JPH04176546A - Progress control method - Google Patents

Abstract

PURPOSE:To detect the problem generation from the comparison of the target production quantity coincide with the present state with the actual result, by deciding an aiming production quantity from the present state of production, an order receipt information and a standard value. CONSTITUTION:A host computer 1 stores a transmitted information. And it multiplies the number in process of an actual result information by the standard value of the standard time of the process after the process in process to calculate daily the load manday thereafter. Also, the lot number is indexed from the number of orders of a received order information, it is assumed to manufacture in the order of an eariler delivery until the day of a lead time from after the part procurement day in a lot unit, the daily unit is multiplied by the standard time of a lot size and the load manday is calculated. In the case of the calculated load manday exceeding the value of the capacity of the standard value, the manufacture start day is made in the following day, and the calculation is performed once again. And, the comparison process as to whether or not there is the process that the production quantity does not meet the target production quantity is performed once a day, in the night time of the day, and an alarm is output to the CRT of a terminal 5 to the process having a not meeting process.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a progress management system, particularly to a production information system having a process performance collection function and order information in a production factory that produces a plurality of products by combining a plurality of production equipment. Regarding the progress management method of the production line where the system has been introduced.

[Conventional technology]

Conventionally, this type of progress management method collects actual production information on the production line, calculates current information such as work-in-process status and number of outputs in real time or batch processing, and displays production performance information on a CRT, restore, etc. Display using
It compares production results with standard values and issues an alarm if a problem deviates from the standard values.

[Problem to be solved by the invention]

In the conventional progress management method described above, when a fluctuation in production occurs on a production line where the production mode is variable, an alarm is generated or a problem occurs if the production volume deviates from the standard value even if it is not a problem. There is a problem that an alarm will not go off if the actual value is within the standard value even if the actual value is within the standard value, making it less reliable to find the problem.Also, there is the problem that it takes a lot of man-hours to compare the production plan, actual information, and the standard value. .

[Means to solve the problem]

The progress management method of the present invention is a progress management method for a production line in which a production information system having a process performance collection function and order information has been introduced. Based on the information and process performance status, calculate the start date to complete manufacturing within the delivery date of the received order, load the load including current work-in-progress information within the capacity of the production line, and achieve the made-to-order production volume. The system calculates the target output volume for the target output, compares this target output volume with the actual production output compiled by the production information system, and outputs an alarm if the actual production output is lower than the target output volume. .

〔Example〕

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a configuration diagram of a production information system for explaining one embodiment of the present invention. 1 is a host computer for the production information system, 2 to 4 are terminals that collect results from equipment and processes, and 5 is a CRT-equipped terminal used by managers.
These are connected to an online network 6.

When the production line is in operation, the terminals 2 to 5 transmit the equipment operating time, equipment operating time, number of products produced, and number of defects to the host computer 1 as actual values. The host computer 1 stores the transmitted information.

FIG. 2 is a diagram showing an example of a data file in which standard values for each product name in a production line provided in the host computer 1 are stored. This data file has data for each product name, where 7 represents the product name, 8 represents the process procedure of the product, and 9 represents the defined standard capabilities of each process.

Capacity represents man-hours and indicates the number of man-hours that can be operated in one day. 10 is the upper limit of that ability. 11 is the daily output quantity of the process, 12 is the manufacturing unit 10
Manufacturing lead time (unit: hours), 13 indicates the standard time (unit: 2 minutes) to manufacture one product. Hereinafter, standard time 13 will be referred to as 5TI3.

FIG. 3 is a diagram showing an example of the contents of a file stored in the production information system that stores one month's worth of production plans for each product name. 14 is the order number to be produced, 15 is the product name corresponding to order number 14, 16 is the order quantity corresponding to order number 14, 17 is the order number, 14 is the delivery date, and 18 is the collection of parts used for order number 14. It represents the day.

FIG. 4 is a diagram showing an example of the contents of a target output amount data file in which data to be compared when outputting an alarm is stored for each process. 19 is the process name of the production line, 20 is the name of the product to be produced, and 21 is the target volume of output calculated on a daily basis.

FIG. 5 is a diagram showing an example of production performance information for each process compiled from the production information system. 22 is the date, 23 is the product name, 24 is the quantity produced for each product name on date 22, 25 is the average monthly lead time, which is stored by product name, and 26
is the current number of work in process for each process.

The processing of the present invention using the above data files will be explained. In addition to Figures 2 to 5, standard lot sizes are also determined as product conditions.
The manufacturing unit shall be executed with a defined lot size. Furthermore, the period for determining the target volume for comparison shall be once a month, and shall be conducted at the end of the month. First, the number of work-in-progress 26 in the performance information shown in FIG. 5 is multiplied by the standard value of 5T13 for processes after the in-process process to calculate the future man-hour load on a daily basis. In addition, the lot number is determined from the order number 16 in the order information in Figure 3, and assuming that the lot is manufactured in order of earliest delivery date from the parts procurement date to the lead time date, the lot size of 5T1 is calculated in daily units.
3 to calculate the load man-hours. If the calculated load man-hours exceeds the value of capacity 9 of the standard value in FIG. 2, the manufacturing start date is set to the next day and the calculation is performed again. If it still exceeds your capacity, do it again the next day. Repeat this to level out the load. At this time, if the manufacturing completion date is past the delivery date, the capacity is increased to the upper limit capacity 10 and the production start mill is set so as to meet the delivery date. When the manufacturing schedule is determined, the production quantities are calculated daily for each process and stored as target output quantities for each process and product name, as shown in FIG.

Once a day, at night, a comparison process is performed to determine whether there is a process whose output quantity is less than the target output quantity shown in Figure 4, and an alarm is output to the CRT of the terminal 5 for any process that does not meet the target output quantity. .

〔Effect of the invention〕

As explained above, the progress management method of the present invention determines the target output quantity based on the current production status, order information, and standard values. Since the occurrence of a problem is detected by comparing the quantity and actual results, it is possible to generate an alarm that is closer to the real problem, so the problem can be resolved quickly, and predicted values can be calculated when formulating measures to solve the problem. This allows early decision-making and management with a new target quantity, which has the effect of improving delivery deadline compliance and productivity.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of a production information system for explaining an embodiment of the present invention, and Fig. 2 is a diagram showing an example of a data file in which standard values for each product name on a production line held by the production information system are stored. , Figure 3 is a diagram showing an example of the contents of a file that stores one month's worth of production plans for each product name held by the production information system, and Figure 4 is a diagram showing an example of the contents of a data file for target production volume. , FIG. 5 is a diagram showing an example of production performance information of processes compiled by the production information system. 1...Host computer, 2, 3, 4.5...Terminal, 6...Online network.

Claims (1)

[Claims] In a progress management method for a production line in which a production information system with a process performance collection function and order information has been introduced, orders can be determined based on the standard production capacity, standard lead time, order information, and process performance status built into the production information system. Calculate the start date so that manufacturing can be completed within the delivery period, load the load including current work-in-process information within the capacity of the production line, and calculate the target volume to achieve the order production volume. This progress management method is characterized by comparing the target output amount with the actual production output aggregated by the production information system and outputting an alarm if the actual production output is lower than the target output amount.