Horn mouth guide groove of roughing and intermediate rolling units of high-speed wire rod rolling mill

Abstract

The utility model discloses a high-speed wire rod rolling mill roughing and intermediate rolling unit horn mouth guide groove which comprises a guide groove body, an I-shaped hole is formed in the surface of the guide groove body, a traction block is arranged at the bottom of the I-shaped hole, a movable hole is formed in the surface of the traction block, and a movable rod movably penetrates through the interior of the movable hole. One end of the movable rod is connected with a scraping frame; by means of the I-shaped hole, the traction block, the movable rod, the scraping frame, the slope face and the first spring, after red steel enters the guide groove body, the end of the red steel abuts against the scraping frame, the scraping frame is pushed to move in the groove, residual slag in the whole groove body is pushed to a slag falling opening in the left end of the I-shaped hole in a concentrated mode to be discharged, and after the red steel is conveyed, the scraping frame is pushed to the left end of the I-shaped hole. And the first spring exerts an elastic pushing effect on the traction block, so that the scraping frame ascends into the groove body again to secondarily scrape and sweep the slag charge in the groove to the right end of the I-shaped hole for discharging, and the slag charge in the guide groove is thoroughly removed in time to avoid accumulation.

Description

Technical Field

[0001] This utility model belongs to the technical field of trumpet-mouth guide grooves, specifically relating to a trumpet-mouth guide groove for roughing and intermediate rolling mill units of high-speed wire rod mills. Background Technology

[0002] As a crucial component of high-speed wire rod mills, the roughing and intermediate rolling mills have long intervals between their stands. When hot steel passes through a mill, a transition device is needed between the two mills to facilitate its smooth entry into the next mill for rolling. Typically, a flared guide groove is used between the two roughing mill stands, such as the roughing mill stand transition guide groove described in application number 202421097956.3. This guide groove has an opening at its bottom to allow iron oxide to fall off the steel; a support roller is rotatably positioned within the opening for transporting the steel; and a flared end connects to either end of the guide groove to guide the steel. This invention solves the problem of iron oxide accumulation in the flared end between roughing mill stands and reduces surface scarring and pitting caused by scratches on the bottom of the hot steel, significantly improving production efficiency and quality.

[0003] Although the above-mentioned transition guide groove can solve the problem of iron oxide accumulating in the bell mouth between existing roughing mills and reduce the problem of scars and pits on the surface of finished wire rods caused by scratches on the bottom of the red steel, the following defects still exist: (1) Although the above-mentioned guide groove can clean iron oxide slag under the pushing action of the red steel end, the actual width of the red steel is much smaller than the inner width of the guide groove, which means that it can only clean a small part of the slag in the guide groove. The slag in the guide groove is not thoroughly cleaned and will still accumulate. Therefore, we propose a bell mouth guide groove for roughing and intermediate mills of high-speed wire rod mills. Utility Model Content

[0004] The purpose of this invention is to provide a bell-shaped guide groove for the roughing and intermediate rolling mill units of a high-speed wire rod mill, so as to solve the problem of slag accumulation in the guide groove due to incomplete cleaning mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bell-mouth guide groove for roughing and intermediate rolling mills of high-speed wire rod mills, comprising a guide groove body, an I-shaped hole on the surface of the guide groove body, a traction block at the bottom of the I-shaped hole, a movable hole on the surface of the traction block, a movable rod passing through the interior of the movable hole, a scraper connected to one end of the movable rod, a sloped surface on the inner wall of one end of the I-shaped hole, a sliding hole on the surface of the traction block, a sliding rod passing through the interior of the sliding hole, mounting brackets fixed to both ends of the sliding rod by welding, the mounting brackets being fixed to the bottom of the guide groove body by welding, and a first spring sleeved on the outer wall of one end of the sliding rod.

[0006] Preferably, a second spring is sleeved on the outer wall of the movable rod, and the second spring is located at the bottom end of the traction block.

[0007] Preferably, the longitudinal section of the movable rod is a T-shaped structure, and the movable rod and the scraper are fixedly connected by welding.

[0008] Preferably, guide holes are symmetrically arranged on both sides of the sliding hole, and the guide holes are opened on the surface of the traction block. A guide rod passes through the inside of the guide hole, and the guide rod is fixed to the surface of the mounting bracket by welding.

[0009] Preferably, the bottom surfaces of the mounting bracket and the guide groove are connected together by welding with a rib plate, and the cross-section of the rib plate is a triangular structure.

[0010] Preferably, the inner walls at both ends of the I-shaped hole are fixed with arc-shaped strips by welding.

[0011] Preferably, the longitudinal section of the scraper is a right-angled trapezoidal structure, and the longitudinal section of the traction block is an L-shaped structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) An I-shaped hole is made on the surface of the guide trough body through the designed I-shaped hole, traction block, movable rod, scraper, inclined surface, and first spring. The I-shaped hole is used for the movement of the movable rod and the scraper to discharge the slag. Under the elastic force of the first spring, the scraper is positioned on the right side of the I-shaped hole, close to the flared end of the guide trough body. After the red steel enters the guide trough body, its end presses against the scraper and pushes the scraper to move in the trough. The remaining slag in the entire trough body is concentrated and pushed to the left end of the I-shaped hole for discharge. At the same time, the scraper moves to the left end and descends into the I-shaped hole to avoid the red steel, so that the red steel can be conveyed normally. After the red steel is conveyed, the first spring applies elastic force to the traction block, pushing the inclined surface and inclined surface of the scraper to produce a squeezing effect, causing the scraper to rise. The scraper rises again into the trough body to scrape the slag in the trough to the right end of the I-shaped hole for discharge, so that the slag in the guide trough is removed in time and thoroughly to avoid When accumulation occurs, a second spring, in a compressed state, is placed on the movable rod to apply elastic downward pressure. This causes the scraper to be in a constant downward and downward state, ensuring that when the scraper moves to the left end of the I-shaped hole, which has a wider slag discharge opening than the right end, the scraper can respond more quickly and descend in time under the action of elastic force and its own gravity. This avoids insufficient descent that could affect the transfer of the red steel from the guide channel. The designed guide hole and guide rod, with the guide rod passing through the guide hole, guide and support the movement of the traction block, preventing tilting that could affect the scraper's cleaning effect. The designed rib plate reinforces the welded joints of the mounting frame and the guide channel, preventing cracking under stress. The designed arc-shaped strip, with one end of the arc shape, guides the red steel end as it passes through the slag discharge openings at both ends of the I-shaped hole, preventing the red steel end from bending downward and hitting the slag discharge openings at both ends of the I-shaped hole, thus preventing transmission blockage. Attached Figure Description

[0014] Figure 1 This is the front view of the present invention;

[0015] Figure 2 This is a three-dimensional assembly view of the scraper, traction block, slide bar, guide bar, and mounting bracket of this utility model.

[0016] Figure 3 This is a top view of the present invention;

[0017] Figure 4 This is a partial front structural cross-sectional view of the present invention;

[0018] Figure 5 This is a partial structural diagram of the guide groove of this utility model;

[0019] In the diagram: 1. Guide groove body; 2. Traction block; 3. Scraper; 4. First spring; 5. Second spring; 6. Movable rod; 7. Guide rod; 8. Mounting bracket; 9. Rib plate; 10. Sliding rod; 11. Sliding hole; 12. Guide hole; 13. Movable hole; 14. Arc strip; 15. I-shaped hole; 16. Sloping surface. Detailed Implementation

[0020] 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.

[0021] Example

[0022] Please see Figures 1 to 5 This utility model provides a technical solution: a bell-shaped guide groove for the roughing and intermediate rolling mill units of a high-speed wire rod mill, including a guide groove body 1. An I-shaped hole 15 is formed on the surface of the guide groove body 1. A traction block 2 is provided at the bottom of the I-shaped hole 15. A movable hole 13 is formed on the surface of the traction block 2. A movable rod 6 passes through the movable hole 13. One end of the movable rod 6 is connected to a scraper 3. A slope 16 is provided on the inner wall of one end of the I-shaped hole 15. A sliding hole 11 is formed on the surface of the traction block 2. A sliding rod 10 passes through the sliding hole 11. Mounting brackets 8 are welded to both ends of the sliding rod 10 and fixed to the bottom of the guide groove body 1. A first spring 4 is sleeved on the outer wall of one end of the sliding rod 10. The I-shaped hole 15 is formed on the surface of the guide groove body 1 through the designed I-shaped hole 15, traction block 2, movable rod 6, scraper 3, slope 16, and first spring 4 for... The movement of the movable rod 6 and the scraper 3 discharge of slag are controlled by the elastic force of the first spring 4, which pushes the scraper 3 to the right side of the I-shaped hole 15, close to the flared end of the guide trough 1. After the red steel enters the guide trough 1, its end presses against the scraper 3 and pushes the scraper 3 to move in the trough. The remaining slag in the entire trough is concentrated and pushed to the left end of the I-shaped hole 15 for discharge. At the same time, the scraper 3 moves to the left end and descends into the I-shaped hole 15 to avoid the red steel, so that the red steel can be conveyed normally. After the red steel is conveyed, the first spring 4 applies an elastic force to the traction block 2, which pushes the inclined surface and the slope surface 16 of the scraper 3 to produce a squeezing effect, causing the scraper 3 to rise. The scraper 3 rises again into the trough to scrape the slag in the trough to the right end of the I-shaped hole 15 for discharge, so that the slag in the guide trough is cleared in time and thoroughly to avoid accumulation.

[0023] In this embodiment, preferably, a second spring 5 is sleeved on the outer wall of the movable rod 6. The second spring 5, which is in a compressed state, is set on the movable rod 6 to apply elastic downward pressure, thereby driving the scraper 3 to be in a state of constant downward pressure and downward movement. This ensures that when the scraper 3 moves to the left end of the I-shaped hole 15, which has a wider slag discharge opening than the right end, the scraper 3 can respond more quickly and descend in time under the action of elastic force and its own gravity, so as to avoid the red steel being unable to descend in time and affecting the transmission of the steel from the guide trough 1. The second spring 5 is located at the bottom of the traction block 2. The longitudinal section of the movable rod 6 is a T-shaped structure. The movable rod 6 and the scraper 3 are fixedly connected by welding.

[0024] In this embodiment, preferably, guide holes 12 are symmetrically arranged on both sides of the sliding hole, and the guide holes 12 are opened on the surface of the traction block 2. A guide rod 7 passes through the inside of the guide hole 12. Through the designed guide hole 12 and guide rod 7, the guide rod 7 passes through the guide hole 12 to guide and support the movement of the traction block 2, so as to avoid tilting and affect the scraping and cleaning effect of the scraper 3. The guide rod 7 is fixed to the surface of the mounting frame 8 by welding.

[0025] In this embodiment, preferably, the bottom surfaces of the mounting frame 8 and the guide channel 1 are connected by welding with a rib plate 9. The designed rib plate 9 reinforces the weld between the mounting frame 8 and the guide channel 1 to prevent cracking due to force. The cross-section of the rib plate 9 is triangular. The inner walls of both ends of the I-shaped hole 15 are fixed with arc-shaped strips 14 by welding. The arc-shaped strips 14 are designed with one end face being arc-shaped to ensure that when the red steel end passes through the slag outlets at both ends of the I-shaped hole 15, it plays a guiding transition role to prevent the red steel end from bending down and hitting the slag outlets at both ends of the I-shaped hole 15, causing conveying blockage. The longitudinal section of the scraper 3 is a right-angled trapezoidal structure, and the longitudinal section of the traction block 2 is an L-shaped structure.

[0026] The working principle and usage process of this utility model are as follows: The guide trough 1 is installed between the roughing and intermediate rolling mills to achieve the transition and transmission of red-hot wire rod. This utility model has an I-shaped hole 15 on the surface of the guide trough 1 for the movement of the movable rod 6 and the scraper 3 for slag discharge. Under the elastic force of the first spring 4, the scraper 3 is positioned on the right side of the I-shaped hole 15, close to the flared end of the guide trough 1. After the red-hot wire enters the guide trough 1, its end presses against the scraper 3, pushing the scraper 3 to move within the trough. This concentrates and pushes the remaining slag in the entire trough to the left end of the I-shaped hole 15 for discharge. Simultaneously, when the scraper 3 moves to the left end, the second spring 5, which is in a compressed state, applies a downward elastic force on the movable rod 6, thereby driving the scraper 3 to be constantly pressed down and... In the downward movement, when the scraper 3 moves to the left end of the I-shaped hole 15, which has a wider slag discharge opening than the right end, the scraper 3 can respond more quickly and descend in time under the action of elasticity and its own gravity, so as to avoid the red steel being unable to descend in time and affecting the transmission of the red steel from the guide trough 1. The scraper 3 descends into the I-shaped hole 15 to avoid obstruction, so that the red steel can be transmitted normally. After the red steel is transmitted, the first spring 4 applies elastic force to the traction block 2, pushing the inclined surface and the slope surface 16 of the scraper 3 to produce a squeezing effect, causing the scraper 3 to rise again into the trough. At the same time, the first spring 4 continues to push the scraper 3 back in the guide trough 1, scraping the slag in the trough a second time to the right end of the I-shaped hole 15 for discharge, so that the slag in the guide trough is cleared in time and thoroughly to avoid accumulation.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bell-mouth guide groove for roughing and intermediate rolling mills of high-speed wire rod mills, comprising a guide groove body (1), characterized in that: The surface of the guide groove (1) is provided with an I-shaped hole (15), and a traction block (2) is provided at the bottom of the I-shaped hole (15). The surface of the traction block (2) is provided with a movable hole (13). A movable rod (6) is movably passed through the interior of the movable hole (13). One end of the movable rod (6) is connected to a scraper (3). One end of the I-shaped hole (15) is provided with a slope surface (16). The surface of the traction block (2) is provided with a sliding hole (11). A sliding rod (10) is passed through the interior of the sliding hole (11). Both ends of the sliding rod (10) are fixed with mounting brackets (8) by welding. The mounting brackets (8) are fixed to the bottom of the guide groove (1) by welding. A first spring (4) is sleeved on the outer wall of one end of the sliding rod (10).

2. The trumpet-shaped guide groove of the roughing and intermediate rolling mill unit of a high-speed wire rod mill according to claim 1, characterized in that: The outer wall of the movable rod (6) is fitted with a second spring (5), and the second spring (5) is located at the bottom end of the traction block (2).

3. The trumpet-shaped guide groove of the roughing and intermediate rolling mill unit of a high-speed wire rod mill according to claim 1, characterized in that: The longitudinal section of the movable rod (6) is a T-shaped structure, and the movable rod (6) and the scraper (3) are fixedly connected by welding.

4. The trumpet-shaped guide groove of the roughing and intermediate rolling mill unit of a high-speed wire rod mill according to claim 1, characterized in that: The sliding hole (11) has guide holes (12) symmetrically arranged on both sides of the outside, and the guide holes (12) are opened on the surface of the traction block (2). A guide rod (7) passes through the inside of the guide hole (12), and the guide rod (7) is fixed to the surface of the mounting bracket (8) by welding.

5. The trumpet-shaped guide groove of the roughing and intermediate rolling mill unit of a high-speed wire rod mill according to claim 1, characterized in that: The bottom surfaces of the mounting bracket (8) and the guide groove (1) are connected by welding with a rib plate (9), and the cross section of the rib plate (9) is a triangular structure.

6. The trumpet-shaped guide groove of the roughing and intermediate rolling mill unit of a high-speed wire rod mill according to claim 1, characterized in that: Both ends of the I-shaped hole (15) have arc-shaped strips (14) fixed to their inner walls by welding.

7. The trumpet-shaped guide groove of the roughing and intermediate rolling mill unit of a high-speed wire rod mill according to claim 1, characterized in that: The longitudinal section of the scraper (3) is a right-angled trapezoidal structure, and the longitudinal section of the traction block (2) is an L-shaped structure.

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