A device for cleaning zinc residue and zinc skin on the surface of a galvanized sheet

Abstract

The application discloses a galvanized sheet surface zinc residue and zinc skin cleaning device, which comprises a cleaning and suction mechanism arranged in a positioning and tightening mechanism and a galvanized sheet body, and the positioning and tightening mechanism comprises an equipment box body. The application relates to the field of galvanized sheet cleaning technology. The galvanized sheet surface zinc residue and zinc skin cleaning device is combined with the positioning and tightening mechanism and the cleaning and suction mechanism. When the galvanized sheet body is cleaned, the suction net groove is used to adsorb and fix the galvanized sheet body, and then the front and rear staggered shovel bodies are used to clean the bottom of the galvanized sheet body, and the cleaned zinc residue and zinc skin can directly fall to the inner side of the conical frame under the suction force of the suction machine and the gravity of the zinc residue and zinc skin, so that the zinc residue and zinc skin is effectively prevented from splashing upward and diffusing, and the internal parts of the equipment are protected.

Description

Technical Field

[0001] This invention relates to the field of galvanized sheet cleaning technology, specifically to a device for cleaning zinc dross and zinc scale from the surface of galvanized sheets. Background Technology

[0002] Galvanized steel sheet refers to steel sheet with a layer of zinc on its surface. Galvanizing is an economical and effective rust prevention process that extends service life through zinc layer protection. Processing methods include hot-dip galvanizing, alloy galvanizing, and electro-galvanizing, among which hot-dip galvanized steel sheet is the most widely used. During the galvanizing process, irregular zinc scale and zinc powder often condense on the surface of existing steel sheets. In order to avoid affecting the product appearance and coating uniformity, scrapers are used to clean them. However, existing cleaning equipment cannot completely remove the slag, and the slag splashes after scraping causes secondary pollution to the steel sheet. Patent documents have now made improvements to this.

[0003] For example, Chinese patent CN121496311A discloses a zinc scale and zinc powder cleaning device for galvanized sheets, relating to the field of galvanized sheet coating cleaning. It includes a zinc scale and zinc powder removal box located between the outlet of the galvanizing cooling section and the tension roller; two sheet guide components symmetrically arranged within the zinc scale and zinc powder removal box; a support guide roller located within the zinc scale and zinc powder removal box and between the two sheet guide components; and an oscillating zinc removal device centered on the support guide roller. It also includes a zinc dross suction device and an air jet zinc removal device. The device in this invention achieves a high zinc scale and zinc powder removal rate from the surface of galvanized sheets, while simultaneously enabling timely recovery of zinc dross to prevent secondary contamination of the sheet surface. Furthermore, the alternating operation of the cutter heads prevents overheating from continuous operation, increasing the service life of the cutter heads.

[0004] While the aforementioned documents can improve the efficiency and quality of cleaning existing galvanized sheets, they still have significant shortcomings in practical use, such as: 1. Slag splashing problem is prominent: When the scraper contacts the plate to remove zinc slag and zinc sheet, most of the slag particles will be ejected and splashed at the moment of contact. This not only easily causes impact damage to the internal sensors, transmission parts and guide parts of the equipment, reducing the service life of the equipment, but also causes the slag particles to re-adhere to the surface of the plate, causing secondary pollution. Even with the addition of a suction device, it is impossible to achieve 100% instantaneous interception and adsorption of splashed slag particles, and the cleaning effect is greatly reduced. 2. Limited cleaning capabilities of scrapers: Existing scrapers are mostly fixed in arrangement or move in a single reciprocating motion. After long-term operation, localized wear and chipping of the blades are likely to occur, resulting in incomplete cleaning of zinc dross and zinc scale on the sheet. In addition, the fit between the scraper and the sheet cannot be flexibly adjusted according to the thickness of the sheet, resulting in poor adaptability. Furthermore, the scraper is cumbersome to disassemble and replace, which affects production efficiency. 3. Low zinc dross collection efficiency: Existing zinc dross collection structures are mostly planar or cylindrical, and dross is easy to accumulate in the collection structure. In addition, there is a lack of auxiliary material guiding structure, which means that the suction force of the suction device cannot be fully applied to the dross falling area. Some zinc dross remains in the collection structure and needs to be cleaned manually every time, which increases the operating cost. 4. Poor stability of plate positioning: During the cleaning process, galvanized plates are prone to warping and displacement due to transmission and scraping by the scraper, resulting in uneven contact between the scraper and the plate. This not only affects the cleaning quality but may also cause scratches on the plate surface, reducing the product yield.

[0005] To address the shortcomings of the existing technologies, a zinc slag and zinc sheet cleaning device is designed that enables stable positioning of galvanized sheets, efficient blade repositioning and cleaning, splash-free slag collection, and damage prevention of equipment components. This device aims to meet the needs of continuous industrial production, improve cleaning efficiency and product qualification rate, and reduce equipment maintenance costs. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a device for cleaning zinc dross and zinc scale from the surface of galvanized sheets, which solves the problems of existing cleaning equipment easily damaging internal parts and having poor cleaning effect.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a zinc slag and zinc scale cleaning device for galvanized sheet surfaces, comprising a cleaning and suction mechanism and a galvanized sheet body disposed within a positioning and tensioning mechanism. The positioning and tensioning mechanism includes an equipment housing, with a cleaning groove and a transmission groove respectively opened on the upper and lower sides of the equipment housing. A platform frame is fixedly installed at the top of the cleaning groove cavity through an opening, and an adsorption mesh groove is opened at the bottom of the platform frame, with a plurality of adsorption mesh grooves provided. A vacuum pump is fixedly installed at the top of the equipment housing through an opening, and the vacuum pump is connected to the platform frame. First guide rollers are installed on both sides of the platform frame through brackets.

[0008] Preferably, side openings are provided on both sides of the inner cavity of the transmission trough, and rectangular grooves for pulling plates that penetrate into the cleaning trough are provided on both sides of the bottom of the inner cavity of the transmission trough. Second guide rollers are rotatably installed on both sides of the inner cavity between the front and rear parts of the inner cavity of the transmission trough via brackets, and two sets of second guide rollers are provided in pairs. Both the second guide rollers and the first guide rollers are in contact with the galvanized sheet body.

[0009] Preferably, a protective rear frame is fixedly installed at the rear of the equipment housing. A rotating rod and a threaded rod are rotatably installed on the upper and lower sides of the rear of the equipment housing via bearing components, respectively. The rear ends of the rotating rod and the threaded rod pass through the protective rear frame and extend to the rear of the protective rear frame. The rotating rod and the threaded rod are connected by a pulley and a belt drive. A motor is fixedly installed at the rear of the protective rear frame via a bracket, and the output shaft of the motor is fixedly connected to the rear end of the rotating rod via a coupling.

[0010] Preferably, the two sides of the rear of the cleaning groove and the two sides of the protective rear frame are provided with first sliding grooves, and the surface of the threaded rod is threadedly connected to a U-shaped rotating plate frame. Both ends of the U-shaped rotating plate frame pass through the first sliding groove and extend to the inside of the cleaning groove. The top of the U-shaped rotating plate frame is provided with a first arc block, and there are several first arc blocks.

[0011] Preferably, the surface of the rotating rod is provided with a first threaded groove and a second threaded groove, the rear part of the surface of the first threaded groove is threaded with a single-hole bracket, the front part of the surface of the second threaded groove is threaded with a double-hole bracket, the rear part of the inner cavity of the cleaning groove is provided with a second sliding groove for use in conjunction with the double-hole bracket and the single-hole bracket, and the double-hole bracket and the single-hole bracket pass through the second sliding groove and extend into the interior of the cleaning groove, and a material extraction machine is fixedly installed on the surface of the protective rear frame.

[0012] Preferably, the cleaning and suction mechanism includes two electric telescopic rods, which are installed on both sides of the inner cavity of the cleaning tank via fixed seats. A positioning ring frame is fixedly connected between the top ends of the two electric telescopic rods, and the positioning ring frame is located directly below the platform frame. A circular guide hole is provided on the outer periphery of the top of the positioning ring frame, and several circular guide holes are provided. A guide post is slidably installed on the inner side of the circular guide hole. A conical pocket frame that cooperates with the positioning ring frame is fixedly installed between the bottom ends of the several guide posts, and a splash-proof ring is provided on the inner wall of the conical pocket frame.

[0013] Preferably, a support plate is fixedly connected to both sides of the surface of the conical pocket frame, and a second arc block is provided at the bottom of the support plate to cooperate with the first arc block. A material extraction pipe is fixedly installed at the bottom of the conical pocket frame through an opening, and one end of the material extraction pipe passes through the equipment box and is connected to the material extraction machine.

[0014] Preferably, a square plate frame is fixedly installed on the inner side of the positioning ring frame by a bracket. The top of the square plate frame is provided with a longitudinal sliding groove, and there are several longitudinal sliding grooves. A strip slider is slidably installed on the inner side of the longitudinal sliding groove. A U-shaped insert plate for use with double-hole inserts and single-hole inserts is fixedly connected to the top of the strip slider. A scraper body is fixedly connected to the top of the U-shaped insert plate, and the scraper body is in contact with the bottom of the galvanized sheet body.

[0015] This invention provides a device for cleaning zinc dross and zinc scale from the surface of galvanized sheets. Compared with existing technologies, it has the following advantages: (1) The zinc dross and zinc scale cleaning device on the surface of the galvanized sheet combines the positioning and tightening mechanism and the cleaning suction mechanism. When cleaning the galvanized sheet body, the suction mesh first absorbs and fixes the galvanized sheet body flat. Then, the scraper body moving back and forth cleans the zinc dross and zinc scale at the bottom of the galvanized sheet body. The cleaned zinc dross and zinc scale can fall directly down into the inner side of the conical frame by the suction of the suction machine and its own gravity, effectively preventing the zinc dross and zinc scale from splashing upwards and spreading, protecting the internal parts of the equipment. The shaking conical frame can quickly and timely shake off and absorb the zinc dross and zinc scale, effectively improving the service life of the equipment and the cleaning quality of the galvanized sheet body.

[0016] (2) The zinc dross and zinc scale cleaning device for the surface of galvanized sheet metal has a first threaded groove and a second threaded groove on the surface of the rotating rod, and a double-hole bracket and a single-hole bracket are threadedly connected at different positions on the front and back of the rotating rod. The arrangement of these structures can make it convenient to replace the U-shaped bracket by utilizing the insertion depth of the U-shaped bracket and the double-hole bracket and the single-hole bracket. It is also suitable for galvanized sheet metal of different thicknesses. Furthermore, the arrangement of the first threaded groove and the second threaded groove can cause the double-hole bracket and the single-hole bracket to drive several scraper bodies to alternate back and forth when the rotating rod rotates, so that the scraper bodies can continuously change different positions for cleaning. This avoids problems with one edge of one scraper body, which would lead to incomplete cleaning of zinc dross and zinc scale, and improves the cleaning quality and efficiency.

[0017] (3) The zinc dross and zinc skin cleaning device on the surface of the galvanized sheet uses a conical sling frame to slide on the bottom of the positioning ring frame with a guide column, and an anti-splash ring is installed on the inner side of the conical sling frame. It is used in conjunction with the second arc block. The structure allows the zinc dross and zinc skin to fall quickly into the inner side of the conical sling frame by its own weight and the suction force of the suction pipe. The anti-splash ring can effectively block the zinc dross and zinc skin and prevent splashing. Combined with the vibrating conical sling frame, the zinc dross and zinc skin can be shaken off and adsorbed and discharged quickly, effectively preventing the zinc dross and zinc skin from affecting the internal equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the motor, pulley, and belt structure of the present invention; Figure 3 This is a cross-sectional view of the housing structure of the device of the present invention; Figure 4This is a schematic diagram of the platform frame, adsorption mesh, and vacuum pump structure of the present invention; Figure 5 This is a side view of the internal structure of the protective rear frame of the present invention; Figure 6 This is a schematic diagram of the rotating rod, threaded rod, and motor structure of the present invention; Figure 7 This is a schematic diagram of the structure of the pull plate rectangular groove, the first sliding groove, and the second sliding groove of the present invention; Figure 8 This is a schematic diagram of the cleaning and suction mechanism structure of the present invention; Figure 9 This is a schematic diagram of the guide post, conical pocket frame, and splash guard ring structure of the present invention; Figure 10 This is a cross-sectional view of the conical pocket structure of the present invention; Figure 11 This is a schematic diagram of the longitudinal groove, strip slider, and U-shaped insert structure of the present invention.

[0019] In the diagram: 1. Positioning and tightening mechanism; 2. Cleaning and suction mechanism; 3. Galvanized sheet body; 101. Equipment housing; 102. Cleaning trough; 103. Conveying trough; 104. Platform frame; 105. Adsorption mesh trough; 106. Vacuum pump; 107. First guide roller; 108. Side opening; 109. Pulling plate rectangular groove; 110. Second guide roller; 111. Protective rear frame; 112. Rotating rod; 113. Threaded rod; 114. Motor; 115. Pulley; 116. Belt; 117. First sliding groove; 118. U-shaped rotating plate frame; 19. First arc block; 120. First threaded groove; 121. Second threaded groove; 122. Double-hole insert; 123. Single-hole insert; 124. Second sliding groove; 125. Material extractor; 201. Electric telescopic rod; 202. Positioning ring frame; 203. Circular guide hole; 204. Guide post; 205. Conical pocket frame; 206. Anti-splash ring; 207. Support plate; 208. Second arc block; 209. Material extraction pipe; 210. Square plate frame; 211. Longitudinal sliding groove; 212. Strip slider; 213. U-shaped insert plate; 214. Shovel body. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-11The present invention provides a technical solution: a zinc dross and zinc scale cleaning device for the surface of galvanized sheet, comprising a cleaning suction mechanism 2 and a galvanized sheet body 3 disposed inside a positioning and tensioning mechanism 1; Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 The diagram illustrates the overall structure of the positioning and tensioning mechanism 1. The positioning and tensioning mechanism 1 includes a housing 101. The upper and lower sides of the housing 101 are respectively provided with a cleaning groove 102 and a transmission groove 103. A platform frame 104 is fixedly installed at the top of the inner cavity of the cleaning groove 102 through an opening. The platform frame 104 is a hollow metal frame, and a sealing flange is provided at the connection end with the vacuum pump 106. Several adsorption mesh grooves 105 are provided at the bottom of the platform frame 104. The vacuum pump 106 is fixedly installed at the top of the housing 101 through an opening and is connected to the platform frame 104. First guide rollers 107 are installed on both sides of the platform frame 104 via brackets. The inner cavity of the transmission groove 103... Both sides are provided with side openings 108. Both sides of the bottom of the inner cavity of the transmission groove 103 are provided with pull plate rectangular grooves 109 that penetrate into the cleaning groove 102. The two sides between the front and rear of the inner cavity of the transmission groove 103 are rotatably mounted with second guide rollers 110 through brackets. Two sets of second guide rollers 110 are provided in pairs. The second guide rollers 110 and the first guide rollers 107 are both in contact with the galvanized sheet body 3. The first guide rollers 107 and the second guide rollers 110 are metal roller cores covered with wear-resistant and anti-slip rubber layers. The surface of the rubber layer has annular anti-slip patterns. The two ends of the roller cores are connected to the brackets through deep groove ball bearings, resulting in low rotational resistance. The second guide rollers 110 have a height-adjustable structure. The brackets are provided with long strip-shaped adjustment holes, which can adjust the tension according to the thickness of the sheet. A protective rear frame 111 is fixedly installed at the rear of the equipment housing 101. A rotating rod 112 and a threaded rod 113 are rotatably installed on the upper and lower sides of the rear of the equipment housing 101 via bearing components. The rear ends of the rotating rod 112 and the threaded rod 113 both pass through the protective rear frame 111 and extend to the rear of the protective rear frame 111. The rotating rod 112 and the threaded rod 113 are connected by a pulley 115 and a belt 116. The belt 116 is a polyurethane synchronous belt, which prevents slippage and ensures that the rotating rod 112 and the threaded rod 113 rotate synchronously. A motor 114 is fixedly installed at the rear of the protective rear frame 111 via a bracket. The motor 114 is a servo motor, and the output shaft of the motor 114 is fixedly connected to the rear end of the rotating rod 112 via a coupling. First sliding grooves 117 are provided on both sides of the rear of the cleaning groove 102 and on both sides of the protective rear frame 111. A U-shaped rotating plate frame 118 is threadedly connected to the surface of the threaded rod 113. Both ends of the U-shaped rotating plate frame 118 pass through the first sliding grooves 117 and extend to the inner side of the cleaning groove 102. A first arc block 119 is provided on the top of the U-shaped rotating plate frame 118, and several first arc blocks 119 are provided. A first threaded groove 120 and a second threaded groove 121 are respectively provided on the surface of the rotating rod 112. A single-hole insert 123 is threadedly connected to the rear of the surface of the first threaded groove 120, and a double-hole insert 122 is threadedly connected to the front of the surface of the second threaded groove 121. The rear of the inner cavity of the cleaning tank 102 is provided with a second sliding groove 124 that works in conjunction with the double-hole bracket 122 and the single-hole bracket 123. The double-hole bracket 122 and the single-hole bracket 123 pass through the second sliding groove 124 and extend into the interior of the cleaning tank 102. A material extractor 125 is fixedly installed on the surface of the protective rear frame 111. The vacuum pump 106 is equipped with a pressure regulating valve, which can adjust the adsorption pressure according to the thickness of the plate to avoid excessive pressure damaging the plate. The feed end of the material extractor 125 is equipped with a detachable filter cylinder, and the discharge end is equipped with a quick-connect interface for easy connection with the zinc slag collection device. The material extraction pipe 209 is a wear-resistant corrugated hose that can vibrate with the conical frame 205 without breaking.

[0022] Please refer to Figure 8 , Figure 9 , Figure 10 and Figure 11 The diagram illustrates the overall structure of the cleaning suction mechanism 2. The cleaning suction mechanism 2 includes two electric telescopic rods 201, which are mounted on both sides of the inner cavity of the cleaning tank 102 via fixed seats. A positioning ring frame 202 is fixedly connected between the top ends of the two electric telescopic rods 201, and the positioning ring frame 202 is located directly below the platform frame 104. A circular guide hole 203 is provided on the outer periphery of the top of the positioning ring frame 202, and several circular guide holes 203 are provided. Guide posts 204 are slidably installed on the inner side of the circular guide holes 203. Conical shapes that cooperate with the positioning ring frame 202 are fixedly installed between the bottom ends of the guide posts 204. The conical frame 205 has a splash guard 206 on its inner wall. The splash guard 206 is made of elastic and wear-resistant nitrile rubber. Several layers are bonded together along the circumference of the inner wall of the conical frame, with the inner diameter of each layer decreasing sequentially to form a multi-layer splash barrier that effectively intercepts splashing slag particles. Support plates 207 are fixedly connected to both sides of the surface of the conical frame 205. The bottom of the support plate 207 is provided with a second arc block 208 that cooperates with the first arc block 119. The bottom of the conical frame 205 is fixedly installed with a material extraction pipe 209 through an opening. One end of the material extraction pipe 209 passes through the equipment box 101 and is connected to the material extraction machine 125. A square plate frame 210 is fixedly installed on the inner side of the positioning ring frame 202 by a bracket. The top of the square plate frame 210 is provided with a longitudinal groove 211, and there are several longitudinal grooves 211. A strip slider 212 is slidably installed on the inner side of the longitudinal groove 211. The top of the strip slider 212 is fixedly connected to a U-shaped insert plate 213 that is used in conjunction with the double-hole insert 122 and the single-hole insert 123. The top of the U-shaped insert plate 213 is fixedly connected to a scraper body 214. The scraper body 214 is made of hard alloy and is fixed to the U-shaped insert plate 213 by bolts. The blade end is chamfered at 30°, which is wear-resistant and has low scraping resistance. Several scrapers are arranged in an array along the width of the plate, with no blind spots for cleaning. The scraper body 214 is in close contact with the bottom of the galvanized plate body 3.

[0023] In use, one end of the galvanized sheet body 3 is passed through the pull plate rectangular groove 109 from the side through-hole 108, and then through the pull plate rectangular groove 109 and the side through-hole 108 from the other side. At this time, the galvanized sheet body 3 is located below the cleaning groove 102 and the platform frame 104, and the surfaces of the galvanized sheet body 3 are in contact with the second guide roller 110 and the first guide roller 107 and are tensioned. Then, the vacuum pump 106 is started to draw air through the platform frame 104 and the adsorption mesh groove 105, thereby adsorbing the galvanized sheet body 3 onto the bottom of the platform frame 104. At this time, the galvanized sheet body 3 is flattened on the bottom of the platform frame 104. The electric telescopic rod 201 is activated to push the positioning ring frame 202 up to the bottom of the platform frame 104, and the U-shaped insert plate 213 makes slight contact with the bottom of the galvanized sheet body 3. At the same time, the rear end of the U-shaped insert plate 213 is inserted into the inner side of the double-hole insert 122 and the single-hole insert 123 respectively, while the support plate 207 is flush with the U-shaped rotating plate frame 118. Then, the galvanized sheet body 3 is pulled by the traction device to move inside the equipment box 101. When the galvanized sheet body 3 moves, several scraper bodies 214 will remove the zinc dross and zinc scale at the bottom of the galvanized sheet body 3. At this time, the motor 114 is started, using... The transmission of pulley 115 and belt 116 causes the rotating rod 112 and threaded rod 113 to rotate synchronously. When the rotating rod 112 rotates, because the double-hole insert 122 and the single-hole insert 123 are located at different front and rear positions in the first threaded groove 120 and the second threaded groove 121 respectively, the rotation of the rotating rod 112 causes the double-hole insert 122 and the single-hole insert 123 to move back and forth alternately. Simultaneously, the connection between the U-shaped insert plate 213 and the double-hole insert 122 and the single-hole insert 123 also drives the scraper body 214 to move back and forth alternately, thus enabling the blade to change position for cleaning. The rotation of the threaded rod 113 will drive the U-shaped insert plate 213 to move back and forth alternately. The rotating plate frame 118 moves back and forth, and the first arc block 119 continuously abuts against the second arc block 208, causing the conical sump frame 205 to vibrate up and down using the guide column 204 as a limit. After the zinc dross and zinc sheet at the bottom of the galvanized sheet body 3 are scraped off, they fall into the inner side of the conical sump frame 205. The material extractor 125 uses the material extraction pipe 209 to suck up the area directly below the galvanized sheet body 3 to prevent dust from floating. After the zinc dross and zinc sheet fall into the inner side of the conical sump frame 205, they are blocked by the anti-splash ring 206 to prevent splashing. Then, the vibrating conical sump frame 205 shakes the zinc dross and zinc sheet downwards, and finally they are sucked away by the material extractor 125.

[0024] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A device for cleaning zinc dross and zinc scale from the surface of galvanized sheet, comprising a cleaning suction mechanism (2) disposed inside a positioning and tensioning mechanism (1) and a galvanized sheet body (3), characterized in that: The positioning and tightening mechanism (1) includes a device housing (101). The upper and lower sides of the device housing (101) are respectively provided with a cleaning groove (102) and a transmission groove (103). The top of the inner cavity of the cleaning groove (102) is fixedly installed with a platform frame (104) through an opening. The bottom of the platform frame (104) is provided with an adsorption net groove (105), and there are several adsorption net grooves (105). The top of the device housing (101) is fixedly installed with a vacuum pump (106) through an opening, and the vacuum pump (106) is connected to the platform frame (104). The two sides of the platform frame (104) are each equipped with a first guide roller (107) through a bracket. A protective rear frame (111) is fixedly installed at the rear of the equipment housing (101). A rotating rod (112) and a threaded rod (113) are respectively rotatably installed on the upper and lower sides of the rear of the equipment housing (101) through bearing components. The cleaning groove (102) and the protective rear frame (111) are provided with first sliding grooves (117) on both sides of the rear. The threaded rod (113) is threadedly connected to a U-shaped rotating plate frame (118). Both ends of the U-shaped rotating plate frame (118) pass through the first sliding groove (117) and extend to the inside of the cleaning groove (102). The top of the U-shaped rotating plate frame (118) is provided with a first arc block (119), and there are several first arc blocks (119). The rotating rod (112) has a first threaded groove (120) and a second threaded groove (121) respectively. The rear part of the surface of the first threaded groove (120) is threaded with a single-hole insert (123), and the front part of the surface of the second threaded groove (121) is threaded with a double-hole insert (122). A material extractor (125) is fixedly installed on the surface of the protective rear frame (111). The cleaning suction mechanism (2) includes two electric telescopic rods (201). The two electric telescopic rods (201) are installed on both sides of the inner cavity of the cleaning tank (102) through a fixed seat. A positioning ring frame (202) is fixedly connected between the top ends of the two electric telescopic rods (201). The positioning ring frame (202) is located directly below the platform frame (104). A circular guide hole (203) is opened on the outer periphery of the top of the positioning ring frame (202). Several circular guide holes (203) are provided. A guide post (204) is slidably installed on the inner side of the circular guide hole (203). A conical pocket frame (205) that cooperates with the positioning ring frame (202) is fixedly installed between the bottom ends of several guide posts (204). A splash-proof ring (206) is provided on the inner wall of the conical pocket frame (205). Both sides of the surface of the conical pocket (205) are fixedly connected to support plates (207), and the bottom of the support plate (207) is provided with a second arc block (208) that cooperates with the first arc block (119). The bottom of the conical pocket (205) is fixedly installed with a material extraction pipe (209) through an opening, and one end of the material extraction pipe (209) passes through the equipment box (101) and is connected to the material extraction machine (125). The inner side of the positioning ring frame (202) is fixedly installed with a square plate frame (210) by a bracket. The top of the square plate frame (210) is provided with a longitudinal groove (211), and there are several longitudinal grooves (211). A strip slider (212) is slidably installed on the inner side of the longitudinal groove (211). The top of the strip slider (212) is fixedly connected with a U-shaped insert plate (213) that is used in conjunction with the double-hole insert frame (122) and the single-hole insert frame (123). The top of the U-shaped insert plate (213) is fixedly connected with a scraper body (214), and the scraper body (214) is in contact with the bottom of the galvanized sheet body (3).

2. The zinc dross and zinc scale cleaning device for the surface of galvanized sheet according to claim 1, characterized in that: The inner cavity of the transmission groove (103) is provided with side through openings (108) on both sides. The bottom of the inner cavity of the transmission groove (103) is provided with pull plate rectangular grooves (109) that penetrate into the cleaning groove (102). The two sides between the front and rear of the inner cavity of the transmission groove (103) are rotatably mounted with second guide rollers (110) through brackets. Two sets of second guide rollers (110) are provided in pairs. The second guide rollers (110) and the first guide rollers (107) are both in contact with the galvanized sheet body (3).

3. The zinc dross and zinc scale cleaning device for the surface of galvanized sheet according to claim 2, characterized in that: The rear ends of the rotating rod (112) and the threaded rod (113) both pass through the protective rear frame (111) and extend to the rear of the protective rear frame (111). The rotating rod (112) and the threaded rod (113) are connected by a pulley (115) and a belt (116). The rear of the protective rear frame (111) is fixedly mounted with a motor (114) by a bracket, and the output shaft of the motor (114) is fixedly connected to the rear end of the rotating rod (112) by a coupling.

4. The zinc dross and zinc scale cleaning device for galvanized sheet surface according to claim 3, characterized in that: The rear part of the inner cavity of the cleaning groove (102) is provided with a second sliding groove (124) that is used in conjunction with the double-hole bracket (122) and the single-hole bracket (123). The double-hole bracket (122) and the single-hole bracket (123) pass through the second sliding groove (124) and extend into the interior of the cleaning groove (102).

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