A high-speed wire unwinding correction device

Abstract

This utility model relates to the field of high-speed wire rod rolling technology, specifically disclosing a high-speed wire rod uncoiling correction device, including a first section of densely packed roller conveyor and an air-cooled roller conveyor; the first section of densely packed roller conveyor includes a first section roller conveyor frame, a correction roller group one and a correction roller group two, which are rotatably installed in the first section roller conveyor frame, and the drive ends of the correction roller group one and the correction roller group two are respectively connected to a reduction motor one; the air-cooled roller conveyor includes an air-cooling frame, an air-cooling roller group one and an air-cooling roller group two, which are rotatably installed in the air-cooling frame, and the drive ends of the air-cooling roller group one and the air-cooling roller group two are respectively connected to a reduction motor two. Through the two independently operating correction roller groups, the speed on both sides of the uncoiling can be independently adjusted, and the uncoiling is adjusted to the center of the roller conveyor by the speed difference on both sides. The operation is simple and easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of high-speed wire rod rolling technology, specifically a high-speed wire rod unwinding and correction device. Background Technology

[0002] In the high-speed wire rod production process, the high-temperature wire rod moving in a straight line changes its trajectory after passing through the spinning machine and falls onto the Steyrmo transport roller conveyor in the form of loose coils, facilitating subsequent controlled cooling. To prevent the loose coils from getting stuck in the gaps of the roller conveyor, the first section of the roller conveyor adopts a close-packed arrangement, and air outlet positions are left between the subsequent air-cooled roller conveyors to meet the requirement of rapid cooling of the loose coils on the Steyrmo roller conveyor.

[0003] However, during the spinning and unwinding process of wire rods, the deviation of unwinding on the roller conveyor due to various reasons becomes an important factor affecting the surface quality and coil shape of the wire rods. The deviation of the unwinding needs to be corrected in time, otherwise it may become more and more deviated, and may even rub against one side of the roller conveyor wall, causing local scratches and defects, which cannot meet the surface quality requirements of the wire rod products.

[0004] The purpose of this invention is to provide a high-speed wire unwinding correction device and method to solve the problems mentioned in the background art. Utility Model Content

[0005] To achieve the above objectives, this utility model provides a high-speed wire unwinding and correction device, including a first section of densely packed roller conveyor and an air-cooled roller conveyor;

[0006] The first section of the densely packed roller conveyor includes a first section roller conveyor frame, a first set of correction rollers and a second set of correction rollers. The first set of correction rollers and the second set of correction rollers are rotatably installed in the first section roller conveyor frame. The drive ends of the first set of correction rollers and the second set of correction rollers are respectively connected to a reduction motor.

[0007] The first set of the correction rollers is composed of several conical rollers, and the second set of the correction rollers is composed of several conical rollers. The first and second conical rollers are arranged alternately in parallel along the material conveying direction, and the radius of the first conical rollers is distributed in the opposite direction to that of the second conical rollers from large to small.

[0008] The air-cooled roller conveyor includes an air-cooled frame, an air-cooled roller group one, and an air-cooled roller group two. The air-cooled roller group one and the air-cooled roller group two are rotatably installed in the air-cooled frame. The drive ends of the air-cooled roller group one and the air-cooled roller group two are respectively connected to a reduction motor two.

[0009] The first air-cooled roller group is composed of several first-axis correction rollers, and the second air-cooled roller group is composed of several second-axis correction rollers. The first-axis correction rollers and the second-axis correction rollers are arranged alternately in parallel along the material conveying direction, and the radius of the first-axis correction rollers is distributed in the opposite direction to that of the second-axis correction rollers from large to small.

[0010] As a further improvement of this utility model, the two ends of the first conical roller and the second conical roller are rotatably connected to both sides of the first section of the roller conveyor frame, and the two ends of the first straightening roller and the second straightening roller are rotatably connected to both sides of the air-cooled frame. The large-diameter ends of the first conical roller, the second conical roller, the first straightening roller and the second straightening roller are all connected with double-row sprockets. The double-row sprockets between adjacent first conical rollers or second conical rollers or first straightening rollers or second straightening rollers are connected in series by chains. The last conical roller or second conical roller or first straightening roller is connected to a universal coupling, and is connected to the first geared motor or the second geared motor through the universal coupling.

[0011] As a further improvement of this utility model, both the first and second correction rollers include a flat roller section and a conical section. The flat roller section is fixedly connected to the small-diameter end of the conical section, and the diameter of the flat roller section is smaller than the diameter of the small end of the conical section.

[0012] As a further improvement of this utility model, the taper angle of the first tapered roller, the second tapered roller, and the tapered segment is all 0.5-2°.

[0013] As a further improvement of this utility model, the gap between the first conical roller and the second conical roller is 5mm-7mm.

[0014] As a further improvement of this utility model, the length of the flat roller section is half that of the conical section.

[0015] As a further improvement of this utility model, the gap between the conical section of the first and second correction rollers and the adjacent flat roller section is 50mm-100mm.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model features a first and a second set of correction rollers on the first section of the densely packed roller conveyor. By setting two independently operating roller sets on the first section of the densely packed roller conveyor, this structure breaks the traditional single roller set operation mode of conveyor roller conveyors. By giving the two roller sets independent operation capabilities, it provides a hardware foundation for diversified correction operations and achieves precise correction. When the loose roll slightly deviates to one side of the roller conveyor, the self-correcting function of the tapered roller conveyor will cause the loose roll to deviate to the side with lower speed. When the material deviates significantly, by significantly changing the roller speed of the first and second set of correction rollers, a speed difference is formed to generate lateral force to bring the material back to the correct track. This effectively covers various deviation scenarios in production and greatly improves the applicability of the equipment.

[0018] 2. The air-cooled roller conveyor connected to the first section of the densely packed roller conveyor uses the same design principle. By adjusting the rotation speed of the first and second air-cooled roller groups, the loose coils conveyed by the first section of the densely packed roller conveyor are corrected, ensuring that the loose coils have a stable and reliable correction capability throughout the entire conveying process. Even if the loose coils deviate due to changes in shape and weight distribution caused by temperature changes during the air-cooling process, the first and second air-cooled roller groups can respond and correct them in time, ensuring the continuity and stability of the entire conveying system and avoiding production interruptions and losses caused by the deviation of the loose coils.

[0019] 3. This utility model uses a staggered arrangement of the large and small ends of the conical rollers and is driven independently by two motors to achieve independent speed adjustment on both sides of the unwinding. The unwinding is adjusted to the center of the roller conveyor by the speed difference between the two sides. It is simple to operate and easy to maintain. Attached Figure Description

[0020] Figure 1 This is a top view of the overall structure of this utility model;

[0021] Figure 2 This is a top view of the structure of the first section of the roller conveyor and the air-cooled roller conveyor of this utility model;

[0022] Figure 3 This is a top view of the internal structure of the first section of the roller conveyor of this utility model;

[0023] Figure 4 This is a top view of the internal structure of the air-cooled roller conveyor of this utility model;

[0024] Figure 5 This is a front view of the first section of the conical roller of this utility model;

[0025] Figure 6 This is a front view of the conical roller of the air-cooled section of this utility model;

[0026] Figure 7 This is a schematic diagram illustrating the correction principle of this utility model.

[0027] In the diagram: 2. Unrolled roll; 3. First section of closely spaced roller conveyor; 31. Correcting roller group one; 311. Conical roller one; 32. Correcting roller group two; 321. Conical roller one; 33. First section of roller conveyor frame; 4. Air-cooled roller conveyor; 41. Air-cooled roller group one; 411. Correcting roller one; 42. Air-cooled roller group two; 43. Air-cooled frame; 44. Flat roller section; 45. Conical section; 5. Universal coupling; 6. Gear motor one; 7. Double row sprocket; 8. Chain; 9. Gear motor two; X. Roller conveyor center; Z. Unrolled roll center one; Z'. Unrolled roll center two; L. Left side of roller conveyor; R. Right side of roller conveyor; H. Roller conveyor width. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Please see Figure 1-7 This utility model provides a high-speed wire unwinding 2 correction device, including a first section of densely arranged roller conveyor 3 and an air-cooled roller conveyor 4;

[0032] The first section of the densely packed roller conveyor 3 includes a first section roller conveyor frame 33, a first set of correction rollers 31 and a second set of correction rollers 32. The first set of correction rollers 31 and the second set of correction rollers 32 are rotatably installed in the first section roller conveyor frame 33. The drive ends of the first set of correction rollers 31 and the second set of correction rollers 32 are respectively connected to a reduction motor 6.

[0033] The first correction roller group 31 is composed of several conical rollers 311, and the second correction roller group 32 is composed of several conical rollers 321. The first conical rollers 311 and the second conical rollers 321 are arranged alternately in parallel along the material conveying direction, and the radius of the first conical rollers 311 is distributed in the opposite direction to that of the second conical rollers 321 from large to small. In this device, the entire roller body of the conical roller only supports and transports the loose roll 2 in the area from the center to the large diameter end. The small diameter end does not contact the loose roll 2. The close arrangement can prevent the loose roll 2 from getting stuck between the gaps in the roller track.

[0034] The air-cooled roller conveyor 4 includes an air-cooled frame 43, an air-cooled roller group 1 41 and an air-cooled roller group 2 42. The air-cooled roller group 1 41 and the air-cooled roller group 2 42 are rotatably installed in the air-cooled frame 43. The driving ends of the air-cooled roller group 1 41 and the air-cooled roller group 2 42 are respectively connected to a reduction motor 2 9.

[0035] The first air-cooled roller group 41 is composed of several first-alignment rollers 411, and the second air-cooled roller group 42 is composed of several second-alignment rollers 421. The first-alignment rollers 411 and the second-alignment rollers 421 are arranged alternately in parallel along the material conveying direction, and the radius of the first-alignment rollers 411 is distributed in the opposite direction to that of the second-alignment rollers 421 from large to small. In this embodiment, the first-alignment rollers 411 and the second-alignment rollers 421 have the same shape, but are arranged alternately in opposite directions. Therefore, only the shape of one of the alignment rollers is shown in the attached figure.

[0036] The two ends of the first conical roller 311 and the second conical roller 321 are rotatably connected to both sides of the first section roller frame 33. The two ends of the first correction roller 411 and the second correction roller 421 are rotatably connected to both sides of the air-cooled frame 43. The large-diameter ends of the first conical roller 311, the second conical roller 321, the first correction roller 411 and the second correction roller 421 are all connected to double-row sprockets 7. The double-row sprockets 7 between adjacent first conical roller 311, second conical roller 321, first correction roller 411 or second correction roller 421 are connected in series by chains 8. The last conical roller 311, second conical roller 321, first correction roller 411 or second correction roller 421 are respectively connected to universal couplings 5, which are connected to the first gear motor 6 or the second gear motor 9 through the universal couplings 5.

[0037] Both the first straightening roller 411 and the second straightening roller 421 include a flat roller section 44 and a conical section 45. The flat roller section 44 is fixedly connected to the small-diameter end of the conical section 45, and the diameter of the flat roller section 44 is smaller than the small-diameter end of the conical section 45. In this device, a gap is formed between two adjacent first straightening rollers 411 and second straightening roller 421 that is narrow in the middle and wide on both sides. This design is beneficial for increasing the air volume at the overlapping parts on both sides of the loose coil 2 when using a fan for cooling, reducing the temperature difference between the overlapping area and the non-overlapping area of ​​the loose coil 2, and improving the uniformity of the wire structure and properties.

[0038] The taper angles of the first tapered roller 311, the second tapered roller 321, and the tapered segment 45 are all 0.5-2°.

[0039] The gap between the first conical roller 311 and the second conical roller 321 is 5mm-7mm.

[0040] The length of the flat roller section 44 is half that of the conical section 45.

[0041] The gap between the conical section (45) of the first (411) and the second (421) and the adjacent flat section (44) is 50mm-100mm. This is beneficial for increasing the air volume at the overlapping parts on both sides of the loose coil 2 when using a fan for cooling, reducing the temperature difference between the overlapping area and the non-overlapping area of ​​the loose coil 2, and improving the uniformity of the wire structure and properties.

[0042] A method for correcting the web alignment of a high-speed wire unwinding device includes:

[0043] S1: The high-speed wire is spun into a coil by the spinning machine and falls onto the first section of the densely packed roller conveyor 3. As the first correction roller group 31 and the second correction roller group 32 rotate, the loose coil 2 is laid flat on the first correction roller group 31 and the second correction roller group 32 and conveyed backward.

[0044] S2: When the loose coil 2 slightly deviates to one side of the roller conveyor, the center of the loose coil 2 deviates from the center of the roller conveyor. Since the roller conveyor is tapered, there is a speed difference between the contact points between the two sides of the loose coil 2 and the roller conveyor of the two roller groups. Therefore, during the conveying process, the loose coil 2 will deviate to the side with lower speed, and the center of the loose coil 2 will shift towards the center of the roller conveyor. This is the self-correcting function of the tapered roller conveyor.

[0045] S3: When the loose roll 2 is severely misaligned, the speed of the geared motor 6 connected to one side of the first correction roller group 31 or the second correction roller group 32 is independently adjusted to increase or decrease, thereby increasing the speed difference and accelerating the correction. If the correction roller group 31 or the second correction roller group 32 is insufficient, the subsequent air-cooled roller group 41 or the second air-cooled roller group 42 will take over the correction until the loose roll 2 is centered.

[0046] S4: When the loose roll 2 deviates after entering the air-cooled roller conveyor 4, the deviation is corrected by adjusting the speed of the reduction motor 9 connected to the first air-cooled roller group 41 and the second air-cooled roller group 42. The correction principle is the same as S2 and S3.

[0047] The speed difference is adjusted through closed-loop control using the offset feedback from the existing intelligent visual recognition system to achieve dynamic correction. The intelligent visual recognition system adopts a mature hardware and software architecture, including a high-speed camera, a light source, and an image analysis and processing unit. The high-speed camera and light source are positioned at appropriate locations above the densely packed roller conveyor and the air-cooled roller conveyor to collect image information of the high-speed wire coil as it is transported on the roller conveyor, and transmit the images to the image analysis and processing unit. The image analysis and processing unit uses existing image processing algorithms and compares them with the preset ideal position to calculate the offset and offset direction of the coil.

[0048] Working principle:

[0049] like Figure 1-6 As shown in the figure, line segments ab and bc represent the linear velocities at different diameters of the roller body in the first section of the closely packed roller conveyor 3 or the air-cooled roller conveyor 4 that comes into contact with the loose coil 2. When the speeds of the two geared motors 6 or 9 in the same section of the roller conveyor are the same, the linear velocity at the center X of the roller conveyor is the lowest. Line segments de and d′e′ in the figure represent the loose coil 2 with slight and severe deviations, respectively.

[0050] When the loose coil 2 slightly deviates to the right side of the roller conveyor, the center Z of the loose coil 2 deviates from the center X of the roller conveyor. The linear velocity at the contact point e between the loose coil 2 and the roller conveyor is greater than the linear velocity at the contact point d between the loose coil 2 and the roller conveyor, resulting in a velocity difference ΔVde between the two points. Therefore, during the conveying process, the loose coil 2 will deviate to the side with lower speed, that is, to the left side of the roller conveyor, and the center Z of the loose coil 2 will shift towards the center X of the roller conveyor. This is the self-correcting function of the tapered roller conveyor.

[0051] When the loose coil 2 deviates significantly to the right side R of the roller conveyor, and the center Z′ of the loose coil 2 deviates significantly from the center X of the roller conveyor, the self-correcting ability of tapered roller 311 and tapered roller 321 or correction roller 411 and correction roller 421 is insufficient to completely correct the loose coil 2 to the center of the roller conveyor. In this case, the speed of the tapered roller 321 or correction roller 421 with its large diameter end on the left side of the roller conveyor should be appropriately reduced. Figure 6 As shown, a′b′ represents the linear velocity at different diameters of the reduced roller body, with a speed reduction of ΔVaa′. The linear velocity at the contact point e′ between the loose roll 2 and the roller conveyor will be significantly greater than that at the contact point d′, creating a larger speed difference ΔVd′e′ between the two points. Therefore, during the conveying process, the loose roll 2 will rapidly deflect to the side with lower speed, i.e., to the left side L of the roller conveyor. The center Z′ of the loose roll 2 will rapidly shift towards the center X of the roller conveyor. This is the strong correction function of the tapered roller conveyor. Depending on the site conditions, the speed of the tapered roller with its large diameter end on the right side of the roller conveyor can be appropriately increased, or the speed of the tapered roller with its large diameter end on the left side of the roller conveyor can be appropriately decreased while the speed of the tapered roller with its large diameter end on the right side of the roller conveyor can be increased simultaneously.

[0052] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A high-speed wire unwinding correction device, characterized in that: It includes the first section of densely packed roller conveyor (3) and the air-cooled roller conveyor (4); The first section of the densely packed roller conveyor (3) includes a first section roller conveyor frame (33), a first set of correction rollers (31) and a second set of correction rollers (32). The first set of correction rollers (31) and the second set of correction rollers (32) are rotatably installed in the first section roller conveyor frame (33). The drive ends of the first set of correction rollers (31) and the second set of correction rollers (32) are respectively connected to a first geared motor (6). The first correction roller group (31) is composed of several conical rollers (311), and the second correction roller group (32) is composed of several conical rollers (321). The conical rollers (311) and the conical rollers (321) are arranged alternately in parallel along the material conveying direction, and the radius of the conical rollers (311) is distributed in the opposite direction to that of the conical rollers (321) from large to small. The air-cooled roller conveyor (4) includes an air-cooled frame (43), an air-cooled roller group one (41), and an air-cooled roller group two (42). The air-cooled roller group one (41) and the air-cooled roller group two (42) are rotatably installed in the air-cooled frame (43). The drive ends of the air-cooled roller group one (41) and the air-cooled roller group two (42) are respectively connected to a reduction motor two (9). The first air-cooled roller group (41) is composed of several first-axis correction rollers (411), and the second air-cooled roller group (42) is composed of several second-axis correction rollers (421). The first-axis correction rollers (411) and the second-axis correction rollers (421) are arranged alternately in parallel along the material conveying direction, and the radius of the first-axis correction rollers (411) is distributed in the opposite direction to that of the second-axis correction rollers (421) from large to small.

2. The high-speed wire unwinding correction device according to claim 1, characterized in that: The two ends of the first conical roller (311) and the second conical roller (321) are rotatably connected to both sides of the first section roller frame (33). The two ends of the first straightening roller (411) and the second straightening roller (421) are rotatably connected to both sides of the air-cooled frame (43). The large-diameter ends of the first conical roller (311), the second conical roller (321), the first straightening roller (411), and the second straightening roller (421) are all connected to double-row sprockets (7). The adjacent first conical roller (311) 1) The double-row sprockets (7) between the second conical roller (321), the first correction roller (411), and the second correction roller (421) are connected in series by a chain (8), and the last conical roller (311), the second conical roller (321), the first correction roller (411), and the second correction roller (421) are respectively connected to a universal coupling (5), which is connected to the first geared motor (6) or the second geared motor (9) through the universal coupling (5).

3. The high-speed wire unwinding correction device according to claim 2, characterized in that: Both the first correction roller (411) and the second correction roller (421) include a flat roller section (44) and a conical section (45). The flat roller section (44) is fixedly connected to the small diameter end of the conical section (45), and the diameter of the flat roller section (44) is smaller than the diameter of the small end of the conical section (45).

4. The high-speed wire unwinding correction device according to claim 3, characterized in that: The taper angles of the first conical roller (311), the second conical roller (321), and the conical segment (45) are all 0.5-2°.

5. A high-speed wire unwinding correction device according to claim 4, characterized in that: The gap between the first conical roller (311) and the second conical roller (321) is 5mm-7mm.

6. A high-speed wire unwinding correction device according to claim 3, characterized in that: The length of the flat roller section (44) is half that of the conical section (45).

7. A high-speed wire unwinding correction device according to claim 3, characterized in that: The gap between the conical section (45) of the first (411) and the second (421) and the adjacent flat section (44) is 50mm-100mm.

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