Scratch prevention device for balancing the tension of a rolling mill

Abstract

The application discloses a balanced rolling mill tension scratch-proof device and relates to the technical field of rolling mill accessories. The balanced rolling mill tension scratch-proof device comprises a side loop-up roll and a transmission rod. The transmission rod is sleeved on the inner side of the side loop-up roll, and the outer side of the transmission rod is provided with two groups of convex strips. The balanced rolling mill tension scratch-proof device is provided with uniformly distributed limiting grooves on the side loop-up roll through the cooperation of the side loop-up roll and the limiting grooves. An arc-shaped curved surface is arranged between the limiting grooves and the side loop-up roll. In the working process of the side loop-up roll, the red strip is located on the inner side of the limiting groove and is guided by the arc-shaped curved surface between the limiting groove and the side loop-up roll, and the red strip is close to the middle part of the limiting groove, so that the red strip is prevented from sliding up and down on the outer side of the side loop-up roll to cause unstable tension and scratches when the red strip is attached to the bottom, and the protection effect of the balanced rolling mill tension scratch-proof device on the red strip is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rolling mill accessories, more particularly to a scratch-preventing device for balancing the tension of a rolling mill. BACKGROUND

[0002] A rolling mill is a device for realizing the rolling process of metal, and generally refers to an equipment for completing the whole process of rolling stock production. According to the number of rollers, it can be divided into two rollers, four rollers, six rollers, eight rollers, twelve rollers and eighteen rollers, etc. The ordinary rolling mill is mainly composed of rollers, a frame, a roller gap adjusting device, a roller temperature adjusting device, a transmission device, a lubricating system, a control system and a roller dismounting device, etc. In addition to the main parts and devices of the ordinary rolling mill, the precision calender is provided with devices for ensuring the precision of calendering. In order to ensure the dimensional accuracy of the product, the modern high-speed wire rod mill adopts micro-tension and tension-free rolling to eliminate the tension fluctuation caused by various dynamic disturbances in the rolling process and the dimensional fluctuation of the rolled stock caused thereby.

[0003] Since the finishing mill group is collectively driven, the finishing mill adopts micro-tension rolling, and the micro-tension value is ensured by the fixed speed ratio and the given hole and groove area of each stand. The speed ratio will not change due to control, and the area of the rolled stock will fluctuate due to the area fluctuation of the incoming material. In order to reduce the dimensional fluctuation of the rolled stock of the finishing mill caused by the tension change, a plurality of looper stands are usually arranged in the pre-finishing mill and the intermediate mill to eliminate the disturbance of the dynamic speed change of each stand in the continuous rolling and to ensure the accuracy of the rolled stock. The side looper stand is an auxiliary accessory for balancing the tension of the rolling mill.

[0004] The existing side looper stand still has some deficiencies in the actual working process. Since most of the side looper stands still adopt the planar looper structure, the existing looper causes unstable tension when the red strip slides up and down on the looper during the working process of the looper, and causes scratches when it is attached to the bottom. Therefore, we design a scratch-preventing device for balancing the tension of a rolling mill to solve the above problems. SUMMARY

[0005] In view of the above problems, the present application provides a scratch-preventing device for balancing the tension of a rolling mill to improve the above problems.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme: a scratch-preventing device for balancing the tension of a rolling mill, comprising a side looper stand and a transmission rod, the transmission rod is sleeved on the inner side of the side looper stand, and the outer part of the transmission rod is provided with two groups of convex strips, a sleeving groove and a recess groove matched with the transmission rod and the convex strip are arranged in the side looper stand, a plurality of limiting grooves are evenly arranged on the outer part of the side looper stand, and a movable bearing is movably sleeved on both sides of the limiting groove on the outer part of the side looper stand, a fixed seat is fixedly installed on the outer part of the movable bearing, a deflection seat is movably sleeved in the fixed seat, an assembly seat is movably sleeved at the bottom end of the deflection seat, and a ball is movably sleeved in the assembly seat.

[0007] Further, the fixing seat is fixedly connected with the movable bearing through the reinforcing plates which are uniformly distributed and have a triangular structure.

[0008] Further, the arc-shaped curved surface is arranged between the limiting groove and the side loop-up roll, and the both ends of the curved surface extend to the middle part of the limiting groove and the inner ring part of the movable bearing respectively.

[0009] Further, the deflection cavity matched with the deflection seat is arranged in the fixing seat, and the fixing seat is movably connected with the deflection seat through the deflection shaft.

[0010] Further, the both ends of the deflection shaft extend to the outside of the fixing seat and are fixedly sleeved with the transmission disc, and the torsional spring is fixedly connected between the transmission disc and the fixing seat.

[0011] Further, the limiting plate is fixedly sleeved on the top of the deflection seat, and the limiting plate and the top of the deflection cavity are mutually attached when the deflection seat is deflected to be parallel to the fixing seat.

[0012] Further, the gap is arranged between the two groups of deflection seats, and the arc-shaped curved surface is arranged on the outside of the deflection seat.

[0013] Further, the assembling seat and the ball are located on the outside of the fixing seat, and the bottom end of the ball is below the fixing seat.

[0014] The balancing tension preventing scratch device for rolling mill has the following beneficial effects:

[0015] 1. The balancing tension preventing scratch device for rolling mill is provided with the uniformly distributed limiting grooves on the side loop-up roll through the cooperation of the side loop-up roll and the limiting groove, the arc-shaped curved surface is arranged between the limiting groove and the side loop-up roll, the red strip is on the inside of the limiting groove and is guided by the arc-shaped curved surface between the limiting groove and the side loop-up roll during the working process of the side loop-up roll, and the red strip is close to the middle part of the limiting groove, so that the red strip is prevented from sliding up and down on the outside of the side loop-up roll to cause the unstable tension and the scratch when being attached to the bottom, and the protection effect of the balancing tension preventing scratch device for rolling mill on the red strip is improved.

[0016] 2. The scratch-preventing device for balancing the rolling tension of the rolling mill, through the cooperation of the movable bearing, the fixed seat, the assembly seat and the ball, the red strip is located between the deflection seat and the limiting groove and in contact with the ball below the deflection seat in the conveying process of the red strip, the deflection seat and the fixed seat are kept clamped above the red strip under the rotating action of the movable bearing, and the ball rolls following the movement of the red strip under the action of the assembly seat, the auxiliary limiting effect on the red strip is realized, the limiting and protection effect of the scratch-preventing device for balancing the rolling tension of the rolling mill on the red strip is further improved, and the movement of the red strip is not affected.

[0017] 3. The scratch-preventing device for balancing the rolling tension of the rolling mill, through the cooperation of the fixed seat, the deflection seat, the transmission disc and the torsional spring, the red strip can be in contact with the outside of the deflection seat when the red strip is put in, the deflection seat is deflected inside the fixed seat, the torsional spring between the transmission disc and the fixed seat is twisted, the gap between the two deflection seats is expanded, the deflection seat and the transmission disc are reset under the action of the elastic force of the torsional spring after the red strip is completely placed in the limiting groove on the side loop-up roll, the limiting and protection of the red strip are realized, and therefore the operation of putting the red strip into the scratch-preventing device for balancing the rolling tension of the rolling mill is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present application, the drawings needed in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0019] Fig. 1 A schematic view of a scratch-preventing device for balancing the rolling tension of a rolling mill is shown;

[0020] Fig. 2 A structural schematic view of the outside of a side loop-up roll is shown;

[0021] Fig. 3 A structural schematic view of the front of a side loop-up roll is shown;

[0022] Fig. 4 A structural schematic view of the bottom of a fixed seat and a deflection seat is shown;

[0023] Fig. 5 A structural schematic view of the outside of a fixed seat and a deflection seat is shown;

[0024] Fig. 6 A structural schematic view of the side of a fixed seat and a deflection seat is shown.

[0025] In the figure: 1, side loop-up roll; 2, transmission rod; 3, convex strip; 4, limiting groove; 5, fixed seat; 6, movable bearing; 7, reinforcing plate; 8, transmission disc; 9, deflection seat; 10, sleeve groove; 11, groove; 12, assembly seat; 13, ball; 14, limiting plate; 15, torsional spring; 16, deflection cavity; 17, deflection shaft. DETAILED DESCRIPTION

[0026] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0027] Referring to Figs. 1 to 3 The present application provides a technical solution: a scratch-preventing device for balancing the tension of a rolling mill, which comprises a side loop-up roll 1 and a transmission rod 2, the transmission rod 2 is sleeved on the inner side of the side loop-up roll 1, and the outer part of the transmission rod 2 is provided with two groups of convex strips 3, the transmission rod 2 is assembled in a rolling mill set and can rotate when the rolling mill set is working, the side loop-up roll 1 is provided with a sleeve groove 10 and a groove 11 matched with the transmission rod 2 and the convex strips 3, and the side loop-up roll 1 and the transmission rod 2 are fixedly sleeved through the convex strips 3, the sleeve groove 10 and the groove 11.

[0028] The outer part of the side loop-up roll 1 is provided with uniformly distributed limiting grooves 4, and the outer part of the side loop-up roll 1 is movably sleeved with movable bearings 6 located on both sides of the limiting grooves 4, an arc-shaped curved surface is arranged between the limiting grooves 4 and the side loop-up roll 1, the side loop-up roll 1 rotates following the transmission rod 2 when working, the red strip is located on the inner side of the limiting grooves 4 and is guided by the arc-shaped curved surface between the limiting grooves 4 and the side loop-up roll 1, the two ends of the curved surface respectively extend to the middle part of the limiting grooves 4 and the inner ring part of the movable bearing 6, and the curved surface is close to the middle part of the limiting grooves 4, so as to avoid the unstable tension caused by the up-and-down sliding of the red strip on the outer part of the side loop-up roll 1.

[0029] Referring to Figs. 2 to 5 The outer part of the movable bearing 6 is fixedly installed with a fixed seat 5, and the fixed seat 5 and the movable bearing 6 are fixedly connected with uniformly distributed reinforcing plates 7, the fixed seat 5 and the movable bearing 6 are fixedly connected, the rotation of the side loop-up roll 1 in the working process, the deflection seat 9 and the fixed seat 5 as a whole are kept clamped above the red strip under the rotating action of the movable bearing 6, the reinforcing plate 7 is in a triangular structure, and the reinforcing plate 7 is used to enhance the stability of the fixed connection between the fixed seat 5 and the movable bearing 6.

[0030] The fixed seat 5 movably sleeves the deflection seat 9, the fixed seat 5 is provided with a deflection cavity 16 matched with the deflection seat 9, the deflection seat 9 can deflect around the deflection shaft 17 in the deflection cavity 16 of the fixed seat 5, and the fixed seat 5 and the deflection seat 9 are movably connected through the deflection shaft 17, so that the red strip can be placed between the deflection seat 9 and the limiting groove 4, the both ends of the deflection shaft 17 extend to the outside of the fixed seat 5 and are movably sleeved with the transmission disc 8, when the red strip is placed, the red strip and the outside of the deflection seat 9 contact each other, extrude the deflection seat 9, so that the deflection seat 9 deflects around the deflection shaft 17 in the deflection cavity 16 of the fixed seat 5, in turn drives the torsional spring 15 between the transmission disc 8 and the fixed seat 5 to twist, the transmission disc 8 and the fixed seat 5 are fixedly connected with the torsional spring 15, after the red strip is completely placed in the limiting groove 4 on the side movable sleeve roll 1, the deflection seat 9 and the transmission disc 8 reset under the action of the elastic force of the torsional spring 15.

[0031] Please refer to Figs. 3 to 6 The bottom end of the deflection seat 9 is movably sleeved with the assembly seat 12, the top of the deflection seat 9 is movably sleeved with the limiting plate 14, the limiting plate 14 can keep the parallel state between the deflection seat 9 and the fixed seat 5, when the deflection seat 9 deflects to be parallel with the fixed seat 5, the limiting plate 14 and the top of the deflection cavity 16 are mutually attached, so that the deflection seat 9 can cooperate with the limiting groove 4 to limit the red strip, the assembly seat 12 movably sleeves the ball 13.

[0032] The gap between the two groups of deflection seats 9 can increase with the deflection of the deflection seat 9, so that the red strip is convenient to put in, and the outer part of the deflection seat 9 is provided with an arc surface, the arc surface of the outer part of the deflection seat 9 can avoid the red strip being scratched in the process of being put in, the assembly seat 12 and the ball 13 are located on the outside of the fixed seat 5, when the red strip is located between the deflection seat 9 and the limiting groove 4, the ball 13 below the deflection seat 9 is contacted with each other, and the bottom end of the ball 13 is below the fixed seat 5, the ball 13 can roll with the movement of the red strip under the action of the assembly seat 12, realize the auxiliary limiting of the red strip, and will not affect the movement of the red strip.

[0033] In summary, the anti-scratching device for balancing the rolling mill tension provided by the application, when in use, the side loop lifting roller 1 and the transmission rod 2 are fixed through the convex strip 3 and the sleeve joint groove 10, the transmission rod 2 is assembled in the rolling mill unit, the evenly distributed limiting grooves 4 are arranged on the side loop lifting roller 1, the arc-shaped curved surface is arranged between the limiting grooves 4 and the side loop lifting roller 1, when the red strip is put in, the red strip and the outside of the deflection seat 9 are in contact with each other, the deflection seat 9 is extruded, so that the deflection seat 9 is deflected in the deflection cavity 16 inside the fixed seat 5 around the deflection shaft 17, then the torsional spring 15 between the transmission disc 8 and the fixed seat 5 is twisted, the gap between the two groups of deflection seats 9 is expanded, after the red strip is completely placed in the limiting grooves 4 on the side loop lifting roller 1, the deflection seat 9 and the transmission disc 8 are reset under the action of the elastic force of the torsional spring 15, the limiting protection of the red strip is realized, in the working process of the rolling mill unit, the side loop lifting roller 1 rotates with the transmission rod 2, the red strip is on the inside of the limiting grooves 4 and is guided by the arc-shaped curved surface between the limiting grooves 4 and the side loop lifting roller 1, and moves towards the middle part of the limiting grooves 4, at the same time, the red strip is between the deflection seat 9 and the limiting grooves 4 and is in contact with the ball 13 below the deflection seat 9, with the rotation of the side loop lifting roller 1 in the working process, the deflection seat 9 and the fixed seat 5 as a whole are kept clamped above the red strip under the rotating action of the movable bearing 6, the ball 13 rolls with the movement of the red strip under the action of the assembly seat 12, the auxiliary limiting effect of the red strip is realized, and the working process of the whole anti-scratching device for balancing the rolling mill tension is completed.

[0034] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes the elements inherent to such process, method, article or equipment.

[0035] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous changes, modifications, substitutions and variations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A scratch-proof device for balancing the tension of a rolling mill, comprising a side loop starting-up roller (1) and a transmission rod (2), the transmission rod (2) being sleeved on the inner side of the side loop starting-up roller (1), and the outer part of the transmission rod (2) being provided with two groups of convex strips (3), and the side loop starting-up roller (1) being provided with a sleeving groove (10) and a concave groove (11) matched with the transmission rod (2) and the convex strips (3) respectively, characterized in that: The outer part of the side sleeve starting roller (1) is provided with uniformly distributed limiting grooves (4), and the outer part of the side sleeve starting roller (1) is provided with movable bearings (6) on both sides of the limiting grooves (4), the outer part of the movable bearing (6) is fixedly provided with a fixed seat (5), the fixed seat (5) is movably provided with a deflection seat (9), the bottom end of the deflection seat (9) is movably provided with an assembly seat (12), the assembly seat (12) is movably provided with a ball (13), the two groups of deflection seats (9) are provided with gaps, and the outer part of the deflection seat (9) is provided with an arc curved surface, the assembly seat (12) and the ball (13) are located on the outer side of the fixed seat (5), and the bottom end of the ball (13) is below the fixed seat (5), during the conveying process of the red strip, the red strip is located between the deflection seat (9) and the limiting groove (4), and is in contact with the ball (13) below the deflection seat (9). ​ 2. A scratch prevention device for balancing the tension of a rolling mill according to claim 1, characterized in that: The fixed seat (5) and the movable bearing (6) are fixedly connected with uniformly distributed reinforcing plates (7), and the reinforcing plates (7) are triangular structures.

3. A scratch prevention device for balancing the tension of a rolling mill according to claim 1, characterized in that: The limiting groove (4) and the side sleeve starting roller (1) are provided with an arc curved surface, and the two ends of the curved surface extend to the middle part of the limiting groove (4) and the inner ring part of the movable bearing (6) respectively.

4. A scratch guard device for balancing the tension of a rolling mill according to claim 1, characterized in that: The fixed seat (5) is provided with a deflection cavity (16) matched with the deflection seat (9), and the fixed seat (5) and the deflection seat (9) are movably connected through a deflection shaft (17).

5. A scratch guard device for balancing the tension of a rolling mill according to claim 4, characterized in that: Both ends of the deflection shaft (17) extend to the outside of the fixed seat (5) and are fixedly provided with a transmission disc (8), and the transmission disc (8) and the fixed seat (5) are fixedly connected with a torsional spring (15).

6. A scratch guard device for balancing the tension of a rolling mill according to claim 5, characterized in that: The top of the deflection seat (9) is fixedly provided with a limiting plate (14), and when the deflection seat (9) is deflected to be parallel to the fixed seat (5), the limiting plate (14) and the top of the deflection cavity (16) are mutually attached.

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