JP2003019737A - Operation state display method for injection molding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation state display method capable of plainly displaying an operation state at every injection molding machine in a real time even in a system for collectively controlling a plurality of injection molding machines. SOLUTION: The operation states of injection molding machines are displayed on the display device provided to the control unit in a more-than-one-injection molding machine control system for controlling a plurality of the injection molding machines. The display device can display an operation screen for collectively displaying the operation states of a plurality of the injection molding machines with respect to a plurality of numbered machines by a screen dividing system. The display device can also display a general graph screen for showing the operation state only of the numbered machines concerned in detail by clicking the specific place in the divided screen of each numbered machine in the operation state screen. The operation state is displayed on the general graph screen as at least three-kinds of graphs wherein the time from the past predetermined time is set to a common time axis. The first graph distinguishes the operation state of the injection molding machine to display the same and the second graph distinguishes the presence of the alteration of a molded article and the third graph distinguishes the presence of the alteration of a molding condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation status display method for displaying an operation status of an injection molding machine on a display device in an easy-to-understand manner, and more particularly, in a multiple machine management system for collectively managing a plurality of injection molding machines. The present invention relates to an operation status display method suitable for display.

[0002]

2. Description of the Related Art As a multiple-unit management system for managing a plurality of injection molding machines installed at the same location, for example, a group management system for managing the productivity is provided. In this type of multiple-unit management system, for example, a personal computer with a display device is provided as a management device connected to a plurality of injection molding machines. The management device is
Receives various information from various sensors installed in the injection molding machine, processes the received information based on the built-in management program, saves the processed result in the built-in memory, and displays it on the display device as a management screen. . Of course,
Depending on the type of information, the received raw information may be stored in the memory as it is.

[0003]

By the way, since the injection molding machine is a facility for producing molded products, it is a very important issue for the production site to manage the operating condition and improve the operating rate. However, in the case of collectively managing a plurality of injection molding machines, it is difficult for the operator to easily understand the current operating status of each injection molding machine.

In order to solve such a problem, the present invention is to provide an operation status display method capable of displaying the operation status of an injection molding machine in real time in an easy-to-understand manner.

Another object of the present invention is to provide an operating status display method capable of easily displaying in real time the operating status of each injection molding machine even in a system in which a plurality of injection molding machines are collectively managed. To do.

[0006]

The operation status display method according to the present invention is carried out as follows when a single injection molding machine is used.

That is, in the display method of displaying the operating condition of the injection molding machine on the screen of the display device connected to the control device, the operating condition is at least the time from the past predetermined time before as a common time axis. Three types of graphs are shown. The first graph distinguishes the operating state of the injection molding machine, the second graph distinguishes whether the molded product has been changed, and the third graph changes the molding condition. Are displayed separately.

In particular, each of the first to third graphs is a bar graph, and in the first graph, the operating state is color-coded and displayed according to the elapsed time from the predetermined time before to the present time, and the second graph is displayed. The graph is color-coded so as to change the color when the molded product is changed corresponding to the time elapsed from the predetermined time before to the present time, and the third graph is the time elapsed from the predetermined time before to the current time. It is possible to display in different colors so that the color changes when the molding conditions are changed.

The operation state according to the first graph is defined by at least four types of operation of the injection molding machine, normal stop, stop due to abnormality, and power off.

Further, the display device shows a change in the cumulative value of the number of shots for the predetermined time in a line graph with the common time axis as the horizontal axis and shows the change status of the quality data for the predetermined time in the common. A general graph screen with the time axis as the horizontal axis may be displayed, and the first to third bar graphs indicating the operating status may be displayed in the general graph screen together with the numerical value indicating the predetermined time.

When the present invention is applied to a multi-unit management system for collectively managing a plurality of injection molding machines, it is carried out as follows.

That is, in the display method for displaying the operating status of each injection molding machine on the screen of the display device provided in the management device in the multiple-unit management system for managing a plurality of injection molding machines, the display device is It is possible to display an operation status screen for collectively displaying the operation status of a plurality of injection molding machines for the plurality of machines in a screen division format, and the display device also displays the operation status of each machine in the operation status screen. It is possible to display a general graph screen showing the operating status of only the relevant machine in detail by clicking a specific location on the split screen, and in the general graph screen, the operating status indicates the time from a predetermined time in the past. It is represented by at least three types of graphs that have a common time axis. The first graph distinguishes the operating state of the injection molding machine and the second graph. Off displays distinguish Changes in the molded article, the third graph distinguishing Show Changes in molding conditions.

Also in this case, the first to third graphs are bar graphs, respectively, and in the first graph, the operating states are color-coded and displayed in correspondence with the elapsed time from the predetermined time before to the present time, The second graph is color-coded and divided so that the color changes when the molded product is changed in correspondence with the passage of time from the predetermined time before to the present time, and the third graph is displayed from the time before the predetermined time to the present time. In accordance with the passage of time, the color-coded classification is displayed so that the color changes when the molding conditions are changed.

The operating state according to the first graph is defined by at least four types of operation of the injection molding machine, normal stop, stop due to abnormality, and power off.

Further, on the summary graph screen, a change in the cumulative value of the number of shots for the predetermined time is displayed in a line graph with the common time axis as the horizontal axis, and the quality data for the predetermined time is changed. The situation may be displayed with the common time axis as the horizontal axis.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION A case in which an embodiment of the present invention is applied to a system for managing a plurality of injection molding machines as shown in FIG. 1 will be described. In FIG. 1, a plurality of injection molding machines 10-1 to 10-n are installed in the same place, and these are collectively managed by a management device 20 with a display device. That is, the management device 20 controls the injection molding machines 10-1 to 10-1.
10-n, each of which is connected to each control device, receives various information from various sensors installed in each of the injection molding machines 10-1 to 10-n via each control device, and receives the received information. Processing is performed for each injection molding machine based on a built-in management program, and the processed results are stored in a built-in memory and displayed on a display device as a management screen. Depending on the type of information, the received raw information is stored in the memory as it is.

Next, four examples out of a plurality of types of management screens displayed on the display device to show the operating status of each injection molding machine in the management device 20 will be described.

FIG. 2 is an operation status screen for displaying the operation status of a plurality of injection molding machines in real time. On this operation status screen, the operation status of a plurality of injection molding machines is divided into screens and the operation status of the plurality of machines (1 to 30 in this case) is displayed.
No.) is displayed in real time all together on one screen. For example, referring to FIG. 3 which is an enlarged view of the No. 9 machine, the number of the No. machine is shown at the upper left, the count value C1 (17 here) of the molding condition change counter is shown at the upper right, and the 24-hour operating status graph is shown on the right side. , The number of shots on the lower side (52
9) and the cycle time (14.9 sec) are displayed. Here, the molding condition change counter is a counter that counts how many times the molding conditions have been changed from the start of molding to the present. This counter is provided in the management device. The control device in each injection molding machine is provided with means for detecting changes in molding conditions, and the management device counts each in response to the detection result from each control device.
Display the counting result on the display device for each machine. In the management device, this display value can be reset as needed.

Further, the 24-hour operating status graph is one in which the operating status of the injection molding machine from the present time to the past 24 hours is color-coded and displayed by one first bar graph B1. The operating status is defined by four types: operating, normal stop (during standby), stop due to an abnormality, and power off. The four types of status are displayed in different colors according to the elapsed time from 24 hours ago to the present time. To be done. Here, the operation is shown in blue, the normal stop is shown in yellow, the stop due to an abnormality is shown in red, and the power is turned off in gray.
Blue indicates hatching with a thin line descending to the right, yellow indicates a vertical hatch, hatching indicates a thick line descending to the right, gray indicates hatching using a thick line descending to the left.
Further, the lowermost end of the first bar graph B1 indicates 24 hours ago, and the uppermost end indicates the current time. For example, from the past 24 hours to 12 hours ago, the normal stop, from the past 12 hours to the present time, it is in operation. If so, the lower half of the first bar graph B1 is displayed in yellow and the upper half is displayed in blue.

Further, in this embodiment, the appearance of the injection molding machine is schematically displayed in the split screen of each machine, and the background thereof indicates the current operation status. The four types of stop due to an abnormality and the power-off are displayed in the same corresponding color relationship as the color classification in the first bar graph B1. That is, assuming the same as the above example, the background color is blue.

By looking at such an operation status screen, the operator or the administrator can know at a glance which machine was in what operating status in the past 24 hours. The value of 24 hours is usually a fixed value, but may be variable.

By the way, in the management device 20, by clicking a specific portion (icon on the screen) of the divided screen of each machine in the above-mentioned operation status screen on the display device, a general view showing in detail the operation status of only that machine. The graph screen can be displayed.

FIG. 4 is an example of a general graph screen. In this general graph screen, the cumulative value of the number of shots, the change status of quality data for 24 hours, and the presence / absence of abnormalities are classified by machine number (here, machine number 10). The presence / absence of a setting change is displayed on one screen with the time as the horizontal axis. In FIG. 4, the uppermost graph is a line graph showing the change in the cumulative value of the number of shots, and a plurality of vertically arranged lines, for example, the line L1 has a molding interruption (abnormal occurrence) around 18:00. Indicates that.

Similar to the color-coded display of the operating status described above, the L2 "state" bar graph indicates 4 of operating, normal stop (standby), stop due to abnormality, and power off.
Although defined by the type, the operating state for 24 hours is displayed in different colors according to the time with the horizontal axis as the time axis. That is, according to this bar graph, it is possible to know when there is a change in the operating state of the injection molding machine.

The bar graph "condition name" of L3 is a graph showing the time when the color is changed when the molding condition is changed, that is, the condition name of each molded product is changed. In other words, this is changed when the molded product changes and is displayed in different colors, but the color itself does not have meaning, and the time when the color changes has meaning. In other words, it is possible to know when the molded product has been changed.

On the other hand, the bar graph of "item" of L4 is
It is a graph which changes with a color and displays with time when the condition item in a molding condition is changed. For example,
The color is changed when the injection condition or the mold opening condition is changed. This is not the color itself, but the time when the color changed is significant, and when the molding condition was changed. You can know what. Therefore, "condition name",
The "item" color is different from the "state", and four or more colors are prepared.

The above-mentioned "state", "condition name", and "item" are the first, second, and
This corresponds to the third graph.

Next, the graph of the first stage of L5 is the "filling time" of the display item shown in the display item selection column on the lower side of FIG.
2 shows the passage of time, and the second stage similarly shows the passage of time of the "minimum cushion position". The graph in the third row shows the "holding pressure completion position", and the fourth and fifth steps show the elapsed time of the "VP switching position" and the "pre-filling position", respectively. When the display item in the display item selection column is changed, the quality data displayed in L5 is also changed.

As is apparent from FIG. 4, the above-mentioned line graph, bar graphs L2 to L4, in the general graph screen,
The graph L5 has a common time axis as the horizontal axis.

In the present embodiment, the operating status of the relevant machine in the past 24 hours is further displayed on the right side of the summary graph screen.
With the second bar graph B2 at an operating rate of ~ 100%, 24
It is displayed together with a numerical value indicating time. In FIG. 4, it is shown that the operating rate for the past 24 hours is 95%,
"Time display" shown in the display item selection column at the bottom of Fig. 4
The number 24, which is the base of the operation rate calculation, is displayed in the section. The numbers in the "time display" column can be changed arbitrarily. That is, the "date and time" and "time display" shown in the display item selection field can be set arbitrarily, and here, September 4, 2000 1
By setting the numerical value from 0:00 to 24 hours, as shown in the uppermost part of FIG. 4, 24 hours from September 4, 2000 10:00 to September 5, 2000 10:00 Is displayed. If the number 12 is entered in the "time display", the operating rate for the past 12 hours based on 12 hours is displayed on the second bar graph B2. In this case, the graphs or items in the first to eighth rows in FIG. 4 are also shown for the past 12 hours. According to such a second bar graph B2, it is possible to display the operation rate from an arbitrary time and an arbitrary time.

FIG. 5 is an example of the setting history screen. In this setting history screen, the history of setting changes is changed by item number (here, number 10), changed items, set values before and after change, and change. It is displayed on one screen together with the date and time.

FIG. 6 is an example of the abnormality history screen. In this abnormality history screen, the history of abnormality occurrence is classified into 1 for each machine (here, machine No. 10) along with the abnormality item, the occurrence date and time, and the cancellation date and time.
Displayed on the screen.

As described above, the summary graph screen of FIG. 4 is linked to the operation status screen of FIG. 2, and can be displayed by clicking a specific portion of each unit on the operation status screen of FIG. It has become. The setting history screen of FIG. 5 and the abnormality history screen of FIG. 6 are linked to the summary graph screen of FIG. 4, respectively, and displayed by clicking a specific part (icon on the screen) of the summary graph screen of FIG. It is supposed to be done.

Although the above description is applied to a multiple-unit management system, the present invention is not limited to the multiple-unit management system and can be applied to the case of only one injection molding machine. There is also no. That is, the injection molding machine always includes a control device, and a display device for monitoring is connected to the control device. Then, it is possible to display the summary graph screen as shown in FIG. 4, the setting history screen of FIG. 5, and the abnormality history screen of FIG. 6 on this display device. However, since there is no operation status screen as shown in FIG. 2, the first bar graph as shown in FIG. 3 may be displayed instead of the second bar graph on the general graph screen in FIG. Further, in the case of only one injection molding machine, since the control device and the display device are in the immediate vicinity of the main body of the injection molding machine, a screen that schematically shows the appearance of the injection molding machine as shown in FIG. Is unnecessary. In other words, it is not necessary to display the operating status only at the present time.

[0035]

As described above, according to the operation status display method of the present invention, the operation status of the injection molding machine can be easily checked at any time, and the information matched to the production operation base time can be easily known. Therefore, such an operation status display method is most suitable for a multi-unit management system that collectively manages a plurality of injection molding machines.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing a configuration of a multiple-unit management system for an injection molding machine to which the present invention is applied.

FIG. 2 is a diagram showing an example of a driving status screen as an example of a management screen displayed on the display device of the management device shown in FIG.

FIG. 3 is an enlarged view of one of the split screens shown in FIG.

4 is a diagram showing an example of a general graph screen as another example of the management screen displayed on the display device of the management device shown in FIG. 1. FIG.

5 is a diagram showing an example of a setting history screen as another example of the management screen displayed on the display device of the management device shown in FIG.

6 is a diagram showing an example of an abnormality history screen as another example of the management screen displayed on the display device of the management device shown in FIG.

[Explanation of symbols]

10-1 to 10-n injection molding machine 20 Management device B1 First bar graph B2 Second bar graph

Claims (8)

[Claims] 1. A display method for displaying an operating status of an injection molding machine on a screen of a display device connected to a control device thereof, wherein the operating status is at least a time from a predetermined time in the past as a common time axis. It is represented by three types of graphs, the first graph distinguishes the operating state of the injection molding machine, the second graph distinguishes whether or not the molded product is changed, and the third graph A method for displaying the operating status of an injection molding machine, characterized by displaying whether or not the molding conditions have been changed. 2. The operating status display method according to claim 1, wherein each of the first to third graphs is a bar graph, and the first graph corresponds to a time elapsed from the predetermined time before to the current time. The operating state is color-coded and displayed, and the second graph is color-coded and displayed so that the color changes when a molded product is changed in response to the time elapsed from the predetermined time before to the present time. The method for displaying the operating status of an injection molding machine, wherein the graph is color-coded and displayed so that the color changes when the molding conditions are changed in correspondence with the passage of time from the predetermined time before to the present time. 3. The operating status display method according to claim 2, wherein the operating status according to the first graph is defined by at least four types of operation of the injection molding machine, normal stop, stop due to an abnormality, and power off. A method for displaying the operating status of an injection molding machine, which is characterized in that 4. The operating status display method according to claim 2, wherein the display device shows a change in the cumulative value of the number of shots for the predetermined time in a line graph with the common time axis as the horizontal axis and the predetermined value. It is possible to display a summary graph screen showing the change status of quality data for time with the common time axis as the horizontal axis, and the first to third bar graphs showing the operation status together with the numerical value indicating the predetermined time are summarized. A method for displaying the operating status of an injection molding machine, which is displayed in a graph screen. 5. A display method for displaying an operating status of each injection molding machine on a screen of a display device provided in a management device in a multi-unit management system for managing a plurality of injection molding machines, wherein the display device comprises: The operation status of a plurality of injection molding machines, it is possible to display an operation status screen that collectively displays the plurality of machines in a screen division format, the display device also, for each machine in the operation status screen It is possible to display a general graph screen showing the operating status of only the relevant machine in detail by clicking a specific location in the split screen, and in the general graph screen, the operating status is from the past predetermined time ago. It is represented by at least three types of graphs with time as a common time axis, and the first graph distinguishes the operating status of the injection molding machine. The operation status of the injection molding machine is characterized in that the second graph shows the presence / absence of changes in the molded product and the third graph shows the presence / absence of changes in the molding conditions. Display method. 6. The operating status display method according to claim 5, wherein each of the first to third graphs is a bar graph, and the first graph corresponds to a time lapse from the predetermined time before to the current time. The operating state is color-coded and displayed, and the second graph is color-coded and displayed so that the color changes when a molded product is changed in response to the time elapsed from the predetermined time before to the present time. The method for displaying the operating status of an injection molding machine, wherein the graph is color-coded and displayed so that the color changes when the molding conditions are changed in correspondence with the passage of time from the predetermined time before to the present time. 7. The operating status display method according to claim 6, wherein the operating status according to the first graph is defined by at least four types of operation of the injection molding machine, normal stop, stop due to abnormality, and power off. A method for displaying the operating status of an injection molding machine, which is characterized in that 8. The operating status display method according to claim 6, wherein the change in the cumulative value of the number of shots for the predetermined time is further displayed in a line graph on the general graph screen with the common time axis as the horizontal axis. In addition, the operating condition display method of the injection molding machine is characterized in that the changing status of the quality data for the predetermined time is displayed with the common time axis as the horizontal axis.