JP2004148521A - Display device of injection molding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display desired data when necessary by effectively making good use of the screen of a display device of which the display area is restricted. <P>SOLUTION: The display screen of the display device in the man-machine interface part of an injection molding machine is divided into two parts and one display screen among the divided screens is used as an exclusive main screen M while the other remaining display screen among them is used as an exclusive sub-screen S. When a background editing mode for altering various set values related to molding conditions is selected while operating the injection molding machine in this display device of the injection molding machine, a message for reporting that the background editing mode is selected is displayed on the almost whole region of the sub-screen S. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a display device of an injection molding machine that displays various settings and monitor values relating to molding conditions of the injection molding machine.
[0002]
[Prior art]
2. Description of the Related Art In a display device functioning as a man-machine interface of a conventional injection molding machine, a display screen of a display is divided into two parts, one of which is a main screen and the other is a sub-screen. The main screen displays screen display data required for setting molding conditions of the injection molding machine, monitoring data from the injection molding machine, and the like, and the sub-screen displays monitoring data that is to be displayed at any time independently of the main screen area. A device that displays various data such as data so that the molding condition setting and the operation status of an injection molding machine can be efficiently performed is already known (for example, see Patent Document 1).
[0003]
Incidentally, the injection molding machine is required to make various settings relating to molding conditions of the injection molding machine, such as an injection output, a cylinder temperature, a mold temperature, a cooling time, an injection speed, and a screw rotation speed, while operating the injection molding machine. It can be the background editing mode are provided. The use of this background editing mode allows the user to change various set values under molding conditions to be produced in the next process while producing a molded product, so that there is an advantage that the next process can be prepared in a relatively short time.
[0004]
However, the screen configuration in the background editing mode is almost the same as the operating conditions under which production (operation) is currently being performed, and the only difference is that the numerical values of the various monitoring items in operation do not change in real time. Therefore, even though the injection molding machine is operating normally, there are not a few workers who judge it to be abnormal by seeing that the numerical values of various monitoring items have not changed.
[0005]
However, in a display device of a conventional injection molding machine in which a display screen of a display is divided into two and one is a main screen and the other is a sub-screen, a lot of information is displayed on a screen having a limited display area. Therefore, the display area for notifying that the background editing mode has been selected cannot be made large, and, for example, only the word "edit" is displayed at the corner of the screen.
[0006]
[Patent Document 1]
JP 2001-145947 JP
[0007]
[Problems to be solved by the invention]
As described above, in this type of conventional display device, the display for notifying that the background editing mode is selected is small and difficult to understand, so that the display device may be operated normally even when the injection molding machine is operating normally. In addition, since the values of various monitoring items did not change, many workers judged that there was an abnormality.
[0008]
Similarly, during the operation of the injection molding machine, there has been a demand to easily understand the operating state of the molding process, the state of input / output controlled by the sequence, the heater duty ratio, and the like when necessary. In addition, there has been a demand for easily knowing a change history of various setting values related to molding conditions.
[0009]
However, these demands could not be efficiently satisfied within the limited display area of the display.
[0010]
The present invention has been made in view of such circumstances, and it is an object of the present invention to effectively utilize a screen of a display device having a limited display area to display desired information when necessary. it is intended to provide a display device for an injection molding machine capable.
[0011]
[Means for Solving the Problems]
The present invention divides the display screen of a display device functioning as a man-machine interface of an injection molding machine into two, one of which is a dedicated main screen, and the other is a dedicated sub-screen. In the display device of the injection molding machine, when the background editing mode for changing various setting values related to the molding conditions while operating the injection molding machine is selected, the background editing mode is selected for substantially the entire area of the sub screen. those having a means for displaying a message indicating that that. At this time, in the area of the main screen, various setting values, monitoring data, and the like of the background of the injection molding machine to be edited are displayed.
[0012]
In the present invention, when the background editing mode is not selected, it is effective to display a button which is less frequently used during background editing as a sub-screen selection button for switching the display of the sub-screen on the sub-screen. .
[0013]
Here, the sub-screen selection button is an operation process display button for displaying the operation state in the molding process of the injection molding machine on the sub-screen, a setting history display button for displaying a change history of various setting values related to the molding conditions, and an injection molding machine. Input / output monitor display button for displaying the input / output status that is sequence-controlled in the molding process, duty ratio display button for displaying the heater duty ratio during molding of the injection molding machine, and calculation results according to the calculator key input on the sub screen And at least one calculator button for displaying a calculator display section.
[0014]
Further, the present invention provides, in the display device of the injection molding machine, an operating state acquiring means for acquiring an operating state in the molding step of the injection molding machine, and an operating state in the molding step of the injection molding machine acquired by the operating state acquiring means. On the sub screen of the display device.
[0015]
Further, in the present invention, in the display device of the injection molding machine, a change history storage means for storing change histories of various setting values related to molding conditions, and the change histories stored by the change history storage means may be changed from a latest one to a predetermined one. Change history display means for selecting a number and displaying the change history on the sub-screen of the display device.
[0016]
In the display device of the injection molding machine, the present invention provides a control state acquisition unit that acquires an input / output state that is sequence-controlled in a molding process of the injection molding machine; and a sequence control unit that acquires the sequence control acquired by the control state acquisition unit. Control status display means for displaying the input / output status on the sub screen of the display.
[0017]
Further, in the display device of the injection molding machine, the present invention provides a display device of the injection molding machine, wherein a duty ratio obtaining means for obtaining a duty ratio of the heater at the time of molding of the injection molding machine; it is obtained by a duty factor display means for displaying on the screen.
[0018]
According to the present invention, in the display device of the injection molding machine, there is provided a calculator key and calculator display means for displaying a calculation result corresponding to an input of the calculator key on the sub-screen.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In this embodiment, the present invention is applied to a display device functioning as a man-machine interface of an electric injection molding machine.
[0020]
FIG. 1 is a block diagram illustrating a main configuration of the present embodiment. In the present embodiment, a display device 10 includes an operation panel 11, an input signal controller 12, a memory unit 13, a screen display controller 14, and a clock unit 15. And a VRAM (Video Random Access Memory) 16.
[0021]
The operation panel 11 includes a display 111 having a screen display unit such as a CRT display and a liquid crystal display, and a keyboard 112 provided with a plurality of key buttons. A touch panel sensor 113 is provided on substantially the entire screen of the display 111. The screen is divided into two parts in the horizontal direction above the center. The lower wide area is the main screen area M, and the upper narrow area is the sub screen area S. In the main screen area M, screen display data required for setting molding conditions of the injection molding machine 20, monitoring data from the injection molding machine 20, and the like are displayed. Further, in the sub-screen area S, various data such as monitoring data to be displayed at any time independently of the main screen area M are displayed.
[0022]
As shown in FIG. 2, the keyboard 112 includes “clamping / extrusion”, “injection / metering”, “temperature”, “production”, “monitor”, “diagnosis”, “support”, “recording”, “recording”, Key buttons for “screen guide”, “alarm”, “setting”, and “display” are provided. When the “clamping / extrusion” key button B1 is operated alone, the current values of various setting values relating to the molding conditions of the mold clamping / extrusion process and monitoring data during the operation of the mold clamping / extrusion process are main. It functions as a display on the screen area M, and starts the background editing mode for changing various setting values of the mold clamping / extrusion process while operating the injection molding machine 20 by operating simultaneously with the “SET” key button B3. to function as those which direct. When the “injection / metering” key button B2 is operated alone, the current values of various setting values relating to the molding conditions of the injection / metering process, monitoring data during the operation of the injection / metering process, and the like are displayed in the main screen area M. It functions as a display, and instructs the start of a background editing mode for changing various setting values of the injection / metering process while operating the injection molding machine 20 by simultaneously pressing the “setting” key button B3. Function. When the "set" key button B3 is pressed alone when the background edit mode is selected, the end button instructs the end of the background edit mode and reflects the changed set value in the molding conditions at the time of actual operation. to function as.
[0023]
The input signal controller 12 outputs a signal output from the keyboard 112 when a key button of the keyboard 112 is pressed and a touch panel sensor 113 output when a screen of the display 111 is touched. signal are input. The input signal controller 12 analyzes signals from the keyboard 112 and the touch panel sensor 113 and supplies the result to the screen display controller 14 or the controller 21 of the injection molding machine 20.
[0024]
The memory unit 13 includes a main screen display data memory 131 for storing main screen display data displayed in the main screen area M of the display 111, and a sub screen for storing sub screen display data displayed in the sub screen area S. A display data memory 132, a history data memory 133 for storing history data related to setting changes of various setting values related to molding conditions, and the like are formed.
[0025]
The screen display controller 14 receives a screen display request command from the input signal controller 12. The screen display controller 14 receives the main screen display data stored in the main screen display data memory 131 and the sub screen display data stored in the sub screen display data memory 132 based on a screen display request command from the input signal controller 12. read out the door. In addition, the CPU 21 fetches molding condition set values and monitoring data of the injection molding machine 20 from the injection molding machine controller 21, and edits the main screen display data and the sub screen display data again. Then, the edited main screen display data and sub screen display data are transferred to the VRAM 16.
[0026]
The clock unit 15, the current date and time is counted.
[0027]
In the VRAM 16, the main screen display data and the sub screen display data transferred from the screen display controller 14 are overwritten and stored. The latest display data stored in the VRAM 16 is displayed in the main screen area M and the sub screen area S of the display device 111.
[0028]
The injection molding machine 20 is an electric injection molding machine using a servomotor as a drive mechanism of a mold clamping device, an injection device, and the like. The injection molding machine 20 closes and locks according to molding conditions set by the control of the injection molding machine controller 21. Injection molding is performed with each molding step of up, injection, metering, cooling, mold opening, and extrusion as one cycle.
[0029]
The injection molding machine controller 21 includes, for example, a molding setting file 22 storing various setting values relating to molding conditions for each molding pattern set for each molded product. When one of the molding patterns is selected, the setting value of the molding condition corresponding to the pattern is read from the molding setting file 22, and the molding operation of the injection molding machine 20 is controlled based on the setting value. At this time, the operating state of the injection molding machine 20 in the molding process and various monitoring data such as cylinder temperature, mold temperature, injection speed, screw rotation speed, etc. are managed in real time. In addition, the state of input / output (input: various switches, push buttons, limit switches, etc., output: display lamps, relay on / off, valve on / off, etc.) sequence-controlled in the molding process is managed in real time.
[0030]
Further, when there is a request to change the set value via the input signal controller 12, the injection molding machine controller 21 changes the set value in accordance with the request, and performs the molding process of the injection molding machine 20 based on the changed set value. to control the operation. Then, when there is a request to confirm the change of the setting value via the input signal controller 12, the latest setting value is overwritten and stored in the molding setting file 22.
[0031]
In the present embodiment configured as described above, for example, when the “injection / metering” key button B2 of the keyboard 112 is operated alone, the main screen area M of the display 111 is displayed as shown in FIG. Indicates the current values of various setting values relating to the molding conditions of the injection / metering process, monitoring data during the operation of the injection / metering process, and the like.
[0032]
On the other hand, in the sub-screen area S, a plurality of sub-screen selection buttons 31 to 40 for switching the display of the sub-screen area S are normally displayed regardless of the key operation of the keyboard 112. The sub-screen selection buttons 31 to 40 are “current value”, “temperature”, “monitor table”, “production”, “operation process”, “setting history”, “I / O monitor”, “duty ratio”, “ calculator ", it consists of a" hidden "or the like.
[0033]
Here, when the sub-screen selection button “current value” 31 is touch-operated, the current state of the injection molding machine 20, that is, the injection time, cooling time, intermediate time, screw position, and die plate The position, extrusion position, injection pressure / back pressure, mold clamping force, screw rotation speed, etc. are displayed. In this state, if an arbitrary portion in the sub-screen area S is touched, the sub-screen area S returns to the screen of the sub-screen selection button.
[0034]
Similarly, when the sub-screen selection button “Temperature” 32 is touch-operated, the temperature corresponding to the position of the hopper, the deviation temperature, and the like are displayed in the sub-screen area S, and the sub-screen selection button “Monitor table” 33 is touch-operated. Then, the filling time, the weighing time, the unloading time, the cycle time, the minimum cushion, the holding pressure switching, the injection start, the screw rotation speed, and the like corresponding to the shot number are displayed in the sub-screen area S, and the sub-screen selection button “ Is touched, the number of shots up to the present, the number of non-defective shots, the number of remaining shots, the total number of production, the number of non-defective products, the number of defective products, the remaining production number, the operation rate, the lot achievement rate, the defective rate, and the production remaining time and the like are displayed on the sub-screen area S.
[0035]
When the sub-screen selection button “operation step” 35 is touched, the operation state of the injection molding machine 20 in the molding step is displayed in the sub-screen area S, as shown in FIG. Specifically, the input signal controller 12 that has detected that the sub-screen selection button “operation step” 35 has been touched by a signal from the touch panel sensor 113 instructs the screen display controller 14 to acquire an operation state. The screen display controller 14 having received the information obtains the operating state of the injection molding machine 20 managed in real time by the injection molding machine controller 21 and displays the operating state display screen 41 stored in the sub screen display data memory 132 in advance. After editing, it is transferred to the VRAM 16 and displayed in the sub screen area S. At this time, the operating state is displayed by inverting the corresponding molding process item of the sub-screen area S in black and white as needed in accordance with the progress of the operating state. Further, abnormal time change the text and background color molding process items that apply. The operating state may be displayed by a method other than black and white inversion, such as changing the background color of the molding process item.
[0036]
When the sub-screen selection button “setting history” 36 is touch-operated, the sub-screen area S includes, as shown in FIG. Date, hour and minute, changed set value item (set value change item), molding pattern number (memory) whose set value was changed, set value after change (current set value), and change the previous setting value and (pre-set value) is the latest 3-item display. Specifically, the input signal controller 12 that has detected that the sub-screen selection button “setting history” 36 has been touch-operated by a signal from the touch panel sensor 113 instructs the screen display controller 14 to display the setting history. The screen display controller 14 having received the data selects the latest three items of change history data from the history data memory 133, edits the setting history display screen 51 stored in the sub screen display data memory 132 in advance, and transfers the edited setting history display screen 51 to the VRAM 16. to be displayed on the sub-screen area S. The number of items of the change history data is not limited to three items, but is set as appropriate according to the display area of the sub screen area S.
[0037]
When the sub-screen selection button “I / O monitor” 37 is touch-operated, the sub-screen area S has input and output that are sequence-controlled in the molding process of the injection molding machine 20, as shown in FIG. state is displayed. Specifically, the input signal controller 12 that has detected that the sub screen selection button “I / O monitor” 37 has been touched by a signal from the touch panel sensor 113 causes the screen display controller 14 to acquire the sequence control input / output state. The screen display controller 14 that has received the command acquires the sequence control input / output state of the injection molding machine 20 managed in real time by the injection molding machine controller 21, and stores it in the sub screen display data memory 132 in advance. The edited input / output status display screen 61 is transferred to the VRAM 16 and displayed in the sub screen area S.
[0038]
When the sub-screen selection button “Temperature” 32 is touched, the sub-screen area S is displayed when the sub-screen selection button “Temperature” 32 is touched, as shown in FIG. Below the temperature and the deviation temperature corresponding to the position of the hopper, the duty ratio of the heater is displayed. Specifically, the input signal controller 12 that has detected that the sub-screen selection button “power ratio” 38 has been touched by a signal from the touch panel sensor 113 instructs the screen display controller 14 to acquire the heater power ratio. Upon receiving the command, the screen display controller 14 acquires the measured temperature, the deviation temperature, and the duty ratio of the heater from the monitoring data of the injection molding machine 20 managed in real time by the injection molding machine controller 21, and previously stores the sub-screen display data memory. After editing the heater duty display screen 71 stored in 132, the screen is transferred to the VRAM 16 and displayed in the sub-screen area S.
[0039]
When the sub-screen selection button “calculator” 39 is touch-operated, the sub-screen area S includes a calculator display section 81, a numerical value input button 82, a screen clear button 83, as shown in FIG. There is displayed. Here, when the numerical value input button 82 is touch-operated, the calculator key 84 is displayed so as to overlap the main screen area M. Then, the calculation formula and the calculation result by the touch operation of the calculator key 84 are displayed on the calculator display unit 81. When the screen clear button 83 is touched, the sub screen area S returns to the screen of the sub screen selection button.
[0040]
When the sub-screen selection button “non-display” 40 is touched, the sub-screen area S is a non-display screen.
[0041]
By the way, these sub-screen selection buttons 31 to 40 are buttons that are used less frequently during background editing in which various setting values relating to molding conditions are changed while operating the injection molding machine 20.
[0042]
Thus, the screen display controller 14 executes the processing shown in the flowchart of FIG. That is, in the input signal controller 12, a key signal from the keyboard 112 (a signal of the "clamping / extrusion" key button B1 and the "setting" key button B3, or an "injection / weighing" key button B2 and a "setting" key button B3 When the background editing mode is selected by the signal (ST1) and the background editing mode is instructed to the screen display controller 14 (ST1), the screen display controller 14 sets the molding conditions in the injection / weighing process. The current values of various setting values regarding the injection and the monitoring data during the operation of the injection / metering process are fetched from the injection molding machine controller 21, and the main screen display data of the injection / metering process is edited and transferred to the VRAM 16. Also, as ST2, an edit mode notification message (for example, “edit mode is selected. Changes in set values are not reflected in operating conditions”) preset in the sub-screen display data memory 132 is read out and stored in the VRAM 16. Forward. As a result, as shown in FIG. 10, various setting values and monitoring data required for background editing are displayed in the main screen area M, and the editing mode notification message is almost entirely displayed in the sub screen area S. There is displayed.
[0043]
Thereafter, the input signal controller 12 detects that the end of the background editing mode is selected by the key signal from the keyboard 112 (the signal of the “setting” key button B3), and instructs the screen display controller 14 to perform the background editing. When the end of the mode is instructed (ST3), the screen display controller 14 reads the display data of the sub-screen selection buttons 31 to 40 from the sub-screen display data memory 132 and transfers it to the VRAM 16 as ST4. By doing so, the sub screen area S returns to the screen of the sub screen selection buttons 31 to 40.
[0044]
As described above, according to the present embodiment, when the background editing mode of the injection molding machine 20 is selected, the sub screen of the display device 111 having the display screen divided into the main screen area M and the sub screen area S is divided. A message notifying that the background editing mode has been selected is displayed in substantially the entire area of the screen area S, so that the operator of the operation panel 11 can see at a glance that the background editing mode has been selected. Accordingly, it is possible to eliminate a worker who determines that the value of each of the monitoring items has not changed even though the injection molding machine is operating normally and determines that the value is abnormal.
[0045]
Here, in a normal state such as during actual operation, the sub-screen selection buttons 31 to 40 displayed in the sub-screen area S are buttons that are used less frequently during background editing. Therefore, even if the display of the sub screen area S is changed to the above message when the background editing mode is selected, the background editing operation performed while checking the display of the main screen area M does not interfere.
[0046]
Further, in the present embodiment, an “operation step” button 35 is provided as a sub screen selection button displayed in the sub screen area S, and when the “operation step” button 35 is touched, the sub screen area S is displayed. The operating state of the injection molding machine 20 in the molding process is displayed. Therefore, the operator of the operation panel 11 can know the operating state of the injection molding machine 20 in the molding process by effectively utilizing the screen of the display 111 having a limited display area.
[0047]
Similarly, in the present embodiment, a “setting history” button 36 is provided as a sub-screen selection button, and when the “setting history” button 36 is touched, various setting values for molding conditions are changed in the sub-screen area S. Since the history is displayed, the operator of the operation panel 11 can effectively utilize the screen of the display 111 having a limited display area to know the change history of various setting values related to the molding conditions.
[0048]
In the present embodiment, an “I / O monitor” button 37 is provided as a sub-screen selection button, and when the “I / O monitor” button 37 is touch-operated, the sub-screen area S of the injection molding machine 20 is displayed. Since the input / output state subjected to the sequence control in the molding process is displayed, the operator of the operation panel 11 can effectively utilize the screen of the display device 111 having a limited display area to input the sequence controlled input / output. the output of the state can be known.
[0049]
Further, in the present embodiment, a “power ratio” button 38 is provided as a sub-screen selection button, and when the “power ratio” button 38 is touch-operated, the heater in the sub-screen region S during molding of the injection molding machine 20 is provided. Since the energization ratio is displayed, the operator of the operation panel 11 can effectively use the screen of the display 111 having a limited display area to know the heater energization ratio during molding of the injection molding machine 20. be able to.
[0050]
Note that, in this embodiment, the case where the start of the background editing mode and the operation for confirming the background editing mode are instructed by the respective key buttons B1 to B3 of the keyboard 112 are described. it may be performed.
[0051]
Further, the present invention is not limited to the display 111 of the operation panel 11 functioning as a man-machine interface of the electric injection molding machine. For example, the display of the operation panel functioning as a man-machine interface of the hydraulic injection molding machine also it is applicable. Also, one cycle of the molding process is not limited to the one in the embodiment.
[0052]
In addition, it goes without saying that various modifications can be made without departing from the spirit of the present invention.
[0053]
【The invention's effect】
As described in detail above, according to each of the inventions according to claims 1 to 3, it is possible to display at a glance that the background editing mode is selected by using the sub-screen area. In addition, even though the injection molding machine is operating normally, it can be seen that the values of various monitoring items have not changed, and an operator who determines that there is an abnormality can be eliminated.
[0054]
In particular, according to the second aspect of the invention, even if the display content of the sub-screen area is changed so that the operator can see at a glance that the background editing mode is selected, the background editing operation is not hindered. an effect that does not Tasa.
[0055]
According to each of the third and fourth aspects of the present invention, it is possible to display the operating state of the injection molding machine in the molding process using the sub screen area.
[0056]
Further, according to the third and fifth aspects of the present invention, it is possible to display a change history of various setting values relating to molding conditions by using the sub screen area.
[0057]
According to each of the third and sixth aspects of the present invention, it is possible to display the input / output state that is sequence-controlled in the molding process of the injection molding machine by using the sub screen area.
[0058]
According to each of the third and seventh aspects of the present invention, it is possible to display the heater duty ratio during molding of the injection molding machine by using the sub screen area.
[0059]
According to the third and eighth aspects of the invention, it is possible to display the calculation result of the calculator using the sub screen area.
[0060]
Therefore, according to the present invention, it is possible to provide a display device of an injection molding machine capable of displaying desired information when necessary by effectively utilizing a screen of a display device having a limited display area. .
[Brief description of the drawings]
FIG. 1 is a block diagram showing a main configuration of an embodiment of the present invention.
FIG. 2 is a schematic diagram showing a keyboard provided on an operation panel in the embodiment.
FIG. 3 is a schematic diagram showing an example of one screen of the display device in the embodiment.
FIG. 4 is a schematic diagram showing an example of an operation state display screen displayed in a sub screen area in the embodiment.
FIG. 5 is a schematic diagram showing an example of a setting history display screen displayed in a sub screen area in the embodiment.
FIG. 6 is a schematic diagram showing an example of an input / output state display screen displayed in a sub screen area in the embodiment.
FIG. 7 is a schematic diagram showing an example of a heater duty ratio display screen displayed in a sub screen area in the embodiment.
FIG. 8 is a schematic diagram showing an example of a calculator screen displayed on the screen of the display device in the embodiment.
FIG. 9 is a flowchart showing a procedure of automatic screen switching control executed by the screen display controller of the embodiment.
FIG. 10 is a schematic diagram showing an example of a screen of the display device when a background editing mode is selected in the embodiment.
[Explanation of symbols]
10 Display device
11 ... Operation panel
111 ... Display
112 ... Keyboard
113 ... Touch panel sensor
12: Input signal cotton roller
13 Memory part
14. Screen display controller
16 ... VRAM
20 ... Injection molding machine
21 ... Injection molding machine controller
M: Main screen area
S: Sub-screen area

Claims (8)

Injection molding machine that divides the display screen of the display unit that functions as a man-machine interface of the injection molding machine into two parts, one of which is a dedicated main screen and the other display screen is a dedicated sub-screen Display device,
When the background editing mode for changing various setting values for molding conditions while operating the injection molding machine is selected, a message notifying that the background editing mode has been selected is provided over substantially the entire area of the sub-screen. A display device for an injection molding machine, comprising: means for displaying. 2. A sub-screen selection button for switching the display of the sub-screen when the background editing mode is not selected, wherein a button which is used less frequently during background editing is displayed on the sub-screen. Display of injection molding machine. The sub-screen selection button is an operation process display button for displaying an operation state in the molding process of the injection molding machine on the sub-screen, and a setting history display button for displaying a change history of various setting values related to the molding conditions on the sub-screen. An input / output monitor display button for displaying on the sub-screen an input / output state that is sequence-controlled in the molding process of the injection molding machine, and a duty ratio for displaying on the sub-screen the heater duty during molding of the injection molding machine. 3. A display device for an injection molding machine according to claim 2, further comprising at least one of a display button and a calculator button for displaying a calculator display section for displaying a calculation result corresponding to an input of a calculator key on said sub-screen. . Injection molding machine that divides the display screen of the display unit that functions as a man-machine interface of the injection molding machine into two parts, one of which is a dedicated main screen and the other display screen is a dedicated sub-screen Display device,
Operating state obtaining means for obtaining an operating state in the molding process of the injection molding machine; and operating state display for displaying an operating state in the molding process of the injection molding machine obtained by the operating state obtaining means on a sub-screen of the display. And a display device for an injection molding machine. Injection molding machine that divides the display screen of the display unit that functions as a man-machine interface of the injection molding machine into two parts, one of which is a dedicated main screen and the other display screen is a dedicated sub-screen Display device,
A change history storing means for storing a change history of various setting values relating to the molding condition; and a change for selecting a predetermined number of change histories stored by the change history storage means from the latest one and displaying the selected change history on a sub-screen of the display. A display device for an injection molding machine, comprising: history display means. Injection molding machine that divides the display screen of the display unit that functions as a man-machine interface of the injection molding machine into two parts, one of which is a dedicated main screen and the other display screen is a dedicated sub-screen Display device,
A control state acquisition unit for acquiring an input / output state subjected to sequence control in the molding process of the injection molding machine; and a sequence-controlled input / output state acquired by the control state acquisition unit displayed on a sub-screen of the display unit. A display device for an injection molding machine, comprising: a control state display means for causing the control device to display the information. Injection molding machine that divides the display screen of the display unit that functions as a man-machine interface of the injection molding machine into two parts, one of which is a dedicated main screen and the other display screen is a dedicated sub-screen Display device,
Power supply obtaining means for obtaining a heater power supply rate during molding of the injection molding machine; and a power supply rate display means for displaying the heater power supply rate obtained by the power supply rate obtaining means on a sub-screen of the display. A display device of an injection molding machine characterized by the above-mentioned. Injection molding machine that divides the display screen of the display unit that functions as a man-machine interface of the injection molding machine into two parts, one of which is a dedicated main screen and the other display screen is a dedicated sub-screen Display device,
A display device for an injection molding machine, comprising: a calculator key; and a calculator display means for displaying a calculation result corresponding to an input of the calculator key on the sub-screen.

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