JPH04188281A - Method and device for preparing layout - Google Patents

Abstract

PURPOSE:To reduce labor for preparing layout and to shorten time for the preparation by preparing a layout idea corresponding to a production plan based on production processes, producing devices, production forms, the structure of production areas and position relation conditions calculated based on inputted data. CONSTITUTION:A layout drawing data is prepared by describing the positions of various producing devices, conveying equipments and partitions, conveying paths and the partition of modules or the like into relevant positions on a layout drawing based on a prepared list data. On the other hand, numerical layout data such as a material handling distance, construction cost, equipment cost and productivity or the like obtained from the prepared layout drawing data are calculated, and plural layout idea data are prepared while pairing the layout drawing data and the numerical layout data. Then, the layout idea data having the maximum value of totalizing the evaluation exponents of respective items is selected as the optimum layout idea data. Thus, labor for preparing the layout is reduced and time for the preparation is shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method and apparatus for creating a layout of a production area.

[Conventional technology]

When planning the layout of a production line in a factory, determine the equipment required for the production line based on the production plan for the production line, and place the required equipment on a drawing representing the predetermined area of the production line. A layout diagram with a simulated layout is created, and the simulated layout diagram is evaluated, such as examining the workability and productivity of the production line represented in the created layout diagram. Then, the optimal layout diagram was determined by repeatedly creating such a layout diagram and evaluating the layout plan through trial and error.

[Problem B that the invention seeks to solve] However, as described above, the method of determining the optimal layout diagram through trial and error requires a great deal of effort and a long creation time, and it is also possible to There was a problem that the layout drawing might be determined.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a layout creation method and device that can reduce the labor and creation time when creating a layout diagram. .

[Means to solve the problem]

The layout creation method according to the present invention inputs data regarding a production plan in a production area, determines the production process and production equipment required for implementing the production plan based on the input data, and calculates the production process and production equipment required for implementing the production plan based on the input data. The production format required to implement the production plan is determined based on the input data, the structure of the production area required to implement the production plan is determined based on the input data, and the determined production process and production equipment are determined. The positional relationship conditions between the production devices are determined based on the interrelationship of the production devices and the arrangement conditions of the production devices, and the production plan is determined based on the structure and positional relationship conditions of the determined production processes, production devices, production formats and production areas. Create a layout plan, evaluate the created layout plan based on the cost required to implement the created layout plan and the production efficiency when implementing the layout plan, and calculate the evaluation results of the layout plan. The layout of the production area will be decided accordingly.

A layout creation device according to the present invention includes means for inputting data regarding a production plan in a production area, and means for determining production processes and production equipment required for implementing the production plan based on the input data. means for determining a production format required for implementing the production plan based on input data; means for determining a structure of a production area required for implementing the production plan based on the input data;
Means for determining positional relationship conditions between production devices based on the determined interrelationship of the production processes and production devices and placement conditions of the production devices, and the determined production process.

Means for creating a layout plan according to the production plan based on the structure and positional relationship conditions of the production equipment, production format and production area, and the costs required when implementing the created layout plan and implementing the layout plan. A means for evaluating the created layout plan based on the production efficiency in the case where the layout plan is evaluated is provided, and the layout of the production area is determined according to the evaluation result of the layout plan.

[Effect]

In the present invention, when data regarding a production plan in a production area is input, the production process and production equipment required for implementing the production plan are determined based on the input data, and the determined production process The positional relationship conditions between the production devices are determined based on the interrelationship of the production devices and the placement conditions of the production devices, and information on the necessary production processing devices and their approximate placement status is obtained. Further, based on the input data, the production format such as job shop, flow shop, etc. required for implementing the production plan is determined, and information on the production format adapted to the production plan is obtained. Information on the general structure of the production area adapted to the implementation of the production plan is obtained. Then, a layout plan corresponding to the production plan is created based on the obtained production process, production equipment, production format, production area structure, and positional relationship conditions. This makes it suitable for regional production planning. The created layout plan is evaluated based on the cost required if it is implemented and the productivity when it is implemented, so the optimal layout can be determined in terms of construction cost and productivity.

〔Example〕

The present invention will be specifically described below based on drawings showing embodiments thereof. FIG. 1 is a block diagram showing the functional configuration of a layout creation device according to the present invention.

Circular 1 is an input unit consisting of an input device such as a keyboard that manually inputs various data. From input unit 1, management data such as production types and production quantities, air-conditioned space 1 building structure, etc. Data regarding the structure of the location for which the layout is to be created are input. Data input from the input unit 1 is provided to a CPU 2 that performs various arithmetic processing. Further, the arithmetic processing results of the CPII 2 are given to an output section 3 composed of an output device such as a CRT and a printer, so that they can be outputted from the output section 3.

The CPU 2 includes a production planning section 21. Layout pattern creation section 22. Building condition creation department 23. Equipment plan creation section 241 combination pattern creation section 25. It is composed of a layout plan creation section 26 and a layout plan evaluation section 27. The data input from the input section 1 is sent to the production planning section 21. The information is provided to the layout pattern creation section 22 and the building condition creation section 23, respectively.

Based on the input data, the production planning section 21 compiles a process flowchart showing the processing order of production-related processes, machine time showing the operating time of equipment in each process, and the type of production equipment required for each process. a device list, drawing data showing the dimensions of each device shown in the device list,
The equipment planning section 2 creates production plan data such as the transportation method of the production target between each device, and transfers the created production plan data to the equipment planning section 2.
It is designed to be given to 4. The layout pattern creation unit 22 creates layout pattern data indicating a production method such as a flow shop or job shop based on the input data, and provides the created layout pattern data to the layout plan creation unit 26. There is. Based on the input data, the building condition creation section 23 creates building condition data such as the air conditioning conditions of the production area and the structure of each floor of the production area, and provides the created building condition data to the layout plan creation section 26. It has become.

In addition, the equipment planning unit 24 creates equipment planning data such as the number and type of production equipment required and specifications based on the data given from the production planning unit 21, and uses the created equipment planning data. Combination pattern creation section 25
It is designed to be given to

In the combination pattern creation section 25, the equipment plan creation section 2
Based on the data given from 4, perform activity analysis to determine the relationship between each device and correlation analysis to determine the relationship between each process, and consider equipment arrangement conditions such as work space and device spacing. and create combination pattern data representing the positional relationship of each device, and send the created combination pattern data to the layout plan creation unit 26.
It is designed to be given to

In the layout plan creation section 26, the layout pattern creation section 22. Based on the data given by the building condition creation section 23 and the combination pattern creation section 25, layout drawing data indicating the layout plan and material handling distance obtained from this layout drawing data (the movement of the production object from its input to completion) are calculated. Layouts created by creating multiple types of layout plan data with - pairs of construction costs, equipment costs, and productivity (ratio of the production quantity of the production target to the number of workers required for the layout plan) The plan data is given to the layout plan evaluation section 27. The layout plan evaluation section 27 determines the optimal layout plan data by comparing and evaluating the plurality of layout plan data given from the layout plan creation section 26 with respect to each item of material handling distance, construction cost, equipment cost, and productivity. Then, the layout plan data is provided to the output section 3. The output section 3 is capable of outputting layout plan data given from the layout plan evaluation section 27.

Next, a layout creation method performed using the layout creation device configured as described above will be described. FIG. 2 is a flowchart showing the main routine of the layout creation procedure performed using the layout creation device, and FIG. 3 is a flowchart showing the production plan creation subroutine.

First, each data of the product type 2 production quantity, air conditioning space, and building structure of the production line for which the layout is to be created is manually entered from the input unit 1 (step 1).

When the data is entered manually from the input section 1, the process proceeds to a production plan creation subroutine, where the production needle/image data as described above is created (step 2).

In the production plan creation subroutine, first, a process flowchart showing the processing order of production-related processes is created based on the data given from the input unit 1 (step 21).
. Next, the machine time representing the operating time of the device in each process in the created process flowchart is determined (step 22). Then, create an equipment list that summarizes the types of production equipment required for each process (step 23), create drawing data showing the dimensions of each equipment shown in the equipment list (step 24), A transportation method for the production object is determined (step 25) and the process returns to the main routine. In this way, production plan data is obtained in the production plan creation subroutine.

When the production planning data is obtained in this way, the equipment planning creation subroutine is executed, and the equipment planning creation section 24 reads out the data on the throughput of each device from the throughput storage section of the data cache 4, and stores each of the read out data on the throughput of each device. Based on the processing capacity of the device, the production plan data, and the production quantity,
Create equipment planning data such as the number of devices, device types, and device specifications required for the production line (step 3).

When the equipment planning data is created in this way, a combination pattern creation subroutine is executed, and the combination pattern creation section 25 performs an activity analysis to determine the relationship between each device and a correlation analysis to determine the relationship between each process. By doing this, we determine the positional relationship between processes and between machines that has high transfer efficiency between processes and between machines, and further determine the arrangement of machines such as predetermined work space conditions, machine spacing conditions, and placement conditions unique to each machine. The conditions are examined, and the obtained positional relationships and the examination of the arrangement conditions are combined to create a plurality of combination pattern data representing the rough positional relationships of each device (step 4).

When the combination pattern data is created, a layout pattern creation subroutine is executed, and the layout pattern creation section 22 generates data indicating a production method such as a flow shop or a job shop based on the data input from the human resources section 1. Layout pattern data is created (step 5).

Further, a building condition creation subroutine is executed, and the building condition creation section 23 creates building condition data such as data representing the air conditioning conditions of the production area and data representing the structure of each floor of the production area (step 6).

When the combination pattern data, layout pattern data, and building condition data are created in this way, a layout plan creation subroutine is executed to create layout drawing data indicating the layout plan. In the layout plan creation subroutine, the standard shapes of equipment or structures to be written in the layout drawings of various production equipment, transportation equipment, etc. are registered in advance, and the standard shapes of the equipment or structures to be written in the layout drawings of various production equipment, transportation equipment, etc. , create list data showing the rough block configuration of the layout showing various production equipment, transport equipment, partition positions, transport routes, module divisions, etc., and based on the created list data, The location of various production equipment, conveyance equipment, and partitions at the appropriate locations.

Layout drawing data is created by writing the divisions of one module on the conveyance path, and the material handling distance (distance traveled from the input of the production object to completion), construction cost, and equipment obtained from the created layout drawing data. Perform calculations to calculate layout numerical data such as cost and productivity (ratio between production quantity of production target and number of workers required for layout plan), and combine the layout drawing data and layout numerical data as a set. Create multiple layout plan data. (Step 7).

When a plurality of layout plan data are created in this way, a layout plan evaluation subroutine is executed. In the layout plan evaluation section 27, an evaluation function for determining an evaluation index is determined in advance in accordance with the numerical data of each item of the material handling distance, construction cost, equipment cost, and productivity. In this evaluation function, the shorter the material handling distance, the higher the evaluation index, the lower the construction cost and equipment cost, the higher the evaluation index, and the higher the production quantity per worker, the higher the productivity. The evaluation index for each item is determined for each of the plurality of layout plan data created by the layout plan creation section 26. Then, the layout plan data with the highest total value of the evaluation index of each item is selected as the optimal layout plan data. However, a predetermined lower limit value is predetermined for the total value of the evaluation index, and only when the total value of the evaluation index of the selected layout creation devices is greater than or equal to the lower limit value, the selected layout plan data is determined as the optimal layout plan data (step 8).

Next, in the layout plan evaluation subroutine, it is determined whether or not the optimal layout plan data has been determined (Step 9). If the optimal layout plan data has not been determined, the combination pattern data, layout pattern data, and building condition data Change the conditions for determining (step 10) and return to step 4. Then, the process from step 4 onwards is performed again to create new layout plan data.

On the other hand, when the optimal layout plan data is determined in step 9, the layout plan data (layout diagram, layout numerical data) is outputted from the output unit 3 (step 10). Note that the layout diagram is as shown in FIG. Figure 4 shows various production equipment 6.6..., partitions 7.7... and beams 8 in the production area 5.
, 8, etc. and structures are arranged.

When the layout plan data is output, the worker performs a detailed review of the output layout plan data (step 11) and decides on the layout (step 12).
.

By the method described above, a layout according to the production plan can be created.

〔Effect of the invention〕

As detailed above, the layout creation method and device according to the present invention automatically creates a layout plan based on the input data when data related to a production plan is input, and creates an optimal layout according to the production plan. Since the layout can be determined, the present invention has excellent effects such as reducing the labor and creation time when creating a layout.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the functional configuration of a layout creation device according to the present invention, FIG. 2 is a flowchart showing a main routine of a layout creation method performed using the layout creation device, and FIG. 3 is a production plan creation subroutine. The flowchart and FIG. 4 are layout diagrams in a plan view of the production area. 1... Input section 21... Production plan creation section 22
... Layout pattern creation section 23... Building condition creation section 24... Equipment plan creation section 25... Combination pattern creation section 26... Layout plan creation section 27... Layout plan evaluation section Inside, the same reference numerals indicate the same or equivalent parts. Figure 2 Figure 3

Claims (2)

[Claims] (1) In a layout creation method for creating a layout of a production area in which production equipment is to be arranged, data regarding a production plan in the production area is input, and based on the input data, data necessary for implementing the production plan is input. Determine the production process and production equipment, determine the production format required to implement the production plan based on the input data, and determine the production area required to implement the production plan based on the input data. seek structure,
Based on the determined interrelationships between the production processes and production equipment and the layout conditions of the production equipment, the positional relationship conditions between the production equipment are determined, and the determined production processes, production equipment, production format, structure of the production area, and the relationship between the production equipment are determined. A layout plan is created in accordance with the production plan based on the positional relationship conditions of 1. A layout creation method, comprising: evaluating a layout plan, and determining the layout of a production area according to the evaluation result of the layout plan. (2) A layout creation device that creates a layout of a production area in which production equipment is arranged, including means for inputting data regarding a production plan in the production area, and information necessary for implementing the production plan based on the input data. means for determining the production process and production equipment required to implement the production plan based on the input data; means for determining the production format required for implementing the production plan based on the input data; means for determining the structure of the production area that is determined to be the same; a means for determining the positional relationship conditions between the production devices based on the determined interrelationship of the production processes and production devices and the arrangement conditions of the production devices; and the determined production process. , a means for creating a layout plan according to the production plan based on the production equipment, production format, structure of the production area, and positional relationship conditions between the production equipment, and costs and expenses required when implementing the created layout plan. A layout creation device characterized by comprising: means for evaluating a created layout plan based on productivity when implementing the layout plan, and determining the layout of a production area according to the evaluation result of the layout plan. .