JP3605670B2 - Injection molding machine temperature display method - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method of displaying a temperature of an injection molding machine suitable for displaying an actually measured temperature on a display provided in the injection molding machine.
[0002]
[Prior art and problems]
Conventionally, as a temperature display method for displaying an actually measured temperature on a display provided in a control device of an injection molding machine, a display method of a temperature monitoring screen disclosed in Japanese Patent No. 30021312 is known.
[0003]
In the display method disclosed in the publication, when a display request for a temperature monitoring mode screen arrives, a symbol figure of a main temperature monitoring target part, at least a target part name of each temperature monitoring target part, and a measurement temperature are displayed on a color display device. While displaying the temperature list including the value and the set temperature value, for the temperature monitoring target portion currently under heating control, the corresponding portion in the symbol figure is displayed in color to indicate that the heating operation is being performed, Further, for the temperature monitoring target portion currently under cooling control, a color display indicating that the cooling operation is being performed is performed on a corresponding portion in the symbol figure.
[0004]
However, such a conventional temperature display method has the following problems.
[0005]
First, since it is necessary to separately display a symbol figure, other display items in a screen of a limited size are restricted, and problems such as a reduction in the size of displayed numbers and characters occur. This causes a problem that the entire screen becomes complicated.
[0006]
Second, for example, if the color of the symbol figure is red, it can be known that the heating operation is being performed, but only the current operation state can be understood, and the obtained information is limited.
[0007]
The present invention has solved such problems existing in the prior art, eliminates the need for a symbol figure, eliminates problems such as restrictions on display items and complicated screens, and simultaneously confirms an actually measured temperature. It is an object of the present invention to provide a temperature display method for an injection molding machine that enables the operating state and abnormality to be accurately and promptly grasped by dynamically and intuitively knowing a rising and falling state of an actually measured temperature.
[0008]
Means and Embodiments for Solving the Problems
[0009]
The method of displaying the temperature of the injection molding machine M according to the present invention includes the steps of: displaying the measured temperature Ta on the display 2 provided in the control device 1 of the injection molding machine M; A part or all of the external appearance of the machine M is displayed on the graphic display unit 7, and the position of the graphic display unit 7 corresponding to a part of the graphic display unit 7 where the measured temperature Ta is measured is set with respect to the measured temperature Ta. The target temperatures Sa, Sb, Sc, Sd are displayed, and the measured temperatures Ta are numerically displayed in the vicinity of the target temperatures Sa, and the numerical display corresponds to the type of operation mode at the time of temperature control. It is characterized in that it is displayed in color.
[0010]
In this case, according to a preferred embodiment, the operation mode can include two or more of the heating operation mode, the cooling operation mode, and the non-operation mode, and the measured temperatures Ta. Ta, the measured temperature Tb at the front of the heating cylinder 5, the measured temperature Tc at the middle of the heating cylinder 5, the measured temperature Td at the rear of the heating cylinder 5, the measured temperature of the material dropping section 6, and the measured temperature of the mold. Can be made. In the vicinity of the measured temperatures Ta, the measured temperatures Ta can be displayed on the graphic display sections Ga, Gb, Gc, Gd.
[0011]
As a result, at the same time as confirming the actually measured temperatures Ta, it is possible to dynamically and intuitively know the state of the rise and fall of the actually measured temperatures Ta, and it is possible to accurately and promptly grasp the operating state and abnormality. Further, since a separate symbol figure corresponding to each operation mode at the time of temperature control is not required, problems such as restrictions on display items and complicated screens are eliminated.
[0012]
【Example】
Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.
[0013]
First, the configuration of an injection molding machine M that can execute the temperature display method according to the present embodiment will be described with reference to FIGS.
[0014]
In FIG. 2, M indicated by a virtual line is an injection molding machine, which includes a machine base Mb, an injection device Mi and a mold clamping device Mc installed on the machine base Mb. The injection device Mi has a heating cylinder 5, has an injection nozzle not shown in the figure at the front end of the heating cylinder 5, and has a hopper 11 for supplying a material at the rear of the heating cylinder 5. Heaters 33a (see FIG. 3) using band heaters or the like are attached to the front, middle, and rear portions of the injection nozzle and the heating cylinder 5, respectively, to heat each part. The lower part of the hopper 11 is the material dropping section 6. Further, a control device 1 including a display 2 is disposed on a side panel Mp erected on the machine base Mb.
[0015]
FIG. 3 shows a block diagram of the control system. Note that the control device 1 shown in FIG. 3 extracts and shows only functional units that implement the temperature display method according to the present invention. Therefore, the control device 1 includes a computer function unit including basic elements such as a CPU, a ROM, and a RAM (not shown).
[0016]
Further, the control device 1 includes a control device main body 21 to which the display 2 (touch panel 2i) is connected. The control device main body 21 includes, as functional units related to the present invention, an image display data generation processing unit 22, a process data memory 23 for writing detection data of various sensors such as a position sensor, input / output information, analog information, and the like. An image data memory 24 for storing data, a setting data memory 25 for storing various setting data such as operating conditions of the molding machine, an input processing unit 26 connected to the touch panel 2i, and an image memory 27 connected to the display 2 are provided. In this case, a color liquid crystal display capable of color display can be used as the display 2.
[0017]
On the other hand, a plurality of temperature controllers 31a, 31b... Are connected to the control device main body 21, and the temperature controllers 31a, 31b. Connect each. When focusing on one temperature controller 31a, the temperature controller 31a, the thermocouple 32a, and the heater 33a form a set and are attached to a corresponding heating part, for example, an injection nozzle. As a result, the injection nozzle is heated by the heater 33a, the measured temperature Ta detected from the thermocouple 32a is given to the temperature controller 31a, and the injection controller is feedback-controlled by the temperature controller 31a so as to reach a target temperature Sa set in advance. You. The other temperature controllers 31b... Are similarly configured, and are respectively attached to the corresponding heating portions, that is, the front, middle and rear portions of the heating cylinder 5, the material dropping portions 6 below the hopper 11, and the dies. You.
[0018]
Next, a temperature display method according to the present embodiment will be described with reference to the flowchart shown in FIG.
[0019]
First, the layout of the temperature display screen 2d is as shown in FIG. On the temperature display screen 2d, a part (or the whole) of the appearance of the injection molding machine M is displayed by the graphic display unit 7, and the position corresponding to the part of the graphic display unit 7 where the measured temperature Ta is measured is displayed. The target temperatures Sa, Sb, Sc, and Sd for the measured temperatures Ta are displayed. In this case, the part to be measured is a part to which the above-mentioned thermocouples 32a are attached. Specifically, an injection nozzle for detecting the measured temperature Ta, a front part of the heating cylinder 5 for detecting the measured temperature Tb, The middle part of the heating cylinder 5 where the measured temperature Tc is detected and the rear part of the heating cylinder 5 where the measured temperature Td is detected. In addition, although illustration is omitted, the material dropping portion 6 and a mold can be similarly implemented as measurement sites.
[0020]
The current temperatures (measured temperatures) Ta, Tb, Tc, Td detected from the thermocouples 32a are displayed near, preferably below, the target temperatures Sa in association with the respective target temperatures Sa. In addition, the insulation temperatures Ha, Hb, Hc, Hd are displayed in the vicinity of, preferably below, the present temperature (actually measured temperatures) Ta... In correspondence with the respective target temperatures Ta. Desirably, the measured temperature (Ta ...) is displayed on the graphic display sections Ga, Gb, Gc, and Gd, for example, in a bar graph shape, preferably below.
[0021]
On the other hand, at the time of temperature control, the temperature controllers 31a perform feedback control on the temperature. The measured temperature data at that time is written to the process data memory 23, and the operation mode data corresponding to each operation mode during the temperature control, that is, the heating operation mode, the cooling operation mode, or the non-operation mode, is written to the process data memory 23. It is.
[0022]
If the temperature screen display is selected by the touch panel 2i, data relating to the temperature display screen 2d is read from the image data memory 24. The setting data (target temperatures Sa...) Are read from the setting data memory 25, and the actually measured temperature data (actually measured temperatures Ta...) And the operation mode data are read from the process data memory 23. It is provided to the generation processing unit 22. The setting data and the measured temperature data are combined with the temperature display screen data in the image display data generation processing unit 22, and the combined image data is written to the image memory 27. Then, the image data written in the image memory 27 is displayed on the display 2. The temperature display screen 2d in FIG. 2 shows an example of the displayed screen.
[0023]
In the image display data generation processing unit 22, the display colors of the measured temperatures Ta for each operation mode at the time of temperature control are set, and the measured temperatures Ta are displayed based on the display colors based on the settings. That is, the display of the measured temperatures Te is basically performed by the numerical display shown in FIG. 4, and the numerical display is displayed by different colors corresponding to the types of operation modes at the time of temperature control. Specifically, in the heating operation mode, the measured temperatures Te are displayed in “red” (steps S1 and S2). In the cooling operation mode, the measured temperatures Te are displayed in "blue" (steps S3 and S4). Further, in the non-operation mode, the measured temperatures Te are displayed in "yellow" (steps S5 and S6).
[0024]
Therefore, according to such a temperature display method according to the present embodiment, a separate symbol figure corresponding to each operation mode at the time of temperature control as in the related art is not required, so that there are restrictions on display items and small size of characters. In addition to solving the problems such as complication of the temperature display screen 2d and the like, it is possible to check the measured temperature Ta... Simultaneously and dynamically and intuitively to know the rising and falling state of the measured temperature Ta. Can be grasped accurately and quickly.
[0025]
Although the embodiment has been described in detail above, the present invention is not limited to such an embodiment, and the configuration, arrangement, number, method, etc. of the details can be arbitrarily set without departing from the gist of the present invention. Can be changed, added, or deleted. For example, a color liquid crystal display is exemplified as the display 2, but various color image displays such as a CRT and a plasma display can be used.
[0026]
【The invention's effect】
As described above, the temperature display method of the injection molding machine according to the present invention displays a part or all of the appearance of the injection molding machine on the temperature display screen of the display by the graphic display unit, and measures the measured temperature in the graphic display unit. The target temperature corresponding to the measured temperature is displayed at the position of the graphic display section corresponding to the part to be measured, the measured temperature is numerically displayed in the vicinity of the target temperature, and the numerical display is an operation at the time of temperature control. Since the images are displayed in different colors corresponding to the mode types, the following remarkable effects are obtained.
[0027]
(1) A symbol figure is not required, and problems such as restrictions on display items and complicated screens can be solved.
[0028]
(2) At the same time as confirming the measured temperature, it is possible to dynamically and intuitively know the rising and falling state of the measured temperature, so that the operating state and abnormality can be accurately and promptly grasped.
[Brief description of the drawings]
FIG. 1 is a flowchart showing a part of a processing procedure of a temperature display method according to a preferred embodiment of the present invention;
FIG. 2 is a layout diagram of a temperature display screen displayed by the temperature display method,
FIG. 3 is a block diagram of a control device that performs the temperature display method.
FIG. 4 is a diagram illustrating the operation of the temperature display method.
[Explanation of symbols]
Reference Signs List 1 Control device 2 Display 2d Temperature display screen 5 Heating cylinder 6 Material dropping section 7 Graphic display section M Injection molding machine Ta ... Actual measurement temperature Sa ... Target temperature Ga ... Graphic display section

Claims (4)

In a temperature display method of the injection molding machine for displaying an actually measured temperature on a display provided in a control device of the injection molding machine, a part or all of the appearance of the injection molding machine is displayed on a temperature display screen of the display by a graphic display unit. The target temperature corresponding to the measured temperature is displayed at a position of the graphic display corresponding to a part of the graphic display corresponding to the measured temperature, and the measured temperature is numerically displayed near the target temperature. And displaying the numerical value display in a different color corresponding to the type of operation mode at the time of temperature control. The method according to claim 1, wherein the operation mode includes two or more of a heating operation mode, a cooling operation mode, and a non-operation mode. The measured temperature is at least one of the measured temperature of the injection nozzle, the measured temperature of the front of the heating cylinder, the measured temperature of the middle of the heating cylinder, the measured temperature of the rear of the heating cylinder, the measured temperature of the material dropping section, and the measured temperature of the mold. 2. The method for displaying a temperature of an injection molding machine according to claim 1, wherein two or more are included. 2. The temperature display method for an injection molding machine according to claim 1, wherein the measured temperature is displayed near the measured temperature by a graphic display unit.

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