A device for producing extremely thin metal strips by combined forming and rolling with same-side transmission

Abstract

The present invention relates to a same-side transmission combined forming rolling production equipment for metal ultra-thin strips, comprising an unwinding and rewinding device, a thickness gauge, a guide device, a main rolling mill, a guide device, a thickness gauge and an unwinding and rewinding device which are sequentially arranged on an oil tank from left to right. Roll systems symmetrically arranged about the steel strip are arranged on the upper and lower sides of the main rolling mill, each roll system comprises an inner working roll and an outer supporting roll, and the circumscribed working rolls and supporting rolls are synchronously rotated by the friction between the rolls, and the guide devices on both sides of the main rolling mill are S-shaped rolls; the equipment production line has high rigidity, and the equipment as a whole has the advantages of high control accuracy, long roll service life, fewer plate defects and less space occupied, and is suitable for producing metal ultra-thin strips of ≤10μm.

Description

Technical Field

[0001] The invention belongs to the technical field of plate and strip rolling, and relates to a same-side transmission combined forming and rolling device for producing extremely thin metal strips. Background Art

[0002] With the advancement of science and technology, a large number of devices are gradually moving towards miniaturization and lightweight development; at the same time, in recent years, the continuous improvement and progress of electronic information technology has put forward higher requirements for electronic equipment components that use electronic information technology. If you want to achieve the miniaturization and lightweight of the above-mentioned equipment and improve the performance of electronic components themselves, you can make further upgrades from the raw materials used to produce these devices. High-performance ultra-thin metal strips are important raw materials for the production of the above-mentioned equipment and are also the first choice for solving these problems.

[0003] Some domestic universities and research institutes have conducted research to produce efficient and high-performance ultra-thin metal strips. The concept of asynchronous rolling was first proposed by the ultra-thin strip team of Northeastern University, and the combined forming rolling mill was manufactured to produce the most ideal ultra-thin metal strips. This technology not only breaks through the minimum rollable thickness, but also produces metal strips with good surface quality and performance. The combined forming equipment has become the main idea for the production of ultra-thin strips in China.

[0004] However, the current domestic combined forming rolling mill technology is not yet mature, and there are still great controversies about the stability of the rolling mill, the accuracy of the production line, the service life of the equipment and the plate shape of the ultra-thin metal strip. Further improvements are needed to expand the entire domestic and foreign markets. In order to solve the above problems, it is proposed to improve the existing combined forming rolling mill. Summary of the invention

[0005] In view of this, in order to solve the problems existing in the above-mentioned existing ultra-thin metal strip rolling process, the present invention provides a same-side transmission combined forming rolling production metal ultra-thin strip equipment. The equipment production line has high rigidity, and the equipment as a whole has the advantages of high control accuracy, long roll service life, fewer plate defects and less space occupied, and is suitable for the production of ultra-thin metal strips ≤10µm.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A same-side transmission combined forming and rolling equipment for producing extremely thin metal strips, comprising an unwinding and rewinding device, a thickness gauge, a guide device, a main rolling mill, a guide device, a thickness gauge and an unwinding and rewinding device arranged on an oil tank from left to right in sequence, the main rolling mill comprising an upper frame and a lower frame symmetrical in upper and lower directions, four hydraulic struts are fixedly arranged at the four ends of the top of the upper frame, four columns are fixedly arranged at the four ends of the top of the lower frame, one end of the four columns slides through the through holes at the four ends of the upper frame and is fixedly connected to the hydraulic struts; an upper support roller bearing seat is movably connected inside the upper frame, an upper working roller bearing seat is movably connected below the upper support roller bearing seat, the upper support roller bearing seat is rollingly connected to the upper support roller via a bearing, the upper working roller bearing seat is connected to the upper support roller via a shaft The upper working roll is rollingly connected to the bearing, and the lower support roll bearing seat is movably connected in the lower frame. The lower support roll bearing seat is movably connected to the lower working roll bearing seat above. The lower support roll bearing seat is rollingly connected with the lower support roll through the bearing. The lower working roll bearing seat is rollingly connected with the lower working roll for differential rolling of metal strips with the upper working roll through the bearing. Four first spring clips are symmetrically provided at both ends of the bottom of the upper working roll bearing seat, and one end of the four first spring clips is movably connected to the top of the lower working roll bearing seat. Four second spring clips are symmetrically provided at both ends of the bottom of the lower working roll bearing seat, and one end of the four second spring clips is movably connected to the top of the lower support roll bearing seat. The guide devices on both sides of the main rolling mill are S-shaped rollers.

[0008] Furthermore, a frame cover is fixedly installed on the upper frame, and the frame cover is connected to the upper support roller bearing seat through a bearing. A card with a threaded hole is fixedly installed on the frame cover and the upper support roller bearing seat. An inverted trapezoidal through groove is provided on the oil tank below the lower support roller bearing seat. A pad matching the through groove is slidably provided at the bottom of the lower support roller bearing seat. A turntable with a handle is fixedly installed at the front end of the pad, and a lifting device matching the turntable is provided inside the pad. Beneficial effect: The frame cover and the upper support roller bearing seat are fixedly connected by bolts inserted into the threaded holes. The pad can be lifted and lowered in the through groove by rotating the turntable, which is convenient for the entire extraction and replacement of the lower support roller bearing seat, the lower support roller system, the lower working roller bearing seat, the lower working roller, the upper working roller bearing seat, and the upper working roller.

[0009] Furthermore, an oil spray device is fixedly provided on both sides of the bottom of the inner wall of the upper frame near the upper working roll bearing seat and on both sides of the top of the inner wall of the lower frame near the lower working roll bearing seat. The oil spray device includes an oil pipe and an oil nozzle, and the oil pipe is connected to the oil tank. Beneficial effect: When the metal pole strip is rolled, the valve of the oil spray device is opened, and the rolling oil is directly sprayed on the metal pole strip through the oil pipe and the oil nozzle. The rolling oil plays a lubricating role, ensures the surface quality of the metal pole strip, and improves the performance of the strip.

[0010] Furthermore, one end of the upper working roller is fixedly connected to the output shaft of the upper main motor through the transmission shaft and the first reduction box, one end of the lower support roller is fixedly connected to the output shaft of the lower main motor through the transmission shaft and the second reduction box, a main motor base is fixedly installed on one side of the top of the oil tank, the bottom of the upper main motor and the first reduction box is fixedly connected to the top of the main motor base by screws, and the bottom of the lower main motor and the second reduction box is fixedly connected to the inside of the main motor base by screws.

[0011] Furthermore, the S-shaped rollers include the first straightening roller, the second straightening roller and the third straightening roller in sequence, and the metal strip passes through the top of the first straightening roller, the bottom of the second straightening roller and the top of the third straightening roller in sequence. Beneficial effect: The rollers used in the first straightening roller, the second straightening roller and the third straightening roller are rubber rollers, which effectively reduce the "C" warping and other plate shape problems, and will not damage the surface of the metal strip.

[0012] Furthermore, thickness gauges are provided on both sides of the guide device, and slide rails are provided at the bottom of the thickness gauges. Beneficial effect: the thickness gauges can be easily moved to detect the rolled thickness of the metal strip.

[0013] Furthermore, the unwinding and rewinding devices include a reel, a reduction box and a reduction motor. The output end of the reduction motor is rotationally connected to one side of the reduction box through a coupling, and the other side of the reduction box is rotationally connected to one end of the reel through an internal gear shaft.

[0014] Furthermore, the ironing device includes an ironing roller and an ironing bracket, and the ironing bracket drives the ironing roller by hydraulic pressure. Beneficial effect: When working, the ironing roller is tightly pressed on the reel of the unwinding and rewinding device, and the ironing roller acts on the reel, which can effectively reduce the plate shape problems such as rib marks on the metal strip.

[0015] Furthermore, a guide roller is arranged between the unwinding and rewinding device and the corresponding thickness gauge. Beneficial effect: The guide roller can guide the metal strip on the rolling line, effectively reducing the "C" warping and other plate shape problems, and will not damage the surface of the metal strip.

[0016] Furthermore, two positioning blocks for fixing the upper frame and the upper support roller bearing seat, and the lower frame and the lower support roller bearing seat are symmetrically slidably arranged on the front and back sides of the upper frame and the lower frame. Beneficial effect: The positioning blocks are used to realize the fixed connection between the upper frame and the upper support roller bearing seat, and the fixed connection between the lower frame and the lower support roller bearing seat. Opening the positioning blocks facilitates the disassembly and assembly of the upper support roller, the upper working roller, the lower support roller and the lower working roller.

[0017] Furthermore, the upper main motor, the lower main motor and the reduction motor are all high-precision DC servo motors.

[0018] The beneficial effects of the present invention are:

[0019] 1. The same-side transmission combined forming rolling production equipment for metal ultra-thin strips disclosed in the present invention has one end of the four-end column on the top of the lower frame passing through the through hole at the corresponding position of the upper frame and connected to the hydraulic support. When the hydraulic system is started, the upper frame moves downward along the column to provide high-precision rolling force to the entire transmission system. The transmission system is composed of an upper working roll driven by an upper main motor, a lower support roll driven by a lower main motor, and an upper support roll and a lower working roll of a passive roll. During the rolling process, the lower support roll drives the lower working roll to rotate. When the upper and lower main motors provide different powers, the rotation speeds of the upper and lower working rolls are not equal, forming asynchronous rolling. Asynchronous rolling can break through the minimum rollable thickness of the metal strip and improve rolling efficiency; the motor drives the support roll, which can reduce the deflection of the working roll and extend the service life of the working roll. The entire production line is built on the oil tank, which saves factory space and reduces the installation cost of the equipment; the two main motors are placed on the same side of the frame to facilitate the replacement of the working roll.

[0020] 2. The same-side transmission combined forming rolling production equipment for producing ultra-thin metal strips disclosed in the present invention adopts the same-side transmission mode, which is convenient for the rolling mill to replace the working rolls during production. Asynchronous transmission is adopted, which has a strong thinning ability and high production efficiency for metal strips. Four-column hydraulic pressing is adopted. When pressing down, the hydraulic system drives the entire upper frame to act on the rolling system, and the rolling force is transmitted to the thin strip evenly and accurately; the four columns control the overall upper frame to press down, which is convenient for controlling the change of the thin strip plate shape during the rolling process. Using one working roll transmission and one supporting roll transmission can reduce the deflection of the working roll during rolling and increase the service life of the working roll. The entire rolling line uses S-shaped rollers, guide rollers, ironing rollers and other devices, which can effectively reduce the "C" warping, rib marks and other plate defects of the ultra-thin metal strips.

[0021] 3. The same-side transmission combined forming rolling production equipment for metal ultra-thin strips disclosed in the present invention uses high-precision servo motors for the upper main motor, the lower main motor and the reduction motor, which can accurately control the coordination between the front and rear tension acting on the metal thin strip and the instantaneous speed of the thin strip movement when the rolling mill starts and stops, effectively reducing the situation of broken strips; accurate control is conducive to the production of extremely thin metal thin strips by the rolling mill. The entire production line is built on the oil tank, so that the entire production line has less space; at the same time, the rigidity of the entire production line is improved, so that the entire production line has higher precision; it can also reduce the cost of equipment installation.

[0022] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0024] Figure 1 The schematic diagram of the structure of the equipment for producing ultra-thin metal strips by the same-side transmission combined forming and rolling of the present invention Figure 1 ;

[0025] Figure 2 The schematic diagram of the structure of the equipment for producing ultra-thin metal strips by the same-side transmission combined forming and rolling of the present invention Figure 2 ;

[0026] Figure 3 The schematic diagram of the structure of the equipment for producing ultra-thin metal strips by the same-side transmission combined forming and rolling of the present invention Figure 3 ;

[0027] Figure 4 A top view of the same-side transmission combined forming and rolling equipment for producing ultra-thin metal strips according to the present invention;

[0028] Figure 5 For the present invention Figure 1 Roll system diagram of working rolls and backup rolls in the main rolling mill;

[0029] Figure 6 For the present invention Figure 5 A partial enlarged view of the middle part;

[0030] Figure 7 This is a cross-sectional view of the main rolling mill in the same-side transmission combined forming rolling equipment for producing ultra-thin metal strips of the present invention.

[0031] Figure numerals: upper frame 1, frame cover 11, upper support roller bearing seat 12, upper support roller 13, upper working roller bearing seat 14, upper working roller 15, first reduction gearbox 16, upper main motor 17, first spring buckle 18, lower frame 2, lower support roller bearing seat 21, lower support roller 22, lower working roller bearing seat 23, lower working roller 24, second reduction gearbox 25, lower main motor 26, column 27, hydraulic support 28, second spring buckle 29, oil tank 3, main motor base 4, S-shaped roller 5, first straightening roller 51, second straightening roller 52, third straightening roller 53, thickness gauge 6, unwinding device 7, reel 71, reduction gearbox 72, reduction motor 73, ironing device 8, ironing roller 81, ironing bracket 82, oil injection device 9, oil pipe 91, oil nozzle 92, guide roller 10, positioning block 101, cushion block 102. DETAILED DESCRIPTION

[0032] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0033] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0034] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] like Figures 1 to 7 The same-side transmission combined forming rolling production equipment for extremely thin metal strips shown in the figure includes an unwinding and rewinding device 7, a thickness gauge 6, a guide device, a main rolling mill, a guide device, a thickness gauge 6 and an unwinding and rewinding device 7 arranged on the oil tank 3 from left to right. The main rolling mill is provided with roller systems symmetrically arranged about the steel strip on the upper and lower sides. Each roller system includes an inner working roller and an outer supporting roller. The tangential working roller and the supporting roller rotate synchronously through the friction between the rollers.

[0036] The main rolling mill includes an upper frame 1 and a lower frame 2 which are symmetrical in upper and lower directions. Four hydraulic struts 28 are fixedly provided at the four ends of the top of the upper frame 1, and four upright posts 27 are fixedly provided at the four ends of the top of the lower frame 2. One end of the four upright posts 27 slides through the through holes at the four ends of the upper frame 1 and is fixedly connected to the hydraulic struts 28.

[0037] The upper support roller bearing seat 12 is movably connected inside the upper frame 1, and pressure sensors are arranged on both sides of the top of the upper support roller bearing seat 12. The upper working roller bearing seat 14 is movably connected below the upper support roller bearing seat 12, the upper support roller 13 is connected to the upper support roller 13 through the bearing rolling inside the upper support roller bearing seat 12, and the upper working roller 15 is connected to the upper working roller 15 through the bearing rolling inside the upper working roller bearing seat 14, and one end of the upper working roller 15 is fixedly connected to the output shaft of the upper main motor 17 through the transmission shaft and the first reduction box 16.

[0038] A frame cover 11 is fixedly installed on the upper frame 1, and clamping plates with threaded holes are fixedly installed outside the frame cover 11 and the upper support roller bearing seat 12. The frame cover 11 and the upper support roller bearing seat 12 are fixedly connected by bolts inserted in the threaded holes, and springs are sleeved on the bolts in the threaded holes. Four first spring buckles 18 are symmetrically provided at both ends of the bottom of the upper working roll bearing seat 14, one end of the four first spring buckles 18 is movably connected to the top of the lower working roll bearing seat 23, and four second spring buckles 29 are symmetrically provided at both ends of the bottom of the lower working roll bearing seat 23, one end of the four second spring buckles 29 is movably connected to the top of the lower support roll bearing seat 21, and an inverted trapezoidal through groove is provided on the oil tank 3 below the lower support roll bearing seat 21, and a pad 102 adapted to the through groove is slidably provided at the bottom of the lower support roll bearing seat 21, a turntable with a handle is fixedly installed at the front end of the pad 102, and a lifting device adapted to the turntable is provided in the pad 102, and the pad 102 can be lifted and lowered in the through groove by rotating the turntable, so that the lower support roll bearing seat 21, the lower support roll 22, the lower working roll bearing seat 23, the lower working roll 24, the upper working roll bearing seat 14, and the upper working roll 15 are convenient for extraction and replacement.

[0039] Oil spray devices 9 are fixedly provided on both sides of the bottom of the inner wall of the upper frame 1 near the upper working roll bearing seat 14 and on both sides of the top of the inner wall of the lower frame 2 near the lower working roll bearing seat 23. The oil spray device 9 includes an oil pipe 91 and an oil nozzle 92. The oil pipe 91 is connected to the oil tank 3. When the metal strip is rolled, the valve of the oil spray device 9 is opened, and the rolling oil is directly sprayed on the metal strip through the oil pipe 91 and the oil nozzle 92. The rolling oil plays a lubricating role, ensures the surface quality of the metal strip, and improves the performance of the strip.

[0040] The lower support roller bearing seat 21 is movably connected inside the lower frame 2, and the lower working roller bearing seat 23 is movably connected above the lower support roller bearing seat 21. The lower support roller 22 is rollingly connected to the lower support roller 22 inside the lower support roller bearing seat 21 through bearings, and the lower working roller bearing seat 23 is rollingly connected to the lower working roller 24 through bearings. One end of the lower support roller 22 is fixedly connected to the output shaft of the lower main motor 26 through a transmission shaft and a second reduction box 25.

[0041] A main motor base 4 is fixedly installed on one side of the top of the oil tank 3, the upper main motor 17 and the bottom of the first reduction box 16 are fixedly connected to the top of the main motor base 4 by screws, and the lower main motor 26 and the bottom of the second reduction box 25 are fixedly connected to the inside of the main motor base 4 by screws.

[0042] On the top of the oil tank 3, S-shaped rollers 5, thickness gauges 6, guide rollers 10, unwinding and rewinding devices 7 and ironing devices 8 are symmetrically arranged on both sides of the lower frame 2. The guide devices on both sides of the main rolling mill are S-shaped rollers 5, which include the first straightening roller 51, the second straightening roller 52 and the third straightening roller 53 in sequence. The metal strip passes through the top of the first straightening roller 51, the bottom of the second straightening roller 52 and the top of the third straightening roller 53 in sequence. The rollers used in the first straightening roller 51, the second straightening roller 52 and the third straightening roller 53 are rubber rollers, which effectively reduce the "C" warping and other plate shape problems, and will not damage the surface of the metal strip.

[0043] On both sides of the guide device are thickness gauges 6, and a slide rail is provided at the bottom of the thickness gauge 6 to facilitate the movement of the thickness gauge 6 to detect the rolled thickness of the metal strip. On both sides of the guide device are unwinding and winding devices 7 of the same structure. The device of the present invention is a reversible rolling device. The unwinding and winding device 7 changes depending on the rolling direction. When the rolling direction is from left to right, the unwinding and winding device 7 on the left is used as an unwinding device, and the unwinding and winding device 7 on the right is used as a winding device; when the rolling direction is from right to left, the unwinding and winding device 7 on the left is used as a winding device, and the unwinding and winding device 7 on the right is used as an unwinding device.

[0044] The unwinding and rewinding devices 7 each include a reel 71, a reduction box 72 and a reduction motor 73. The output end of the reduction motor 73 is rotationally connected to one side of the reduction box 72 through a coupling, and the other side of the reduction box 72 is rotationally connected to one end of the reel 71 through an internal gear shaft. An ironing device 8 is provided on the outside of the unwinding and rewinding devices 7. Each ironing device 8 includes an ironing roller 81 and an ironing bracket 82. The ironing bracket 82 drives the ironing roller 81 through hydraulic pressure. When working, the ironing roller 81 is tightly pressed on the reel 71 of the unwinding and rewinding device 7. With the ironing roller 81 acting on the reel 71, the plate shape problems such as rib marks on the metal strip can be effectively reduced.

[0045] A guide roller 10 is arranged between the unwinding and rewinding device 7 and the corresponding thickness gauge 6. The guide roller 10 is a rubber roller, which guides the metal strip on the rolling line, effectively reducing plate shape problems such as "C" warping, and will not damage the surface of the metal strip.

[0046] Two positioning blocks 101 are symmetrically slidably provided on the front and back of the upper frame 1 and the lower frame 2, and the positioning blocks 101 are used to realize the fixed connection between the upper frame 1 and the upper support roller bearing seat 12, and the fixed connection between the lower frame 2 and the lower support roller bearing seat 21. Opening the positioning blocks 101 facilitates the disassembly and assembly of the upper support roller 13, the upper working roller 15, the lower support roller 22 and the lower working roller 24.

[0047] The upper main motor 17, the lower main motor 26 and the reduction motor 73 are all high-precision DC servo motors.

[0048] The same side transmission combination forming rolling production metal thin strip equipment, the transmission principle during rolling is as follows Figure 5 The specific steps are as follows:

[0049] S1. Loading: The raw material is wound onto the reel 71 of the unwinding and rewinding device 7 on the left side in the front view through the unwinding machine. When loading, the ironing rollers 81 of the ironing devices 8 on the outermost sides of the oil tank 3 are raised to facilitate loading. Since the equipment of the present invention is a reversible rolling equipment, the two unwinding and rewinding devices 7 are changed according to the rolling direction. When the rolling direction is from left to right, the unwinding and rewinding device 7 on the left is used as an unwinding device, and the unwinding and rewinding device 7 on the right is used as a rewinding device; when the rolling direction is from right to left, the unwinding and rewinding device 7 on the left is used as a rewinding device, and the unwinding and rewinding device 7 on the right is used as an unwinding device.

[0050] S2, Strip threading: The free end of the raw material on the reel 71 of the left unwinding device is passed through the top of the left guide roller 10, the top of the first straightening roller 51 on the left, the bottom of the second straightening roller on the left, the top of the third straightening roller 53 on the left, and then through the gap between the upper working roller 15 and the lower working roller 24. The strip threading on the right side after passing through the gap is symmetrical to the left side until the free end of the raw material sticks to the reel 71 of the right winding device and is wound for more than two weeks to ensure that the strip will not fall off during pre-stretching. The strip passing through the S-shaped roller 5 and the guide roller 10 can effectively reduce the "C" warping and other plate shape problems; in order not to affect the strip threading and ensure the accuracy of the two thickness gauges 6, the thickness gauge 6 slides to the side away from the metal strip through the slide rail during the strip threading.

[0051] S3, pre-tensioning: through the external control system, the reduction motor 73 of the unwinding device and the winding device is started, and a small tension is set at both ends so that the metal strip is stretched under the action of tension but will not break. The metal strip after tensioning is straightened.

[0052] S4, set rolling force: start the hydraulic system in the four hydraulic supports 28 at the four ends of the top of the upper frame 1, the upper frame 1 drives the upper support roller bearing seat 12 and the upper support roller 13 to move downward along the column 27, the upper support roller bearing seat 12 and the upper working roller bearing seat 14 contact and continue to move downward until the upper support roller 13, the upper working roller 15, the lower working roller 24, and the lower support roller 22 contact each other, and the pressure sensor displays the preset pressure, and the pressure change range is about 50kg. All the first spring buckles 18 and the second spring buckles 29 between the upper working roller bearing seat 14, the lower working roller bearing seat 23 and the lower support roller bearing seat 21 are in a tightened state.

[0053] S5. Setting the tension: After the rolling force is set, increase the power of the deceleration motor 73 of the unwinding device and the winding device so that the tensions on both sides reach the preset front tension and rear tension respectively. The winding device provides the front tension, and the unwinding device provides the rear tension.

[0054] S6. Preparation before rolling: After setting the front and rear tensions and rolling force, the two thickness gauges 6 slide to this end of the metal strip through the slide rails, and display the real-time strip thickness on the external display screen; turn on the switch of the oil spray device 9, and the rolling oil is directly sprayed on the metal strip through the oil pipe 91 and the oil nozzle 92. The rolling oil plays a lubricating role to ensure the surface quality of the metal strip and improve the performance of the strip. The outermost ironing devices 8 on both sides of the oil tank 3 are started. The ironing rollers 81 are hydraulically driven by the ironing brackets 82 and are tightly pressed against the reels 71 of the unwinding device and the winding device. The ironing rollers 81 act on the reels 71, which can effectively reduce the plate shape problems such as rib marks on the metal strip.

[0055] S7, Strip rolling: Start the upper main motor 17 and the lower main motor 26. The upper main motor 17 provides a rotation speed to the upper working roll 15 through the transmission shaft and the first reduction box 16. The lower main motor 26 provides a rotation speed to the lower support roll 22 through the transmission shaft and the second reduction box 25. The lower support roll 22 drives the lower working roll 24 to rotate; the upper main motor 17 drives the upper working roll 15 to rotate, and the lower main motor 26 drives the lower support roll 22 to rotate. The support roll has a large diameter and thus a large rigidity, so the disturbance of the support roll is small during operation, which reduces the disturbance of the entire transmission system and prolongs the life of the working roll and the support roll; just started , the rotation speeds of the upper working roll 15 and the lower working roll 24 are the same. After 30 seconds of stable operation, one working roll is set as the reference roll and the speed ratio is set. At this time, the ratio of the rotation speed of the other working roll to the rotation speed of the reference roll is the speed ratio, and the metal strip starts to be asynchronously rolled. The speed ratio range is 1.1~1.5; the preset rolling force will deviate during rolling, and the thin strip will have plate shape problems. It is necessary to control the four ends of the upper frame 1 by controlling the four columns 27 and the hydraulic support 28 to finely adjust the rolling force acting on the thin strip until the thin strip no longer has plate shape; stop rolling when there are a few turns of metal strip left on the unwinding device reel 71.

[0056] S8. Reversible rolling: After rolling stops, the rolling direction is changed, the front and rear tensions and rolling force are reset, and the "thin strip rolling" steps are repeated until the metal strip reaches the preset thickness.

[0057] S9, stop: when the metal strip reaches the preset thickness, stop the upper main motor 17, the lower main motor 26, the reduction motor 73 of the unwinding device and the winding device, and the oil injection device 9, and the metal strip returns to the relaxed state. Restart the hydraulic support 28, and the upper frame 1 drives the upper support roller bearing seat 12 and the upper support roller 13 to move upward along the column 27 until they return to the position before rolling, and then lift the ironing roller 81.

[0058] S10, coiling and storage: Cut the metal strip on the reel 71 of the last winding device, connect the free end to the coiler, start the coiler until the thin strip on the reel 71 is completely coiled, remove the tail and pack it, and then put it into storage after labeling.

[0059] S11, roll replacement: In order to ensure the surface quality of the next rolled strip, the working rolls need to be replaced in time, and the replaced work rolls need to be sharpened in time. After the rolling mill stops, slide the eight positioning blocks 101 of the upper frame 1 and the lower frame 2 to both sides, remove the transmission shaft connected to one end of the upper working roll 15 and the lower support roll 22, shake the turntable handle at the front end of the pad 102, and in the transmission system, except for the upper support roll 13 and the upper support roll bearing seat 12, which are suspended by the action of the bolts, the remaining part moves downward with the pad 102 until it reaches the lower limit position of the pad 102, and then the remaining part is pulled out, and the working roll is replaced manually and installed according to the original structure and pushed back, and the turntable at the front end of the pad 102 is shaken again to adjust the rolling line height, and the positioning block 101 is restored, and the two transmission shafts are reconnected to the upper working roll 15 and the lower support roll 22.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A same-side transmission combined forming and rolling equipment for producing ultra-thin metal strips, characterized in that: It includes an unwinding and rewinding device, a thickness gauge, a guide device, a main rolling mill, a guide device, a thickness gauge and an unwinding and rewinding device which are arranged on the oil tank from left to right. The main rolling mill includes an upper frame and a lower frame which are symmetrical from top to bottom. Four hydraulic supports are fixedly arranged at the four ends of the top of the upper frame, and four columns are fixedly arranged at the four ends of the top of the lower frame. One end of the four columns slides through the through holes at the four ends of the upper frame and is fixedly connected to the hydraulic supports; the upper support roller bearing seat is movably connected inside the upper frame, and the upper working roller bearing seat is movably connected below the upper support roller bearing seat. The upper support roller bearing seat is rollingly connected to the upper support roller through bearings, and the upper working roller bearing seat is rollingly connected to the upper working roller through bearings. The lower support roller bearing seat is movably connected inside the frame, the lower working roller bearing seat is movably connected above the lower support roller bearing seat, the lower support roller is rollingly connected inside the lower support roller bearing seat through bearings, the lower working roller for rolling the metal strip with the upper working roller at a differential speed is rollingly connected inside the lower working roller bearing seat through bearings, four first spring buckles are symmetrically arranged at both ends of the bottom of the upper working roller bearing seat, one end of the four first spring buckles is movably connected to the top of the lower working roller bearing seat, four second spring buckles are symmetrically arranged at both ends of the bottom of the lower working roller bearing seat, one end of the four second spring buckles is movably connected to the top of the lower support roller bearing seat, and the guide devices on both sides of the main rolling mill are S-shaped rollers; The S-shaped rollers include a first straightening roller, a second straightening roller and a third straightening roller in sequence, and the metal strip passes through the top of the first straightening roller, the bottom of the second straightening roller and the top of the third straightening roller in sequence; One end of the upper working roll is fixedly connected to the output shaft of the upper main motor through a transmission shaft and a first reduction box, and one end of the lower support roll is fixedly connected to the output shaft of the lower main motor through a transmission shaft and a second reduction box.

2. The same-side transmission combined forming and rolling equipment for producing ultra-thin metal strips as claimed in claim 1, characterized in that: A frame cover is fixedly installed on the upper frame, and a clamping plate with threaded holes is fixedly installed on the frame cover and the outer side of the upper support roller bearing seat. An inverted trapezoidal through groove is provided on the oil tank below the lower support roller bearing seat, and a pad matching the through groove is slidably provided at the bottom of the lower support roller bearing seat, a turntable with a handle is fixedly installed at the front end of the pad, and a lifting device matching the turntable is provided in the pad.

3. The same-side transmission combined forming and rolling equipment for producing ultra-thin metal strips as claimed in claim 1, characterized in that: Oil spray devices are fixedly provided on both sides of the bottom inner wall of the upper frame close to the upper working roll bearing seat and on both sides of the top inner wall of the lower frame close to the lower working roll bearing seat. The oil spray devices include oil pipes and oil nozzles, and the oil pipes are connected to the oil tank.

4. The same-side transmission combined forming and rolling equipment for producing ultra-thin metal strips as claimed in claim 2, characterized in that: A main motor base is fixedly installed on one side of the top of the oil tank, the upper main motor and the bottom of the first reduction box are fixedly connected to the top of the main motor base by screws, and the lower main motor and the bottom of the second reduction box are fixedly connected to the inside of the main motor base by screws.

5. The same-side transmission combined forming and rolling equipment for producing ultra-thin metal strips as claimed in claim 1, characterized in that: The guide device has thickness gauges on both sides, and a slide rail is arranged at the bottom of the thickness gauge.

6. The same-side transmission combined forming and rolling equipment for producing ultra-thin metal strips as claimed in claim 1, characterized in that: The unwinding and rewinding devices all include a reel, a reduction box and a reduction motor. The output end of the reduction motor is rotationally connected to one side of the reduction box through a coupling, and the other side of the reduction box is rotationally connected to one end of the reel through an internal gear shaft.

7. The same-side transmission combined forming and rolling equipment for producing ultra-thin metal strips as claimed in claim 1, characterized in that: It also includes an ironing device, which includes an ironing roller and an ironing bracket, and the ironing bracket drives the ironing roller through hydraulic pressure.

8. The same-side transmission combined forming and rolling equipment for producing ultra-thin metal strips as claimed in claim 1, characterized in that: A guide roller is arranged between the unwinding and rewinding device and the corresponding thickness gauge.

9. The same-side transmission combined forming and rolling equipment for producing ultra-thin metal strips as claimed in claim 1, characterized in that: The front and back sides of the upper frame and the lower frame are symmetrically and slidably provided with two positioning blocks for fixing the upper frame and the upper support roller bearing seat, and the lower frame and the lower support roller bearing seat.

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