JP2014213455A - Display device of injection molder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device of an injection molder which classifies the screen-switching buttons into a first group in which a worker cannot change the arrangement of the button and a second group changeable, and simultaneously displays the screen-switching buttons of respective groups.SOLUTION: A display device of an injection molder classifies the screen-switching buttons F1 to F10 into a first group G1 in which a worker cannot change the arrangement of the button and a second group G2 changeable, and can display by switching a plurality of screens. In the first group G1, the screen using regardless of the job description of the worker being a list display screen of at least screens is included, and the optional screen using in response to the job description of the worker is allotted in the second group G2 to be arranged. Even if the second group G2 is arranged to be optimum for a specified worker, another worker performing a different work also can easily find a desired screen by the list display screen of the first group G1.

Description

  The present invention relates to operability of a display device of an injection molding machine, and particularly to improvement of screen switching operation.

  An injection molding machine is a machine that manufactures a plastic molded product through processes such as mold closing, mold clamping, injection, pressure holding, weighing, mold opening, and extrusion. The display device of the injection molding machine sets the operating conditions of these processes, displays changes in physical quantities such as the position, speed, and pressure of the injection molding machine in each process in a graph, and operates the injection molding machine. A screen for displaying information is displayed. In this way, many types of screens are prepared in the injection molding machine, and the number may be several tens or more depending on the injection molding machine.

  A screen switching button is provided on the display device of the injection molding machine so that an operator operating the injection molding machine can select and display a desired screen from among a large number of screens. Examples of the screen switching button include an electric switch incorporated in the display device and a switch using a touch panel.

  The layout of the screen switching buttons is generally determined by the injection molding machine manufacturer, but in the display device of the injection molding machine using a touch panel, the layout of the screen switching buttons is operated for the convenience of the injection molding machine. A device that can be changed by an operator is known (see Patent Document 1). In addition, in an injection molding machine equipped with a display unit that divides the screen into groups and switches the screens of the same screen group after selecting a group, the entire screen configuration is displayed for each group and when a button in the group is pressed It is also known that screen switching is performed (see Patent Document 2).

JP 2004-155072 A JP 2010-264769 A

The technique disclosed in Patent Document 1 can improve the usability by arranging important screens frequently used by workers in a collective place by utilizing the fact that the user can change the arrangement of the screen switching buttons. .
However, the importance of the screen differs depending on the work content of the worker. For example, a screen that displays the operation information of an injection molding machine is important for an operator who performs only simple operations such as start and end of a molding operation, but for an operator who sets operating conditions of an injection molding machine, The most important screen is to set the operating conditions for each molding process.

For this reason, when the arrangement of the screen switching buttons is changed so that the operability is most improved according to the work contents of each worker, the arrangement of the screen switching buttons that is easy to operate for one worker is different for another worker. There arises a problem that the arrangement becomes difficult to operate. That is, if the arrangement of the screen switching buttons is changed for a specific worker, it becomes difficult for another worker to find a desired screen, resulting in a significant decrease in operability.
Accordingly, an object of the present invention is to categorize the screen switching buttons into a first group in which the operator cannot change the arrangement and a second group in which the change can be made in order to solve the above-described problems of the prior art. Then, it is providing the display apparatus of the injection molding machine which displays simultaneously the screen switching button of each group.

The invention according to claim 1 of the present application is a display device for an injection molding machine having means for displaying a plurality of screens and means for switching and displaying the screens by means of a plurality of screen switching buttons. The arrangement of the screen switching buttons belonging to the first group and the second group and belonging to the first group cannot be changed on the display device, and the arrangement of the screen switching buttons belonging to the second group is Changeable on the display device, the first group at least means for displaying a list of screens of the injection molding machine, means for selecting any screen from the list of screens, A display device for an injection molding machine, comprising a screen having means for displaying the selected screen.
The invention according to claim 2 is the display device for an injection molding machine according to claim 1, wherein the first group and the second group can be distinguished from each other by different display forms. is there.

According to the present invention, the screen switching buttons are classified into a first group in which the operator cannot change the arrangement and a second group in which the arrangement can be changed, and the first group is independent of the work contents of the operator. It is a screen to be used and includes at least a screen list display screen. Arbitrary screens to be used can be allocated and arranged in the second group according to the work content of the worker.
Thereby, the operator who operates the injection molding machine can easily select and display a desired screen by the second group including the arrangement of the screen switching buttons most suitable for the work contents of the worker. . Further, even if the arrangement of the second group is optimal for a specific worker, an operator who performs another work can easily display a desired screen by using the list display screen of the first group screen. Can be found.

It is a figure explaining the injection molding machine provided with the display apparatus. It is a figure explaining the screen switching button displayed on the display screen. It is a figure explaining the memory which memorized the arrangement of a screen change button. It is a figure explaining the example which displayed the arrangement | sequence of the screen switching button memorize | stored in FIG. It is an example of a screen list display screen. 6 is an example of a screen displayed by pressing an injection setting button in FIG. It is a figure explaining the memory which memorized the screen list which can change arrangement. It is a figure explaining the arrangement | sequence of a screen group switching button and a screen switching button. It is a figure explaining the screen switching button which is not a touch panel type.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram illustrating an injection molding machine provided with a display device. The injection molding machine M includes a mold clamping part Mc and an injection part Mi on a machine base (not shown). The injection part Mi heats and melts the resin material (pellet) and injects the molten resin into the cavity of the mold 40. The mold clamping portion Mc mainly opens and closes the mold 40.

  First, the injection part Mi will be described. A nozzle portion 2 is attached to the tip of the injection cylinder 1, and a screw 3 is inserted into the injection cylinder 1. The screw 3 is provided with a pressure sensor 5 such as a load cell that detects a resin pressure by a pressure applied to the screw 3. The screw 3 is rotated by a screw rotating servo motor M2 via a transmission means 6 composed of a pulley, a belt and the like. Further, the screw 3 is driven by a servo motor M1 for moving forward and backward through a transmission means 7 including a mechanism for converting a rotational motion such as a pulley, belt, ball screw / nut mechanism, etc. into a linear motion. It is moved in the axial direction. Reference numeral P1 is a position / speed detector that detects the position and speed of the screw 3 in the axial direction by detecting the position and speed of the servo motor M1 for moving forward and backward, and reference numeral P2 is the servo motor M2. This is a position / speed detector that detects the rotational position and speed of the screw 3 by detecting the position and speed. Reference numeral 4 denotes a hopper that supplies resin to the injection cylinder 1.

  Next, the mold clamping part Mc will be described. The mold clamping portion Mc includes a movable platen forward / reverse servo motor M3 for moving the movable platen 30 back and forth, a rear platen 31, an ejector forward / reverse servo motor M4 for ejecting an ejector pin for pushing a molded product out of the mold, a movable platen 30, A tie bar 32, a fixed platen 33, a toggle mechanism 34, and an ejector mechanism 35 are provided. The rear platen 31 and the fixed platen 33 are connected by a plurality of tie bars 32, and the movable platen 30 is disposed so as to be guided by the tie bars 32. A movable mold 40 a is attached to the movable platen 30, and a fixed mold 40 b is attached to the fixed platen 33.

  The control device 10 of the injection molding machine has a CNC CPU 20 that is a microprocessor for numerical control, a PMC CPU 17 that is a microprocessor for a programmable machine controller, and a servo CPU 15 that is a microprocessor for servo control. By selecting mutual input / output, information can be transmitted between the microprocessors.

The servo CPU 15 is connected to a ROM 13 that stores a control program dedicated to servo control that performs processing of a position loop, a speed loop, and a current loop, and a RAM 14 that is used for temporary storage of data. The servo CPU 15 is connected so that the A / D (analog / digital) converter 16 can detect pressure signals from the pressure sensor 5 that detects various pressures such as injection pressure provided on the injection molding machine main body side. ing. Further, the servo CPU 15 includes a servo amplifier 12 for driving a screw rotation servomotor M2 connected to the injection shaft and a screw rotation servomotor M2 connected to the screw rotation shaft based on a command from the CPU15. 11 is connected, and outputs from position / speed detectors P1, P2 attached to the servo motors M1, M2 are fed back to the servo CPU 15. The rotational position of each servo motor M1, M2 is calculated by the servo CPU 15 based on the position feedback signal from the position / speed detectors P1, P2, and is updated and stored in each current position storage register.
Further, servo amplifiers 9 and 8 are connected to the movable platen forward / reverse servo motor M3 for driving the mold clamping shaft for clamping the mold and the ejector forward / reverse servo motor M4 for removing the molded product from the mold, respectively. ing. Outputs from position / speed detectors P3 and P4 attached to the servo motors M3 and M4 are fed back to the servo CPU 15. The rotational positions of the servo motors M3 and M4 are calculated by the servo CPU 15 based on the position feedback signals from the position / speed detectors P3 and P4, and updated and stored in the current position storage registers.

  A ROM 18 storing a sequence program for controlling the sequence operation of the injection molding machine and a RAM 19 used for temporary storage of calculation data are connected to the PMC CPU 17, and an automatic operation program for overall control of the injection molding machine is connected to the CNC CPU 20. A ROM 21 storing various programs and the like and a RAM 22 used for temporary storage of calculation data are connected.

  A data storage RAM 23 composed of a non-volatile memory is a molding data storage memory for storing molding conditions relating to injection molding work, various set values, parameters, macro variables, and the like. A display device / MDI (manual data input device) 25 having the display device 60 of FIG. 2 is connected to the bus 26 via an interface (I / F) 24 to select a graph display screen and a function menu and input various data. A numeric keypad for inputting numerical data and various function keys are provided. The display device 60 of the injection molding machine is provided with a screen switching button so that the operator who operates the injection molding machine M can select and display a desired screen from among many screens. As the screen switching button, the function key, a switch using a touch panel, or the like can be used. As the display device 60, an LCD (liquid crystal display device) can be used.

  With the above configuration, the PMC CPU 17 controls the sequence operation of the entire injection molding machine, and the CNC CPU 20 issues a movement command to the servo motors of each axis based on the operating program of the ROM 21 and the molding conditions stored in the data storage RAM 23. Based on the movement command distributed to each axis and the position and speed feedback signals detected by the position / speed detectors P1, P2, P3, P4, etc. Servo control such as loop control, speed loop control and current loop control is performed, so-called digital servo processing is executed, and drive control of the servo motors M1, M2, M3 and M4 is performed.

  The above-described configuration is the same as the control device of the conventional electric injection molding machine, and the point different from the conventional one is to display a screen for performing various settings for performing the molding operation by the injection molding machine on the ROM 18. A program for displaying a screen switching button on the display device of the injection molding machine and displaying a screen corresponding to the operation of the selected screen switching button is stored.

  FIG. 2 is a diagram for explaining the screen switching button displayed on the display unit. The display screen of the display device 60 is configured as a touch panel. As shown in FIG. 2, two or more screen switching buttons are displayed on the display screen of the display device 60 of the display device / MDI 25 provided in the injection molding machine M. In FIG. 2, ten screen switching buttons F1 to F10 are displayed.

  In the embodiment of the present invention, the display screen 61 of the display device 60 is classified into the first group G1 in which the operator cannot change the arrangement of the screen switching buttons and the second group G2 in which the change is possible. The screen switching buttons for each group are displayed simultaneously. The first group G1 includes screen switching buttons F1 to F3, and the second group includes screen switching buttons F4 to F10. The screen switching buttons F1 to F10 are arranged in a line at the bottom of the display screen 61, but the left and right sides, the top, or the first group G1 and the second group G2 are arranged in two different lines. You may arrange.

  FIG. 3 is a diagram for explaining a memory storing an array of screen switching buttons. Data for displaying on the display screen 61 what screen switching buttons F1 to F10 displayed on the display screen 61 of the display device 60 are is stored in a memory (for example, ROM 18). . The screen switching buttons F1 to F3 belong to the first group G1, and the operator cannot change the arrangement of the screen switching buttons. The screen switching buttons F4 to F10 belong to the second group G2, and the operator can change the arrangement of the screen switching buttons.

  The screen switch button F1 displays a screen list, the screen switch button F2 displays the operating status, the screen switch button F3 displays diagnosis, the screen switch button F4 displays injection settings, and the screen switch button F5 displays weighing settings. Is displayed, the mold opening / closing is displayed on the screen switching button F6, the protrusion is displayed on the screen switching button F7, the temperature setting is displayed on the screen switching button F8, the production number is displayed on the screen switching button F9, and the screen switching button is displayed. In F10, an injection waveform is displayed. When one of these screen switching buttons is pressed, the display screen 61 of the display device 60 is switched to the corresponding screen.

  FIG. 4 is a diagram for explaining an example in which the array of screen switching buttons stored in FIG. 3 is displayed. Ten screen switching buttons F1 to F10 are displayed. The first group G1 includes three screen switching buttons F1 to F3, and the second group includes seven screen switching buttons F4 to F10. As described above, the screen switching buttons belonging to the first group G1 cannot change the arrangement of the screen switching buttons by the operator. The screen switching buttons belonging to the second group can be arbitrarily changed by the operator in the arrangement of the screen switching buttons. Note that the memory storing the arrangement of the screen switching buttons F1 to F10 in FIG. 3 may be prepared for each worker or for each group of workers having the same job content. As a result, the display device can be operated with an optimal screen layout for each worker.

  The screens displayed by the screen switching buttons belonging to the first group G1 include at least a screen for displaying a list of screens as disclosed in Patent Document 2. Further, the first group G1 further includes a screen switching button (screen switching button F2) for displaying a screen to be used regardless of the work contents of the operator, such as an operating state display screen or a diagnostic screen of the machine (injection molding machine M). , A screen switching button F3) may also be included.

  When the operator presses a screen switching button F1 for displaying a screen list on the display screen 61 shown in FIG. 4, a screen list 62 shown in FIG. 5 is displayed on the display screen 61. When the injection setting button 63 shown in FIG. 5 is pressed, the screen shown in FIG. 6 is displayed. FIG. 6 shows an example of the injection setting screen 64 displayed by pressing the injection setting button 63 in FIG. In the injection setting screen 64, the speed and position of the first stage of injection, the speed and position of the second stage of injection, the speed of the third stage of injection, the switching position, the pressure and time of the first stage of holding pressure, and the pressure and time of the second stage of holding pressure are input. I do. Screen switching buttons F1 to F10 are displayed at the bottom of the injection setting screen 64.

  The screens displayed by the screen switching buttons F4 to F10 belonging to the second group G2 shown in FIGS. 4, 5, and 6 are screens for setting the operating conditions of each process of the injection molding machine M, etc. The screen required according to the work content can be extracted from the list by the worker and assigned to any screen switching button. Thereby, it is possible to realize an arrangement of screen switching buttons that is optimal for the work content of the worker. FIG. 7 is a diagram illustrating a memory that stores a list of screens whose arrangement can be changed. No. 1 is an injection setting screen. 2 is a measurement setting screen, No3. Is the mold open / close setting screen. 4 is a protrusion setting screen, No. 4; 5 is a temperature setting screen, No.5. 6 is the production number setting screen, No. 6 7 is an injection waveform display screen. 8 is a measurement waveform display screen, No. 8; 9 is an unloader setting screen. 10 is a core setting screen. 11 alarm screen, no. 12 is a maintenance screen. 13 is a peripheral device setting screen. 14 is a memory screen. Reference numeral 15 denotes a mold thickness adjustment screen. The screen list stored in the memory shown in FIG. 7 is displayed on the display screen 61 of the display device 60, and the operator extracts a screen necessary for the work from the list and assigns it to the screen switching buttons F4 to F10. Can do.

  By the way, the screen switching buttons F1 to F3 belonging to the first group G1 are more likely to be used more frequently than the screen switching buttons F4 to F10 belonging to the second group G2. For this reason, it is desirable to set the display form of the screen switching button to a different display form between the first group G1 and the second group G2. For example, if each group can be easily identified by the color of the screen switching button, the visibility of the screen switching button is improved and the operability is further improved (see FIGS. 4, 5, and 6).

  In addition, the screen switching buttons may be arranged with only buttons for directly switching to a desired screen, and the screens are classified into screen groups such as “operation information”, “injection metering”, “mold opening / closing”, “setup”, and the like. These groups may be arranged. When the screen group is switched, a screen switching button corresponding to the switched group is displayed (FIG. 8). Of the buttons arranged in FIG. 8, the lower row is a screen group selection button and the upper row is a screen switching button. The display of the screen switching button may be a name representing a screen or a group of screens, or may be a graphic display such as an icon.

  Note that the screen switching buttons F1 to F10 may switch the screen by touching the button itself displayed on the touch panel as described above, or the displayed screen switching buttons instead of using the touch panel. The screen may be switched by electrical switches 80 to 89 provided outside the display unit so as to understand the correspondence with (screen switching button displays 70 to 79) (FIG. 9).

M injection molding machine Mc mold clamping part Mi injection part 1 injection cylinder 2 nozzle part 3 screw 4 hopper 5 pressure sensor 6 transmission means 7 transmission means

10 Controller 11 Servo amplifier 12 Servo amplifier 13 ROM
14 RAM
15 Servo CPU
16 A / D (analog / digital) converter 17 PMCCPU
20 CNCCPU
21 ROM
22 RAM
23 Data storage RAM
24 interface (I / F)
25 Display / MDI
26 Bus

30 Movable platen 31 Rear platen 32 Tie bar 33 Fixed platen 34 Toggle mechanism 35 Ejector mechanism

40 mold 40a movable mold 40b fixed mold

M1 Screw servo motor M2 Screw rotation servo motor M3 Movable platen servo motor M4 Ejector forward / reverse servo motor

P1 Position / speed detector P2 Position / speed detector P3 Position / speed detector P4 Position / speed detector

60 Display Device 61 Display Screen 62 Screen List 63 Injection Setting Button 64 Injection Setting Screen

70, 71, 72, 73, 74, 75, 76, 77, 78, 79 Screen switching button display 80, 81, 82, 83, 84, 85, 86, 87, 88, 89 Electric switch

F1, F2, F3, F4, F5, F6, F7, F8, F9, F10 Screen switching buttons

G1 first group G2 second group

Claims (2)

In a display device of an injection molding machine having means for displaying a plurality of screens and means for switching and displaying the screens with a plurality of screen switching buttons,
The plurality of screen switching buttons are classified into a first group and a second group, and the arrangement of the screen switching buttons belonging to the first group cannot be changed on the display device, and the second group is assigned to the second group. The arrangement of the screen switching buttons to which it belongs can be changed on the display device,
Means for displaying at least a list of screens of the injection molding machine in the first group;
Means for selecting any screen from the list of screens;
A display device for an injection molding machine, comprising a screen having means for displaying the selected screen.   2. The display device for an injection molding machine according to claim 1, wherein the first group and the second group can be identified by different display forms.