JPH05108656A - Production schedule planning device - Google Patents

Abstract

PURPOSE:To simultaneously produce the production schedule plans through all processes in consideration of process load by displaying simultaneously the load piling graphs calculated for each process and changing the scheduled starting date of the necessary lot to be changed. CONSTITUTION:A scheduled production date deciding part 2 calculates the scheduled starting date of each process based on the information on the plan stored in a production plan storage part 1. This decided scheduled date is stored in a production schedule information storage part 3. Based on this information, the load of each time mesh is calculated at a load pliling executing part 4. Then all process loads are displayed at a load piling graph display part 6 together with the auxiliary data. The information on the necessary lot to be changed based on the display result of the part 6 is received at a change information input part 8. Then the information on the part 3 is updated at a corrected result updating part 9, and both parts 4 and 6 are carried out. Based on these results, 8 process-based schedule plan production part 1.0 produces the schedule plan of each process.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a production schedule planning device,
In particular, at the manufacturing site where processing is performed in multiple processes, the results of load stacking for each process can be displayed at the same time, and the manager of the manufacturing site can create a production schedule plan that simultaneously considers the difference in the load for each process. A production schedule planning device.

[0002]

2. Description of the Related Art A conventional production planning apparatus is operated as follows. (1) Only the load of a specific process is calculated and displayed, the manager of the manufacturing site changes the schedule in consideration of the load, and the production plan is created based on the information. As for the other processes, a plan was created based on the production plan of the specific process. (2) Calculate or display the load of the first or last process based on the process procedure, change the schedule considering the load, make a production plan based on that information, and calculate the load of the next process or the previous process As described above, the production plan for each process was created step by step.

[0003]

The above-mentioned conventional production schedule planning apparatus, which has made a production plan considering only the average load or the load for a specific process, has the same product name but different load for each process. If there is a big difference, it has the drawback that the product cannot be produced according to the planned production plan.

[0004]

The production schedule planning apparatus of the present invention is (A) for each lot to be produced, product name, production quantity, planned start date, delivery date, price, process step of product, and A production plan storage unit that stores information on the processing time per unit quantity in the above process, and (B) an information storage unit that stores the capabilities of each process and facility at the manufacturing site, scheduled work time, scheduled stop time, C) The product of the processing time and the production quantity of each process is calculated for each lot based on the scheduled start date, the process procedure, the processing time of each process, and the production quantity stored in the production plan storage unit. Along with calculating the process-specific load time, the load time is sequentially added from the planned start date according to the process procedure to calculate the start time for each process, and the planned production date determination unit is stored in the production schedule information storage unit, (D) It is stored in the production schedule information storage unit. A load heap execution unit that calculates the load of each process by aggregating the load time for each process that is given for each process in a given time mesh unit,
(E) a pile graph for each process is created from the result of the load pile execution unit, and a pile graph display unit for simultaneously displaying a plurality of graphs, (F) information in the production schedule information storage unit, and the production The time and completion quantity for completing the final process of the lot are calculated from the production quantity in the lot unit stored in the plan storage unit, and the unit price data in the production plan storage unit is calculated together with the time mesh unit given in advance. Sales are calculated from the product of the completed quantity, and a graph is displayed at the same time as the result of the piled-up graph display unit, supplementary data calculation / display unit, and (G) lot to be changed, process name,
Input process start time, change information input, and (H) process start time of the target process of the target lot stored in the production schedule information storage unit based on the information input in the change information input unit. Change, the process-based start time of the other process of the target lot is moved in parallel according to the change, and a re-execution command is issued to the pile execution unit and the load pile graph display unit, and a correction result update unit, (I) A process-based schedule planning unit that extracts the process-specific start time of each lot for each process from the information in the production schedule information storage unit and displays it in chronological order.

[0005]

The present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. The production schedule planning device shown in FIG. 1 provides information on the product name, production quantity, scheduled start date, delivery date, unit price, process procedure of the product, and processing time per unit quantity in each process for each production target lot. Information on the planned production date storage unit 1 and the planned production date determination unit 2 that determines the scheduled start date according to the process procedure of each lot based on the information stored in the production plan storage unit 1 Storing a production schedule information storage unit 3, a load stacking execution unit 4 for calculating a load per time mesh of each facility based on the information stored in the production schedule information storage unit 3, and a process holding capacity The process information storage unit 5, which displays the load stacking result as a graph, shows the process possession capacity,
A load pile graph display unit 6 that displays a load pile result as a graph from the results of the process information storage unit 5 and the load pile execution unit 4, and a supplemental data calculation that calculates / displays supplementary data used when evaluating the pile result.・ Display unit 7,
A modification information input section 8 for inputting modification information when changing a scheduled start time of a lot from a stacking graph, and a modification for updating data in the production schedule information storage section 3 based on the information in the modification information input section 8. The result updating unit 9 and the process-based schedule planning unit 10 that creates a schedule plan for each process from the information in the production schedule information storage unit 3 are configured.

FIG. 2 is a diagram showing a display example of the load pile graph display unit 6 shown in FIG. From the result of the load stacking execution unit 4, the load for each process is aggregated in a time mesh unit given in advance and displayed on the same screen.
The wavy line in this graph is the holding capacity in the process calculated from the facility-specific capability, the scheduled work time, and the scheduled stop time stored in the process information storage unit 5. If the load exceeds the main line, the capacity is exceeded and it is necessary to change the scheduled start time.

3A and 3B are a change information input unit 8, a correction result updating unit 9, a production schedule information storage unit 3, a load pile execution unit 4, and a load pile graph display unit 6 shown in FIG. It is a figure showing the relevance of. FIG. 3A shows an input example of the change information input unit 8, and FIG. 3B shows redisplay of the load pile graph display unit 6. A person judges the result of the load pile graph display unit 6 as shown in FIG. 2, and inputs the change target lot name, process, and scheduled start time into the change information input unit 8 shown in FIG. 3A. Based on this result, the scheduled start time of each process of the lot name designated by the correction result update unit 9 is changed, and the change information is stored in the production schedule information storage unit 3. After the storage, the load pile execution unit 4 and the load pile graph display unit 6 are instructed to re-execute, and the load pile graph is displayed again as shown in FIG. 3B.

[0009]

The production schedule planning apparatus of the present invention can create a production plan that simultaneously considers the loads of a plurality of processes at a production site where the load varies depending on the process, so that the leveling of the load of the production plan can be performed at a finer level. Since the above can be taken into consideration, the quality of the production plan can be improved, and a more feasible production plan can be created.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing a display example of a load pile graph display unit 6 shown in FIG.

3 (a) and 3 (b) are a change information input unit 8, a correction result updating unit 9, a production schedule information storage unit 3, a load pile execution unit 4, and a load pile graph display unit 6 shown in FIG. It is the figure which showed the relevance.

[Explanation of symbols]

 1 Production plan storage unit 2 Production schedule determination unit 3 Production schedule information storage unit, 4 Load pile execution unit 5 Process information storage unit 6 Load pile graph display unit 7 Supplemental data calculation / display unit 8 Change information input unit 9 Correction result update unit 9 10 Process schedule planning department

Claims (1)

[Claims] 1. A product name, production quantity, scheduled start date, delivery date, price, process procedure of a product, and processing time per unit quantity in the process are stored for each lot to be produced. Production plan storage, (B) Production site process and facility-specific capabilities, scheduled work time,
An information storage unit that stores scheduled stop times, and (C) each lot unit based on the scheduled start date, the process procedure, each process, the processing time, and the production quantity stored in the production plan storage unit. The load time for each process is calculated by multiplying the processing time of each process by the production quantity, and the load time is sequentially added from the scheduled start date according to the process procedure to calculate the start time for each process. An estimated production date determination unit to be stored in the information storage unit, and (D) the process-based load times stored in the production schedule information storage unit are aggregated in a given time mesh unit for each process. A load heap execution unit that calculates the load of the process, and (E) A heap graph display unit that creates a heap graph for each process from the results of the load heap execution unit, and that simultaneously displays multiple graphs, and (F) Information of the production schedule information storage section And the time and completion quantity for completing the final process of the lot are calculated from the production quantity in the lot unit stored in the production plan storage unit, and are aggregated in a time mesh unit given in advance. The sales amount is calculated from the product of the unit price data and the completed quantity, and a graph is displayed at the same time as the result of the piled graph display unit, and a supplementary data calculation / display unit, and (G) a lot to be changed, a process name, Change information input to enter the process start time, and (H) the process start time of the target process of the target lot stored in the production schedule information storage unit based on the information input in the change information input unit. Change the start time of each process of the other process of the target lot in parallel according to the change, and issue a re-execution command to the pile execution unit and the load pile graph display unit. And (I) a process-based schedule planning section that extracts the process-specific start time of each lot for each process from the information in the production schedule information storage unit and displays it in order of time. Production schedule planning device.