JP4904839B2 - Mold management system and mold management method using this mold management system - Google Patents

Description

  The present invention relates to a mold management system and a mold management method using the mold management system of the mold management system.

  In recent years, use of a wireless ID tag has been proposed for die management (see, for example, Patent Document 1).

The conventional proposal is to make a small hole in the mold, put a wireless ID tag in it, write various information to this ID tag, and centrally manage the mold by wireless communication with the ID tag It is what you say.
JP 2003-164924 A

  There are various types of molds. For example, since a mold used for a forging press is exposed to a high temperature (for example, 200 ° C. or more) during use, if an ID tag is directly embedded in the mold as in the prior art, it may be broken by heat during use. Is expensive.

  In addition, since the forging press is subjected to a large vibration during pressing, the ID tag may not be able to withstand the vibration. Note that the influence of vibration is not limited to the forging press, but also occurs in forming and die cutting, and therefore, there is a possibility that defects may occur due to vibration in embedding the ID tag.

  In addition, as a method of using a mold, there is a process of using a plurality of molds in one process. In such a case, if an ID tag is embedded in each mold, reading of information from the mold is rather performed. It can be troublesome. For example, when reading and writing information when a mold is set in a press machine, it is generally prohibited for people to approach the press machine, so hold a reader near each mold before or after setting the mold. It is inconvenient to go and read and write information.

  For these reasons, it is currently difficult to use an ID tag embedded in a mold.

  Therefore, an object of the present invention is to provide a mold management system and method for use in mold management without embedding an ID tag in the mold.

In order to achieve the above object, the present invention relates to a wireless ID tag that is associated with each of a plurality of dies used in one set and moves together with the movement of the dies, and is provided in a plurality of steps, wherein the wireless Installation of reading means for reading information of an ID tag, an identification number for identifying the wireless ID tag, information on the mold associated with the wireless ID tag, and reading means for reading information from the wireless ID tag possess a data management unit that manages association with the process that is, the said one set is added parent ID tag consisting another wireless ID tags and the wireless ID tag, the data management means is a die management system characterized in that it stores the parent ID tag identification number and by association with the identification number of the wireless ID tag of the one set

  Moreover, this invention for achieving the said objective is a metal mold | die management method using the said metal mold | die management system, Comprising: The information memorize | stored in the said radio | wireless ID tag and parent ID tag mounted on the said reading means And the identification number of the wireless ID tag that has been read correspond to the information of the mold associated with the wireless ID tag of the identification number and the process in which the reading means that has read the information is installed And a step of determining whether or not all of the wireless ID tags associated with the identification number of the parent ID tag are included without excess or deficiency. It is a management method.

  According to the present invention, a wireless ID tag is associated with each of a plurality of molds used in one set, moved between processes together with the set of molds, and an identification number for identifying each wireless ID tag, wireless Since the information on the mold associated with the ID tag and the process of reading the information from the wireless ID tag are associated with each other and managed, the information on the plurality of molds moving in a set can be individually managed. One set can be managed.

  Further, since one set of wireless ID tags is further provided with a parent ID tag, the identification number of this parent ID tag and the identification number of each set of wireless ID tag are stored in association with each other. Excess or deficiency of wireless ID tags associated with a plurality of molds in the set can be easily verified.

  First, the management of the mold will be described taking a mold used in the forging press process as an example.

  In many cases, a mold used in the forging press process is a single press process, that is, a plurality of molds are used in manufacturing one workpiece. In addition, the degree of wear varies depending on various use conditions and use environments such as the shape and the contact point with the workpiece. For this reason, even if it is a metal mold | die used at 1 process, since the lifetime of each metal mold | die differs, each metal mold | die is produced and changed in a different time separately.

  Therefore, even if there are a plurality of dies in such a forging press, they are used in a specific process and need to be always managed as one set. It is also necessary to manage the history from the manufacture to the end of its life.

  The present embodiment to which the present invention is applied is a mold management system capable of managing a plurality of molds used as one set from the manufacture to the lifetime.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of a mold management system.

  The mold management system 1 includes a data server 11 (data management means) that stores and accumulates mold management data, a wireless ID tag (hereinafter referred to as an ID tag 12) that is moved together with the mold, and an ID tag 12 And a card reader (reading means) for reading the data. Here, the card reader is the first card reader 31 disposed in the material receiving step # 1 for receiving the material to be a mold, and the second card disposed in the mold step # 2 for manufacturing and repairing the mold itself. The fourth card reader placed in the vicinity of the reader 32, the third card reader 33 arranged in the inspection process # 3 for inspecting the finished mold, and the press machine process # 4 forging using the mold. 34.

  The data server 11 stores various information for each mold in order to manage the history of each mold. The stored information (referred to as management data) includes, for example, the identification number of the ID tag 12, the current process of the ID tag 12, the identification number and name of the mold managed by the ID tag 12, and the ID tag The usage history of the mold managed by 12, the identification number of the workpiece manufactured by the mold managed by the ID tag 12, and the like.

  The identification number of the ID tag 12 is an identification number (or identification code) for identifying each ID tag 12 to be moved together with the mold. The current process is a process (or a place) where the card reader that reads the information of the ID tag 12 is installed. The identification number and name of the mold are the identification number and name assigned to the mold managed by the ID tag 12. The use history is stored in the press machine and stored how many times (for example, the number of pressed workpieces). The workpiece identification number is an identification number of a workpiece manufactured as one set as described later (the workpiece identification number may be a drawing number of the workpiece).

  In addition, the management data includes the material identification number, mold design drawing identification number, mold production date and time, whether or not the mold has been repaired (and the date if repaired), and repaired. In the case of a mold, the number of times it has been used after repair (that is, for a mold that has been repaired, the usage history is not only the number of presses that were used with a new mold after it was manufactured, but also after the repair was performed. The number of presses may be stored).

  The data server 11 is further connected to another computer 51 (which is one of information browsing means) capable of browsing information managed by the data server 11 via a network. Therefore, the other computer 51 can browse the various information described above. In addition, some or all of the above-described information can be taken out and rewritten from a part of the other computer 51 for management.

  The ID tag 12 may be generally used, and is a card-like one having a wireless communication function, and is called RFID (Radio Frequency Identification). RFID uses a coiled wiring embedded in a card to receive power from an external radio frequency, and to read / write data by an external reader / writer device in a non-contact manner by the radio frequency. Done. The RFID incorporates a semiconductor chip on which a minute controller and a memory for this purpose are formed.

  There are various types of such RFIDs. Preferably, as shown in FIG. 2, a stacked tag that can read information on each card in a state where a plurality of cards (ID tag 12) are stacked. Is preferred. This is because information can be read out in a state where a plurality of cards (ID tag 12) corresponding to one set of molds are put on the tray-type card reader 13 as described later.

  In this embodiment, the ID tag 12 is moved together with each die corresponding to each die. For this purpose, the ID tag 12 is placed in a bag together with, for example, a form for mold management, and each process is moved along with the movement of the mold.

  The information stored in such an ID tag 12 only needs to have an identification number of the ID tag 12 for identifying each ID tag 12, and this is the same as the identification number of each ID tag 12 as described above. This is because information on each mold is managed in the data server 11 in correspondence. Of course, other information may be stored in the ID tag 12. For example, basic information on a mold associated with the ID tag 12 may be stored. Basic information includes the identification number of the mold itself, the material type of the mold, the type and number of the press machine used, the drawing number of the mold, the identification number of the workpiece manufactured by the mold and the drawing number, etc. is there.

  Further, the ID tag 12 is preferably of a type in which characters can be written on its surface so that its identification number, mold identification number, mold name, etc. can be seen visually.

  The card reader is a device that reads data from the ID tag 12. Since the ID tag 12 has a card shape, it is called a card reader.

  As described above, at least one card reader is prepared for each process. The card reader used here is a tray-type card reader (tray-type card reader 13) as shown in FIG. The tray type card reader 13 incorporates an antenna that applies a radio frequency to the coiled wiring embedded in the ID tag 12 (card), and a controller that reads information in the card from a radio frequency signal received from the antenna. (Both not shown).

  The tray-type card reader 13 directly reads the contents of the card data in response to a data read command from the data server 11 and transmits it to the data server 11. The connection between the tray-type card reader 13 and the data server 11 may be wired or wireless.

  Each step # 1 to # 4 is provided with a terminal 100 (consisting of a personal computer or the like, which also functions as information browsing means) as necessary. This terminal 100 is connected to a tray-type card reader 13 in each installed process. The ID tag information can be read locally from the terminal 100.

  The terminal 100 is connected to a card writer (not shown) for writing information to the ID tag 12 as necessary. In particular, in the material accepting step # 1, in order to associate the accepted material with the ID tag 12, the terminal 100 and the card writer Necessary. Note that the card writer may be provided separately, but may be shared by the tray-type card reader 13.

  Further, each terminal 100 is connected to the data server 11 in the same manner as the other computer 51, and not only the information of the ID tag 12 in its own process but also other ID tags 12 stored in the data server 11. Information can be retrieved at any time. In addition, each terminal 100 is configured to display a warning or the like at each terminal 100 according to an instruction from the data server 11.

  In the present embodiment, such a terminal 100 is not necessarily used as the present invention because it is not used for reading information of the ID tag 12 to be stored in the data server 11. However, the information of the ID tag 12 may be once read by a personal computer or the like as such a terminal, and then transmitted to the data server 11 from the terminal and stored.

  Here, the forging die will be briefly described.

  FIG. 4 is a schematic view showing an outline of a forging die.

  As is well known, the forging die is installed and used in a forging press machine. As shown in FIG. 4, the forging die is divided into a plurality of parts for forming one workpiece. And each metal mold 201-205 divided into plurality is formed from the raw material separately, respectively. Moreover, since each metal mold 201-205 differs in the contact condition with a workpiece | work (part raw material etc. formed by forging) from the difference in the shape, the extent of deterioration, such as abrasion, depends on a specification history (mainly the number of presses). Different. For this reason, repair or replacement is performed for each of the molds 201 to 205 when deterioration occurs.

  On the other hand, although a plurality of dies are used for forming one workpiece, if the workpieces to be manufactured are different, each die is exchanged as one set for the forging press machine. Become.

  Therefore, the management of the mold requires management as one set for one work together with the history for each mold.

  For this reason, in this embodiment, one ID tag 12 is associated with each of the molds 201 to 205, and as shown in FIG. In 210, each set is managed collectively. The card case 210 is, for example, a plastic case or a vinyl case, and can be opened and closed by a fastener or a button. The ID tag 12 inside can be taken out at any time.

  Further, a parent ID tag 211 is further added to the card case 210 in order to manage the set. The parent ID tag 211 is associated with a work manufactured by a mold set corresponding to each ID tag 12 housed in the case, and is also managed by the data server 11. Accordingly, in the data server 11, the identification number of the parent ID tag 211 is associated with the identification numbers of the plurality of ID tags 12 managed by the parent ID tag 211 and registered as management data of the parent ID tag 211. deep.

  The card case 210 is configured such that the parent ID tag 211 can be detachably stored separately from the ID tag 12 therein. For this purpose, for example, it is convenient to attach a dedicated pocket or the like for inserting the parent ID tag 211 to the card case 210.

  As the management data of the parent ID tag 211, in addition to this, for example, data relating to the set such as an identification number of a workpiece manufactured in the set may be registered. The data as one set may be written in the parent ID tag 211 itself, or may be stored in the data server 11 and read from the identification number of the parent ID tag 211 or the like. Good.

  When the data server 11 reads the information of the parent ID tag 211, the data server 11 reads the information of each ID tag 12 stored in the card case 210 with the parent ID tag 211 together. Therefore, it is possible to know which ID tag 12 manages the mold used in the set from the information of the read parent ID tag 211. If one (or several) of the plurality of ID tags 12 in the set does not exist as the information of the ID tag 12 read together with the information of the parent ID tag 211, one set of molds It can be seen that there is no actual mold managed as. Conversely, when the information of the ID tag 12 unrelated to the mold obtained from the information of the parent ID tag 211 is read, it can be seen that there is a mold unrelated to the set.

  Next, the operation of this embodiment will be described.

  FIG. 5 and FIG. 6 are flowcharts showing the mold management processing procedure.

  Here, in the press machine process # 4, a process when the mold is replaced in the press machine is shown. The same applies to the other steps # 1 to # 3.

  First, the mold is set on the press machine, and a plurality of ID tags 12 to be moved together with the mold are set on the tray-type card reader 13 (S1). This step is performed by a worker. That is, the plurality of ID tags 12 are moved together with the card case 210 with the parent ID tag 211 as described above, and the entire card case 210 is placed on the tray type card reader 13.

  The data server 11 reads the information of the set ID tag 12 (S2). At this time, the information of the parent ID tag 211 is read together with the information of each ID tag 12 corresponding to each mold. For reading the ID tag information, for example, the data server 11 reads the card reader in each process by performing a rank reading scan together with a series of processes described here. Instead of the sequential scan reading as described above, a reading instruction may be issued from each step each time it is set.

  Subsequently, the data server 11 searches the storage area in the data server 11 using the identification numbers of all the read ID tags 12 as keys, and sets the item of the current process of the management data having the identification numbers as ID tag information. Is rewritten to the number of the process that has been read (S3).

  Subsequently, the data server 11 collates the read information of the parent ID tag 211 and the plurality of ID tags 12 to verify whether there is an excess or deficiency as a set of molds (S4).

  As a result of the verification, if the information of the parent ID tag 211 includes an extra ID tag 12 (S5: Yes), the information of the read extra ID tag 12 is displayed together with a warning to that effect. (S51). This display is performed on each terminal 100 in the process managed by the data server 11. When this warning is displayed, the worker on site receives the warning and removes the extra ID tag 12 and checks the presence of an actual mold from the information of the extra ID tag 12.

  As a result of the verification, if the ID tag 12 is insufficient with respect to the information of the parent ID tag 211 (S6: Yes), the information of the insufficient ID tag 12 is displayed together with a warning to that effect (S61). In this case, the worker on site receives a warning display, inspects whether there is an actual mold from the information of the shortage ID tag 12, accesses the data server 11 from the terminal 100, and exists the shortage ID tag 12. Check the position. The confirmation of the shortage ID tag 12 may be automatically performed when it is determined that the shortage ID tag 12 is present, and the location of the shortage ID tag 12 may be displayed together with the warning of the shortage ID tag 12.

  After the warning display (S51, S61), the process returns to step S2 and continues.

  On the other hand, if there is no excess or deficiency of the ID tag 12 (S5: No, S6: No), then the data server 11 sets the management data usage history item having the ID number of the read ID tag 12 to the press machine. Are sequentially rewritten according to the number of presses (S7). Note that the number of presses is usually obtained by counting the number of presses performed by the press machine, and the data may be acquired from the press machine.

  If some of the dies are exchanged (S8: Yes), the data server 11 discards the identification number of the ID tag 12 that manages the old dies from the management data of the parent ID tag 211. Then, the identification number of the ID tag 12 for managing the new mold is written (S9). This process is performed by identifying the ID tag 12 of the ID tag 12 that has disappeared from among the ID tags 12 set in the tray-type card reader 13 by using an instruction input to the effect that the mold has been exchanged by a worker. The number is discarded, and the identification number of the ID tag 12 newly set in the tray type card reader 13 is written.

  Thereafter, the process returns to step S2, and ID tag information is read.

  According to the embodiment described above, the ID tag 12 (card) corresponding to each mold is moved together with the set of molds composed of a plurality of molds, while the management data of the mold is Since it is managed in the database together with the identification number of each ID tag 12, the history of each mold, the current process, etc. from the database are received from other computers 51 connected to the database as well as the terminal 100 of each process. You can see it anytime.

  Further, although the ID tag 12 itself is moved together with the mold, the ID tag 12 is not in contact with the mold itself, and therefore is not affected by the heat received by the mold.

  Further, in the present embodiment, by using the stacked tag and the tray type card reader 13 on which the stacked tag is placed, the information from the ID tag 12 can be obtained simply by placing the ID tag 12 on the tray type card reader 13 together with the form moved together with the mold. Therefore, the ID tag 12 itself can be easily managed and handled without any special work.

  A plurality of ID tags 12 to be moved together with a set of molds are stored in one card case 210, and a parent ID tag 211 is attached to the card case 210, and the data server 11 has a parent ID tag 211 within the card case. Since the plurality of ID tags 12 are managed in association with each other, the information of the plurality of ID tags 12 is read together with the parent ID tag 211 just by placing the card case 210 on the card reader, and the contents of the set can be verified. It can be carried out.

  Although the embodiment of the present invention has been described above, the present invention is not limited to such an embodiment. For example, in the above-described embodiment, the multilayer tag is used. However, in addition to the multilayer tag, FRID that requires a gap for reading information may be used. In this case, for example, as shown in FIG. 7, a card reader 130 with a stand 131 may be used. Each card-like FRID is placed on each of the stands to leave a gap between the FRIDs. be able to.

  The present invention is suitable for a forging press. Moreover, this invention can be used in the process of moving a some metal mold | die together besides a forge metal mold | die.

It is a block diagram which shows the structure of a metal mold | die management system. It is explanatory drawing for demonstrating a laminated tag. It is a schematic diagram of a tray type card reader. It is the schematic which shows the outline of a forging die. It is a flowchart which shows the process sequence of metal mold | die management. It is a flowchart which shows the process sequence of metal mold | die management. It is the schematic of the card reader of another form.

Explanation of symbols

1 ... Mold management system,
11: Data server,
12 ... ID tag 12,
13 ... Tray type card reader,
31 ... 1st card reader,
32 ... the second card reader,
33 ... Third card reader,
34 ... Fourth card reader,
51. Other computers,
100 ... terminal,
101 ... card writer,
210: Card case.

Claims (6)

A wireless ID tag that is associated with each of a plurality of molds used in one set and is moved together with the movement of the molds;
A reading means provided in a plurality of steps for reading information of the wireless ID tag;
An identification number for identifying the wireless ID tag, information on the mold associated with the wireless ID tag, and the process in which the reading unit that reads information from the wireless ID tag is installed are associated with each other. possess and data management means for managing, the,
A parent ID tag made up of a wireless ID tag different from the wireless ID tag is added to the one set, and the data management means includes an identification number of the parent ID tag and the wireless ID in the one set. A mold management system, wherein tag identification numbers are stored in association with each other . The reading means has a tray shape,
The mold management system according to claim 1, wherein the wireless ID tag is a stacked tag capable of reading information while being stacked on a tray.   The steps include a material receiving step for receiving a material to be the die, a die step for manufacturing and repairing the die itself, an inspection step for inspecting the finished die, and the die The mold management system according to claim 1, further comprising a step including a forging press machine used in a set.   The mold management system according to any one of claims 1 to 3, wherein the mold information includes a use history of the mold.   The mold according to any one of claims 1 to 4, wherein the data management unit is connected to an information browsing unit that can browse information managed by the data management unit. Management system. A mold management method using the mold management system according to any one of claims 1 to 5 ,
Reading the information stored in the wireless ID tag and the parent ID tag placed on the reading means;
The identification number of the wireless ID tag that has been read is associated with and stored in the mold information associated with the wireless ID tag of the identification number and the process in which the reading means that has read the information is installed. Stages,
Determining whether or not all of the wireless ID tags associated with the identification number of the parent ID tag are included without excess or deficiency;
A mold management method characterized by comprising:

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