WO2020246101A1

WO2020246101A1 - Mold management device, mold management method, and mold management program

Info

Publication number: WO2020246101A1
Application number: PCT/JP2020/010756
Authority: WO
Inventors: 茂伸山本
Original assignee: 三菱電機株式会社
Priority date: 2019-06-07
Filing date: 2020-03-12
Publication date: 2020-12-10
Also published as: JPWO2020246101A1; CN113993695A; CN113993695B; JP7069418B2

Abstract

A mold management device (1A) is provided with: a storage unit (20) for storing a first durability pressing count of a mold or a mold component with which a press machine (100) is provided, and starting material data relating to an object to be processed by the press machine (100); a counter (10) for counting a pressing count of the press machine (100); a computing unit (30) for computing a corrected pressing count by correcting the pressing count counted by the counter (10) on the basis of the starting material data stored in the storage unit (20), and determining whether the corrected pressing count that has been computed exceeds the first durability pressing count stored in the storage unit (20); and a display unit (40) for reporting that the time has been reached at which the mold or mold component should be replaced, if the computing unit (30) has determined that the first durability pressing count has been exceeded.

Description

Mold management device, mold management method and mold management program

This disclosure relates to a mold management device, a mold management method, and a mold management program.

In the press machine, the mold installed in the press machine and the die parts such as punches and dies are worn by repeating the pressing. Therefore, in the press machine, it is necessary to replace the mold and the mold parts according to the wear, or to polish and regenerate them. Therefore, a mold management device has been developed in order to grasp the wear of the mold and the mold parts.

For example, in Patent Document 1, a counter that detects the number of presses and the number of operations of parts and consumables, and an alarm when the total value of the number of times detected by the counter reaches a set time, a mold and a mold part are issued. A mold management device including a buzzer and a display for notifying the time of replacement or maintenance of the above is disclosed.

Japanese Unexamined Patent Publication No. 4-178300

The press machine may press various kinds of materials and materials of various thicknesses. In this case, the degree of wear of the mold and the mold parts differs depending on the type and thickness of the material.

However, the mold management device described in Patent Document 1 only issues an alarm based on the total number of times detected by the counter. Therefore, this mold management device cannot detect the difference in wear between the mold and the mold parts due to the difference in the material. As a result, this die management device cannot accurately notify the replacement time of the die and the die parts of the press machine.

This disclosure is made in order to solve the above problems, and provides a mold management device, a mold management method, and a mold management program capable of accurately notifying the replacement time of a mold and a mold part. The purpose is to do.

In order to achieve the above object, the mold management device according to the present disclosure includes a storage unit, a counting unit, a calculation unit, and a notification unit. The storage unit stores the first durable press count of the die or the die part provided in the press machine and the material data to be processed by the press machine. The counting unit counts the number of presses of the press machine. The calculation unit corrects the number of presses counted by the counting unit based on the material data stored in the storage unit, calculates the number of correction presses, and the calculated number of correction presses is stored in the storage unit. Determine if the number of times has been exceeded. When the calculation unit determines that the number of first durable presses has been exceeded, the notification unit notifies that it is time to replace the die or the die component.

According to the configuration of the present disclosure, the calculation unit corrects the number of presses counted by the counting unit based on the material data to obtain the number of correction presses, and determines whether or not the number of correction presses exceeds the first durable press number. judge. Therefore, it is possible to more accurately estimate the wear of the die and the die parts according to the material to be pressed. As a result, the mold management device can accurately notify the replacement time of the mold and the mold parts.

Block diagram of the die management device of the press machine according to the first embodiment of the present disclosure. Schematic diagram of a material characteristic master stored in a storage unit included in the die management device of the press machine according to the first embodiment of the present disclosure. Schematic diagram of the die information master stored in the storage unit included in the die management device of the press machine according to the first embodiment of the present disclosure. Schematic diagram of the environmental information master stored in the storage unit included in the die management device of the press machine according to the first embodiment of the present disclosure. Schematic diagram of the machining information master stored in the storage unit included in the die management device of the press machine according to the first embodiment of the present disclosure. Schematic diagram of the die part information master stored in the storage unit included in the die management device of the press machine according to the first embodiment of the present disclosure. The hardware configuration diagram of the arithmetic unit included in the die management device of the press machine according to the first embodiment of the present disclosure. The flow chart of the mold management process of the mold management apparatus which concerns on Embodiment 1 of this disclosure. Block diagram of the mold management device according to the second embodiment of the present disclosure. Schematic diagram of the production planning transaction stored in the storage unit included in the mold management device according to the second embodiment of the present disclosure. Schematic diagram of the item information master stored in the storage unit included in the mold management device according to the second embodiment of the present disclosure. Diagram of the relationship between products and parts of the item information master stored in the storage unit included in the mold management device according to the second embodiment of the present disclosure. Schematic diagram of the configuration information master stored in the storage unit included in the mold management device according to the second embodiment of the present disclosure. Block diagram of the mold management device according to the third embodiment of the present disclosure. Schematic diagram of a polishing work proficiency master stored in a storage unit included in the mold management device according to the third embodiment of the present disclosure. Block diagram of the mold management device according to the fourth embodiment of the present disclosure. Schematic diagram of the proficiency level master stored in the storage unit included in the mold management device according to the fourth embodiment of the present disclosure. Schematic diagram of the work count master stored in the storage unit included in the mold management device according to the fourth embodiment of the present disclosure.

Hereinafter, the die management device for the press machine, the die management method for the press machine, and the die management program for the press machine according to the embodiment of the present disclosure will be described in detail with reference to the drawings. In the figure, the same or equivalent parts are designated by the same reference numerals.

(Embodiment 1)
The die management device for the press machine according to the first embodiment is a device for controlling the timing of replacement or polishing of the die of the press machine and the die parts such as punches and dies. This die management device requests the replacement or polishing time of the mold and the mold parts based on the number of presses and notifies the user. However, since this mold management device obtains the accurate time, the number of presses is obtained. Is corrected based on the correction coefficient.

First, the configuration of the mold management device will be described with reference to FIGS. 1 to 7. Next, the operation of the mold management device will be described with reference to FIG.

FIG. 1 is a block diagram of the mold management device 1A according to the first embodiment. FIG. 2 is a schematic view of the material characteristic master 21 stored in the storage unit 20 included in the mold management device 1A. FIG. 3 is a schematic view of the mold information master 22 stored in the storage unit 20. FIG. 4 is a schematic view of the environment information master 23 stored in the storage unit 20. FIG. 5 is a schematic view of the processing information master 24 stored in the storage unit 20. FIG. 6 is a schematic view of the mold component information master 25 stored in the storage unit 20. FIG. 7 is a hardware configuration diagram of the arithmetic unit 30 included in the mold management device 1A.

As shown in FIG. 1, the die management device 1A stores a counter 10 that counts the number of times the material 200 is pressed by the press machine 100, and each data for correcting the number of presses counted by the counter 10. The storage unit 20 and each data stored in the storage unit 20 correct the number of presses counted by the counter 10, and a calculation unit that determines whether or not it is time to replace the die and the die parts and polish. A display unit 40 for displaying replacement and polishing information based on the output of the calculation unit 30 is provided.

The counter 10 is connected to a pressure cylinder (not shown) of the press machine 100, and counts the number of shots of the press machine 100, that is, the number of presses from the expansion / contraction operation of the pressure cylinder. Each time the counter 10 counts the number of presses, the counter 10 transmits the counted number of presses to the calculation unit 30.

In this specification, the counter 10 is an example of a counting unit and a counting unit.

On the other hand, the storage unit 20 stores basic information of the material and basic information of the die for correcting the number of presses. Specifically, the storage unit 20 stores a material characteristic master 21, a mold information master 22, an environment information master 23, a machining information master 24, and a mold part information master 25. Here, the master is data that serves as basic information, and is master data.

The material characteristic master 21 is data of basic information of the material for correcting the number of presses. The material characteristic master 21 stores the basic information of the material 200 to be pressed by the press machine 100 in a table format. Specifically, in the material property master 21, as shown in FIG. 2, each data of the material name, the plate thickness, the plate thickness coefficient, and the hardness coefficient of the material 200 is associated with the material code for specifying the material 200. ing.

Here, the material code is a number set for each material of the material 200. The plate thickness is the thickness of the plate where the material 200 to be processed by the press machine 100 is plate-shaped. The plate thickness coefficient is the relative thickness of the other material 200 when the plate thickness of the specific material 200 is 1, in other words, when the plate thickness of the reference material is 1. Further, as shown in Table 1, the hardness coefficient is the relative hardness of the other material 200 when the Vickers hardness of the reference material, that is, the HV (Vickers hardness) hardness is 1. is there. The hardness coefficient shown in Table 1 indicates the hardness coefficient of each material 200 when the HV hardness of bronze is 1.

Further, in this specification, the data of the plate thickness coefficient and the hardness coefficient of the material property master 21 is an example of the material data. The plate thickness coefficient is an example of a size coefficient, and the hardness coefficient is an example of a characteristic coefficient. Further, the Vickers hardness value is an example of a characteristic value.

On the other hand, the mold information master 22 is data of basic information of the mold for managing the mold. The die information master 22 stores the die information of the press machine 100 in a table format. Specifically, as shown in FIG. 3, in the mold information master 22, each data of the mold name, the number of durable presses, the unit price, the delivery period, and the molding difficulty coefficient is added to the mold number for specifying the mold. It is associated.

Here, the durable press count is the number of presses that is an index for determining that the die should be replaced due to the wear of the die. The unit price and the delivery period are the amount of money for each mold purchased and the period required for the mold to be delivered.

The molding difficulty coefficient is a coefficient that indicates the difficulty level when molding with a mold. For example, when manufacturing a part of a product of the press machine 100, the shape of the part becomes complicated when the number of parts of the product is large. Therefore, the larger the number of parts of the product, the higher the difficulty of molding the part. Further, the more frequently the mold parts are chipped, or the faster the mold parts wear, the higher the difficulty of molding. The molding difficulty coefficient is a coefficient provided to reflect such a situation in the correction of the number of presses. The molding difficulty coefficient is determined by conducting an experiment in advance using the mold number and the mold name shown in FIG.

In this specification, the number of durable presses is an example of the number of durable presses.

Further, the environment information master 23 is data of basic environment information used when correcting the number of presses. The environment information master 23 stores the environment information of the place where the press machine 100 is installed in a table format. Specifically, in the environmental information master 23, as shown in FIG. 4, the humidity and the environmental coefficient are associated with each other.

Here, the environmental coefficient is a coefficient that indicates the degree of the environment when molding with a mold. For example, if the press machine 100 is installed in an environment where the temperature is 50 ° C during the day and 10 ° C or less at night, even if the humidity is 10% during the day, the humidity becomes 100% at night, and as a result. , Mold parts are easily corroded. In this case, the life of the mold parts is shortened. The environmental coefficient is a coefficient indicating such an environment. The environmental coefficient is obtained by conducting an experiment in advance under various humidity environments using the molds having the mold numbers and mold names shown in FIG.

Further, the processing information master 24 is data of basic information of the mold for managing the mold. The processing information master 24 stores information in a table format for confirming whether the die of the press machine 100 conforms to the material 200 to be pressed. Specifically, in the processing information master 24, as shown in FIG. 5, the mold name and the mold number are associated with the material code of the material 200 corresponding to the mold name and the mold number.

Furthermore, the mold parts information master 25 is also data of basic mold information for managing the mold. The die part information master 25 stores the die part information of the press machine 100 in a table format. Specifically, as shown in FIG. 6, the mold part information master 25 includes the mold part name, the mold number, the service life, the number of polishing presses, the current number of presses, the polishing life, and the current polishing in the mold part number. Each data of quantity, number of polishings, and unit price is associated.

Here, the service life is the number of presses that is an index for determining that the mold parts should be replaced due to wear. The number of polishing presses is the number of presses that is an index for determining that the mold parts should be regenerated by polishing the mold parts. The current number of presses is the latest number of presses of the press machine 100. The polishing life is a life indicating how much the mold part can be polished, and in the mold part information master 25, the thickness of the polishable part of the mold part is substituted. The current polishing amount, the number of times of polishing, and the unit price are the amount of polishing of the mold parts, the number of times of polishing, and the purchase price of the mold parts.

In this specification, the useful number of times is an example of the number of times of the second durable press.

Such a master is stored in the storage unit 20. These masters are read by the calculation unit 30 shown in FIG. 1 and used for various calculations.

The calculation unit 30 is realized by the CPU (Central Processing Unit) 32 executing the mold management program stored in the memory 31 shown in FIG. 7. Here, the CPU is an example of a computer as referred to in the present specification.

When the counter 10 counts the number of presses of the press machine 100 from the counter 10, the calculation unit 30 receives the data of the number of presses from the counter 10. Then, the calculation unit 30 corrects the number of times of pressing received in order to reflect the degree of influence on the wear of the material 200 to be pressed.

In detail, although not shown, the press machine 100 includes an input unit composed of a numeric keypad, a keyboard, and the like. The material code of the material 200 to be pressed by the press machine 100 is input to the input unit. When the material code is input to the input unit, the calculation unit 30 receives the material code from the input unit. Further, as described above, the calculation unit 30 receives the data of the number of presses from the counter 10. The calculation unit 30 reads the plate thickness coefficient and hardness coefficient of the material 200 corresponding to the material code received from the input unit from the material characteristic master 21 of the storage unit 20, and calculates the number of presses received from the counter 10 as the plate thickness. Correct based on the coefficient and hardness coefficient. As a result, the calculation unit 30 obtains the number of correction presses.

Further, the calculation unit 30 further corrects the number of correction presses in order to reflect the degree of influence on the wear of the installation environment of the press machine 100.

Specifically, the press machine 100 includes the temperature / humidity sensor 11 shown in FIG. The calculation unit 30 receives the temperature and humidity data of the temperature / humidity sensor 11. Further, the calculation unit 30 reads out the environment information master 23 of the storage unit 20 and obtains an environment coefficient corresponding to the humidity data received from the temperature / humidity sensor 11. Then, the calculation unit 30 further corrects the number of correction presses described above based on the obtained environmental coefficient. As a result, the calculation unit 30 again obtains the number of correction presses.

Further, the calculation unit 30 corrects the number of correction presses in order to reflect the degree of influence on the wear of the molding target.

In detail, the die number of the mold installed in the press machine 100 is input to the input unit (not shown) described above, and the calculation unit 30 receives the mold number input to the input unit. .. Further, the calculation unit 30 reads out the molding difficulty coefficient corresponding to the received mold number from the mold information master 22 of the storage unit 20, and further corrects the number of correction presses based on the read molding difficulty coefficient. .. As a result, the calculation unit 30 again obtains the number of correction presses.

The calculation unit 30 determines from the obtained number of correction presses whether or not the die has reached the number of presses to be replaced.

Specifically, the calculation unit 30 reads the number of durable presses corresponding to the received mold number from the mold information master 22 of the storage unit 20. The calculation unit 30 reads the number of durable presses corresponding to the read die number from the die information master 22 of the storage unit 20. When the number of correction presses described above is obtained, the calculation unit 30 compares the number of correction presses and the number of durable presses read to determine whether or not the die has reached the number of presses to be replaced. Then, when the calculation unit 30 determines that the die has reached the number of presses to be replaced, the calculation unit 30 transmits the die exchange signal to the display unit 40 together with the determined die number and the number of presses.

Similarly, the calculation unit 30 determines from the obtained number of correction presses whether or not the die component has reached the number of presses to be replaced, or whether or not the number of presses to be polished has been reached.

Specifically, the mold part number used for the mold installed in the press machine 100 is input to the input unit. The calculation unit 30 receives the mold part number input to the input unit. Further, the calculation unit 30 reads from the storage unit 20 the useful times and the number of polishing presses of the mold part information master 25 corresponding to the received mold part numbers. When the calculation unit 30 calculates the number of correction presses, it compares the calculated number of correction presses with the number of useful times to determine whether or not the die component has reached the number of presses to be replaced. In addition, the calculation unit 30 compares the calculated number of correction presses with the number of polishing presses to determine whether or not the die component has reached the number of presses to be polished. When the calculation unit 30 determines that the die component has reached the number of presses to be replaced, or determines that the die component has reached the number of presses to be polished, the component replacement signal or the component polishing signal. Is transmitted to the display unit 40 together with the determined mold part number and the number of presses.

The display unit 40 is composed of a liquid crystal display with a touch panel. The display unit 40 displays a warning that the time for replacing or polishing the mold and the mold parts has arrived, based on the mold replacement signal, the component replacement signal, or the component polishing signal of the calculation unit 30.

Specifically, when the display unit 40 receives the exchange signal from the calculation unit 30 together with the die number and the number of presses, the display unit 40 displays the die number and the number of presses. It also indicates that the mold with that mold number is in a state to be replaced. The display unit 40 is provided with a buzzer, and the buzzer issues an alarm. As a result, the display unit 40 notifies the user of the press machine 100 that the die should be replaced. The display unit 40 may display the unit price and the delivery period of the mold information master 22 when displaying that the mold is in a state to be replaced.

When the display unit 40 receives a replacement signal or a polishing signal from the calculation unit 30 together with the mold part number and the number of presses, the display unit 40 displays the mold part number and the number of presses, and also displays the mold part number and the mold of the mold part number. Indicates that the part should be replaced or polished. It also raises an alarm. As a result, the display unit 40 notifies the user that the mold component is in a state to be replaced or polished. The display unit 40 may display the polishing life of the mold component information master 25, the current polishing amount, and the like when indicating that the mold component is in a state to be replaced or polished.

In this specification, the display unit 40 is an example of the notification unit. Further, the display unit 40 and the calculation unit 30 may be referred to as a graphic operation terminal (Graphic Operation Thermal: GOT [registered trademark]).

Next, the operation of the mold management device 1A will be described with reference to FIG. In the following description, it is assumed that the press machine 100 includes a start button and an input unit (not shown).

FIG. 8 is a flow chart of the mold management process of the mold management device 1A according to the first embodiment.

First, although not shown, the user of the press machine 100 presses the start button of the press machine 100. As a result, the press machine 100 is started. Further, the mold management program is executed by the CPU 32 of the mold management device 1A, and as a result, the flow of the mold management process is started.

After the press machine 100 is started and before the press work is started, the user can supply the die number, the die part number, and the material 200 of the mold installed in the press machine 100 to the press machine 100. Enter the material code of. On the other hand, the press machine 100 transmits the input die number, die part number, and material code to the calculation unit 30 of the die management device 1A. As a result, as shown in FIG. 8, the calculation unit 30 receives the mold number, the mold part number, and the material code (step S1).

Subsequently, the calculation unit 30 determines whether or not the material code conforms to the received mold number (step S2). Specifically, the calculation unit 30 reads all the mold numbers from the processing information master 24 of the storage unit 20, and whether or not the received mold numbers are the mold numbers included in the processing information master 24. To judge. Further, when the mold number is included in the machining information master 24, the calculation unit 30 determines whether or not the material code associated with the mold number matches the received material code. When the received mold number is included in the machining information master 24 and the received material code matches the material code of the machining information master 24, the calculation unit 30 matches the material code with the received mold number. Judge that there is.

When the calculation unit 30 determines that the received material code does not match the die number (No in step S2), the calculation unit 30 transmits an alarm signal to the display unit 40 and the press machine 100 (step S3). As a result, the calculation unit 30 stops the press machine 100. In addition, the display unit 40 displays a warning of mold incompatibility. As a result, the calculation unit 30 prompts the user to replace the mold or the material 200.

After transmitting the alarm signal, the calculation unit 30 returns to step S1, the user replaces the mold or the material 200, and a new mold number, mold part number, and material code are input to the input unit. Wait until.

On the other hand, when the calculation unit 30 determines that the received material code conforms to the mold number (Yes in step S2), the calculation unit 30 determines whether or not the mold component has reached the polishing life (step S4). ). Specifically, the calculation unit 30 reads the polishing life and the current polishing amount of the mold part associated with the above-mentioned mold part number from the mold part information master 25 of the storage unit 20, and reads the polishing life. The current polishing amount is compared to determine whether or not the current polishing amount exceeds the polishing life.

When the calculation unit 30 determines that the current polishing amount has exceeded the polishing life and the mold component has reached the polishing life (No in step S4), the calculation unit 30 returns to step S3 and gives an alarm signal to the display unit 40 and the press machine 100. To send. At this time, the calculation unit 30 transmits the mold part number to the display unit 40. As a result, the display unit 40 displays the mold part number and the warning of the polishing life. As a result, the calculation unit 30 prompts the user to confirm the mold.

On the other hand, when the calculation unit 30 determines that the die component has not reached the polishing life (Yes in step S4), the calculation unit 30 does not stop the press machine 100 and displays a warning on the display unit 40. do not do. Then, the calculation unit 30 waits until the material 200 is supplied to the press machine 100.

On the other hand, the user supplies the material 200 to be pressed to the press machine 100 in order to perform the pressing work. When the material 200 supplied by the press machine 100 is pressed, the counter 10 counts the number of presses for each press and transmits the data of the counted number of presses to the calculation unit 30. The calculation unit 30 receives the press count data (step S5).

When the calculation unit 30 receives the press count data, it reads out from the storage unit 20 the plate thickness coefficient and the hardness coefficient of the material 200 corresponding to the material code of the material characteristic master 21. Further, the calculation unit 30 receives the humidity data of the temperature / humidity sensor 11 and reads out the environmental coefficient corresponding to the received humidity data from the environment information master 23 of the storage unit 20. Further, the calculation unit 30 reads out the molding difficulty coefficient corresponding to the mold number received in step S1 from the mold information master 22 of the storage unit 20.

Subsequently, the calculation unit 30 corrects the number of presses based on the read-out plate thickness coefficient, hardness coefficient, environment coefficient, and molding difficulty coefficient (step S6). Specifically, the calculation unit 30 corrects the number of presses and obtains the number of correction presses based on the following equation 1.

Number of correction presses = Number of previous correction presses + Plate thickness coefficient x Hardness coefficient x Environmental coefficient x Molding difficulty coefficient ... Equation 1

In this specification, this step is an example of a press count correction step or a press count correction step.

When the calculation unit 30 obtains the number of correction presses, it reads the number of durable presses corresponding to the die number from the die information master 22 of the storage unit 20. Subsequently, the calculation unit 30 determines whether or not the obtained number of correction presses is less than the read number of durable presses (step S7).

In this specification, this step is an example of a mold determination step or determination step.

When the calculation unit 30 determines that the number of correction presses is not less than the number of durable presses, that is, exceeds the number of durable presses (No in step S7), the calculation unit 30 transmits a die exchange signal to the display unit 40 (step S8). .. At this time, the calculation unit 30 transmits the die number and the number of presses to the display unit 40. When the display unit 40 receives the die exchange signal, the display unit 40 displays a warning that the die should be exchanged together with the die number and the number of presses. As a result, the calculation unit 30 notifies the user that it is time to replace the mold, and prompts the user to replace the mold. The calculation unit 30 then proceeds to step S9.

In this specification, the step of transmitting the mold exchange signal is an example of the judgment result output step of the mold or the judgment result output step. Further, the step of replacing the mold after the replacement of the mold is prompted is an example of the mold replacement step.

On the other hand, when the calculation unit 30 determines that the number of correction presses is less than the number of durable presses (Yes in step S7), the arithmetic unit 30 reads the number of useful times corresponding to the die part number from the die part information master 25 of the storage unit 20. , It is determined whether or not the number of correction presses obtained in step S6 is less than the read useful number of times (step S9).

In this specification, this step is an example of a determination step or determination step of a mold part.

When the calculation unit 30 determines that the number of correction presses is not less than the useful number of times, that is, exceeds the useful number of times (No in step S9), the calculation unit 30 transmits a parts replacement signal to the display unit 40 (step S10). At this time, the calculation unit 30 transmits the mold part number and the number of presses together with the part replacement signal. Upon receiving the component replacement signal, the display unit 40 displays the die component number, the number of presses, and an alarm indicating that the die component should be replaced. As a result, the calculation unit 30 notifies the user that it is time to replace the mold component, and prompts the user to replace the mold component. The calculation unit 30 then proceeds to step S11.

In this specification, the step of transmitting the parts replacement signal is an example of the judgment result output step of the mold parts or the judgment result output step. Further, the step of replacing the mold component after the replacement of the mold component is prompted is an example of the process of replacing the mold component.

On the other hand, when the calculation unit 30 determines that the number of correction presses is less than the useful number (Yes in step S9), the calculation unit 30 reads the number of polishing presses corresponding to the mold part number from the mold part information master 25 of the storage unit 20. .. Subsequently, the calculation unit 30 determines whether or not the number of correction presses obtained in step S6 is less than the number of polishing presses (step S11).

When the calculation unit 30 determines that the number of correction presses is not less than the number of polishing presses and exceeds the number of polishing presses (No in step S11), the display unit 40 displays the part number and the number of presses together with the part polishing. A signal is transmitted (step S12). Upon receiving the component polishing signal, the display unit 40 displays a die part number, the number of presses, and an alarm indicating that the die component is in a state to be polished. As a result, the calculation unit 30 notifies the user that the time for polishing the mold component has arrived, and prompts the user to polish the mold component. The calculation unit 30 then proceeds to step S13.

On the other hand, when the calculation unit 30 determines that the number of correction presses is less than the number of polishing presses (Yes in step S11), the calculation unit 30 stores the current number of presses (step S13). Specifically, the calculation unit 30 rewrites the current number of presses of the mold part information master 25 of the storage unit 20 to the number of presses received in step S5.

Subsequently, the calculation unit 30 returns to step S5 after storing the current number of presses, and receives new data on the number of presses of the counter 10. As a result, the arithmetic unit 30 receives the number of presses for each press and continues to monitor whether the die and the die parts have reached the time to be replaced or the die parts have reached the time to be polished. ..

The flow of the above mold management process is continued until the user presses the start button of the press machine 100 again and the operation of the press machine 100 is stopped. When the start button is pressed again and the operation of the press machine 100 is stopped, the flow of the mold management process is forcibly terminated.

In the above flow of mold management processing, warnings are displayed on the display unit 40 in steps S8, S10, and S12, but as a result of the determination in steps S7, S9, and S11, a plurality of warnings are displayed on the display unit 40. When the result is displayed, one of the warnings may be displayed on the display unit 40 with priority. For example, when both the warnings in steps S10 and S12 are displayed on the display unit 40, the warning in step S10 may be displayed in preference to the warning in step S10.

Further, in step S12, the calculation unit 30 prompts the user to polish the mold parts by displaying an alarm on the display unit 40. In this case, the user may polish the die parts and reset the current number of presses of the mold part information master 25 shown in FIG. 6 to 0 by using a touch panel (not shown) provided in the display unit 40. Further, the user may change the current polishing amount associated with the mold part name of the polished mold part to the value after polishing, and increase the number of times of polishing by one.

In step S6, the calculation unit 30 corrects the number of presses based on the equation 1 to obtain the correction press number, but the calculation unit 30 corrects the number of presses based on the following equation 2. The number of correction presses may be calculated.
Number of correction presses = Number of previous correction presses + Plate thickness coefficient x Hardness coefficient ... Equation 2
If the calculation is performed based on such an equation, the environmental coefficient and the molding difficulty coefficient do not need to be stored in the storage unit 20 in advance, and the calculation unit 30 does not need to receive the humidity data from the temperature / humidity sensor 11. .. As a result, the calculation unit 30 can more easily obtain the number of correction presses.

Further, in the environmental information master 23, the humidity and the environmental coefficient are associated with each other, but the temperature and the environmental coefficient may be associated with each other. In this case, the calculation unit 30 may read out the environmental coefficient corresponding to the temperature data received from the temperature / humidity sensor 11 and correct the number of presses. Alternatively, the number of correction presses may be obtained.

As described above, in the die management device 1A according to the first embodiment, the calculation unit 30 corrects the number of presses of the counter 10 based on the plate thickness coefficient and the hardness coefficient, which are the data of the material 200, and corrects the press. The number of times is obtained, and it is determined whether or not the die is used in excess of the number of durable presses by using the obtained number of correction presses. Therefore, when there are a plurality of types of materials 200 to be pressed by the press machine 100, the mold management device 1A can more accurately estimate the replacement time according to the degree of wear of the mold due to the difference in the types. As a result, the mold management device 1A can more accurately notify the mold replacement time.

The calculation unit 30 uses the number of correction presses to determine whether or not the die component has been used more than the useful number of times. Therefore, the mold management device 1A can more accurately estimate the replacement time according to the degree of wear of the mold parts. As a result, the mold management device 1A can more accurately notify the replacement time of the mold parts.

Further, since the calculation unit 30 determines whether or not the die component exceeds the number of polishing presses by using the number of correction presses, the polishing time of the die component can be notified more accurately.

(Embodiment 2)
In the first embodiment, the calculation unit 30 uses the number of presses counted by the counter 10 to determine whether or not the die and the die parts are in the replacement time and the polishing time. However, the calculation unit 30 is not limited to this. The calculation unit 30 may use the production plan of the press machine 100 to predict whether or not the mold and the mold parts are to be replaced or polished.

In the mold management device 1B according to the second embodiment, the production plan data is stored in the storage unit 20. Then, the calculation unit 30 estimates the replacement time and the polishing time of the mold and the mold parts by using the production planning data.

Hereinafter, the mold management device 1B according to the second embodiment will be described with reference to FIGS. 9 to 13. In the second embodiment, a configuration different from that of the first embodiment will be described.

FIG. 9 is a block diagram of the mold management device 1B according to the second embodiment. FIG. 10 is a schematic view of the production planning transaction 26 stored in the storage unit 20 included in the mold management device 1B. FIG. 11 is a schematic view of the item information master 27 stored in the storage unit 20. FIG. 12 is a diagram of the relationship between products and parts of the item information master 27. FIG. 13 is a schematic view of the configuration information master 28 stored in the storage unit 20.

As shown in FIG. 9, the mold management device 1B includes a storage unit 20, and the storage unit 20 includes a material characteristic master 21, a mold information master 22, and an environment information master 23 described in the first embodiment. In addition to the machining information master 24 and the mold part information master 25, the production planning transaction 26, the item information master 27, and the configuration information master 28 are stored.

The production planning transaction 26 stores data indicating the scheduled production date of the product produced by using the parts processed by the press machine 100 in a table format. Here, the transaction is transaction data in which the type and number of products are recorded in time series. Specifically, in the production planning transaction 26, as shown in FIG. 10, production planning data of which product is manufactured and how much is stored for each scheduled manufacturing date is stored.

On the other hand, the item information master 27 stores data in a table format indicating whether the production target is a product or a part, and what kind of part the product or part is composed of. Specifically, in the item information master 27, as shown in FIG. 11, a product part number or a part number is associated with a product part flag indicating whether the product or part is a name, a product, or a part. .. Further, the product number or part number is associated with the material name, plate thickness, and material code of the material 200 used at that time when the product or part is manufactured by press working with the press machine 100. There is.

Further, the configuration information master 28 shown in FIG. 9 stores data indicating what kind of "parent-child relationship" the product or part has in a table format.

Here, the "parent-child relationship" of a product or part means a relationship in which, when a specific product or part is a "parent", the parts constituting the "parent" product or part are "children". ..

For example, the product shown in the item information master 27 shown in FIG. 11 is manufactured by the parts shown in the item information master 27. As shown in FIG. 12, the product with the product name 001 is manufactured by combining the "child" parts of the parts with the part names A and G. Therefore, the product with the product name 001 is the "parent", and the parts with the part names A and G are the "child". Further, the part with the part name A is manufactured by combining the parts with the part names C and D. Therefore, when the part with the part name A is the "parent" part, the parts with the part names C and D are the "child" parts. The part with the part name D is manufactured with the part with the part name F manufactured by press working with the press machine 100. Similarly, the part with the part name G is manufactured with the part with the part name I manufactured by pressing with the press machine 100. Therefore, when the parts with the part names D and G are the "parent" parts, the parts with the part names F and I are the "child" parts.

Further, the product with the product name 002 is manufactured by combining the parts with the part names B and X. Therefore, the product with the product name 002 is the "parent", and the parts with the part names B and X are the "child". Further, the part with the part name B is manufactured by combining the parts with the part names C and H, and the part with the part name H is manufactured with the part with the part name E manufactured by press working. Therefore, when the part name B is the "parent", the parts of the part names C and H are "children", and when the part of the part name H is the "parent", the part of the part name E is the "child". ..

The configuration information master 28 stores data indicating the parent-child relationship between such products and parts. In the configuration information master 28, as shown in FIG. 13, the name of the parent component is associated with the name of the child component and the number of child components required for the parent component.

Returning to FIG. 9, in the mold management device 1B, the calculation unit 30 reads the production planning transaction 26, the item information master 27, and the configuration information master 28 from the storage unit 20, and for each scheduled manufacturing date, for each part type. Calculate the number of products manufactured. Specifically, the calculation unit 30 obtains how many products are scheduled to be manufactured from the production planning transaction 26 for each scheduled manufacturing date, and from the configuration information master 28 for each product, the type and type of necessary parts. Find the number for each. As a result, the calculation unit 30 obtains the number of manufactured parts for each type of parts. Further, the calculation unit 30 obtains from the item information master 27 which part among those parts is to be pressed by the press machine 100, and obtains the number of times of pressing for each part.

The calculation unit 30 uses the number of manufactured parts for each type of calculated parts instead of the number of presses of the counter 10 described in the first embodiment to obtain the number of correction presses. As a result, the calculation unit 30 obtains the number of correction presses for each scheduled manufacturing date, and determines when the die described in the first embodiment exceeds the number of durable presses. Further, the calculation unit 30 determines when the die component exceeds the useful number of times, and determines when the die component exceeds the number of polishing presses.

The calculation unit 30 transmits to the display unit 40 a date that exceeds the obtained number of durable presses, a date that exceeds the number of useful presses, and a date that exceeds the number of polishing presses. As a result, the calculation unit 30 displays these dates on the display unit 40. As a result, the calculation unit 30 notifies the user of the date that serves as a guideline for the replacement schedule of the mold and the mold parts. In addition, the calculation unit 30 notifies the user of a date that serves as a guideline for the polishing schedule of the mold parts.

In this specification, a date that exceeds the number of durable presses is an example of the first date. A date that exceeds the useful life is an example of a second date.

When the calculation unit 30 transmits the mold replacement date to the display unit 40, the calculation unit 30 reads the mold unit price and the delivery period of the mold information master 22 of the storage unit 20 and displays the read unit price and the delivery period. It is good to send to 40. As a result, it is preferable to display the unit price and the delivery period on the display unit 40. Further, when the calculation unit 30 transmits the polishing date of the mold to the display unit 40, the calculation unit 30 reads the mold part unit price and the delivery period of the mold part information master 25 of the storage unit 20 and displays the unit price and the delivery period. It is preferable to send the information to the unit 40 so that the display unit 40 displays the unit price and the delivery period.

The operation of the mold management device 1B is performed except that the mold and the mold parts determine the replacement time and the polishing time by using the mold management device 1A described in the first embodiment and the above-mentioned production planning data. The same is true. Therefore, in the second embodiment, the description of the operation of the mold management device 1B will be omitted.

As described above, the die management device 1B according to the second embodiment includes a calculation unit 30 that calculates the number of parts to be manufactured by the press machine 100 based on the production planning data stored in the storage unit 20. There is. The calculation unit 30 obtains the number of correction presses for the number of calculated parts instead of the number of presses of the counter 10, and further obtains the replacement date and the polishing date of the die and the mold parts from the number of correction presses. Therefore, the mold management device 1B can accurately predict the replacement date and the polishing date.

(Embodiment 3)
In the first and second embodiments, the storage unit 20 stores the material characteristic master 21, the mold information master 22, the environment information master 23, the machining information master 24, and the mold part information master 25, and the calculation unit 30 stores these masters. Is read out to obtain the number of correction presses. However, the master stored in the storage unit 20 is not limited to this. If there is a mold part that has been polished in the past, the storage unit 20 may store a master that indicates the polishing information. The storage unit 20 included in the mold management device 1C according to the third embodiment stores a master indicating the polishing information.

FIG. 14 is a block diagram of the mold management device 1C according to the third embodiment. FIG. 15 is a schematic view of a polishing work proficiency master 29 stored in a storage unit 20 included in the mold management device 1C.

As shown in FIG. 14, the polishing work proficiency master 29 is stored in the storage unit 20. In the polishing work proficiency master 29, data indicating the work proficiency information of the worker who polished the mold part when the mold part is polished is stored in a table format. Specifically, in the polishing work proficiency master 29, as shown in FIG. 15, the mold part number described in the first embodiment and the polishing work coefficient are associated with each other.

Here, the polishing work coefficient is a coefficient indicating the accuracy of the mold part due to the skill level of the worker who polished the mold part when it was polished in the past. In general, the accuracy of polishing mold parts varies depending on the skill level of the operator. As a result, the life of the mold parts changes depending on the skill level of the operator. The polishing work coefficient is a coefficient indicating the accuracy of the mold part according to such skill level. In other words, the polishing work coefficient is a coefficient indicating polishing accuracy. The polishing work coefficient is determined by experimentally determining the relationship between the number of presses and the wear of the polished mold parts for each worker who polishes the mold parts.

On the other hand, the calculation unit 30 reads the polishing work proficiency master 29 from the storage unit 20, corrects the number of presses of the counter 10 based on the reading coefficient of the polishing work proficiency master 29, and calculates the number of correction presses. obtain. Alternatively, the calculation unit 30 further corrects the number of correction presses described in the first embodiment based on the read-out polishing work coefficient. As a result, the number of correction presses considering the degree of wear caused by the polishing operator is obtained.

Specifically, the calculation unit 30 obtains the number of correction presses by using Equation 3.
Number of correction presses = Number of previous correction presses + Plate thickness coefficient x Hardness coefficient x Environment coefficient x Molding difficulty coefficient x Polishing work coefficient ... Equation 3

As described above, the die management device 1C according to the third embodiment corrects the number of presses based on the polishing work coefficient stored in the storage unit 20, so that the replacement time can be estimated more accurately. .. As a result, the mold management device 1C can more accurately notify the mold replacement time.

(Embodiment 4)
The mold management device 1C according to the third embodiment obtains the number of correction presses based on the polishing work coefficient of the polishing work proficiency master 29, but the polishing work coefficient of the polishing work proficiency master 29 is polishing management. It may be set by the device 60.

FIG. 16 is a block diagram of the mold management device 1D according to the fourth embodiment. FIG. 17 is a schematic view of the proficiency level master 50 stored in the storage unit 20 included in the mold management device 1D. FIG. 18 is a schematic view of the work count master 51 stored in the storage unit 20.

As shown in FIG. 16, the arithmetic unit 30 included in the mold management device 1D is connected to the polishing management device 60. Here, the polishing management device 60 is a so-called server that manages the ordering and delivery of polishing of mold parts. The calculation unit 30 receives from the polishing management device 60 data of the part number of the mold part delivered after the polishing is completed and the worker ID (identification) of the polishing.

On the other hand, the storage unit 20 stores the proficiency level master 50 and the work count master 51. Here, as shown in FIG. 17, the proficiency level master 50 is table-type data in which the number of polishings experienced by the worker up to that point and the polishing work coefficient at that time are associated with each other. Further, the work count master 51 is tabular data in which the worker ID and the number of polishings performed by the worker registered with the worker ID up to that time are associated with each other.

When the calculation unit 30 receives the data of the part number of the mold part and the worker ID of the polishing, the calculation unit 30 obtains the number of times of polishing of the worker who has polished the mold part. Is read. The calculation unit 30 obtains the number of polishings of the worker by adding 1 to the number of polishings associated with the received worker ID in the read number of work masters 51. Subsequently, the calculation unit 30 changes the number of polishings associated with the worker ID to the obtained number of polishings. As a result, the calculation unit 30 updates the work count master 51.

The calculation unit 30 further reads the proficiency level master 50 of the storage unit 20 and specifies the polishing work coefficient corresponding to the updated number of polishing times. The calculation unit 30 reads out the polishing work proficiency master 29 described in the third embodiment, and converts the polishing work coefficient associated with the part number of the mold part received from the polishing management device 60 into the specified polishing work coefficient. change. Then, the changed polishing work coefficient is written in the polishing work proficiency master 29. As a result, the calculation unit 30 updates the polishing work coefficient of the mold parts delivered after the polishing is completed.

Although the mold parts are described in the fourth embodiment, the mold parts may be replaced with the mold.

As described above, the mold management device 1D according to the fourth embodiment has a polishing work proficiency level based on the data of the part number and the worker ID of the mold part for which polishing has been completed, which is transmitted by the polishing management device 60. Update master 29. As a result, the replacement time can be estimated more accurately.

The mold management device 1A-1D of the press machine 100, the mold management method of the press machine 100, and the mold management program of the press machine 100 according to the embodiment of the present disclosure have been described above, but the present disclosure is limited to this. Not done. For example, in the first embodiment, the calculation unit 30 corrects the number of presses counted by the counter 10 based on the plate thickness coefficient and the hardness coefficient of the material characteristic master 21 to obtain the correction press number. However, the calculation unit 30 is not limited to this. The calculation unit 30 may obtain the number of correction presses based on the material data stored in the storage unit 20. For example, the calculation unit 30 may obtain the number of correction presses based only on the plate thickness coefficient of the material 200 or only on the hardness coefficient. When the number of correction presses is calculated only from the plate thickness coefficient of the material 200, the relative plate thickness of the other material 200 to the plate thickness of the specific material 200 in the material characteristic master 21 is calculated, and the correction is made from the relative plate thickness. The number of presses may be calculated.

Further, the Vickers hardness described in the first embodiment is one of the indexes for estimating the strength of the material 200. Therefore, the calculation unit 30 may obtain the number of correction presses based on the characteristic value for estimating the strength of the material 200 other than the Vickers hardness. For example, the calculation unit 30 may obtain the number of correction presses based on characteristic values such as yield strength, tensile strength, and fatigue strength. In this case, the calculation unit 30 may obtain the number of correction presses by using the characteristic coefficient which is a characteristic value relative to the specific material 200.

Further, the plate thickness coefficient described in the first embodiment is one of the indexes indicating the size of the material 200. Therefore, the calculation unit 30 may obtain the number of correction presses based on another index indicating the size of the material 200. For example, the calculation unit 30 may obtain the number of correction presses based on the values of the volume, area, and the like of the material 200. In this case, the calculation unit 30 may obtain the number of correction presses by using the size coefficient which is a size value relative to the specific material 200.

In the first embodiment, the display unit 40 displays an alarm that the die should be replaced together with the die number and the number of presses. In addition, the display unit 40 displays a die part number, the number of presses, and an alarm indicating that the die part should be replaced. The display unit 40 displays an alarm indicating that the mold component is in a state to be polished. However, the display unit 40 is not limited to this. The display unit 40 may be any notification unit that notifies that it is time to replace the mold or the mold parts. Therefore, instead of the display unit 40, a buzzer that emits sound, a lamp that emits light, or the like may be used.

In the first embodiment, the calculation unit 30 determines whether or not the mold parts or the mold should be replaced. However, the calculation unit 30 is not limited to this. The calculation unit 30 may determine whether or not to maintain the mold parts or the mold. In this case, it is preferable to store the number of maintenance presses in the storage unit 20 and determine whether or not the number of correction presses exceeds the number of maintenance presses.

In the above embodiment, the mold management program is stored in the memory 31, but the mold management program includes a flexible disk, a CD-ROM (Compact Disk Ready-Only Memory), a DVD (Digital Versailles Disc), and an MO. It may be stored and distributed in a computer-readable recording medium such as (Magnet-Optical Disc). In this case, the calculation unit 30 that executes the mold management process may be configured by installing the mold management program stored in the recording medium on the computer.

Further, the mold management program may be stored in a disk device of a server device on an Internet communication network, and the mold management program may be superimposed on a carrier wave and downloaded.

The present disclosure allows for various embodiments and modifications without departing from the broad spirit and scope of the present disclosure. Moreover, the above-described embodiment is for explaining the present disclosure, and does not limit the scope of the present disclosure. That is, the scope of the present disclosure is indicated by the claims, not the embodiments. And various modifications made within the scope of the claims and within the equivalent meaning of disclosure are considered to be within the scope of the present disclosure.

This application is based on Japanese Patent Application No. 2019-106730 filed on June 7, 2019. The specification, claims, and the entire drawing of Japanese Patent Application No. 2019-106730 shall be incorporated into this specification as a reference.

1A-1D mold management device, 10 counter, 11 temperature and humidity sensor, 20 storage unit, 21 material characteristic master, 22 mold information master, 23 environmental information master, 24 machining information master, 25 mold parts information master, 26 production Planning transaction, 27 item information master, 28 configuration information master, 29 polishing work proficiency master, 30 calculation unit, 31 memory, 32 CPU, 40 display unit, 50 proficiency master, 51 work count master, 60 polishing management device, 100 Press machine, 200 materials.

Claims

A storage unit that stores the first durable press count of the die or die parts provided in the press machine and the material data to be processed by the press machine.
A counting unit that counts the number of presses of the press machine,
The number of presses counted by the counting unit is corrected based on the material data stored in the storage unit to calculate the number of correction presses, and the calculated number of correction presses is stored in the storage unit. A calculation unit that determines whether or not the number of durable presses has been exceeded, and
When the calculation unit determines that the number of times of the first durable press has been exceeded, a notification unit for notifying that it is time to replace the die or the die component, and a notification unit.
Mold management device equipped with.
The storage unit stores the number of second durable presses of the die or the die component.
The calculation unit determines whether or not the calculated number of correction presses exceeds the number of second durable presses stored in the storage unit.
When the calculation unit determines that the number of times of the second durable press has been exceeded, the notification unit notifies that the time for maintaining the die or the die component has been reached.
The mold management device according to claim 1.
The material data is a characteristic coefficient in which the characteristic value of the material relative to the reference material is indicated by a coefficient, or a size coefficient in which the size of the material is indicated by a coefficient relative to the reference material.
The mold management device according to claim 1 or 2.
In the storage unit, a molding difficulty coefficient indicating the difficulty level when molding with the die, an environment coefficient indicating the state of the environment in which the press machine is installed, and polishing accuracy of the die or the die part At least one of the polishing work coefficients indicating
The calculation unit corrects the number of presses counted by the counting unit based on at least one of the molding difficulty coefficient, the environmental coefficient, and the polishing work coefficient stored in the storage unit, and the correction press. Calculate the number of times,
The mold management device according to any one of claims 1 to 3.
In the storage unit, the types of parts manufactured by the press machine pressing the material, the scheduled manufacturing dates of the products manufactured by assembling the parts, the number of manufactured products for each scheduled manufacturing date, and the products. The number of parts required for each type of parts is stored in
The calculation unit calculates and calculates the number of products manufactured for each scheduled production date and for each type of parts from the number of products manufactured for each scheduled production date of the product and the number of each type of the parts required for the product. Based on the number of manufactured parts for each scheduled manufacturing date and each type of the part and the material data stored in the storage unit, the first date in which the number of correction presses exceeds the number of first durable presses is obtained.
The notification unit notifies the first date obtained by the calculation unit as a date on which the mold or the mold component should be replaced.
The mold management device according to any one of claims 1 to 4.
The storage unit stores the number of second durable presses of the die or the die component.
The calculation unit obtains a second date in which the number of correction presses exceeds the number of second durable presses of the die or the die component.
The notification unit notifies the second date obtained by the calculation unit as a date on which the mold or the mold component should be maintained.
The mold management device according to claim 5.
A counting process that counts the number of presses on the press machine,
A press number correction step of correcting the number of presses counted in the counting process based on the material data of the processing target of the press machine to obtain a correction press number, and a press number correction step.
A determination step of determining whether or not the number of correction presses obtained in the press number correction step exceeds the durable press number of the die or die parts provided in the press machine.
A replacement step of replacing the die or the die parts when it is determined in the determination step that the number of durable presses has been exceeded.
Mold management method equipped with.
A die management program for a press machine equipped with a counter that counts the number of presses.
On the computer
A press number correction step of correcting the number of presses counted by the counter and obtaining a correction press number based on the material data of the processing target of the press machine.
A determination step for determining whether or not the number of correction presses obtained in the press number correction step exceeds the durable press number of the die or die parts provided in the press machine.
When it is determined in the determination step that the number of durable presses has been exceeded, a determination result output step for outputting a replacement signal indicating that the time for replacing the die or the die component has been reached, and a determination result output step.
Mold management program to execute.