A rust removal device for galvanized steel plate before plating

Abstract

The present invention relates to the technical field of rust removal processing, and discloses a rust removal device for galvanized steel plates before plating, comprising a supporting frame with an inverted U-shaped structure, a plurality of steel plates being horizontally placed in the supporting frame at intervals, a front movable seat and a rear movable seat being located at the front and rear sides of the supporting frame and sliding relative to or opposite to each other, the front movable seat and the rear movable seat being respectively provided with a front adjustment seat and a rear adjustment seat that slide left and right, the front adjustment seat or the rear adjustment seat being respectively provided with a grinding assembly for synchronously grinding the front or back sides of the plurality of steel plates, a lifting point being provided at a non-central position on the top surface of the supporting frame, and a frame-shaped crossbeam being connected to the lifting point, and telescopic rods with a buffering function being hinged between the frame-shaped crossbeam at the left and right ends of the lifting point and the supporting frame. The present invention can not only reduce the process complexity of rust removal of steel plates before plating, but also be applicable to rust removal treatment of galvanized steel plates before plating in small and medium-sized enterprises.

Description

Technical Field

[0001] The invention relates to the technical field of rust removal processing, in particular to a rust removal device for galvanized steel plates before plating. Background Art

[0002] Galvanized steel is a metal material made by coating ordinary steel with a layer of zinc. It combines the strength of steel with the corrosion resistance of zinc, offering excellent rust resistance. Common galvanizing processes include hot-dip galvanizing and electroplating.

[0003] In order to ensure the quality requirements of galvanized steel sheets, the surface of ordinary steel sheets needs to be derusted before galvanizing. When the rust layer on the surface of ordinary steel sheets reaches a certain thickness, it is necessary to use grinding or shot blasting to derust the surface. In the existing method of derusting galvanized steel sheets before plating, a magnetic lifting device is usually used to lift the ordinary steel sheets to the conveying mechanism of the steel plate shot blasting machine. During the conveying process, the ordinary steel sheets are passed through the steel plate shot blasting machine to derust their surfaces. After the rust removal is completed, multiple ordinary steel sheets are placed on the galvanizing rack in an orderly manner by lifting.

[0004] During the above operation, multiple ordinary steel plates need to be hoisted twice, which not only increases the dependence on the use of cranes in the workshop, but also increases the complexity of the operation process; and the cost of the steel plate shot blasting machine is relatively high, which is obviously not suitable for the pre-plating rust removal of galvanized steel plates in small and medium-sized enterprises. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a rust removal device for galvanized steel plates before plating.

[0006] In order to solve the above technical problems, the present invention provides a technical solution: a galvanized steel plate pre-galvanizing rust removal device, which is used for synchronously removing rust from multiple steel plates before galvanizing, comprising a carrier frame with an inverted U-shaped structure, wherein multiple steel plates are horizontally placed in an interval-type manner in the carrier frame, and further comprising a front movable seat and a rear movable seat located on the front and rear sides of the carrier frame and sliding relative to or opposite to each other, wherein the front movable seat and the rear movable seat are respectively provided with a front adjustment seat and a rear adjustment seat which slide left and right, wherein the front adjustment seat and the rear adjustment seat are respectively provided with a grinding assembly for synchronously grinding the front or back sides of the multiple steel plates, and the rotation of the grinding assembly drives the corresponding front adjustment seat and the rear adjustment seat to perform synchronous sliding operation;

[0007] A lifting point is provided at a non-central position on the top surface of the load-bearing frame and a frame-shaped crossbeam is connected to the lifting point. Telescopic rods with a buffering function are hinged between the frame-shaped crossbeam and the load-bearing frame at the left and right ends of the lifting point, and the telescopic actions of the two telescopic rods are set in opposite directions.

[0008] As an improvement, a plurality of slots for the steel plates to be inserted are provided at equal distances along the height direction on either end of the carrier frame, and a placement slot for the steel plate end to be inserted is provided on the inner wall of the other end corresponding to each slot. A detachable fixing component for synchronously fixing multiple steel plates is provided on the end face of the carrier frame corresponding to the slot, and the lifting point is set close to the slot.

[0009] As an improvement, the grinding assembly includes a wire brush roller rotatably arranged on the front adjustment seat and the rear adjustment seat and located at the top surface or bottom surface of each steel plate, the wire brush roller on the front adjustment seat and the wire brush roller on the rear adjustment seat are cross-matched, and each wire brush roller is provided with a spline shaft at the end away from the front adjustment seat or the rear adjustment seat, and a spline sleeve for the corresponding spline shaft to extend into is rotatably provided on the front movable seat and the rear movable seat;

[0010] When the front movable seat and the rear movable seat move relative to each other and abut against the front and rear ends of the carrier, the spline shaft extends into the corresponding spline sleeve for cooperation, and the front movable seat and the rear movable seat are provided with a transmission assembly that enables all wire brush rollers to rotate synchronously.

[0011] As an improvement, the transmission assembly includes a synchronous pulley 1 arranged on the input shaft of each wire brush roller, a tensioning pulley is respectively provided on the front moving seat and the rear moving seat between every two synchronous pulleys 1, and a synchronous pulley 2 is respectively provided on the front moving seat and the rear moving seat near the topmost and bottommost synchronous pulleys 1 to rotate, a synchronous belt is wound around all the synchronous pulleys 1, the tensioning pulley and the synchronous pulley 2 on the same side, the input shaft of any wire brush roller is connected to the output shaft of the speed regulating motor, and a transmission member that enables the two to rotate synchronously is provided on any spline sleeve on the opposite side of the speed regulating motor and the input shaft of the adjacent wire brush roller.

[0012] As an improvement, tooth plates are fixed on the front movable seat and the rear movable seat along the length direction respectively, the input shaft of the wire brush roller close to the tooth plate is connected to the input shaft of the reducer, and the output shaft of the reducer is provided with a gear meshing with the tooth plate.

[0013] As an improvement, positioning components for positioning the front adjustment seat and the rear adjustment seat are respectively provided on the front moving seat and the rear moving seat. When the front moving seat and the rear moving seat move relative to each other and abut against the end of the supporting frame, the positioning components are driven to operate and release the positioning.

[0014] As an improvement, the positioning assembly includes an extension seat fixedly arranged on the end faces of the front adjustment seat and the rear adjustment seat, and mounting grooves are respectively provided on the front movable seat and the rear movable seat corresponding to the extension seat, and a positioning pin with a rebound function is passed through the mounting groove, a pin hole for inserting the positioning pin is provided on the extension seat, and a sliding rod extending from the front adjustment seat and the rear adjustment seat is slidingly provided on the mounting groove, and the ends of the sliding rod and the positioning pin are respectively hinged with rocker arms, and a rocker arm is hinged between the rocker arms at both ends, and the middle position of the rocker arm is hinged to the inner wall of the mounting groove.

[0015] The beneficial effects of the present invention compared with the prior art are:

[0016] 1. Under the action of the bearing frame, front movable seat, rear movable seat, grinding assembly, lifting point and frame beam, multiple steel plates can be placed on the bearing frame in sequence by means of lifting, and then the front and back sides of the multiple steel plates can be simultaneously derusted by the grinding assembly. After the derusting is completed, the bearing frame can be directly lifted to carry out galvanizing treatment on the derusted steel plates. During the entire grinding and galvanizing process, the steel plates only need to be lifted and placed once, thereby improving the working efficiency of the device;

[0017] 2. Under the action of the transmission assembly, all the wire brush rollers on the front moving seat and the rear moving seat can be rotated synchronously, thereby improving the convenience of the grinding operation of the device;

[0018] 3. When the wire brush roller rotates, the front adjustment seat and the rear adjustment seat can be driven to slide and adjust through the cooperation of the reducer, gear and tooth plate. In this way, the sliding of the front adjustment seat and the rear adjustment can be controlled without adding power parts, thereby reducing the demand for power source of this device;

[0019] 4. Under the joint action of the positioning assembly, the rocker rod and the rocker arm, when the front movable seat and the rear movable seat move relative to each other and abut against the end of the carrier frame, the positioning of the front adjustment seat and the rear adjustment seat can be automatically released, thereby improving the operation convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the present invention Figure 1 .

[0021] Figure 2 This is a schematic diagram of the structure of the present invention Figure 2 .

[0022] Figure 3 It is a structural schematic diagram without the front moving seat and the rear moving seat in the present invention.

[0023] Figure 4 It is a side structural diagram of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure without a supporting frame in the present invention.

[0025] Figure 6 It is a structural schematic diagram of the front moving seat and the rear moving seat in the present invention.

[0026] Figure 7 It is a structural diagram of the transmission component in the present invention.

[0027] Figure 8 This is a schematic diagram of the structure of the positioning component in the present invention Figure 1 .

[0028] Figure 9 This is a schematic diagram of the structure of the positioning component in the present invention Figure 2 .

[0029] As shown in the figure: 1. Carrier; 111. Notch; 112. Placement slot; 113. Avoidance slot; 2. Fixing assembly; 211. Positioning seat; 212. Abutment block; 311. Front moving seat; 312. Rear moving seat; 313. Front adjustment seat; 314. Rear adjustment seat; 4. Grinding assembly; 411. Wire brush roller; 412. Spline shaft; 413. Spline sleeve; 511. Lifting point; 512. Frame beam; 513. Telescopic Rod; 6. Transmission assembly; 611. Synchronous pulley 1; 612. Tensioner; 613. Synchronous pulley 2; 614. Synchronous belt 1; 615. Speed ​​regulating motor; 616. Synchronous pulley 3; 617. Synchronous belt 2; 711. Tooth plate; 712. Reducer; 713. Gear; 8. Positioning assembly; 811. Extension seat; 812. Mounting slot; 813. Positioning pin; 911. Sliding rod; 912. Rocker arm; 913. Rocker arm. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below with reference to the accompanying drawings.

[0031] Combined with attachment Figure 1 and attached Figure 2As shown, a rust removal device for galvanized steel plates before plating is used for synchronous rust removal of multiple steel plates before galvanizing, comprising a carrier frame 1 with an inverted U-shaped structure, wherein multiple steel plates are horizontally placed in the carrier frame 1 at intervals, and in order to realize synchronous grinding of multiple steel plates, the device further comprises a front movable seat 311 and a rear movable seat 312 located at the front and rear sides of the carrier frame 1 and sliding relative to or opposite to each other, the front movable seat 311 and the rear movable seat 312 are slidably fitted on a ground rail connected to the ground, and the front movable seat 311 and the rear movable seat 312 are driven by an external power member to slide and adjust, and a front adjustment seat 313 and a rear adjustment seat 314 which slide left and right are respectively provided on the front adjustment seat 313 and the rear adjustment seat 314, and a grinding assembly 4 for synchronous grinding of the front or back sides of the multiple steel plates is respectively provided on the front adjustment seat 313 and the rear adjustment seat 314, and the rotation of the grinding assembly 4 drives the corresponding front adjustment seat 313 and the rear adjustment seat 314 to perform synchronous sliding operations;

[0032] Since the steel plate needs to be inserted into the zinc liquid at an angle during galvanizing, in order to keep the steel plate on top in an inclined state when the supporting frame 1 is lifted, a lifting point 511 is provided at a non-center position on the top surface of the supporting frame 1 and a frame-shaped crossbeam 512 is connected to this lifting point 511. A lifting sling is provided on the frame-shaped crossbeam 512, which can be a steel wire rope or chain in the prior art. Telescopic rods 513 with a buffering function are hinged between the frame-shaped crossbeam 512 and the supporting frame 1 at the left and right ends of the lifting point 511, and the telescopic actions of the two telescopic rods 513 are set in opposite directions.

[0033] Through the above structure, a plurality of steel plates are first placed horizontally in an interval-type manner in the carrier 1 by hoisting, and then the front movable seat 311 and the rear movable seat 312 are controlled to slide relative to each other, and then the rotation of the grinding assembly 4 is controlled to perform synchronous grinding operations on the front and back sides of the steel plates. During the grinding process, the front adjustment seat 313 and the rear adjustment seat 314 are synchronously controlled to slide and adjust, and then the grinding assembly 4 is controlled to slide in the length direction of the steel plates, thereby performing comprehensive grinding and rust removal operations on the surfaces of the steel plates.

[0034] After rust removal is completed, the front movable seat 311 and the rear movable seat 312 are first controlled to move in opposite directions and separate from the carrier 1, and then the frame beam 512 and the carrier 1 are lifted by an external crane. In the process of lifting upward, since the lifting point 511 is in a non-center position of the carrier 1, the carrier 1 will automatically form an inclined state. By extending and retracting the telescopic rods 513 at both ends, the carrier 1 can be effectively buffered when the inclined state changes, and when the steel plate changes its inclined state, the waste chips remaining on the surface of the steel plate during grinding can slide downward and then slide to the outside of the carrier 1.

[0035] Combined with attachment Figure 3As shown, in order to achieve the horizontal placement of multiple steel plates at intervals, a plurality of notches 111 for the steel plates to extend into are equidistantly opened on either end of the carrier 1 along its height direction. A placement groove 112 for the end of the steel plate to extend into is opened on the inner wall of the other end at a position corresponding to each notch 111. A fixing assembly 2 for synchronously fixing multiple steel plates is detachably provided on the end surface of the carrier 1 corresponding to the notch 111, and a lifting point 511 is arranged near the notch 111.

[0036] The fixing assembly includes a positioning seat 211 that is detachably connected to the end of the carrier frame 1. A plurality of abutment blocks 212 are fixed on the positioning seat 211, which extend into each slot 111 and abut the end of the steel plate. The detachable connection between the positioning seat 211 and the carrier frame 1 is carried out through the cooperation of positioning bolts and internal threads. An avoidance groove 113 is also provided on the carrier frame 1 for the magnetic sling to extend into.

[0037] When placing multiple steel plates into the carrier frame 1, first use an external crane with a magnetic lifting sling to lift the multiple steel plates individually, and insert the multiple steel plates from bottom to top into the positions of the slots 111 and the placement slots 112 in sequence, and then connect the positioning seat 211 to the end of the carrier frame 1, and use the abutment block 212 to perform abutment positioning operation on the steel plates.

[0038] Combined with attachment Figure 4 , Attachment Figure 5 and attached Figure 6 As shown, the grinding assembly 4 includes a wire brush roller 411 rotatably arranged on the front adjustment seat 313 and the rear adjustment seat 314 and located at the top surface or bottom surface of each steel plate, the wire brush roller 411 on the front adjustment seat 313 and the wire brush roller 411 on the rear adjustment seat 314 cross-match, and when the front movable seat 311 and the rear movable seat 312 slide relative to each other, they can drive all the wire brush rollers 411 to slide. Since the wire brush roller 411 has a certain flexibility, its surface abuts against the top surface or bottom surface of the steel plate during the sliding process of the wire brush roller 411. In order to ensure the stability of the wire brush roller 411 during rotation, a spline shaft 412 is provided at the end of each wire brush roller 411 away from the front adjustment seat 313 or the rear adjustment seat 314, and a spline sleeve 413 for the corresponding spline shaft 412 to extend into is rotatably provided on the front movable seat 311 and the rear movable seat 312;

[0039] When the front movable seat 311 and the rear movable seat 312 move relative to each other and abut against the front and rear ends of the carrier frame 1, the spline shaft 412 extends into the corresponding spline sleeve 413 for cooperation, and the front movable seat 311 and the rear movable seat 312 are provided with a transmission assembly 6 that enables all wire brush rollers 411 to rotate synchronously.

[0040] The working principle of the grinding assembly 4 is to first control the relative movement of the front moving seat 311 and the rear moving seat 312 and abut against the end face of the carrier 1. At this time, all the wire brush rollers 411 will be driven to slide and abut against the top and bottom surfaces of the steel plate respectively, and at the same time, the spline shaft 412 and the corresponding spline sleeve 413 will be matched. Finally, the rotation operation of all the wire brush rollers is realized through the transmission assembly 6.

[0041] Combined with attachment Figure 5 and attached Figure 7 As shown, in order to realize the synchronous rotation of all the wire brush rollers 411, the transmission assembly 6 includes a synchronous pulley 1 611 arranged on the input shaft of each wire brush roller 411, and a tensioning pulley 612 is rotatably provided on the front movable seat 311 and the rear movable seat 312 between every two synchronous pulleys 1 611, and a synchronous pulley 2 613 is rotatably provided on the front movable seat 311 and the rear movable seat 312 close to the topmost and bottommost synchronous pulleys 1 611, respectively. A synchronous belt 1 614 is wound around all the synchronous pulleys 1 611, the tensioning pulley 612 and the synchronous pulley 2 613 on the same side, and the inner side surface of the synchronous belt 1 614 cooperates with the synchronous pulley 1 611 and the synchronous pulley 2 613, and the outer end portion cooperates with the tensioning pulley 612;

[0042] The input shaft of any wire brush roller 411 is connected to the output shaft of the speed regulating motor 615. In order to achieve synchronous rotation of the wire brush rollers 411 on both sides, a transmission member for enabling the two to rotate synchronously is provided on any spline sleeve 413 on the opposite side of the speed regulating motor 615 and the input shaft of the adjacent wire brush roller 411. The transmission member includes a synchronous pulley three 616 respectively arranged on the spline sleeve 413 and the input shaft of the wire brush roller 411, and a synchronous belt two 617 is wound around the two synchronous pulleys three 616.

[0043] The working principle of the transmission component 6 is to start the speed regulating motor 615 to drive the wire brush roller 411 connected to it to rotate, and under the action of the corresponding synchronous belt 614, drive the multiple synchronous pulleys 611 connected to it to rotate, and at the same time drive the multiple wire brush rollers 411 on one side to perform synchronous rotation adjustment, and then drive the spline sleeve 413 connected to it on the other side to rotate, and under the action of the transmission part, drive the wire brush roller 411 connected to it to rotate, and under the action of the synchronous belt 614 on the other side, drive the multiple wire brush rollers 411 on the other side to rotate synchronously, thereby driving all the wire brush rollers 411 to perform synchronous rotation operations.

[0044] Combined with attachment Figure 5 , Attachment Figure 8 and attached Figure 9As shown, the front movable seat 311 and the rear movable seat 312 are respectively fixed with a toothed plate 711 along the length direction, the input shaft of the wire brush roller 411 near the toothed plate 711 is connected to the input shaft of the reducer 712, and the output shaft of the reducer 712 is provided with a gear 713 meshing with the toothed plate 711. When the wire brush roller 411 rotates, the reducer 712 is driven to rotate and decelerate, and then the gear 713 is driven to rotate. Since the gear 713 and the toothed plate 711 are in a meshing state, when the gear 713 rotates, it drives the front adjustment seat 313 and the rear adjustment seat 314 to slide.

[0045] In order to prevent the gear 713 from sliding on the tooth plate 711 when not grinding, a positioning assembly 8 is provided on the front movable seat 311 and the rear movable seat 312 respectively to position the front adjustment seat 313 and the rear adjustment seat 314. When the front movable seat 311 and the rear movable seat 312 move relative to each other and abut against the end of the carrier 1, the positioning assembly 8 is driven to operate and release the positioning.

[0046] The positioning assembly 8 includes an extension seat 811 fixedly arranged on the end surfaces of the front adjustment seat 313 and the rear adjustment seat 314, and a mounting groove 812 is respectively provided on the front movable seat 311 and the rear movable seat 312 corresponding to the extension seat 811, and a positioning pin 813 with a rebound function is passed through the mounting groove 812, a pin hole for inserting the positioning pin 813 is provided on the extension seat 811, and a sliding rod 911 extending out of the front adjustment seat 313 and the rear adjustment seat 314 is slidably provided on the mounting groove 812, and the ends of the sliding rod 911 and the positioning pin 813 are respectively hinged with a rocker rod 912, and a rocker arm 913 is hinged between the rocker rods 912 at both ends, and the middle position of the rocker arm 913 is hinged to the inner wall of the mounting groove 812.

[0047] The positioning and positioning release principle of the front adjusting seat 313 and the rear adjusting seat 314 is that when the front moving seat 311 and the rear moving seat 312 are away from the supporting frame 1, the extension seat 811 is fixedly connected to the front moving seat 311 and the rear moving seat 312 through the cooperation of the positioning pin 813 and the pin hole, and the front adjusting seat 313 and the rear adjusting seat 314 are fixedly connected. When the front moving seat 311 and the rear moving seat 312 move relative to each other and abut against the end surface of the supporting frame 1, the sliding rod 911 will be driven to move inward, and under the action of the hinged rocker rod 912 and the rocker arm 913, the positioning pin 813 will be driven to move outward, so that the positioning pin 813 and the pin hole are separated. At this time, the positioning of the extension seat 811 can be released, and the positioning of the front adjusting seat 313 and the rear adjusting seat 314 can be released, which can increase the operating convenience of the device.

[0048] During the specific implementation of the present invention, a plurality of steel plates are first placed in a horizontally spaced manner in the carrier frame 1 and fixed by hoisting, and then the front movable seat 311 and the rear movable seat 312 are controlled to move relative to each other and abut against the two ends of the carrier frame 1. At this time, not only can the plurality of wire brush rollers 411 abut against the front and back surfaces of the plurality of steel plates, but the positioning of the front adjustment seat 313 and the rear adjustment seat 314 can also be released;

[0049] Start the speed regulating motor 615, and under the action of the transmission component 6, drive all the wire brush rollers 411 to rotate synchronously, and perform synchronous grinding operations on the surfaces of multiple steel plates. At the same time, under the action of the rotation of the gear 713, drive the front adjustment seat 313 and the rear adjustment seat 314 to slide, drive the wire brush roller 411 to slide in the length direction of the steel plate, and perform comprehensive grinding and rust removal operations on the surface of the steel plate. After the grinding is completed, first control the front moving seat 311 and the rear moving seat 312 to move back to each other and away from the supporting frame 1, and then use the cooperation of the crane and the lifting sling to lift the frame beam 512, and at the same time lift the supporting frame 1 and multiple steel plates that have been ground and rusted and transferred to the galvanizing pool for galvanizing treatment, thereby improving the utilization efficiency of the device.

[0050] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A galvanized steel plate pre-galvanizing rust removal device, used for synchronous rust removal of multiple steel plates before galvanizing, characterized by: The invention comprises a carrier frame (1) having an inverted U-shaped structure, wherein a plurality of steel plates are horizontally arranged in an interval-like manner in the carrier frame (1), and further comprises a front movable seat (311) and a rear movable seat (312) located on the front and rear sides of the carrier frame (1) and sliding relative to or opposite to each other, wherein the front movable seat (311) and the rear movable seat (312) are respectively provided with a front adjustment seat (313) and a rear adjustment seat (314) sliding left and right, and the front adjustment seat (313) and the rear adjustment seat (314) are respectively provided with a grinding assembly (4) for synchronously grinding the front or back sides of the plurality of steel plates, and the rotation of the grinding assembly (4) drives the corresponding front adjustment seat (313) and the rear adjustment seat (314) to perform synchronous sliding operation; A lifting point (511) is provided at a non-central position on the top surface of the carrier (1), and a frame-shaped crossbeam (512) is connected to the lifting point (511). Telescopic rods (513) with a buffering function are hingedly connected between the frame-shaped crossbeam (512) and the carrier (1) at the left and right ends of the lifting point (511), and the telescopic actions of the two telescopic rods (513) are oppositely arranged. The grinding assembly (4) includes a wire brush roller (411) rotatably arranged on the front adjustment seat (313) and the rear adjustment seat (314) and located at the top surface or bottom surface of each steel plate, the wire brush roller (411) on the front adjustment seat (313) and the wire brush roller (411) on the rear adjustment seat (314) are cross-matched, and the end of each wire brush roller (411) away from the front adjustment seat (313) or the rear adjustment seat (314) is respectively provided with a spline shaft (412), and the front movable seat (311) and the rear movable seat (312) are respectively rotatably provided with a spline sleeve (413) for the corresponding spline shaft (412) to extend into; When the front movable seat (311) and the rear movable seat (312) move relative to each other and abut against the front and rear ends of the carrier (1), the spline shaft (412) extends into the corresponding spline sleeve (413) for engagement, and a transmission assembly (6) is provided on the front movable seat (311) and the rear movable seat (312) for causing all the wire brush rollers (411) to rotate synchronously; The transmission assembly (6) includes a synchronous pulley (611) arranged on the input shaft of each wire brush roller (411), a tensioning pulley (612) is rotatably provided on the front movable seat (311) and the rear movable seat (312) between every two synchronous pulleys (611), and a synchronous pulley (613) is rotatably provided on the front movable seat (311) and the rear movable seat (312) near the top and bottom synchronous pulleys (611), and a synchronous belt (614) is wound around all the synchronous pulleys (611), the tensioning pulley (612) and the synchronous pulleys (613) on the same side. The input shaft of any wire brush roller (411) is connected to the output shaft of the speed regulating motor (615), and a transmission member for causing the two to rotate synchronously is provided on any spline sleeve (413) on the opposite side of the speed regulating motor (615) and the input shaft of the adjacent wire brush roller (411).

2. The rust removal device for galvanized steel sheet before plating according to claim 1, characterized in that: A plurality of slots (111) for inserting steel plates are provided at equal intervals along the height direction on either end of the carrier (1), and placement slots (112) for inserting steel plates are provided on the inner wall of the other end at positions corresponding to each slot (111). A fixing assembly (2) for synchronously fixing a plurality of steel plates is detachably provided on the end face of the carrier (1) corresponding to the slot (111), and a lifting point (511) is provided near the slot (111).

3. The rust removal device for galvanized steel sheet before plating according to claim 1, characterized in that: A toothed plate (711) is fixedly provided on each of the front movable seat (311) and the rear movable seat (312) along the length direction. The input shaft of the wire brush roller (411) near the toothed plate (711) is connected to the input shaft of the reducer (712), and the output shaft of the reducer (712) is provided with a gear (713) meshing with the toothed plate (711).

4. The rust removal device for galvanized steel sheet before plating according to claim 3, characterized in that: Positioning components (8) for positioning the front adjustment seat (313) and the rear adjustment seat (314) are respectively provided on the front movable seat (311) and the rear movable seat (312). When the front movable seat (311) and the rear movable seat (312) move relative to each other and abut against the end of the carrier (1), the positioning components (8) are driven to operate and release the positioning.

5. The rust removal device for galvanized steel sheet before plating according to claim 4, characterized in that: The positioning assembly (8) includes an extension seat (811) fixedly arranged on the end surfaces of the front adjustment seat (313) and the rear adjustment seat (314), a mounting groove (812) is respectively provided on the front movable seat (311) and the rear movable seat (312) corresponding to the extension seat (811), and a positioning pin (813) with a rebound function is inserted into the mounting groove (812), a pin hole for inserting the positioning pin (813) is provided on the extension seat (811), and a sliding rod (911) extending from the front adjustment seat (313) and the rear adjustment seat (314) is slidably provided on the mounting groove (812), and the ends of the sliding rod (911) and the positioning pin (813) are respectively hinged with a swing rod (912), and a swing arm (913) is hinged between the swing rods (912) at both ends, and the middle position of the swing arm (913) is hinged with the inner wall of the mounting groove (812).

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