JP2003140722A - Method for posting working staff - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an economical and efficient method for posting working staff without adjusting the amount of production. SOLUTION: In this method for posting working staff corresponding to the workload of each working process in manufacturing products through a plurality of operation processes according to a production plan, the workload in each operation process is simulated from the production plan, and whether the workload in each operation process can be carried out by the working staff preliminarily set in each operation process is simulated. When it is judged that the workload in a first working process 16 among those working processes cannot be carried out from the simulation, the working staff in a second working process 14 whose workload is judged to be realizable among those working processes are reduced, and the reduced working staff are added to the first working process 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for arranging work personnel in each work process when a predetermined work staff operates a product manufacturing factory having a plurality of work processes.

[0002]

2. Description of the Related Art Conventionally, for example, in a steel plate mill, which is a work site having a plurality of work steps, a plate smelting line (a smelting site) has a predetermined number of workers. Each work process on the transfer line
The operation is carried out by arranging each of them in a step of removing a flaw generated on the surface of the plank, a step of cutting the plank, etc.). But,
The amount of work (work) in each work process is, for example,
It is not efficient to allocate the number of workers to each work process according to the work load at the peak work time because it is easy to change depending on the quality etc.) and each work process does not always have a constant work load. It was Therefore, when the work load in a work process cannot be processed by only the work work force engaged in a work process, the work load of another work process in which the work load of the work process is sufficiently processed. With the support, the work capacity of the work process was increased and the work was processed.

[0003]

However, the above-mentioned method of arranging the worker has the following problems. When it is found that the work load of a work process cannot be processed only by the work staff engaged in the work, when the work staff engaged in the work of another work process is supported, the work load of which work process It is not possible to easily judge whether or not is processed sufficiently and which worker can support.
Also, I was instructed just before to support other work processes,
When the work is performed, there is a possibility that the worker does not fully understand the work content, and for example, there is a possibility that a work error in which the dimensions are different from those of the product to be manufactured is caused.

[0004] Then, if the work amount becomes unprocessable amount and the support of the work personnel engaged in the work of other work process is received, it is possible to cope with the short-term work, but for example, For long-term work or work in which each work process is continuous (chained), sufficient measures cannot be taken, work efficiency of equipment may be reduced, and product manufacturing may not be in time for delivery. . Furthermore, it is possible to adjust the production amount of the product by lowering the work amount of each work process and process the work amount in each work process, but in this case, in order to economically manufacture the product based on the ordered amount, It is necessary to review the production plan created in 1., for example, there is a possibility that the production cost will rise and the delivery date cannot be met, so there may be a disadvantage during production. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an economical and efficient method for allocating work personnel without adjusting the production amount.

[0005]

According to the present invention, there is provided a method for arranging work personnel according to the above-mentioned object. According to a production plan, when a product is manufactured through a plurality of work steps, the work is performed according to the work amount of each work step. In the method of allocating workers, the work amount in each work process is simulated from the production plan, and whether the work amount of each work process can be processed by the work personnel set in advance for each work process is simulated. If it is determined by this simulation that the work amount in the first work process of the plurality of work processes cannot be processed, the second work process of the plurality of work processes that is determined to be able to process the work amount is performed. The work staff of the work process is reduced, and the reduced work staff is added to the first work process. In this way, since the work amount in each work process and the work personnel set in advance in each work process are simulated, whether or not the work amount can be processed is calculated. It is possible to easily determine whether the work staff assigned to the process is appropriate.

Here, in the method for arranging work personnel according to the present invention, the second work process includes a plurality of work processes.
It is preferable that the work process has the least amount of work. As a result, even if there is some variation in the work amount, each work process has sufficient work personnel to handle the work amount of each work process, so the work efficiency of the equipment of each work process is reduced. Can be suppressed. In the method of arranging the work personnel according to the present invention, the simulation of the work amount is the work amount over time, and the period for adding the work personnel reduced in the second work process to the first work process is set in advance. It is preferable that it is a time period when the work load cannot be processed by the work staff. As a result, it is sufficient to move the work personnel only during the time when the preset work personnel cannot process the work over time.
It is possible to efficiently allocate work personnel to each work process.

In the method of arranging work personnel according to the present invention, the work personnel of the second work process to be reduced are first
In addition to the above work process, the work staff of each work process is changed, and then a simulation is performed again as to whether each work amount of the first work process and the second work process can be processed by each work worker after the change. Is preferably performed. In this way, by moving the work staff of the work process with the surplus work staff to the work process with the shortage of work staff and performing simulation again, the work after the change assigned to each work process is performed. It is possible to easily judge whether or not the personnel is appropriate. In the method of arranging work personnel according to the present invention, the work amount means a product that has already arrived at its own process that is scheduled to perform work in each work process, and a product that is scheduled to newly arrive at its own process in the future. Is preferably a work amount required to process As a result, the amount of work in each work process can be surely grasped, so that it becomes possible to appropriately and efficiently arrange the work staff.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Next, referring to the attached drawings, an embodiment in which the present invention is embodied will be described to provide an understanding of the present invention. Here, FIG. 1 is an explanatory view of a method of arranging work personnel according to an embodiment of the present invention, FIG. 2 is an explanatory view of a plank factory to which the method of arranging work personnel is applied, and FIG. FIG. 6 is an explanatory diagram of a method of arranging work personnel for carrying out the above.

As shown in FIGS. 1 and 2, according to a method of arranging work personnel according to an embodiment of the present invention, a predetermined work personnel (for example, When manufacturing a product through a plurality of work processes included in the trimming line 11 in which about 5 to 50 people) are arranged, predetermined work personnel are allocated to each work process according to the work amount of each work process, This is a method of allocating each worker. The details will be described below.

As shown in FIG. 2, the plate mill 10 has a rolling mill 12 for rolling the manufactured slab (not shown).
And a shearing machine 13 for cutting the rolled sheet rolled by the rolling mill 12, and a trimming line 11 for performing various treatments on the thick plate treated by the shearing machine 13. This adjustment line 1
1 includes, for example, a gas cutting step 14 for cutting a rolled plate that cannot be cut by a shearing machine 13, a heat treatment step 15 for heating a thick plate, and a flaw removing step 16 for removing flaws generated on the surface of the thick plate.
A plurality of working steps are provided, such as a painting step 17 for painting the surface of the plank and a straightening step 18 for straightening the bent plank. The thick plate has a thickness of 4.5 to 90 m, for example.
m, the width is 900 to 5500 mm, and the length is about 3 to 30 m. Here, each work process of the adjusting line 11,
In addition, a sensor and a camera (not shown) for recognizing that the conveyed product has passed are installed in the conveying path connecting the rolling mill 12 and the shearing machine 13, respectively, and the conveyed product (object) at the present time.
It is configured to be able to detect in real time where the vehicle is passing.

As shown in FIG. 1, before arranging the predetermined work personnel of the finishing line 11 in each work process, first, from the scheduled order of the product, the delivery date of the product is protected and the product is economically manufactured. A production plan for manufacturing (for example, simultaneously manufacturing products having the same product type and steel type by molten steel or rolling) is created using a computer. From this production plan, the production amount of the product which is to be newly arrived at each work process (self process), that is, the planned production amount is determined for each work process. Next, link the detailed production capacity simulator that calculates the processing capacity of each work process with the planned production amount in each work process and the work amount in each work process required to process the intermediate product (current work in progress). Simulate with a factory simulator that operates by In addition, this intermediate product refers to each work process (own process) that is scheduled to perform work in each work process at the time of simulating whether the work amount can be processed by a preset work staff. Means a product that has already arrived. Therefore, even if it is an intermediate product in its own process, it becomes a new product in the next process located on the downstream side of its own process. In addition, this work amount is input to the computer together with the number of workers (workers who can exhibit 100% of the processing capacity with respect to the normal work amount) pre-allocated to each work process and the shipping schedule (delivery date) of the product. To be done.

Then, using the factory simulator,
Simulate the workload as described above,
A simulation is performed as to whether or not the work load of each work process can be processed by the work personnel set in advance for each work process. Thus, by predicting the processing capacity of each future work process, that is, the progress of work in progress from the current work in process and the contents of the order, it is possible to predict whether or not the work amount can be processed by this worker (work site). Operation plan). The detailed ability simulator and the factory simulator are activated by the above computer.

If there are a plurality of work processes having some relation between the number of workers and the work amount in each work process, and the worker can perform the work of the plurality of work processes, It is possible to obtain the maximum production efficiency without increasing the number of workers of a predetermined number by adjusting the processing capacity of each work process by moving workers between each work process to each other. The processing capacity of the worker in each work process is determined by, for example, past performance data, work content, etc. of each work process, and is not necessarily proportional to the number of workers. Therefore, in a certain work process, four workers can perform 100% of the processing capacity, three people can display 60% of the processing capacity, and two people can display the processing capacity of 30%. It is preferable to preset the processing capacity of the work staff in each work process.

According to the above-mentioned simulation, the work amount in, for example, the flaw removing step (first working step) 16 among the plurality of working steps exceeds the processing capacity of the working personnel engaged in the work of the flaw removing step 16, that is, When it is determined that the work can not be performed by the preset work personnel of the defect removal process 16, the work process having the least work load among the plurality of work processes determined to be able to handle the work load is, for example, the gas cutting process. (Second Work Process) The work staff of 14 is reduced, and the reduced work staff is added to the flaw removal process 16. In this way, the work staff of the gas cutting process 14 having the reduction symmetry is added to the flaw removing process 16 and the work staff of each work process is changed, and then the work of the flaw removing process 16 and the gas cutting process 14 is performed again. A simulation as to whether or not the amount can be processed by each changed work staff is performed by the above-mentioned factory simulator. In addition, this simulation
It is preferable to reduce the number of workers in the gas cutting step 14 one by one and perform re-simulation. As a result, it is possible to prevent an excessive reduction in the number of workers in the gas cutting step 14 and an excessive increase in the flaw removal step 16, so that it is not necessary to perform unnecessary re-simulation and workability is improved.

At this time, if the work amount of each work process falls within the processing capacity range of the work staff engaged in the work of each work process, the work site operation plan by the factory simulator is finished. On the other hand, if the work load exceeds the processing capacity of the work personnel in any of the work processes, even if the arrangement of the predetermined work personnel in the trimming line 11 is changed, the work of the predetermined work personnel held in the trimming line 11 is Since it can be understood that the quantity cannot be processed, the above-mentioned production plan can be reviewed and the work quantity can be adjusted so as to be within the processing capacity range of the work staff. However, in the case where an operating system that allows support for work personnel is adopted, such as shift work, it is preferable to ask for support from other work processes before or after. As a result, it is not necessary to review the production plan, so that it is possible to keep the delivery date without increasing the production cost, and it is possible to further suppress disadvantages during production. It should be noted that if it is understood in advance that the number of workers in each work process is excessive by simulation, it is of course possible to give workers a leave.

Next, a method of arranging work personnel according to another embodiment will be described with reference to FIG. This means that a plurality of workers who are engaged in the work of the gas cutting process 14, which is one of the plurality of work processes, are directly connected to a continuous operation for performing a short-term (partial) work of, for example, about 5 to 20 minutes. The crane work process, which is one of the work processes, is engaged. Here, the above-described factory simulator is a rolling scheduler (for example,
Current rolling progress, future rolling plans, etc.)
And the crane working process directly connected to the rolling mill 12 is used for the simulation. Therefore, the rolling scheduler is input to the above-mentioned computer together with the gas cutting work scheduler that sets the time transition for performing the gas cutting work of the gas cutting process 14 in the future. The position of the target material on which the crane work is performed in the crane work process is detected by the sensor, the camera, etc., and this information is sent to the computer one by one.

First, based on the information of the rolling scheduler, the amount of work in the crane work process and the estimated arrival time of the target material are obtained, and this work is input to the computer. On the other hand, the estimated arrival time of the target material is sent to the degassing work scheduler, and the amount of work of the gas work process and the number of work personnel engaged in the work at that time are input to the computer. Whether or not this work staff can process the work by simulating this work and predicting the in-process transition by a factory simulator that operates in conjunction with a detailed capacity simulator that calculates the processing capacity of each work process Do a simulation. At this time, if it is determined that the processing can be performed, the information is input to the degassing work scheduler. On the other hand, if it is determined that the process cannot be performed, the work staff engaged in the work of another work process performs the simulation by the factory simulator again. Then, based on the estimated arrival time of the target material and the information input to the degassing work scheduler, for example, the information of the work personnel who change the work, each worker has a mobile terminal (for example, a mobile phone, a pager (register (Trademark) etc. is used to instruct work change (movement). In addition, in order to improve the accuracy of this prediction,
It is preferable to perform the work as close as possible to the time for performing the work within a time range that is suitable for the work.

[0018]

[Embodiment] Applying the method for arranging work personnel according to the present invention,
The results of the test will be described. The first example uses the method of arranging the work personnel according to the above-described one embodiment, and the second example uses the method of arranging the work personnel according to the other embodiments described above. (First Example) Heat treatment process 1 having 6 working personnel in a refining line 11 in a steel plate mill 10
5. The results of predicting the transition of the amount of work in progress (processing capacity of each work process required based on the work amount of each work process and the processing capacity of the work staff) from 3 days after the flaw removal process 16 are shown in Table 1.
Shown in. In the heat treatment step 15 and the flaw removal step 16, the number of working workers is always set to 4 and 2, respectively. In addition, the workload simulation calculates the workload over time.

[0019]

[Table 1]

As shown in Table 1, each of the heat treatment step 15 and the flaw removal step 16 involving complicated physical distribution is 3 shifts (8
It is assumed that it is operating for 24 hours with hourly booth, second booth, and second booth. In Otsuban on the third day, one of the workers is on vacation, so the predetermined number of workers is five. In the heat treatment step 15, 100% of the processing capacity is exhibited by 4 workers and 60 by 3 workers in comparison with the normal work amount.
%, Two people can operate with a processing capacity of 30%. In addition, the processing capacity of 120% is demonstrated by five people.
On the other hand, in the defect removal process 16, 100% of the processing capacity is exerted by two workers against the normal work amount, and even one person can perform 60% of the processing capacity.
% Processing capacity shall be demonstrated. In addition, the processing capacity of 110% is exhibited by three people. Therefore, as a result of performing a simulation as to whether or not this work amount can be processed by this work person based on the work amount and the work person, the predicted work in progress, which is this predicted value, varies depending on the work amount and the work person. To do. Here, it is assumed that each worker is multi-skilled and can perform both the heat treatment process 15 and the flaw removal process 16.

First, in the heat treatment step 15, four workers are supposed to be engaged in the work on the third day's Koban. From this workman and the work load on this Koban, this worker has As a result of simulating whether or not the work amount can be processed, it can be seen that the estimated work in progress becomes 120% and the processing cannot be performed. Next, in Otoban, three workers are supposed to be engaged in work, but there is a decrease in the number of workers in Otoban, and there is an excess of 20% of forecast work in progress in Koban. It is 120% and it can be seen that it cannot be processed, and it can be understood that the forecast work in process cannot be within the processing capacity range of the worker up to No. This excess amount is processed as the amount of work in Koban on the 4th day is reduced, and after that, surplus of the processing capacity of Otsu No., No. 1 and No. 2 is generated.

On the other hand, in the flaw removing step 16, two workers are supposed to be engaged in the work on the third day's instep, and from this operating person and the work amount in this instep, this operating person As a result of performing a simulation as to whether or not this work amount can be processed, it can be seen that the predicted work in process becomes 70% and can be processed. After that, two workers are engaged in the work until the Koban on the fourth day, but the estimated work in process is within the processing capacity of the workers. However, in the defect removal process 16 in Otsuban on the 4th day, as a result of performing a simulation as to whether or not the workforce can process this work from two workers and the work load of this Otsuban, it is predicted. It can be seen that the work in process became 110%, the amount of work increased, and it could not be processed. However, this excess (10%) is resolved by the decrease in the work amount in No. 1 and the estimated work in process in No. 1 falls within the processing capacity range of the worker.

As described above, regarding the number of workers in the heat treatment step 15, it is shown that the amount of work exceeds the processing capacity of the worker by the predicted work in progress exceeding 100% on the third day. In addition, 100% of forecast work in progress on the 4th day
It becomes the following, and the surplus of the processing capacity of the worker for the work amount occurs. On the other hand, in the number of workers in the defect removal process 16, the estimated work in progress was 10 from the third day to the fourth day.
It becomes 0% or less, and a surplus of the processing capacity of the work personnel with respect to the work amount occurs, and it can be seen that the forecast work in progress exceeds 100% and the work amount exceeds the processing capacity of the work personnel in Otsuban. That is, as a result of predicting the estimated in-process, if the transition of the in-process amount is as shown in Table 1 in 3 shifts on the third day, the estimated in-process is 10
If it exceeds 0%, the processing efficiency of the work amount is remarkably lowered even if there are a normal number of workers, and a delivery delay occurs.
Therefore, there is a surplus in processing capacity.
The number of the working personnel of the heat treatment process 15 is reduced, the reduced working personnel are engaged in the work of the heat treatment step 15, and the number of the work personnel of the heat treatment step 15 on the 4th day is reduced. Engage in the work and perform the simulation again. The results of this simulation are shown in Table 2.

[0024]

[Table 2]

As shown in Table 2, the estimated work in progress does not exceed 100% by moving the worker and adjusting the processing capacity of the worker without adjusting the workload of the heat treatment step 15 and the flaw removing step 16. It became possible to operate. Based on the result of this simulation, the time when the work personnel reduced in the flaw removal process 16 on the third day is added to the heat treatment process 15 is a time zone when the work amount cannot be processed by the preset work personnel, that is, the third day. On the other hand, the time when the worker reduced in the heat treatment step 15 on the 4th day is added to the flaw removing step 16 is the time zone when the workload cannot be processed by the preset worker, that is, the Otsuban on the 4th day. .

(Second Embodiment) A worker who is constantly engaged in the work of the gas cutting process 14, which is one of a plurality of work processes, performs a short-term work of, for example, about 5 to 20 minutes. The crane work process, which is one of the work processes directly connected to continuous operation, is engaged. Since this crane working process is a work directly connected to the rolling mill 12 that is continuously operating, the rolling mill 12 will be stopped unless a worker crews the crane in a timely manner to perform the work. However, the timing at which the target material (rolled plate) is passed may be unscheduled on the order of several hours due to various other personnel, so the worker can not grasp the timing to board the crane, and the crane work process , A work loss occurs in both the gas working process 14. In order to prevent this, the estimated arrival time of the target material is predicted in real time (for example, every 10 minutes) by the detailed physical distribution prediction by the factory simulator, and the moving time of the worker is determined. in this way,
By simulating the workload over time, by instructing each worker using a mobile terminal (for example, mobile phone, pager, etc.) to change work (moving) based on the estimated arrival time, Crane work process, gas cutting process 1
It becomes possible to efficiently carry out both of the tasks of No. 4 above.

Although the present invention has been described with reference to the exemplary embodiments, the present invention is not limited to the configurations described in the above-described exemplary embodiments, and is described in the scope of claims. Other embodiments and modifications that are conceivable within the scope of the matters mentioned above are also included. For example, in the above-described embodiment, as a work site having a plurality of work processes, a refinement line in a steel plate factory in a steel mill is used,
The case where the operation is performed by a predetermined worker has been described. However, if the operation of a product manufacturing factory equipped with a plurality of working steps is performed by predetermined working personnel,
The present invention can be applied to other work sites, for example, the arrangement of work personnel in factories, offices, and the like.

Further, in the above-mentioned embodiment, the processing capacity of the work in each work process is set not by the capacity of the work staff but by the number of the work staff.
However, it is also possible to preset the processing capacity of each work staff in each work process and simulate which work staff should be engaged in the work of each work process for efficient processing. As a result, further work efficiency in each work process can be improved. Further, in the above-described embodiment, it is assumed that the worker can carry out the work of the plurality of work steps, and the worker is arranged. At this time, the worker does not necessarily have to carry out all the work of a plurality of work processes, and for example, it is only necessary to be able to carry out the work of two work processes. In this case, information of the work workers who can engage in each work process is provided. It is preferable to input it into the computer in advance.

[0029]

According to the method for arranging work personnel according to claims 1 to 5, a simulation is made as to whether the work amount in each work step and the work person preset in each work step can process the work amount. Therefore, it is possible to easily determine whether the work staff assigned to each work process is appropriate for the work amount of each work process. In this way, the work amount of each work process and the necessary work personnel for this work amount are known in advance, and accordingly, the support system for each work process is supported, and the work staff supporting the work process and other work workers of the work process are supported. Please understand in advance. Therefore, since the work staff engaged in the work of each work process can grasp the work content and the work amount to be carried out by themselves, the possibility of work mistakes can be reduced and the work efficiency can be improved. Further, since the work staff can be efficiently arranged in each work process without increasing the limited number of predetermined work staff, it is economical because the work efficiency of the equipment in each work process can be suppressed.

In particular, in the method for arranging work personnel according to the second aspect, each work process has sufficient work personnel to handle the work amount of each work process even if the work amount slightly varies. Moreover, it is economical because it is possible to suppress a decrease in the work efficiency of the equipment in each work process. In the method of arranging the work personnel according to claim 3, since it is sufficient to move the work personnel only during a time period when the preset work personnel cannot process the work over time, it is possible to efficiently allocate the work personnel to each work process. Can be placed in Therefore, it is possible to eliminate sudden movement of the work personnel from one work process to another, so it is only necessary to perform the work of the work process in which the work personnel are engaged until the time of movement. Efficiency can be reduced.

In the method of arranging the work personnel according to the fourth aspect, the work personnel in the work process in which the work personnel are redundant are moved to the work process in which the work personnel are insufficient, and the simulation is performed again. It becomes possible to easily determine whether or not the changed work staff assigned to each work process is appropriate. Therefore, without reviewing the production plan,
That is, the processing capacity of the work load of each work process is adjusted without adjusting the production amount, so that the reduction of the production amount can be suppressed and the delivery date can be strictly adhered to, which is economical. In the method of arranging the work personnel according to claim 5, the work amount in each work process can be surely grasped, and the work personnel can be arranged accurately and efficiently. It can be utilized.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a method of arranging work personnel according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a plank factory to which the method of arranging the work staff is applied.

FIG. 3 is an explanatory diagram of a method of arranging work personnel according to another embodiment of the present invention.

[Explanation of symbols]

10: Plate mill, 11: Refining line, 12: Rolling mill, 1
3: shearing machine, 14: gas cutting process (second working process),
15: heat treatment step, 16: flaw removal step (first working step), 17: coating step, 18: straightening step

Claims (5)

[Claims] 1. A method of allocating work personnel according to a work volume of each work process when manufacturing a product through a plurality of work processes according to a production plan, wherein each work from the production plan is performed. In addition to simulating the amount of work in a process, a simulation is performed as to whether the amount of work in each of the work processes can be processed by a worker preset in each of the work processes. When it is determined that the work load in the first work process cannot be processed, the work staff of the second work process of the plurality of work processes determined to be able to process the work work is reduced, and the reduced work staff is reduced. Is added to the first work step. 2. The method according to claim 1, wherein the second work process is a work process having the least amount of work among the plurality of work processes. Arrangement method. 3. The method for arranging work personnel according to claim 1 or 2, wherein the simulation of the work is the work over time, and the work personnel reduced in the second work process are the first work. The method for allocating work personnel, characterized in that the period added to the work process is a time zone in which the work amount cannot be processed by the preset work personnel. 4. The method of arranging the work personnel according to claim 1, wherein the second reduction target
After changing the work staff of each work process by adding the work staff of the work process of the first work process to the first work process, each work amount of the first work process and the second work process is changed again. A method of allocating work personnel, characterized by performing a simulation as to whether or not each work personnel can process. 5. The method for arranging work personnel according to any one of claims 1 to 4, wherein the work amount has already arrived at an own process scheduled to perform work in each work process. And a product that is expected to arrive at the process in the future, the amount of work required to process the product and the work staff allocation method.