A rolling device and a rolling system

Abstract

The application discloses a rolling device and a rolling system, relates to the rolling technical field, and aims to solve the problems of reducing strip defects such as edge wave and edge crack and improving the quality of composite strip. The rolling device comprises a straightening device, an auxiliary device and a rolling device. The straightening device is used for straightening a strip to obtain a straightened strip. The auxiliary device comprises a surrounding lining strip, and the surrounding lining strip has a first accommodating space. In the height direction of the rolling device, the rolling device comprises a first work roll and a second work roll which are oppositely and spacedly arranged, and at least part of the second work roll is located in the first accommodating space. When the rolling device works, the lining strip and the straightened strip are attached together and are located between the first work roll and the second work roll, and the straightened strip is located between the lining strip and the first work roll.

Description

Technical Field

[0001] This application relates to the field of rolling technology, and more particularly to a rolling equipment and a rolling system. Background Technology

[0002] The high-end manufacturing fields such as new energy batteries, electronics, and automobiles have increasingly stringent requirements for the surface quality of high-performance composite strips (such as metal composite strips). It is necessary to ensure that the surface of the composite strip has no or reduced defects such as scratches, indentations, edge waviness, and edge cracks, while requiring the production process to have high stability and continuity.

[0003] Therefore, how to reduce strip defects such as edge waviness and edge cracks and improve the quality of composite strips has become a technical problem that the industry urgently needs to solve. Summary of the Invention

[0004] The purpose of this application is to provide a rolling equipment and rolling system for reducing strip shape defects such as edge waviness and edge cracks, and improving the quality of composite strip.

[0005] To achieve the above objectives, in a first aspect, this application provides a rolling mill. The rolling mill includes a straightening device, an auxiliary device, and a rolling mill. The straightening device is used to straighten a strip to obtain a straightened strip. The auxiliary device includes a surrounding liner having a first receiving space. Along the height direction of the rolling mill, the rolling mill includes a first work roll and a second work roll arranged opposite to and spaced apart, with at least a portion of the second work roll located within the first receiving space. During operation of the rolling mill, the liner and the straightened strip, which are bonded together, are located between the first and second work rolls, with the straightened strip located between the liner and the first work roll.

[0006] In one implementation, the strength of the liner is greater than the strength of the strip.

[0007] The width of the lining strip is greater than the width of the strip material;

[0008] Along the width direction of the lining strip, the lining strip includes a first part, a second part, and a third part in sequence. The thickness of the first part and the thickness of the third part are both less than the thickness of the second part.

[0009] In one implementation, the rolling equipment further includes: two limiting members, which are opposite to each other and spaced apart; the limiting members are disposed on the liner and are close to the first work roll; the distance between the two limiting members is greater than or equal to the width of the straightened strip and the direction of the distance is consistent with the width direction of the liner; the length of the limiting member is greater than or equal to the length of the liner and the length direction of the limiting member is consistent with the length direction of the liner.

[0010] In one implementation, the straightening device includes: a first frame;

[0011] The drive components are mounted on the first rack;

[0012] The transmission assembly, along the height direction of the first frame, includes a first gear and a second gear arranged opposite to each other, the first gear and the second gear meshing; the drive assembly is drivenly connected to the second gear.

[0013] A straightening roller assembly is mounted on a first frame. Along the height direction of the first frame, the straightening roller assembly includes a first straightening roller and a second straightening roller that are arranged opposite to each other and spaced apart. A first gear is mounted at the end of the first straightening roller, and a second gear is mounted at the end of the second straightening roller.

[0014] A first adjustment component is disposed on a first frame; the first adjustment component is drivenly connected to a first straightening roller, and the first adjustment component is used to adjust the distance between the first straightening roller and the second straightening roller in a first direction, the first direction being consistent with the height direction of the first frame.

[0015] In one implementation, the straightening device further includes a heating element disposed inside the first straightening roller and the second straightening roller, for heating the first straightening roller and the second straightening roller.

[0016] Along the height direction of the first frame, the first straightening roller and the second straightening roller are arranged alternately;

[0017] The rotational speed of the first straightening roller is greater than that of the second straightening roller.

[0018] In one implementation, the auxiliary device includes:

[0019] First support frame;

[0020] The unwinding roll and tensioning roll are arranged in the first support frame, and are opposite to each other and spaced apart; the lining strip is wound on the unwinding roll and tensioning roll.

[0021] The first drive component is poweredly connected to the unwinding roller.

[0022] In one implementation, the auxiliary device further includes:

[0023] A pressure sensor is mounted on the first support frame; the pressure sensor is connected to the tension roller and is used to detect the tension status of the tension roller.

[0024] The second adjustment component is disposed on the first support frame; the second adjustment component is connected to the tension roller, and the second adjustment component is used to adjust the position of the tension roller on the first support frame so as to tension the liner belt.

[0025] A correction assembly is mounted on the first support frame; two correction assemblies are positioned opposite each other and spaced apart, with the liner located between the two correction assemblies; the correction assembly is used to adjust the position of the liner so that the distance between the centerline of the liner and the centerline of the straightened strip is within a preset range.

[0026] In one implementation, the correction component includes:

[0027] The first cylinder body has a first base, which is fixedly connected to a first support frame; along the height direction of the first cylinder body, the first cylinder body has a first through hole penetrating the first cylinder body;

[0028] The first rotating shaft is rotatably disposed within the first through hole;

[0029] The second driving component is driven to the first end of the first rotating shaft;

[0030] The first rotating shaft has a fixed connection at its second end to the straightening rod; the second driving component is used to drive the first rotating shaft to move, so that the first rotating shaft drives the straightening rod to move, thereby adjusting the position of the liner.

[0031] In one implementation, the rolling equipment further includes a lubrication device; the lubrication device is located between the straightening device and the auxiliary device;

[0032] The lubrication device includes:

[0033] The second support frame has a load-bearing surface;

[0034] A conveying assembly, mounted on the bearing surface, is used to convey the straightened strip.

[0035] A lubrication application component is located at least on one side of the conveying component; the lubrication application component is used to apply lubricant to the straightened strip;

[0036] The guide roller assembly is mounted on the second support frame; along the conveying direction of the conveying assembly, the guide roller assembly is located on one side of the conveying assembly; the guide roller assembly is used to convey the straightened strip with lubricating fluid.

[0037] The positioning components are mounted on the second support frame and located on both sides of the conveying components; the positioning components are used to adjust the position of the straightened strip so that the center line of the liner is aligned with the center line of the straightened strip.

[0038] In one implementation, the positioning component includes:

[0039] A cylinder having a piston rod; the cylinder is mounted on a second support frame;

[0040] The connector is fixedly connected to the free end of the piston rod;

[0041] The second cylinder body includes a second base and a second cylinder body disposed on the second base, the second base being disposed on a second support frame; the second cylinder body penetrates the support surface; along the height direction of the second cylinder body, the second cylinder body has a second through hole penetrating the second cylinder body;

[0042] The second rotating shaft is rotatably disposed within the second through hole; the first end of the second rotating shaft is connected to the connecting piece.

[0043] The connecting rod is fixedly connected to the second end of the second rotating shaft. The connecting rod is used to adjust the position of the straightened strip so that the center line of the liner and the center line of the straightened strip are aligned.

[0044] In one implementation, the rolling equipment also includes a grinding device located between the straightening device and the auxiliary device;

[0045] The grinding device includes:

[0046] The second rack has a second storage space;

[0047] Third driving component;

[0048] A grinding roller assembly is mounted on a second frame and located within a second accommodating space; a third driving component is driven to connect with the grinding roller assembly; along the height direction of the second frame, the grinding roller assembly includes a first grinding roller and a second grinding roller;

[0049] When grinding and straightening the strip, the straightened strip is located between the first grinding roller and the second grinding roller.

[0050] In one implementation, the grinding device further includes: a fourth driving member and a cooling roller assembly; the cooling roller assembly is disposed on the second frame and located within the second accommodating space; the cooling roller assembly is located between the straightening device and the grinding roller assembly; the fourth driving member is drivenly connected to the cooling roller assembly; along the height direction of the second frame, the cooling roller assembly includes a first cooling roller and a second cooling roller; the cooling roller assembly further includes a cooling pipe disposed within the first and second cooling rollers; the inlet and outlet of the cooling pipe are respectively connected to a liquid supply assembly; the liquid supply assembly stores coolant.

[0051] The second frame has a fourth through hole on its surface; the grinding device also includes an air extraction component and a cooler; the air extraction component is disposed on the second frame, located outside the second receiving space, and communicates with the fourth through hole; the cooler is disposed on the second frame and located inside the second receiving space.

[0052] Compared with the prior art, the beneficial effects of this application are as follows:

[0053] In the rolling equipment provided in this application, since the liner and the straightened strip are rolled simultaneously by the rolling device during the actual rolling process, unlike the prior art where the strip directly bears concentrated and intense rolling force, this application introduces a liner to transform the single concentrated pressure into a uniform and gradually distributed pressure field. Furthermore, this "soft contact" deformation mode can significantly homogenize the differences in flow stress caused by the different strengths and ductility of the metal layers in the straightened strip, effectively suppressing the generation of strip shape defects such as edge waviness and edge cracks from the source, thereby producing rolled strip with excellent internal and external quality, improving the quality of the final strip, and achieving a leap from "passive correction" to "active prevention" in strip shape control. It should be noted that "soft contact" here refers to the fact that the liner is softer than the first and second work rolls. In this application, one side of the straightened strip contacts the liner rather than directly contacting the second work roll; therefore, the contact between one side of the straightened strip and the liner forms a soft contact. Furthermore, because the liner is arranged in a loop, it can be reused without changing the direction of the liner's drive or reinstalling or replacing it, thus improving work efficiency.

[0054] Secondly, this application also provides a rolling system, including the rolling equipment described in the above technical solution.

[0055] The beneficial effects of the rolling system provided in this application are the same as those of the rolling equipment described in the above technical solutions, and will not be repeated here. Attached Figure Description

[0056] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0057] Figure 1 This is a schematic diagram of the strip, the straightened strip, and the rolling equipment in the embodiments of this application;

[0058] Figure 2 This is a front view of the rolling equipment in an embodiment of this application;

[0059] Figure 3 This is a cross-sectional view of the combination of the second work roller, liner, limiting member and straightened strip in the embodiments of this application;

[0060] Figure 4 This is a schematic diagram of the straightening device in the embodiments of this application;

[0061] Figure 5 This is a side view of a portion of the straightening device structure in an embodiment of this application;

[0062] Figure 6 This is a schematic diagram of the auxiliary device in the embodiments of this application;

[0063] Figure 7 This is a schematic diagram of the structure of the correction component in the embodiments of this application;

[0064] Figure 8 This is a schematic diagram of the lubrication device in an embodiment of this application;

[0065] Figure 9 This is a schematic diagram of the positioning component in an embodiment of this application;

[0066] Figure 10 This is a schematic diagram of the grinding device in the embodiments of this application;

[0067] Figure 11 This is a schematic diagram of the first cooling roller and cooling pipe before they are assembled in the embodiments of this application.

[0068] Figure label:

[0069] 1-Straightening device, 10-First frame, 11-Drive assembly, 12-Transmission assembly, 120-First gear, 121-Second gear, 13-Straightening roll group, 130-First straightening roll, 131-Second straightening roll, 14-First adjusting assembly; 2-Auxiliary device, 20-First support frame, 21-Unwinding roll, 22-Tension roll, 23-First drive component, 24-Pressure sensor, 25-Second adjusting assembly, 250-Lead screw, 251-Lead rod, 252-Slider, 26-Correction assembly, 260-First cylinder, 261-First rotating shaft, 262-Correction rod, 263-First base; 3-Rolling device, 30-First work roll, 31-Second work roll; 40-Strip, 41-Straightened strip; 5-Liner, 50-First part, 51-Second part, 5 2-Part Three; 6-Limiting component, 7-Lubrication device, 70-Second support frame, 71-Transfer assembly, 72-Lubrication addition assembly, 73-Guide roller group, 730-First guide roller, 731-Second guide roller, 74-Positioning assembly, 740-Cylinder, 7400-Piston rod, 741-Connector, 742-Second cylinder body, 7420-Second base, 7421-Second cylinder body, 743-Second rotating shaft, 744-Connecting rod; 8-Grinding device, 80-Second frame, 82-Grinding roller group, 820-First grinding roller, 821-Second grinding roller, 83-Cooling roller group, 830-First cooling roller, 831-Second cooling roller, 84-Cooling pipe, 840-Liquid inlet, 841-Liquid outlet, 85-Liquid supply assembly, 86-Air extraction assembly, 87-Cooler. Detailed Implementation

[0070] To facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. For example, the first threshold and the second threshold are only used to distinguish different thresholds and do not limit their order. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0071] It should be noted that, in this application, the terms "exemplary" or "for example" are used to indicate that something is being described as an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0072] In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, a combination of a and b, a combination of a and c, a combination of b and c, or a, b, and c, where a, b, and c can be single or multiple.

[0073] The high-end manufacturing sectors such as new energy batteries, electronics, and automobiles are placing increasingly stringent requirements on the surface quality of high-performance composite strips (such as metal composite strips). However, in the actual production of composite strip rolling, especially when producing ultra-thin, ultra-wide, or high-strength differential composite strips, the following problems exist due to differences in material properties and limitations of existing processes.

[0074] First, it is necessary to ensure that the surface of the composite strip is free of or has reduced defects such as scratches, indentations, edge waviness, and edge cracks, while requiring the production process to have high stability and continuity.

[0075] Secondly, the preparation of composite strip rolling relies on a large single-pass reduction rate. Limited by the minimum rollable thickness of the mill and the stiffness limit of the rolls, achieving a single-pass large reduction rolling process for composite strip places high demands on the equipment's load capacity, which is often difficult to meet with ordinary two-roll mills. Expanding production scale necessitates lowering the technical threshold of the rolling system. Furthermore, the process places high demands on roll quality, inevitably increasing the number of roll changes and grinding operations, leading to production line downtime and reduced efficiency.

[0076] Third: In the traditional work roll rolling process of composite strip, due to the differences in rheological stress and ductility of the constituent materials of the composite strip, the deformation is not coordinated, which easily leads to defects such as edge waviness, warping, depressions, and interface cracking. In multi-pass rolling, the composite strip will show obvious warping, which affects the rolling accuracy and quality of subsequent passes. Therefore, the bent composite strip from the previous pass needs to be straightened before each pass.

[0077] Traditional solutions rely on the strip shape control system of the rolling mill (such as bending rolls and tilting rolls) and the carrier belt method, that is, the composite strip to be rolled is pasted or temporarily fixed on a relatively thick carrier belt for rolling. However, this method has inherent drawbacks such as cumbersome process, difficulty in bonding and separating, easy introduction of impurities or glue residue, and the inability to recycle the carrier belt, which leads to a sharp increase in production costs.

[0078] To address at least one of the aforementioned technical problems, in a first aspect, this application provides a rolling mill apparatus. See also... Figures 1 to 6 The rolling mill includes a straightening device 1, an auxiliary device 2, and a rolling mill 3. The straightening device 1 straightens the strip 40 to obtain a straightened strip 41. The auxiliary device 2 includes a surrounding liner 5, which has a first receiving space. Along the height direction A of the rolling mill 3, the rolling mill 3 includes a first work roll 30 and a second work roll 31 arranged opposite to each other and spaced apart, with at least a portion of the second work roll 31 located within the first receiving space. When the rolling mill 3 is operating, the liner 5 and the straightened strip 41, bonded together, are located between the first work roll 30 and the second work roll 31, and the straightened strip 41 is located between the liner 5 and the first work roll 30. That is, the liner 5 and the straightened strip 41 are bonded together and located between the first work roll 30 and the second work roll 31. Further, one side of the liner 5 is bonded to the straightened strip 41, and the portion of the liner 5 located between the first work roll 30 and the second work roll 31 is bonded to the straightened strip 41.

[0079] It should be noted that the aforementioned strip 40 can be a composite strip or a strip made of a single material (for ease of description, it will be referred to as a single strip). The composite strip in this application is a sheet or strip made by metallurgically bonding two or more different metals through composite processing, encompassing types such as bimetallic strips and composite steel plates. For example, a composite strip can be a thin composite strip of copper and stainless steel.

[0080] See Figures 1 to 6 In the rolling equipment provided in this application, since the liner 5 and the straightened strip 41 are rolled simultaneously by the rolling device 3 during the actual rolling process, unlike the prior art where the strip 40 directly bears concentrated and intense rolling force, this application introduces the liner 5 to transform the single concentrated pressure into a uniform and gradually distributed pressure field. Furthermore, when the strip 40 is a single strip or a composite strip, this "soft contact" deformation mode can significantly homogenize the differences in flow stress caused by the different strengths and ductility of the metal layers in the straightened strip 41, effectively suppressing the generation of strip shape defects such as edge waviness and edge cracks from the source, thereby producing rolled strip with excellent internal and external quality, improving the quality of the final strip, and realizing the leap from "passive correction" to "active prevention and control" in strip shape control. It should be noted that "soft contact" here refers to the fact that the liner 5 is softer than the first work roll 30 and the second work roll 31. In this application, one side of the straightened strip 41 contacts the liner 5 instead of directly contacting the second work roll 31. Therefore, the contact between one side of the straightened strip 41 and the liner 5 forms a soft contact. It is worth noting that when the strip 40 is a single strip, it can be divided into three metal layers (upper, middle, and lower) along its thickness direction. When the strip 40 is a composite strip, since it is a sheet or strip made by metallurgically bonding two or more different metals through composite processing, it includes multiple metal layers, or it can also be divided into three metal layers (upper, middle, and lower). Furthermore, since the liner 5 is arranged in a loop, it can be reused without changing its drive direction or requiring reinstallation or replacement, thus improving work efficiency.

[0081] In some embodiments, see Figure 6 The second working roller 31 passes through the first receiving space formed by the surrounding liner 5.

[0082] Based on the preceding description, see [link / reference]. Figure 1 The liner 5 and the straightened strip 41, which are bonded together, are located between the first work roll 30 and the second work roll 31, and the straightened strip 41 is located between the liner 5 and the first work roll 30. Therefore, in this application, the liner 5 is provided on one side of the straightened strip 41.

[0083] By employing the above technical solution, compared to simultaneously setting the liner 5 on both sides of the straightened strip 41, the solution of setting the liner 5 on only one side of the straightened strip 41 has solved more than 80% of the quality problems. Paying 100% extra cost for the remaining 20% ​​quality improvement is generally not advisable in engineering. Furthermore, in an industrial environment, the simplicity, reliability, and ease of maintenance of the rolling equipment are crucial for ensuring continuous and stable production. The solution of setting the liner 5 on only one side of the straightened strip 41 provides a significant quality improvement while maximizing the high reliability and operability of the rolling equipment.

[0084] As one possible implementation, see Figure 1 Along the height direction A of the rolling device 3, the rolling device 3 includes a first work roll 30 and a second work roll 31 that are arranged opposite to each other and spaced apart.

[0085] In some embodiments, see Figure 1 The second work roll 31 is located below the first work roll 30, and the second work roll 31 is closer to the ground than the first work roll 30. Since the straightened strip 41 is located between the liner 5 and the first work roll 30 in this application, it can be known that the liner 5 is located below the straightened strip 41.

[0086] See Figure 1 and Figure 6 With the above technical solution, during the actual rolling process, workers can clearly observe the engagement between the straightened strip 41 and the first work roll 30, facilitating monitoring of the rolling process. If the liner 5 is placed above the straightened strip 41, it will obstruct the view, making it impossible to directly observe the contact area between the straightened strip 41 and the first work roll 30. This will delay the detection and handling of abnormalities, thus affecting the quality of the final strip. Furthermore, to provide a sufficiently reliable and stable driving force, the uncoiling motor driving the liner 5 is usually large and needs to be connected to the uncoiling roll 21 via a rigid shaft. Therefore, the uncoiling motor is generally placed on the ground or on the same plane as the uncoiling roll 21. If the liner 5 is placed above the straightened strip 41, the placement and connection of the uncoiling motor becomes difficult. Therefore, to solve the placement and connection problem of the uncoiling motor, this application places the liner 5 below the straightened strip 41. Furthermore, placing the liner 5 above the straightened strip 41 would introduce enormous complexity, cost, and operational challenges that far outweigh any potential quality improvements. Moreover, to avoid the substantial costs and technical risks associated with placing the liner 5 above the straightened strip 41, this application places the liner 5 below the straightened strip 41.

[0087] See Figure 1It should be noted that the specific structure of the rolling device 3 is not specifically limited here, as long as it can achieve the rolling of the liner 5 and the straightened strip 41.

[0088] As one possible implementation, the strength of the liner 5 is greater than that of the strip 40. In this case, it can be ensured that the liner 5 will not undergo plastic deformation, fracture, or fatigue failure under the action of huge rolling tension and rolling force.

[0089] Furthermore, the liner 5 has high abrasion resistance. This allows it to resist frictional wear between itself and the second work roll 31 and the strip 40, maintaining surface smoothness and extending its service life.

[0090] Furthermore, the liner 5 exhibits excellent heat resistance. Therefore, even under the instantaneous high temperatures generated during rolling, the liner 5 can maintain its strength, hardness, and dimensional stability.

[0091] In one alternative approach, the material of the lining 5 may be at least one or more of spring steel, maraging steel, or alloy steel.

[0092] For example, the material of the liner 5 can be high-strength spring steel (e.g., 60Si2MnA, 50CrVA, 55CrSi), maraging steel (e.g., 18Ni), or high-temperature alloy steel (e.g., H13).

[0093] As one possible implementation, see Figure 3 The width of the lining 5 is greater than the width of the strip 40.

[0094] As one possible implementation, see Figure 3 Along the width direction B of the lining strip 5, the lining strip 5 sequentially includes a first part 50, a second part 51, and a third part 52. The thickness H1 of the first part 50 and the thickness H3 of the third part 52 are both less than the thickness H2 of the second part 51. That is, the lining strip 5 is a strip type that is low on both sides and high in the middle.

[0095] Because the transverse stress distribution of the straightened strip 41 is not uniform during rolling, usually with high stress on both sides and low stress in the middle, defects such as edge cracks and edge waviness appear in the straightened strip 41. Therefore, the liner 5 adopts a strip type with low stress on both sides and high stress in the middle, which can effectively alleviate the uneven transverse stress distribution of the straightened strip 41. Thus, while assisting in rolling, it can improve the occurrence of edge cracks and edge waviness defects in the straightened strip 41, thereby improving the quality of the final strip.

[0096] In some embodiments, see Figure 3The length of the first part 50 is equal to the length of the third part 52. Along the width direction B of the liner 5, the width of the liner 5 first gradually increases and then gradually decreases. For example, the longitudinal section of the liner 5 near the first work roll 30 is arc-shaped.

[0097] As one possible implementation, see Figure 3 The rolling equipment also includes: two limiting members 6, which are opposite to each other and spaced apart. The limiting members 6 are disposed on the liner 5, and are close to the first work roll 30. The distance between the two limiting members 6 is greater than or equal to the width of the straightened strip 41, and the direction of the distance is consistent with the width direction B of the liner 5. The length of the limiting member 6 is greater than or equal to the length of the liner 5, and the length direction of the limiting member 6 is consistent with the length direction of the liner 5.

[0098] Since the limiting member 6 set on the liner 5 is close to the first working roll 30, the straightened strip 41 is located between the liner 5 and the first working roll 30. Therefore, the straightened strip 41 is located between the two limiting members 6. The limiting member 6 is used to limit the position of the straightened strip 41 and prevent the straightened strip 41 from slipping and deviating.

[0099] In one alternative embodiment, the material of the aforementioned limiting member 6 can be the same as that of the strip 40; however, the material of the limiting member 6 can also be different from that of the strip 40. Furthermore, the aforementioned limiting member 6 can be a protruding strip or a limiting strip with grooves, etc., with the two grooves of the two limiting members 6 arranged opposite to each other.

[0100] In some embodiments, the material of the limiting member 6 is the same as that of the strip 40, the distance between the two limiting members 6 is greater than the width of the straightened strip 41, the distance is equal to the width of the lining 5, and the length of the limiting member 6 is equal to the length of the lining 5.

[0101] As one possible implementation, see Figure 4 and Figure 5The straightening device 1 includes a first frame 10, a drive assembly 11, a transmission assembly 12, a straightening roller assembly 13, and a first adjustment assembly 14. The drive assembly 11 is mounted on the first frame 10 along the height direction C of the first frame 10. The transmission assembly 12 includes a first gear 120 and a second gear 121 arranged opposite to each other, meshing, and the drive assembly 11 is drivenly connected to the second gear 121. The straightening roller assembly 13 is mounted on the first frame 10 along the height direction C of the first frame 10, and includes a first straightening roller 130 and a second straightening roller 131 arranged opposite to each other and spaced apart. The first gear 120 is located at the end of the first straightening roller 130, and the second gear 121 is located at the end of the second straightening roller 131. For example, the first straightening roller 130 is connected to the first gear 120 via a revolute joint, and the second straightening roller 131 is connected to the second gear 121 via a revolute joint. The drive assembly 11 includes a motor.

[0102] In actual use, the drive assembly 11 drives the second gear 121 to rotate, the second gear 121 drives the first gear 120 and the second straightening roller 131 to rotate, and the first gear 120 drives the first straightening roller 130 to rotate, thereby realizing the straightening of the strip 40 by the first straightening roller 130 and the second straightening roller 131.

[0103] See Figure 4 The first adjustment component 14 is disposed on the first frame 10 and is drivenly connected to the first straightening roller 130. The first adjustment component 14 is used to adjust the distance between the first straightening roller 130 and the second straightening roller 131 in a first direction, which is consistent with the height direction C of the first frame 10. At this time, the straightening device 1 can be adapted to strips 40 with different degrees of curvature.

[0104] The smaller the distance between the first straightening roller 130 and the second straightening roller 131 in the first direction, the stronger the straightening effect on the strip.

[0105] The specific structure of the first adjustment component 14 can be found in the prior art, and will not be specifically limited here.

[0106] In one alternative approach, see Figure 4 The straightening device 1 also includes: a heating element ( Figures 1 to 11 (Not shown in the image). Heating elements are disposed inside the first straightening roller 130 and the second straightening roller 131 to heat the first straightening roller 130 and the second straightening roller 131, causing the surface areas of the first straightening roller 130 and the second straightening roller 131 to heat up rapidly. At this time, when straightening the strip 40, residual stress inside the strip 40 can be eliminated, and the internal stress distribution can be made uniform, thereby further realizing the straightening of the strip 40 from bending. At the same time, impurities on the surface of the strip 40 also undergo high-temperature oxidation, which facilitates subsequent cooling and grinding removal, improving the surface quality of the strip 40.

[0107] In some embodiments, the heating element may be an electromagnetic heating element, a resistance heating element, a microwave heating element, etc. For example, the heating element may be an electromagnetic coil or a heating coil, etc.

[0108] As one possible implementation, see Figure 4 and Figure 5 Along the height direction C of the first frame 10, the first straightening roller 130 and the second straightening roller 131 are arranged alternately.

[0109] In this application, the rotational speed V1 of the first straightening roller 130 is not equal to the rotational speed V2 of the second straightening roller 131.

[0110] As one possible implementation, the rotational speed V1 of the first straightening roller 130 is greater than the rotational speed V2 of the second straightening roller 131.

[0111] By precisely controlling the speeds of the first straightening roller 130 and the second straightening roller 131, a controllable speed difference is created between the upper and lower surfaces of the strip 40. This speed difference actively introduces a strong and uniform shear force field in the thickness direction of the strip 40, effectively "combing" and "coordinating" the flow behavior of different metal layers (in this case, the strip is a composite strip). The differential speed mechanism can additionally "drag" the surface material, synchronizing it with the central layer and achieving initial straightening. It should be noted that the surface material and central layer here refer to the surface material and central layer of the composite strip.

[0112] In some embodiments, see Figure 4 The rotational speed V1 of the first straightening roller 130 is greater than the rotational speed V2 of the second straightening roller 131, and the second straightening roller 131 is closer to the ground than the first straightening roller 130.

[0113] In one alternative approach, see Figure 4 and Figure 5 The diameter of the first gear 120 is smaller than the diameter of the second gear 121, so that the rotational speed V1 of the first straightening roller 130 is greater than the rotational speed V2 of the second straightening roller 131.

[0114] Of course, the rotational speed V1 of the first straightening roller 130 can also be made greater than the rotational speed V2 of the second straightening roller 131 by controlling the number of teeth of the first gear 120 and the second gear 121.

[0115] As one possible implementation, see Figure 6The auxiliary device 2 includes: a first support frame 20, an unwinding roller 21 and a tensioning roller 22 disposed in the first support frame 20, the unwinding roller 21 and the tensioning roller 22 being opposite to each other and spaced apart, the lining strip 5 being wound on the unwinding roller 21 and the tensioning roller 22, the first driving member 23 being poweredly connected to the unwinding roller 21, and the unwinding roller 21 providing power to the lining strip 5.

[0116] Since the liner 5 is wound around the unwinding roll 21 and the tensioning roll 22, it is not used once because it is rolled together with the straightened strip 41. Instead, the liner 5 in this application can be recycled, thus reducing production costs.

[0117] The unwinding roll 21 and the tension roll 22 are rotatably mounted within the first support frame 20; the specific mounting and mounting method is not limited here. Furthermore, the first support frame 20 has an opening to allow a portion of the liner 5 surrounding the unwinding roll 21 and the tension roll 22 to be located on the second work roll 31. Even further, the aforementioned first drive member 23 can be an unwinding motor. Along the length direction of the straightened strip 41 or along the transmission direction of the straightened strip 41, the unwinding roll 21 and the tension roll 22 are opposite to each other and spaced apart.

[0118] In one alternative approach, see Figure 6 and Figure 7 The auxiliary device 2 also includes: a pressure sensor 24, a second adjustment component 25, and a correction component 26.

[0119] See Figure 6 A pressure sensor 24 is mounted on the first support frame 20 and connected to the tension roller 22 to detect the tension status of the tension roller 22. A second adjustment component 25 is mounted on the first support frame 20 and connected to the tension roller 22. The second adjustment component 25 is used to adjust the position of the tension roller 22 on the first support frame 20 to tension the liner 5.

[0120] The second adjustment component 25 is described below using two possible structural compositions as examples. It should be noted that the following description is for understanding purposes only and is not intended to limit the specifics.

[0121] Example 1: See Figure 6 The second adjustment assembly 25 includes a lead screw 250 and a fifth drive element ( Figure 6 (Not shown in the image). Along the direction from the unwinding roller 21 to the tensioning roller 22, the lead screw 250 is disposed in a groove on the side of the first support frame 20. The lead screw 250 includes a lead rod 251 and a slider 252 movably disposed on the lead rod 251. The slider 252 is connected to the bearing seat of the tensioning roller 22, and the fifth driving member is drivenly connected to the lead rod 251.

[0122] In actual operation, the fifth driving component drives the lead screw 251 to rotate, at which time the slider 252 moves, thereby driving the bearing seat of the tension roller 22 to move, thus adjusting the position of the tension roller 22 on the first support frame 20 to tension the liner 5. The aforementioned fifth driving component can be a motor or a handle, etc.

[0123] Example 2: The second adjusting assembly includes a support, a sixth driving member, a movable member, and at least one guide member. Along the direction from the unwinding roll to the tension roll, the support is disposed within a groove in the first support frame, and at least one guide member is disposed on the support. The first end face of the movable member is slidably connected to the guide member, and the second end face of the movable member is connected to the bearing seat of the tension roll. The sixth driving member is connected to one end of the movable member and is used to drive the movable member to move.

[0124] For example, the sixth driving component described above can be a motor, such as a stepper motor. The moving component described above can be a slider or a moving wheel, etc. The first moving structure described above can include two guide members arranged parallel to each other on the support base, and the guide members can be guide rails or slide rails, etc. The support base can be mounted on the base frame by bonding, welding, or bolting, etc.

[0125] As one possible implementation, see Figure 6 and Figure 7 The correction assembly 26 is mounted on the first support frame 20. Two correction assemblies 26 are positioned opposite each other and spaced apart, with the liner 5 located between the two correction assemblies 26. The correction assembly 26 is used to adjust the position of the liner 5 so that the distance between the centerline of the liner 5 and the centerline of the straightened strip 41 is within a preset range. At this time, the deviation trend of the liner 5 can be corrected in real time, avoiding strip damage caused by rolling deviation. It should be noted that the specific value range of the above-mentioned "preset range" can be set according to the actual situation and is not specifically limited here. Preferably, the centerline of the liner 5 and the centerline of the straightened strip 41 coincide. Further, before the correction assembly 26 adjusts the position of the liner 5, the straightened strip 41 is located above the liner 5.

[0126] In some embodiments, two correction components 26 are disposed on both sides of the first support frame 20 and are arranged symmetrically through a rotating joint.

[0127] In one alternative approach, see Figure 6 and Figure 7 The correction assembly 26 includes: a first cylinder 260, a first rotating shaft 261, and a second drive component ( Figure 6 and Figure 7(Not shown in the image) and a correction rod 262. The first cylinder body 260 has a first base 263, which is fixedly connected to the first support frame 20. Along the height direction of the first cylinder body 260, the first cylinder body 260 has a first through hole penetrating the first cylinder body 260. A first rotating shaft 261 is rotatably disposed in the first through hole, and a second driving member is drivenly connected to the first end of the first rotating shaft 261. The second end of the first rotating shaft 261 is fixedly connected to the correction rod 262, and the second driving member is used to drive the first rotating shaft 261 to move, so that the first rotating shaft 261 drives the correction rod 262 to move, thereby adjusting the position of the liner 5.

[0128] For example, the first base 263 is fixedly connected to the bearing surface of the first support frame 20, and a third through hole is provided on the bearing surface. The first rotating shaft 261 passes through both the first through hole and the third through hole. The first end of the first rotating shaft passes through the third through hole and is drivenly connected to the second driving member. The second end of the first rotating shaft is fixedly connected to the correction rod 262, which is located on one side of the liner 5.

[0129] As one possible implementation, see Figure 1 and Figure 8 The rolling equipment also includes a lubrication device 7, which is located between the straightening device 1 and the auxiliary device 2. The lubrication device 7 includes: a second support frame 70, a conveying assembly 71, a lubrication adding assembly 72, a guide roller group 73, and a positioning assembly 74.

[0130] The second carrier frame 70 has a carrier surface, and the conveying assembly 71 is disposed on the carrier surface for conveying the straightened strip 41.

[0131] In one alternative embodiment, the conveying assembly 71 may include a support frame and a conveyor element, the conveyor element being rolled on the bearing surface via the support frame. Exemplarily, the conveyor element may be a conveying roller, track, guide rail, etc.

[0132] See Figure 8 The lubrication application component 72 is located at least on one side of the conveying component 71, and is used to apply lubricant to the straightened strip 41. This improves the surface quality of the straightened strip 41 while also ensuring that the straightened strip 41 can still be separated after being rolled together with the liner 5. In other words, it ensures that the straightened strip 41 can be easily separated after being rolled together with the liner 5.

[0133] In some embodiments, see Figure 8 Lubrication application components 72 are provided on both sides of the conveying component 71. Furthermore, the lubrication application components 72 located on both sides of the conveying component 71 can be arranged symmetrically or staggered.

[0134] The nozzle of the lubrication application component 72 is suspended above the straightened strip 41 to facilitate precise application of lubricant to the surface of the straightened strip 41. The specific structure of the lubrication application component 72 is not specifically limited here and can be manufactured according to actual conditions.

[0135] See Figure 8 The guide roller assembly 73 is rotatably mounted on the second support frame 70. Along the conveying direction of the conveying assembly 71, the guide roller assembly 73 is located on one side of the conveying assembly 71. The guide roller assembly 73 is used to convey the straightened strip 41 with lubricating fluid. Specifically, along the conveying direction of the conveying assembly 71, the conveying assembly 71 has a conveying initial end and a conveying end, and the guide roller assembly 73 is located at the conveying end of the conveying assembly 71.

[0136] For example, along the height direction of the second support frame 70, the guide roller group 73 includes a first guide roller 730 and a second guide roller 731 that are arranged opposite to each other and spaced apart.

[0137] See Figure 8 The positioning component 74 is mounted on the second support frame 70 and located on both sides of the conveying component 71. The positioning component 74 is used to adjust the position of the straightened strip 41 so that the center line of the liner 5 and the center line of the straightened strip 41 are aligned, achieving precise guidance and preventing the straightened strip 41 from deviating, thus avoiding rolling failure. It should be noted that alignment here means that the center line of the liner 5 and the center line of the straightened strip 41 are on the same straight line.

[0138] In one alternative approach, see Figure 8 The lubrication device 7 includes multiple positioning components 74, two of which are located near the guide roller group 73 at the end of the conveying assembly 71. The remaining two positioning components 74 are located away from the guide roller group 73 at the beginning of the conveying assembly 71. A lubrication application component 72 is located between the four positioning components 74. That is, before applying lubricant to the straightened strip 41, the position of the straightened strip 41 is adjusted using the positioning components 74. Alternatively, after applying lubricant to the straightened strip 41, the position of the straightened strip 41 is adjusted using the positioning components 74 to ensure that the centerline of the liner 5 and the centerline of the straightened strip 41 are always aligned.

[0139] In one alternative approach, see Figure 8 and Figure 9 The positioning assembly 74 includes: a cylinder 740, a connector 741, a second cylinder body 742, a second rotating shaft 743, and a connecting rod 744.

[0140] See Figure 8 and Figure 9The cylinder 740 has a piston rod 7400 and is mounted on the second support frame 70. For example, the cylinder 740 is fixedly connected to the back of the bearing surface in the second support frame 70 via a second connector 741.

[0141] See Figure 8 and Figure 9 The connecting member 741 is fixedly connected to the free end of the piston rod 7400. The second cylinder body 742 includes a second base 7420 and a second cylinder body 7421 disposed on the second base 7420. The second base 7420 is disposed on the second support frame 70, and the second cylinder body 7421 penetrates the support surface. For example, the second base 7420 is fixed to the support surface or the back side of the support surface of the second support frame 70 by bolts.

[0142] See Figure 8 and Figure 9 Along the height direction D of the second cylinder body 742, the second cylinder body 742 has a second through hole penetrating through it. A second rotating shaft 743 is rotatably disposed within the second through hole. The first end of the second rotating shaft 743 is connected to a connecting member 741, and a connecting rod 744 is fixedly connected to the second end of the second rotating shaft 743. The connecting rod 744 is used to adjust the position of the straightened strip 41 so that the centerline of the liner 5 is aligned with the centerline of the straightened strip 41. For example, the second rotating shaft 743 and the connecting rod 744 are fixedly connected by a pin.

[0143] See Figure 8 and Figure 9 In actual use, the cylinder 740 drives the piston rod 7400 to extend and retract, the piston rod 7400 drives the connecting piece 741 to move, the connecting piece 741 drives the second rotating shaft 743 to rotate, and the second rotating shaft 743 provides rotational freedom for the connecting rod 744.

[0144] As one possible implementation, see Figure 1 and Figure 10 The rolling equipment also includes a grinding device 8, located between the straightening device 1 and the auxiliary device 2. The grinding device 8 includes a second frame 80, a third drive unit, and a grinding roller assembly 82. The second frame 80 has a second receiving space, and the grinding roller assembly 82 is disposed on the second frame 80 and located within the second receiving space. The third drive unit is drivenly connected to the grinding roller assembly 82. Along the height direction E of the second frame 80, the grinding roller assembly 82 includes a first grinding roller 820 and a second grinding roller 821. When grinding the straightened strip 41, the straightened strip 41 is located between the first grinding roller 820 and the second grinding roller 821. The grinding roller assembly 82 can remove impurities from the upper and lower surfaces of the straightened strip 41, improving the surface quality of the straightened strip 41.

[0145] For example, the first grinding roller 820 and the second grinding roller 821 are arranged symmetrically.

[0146] In one alternative approach, see Figure 10 and Figure 11 The grinding device 8 further includes a fourth driving member and a cooling roller assembly 83. The cooling roller assembly 83 is mounted on the second frame 80 and located within the second accommodating space. The cooling roller assembly 83 is situated between the straightening device 1 and the grinding roller assembly 82, and the fourth driving member is driven to the cooling roller assembly 83. Along the height direction E of the second frame 80, the cooling roller assembly 83 includes a first cooling roller 830 and a second cooling roller 831. The cooling roller assembly 83 also includes a cooling pipe 84, which is disposed within the first cooling roller 830 and the second cooling roller 831. The inlet 840 and outlet 841 of the cooling pipe 84 are respectively connected to a liquid supply assembly 85, which stores coolant.

[0147] In practical use, see Figure 11 The coolant enters the cooling pipe 84 through the inlet 840, which rapidly cools the surface areas of the first cooling roller 830 and the second cooling roller 831. Then it flows out from the outlet 841 and returns to the supply assembly 85, thus realizing the circulation of the coolant.

[0148] For example, the first cooling roller 830 and the second cooling roller 831 are symmetrically arranged. The coolant can be water, chilled brine, or ethylene glycol, etc.

[0149] In one alternative embodiment, the second frame 80 has a fourth through hole on its surface. See also Figure 10 The grinding device 8 also includes an extraction assembly 86 and a cooler 87. The extraction assembly 86 is mounted on the second frame 80, located outside the second receiving space, and communicates with the fourth through hole. The cooler 87 is mounted on the second frame 80 and located inside the second receiving space.

[0150] The vacuum assembly 86 and the cooler 87 create a low-temperature environment for the second containment space, ensuring that the straightened strip 41 is fully cooled. This ensures efficient removal of impurities from the surface of the straightened strip 41 and prevents damage to other devices due to excessively high temperatures in the straightened strip 41.

[0151] For example, the extraction assembly 86 can be an extraction element or a fan. The specific structure of the cooler 87 can be found in the prior art, and is not specifically limited here.

[0152] In some embodiments, when the grinding device 8 is located between the straightening device 1 and the auxiliary device 2, and the straightening device 1 includes a heating element, and the grinding device 8 includes a cooling roller group 83 or an air extraction component 86 and a cooler 87, the impurities on the strip surface are removed by the grinding roller group 82 after high-temperature oxidation and rapid cooling, which facilitates the removal of impurities from the upper and lower surfaces of the strip and effectively improves the surface quality of the strip.

[0153] As one possible implementation, see Figure 1 The grinding device 8 is located between the straightening device 1 and the lubrication device 7. The straightening device 1, the grinding device 8, the lubrication device 7, the auxiliary device 2 and the rolling device 3 are located on the same straight line.

[0154] In summary, see Figures 1 to 11 In this application, a high-strength liner 5, which runs synchronously with the strip 40 and is reusable, is introduced during the actual rolling process. The liner 5 is located below the strip 40 and enters the rolling device 3 together. Furthermore, the rolling equipment in this application is a dynamic subsystem integrating differential hot roll straightening, cooling and cleaning, automatic centering, and precision tension control functions. As a flexible platform, the rolling equipment provides uniform support and force transmission for the strip 40 within the rolling zone, effectively homogenizing the differences in material flow stress and isolating surface defects of the first work roll 30 and the second work roll 31. At the same time, under the pressure of the first work roll 30 and the second work roll 31, the frictional force between the liner 5 and the strip 40 helps to stabilize the exit tension and inlet tension of the entire strip 40.

[0155] Furthermore, under the same rolling force, because more energy is used for the plastic deformation of the strip 40 rather than consumed in the elastic deformation of the rolls, this application can achieve a thinner, more stable rolled strip 40. This makes it possible to produce ultra-thin specifications that cannot be rolled using conventional rolling mill theory (e.g., micron-level ultra-thin composite strips for flexible electronics and high-end capacitors). It should be noted that the rolls here refer collectively to the first work roll 30 and the second work roll 31.

[0156] Secondly, to achieve a target thickness for the rolled strip 40, this application requires less rolling force. This means that a smaller rolling mill 3 can be used to accomplish the same task, significantly reducing equipment investment and energy consumption. In other words, while effectively suppressing defects such as edge waviness and cracking in the strip to improve quality, this application can achieve the target thickness with less rolling force, increasing the upper limit of the thinning thickness. Furthermore, the rolling mill 3, bearings, and other key components operate under lower loads, significantly extending their fatigue life and thus the lifespan of the rolling equipment. Moreover, the entire rolling equipment operates far from its load limits, resulting in higher safety redundancy.

[0157] Furthermore, this application integrates modules such as strip straightening 40, cooling and impurity removal, automatic centering, and auxiliary strip 5 into a production line, which can be efficiently integrated with existing rolling mills (i.e., rolling device 3 in this application), can be recycled, and can simultaneously solve multiple problems such as strip shape, thickness, surface quality, and stability.

[0158] Furthermore, by providing heating elements within the first straightening roll 130 and the second straightening roll 131, a "high-temperature hot roll" is obtained, which reduces the deformation resistance of the strip 40. Further, in this application, the rotational speed V1 of the first straightening roll 130 is greater than the rotational speed V2 of the second straightening roll 131, controlling the boundary friction conditions through "differential bite." Simultaneously, the strip 40 is efficiently straightened from both the internal material properties and external friction conditions, suppressing warping defects accumulated during multi-pass rolling thinning due to deformation coordination.

[0159] Furthermore, the carrier strip is a temporary physical support, primarily intended to support and transport ultra-thin or fragile materials that cannot be rolled independently. It typically requires the use of adhesives, temporary welding, or mechanical clamping to secure the composite strip to be rolled onto the carrier strip, which is a disposable product. After rolling, the composite strip needs to be peeled off the carrier strip, a complex process that can easily damage the composite strip, often resulting in the carrier strip being discarded. Each rolling cycle consumes both carrier strip and adhesive, leading to high costs per cycle.

[0160] However, the liner in this application is a recyclable process tool whose core function is to improve the rolling process (e.g., homogenize the force field, stabilize tension, and protect the surface). It adheres to the strip solely through the friction generated by pressing, without any adhesives. Designed as a closed-loop system, the liner automatically separates from the strip after rolling and is then used for the next cycle. Operating costs are extremely low, and after the initial investment, the high-strength liner can be recycled hundreds to thousands of times.

[0161] Furthermore, the introduction of carrier tape introduces new sources of contamination and damage risks (e.g., adhesive residue, stress during peeling), with the aim of "preserving shape" rather than "optimizing deformation." Carrier tape is a consumable product of "passive support," and its technical approach is to "bypass the problem" rather than address the issue of tape shape defects at their source.

[0162] However, the intervention of the lining strip in this application is purely mechanical and physical. It fundamentally improves the internal and external quality of the strip by optimizing the stress and strain conditions in the rolling zone, without introducing any chemical pollution. It is a kind of "active control" process equipment, and its technical idea is "problem solving".

[0163] Combination Figures 1 to 11 When strip 40 is a metal composite strip, the following describes the operation of the rolling equipment as an example of one possible method. It should be noted that the following description is for understanding only and is not intended to limit the specific application.

[0164] Step 101: Adjust the first adjusting component 14 according to the degree of bending of the metal composite strip to adjust the distance between the first straightening roller 130 and the second straightening roller 131 in the first direction. Then, the induction coils (i.e., heating elements) disposed in the first straightening roller 130 and the second straightening roller 131 are energized and heat is generated rapidly to cause the surface temperature of the first straightening roller 130 and the second straightening roller 131 to rise rapidly, thereby eliminating residual stress inside the metal composite strip and making its internal stress distribution uniform.

[0165] Step 102: Start the motor, which drives the second gear 121 to rotate, thereby causing the first straightening roller 130 and the second straightening roller 131 to rotate. The rotational speed V1 of the first straightening roller 130 is greater than the rotational speed V2 of the second straightening roller 131. The concave side of the metal composite strip is fed into the straightening device 1 with its side facing upwards, so that the speed on the bent side of the metal composite strip is greater than that on the other side, thus achieving straightening.

[0166] Step 103: The straightened metal composite strip quickly enters the grinding device 8. Coolant circulates through the cooling pipe 84 via the inlet 840 and outlet 841, rapidly cooling the surface areas of the first cooling roller 830 and the second cooling roller 831. Furthermore, under the combined action of the air extraction assembly 86 and the cooler 87, the straightened metal composite strip is rapidly cooled, and surface impurities are fully oxidized to facilitate subsequent processing.

[0167] Step 104: Start the grinding roller group 82. The rotation direction of the grinding roller group 82 is consistent with the subsequent rolling direction of the straightened metal composite strip. The grinding roller group 82 is used to remove impurities from the upper and lower surfaces of the straightened metal composite strip, effectively improving the surface quality of the straightened metal composite strip.

[0168] Step 105: The straightened metal composite strip, after surface treatment, enters the lubrication device 7. The cylinder 740 drives the second rotating shaft 743 to rotate the connecting rod 744, thereby adjusting the straightened metal composite strip to ensure that the center line of the straightened metal composite strip is aligned with the center line of the liner 5, achieving precise guidance and preventing the straightened metal composite strip from deviating, thus avoiding rolling failure. At the same time, the lubrication addition components 72 on both sides of the conveying assembly 71 are activated, uniformly adding lubricant to the surface of the straightened metal composite strip, which is then sent to the front of the rolling device 3 via the guide roller group 73.

[0169] Step 106: The lubricated and straightened metal composite strip enters the auxiliary device 2. The uncoiler motor starts, and the pressure sensor 24 first monitors whether the liner 5 is tensioned. The position of the tension roller 22 is adjusted by the second adjusting component 25 to achieve tension of the liner 5. The lubricated and straightened metal composite strip is tightly attached to one side of the liner 5 and fed into the rolling device 3 for rolling to obtain the rolled strip. The lubricated and straightened metal composite strip is located between the liner 5 and the first work roll 30.

[0170] Secondly, this application also provides a rolling system, including the rolling equipment described in the above technical solution.

[0171] The beneficial effects of the rolling system provided in this application are the same as those of the rolling equipment described in the above technical solutions, and will not be repeated here.

[0172] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of this application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if such modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, this application is also intended to include such modifications and modifications.

Claims

1. A rolling mill, characterized in that, include: A straightening device is used to straighten strip to obtain straightened strip; An auxiliary device, the auxiliary device including a surrounding liner having a first receiving space; A rolling apparatus, along the height direction of the rolling apparatus, includes a first work roll and a second work roll arranged opposite to and spaced apart; at least a portion of the second work roll is located within the first receiving space; When the rolling device is working, the liner and the straightened strip that are bonded together are located between the first work roll and the second work roll, and the straightened strip is located between the liner and the first work roll; The strength of the lining is greater than the strength of the strip. Along the width direction of the lining strip, the lining strip sequentially includes a first part, a second part, and a third part, wherein the thickness of the first part and the thickness of the third part are both less than the thickness of the second part.

2. The rolling equipment according to claim 1, characterized in that, The width of the lining is greater than the width of the strip.

3. The rolling equipment according to claim 1 or 2, characterized in that, The rolling equipment further includes: a limiting member, two of which are opposite to each other and spaced apart; the limiting member is disposed on the liner belt and is close to the first work roll; The distance between the two limiting members is greater than or equal to the width of the straightened strip, and the direction of the distance is consistent with the width direction of the lining strip; The length of the limiting member is greater than or equal to the length of the lining strip, and the length direction of the limiting member is consistent with the length direction of the lining strip.

4. The rolling equipment according to claim 1, characterized in that, The straightening device includes: First rack; The drive assembly is mounted on the first rack; The transmission assembly, along the height direction of the first frame, includes a first gear and a second gear disposed opposite to each other, the first gear and the second gear meshing; the drive assembly is drivenly connected to the second gear. A straightening roller assembly is mounted on the first frame; along the height direction of the first frame, the straightening roller assembly includes a first straightening roller and a second straightening roller that are arranged opposite to each other and spaced apart; a first gear is disposed at the end of the first straightening roller, and a second gear is disposed at the end of the second straightening roller; A first adjustment component is disposed on the first frame; the first adjustment component is drivenly connected to the first straightening roller, and the first adjustment component is used to adjust the distance between the first straightening roller and the second straightening roller in a first direction, the first direction being consistent with the height direction of the first frame.

5. The rolling equipment according to claim 4, characterized in that, The straightening device further includes a heating element disposed inside the first straightening roller and the second straightening roller, used to heat the first straightening roller and the second straightening roller; Along the height direction of the first frame, the first straightening roller and the second straightening roller are arranged alternately; The rotational speed of the first straightening roller is greater than that of the second straightening roller.

6. The rolling equipment according to claim 1, characterized in that, The auxiliary device includes: First support frame; An unwinding roller and a tensioning roller are disposed within the first support frame, the unwinding roller and the tensioning roller being opposite to each other and spaced apart; the liner is wound around the unwinding roller and the tensioning roller; The first driving component is dynamically connected to the unwinding roller.

7. The rolling equipment according to claim 6, characterized in that, The auxiliary device also includes: A pressure sensor is mounted on the first support frame; the pressure sensor is connected to the tension roller and is used to detect the tension state of the tension roller. A second adjustment component is disposed on the first support frame; the second adjustment component is connected to the tension roller, and the second adjustment component is used to adjust the position of the tension roller on the first support frame so as to tension the liner belt. A correction component is disposed on the first support frame; two correction components are disposed opposite to each other and spaced apart, and the liner is located between the two correction components; the correction component is used to adjust the position of the liner so that the distance between the center line of the liner and the center line of the straightened strip is within a preset range.

8. The rolling equipment according to claim 7, characterized in that, The correction component includes: A first cylinder body, the first cylinder body having a first base, the first base being fixedly connected to the first support frame; along the height direction of the first cylinder body, the first cylinder body having a first through hole penetrating the first cylinder body; The first rotating shaft is rotatably disposed within the first through hole; The second driving component is drivenly connected to the first end of the first rotating shaft; The first rotating shaft has a second end fixedly connected to the correction rod; the second driving member is used to drive the first rotating shaft to move, so that the first rotating shaft drives the correction rod to move, thereby adjusting the position of the liner.

9. The rolling equipment according to claim 1, characterized in that, The rolling equipment also includes a lubrication device; the lubrication device is located between the straightening device and the auxiliary device; The lubrication device includes: The second support frame has a load-bearing surface; A conveying assembly, disposed on the bearing surface, is used to convey the straightened strip. A lubrication application component is located at least on one side of the conveying component; the lubrication application component is used to apply lubricant to the straightened strip; A guide roller assembly is disposed on the second support frame; the guide roller assembly is located on one side of the conveying assembly along the conveying direction of the conveying assembly; the guide roller assembly is used to convey the straightened strip with lubricating fluid. A positioning component is disposed on the second carrier and located on both sides of the conveying component; the positioning component is used to adjust the position of the straightened strip so that the center line of the liner is aligned with the center line of the straightened strip.

10. The rolling equipment according to claim 9, characterized in that, The positioning component includes: A cylinder having a piston rod; the cylinder is mounted on the second support frame; A connector is fixedly connected to the free end of the piston rod; The second cylinder body includes a second base and a second cylinder body disposed on the second base, the second base being disposed on the second support frame; the second cylinder body penetrates the support surface; along the height direction of the second cylinder body, the second cylinder body has a second through hole penetrating the second cylinder body; The second rotating shaft is rotatably disposed within the second through hole; the first end of the second rotating shaft is connected to the connecting member. A connecting rod is fixedly connected to the second end of the second rotating shaft. The connecting rod is used to adjust the position of the straightened strip so that the center line of the liner and the center line of the straightened strip are aligned.

11. The rolling equipment according to claim 1, 5, or 9, characterized in that, The rolling equipment also includes a grinding device, which is located between the straightening device and the auxiliary device; The polishing device includes: The second rack has a second storage space; Third driving component; A grinding roller assembly is mounted on the second frame and located within the second accommodating space; the third driving member is drivenly connected to the grinding roller assembly; along the height direction of the second frame, the grinding roller assembly includes a first grinding roller and a second grinding roller; When grinding the straightened strip, the straightened strip is located between the first grinding roller and the second grinding roller.

12. The rolling equipment according to claim 11, characterized in that, The grinding device further includes: a fourth driving component and a cooling roller assembly, the cooling roller assembly being disposed on the second frame and located within the second accommodating space; the cooling roller assembly being located between the straightening device and the grinding roller assembly; the fourth driving component being drivenly connected to the cooling roller assembly; along the height direction of the second frame, the cooling roller assembly includes a first cooling roller and a second cooling roller; the cooling roller assembly further includes a cooling pipe, the cooling pipe being disposed within the first cooling roller and the second cooling roller; the inlet and outlet of the cooling pipe are respectively connected to a liquid supply assembly; the liquid supply assembly stores coolant; The second frame has a fourth through hole on its surface; the grinding device further includes an air extraction component and a cooler; the air extraction component is disposed on the second frame, located outside the second accommodating space, and communicates with the fourth through hole; the cooler is disposed on the second frame and located inside the second accommodating space.

13. A rolling system, characterized in that, include: The rolling equipment according to any one of claims 1 to 12.

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