JP2006039712A - Manufacturing process chart display system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system easily manufacturable by using a PC and the like for displaying a manufacturing process of a product in a chart. <P>SOLUTION: For each of components constituting the product, a component procurement line matching a procurement period of the component is expressed in a graphic entity, and to the component procurement line, a component shift line matching a shift period of the component is connected to be expressed in a graphic entity with different attributes. For each of a plurality of manufacturing processes for assembling/machining the multiple components for manufacturing the product, a process line matching a process period including a component waiting period is expressed in a graphic entity, and to the process line, a product shift line matching a shift period of a partial product is connected to be expressed in a graphic entity with different attributes. Periodic association between the indicated end point for each component and the manufacturing process requiring the component is established to be expressed by a graphic entity, and a period required for manufacturing the product is indicated in this manufacturing process display system. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  In the present invention, a plurality of manufacturing processes for manufacturing a product using a large number of purchased parts, materials, software elements, and the like (hereinafter referred to as parts) are performed in one place or in a remote place. In a production method for products that exist in a mixed location at a certain business office, including the entire process from requesting the purchase of necessary parts, from the delivery of the parts, to the production of the product in each production process. The present invention relates to a production process diagram display system capable of grasping a production period and a method of using the production process diagram display system.

  Conventionally, when making an object, the process of making it is considered as a process, and the process is expressed by a line, connected in the order of making it, and expressed in the form shown in FIG. .

Japanese Patent Laid-Open No. 9-114889 has been known as a prior art.
JP-A-9-114889

  The prior art uses arrows to indicate the period and direction of the process and the connection destination. This is because about 30 years ago, the critical path method became popular, and the flow of various situations was represented by lines with arrows. The critical path method expresses the flow of changes in a state as a line with an arrow for each status element and the connected state of the lines. ). In terms of the production process diagram, this means finding a link line of the process that becomes a bottleneck in the process. Representing this production process with a diagram is very effective for grasping the process, and it still remains.

  Therefore, although it is a current problem, the form of creating the current product is increasing in the form of collaborating between distant offices or companies. Distant companies mean between companies in different countries. If it does so, the period which conveys an object between each process of a manufacturing process diagram is required. However, the conventional theory of production management (which is called the theory of work efficiency) is mainly about how to eliminate waste between processes, so the period of carrying goods there The idea of putting in does not come from anywhere. Also, the production process diagram usually does not include the period from purchase request (or order) to receipt of the necessary parts / materials. This is because the production process diagram is mainly about improving work efficiency, and there is no period of time during which other people work such as parts and materials to be purchased.

  The object of the present invention is to make it easy using an application such as a PC, to accurately grasp the production period of the product, to keep the inventory of parts, materials, etc. to the minimum necessary, and to produce the product as planned. The object is to provide a production process diagram display system which can be shipped.

In order to achieve the above object, the present invention is a system for displaying a production process diagram on the screen. As the production process diagram, for a large number of parts constituting a product (final product), for each part, At least parts and procurement lines corresponding to the procurement period of each part are represented by graphic elements, and parts that require a movement period until the production process are included in the parts and procurement line. Appropriate parts / moving lines are represented by graphic elements connected by changing attributes, and a plurality of manufacturing processes for manufacturing the product by assembling or processing the multiple parts are at least for each manufacturing process. The process line corresponding to the process period including the parts waiting period is represented by graphic elements, and for partial products that require a movement period to other manufacturing processes of the manufactured partial products A product line corresponding to the moving period of the partial product is connected to the process line by changing the attribute with a graphic element, and an end point for each of the represented parts and a manufacturing process that requires the parts, In this case, the period is related with a graphic element in terms of a period, and further, a production required period of the product (final product) is represented.
Further, the present invention is characterized in that in the production process diagram of the production process diagram display system, the period in the parts and the period in the production process are represented in correspondence with the graphic elements of each line.

The present invention also relates to a graphic process of the production process diagram display system, wherein the line graphic element corresponding to the period of the parts or the period corresponding to the period and the graphic of the line corresponding to the period of the production process or the period. It is characterized by being able to change elements including setting or deletion by interactive operation.
In the manufacturing process diagram of the manufacturing process diagram display system, the present invention reversely calculates a necessary production amount to be manufactured for each manufacturing process in consideration of a defect rate for each manufacturing process from the production amount of the product. The process period for each production process is determined according to the required production quantity produced for each production process, and further, for each part required for each production process from the necessary production quantity produced for each production process calculated backward. Considering the defect rate, the necessary number of points for each component is calculated backward, and the procurement period for each component is determined according to the calculated required number of components for each component.
In the production process diagram of the production process diagram display system, the present invention represents the necessary production amount to be produced for each of the reversely calculated production processes, and further represents the necessary number of points for each of the reversely calculated parts. It is characterized by representing various parts.

  According to the present invention, a production process diagram that can be set, changed, etc. by interactive operation can be easily created by a product designer or production manager using an application such as a PC. By displaying and presenting on the screen, the production period of the product can be accurately grasped, and the product can be shipped according to the production plan with a minimum necessary inventory of parts and materials.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a system for creating and displaying a production process diagram for grasping the production period of products and the procurement of parts according to the present invention and a method for using the system will be described with reference to the drawings.

[Production process diagram]
FIG. 1 shows an embodiment of a production process diagram for grasping a production period and the like according to the present invention. The time (day, month, and / or year, etc.) is displayed at the top of the production process diagram. In the production process diagram, a line (line segment), which is a graphic element that is calculated from the starting point (for example, when the order is received) as a required production period and added with, for example, the number of days (170 days) as a result. . Furthermore, the production process diagram shows a procurement period (for example, from the start point (part / start point) (for example, at the time of ordering) to the point of delivery (part / end point) for the part 1 used in the process / start point of the manufacturing process 1. The number of days) is input, for example, it is displayed as a line (line segment) that is a graphic element of parts / procurement line with the number of days (35 days) added, and further from the procurement source of parts 1 to the factory of production process 1 Lines (line segments) that change the connection relationship (including attributes (thickness, type, color, etc.)) with the process / start point of production process 1 by inputting the period required for carrying in (parts / movement period) For example, the number of days (5 days) is added and the attributes (including thickness, type, color, etc.) are changed, and the line (line segment) is a graphic element of the moving period. The For parts (parts such as parts, materials and software elements) 2 used 10 days after the process / start point of production process 1 as well, delivery from the start point (part / start point) (for example, when ordering) By inputting the period (for example, the number of days) up to the time point (part / end point), for example, the number of days (60 days) is added and displayed as a part / procurement line. Since the part 2 can be immediately procured at the factory of the production process 1, the parts / movement period is displayed as none. In addition, the fact that the product is delivered with a delay of 10 days from the period required in the manufacturing process 1 is displayed as a line (line segment) which is a graphic element in the connection relationship with the parts and the acquisition points. Furthermore, from the starting point (parts / starting point) (for example, at the time of ordering) to the point of delivery (parts / ending point) for the parts (parts such as parts, materials and software elements) 3 used in the process / starting point of the production process 2 By inputting the procurement period (for example, days) up to, for example, the number of days (110 days) will be displayed with a line added, and the period required for delivery from the part 3 supplier to the manufacturing process 2 factory (parts, For example, the number of days (10 days) is added to the connection relationship with the process / start point of the production process 2 (displayed by a line segment that is a graphic element with a changed attribute) by inputting the (movement period). It is displayed as a line (segment) of parts / moving periods with changed.

In production process 1, parts (parts such as parts, materials, software elements, etc.) 1 are used at the process / starting point, so the line (segment) whose attributes have been changed at the end of the movement period of component 1 (at the time of delivery) Since the parts 2 can be acquired with parts / acquisition points with a delay of 10 days, the parts 2 are connected with lines (segments) whose attributes are changed with the parts / acquisition points. Since a waiting period for delivery occurs for the part 2, it is calculated and displayed on the process line with different attributes. Further, since the process / start point of the production process 1 and the period required for the production process 1 are input, the waiting period of the part 2 is added to these, and the process period from the process / start point to the process / end point is calculated. For example, the process period is displayed as a line (line segment) that is a graphic element of the process line to which the number of days (40 days) is added, and a period required for carrying in from the manufacturing process 1 factory to the manufacturing process 2 factory ( When the product / movement period is entered, for example, the number of days (30 days) is added as the product / movement period, and the attribute is changed. 3 is a connection relationship with the process / start point of the production process 2 (represented by a line segment with a changed attribute, which is a graphic element), and the input waiting period of the production process 2 is calculated. Is displayed in a line of step 2 is turned waiting period for changing the attributes (segment). The product manufactured in the manufacturing process 1 is referred to as a partial product.
The manufacturing process 2 is also input in the same manner as the manufacturing process 1 by being connected to the end point of the process 2 input waiting period of the manufacturing process 1 (product delivery time point), and is calculated and displayed. And it is matched with the required production period.

  As explained above, the production process diagram shown in FIG. 1 includes the procurement period and transportation period for the necessary parts, and the period for carrying the product (including the case where the product is a part) between production processes. Is done. And if the parameters such as the production capacity of equipment / workers, transportation period, etc. are input again as production process data, it will change, and even if the length of the line (segment) is changed, the period display and parameter value will change. become. In other words, if manufacturing process data is input, a line (line segment) according to the manufacturing process data is displayed, and then the length of the displayed manufacturing process line can be input again as the manufacturing process data as a parameter. Will change as well. However, as the user already has a line (line segment) as a picture, when the period of the production process changes, if the arrow of the line is picked and stretched, the period is extended, and the period display value is also changed. The connection-related part also changes in conjunction. Also, if you pick the numerical value of the period display and change the numerical value, the length of the figure will change according to the numerical value.

  That is, in the production process diagram, it is possible to change the setting contents of a graphic element such as a line (line segment) by interactive operation, or to input and create a graphic element that can be interactively operated by interactive operation.

  In the production process diagram to be displayed, graphic elements such as lines (line segments) include rod-shaped elements, and are not limited to lines (line segments).

By creating and displaying the production process diagram described above, it becomes possible to grasp the basic production process for producing a product. That is, a plan for producing a predetermined amount of a predetermined product in a predetermined period cannot be made without the above manufacturing process diagram (manufacturing process diagram). To make a production plan, the estimated sales volume is also necessary, but it is omitted here. Using this production process diagram, a large-scale production plan is created.
[Calculation of production order quantity considering occurrence of defects]
In reality, however, defects occur in purchased parts and in the manufacturing process. If parts are ordered and each production process is executed on the assumption that no defect will occur, a predetermined number of products cannot be produced (produced). For example, if one of the 5000 copier parts is screwed out during the manufacturing process and the screw thread is crushed and insufficient, one copy machine cannot be completed. In one factory, there is no single screw, so I move the machine tool and watch the scene of working all night.
Therefore, FIG. 1 shows a production process diagram including a procurement period and a transportation period of purchased parts necessary for each production process. As a result, it is possible to grasp the required production period including the start time of parts arrangement.

Further, FIG. 2 shows a diagram that the design department in charge first considers. FIG. 2 is a production arrangement diagram / calculation diagram for calculating the required number of parts and the required number of production in the production process when it is assumed that a defect will occur.
That is, FIG. 2 is obtained by adding the amount to be produced to the production process diagram of FIG. The display form of FIG. 2 is folded in FIG. 1, and when it is desired to confirm the required number of detailed parts in FIG. 1, display and non-display are possible for each part.

  An embodiment using FIG. 2 and its calculation process (association process) will be described below. First, the production planned quantity S1 of the product was set to 10 units. A person inputs 10 units in the production amount S1 on the screen. Then, first, the necessary number S2 of production in the production process 2 is calculated backward from the production amount S1 in consideration of the defect rate of 1% and becomes 11 units. If it is assumed that a defect occurs in manufacturing process 2 even at 1%, one unit may become defective. The defect rate here is determined by the responsible design based on the defect appearance state in a similar process experienced in the past. Next, since the manufacturing process 1 also has a defective rate of 1%, a value of 1% of the required number S2 is added to the manufacturing process 2, and the required number S3 of the manufacturing process 1 is 12 units. Become. As described above, the necessary numbers S2 and S3 of the production process 2 and the production process 1 are calculated from the production plan quantity S1 of the product by back calculation and displayed on the screen.

  Next, as shown in FIG. 2, parts 1 and 2 are related to manufacturing process 1 and part 3 is related to manufacturing process 2 as parts used in each manufacturing process as shown in FIG. It has been. As a method of this association, in order to calculate the necessary number b1 of the part (part group) 1, the necessary number S3 of the production process 1 and the defect that becomes defective after being delivered from the part manufacturer (parts supplier) Using the numerical value of the rate k1 (10%) and the number of parts t1 per product (t1 (25 points)), calculate the required number of parts b1 for the part 1 using the following formula (1), and display it as 330 points. Display above.

b1 = (t1 * S3) + [(t1 * S3) * k1] (1)
Similarly, by associating the part 2 with the manufacturing process 1 and the part 3 with the manufacturing process 2, the defect rate k2 (5%) of the part 2 and the number of points / unit t2 (30 points) and the defect rate k3 (2%) of the part 3 And based on the number of points / unit t3 (15 points), the necessary number of points b2 of the part 2 and the required number of points b3 of the part 3 are calculated by the following formulas (2) and (3), respectively, and are displayed as 378 points and 169 points respectively. To display.

b2 = (t2 * S3) + [(t2 * S3) * k2] (2)
b3 = (t3 * S2) + [(t3 * S2) * k3] (3)
However, the numerical values in [] in the above formulas (1), (2), and (3) are rounded up to an integer. k2 indicates a failure rate of the component 2 and k3 indicates a failure rate of the component 3.
Through the above calculation process (association process), the number of parts arranged to the parts manufacturer (parts supplier) by the input of the production plan quantity S1 of the product is determined as the defect occurrence rate in each production process and the defect rate in each part. It becomes possible to grasp in consideration.

  Next, a method for associating a part procurement period and a manufacturing process period will be described with reference to FIGS. 1 are associated with the coordinate transformation operation unit 6 shown in FIG. 3 in the parts / procurement line processing unit 11 shown in FIG. The numerical values of the parts / movement period shown and the parts / movement lines are associated with the coordinate transformation calculation unit 6 shown in FIG. 3 in the parts / movement line processing unit 13 shown in FIG. In this association method, the position coordinates of each line segment are recorded in the internal table 7 shown in FIG. 3, and the start point and end point can be converted into the start date and end date by the coordinate conversion calculation unit 6, respectively. It is like that. The difference between the start date and the end date is displayed as a period such as a procurement period. Conversely, when the position or length of the line segment is changed by dragging with the mouse, the parts / procurement line processing unit 11 and the parts / movement line processing unit 13 shown in FIG. The position coordinate of 7 is retrieved and updated, and the period is calculated from the difference between the converted start date and end date, and is displayed as a numerical value. Also, in the case of the part 3 in FIG. 1, by selecting the part / start point, the part / end point, the procurement period, and the parts / movement period, the date and period values can be entered and changed. When the period is input or changed, the input period value is converted into the length of the line segment by the internal table 7 of the position coordinates, and the converted line segment is fixed with the start point fixed. The end point corresponding to the length is determined, and the production process diagram is updated. The attributes of the line (line segment) and the line (line segment) will be described with reference to FIG. 1. The numerical value of each period and the length of each line segment are also used as parts used in each manufacturing process. , Part 3 is associated with manufacturing process 2. The parts procurement period and parts / movement period are determined based on the normal delivery record and the estimation period of the parts manufacturer. The total period of the procurement period of the part 1 and the parts / movement period is associated with the process / starting point of the production process 1. The total period of the procurement period of the part 2 and the parts / movement period is associated with the process / acquisition point of the production process 1, and the association information is recorded in the internal table 7. The process period changes. The parts / acquisition points are installed in a specific period after the start of the manufacturing process, and are used for associating parts required when the manufacturing process has progressed to a certain point. The part 2 in FIG. 1 is a part that is required within 10 days after the start of the manufacturing process 1, but since it is delivered 20 days after the start of the manufacturing process 1, a part waiting period of 10 days occurs. Yes. The part 3 is associated with the process / starting point of the production process 2, and the association information is recorded in the internal table 7. Even if the production process 1 is completed, the production process 2 continues until the part 3 is delivered. Indicates that it cannot start. The product production required period is displayed on the screen with the numerical value and the length of the line (line segment) as the period calculated from the parts 1, 2, and 3 and the production steps 1 and 2.

  When the production process diagram as described above is made, the design department can consult with the production department regarding the process. This is because, in order to actually carry out each process, people / equipment with the technology to execute the process are required. In addition, the design department can consult with a supplier who purchases parts about whether or not such a product can be created in a predetermined period.

  As a result of consulting the production department and the purchaser, the design department recreates it so that FIG. 2 can be implemented. As a result, FIG. 1 also changes. The design department repeats this work to create a diagram of the flow of building a product from purchasing arrangements for parts. At the final stage, the amount of parts purchased and the value of each process with a margin are set as actual implementation details.

  FIG. 1 is very simple with three types of parts and two types of processes. However, as shown in FIG. 2, if a numerical value is configured in consideration of defects, the amount of necessary parts cannot be ascertained mentally. Even in a simple case as shown in FIG. 1, if a value to be actually used is entered, the value cannot be calculated by just looking. Here, there are more actual processes, and the flow from process to process becomes complicated. In addition, many parts are used, and the relationship between parts and processes becomes more complicated. Even if you think in your head, you can't imagine the whole thing numerically. Therefore, in the present invention, calculation is performed using a computer. The contents can be expressed by a simple PC, and a high-performance PC is not required. Therefore, in the present invention, an application that can be used on a PC is a useful tool for design.

  That is, in the present invention, the above production process diagram, production arrangement amount / calculation diagram is interactively input from the screen, and the numerical value as the parameter is displayed by selecting and inputting the parameter on the screen. The process line, parts, and procurement line use a PC application that allows operations such as addition, deletion, and connection on the screen.

  By making such a simple PC application, a designer or production manager of a factory that manufactures a product can easily create and use it.

[Structure of the invention]
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a functional block diagram showing a system for creating and displaying a production process diagram according to one embodiment. A computer system such as a PC composed of functional components 1 to 10 is a “production process diagram display system” in which each functional component executes the following processing.

  The control unit 1 responds to the user's operation with each operation unit (parts / procurement line operation unit 2, process line operation unit 3, parts / movement line operation unit 4, product / movement line operation unit 5). The coordinate transformation calculation unit 6 and the production process diagram display unit 9 are activated, the operation of the keyboard and the mouse is detected, the selection of each processing unit and the association with other processing units are performed.

  The parts / procurement line operation unit 2 has functionally input means such as a keyboard and operation means such as a mouse, and the parts / procurement line corresponding to the user's operation with respect to the coordinate conversion calculation unit 6. Input, change, input of line (line segment), move, delete, change, link (associate) operation processing. The parts / procurement line processing unit 11 illustrated in FIG. 5 is functionally configured by the parts / procurement line operation unit 2, the coordinate conversion calculation unit 6, and the internal table 7.

  The process line operation unit 3 functionally includes an input unit such as a keyboard and an operation unit such as a mouse. The process line operation unit 3 inputs and changes numerical values of the process line corresponding to the user's operation to the coordinate transformation calculation unit 6. Input, move, delete, change, and link (associate) operations are performed. The process line processing unit 12 illustrated in FIG. 5 is functionally configured by the process line operation unit 3, the coordinate transformation calculation unit 6, and the internal table 7.

  The parts / moving line operation unit 4 functionally includes input means such as a keyboard and operating means such as a mouse, and the parts / moving line corresponding to the user's operation with respect to the coordinate conversion calculation unit 6. Input, change, input of line (line segment), move, delete, change, link (associate) operation processing. The components / movement line processing unit 13 shown in FIG. 5 is functionally configured by the components / movement line operation unit 4, the coordinate conversion calculation unit 6, and the internal table 7.

  The product / movement line operation unit 5 has input means such as a keyboard and operation means such as a mouse, and inputs / changes numerical values of products / movement lines corresponding to user operations to the coordinate transformation calculation unit 6. Input, move, delete, change, and link (associate) operations are performed. The product / movement line processing unit 14 illustrated in FIG. 5 is functionally configured by the product / movement line operation unit 5, the coordinate transformation calculation unit 6, and the internal table 7.

The coordinate conversion calculation unit 6 performs a process of converting and updating the internal table into position coordinates corresponding to a numerical value when a numerical value is input or changed in the processing of each of the processing units 2, 3, 4, and 5. I do. Further, when a line (line segment) is input, moved, deleted, changed, or connected (associated), a process of searching for position coordinates, changing to a corresponding numerical value, and updating is performed.
The internal table 7 includes a screen for inputting and operating in each of the operation units 2 to 5, with respect to the production process diagram file 8, each part, the start date and the end date of each production process, The period and the start point, end point, length position coordinates, parts / acquisition points, and association of each line (line segment) corresponding to each line (line segment) are tabulated and updated.

  The production process diagram file 8 is recorded and updated as a production process diagram file based on the contents (including the updated contents) recorded in the internal table 7.

The production process diagram display unit 9 displays the production process diagram file 8 on the display 10 in order to present the production process diagram to the user. The display 10 presents a production process diagram including a screen for input and operation to the user.
The input means and operation means may be connected to the control unit 1.

[Operation of the Invention]
Hereinafter, an embodiment of the present invention will be described with reference to the flowcharts of FIGS. FIG. 4 is a flowchart showing a flow of operation and display when the user operates. First, the respective operation units 2 to 5, the coordinate transformation calculation unit 6 and the production process diagram display unit 9 are activated based on the activation command from the control unit 1, and the production process diagram display unit 9 reads the production process diagram file (S41). ), On the display 10, each processing unit 11-14 also reads the production process diagram file into the internal table 7 (S41), according to the operation from each operation unit 2-5, the line (line segment) of the production process diagram, Alternatively, editing is performed including association with other processing units such as numerical value input, movement, deletion, and change (S42). Then, each processing unit 11 to 14 updates the production process diagram of the internal table 7 according to the user's operation content obtained from each operation unit 2 to 5, and further updates the production process diagram file 8. (S43). Then, the production process diagram display unit 9 displays the updated production process diagram on the display 10 (S44).

  Next, the flow of processing performed by the user will be described with reference to FIG. FIG. 5 is a flowchart showing only the parts / procurement line processing unit 11 of FIG. 3 for convenience of explanation. The process line processing unit 12, parts / movement line processing unit 13, and product / movement line processing unit 14, which are other processing units, are internally processed according to the same flowchart as the parts / procurement line processing unit 11. Do. Here, the flow of processing will be described with reference to FIG. 5. When the user operates, for example, the control unit 1 detects the operation (S20) and selects which processing unit to process (S21). The processing is executed in the processed unit. Here, when the user inputs and edits the parts / procurement line, the processing in the parts / procurement line processing unit 11 is selected. User input and editing may be performed by dragging the length of a production process diagram line (line segment) with a mouse or by inputting a numerical value, but the operation unit 2 selects a line or a numerical value. To detect which operation is being performed (S26). When the numerical value is input or changed in step S27, the processing unit 11 retrieves the target component name from the internal table 7, and the coordinate conversion calculation unit 6 converts the numerical value into a position coordinate (S29). In the conversion method, the numerical value of the input period is converted into the line length (S29), and the part / end point corresponding to the converted line length is determined with the part / start point fixed. Then, the internal table 7 is updated (S31). In addition, in step S28, the processing unit 11 inputs, moves, deletes, changes, and connects lines (line segments), and calculates the component / start point and component / end point calculated by the coordinate transformation calculation unit 6. The procurement period is converted from the difference in position coordinates (S30), and the internal table 7 is updated (S31). Next, for example, in step S32, the control unit 1 refers to the association information of the internal table 7 based on the presence / absence of association with another processing unit, and if there is association with another processing unit, the processing unit is selected. Returning to (S21), a predetermined processing unit is selected from the process line processing unit 12, the parts / movement line processing unit 13, and the product / movement line processing unit 14 to perform processing. The association information in the internal table 7 is designated by points on the line such as the start point, end point, parts / acquisition points, etc., using the name or address of the line (line segment) to be associated as a key. When all the associations are processed, the production process diagram file 8 is updated (S33), and the production process diagram is displayed on the screen by the production process diagram display unit 9 (S34).

  Up to now, for the sake of explanation, the case where there are three types of parts has been described. However, in actual operation, since the types of parts are often 5000 to 10,000, practically using FIG. The screen image of will be described. At the stage of creating the production process diagram for the first time, numerical data such as 10000 types of parts and the start date, end date, defect rate, etc. of each production process, and the conditions such as association can not be entered manually. Since it takes a lot of labor, it is possible to perform batch input to the internal table 7 or a storage device (not shown) using a spreadsheet software format on the market. In addition, numerical data such as start date, end date, and required number of parts can be collectively output to the display 10 from the internal table 7 or a storage device (not shown).

  Next, the function of the production process diagram will be described with reference to FIG. 6. When the operator wants to see a part associated with the process / start point of the production process 1, the operator selects the process / start point with the mouse. When clicked, the parts delivered at the process / starting point can be read out from the internal table 7 or a storage device (not shown) and displayed according to the supplier (supplier) company name. FIG. 6 is a screen image diagram in which the part name of the company A as the supplier company name is displayed. The parts 1 to 15 are actually displayed with the part names sorted in order of name or descending order of the procurement period. Since there are many types of parts, it cannot be displayed on one screen, so it can be displayed by selecting the tab of the supplier you want to see by sorting it with tabs using the supplier name (supplier name) as a key. Yes. Other key categories include domestic regions / countries, parts categories, warehouses, etc., which are selected according to the needs of the operator. If there are too many parts to fit on the screen, you can scroll with the scroll bar on the right. The manufacturing required period at the top of FIG. 6 and the manufacturing processes 1 and 2 at the bottom are fixed, and the result after the change can be immediately confirmed. If the number of production steps is too large to fit on the screen, scrolling is possible with the right scroll bar. Similarly, if you click the parts / acquisition points of production process 1 with the mouse, the associated part name is displayed, and you can immediately find the part name causing the part waiting period, shortening the period with the supplier It is possible to negotiate and speed up arrangements. As a result, when the change can be made, the data of the associated manufacturing process and the required production period are updated and displayed by inputting the numerical value of the part or changing the line. In addition, as explained in Fig. 2, the required number of each part can be expanded by clicking the part name or production process name with the mouse or by using the batch expansion function, so enter the production plan quantity. Thus, the required number of points for each part is immediately calculated and displayed.

By using this embodiment, even if there are about 10,000 types of parts, it is possible to easily grasp the parts that will be the bottleneck of the required production period, the number of necessary parts, and the progress of the production process. .
According to the present embodiment described above, the period from the purchase request (or order) to the receipt of the necessary parts / materials on the production process diagram displayed on the screen for grasping the production plan of the product, It is possible to set, change, etc. by interactive operation by changing the attributes of graphic elements such as lines, including the period of carrying the product between each production process and the association (connection) with each production process about necessary parts, materials, etc. Therefore, it is possible to accurately grasp the production period of the product, and as a result, when there is a production plan for making and shipping the set amount during the set period of the product, the product can be produced to meet the production plan It is possible to check whether or not.

  In particular, it is possible to input the period for carrying products during each production process by changing the attributes of graphic elements such as lines, so that it is possible to accurately grasp the production period when foreign companies collaborate to create products. It becomes possible.

  In addition, by associating (connecting) necessary parts / materials with each production process in consideration of the product failure rate and the component failure rate, the production period can be reduced with the minimum necessary inventory. It becomes possible to grasp accurately.

It is a figure which shows one Embodiment of the manufacture process figure for grasping | ascertaining the manufacture period etc. concerning this invention. It is a figure which shows other embodiment of the production process figure which put the quantity to produce in the production process figure shown in FIG. It is a figure which shows schematic structure of the system which produces and displays the manufacturing process figure concerning this invention. It is a figure which shows the processing flow in the parts / procurement line processing part, process line processing part, parts / movement line processing part, product / movement line processing part, etc. concerning this invention. It is a figure which shows the processing flow of the whole system which produces and displays the manufacturing process figure concerning this invention. It is a figure which shows one Embodiment of the practical manufacture process figure concerning this invention. It is a figure which shows the example of the conventional manufacturing process drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Control part, 2 ... Parts / procurement line operation part, 3 ... Process line operation part, 4 ... Product / movement line operation part, 5 ... Product / movement line operation part, 6 ... Coordinate transformation calculation part, 7 ... Inside Table: 8 ... Production process diagram file, 9 ... Production process diagram display unit, 10 ... Display, 11 ... Parts / procurement line processing unit, 12 ... Process line processing unit, 13 ... Parts / movement line processing unit, 14 ... Product / Moving line processing department.

Claims (5)

A system that displays a production process diagram on the screen,
As the production process diagram,
For a large number of parts that make up a product, for each part, at least parts and procurement lines corresponding to the procurement period of each part are represented by graphic elements, and parts that require a movement period until the production process. Represents the parts / procedure line connected to the parts / moving line corresponding to the moving period of the parts by changing the attribute of the graphic element,
For a plurality of manufacturing processes for manufacturing the product by assembling or processing the multiple parts, a process line corresponding to the process period including at least the parts waiting period is represented by a graphic element for each manufacturing process. Furthermore, for partial products that require a moving period until the other manufacturing process of the manufactured partial product, the product line / moving line corresponding to the moving period of the partial product is connected to the process line by changing the attributes with graphic elements. And
Representing the end points for each of the represented parts and the manufacturing process that requires the parts in a time-related manner by graphic elements,
Furthermore, a production process diagram display system, characterized in that it represents a required production period of the product.   2. The production process diagram display system according to claim 1, wherein in the production process diagram, a period in the parts and a period in the production process are represented in correspondence with graphic elements of respective lines.   In the production process diagram, the period of the parts or the graphic element of the line corresponding to the period and the period of the production process or the graphic element of the line corresponding to the period are changed by interactive operation including setting or deletion. 3. The production process diagram display system according to claim 1, wherein the production process diagram display system can be used.   In the production process diagram, the necessary production amount to be produced for each production process is calculated from the production amount of the product in consideration of the defective rate for each production process, and the production amount to be produced for each production process is calculated in reverse. The process period for each manufacturing process is determined, and the necessary rate for each part is determined in consideration of the defective rate for each part required for each manufacturing process from the required production volume for each manufacturing process calculated backward. 3. The production process diagram display system according to claim 1, wherein the number of points is calculated backward, and a procurement period for each component is determined according to the required number of points calculated for each component. 5. The production process diagram display system according to claim 4, wherein the production process diagram represents a necessary production amount to be produced for each of the reversely calculated production processes, and further represents a necessary number of points for each of the reversely calculated parts. .

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