Metal coil processing method, device, apparatus, and medium

Abstract

The application is suitable for the technical field of metal processing, and particularly relates to a metal coil processing method, device, equipment and medium. The method comprises the following steps: determining whether the parking time length of a production line is greater than a preset time threshold value, and if yes, adjusting the forward speed value of a workpiece to a preset parking speed; storing the part of the workpiece passing through a first processing unit in the parking time length by a loop, and recording the range of the over-processed part and the over-processing time; and opening a normally closed second processing unit at a preset processing intensity during the time period when the over-processed part passes through the second processing unit. The application can homogenize the over-processing problem, and solve the coil accumulation problem in some sections caused by the difference in the forward speed of the workpiece in different parts of the production line by using the loop storage mode. On this basis, the second processing unit is introduced to eliminate defects in the over-processed part, which can eliminate defects to the greatest extent, ensure the processing quality of the material, and reduce waste.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of metal processing, and particularly relates to a metal coil processing method, device, equipment and medium. BACKGROUND

[0002] A metal coil processing production line is usually composed of multiple processes, including rolling, cutting, trimming, forming and the like.

[0003] In the production process, partial processes or the entire production line may be temporarily suspended due to troubleshooting, equipment adjustment, tool replacement or maintenance, and the like. This suspension is referred to as parking, which can be divided into two types: planned parking and unplanned parking. Regardless of the type of parking, the temporary suspension of partial processes will have a great impact on the overall operation of the production line.

[0004] A typical example of the above problem is that the over-processing of the non-parking process (or the process in which partial processing measures are still being performed even if the power is cut off) during parking causes damage to the material of the metal coil. The existing solution usually discards the damaged part of the material as waste, resulting in material waste.

[0005] It can be seen that how to solve the problem of material waste caused by over-processing during parking has become a technical problem that needs to be solved in the industry. SUMMARY

[0006] The embodiments of the application provide a metal coil processing method, device, equipment and medium, which can solve the problem of material waste caused by over-processing during parking.

[0007] In a first aspect, the embodiments of the application provide a metal coil processing method, comprising:

[0008] When the parking time period of the production line is longer than a preset time threshold, the advancing speed value of the workpiece is adjusted to a preset parking speed;

[0009] The over-processed part of the workpiece is stored in the first processing unit of the production line during the parking time period, and the range of the over-processed part and the over-processing time are recorded;

[0010] The over-processed part refers to the part of the workpiece that passes through the first processing unit during the parking time period, and the over-processing time refers to the time that any point in the over-processed part stays in the first processing unit;

[0011] The normally closed second processing unit is opened at a preset processing intensity when the over-processed part passes through the second processing unit;

[0012] The second processing unit is used to eliminate at least a portion of the processing result of the first processing unit; the first processing unit and the second processing unit are sequentially arranged on the movement path of the workpiece; the preset processing intensity is a value positively correlated with the overprocessing time.

[0013] The above method reduces the impact of over-processing on a certain section of the workpiece by adjusting the workpiece's forward speed, thus "homogenizing" the over-processing problem. This reduces the problem of excessive over-processing in a specific area, which could lead to defects that cannot be eliminated. At the same time, the problem of material accumulation in some sections caused by differences in the forward speed of workpieces in different parts of the production line is solved by using a loop storage method. On this basis, a second processing unit is introduced to eliminate defects in the over-processed parts. Combined with the aforementioned effect of "homogenizing" over-processing by reducing the speed, defects can be eliminated to the greatest extent, ensuring the processing quality of materials and reducing waste.

[0014] One possible implementation of the first aspect also includes:

[0015] If the downtime of the production line is determined to be no longer than a preset time threshold, then the looper is activated.

[0016] The above method determines the impact of downtime on the over-processing of workpieces by using a time threshold. If the impact is relatively controllable, that is, the downtime of the production line is not greater than the preset time threshold, the over-processing can be eliminated or reduced by storing the workpiece in a loop.

[0017] In one possible implementation of the first aspect, after the step of storing the portion of the workpiece that passes through the first processing unit in the production line during a downtime using a looper, and recording the extent and duration of the over-processed portion, the method further includes:

[0018] If the looper reaches its storage limit, the workpiece is retracted at a preset retraction speed, and the range and time of the over-processed portion are updated.

[0019] For longer downtime periods, the above method can still reduce the impact of over-processing on the workpiece by making full use of the looper's function through retraction of the workpiece. This is because each process in the production line has a minimum allowable operating speed. At the minimum allowable operating speed, the length of the coil material that has advanced during the downtime may exceed the storage limit of the looper.

[0020] In one possible implementation of the first aspect, if it is determined that the workpiece is in a retracted state and the looper reaches the storage lower limit, then the workpiece is controlled to move forward at the stopping speed, and the range and over-processing time of the over-processed portion are updated.

[0021] The method can continue to reduce the influence of over-processing on the workpiece when the back-off process reaches a physical limit, i.e., the loop reaches the lower limit of storage, and the speed direction of the workpiece is adjusted again to advance at a parking speed.

[0022] In a possible implementation of the first aspect, the parking speed and / or the back-off speed are determined according to the length of the parking period.

[0023] The method can set the parking speed according to the length of the parking period, or set the number of cycles (i.e., the advancing and back-off process) of adjusting the speed of the workpiece by the loop, the parking speed, and the back-off speed, further making the over-processing problem "uniform", reducing the over-processing degree of a certain area being too high, and causing the problem of being unable to eliminate defects

[0024] In a possible implementation of the first aspect, a first sensor for obtaining the storage amount of the loop is arranged in the loop.

[0025] The method obtains the storage amount of the loop by the first sensor, so that the running direction and speed control of the workpiece have a data basis.

[0026] In a possible implementation of the first aspect, a second sensor for obtaining the state of the workpiece is arranged on the second processing unit.

[0027] The method obtains the state of the workpiece by the second sensor, and further provides a data basis for adjusting the running state of the second processing unit.

[0028] In a second aspect, the embodiments of the present application provide a metal coil processing device, comprising:

[0029] The speed reduction module is configured to adjust the advancing speed of the workpiece to a preset parking speed when the length of the parking period of the production line is greater than a preset time threshold.

[0030] The over-processing recording module is configured to store the part of the workpiece passing through the first processing unit in the production line during the parking period by the loop, and record the range of the over-processing part and the over-processing time.

[0031] The over-processing part refers to the part of the workpiece passing through the first processing unit during the parking period, and the over-processing time refers to the time of any point in the over-processing part staying in the first processing unit.

[0032] The elimination module is configured to start the normally closed second processing unit at a preset processing intensity when the over-processing part passes through the second processing unit.

[0033] The second processing unit is configured to eliminate at least part of the processing result of the first processing unit; the first processing unit and the second processing unit are arranged in sequence on a moving path of the workpiece; and the preset processing intensity is a value positively correlated with the excessive processing time.

[0034] In a third aspect, an embodiment of the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the metal coil processing method in any one of the first aspect.

[0035] In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executable by a processor to implement the metal coil processing method in any one of the first aspect.

[0036] In a fifth aspect, an embodiment of the present application provides a computer program product, which, when executed on a terminal device, causes the terminal device to perform the metal coil processing method in any one of the first aspect.

[0037] It can be understood that the beneficial effects of the second aspect to the fifth aspect can be referred to the related description in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0039] Figure 1 is a first flowchart of the metal coil processing method provided by the embodiments of the present application;

[0040] Figure 2 is a structural schematic diagram of the metal coil processing device provided by the embodiments of the present application;

[0041] Figure 3 is a structural schematic diagram of the terminal device provided by the embodiments of the present application;

[0042] Figure 4 is a second flowchart of the metal coil processing method provided by the embodiments of the present application;

[0043] Figure 5 is a flowchart of the metal coil processing production provided by the embodiments of the present application;

[0044] Figure 6 Fig. 1 is a structural schematic diagram of a metal coil processing production line provided by an embodiment of the present application.

[0045] Reference signs:

[0046] uncoiler 1;

[0047] first deflector roller 2;

[0048] straightener 3;

[0049] head cutting shear 4;

[0050] pickling tank 5;

[0051] rinsing tank 6;

[0052] drying machine 7;

[0053] rotary shear 8;

[0054] loop 9;

[0055] tension roller 10;

[0056] tail cutting shear 11;

[0057] oiling machine 12;

[0058] pinch roller 13;

[0059] second deflector roller 14;

[0060] coiler 15;

[0061] speed reduction module 201;

[0062] over-processing record module 202;

[0063] elimination module 203;

[0064] terminal device 30;

[0065] processor 301;

[0066] memory 302;

[0067] computer program 303. DETAILED DESCRIPTION

[0068] In the following description, for the purpose of explanation and not limitation, specific details are set forth, such as particular architectures, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0069] It should be understood that the word “comprise” or variations such as “comprises” or “comprising”, when used in this specification and in the accompanying claims, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0070] It should also be understood that the term “and / or” when used in this specification and in the following claims is to be interpreted as open language, not as limiting, such that at least one of either the items can be present, and, additionally, some or all of those items might be present in combination with each other.

[0071] As used in this specification and claims, the terms “if’ and “when” can be interpreted to mean “upon” or “in response to a determination” or “in response to a detection” depending on the context.

[0072] In addition, the terms “first”, “second”, “third”, etc. as used in the description of the application and the appended claims are used only to distinguish different instances of the same feature, and are not to be interpreted as indicating or implying relative importance.

[0073] Reference in the specification to “one embodiment” or “some embodiments” etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrases “in one embodiment”, “in some embodiments”, “in other embodiments”, “in additional embodiments”, etc., in various places in the specification are not necessarily all referring to the same embodiment, although they can. The terms “comprise”, “comprises”, “comprising”, “include”, “includes”, “including” and “contain” or variations are used inclusively and not exclusivity, unless expressly limited otherwise.

[0074] Embodiments of the application provide a metal coil processing method, as shown in the accompanying drawings, comprising: Figure 1

[0075] Step 102, if the length of the parking period of the production line is greater than the preset time threshold, the advancing speed of the workpiece is adjusted to the preset parking speed.

[0076] Step 104, the excess processing part of the workpiece is stored in the production line by the first processing unit during the parking period, and the range of the excess processing part and the excess processing time are recorded.

[0077] ​The over-processed part refers to a part of the workpiece that passes through the first processing unit during the parking period; and the over-processed time refers to the time that any point in the over-processed part stays in the first processing unit.

[0078] In step 106, the second processing unit that is normally closed is opened at a preset processing intensity during the period when the over-processed part passes through the second processing unit.

[0079] The second processing unit is used to eliminate at least part of the processing result of the first processing unit; the first processing unit and the second processing unit are arranged in sequence on the moving path of the workpiece; and the preset processing intensity is a value that is positively correlated with the over-processed time.

[0080] In this embodiment, the production line refers to a production line for processing metal coils, such as strip steel or aluminum coils. In some optional embodiments, the production line can be used to pickle, cold roll, or hot roll the metal coils.

[0081] As a processing workpiece, the metal coil will advance at a certain processing speed and complete processing in the production line. When part of the production line is parked (parking reasons include failure, planned parking, etc.), the remaining part can still be in a running or operable state. That is, in this state, at least part of the metal coil can be repeatedly processed by the still running process, thereby causing at least part of the metal coil to be over-processed.

[0082] As an example but not limitation, over-processing can be rolling at a non-pre-set temperature due to temperature control failure in the hot rolling process, and can also be corrosion caused by residual pickling solution in the pickling tank (i.e., "parking spots") in the pickling process.

[0083] In some optional embodiments of this embodiment, the first processing unit can be a pickling unit or a hot rolling unit in the above examples. Generally, the over-processing problem during parking is often difficult to avoid, but such over-processing can often be eliminated or weakened by some specific means. For example, parking spots caused by over-pickling can be eliminated or weakened by a specific intensity of rinsing. In this example, the rinsing unit (hereinafter referred to as the spot-elimination tank) is the second processing unit.

[0084] It can be understood that the running intensity of the second processing unit, such as the concentration of the rinsing solution in the spot-elimination tank, the speed, concentration, and quality of the rinsing solution injected into the spot-elimination tank, is related to the over-processed time of the first processing unit. At the same time, the running time of the second processing unit can be when the over-processed part enters the second processing unit.

[0085] Below, taking a push-pull type pickling production line of steel plates as an example, an optional implementation of the embodiment will be described, Figure 5 An example of the processing flow in this implementation is shown, Figure 6 An example of the production line structure in this implementation is shown, it is worth noting that there are some optional pickling processes, production line units different from Figure 5 and Figure 6 .

[0086] First, a brief introduction to the push-pull type pickling production line will be given for subsequent description.

[0087] The product of the push-pull type pickling line is pickled plate produced from hot-rolled steel coils. Pickled plate is an intermediate product with surface quality and use requirements (mainly cold bending forming or stamping performance) between hot-rolled plate and cold-rolled plate, which is produced from high-quality hot-rolled sheet after removing the oxide layer by the pickling unit, edge cutting, and finishing. Compared with hot-rolled plate and cold-rolled plate, pickled plate has obvious advantages. First, compared with ordinary hot-rolled plate, the surface of hot-rolled pickled plate is better due to the removal of iron oxide scale. Compared with cold-rolled plate, pickled plate is cheaper, and using pickled plate instead of cold-rolled plate can save costs for enterprises and make up for the defect that cold-rolled plate cannot produce thick specifications. At present, the market demand for steel plates is concentrated in the automobile industry, compressor industry, mechanical manufacturing industry, and parts processing industry. With the advancement of technology, hot-rolled pickled plate has been used in the household appliance, container, and electrical control cabinet industries. Using hot-rolled pickled plate instead of ordinary hot-rolled plate and cold-rolled plate has become a trend in the future development of the industry.

[0088] A quality defect often occurs in the pickling process of steel strips. Pickling "parking spots" are mainly caused by temporary stop or failure during the coiling and threading process.

[0089] Therefore, one of the purposes of the present embodiment is to eliminate defects such as "parking spots" in the pickling of hot-rolled strips, improve the physical quality of the products, meet the national standards, and meet the requirements of users.

[0090] From the perspective of principle, the present embodiment avoids the occurrence of "parking spots" by starting from the program control design of the pickling line, using the size of the live loop, calculating the running speed of the strip in the pickling tank according to the downtime of equipment failure, and automatically controlling the "parking spots" of hot-rolled strips in the pickling process. An automatic cleaning system is installed before the rinsing tank to timely remove slight "parking spots".

[0091] In addition, Figure 5 or Figure 6 The live loop process or (production line) position shown does not constitute a limitation on the present embodiment. In other optional implementations, the process or position of the live loop can be different, and in some cases, multiple live loops can be provided at different processes or positions.

[0092] When the strip steel is produced in the production line, it has a preset advancing speed (denoted as the first speed), when a partial process stops, the advancing speed of the strip steel at the first processing unit (i.e., the unit that may cause over-processing) can be adjusted, so that during the stop, the over-processing can be more evenly applied to a larger area of the strip steel, at this time, the speed of the strip steel at the first processing unit is the stop speed (denoted as the second speed).

[0093] It can be understood that, due to the different advancing speeds of the strip steel at different positions on the production line, the strip steel may be partially accumulated at the preset position of the production line, and the loop set at this position can temporarily store this part of the strip steel to ensure the normal operation of the production line during the stop.

[0094] Optionally, the second speed is set according to the length of the metal coil and the first speed under uniform constraint, which means that the second speed can make more areas of the metal coil to be processed by the first processing unit for an equal (error will not be calculated) residence time during the stop.

[0095] Further, the second processing unit, i.e., the spot-removing tank, is used to remove the stop spots, and the built-in spot-removing liquid can be an acid or an alkali, for example, it can be 28%-33% concentration of hydrochloric acid, or 25% concentration of sodium hydroxide (lime solution), and the spot-removing tank can also be provided with a corrosion inhibitor.

[0096] The preset processing intensity for the spot-removing tank can be the concentration of the acid or alkali, or the spraying flow of the acid or alkali.

[0097] In addition, the spot-removing tank can also be equipped with a spot-removing brush, which can move in the opposite direction of the advancing direction of the metal coil to remove the precipitated products (for the stop spots of the strip steel, it is usually ferric chloride, ferrous oxide, and iron oxide) after the reaction of the spot-removing liquid and the stop spots.

[0098] The beneficial effects of the embodiment are:

[0099] By adjusting the advancing speed value of the workpiece, the influence of over-processing on a certain section of the workpiece is reduced, so that the over-processing problem is "homogenized", and the over-processing degree of a certain specific area is reduced, which avoids the problem that the over-processing degree is too high to eliminate defects. At the same time, the problem of partial coil accumulation caused by the difference in the advancing speed of the workpiece in different parts of the production line is solved by using the loop storage. On this basis, by introducing the second processing unit to eliminate defects in the over-processed part, and cooperating with the effect of "homogenization" of over-processing achieved by reducing the speed, defects can be eliminated to the greatest extent, the processing quality of the material is ensured, and waste is reduced.

[0100] According to the above embodiment, in yet another embodiment, the metal coil processing method further comprises:

[0101] determining that the parking time period is not longer than a preset time threshold, and then starting the looper.

[0102] Figure 4 is a flowchart of the embodiment, in which the judgment process of step 100 can be introduced as the basis for subsequent step execution.

[0103] For planned parking, although the parking time may be extended or shortened due to maintenance and other reasons, the length of the parking time period can be estimated overall. For unplanned parking, after determining the sudden situation (such as a failure of a processing unit device), the length of the parking time period can also be estimated.

[0104] Therefore, according to the size relationship between the parking time period length and the preset time threshold, subsequent processes can enter the branch starting from step 102 or the branch starting from step 108. It should be noted that the step numbers of the embodiments of the present application are only for annotation and description, and do not constitute a limitation on the execution order and execution conditions of each step unless otherwise specified.

[0105] In an optional embodiment, the time threshold is a quantity related to the parameters of the metal coil (such as length), the parameters of the production line (such as the forward speed of the metal coil in the production line), and the parameters of the loopers (such as the number, position, and storage upper limit of the loopers). For example, the difference between the minimum speed (denoted as the third speed) at which the metal coil advances in the production line and the forward speed (denoted as the first speed) during normal production is taken as the judgment speed, the sum of the storage upper limits of the loopers is taken as the judgment length, the quotient of the judgment length and the judgment speed is calculated, and the time threshold (the quotient of the length unit and the speed unit naturally obtains a result with a time unit) is obtained. At the same time, the size relationship between the remaining length (or the processed length) of the metal coil at the beginning of the parking time period and the judgment length should be considered to ensure that the remaining length (or the processed length) is greater than the judgment length. If not, the remaining length (or the processed length) is taken as the value of the judgment length.

[0106] It should be noted that in the above embodiment, only the case where the third speed is lower than the first speed is taken as an example for description. In some cases, the processing speed of the production line during parking may be higher than the first speed, or higher than the first speed in some time periods and lower than the first speed in some time periods, but the judgment logic of the time threshold is still consistent. That is, when the storage of the metal coil can be completed only by the loopers, the branch starting from step 108 is executed, otherwise, the branch starting from step 102 is executed.

[0107] Further, after the branch initiated by step 108, the recording and defect elimination steps similar to steps 104 and / or 106 can still be performed.

[0108] The difference between the two branches initiated by step 102 and step 108 mainly lies in whether the sum of the storage upper limits of the loops can accommodate the accumulated portion of the metal coil caused by the speed difference during the parking period. If it can be accommodated, the branch initiated by step 108 is performed, otherwise, the branch initiated by step 102 is performed.

[0109] In the branch initiated by step 102, there is a problem that the storage upper limit of the loop is not enough to accommodate the accumulated portion of the coil, and the solution and confirmation of this problem will be introduced and described in the next embodiment.

[0110] The beneficial effects of the present embodiment are:

[0111] By judging the influence of the parking time on the over-processing problem of the workpiece through the time threshold, if the influence is relatively controllable, that is, the parking period of the production line is not longer than the preset time threshold, the workpiece is stored by the loop, and the over-processing can be eliminated or weakened.

[0112] According to any of the above embodiments, in yet another embodiment:

[0113] After the step of storing the workpiece by the loop through the portion of the first processing unit in the production line during the parking period and recording the range of the over-processed portion and the over-processing time, the step further comprises:

[0114] If it is determined that the loop reaches the storage upper limit, the workpiece is retracted at a preset retraction speed, and the range of the over-processed portion and the over-processing time are updated.

[0115] In the present embodiment, the retraction speed can be calculated according to the parameters of the metal coil (such as length), the parameters of the production line (such as the advancing speed of the metal coil in the production line), the parameters of the loop (such as the number, position, storage upper limit of the loop, etc.), and the specific execution steps can be referred to the following examples:

[0116] Determining the over-processing time upper limit according to the type of the first processing unit and the type of the metal coil, the over-processing time upper limit refers to the maximum over-processing time that can be performed for defect elimination;

[0117] Calculating the residence time of the first processing unit according to the minimum allowed running speed of the production line and the size of the first processing unit;

[0118] Determining the number of cycles according to the quotient of the over-processing time upper limit and the residence time of the first processing unit;

[0119] The parking speed and the back-off speed are determined according to the number of cycles and the length of the parking period.

[0120] That is, the parking speed and / or the back-off speed are determined according to the length of the parking period.

[0121] It is worth mentioning that there are some cases of long parking time, which inevitably cause the metal coil to be damaged irreversibly. Such cases can still be identified by calculating the intermediate value in the above steps, and in this case, it can be considered that step 106 is no longer performed.

[0122] However, even if the parking time is too long and the metal coil is inevitably damaged irreversibly, the steps of adjusting the coil speed (as the parking speed or the back-off speed) and storing the coil accumulation part by the loop can still be performed, for example, in the case where the coil cannot continue to advance at the part where the process is stopped, the coil needs to be reciprocated in the process (processing unit) before the stopped part to avoid damage to the equipment.

[0123] In addition, although step 106 can not be performed in this case, in some special cases, defect elimination actions still need to be performed (even if the coil is already in an irrecoverable state), for example, in the case where the pickling process lasts too long and may cause the coil to break, the corrosion inhibitor in the stain removal tank can delay the breaking process and better protect the production line equipment.

[0124] The beneficial effects of the embodiment are:

[0125] For a longer parking period, since there is a minimum allowed running speed for each process in the production line, at the minimum allowed running speed, the length of the coil advancing during the parking period may exceed the upper limit of the loop storage. In this case, by back-off of the workpiece, the function of the loop is fully utilized, and the influence of over-processing on the workpiece can still be reduced.

[0126] According to any of the above embodiments, in yet another embodiment, the metal coil processing method further comprises:

[0127] When it is determined that the workpiece is in the back-off state and the loop reaches the lower limit of storage, the workpiece is controlled to advance at the parking speed, and the range of the over-processed part and the over-processing time are updated.

[0128] In combination with the previous embodiment, the present embodiment can realize the reciprocating movement of the coil accumulation part, that is:

[0129] Since the parking speed (denoted as the second speed) of the metal coil and the advancing speed (denoted as the first speed) in the normal production have a gap, i.e., the speed of the metal coil at the first processing unit is different from the speed at other units, the relative speed can be regarded as the moving speed of the metal coil at the first processing unit, at this time, since the accumulated coil has been stored by the loop, the operation of the production line will not be affected, but when the loop reaches the upper limit of storage, the relative speed will possibly cause adverse effects on the operation of the production line (for example, damaging the coil or part of the processing equipment), at this time, the parking speed can be adjusted to the back-off speed, so that the accumulated coil can circulate at the first processing unit, thereby solving the problem of insufficient loop to accommodate the accumulated coil due to the long parking period in the branch starting from step 102.

[0130] The beneficial effects of the embodiment are:

[0131] When the back-off process reaches the physical limit, i.e., the loop reaches the lower limit of storage, the speed direction of the workpiece is adjusted again to advance at the parking speed, which can continue to maintain the effect of reducing the influence of over-processing on the workpiece.

[0132] According to any of the above embodiments, in yet another embodiment:

[0133] The loop is provided with a first sensor for obtaining the storage amount of the loop.

[0134] The second processing unit is provided with a second sensor for obtaining the state of the workpiece.

[0135] The first sensor can be a laser ranging sensor, for example, for a loop storing coils in the vertical direction, the laser ranging sensor arranged at the top and / or bottom can measure the distance between the coil and the sensor, and then convert the storage amount of the coil in the loop.

[0136] The second sensor can be a visual sensor or an electromagnetic sensor for obtaining the topography of the surface or the inside of the coil.

[0137] It is worth noting that the type of the second sensor is highly related to the type of the first processing unit, for example, for the first processing unit of the pickling and rolling process, the second sensor can select a visual sensor to obtain the parking spot condition of the surface.

[0138] Further, based on the feedback result of the second sensor, the working intensity of the second processing unit can be controlled together with the over-processing time.

[0139] The beneficial effects of the embodiment are:

[0140] The first sensor is used to know the loop storage amount, so that the running direction and speed control of the workpiece have data basis. The second sensor is used to know the workpiece state, so as to provide data basis for the running state adjustment of the second machining unit.

[0141] Based on the above embodiments, a complete method for eliminating "parking spots" on a strip push-pull pickling line will be provided below to better illustrate the application scheme. This embodiment does not mean that the application scheme can only be applied to a pickling production line or only to strip processing.

[0142] 1) Determine the downtime. If the time is short, the system can calculate and use the reduced speed of the pre-loop production line to complete the loop amount, and the system is reduced to the specified speed, and the cleaning system does not need to be started.

[0143] 2) If the downtime is relatively long and exceeds the time that can be alleviated by the loop amount, low speed (not less than the minimum speed designed for the production line, for example, 5 m / min) is used during coiling threading or fault to make the strip slowly flow in the pickling tank, as follows: The loop is detected by laser ranging. In normal production process, the loop amount is generally set to about 2.5 m. After shutdown, the coil moves forward at a speed of 10 m / min, until the laser ranging is 9 m. The system continues to move backward at a speed of 10 m / min. When the laser ranging is 2 m, repeat the previous operation. At the same time, the system calculates the position of the "parking spot" that the strip will generate, and automatically starts the cleaning system to clean the position with slight "parking spot".

[0144] High-definition cameras are installed in the loop and the cleaning system as the second sensor.

[0145] In addition, in order to realize intelligent control, the equipment of the production line can be in the following form:

[0146] The control system is installed in the main operating room of the production line: database, data information receiving module, data information calculation processing module, communication command system, alarm system.

[0147] Database: steel grade and specification of production strip; maximum and minimum speed of production line; related parameters of loop and main equipment of production line; "parking spot" picture, etc.

[0148] Data information receiving module: receive information of related work points of production line;

[0149] Communication command system: command related equipment and production line automation system to execute the conclusion of the calculation processing module.

[0150] Alarm system: alarm when the "parking spot" of the strip exceeds the standard.

[0151] It should be understood that the size of the serial number of each step in the above embodiment does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0152] corresponding to the metal coil processing method described in the above embodiment, Figure 2 A structural block diagram of a metal coil processing device provided by the embodiments of the present application is shown, and only parts related to the embodiments of the present application are shown for ease of illustration.

[0153] With reference to Figure 2 The device comprises:

[0154] The speed reduction module 201 is configured to determine that the length of the parking period of the production line is greater than a preset time threshold, and then adjust the forward speed value of the workpiece to a preset parking speed.

[0155] The over-processing recording module 202 is configured to store the part of the workpiece passing through the first processing unit in the production line during the parking period by the loop, and record the range of the over-processing part and the over-processing time.

[0156] The over-processing part refers to the part of the workpiece passing through the first processing unit during the parking period, and the over-processing time refers to the time that any point in the over-processing part stays in the first processing unit.

[0157] The elimination module 203 is configured to open the normally closed second processing unit at a preset processing intensity when the over-processing part passes through the second processing unit.

[0158] The second processing unit is configured to eliminate at least part of the processing result of the first processing unit, the first processing unit and the second processing unit are arranged in sequence on the moving path of the workpiece, and the preset processing intensity is a value positively correlated with the over-processing time.

[0159] Further, the device further comprises:

[0160] The loop module is configured to determine that the length of the parking period of the production line is not greater than a preset time threshold, and then open the loop.

[0161] The back-off module is configured to determine that the loop reaches the upper limit of storage, and then back off the workpiece at a preset back-off speed, and update the range of the over-processing part and the over-processing time.

[0162] The cycle module is configured to determine that the workpiece is in a back-off state and the loop reaches the lower limit of storage, and then control the workpiece to advance at the parking speed, and update the range of the over-processing part and the over-processing time.

[0163] Specifically:

[0164] The parking speed and / or reversing speed are determined based on the duration of the parking period.

[0165] The looper is equipped with a first sensor for obtaining the storage capacity of the looper.

[0166] The second processing unit is equipped with a second sensor for acquiring the state of the workpiece.

[0167] It should be noted that the information interaction and execution process between the above-mentioned devices / units are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, and they will not be repeated here.

[0168] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0169] This application also provides a terminal device, such as... Figure 3 As shown, the terminal device 30 includes: at least one processor 301, a memory 302, and a computer program 303 stored in the memory and executable on the at least one processor. When the processor executes the computer program, it implements the steps in any of the above-described method embodiments.

[0170] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps described in the various method embodiments above.

[0171] This application provides a computer program product that, when run on a mobile terminal, enables the mobile terminal to implement the steps described in the above-described method embodiments.

[0172] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, the present application can implement all or part of the processes in the above-mentioned embodiment methods through a computer program to instruct relevant hardware to complete, and the computer program can be stored in a computer readable storage medium. When the computer program is executed by a processor, the steps of each method embodiment described above can be implemented. The computer program includes computer program code, which can be in the form of source code, object code, executable files or some intermediate forms. The computer readable medium can at least include any entity or device capable of carrying the computer program code to the photographing device / terminal equipment, recording medium, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal and software distribution medium. For example, U disk, mobile hard disk, magnetic disk or optical disk, etc. In some jurisdictions, according to legislation and patent practice, the computer readable medium can not be an electrical carrier signal and a telecommunication signal.

[0173] In the above embodiments, the description of each embodiment has its own focus, and the parts not described or recorded in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0174] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. The skilled person can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0175] In the embodiments provided in the present application, it should be understood that the disclosed apparatus / network device and method can be implemented in other ways. For example, the apparatus / network device embodiments described above are only schematic. The division of the modules or units is only a logical function division, and there can be another division in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0176] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may also be distributed to multiple network units. Part or all of the units can be selected to achieve the purpose of the embodiment scheme according to actual needs.

[0177] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A method for processing metal coils, characterized in that, include: If the duration of the production line stoppage exceeds a preset time threshold, the forward speed of the workpiece will be adjusted to the preset stopping speed. The workpiece is stored using a looper during the downtime period, passing through the first processing unit of the production line, and the extent and duration of the over-processed portion are recorded. Wherein, the over-processed portion refers to the part of the workpiece that passes through the first processing unit during the parking period; the over-processed time refers to the time that any point in the over-processed portion stays in the first processing unit; During the period when the over-processed portion passes through the second processing unit, the normally closed second processing unit is opened with a preset processing intensity; The second processing unit is used to eliminate at least a portion of the processing result of the first processing unit; the first processing unit and the second processing unit are sequentially arranged on the movement path of the workpiece; the preset processing intensity is a value positively correlated with the overprocessing time.

2. The metal coil processing method as described in claim 1, characterized in that, Also includes: If the downtime of the production line is determined to be no longer than a preset time threshold, then the looper is activated.

3. The metal coil processing method as described in claim 1, characterized in that, After the step of storing the portion of the workpiece that passes through the first processing unit in the production line during the downtime using a looper, and recording the extent and duration of the over-processed portion, the method further includes: If the looper reaches its storage limit, the workpiece is retracted at a preset retraction speed, and the range and time of the over-processed portion are updated.

4. The metal coil processing method as described in claim 3, characterized in that, Also includes: If it is determined that the workpiece is in a retracted state and the looper has reached the storage lower limit, then the workpiece is controlled to move forward at the stopping speed, and the range and over-processing time of the over-processed portion are updated.

5. The metal coil processing method according to any one of claims 1 to 4, characterized in that, The parking speed and / or reversing speed are determined based on the duration of the parking period.

6. The metal coil processing method according to any one of claims 1 to 4, characterized in that, The looper is equipped with a first sensor for obtaining the storage capacity of the looper.

7. The metal coil processing method according to any one of claims 1 to 4, characterized in that, The second processing unit is equipped with a second sensor for acquiring the state of the workpiece.

8. A metal coil processing apparatus, characterized in that, include: The speed reduction module is used to determine if the duration of the production line stoppage exceeds a preset time threshold, and then adjust the forward speed of the workpiece to the preset stopping speed. An over-processing recording module is used to store, using a looper, the portion of the workpiece that passes through the first processing unit in the production line during a downtime, and to record the range of the over-processed portion and the over-processing time; Wherein, the over-processed portion refers to the part of the workpiece that passes through the first processing unit during the parking period; the over-processed time refers to the time that any point in the over-processed portion stays in the first processing unit; An elimination module is used to open the normally closed second processing unit with a preset processing intensity during the time period when the over-processed portion passes through the second processing unit; The second processing unit is used to eliminate at least a portion of the processing result of the first processing unit; the first processing unit and the second processing unit are sequentially arranged on the movement path of the workpiece; the preset processing intensity is a value positively correlated with the overprocessing time.

9. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method as described in any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1 to 7.

Images