CN111352403B - Process design method for rolling plate - Google Patents
Process design method for rolling plate Download PDFInfo
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- CN111352403B CN111352403B CN202010202960.1A CN202010202960A CN111352403B CN 111352403 B CN111352403 B CN 111352403B CN 202010202960 A CN202010202960 A CN 202010202960A CN 111352403 B CN111352403 B CN 111352403B
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- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by quality surveillance of production
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a process design method for rolling a plate, which comprises the following steps: the production and marketing system acquires order information of the plates and production capacity parameters of a plate production unit; the order information comprises a board variety and an order width, and the production capacity parameters comprise board specification design capacity and board weight design capacity; confirming a plate specification control parameter corresponding to order information according to the plate variety and the order width; according to the order width and the board specification control parameters, determining a board blank target width range and a board blank rated target width of the board; determining a target weight range of the plate blank according to the target width range of the plate blank; determining a slab target length range and a slab rated target length according to the slab target weight range and the slab target width range; the manufacturing execution system controls the production and the manufacture of the plate according to the parameters. The method can simultaneously improve the efficiency and accuracy of slab specification and weight calculation.
Description
Technical Field
The application relates to the technical field of plate rolling, in particular to a process design method for plate rolling.
Background
In the current rolling production of sheet and strip, such as the rolling production process of steel plates, customers obviously require the types, specifications and singles of products in orders, and the ordering requirements of the customers are more diversified. In the plate rolling process, the cold rolling unit can divide rolls and cut edges according to the requirements of customers, but in the process of continuously casting and producing the plate blanks, the specification and the weight of the raw plate blanks cannot be flexibly changed due to the production capacity, and if the specification and the weight of the plate blanks are frequently changed, the continuous casting and hot rolling production rhythm is seriously influenced, and the defect on the product quality is brought. Therefore, in the production process of the steel mill, the specification and the weight of the raw slab are relatively centralized and stable, so that the requirements of the production capacity and the order are required to be integrated, and the weight and the specification of the slab are comprehensively determined on the premise of meeting the production principle of the steel mill so as to meet the order requirement to the greatest extent.
The weight and specification of the current slab are generally calculated and determined manually, and are generally increased by 100-200mm on the basis of the width of an order as the width of the slab, and then the weight of the slab is obtained manually according to the order weight target value and the comprehensive yield estimated value of the slab. Then classifying orders according to the finished product sizes of a plurality of orders and the requirement of singleness, selecting a certain type of concentrated scheduling steelmaking plan, and scheduling production according to the issued plan without specific order correspondence in the slab production process. After the slab is produced, according to the actual weight of the slab, the specific requirements of the order are combined, and then the corresponding specific clients and the order are manually determined.
However, the weight and specification of the slab cannot be quantitatively, accurately and stably calculated by manual experience: the weight and specification of the slab calculated by different personnel for the same order are different according to the difference of experience, the data sources on which the manual calculation is based are different, the calculation accuracy is also questionable, and calculation errors are easy to generate. Inaccurate slab specifications and weight calculations will result in the slab failing to meet the order requirements, resulting in stock backlog, or significant cutting or stock-in-place sales in downstream processes, resulting in significant economic losses. On the other hand, with the continuous improvement of on-site production capacity and the expansion of production specifications, the conventional experience often becomes to limit the full play of the capacity of the production line, so that the actual production capacity is achieved, but the manual calculation is not considered, so that the capacity waste of the production line is caused. In view of the above, a new solution for the process design of rolling the plate is needed to improve the calculation efficiency and calculation accuracy of the specification and weight of the plate blank, reduce the economic loss caused by manual calculation errors, and improve the production capacity of the plate unit.
Disclosure of Invention
The invention provides a process design method for rolling a plate, which aims to solve or partially solve the technical problems of low efficiency and low calculation accuracy of manually calculating the specification and the weight of the plate blank.
In order to solve the technical problems, the invention provides a process design method for rolling a plate, which comprises the following steps:
the production and marketing system acquires order information of the plates and production capacity parameters of a plate production unit; the order information comprises a board variety and an order width, and the production capacity parameters comprise board specification design capacity and board weight design capacity;
the production and marketing system confirms the board specification control parameters corresponding to the order information according to the board variety and the order width;
the production and marketing system determines a plate blank target width range and a plate blank rated target width of the plate according to the order width and the plate specification control parameters;
the production and marketing system determines a target weight range of the slab according to the target width range of the slab;
the marketing system determines a slab target length range and a slab rated target length according to the slab target weight range and the slab target width range;
the pin production system sends the slab target weight range, the slab target width range, the slab target length range, the slab rated target width and the slab rated target length to the manufacturing execution system so that the manufacturing execution system controls the production and the manufacture of the plate according to the parameters.
Optionally, the sheet specification control parameters include: trimming quantity q, narrowing quantity p, hot rolling maximum fixed width quantity g, hot rolling fixed width target quantity s and hot rolling maximum widening quantity j of the whole process of the plate;
the production and marketing system determines a plate blank target width range and a plate blank rated target width of the plate according to the order width and the plate specification control parameter, and specifically comprises the following steps:
the marketing system determines that the target width range W of the slab is [ W ] 1 ,W 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein W is 1 ＝k+q+p-j，W 2 ＝k+q+p+g；
Nominal target width W of slab 0 ∈W。
Further, the rated target width W of the slab 0 ＝k+q+p+g。
According to the technical scheme, the board specification control parameters further comprise a minimum board blank production width value and a promotion value of the board blank width;
determining a nominal target width W of a slab 0 Minimum slab production width +i-slab width promotion amount; wherein, the value of i is W 0 ≤W 2 The largest integer value established.
According to the technical scheme, the specification design capability of the plate comprises the following steps: slab thickness, slab production minimum length, and slab production maximum length;
the board weight design capabilities include: a slab design weight range A, a slab lifting appliance bearing range B, a slab rolling unit feeding and discharging design weight range C, a slab rolling outer diameter limiting slab weight range D and a slab rolling comprehensive yield e;
the production and marketing system determines a target weight range of the plate blank according to the target width range of the plate blank, and specifically comprises the following steps:
the production and marketing system determines the initial weight range m= [ m ] of the plate blank according to the specification design capability of the plate material 1 ,m 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein m is 1 =slab thickness×w 1 Production of minimum Length X Density of Steel, m 2 =slab thickness×w 2 The X slab is used for producing the maximum length X steel density;
determining a target weight range M= [ M ] of the slab 1 ,M 2 ]Where m=a ∈b ∈c/e ∈d ∈m.
Further, the marketing system determines a target slab length range and a rated slab length according to the target slab weight range and the target slab width range, and specifically includes:
determining a target length range l= [ L ] of the slab 1 ,L 2 ]Wherein: l (L) 1 ＝M 1 /(slab thickness X W) 2 )；L 2 ＝M 2 /(slab thickness X W) 1 )；
Determining a nominal target length L of a slab 0 ＝M 2 /(slab thickness X W) 0 )。
In the above technical solution, the order information further includes a single-roll weight range h= [ h ] 1 ,h 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein h is 1 Is the minimum value of the weight of a single roll，h 2 Is the maximum value of the weight of a single roll, h 2 <m 1 ；
In determining the target weight range M= [ M ] 1 ,M 2 ]Thereafter, the method further comprises:
determining a cold rolling slitting number range r= [ r ] 1 ,r 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein: r is (r) 1 ＝[(M 2 ×e)/h 2 +1]，r 2 ＝[(M 2 ×e)/h 1 -1]Wherein, operator []Representing rounding;
determining the cold rolling slitting target number r 0 ＝r 1 ；
The production and marketing system sends the slab target weight range, the slab target width range, the slab target length range, the slab rated target width and the slab rated target length to the manufacturing execution system so that the manufacturing execution system controls the production and the manufacture of the plate according to the parameters, and the production and the manufacture method specifically comprise the following steps:
the pin production system is used for producing a plate blank target weight range, a plate blank target width range, a plate blank target length range, a plate blank rated target width, a plate blank rated target length and a cold rolling slitting target number r 0 And sending the parameters to a manufacturing execution system so that the manufacturing execution system controls the production and the manufacture of the plate according to the parameters.
Further, in determining the target number r of cold rolling coil separation 0 ＝r 1 Thereafter, the method further comprises:
according to the cold rolling cutting target number r 0 Determining the weight range u= [ u ] of the slab in the splitting state 1 ,u 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein u is 1 ＝(h 1 ×r 0 )/e，u 2 ＝(h 2 ×r 0 )/e；
Determining a target weight range M= [ M ] of the slab 1 ,M 2 ]The method specifically comprises the following steps:
the target weight range M=A.cndot.B.cndot.C/e.cndot.D.cndot.m.cndot.u of the slab is determined.
Based on the same inventive concept as the technical scheme, the invention also provides a production and marketing system for rolling the plate, wherein the production and marketing system comprises a production and manufacturing management package, and the production and manufacturing management package comprises:
the acquisition module is used for acquiring order information of the plates and production capacity parameters of the plate production unit; the order information comprises a board variety and an order width, and the production capacity parameters comprise board specification design capacity and board weight design capacity;
the board specification control parameter determining module is used for determining board specification control parameters corresponding to order information according to the board variety and the order width;
the slab width determining module is used for determining a slab target width range and a slab rated target width of the slab according to the ordering width and the slab specification control parameter;
the plate blank weight determining module is used for determining a plate blank target weight range according to the plate blank target width range by the production and marketing system;
the plate blank length determining module is used for determining the plate blank target length range and the plate blank rated target length according to the plate blank target weight range and the plate blank target width range by the marketing system;
and the sending module is used for sending the slab target weight range, the slab target width range, the slab target length range, the slab rated target width and the slab rated target length to the manufacturing execution system so that the manufacturing execution system controls the production and the manufacture of the plate according to the parameters.
Based on the same inventive concept as the technical scheme, the invention also provides an electronic terminal, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the steps of any process design method in the technical scheme when executing the program.
Through one or more technical schemes of the invention, the invention has the following beneficial effects or advantages:
the invention provides a process design method for rolling a plate, which is used for comprehensively calculating the target weight and the target specification of the plate blank automatically according to order information and the production capacity parameter of a plate production unit through secondary development in a production and marketing system. The automatic calculation in the production and marketing system can overcome the uncertainty caused by the influence of experience on manual calculation, avoid calculation errors, ensure the unified and reliable calculation data sources, and simultaneously improve the efficiency and accuracy of slab specification and weight calculation, thereby avoiding stock backlog and product economic loss caused by calculation errors.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 shows a flow chart of a process design method for rolling a sheet material in accordance with one embodiment of the invention;
fig. 2 shows a schematic diagram of a production and marketing system for rolling sheet material according to one embodiment of the invention.
Detailed Description
In order to make the technical solution more clearly understood by those skilled in the art, the following detailed description is made with reference to the accompanying drawings.
In order to solve the problems that the calculation efficiency and the precision are not high due to the fact that the specifications and the weight of the slab are calculated manually by experience, the estimated slab cannot completely meet the order requirement, stock backlog is caused, or the slab is forced to hang, and then cutting loss is carried out in a downstream process or stock is transferred to be sold, and the like. In an alternative embodiment, as shown in fig. 1, the inventor proposes a process design method for obtaining relevant parameters in a production and marketing system through programming, accurately calculating slab specification and weight according to order information, and accurately calculating the required slab specification and weight according to the principle of lowest maximum cost of products by considering order requirements and production line capability. The whole idea is as follows:
a process design method for rolling a plate comprises the following steps:
s1: the production and marketing system acquires order information of the plates and production capacity parameters of a plate production unit; the order information comprises a board variety and an order width, and the production capacity parameters comprise board specification design capacity and board weight design capacity;
s2: the production and marketing system confirms the board specification control parameters corresponding to the order information according to the board variety and the order width;
s3: the production and marketing system determines a plate blank target width range and a plate blank rated target width of the plate according to the order width and the plate specification control parameters;
s4: the production and marketing system determines a target weight range of the slab according to the target width range of the slab;
s5: the marketing system determines a slab target length range and a slab rated target length according to the slab target weight range and the slab target width range;
s6: the pin production system sends the slab target weight range, the slab target width range, the slab target length range, the slab rated target width and the slab rated target length to the manufacturing execution system so that the manufacturing execution system controls the production and the manufacture of the plate according to the parameters.
Specifically, at present, steel manufacturing enterprises are configured with a whole set of software scheme of enterprise resource planning ERP, sales personnel can receive and manage customer orders through a production and marketing system in the ERP, form contract information according to the customer orders, and send the contract information to a manufacturing execution MES system for production scheduling and execution of a production plan. When contract information is generated in the production and marketing system, the specification and weight of the slab need to be calculated according to the order requirements of the customer. In this embodiment, the slab refers to a continuous casting slab produced by continuous casting, and the slab is a hot-rolled sheet coil or a cold-rolled sheet coil rolled in the subsequent hot rolling or cold rolling. The sheet specification design capability in S1 refers to the production capability range of the length, width and thickness of a sheet blank and a sheet determined by continuous casting, hot rolling and cold rolling units, wherein the thickness of the sheet blank is usually fixed without calculation, and other specification parameters need to be calculated; the weight design capability of the plate refers to the weight capability range of the plate blank or the plate which can be produced by continuous casting, hot rolling and cold rolling units, such as the design weight range of the plate blank, the design weight bearing range of an overhead crane for lifting the plate blank, and the like. The sheet specification control parameters in S2 are sheet rolling production specification control amounts predetermined according to specific sheet types and ordering widths, such as trimming amounts, narrowing amounts, hot rolling maximum fixed width amounts, hot rolling fixed width target amounts, hot rolling maximum widening amounts and the like of each step of the sheet. When a new order enters the production and marketing system, the production and marketing system generates a product code according to the input plate variety and width, and then automatically acquires the plate specification control parameters corresponding to the product code. After the data in S1 and S2 are acquired, the production and marketing system automatically calculates the target specification and the target weight of the slab according to the steps of S3 to S5, automatically fills the calculation result in the contract information, and issues the calculation result to the Manufacturing Execution System (MES) for specific production planning.
According to the process design method provided by the embodiment, secondary development is performed in the production and marketing system, a data maintenance base table is created in the system, production line capacity data such as board specification design capacity data, board specification setting parameters and the like and control data are maintained in the system, so that the system can call the data at any time to participate in calculation, and then the specification and weight calculation data of the board blank are automatically filled in contract information and are issued to an MES system to participate in production organization.
The embodiment provides a process design method for rolling plates, which is used for comprehensively calculating the target weight and the target specification of the plate blank automatically according to order information and the production capacity parameters of a plate production unit through secondary development in a production and marketing system. The automatic calculation in the production and marketing system can overcome the uncertainty caused by the influence of experience on manual calculation, avoid calculation errors, ensure the unified and reliable calculation data sources, and simultaneously improve the efficiency and accuracy of slab specification and weight calculation, thereby avoiding stock backlog and product economic loss caused by calculation errors.
Next, a specific slab weight and specification calculation method will be described in detail, based on the same inventive concept as the previous embodiment, and in another alternative embodiment, the above-mentioned slab specification control parameters include: trimming quantity q, narrowing quantity p, hot rolling maximum fixed width quantity g, hot rolling fixed width target quantity s and hot rolling maximum widening quantity j of the whole process of the plate;
s3: the production and marketing system determines a plate blank target width range and a plate blank rated target width of the plate according to the order width and the plate specification control parameter, and specifically comprises the following steps:
s31: the marketing system determines that the target width range W of the slab is [ W ] 1 ,W 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein W is 1 ＝k+q+p-j，W 2 =k+q+p+g; nominal target width W of slab 0 ∈W。
The trimming amount q is the sum of trimming amounts of all working procedures of the plate in the whole production process; the plate specification control parameters are predetermined according to the width change of the plates of specific varieties and specifications in the plate rolling process, and when the production and marketing system calculates, the corresponding plate specification control parameters are called according to order information, so that the target width range of the plate blank is comprehensively determined. When determining the target width range of the slab, it is also necessary to ensure that the calculated target width range W of the slab is within the specification design capability range of the continuous casting slab, and the specification design capability of the slab is obtained in the steel making process design specification data table.
Optionally, the nominal target width W of the slab 0 The process control method comprises the steps of performing slab production control by taking the upper limit of the target width range of the slab as a target, and reducing the possibility of large economic losses caused by insufficient stock change of the width of the final finished product as far as possible.
In some cases, the width of the slab needs to consider the stacking of the continuous casting slab warehouse, and specific requirements are set for the rated target width of the slab, and the width promotion amount of the slab needs to be considered at the moment, so that the optional slab specification control parameters also comprise the minimum value of the slab production width and the slab width promotion amount;
determining a nominal target width W of a slab 0 Minimum slab production width +i-slab width promotion amount; wherein, the value of i is W 0 ≤W 2 The largest integer value established.
Namely, the method is characterized in that the rated target width of the slab is limited according to the width promotion amount of the slab during stacking, and the rated target width of the slab takes the maximum value in the range of the target width of the slab under the condition that the width promotion amount is satisfied.
After the slab width gauge is determined, the slab target weight range should be determined next, based on the inventive concepts of the foregoing embodiments, in yet another alternative embodiment, the slab gauge design capability includes: slab thickness, slab production minimum length, and slab production maximum length;
the board weight design capabilities include: a slab design weight range A, a slab lifting appliance bearing range B, a slab rolling unit feeding and discharging design weight range C, a slab rolling outer diameter limiting slab weight range D and a slab rolling comprehensive yield e;
s4: the production and marketing system determines a target weight range of the plate blank according to the target width range of the plate blank, and specifically comprises the following steps:
s41: the production and marketing system determines the initial weight range m= [ m ] of the plate blank according to the specification design capability of the plate material 1 ,m 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein m is 1 =slab thickness×w 1 Production of minimum Length X Density of Steel, m 2 =slab thickness×w 2 The X slab is used for producing the maximum length X steel density;
s42: determining a target weight range M= [ M ] of the slab 1 ,M 2 ]Where m=a ∈b ∈c/e ∈d ∈m.
Specifically, the weight design capability is determined by the machine set, and the weight design capability of each process can be obtained from the design specification of each process. For example, the slab design weight range A is the weight design capacity of the slab smelted by continuous casting, and A= { x epsilon R|A1 is less than or equal to x and less than or equal to A2}, and can be obtained in a steel-making process design specification; the bearing range B of the slab lifting appliance refers to the lifting weight design capacity of a crown block for lifting the slab; the design weight range in the plate rolling process can be obtained in a steel rolling design instruction, the steel rolling design instruction is converted into the weight range of the plate blank, the influence of the comprehensive yield e needs to be considered, the comprehensive yield e of each plate is comprehensively determined according to the actual specification of the plate, the end cutting and tail cutting quantity of the plate in the corresponding production process and other factors, and C/e is the weight range of the plate blank corresponding to the design weight range of the plate material feeding and the plate material discharging; d is the allowable weight range of the slab with the current specification determined according to the outer diameter limit of the upper line and the lower line of the plate rolling unit; for example, the outer diameter of a coil of steel of a certain coiling unit needs to be limited within 2.1 meters when the coil is off-line, so that the allowable weight range D of the plate blank, which can be smoothly off-line in the subsequent plate and strip rolling process, is comprehensively calculated according to the target width range of the plate blank determined by the steps and combining the inner diameter of the coil and the steel density. The weight range D of the corresponding plate rolling outer diameter limit slab under various width specifications can be calculated in advance and entered into a data maintenance base table in the production and marketing system together with A, B, C/e for recall in the calculation of the target weight of the slab.
When the target weight range of the slab is determined, the initial weight range M of the slab is calculated according to the minimum value and the maximum value of the target width range W of the slab determined in the process and the minimum value and the maximum value of the production length of the slab specified in the design specification of the steelmaking process, and then the weight ranges A, B, C/e, D and M are intersected according to a set operation method, namely the target weight range M of the slab should meet the requirements of the weight ranges A, B, C/e, D and M at the same time.
After the target width range W and the target weight range M of the slab are determined, since the thickness of the slab is fixed, the target length range of the slab should be confirmed next. Thus based on the same inventive concept as the previous embodiment, in yet another alternative embodiment, S5: the production and marketing system determines a target length range of the plate blank and a rated target length of the plate blank according to the target weight range of the plate blank and the target width range of the plate blank, and specifically comprises the following steps:
s51: determining a target length range l= [ L ] of the slab 1 ,L 2 ]Wherein: l (L) 1 ＝M 1 /(slab thickness X W) 2 )；L 2 ＝M 2 /(slab thickness X W) 1 )；
S52: determining a nominal target length L of a slab 0 ＝M 2 /(slab thickness X W) 0 )。
Wherein the nominal target length of the slab is controlled according to the upper limit in the length range.
Some customers consider the requirement of their own processing line or transportation, and the sheet rolls are explicitly required to be singled in the order, even part of the order requires a small singleton range. For such orders, the process of separating rolls is needed in the production process, and in order to accurately separate small rolls with single requirements of customers, the inventor provides a cutting principle of maximum roll weight after cutting through research so as to reduce economic loss caused by the error of separating rolls as much as possible. Thus, based on the same inventive concept as the previous embodiment, in another alternative embodiment, the order information further includes a single roll weight range h= [ h ] 1 ,h 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein h is 1 Is the minimum value of the weight of a single roll, h 2 Is the maximum value of the weight of a single roll, h 2 <m 1 ；
At S42: determining a target weight range M= [ M ] of the slab 1 ,M 2 ]Thereafter, the method further comprises:
s43: determining a cold rolling slitting number range r= [ r ] 1 ,r 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein: r is (r) 1 ＝[(M 2 ×e)/h 2 +1]，r 2 ＝[(M 2 ×e)/h 1 -1]Wherein, operator []Representing rounding;
s44: determining the cold rolling slitting target number r 0 ＝r 1 ；
S6: the production and marketing system sends the slab target weight range, the slab target width range, the slab target length range, the slab rated target width and the slab rated target length to the manufacturing execution system so that the manufacturing execution system controls the production and the manufacture of the plate according to the parameters, and the production and the manufacture method specifically comprise the following steps:
s61: the pin production system is used for producing a plate blank target weight range, a plate blank target width range, a plate blank target length range, a plate blank rated target width, a plate blank rated target length and a cold rolling slitting target number r 0 And sending the parameters to a manufacturing execution system so that the manufacturing execution system controls the production and the manufacture of the plate according to the parameters.
In general, when a sheet is rolled and produced, small rolls can be divided only by a cold rolling process, so after a target weight range M of a plate blank is determined, the cold rolling slitting number is calculated according to a single roll weight range required in an order, when a lower limit of the slitting number is calculated, the result data is rounded upwards, and when an upper limit of the slitting number is calculated, the result data is rounded downwards; e is the integrated yield corresponding to the current slab. After the calculation of the slitting number range is completed, the cold rolling slitting target number is determined as the lower limit value of the slitting number range according to the principle of maximum coil weight after slitting.
After determining the cold rolling cutting target number r 0 Later, it is necessary to verify r 0 Whether the optimal number of cuts is the optimal number of cuts, so as to avoid economic loss caused by that the product cannot be hung on an order due to the error of calculating the number of cuts. Therefore, further, the process design method further comprises the following steps:
s441: calculating the target number r of slitting by cold rolling 0 Determined slab weight range t, t= [ t ] 1 ,t 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,
t 1 ＝h 1 ×r 0 ×e；t 2 ＝h 1 ×r 0 ×e；
s442: judging whether t U M is not empty, if so, cold rolling and slitting the target number r 0 The optimal cutting number is obtained; if not, let r 0 ＝r 0 -1, repeating the determination of S46 until t n M is satisfied.
After determining the target number of cold rolled coils, it is necessary to verify again whether the calculation of the target weight of the slab is correct, so based on the same inventive concept as the previous embodiment, in a further alternative embodiment, further, at S44: determining the target number r of cold rolling coil separation 0 ＝r 1 Thereafter, the method further comprises:
s45: according to the cold rolling cutting target number r 0 Determining the weight range u= [ u ] of the slab in the splitting state 1 ,u 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein u is 1 ＝(h 1 ×r 0 )/e，u 2 ＝(h 2 ×r 0 )/e；
S42: determining a target weight range M= [ M ] of the slab 1 ,M 2 ]The method specifically comprises the following steps:
s421: the target weight range M=A.cndot.B.cndot.C/e.cndot.D.cndot.m.cndot.u of the slab is determined.
In particular according to coldRolling and dividing target number or optimal dividing number, reversely calculating and dividing the plate into r 0 In the rolled state, the corresponding slab weight range u is then calculated according to the intersection of the sets to determine that the weight range A, B, C/e, D, M, u can be met simultaneously, a final slab target weight range M is obtained, and then the slab target length range and the slab rated target length are calculated according to the final slab target weight range M.
In the foregoing set of embodiments, a process design method for rolling a sheet is provided, and in other alternative embodiments, as shown in fig. 2, a production and marketing system for rolling a sheet is provided, where the production and marketing system includes a production and manufacturing management package, and the production and manufacturing management package includes:
an acquisition module 10, configured to acquire order information of a board and a production capacity parameter of a board production unit; the order information comprises a board variety and an order width, and the production capacity parameters comprise board specification design capacity and board weight design capacity;
a board specification control parameter determining module 20 for determining board specification control parameters corresponding to order information according to the board variety and order width;
a slab width determining module 30 for determining a slab target width range and a slab rated target width of the slab according to the order width and the slab specification control parameter;
a slab weight determining module 40 for determining a slab target weight range based on the slab target width range by the marketing system;
a slab length determining module 50, wherein the production and marketing system determines a slab target length range and a slab rated target length according to the slab target weight range and the slab target width range;
and a transmitting module 60 for transmitting the slab target weight range, the slab target width range, the slab target length range, the slab nominal target width and the slab nominal target length to the manufacturing execution system so that the manufacturing execution system controls the production and manufacture of the plate material according to the parameters.
The production and marketing system is a system responsible for order management in the ERP whole solution, and the flag comprises a production and manufacturing management package for organizing contract information according to order information and issuing the contract information to a Manufacturing Execution System (MES) for actual production planning. The principle in the method is subjected to secondary programming development in a production and marketing system to obtain a corresponding algorithm, a corresponding data maintenance base table is established, and the specification design capacity of the plate, such as the thickness of the plate blank, the minimum length of the plate blank production and the maximum length of the plate blank production, is calculated; the plate weight design capability comprises a plate blank design weight range A, a plate blank lifting appliance bearing range B, a plate blank rolling unit feeding and discharging design weight range C, a plate blank rolling outer diameter limiting plate blank weight range D, a plate blank yield of each working procedure and a plate blank rolling comprehensive yield e; the sheet specification control parameters, such as the sheet full process trimming amount q, the narrowing amount p, the hot rolling maximum fixed width amount g, the hot rolling fixed width target amount s, the hot rolling maximum widening amount j, the sheet blank production width minimum value, the sheet blank width promotion amount and the like, are all calculated and required data are maintained into the system so as to be called when the thickness range and the specification range of the sheet blank are calculated. By developing and integrating the functions in the production and marketing system, the uncertainty caused by the influence of experience on manual calculation can be overcome, calculation errors are avoided, the unified and reliable calculation data sources are ensured, and the efficiency and accuracy of slab specification and weight calculation can be improved at the same time, so that stock backlog and product economic loss caused by calculation errors are avoided.
Based on the same inventive concept as the previous embodiments, the present invention further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of the process design method in the previous embodiments when executing the program.
Based on the same inventive concept as the previous embodiments, the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the process design method in the previous embodiments.
Through one or more embodiments of the present invention, the present invention has the following benefits or advantages:
the invention provides a process design method for rolling a plate, which is used for comprehensively calculating the target weight and the target specification of the plate blank automatically according to order information and the production capacity parameter of a plate production unit through secondary development in a production and marketing system. The automatic calculation in the production and marketing system can overcome the uncertainty caused by the influence of experience on manual calculation, avoid calculation errors, ensure the unified and reliable calculation data sources, and simultaneously improve the efficiency and accuracy of slab specification and weight calculation, thereby avoiding stock backlog and product economic loss caused by calculation errors.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.
Claims (9)
1. The process design method for rolling the plate is characterized by comprising the following steps of:
the production and marketing system acquires order information of the plates and production capacity parameters of a plate production unit; wherein the order information comprises a board variety and an order width, and the production capacity parameters comprise board specification design capacity and board weight design capacity;
the production and marketing system confirms the board specification control parameters corresponding to the order information according to the board variety and the order width;
the production and marketing system determines a plate blank target width range and a plate blank rated target width of the plate according to the order width and the plate specification control parameter;
the marketing system determines a target weight range of the slab according to the target width range of the slab;
the marketing system determines a slab target length range and a slab rated target length according to the slab target weight range and the slab target width range;
the production and marketing system sends the slab target weight range, the slab target width range, the slab target length range, the slab rated target width and the slab rated target length to a manufacturing execution system so that the manufacturing execution system controls the production and the manufacture of the plate according to the parameters;
wherein, panel specification control parameters include: trimming quantity q, narrowing quantity p, hot rolling maximum fixed width quantity g, hot rolling fixed width target quantity s and hot rolling maximum widening quantity j of the whole process of the plate;
the production and marketing system determines a slab target width range and a slab rated target width of the slab according to the order width and the slab specification control parameter, and specifically comprises the following steps:
the marketing system determines the target width range W of the slab to be [ W ] 1 ,W 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein W is 1 ＝k+q+p-j，W 2 ＝k+q+p+g；
The rated target width W of the slab 0 ∈W。
2. The process design method according to claim 1, wherein the nominal target width W of the slab 0 ＝k+q+p+g。
3. The process design method according to claim 1, wherein the sheet specification control parameters further include a minimum sheet bar production width and a sheet bar width promotion amount;
determining the nominal target width W of the slab 0 Minimum slab production width +i-slab width promotion amount; wherein the value of i is W 0 ≤W 2 The largest integer value established.
4. The process design method of claim 2, wherein the sheet specification design capability comprises: slab thickness, slab production minimum length, and slab production maximum length;
the board weight design capability includes: a slab design weight range A, a slab lifting appliance bearing range B, a slab rolling unit feeding and discharging design weight range C, a slab rolling outer diameter limiting slab weight range D and a slab rolling comprehensive yield e;
the production and marketing system determines a target weight range of the plate blank according to the target width range of the plate blank, and specifically comprises the following steps:
the production and marketing system determines an initial weight range m= [ m ] of the slab according to the specification design capability of the plate 1 ,m 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein m is 1 =slab thickness×w 1 Production of minimum Length X Density of Steel, m 2 =slab thickness×w 2 The X slab is used for producing the maximum length X steel density;
determining a target weight range M= [ M ] of the slab 1 ,M 2 ]Where m=a ∈b ∈c/e ∈d ∈m.
5. The process design method of claim 4, wherein the marketing system determines a target slab length range and a nominal slab length from the target slab weight range and the target slab width range, comprising:
determining the target length range l= [ L ] of the slab 1 ,L 2 ]Wherein: l (L) 1 ＝M 1 /(slab thickness X W) 2 )；L 2 ＝M 2 /(slab thickness X W) 1 )；
Determining the nominal target length L of the slab 0 ＝M 2 /(slab thickness X W) 0 )。
6. The process design method of claim 5, wherein the order information further comprises a single roll weight range h= [ h ] 1 ,h 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein h is 1 Is the minimum value of the weight of a single roll, h 2 Is the maximum value of the weight of a single roll, h 2 <m 1 ；
In the range M= [ M ] of the determined target weight of the slab 1 ,M 2 ]Thereafter, the method further comprises:
determining a cold rolling slitting number range r= [ r ] 1 ,r 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein: r is (r) 1 ＝[(M 2 ×e)/h 2 +1]，r 2 ＝[(M 2 ×e)/h 1 -1]Wherein, operator []Representing rounding;
determining the cold rolling slitting target number r 0 ＝r 1 ；
The production and marketing system sends the slab target weight range, the slab target width range, the slab target length range, the slab rated target width and the slab rated target length to a manufacturing execution system so that the manufacturing execution system controls the production and the manufacture of the plate according to the parameters, and the production and the manufacture method specifically comprises the following steps:
the production and marketing system divides the slab target weight range, the slab target width range, the slab target length range, the slab rated target width, the slab rated target length and the cold rolling slitting target number r 0 And sending the parameters to a manufacturing execution system so that the manufacturing execution system controls the production and the manufacture of the plate according to the parameters.
7. The process design method according to claim 6, wherein in said determining the cold rolling target number r 0 ＝r 1 Thereafter, the method further comprises:
according to the cold rolling slitting target number r 0 Determining the weight range u= [ u ] of the slab in the splitting state 1 ,u 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein u is 1 ＝(h 1 ×r 0 )/e，u 2 ＝(h 2 ×r 0 )/e；
The target weight range M= [ M ] of the slab is determined 1 ,M 2 ]The method specifically comprises the following steps:
the target weight range M=A.cndot.B.cndot.C/e.cndot.D.cndot.m.cndot.u of the slab is determined.
8. A production and marketing system for rolling sheet material, the production and marketing system comprising a production and manufacturing management package comprising:
the acquisition module is used for acquiring the order information of the plates and the production capacity parameters of the plate production unit; wherein the order information comprises a board variety and an order width, and the production capacity parameters comprise board specification design capacity and board weight design capacity;
the board specification control parameter determining module is used for determining board specification control parameters corresponding to the order information according to the board variety and the order width;
the slab width determining module is used for determining a slab target width range and a slab rated target width of the slab according to the order width and the slab specification control parameter;
the plate blank weight determining module is used for determining a plate blank target weight range according to the plate blank target width range by the marketing system;
the slab length determining module is used for determining a slab target length range and a slab rated target length according to the slab target weight range and the slab target width range by the marketing system;
the transmitting module is used for transmitting the slab target weight range, the slab target width range, the slab target length range, the slab rated target width and the slab rated target length to a manufacturing execution system so that the manufacturing execution system controls the production and the manufacture of the plate according to the parameters;
wherein, panel specification control parameters include: trimming quantity q, narrowing quantity p, hot rolling maximum fixed width quantity g, hot rolling fixed width target quantity s and hot rolling maximum widening quantity j of the whole process of the plate;
the marketing system determines the target width range W of the slab to be [ W ] 1 ,W 2 ]The method comprises the steps of carrying out a first treatment on the surface of the Wherein W is 1 ＝k+q+p-j，W 2 ＝k+q+p+g；
The rated target width W of the slab 0 ∈W。
9. An electronic terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the process design method of any one of claims 1-7 when the program is executed.
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| CN112974973A (en) * | 2021-02-09 | 2021-06-18 | 烟台中集来福士海洋工程有限公司 | Angle steel cutting control method and device |
| CN113554234A (en) * | 2021-07-27 | 2021-10-26 | 张玉丽 | Material striping method, computer equipment and storage medium |
| CN114985295B (en) * | 2022-06-20 | 2023-12-29 | 福建威而特旋压科技有限公司 | Automatic steel screening method based on stamping blanking width |
| CN116422698B (en) * | 2023-06-13 | 2023-09-26 | 昆山精诚得精密五金模具有限公司 | Cold rolling mill for metal processing |
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