CN118287536A - Supporting roller assembly and straightener - Google Patents

Abstract

The invention discloses a supporting roller assembly and a straightener, relates to the technical field of plate straightening, and is used for realizing independent adjustment of convexity of each supporting roller and improving adjustment precision. The supporting roller assembly comprises a supporting roller, two supporting seats which are oppositely arranged, an eccentric circular ring and a driving mechanism, wherein the supporting roller is used for rolling contact with the working roller. The two supporting seats are arranged at two ends of the supporting roller respectively, and the supporting roller is rotatably arranged on the supporting seats. The outer wall of the eccentric circular ring is rotationally arranged on the supporting seat, and the eccentric circular ring is rotationally sleeved outside the supporting roller. The driving mechanism is arranged on the supporting seat and used for driving the eccentric circular ring to rotate so as to change the distance between the axis of the supporting roller and the axis of the working roller. The straightener comprises a bearing frame, an upper working roller, a lower working roller and a plurality of supporting roller assemblies, wherein the upper working roller is rotationally arranged on the bearing frame, and the lower working roller is rotationally arranged on the bearing frame.

Description

Support roller assembly and straightening machine

Technical Field

The invention relates to the technical field of plate straightening, in particular to a support roller assembly and a straightening machine.

Background technique

Wide and thick plate straightening machines usually use parallel roller straightening machines with upper and lower working rollers. With the rapid increase in demand for high-strength steel plates, steel production companies have higher and higher performance requirements for straightening machines. In order to meet the requirements, it is a common method to increase the straightening force of the straightening machine to meet production requirements without changing the number of working rollers of the straightening machine. Since the straightening force of the straightening machine is mainly borne by the support rollers, how to make the support rollers of the straightening machine withstand a larger load has been a difficult problem that researchers at home and abroad have been trying to overcome for a long time.

In the prior art, a wedge-shaped adjustment mechanism is generally used. Specifically, the extension and retraction of a hydraulic cylinder drives the wedge block to further drive the support roller to move, thereby adjusting the crown of the working roll. However, in this adjustment method, multiple support rollers share one wedge-shaped adjustment mechanism, and the support rollers cannot be adjusted individually, which affects the adjustment accuracy of the crown of the working roll.

Summary of the invention

The object of the present invention is to provide a support roller assembly and a straightening machine, which are used to achieve individual adjustment of the convexity of each support roller and improve the adjustment accuracy.

In order to achieve the above-mentioned purpose, in a first aspect, the present invention provides a support roller assembly, comprising a support roller, two support seats arranged opposite to each other, an eccentric ring and a driving mechanism, wherein the support roller is used for rolling contact with the working roller. The two support seats arranged opposite to each other are respectively arranged at both ends of the support roller, and the support roller is rotatably arranged on the support seats. The outer wall of the eccentric ring is rotatably arranged on the support seat, and the eccentric ring is rotatably sleeved outside the support roller. The driving mechanism is arranged on the support seat, and is used to drive the eccentric ring to rotate, so as to change the distance between the axis of the support roller and the axis of the working roller.

When the above technical solution is adopted, the eccentric ring is rotatably sleeved outside the support roller, and when the support roller and the working roller are in rolling contact, the support roller can rotate relative to the eccentric ring. When the driving mechanism drives the eccentric ring to rotate, the distance between the axis of the support roller and the axis of the working roller can be changed, thereby realizing the adjustment of the crown of the working roller by the support roller. The support roller assembly provided in the present application can adjust the crown of the working roller by adjusting a single support roller, and can improve the accuracy of adjusting the crown of the working roller.

In a second aspect, the present invention provides a straightening machine, comprising a carrier, an upper working roll, a lower working roll, and a plurality of support roll assemblies as described in the first aspect, wherein the upper working roll is rotatably arranged on the carrier, and the lower working roll is rotatably arranged on the carrier; the upper working roll is arranged opposite to the lower working roll. The carrier comprises an upper cover plate and a lower cover plate arranged opposite to each other, one support roll of at least one support roll assembly is in rolling contact with the upper working roll, and the support seat of the support roll assembly corresponding to the upper working roll is arranged on the upper cover plate; one support roll of at least one support roll assembly is in rolling contact with the lower working roll, and the support seat of the support roll assembly corresponding to the lower working roll is arranged on the lower cover plate.

The beneficial effects of the straightening machine described in the second aspect can refer to the beneficial effects of the support roller assembly described in the first aspect, and will not be described in detail here.

BRIEF DESCRIPTION OF THE DRAWINGS

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:

FIG1 is a partial schematic diagram of a straightening machine provided in the prior art;

FIG2 is a schematic diagram of a straightening machine provided in an embodiment of the present invention;

FIG3 is a schematic structural diagram of a support roller assembly provided in an embodiment of the present invention;

FIG4 is a schematic diagram of a section A in FIG3 ;

FIG5 is a partial cutaway schematic diagram of point A in FIG3 ;

FIG6 is a partial schematic diagram of a support base provided in an embodiment of the present invention;

FIG7 is a partial schematic diagram of an outer convex ring stator and a distribution plate provided in an embodiment of the present invention;

FIG8 is a schematic diagram showing the positional relationship between the stator and the rotor of the outer convex ring provided in an embodiment of the present invention.

Reference numerals:

1’-first support roll, 2’-first upper working roll, 3’-first lower working roll, 4’-wedge block,

5’-Hydraulic cylinder;

1-support roller assembly, 11-support roller, 12-support seat, 121-center circular hole, 1211-boss,

122-through hole, 13-eccentric ring, 141-external convex ring stator, 1411-stator oil port,

1412-elliptical groove, 1413-sinking groove, 142-distributor plate, 1421-notch, 143-rotor,

1431-blade, 15-sealing ring, 16-cover plate, 161-limiting part, 17-baffle, 18-positioning ring,

19-support ring, 110-needle bearing, 120-pin, 3-upper working roller, 4-lower working roller,

5-guide plate, 6-cooling unit, 7-upper cover plate, 8-coupling, 9-lower cover plate, 10-upper guide plate.

Detailed ways

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 in conjunction with 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 used to limit the present invention.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can 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 can be directly connected to the other element or indirectly connected to the other element.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", etc. 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.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Wide and thick plates are mainly used in key national projects, national defense projects and the construction of major infrastructure, such as: shipbuilding steel, bridge construction, power systems, automotive industry, chemical steel, machinery manufacturing, construction steel, oil pipeline steel, etc.

Plate shape defects may occur in every link of wide and thick plate production. Common plate shape defects of wide and thick plates include: wave bend, sickle bend, scoop bend, two-rib wave, single-side wave, middle wave and double-side wave. Straightening machine is a parallel roller straightening machine with continuous and repeated bending. It is equipped with a certain number of straightening rollers that can achieve repeated bending. It is an important finishing equipment to ensure the straightness of the plate and eliminate residual stress. It directly affects the surface quality and flatness of the plate. After straightening, the residual curvature of the plate is basically the same and gradually decreases and eventually tends to zero.

With the rapid increase in demand for high-strength steel plates, steel production companies have higher and higher performance requirements for straightening machines. In order to meet these requirements, it is a common method to increase the straightening force of the straightening machine to meet production requirements without changing the number of working rolls of the straightening machine. Since the straightening force of the straightening machine is mainly borne by the support rolls, how to make the support rolls of the straightening machine withstand a larger load has been a difficult problem that researchers at home and abroad have been trying to overcome for a long time.

In the prior art, a wedge-shaped adjustment mechanism is generally used. Specifically, referring to FIG. 1, multiple first support rollers 1' are in rolling contact with the first upper working roller 2', and at the same time, multiple first support rollers 1' are in rolling contact with the first lower working roller 3'. The convexity of multiple support rollers 1' used for rolling contact with the first upper working roller 2' is adjusted by a wedge block 4', and at the same time, the convexity of multiple first support rollers 1' used for rolling contact with the first lower working roller 3' is adjusted by a wedge block 4'. The extension and retraction of the hydraulic cylinder 5' drives the wedge block 4' to further drive the first support roller 1' to move, thereby realizing the adjustment of the working roller convexity. However, in this adjustment method, multiple support rollers share a wedge-shaped adjustment mechanism, and the support rollers cannot be adjusted individually, which affects the adjustment accuracy of the working roller convexity.

In order to solve the technical problems existing in the above-mentioned prior art, referring to Figures 3 to 5, an embodiment of the present invention provides a support roller assembly 1, comprising a support roller 11, two support seats 12 arranged opposite to each other, an eccentric ring 13 and a driving mechanism, wherein the support roller 11 is used for rolling contact with the working roller. The two support seats 12 arranged opposite to each other are respectively arranged at the two ends of the support roller 11, and the support roller 11 is rotatably arranged on the support seats 12. The outer wall of the eccentric ring 13 is rotatably arranged on the support seat 12, and the eccentric ring 13 is rotatably sleeved outside the support roller 11. The driving mechanism is arranged on the support seat 12, and is used to drive the eccentric ring 13 to rotate, so as to change the distance between the axis of the support roller 11 and the axis of the working roller.

When the above technical solution is adopted, the eccentric ring 13 is rotatably sleeved outside the support roller 11, and when the support roller 11 is in rolling contact with the working roller, the support roller 11 can rotate relative to the eccentric ring 13. When the driving mechanism drives the eccentric ring 13 to rotate, the distance between the axis of the support roller 11 and the axis of the working roller can be changed, thereby realizing the adjustment of the convexity of the working roller by the support roller 11. The support roller assembly 1 provided in the present application can adjust the convexity of the working roller by adjusting a single support roller 11, and can improve the accuracy of adjusting the convexity of the working roller. In specific implementation, the supporting force of the support roller 11 at the corresponding working roller position to the working roller can be adjusted accordingly according to the actual defect conditions of the plate to be straightened and the different defect degrees at different positions, so as to realize efficient and precise regulation and improve the effect of plate straightening.

It should be noted that the axis of the inner wall of the eccentric ring 13 and the axis of the outer wall do not coincide. In the embodiment provided by the present invention, the eccentric ring 13 is rotatably sleeved outside the support roller 11, and at the same time, the outer wall of the eccentric ring 13 is rotatably set on the support seat 12, which means that the axis of the inner wall of the eccentric ring 13 is collinear with the axis of the support roller 11, and the axis of the outer wall of the eccentric ring 13 is collinear with the axis of the central circular hole 121 of the support seat 12. When the driving mechanism drives the eccentric ring 13 to rotate, the eccentric ring 13 rotates around the axis of the outer wall. At this time, the axis of the inner wall of the eccentric ring 13 rotates synchronously around the axis of the outer wall of the eccentric ring 13, driving the support roller 11 to rotate around the axis of the outer wall of the eccentric ring 13, thereby changing the distance between the axis of the support roller 11 and the axis of the working roller, so that the contact stress between the support roller 11 and the working roller is changed, and the convexity of the working roller can be adjusted.

In specific implementation, a support seat 12, an eccentric ring 13 and a driving mechanism are correspondingly provided at both ends of the length direction of the support roller 11. The installation angles and positions of the eccentric rings at both ends of the length direction of the support roller 11 are the same, ensuring that the axis of the support roller 11 is parallel to the axis of the corresponding working roller. When the driving mechanisms at both ends of the length direction of the support roller 11 simultaneously drive the eccentric ring 13 to rotate, the distance between the axis of the support roller 11 and the axis of the working roller can be changed. The driving mechanism can be a structure capable of driving the eccentric ring 13 to rotate. For example, the driving mechanism can include a driving motor. In this case, the eccentric ring 13 can be installed on the output shaft of the driving motor. When the output shaft of the driving motor rotates, the eccentric ring 13 is synchronously driven to rotate. Of course, this is just an example and is not a specific limitation. In addition, a needle roller bearing 110 is arranged between the outer wall of the eccentric ring 13 and the central circular hole 121 of the support seat 12. Specifically, the inner wall of the needle roller bearing 110 is fixedly connected to the outer wall of the eccentric ring 13, and the outer wall of the needle roller bearing 110 is fixedly connected to the inner wall of the central circular hole 121 to realize a rolling connection between the eccentric ring 13 and the support seat.

Further, referring to Figures 4 to 6, the inner wall of the central circular hole 121 has a boss 1211, and the outer wall of the eccentric ring 13 is rotatably arranged on the inner wall of the boss 1211. Through holes 122 communicating with the central circular hole 121 are provided on both sides of the boss 1211 on the support seat 12, one of the through holes 122 is used to receive hydraulic oil, and the other through hole 122 is used to output hydraulic oil.

In a possible implementation, as shown in FIG. 4 and FIG. 5, the driving mechanism provided by the embodiment of the present invention includes two relatively arranged external convexity ring stators 141, two rotating plates 143, two distribution plates 142 and a hydraulic oil supply unit, and the relatively arranged two external convexity ring stators 141 are arranged in the central circular hole 121, and the two external convexity ring stators 141 are respectively located on both sides of the boss 1211, and the external convexity ring stators 141 can be fixedly connected to the support seat 12 by screws. The external convexity ring stator 141 is rotatably sleeved outside the support roller 11, and a stator oil port 1411 is opened on the external convexity ring stator 141, and the stator oil port 1411 is connected to the through hole 122 on the corresponding side. An elliptical groove 1412 is provided on one side of the external convexity ring stator 141 close to the boss 1211, and the stator oil port 1411 is located at one end of the long axis of the elliptical groove 1412. The side of the external convexity ring stator 141 with the elliptical groove 1412 abuts against the side wall of the boss 1211, as shown in Figures 4 and 5, and the side of the external convexity ring stator 141 with the elliptical groove 1412 is sealed against the boss 1211 to prevent leakage of hydraulic oil. A counterbore groove 1413 is provided at the bottom of the elliptical groove 1412, and the stator oil port 1411 is connected to the counterbore groove 1413. The counterbore groove 1413 is used to guide the hydraulic oil so that the hydraulic oil passing through the through hole 122 and the stator oil port 1411 can be distributed at the bottom of the elliptical groove 1412. The distribution plate 142 corresponds to the outer convex ring stator 141, that is, one outer convex ring stator 141 corresponds to one distribution plate 142, and the distribution plate 142 is arranged in the elliptical groove 1412 of the outer convex ring stator 141, and the shape of the distribution plate 142 matches the shape of the elliptical groove 1412. The distribution plate 142 is fixedly mounted on the outer convex ring stator 141, and at the same time, the distribution plate 142 is rotatably sleeved outside the support roller 11, that is, the distribution plate 142 will not affect the rotation of the support roller 11. In addition, the distribution plate 142 is provided with two notches 1421 arranged relatively with respect to the geometric center of the distribution plate, the notches 1421 are connected to the counterbore groove 1413, and the connecting line of the two notches 1421 and the long axis of the elliptical groove 1412 have an acute angle. In addition, the orthographic projection of the line between the two notches 1421 on one distribution plate 142 on the other distribution plate 142 is symmetrically arranged with respect to the long axis of the other distribution plate with respect to the line between the two notches 1421 on the other distribution plate. The two rotating plates 143 are respectively fixedly arranged on both sides of the axial direction of the eccentric ring 13, and the rotating plates 143 are rotatably sleeved outside the support roller 11, and the rotating plates 143 will not affect the rotation of the support roller 11.

In this way, one central circular hole 121 of the support seat 12 corresponds to two outer convex ring stators 141, and one outer convex ring stator 141 corresponds to one through hole 122, one distribution plate 142 and one rotor 143. In other words, both sides of the boss 1211 of a support seat 12 correspond to one through hole 122, one outer convex ring stator 141, one distribution plate 142 and one rotor 143 respectively. For the convenience of description, the two sides of the boss 1211 are defined as the first side and the second side respectively, and the output end of the hydraulic oil supply unit is connected to the through hole 122 located on the first side, so as to deliver hydraulic oil to the through hole 122. The hydraulic oil is injected into the side of the distribution plate 142 close to the boss 1211 through the through hole 122 and the stator oil port 1411 on the outer convex ring stator 141 corresponding to the through hole 122, the counterbore groove 1413 and the two notches 1421 on the distribution plate 142. At the same time, the hydraulic oil can flow from the first side of the boss 1211 to the second side of the boss 1211 through the needle bearing 110 between the eccentric ring 13 and the support seat 12. The hydraulic oil acts on the blade 1431 of the rotating piece 143 located on the first side, thereby driving the rotating piece 143 to rotate, and further driving the eccentric ring 13 fixedly connected to the rotating piece to rotate, so that the distance between the axis of the support roller 11 and the axis of the working roller can be changed, so that the contact stress between the support roller 11 and the working roller is changed, and the crown of the working roller can be adjusted. Since both rotating pieces 143 are fixedly connected to the eccentric ring 13, when the rotating piece 143 on the first side rotates to drive the eccentric ring 13 to rotate, the rotating piece 143 on the second side rotates synchronously, and the two rotating pieces 143 corresponding to one support seat 12 can be rotated by the driving force of the hydraulic oil, and then the hydraulic oil flows out from the through hole 122 on the second side. Specifically, the amount of hydraulic oil delivered to the through hole 122 can be controlled by the actual supporting force required by the corresponding working roll, so as to realize the online flexible dynamic adjustment of the crown of the working roll and improve the production efficiency. In addition, the support roll 11 can compensate for the wear of the working roll diameter during the working process, increase the service life of the working roll, and improve the plate straightening effect.

In specific implementation, as shown in FIG8 , a plurality of blades are arranged on the outer periphery of the rotor body, and the plurality of blades are evenly arranged on the outer periphery of the rotor body along the circumference of the rotor body, and the blades are used to bear the thrust of the hydraulic oil. The rotor 143 can be fixed to the axial ends of the eccentric ring 13 by the pins 120, so as to realize the synchronous rotation of the rotor 143 and the eccentric ring 13.

In some embodiments, as shown in FIG. 4 and FIG. 5 , the support roller assembly 1 further includes a sealing ring 15 , which is disposed between the inner wall of the rotating sheet 143 and the outer wall of the support roller 11 to prevent leakage of the hydraulic oil.

In one example, the support roller assembly 1 further includes a cover plate 16, as shown in FIGS. 3 to 5, the cover plate 16 is covered on the end of the support roller 11. A limiting portion 161 is provided on the side of the cover plate 16 facing the support roller 11, and the limiting portion 161 is used to abut against the outer convex ring stator 141 near the end of the support roller 11. In another example, referring to FIGS. 3 and 4, the support roller assembly 1 further includes a baffle 17 and a positioning ring 18, and the baffle 17 is provided on the side of the support seat 12 away from the end of the support roller 11. The positioning ring 18 is provided on the side of the baffle 17 close to the support seat 12, and the positioning ring 18 is used to abut against the outer convex ring stator 141 located away from the end of the support roller 11. In this way, the positioning and installation of the outer convex ring stator 141 is facilitated, and at the same time, the stability of the outer convex ring stator 141 can be improved, and the structural strength of the support roller assembly 1 can be enhanced.

As an optional method, as shown in FIG. 4 and FIG. 5 , the support roller assembly 1 provided in the embodiment of the present invention further includes a support ring 19, which is sleeved outside the support roller 11, and the inner wall of the eccentric ring 13 is rotatably arranged on the outer wall of the support ring 19. In specific implementation, the support ring 19 is fixedly sleeved outside the support roller 11, and the fixed connection between the support ring 19 and the support roller 11 can be an interference connection, a threaded connection, or a key connection, which is not specifically limited here. At this time, the rotating plate 143 is rotatably sleeved outside the support ring 19, and the sealing ring 15 is located between the outer wall of the support ring 19 and the inner wall of the rotating plate 143. A needle bearing 110 is arranged between the outer wall of the support ring 19 and the eccentric ring 13, as shown in FIG. 4 and FIG. 5 .

As shown in Fig. 3, the support roller assembly 1 includes a plurality of support rollers 11 parallel to each other, and the plurality of support rollers 11 are arranged side by side along the length direction of the support seat 12. The plurality of support rollers 11 share one support seat 12, which facilitates the installation of the support roller assembly 1 and enables the crown of a plurality of working rollers to be adjusted separately at the same time.

In addition to the above, an embodiment of the present invention further provides a straightening machine, as shown in FIG2 , the straightening machine includes a carrier, an upper working roll 3, a lower working roll 4 and a plurality of support roll assemblies 1, the upper working roll 3 is rotatably arranged on the carrier, and the lower working roll 4 is rotatably arranged on the carrier. The upper working roll 3 is arranged opposite to the lower working roll 4, and the axis of the upper working roll 3 is parallel to the axis of the lower working roll 4. The carrier includes an upper cover plate 7 and a lower cover plate 9 arranged opposite to each other, and a support roll 11 of at least one support roll assembly 1 is in rolling contact with the upper working roll 3, and a support seat 12 of the support roll assembly 1 corresponding to the upper working roll 3 is arranged on the upper cover plate 7. A support roll 11 of at least one support roll assembly 1 is in rolling contact with the lower working roll 4, and a support seat 12 of the support roll assembly 1 corresponding to the lower working roll 4 is arranged on the lower cover plate 9. By controlling the rotation of the eccentric ring 13, the convexity control of the upper working roll 3 and the lower working roll 4 is realized, so as to act on the plate to be straightened, and perform high-precision online flexible adjustment.

In specific implementation, the number of upper working rolls 3 and the number of lower working rolls 4 are both multiple, and the multiple upper working rolls 3 are parallel to each other and arranged side by side along the first direction. The multiple lower working rolls 4 are parallel to each other and arranged side by side along the first direction. The plate to be straightened is located between the upper working roll 3 and the lower working roll 4, and the plate to be straightened is in rolling and extruding contact with both the upper working roll 3 and the lower working roll 4, and the plate to be straightened moves through the upper working roll 3 and the lower working roll 4. The supporting rolls 11 of the multiple supporting roll assemblies 1 are in rolling contact with the upper working roll 3, thereby providing a supporting force for the upper working roll 3. The supporting rolls 11 of the multiple supporting roll assemblies 1 are in rolling contact with the lower working roll 4, thereby providing a supporting force for the lower working roll 4. The multiple supporting roll assemblies 1 are arranged in sequence along the second direction. It should be noted that the first direction can be parallel to the length direction of the supporting seat 12, and the second direction is perpendicular to the first direction. The second direction can be parallel to the length direction of the upper working roll 3.

As shown in FIG2 , the straightening machine provided by the embodiment of the present invention further includes two guide plates 5 arranged opposite to each other, which are respectively arranged on both sides of the lower cover plate along the movement direction of the plate to be straightened. The guide plates are used to guide the plate to be straightened between the upper working roller 3 and the lower working roller 4, and guide the straightened plate to be output to ensure the stability of the plate transportation. Of course, an upper guide plate 10 is also arranged on the side of the carrier frame opposite to the guide plate 5. In specific implementation, the upper guide plate 10 can be installed on the upper cover plate. The upper guide plate 10 and the guide plate 5 are respectively located on the upper and lower surfaces of the plate to be straightened, so as to improve the stability of the plate during transportation. In actual situations, the front end of the plate to be straightened in the direction of movement generally warps up. The guide plate 5 is generally composed of multiple small steps, shaped like comb teeth. When the plate to be straightened moves to the position of the guide plate 5 under the conveyance of the external transport mechanism, the front end of the plate to be straightened in the direction of movement first enters between the guide plate 5 and the upper guide plate 10. Under the cooperation of the guide plate 5 and the upper guide plate 10, the plate to be straightened is guided to between the upper working roller and the lower working roller. In other words, the guide plate 5 and the upper guide plate 10 can guide the plate to be straightened to ensure that the position of the plate to be straightened before entering the upper working roller and the lower working roller is correctly aligned, avoiding the displacement or rotation of the plate to be straightened, ensuring the accurate position and direction of the plate to be straightened during the straightening process, and through precise guidance, the friction and resistance of the plate to be straightened during the straightening process can be reduced, thereby improving the overall straightening efficiency. This efficiency improvement not only saves time, but also reduces energy consumption and production costs.

In addition, the straightening machine also includes a cooling unit 6 for cooling the upper working roll 3 and/or the lower working roll 4. Specifically, taking the upper working roll 3 as an example, a cooling channel extending along its axis is provided on the upper working roll 3, and the output end of the cooling unit 6 is connected to one end of the cooling channel. The refrigerant provided by the cooling unit 6 flows through the cooling channel and exchanges heat with the upper working roll 3, thereby cooling the upper working roll 3, extending the service life of the upper working roll 3, and at the same time, avoiding the bending deformation of the upper working roll 3 due to excessive temperature, thereby reducing the accuracy of straightening the plate. A coupling 8 is provided at the end of the upper working roll 3 away from the cooling unit 6, and the driving structure is connected to the upper working roll 3 through the coupling 8 to provide power for the upper working roll 3.

In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims (10)

1. A support roller assembly, characterized in that it comprises: A support roll, used for rolling contact with the working roll; Two supporting seats are arranged opposite to each other and are respectively arranged at two ends of the supporting roller, and the supporting roller is rotatably arranged on the supporting seats; An eccentric ring, the outer wall of which is rotatably disposed on the support seat, and the eccentric ring is rotatably sleeved outside the support roller; The driving mechanism is arranged on the supporting seat and is used for driving the eccentric ring to rotate so as to change the distance between the axis of the supporting roller and the axis of the working roller. 2. The support roller assembly according to claim 1, characterized in that the support seat has a central circular hole, the inner wall of the central circular hole has a boss; the outer wall of the eccentric ring is rotatably arranged on the inner wall of the boss; through holes communicating with the central circular hole are opened on both sides of the boss on the support seat; The driving mechanism comprises: Two external convexity ring stators are arranged opposite to each other, and are arranged in the central circular hole, and the two external convexity ring stators are respectively located on both sides of the boss; the external convexity ring stator is rotatably sleeved outside the support roller; a stator oil port is provided on the external convexity ring stator, and the stator oil port is communicated with the through hole on the corresponding side; an elliptical groove is provided on the side of the external convexity ring stator close to the boss, and the stator oil port is located at one end of the long axis of the elliptical groove, and a counterbore groove is provided at the bottom of the elliptical groove, and the stator oil port is communicated with the counterbore groove; Two distribution discs, the distribution discs correspond to the outer convex ring stator; the distribution disc is arranged in the elliptical groove, and the distribution disc is rotatably sleeved outside the support roller; the distribution disc is provided with two notches arranged relative to the geometric center of the distribution disc, and the notches are connected to the countersunk groove; there is an acute angle between the connecting line of the two notches and the long axis of the elliptical groove; the orthographic projection of the connecting line between the two notches on one distribution disc on the other distribution disc and the connecting line between the two notches on the other distribution disc are symmetrically arranged about the long axis of the other distribution disc; Two rotating plates are respectively fixedly arranged on both sides of the eccentric ring in the axial direction, and the rotating plates are rotatably sleeved outside the supporting roller; A hydraulic oil supply unit, the output end of which is connected to one of the through holes, is used to deliver hydraulic oil to the through hole. 3. The support roller assembly according to claim 2 is characterized in that the support roller assembly further comprises a sealing ring disposed between the inner wall of the rotating sheet and the outer wall of the support roller. 4. The supporting roller assembly according to claim 2 is characterized in that the supporting roller assembly also includes a cover plate, which is covered on the end of the supporting roller; the cover plate is provided with a limiting portion on the side facing the supporting roller, and the limiting portion is used to abut against the outer convexity ring stator close to the end of the supporting roller. 5. The support roller assembly according to claim 2, characterized in that the support roller assembly further comprises: A baffle plate is arranged on a side of the support seat away from the end of the support roller; A positioning ring is arranged on a side of the baffle plate close to the support seat, and the positioning ring is used to abut against the outer convexity ring stator located away from the end of the support roller. 6. The support roller assembly according to claim 1 is characterized in that the support roller assembly also includes a supporting ring, which is sleeved outside the support roller, and the inner wall of the eccentric ring is rotatably set on the outer wall of the supporting ring. 7. The support roller assembly according to claim 1 is characterized in that the support roller assembly comprises a plurality of support rollers parallel to each other, and the plurality of support rollers are arranged side by side along the length direction of the support seat. 8. A straightening machine, characterized by comprising: Carrying frame; An upper working roller is rotatably disposed on the bearing frame; A lower working roll is rotatably arranged on the bearing frame; the upper working roll is arranged opposite to the lower working roll; A plurality of support roller assemblies according to any one of claims 1 to 7, wherein the carrier frame comprises an upper cover plate and a lower cover plate arranged opposite to each other; wherein, one support roller of at least one support roller assembly is in rolling contact with the upper working roller, and the support seat of the support roller assembly corresponding to the upper working roller is arranged on the upper cover plate; and one support roller of at least one support roller assembly is in rolling contact with the lower working roller, and the support seat of the support roller assembly corresponding to the lower working roller is arranged on the lower cover plate. 9. The straightening machine according to claim 8 is characterized in that the straightening machine also includes two guide plates arranged opposite to each other, which are respectively arranged on both sides of the lower cover plate along the movement direction of the plate to be straightened, and the guide plates are used to guide the plate to be straightened between the upper working roller and the lower working roller, and guide the straightened plate to be output. 10 . The straightening machine according to claim 8 , further comprising a cooling unit for cooling the upper working roll and/or the lower working roll.