JP5279387B2 - Production management system and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve standardization of production adjustment work and precision of a production plan by automatically adjusting a member production plan every time a production event occurs. <P>SOLUTION: The production management system compares changing stock fluctuation of structural members with a threshold stored by a storage part 102 on the basis of progress situations of a mold plan, a production plan of the structural members, and a stock plan of the structural members and information on failure occurrences. A comparison determination part 106 outputs an event occurrence signal of the production event occurrence to a production adjustment part 108 when the stock fluctuation is larger than the threshold value. The production adjustment part 108 automatically performs production adjustment and production management by changing correlation with a molding step corresponding to the structural members needing production adjustment on the basis of the event occurrence signal. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a production management system and method for managing a member inventory amount of a manufacturing member when a product is molded or manufactured from a variety of manufacturing members and outputting a command to each process until the product is completed.

  Conventionally, in a production management system for a production line in a tire production plant, for example, a post-process (molding process) and a pre-process (member process) are performed at a shift every time or a daily distribution of a preset production schedule. ) Production events such as production progress and work-in-process inventory hold are automatically fed back to the previous process production plan. In reality, however, the person in charge of producing the production plan adjusts the production based on the intuition and experience of the person in charge while collecting information on the production events that occurred in each process.

In addition, as shown in Patent Document 1, a tire manufacturing member management method for grasping an inventory amount by a carriage on which a manufactured member is mounted for each type of manufacturing member required for tire molding, and managing a tire manufacturing member, and A production adjustment method using the same has been proposed.
JP-A-10-701

  However, in the feedback timing performed in the current system, the production event is reflected in the production schedule of the previous process every day or every shift, and the reflection timing may be late for smooth production. When there is a lot of production events or when there are no experienced production planners, it cannot be revised to a consistent plan, resulting in great disruption at the production site, resulting in excessive or unnecessary production of unnecessary parts. Production troubles such as running out of parts in the process may occur.

  In addition, as in Cited Document 1, when the inventory amount for each product type is grasped by a cart on which manufactured members are mounted and the tire manufacturing members are managed, the inventory amount and the member production at a certain point in time are managed. However, since there is no correspondence between the amount of inventory and the molding plan that is actually molded, there is a possibility that an excess of inventory with respect to the molding plan, a member cut in molding, or the like may occur.

  In order to solve the above problems, the present invention provides a production management system that standardizes production adjustment work and improves the accuracy of a production plan by automatically adjusting a member production plan every time a production event occurs.

As a first embodiment according to the present invention, the computer produces molding information related to the progress of the molding plan of the product planned in advance in the product manufacturing process and the occurrence of defects, and the production of the components associated with the molding plan. production of performing the production information of the progress and failure and related components of the plan, and stock information components relating to the progress of the inventory planning components as defective, the production adjustments to each plan based on The management system is a computer, wherein the computer changes the inventory change of the component, which changes when any of the molding information, the production information of the component, and the inventory information of the component is updated via the input means. comparing the threshold value to be the amount and criteria for production adjustment exemplary components for inventory variation amount before SL components, when inventory variation amount is larger than the threshold value, structure Includes a comparison judgment means for outputting the event occurrence signal indicating that production adjustments for members is required, and production adjustment means for performing production adjustments to components on the basis of the event occurrence signal output from said comparison and determination means The production adjusting means extracts from the molding plan after the event occurrence signal is output, the molding process corresponding to the component that generated the event generation signal and the component corresponding to the molding process. Then, while changing the correspondence between the component and the molding process, and comparing the component inventory amount of the component and the consumption of the molding process after the change, if a shortage occurs in the member inventory amount, The production adjustment is performed by calculating the shortage and adding the production process of the component to the production plan .
Thereby, the production plan is automatically changed, and efficient production management can be performed. In particular, paying attention to inventory fluctuations in the inventory of component parts, production adjustment of component members is performed by changing the correspondence with the molded product corresponding to the component members that require production adjustment. Excessive production can be prevented. In addition, since the production adjustment of the component members is performed using the threshold value with respect to the inventory fluctuation amount of the component members, the production adjustment of the same quality can always be performed.

As another embodiment according to the present invention, the production adjusting means sequentially processes each time an event occurrence signal is output .
As a result, the production plan is dealt with promptly and automatically with respect to the production event, and production can always be performed based on the latest information.

As another embodiment according to the present invention, the production adjustment unit performs production adjustment by changing a correspondence relationship with a component corresponding to a product related to the output of an event occurrence signal, and a correspondence between the product and the component relationship Ru Tei is correspondence by production lot of the components for production lots of product.
Thereby, since a structural member is always ensured with respect to a product, member breakage does not occur in the process of molding a product. In addition, it is possible to suppress an excessive amount of material inventory due to excessive production of components. Furthermore, since the correspondence between the production lot of the component and the production lot of the product is determined in the correspondence between the product and the component, when the production adjustment is performed, the production lot to which the component has moved is already known. Updating to a new production plan can be performed quickly.

As other forms according to the present invention, the progress of the production plan of the product planned in advance in the production process of the product and the molding information regarding the occurrence of defects, and the progress of the production plan of the component members associated with the molding plan failure and the production information components relating to a production control method of performing production adjustments to each plan based on the inventory information components relating to and a failure occurrence progress inventory planning components and , among the stock information of the production information and the components of the molding information component, stock or inventory variation components which changes by being continually updated information through the input unit and the front SL component comparing the threshold value as a criterion of production adjustment exemplary components for the variation amount, when inventory variation amount is larger than the threshold value, the need for production adjustments to components A first step of outputting to an event occurrence signal, and a second step of performing production adjustments to components on the basis of the event occurrence signal output from said first step, the second step From the molding plan after the event generation signal is output, extract the molding process corresponding to the component that generated the event generation signal and the configuration member corresponding to the molding process, and The correspondence between component parts and molded parts is changed, and the component inventory after the change is compared with the consumption of the molding process to calculate the shortage when there is a shortage in the component inventory. Thus, the production adjustment is performed by adding the production process of the component members to the production plan .
Thereby, the production plan is automatically changed, and efficient production management can be performed. In particular, paying attention to inventory fluctuations in the inventory of component parts, production adjustment of component members is performed by changing the correspondence with the molded product corresponding to the component members that require production adjustment. Excessive production can be prevented. In addition, since the production adjustment of the component members is performed using the threshold value with respect to the inventory fluctuation amount of the component members, the production adjustment of the same quality can always be performed.

As another embodiment of the present invention, the second step is sequentially processed every time an event occurrence signal is output .
As a result, the production plan is dealt with promptly and automatically with respect to the production event, and production can always be performed based on the latest information.

As another embodiment of the present invention, the second step performs production adjustment by changing a correspondence relationship with a component corresponding to a product related to output of an event occurrence signal, and the product and the component correspondence Ru Tei is correspondence by production lot of the components for production lots of product.
Thereby, the production plan is automatically changed, and efficient production management can be performed. In particular, paying attention to inventory fluctuations in the inventory of component parts, production adjustment of component members is performed by changing the correspondence with the molded product corresponding to the component members that require production adjustment. Excessive production can be prevented. In addition, since the production adjustment of the component members is performed using the threshold value with respect to the inventory fluctuation amount of the component members, the production adjustment of the same quality can always be performed.

  Hereinafter, the best mode of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the configuration of a production management system 1 according to the first embodiment of the present invention. The production management system 1 according to the first embodiment of the present invention includes a molding plan that is updated at any time via an input means, molding information about the progress of the molding plan and occurrence of defects, and a production plan for components that are associated with the molding plan. Production event output from the comparison / determination unit 106 based on the information such as the production information of the component member relating to the progress status and the occurrence of defects and the inventory information of the component member relating to the progress situation and occurrence of defects occurring in the inventory plan of the component members Detects an event signal that informs the occurrence and extracts a molding process for molding a product related to a production event (hereinafter also referred to as a post-process) and a production process for a component corresponding to the molding process (hereinafter also referred to as a pre-process). Then, the same molding process as the production event that occurred and the corresponding component production process are identified from each production plan, and the correspondence between the component production process and the molding process A production management system 1 for production adjustment so as not to cause changes in the molding plans by changing.

FIG. 1 is a block diagram showing the basic configuration of a production management system 1 according to an embodiment of the present invention.
A production management system 1 including a computer includes an input unit 100, a storage unit 102, a processing unit 104, and an output unit 110.
For example, a keyboard 5 as an input means or an automatic monitoring system 7 such as a barcode reader provided on the production line is connected to the input unit 100.
The keyboard 5 is used when a person inputs a defect occurrence (hereinafter also referred to as holding) that occurs in a molding process, production of a component, and inventory of the component. In the automatic monitoring device 7, the barcode attached to the component is read by a barcode reader provided in the production line or the like, and the molding process or the production of the component is performed from a production machine that performs molding or production of the component. The progress status of the component stock of the component members is output to the input unit 100 as needed.
That is, from the input unit 100, the molding information regarding the progress of the molding plan and the occurrence of defects, the progress of the production plan of the constituent members associated with the molding plan, the production information of the constituent members regarding the occurrence of defects, and the Each piece of information such as progress information generated in the inventory plan and inventory information of components related to occurrence of defects is input.
The keyboard 5 is also used when inputting a threshold value or the like for determining whether or not production adjustment needs to be set for each component.
The output unit 110 is connected to the monitor 3 and the manufacturing system 4 in which production is actually performed.

The storage unit 102 sets a threshold value set for each component member that is a criterion for determining a product molding plan, a component member production plan, a component member inventory plan, and a component member production adjustment execution, and a molding for molding a product. The correspondence relationship between the process and the production process of the component that produces the component is stored.
Progress and defects that occur in the molding process, progress and defects that occur in the production of components, progress and defects that occur in the inventory of components, and differences between production plans and manufacturing process results The relational expression for obtaining the inventory fluctuation amount of the component based on the information of “holding” and the information regarding the production event are stored.
The storage unit 102 corresponds to the storage unit of the present invention.

The processing unit 104 includes a comparison determination unit 106 and a production adjustment unit 108.
The comparison / determination unit 106 is input from the keyboard 5 or the automatic monitoring system 7 via the input unit 100 and is updated as needed, such as molding information, production information of component members, and inventory information of component members, and a storage unit The inventory fluctuation amount obtained by the relational expression for obtaining the inventory fluctuation amount that changes based on each information stored in 102 and the threshold value stored in the storage unit 102 are compared, and the inventory fluctuation amount is larger than the threshold value. Sometimes it is determined that a production event has occurred, and an event occurrence signal and event information are output to the production adjustment unit 108. Here, the event information indicates information for identifying a component member in which a production event has occurred.
The comparison determination unit 106 corresponds to a comparison determination unit of the present invention.

When an event occurrence signal is output in the comparison determination by the comparison determination unit 106, the production adjustment unit 108 refers to the production plan and molding plan of the component member stored in the storage unit 102, and determines the component member in which the production event has occurred. The molding process scheduled in the molding plan is extracted after the production event occurs in the molding process of the same product as the molding process of the product corresponding to the production process.
Extract the production process of the same component as the component for which the production event corresponding to the extracted molding process occurred from the production plan of the component, and separate the correspondence between the molding process and the production process of the component to produce The production process of the component so that the correspondence between the production process of the component and the molding process is changed based on the inventory, consumption and production of the component at the time of the event so that the molding plan does not change To adjust production.
For example, production adjustment is performed by moving the extracted production process forward or backward.
In the present embodiment, production adjustment is performed by moving forward the production process of the component members.
The component whose production has been advanced in the component member production plan is associated with the extracted molding process.
Furthermore, regarding the relationship between the production amount in the production process of component parts before the production adjustment in the production adjustment described above and the inventory amount of the component, the component parts are compared to the production quantity in the production process of the component member changed (advanced) by the production adjustment. There may be a shortage of parts inventory. For this reason, the production adjustment unit 108 adjusts the production amount of the component member by calculating the shortage amount and adding the production process of the component member. Through the above, production adjustment is performed, and the processing unit 104 outputs a production plan for new components to the output unit 110 and the storage unit 102. In this production adjustment, there is no change in the production plan of the molding process, that is, the molding plan.
The production adjustment unit 108 corresponds to the production adjustment unit of the present invention.

  The production plan for new components created by the processing unit 104 is output to the storage unit 102 and the output unit 110. The storage unit 102 stores a production plan for a new component and a correspondence relationship between the production process and the molding process of the component whose production has been adjusted, and serves as a comparison determination criterion for occurrence of a new production event. The output unit 110 outputs the production plan of the new component member output from the processing unit 104 to the manufacturing system 4 and outputs it to the connected monitor 3 to display the production event information and the production plan information.

FIG. 5 is a diagram showing an outline of a tire manufacturing process and its corresponding relationship.
As shown in FIG. 5, for example, the tire manufacturing process is roughly divided into two processes, a member process 503 as a pre-process (component member production process) and a post-process (molding process) 501. The pre-process 503 is roughly divided into a rubber kneading process 503a, a tread extrusion process 503b, a cord process 503c, a cutting process 503d, and a bead process 503e. The cord belt 503g and the bead 503h become the constituent members used in the post-process 501. The top tread / side tread 503f, the cord belt 503g, and the bead 503h are stocked as a member stock 502, used as a constituent member in a subsequent process, and formed into a green tire to form one manufacturing process.

In tire manufacture, tires to be manufactured have various sizes and uses, and a process as shown in FIG. 5 is performed by a number of manufacturing lines and manufacturing machines constituting the manufacturing lines.
The process shown in FIG. 5 is a process that is necessary until one tire is molded, and the relationship is a product based on the correspondence between the three types of pre-processes and the component stock of components for one post-process. Is manufactured. Alternatively, if three types of constituent members are used as post-processes, they can be considered as five types of pre-processes and member inventory. The production management system 1 according to the present invention performs production adjustment by changing the above correspondence.

FIG. 2 is a flowchart in the processing unit 104 of the production management system 1 according to the embodiment of the present invention configured as described above.
As shown in FIG. 2, for example, when the production management system 1 is activated by a scheduled activation, the production management system 1 starts from the production management system 1 according to the molding plan, the component member production plan, and the component member inventory plan stored in the storage unit 102. A command based on each plan is output to each process, and manufacturing is started (step 301).
When manufacturing is started based on the command, information such as the on-hold generation and progress in the pre-process, post-process, and parts inventory is input from the keyboard 5 and the automatic monitoring system 7, and the comparison / determination unit is input via the input unit 100. 106 (step 302).

The information input to the comparison / determination unit 106 is generated by holding from the relational expression stored in the storage unit 102 based on the input production results, progress (information), member inventory, or information such as occurrence of holding on the member. The inventory fluctuation amount of the component is obtained (step 303).
The obtained inventory fluctuation amount of the component member is compared with a threshold value individually set as a criterion for production adjustment execution (step 304).
As a result of this comparison, when the inventory fluctuation amount of the component is smaller than the threshold value, that is, when production adjustment is not necessary, the process returns to step 301 and the production event occurrence is continuously monitored. As a result of the comparison, it is determined that the production adjustment is necessary when the inventory fluctuation amount of the component is larger than the threshold value, and includes information on the inventory fluctuation amount of the component identified as needing production adjustment in step 304. An event generation signal is output to the production adjustment unit 108 (step 305).
In this step, the production event occurrence information is output to the storage unit 102, the production event information is stored, and the production event information is displayed on the event table of the monitor 3 connected to the output unit 110. The

  Upon receiving the event occurrence signal, the production adjustment unit 108, based on the production event information, the correspondence between the subsequent process and the previous process stored in the storage unit 102 based on the subsequent process that is in a correspondence relation with the component in which the production event has occurred. Refer to

That is, the production adjustment unit 108 extracts a post-process corresponding to the structural member identified as needing production adjustment from the molding plan, and extracts a pre-process corresponding to the extracted post-process from the production plan of the structural member ( Step 306), the correspondence between the post-process extracted from the molding plan and the pre-process extracted from the production plan of the corresponding component is changed (Step 307).
Specifically, the linked relationship between the post-process and the pre-process related to the production event is once disconnected, and the pre-process is moved forward on the date and time when no change is made to the pre-process of the component member not related to the production event. Since the inventory plan of the component member is renewed due to the forward movement, the post-process extracted in step 306 is newly adjusted by the step 307 in accordance with the new component member production plan according to the corresponding relationship with the previous process.

However, only the production adjustment based on the correspondence relationship between the pre-process and the post-process may cause a shortage in the pre-process after the production plan change of the component members. In the present invention, this occurs because the date and time of production is moved without changing the production amount in the previous process related to the production event. This is because the correspondence between the post-process and the pre-process depends on each other's production lot, and the post-process and the pre-process are created in a one-to-one relationship in the production plan. Naturally, the stock fluctuation amount is generated in a quantity not related to the production lot. This is because, in order to compensate for this, one production lot of the previous process in which the subsequent process and the previous process have a one-to-one relationship is used as a supplement for the production event.
However, the present invention changes the correspondence relationship between the preceding process and the subsequent process, and always maintains a one-to-one relationship between the subsequent process and the preceding process, thereby enabling quick production adjustment. Yes.

In step 307, the component inventory after the production adjustment of the corresponding relationship is compared with the consumption of the post-process already planned in the molding plan. The production process is added to the production plan of the previous process and final production adjustment is completed (step 308).
After the production adjustment is completed, a new component production plan is created (step 309).
The component member production plan newly created in step 309 is updated only from the production plan when the production event occurs, and is output from the processing unit 104 to the storage unit 102 as a new production plan. A production command is output to the manufacturing system 4 through the output unit 110 (step 310).
By repeatedly performing the above steps in the processing unit 104, production adjustment is sequentially performed every time a production event occurs, and production management in the present invention is performed.

  That is, this production adjustment is performed by paying attention to the previous process corresponding to the subsequent process related to the production event based on the production plan before the production adjustment. Therefore, no change is made to the production plan for the post-process other than the pre-process corresponding to the post-process related to the production event and the pre-process corresponding thereto.

In the following, a specific example of production adjustment when a production event occurs in the inventory of components will be described with reference to FIGS. 3 and 4.
FIG. 3 shows a command based on a production plan for a top tread (503f in FIG. 5) which is one of the constituent members of the tire.
FIG. 4 shows production adjustment by changing the correspondence between the post-process and the pre-process when an event occurs.
For example, when 450 m of holding (defect) occurs in the stock of the top tread, which is a constituent member, the holding information is input to the production management system 1 via the keyboard 5 by the manager in charge. The hold information is sent to the comparison / determination unit 106 via the input unit 100, and the comparison / determination unit 106 recognizes that a 450 m defect, that is, an inventory fluctuation amount has occurred in the top tread, and stores the threshold of the top tread stored in the storage unit 102. Refer to the value and receive and compare the information that the threshold value is 50m, and because the amount of reserve, that is, the stock fluctuation amount is larger than the threshold value, the top tread member determines that the production adjustment is necessary. (Step 304), an event generation signal including information on the constituent members is output to the production adjustment unit 108 (Step 305).
When a hold occurs in the post process, the comparison determination unit 106 relates to the post process in which the hold has occurred from the relational expression for obtaining the inventory fluctuation amount of the component stored in the storage unit 102 based on the hold information. The amount of inventory fluctuation for each component is determined from the preceding process or inventory of the component.

In the production adjustment unit 108 to which the event generation signal is input, production adjustment is performed as follows so that the molding plan is not changed.
In addition, the command from the production plan before the production event of the top tread is represented by a table as shown in FIG. In the table, 24-3 indicates the date on the 24th, 3 indicates the third that divides the day into three shifts, and is expressed as 3 shifts on the 24th.

  For example, when the above production event occurs in 24-3 in the table of FIG. 3A and the event occurrence signal is input to the production adjustment unit 108, the inventory amount before the production adjustment of the top tread is 1160 m, consumption Although the amount was 387 m and the production command amount for the same member was 750 m, the consumption of the member inventory increases by 450 m due to the occurrence of the production event. Since the consumption amount due to the production event is 450 m, the production adjustment is performed because the inventory fluctuation amount of the material inventory exceeds a threshold value that is a criterion for performing the production adjustment. As shown in FIG. 4, the production adjustment is performed by changing the correspondence relationship between the post-process and the pre-process based on the production plan for the top tread member (step 307).

FIG. 4 shows the production adjustment method in step 307 below.
In the table of FIG. 4, <1> and <2> indicate post-processes before production adjustment in which the top tread is used, and <11> and <12> indicate pre-processes corresponding to <1> of the post-process, respectively. <11> is shown, and the previous step <12> corresponding to <2> is shown. Similarly, <3> and <4> indicate a post-process after production adjustment in which the top tread is used, and <13> and <14> indicate a pre-process <13> corresponding to <3> of the post-process, respectively. And shows a previous step <14> corresponding to <4>.
Production adjustment by changing the correspondence is performed as follows. In this example, before the production event occurs, the top tread used in the post-process <1> is scheduled to be produced in <11> on the 27th, and is used in the post-process <2>. The top tread was scheduled to be produced on the 2nd of 28th.

However, since the inventory of parts decreased due to the occurrence of production events, the parts that were supposed to be produced on the 1st <11> on the 27th are brought forward to the 1st <13> on the 26th by the production adjustment. . The member produced on the first day <13> on the 26th as a result of the advance is newly linked to the post-process <3>. Similarly, a member that should have been produced at <12> on the 2nd on 28th is moved forward to <14> on the 3rd on the 27th due to production adjustment, and has a new correspondence with the subsequent process <4>.
The movement position of the member production by the replacement is determined by the inventory amount of the member after the production event occurs and the plan of the subsequent process.

A process in which the movement position by the production adjustment in the previous process due to the change in the correspondence relationship is determined by the inventory amount of the member after the production event occurs and the plan of the subsequent process will be described with reference to FIG.
The correspondence between the post process and the previous process was cut off by the production event that occurred immediately after 24-3, and <11> was scheduled for production immediately after 27-1. In order to specify, the production position is calculated from the relationship between the inventory amount after 24-3, the consumption amount, and the command amount, and the production adjustment unit 108 calculates that 26-1 is acceptable.

However, since the top tread member was scheduled to be produced at 778m in 25-3 before the production adjustment, the amount of inventory 518m in 25-3 and the production amount 778m in the consumption after 26-2 There must be 1296m. Therefore, since the 750 m of 26-1 moved in the previous process by the production adjustment is insufficient, the production adjustment for adding the production command of 470 m is performed in 26-2 (step 308).
As a result, the production adjustment of the previous process related to the new production event is finally completed, and the new previous process plan and the inventory plan of the component parts accompanying the change of the previous process plan are determined and output to the storage unit 102 and the production system 4. (Step 309).

  According to the production adjustment method described above, the basic production adjustment is performed by changing the production relationship within a short period of time by changing the correspondence relationship between the post-process and the pre-process corresponding thereto, and keeping the inventory of parts small. Eliminates the shortage of components in subsequent processes.

In the above example, the case where the production event occurs in the constituent member is illustrated, but the production event may occur in the molding process. In this case, all components used in the molding process may be subject to production adjustment. However, even in such a case, the production adjustment is performed by performing the above-described steps in each component member.
Moreover, although the example about the production of the tire has been described, the present invention can be applied to the manufacturing process of other products. For example, the present invention can be applied to a product made up of various parts such as automobile production.

The block diagram of the production management system which concerns on the best form. The flowchart which shows the detailed operation | movement of the production management system which concerns on the best form. The production command figure of the component at the time of the event occurrence which concerns on the best form. The production adjustment figure of the structural member at the time of the event occurrence which concerns on the best form. The figure which shows the process of tire manufacture.

Explanation of symbols

1 production management system, 4 manufacturing system, 100 input unit, 102 storage unit,
104 processing units, 106 comparison determination units, 108 production adjustment units, 110 output units.

Claims (6)

A configuration in which a computer relates to molding information relating to the progress and failure occurrence of a previously planned product molding plan in a product manufacturing process, and relates to the progress and failure occurrence of a production plan for components associated with the molding plan. and production information of the member, a production management system for the production adjustments to each plan based and stock information components relating to the progress of the inventory planning components and failure, in,
Computer, wherein among the stock information of the molded information component of the production information and configuration members, any information inventory variation components which changes by being updated at any time via the input unit and the front SL component comparing the the production adjustment carried criteria components for inventory variations of the threshold, indicating that the inventory variation is at greater than the threshold value, it is necessary to produce adjustments to the components Comparison determination means for outputting an event occurrence signal;
Production adjustment means for performing production adjustment on the component based on the event occurrence signal output from the comparison determination means,
Production adjusting means extracts a component in a molded plan after the event occurrence signal is output with the correspondence relationship between the molding step and the molding step with a correspondence between a structure member which has generated the event occurrence signal Then, while changing the correspondence between the component and the molding process, compare the component inventory after the change and the consumption in the molding process,
A production management system that performs production adjustment to calculate a shortage and add a production process of a component to a production plan when a shortage occurs in a material inventory . The production management system according to claim 1, wherein the production adjustment unit sequentially processes each time an event occurrence signal is output . Before SL production adjustment unit performs production adjustment by changing the correspondence between the components corresponding to the product relating to the output of the event occurrence signal, correspondence between the product and the component is configured for production lots of product The production management system according to claim 1 , wherein the production management system is associated with a production lot of members. Molding information regarding the progress of the molding plan of the product planned in the product manufacturing process and the occurrence of defects,
Production information of components relating to the progress and failure occurrence of production plans of components associated with the molding plan,
A production management method for performing production adjustment for each of the plans based on the progress status of the inventory plan of the component parts and the inventory information of the component parts related to occurrence of defects,
The molding information of stock prices for production information and components of components, inventory variations of any of the information inventory variation components which changes by being updated at any time via the input unit and the front SL component comparing the threshold value as a criterion of production adjustment implementation components to the amount, when inventory variation amount is larger than the threshold, an event occurrence signal indicating that it is necessary to produce adjustments to the components A first step of outputting
And a second step of performing production adjustment on the component based on the event occurrence signal output from the first step, wherein the second step is a molding plan after the event occurrence signal is output. And extracting a molding process corresponding to the component that generated the event generation signal and a component corresponding to the molding process, and changing the correspondence between the component and the molded part. Compare the component inventory of the component after the change with the consumption in the molding process, and if the inventory is insufficient, calculate the shortage and add the component production process to the production plan. A production management method characterized by performing production adjustment. The production management method according to claim 4 , wherein the second step is performed sequentially each time an event occurrence signal is output . Before Stories second step performs production adjustment by changing the correspondence between the components corresponding to the product relating to the output of the event occurrence signal, correspondence between the product and the constituent members for the production lot of product 6. The production management method according to claim 4 or 5 , wherein the production members are associated with each other according to production lots.

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