JP4332164B2 - Workability management system, workability management method, and workability management program - Google Patents

Description

  The present invention relates to a workability management system, a workability management method, and a workability management program for managing workability of resources that perform work on a workpiece.

  In general, when manufacturing or processing an object (hereinafter referred to as “manufacturing”), the traceability information of parts mounted on the product or processed product (hereinafter referred to as “product”) is managed in correspondence with the identification information of the product. When there is any inconvenience in the product, the traceability information is referenced based on the identification information stored in the IC tag attached to the product, and it is clear when and where the product was manufactured. Attempts have been made (see, for example, Patent Document 1).

JP 2005-35327 A (paragraphs 0015 to 0016, FIGS. 1 and 2)

  By the way, resources such as molds and various tools and devices used in the manufacture of products change over time and affect the defects of manufactured products. Therefore, for example, a mold is maintained every specified period designated by the manufacturer of the mold. Even when more molds are used than expected by the manufacturer, maintenance is performed for each specified period, which increases the possibility of product defects. In addition, even when the mold is used less than the manufacturer assumes, maintenance is performed every specified period, and thus maintenance is performed more than necessary. In the former case, it is necessary to recreate the product or correct defective products. In the latter case, the cost of maintenance is higher than necessary. It will lead to.

  Therefore, the present invention can manufacture a normal product that suppresses loss costs derived from resources by managing workability from the work history of resources such as molds and selecting resources to be used according to the workability. The purpose is to be able to.

According to the present invention, as means for solving the above-mentioned problems, the workability management system of the first invention, the workability management method of the second invention, and the workability management program of the third invention are provided for a work. storing the work history of the resources to perform the work against the work history information, a workability management for managing the information of the resource, in association with the said work history information resource identifying information and identifying the resources When a change occurs in the work history information stored in a storage medium, the work history information corresponding to the resource identification information is extracted from the storage medium, and the change contents are updated and stored in the storage medium. and, from the product identification information for product defect information stored in the storage medium, wherein the production instruction information stored in the storage medium and the member item information, and acquires the order information related to the product identification information contained respectively Both resource identification information is determined, and using the work history information, instruction information in which product defects due to resource quality have occurred in addition to the cumulative usage time trend of the resource of the resource identification information is fed back and displayed on the display means Is doing .

Therefore, according to the present invention, since the actual results seen by the finger view, can products manufactured by the orders, it is inferred likely defective. In addition, since the occurrence of product defects can be grasped in the cumulative usage time trend in this way, it can be used for quality improvement activities such as a review of the maintenance cycle.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, a case of a mold will be described as an example of resources. Further, the present invention relates to a workability management system, a workability management method, and a workability management program. Hereinafter, the workability management system will be mainly described.

  First, the configuration of the workability management system of this embodiment will be described. FIG. 1 is a block diagram illustrating a configuration of a workability management system according to the embodiment. In this workability management system 100, it is assumed that each facility including a mold management center 1, buildings A, B, and C and a LAN (Local Area Network) 2 is provided in a predetermined site.

  In this embodiment, it is assumed that communication can be performed between the mold management center 1 and the buildings A, B, and C using the LAN 2, but a WAN (Wide Area Network) may be used. In this case, the mold management center 1 and the buildings A, B, and C are not necessarily provided on the same site. Further, for example, the mold management center 1 may be provided in the building A.

  The mold management center 1 includes a LAN 3 for communication in the mold management center 1 and a server (mold management apparatus) 4 that is connected to the LAN 3 and manages information on the workability of the mold as will be described later. And a mold warehouse 5 having a communication interface (not shown) connected to the LAN 3.

  Building A includes molding machines A01, A02, A03 and LAN6. Here, A01 or the like is a molding machine ID. Since buildings B and C are the same, description thereof is omitted. However, the IDs of the molding machines provided in the buildings B and C are also B01 and C01. Further, the number of molding machines A01 and the like installed in each building A is not limited to three. The LANs 2, 3, and 6 may be either wired or wireless.

  The molding machine A01 includes a control device 7, such as a microcomputer, an IC tag reader / writer 8, a speaker 9, a warning lamp 10, and a touch screen 11. The control device 7 controls the operation of the molding machine A01. Further, the control device 7 presents information input from the IC tag reader / writer 8 and the touch screen 11 on the touch screen 11 and performs communication with the mold management center 1 via an interface (not shown) and the LAN 6. . Further, the control device 7 outputs various information from the speaker 9 and the touch screen 11 and turns on the warning lamp 10 when there is a warning.

  Next, the configuration of the server (computer) 4 will be described. FIG. 2 is a block diagram illustrating a configuration of the server according to the embodiment. The server 4 includes a CPU (Central Processing Unit) 41, a memory 42, a storage unit (storage medium) 43, a network interface unit 44, an input / output interface unit 45, a keyboard 46, and an IC tag reader / writer 47. And a console section 48 such as a display.

  The CPU (processing unit) 41 develops an OS (Operating System) and workability management program in the memory 42 and executes them. The memory 42 is a RAM (Random Access Memory). The storage unit 43 is an OS (Hard Disk), a flash memory, or the like that stores an OS, workability management program, and various types of information. Various information includes parts information (BOM: Bill Of Materials), production instruction information (instructions), molding machine setting information, detailed mold information, warehouse entry / exit information (also referred to as work history information), mold movement. Information (also called work history information), mold history management information (also called work history information), mold traceability information (also called cumulative usage information), product defect information, leveling rule information (also called priority standard information) Etc. Details of each information will be described later.

  The network interface unit 44 controls communication with the LAN 3. The input / output interface unit 45 controls input / output with the keyboard 46, IC tag reader / writer 47, and console unit 48.

  Next, an example of the mold storage state in the mold warehouse 5 will be described. FIG. 3 is an explanatory diagram illustrating an example of a shelf for storing molds in the mold warehouse illustrated in FIG. 1. The shelf 12 is divided into 4 × 3 storage shelves A1 and the like. In this storage shelf A1, etc., A1, A2, A3 from the left at the top, B1, B2, B3 from the left from the top, C1, C2, C3 from the left from the top, and four from the top Storage shelves IDs D1, D2, and D3 are assigned from the left of the eyes (bottom stage). Each storage shelf A1 or the like is attached with an RF-ID (Radio Frequency IDentification) tag-enclosed shelf label 13 and stores each storage shelf ID.

  On the other hand, the molds X stored in the storage shelves A1 and the like are carried on the table S. An IC tag reader / writer (not shown) is mounted on the table S. This IC tag reader / writer reads the mold ID (mold identification information (resource identification information)) from the IC tag T attached to the mold X when the table S is stored in each storage shelf A1 or the like. The shelf ID of the storage shelf A1, etc. is read from the RF-ID tag-enclosed shelf label 13 affixed to each storage shelf A1, etc., and the mold ID and shelf ID are sent to the server 4 via a communication interface (not shown) and LAN2. Let it be transferred.

  Next, the molding machine A01 and the like will be described. FIG. 4 is an explanatory view showing the front of the molding machine shown in FIG. As described above, the molding machine A01 is equipped with the control device 7, the IC tag reader / writer 8, the speaker 9, the warning lamp 10, and the touch screen 11. An antenna 81 connected to the IC tag reader / writer 8 is installed in a range where it can communicate with the IC tags T1 and T2 of the molds X1 and X2 mounted on the molding machine A01. That is, the IC tag reader / writer 8 reads the mold ID from the IC tags T1 and T2 via the antenna 81 when the molds X1 and X2 are mounted on the molding machine A01, and assigns the mold ID to the control device 7. hand over. At this time, the control device 7 acquires the time of a clock (not shown) as a time stamp, associates it with the mold ID, and transfers it to the server 4.

  Further, the IC tag reader / writer 8 controls the information when the molds X1 and X2 are detached (removed) from the molding machine A01 and become out of the communication range of the antenna 81 with the IC tags T1 and T2. Pass to device 7. The control device 7 acquires the time of a clock (not shown) as a time stamp, and transfers it to the server 4 in association with the mold ID.

  Next, the configuration of the IC tag T attached to the mold X will be described. FIG. 5 is an explanatory diagram showing a configuration of an IC tag attached to a mold used in the embodiment. The IC tag T attached to the mold X includes an IC chip TC and an antenna TA. The IC chip TC includes a power supply unit TC1, a CPUTC2, a memory TC3, and a communication unit TC4. The antenna TA is connected in parallel to the power supply unit TC1 and the communication unit TC4. Therefore, the signal input from the antenna TA is received by the communication unit TC4. The power of the signal input from the antenna TA is used as power for the operation of the CPUTC2 across the power supply unit TC1. The memory TC3 is a non-volatile memory such as a flash memory. The mold ID is recorded in this memory. The RF-ID tag-enclosed shelf label 13 (see FIG. 3) has the same configuration.

  Here, with reference to FIGS. 1 to 4 as appropriate, the flow from delivery of a mold to disposal through maintenance will be briefly described. In the mold management center 1, when the ordered mold is delivered from a mold maker, an operator attaches an IC tag storing a predetermined mold ID to the mold. At this time, the registration of the mold ID to the IC tag attached to the mold may be performed using the IC tag reader / writer 47 of the server 4 or the IC tag reader / writer (not shown) of the mold warehouse 5. In the server 4, the mold ID, mold name, maintenance information (plan), and mold spec information stored in the IC tag are associated with each other and registered as mold detailed information.

  Next, as shown in FIG. 3, when the worker enters the mold into an appropriate position on the shelf 12 of the mold warehouse 5, an IC tag reader / writer (not shown) on the shelf 12, The mold ID and the shelf ID are read from the ID tag-enclosed shelf label 13 and linked to each other and sent to the server 4 via the LAN 3. In the server 4, the mold ID and the shelf ID are associated with each other, and further stored in the storage unit 43 as mold entry / exit information in association with the time of a clock (not shown).

  When a BOM or an instruction is issued according to the production plan, the worker takes out a necessary mold from the mold warehouse 5 as shown in FIG. At this time, the model number and model indicating the necessary mold are presented to the BOM as described later (FIG. 8). In the mold warehouse 5, an IC tag reader / writer (not shown) uses a mold ID and a shelf ID from an IC tag T of the mold X to be taken out and an RF-ID tag-enclosed shelf label in which the IC tag T is stored. Are sent to the server 4 via the LAN 3. Then, the server 4 searches the mold entry / exit information using the mold type or mold name or mold ID and the shelf ID as a key, takes out the corresponding mold entry / exit information, and displays the time of a clock (not shown). Is stored in the storage unit 43 as mold entry / exit information in correspondence with the extracted mold entry / exit information.

  Next, when the worker attaches the mold X (X1, X2) to the molding machine A01 as shown in FIG. 4, in the molding machine A01, the IC tag reader / writer 8 uses the IC tag T (T1, T2 of the mold X). ) Is sent to the server 4 via the LAN 6, 2, 3 in association with the time and molding machine ID at that time. Then, the server 4 assigns the time associated with the mold ID and the molding machine ID as the start time to the mold movement information and the mold history management information and stores them in the storage unit 43.

  When the molding of the product is completed, when the worker removes the mold X (X1, X2) from the molding machine A01 as shown in FIG. 4, the IC tag reader / writer 8 is moved to the mold X in the molding machine A01. The mold ID is read from the IC tag T (T1, T2), and the time and the molding machine ID are associated with each other and sent to the server 4 via the LANs 6, 2 and 3. Then, the server 4 assigns the time associated with the mold ID and the molding machine ID as the end time to the mold movement information and the mold history management information and stores them in the storage unit 43.

  Next, each information memorize | stored in the memory | storage part shown in FIG. 2 is demonstrated. Below, detailed mold information, mold entry / exit information, parts information (BOM), instructions (production instruction information), molding machine setting information, mold movement information, mold history management information, mold traceability information, product The defect information and the leveling rule information will be described in order.

  FIG. 6 is a table for explaining the detailed mold information. In the detailed mold information, a mold name, maintenance information (maintenance 1, maintenance 2, maintenance 3,...), A use prohibition flag, and mold specification information are associated with a mold ID. That is, when the mold ID is specified, the mold name, maintenance information, use prohibition flag, and mold specification information can be known. As the mold ID, the serial number of the mold maker or the management number on the use side is used. The mold name and the mold specification information are information provided from the mold manufacturer.

  The maintenance information represents the actual date and the scheduled date when the mold is periodically implemented. The use prohibition flag is, for example, a criterion for prohibiting use of a target mold when maintenance is not performed despite the scheduled maintenance date. Here, maintenance is performed when a predetermined period has elapsed (when a predetermined cumulative usage time (cumulative usage information) has elapsed). For example, maintenance is performed every four months. The scheduled maintenance date is updated with the date of receipt at that time as the actual date of maintenance when the product is received in the mold warehouse 5 after the maintenance is performed. Then, a date after a predetermined period, for example, four months from the actual date is set as a scheduled date for the next maintenance, and the scheduled date is added so as to be presented in a newly added column.

  The cumulative usage time may be the time from when the mold is mounted to the molding machine until it is removed, but the time when the molding machine is in operation and the mold is being used is timed. It may be. Further, instead of measuring the time during which the mold is used, the usage time of the mold may be calculated from the work start date and the completion date (planned) indicated in the instruction.

  Further, the maintenance information may be the number of shots of the mold instead of the date. In this case, the mold may be provided with an acceleration sensor, and the number of shots may be calculated from the change in acceleration of the acceleration sensor, or the number of shots may be counted by a counter (not shown) built in the molding machine. Further, the number of shots may be calculated by adding the number of production records of the instruction. In this case, the accumulated information is referred to as a cumulative use count (cumulative use information), similarly to the cumulative use time. However, it is preferable not to duplicate unique IDs.

  The mold ID may be given in advance to the IC tag itself. That is, when a unique ID is stored in advance in the IC tag, the unique ID may be read out and used as the mold ID.

  By the way, in the maintenance of the mold, for example, cleaning to remove the adhesion of the resin, build-up welding performed on the inner wall of the mold and the like, coating agent for the peeling part of the coating agent applied to the surface of the mold There is application of. In the case of this embodiment, it is preferable to perform maintenance of the IC tag such as the IC tag sticking state.

  In addition, as a damage form of a metal mold | die, a wear, seizing, a crack, a crease, a chip, a deformation | transformation etc. are mentioned as a lifetime factor (disposal factor) of a cold metal mold | die. The life factors of the hot mold include wear, heat check (thermal fatigue crack), cracking, chipping, deformation, and sag. In particular, in the case of a die-cast type, melting damage and the like can be mentioned. Therefore, these physical and chemical inspections are also included during maintenance.

  FIG. 7 is a table for explaining mold entry / exit information. In the mold entry / exit information, a mold name, an entry date, a time (entry), a shelf position, an exit date, and a time (exit) are associated with a mold ID. Therefore, even in this mold entry / exit information, if the mold ID is specified, other pieces of information can be referred to, and each information can be updated. At the time of warehousing, the mold ID, the mold name, the warehousing date, the time, and the shelf position are associated with each other and stored. Moreover, at the time of delivery, the delivery date and time (shipping) corresponding to the mold ID are stored in association with each other.

  The mold entry / exit information may be updated each time the mold is entered / exited, or may be stored in a new record each time and stored as a history. Moreover, when storing in a different shelf next time, it may be updated to a new shelf position, and the warehousing date and time (warehousing) may be updated. In this case, the data in the column of shipping date and time (shipping) is updated to Null.

  FIG. 8 is a table for explaining member product information (BOM). This BOM associates product names, materials (names), model numbers and models of molds (upper) and molds D (lower). Here, the material is a work, and is formed into a product by a mold. For example, when the product is a resin cup, the material (work) is a resin plate. Since the model number and model of the mold are associated with the BOM in this way, it is possible to refer to the detailed mold information (FIG. 6) associated with the model number and model of the mold. In addition, here, the case where the mold model number and model are associated with the BOM is shown, but the mold ID may be associated with the BOM.

  FIG. 9 is a table for explaining instruction information (production instruction information). In the information of this instruction (production instruction information), a production instruction number (instruction ID), a product ID, a product name, the number of production instructions, the number of production results, and the completion date are associated with each other. Here, since the production performance number is shown, the performance of the mold can be expressed by the product of the number of instruction production personnel and the number of shots per product. Moreover, as described above, the END-START (Time) instruction work time such as the start date and time and the end time of the target instruction may be associated as a record. Although details are omitted here, the actual number of shots counted by a molding machine or the like can be acquired and used as the result of the mold.

  The product ID of the instruction and the product ID of the BOM are linked. That is, if the instruction is specified, the BOM is also specified, and if the BOM is specified, the instruction is specified. By the way, the information of this instruction is printed out or presented on the screen in a predetermined format. The model may be any type, or this table type.

  FIG. 10 is a table for explaining molding machine setting information. In this molding machine setting information, setting values of various setting information (such as XXXX) are associated with the molding machine ID. For example, it is a value such as pressure applied to the mold. The molding machine setting information may be automatically sent from the server 4 side to the molding machine during work on the molding machine, or may be sent according to an instruction from an operator.

  FIG. 11 is a table for explaining mold movement information. In this mold movement information, an instruction ID, a molding machine (molding machine ID), an operation date, a start, an end, and an operation time are associated with the mold ID. This mold movement information is the time (operating time) from when a mold for each molding machine is mounted to when it is removed from the mold warehouse 5 when it is reused by a plurality of molding machines. Is for recording. Here, the operation time is calculated from the operation date and the start (time) time stamp and the end (time) time stamp.

  FIG. 12 is a table for explaining mold history management information. This mold history management information associates the start (time) and end (time) of the status with daily and cumulative totals when a status such as operation or inspection occurs for each mold ID. It is. “Cumulative” is an abbreviation for cumulative usage time (cumulative usage information).

  FIG. 13 is a table for explaining the traceability information of the mold for each instruction. In this traceability information, a molding machine ID, a used mold name, a mold ID, a use start date / time Start, and a use start date / time End are associated with an instruction ID. The traceability information can be generated by extracting necessary information from the instruction (FIG. 9), mold movement information (FIG. 11), and mold history management information (FIG. 12). That is, traceability information is generated by following these pieces of information when any defect occurs in the product.

  FIG. 14 is a table for explaining product defect information. This product defect information associates a product type (product ID), a defect code, and an instruction ID. It should be noted that the product type is engraved on the product. In this case, the product type of the product defect information is input by an operator who has read the stamp by operating a keyboard or the like (not shown). The same applies to defective codes. The product model is a product ID.

  Therefore, the instruction ID is obtained by referring to the information of the instruction (see FIG. 9) associated with the product ID and extracting the corresponding value. In addition, when the label which printed the product type is affixed on the product, when storing in the IC tag affixed on the product, the barcode label which assigned the product type may be affixed on the product. Then, by generating the traceability information (FIG. 13) using the instruction ID of the product defect information as a key, it is possible to trace from which mold the target product is manufactured. it can.

  FIG. 15 is a table for explaining leveling rule information. This leveling rule information (priority reference information) is a rule for instructing which one of the same molds should be used with priority, and is associated with the mold IDs of the same model. Examples of the leveling rule information include a case where “priority is given to those with a short cumulative usage time”, a case where “priority is given to a thing with a low cumulative use”, and a case where “priority is given to the latest maintenance”. The leveling rule information can be changed by an operator.

  Next, a description will be given of the relationship between the time of stamping and attaching the mold to the molding machine in the case of cumulative time management. FIG. 16 is a time chart for explaining the relationship between the result of attaching / detaching the mold to / from the molding machine and the time stamp in the case of cumulative time management. Here, the case where the molds of ID001, ID012, and ID013 are attached to and detached from the molding machine A01 and the case where the molds of ID005 and ID001 are attached to and detached from the molding machine A02 are shown. The horizontal axis is time (hereinafter referred to as “absolute time”) based on Coordinated Universal Time (UTC).

  Therefore, by recording a time stamp when the mold is mounted and recording a time stamp when the mold is detached, it is possible to calculate the accumulated time that the mold will have been operated on the molding machine. In other words, the time from the mounting of the mold to the removal is taken as the operating time of the mold. Although not shown, it is assumed that the operations of the molding machines A01 and A02 using the respective molds are in accordance with different instructions.

  Next, the causal relationship obtained by workability analysis will be described. FIG. 17 is a diagram illustrating an example of a causal relationship graph obtained by workability analysis. Here, the causal relationship of the mold ID 001 is shown. The horizontal axis represents absolute time, and the vertical axis represents cumulative usage time. The same applies if the cumulative number of uses is plotted on the vertical axis. In this graph, the cumulative usage time for the mold ID 001 is plotted by plotting the cumulative usage time for the mold ID 001 from the mold movement information of FIG. 11 and the mold history management information of FIG. In addition, the maintenance results are presented based on the detailed mold information shown in FIG. Also, the maintenance limit (planned) is assumed to be every 4 months, for example. This is also based on the detailed mold information in FIG.

  Now, in this cumulative usage time trend, the product quality information (inspection information) is displayed by feeding back the order information where the product defect due to the mold quality has occurred (or is likely to occur) It is. This hatching indicates a period (absolute time) during which the product is manufactured based on the instruction with the instruction ID included in the product defect information of FIG. That is, the product manufactured by the mold used for this period is highly likely to be defective.

  Further, in this graph, the instruction ID used at the corresponding absolute time is added on the horizontal axis. From this cumulative usage time trend, it can be seen that the work has been started at the instruction 0023, that the first maintenance has been performed during the use of the instruction 005, and the like. In particular, when hatching is involved, it can be seen that the instruction in which the product defect has occurred is ID0153. Accordingly, as described with reference to FIG. 9, since the actual result can be understood by the instruction, it can be estimated that the product manufactured by the instruction is highly likely to be defective. In addition, since the occurrence of product defects can be grasped in the cumulative usage time trend in this way, it can be used for quality improvement activities such as a review of the maintenance cycle.

  When such a causal relationship graph is presented on the screen or printed out, the worker knows, for example, that maintenance has not been performed properly at the maintenance limit (planned). It will be possible to review.

  Next, the relationship between the mold mounting / demounting results to the molding machine and the time stamp in the case of cumulative number management will be described. FIG. 18 is a time chart for explaining the relationship between the result of attaching / detaching the mold to / from the molding machine and the time stamp in the case of cumulative number management. Also in this case, the case where the molds of ID001, ID012, and ID013 are loaded into and removed from the molding machine A01 and the case where the molds of ID005 and ID001 are loaded into and removed from the molding machine A02 are shown. The horizontal axis is absolute time.

  In this case, the number of shots after mounting the mold is calculated from the instruction. For example, in the case of an ID001 mold mounted on the molding machine A01, when work is performed based on two instructions A001 and A003, the number of production instructors specified in the instruction A001 and the instruction A003 The total number of production instructors specified in can be calculated as the number of shots. The actual state of the number of shots may be counted by monitoring the operating state of the molding machine A01.

  Next, the concept of an instruction method for prohibiting the use of a predetermined mold will be described. FIG. 19 is a time chart for explaining the relationship between the attachment / detachment of the mold and the alarm. When the server 4 accepts the delivery information from the molding machine A02 side when the mold ID 001 is mounted on the molding machine A02, the CPU 41 refers to the use prohibition flag included in the mold detailed information of FIG. When the use prohibition flag is set (“×” in FIG. 6), a command for instructing the use prohibition is generated, and the command is sent to the molding machine A02 side. Then, in the molding machine A02, an alarm is issued from the speaker 9, a warning light 10 is notified, or a message is presented on the touch screen 11. Note that when the mold X is delivered from the mold warehouse 5, the command may be sent to the mold warehouse 5 side. In this case, an alarm may be issued from a speaker (not shown) provided on the mold warehouse 5 side.

  Next, the concept of the leveling rule will be described. FIG. 20 is a diagram for explaining the concept of the leveling rules. In the mold management center 1, for example, when the server 4 receives a borrowing request for a mold A, the server 4 extracts the detailed mold information by referring to the detailed mold information (FIG. 6). Then, using the mold ID included in the corresponding mold detailed information as a key, the corresponding mold history management information is extracted, and the accumulated usage time of each mold is extracted. Further, the server 4 extracts leveling rule information including the corresponding mold ID as a key. Then, when the leveling rule is “prioritize from the one with a short cumulative usage time”, the server 4 compares the cumulative usage times of the respective mold IDs, and selects the mold with the corresponding ID 011. Then, the server 4 presents the selection result on a display (not shown), notifies the worker, and lends the mold of ID001 of type A001. Therefore, the use of the same type of mold can be leveled.

  Next, the processing of the server 4 will be described in further detail according to the flowcharts of FIGS. 21 to 24 and referring to FIGS. 1 to 20 as appropriate. The explanation will be divided into the process of mold delivery and receipt, the delivery of the mold, the operation of the mold, and the work analysis process of the mold.

  FIG. 21 is a flowchart showing processing at the time of delivery and receipt of a mold. First, in the server 4, even if an IC tag is attached to the mold, it is unknown whether or not the mold ID tag is registered, so the CPU 41 checks whether or not the mold ID exists. (Sa1). If there is a mold ID (Yes in Sa1), the CPU 41 indicates that the mold has been received after finishing the processing in the molding machine or has been returned after the maintenance has been completed. The warehouse entry / exit information (FIG. 7) in the storage unit 43 is updated (registered) to the receipt information sent from the mold warehouse 5 side together with the mold ID (Sa9). In the case of after maintenance, the CPU 41 also updates the maintenance information of the mold detailed information (FIG. 6).

  On the other hand, when there is no mold ID (No in Sa1), the CPU 41 gives a mold ID (Sa2) to indicate that the mold is newly delivered from a mold maker (Sa2). The mold ID is registered in the pasted IC tag (Sa3). Then, the CPU 41 reads the mold specification information provided by the mold manufacturer from a storage medium or the like (not shown), associates the mold specification information with the mold ID (Sa4), and further uses the mold. Association (association with absolute time) with information (maintenance schedule (limit)) is performed (Sa5), and is registered in the storage unit 43 as mold detailed information (Sa6).

  Subsequently, the CPU 41 searches the detailed mold information in the storage unit 43 to determine whether there is a mold of the same model (Sa7). Then, when there is no mold of the same type (No in Sa7), the CPU 41 associates the given mold ID with the warehousing information sent from the mold warehouse 5 side as the warehouse entry / exit information. Register in the storage unit 43 (Sa9). On the other hand, if there is a mold of the same type (Yes in Sa7), the CPU 41 allows the user to input the leveling rule, sets it as leveling rule information (Sa8), and registers it in the storage unit 43. Then, the warehousing information sent from the mold warehouse 5 side is associated with the assigned mold ID and registered in the storage unit 43 as warehouse warehousing / exiting information (Sa9).

  FIG. 22 is a flowchart showing a process when the mold is delivered. In the server 4, when the CPU 41 acquires the mold ID read from the target IC tag on the mold warehouse 5 side together with the delivery information (Sb 1), the detailed mold information stored in the storage unit 43 (FIG. 6). ) Is searched using the mold ID as a key, and the presence or absence of the same type of mold is determined (Sb2). And CPU41 moves a process to Sb5, when there is no metal mold | die of the same model (Sb2 No). In addition, when there is a die of the same type (Yes in Sb2), the CPU 41 acquires leveling rule information from the storage unit 43 (Sb3), and performs the leveling rule as described with reference to FIG. Accordingly, the mold is selected, information such as the selected mold ID is presented (Sb4), and the process proceeds to Sb5. The information may be presented on the console unit 48 on the server 4 side or on a display (not shown) on the mold warehouse 5 side.

  Subsequently, the CPU 41 acquires a use prohibition flag from the detailed mold information (Sb5), and determines whether or not the use is prohibited (Sb6). When the use is prohibited (Yes in Sb6), the CPU 41 outputs an alarm (Sb7) and ends the process as described with reference to FIG. On the other hand, when the use is not prohibited (No in Sb6), the CPU 41 registers (updates) the delivery information in the warehouse entry / exit information (Sb8).

  FIG. 23 is a flowchart showing a process when the mold is operated. In the server 4, the CPU 41 acquires the time when the mold is mounted on the molding machine as a time stamp from the molding machine side, and acquires the time stamp from the mold movement information (FIG. 11) and the mold history management information ( (Sc1). Further, the CPU 41 acquires the time when the mold is detached from the molding machine as a time stamp from the molding machine side, and acquires the time stamp from the mold movement information (FIG. 11) and the mold history management information (FIG. 12). (Sc2).

  FIG. 24 is a flowchart showing the workability analysis process of the mold. In the server 4, the CPU 41 acquires product defect information (FIG. 14) in accordance with the operation of the operator's keyboard 46 and the like (Sd1). Note that the instruction ID in the product defect information is acquired in the next step Sd2 in this step Sd1. That is, the CPU 41 searches for information on the instruction (production instruction information) using the product ID of the product defect information as a key, and acquires information on the corresponding instruction (Sd2). And CPU41 registers instruction ID obtained here in the column of instruction ID of product defect information.

  Subsequently, the CPU 41 searches the BOM (FIG. 8) using the instruction ID as a key, and acquires the corresponding BOM (Sd3). Then, the CPU 41 extracts the mold ID included in the acquired BOM and determines the mold ID (Sd4). Next, the CPU 41 generates the traceability information of the mold as shown in FIG. 13 from each acquired information (Sd5), for example, information on the secular change (cumulative usage time) from the traceability information for all the instructions. , Information related to the causal relationship graph as shown in FIG. 17 (causal relationship information) is generated, and the causal relationship graph is presented to the console unit 48. In addition, the CPU 41 appropriately stores the causal relationship information in the storage unit 43 or the like.

  FIG. 25 is an explanatory diagram of an example of information presentation. When presenting the causal relationship graph to the console unit 48 in the process according to the flowchart of FIG. 24, product defect information (a), traceability information (b), mold detailed information (c), molding machine setting information (d) May be presented.

  As described above, in this embodiment, since traceability can be grasped from the accumulated usage time (work history) of the mold, the maintenance time of the mold can be appropriately determined. Therefore, since the maintenance can be optimized, it is possible to manufacture a normal product with reduced loss cost derived from resources. Therefore, it becomes possible to improve the management accuracy of molds and facilities, improve work productivity, and prevent problems. In addition, since the mold is selected according to the leveling rule, a plurality of molds can be used evenly.

  In this embodiment, the server 4 of the mold management center 1 has been described as executing the process. However, the worker stores various types of information in a portable terminal that the portable terminal possesses, and the portable terminal is the same as the server 4. You may make it perform the process of. Further, the portable terminal may be provided with an IC tag reader / writer, and each portable terminal may read each ID from an IC tag or RF-ID tag-enclosed shelf label attached to a mold.

  In this embodiment, the case where only the mold ID is registered in the IC tag has been described. However, when the IC tag has a large capacity, not only the mold ID but also the mold of the target mold. You may make it memorize | store all the detailed information.

  In this embodiment, the case where the mold ID is registered in the IC tag attached to the mold has been described as an example. However, a barcode may be used, or the mold ID stamped on the mold. May be read using a character recognition device, or a stamped mold ID may be manually input by an operator.

  Further, in this embodiment, the mold is described as an example. However, the resource is not limited to the mold as long as it is a resource with aging. In addition to the mold, the resource may be, for example, an electric tool, a molding machine (press machine), or a worker (person). Among these, in the case of a worker (person), an element of secular change can be treated as skill / skill level. For example, in the case of work that requires high skill / skill, the work time associated with the worker ID is compared, and a highly skilled worker is assigned as a worker (such a leveling rule). You can).

  Further, in this embodiment, the case where the molds are interchanged between the buildings A or the like has been described, but (1) the molds are interchanged between factories in the same company, or (2) the group company or the rental company. May lend a mold. In FIG. 1, in the case of (1), building A etc. are replaced with factory A etc., and in the case of (2), building A etc. are replaced with company A etc. be able to.

It is a block diagram which shows the structure of the workability | operativity management system of embodiment. It is a block diagram which shows the structure of the server of embodiment. It is explanatory drawing which shows an example of the shelf which accommodates a metal mold | die in the metal mold | die warehouse shown in FIG. It is explanatory drawing which shows the front of the molding machine shown in FIG. It is explanatory drawing which shows the structure of the IC tag attached to the metal mold | die used in embodiment. It is a table explaining detailed mold information. It is a table explaining mold entering / exiting information. It is a table explaining member article information (BOM). It is a table explaining order information (production instruction information). It is a table explaining molding machine setting information. It is a table explaining mold movement information. It is a table explaining mold history management information. It is a table explaining the traceability information of the mold for each instruction. It is a table explaining product defect information. It is a table explaining leveling rule information. It is a time chart explaining the relationship between the die loading / unloading result with respect to the molding machine in the case of accumulation time management, and a time stamp. It is a figure which shows an example of the causal relationship graph obtained by workability | operativity analysis. It is a time chart explaining the relationship between the die loading / unloading result with respect to the molding machine in the case of accumulation frequency management, and a time stamp. It is a time chart explaining the relationship between mold attachment / detachment and an alarm. It is a figure explaining the concept of a leveling rule. It is a flowchart which shows the process at the time of delivery and warehousing of a metal mold | die. It is a flowchart which shows the process at the time of delivery of a metal mold | die. It is a flowchart which shows the process at the time of operation | use of a metal mold | die. It is a flowchart which shows the workability | operativity analysis process of a metal mold | die. It is explanatory drawing which shows the example of presentation of information.

Explanation of symbols

1 Mold Management Center 4 Server 5 Mold Warehouse 7 Control Device 8 IC Tag Reader / Writer 9 Speaker 10 Warning Light 11 Touch Screen 12 Shelf 13 Tag Enclosed Shelf Label 41 CPU
42 Memory 43 Storage unit 44 Network interface unit 45 Input / output interface unit 46 Keyboard 47 IC tag reader / writer 48 Console unit 100 Workability management system

Claims (3)

A workability management system that stores work history of a resource that performs work on a work as work history information and manages the information of the resource,
Storing resource identification information for identifying the resource and the work history information in association with each other in a storage medium;
When a change occurs in the work history information, the work history information corresponding to the resource identification information is extracted from the storage medium, the change content is updated and stored in the storage medium,
And, from the product identification information of the product defect information stored in the storage medium, the instruction information related to the product identification information included in the production instruction information and the component information stored in the storage medium is acquired and the resource determining the identification information, by using the work history information,
Workability management system characterized in that it comprises a processing unit for displaying on the resource identification information feedback to the display means finger view information product failure occurs due to resource quality by adding the cumulative use time trends of resources . A workability management method for storing a work history of a resource that performs work on a work as work history information and managing information on the resource,
Computer
Storing resource identification information for identifying the resource and the work history information in association with each other in a storage medium;
When a change occurs in the work history information, the work history information corresponding to the resource identification information is extracted from the storage medium, the change content is updated and stored in the storage medium,
And, from the product identification information of the product defect information stored in the storage medium, the instruction information related to the product identification information included in the production instruction information and the component information stored in the storage medium is acquired and the resource determining the identification information, by using the work history information,
Processing of displaying on the resource identification information feedback to the display means finger view information product failure occurs due to resource quality by adding the cumulative use time trends of resources,
A workability management method characterized by executing. A workability management program for storing work history of a resource that performs work on a work as work history information, and managing information on the resource,
On the computer,
Storing the resource identification information for identifying the resource and the work history information in association with each other in a storage medium;
When the work history information has changed, extracting the work history information corresponding to the resource identification information from the storage medium, updating the change content, and storing it in the storage medium; and
Instruction information related to the product identification information included in the production instruction information and the component information stored in the storage medium is acquired from the product identification information of the product defect information stored in the storage medium, and the resource identification information determines, using the work history information is displayed on the resource identification information feedback to the display means finger view information product failure occurs due to resource quality by adding the cumulative use time trends of resources Workability management program for executing steps.

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