High-speed wire rod trial rolling control system and method

Abstract

The present invention provides a high-speed wire rod trial rolling control system and method, which relates to the technical field of special rolling mills. The system includes a rough rolling production line, a head-off roller, a hot metal sensor, a first flying shear, and an intermediate rolling production line, which are arranged in sequence; the rough rolling production line transports the accompanying rolling material to the head-off roller after rough rolling, and the head-off roller transports the accompanying rolling material to the first flying shear. The hot metal sensor is used to mark N equal parts of the accompanying rolling material, where N ≥ 2. The first flying shear is used to first cut off the first 1 / N length of the accompanying rolling material for trial rolling on the intermediate rolling production line, and then cut off the second 1 / N length of the accompanying rolling material for trial rolling, and so on, until the intermediate rolling production line completes N trial rollings. The system and method, by cutting the accompanying rolling material multiple times and performing multiple trial rolling on the intermediate rolling production line, not only fully adjusts the material size and tension in the area, but also saves the consumption of energy such as gas, reduces unnecessary waste, and provides a guarantee for subsequent stable batch rolling.

Description

Technical Field

[0001] The present invention relates to the technical field of special rolling mills, and in particular to a high-speed wire rod trial rolling control system and method. Background Art

[0002] Due to the rapid rolling speeds and production pace of high-speed wire rod, rolling stability is a key factor in ensuring improved wire rod production efficiency. When switching between rolling grades, good material shape control and tension conditions in the intermediate rolling area ensure that qualified semi-finished products are provided for the subsequent finishing mill, which is crucial for product quality control.

[0003] Therefore, when switching steel grades, a trial roll is first performed using a secondary rolling stock to calibrate the profile and tension in the intermediate rolling zone. However, using only one secondary rolling stock often makes it difficult to accurately adjust the profile and tension in the intermediate rolling zone. In the past, inexperienced operators required two to three steel bars to fine-tune the profile and tension of the intermediate rolling stock. However, excessive use of secondary rolling stock wastes energy such as gas during heating and generates excessive scrap during cutting, increasing rolling costs. Furthermore, the secondary rolling stock used for adjustment cannot be placed in the finishing mill and must be cut using a flying shear, which undoubtedly increases production costs.

[0004] Therefore, the existing trial rolling method uses too much accompanying rolling material, which will cause waste of heating energy, loss of billets and loss of manpower, etc., resulting in a lower yield rate of billets and an increase in rolling costs. Summary of the Invention

[0005] The purpose of the present invention includes providing a high-speed wire trial rolling control system and method, which can cut the accompanying rolling material multiple times to achieve the purpose of using one accompanying rolling material for multiple trial rolling, greatly reducing the cost of adjusting the material size and tension in the mid-rolling zone.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] In a first aspect, the present invention provides a high-speed wire rod trial rolling control system, which includes a rough rolling production line, a head stripping roller, a hot metal sensor, a first flying shear, and an intermediate rolling production line arranged in sequence;

[0008] The rough rolling production line transports the accompanying rolled material to the stripping roller after rough rolling, and the stripping roller transports the accompanying rolled material to the first flying shear. The hot metal sensor is used to mark the N equal parts of the accompanying rolled material, where N ≥ 2. The first flying shear is used to first cut off the first 1 / N length of the accompanying rolled material for trial rolling on the intermediate rolling production line, and then cut off the second 1 / N length of the accompanying rolled material for trial rolling. This cycle continues until the intermediate rolling production line completes N trial rollings.

[0009] In an optional implementation, the value of N is 3.

[0010] In an optional embodiment, a heat-insulating cover is provided on the head-removing roller. When the previous 1 / N length of the accompanying rolling material is trial-rolled, the remaining accompanying rolling material is returned to the heat-insulating cover.

[0011] In an optional embodiment, the stripping roller is used to rotate forward to transport the rolled material to the first flying shear until the first flying shear cuts off 1 / N length of the rolled material, and the stripping roller is used to rotate reversely to return the remaining rolled material to the insulation cover.

[0012] In an optional embodiment, after the intermediate rolling production line completes the trial rolling process of a 1 / N length of accompanying rolling material, the head-removing roller is used to transport the remaining accompanying rolling material to the first flying shear until the first flying shear cuts off the next 1 / N length of accompanying rolling material.

[0013] In an optional embodiment, the high-speed wire trial rolling control system also includes a pinch roller, which is arranged between the first flying shear and the intermediate rolling production line. The pinch roller is used to receive the 1 / N length of the accompanying rolling material cut by the first flying shear and transport it to the intermediate rolling production line.

[0014] In an optional embodiment, the high-speed wire trial rolling control system further includes a second flying shear, which is arranged at the rear side of the intermediate rolling production line and is used for breaking the accompanying rolling material that has undergone the trial rolling.

[0015] In a second aspect, the present invention provides a high-speed wire rod trial rolling control method, the high-speed wire rod trial rolling control method comprising:

[0016] S1: Mark the N equal parts of the rolled material, where N ≥ 2;

[0017] S2: First cut the first 1 / N length of the accompanying rolling material for trial rolling on the intermediate rolling line, then cut the second 1 / N length of the accompanying rolling material for trial rolling, and repeat this cycle until the intermediate rolling line completes N trial rollings.

[0018] In an optional embodiment, S2 includes:

[0019] When the last 1 / N length of the accompanying rolling material is being trial-rolled, the remaining accompanying rolling material is returned to the heat-insulating cover.

[0020] In an optional embodiment, S2 further includes:

[0021] The 1 / N length of the accompanying rolling material that has completed the trial rolling is broken into pieces.

[0022] The beneficial effects of the high-speed wire rod trial rolling control system and method provided by the embodiments of the present invention include:

[0023] The system and method cut the accompanying rolling material into multiple sections and conduct multi-section trial rolling on the intermediate rolling production line, which not only fully adjusts the material size and tension in the area, but also saves the consumption of energy such as gas, reduces unnecessary waste, and provides a guarantee for subsequent stable batch rolling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of a high-speed wire rod trial rolling control system provided by the first embodiment of the present invention;

[0026] Figure 2 This is a flow chart of a high-speed wire trial rolling control method provided by the second embodiment of the present invention.

[0027] Icons: 100-high-speed wire trial rolling control system; 1-rough rolling production line; 2-heading roller; 3-insulation cover; 4-hot metal sensor; 5-first flying shear; 6-pinch roller; 7-intermediate rolling production line; 8-second flying shear; 200-accompanying rolling material. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0031] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0033] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0034] First embodiment

[0035] Please refer to Figure 1 This embodiment provides a high-speed wire trial rolling control system 100, which includes a rough rolling production line 1, a head-stripping roller 2, a hot metal sensor 4, a first flying shear 5, a pinch roller 6, an intermediate rolling production line 7 and a second flying shear 8 arranged in sequence.

[0036] After rough rolling on the rough rolling production line 1, the accompanying rolled material 200 is conveyed to the stripping roller 2, and the stripping roller 2 conveys the accompanying rolled material 200 to the first flying shear 5. The hot metal sensor 4 is used to mark the N equal parts of the accompanying rolled material 200, where N≥2, that is, the hot metal sensor 4 can measure the length of the accompanying rolled material 200 and measure the required length on the accompanying rolled material 200.

[0037] The first flying shear 5 is used to cut the first 1 / N length of the accompanying rolling material 200 for trial rolling on the intermediate rolling line 7. It then cuts the second 1 / N length of the accompanying rolling material 200 for trial rolling, and repeats this cycle until the intermediate rolling line 7 completes N trial rollings. In this way, the accompanying rolling material 200 is cut multiple times and multiple sections of trial rolling are carried out on the intermediate rolling line 7. This not only fully adjusts the material size and tension in the area, but also saves gas and other energy consumption, reduces unnecessary waste, and ensures stable subsequent batch rolling.

[0038] In this embodiment, N is set to 3, taking into account both the efficiency and accuracy of the adjustment of the intermediate rolling line 7. That is, the first flying shear 5 sequentially shears a single piece of accompanying material 200 into three equal-length segments, which are then trial-rolled by the intermediate rolling line 7. This allows the material size and tension of the intermediate rolling line 7 to be fully adjusted, improving both the efficiency and accuracy of the adjustment.

[0039] The stripping roller 2 is equipped with a heat preservation cover 3. When the previous 1 / N length of the accompanying rolling material 200 is undergoing trial rolling, the remaining accompanying rolling material 200 is returned to the heat preservation cover 3. Specifically, the stripping roller 2 first rotates forward to convey the accompanying rolling material 200 to the first flying shear 5. After the first flying shear 5 cuts the accompanying rolling material 200 of 1 / N length, the stripping roller 2 then rotates reversely to return the remaining accompanying rolling material 200 to the heat preservation cover 3. In this way, the remaining accompanying rolling material 200 is well insulated, and the next shearing and trial rolling can be carried out directly, avoiding repeated heating of the accompanying rolling material 200 and wasting energy.

[0040] In this way, after the intermediate rolling production line 7 completes the trial rolling process of a 1 / N length of accompanying rolling material 200, the head-stripping roller 2 rotates forward again to transport the remaining accompanying rolling material 200 to the first flying shear 5 until the first flying shear 5 cuts off the next 1 / N length of accompanying rolling material 200, and then returns the remaining accompanying rolling material 200 to the insulation cover 3. If there is no remaining accompanying rolling material 200, the head-stripping roller 2 can stop rotating.

[0041] The pinch roller 6 is arranged between the first flying shear 5 and the intermediate rolling production line 7. Every time the first flying shear 5 cuts off a section of 1 / N length of the accompanying rolled material 200, it is received by the pinch roller 6 and transported to the intermediate rolling production line 7, so that the accompanying rolled material 200 entering the intermediate rolling production line 7 is positioned accurately.

[0042] The second flying shear 8 is arranged at the rear side of the intermediate rolling line 7. The accompanying rolling materials 200 that have been trial-rolled by the intermediate rolling line 7 all reach the second flying shear 8 in sequence, and the second flying shear 8 breaks the accompanying rolling materials 200 that have been trial-rolled.

[0043] The beneficial effects of the high-speed wire rod trial rolling control system 100 provided in this embodiment include:

[0044] By cutting the accompanying rolling material more than 200 times and conducting multi-section trial rolling on the intermediate rolling production line 7, the system not only fully adjusts the material size and tension in the area, but also saves the consumption of energy such as gas, reduces unnecessary waste, and provides a guarantee for subsequent stable batch rolling.

[0045] Second embodiment

[0046] Please refer to Figure 1 and Figure 2 This embodiment provides a high-speed wire trial rolling control method, which can be implemented using the high-speed wire trial rolling control system 100 provided in the first embodiment, and of course can also be implemented using equipment with similar functions.

[0047] The high-speed wire rod trial rolling control method comprises the following steps:

[0048] S1: Mark N equally divided portions of the rolling material 200, where N≥2.

[0049] In this embodiment, considering the efficiency and accuracy of the adjustment of the intermediate rolling production line 7, the value of N is set to 3. The hot metal sensor 4 is used to mark the N equally divided portions of the accompanying rolling material 200.

[0050] S2: First cut the first 1 / N length of the accompanying rolling material 200 for trial rolling on the intermediate rolling line 7, then cut the second 1 / N length of the accompanying rolling material 200 for trial rolling, and repeat this cycle until the intermediate rolling line 7 completes N trial rollings.

[0051] That is to say, the first flying shear 5 is used to cut 1 / N length from the accompanying rolling material 200 each time. In this embodiment, the first flying shear 5 will cut one accompanying rolling material 200 into three small segments of equal length in turn, and the intermediate rolling production line 7 will test roll the three small segments of equal length in turn, so that the material size and tension of the intermediate rolling production line 7 are fully adjusted, thereby improving the efficiency and accuracy of the adjustment.

[0052] In this way, the accompanying rolling material is cut more than 200 times and subjected to multi-section trial rolling in the intermediate rolling production line 7, which not only fully adjusts the material size and tension in this area, but also saves the consumption of energy such as gas, reduces unnecessary waste, and provides a guarantee for subsequent stable batch rolling.

[0053] Specifically, the stripping roller 2 can be used to convey 1 / N length of the accompanying rolled material 200 to the first flying shear 5 each time. The first flying shear 5 cuts 1 / N length from the entire accompanying rolled material 200, and conveys the 1 / N length of the accompanying rolled material 200 to the intermediate rolling production line 7 through the clamping roller 6. After the intermediate rolling production line 7 completes the trial rolling of the 1 / N length of the accompanying rolled material 200, it is conveyed to the second flying shear 8, and the second flying shear 8 breaks the 1 / N length of the accompanying rolled material 200 that has completed the trial rolling.

[0054] In this way, the intermediate rolling production line 7 completes the trial rolling of the N-section accompanying rolling material 200 in turn, which not only fully adjusts the material size and tension in this area, but also saves the consumption of energy such as gas, reduces unnecessary waste, and provides a guarantee for subsequent stable batch rolling.

[0055] Among them, when the previous 1 / N length of the accompanying rolling material 200 is trial-rolled, the remaining accompanying rolling material 200 is subjected to insulation treatment. Specifically, a heat preservation cover 3 is provided on the stripping roller 2. When the previous 1 / N length of the accompanying rolling material 200 is trial-rolled, the remaining accompanying rolling material 200 is reversely rotated by the stripping roller 2, and the remaining accompanying rolling material 200 is returned to the heat preservation cover 3. Specifically, the stripping roller 2 first rotates forward to convey the accompanying rolling material 200 to the first flying shear 5, until the first flying shear 5 cuts off the 1 / N length of the accompanying rolling material 200, and then the stripping roller 2 rotates reversely to return the remaining accompanying rolling material 200 to the heat preservation cover 3. In this way, the remaining accompanying rolling material 200 is well insulated, and the next shearing and trial rolling can be carried out directly, avoiding repeated heating of the accompanying rolling material 200 and wasting energy.

[0056] In this way, after the intermediate rolling production line 7 completes a 1 / N length of accompanying rolling material 200, the head-removing roller 2 rotates forward again to transport the remaining accompanying rolling material 200 to the first flying shear 5 until the first flying shear 5 cuts off the next 1 / N length of accompanying rolling material 200, and then returns the remaining accompanying rolling material 200 to the insulation cover 3. If there is no remaining accompanying rolling material 200, the head-removing roller 2 can stop rotating.

[0057] The beneficial effects of the high-speed wire rod trial rolling control method provided in this embodiment include:

[0058] This method cuts the accompanying rolling material into pieces more than 200 times and conducts multi-section trial rolling on the intermediate rolling production line 7. This not only fully adjusts the material size and tension in the area, but also saves the consumption of energy such as gas, reduces unnecessary waste, and provides a guarantee for subsequent stable batch rolling.

[0059] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A high-speed wire rod trial rolling control system, characterized in that: The high-speed wire rod trial rolling control system comprises a rough rolling production line (1), a head-stripping roller (2), a hot metal sensor (4), a first flying shear (5) and an intermediate rolling production line (7) which are arranged in sequence; The rough rolling production line (1) transports the accompanying rolling material (200) after rough rolling to the stripping roller (2), and the stripping roller (2) transports the accompanying rolling material (200) to the first flying shear (5). The hot metal sensor (4) is used to mark N equal parts of the accompanying rolling material (200), wherein N≥2. The first flying shear (5) is used to first cut off the first 1 / N length of the accompanying rolling material (200) for trial rolling in the intermediate rolling production line (7), and then cut off the second 1 / N length of the accompanying rolling material (200) for trial rolling, and the cycle is repeated until the intermediate rolling production line (7) completes N trial rollings.

2. The high-speed wire rod trial rolling control system according to claim 1, characterized in that: The value of N is 3.

3. The high-speed wire rod trial rolling control system according to claim 1, characterized in that: A heat preservation cover (3) is provided on the head-removing roller (2). When the last 1 / N length of the accompanying rolling material (200) is trial-rolled, the remaining accompanying rolling material (200) is returned to the heat preservation cover (3).

4. The high-speed wire rod trial rolling control system according to claim 3, characterized in that: The stripping roller (2) is used to rotate forward to transport the accompanying rolled material (200) to the first flying shear (5), until the first flying shear (5) cuts off 1 / N length of the accompanying rolled material (200), and then the stripping roller (2) is used to rotate backward to return the remaining accompanying rolled material (200) to the heat preservation cover (3).

5. The high-speed wire rod trial rolling control system according to claim 4, characterized in that: After the intermediate rolling production line (7) completes the trial rolling process of the accompanying rolling material (200) of 1 / N length, the head-removing roller (2) is used to transport the remaining accompanying rolling material (200) to the first flying shear (5) until the first flying shear (5) cuts off the next section of the accompanying rolling material (200) of 1 / N length.

6. The high-speed wire rod trial rolling control system according to claim 1, characterized in that: The high-speed wire rod trial rolling control system further comprises a pinch roller (6), wherein the pinch roller (6) is arranged between the first flying shear (5) and the intermediate rolling production line (7), and the pinch roller (6) is used to receive the accompanying rolling material (200) of 1 / N length cut by the first flying shear (5) and transport it to the intermediate rolling production line (7).

7. The high-speed wire rod trial rolling control system according to claim 1, characterized in that: The high-speed wire rod trial rolling control system further comprises a second flying shear (8), which is arranged at the rear side of the intermediate rolling production line (7), and is used for breaking the accompanying rolling material (200) that has undergone trial rolling.

8. A high-speed wire rod trial rolling control method, characterized in that: The high-speed wire rod trial rolling control method comprises: S1: Mark N equal divisions of the rolling material (200), where N≥2; S2: First, cut off the first 1 / N length of the accompanying rolling material (200) for trial rolling in the intermediate rolling production line (7), and then cut off the second 1 / N length of the accompanying rolling material (200) for trial rolling, and repeat this cycle until the intermediate rolling production line (7) completes N trial rollings.

9. The high-speed wire rod trial rolling control method according to claim 8, characterized in that S2 include: When the last 1 / N length of the accompanying rolling material (200) is subjected to trial rolling, the remaining accompanying rolling material (200) is returned to the heat-insulating cover (3).

10. The high-speed wire rod trial rolling control method according to claim 8, characterized in that: S2 also includes: The accompanying rolling material (200) having a length of 1 / N that has completed the trial rolling is subjected to a breaking process.

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