Positioning device for calendering of corrosion-resistant steel

Abstract

The application discloses a positioning device for corrosion-resistant steel calendering, and belongs to the technical field of steel processing. The positioning device comprises a base, a positioning mechanism and an upper pressing limiting mechanism. A linear guide rail is arranged on the base, and the positioning mechanism is arranged on the linear guide rail. The positioning mechanism comprises a mounting seat, which is located on the top surface of the linear guide rail. An adjusting assembly is arranged between the mounting seat and the linear guide rail. A transmission assembly is arranged between the adjusting assemblies. A positioning assembly is arranged on one side of the mounting seat. The upper pressing limiting mechanism comprises a support frame, which is arranged on the top end of the side wall of the base and is arranged above the two positioning mechanisms. A hydraulic rod is arranged on the top end of the support frame. A press roller assembly is arranged on the output end of the hydraulic rod. The positioning device has the functions of lateral positioning and vertical limiting, effectively avoids scratching the surface of the corrosion-resistant steel, is suitable for various specifications of steel, has the buffering and damping capacity, and improves the stability of the calendering and the quality of the finished product.

Description

Technical Field

[0001] This invention relates to the field of steel processing technology, and in particular to a positioning device for the rolling of corrosion-resistant steel. Background Technology

[0002] During the rolling and processing of corrosion-resistant steel, steel plates or billets are prone to lateral deviation due to factors such as feed offset and uneven rolling force, resulting in uneven rolled thickness, uneven edges, and even defects such as scraping and warping, which seriously affect the quality of finished products and production efficiency.

[0003] The positioning devices in existing rolling production lines mostly use fixed baffles or rigid guide wheels, which have the following drawbacks: First, rigid contact can easily scratch the surface of corrosion-resistant steel, damage its passivation layer, and reduce its corrosion resistance. Second, the positioning spacing is inconvenient to adjust, making it difficult to quickly adapt to steel of different widths. Third, they lack buffering and self-adaptive capabilities, and during high-speed rolling, they are prone to hard collisions caused by steel fluctuations, which aggravates wear and generates noise. Fourth, they can only achieve lateral limiting and cannot suppress the vertical movement of the steel, resulting in insufficient positioning stability. Summary of the Invention

[0004] The purpose of this invention is to provide a positioning device for the rolling of corrosion-resistant steel, which has both lateral positioning and vertical limiting functions, effectively avoids scratching the surface of corrosion-resistant steel, is compatible with various specifications of steel, and has buffering and shock absorption capabilities, thereby improving the stability of rolling and the quality of finished products.

[0005] To achieve the above objectives, the present invention provides a positioning device for the rolling of corrosion-resistant steel, comprising a base, positioning mechanisms symmetrically arranged on the base, and an upper pressure limiting mechanism disposed at the top of the side wall of the base; The base is equipped with linear guide rails, and both positioning mechanisms are mounted on the linear guide rails. The positioning mechanism includes a mounting base located on the top surface of a linear guide rail. An adjustment component is provided between the mounting base and the linear guide rail, and a transmission component is provided between the two adjustment components. A positioning component for achieving lateral positioning of the corrosion-resistant steel is provided on one side of the mounting base. The upper pressure limiting mechanism includes a support frame, which is located at the top of the side wall of the base and spans over the two positioning mechanisms. A hydraulic rod is provided at the top of the support frame, and a pressure roller assembly for vertically limiting the corrosion-resistant steel is provided at the output end of the hydraulic rod.

[0006] Preferably, the positioning component includes a roller frame and positioning rollers, the mounting base has a groove inside, a support is provided on the rear side of the roller frame, one end of the support is inserted into the groove, and a number of positioning rollers are evenly spaced on the front side of the roller frame.

[0007] Preferably, a compression spring is provided inside the slide groove, with one end of the compression spring connected to the side wall of the support and the other end of the compression spring in contact with the inner wall of the slide groove.

[0008] Preferably, the adjustment assembly includes a bidirectional lead screw and a slider. The bidirectional lead screw is disposed inside the linear guide rail, and the slider is disposed at the bottom of the mounting base. The bottom end of the slider is inserted into the linear guide rail and disposed on the bidirectional lead screw. The two ends of the bidirectional lead screw pass through the side wall of the base and are connected to the transmission assembly.

[0009] Preferably, the transmission assembly includes a first chain and a second chain. A first groove is provided inside the left side wall of the base. One end of the bidirectional lead screw passes through the first groove and is connected to a first sprocket. The first chain is disposed between the two first sprockets and meshes with the first sprockets. A second groove is provided inside the right side wall of the base. The other end of the bidirectional lead screw passes through the second groove and is connected to a second sprocket. The second chain is disposed between the two second sprockets and meshes with the second sprockets.

[0010] Preferably, a servo motor is provided on the left side wall of the base, the output shaft of the servo motor passes through the first groove and is connected to a third sprocket, and the third sprocket meshes with the first chain.

[0011] Preferably, the pressure roller assembly includes a roller frame and pressure rollers, with a mounting frame provided at the output end of the hydraulic rod. The mounting frame is connected to the top of the roller frame, and several pressure rollers are evenly spaced at the bottom of the roller frame.

[0012] Preferably, guide rods are provided on both sides of the top of the roller frame, and the top of the guide rods passes through the top of the support frame and is connected to a stop block.

[0013] Preferably, the mounting frame is equipped with a pressure sensor for detecting the downward pressure of the pressure roller on the corrosion-resistant steel.

[0014] Therefore, the present invention employs the aforementioned positioning device for corrosion-resistant steel rolling, which uses a front and rear double-set bidirectional lead screw and slider to form an adjustment assembly. This, along with the first and second chains built into both sides of the base, forms a double-sided synchronous transmission structure, ensuring the height synchronization of the adjustment on both sides. The support is embedded in the groove of the mounting base, and a compression spring inside the groove forms a lateral elastic buffer structure, absorbing the lateral fluctuation impact force during the movement of the corrosion-resistant steel and preventing rigid collision damage. The hydraulic rod drives the pressure roller assembly to rise and fall, and the guide rods and stops on both sides of the top of the roller frame form a vertical guiding constraint, ensuring smooth and unbiased lifting of the pressure roller assembly and effectively suppressing vertical jumping and edge warping during the corrosion-resistant steel rolling process.

[0015] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the positioning device for corrosion-resistant steel rolling in this invention; Figure 2This is a schematic diagram of the specific structure of the transmission component in this invention; Figure 3 This is a schematic diagram of the specific structure of the positioning component in this invention; Figure 4 This is a schematic diagram of the specific structure of the upper pressure limiting mechanism in this invention.

[0017] Figure Labels 1. Base; 2. Linear guide rail; 3. First groove; 4. Second groove; 5. Servo motor; 6. Mounting base; 7. Two-way lead screw; 8. Slider; 9. First chain; 10. Second chain; 11. First sprocket; 12. Second sprocket; 13. Third sprocket; 14. Roller frame; 15. Positioning roller; 16. Support; 17. Compression spring; 18. Slide groove; 19. Support frame; 20. Hydraulic rod; 21. Mounting frame; 22. Roller frame; 23. Pressure roller; 24. Guide rod; 25. Stop; 26. Pressure sensor. Detailed Implementation

[0018] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] like Figures 1-4 As shown, a positioning device for corrosion-resistant steel rolling includes a base 1, two positioning mechanisms symmetrically arranged on the base 1, and an upper pressure limiting mechanism located at the top of the side wall of the base 1. The entire device is installed at the feeding end of the corrosion-resistant steel rolling production line and is used to perform lateral correction and vertical limiting on the moving corrosion-resistant steel sheet to ensure the dimensional accuracy and surface quality of the rolling process.

[0021] Two linear guide rails 2 are provided on the top surface of the base 1. Both linear guide rails 2 extend along the width direction of the steel. Two positioning mechanisms are symmetrically arranged on the left and right sides and are slidably mounted on the two linear guide rails 2. A first groove 3 is formed inside the left side wall of the base 1, and a second groove 4 is formed inside the right side wall. Both the first groove 3 and the second groove 4 are closed internal cavities that can isolate oxide scale, dust and cooling waste liquid from the rolling mill site and protect the internal transmission components. A servo motor 5 is fixedly installed on the left outer wall of the base 1. The output shaft of the servo motor 5 is horizontally inserted into the first groove 3.

[0022] The positioning mechanism includes a mounting base 6, an adjustment component, a transmission component, and a positioning component. The adjustment component, located between the mounting base 6 and the linear guide rail 2, includes a bidirectional lead screw 7 and sliders 8. Each linear guide rail 2 has a bidirectional lead screw 7 mounted transversely inside. The two ends of the bidirectional lead screw 7 are rotatably supported between the two side walls of the base 1 via bearings, and the left and right ends of the bidirectional lead screw 7 extend outwards from the linear guide rail 2, corresponding to the first groove 3 on the left side and the second groove 4 on the right side of the base 1. Two sliders 8 are fixedly mounted at the bottom of each mounting base 6 corresponding to the two linear guide rails 2. The bottom ends of the sliders 8 are inserted downwards into the linear guide rail 2 and threadedly engage with the corresponding bidirectional lead screw 7. The thread direction and lead of the two bidirectional lead screws 7 are completely identical. When they rotate synchronously, they can drive the two mounting bases 6 to move synchronously towards or away from each other along the linear guide rail 2, achieving centering adjustment of the positioning distance.

[0023] A transmission assembly is positioned between two sets of adjustment assemblies to achieve synchronous operation of the two bidirectional lead screws 7. It includes a first chain 9, a second chain 10, two first sprockets 11, two second sprockets 12, and a third sprocket 13. The two first sprockets 11 are fixedly mounted on the left ends of the two bidirectional lead screws 7, both located inside the first groove 3. The first chain 9 wraps around the outer periphery of the two first sprockets 11 and engages with them. The two second sprockets 12 are fixedly mounted on the right ends of the two bidirectional lead screws 7, both located inside the second groove 4. The second chain 10 wraps around the outer periphery of the two second sprockets 12 and engages with them. The third sprocket 13 is fixedly mounted on the output shaft end of the servo motor 5, located inside the first groove 3, and engages with the first chain 9.

[0024] When adjusting the spacing, the servo motor 5 drives the third sprocket 13 to rotate, which in turn drives the two first sprockets 11 to rotate synchronously through the first chain 9. This causes the left ends of the two bidirectional lead screws 7 to rotate synchronously, and the two second sprockets 12 on the right end of the bidirectional lead screws 7 to form a synchronous constraint through the second chain 10. This ensures that the overall speed of the two bidirectional lead screws 7 is consistent and that they rotate synchronously. In turn, this drives the two mounting seats 6 to move smoothly and synchronously in the lateral direction, avoiding the skew and jamming problems that are prone to occur with single lead screw drive, and ensuring the centering and positioning accuracy.

[0025] A positioning assembly is located on the inner side of the mounting base 6 facing the steel, used for lateral positioning of the corrosion-resistant steel. It includes a roller frame 14, several positioning rollers 15, a support 16, and a compression spring 17. A laterally extending groove 18 is formed on the inner wall of the mounting base 6. One end of the support 16 is embedded in the groove 18 and can slide laterally along the groove 18. The other end of the support 16 extends out of the groove 18 and is fixedly connected to the roller frame 14. The roller frame 14 extends longitudinally, and several positioning rollers 15 are evenly spaced and rotated on the front side of the roller frame 14. The axes of the positioning rollers 15 are vertically oriented, and during operation, their circumferential surfaces form rolling contact with the side of the corrosion-resistant steel.

[0026] A compression spring 17 is laterally positioned inside the slide groove 18. One end of the compression spring 17 is fixedly connected to the side wall of the support 16, and the other end contacts the inner wall of the bottom of the slide groove 18. When the corrosion-resistant steel experiences lateral fluctuations during its movement, the positioning roller 15 is subjected to force that sequentially compresses the compression spring 17 through the roller frame 14 and the support 16, absorbing the impact energy and achieving flexible buffer positioning. This prevents rigid collisions from scratching the passivation layer on the surface of the corrosion-resistant steel, while also reducing equipment wear and operating noise.

[0027] The upper pressure limiting mechanism includes a support frame 19, a hydraulic rod 20, and a pressure roller assembly. The support frame 19 is a portal frame structure, with its two uprights fixedly installed at the bottom ends of the front and rear side walls of the base 1, respectively. The crossbeam of the support frame 19 spans directly above the two positioning mechanisms. The hydraulic rod 20 is vertically fixedly installed in the middle of the crossbeam of the support frame 19, with its output end extending downwards and fixedly connected to a mounting frame 21.

[0028] The pressure roller assembly includes a roller frame 22 and several pressure rollers 23. The roller frame 22 extends longitudinally and its top end is connected to the bottom of the mounting frame 21. Several pressure rollers 23 are evenly spaced and rotated at the bottom end of the roller frame 22 longitudinally. The axis of the pressure rollers 23 is arranged transversely, and their circumferential surface rolls in contact with the upper surface of the corrosion-resistant steel during operation.

[0029] Guide rods 24 are vertically fixed on the left and right sides of the top of the roller frame 22. The top of the guide rods 24 passes through the crossbeam of the support frame 19 and the top of the guide rods 24 is fixedly connected to a stop block 25. The guide rods 24 and the crossbeam of the support frame 19 slide together to guide the lifting and lowering movement of the pressure roller assembly and prevent deviation during the lifting and lowering process. The stop block 25 is used to limit the downward limit position of the pressure roller assembly to avoid excessive pressure and damage to the steel.

[0030] The mounting frame 21 is equipped with a pressure sensor 26. The detection end of the pressure sensor 26 is attached to the top of the roller frame 22 to detect the downward pressure of the pressure roller 23 on the corrosion-resistant steel in real time. This allows for precise adjustment of the output pressure of the hydraulic rod 20 according to the steel of different thicknesses and materials, while taking into account both the vertical limiting effect and the protection of the steel surface.

[0031] Working principle: According to the width specifications of the corrosion-resistant steel to be processed, the servo motor 5 is started. Through the synchronous transmission of the third sprocket 13, the first chain 9, the first sprocket 11, the second sprocket 12 and the second chain 10, the two bidirectional lead screws 7 are driven to rotate synchronously. This drives the two mounting seats 6 on the left and right to move synchronously towards or away from each other along the linear guide rail 2. The distance between the positioning rollers 15 on both sides is adjusted to the set value that matches the width of the steel, thus completing the centering and positioning preparation.

[0032] Start the hydraulic rod 20 to drive the pressure roller assembly to rise and fall vertically. Under the guidance and constraint of the guide rods 24 on both sides, it will descend smoothly until the pressure roller 23 lightly presses on the upper surface of the corrosion-resistant steel. The pressure sensor 26 reads the pressure value in real time and adjusts the pressure to the preset range to complete the vertical limit preparation.

[0033] During the rolling process, the corrosion-resistant steel travels longitudinally into the positioning area. Positioning rollers 15 on both sides roll in contact with the sides of the steel, providing lateral guidance and ensuring it travels along the centerline of the production line. Compression springs 17 absorb the impact of lateral fluctuations in the steel, achieving flexible positioning and preventing damage to the passivation layer. Simultaneously, the upper pressure rollers 23 roll in contact with the upper surface of the steel, suppressing vertical movement and edge warping during rolling. Combined with lateral positioning, this forms a bidirectional constraint, ensuring the stability of the rolling process and the precision of the finished product.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A positioning device for rolling corrosion-resistant steel, characterized in that: It includes a base, positioning mechanisms symmetrically arranged on the base, and an upper pressure limiting mechanism disposed at the top of the side wall of the base; The base is provided with a linear guide rail, and both positioning mechanisms are provided on the linear guide rail; The positioning mechanism includes a mounting base located on the top surface of the linear guide rail. An adjustment component is provided between the mounting base and the linear guide rail, and a transmission component is provided between the two adjustment components. A positioning component for achieving lateral positioning of the corrosion-resistant steel is provided on one side of the mounting base. The upper pressure limiting mechanism includes a support frame, which is disposed at the top of the side wall of the base and spans over the two positioning mechanisms. A hydraulic rod is disposed at the top of the support frame, and a pressure roller assembly for vertically limiting the corrosion-resistant steel is disposed at the output end of the hydraulic rod.

2. The positioning device for corrosion-resistant steel rolling processing according to claim 1, characterized in that: The positioning component includes a roller frame and positioning rollers. The mounting base has a sliding groove inside. A support is provided on the rear side of the roller frame. One end of the support is inserted into the sliding groove. Several positioning rollers are evenly spaced on the front side of the roller frame.

3. The positioning device for corrosion-resistant steel rolling processing according to claim 2, characterized in that: A compression spring is installed inside the slide groove. One end of the compression spring is connected to the side wall of the support, and the other end of the compression spring is in contact with the inner wall of the slide groove.

4. The positioning device for corrosion-resistant steel rolling processing according to claim 3, characterized in that: The adjustment assembly includes a bidirectional lead screw and a slider. The bidirectional lead screw is disposed inside the linear guide rail, and the slider is disposed at the bottom end of the mounting base. The bottom end of the slider is inserted into the linear guide rail and disposed on the bidirectional lead screw. The two ends of the bidirectional lead screw respectively pass through the side wall of the base and are connected to the transmission assembly.

5. A positioning device for rolling corrosion-resistant steel according to claim 4, characterized in that: The transmission assembly includes a first chain and a second chain. A first groove is provided inside the left side wall of the base. One end of the bidirectional lead screw passes through the first groove and is connected to a first sprocket. The first chain is disposed between two first sprockets and meshes with the first sprockets. A second groove is provided inside the right side wall of the base. The other end of the bidirectional lead screw passes through the second groove and is connected to a second sprocket. The second chain is disposed between two second sprockets and meshes with the second sprockets.

6. A positioning device for rolling corrosion-resistant steel according to claim 5, characterized in that: A servo motor is provided on the left side wall of the base. The output shaft of the servo motor passes through the first groove and is connected to a third sprocket. The third sprocket meshes with the first chain.

7. A positioning device for corrosion-resistant steel rolling processing according to claim 6, characterized in that: The pressure roller assembly includes a roller frame and pressure rollers. The output end of the hydraulic rod is provided with a mounting frame, which is connected to the top of the roller frame. Several pressure rollers are evenly spaced at the bottom of the roller frame.

8. A positioning device for corrosion-resistant steel rolling processing according to claim 7, characterized in that: Guide rods are provided on both sides of the top of the roller frame, and the top of the guide rods passes through the top of the support frame and is connected to a stop block.

9. A positioning device for rolling corrosion-resistant steel according to claim 8, characterized in that: The mounting frame is equipped with a pressure sensor for detecting the downward pressure of the pressure roller on the corrosion-resistant steel.

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