JPH06162058A - Method and system for controlling delivery of coil-like product - Google Patents

Abstract

PURPOSE:To execute exact control of delivery corresponding to a production schedule of a user, and also, to hold proper stocks, in the delivery control of a coil--like product in the iron and steel industry. CONSTITUTION:Based on information such as a past variance of a delivery date and a manufacture completion scheduled date, a use schedule for each day of a user, and stock of a distribution department and the user, etc., a setting part 530 calculates a necessary filling-up quantity and determines an order placing quantiyt. Also, based on an order discrimination code of a contract unit, a grouping part 550 executes grouping of a unit manufacture coil at each of the same kind specification parts. A setting part 560 sets a delivery date and a manufacture instruction date every manufacture coil subjected to grouping by using information of stock filling-up quantity, etc. In accordance with the result of this setting, a setting part 570 sets an order placing quantity to be prepared thereafter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a delivery management method and system for a coiled product which can be used as a material for individual parts by cutting it into a specific size.

[0002]

2. Description of the Related Art In the steel industry, papermaking industry and textile industry, coiled products that can be used as materials for individual parts are manufactured by cutting into a specific length.

Regarding the production of coiled products in the iron and steel industry, for example, when an order is collectively received from a customer or a trading company at the head office, the contents of each order, for example, the contract month, are issued to a plurality of steel mills. , A series of manufacturing instructions based on the trading company, quality, contract quantity, size, etc. It uses an order-based delivery date management method that assigns and assigns the expected delivery date.

According to the delivery date management method as described above, the delivery date is managed for each order unit, and therefore the probability of making an error is extremely small. However, this method manages multiple coil-shaped products with different contract months for each order even if they are the same specification parts of the same customer, so the original manufacturing management and shipping management to the customer are centralized. It cannot be expected to improve the production efficiency that should be brought about by doing.

[0007] Further, the unit of use of the product and the delivery date of the product in the customer are a plurality of production coil units obtained by further subdividing the order unit, and the delivery date is a daily unit. It will be necessary to manage different delivery dates on a daily basis. However, the manufacturing of coiled products is done with the same delivery date that should be manufactured for each order.
Coiled products with late delivery date will be kept in stock until the specified delivery date.

[0006]

In such a conventional order-based delivery date management method, what should be centrally managed as an order for the same specification part originally by the same customer is dispersed into a plurality of orders, and manufacturing control is performed. Also, shipping management to customers becomes complicated and production efficiency decreases.

That is, the coiled product is manufactured from a raw material through a plurality of various processing steps. In the manufacturing process of this coiled product, if a manufacturing delay occurs in a specific unit coil due to some manufacturing trouble, an express order (manufacturing interruption instruction) for manufacturing the unit coil must be issued in order to guarantee the delivery date. Disappear. This express instruction leads to a change in the manufacturing plan of coiled products after the manufacturing interruption, causing confusion in the delivery date management of other orders.
This will reduce the efficiency of production and impose a heavy workload on the manager of the manufacturing process.

Further, the production plan of the customer is often changed in accordance with changes in market conditions. Therefore, for the order in the middle of product manufacturing, the delivery date determined at the time of ordering is changed to the production plan of the customer. Therefore, it is necessary to make corrections and adjust the amount to be manufactured. However, since the manufacture of coiled products is managed on an order-by-order basis as described above, it is possible to deal with the above-mentioned changes in the customer's production plan by having an extra inventory, or to carry out a large number of highly-skilled, dedicated processes. The reality is that the management is labor-intensive.

Based on the above circumstances, the present invention makes it possible to easily and accurately manage the delivery date corresponding to the production plan of the customer, and systematize and automate the delivery date management work of the product. With the goal.

[0010]

In order to solve the above problems, the method for managing the delivery date of the coiled product according to the present invention, when manufacturing the coiled product based on the input data of the ordered product, For each component with the same specifications, calculate the necessary supplementary amount when the unit manufacturing coil and the inventory of the distribution department and the customer at that time do not reach the appropriate inventory amount, and set the order amount to be arranged in the future. ing.

Further, when a coiled product is manufactured based on the input data of an ordered product, the stock ratio, which is the standard for all products, is used as a standard for each part of the same specification, and the usage plan of the customer caused by the market change The appropriate inventory rate is calculated from the past fluctuations in the manufacturing cost and the fluctuations in the past scheduled completion date caused by manufacturing difficulty, and the appropriate inventory amount is set based on the planned usage amount of the customer's products. Calculate the required amount of compensation according to the inventory of the distribution department and customers at the time,
It is possible to manufacture a unit manufacturing coil aiming at that and arrange an order.

Further, when manufacturing a coiled product based on the input data of the ordered product, the unit manufacturing coil is used for each part of the same specification regardless of the setting of the manufacturing condition by using the order identification code of the contract unit as a unique key. Grouped and planned to be completed in the order of the completion of production and the above-mentioned order of each unit production coil, scheduled based on the delivery date of the customer's plan to use the coiled product according to the distribution department and customer's inventory at that time It is also possible to set the delivery date and calculate the required amount of compensation, and set the production completion instruction date based on the required amount of compensation derived as described above.

Further, the delivery time management system for coiled products according to the present invention includes a customer information storage means for storing information on the inventory of coiled products and a usage plan of the customer, and an order for the coiled product from the customer. Order information storage means for storing information about the manufacturing coil, manufacturing coil information storage means for storing information about the manufacturing coil, and past results of fluctuations in the delivery date of the customer in the past and fluctuations in the scheduled completion date of manufacturing the coiled product. A performance information storage unit that stores information for each of the same-spec parts, and an appropriate stock ratio setting unit that sets the proper stock ratio for each of the same-spec parts using the performance information stored in the performance information storage unit, A usage plan day-to-day deployment means for deploying the usage plan of the customer's coiled product on a daily basis based on the stored contents of the customer information storage means; The appropriate stock rate is set based on the appropriate stock rate set by the storage rate setting means and the usage plan of the customer that is daily deployed by the usage plan day-to-day deployment means, and the appropriate inventory quantity and at that time are set. Inventory filling amount setting means for setting the inventory filling amount based on the distribution department and the customer's inventory, and an order grouping means for grouping the orders stored in the order information storage means for each parts of the same specification, Manufacturing coil grouping means for grouping the manufacturing coils stored in the manufacturing coil information storage means for each part of the same specification by using the grouping result by the order grouping means, and the demand developed daily by the usage plan day-by-day deployment means. Based on the usage plan of the house, according to the current distribution department and customer inventory, In addition to setting a fixed delivery date, based on the inventory filling amount set by the inventory filling amount setting means, a delivery date / manufacturing instruction date setting means for setting the production completion instruction date of each of the above-mentioned manufacturing coils, and the delivery date It is characterized in that it has an order required quantity setting means for setting the order quantity to be arranged in the future based on the setting result by the manufacturing instruction date setting means.

[0014]

According to the present invention, it is possible to set the order quantity to be arranged in the future when the unit manufacturing coil, the distribution department at that time, and the stock of the customer are taken in for each part of the same specification, and the stock quantity is not appropriate. By doing so, it is possible to perform centralized management from order receipt to delivery for each order and for each coiled product, which enables accurate delivery management to customers as well as proper inventory management. The efficient production can be maintained.

Further, for each part of the same specification, an appropriate inventory rate is set based on the standard inventory rate of all components based on the record of past fluctuation variation due to changes in production plans of customers and manufacturing troubles. By doing so, it is possible to set a proper inventory rate that does not have an excess inventory while guaranteeing the delivery date of the customer in accordance with the characteristics of the specified component. Furthermore,
Based on this appropriate inventory rate, the appropriate inventory amount is calculated using the information on the planned usage amount of the coiled product in the customer, and the appropriate inventory amount and the inventory of the distribution department and the customer at that time are calculated. By calculating the required amount of replenishment and producing the required amount of coiled product, it is not necessary to maintain an extra inventory.

[0016] Further, for example, based on the record of the orders currently received, the orders are grouped for each part of the same specification, and based on the records of the manufacturing coils, a plurality of orders are grouped into a plurality of orders. Select the manufacturing coils that are tied. Then, based on the record of the progress position of the production coil, these production coils are virtually arranged in the order of the production completion schedule and in the order of the advancement, and the coiled product is used by the customer for each unit production coil described above. The latest production guideline can be set by using the delivery date information of the plan and assigning the delivery date to the MSB in advance according to the inventory of the distribution departments and customers who have already shipped at that time. Also, for each of the above unit manufacturing coils that are similarly aligned,
By giving the manufacturing instruction date to the forward filling from the necessary supplementary amount derived as described above, it is possible to give the manufacturing instruction according to the progress of the unit manufacturing coil.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows the configuration of the entire system for managing the coiled product in the steel industry from order receipt to shipment, and FIG. 2 shows the outline of the coiled product manufacturing process in a factory.

In FIG. 1, a plurality of orders placed by a consumer or a trading company are first accepted by the head office system 100 at once. And these orders are
With a series of manufacturing instructions such as trading company, quality, contract quantity, size, etc., the delivery date to be manufactured is given and assigned to multiple steelworks.

The assigned orders are received by the order processing system 200 of each steel mill, and the quality design system 3
After the quality design is performed according to 00, it is stored in the order management database (hereinafter abbreviated as DB) 541. continue,
Based on the information in the order management DB 541, the material design system 400 calculates the amount of material to be ordered, develops it into an actual manufacturing coil, and stores it in the manufacturing coil management DB 552.

Next, the delivery date management system 500 carries out a progress grasping process together with the manufacturing coils that have already been arranged based on the information in the manufacturing coil management DB 552, and the result management D
The delivery date and the manufacturing instruction date are set based on the information in B511 and the customer information DB 521, and this is stored in the manufacturing coil management DB 552.

Based on the information of the manufacturing coil management DB 552 stored in this way, a predetermined work instruction is given by the operation management system 800 via the production planning system 600 and the production control system 700. The operation management system 800 has a manufacturing process as shown in FIG.
For each operating process such as blast furnace, converter, continuous casting, hot rolling, cold rolling, plating, etc., control of various equipment and collection of information such as progress status in each manufacturing process are executed. The progress information in each manufacturing process collected here is stored in the sequential manufacturing coil management DB 552. Further, the manufactured products are shipped to the customers by the shipping processing system 900.

The delivery date management method and system configuration of the coiled product will be specifically described below with reference to the drawings. FIG. 3 is a block diagram showing the elemental features of the delivery date management system 500 shown in FIG.

The delivery date management system 500 is, for example, once a month.
An appropriate inventory rate setting unit 510 that operates on a day to set an appropriate inventory rate, a daily usage plan development unit 520 that operates daily to develop a usage plan of a customer, for example, and an inventory compensation amount A stock compensation amount setting unit 530 for setting, an identical component grouping unit 540 for grouping orders by the same specification component, and an identical component grouping unit 550 for manufacturing coils for grouping the production coils by the same specification component
And a delivery date / manufacturing instruction date setting unit 560 for setting delivery date / manufacturing instruction date to the manufacturing coil and an order required amount setting unit 570 for setting order required amount. Each of these units is configured by a computer system including, for example, a CPU, a RAM, a program ROM, and the like.

The DB (database) used in the above system is a performance management DB 511 and a customer information DB 52.
1, DB 5 for order management DB 541, manufacturing coil management DB 552, and placement arrangement DB 572. Further, in order to exchange information between the respective parts, a proper inventory rate table DB 514 for temporarily storing processing information, a customer information work DB 523, an inventory filling information work DB 535, an order information work DB 544, a manufacturing coil information work DB 5
55 and an inventory compensation result work DB 568 are provided. The delivery date / manufacturing instruction date and the required order quantity for each manufacturing coil, which are the final processing results of the delivery date management system 500, are stored in the manufacturing coil management DB 552 and the placement arrangement DB 572, respectively.

Next, the contents of the recognition items of the same specification parts are
As shown in FIG. Typical items include, for example, a trading company, a customer / factory, a product type, a size, an application, a standard, and a plating amount. In the case of the present embodiment, each unit of the delivery date management system 500 described above operates using the recognition items of these parts with the same specifications as a key. It should be noted that the same-specification parts can be, for example, each product type or each customer, and the usage plan of the customer can be the production plan of the lower process.
In the example shown below, description will be given using each part of the same specification and the usage plan of the customer.

Next, the delivery date management system 50 shown in FIG.
The operation of each unit (function) 0 will be sequentially described with reference to FIGS. As shown in FIG. 5, the proper inventory rate setting unit 510 calculates the proper inventory rate based on the past record for each component of the same specification.

That is, first, in step S1, the contents of the actual result management DB 511, which stores the actual results of changes in the delivery date and manufacturing completion date of the past consumer for each specification part, are read. Next, in step S2, variations in the delivery date and the manufacturing completion date are calculated based on this information, and in the subsequent step S3, the proper inventory rate is calculated.

FIG. 7 shows an example of calculating the proper stock rate.
According to this, first, the variation of the delivery date and the variation of the production completion date are calculated as shown in, and the calculation results are replaced with the delivery date change days and the production completion date change days, respectively. Then, as shown in,
Calculate the inventory days for each specification part by adding the number of days to change for each part and the standard inventory days for all parts, and then add this inventory days to the difference in days due to differences in distribution and transportation forms. To determine the appropriate inventory days.

Then, the appropriate stock days calculated in this way are divided by the number of days in the current month to obtain the appropriate stock rate in the current month.
In this example, the appropriate inventory rate of 0.56 in September is calculated based on the past (July and August) changes in the delivery date of the customer and the change in the manufacturing completion date for each specification part. There is.

The calculation result of the proper inventory rate for each parts of the same specification obtained as described above is stored in the proper inventory rate table DB 514 in step S4 of FIG.

The proper inventory rate stored in the proper inventory rate table DB 514 is corrected by human operation in accordance with, for example, business trends and other information. That is, as shown in FIG. 6, in step S5, the appropriate stock rate table DB
The content of 514 is read, and in a succeeding step S6, a predetermined correction value is input to correct the proper inventory rate calculated as described above. The corrected appropriate inventory rate is stored again in the appropriate inventory rate table DB 514 in step S7. In this example, as shown in FIG. 7, the appropriate inventory rate 0.56 calculated as described above is corrected by -0.1 to obtain the appropriate inventory rate 0.46.

The daily development unit 520 of the usage plan of the customer is
As shown in FIG. 8, the customer information is read for each part of the same specification, and the daily expansion calculation is performed.

That is, first, in step S8, the contents of the customer information DB 521 (information such as distribution inventory quantity, mill inventory quantity, usage plan, holiday calendar for each customer, etc., stored for each parts of the same specification) are read. Customer usage plans include
There are two patterns, one in which the daily usage plan is stored in advance and the other in which the monthly usage plan amount is stored. Of these, if the monthly usage plan amount is stored,
In step S10, the daily expansion calculation as shown in the example of FIG. 9 is executed using the holiday calendar for each customer. On the other hand, if the daily usage plan is stored, the process in step S10 is not performed. In a succeeding step S11, the distribution inventory amount, the mill inventory amount, and the daily usage plan of the consumer for each of the same-spec parts developed as described above are stored in the consumer information work DB 523.

The customer's usage plan can be set, for example, by week, season, or month, but the following example describes the case of deployment by day.

The inventory replenishment amount setting unit 530 is a proper inventory ratio for each similar specification component determined by the appropriate inventory ratio setting unit 510 and a distribution for each similar specification component determined by the usage plan daily development unit 520. Based on the inventory amount, the mill inventory amount, and the daily usage plan of the customer, as shown in FIG. 10, the appropriate inventory amount and the inventory compensation amount are calculated for each component of the same specification.

That is, first, in step S12, a proper inventory rate table DB51 in which the proper inventory rate is stored.
Read the contents of 4 for each part with the same specifications, and continue with step S
In 13, the consumer information work DB 52 in which the distribution inventory amount, the mill inventory amount, and the daily usage plan of the consumer are stored
The contents of 3 are read in for each part of the same specification.

Next, in step S14, the proper stock amount for each day is calculated from the read proper stock rate and the daily usage plan of the customer. In step S15, the daily inventory supplement amount is calculated by converting the distribution inventory amount, the mill inventory amount, and the daily usage plan of the customer from the appropriate daily inventory amount. The daily inventory replenishment amount for each of the same specification parts obtained in this way is
In step S16, it is stored in the inventory compensation information work DB 535.

FIG. 11 shows an example of calculation of the appropriate stock amount and the stock compensation amount. In this example, the appropriate stock amount for each day in September is calculated based on the appropriate stock ratio in September of 0.56 and the daily usage plan of the customer in September. The daily inventory compensation amount for September is calculated from the distribution inventory amount and the mill inventory amount.

The same part grouping unit 540 for an order is
As shown in FIG. 12, the keys of the recognition items of the same-spec parts as shown in FIG. 4 are extracted from the order information, and the order is grouped by sorting the parts keys in the order of the parts key.

That is, first, in step S17, the order information, which is the contents of the order management DB 541, is read, and in step S18, the part key is taken out using the recognition item of the same-spec part as a key. Then, the same processing is repeated until the extraction of the part key is completed for all the order information stored in the order management DB 541. In addition, order management DB
In 541, as shown in FIG. 13, the contract identification number, the trading company, the customer /
Factory, quality, contract amount, size, application, standard, plating amount,
Items such as the adopted manufacturing method are stored.

When it is determined in step S19 that the part keys have been extracted from all the order information, in step S20, the orders are sorted in the order of the part keys. The sorted order information is stored in the order information work DB 544 in step S21.

Same part grouping part 55 of manufacturing coil
0 is the same part grouping unit 54 of the order as described above.
By using the order information grouped for each of the same-spec parts by 0, a plurality of manufacturing coils tied individually for each order are grouped for each of the same-spec parts.

That is, in the manufacturing coil management DB 552, as shown in FIG. 15, items such as weight, planned date of recording, order number with string, sampled weight, adopted manufacturing method, etc. are set by using the manufacturing coil identification number of the manufacturing unit as a unique key. Remembered On the other hand, since the order information work DB 544 is provided with a part key indicating the same specification part and the orders are sorted in that order, steps S22 to S27 in FIG.
As shown in, the order is read, information on a plurality of manufacturing coils associated with the order is sequentially fetched from the manufacturing coil management DB 552 using the order number as a key, and the component key is set.

In this way, the manufacturing coil information to which the component key is added is sorted in the order of the component key in step S28, and in the order of the planned accounting date within the same component key, and then in step S29, the manufacturing coil information work is performed. DB555
To be stored in.

An example of the contents of the manufacturing coil information work DB 555 is shown in FIG. In this example, one manufacturing coil is associated with one order. However, even if one manufacturing coil is associated with a plurality of orders, if the manufacturing coils are logically divided, the above result is obtained. It can be processed similarly.

As shown in FIG. 17, the setting unit 560 for setting the delivery date / manufacturing instruction date to the manufacturing coil, the distribution inventory amount, the mill inventory amount, and the demand daily demand plan constituted by the customer for each part of the same specification. House information, inventory compensation information constituted by the daily inventory compensation amount obtained by the inventory compensation amount setting unit 530, and production coil grouping by the same component grouping unit 550, which is grouped by the component key Using the manufacturing coil information sorted in the order of the scheduled date, the delivery date and the manufacturing instruction date for the manufacturing coil are set.

That is, first, in step S30, the contents of the customer information work DB 523 are read for each component of the same specification, and in step S31, the distribution inventory quantity, mill inventory quantity, and customer day are calculated by the processing shown in FIG. The distribution inventory quantity and the mill inventory quantity are allocated to the daily usage plan of the customer from the separate usage plan.

After that, in step S32, the contents of the manufacturing coil information work DB 555 are read for each part of the same specification, and in the following step S33, it is judged whether or not there is a target part key, and in step S34, the manufacturing coil is demanded. By allocating to the daily usage plan of the house in a left-justified method,
Determine the delivery date for the production coil. If it is determined in step S33 that there is no target part key,
Returning to step S30, similar processing is performed.

Next, in step S35, after the contents of the inventory compensation information work DB 535 are read, step S36
Then, the manufacturing instruction date for the manufacturing coil is determined by allocating the manufacturing coil to the daily inventory replenishment amount by the pre-filling method in the process as shown in FIG.

The delivery date / manufacturing instruction date for the manufacturing coil thus determined is stored in the manufacturing coil management DB 552 in step S37. In addition, the daily inventory compensation result amount for each component of the same specification that has not been compensated by the allocation of the manufacturing coils as described above is
It is stored in the stock compensation result work DB 568. In the example shown in FIGS. 18 and 19, for example, the delivery date of the production coil with the production coil number 0001 is September 15, and the production instruction date is September 3.

As shown in FIG. 20, the order required quantity setting unit 570 uses the daily inventory compensation result quantity which has not been compensated by the allocation of the manufacturing coils for each of the same specification parts,
Set the required order quantity.

That is, first, in step S39, the contents of the stock compensation result work DB 568 are read for each component of the same specification, and then in step S40, it is determined whether or not there is an insufficient amount that has not been compensated. If it is determined that there is a shortage, the process proceeds to step S41 and
The ordering quantity is calculated for each manufacturing instruction date by the processing as shown in FIG. 11, and the ordering quantity for each manufacturing instruction date for each part of the same specification determined by this processing is stored in the input arrangement DB 572.

[0053]

As described above, according to the present invention, in the delivery management of the coiled product which can be used as a material for individual parts by cutting it into a specific size, the production of the coiled product based on various orders. At this time, we will give a delivery date and a manufacturing instruction date to the manufacturing coil for each specification part of the same type,
In addition, since the required order quantity is set, it is possible to ensure the delivery date of the customer, and to carry out efficient production that can maintain proper inventory without excess inventory. .

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an entire order-shipment management system for steel products.

FIG. 2 is a diagram showing an outline of a manufacturing process of a steel product in a factory.

FIG. 3 is a block diagram showing elemental features of the delivery date management system of the present invention.

FIG. 4 is a diagram showing an example of a recognition key of the same specification part.

FIG. 5 is a flowchart showing an operation of setting an appropriate stock rate by an appropriate stock rate setting unit.

FIG. 6 is a flowchart showing the operation of correcting the proper inventory rate by the proper inventory rate setting unit.

FIG. 7 is a diagram illustrating an example of a proper inventory ratio setting and correction process.

FIG. 8 is a flowchart showing the operation of the daily expansion unit of the usage plan.

FIG. 9 is a diagram illustrating an example of daily expansion processing of a usage plan of a consumer.

FIG. 10 is a flowchart showing the operation of an inventory compensation amount setting unit.

FIG. 11 is a diagram illustrating an example of setting processing of an inventory compensation amount.

FIG. 12 is a flowchart showing the operation of the ordered identical component grouping unit.

FIG. 13 is a diagram showing an example of data stored in an order management DB.

FIG. 14 is a flowchart showing an operation of the same component grouping unit of the manufacturing coil.

FIG. 15 is a diagram showing an example of data stored in a manufacturing coil management DB.

FIG. 16 is a diagram showing an example of data stored in a manufacturing coil information work DB.

FIG. 17 is a flowchart showing an operation of a delivery coil / manufacturing instruction date setting unit for a manufacturing coil.

FIG. 18 is a diagram showing an example of a delivery date setting process for manufacturing coils.

FIG. 19 is a diagram illustrating an example of processing for setting a manufacturing instruction date for a manufacturing coil.

FIG. 20 is a flowchart showing an operation of a required order quantity setting unit.

FIG. 21 is a diagram showing an example of setting processing of required order quantity.

[Explanation of symbols]

 500 Delivery date management system 510 Appropriate inventory rate setting unit 511 Actual result management DB 514 Optimal inventory rate table DB 520 Usage plan daily development unit 521 Customer information DB 523 Customer information work DB 530 Inventory compensation amount setting unit 535 Inventory compensation Information work DB 540 Order same part grouping part 541 Order management DB 544 Order information work DB 550 Manufacturing coil same part grouping part 552 Manufacturing coil management DB 555 Manufacturing coil information work DB 560 Delivery date / manufacturing instruction date setting part 568 Inventory compensation Result work DB 570 Order required quantity setting unit 572 Input arrangement DB

Claims (4)

[Claims] 1. When manufacturing a coiled product based on the input data of an ordered product, an appropriate stock amount is obtained for each unit of the same specification with the unit manufacturing coil and the inventory of the distribution department and the customer at that time. A delivery time management method for coiled products, characterized by calculating the necessary supplementary amount when it does not meet and setting the ordering amount to be ordered in the future. 2. When a coil-shaped product is manufactured based on input data of an ordered product, a usage plan of a customer caused by a market change based on an inventory rate which is a standard for all products of the same specification parts The appropriate inventory rate is calculated from the past fluctuations in the manufacturing cost and the fluctuations in the past scheduled completion date caused by manufacturing difficulty, and the appropriate inventory amount is set based on the planned usage amount of the customer's products. A delivery time management method for coiled products, characterized in that the required amount of supplementary material is calculated according to the inventory of the distribution department and the customer at that time, and the manufacturing and ordering of unit production coils aiming at it are performed. 3. When manufacturing a coiled product based on the input data of an ordered product, a unit manufacturing coil is used for each part of the same specification regardless of the setting of the manufacturing condition by using the order identification code of the contract unit as a unique key. Grouping, for each of the above unit manufacturing coils, in order from the earliest production completion schedule and its progress,
Based on the delivery date of the usage plan of the coiled product of the customer, set the scheduled delivery date according to the inventory of the distribution department and the customer at that time, calculate the required amount of compensation, and calculate the required amount of compensation derived from the above A delivery time management method for coiled products, characterized by setting a manufacturing completion instruction date based on the quantity. 4. A customer information storage means for storing information on a stock of coiled products and a usage plan of a customer, and an order information storage means for storing information on an order of the coiled product from the customer. A manufacturing coil information storage unit that stores information about coils, and performance information that stores, for each of the same-spec parts, performance information relating to past fluctuations in the delivery date of customers and past fluctuations in the scheduled completion date of manufacturing coiled products. Based on the storage means, the proper inventory rate setting means for setting the proper inventory rate for each of the same specification parts by using the performance information stored in the performance information storage means, and the storage content of the consumer information storage means Usage plan daily deployment means for developing the usage plan of the customer's coiled products by day, and the appropriate inventory rate set by the appropriate inventory rate setting means and the above usage rate The appropriate inventory amount is set based on the usage plan of the customers that has been developed daily by the usage plan daily expansion means, and the inventory is replenished based on the appropriate inventory amount and the inventory of the distribution department and the customer at that time. Inventory compensation amount setting means for setting the quantity, order grouping means for grouping the orders stored in the order information storage means for each parts of the same specification, and the manufacturing coil information using the grouping result by the order grouping means Based on the manufacturing coil grouping means for grouping the manufacturing coils stored in the storage means for each part of the same specification, and the usage plan of the customer that is expanded daily by the above-mentioned usage plan daily expansion means, According to the inventory of the distribution department and the customer, the scheduled delivery date is set for each of the grouped manufacturing coils, and the inventory filling amount setting procedure is set. Based on the inventory filling amount set by, the delivery date / manufacturing instruction date setting means for setting the production completion instruction date of each of the above manufacturing coils, and future arrangement based on the setting result by the delivery date / manufacturing instruction date setting means A delivery date management system for a coiled product, comprising: a required order quantity setting means for setting an order quantity to be ordered.