A metal composite plate cold rolling device

Abstract

The metal composite plate cold rolling device relates to the related field of cold rolling and comprises a composite plate oil removing mechanism fixedly arranged on a base. The composite plate oil removing mechanism comprises a pair of first supporting plates fixedly arranged on the base. The composite plate oil removing mechanism can spray oil removing agent between the surfaces of the multiple metal plates, and the excess oil mixture can be scraped off by a scraper. Finally, the oil and the oil removing agent that are not removed by the scraper are wiped off by the oil absorbing cotton groups rotating at the rear side, and the surface of the metal plate is wiped, so that the surfaces of the metal plates remain dry. The oil absorbing cotton groups can also wipe off the impurities that may exist on the surfaces of the metal plates, so that the surfaces of the metal plates remain clean and dry, the success rate of the overall cold rolling is improved, and the cold rolling efficiency is effectively improved by cleaning and rolling simultaneously.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cold rolling, in particular to a metal composite plate cold rolling device. BACKGROUND

[0002] Cold rolling is to use hot-rolled steel coil as raw material, after pickling to remove oxide skin, cold rolling is carried out, and the finished product is hard coil. Due to the cold work hardening caused by continuous cold deformation, the strength and hardness of the hard coil increase, and the toughness and plasticity indexes decrease. The metal composite plate is two or more layers of metal plates rolled by cold rolling. The cold rolling of metal composite plate needs to clean the bonding surface between metal plates, otherwise the cold rolling of multi-layer metal plate will fail due to dirt and oil between the bonding surfaces. In the prior art, the steel coil is cleaned by pickling, and the overall cleaning efficiency is low. Acid pickling is mainly for the oxide layer on the surface of the steel coil, and the steel coil may not rust until the surface oil is wiped off. Therefore, for the steel coil without rust, pickling may not be very meaningful. In addition, the oil on the surface of the steel coil may absorb dust and other impurities during transportation, affecting the cold rolling effect of the subsequent composite plate. There are also patents related to metal composite plate cold rolling in the prior art, such as a metal composite plate cold rolling device with the application number CN202010591589.2, but the invention cannot solve the above problems. SUMMARY

[0003] The purpose of the present application is to provide a metal composite plate cold rolling device to solve the above problems.

[0004] The above technical purpose of the present application is realized by the following technical scheme: a metal composite plate cold rolling device, comprising a composite plate oil removal mechanism fixedly arranged on the base;

[0005] The composite plate oil removal mechanism comprises a pair of No. 1 support plates fixedly arranged on the base, a No. 1 connecting plate is fixedly arranged between the No. 1 support plates at equal intervals, a corresponding spray head is fixedly arranged on each No. 1 connecting plate at equal intervals, a scraper is also fixedly arranged on the No. 1 support plate, and a guide roller is rotatably arranged in the No. 1 support plate at equal intervals.

[0006] The composite board oil removal mechanism further comprises a first supporting leg fixedly arranged on the base, a pair of first gears rotatably arranged on the first supporting leg and meshing with each other, wherein one of the first gears is fixedly connected with a motor shaft of a first motor, the first motor is fixedly arranged on the first supporting leg, a first connecting shaft corresponding to each of the first gears is fixedly arranged on the first gear, a cleaning shaft is fixedly connected with the other end of the first connecting shaft, a first replacement driving module and a second replacement driving module are arranged on both ends of each of the cleaning shafts respectively, a cleaning strip is slidingly arranged on each of the cleaning shafts at equal intervals, the cleaning strip comprises a sliding block slidingly connected with the cleaning shaft, a rack is fixedly arranged on one side of each of the sliding blocks towards the cleaning shaft, an oil absorbing cotton strip is arranged on the other side of the sliding block, and the oil absorbing cotton strip can be detached from the sliding block.

[0007] Preferably, a replacement mechanism is further arranged on the base, the replacement mechanism comprises a second supporting leg fixedly arranged on the base, a pair of second motors fixedly arranged on the second supporting leg at equal intervals, a rotating plate fixedly connected with a motor shaft of each of the second motors, a chain wheel rotatably arranged on the rotating plate at equal intervals, a same chain wound outside the chain wheels in the same group, synchronous transmission between the chain wheels in the same group through the chain, a third motor fixedly arranged on the rotating plate, a motor shaft of the third motor fixedly connected with one of the chain wheels, a second connecting shaft fixedly arranged on one end of each of the chain wheels away from the rotating plate, a connecting column fixedly arranged on each of the second connecting shafts, the cleaning strip slidingly arranged on the connecting column at equal intervals on the connecting column, the replacement mechanism further comprises a first fixed plate fixedly connected with the base, a limiting rod fixedly arranged in the first fixed plate, a screw rotatably arranged in the first fixed plate, a fourth motor fixedly arranged on the first fixed plate, a motor shaft of the fourth motor fixedly connected with the screw, a sliding plate slidingly arranged on the limiting rod, the sliding plate in screw transmission with the screw, two push blocks arranged at equal intervals on the sliding plate, and a groove arranged at equal intervals on each of the push blocks.

[0008] Preferably, the first replacement driving module and the second replacement driving module are identical in structure, the first replacement driving module comprises a second fixed plate fixedly arranged on one side of the cleaning shaft, a fifth motor fixedly arranged on the second fixed plate, a motor shaft of the fifth motor fixedly connected with a first belt pulley, a second connecting plate fixedly arranged on the cleaning shaft at equal intervals on the same side, a shaft rotatably arranged in each of the second connecting plates, a second gear fixedly arranged on each of the shafts corresponding to the shaft, and each of the shafts connected through a universal joint, the second fixed plate not affecting rotation of the shaft, a second belt pulley fixedly arranged on one of the shafts, and a same first transmission belt wound outside the first belt pulley and the second belt pulley.

[0009] Preferably, a third supporting leg is arranged on the base, six motors are fixedly arranged on the third supporting leg at equal intervals, the motor shafts of the six motors are fixedly connected with corresponding rotating shafts, a steel roll a can be sleeved on the rotating shafts, and a limiting shaft is rotatably arranged on the third supporting leg at equal intervals.

[0010] Preferably, a fourth supporting leg is fixedly arranged on one end of the base at equal intervals, a pair of third gears are rotatably arranged on the fourth supporting leg at equal intervals, the third gears are meshed with each other, one of the third gears is fixedly provided with a third belt pulley, the third belt pulley is fixedly connected with the motor shaft of a seventh motor, the seventh motor is fixedly arranged on the fourth supporting leg, and the same second transmission belt is wound outside each pair of adjacent third belt pulleys, and the adjacent third belt pulleys are synchronously driven through the second transmission belt.

[0011] Preferably, a pair of rollers are rotatably arranged between the fourth supporting legs, the third gears are fixedly connected with corresponding rollers, second supporting plates are arranged on the base at equal intervals, third connecting plates are fixedly arranged on the fourth supporting legs, traction rollers are rotatably arranged on the third connecting plates at equal intervals, fourth gears are rotatably arranged on the third connecting plates, the fourth gears are fixedly connected with corresponding traction rollers, one of the fourth gears is fixedly connected with the motor shaft of an eighth motor, and the eighth motor is fixedly arranged on the third connecting plate.

[0012] Preferably, a collecting groove is arranged below the first connecting shaft, the collecting groove is fixedly connected with the first supporting leg and the base, the collecting groove is used for receiving the replaced cleaning strip, an oil removing agent storage area is fixedly arranged on one side of the first supporting plate, and the oil removing agent storage area is connected with an oil pump through a connecting pipe to transport the oil removing agent to the spray head.

[0013] Preferably, a control terminal is fixedly arranged on one side of the first supporting plate.

[0014] In summary, the present application has the following advantages: the composite plate oil removing mechanism can spray oil removing agent between the surfaces of the multiple metal plates, the excess oil mixture can be scraped off by the scraper, the oil removing agent and the oil that are not removed by the scraper can be wiped off by the rotating oil absorbing cotton roll group at the rear side, the surface of the metal plate can be wiped, the surfaces of the metal plates can be kept dry, the metal plate surfaces can be kept clean and dry by wiping off the possible impurities on the metal plate surfaces through the oil absorbing cotton roll, the success rate of the overall cold rolling is improved, and the cold rolling efficiency is effectively improved by cleaning and rolling at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0015] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a first external appearance diagram of an embodiment of the present invention;

[0017] Figure 2 This is a second external appearance diagram of an embodiment of the present invention;

[0018] Figure 3 This is a third external appearance diagram of an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the first structure according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the second structure according to an embodiment of the present invention;

[0021] Figure 6 This is an embodiment of the present invention. Figure 2 Enlarged view of point A in the middle;

[0022] Figure 7 This is an embodiment of the present invention. Figure 4 Enlarged view of point B in the middle;

[0023] Figure 8 This is an embodiment of the present invention. Figure 5 Enlarged view of point C in the middle;

[0024] Figure 9 This is an embodiment of the present invention. Figure 5 Enlarged view of point D;

[0025] In the figure: 11, base; 12, No. 3 support leg; 13, rotating shaft; 14, limiting shaft; 15, control terminal; 16, oil removing agent storage area; 17, No. 1 connecting plate; 18, spray head; 19, No. 1 support plate; 20, collection groove; 21, No. 1 gear; 22, No. 1 motor; 23, No. 4 support leg; 24, No. 3 gear; 25, No. 3 pulley; 26, No. 2 transmission belt; 27, roller; 28, No. 6 motor; 29, No. 1 support leg; 30, No. 2 support leg; 31, sliding plate; 32, push block; 33, No. 2 support plate; 34, guide roller; 35, scraper; 36, groove; 37, No. 1 fixed plate; 38, screw rod; 39, limiting rod; 40, No. 4 motor; 41, No. 2 motor; 42, rotating plate; 43, No. 3 motor; 44, sprocket; 45, chain; 46, connecting column; 47, rack; 48, oil absorbing cotton; 49, No. 2 connecting shaft; 50, sliding block; 51, No. 3 connecting plate; 52, No. 2 connecting plate; 53, No. 2 gear; 54, shaft; 55, No. 5 motor; 56, No. 2 fixed plate; 57, No. 1 pulley; 58, No. 2 pulley; 59, No. 1 transmission belt; 60, No. 1 connecting shaft; 61, traction roller; 62, No. 4 gear; 63, No. 8 motor; 64, cleaning shaft; 65, No. 7 motor; 72, replacement mechanism; 73, cleaning strip; 74, No. 1 replacement drive module; 75, No. 2 replacement drive module. DETAILED DESCRIPTION

[0026] In combination with the drawings Figures 1-9 The metal composite plate cold rolling device comprises a composite plate oil removing mechanism fixedly arranged on the base 11.

[0027] The composite plate oil removing mechanism comprises a pair of No. 1 support plates 19 fixedly arranged on the base 11, a No. 1 connecting plate 17 fixedly arranged between the No. 1 support plates 19 at equal intervals, a spray head 18 corresponding to the No. 1 connecting plate 17 fixedly arranged on each No. 1 connecting plate 17 at equal intervals, the spray head 18 being used for spraying oil removing agent, a scraper 35 fixedly arranged on the No. 1 support plate 19, the scraper 35 being used for scraping off excess oil and oil removing agent, and a guide roller 34 rotatably arranged in the No. 1 support plate 19 at equal intervals, the guide roller 34 being used for guiding the steel coil a.

[0028] The composite board oil removal mechanism further comprises a first supporting leg 29 fixedly arranged on the base 11, a pair of first gears 21 rotatably arranged on the first supporting leg 29 and meshing with each other, one of the first gears 21 is fixedly connected with the motor shaft of a first motor 22, the first motor 22 is fixedly arranged on the first supporting leg 29, a first connecting shaft 60 corresponding to each of the first gears 21 is fixedly arranged on each of the first gears 21, the other end of the first connecting shaft 60 is fixedly connected with a cleaning shaft 64 corresponding thereto, two ends of each of the cleaning shafts 64 are respectively provided with a first replacement driving module 74 and a second replacement driving module 75, a plurality of cleaning strips 73 are equidistantly arranged and slidably arranged on each of the cleaning shafts 64, the cleaning strip 73 comprises a sliding block 50 slidably connected with the cleaning shaft 64, a rack 47 is fixedly arranged on one side of each of the sliding blocks 50 towards the cleaning shaft 64, an oil absorbing cotton strip 48 is arranged on the other side of the sliding block 50, and the oil absorbing cotton strip 48 can be detached from the sliding block 50.

[0029] Beneficially, the base 11 is further provided with a replacement mechanism 72, the replacement mechanism 72 comprises a second supporting leg 30 fixedly arranged on the base 11, a pair of second motors 41 are equidistantly arranged and fixedly arranged on the second supporting leg 30, the motor shaft of the second motor 41 is fixedly connected with a rotating plate 42 corresponding thereto, a plurality of sprockets 44 are equidistantly arranged and rotatably arranged on the rotating plate 42, the same group of sprockets 44 are wound with the same chain 45, the same group of sprockets 44 are synchronously driven through the chain 45, a third motor 43 is fixedly arranged on the rotating plate 42, the motor shaft of the third motor 43 is fixedly connected with one of the sprockets 44, a second connecting shaft 49 is fixedly arranged on the end of each of the sprockets 44 away from the rotating plate 42, a connecting column 46 is fixedly arranged on each of the second connecting shafts 49, and the cleaning strips 73 are equidistantly arranged and slidably arranged on the connecting column 46. The cleaning strips 73 on the cleaning shafts 64 can be replaced, the replacement mechanism 72 further comprises a first fixed plate 37 fixedly connected with the base 11, a limiting rod 39 is fixedly arranged in the first fixed plate 37, a screw rod 38 is rotatably arranged in the first fixed plate 37, a fourth motor 40 is fixedly arranged on the first fixed plate 37, the motor shaft of the fourth motor 40 is fixedly connected with the screw rod 38, a sliding plate 31 is slidably arranged on the limiting rod 39, the sliding plate 31 is screw driven with the screw rod 38, two sections of push blocks 32 are equidistantly arranged on the sliding plate 31, grooves 36 are equidistantly arranged on each of the push blocks 32, and the grooves 36 are used for facilitating the push blocks 32 to push the cleaning strips 73 without affecting the rotating plate 42 and the chain 45.

[0030] Beneficially, the first replacement drive module 74 is consistent with the structure of the second replacement drive module 75, the first replacement drive module 74 includes a second fixed plate 56 fixedly arranged on one side of the cleaning shaft 64, the second fixed plate 56 is fixedly provided with a fifth motor 55, the motor shaft of the fifth motor 55 is fixedly connected with a first pulley 57, and the cleaning shaft 64 on this side is also fixedly arranged with a second connecting plate 52 at equal intervals, each second connecting plate 52 is rotatably provided with a corresponding shaft 54, each shaft 54 is fixedly provided with a corresponding second gear 53, the second gear 53 can be engaged with the rack 47, each shaft 54 is connected through a universal joint, the second fixed plate 56 does not affect the rotation of the shaft 54, one of the shafts 54 is fixedly provided with a second pulley 58, and the same first transmission belt 59 is wound outside the first pulley 57 and the second pulley 58, and the first pulley 57 and the second pulley 58 are synchronously transmitted through the first transmission belt 59.

[0031] Beneficially, the base 11 is also provided with a third supporting leg 12, a sixth motor 28 is fixedly arranged on the third supporting leg 12 at equal intervals, the motor shaft of the sixth motor 28 is fixedly connected with a corresponding rotating shaft 13, the rotating shaft 13 can be sleeved with a steel coil a, and a limiting shaft 14 is rotatably arranged on the third supporting leg 12 at equal intervals.

[0032] Beneficially, one end of the base 11 is also fixedly arranged with a fourth supporting leg 23 at equal intervals, a pair of third gears 24 are rotatably arranged on the fourth supporting leg 23 at equal intervals, each pair of third gears 24 are engaged with each other, one of the third gears 24 is fixedly provided with a third pulley 25, the third pulley 25 is fixedly connected with the motor shaft of a seventh motor 65, the seventh motor 65 is fixedly arranged on the fourth supporting leg 23, and each pair of adjacent third pulleys 25 are wound with the same second transmission belt 26 outside, and the adjacent third pulleys 25 are synchronously transmitted through the second transmission belt 26.

[0033] Beneficially, a pair of rollers 27 is rotatably arranged between the fourth supporting legs 23, the third gear 24 is fixedly connected with the corresponding roller 27, the roller 27 is used for rolling the steel coil a, a second supporting plate 33 is also equidistantly arranged on the base 11, the second supporting plate 33 is used for supporting the rolled steel coil a, a third connecting plate 51 is also fixedly arranged on the fourth supporting leg 23, a traction roller 61 is equidistantly arranged and rotatably arranged on the third connecting plate 51, the traction roller 61 is used for guiding the steel coil a, a fourth gear 62 is rotatably arranged on the third connecting plate 51, the fourth gear 62 is fixedly connected with the corresponding traction roller 61, one of the fourth gears 62 is fixedly connected with the motor shaft of an eighth motor 63, and the eighth motor 63 is fixedly arranged on the third connecting plate 51.

[0034] Beneficially, a collecting groove 20 is arranged below the first connecting shaft 60, the collecting groove 20 is fixedly connected with the first supporting leg 29 and the base 11, and the collecting groove 20 is used for receiving the removed cleaning strip 73, an oil removal agent storage area 16 is fixedly arranged on one side of the first supporting plate 19, and the oil removal agent storage area 16 is connected with an oil pump through a connecting pipe to transport the oil removal agent to the spray head 18.

[0035] Beneficially, a control terminal 15 is also fixedly arranged on one side of the first supporting plate 19, and the control terminal 15 is used for controlling all the motors.

[0036] Method for using the application:

[0037] In the initial state, the rotating shaft 13 is not sleeved with the steel coil a, the cleaning strip 73 on the connecting column 46 and the cleaning shaft 64 is not contaminated, the slide plate 31 is attached to one side of the fourth motor 40 on the first fixed plate 37, the chain 45 is in a straightened state, the angles of each connecting column 46 and the cleaning shaft 64 are the same, the connecting column 46 and the cleaning shaft 64 and the push block 32 share the same center line, the second gear 53 on the first replacement driving module 74 is not engaged with the rack 47, the second gear 53 on the second replacement driving module 75 is engaged with the rack 47 on the cleaning shaft 64, and the oil removal agent storage area 16 is filled with oil removal agent.

[0038] When the user needs to use this invention, the user needs to use other tools to put the steel coil a that needs to be cold rolled onto the rotating shaft 13. After the steel coil a is put on, the user needs to pull the steel coil a. The steel coil a passes around the guide rollers 34 and the cleaning shaft 64 on both sides. Finally, one end of the steel coil a is clamped between the traction rollers 61. Then the invention can be started through the control terminal 15. After the invention is started, the sixth motor 28, the first motor 22, the eighth motor 63, and the seventh motor 65 will be started under the action of the control terminal 15.

[0039] After the No. 8 motor 63 starts, its motor shaft will drive the No. 4 gear 62 to rotate, thereby driving the traction roller 61 to rotate, and transmitting the two stacked steel coils a between the rolling rollers 27. Due to the No. 2 support plate 33, the steel coils a will not fall, but will be transmitted along the No. 2 support plate 33 to the rolling rollers 27 for rolling. After the No. 7 motor 65 starts, its motor shaft will drive the No. 3 pulley 25 to rotate, thereby driving each of the No. 3 gears 24 to rotate through the No. 2 transmission belt 26, thereby driving each of the rolling rollers 27 to rotate, thus rolling the stacked steel coils a. After the No. 6 motor 28 starts, its motor shaft will drive the rotating shaft 13 to rotate, thereby driving the steel coils a to rotate and release a certain length to facilitate the transmission of the traction roller 61.

[0040] After the first motor 22 is started, its motor shaft will drive the first gear 21 to rotate. The rotation of the first gear 21 will then drive the first connecting shaft 60 to rotate, thereby driving the cleaning shaft 64 to rotate. As the cleaning shaft 64 rotates, the cleaning strip 73 mounted above it will also rotate, wiping away the oil, degreasing agent, and fine dust and other debris from the surface of the steel coil a, thus keeping the bonding surface of the steel coil a clean. Simultaneously with the rotation of the cleaning shaft 64, the oil pump connected to the degreasing agent storage area 16 will also be started under the action of the control terminal 15, thereby pumping the oil pump from the degreasing agent storage area 16... The degreasing agent is transported to the nozzle 18 through the connecting pipe, and is sprayed out through the nozzle 18 to clean the oil stains on the steel coil a. As the steel coil a moves, it passes the scraper 35, where the scraper 35 scrapes away excess oil and degreasing agent. Then, the steel coil a passes the cleaning shaft 64, where the oil-absorbing cotton strips 48 on the cleaning shaft 64 absorb any oil and degreasing agent that was not completely scraped away by the scraper 35. At the same time, dust and other debris on the steel coil a will also be wiped away by the oil-absorbing cotton strips 48, thus ensuring overall cleanliness and improving the success rate of subsequent cold rolling by the roll 27.

[0041] And in the first motor 22 start, the third motor 43 will also be under the action of the control terminal 15 start, thereby through the chain wheel 44, the chain 45 drive each the connecting column 46 and the cleaning shaft 64 synchronous rotation, facilitate subsequent replacement use.

[0042] And in the cleaning shaft 64 on the cleaning strip 73 use a certain time, the cleaning ability of the oil absorbing cotton 48 will be weak, at this time, the fourth motor 40 will be under the action of the control terminal 15 start, the fourth motor 40 start after its motor shaft will drive the screw rod 38 rotation, thereby the push block 32 to the other side, so that the push block 32 push and the cleaning shaft 64 alignment of the connecting column 46 on the cleaning strip 73, so that the connecting column 46 on the cleaning strip 73 to the cleaning shaft 64 direction push, and at the same time, the first replacement drive module 74, the second replacement drive module 75 in the fifth motor 55 will also be under the action of the control terminal 15 start, the fifth motor 55 start after its motor shaft will drive the first pulley 57 rotation, thereby through the first transmission belt 59 drive the second pulley 58 rotation, thereby drive each the shaft 54 rotation, thereby drive the second gear 53 rotation, and with the rotation of the second gear 53, will be under the action of meshing to push the cleaning strip 73 on the connecting column 46, to the cleaning shaft 64 slide, and the cleaning strip 73 in the cleaning shaft 64 will also be under the action of the second replacement drive module 75, to the direction of the collection groove 20 slide, thereby gradually away from the cleaning shaft 64, and the clean cleaning strip 73 will be from the connecting column 46 into the cleaning shaft 64, thereby in the case of not stop working, also maintain the normal wiping cleaning function of the cleaning shaft 64, the cleaning strip 73 will be pushed out of the cleaning shaft 64 range will fall into the collection groove 20, waiting for processing, replace the oil absorbing cotton 48 can continue to use, and in the cleaning strip 73 complete replacement, the fourth motor 40 will be under the action of the control terminal 15 again start, thereby drive the slide plate 31 reset, facilitate next time use, and the second motor 41 will also be under the action of the control terminal 15 start, the next group of the connecting column 46 alignment of the cleaning shaft 64, such reciprocating, guarantee the cleaning ability of the steel coil a, use after, on the connecting column 46 turn new cleaning strip 73 can be.

[0043] The above examples are only for illustrating the technical concept and characteristics of the present application, and its purpose is to enable the person skilled in the art to understand the content of the present application and implement it, and it cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A metal composite plate cold rolling device, comprising a composite plate oil removing mechanism fixedly arranged on a base (11), characterized in that: the composite plate oil removing mechanism comprises a pair of first support plates (19) fixedly arranged on the base (11), a first connecting plate (17) is fixedly arranged between the first support plates (19) at equal intervals, a corresponding spray head (18) is fixedly arranged on each first connecting plate (17) at equal intervals, a scraper (35) is further fixedly arranged on the first support plate (19), and a guide roller (34) is rotatably arranged in the first support plate (19) at equal intervals; the composite plate oil removing mechanism further comprises a first supporting leg (29) fixedly arranged on the base (11), a pair of first gears (21) are rotatably arranged on the first supporting leg (29) and mesh with each other, one of the first gears (21) is fixedly connected with a motor shaft of a first motor (22), the first motor (22) is fixedly arranged on the first supporting leg (29), a corresponding first connecting shaft (60) is fixedly arranged on each first gear (21), the other end of the first connecting shaft (60) is fixedly connected with a corresponding cleaning shaft (64), a first replacement driving module (74) and a second replacement driving module (75) are arranged at both ends of each cleaning shaft (64), respectively, a cleaning strip (73) is slidably arranged on each cleaning shaft (64) at equal intervals, the cleaning strip (73) comprises a sliding block (50) slidably connected with the cleaning shaft (64), a rack (47) is fixedly arranged on one side of each sliding block (50) facing the cleaning shaft (64), an oil absorbing cotton strip (48) is arranged on the other side of the sliding block (50), and the oil absorbing cotton strip (48) can be detached from the sliding block (50). The base (11) is further provided with a replacement mechanism (72), the replacement mechanism (72) comprises a second supporting leg (30) fixedly arranged on the base (11), a pair of second motors (41) are fixedly arranged on the second supporting leg (30) at equal intervals, the motor shaft of the second motor (41) is fixedly connected with the corresponding rotating plate (42), a chain wheel (44) is rotatably arranged on the rotating plate (42) at equal intervals, the same group of chain wheels (44) are wound with the same chain (45) outside, the same group of chain wheels (44) are synchronously transmitted through the chain (45), a third motor (43) is fixedly arranged on the rotating plate (42), the motor shaft of the third motor (43) is fixedly connected with one of the chain wheels (44), a second connecting shaft (49) is fixedly arranged at one end of each chain wheel (44) away from the rotating plate (42), a connecting column (46) is fixedly arranged on each second connecting shaft (49), the cleaning strip (73) is slidably arranged on the connecting column (46) at equal intervals, the replacement mechanism (72) further comprises a first fixed plate (37) fixedly connected with the base (11), a limiting rod (39) is fixedly arranged in the first fixed plate (37), a screw rod (38) is rotatably arranged in the first fixed plate (37), a fourth motor (40) is fixedly arranged on the first fixed plate (37), the motor shaft of the fourth motor (40) is fixedly connected with the screw rod (38), a sliding plate (31) is slidably arranged on the limiting rod (39), the sliding plate (31) is screw-transmitted with the screw rod (38), two sections of push blocks (32) are arranged on the sliding plate (31) at equal intervals, and a groove (36) is arranged on each push block (32) at equal intervals.

2. The metal composite plate cold rolling device according to claim 1, characterized in that: The first replacement driving module (74) and the second replacement driving module (75) are identical in structure, the first replacement driving module (74) comprises a second fixed plate (56) fixedly arranged on one side of the cleaning shaft (64), a fifth motor (55) is fixedly arranged on the second fixed plate (56), the motor shaft of the fifth motor (55) is fixedly connected with a first belt pulley (57), a second connecting plate (52) is fixedly arranged on the cleaning shaft (64) on the same side at equal intervals, a shaft (54) corresponding to each second connecting plate (52) is rotatably arranged in each second connecting plate (52), a second gear (53) corresponding to each shaft (54) is fixedly arranged on each shaft (54), each shaft (54) is connected through a universal joint, the second fixed plate (56) does not affect the rotation of the shaft (54), a second belt pulley (58) is fixedly arranged on one of the shafts (54), and a same first transmission belt (59) is wound outside the first belt pulley (57) and the second belt pulley (58), the first belt pulley (57) and the second belt pulley (58) are synchronously transmitted through the first transmission belt (59).

3. The metal composite plate cold rolling device according to claim 1, characterized in that: The base (11) is also provided with a third supporting leg (12), a sixth motor (28) is fixedly arranged on the third supporting leg (12) at equal intervals, a rotating shaft (13) of the sixth motor (28) is fixedly connected with the corresponding rotating shaft (13), a steel roll a can be sleeved on the rotating shaft (13), and a limiting shaft (14) is rotatably arranged on the third supporting leg (12) at equal intervals.

4. The metal composite plate cold rolling device according to claim 3, characterized in that: One end of the base (11) is also provided with a fourth supporting leg (23) arranged at equal intervals, a pair of third gears (24) are rotatably arranged on the fourth supporting leg (23) at equal intervals, each pair of third gears (24) are meshed with each other, one of the third gears (24) is fixedly provided with a third belt pulley (25), the third belt pulley (25) is fixedly connected with a motor shaft of a seventh motor (65), the seventh motor (65) is fixedly arranged on the fourth supporting leg (23), and each pair of adjacent third belt pulleys (25) are wound with the same second transmission belt (26).

5. The metal composite sheet cold rolling apparatus according to claim 4, wherein: A pair of rollers (27) are rotatably arranged between the fourth supporting legs (23), the third gears (24) are fixedly connected with the corresponding rollers (27), the base (11) is also provided with a second supporting plate (33) arranged at equal intervals, the fourth supporting leg (23) is also fixedly provided with a third connecting plate (51), a traction roller (61) is rotatably arranged on the third connecting plate (51) at equal intervals, a fourth gear (62) is rotatably arranged on the third connecting plate (51), the fourth gear (62) is fixedly connected with the corresponding traction roller (61), and one of the fourth gears (62) is fixedly connected with a motor shaft of an eighth motor (63).

6. The metal composite sheet cold rolling device according to claim 1, characterized in that: A collecting groove (20) is arranged below the first connecting shaft (60), the collecting groove (20) is fixedly connected with the first supporting leg (29) and the base (11), the collecting groove (20) is used for receiving the replaced cleaning strip (73), and an oil removing agent storage area (16) is fixedly arranged on one side of the first supporting plate (19).

7. The metal composite sheet cold rolling apparatus according to claim 6, wherein: A control terminal (15) is also fixedly arranged on one side of the first supporting plate (19).

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