PROBLEM TO BE SOLVED: To realize the smoothing of the load of an equipment by displaying a chart indicating the production capacity of the equipment per a prescribed time unit on a display means by making the chart correspond to a chart indicating the production estimated quantity per the prescribed time unit and adjusting the production estimated quantity by watching the displayed contents. SOLUTION: A display device 12 makes the production capacity by the date for every equipment into a polygonal line graph based on the information fetched from a capacity storage device by the equipment 9 and a special material casting schedule storage device 10, makes the production quantity by the date into a bar graph by the information fetched from a rolling scheduled date assigning device 11 and displays the production capacity and the rolling estimated quantity for every equipment by making them correspond. Based on this displayed contents, the adjustment of rolling estimated quantity is performed based on the information from a received order predicting device 8 and a received order amount transferring device 7. The rolling required time by the date is calculated again and a rolling schedule is planned so that the load of each equipment may be smoothed by watching the display the rolling estimated quantity by the calculation result.

Production schedule planning system and using method therefor and iron and steel production schedule planning system and using method therefor

PURPOSE: To carry out efficient input planning operation by actualizing an efficient flow of articles through plural factories. CONSTITUTION: Whether a necessary number 8 of materials required to manufacture an input object are held, whether or not the daily factory input limit 3 of the front-end factory for the manufacture of the input object, i.e., the daily facility capacity of the neck process having the least throughput among plural passing processes in each factory is exceeded, and the facility possible input limit 7 by next factory input dates of the input object, i.e., the actual possible facility input limit obtained by excluding the load of the input object in process that is predicted to be present at a next factory on the day of the input object to the next factory and already inputted to the process and the load of the input object that is already reserved in the input schedule, but not inputted to the process from the daily factory input limit at the next factory, is exceeded are checked to plan the input object which satisfies the three items.

Input planning support system

PROBLEM TO BE SOLVED: To easily change a production plan in response to the delivery instruction of a client during the manufacturing of a steel product.SOLUTION: A production plan creation part 145 creates the production plan of a steel product on the basis of a contract delivery time, and an input part 11 receives the input of the order information of each steel product including at least information relating to the scheduled use date and requested weight of the steel product, and a schedule merchandise data creation part 143 calculates the scheduled weight of each steel product to be produced within a predetermined period on the basis of the created production plan in response to the input of the order information, and a schedule merchandise allocation part 144 associates the steel product to be produced within the predetermined period with the order information on the basis of the calculated scheduled weight so that the steel product having the requested weight can be delivered by the scheduled use date, and a production plan creation part 145 changes the production plan on the basis of the association result of the order information.

Production plan creation system and production plan creation method

PURPOSE:To plan an effective production in accordance with the time limit of delivery of each product to be planned and the characteristic of each process in a production control system where a product serving as a machining material is manufactured in plural processes. CONSTITUTION:The product manufacturing processes are divided into an upper process group and a lower process group, and the unit products to be planned are divided into a group with which the limit time of delivery is fixed and a group with which the tentative time limit of delivery is decided in a cold rolling ten days planning system 610, etc. Then the products of both groups are arranged and tentatively arranged for each day so that the process conditions are satisfied in the order of time limit of delivery. Then the daily production plan is set for the upper and lower process groups. At the same time, the unit products are totalized for each set frame of the lower process group and each day. Then the lot type of the upper process group is set for each day based on the daily arrangement in a steel manufacture/hot rolling ten days planning system 620, etc. Then the daily production plan of the upper process group is set in a range of a prescribed period so that the number of daily set frames is satisfied based on the number of formed lots and in the order of tentative time limit of delivery of the lower process group.

Production control method and system for machining material

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Production control method and system for machining material