JPH07178654A - Production control system for manufacturing process - Google Patents

Abstract

PURPOSE:To provide a production control system for a manufacturing process capable of performing accurate production control by grasping control information of process progress information, quality information, etc., by on-line real time in each process of the manufacturing process, and supervising the manufacturing process. CONSTITUTION:By measuring inspection devices 2a to 2n provided in a manufacturing process, a process product 8 is inspected, and an obtained inspection data is stored in an inspection data memory means corresponding to a control number of the process product 8, to read an inspection data and control number data from the memory means. The data, as a measuring data, is transmitted to a host computer 1 and stored in an external memory device 4, to create control information, including manufacture progress information and product quality information in the process, based on the measuring data by a command of a supervisory terminal device 5, and the control information is fetched to the supervisory terminal device 5 and displayed, to perform supervising the manufacturing process and production control.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a production management system for manufacturing process, which manages production of a product in a manufacturing process consisting of a plurality of processes.

[0002]

2. Description of the Related Art Generally, products such as magneto-optical disks (O
In a manufacturing process such as MD), processing and processing are performed in each of a plurality of steps, and finally a product is manufactured. In this case, in order to control the progress of manufacturing in the manufacturing process and the quality of products, inspection is performed for each process,
Production control including quality control is performed by distinguishing good and defective products, selecting quality ranks, and classifying defects. Then, based on the data obtained by this quality control, the products are sorted according to quality rank, flowed to the next process and the corresponding process is executed, and the inspection result data of each process is entered on the inspection sheet, The inspection sheet is moved together with the product, and the inspection result data of the inspection sheet is input to the personal computer at the end of the processing in the final process to perform total management.

[0003]

In the above-mentioned conventional production management system for manufacturing process steps, the load is concentrated at the time of totalizing input, there is a risk of input error, and since there are multiple steps, totaling is performed for each step. The screen switching operation was required, and the process of totaling input was complicated. In addition, since it is not possible to grasp in real time the check information on the mixing of defective products and the loss of processed products, process progress information, and quality information for each process, feedback of these production control information can be performed accurately.
It was not possible to control the process progress and product quality.
Furthermore, when a disc is attached to both sides of a product like a magneto-optical disc to produce a product, even if only one side is defective, the product will be defective, so it is necessary to re-enter the defect information, which is troublesome. .

The present invention has been made in view of the current state of the quality control system for manufacturing process steps as described above, and an object thereof is management information such as process progress information and quality information at each step of the manufacturing process. It is intended to provide a production management system for manufacturing process steps capable of grasping the above in real time in real time, monitoring the manufacturing process steps, and performing appropriate production management.

[0005]

In order to achieve the above object, the present invention relates to a measurement / inspection device for performing measurement / inspection of a product manufactured by a manufacturing process including a plurality of steps, and the measurement / inspection device communicates with each other. The measurement / inspection device comprises: a host computer connected via a line; a storage device attached to the host computer; and a monitoring terminal device connected to the host computer via the communication line. Inspection data storage means for storing the inspection data of the product for each process step in association with the management number of the product, and the measurement inspection data and the corresponding management number data from the inspection data storage means are read out as measurement data. Communication means for transmitting to the host computer, wherein the host computer is configured to measure the measurement transmitted from the measurement / inspection device. Registration means for registering data in the storage device in association with each step of the manufacturing process, and reading and processing measurement data from the storage device, and manufacturing progress information and product quality information in the manufacturing process step. Management information creating means for creating management information including the management information creating means for creating management information according to an operation input to the management information creating means of the host computer. And an information fetching and displaying means for fetching and displaying the created management information.

The inspection data storage means of the measurement / inspection apparatus stores defective item number data for each batch process as measurement data.

[0007] Preferably, the measurement / inspection device has a display means for displaying measurement data, and the communication means receives the measurement data after inputting a confirmation signal indicating the display of the number of defective articles and the actual number of defective articles for each batch process. Is transmitted to the host computer.

When manufacturing a product composed of a plurality of products, the inspection data storage means of the measurement / inspection device stores the combination information of the inspection data and the management number of each of the plurality of products. Stored as inspection data,
The management information creating means of the host computer processes the inspection data of the combination information to create the management information.

[0009]

According to this structure, the measurement / inspection device performs the measurement / inspection of the product manufactured by the manufacturing process including a plurality of steps. In the measurement / inspection device, the inspection data obtained by the measurement / inspection manages the product. The inspection data and the corresponding management number data are read from the inspection data storage means by the communication means and are stored in the inspection data storage means in association with the numbers and transmitted to the host computer as measurement data.

Further, in the host computer, the measurement data transmitted from the measurement / inspection device is registered by the registration means in the attached storage device in association with each step of the manufacturing process, and the information creation command of the monitoring terminal device is issued. In response to the command from the means, the management information creating means reads the measurement data from the storage device, and creates management information including the progress information of the manufacturing in the manufacturing process step and the quality information of the product based on the measurement data.

Then, the management information created by the management information creating means is fetched and displayed by the information fetching and displaying means of the monitoring terminal device, and based on this display, the management information is grasped and monitored online in real time. The monitoring of the manufacturing process steps and the production control in the terminal device are appropriately performed.

Further, the inspection data storage means stores defective product number data for each batch process as measurement data.

Preferably, the communication means transmits the measurement data to the host computer after inputting a confirmation signal indicating that the number of defective products for each batch process is consistent with the actual number of defective products. This surely prevents defective products from being mixed.

Further, when manufacturing a product composed of a plurality of products, the combination information of the inspection data and the control number of each of the plurality of products is used as inspection data in the inspection data storage means of the measurement / inspection device. The inspection data of the combination information is stored and processed by the management information creating means of the host computer to create the management information. As a result, the production management of a product composed of a plurality of products can be efficiently performed.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the structure of the present embodiment, in which a process product S corresponding to each process is finished at a processing site S of a manufacturing process consisting of a plurality of n stages. Measurement / inspection equipment 2a, 2 for performing measurement / inspection of 8
b ... 2n are provided, and measurement / inspection devices 2a, 2b.
.., 2n are provided with reading discriminators 3a to 3n for reading the control numbers attached to the process products 8 to be measured and inspected, and these measurement and inspection devices 2a to 2n are , Connected to the communication line 7. Although not shown, the measurement / inspection devices 2a to 2n store the inspection data obtained by the measurement / inspection in the process product 8
Inspection data storage means for storing corresponding to the management number of
There is provided a communication unit for reading out the inspection data and the management number data from the storage unit and transmitting the data as measurement data to the host computer 1 described later via the communication line 7. In the present embodiment, when the number of measured and inspected process products to be batch processed reaches the preset number of processed batches, the operator is notified and the operator confirms the defective number display and the defective item number. Only when the confirmation signal is input by the communication means, the inspection data and the management number data are transmitted to the host computer 1 by the communication means.

In this embodiment, the host computer 1 is connected to the communication line 7, and the host computer 1 stores the measurement data transmitted from the measurement / inspection devices 2a to 2n in association with the production process. The external storage device 4 is connected to the host computer 1, the measurement data stored in the external storage device 4 is read out to the host computer 1, and based on the measurement data, the progress information of manufacturing in the manufacturing process step and the quality of the process product 8 are read. Management information creating means for creating management information including information is provided.

A monitoring terminal device 5 and a printer 6 for monitoring the manufacturing process are connected to the communication line 7, and the monitoring terminal device 5 issues a command to the host computer 1 to create management information. There is provided information acquisition display means for causing the means to create the management information and for displaying the created management information, and a monitor 5a for displaying the acquired management information. In this way, the management information captured by the monitoring terminal device 5 is displayed on the monitor 5a and the printer 6
But it is printed.

Next, the operation of this embodiment having such a configuration will be described with reference to FIGS.

FIG. 2 is a flow chart showing the data registration operation of this embodiment, FIG. 3 is a flow chart of the defective product mixing check operation during batch processing of this embodiment, and FIG. 4 is a description of the data registration format of this embodiment. 5, FIG. 5 is an explanatory diagram showing a registration data structure of the present embodiment, FIG. 6 is an explanatory diagram showing another registration data structure of the present embodiment, FIG. 7 is an explanatory diagram of a daily production report created in the present embodiment, FIG. 8 is an explanatory diagram of the process-based defect summary table created in this embodiment, and FIG. 9 is an explanatory diagram of the inventory status list created in this embodiment.

In this embodiment, the site S of the manufacturing process step is
The process / inspection devices 2a to 2n provided in the above process inspect the process product 8 after the processing of each step of the manufacturing process is completed, and the corresponding inspection data is obtained, and at the same time, the measurement and inspection devices 2a to 2n are provided. Read discriminator 3a
The control number of the process product 8 is detected by detecting the ID tag or the bar code by 3n. The inspection data of the process product 8 in each step measured in this way is stored in the storage means provided in each of the measurement and inspection devices 2a to 2n as the measurement data associated with the control number.

For example, the control number of the process product 8 is
If it is [C2B12B06201], the first 6 digits "C
2B12B "represents a lot, the next 2 digits" 06 "represents a batch processing number, the next 1 digit" 2 "represents a unit number, and the last 2 digits" 01 "represents a jig number in the unit. ing. Then, the inspection data of the process product 8 is automatically registered in the storage means according to the format of the management program in the measurement / inspection devices 2a to 2n as shown in FIG. That is, based on the information from the management number, the lot number “C2B12B” is displayed in the column 11, the date “92/05/12” is displayed in the column 13 by the calendar function built in the measurement / inspection devices 2a to 2n. The batch processing number “6” is registered and stored in the column 14 as the number in the batch processing as the number obtained by subtracting the number of defects up to the previous process.

When defective data is detected by the measurement / inspection devices 2a to 2n, the defective data is registered and stored in the column 15. In the table part including column 15, vertical column 1
8 is a unit number registration column, horizontal column 17 is a jig number registration column, and the defect occurrence inspection process number 1 is in the upper row of column 15.
5a and the defective item 15b are registered and stored in the lower row. In this way, in FIG. 4, it is registered that the product with the unit number “2” and the jig number “1” is determined to be defective in the defective item 1 in the process 1. In this way, if the batch number is the same in the same lot, the inspection data will be sequentially registered in the same format, and if it is a different lot or different batch processing number, a new page will be created each time and the inspection data will be created. Are sequentially registered and stored.

For example, a magneto-optical disk is used as a process product 8
In such a case, since the product is manufactured by laminating the magneto-optical disks, the product is determined to be defective even if only one side is defective. FIG. 5 shows the structure of the registration data in the single-sided process. In this case, the first 6-digit display 2
1 "C2F02B" represents the lot number, the next 6-digit display 22 "920512" represents the inspection date, and the next 2-digit display 23 "06" represents the batch processing number. Similarly, the next one-digit display 24 "2" indicates the unit number, and the display 25 "01" indicates the inspection completion flag, the display 26 "1" indicates the jig number, and the display 27 "01" successively. Represents an inspection process, and the last two-digit display "01" represents a defective item. Also in this case, the registration data having such a structure is used to sequentially perform registration and storage in the data registration format shown in FIG.

By the way, when the step of sticking disks to both sides is used, the registration data in the double-sided step of the structure shown in FIG. 6 is used, and [C2F02B9
205120620110101C2F02B0610
12] Display the first 22 digits of data [12] 31-38
Is the same as the one-sided process data structure described above. The next 6-digit display 39 "C2F02B" represents the lot number of the other process product 8, the next 2-digit display 40 "06" represents the batch processing number, and the one-digit display 41 " “1” is the unit number and the two-digit display 42 “0
“1” represents the inspection completion flag, and the last one-digit display 43
"2" represents the jig number in the unit. In this case, the registration data having such a structure is used to sequentially perform registration and storage in the data registration format shown in FIG.

The data registration operation in this case will be described with reference to the flowchart of FIG. 2. When defective data is detected by the measurement / inspection devices 2a to 2n in step S1,
In step S2, it is determined whether or not it is a double-sided processing step. If the double-sided processing step is determined, in step S3, the control number of the other process product 8 is retrieved from the control number of the defective product, Proceeding to step S5, the defect data on one side is also registered in the process product 8 on the other side. On the other hand, if it is determined in step S2 that the process is not the double-sided process, the process proceeds to step S4, and the defective data is registered in the defective product management number.

In this way, the inspection data of the process product 8 in each step is stored in the inspection data storage means of each of the measurement / inspection devices 2a to 2n as the measurement data associated with the control number and communicated. Host computer 1 via the communication line 7 as measurement data by means.
However, in the present embodiment, the transmission by the communication means is enabled only after the defective product mixture check by the operator. This checking operation of this embodiment will be described with reference to the flowchart of FIG.

When defective products are registered as described above, the number of defective products in the process is added to the column 16 of FIG. 4, but the quantity to be processed in batch units is set in advance, When the number of inspections reaches the set number of batch processes, a buzzer is notified to the operator, and the operator checks the defective product mixture by this notification. That is, the quantity of batch processing is set in advance and the processing is started. In step S11, the number of pieces (number of pieces = number of batch processing−number of defects up to the previous process) is displayed for each new batch processing unit, and the operator Confirm the display and the real number before work. Then
In step S12, the process product 8 is inspected by the measurement / inspection device in the process as described above, and if a defect is detected, the number of defects is cumulatively displayed, and in the determination of step S13, The measurement data is stored in the inspection data storage means of the measurement / inspection device until the number of inspections reaches the batch processing set number.

When the number of inspections reaches the batch processing set number in the determination of step S13, the process proceeds to step S14, where a buzzer is sent to the operator to notify the actual number of defective products and the integrated display of the number of defective products. Done, step S1
In 5, the operator checks the number of defective products and the number of accumulated defects, and if the check results match the display, a confirmation signal is input by the operator. In response to the input of this confirmation signal, the process proceeds to step S16, and the measurement data stored in the inspection data storage means of the measurement / inspection device of the process is transmitted to the host computer 1 via the communication line 7 by the communication means. To be done. If the check result does not match the display in step S15, the process proceeds to step S17, the batch format is checked with reference to the registration format, the cause of mixing or loss is confirmed, and correction is performed.

Next, the data registration operation on the host computer 1 side of the present embodiment will be described.

As described above, when the measurement data is transmitted to the host computer 1 by the communication means in step S16, the measurement data is transmitted in the host computer 1 as shown in FIG.
Some items of data as shown in FIG. 6 (19 to 2 in this case)
0 digit) determines the process, rearranges the measurement data by lot, batch processing order, and process order, and
Register to.

Next, the management information creating operation and the information fetching display operation based on the command from the monitoring terminal device 5 in this embodiment will be described.

In this embodiment, the operator operates the monitoring terminal device 5 to output a command signal, and the command signal is input to the host computer 1, and the management information creating means of the host computer 1 processes the management information. Operates according to the program. Then, the management information creating means creates management information including manufacturing progress information and product quality information in the manufacturing process step based on the registration data of each step, and the created management information is sent to the monitoring terminal device 5. Captured. In this way, the management information captured by the monitoring terminal device 5 is displayed on the monitor 5a and can be printed by the printer 6.

For example, when the command signal of the daily production management report of the process 1 is designated as the management information from the monitoring terminal device 5 and the work processing date D is designated and inputted, the management information creating means of the host computer 1 stores the command signal in the external storage device 4. The designated date is designated by 7 to 12 digits of the registered measurement data, the measurement data of the designated date is extracted, and the data of step 1 is selected from the extracted data. And the selected process 1
Data is first aggregated for each lot, and then for each defective item in the 21st to 22nd digits of the registered data, a daily production report of the format shown in FIG. 7 is created. Similarly for other steps, according to the command from the monitoring terminal device 5,
A daily production report for the process is created. The data of the daily production report thus created is taken into the monitoring terminal device 5, displayed on the monitor 5a, and printed by the printer 6 as necessary.

In the same manner, when the monitoring terminal device 5 issues a management-related defect information monthly report for the process month M of May 1992 as management information, the management information creating means of the host computer 1 causes the monitoring information to be displayed in FIG. As shown, a monthly production management report of the designated process of the designated month is created and taken into the monitoring terminal device 5. Further, when the monitoring terminal device 5 commands the inventory status list as of the management information at time 13:21 on June 12, 1992, the inventory information is generated by the management information creating means of the host computer 1 as shown in FIG. A status list is created and taken into the monitoring terminal device 5.

As described above, according to the present embodiment, in the manufacturing process step consisting of a plurality of steps, the manufacturing process proceeds while checking the quantity and preventing the defective product from being mixed, and the measurement / inspection devices 2a to 2n are operated. The measurement data is transmitted and stored in the host computer 1, the host computer 1 is operated in accordance with a command from the monitoring terminal device 5, management information related to the command is created, and the obtained management information is sent to the monitoring terminal device 5. Captured. Therefore, in the monitoring terminal device 5,
Based on the captured management information, the manufacturing process steps can be monitored online in real time, reducing the operational burden on the operator and performing accurate and highly accurate production management.

[0037]

According to the present invention, a host computer is connected with a measurement / inspection device for a product manufactured in a manufacturing process step and a monitoring terminal device via a communication line, and corresponds to the inspection data obtained by the measurement / inspection device. Based on the management number of the product to be managed, the management information including manufacturing progress information and product quality information is created by the host computer in response to a command from the monitoring terminal device, for example, in the form of daily report or monthly report, and the created management information Is incorporated into the monitoring terminal device, the monitoring terminal device is capable of grasping highly accurate management information online in real time, reducing the operational burden on the operator for monitoring the manufacturing process steps and production management. Can be done accurately.

When manufacturing a product composed of a plurality of products, the combination information of the inspection data and the management number of each of the plurality of products is used as inspection data in the inspection data storage means of the measurement / inspection device. Since the management information is stored and the inspection information of the combination information is processed by the management information creating means of the host computer to create the management information, it is possible to efficiently manage the production of a product including a plurality of products.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing a data registration operation of the same embodiment.

FIG. 3 is a flowchart of a defective product mixture check operation during batch processing according to the embodiment.

FIG. 4 is an explanatory diagram of a data registration format of the same embodiment.

FIG. 5 is an explanatory diagram showing a registration data structure of the embodiment.

FIG. 6 is an explanatory diagram showing another registered data structure of the embodiment.

FIG. 7 is an explanatory diagram of a daily production report created in the same example.

FIG. 8 is an explanatory diagram of a process-specific defect summary table created in the same example;

FIG. 9 is an explanatory diagram of an inventory status list created in the same example.

[Explanation of symbols]

 1 host computer 2a-2n measurement / inspection device 3a-3n reading discriminator 4 external storage device 5 monitoring terminal device 5a monitor 6 printer 7 communication line 8 process product

Claims (5)

[Claims] 1. A measurement / inspection device for measuring / inspecting a product manufactured by a manufacturing process including a plurality of steps, a host computer to which the measurement / inspection device is connected via a communication line, and a host computer attached to the host computer. Storage device and a monitoring terminal device connected to the host computer via the communication line, and the measurement / inspection device manages product inspection data for each step of the manufacturing process step. The host computer; and a communication means for reading the measurement inspection data and the corresponding management number data from the inspection data storage means and transmitting it as the measurement data to the host computer. Associates the measurement data transmitted from the measurement / inspection device with each step of the manufacturing process. It has a registration means for registering in the apparatus, and a management information creation means for reading out and processing the measurement data from the storage device to create management information including manufacturing progress information and product quality information in the manufacturing process step. The monitoring terminal device, an information creation command means for commanding the management information creation means of the host computer to create the management information in response to an operation input, and an information import display for loading and displaying the created management information. A production management system for manufacturing process steps, comprising: 2. The production management system according to claim 1, wherein the inspection data storage means of the measurement / inspection device stores defective product number data for each batch process as measurement data. 3. The measurement / inspection device has a display unit for displaying measurement data, and the communication unit displays the measurement data after inputting a confirmation signal for displaying a display of the number of defective products for each batch process and a matching of the actual number of defective products. 3. The production management system for manufacturing process steps according to claim 2, wherein the production management system transmits to the host computer. 4. The production management system for manufacturing process steps according to claim 1, wherein the management information includes a monthly production management report or a daily production management report. 5. When manufacturing a product composed of a plurality of products, the inspection data storage means of the measurement / inspection device stores the combination information of the inspection data and the management number of each of the plurality of products. 5. The manufacturing process according to claim 1, wherein the management information is stored as inspection data, and the management information creating unit of the host computer creates the management information by processing the inspection data of the combination information. Production control system for processes.