Convex degree adjusting device for working roll of straightening machine and straightening machine

Abstract

The invention discloses a convexity adjusting device for a working roll of a straightening machine and the straightening machine, relates to the technical field of straightening machines, and aims to solve the problems of how to flexibly and dynamically adjust each supporting roll on the straightening machine and improve the straightening precision and the surface quality of a plate. The convexity adjusting device for the working roll of the straightening machine is applied to the straightening machine, and the straightening machine comprises a rack and the working roll rotationally arranged on the rack. The convexity adjusting device for the working roll of the straightening machine comprises a supporting roll structure, a supporting roll structure and an adjusting device, the supporting roller structures are sequentially arranged in the axial direction of the working roller. The lifting structures are correspondingly and fixedly connected with the supporting roller structures, and the supporting roller structures are located between the lifting structures and the working rollers; the lifting structure is used for driving the supporting roll structure to press or be away from the area of the working roll corresponding to the supporting roll structure; the first mounting plate is fixed on the rack; the end, away from the supporting roller structure, of the lifting structure is fixedly connected with the first mounting plate.

Description

Technical Field

[0001] The present invention relates to the technical field of straightening machines, in particular to a straightening machine working roll crown adjustment device and a straightening machine. Background Art

[0002] Heavy and wide plates are widely used in key national projects, national defense construction, and various infrastructure sectors, encompassing industries such as shipbuilding, bridges, electricity, automobiles, chemicals, machinery, construction, and oil pipelines. To ensure plate flatness and eliminate stress, straightening machines are crucial finishing equipment, and their performance directly impacts the surface quality and overall flatness of the plate.

[0003] Currently, in actual production applications, the crown adjustment of the work rolls of a straightening machine mainly relies on hydraulic cylinders to push wedge blocks, thereby adjusting the crown of the backup rolls and thus adjusting the crown of the work rolls online. Specifically, the extension and retraction of the hydraulic cylinders drives the movement of the wedge blocks, which in turn drives the movement of the backup rolls, thereby achieving crown adjustment of the work rolls. However, this adjustment method uses a common set of wedge blocks for multiple backup rolls, making it impossible to adjust the backup rolls individually, which affects the accuracy of crown adjustment of the work rolls.

[0004] Therefore, how to achieve flexible and dynamic adjustment of each supporting roller on the straightening machine to improve the straightening accuracy and surface quality of the plate has become a technical problem that needs to be solved urgently in the current industry. Summary of the Invention

[0005] The object of the present invention is to provide a straightening machine working roller crown adjustment device and a straightening machine, which are used to achieve flexible and dynamic adjustment of each supporting roller on the straightening machine to improve the straightening accuracy and surface quality of the plate.

[0006] To achieve the above-mentioned objectives, in a first aspect, the present invention provides a device for adjusting the convexity of the working rolls of a straightening machine, the device being applied to a straightening machine, the straightening machine comprising a frame and working rolls rotatably mounted on the frame. The device for adjusting the convexity of the working rolls of a straightening machine comprises: a support roller structure in rolling contact with the working rolls; a plurality of support roller structures arranged in sequence along the axial direction of the working rolls; a lifting structure fixedly connected to the plurality of support roller structures, the support roller structure being located between the lifting structure and the working rolls; the lifting structure being used to drive the support roller structure to press against or away from the area of ​​the working roll corresponding to the support roller structure; a first mounting plate fixed to the frame; and a first mounting plate fixedly connected to the end of the lifting structure away from the support roller structure.

[0007] In one implementation, the lifting structure includes: a second mounting plate, one end of the second mounting plate being fixedly connected to the first mounting plate; A lifting assembly is escalably disposed on a side surface of the second mounting plate; one end of the lifting assembly is fixedly connected to the supporting roller structure; A driving assembly is connected to the lifting assembly in a power connection; the driving assembly is used to drive the lifting assembly so that the lifting assembly drives the support roller structure to press or move away from the area of ​​the working roller corresponding to the support roller structure.

[0008] In one implementation, the lifting assembly includes: a first substrate, wherein two first substrates are arranged opposite to each other and spaced apart; a first connecting plate, wherein both ends of the first connecting plate are respectively connected to the first base plate; a first accommodation space is defined between the assembled first base plate and the first connecting plate; a first guide structure is provided on the first connecting plate; a second guide structure is provided on a side surface of the second mounting plate along a direction from the first mounting plate to the supporting roller structure, and the first connecting plate is guide-connected to the second guide structure via the first guide structure; a lifting rod, one end of which is fixedly connected to the first substrate close to the supporting roller structure, and the other end of which is fixedly connected to the supporting roller structure; A cam is rotatably disposed in the first accommodating space; the driving assembly is dynamically connected to the cam so that the cam drives the first substrate and the first connecting plate to approach or move away from the supporting roller structure.

[0009] In one implementation, the lifting assembly further includes: Rotating wheel; a mounting groove penetrating the first substrate is provided on the first substrate, the rotating wheel is located in the mounting groove and is rotatably connected to the inner wall of the mounting groove; the rotating wheel is in rolling contact with the cam, and the axial direction of the rotating wheel is parallel to the axial direction of the cam.

[0010] In one implementation, the lifting assembly further includes: a limiting frame, provided on a side of the second mounting plate facing the first connecting plate, and located between the supporting roller structure and the first base plate close to the supporting roller structure; Along the height direction of the limit frame, the limit frame is provided with a through hole passing through the limit frame; one end of the lifting rod passes through the through hole and is fixedly connected to the first substrate close to the supporting roller structure, and the lifting rod can move up and down relative to the limit frame.

[0011] In one implementation, the drive component includes: A mounting frame fixedly connected to the first mounting plate; A driving member is provided in the mounting frame; A transmission shaft, one end of which is connected to the driving member by power, and the other end of which is connected to the cam by power.

[0012] In one implementation, the driving member includes a dual-axis motor, one supporting roller structure is correspondingly connected to two groups of lifting structures, and the two groups of lifting structures share one dual-axis motor.

[0013] In one implementation, the support roller structure includes: a second substrate, two second substrates being arranged opposite to each other and spaced apart; a second connecting plate, the second connecting plate including two opposite ends, the two ends of the second connecting plate being respectively connected to the second base plate; a second accommodation space being defined between the assembled second base plate and the second connecting plate; The first supporting roller is located in the second accommodating space and is rotatably connected to the two second base plates. The axial direction of the first supporting roller is parallel to the axial direction of the working roller, and the first supporting roller is in rolling contact with the working roller.

[0014] In the crown adjustment device for the working rolls of a straightening machine provided by the present invention, multiple lifting structures are fixedly connected to corresponding multiple supporting roller structures, and the lifting structures are used to drive the supporting roller structures to press against or move away from the area of ​​the working roll corresponding to the supporting roller structure. Each supporting roller structure corresponds to at least one lifting structure, and the lifting structure is used to adjust the amount of pressure applied by each supporting roller structure to the corresponding working roll area. This not only enables flexible and dynamic adjustment of each supporting roller structure on the straightening machine, but also, by adjusting the amount of pressure applied to different areas of the working roll, achieves segmented downward pressure on the working roll using multiple supporting roller structures and multiple lifting structures. At this time, targeted pressure is applied according to the actual conditions of different positions of the plate to be straightened, which can better adapt to the complex shape of the plate to be straightened, thereby improving the straightening accuracy and surface quality of the plate to be straightened. In other words, the segmented downward pressure can apply differentiated pressure according to the degree of bending in different areas of the plate to be straightened. The working rollers can be pressed down in segments through multiple supporting roller structures and multiple lifting structures, and the downward pressure of each section of the working roller on the plate to be straightened can be accurately controlled to achieve precise control of the deformation of the plate to be straightened and better meet production requirements.

[0015] In a second aspect, the present invention further provides a straightening machine. The straightening machine comprises a frame, work rolls, and the work roll crown adjustment device for the straightening machine described in the above technical solution. The work rolls are rotatably mounted on the frame and are in rolling contact with the support roll structure included in the work roll crown adjustment device for the straightening machine. The first mounting plate included in the work roll crown adjustment device for the straightening machine is fixed to the frame.

[0016] In one implementation, the straightening machine further comprises: Bearing seats, two of which are symmetrically arranged in the frame; Rotary bearings, the rotary bearings are rotatably mounted in the bearing seats; the working rolls are rotatably mounted between the two rotary bearings; And / or, the working rolls include a first working roll and a second working roll rotatably disposed on the frame, the first working roll and the second working roll are spaced apart from top to bottom; the axial direction of the first working roll is parallel to the axial direction of the second working roll; the support roll structure is in rolling contact with the first working roll; the straightening machine further includes: A plurality of support roller assemblies are sequentially arranged along the axial direction of the second working roller, and the support roller assemblies are in rolling contact with the second working roller; A third mounting plate is fixed on the frame; the support roller assembly is fixedly arranged on the third mounting plate; The support roller assembly comprises: A carrier frame, fixedly mounted on the third mounting plate; The second supporting roller is rotatably arranged inside the carrier frame; the second supporting roller is in rolling contact with the second working roller, and the axial direction of the second supporting roller is parallel to the axial direction of the second working roller.

[0017] The beneficial effects of the straightening machine provided by the present invention are the same as the beneficial effects of the crown adjustment device for the working roll of the straightening machine described in the above technical solution, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a structural diagram of the crown adjustment mechanism of the working roll of the straightening machine in the prior art; Figure 2 A schematic diagram of a portion of the structure of a working roll crown adjustment device for a straightening machine according to an embodiment of the present invention; Figure 3 Schematic diagram of part of the structure of the straightening machine in the embodiment of the present invention Figure 1 ; Figure 4 For the embodiment of the present invention Figure 3 A schematic diagram of the structure at point A in the middle; Figure 5 Schematic diagram of part of the structure of the straightening machine in the embodiment of the present invention Figure 2 ; Figure 6 For the embodiment of the present invention Figure 5 A magnified schematic diagram of the structure at B in the middle; Figure 7 In the embodiment of the present invention Figure 3 Main view of the middle straightening machine; Figure 8 In the embodiment of the present invention Figure 3 Side view of the middle straightening machine; Figure 9 In the embodiment of the present invention Figure 3 Top view of the straightening machine.

[0019] Reference numerals: 1-wedge block, 2-support roller, 3-working roller, 30-first working roller, 31-second working roller, 4-hydraulic cylinder, 5-plate to be straightened, 6-support roller structure, 60-second base plate, 61-second connecting plate, 62-first support roller, 7-lifting structure, 70-second mounting plate, 700-second guide structure, 71-lifting assembly, 710-first base plate, 711-first connecting plate, 712-lifting rod, 713- Cam, 714-rotating wheel, 715-mounting groove, 716-limiting frame, 717-first guide structure, 718-through hole, 72-driving assembly, 720-mounting frame, 721-driving member, 722-transmission shaft, 8-first mounting plate, 90-fixing sleeve, 900-mounting hole, 91-bearing seat, 92-rotating bearing, 93-supporting roller assembly, 930-carrying frame, 931-second supporting roller, 94-third mounting plate. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined. "Several" means one or more, unless otherwise specifically defined.

[0023] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and may encompass internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0025] Heavy and wide plates are widely used in key national projects, national defense construction, and various infrastructure sectors, encompassing industries such as shipbuilding, bridges, electricity, automobiles, chemicals, machinery, construction, and oil pipelines. To ensure plate flatness and eliminate stress, straightening machines are crucial finishing equipment, and their performance directly impacts the surface quality and overall flatness of the plate.

[0026] At present, in actual production applications, the crown adjustment of the straightening machine work roll mainly relies on the hydraulic cylinder to push the wedge block to adjust the crown of the support roll, and then adjust the crown of the work roll online. Please refer to Figure 1 , Figure 1 It is a structural diagram of the crown adjustment mechanism of the working roll of the straightening machine in the prior art.

[0027] like Figure 1 As shown, the crown adjustment mechanism of the working roll of the straightening machine in the prior art includes: stacked wedge blocks 1, support rolls 2, working rolls 3 and hydraulic cylinders 4, one of the stacked wedge blocks 1 is connected to the hydraulic cylinder 4, and the other is fixed.

[0028] In the actual application process, Figure 1 The plate to be straightened is clamped between the roll gaps of the two working rolls 3 shown ( Figure 1 (not shown in the figure), the thickness of the plate to be straightened is adjusted by the rotation of the working roller 3. When the thickness of the plate to be straightened is uneven, the hydraulic cylinder 4 pushes the wedge block 1 connected to it to drive the support roller 2 to move toward the working roller 3, thereby adjusting the crown of the working roller 3 to make the thickness of the straightened plate uniform.

[0029] However, if Figure 1As shown, multiple support rollers 2 in this adjustment mechanism share a set of wedge blocks 1. When the wedge blocks 1 are moved by the hydraulic cylinder 4, all support rollers 2 connected to the wedge blocks 1 move together, thereby adjusting the crown of the work rolls 3. This shows that in the existing leveler work roll adjustment mechanism, the crown adjustment process of the support rollers 2 and the wedge blocks 1 on the work rolls 3 is not flexible. In other words, in the above adjustment method, multiple support rollers 2 share a set of wedge blocks 1, which cannot achieve individual adjustment of the support rollers 2, affecting the accuracy of the crown adjustment of the work rolls 3.

[0030] Therefore, how to achieve flexible and dynamic adjustment of each supporting roller 2 on the straightening machine to improve the straightening accuracy and surface quality of the plate has become a technical problem that needs to be solved urgently in the current industry.

[0031] In addition, if Figure 1 As shown, when adjusting crown using wedge block 1 and hydraulic cylinder 4, the action of wedge block 1 causes different pressures on support roller 2 at different locations along its length. On the side pushed by wedge block 1, support roller 2 experiences greater pressure. As the position of wedge block 1 changes, the pressure gradually decreases toward the other side, resulting in an uneven distribution along its length. This uneven pressure not only affects the straightening effect of the sheet material being straightened, but also can cause residual stress within support roller 2 due to the varying pressures in different areas of support roller 2, potentially damaging it.

[0032] In order to solve the above technical problems, firstly, see Figures 2 to 9 An embodiment of the present invention provides a crown adjustment device for a straightening machine work roll. The device is applied to a straightening machine comprising a frame and a work roll 3 rotatably mounted on the frame. The device comprises a support roll structure 6, a lifting structure 7, and a first mounting plate 8. The support roll structures 6 are in rolling contact with the work roll 3, with multiple support roll structures 6 arranged sequentially along the axial direction M of the work roll 3. The lifting structures 7 are fixedly connected to the multiple support roll structures 6 and are also arranged sequentially along the axial direction M of the work roll 3. The support roll structures 6 are located between the lifting structures 7 and the work roll 3. The lifting structures 7 are used to drive the support roll structures 6 to press against or move away from the area of ​​the work roll 3 corresponding to the support roll structures 6. The first mounting plate 8 is fixed to the frame, with the lifting structure 7 positioned between the first mounting plate 8 and the support roll structure 6. The end of the lifting structure 7 away from the support roll structure 6 is fixedly connected to the first mounting plate 8. It should be noted that the specific number of support roll structures 6 and the lifting structures 7 is not specifically limited herein and can be set according to actual circumstances.

[0033] See also Figures 1 to 9In the straightening machine work roll crown adjustment device provided by an embodiment of the present invention, multiple lifting structures 7 are fixedly connected to the corresponding multiple support roller structures 6, and the lifting structures 7 are used to drive the support roller structures 6 to press against or move away from the area of ​​the work roll 3 corresponding to the support roller structure 6. Each support roller structure 6 corresponds to at least one lifting structure 7, and the lifting structure 7 is used to adjust the pressure applied by each support roller structure 6 to the corresponding area of ​​the work roll 3. This not only achieves flexible and dynamic adjustment of each support roller structure 6 on the straightening machine; at the same time, by adjusting the pressure applied to different areas of the work roll 3, the multiple support roller structures 6 and the multiple lifting structures 7 can be used to achieve segmented downward pressure on the work roll 3. At this time, targeted pressure is applied according to the actual conditions of different positions of the plate 5 to be straightened, which can better adapt to the complex shape of the plate 5 to be straightened, thereby improving the straightening accuracy and surface quality of the plate 5 to be straightened. In other words, the segmented downward pressure can apply differentiated pressures based on the degree of curvature of different regions of the plate 5 to be straightened. By using multiple support roller structures 6 and multiple lifting structures 7 to perform segmented downward pressure on the work roller 3, the downward pressure applied by each section of the work roller 3 on the plate 5 to be straightened can be precisely controlled, thereby achieving precise control of the deformation of the plate 5 to be straightened and better meeting production requirements. Furthermore, since each support roller structure 6 in this application corresponds to at least one lifting structure 7, compared to the case where the support rollers 2 share a set of wedge blocks 1, the probability of stress concentration on the support roller structure 6 is reduced, thereby reducing or eliminating the probability of residual stress within the support roller structure 6, extending the service life of the support roller structure 6, reducing the wear and tear of the straightening machine's work roller crown adjustment device, and reducing the cost of using the straightening machine's work roller crown adjustment device.

[0034] In an alternative approach, see Figures 3 to 5 The above-mentioned straightening machine working roll crown adjustment device may include a whole first mounting plate 8, or may include a plurality of first mounting plates 8 distributed at intervals. When the straightening machine working roll crown adjustment device includes a plurality of first mounting plates 8 distributed at intervals, the number of first mounting plates 8 may be the same as the number of working rolls 3 in rolling contact with the support roll structure 6. In some embodiments, the first mounting plates 8 and the working rolls 3 in rolling contact with the support roll structure 6 correspond one to one. Along the length direction of the first mounting plate 8 (i.e., the axial direction M of the working roll 3), fixed sleeves 90 are respectively provided at both ends of the first mounting plate 8, and the fixed sleeves 90 have mounting holes 900. The first mounting plate 8 is mounted on the frame of the straightening machine by bolts matching the mounting holes 900.

[0035] As a possible implementation, see Figures 2 to 4The lifting structure 7 includes a second mounting plate 70, a lifting assembly 71, and a drive assembly 72. One end of the second mounting plate 70 is fixedly connected to the first mounting plate 8. The lifting assembly 71 is movably mounted on the side of the second mounting plate 70 along the height direction of the second mounting plate 70 (i.e., from the support roller structure 6 to the first mounting plate 8). One end of the lifting assembly 71 is fixedly connected to the support roller structure 6. The drive assembly 72 is in a power connection with the lifting assembly 71 and is used to drive the lifting assembly 71, so that the lifting assembly 71 drives the support roller structure 6 to press against or move away from the area of ​​the work roll 3 corresponding to the support roller structure 6.

[0036] In an alternative approach, see Figures 2 to 4 The lifting assembly 71 includes: a first base plate 710 , a first connecting plate 711 , a lifting rod 712 and a cam 713 .

[0037] See also Figures 2 to 4 The two first substrates 710 are arranged opposite to each other and spaced apart, and the first connecting plate 711 has opposite two ends, and the two ends of the first connecting plate 711 are respectively connected to the first substrate 710; a first accommodating space is provided between the assembled first substrate 710 and the first connecting plate 711; a first guide structure 717 is provided on the first connecting plate 711; along the direction from the first mounting plate 8 to the supporting roller structure 6, a second guide structure 700 is provided on the side of the second mounting plate 70, and the first connecting plate 711 is guided and connected to the second guide structure 700 through the first guide structure 717.

[0038] See also Figures 2 to 4 The first guide structure 717 and the second guide structure 700 cooperate to define the relative movement direction of the first connecting plate 711 and the second mounting plate 70. This reduces or prevents the first connecting plate 711 from shifting relative to the second mounting plate 70, thereby preventing the lifting assembly 71 from shifting relative to the second mounting plate 70. This ensures stability when the lifting structure 7 drives the support roller structure 6 to press against the area of ​​the work roll 3 corresponding to the support roller structure 6, thereby improving the stability of the straightening machine work roll crown adjustment device during use.

[0039] See also Figures 2 to 4 , illustratively, the first guide structure 717 can be a groove, and the second guide structure 700 can be a guide rail slider that matches the groove. Of course, the first guide structure 717 can also be a guide rail slider, and the second guide structure 700 can be a groove that matches the guide rail slider. In the embodiment of the present invention, the first guide structure 717 is a limiting slide groove provided on the first connecting plate 711, and the second guide structure 700 is a slide rail provided on the side of the second mounting plate 70 facing the first connecting plate 711. The limiting slide groove matches the slide rail, and the length of the slide rail is less than or equal to the height of the second mounting plate 70. Further, see Figures 2 to 4 The end of the second mounting plate 70 is fixedly connected to the first mounting plate 8 , and there is a certain distance between the end of the first connecting plate 711 close to the first mounting plate 8 and the first mounting plate 8 , reserving lifting space for the lifting component 71 .

[0040] In an alternative approach, see Figure 2 The lifting rod 712 includes two opposite ends, one end of the lifting rod 712 is fixedly connected to the first base plate 710 close to the supporting roller structure 6, and the other end of the lifting rod 712 is fixedly connected to the supporting roller structure 6.

[0041] In an alternative approach, see Figures 2 to 4 The cam 713 is rotatably disposed within the first accommodation space; the drive assembly 72 is in power connection with the cam 713, so that the cam 713 drives the first substrate 710 and the first connecting plate 711 toward or away from the support roller structure 6. The specific structure of the cam 713 is not specifically limited herein; as long as the cam 713 can drive the first substrate 710 and the first connecting plate 711 toward or away from the support roller structure 6 under the drive of the drive assembly 72, it will be sufficient.

[0042] In an alternative approach, see Figures 2 to 4 The lifting assembly 71 further includes a rotating wheel 714. A mounting slot 715 is defined on each of the first substrates 710 and extends through the first substrates 710 in a direction from one first substrate 710 to the other. The rotating wheel 714 is located within the mounting slot 715 and is rotatably connected to the inner wall of the mounting slot 715. The rotating wheel 714 is in rolling contact with the cam 713, and the axial direction of the rotating wheel 714 is parallel to the axial direction of the cam 713.

[0043] See also Figures 2 to 4 Since the rotating wheel 714 is in rolling contact with the cam 713, when the cam 713 rotates, the friction between the cam 713 and the first substrate 710 can be reduced, so that the resistance of the straightening machine working roller crown adjustment device is reduced when working, and the operation is smoother.

[0044] In some embodiments, see Figures 2 to 4, both first substrates 710 are provided with mounting grooves 715, and each mounting groove 715 is provided with at least one rotating wheel 714. As for the number of rotating wheels 714 provided in each mounting groove 715, there is no specific limitation here and it can be set according to actual conditions. For example, two rotating wheels 714 are rotatably provided in each mounting groove 715. Furthermore, the rotating wheels 714 are rotatably connected to the interior of the mounting groove 715 via a transverse axis, the transverse axis is fixedly connected to the groove walls on both sides of the mounting groove 715, and the rotating wheels 714 rotate in the middle of the transverse axis. It should be noted that when a rotating wheel 714 is provided in the mounting groove 715 provided on the first substrate 710 near the lifting rod 712, the rotating wheel 714 is staggered with the lifting rod 712 to ensure that the rotating wheel 714 and the lifting rod 712 both operate normally.

[0045] In an alternative approach, see Figures 2 to 4 The lifting assembly 71 further includes a limiting frame 716. The limiting frame 716 is disposed on the side of the second mounting plate 70 facing the first connecting plate 711 and is located between the support roller structure 6 and the first base plate 710 adjacent to the support roller structure 6. For example, the limiting frame 716 is fixedly mounted on the side of the second mounting plate 70 facing the first connecting plate 711 using bolts. Alternatively, the limiting frame 716 may be fixed by bonding or welding.

[0046] See also Figures 2 to 4 The limit frame 716 has a through hole 718 extending therethrough along its height. One end of the lifting rod 712 extends through the through hole 718 and is fixedly connected to the first base plate 710 near the support roller structure 6. The lifting rod 712 can move up and down relative to the limit frame 716.

[0047] See also Figures 2 to 4 On the one hand, the through-hole 718 acts as a limiter for the lifting rod 712, preventing it from shifting during the lifting process. On the other hand, the limiter 716 also serves as a guide, further ensuring the direction of the lifting rod 712 during lifting (i.e., up and down movement relative to the limiter 716). This further ensures the stability of the lifting structure 7 when it drives the support roller structure 6 to press against the area of ​​the work roll 3 corresponding to the support roller structure 6, thereby further improving the stability of the straightening machine work roll crown adjustment device during operation. In actual use, when the lifting rod 712 slides up and down within the through-hole 718, relying on the lifting and lowering of the lifting assembly 71 as the driving power source, the lifting rod 712 converts the force generated by the rotation of the cam 713 into a vertical driving force. During this process, the lifting rod 712 drives the support roller structure 6 up and down, adjusting its height position and thereby pressing down on the work roll 3.

[0048] See also Figure 4For example, the center of through hole 718 coincides with the geometric center of the cross section of retaining frame 716. This ensures the structural strength of retaining frame 716 with through hole 718, avoids significant variations in the circumferential strength of through hole 718, and reduces or prevents damage to retaining frame 716.

[0049] As a possible implementation, see Figures 2 to 4 The drive assembly 72 includes a mounting frame 720, a driving member 721, and a transmission shaft 722. The mounting frame 720 is fixedly connected to the first mounting plate 8, and the driving member 721 is disposed within the mounting frame 720. One end of the transmission shaft 722 is in power connection with the driving member 721, and the other end of the transmission shaft 722 is in power connection with the cam 713.

[0050] For example, see Figure 2 The above-mentioned mounting frame 720 is a U-shaped mounting frame, and the driving member 721 is installed in the space of the U-shaped mounting frame.

[0051] The driving member 721 can be a motor. For example, the driving member 721 can be a dual-axis motor. In this case, one supporting roller structure 6 is connected to two sets of lifting structures 7, and the two sets of lifting structures 7 share a single dual-axis motor. The dual-axis motor is connected to the cam 713 via a transmission shaft 722, so that the cams 713 at both ends of the dual-axis motor rotate synchronously, further ensuring stable output of the driving force from the cam 713.

[0052] For details, see Figure 2 The output shafts at both ends of the dual-axis motor are both connected to the transmission shaft 722, and the end of the transmission shaft 722 is fixedly connected to the cam 713. The end of the transmission shaft 722 is fixedly connected to the side edge of the cam 713, so that when the cam 713 rotates along the transmission shaft 722, it provides a driving force for the lifting assembly 71, so that the lifting assembly 71 can be lifted and lowered. The transmission shaft 722 transmits the torque generated by the dual-axis motor to the cam 713, so that the cam 713 obtains the power of rotation.

[0053] In some embodiments, see Figure 2 The drive assembly 72 is located in the middle of the support roller structure 6. Along the axial direction of the work roll 3, a lifting assembly 71 is provided on each side of the drive assembly 72. The lifting assembly 71 is movably mounted on the side of the second mounting plate 70. In this manner, the support roller structure 6 can be quickly and stably driven toward or away from the work roll 3, thereby improving work efficiency.

[0054] As a possible implementation, see Figures 2 to 4The support roller structure 6 includes a second base plate 60, a second connecting plate 61, and a first support roller 62. The two second base plates 60 are spaced apart from each other. The second connecting plate 61 has two opposing ends, each connected to the second base plates 60. After assembly, a second accommodating space is defined between the second base plates 60 and the second connecting plate 61. The first support roller 62 is located within the second accommodating space and is rotatably connected to the two second base plates 60. The axial direction of the first support roller 62 is parallel to the axial direction of the work roller 3, and the first support roller 62 is in rolling contact with the work roller 3.

[0055] For example, see Figure 2 The structure formed by the second base plate 60 and the second connecting plate 61 is generally N-shaped or U-shaped. It should be noted that the "N-shaped or U-shaped" herein depends on the relative positional relationship between the support roll structure 6 and the work roll 3. The "N-shaped or U-shaped" term is used here only to represent the shape of the structure formed by the second base plate 60 and the second connecting plate 61. Furthermore, the materials of the second base plate 60, the second connecting plate 61, and the first support roll 62 are not specifically limited.

[0056] Combined with the above description, see Figures 2 to 4 The other end of the lifting rod 712 included in the lifting structure 7 is fixedly connected to the second connecting plate 61 included in the support roller structure 6. When the lifting rod 712 is lifted and lowered in the direction from the first mounting plate 8 to the work roller 3, it drives the second connecting plate 61 fixedly connected to the lifting rod 712 to rise and fall, thereby driving the first support roller 62 to rise and fall, so that the first support roller 62 approaches or moves away from the corresponding area of ​​the work roller 3, achieving segmented downward pressure on the work roller 3, thereby applying different pressures to different areas of the work roller 3.

[0057] In a second aspect, an embodiment of the present invention further provides a straightening machine. Figures 2 to 9 , the straightening machine includes a frame ( Figures 2 to 9 The work rolls 3 are rotatably mounted on a frame and are in rolling contact with a support roll structure 6 included in the straightening machine work roll crown adjustment device. The first mounting plate 8 included in the straightening machine work roll crown adjustment device is fixed to the frame.

[0058] The beneficial effects of the straightening machine provided by the embodiment of the present invention are the same as the beneficial effects of the crown adjustment device for the working roll of the straightening machine described in the above technical solution, and will not be described in detail here.

[0059] As a possible implementation, see Figure 5 and Figure 6The straightening machine further includes: a bearing seat 91 and a rotating bearing 92. The two bearing seats 91 are symmetrically arranged in the frame, and the rotating bearing 92 is correspondingly rotatably installed in the bearing seat 91; the working roll 3 is rotatably installed between the two rotating bearings 92.

[0060] See also Figure 5 and Figure 6 The inner ring of the rotating bearing 92 fits perfectly with the work roll 3, while the outer ring of the rotating bearing 92 fits perfectly with the bearing seat 91. This precisely secures the position of the work roll 3, ensuring its coaxiality and stability during rotation and preventing axial or radial misalignment. Furthermore, the bearing seat 91 provides a rigid mounting base for the rotating bearing 92, absorbing radial and axial loads from rotating components, distributing the load to avoid localized stress concentration and extending the service life of the work roll 3. It should be noted that the number of bearing seats 91 and rotating bearings 92 can be adjusted based on the number of work rolls 3.

[0061] As a possible implementation, see Figures 2 to 9 The working roll 3 includes a first working roll 30 and a second working roll 31 rotatably arranged on the frame. The first working roll 30 and the second working roll 31 are arranged at intervals from top to bottom; the axial direction of the first working roll 30 is parallel to the axial direction of the second working roll 31.

[0062] See also Figures 2 to 9 , the number of the first working rolls 30 and the number of the second working rolls 31 are not equal. Exemplarily, the number of the second working rolls 31 is one more than the number of the working rolls 3, and the first working rolls 30 and the second working rolls 31 are staggered.

[0063] In some embodiments, see Figures 2 to 9 The working rollers 3 may include six first working rollers 30 located above the plate 5 to be straightened, the above-mentioned supporting roller structure 6 is in rolling contact with the first working rollers 30, and seven second working rollers 31 located below the plate 5 to be straightened. The first working rollers 30 and the second working rollers 31 are staggered.

[0064] As a possible implementation, see Figures 2 to 9 The straightening machine further includes: a support roller assembly 93 and a third mounting plate 94. Multiple support roller assemblies 93 are arranged in sequence along the axial direction of the second working roll 31, and the support roller assemblies 93 are in rolling contact with the second working roll 31; the third mounting plate 94 is fixed to the frame, and the support roller assemblies 93 are fixedly mounted on the third mounting plate 94.

[0065] It should be noted that see Figures 2 to 9, the number of the above-mentioned supporting roller assemblies 93 can be set according to actual conditions and is not specifically limited here. The above-mentioned straightening machine can include an entire third mounting plate 94, or it can include multiple third mounting plates 94 distributed at intervals. When the straightening machine includes multiple third mounting plates 94 distributed at intervals, the number of third mounting plates 94 can be the same as the number of second working rollers 31. Combined with the above description, six first mounting plates 8 distributed at intervals are correspondingly arranged above the six first working rollers 30, and seven third mounting plates 94 distributed at intervals are correspondingly arranged below the seven second working rollers 31. Furthermore, during actual assembly, the third mounting plate 94 is fixedly installed near the bottom of the frame.

[0066] As a possible implementation, see Figures 2 to 9 The support roller assembly 93 includes a carrier frame 930 and a second support roller 931. The carrier frame 930 is fixedly mounted on a third mounting plate 94, while the second support roller 931 is rotatably mounted within the carrier frame 930. The support roller structure 6 included in the straightening machine work roll crown adjustment device is in rolling contact with the first work roll 30, while the second support roller 931 is in rolling contact with the second work roll 31. The axial direction of the second support roller 931 is parallel to the axial direction of the second work roll 31. The support roller assembly 93 and the third mounting plate 94 provide support for the second work roll 31. Exemplarily, the carrier frame 930 can be U-shaped or N-shaped. It should be noted that the "N-shaped or U-shaped" herein depends on the relative position between the carrier frame 930 and the second work roll 31. The term "N-shaped or U-shaped" is used only to refer to the shape of the carrier frame 930.

[0067] The following describes the working process of the straightening machine working roll crown adjustment device in the straightening machine in a possible implementation manner. It should be noted that the following description is only for understanding and is not used for specific limitation.

[0068] See also Figures 2 to 9After the straightening machine work roll crown adjustment device is assembled with the straightening machine, the sheet 5 to be straightened is placed in the roll gap between the first work roll 30 and the second work roll 31. The straightening machine's drive element is activated to drive the straightening machine, thereby moving the sheet 5 to be straightened. Based on data about the sheet 5 to be straightened acquired by an external monitoring structure, the height of different areas of the first work roll 30 above the sheet 5 to be straightened is adjusted. Specifically, the dual-axis motor corresponding to the area of ​​the first work roll 30 requiring adjustment is activated. The dual-axis motor rotates the drive shaft 722, which in turn rotates the cam 713. This rotation of the cam 713 causes the structure formed by the first connecting plate 711 and the two first base plates 710 (referred to as a lifting frame for ease of description) to rise and fall in the direction from the first work roll 30 to the first mounting plate 8. During this process, the cam 713 rolls in contact with the rotating wheel 714, causing the rotating wheel 714 to rotate. Because one end of the lifting rod 712 is fixedly connected to the first base plate 710 near the support roller structure 6, when the lifting frame is raised or lowered, the lifting rod 712 is also driven to rise or fall. Because the other end of the lifting rod 712 is fixedly connected to the support roller structure 6, when the lifting rod is raised or lowered, the lifting rod 712 drives the structure formed by the second connecting plate 61 and the two second base plates 60 (for ease of description, defined as the support roller frame) to rise or fall. The support roller frame drives the first support roller 62 to rise or fall, thereby causing the first support roller 62 to move closer to or further away from the area of ​​the first working roller 30 corresponding to the first support roller 62, thereby causing the first support roller 62 to apply a pressure that meets the actual requirements to the area of ​​the first working roller 30 corresponding to the first support roller 62.

[0069] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0070] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A straightening machine working roll crown adjustment device, applied to a straightening machine, wherein the straightening machine comprises a frame and a working roll rotatably arranged on the frame; characterized in that: The straightening machine working roll crown adjustment device comprises: A support roller structure is in rolling contact with the working roller; a plurality of the support roller structures are arranged in sequence along the axial direction of the working roller; A lifting structure fixedly connected to the plurality of support roller structures, wherein the support roller structures are located between the lifting structure and the working rollers; the lifting structure is used to drive the support roller structures to press against or move away from the area of ​​the working rollers corresponding to the support roller structures; A first mounting plate is fixed on the frame; an end of the lifting structure away from the supporting roller structure is fixedly connected to the first mounting plate.

2. The crown adjustment device for the working roll of a straightening machine according to claim 1, characterized in that: The lifting structure includes: a second mounting plate, one end of the second mounting plate being fixedly connected to the first mounting plate; A lifting assembly is escalably disposed on a side surface of the second mounting plate; one end of the lifting assembly is fixedly connected to the supporting roller structure; A driving assembly is connected to the lifting assembly in a power connection; the driving assembly is used to drive the lifting assembly so that the lifting assembly drives the support roller structure to press or move away from the area of ​​the working roller corresponding to the support roller structure.

3. The crown adjustment device for the working roll of a straightening machine according to claim 2, characterized in that: The lifting assembly comprises: a first substrate, wherein two first substrates are arranged opposite to each other and spaced apart; a first connecting plate, wherein both ends of the first connecting plate are respectively connected to the first base plate; a first accommodation space is defined between the assembled first base plate and the first connecting plate; a first guide structure is provided on the first connecting plate; a second guide structure is provided on a side surface of the second mounting plate along a direction from the first mounting plate to the supporting roller structure, and the first connecting plate is guide-connected to the second guide structure via the first guide structure; a lifting rod, one end of which is fixedly connected to the first substrate close to the supporting roller structure, and the other end of which is fixedly connected to the supporting roller structure; A cam is rotatably disposed in the first accommodating space; the driving assembly is dynamically connected to the cam so that the cam drives the first substrate and the first connecting plate to approach or move away from the supporting roller structure.

4. The crown adjustment device for the working roll of a straightening machine according to claim 3, characterized in that: The lifting assembly further comprises: Rotating wheel; a mounting groove penetrating the first substrate is provided on the first substrate, the rotating wheel is located in the mounting groove and is rotatably connected to the inner wall of the mounting groove; the rotating wheel is in rolling contact with the cam, and the axial direction of the rotating wheel is parallel to the axial direction of the cam.

5. The crown adjustment device for the working roll of a straightening machine according to claim 3 or 4, characterized in that: The lifting assembly further comprises: a limiting frame, provided on a side of the second mounting plate facing the first connecting plate, and located between the supporting roller structure and the first base plate close to the supporting roller structure; Along the height direction of the limit frame, the limit frame is provided with a through hole passing through the limit frame; one end of the lifting rod passes through the through hole and is fixedly connected to the first substrate close to the supporting roller structure, and the lifting rod can move up and down relative to the limit frame.

6. The crown adjustment device for the working roll of a straightening machine according to claim 3, characterized in that: The drive assembly includes: A mounting frame fixedly connected to the first mounting plate; A driving member is provided in the mounting frame; A transmission shaft, one end of which is connected to the driving member by power, and the other end of which is connected to the cam by power.

7. The crown adjustment device for the working roll of a straightening machine according to claim 6, characterized in that: The driving member includes a dual-axis motor, one supporting roller structure is correspondingly connected to two groups of lifting structures, and the two groups of lifting structures share one dual-axis motor.

8. The crown adjustment device for the working roll of a straightening machine according to claim 1, characterized in that: The support roller structure comprises: a second substrate, two second substrates being arranged opposite to each other and spaced apart; a second connecting plate, the second connecting plate including two opposite ends, the two ends of the second connecting plate being respectively connected to the second base plate; a second accommodation space being defined between the assembled second base plate and the second connecting plate; The first supporting roller is located in the second accommodating space and is rotatably connected to the two second base plates. The axial direction of the first supporting roller is parallel to the axial direction of the working roller, and the first supporting roller is in rolling contact with the working roller.

9. A straightening machine, characterized in that: include: frame; A working roller is rotatably mounted on the frame; The straightening machine working roll crown adjustment device according to any one of claims 1 to 8; the working roll is in rolling contact with the support roller structure included in the straightening machine working roll crown adjustment device; the first mounting plate included in the straightening machine working roll crown adjustment device is fixed to the frame.

10. The straightening machine according to claim 9, characterized in that The straightening machine also includes: Bearing seats, two of which are symmetrically arranged in the frame; Rotary bearings, the rotary bearings are rotatably mounted in the bearing seats; the working rolls are rotatably mounted between the two rotary bearings; And / or, the working rolls include a first working roll and a second working roll rotatably disposed on the frame, the first working roll and the second working roll are spaced apart from top to bottom; the axial direction of the first working roll is parallel to the axial direction of the second working roll; the support roll structure is in rolling contact with the first working roll; the straightening machine further includes: A plurality of support roller assemblies are sequentially arranged along the axial direction of the second working roller, and the support roller assemblies are in rolling contact with the second working roller; A third mounting plate is fixed on the frame; the support roller assembly is fixedly arranged on the third mounting plate; The support roller assembly comprises: A carrier frame, fixedly mounted on the third mounting plate; The second supporting roller is rotatably arranged inside the carrier frame; the second supporting roller is in rolling contact with the second working roller, and the axial direction of the second supporting roller is parallel to the axial direction of the second working roller.

Images