Finishing mill gap bridge and finishing mill
By designing a swingable connection finishing mill bridge, the problem of sheet material deviation during the conveying process is solved, the quality of the steel strip edge and the stability of the coil shape are improved, and the failure rate and scrap rate of the finishing mill are reduced.
Patent Information
- Application Number
- CN202420647766.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-03-29
AI Technical Summary
During the transportation process, existing finishing mills are likely to cause the plate to deviate during the bridge, affecting the quality and coil shape of the steel strip edges, and frequently stacking steel and high failure rate, especially when position shifts before entering the finishing mill, resulting in unsuccessful shearing.
A finishing mill bridge is designed, including a cross-bridge cross-plate and two first vertical plates. The swing connection between the cross-plate and the vertical plate is realized through the first hinge and the second hinge, and the swing connection is used to guide and offset the movement direction of the plate.
It effectively solves the problem of plate deviation during the conveying process, improves the quality of the steel strip edge and the stability of the coil shape, and reduces the failure rate and scrap rate of the finishing mill.
Smart Images
Figure CN222607565U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of steel forging, and more specifically relates to a finishing mill bridge. The utility model also relates to a finishing mill. Background Art
[0002] Steel rolling is the process of changing the shape of steel ingots and billets between rotating rollers. The purpose of steel rolling is the same as other pressure processes. On the one hand, it is to obtain the required shape, such as plates, strips, wires and various steel sections; on the other hand, it is to improve the internal quality of steel.
[0003] The billets coming out of the steel mill are only semi-finished products. They must be rolled in the steel mill before they can become qualified products. The continuous casting billets sent from the steel mill first enter the heating furnace, and then go through the primary rolling mill for repeated rolling before entering the finishing mill. Steel rolling belongs to metal pressure processing. To put it simply, rolling plates is like rolling noodles. After repeated squeezing and pushing by the rolling pin, the noodles become thinner and thinner. On the hot rolling production line, the billets are heated and softened, and then sent into the rolling mill by rollers, and finally rolled into the size required by the user.
[0004] According to the specific usage scenarios of rolling mills, more than one rolling mill may be connected in series on the same steel rolling production line. Bridges are generally used between adjacent rolling mills or conveyor belts to connect the steel in the rolling process. In this process, baffles are also provided on the bridge to prevent the steel from falling from the bridge.
[0005] However, when the existing bridge baffle is used in the finishing mill, the plate is easy to deviate during the butt conveying process, which has an adverse effect on the edge quality and coil shape of the steel strip, and even causes frequent steel piling in the finishing mill, with a high failure rate. In particular, when the intermediate plate passes through the flying shear device before entering the finishing mill, the position deviation is easy to cause unsuccessful shearing, and the head and tail cannot be cut to size, or the head and tail are incompletely cut, resulting in waste. Improvement is urgently needed. Utility Model Content
[0006] The utility model aims to provide a finishing mill bridge to solve the technical problem that the existing plates are easy to run around during the butt-jointing transportation process.
[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a finishing mill bridge, the finishing mill bridge includes a bridge cross plate and two first vertical plates; along the conveying direction of the plate, one end of the bridge cross plate is the feeding end, and the other end is the discharging end, a first hinge is provided on the side of the bridge cross plate adjacent to the feeding end, the bridge cross plate is connected to a preset position by a lockable swing of the first hinge, the axial direction of the first hinge is parallel to the horizontal direction and perpendicular to the conveying direction of the plate; the two first vertical plates are arranged on opposite sides of the bridge cross plate in the width direction, a second hinge is provided on the side of the first vertical plate adjacent to the feeding end, the axial direction of the second hinge is parallel to the vertical direction, the first vertical plate is connected to one side of the bridge cross plate by a lockable swing of the second hinge, and the two first vertical plates are both arranged above the bridge cross plate.
[0008] In a possible implementation, the finishing mill bridge also includes a second vertical plate and a third hinge, and the second vertical plate is connected to the side of the first vertical plate away from the second hinge through a lockable swing of the third hinge, and the plate surface of the second vertical plate is parallel to the conveying direction of the plate.
[0009] In a possible implementation, the finishing mill bridge also includes a second cross plate and a fourth hinge, and the second cross plate is connected to the side of the bridge cross plate away from the first hinge through a lockable swing of the fourth hinge, and the plate surface of the second cross plate is parallel to the conveying direction of the plate.
[0010] In a possible implementation, the two third hinges are respectively arranged on opposite sides of the two first vertical plates, the third hinges include a third bolt and a third nut threadedly adapted for the third bolt, the two first vertical plates are each provided with a first fixing ring on opposite sides, and the two second vertical plates are each provided with a second fixing ring on opposite sides, the third bolt coaxially passes through the first fixing ring and the second fixing ring, the first fixing ring is located below the second fixing ring, the lower end surface of the first fixing ring is provided with a plurality of first protrusions, each of the first protrusions is evenly distributed on the lower end surface around the axis of the first fixing ring, the upper end surface of the second fixing ring is provided with a first recess corresponding to the first protrusion one by one, the first protrusion can be inserted into the first recess, and the third bolt and the third nut can lock the first protrusion in the first recess.
[0011] In a possible implementation, the fourth hinge is arranged on the lower surface of the bridge cross plate, the fourth hinge includes a fourth bolt and a fourth nut threadedly adapted to the fourth bolt, the lower surface of the bridge cross plate is provided with a third fixing ring, the lower surface of the second cross plate is provided with a fourth fixing ring coaxial with the third fixing ring, the fourth bolt coaxially passes through the third fixing ring and the fourth fixing ring, the third fixing ring and the fourth fixing ring are arranged in a stacked manner, the end surface of the third fixing ring adjacent to the fourth fixing ring is provided with a plurality of second protrusions, each of the second protrusions is evenly distributed around the axis of the third fixing ring, the end surface of the fourth fixing ring adjacent to the third fixing ring is provided with a second recess corresponding to the second protrusion one by one, the second protrusion can be inserted into the second recess, and the fourth bolt and the fourth nut can lock the second protrusion in the second recess.
[0012] In a possible implementation, the finishing mill bridge also includes a mounting seat, and the bridge cross plate is swingably arranged on the top of the mounting seat through the first hinge. A driving cylinder is provided on the side of the mounting seat away from the first hinge, and the driving cylinder can drive the bridge cross plate to swing around the first hinge.
[0013] In a possible implementation, the two first vertical plates are provided with limit strips and limit blocks on opposite sides thereof, the limit strips are welded to the first vertical plates, and the limit blocks are movably disposed above the bridge cross plate in the up and down directions and can press the limit strips.
[0014] In a possible implementation, a support leg is provided at the bottom of the mounting base, the length direction of the support leg is parallel to the up-down direction, and the support leg can be extended and retracted along the up-down direction.
[0015] Compared with the prior art, the beneficial effect of the finishing mill bridge provided by the utility model is that the utility model can utilize the swing of the bridge cross plate to achieve the docking between the finishing mill conveyor lines of different heights. In addition, the utility model can also utilize the swing of the two first vertical plates to guide the moving direction of the plate, correct the offset generated during the movement of the plate, and solve the technical problem that the existing plate has an adverse effect on the edge quality of the steel strip due to deviation during transportation. Not only that, the utility model can also correct the position offset of the plate before entering the finishing mill through the two first vertical plates, and prevent the technical problem of shearing failure caused by the position offset of the plate.
[0016] Another object of the utility model is to provide a finishing mill, comprising the finishing mill bridge mentioned above.
[0017] Compared with the prior art, the finishing mill in the utility model has all the advantages of the above-mentioned finishing mill bridge, which will not be described here. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the prior art description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:
[0019] Figure 1 A top view of the finishing mill bridge provided by the utility model;
[0020] Figure 2 A schematic diagram of the connection relationship between the finishing mill, the second horizontal plate and the second vertical plate provided by the utility model;
[0021] Figure 3 It is a schematic diagram of the connection relationship between the first vertical plate and the second vertical plate in the finishing mill bridge of the utility model.
[0022] In the figure:
[0023] 1. Bridge cross plate; 11. Feed end; 12. Discharge end; 13. First hinge; 14. Driving cylinder;
[0024] 2. second horizontal plate; 21. fourth hinge;
[0025] 3. First vertical plate; 31. Second hinge; 32. First fixing ring; 320. First protrusion; 33. Limit block; 34. Limit strip;
[0026] 4. second vertical plate; 41. third hinge; 411. third bolt; 412. third nut; 42. second fixing ring; 420. first recess;
[0027] 5. Mounting seat;
[0028] 6. Outriggers. DETAILED DESCRIPTION
[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0030] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inside", and "back" appear to indicate orientation or positional relationships, they are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0031] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, the connection 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, an indirect connection through an intermediate medium, or a connection between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.
[0032] 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.
[0033] Please also read Figures 1 to 3 , the finishing mill bridge provided by the utility model is now described. The finishing mill bridge is a finishing mill bridge, the finishing mill bridge comprises a bridge cross plate 1 and two first vertical plates 3; along the conveying direction of the plate, one end of the bridge cross plate 1 is a feed end 11, and the other end is a discharge end 12, a first hinge 13 is provided on the side of the bridge adjacent to the feed end 11, the bridge cross plate 1 is connected to a preset position by a lockable swing of the first hinge 13, the axial direction of the first hinge 13 is parallel to the horizontal direction and perpendicular to the conveying direction of the plate; the two first vertical plates 3 are arranged on opposite sides of the bridge cross plate 1 in the width direction, a second hinge 31 is provided on the side of the first vertical plate 3 adjacent to the feed end 11, the axial direction of the second hinge 31 is parallel to the vertical direction, the first vertical plate 3 is connected to one side of the bridge cross plate 1 by a lockable swing of the second hinge 31, and the two first vertical plates 3 are arranged above the bridge cross plate 1.
[0034] Compared with the prior art, the present embodiment can utilize the swinging of the bridge cross plate 1 to achieve docking between the conveyor lines of the finishing mill at different heights. In addition, the present embodiment can also utilize the swinging of the two first vertical plates 3 to guide the moving direction of the plate, and correct the offset generated during the movement of the plate, thereby solving the technical problem that the existing plate has an adverse effect on the edge quality of the steel strip due to deviation during transportation. Moreover, the present embodiment can also correct the position offset of the plate before it enters the finishing mill through the two first vertical plates 3, thereby preventing the technical problem of shearing failure caused by the position offset of the plate.
[0035] Based on the above embodiment, when the plate is offset during the docking process between the conveying roller and the finishing mill, only the corners of the first vertical plates 3 on both sides are in contact with the edge of the plate, and the two first vertical plates 3 have a poor guiding effect on the plate, and the edge of the plate is also easy to damage the plate surface of the first vertical plates 3. To solve the above problem, this embodiment proposes a more preferred implementation method. Specifically, the finishing mill bridge also includes a second vertical plate 4 and a third hinge 41. The second vertical plate 4 is connected to the side of the first vertical plate 3 away from the second hinge 31 through the third hinge 41, and the plate surface of the second vertical plate 4 is parallel to the conveying direction of the plate. The two second vertical plates 4 in this embodiment can change the single-point contact between the existing baffle and the plate into direct surface-to-surface contact, which can prevent the local part of the first vertical plate 3 from being continuously in contact with the edge of the plate and being damaged, and is conducive to improving the guiding effect of this embodiment on the movement of the plate.
[0036] Based on the above-mentioned inventive concept, the finishing mill bridge also includes a second transverse plate 2 and a fourth hinge 21. The second transverse plate 2 is connected to the side of the bridge transverse plate 1 away from the first hinge 13 through the lockable swing of the fourth hinge 21, and the plate surface of the second transverse plate 2 is parallel to the conveying direction of the plate. In this embodiment, the second transverse plate 2 can cooperate with the second vertical plate 4 to guide the plate from both sides and the ground at the same time, thereby reducing the probability of deviation during the discharge of the plate. In addition, in the specific use of this embodiment, the minimum spacing between the two first vertical plates 3 can be adapted to the plate during the conveying process through the swing of the first vertical plate 3, thereby reducing the gap between the two second vertical plates 4 and the plate, thereby improving the guiding effect on the plate.
[0037] Furthermore, the two third hinges 41 are respectively arranged on the opposite sides of the two first vertical plates 3, and the third hinges 41 include a third bolt 411 and a third nut 412 threadedly adapted to the third bolt 411. The opposite sides of the two first vertical plates 3 are each provided with a first fixing ring 32, and the opposite sides of the two second vertical plates 4 are each provided with a second fixing ring 42. The third bolt 411 coaxially penetrates the first fixing ring 32 and the second fixing ring 42, and the first fixing ring 32 is located below the second fixing ring 42. The lower end surface of the first fixing ring 32 is provided with a plurality of first protrusions 320, and each of the first protrusions 320 is evenly distributed on the lower end surface around the axis of the first fixing ring 32. The upper end surface of the second fixing ring 42 is provided with a first recess 420 corresponding to the first protrusion 320 one by one, and the first protrusion 320 can be inserted into the first recess 420. The third bolt 411 and the third nut 412 can lock the first protrusion 320 in the first recess 420. As configured above, the first protrusion 320 can be locked in the first recess 420 by tightening the first nut to lock the angle between the second vertical plate 4 and the first vertical plate 3, so that the plate surface of the second vertical plate 4 is parallel to the conveying direction of the plate, thereby improving the guiding effect of this embodiment during the plate conveying process.
[0038] As an optional embodiment, for the fourth hinge 21, it is arranged on the lower surface of the bridge cross plate 1, and includes a fourth bolt and a fourth nut threadedly adapted to the fourth bolt, the lower surface of the bridge cross plate 1 is provided with a third fixing ring, the lower surface of the second cross plate 2 is provided with a fourth fixing ring coaxial with the third fixing ring, the fourth bolt coaxially penetrates the third fixing ring and the fourth fixing ring, the third fixing ring and the fourth fixing ring are arranged in a stacked manner, the end face of the third fixing ring adjacent to the fourth fixing ring is provided with a plurality of second protrusions, each of the second protrusions is evenly distributed around the axis of the third fixing ring, the end face of the fourth fixing ring adjacent to the third fixing ring is provided with a second depression corresponding to the second protrusion, the second protrusion can be inserted into the second depression, and the fourth bolt and the fourth nut can lock the second protrusion in the second depression. Compared with the prior art, this embodiment can be used for plates of different specifications through the mutual cooperation of the second cross plate 2 and the second vertical plate 4, thereby improving the applicability of this embodiment to plates of different specifications.
[0039] In a feasible implementation, the finishing mill bridge further comprises a mounting seat 5, the bridge cross plate 1 is swingably arranged on the top of the mounting seat 5 through the first hinge 13, and a driving cylinder 14 is arranged on the side of the mounting seat 5 away from the first hinge 13, and the driving cylinder 14 can drive the bridge cross plate 1 to swing around the first hinge 13. In this embodiment, the bridge cross plate 1 swings around the first hinge 13 driven by the driving cylinder 14, thereby adjusting the upper and lower heights of the discharge end 12, so as to guide the plate to the finishing mill entrance at different heights.
[0040] In some embodiments, the two first vertical plates 3 are provided with a limit strip 34 and a limit block 33 on the opposite sides thereof, the limit strip 34 is welded to the first vertical plate 3, and the limit block 33 is movably arranged above the bridge cross plate 1 in the up-down direction and can press the limit strip 34. As set above, in this embodiment, the rotation angle of the first vertical plate 3 can be locked by the clamping adaptation between the limit strip 34 and the limit block 33, the operation process is convenient and quick, the overall structure is simple and reliable, and the durability is strong.
[0041] In some embodiments, a support leg 6 is provided at the bottom of the mounting base 5, the length direction of the support leg 6 is parallel to the up-down direction, and the support leg 6 can be extended and retracted in the up-down direction. In this way, the height of the base can be adjusted by extending and retracting the support leg 6 in this embodiment, so as to facilitate the adjustment or height adjustment of the feed end 11 of the bridge bottom plate.
[0042] More specifically, an outer circumference of the leg 6 is provided with an external thread, and the thread of the leg 6 is adapted to the bottom of the mounting seat 5 so that the telescopic length of the leg 6 at the bottom of the mounting seat 5 can be adjusted by rotating the leg 6 .
[0043] Based on the same inventive concept, the utility model also proposes a finishing mill, which includes the finishing mill bridge mentioned above.
[0044] Compared with the prior art, the finishing mill in the utility model has all the advantages of the above-mentioned finishing mill bridge, which will not be described here.
[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A finishing mill bridge, characterized in that: The finishing mill bridge comprises a bridge cross plate (1) and two first vertical plates (3); along the conveying direction of the plate, one end of the bridge cross plate (1) is a feed end (11), and the other end is a discharge end (12); a first hinge (13) is provided on a side of the bridge cross plate (1) adjacent to the feed end (11); the bridge cross plate (1) is lockably swung and connected to a preset position via the first hinge (13); the axial direction of the first hinge (13) is parallel to the horizontal direction and perpendicular to the The conveying direction of the plate; the two first vertical plates (3) are arranged on opposite sides of the bridge cross plate (1) in the width direction, and a second hinge (31) is provided on the side of the first vertical plate (3) adjacent to the feed end (11), and the axial direction of the second hinge (31) is parallel to the vertical direction. The first vertical plate (3) is connected to one side of the bridge cross plate (1) through the second hinge (31) in a lockable swinging manner, and the two first vertical plates (3) are both arranged above the bridge cross plate (1).
2. The finishing mill bridge according to claim 1, characterized in that: The finishing mill bridge further comprises a second vertical plate (4) and a third hinge (41); the second vertical plate (4) is connected to a side of the first vertical plate (3) away from the second hinge (31) in a lockable swinging manner via the third hinge (41); and the plate surface of the second vertical plate (4) is parallel to the conveying direction of the plate.
3. The finishing mill bridge according to claim 1, characterized in that: The finishing mill bridge also includes a second transverse plate (2) and a fourth hinge (21), wherein the second transverse plate (2) is connected to the side of the bridge transverse plate (1) away from the first hinge (13) in a lockable swinging manner via the fourth hinge (21), and the plate surface of the second transverse plate (2) is parallel to the conveying direction of the plate.
4. The finishing mill bridge according to claim 2, characterized in that: The two third hinges (41) are respectively arranged on opposite sides of the two first vertical plates (3), and the third hinges (41) include a third bolt (411) and a third nut (412) threadedly adapted to the third bolt (411). The opposite sides of the two first vertical plates (3) are each provided with a first fixing ring (32), and the opposite sides of the two second vertical plates (4) are each provided with a second fixing ring (42). The third bolt (411) coaxially penetrates the first fixing ring (32) and the second fixing ring (42), and the first fixing ring (32) is located at the second fixing ring (4 2), the lower end surface of the first fixing ring (32) is provided with a plurality of first protrusions (320), and the first protrusions (320) are evenly distributed on the lower end surface around the axis of the first fixing ring (32), and the upper end surface of the second fixing ring (42) is provided with first recesses (420) corresponding to the first protrusions (320) one by one, and the first protrusions (320) can be inserted into the first recesses (420), and the third bolts (411) and the third nuts (412) can lock the first protrusions (320) in the first recesses (420).
5. The finishing mill bridge according to claim 3, characterized in that: The fourth hinge (21) is arranged on the lower surface of the bridge cross plate (1), and the fourth hinge (21) includes a fourth bolt and a fourth nut threadedly adapted to the fourth bolt. The lower surface of the bridge cross plate (1) is provided with a third fixing ring, and the lower surface of the second cross plate (2) is provided with a fourth fixing ring coaxial with the third fixing ring. The fourth bolt coaxially penetrates the third fixing ring and the fourth fixing ring, and the third fixing ring and the fourth fixing ring are arranged in a stacked manner. The end surface of the third fixing ring adjacent to the fourth fixing ring is provided with a plurality of second protrusions, and each of the second protrusions is evenly distributed around the axis of the third fixing ring. The end surface of the fourth fixing ring adjacent to the third fixing ring is provided with a second recess corresponding to the second protrusion one by one, and the second protrusion can be inserted into the second recess. The fourth bolt and the fourth nut can lock the second protrusion in the second recess.
6. The finishing mill bridge according to claim 1, characterized in that: The finishing mill bridge also includes a mounting seat (5), the bridge cross plate (1) is swingably arranged on the top of the mounting seat (5) through the first hinge (13), and a driving cylinder (14) is provided on the side of the mounting seat (5) away from the first hinge (13), and the driving cylinder (14) can drive the bridge cross plate (1) to swing around the first hinge (13).
7. The finishing mill bridge according to claim 1, characterized in that: A limit strip (34) and a limit block (33) are provided on opposite sides of the two first vertical plates (3); the limit strip (34) is welded to the first vertical plates (3); and the limit block (33) is movably arranged above the bridge cross plate (1) in the up-down direction and can press the limit strip (34).
8. The finishing mill bridge according to claim 6, characterized in that: A support leg (6) is provided at the bottom of the mounting seat (5); the length direction of the support leg (6) is parallel to the up-down direction, and the support leg (6) can be extended and retracted in the up-down direction.
9. A finishing mill, characterized in that: It comprises the finishing mill bridge as claimed in any one of claims 1 to 8.