Surface polishing equipment for composite strip

Abstract

The utility model provides surface polishing equipment for a composite strip. The surface polishing equipment comprises an upper surface polishing device and / or a lower surface polishing device, the upper surface grinding device comprises a lower pressing roller, a first brush wheel and a first adjusting piece used for adjusting the distance between the first brush wheel and the lower pressing roller, and the upper surface and the lower surface of the composite strip abut against the bottom of the first brush wheel and the top of the lower pressing roller correspondingly. The lower surface grinding device comprises an upper pressing roller, a second brush wheel and a second adjusting piece used for adjusting the distance between the second brush wheel and the upper pressing roller, and the upper surface and the lower surface of the composite strip abut against the bottom of the upper pressing roller and the top of the second brush wheel correspondingly. The surface of the composite strip is ensured to be subjected to uniform and consistent grinding force, the flatness of the ground surface is improved, the grinding depth can be adjusted, and the problem that surface pollutants are not ground thoroughly is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal composite strip processing technical field, concretely relates to a surface polishing equipment of composite strip. BACKGROUND

[0002] Copper-aluminum composite strip has the advantages of good mechanical property, stable chemical property, high composite strength, and is widely used in the fields of power battery, energy storage power station, photovoltaic power generation, power transmission, electronic communication device, etc. In the production process of the composite strip, the copper-aluminum composite strip surface is easy to leave other impurities, oxide skin and other pollutants, which affects the quality of finished products, so a polishing device is needed to polish and remove the surface pollutants. However, the current copper-aluminum composite strip polishing has the problems of uneven surface polishing and incomplete surface pollutant polishing. Therefore, we propose a surface polishing equipment of composite strip to solve the above problems. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a surface polishing equipment of composite strip, which solves the problems of uneven surface polishing and incomplete surface pollutant polishing.

[0004] The technical scheme of the utility model is as follows:

[0005] A surface polishing equipment of composite strip, comprising an upper surface polishing device and / or a lower surface polishing device, which are respectively used for polishing the upper surface and / or the lower surface of the composite strip;

[0006] The upper surface polishing device comprises a lower pressing roller, a first brush wheel arranged above the lower pressing roller, and a first adjusting piece connected with the first brush wheel, the upper and lower surfaces of the composite strip abut against the bottom of the first brush wheel and the top of the lower pressing roller respectively, and the first adjusting piece is used for adjusting the distance between the first brush wheel and the lower pressing roller;

[0007] The lower surface polishing device comprises an upper pressing roller, a second brush wheel arranged below the upper pressing roller, and a second adjusting piece connected with the second brush wheel, the upper and lower surfaces of the composite strip abut against the bottom of the upper pressing roller and the top of the second brush wheel respectively, and the second adjusting piece is used for adjusting the distance between the second brush wheel and the upper pressing roller.

[0008] Preferably, the first adjusting piece is a vertically arranged electric cylinder, and the output end of the electric cylinder is connected with the first brush wheel;

[0009] And / or, the second adjusting piece is a vertically arranged electric cylinder, and the output end of the electric cylinder is connected with the second brush wheel.

[0010] Preferably, the upper surface polishing device further comprises a material belt clamping assembly arranged on one side of the lower pressing roller;

[0011] And / or, the lower surface polishing device further comprises a material belt clamping assembly arranged on one side of the upper pressing roller;

[0012] The material belt clamping assembly comprises a fixedly installed upper pressing plate, a lower pressing plate arranged below the upper pressing plate, a bolt penetrating through the upper pressing plate and the lower pressing plate, a nut screwed at the bottom of the bolt, and a spring arranged between the nut and the top surface of the upper pressing plate, and a channel is formed between the upper pressing plate and the lower pressing plate for the composite strip to pass through, and the height of the channel can be adjusted by screwing the nut.

[0013] Preferably, the composite strip inlet end and the composite strip outlet end of the upper surface polishing device are each provided with a first guide assembly, the first guide assembly comprising a first guide roller and a first cylinder for adjusting the height of the first guide roller, the output end of the first cylinder being rotatably connected to the first guide roller, and the top surface of the composite strip abutting against the bottom of the first guide roller.

[0014] And / or, the composite strip inlet end and the composite strip outlet end of the lower surface polishing device are each provided with a second guide assembly, the second guide assembly comprising a second guide roller and a second cylinder for adjusting the height of the second guide roller, the output end of the second cylinder being rotatably connected to the second guide roller, and the bottom surface of the composite strip abutting against the top of the second guide roller.

[0015] Preferably, the composite strip inlet end and the composite strip outlet end of the upper surface polishing device are each provided with an encoder.

[0016] And / or, the composite strip inlet end and the composite strip outlet end of the lower surface polishing device are each provided with an encoder.

[0017] Preferably, three lower pressing rollers are arranged in sequence along the running direction of the composite strip, and three first brush wheels are arranged in sequence along the running direction of the composite strip, the three first brush wheels being a Scotch-Brite brush wheel, a nylon brush wheel and a wool felt brush wheel in sequence.

[0018] And / or, three upper pressing rollers are arranged in sequence along the running direction of the composite strip, and three second brush wheels are arranged in sequence along the running direction of the composite strip, the three second brush wheels being a Scotch-Brite brush wheel, a nylon brush wheel and a wool felt brush wheel in sequence.

[0019] Preferably, the upper surface polishing device further comprises a first protective cover, the protective cover being arranged above the first brush wheel and covering the lower pressing roller and the first brush wheel.

[0020] And / or, the lower surface polishing device further comprises a second protective cover, the protective cover being arranged above the upper pressing roller and covering the upper pressing roller and the second brush wheel.

[0021] Preferably, the device further comprises a cleaning device, the cleaning device comprising a water tank and a plurality of water pipes, the water inlet ends of the plurality of water pipes being communicated with the water tank through a communication pipe, and the water outlet ends of the water pipes being directed towards the composite strip.

[0022] Preferably, the hot air device arranged at the output end of the equipment comprises at least two hot air knives arranged above and below and a hot air blower, and the air outlet of the hot air knife faces the composite strip, and the air outlet of the hot air blower is communicated with the air inlet of the hot air knife.

[0023] Preferably, the hydrogen detector arranged above the upper surface polishing device or above the lower surface polishing device is arranged to detect the hydrogen content in the environment.

[0024] Compared with the prior art, the device has the following beneficial effects:

[0025] (1) The upper surface polishing device of the equipment comprises a lower pressing roller, a first brush wheel and a first adjusting member, the lower surface polishing device comprises an upper pressing roller, a second brush wheel and a second adjusting member, the distance between the first brush wheel and the lower pressing roller is adjusted by the first adjusting member, and the distance between the second brush wheel and the upper pressing roller is adjusted by the second adjusting member, so that the upper surface and / or the lower surface of the composite strip can be ensured to be subjected to uniform and consistent polishing force, thereby avoiding the phenomenon of local excessive polishing or non-polishing, improving the surface flatness after polishing, and the distance control can help to adjust the polishing depth, so that the defects on the surface of the composite strip are properly removed, the problem of incomplete polishing of surface contaminants is solved, and the structure and performance of the strip itself are not damaged;

[0026] (2) The adjustment of the distance between the brush wheel and the pressing roller can protect the brush wheel and the driving part thereof from unnecessary damage, prolong the service life of the surface polishing device, and ensure the stability of the device during polishing, thereby preventing safety hazards caused by vibration or instability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic view of the device;

[0028] Figure 2 It is a three-dimensional structural schematic view of the upper surface polishing device in the device;

[0029] Figure 3 It is a three-dimensional structural schematic view of the lower surface polishing device in the device;

[0030] Figure 4 It is a three-dimensional structural schematic view of the lower surface polishing device in the device;

[0031] Figure 5 It is a three-dimensional structural schematic view of the first brush wheel driving part in the device;

[0032] Figure 6 It is a structural schematic view of the strip clamping assembly in the device.

[0033] FIG.:

[0034] 1 - cabinet; 2 - rack; 3 - upper surface polishing device; 31 - lower pressing roller; 32 - first brush wheel; 33 - first adjusting member; 34 - material belt clamping assembly; 341 - upper pressing plate; 342 - lower pressing plate; 343 - bolt; 344 - nut; 345 - spring; 346 - connecting plate; 347 - rib plate; 35 - first guide assembly; 351 - first guide roller; 352 - first air cylinder; 353 - mounting cover; 354 - cam follower; 36 - first protective cover; 37 - first mounting seat; 38 - first motor; 39 - synchronous wheel; 310 - synchronous belt; 311 - mounting frame; 4 - lower surface polishing device; 41 - upper pressing roller; 42 - second brush wheel; 43 - second adjusting member; 44 - second guide assembly; 441 - second guide roller; 442 - second air cylinder; 45 - second protective cover; 46 - second mounting seat; 47 - second motor; 5 - encoder; 6 - cleaning device; 61 - water pipe; 7 - hot air device; 71 - hot air knife; 72 - hot air blower; 8 - hydrogen detector. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] Referring to Figures 1 to 3The utility model provides a kind of surface polishing equipment of composite strip, including upper surface polishing device and lower surface polishing device being sequentially arranged along the direction of travel of composite strip, respectively for polishing the upper surface and lower surface of composite strip, upper surface polishing device 3 and lower surface polishing device 4 can be simultaneously arranged in polishing equipment, the upper surface and lower surface of composite strip are polished, the order of upper surface polishing device 3 and lower surface polishing device 4 is not limited, can also be independently arranged in polishing equipment, independently polish the upper surface or lower surface of composite strip;

[0038] Wherein, upper surface polishing device 3 includes down roller 31, first brush wheel 32 being arranged above down roller 31 and first adjusting part 33 being connected with first brush wheel 32, the upper surface and lower surface of composite strip are respectively abutted with the bottom of first brush wheel 32 and the top of down roller 31, first adjusting part 33 is used to adjust the distance between first brush wheel 32 and down roller 31, by adjusting the distance between first brush wheel 32 and down roller 31, it can ensure that the upper surface of composite strip receives uniform and consistent polishing force, to avoid local excessive polishing or the phenomenon of not polishing, improve the surface flatness after polishing, and distance control can help to adjust the depth of polishing, so that the flaw of the upper surface of composite strip is properly removed, while the structure and performance of the strip itself are not damaged;

[0039] Lower surface polishing device 4 includes upper roller 41, second brush wheel 42 being arranged below upper roller 41 and second adjusting part 43 being connected with second brush wheel 42, the upper surface and lower surface of composite strip are respectively abutted with the bottom of upper roller 41 and the top of second brush wheel 42, second adjusting part 43 is used to adjust the distance between second brush wheel 42 and upper roller 41, by adjusting the distance between second brush wheel 42 and upper roller 41, it can ensure that the lower surface of composite strip receives uniform and consistent polishing force, to avoid local excessive polishing or the phenomenon of not polishing, improve the surface flatness after polishing, and distance control can help to adjust the depth of polishing, so that the flaw of the upper surface of composite strip is properly removed, while the structure and performance of the strip itself are not damaged.

[0040] In addition, since too close or too far distance can lead to excessive wear of brush wheel and its driving part, and the distance between brush wheel and pressure roller is adjusted in the application, the brush wheel and its driving part can be protected from unnecessary damage, the service life of the device is prolonged, and the stability of the device during polishing can be ensured, to prevent safety hazards caused by vibration or instability of the device.

[0041] Specifically, first adjusting part 33 is vertically arranged electric cylinder, the output end of electric cylinder is connected with first brush wheel 32, and electric cylinder drives first brush wheel 32 to move through driving its lead screw;

[0042] Similarly, the second adjusting member 43 is a vertical electric cylinder, the output end of the electric cylinder is connected with the second brush wheel 42, and the electric cylinder drives the second brush wheel 42 to move by driving the screw rod of the electric cylinder.

[0043] Referring to Figure 3 and Figure 5 The upper surface polishing device 3 comprises a first mounting seat 37, the first adjusting member 33 is mounted on the back of the first mounting seat 37, and the lower pressing roller 31 and the first brush wheel 32 are located on the front of the first mounting seat 37; the upper surface polishing device 3 further comprises a driving part of the first brush wheel 32, the driving part of the first brush wheel 32 comprises a first motor 38, a synchronous wheel 39, a synchronous belt 310 and a mounting rack 311, the output end of the first motor 38 is in transmission connection with the first brush wheel 32 to drive the first brush wheel 32 to rotate, in the embodiment, the first motor 38 is mounted on the mounting rack 311 by arranging the mounting rack 311, the synchronous wheel 39 and the synchronous belt 310 are arranged on the mounting rack 311, the synchronous wheel 39 is coaxially arranged with the first brush wheel 32, the output end of the first motor 38 is coaxially provided with a rotating wheel (not shown in the figure), and the synchronous wheel 39 is connected with the rotating wheel through the synchronous belt 310 to enable the first motor 38 to drive the first brush wheel 32 to rotate; the screw rod of the electric cylinder is connected with the mounting rack 311, and the first brush wheel 32 is driven to move by moving the mounting rack 311; the lower part of the first mounting seat 37 is hollow to leave space for the connection between the first brush wheel 32 and the synchronous wheel 39 and provide a movement space of the first brush wheel 32;

[0044] Similarly, the lower surface polishing device 4 comprises a second mounting seat 46, the second adjusting member 43 is mounted on the back of the second mounting seat 46, and the upper pressing roller 41 and the second brush wheel 42 are located on the front of the second mounting seat 46; the lower surface polishing device 4 further comprises a driving part of the second brush wheel 42, the driving part of the second brush wheel 42 comprises a second motor 47, a synchronous wheel, a synchronous belt and a mounting rack, and the driving principle is same as the working principle of the driving part of the first brush wheel 32.

[0045] Preferably, referring to Figure 2 , Figure 3 and Figure 6 The upper surface polishing device 3 further comprises a material belt clamping assembly 34 arranged on one side of the lower pressing roller 31.

[0046] Similarly, the lower surface polishing device 4 further comprises a material belt clamping assembly 34 arranged on one side of the upper pressing roller 41.

[0047] The material belt clamping assembly 34 in the upper surface polishing device 3 and the lower surface polishing device 4 is the same structure, the material belt clamping assembly 34 includes a fixedly installed upper pressing plate 341, a lower pressing plate 342 located below the upper pressing plate 341, a bolt 343 penetrating through the upper pressing plate 341 and the lower pressing plate 342, a nut 344 screwed at the bottom of the bolt 343, and a spring 345 arranged between the nut of the bolt 343 and the top surface of the upper pressing plate 341, a channel is formed between the upper pressing plate 341 and the lower pressing plate 342 for the composite belt to pass through, the channel is used to guide the running direction of the composite belt, and ensures that the composite belt passes horizontally through the upper surface polishing device 3 or the lower surface polishing device 4, so as to ensure the surface polishing effect of the composite belt, and the height of the channel can be adjusted by screwing the nut 344 to adapt to the composite belt of different thicknesses. Preferably, the material belt clamping assembly 34 further includes a connecting plate 346, the connecting plate 346 is vertically installed on the front surface of the first mounting seat 37, the upper pressing plate 341 is horizontally installed at the bottom of the connecting plate 346, and the connecting plate 346 is used to connect the first mounting seat 37 and the upper pressing plate 341; more preferably, a rib plate 347 is arranged between the upper pressing plate 341 and the connecting plate 346, which is used to strengthen the connection strength between the connecting plate 346 and the upper pressing plate 341, so as to improve the stability of the material belt clamping assembly 34 and prolong the service life of the material belt clamping assembly 34. The nut 344 can be selected as a monkey nut, which is convenient for the operator to screw the nut 344.

[0048] Preferably, referring to Figure 2 and Figure 4 , the composite belt inlet end and the composite belt outlet end of the upper surface polishing device 3 are provided with a first guide assembly 35 for guiding the composite belt to enter and output the upper surface polishing device 3, the first guide assembly 35 includes a first guide roller 351 and a first air cylinder 352 for adjusting the position height of the first guide roller 351, the output end of the first air cylinder 352 is rotationally connected with the first guide roller 351, the top surface of the composite belt abuts against the bottom of the first guide roller 351, the first guide roller 351 cooperates with the lower pressing roller 31 to clamp the upper and lower surfaces of the composite belt, thereby playing a guiding role of the composite belt, and the position height of the first guide roller 351 can be adjusted by the first air cylinder 352 to adapt to the composite belt of different thicknesses; referring to Figure 4 , the first guide assembly 35 further includes a mounting cover 353 and a cam follower 354, the mounting cover 353 is installed on the front surface of the first mounting seat 37, the first air cylinder 352 is installed on the mounting cover 353, the output end of the first air cylinder 352 is connected with the first guide roller 351, and the side of the mounting cover 353 away from the first brush wheel 32 is provided with two cam followers 354, the cam followers 354 are in contact with the side surface of the composite belt to guide the composite belt and limit the forward and backward movement of the composite belt.

[0049] Similarly, referring to Figure 3The second guide assembly 44 is provided with a second guide roller 441 and a second cylinder 442 for adjusting the height of the second guide roller 441, the output end of the second cylinder 442 is rotationally connected with the second guide roller 441, the bottom surface of the composite strip abuts against the top of the second guide roller 441, the second guide roller 441 cooperates with the upper pressure roller 41 to clamp the upper and lower surfaces of the composite strip, thereby playing a guiding role, and the height of the second guide roller 441 can be adjusted by the second cylinder 442 to adapt to composite strips of different thicknesses. The second guide assembly 44 further comprises a mounting cover and a cam follower, which have the same structure and working principle as the mounting cover 353 and the cam follower 354 of the first guide assembly 35.

[0050] Preferably, referring to Figure 1 and Figure 4 The composite strip inlet end and the composite strip outlet end of the upper surface polishing device 3 are each provided with an encoder 5, which can be installed on the mounting cover 353 and is used for measuring the moving speed of the composite strip, and by simultaneously providing the encoders 5 at the composite strip inlet end and the composite strip outlet end, it is beneficial to determine whether the speeds of the composite strips entering and exiting the upper surface polishing device 3 are consistent.

[0051] Similarly, the composite strip inlet end and the composite strip outlet end of the lower surface polishing device 4 are each provided with an encoder 5, which is beneficial to determine whether the speeds of the composite strips entering and exiting the lower surface polishing device 4 are consistent.

[0052] Preferably, referring to Figure 2 The lower pressure roller 31 is provided with three first brush wheels 32 in sequence along the running direction of the composite strip, the three first brush wheels 32 are respectively a scouring pad brush wheel, a nylon brush wheel and a wool felt brush wheel, which are respectively used for rough grinding, fine grinding and polishing, so that the surface contaminants of the composite strip passing through the three first brush wheels 32 are removed, and the surface roughness can reach Ra1.6; preferably, the strip clamping assembly 34 is arranged between adjacent two first brush wheels 32, and the strip clamping assembly 34 in the upper surface polishing device 3 is arranged in two, which ensures that the composite strip passes stably, and further makes the surface polishing more uniform.

[0053] Similarly, referring to Figure 3The upper pressing roller 41 is arranged in sequence along the running direction of the composite strip, three second brush wheels 42 are arranged in sequence along the running direction of the composite strip, the three second brush wheels 42 are in sequence a scouring pad brush wheel, a nylon brush wheel and a wool felt brush wheel, and are respectively used for rough grinding, fine grinding and polishing, so that the surface contaminants of the composite strip passing through the three second brush wheels 42 are removed, and the surface roughness can reach Ra1.6; preferably, the strip clamping assembly 34 is arranged between adjacent two second brush wheels 42, and the strip clamping assembly 34 in the lower surface polishing device 4 is arranged in total two, so as to ensure that the composite strip passes stably, and then the surface polishing is more uniform.

[0054] Preferably, referring to Figure 2 The upper surface polishing device 3 further comprises a first protective cover 36, the protective cover is arranged above the first brush wheel 32 and covers the lower pressing roller 31 and the first brush wheel 32, and the first protective cover 36 is used for preventing the fine powder generated by polishing from being shot to the surrounding;

[0055] Similarly, referring to Figure 3 The lower surface polishing device 4 further comprises a second protective cover 45, the protective cover is arranged above the upper pressing roller 41 and covers the upper pressing roller 41 and the second brush wheel 42, and the second protective cover 45 is used for preventing the fine powder generated by polishing from being shot to the surrounding.

[0056] Preferably, referring to Figure 1 Further comprising a cleaning device 6, the cleaning device 6 comprises a water tank (not shown in the figure) and a plurality of water pipes 61, the water inlet ends of the plurality of water pipes 61 are communicated with the water tank through a communication pipe, the water outlet ends of the water pipes 61 are directed to the composite strip, the composite strip is washed by the water pipes 61, so as to avoid that the waste powder and dust diffuse in the air, and avoid that the dust affects the staff and the environment. The water pipes 61 can be selected as universal curved pipes, the universal curved pipes can be adjusted in length, angle and caliber, so as to facilitate the adjustment of the water pipes 61; the water tank is a circulating water tank, the water sprayed from the water pipes 61 is collected, and the water is repeatedly used for cleaning the brush wheels, so as to be beneficial to reducing the consumption of water resources.

[0057] Preferably, further comprising a hot air device 7 arranged at the output end of the equipment, the hot air device 7 comprises at least two hot air knives 71 and a hot air fan 72 arranged in sequence, the air outlet of the hot air knife 71 is directed to the composite strip, and the air outlet of the hot air fan 72 is communicated with the air inlet of the hot air knife 71. The hot air fan 72 is started to deliver hot air to the hot air knife 71, the composite strip passes between the upper and lower hot air knives 71, the whole surface of the polished composite strip is dried, so as to avoid that the copper surface is oxidized due to water stains, and finally the smooth composite strip is delivered. The air outlet of the hot air fan 72 and the air inlet of the hot air knife 71 can be communicated through a hose, so as to deliver the hot air to the hot air knife 71.

[0058] Preferably, a hydrogen detector 8 is arranged above the upper surface polishing device 3 or above the lower surface polishing device 4, and the hydrogen detector 8 is used to detect the hydrogen content in the environment. During the surface polishing process, due to friction and high temperature, the reaction of aluminum with moisture or other chemicals in the air may be promoted, thereby generating hydrogen. The hydrogen detector 8 is used to monitor the hydrogen content generated during the polishing process in real time, and an alarm is given when the hydrogen content exceeds a limited value, thereby preventing the risk of explosion caused by excessive hydrogen concentration and ensuring the safety during the production process.

[0059] The surface polishing device comprises a cabinet 1 and a rack 2, the rack 2 is installed on the top of the cabinet 1, the upper surface polishing device 3, the lower surface polishing device 4, the encoder 5 and the hot air knife 71 are all installed in the rack 2, the circulating water tank is installed in the cabinet 1, and the hydrogen detector 8 is installed on the top of the rack 2.

[0060] It should be noted that the device is not only suitable for polishing of copper-aluminum composite strips, but also suitable for polishing of other composite strips. In addition, in actual application, polishing of both surfaces of the strip is not always required, and therefore, the upper surface polishing device or the lower surface polishing device can be selectively arranged according to the polishing requirement.

[0061] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A surface polishing device for composite strips, characterized in that, It includes an upper surface grinding device and / or a lower surface grinding device, which are used to grind the upper surface and / or lower surface of the composite strip, respectively. The upper surface polishing device includes a lower pressure roller, a first brush wheel disposed above the lower pressure roller, and a first adjusting member connected to the first brush wheel. The upper and lower surfaces of the composite strip abut against the bottom of the first brush wheel and the top of the lower pressure roller, respectively. The first adjusting member is used to adjust the distance between the first brush wheel and the lower pressure roller. The lower surface polishing device includes an upper pressure roller, a second brush wheel disposed below the upper pressure roller, and a second adjusting member connected to the second brush wheel. The upper and lower surfaces of the composite strip abut against the bottom of the upper pressure roller and the top of the second brush wheel, respectively. The second adjusting member is used to adjust the distance between the second brush wheel and the upper pressure roller.

2. The surface polishing equipment for composite strips according to claim 1, characterized in that, The first adjusting component is a vertically arranged electric cylinder, and the output end of the electric cylinder is connected to the first brush wheel; And / or, the second adjusting member is a vertically arranged electric cylinder, the output end of which is connected to the second brush wheel.

3. The surface polishing equipment for composite strips according to claim 1, characterized in that, The upper surface grinding device also includes a strip clamping assembly disposed on one side of the lower pressure roller; And / or, the lower surface grinding device further includes a strip clamping assembly disposed on one side of the upper pressure roller; The material strip clamping assembly includes a fixedly installed upper pressure plate, a lower pressure plate located below the upper pressure plate, a bolt passing through the middle of the upper pressure plate and the lower pressure plate, a nut screwed to the bottom of the bolt, and a spring disposed between the nut of the bolt and the top surface of the upper pressure plate. A channel for the composite strip to pass through is formed between the upper pressure plate and the lower pressure plate, and the height of the channel can be adjusted by turning the nut.

4. The surface polishing equipment for composite strips according to claim 1, characterized in that, The composite strip inlet and outlet ends of the upper surface grinding device are both provided with a first guide assembly. The first guide assembly includes a first guide roller and a first cylinder for adjusting the position and height of the first guide roller. The output end of the first cylinder is rotatably connected to the first guide roller, and the top surface of the composite strip abuts against the bottom of the first guide roller. And / or, the composite strip inlet end and the composite strip outlet end of the lower surface grinding device are both provided with a second guide assembly. The second guide assembly includes a second guide roller and a second cylinder for adjusting the position and height of the second guide roller. The output end of the second cylinder is rotatably connected to the second guide roller, and the bottom surface of the composite strip abuts against the top of the second guide roller.

5. The surface polishing equipment for composite strips according to claim 1, characterized in that, The composite strip inlet and outlet ends of the upper surface grinding device are both equipped with encoders; And / or, encoders are provided at both the composite strip inlet end and the composite strip outlet end of the lower surface grinding device.

6. The surface polishing equipment for composite strips according to claim 1, characterized in that, Three pressure rollers are arranged sequentially along the traveling direction of the composite strip, and three first brush wheels are arranged sequentially along the traveling direction of the composite strip. The three first brush wheels are, in order, a scouring pad brush wheel, a nylon brush wheel, and a wool felt brush wheel. And / or, three upper pressure rollers are arranged sequentially along the traveling direction of the composite strip, and three second brush wheels are arranged sequentially along the traveling direction of the composite strip, wherein the three second brush wheels are, in order, a scouring pad brush wheel, a nylon brush wheel, and a wool felt brush wheel.

7. The surface polishing equipment for composite strips according to claim 1, characterized in that, The upper surface polishing device also includes a first protective cover, which is positioned above the first brush wheel and covers the lower pressure roller and the first brush wheel; And / or, the lower surface polishing device further includes a second protective cover, which is disposed above the upper pressure roller and covers the upper pressure roller and the second brush wheel.

8. The surface polishing equipment for composite strips according to claim 1, characterized in that, It also includes a cleaning device, which includes a water tank and multiple water pipes. The inlet ends of the multiple water pipes are connected to the water tank through a connecting pipe, and the outlet ends of the water pipes face the composite strip.

9. The surface polishing equipment for composite strips according to claim 1, characterized in that, It also includes a hot air device installed at the output end of the equipment. The hot air device includes at least two hot air knives and a hot air fan arranged vertically. The air outlet of the hot air knives faces the composite strip, and the air outlet of the hot air fan is connected to the air inlet of the hot air knives.

10. The surface polishing equipment for composite strips according to claim 1, characterized in that, It also includes a hydrogen detector positioned above the upper surface polishing device or the lower surface polishing device, the hydrogen detector being used to detect the hydrogen content in the environment.

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