Ultra-precision pressure regulation and control cold rolling production process for steel belt

Abstract

The invention discloses an ultra-precision pressure regulation and control cold rolling production process for a steel belt, relates to the technical field of steel belt cold rolling, and aims to solve the problem of steel belt rolling deviation or uneven rolling caused by bending of the head of the steel belt. The driving assembly is started to drive the steel strip coil automatic guiding assembly to present a moving track from horizontal to arc, the steel strip coil automatic guiding assembly makes contact with the head of the steel strip when horizontally moving to the tail end, and the head of the steel strip is reversely bent along with arc movement and inserted into the steel strip coil automatic guiding assembly to be horizontally extruded; the uncoiling assembly rotates forwards to carry out automatic steel belt feeding, the steps of automatic steel belt feeding and steel belt head carding are optimized, manual operation is reduced, the working efficiency of cold rolling of multiple rolls of steel belts is improved, the steel belts at the head parts are automatically kept in a horizontal state, deviation or uneven rolling of the steel belts cannot be caused, and the cold rolling effect of the whole roll of steel belts is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel strip cold rolling, and in particular to a steel strip ultra-precision pressure-controlled cold rolling production process. Background Art

[0002] The cold rolling production process of steel strip pressure regulation is an advanced manufacturing technology. In the preparation stage, raw materials with chemical composition and mechanical properties that meet the standards are carefully selected, and their surfaces are cleaned to remove impurities such as oil and rust. During the rolling process, the steel coils are loaded in the early stage, and then the front section of the steel strip is transported to the cold rolling equipment in sequence. Through the advanced pressure control system, the roller pressure is monitored in real time, and it is automatically adjusted according to the thickness and shape changes of the strip to ensure that the pressure is accurate and appropriate, thereby achieving ultra-precise control of the thickness and shape of the strip. At the same time, the cooling system plays an important role, using water cooling or gas cooling to prevent the strip from overheating and ensure that it is processed within the appropriate temperature range. After rolling, the strip is surface treated, such as pickling and polishing, to improve the surface quality.

[0003] Announcement No. CN117619911A discloses a cold rolling device for the production of stainless steel strips. The loading coil and the receiving coil rotate. Before the stainless steel strip is pressed by the cold rolling mechanism, the distance between the two pressing plates is adjusted by the height adjustment component so that the steel strip passes through the two pressing plates. The height adjustment component adjusts the distance between the two pressing plates, and the water supply component supplies water into the groove. The steel strip passes through the cold rolling mechanism for pressing. After pressing, the steel strip is heated by a cooling mechanism to avoid secondary deformation of the steel strip due to high heat, which affects the quality of the steel strip.

[0004] However, in the above-mentioned prior art, when the steel strip is first conveyed from the feeding coil to the cold rolling mechanism, the head of the steel strip is manually pulled out and then fed into the cold rolling mechanism. Since the steel strip is hard, manual bending is very laborious, and it is also difficult to manually bend the head part of the steel strip to a horizontal state, resulting in the head part being bent during cold rolling, which can easily cause the steel strip to deviate or roll unevenly, affecting the cold rolling effect.

[0005] Therefore, a steel strip ultra-precision pressure-controlled cold rolling production process is needed. Summary of the invention

[0006] In order to solve all or part of the above problems, the present invention aims to provide a steel strip ultra-precision pressure-regulated cold rolling production process, so as to solve the problem of steel strip rolling deviation or uneven rolling caused by the bending of the steel strip head.

[0007] To achieve the above object, the present invention provides the following technical solution: a steel strip ultra-precision pressure-controlled cold rolling production process, characterized in that it includes the following steps:

[0008] S1: The steel strip is transported to the unwinding assembly of the unwinding machine through a conveying device such as a mobile track or a crane, and the steel strip coil anti-deviation assembly and the auxiliary limiting assembly restrict and clamp the steel strip, and then the unwinding assembly is started to reverse the steel strip until the head of the steel strip is detected by the sensor;

[0009] S2: The driving component starts to drive the steel strip coil automatic guide component to present a horizontal to arc-shaped movement trajectory, and the steel strip coil automatic guide component contacts the steel strip head when it moves horizontally to the end. With the arc-shaped movement, the steel strip head is reversely bent and inserted into the steel strip coil automatic guide component for horizontal extrusion, and the unwinding component rotates forward to automatically load the steel strip;

[0010] S3: The steel strip delivered from the uncoiler is connected by the transfer roller, and then the steel strip preferably passes through the front tension control mechanism, which transmits the steel strip to the middle of the roller mechanism. The roller mechanism is regulated by the pressure control mechanism according to the thickness requirement of the steel strip, and at the same time, the lubricating and cooling conveying mechanism sprays liquid to lubricate and cool the steel strip rolled by the roller mechanism. The steel strip rolled by the roller mechanism passes through the rear tension control mechanism again;

[0011] S4: The post-tension control mechanism then passes the steel strip through the thickness measuring mechanism to measure the thickness of the steel strip after rolling;

[0012] S5: After passing through the thickness measuring mechanism, the steel strip is connected again by the transfer roller and transported to the coiler for coiling, completing the cold rolling process of the steel strip;

[0013] The uncoiler includes a support plate and an uncoiler assembly installed on the support plate, an auxiliary limiting assembly is installed on the support plate located on one side of the upper end of the uncoiler assembly, a steel strip roll is sleeved on the uncoiler assembly, a steel strip roll anti-deviation assembly is installed at the lower end of the support plate, the free end of the steel strip roll anti-deviation assembly is sleeved on the outer side of the free end of the uncoiler assembly, a driving assembly is also installed on the support plate, a steel strip roll automatic guide assembly is installed on the driving end of the driving assembly, one side of the steel strip roll automatic guide assembly is slidably connected to the support plate, and a sensor is installed on the side of the support plate close to the uncoiler assembly.

[0014] Furthermore, the unwinding assembly includes a servo motor 1 and a center roller installed at the driving end of the servo motor 1, the support plate includes a vertical plate and a horizontal plate fixedly installed at the lower end of the vertical plate, the servo motor 1 is fixedly installed at the center of the vertical plate, the auxiliary limiting assembly includes a servo motor 2 and a rotating frame installed at the driving end of the servo motor 2, the rotating frame is arranged in a U shape, a support column is fixedly installed at one end of the rotating frame away from the servo motor 2, and a limiting roller is arranged on the outer side of the support column;

[0015] A plurality of grooves are provided on the support column, and a limiting component is installed on the support column at one end of the inner side of the groove, and the limiting component rotates clockwise and hides in the groove;

[0016] The steel strip roll anti-deviation assembly includes a servo motor three and a baffle installed at the driving end of the servo motor three. The servo motor three drives the baffle to rotate and the baffle is movably connected to the driving end of the servo motor three. A transmission block is installed at the driving end of the servo motor three between the servo motor three and the baffle. A cylinder one is installed at the end of the transmission block away from the servo motor three, and the driving end of the cylinder one is fixedly connected to the baffle.

[0017] Furthermore, the specific steps of S1 are as follows:

[0018] S11: The steel strip is conveyed to the outside of the center roller by the conveying equipment, and then the servo motor 3 is started to rotate clockwise to make the upper end of the baffle correspond to the center roller, and then the cylinder 1 is started to drive the baffle to cover the outside of the center roller and initially restrict the steel strip;

[0019] S12: Servo motor 2 drives the rotating frame to rotate counterclockwise so that the limiting roller presses the steel belt and the pressing point is located in the middle of the upper part of the steel belt. Then servo motor 1 drives the central roller to rotate the steel belt clockwise. At this time, the outermost steel belt drives the limiting roller to rotate counterclockwise. Since the outer sleeve is restricted by the support column, the limiting component cannot rotate. Since the limiting roller squeezes the steel belt, the outermost steel belt rotates counterclockwise, and the head of the steel belt is detected by the sensor.

[0020] S13: The servo motor drives the center roller to rotate the steel belt counterclockwise. At this time, the limiting roller prompts the limiting component to rotate counterclockwise, so that the limiting component rotates into the groove, allowing the limiting roller to rotate freely, thereby realizing the limitation of the steel belt at the beginning of transportation.

[0021] Furthermore, the limiting component includes a main movable column and a steel ball movably embedded in the upper end of the main movable column, the steel ball matches the circular groove opened on the inner side of the limiting roller, multiple circular grooves are provided and are arranged in a ring shape on the inner side of the limiting roller, a spring 1 is fixedly installed at the lower end of the main movable column, an outer sleeve is fixedly installed at the lower end of the spring 1, torsion springs are fixedly installed on both sides of the outer side of the outer sleeve, and one end of the torsion spring is fixedly connected to the support column.

[0022] Furthermore, in S12, when the friction between the steel belt and the limiting roller is too large, the steel balls will be squeezed to move downward, thereby driving the main movable column to move downward so that the steel balls enter the next circular groove from the original circular groove.

[0023] Furthermore, the driving assembly includes a second cylinder and a connecting block installed at the driving end of the second cylinder, a fixed column is arranged at the upper end of the connecting block, and a movable column is movably arranged inside the fixed column;

[0024] The automatic guiding assembly of the steel strip coil includes a rotating column rotatably installed at one end of the pushing plate, a side plate is installed at the upper end of the pushing plate, and a plurality of rolling columns are arranged on the inner side of the side plate. The rolling columns gradually approach the bottom of the pushing plate from the end close to the steel strip coil to the end away from the steel strip coil, and the section of the rolling columns away from the steel strip coil is on the same horizontal line.

[0025] Furthermore, the specific steps of S2 are as follows:

[0026] S21: The unwinding assembly reverses the steel strip until the head of the steel strip is detected by the sensor, and then the second cylinder drives the connecting block to move, thereby driving the fixed column to move the push plate. At the beginning, the rotating column on the push plate moves in the straight groove, and then the rotating column reaches the intersection of the straight groove and the arc groove;

[0027] S22: At this time, the upper side of one end of the push plate contacts the head of the steel strip, and then the rotating column moves in the arc groove. At this time, the movable column is driven to move upward, and the head of the steel strip begins to gradually enter between the rolling column and the push plate;

[0028] S23: In order to slowly level the steel strip at the beginning, the distance between the rolling column and the pushing plate is large. As the movement continues, the steel strip is pressed from a bent state to a horizontal state under the restriction of the rolling column and the pushing plate. At the same time, after the pushing plate moves to the end;

[0029] S24: A section of the head of the steel strip is tangent to the steel strip coil. At this time, the steel strip coil is rotated in the opposite direction. The head of the steel strip is horizontally transported to the middle of the rolling mechanism for cold rolling.

[0030] Furthermore, the rotating column is movably connected to a straight groove and an arc-shaped groove opened on one side of the vertical plate, and the straight groove is communicated with the arc-shaped groove.

[0031] Furthermore, a cylinder is installed on the upper end of the movable column, sliding columns are fixedly arranged on both sides of the cylinder, an extension groove is opened at the lower end of the push plate, and a guide groove is opened on the push plate located on the inner side of one end of the extension groove. The guide groove is slidably connected to the sliding column, and the cylinder is rotatably connected to the push plate.

[0032] Furthermore, in S24, as the cold rolling of the steel strip proceeds, the steel strip coil gradually becomes thinner as a whole. At this time, the driving component moves in the opposite direction. At this time, the steel strip coil and the push plate are not in a horizontal state, which will drive the push plate to rotate. At this time, the push plate rotates with the rotating column as the axis, and drives the sliding column to move along the guide groove, and the cylinder also rotates and moves downward, and finally the push plate rotates to maintain a parallel state with the steel strip, supporting the steel strip between the cold rolling mechanism and the steel strip coil.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The present invention proposes a cold rolling production process for steel strip with ultra-precision pressure control, which transports the steel strip to the uncoiling component of the uncoiling machine through conveying equipment such as mobile rails or cranes, and the steel strip is restricted and clamped by the steel strip roll anti-deviation component and the auxiliary limiting component, and then the uncoiling component is started to reverse the steel strip until the head of the steel strip is detected by the sensor, and the driving component starts to drive the steel strip roll automatic guiding component to present a horizontal to arc-shaped movement trajectory, and the steel strip roll automatic guiding component contacts the steel strip head when moving horizontally to the end, and the steel strip head is reversely bent with the arc-shaped movement and inserted into the steel strip roll automatic guiding component for horizontal extrusion, and the uncoiling component rotates forward to automatically load the steel strip, which optimizes the steps of automatic loading of the steel strip and combing the steel strip head, which not only reduces manual operation and improves the work efficiency of cold rolling of multiple steel strip rolls, but also automatically keeps the head part of the steel strip in a horizontal state, does not cause the steel strip to deviate or roll unevenly, and improves the cold rolling effect of the entire steel strip roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall cold rolling process flow of the steel strip ultra-precision pressure-controlled cold rolling production process of the present invention;

[0036] Figure 2 It is a schematic diagram of the three-dimensional structure of the uncoiled state of the uncoiled coiler of the cold rolling production process of the steel strip ultra-precision pressure control of the present invention;

[0037] Figure 3 It is a three-dimensional structural schematic diagram of the uncoiling state of the uncoiling machine of the steel strip ultra-precision pressure-controlled cold rolling production process of the present invention;

[0038] Figure 4 It is a schematic diagram of the three-dimensional structure of the uncoiled state of the uncoiled coiler of the cold rolling production process of the steel strip ultra-precision pressure control of the present invention;

[0039] Figure 5 It is a schematic diagram of the three-dimensional structure of the vertical plate of the steel strip ultra-precision pressure-controlled cold rolling production process of the present invention;

[0040] Figure 6 It is a schematic diagram of the three-dimensional structure of the support column and the limiting roller of the steel strip ultra-precision pressure control cold rolling production process of the present invention;

[0041] Figure 7 The invention provides a method for the cold rolling production process of steel strip with ultra-precision pressure control Figure 6 A schematic diagram of the enlarged structure at point A;

[0042] Figure 8 It is a schematic diagram of the three-dimensional structure of the drive assembly and the automatic guide assembly of the steel strip coil in the cold rolling production process of the steel strip ultra-precision pressure control of the present invention;

[0043] Fig. 9It is a schematic diagram of the planar structure of the drive assembly and the automatic guide assembly of the steel strip coil in the cold rolling production process of the steel strip ultra-precision pressure control of the present invention;

[0044] Fig.10 It is a schematic diagram of the three-dimensional structure of the sliding column and the pushing plate of the steel strip ultra-precision pressure control cold rolling production process of the present invention.

[0045] In the figure:

[0046] 1. Support plate; 11. Vertical plate; 111. Straight groove; 112. Arc groove; 12. Horizontal plate; 2. Unwinding assembly; 21. Servo motor 1; 22. Center roller; 3. Auxiliary limiting assembly; 31. Servo motor 2; 32. Rotating frame; 33. Support column; 331. Groove; 34. Limiting roller; 341. Circular groove; 35. Limiting assembly; 351. Main movable column; 352. Steel ball; 353. Spring 1; 354. Outer sleeve; 355. Torsion spring; 4. Steel Belt roll anti-deviation assembly; 41. Servo motor three; 42. Baffle; 43. Transmission block; 44. Cylinder one; 5. Drive assembly; 51. Cylinder two; 52. Connecting block; 53. Fixed column; 54. Movable column; 55. Cylinder; 56. Sliding column; 6. Steel belt roll automatic guide assembly; 61. Push plate; 611. Slide groove; 612. Guide slide groove; 613. Extension groove; 62. Rotating column; 63. Side plate; 64. Rolling column; 7. Sensor; 8. Steel belt roll. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] like Figure 1 As shown, a steel strip ultra-precision pressure-controlled cold rolling production process comprises the following steps:

[0049] Step 1: If Figure 2-Figure 7 As shown, the steel strip is transported to the outside of the center roller 22 by a conveying device such as a mobile track or a crane, and then the servo motor 3 41 is started to rotate clockwise to make the upper end of the baffle 42 correspond to the center roller 22, and then the cylinder 1 44 is started to drive the baffle 42 to cover the outside of the center roller 22 and initially restrict the steel strip to prevent it from falling off or deviating from the center roller 22. The initial rolling process is automatic, which improves the rolling efficiency.

[0050] Servo motor 2 31 drives rotating frame 32 to rotate counterclockwise so that limiting roller 34 presses the steel strip and the pressing point is located in the middle of the steel strip, and then servo motor 1 21 drives center roller 22 to make the steel strip rotate clockwise. At this time, the outermost steel strip drives limiting roller 34 to rotate counterclockwise. Since outer sleeve 354 is restricted by support column 33, limiting component 35 cannot rotate. Since limiting roller 34 squeezes the steel strip, the outermost steel strip rotates counterclockwise, so that the outermost steel strip will not spread out and fits tightly with the inner steel strip. , to ensure that the steel strip is in a taut state throughout the whole process after being unfolded, to avoid the steel strip being loose and causing easy shaking or wrinkles due to squeezing, so as to maintain the stability of the cold rolling of the steel strip, and to avoid the outer steel strip being tightly fitted and having no activity space, which will increase the friction between the steel strip and the limiting roller 34 and cause damage to the auxiliary limiting component 3, when the friction between the steel strip and the limiting roller 34 is too large, the steel ball 352 will be squeezed to move downward, thereby driving the main movable column 351 to move downward, so that the steel ball 352 enters the next circular groove 341 from the original circular groove 341, and so on, to achieve the effect of buffer protection;

[0051] When the steel belt is conveyed by counterclockwise rotation, the servo motor 21 drives the center roller 22 to make the steel belt rotate counterclockwise. At this time, the limiting roller 34 prompts the limiting component 35 to rotate counterclockwise, so that the limiting component 35 rotates into the groove 331, so that the limiting roller 34 can rotate freely, thereby realizing the restriction of the steel belt at the beginning of conveying, ensuring the stability of the steel belt during conveying.

[0052] Step 2: If Figure 4-Figure 10 As shown, the unwinding assembly 2 reverses the steel strip until the head of the steel strip is detected by the sensor 7, and the cylinder 2 51 drives the connecting block 52 to move and then drives the fixed column 53 to move the push plate 61. At the beginning, the rotating column 62 on the push plate 61 moves in the straight groove 111, and then the rotating column 62 reaches the intersection of the straight groove 111 and the arc groove 112. At this time, the upper side of one end of the push plate 61 contacts the head of the steel strip, and then the rotating column 62 moves in the arc groove 112. At this time, the movable column 54 is driven to move upward, and the head of the steel strip begins to gradually enter between the rolling column 64 and the push plate 61. At the beginning, in order to slowly straighten the steel strip The steel strip is flat, and the distance between the rolling column 64 and the pushing plate 61 is relatively large. With the continuous movement, the steel strip is pressed from a bent state to a horizontal state under the restriction of the rolling column 64 and the pushing plate 61. At the same time, after the pushing plate 61 moves to the end, a section of the head of the steel strip is tangent to the steel strip coil. At this time, the steel strip coil is rotated in the opposite direction. The head of the steel strip is horizontally transported to the middle of the rolling mechanism for cold rolling, which optimizes the steps of automatic feeding of the steel strip and combing of the head of the steel strip, which not only reduces manual operation and improves the work efficiency of cold rolling of multiple rolls of steel strips, but also automatically keeps the head part of the steel strip in a horizontal state, which will not cause the steel strip to deviate or roll unevenly, thereby improving the cold rolling effect of the entire roll of steel strip.

[0053] Furthermore, as the cold rolling of the steel strip proceeds, the steel strip coil gradually becomes thinner as a whole. At this time, the drive assembly 5 needs to move in the opposite direction and pause intermittently. At this time, the steel strip coil and the push plate 61 are not in a horizontal state, which will drive the push plate 61 to rotate. At this time, the push plate 61 rotates with the rotating column 62 as the axis, and drives the sliding column 56 to move along the guide groove 612, and the cylinder 55 can also rotate and move downward, and finally the push plate 61 rotates to maintain a parallel state with the steel strip, supporting the steel strip between the cold rolling mechanism and the steel strip coil, avoiding the gravity of this section of the steel strip itself affecting the cold rolling of the steel strip, and ensuring the cold rolling effect of the steel strip.

[0054] Step 3: The steel strip delivered from the uncoiler is connected by the transfer roller, and then the steel strip preferably passes through the front tension control mechanism, which transmits the steel strip to the middle of the roller mechanism. The roller mechanism is regulated by the pressure control mechanism according to the thickness requirement of the steel strip. At the same time, the lubrication and cooling conveying mechanism sprays liquid to lubricate and cool the steel strip rolled by the roller mechanism. The steel strip rolled by the roller mechanism passes through the rear tension control mechanism again.

[0055] Step 4: The post-tension control mechanism then passes the steel strip through the thickness measuring mechanism to measure the thickness of the steel strip after rolling.

[0056] Step 5: After passing through the thickness measuring mechanism, the steel strip is connected again through the transfer roller bearing and transported to the coiler for coiling to complete the cold rolling process of the steel strip.

[0057] It should be noted that, in the description of the present application, it should be understood that the terms "length", "thickness", "inside", "outside", "axial", "radial", etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0058] In addition, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises", or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel strip ultra-precision pressure-controlled cold rolling production process, characterized in that: The steps include: S1: The steel strip is conveyed to the unwinding assembly (2) of the unwinding machine by a conveying device, and the steel strip is restrained and clamped by the steel strip coil anti-deviation assembly (4) and the auxiliary restraining assembly (3), and then the unwinding assembly (2) is started to reverse the steel strip until the head of the steel strip is detected by the sensor (7); S2: the driving component (5) starts to drive the steel strip coil automatic guiding component (6) to present a horizontal to arc-shaped moving trajectory, and the steel strip coil automatic guiding component (6) contacts the steel strip head when it moves horizontally to the end, and with the arc-shaped movement, the steel strip head is reversely bent and inserted into the steel strip coil automatic guiding component (6) for horizontal extrusion, and the unwinding component (2) rotates forward to automatically load the steel strip; S3: The steel strip delivered from the uncoiler is connected by the transfer roller, and then the steel strip preferably passes through the front tension control mechanism, which transmits the steel strip to the middle of the roller mechanism. The roller mechanism is regulated by the pressure control mechanism according to the thickness requirement of the steel strip, and at the same time, the lubricating and cooling conveying mechanism sprays liquid to lubricate and cool the steel strip rolled by the roller mechanism. The steel strip rolled by the roller mechanism passes through the rear tension control mechanism again; S4: The post-tension control mechanism then passes the steel strip through the thickness measuring mechanism to measure the thickness of the steel strip after rolling; S5: After passing through the thickness measuring mechanism, the steel strip is connected again by the transfer roller and transported to the coiler for coiling, completing the cold rolling process of the steel strip; The uncoiler comprises a support plate (1) and an uncoiler assembly (2) mounted on the support plate (1); an auxiliary limiting assembly (3) is mounted on the support plate (1) located on one side of the upper end of the uncoiler assembly (2); a steel strip coil (8) is sleeved on the uncoiler assembly (2); a steel strip coil anti-deviation assembly (4) is mounted on the lower end of the support plate (1); the free end of the steel strip coil anti-deviation assembly (4) is sleeved on the outer side of the free end of the uncoiler assembly (2); a driving assembly (5) is also mounted on the support plate (1); a steel strip coil automatic guiding assembly (6) is mounted on the driving end of the driving assembly (5); one side of the steel strip coil automatic guiding assembly (6) is slidably connected to the support plate (1); and a sensor (7) is mounted on the side of the support plate (1) close to the uncoiler assembly (2).

2. The steel strip ultra-precision pressure-controlled cold rolling production process according to claim 1, characterized in that: The unwinding assembly (2) comprises a servo motor (21) and a center roller (22) mounted on the driving end of the servo motor (21); the support plate (1) comprises a vertical plate (11) and a horizontal plate (12) fixedly mounted on the lower end of the vertical plate (11); the servo motor (21) is fixedly mounted at the center of the vertical plate (11); the auxiliary limiting assembly (3) comprises a servo motor (31) and a rotating frame (32) mounted on the driving end of the servo motor (31); the rotating frame (32) is arranged in a U shape; a support column (33) is fixedly mounted on one end of the rotating frame (32) away from the servo motor (31); and a limiting roller (34) is arranged on the outer side of the support column (33); A plurality of grooves (331) are formed on the support column (33), and a limiting component (35) is installed on the support column (33) at one end inside the groove (331), and the limiting component (35) rotates clockwise and hides inside the groove (331); The steel strip roll anti-deviation assembly (4) comprises a servo motor three (41) and a baffle (42) installed at the driving end of the servo motor three (41); the servo motor three (41) drives the baffle (42) to rotate and the baffle (42) is movably connected to the driving end of the servo motor three (41); a transmission block (43) is installed at the driving end of the servo motor three (41) between the servo motor three (41) and the baffle (42); a cylinder one (44) is installed at one end of the transmission block (43) away from the servo motor three (41); and the driving end of the cylinder one (44) is fixedly connected to the baffle (42).

3. The steel strip ultra-precision pressure-controlled cold rolling production process according to claim 2, characterized in that: The specific steps of S1 are as follows: S11: The steel strip is conveyed to the outside of the center roller (22) by a conveying device, and then the servo motor three (41) is started to rotate clockwise to make the upper end of the baffle plate (42) correspond to the center roller (22), and then the cylinder one (44) is started to drive the baffle plate (42) to cover the outside of the center roller (22) and initially restrict the steel strip; S12: The servo motor 2 (31) drives the rotating frame (32) to rotate counterclockwise so that the limiting roller (34) presses the steel belt and the pressing point is located in the middle of the upper part of the steel belt. Then the servo motor 1 (21) drives the central roller (22) to rotate the steel belt clockwise. At this time, the outermost steel belt drives the limiting roller (34) to rotate counterclockwise. Since the outer sleeve (354) is restricted by the support column (33), the limiting component (35) cannot rotate. Since the limiting roller (34) squeezes the steel belt, the outermost steel belt rotates counterclockwise. The head of the steel belt is detected by the sensor (7). S13: The servo motor 1 (21) drives the center roller (22) to rotate the steel belt counterclockwise. At this time, the limiting roller (34) prompts the limiting component (35) to rotate counterclockwise, so that the limiting component (35) rotates into the groove (331), allowing the limiting roller (34) to rotate freely, thereby achieving limitation on the steel belt at the beginning of transportation.

4. The steel strip ultra-precision pressure-controlled cold rolling production process according to claim 3, characterized in that: The limiting component (35) comprises a main movable column (351) and a steel ball (352) movably embedded in the upper end of the main movable column (351); the steel ball (352) matches a circular groove (341) provided on the inner side of the limiting roller (34); a plurality of circular grooves (341) are provided and are arranged in an annular shape on the inner side of the limiting roller (34); a spring 1 (353) is fixedly installed at the lower end of the main movable column (351); an outer sleeve (354) is fixedly installed at the lower end of the spring 1 (353); torsion springs (355) are fixedly installed on both sides of the outer side of the outer sleeve (354); one end of the torsion spring (355) is fixedly connected to the support column (33).

5. The steel strip ultra-precision pressure-controlled cold rolling production process according to claim 4, characterized in that: In S12, when the friction between the steel belt and the limiting roller (34) is too great, the steel ball (352) will be squeezed to move downward, thereby driving the main movable column (351) to move downward so that the steel ball (352) enters the next circular groove (341) from the original circular groove (341).

6. The steel strip ultra-precision pressure-controlled cold rolling production process according to claim 1, characterized in that: The driving assembly (5) comprises a second cylinder (51) and a connecting block (52) mounted on the driving end of the second cylinder (51); a fixed column (53) is arranged at the upper end of the connecting block (52); and a movable column (54) is movably arranged inside the fixed column (53); The steel strip coil automatic guiding assembly (6) comprises a rotating column (62) rotatably mounted at one end of a pushing plate (61), a side plate (63) being mounted at the upper end of the pushing plate (61), a plurality of rolling columns (64) being arranged on the inner side of the side plate (63), the rolling columns (64) gradually approaching the bottom of the pushing plate (61) from the end close to the steel strip coil (8) to the end far away from the steel strip coil (8), and a section of the rolling columns (64) far away from the steel strip coil (8) is on the same horizontal line.

7. A steel strip ultra-precision pressure-controlled cold rolling production process as claimed in claim 6, characterized in that: The specific steps of S2 are as follows: S21: the unwinding assembly (2) causes the steel strip to reverse until the head of the steel strip is detected by the sensor (7), and the second cylinder (51) drives the connecting block (52) to move, thereby driving the fixed column (53) to move the push plate (61). At the beginning, the rotating column (62) on the push plate (61) moves in the straight groove (111), and then the rotating column (62) reaches the intersection of the straight groove (111) and the arc groove (112); S22: At this time, the upper side of one end of the push plate (61) contacts the head of the steel strip, and then the rotating column (62) moves in the arc groove (112), and the movable column (54) is driven to move upward, and the head of the steel strip begins to gradually enter between the rolling column (64) and the push plate (61); S23: In order to slowly level the steel strip at the beginning, the distance between the rolling column (64) and the pushing plate (61) is relatively large. As the movement continues, the steel strip is pressed from a bent state to a horizontal state under the restriction of the rolling column (64) and the pushing plate (61). At the same time, after the pushing plate (61) moves to the end; S24: A section of the head of the steel strip is tangent to the steel strip coil. At this time, the steel strip coil is rotated in the opposite direction. The head of the steel strip is horizontally transported to the middle of the rolling mechanism for cold rolling.

8. The steel strip ultra-precision pressure-controlled cold rolling production process according to claim 7, characterized in that: The rotating column (62) is movably connected to a straight groove (111) and an arc groove (112) provided on one side of the vertical plate (11), and the straight groove (111) is communicated with the arc groove (112).

9. The steel strip ultra-precision pressure-controlled cold rolling production process according to claim 8, characterized in that: A cylinder (55) is installed at the upper end of the movable column (54), sliding columns (56) are fixedly arranged on both sides of the cylinder (55), an extension groove (613) is provided at the lower end of the push plate (61), and a guide groove (612) is provided on the push plate (61) located on the inner side of one end of the extension groove (613), the guide groove (612) is slidably connected to the sliding column (56), and the cylinder (55) is rotatably connected to the push plate (61).

10. The steel strip ultra-precision pressure-controlled cold rolling production process according to claim 9, characterized in that: In the above S24, as the cold rolling of the steel strip proceeds, the steel strip coil gradually becomes thinner as a whole. At this time, the driving component (5) moves in the opposite direction. At this time, the steel strip coil and the pushing plate (61) are not in a horizontal state, which will drive the pushing plate (61) to rotate. At this time, the pushing plate (61) rotates with the rotating column (62) as the axis, and drives the sliding column (56) to move along the guide groove (612), and the cylinder (55) also rotates and moves downward, thereby finally making the pushing plate (61) rotate and maintain a parallel state with the steel strip, so as to support the steel strip between the cold rolling mechanism and the steel strip coil.

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