JPH0728522A - Forming machine with periodic inspection instructing function - Google Patents

Abstract

PURPOSE:To enable an operator to visually recognize past inspection history information on a called periodic inspection picture by displaying the periodic inspection picture or the like at the time of periodic inspection is necessary. CONSTITUTION:When an inspection monitor processing part 13 recognizes coming of the periodic inspection day of a classification and is in the condition that the periodic inspection picture should be preferentially displayed, the periodic inspection picture is displayed on a display device 5 by a display control part 17. When the inspection monitor processing part 13 recognizes coming of the periodic inspection day of a classification and is in the condition that a message to prompt the operator to call the periodic inspection picture should be preferentially displayed, this message is displayed in a window in the upper part or the like of the picture independently of the state of the displayed picture classification. When the operator instructs call of the periodic inspection picture in response to this message, the periodic inspection picture is displayed on the display device 5 by the display control part 17.

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 regular inspection instruction function, and more particularly, to automatically prioritize the fact that a regular inspection date has arrived on a display device to prompt an operator to perform a regular inspection. The present invention relates to a molding machine such as an injection molding machine, a foam molding machine, or a die casting machine.

[0002]

2. Description of the Related Art Recent molding machines, such as injection molding machines, are mainly those controlled by a microcomputer (hereinafter referred to as a microcomputer). Such a microcomputer-controlled injection molding machine is equipped with a display device such as a color CRT display. With this display device, various molding operation condition setting screens for automatic molding operation, various measurement data display screens, Various mode screens such as various alarm display screens and periodic inspection screens are displayed.

When the microcomputer recognizes the arrival of a predetermined regular inspection day, the regular inspection screen among the above-mentioned mode screens is automatically and preferentially displayed on the display device in order to prompt the operator to perform the regular inspection. It was like this. By providing such a display mode of the regular inspection screen, it is possible to entrust the molding machine itself to the regular inspection schedule management which the operator or the person in charge of the site performed according to the inspection schedule management table and the like, which greatly improves the convenience. In addition,
Such a transition to the display mode of the regular inspection screen is performed only when the microcomputer recognizes that the predetermined regular inspection date has arrived by the calendar / clock function means incorporated therein. It was.

Here, as a conventional technique relating to a molding machine provided with the above-described display mode of the regular inspection screen, for example, Japanese Patent Application Laid-Open No. 2-211968 previously proposed by the applicant of the present application.
Japanese Patent Laid-Open No. 3-118131.

[0005]

By the way, in the above-mentioned prior art, the microcomputer performs the periodical inspection only when it recognizes that the predetermined periodical inspection date has arrived by the calendar / clock function means incorporated therein. It was supposed to enter the display mode of the inspection screen. Therefore, since instructions for regular inspection cannot be given due to the accumulation of the number of shots (number of times of operation), the regular inspection day is set on the assumption that 24-hour operation or high cycle operation is performed and normal operation is performed. However, there was a problem that this could not be dealt with even if regular inspection was required.

Further, only when the regular inspection screen is displayed, if the inspected signal indicating that the regular inspection is completed is not input interactively with the regular inspection screen, the microcomputer considers that the regular inspection is completed. Since there is no problem, there is a problem that the regular inspection screen will be displayed on the day of the regular inspection day even if the regular inspection is performed before the regular inspection date. There was a problem that the history information of having performed was not known later. Therefore, if a regular inspection is performed before the regular inspection date, the next regular inspection time must be set by adding the number of days from the date of the latest regular inspection or the number of shots from this time. It was also pointed out that what should be done by accumulating (the number of times of operation) becomes longer than the regular regular inspection interval, which may adversely affect the machine life.

Further, since the regular inspection screen according to the prior art only displays the fact that the regular inspection date has arrived, even if a service person wants to know the history information of past regular inspections, I couldn't handle it at all. Therefore, the grease refueling inspection, which is an important item in the regular inspection items, was history-managed by, for example, pasting a grease refueling inspection table as shown in Fig. 5 on the machine. It was pointed out that it was troublesome.

Furthermore, in the prior art, since the regular inspection screen is displayed regardless of the time, the regular inspection display screen is displayed even at night during unmanned automatic continuous operation. Therefore, it was pointed out that outputting the regular inspection display screen when there is no operator in this way is wasteful.

Therefore, the 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 regular inspection screen or display a message to call the regular inspection screen when the cumulative number of shots or the number of days reaches the time when the regular inspection is required. Therefore, the display form is convenient in terms of management so that the past inspection history information can be visually recognized together on the called periodic inspection screen. Further, another object of the present invention is that, when the inspection is completed at any time before the time when the periodic inspection is necessary, the periodic inspection screen can be called at this arbitrary time to input the inspection completed signal. At the same time, the time when the inspected signal is input is recognized as the latest inspected regular inspection day, and the date at that time and the cumulative shot count value are used as the basis for calculating the next regular inspection day (time). It is in. Another object of the present invention is to display the regular inspection screen or display a message prompting the calling of the regular inspection screen only during a predetermined working time period within a day. 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 the output of the microcomputer, and an input device. In a molding machine with a regular inspection instruction function equipped with, the microcomputer recognizes that the cumulative number of shots from the previous inspection date has reached a predetermined number by the shot number (operating number) counting means built in itself. Alternatively, if the calendar / clock function means built in itself recognizes that the regular inspection date has arrived after a predetermined number of days has passed since the previous inspection date, the microcomputer at least has a history of past regular inspections. A regular inspection screen showing the information and the current inspection information for the operator to enter whether or not the inspection work has been completed at the present time.
Either the priority display is displayed on the display device, or a message prompting the calling of the regular inspection screen is displayed to prompt the operator to perform the regular inspection.

Further, the periodic inspection screen can be called up at any time by the operation of the operator, and in the display state of the periodic inspection screen called by the operation of the operator, the operator inputs an inspected signal to make the microcomputer Recognizes this point in time as the latest inspected regular inspection date and uses it as the basis for calculating the next regular inspection date (time).

Further, the automatic display of the periodic inspection screen or the message prompting the calling of the periodic inspection screen is made to be performed only in a predetermined time period as a normal working time period in one day.

[0013]

[Operation] The inspection and monitoring processing unit in the microcomputer uses the current cumulative shot number information from the shot number (operating number) counting unit and the current date information from the calendar / clock function unit to determine the last inspection date (previous operator It constantly monitors whether or not the total number of shots from the time point when the inspected signal is input) has reached a predetermined number and whether or not a predetermined number of days have passed since the previous inspection date. Then, if the cumulative number of shots from the previous inspection date has reached a predetermined number, or if the predetermined number of days has elapsed from the previous inspection date, the inspection monitoring processing unit determines the current date as the regular inspection date. When it is determined that this is the regular inspection date, the inspection monitoring processing unit determines that the machine is in the power-on state such as the automatic operation mode state, and the time at that time is set in advance as a normal working time zone within one day. Specified time zone (for example, AM8: 00-PM
When it is within 5:00), a message prompting the calling of the regular 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 gives an instruction to call the periodic inspection screen by operating the keys as appropriate, the inspection monitoring processing unit reads out the history information of the past regular inspection days from the inspection history storage unit, and uses this as the current date information and the current cumulative shot number. The information is sent to the display control unit together with the information, and at least the past periodic inspection history information and the present inspection information for the operator to input whether or not the inspection work has been completed are displayed together by the display control unit. Display the regular inspection screen on the display device.
When only the message prompting the calling of the regular inspection screen is displayed, the automatic operation mode of the machine is continued. If it is determined to be the regular inspection date, the inspection monitoring processing unit determines that the machine is powered on from the power-off state, and the time at that time is preset as the normal working hours within one day. When it is within the specified 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 recognizes that the periodical inspection is necessary by the automatic display of the periodical inspection screen or the automatic display of the message prompting the calling of the periodical inspection screen, after interrupting the automatic operation or at a predetermined time. After the continuous automatic operation of the number of lots is completed, or at the time of turning on the power, after performing the periodic inspection, if you input the inspected signal indicating that the inspection has finished interactively on the periodic inspection screen, The inspection monitoring processing unit stores the date and the cumulative number of shots at that time in the inspection history storage unit as the latest periodic inspection history information, and when the transition to the automatic operation mode is prohibited, Release this. on the other hand,
Perform the prescribed periodic inspection work at any time before the periodic inspection screen is automatically displayed, and after that, if the operator calls the periodic inspection screen and inputs the above-mentioned inspected signal in this state, the inspection monitoring process will be performed. Similarly, the section stores the date and the total number of shots at that point in the inspection history storage section as the latest periodic inspection history information. Then, the inspection monitoring processing unit uses the latest inspection history information as the next scheduled inspection date or the calculated value of the cumulative number of shots.

[0015]

Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a simplified block diagram of a control system of an injection molding machine according to an embodiment of the present invention.

In FIG. 1, 1 is a machine (injection molding machine)
A microcomputer that controls the overall operation and the like, 2 is a sensor group including 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 drive sources arranged in each part of the machine. Driver group composed of driver circuits, 4
Is a key input device disposed on the front surface of the machine, and 5 is a display device disposed in the vicinity of the key input device 4 and made up of, for example, a color CRT display or a color LCD.

The microcomputer 1 controls the entire molding process such as kneading / plasticizing / measuring operation, injection operation, mold opening / closing operation, ejecting operation, calculation / storing processing of measured data, non-defective products /
Defective product determination processing, periodic inspection monitoring processing, output image control processing of the display device 5, and the like are executed. This microcomputer 1 actually uses 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 this 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 / The following description will be made assuming that the clock function unit 15, the inspection history storage unit 16, and the display control unit 17 are provided. In this embodiment, at least the calendar / clock function unit 15
Is powered by a battery or sub power supply even when the power (main power) of the machine is cut off, and can always operate.

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, and the molding process control unit 12 stores the molding process control unit 12 in advance. 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 drive-controlled via the driver group 3 to execute a series of molding strokes, thereby executing an automatic continuous molding operation. Then, the shot number counting unit 14 receives, for example, a signal indicating the end of one shot from the molding process control unit 12, and the accumulated value of the number of shots (operating number) from the shipping stage of the machine is calculated for each shot, for example. It will be updated and stored.

The calendar / clock function section 15 measures microseconds, seconds, minutes, and hours by a clock signal from a clock source built in itself, and based on this, a date,
Month and year are updated. The inspection history storage unit 16 stores inspection history information indicating inspection information applied to the machine in the past under the control of the inspection monitoring processing unit 13, and the contents of the inspection history storage unit 16 are as follows. Is read by the inspection and monitoring processing unit 13 as necessary.

The inspection / monitoring processing unit 13 is based on a regular inspection time search program created in advance, 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, whether or not the cumulative number of shots from the previous inspection date has reached a predetermined number,
Alternatively, it constantly monitors whether or not a predetermined number of days have passed since the last inspection date (in the initial stage, whether or not the cumulative total from the number of shots set to "0" at the machine shipping stage has reached a predetermined number). Or, it is monitoring whether a predetermined number of days have passed from the date of the machine shipping stage). Then, when the cumulative number of shots from the previous inspection date reaches a predetermined number, or when a predetermined number of days have passed from the previous inspection date, the inspection monitoring processing unit 13 determines the current date as a regular inspection date. It is like this.

As described above, not only the number of days from the previous inspection date but also the cumulative number of shots from the previous inspection date is used to search and determine the periodic inspection time. Before the specified number of days have passed,
Due to factors such as 24-hour operation and high cycle operation, even if the number of shots that is normally assumed in the interval from the previous regular inspection day to the next regular inspection day is exceeded, the regular inspection time (regular inspection date) comes. This is because it is possible to make an accurate determination as to the timing.

In addition, when it is determined that the regular inspection date,
The inspection 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 working time zone within a day (for example, AM8). : 00-PM5: 00),
A message prompting the calling of the periodic inspection screen is displayed on the display screen of the display device at an appropriate position, for example, and the automatic operation mode of the machine is continued. And
When the operator who recognizes the arrival of the regular inspection day by the above message display instructs to call the regular inspection screen by appropriately operating the key, the inspection monitoring processing unit 13 stores the history information of the past regular inspection days from the inspection history storage unit 14. The information is read and sent to the display control unit 17 together with the current date information and the current cumulative shot number information, and the operator inputs the history information of the past regular inspection and whether or not the inspection work is completed at the present time. The display device 5 displays a periodic inspection screen in which the inspection information at the present time for performing the inspection and the inspection date arrival information indicating that the present is the current periodic inspection date (indicating the type of periodic inspection described below) are displayed together. Display on top.

When it is determined that the inspection date is regular,
The inspection / monitoring processing unit 13 is powered on from a state where the machine is in a power-off state, and the time at that time is a predetermined working time zone within a day (for example, AM8: 00 ~ PM5: 00), the periodical inspection screen similar to the 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 doing this is that automatic operation is not started when the power is turned on, and there are many cases where there is no problem even if prioritizing regular inspection work before starting production, and it is desirable to do so. Because.

When it is determined that the inspection date is regular,
The time at that time is a predetermined time zone within a day as a normal working time zone (for example, AM8: 00 to PM5: 0).
When it is out of 0), the inspection and monitoring processing unit 13 does not perform any processing for outputting a message for prompting the calling of the periodic inspection image or the periodic inspection screen, and prohibits the transition to the automatic operation mode. No processing is performed. The reason for doing this is that in many cases it is not possible to expect an operator to be at the production site during times other than normal working hours (for example, at night), and a regular inspection screen is output to encourage regular inspection work. However, it is not possible to deal with it immediately, and it will only confuse the guard man who cannot carry out the inspection work.

Next, the types of regular inspection days will be described. In this embodiment, as a general regular inspection including various inspection items, there are three types of one-month regular inspection day, six-month regular inspection day, and twelve-month regular inspection day, and grease lubrication independently of these. The grease refueling inspection date is set every 6 months. In the present embodiment, it is determined by the inspection monitoring processing unit 13 that the one-month regular inspection date has arrived, for example, when the cumulative number of shots from the previous one-month regular inspection date exceeds 83,3330,000 shots. Or, if 30.4375 days have passed since the last month's regular inspection date,
It is judged that the 6-month regular inspection date has arrived at the last 6
The cumulative number of shots from the monthly regular inspection date exceeds 500,000 shots, or 6 months have passed since the previous 6-month regular inspection date. Similarly, the 12-month regular inspection date has arrived. It is determined that the total number of shots from the previous 12-month regular inspection date exceeds 1 million shots, or 12 months have elapsed from the previous 12-month regular inspection date. Further, the inspection monitoring processing unit 13 determines that the grease refueling inspection date has arrived when the cumulative number of shots from the last grease refueling inspection date exceeds 500,000 shots, or from the last grease refueling inspection date. This is the case when 6 months have passed.

When the inspection / monitor processing unit 13 recognizes the arrival of the above-described type of regular inspection day and is under the condition that the above-described regular inspection screen is preferentially displayed, the display control unit 1
A regular inspection screen as shown in FIG. 2, for example, is displayed on the display device 5 by 7. Also, the inspection and monitoring processing unit 13
Recognizes the arrival of the above-mentioned type of regular inspection day, and
If there is a condition for preferentially displaying a message prompting the calling of the regular inspection screen, this message is displayed in a window, for example, at the top of the screen, regardless of the type of screen being displayed. That is, for example, if it is a one-month regular inspection day, a message such as "One-month regular inspection day. After inspecting each part, set completion on the inspection screen." If it is, a message such as “It is a grease refilling day. Please set completion on the inspection screen after replenishing grease.” Is also displayed. Then, when the operator gives an instruction to call the regular inspection screen in response to the message prompting the calling of the regular 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 regular inspection day and a message prompting the regular inspection work are also displayed in a window on the upper portion of the regular inspection screen, for example. That is, for example, if it is a one-month regular inspection day, a message such as "One-month regular inspection day. After inspecting each part, set completion on the inspection screen." If
A message such as "Grease lubrication day. Please set completion on the inspection screen after grease lubrication." Is also displayed. If 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 periodic inspection date is now (indicating the type of periodic inspection) may be omitted. It is possible.

As shown in FIG. 2, in the left half of the regular inspection screen, the inspection history information for the past 1, 6 and 12 months regular inspection days, the current date and the number of shots (the number of operations) are shown. The "Periodic inspection table" shown in the form of a list is displayed, and the past half of the history of grease replenishment inspection information, the current date and the number of shots (number of operations) are displayed in the right half of the periodic inspection screen. A "grease lubrication checklist" in the form of a list is displayed. Each inspection history information for the past is associated with the number of inspections and indicates that the periodic inspection has been completed. "Done" display mark (1 month regular inspection day is "Done 1", 6 months regular inspection day is "Done 6", "Done 12" for 12-month regular inspection day, "Done" for grease refueling inspection day)
, And the date of the regular inspection day and the cumulative number of shots (number of times of operation) are displayed. In addition, on the left side of the current date and the number of shots (the number of times of operation), the number of times of inspection this time and the fact that the regular inspection has not been completed, for example,
“Blank”, “Not yet” display mark, “Blanking” flashing, etc. are displayed (this field is an input field of the current checked information for the operator to input whether or not the inspection work has been completed at this time). ing). In addition, the above "regular inspection table" and "grease refueling inspection table" are for 10 times (10 times each) including the current date and the number of shots (number of times of operation).
Initially, the data for the line) is displayed, but it is also possible to scroll and display the past data that does not appear in the display.

As described above, in the present embodiment, in the regular inspection screen, the input column of the current inspection completed information for the operator to input whether or not the inspection work is completed at the present time,
Since past inspection history information can be checked at a glance along with a message prompting periodic inspections at the present time, inspection history management becomes simple and easy, and it is very useful as a reference material for machine maintenance. Further, since it is not necessary to create a separate inspection history management table on paper, the operator is not burdened. Furthermore, since the "grease refueling inspection table" is separately displayed, the grease refueling inspection, which is an important item in the regular inspection items, can be managed independently with good visibility.

The operator who recognizes that the periodical inspection is necessary by the automatic display of the periodical inspection screen as described above or the display of the message prompting the calling of the periodical inspection screen is interrupted by the operator or after a predetermined lot. After a number of continuous automatic operations have been completed, or at the time of turning on the power, a periodic inspection is performed, and then the inspection is completed interactively with the automatic inspection or the periodic inspection screen called by the operator's instruction. When the inspection completion signal indicating that is input by the key input device 4 (when the cursor is moved to “Done” in the input designation field in FIG. 2 and the confirmation key or the like is pushed), the inspection monitoring processing unit 13 determines that the date The cumulative number of shots is stored in the inspection history storage unit 16 as the latest periodic inspection history information. Further, when the shift to the automatic operation mode is prohibited, the inspection and 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 and monitoring processing unit 13 displays a message "The periodic inspection completion mark is set." On the regular inspection screen, and next to the current date and the number of shots (number of times of operation) (this regular inspection Next to the number of times),
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 regular inspection date or the calculated value of the cumulative number of shots to search for the regular inspection time as described above. Processing will continue.

On the other hand, in a state where the periodic inspection screen is automatically displayed or a message prompting the calling of the periodic inspection screen is displayed, the inspection work will be performed later due to a time limitation coming from the production schedule. Or it may be postponed to later). In this case,
Interactively with the periodic inspection screen that is automatically displayed or called,
The operator inputs an inspection pending signal indicating that the inspection is postponed by the key input device 4 (move the cursor to "Hold" in the input designation field of FIG. 2 and push a confirmation key or the like), and the inspection monitoring processing unit 13 Let them know that the inspection has been suspended. As a result, the inspection monitoring processing unit 13 sets "a temporary hold mark" on the regular inspection screen.
Is displayed, and "Hold" is displayed next to the number of times of periodical inspection that has arrived this time on the regular inspection screen. Further, when the shift to the automatic operation mode is prohibited, the inspection and 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 the present embodiment, even after the inspection pending signal is input, the regular inspection screen continues to be displayed unless the key input device 4 instructs to switch the display mode. In this embodiment, when switching to another display mode after inputting the inspection pending signal, the regular inspection screen is not called unless the operator instructs, but after inputting the inspection pending signal. Even when the display mode is switched to another display mode, the periodic inspection screen is called at a predetermined timing only for a predetermined number of seconds to call attention, or the above-mentioned message prompting the calling of the periodic inspection screen is displayed only for a predetermined number of seconds. It is also possible to display it to call attention. Further, in this embodiment, the power of the machine is shut off after notifying that the inspection is temporarily suspended, and the periodic inspection screen is not automatically displayed no matter which time period the power is turned on. After notifying the temporary suspension, turn off the power to the machine, and then
When the power of the machine is turned on between M8: 00 and PM5: 00, the periodic inspection screen is called preferentially, and the message indicating the arrival of the inspection day is output and the power is turned on. A display indicating that the inspection has not been completed may be displayed next to the date at the time of throwing in and the cumulative number of shots (the number of times of operation) (the temporary input entered last time may be canceled. ).

Further, in the present embodiment, the regular inspection screen can be called by a predetermined key operation by the key input device 4 at any time before the regular inspection screen is automatically displayed. This is to cope with the case where the operator is expected to automatically display the periodic inspection screen in the near future, and wants to complete the periodic inspection in advance before starting long-term automatic continuous operation from the production schedule. It is provided. When such a request is made, a predetermined periodic inspection work is performed at an arbitrary time before the regular inspection screen is automatically displayed, and then the operator calls the periodic inspection screen. Then, in this state, when the inspection completed signal is input by the key input device 4, the inspection monitoring processing unit 13 similarly sets the date and the total number of shots as the latest periodic inspection completed history 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 the next regular inspection date or the calculated value of the cumulative number of shots to determine the regular inspection time as described above. Continue the search processing of.

In this embodiment, if the confirmation key or the like is pushed after the cursor is moved to "Erase" in the input designation field of FIG. 2, the last line of the "regular inspection table" or "grease lubrication inspection table" will be displayed. The data in the inspection history storage unit 16 corresponding to the erased data is also erased.
If such an erasing mode is provided, when the inspection is carried out several days after the fact that the inspection is temporarily held is input, it is possible to erase the "Hold" and input "Done", and also to make an error in the checked signal. You can handle it even if you enter it.

FIG. 3 is a flow chart showing a simplified flow of processing by the inspection / monitor processing unit 13 when the machine is in operation. Note that the flow of FIG. 3 is simplified assuming that the control process is not used properly according to the above-mentioned time zone. In step ST1 of FIG. 3, it is asked whether or not the regular inspection time has come, and if YES, step S1.
If it is NO in step T2, the operation proceeds to step ST7 without displaying any information regarding the periodic inspection on the display screen. In step ST2, a message prompting the above-mentioned regular inspection screen is output, and the process proceeds to step ST3. In step ST3, it is asked whether or not the operator calls the regular inspection screen. If YES, the process proceeds to step ST4, and if NO, the process proceeds to step ST7. In step ST4, the above-mentioned regular inspection screen is displayed and the process proceeds to step ST5. In step ST5, it is asked whether or not the above-mentioned inspection suspension signal is input, and YES.
Then, in step ST8, after displaying the message "The temporary hold mark has been set.", Step S
At T10, the date and the total number of shots are stored in the inspection history storage unit 16
To step ST7, and if NO, 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 flow chart showing a simplified flow of processing by the inspection / monitor processing unit 13 when the machine is powered on. It should be noted that the flow of FIG. 4 is also simplified, assuming that the control process is not properly used according to the time zone. In step ST11 of FIG. 4, it is asked whether or not the regular inspection time has come, and if YES, step S11.
If NO in T12, the operation proceeds to step ST19 to perform a normal operation based on the operator's instruction. In step ST12, the regular inspection screen described above is output,
It proceeds to step ST13. In step ST13, it is asked whether or not the above-mentioned inspection suspension signal is input, and YES.
Then, in step ST14, the 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 checked signal is input. If YES, in step ST16, the message "The periodic inspection completion mark has been set." Is displayed. Number of shots and inspection history storage unit 1
6 and the process proceeds to step ST19. If NO, the machine is prohibited from shifting to the automatic operation mode in step ST18, and then the process returns to step ST13.

The effects of this embodiment described in detail above are as follows. Before the specified number of days has passed from the previous inspection date, the periodic inspection time is searched and determined not only by the number of days from the previous inspection date but also by the total number of shots from the previous inspection date. In addition, due to factors such as 24-hour operation and high cycle operation, even if the number of shots that is normally expected in the interval from the previous regular inspection day to the next regular inspection day is exceeded, the regular inspection time (regular inspection date) It can be determined that the arrival of the, and can determine the exact time. On the periodic inspection screen, the past inspection history information can be checked at a glance, along with an entry field for the currently inspected information for the operator to enter whether or not inspection work has been completed at this time, and a message prompting periodic inspection at the present time. Because you can
Inspection history management becomes easy and easy, and it will be very useful as a reference material for machine maintenance. Further, since it is not necessary to create a separate inspection history management table on paper, the operator is not burdened. Since the "grease refueling inspection table" is displayed separately, the grease refueling inspection, which is an important item in the regular inspection items, can be managed independently with good visibility. At any time before the periodic inspection screen is automatically displayed,
When you perform the prescribed periodic inspection work, call the periodic inspection screen and input the inspection completed signal, the date and the cumulative number of shots at that time are stored as the latest periodic inspection completed history information. Even if the periodic inspection is completed at an arbitrary time before being displayed, the timing of the next periodic inspection can be set accurately. Since the automatic display of the regular inspection screen is performed only during the normal working hours of the day, it is possible to eliminate the confusion caused by displaying the regular inspection screen at night. On the periodic inspection screen, in addition to "Complete", "Hold",
Since the "erase" mode is provided, various situations can be dealt with.

[0037]

As described above, according to the present invention, it is possible to accurately determine that the time when the periodic inspection is necessary is reached, and the automatic display or the calling of the periodic inspection screen is prompted when the periodic inspection time comes. On the periodic inspection screen called by the operator in response to the message, the past inspection history information can be visually checked together with the input field of the currently inspected information for the operator to input whether or not the inspection work has been completed at this time. Therefore, it is possible to make the display form convenient for management. In addition, even if the inspection is completed at any time before the time when the periodic inspection is required, the date and cumulative shot count value at this time can be set for the next periodic by inputting the inspection completed signal at this arbitrary time. It can be used as a standard for calculating the inspection date (time). Also, only during the hours that are preset as normal working hours within a day,
A periodic inspection screen and a message prompting you to call it can be output automatically. In general, it is possible to provide a molding machine having an extremely convenient regular inspection instruction function, and its value is enormous.

[Brief description of drawings]

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

FIG. 2 is an explanatory diagram showing an example of a regular inspection screen according to the first embodiment of the present invention.

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

FIG. 4 is an explanatory diagram showing a simplified process flow when the power is turned on by the inspection and monitoring processor of FIG. 1.

FIG. 5 is an explanatory diagram showing a grease refueling inspection table according to a conventional technique.

[Explanation of symbols]

 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 and monitoring processing unit 14 Shot number counting unit 15 Calendar / clock function unit 16 Inspection history storage Department

Claims (7)

[Claims] 1. A shot having a microcomputer that controls the entire molding machine, a display device that displays various mode screens by the output of the microcomputer, and an input device, wherein the microcomputer has a built-in shot. It recognizes that the cumulative number of shots from the previous inspection date has reached a predetermined number by the number of times (operating times) counting means, or the predetermined number of days from the previous inspection date is detected by the calendar / clock function means built in itself. When it is recognized that the regular inspection date has passed, the microcomputer is at least the history information of the regular regular inspection, and the present time for the operator to input whether or not the inspection work is completed at the present time. The periodic inspection screen that is displayed together with the inspection information of the above is displayed preferentially on the display device, or the periodic inspection screen is displayed. To display a message prompting the call to search screen, the molding machine having a regular inspection instruction function, characterized in that to prompt a periodic inspection to the operator. 2. The microcomputer according to claim 1, when the microcomputer recognizes that the regular inspection date has come, when the power is turned on, the regular inspection screen is preferentially displayed, and the operation operation is performed. A molding machine having a regular inspection instruction function, which displays a message prompting the calling of the regular inspection screen in the middle. 3. The history information of the past regular inspection displayed on the regular inspection screen according to claim 1, wherein:
A molding machine having a regular inspection instruction function, in which the date of each regular inspection date and the cumulative number of shots as of each regular inspection date are displayed in the form of a list. 4. The grease replenishment inspection table and the other regular inspection table are displayed together on the regular inspection screen in such a manner that the grease replenishment inspection table is independent of the other regular inspection table. A molding machine having a regular inspection instruction function, which is characterized in that 5. The method according to claim 1, wherein, when the periodic inspection screen is automatically displayed when the molding machine is powered on, the microcomputer prohibits the transition to the automatic operation operation and the inspection is completed. Is input by the operator, or the inspection pending signal indicating that the inspection is to be performed later, although the inspection is not completed yet, is input by the operator, whereby the microcomputer is put into the automatic operation mode. A molding machine having a regular inspection instruction function, which is characterized by allowing the transition of the above. 6. The automatic display of the regular inspection screen and the automatic display of a message prompting the calling of the regular inspection screen according to claim 1, wherein the regular working hours are set in advance within a day. A molding machine with a periodic inspection instruction function, which is characterized in that it is performed only in the belt. 7. The method according to claim 1, wherein the cumulative number of shots from the previous inspection date reaches a predetermined number of shots considered to be the time of the next regular inspection, and the predetermined number of days have passed from the previous inspection date. The regular inspection screen can be called by an operator's operation at any time before the next regular inspection date is reached, and the inspection is completed in the display state of the regular inspection screen called by the operator's operation. When the operator inputs a signal indicating that the inspection has been completed, the microcomputer recognizes this point in time as the latest inspected regular inspection day and uses it as a reference for calculating the next regular inspection day (time). A molding machine having a periodic inspection instruction function characterized by the above.