CN118403906A - A metal material composite plate cold rolling device - Google Patents

Abstract

The invention relates to the technical field of cold rolling of metal composite plates, in particular to a cold rolling device of a metal material composite plate, which comprises a main body, a metal composite plate body, a correction component and a cold rolling component, wherein a limit groove is formed in the main body, the correction component is arranged on the main body, the correction component can correct the metal composite plate body, the metal composite plate body passes through the correction component and also passes through the cold rolling component, the correction component comprises a correction wheel and a centering transmission component, the centering transmission component is used for synchronously moving the correction wheel, the correction component also comprises a supporting plate and a first bearing seat, the first bearing seat is fixed on the supporting plate through bolts, and the correction wheel is movably arranged in the first bearing seat.

Description

A metal material composite plate cold rolling device

Technical Field

The invention relates to the technical field of cold rolling of metal composite plates, in particular to a cold rolling device for metal composite plates.

Background technique

With the rapid development of modern industry, metal composite plates, as a new type of high-performance material, have been widely used in aerospace, automobile, construction, electronics and many other fields due to their unique performance combination and excellent physical and chemical properties. In order to meet the growing market demand for high-performance metal composite plates, the traditional composite plate production method has been difficult to meet the high-quality and high-efficiency production requirements. Therefore, the development of a new type of metal composite plate cold rolling device is of great significance to improve the production efficiency and product quality of composite plates. The traditional production method of metal composite plates usually adopts hot rolling or explosive composite method. Although the hot rolling composite method can achieve rapid production of composite plates, due to its high processing temperature, high energy consumption, long production cycle and other disadvantages, the product performance is unstable and it is difficult to meet the high-precision and high-quality production requirements. The explosive composite method has problems such as complex operation, high noise pollution, low production efficiency, and strict restrictions on the types and sizes of composite materials, making it difficult to achieve large-scale production.

Chinese patent CN117983658A discloses an aluminum foil raw material plate shape cold rolling device, which relates to the field of cold rolling technology, including a base, side walls, a roller group system, a reduction motor and a drive cylinder, wherein the roller group system includes a main support roller, a primary cold rolling roller group and a secondary cold rolling roller group, a mounting hole is arranged on the side wall, an inner support seat and an outer integrated seat are arranged in the mounting hole, the inner support seat is used to support the main support roller, the outer integrated seat includes an outer frame, a panel, an angle seat, an intermediate seat and a slide, the drive cylinder drives the slide to translate and synchronously drives the working roller and the auxiliary support roller to make a planar motion, a support ring is arranged at the center of the panel, an outer shaft sleeve cooperating with the main support roller is arranged on the support ring, a plate shape detector across the two side walls is arranged at the center of the support ring, and the plate shape detector is used to detect the plate thickness and side edge quality of the aluminum foil raw material plate.

In the above structure, two sets of rolling rollers and a set of plate shape detector are integrated by using an external integrated seat, which can not only perform timely plate shape detection on the aluminum foil raw plate after the first cold rolling, but also provide data reference for the second cold rolling, so as to facilitate the adjustment of the working rollers to reduce the cold rolling error. The length of the aluminum foil raw plate with problems is shortened by two consecutive rollings, which is beneficial to control production costs. However, metal composite plates generally use roller conveyors to transport the metal plates to the cold rolling mill. During this process, the metal composite plates may be offset during transportation, resulting in quality problems of the metal composite plates during cold rolling.

Summary of the invention

The present invention provides a metal composite plate cold rolling device, which sets a correcting wheel on the side of the metal composite plate, and synchronously moves and clamps the correcting wheel to the side of the metal composite plate, thereby limiting the metal composite plate, so that the metal composite plate will not deviate when being transported, thereby improving the cold rolling quality of the metal composite plate.

In order to solve the problems of the prior art, the present invention provides a metal material composite plate cold rolling device, comprising a main body, a metal composite plate body, a correction component and a cold rolling component, the main body is provided with a limiting groove, the correction component is arranged on the main body, the correction component can correct the metal composite plate body, the metal composite plate body passes through the correction component and also passes through the cold rolling component, the correction component comprises a correction wheel and a centering transmission component, the centering transmission component is used to make the correction wheel move synchronously, and the correction component also comprises a support plate and a first bearing seat, the first bearing seat is fixed to the support plate by bolts, and the correction wheel is movably arranged in the first bearing seat.

Preferably, the deviation-correcting assembly further comprises a mounting plate, and a slide rail is fixed on the mounting plate symmetrically with respect to a center line of the mounting plate by bolts, and a plurality of sliding blocks are arranged on the slide rail for transverse sliding.

Preferably, the bottom of the support plate and the sliding block are fixed to each other, and the support plate is symmetrical with respect to the center position of the mounting plate.

Preferably, the first bearing seat and the deflection correcting wheel are evenly distributed on the support plate, and the first bearing seat and the deflection correcting wheel are transversely arranged on the support plate.

Preferably, the centering transmission assembly includes a transmission plate and a connecting rod. The center position of the transmission plate is movably set to the mounting plate through an axis, and the two ends of the transmission plate are respectively connected to connecting rods. When the transmission plate rotates, the connecting rod is driven to rotate synchronously. One end of the connecting rod is connected to the bottom of the support plate through an axis. When the connecting rod rotates, the two support plates can be moved closer to or away from each other.

Preferably, the centering transmission assembly also includes a worm wheel, a worm and a second bearing seat, the center axis of the worm wheel passes through the mounting plate and is fixedly connected to the axis of the transmission plate, the worm wheel and the worm are meshed with each other, the second bearing seat is fixed to the bottom of the mounting plate, the worm is rotatably arranged on the second bearing seat, and is used to rotate the worm wheel when the worm rotates; the deviation correction assembly also includes a first rotating drive member, the first rotating drive member is fixed to the bottom of the mounting plate, and the output end of the first rotating drive member is fixedly connected to the worm and is used to drive the worm to rotate.

Preferably, the cold rolling assembly is arranged on the main body, the cold rolling assembly is used to roll the metal composite plate body, and several groups of cold rolling assemblies are arranged on the metal composite plate body.

Preferably, a detection component for detecting the thickness of the metal composite plate body is provided between the two cold rolling components on the main body, and the detection component is used to detect the thickness of the metal composite plate body after rolling in real time and transmit the data to the controller.

Preferably, an oil removal component is also provided on the main body, and the oil removal component is used to clean the oil stains on the metal composite plate body, and the oil removal components are distributed on the upper and lower sides of the main body.

Preferably, the degreasing assembly comprises a scraper for scraping off oil stains on the upper and lower surfaces of the metal composite plate body and a nozzle for spraying a degreasing agent.

Compared with the prior art, the beneficial effects of the present invention are: the cold rolling device for metal composite plates has a reasonable structure and has the following advantages:

A support plate is provided, a plurality of first bearing seats are fixed on the support plate, and a correcting wheel is movably provided on the first bearing seat. When the metal composite plate passes between the correcting wheels on both sides, the correcting wheels move synchronously under the action of the centering transmission assembly, thereby limiting the metal composite plate at the center of the cold rolling mill. In this way, the metal composite plate will not deviate when being conveyed, thereby improving the cold rolling quality of the metal composite plate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a first three-dimensional structural schematic diagram of a metal composite plate cold rolling device.

FIG. 2 is a second three-dimensional structural schematic diagram of a metal composite plate cold rolling device.

FIG. 3 is a schematic diagram of the front view structure of a deviation correction component of a metal material composite plate cold rolling device.

FIG. 4 is a schematic diagram of the rear view structure of a deviation correction component of a metal composite plate cold rolling device.

FIG. 5 is a schematic diagram of the three-dimensional structure of a cold rolling assembly and a detection assembly of a metal material composite plate cold rolling device.

FIG. 6 is a schematic diagram of the three-dimensional structure of an oil removal component of a metal composite plate cold rolling device.

FIG. 7 is a schematic diagram of the top view of a cold rolling device for a metal composite plate.

FIG. 8 is a schematic diagram of the back structure of a metal composite plate cold rolling device.

FIG. 9 is a schematic diagram of the right side structure of a metal composite plate cold rolling device.

FIG. 10 is a schematic diagram of the left side structure of a metal composite plate cold rolling device.

The numbers in the figure are: 1, main body; 11, metal composite plate body; 12, correction component; 121, mounting plate; 1211, slide rail; 1212, slider; 1213, support plate; 1214, first bearing seat; 1215, correction wheel; 122, centering transmission component; 1221, transmission plate; 1222, connecting rod; 1223, worm gear; 1224, worm; 1225, first rotating drive member; 1226, second bearing seat; 13, cold rolling component; 131, slide; 132, cold rolling roller; 1 33. Adjustment rod; 134. Guide rail; 135. Moving plate; 136. Telescopic drive member; 137. Second rotary drive member; 14. Detection assembly; 141. Third rotary drive member; 142. Lead screw; 143. Laser transmitter; 144. Laser sensor; 145. Limit rail; 15. Oil removal assembly; 151. Fixed table; 152. Fourth rotary drive member; 1521. Driving wheel; 153. Scraper; 1531. Driven wheel; 154. Main flow pipe; 1541. Diverter pipe; 1542. Nozzle.

Detailed ways

In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

Referring to Figures 1 to 10, the present invention provides: a metal composite plate cold rolling device, comprising a main body 1, a metal composite plate body 11, a correction component 12 and a cold rolling component 13. The cold rolling component 13 is a key part for processing the metal composite plate, which exerts pressure on the metal composite plate to make it reach the desired thickness and shape. A limiting groove is provided on the main body 1, and the correction component 12 is arranged on the main body 1. The correction component 12 can correct the metal composite plate body 11. The correction component 12 is responsible for ensuring the correct position of the metal composite plate body 11 during the cold rolling process to prevent deviation. The metal composite plate body 11 passes through the correction component 12 and also passes through the cold rolling component 13. The correction component 12 includes a correction wheel 1215 and a centering transmission component 122. The correction wheel 1215 is a key part in the correction component 12. Through its rotation and position adjustment, the metal composite plate can be corrected. The centering transmission assembly 122 is used to make the deflection correction wheel 1215 move synchronously, and the centering transmission assembly 122 is used to synchronously control the movement of the deflection correction wheel 1215, ensuring that all the deflection correction wheels 1215 can move synchronously during the deflection correction process, thereby maintaining the stable transmission of the metal composite plate. The deflection correction assembly 12 also includes a support plate 1213 and a first bearing seat 1214, the first bearing seat 1214 is fixed to the support plate 1213 by bolts, and the deflection correction wheel 1215 is movably arranged in the first bearing seat 1214.

In this embodiment, a support plate 1213 is provided, a plurality of first bearing seats 1214 are fixed on the support plate 1213, and a correcting wheel 1215 is movably provided on the first bearing seat 1214. When the metal composite plate passes between the correcting wheels 1215 on both sides, the correcting wheels 1215 move synchronously under the action of the centering transmission assembly 122, thereby limiting the metal composite plate at the center of the cold rolling mill. In this way, the metal composite plate will not deviate when being conveyed, thereby improving the cold rolling quality of the metal composite plate.

The deflection correction assembly 12 also includes a mounting plate 121, and a slide rail 1211 is fixed to the mounting plate 121 symmetrically with respect to the center line of the mounting plate 121 by bolts, and a plurality of sliders 1212 are arranged on the slide rail 1211 for horizontal sliding, and the bottom of the support plate 1213 and the sliders 1212 are fixed to each other, and the slide rail 1211 can provide a stable sliding path in the horizontal direction to ensure the smooth movement of the support plate 1213 and the deflection correction wheel 1215. The support plate 1213 is symmetrical about the center position of the mounting plate 121, and the sliders 1212 can move horizontally along the slide rail 1211, thereby driving the support plate 1213 and the deflection correction wheel 1215 to adjust their positions.

The first bearing seat 1214 and the correcting wheel 1215 are evenly distributed on the support plate 1213, and the first bearing seat 1214 and the correcting wheel 1215 are horizontally arranged on the support plate 1213. The centering transmission assembly 122 includes a transmission plate 1221 and a connecting rod 1222. The center position of the transmission plate 1221 is movably set on the mounting plate 121 through an axis, and the two ends of the transmission plate 1221 are respectively connected to the connecting rod 1222. When the transmission plate 1221 rotates, the connecting rod 1222 is driven to rotate synchronously. One end of the connecting rod 1222 is connected to the bottom of the support plate 1213 through an axis. When the connecting rod 1222 rotates, the two support plates 1213 can be moved closer to or away from each other.

In this embodiment, when the metal composite plate body 11 deviates during the transmission process, the operator can adjust the position of the deflection correction wheel 1215 by controlling the rotation of the transmission plate 1221. The rotation of the transmission plate 1221 will drive the connecting rod 1222 to rotate synchronously, so that the two support plates 1213 are close to each other, so that the deflection correction wheel 1215 is clamped to the side of the metal composite plate to correct the deflection of the metal composite plate.

The centering transmission assembly 122 also includes a worm wheel 1223, a worm 1224, and a second bearing seat 1226. The central axis of the worm wheel 1223 passes through the mounting plate 121 and is fixedly connected to the axis of the transmission plate 1221. The worm wheel 1223 and the worm 1224 are meshed with each other, and the worm 1224 is meshed with the worm wheel 1223 to form a worm wheel 1223 and worm 1224 transmission mechanism. The worm wheel 1223 and worm 1224 transmission mechanism has self-locking properties, which means that when the worm 1224 stops rotating, the worm wheel 1223 and the transmission plate 1221 connected thereto can also remain stationary to prevent position changes caused by external forces. The second bearing seat 1226 is fixed to the bottom of the mounting plate 121, the worm 1224 is rotatably arranged on the second bearing seat 1226, and when the worm 1224 rotates, the worm wheel 1223 is used to rotate; the deviation correction component 12 also includes a first rotating driving member 1225, the first rotating driving member 1225 is fixed to the bottom of the mounting plate 121, and the output end of the first rotating driving member 1225 is fixedly connected to the worm 1224 and is used to drive the worm 1224 to rotate.

When the first rotary drive member 1225 is started, it drives the worm 1224 to rotate. Since the worm 1224 and the worm wheel 1223 are meshed with each other, the rotation of the worm 1224 drives the worm wheel 1223 to rotate. The rotation of the worm wheel 1223 in turn causes the transmission plate 1221 to rotate, because the central axis of the worm wheel 1223 is fixedly connected to the axis of the transmission plate 1221. The rotation of the transmission plate 1221 drives the connecting rod 1222 to rotate synchronously, thereby keeping the position of the deviation correcting wheel 1215 stable after it contacts the metal composite plate, and does not move.

The cold rolling assembly 13 is arranged on the main body 1, and the cold rolling assembly 13 is used to roll the metal composite plate body 11, and the cold rolling assembly 13 is arranged in several groups on the metal composite plate body 11. The cold rolling assembly 13 includes a slide 131 and a cold rolling roller 132. The slide 131 is slidably arranged in the limit groove on the main body 1, and the cold rolling roller 132 is rotatably arranged on the slide 131. The slide 131 is slidably arranged in the limit groove on the main body 1 to ensure that the cold rolling roller 132 can stably move in a specific direction. And there are multiple slides 131 arranged on the limit groove on the main body 1. A second rotating drive member 137 is fixed on the slide 131 on the back of the main body 1. The output end of the second rotating drive member 137 is interconnected with the cold rolling roller 132 and is used to drive the cold rolling roller 132 to rotate; the second rotating drive member 137 is used to drive the cold rolling roller 132 to rotate. This design enables the cold rolling roller 132 to rotate at a constant speed and direction, ensuring that the metal composite plate obtains a uniform processing effect during the rolling process. The cold rolling roller 132 realizes rolling by contacting the metal composite plate body 11. The cold rolling assembly 13 also includes a guide rail 134 and a movable plate 135. The movable plate 135 is slidably arranged on the guide rail 134, and the guide rail 134 is fixed to the outside of the main body 1. Two adjustment rods 133 are rotatably arranged on the movable plate 135, and one end of the two adjustment rods 133 is movably connected to the upper and lower slides 131 through an axis. The movable plate 135 is used to move the adjustment rod 133 and drive the slides 131 to move closer or farther from each other. When the movable plate 135 moves, the adjustment rod 133 will follow the movement and generate a force arm through the connection point between the axis at both ends and the slide 131, thereby realizing the push or pull of the slide 131. The cold rolling assembly 13 further includes a telescopic driving member 136 , and the telescopic driving member 136 is fixed to the side of the main body 1 , and the output end of the telescopic driving member 136 is interconnected with the moving plate 135 and drives the moving plate 135 to move.

In this embodiment, by starting the telescopic driving member 136, the telescopic driving member 136 can move the movable plate 135, the movable plate 135 moves the adjusting rod 133, and the adjusting rod 133 moves the slide 131 up and down, so that the upper and lower cold rolling rollers 132 are close to each other and contact the surface of the metal color composite plate for cold rolling.

A detection component 14 for detecting the thickness of the metal composite plate body 11 is arranged between the two cold rolling components 13 on the main body 1, and the detection component 14 is used to detect the thickness of the metal composite plate body 11 after rolling in real time and transmit the data to the controller. The detection component 14 includes a lead screw 142 and a laser emitter 143, the lead screw 142 is movably arranged on the main body 1, there are two lead screws 142 distributed on the main body 1, and the laser emitter 143 is slidably arranged on one of the lead screws 142, and the laser sensor 144 is slidably arranged on the other laser sensor 144, and the laser emitter 143 emits laser light which is received by the laser sensor 144, and a limit rail 145 for limiting the lead screw 142 is also arranged in the main body 1, and a third rotating driving member 141 for rotating the lead screw 142 is also installed on the main body 1, and the output end of the third rotating driving member 141 is fixedly connected to one end of the lead screw 142.

In this embodiment, the lead screw 142 can be rotated by the third rotating drive member 141, thereby moving the laser emitter 143 and the laser sensor 144. When the laser emitter 143 emits a laser and is received by the laser sensor 144, the laser passes through the metal composite plate from top to bottom, and the metal composite plate blocks the laser. The thickness of the metal composite plate is calculated based on the time from the disappearance to the appearance of the laser, and it is determined whether the thickness of the metal composite plate reaches the preset standard. If it does not reach the standard, the cold rolling component 13 is controlled to make corresponding adjustments.

The main body 1 is also provided with an oil removal component 15, which is used to clean the oil on the metal composite plate body 11, and the oil removal component 15 is distributed on the upper and lower sides of the main body 1, and the oil removal component 15 includes an oil scraper 153 for scraping off the oil on the upper and lower surfaces of the metal composite plate body 11 and a nozzle 1542 for spraying a degreasing agent. The oil removal component 15 also includes a fixed platform 151, and the fixed platform 151 is fixed on the main body 1, the scraper 153 is rotatably set on the fixed platform 151, and the shaft on the scraper 153 passes through the side of the fixed platform 151 and is fixed with a driven wheel 1531, and the fourth rotating driving member 152 is fixed on both sides of the fixed platform 151, and the output end of the fourth rotating driving member 152 is connected to the driving wheel 1521, and the driving wheel 1521 and the driven wheel 1531 are connected by a belt. The oil removal assembly 15 also includes a main flow pipe 154 and a branch pipe 1541 . The branch pipe 1541 passes through the main body 1 and is interconnected with the nozzle 1542 . One end of the branch pipe 1541 is interconnected with one end of the main flow pipe 154 . The main flow pipe 154 is arranged outside the main body 1 .

In this embodiment, the main flow pipe 154 can be connected with the pipeline of the degreasing agent, and the degreasing agent is transported from the main flow pipe 154 and the branch pipe 1541 to the nozzle 1542 and sprayed onto the surface of the metal composite plate. At the same time, by starting the fourth rotating driving member 152, the fourth rotating driving member 152 causes the driving wheel 1521 to rotate, and the driving wheel 1521 drives the driven wheel 1531 to rotate through the belt, so that one end of the scraper 153 contacts the outer surface of the metal composite plate. When the metal composite plate moves, the oil stains on the surface of the metal composite plate are scraped off, so as to avoid the oil stains on the surface of the metal composite plate causing the metal composite plate to slip in the cold rolling roller 132, thereby affecting the quality of cold rolling.

Working principle: When in use, after the device is docked with the roller conveyor, the metal composite plate is placed on the roller conveyor, and the cold-rolled plate is transported to the device by the roller conveyor. When the metal composite plate passes between the deviation-correcting wheels 1215, the first rotating driving member 1225 is started, and the first rotating driving member 1225 rotates the worm 1224, and the worm 1224 rotates the worm wheel 1223, and the worm 1224 and the worm wheel 1223 also have a self-locking function, so that the worm wheel 1223 rotates the transmission plate 1221, and when the transmission plate 1221 rotates, the connecting rod 1222 rotates, and the two connecting rods 12 22 will rotate synchronously, so that the support plate 1213 moves synchronously, so that the correction wheel 1215 is clamped to the outer surface of the metal composite plate, so that the metal composite plate is limited in the center position to prevent the metal composite plate from deflecting during transmission. During cold rolling, the presence of oil stains on the metal composite plate may cause the friction between the cold rolling roller 132 and the metal composite plate to decrease, causing the metal composite plate to slip in the cold rolling roller 132. Therefore, the main flow pipe 154 can be connected to the pipeline of the degreasing agent, and the degreasing agent is transported from the main flow pipe 154 and the branch pipe 1541 to the nozzle 1542 and sprayed onto the surface of the metal composite plate. At the same time, by starting the fourth The fourth rotating driving member 152 rotates the driving wheel 1521, and the driving wheel 1521 drives the driven wheel 1531 to rotate through the belt, so that one end of the scraper 153 contacts the outer surface of the metal composite plate. When the metal composite plate moves, the oil on the surface of the metal composite plate is scraped off, and by starting the telescopic driving member 136, the telescopic driving member 136 can move the moving plate 135, and the moving plate 135 moves the adjusting rod 133, and the adjusting rod 133 moves the sliding member 131 up and down, so that the upper and lower cold rolling rollers 132 are close to each other and contact the surface of the metal composite plate for cold rolling. When the metal composite plate passes between the laser emitter 143 and the laser sensor 144, the third rotating drive member 141 can rotate the lead screw 142, thereby moving the laser emitter 143 and the laser sensor 144. When the laser emitter 143 emits a laser and is received by the laser sensor 144, the laser passes through the metal composite plate from top to bottom, and the metal composite plate blocks the laser. The thickness of the metal composite plate is calculated based on the time from the disappearance to the appearance of the laser. Then, the device adjusts the distance between the subsequent cold rolling rollers 132 according to the thickness of the metal composite plate, so that the metal composite plate is gradually cold-rolled to a suitable size.

The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims (10)

1. A metal composite plate cold rolling device, characterized in that it comprises a main body (1), a metal composite plate body (11), a deviation correction component (12) and a cold rolling component (13), wherein the main body (1) is provided with a limit groove, the deviation correction component (12) is arranged on the main body (1), the deviation correction component (12) can correct the deviation of the metal composite plate body (11), the metal composite plate body (11) passes through the deviation correction component (12) and also passes through the cold rolling component (13) ), the deviation correction component (12) comprises a deviation correction wheel (1215) and a centering transmission component (122), the centering transmission component (122) is used to make the deviation correction wheel (1215) move synchronously, and the deviation correction component (12) also comprises a support plate (1213) and a first bearing seat (1214), the first bearing seat (1214) is fixed to the support plate (1213) by bolts, and the deviation correction wheel (1215) is movably arranged in the first bearing seat (1214). 2. A metal material composite plate cold rolling device according to claim 1, characterized in that: the correction component (12) also includes a mounting plate (121), and a slide rail (1211) is fixed on the mounting plate (121) symmetrically relative to the center line of the mounting plate (121) by bolts, and a plurality of sliders (1212) are arranged on the slide rail (1211) for transverse sliding. 3. A metal composite plate cold rolling device according to claim 2, characterized in that: the bottom of the support plate (1213) and the slider (1212) are fixed to each other, and the support plate (1213) is symmetrical about the center position of the mounting plate (121). 4. A metal material composite plate cold rolling device according to claim 1, characterized in that: the first bearing seat (1214) and the correcting wheel (1215) are evenly distributed on the support plate (1213), and the first bearing seat (1214) and the correcting wheel (1215) are transversely arranged on the support plate (1213). 5. A metal material composite plate cold rolling device according to claim 1, characterized in that: the centering transmission assembly (122) includes a transmission plate (1221) and a connecting rod (1222), the center position of the transmission plate (1221) is movably set on the mounting plate (121) through an axis, and the two ends of the transmission plate (1221) are respectively connected to the connecting rod (1222), when the transmission plate (1221) rotates, the connecting rod (1222) is driven to rotate synchronously, one end of the connecting rod (1222) is connected to the bottom of the support plate (1213) through an axis, and when the connecting rod (1222) rotates, the two support plates (1213) can be moved closer to or away from each other. 6. A metal material composite plate cold rolling device according to claim 5, characterized in that: the centering transmission assembly (122) also includes a worm wheel (1223), a worm (1224) and a second bearing seat (1226), the central axis of the worm wheel (1223) passes through the mounting plate (121) and is fixedly connected to the axis of the transmission plate (1221), the worm wheel (1223) and the worm (1224) are meshed with each other, the second bearing seat (1226) is fixed to the bottom of the mounting plate (121), the worm (1224) is rotatably arranged on the second bearing seat (1226), and when the worm (1224) rotates, it is used to rotate the worm wheel (1223); The deviation correction component (12) further comprises a first rotation driving member (1225), wherein the first rotation driving member (1225) is fixed to the bottom of the mounting plate (121), and an output end of the first rotation driving member (1225) is fixedly connected to the worm (1224) and is used to drive the worm (1224) to rotate. 7. A metal composite plate cold rolling device according to claim 1, characterized in that: a cold rolling assembly (13) is arranged on a main body (1), the cold rolling assembly (13) is used to roll the metal composite plate body (11), and a plurality of cold rolling assemblies (13) are arranged on the metal composite plate body (11). 8. A metal composite plate cold rolling device according to claim 1, characterized in that: a detection component (14) for detecting the thickness of the metal composite plate body (11) is arranged between the two cold rolling components (13) on the main body (1), and the detection component (14) is used to detect the thickness of the metal composite plate body (11) after rolling in real time and transmit the data to the controller. 9. A metal composite plate cold rolling device according to claim 1, characterized in that: an oil removal component (15) is also provided on the main body (1), and the oil removal component (15) is used to clean the oil stains on the metal composite plate body (11), and the oil removal component (15) is distributed on the upper and lower sides of the main body (1). 10. A metal composite plate cold rolling device according to claim 9, characterized in that the degreasing component (15) includes a scraper (153) for scraping off the oil stains on the upper and lower surfaces of the metal composite plate body (11) and a nozzle (1542) for spraying a degreasing agent.