Bar rolling mill inlet guide and guard manufactured by adopting structural parts
By using structural components to make the inlet guide of the bar mill, the problem of insufficient bending strength of the cast support plate was solved, and stable rolling of high-strength alloy steel and environmentally friendly and energy-saving production were realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2026-03-03
AI Technical Summary
The cast material support plate of the inlet guide of the existing bar mill has insufficient bending strength when rolling stainless steel and high-strength alloy steel, resulting in unstable rolled parts and unqualified product dimensions.
The bar mill inlet guide, made of structural components, forms a combined structure with higher bending strength by welding upper and lower support arms, frame box, guide rollers and other parts, and is reinforced with the mill guide beam by guide fixing device.
It improves the bending strength of the guide, meets the requirements of rolled stainless steel and high-strength alloy steel, reduces production costs and environmental pollution, and achieves product dimensional stability and energy-saving and environmental protection effects.
Smart Images
Figure CN223960323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel rolling in the metallurgical industry, and in particular to a special tool used for guiding rolled parts during the rolling process of a steel rolling mill. Background Technology
[0002] To ensure the production of qualified products during the bar rolling process, the inlet guide is an essential guarantee. Most existing bar rolling mill inlet guides use cast iron support plates as support arms (see...). Figure 2 The support arm plate is connected to the support arm shaft at both ends to form a three-point force distribution (see...). Figure 1 In actual production and use, the bending strength of this type of guide, which uses a support plate as the support arm, cannot meet the requirements for rolling stainless steel and high-strength alloy steel. This can easily lead to instability of the rolled parts during the rolling process, resulting in unqualified product cross-sectional dimensions. Summary of the Invention
[0003] This utility model provides a bar mill inlet guide made of structural components, which adopts structural components and a new combination method.
[0004] The main structural components of the bar mill inlet guide include: upper support arm, lower support arm, frame box, support arm shaft, guide roller, guide fixing device, and guide roller cooling water pipe.
[0005] The upper support arm is formed by welding two upper support arm plates 1 to an upper support arm connecting plate 2, an upper guide plate 3 is welded to the two upper support arm plates 1 and the upper support arm connecting plate 2, and an inclined guide plate 8 is welded to the upper guide plate 3 (see...). Figure 3 The flared end plate 13 is welded to the two upper support arm plates 1 and the upper support arm connecting plate 2 (see...). Figure 4 The front baffle 25 is welded to the two upper control arm plates 1 (see...). Figure 5 );
[0006] The lower support arm is formed by welding two lower support arm plates 4 to a lower support arm connecting plate 5, and the lower guide plate 6 is welded to the two lower support arm plates 4 and the lower support arm connecting plate 5 (see...). Figure 3 The side guide plate 7 is welded to the two lower support arm plates 4, the lower support arm connecting plate 5, the lower guide plate 6, and the guide plate stop block 21 (see...). Figure 3 , Figure 4 The inclined guide plate 8 is welded to the lower support arm connecting plate 5 and the side guide plate 7 (see...). Figure 3 The flared end plate 13 and the side flared end plate 22 are welded to the two lower control arm plates 4 and the lower control arm connecting plate 5, and the front baffle 25 is welded to the two lower control arm plates 4 (see...). Figure 5 );
[0007] The frame box is formed by welding frame side plates 9 and frame connecting plates 10, and base plate 11 is welded to frame side plates 9. (See...) Figure 3 );
[0008] The support arm shaft 18 connects and fixes the upper support arm, lower support arm, and frame box body (see...). Figure 4 );
[0009] The guide roller 19 is connected to the support arm via the guide roller shaft 20 (see...). Figure 4 );
[0010] The guide fixing device 12 is welded to the frame box (see...). Figure 3 The inlet guide is reinforced by the guide fixing device 12 and the mill guide beam;
[0011] The guide roller cooling water pipe 24 is vertically installed on the frame connecting plate 10, close to the guide roller 19 (see...). Figure 4 ).
[0012] The main advantages of this utility model.
[0013] 1. Increase the bending strength of the support arm plate. By changing the cast support arm plate to a structural support arm plate, the bending strength of the support arm plate is increased structurally, meeting the requirements for use with rolled stainless steel and high-strength alloy steel.
[0014] 2. Reduce manufacturing difficulty and production costs. Using structural components instead of castings not only saves on casting processes and time, but also reduces production and raw material costs.
[0015] 3. Achieve energy conservation and environmental protection. By using structural components instead of castings, the smelting process is eliminated, which not only saves energy but also solves the environmental pollution problem during the manufacturing process. Attached Figure Description
[0016] Figure 1 Original guide box schematic diagram;
[0017] Figure 2 Schematic diagram of the original guide casting support arms (pair);
[0018] Figure 3 Left view of the entrance guard;
[0019] Figure 4 Top view of the entrance guard;
[0020] Figure 5 Main view of the entrance guide;
[0021] Figure 6 3D diagram of the entrance guide.
[0022] Icon description:
[0023] serial number name serial number name 1 upper control arm plate 14 outrigger support bolts 2 upper arm connecting plate 15 Adjusting spring 3 upper guide plate 16 Adjusting bolt 4 Lower control arm plate 17 Rolling centerline adjusting bolts 5 Lower arm connecting plate 18 outrigger shaft 6 Lower guide plate 19 Guide rollers 7 Side guide plate 20 Guide roller shaft 8 Angled guide plate 21 Guide plate block 9 Frame side panels 22 Side flare plate 10 Frame connection plate 23 Guide roller cooling water pipe hole 11 base plate 24 Guide roller cooling water pipe 12 Guardian fixing device 25 front bezel 13 horn mouth plate Detailed Implementation
[0024] 1. The main structural components of this utility model include: upper support arm, lower support arm, frame box, support arm shaft, guide roller, guide fixing device, and guide roller cooling water pipe.
[0025] The upper arm is formed by welding two upper arm plates 1 to the upper arm connecting plate 2; the upper guide plate 3 is welded to the two upper arm plates 1 and the upper arm connecting plate 2; and the inclined guide plate 8 is welded to the upper guide plate 3 (see...). Figure 3 The flared end plate 13 is welded to the two upper support arm plates 1 and the upper support arm connecting plate 2 (see...). Figure 4 The front baffle 25 is welded to the two upper control arm plates 1 (see...). Figure 5 );
[0026] The lower support arm is formed by welding two lower support arm plates 4 to the lower support arm connecting plate 5, and the lower guide plate 6 is welded to the two lower support arm plates 4 and the lower support arm connecting plate 5 (see...). Figure 3 The side guide plate 7 is welded to the two lower support arm plates 4, the lower support arm connecting plate 5, the lower guide plate 6, and the guide plate stop block 21 (see...). Figure 3 , Figure 4 The inclined guide plate 8 is welded to the lower support arm connecting plate 5 and the side guide plate 7 (see...). Figure 3 The flared end plate 13 and the side flared end plate 22 are welded to the two lower control arm plates 4 and the lower control arm connecting plate 5, and the front baffle 25 is welded to the two lower control arm plates 4 (see...). Figure 5 );
[0027] The frame box is formed by welding the frame side plates 9 and the frame connecting plate 10 together, and the base plate 11 is welded to the frame side plates 9. (See...) Figure 3 );
[0028] Support arm shaft 18 connects and secures the upper and lower support arms to the frame box (see...). Figure 4 );
[0029] Guide roller 19 is connected to the support arm via guide roller shaft 20. When the workpiece enters the guide, it is clamped by guide roller 19 and enters the die (see...). Figure 4 );
[0030] The guide fixing device 12 is welded to the frame box (see...). Figure 3 The entrance guide is reinforced by the guide fixing device 12 and the mill guide beam.
[0031] The guide roller cooling water pipe 24 is welded to the frame box (see...) Figure 4 , Figure 5 ).
[0032] 2. Assembly and installation of entrance guide components
[0033] (1) Guide roller installation
[0034] The welded upper and lower support arms are connected via guide roller shaft 19 and guide roller 20 (see...). Figure 4 When the workpiece enters the guide, it is held by the guide rollers and enters the die.
[0035] (2) Installation of upper and lower support arms and frame box
[0036] Connect the installed upper and lower support arms to the welded frame box via support arm shaft 18 (see...). Figure 4 ).
[0037] (3) Connection between upper and lower support arms
[0038] Connect the installed upper and lower support arms using adjusting bolts 16 and adjusting springs 15 (see...). Figure 4 ).
[0039] (4) Installation of cooling water pipes for guide rollers
[0040] The guide roller cooling water pipe 24 is welded to the frame box body through the guide roller cooling water pipe hole 23 (see...) Figure 4 , Figure 5 Cooling water cools the guide roller 19 through the guide roller cooling water pipe 24.
[0041] 3. The process of using entrance guards
[0042] (1) Correctly import the rolled piece
[0043] The guide is installed on the mill guide beam via the guide base 11, and then the guide fixing device 12 is reinforced to the mill guide beam. After the workpiece enters the guide, it passes through the guide plate and enters the guide roller 19, and is then clamped by the guide roller into the die (see figure).
[0044] (2) Adjusting the spacing between guide rollers
[0045] The upper and lower support arms, connected by adjusting bolt 16 and adjusting spring 15, allow for free adjustment of the distance between the two guide rollers according to the rolling specifications (see...). Figure 4 ).
[0046] (3) Adjusting the guide roller spacing using the support bolts of the outrigger
[0047] After the distance between the two guide rollers is determined, the support bolts 14 are used to lock and fix the upper and lower support arms to the frame box body with nuts. The support arm shaft 18 and the guide roller 19 form a three-point force-bearing method (see...). Figure 4 The spacing between the guide rollers is finely adjusted using the support bolts 14.
[0048] (4) Adjust the rolling center by adjusting the bolts.
[0049] The rolling centerline adjusting bolt 17 is used to correctly adjust the inlet guide when there is a deviation between the inlet guide and the rolling centerline (see figure).
Claims
1. A rod mill entry guide fabricated from a structural member, characterized by, Adopt structural parts and new combination mode, main structural components include: upper support arm, lower support arm, frame box, support arm shaft, guide roller, guide fixing device, guide roller cooling water pipe; New combination mode: the upper support arm is welded by two upper support arm plates (1) and upper support arm connecting plates (2), the upper guide plate (6) is welded with two upper support arm plates (1) and upper support arm connecting plates (2), the inclined guide plate (7) is welded with the upper guide plate (6); the horn plate (11) is welded with two upper support arm plates (1) and upper support arm connecting plates (2); the front baffle (25) is welded with two upper support arm plates (1); The lower support arm is welded by two lower support arm plates (7) and lower support arm connecting plates (8), the lower guide plate (9) is welded with two lower support arm plates (7) and lower support arm connecting plates (8), the side guide plate (10) is welded with two lower support arm plates (7), lower support arm connecting plates (8), lower guide plate (9) and guide baffle block (21), the inclined guide plate (7) is welded with lower support arm connecting plates (8) and side guide plate (10), the horn plate (11) and side horn plate (22) are welded with two lower support arm plates (7) and lower support arm connecting plates (8), the front baffle (25) is welded with two lower support arm plates (7); The frame box is welded by frame side plate (16) and frame connecting plate (17), the base plate (18) is welded with frame side plate (16), forming the frame box; The support arm shaft (5) is connected and fixed with the upper support arm, lower support arm and frame box; The guide roller (19) is connected with the support arm through guide roller shaft (7); The guide fixing device (11) is welded with the frame box, and the inlet guide is reinforced by the guide fixing device (11) and the guide beam of rolling mill; The guide roller cooling water pipe (24) is vertically installed on the frame connecting plate (17), close to the guide roller (19).