JPS6240964A - Monitor display method for injecting molding conditions - Google Patents

Abstract

PURPOSE:To permit the immediate visual knowing of a molding state by using two cursors and knowing the value of the position of a reference axis in desired two positions, value of molding conditions, difference in the position on the reference axis between the desired two positions and the difference in the value of the molding conditions by a CRT. CONSTITUTION:The two cursors and displayed to match the loci for the molding conditions and are so constructed that these cursors can be independently operat ed respectively as shown by arrows b1, b2. All of the time value a1, speed value a2 and packing pressure value a2 of the cursor 1 and the time a4, speed value a5 and packing pressure value a6 of the cursor 2 aare digitally displayed on a display part 4 on part of a CRT image plane. The positional difference of the cursors 1 and 2, i.e., time difference DELTAt=a4-a1, speed difference DELTAv=a5-a2 and packing pressure difference DELTAp=a6-a3 are simultaneously calculated and results thereof are digitally displayed on the display part 4.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to changing the molding conditions of a die-casting machine, an injection molding machine, etc.
The present invention relates to a method of displaying a monitor on an RT, and mainly relates to the handling of a movable pointer on a CRT.

[Prior Art] Figure 2 shows an example in which, among the molding conditions of a die-casting machine, the injection speed V with respect to the injection time t and the filling pressure P of the molding material into the mold cavity are monitored and displayed on a CRT l. It is.

Generally, the standard molding conditions of a die-casting machine are as shown in Fig. 2, where the acceleration time from low speed v1 to high speed ν2 is △
t1 and the pressure increase time Δt2 from filling pressure P1 to F2 are
Monitored as a control value.

Therefore, a movable finger grip (hereinafter referred to as a cursor) L is displayed perpendicular to the reference axis (in this example, the time axis t), and the operator operates to indicate this with a double-headed arrow. Cursor 1 and the time axis at that time by changing the direction of the time axis,
Each intersection point aI with the trajectory (injection speed and filling pressure)
The coordinate values of a2 and a3 are digitally displayed on the display section 3 on the right side of the figure on the CRT screen for easy reference by the operator.

[Problems to be Solved by the Invention] As mentioned above, the management values are mainly the acceleration time Δtl and the boost time Δt2, so in order to obtain these values, the following operations must be performed. It won't happen.

First, move the cursor 1 to the position where the speed starts to rise from 11 to F2, and note down the time t1 at that time. Here, in order to find the point at which the speed starts to rise, it is sufficient to move the cursor 1 and observe changes in the value of the speed V that is digitally displayed.

Next, the cursor l is moved again to note the time t2 when the speed reaches v2, and then the calculation Δt1=t2-tl is performed to obtain the acceleration time. Similarly, for the pressure increase time Δt2, first move the cursor 1 to note the time t3 when the filling pressure becomes P1, move the cursor 1 again to find the time t4 when the filling pressure becomes P2, and calculate Δtz = t4-t3. I was looking for it.

As shown above, the target management value cannot be obtained simply by positioning the cursor 1, but requires calculation, which is complicated.

[Means for Solving the Problems] In the present invention, in order to eliminate such drawbacks, in the monitor display in which the molding conditions are displayed as a locus chart of a function with respect to the reference axis on a CRT, a At least two movable pointers that are individually movable in parallel in the direction of the reference axis are displayed according to the trajectory diagram, and for each of the at least two movable pointers, the value of the position intersecting with the reference axis and the corresponding molding conditions are displayed. In addition, the difference in the value between the two movable pointers at the position intersecting the reference axis and the corresponding difference in the molding condition value are displayed.

In this case, when displaying the two movable hands, the methods of displaying the colors, lengths, etc. of both movable hands can be made different from each other on the display screen.

Further, it is also possible to display the difference in values between the movable pointers at positions intersecting the reference axis and the corresponding differences in molding condition values as absolute values.

[Operation] As described above, in the present invention, at least two cursors are used, and each cursor is appropriately moved relative to each other on the trajectory diagram of the molding conditions of the CRT, for example, when the cursor is moved from low speed to high speed in the middle of die casting injection. If you want to know the state when the speed is rising, position the first cursor at the position where the speed is about to start rising from low to high speed, position the second cursor at the position where the speed has finished changing, and then check the position of these cursors. A speed measuring device detects the low speed and high speed at the position where the vehicle is moving, displays them on the CRT, and
The time difference between these times, that is, the speed switching time and the speed difference from low speed to high speed, are calculated by the calculation device and displayed on the CRT.

Alternatively, if you want to know when the injection pressure suddenly increases after the mold cavity has been filled with molten metal near the end of die casting injection, you can place a Position the first cursor or the third cursor, position the second cursor or the fourth cursor at the position where high pressure has finished, and measure the low pressure and high pressure at the position where these cursors are located. The device detects them and displays them on the CRT, and the time difference between them, that is, the pressure rise time,
Then, the pressure difference from low pressure to high pressure is calculated by the calculation device and displayed on the CRT. Note that by using four cursors, it is also possible to know the change state of velocity and pressure simultaneously and separately.

In this way, using at least two cursors, change the position values on the reference axis and the molding condition values at two desired positions.
Not only can it be immediately known on the RT, but also the positional difference on the reference axis and the difference in molding condition values between the two desired positions can be simultaneously displayed at the top of the CRT.

[Example] Next, the present invention will be explained in more detail with reference to an example shown in the drawings.

FIG. 1 shows the method of the present invention applied to the monitor display shown in FIG. In this example, we move the cursor to 2
I used this book.

As shown in the example, the cursor 1.2 is displayed on the trajectory of the two molding conditions, and these are indicated by the double arrows bl, b, respectively.
As shown in 2, it can be operated independently. Time value aI + speed value a2 + filling pressure value a3 of cursor 1,
Time value a4 of cursor 2. Speed value aS + filling pressure value a6
are all digitally displayed on a part of the display section 4 on the CRT screen, and the position difference between cursors 2 and 1, that is, time difference Δt=a4-alt speed difference Δr=a5-a2+
The filling pressure difference Δp=a6-a3 is simultaneously calculated and displayed digitally.

The process for performing calculation 1 display from these measurements was as shown in FIG.

Therefore, to find the acceleration time Δt1, move the cursor 1 to 1
At the point where the speed starts to rise from 1 to 12, simply move cursor 2 to the point where 12 is reached, and the time difference Δ between them is
t is digitally displayed as Δt1, and the acceleration time can be read immediately.

The same applies to the pressure increase time Δt2. If you move cursor 1 to the filling pressure P1 point and cursor 2 to the filling pressure P2 point, the digital display of the time difference Δt at that time will be
The boost time becomes Δt2.

Moreover, in both cases, not only the time difference but also the speed difference Δ
Since V and filling pressure difference ΔP are also displayed at the same time, it is easy to manage the molding conditions during molding.

Additionally, cursor 1 and cursor 2 have different colors on the display screen to avoid confusion. Further, as shown in FIG. 1, the lengths of cursor 1 and cursor 2 were changed and displayed.

This is done to avoid confusion on the display screen in the same way as changing the color of the cursor 1.2, but it is also possible to connect a printer and display the trajectory of the molding conditions and the cursor in a composite manner. This is to prevent it from becoming difficult to distinguish between the two cursors when a certain screen is copied and the printer cannot display in color (in the case of monochrome display). In addition, based on the same idea, both cursors 1.
It is also possible to display cursor l and cursor 2 differently, such as by making the widths of cursors 2 and cursors 2 different, or by using a solid line and a dotted line.

Furthermore, the difference between the molding condition values obtained by both cursors (
In the example of FIG. 1, Δt, ΔV, ΔP) are their absolute values, that is, Δt=1a4−a11°Δv= l as −
az l , Δp=l a6-a3 lte may be displayed. In this way, although it is not possible to compare the magnitude of the molding conditions due to the difference in cursor position, a display can be obtained without depending on the positional relationship between the two cursors.

Furthermore, when this monitor display method is applied to the display of molding conditions of a die-casting machine, as is clear from the above explanation, acceleration time and pressure increase time are important control values, so When cursors 1 and 2 are displayed for the first time, one of them is positioned near the rising start point t1 from low speed v1 to high speed ν2, and the other is positioned near the boost start point t3. Then either cursor 1
, 2, the predetermined target value can be obtained, further simplifying the operation. By the way, in the past, the initial position of cursor 1 was the point where 1 = 0, so cursor 1 had to be moved a lot each time.
It was time consuming and inconvenient.

In order to find the starting point of the rise from low speed v1 to high speed v2, there is a conventional and commonly used method, for example, the point (1+0.05)y where low speed F1 increases by 5%.
It can be easily executed by using +. Moreover, the pressure increase starting point is P≧ with respect to the desired low setting value P1 of the filling pressure P.
It is easy to know if the point is P1.

In the other embodiment shown in FIG. 4, four cursors are used, and two cursors are used in combination.

In this case, cursor 1.2 is, as in the previous example,
The other cursors 5.6 are positioned at the point a1 = t1 where the injection speed V transitions from the low speed v1 region to the high speed F2 region and the point a4 = t2 where the injection speed V reaches the high speed v2 region, and the other cursors 5.6 are the same as in the other example described above. Then, a point a7=t3 where the filling pressure P finally starts to rise from the low pressure P1 by 1= and a point a@=t4 where it rises to a predetermined high pressure value P2. And CRT screen 7
The reference axis t above, the molding condition curves y and P, and each cursor 1,
The values al to all at the intersections of 2 and 5.6 are measured by a measuring device (not shown) and are digitally displayed on the display section 8 in the same manner as shown in the figure. Also, from these values,
An arithmetic device (not shown) calculates the acceleration time Δt1 and speed difference Δν1 at the time of speed increase, and the pressure increase time Δt2 and pressure difference ΔP2 at the time of pressure increase, and digitally displays these on the display unit 9 in the manner shown in the figure.

The steps for calculating and displaying these measurements are as shown in FIG.

In the display section 8 of FIG. 4, 10
The one shown with is a push-button switch with a lamp.The measured value is not displayed when the push-button switch 10 is pressed to turn off the lamp, and the measured value is displayed only when the push-button switch 10 is pressed and the lamp is on. I did it like that. In other words, it can be displayed selectively. For example, if pressure data is not required at the time of speed increase, the pressure at cursors 1 and 2 P=a3°P=a6
The lamp of the pushbutton switch 10 in front of cursor 5.6 can be turned off, and if speed data is not required at the time of pressure increase, the lamp of the pushbutton switch 10 in front of cursor 5.6 can be turned off. can be deleted. In addition, when calculating the difference value between the two cursors 2 and 1 or 6 and 5, only the value where the lamp of the push button switch IO is lit is used for calculation and display.

If these display units 8 and 9 take up a lot of space, they should be placed in a part other than the CRT screen where the molding condition diagram is displayed, for example, in another display part near the CRT or in a display part on the operation panel. It may also be displayed in .

Further, although the reference axis is only the time axis in the above embodiment, it may be only the stroke axis of the injection cylinder, or it may be a combination of the stroke axis and the time axis. In the case of this combination, it is best to set the front side of the injection process as the stroke axis, and automatically switch to the time axis when high-speed injection ends, filling is almost completed, and the filling pressure begins to rise. . That is,
In the first half, it is convenient to manage by stroke, but after the point when the filling pressure starts to rise, the piston rod of the injection cylinder hardly moves forward, so management by time is convenient.

[Effect] As described above, in the present invention, the method described in the claims is used, and at least two cursors are used to simultaneously calculate the value of the position intersecting the reference axis and the corresponding molding condition. In addition to displaying the value on the CRT, 2
The difference in the position that intersects with the reference axis based on the cursor position of the book,
Since the corresponding difference between the molding condition values is displayed on the CRT, the operator can visually know the molding state immediately. Therefore, it is very easy to set, procure, and control control values for molding conditions, simplifying and speeding up work, and
This can be easily ensured, and high-quality molded products can be obtained more efficiently.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of a line diagram on a CRT screen and a display section according to the present invention, and FIG.
Diagram showing an example of the diagram and display section of RT screen-F, 3rd
The figure is a block diagram showing one embodiment of the operational steps in the embodiment shown in FIG. 1, FIG. This figure is a block diagram showing one embodiment of the operational steps in the embodiment shown in FIG. 4. 1.2, 5.6...Cursor 3.4, 8.9...Display section

Claims (7)

[Claims] (1) Forming conditions as a locus diagram of the function with respect to the reference axis C
In the monitor display method for RT display, at least two movable pointers located perpendicular to a reference axis and movable individually in parallel in the direction of the reference axis are displayed in alignment with the trajectory diagram, and at least two of the movable pointers are , respectively, display the value at the position intersecting the reference axis and the corresponding molding condition value, and in addition, display the difference in the value at the position intersecting the reference axis between the two movable pointers and the corresponding molding condition value. A method for displaying injection molding conditions on a monitor, characterized by displaying a difference between the two. (2) When displaying each movable pointer, the display method of the color, length, etc. of each movable pointer is made different from each other on the display screen. How to monitor injection molding conditions. (3) Claim 1, characterized in that the difference in the values of the positions intersecting the reference axis between the movable pointers and the difference in the corresponding molding condition values are each displayed as an absolute value. Alternatively, the method for displaying injection molding conditions on a monitor according to item 2. (4) Mainly applied when displaying the injection characteristics, which is one of the molding conditions of a die-casting machine, on the monitor. When first displaying the molding condition trajectory using two movable pointers, one A patent claim characterized in that the display is displayed in the vicinity of the point where the speed transitions from the low speed region to the high speed region, and the other is displayed in the vicinity of the point where the filling pressure of the molding material into the mold cavity finally starts to increase. A method for displaying injection molding conditions on a monitor according to item 1 or 2. (5) Using four movable pointers, one consisting of two of them
The sets are located at the point where the injection speed of the molding conditions transitions from the low speed region to the high speed region and the point where the high speed region is reached, and the other set consisting of two pipes is located at the point where the injection speed of the molding conditions finally starts to increase. 3. A method for monitoring and displaying injection molding conditions according to claim 1 or 2, characterized in that the injection molding conditions are positioned at a point and a point that has risen to a predetermined value. (6) Injection molding according to claim 1, 2, or 5, in which a plurality of differences in molding condition values can be selectively displayed or not displayed. How conditions are displayed on the monitor. (7) Claims 1 and 2 in which the reference axis is a time axis, a stroke axis of the injection cylinder, or an axis changed to time from the middle of the stroke of the injection cylinder.
The method for displaying injection molding conditions on a monitor according to item 4 or 5.