JPH0577144A - Work indicating device - Google Patents

Abstract

PURPOSE:To indicate an optimum working device to work subsequently in the manufacturing process of products. CONSTITUTION:This work indicating device is formed of a computer 20 for computing each work termination scheduled time on production devices 24-26, a storage means 23 for memorizing the termination scheduled time, and a terminal 21 for putting the order of priority starting from the device of the earlier termination scheduled time so as to output indication data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work instructing device, and more particularly to a device for instructing which device to use or which product to manufacture when performing work in a product manufacturing process.

[0002]

2. Description of the Related Art Conventionally, when a product is manufactured by a manufacturing device, when a product is processed in a certain process, which of a plurality of workable devices is to be used for work is determined by the experience of a worker. Was the Lord. Further, when all of the workable values are in operation, when determining the manufacturing apparatus to work on the specific product next, as shown in FIG. 3, ... 5 were instructed at the same level regardless of the device state. Therefore, the operator actually decides by which device the product to be started next is to be worked in consideration of the product condition, the device condition, the work end time, and the like.

Further, when manufacturing a product with an apparatus, if there is a standby apparatus, the method of selecting the product to be worked next by the apparatus is mainly judged by the experience of the operator. Further, when there are a plurality of products being worked on in the previous process (products to be worked on by the device in the next process), all the products 11, 12, ... 15 are at the same level with respect to the device 1 as shown in FIG. I was instructing. Therefore, when deciding the product to be worked next by the device 1 which is actually on standby, the worker has made a decision while considering the state of the device, the progress of production and the like.

[0004]

According to the above-mentioned conventional judgment method based on the experience of the operator, it is difficult for the expert to make a decision. Moreover, since it takes a long time to make a judgment and a quantitative judgment cannot be made, errors are likely to occur. Further, when the judgment is wrong, it is necessary to re-prepare the work, so that there is a problem that the work efficiency is lowered. Further, if the decision is made in consideration of the delay with respect to the plan, there is a problem that the lead time of the product is extended because the decision requires more time.

An object of the present invention is to provide a work instruction device which solves the above-mentioned problems, prevents work mistakes, and prevents work efficiency from decreasing.

[0006]

The structure of the present invention stores and stores means for calculating a scheduled work end time in a work instruction device for instructing which manufacturing device to use when performing work in a product manufacturing process. It is characterized by comprising means and means for preferentially instructing as a workable device from the device whose calculated scheduled work end time is earlier.

In the present invention, when there is a standby manufacturing apparatus in the product manufacturing apparatus, the product used in this apparatus is stored in the next step, and the specification / state of the manufacturing apparatus, the working condition of the product, and the product are stored. Storage means for storing the production plan and the work progress thereof, and means for judging the work progress delay on the basis of the conditions of the storage means and instructing the product to be worked next from the one with the longest work progress delay. You can also

[0008]

1 is a flow chart showing a flow of a working apparatus according to an embodiment of the present invention, and FIG. 2 is a block diagram of the embodiment of FIG. In FIG. 2, the work instruction apparatus of the present embodiment includes a computer 20, terminals 21, 22, a storage unit 23, and production apparatuses 24, 25, 26, ....

The computer 20 includes communication means 31, 32,
33, ... Connected to the production devices 24, 25, 26,
Always receive the work start and work end signals for each minimum work unit. The working time of the minimum work unit is calculated from the time when these signals are received, and this is multiplied by the number of remaining work units to calculate the scheduled work end time of the working lot for each device and store it in the storage means 23.

Next, the instruction procedure when a work-in-process occurs will be described with reference to the flow chart of FIG. In step S1,
When a work-in-progress product is generated, the worker inputs the product name to the terminal 21 in order to determine which device should work the product.
Enter more. Then, in step S2, the computer 20
If there is a device that is ready for work and is on standby, that is designated as the work device for the product as in step S6.

However, if there is no workable device on standby, the scheduled end time of the previous workable device stored in the storage means 23 is read in step S3, and step S3 is executed.
In step S5, the items are sorted in ascending order of time, and the items are output to the terminal 21 in step S5 to instruct the operator.

FIG. 3 is a flow chart showing the operating condition of the work instruction apparatus according to another embodiment of the present invention, and FIG. 4 is a block diagram of FIG. In FIG. 4, this embodiment uses the production devices 24, 2
Storage means 41, 42, 43 are provided for the respective units 5, 26, .... Each of the production devices 24, 25, 26, ... Measures the work time of the minimum work unit, multiplies this time by the number of remaining work units to calculate the scheduled work end time of the lot, and the storage means 41, 42. , 43, ...

Next, the instruction procedure when a work-in-progress occurs will be described with reference to the flow chart of FIG. First Step S
In item 11, when a work-in-progress product is generated, a worker inputs a product name from the terminal 21 in order to determine which device should work the product. Then, in step S12, the computer 20 determines whether or not there is a device that is ready for work and is on standby, and if there is, it is designated as the product work device as in step S16.

However, if there is no workable device on standby, the computer 20 at step S13 uses the communication means 31, as the scheduled work end time stored in the storage means 41, 42, 43 ,. Are collected through 32, 33, ..., Sorted in ascending order of time in step S14, output to the terminal 21 in step S15, and give instructions to the worker.

As described above, the work instruction apparatus of this embodiment has a means for calculating the scheduled work end time and a means for storing the time when there is no standby device satisfying the work condition of the product in the work-in-process, and the time is earlier. The device can be designated as a workable device preferentially.

As described above, according to the present invention, when determining a device for working a specific product in a process without a standby device, the scheduled work end time is calculated, and the work is finished in order from the earliest scheduled end time. Since the device is instructed, the worker can perform pre-preparation for the next product work on the instructed device with high priority in advance, so that it is possible to prevent the work efficiency from being lowered and to reduce the work efficiency. There are few mistakes because the judgment is made quantitatively, and it takes about 30 seconds to select the working device, which was conventionally judged by a skilled person in about 10 minutes.

FIG. 5 is a flow chart for explaining an embodiment of the present invention, and FIG. 6 is a block diagram of this embodiment. In FIG. 6, the computer 20 receives the production plan, the specifications of the apparatus, and the working conditions of the product within a certain period, which are input from the terminal 21 connected by the communication unit 34, and stores them in the storage unit 23. Further, the jigs and tools currently mounted in the manufacturing apparatuses 24, 25, 26, ... Connected by the communication means 31, 32, 33 ,.

Next, the instruction procedure of the product to be worked next when the device 24 is on standby will be described with reference to the flowchart of FIG. In step S21, when the standby device 24 is generated, the worker designates the device 24 as the terminal 22 connected to the computer 20 by the communication means 35.

Next, in step S22, the computer 20
Determines whether there is a product in process or a product being processed in the previous process that can be processed by the device 24 in the next process based on the specifications of the device 24 and the working conditions of the product. If there is no workable product, the terminal 22 is notified in step S23.

If there are multiple workable products,
In step S24, it is determined whether or not work is possible with the jigs and tools currently mounted on the device 24 as they are (preparation before work is unnecessary). If it is possible to work here, step S2
At 6, it is determined whether or not the product is behind the plan in terms of production performance. At this time, if there is a product being worked on by the devices 25, 26, ... Having the same specifications as the device 24,
In the near future, it is sufficiently predicted that it will be added to the work record, so in addition to the work record as a correction value, the progress delay is determined by the ratio of the (actual result + correction value) to the plan.

The products judged to be delayed are the first
Even if it is not prioritized and the progress is not judged to be delayed, in order to prioritize work efficiency, a product that does not require preparation before work and can work in the current state of the apparatus is designated as the second priority. Further, even for the product judged to be unable to work with the jigs and tools currently attached to the apparatus in step S24, the progress delay with respect to the plan is calculated in step S25, and the product judged to be delayed is the third product. Products that are not prioritized or determined are displayed on the work instruction terminal 22 as fourth priority.

After determining the priorities as described above, by instructing the product to be worked next in the currently waiting device, the condition of the product, the specification / state of the device, and the progress of the production plan can be determined. It is possible to give instructions that are considered in multiple ways.

FIG. 7 is a flow chart for explaining the fourth embodiment of the present invention. First, in step S31, when the standby device 25 occurs, the operator designates the device 25 as the terminal 22. Next, in step S32, the computer 20 determines whether or not there is a product that is in the process of being processed or a product that is being processed in the previous process that can be processed by the device 25 in the next process. Judge according to the conditions.

If there is no workable product, the terminal 22 is notified in step S33. If there are a plurality of products, the product whose work record is behind the production plan is designated as the first priority in step S34.

Next, in step S35, although there is no delay with respect to the plan, it is judged whether or not it is possible to work with the jigs and tools currently installed in the apparatus because preparations before the work are unnecessary, and a workable product is selected. Instruct as second priority. In addition, in step S36, a product that has no delay with respect to the plan and requires preparation is designated as a third priority product having a long stagnation day.

According to the method described above, it is possible to give an instruction for quantitatively determining the delay with respect to the plan and to shorten the time for searching the product.

[0027]

As described above, according to the present invention, when determining a device for working a specific product that has been processed in a process without a standby device, an operator selects a device having a high priority from the specified device. Since the work for the next product can be preliminarily prepared in advance, it is possible to prevent a decrease in work efficiency.Because a quantitative judgment is made, there are few mistakes, and the work that the skilled worker took time to make a judgment. The equipment can be selected instantly, and this work instruction method can be applied to all steps of the product manufacturing process, and this work instruction method can improve productivity, resulting in product cost reduction. It has the effects of downtime and lead time reduction.

Further, in the present invention, when designating a product to be worked next in the standby device, it is determined in consideration of the production plan, work record, device status / specification, and product working condition. Workers no longer need to consider them,
In addition, since quantitative judgment is performed, it is possible to easily carry out production according to the plan, and it becomes possible to instantaneously select a product, which has been time-consuming for a skilled worker to judge.

[Brief description of drawings]

FIG. 1 is a flowchart showing an operation of a work instruction device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing the work instruction device of FIG.

FIG. 3 is a flowchart showing an operation of a work instruction device according to another embodiment of the present invention.

FIG. 4 is a block diagram showing the work instruction device of FIG.

FIG. 5 is a flowchart illustrating a third embodiment of the present invention.

6 is a block diagram showing the work instruction device of FIG.

FIG. 7 is a flowchart illustrating a fourth embodiment of the present invention.

FIG. 8 is a block diagram of a conventional work instruction device.

FIG. 9 is a block diagram of another conventional work instruction apparatus.

[Explanation of symbols]

 1 to 5, 24 to 26 (manufacturing) device 10, 11, ... 15 product 20 computer 21, 22 terminal 23, 41 to 43 storage means 34, 35 computer terminal communication means S1 to S36 processing steps

Claims (2)

[Claims] 1. A work instruction device for instructing which manufacturing device to use when performing work in a product manufacturing process, means for calculating and storing a scheduled work end time, and the calculated work end schedule. A work instructing device, comprising means for preferentially instructing as a workable device from the device having an earlier time. 2. When there is a standby manufacturing apparatus in the product manufacturing apparatus, the product used in this apparatus is stored in the next step, and the specification / state of the manufacturing apparatus, the working condition of the product, and the production of the product are stored. It has a storage means for storing the plan and its work progress, and means for judging the work progress delay on the basis of the conditions of this storage means, and indicating a product to be worked next from the one with the longest work progress delay. Characterized work instruction device.