Control method, device and equipment for flying shear

Abstract

The application discloses a flying shear control method, device and equipment, and relates to the technical field of flying shear control. The method comprises the following steps: in the case of hot-rolled strip steel, monitoring a first distance between the tail of a first strip steel and a front side guide plate of a flying shear during the shearing process of the flying shear on the first strip steel; and based on the first distance, controlling the shearing process of a second strip steel by the flying shear to improve the shearing efficiency, wherein the second strip steel is the next strip steel next to the first strip steel on a strip steel production line. The application solves the technical problem of low shearing work efficiency of the flying shear.

Description

Technical Field

[0001] This invention belongs to the field of strip steel processing technology, and particularly relates to a control method, device and equipment for flying shears. Background Technology

[0002] During the strip shearing process, the flying shear can only allow the next strip to enter the flying shear area after receiving the set value, and the set data can only be received after the strip leaves the flying shear area, which affects the rolling rhythm.

[0003] This means that the flying shear's cutting process for the next strip is controlled by the overall position of the current strip area. However, this results in excessively long intervals between strips on the production line, leading to excessive waiting time for the flying shear to move from one strip to the next. This reduces the flying shear's cutting efficiency, causing excessively long strip processing times and increased costs for the company. Therefore, the low cutting efficiency of flying shears is a technical problem that urgently needs to be solved. Summary of the Invention

[0004] This invention provides a control method, device, and equipment for flying shears, which solves the technical problem of low cutting efficiency of flying shears.

[0005] In a first aspect, embodiments of the present invention provide a flying shear control method, comprising: in the scenario of hot-rolled strip steel, during the process of the flying shear cutting a first strip steel, monitoring a first distance between the tail of the first strip steel and the front guide plate of the flying shear; based on the first distance, controlling the process of the flying shear cutting a second strip steel to improve cutting efficiency, wherein the second strip steel is the next strip steel adjacent to the first strip steel on the strip steel production line.

[0006] In conjunction with the first aspect of the present invention, in some embodiments, monitoring the first distance between the tail of the first strip and the front guide plate of the flying shear includes: monitoring the first distance by thermal detection.

[0007] In conjunction with the first aspect of the present invention, in some embodiments, controlling the process of the flying shear cutting the second strip steel based on the first distance includes: in response to the first distance increasing to a preset first distance threshold, controlling the front guide plate to receive the size data of the second strip steel so that the front guide plate completes position adjustment based on the size data; in response to a signal indicating that the front guide plate has completed position adjustment, controlling the second strip steel to be transmitted to the front guide plate within a preset time; in response to the flying shear completing the tail cutting of the first strip steel, controlling the flying shear to receive the cutting length data of the second strip steel; and the flying shear cutting the head and tail of the second strip steel based on the cutting length data.

[0008] In conjunction with the first aspect of the present invention, in some embodiments, controlling the front guide plate to receive the dimensional data of the second strip steel includes: controlling the length, thickness, and width of the second strip steel received by the front guide plate.

[0009] In conjunction with the first aspect of the present invention, in some embodiments, controlling the flying shear to receive the cutting length data of the second strip steel includes: controlling the flying shear to receive the head cutting length value and the tail cutting length value of the second strip steel.

[0010] In conjunction with the first aspect of the present invention, in some embodiments, the flying shear performs head and tail cutting on the second strip steel based on the cutting length data, including: during the process of the flying shear cutting the second strip steel, monitoring a second distance between the head of the second strip steel and the flying shear, and monitoring a third distance between the tail of the second strip steel and the flying shear; if the second distance increases to the head cutting length value, the flying shear performs head cutting on the second strip steel; if the third distance decreases to the tail cutting length value, the flying shear performs tail cutting on the second strip steel.

[0011] In conjunction with the first aspect of the present invention, in some embodiments, before the flying shear cuts the second strip, the method further includes: controlling the flying shear to rotate to a cutting preparation position, wherein the cutting preparation position includes a cutting blade angle of 220°.

[0012] In conjunction with the first aspect of the present invention, in some embodiments, before the flying shear cuts the tail of the second strip, the method further includes: controlling the flying shear to rotate to a tail-cutting preparation position, wherein the tail-cutting preparation position includes the flying shear having a tail-cutting blade angle of 240°.

[0013] Secondly, embodiments of the present invention provide a control device for a flying shear, comprising: a distance acquisition unit, used in a hot-rolled strip steel scenario, to monitor a first distance between the tail of the first strip steel and the front guide plate of the flying shear during the shearing of the first strip steel; and a process control unit, used to control the shearing process of the second strip steel by the flying shear based on the first distance, so as to improve the shearing efficiency, wherein the second strip steel is the next strip steel adjacent to the first strip steel on the strip steel production line.

[0014] Thirdly, embodiments of the present invention provide an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method described in any of the first aspects.

[0015] The one or more technical solutions provided in the embodiments of the present invention achieve at least the following technical effects or advantages:

[0016] This invention, in a hot-rolled strip steel scenario, monitors a first distance between the tail of the first strip and the front guide plate of the flying shear during the shearing of the first strip. Based on this first distance, the shearing process of the second strip (the strip immediately following the first strip on the production line) is controlled to improve shearing efficiency. Controlling the shearing process of the second strip based on the first distance from the tail of the first strip to the front guide plate means controlling the shearing process of the second strip by the point position of the first strip, avoiding control based on the overall position of the first strip. While ensuring safe shearing, this reduces the distance between the first and second strips on the production line, allowing for rapid shearing of the second strip after the first strip is sheared, shortening the time interval between the end of tail cutting and the readiness for head cutting. Therefore, the shearing efficiency of the flying shear is improved. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart of the control method for the flying shear in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the strip steel on the production line in an embodiment of the present invention;

[0020] Figure 3 This is a functional block diagram of the control device for the flying shear in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of an electronic device in an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] In this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this invention.

[0024] This invention provides a control method for flying shears, as described in the following embodiment. Figure 1 As shown, in the scenario of hot-rolled strip steel, a flying shear control method can be applied, which includes the following steps S101~S102:

[0025] S101: In the scenario of hot-rolled strip steel, during the process of the flying shear cutting the first strip steel, the first distance between the tail of the first strip steel and the front guide plate of the flying shear is monitored.

[0026] In some implementations, monitoring the first distance between the tail of the first strip and the front guide plate of the flying shear may include monitoring the first distance via thermal detection. Specifically, the first distance refers to the distance between the tail of the first strip and the first end of the front guide plate, where the first end of the front guide plate is the end closest to the flying shear.

[0027] refer to Figure 2 As shown, the strip steel first undergoes hot inspection, then passes through the front guide plate of the flying shear, and finally reaches the flying shear. It should be noted that the flying shear can be a hot-rolled rotary drum flying shear. Hot inspection can include a first hot inspection, a second hot inspection, and an Nth hot inspection.

[0028] S102: Based on the first distance, control the process of the flying shear cutting the second strip to improve the cutting efficiency. The second strip is the next strip immediately adjacent to the first strip on the strip production line.

[0029] In some implementations, the method for implementing step S102 may include steps S1021 to S1024:

[0030] S1021: In response to the first distance increasing to a preset first distance threshold, control the front guide plate to receive the size data of the second strip steel so that the front guide plate can complete the position adjustment based on the size data.

[0031] In some implementations, controlling the dimensional data of the second strip received by the front guide plate may include controlling the length, thickness, and width of the second strip received by the front guide plate.

[0032] It should be noted that when the first distance increases to a preset first distance threshold, it indicates that the first strip has left the front guide plate and the second strip can be safely received. At this point, the front guide plate can begin adjusting its position and transferring the second strip. By determining whether the front guide plate can safely receive the second strip based on the first distance from the tail of the first strip, the distance between the first and second strips on the production line is reduced, allowing the second strip to be sheared quickly after the first strip has been sheared. Therefore, the shearing efficiency of the flying shear is improved. Furthermore, the first distance threshold ensures the safe reception of the second strip, improving safety and ensuring smooth operation.

[0033] S1022: In response to the signal that the front guide plate has completed its position adjustment, control the second strip steel to be transmitted to the front guide plate within a preset time.

[0034] It should be noted that the position of the front guide plate is adjusted based on the dimensional data in order to ensure that the front guide plate fits snugly against the strip steel, preventing the strip steel from deviating during its forward movement and during the cutting of the head and tail.

[0035] S1023: In response to the flying shear completing the tail cutting of the first strip, control the flying shear to receive the cutting length data of the second strip.

[0036] In some implementations, controlling the flying shear to receive the cutting length data of the second strip may include controlling the flying shear to receive the head length value and tail length value of the second strip.

[0037] It should be noted that after the first strip is finished being cut, the flying shear needs to be braked. In response to the completion of the first strip's cut, the flying shear should receive the cutting length data for the second strip. This prevents the flying shear from receiving the cutting length data for the second strip before the first strip is finished, ensuring the accuracy of the current shearing operation. It also avoids excessive waiting time after the first strip has been cut before controlling the flying shear to receive the cutting length data for the second strip, which would result in low shearing efficiency.

[0038] S1024: The flying shear cuts the head and tail of the second strip based on the cutting length data.

[0039] In some implementations, the flying shear cuts the head and tail of the second strip based on the cutting length data, which may include: monitoring a second distance between the head of the second strip and the flying shear, and monitoring a third distance between the tail of the second strip and the flying shear during the shearing process; if the second distance increases to the head cutting length value, the flying shear cuts the head of the second strip; if the third distance decreases to the tail cutting length value, the flying shear cuts the tail of the second strip.

[0040] In some embodiments, before the flying shear cuts the head of the second strip, the method may further include: controlling the flying shear to rotate to a head-cutting preparation position, wherein the head-cutting preparation position includes a cutting blade angle of 220°. Before the flying shear cuts the tail of the second strip, the method may further include: controlling the flying shear to rotate to a tail-cutting preparation position, wherein the tail-cutting preparation position includes a tail-cutting blade angle of 240°.

[0041] To enhance understanding of the embodiments of the present invention, the following example illustrates the process: Tracking is established starting from a scanning hot inspection point 6000mm before the flying shear, determining the accurate position of the strip tail relative to that point. When the tracking length exceeds 5000mm, the front guide plate of the flying shear is allowed to receive the set data for the next strip and begin moving to the head waiting position of the next strip. When the tracking length exceeds 7000mm, the flying shear is allowed to receive the set data for the next strip. After the flying shear ends, braking is required to determine the head position of the next strip. If the finishing mill inlet hot inspection EE23 is already loaded, it directly moves to the head-cutting waiting position 220°; otherwise, it moves to 270°.

[0042] It should be noted that the flying shear is installed in front of the descaling equipment and is used to remove the irregular parts of the head and tail of the intermediate billet. The shearing mechanism of the rotary drum flying shear consists of a pair of drums of equal diameter. The double shear blades of each drum are arranged at 90°, with one blade being concave and the other convex. It is divided into head-cutting shear and tail-cutting shear. When cutting the tail, the blade is convex on top and concave on the bottom; when cutting the head, the blade is concave on top and convex on the bottom. The actual position of the blades is measured by an absolute value encoder mounted on the gearbox. The main drive of the flying shear consists of an AC motor connected to the main reducer via a gear coupling. The output end of the main reducer is connected to the lower drum via a drum-shaped gear coupling. The upper and lower drums are connected by a synchronous gear to achieve synchronous rotation of the upper and lower shear blades.

[0043] It should be noted that in the existing technology, after the tail of the previous strip leaves the flying shear area, the primary stage receives the head and tail cutting lengths set by the secondary stage, and then performs cutting according to the control timing sequence. The flying shear has two control sequences: head cutting control sequence and tail cutting control sequence. Specifically, the head cutting control timing process is as follows: after the heat inspection EE23 belt on the intermediate roller conveyor is loaded, the head cutting blade will move to the head cutting start position of 220°; the flying shear angle has reached the head cutting waiting position; the head cutting command is triggered, and the flying shear accelerates to the cutting speed; after the flying shear angle reaches 340° (-20°), braking begins; when the transmission speed is 0, braking ends. It then returns to the initial position of 270°. Specifically, the tail-cutting control timing process is as follows: After the hot inspection EE23 on the intermediate roller conveyor is unloaded, the tail-cutting shear blade moves to the waiting position of 240° (the head-cutting shear blade is 330°); the flying shear angle has reached the tail-cutting waiting position; the tail-cutting command is triggered, the flying shear accelerates to the cutting speed, and after the flying shear head shear blade angle reaches 360°, braking begins; when the action speed is 0, braking ends; the head-cutting shear blade returns to the initial position of 270°. The flying shear can only allow the next strip to enter the flying shear area after receiving the set value, and the set data can only be received after the strip leaves the flying shear area, affecting the rolling rhythm. It takes 9 seconds for the flying shear to brake and start after tail-cutting to reach the waiting position of the next strip, and 6 seconds for the strip to move from the swaying point to the head-cutting waiting position. With increased rhythm, the flying shear may fail to cut the head due to untimely movement to the waiting position.

[0044] This invention controls the shearing process of the second strip by adjusting the distance between the tail of the first strip and the front guide plate of the flying shear. In other words, it controls the shearing process of the second strip by the point position of the first strip, avoiding the use of the overall position of the first strip to control the shearing process. While ensuring safe shearing, this reduces the distance between the first and second strips on the production line, allowing for rapid shearing of the second strip after the first strip is sheared, shortening the time interval between the end of tail cutting and the readiness for head cutting. Therefore, it improves the shearing efficiency of the flying shear.

[0045] Based on the same inventive concept, and referring to Figure 3 As shown, this embodiment of the invention provides a flying shear control device 10, including: a distance acquisition unit 110, used in the scenario of hot-rolled strip steel, to monitor the first distance between the tail of the first strip steel and the front guide plate of the flying shear during the shearing of the first strip steel; and a process control unit 120, used to control the shearing process of the second strip steel based on the first distance, so as to improve the shearing efficiency, wherein the second strip steel is the next strip steel adjacent to the first strip steel on the strip steel production line.

[0046] It is understandable that the distance acquisition unit 110 is specifically used to: monitor the first distance through thermal detection.

[0047] It is understood that the process control unit 120 includes: a size acquisition subunit, used to control the front guide plate to receive the size data of the second strip steel in response to the first distance increasing to a preset first distance threshold, so that the front guide plate completes position adjustment based on the size data; a transmission subunit, used to control the second strip steel to be transmitted to the front guide plate within a preset time in response to the signal that the front guide plate has completed position adjustment; a length acquisition subunit, used to control the flying shear to receive the cutting length data of the second strip steel in response to the flying shear completing the cutting of the tail of the first strip steel; and a shearing control subunit, used for the flying shear to cut the head and tail of the second strip steel based on the cutting length data.

[0048] Understandably, the dimension acquisition subunit is specifically used to control the length, thickness, and width of the second strip steel received by the front guide plate.

[0049] Understandably, the length acquisition subunit is specifically used to control the flying shear to receive the head and tail length values ​​of the second strip steel.

[0050] Understandably, the shearing control subunit is specifically used to: monitor a second distance between the head of the second strip and the flying shear, and a third distance between the tail of the second strip and the flying shear during the shearing process of the flying shear on the second strip; if the second distance increases to the head cutting length value, the flying shear cuts the head of the second strip; if the third distance decreases to the tail cutting length value, the flying shear cuts the tail of the second strip. Before the flying shear cuts the head of the second strip, it further includes: controlling the flying shear to rotate to the head cutting preparation position, wherein the head cutting preparation position includes a cutting blade angle of 220°. Before the flying shear cuts the tail of the second strip, it further includes: controlling the flying shear to rotate to the tail cutting preparation position, wherein the tail cutting preparation position includes a cutting blade angle of 240°.

[0051] It should be understood that further implementation details of the flying shear control device 10 in the embodiments of the present invention are as described in the aforementioned flying shear control method, and will not be repeated here for the sake of brevity.

[0052] Based on the same inventive concept, embodiments of the present invention also provide an electronic device, such as... Figure 4 As shown, it includes a memory 404, a processor 402, and a computer program stored in the memory 404 and executable on the processor 402. The processor 402 executes the program to implement the steps described in any embodiment of the flying shear control method.

[0053] Among them, Figure 4In this document, a bus architecture (represented by bus 400) is used. Bus 400 may include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 402 and memory represented by memory 404. Bus 400 may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 405 provides an interface between bus 400 and receiver 401 and transmitter 403. Receiver 401 and transmitter 403 may be the same element, i.e., a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 402 is responsible for managing bus 400 and general processing, while memory 404 can be used to store data used by processor 402 during operation.

[0054] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and embodiments are within the scope and spirit of this invention and the appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Furthermore, the functional units can be integrated into a single processing unit, or each unit can exist physically separately, or two or more units can be integrated into a single unit.

[0055] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0056] The units described as separate components may or may not be physically separate. Similarly, the components of the control device may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0057] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0058] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A control method of a flying shear, characterized by, include: In the scenario of hot-rolled strip steel, during the process of the flying shear cutting the first strip steel, the first distance between the tail of the first strip steel and the front guide plate of the flying shear is monitored; Based on the first distance, the process of the flying shear cutting the second strip is controlled to improve the cutting efficiency. The second strip is the next strip immediately adjacent to the first strip on the strip production line. The step of controlling the cutting process of the flying shear on the second strip steel based on the first distance includes: in response to the first distance increasing to a preset first distance threshold, controlling the front guide plate to receive the size data of the second strip steel so that the front guide plate completes position adjustment based on the size data; in response to the signal that the front guide plate has completed position adjustment, controlling the second strip steel to be transmitted to the front guide plate within a preset time; in response to the flying shear completing the tail cutting of the first strip steel, controlling the flying shear to receive the cutting length data of the second strip steel; and the flying shear cutting the head and tail of the second strip steel based on the cutting length data.

2. The control method of the flying shear according to claim 1, characterized by, The monitoring of the first distance between the tail of the first strip and the front guide plate of the flying shear includes: The first distance is monitored by thermal detection.

3. The control method for flying shears according to claim 1, characterized in that, The control of the front guide plate to receive the dimensional data of the second strip includes: The front guide plate is controlled to receive the length, thickness, and width of the second strip steel.

4. The control method for flying shears according to claim 3, characterized in that, The control of the flying shear to receive the cutting length data of the second strip includes: The flying shear is controlled to receive the head length and tail length values ​​of the second strip steel.

5. The control method for flying shears according to claim 4, characterized in that, The flying shear, based on the cutting length data, performs head and tail cutting on the second strip steel, including: During the process of the flying shear cutting the second strip, a second distance between the head of the second strip and the flying shear is monitored, and a third distance between the tail of the second strip and the flying shear is monitored. If the second distance increases to the cutting length value, the flying shear cuts the second strip. If the third distance decreases to the tail-cutting length value, the flying shear cuts the tail of the second strip.

6. The control method for flying shears according to claim 5, characterized in that, Before the flying shear cuts the second strip, the method further includes: Control the flying shear to rotate to the cutting head preparation position, wherein the cutting head preparation position includes the cutting head blade angle of the flying shear being 220°.

7. The control method for flying shears according to claim 5, characterized in that, Before the flying shear cuts the tail of the second strip, the method further includes: Control the flying shear to rotate to the tail-cutting preparation position, wherein the tail-cutting preparation position includes the tail-cutting blade angle of the flying shear being 240°.

8. A control device for flying shears, characterized in that, include: The distance acquisition unit is used in the scenario of hot-rolled strip steel to monitor the first distance between the tail of the first strip steel and the front guide plate of the flying shear during the shearing process of the first strip steel. A process control unit is configured to control the cutting process of the flying shear on the second strip steel based on the first distance, so as to improve the cutting efficiency. The second strip steel is the next strip steel immediately adjacent to the first strip steel on the strip steel production line. The step of controlling the cutting process of the flying shear on the second strip steel based on the first distance includes: responding to the first distance increasing to a preset first distance threshold, controlling the front guide plate to receive the size data of the second strip steel, so that the front guide plate completes position adjustment based on the size data; responding to a signal indicating that the front guide plate has completed position adjustment, controlling the second strip steel to be transmitted to the front guide plate within a preset time; responding to the flying shear completing the tail cutting of the first strip steel, controlling the flying shear to receive the cutting length data of the second strip steel; and the flying shear performing head and tail cutting on the second strip steel based on the cutting length data.

9. An electronic device, comprising: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method of any one of claims 1-7.

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