Metal rolling device capable of controlling thickness in real time
By setting a thickness sensor in the metal rolling device to measure the rolling roll gap in real time and perform real-time adjustment, the problem of gap adjustment lag during the rolling process in the prior art is solved, and the product yield is significantly improved.
Patent Information
- Application Number
- CN202411901132.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-04-18
AI Technical Summary
The prior art is difficult to detect and adjust the roll gap in real time during the rolling process, resulting in a high production yield rate.
A metal rolling device with real-time thickness control is designed to directly measure the rolling roll gap by setting a thickness sensor on the rolling mill bracket, and adjust the rolling roll gap in real time using real-time data.
Real-time detection and adjustment of rolling roll gaps is realized, greatly reducing the generation of defective products and improving the yield of production.
Smart Images
Figure CN119839066A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of metal strip rolling, in particular to a metal rolling device with real-time thickness control. Background Art
[0002] Rolling is a metal processing method that allows metal materials to pass through the gap between a pair of rotating rollers, so that the metal materials are squeezed by the rollers and the thickness becomes smaller, and products of different shapes can be obtained by adjusting the shape and gap of the rollers. During the rolling process, it is usually necessary to detect and adjust the roller gap in real time to prevent the roller gap from gradually increasing due to the reaction force. The existing technology mainly uses a method of setting a thickness gauge at the outlet of the rolling device to measure the thickness of the rolled product, and then indirectly measuring the roller gap. However, since this method measures the thickness of the product that has been produced and then adjusts the roller gap based on feedback, a certain number of unqualified products have been produced when it is found that the roller gap needs to be adjusted. In order to solve this problem, there is an urgent need for a rolling device that can directly detect the roller gap and make real-time adjustments. Summary of the invention
[0003] Based on this, an object of the present invention is to provide a metal rolling device with real-time thickness control.
[0004] A metal rolling device with real-time thickness control, comprising a rolling mill support and a rolling mechanism, wherein the rolling mill support comprises a first support and a second support; the rolling mechanism comprises an upper active roller, a lower active roller, an upper driven roller and a lower driven roller, wherein the upper active roller and the lower active roller are mounted on the first support and the second support via an active roller connecting member; the upper driven roller and the lower driven roller are mounted on the first support and the second support via a driven roller connecting member, wherein the upper driven roller abuts against the upper active roller, and the lower driven roller abuts against the lower active roller, and a gap is formed between the upper driven roller and the lower driven roller;
[0005] It also includes an adjusting mechanism, which includes a detection unit, a driving unit and a control unit. The detection unit includes a first thickness sensor, which is installed on one side of the rolling mill support and faces the gap between the upper driven roller and the lower driven roller, and is used to detect the size of the gap; the driving unit is transmission-connected to the rolling mechanism, and is used to control the rolling mechanism to move along the rolling mill support and change the gap between the upper driven roller and the lower driven roller; the control unit is electrically connected to the detection unit and the driving unit, and is used to receive and process the detection unit signal and control the driving unit.
[0006] The metal rolling device with real-time thickness control of the present invention directly measures the gap between the rolling rollers in real time by arranging a thickness sensor on the rolling mill support, and uses the real-time data to adjust the gap between the rolling rollers in real time. Compared with the prior art, the present invention can adjust the gap between the rolling rollers without delay, greatly reduces the defective products generated during the adjustment of the gap between the rolling rollers, and effectively improves the production yield.
[0007] Furthermore, the first thickness sensor is divided into a first transmitting end and a first receiving end, the first transmitting end is installed on one side of the first bracket for transmitting a light signal; the first receiving end is installed on the other side of the first bracket for receiving a light signal, and both the first transmitting end and the first receiving end are facing the gap between the upper driven roller and the lower driven roller.
[0008] Furthermore, the detection unit also includes a second thickness sensor, which is installed on the other side of the rolling mill support and faces the gap between the upper driven roller and the lower driven roller, and is used to detect the size of the gap.
[0009] Furthermore, the second thickness sensor is divided into a second transmitting end and a second receiving end, the second transmitting end is installed on one side of the second bracket for transmitting light signals; the second receiving end is installed on the other side of the second bracket for receiving light signals, and both the second transmitting end and the second receiving end are facing the gap of the active roller.
[0010] Further, the driving unit includes a first driving kit, which is installed on the top of the first bracket and is used to drive one side of the upper active roller; the first driving kit includes a first slide rail, a first slider, a first upper end plate, a first lower end plate, a first driving member, a first connecting member, a first screw rod and a first straight rod; the first slide rail is fixedly connected to the top of the first bracket, the first slider can be slidably installed in the first slide rail, the first upper end plate is fixedly connected above the first slider, the first lower end plate is fixedly connected below the first slider, the first driving member is installed on the first upper end plate, one end of the first screw rod is drivingly connected to the output end of the first driving member through the first connecting member, and the other end passes through the first lower end plate and is installed on the top of the first bracket, one end of the first straight rod is connected to the first lower end plate, and the other end passes through the top of the first bracket and is connected to the active roller connecting member of the upper active roller.
[0011] Further, the driving unit also includes a second driving kit, which is installed on the top of the second bracket for driving the other side of the upper active roller; the second driving kit includes a second slide rail, a second slider, a second upper end plate, a second lower end plate, a second driving member, a second connecting member, a second screw rod and a second straight rod; the second slide rail is fixedly connected to the top of the second bracket, the second slider can be slidably installed in the second slide rail, the second upper end plate is fixedly connected above the second slider, and the second lower end plate is fixedly connected below the second slider, the second driving member is installed on the second upper end plate, one end of the second screw rod is drivingly connected to the output end of the second driving member through the second connecting member, and the other end passes through the second lower end plate and is installed on the top of the second bracket, one end of the second straight rod is connected to the second lower end plate, and the other end passes through the top of the second bracket and is connected to the active roller connecting member of the upper active roller.
[0012] Furthermore, the first driving member and the second driving member are servo motors, and in conjunction with them, the first driving kit also includes a first reduction motor, and the second driving kit also includes a second reduction motor. The output end of the first driving member is drivingly connected to the first reduction motor, and the output end of the first reduction motor is connected to the first screw rod through the first connecting member; the output end of the second driving member is drivingly connected to the second reduction motor, and the output end of the second reduction motor is connected to the second screw rod through the second connecting member.
[0013] Furthermore, the first drive kit and the second drive kit also include a thrust ball bearing and a bearing gasket, the thrust ball bearings are respectively mounted on the first screw rod and the second screw rod, and are respectively located above and below the first lower end plate and the second lower end plate, the bearing gasket is also mounted on the first screw rod and the second screw rod, and abuts against the thrust ball bearing.
[0014] Furthermore, the detection unit also includes a first limit sensor and a first limit block, the first limit sensor is fixedly connected to the first slide rail, and the first limit block is fixedly connected to the first lower end plate and is located opposite to the first limit sensor.
[0015] Furthermore, the detection unit also includes a second limit sensor and a second limit block, the second limit sensor is fixedly connected to the first lower end plate, the second limit block is fixedly connected to the top of the first bracket and is located opposite to the second limit sensor.
[0016] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1It is an overall schematic diagram of the rolling device of the present invention;
[0018] Figure 2 It is a left side view of the rolling device of the present invention;
[0019] Figure 3 is a schematic diagram of the driving unit of the present invention;
[0020] Figure 4 It is a schematic diagram of partial disassembly of the rolling device of the present invention;
[0021] Figure 5 for Figure 4 A partial enlarged schematic diagram. DETAILED DESCRIPTION
[0022] When a rolling device is rolling a metal raw material, the gap between the rolling rollers will gradually change due to the reaction force exerted by the metal raw material. Therefore, it is necessary to detect and adjust the gap between the rolling rollers in a timely manner. Existing rolling devices usually use an indirect measurement method to detect the gap between the rolling rollers. The gap between the rolling rollers is indirectly obtained by measuring the thickness of the produced product. However, this method will cause a certain detection lag, resulting in a certain number of defective products. In order to solve this problem, the inventor conducted an in-depth study on the metal rolling device and proposed a metal rolling device with real-time thickness control. The device directly measures the gap between the rolling rollers to obtain real-time data, thereby achieving real-time control of the gap between the rolling rollers and improving the product production yield.
[0023] See also Figure 1 and 2 A metal rolling device with real-time thickness control includes a rolling mill support 10, a rolling mechanism 20 and an adjusting mechanism 30. The rolling mechanism 20 is installed on the rolling mill support 10, and the adjusting mechanism 30 is used to detect and control the gap between the rolling rollers in the rolling mechanism 20 in real time.
[0024] The rolling mill support 10 includes a first support 11 and a second support 12, which are parallel to each other and arranged perpendicular to the horizontal plane. The rolling mechanism 20 includes an upper active roller 21, a lower active roller 22, an upper driven roller 24 and a lower driven roller 25. One end of the upper active roller 21 is mounted on the upper part of the first support 11 through an active roller connector 23, and the other end is mounted on the upper part of the second support 12 through an active roller connector 23; one end of the lower active roller 22 is mounted on the lower part of the first support 11 through an active roller connector 23, and the other end is mounted on the lower part of the second support 12 through an active roller connector 23. One end of the upper driven roller 24 is mounted on the first bracket 11 through a driven roller connecting piece 26, and the other end is mounted on the second bracket 12 through a driven roller connecting piece 26, and the upper driven roller 24 is in contact with the upper active roller 21; one end of the lower driven roller 25 is mounted on the first bracket 11 through a driven roller connecting piece 26, and the other end is mounted on the second bracket 12 through a driven roller connecting piece 26, and the lower driven roller 25 is in contact with the lower active roller 22; a gap is formed between the upper driven roller 24 and the lower driven roller 25 for allowing the metal raw material to pass through and be rolled.
[0025] A return spring 27 is provided between the driven roller connectors 26 of the upper driven roller 24 and the lower driven roller 25, and is used to help the driven rollers to reset when adjusting the gap between the rolling rollers. One end of the return spring 27 is fixedly connected to the driven roller connector 26 of the upper driven roller 24, and the other end is fixedly connected to the driven roller connector 26 of the lower driven roller 25. When the gap between the upper driven roller 24 and the lower driven roller 25 is reduced, the return spring 27 is squeezed; when the gap between the upper driven roller 24 and the lower driven roller 25 is increased, the return spring 27 provides elastic force to help the upper driven roller 24 move upward.
[0026] The adjustment mechanism 30 includes a detection unit, a drive unit and a control unit 33. The detection unit is used to directly measure the gap between the upper driven roller 24 and the lower driven roller 25, the drive unit is used to control the roller mechanism 20 to move along the rolling mill support 10, thereby controlling the gap between the rolling rollers, and the control unit 33 is used to receive and process the detection unit signal and control the drive unit.
[0027] Further, the detection unit includes a first thickness sensor. Specifically, the first thickness sensor is divided into a first transmitting end 311 and a first receiving end 312. The first transmitting end 311 is installed at the front end of the first bracket 11, and the first receiving end 312 is installed at the rear end of the first bracket 11, and the first transmitting end 311 and the first receiving end 312 are both facing the gap between the upper driven roller 24 and the lower driven roller 25. The first transmitting end 311 transmits a signal, and the signal is received by the first receiving end 312 after passing through the gap between the rolling rollers, thereby measuring the gap between the rolling rollers. In this embodiment, the first transmitting end 311 and the first receiving end 312 are a pair of digital micrometers, and the first transmitting end 311 emits a surface light source perpendicular to the gap between the rolling rollers, and a part of the surface light source is blocked by the upper driven roller 24 and the lower driven roller 25. The first receiving end 312 can obtain the size of the gap between the rolling rollers by receiving and measuring the surface light source passing through the gap between the rolling rollers.
[0028] Preferably, the detection unit further includes a second thickness sensor, which is installed on the opposite side of the first thickness sensor. The second thickness sensor is divided into a second transmitting end 313 and a second receiving end (not shown in the figure). The second transmitting end 313 is installed at the front end of the second bracket 12, and the second receiving end is installed at the rear end of the second bracket 12, and the second transmitting end 313 and the second receiving end are both facing the gap between the upper driven roller 24 and the lower driven roller 25. Since the thickness of the metal raw material may not be consistent, the reaction force applied to the rolling roller during the rolling process will also be inconsistent, resulting in inconsistent changes in the gap on both sides of the rolling roller. By setting the second thickness sensor and cooperating with the first thickness sensor, it is possible to achieve simultaneous measurement of the gap on both sides of the rolling roller, thereby accurately controlling the gap between the rolling rollers to keep it consistent.
[0029] The driving unit includes a first driving kit and a second driving kit, wherein the first driving kit is installed on the top of the first bracket 11 and is used to drive one side of the upper active roller 21, and the second driving kit is installed on the top of the second bracket 12 and is used to drive the other side of the upper active roller 21.
[0030] See also Figure 3Specifically, the first driving kit includes a first slide rail 321, a first slider 322, a first upper end plate 323, a first lower end plate 324, a first driving member 325, a first connecting member 326, a first screw rod 327 and a first straight rod 328. The first slide rail 321 is fixed to the top of the first bracket 11, the first slider 322 is slidably installed in the first slide rail 321, the first upper end plate 323 is fixed above the first slider 322, and the first lower end plate 324 is fixed below the first slider 322. The first driving member 325 is installed on the first upper end plate 323, one end of the first screw rod 327 is connected to the output end of the first driving member 325 through the first connecting member 326, and the other end passes through the first lower end plate 324 and is connected to the top of the first bracket 11 through a thread. One end of the first straight rod 328 is fixed to the first lower end plate 324, and the other end passes through the top of the first bracket 11 and is fixed to the active roller connecting member 23 on one side of the upper active roller 21. During operation, the first driving member 325 drives the first screw rod 327 to rotate, and the thread at the lower end of the first screw rod 327 connected to the first bracket 11 converts the rotation into vertical displacement, so that the first screw rod 327 moves up and down relative to the first bracket 11. The first screw rod 327 drives the first slider 322 to move up and down, and moves the upper active roller connecting member 23 connected to the first slider 322 through the first straight rod 328, so that the upper active roller 21 and the upper driven roller 24 also move, thereby changing the gap between the upper driven roller 24 and the lower driven roller 25, and adjusting the gap between the rolling rollers.
[0031] Correspondingly, the second drive kit includes a second slide rail, a second slider, a second upper end plate, a second lower end plate, a second drive member, a second connecting member, a second screw rod and a second straight rod. The second slide rail is fixedly connected to the top of the second bracket 12, the second slider is slidably installed in the second slide rail, the second upper end plate is fixedly connected above the second slider, and the second lower end plate is fixedly connected below the second slider. The second drive member is installed on the second upper end plate, one end of the second screw rod is connected to the output end of the second drive member through the second connecting member, and the other end passes through the second lower end plate and is connected to the top of the second bracket 12 through a thread. One end of the second straight rod is fixedly connected to the second lower end plate, and the other end passes through the top of the second bracket 12 and is fixed to the active roller connecting member 23 on the other side of the upper active roller 21. The working principle of the second drive kit is the same as that of the first drive kit, which will not be repeated here.
[0032] Preferably, the first driving member 325 and the second driving member are servo motors, which can provide more accurate power output. In conjunction with this, the first driving kit also includes a first reduction motor 329, and the second driving kit also includes a second reduction motor. The output end of the first driving member 325 is connected to the input end of the first reduction motor 329 by driving, and the output end of the first reduction motor 329 is connected to the first screw rod 327 through the first connecting member 326, so that the output of the first driving member 325 is decelerated by the first reduction motor 329 and then drives the first screw rod 327. Similarly, the output end of the second driving member is connected to the input end of the second reduction motor by driving, and the output end of the second reduction motor is connected to the second screw rod through the second connecting member, so that the output of the second driving member is decelerated by the second reduction motor and then drives the second screw rod. By setting a servo motor and a reduction motor to drive the screw rod, it is possible to provide a more accurate power output and achieve a more accurate adjustment of the gap between the rolling rollers.
[0033] See also Figure 4 and 5 Preferably, the first drive kit and the second drive kit further include a thrust ball bearing 3210 and a bearing washer 3211. For the first drive kit, the number of the thrust ball bearings 3210 is two, both of which are mounted on the first screw rod 327 and are respectively located above and below the first lower end plate 324, for bearing axial loads. The bearing washer 3211 is also mounted on the first screw rod 327 and abuts against the thrust ball bearing 3210, for limiting the displacement of the thrust ball bearing 3210. The setting of the second drive kit is the same as that of the first drive kit, and the number of the thrust ball bearings 3210 is two, both of which are mounted on the second screw rod 327 and are respectively located above and below the second lower end plate 324, for bearing axial loads. The bearing washer 3211 is also mounted on the second screw rod 327 and abuts against the thrust ball bearing 3210.
[0034] More preferably, the detection unit further includes a first limit sensor 315, a first limit block 316, a second limit sensor 317 and a second limit block 318. The first limit sensor 315 is fixedly connected to the first slide rail 321, and the first limit block 316 is fixedly connected to the first lower end plate 324, and the position is opposite to the first limit sensor 315. The first limit sensor 315 is used to detect the distance between the first limit block 316 and the first limit sensor 315, and to feed back to the control unit 33. When the first driving member 325 drives the first screw rod 327 to move the first slider 322 upward, the first limit block 316 moves with the first lower end plate 324, and the first limit sensor 315 detects the distance between the first limit block 316 in real time, and feeds back to the control unit 33 when the distance between the two is less than a preset threshold, so as to control the driving member 325 to stop working and prevent the slider 322 from moving upward beyond the travel of the slide rail 321. The second limit sensor 317 is fixed to the first lower end plate 324, and the second limit block 318 is fixed to the top of the first bracket 11 and is located opposite to the second limit sensor 317. The second limit sensor 317 is used to detect the distance between the second limit block 318 and the second limit block 318, and feed back to the control unit 33. When the first slider 322 moves downward, the distance between the second limit sensor 317 and the second limit block 318 decreases. When the distance between the two is less than a preset threshold, the control unit 33 controls the first driving member 325 to stop working, so as to prevent the first slider 322 from moving downward beyond the stroke, which can effectively prevent the upper driven roller 24 from excessively pressing the lower driven roller 25 due to mechanical failure or human operation error.
[0035] When in use, the metal raw material is aligned with the gap between the upper driven roller 24 and the lower driven roller 25, and after the machine is started, the upper driven roller 24 and the lower driven roller 25 pressurize and roll the metal raw material. At the same time, the first thickness sensor and the second thickness sensor detect the gap between the rolling rollers in real time and feed it back to the control unit 33. The control unit 33 controls the drive unit to output power to adjust the position of the upper driven roller 24 according to the feedback data, thereby adjusting the gap between the rolling rollers.
[0036] Compared with the prior art, the metal rolling device of the present invention directly detects the gap between the rolling rollers in real time by setting a first thickness sensor and a second thickness sensor on the rolling frame, which greatly reduces the generation of defective products without detection delay; and by simultaneously detecting the gaps on both sides of the rolling rollers by two sensors, the detection accuracy can be effectively improved, and the gap between the rolling rollers can be adjusted more accurately. Furthermore, by setting a limit sensor to limit the up and down travel of the slider, the equipment damage caused by excessive upward or downward movement of the rolling roller during the adjustment process is effectively avoided.
[0037] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present invention and the claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that, unless otherwise specified, "multiple" refers to two or more; the terms "first", "second", etc. are only used to distinguish, not to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. The term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items. It should be noted that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. When the above description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of the present application, for those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0038] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, and the present invention is also intended to include these modifications and modifications.
Claims
1. A metal rolling device with real-time thickness control, comprising a rolling mill support and a rolling mechanism, wherein the rolling mill support comprises a first support and a second support; the rolling mechanism comprises an upper active roller, a lower active roller, an upper driven roller and a lower driven roller, wherein the upper active roller and the lower active roller are mounted on the first support and the second support via an active roller connecting member; the upper driven roller and the lower driven roller are mounted on the first support and the second support via a driven roller connecting member, wherein the upper driven roller abuts against the upper active roller, and the lower driven roller abuts against the lower active roller, and a gap is formed between the upper driven roller and the lower driven roller; Features: It also includes an adjusting mechanism, which includes a detection unit, a driving unit and a control unit. The detection unit includes a first thickness sensor, which is installed on one side of the rolling mill support and faces the gap between the upper driven roller and the lower driven roller, and is used to detect the size of the gap; the driving unit is transmission-connected to the rolling mechanism, and is used to control the rolling mechanism to move along the rolling mill support and change the gap between the upper driven roller and the lower driven roller; the control unit is electrically connected to the detection unit and the driving unit, and is used to receive and process the detection unit signal and control the driving unit.
2. The metal rolling device according to claim 1, characterized in that: The first thickness sensor is divided into a first transmitting end and a first receiving end, the first transmitting end is installed on one side of the first bracket for transmitting a light signal; the first receiving end is installed on the other side of the first bracket for receiving a light signal, and both the first transmitting end and the first receiving end are facing the gap between the upper driven roller and the lower driven roller.
3. The metal rolling device according to any one of claims 1 or 2, characterized in that: The detection unit further comprises a second thickness sensor, which is mounted on the other side of the rolling mill support and faces the gap between the upper driven roller and the lower driven roller, and is used to detect the size of the gap.
4. The metal rolling device according to claim 3, characterized in that: The second thickness sensor is divided into a second transmitting end and a second receiving end. The second transmitting end is installed on one side of the second bracket for transmitting light signals. The second receiving end is installed on the other side of the second bracket for receiving light signals. Both the second transmitting end and the second receiving end face the gap between the active rollers.
5. The metal rolling device according to claim 4, characterized in that: The driving unit includes a first driving kit, which is installed on the top of the first bracket and is used to drive one side of the upper active roller; the first driving kit includes a first slide rail, a first slider, a first upper end plate, a first lower end plate, a first driving member, a first connecting member, a first screw rod and a first straight rod; the first slide rail is fixedly connected to the top of the first bracket, and the first slider is slidably installed in the first slide rail, the first upper end plate is fixedly connected above the first slider, and the first lower end plate is fixedly connected below the first slider. The first driving member is installed on the first upper end plate, one end of the first screw rod is drivingly connected to the output end of the first driving member through the first connecting member, and the other end passes through the first lower end plate and is installed on the top of the first bracket, one end of the first straight rod is connected to the first lower end plate, and the other end passes through the top of the first bracket and is connected to the active roller connecting member of the upper active roller.
6. The metal rolling device according to claim 5, characterized in that: The driving unit also includes a second driving kit, which is installed on the top of the second bracket to drive the other side of the upper active roller; the second driving kit includes a second slide rail, a second slider, a second upper end plate, a second lower end plate, a second driving member, a second connecting member, a second screw rod and a second straight rod; the second slide rail is fixedly connected to the top of the second bracket, and the second slider is slidably installed in the second slide rail, the second upper end plate is fixedly connected above the second slider, and the second lower end plate is fixedly connected below the second slider, and the second driving member is installed on the second upper end plate, one end of the second screw rod is drivingly connected to the output end of the second driving member through the second connecting member, and the other end passes through the second lower end plate and is installed on the top of the second bracket, one end of the second straight rod is connected to the second lower end plate, and the other end passes through the top of the second bracket and is connected to the active roller connecting member of the upper active roller.
7. The metal rolling device according to claim 6, characterized in that: The first driving member and the second driving member are servo motors, and the first driving kit also includes a first reduction motor and the second driving kit also includes a second reduction motor. The output end of the first driving member is drivingly connected to the first reduction motor, and the output end of the first reduction motor is connected to the first screw rod through the first connecting member; The output end of the second driving member is drivingly connected to the second reduction motor, and the output end of the second reduction motor is connected to the second lead screw through the second connecting member.
8. The metal rolling device according to claim 7, characterized in that: The first drive kit and the second drive kit also include a thrust ball bearing and a bearing gasket. The thrust ball bearing is respectively mounted on the first screw rod and the second screw rod, and is respectively located above and below the first lower end plate and the second lower end plate. The bearing gasket is also mounted on the first screw rod and the second screw rod, and abuts against the thrust ball bearing.
9. The metal rolling device according to claim 8, characterized in that: The detection unit further includes a first limit sensor and a first limit block, wherein the first limit sensor is fixedly connected to the first slide rail, and the first limit block is fixedly connected to the first lower end plate and is located opposite to the first limit sensor.
10. The metal rolling device according to claim 9, characterized in that: The detection unit further includes a second limit sensor and a second limit block, wherein the second limit sensor is fixedly connected to the first lower end plate, and the second limit block is fixedly connected to the top of the first bracket and is located opposite to the second limit sensor.