Hot continuous rolling side guide plate device

Abstract

The invention discloses a side guide plate device for hot continuous rolling. The side guide plate device comprises a side guide plate body and a plurality of vertical hydraulic driving mechanisms, the vertical hydraulic driving mechanism comprises a rack, a driving assembly and an adjusting assembly. The driving assembly comprises a first push rod and a first hydraulic cylinder which are matched with each other, a first sliding groove is formed in the first push rod, a fixing support is fixedly arranged on the rack, one side of the fixing support is rotationally connected with a limiting wheel, and the limiting wheel is in left-right sliding fit with the first sliding groove; a second connecting piece is fixed to one end of the top of the first push rod, a first connecting rod is hinged between the first connecting piece and the second connecting piece, the first push rod is provided with a hollow channel, a second push rod is slidably arranged in the hollow channel of the first push rod, and one end of the second push rod penetrates out of the first push rod and is fixedly provided with a third connecting piece. The third connecting piece is hinged to the side guide plate body; the occupied area of a workshop can be reduced, and passing of workers and goods is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of hot rolling equipment, in particular to a hot rolling side guide plate device. Background Art

[0002] The side guide device, commonly known as the pusher, is usually arranged at the entrance and exit of the rolling mill of the hot rolling production line. It is a device used to center the plate and strip to ensure the quality of rolling.

[0003] The side guide plate device of the continuous rolling mill in the prior art is arranged horizontally, and its hydraulic drive module (including hydraulic cylinder and push rod assembly) is installed on one side of the roller. Due to the long stroke of the hydraulic cylinder and the structural size of the push rod mechanism, this layout causes the equipment to occupy too much area. In particular, the horizontal arrangement of the hydraulic cylinder and the push rod assembly occupies 3.2m of the lateral space of the production line, resulting in the width of the material transfer channel being reduced to less than 1.5m, making the production site appear crowded, which is not conducive to the handling of objects and the passage of personnel; in addition, the manufacture and installation of the device must meet the high precision requirement of ±1mm, and the core difficulty lies in the precision coordination of the push rod assemblies on the left and right sides. When the push rod assembly is out of tolerance, the following technical problems will be caused: non-parallel deviations will occur in the parallel sections on both sides of the assembly, and the process parallelism (≤0.5mm / m) of the overall device and the rolling center line cannot be guaranteed. Limited by the inherent characteristics of the gear transmission structure, the hydraulic drive module does not have an online dynamic adjustment function, and the accumulated deviation cannot be eliminated by unilateral rack position compensation. Before the production line is put into operation, this error can be corrected by remanufacturing / installation, but it is time-consuming and labor-intensive and may delay the construction period; once the production line is put into operation, it can only be corrected by stopping production and repairing the side guide plate shape to barely meet the usage requirements, which is also time-consuming and labor-intensive and affects production quality and capacity. Summary of the invention

[0004] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide a hot rolling side guide plate device.

[0005] To achieve the above object, the present invention provides the following technical solution: a hot rolling side guide plate device, which is used to be installed on the left and right sides of the plate strip to control the centering of the plate strip, comprising:

[0006] A side guide body and a plurality of vertical hydraulic drive mechanisms, wherein the plurality of vertical hydraulic drive mechanisms are arranged side by side on the same side of the side guide body along the front-rear direction;

[0007] The vertical hydraulic drive mechanism includes a frame, a drive assembly and an adjustment assembly;

[0008] The driving assembly includes a first push rod and a first hydraulic cylinder. The first push rod is slidably arranged left and right on the frame. First sliding grooves are respectively opened on the upper and lower sides of the first push rod. A fixed bracket is fixedly arranged on the frame. One side of the fixed bracket is rotatably connected with a limiting wheel. The limiting wheel is in left-right sliding fit with the first sliding groove. The first hydraulic cylinder is vertically fixed on the frame and corresponds to the upper side of the first push rod. A first connecting piece is fixed at the bottom end of the first hydraulic cylinder. One end of the top of the first push rod is fixed with a second connecting piece. A first connecting rod is hinged between the first connecting piece and the second connecting piece. The first push rod has a hollow channel. A second push rod is slidably arranged in the hollow channel of the first push rod. One end of the second push rod penetrates out of the first push rod and is fixed with a third connecting piece. The third connecting piece is hinged with the side guide plate body;

[0009] The adjusting assembly includes a second hydraulic cylinder. The second hydraulic cylinder is vertically fixed on the top of the frame. A first connecting frame is fixedly installed at the bottom end of the second hydraulic cylinder. The first connecting frame is in an "n" shape. Second connecting frames are respectively fixed on the front and rear sides of the bottom of the first connecting frame. The second connecting frame is provided with a third sliding groove extending left and right. Second sliding grooves extending left and right are respectively opened on the front and rear sides of the first push rod. Fixed shafts are respectively fixed on both sides of the second push rod. The fixed shafts are slidably arranged left and right in the second sliding groove. One end of the fixed shaft penetrates out of the second sliding groove and is rotatably connected with a second connecting rod. The other end of the second connecting rod far from the fixed shaft is rotatably connected with a rotating shaft. Fixed pieces are respectively fixed on both sides of the first push rod. The fixed pieces are provided with grooves extending up and down. One end of the rotating shaft is slidably arranged in the third sliding groove, and the other end of the rotating shaft is slidably arranged in the groove.

[0010] Preferably, it further includes a strip. The two side guide plate bodies are respectively located on the left and right sides of the strip, and the two side guide plate bodies are symmetrically distributed with respect to the rolling center line of the strip.

[0011] Preferably, the width of the limiting wheel corresponds to the width of the first sliding groove. The limiting wheel contacts the inner wall of the first sliding groove. The limiting wheels are located on the upper and lower sides of the first push rod, and the upper and lower limiting wheels cooperate with each other to block and limit the first push rod in the up and down directions.

[0012] Preferably, it further includes a proportional valve and a flow distributor. The first hydraulic cylinder and the second hydraulic cylinder are respectively connected to the proportional valve to achieve control. The first hydraulic cylinders on the driving assemblies on the same side are respectively connected to the flow distributor to achieve synchronous movement control.

[0013] Preferably, the first connecting piece is located above the second connecting piece close to the side guide plate body. The first connecting rod is obliquely hinged between the first connecting piece and the second connecting piece. By driving the first connecting piece to move upward by the first hydraulic cylinder, the first connecting rod is further enabled to pull the second connecting piece to move towards the strip.

[0014] Preferably, the inner wall of the third chute is in extrusion contact with the rotating shaft, and the side away from the vertical hydraulic driving mechanism of the side guide plate body is in extrusion contact with the strip.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) By vertically arranging the first hydraulic cylinder and controlling the first connecting piece to move up and down in the present invention, the first connecting rod can be driven to act through the first connecting piece, so that the first connecting rod drives the first push rod to move left and right. Furthermore, through the movement of the first push rod, the side guide plate body is finally driven to center the strip, thereby reducing the occupied area of the workshop and facilitating the passage of workers and goods.

[0017] (2) By controlling the first connecting frame to move up and down through the second hydraulic cylinder in the present invention, the second connecting frame can be controlled to move up and down through the first connecting frame. When the second connecting frame moves up and down, the rotating shaft will be extruded through the third chute, causing the rotating shaft to move up and down along the inner side of the groove, driving the second connecting rod to act, and then driving the fixed shaft to move left and right in the second chute, and further driving the second push rod and the third connecting piece to move left and right. Finally, through the cooperation between the third connecting piece and the side guide plate body, the process parallelism between the side guide plate body and the rolling center line is adjusted and controlled, achieving high-precision assembly and reducing errors.

[0018] (3) The hot continuous rolling side guide plate devices on the left and right sides of the strip in the present invention are independently controlled, so that the positions of the side guide plate bodies on the hot continuous rolling side guide plate devices on the left and right sides can be controlled and adjusted separately, with relatively low requirements for installation accuracy, simple structure, reduced manufacturing difficulty, and cost savings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 is the present invention Figure 1 partial enlarged structural schematic diagram;

[0021] Figure 3 is the present invention Figure 2 enlarged structural schematic diagram at A in;

[0022] Figure 4 is the centering structural schematic diagram of the present invention for the strip;

[0023] Figure 5 is the partial sectional structural schematic diagram of the side of the present invention;

[0024] Figure 6 is the disassembly structural schematic diagram of the first push rod of the present invention;

[0025] Figure 7Schematic diagram of the disassembly structure of the second connecting rod of the present invention.

[0026] In the figure: 1, frame; 2, first push rod; 3, first chute; 4, fixed bracket; 5, limiting wheel; 6, first hydraulic cylinder; 7, first connecting member; 8, second connecting member; 9, first connecting rod; 10, second push rod; 11, third connecting member; 12, side guide plate body; 13, second hydraulic cylinder; 14, first connecting frame; 15, second chute; 16, second connecting frame; 17, third chute; 18, fixed shaft; 19, second connecting rod; 20, rotating shaft; 21, fixing member; 22, groove. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] As Figures 1-7 shown, the present invention provides a hot continuous rolling side guide plate device for being installed on the left and right sides of a strip to control the centering of the strip, including:

[0029] The side guide plate body 12 and a plurality of vertical hydraulic driving mechanisms, and the plurality of vertical hydraulic driving mechanisms are arranged side by side in the front-rear direction on the same side of the side guide plate body 12;

[0030] The vertical hydraulic driving mechanism includes a frame 1, a driving component and an adjusting component;

[0031] The driving component includes a first push rod 2 and a first hydraulic cylinder 6. The first push rod 2 is slidably arranged on the frame 1 in the left-right direction. First chutes 3 are respectively opened on the upper and lower sides of the first push rod 2. A fixed bracket 4 is fixedly arranged on the frame 1. One side of the fixed bracket 4 is rotatably connected with a limiting wheel 5. The limiting wheel is in left-right sliding fit with the first chute 3. The first hydraulic cylinder is vertically fixed on the frame 1 and corresponds to the upper side of the first push rod 2. A first connecting member 7 is fixed to the bottom end of the first hydraulic cylinder 6. One end of the top of the first push rod 2 is fixed with a second connecting member 8. A first connecting rod 9 is hinged between the first connecting member 7 and the second connecting member 8. The first push rod 2 has a hollow channel. A second push rod 10 is slidably arranged in the hollow channel of the first push rod 2. One end of the second push rod 10 passes through the outside of the first push rod 2 and is fixed with a third connecting member 11. The third connecting member 11 is hinged to the side guide plate body 12;

[0032] The adjusting assembly includes a second hydraulic cylinder 13 which is vertically fixed to the top of the frame 1. A first connecting frame 14 is fixedly installed at the bottom end of the second hydraulic cylinder 13. The first connecting frame 14 is in an "n" shape. Second connecting frames 16 are respectively fixed to the front and rear sides of the bottom of the first connecting frame 14. The second connecting frames 16 are provided with third chutes 17 extending left and right. Second chutes 15 extending left and right are respectively formed on the front and rear sides of the first push rod 2. Fixed shafts 18 are respectively fixedly arranged on both sides of the second push rod 10. The fixed shafts 18 are slidably arranged left and right in the second chutes 15. One end of the fixed shaft 18 penetrates out of the second chute 15 and is rotatably connected to a second connecting rod 19. The other end of the second connecting rod 19 away from the fixed shaft 18 is rotatably connected to a rotating shaft 20. Fixed members 21 are respectively fixed to both sides of the first push rod 2. The fixed members 21 are provided with grooves 22 extending up and down. One end of the rotating shaft 20 is slidably arranged left and right in the third chute 17, and the other end of the rotating shaft 20 is slidably arranged up and down in the groove 22.

[0033] As Figure 4 shown, the two side guide plate bodies 12 are respectively located on the left and right sides of the strip. The two side guide plate bodies 12 are symmetrically distributed with respect to the rolling center line of the strip. The third connecting member 11 can be controlled by the hot continuous rolling side guide plate device to drive the side guide plate body 12 to move, facilitating the control of the left and right side guide plate bodies 12 to be parallel to the rolling center line and preventing deviation.

[0034] The working principle of the present invention is as follows:

[0035] The first hydraulic cylinder 6 controls the first connecting member 7 to move upward, so that the first connecting rod 9 can pull the second connecting member 8 to move closer to the side guide plate body 12 (this direction is in the left and right direction), and then drive the first push rod 2 to move closer to the strip. The upper and lower limit and left and right sliding guidance of the first push rod 2 are realized through the cooperation of the limit wheel 5 and the first chute 3. At the same time, the second push rod 10, the third connecting member 11 and the side guide plate body 12 will move closer to the strip synchronously with the first push rod 2; similarly, conversely, when the first hydraulic cylinder 6 controls the first connecting member 7 to move downward, the second push rod 10, the third connecting member 11 and the side guide plate body 12 will move away from the strip synchronously with the first push rod 2; that is, the purpose of adjusting the inclination of the strip is achieved by the operation of the first hydraulic cylinder 6, so that the side guide plate body 12 is parallel to the rolling center line, thereby realizing the control of the strip to be centered.

[0036] When the side guide plate body 12 is not parallel to the strip due to factors such as installation accuracy, it is adjusted by the operation of the second hydraulic cylinder 13. Specifically, when the second hydraulic cylinder 13 drives the first connecting frame 14 to move downward, the second connecting frame 16 also moves downward synchronously, thereby driving the rotating shaft 20 to slide downward in the third chute 17, thus pushing the second connecting rod 19 to act. The second connecting rod 19 drives the fixed shaft 18 to move closer to the strip in the second chute 15, and further enables the second push rod 10, the third connecting member 11 and the side guide plate body 12 to move closer to the strip synchronously. Similarly, conversely, when the second hydraulic cylinder 13 drives the first connecting frame 14 to move upward, the second connecting rod 19 drives the fixed shaft 18 to move away from the strip in the second chute 15, and the second push rod 10, the third connecting member 11 and the side guide plate body 12 move away from the strip synchronously. The inclination of the side guide plate body 12 is adjusted corresponding to the actual requirements, and further the process parallelism between the side guide plate body 12 and the rolling center line can be controlled, so as to reduce errors and ensure the installation accuracy.

[0037] Among them, since both the first hydraulic cylinder 6 and the second hydraulic cylinder 13 are vertically arranged, the occupied area of the workshop can be reduced, which is convenient for the passage of workers and goods.

[0038] As Figure 2 、 3 shown, in this embodiment, the width of the limiting wheel 5 corresponds to the width of the first chute 3. The limiting wheel 5 contacts the inner wall of the first chute 3. The limiting wheels 5 are located on the upper and lower sides of the first push rod 2, and the limiting wheels 5 on the upper and lower sides cooperate with each other to block and limit the first push rod 2 in the up and down directions. Through the cooperation between the limiting wheel 5 and the first chute 3, when the first chute 3 moves, the limiting wheel 5 will roll along the first chute 3. Therefore, the friction generated when the first push rod 2 moves can be reduced, and the first push rod 2 is blocked and limited on the upper and lower sides by the limiting wheel 5 to prevent the first push rod 2 from tilting up and down during movement.

[0039] In this embodiment, a proportional valve and a flow distributor are further included. The first hydraulic cylinder 6 and the second hydraulic cylinder 13 are respectively connected to the proportional valve to achieve control, and the first hydraulic cylinders 6 on the driving components on the same side are respectively connected to the flow distributor to achieve synchronous movement control. Through the setting of the proportional valve, the flow rate and pressure of the hydraulic oil can be accurately controlled according to the magnitude of the input signal, so as to achieve accurate control of the strokes of the first hydraulic cylinder 6 and the second hydraulic cylinder 13, and further accurately control the parallelism of the two side guide plate bodies 12. At the same time, since the first hydraulic cylinders 6 on the same side use the flow distributor for synchronous movement, the two first push rods 2 can be controlled to move synchronously, thus preventing the side guide plate body 12 from tilting.

[0040] In this embodiment, the first connecting member 7 is located above the second connecting member 8 on the side close to the side guide plate body 12. The first connecting rod 9 is obliquely hinged between the first connecting member 7 and the second connecting member 8. The first hydraulic cylinder 6 is used to drive the first connecting member 7 to move upward, so that the first connecting rod 9 pulls the second connecting member 8 to move toward the strip, and then drives the first push rod 2, the second push rod 10, the third connecting member 11 and the side guide plate body 12 to move synchronously toward the strip and approach it; the first hydraulic cylinder 6 is used to drive the first connecting member 7 to move downward, so that the first connecting rod 9 pushes the second connecting member 8 to move away from the strip, and then drives the first push rod 2, the second push rod 10, the third connecting member 11 and the side guide plate body 12 to move synchronously away from the strip to achieve reset.

[0041] In this embodiment, the inner wall of the third chute 17 is in pressing contact with the rotating shaft 20, and the side of the side guide plate body 12 away from the vertical hydraulic driving mechanism is in pressing contact with the strip, so as to achieve precise adjustment and limiting functions.

[0042] In summary, the present invention has the following advantages:

[0043] 1. By vertically arranging the first hydraulic cylinder 6 and controlling the first connecting member 7 to move up and down, the present invention can drive the first connecting rod 9 to act through the first connecting member 7, so that the first connecting rod 9 drives the first push rod 2 to move left and right. Furthermore, through the movement of the first push rod 2, the side guide plate body 12 is finally driven to center the strip, which can reduce the occupied area of the workshop and facilitate the passage of staff and goods.

[0044] 2. By controlling the first connecting frame 14 to move up and down through the second hydraulic cylinder 13, the present invention can control the second connecting frame 16 to move up and down through the first connecting frame 14. When the second connecting frame 16 moves up and down, it will press the rotating shaft 20 through the third chute 17, causing the rotating shaft 20 to move up and down along the inner side of the groove 22, driving the second connecting rod 19 to act, and then driving the fixed shaft 18 to move left and right in the second chute 15, and then driving the second push rod 10 and the third connecting member 11 to move left and right. Finally, through the cooperation between the third connecting member 11 and the side guide plate body 12, the process parallelism between the side guide plate body 12 and the rolling center line is adjusted and controlled, high-precision assembly is achieved, and errors are reduced.

[0045] 3. The hot continuous rolling side guide plate devices on the left and right sides of the strip are independently controlled in the present invention, so that the positions of the side guide plate bodies 12 on the hot continuous rolling side guide plate devices on the left and right sides can be independently controlled and adjusted separately. The requirement for installation accuracy is relatively low, the structure is simple, the manufacturing difficulty is reduced, and the cost is saved.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot rolling side guide device, used to be installed on the left and right sides of the strip to control the centering of the strip, characterized in that: include: A side guide plate body (12) and a plurality of vertical hydraulic drive mechanisms, wherein the plurality of vertical hydraulic drive mechanisms are arranged side by side along the front-rear direction on the same side of the side guide plate body (12); The vertical hydraulic drive mechanism comprises a frame (1), a drive component and an adjustment component; The driving assembly comprises a first push rod (2) and a first hydraulic cylinder (6). The first push rod (2) is slidably arranged on the frame (1) to the left and right. The first slide grooves (3) are respectively provided on the upper and lower sides of the first push rod (2). A fixed bracket (4) is fixedly arranged on the frame (1). One side of the fixed bracket (4) is rotatably connected to a limiting wheel (5). The limiting wheel cooperates with the first slide groove (3) to slide to the left and right. The first hydraulic cylinder is vertically fixed on the frame (1) and corresponds to the upper part of the first push rod (2). The bottom end of the first hydraulic cylinder (6) A first connecting member (7) is fixed, a second connecting member (8) is fixed at one end of the top of the first push rod (2), a first connecting rod (9) is hinged between the first connecting member (7) and the second connecting member (8), the first push rod (2) has a hollow channel, a second push rod (10) is slidably arranged in the hollow channel of the first push rod (2), one end of the second push rod (10) passes through the outside of the first push rod (2) and is fixed with a third connecting member (11), and the third connecting member (11) is hingedly arranged with the side guide plate body (12); The adjustment component comprises a second hydraulic cylinder (13), the second hydraulic cylinder (13) is vertically fixed on the top of the frame (1), a first connecting frame (14) is fixedly installed at the bottom end of the second hydraulic cylinder (13), the first connecting frame (14) is in an "n" shape, a second connecting frame (16) is fixed on the front and rear sides of the bottom of the first connecting frame (14), the second connecting frame (16) is provided with a third slide groove (17) extending left and right, the front and rear sides of the first push rod (2) are respectively provided with a second slide groove (15) extending left and right, and the two sides of the second push rod (10) are respectively fixed with a fixed shaft (18), the fixed shaft (18) is slidably arranged in the second slide groove (15) to the left and right, one end of the fixed shaft (18) passes through the second slide groove (15) and is rotatably connected to the second connecting rod (19), and the second connecting rod (19) is rotatably connected to the rotating shaft (20) at one end away from the fixed shaft (18), and the first push rod (2) is respectively fixed with a fixing member (21) on both sides, and the fixing member (21) is provided with a groove (22) extending up and down, one end of the rotating shaft (20) is slidably arranged in the third slide groove (17) to the left and right, and the other end of the rotating shaft (20) is slidably arranged in the groove (22) to the up and down.

2. The hot rolling side guide device according to claim 1, characterized in that: It also includes a plate strip, two side guide plate bodies (12) are respectively located on the left and right sides of the plate strip, and the two side guide plate bodies (12) are symmetrically distributed relative to the rolling center line of the plate strip.

3. The hot rolling side guide device according to claim 1, characterized in that: The width of the limiting wheel (5) corresponds to the width of the first slide groove (3), the limiting wheel (5) contacts the inner wall of the first slide groove (3), the limiting wheel (5) is located on the upper and lower sides of the first push rod (2), and the limiting wheels (5) on the upper and lower sides cooperate with each other to block and limit the first push rod (2) in the upper and lower directions.

4. The hot rolling side guide device according to claim 1, characterized in that: It also includes a proportional valve and a flow distributor, the first hydraulic cylinder (6) and the second hydraulic cylinder (13) are respectively connected to the proportional valve to achieve control, and the first hydraulic cylinder (6) on the drive assembly on the same side is respectively connected to the flow distributor to achieve synchronous movement control.

5. The hot rolling side guide device according to claim 2, characterized in that: The first connecting member (7) is located above the second connecting member (8) on the side close to the side guide plate body (12), and the first connecting rod (9) is hingedly connected between the first connecting member (7) and the second connecting member (8). The first connecting member (7) is driven to move upward by the first hydraulic cylinder (6), so that the first connecting rod (9) pulls the second connecting member (8) to move in the direction of the plate strip.

6. The hot rolling side guide device according to claim 2, characterized in that: The inner wall of the third slide groove (17) is in pressure contact with the rotating shaft (20), and the side of the side guide plate body (12) away from the vertical hydraulic drive mechanism is in pressure contact with the plate strip.

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