Strip steel production method, control module, computer readable medium and descaling system

Abstract

The invention discloses a strip steel production method, which is used for a control module of a descaling system, and comprises the following steps of: uncoiling a current coil of strip steel by utilizing uncoiling after the tail part of a previous coil of strip steel leaves an uncoiling machine; after the head of the current coil of strip steel runs to the pre-stored length of the plate shearing machine, the current coil of strip steel is sheared through the plate shearing machine, and the real-time position of the head of the sheared current coil of strip steel is obtained; controlling the working states of a scale breaker and a descaling unit according to the real-time position of the head of the current coiled strip steel; under the condition that the real-time position information of the sheared head of the current coil of strip steel indicates that the head of the current coil of strip steel runs to a coiling machine through a scale breaker and a descaling unit, the scale breaker is controlled to be started in response to a detection signal representing that tension is established by the current strip steel; and after the tail part of the current strip steel leaves the uncoiler, the uncoiler is used for uncoiling the next coil of strip steel, and the process is repeated, so that the overall working efficiency is improved, the productivity is increased, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of strip steel descaling, and in particular to a strip steel production method, a control module, a computer-readable medium and a descaling system. Background Art

[0002] From the loading of coiled strip steel, it is basically dependent on the operator to manually operate the corresponding equipment based on actual experience and proficiency. Moreover, during the equipment threading process, the operator is required to coordinate the operation of different equipment to ensure the synchronization of equipment operation and avoid problems or accidents.

[0003] Moreover, in order to reduce the complexity of equipment processes and lower the risk of misoperation, some equipment manufacturers wait for the previous steel coil to be wound before starting to thread the next steel coil. This wastes a lot of time and seriously affects work efficiency, resulting in reduced production capacity and higher costs. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art to a certain extent. To this end, the present invention provides a steel coil descaling process, which can continuously descale the strip steel without waiting for the previous strip steel to be processed, thereby improving work efficiency.

[0005] In order to achieve the above object, the first aspect of the present invention discloses a strip steel production method, a control module for a descaling system, the descaling system comprising an uncoiler, a shearing machine, a descaling machine, a descaling unit and a coiler arranged in sequence along the advancing direction of the strip steel, and the production method comprises the following steps: After the tail of the previous coil of steel strip leaves the uncoiler, the current coil of steel strip is uncoiled by using the uncoiler; After the head of the current steel coil runs to the shearing machine to a pre-stored length, the current steel coil is sheared by the shearing machine to obtain the real-time position of the head of the current steel coil after shearing; Controlling the working state of the scale breaker and the descaling unit according to the real-time position of the current coil steel head; When the real-time position information of the head of the current coil steel after the shearing indicates that the head of the current coil steel runs to the coiler via the descaling machine and the descaling machine unit, in response to the detection signal representing the tension established by the current strip steel, the descaling machine is controlled to operate; When the tail of the current steel strip leaves the uncoiler, the uncoiler is used to uncoil the next coil of steel strip.

[0006] Optionally, controlling the working state of the scale breaker and the descaling unit according to the real-time position of the current coil steel head includes: After the plate shearing machine shears the current coil steel, the roll gap of the working roll box of the scale breaker is controlled to open, and the scale breaker does not work; When the real-time position of the head of the current coil steel indicates that the head of the current coil steel is at a preset distance from the descaling machine, the descaling machine unit is controlled to be in an on state.

[0007] Optionally, a rough leveler is provided upstream of the scale breaker, and a fine leveler is provided downstream of the scale breaker; after the tail of the current strip leaves the uncoiler, the method further includes: After the tail of the current steel strip passes through the rough leveling machine, controlling the roll gap of the roll box of the rough leveling machine to open; After the tail of the current steel strip passes through the scale breaker, the roll gap of the working roll box of the scale breaker is controlled to open, and the scale breaker does not work; After the tail of the steel strip passes through the finishing machine, the roll gap of the roll box of the finishing machine is controlled to open.

[0008] Optionally, when the real-time position information of the head of the current coil steel strip after the shearing indicates that the head of the current coil steel strip is run to the coiler via a scale breaker and a descaling unit, after responding to a detection signal characterizing the establishment of tension of the current strip steel, the method further includes: controlling the strip steel to run at a first speed; After the tail of the current steel strip leaves the uncoiler, the method further includes: controlling the steel strip to run at a second speed, wherein the second speed is less than the first speed.

[0009] Optionally, when the steel strip runs at a first speed, the ejection motor of the descaling unit is controlled to run at a first speed; when the steel strip runs at a second speed, the ejection motor of the descaling unit is controlled to run at a second speed; the speed of the ejection motor of the descaling unit is positively correlated with the running speed of the steel strip, and the smaller the running speed of the steel strip, the smaller the speed of the ejection motor of the descaling unit.

[0010] Optionally, controlling the strip steel to run at a first speed includes: The uncoiler, rough straightener, fine straightener and coiler are controlled to run at the first speed at the same time, and the speed feedback from the fine straightener is compared with the first speed to obtain a speed difference, and the speeds of the uncoiler, rough straightener, fine straightener and coiler are controlled according to the speed difference.

[0011] Optionally, a first centering device is provided between the descaling machine and the fine straightening machine, an inlet pinch roller is provided between the fine straightening machine and the descaling unit, and a second centering device and an outlet pinch roller are provided in sequence between the descaling unit and the coiling machine; When the real-time position information of the head of the current coil steel after the shearing indicates that the head of the current coil steel runs to the coiler via the descaling machine and the descaling machine unit, in response to the detection signal characterizing the tension established by the current strip steel, after the descaling machine is controlled to work, the method further includes: controlling the deviation correction rollers of the first centering device and the second centering device to open; When the tail of the current strip leaves the uncoiler, it also includes: after the tail of the strip passes through the entrance pinch roller, controlling the roll gap of the entrance pinch roller to open; after the tail of the strip passes through the exit pinch roller, controlling the roll gap of the exit pinch roller to open.

[0012] The second aspect of the present invention discloses a control module, comprising: one or more processors; a memory on which one or more computer programs are stored, and when the one or more computer programs are executed by the one or more processors, the one or more processors implement the strip steel production method provided by the first aspect of the present invention.

[0013] The third aspect of the present invention discloses a computer-readable medium having a computer program stored thereon, and when the computer program is executed by a processor, the strip steel production method provided by the first aspect of the present invention is implemented.

[0014] The fourth aspect of the present invention discloses a descaling system for descaling strip steel, comprising an uncoiler, a shearing machine, a scale breaker, a descaling unit and a coiler arranged in sequence along the forward direction of the strip steel, and the descaling system also includes a control module provided in the first aspect of the present invention.

[0015] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. The best embodiments or means of the present invention will be described in detail in conjunction with the drawings, but they are not intended to limit the technical solutions of the present invention. In addition, there are multiple features, elements, and components that appear in each of the following texts and drawings, and different symbols or numbers are marked for convenience, but they all represent components with the same or similar structures or functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings: Figure 1 It is a flowchart of the production method of the present invention.

[0017] Figure 2 It is a side view layout diagram of the descaling system of the present invention.

[0018] Figure 3 It is a top view of the descaling system of the present invention.

[0019] Among them, 1. Cantilever uncoiler; 2. Rough leveling machine; 3. Shearing machine; 4. Scale breaking machine; 5. First centering device; 6. Fine leveling machine; 7. First transition roller; 8. Head bending machine; 9. Second transition roller; 10. Inlet pinch roller; 11. Scale removal unit; 12. Second centering device; 13. Exit pinch roller; 14. Observation roller; 15. First tension roller; 16. Second tension roller; 17. Oiling machine; 18. Third centering device; 19. Steering pinch roller; 20. Coiler; 21. Loading trolley; 22. Unloading trolley. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments in the implementation manner are intended to be used to explain the present invention and should not be construed as limiting the present invention.

[0021] References in this specification to "one embodiment" or "an example" or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment of the present patent disclosure. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0022] In the related technology, starting from the loading of steel coils, the operators basically rely on the manual operation of the corresponding equipment based on their actual experience and proficiency. Moreover, during the process of threading the equipment, the operators need to coordinate the operation of different equipment to ensure the synchronization of equipment operation and avoid problems or accidents. Moreover, in order to reduce the complexity of equipment process and reduce the risk of misoperation, some equipment manufacturers wait for the previous steel coil to be wound before starting the threading of the next steel coil, which wastes a lot of time and seriously affects work efficiency, resulting in reduced production capacity and higher costs.

[0023] In view of this, see Appendix Figure 1 One embodiment of the present invention discloses a strip steel production method, a control module for a descaling system, the descaling system comprising an unwinder, a shearing machine, a descaling machine, a descaling unit and a coiler arranged in sequence along the advancing direction of the strip steel, the production method comprising the following steps: S10, after the tail of the previous coil of steel strip leaves the uncoiler, uncoiling the current coil of steel strip by using an uncoiler; S20, after the head of the current steel coil runs to the shearing machine to a pre-stored length, the current steel coil is sheared by the shearing machine, and the real-time position of the head of the current steel coil after shearing is obtained; S30, controlling the working state of the scale breaker and the descaling unit according to the real-time position of the current coil steel head, specifically including: S31, after the plate shearing machine shears the current coil steel, the roll gap of the working roll box of the scale breaker is controlled to open, and the scale breaker does not work; S32. When the real-time position of the head of the current steel coil indicates that the head of the current steel coil is at a preset distance from the descaling machine, the descaling machine unit is controlled to be in an on state.

[0024] S40, when the real-time position information of the head of the current coil steel after the shearing indicates that the head of the current coil steel runs to the coiler via the descaling machine and the descaling machine unit, in response to the detection signal indicating the tension established by the current strip steel, controlling the descaling machine to operate; S50. After the tail of the current steel strip leaves the uncoiler, the uncoiler is used to uncoil the next roll of steel strip, and the process is repeated.

[0025] In order to further improve the efficiency of the strip in the strip threading process, as one of the achievable embodiments of the present invention, the process of running the strip from the uncoiler to the coiler and establishing tension at the head of the strip specifically includes: The current strip steel is uncoiled by the uncoiler, and after being uncoiled, the current strip steel passes through a rough leveler, a shearing machine, a scale breaker, a first centering device, a fine leveler, an entrance pinch roller, a scale removal unit, a second centering device, an exit pinch roller, and a coiler in sequence; After the head of the current strip steel passes through the shearing machine, the roll gap of the working roll box of the descaling machine is controlled to open to a first preset value, and the descaling machine does not work, that is, the descaling machine does not participate in descaling; When the head of the current steel strip is at a preset distance from the descaling machine, the descaling unit is controlled to operate; the preset distance is set at 2-5 meters.

[0026] When the head of the current strip steel runs to the coiler, and the current strip steel is coiled on the coiler for 2-3 turns, a detection signal for establishing tension of the current strip steel is triggered; In response to a detection signal characterizing the tension established in the current strip, the scale breaker is controlled to work (the roll gap of the working roll box of the scale breaker returns to a second preset value, and the first preset value is greater than the second preset value), the scale breaker participates in scale breaking, and the current strip is controlled to run at a first speed, and the correcting rollers of the first and second centering devices are controlled to automatically open after the strip is threaded, until the next roll of strip is unrolled, and the correcting rollers center the next roll of strip according to a preset width range.

[0027] After the tail of the strip passes through the rough leveling machine, controlling the roller box of the rough leveling machine to open; After the tail of the strip passes through the scale breaker, the working roll box of the scale breaker is controlled to open, and the scale breaker stops working; After the tail of the steel strip passes through the fine leveling machine, the roller box of the fine leveling machine is controlled to open.

[0028] After the tail of the strip passes through the entrance pinch roller, controlling the roller gap of the entrance pinch roller to open; After the tail of the strip passes through the exit pinch roller, the roller gap of the exit pinch roller is controlled to open.

[0029] In an achievable embodiment, after the head of the current steel coil runs to the shearing machine to a pre-stored length, the current steel coil is sheared by the shearing machine, and the real-time position of the head of the current steel coil after shearing is obtained, including: The real-time position of the head of the current coil steel after shearing is calculated by using a measuring wheel counter or an encoder arranged on the shearing machine.

[0030] In this embodiment, in step S40, when the real-time position information of the head of the current coil steel after the shearing indicates that the head of the current coil steel runs to the coiler via the descaling machine and the descaling machine unit, in response to the detection signal characterizing the tension established by the current strip steel, after controlling the descaling machine to work, the method further includes: S41. Control the strip to run at a first speed; specifically, control the uncoiler, rough straightener, fine straightener and coiler to run at the first speed at the same time, and compare the speed feedback from the fine straightener with the first speed to obtain a speed difference, and control the speeds of the uncoiler, rough straightener, fine straightener and coiler according to the speed difference.

[0031] S42, after the tail of the current steel strip leaves the uncoiler, the method further includes: controlling the steel strip to run at a second speed, wherein the second speed is less than the first speed.

[0032] When the steel strip runs at a first speed, the ejection motor of the descaling unit is controlled to run at a first speed; when the steel strip runs at a second speed, the ejection motor of the descaling unit is controlled to run at a second speed; the speed of the ejection motor of the descaling unit is positively correlated with the running speed of the steel strip, and the smaller the running speed of the steel strip, the smaller the speed of the ejection motor of the descaling unit.

[0033] In this embodiment, the weight, width, thickness, material, etc. of the steel strip can be obtained, and the theoretical length of the steel coil can be generated simultaneously by dividing the total weight by the density, width and thickness. After the head of the steel strip runs from the uncoiler to the coiler and the tension is established, the steel strip is controlled to run at a first speed, specifically within the range of 0-300 meters per minute. When the remaining length of the current steel strip in the uncoiler is less than 5-100 meters, the steel strip is controlled to run at a second speed, specifically within the range of 0-30 meters per minute. The main purpose is to reduce the tail swing speed to prevent damage to the equipment during tail swing.

[0034] As a second aspect of the present invention, a control module is provided, comprising: one or more processors; a memory on which one or more computer programs are stored, and when the one or more computer programs are executed by the one or more processors, the one or more processors implement the strip steel production method provided according to the first aspect of the present invention.

[0035] The control module may also include one or more I / O interfaces connected between the processor and the memory and configured to implement information interaction between the processor and the memory.

[0036] Among them, the processor is a device with data processing capabilities, including but not limited to a central processing unit, etc.; the memory is a device with data storage capabilities, including but not limited to random access memory, read-only memory, electrically erasable programmable read-only memory, and flash memory; the I / O interface is connected between the processor and the memory, and can realize information exchange between the processor and the memory, including but not limited to a data bus, etc.

[0037] The processor, memory and I / O interface are connected to each other through a bus, and further connected to other components of the control module.

[0038] As a third aspect of the present invention, a computer-readable medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the strip steel production method provided by the first aspect of the present invention is implemented.

[0039] As a fourth aspect of the present invention, a descaling system is provided for descaling strip steel, comprising an uncoiler 1, a rough leveler 2, a shearing machine 3, a scale breaker 4, a centering device, a fine leveler 6, a descaling unit and a coiler 20, which are arranged in sequence along the forward direction of the strip steel. The descaling system also includes a control module and a human-computer interaction device. The shearing machine 3 is provided with a measuring wheel counter, which can detect the running distance of the head of the strip steel and send a detection signal representing the running distance of the head of the strip steel to the control module. The human-computer interaction device can send the length information of the strip steel to the control module.

[0040] In other embodiments, the descaling system, such as Figure 2 and 3 As shown, the descaling production line includes a cantilever uncoiler 1, a descaling unit 11 and a coiler 20. The cantilever uncoiler 1 is arranged at the upstream end of the descaling unit 11, and a roughing machine 2, a shearing machine 3, a scale breaker 4, a first centering device 5, a fine adjustment machine 6, a first transition roller 7, a head bending machine 8, a second transition roller 9 and an entrance pinch roller 10 are sequentially arranged between the cantilever uncoiler 1 and the descaling unit 11; the coiler 20 is arranged at the downstream end of the descaling unit 11, and a second centering device 12, a pinch roller 13, an observation roller 14, a first tension roller 15, a second tension roller 16, an oiling machine 17, a third centering device 18 and a steering pinch roller 19 are sequentially arranged between the descaling unit 11 and the coiler 20. The descaled strip is conveyed from the coiler 20 by a unloading trolley 22, and the strip is conveyed to the uncoiler 1 by a loading trolley 21. The shearing machine 3 is provided with a measuring wheel counter, which can detect the running distance of the head of the strip and send a detection signal representing the running distance of the head of the strip to the control module. The human-computer interaction device can send the length information of the strip to the control module.

[0041] The steel strip descaling process combined with the above descaling system is as follows: first, the operator needs to input the basic information of the steel strip, such as the weight, width, thickness, material, etc. of the steel strip, into the operation interface of the human-computer interaction device and transmit it to the control module; at the same time, the theoretical length of the steel strip is generated, which can be calculated by dividing the total weight by the density, width and thickness. Then the following operations are performed: During the strip threading process, the coiled strip stored on the saddle is transported to the uncoiler through the loading trolley 21, and the strip head is introduced into the pinch roller and the rough leveler. The rough leveler generates the downward pressure according to the strip information. The strip head passing through the rough leveler generally has a circular arc bend and the thickness of the head is uneven, so it needs to be sheared by the shearing machine to remove the waste. At the same time, since the strip head is cut at the shearing machine, the position of the strip head is exactly equal to the position of the shearing machine blade. Therefore, the distance that the strip head continues to be transported forward can be tracked by counting the measuring wheel. After the strip head passes through the centering device, the centering device positions the deviation correction wheel through the preset steel strip width (generally steel strip width + 4-10mm); because the descaling machine does not work during the strip threading process, it is in an automatic opening device to facilitate the strip head to pass through, without the need for the operator to manually open it, so as to save time; after passing through the descaling machine, the strip head continues to move forward and enters the fine straightening machine, which automatically presses down according to the strip information; when the strip thickness is ≤3mm, the strip head automatically stops threading and bends the strip head when it passes through the material head bending machine 200mm. The strip passes through the material head bending machine and continues to pass through the pinch roller. To ensure safety, the upper roller is in an open device when the material head does not pass through the pinch roller. After the material head passes through the pinch roller, the upper roller automatically presses down and rotates synchronously with the strip to provide power for the steel strip to be transported forward.

[0042] Since it takes about 15-30 seconds to start the EPS unit, in order to avoid waiting before the steel belt enters the EPS unit or uneven descaling of the belt head, the EPS unit is automatically started when the belt head is 2-5 meters away from the entrance of the EPS unit. At the same time, the internal pinch rollers of the EPS unit are pressed down in sequence after the belt head passes through, so as to avoid problems such as uneven belt heads and pinch roller carding; the belt threading rod inside the EPS unit is automatically opened and closed according to the position of the belt head (the so-called opening means that the belt threading rod is parallel to the conveying direction of the steel belt and can hold the steel belt; closing means that after the belt head passes through, the belt threading rod is at a certain angle to the conveying direction of the steel belt to avoid the ejection area and avoid the loss of the belt threading rod) After the belt head passes through the EPS unit, there are subsequent processes such as surface cleaning, squeezing and drying. In order to save equipment energy consumption, surface cleaning is also turned on after the belt head approaches (usually 2-5 meters). After the belt head is cleaned and passes through the squeezing roller, the squeezing roller is pressed down to reduce the residual moisture on the steel belt surface. When the belt head enters the drying station, the edge drying automatically enters the corresponding width position according to the bandwidth and dries the edge of the steel belt; the surface drying air knife starts blowing, and after the belt head passes through the air dryer, the top air knife is lowered to get close to the surface of the steel belt to obtain a better drying effect on the surface of the steel belt; the belt head passing through the dryer enters the pinch roller, centering device and other equipment. The centering is mainly because when the steel belt passes through the descaling unit, the descaling unit has no centering device, and the belt head may have the problem of deviation; pinching is to provide better forward power for the belt head to continue to be transported forward; A tension machine is set up after the pinch roller. Its main purpose is to provide a large reverse tension required for winding when the steel strip is tailing off. The oiler can apply oil or no oil to the surface of the descaled steel strip according to different needs (the oiling is mainly to prevent the surface of the steel strip from rusting after a long time). The strip head enters the strip turning and pinching device. After the strip head is turned, it passes through the guide plate and enters the winder. After the strip head enters the winder jaws and is clamped, the winder shaft core rotates at a speed synchronized with the steel strip conveying. After 2-5 turns, the winder speeds up and tightens the strip. At this point, the strip is threaded, and the strip head is tightened in the winder, and the steel strip is in a continuous operation state.

[0043] It should be noted that when the strip is threaded, if the descaling process section is an acid-free descaling process such as dry shot blasting or wet sand blasting, the descaling efficiency is affected by the speed of the projectiles, steel sand, working fluid, etc. or the total amount of projectiles. It is known that the speed during the threading process is 30% or more slower than the normal operation. In order to save the consumption of projectiles and the energy consumption of projectile motors or other motors used for material circulation equipment, the projectile speed can be reduced by a corresponding proportion or the projectile amount can be reduced by a corresponding proportion; After the steel coil is threaded, the same or similar steel coil specifications are automatically matched according to the thickness, width and material of the steel coil input by the HMI, as well as the production records automatically recorded in the system before (for example, the specification of the steel coil threaded is 2X1200, the material is Q235, and the threading speed is 15 meters / minute; according to the system records, after the normal establishment of this specification, the descaling speed with descaling is 50 meters / minute, and the speed without descaling is 35 meters / minute. The system automatically and quickly adjusts the steel strip speed to the speed in the operation record according to the descaling machine input situation); in order to reduce the problem of uneven descaling or poor descaling quality of the steel coil, the automatic increase speed can be 80% of the system record; During normal operation, the straightener, scale breaker, winder, tension roller, etc. automatically perform corresponding actions according to the preset specifications of the strip (mainly thickness, width, strength and other parameters). The uncoiler changes from actively feeding the strip forward during strip threading to passively pulling the strip backward and providing a certain reverse tension to keep the strip in a certain extension state, thereby ensuring the straightening or scale breaking effect of the strip.

[0044] For example, when the thickness of the strip is ≤5mm, the working roller of the descaling machine is automatically pressed down to the preset position. At this time, the winder, tension roller, pinch roller, and fine leveler increase the tension on the outlet side of the descaling machine, while the unwinder and rough leveler are in the reverse tensioning state, so as to obtain better steel strip straightening and descaling effects (descaling is mainly to increase the descaling speed). When the winder is continuously reeling, the entire tension of the system is in a balanced and stable state, and the operating speed will be automatically adjusted dynamically according to the quality of the descaling process section and the detection device at the back end of the process section to ensure the consistency of descaling quality and improve work efficiency.

[0045] As the strip is continuously running and processed, the system will automatically record the length of the strip that has been running and the remaining length of the strip. Generally, when there are 30-50 meters left in the uncoiler, the system will automatically slow down. The main purpose is to reduce the speed of the tail swinging and prevent damage to the equipment during the tail swinging. For example, during normal operation, the speed is 50-80 meters / minute. When the system detects that there are 50 meters of strip left in the uncoiler, it will automatically slow down to ensure that the speed is 10-20 meters / minute when the final coil is detached from the uncoiler. Since it is known that the operation of the descaling machine is to increase the speed of descaling, and descaling is no longer necessary after the descaling begins, therefore, when the speed is about to be 30% or more slower than the fastest speed, the descaling machine will slowly open to the maximum state and will not participate in descaling. At this time, the tension system will reduce the tension of the entire line according to the set requirements.

[0046] In the strip tail swinging stage, when the strip is detached from the uncoiler, it belongs to the strip tail swinging stage. At this time, the scale breaker is in the open state, and the rough leveler and the fine leveler are in the working state. At this time, the rough leveler and the fine leveler provide forward tension, which is opposite to the winder, to ensure the tension during winding.

[0047] When the coil tail passes through the rough leveler and the fine leveler respectively, the roller boxes of the rough leveler and the fine leveler are automatically opened to facilitate the next strip coil head to pass through the equipment. At this time, the tension machine is in a downward pressing and tensioning state to ensure that the steel strip is tensioned during winding.

[0048] To improve work efficiency, when the previous strip just comes off the uncoiler, the subsequent strip is already in place on the loading trolley and starts to be loaded into the uncoiler to save time.

[0049] Preferably, the strip tail swinging speed is faster than the strip threading speed, thereby avoiding the influence of the strip tail swinging process on the strip threading process.

[0050] The present invention can improve work efficiency, and the equipment is automatically implemented, reducing the dependence on the proficiency of the operator. In particular, it can shorten the time of strip head threading and tail swinging, which are two stages in which the equipment has relatively low work efficiency, thereby increasing the time proportion of the normal stage of the equipment and improving production capacity and efficiency.

[0051] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A method for producing strip steel, a control module for a descaling system, wherein the descaling system comprises an unwinder, a shearing machine, a descaling machine, a descaling unit and a coiler arranged in sequence along the advancing direction of the strip steel, characterized in that: The production method comprises the following steps: After the tail of the previous coil of steel strip leaves the uncoiler, the current coil of steel strip is uncoiled by using the uncoiler; After the head of the current steel coil runs to the shearing machine to a pre-stored length, the current steel coil is sheared by the shearing machine to obtain the real-time position of the head of the current steel coil after shearing; Controlling the working state of the scale breaker and the descaling unit according to the real-time position of the current coil steel head; When the real-time position information of the head of the current coil steel after the shearing indicates that the head of the current coil steel runs to the coiler via the descaling machine and the descaling machine unit, in response to the detection signal representing the tension established by the current strip steel, the descaling machine is controlled to operate; When the tail of the current steel strip leaves the uncoiler, the uncoiler is used to uncoil the next coil of steel strip.

2. The strip steel production method according to claim 1, characterized in that: The controlling the working state of the scale breaker and the descaling unit according to the real-time position of the current coil steel head comprises: After the plate shearing machine shears the current coil steel, the roll gap of the working roll box of the scale breaker is controlled to open, and the scale breaker does not work; When the real-time position of the head of the current coil steel indicates that the head of the current coil steel is at a preset distance from the descaling machine, the descaling machine unit is controlled to be in an on state.

3. The strip steel production method according to claim 1, characterized in that: A rough leveler is arranged upstream of the scale breaker, and a fine leveler is arranged downstream of the scale breaker; after the tail of the current strip leaves the uncoiler, the method further comprises: After the tail of the current steel strip passes through the rough leveling machine, controlling the roll gap of the roll box of the rough leveling machine to open; After the tail of the current steel strip passes through the scale breaker, the roll gap of the working roll box of the scale breaker is controlled to open, and the scale breaker does not work; After the tail of the steel strip passes through the finishing machine, the roll gap of the roll box of the finishing machine is controlled to open.

4. The strip steel production method according to claim 3, characterized in that: When the real-time position information of the head of the current coil steel after the shearing indicates that the head of the current coil steel runs to the coiler via the scale breaker and the descaling unit, in response to the detection signal characterizing the tension established by the current strip steel, the method further includes: controlling the strip steel to run at a first speed; After the tail of the current steel strip leaves the uncoiler, the method further includes: controlling the steel strip to run at a second speed, wherein the second speed is less than the first speed.

5. The strip steel production method according to claim 4, characterized in that: When the steel strip runs at a first speed, the ejection motor of the descaling unit is controlled to run at a first speed; when the steel strip runs at a second speed, the ejection motor of the descaling unit is controlled to run at a second speed; the speed of the ejection motor of the descaling unit is positively correlated with the running speed of the steel strip, and the smaller the running speed of the steel strip, the smaller the speed of the ejection motor of the descaling unit.

6. The strip steel production method according to claim 3, characterized in that: The step of controlling the steel strip to run at a first speed comprises: The uncoiler, rough straightener, fine straightener and coiler are controlled to run at the first speed at the same time, and the speed feedback from the fine straightener is compared with the first speed to obtain a speed difference, and the speeds of the uncoiler, rough straightener, fine straightener and coiler are controlled according to the speed difference.

7. The strip steel production method according to claim 3, characterized in that: A first centering device is arranged between the descaling machine and the fine straightening machine, an inlet pinch roller is arranged between the fine straightening machine and the descaling unit, and a second centering device and an outlet pinch roller are arranged in sequence between the descaling unit and the coiling machine; When the real-time position information of the head of the current coil steel after the shearing indicates that the head of the current coil steel runs to the coiler via the descaling machine and the descaling machine unit, in response to the detection signal characterizing the tension established by the current strip steel, after the descaling machine is controlled to work, the method further includes: controlling the deviation correction rollers of the first centering device and the second centering device to open; When the tail of the current strip leaves the uncoiler, it also includes: after the tail of the strip passes through the entrance pinch roller, controlling the roll gap of the entrance pinch roller to open; after the tail of the strip passes through the exit pinch roller, controlling the roll gap of the exit pinch roller to open.

8. A control module, characterized in that: include: one or more processors; A memory having one or more computer programs stored thereon, wherein when the one or more computer programs are executed by the one or more processors, the one or more processors implement the strip steel production method according to any one of claims 1 to 7.

9. A computer readable medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the strip steel production method according to any one of claims 1 to 7 is implemented.

10. A descaling system for descaling strip steel, comprising an unwinder, a shearing machine, a descaling machine, a descaling machine unit and a coiler arranged in sequence along the advancing direction of the strip steel, characterized in that: The descaling system further comprises a control module as claimed in any one of claims 1 to 7.

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