JP2008155512A - Molding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable an operator to simply and easily set the display target period of an actually measured data graph image which displays the actually measured data of a molding operation cycle by a graph (the operation period of a machine to be displayed) with a good break point. <P>SOLUTION: In the display mode of the actually measured data graph image which displays the actually measured data of the molding operation cycle, the start of a predetermined process is selected and set as the start point of graph display while the completion of the predetermined process is selected and set as the terminal point of the graph display and the actually measured data from the start of a process set as the start point of the graph display to the completion of the process set as the terminal point of the graph display is displayed as a line drawing graph. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a molding machine such as an injection molding machine or a die casting machine, and in particular, includes a display device capable of displaying images in various display modes under the control of a controller that controls the entire machine (molding machine). It relates to a molding machine.

  Recent molding machines such as injection molding machines have a display device such as a color liquid crystal display, and various operation condition setting mode images for setting or confirming the operation conditions for automatic operation by this display device. Various measurement data display mode images for displaying the actual measurement data of many measurement items during automatic operation, periodic inspection mode images for automatically displaying the inspection items at the periodic inspection period and urging regular inspections, occurrence of abnormalities Sometimes an alarm mode image for recognizing this is displayed.

  Among the above-described actual measurement data display mode images, there is a one-cycle actual measurement graph image that graphically displays actual measurement data of one molding cycle (one molding operation cycle). By using this one-cycle actual measurement graph image, 1 The operation of each part of the machine during the molding cycle is visible on one screen.

  Also known is a machine in which an operator can specify a display target period (an operation period of a machine to be displayed) to be displayed in a one-cycle actual measurement graph image. In such a machine, the start of a predetermined process is displayed in a graph. The end point of the graph display is set by the elapsed time from the start of the predetermined process set as the start point of the graph display. By specifying the display target period to be displayed in the one-cycle actual measurement graph image in this way, a graph display of the actual measurement data for a predetermined period in one molding cycle and a graph display of the actual measurement data for a period exceeding one molding cycle are obtained. Be able to.

  As described above, the designation of the display target period to be displayed in the one-cycle actual measurement graph image has conventionally been performed by setting the start point of the graph as the start of the predetermined process and the end point of the graph display as the start point of the graph display. It was to be specified by the elapsed time from the start of. For this reason, it becomes difficult to make the end point of the graph display coincide with the end timing of a certain process, and in the graph display of the actual measurement data, necessary actual measurement data is missing or extra actual measurement data is stuck. Was significantly worse. For this reason, it is the present situation that the operator itself hardly specifies the display target period to be displayed in the one-cycle actual measurement graph image, and the display target period (display) that the operator displays in the one-cycle actual measurement graph image is displayed. Therefore, there has been a demand for a user-friendly machine that can easily and easily break the operation period of the machine.

  The present invention has been made in view of the above points, and an object of the present invention is to display a display target period (operation period of a machine to display) of an actual measurement data graph image for displaying actual measurement data of a molding operation cycle in a graph. The purpose is to make it easy and easy to set a good separator.

  In order to achieve the above-described object, the present invention includes a controller that drives and controls each part of the machine based on each set operating condition value and measurement information from each sensor, and the controller includes a predetermined molding operation. A series of molding operation steps are executed according to a program, and measured data of each operating condition during operation is captured and stored, and the controller displays images in various display modes on a display device based on an operator's instruction. In the measured data graph image display mode in which the measured data of the molding operation cycle is displayed as a graph in the molding machine, the start of the predetermined process is set as the start point of the graph display and the end of the predetermined process is set as the end point of the graph display. As a graph display start point is set from the start of the process set as the graph display start point Displaying the measured data to the end of the process as a line drawing graphs.

  In the present invention, the operator selects and sets the start of the predetermined process as the start point of the graph display and the end of the predetermined process as the end point of the graph display, so that the actual measurement data graph image that displays the actual measurement data of the molding operation cycle is displayed. Since the display target period (operating period of the machine to display) is set, the start point of the actual measurement data graph image always matches the start of the predetermined process, and the end point of the actual measurement data graph image always matches the end of the predetermined process Thus, the display target period of the measured data graph image (the operation period of the machine to be displayed) can be separated and excellent in visibility, and the display target period of the measured data graph image (the machine to display) The operation period) can be set by selecting the item, so it is easy and easy to create a graph with good separation. I machine can be realized. For this reason, for example, it is possible for the operator to easily see a graph display of measured data from the start of the mold opening process to the end of the mold clamping process (mold closing / clamping process). The display mode of the actual measurement data graph image for displaying the actual measurement data of the cycle as a graph can be selected in a form desired by the operator, and the usability is greatly improved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 relate to an inline screw type injection molding machine according to an embodiment of the present invention (hereinafter referred to as the present embodiment), and FIG. 1 is a simplified control system of the injection molding machine according to the embodiment. FIG.

  In FIG. 1, reference numeral 1 denotes a system controller that controls operation control and display control of the entire machine (injection molding machine). This system controller 1 includes hardware resources such as arithmetic functional elements and memories, and various types of resources that are held in advance. In cooperation with software resources such as application software, various processing such as various arithmetic processing, data writing / calling processing, display control processing, and command output processing are executed. The functions of the function blocks shown in the system controller 1 will be described later. Each function block is realized by the hardware resource and the software resource. Further, 2 is a sensor group composed of a large number of sensors provided in each part of the machine, and 3 is composed of a large number of driver circuits for driving and controlling a large number of drive sources arranged in each part of the machine. A driver group 4 is a key input device disposed on the front portion of the machine, and 5 is a display device (color liquid crystal display device with a touch panel) with a touch panel input portion 5a disposed on the front portion of the machine. The key input device 4 and the touch panel input unit 5a constitute a user input interface.

  The system controller 1 includes a plasticizing operation, a suck back operation, a mold opening / closing operation (a mold opening operation and a mold closing operation (a mold closing / clamping operation)), an ejecting operation (an eject ejecting operation and an eject returning operation), an injection operation (1 Control of the entire molding process such as the next injection operation and pressure holding operation), calculation / storage processing of measured data, calculation / determination processing such as non-defective / defective product determination processing, abnormality determination processing, or output of the display device 5 Various processes such as an image display control process are executed. In the system controller 1, 11 is a molding condition setting storage unit, 12 is a molding process control unit, 13 is an actual measurement value storage unit, and 14 is a display processing unit. Further, in the display processing unit 14, 15 is a data conversion processing unit, 16 is a graph scale generation unit, 17 is a fixed data storage unit for display, and 18 is a display image data generation unit.

  In the molding condition setting storage unit 11, various operating condition values input by the touch panel input unit 5 a or the key input device 4 or transferred from various storage media and input are stored in a rewritable form. Yes. The operating condition value includes, for example, the electric power value, the relationship between the screw position and screw rotation speed during the plasticizing process, the screw retraction speed, and the back pressure, the suck back control condition, and the holding pressure switching from the injection start point (position). Injection speed condition to point (position) and injection pressure condition, secondary injection pressure (holding pressure) condition from holding pressure switching time to holding pressure end time, mold closing (clamping) stroke and speed / pressure control conditions, Examples include mold clamping force, mold opening stroke and speed / pressure control conditions, eject control conditions, temperature control conditions for each part, control conditions for an automatic product take-out machine, and the like.

  The molding process control unit 12 is based on a previously created molding process control program and set condition values stored in the molding condition setting storage unit 11, and includes sensor groups 2 (position sensors, pressure sensors) disposed in each part of the machine. The corresponding drive source is driven via the driver group 3 (motor driver, heater driver, etc.) while referring to the measurement information from the sensor, rotation speed sensor, temperature sensor, etc.) and the timekeeping information from the built-in clock. Control and execute a series of molding steps.

  In the actual measurement value storage unit 13, all the actual measurement data of the monitor items set in advance during the continuous automatic operation are captured over a predetermined number of consecutive shots. Examples of monitor items to be captured include time monitoring items, position monitoring items, rotational speed monitoring items, speed monitoring items, pressure monitoring items, temperature monitoring items, power monitoring items, and the like.

  The display processing unit 14 displays a display image in a designated display mode based on a display image creation / control program created in advance in response to an instruction for calling a display image in a mode desired by the operator using the touch panel input unit 5a or the key input device 4. Create data.

  That is, when a call instruction for a predetermined display image by the operator arrives, the data conversion processing unit 15 of the display processing unit 14 displays the display from the information stored in the molding condition setting storage unit 11 or the actual measurement value storage unit 13 as necessary. Data for use in displaying the mode image is extracted and converted into a form corresponding to the display form of the designated display mode image. For example, if the specified display mode is a graphic image of a certain process or cycle, the extracted data is converted into image data that has been drawn, or the specified display mode is the operating state of a certain process. If it is a setting image, the extracted data is converted into numerical image data. When the designated display mode is a graphic image, the graph scale generation unit 16 generates a graph scale (graph scale) created in advance based on the contents of the data conversion processing unit 15 or the operator's scale instruction. Graph scale grid image data and scale numerical image data with a predetermined magnification are generated by the program.

  The generation processing data of the data conversion processing unit 15 and the graph scale generation unit 16 is taken into the display image data generation unit 18 and is enlarged / reduced according to the graph scale at a predetermined position on the graph scale grid image data at a predetermined magnification. The graphic image data captured by the conversion processing into the rate is overwritten and combined. Further, data to be used for displaying the display mode image from a large number of characters, symbols, graphic figures, ruled line data, and the like, which are fixed data for the mode image created and stored in advance in the display fixed data storage unit 17. Is extracted and taken into the display image data generation unit 18 and is also synthesized as image data for display.

  As a result, the display image data generation unit 18 arranges and synthesizes the specified graphic scale for the graphic display image, scale numbers, line drawing graph, mode display characters, unit symbols, item display characters, etc. Image data to which information or the like is added is created, and is held so as to be rewritable.

  When the designated display mode is not a graphic image, the image data for the designated display image is similarly displayed according to the contents of the data conversion processing unit 15 and the fixed display data storage unit 17. 18 is generated and held.

  The image data of the display image data generation unit 18 is transferred to a frame buffer (not shown) and temporarily stored, and the output of the frame buffer is sent to the display device 5 in response to a command from the display processing unit 14. Image data in a predetermined mode is displayed on the screen.

  FIG. 2 is displayed when the operator touches the “select 1 cycle graph item” button 21 in the display image in a state where image data of a predetermined mode is displayed on the display screen of the display device 5. The display image of the cycle graph item selection mode is shown. In the display image of this one-cycle graph item selection mode, a one-cycle actual graph image that is an actual data graph image that displays the actual measurement data of the molding operation cycle as a graph (this one-cycle actual graph image is exactly one molding as described later. Although the measured data for the cycle is not necessarily displayed in a graph, the operator can select and set the display mode of “displayed as one cycle measured graph image” for convenience. For example, although not shown in the display image of the 1-cycle graph item selection mode, a selection / setting field in which the operator can select and set the color and scale mode of individual data of the 1-cycle actual measurement graph image However, the illustration is omitted here.

  In the present embodiment, by using the display image of the 1-cycle graph item selection mode shown in FIG. 2, the operator can individually select and set the start point and end point of the 1-cycle actual graph image, that is, the 1-cycle actual graph An operator can select and set an image display target period (operating period of the machine to display), and the display image in the 1-cycle graph item selection mode in FIG. A start column and an end point display field 23 are provided. The start (start point) display / selection button 23a in the display field 23 is initially not displayed, but initially displays "automatic mode (plasticization start)" and is a one-cycle actual measurement graph image. It is shown that the start of the plasticizing process is selected as the starting point. In addition, although not shown in the end (end point) display / selection button 23b in the display field 23, initially, “automatic mode (injection end)” is displayed, and a one-cycle actual measurement graph image is displayed. It is shown that the end of the injection process (primary injection process and pressure holding process) is selected as the end point.

  When the operator touches the start (start point) display / selection button 23a, a start (start point) item selection window 24 that can select and set the start point of the one-cycle actual measurement graph image is called and displayed. The starting point of the measured graph image can be selected and set. The start (start point) item selection window 24 includes an "automatic mode" button 24a, a "every fixed time" button 24b, a "mold closing start" button 24c, a "mold opening start" button 24d, an "injection start" button 24e, A “pressure holding start” button 24f, a “plasticization start” button 24g, and an “ENTRY” button 24h are provided. If the “ENTRY” button 24h is touched after touching the “automatic mode” button 24a, the start of the plasticizing process is set as the starting point of the one-cycle actual measurement graph image, and at the same time, the injection process is used as the end point of the one-cycle actual measurement graph image. The end of is set. When the “every fixed time” button 24b is touched, a time input window (not shown) is displayed, and after inputting the desired time numerically in this time input window, touching the “ENTRY” button 24h makes one cycle actual measurement. The start of the plasticizing process is set as the start point of the graph image, and at the same time, the timing at which the numerical input time has elapsed from the start timing of the plasticizing process is set as the end point of the one-cycle actually measured graph image. After touching any one of the "mold closing start" button 24c, the "mold opening start" button 24d, the "injection start" button 24e, the "pressure holding start" button 24f, or the "plasticization start" button 24g, the "ENTRY" ”Button 24h is touched, the start of the mold closing process (mold closing / clamping process), the opening of the mold opening process, the start of the primary injection process, the start of the pressure holding process, or plasticity is performed as the start point of the one-cycle actual measurement graph image. Any one of the start of the conversion process (measurement process) is set.

  Further, when the operator touches the end (end point) display / select button 23b, an end (end point) item selection window 25 capable of selecting and setting the end point of the one-cycle actual measurement graph image is called and displayed. The end point of the one-cycle actual measurement graph image can be selected and set. The end (end point) item selection window 25 includes a “mold closing end” button 25a, an “mold opening end” button 25b, an “injection end” button 25c, an “suck back end” button 25d, and an “EJ backward end” button 25e. , “ENTRY” button 25f is provided. After touching any one of the “mold closing end” button 25a, the “mold opening end” button 25b, the “injection end” button 25c, the “suck back end” button 25d, or the “EJ backward end” button 25e, the “ENTRY” ”Button 25f is touched, the end of the mold closing process (mold closing / clamping process) or the end of the mold opening process or the end of the injection process (primary injection process and pressure holding process) is set as the end point of the one-cycle actual measurement graph image. Alternatively, either one of the end of the suck back process or the end of the eject return process is set.

  In FIG. 2, the start (start point) item selection window 24 selects / sets the start of the mold opening process as the start point of the one cycle actual measurement graph image, and the end (end point) item selection window 25 selects the one cycle actual measurement graph. The end of the mold closing process (mold closing / clamping process) is selected and set as the end point of the image, and “start of mold opening” is displayed and displayed on the start (start point) display / selection button 23a in the display field 23. The end (end point) display / selection button 23b in the column 23 indicates a state in which “end of mold closing” is displayed.

  It should be noted that the start of a process that can be selected and set as the start point of the one-cycle actual measurement graph image in the start (start point) item selection window 24 can include the start of a process other than the illustrated items, and the end. The end of the process that can be selected and set as the end point of the one-cycle actual measurement graph image in the (end point) item selection window 25 can include the end of the process other than the items shown in the figure. Depending on the process, the process items may be appropriately selected and selected.

  In the state where the start of the mold opening process is set as the start point of the one-cycle actual measurement graph image, and the end of the mold closing process (the mold closing / clamping process) is set as the end point of the one-cycle actual measurement graph image. When the operator touches the “1 cycle graph” button 22 in the middle, as the 1 cycle actual measurement graph image, the start of the mold opening process is set as the starting point, and the end of the mold closing process (the mold closing / clamping process) is set as the end point. A one-cycle actual measurement graph image as shown in FIG. 3 is displayed.

  In the line drawing graph display area 30 in the one-cycle actual measurement graph image shown in FIG. 3, the mold closing process (mold closing) is performed from the start of the mold opening process at a magnification such that substantially the entire horizontal axis direction and vertical axis direction are used.・ Graph display of actual measurement data until the end of the mold clamping process). In FIG. 3, 31 is a mold opening speed, 32 is a mold opening torque, 33 is a mold closing speed, 34 is a mold closing torque, 35 is a mold clamping speed, 36 is a mold clamping torque, and 37 is a movable mounted with a movable side mold. The die plate position, 38 is the eject ejection speed, 39 is the eject ejection torque, 40 is the eject return speed, and 41 is the eject return torque.

  By displaying the one-cycle actual measurement graph image as shown in FIG. 3 as described above, the operator can operate the machine during the required operation period of the machine by displaying the graph of the actual measurement data narrowed down only to the required operation period of the machine. It becomes possible to grasp the situation with high visibility, which greatly improves convenience for the operator.

  As described above, in this embodiment, the operator selects and sets the start of the predetermined process as the start point of the graph display and the end of the predetermined process as the end point of the graph display. Since the display target period (actual operation period of the machine to be displayed) of the actual measurement data graph display of the actual measurement data of the cycle is set, the start point of the one-cycle actual measurement graph image always coincides with the start of the predetermined process. The end point of the actual measurement graph image always coincides with the end of the predetermined process, and the display target period of the one-cycle actual measurement graph image (the operation period of the machine to be displayed) is excellent in visibility with good separation. It is also possible to easily set the display target period of the measured data graph image (the operation period of the machine to be displayed) by the item selection operation. It allows it easy and simple to delimiter good graphical user Furendoryi machine can be realized. For this reason, for example, the operator can easily see the graph display of the measured data from the start of the mold opening process to the end of the mold closing process (mold closing / clamping process), that is, the molding operation The display mode of the actual measurement data graph image for displaying the actual measurement data of the cycle as a graph can be selected in a form desired by the operator, and the usability is greatly improved.

It is the block diagram which simplified the control system in the in-line screw type injection molding machine which concerns on one Embodiment of this invention. In an in-line screw type injection molding machine concerning one embodiment of the present invention, it is an explanatory view showing an example of a display picture of 1 cycle graph item selection mode displayed on a display. In an in-line screw type injection molding machine concerning one embodiment of the present invention, it is an explanatory view showing an example of 1 cycle actual measurement graph image displayed on a display.

Explanation of symbols

1 system controller 2 sensor group 3 driver group 4 key input device 5 display device (color liquid crystal display device with touch panel)
5a Touch panel input unit 11 Molding condition setting storage unit 12 Molding process control unit 13 Actual measurement value storage unit 14 Display processing unit 15 Data conversion processing unit 16 Graph scale generation unit 17 Fixed data storage unit for display 18 Display image data generation unit

Claims (1)

A controller for driving and controlling each part of the machine based on each set operating condition value and measurement information from each sensor, and the controller executes a series of molding operation steps in accordance with a predetermined molding operation program. In the molding machine that captures and stores the actual measurement data of each operating condition during operation, and the controller displays an image of various display modes on the display device based on an instruction of the operator,
In the display mode of the measured data graph image that displays the measured data of the molding operation cycle as a graph, the graph is selected and set with the start of the predetermined process as the start point of the graph display and the end of the predetermined process as the end point of the graph display. A molding machine that displays measured data from the start of a process set as a display start point to the end of a process set as an end point of a graph display as a line drawing graph.

Images