Method and device for uncoiling a steel coil

Abstract

The application discloses a kind of steel coil loose coil processing method and device, processing method is by in inner ring loose coil or there is the target steel coil of risk of loose coil when being transported by coil transport car, receive the position signal of coil transport car, whether the target position of preset is reached according to position signal, locking signal is triggered when coil transport car reaches target position, and according to locking signal control coil transport car stop moving, after coil transport car stops moving, it is explained that the conditions for welding processing are provided to target steel coil, then the inner ring band head of target steel coil is spot welded and fixed, spot welding has good inhibitory effect on inner coil loose coil, to improve the reliability of steel coil inner ring loose coil processing;Since the inner ring of target steel coil is no longer loose coil, the inner ring can be reduced in the process of flattening and opening the wound to appear injury, scratch problem, to reduce the cutting loss rate of target steel coil, improve the yield of target steel coil.

Description

Technical Field

[0001] This invention relates to the technical field of steel coil loosening treatment, and more particularly to a method and apparatus for treating steel coil loosening. Background Technology

[0002] Extremely thin steel coils, due to their thin strip thickness, often experience issues such as inner coil collapse and loosening after uncoiling from the coiler. This not only affects the feeding of the leveling machine but also the misalignment of the inner coil during the uncoiling process, easily causing defects like abrasions and scratches, thus impacting production efficiency. Existing technologies only control abrasions through the leveling process or alleviate coil loosening through the coiler, but the control effect is not ideal, especially for extremely thin steel coils below 1.2mm. These methods cannot completely solve the loosening problem and significantly impact the production efficiency and cost of the leveling process.

[0003] Therefore, improving the reliability of the inner coil loosening process for steel coils is a technical problem that urgently needs to be solved. Summary of the Invention

[0004] The present invention provides a method and apparatus for treating loose coils of steel coils, which improves the reliability of the treatment of loose coils in the inner ring of steel coils.

[0005] The embodiments of the present invention provide the following solutions:

[0006] In a first aspect, embodiments of the present invention provide a method for processing loosened steel coils, the method comprising:

[0007] Receive the position signal of the target steel coil being transported by the coil transport vehicle, wherein the target steel coil is a steel coil with an uncoiled inner ring or a risk of uncoiling;

[0008] Determine whether the coil transport vehicle has reached the preset target position based on the position signal;

[0009] When the coil transport vehicle reaches the target position, a locking signal is triggered, and the coil transport vehicle is controlled to stop moving according to the locking signal;

[0010] After the coil transport vehicle stops moving, the inner ring of the target steel coil is spot-welded to fix it.

[0011] In an optional embodiment, before receiving the position signal of the target steel coil transported by the coil transport vehicle, the method further includes:

[0012] Obtain the strip thickness and carbon content of the steel coils loaded on the transport vehicle;

[0013] When the thickness of the strip is not greater than a preset thickness and the carbon content of the strip is within a preset carbon content range, the loaded steel coil is determined to be a target steel coil with a risk of loosening.

[0014] In one optional embodiment, the preset thickness is 1.2 mm, and the preset carbon content range is 0.03-0.05%.

[0015] In one optional embodiment, the target steel coil is a loosely coiled inner ring; spot welding is performed on the inner ring of the target steel coil to fix it, including:

[0016] Control the coiling tool to move to the inner ring of the target steel coil;

[0017] The coiling tool applies a preset pressure to the target area of ​​the inner ring of the steel coil to press the loosely coiled strip into place. The target area is the middle area of ​​the inner ring of the steel coil that is more than a preset distance from the two sides.

[0018] Spot welding is performed on the inner ring of the target area to generate a predetermined number of fixed weld points in the target area.

[0019] In one optional embodiment, spot welding the inner ring head of the target area includes:

[0020] Obtain the strip thickness and yield strength of the target steel coil;

[0021] When the thickness of the strip is not less than the thickness range and the yield strength is less than the preset strength range, 1-2 fixed weld points are spot welded to the inner ring strip head according to the preset first welding current.

[0022] When the thickness of the strip is not less than the thickness range and the yield strength is within the strength range, one fixed weld point is spot welded to the inner ring strip head according to the preset second welding current, wherein the second welding current is greater than the first welding current;

[0023] When the thickness of the strip is less than the thickness range and the yield strength is less than the strength range, two fixed weld points are spot welded to the inner ring strip head according to the first welding current.

[0024] When the thickness of the strip is less than the thickness range and the yield strength is within the strength range, 1-2 fixed weld points are spot welded to the inner ring strip head according to the first welding current;

[0025] When the thickness of the strip is not less than the thickness range and the yield strength is greater than the strength range, two fixed weld points are spot welded to the inner ring strip head according to the second welding current;

[0026] When the thickness of the strip is less than the thickness range and the yield strength is greater than the strength range, 1-2 fixed weld points are spot welded to the inner ring strip head according to the first welding current.

[0027] In one optional embodiment, the thickness range is 1.1-1.2 mm, and the strength range is 400-500 MPa.

[0028] In an optional embodiment, after spot welding the inner ring of the target steel coil to fix it, the method further includes:

[0029] Trigger an unlock signal, and control the coil transport vehicle to continue transporting the target steel coil based on the unlock signal.

[0030] Secondly, embodiments of the present invention also provide a method for processing loosened steel coils, the method comprising:

[0031] The receiving module is used to receive the position signal of the target steel coil being transported by the coil transport vehicle, wherein the target steel coil is a steel coil with an uncoiled inner ring or a steel coil with a risk of uncoiledness;

[0032] The first determining module is used to determine whether the coil transport vehicle has reached the preset target position based on the position signal;

[0033] A trigger control module is used to trigger a locking signal when the coil transport vehicle reaches the target position, and control the coil transport vehicle to stop moving according to the locking signal;

[0034] The spot welding module is used to spot weld and fix the inner ring of the target steel coil after the coil transport vehicle stops moving.

[0035] Thirdly, embodiments of the present invention also provide an electronic device, including a processor and a memory, the memory being coupled to the processor, the memory storing instructions that, when executed by the processor, cause the electronic device to perform the steps of any of the methods described in the first aspect.

[0036] Fourthly, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in any one of the first aspects.

[0037] The method and apparatus for treating loosened steel coils according to the present invention have the following advantages compared with the prior art:

[0038] The processing method of this invention receives the position signal of the transport vehicle when the target steel coil with an inner coil loosening or a risk of loosening is being transported. Based on the position signal, it determines whether the transport vehicle has reached the preset target position. When the transport vehicle reaches the target position, a locking signal is triggered, and the transport vehicle is controlled to stop moving according to the locking signal. After the transport vehicle stops moving, it indicates that the conditions for welding the target steel coil are met. The inner coil of the target steel coil is then spot-welded to fix it. Spot welding has a good inhibitory effect on inner coil loosening, thereby improving the reliability of the inner coil loosening treatment. Since the inner coil of the target steel coil is no longer loosening, the problems of inner coil scratches and abrasions that occur during the leveling and uncoiling process can be reduced, thereby reducing the cutting loss rate of the target steel coil and improving the yield of the target steel coil. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 A flowchart of a method for handling loosened steel coils provided in an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the structure of the rolling tool provided in an embodiment of the present invention;

[0042] Figure 3 This is a schematic diagram of the steel coil loosening treatment device provided in an embodiment of the present invention.

[0043] Explanation of reference numerals in the attached drawings: 1-coil carrier, 2-steel coil, 3-inner ring, 4-platform, 5-vertical support, 6-horizontal support, 7-working head. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the protection scope of the embodiments of the present invention.

[0045] The method for treating loose coils described in this invention can be applied to any steel coil that exhibits inner ring dent defects when producing extremely thin specifications on a leveling production line. This invention will specifically illustrate how to treat a low-carbon mild steel strip with a thickness not exceeding 1.2 mm and a carbon content of 0.03-0.05%.

[0046] Please see Figure 1 , Figure 1 A flowchart of a method for processing loosened steel coils provided in an embodiment of the present invention, the method comprising:

[0047] S11. Receive the position signal of the target steel coil being transported by the coil transport vehicle, wherein the target steel coil is a steel coil with an uncoiled inner ring or a risk of uncoil.

[0048] Specifically, the coil transport vehicle moves steel coils along a preset trajectory, and the position signal indicates the current position of the transport vehicle on the preset trajectory. Whether the steel coil being transported is the target coil can be determined by on-site operators. For example, operators can observe whether there is any loosening of the inner coil. If the coil operator observes loosening, they can inform the operator at the loosening treatment station via walkie-talkie that the coil is the target coil requiring processing. Alternatively, it can be determined based on the coil's label information. For example, if the tension during coil winding is insufficient, the coil can be marked as a target coil, and the transport vehicle will simultaneously acquire this label information when transporting the target coil. The risk of loosening can be determined based on the coil's thickness. For example, when the coil is thin, the inner coil is prone to collapse and loosening after unwinding from the coiler. Therefore, coils with a strip thickness below a set threshold can be marked as target coils.

[0049] In practical applications, factors contributing to loosening of the inner coil of a steel coil include not only strip thickness. If only strip thickness is used as the determining factor for the target steel coil, some coils at risk of loosening may not be addressed in a timely manner. Therefore, in one specific embodiment, before receiving the position signal of the target steel coil transported by the coil transport vehicle, the method further includes:

[0050] The first step is to obtain the strip thickness and carbon content of the steel coil loaded on the transport vehicle. During strip coiling, the working tension of the coiler is set based on its thickness; therefore, the strip thickness can be obtained based on the corresponding information during strip coiling. The carbon content of the strip is the main factor determining its mechanical properties. With increasing carbon content, the strip hardness increases, while its plasticity and toughness decrease. Therefore, it is also a key factor affecting the quality of strip coiling. The carbon content of the strip can be determined based on the steel grade information of the loaded steel coil.

[0051] The second step involves determining the target steel coil with a risk of loosening when the strip thickness is no greater than a preset thickness and the carbon content of the strip is within a preset carbon content range. The preset thickness and preset carbon content range can be determined based on the experience of technical personnel or through calibration tests; they should be sufficient to characterize a significant risk of loosening of the loaded steel coil. For example, a preset thickness of 1.2 mm and a preset carbon content range of 0.03-0.05% can be set. After receiving the position signal of the target steel coil transported by the coil transport vehicle, the process proceeds to step S12.

[0052] S12. Determine whether the transport vehicle has reached the preset target position based on the position signal.

[0053] Specifically, the target position is the location where the target steel coil is unwound. When determining whether the transport vehicle has reached the target position using the position signal, it can be based on the meaning of the position signal. For example, if the position signal represents the relative distance between the current position and the starting position of the transport vehicle, the relative distance can be compared with the corresponding distance of the target position. The relative distance can be obtained based on the distance measurement of the rangefinder or wheel encoder on the transport vehicle. When the relative distance is equal to the corresponding distance, it means that the transport vehicle has reached the target position; otherwise, if the relative distance is less than the corresponding distance, it means that the transport vehicle has not yet reached the target position. Real-time monitoring continues, and after determining whether the transport vehicle has reached the preset target position, the process proceeds to step S13.

[0054] S13. When the coil transport vehicle reaches the target position, a locking signal is triggered, and the coil transport vehicle is controlled to stop moving according to the locking signal;

[0055] Specifically, the locking signal is used to trigger the coil transport vehicle to stop, facilitating the unwinding of the target steel coil. The locking signal can be triggered by a limit switch on a preset track. For example, the limit switch can be installed on one side of the preset track. During operation, the trigger rod on the side of the coil transport vehicle comes into contact with the limit switch, triggering the limit switch to output a locking signal. Upon receiving the locking signal, the vehicle controller of the coil transport vehicle brakes, stopping the coil transport vehicle. The locking signal can also be triggered by input from on-site operators. For example, a push-button switch can be installed at the unwinding station. Pressing this switch stops the coil transport vehicle. This triggering mechanism offers greater flexibility, allowing on-site personnel to implement the control according to the unwinding requirements. After the coil transport vehicle stops, the process proceeds to step S14.

[0056] S14. After the coil transport vehicle stops moving, the inner ring of the target steel coil is spot-welded to fix it.

[0057] Specifically, once the coil transport vehicle stops moving, it indicates that the conditions for implementing the loosening treatment of the steel coil are met. The inner coil end of the target steel coil is then spot-welded to secure it. This inner coil end is located at the end of the innermost coiled strip of the target steel coil. It can be spot-welded to the next innermost strip. After spot welding, the innermost and next innermost strips have good connection performance. For steel coils that have already become loose, this prevents further loosening; for steel coils that have not yet become loose, it effectively prevents them from becoming loose, thus ensuring a more reliable solution to the loosening problem.

[0058] In practical applications, because inner coil loosening is often accompanied by inner coil collapse or irregular extension towards the center of the inner coil, spot welding cannot be performed if the inner coil strip head is not attached to the secondary inner coil strip. Therefore, in one specific embodiment, the target steel coil is a steel coil with an inner coil loosening; spot welding is performed to fix the inner coil strip head of the target steel coil, including:

[0059] The first step is to control the coiling tool to move to the inner coil of the target steel coil. The coiling tool can be a mechanical, manual tool, such as a column with a through hole at the top of the preset track. A long, narrow clamping rod is passed through the through hole to form a lever structure. The operator stands on the side of the column away from the transport vehicle. After the transport vehicle stops, the operator inserts the clamping rod into the inner coil of the target steel coil, using the lever principle to clamp the inner coil. The clamping rod should be of appropriate length and height to facilitate movement and coiling within the coil, while ensuring sufficient distance to prevent burns during welding. The operator must wear appropriate personal protective equipment (PPE) in accordance with safety regulations. Alternatively, the coiling tool can be a motor-driven electric tool or a pneumatically driven tool; please refer to [link to relevant documentation]. Figure 2 The coiling tool includes a platform 4, a vertical support 5, a horizontal support 6, and a working head 7. The platform 4 is fixedly set on one side of the preset track, the vertical support 5 is fixed on the top of the platform 4, the horizontal support 6 is installed on the vertical support 5, and the working head 7 is provided at the end of the horizontal support 6 near the coil transport vehicle 1. The vertical support 5 is used to drive the horizontal support 6 to move vertically. Since the target steel coil 2 is carried and transported by the V-shaped base on the coil transport vehicle 1, when the coil transport vehicle stops, it can ensure that the center line of the target steel coil 2 and the center line of the coiling tool are on the same straight line, which makes it easy to move the working head 7 to the inner ring 3 of the target steel coil 2 through the vertical support 5 and the horizontal support 6.

[0060] The second step involves applying a preset pressure to the target area of ​​the inner coil using a coiling tool, thereby pressing the loosely coiled strip into place. Similarly, when the coiling tool is manual, the operator uses leverage to press the target area; when the tool is power or pneumatic, a motor or cylinder drives the working head to press the strip into place. The target area is the middle section of the inner coil, located more than a preset distance (100mm) from both sides.

[0061] The third step is to spot weld the inner ring of the target area to create a preset number of fixed weld points. Spot welding can be done manually by the operator or automatically by the working head. A welding gun can be set on the working head. After the loosely rolled inner ring strip is pressed and adhered, the inner ring of the strip is spot welded firmly by the welding gun.

[0062] In practical applications, although spot welding the inner ring of the target steel coil inhibits uncoiling of the inner ring, if the weld is too strong during uncoiling, it may damage the uncoiling equipment. Therefore, in one specific embodiment, spot welding is performed on the inner ring of the target area, including:

[0063] Obtain the strip thickness and yield strength of the target steel coil. The yield strength can be determined by looking up the steel grade of the target steel coil in a preset relationship table. The preset relationship table is a table that represents the correspondence between yield strength and steel grade.

[0064] When the strip thickness is not less than the thickness range and the yield strength is less than the preset strength range, it means that a smaller current should be used for spot welding to prevent the strip from being broken down by excessive welding current during spot welding. Then, according to the preset first welding current, 1-2 fixed weld points are spot welded to the inner ring strip head.

[0065] When the strip thickness is not less than the thickness range and the yield strength is within the strength range, it indicates that a larger current should be used for welding. According to the preset second welding current, one fixed weld point is spot welded to the inner ring strip head. The second welding current is greater than the first welding current. The actual current values ​​of the first welding current and the second welding current can be determined based on the experience of the technicians or by calibration tests. The goal is to spot weld firmly without welding burn-off.

[0066] When the strip thickness is less than the thickness range, it means that a smaller current should be used for spot welding. When the yield strength is less than the strength range, it means that the number of weld points should not be too small. Therefore, according to the first welding current, two fixed weld points should be spot welded to the inner ring strip head.

[0067] When the strip thickness is less than the thickness range, it means that a smaller current should be used for spot welding. When the yield strength is within the strength range, spot weld 1-2 fixed weld points on the inner ring strip head according to the first welding current.

[0068] When the strip thickness is not less than the thickness range, it means that a smaller current should be used for spot welding. When the yield strength is greater than the strength range, it means that the number of weld points should not be too few. According to the second welding current, two fixed weld points are spot welded to the inner ring strip head.

[0069] When the strip thickness is less than the thickness range, it means that a smaller current should be used for spot welding. When the yield strength is greater than the strength range, it means that the number of weld points should not be too few. According to the first welding current, spot weld 1-2 fixed weld points on the inner ring strip head.

[0070] It is understandable that when spot welding two fixed weld points on the inner ring, the spacing between the weld points can be freely set, for example, 200-500mm. The thickness and strength ranges can be determined after calibration tests, for example, setting the thickness range to 1.1-1.2mm and the strength range to 400-500MPa. When the thickness and strength ranges are within the above ranges, the spot welds can be effectively guaranteed to be firm. At the same time, the weld points will automatically separate based on the traction force of uncoiling during uncoiling, preventing the welds from being too strong and causing damage to the uncoiling equipment.

[0071] In practical applications, since the uncoiling process is completed during the coil transport, the coil transport vehicle needs to continue transporting the target steel coil to the next station to ensure the smooth progress of the target steel coil processing steps. Therefore, in one specific embodiment, after spot welding the inner ring of the target steel coil to fix it, the method further includes:

[0072] Trigger the unlock signal, and control the coil transport vehicle to continue transporting the target steel coil based on the unlock signal.

[0073] Specifically, the unlock signal can be triggered by the unlock button at the uncoiling station. After spot welding of the target steel coil is completed, the operator presses the unlock button to trigger the unlock signal. Upon receiving the unlock signal, the vehicle controller of the coil transport vehicle controls the transport vehicle to continue transporting the coil for subsequent packaging and marking processes. The locking and unlocking signals ensure the reliability of the coil transport vehicle's start-stop control and prevent accidental operation that could cause personal injury to on-site operators.

[0074] Based on the same inventive concept as the processing method, this embodiment of the invention also provides a method for processing loosened steel coils. Please refer to [link to relevant documentation]. Figure 3 The method includes:

[0075] The receiving module 301 is used to receive the position signal of the target steel coil being transported by the coil transport vehicle, wherein the target steel coil is a steel coil with an uncoiled inner ring or a steel coil with a risk of uncoiledness.

[0076] The first determining module 302 is used to determine whether the coil transport vehicle has reached the preset target position based on the position signal;

[0077] The trigger control module 303 is used to trigger a locking signal when the coil transport vehicle reaches the target position, and control the coil transport vehicle to stop moving according to the locking signal;

[0078] The spot welding module 304 is used to spot weld and fix the inner ring of the target steel coil after the coil transport vehicle stops moving.

[0079] In an optional embodiment, the device further includes:

[0080] The acquisition module is used to acquire the strip thickness and carbon content of the steel coils loaded on the coil transport vehicle;

[0081] The second determining module is used to determine that the loaded steel coil is a target steel coil with a risk of loosening when the thickness of the strip is not greater than a preset thickness and the carbon content of the strip is within a preset carbon content range.

[0082] In one optional embodiment, the target steel coil is a loosely coiled inner coil; the spot welding module includes:

[0083] The first control submodule is used to control the coiling tool to move to the inner ring of the target steel coil;

[0084] The second control submodule is used to apply a preset pressure to the target area of ​​the inner ring of the steel coil via the coiling tool, so as to press the loosely coiled strip steel in the inner ring tightly together, wherein the target area is the middle area of ​​the inner ring of the steel coil that is more than a preset distance from the two sides.

[0085] The spot welding submodule is used to spot weld the inner ring head of the target area to generate a preset number of fixed weld points in the target area.

[0086] In one optional embodiment, the spot welding submodule includes:

[0087] The acquisition unit is used to acquire the strip thickness and yield strength of the target steel coil;

[0088] The first spot welding unit is used to spot weld 1-2 fixed weld points on the inner ring strip head according to a preset first welding current when the strip thickness is not less than the thickness range and the yield strength is less than the preset strength range.

[0089] The second spot welding unit is used to spot weld one fixed weld point on the inner ring strip head according to a preset second welding current when the strip thickness is not less than the thickness range and the yield strength is within the strength range, wherein the second welding current is greater than the first welding current.

[0090] The third spot welding unit is used to spot weld two fixed weld points on the inner ring strip head according to the first welding current when the strip thickness is less than the thickness range and the yield strength is less than the strength range.

[0091] The fourth spot welding unit is used to spot weld 1-2 fixed weld points on the inner ring strip head according to the first welding current when the strip thickness is less than the thickness range and the yield strength is within the strength range.

[0092] The fifth spot welding unit is used to spot weld two fixed weld points on the inner ring strip head according to the second welding current when the strip thickness is not less than the thickness range and the yield strength is greater than the strength range.

[0093] The sixth spot welding unit is used to spot weld 1-2 fixed weld points on the inner ring strip head according to the first welding current when the strip thickness is less than the thickness range and the yield strength is greater than the strength range.

[0094] In an optional embodiment, the device further includes:

[0095] The trigger control module is used to trigger an unlock signal and control the coil transport vehicle to continue transporting the target steel coil according to the unlock signal.

[0096] Based on the same inventive concept as the processing method, embodiments of the present invention also provide an electronic device, including a processor and a memory, wherein the memory is coupled to the processor and stores instructions that, when executed by the processor, cause the electronic device to perform the steps of any of the processing methods.

[0097] Based on the same inventive concept as the processing method, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the processing methods.

[0098] The technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0099] 1. When a target steel coil with an inner coil that is loose or at risk of loosening is transported by a coil transport vehicle, the system receives the position signal of the transport vehicle. Based on the position signal, it determines whether the transport vehicle has reached the preset target position. When the transport vehicle reaches the target position, a locking signal is triggered, and the transport vehicle is controlled to stop moving according to the locking signal. After the transport vehicle stops moving, it indicates that the conditions for welding the target steel coil are met. The inner coil of the target steel coil is then spot-welded to fix it. Spot welding has a good inhibitory effect on the loosening of the inner coil, thereby improving the reliability of the inner coil loosening treatment. Since the inner coil of the target steel coil is no longer loose, the problems of inner coil scratches and abrasions that occur during the leveling and uncoiling process can be reduced, thereby reducing the cutting loss rate of the target steel coil and improving the yield of the target steel coil.

[0100] 2. Adding interlocking control to the ground spot welding platform can ensure that the target steel coil to be processed will not move, effectively avoiding safety problems caused during the processing. It has the advantages of being scientific, simple, economical and efficient. Using this method, the occurrence of inner ring scratch defects during the flattening production of extremely thin specifications can be effectively reduced without increasing the production line production cost or affecting the performance of the finished product.

[0101] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0102] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (modules, systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0103] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0104] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0105] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0106] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method of handling a coil of steel for uncoiling, characterized in that, The method comprises: receiving a position signal of a coil car transporting a target steel coil, wherein the target steel coil is a loose inner coil or a steel coil at risk of loose coil; determining whether the coil car reaches a preset target position according to the position signal; triggering a locking signal when the coil car reaches the target position, and controlling the coil car to stop moving according to the locking signal; after the coil car stops moving, spot welding and fixing the inner coil head of the target steel coil; the target steel coil is a loose inner coil; and the spot welding and fixing the inner coil head of the target steel coil comprises: controlling a coil pressing tool to move to the inner coil of the target steel coil; applying a preset pressure to a target area of the inner coil of the steel coil through the coil pressing tool, so that the loose inner coil of the strip steel is pressed and tightly fitted, wherein the target area is a middle area of the inner coil of the steel coil which is greater than a preset distance from both side portions; spot welding the inner coil head of the target area to generate a preset number of fixed welding points in the target area; the spot welding the inner coil head of the target area comprises: obtaining the thickness and yield strength of the strip steel of the target steel coil; when the thickness of the strip steel is not less than a thickness interval, and the yield strength is less than a preset strength interval, spot welding 1-2 fixed welding points of the inner coil head according to a preset first welding current; when the thickness of the strip steel is not less than the thickness interval, and the yield strength is in the strength interval, spot welding 1 fixed welding point of the inner coil head according to a preset second welding current, wherein the second welding current is greater than the first welding current; when the thickness of the strip steel is less than the thickness interval, and the yield strength is less than the strength interval, spot welding 2 fixed welding points of the inner coil head according to the first welding current; when the thickness of the strip steel is less than the thickness interval, and the yield strength is in the strength interval, spot welding 1-2 fixed welding points of the inner coil head according to the first welding current; when the thickness of the strip steel is not less than the thickness interval, and the yield strength is greater than the strength interval, spot welding 2 fixed welding points of the inner coil head according to the second welding current; when the thickness of the strip steel is less than the thickness interval, and the yield strength is greater than the strength interval, spot welding 1-2 fixed welding points of the inner coil head according to the first welding current.

2. The method of claim 1, wherein the steel coil is uncoiled by a method comprising: Before the receiving a position signal of a coil car transporting a target steel coil, the method further comprises: obtaining the thickness and carbon content of the strip steel loaded on the coil car; when the thickness of the strip steel is not greater than a preset thickness, and the carbon content of the strip steel is in a preset carbon content interval, determining that the loaded steel coil is a target steel coil at risk of loose coil.

3. The method of claim 2, wherein the steel coil is uncoiled by a method comprising: The preset thickness is 1.2 mm, and the preset carbon content interval is 0.03-0.05%.

4. The method of claim 1, wherein The thickness interval is 1.1-1.2 mm, and the strength interval is 400-500 MPa.

5. The method of claim 1, wherein the steel coil is uncoiled by a method comprising: After the spot welding and fixing the inner coil head of the target steel coil, the method further comprises: Trigger an unlocking signal, and control the coil car to continue transporting the target coil according to the unlocking signal.

6. A coil unwinding processing apparatus characterized by comprising: The device comprises: A receiving module is configured to receive a position signal of a coil car transporting a target coil, wherein the target coil is a loose inner coil or a coil at risk of being loose; A first determining module is configured to determine whether the coil car reaches a preset target position according to the position signal; A triggering control module is configured to trigger a locking signal when the coil car reaches the target position, and control the coil car to stop moving according to the locking signal; A spot welding processing module is configured to perform spot welding on the inner coil head of the target coil after the coil car stops moving; The target coil is a loose inner coil, and the spot welding on the inner coil head of the target coil comprises: Controlling a coil pressing tool to move to the inner coil of the target coil; Applying a preset pressure on a target area of the inner coil of the coil by the coil pressing tool, so that the loose inner coil is pressed and tightly fitted, wherein the target area is an intermediate area of the inner coil of the coil, which is greater than a preset distance from both side portions; Spot welding the inner coil head of the target area to generate a preset number of fixed welding points in the target area; The spot welding on the inner coil head of the target area comprises: Obtaining the thickness and yield strength of the steel strip of the target coil; When the thickness of the steel strip is not less than a thickness interval, and the yield strength is less than a preset strength interval, spot welding 1-2 fixed welding points on the inner coil head according to a preset first welding current; When the thickness of the steel strip is not less than the thickness interval, and the yield strength is in the strength interval, spot welding 1 fixed welding point on the inner coil head according to a preset second welding current, wherein the second welding current is greater than the first welding current; When the thickness of the steel strip is less than the thickness interval, and the yield strength is less than the strength interval, spot welding 2 fixed welding points on the inner coil head according to the first welding current; When the thickness of the steel strip is less than the thickness interval, and the yield strength is in the strength interval, spot welding 1-2 fixed welding points on the inner coil head according to the first welding current; When the thickness of the steel strip is not less than the thickness interval, and the yield strength is greater than the strength interval, spot welding 2 fixed welding points on the inner coil head according to the second welding current; When the thickness of the steel strip is less than the thickness interval, and the yield strength is greater than the strength interval, spot welding 1-2 fixed welding points on the inner coil head according to the first welding current.

7. An electronic device, comprising: The electronic device comprises a processor and a memory coupled to the processor, and the memory stores instructions which, when executed by the processor, cause the electronic device to perform the steps of the method of any one of claims 1-5.

8. A computer readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the steps of the method of any one of claims 1-5.

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