A horizontal looper for preventing scratches during wire rolling

Abstract

The present invention provides a horizontal looper for preventing scratches during wire rolling, which is applied to the technical field of high-speed wire rolling. The horizontal looper for preventing scratches during wire rolling comprises a horizontal looper table (1), an inlet guide roller (2), an outlet guide roller I (3), and a looping roller (4), and also comprises a horizontal pressure roller (5) and a tapered pressure roller (6). A tapered pressure roller (6) is arranged near the inlet guide roller (2), another tapered pressure roller (6) is arranged near the outlet guide roller I (3), and a horizontal pressure roller (5) is arranged between the tapered pressure roller (6) near the outlet guide roller I (3) and the outlet guide roller I (3). The horizontal looper for preventing scratches during wire rolling according to the present invention can effectively eliminate scratches caused by contact and friction between the wire and the surface of the looper table, thereby improving the wire rolling quality and effectively prolonging the service life of components such as the horizontal looper table.

Description

Technical Field

[0001] The invention belongs to the technical field of high-speed wire rod rolling, and more specifically, relates to a horizontal looper for preventing scratches during wire rod rolling. Background Art

[0002] In order to ensure the dimensional accuracy of products, high-speed wire mills use micro-tension or tension-free rolling to eliminate the tension fluctuations caused by various dynamic interferences during the rolling process and the resulting fluctuations in the size of the rolled products. In order to eliminate the tension fluctuations of the rolled products, a looper is generally added between the stands of the rolling mills in adjacent processes to eliminate the dynamic speed change interference of the continuous rolling mill stands and ensure the accuracy of the rolled products. The looper is generally composed of a looper table, support rollers, guide grooves, looper rollers and looper scanners. The support rollers and looper rollers play a guiding and supporting role for the rolled products. The looper rollers and steering guides are driven by cylinders, and the looper roller cylinders are controlled by double solenoid valves. The looper is formed with the assistance of the looper device and can dynamically maintain the arc-shaped loop, that is, the looper. The size of the looper is used to absorb and store part of the excess red steel and balance the tension between stands, that is, the looper is used to achieve tension-free rolling.

[0003] In the high-speed wire rolling mill of the prior art, during the normal production process, when the wire (such as red steel, etc.) leaves the previous rolling mill and passes through the loop table to enter the next adjacent stand, the wire directly contacts the loop table surface, which will cause scratches on the wire surface, bringing significant impact on the subsequent deep processing of the product; because the wire runs close to the table surface, it contacts the bottom edge of the inlet and outlet guide rollers, which is easy to form a "knife edge" on the lower edge of the guide roller, seriously reducing the life of the guide roller and affecting the product quality; when the horizontal loop is adjusting the loop amount, when the relative The speed matching of the adjacent rack is unreasonable or other reasons cause the deviation of the starting amount to be too large. The automatic control system is too late or unable to adjust. The dynamic arc-shaped sleeve will seriously shake up and down. The shaking upward will cause the red steel to knot. The arc sleeve that is too low will cause serious scratches and wire breakage, resulting in steel piles. At the same time, during the process of the looper, the looper roller is driven by the cylinder to push the wire to move quickly on the surface of the looper table to form a looper, and the wire will also be seriously scratched, which will have an adverse effect on the quality control of the final product. Therefore, the existing horizontal looper has obvious technical deficiencies. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in view of the shortcomings of the prior art, a wire rolling machine with a simple structure is provided, which can effectively eliminate the scratches caused by the contact and friction between the wire and the surface of the looper table during the wire rolling production process, improve the wire rolling quality, and effectively increase the service life of the horizontal looper table, guide rollers, and looping rollers to prevent scratches on the horizontal looper.

[0005] It is necessary to adopt a new type of looping equipment to extend the service life of the guide rollers and lifting rollers on the looping table and eliminate the scratches caused by red steel on the surface of the looping table.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0007] The present invention discloses a horizontal looper for preventing scratches during wire rolling. The horizontal looper for preventing scratches during wire rolling comprises a horizontal looper table, an inlet guide roller, an outlet guide roller I, and a looper roller. The horizontal looper also comprises a horizontal pressure roller and a tapered pressure roller. A tapered pressure roller is arranged near the inlet guide roller, another tapered pressure roller is arranged near the outlet guide roller I, and a horizontal pressure roller is arranged between the tapered pressure roller near the outlet guide roller I and the outlet guide roller I.

[0008] The horizontal pressure roller's lower end surface is set to be higher than the horizontal loop table surface, and a limiting structure is formed between the horizontal pressure roller's lower end surface and the horizontal loop table surface to limit the wire material from shaking upward.

[0009] The tapered roller for preventing the horizontal loop from being scratched during wire rolling comprises a tapered roller, on which a non-looped wire position and a looped wire position are arranged, and the horizontal height of the looped wire position is arranged to be higher than the horizontal height of the non-looped wire position.

[0010] The horizontal height of the position of the non-sleeved wire is set to be equal to the horizontal height of the upper surface of the horizontal loop table, and the horizontal height of the position of the sleeved wire is set to be higher than the horizontal height of the upper surface of the horizontal loop table.

[0011] The inlet guide roller for preventing the horizontal looper from being scratched during wire rolling comprises a horizontal roller surface and a side surface of the inlet guide roller, and the outlet guide roller I comprises a horizontal roller surface and a side surface of the outlet guide roller I.

[0012] The inlet guide roller is located above the wire to be rolled, and the outlet guide roller I is located below the wire to be rolled.

[0013] The horizontal height of the lower end surface of the horizontal roller surface of the inlet guide roller of the inlet guide roller is set to be lower than the horizontal height of the upper surface of the horizontal loop table, and the horizontal height of the upper end surface of the horizontal roller surface of the outlet guide roller I of the outlet guide roller I is set to be higher than the horizontal height of the upper surface of the horizontal loop table.

[0014] The distance between the position of the sleeved wire and the surface above the horizontal loop table is X, and the distance between the lower end surface of the horizontal pressure roller and the horizontal loop table is set to be equal to 1.5 times the wire diameter + X.

[0015] The wire rolling scratch-proof horizontal looper also includes an exit guide roller II, and the horizontal height of the lower end surface of the horizontal roller surface of the exit guide roller II is set to be higher than the horizontal height of the upper surface of the horizontal looper table.

[0016] A tapered pressure roller is set near the inlet guide roller, and the angle between it and the center line of the loop is controlled within the range of 15°-20°. Another tapered pressure roller is set near the outlet guide roller I, and the angle between it and the center line of the loop is controlled within the range of 15°-20°.

[0017] By adopting the technical solution of the present invention, the following beneficial effects can be obtained:

[0018] The wire rolling method of the present invention prevents the horizontal looper from being scratched. During the high-speed and continuous rolling of the wire, the wire passes through the wire rolling method to prevent the horizontal looper from being scratched, and the inlet guide roller and the outlet guide roller I play a reliable guiding and supporting role for the wire to enter and exit. At the same time, by adding horizontal pressure rollers, the horizontal pressure rollers cooperate with the horizontal loop table to limit the up and down shaking range of the wire during the rolling process, so that the excessive upward shaking of the wire can be completely limited, effectively eliminating the occurrence of knotting and piling problems of the strip steel. After adding the tapered pressure roller, when the wire passes through the horizontal loop table, whether it is the looping or the looping, it will not contact the horizontal loop table, and the wire will not slide along the horizontal loop table, but will be suspended and supported by the tapered pressure roller. In this way, the sliding friction between the wire and the horizontal loop table is changed from the original sliding friction to the rolling friction with the tapered roller, effectively eliminating the scratches on the wire by the horizontal loop table. In this way, not only the quality of the wire is improved because scratches are eliminated, but also the wire moves in multiple positions and rolls, reducing friction, effectively protecting the various components of the horizontal looper for preventing scratches during wire rolling, improving service life, and reducing maintenance costs. The horizontal looper for preventing scratches during wire rolling described in the present invention has a simple structure. During the wire rolling production process, it can effectively eliminate scratches caused by contact and friction between the wire and the surface of the looper table, improve the wire rolling quality, and effectively increase the service life of components such as the horizontal looper table, the inlet guide roller, the outlet guide roller, and the looper roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents and symbols in the drawings of this specification:

[0020] Figure 1 It is a structural schematic diagram of the horizontal looper for preventing scratches during wire rolling according to the present invention;

[0021] Figure 2 It is a structural schematic diagram of the horizontal pressure roller for preventing the horizontal looper from being scratched during wire rolling according to the present invention;

[0022] Figure 3It is a schematic structural diagram of a tapered roller for preventing a horizontal loop from being scratched during wire rolling according to the present invention;

[0023] Figure 4 It is a structural schematic diagram of the outlet guide roller I of the wire rod rolling to prevent scratching of the horizontal looper according to the present invention;

[0024] The markings in the attached figure are: 1. horizontal loop table; 2. inlet guide roller; 3. outlet guide roller I; 4. looping roller; 5. horizontal pressure roller; 6. tapered pressure roller; 7. horizontal pressure roller; 8. tapered pressure roller; 9. position of wire without loop measurement; 10. position of wire with loop measurement; 11. horizontal roller surface of inlet guide roller; 12. side surface of inlet guide roller; 13. horizontal roller surface of outlet guide roller I; 14. side surface of outlet guide roller I; 15. outlet guide roller II; 16. horizontal roller surface of outlet guide roller II; 17. center line of loop; 18. wire to be rolled; 19. pressure roller bearing; 20. pressure roller shaft. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various components involved, the function and working principle of each part, etc., through the description of the embodiments with reference to the accompanying drawings:

[0026] As attached Figure 1 -Attached Figure 4As shown, the present invention is a horizontal looper for preventing scratches during wire rolling, and the horizontal looper for preventing scratches during wire rolling comprises a horizontal looper table 1, an inlet guide roller 2, an outlet guide roller Ⅰ3, and a looping roller 4, and also comprises a horizontal pressure roller 5 and a tapered pressure roller 6. A tapered pressure roller 6 is arranged near the inlet guide roller 2, another tapered pressure roller 6 is arranged near the outlet guide roller Ⅰ3, and a horizontal pressure roller 5 is arranged between the tapered pressure roller 6 near the outlet guide roller Ⅰ3 and the outlet guide roller Ⅰ3. In the above structure, during the high-speed and continuous rolling of the wire, the wire passes through the horizontal looper for preventing scratches during wire rolling, and the inlet guide roller 2 and the outlet guide roller Ⅰ3 play a reliable guiding and supporting role for the wire to enter and exit. At the same time, by adding the horizontal pressure roller 5, the horizontal pressure roller 5 cooperates with the horizontal looper table 1 to limit the range of the wire's up and down shaking during the rolling process, so that the wire can completely limit the excessive upward shaking, and effectively eliminate the problems of strip steel knotting and steel piling. After adding the tapered pressure roller 6, when the wire passes through the horizontal loop table 1, whether it is taking off or dropping off the loop, it will not come into contact with the horizontal loop table 1, and the wire will not slide along the horizontal loop table 1, but will be supported in the air by the tapered pressure roller 6. In this way, the sliding friction between the wire and the horizontal loop table 1 is changed to rolling friction with the tapered roller, which effectively eliminates the scratches on the wire by the horizontal loop table 1. In this way, not only the quality of the wire is improved by eliminating the scratches, but also the various components of the horizontal loop that are prevented from being scratched during wire rolling are effectively protected, the service life is increased, and the maintenance cost is reduced. The horizontal loop that prevents scratches during wire rolling described in the present invention has a simple structure. During the wire rolling production process, it can effectively eliminate the scratches caused by the contact friction between the wire and the surface of the loop table, improve the wire rolling quality, and effectively increase the service life of components such as the horizontal loop table, the inlet guide roller, the outlet guide roller, and the looping roller.

[0027] The horizontal height of the lower end surface of the horizontal pressure roller 7 of the horizontal pressure roller 5 is set to be higher than the horizontal height of the horizontal loop table 1, and a limit structure for limiting the upward shaking of the wire is formed between the lower end surface of the horizontal pressure roller 7 and the horizontal loop table 1. The above structure sets the distance between the horizontal pressure roller and the horizontal loop table 1, and the wire passes between the horizontal pressure roller and the horizontal loop table 1 during the rolling process. In this way, during the rolling process, when the wire is in the position of the wire with sleeve quantity, it can fluctuate up and down in the set direction, which will not affect the necessary up and down shaking in the wire production process, and can effectively limit the shaking of the wire when the wire shakes too much and the automatic control system has no time or cannot adjust, so as to avoid the occurrence of knotting and steel piling accidents caused by serious up and down shaking, and ensure production safety.

[0028] The tapered roller 6 for preventing the horizontal loop from being scratched during wire rolling comprises a tapered roller 8, on which a wire position 9 without a sleeve and a wire position 10 with a sleeve are arranged, and the horizontal height of the wire position 10 with a sleeve is set higher than the horizontal height of the wire position 9 without a sleeve. In the above structure, when the wire passes through the horizontal loop of the rolling mill to prevent scratches during wire rolling according to the rolling direction, it first passes through the inlet guide rail, then passes through the sleeve roller, and then passes through a tapered roller 6, a horizontal loop table 1, another tapered roller 6, a horizontal roller 2, and an outlet guide roller Ⅰ3 in sequence, and then leaves the rolling mill. In this process, after the wire enters the rolling mill, it is sleeved by the sleeve roller 4, and the wire slides from the small end of the tapered roller with a small diameter size to the sleeve wire position 10 in the middle of the tapered roller, completing a sleeve action. In this way, the tapered rollers provide reliable support for the wires, which is beneficial for the wires to pass through. Due to the tapered roller 6, the wires will not contact the horizontal looper table 1, and the wires are in a rolling state with the tapered roller 6, the inlet guide roller, and the outlet guide roller I, which effectively reduces the friction of the wires. On the one hand, it prevents the wires from being scratched by the friction with the horizontal looper table 1, and on the other hand, it also provides reliable protection for the parts of the horizontal looper to prevent scratches during the rolling of the wires. The tapered roller 8 is provided with two positions: a wire position 9 without a sleeve and a wire position 10 with a sleeve. When the wires bite into the next rolling mill, the sleeve-lifting roller 4 is lifted, pushing the wires from the wire position 9 without a sleeve to the wire position 10 with a sleeve. At this time, the wires will not contact the horizontal looper table 1, completing the transformation of the sliding friction between the wires and the horizontal looper table 1 into rolling friction between the wires and the tapered rollers. In this way, scratches on the wire can be effectively avoided, the overall quality of the rolled wire can be improved, and the various components of the looper can be protected.

[0029] The structure in which the horizontal height of the non-sleeved wire position 9 is set equal to the horizontal height of the upper surface of the horizontal loop table 1, and the horizontal height of the sleeved wire position 10 is set higher than the horizontal height of the upper surface of the horizontal loop table 1. In the above structure, when the wire is located at the sleeved wire position 10 during the rolling process, there will be no contact between the wire 18 and the horizontal loop table 1, but only rolling friction between the wire 18 and the tapered roller 6.

[0030] The inlet guide roller 2 for preventing the horizontal looper from being scratched during wire rolling comprises an inlet guide roller horizontal roller surface 11 and an inlet guide roller side surface 12, and the outlet guide roller Ⅰ3 comprises an outlet guide roller Ⅰ horizontal roller surface 13 and an outlet guide roller Ⅰ side surface 14. The inlet guide roller 2 is located above the wire 13 to be rolled, and the outlet guide roller Ⅰ3 is located below the wire 13 to be rolled. The horizontal height of the lower end surface of the inlet guide roller horizontal roller surface 11 of the inlet guide roller 2 is set to be lower than the horizontal height of the upper surface of the horizontal looper table 1, and the horizontal height of the upper end surface of the outlet guide roller Ⅰ horizontal roller surface 13 of the outlet guide roller Ⅰ3 is set to be higher than the horizontal height of the upper surface of the horizontal looper table 1. The above structure sets the mutual state between the horizontal looper table 1, the inlet guide roller 2, and the outlet guide roller Ⅰ3. In this way, the positional relationship between the wire and the inlet guide roller 2 and the outlet guide roller Ⅰ3 changes. Relative to the horizontal looper table 1, the position of the inlet guide roller is raised, and the position of the outlet guide roller Ⅰ3 is lowered. In this way, when the wire passes through, the wire basically does not contact the bottom of the corresponding guide roller, but the height is slightly higher, which is not easy to wear to the bottom of the guide roller. The red steel is basically in the middle of the guide roller. In this way, the problem of the wire always acting on the guide roller in the prior art does not occur, which greatly increases the service life of the guide roller. In this way, the maintenance frequency and maintenance cost of the equipment are effectively reduced.

[0031] The main innovations of the horizontal looper for preventing scratches during wire rolling described in the present invention are: (1) using tapered rollers to convert the original sliding friction of the wire into rolling friction, thereby solving the problem of scratches on the wire; (2) using horizontal pressure rollers to limit the large up and down shaking of the wire and eliminate the formation of the "knife edge" of the guide roller; (3) using a combination of horizontal pressure rollers and tapered rollers to fix the height of the wire without the wire contacting the bottom surface of the guide roller, thereby increasing the service life of the guide roller.

[0032] The distance between the position 10 of the wire with sleeve and the surface 1 above the horizontal looper is X, and the distance between the lower end surface of the horizontal roller 7 of the horizontal roller 5 and the horizontal looper surface 1 is set to be equal to 1.5 times the diameter of the wire + X. The above structure limits the range of the wire shaking up and down, ensuring that it can shake within a certain range while avoiding excessive shaking.

[0033] The wire rolling scratch-proof horizontal looper also includes an exit guide roller II 15, and the horizontal height of the lower end surface of the exit guide roller II horizontal roller surface 16 of the exit guide roller II 15 is set to be higher than the horizontal height of the upper surface of the horizontal looper table 1. With the above structure, the exit guide roller II 15 guides and limits the wire from another direction, and achieves reliable cooperation with the exit guide roller I3.

[0034] A tapered roller 6 is arranged near the inlet guide roller 2, and the angle between it and the center line 16 of the loop is controlled within the range of 15°-20°. Another tapered roller 6 is arranged near the outlet guide roller Ⅰ3, and the angle between it and the center line 17 of the loop is controlled within the range of 15°-20°. The main purpose of setting the angle in the above structure is to ensure that the rolled wire and the roller are kept as vertical as possible when the wire is rolled online, so as to reduce the formation of washboard marks on the roller by the rolled wire.

[0035] The wire rolling method of the present invention prevents the horizontal looper from being scratched. During the high-speed and continuous rolling of the wire, the wire passes through the wire rolling method to prevent the horizontal looper from being scratched, and the inlet guide roller and the outlet guide roller I play a reliable guiding and supporting role for the wire to enter and exit. At the same time, by adding horizontal pressure rollers, the horizontal pressure rollers cooperate with the horizontal loop table to limit the up and down shaking range of the wire during the rolling process, so that the excessive upward shaking of the wire can be completely limited, effectively eliminating the occurrence of knotting and piling problems of the strip steel. After adding the tapered pressure roller, when the wire passes through the horizontal loop table, whether it is the looping or the looping, it will not contact the horizontal loop table, and the wire will not slide along the horizontal loop table, but will be suspended and supported by the tapered pressure roller. In this way, the sliding friction between the wire and the horizontal loop table is changed from the original sliding friction to the rolling friction with the tapered roller, effectively eliminating the scratches on the wire by the horizontal loop table. In this way, not only the quality of the wire is improved because scratches are eliminated, but also the wire moves in multiple positions and rolls, reducing friction, effectively protecting the various components of the horizontal looper for preventing scratches during wire rolling, improving service life, and reducing maintenance costs. The horizontal looper for preventing scratches during wire rolling described in the present invention has a simple structure. During the wire rolling production process, it can effectively eliminate scratches caused by contact and friction between the wire and the surface of the looper table, improve the wire rolling quality, and effectively increase the service life of components such as the horizontal looper table, the inlet guide roller, the outlet guide roller, and the looper roller.

[0036] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A horizontal looper for preventing scratches during wire rolling, characterized in that: The horizontal looper for preventing scratches during wire rolling comprises a horizontal looper table (1), an inlet guide roller (2), an outlet guide roller I (3), and a looping roller (4), and also comprises a horizontal pressure roller (5) and a tapered pressure roller (6), wherein a tapered pressure roller (6) is arranged near the inlet guide roller (2), another tapered pressure roller (6) is arranged near the outlet guide roller I (3), and a horizontal pressure roller (5) is arranged between the tapered pressure roller (6) near the outlet guide roller I (3) and the outlet guide roller I (3); The horizontal height of the lower end surface of the horizontal pressure roller (7) of the horizontal pressure roller (5) is set to be higher than the horizontal loop table (1), and a limiting structure for limiting the upward shaking of the wire is formed between the lower end surface of the horizontal pressure roller (7) and the horizontal loop table (1); The tapered roller (6) for preventing the horizontal loop from being scratched during wire rolling comprises a tapered roller (8), on which a non-looping wire position (9) and a looping wire position (10) are arranged, and the horizontal height of the looping wire position (10) is arranged to be higher than the horizontal height of the non-looping wire position (9); The horizontal height of the non-sleeved wire position (9) is set to be equal to the horizontal height of the upper surface of the horizontal loop table (1), and the horizontal height of the sleeved wire position (10) is set to be higher than the horizontal height of the upper surface of the horizontal loop table (1); The angle between a tapered pressure roller (6) near the inlet guide roller (2) and the center line (17) of the loop is controlled within a range of 15°-20°, and the angle between another tapered pressure roller (6) near the outlet guide roller I (3) and the center line (17) of the loop is controlled within a range of 15°-20°; The height dimension of the sleeved wire position (10) above the horizontal loop table (1) is X, and the distance between the lower end surface of the horizontal pressure roller (7) of the horizontal pressure roller (5) and the horizontal loop table (1) is set to be equal to 1.5 times the wire diameter + X.

2. The horizontal looper for preventing scratches during wire rolling according to claim 1 is characterized in that: The inlet guide roller (2) for preventing the horizontal looper from being scratched during wire rolling comprises an inlet guide roller horizontal roller surface (11) and an inlet guide roller side surface (12), and the outlet guide roller I (3) comprises an outlet guide roller I horizontal roller surface (13) and an outlet guide roller I side surface (14).

3. The horizontal looper for preventing scratches during wire rolling according to claim 2 is characterized in that: The inlet guide roller (2) is located above the wire rod (18) to be rolled, and the outlet guide roller I (3) is located below the wire rod (18) to be rolled.

4. The horizontal looper for preventing scratches during wire rolling according to claim 2 is characterized in that: The horizontal height of the lower end surface of the horizontal roller surface (11) of the inlet guide roller (2) is set to be lower than the horizontal height of the upper surface of the horizontal loop table (1), and the horizontal height of the upper end surface of the horizontal roller surface (13) of the outlet guide roller I (3) is set to be higher than the horizontal height of the upper surface of the horizontal loop table (1).

5. The horizontal looper for preventing scratches during wire rolling according to claim 2 is characterized in that: The wire rolling scratch-proof horizontal looper also includes an exit guide roller II (15), and the horizontal height of the lower end surface of the exit guide roller II horizontal roller surface (16) of the exit guide roller II (15) is set to be higher than the horizontal height of the upper surface of the horizontal looper table (1).

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