JPH074901Y2 - Data display device in injection molding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a data display device in an injection molding machine used for displaying various data.

"Conventional Technology" The function of injection molding machines is improving year by year.

Therefore, items to be set as molding conditions are increased, and operation procedures and maintenance inspection procedures are complicated. For this reason,
In order to operate the injection molding machine, we prepare a collection of technical data written on paper to set injection conditions and refer to the operating procedure, and refer to this as necessary to perform the work. Here, the technical data collection includes physical property data of the injection material, an operation manual describing the operation of the injection molding machine, a maintenance inspection manual describing the maintenance inspection items and order of the injection molding machine, and the like.

"Problems to be solved by the device" However, in the past, since the injection conditions were set by appropriately looking at the technical data book written on paper, it was necessary to have experience and intuition in setting the conditions, It may not be possible to set the conditions accurately.

Also, operating the injection molding machine while looking at the technical data collection complicates the work, and may result in an erroneous operation.

Further, since the maintenance and inspection work is performed while looking at the technical data collection, the work becomes complicated and it is not possible to perform the quick maintenance and inspection.

The present invention has been made in view of the above circumstances, and it is possible to accurately set injection conditions, to accurately operate an injection molding machine, and to quickly perform maintenance and inspection work. An object is to provide a data display device in a molding machine.

"Means for Solving the Problem" A data display device in an injection molding machine of the present invention comprises a display means for displaying a data group, a main storage means for storing a data group such as a set value and a current value of injection conditions, The sub-storage means in which a data group used for determining the set value or used as a reference for an operating procedure is stored, and the data group in the main storage means and the data group in the sub-storage means are selectively called out, and the display means is provided. And a control means for displaying on the display.

[Operation] According to the present invention, a data group used to determine a set value or used as a reference for an operating procedure is stored in the sub-storage means, and the data group in the sub-storage means is selected by the control means. Is displayed on the display means. The operator sets injection conditions, controls the injection molding machine, and performs maintenance and inspection while looking at this data group. Therefore, when the data group of the injection condition setting manual in the auxiliary storage means is stored, it is not necessary to refer to the injection condition setting manual (bundle of documents) as in the conventional case, and the auxiliary storage means is stored in the auxiliary storage means. When the data group of the maintenance and inspection manual is stored, it is not necessary to refer to the maintenance and inspection manual (bundle of documents) as in the conventional case, and compared to when operating while looking at these documents. The injection conditions can be set accurately regardless of intuition and experience, and accurate operation can be performed, and maintenance and inspection work can be performed quickly.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is a control device of an injection molding machine. A CPU 2 is provided in the control device 1, and the CPU 2 has a system program 3, a storage device 4, a RAM 5, and a clock 6 via a bus line. Are connected respectively.

A thermocouple interface (referred to as a thermocouple I / F in the figure) 8 to which a thermocouple 7 for detecting the temperature of a heating cylinder, a mold, etc. provided outside the control device 1 is connected to the CPU 2. Similarly, a solid-state relay (hereinafter referred to as SSR) for controlling a heater that heats the heating cylinder and die provided outside.
SSR interface (called S in the figure)
Enter SRI / F. ) 10 and an encoder interface (referred to as encoder I / F in the figure) 12 connected to a pulse encoder 11 that is provided outside and detects the moving position of the screw inside the heating cylinder and the moving position of the operation board. ,
An analog-digital converter (referred to as A / D in the figure) that is connected to a pressure sensor that detects the pressure inside the heating cylinder or the pressure in the injection cylinder and the potentiometer that detects the moving position of the ejector, which are provided externally. And a digital-analog converter (denoted as D / A in the drawing) 16 connected to a flow rate control valve and a pressure control valve 15 of a hydraulic circuit that drives a mold clamping device and an injection device provided outside. , A digital input section (indicated as DI in the figure) 18 connected to a limit switch provided outside, for confirming the closing of safety doors, and a proximity switch 17 for confirming the forward and backward limits of the nozzle, and electromagnetic switching Electromagnetic output sections (denoted as DO in the figure) 20 respectively connected to the valve, the indicator lamp and the buzzer 19 are connected to each other via bus lines.

Further, the CPU 2 has a keyboard interface (referred to as KEY I / F in the drawing) 22 connected to a keyboard 21 provided externally, and a printer interface (printer I / F shown in the figure) connected to a printer 23 provided externally. Described as F. 24 and an IC card interface connected to an external IC card 25 (indicated as IC card I / F in the figure) 2
6 and an RS232C interface (referred to as RS232CII / F in the figure) 28 connected to the host computer 27 are connected to each other via bus lines.

As shown in FIG. 2, the keyboard 21 has a numeric keypad section.
21a, a code input section 21b, a control signal input section 21c, and a screen call key section 21d. Lenkey part 21a
The sign input section 21b is for inputting a numerical value such as the temperature of the heating cylinder and the type, and the control signal input section 21c is used when performing a special process such as starting the printer. It is something. The screen call key 21d is used to directly call a screen desired by the operator as described later.

Further, as shown in FIG. 1, the CPU 2 has a canvas RO
M29 is connected via a bus line. Here, the canvas ROM 29 stores a plurality of character data displayed on the CRT 34 (corresponding to fixed fixed data such as a frame and title characters in each screen) for each screen. As shown in FIG. 3, the data of a plurality of screens includes N main screens P-0 to P-N and sub-screens P-0 set in a matrix with respect to these main screens.
A, ... P-NA ... P-Nn. Here, n represents the maximum value of the number of sub-screens set for the main screens P-0 to PN. The main screens P-0 to P-N form the main storage means of the present invention, and the sub-screens P-0A, ... P-NA ... P-Nn form the sub storage means of the present invention. . In the following, when the screen is specified, the matrix number described in FIG. 3 is designated and explained. The keys P-0 to P-7 in the screen call key portion 21d of the keyboard 21 indicate the case where eight main screens are provided, and the case where N in FIG. 3 becomes 7. is there.

A CRT controller 30 and a video RAM 31 are connected to the CPU 2 via a bus line. Video RAM31 is character generator ROM32 and CRT interface (in the figure
Enter as CRTI / F. ) 33 connected to CRT 34. Here, character generator ROM32 is CRT34
Characters such as all characters, symbols and figures displayed in are registered in a dot pattern. Also,
The video RAM 31 stores the character data of the screen currently displayed on the CRT 34 at the present time, and includes the fixed data in one screen in the caps ROM 29 and the signals input from the thermocouple 7 and the pressure sensor 13. It is composed of fluctuation data calculated by the CPU 2 based on the above.

The keys P-0 to P-7 of the screen call key portion 21d are provided corresponding to the main screens P-0 to P-7, respectively, and the one key (P-0 to P-7) is provided. CPU 2) reads fixed data from a plurality of main screens stored in the canvas ROM 29 and stores it in the video RAM 31. After that, the fluctuation data such as the time and the current value of the injection condition are stored between the fixed data of the video RAM 31. The data group of the video RAM 31 is transmitted to the CRT 34 through the character generator RAM 32 and the CRT interface 33 and displayed on the screen of the CRT 34.

In the present embodiment, the CPU 2 executes the keyboard interface 22 according to the program stored in the system program 3.
The CRT 34 is made to display an appropriate screen in response to a key input by monitoring a key input signal input from the.

This program operates according to the flowchart shown in FIG. The flowchart will be described below.

In step 1 (hereinafter referred to as S1 in the drawing), initialization is performed with X = F, N = 0 and n = 0.
Here, X is a numerical value corresponding to the pressed key, and X =
F indicates that there is no key input. N is a row number and n is a column number.

In step 2, it is judged whether or not X ≠ F. That is, step 2 is a step of monitoring whether there is a key input. If X ≠ F, step 1 is repeated until X ≠ F. When X ≠ F, that is, when any key is pressed, the process proceeds to step 3.

In step 3, it is determined whether X ≠ F. This step 3 is a step of judging whether or not the pressed key is the same as the key pressed immediately before. X =
When it is not N, that is, when a different key is pressed, the process proceeds to step 4, and when X = N, that is, when the same key is pressed, the process proceeds to step 5.

In step 4, the value of X is entered in the row number N and the value of 0 is entered in the column number n. As a result, X-0 is set as the matrix number in the canvas ROM 29 described above.
That is, the X + 1th main screen is designated.

In step 5, 1 is added to the column number n. That is, the column number in the matrix number of the canvas ROM 29 is advanced by 1 to specify the column number.

In step 6, the column number n is compared with its maximum value n _max . That is, the maximum number of screens is checked.
When the column number n is smaller than n _max , step 7 is skipped and step 8 is proceeded to.

In step 7, the column number n is set to 0. As a result, the matrix number of the canvas ROM 29 is returned to the beginning, and one of the main screens corresponding to the specific row number N is designated.

In step 8, the data group corresponding to the matrix number N-n set in step 4 or step 5 is set to the canvas RO.
Read from M29 and display on the screen of CRT34.

In step 9, F is input to X. As a result, the variable corresponding to the key input is initialized. Then, the process proceeds to step 2 to prepare for the next key input.

By executing the steps from step 1 to step 9, when the screen call key portion 21d of the keyboard 21 is pressed, the main screen stored corresponding to the pressed key is displayed on the screen of the CRT 34. When the same key is pressed continuously, the column number in canvas ROM29 is incremented by 1 and the sub-screen corresponding to that line number is displayed on CRT34.
Is displayed in.

Next, regarding the operation of the data display device in this embodiment,
A specific example will be described. As a specific example, the case of setting the heating cylinder temperature as the injection condition will be taken up.

CPU2 on keyboard 21, P-4 key (temperature screen)
When it is detected that is pressed, the canvas data identified by the matrix number 4-0 is read out from the canvas data stored in the canvas ROM 29, and the screen (main screen) shown in FIG. ) Is displayed on CRT34. Thereafter, the heating cylinder temperature is set by inputting data from the code input section 21b and the ten-key section 21a of the keyboard 21. The heating cylinder temperature is set at four locations E1 (nozzle), E4 (heating 1), E7 (heating 2), and E10 (heating 3). In addition, according to the screen shown in FIG.
In addition to the heating cylinder temperature of this embodiment, the mold temperature, automatic squeezing, etc. can be set. The operator confirms how the heating cylinder temperature is set on the screen shown in FIG.

In order to set the heating cylinder temperature, it is necessary to know the temperature characteristics of the injection material. Then, when the P-4 key is pressed again, one is added to the column number n in the canvas data stored in the canvas ROM 29, that is, the matrix number 4-1.
The canvas data distinguished by is CR as shown in Fig. 6.
Displayed on T34. This screen (sub screen) is a table showing the heating cylinder temperature, drying temperature, drying time, and mold temperature for each type of injection resin. By referring to this table, the temperature characteristics of the injection resin can be known. be able to. Here, when injecting polyamide (nylon), referring to the screen in FIG. 6, the heating cylinder temperature is 220 to 300 ° C., and the drying temperature is
80 ~ 120 ℃, Drying time is 2 ~ 10hrs or more, Mold temperature is 60 ~ 1
It turns out that it needs to be 00 ° C.

As described above, it is necessary to set the heating cylinder temperature at four locations. So, if you press the P-4 key again, the canvas RO
The canvas data in which the column number of the canvas data in M29 is added, that is, the canvas data distinguished by the matrix number 4-2 is displayed on the CRT 34 as shown in FIG. On this screen (sub screen), the setting standards for the heating cylinder temperature and the mold temperature are displayed. That is, as described above, the heating cylinder temperature needs to be set at four places, and the heating cylinder temperature at E4 is a reference value, and in the case of the above polyamide, 220 ° C to 300 ° C.
Set to ℃, the heating cylinder temperature at E1 is 5 ℃ from the temperature at E4
It can be seen that the heating cylinder temperature at E7 should be set to a temperature obtained by subtracting 10 ° C from the temperature of E4, and the heating cylinder temperature at E10 should be set to a temperature obtained by subtracting 20 ° C from the temperature of E4.

Here, when the P-4 key is pressed again, the canvas RO
I try to display the canvas data identified by the matrix number 4-3 of the canvas data in M29, but since the canvas data is not stored in this matrix number,
The screen (main screen) distinguished by the matrix number 4-0 is displayed. Here, the heating cylinder temperature is set based on the information obtained in FIGS. 6 and 7.

In the present embodiment, for example, when the canvas data distinguished by the matrix number 4-1 in the canvas ROM 29 is displayed on the CRT 34 and the screen call key of the keyboard 21, for example, P-0 is input, , The canvas data distinguished by matrix number 0-0
Immediately displayed on CRT34.

In this embodiment, the technical data is displayed on the screen. It is extremely convenient to obtain the temperature and physical properties of the injection material easily, accurately, and quickly by looking at the screen without preparing a collection of technical documents as in the past. is there.

In this embodiment, the reference information for setting the heating cylinder temperature is shown in FIGS. 6 and 7.
When a defect occurs in injection molding, the data that serves as a reference for the defect is stored in the canvas ROM 29, and the cause of the defect can be estimated based on these data to take the countermeasure. Good. Furthermore, a canvas ROM29 is shown for the mold clamping force diagram of the toggle mechanism that is extremely important for injection molding.
It may be stored as the canvas data in the above, and this data may be referred to when setting the mold clamping force.

Also, in the canvas ROM 29, the canvas data for sequentially displaying the operations from die attachment to die removal is stored as a sub-screen, and this canvas data is referred to when performing injection molding work. May be. With this, the molding operation can be performed accurately and quickly.

Furthermore, canvas data such as the alarm operation list, alarm display list, and inspection procedure list is stored in the canvas ROM 29 as a sub-screen, and when an alarm is issued or maintenance work is performed, this canvas data is stored. You may refer to the canvas data.

[Advantage of Invention] As described above, according to the data display device of the injection molding machine of the present invention, the display means for displaying the data group and the main data memory for storing the set value and the current value of the injection condition are stored. A storage unit, a sub storage unit in which a data group used to determine the set value or used as a reference for an operation procedure is stored, and a data group in the main storage unit and a data group in the sub storage unit are selectively selected. Since the control means for displaying the information on the display means is provided, the injection conditions can be set accurately and promptly without relying on a written technical data collection, and the operation and maintenance of the injection molding machine can be performed quickly. be able to.

[Brief description of drawings]

1 to 7 are views showing a data display device in an injection molding machine according to an embodiment of the present invention. FIG. 1 is a block diagram thereof, FIG. 2 is a front view showing a keyboard, and FIG. FIG. 4 is a conceptual diagram showing a canvas ROM, FIG. 4 is a control flowchart, FIG. 5 is a diagram showing an example of a main screen, and FIGS. 6 and 7 are diagrams showing examples of sub-screens. 21 ... Keyboard, 29 ... Canvas ROM, 31 ... Video RAM,
34 ... CRT.

Claims (1)

[Scope of utility model registration request] 1. A display means for displaying a data group, a main storage means for storing a data group such as a set value and a current value of injection conditions, and a reference used for determining the set value or an operating procedure. Injection molding, characterized by comprising: sub-storage means for storing a data group; and control means for selectively calling the data group in the main storage means and the data group in the sub-storage means to display on the display means. Data display device in machine.