Method and system for calculating processing cost of metal product under circulating production process

Abstract

The invention provides a method and a system for calculating the processing cost of a metal product under a circulating production process. The method comprises the following steps: setting a virtual productive cost center; setting a production auxiliary cost center; tracking and collecting actual production performance formed by processing the product by the production auxiliary cost center; according to the actual production, the workload of the processed product is calculated; according to the workload, calculating the calculation weight in the processing cost generated in the production auxiliary cost center, and sharing the cost to the product; and summarizing the cost according to the cost project, and recording the cost to a virtual productive cost center. According to the method, the cost composition of the product can reflect the actual manufacturing process more accurately, the problem of tracking and statistics of related elements of product cost change in the circulating production process is simplified, and the problem that the machining cost of a unit in the circulating production cannot reflect the actual machining condition of the product on the unit practically is solved.

Description

Technical Field

[0001] The present invention belongs to the field of processing cost calculation, and in particular, relates to a method and system for calculating the processing cost of metal products under a cyclic reciprocating production process. Background Art

[0002] In the manufacturing process of steel and nonferrous metals, the phenomenon of repetitive processing in the cold and hot rolling process is common. At present, the traditional ABC operation cost method requires a huge amount of work such as complicated definition of operations and setting of standard operation volume for cyclic processing in order to collect and track the variable factors of the product cost incurred in the processing process and solve the problem of tracking the input-output relationship of semi-finished products between upstream and downstream processes caused by the continuous conversion of input and output. The cost accounting method under the preset product process path model (such as SAP steel industry solution) cannot face the complexity of the actual processing path of products under the cyclic production process and the setting of processing standard costs. The above two solutions either have no effective implementation cases (such as ABC operation method), or need to be manually corrected during or after the cost accounting process or directly ignore the cost carry-over differences outside the standard processing path.

[0003] The patent document "A real-time cost accounting method and system based on manufacturing process" (CN115293734A) discloses a real-time cost analysis and accounting method covering multiple centers and dimensions, which supports the multi-source of cost calculation data business types, but does not take into account the situation of cyclical production and cannot collect the related factors of product processing cost changes under various different process paths.

[0004] Therefore, it is necessary to track and collect the related factors of changes in product processing costs under various process paths when steel and non-ferrous metal products are produced in a cycle of cold and hot rolling processes, and use this as a basis to transfer the costs incurred by the unit to the processed products. Summary of the invention

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a method and system for calculating the processing cost of metal products under a cyclic reciprocating production process.

[0006] A method for calculating the processing cost of metal products in a cyclic production process provided by the present invention is characterized by comprising:

[0007] Step S1: Setting up a virtual productive cost center;

[0008] Step S2: Set up production auxiliary cost center;

[0009] Step S3: Track and collect the actual production performance of the auxiliary production cost center in processing the product;

[0010] Step S4: Calculate the workload of the processed product based on the actual production performance;

[0011] Step S5: Calculate the weight of the processing cost incurred in the production auxiliary cost center according to the operation volume, and allocate the cost to the product;

[0012] Step S6: Summarize costs by cost item and record them in the virtual productive cost center.

[0013] Preferably, the virtual productive cost center is based on a large production unit and includes several auxiliary production cost centers.

[0014] The large production unit is a hot rolling plant or a cold rolling area, including a rated number of processing units.

[0015] The processing unit performs cyclical production on the product to generate production results.

[0016] The virtual productive cost center records the actual production performance of cyclical production.

[0017] The production performance includes input-output, defective and scrap judgment and material correction.

[0018] The auxiliary production cost center includes a rated number of processing units corresponding to the production process.

[0019] The production auxiliary cost center is based on the processing unit, and records the costs and expenses incurred in the current period, the production performance of the processed products, and the workload incurred when processing the products.

[0020] The production auxiliary cost center belongs to and only belongs to one virtual production cost center.

[0021] In step S5, the calculation weight of each product in the processing cost incurred by the auxiliary production cost center is calculated, and the cost incurred by the auxiliary production cost center in the current period is allocated to the product accordingly.

[0022] In step S6, the cost of each product under each production auxiliary cost center is summarized according to cost items.

[0023] Preferably, step S3 comprises:

[0024] Attribution judgment step: judge the attribution of the imported materials. If the imported materials are not semi-finished products of the virtual productive cost center to which the auxiliary production cost center belongs, the first input-output performance shall be included in the virtual productive cost center to which the auxiliary production cost center belongs. If the imported materials are semi-finished products produced internally by the virtual productive cost center to which the auxiliary production cost center belongs, execute the nature judgment step.

[0025] Nature judgment step: judge the nature of the export materials and record the second input-output performance into the virtual productive cost center to which the production auxiliary cost center belongs.

[0026] Quality judgment steps: Determine whether the export materials are defective or scrapped, and record the actual output performance of the third input into the virtual productive cost center to which the production auxiliary cost center belongs.

[0027] The first input-output performance is the production performance collected according to the input-output method, including the consumption account of imported materials and the output account of exported materials.

[0028] The third input-output performance is the production performance collected according to the quality judgment method, including the decrease account of genuine materials before the judgment and the increase account of defective or waste materials after the judgment.

[0029] The property determination step comprises:

[0030] If the export material is a finished product, the second input-output performance is the production performance collected according to the input-output method, including the consumption account of the import material and the output account of the export material;

[0031] If the exported material is not a finished product, the second input-output performance is the production performance collected in the form of material correction performance, including the weight correction account of the imported material.

[0032] The finished product properties of the export materials are identified and indicated by the production MES system as required.

[0033] Preferably, the parameters of the production performance include output, unit throughput, operation time, processing passes, annealing process, oiling amount, packaging method, nitrogen use indication, cleaning or not, pickling mark and passivation mark.

[0034] The step S4 comprises:

[0035] Step S4.1: Determine the collection method. If the actual production performance is collected by the input-output method, calculate the output product operation volume according to the export material weight. If it is not the actual production performance collected by the input-output method, execute step S4.2;

[0036] Step S4.2: Determine the collection method. If it is the actual production performance collected by the material correction method, calculate the material operation amount according to the corrected weight of the inlet material. If it is not the actual production performance collected by the material correction method, execute step S4.3;

[0037] Step S4.3: According to the relevant conversion rules, the amount of auxiliary materials used corresponding to the special process is calculated and converted as the operation amount based on the actual production performance. For the actual production performance collected by the quality judgment method, the operation amount is not calculated;

[0038] Step S4.4: The calculated and converted workload is recorded in the corresponding production auxiliary cost center.

[0039] The production MES accounting method pre-set in step S4.4 cooperates with the quality judgment system to collect parameters for generating actual performance, and the cost accounting system receives the results.

[0040] The workload includes unit throughput, operation time, material status category and auxiliary material usage corresponding to special processes.

[0041] The auxiliary material usage includes electricity consumption, nitrogen consumption and oil coating amount.

[0042] According to the present invention, a system for calculating the processing cost of metal products in a cyclic reciprocating production process includes:

[0043] Module M1: Setting up virtual productive cost center;

[0044] Module M2: Set up production auxiliary cost center;

[0045] Module M3: Track and collect the production performance of the auxiliary production cost center in processing the product;

[0046] Module M4: Calculate the workload of the processed products based on production performance;

[0047] Module M5: Calculate the weight of the processing cost incurred in the auxiliary production cost center according to the workload, and allocate the cost to the product;

[0048] Module M6: Summarize costs by cost item and record them in the virtual productive cost center.

[0049] Preferably, the virtual productive cost center is based on a large production unit and includes several auxiliary production cost centers.

[0050] The large production unit is a hot rolling plant or a cold rolling area, including a rated number of processing units.

[0051] The processing unit performs cyclical production on the product to generate production results.

[0052] The virtual productive cost center records the actual production performance of cyclical production.

[0053] The production performance includes input-output, defective and scrap judgment and material correction.

[0054] The auxiliary production cost center includes a rated number of processing units corresponding to the production process.

[0055] The production auxiliary cost center is based on the processing unit, and records the costs and expenses incurred in the current period, the production performance of the processed products, and the workload incurred when processing the products.

[0056] The production auxiliary cost center belongs to and only belongs to one virtual production cost center.

[0057] The module M5 calculates the weight of each product in the processing cost incurred by the auxiliary production cost center, and allocates the cost incurred by the auxiliary production cost center in the current period to the product accordingly.

[0058] The module M6 summarizes the cost of each product under each production auxiliary cost center by cost item.

[0059] Preferably, the module M3 comprises:

[0060] Attribution judgment module: judge the attribution of the imported materials. If the imported materials are not the semi-finished products of the virtual productive cost center to which the auxiliary production cost center belongs, the first input-output performance will be included in the virtual productive cost center to which the auxiliary production cost center belongs. If the imported materials are the semi-finished products produced internally by the virtual productive cost center to which the auxiliary production cost center belongs, the nature judgment module will be executed.

[0061] Nature judgment module: judge the nature of export materials and record the second input-output performance into the virtual productive cost center to which the production auxiliary cost center belongs.

[0062] Quality judgment module: judge the export materials as defective or scrapped, and record the actual output performance of the third input into the virtual productive cost center to which the auxiliary production cost center belongs.

[0063] The first input-output performance is the production performance collected according to the input-output method, including the consumption account of imported materials and the output account of exported materials.

[0064] The third input-output performance is the production performance collected according to the quality judgment method, including the decrease account of genuine materials before the judgment and the increase account of defective or waste materials after the judgment.

[0065] The property judgment module comprises:

[0066] If the export material is a finished product, the second input-output performance is the production performance collected according to the input-output method, including the consumption account of the import material and the output account of the export material;

[0067] If the exported material is not a finished product, the second input-output performance is the production performance collected in the form of material correction performance, including the weight correction account of the imported material.

[0068] The finished product properties of the export materials are identified and indicated by the production MES system as required.

[0069] Preferably, the parameters of the production performance include output, unit throughput, operation time, processing passes, annealing process, oiling amount, packaging method, nitrogen use indication, cleaning or not, pickling mark and passivation mark.

[0070] The module M4 comprises:

[0071] Module M4.1: Determine the collection method. If the actual production performance is collected by input-output method, the output product operation volume is calculated according to the weight of the export materials. If the actual production performance is not collected by input-output method, module M4.2 is triggered.

[0072] Module M4.2: Determine the collection method. If it is the actual production performance collected by the material correction method, the material operation volume is calculated according to the corrected weight of the inlet material. If it is not the actual production performance collected by the material correction method, module M4.3 is triggered;

[0073] Module M4.3: According to the relevant conversion rules, the amount of auxiliary materials used for the corresponding special process is calculated and converted as the workload based on the actual production performance. For the actual production performance collected by the quality judgment method, the workload is not calculated;

[0074] Module M4.4: The calculated and converted workload is recorded in the corresponding production auxiliary cost center.

[0075] The production MES accounting method pre-set in the module M4.4 cooperates with the quality judgment system to collect parameters for generating actual performance, and the cost accounting system receives the results.

[0076] The workload includes unit throughput, operation time, material status category and auxiliary material usage corresponding to special processes.

[0077] The auxiliary material usage includes electricity consumption, nitrogen consumption and oil coating amount.

[0078] According to a computer-readable storage medium storing a computer program provided by the present invention, when the computer program is executed by a processor, the steps of the method for calculating the processing cost of metal products under the cyclic reciprocating production process are implemented.

[0079] An electronic device provided according to the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the steps of the method for calculating the processing cost of metal products under the cyclic reciprocating production process are implemented.

[0080] Compared with the prior art, the present invention has the following beneficial effects:

[0081] 1. The present invention solves the matching problem between cost flow and production flow, so that the cost structure of the product more accurately reflects the actual manufacturing process, and simplifies the difficult problem of tracking and counting the relevant factors of product cost changes in the cyclical production process.

[0082] 2. The present invention solves the problem of tracking the input-output relationship between imported semi-finished products and exported semi-finished products due to the continuous cycle of input-output by setting up a virtual productive cost center and a production auxiliary cost center.

[0083] 3. The present invention solves the problem that the processing costs incurred by the unit in reciprocating production cannot truly reflect the actual processing situation of the products on the unit by adopting a method of converting the production performance of the auxiliary production cost center to calculate the relevant workload incurred in processing the products and using this as the basis for transferring the processing costs and allocating them to the products. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0085] Figure 1 Schematic diagram of the calculation method for the processing cost of metal products under a cyclical production process.

[0086] Figure 2 A schematic diagram of the process flow for collecting production performance of the unit.

[0087] Figure 3 This is a schematic diagram of the unit workload collection process. DETAILED DESCRIPTION

[0088] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0089] According to a method for calculating the processing cost of metal products under a cyclic reciprocating production process provided by the present invention, Figure 1 For example, including:

[0090] Step S1: Set up a virtual productive cost center and define its main attributes as follows:

[0091] The virtual productive cost center is based on a large production unit (such as a hot rolling plant or a cold rolling area), under which there are several processing units, which will produce products repeatedly. All kinds of production performance (including input-output, defective and scrap judgment, material correction, etc.) in the reciprocating production are recorded under the virtual productive cost center.

[0092] Output, unit throughput, operation time, processing passes, annealing process, oiling amount, packaging method, nitrogen indication, cleaning, pickling mark, passivation mark, etc. These performance parameters or performance parameter combinations can better reflect the changes in various processing costs of the unit under different production processes, and can reasonably allocate the processing costs based on these parameters or parameter combinations.

[0093] Generally, the costs of electricity, rolling oil, roll consumption, etc. are allocated according to the rolling volume of different products. However, under the reciprocating production process, different materials may be processed in different passes in the rolling mill, which will result in the allocation of these processing costs not being based on a more reasonable cost driver, i.e. rolling time, causing the defect of unreasonable transfer of these processing costs.

[0094] When materials pass through the box annealing furnace, the power consumption is related to the amount of materials passing through the box annealing furnace. In general, the amount of materials passing through is selected as the workload, which can reflect the increase or decrease of power consumption to a certain extent. But in fact, the change of power consumption is more related to the material state category. The power consumption standard of H-state or O-state materials is obviously different from that of other non-H-state or non-O-state materials.

[0095] In more preferred examples, it is considered that the "rolling pass" or processing pass in the cold rolling mill reflects the number of times the input coil is repeatedly rolled in the rolling mill, and the "rolling time" or operation time reflects the rolling time of the input coil in the rolling mill. Therefore, these two performance parameters can better reflect the cost changes of the rolling mill, such as electricity, rolling oil, and roll consumption.

[0096] The virtual productive cost center includes several production auxiliary cost centers. The virtual productive cost center does not record the costs incurred in product processing.

[0097] Step S2: Set up the production auxiliary cost center and define its main attributes as follows:

[0098] The production auxiliary cost center is mainly set up with the processing units under the large production unit. It is mainly responsible for collecting the costs and expenses incurred in the current period, the production performance of the processed products, the workload incurred when processing the products, etc.

[0099] A production auxiliary cost center belongs to and only belongs to a certain virtual production cost center.

[0100] In more preferred examples, the hot-rolled aluminum coil is further processed in the cold rolling area, and then the cold-rolled finished aluminum coil is finally formed after the cold rolling unit rolling, air cushion annealing or box annealing, re-coil trimming and other units are cyclically produced. The above-mentioned cold rolling area is set as a virtual production cost center, which has four production auxiliary cost center units such as cold rolling mill, air cushion annealing, box annealing, and re-coil trimming.

[0101] By setting up virtual productive cost centers and production auxiliary cost centers, the process of cyclical production among units in a large production unit according to the input-output model is converted into a process in which materials are formally processed and produced among units in a large production unit until the final finished product is output, thus solving the problem of tracking the input-output relationship between imported semi-finished products and exported semi-finished products caused by the continuous cycle of input-output.

[0102] Step S3: Track and collect the actual production performance of the auxiliary production cost center in processing the product.

[0103] The step S3 comprises the following steps:

[0104] According to the different situations of imported and exported materials, three production performance collection methods are set up respectively, namely "input-output", "material performance correction" and "material quality judgment and scrap judgment".

[0105] Step S3.1: If the incoming material is not a semi-finished product of the virtual productive cost center to which the auxiliary production cost center belongs, the actual performance is collected according to the input-output method to form a consumption account for the incoming material and an output account for the semi-finished product of the outgoing material; and the input-output actual performance is recorded under the virtual productive cost center to which the auxiliary production cost center belongs.

[0106] Step S3.2: If the input material is a product produced internally by the virtual productive cost center to which the production auxiliary cost center belongs, then:

[0107] Step S3.2.1: If the export material is a finished product (identified and indicated by the production MES system as required), the actual performance is collected according to the input-output method to form a consumption account for the import material and an output account for the export material, and it is recorded in the virtual productive cost center to which the production auxiliary cost center belongs.

[0108] For a cold rolling mill, if the input material is a product produced by a production line other than the virtual productive cost center to which the mill belongs (such as a hot-rolled coil product), the "input-output" method must be selected to collect production performance. Otherwise, the output products of the mill will not be collected (different mills have their own corresponding output products, including product categories, product attributes, etc. For cold rolling mills, the corresponding output products are semi-finished products, i.e. hard rolled coils) and their output, and it will also be impossible to further track the subsequent processing of the output product, the collection of performance, and the allocation of the mill processing costs on the output product.

[0109] Step S3.2.2: If the exported material is not a finished product (identified and indicated by the production MES system as required), it is collected according to the material correction performance method to form a weight correction account for the imported material; and it is included in the virtual productive cost center to which the production auxiliary cost center belongs.

[0110] If the input material is the product produced by other units in the virtual productive cost center to which the unit belongs, the "material performance correction" method must be selected to collect the production performance. Otherwise, the production performance of various products processed by the unit will not be collected, resulting in defects such as the inability to more reasonably separate the processing costs of the unit according to the corresponding processing material properties.

[0111] Through a pre-set identification mechanism, it is determined whether each unit is performing initial processing or non-initial processing of the incoming materials, and the correct method of collecting production performance is selected, whether it is "input-output" or "material performance correction", so as to correctly identify the initial processing scenario of the incoming materials by the unit and collect the corresponding output products and their output.

[0112] Step S3.3: If the export materials are judged to be defective or scrap, the actual performance is collected according to the quality judgment method, forming an account for the reduction of genuine materials before the judgment and an account for the increase of defective or scrap materials after the judgment, and it is recorded in the virtual productive cost center to which the production auxiliary cost center belongs.

[0113] If the exported materials are judged to be inferior or scrap, the "material judgment is inferior or scrap" method must be selected to collect production performance. Otherwise, the unit's scrap volume, reduced amount of genuine products, etc. cannot be collected in time, resulting in many defects such as affecting the unit's recovery rate calculation and diluting processing costs (the amount of genuine products has not decreased).

[0114] At the same time, by identifying whether the export materials thrown by the production MES are finished products or unfinished products, and correctly selecting the method of collecting production performance, whether it is "input-output" or "material performance correction", the unit's cyclical processing scenarios of input materials can be correctly identified, and the corresponding products and their processing quantities can be collected.

[0115] When steel and nonferrous metal products are produced repeatedly in the cold and hot rolling processes, the related factors of the changes in product processing costs under various process paths are tracked and collected, and based on this, the costs incurred by the unit are transferred to the processed products, solving the matching problem between the cost flow and the production flow, and making the cost structure of the product more accurately reflect the actual manufacturing process.

[0116] Step S4: Calculate the workload of each auxiliary production cost center on the processed products based on its actual production performance.

[0117] The type of operation volume can be based on the actual cost accounting requirements, such as the unit throughput, operation time, the usage of auxiliary materials corresponding to certain special processes (such as electricity consumption, nitrogen consumption, oil coating amount), etc.

[0118] In more preferred examples, in the box annealing furnace, choosing to collect "material state category" as the workload, and combining the material state category with the consumption standard of electricity consumption, can better reflect the cost occupancy ratio and final allocation result of the box annealing furnace electricity consumption under different material state categories.

[0119] The step S4 comprises:

[0120] For production performance collected using the input-output method, the workload of output products is calculated based on the weight of exported materials and recorded in the corresponding production auxiliary cost center.

[0121] For production performance collected by material correction, the material workload is calculated according to the corrected weight of the incoming material and recorded in the corresponding production auxiliary cost center.

[0122] The production performance collected by the quality judgment method does not include the workload.

[0123] According to the relevant conversion rules, the corresponding special process's auxiliary material usage and other operating quantities are calculated and converted based on actual production performance, and included in the corresponding production auxiliary cost center.

[0124] In more preferred examples, the material process symbols and parameters of the air cushion annealing unit are collected, processed and converted through the pre-set production MES accounting method, and the results are received by the cost accounting system, thereby collecting different production performance parameters of the unit under the two processes of pickling and non-pickling of the air cushion annealing unit, such as the air cushion annealing unit, to facilitate the calculation of the reasonable allocation of the cost of pickling auxiliary materials on the processed objects.

[0125] By cooperating with the quality judgment system and following the agreed material judgment logic, the actual performance of the reduction of genuine products and the increase of defective products is collected. Therefore, it is necessary to collect the actual performance generated by the defective and scrap judgment business, track the changes in the amount of defective and genuine products, and facilitate the calculation of recovery rate, cost sharing and other needs.

[0126] By adopting the method of converting the production performance of the auxiliary production cost center to calculate the relevant workload incurred in processing the products and taking this as the basis for transferring the processing costs and allocating them to the products, the matching of cost flow and production flow is achieved, the problem of tracking and counting the relevant factors of product cost changes in the repetitive production process is simplified, and the problem that the processing costs incurred by the units in the repetitive production cannot effectively reflect the actual processing situation of the products on the units is solved.

[0127] Step S5: Calculate the weight of each product in the processing cost incurred by the auxiliary production cost center based on the workload, and allocate the current cost incurred by each auxiliary production cost center to the product accordingly.

[0128] Step S6: Summarize the cost of each product under each production auxiliary cost center by cost item and record it in the virtual production cost center.

[0129] In more preferred examples, for example, when hot-rolled aluminum coils are processed in the cold rolling area, the initial output performance, cyclic processing performance, and scrap judgment performance of each unit for the aluminum coils in the cold rolling process can be calculated based on the collected production business type, performance parameters, product type, etc., including the unit's throughput, output, pickling volume, scrap volume, genuine product adjustment volume, etc., and recorded in the production auxiliary cost center and the virtual productive cost center respectively.

[0130] The present invention also provides a system for calculating the processing cost of metal products under a cyclic reciprocating production process. The system for calculating the processing cost of metal products under the cyclic reciprocating production process can be realized by executing the process steps of the method for calculating the processing cost of metal products under the cyclic reciprocating production process, that is, those skilled in the art can understand the method for calculating the processing cost of metal products under the cyclic reciprocating production process as a preferred implementation of the system for calculating the processing cost of metal products under the cyclic reciprocating production process.

[0131] Those skilled in the art know that, in addition to realizing the system and its various devices, modules, and units provided by the present invention in a purely computer-readable program code, it is entirely possible to realize the same functions in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered as a hardware component, and the devices, modules, and units included therein for realizing various functions can also be regarded as structures within the hardware component; the devices, modules, and units for realizing various functions can also be regarded as both software modules for realizing the method and structures within the hardware component.

[0132] According to the present invention, a system for calculating the processing cost of metal products in a cyclic reciprocating production process includes:

[0133] Module M1: Setting up virtual productive cost center;

[0134] Module M2: Set up production auxiliary cost center;

[0135] Module M3: Track and collect the production performance of the auxiliary production cost center in processing the product;

[0136] Module M4: Calculate the workload of the processed products based on production performance;

[0137] Module M5: Calculate the weight of the processing cost incurred in the auxiliary production cost center according to the workload, and allocate the cost to the product;

[0138] Module M6: Summarize costs by cost item and record them in the virtual productive cost center.

[0139] In more preferred examples, the virtual productive cost center is based on a large production unit, including several auxiliary production cost centers.

[0140] The large production unit is a hot rolling plant or a cold rolling area, including a rated number of processing units.

[0141] The processing unit performs cyclical production on the product to generate production results.

[0142] The virtual productive cost center records the actual production performance of cyclical production.

[0143] The production performance includes input-output, defective and scrap judgment and material correction.

[0144] The auxiliary production cost center includes a rated number of processing units corresponding to the production process.

[0145] The production auxiliary cost center is based on the processing unit, and records the costs and expenses incurred in the current period, the production performance of the processed products, and the workload incurred when processing the products.

[0146] The production auxiliary cost center belongs to and only belongs to one virtual production cost center.

[0147] The module M5 calculates the weight of each product in the processing cost incurred by the auxiliary production cost center, and allocates the cost incurred by the auxiliary production cost center in the current period to the product accordingly.

[0148] The module M6 summarizes the cost of each product under each production auxiliary cost center by cost item.

[0149] In more preferred embodiments, the module M3 includes:

[0150] Attribution judgment module: judge the attribution of the imported materials. If the imported materials are not the semi-finished products of the virtual productive cost center to which the auxiliary production cost center belongs, the first input-output performance will be included in the virtual productive cost center to which the auxiliary production cost center belongs. If the imported materials are the semi-finished products produced internally by the virtual productive cost center to which the auxiliary production cost center belongs, the nature judgment module will be executed.

[0151] Nature judgment module: judge the nature of export materials and record the second input-output performance into the virtual productive cost center to which the production auxiliary cost center belongs.

[0152] Quality judgment module: judge the export materials as defective or scrapped, and record the actual output performance of the third input into the virtual productive cost center to which the auxiliary production cost center belongs.

[0153] The first input-output performance is the production performance collected according to the input-output method, including the consumption account of imported materials and the output account of exported materials.

[0154] The third input-output performance is the production performance collected according to the quality judgment method, including the decrease account of genuine materials before the judgment and the increase account of defective or waste materials after the judgment.

[0155] The property judgment module comprises:

[0156] If the export material is a finished product, the second input-output performance is the production performance collected according to the input-output method, including the consumption account of the import material and the output account of the export material;

[0157] If the exported material is not a finished product, the second input-output performance is the production performance collected in the form of material correction performance, including the weight correction account of the imported material.

[0158] The finished product properties of the export materials are identified and indicated by the production MES system as required.

[0159] In more preferred examples, the parameters of the production performance include output, unit throughput, operation time, processing passes, annealing process, oiling amount, packaging method, nitrogen indication, cleaning, pickling mark and passivation mark.

[0160] The module M4 comprises:

[0161] Module M4.1: Determine the collection method. If the actual production performance is collected by input-output method, the output product operation volume is calculated according to the weight of the export materials. If the actual production performance is not collected by input-output method, module M4.2 is triggered.

[0162] Module M4.2: Determine the collection method. If it is the actual production performance collected by the material correction method, the material operation volume is calculated according to the corrected weight of the inlet material. If it is not the actual production performance collected by the material correction method, module M4.3 is triggered;

[0163] Module M4.3: According to the relevant conversion rules, the amount of auxiliary materials used for the corresponding special process is calculated and converted as the workload based on the actual production performance. For the actual production performance collected by the quality judgment method, the workload is not calculated;

[0164] Module M4.4: The calculated and converted workload is recorded in the corresponding production auxiliary cost center.

[0165] The production MES accounting method pre-set in the module M4.4 cooperates with the quality judgment system to collect parameters for generating actual performance, and the cost accounting system receives the results.

[0166] The workload includes unit throughput, operation time, material status category and auxiliary material usage corresponding to special processes.

[0167] The auxiliary material usage includes electricity consumption, nitrogen consumption and oil coating amount.

[0168] According to a computer-readable storage medium storing a computer program provided by the present invention, when the computer program is executed by a processor, the steps of the method for calculating the processing cost of metal products under the cyclic reciprocating production process are implemented.

[0169] An electronic device provided according to the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the steps of the method for calculating the processing cost of metal products under the cyclic reciprocating production process are implemented.

[0170] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A method for calculating the processing cost of metal products under a cyclic production process, characterized in that: include: Step S1: Setting up a virtual productive cost center; Step S2: Set up production auxiliary cost center; Step S3: Track and collect the actual production performance of the auxiliary production cost center in processing the product; Step S4: Calculate the workload of the processed product based on the actual production performance; Step S5: Calculate the weight of the processing cost incurred in the production auxiliary cost center according to the operation volume, and allocate the cost to the product; Step S6: Summarize costs by cost item and record them in the virtual productive cost center.

2. The method for calculating the processing cost of metal products under the cyclic reciprocating production process according to claim 1 is characterized in that: The virtual production cost center is based on a large production unit and includes several auxiliary production cost centers. The large production unit is a hot rolling plant or a cold rolling area, including a rated number of processing units; The processing unit performs cyclical production of the product to generate production results; The virtual productive cost center records the actual production performance of cyclical production; The production performance includes input-output, defective and scrap judgment and material correction; The production auxiliary cost center includes a rated number of processing units corresponding to the production process; The production auxiliary cost center is mainly based on the processing unit, recording the costs and expenses incurred during the period, the actual production performance of the processed products and the workload incurred when processing the products; The production auxiliary cost center belongs to and only belongs to one virtual production cost center; In step S5, the weight of each product in the processing cost incurred by the auxiliary production cost center is calculated, and the cost incurred by the auxiliary production cost center in the current period is allocated to the product accordingly; In step S6, the cost of each product under each production auxiliary cost center is summarized according to cost items.

3. The method for calculating the processing cost of metal products under the cyclic reciprocating production process according to claim 1 is characterized in that: The step S3 comprises: Attribution judgment step: judge the attribution of the input materials. If the input materials are not semi-finished products of the virtual productive cost center to which the production auxiliary cost center belongs, the first input-output performance shall be included in the virtual productive cost center to which the production auxiliary cost center belongs. If the input materials are semi-finished products produced internally by the virtual productive cost center to which the production auxiliary cost center belongs, execute the property judgment step. Nature judgment step: judge the nature of the export material and record the second input-output performance into the virtual productive cost center to which the production auxiliary cost center belongs; Quality judgment step: judge the export materials as inferior or scrapped, and include the actual output of the third input into the virtual productive cost center to which the auxiliary production cost center belongs; The first input-output performance is the production performance collected in accordance with the input-output method, including the consumption account of imported materials and the output account of exported materials; The third input-output performance is the production performance collected according to the quality determination method, including the decrease account of the quality materials before the determination and the increase account of the defective or waste materials after the determination; The property determination step comprises: If the export material is a finished product, the second input-output performance is the production performance collected according to the input-output method, including the consumption account of the import material and the output account of the export material; If the exported material is not a finished product, the second input-output performance is the production performance collected in the material correction performance method, including the weight correction account of the imported material; The finished product properties of the export materials are identified and indicated by the production MES system as required.

4. The method for calculating the processing cost of metal products under the cyclic reciprocating production process according to claim 1 is characterized in that: The parameters of the production performance include output, unit throughput, operation time, processing passes, annealing process, oiling amount, packaging method, nitrogen indication, cleaning, pickling mark and passivation mark; The step S4 comprises: Step S4.1: Determine the collection method. If the actual production performance is collected by the input-output method, calculate the output product operation volume according to the weight of the export material. If it is not the actual production performance collected by the input-output method, execute step S4.2; Step S4.2: Determine the collection method. If it is the actual production performance collected by the material correction method, calculate the material operation amount according to the corrected weight of the inlet material. If it is not the actual production performance collected by the material correction method, execute step S4.3; Step S4.3: According to the relevant conversion rules, the amount of auxiliary materials used corresponding to the special process is calculated and converted as the operation amount based on the actual production performance. For the actual production performance collected by the quality judgment method, the operation amount is not calculated; Step S4.4: The calculated and converted workload is recorded in the corresponding production auxiliary cost center; The production MES accounting method pre-set in step S4.4 cooperates with the quality judgment system to collect parameters for generating actual performance, and the cost accounting system receives the results; The operation volume includes the unit throughput, operation time, material status category and auxiliary material usage corresponding to the special process; The auxiliary material usage includes electricity consumption, nitrogen consumption and oil coating amount.

5. A system for calculating the processing cost of metal products under a cyclic production process, characterized in that: include: Module M1: Setting up virtual productive cost center; Module M2: Set up production auxiliary cost center; Module M3: Track and collect the production performance of the auxiliary production cost center in processing the product; Module M4: Calculate the workload of the processed products based on production performance; Module M5: Calculate the weight of the processing cost incurred in the auxiliary production cost center according to the workload, and allocate the cost to the product; Module M6: Summarize costs by cost item and record them in the virtual productive cost center.

6. The system for calculating the processing cost of metal products under the cyclic reciprocating production process according to claim 5, characterized in that: The virtual production cost center is based on a large production unit and includes several auxiliary production cost centers. The large production unit is a hot rolling plant or a cold rolling area, including a rated number of processing units; The processing unit performs cyclical production of the product to generate production results; The virtual productive cost center records the actual production performance of cyclical production; The production performance includes input-output, defective and scrap judgment and material correction; The production auxiliary cost center includes cold rolling mill, air cushion annealing, box annealing and recoiling and trimming unit; The production auxiliary cost center includes a rated number of processing units corresponding to the production process; The production auxiliary cost center belongs to and only belongs to one virtual production cost center; The module M5 calculates the weight of each product in the processing cost incurred by the auxiliary production cost center, and allocates the cost incurred by the auxiliary production cost center to the product accordingly; The module M6 summarizes the cost of each product under each production auxiliary cost center by cost item.

7. The system for calculating the processing cost of metal products under a cyclic reciprocating production process according to claim 5, characterized in that: The module M3 comprises: Attribution judgment module: judge the attribution of the input materials. If the input materials are not semi-finished products of the virtual productive cost center to which the production auxiliary cost center belongs, the first input-output performance will be included in the virtual productive cost center to which the production auxiliary cost center belongs. If the input materials are semi-finished products produced internally by the virtual productive cost center to which the production auxiliary cost center belongs, the nature judgment module will be executed. Nature judgment module: judge the nature of export materials and record the second input-output performance into the virtual productive cost center to which the production auxiliary cost center belongs; Quality judgment module: judge the export materials as inferior or scrapped, and include the actual output of the third input into the virtual productive cost center to which the auxiliary production cost center belongs; The first input-output performance is the production performance collected in accordance with the input-output method, including the consumption account of imported materials and the output account of exported materials; The third input-output performance is the production performance collected according to the quality determination method, including the decrease account of the quality materials before the determination and the increase account of the defective or waste materials after the determination; The property judgment module comprises: If the export material is a finished product, the second input-output performance is the production performance collected according to the input-output method, including the consumption account of the import material and the output account of the export material; If the exported material is not a finished product, the second input-output performance is the production performance collected in the material correction performance method, including the weight correction account of the imported material; The finished product properties of the export materials are identified and indicated by the production MES system as required.

8. The system for calculating the processing cost of metal products under a cyclic reciprocating production process according to claim 5, characterized in that: The parameters of the production performance include output, unit throughput, operation time, processing passes, annealing process, oiling amount, packaging method, nitrogen indication, cleaning, pickling mark and passivation mark; The module M4 comprises: Module M4.1: Determine the collection method. If the actual production performance is collected by input-output method, the output product operation volume is calculated according to the weight of the export materials. If the actual production performance is not collected by input-output method, module M4.2 is triggered. Module M4.2: Determine the collection method. If it is the actual production performance collected by the material correction method, the material operation volume is calculated according to the corrected weight of the inlet material. If it is not the actual production performance collected by the material correction method, module M4.3 is triggered; Module M4.3: According to the relevant conversion rules, the amount of auxiliary materials used for the corresponding special process is calculated and converted as the workload based on the actual production performance. For the actual production performance collected by the quality judgment method, the workload is not calculated; Module M4.4: The calculated and converted workload is recorded in the corresponding production auxiliary cost center; The production MES accounting method pre-set in the module M4.4 cooperates with the quality judgment system to collect parameters for generating actual performance, and the cost accounting system receives the results; The operation volume includes the unit throughput, operation time, material status category and auxiliary material usage corresponding to the special process; The auxiliary material usage includes electricity consumption, nitrogen consumption and oil coating amount.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for calculating the processing cost of metal products under the cyclic reciprocating production process described in any one of claims 1 to 4 are implemented.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the computer program is executed by a processor, the steps of the method for calculating the processing cost of metal products under the cyclic reciprocating production process described in any one of claims 1 to 4 are implemented.

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