JPH0741525B2 - Production line management system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a production control system for sequentially instructing a worker through a terminal device to sequentially perform a work process in order to separately manufacture a product through a plurality of work processes. It is about.

(Prior art) In a sewing factory where multiple types of sewing machines are installed and the division of labor is performed for each production item, the unit work time required to process a certain amount of processed products is preset for each process of the division of labor for each item. Then, the control device provided in each division of labor instructs the worker to start the next work at the end of the unit work time.

(Problems to be Solved by the Invention) However, the above system merely determines the end of the unit work by time management, and does not consider the processing capability of each individual worker. For this reason, in a department such as a worker under training who is in charge of low skill, when the work is delayed and the unit work is not completed within the predetermined time, the work based on the instruction of the control device is not performed, Not only the process but also the progress of other processes may be adversely affected, and the entire division of labor may not be performed smoothly.

Structure of the Invention (Means for Solving Problems) In order to solve the above-mentioned problems, the present invention relates to the technical level of the work process instructed by the worker and the work skill of the worker performing the work process. The degree of work skill of the worker is in the technical level area as a result of the determination by the first determination means for determining whether the work skill level is in the area of the technical level by comparing In the case of, the first calculation means for calculating the necessary work time for the expert based on the preset reference time for the work process and the work skill of the worker, and the result of the judgment by the judging means. If the work skill level of the worker is not within the technical skill range, the necessary work time for the trainer is calculated based on the reference time preset for the work process and the work skill level of the worker. Second computing means and first or second computing means The storage means for storing the required work time for the expert or trainer calculated by the above, and the required work time stored in the storage means are read out, and the work step instructed by the required work time and the operator is started. Second judging means for judging whether or not the required working time has elapsed after the worker is instructed of the work process based on the elapsed time after When it is determined that the required work time has elapsed since the work process was instructed, a work instruction means for instructing a new work process is provided.

(Operation and effect) By adopting the above-described means, the present invention sets the required work time of one work process to either of two types of work time for the expert or the trainer according to the skill level of the operator. Then, the next work process is instructed to the worker according to the required work time. Therefore, a predetermined amount of work is performed within the required work time that matches the processing capacity of the worker, the work delay is extremely reduced, and the entire division of labor work can be smoothly performed.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

Various sewing machines (not shown) are installed in the sewing factory, and one divisional production group is formed for each production item. Then, as shown in FIG. 1, the terminal device 2 installed in each sewing machine is connected to the control device 4 on the host side via the communication controller 3.

The control device 4 comprises a central processing unit (CPU), a read-only memory (ROM), and a read-write memory (RAM). The ROM has function data for each sewing machine, sewing machine number data, work priority data, and work data. Name data, skill level data showing the skill level of each work, list of worker code data, standard time data showing the time required to sew one work cloth in each process in seconds, lot for each production item Data indicating the number is stored.

Then, the CPU sends data such as work name data, technical name data, lot number data, worker code data list, etc. necessary for performing work to the terminal device 2 of the sewing machine corresponding to the sewing machine number data selected according to the function data for each sewing machine. It is designed to output a group.

As shown in FIG. 2, the terminal unit 2 is provided with a central processing unit (hereinafter referred to as CPU) 5 for the terminal unit, and the CPU 5 has a start switch 6, an end switch 7, a work memory 8 and a program memory 8a. , A magnetic card reader 9, a clock counter 10, and a liquid crystal display 11 are respectively connected. The CPU 5 constitutes the first and second calculating means and the first and second judging means of the present invention, and the working memory 8 constitutes the storage means of the present invention. The magnetic card reader 9 reads various data input from the magnetic card 12 and outputs the data to the CPU 5.
The code data of the worker, the skill data of the worker, the technical skill level data for each skill level data, and the correction rate data for the skilled worker and the trainer based on this skill level data are recorded in 12. There is.

The work memory 8 is a readable and writable memory, and stores a list of code data of a worker having the operating ability of the sewing machine, the technical level data, and the standard time data input from the control device 4. It has become. A read-only memory is used as the program memory 8a, and the work instruction request time data representing the time at which the CPU 5 outputs the work instruction request signal to the control device 4 and the operation program of the CPU 5 are stored. In addition, the clock counter
10 measures the time in minutes, and outputs the measured value to the CPU 5.

When the worker name data 13 is input from the magnetic card 12 to the CPU 5, the CPU 5 reads the worker code data list from the work memory 8 and holds the magnetic card 12 when the list contains code data. Make sure that the workers have the necessary skills for the process.

The data group of the magnetic card 12 is the magnetic card reader 9
Read in and stored in the work memory 8. Also, CP
U5 reads the standard time data and the quantity data based on the rod number data from the working memory 8, finds the reference time required for the work process in advance by the calculation of multiplying the standard time and the quantity, and further the expert time at this reference time. After adjusting the reference time to match the skill level of the worker by multiplying the correction rate for training or trainers, divide this value by 60 to convert the required time into minutes and calculate the required working time To do. Then, the minute-measured value of the clock counter 10 is subtracted from the required work time, and this value is constantly displayed on the display unit 11 together with the work name and lot number so that the worker recognizes the decrease in the necessary work time.

On the other hand, the work instruction request time data stored in the program memory 8a is stored in the work memory 8 by the CPU 5, and the CPU 5 determines the work instruction request time immediately before the end of the required work time based on the subtraction operation of the clock counter 10. When the CPU 5 recognizes that it has reached, the CPU 5 outputs a work instruction request signal to the control device 4. Then, the control device 4 searches for the work name and work place to be performed next by the worker based on the various data in the ROM based on the work instruction request signal, and based on the result, sends the work instruction signal to the terminal device 2. It is output, and this is displayed on the display unit 11.

Now, the operation of the production line management system configured as described above will be described below with reference to the flowchart of FIG.

When the operator reads the magnetic card 12 with the magnetic card reader 9, the data of the magnetic card 12 is input to the CPU 5,
In step S1 (hereinafter step is simply referred to as S),
It is confirmed that the worker code data is in the worker code data list stored in the work memory 8. If the operator code data does not exist in the data list, the magnetic card reader 9 waits until the appropriate data on the magnetic card 12 is read. When the worker code data is confirmed in the data list, when the worker operates the start switch 6 in S2, the CPU 5 reads the skill level of the process from the work memory 8 in S3. Then, in S4, this technical level is compared with the technical level of skill of the operator input from the magnetic card 12, and it is determined whether or not the processing capacity of the worker in the work step is in the skilled area. When the processing capacity of the worker is in the skill area, the necessary work time for the expert is calculated in S5, and when it does not reach the skill area, the process is skipped to S9 and the necessary work time for the trainer is calculated.

After that, the required work time is stored in the work memory 8 in S6, and then, based on the measurement operation of the clock counter 10, it is determined in S7 whether or not the work instruction request time, which is a predetermined time before the end of the required work time, is reached. Is determined. Then, when the result of this determination is NO, the process returns to S7 after the calculated value of the clock counter 10 is subtracted from the required work time in S10, and the same operation is repeated until it is confirmed that the work instruction request time has been reached. Then, the determination result in S7 is YES
In this case, in S8, a work instruction request signal is output to the control device 4. The subtracted value in S10 is
Since it is displayed in 1 minute by minute, the operator can visually check the remaining time required to perform the process.

When the above-described operation of the terminal 2 approaches the end, the control device 4
Is used for the next work while searching the work to be performed next by the worker based on the work instruction request signal sent from the terminal device 2 and displaying the information on this on the display 11 to inform the worker. Various data for performing the process are output to the terminal device 2 of the sewing machine. Since this operation is performed before the end of the required work time, the worker can obtain information about the next process prior to the end of the process, and the transition to the next process saves time waste and is smooth. Done in the state.

As described above, in this embodiment, the timing of the work instruction request time is adjusted in consideration of the processing ability of the worker in the process so that even a worker with a low degree of skill is not unreasonable. Therefore, work delay in the process is avoided,
It does not adversely affect other processes.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing the connection between the host-side control device and the terminal device in the present invention, FIG. 2 is a blog diagram showing the electrical configuration, and FIG. 3 is a flowchart showing the operation of the CPU. In the figure, 2 is a terminal device, 5 is a CPU constituting the first and second calculating means and the first and second judging means, and 8 is a working memory constituting a storing means.

Claims (1)

[Claims] 1. A production management system for sequentially instructing a worker through a terminal device in order to separately produce a product through a plurality of work processes, wherein the technical level of the work process instructed by the worker, A first judging means for judging whether or not the working skill level of the worker performing the work process is in the range of the skill level, and the result of the judgment by the judging means, When the work skill level of the worker is in the range of the skill level, the necessary work time is calculated for the expert based on the reference time preset for the work process and the work skill level of the worker. When the work skill level of the worker is not in the technical skill range as a result of the judgment by the calculating means and the judging means, the work time is based on the reference time preset for the work process and the work skill level of the worker. Performance time required for trainers And a storage means for storing the required work time for the expert or trainer calculated by the first or second calculation means, and the required work time stored in the storage means , Determining whether or not the required work time has passed since the worker was instructed to perform the work process, based on the required work time and the elapsed time after the worker started the instructed work process. A second determining means, and a work instructing means for instructing a new work step when it is determined that the required work time has elapsed after the worker has instructed the work step by the second determining means. A production line management system characterized by being equipped.