High-precision roll gap adjusting device for copper strip rolling

Abstract

The invention relates to the technical field of roll gap adjustment, and provides a high-precision roll gap adjusting device for copper strip rolling, which comprises two racks, the top sides of the inner walls of the two racks are fixedly connected with support frames I, and the bottom sides of the inner walls of the two racks are slidably connected with support frames II; rollers are rotationally connected to the close ends of the two first supporting frames and the two second supporting frames, distance measuring assemblies and second bottom plates are arranged at the bottom ends of the two first supporting frames and the top ends of the two second supporting frames, the left end and the right end of each second bottom plate are fixedly connected to the close ends of the two racks, and lead screws are rotationally connected to the inner walls of the second bottom plates. The outer wall of the lead screw is connected with two second wedge-shaped plates through connecting assemblies. The roll gap is monitored in real time through the distance measuring assembly composed of the laser distance measuring instrument and the reflection target, closed-loop control is formed in combination with the core control unit, and deviation in the adjusting process and roll gap drifting after long-term use are effectively reduced in cooperation with precise slope transmission of the wedge-shaped plate and the locking effect of the damper.

Description

Technical Field

[0001] The present invention relates to the technical field of roll gap adjustment, in particular to a high-precision roll gap adjustment device for copper strip rolling. Background Art

[0002] Copper strip is a key material in the electronics, information technology, and power engineering sectors. Its thickness accuracy directly impacts the performance of end products, necessitating precise control of the roll gap during the rolling process. With the growing demand for ultra-thin, high-precision copper strip, the accuracy, stability, and emergency response capabilities of the roll gap adjustment device have become key factors limiting product quality.

[0003] Among the existing copper strip rolling roll gap adjustment devices, traditional devices mostly rely on hydraulic drive or simple mechanical transmission, lack real-time monitoring and closed-loop adjustment mechanisms, and the laser ranging components are easily affected by rolling vibration and oil pollution, resulting in measurement deviations, and the wedge adjustment mechanism produces a fit gap due to wear. After long-term use, the roll gap drifts significantly, making it difficult to meet the rolling requirements of high-precision copper strips; secondly, the emergency response is inefficient. When the motor and other driving components fail, manual adjustment requires disassembly of multiple connectors to switch the transmission path. The operation is cumbersome and time-consuming, which can easily cause production interruptions and even cause safety hazards due to loss of control of the roll gap; thirdly, the structural stability is lacking. The screw drive and the wedge plate mating parts lack effective damping and pre-tightening structures, which are prone to slight displacements under rolling force fluctuations, resulting in a decrease in the thickness consistency of the copper strip. At the same time, the equipment has poor adaptability to copper strips of different specifications, and parameters need to be repeatedly calibrated when changing models, resulting in low production efficiency. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a high-precision roll gap adjustment device for copper strip rolling, which solves the problem that traditional devices mostly rely on hydraulic drive or simple mechanical transmission and lack real-time monitoring and closed-loop adjustment mechanisms.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A high-precision roll gap adjustment device for copper strip rolling, comprising: Two frames, the top sides of the inner walls of the two frames are fixedly connected to support frame 1, the bottom sides of the inner walls of the two frames are slidably connected to support frame 2, the two support frames 1 and the two support frames 2 are rotatably connected to rollers at one end, and the bottom ends of the two support frames 1 and the top ends of the two support frames 2 are provided with distance measuring components; The second bottom plate has its left and right ends fixedly connected to one end of the two frames, the inner wall of the second bottom plate is rotatably connected to a screw rod, the outer wall of the screw rod is connected to two wedge plates two through a connecting assembly, the top ends of the two wedge plates two are connected to the wedge plate one through a limit block, the top ends of the two wedge plates one are fixedly connected to a protrusion, the proximate ends of the two protrusions are respectively fixedly connected to the separated ends of the two support frames two, the bottom ends of the two wedge plates are connected to the bottom frame through a slider, and the proximate ends of the two bottom frames are respectively fixedly connected to the separated ends of the two frames; Base plate one, the left and right ends of the base plate one are fixedly connected to the adjacent ends of the two frames, the outer wall of the screw rod is rotatably connected to the inner wall of the base plate one, the front end of the screw rod is fixedly connected to a circular tenon nut one, the front end of the base plate one is fixedly connected to a circular tenon nut two, the outer wall of the circular tenon nut two is connected to a crank through a limiting assembly, and the circular tenon nut one and the circular tenon nut two have the same size.

[0006] Preferably, the ranging assembly includes a laser rangefinder located at the bottom end of two support frames, the top ends of the two support frames are fixedly connected to reflective targets, the rear end of the base plate is fixedly connected to a core control unit, and the top side of the left end of the left frame is fixedly connected to a display screen.

[0007] Preferably, the connecting assembly includes two connecting rods located on the outer wall of the screw rod and connected by a threaded sleeve, the two connecting rods are fixedly connected to a support rod on the rear side of one end, the rear ends of the two support rods are fixedly connected to a fixing plate, and the rear ends of the two fixing plates are respectively fixedly connected to the front ends of the two wedge plates.

[0008] Preferably, the limiting assembly includes a tenon block located on the outer wall of the second circular tenon nut, the outer wall of the tenon block is fixedly connected to the inner wall of the crank, the inner wall of the second circular tenon nut is fixedly connected with a sliding rod, the outer wall of the sliding rod is slidably connected to two L-shaped limiting plates, and the rear ends of the two L-shaped limiting plates are arranged at the front end of the crank.

[0009] Preferably, a spring is provided on the outer wall of the slide rod, one end of the spring is provided at the right end of the left L-shaped limiting plate, and the other end of the spring is provided at the left end of the right L-shaped limiting plate.

[0010] Preferably, the bottom end of the limit block is fixedly connected to the top end of the wedge plate 2, the outer wall of the limit block is slidably connected to the bottom end of the wedge plate 1, the top end of the slider is fixedly connected to the bottom end of the wedge plate 2, and the outer wall of the slider is slidably connected to the top end of the base frame.

[0011] Preferably, a motor is installed at the rear end of the second base plate through a fixing bracket, and the driving end of the motor is fixedly connected to the rear end of the screw rod.

[0012] Preferably, the front and rear sides of the outer wall of the screw rod are rotatably connected to the inner walls of the bottom plate 1 and the bottom plate 2 through a damper.

[0013] A high-precision roll gap adjustment method for copper strip rolling comprises the following steps: Step 1: System initialization, start the core control unit, and the laser rangefinder emits laser light to the reflective target at the top of the second support frame to calibrate the initial distance between the two rollers. The calibration data is displayed on the display in real time and stored in the core control unit; Step 2: Parameter input, input the roller gap value corresponding to the target copper strip thickness through the core control unit, and the system automatically calculates the required adjustment amount, where the adjustment amount =initial roll gap value-target roll gap value; Step 3: Automatic adjustment: The core control unit drives the motor to start, and the motor drives the screw to rotate. The screw drives the second wedge plate to slide along the slider on the base frame through the connecting component. The second wedge plate cooperates with the inclined surface of the first wedge plate, and the protrusion pushes the second support frame up and down to adjust the distance between the two rollers. During the adjustment process, the laser rangefinder collects the roll gap data in real time and feeds it back to the core control unit, forming a closed-loop control until the roll gap value reaches the target value; Emergency adjustment: when the motor fails, pull the two L-shaped limit plates inward to compress the spring on the slide rod and release the limit of the L-shaped limit plates on the crank handle; remove the crank handle from the circular tenon nut 2 through the tenon block, then insert the tenon block into the tenon groove of the circular tenon nut 1, shake the crank handle to drive the screw to rotate, and repeat the mechanical adjustment action in step 3 until the roller gap reaches the target value; Step 4: Locking and monitoring. After the adjustment is completed, the core control unit controls the motor to stop running or removes the crank to limit the movement through damping to achieve roller gap locking; the laser rangefinder continuously monitors the roller gap value. If there is a deviation, the system automatically alarms and triggers secondary adjustment.

[0014] Preferably, in step 3, the closed-loop control response time of the core control unit is less than 50ms, and when the deviation between the real-time roll gap value fed back by the laser rangefinder and the target value is greater than 0.1mm, the motor automatically adjusts the speed, and the speed adjustment accuracy is ±0.1r / min; the sliding speed of the wedge plate 2 and the motor speed satisfy the relationship: ,in is the sliding speed of the wedge plate 2, is the motor speed, is the proportional coefficient.

[0015] Working principle: According to the thickness of the copper strip to be rolled, start the laser rangefinder so that the laser emitted by the laser rangefinder is irradiated on the reflective target. At this time, the distance between the two rollers will be displayed on the screen. Then, according to the thickness required, start the motor to drive the screw to rotate. When the screw rotates, it will drive the connecting rod to move under the action of the nut, and when the connecting rod moves, it can drive the wedge plate 2 to move through the support rod and the fixed plate, thereby adjusting the distance between the two rollers. When the motor fails to drive the screw to rotate, the two L-shaped limit plates can be pulled in a similar direction, which will cause the screw to rotate. The spring is squeezed, and the L-shaped limit plate can cancel the limit on the crank handle, so that the crank handle can be removed from the circular tenon nut two through the tenon block, and then the crank handle is inserted into the circular tenon nut one through the tenon block. Then, shaking the crank handle can drive the screw rod to rotate through the circular tenon nut one, thereby driving the connecting rod to move and adjust the distance between the two rollers. When the motor resumes driving, the crank handle is removed from the circular tenon nut one, and then the L-shaped limit plate is pulled to release the limit, and the crank handle is inserted into the circular tenon nut two. Then, the L-shaped limit plate is released and rebounded to its original position under the action of the spring to limit the crank handle. When adjusting the distance between the two rollers, moving the wedge plate 2 forward will cause the bottom roller to move downward, thereby increasing the distance between the two rollers. Moving the wedge plate 2 backward will cause the bottom roller to move upward, thereby reducing the distance between the two rollers.

[0016] The present invention provides a high-precision roll gap adjustment device for copper strip rolling. It has the following beneficial effects: 1. The present invention uses a distance measurement assembly consisting of a laser rangefinder and a reflective target to monitor the roll gap in real time. Combined with the core control unit to form a closed-loop control, the precise inclined transmission of the wedge plate and the locking effect of the damper effectively reduce the deviation during the adjustment process and the roll gap drift after long-term use. This solves the problem of poor thickness consistency of the copper strip caused by insufficient precision in traditional devices and meets the needs of high-precision rolling.

[0017] 2. This invention addresses motor failure scenarios by using a limiter assembly to quickly switch the crank handle between circular nut 1 and circular nut 2, eliminating the need for complex disassembly and enabling manual adjustment, significantly improving emergency response efficiency. Furthermore, a spring-loaded limiter prevents the crank handle from loosening when not in operation, and a damper helps lock the roller gap, preventing unintended movement and enhancing equipment operational safety.

[0018] 3. The present invention realizes stable power transmission through connecting components. The cooperation between the wedge plate and the slider ensures smooth adjustment action, which can adapt to the rolling requirements of copper strips of different specifications. The core control unit supports parameter storage and automatic calculation of adjustment amount, and cooperates with the real-time feedback of the display screen to reduce manual operation intervention and improve the intelligence level and production efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 This is a schematic structural diagram of the core control unit of the present invention; Figure 3 Schematic diagram of the screw rod structure of the present invention; Figure 4 This is a structural diagram of a circular tenon nut according to the present invention; Figure 5 for Figure 4 A magnified view of point A; Figure 6 It is a schematic diagram of the limit block structure of the present invention.

[0020] Among them, 1. Frame; 2. Support frame 1; 3. Support frame 2; 4. Roller; 5. Bump; 6. Wedge plate 1; 7. Wedge plate 2; 8. Limit block; 9. Slider; 10. Base frame; 11. Fixed plate; 12. Support rod; 13. Connecting rod; 14. Bottom plate 1; 15. Bottom plate 2; 16. Screw; 17. Motor; 18. Core control unit; 19. Circular tenon nut 1; 20. Circular tenon nut 2; 21. Crank; 22. Tenon block; 23. Slider; 24. Spring; 25. L-shaped limit plate; 26. Laser rangefinder; 27. Reflective target; 28. Display screen. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0022] Please see the attached Figure 1 -Attached Figure 6 The embodiment of the present invention provides a high-precision roll gap adjustment device for copper strip rolling, comprising: Two frames 1, the top sides of the inner walls of the two frames 1 are fixedly connected to support frame 1 2, the bottom sides of the inner walls of the two frames 1 are slidably connected to support frame 2 3, the two support frames 1 2 and the two support frames 2 3 are rotatably connected to rollers 4 at one end, and the bottom ends of the two support frames 1 2 and the top ends of the two support frames 2 3 are provided with laser rangefinders 26; Bottom plate 2 15, the left and right ends of bottom plate 2 15 are fixedly connected to the adjacent ends of the two frames 1, the inner wall of bottom plate 2 15 is rotatably connected to a screw rod 16, the outer wall of screw rod 16 is connected to two wedge plates 2 7 through a connecting rod 13, a support rod 12 and a fixed plate 11, the tops of the two wedge plates 2 7 are connected to the wedge plate 1 6 through a limit block 8, the tops of the two wedge plates 1 6 are fixedly connected to a protrusion 5, the adjacent ends of the two protrusions 5 are respectively fixedly connected to the separated ends of the two support frames 2 3, the bottom ends of the two wedge plates 2 7 are connected to the base frame 10 through a slider 9, and the adjacent ends of the two base frames 10 are respectively fixedly connected to the separated ends of the two frames 1; The bottom plate 14 has its left and right ends fixedly connected to the adjacent ends of the two frames 1. The outer wall of the screw rod 16 is rotatably connected to the inner wall of the bottom plate 14. The front end of the screw rod 16 is fixedly connected to a circular tenon nut 19. The front end of the bottom plate 14 is fixedly connected to a circular tenon nut 20. The outer wall of the circular tenon nut 20 is connected to a crank 21 through a tenon block 22. The circular tenon nut 19 and the circular tenon nut 20 have the same size. Specifically, the frame 1 is an integral supporting structure, made of high-strength cast iron, and is aged to eliminate internal stress. The support frame 1 2 is rigidly connected to the frame 1 by bolts, and the sliding fit between the support frame 2 3 and the frame 1 adopts a high-precision guide pair. The roller 4 is connected to the support frame through a bearing seat, and the bearings are precision double-row cylindrical roller bearings. According to the thickness of the copper strip to be rolled, the core control unit 18 is first started to complete the system self-test, and then the laser rangefinder 26 is preheated for 30 seconds and then emits a laser, accurately irradiating the center of the reflective target 27. At this time, the display screen 28 synchronously displays the initial spacing between the two rollers 4 and automatically stores it in the historical record of the core control unit 18 for easy subsequent tracing.

[0023] The distance measuring component includes a laser rangefinder 26 located at the bottom end of the two support frames 2, a reflective target 27 is fixedly connected to the top of the two support frames 23, a core control unit 18 is fixedly connected to the rear end of the bottom plate 215, and a display screen 28 is fixedly connected to the top side of the left end of the left frame 1. The connecting component includes two connecting rods 13 located on the outer wall of the screw rod 16 and connected by a threaded sleeve. The two connecting rods 13 are fixedly connected to the support rod 12 at the rear side of one end. The rear ends of the two support rods 12 are fixedly connected to the fixing plates 11. The rear ends of the two fixing plates 11 are respectively fixedly connected to the front ends of the two wedge-shaped plates 27. The limiting component includes a tenon block 22 located on the outer wall of the circular tenon nut 20. The outer wall of the tenon block 22 is fixedly connected to the inner wall of the crank 21. The inner wall of the circular tenon nut 20 is fixedly connected to the sliding rod 23. The outer wall of the rod 23 is slidably connected to two L-shaped limit plates 25, and the rear ends of the two L-shaped limit plates 25 are set at the front end of the crank 21. The outer wall of the slide rod 23 is provided with a spring 24, one end of the spring 24 is set at the right end of the left L-shaped limit plate 25, and the other end of the spring 24 is set at the left end of the right L-shaped limit plate 25. The bottom end of the limit block 8 is fixedly connected to the top of the wedge plate 27, and the outer wall of the limit block 8 is slidably connected to the bottom end of the wedge plate 16. The top of the slider 9 is fixedly connected to the bottom end of the wedge plate 27, and the outer wall of the slider 9 is slidably connected to the top of the base frame 10. The rear end of the bottom plate 2 15 is equipped with a motor 17 through a fixed frame, and the driving end of the motor 17 is fixedly connected to the rear end of the screw rod 16. The front and rear sides of the outer wall of the screw rod 16 are rotatably connected to the inner walls of the bottom plate 14 and the bottom plate 2 15 through a damper; Specifically, the laser rangefinder 26 and the axis of the reflective target 27 are collinear and perpendicular to the axis of the roller 4, ensuring that the measuring direction is consistent with the roll gap adjustment direction and eliminating the cosine error; the surface of the reflective target 27 is processed with a cross positioning line, which coincides with the positioning reference of the support frame 23, ensuring that the distance between the measuring point and the axis of the roller 4 is constant; the core control unit 18 receives the real-time data of the laser rangefinder 26, and converts the distance value into the roll gap value through the built-in algorithm. The display screen 28 displays the current roll gap value, target value and adjustment progress in real time. When there is a deviation between the actual value and the target value, The time difference triggers the sound and light alarm to remind the operator to intervene, forming a visual closed-loop control window. The thread of the screw rod 16 is a high-precision trapezoidal thread, and the threaded sleeve is made of wear-resistant bronze, which forms a low-friction fit with the screw rod to ensure that the rotary motion is efficiently converted into linear motion; the connection between the connecting rod 13 and the threaded sleeve adopts a hinged hole bolt to eliminate radial clearance and ensure that the power transmission is lag-free; the support rod 12 is a hollow structure, and the connection between the two ends and the connecting rod 13 and the fixed plate 11 is welded, and aging treatment is performed after welding to ensure that there is no elastic deformation under the action of thrust; The connecting surface between the fixed plate 11 and the wedge plate 27 is precisely ground to ensure that the wedge plate 27 is evenly stressed and avoids sliding jamming due to eccentric load. The circular tenon 19 and the circular tenon 20 are of the same size, and the tenon block 22 can be smoothly inserted into the circular tenon 19 and the circular tenon 20. When the motor 17 fails, the operator can pull the two L-shaped limit plates 25 inward. At this time, the spring 24 on the slide bar 23 is compressed, and the L-shaped limit plate 25 cancels the limit on the crank 21 and releases the lock; the crank 21 quickly passes through the tenon block 22 After removing it, align it with the tenon groove of the circular tenon nut 19 and insert it. Then shake the crank 21 to drive the screw 16 to rotate through the circular tenon nut 19 and repeat the mechanical adjustment action. During the adjustment process, the display screen 28 displays the roller gap value in real time. When adjusting the distance between the two rollers 4, the wedge plate 2 7 moves forward, and its inclined surface pushes the wedge plate 1 6 to move downward, driving the support frame 2 3 and the bottom roller 4 to move downward synchronously through the protrusion 5, so that the roller gap increases; when the wedge plate 2 7 moves backward, the wedge plate 6 moves upward, driving the bottom roller 4 to move upward, so that the roller gap decreases.

[0024] A high-precision roll gap adjustment method for copper strip rolling comprises the following steps: Step 1: System initialization, start the core control unit 18, the laser rangefinder 26 emits laser light to the reflective target 27 at the top of the support frame 3, and calibrates the initial distance between the two rollers 4. The calibration data is displayed in real time on the display screen 28 and stored in the core control unit 18; Step 2: Parameter input, input the roller gap value corresponding to the target copper strip thickness through the core control unit 18, and the system automatically calculates the required adjustment amount, where the adjustment amount =initial roll gap value-target roll gap value; Step 3: Automatic adjustment: The core control unit 18 drives the motor 17 to start, and the motor 17 drives the screw 16 to rotate. The screw 16 drives the wedge plate 2 7 to slide along the slider 9 on the base frame 10 through the connecting component. The wedge plate 2 7 cooperates with the inclined surface of the wedge plate 1 6, and pushes the support frame 2 3 up and down through the protrusion 5, thereby adjusting the distance between the two rollers 4. During the adjustment process, the laser rangefinder 26 collects the roll gap data in real time and feeds it back to the core control unit 18, forming a closed-loop control until the roll gap value reaches the target value; Emergency adjustment: When the motor 17 fails, pull the two L-shaped limit plates 25 inward to compress the spring 24 on the slide bar 23, releasing the limit of the L-shaped limit plates 25 on the crank handle 21; remove the crank handle 21 from the circular tenon nut 20 through the tenon block 22, and then insert the tenon block 22 into the tenon groove of the circular tenon nut 19. Shake the crank handle 21 to drive the screw rod 16 to rotate, and repeat the mechanical adjustment action in step 3 until the roller gap reaches the target value; Step 4: Locking and monitoring. After the adjustment is completed, the core control unit 18 controls the motor 17 to stop running or removes the crank 21 to limit the movement through damping to achieve roller gap locking. The laser rangefinder 26 continuously monitors the roller gap value. If there is a deviation, the system automatically alarms and triggers secondary adjustment.

[0025] In step 3, the closed-loop control response time of the core control unit 18 is less than 50ms. When the deviation between the real-time roll gap value fed back by the laser rangefinder 26 and the target value is greater than 0.1mm, the motor 17 automatically adjusts the speed with a speed adjustment accuracy of ±0.1r / min. The sliding speed of the wedge plate 2 7 and the speed of the motor 17 satisfy the relationship: ,in is the sliding speed of the wedge plate 27, is the motor speed, is the proportional coefficient.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision roll gap adjustment device for copper strip rolling, characterized in that: include: Two frames (1), the top sides of the inner walls of the two frames (1) are fixedly connected to support frame 1 (2), the bottom sides of the inner walls of the two frames (1) are slidably connected to support frame 2 (3), the two support frames 1 (2) and the two support frames 2 (3) are rotatably connected to rollers (4), and the bottom ends of the two support frames 1 (2) and the top ends of the two support frames 2 (3) are provided with distance measuring components; Base plate 2 (15), the left and right ends of the base plate 2 (15) are fixedly connected to the adjacent ends of the two frames (1), the inner wall of the base plate 2 (15) is rotatably connected to a screw rod (16), the outer wall of the screw rod (16) is connected to two wedge plates 2 (7) through a connecting assembly, the top ends of the two wedge plates 2 (7) are connected to the wedge plate 1 (6) through a limit block (8), the top ends of the two wedge plates 1 (6) are fixedly connected to a protrusion (5), the adjacent ends of the two protrusions (5) are respectively fixedly connected to the separated ends of the two support frames 2 (3), the bottom ends of the two wedge plates 2 (7) are connected to the base frame (10) through a slider (9), and the adjacent ends of the two base frames (10) are respectively fixedly connected to the separated ends of the two frames (1); A bottom plate (14), the left and right ends of the bottom plate (14) are fixedly connected to the adjacent ends of the two frames (1), the outer wall of the screw rod (16) is rotatably connected to the inner wall of the bottom plate (14), the front end of the screw rod (16) is fixedly connected to a circular tenon nut (19), the front end of the bottom plate (14) is fixedly connected to a circular tenon nut (20), the outer wall of the circular tenon nut (20) is connected to a crank (21) through a limit assembly, and the circular tenon nut (19) and the circular tenon nut (20) are of the same size.

2. A high-precision roll gap adjustment device for copper strip rolling according to claim 1, characterized in that: The distance measuring assembly includes a laser rangefinder (26) located at the bottom end of the two support frames (2), a reflective target (27) is fixedly connected to the top end of the two support frames (3), a core control unit (18) is fixedly connected to the rear end of the bottom plate (15), and a display screen (28) is fixedly connected to the top side of the left end of the left frame (1).

3. The high-precision roll gap adjustment device for copper strip rolling according to claim 1, characterized in that: The connecting assembly comprises two connecting rods (13) located on the outer wall of the screw rod (16) and connected by a threaded sleeve. The two connecting rods (13) are fixedly connected to a support rod (12) at the rear side of one end. The rear ends of the two support rods (12) are fixedly connected to a fixing plate (11). The rear ends of the two fixing plates (11) are respectively fixedly connected to the front ends of the two wedge-shaped plates (7).

4. The high-precision roll gap adjustment device for copper strip rolling according to claim 1, characterized in that: The limiting assembly includes a tenon block (22) located on the outer wall of the circular tenon nut (20), the outer wall of the tenon block (22) is fixedly connected to the inner wall of the crank (21), the inner wall of the circular tenon nut (20) is fixedly connected to a slide rod (23), the outer wall of the slide rod (23) is slidably connected to two L-shaped limiting plates (25), and the rear ends of the two L-shaped limiting plates (25) are arranged at the front end of the crank (21).

5. A high-precision roll gap adjustment device for copper strip rolling according to claim 4, characterized in that: A spring (24) is provided on the outer wall of the slide bar (23), one end of the spring (24) is provided at the right end of the left L-shaped limiting plate (25), and the other end of the spring (24) is provided at the left end of the right L-shaped limiting plate (25).

6. The high-precision roll gap adjustment device for copper strip rolling according to claim 1, characterized in that: The bottom end of the limit block (8) is fixedly connected to the top end of the wedge plate 2 (7), the outer wall of the limit block (8) is slidably connected to the bottom end of the wedge plate 1 (6), the top end of the slider (9) is fixedly connected to the bottom end of the wedge plate 2 (7), and the outer wall of the slider (9) is slidably connected to the top end of the base frame (10).

7. The high-precision roll gap adjustment device for copper strip rolling according to claim 1, characterized in that: A motor (17) is mounted on the rear end of the second base plate (15) via a fixing frame, and a driving end of the motor (17) is fixedly connected to the rear end of the screw rod (16).

8. The high-precision roll gap adjustment device for copper strip rolling according to claim 1, characterized in that: The front and rear sides of the outer wall of the screw rod (16) are rotatably connected to the inner walls of the bottom plate 1 (14) and the bottom plate 2 (15) through dampers.

9. A method for adjusting the high-precision roll gap for copper strip rolling, using a high-precision roll gap adjusting device for copper strip rolling according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: System initialization, start the core control unit (18), the laser rangefinder (26) emits laser light to the reflective target (27) at the top of the second support frame (3), and calibrates the initial distance between the two rollers (4). The calibration data is displayed in real time on the display screen (28) and stored in the core control unit (18); Step 2: Parameter input: input the roller gap value corresponding to the target copper strip thickness through the core control unit (18), and the system automatically calculates the required adjustment amount, where the adjustment amount =initial roll gap value-target roll gap value; Step 3: Automatic adjustment, the core control unit (18) drives the motor (17) to start, the motor (17) drives the screw (16) to rotate, the screw (16) drives the wedge plate 2 (7) to slide along the slider (9) on the base frame (10) through the connecting component, the wedge plate 2 (7) cooperates with the inclined surface of the wedge plate 1 (6), and pushes the support frame 2 (3) up and down through the protrusion (5), thereby adjusting the distance between the two rollers (4). During the adjustment process, the laser rangefinder (26) collects the roller gap data in real time and feeds it back to the core control unit (18), forming a closed-loop control until the roller gap value reaches the target value; Emergency adjustment: when the motor (17) fails, pull the two L-shaped limit plates (25) inward to compress the spring (24) on the slide bar (23) to release the limit of the L-shaped limit plate (25) on the crank (21); remove the crank (21) from the circular tenon nut (20) through the tenon block (22), and then insert the tenon block (22) into the tenon groove of the circular tenon nut (19). Shake the crank (21) to drive the screw (16) to rotate, and repeat the mechanical adjustment action in step 3 until the roller gap reaches the target value; Step 4: Locking and monitoring. After the adjustment is completed, the core control unit (18) controls the motor (17) to stop running or removes the crank (21) to limit the movement through damping to achieve roller gap locking; the laser rangefinder (26) continuously monitors the roller gap value. If there is a deviation, the system automatically alarms and triggers secondary adjustment.

10. A high-precision roll gap adjustment method for copper strip rolling according to claim 9, characterized in that: In step 3, the closed-loop control response time of the core control unit (18) is less than 50ms. When the deviation between the real-time roller gap value fed back by the laser rangefinder (26) and the target value is greater than 0.1mm, the motor (17) automatically adjusts the speed, and the speed adjustment accuracy is ±0.1r / min. The sliding speed of the wedge plate 2 (7) and the speed of the motor (17) satisfy the relationship: ,in is the sliding speed of wedge plate 2 (7), is the motor speed, is the proportional coefficient.

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