Self-cleaning electroplating waste gas absorption device

Abstract

The application discloses a kind of self-cleaning electroplating waste gas absorption devices, belong to automobile electroplating technical field, comprising: electroplating waste gas absorption component;Outer expansion formula scraper component;Outer expansion formula rolling brush component;Outer expansion drive component;Rotary drive component;Mounting assembly;The present application is by electroplating waste gas absorption component, outer expansion formula scraper component, outer expansion formula rolling brush component, outer expansion drive component, rotary drive component and mounting assembly constitute, can be to electroplating waste gas absorption pipeline inner wall first scraping and then rolling brush cleaning Secondary cleaning, not only has the pertinence cleaning of electroplating waste gas pipeline inner wall, but also can improve the cleaning effect of electroplating waste gas absorption pipeline inner wall.

Description

Technical Field

[0001] This invention belongs to the field of automotive electroplating technology, specifically relating to a self-cleaning electroplating waste gas absorption device. Background Technology

[0002] Electroplating is a surface treatment process that uses the principle of electrolysis to deposit a uniform, dense and firmly bonded metal or alloy coating on the surface of a conductive workpiece. It is widely used in the field of automotive parts surface treatment.

[0003] Electroplating processes for automotive parts generate electroplating waste gas, which contains acidic and alkaline substances that can easily affect the respiratory tract of workers. Therefore, it is necessary to install electroplating waste gas absorption devices.

[0004] Chinese patent application number 201820508321.6 discloses a self-cleaning electroplating waste gas absorption system, including a suction unit and a cleaning unit. The cleaning unit includes a movable scraper assembly and a spray assembly. The movable scraper assembly moves to scrape away the dirt from the suction unit and cleans the suction unit, while the spray assembly sprays the movable scraper assembly to clean it.

[0005] The aforementioned existing technology has the following problems: the device can only clean the stains at the air intake of the air intake unit, while most of the stains on the air intake unit are on the inner wall, and the device cannot clean the stains adhering to the inner wall of the air intake unit.

[0006] Therefore, a self-cleaning electroplating waste gas absorption device is designed to solve the above problems. Summary of the Invention

[0007] To address the problems mentioned in the background section, this invention provides a self-cleaning electroplating waste gas absorption device, which not only provides targeted cleaning of the inner wall of the electroplating waste gas pipeline but also improves the cleaning effect on the inner wall of the electroplating waste gas absorption pipeline.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a self-cleaning electroplating waste gas absorption device, comprising:

[0009] Electroplating waste gas absorption components;

[0010] An outward-expanding scraper assembly is installed inside the electroplating waste gas absorption assembly. In the initial state, it is retracted and closed. In the cleaning state, it expands outward and fits against the electroplating waste gas absorption assembly to scrape off the first cleaning.

[0011] An outward-expanding roller brush assembly is assembled inside the outward-expanding scraper assembly. In its initial state, it is retracted and closed inside the outward-expanding scraper assembly. In the cleaning state, it expands outward synchronously with the outward-expanding scraper assembly to fit the roller brush of the electroplating waste gas absorption assembly for further cleaning.

[0012] An outward-expanding drive assembly is mounted on the outward-expanding scraper assembly and the outward-expanding roller brush assembly to drive the outward-expanding scraper assembly and the outward-expanding roller brush assembly to expand outward and fit into the electroplating waste gas absorption assembly for cleaning.

[0013] A rotation drive assembly is mounted on the expansion drive assembly, which drives the expansion drive assembly to rotate, thereby causing the expansion scraper assembly and the expansion roller brush assembly to rotate, and cleaning the electroplating waste gas absorption assembly.

[0014] The mounting components are assembled between the rotation drive component and the electroplating waste gas absorption component to form a complete assembly.

[0015] Furthermore, the electroplating waste gas absorption assembly includes an electroplating waste gas absorption pipe, and an installation flange is fixedly connected to the outer wall of the installation side of the electroplating waste gas absorption pipe.

[0016] Furthermore, the outward-expanding scraper assembly includes an intermediate cylinder disposed in the middle of the electroplating waste gas absorption pipe. Several mounting seats are fixedly connected at equal intervals along the circumference at both ends of the outer wall of the intermediate cylinder. A screw is rotatably connected between two mounting seats at corresponding positions. A fixed seat and a movable seat are symmetrically fixed to the outside of the screw. A scraper is disposed outside the fixed seat and the movable seat. Two follower seats are symmetrically fixed to the inner side wall of the scraper. A connecting arm is hinged between the two follower seats and the fixed seat and the movable seat. A sealing plate is fixed to the scraper near the side wall of the mounting flange. When the several sealing plates are combined, they abut against each other.

[0017] Furthermore, the outward-expanding roller brush assembly includes several mounting seats two fixedly fixed at equal intervals along the circumferential direction to both ends of the outer wall of the intermediate cylinder. The several mounting seats two are equally spaced from several mounting seats one. A screw two is rotatably connected between two mounting seats two at corresponding positions. A fixed seat two and a movable seat two are symmetrically fixed to the outside of the screw two. A roller brush seat is provided outside the fixed seat two and the movable seat two. Two follower seats two are symmetrically fixed to the side wall of the roller brush seat near the fixed seat two and the movable seat two. A connecting arm two is hinged between the two follower seats two and the fixed seat two and the movable seat two, respectively. A roller brush is rotatably connected inside the roller brush seat.

[0018] Furthermore, the external expansion drive assembly includes a drive cylinder located inside the electroplating waste gas absorption pipe on the side of the scraper away from the sealing plate, a gear 1 fixedly sleeved on the section of the screw 1 extending into the drive cylinder, and a gear 2 fixedly sleeved on the section of the screw 2 extending into the drive cylinder. Two support frames are symmetrically fixed inside the drive cylinder. The middle cylinder is embedded and fixedly connected to the support frame near the end wall of the support frame. A mounting plate is fixedly embedded inside the support frame away from the middle cylinder. A drive block is connected between the middle cylinder and the mounting plate. External gear ring 1 and external gear ring 2 are fixedly sleeved on the drive block from the side near to the side away from the middle cylinder, respectively. Gear 1 meshes with external gear ring 1, and gear 2 meshes with external gear ring 2. The ratio of the pitch circle radii of gear 1 and gear 2 satisfies the requirement that the scraper and connecting arm 1 simultaneously conform to the inner wall of the electroplating waste gas absorption pipe. A motor 1 is fixedly connected to the side wall of the mounting plate away from the drive block, and motor 1 is rotatably connected to the drive block.

[0019] Furthermore, the rotation drive assembly includes a fixed cylinder located inside the electroplating waste gas absorption pipe on the side of the drive cylinder away from the scraper, and an internal gear ring fixed to the inner wall of the drive cylinder near the fixed cylinder. The fixed cylinder is rotatably embedded inside the drive cylinder. A motor base is fixed to the inner wall of the fixed cylinder. A second motor is fixed to the side wall of the motor base away from the internal gear ring. A third gear is fixedly sleeved on the output end of the second motor to the other side of the motor base. The third gear meshes with the internal gear ring.

[0020] Furthermore, the installation assembly includes a plurality of support rods fixed at equal intervals along the circumference to the outer wall of the fixed cylinder, and a connecting ring is fixed to the other end of the plurality of support rods, the connecting ring being threadedly connected to the electroplating waste gas absorption pipe.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] This invention comprises an electroplating waste gas absorption component, an outward-expanding scraper component, an outward-expanding roller brush component, an outward-expanding drive component, a rotation drive component, and an installation component. It can perform secondary cleaning of the inner wall of the electroplating waste gas absorption pipe by first scraping and then roller brushing, which not only provides targeted cleaning of the inner wall of the electroplating waste gas pipe, but also improves the cleaning effect of the inner wall of the electroplating waste gas absorption pipe. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present invention;

[0024] Figure 2 This is a sectional view of the present invention;

[0025] Figure 3 For the present invention Figure 2 Local structural diagram;

[0026] Figure 4 For the present invention Figure 2 Local structural diagram;

[0027] Figure 5 This is a cross-sectional view of the present invention;

[0028] Figure 6 For the present invention Figure 5 Local structural diagram;

[0029] Figure 7 For the present invention Figure 6 Local structural diagram;

[0030] Figure 8 For the present invention Figure 5 Local structural diagram;

[0031] Figure 9 This is a vertical sectional view of the present invention;

[0032] Figure 10 For the present invention Figure 9 Local structural diagram;

[0033] In the diagram: 101, electroplating waste gas absorption pipe; 102, installation flange;

[0034] 201. Intermediate cylinder; 202. Mounting base 1; 203. Screw 1; 204. Fixed base 1; 205. Movable base 1; 206. Scraper; 207. Follower base 1; 208. Connecting arm 1; 209. Sealing plate;

[0035] 301. Mounting base two; 302. Screw two; 303. Fixed base two; 304. Movable base two; 305. Roller brush base; 306. Follower base two; 307. Connecting arm two; 308. Roller brush;

[0036] 401. Drive cylinder; 402. Support frame; 403. Mounting plate; 404. Drive block; 405. External gear ring one; 406. External gear ring two; 407. Gear one; 408. Gear two; 409. Motor one;

[0037] 501. Fixed cylinder; 502. Motor base; 503. Motor II; 504. Gear III; 505. Internal gear ring;

[0038] 601. Support rod; 602. Connecting ring. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] A self-cleaning electroplating waste gas absorption device, comprising:

[0041] An electroplating waste gas absorption assembly includes an electroplating waste gas absorption pipe 101, and an installation flange 102 is fixedly connected to the outer wall of the installation side of the electroplating waste gas absorption pipe 101; the electroplating waste gas absorption pipe 101 is fixedly connected to the electroplating waste gas absorption equipment by screws and mounting flange 102.

[0042] The externally expanding scraper assembly includes an intermediate cylinder 201 disposed in the middle of the electroplating waste gas absorption pipe 101. Several mounting seats 202 are fixedly connected at equal intervals along the circumference at both ends of the outer wall of the intermediate cylinder 201. A screw 203 is rotatably connected between two corresponding mounting seats 202. The screw 203 is rotatably connected to the mounting seat 202 via bearings. A fixed seat 204 and a movable seat 205 are symmetrically fixed to the outside of the screw 203 and are connected to it via a transmission connection. The fixed seat 204 is perforated and sleeved outside the screw 203 and fixedly connected to the outer wall of the intermediate cylinder 201. The movable seat 205 is connected to the screw 203 via a transmission nut. Scrapers 206 are disposed outside the fixed seat 204 and the movable seat 205. The inner walls of the scrapers 206 are symmetrically fixed... There are two follower seats 207, and connecting arms 208 are hinged between the two follower seats 207 and the fixed seat 204 and the movable seat 205 respectively. A closing plate 209 is fixed to the scraper 206 near the side wall of the mounting flange 102. In the initial state, several scrapers 206 are retracted and several closing plates 209 are combined and abut against each other, presenting a closed state to avoid the corrosive effect of electroplating waste gas. In the cleaning state, several screws 203 rotate, and several movable seats 205 move on several screws 203 towards several fixed seats 204, driving several connecting arms 208 to expand outward. Several connecting arms 208 drive several scrapers 206 to expand outward until several scrapers 206 are in contact with the inner wall of the electroplating waste gas absorption pipe 101, waiting for the drive to scrape off the first cleaning.

[0043] The outward-expanding roller brush assembly includes several mounting seats 301 fixedly at equal intervals along the circumferential direction to both ends of the outer wall of the intermediate cylinder 201. The mounting seats 301 are spaced equally from the mounting seats 202. A screw 302 is rotatably connected between two corresponding mounting seats 301. The screw 302 is rotatably connected to the mounting seat 301 via a bearing. A fixed seat 303 and a movable seat 304 are symmetrically fixed to the outside of the screw 302. The fixed seat 303 is perforated and sleeved outside the screw 302 and fixedly connected to the outer wall of the intermediate cylinder 201. The movable seat 304 is rotatably connected to the screw 302 via a transmission nut. A roller brush seat 305 is provided outside the fixed seat 303 and the movable seat 304. Two follower seats 305 are symmetrically fixed to the side walls of the roller brush seat 305 near the side walls of the fixed seat 303 and the movable seat 304. 06. Two follower seats 306 are hinged to fixed seats 303 and movable seats 304 respectively, and connecting arms 307 are respectively connected to them. Roller brushes 308 are rolled inside the roller brush seat 305. The two ends of the roller brushes 308 are rotatably connected to the roller brush seat 305 through bearings. In the initial state, the roller brushes 308 are retracted in the closed space formed by the scrapers 206 and the sealing plates 209 to avoid the corrosive effect of electroplating waste gas. In the cleaning state, the screws 302 rotate synchronously with the screws 203. During the rotation of the screws 302, the movable seats 304 move towards the fixed seats 303 on the screws 302, which drives the roller brush seats 305 to expand outward. The roller brush seats 305 drive the roller brushes 308 to expand outward and fit against the inner wall of the electroplating waste gas absorption pipe 101, waiting for the roller brushes to clean again.

[0044] The external drive assembly includes a drive cylinder 401 located inside the electroplating waste gas absorption pipe 101 on the side of the scraper 206 away from the closing plate 209, a gear 407 fixedly sleeved on the section of the screw 203 extending into the drive cylinder 401, and a gear 408 fixedly sleeved on the section of the screw 302 extending into the drive cylinder 401. Two support frames 402 are symmetrically fixed inside the drive cylinder 401. The intermediate cylinder 201 is embedded and fixedly connected to the side support frame 402 near the end wall of the support frame 402, and the side support frame away from the intermediate cylinder 201 is also fixedly connected. An installation plate 403 is fixedly embedded inside the intermediate cylinder 201. A drive block 404 is connected to the installation plate 403 via a transmission connection. Both ends of the drive block 404 are rotatably connected to the intermediate cylinder 201 and the installation plate 403 via bearings. External gear ring 1 405 and external gear ring 2 406 are fixedly sleeved on the drive block 404 from the side closest to to the side furthest from the intermediate cylinder 201, respectively. Gear 1 407 meshes with external gear ring 1 405, and gear 2 408 meshes with external gear ring 2 406. The ratio of the pitch circle radii of gear 1 407 and gear 2 408 satisfies the ratio between the scraper 206 and the connecting... Arm 208 simultaneously conforms to the inner wall of the electroplating waste gas absorption pipe 101. Motor 409 is fixedly connected to the side wall of mounting plate 403 away from drive block 404. Motor 409 is rotatably connected to drive block 404, and the output end of motor 409 is fixedly connected to drive block 404 via a coupling. In the clean state, motor 409, electrically connected to the automotive parts electroplating production line control system, drives drive block 404 to rotate. Drive block 404 drives external gear ring 405 and external gear ring 406 to rotate. External gear ring 405 and external gear ring 406 respectively drive several meshing connected... Gear 1 407 and Gear 2 408 rotate. Since the ratio of the pitch circle radius of Gear 1 407 and Gear 2 408 meets the requirement that scraper 206 and connecting arm 1 208 simultaneously adhere to the inner wall of electroplating waste gas absorption pipe 101, Gear 1 407 is large and Gear 2 408 is small. Several gears 1 407 and Gear 2 408 respectively drive the connected screw 1 203 and screw 2 302 to rotate. Screw 1 203 rotates slowly and screw 2 302 rotates quickly, driving several scrapers 206 and several roller brushes 308 to expand outward and simultaneously adhere to the inner wall of electroplating waste gas absorption pipe 101.

[0045] The rotation drive assembly includes a fixed cylinder 501 located inside the electroplating waste gas absorption pipe 101 on the side of the drive cylinder 401 away from the scraper 206, and an internal gear ring 505 fixedly connected to the inner wall of the drive cylinder 401 near the fixed cylinder 501. The fixed cylinder 501 is rotatably embedded inside the drive cylinder 401 and is rotatably connected to the drive cylinder 401 via bearings. A motor base 502 is fixedly connected to the inner wall of the fixed cylinder 501. A second motor 503 is fixedly connected to the side wall of the motor base 502 away from the internal gear ring 505. The output end of the second motor 503 extends to the other side of the motor base 502 and is fixedly sleeved with a third gear 504. The third gear 504 and the internal gear ring are connected... 505 meshing connection; in the clean state, motor 2 503, which is electrically connected to the control system of the electroplating production line of automotive parts, drives gear 3 504 to rotate. Gear 3 504 drives the meshing internal gear ring 505 to rotate. The internal gear ring 505 drives the drive cylinder 401 to rotate. The drive cylinder 401 drives several scrapers 206 and several roller brushes 308 to rotate. The rotating scrapers 206 scrape off the stains adhering to the inner wall of the electroplating waste gas absorption pipe 101. The rotating roller brushes 308 brush off the stains that have not been completely removed from the inner wall of the electroplating waste gas absorption pipe 101. The fallen stains fall with gravity and are collected in the collection container below the electroplating waste gas absorption pipe 101.

[0046] The installation assembly includes several support rods 601 that are fixed at equal intervals along the circumference to the outer wall of the fixed cylinder 501. The other end of each support rod 601 is fixed with a connecting ring 602, which is threadedly connected to the electroplating waste gas absorption pipe 101. The installation is completed by the connecting ring 602 being threadedly connected to the inner wall of the electroplating waste gas absorption pipe 101, which facilitates disassembly and maintenance or replacement.

[0047] Working principle of the invention:

[0048] In the installation state, the connecting ring 602 is threadedly connected to the inner wall of the electroplating waste gas absorption pipe 101;

[0049] In the initial state, several scrapers 206 are retracted, and several sealing plates 209 are combined and abut against each other, forming a closed state. Several roller brushes 308 are retracted in the closed space formed by several scrapers 206 and several sealing plates 209 to avoid the corrosive effects of electroplating exhaust gas.

[0050] In the absorption state, the electroplating waste gas is absorbed into the electroplating waste gas absorption equipment through the electroplating waste gas absorption pipe 101;

[0051] In the clean state, motor 409, electrically connected to the control system of the automotive parts electroplating production line, drives drive block 404 to rotate. Drive block 404 drives external gear ring 405 and external gear ring 406 to rotate. External gear ring 405 and external gear ring 406 respectively drive several meshing gears 407 and 408 to rotate. Since the ratio of the pitch circle radius of gear 407 and gear 408 meets the requirement that scraper 206 and connecting arm 208 simultaneously adhere to the inner wall of electroplating waste gas absorption pipe 101, gear 407 is larger and gear 408 is smaller. Several gears 407 and 408 respectively drive connected screw 203 and screw 302 to rotate. Screw 203 rotates slowly, and several movable seats 205 move on screw 203 towards several fixed seats 204, causing several connecting arms 208 to expand outward. Several connecting arms 208 cause several scrapers 206 to expand outward, and several screws 203 to rotate outward. The second screw 302 rotates quickly, and the several movable seats 304 move towards the several fixed seats 303 on the several screws 302, driving the several roller brush seats 305 to expand outward until the set time is reached and they stop. At this time, the several scrapers 206 and several roller brushes 308 expand outward and simultaneously adhere to the inner wall of the electroplating waste gas absorption pipe 101. The motor 503, which is electrically connected to the control system of the automotive parts electroplating production line, drives the gear 504 to rotate. The gear 504 drives the meshing internal gear ring 505 to rotate. The internal gear ring 505 drives the drive cylinder 401 to rotate. The drive cylinder 401 drives the several scrapers 206 and several roller brushes 308 to rotate. The rotating scrapers 206 scrape off the stains adhering to the inner wall of the electroplating waste gas absorption pipe 101, and the rotating roller brushes 308 brush off the stains that have not been completely removed from the inner wall of the electroplating waste gas absorption pipe 101. The fallen stains fall with gravity and are collected in the collection container below the electroplating waste gas absorption pipe 101.

[0052] For maintenance or replacement, the connecting ring 602 is disassembled by rotating the thread.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning electroplating waste gas absorption device, characterized in that, include: Electroplating waste gas absorption components; An outward-expanding scraper assembly is installed inside the electroplating waste gas absorption assembly. In the initial state, it is retracted and closed. In the cleaning state, it expands outward and fits against the electroplating waste gas absorption assembly to scrape off the first cleaning. An outward-expanding roller brush assembly is assembled inside the outward-expanding scraper assembly. In its initial state, it is retracted and closed inside the outward-expanding scraper assembly. In the cleaning state, it expands outward synchronously with the outward-expanding scraper assembly to fit the roller brush of the electroplating waste gas absorption assembly for further cleaning. An outward-expanding drive assembly is mounted on the outward-expanding scraper assembly and the outward-expanding roller brush assembly to drive the outward-expanding scraper assembly and the outward-expanding roller brush assembly to expand outward and fit into the electroplating waste gas absorption assembly for cleaning. A rotation drive assembly is mounted on the expansion drive assembly, which drives the expansion drive assembly to rotate, thereby rotating the expansion scraper assembly and the expansion roller brush assembly to clean the electroplating waste gas absorption assembly. The mounting components are assembled between the rotation drive component and the electroplating waste gas absorption component to form a complete assembly.

2. The self-cleaning electroplating waste gas absorption device according to claim 1, characterized in that: The electroplating waste gas absorption assembly includes an electroplating waste gas absorption pipe (101), and an installation flange (102) is fixedly connected to the outer wall of the installation side of the electroplating waste gas absorption pipe (101).

3. The self-cleaning electroplating waste gas absorption device according to claim 2, characterized in that: The outward-expanding scraper assembly includes an intermediate cylinder (201) disposed in the middle of the electroplating waste gas absorption pipe (101). Several mounting seats (202) are fixedly connected at equal intervals along the circumference at both ends of the outer wall of the intermediate cylinder (201). A screw (203) is rotatably connected between two mounting seats (202) at corresponding positions. A fixed seat (204) and a movable seat (205) are symmetrically fixed to the outside of each screw (203). A scraper (206) is provided outside the first (204) and the first (205) of the movable seat. Two follower seats (207) are symmetrically fixed to the inner side wall of the scraper (206). The two follower seats (207) are respectively hinged to the first fixed seat (204) and the first (205) of the movable seat. A closing plate (209) is fixed to the side wall of the scraper (206) near the mounting flange (102). When several closing plates (209) are combined, they abut against each other.

4. The self-cleaning electroplating waste gas absorption device according to claim 3, characterized in that: The outward-expanding roller brush assembly includes several mounting seats two (301) fixed at equal intervals along the circumferential direction to both ends of the outer wall of the intermediate cylinder (201). The mounting seats two (301) are equally spaced from the mounting seats one (202). A screw two (302) is rotatably connected between two mounting seats two (301) at corresponding positions. A fixed seat two (303) and a movable seat two (304) are symmetrically fixed to the outside of the screw two (302). A roller brush seat (305) is provided outside the second seat (303) and the second movable seat (304). Two follower seats (306) are symmetrically fixed to the side wall of the second fixed seat (303) and the second movable seat (304) near the roller brush seat (305). Two follower seats (306) are respectively hinged to the second fixed seat (303) and the second movable seat (304). A roller brush (308) is tumbled inside the roller brush seat (305).

5. The self-cleaning electroplating waste gas absorption device according to claim 4, characterized in that: The external expansion drive assembly includes a drive cylinder (401) located inside the electroplating waste gas absorption pipe (101) on the side of the scraper (206) away from the closing plate (209), a gear one (407) fixedly sleeved on the section of the screw one (203) extending into the drive cylinder (401), and a gear two (408) fixedly sleeved on the section of the screw two (302) extending into the drive cylinder (401). Two support frames (402) are symmetrically fixed inside the drive cylinder (401). The middle cylinder (201) is embedded and fixedly connected to the side support frame (402) near the end wall of the support frame (402). A mounting plate (403) is fixedly embedded inside the support frame (402) on the side away from the middle cylinder (201). (201) A drive block (404) is connected to the mounting plate (403) for transmission. External gear ring 1 (405) and external gear ring 2 (406) are fixedly sleeved on the drive block (404) from the side closest to the middle cylinder (201) to the side far away. Gear 1 (407) meshes with external gear ring 1 (405), and gear 2 (408) meshes with external gear ring 2 (406). The ratio of the pitch circle radius of gear 1 (407) and gear 2 (408) meets the requirement that scraper (206) and connecting arm 1 (208) simultaneously fit against the inner wall of electroplating waste gas absorption pipe (101). Motor 1 (409) is fixedly connected to the side wall of the mounting plate (403) away from the drive block (404). Motor 1 (409) is rotatably connected to the drive block (404).

6. The self-cleaning electroplating waste gas absorption device according to claim 5, characterized in that: The rotation drive assembly includes a fixed cylinder (501) located inside the electroplating waste gas absorption pipe (101) on the side of the drive cylinder (401) away from the scraper (206) and an internal gear ring (505) fixed to the inner wall of the drive cylinder (401) near the fixed cylinder (501). The fixed cylinder (501) is rotatably embedded inside the drive cylinder (401). A motor seat (502) is fixed to the inner wall of the fixed cylinder (501). A second motor (503) is fixed to the side wall of the motor seat (502) away from the internal gear ring (505). The output end of the second motor (503) extends to the other side of the motor seat (502) and is fixedly sleeved with a third gear (504). The third gear (504) meshes with the internal gear ring (505).

7. The self-cleaning electroplating waste gas absorption device according to claim 6, characterized in that: The installation assembly includes a plurality of support rods (601) fixed at equal intervals along the circumference to the outer wall of the fixed cylinder (501), and a connecting ring (602) fixed to the other end of the plurality of support rods (601), the connecting ring (602) being threadedly connected to the electroplating waste gas absorption pipe (101).

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