A metal strip rolling device with a surface polishing function

Abstract

The present invention discloses a metal strip rolling device with a surface polishing function, belonging to the technical field of metal rolling. The present invention includes a metal strip to be rolled and a base. Entrance brackets and exit brackets are respectively arranged on both sides of the base. Transfer mechanisms are arranged on both the entrance bracket and the exit bracket. A rolling mechanism and a polishing mechanism are arranged on the base. The rolling mechanism and the polishing mechanism are arranged between the entrance bracket and the exit bracket. The rolling mechanism is arranged on one side of the entrance bracket, and the polishing mechanism is arranged on the side close to the exit bracket. The transfer mechanism transfers the metal strip, the rolling mechanism rolls the metal strip, the polishing mechanism cleans the surface of the metal strip after rolling, and the polishing mechanism also polishes the surface of the metal strip.

Description

Technical Field

[0001] The present invention relates to the technical field of metal rolling, and specifically to a metal strip rolling device with a surface polishing function. Background Art

[0002] In daily life, although it is difficult to see the figure of metal strips, most of the daily production tools or industrial products are made of metal strips. Metal strips include copper strips. Due to the characteristics of easy availability of materials, low price, and easy processing of copper strips, they account for a major part in industrial production. Copper strips are metal components mainly used for producing electrical switches, battery cap gaskets, seals, heat sinks, and connectors, and are used as electrical or heat conducting materials. Each formed copper strip needs to go through processes such as melting, cutting, rolling, cleaning, and polishing. The final overall elongation, thickness distance, and surface quality of the copper strip are determined by the rolling process. Therefore, the working quality of the copper strip rolling device ultimately affects the quality of the copper strip finished product.

[0003] At present, most of the copper strip rolling devices on the market only have a single set of rolling rolls. After rolling the copper strip to the required thickness, it is necessary to adjust the distance between the rolling rolls after each rolling. After multiple repeated rollings, the final shape can be formed. The rolling efficiency is not high. During the rolling process, rolling oil needs to be applied to the rolling rolls to reduce the friction between the rolling rolls and the copper strip and avoid wear and damage of the rolling rolls. When the copper strip is deformed during rolling, a large amount of heat is generated by the internal friction of the material. The heat is conducted to the rolling rolls, causing the rolling rolls to expand due to heat, resulting in a decrease in the distance between the two rolling rolls, and further causing uneven thickness of the produced copper strip. After the copper strip rolling is completed, the copper strip needs to be polished and cleaned. However, most of the copper strip rolling equipment on the market does not have this function and still requires subsequent processing, which affects the processing and production efficiency of the copper strip. Summary of the Invention

[0004] The purpose of the present invention is to provide a metal strip rolling device with a surface polishing function to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A metal strip rolling device with a surface polishing function includes a metal strip to be rolled and a base. Entrance brackets and exit brackets are respectively arranged on both sides of the base. Transfer mechanisms are arranged on both the entrance bracket and the exit bracket. A rolling mechanism and a polishing mechanism are arranged on the base. The rolling mechanism and the polishing mechanism are arranged between the entrance bracket and the exit bracket. The rolling mechanism is arranged on one side of the entrance bracket, and the polishing mechanism is arranged on the side close to the exit bracket. The transfer mechanism transfers the metal strip, the rolling mechanism rolls the metal strip, the polishing mechanism cleans the surface of the metal strip after rolling, and the polishing mechanism also polishes the surface of the metal strip.

[0006] Further, the transfer mechanism includes an upper support rod and a lower support rod. The upper support rod and the lower support rod are respectively rotatably installed at the upper end and the lower end of the outlet bracket. One end of the upper support rod is rotatably provided with an upper traction wheel, and one end of the lower support rod is rotatably installed with a lower traction wheel. The upper traction wheel and the lower traction wheel are close to each other. A power motor is provided on both the upper support rod and the lower support rod. The power motor on the upper support rod is coaxially installed with the upper traction wheel, and the power motor on the lower support rod is coaxially installed with the lower traction wheel;

[0007] A reset spring and a stop block are provided at both the upper end and the lower end of the outlet bracket. One end of the reset spring at the upper end of the outlet bracket is connected to the upper support rod, and one end of the reset spring at the lower end of the outlet bracket is connected to the lower support rod. The two stop blocks respectively limit the upper support rod and the lower support rod. The arrangement on the inlet bracket is the same as that on the outlet bracket. A cotton wheel is rotatably provided on both the upper support rod and the lower support rod on the outlet bracket. A gear is provided at one end of the cotton wheel. Gears are also provided at one end of the upper traction wheel and the lower traction wheel on the outlet bracket. The gears on the two cotton wheels are respectively meshed and transmitted with the gears on the upper traction wheel and the lower traction wheel. The metal strip to be rolled enters between the upper traction wheel and the lower traction wheel from the outlet bracket. The metal strip pushes the upper support rod and the lower support rod to deflect towards the rolling mechanism. The reset spring pulls the upper support rod and the lower support rod through elastic force, so that sufficient frictional pressure is generated between the upper traction wheel and the lower traction wheel and the metal strip to be rolled. The power motor drives the upper traction wheel and the lower traction wheel to rotate, and transports the metal strip towards the rolling mechanism. While the upper traction wheel and the lower traction wheel are rotating, the cotton wheels are driven to rotate by the gears. The cotton wheels are in contact with the metal strip, and the rotation direction of the cotton wheels is opposite to the moving direction of the metal strip, so as to remove the metal chips and stains of the metal strip to the outside, and avoid the influence of metal impurities on the rolling process.

[0008] Further, the rolling mechanism includes a front support plate, a rear support plate, an upper rolling assembly, and a lower rolling assembly. The front support plate is arranged at one end close to the inlet bracket, and the rear support plate is arranged at one end close to the outlet bracket. The upper rolling assembly and the lower rolling assembly are slidably arranged on the front support plate and the rear support plate. The upper rolling assembly includes a power connection plate and an auxiliary connection plate. Between the power connection plate and the auxiliary connection plate, there are a winding-in roller, a winding-out roller, and several auxiliary rollers rotatably arranged. At one end of the winding-in roller, the winding-out roller, and several auxiliary rollers close to the power connection plate, there are tooth grooves. On the power connection plate, several idler wheels are arranged, and each idler wheel is arranged between every two adjacent tooth grooves. At one end of the power connection plate away from the winding-in roller, there is a main motor, and the main motor is coaxially installed with an idler wheel. When the main motor is energized, it drives an idler wheel to rotate. Through the transmission between the tooth grooves and the idler wheels, the winding-in roller, the winding-out roller, and several auxiliary rollers are driven to rotate at the same speed and in the same direction. After the metal strip enters between the two winding-in rollers, the thickness of the metal strip does not change. After that, every time the metal strip passes through a pair of auxiliary rollers, the thickness of the metal strip becomes thinner. Finally, after passing through a pair of winding-out rollers, the rolling of the metal strip is completed. By arranging several pairs of auxiliary rollers between a pair of winding-in rollers and a pair of winding-out rollers, the metal strip is gradually rolled to the required thickness, and the metal strip is rolled step by step. This can not only disperse the rolling pressure borne by each pair of winding-in rollers, winding-out rollers, and several auxiliary rollers, but also reduce the heat generated by the large internal friction of the metal strip during rolling, avoid elastic deformation of the metal strip, and improve the rolling accuracy of the metal strip.

[0009] The winding-in roller, the winding-out roller, and several auxiliary rollers are all hollow. An air pump is arranged on the base, and pipelines are connected between the air pump and the hollow parts of the winding-in roller, the winding-out roller, and several auxiliary rollers. During the operation of the winding-in roller, the winding-out roller, and several auxiliary rollers, the heat generated by the internal friction deformation of the metal strip is slowly transferred to the winding-in roller, the winding-out roller, and several auxiliary rollers. The air pump is energized to work, and gas is introduced into each of the winding-in roller, the winding-out roller, and several auxiliary rollers. The heat on the winding-in roller, the winding-out roller, and several auxiliary rollers is carried away by the air flow, reducing the thermal expansion of the winding-in roller, the winding-out roller, and several auxiliary rollers due to heat, and avoiding the uneven rolling thickness of the metal strip caused by the slow reduction of the distance between a pair of winding-out rollers.

[0010] Further, on one side of the two power connection plates where the main motor is arranged, there are also several eccentric groove walls. On one side of the winding-in roller, there are several blade grooves, and a blade is slidably arranged in each blade groove. A sealing spring is arranged between each blade and the blade groove. Several blades are in contact with the eccentric groove walls. The structure of the winding-out roller is the same as that of the winding-in roller, and the structure of several auxiliary rollers is also the same as that of the winding-in roller.

[0011] Longitudinal sliders are slidably arranged on the front end support plate and the rear end support plate. Transverse sliders are slidably arranged on each longitudinal slider. One end of the power connecting plate is rotatably installed on the transverse slider in the front end support plate, and the other end of the power connecting plate is rotatably installed on the transverse slider in the rear end support plate. The two transverse sliders connected to the power connecting plate are on the same side. The auxiliary connecting plate is also rotatably connected to the two transverse sliders. The two transverse sliders connected to the auxiliary connecting plate are on the same side. The lower rolling assembly and the upper rolling assembly are symmetrically arranged up and down. The lower rolling assembly and the upper rolling assembly are arranged in the same way. While the feeding roller, the discharging roller and several auxiliary rollers are working, they drive several blades to rotate in the eccentric groove wall. The air pressure in the groove wall at the end with a relatively large distance from the center of the eccentric groove wall to the rotation center of several blades gradually decreases. The rolling oil in the fuel tank is sucked in through the upper oil suction hole or the lower oil suction hole through the main oil pipe. The pressure in the groove wall at the end with a relatively small distance from the center of the eccentric groove wall to the rotation center of several blades gradually increases. The rolling oil is extruded through the upper oil pressure hole and the lower oil pressure hole.

[0012] Further, a pair of power hydraulic cylinders are installed on the upper support rod. Arc-shaped racks are arranged on the upper support rod and the lower support rod. The two arc-shaped racks and the pair of power hydraulic cylinders are located outside the inlet support. Straight racks are installed on the piston rods of the pair of power hydraulic cylinders. The two arc-shaped racks are respectively in meshing transmission with the two straight racks. A pushing hydraulic cylinder is arranged outside the front end support plate. The pushing hydraulic cylinder is a double-headed cylinder. Two sliding grooves are formed in the front end support plate. Stopping pieces are arranged on the two longitudinal sliders connected to the front end support plate. The two piston rods on the pushing hydraulic cylinder are respectively connected to the two stopping pieces. When the metal strip pushes the upper support rod and the lower support rod to deflect towards the rolling mechanism, the upper support rod and the lower support rod drive the two arc-shaped racks to rotate at the same time. The two arc-shaped racks push the two straight racks to move. The two straight racks make the pistons of the pair of power hydraulic cylinders move. The hydraulic oil in the pair of power hydraulic cylinders flows into the pushing hydraulic cylinder through the pipeline. The two piston rods in the pushing hydraulic cylinder push the two stopping pieces upwards and downwards respectively. The distance between the two feeding rollers is separated. The separated distance between the two feeding rollers is the same as the height of the metal strip. The metal strip is fed between the two feeding rollers and is ready for rolling.

[0013] Furthermore, a screw rod and a worm are rotatably installed on the outer side of the rear end support plate. A worm gear is arranged in the middle of the screw rod. The thread directions of the screw rod on both sides of the worm gear are opposite. The worm is in meshing transmission with the worm gear. A hand wheel is installed at one end of the worm away from the rear end support plate. Two sliding grooves are also formed in the rear end support plate. Nuts are arranged on both of the two longitudinal sliding blocks connected to the rear end support plate. The two nuts are respectively in threaded connection with both ends of the screw rod. The operator rotates the hand wheel. The hand wheel drives the worm gear to rotate through the worm. The worm gear drives the screw rod to rotate. The screw rod makes the longitudinal sliding blocks move in opposite directions through the nuts, so as to adjust the distance between the two unwinding rollers. After the metal strip is unwound between the two unwinding rollers, the metal strip is rolled to the final required thickness.

[0014] Furthermore, upper covers are arranged at the upper ends of the winding roller, the unwinding roller and several auxiliary rollers in the upper rolling assembly, and lower covers are arranged at the lower ends of the winding roller, the unwinding roller and several auxiliary rollers in the lower rolling assembly. The several upper covers and the several lower covers are arranged between the power connection plate and the auxiliary connection plate. Upper oil pressure holes and upper oil suction holes are respectively formed at the upper and lower ends of several eccentric groove walls in the upper rolling assembly, and lower oil suction holes and lower oil pressure holes are respectively formed at the upper and lower ends of several eccentric groove walls in the lower rolling assembly. A main oil pipe is arranged between the two power connection plates. One end of the main oil pipe is communicated with an oil tank. Pipelines are communicated between the main oil pipe and the upper oil suction hole and the lower oil suction hole. Rolling oil is stored in the oil tank. The rolling oil extruded through the upper oil pressure hole in the eccentric groove wall enters the upper cover through the upper branch pipe. The rolling oil directly drips onto the winding roller, the unwinding roller and several auxiliary rollers. As the winding roller, the unwinding roller and several auxiliary rollers rotate, the oil spreading squeegee evenly spreads the rolling oil onto the winding roller, the unwinding roller and several auxiliary rollers. The rolling oil dripping and extruded through the lower oil pressure hole in the eccentric groove wall enters the lower cover through the lower branch pipe and accumulates at the lowest position of the lower cover. When the surfaces of the winding roller, the unwinding roller and several auxiliary rollers rotate to the lowest position of the lower cover, the surfaces of the winding roller, the unwinding roller and several auxiliary rollers are stained with the rolling oil.

[0015] Furthermore, an upper branch pipe is connected between each upper oil pressure hole and each upper cover, and a lower branch pipe is connected between each lower oil pressure hole and the bottom of each lower cover. An upper oil groove is arranged outside the upper cover. A transverse cutting squeegee is arranged between the upper cover and the winding roller, the unwinding roller and several auxiliary rollers. One end of the transverse cutting squeegee is connected to the upper oil groove. Oil spreading squeegees are arranged inside one end of the upper cover close to the upper branch pipe. The several oil spreading squeegees are all in contact with the winding roller, the unwinding roller and several auxiliary rollers;

[0016] An oil sump is provided on the outside of the lower cover. A longitudinal cutting scraper is provided between the lower cover, the pay-off roll, the take-up roll and a plurality of auxiliary rolls. One end of the longitudinal cutting scraper is connected to the oil sump. The rolling oil reduces the external friction that occurs when the pay-off roll, the take-up roll and a plurality of auxiliary rolls roll the metal strip. After rolling, a small amount of copper metal powder adheres to the residual rolling oil on the pay-off roll, the take-up roll and a plurality of auxiliary rolls, forming waste oil that is unfavorable for rolling. The transverse cutting scraper in the upper cover scrapes off the waste oil on the pay-off roll, the take-up roll and a plurality of auxiliary rolls, and finally enters the upper oil sump. The longitudinal cutting scraper in the lower cover scrapes off the waste oil on the pay-off roll, the take-up roll and a plurality of auxiliary rolls and flows into the lower oil sump. The waste oil in all the upper oil sumps and the lower oil sumps flows above the oil tank. A filter screen is provided above the oil tank. The copper metal powder in the waste oil is intercepted by the filter screen, and the clean rolling oil enters the oil tank for recycling.

[0017] Further, the polishing mechanism includes a sliding table, on which a dust-proof cover is slidably mounted. An upper grinder and a lower grinder are slidably mounted in the dust-proof cover. The ends of the upper grinder and the lower grinder away from the rear end plate extend out of the dust-proof cover. Two centering springs are provided between the upper grinder and the interior of the dust-proof cover. One end of the upper grinder close to the rear end plate is provided with a ramp surface, on which a plurality of rollers are provided. A plurality of collet chucks are slidably mounted on the upper grinder. A spring is installed between each collet chuck and the upper grinder. A cleaning roller is rotatably mounted on each collet chuck. A polishing wheel is rotatably mounted at the end of the upper grinder extending out of the dust-proof cover. The structure of the lower grinder is the same as that of the upper grinder. The upper grinder and the lower grinder are symmetrically arranged up and down in the dust-proof cover. The metal strip unrolled from a pair of take-up rolls enters between the upper grinder and the lower grinder. The plurality of rollers on the ramp surfaces of the upper grinder and the lower grinder guide the metal strip so that the metal strip enters between the cleaning rollers for cleaning. The collet chucks use the springs between the upper grinder and the lower grinder to press the cleaning rollers against the surface of the metal strip, cleaning the rolling oil on the surface of the metal strip.

[0018] Further, a columnar guide wheel is rotatably arranged outside the upper grinding device. The columnar guide wheel is coaxially installed with the polishing wheel in the upper grinding device. An annular guide groove is formed in the columnar guide wheel. A column is arranged on the base. The column is slidably installed in the guide groove. The polishing mechanism includes a polishing bracket. Two servo motors are arranged on the polishing bracket. One servo motor is coaxially connected with the columnar guide wheel. The other servo motor is coaxially installed with the polishing wheel in the lower grinding device. A sliding shaft sleeve is arranged at the connection between the servo motor and the polishing wheel. A sliding shaft sleeve is also arranged at the connection between the servo motor and the columnar guide wheel. The sliding shaft sleeve is slidably connected with the motor shaft of the servo motor. The two servo motors drive the two polishing wheels to rotate, respectively polishing the surface of the metal strip. While the servo motor drives the polishing wheel to rotate, it drives the columnar guide wheel to rotate. The annular guide groove slides in the column. The upper grinding device drives the dust cover to slide back and forth along the sliding table, so that the upper grinding device and the lower grinding device move back and forth in a direction perpendicular to the movement of the metal strip while cleaning and polishing the metal strip, making the polishing of the metal strip by the polishing wheel more uniform. After the polishing of the metal strip is completed, it is sent out through the upper traction wheel and the lower traction wheel on the outlet bracket.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0020] 1. By arranging several pairs of auxiliary rollers between a pair of feeding rollers and a pair of discharging rollers, gradually rolling the metal strip to the required thickness and performing step-by-step rolling on the metal strip, not only can the rolling pressure borne by each pair of feeding rollers, discharging rollers and several auxiliary rollers be dispersed, but also the heat generated by the large internal friction during the rolling of the metal strip can be reduced, avoiding elastic deformation of the metal strip and improving the rolling accuracy of the metal strip.

[0021] 2. By arranging several blades to rotate in the eccentric groove wall, sucking the rolling oil in the oil tank through the upper oil suction hole or the lower oil suction hole through the main oil pipe, and extruding it through the upper oil pressure hole and the lower oil pressure hole, the oil spreading scraper evenly spreads and scrapes the rolling oil onto the feeding rollers, discharging rollers and several auxiliary rollers. When the surfaces of the feeding rollers, discharging rollers and several auxiliary rollers rotate to the lowest position of the lower cover, the surfaces are dipped in the rolling oil. The cross-cutting scraper in the upper cover and the longitudinal cutting scraper in the lower cover scrape off the waste oil, and the waste oil enters the oil tank through the upper oil groove and the lower oil groove for filtration and recycling.

[0022] 3. By driving two polishing wheels to rotate respectively by two servo motors to polish the surface of the metal strip, while the servo motor drives the polishing wheel to rotate, it drives the columnar guide wheel to rotate. The annular guide groove slides in the column. The upper grinding device drives the dust cover to slide back and forth along the sliding table, so that the upper grinding device and the lower grinding device move back and forth in a direction perpendicular to the movement of the metal strip while cleaning and polishing the metal strip, making the polishing of the metal strip by the polishing wheel more uniform. Description of the Drawings

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the accompanying drawings:

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a top view schematic diagram of the overall structure of the present invention;

[0026] Figure 3 is the present invention Figure 2 a partial enlarged view of area A therein;

[0027] Figure 4 is the present invention Figure 2 a partial enlarged view of area B therein;

[0028] Figure 5 is a schematic diagram of the overall internal structure of the present invention;

[0029] Figure 6 is a schematic diagram of the internal structure of the polishing mechanism of the present invention;

[0030] Figure 7 is a schematic diagram of the structure of the rolling mechanism of the present invention;

[0031] Figure 8 is a schematic diagram of the structure of the bias groove wall of the present invention;

[0032] Figure 9 is a schematic diagram of the installation structure of the upper cover part of the present invention;

[0033] Figure 10 is a schematic diagram of the installation structure of the lower cover part of the present invention;

[0034] In the figure: 1, base; 2, front support plate; 201, inlet bracket; 202, outlet bracket; 203, upper support rod; 204, upper traction wheel; 205, lower support rod; 206, lower traction wheel; 207, return spring; 208, cotton wheel; 209, arc rack; 210, straight rack; 211, power hydraulic cylinder; 212, push hydraulic cylinder; 3, rear support plate; 301, longitudinal slider; 302, transverse slider; 303, power connecting plate; 304, auxiliary connecting plate; 305, winding roller; 306, unwinding roller; 307, auxiliary roller; 308, main motor; 309, main oil pipe; 310, fuel tank; 311, upper branch pipe; 312, lower branch pipe; 313, idler wheel; 314, hand wheel; 315, worm gear; 316, worm; 317, screw; 4, upper cover; 401, upper oil groove; 402, cross-cutting scraper; 403, oil leveling scraper; 5, lower cover; 501, lower oil groove; 502, longitudinal cutting scraper; 6, eccentric groove wall; 601, blade; 602, sealing spring; 7, sliding table; 701, polishing bracket; 702, dust cover; 703, upper grinder; 704, lower grinder; 705, roller; 706, cleaning roller; 707, roller chuck; 708, polishing wheel; 709, servo motor; 710, columnar guide wheel; 711, centering spring. Detailed implementation mode

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0036] Please refer to Figures 1-10 , the present invention provides a technical solution: a metal strip rolling device with a surface polishing function, including a copper strip to be rolled, a base 1. Inlet brackets 201 and outlet brackets 202 are respectively arranged on both sides of the base 1. Transmission mechanisms are arranged on both the inlet bracket 201 and the outlet bracket 202. A rolling mechanism and a polishing mechanism are arranged on the base 1. The rolling mechanism and the polishing mechanism are arranged between the inlet bracket 201 and the outlet bracket 202. The rolling mechanism is arranged on one side of the inlet bracket 201, and the polishing mechanism is arranged on the side close to the outlet bracket 202. The transmission mechanism transfers the copper strip, the rolling mechanism rolls the copper strip, the polishing mechanism cleans the surface of the copper strip after rolling, and the polishing mechanism also polishes the surface of the copper strip.

[0037] The transmission mechanism includes an upper support rod 203 and a lower support rod 205. The upper support rod 203 and the lower support rod 205 are respectively rotatably installed at the upper end and the lower end of the outlet bracket 202. One end of the upper support rod 203 is rotatably provided with an upper traction wheel 204, and one end of the lower support rod 205 is rotatably installed with a lower traction wheel 206. The upper traction wheel 204 and the lower traction wheel 206 are close to each other. A power motor (not shown in the figure) is provided on both the upper support rod 203 and the lower support rod 205. The power motor on the upper support rod 203 is coaxially installed with the upper traction wheel 204, and the power motor on the lower support rod 205 is coaxially installed with the lower traction wheel 206;

[0038] A return spring 207 and a stopper are provided at both the upper end and the lower end of the outlet bracket 202. One end of the return spring 207 at the upper end of the outlet bracket 202 is connected to the upper support rod 203, and one end of the return spring 207 at the lower end of the outlet bracket 202 is connected to the lower support rod 205. The two stoppers limit the upper support rod 203 and the lower support rod 205 respectively. The settings on the inlet bracket 201 are the same as those on the outlet bracket 202. A cotton wheel 208 is rotatably provided on both the upper support rod 203 and the lower support rod 205 on the outlet bracket 202. A gear is provided at one end of the cotton wheel 208, and gears are also provided at one end of the upper traction wheel 204 and the lower traction wheel 206 on the outlet bracket 202. The gears on the two cotton wheels 208 are respectively meshed and driven with the gears on the upper traction wheel 204 and the lower traction wheel 206. The copper strip to be rolled enters between the upper traction wheel 204 and the lower traction wheel 206 from the outlet bracket 202. The copper strip pushes the upper support rod 203 and the lower support rod 205 to deflect towards the rolling mechanism. The return spring 207 pulls the upper support rod 203 and the lower support rod 205 through elastic force, so that sufficient frictional pressure is generated between the upper traction wheel 204 and the lower traction wheel 206 and the copper strip to be rolled. The power motor drives the upper traction wheel 204 and the lower traction wheel 206 to rotate, and transports the copper strip towards the rolling mechanism. While the upper traction wheel 204 and the lower traction wheel 206 are rotating, the cotton wheel 208 is driven to rotate by the gear. The cotton wheel 208 is in contact with the copper strip, and the rotation direction of the cotton wheel 208 is opposite to the moving direction of the copper strip, removing the metal chips and stains of the copper strip to the outside, and avoiding the influence of metal impurities on the rolling process.

[0039] The rolling mechanism includes a front support plate 2, a rear support plate 3, an upper rolling assembly, and a lower rolling assembly. The front support plate 2 is arranged at one end close to the inlet bracket 201, and the rear support plate 3 is arranged at one end close to the outlet bracket 202. The upper rolling assembly and the lower rolling assembly are slidably arranged on the front support plate 2 and the rear support plate 3. The upper rolling assembly includes a power connection plate 303 and an auxiliary connection plate 304. Between the power connection plate 303 and the auxiliary connection plate 304, a winding-in roller 305, a winding-out roller 306, and two auxiliary rollers 307 are rotatably arranged. Tooth grooves are provided at one ends of the winding-in roller 305, the winding-out roller 306, and the two auxiliary rollers 307 close to the power connection plate 303. Three idler gears 313 are arranged on the power connection plate 303, and each idler gear 313 is arranged between every two adjacent tooth grooves. A main motor 308 is arranged at one end of the power connection plate 303 away from the winding-in roller 305. The main motor 308 is coaxially installed with one idler gear 313. A screw 317 and a worm 316 are rotatably installed on the outer side of the rear support plate 3. A worm gear 315 is arranged in the middle of the screw 317. The thread directions of the screw 317 on both sides of the worm gear 315 are opposite. The worm 316 is in meshing transmission with the worm gear 315. A hand wheel 314 is installed at one end of the worm 316 away from the rear support plate 3. Two sliding grooves are also provided on the rear support plate 3. Nuts are arranged on both of the two longitudinal sliding blocks 301 connected to the rear support plate 3. The two nuts are respectively in threaded connection with both ends of the screw 317.

[0040] A pair of power hydraulic cylinders 211 are installed on the upper support rod 203. Arc-shaped racks 209 are provided on the upper support rod 203 and the lower support rod 205. The two arc-shaped racks 209 and the pair of power hydraulic cylinders 211 are located outside the inlet support 201. A straight rack 210 is installed on the piston rods of the pair of power hydraulic cylinders 211. The two arc-shaped racks 209 are respectively engaged with the two straight racks 210 for transmission. A push hydraulic cylinder 212 is provided outside the front end support plate 2. The push hydraulic cylinder 212 is a double-headed cylinder. Two sliding grooves are opened on the front end support plate 2. Flap pieces are provided on the two longitudinal sliding blocks 301 connected to the front end support plate 2. The two flap pieces extend out of the two sliding grooves on the front end support plate 2. The two piston rods on the push hydraulic cylinder 212 are respectively connected to the two flap pieces. The operator rotates by turning the handwheel 314. The handwheel 314 drives the worm gear 315 to rotate through the worm 316. The worm gear 315 drives the screw rod 317 to rotate. The screw rod 317 makes the longitudinal sliding blocks 301 move in opposite directions through the nuts, adjusting the distance between the two pay-off rollers 306. After the copper strip is payed off from between the two pay-off rollers 306, the copper strip is rolled to the final required thickness. When the copper strip pushes the upper support rod 203 and the lower support rod 205 to deflect towards the rolling mechanism, the upper support rod 203 and the lower support rod 205 simultaneously drive the two arc-shaped racks 209 to rotate. The two arc-shaped racks 209 push the two straight racks 210 to move. The two straight racks 210 make the pistons of the pair of power hydraulic cylinders 211 move. The hydraulic oil in the pair of power hydraulic cylinders 211 flows into the push hydraulic cylinder 212 through the pipeline. The two piston rods in the push hydraulic cylinder 212 push the two flap pieces upwards and downwards respectively. The two pay-in rollers 305 are separated from each other. The separation distance between the two pay-in rollers 305 is the same as the height of the copper strip. The copper strip is payed into between the two pay-in rollers 305 and is ready for rolling.

[0041] The main motor 308 is powered on to drive an idler gear 313 to rotate. Through the transmission between the tooth grooves and the idler gear 313, the pay-in rollers 305, the pay-off rollers 306 and the two auxiliary rollers 307 are driven to rotate at the same speed and in the same direction. After the copper strip enters between the two pay-in rollers 305, the thickness of the copper strip does not change. Thereafter, after passing through each pair of auxiliary rollers 307, the thickness of the copper strip becomes thinner. Finally, after passing through a pair of pay-off rollers 306, the rolling of the copper strip is completed. By arranging the two pairs of auxiliary rollers 307 between a pair of pay-in rollers 305 and a pair of pay-off rollers 306, the copper strip is gradually rolled to the required thickness, and the copper strip is rolled step by step. This can not only disperse the rolling pressure borne by each pair of pay-in rollers 305, pay-off rollers 306 and the two auxiliary rollers 307, but also reduce the heat generated by the large internal friction during the rolling of the copper strip, avoid the elastic deformation of the copper strip, and improve the rolling accuracy of the copper strip.

[0042] The winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307 are all hollow. An air pump is provided on the base 1. A pipeline is connected between the air pump (not shown in the figure) and the hollow parts of the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307. During the operation of the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307, the heat generated by the internal friction deformation of the copper strip is slowly transferred to the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307. The air pump is powered on to work, and the gas is introduced into each of the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307. The heat on the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307 is carried away by the air flow, reducing the thermal expansion of the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307 due to heat, and avoiding the gradual reduction of the distance between a pair of winding-out rollers 306, which may cause uneven rolling thickness of the copper strip.

[0043] On one side of the two power connection plates 303 where the main motor 308 is provided, there are also several eccentric groove walls 6. On one side of the winding-in roller 305, there are several blade grooves. A blade 601 is slidably arranged in each blade groove. A sealing spring 602 is arranged between each blade 601 and the blade groove. The several blades 601 are in contact with the eccentric groove walls 6. The structure of the winding-out roller 306 is the same as that of the winding-in roller 305, and the structure of the two auxiliary rollers 307 is also the same as that of the winding-in roller 305. Longitudinal sliders 301 are slidably arranged on the front end support plate 2 and the rear end support plate 3. Transverse sliders 302 are slidably arranged on each longitudinal slider 301. One end of the power connection plate 303 is rotatably installed on the transverse slider 302 in the front end support plate 2, and the other end of the power connection plate 303 is rotatably installed on the transverse slider 302 in the rear end support plate 3. The two transverse sliders 302 connected to the power connection plate 303 are on the same side. The auxiliary connection plate 304 is also rotatably connected to the two transverse sliders 302. The two transverse sliders 302 connected to the auxiliary connection plate 304 are on the same side. The lower rolling assembly and the upper rolling assembly are symmetrically arranged up and down, and the settings of the lower rolling assembly and the upper rolling assembly are the same. When the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307 are working, they drive several blades 601 to rotate in the eccentric groove walls 6. The air pressure in the groove wall at the end where the center of the eccentric groove wall 6 is far from the rotation center of the several blades 601 gradually decreases. The rolling oil in the oil tank 310 is sucked in through the upper oil suction hole or the lower oil suction hole through the main oil pipe 309. The pressure in the groove wall at the end where the center of the eccentric groove wall 6 is close to the rotation center of the several blades 601 gradually increases, and the rolling oil is extruded through the upper oil pressure hole and the lower oil pressure hole.

[0044] Upper covers 4 are provided at the upper ends of the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307 in the upper rolling assembly, and lower covers 5 are provided at the lower ends of the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307 in the lower rolling assembly. A number of upper covers 4 and a number of lower covers 5 are arranged between the power connection plate 303 and the auxiliary connection plate 304. Upper oil pressure holes and upper oil suction holes are respectively formed at the upper and lower ends of a number of eccentric groove walls 6 in the upper rolling assembly, and lower oil suction holes and lower oil pressure holes are respectively formed at the upper and lower ends of a number of eccentric groove walls 6 in the lower rolling assembly. A main oil pipe 309 is arranged between the two power connection plates 303. One end of the main oil pipe 309 is communicated with the oil tank 310. Pipelines are communicated between the main oil pipe 309 and the upper oil suction hole and the lower oil suction hole. Rolling oil is stored in the oil tank 310. The rolling oil extruded through the upper oil pressure hole in the eccentric groove wall 6 enters the upper cover 4 through the upper branch pipe 311. The rolling oil directly drips onto the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307. As the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307 rotate, the oil spreading bar 403 evenly spreads and scrapes the rolling oil onto the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307. The rolling oil dripping onto the rolling oil extruded through the lower oil pressure hole in the eccentric groove wall 6 enters the lower cover 5 through the lower branch pipe 312 and accumulates at the lowest position of the lower cover 5. When the surfaces of the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307 rotate to the lowest position of the lower cover 5, the surfaces of the winding-in roller 305, the winding-out roller 306 and the two auxiliary rollers 307 dip into the rolling oil.

[0045] An upper branch pipe 311 is connected between each upper pressure oil hole and each upper cover 4, a lower branch pipe 312 is connected between each lower pressure oil hole and the bottom of each lower cover 5, an upper oil groove 401 is arranged outside the upper cover 4, a cross-cutting scraper 402 is arranged between the upper cover 4 and the winding roller 305, the winding roller 306 and the two auxiliary rollers 307, one end of the cross-cutting scraper 402 is connected to the upper oil groove 401, and the upper cover 4 is close to the upper branch pipe 311. An oil-distributing scraper 403 is arranged inside one end of each roll, and a plurality of oil-distributing scrapers 403 are in contact with the winding roller 305, the unwinding roller 306 and the two auxiliary rollers 307. A lower oil groove 501 is arranged outside the lower cover 5. A longitudinal scraper 502 is arranged between the lower cover 5 and the winding roller 305, the unwinding roller 306 and the two auxiliary rollers 307. One end of the longitudinal scraper 502 is connected to the lower oil groove 501, and the rolling oil is reduced by the rolling roller 305. 05. External friction occurs when the unwinding roller 306 and the two auxiliary rollers 307 are rolling the copper strip. After the rolling is completed, a small amount of copper metal powder is attached to the rolling oil remaining on the winding roller 305, the unwinding roller 306 and the two auxiliary rollers 307, forming waste oil that is not conducive to rolling. The cross-cutting scraper 402 in the upper cover 4 scrapes the waste oil on the winding roller 305, the unwinding roller 306 and the two auxiliary rollers 307, and finally enters the upper oil tank 401. The longitudinal scraper 502 in the lower cover 5 scrapes the waste oil on the winding roller 305, the unwinding roller 306 and the two auxiliary rollers 307 and flows into the lower oil tank 501. All the waste oil in the upper oil tank 401 and the lower oil tank 501 flows into the top of the oil tank 310. A filter is arranged above the oil tank 310. The copper metal powder in the waste oil is blocked by the filter, and the clean rolling oil enters the oil tank 310 for recycling.

[0046] The polishing mechanism includes a sliding table 7, on which a dust-proof cover 702 is slidably mounted. Inside the dust-proof cover 702, an upper grinding device 703 and a lower grinding device 704 are slidably mounted. The ends of the upper grinding device 703 and the lower grinding device 704 away from the rear end support plate 3 extend out of the dust-proof cover 702. Between the upper grinding device 703 and the interior of the dust-proof cover 702, two centering springs 711 are provided. At one end of the upper grinding device 703 close to the rear end support plate 3, a ramp surface is provided, on which several rollers 705 are arranged. On the upper grinding device 703, three collet chucks 707 are slidably mounted. Between each collet chuck 707 and the upper grinding device 703, a spring is installed. On each collet chuck 707, a cleaning roller 706 is rotatably mounted. At the end of the upper grinding device 703 extending out of the dust-proof cover 702, a polishing wheel 708 is rotatably mounted. The structure of the lower grinding device 704 is the same as that of the upper grinding device 703. The upper grinding device 703 and the lower grinding device 704 are symmetrically arranged up and down inside the dust-proof cover 702. The copper strip unrolled from a pair of unrolling rollers 306 enters between the upper grinding device 703 and the lower grinding device 704. The several rollers 705 on the ramp surfaces of the upper grinding device 703 and the lower grinding device 704 guide the copper strip, so that the copper strip enters between the cleaning rollers 706 for cleaning. The collet chucks 707 use the springs between the upper grinding device 703 and the lower grinding device 704 to press the cleaning rollers 706 against the surface of the copper strip, cleaning the rolling oil on the surface of the copper strip.

[0047] Outside the upper grinding device 703, a columnar guide wheel 710 is rotatably arranged. The columnar guide wheel 710 is coaxially installed with the polishing wheel 708 in the upper grinding device 703. An annular guide groove is provided on the columnar guide wheel 710. On the base 1, a column (not shown in the figure) is provided, and the column is slidably mounted in the guide groove. The polishing mechanism includes a polishing bracket 701. On the polishing bracket 701, two servo motors 709 are provided. One servo motor 709 is coaxially connected to the columnar guide wheel 710, and the other servo motor 709 is coaxially installed with the polishing wheel 708 in the lower grinding device 704. At the connection between the servo motor 709 and the polishing wheel 708, a sliding shaft sleeve is provided. At the connection between the servo motor 709 and the columnar guide wheel 710, a sliding shaft sleeve is also provided. The sliding shaft sleeve is slidably connected to the motor shaft of the servo motor 709. The two servo motors 709 drive the two polishing wheels 708 to rotate, respectively polishing the surface of the copper strip. While the servo motor 709 drives the polishing wheel 708 to rotate, it drives the columnar guide wheel 710 to rotate. The annular guide groove slides in the column. The upper grinding device 703 drives the dust-proof cover 702 to slide back and forth along the sliding table 7, so that the upper grinding device 703 and the lower grinding device 704 move back and forth in a direction perpendicular to the movement of the copper strip while cleaning and polishing the copper strip, making the polishing of the copper strip by the polishing wheel 708 more uniform. After the copper strip is polished, it is sent out through the upper traction wheel 204 and the lower traction wheel 206 on the outlet bracket 202.

[0048] Working principle of the present invention: When using this device to roll copper strips, the operator rotates the handwheel 314. The handwheel 314 drives the worm wheel 315 to rotate through the worm 316. The worm wheel 315 drives the screw rod 317 to rotate. The screw rod 317 moves the longitudinal slider 301 in opposite directions through the nut, adjusting the distance between the two pay-off rollers 306. The copper strip to be rolled enters between the upper traction wheel 204 and the lower traction wheel 206 from the outlet bracket 202. The upper support rod 203 and the lower support rod 205 deflect towards the rolling mechanism. The return spring 207 pulls the upper support rod 203 and the lower support rod 205 through elastic force, generating sufficient frictional pressure between the upper traction wheel 204 and the lower traction wheel 206 and the copper strip to be rolled. The power motor drives the upper traction wheel 204 and the lower traction wheel 206 to rotate, transporting the copper strip towards the rolling mechanism. While the upper traction wheel 204 and the lower traction wheel 206 are rotating, they drive the cotton wheel 208 to rotate through gears. The cotton wheel 208 contacts the copper strip, and the rotation direction of the cotton wheel 208 is opposite to the moving direction of the copper strip, removing the metal debris and stains on the copper strip to the outside.

[0049] When the copper strip pushes the upper support rod 203 and the lower support rod 205 to deflect towards the rolling mechanism, the upper support rod 203 and the lower support rod 205 simultaneously drive the two arc-shaped racks 209 to rotate. The two arc-shaped racks 209 push the two straight racks 210 to move. The two straight racks 210 move the pistons of a pair of power hydraulic cylinders 211. The hydraulic oil in the pair of power hydraulic cylinders 211 flows into the jacking hydraulic cylinder 212 through the pipeline. The two piston rods in the jacking hydraulic cylinder 212 push the two baffles upwards and downwards respectively. The two pay-in rollers 305 are separated from each other. The separation distance between the two pay-in rollers 305 is the same as the height of the copper strip. The copper strip is fed into the space between the two pay-in rollers 305 for rolling preparation. The main motor 308 is powered on to drive an idler gear 313 to rotate. Through the transmission between the tooth grooves and the idler gear 313, the pay-in rollers 305, the pay-off rollers 306, and the two auxiliary rollers 307 rotate at the same speed and in the same direction. After the copper strip enters between the two pay-in rollers 305, the thickness of the copper strip does not change. After passing through each pair of auxiliary rollers 307, the thickness of the copper strip becomes thinner. Finally, after passing through a pair of pay-off rollers 306, the rolling of the copper strip is completed. By arranging the two pairs of auxiliary rollers 307 between a pair of pay-in rollers 305 and a pair of pay-off rollers 306, the copper strip is gradually rolled to the required thickness.

[0050] The air pump is powered on to start working, and the gas is passed into each winding roller 305, the winding roller 306 and the two auxiliary rollers 307. The airflow takes away the heat on the winding roller 305, the winding roller 306 and the two auxiliary rollers 307, and reduces the thermal expansion of the winding roller 305, the winding roller 306 and the two auxiliary rollers 307 due to heat, so as to avoid the distance between the pair of winding rollers 306 gradually decreasing, resulting in uneven rolling thickness of the copper strip. While 307 is working, it drives several blades 601 to rotate in the eccentric groove wall 6. The air pressure in the groove wall at the end where the center of the eccentric groove wall 6 is farther from the rotation center of the several blades 601 gradually decreases, and the rolling oil in the oil tank 310 is sucked in through the upper oil suction hole or the lower oil suction hole through the main oil pipe 309. The pressure in the groove wall at the end where the center of the eccentric groove wall 6 is closer to the rotation center of the several blades 601 gradually increases, and the rolling oil is squeezed out through the upper oil pressure hole and the lower oil pressure hole.

[0051] The oil tank 310 stores rolling oil. The rolling oil squeezed out through the oil pressure hole on the eccentric groove wall 6 enters the upper cover 4 through the upper branch pipe 311. The rolling oil directly drips on the winding roller 305, the winding roller 306 and the two auxiliary rollers 307. As the winding roller 305, the winding roller 306 and the two auxiliary rollers 307 rotate, the oil scraper 403 evenly scrapes the rolling oil on the winding roller 305, the winding roller 306 and the two auxiliary rollers 307, and drips on the rolling oil squeezed out through the oil pressure hole on the eccentric groove wall 6. The oil enters the lower cover 5 through the lower branch pipe 312 and accumulates at the lowest point of the lower cover 5. When the surfaces of the winding roller 305, the winding roller 306 and the two auxiliary rollers 307 rotate to the lowest point of the lower cover 5, the rolling oil of the winding roller 305, the winding roller 306 and the two auxiliary rollers 307 are The surface is dipped into rolling oil. After rolling, a small amount of copper metal powder is attached to the rolling oil remaining on the winding roller 305, the winding roller 306 and the two auxiliary rollers 307, forming waste oil that is not conducive to rolling. The cross-cutting scraper 402 in the upper cover 4 scrapes the waste oil on the winding roller 305, the winding roller 306 and the two auxiliary rollers 307, and finally enters the upper oil tank 401. The longitudinal scraper 502 in the lower cover 5 scrapes the waste oil on the winding roller 305, the winding roller 306 and the two auxiliary rollers 307 and flows into the lower oil tank 501. All the waste oil in the upper oil tank 401 and the lower oil tank 501 flows into the top of the oil tank 310. A filter is arranged above the oil tank 310. The copper metal powder in the waste oil is blocked by the filter, and the clean rolling oil enters the oil tank 310 for recycling.

[0052] The copper strip unrolled from a pair of unrolling rollers 306 enters between the upper grinding device 703 and the lower grinding device 704. A number of rollers 705 on the inclined surfaces of the upper grinding device 703 and the lower grinding device 704 guide the copper strip, so that the copper strip enters between the cleaning rollers 706 for cleaning. The roller chuck 707 uses the spring between the upper grinding device 703 and the lower grinding device 704 to press the cleaning rollers 706 against the surface of the copper strip, cleaning the rolling oil on the surface of the copper strip. Two servo motors 709 drive two polishing wheels 708 to rotate, respectively polishing the surface of the copper strip. While the servo motor 709 drives the polishing wheel 708 to rotate, it also drives the columnar guide wheel 710 to rotate. The annular guide groove slides in the column. The upper grinding device 703 drives the dust cover 702 to slide back and forth along the slide table 7, so that the upper grinding device 703 and the lower grinding device 704 move back and forth in a direction perpendicular to the movement of the copper strip while cleaning and polishing the copper strip, making the polishing of the copper strip by the polishing wheel 708 more uniform. After the copper strip is polished, it is sent out through the upper traction wheel 204 and the lower traction wheel 206 on the outlet bracket 202.

[0053] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0054] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A metal strip rolling device with a surface polishing function, including a metal strip to be rolled, characterized in that: It includes a base (1). Entrance brackets (201) and exit brackets (202) are respectively arranged on both sides of the base (1). Transfer mechanisms are arranged on both the entrance brackets (201) and the exit brackets (202). A rolling mechanism and a polishing mechanism are arranged on the base (1). The rolling mechanism and the polishing mechanism are arranged between the entrance brackets (201) and the exit brackets (202). The rolling mechanism is arranged on one side of the entrance brackets (201), and the polishing mechanism is arranged on the side close to the exit brackets (202). The transfer mechanism transfers the metal strip, the rolling mechanism rolls the metal strip, the polishing mechanism cleans the surface of the metal strip after rolling, and the polishing mechanism also polishes the surface of the metal strip; The transfer mechanism includes an upper support rod (203) and a lower support rod (205). The upper support rod (203) and the lower support rod (205) are respectively rotatably installed at the upper end and the lower end of the exit brackets (202). One end of the upper support rod (203) is rotatably provided with an upper traction wheel (204), and one end of the lower support rod (205) is rotatably installed with a lower traction wheel (206). The upper traction wheel (204) and the lower traction wheel (206) are close to each other. A power motor is arranged on both the upper support rod (203) and the lower support rod (205). The power motor on the upper support rod (203) is coaxially installed with the upper traction wheel (204), and the power motor on the lower support rod (205) is coaxially installed with the lower traction wheel (206); A return spring (207) and a stop block are arranged at both the upper end and the lower end of the exit brackets (202). One end of the return spring (207) at the upper end of the exit brackets (202) is connected to the upper support rod (203), and one end of the return spring (207) at the lower end of the exit brackets (202) is connected to the lower support rod (205). The two stop blocks respectively limit the upper support rod (203) and the lower support rod (205). The arrangement on the entrance brackets (201) is the same as that on the exit brackets (202). A cotton wheel (208) is rotatably arranged on both the upper support rod (203) and the lower support rod (205) on the exit brackets (202). A gear is arranged at one end of the cotton wheel (208). Gears are also arranged at one end of the upper traction wheel (204) and the lower traction wheel (206) on the exit brackets (202). The gears on the two cotton wheels (208) are respectively meshed and driven with the gears on the upper traction wheel (204) and the lower traction wheel (206); The rolling mechanism includes a front support plate (2). A pair of power hydraulic cylinders (211) are installed on the upper support rod (203). Arc-shaped racks (209) are arranged on the upper support rod (203) and the lower support rod (205). The two arc-shaped racks (209) and the pair of power hydraulic cylinders (211) are located outside the inlet bracket (201). A straight rack (210) is installed on the piston rods of the pair of power hydraulic cylinders (211). The two arc-shaped racks (209) are respectively in meshing transmission with the two straight racks (210). A pushing hydraulic cylinder (212) is arranged outside the front support plate (2). The pushing hydraulic cylinder (212) is a double-headed cylinder. Two sliding grooves are formed on the front support plate (2). Flap pieces are arranged on the two longitudinal sliding blocks (301) connected to the front support plate (2). The two piston rods on the pushing hydraulic cylinder (212) are respectively connected to the two flap pieces; The rolling mechanism includes an upper rolling assembly and a lower rolling assembly. The upper rolling assembly includes a power connection plate (303) and an auxiliary connection plate (304). A winding roller (305), an unwinding roller (306), and a plurality of auxiliary rollers (307) are rotatably arranged between the power connection plate (303) and the auxiliary connection plate (304). The lower rolling assembly is symmetrically arranged with the upper rolling assembly up and down, and the lower rolling assembly has the same structure as the upper rolling assembly; Upper covers (4) are arranged at the upper ends of the winding roller (305), the unwinding roller (306), and the plurality of auxiliary rollers (307) in the upper rolling assembly. Lower covers (5) are arranged at the lower ends of the winding roller (305), the unwinding roller (306), and the plurality of auxiliary rollers (307) in the lower rolling assembly. The plurality of upper covers (4) and the plurality of lower covers (5) are arranged between the power connection plate (303) and the auxiliary connection plate (304). A plurality of eccentric groove walls (6) are further arranged on one side of the two power connection plates (303) where the main motor (308) is arranged. Upper oil pressure holes and upper oil suction holes are respectively formed at the upper and lower ends of the plurality of eccentric groove walls (6) in the upper rolling assembly. Lower oil suction holes and lower oil pressure holes are respectively formed at the upper and lower ends of the plurality of eccentric groove walls (6) in the lower rolling assembly. A main oil pipe (309) is arranged between the two power connection plates (303). One end of the main oil pipe (309) is communicated with an oil tank (310). Pipes are communicated between the main oil pipe (309) and the upper oil suction hole and the lower oil suction hole; There is an upper branch pipe (311) connected between each of the upper oil holes and each upper cover (4). There is a lower branch pipe (312) connected between each of the lower oil holes and the bottom of each lower cover (5). An upper oil groove (401) is arranged outside the upper cover (4). A cross-cutting scraper (402) is arranged between the upper cover (4), the winding-in roller (305), the winding-out roller (306) and several auxiliary rollers (307). One end of the cross-cutting scraper (402) is connected to the upper oil groove (401). Uniform oil scraping strips (403) are arranged inside one end of the upper cover (4) close to the upper branch pipe (311). Several of the uniform oil scraping strips (403) are in contact with the winding-in roller (305), the winding-out roller (306) and several auxiliary rollers (307); A lower oil groove (501) is arranged outside the lower cover (5). A longitudinal cutting scraper (502) is arranged between the lower cover (5), the winding-in roller (305), the winding-out roller (306) and several auxiliary rollers (307). One end of the longitudinal cutting scraper (502) is connected to the lower oil groove (501).

2. The metal strip rolling device with a surface polishing function according to claim 1, wherein: The rolling mechanism includes a rear end support plate (3). The front end support plate (2) is arranged at one end close to the inlet support (201). The rear end support plate (3) is arranged at one end close to the outlet support (202). The upper rolling assembly and the lower rolling assembly are slidably arranged on the front end support plate (2) and the rear end support plate (3). Tooth grooves are formed at one end of the winding-in roller (305), the winding-out roller (306) and several auxiliary rollers (307) close to the power connection plate (303). Several idle pulleys (313) are arranged on the power connection plate (303). Each of the idle pulleys (313) is arranged between every two adjacent tooth grooves. A main motor (308) is arranged at one end of the power connection plate (303) far from the winding-in roller (305). The main motor (308) is coaxially installed with an idle pulley (313); The winding-in roller (305), the winding-out roller (306) and several auxiliary rollers (307) are all hollow. An air pump is arranged on the base (1). A pipeline is connected between the air pump and the hollow parts of the winding-in roller (305), the winding-out roller (306) and several auxiliary rollers (307).

3. A metal strip rolling device with a surface polishing function according to claim 2, characterized in that: Several blade grooves are formed on one side of the winding-in roller (305). A blade (601) is slidably arranged in each blade groove. A sealing spring (602) is arranged between each blade (601) and the blade groove. Several of the blades (601) are in contact with the eccentric groove wall (6). The structure of the winding-out roller (306) is the same as that of the winding-in roller (305). The structure of several of the auxiliary rollers (307) is also the same as that of the winding-in roller (305); A longitudinal slider (301) is slidably arranged on the front end support plate (2) and the rear end support plate (3). A transverse slider (302) is slidably arranged on each longitudinal slider (301). One end of the power connecting plate (303) is rotatably installed on the transverse slider (302) in the front end support plate (2), and the other end of the power connecting plate (303) is rotatably installed on the transverse slider (302) in the rear end support plate (3). The two transverse sliders (302) connected to the power connecting plate (303) are on the same side. The auxiliary connecting plate (304) is also rotatably connected to the two transverse sliders (302). The two transverse sliders (302) connected to the auxiliary connecting plate (304) are on the same side.

4. A metal strip rolling device with a surface polishing function according to claim 3, characterized in that: A screw rod (317) and a worm (316) are rotatably installed on the outer side of the rear end support plate (3). A worm gear (315) is arranged in the middle of the screw rod (317). The thread directions of the screw rod (317) on both sides of the worm gear (315) are opposite. The worm (316) is in meshing transmission with the worm gear (315). A hand wheel (314) is installed at one end of the worm (316) away from the rear end support plate (3). Two chutes are also opened on the rear end support plate (3). Nuts are arranged on the two longitudinal sliders (301) connected to the rear end support plate (3). The two nuts are respectively threadedly connected to the two ends of the screw rod (317).

5. A metal strip rolling device with a surface polishing function according to claim 4, characterized in that: The polishing mechanism includes a sliding table (7). A dust-proof cover (702) is slidably installed on the sliding table (7). An upper grinding device (703) and a lower grinding device (704) are slidably installed in the dust-proof cover (702). The ends of the upper grinding device (703) and the lower grinding device (704) away from the rear end support plate (3) extend out of the dust-proof cover (702). Two centering springs (711) are arranged between the upper grinding device (703) and the interior of the dust-proof cover (702). A slope surface is arranged at one end of the upper grinding device (703) close to the rear end support plate (3). A number of rollers (705) are arranged on the slope surface. A number of roller chucks (707) are slidably installed on the upper grinding device (703). A spring is installed between each roller chuck (707) and the upper grinding device (703). A cleaning roller (706) is rotatably installed on each roller chuck (707). A polishing wheel (708) is rotatably installed at the end of the upper grinding device (703) extending out of the dust-proof cover (702). The structure of the lower grinding device (704) is the same as that of the upper grinding device (703). The upper grinding device (703) and the lower grinding device (704) are symmetrically arranged up and down in the dust-proof cover (702).

6. The metal strip rolling device with a surface polishing function according to claim 5, characterized in that: An external rotation of the upper grinding device (703) is provided with a columnar guide wheel (710). The columnar guide wheel (710) is coaxially installed with a polishing wheel (708) in the upper grinding device (703). An annular guide groove is formed in the columnar guide wheel (710). A column is provided on the base (1), and the column is slidably installed in the guide groove. The polishing mechanism includes a polishing bracket (701). Two servo motors (709) are provided on the polishing bracket (701). One servo motor (709) is coaxially connected to the columnar guide wheel (710), and the other servo motor (709) is coaxially installed with a polishing wheel (708) in the lower grinding device (704). A sliding bushing is provided at the connection between the servo motor (709) and the polishing wheel (708), and a sliding bushing is also provided at the connection between the servo motor (709) and the columnar guide wheel (710). The sliding bushing is slidably connected to the motor shaft of the servo motor (709).

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