Rotary steel separating guide device for high speed bar
By designing a rotary steel guide device, the problem of frequent replacement of guide components in high-speed bar rolling was solved, and the automatic adjustment of the guide roll spacing was realized, improving production efficiency and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUZHOU JINQUAN METALLURGICAL MASCH EQUIP CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-09
Smart Images
Figure CN224333100U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bar rolling technology, and in particular to a rotary steel-separating guide device for high-speed bars. Background Technology
[0002] Guide devices are crucial auxiliary equipment in steel rolling production (especially bar and wire rod rolling). Their core function is to ensure that the rolled piece accurately enters and exits the mill pass along a predetermined path through precise guidance, stable support, and necessary correction during the rolling process, avoiding deviation, bending, or collision with the equipment.
[0003] A search revealed Chinese Patent Publication No. CN219464357U, which discloses a rolling guide device for high-speed bar rolling. This utility model reduces the frequency of guide replacement and lowers the failure rate by incorporating clamping blocks, pre-tightening grooves at the clamping plates, keyways at the lower end of the guide box, and spring-loaded covers for fixation. It can be used for imported guides in all rolling stands during high-speed bar finishing. In use, only the guide plate, guide tip, and guide roller need to be replaced according to actual needs. It is highly versatile, and after being put into production, it has resulted in a low rolling failure rate and an increase of over 20% in the production of small-diameter threaded steel.
[0004] When using this device, the guide plate, guide tip, and guide roller need to be replaced according to the actual bar size in order to effectively guide the bar. However, in actual production, the bar model often varies from batch to batch, which means that the above components must be replaced every time a batch is switched. This is not only cumbersome, but also time-consuming to adjust the guide angle after replacement, which seriously affects the bar production efficiency. Therefore, a high-speed bar rotary steel-separating guide device is proposed to solve the above problems. Summary of the Invention
[0005] To overcome the above shortcomings, this utility model provides a high-speed rotating steel guide device for bar stock, which aims to improve the problem mentioned in the prior art that "when guiding different batches of bar stock, it is necessary to replace the corresponding parts, which is very troublesome and affects production efficiency".
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-speed bar rotating steel guide device, including a guide platform, a support arm hinged to the side wall of the guide platform, a guide roller rotatably connected to the inner wall of the support arm, an adjustment mechanism inside the guide platform, and a positioning mechanism on the outer wall of the guide platform.
[0007] The adjustment mechanism includes a push block, which is slidably connected to the inner wall of the guide platform. A connecting rod is hinged to the bottom of the push block. A threaded rod is rotatably connected to the inner wall of the guide platform. A worm gear is fixedly connected to the outer wall of the threaded rod. A worm is rotatably connected through the inner wall of the guide platform. A handwheel is fixedly connected to the top of the worm.
[0008] As a further description of the above technical solution:
[0009] The positioning mechanism includes a crossbar that is slidably connected to the outer wall of the guide platform, and a pointer is fixedly connected to the bottom of the crossbar.
[0010] As a further description of the above technical solution:
[0011] A scale plate is fixedly connected to the outer wall of the guide platform, and the pointer is located above the scale plate.
[0012] As a further description of the above technical solution:
[0013] A sliding rod is fixedly connected to the bottom of the guide roller, and the sliding rod and the guide roller are coaxial.
[0014] As a further description of the above technical solution:
[0015] The crossbar has a through groove for guiding the slide bar, and the outer wall of the slide bar is attached to the inner wall of the through groove.
[0016] As a further description of the above technical solution:
[0017] The threaded rod is threadedly connected to the push block, and the worm gear meshes with the worm wheel.
[0018] As a further description of the above technical solution:
[0019] The support arm is provided in two sets, and the two sets of support arms are mirror images of the left and right sides of the guide platform with the push block as the central axis.
[0020] As a further description of the above technical solution:
[0021] The end of the connecting rod furthest from the push block is hinged to the top of the support arm.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the distance between the two sets of guide rollers can be freely adjusted through the design of the adjustment mechanism. This allows the guide rollers to be adjusted to the required spacing according to different batches and models of plates, so that the guide rollers can provide stable and effective guidance and correction for the bars. There is no need to replace the guide accessories according to the bar model, making it more convenient to use and greatly improving the bar production efficiency.
[0024] 2. In this utility model, the distance between the two sets of guide rollers can be accurately determined through the design of the positioning mechanism, so as to make precise and quick adjustment of the distance between the two sets of guide rollers according to the size of the bar, thereby improving the convenience of guide roller adjustment. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the front structure of the guide platform of this utility model;
[0027] Figure 3 This is a cross-sectional structural diagram of the guide platform of this utility model;
[0028] Figure 4 This utility model Figure 3 A magnified structural diagram at point A.
[0029] Legend:
[0030] 1. Guide platform; 2. Support arm; 3. Guide roller; 4. Adjustment mechanism; 41. Push block; 42. Connecting rod; 43. Threaded rod; 44. Worm gear; 45. Worm; 46. Handwheel; 5. Positioning mechanism; 51. Crossbar; 52. Pointer; 53. Scale plate; 54. Slide rod; 55. Through groove. Detailed Implementation
[0031] 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.
[0032] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a high-speed bar rotating steel guide device, including a guide platform 1. The side wall of the guide platform 1 is hinged with a support arm 2. Two sets of support arms 2 are provided, and the two sets of support arms 2 are mirror images of the left and right sides of the guide platform 1 with a push block 41 as the central axis. The inner wall of the support arm 2 is rotatably connected to a guide roller 3. The two sets of support arms 2, in conjunction with the guide roller 3, can provide guidance and correction for the bar, thereby ensuring that the bar enters the mill hole along a predetermined path. An adjustment mechanism 4 is provided inside the guide platform 1, and a positioning mechanism 5 is provided on the outer wall of the guide platform 1.
[0033] Reference Figure 2 - Figure 4The adjusting mechanism 4 includes a push block 41, which is slidably connected to the inner wall of the guide platform 1. A connecting rod 42 is hinged to the bottom of the push block 41, and the end of the connecting rod 42 away from the push block 41 is hinged to the top of the support arm 2. When the push block 41 slides, it can push the support arm 2 in conjunction with the connecting rod 42, so that the two sets of support arms 2 rotate synchronously in opposite directions. A threaded rod 43 is rotatably connected to the inner wall of the guide platform 1. The threaded rod 43 is threadedly connected to the push block 41. When the threaded rod 43 rotates, it will drive the push block 41 that is threadedly connected to it. 1. The threaded rod 43 slides on the inner wall of the guide platform 1. A worm gear 44 is fixedly connected to the outer wall of the threaded rod 43. When the worm gear 44 rotates, it will drive the threaded rod 43 to rotate synchronously on the inner wall of the guide platform 1. A worm 45 is rotatably connected through the inner wall of the guide platform 1. The worm 45 meshes with the worm gear 44. When the worm 45 rotates, it will drive the worm gear 44 to rotate. A handwheel 46 is fixedly connected to the top of the worm 45. By rotating the handwheel 46, the worm 45 can be driven to rotate on the inner wall of the guide platform 1.
[0034] Reference Figure 2 - Figure 3 The positioning mechanism 5 includes a crossbar 51, which is slidably connected to the outer wall of the guide platform 1. A pointer 52 is fixedly connected to the bottom of the crossbar 51, and a scale plate 53 is fixedly connected to the outer wall of the guide platform 1. The pointer 52 is located above the scale plate 53. When the crossbar 51 slides, it drives the pointer 52 to move synchronously. While the pointer 52 is moving, the distance of movement of the pointer 52 can be observed using the scale plate 53, thereby determining the distance between the sliding rods 54 at the bottom of the two sets of guide rollers 3. The bottom of the guide roller 3 is fixedly connected to the sliding rod 54, and the sliding rod 54 is connected to the guide roller 3. The guard rollers 3 are in a coaxial state. Since the slide rod 54 and the guard rollers 3 are in a coaxial state, the distance between the two sets of guard rollers 3 can be known by the pointer 52 and the scale plate 53. The crossbar 51 has a through groove 55 to guide the slide rod 54. The outer wall of the slide rod 54 is attached to the inner wall of the through groove 55. When the support arm 2 rotates on the outer wall of the guard platform 1, it will drive the slide rod 54 to move against the inner wall of the through groove 55. At this time, under the guidance of the through groove 55, the slide rod 54 will push the crossbar 51, so that the crossbar 51 slides on the outer wall of the guard platform 1.
[0035] Working principle: The worm gear 45 is rotated by the handwheel 46, which drives the worm wheel 44 meshing with it to rotate. As the worm wheel 44 rotates, it drives the threaded rod 43 to rotate synchronously on the inner wall of the guide platform 1. As the threaded rod 43 rotates, it drives the push block 41 threadedly connected to it to slide on the inner wall of the guide platform 1. While the push block 41 slides, the connecting rod 42 can push the support arm 2, so that the two sets of support arms 2 rotate synchronously in opposite directions. While the two sets of support arms 2 rotate synchronously, the distance between the two sets of guide rollers 3 can be adjusted, so that the guide rollers 3 can be adjusted to the appropriate position according to different types of bars, so that the guide rollers 3 can guide bars of different sizes.
[0036] As the support arm 2 rotates on the outer wall of the guide platform 1, it drives the slide rod 54 to move against the inner wall of the through groove 55. Under the guidance of the through groove 55, the slide rod 54 pushes the crossbar 51, causing the crossbar 51 to slide on the outer wall of the guide platform 1. As the crossbar 51 slides, it drives the pointer 52 to move synchronously. As the pointer 52 moves, the distance of the pointer 52 can be observed using the scale plate 53, thus revealing the distance between the slide rods 54 at the bottom of the two sets of guide rollers 3. Since the slide rod 54 and the guide roller 3 are coaxial, the distance between the two sets of guide rollers 3 can be determined, allowing for precise adjustment of the distance between the two sets of guide rollers 3 according to the size of the bar, thereby improving the convenience of adjusting the guide rollers 3.
[0037] 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 high-speed bar stock rotary guide device, comprising a guide platform (1), characterized in that: The side wall of the guide platform (1) is hinged with a support arm (2), the inner wall of the support arm (2) is rotatably connected with a guide roller (3), the inside of the guide platform (1) is provided with an adjustment mechanism (4), and the outer wall of the guide platform (1) is provided with a positioning mechanism (5). The adjustment mechanism (4) includes a push block (41), which is slidably connected to the inner wall of the guide platform (1). A connecting rod (42) is hinged to the bottom of the push block (41). A threaded rod (43) is rotatably connected to the inner wall of the guide platform (1). A worm gear (44) is fixedly connected to the outer wall of the threaded rod (43). A worm (45) is rotatably connected through the inner wall of the guide platform (1). A handwheel (46) is fixedly connected to the top of the worm (45).
2. The high-speed bar stock rotary guide device according to claim 1, characterized in that: The positioning mechanism (5) includes a crossbar (51), which is slidably connected to the outer wall of the guide platform (1), and a pointer (52) is fixedly connected to the bottom of the crossbar (51).
3. The high-speed bar stock rotary guide device according to claim 2, characterized in that: The outer wall of the guide platform (1) is fixedly connected to a scale plate (53), and the pointer (52) is located above the scale plate (53).
4. The high-speed bar stock rotary guide device according to claim 1, characterized in that: The bottom of the guide roller (3) is fixedly connected to a slide rod (54), and the slide rod (54) and the guide roller (3) are in a coaxial state.
5. A high-speed bar stock rotary guide device according to claim 2, characterized in that: The crossbar (51) has a through groove (55) for guiding the slide bar (54), and the outer wall of the slide bar (54) is attached to the inner wall of the through groove (55).
6. The high-speed bar stock rotary guide device according to claim 1, characterized in that: The threaded rod (43) is threadedly connected to the push block (41), and the worm (45) meshes with the worm wheel (44).
7. A high-speed bar stock rotary guide device according to claim 1, characterized in that: The support arm (2) is provided in two sets, and the two sets of support arms (2) are mirror images of the guide platform (1) with the push block (41) as the central axis.
8. A high-speed bar stock rotary guide device according to claim 1, characterized in that: The end of the connecting rod (42) away from the push block (41) is hinged to the top of the support arm (2).