JP3155737B2 - Molding machine with periodic inspection instruction function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding machine having a periodic inspection instruction function, and more particularly, to automatically give priority display on a display device that a regular inspection date has arrived, so as to prompt an operator to perform a periodic inspection. Injection molding machine, foam molding machine,
The present invention relates to a molding machine such as a die casting machine.

[0002]

2. Description of the Related Art A recent molding machine, for example, an injection molding machine is mainly controlled by a microcomputer. Such a microcomputer-controlled injection molding machine is provided with a display device such as a color CRT display, and a display screen for setting various molding operation conditions for automatic molding operation, a display screen for various measured data, Various mode screens such as various alarm display screens and periodic inspection screens are displayed.

When the microcomputer recognizes the arrival of a predetermined periodic inspection date, the periodic inspection screen in the above-mentioned mode screen is automatically displayed on the display device in order to prompt the operator to perform the periodic inspection. It was like. When such a display mode of the periodic inspection screen is provided, the periodic inspection schedule management performed by the operator or the site manager according to the inspection schedule management table or the like can be entrusted to the molding machine itself, thereby greatly improving the convenience. In addition,
Such a transition to the display mode of the periodic inspection screen is performed only when the microcomputer recognizes that the predetermined periodic inspection date has arrived by the calendar / clock function means built in the microcomputer. Had become.

[0004] Here, as a prior art relating to a molding machine provided with a display mode of the periodic inspection screen as described above, for example, Japanese Patent Application Laid-Open No. 2-212968 previously proposed by the present applicant has been proposed.
And JP-A-3-118131.

[0005]

By the way, in the above-mentioned prior art, the microcomputer is required to perform the periodic inspection only when the microcomputer recognizes that the predetermined periodical inspection date has arrived by the calendar / clock function means incorporated therein. The display mode of the inspection screen was set. Therefore, the periodic inspection cannot be instructed due to the accumulation of the number of shots (the number of times of operation). Therefore, the 24-hour operation or the high cycle operation is executed, and before the regular inspection date set on the assumption that the normal operation is performed, However, there is a problem that even if a periodic inspection is required, it cannot be dealt with.

[0006] Further, only when the periodic inspection screen is displayed, if the inspected signal indicating that the periodic inspection has been completed is not input interactively with the periodic inspection screen, the microcomputer determines that the periodic inspection has been completed. Even if the regular inspection is performed before the regular inspection date, there is a problem that the regular inspection screen will be displayed on the day of the periodic inspection date. There is a problem that the history information of the operation is not known later. For this reason, if a regular inspection is performed before the regular inspection date, the next periodic inspection time will be set by adding the number of days from the date of the latest periodic inspection or the number of shots from this time It has also been pointed out that what should be performed by accumulating (the number of operations) becomes longer than a regular periodic inspection interval, which may adversely affect the machine life.

[0007] In addition, since the regular inspection screen according to the prior art only displays that the regular inspection date has arrived, even if a service person or the like wants to know the history information of the past periodic inspection, this is not necessary. It couldn't cope at all. Therefore, the grease lubrication inspection, which is an important item in the periodic inspection items, has been managed by attaching a grease lubrication inspection table as shown in FIG. 5 to the machine, for example. Was pointed out that it was troublesome.

Further, in the prior art, the display of the periodic inspection screen is performed regardless of the time zone. For example, the periodic inspection display screen is displayed even during the night of unmanned automatic continuous operation. Therefore, it has been pointed out that it is useless to output the periodic inspection display screen when there is no operator.

Therefore, a technical problem to be solved by the present invention is to solve the above-mentioned problems of the prior art.
The purpose is to display the periodic inspection screen or display a message prompting you to call the periodic inspection screen when either the cumulative number of shots or the number of days has reached the time when periodic inspection is required. Then, the information is displayed on the called periodic inspection screen as a display form convenient for management. Another object of the present invention is that, when the inspection is completed at an arbitrary time before the time required for the periodic inspection, the periodic inspection screen can be called at this arbitrary time to input the inspected signal. In addition, the time at which the checked signal is input is recognized as the latest checked periodic inspection date, and the date and the cumulative shot count value at this time are used as a reference for calculating the next scheduled inspection date (time). It is in. Another object of the present invention is to display a periodic inspection screen or a message prompting the user to call the periodic inspection screen only during a predetermined time period within a day as a normal working time period. Is to be done.

[0010]

In order to achieve the above object, the present invention provides a microcomputer for controlling the entire molding machine, a display device for displaying various mode screens by an output of the microcomputer, an input device, in the molding machine having a regular inspection instruction function wherein the microcomputer is itself
By means of counting the number of shots (number of operations) built in
The total number of shots since the last inspection date
Or a built-in calendar / clock
Periodically after a certain number of days have passed since the last inspection date
Recognizing the earlier occurrence of the inspection date,
In the case was, it is determined that the arrival of the periodic inspection time, the microphone
Computers can be used depending on the situation of the molding machine.
The operator determines whether or not inspection work has been completed at this time.
Periodic inspection screen showing current inspection information for input
Surface, preferentially displayed on the display device, or
A message prompting you to call the periodic inspection screen
The window is displayed on the display device, and the operator performs a periodic inspection.
Prompt, and the cumulative number of shots since the last inspection date.
Meter has reached the predetermined number of shots considered as
Before and after a certain number of days have passed since the last inspection date
At any time before the next scheduled inspection date, the operating
The periodic inspection screen can be called up by operating the
The above-mentioned setting called by this operator's operation
Check that the inspection has been completed
The operator inputs a checked signal
Then, the microcomputer updates this point to the latest point.
Recognized as the scheduled periodic inspection date, the next periodic inspection date (time
Period) is configured to be a reference for calculation.

[0011] Further , automatic display of the periodic inspection screen, and
And a message prompting you to call the periodic inspection screen
The labeling is pre-defined as normal working hours within one day.
It is configured so that it is performed only during the set time period.

[0012] Further , the microcomputer may be used periodically.
When it recognizes that the inspection date has arrived,
If it is entered, the priority inspection screen is displayed preferentially,
In addition, when in operation, call the periodic inspection screen.
Is configured to be displayed.

In the present invention, the inspection / monitoring processing section in the microcomputer performs the previous inspection based on the current cumulative shot number information from the shot number (operation number) counting section and the current date information from the calendar / clock function section. It is constantly monitored whether or not the total number of shots since the date (the time when the inspected signal was input by the operator last time) has reached a predetermined number, and whether or not the predetermined number of days has elapsed since the last inspection date. When the total number of shots from the previous inspection date has reached a predetermined number, or when the predetermined number of days has elapsed since the previous inspection date, the inspection monitoring processing unit determines that the current date is the periodic inspection date. If it is determined that this regular inspection date,
The inspection / monitoring processing unit determines that the machine is in a power-on state such as an automatic operation mode state and the time at that time is a predetermined time period within a day as a normal working time period (for example, AM8: (00 to 5:00), a message prompting the call of the periodic inspection screen is displayed in a window at an appropriate position on the display screen of the display device, for example. Thus, when the operator instructs the periodic inspection screen to be called by a key operation as appropriate, the inspection monitoring processing unit reads out the history information of the past periodic inspection date from the inspection history storage unit, and stores it in the current date information and the current cumulative shot number. The information is sent to the display control unit together with the information, and the display control unit combines, for example, at least the history information of the past periodic inspection with the current inspection information for the operator to input whether or not the inspection work has been completed at the current time. Is displayed on the display device. When only the message prompting the call of the periodic inspection screen is displayed, the automatic operation mode of the machine is continued. When it is determined that the regular inspection date has been reached, the inspection monitoring processing unit determines that the power is turned on from a state where the machine is in the power-off state, and the time at that time is determined in advance as a normal working time zone within one day. When the time period is within the set time zone, the above-mentioned periodic inspection screen is preferentially displayed on the display device, and a control signal is sent to the molding process control unit to prohibit the shift to the automatic operation mode.

The operator who has recognized that the periodic inspection is required by the automatic display of the above-mentioned periodic inspection screen or the message prompting the call of the periodic inspection screen is interrupted, After the continuous automatic operation of the number of lots is completed, or at the time of turning on the power, at that time, after performing a periodic inspection, input the inspected signal indicating that the inspection has been completed interactively on the periodic inspection screen, The inspection monitoring processing unit stores the date at that time and the total number of shots in the inspection history storage unit as the latest periodic inspection completed history information, and when the shift to the automatic operation mode is in the prohibited state, Release this. on the other hand,
At any time before the periodic inspection screen is automatically displayed, a predetermined periodic inspection work is performed, and thereafter, when the operator calls the periodic inspection screen and inputs the above-mentioned inspected signal in this state, the inspection monitoring process is performed. Similarly, the unit stores the date and the total number of shots at that time in the inspection history storage unit as the latest periodic inspection completed history information. Then, the inspection monitoring processing unit uses the latest inspected history information as the next periodic inspection date or the starting value of the cumulative number of shots.

[0015]

FIG. 1 is a block diagram showing an embodiment of the present invention.
4 to FIG. FIG. 1 is a simplified block diagram showing a control system of an injection molding machine according to one embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a machine (injection molding machine)
A microcomputer that controls the entire operation, etc., 2 is a sensor group composed of a large number of sensors provided in each part of the machine, and 3 is a large number of drives for controlling a large number of driving sources provided in each part of the machine. Driver group composed of driver circuits, 4
Reference numeral denotes a key input device provided on the front of the machine, and reference numeral 5 denotes a display device such as a color CRT display and a color LCD provided near the key input device 4.

The microcomputer 1 controls the entire molding process such as kneading / plasticizing / metering operation, injection operation, mold opening / closing operation, and eject operation, calculation / storage processing of measured data,
It executes a process of determining a defective product, a process of monitoring a periodic inspection, a process of controlling the output image of the display device 5, and the like. This microcomputer 1 actually has various I / O interfaces,
It is composed of those equipped with ROM, RAM, CPU, etc.
Although various processes are executed by various programs created in advance, in the present embodiment, for convenience of explanation, the molding condition setting storage unit 11, the molding process control unit 12, the inspection monitoring processing unit 13, the shot number counting unit 14, the calendar / Clock function unit 15, inspection history storage unit 16, and display control unit 17
The following description will be made assuming that the above is provided. In the present embodiment, at least the calendar / clock function unit 1
Reference numeral 5 is configured to be always operable even when the power of the machine (main power supply) is cut off, by receiving power supply from a battery or a sub power supply.

The molding condition setting storage unit 11 stores various operating condition values input from the key input device 4 or an external storage device in a rewritable form. The molding process control unit 12 Based on the created molding process control program and the setting condition values stored in the molding condition setting storage unit 11, while referring to the measurement information from the sensor group 2 and the timing information from the calendar / clock function unit 15, The corresponding drive source is driven and controlled via the driver group 3 to execute a series of molding steps, thereby executing an automatic continuous molding operation. For example, the shot count counting unit 14 receives, for example, a signal indicating the end of one shot from the molding process control unit 12 and, for example, accumulates the shot count (operation count) from the shipping stage of the machine for each shot. The data is updated and stored.

The calendar / clock function unit 15 counts microseconds, seconds, minutes, and hours based on a clock signal of a clock generation source incorporated therein, and based on the clock, outputs a date,
Month and year are updated. In the inspection history storage unit 16, inspection history information indicating inspection information performed in the past on the machine is stored under the control of the inspection monitoring processing unit 13, and the content of the inspection history storage unit 16 is Are read out by the inspection monitoring processing unit 13 as necessary.

The inspection monitoring processing unit 13 is based on a pre-created periodic inspection time search program, and the current cumulative shot number information from the shot number counting unit 14 and the current date and time information from the calendar / clock function unit 15 , And the stored data in the inspection history storage unit 16 to determine whether the total number of shots since the previous inspection date has reached a predetermined number,
Alternatively, whether or not a predetermined number of days have elapsed since the last inspection date is constantly monitored (at the initial stage, whether or not the total number of shots from the number of shots set to “0” at the machine shipping stage has reached the predetermined number) Or whether a predetermined number of days have passed since the date of the machine shipping stage). Then, when the total number of shots from the previous inspection date has reached a predetermined number, or when a predetermined number of days have elapsed since the previous inspection date, the inspection monitoring processing unit 13 determines that the current date is a periodic inspection date. It has become.

As described above, the reason for performing the search / determination of the periodic inspection time not only based on the determination of the number of days since the previous inspection date but also on the determination of the total number of shots since the previous inspection date is as follows. Before the specified number of days have passed,
Due to factors such as 24-hour operation and high cycle operation, the scheduled inspection time (scheduled inspection date) will be reached even if the number of shots normally exceeded in the interval from the previous periodic inspection date to the next periodic inspection date is exceeded It is because it is possible to make an accurate timing determination.

If it is determined that the date of the periodic inspection is
The inspection and monitoring processing unit 13 determines that the machine is in a power-on state such as an automatic operation mode state and the time at that time is a predetermined time period within a day as a normal working time period (for example, AM8). : 00 to 5:00 PM)
A message prompting the user to call the periodic inspection screen is displayed in a window, for example, at an appropriate position on the display screen of the display device, and the automatic operation mode of the machine is continued. And
When the operator who recognizes the arrival of the periodic inspection date by the message display instructs to call the periodic inspection screen by key operation as appropriate, the inspection monitoring processing unit 13 stores the history information of the past periodic inspection date from the inspection history storage unit 14. The readout is sent to the display control unit 17 together with the current date information and the current cumulative shot number information, and the display control unit 17 allows the operator to input the history information of the past periodic inspection and whether the inspection work has been completed at the present time. The display device 5 displays a periodic inspection screen that shows the current inspection information for performing the inspection and the inspection date arrival information indicating that the current date is the current periodic inspection date (indicating the type of the periodic inspection described later). Display above.

When it is determined that the date is a regular inspection date,
The inspection / monitoring processing unit 13 is powered on from a state in which the machine is in the power-off state, and the time at that time is a predetermined time period within a day as a normal working time period (for example, AM8: (00 to 5:00), the same periodic inspection screen as described above is preferentially displayed on the display device 5, and a control signal is sent to the molding process control unit 12 to shift to the automatic operation mode. Prohibit. The reason for this is that automatic operation is not performed when the power is turned on, and there is often no problem even if priority is given to periodic inspection work before starting production, and it is desirable to do so. Because.

If it is determined that the date of the periodic inspection is
The time at that time is a predetermined time zone within a day as a normal working time zone (for example, AM 8:00 to PM 5: 0).
When the value is out of the range from 0), the inspection monitoring processing unit 13 does not perform any processing for outputting a message prompting the call of the periodic inspection screen or the periodic inspection screen, and prohibits the shift to the automatic operation mode. No processing is performed. The reason for this is that in many cases it is not expected that an operator will be present at the production site during times other than normal working hours (for example, at night), so that a periodic inspection screen is output to prompt periodic inspection work. However, this cannot be dealt with immediately, and it only confuses guards and the like who cannot perform inspection work.

Next, the types of the periodic inspection days will be described. In the present embodiment, as a general periodic inspection including various inspection items, a one-month periodic inspection date, a six-month periodic inspection date,
There are three types of monthly regular inspection dates and, independently of these, grease refueling inspection dates every six months for grease refueling. The reason why the inspection monitoring processing unit 13 determines that the one-month regular inspection date has arrived is that, for example, in the present embodiment, the cumulative number of shots from the previous one-month regular inspection date is 83333.
The case where the number of shots exceeds 10,000 shots or the case where 30.4375 days have passed since the last one month regular inspection date, and the judgment that the six month regular inspection date has arrived is the same as the previous six month regular inspection date If the cumulative number of shots from the regular inspection date exceeds 500,000 shots, or if six months have passed since the previous six-month regular inspection date, and similarly, the 12-month regular inspection date has arrived. Judgment is made when the total number of shots from the previous 12-month regular inspection date exceeds 1 million shots, or 1 from the previous 12-month regular inspection date.
Two months have elapsed. In addition, the inspection monitoring processing unit 13 determines that the grease refueling inspection date has come,
Cumulative number of shots since last grease refueling inspection date is 50
This is the case where the number of shots exceeds 10,000 shots, or the case where six months have passed since the last grease refueling inspection date.

The inspection monitoring processor 13 recognizes the arrival of the periodic inspection date of the above-described type and, under the condition that the above-mentioned periodic inspection screen is preferentially displayed, the display controller 1
7, a periodic inspection screen as shown in FIG. 2 is displayed on the display device 5. In addition, the inspection monitoring processing unit 13
Recognizes the arrival of the periodic inspection date of the above type, and
Under the condition that the message prompting the call of the periodic inspection screen is preferentially displayed, this message is displayed in a window, for example, at the top of the screen, regardless of the type of screen being displayed. In other words, for example, if the month is a regular inspection date, a message such as "One month regular inspection date. After checking each part, set completion on the inspection screen." Is displayed, a message such as "Grease refueling date. After lubrication, set completion on the inspection screen" is also displayed. Then, when the operator instructs the call of the periodic inspection screen in response to the message prompting the call of the periodic inspection screen, the display control unit 17 similarly displays on the display device 5 as shown in FIG. Display the periodic inspection screen. At this time, although not shown in FIG. 2, the type of the periodic inspection date and a message urging the periodic inspection work are displayed in a window on, for example, an upper portion of the periodic inspection screen. In other words, for example, if the month is a regular inspection date, a message such as "One month regular inspection date. After checking each part, set completion on the inspection screen." If
A message such as "Grease refueling date. After lubrication, set completion on the inspection screen." When the operator calls the periodic inspection screen in response to the message, the window display of the inspection date arrival message indicating that the current date is the current periodic inspection date (indicating the type of the periodic inspection) may be omitted. It is possible.

As shown in FIG. 2, in the left half on the periodic inspection screen, inspection history information for the past periodic inspection dates of 1, 6, and 12 months, the current date and the number of shots (the number of operations) are displayed. The "Regular checklist" displayed in the form of a list is displayed. In the right half of the periodic check screen, the check history information for the past grease refueling check date, the current date and the number of shots (number of operations) are displayed. A "grease lubrication inspection table" in the form of a list is displayed. Inspection history information for the past is associated with the number of inspections, and is marked with “Done” indicating that the periodic inspection has been completed (“Done 1” for the monthly regular inspection date, and “Done 1” for the six-month periodic inspection date). ("6", 12-month regular inspection date is "12", and grease refueling inspection date is "Complete.")
, The date of the periodic inspection date, and the cumulative shot count (operating count) are displayed. On the left side of the current date and the number of shots (the number of operations), the number of times of the current inspection and the fact that the periodic inspection has not been completed are indicated. For example,
"Blank", "Not displayed" mark, "Blanking" blinking, etc. are shown. (This field is a field for inputting the current inspected information for the operator to input whether or not the inspection work has been completed at this time. ing). The “periodic inspection table” and “grease lubrication inspection table” are each 10 times (10 times) including the current date and the number of shots (the number of operations).
Although the display for the line is initially performed, it is also possible to scroll and display the past data that does not appear on the display, if necessary.

As described above, in this embodiment, on the periodic inspection screen, a field for inputting the current inspection completed information for the operator to input whether or not the inspection work has been completed at the present time, and a message prompting the current periodic inspection. In addition, since the past inspection history information can be checked at a glance, the inspection history management becomes simple and easy, which is very useful as reference data for machine maintenance. Further, since there is no need to separately prepare an inspection history management table in paper, there is no burden on the operator. Furthermore, since the "grease refueling inspection table" is displayed independently, grease refueling inspection, which is an important item in the periodic inspection items, can be managed independently and with good visibility.

The operator who recognizes that the periodic inspection is required by the automatic display of the periodic inspection screen as described above or the message prompting the call of the periodic inspection screen is interrupted by the operator, or after a predetermined lot has been stopped. After a number of continuous automatic operations are completed, or at the time of power-on, periodic inspections are performed, and inspections are completed interactively with the automatic display or on the periodic inspection screen called up by the operator's instruction. Is input by the key input device 4 (when the cursor is moved to "Done" in the input designation field of FIG. 2 and the confirmation key or the like is pushed), the inspection monitoring processing unit 13 outputs the date and time at that time. The cumulative number of shots is stored in the inspection history storage unit 16 as the latest periodic inspection completed history information. When the shift to the automatic operation mode has been prohibited, the inspection monitoring processing unit 13 sends a control signal to the molding process control unit 12 to enable the shift to the automatic operation mode. Further, the inspection monitoring processing unit 13 displays a message “The periodic inspection completion mark has been set” on the periodic inspection screen, and displays the message (the current periodic inspection) next to the current date and the number of shots (the number of operations). Next to the number)),
The "done" display mark is displayed. And after this,
The inspection monitoring processing unit 13 uses the latest inspected history information newly stored in the inspection history storage unit 16 as the next periodic inspection date or the starting value of the cumulative shot number, and searches for the periodic inspection time as described above. Processing will continue.

On the other hand, in a state in which the periodic inspection screen is automatically displayed or a message prompting the call of the periodic inspection screen is displayed, the inspection work is performed later (for example, due to a time constraint from the production schedule). Or at a later date). In this case,
Automatically displayed or interactive with the called periodic inspection screen,
The operator inputs an inspection hold signal indicating that the inspection is to be postponed by using the key input device 4 (moves the cursor to “hold” in the input designation column in FIG. 2 and pushes a confirmation key or the like), and the inspection monitoring processing unit 13 To inform that the inspection has been suspended. As a result, the inspection monitoring processing unit 13 sets a “temporary hold mark” on the periodic inspection screen.
Is displayed, and "pending" is displayed next to the number of periodic inspections that has arrived this time on the periodic inspection screen. When the shift to the automatic operation mode has been prohibited, the inspection monitoring processing unit 13 sends a control signal to the molding process control unit 12 to enable the shift to the automatic operation mode.

In this embodiment, even after the inspection hold signal is input, the periodic inspection screen is continuously displayed unless the key input device 4 instructs to switch the display mode. In the present embodiment, when the display mode is switched to another display mode after the input of the inspection hold signal, the periodic inspection screen is not called unless the operator gives an instruction. At the time of switching to another display mode, the periodic inspection screen is called at a predetermined timing only for a predetermined time to call attention, or the above message for prompting the call of the periodic inspection screen is displayed only for a predetermined time. It may be displayed to call attention. Also, in the present embodiment, the power of the machine is turned off after notifying that the inspection is to be temporarily suspended, and the periodic inspection screen is not automatically displayed when the power is subsequently turned on at any time. When the power of the machine is turned off after notifying that the machine is to be temporarily suspended, and then the power of the machine is started between, for example, 8:00 AM and 5:00 PM, the periodic inspection screen is preferentially called up. In this way, a message indicating that the inspection date has arrived is output, and a display indicating that the inspection has not been completed is displayed next to the power-on date and the cumulative shot count (operating count). (Temporary hold entered last time may be canceled).

Further, in this embodiment, at an arbitrary point in time before the periodic inspection screen is automatically displayed, the periodic inspection screen can be called up by a predetermined key operation using the key input device 4. This is to deal with cases where the operator is expected to automatically display the periodic inspection screen in the near future, and want to complete the periodic inspection ahead of time before entering long-term automatic continuous operation from the viewpoint of the production schedule. It is provided. When such a request is made, a predetermined periodic inspection work is performed at an arbitrary point before the periodic inspection screen is automatically displayed, and thereafter, the operator calls the periodic inspection screen. Then, in this state, when the above-mentioned inspection completed signal is inputted by the key input device 4, the inspection monitoring processing unit 13 similarly uses the date and the total number of shots at that time as the latest periodic inspection completed history information as the inspection history. It is stored in the storage unit 16. Then, the inspection monitoring processing unit 13 uses the latest inspected history information newly stored in the inspection history storage unit 16 as a next periodic inspection date or a starting value of the cumulative number of shots. Continues search processing for.

In this embodiment, when the confirmation key or the like is pushed after the cursor is moved to "Erase" in the input designation column in FIG. 2, the last line of the "periodic inspection table" or "grease refueling inspection table" is displayed. The data is deleted, and the corresponding data in the inspection history storage unit 16 is also deleted.
When such an erasing mode is provided, if the inspection is performed several days after the input indicating that the inspection is to be temporarily suspended, the “suspension” can be erased and “done” can be input, and the inspection completed signal can be erroneously input. You can deal with it if you enter it.

FIG. 3 is a simplified flowchart showing the flow of processing by the inspection and monitoring processing unit 13 when the machine is in operation. It should be noted that in the flow of FIG. 3, the control processing according to the above-mentioned time zone is not used properly and is simplified. In step ST1 of FIG. 3, it is asked whether or not the regular inspection time has come. If YES, step S1 is executed.
The process proceeds to T2, and if NO, the process proceeds to step ST7 to continue the operation without displaying any information on the periodic inspection on the display screen. In step ST2, a message prompting the above-described periodic inspection screen is output, and the process proceeds to step ST3. In step ST3, it is determined whether or not the call of the periodic inspection screen has been instructed by the operator. If YES, the process proceeds to step ST4, and if NO, the process proceeds to step ST7. In step ST4, the above-described periodic inspection screen is displayed, and the process proceeds to step ST5. In step ST5, it is determined whether or not the above-mentioned inspection suspension signal has been input, and YES
Then, in step ST8, a message "Temporary hold mark has been set." Is displayed, and then step S8.
In T10, the date and the total number of shots are stored in the inspection history storage unit 16
And proceeds to step ST7, and if NO, proceeds to step ST6. In step ST6, it is asked whether or not the above-mentioned inspection completed signal has been input. If YES, in step ST9 "the completion mark of the periodic inspection has been set."
Is displayed, the date and the total number of shots are stored in the inspection history storage unit 16 in step ST10, and the process proceeds to step ST7. If NO, the process directly proceeds to step ST7.

FIG. 4 is a simplified flowchart showing the flow of processing by the inspection and monitoring processing unit 13 when the machine is powered on. It should be noted that the flow of FIG. 4 is simplified as there is no separate use of the control processing according to the time zone. In step ST11 of FIG. 4, it is asked whether or not the regular inspection time has come. If YES, step S11 is executed.
The process advances to T12, and if NO, the process advances to step ST19 to perform a normal operation based on an instruction of an operator or the like. In step ST12, the above-described periodic inspection screen is output,
Proceed to step ST13. In step ST13, it is determined whether or not the above-described inspection hold signal has been input.
Then, in step ST14, a message "Temporary hold mark has been set." Is displayed, and in step ST17, the date and the total number of shots are stored in the inspection history storage unit 1.
6 and the process proceeds to step ST19. If NO, the process proceeds to step ST15. In step ST15, it is asked whether or not the above-mentioned inspection completed signal has been input. If YES, a message that "the completion mark of the periodic inspection has been set" is displayed in step ST16. The number of shots and the inspection history storage unit 1
6 and proceeds to step ST19. If NO, the process inhibits the machine from shifting to the automatic operation mode in step ST18, and then returns to step ST13.

The effects of this embodiment described in detail above are as follows. Not only the number of shots since the previous inspection date but also the total number of shots from the previous inspection date is determined and searched for / determined for the periodic inspection time. In addition, if the number of shots normally exceeded in the interval from the previous periodic inspection date to the next periodic inspection date due to factors such as 24-hour operation and high cycle operation, the periodic inspection period (periodic inspection date) Can be determined, and accurate timing can be determined. On the periodic inspection screen, the past inspection history information can be checked at a glance, along with a field for inputting the current inspection completed information for the operator to enter whether or not the inspection work has been completed at the current time, and a message prompting the current periodic inspection. So you can
Inspection history management becomes simple and easy, which is very useful as reference data for machine maintenance. Further, since there is no need to separately prepare an inspection history management table in paper, there is no burden on the operator. Since the "grease refueling inspection table" is displayed independently, grease refueling inspection, which is an important item in the periodic inspection items, can be managed independently and with good visibility. At any time before the periodic inspection screen is automatically displayed,
Performing the prescribed periodic inspection work, calling the periodic inspection screen and inputting the inspected signal, the date at that point and the total number of shots are stored as the latest periodic inspection history information. Even when the periodic inspection has been completed at an arbitrary time before the display, the time of the next periodic inspection can be set accurately. Since the automatic display of the periodic inspection screen is performed only during normal working hours within one day, it is possible to eliminate the confusion caused by displaying the periodic inspection screen at night or the like. On the periodic inspection screen, besides "Complete",
Since the "erase" mode is provided, various situations can be handled.

[0037]

As described above, according to the present invention, it is possible to accurately determine that the time required for the periodic inspection has been reached, and to automatically display the time of the periodic inspection, or to call the periodic inspection screen. On the periodic inspection screen where the operator is called in response to the message prompting the operator, a field for inputting the current inspection completed information for the operator to input whether or not the inspection work has been completed at the present time is displayed. -It is convenient and convenient for maintenance management. Also, if it is determined that it is time to
In accordance with the condition of the molding machine,
Display the inspection screen on the display device by priority, or
A window prompting you to call the periodic inspection screen
To be shown, for example, during driving
Display mode that is difficult to switch without operator's intention
Window, only the message is displayed in a window.
Can be confused, which makes the operator confused
At a convenient timing without giving any inconvenience
Periodical inspection can be encouraged. In addition, even if the inspection is completed at any time before the time when the periodic inspection is necessary,
By inputting the checked signal at this arbitrary point,
The date at this point and the cumulative shot count value can be used as a reference for calculating the next periodic inspection date (time) .
Is expected to automatically display the periodic inspection screen in the near future.
Automatic operation for a long time
Before moving on, you may want to complete a periodic inspection in advance.
Can handle the demands of the perlator. In addition, a periodic inspection screen and a message prompting the user to call it can be automatically output only during a predetermined period of normal working hours within one day.
Waste of displaying inspection screens and messages,
You can eliminate the confusion that is given to the folks. As a whole, a molding machine having an extremely convenient periodic inspection instruction function can be provided, and its value is enormous.

[Brief description of the drawings]

FIG. 1 is a simplified block diagram showing a control system of an injection molding machine according to an embodiment of the present invention.

FIG. 2 is a view showing a periodical inspection screen 1 according to the first embodiment of the present invention.
It is explanatory drawing which shows an example.

FIG. 3 is an explanatory diagram showing a simplified processing flow during a machine operation operation by the inspection monitoring processing unit of FIG. 1;

FIG. 4 is an explanatory diagram showing a simplified processing flow when the power is turned on by the inspection monitoring processing unit of FIG. 1;

FIG. 5 is an explanatory diagram showing a grease refueling inspection table according to the related art.

[Explanation of symbols]

 Reference Signs List 1 microcomputer (microcomputer) 2 sensor group 3 driver group 4 key input device 5 display device 11 molding condition setting storage unit 12 molding process control unit 13 inspection monitoring processing unit 14 shot count counting unit 15 calendar / clock function unit 16 inspection history storage Department

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-3-118131 (JP, A) JP-A-58-223594 (JP, A) JP-A-2-173803 (JP, A) JP-A-4- 71820 (JP, A) JP-A-4-29815 (JP, A) JP-A-5-345343 (JP, A) JP-A-62-257744 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B29C 45/76-45/84 G05B 23 / 02,9 / 02 B23Q 41/08 B66B 3 / 00,5 / 00

Claims (3)

(57) [Claims] 1. A microcomputer for controlling the entire molding machine, a display device for displaying various mode screens by an output of the microcomputer, and an input device, wherein the microcomputer has a built-in shot. the number of times the call number of shots total from the last inspection date by the counting means of (running times) has reached a predetermined number, it was until a predetermined number of days passed since the last inspection date by a calendar / clock function means built in itself to that the periodic inspection date has arrived, if you recognize any of the earlier expression of regularly point
It determines that the arrival of the test period, the microcomputer Zhou being placed the molding machine
Depending on the situation, a regular inspection screen representing the current inspection information for the operator to input whether or not the inspection work has been completed at the present time may be preferentially displayed on the display device, or the regular inspection screen may be displayed. a message prompting a call to the window displayed on the display device, so as to encourage regular inspection to the operator, also, the number of shots of the total from the previous inspection date of the next regular point
Before reaching the predetermined number of shots regarded as the inspection time, and
The next periodic inspection date after a specified number of days have passed since the last inspection date
At any point before reaching
The periodic inspection screen can be called up by
Table of the periodic inspection screen called up by data operation
In the status shown, the completed signal indicates that the inspection has been completed.
The operator inputs the number and the micro
The computer uses this date as the date of the last serviced
For the next periodic inspection date (time)
Molding machine having a regular inspection instruction function, characterized in that as a reference. 2. The periodic inspection screen according to claim 1, wherein the periodic inspection screen is displayed automatically.
The message prompting you to call is automatically displayed within one day.
Runs only during the predetermined working hours
The periodic inspection instruction function is characterized by
Having molding machine. 3. The microcomputer according to claim 1, wherein the microcomputer has received a regular inspection date.
When the power is turned on,
The serial periodic inspection screen to give priority display, also, place of operation dynamic Sakuchu
A message prompting you to call the periodic inspection screen
Periodic inspection indicator characterized by displaying
A molding machine with functions.