JPS63162145A - Production using ic card - Google Patents

Abstract

PURPOSE:To cut labor cost and properly execute the inventory management and production management by properly operating each production device by using an IC card in which the complicate information is memorized, in substitution for 'kanban'. CONSTITUTION:An operator on a site attaches an IC card 7 issued from an IC card issueing means 2 onto each pertinent product or lot. In each production device 3, a product 9 which is transported is set onto the device 3, and the IC card 7 attached onto the product 9 or the belonging lot is read by a production work instruction means. The production device 3 produces the pertinent product 9 according to the production work instruction information memorized in the IC card 7. The production work result information for each product 9 at each position is written into the IC card 7 by a data input means 4, if necessary. Finally the production work result information memorized in the IC card 7 is read out by a result information reading means.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention is directed to arranging a plurality of manufacturing devices along a production line, and transferring work in process brought in from upstream of the production line to the production line. Involved in the production method of extracting finished products from the downstream of
In particular, the present invention relates to a production method using an IC card in which each manufacturing device is controlled using an IC card.

(Prior Art) Many manufacturing processes and parts are required to manufacture one product in a production factory. Usually, multiple manufacturing devices are arranged along a production line, and work-in-progress is brought in from upstream of this production line, and is sequentially manufactured and processed by each manufacturing device arranged on the production line. . Then, it is taken out as a finished product from the downstream end of the production line.

However, as the number of manufacturing equipment installed and the number of types of parts increases, it is necessary to operate them efficiently.
It is necessary to strictly control the manufacturing status of each manufacturing device and the number of work-in-progress items brought in. The "kanban system" is adopted as one of the methods for managing the products of each production process at such manufacturing sites. In this "Kanban system," for example, a 1ii
9 Attach a "ganban" card consisting of a cn+ card and a width of about 20cn+. This "kanban" is the part name of the product or lot to which this "kanban" is attached.

The quantity in the lot, the name of the manufacturing equipment to be transported, etc. are written. In addition, simple manufacturing instructions for each manufacturing device may also be described.

Then, when the work-in-progress is carried into the production line, a "kanban" corresponding to the workpiece or lot is attached and sent to the production line. Then, when the corresponding product or lot is taken out from this production line as a finished product, the "kanban" is removed. The removed ``kanban'' is returned to the work-in-process entrance of the production line.

If this type of production method adopts the "Kanban method", the number of "Kanban" issued is determined in advance according to the type of product, so the number of "Kanban" in the production line can be kept track of at all times. has been done. Therefore, since the number of products on the production line can be grasped, production adjustments and inventory management can be performed accurately. Furthermore, by looking at the "kanban," on-site workers can understand the destination of the products or lots to which this "kanban" is attached and the rough operations in the manufacturing equipment.

By adopting the "Kanban system" in this way, it is possible to carry out accurate quantity control and the smooth flow of products on the production line.

However, even in the production method that adopted the above-mentioned "Kanban system", there were still problems such as the following that need to be improved. That is, in recent years, with the increase in the number of types of i-cotton products sold and shipped, factory production lines are also shifting to high-mix, low-volume production. Therefore, the number of lots of the same product flowing through the production line is reduced, and a wide variety of products flow through the production line. As a result, the number of types of ``kanban'' that must be prepared becomes enormous, and the amount of work required to create ``kanban'' also increases. Furthermore, the task of finding the corresponding "kanban" and attaching it to each product cannot be completed manually by the worker.

In addition, since it is necessary to frequently change stages in each manufacturing equipment installed on the production line, it is not possible to use only the manufacturing instruction information written on the "Kanban" to change each manufacturing equipment for each product with few differences. It was impossible to fine-tune it.

<Problems to be Solved by the Invention> As described above, the conventional production method employing the Kanban system has the problem of not being able to cope with complex production management in high-mix, low-volume production.

The present invention was made based on these circumstances, and its purpose is to use an IC card that can store complex information instead of a "kanban" to make each manufacturing device more suitable. It is an object of the present invention to provide a production method using an IC card that can operate reliably, reduce labor costs, and more accurately carry out inventory management and production management.

[Structure of the Invention] (Means for Solving Problems) In the production method using an IC card of the present invention, manufacturing processing instruction information in each manufacturing device for each product flowing on the production line or for each same lot is provided. IC card issuing means is provided for issuing an IC card storing information, and manufacturing processing instruction means for reading manufacturing processing instruction information stored in each IC card and inputting it to the corresponding manufacturing apparatus to perform a predetermined processing is provided in each manufacturing apparatus. A data input means is provided along the production line for inputting manufacturing processing result information at the production line position where the product or lot is installed into an IC card, and further reading the manufacturing processing result information stored in the IC card. A means for reading result information is provided downstream of the production line. Then, the IC card issued by the IC card issuing means is passed through the production line in synchronization with the product or lot corresponding to this IC card flowing through the production line, and each manufacturing device is operated in synchronization with the product or lot corresponding to the product. The manufacturing processing result information is set in the manufacturing processing instruction means and the data input device, and finally the manufacturing processing result information is read by the result information reading means.

(Function) In a production method using an IC card configured as described above, a field worker attaches an IC card issued by the IC card issuing means to each corresponding product or lot. Then, in each manufacturing device, the imported product is set in the device, and the IC card attached to the product or the lot to which it belongs is read by the manufacturing processing instruction means. Then, the manufacturing device manufactures and processes the corresponding product according to the manufacturing and processing instruction information stored in the IC card.

Then, if necessary, the data input terminal Q writes the manufacturing processing result information of each product at that position onto the IC card. Finally, the manufacturing process result information stored in the IC card is read out by the result information reading means. In this way, since the amount of information that can be stored on an IC card is dramatically increased compared to the conventional kanban, detailed production management can be carried out.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

The figure is a schematic diagram showing a production facility to which the production method using the IC card of the embodiment is applied. That is, production line 1
from the upstream end to the downstream end along the IC card issuing device 2. n manufacturing devices3. Data input device 4. IC card collection devices 5 are arranged. Further, a central control device 6 consisting of a host computer is connected to the IC card issuing device 12I3 and the IC card collecting device 5. In addition, each manufacturing device 3 is equipped with a card reader/writer 8 for reading the manufacturing processing instruction information stored in the IC card 7 issued from the IC card issuing device 2' and inputting data as necessary. It is being In general, the data input device 14 includes, for example, a product inspection device 10 for carrying out a product inspection of the workpiece 9 flowing at this position on the production line 1, and the resulting manufacturing processing result information (quality data). A card reader/writer 11 is attached to write the information into the corresponding IC card 7. The IC card collection device 5 also stores various data including manufacturing processing result information written to the IC card 7 by the card reader/writer 8 of each manufacturing device 3 and the card reader/writer 11 of the data input device 4. A card reader 12 for reading is attached.

Further, the central control device 6 controls the entire production facility, and sends various commands and data to be written to each IC card 7 to the IC card issuing device M2. The various commands and data to be incorporated into each IC card 7 include, for example, the workpiece 9 that is carried into the production line 1.
The product number that specifies the product number, the quantity that constitutes the lot when this product 9 is distributed in lots, and the ilJ ml program, etc. when manufactured and processed by each of the first to nth manufacturing devices 3. This is manufacturing processing instruction information.

Further, the IC card collection device 5 uses a card reader 12 to collect the I/O of the finished product 9 taken out from the production line 1.
The product number and manufacturing processing result information read from the C card 7 are transmitted to the central control device 16. The central control device 6 is I
Based on the data input from the channel recovery device 15, production status, completion data, quality data, yield data, etc. are extracted and printed out as a report or displayed on a CRT display section.

Next, the operation of the production equipment configured as described above will be explained.

When the IC card issuing device 2 issues the IC card 7 storing the above-mentioned various information, the IC card 7 is attached to the corresponding product 9 and sent from the upstream end of the production line 1 to this production line. In addition.

When the product 9 is small, it is attached to a container that stores the product 9. In addition, in order to attach IC cards 7 of the same standard to all the products 9, simple symbols and color coding are applied to the exterior that houses the IC cards 7, so that workers can at least visually inspect each product 9. I make it possible to differentiate. In other words, it has the function of a conventional "kanban".

Then, the operator of each manufacturing device 3 manufactures the product 9!
At the same time, the corresponding IC card 7 is inserted into the card reader/writer 8 to read the manufacturing processing instruction information (control program) to be executed by this manufacturing apparatus 3 stored in the IC card 7, and then the manufacturing starts. Start up device 3. Then, the corresponding manufacturing apparatus 3 executes the specified manufacturing process for this product 9. Note that when the manufacturing process in the manufacturing apparatus 3 is completed, the card reader/writer 8 can write the manufacturing process completion information to the IC card 7.

In this way, each of the first to nth manufacturing apparatuses 3 executes the designated manufacturing process.

In addition, a product inspection device 10 disposed at an intermediate position of the production line 1 inspects (quality inspection) the manufacturing and finishing state of each workpiece 9 passing through that position, and transmits the inspection results to a data input device 4. Then, it is written to the corresponding IC card 7 via the card reader/writer 11.

When the above processing is completed, the object to be measured 9 is taken out from the production line 1 as a finished product. Then, the worker collects the IC card 7 attached to the finished product and inputs it.
Insert the IC into the card reader 12 of the C card collection device 5.
Various data other than manufacturing/processing instruction information stored in the card 7 are read. The various data read are transmitted to the central control device 6 as described above.

I after various data are read by the IC card collection device 5
The C card 7 erases various data other than the above-mentioned manufacturing processing instruction information and product number using a separately provided card reader/writer. Then, the IC card 7 storing the product number and manufacturing processing instruction information is returned to the upstream end of the production line 1, attached to the work-in-process product 9 of the same product number, and sent to the production line 1 again.

In addition, the product 9 with the corresponding product number will be on this production line 1 for a long time.
If the product 9 with the corresponding product number is not processed or the production of the product 9 with the corresponding product number is discontinued, the IC card after being collected by the IC card collection device 5 and having various data read by the card reader 12
The above product number of card 7.

Clear all memory contents including manufacturing processing instruction information.

Then, it is set in the IC card issuing device 2 as a new IC card 7. That is, the IC card 7 is reused.

If the production method uses such an IC card, the I
If the C card 7 has a storage capacity of, for example, 64, it can store approximately 8,000 characters at the same time, so the amount of information that can be carried can be increased by an order of magnitude compared to the conventional "kanban".

Therefore, subtle differences in manufacturing and processing control due to different product numbers of each product 9 in each manufacturing apparatus 3 can be controlled using only the manufacturing and processing instruction information (control program) stored in this IC card 7. As a result, if rough control instructions are set in advance for each manufacturing device 23 from the central control device 6, then each manufacturing device 23 can be operated independently by reading each IC card 7. Therefore, it is possible to reduce the burden on the central control device 6 and to operate each manufacturing device 3 efficiently.

Furthermore, since the operator of each manufacturing device 3 does not need to know how to operate each product 9, the burden on the operator can be significantly reduced.

In addition, since the IC card 7 stores the manufacturing processing result information (quality data) of the product 9, the information (data) can be stored after the product 9 is taken out from the production line 1 as a finished product. Quality data by reading and analyzing with central IllW device 6.

It is possible to understand yield data. That is,
Since each of the above-mentioned data can be grasped at the same time as the manufacturing process in the production line 1 is completed, it is possible to immediately take countermeasures when any abnormal data is discovered.

At the same time, the product number can be read and the production status can be grasped by aggregating this information. In this way, compared to the conventional "Kanban system", it is possible to automatically obtain a large amount of various data without the need for people to attend.

In addition, the IC cards 7 can be reused by erasing their memory contents, so even if the production method shifts to a high-mix, low-volume production system, if a certain number of IC cards 7 are prepared at the beginning, the rest can be done. Since there is no need for replenishment, manufacturing costs can be reduced from a long-term perspective.

Note that the present invention is not limited to the embodiments described above. That is, in addition to the above-mentioned information, different information may be added to the IC card 7 as necessary.

[Effects of the Invention] As explained above, according to the production method using an IC card of the present invention, an IC card capable of storing complex information is used instead of a "kanban".

Therefore, each manufacturing device can be operated properly, labor costs can be reduced, and inventory management and production management can be executed more accurately.

[Brief explanation of the drawing]

The figure is a schematic diagram showing a production facility to which a production method using an IC card, which is an embodiment of the present invention, is applied. 1... Production line, 2... IC card issuing device, 3
... Manufacturing equipment, 4... Data input device, 5... I
C card collection device, 6... central control device, 7... I
C card, 8.11...Card reader/writer, 9.
...Product, 10...Product inspection device, 12...Card reader. Applicant's agent Patent attorney Takehiko Suzue Procedure $147 Official document (method) 1. Display of the case Japanese Patent Application No. 61-306767 2, Name of the invention Production method using IC cards 3, Person making the amendment Relationship to the case Patent applicant (307) Toshiba Corporation 4, Agent Kasumigaseki, Chiyoda-ku, Tokyo 3-7-2 UBE Building 7,
Contents of the amendment (1) In the fourth line of page 16 of the specification, the word “figure” has been replaced with “
Figure 1” is corrected.

Claims (1)

[Claims] A production method in which multiple manufacturing devices are arranged along a production line, and work-in-progress items brought in from upstream of the production line are sequentially processed by each of the manufacturing devices, and finished products are taken out from downstream of the production line. In the method, an IC card issuing means for issuing an IC card storing manufacturing processing instruction information in each manufacturing apparatus for each product or for each same lot; manufacturing processing instruction means for reading manufacturing processing instruction information and inputting it into the manufacturing apparatus to perform predetermined processing; and manufacturing processing result information provided along the production line for the production line position of the workpiece or lot. an IC card issued by the IC card issuing means, comprising a data input means for writing the information into the IC card, and a result information reading means provided downstream of the production line for reading manufacturing processing result information stored in the IC card. is passed through the production line in synchronization with the product or lot corresponding to this IC card flowing through the production line, and is set in the manufacturing processing instruction means of each of the manufacturing devices in synchronization with the product, and the data A production method using an IC card, characterized in that the IC card is set in an input means, and the manufacturing processing result information is finally read by the result information reading means.