JPH069779B2 - Process control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a process control method suitable for multi-product, small-lot, and short-term production in a process for processing a piece of cloth and the like in which continuous processing and batch processing are mixed.

[Conventional technology]

In the finishing process of fabrics (especially woolen fabrics or wool-synthetic fiber mixed fabrics), preparation, firing, boiling, washing, shrinking, dyeing, drying, tentering, gluing, napping, fluff , Brush, gloss,
There are processes such as pressing, steaming, and inspection, and a processing machine table is installed in each process other than preparation and inspection. The order in which the piece of fabric is set in these steps is determined in advance in detail according to the type of product, and the raw fabric (unprocessed piece of fabric immediately after weaving) is finished into a final product by passing through each step.

First, the multi-product fabrics that have been carried into the preparatory process, which is the first process, are sorted into fabric products that have the same process sequence and the same processing conditions in each process, and 10 to 10 of the sorted fabric products are sorted. 20 pieces of cloth are sewn together by the sewing machine, and then the pieces are put together and loaded on one carriage. Then, according to a preset process sequence, a predetermined process is performed every time when passing through the machine base of each process, and a final product is finished in about 15 to 20 processes.
It should be noted that the conveyance of the unprocessed material between the processing steps is carried out by carrying a cart.

In general, such a processing process has a multi-product small-quantity production system in order to meet the recent demand, and therefore, the types of the process sequence are various and reach about 500.

In addition, in the machine base of each of the processing steps, in recent years,
With the progress of development of a machine stand aiming at high speed, the batch processing (processing processing for each one or multiple pieces) that has been frequently used in the past has been reduced, but the shrinking process, dyeing process, kettle steaming process, etc. are still processed. However, batch processing is performed in these steps. That is, the continuous processing and the batch processing are mixed in the finishing process of the fabric.

In general, the purpose of process control is to accurately grasp the operating rate, operating time, amount of work in progress, etc. for each process, and to predict and plan production.
It is to optimize the entire production process through progress control. Such optimization of the production activity is necessary for a process in which many kinds are produced and it is difficult to overlook the whole process, and it is indispensable in the finishing process of the above-mentioned woolen fabric.

Conventionally, when carrying out the process control in the above-mentioned finishing process, one card (a card with a bar code and a magnetic stripe) on which information can be easily input to the computer is attached to each piece of cloth, The computer terminal installed in each process conveys the information of each piece of goods conveyed from all the cards by conveying with the piece of goods, and the read information is processed by the central processing unit that links with the terminal, and the progress of each product and The method of managing the progress of each process was taken.

[Problems to be Solved by the Invention]

However, in such a processing step, when the workpieces are set in a batch process and the half of the load of one truck exceeds the number of processed rolls per batch, one piece of the waste loaded on one truck is used. It is necessary to perform batch processing by dividing it according to the processing waste per batch. Therefore, the smaller the number of processed fabrics per batch, and the longer the processing time per batch, the more the fabrics loaded on one cart before batch processing,
After batch processing, it will be distributed to other trucks, and the number of trucks required will increase. On the other hand, in order to avoid this, assuming that the number of loadings of one truck is the number of processings of one batch (4 to 6),
This causes a problem that a large number of carriages are required after the processing process is introduced.

Further, there is a problem that an error occurs in the process sequence due to a wide variety of process sequences and the fact that the unprocessed material is conveyed between the processes.

Therefore, the present inventors have arrived at the present invention as a result of repeated ingenuity in consideration of the above-mentioned actual conditions. That is, it is an object of the present invention to provide an efficient process control method in a complicated processing process such as a piece of cloth in which continuous processing and batch processing are mixed.

[Means for Solving the Problems]

A first aspect of the present invention for achieving the above object is a processing step in which continuous processing and batch processing coexist, and a plurality of workpieces are treated as one aggregate, and the workpieces are individually processed. A card having information is provided for each work piece, and one or a plurality of cards selected from one set is used as a representative card of the set, and the correspondence relationship between each individual card and the representative card is centralized in advance. The information is read only from the representative card by the terminal installed in each processing device in the processing device, and the read information is processed by the central processing device linked to the terminal device, and the progress of each process is progressed. And a process management method for managing the progress of each product, etc., one or a plurality of the above-mentioned aggregates are loaded and transported by one person, and a representative card of the loaded aggregates and a corresponding aggregate number are used as a trolley. table As well as, it is an gist to register the correspondence between the representative card and agglomerates number to the central processing unit.

In addition to the method of the first invention, the second invention is
In the current process, the central processing unit recognizes the work completion of the previous process based on the information read from the representative card through the terminal device and displays the result on the terminal device. The idea is to stop the work.

[Action]

 The operation of the method of the present invention will be described below.

According to the first aspect of the invention, since the correspondence relationship between each card and the representative card and the correspondence relationship between the representative card and the collective number are registered in advance in the central processing unit, the requested work piece is registered. When searching for, it is possible to easily obtain the collective number corresponding to the individual information of the workpiece, and display the obtained collective number even if a large number of workpieces exist. The target workpiece can be easily found by searching the trolley in which it is located.

According to the second aspect of the invention, in addition to the operation of the first aspect of the invention, the process sequence of the workpiece is confirmed before machining.
It is possible to prevent erroneous processing due to an incorrect order.

〔Example〕

 Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an example of a process control system for carrying out the method of the present invention. As shown in the figure, this process management system includes terminals (A ₁ ) to
(A ₂₀ ) (the number of processes is 20), central processing unit (B) and terminal (A
_It consists of a local area network (C) that links ₁ ) to (A ₂₀ ) with the central processing unit (B). The central processing unit (B) comprises a data processing unit (B1) and a process management unit (B2).

As shown in FIG. 3, the terminals (A ₁ ) to (A ₂₀ ) are input devices (D) such as keyboards, display devices (E) such as displays, control processing devices, memories, devices such as communication interfaces.
(F) and an external input device (G) such as a card reader.

Further, as shown in FIG. 4, the data processing unit (B1) is composed of a control processing device (H), a storage device (I) such as a memory, and a communication interface (J), and is shown in FIG. As described above, the process control section (B2) is an input device (K) such as a keyboard, a display device (L) such as a display, a control processing device, a device such as a memory and a communication interface (M), and an external input device such as a card reader. It is composed of (N).

A specific aspect of process management by the process management system having the above configuration will be described below.

Generally, a piece of fabric is managed by a product number, which is a number set for each type of product, and a number, which is a number set for each piece of fabric.

First, in the preparatory process before putting the piece of fabric into the processing step, create one card for each piece of fabric that has individual information of the piece of fabric (product number, piece number, process sequence, etc.) Attach it. A magnetic sprite is affixed to this card, and the information is recorded in that portion, and the product number of the piece of fabric and the process sequence number indicating the process sequence are written on the card. Then, the worker looks at this card, collects 10 to 20 pieces of pieces of the same process sequence number, and
Set as one set and one or a plurality of sets are loaded on one carriage. Then, one or a plurality of pieces of cloth are arbitrarily selected from the set of pieces, and they are used as the representative pieces of the pieces and the card is used as the representative card. Then, a set counter number corresponding to one set counter is set, and the number tag displaying this number is posted on the cart of the set counter. That is, in the case where a plurality of collective fabrics are loaded on one dolly, a plurality of number tags are posted on the dolly. After that, the data processing unit (B1) of the central processing unit (B) shown in FIG. 1 shows the correspondence relation between the set anti-number, the representative anti-number, the anti-number of each constituent anti-group forming the anti-set, etc. Register with.

Incidentally, in the finishing processing step of the piece material in which the continuous processing step and the batch processing step are mixed, in forming the above-mentioned collective piece,
It is desirable to match the number of pieces of one set of pieces with the number of pieces processed in one batch. For example, as shown in FIG. 2, set reciprocals (P), (Q), (R), and (S) are formed according to the number of processes in one batch, and these are set reciprocals (P) and (Q). ， By loading the set fabric (R) and (S) on one vehicle, respectively, even if the set fabric is divided and put into the machine bases (T), (U), (V) of the batch processing process, Later set anti- (P) and (Q),
The set fabrics (R) and (S) do not necessarily have to be loaded on the original carriage, and the batch production process can proceed from the completed fabric set (P) to the next step. Moreover, if the set anti- (R), (S),
If (Q) has the same process sequence and process conditions after that, it is assembled on the trolley loaded with assembly sets (R) and (S).
(Q) can be transshipped. When transposing a set counter (Q), it is sufficient to move the representative card and the set counter number tag of the set counter (Q) together with the set counter (Q), and no other work is necessary.

After loading the piece of cloth on the dolly in this way, the piece of cloth that has been set as the representative piece is clearly marked as a representative card, and all the cards of the collective piece are attached to the piece of dolly and put into the processing step.
At this time, the number of representative cards is 1 or more and less than or equal to the set number. However, if the number of representative cards is one, it is sufficient to specify to each card that it is a representative card. Since the processing at the terminal is limited to that one card, it is necessary to reset the representative card when this one representative card is lost. On the other hand, if the number of representative cards is more than one, it is necessary to clearly indicate on the card that it is a representative card, but the process at the terminal in each process can be performed on any one of the multiple representative cards. On the other hand, it gets better. Furthermore, if the representative card is all the cards in the set, it is not necessary to clearly indicate to the card that it is the representative card, and the process at the terminal of each process will be sufficient for any one of the set cards. Most convenient.

Next, in each processing step, the terminal card shown in FIG.
(A ₁ ) ~ (A ₂₀ ) By inputting to the external input device to read the information of the representative counter (the product number of the representative counter, the counter number) arrived, it is input to the terminal (A ₁ ) ~ (A ₂₀ ), The information is transferred to the data processing section of the central processing unit (B) via the local area network (C).
It is sent to (B1) and all the inversions of the corresponding set are processed in the computer. The processing in this computer will be described in detail in the section of the terminal device described later.

Next, the functions of this system will be described separately for the terminal device, the data processing unit, and the process control unit.

a. Description of terminal One of the representative cards attached to the stack is the third
By making the card reader (G) shown in the figure read, the terminal (A) confirms the information of the representative counter (product number and counter number of the representative counter), and the data processing unit (B1) shown in FIG. And request a search for relevant representative information. And the data processing unit (B1)
Executes the search, and thereafter sends data such as the device information, that is, the set counter number, the number of loaded counters, the device check information, and the processing conditions to the terminal (A) shown in FIG. The device check information is data for determining whether or not it is appropriate to mount the set fabric represented by the corresponding representative fabric on the processing machine base (whether or not the machining in the preceding process is completed). When the terminal (A) receives these data and the device check information is “the previous process is not completed”, this information is displayed on the display device (E) of the terminal (A). Sound an alarm and instruct the worker not to process the assembly. According to this display, the worker transports the relevant set to all the unfinished processes. On the other hand, if the device check information is affirmative information, the display device (E) of the terminal device (A) displays the set reciprocal number, the reciprocal load number, the processing condition, and the like. According to this display, the worker
After checking the set number and the number of loaded sets, set the corresponding set on the processing machine base and operate the machine base. After the processing is completed, the operator inputs the processing completion information to the terminal (A) by using the input device (D) of the terminal (A), and the terminal (A) receives the input and the local area network ( Central processing unit (B) via C)
This information is sent to the data processing unit (B1) of
1) recognizes the completion of processing of the corresponding representative and updates the device check information.

In this way, in each processing machine, by confirming whether or not it is appropriate to mount the collective reaction on the machine base before mounting the collective reaction on the machine frame, it is possible to make a mistake for the collective reaction conveyed by mistake. It is possible to prevent machining, and it is possible to shorten the production lead time by eliminating the need for correction machining required in case of erroneous machining.

As described in detail above, the terminals (A ₁ ) to (A ₂₀ ) shown in FIG.
A series of information processing for one set in each process performed between the central processing unit (B) and the data processing unit (B1) of the central processing unit (B) through each local area network (C) is called processing in the computer. .

b. Description of the data processing unit The data processing unit (B1) shown in FIG. 4 is a data processing unit for each in-process in-process product number, loading set number, current in-process process, process sequence data, etc. Progress of each truck calculated from the data, work in progress in each process,
The storage device (I) stores the device check information and the processing conditions in the machine base of each process for each product number.

As described above, the central processing unit (B) searches for the representative anti-search request from each terminal (A) by the product number and the anti-number,
Set counter number of the representative counter, current work in process, process sequence,
Recognize in-process check information, processing conditions, etc. Then, the data such as the set counter number of the representative counter, the number of loaded counters, the device check information, and the processing conditions are transmitted to the terminal device that has made the search request.

In addition, in response to the information processing request from each terminal that processing of the representative counter in the process is completed, the data processing unit (B1) recognizes the collective counter number based on the representative counter product number and counter number, and Update the device check information for all the units forming the.

c. Description of Process Management Unit The process management unit (B2) shown in FIG. 5 receives the input of the information of the set conflict by the worker and sends the information to the data processing unit (B1). Further, it receives from the data processing unit (B1) information on the progress of each trolley and the status of work in progress in each process, and displays the information.

The input of the superposition reaction information is performed by the worker performing the following work in the preparation process. That is, when registering a set of pieces, the worker inputs the number of pieces of set into the input device (K), causes the external input device (N) to read the card of the piece of material to be registered, and information for each piece (part number, No.) and the representative cards are not all the cards, the counter number of the representative counter is input to the input device (K).

In addition, when changing the set anti-number, the operator makes the external item input device (N) read the item card to be changed, input the information of the item to be changed, and input the number of the new set item from the input device (K). The erasure of the set anti-group is performed by having the external input device (N) read the representative card of the set anti-group to be deleted by the worker, and inputting the information of the set anti-group to be deleted.
It is done by inputting the confirmation of deletion from (K).

In this way, all the information about the set antialiasing input to the process control unit (B2) is transmitted to the data processing unit (B1), and as the corresponding data between the individual antigression and the set antialiasing in the data processing unit (B1). Remembered.

Also, when it is necessary to search for fabric in the process, 1
Instead of looking for the information written on the attached card for each counter, the data processing unit (B1) within the data processing unit (B1) that can be recognized by the operator through the process control unit (B2) of the central processing unit (B) Based on the registered set anti-number, it suffices to search for the dolly on which the number tag is posted, and the anti-object can be searched efficiently.

〔The invention's effect〕

As described in detail above, according to the first aspect of the method of the present invention, the correspondence between individual cards and representative cards and the correspondence between representative cards and collective numbers are registered in advance in the central processing unit. Therefore, when searching for a requested work piece, it is possible to easily obtain the corresponding assembly number from the individual information of the work piece, and when there are many work pieces. However, the target workpiece can be easily found by searching the cart displaying the obtained assembly number.

Further, according to the second invention, in addition to the effect of the first invention, it is possible to prevent erroneous processing when the order is wrong by confirming the process order of the workpiece before processing,
As a result, quality accidents are drastically reduced, and productivity can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a process control system for carrying out the method of the present invention, FIG. 2 is a block diagram showing the flow of collective reaction before and after a batch process, and FIG. 3 is a terminal. FIG. 4 is a block diagram showing the configuration of the machine, FIG. 4 is a block diagram showing the configuration of the data processing unit of the central processing unit, and FIG. 5 is a block diagram showing the configuration of the process management unit. (A ₁ ) to (A ₂₀ ) ... terminal, (B) ... central processing unit, (C) ... local area network, (D) ... input device such as keyboard, (E) ... display device such as display, ( F) ... Control processing device, device such as memory and communication interface, (G) ... External input device such as card reader, (H) ... Control processing device, (I) ... Storage device such as memory, (J) ... Communication Interface, (K) ... input device such as keyboard, (L) ... display device such as display, (M) ... device such as control processing device, memory, communication interface, etc. (N) ... external input device,

Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location D06C 29/00 Z D06H 3/00

Claims (2)

[Claims] 1. In a processing process in which continuous processing and batch processing coexist, a set of a plurality of workpieces is regarded as one aggregate, and a card having individual information of the workpieces is provided for each workpiece. In addition to providing one or more cards selected from one group as a representative card of the group,
Correspondence between individual cards and representative cards is registered in advance in the central processing unit, and the terminal installed in each step reads information only from the representative card and links the read information with the terminal. A process management method for managing the progress of each process, the progress of each product, etc. by processing by the central processing unit, and carrying and carrying one or a plurality of the above-mentioned assemblage on a single trolley And displaying the collective number corresponding to the representative card on the dolly, and registering the corresponding relationship between the representative card and the collective number in the central processing unit. 2. In the present process, the central processing unit recognizes the work completion of the previous process based on the information read from the representative card via the terminal device, displays the result on the terminal device, and In the case, the work of the present process is stopped, The process control method according to claim 1.