A multi-functional field assisted rolling mill for producing an extremely thin strip

Abstract

The application discloses a rolling mill for multi-function field assisted rolling of an extremely thin strip, which comprises a rolling device arranged in a rack; the rack is fixedly installed on a stand; the rolling assembly comprises an upper roller assembly, a lower roller assembly and a guide assembly; an ultrasonic assembly is installed on the rolling device for applying an amplitude to the rolling device; a winding drum assembly comprises a strip feeding assembly and a strip winding assembly; the application adjusts the roll gap between the upper and lower rollers to change the reduction of the extremely thin strip; the ultrasonic assembly is installed at the bottom end of the two bearing seats of the lower roller; the amplitude applied to the lower roller is adjusted by changing the amplitude output by the transducer of the ultrasonic assembly; the plastic deformation capacity of the extremely thin strip is effectively improved, and the extremely thin strip with higher quality is rolled; the application is also applicable to the process of current-assisted rolling; the guide assembly is connected with the two clamps of a pulse power source, and the effect of current-assisted rolling of the strip can be realized.

Description

Technical Field

[0001] This invention belongs to the field of ultra-thin strip rolling technology, and particularly relates to a rolling mill for ultra-thin strip rolling with multi-energy field assistance. Background Technology

[0002] With the advancement of high-end manufacturing technology in China, industries such as computers, batteries, superconducting cables, and various robots have placed increasingly stringent demands on the uniformity and high quality of ultra-thin metal strips. For example, 0.009–0.020 mm thick copper strips are widely used in the manufacture of electric vehicle batteries and printed circuit boards; 0.04–0.07 mm thick Hastelloy strips can be used to manufacture long-length superconducting cables; 0.025–0.05 mm thick stainless steel strips are used in airbags; and 0.015–0.03 mm thick stainless steel strips are used in flexible filter substrates. Furthermore, the rapid development of advanced manufacturing technologies has accelerated the miniaturization and refinement of mechanical systems, leading to the development of microdevices towards precision, miniaturization, and multifunctionality. This places even more stringent requirements on the surface quality, dimensional accuracy, residual stress, microstructure, and other performance aspects of precision ultra-thin strips. For example, the substrate for foldable displays typically uses an ultra-thin strip of stainless steel with a thickness of 0.02-0.05mm, requiring low residual stress and extremely high resistance to bending fatigue; the photomask for OLED screens typically uses an ultra-thin strip of Fe-Ni alloy with a thickness of 0.015-0.03mm, requiring extremely low residual stress and extremely high surface finish.

[0003] Currently, the production process of precision ultra-thin strip still faces bottlenecks such as high and uneven residual stress, large surface roughness with obvious texture, and large average grain size. These issues lead to low reliability in critical applications, specifically manifested as severe secondary forming deformation, uneven distribution of surface vapor-deposited film thickness, weak surface corrosion resistance, and low bending fatigue strength. Traditional control methods are no longer sufficient to meet the stringent requirements for precise control of surface residual stress and surface roughness during the extreme rolling process of precision ultra-thin strip. Summary of the Invention

[0004] The purpose of this invention is to provide a rolling mill for multi-energy field assisted rolling of ultra-thin strips to solve the above-mentioned problems, thereby effectively improving the plastic deformation capacity of ultra-thin strips by utilizing ultrasonic energy fields, and rolling out precision ultra-thin strips with smaller thickness, less residual stress, and better surface finish.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] A multi-energy field assisted rolling mill for ultra-thin strip, comprising:

[0007] A rolling apparatus is placed inside a frame; the frame is fixedly mounted on a platform; the rolling assembly includes an upper roll assembly, a lower roll assembly, and a guide assembly; a temperature sensor is installed on the guide assembly; the temperature sensor interacts with a pneumatic device; the pneumatic device is used to reduce the temperature during the ultra-thin strip rolling process;

[0008] An ultrasonic component, mounted on the rolling mill, is used to apply an amplitude to the rolling mill.

[0009] The winding device includes a tape feeding assembly and a tape take-up assembly, which are respectively located on both sides of the frame; the ultra-thin tape is fed out from the tape feeding assembly, rolled by the rolling assembly, and then wound up by the tape take-up assembly.

[0010] The frame includes four columns, each of which is fixedly mounted with a guide rail; two sliders are slidably mounted in each guide rail; the two sliders on the same guide rail are respectively fixedly connected to the upper roll assembly and the lower roll assembly through a connecting plate; an inert gas protective cover is also fixedly mounted on the outside of the column, and the inert gas protective cover is connected to a pneumatic device.

[0011] The guiding assembly includes an inlet guide roller and an outlet guide roller installed on the outside of the column; the temperature sensor is installed on both the inlet guide roller and the outlet guide roller.

[0012] The lower roll assembly includes a lower roll, both sides of which are sealed and installed in the lower bearing housing on the operating side and the lower bearing housing on the transmission side by needle roller bearings and deep groove ball bearings; a cover is fixedly installed on the side of the lower bearing housing on the operating side away from the lower roll; a through cover is fixedly installed on the side of the lower bearing housing on the transmission side away from the lower roll.

[0013] One end of the lower roll passes through the transmission side lower bearing seat and the cover, and is connected to the rolling drive motor; the bottom surface of the operating side lower bearing seat and the bottom surface of the transmission side lower bearing seat are respectively in contact with the ultrasonic component.

[0014] Both the operating side lower bearing seat and the transmission side lower bearing seat are fixedly connected to the connecting plate.

[0015] The upper roll assembly includes an upper roll; both sides of the upper roll are sealed and mounted in the upper bearing housing on the operating side and the upper bearing housing on the transmission side by needle roller bearings and deep groove ball bearings; the upper roll and the lower roll are centrally symmetrical.

[0016] A cover is fixedly installed on the side of the upper bearing seat on the operating side away from the lower roll; a transparent cover is fixedly installed on the side of the upper bearing seat on the transmission side away from the lower roll.

[0017] One end of the upper roller passes through the upper bearing seat and the cover on the transmission side, and is connected to the rolling drive motor.

[0018] Both the operating side upper bearing seat and the transmission side upper bearing seat are fixedly connected to the connecting plate.

[0019] A balance beam is fixedly installed on the top of the upper bearing housing on the operating side and the upper bearing housing on the transmission side. A pressure sensor is installed on the balance beam. The pressure sensor is fixedly connected to the output end of the servo electric cylinder by a hexagonal head bolt. The servo electric cylinder is fixedly installed on the top of the frame.

[0020] The ultrasonic assembly includes a flange, which is fixedly installed on the bottom of the platform; an ultrasonic transducer is fixedly installed on the bottom of the flange, and the ultrasonic transducer is electrically connected to an ultrasonic drive power supply; a stepped amplitude transformer is also installed on the flange, and a tool head is installed on the stepped amplitude transformer; the ultrasonic transducer is electrically connected to the stepped amplitude transformer; the tool head is in contact with the bottom surface of the lower bearing seat on the operating side and the bottom surface of the lower bearing seat on the transmission side.

[0021] The pulse power supply is also electrically connected to the guide component to transmit pulse current to the ultrathin strip.

[0022] The unwinding assembly includes an unwinding drum, which is connected to an unwinding motor in series; a front laser roughness measuring instrument is also installed between the unwinding drum and the frame.

[0023] The take-up assembly includes a take-up drum, which is connected to a take-up motor in series for transmission; a rear laser roughness measuring instrument is also installed between the take-up drum and the frame; both the front and rear laser roughness measuring instruments are fixedly installed on the frame.

[0024] The ultra-thin strip is wound around the unwinding drum and the winding drum, and passes through the gap between the upper and lower roll assemblies and the guide assembly.

[0025] The pneumatic device includes a drive motor, which is connected to an air compressor. The air compressor's inlet is connected to an air tank via a filter, and the air compressor's outlet is connected to the inlet of the inert gas shield via a one-way valve and a temperature-controlled throttle valve. The temperature-controlled throttle valve is electrically connected to a temperature sensor. The outlet of the inert gas shield is connected to the air tank to form a main circuit.

[0026] The air compressor and the air tank are connected by a branch circuit, and an electromagnetic overflow valve is installed on the branch circuit.

[0027] Compared with existing technologies, this invention has the following advantages and technical effects: This invention adjusts the roll gap between the upper and lower rolls, thereby changing the reduction rate of the ultra-thin strip. Ultrasonic components are installed at the bottom of the two bearing seats of the lower roll, and the amplitude of the vibration applied to the lower roll is adjusted by changing the amplitude output of the transducer of the ultrasonic components. To avoid the thermal effect generated by the strip when energized, a temperature sensor is installed at the guide roll to feed the temperature signal back to the pneumatic system, thereby changing the flow rate and further reducing the heat generated by the energization of the strip. This effectively improves the plastic deformation capacity of the ultra-thin strip, producing higher quality ultra-thin strips and solving problems such as the higher precision and thinner thickness required in ultra-thin strip processing, and the temperature rise caused by energization. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a novel rolling mill structure for ultrasonic energy field-assisted rolling of precision ultra-thin strips with an inert gas protective shield, according to the present invention.

[0030] Figure 2 This is a schematic diagram of a novel rolling mill structure for ultrasonic energy field-assisted rolling of precision ultra-thin strips without an inert gas protective shield, according to the present invention.

[0031] Figure 3 This is a front view of the novel rolling mill structure for ultrasonic energy field-assisted rolling of precision ultra-thin strips without an inert gas protective shield, according to the present invention.

[0032] Figure 4 This is a schematic diagram of the structure of the amplitude transformer of the ultrasonic device of the present invention;

[0033] Figure 5 This is a top view of the ultrasonic device of the present invention;

[0034] Figure 6 This is a bottom view of the structure of the ultrasonic device of the present invention;

[0035] Figure 7 This is a schematic diagram of the roller system of the present invention;

[0036] Figure 8 This is a schematic diagram of the internal structure of the roller system of the present invention;

[0037] Figure 9 This is a schematic diagram of the frame structure of the present invention;

[0038] Figure 10This is a schematic diagram of the pneumatic system of the present invention.

[0039] Wherein, 1 is the frame, 101 is the guide rail, 102 is the slider, 103 is the connecting plate, 104 is the platform, 105 is the inlet guide roller, 106 is the outlet guide roller, 107 is the inert gas protective cover, 108 is the temperature sensor, 109 is the pulse power supply, 2 is the rolling drive motor, 21 is the upper roll assembly, 201 is the upper roll, 202 is the needle roller bearing, 203 is the deep groove ball bearing, 204 is the soft gasket, 205 is the end cap, 206 is the upper bearing seat on the operating side, 207 is the felt, 208 is the through cover, 209 is the upper bearing seat on the drive side, 22 is the lower roll assembly, 210 is the lower roll, 211 is the lower bearing seat on the operating side, 212 is the lower bearing seat on the drive side, 213 is the shaft retaining ring, 31 is... The ultrasonic components include: 301 tool head, 302 ultrasonic transducer, 303 stepped amplitude transformer, 304 ultrasonic drive power supply, 305 flange, 306 flange fixing plate, 401 servo electric cylinder, 402 hexagonal head bolt, 403 pressure sensor, 404 balance beam, 501 unwinding drum, 502 winding drum, 503 unwinding series motor, 504 winding series motor, 505 ultra-thin strip, 506 front laser roughness measuring instrument, 507 rear laser roughness measuring instrument, 601 servo motor, 602 air compressor, 603 air tank, 604 one-way valve, 605 electromagnetic relief valve, 606 temperature control throttle valve, and 607 filter. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] like Figure 1-9 As shown, a multi-energy field assisted rolling mill for ultra-thin strip 505 includes:

[0043] The rolling device is placed inside the frame 1; the frame 1 is fixedly mounted on the platform 104; the rolling assembly includes an upper roll assembly, a lower roll assembly 22 and a guide assembly; a temperature sensor 108 is installed on the guide assembly; the temperature sensor 108 interacts with the pneumatic device; the pneumatic device is used to reduce the temperature during the ultra-thin strip rolling process.

[0044] Ultrasonic component 31, which is mounted on the rolling mill, is used to apply amplitude to the rolling mill.

[0045] The winding device includes a tape feeding assembly and a tape take-up assembly, which are located on both sides of the frame 1. The ultra-thin tape 505 is fed out by the tape feeding assembly, rolled by the rolling assembly, and then wound up by the tape take-up assembly.

[0046] In one embodiment of the present invention, the frame 1 is an integrated closed frame; a set of feeding assemblies for feeding the ultra-thin strip 505 and a set of taking up the ultra-thin strip 505 are respectively provided on both sides of the frame 1; an upper roll assembly and a lower roll assembly 22 are provided inside the frame 1, and a pressing assembly for adjusting the roll gap between the upper roll assembly and the lower roll assembly 22 is provided on the frame 1; the upper roll 201 in the upper roll assembly and the lower roll 210 in the lower roll assembly 22 are respectively driven by a rolling drive motor 2.

[0047] The frame 1 includes four columns, each of which is fixedly mounted with a guide rail 101; two sliders 102 are slidably mounted in each guide rail 101; the two sliders 102 on the same guide rail 101 are fixedly connected to the upper roll assembly and the lower roll assembly 22 respectively through a connecting plate 103; an inert gas protective cover 107 is also fixedly mounted on the outside of the column, and the inert gas protective cover 107 is connected to the pneumatic device.

[0048] The guiding assembly includes an inlet guide roller 105 and an outlet guide roller 106 mounted on the outside of the column; a temperature sensor 108 is mounted on both the inlet guide roller 105 and the outlet guide roller 106.

[0049] The lower roll assembly 22 includes a lower roll 210. Both sides of the lower roll 210 are sealed and installed in the lower bearing housing 211 on the operating side and the lower bearing housing 212 on the transmission side by needle roller bearings 202 and deep groove ball bearings 203. A cover 205 is fixedly installed on the side of the lower bearing housing 211 on the operating side away from the lower roll 210. A cover 208 is fixedly installed on the side of the lower bearing housing 212 on the transmission side away from the lower roll 210.

[0050] One end of the lower roll 210 passes through the lower bearing seat 212 on the transmission side and the cover 208, and is connected to the rolling drive motor 2; the bottom surface of the lower bearing seat 211 on the operation side and the bottom surface of the lower bearing seat 212 on the transmission side are respectively in contact with the ultrasonic component 31.

[0051] Both the operating side lower bearing housing 211 and the transmission side lower bearing housing 212 are fixedly connected to the connecting plate 103.

[0052] The upper roll assembly includes an upper roll 201; both sides of the upper roll 201 are sealed and installed in the upper bearing housing 206 on the operating side and the upper bearing housing 209 on the transmission side by needle roller bearings 202 and deep groove ball bearings 203; the upper roll 201 is centrally symmetrical with the lower roll 210;

[0053] A cover 205 is fixedly installed on the side of the upper bearing seat 206 on the operating side away from the lower roll 210; a cover 208 is fixedly installed on the side of the upper bearing seat 209 on the transmission side away from the lower roll 210.

[0054] One end of the upper roll 201 passes through the upper bearing seat 209 and the cover 208 on the transmission side, and is connected to the rolling drive motor 2 for transmission.

[0055] Both the upper bearing housing 206 on the operating side and the upper bearing housing 209 on the transmission side are fixedly connected to the connecting plate 103.

[0056] A balance beam 404 is fixedly installed on the top of the upper bearing housing 206 on the operating side and the upper bearing housing 209 on the transmission side. A pressure sensor 403 is installed on the balance beam 404. The pressure sensor 403 is fixedly connected to the output end of the servo electric cylinder 401 by a hexagonal head bolt 402. The servo electric cylinder 401 is fixedly installed on the top of the frame 1.

[0057] In a further optimized design, the upper roll assembly 21 includes an upper roll 201. The left and right ends of the upper roll 201 are transitionally fitted with needle roller bearings 202 and deep groove ball bearings 203. The deep groove ball bearings 203 contact a shaft retaining ring 213, which is interference-fitted with the upper roll 201. A soft shim 204 is positioned above the deep groove ball bearings 203. The soft shim 204 on the operating side of the upper roll 201 contacts the deep groove ball bearings 203 and the needle roller bearings 202. The soft shim 204 and the needle roller bearings 202 on the operating side of the upper roll 201 are in contact with the upper bearing housing 206 on the operating side. In a transitional fit, the upper bearing seat 206 on the operating side is in sealed contact with the upper roller 201 via felt 207. The upper bearing seat 206 on the operating side is fixedly connected to the cover 205 by bolts. The soft gasket 204 on the drive side of the upper roller 201 is in contact with the deep groove ball bearing 203 and the needle roller bearing 202. The soft gasket 204 and the needle roller bearing 202 on the drive side of the upper roller 201 are in transitional fit with the upper bearing seat 209 on the drive side. The upper bearing seat 209 on the drive side is in sealed contact with the upper roller 201 via felt 207. The upper bearing seat 209 on the drive side is fixedly connected to the cover 208 by bolts.

[0058] Further optimizing the design, the lower roll assembly 22 includes a lower roll 210. The left and right ends of the lower roll 210 are transitionally fitted with needle roller bearings 202 and deep groove ball bearings 203. A soft gasket 204 is provided above the deep groove ball bearing 203. The soft gasket 204 on the operating side of the lower roll 210 contacts the deep groove ball bearing 203 and the needle roller bearing 202. The soft gasket 204 and the needle roller bearing 202 on the operating side of the lower roll 210 are transitionally fitted with the lower bearing seat 211 on the operating side. The lower bearing seat 211 on the operating side is in sealed contact with the lower roll 210 through felt 207. The lower bearing seat 211 on the operating side is in contact with the blanking device. The cover 205 is fixedly connected by bolts. The soft gasket 204 on the drive side of the lower roller 210 contacts the deep groove ball bearing 203 and the needle roller bearing 202. The soft gasket 204 and the needle roller bearing 202 on the drive side of the lower roller 211 are transitionally fitted with the lower bearing seat 212 on the drive side. The lower bearing seat 212 on the drive side is in sealed contact with the lower roller 210 through the felt 207. The lower bearing seat 212 on the drive side is fixedly connected to the cover 208 by bolts. The bottom surfaces of the lower bearing seats 211 on the operating side and the lower bearing seats 212 on the drive side at both ends of the lower roller 210 are in contact with the tool head 301 of the ultrasonic component 31, respectively.

[0059] The scheme is further optimized by using a servo electric cylinder 401 to press down the upper bearing seat 206 on the operating side and the upper bearing seat 209 on the transmission side, and using a pressure sensor 403 to control the degree of downward pressure.

[0060] The ultrasonic assembly 31 includes a flange 305, which is fixedly installed at the bottom of the platform 104. An ultrasonic transducer 302 is fixedly installed at the bottom of the flange 305 and is electrically connected to the ultrasonic drive power supply 304. A stepped amplitude transformer 303 is also installed on the flange 305, and a tool head 301 is installed on the stepped amplitude transformer 303. The ultrasonic transducer 302 is electrically connected to the stepped amplitude transformer 303. The tool head 301 is in contact with the bottom surface of the lower bearing seat 211 on the operating side and the bottom surface of the lower bearing seat 212 on the transmission side.

[0061] The pulse power supply 109 is also electrically connected to the guide assembly to transmit pulse current to the ultrathin strip 505.

[0062] Further optimization of the scheme: the ultrasonic component affects the rolling component by applying high-frequency amplitude to the two bearing seats of the lower roll through the tool head 301.

[0063] The scheme is further optimized by providing bosses on the sides of the inlet guide roller 105 and the outlet guide roller 106, which can apply pulse current to the guide rollers through the pulse power supply 109, thereby transmitting it to the ultra-thin belt 505.

[0064] The tape unwinding assembly includes an unwinding drum 501, which is connected to an unwinding series motor 503; a front laser roughness measuring instrument 506 is also installed between the unwinding drum 501 and the frame 1.

[0065] The take-up assembly includes a take-up drum 502, which is connected to a take-up series motor 504. A rear laser roughness measuring instrument 507 is also installed between the take-up drum 502 and the frame 1. Both the front laser roughness measuring instrument 506 and the rear laser roughness measuring instrument 507 are fixedly installed on the stand 104.

[0066] The ultra-thin strip 505 is wound around the unwinding drum 501 and the winding drum 502, and passes through the gap between the upper roll assembly 21 and the lower roll assembly 22 and the guide assembly.

[0067] The unwinding assembly further optimizes the design by including an unwinding drum 501 and a winding series motor 503 for driving the unwinding drum 501. The unwinding assembly also includes a winding drum 502 and an unwinding series motor 504 for driving the winding drum 502. After the unwinding drum 501 winds out the ultra-thin strip 505, the ultra-thin strip 505 first passes through a front laser roughness measuring instrument 506, then undergoes a rolling process. After the rolling process, the ultra-thin strip 505 passes through a rear laser roughness measuring instrument 507, and finally is wound back into the winding drum 502.

[0068] The pneumatic device includes a drive motor 601, which is connected to an air compressor 602. The air inlet of the air compressor 602 is connected to an air tank 603 through a filter 607. The air outlet of the air compressor 602 is connected to the air inlet of an inert gas shield 107 through a one-way valve 604 and a temperature-controlled throttle valve 606. The temperature-controlled throttle valve 606 is electrically connected to a temperature sensor 108. The air outlet of the inert gas shield 107 is connected to the air tank 603 to form a main circuit.

[0069] There is also a branch circuit between the air compressor 602 and the air tank 603, and an electromagnetic relief valve 605 is installed on the branch circuit.

[0070] like Figure 7As shown, the pneumatic device includes an air pipe assembly, which includes a main pressure air pipe, an inlet pipe, and an exhaust pipe. The pneumatic system includes an air compressor 602, which is connected to a servo motor 601. The A end of the air compressor 602 is connected to the A end of a one-way valve 604 and the A end of a solenoid relief valve 605 via a pipe. The B end of the one-way valve 604 is connected to the A end of a temperature-controlled throttle valve 606. The B end of the temperature-controlled throttle valve 606 is connected to the A port of an inert gas protection cover 107 via a pipe. The B port of the inert gas protection cover 107 and the B end of the solenoid relief valve 605 are connected to the A port of a gas storage tank 603 via a pipe. The B port of the gas storage tank 603 is connected to the A port of a filter 607 via a pipe. The B port of the filter is connected to the B end of the air compressor 602 via a pipe.

[0071] Furthermore, the experimental methods applicable to this invention are cold rolling experiments, ultrasonic-assisted rolling experiments, electric rolling experiments, and ultrasonic-assisted electric rolling experiments.

[0072] In particular, the cold rolling test does not require the pulse power supply and ultrasonic drive power supply to be turned on.

[0073] The ultrasonic drive power supply needs to be turned on for ultrasonic-assisted rolling experiments.

[0074] The electric rolling experiment requires the introduction of inert gas and the activation of a pulse power supply;

[0075] Ultrasonic-assisted electric rolling experiments require the introduction of inert gas and the activation of the pulse power supply and ultrasonic drive power supply.

[0076] In one embodiment of the present invention, the working steps of this application are as follows:

[0077] A thin strip 505 is wound around the unwinding drum 501, and one end of the thin strip 505 is passed through the gap between the upper roll 201 and the lower roll 210 by the corresponding inlet guide roller 105 and temperature sensor 108, and then through the outlet guide roller 106 and temperature sensor 108, and fixed to the take-up drum 502.

[0078] A front laser roughness measuring instrument 506 is placed between the unwinding drum 501 and the inlet guide roller 105, and a rear laser roughness measuring instrument 507 is placed between the winding drum 502 and the outlet guide roller 106 to measure the roughness of the ultra-thin strip 505 before and after rolling.

[0079] Adjust the motor speed, turn on the unwinding series motor 503 and the winding series motor 504, apply appropriate tension to the ultra-thin strip 505, and adjust the motor speed according to the speed ratio required in the process.

[0080] Clamp the pulse current clamp of the pulse power supply onto the inlet guide roller 105 and the outlet guide roller 106, and install an inert gas protective cover 107 on the outside of the frame 1. First, introduce inert gas, and after the inert gas is full, turn on the pulse power supply switch.

[0081] Based on the initial thickness and reduction of the ultra-thin strip 505, the servo electric cylinder is adjusted to ensure that the roll gap between the upper roll 201 and the lower roll 210 meets the rolling conditions. The ultrasonic drive power supply is activated to achieve ultrasonic vibration, thereby starting the rolling drive assembly 2 and driving the upper and lower rolls to perform rolling.

[0082] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0083] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A rolling mill for rolling ultra-thin strips with multi-energy field assistance, used for ultra-thin strips (505), characterized in that, include: A rolling device, wherein the rolling device is placed inside a frame (1); the frame (1) is fixedly mounted on a platform (104); The rolling apparatus includes an upper roll assembly (21), a lower roll assembly (22), and a guide assembly; a temperature sensor (108) is installed on the guide assembly; the temperature sensor (108) interacts with a pneumatic device; the pneumatic device is used to reduce the temperature during the rolling process of the ultra-thin strip (505); An ultrasonic component (31) is mounted on the rolling device and is used to apply an amplitude to the rolling device; The winding device includes a tape feeding assembly and a tape take-up assembly, which are respectively located on both sides of the frame (1); the ultra-thin tape (505) is fed out from the tape feeding assembly, rolled by the rolling device, and then wound up by the tape take-up assembly; The frame (1) includes four columns, each of which is fixedly mounted with a guide rail (101); each of the guide rails (101) has two sliders (102) slidably mounted inside; the two sliders (102) on the same guide rail (101) are fixedly connected to the upper roll assembly (21) and the lower roll assembly (22) respectively through a connecting plate (103); an inert gas protective cover (107) is also fixedly mounted on the outside of the column, and the inert gas protective cover (107) is connected to a pneumatic device; The guiding assembly includes an inlet guide roller (105) and an outlet guide roller (106) installed on the outside of the column; the temperature sensor (108) is installed on both the inlet guide roller (105) and the outlet guide roller (106); The lower roll assembly (22) includes a lower roll (210), both sides of which are sealed and installed in the lower bearing housing (211) on the operating side and the lower bearing housing (212) on the transmission side by needle roller bearings (202) and deep groove ball bearings (203); The bottom surface of the lower bearing seat (211) on the operating side and the bottom surface of the lower bearing seat (212) on the transmission side are respectively in contact with the ultrasonic component (31); A pulse power supply (109) is also provided, which is electrically connected to the guide component and is used to transmit pulse current to the ultrathin strip (505); The pneumatic device includes a drive motor (601), which is connected to an air compressor (602). The air inlet of the air compressor (602) is connected to an air storage tank (603) through a filter (607). The air outlet of the air compressor (602) is connected to the air inlet of the inert gas shield (107) through a one-way valve (604) and a temperature-controlled throttle valve (606). The temperature-controlled throttle valve (606) is electrically connected to a temperature sensor (108). The air outlet of the inert gas shield (107) is connected to the air storage tank (603) to form a main circuit. A branch circuit is also connected between the air compressor (602) and the air tank (603), and an electromagnetic overflow valve (605) is installed on the branch circuit.

2. The rolling mill for multi-energy field assisted rolling of ultra-thin strip according to claim 1, characterized in that: A cover (205) is fixedly installed on the side of the operating side lower bearing seat (211) away from the lower roll (210); a cover (208) is fixedly installed on the side of the transmission side lower bearing seat (212) away from the lower roll (210). One end of the lower roll (210) passes through the lower bearing seat (212) and the cover (208) on the transmission side and is connected to the rolling drive motor (2) for transmission. The operating side lower bearing seat (211) and the transmission side lower bearing seat (212) are both fixedly connected to the connecting plate (103).

3. A rolling mill for rolling ultra-thin strips with multi-energy field assistance according to claim 2, characterized in that: The upper roll assembly (21) includes an upper roll (201); both sides of the upper roll (201) are sealed and installed in the upper bearing housing (206) on the operating side and the upper bearing housing (209) on the transmission side by needle roller bearings (202) and deep groove ball bearings (203); the upper roll (201) is symmetrical to the lower roll (210) at the center; A cover (205) is fixedly installed on the side of the upper bearing seat (206) on the operating side away from the upper roller (201); a cover (208) is fixedly installed on the side of the upper bearing seat (209) on the transmission side away from the upper roller (201); One end of the upper roll (201) passes through the upper bearing seat (209) and the cover (208) on the transmission side and is connected to the rolling drive motor (2) for transmission. The operating side upper bearing seat (206) and the transmission side upper bearing seat (209) are both fixedly connected to the connecting plate (103).

4. A rolling mill for rolling ultra-thin strips with multi-energy field assistance according to claim 3, characterized in that: A balance beam (404) is fixedly installed on the top of the upper bearing seat (206) on the operating side and the upper bearing seat (209) on the transmission side. A pressure sensor (403) is installed on the balance beam (404). The pressure sensor (403) is fixedly connected to the output end of the servo electric cylinder (401). The servo electric cylinder (401) is fixedly installed on the top of the frame (1).

5. A rolling mill for rolling ultra-thin strips with multi-energy field assistance according to claim 2, characterized in that: The ultrasonic component (31) includes a flange (305) which is fixedly installed at the bottom of the platform (104); an ultrasonic transducer (302) is fixedly installed at the bottom of the flange (305) and is electrically connected to an ultrasonic drive power supply (304); a stepped amplitude transformer (303) is also installed on the flange (305) and a tool head (301) is installed on the stepped amplitude transformer (303); the ultrasonic transducer (302) is electrically connected to the stepped amplitude transformer (303); the tool head (301) is in contact with the bottom surface of the operating side lower bearing seat (211) and the bottom surface of the transmission side lower bearing seat (212).

6. A rolling mill for rolling ultra-thin strips with multi-energy field assistance according to claim 1, characterized in that: The tape unwinding assembly includes an unwinding drum (501), which is connected to an unwinding series motor (503) for transmission; a front laser roughness measuring instrument (506) is also installed between the unwinding drum (501) and the frame (1). The take-up assembly includes a take-up drum (502), which is connected to a take-up series motor (504) for transmission; a rear laser roughness measuring instrument (507) is also installed between the take-up drum (502) and the frame (1); the front laser roughness measuring instrument (506) and the rear laser roughness measuring instrument (507) are both fixedly installed on the stand (104); The ultrathin strip (505) is wound around the unwinding drum (501) and the winding drum (502), and passes through the gap between the upper roll assembly (21) and the lower roll assembly (22) and the guide assembly.

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