JPH07290544A - Displaying method for malfunction-occurring time for injection molding machine - Google Patents

Abstract

PURPOSE:To remove a malfunction cause by suitable dealing by displaying a malfunction content and a processing content in a window screen with a previously set color characters and corresponding to the malfunction content and a background when various operations of an injection molding machine coincide with malfunction content stored previously in a memory. CONSTITUTION:Colors of characters and a background according to malfunction contents are set for visual confirmations of various malfunction contents, a process content for recovering the malfunction contents and importances according to the malfunction contents. Flashing of part or all of the display and movement of a color part of the background are also provided, and stored in a memory 4 of a computer 3 for controlling the various operations of an injection molding machine 1. When a malfunction occurs, an operation of the machine 1 is stopped according to the case, and the content for recovering is displayed together with the malfunction content in a window screen of a display screen of a display unit 7 with colors of the characters and the background corresponding to the importance of the malfunction content on the screen of the unit 7. The cause can be removed by dealing as screen designated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display processing method when an abnormality occurs during the operation of an injection molding machine.

[0002]

2. Description of the Related Art Conventionally, an invention described in JP-A-63-194921 has been proposed as a display processing method when an abnormality occurs in an injection molding machine. That is, FIG. 4 is a block diagram of a main part of a control unit of a conventional injection molding machine, and 101 is a numerical control device (hereinafter, referred to as NC) for controlling the injection molding machine.
Then, it has a microprocessor (hereinafter referred to as CPU) 111 for NC and a CPU 112 for a programmable machine controller (hereinafter referred to as PMC). The NC CPU 111 has a ROM 114 in which a management program for controlling the entire injection molding machine is written, a RAM 115 for temporarily storing data, and various servo motors for clamping, ejector, injection, and screw rotation (see FIG. Servo circuit 123-1 to drive and control (not shown)
123-n are connected via the servo interface 118. The PMC CPU 112 is connected with a later-described sequence program for displaying an alarm, a sequence program for each operation of the injection molding machine, a ROM 116 for storing an alarm message and a display color, which will be described later, and a RAM 117 for temporarily storing data. . Reference numeral 119 denotes a non-volatile shared RAM having a backup power source for storing an NC program for controlling an abnormal part described later and various operations of the injection molding machine, various set values, parameters and the like. . Reference numeral 113 denotes a bus arbiter controller (hereinafter referred to as BAC), which is the BAC.
Reference numeral 113 denotes an NC CPU 111 and a PMC CPU 11
2, shared RAM 119, input circuit 120, output circuit 12
Each bus of No. 1 is connected, and the bus used by the same BAC 113 is controlled. Also the same BAC11
3 is a data input device with a color display device (hereinafter, referred to as CRT / M via the operator panel controller 122).
The DI 102 is serially connected.

FIG. 5 shows a shared RAM 1 for displaying an alarm.
19 shows an example of the contents of information stored in the ROM 116 for PMC 19 and PMC. The shared RAM 119 has a storage area for storing an abnormality when an abnormality is detected during operation of the injection molding machine, depending on the abnormal portion. For example, as shown in FIG. 5, when an abnormality occurs corresponding to each abnormality content, the stored alarm bit numbers A1 to
A storage area for An is prepared, and when an abnormality corresponding to each alarm bit number A1 to An occurs, the bit is rewritten to 1 and 0 is retained if no abnormality occurs. Further, the ROM 116 has color designation addresses C1 to Cn and message addresses M1 to Mn respectively corresponding to the alarm bit numbers, and each address stores a color for displaying a message and a corresponding abnormal message. For hardware abnormality such as abnormality in control device or abnormality in servo system, for example, red, injection molding operation such as when die protection is activated during mold closing operation When an abnormality occurs, the color of the displayed message is yellow, and when an abnormality is artificial, such as when the injection molding cycle is interrupted by the operator opening the mold closing door, the color of the displayed message depends on the type of abnormality, such as green. Is determined and is stored in the ROM 116.

When an abnormality occurs there and the operation of the injection molding machine is stopped, the CRT / MDI 102 is set to the alarm mode (Note that when the abnormality occurs, the CRT / MDI 1 automatically operates.
02 may be set to the alarm mode), PM
As shown in the operation processing flowchart of FIG. 6, the C CPU 112 first sets the index i to “1” (step S
1), shared RAM corresponding to the set index i (-1)
The stored content of the alarm bit number Ai (-A1) in 119 is read, and it is determined whether the read content is "1" (step S2). If not "1", step S5
If it is "1", the alarm bit number Ai
Since it means that an abnormality corresponding to (A1) has occurred, the stored contents of the color designation address Ci (-C1) of the ROM 116, that is, the color is read, and the color displayed on the CRT screen is converted to the same color (step S3), read the stored message content of message address Mi (-M1), and CR
The message read in the converted color is displayed on the T screen (step S4). That is, when the stored content of the alarm bit number Ai is "1", in the example shown in FIG. 5, a red message "Abnormality has occurred in the control device" is displayed on the CRT screen. Then, the index i is incremented (step S5), and the index i exceeds the number of alarm bit numbers, that is, the number n of stored alarms (step S5).
The processes of steps S2 to S6 are repeated up to 6) to detect an abnormal point, and an abnormal message is displayed on the CRT screen in a designated color according to the detected abnormal point. When the index i exceeds n, it is determined whether or not another screen, that is, a screen other than the alarm mode screen is selected (step S7). If not selected, the process returns to step S1 again and the index i is set. Set to "1" and repeat the same operation again. When another screen is selected, this alarm display process ends. As described above, according to this prior art, when an abnormality occurs in the injection molding machine, the color of the message to be displayed is changed according to the abnormality location and the cause of the abnormality to display the message of the abnormality location and the cause of the abnormality. Therefore, the degree of importance of the abnormality can be judged for the operator by the color of the message, which is convenient, and the difficulty level and time of the abnormality recovery work can be estimated.

[0005]

However, in the case of this conventional technique, the color of the alarm message on the CRT screen is changed according to the "cause of abnormality" and the "abnormality" is detected while the operator grasps the importance of the abnormality. Since the "Cause" is displayed, the operator can know the cause of the abnormality and its importance at the same time. However, regarding the processing contents of the abnormality necessary for the error recovery work, a separate instruction manual is provided separately from the CRT screen. You must read or rely on your experience to eliminate the cause of the anomaly. Therefore, in reality, it takes a long time to remove the cause of abnormality by a simple process, and there is a drawback that the productivity of the entire molding operation is reduced. Furthermore, even if a message or the like indicating an abnormality is displayed in a different color, there is a drawback that it is difficult to call the attention of a worker who is far away. Therefore, the present invention, when an abnormality occurs, when the abnormality occurs in the injection molding machine that can appropriately eliminate the cause of the abnormality by appropriately dealing with it without substantially lowering the productivity of the entire molding operation. It is intended to provide a display processing method.

[0006]

For this reason, the present invention is directed to an injection molding machine for forming a resin product by filling a molten resin into a cavity formed in a mold closed state. The contents of the abnormality when the output from various sensors that detect the error differ from the output corresponding to the preset program, the processing contents for recovery that differ for each abnormality content, and the importance of each abnormality content visually The characters of the display and the color of the background, which are set according to various abnormalities for confirmation, are stored in a storage device of a computer that controls various operations of the injection molding machine, and various operations of the injection molding machine are stored in the storage device. When it matches with the previously stored error content, the error content and processing content are displayed on the display screen in the window screen with the color characters and the ground that are preset corresponding to the error content. Located display processing method when an error occurs in the molding machine, it is an unit for which a problem solution. Further, the present invention is capable of blinking one or both of the character and the ground of the display corresponding to the degree of importance of each abnormality content, and the color portion of the ground of the display corresponding to the degree of importance of each abnormality content to one of the screens. When the start condition of each operation is not satisfied due to improper operation, the start condition table is displayed and only the condition that is not satisfied is changed in character or ground color and displayed on the window screen. It is displayed on the screen and is used as a means for solving the problem.

[0007]

According to the display processing method when an abnormality occurs in the injection molding machine according to the present invention having the above-described structure, the operator preliminarily inputs various abnormality contents through the keyboard, different recovery processing contents for each abnormality content, and various kinds of recovery contents. To visually confirm the importance of each abnormality content, the characters and background color of the display set for each abnormality content, the blinking of part or all of the display, the movement of the color portion of the ground, etc. can be respectively controlled by the input interface. It is stored in a storage device of a computer that controls various operations of the injection molding machine. In this way, the operation of the injection molding machine is started in a state where various information corresponding to the abnormality is stored in the storage device of the computer. If an abnormality occurs during this operation, the operation of the injection molding machine may be stopped in some cases, and the CRT screen, which is a display device, indicates the content of the abnormality and the processing content for restoration as the importance of the abnormality content. It is displayed on the wind screen with the corresponding characters and background color.

That is, in the case of an urgent cause of an abnormality such as a stroke sensor abnormality or a low oil level, for example, red characters are white characters and the back of the processing content portion is blinking, or a partial red background is displayed on the screen. Move from one to the other,
Immediately let the operator know visually that not only the buzzer but also the fact that it must be processed. In addition, maintenance information such as filter replacement and grease refueling, which are relatively low in urgency, may interfere with work such as when the cycle of the work process ends at the end of the work process without blinking and moving the color back part in black letters on a yellow background. Visually inform you that you will be processing where you do not. Furthermore, if the operator does not start the injection molding machine due to a simple mistake such as incomplete door closing, the start condition table is displayed and the failure condition (“incomplete door closing”) is colored. It can be changed and displayed to notify the operator visually and can be used as a guide for operation.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments of the drawings. FIGS. 1 and 2 show the embodiments of the present invention. When an abnormality occurs in each operation state of the injection molding machine 1 for forming a resin product by filling the molten resin into the cavity formed in the mold closed state in the figure, the abnormality detection unit 2 detects the abnormality through various sensors. And input to the computer 3 for controlling the injection molding machine 1. The storage device 4 of the computer 3 stores various abnormal contents and different recovery processing contents depending on the abnormal contents.
In order to visually check the degree of importance for each type of abnormality, the characters and background color of the display set for each type of abnormality, part or all of the display blinking, and data for moving the color portion of the background are stored. The above information is appropriately displayed on the screen of the display device 7 on the window screen when an abnormality occurs.

Next, the operation of the embodiment of the invention constructed as described above will be described. In the case of the display processing method when an abnormality occurs in the injection molding machine configured as described above, various abnormality contents, processing contents for recovery different for each abnormality content, and importance for each abnormality content are visually confirmed in advance. Therefore, the computer 3 that controls various operations of the injection molding machine 1 is configured to control the various characters of the display and the color of the background, the blinking of part or all of the display, the movement of the color portion of the background, etc. It is stored in the storage device 4. When an abnormality occurs during the operation of the injection molding machine 1, the operation of the injection molding machine 1 is stopped in some cases, and the content of the error is displayed on the screen of the display device 7 along with the content of the error. The character and the background color corresponding to the degree are displayed, for example, as shown in FIG.
The window screen 8 is displayed in the display screen of. That is,
In the case of an abnormal cause such as a stroke sensor abnormality with a high degree of urgency or a low oil level, for example, white characters are displayed on a red background and the white background of the processing content portion is blinked, or a partial red background is displayed from one side of the window screen 8 to the other. Not only the buzzer for the operator that it must be moved and processed immediately,
Visually inform. Alternatively, the entire periphery of the wind screen 8 or a certain area outside the wind screen is changed to a red background, and a blinking or partial red band is moved from one side of the screen to the other to visually notify.

Also, the filter replacement, which is relatively urgent,
For maintenance information such as grease refueling, for example, in black letters on a yellow background, blinking, do not move the color back part, and visually inform that processing will be done at the end of the work process cycle, etc. where there is no hindrance to work . Further, when the operator does not start the operation of the injection molding machine due to a simple mistake of the operator, for example, incomplete closing of the door, a window screen 8a is displayed in the current display screen of the display device 7, as shown in FIG. To be done. A mold closing start condition table is displayed on the window screen 8a, for example, when mold closing is not started. If the front safety door is not completely closed, "Front safety door closed" is displayed in yellow and the other conditions that are satisfied are displayed in white. In this way, by displaying only the failure condition in different colors, the operator is visually notified of the failure condition,
It is possible to guide the operation to completely close the front safety door.

[0012]

As described in detail above, according to the present invention, the characters of the display and the color of the background are appropriately changed according to the degree of importance of the abnormality so that the operator can quickly and surely find the trouble state. In addition to being able to find out, the degree of trouble can be properly grasped by the color change. Moreover, since the processing content corresponding to the trouble is displayed on the display screen of the display device as a window screen, even an inexperienced operator can easily recover the trouble without looking at the instruction manual. . Further, by changing a color other than the window screen to a conspicuous color, and in some cases, blinking and running a vertical or horizontal band portion, the operator's attention can be further called and an emergency response can be made possible.

[Brief description of drawings]

FIG. 1 is a block diagram for controlling an injection molding machine according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a display according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a display according to an embodiment of the present invention.

FIG. 4 is a block diagram of a main part of a conventional injection molding machine.

FIG. 5 is an explanatory diagram showing an example of contents stored in a storage unit for displaying an alarm in a conventional injection molding machine.

FIG. 6 is a flowchart of an alarm display process in a conventional injection molding machine.

[Explanation of symbols]

 1 Injection Molding Machine 2 Abnormality Detection Section 3 Computer 4 Storage Device 5 Keyboard 6 Input Interface 7 Display Device

Claims (4)

[Claims] 1. An injection molding machine for filling a cavity formed in a mold closed state with a molten resin to form a resin product, wherein outputs from various sensors for detecting respective operating states of the injection molding machine are Abnormal content when output differs from preset program etc., different recovery processing for each abnormal content, and display of each abnormal content set to visually confirm the importance of each abnormal content Each of the character and the background color is stored in the storage device of the computer that controls various operations of the injection molding machine,
When various operations of the injection molding machine match the abnormality content stored in advance in the storage device, the abnormality content and the processing content are displayed on the window screen with the color characters and ground preset corresponding to the abnormality content. A display processing method when an abnormality occurs in an injection molding machine, characterized by displaying on a screen. 2. The display processing method when an abnormality occurs in an injection molding machine according to claim 1, characterized in that one or both of a character and a background of the display corresponding to various kinds of abnormality content importance are blinked. 3. The display processing when an abnormality occurs in the injection molding machine according to claim 1, wherein the color portion of the background of the display corresponding to the degree of importance according to each abnormality content is moved from one side of the screen to the other side. Method. 4. When the operation is improper and the start condition of each operation is not satisfied, a start condition table is displayed, and only the condition that is not satisfied is changed in the character or ground color and displayed on the display screen in the window screen. The processing method when an abnormality occurs in the injection molding machine according to claim 1.