 made of a non-conductive material is concentrically arranged in the liquid storage barrel 1, a plurality of columnar anodes 3 are uniformly distributed circumferentially on the anode support 2, and an arc-shaped cathode 4 corresponding to the columnar anode 3 is also arranged in the liquid storage barrel 1, and there is a gap between the arc-shaped cathode 4 and the columnar anode 3;

[0035] The anode support 2 includes a bottom plate 201 and a top plate 202. The upper and lower ends of the columnar anode 3 are fixedly provided with connecting studs 301. The upper end of the columnar anode 3 extends out of the top plate 202 and is fixed by a nut. The lower end of the columnar anode 3 extends out of the bottom plate 201 and is fixed by a nut. Two guide columns 203 are symmetrically arranged on the top plate 202. The bottom plate 201 is arranged on the bottom wall of the liquid storage barrel 1 through a plurality of springs 17. A delivery hole is concentrically arranged on the top plate 202 and located on the inner side of the columnar anode 3.

[0036] A mounting frame 5 is fixedly provided above the liquid storage barrel 1, and two guide columns 203 extend out of the mounting frame 5 and the extended ends are connected through a connecting plate 204. An inner gear ring 8 is rotatably provided on the upper part of the inner wall of the liquid storage barrel 1. A horizontal plate 6 is fixedly provided on the liquid storage barrel 1 and located above the inner gear ring 8. The inner end of the horizontal plate 6 is connected to the mounting frame 5 through a vertical plate 7. A shaft 1 is rotatably provided on the horizontal plate 6. A spur gear 1 9 meshing with the inner gear ring 8 is provided at the lower end of the shaft 1, a bevel gear 10 is provided at the upper end of the shaft 1, and a shaft 2 is rotatably provided on the vertical plate 7. The outer end of the second shaft is provided with a bevel gear 11 meshing with the bevel gear 10, the inner end of the second shaft is provided with a spur gear 12, and a rack 13 meshing with the spur gear 12 is fixedly provided on the guide column 203 close to the spur gear 12. The arc-shaped cathode 4 is arranged below the inner gear ring 8 and rotates with the inner gear ring 8; an annular boss 102 is fixedly provided on the upper inner wall of the liquid storage barrel 1, and an annular groove 103 for placing the inner gear ring 8 is provided on the annular boss 102, and the outer edge of the inner gear ring 8 is slidably arranged in the annular groove 103.

[0037] It also includes a cam 14 for driving the anode bracket 2 to move up and down. The cam 14 is rotatably arranged on the mounting frame 5. The motor 15 for driving the cam 14 to rotate is fixed on the mounting frame 5. The cam 14 is located below the connecting plate 204 and the outer wall is tangent to the connecting plate 204.

[0038] An annular conductive plate 16 is concentrically disposed above the bottom plate 201 and the top plate 202. The annular conductive plate 16 is provided with a through hole for allowing the connection stud 301 to pass through, and a plurality of wiring terminals are provided on the annular conductive plate 16. The annular conductive plate 16 can facilitate the electrical connection of the columnar anode 3.

[0039] The lower end surface of the inner gear ring 8 is concentrically and fixedly provided with an annular plate 801, the lower end of the annular plate 801 is provided with an inner folding ring plate 802, and the inner folding ring plate 802 is provided with a plurality of arc-shaped limiting openings 80201 corresponding to the arc-shaped cathode 4 one by one, the arc-shaped cathode 4 is slidably arranged in the arc-shaped limiting openings 80201 and the lower end of the arc-shaped cathode 4 is against the bottom plate 201.

[0040] Limiting posts 803 are symmetrically arranged on the inner folding ring plate 802 and on both sides of the arc-shaped cathode 4 . The limiting posts 803 are provided with limiting grooves 80301 that match the arc-shaped cathode 4 .

[0041] An annular inner cylinder 101 is concentrically arranged on the bottom wall of the liquid storage barrel 1, an annular outer cylinder 205 concentric with the annular inner cylinder 101 is arranged on the bottom plate 201, the annular outer cylinder 205 is sleeved on the outside of the annular inner cylinder 101, and a plurality of sealing rings are arranged between the annular outer cylinder 205 and the annular inner cylinder 101, and all springs 17 are arranged in the annular inner cylinder 101. Hiding the spring 17 between the annular inner cylinder 101 and the annular outer cylinder 205 can effectively ensure the service life of the spring 17.

[0042] The number of teeth of bevel gear 2 11 is greater than that of bevel gear 1 10. Even if the rotation angle of bevel gear 2 11 is small, a slightly larger rotation angle of bevel gear 10 can be achieved. In this way, the distance of the rack 13 and the cylindrical anode moving up and down can be minimized. The number of teeth of bevel gear 2 11 is generally 1.5 times the number of teeth of bevel gear 10.

[0043] It also includes a PLC (Programmable Logic Controller) for controlling the motor 15, which is implemented using existing technology and will not be described in detail here.

[0044] A cleaning port 104 is provided at the bottom of the liquid storage barrel 1. The cleaning port 104 is sealed by a detachable cover plate. The cleaning port 104 is used for replacing the electrolyte and cleaning impurities.

[0045] Working principle:

[0046] The metal to be derusted is placed in the liquid storage barrel 1, generally placed on the bottom plate 201, and electrically connected to the columnar anode 3 through a cable, and then the columnar anode 3 and the arc-shaped cathode 4 are connected to the power supply device;

[0047] During use, the motor 15 can be automatically started and shut down according to the PLC control. When the motor 15 rotates, the cam 14 rotates. During the contact process with the connecting plate 204, the cam 14 continuously moves the connecting plate 204 up and down, and the guide column 203 connected to the connecting plate 204 and the rack 13 connected to the guide column 203 move up and down; when the rack 13 moves down, the rack 13 drives the spur gear 2 12 meshing with it to rotate, and at the same time, the bevel gear 2 11 coaxial with the spur gear 2 12 rotates, and the bevel gear 2 11 drives the bevel gear 10 meshing with it to rotate, and at the same time, the spur gear 1 9 coaxial with the bevel gear 10 rotates, and the spur gear 1 9 drives the inner gear ring 8 meshing with it to rotate, and the inner gear ring 8 drives the arc-shaped cathode 4 to rotate forward during the rotation process. Similarly, when the rack 13 moves up, the inner gear ring 8 will drive the arc-shaped cathode 4 to reverse during the rotation process.

[0048] In addition, since the cam 14 drives the rack 13 to move up and down a limited distance, the inner gear ring 8 can only achieve a full circle rotation, and therefore can only achieve a small amplitude forward and reverse swing. The forward and reverse swing angle of the inner gear ring 8 is generally between 5-20 degrees. If it is too large, it will affect the stability between the anode and the cathode.

[0049] During the up and down movement of the guide column 203, the columnar anode 3 will be driven to move up and down. In order to avoid the radial relative position of the columnar anode 3 and the corresponding arc-shaped cathode 4 remaining unchanged, the arc-shaped cathode 4 is set to slide. During the up and down movement of the columnar anode 3, the spring 17 will be compressed and released through the bottom plate 201. When the spring 17 is compressed, the arc-shaped cathode 4 will also move downward under the action of gravity. When the spring 17 is released, the arc-shaped cathode 4 moves upward, thus ensuring the synchronization of the arc-shaped cathode 4 and the columnar anode 3.

[0050] The width of the arc-shaped cathode 4 is generally greater than the outer diameter of the corresponding columnar anode 3 , that is, the arc-shaped cathode 4 will not separate from the columnar anode 3 during the forward and reverse swinging process.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrolytic rust removal device with automatic control of electrode movement, characterized in that: It comprises a liquid storage barrel with an open top, wherein an anode support made of a non-conductive material is concentrically arranged in the liquid storage barrel, and a plurality of columnar anodes are evenly distributed circumferentially on the anode support, and arc-shaped cathodes corresponding to the columnar anodes are also arranged in the liquid storage barrel, and there is a gap between the arc-shaped cathode and the columnar anode; The anode support comprises a bottom plate and a top plate, the upper and lower ends of the columnar anode are fixedly provided with connecting studs, the upper end of the columnar anode extends out of the top plate and is fixed by a nut, the lower end of the columnar anode extends out of the bottom plate and is fixed by a nut, two guide columns are symmetrically arranged on the top plate, the bottom plate is arranged on the bottom wall of the liquid storage barrel through a plurality of springs, and a delivery hole is concentrically arranged on the top plate and located on the inner side of the columnar anode; A mounting frame is fixedly arranged above the liquid storage barrel, and both of the two guide columns extend out of the mounting frame and the extended ends are connected by a connecting plate, an inner gear ring is rotatably arranged on the upper part of the inner wall of the liquid storage barrel, a horizontal plate is fixedly arranged on the liquid storage barrel and located above the inner gear ring, the inner end of the horizontal plate is connected to the mounting frame through a vertical plate, an axis 1 is rotatably arranged on the horizontal plate, a spur gear 1 meshing with the inner gear ring is arranged at the lower end of the axis 1, a bevel gear 1 is arranged at the upper end of the axis 1, an axis 2 is rotatably arranged on the vertical plate, a bevel gear 2 meshing with the bevel gear 1 is arranged at the outer end of the axis 2, a spur gear 2 meshing with the spur gear 2 is arranged at the inner end of the axis 2, a rack meshing with the spur gear 2 is fixedly arranged on the guide column close to the spur gear 2, and the arc-shaped cathode is arranged below the inner gear ring and rotates with the inner gear ring; It also includes a cam for driving the anode support to move up and down. The cam is rotatably arranged on the mounting frame. The motor for driving the cam to rotate is fixed on the mounting frame. The cam is located below the connecting plate and the outer wall is tangent to the connecting plate.

2. The electrolytic rust removal equipment with automatic control of electrode movement according to claim 1 is characterized in that: Annular conductive plates are concentrically arranged above the bottom plate and the top plate, the annular conductive plates are provided with through holes for allowing connecting studs to pass through, and the annular conductive plates are provided with a plurality of wiring terminals.

3. The electrolytic rust removal equipment with automatic control of electrode movement according to claim 1 is characterized in that: The lower end surface of the inner gear ring is concentrically and fixedly provided with an annular plate, the lower end of the annular plate is provided with an inner folding ring plate, the inner folding ring plate is provided with a plurality of arc-shaped limiting openings corresponding to the arc-shaped cathode one by one, the arc-shaped cathode is slidably arranged in the arc-shaped limiting openings and the lower end of the arc-shaped cathode is against the bottom plate.

4. The electrolytic rust removal device with automatic control of electrode movement according to claim 3 is characterized in that: Limiting posts are symmetrically arranged on the inner folding ring plate and on both sides of the arc-shaped cathode, and limiting grooves matching with the arc-shaped cathode are arranged on the limiting posts.

5. The electrolytic rust removal equipment with automatic control of electrode movement according to claim 1 is characterized in that: An annular inner cylinder is concentrically arranged on the bottom wall of the liquid storage barrel, an annular outer cylinder is concentric with the annular inner cylinder on the bottom plate, the annular outer cylinder is sleeved on the outside of the annular inner cylinder and a plurality of sealing rings are arranged between the annular outer cylinder and the annular inner cylinder, and all springs are arranged in the annular inner cylinder.

6. The electrolytic rust removal equipment with automatic control of electrode movement according to claim 1, characterized in that: The number of teeth of the bevel gear 2 is greater than the number of teeth of the bevel gear 1.

Images