Leveler exit guide
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG MINGHE STEEL PIPE CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-08-07
AI Technical Summary
[0004]为了弥补以上不足，本实用新型提供了矫直机出口导向装置，旨在改善现有技术中矫直机出口导向装置因采用敞开式结构、依赖夹送辊输送且无后台辊道传输，导致钢管输送偏移、输送不畅，进而引发生产效率低、钢管表面擦伤，以及钢管在导向区间甩动易甩出导槽并磕碰边缘的问题
1.本实用新型中，导向腔体以长方体空腔结构约束钢管路径，入口喇叭口扩大接入范围，内壁的尼龙涂层减少钢管与腔体的摩擦损伤；输送辊道采用MC尼龙辊体，兼具耐磨与减震性，通过转动带动钢管输送，避免刚性摩擦导致的擦伤；升降装置借助液压驱动单元与连杆传动组件，可根据钢管直径调节辊道高度，配合高度定位组件锁定位置，确保不同规格钢管均能贴合辊道表面输送，改善原有敞开式导向“输送偏移、送不出”的问题，实现从矫直工序到下道工序的平稳过渡，保障输送效率与钢管表面质量。
Smart Images
Figure CN224600373U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of straightening machine equipment technology, and in particular to a straightening machine outlet guide device. Background Technology
[0002] A straightening machine is an industrial device used to correct shape defects such as bending, twisting, and wavy shapes in metal materials (such as steel pipes, steel profiles, etc.) during rolling, heat treatment, and transportation. It is widely used in metallurgy, machinery manufacturing, pipeline engineering, and other fields, and is particularly crucial in the production process of seamless steel pipes. Its core function is to apply specific external forces to metal workpieces with shape deviations through extrusion, rolling, or stretching, so as to redistribute the internal stress of the workpiece and ultimately straighten it to a straight state that meets the process requirements, ensuring the accuracy and performance of subsequent processing (such as cutting, welding, and assembly). Common types of straightening machines include roller straightening machines (which use multiple sets of straightening rollers arranged vertically to continuously straighten the workpiece) and pressure straightening machines (which use hydraulic or mechanical pressure to straighten local bending parts of the workpiece at specific points).
[0003] In the existing technology, the steel pipes straightened by the straightening machine are conveyed to the back end and pass through the outlet guide device. Because the guide device is open and there is no roller conveyor in the back end, the conveying process is only carried out by the pinch rollers, which can easily cause problems such as conveying deviation and failure to convey. As a result, some steel pipes can only be conveyed out after being hit by the next steel pipe, which seriously affects the production efficiency of the straightening machine. The impact can easily cause surface scratches and quality problems. When the straightening operation reaches the open guide device, the swinging can easily throw the pipes out of the guide groove and cause edge damage. Therefore, the outlet guide device of the straightening machine is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a guide device for the outlet of a straightening machine, which aims to improve the problems in the existing straightening machine outlet guide device, which adopts an open structure, relies on pinch rollers for conveying and has no back-end roller conveyor, resulting in steel pipe conveying deviation and poor conveying, which in turn leads to low production efficiency, steel pipe surface abrasion, and the steel pipe easily being thrown out of the guide groove and hitting the edge when swinging in the guide zone.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A straightening machine outlet guide device includes a frame, a guide cavity for constraining the steel pipe conveying path is fixedly installed on the top left side of the frame, a guide mechanism for receiving and conveying the steel pipe is provided on the top of the frame along the steel pipe conveying direction, and a limiting mechanism for restricting the lateral swing of the steel pipe is provided inside the guide cavity. The guiding mechanism includes an L-shaped steel plate, the bottom of which is fixedly installed on the top right side of the frame. Multiple conveyor rollers are fixedly installed on the top of the frame, and the top of each conveyor roller protrudes from the top surface of the frame. The bottom of the guiding cavity and the bottom side of the L-shaped steel plate are provided with openings corresponding to each conveyor roller. The size of the openings is adapted to the cross-sectional size of the conveyor rollers. A lifting device for adjusting the height of the conveyor rollers is installed at the bottom of the frame corresponding to the position of the conveyor rollers. As a further description of the above technical solution: The lifting device consists of a hydraulic drive unit, a linkage transmission assembly, and a height positioning assembly. The output end of the hydraulic drive unit is hinged to one end of the linkage transmission assembly, and the other end of the linkage transmission assembly is fixedly connected to the roller support of the conveyor roller. The height positioning assembly is used to lock the height of the conveyor roller after adjustment. As a further description of the above technical solution: The guide cavity is a rectangular hollow structure with openings at both ends, and the inlet end of the guide cavity is flared, with the larger end of the flared end facing the input direction of the steel pipe. The guide cavity is made of Q235 low carbon steel, and its inner wall surface is coated with a wear-resistant nylon coating with a thickness of 0.1 to 0.3 mm. The rollers of the conveyor rollers are made of MC nylon. As a further description of the above technical solution: The limiting mechanism includes two symmetrically arranged fixed boxes, which are respectively fixedly connected to the front and rear ends of the guide cavity. A sliding plate is slidably connected to the inner wall of the fixed box. Multiple sliding rods are fixedly connected to the side of the sliding plate near the center of the guide cavity. A fixed plate is fixedly connected to the side of the sliding rod near the center of the guide cavity. A buffer assembly for buffering the impact of the steel pipe is provided inside the fixed plate. An adjustment assembly for adjusting the position of the fixed plate is provided on the top of the fixed box. As a further description of the above technical solution: The buffer assembly includes two sliding columns, the outer walls of which are slidably connected to the inner wall of the fixed plate. Springs are fitted on the outside of each of the two sliding columns. A support seat is fixedly connected to the side of each of the two sliding columns near the center of the guide cavity. A roller for reducing friction of the steel pipe is rotatably connected inside the support seat through a bearing. As a further description of the above technical solution: The adjacent sides of the plurality of springs are fixedly connected to the distant sides of the two support seats, the adjacent sides of the plurality of springs are fixedly connected to the adjacent sides of the two fixing plates, the side of the sliding column away from the center of the guide cavity is fixedly connected to a limiting plate, and the adjacent sides of the plurality of limiting plates are in contact with the distant sides of the two fixing plates. As a further description of the above technical solution: The adjustment assembly includes an adjustment plate, with the adjacent sides of two adjustment plates fixedly connected to the distant sides of two sliding plates. The outer walls of the adjustment plates are slidably connected to the inner walls of the fixed box, and the outer walls of a plurality of sliding rods are slidably connected to the inner walls of the fixed box. A boss is fixedly connected to the distant sides of the two fixed boxes, and a ball head bolt is threaded into the internal part of the boss. The bottom side of the ball head bolt contacts the top side of the adjustment plate.
[0006] This utility model has the following beneficial effects: 1. In this utility model, the guide cavity uses a cuboid cavity structure to constrain the path of the steel pipe, the inlet flared mouth expands the access range, and the nylon coating on the inner wall reduces frictional damage between the steel pipe and the cavity; the conveying rollers use MC nylon rollers, which have both wear resistance and shock absorption properties, and drive the steel pipe to be conveyed by rotation, avoiding scratches caused by rigid friction; the lifting device, with the help of a hydraulic drive unit and a linkage transmission assembly, can adjust the height of the roller according to the diameter of the steel pipe, and lock the position with the height positioning assembly to ensure that steel pipes of different specifications can be conveyed in close contact with the surface of the roller, improving the problem of "conveying deviation and failure to deliver" in the original open guide, realizing a smooth transition from the straightening process to the next process, and ensuring conveying efficiency and steel pipe surface quality.
[0007] 2. In this utility model, the fixed box provides an installation frame for the limiting mechanism, and the sliding plate and sliding rod constitute a position adjustment transmission path. Rotating the ball head bolt can push the adjusting plate, causing the fixed plate to move closer to or away from the steel pipe, adapting to the lateral limiting requirements of steel pipes of different diameters. In the buffer assembly, the roller rotates with the steel pipe, converting sliding friction into rolling friction, reducing wear. When the steel pipe impacts, the sliding column drives the spring to compress, buffering the impact force through elastic force, avoiding damage caused by rigid contact between the steel pipe and the fixed plate. The limiting plate prevents the sliding column from detaching, ensuring the stability of the buffer function. This structure effectively controls the swing amplitude of the steel pipe, eliminates the risk of bumps and collisions, and further improves product quality. Attached Figure Description
[0008] Figure 1 This is a perspective view of the outlet guide device of the straightening machine proposed in this utility model; Figure 2 This is a schematic diagram of the guide cavity of the outlet guide device of the straightening machine proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the fixing box of the outlet guide device of the straightening machine proposed in this utility model.
[0009] Legend: 1. Frame; 2. Guide cavity; 3. L-shaped steel plate; 4. Conveyor roller; 5. Lifting device; 6. Fixing box; 7. Sliding plate; 8. Sliding rod; 9. Fixing plate; 10. Sliding column; 11. Support seat; 12. Roller; 13. Spring; 14. Limiting plate; 15. Adjusting plate; 16. Ball head bolt. Detailed Implementation
[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0011] Example 1
[0012] Reference Figure 1 The straightening machine outlet guide device includes a frame 1. The frame 1 serves as the basic load-bearing structure of the entire device and is welded from high-strength steel. The bottom is pre-drilled with anchor bolt holes for fixing to the ground, ensuring that the device operates without displacement or vibration. A guide cavity 2 for constraining the steel pipe conveying path is fixedly installed on the top left side of the frame 1. A guide mechanism for receiving and conveying the steel pipe is set on the top of the frame 1 along the steel pipe conveying direction. The guide cavity 2 is equipped with a limiting mechanism for restricting the lateral swing of the steel pipe. The guide cavity 2 is a rectangular cavity structure with open ends. The inlet end of the guide cavity 2 is flared, with the larger end of the flared end facing the steel pipe input direction, which can expand the steel pipe access range and guide the steel pipe to accurately enter the cavity. The guide cavity 2 is made of Q235 low carbon steel, and its inner wall surface is coated with a wear-resistant nylon coating with a thickness of 0.1 to 0.3 mm to reduce friction damage to the steel pipe. The guiding mechanism includes an L-shaped steel plate 3, the bottom of which is fixedly installed on the top right side of the frame 1 to laterally limit the steel pipe conveyed to the right side and prevent the end of the steel pipe from deviating. Multiple conveying rollers 4 are fixedly installed on the top of the frame 1, evenly distributed along the conveying direction of the steel pipe. The rollers of the conveying rollers 4 are made of MC nylon, which combines wear resistance and shock absorption to prevent scratches on the surface of the steel pipe. The top of the conveying rollers 4 protrudes from the top surface of the frame 1. The bottom of the guide cavity 2 and the bottom side of the L-shaped steel plate 3 are each provided with an opening corresponding to one of the conveying rollers 4. The size of the opening matches the cross-sectional size of the conveying rollers 4. A lifting device 5 for adjusting the height of the conveying rollers 4 is installed at the bottom of the frame 1 corresponding to the position of the conveying rollers 4. The lifting device 5 consists of a hydraulic drive unit, a linkage transmission assembly, and a height positioning assembly. The output end of the hydraulic drive unit is hinged to one end of the linkage transmission assembly, and the other end of the linkage transmission assembly is fixedly connected to the roller support of the conveyor roller 4. The height positioning assembly is used to lock the adjusted height of the conveyor roller 4. The hydraulic drive unit provides stable power, and the linkage transmission assembly converts the hydraulic power into linear motion, driving the roller support of the conveyor roller 4 to rise and fall. The height positioning assembly can lock the adjusted height to prevent the roller from shifting during the conveying process. Through the height adjustable feature, the problem of adapting to the conveying of steel pipes of different diameters is solved, ensuring the stability of the conveying.
[0013] Example 2
[0014] Reference Figure 1 , Figure 2 and Figure 3 The limiting mechanism includes two symmetrically arranged fixed boxes 6, which are fixedly connected to the front and rear ends of the guide cavity 2, respectively. A sliding plate 7 is slidably connected to the inner wall of the fixed box 6. Multiple sliding rods 8 are fixedly connected to the side of the sliding plate 7 closest to the center of the guide cavity 2. The outer walls of the multiple sliding rods 8 are slidably connected to the inner wall of the fixed box 6. The fixed box 6 provides installation and sliding space for the internal sliding plate 7 and sliding rods 8. The sliding plate 7 is a key component for force transmission. A fixed plate 9 is fixedly connected to the side of the sliding rod 8 closest to the center of the guide cavity 2. A buffer assembly for buffering the impact of the steel pipe is installed inside the fixed plate 9. Driven by the sliding rod 8, the fixed plate 9 can move closer to or further away from the steel pipe, leaving a suitable gap with the outer wall of the steel pipe. This achieves lateral limiting and provides an installation base for the buffer assembly, preventing the steel pipe from directly impacting the cavity components. An adjustment assembly for adjusting the position of the fixed plate 9 is provided on the top of the fixed box 6. The buffer assembly includes two sliding columns 10, the outer walls of which are slidably connected to the inner wall of the fixed plate 9. Springs 13 are fitted around the outside of each sliding column 10. A support seat 11 is fixedly connected to one side of each sliding column 10 near the center of the guide cavity 2. The adjacent sides of multiple springs 13 are fixedly connected to the distant sides of the two support seats 11. The adjacent sides of multiple springs 13 are fixedly connected to the adjacent sides of the two fixed plates 9. A roller 12 for reducing steel pipe friction is rotatably connected inside the support seat 11 via bearings. The support seat 11 supports the roller 12, ensuring stable rotation of the roller 12. The roller 12 is made of nylon material, with a smooth surface and a certain degree of elasticity. When the steel pipe moves along the conveying direction, the roller 12 can rotate synchronously with the steel pipe, converting sliding friction into rolling friction, significantly reducing wear on the steel pipe surface. When the steel pipe impacts the roller 12, the sliding column 10 can slide along the mounting hole, driving the spring 13 to compress and convert the impact force into the elastic force of the spring 13, thus achieving a buffering effect. The side of the sliding column 10 away from the center of the guide cavity 2 is fixedly connected to a limiting plate 14. The adjacent sides of multiple limiting plates 14 are in contact with the distant sides of two fixed plates 9. The limiting plates 14 prevent the sliding column 10 from detaching from the fixed plates 9, thus ensuring the integrity of the buffer assembly. The adjustment assembly includes adjustment plates 15. The adjacent sides of two adjustment plates 15 are fixedly connected to the distant sides of two sliding plates 7. The outer wall of the adjustment plate 15 is slidably connected to the inner wall of the fixed box 6. When it is necessary to adapt to steel pipes of different diameters, the adjustment plate 15 is pulled or pushed to drive the sliding plate 7 to slide on the inner wall of the fixed box 6. Then, the fixed plate 9 is pushed closer to or further away from the center of the guide cavity 2 by the sliding rod 8 until a suitable gap is reserved between the fixed plate 9 and the outer wall of the steel pipe. The distant sides of the two fixed boxes 6 are fixedly connected to bosses. The internal threads of the bosses are connected to ball head bolts 16. The bottom side of the ball head bolts 16 contacts the top side of the adjustment plate 15. Then, the ball head bolts 16 in the bosses are rotated, and the bottom of the ball head bolts 16 contacts and presses the adjustment plate 15, so as to realize the lateral limiting adaptation of steel pipes of different specifications.
[0015] Working Principle: When the straightened steel pipe enters the device, it is initially constrained by the guide cavity 2 on the top left of the frame 1, which accurately guides the steel pipe into the preset conveying path and avoids collisions with device components due to positional deviation during the initial conveying stage. Simultaneously, the wear-resistant nylon coating on the inner wall of the guide cavity 2 reduces direct friction between the steel pipe and the inner wall of the cavity during conveying, lowering the risk of surface scratches. After entering the guide cavity 2, the steel pipe rests on the conveying rollers 4 evenly distributed along the conveying direction at the top of the frame 1. The rollers of the conveying rollers 4 are made of MC nylon, which stably supports the steel pipe and drives it to the right through their rotation. For steel pipes of different diameters, the lifting device 5 at the bottom of the frame 1 can adjust the height of the conveying rollers 4. Specifically, the hydraulic drive unit outputs power, which drives the roller shaft support of the conveying rollers 4 to move up and down via the linkage transmission assembly, ensuring that the steel pipe is always in contact with the roller surface during conveying, avoiding conveying deviation due to unsuitable height, and ultimately achieving a smooth transition of the steel pipe from the straightening process to the next process. During the conveying of the steel pipe along the guide cavity 2, the buffer assembly inside the fixed plate 9 plays a role: when the steel pipe impacts the roller 12, the roller 12 pushes the sliding column 10 to slide on the inner wall of the fixed plate 9 through the support seat 11. The spring 13 sleeved on the outer wall of the sliding column 10 is compressed and generates a reverse elastic force, which can buffer the lateral impact force of the steel pipe and avoid damage caused by the steel pipe directly contacting the fixed plate 9 rigidly. At the same time, the roller 12 can rotate synchronously with the conveying of the steel pipe, converting the sliding friction between the steel pipe and the roller 12 into rolling friction, further reducing the wear on the surface of the steel pipe. When it is necessary to adapt to steel pipes of different diameters, the adjusting plate 15 is pulled or pushed to drive the sliding plate 7 to slide on the inner wall of the fixed box 6, and then the fixed plate 9 is pushed closer to or away from the center of the guide cavity 2 through the sliding rod 8 until the fixed plate 9 leaves a suitable gap with the outer wall of the steel pipe. Then the ball head bolt 16 in the boss is rotated, and the bottom of the ball head bolt 16 contacts and presses the adjusting plate 15, realizing the lateral limiting adaptation of steel pipes of different specifications.
[0016] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A guide device for the outlet of a straightening machine, comprising a frame (1), characterized in that: A guide cavity (2) for constraining the steel pipe conveying path is fixedly installed on the top left side of the frame (1). A guide mechanism for receiving and conveying steel pipe is provided on the top of the frame (1) along the steel pipe conveying direction. A limiting mechanism for restricting the lateral swing of the steel pipe is provided inside the guide cavity (2). The guiding mechanism includes an L-shaped steel plate (3), the bottom of which is fixedly installed on the top right side of the frame (1). Multiple conveying rollers (4) are fixedly installed on the top of the frame (1), and the top of the conveying rollers (4) protrudes from the top surface of the frame (1). The bottom of the guide cavity (2) and the bottom side of the L-shaped steel plate (3) are provided with openings corresponding to the conveying rollers (4). The size of the opening is adapted to the cross-sectional size of the conveying rollers (4). A lifting device (5) for adjusting the height of the conveying rollers (4) is installed at the bottom of the frame (1) corresponding to the position of the conveying rollers (4).
2. The outlet guide device of the straightening machine according to claim 1, characterized in that: The lifting device (5) consists of a hydraulic drive unit, a linkage transmission assembly and a height positioning assembly. The output end of the hydraulic drive unit is hinged to one end of the linkage transmission assembly, and the other end of the linkage transmission assembly is fixedly connected to the roller support of the conveying roller (4). The height positioning assembly is used to lock the height of the conveying roller (4) after adjustment.
3. The outlet guide device of the straightening machine according to claim 1, characterized in that: The guide cavity (2) is a rectangular cavity structure with openings at both ends. The inlet end of the guide cavity (2) is flared, with the larger end of the flared end facing the input direction of the steel pipe. The guide cavity (2) is made of Q235 low carbon steel, and its inner wall surface is coated with a wear-resistant nylon coating with a thickness of 0.1 to 0.3 mm. The rollers of the conveying roller (4) are made of MC nylon.
4. The outlet guide device of the straightening machine according to claim 1, characterized in that: The limiting mechanism includes two symmetrically arranged fixed boxes (6), which are respectively fixedly connected to the front and rear ends of the guide cavity (2). A sliding plate (7) is slidably connected to the inner wall of the fixed box (6). A plurality of sliding rods (8) are fixedly connected to the side of the sliding plate (7) near the center of the guide cavity (2). A fixed plate (9) is fixedly connected to the side of the sliding rod (8) near the center of the guide cavity (2). A buffer assembly for buffering the impact of the steel pipe is provided inside the fixed plate (9). An adjustment assembly for adjusting the position of the fixed plate (9) is provided on the top of the fixed box (6).
5. The outlet guide device of the straightening machine according to claim 4, characterized in that: The buffer assembly includes two sliding columns (10), the outer walls of the two sliding columns (10) are slidably connected to the inner wall of the fixed plate (9), and springs (13) are sleeved on the outside of the two sliding columns (10). A support seat (11) is fixedly connected to the side of the two sliding columns (10) near the center of the guide cavity (2). A roller (12) for reducing friction of the steel pipe is rotatably connected inside the support seat (11) through a bearing.
6. The outlet guide device of the straightening machine according to claim 5, characterized in that: The adjacent sides of the plurality of springs (13) are fixedly connected to the opposite sides of the two support seats (11), the adjacent sides of the plurality of springs (13) are fixedly connected to the adjacent sides of the two fixing plates (9), the side of the sliding column (10) away from the center of the guide cavity (2) is fixedly connected to a limiting plate (14), and the adjacent sides of the plurality of limiting plates (14) are in contact with the opposite sides of the two fixing plates (9).
7. The outlet guide device of the straightening machine according to claim 4, characterized in that: The adjustment assembly includes an adjustment plate (15), with the adjacent sides of two adjustment plates (15) fixedly connected to the distant sides of two sliding plates (7). The outer wall of the adjustment plate (15) is slidably connected to the inner wall of the fixed box (6), and the outer walls of a plurality of sliding rods (8) are slidably connected to the inner wall of the fixed box (6). A boss is fixedly connected to the distant sides of the two fixed boxes (6), and a ball head bolt (16) is threaded into the inside of the boss. The bottom side of the ball head bolt (16) is in contact with the top side of the adjustment plate (15).