JP4505044B2 - Drawing setting method of molding condition waveform of injection molding machine - Google Patents

Description

  The present invention relates to a method for inputting molding conditions of an injection molding machine, and relates to a molding condition waveform drawing setting method for drawing and setting molding condition waveforms from a coordinate input device, and molding capable of editing the generated molding condition waveforms. The present invention relates to a conditional waveform drawing setting method.

  Conventionally, when setting molding conditions of an injection molding machine, a method of drawing and setting molding condition waveforms as a function of continuous position or time by using a coordinate input device such as a light pen or a touch panel is disclosed in Japanese Patent Application Laid-Open No. HEI 11-31583. No. 176). In the coordinate input device, in the case of a light pen, the coordinate point is read by bringing the tip of the pen including a light receiving device into contact with the screen of the display device of the injection molding machine, and in the case of a touch panel, the display of the injection molding machine is displayed. A coordinate point is read by touching the panel mounted on the screen of the apparatus with an operator's finger or the like. In the display device of an injection molding machine, the horizontal axis displays the plunger position or time, and the vertical axis displays the injection speed or holding pressure as two-dimensional coordinates, and the operator traces the two-dimensional coordinates with a light pen or finger. The input coordinate point is read, and the injection speed pattern or pressure holding pattern of the molding condition waveform is set as a function of continuous position or time. At this time, these molding condition waveforms are converted from a point sequence as an input injection speed or pressure pattern into a smooth function.

In addition, in the injection speed setting or holding pressure setting that are controlled in multiple stages, the speed setting line, pressure setting line, stroke segment position, and time segment position are appropriately translated with respect to the stepwise molding condition waveform that is input in advance as numerical values. A method for editing (that is, correcting) the molding condition waveform has been proposed in Patent Document 2 (Japanese Patent Publication No. 5-72249) and Patent Document 3 (Japanese Patent No. 3195842). Also, for the staircase-shaped forming condition waveform, specify the start point and end point on the graph, set the correction section, redefine the number of control steps corresponding to the correction section, and the start point and end point Patent Document 4 (Japanese Patent No. 3162549) proposes a method of editing the injection speed in the correction section by designating the shape of the line segment connecting the two.
Japanese Patent Publication No. 2-176 Japanese Patent Publication No. 5-72249 Japanese Patent No. 3195842 Japanese Patent No. 3162549

  However, the applicant of the present application still considers the following problems. That is, when the coordinate input device mounted on the display device sequentially reads the coordinate points drawn and input by the operator, when storing the data of all the coordinate points, the storage capacity becomes large. There is. In addition, when the coordinates of points are read at predetermined intervals with respect to the position and time on the horizontal axis, if the interval is large, the capacity for storing the coordinates of the points is reduced, while the predetermined interval on the horizontal axis is set. On the other hand, for example, when the drawing setting is performed by greatly changing the injection speed on the vertical axis, there is a problem that the fluctuation cannot be read well.

  Therefore, in the present invention, the molding condition waveform is set as a polygonal line following the drawing input as compared with the conventional molding condition waveform drawn by the operator on the display device equipped with the coordinate input device, and the set waveform has been set. It is an object of the present invention to propose a drawing setting method of a shaping condition waveform, which can easily edit the shaping condition waveform from the display device by an operator's drawing input.

  In order to solve the above problems, the molding condition waveform drawing setting method of the present invention is a method of drawing a molding condition waveform input from a coordinate input device on a display device on the display device while setting a set point and a polygonal line therebetween. In the setting method, when the drawing mode of the shaping condition waveform is selected, the step of sequentially reading and storing the coordinate points continuously drawn and inputted by the operator and storing them, and the latest coordinate points are already set. Sequentially calculating a straight line distance from the previous set point of the data table; storing the coordinate point as the next set point in the data table when the latest straight line distance is a predetermined distance; and The step of displaying one setting line that connects these adjacent setting points with a straight line is repeated until the operator's input operation is completed, and the molding condition waveform is displayed. It is characterized in that setting as a line consisting of the setting line number.

  Further, the molding condition waveform drawing setting method of the present invention is such that when the molding condition waveform editing mode is selected for the molding condition waveform generated by the drawing setting method, the operator has already set a set point or setting. A step of moving the line or adding a new set point or set line and storing the new set point or set line while updating, and storing the specified set point or set line adjacent to the set point or the set line. A step of generating a new setting line regardless of the predetermined distance between the set points that have been set is executed, and the set molding condition waveform is edited. .

  In addition, when the setting point addition mode is selected as the editing mode, the shaping condition waveform drawing setting method of the present invention temporarily stores the coordinate point drawn and input by the operator so as to specify the point as a new coordinate point. Comparing the new coordinate point with the abscissa value of the set point in the data table to identify which two adjacent set points are between the two set points; Editing the data table so as to store the new coordinate point as a new set point, and forming a polygonal line by displaying a set line connecting the set point adjacent to the new set point with a straight line The step of re-displaying the conditional waveform is executed to edit the set molding condition waveform.

  Further, the shaping condition waveform drawing setting method of the present invention includes a step of reading and temporarily storing coordinate points input by an operator so as to specify a point when the set point movement mode is selected as the editing mode. And the step of identifying the set point selected from among the set points stored in the data table is the coordinate point temporarily stored, and then the operator continues to select the point from the input. Editing the data table so as to overwrite and update the coordinates of the points that are read sequentially as the coordinates of the selected set points in response to drawing input so as to move, and the selected set points and settings Repeating the step of displaying the setting line connecting the adjacent adjacent set points with a straight line and redisplaying the forming condition waveform of the broken line until the operator's input operation is completed. The data table so as to delete the set point between the coordinate point before and after the set point moved with respect to the abscissa value after the input operation is completed, from the data table. And a step of displaying a setting line that connects the set point that has been moved and the set point that is adjacent to the set line by a straight line based on the edited data table, and redisplaying the waveform of the polygonal line forming condition. Then, the set molding condition waveform is edited.

  In addition, when the setting line addition mode is selected as the editing mode, the shaping condition waveform drawing setting method of the present invention reads the coordinate point drawn by the operator so as to specify a point, and reads a new setting line. The step of temporarily storing the coordinates of the start point, and the coordinates of the points read and input sequentially so that the operator continuously moves the points from the input are overwritten and updated as the coordinates of the end points of the new setting line. Repeating until the operator finishes the input operation while temporarily storing; editing the data table to delete the set point between the start point and the end point with respect to the abscissa value from the data table; , Compare the start point with the abscissa value of the set point in the data table to determine which two set points are adjacent to each other The step of editing the data table to store the start point as a new set point between the two set points, and comparing the end point with the abscissa value of the set point of the data table. Examining and identifying which two adjacent set points are between; and editing the data table to store the end point as a new set point between the two set points; Based on the edited data table, a setting line that connects a straight line between two new set points including the start point and the end point and a set point that is adjacent on the outside is displayed as a broken line. The step of redisplaying the molding condition waveform is executed, and the set molding condition waveform is edited.

  In addition, when the setting line movement mode is selected as the editing mode, the shaping condition waveform drawing setting method of the present invention reads a coordinate point drawn by an operator so as to specify a point, and uses it as a specified point coordinate. The operator continues from the input after performing the step of temporarily storing and the step of comparing the specified point with the set point of the data table to identify which two adjacent set points are between And then temporarily storing the coordinates of the points that are read sequentially as the coordinates of the movement definition points in accordance with the drawing input so as to move the points, and the specified points and the movement definition points The step of calculating the direction and distance that the movement definition point has moved relative to the designated point with respect to the vertical axis from the ordinate value, and the two setting points that sandwich the designated point are And editing the database so that the ordinate values of the set points are corrected and stored so as to move by the distance, and two set points sandwiching the designated point based on the edited data table. Repeating a step of displaying a setting line that connects between a set point and a set point adjacent to the outside by a straight line and re-displaying the forming condition waveform of the broken line until the operator's input operation is completed. Is executed to edit the set molding condition waveform.

  Also, the molding condition waveform drawing setting method according to the present invention is such that, in the editing mode, an operator moves a plurality of setting points or a plurality of setting lines or adds a plurality of continuous setting lines to set a molding condition waveform that has been set. It is characterized by editing.

  According to the molding condition waveform drawing setting method of the present invention, when an operator draws continuously from a coordinate input device on a display device and sequentially inputs coordinate points, The straight line distance is calculated, and when the distance is a predetermined distance, the coordinate point is stored as the next set point. Therefore, in this method, even if the shaping condition waveform to be drawn and input changes greatly in the speed and pressure on the vertical axis with respect to the position and time on the horizontal axis, it is possible to set the forming condition waveform of the broken line following the fluctuation.

  Further, in the molding condition waveform drawing setting method of the present invention, when the set molding condition waveform editing mode is selected, the operator displays the preset molding condition waveform displayed on the display device on the display device. The molding condition waveform can be easily edited by drawing and inputting a new set point or set line from the coordinate input device or moving the set set point or set line. In the edit mode, the set point and the set line are edited at an arbitrary distance regardless of the predetermined distance between the adjacent set points. It can be corrected to a waveform that is fine or has a large change in velocity and pressure on the vertical axis with respect to position and time on the horizontal axis.

  Also, in the shaping condition waveform drawing setting method of the present invention, when one set point addition mode of the edit mode is selected, the operator can arbitrarily draw and input a new set point on the coordinate input device with, for example, a finger. For example, it is possible to automatically connect adjacent set points with a straight line. In the set point addition mode, the set point is added at an arbitrary distance regardless of the predetermined distance between adjacent set points. It can be corrected to a waveform that is fine or has a large change in velocity and pressure on the vertical axis with respect to position and time on the horizontal axis.

  Further, in the molding condition waveform drawing setting method according to the present invention, when one set point movement mode in the edit mode is selected, the operator touches a set set point on the coordinate input device with, for example, a finger. If you specify and move the finger to the coordinates you want to move, you can move the specified set point. In the set point movement mode, the set point is moved at an arbitrary distance regardless of the predetermined distance between adjacent set points. It can be corrected to a waveform that is fine or has a large change in velocity and pressure on the vertical axis with respect to position and time on the horizontal axis.

  Further, in the shaping condition waveform drawing setting method of the present invention, when one setting line addition mode in the editing mode is selected, the operator can arbitrarily draw and input a new setting line on the coordinate input device with, for example, a finger. For example, the start point and the end point of the setting line are connected, and two setting points adjacent to the start point or the end point are also connected. On the other hand, the set point located inside the added set line is deleted. In the setting line addition mode, a setting line is drawn and added at an arbitrary distance regardless of the predetermined distance between adjacent setting points, so a part of the set molding condition waveform is set between the setting points. Can be corrected to a waveform with a small distance or a large change in speed and pressure on the vertical axis with respect to position and time on the horizontal axis.

  Further, in the drawing setting method of the molding condition waveform of the present invention, when one setting line movement mode of the editing mode is selected, the operator touches the setting line to be moved on the coordinate input device with, for example, a finger to specify If the finger is moved up and down in the vertical axis direction as it is, the specified setting line can be translated while the both ends are connected. In the setting line movement mode, the setting line is moved at an arbitrary distance regardless of the predetermined distance between adjacent setting points. It can be corrected to a waveform that is fine or has a large change in velocity and pressure on the vertical axis with respect to position and time on the horizontal axis.

  In the molding condition waveform drawing setting method of the present invention, the operator specifies a plurality of set points or a plurality of set lines in the set molding condition waveform editing mode, and these set points are simultaneously and in the same direction and in the same direction. The distance can be moved. In the edit mode, a plurality of continuous setting lines can be newly added by drawing and inputting an arbitrary section of the shaping condition waveform that has been set. In addition, since a plurality of set points and set lines to be moved or a plurality of continuous set lines to be added are linearly moved or added to other set points that have been set regardless of the predetermined distance, A part of the set molding condition waveform can be corrected to a waveform in which the distance between the set points is fine or the change in speed and pressure on the vertical axis is large with respect to the position and time on the horizontal axis.

FIG. 1 is an injection setting screen for the drawing setting method of the molding condition waveform of the present invention. FIG. 2 is a flowchart for selecting each processing in the drawing mode or the edit mode in the drawing setting method of the molding condition waveform of the present invention on the injection setting screen. FIG. 3 is a flowchart of a drawing mode of the drawing condition waveform drawing setting method of the present invention. FIG. 4 is a flowchart of the set point addition mode of the drawing condition waveform drawing setting method of the present invention. FIG. 5 is a flowchart for adding a new set point to the data table storing the molding condition waveform set by the molding condition waveform drawing setting method of the present invention. FIG. 6 is a flowchart of the set point movement mode of the drawing setting method of the shaping condition waveform of the present invention. FIG. 7 is a continuation of the flowchart of the set point movement mode of the drawing setting method of the shaping condition waveform of the present invention. FIG. 8 is a flowchart of the setting line addition mode of the drawing setting method of the shaping condition waveform of the present invention. FIG. 9 is a flowchart of the setting line movement mode of the drawing setting method of the shaping condition waveform of the present invention. FIG. 10 is a diagram conceptually showing an initial state of a data table for storing set points in the molding condition waveform drawing setting method of the present invention. FIG. 11 is a diagram showing an initial state of a screen on which a drawing is input by the shaping condition waveform drawing setting method of the present invention. FIG. 12 is a diagram conceptually showing an embodiment of the storage state of the data table after drawing setting in the drawing mode of the drawing setting method of the shaping condition waveform of the present invention. FIG. 13 is a diagram showing an example of the shaping condition waveform after drawing setting in the drawing mode of the shaping condition waveform drawing setting method of the present invention. FIG. 14 is a diagram conceptually illustrating an example of the storage state of the data table after a set point is newly added in the set point addition mode of the drawing setting method of the shaping condition waveform of the present invention. FIG. 15 is a diagram showing an example of the shaping condition waveform after a new set point is added in the set point addition mode of the drawing condition waveform drawing setting method of the present invention. FIG. 16 is a diagram conceptually showing an embodiment of the storage state of the data table after the existing set point is moved in the set point movement mode of the shaping condition waveform drawing setting method of the present invention. FIG. 17 is a diagram showing an example of the shaping condition waveform after the existing set point is moved in the set point movement mode of the shaping condition waveform drawing setting method of the present invention. FIG. 18 is a diagram conceptually showing an embodiment of the storage state of the data table after the existing set point is moved in the set point movement mode of the shaping condition waveform drawing setting method of the present invention. FIG. 19 is a diagram showing an example of the shaping condition waveform after the existing set point is moved in the set point movement mode of the drawing condition waveform drawing setting method of the present invention. FIG. 20 is a diagram conceptually illustrating an example of the storage state of the data table before a setting line is newly added in the setting line addition mode of the drawing condition waveform drawing setting method of the present invention. FIG. 21 is a diagram showing an example of a state before a setting line is newly added in the setting line addition mode of the shaping condition waveform drawing setting method of the present invention. FIG. 22 is a diagram conceptually illustrating an example of the storage state of the data table after a setting line is newly added in the setting line addition mode of the shaping condition waveform drawing setting method of the present invention. FIG. 23 is a diagram showing an example of a shaping condition waveform after a setting line is newly added in the setting line addition mode of the drawing setting method of the shaping condition waveform of the present invention. FIG. 24 is a diagram conceptually illustrating an example of the storage state of the data table after the existing setting line is moved in the setting line movement mode of the drawing setting method of the shaping condition waveform of the present invention. FIG. 25 is a diagram showing an example of the shaping condition waveform after the existing setting line is moved in the setting line movement mode of the drawing condition waveform drawing setting method of the present invention.

Explanation of symbols

1 Injection setting button 2 Injection setting screen 3 Input field 4 Two-dimensional coordinates 5 Injection velocity waveform drawing button 6 Set point addition button 7 Set point move button 8 Set line add button 9 Set line move button

  In the molding condition waveform drawing setting method of the present invention, the molten resin is supplied into the injection cylinder in the metering step, and the injection plunger or the injection screw in the injection cylinder is advanced by the driving device in the injection step, and the molten resin is molded into the mold. It is applied to an injection molding machine that injects and fills the inside of the inside at a predetermined speed and further pressurizes the plunger or the screw with a driving device in the pressure-holding step to obtain a molded product.

  By the way, in the injection process, the position of the plunger is measured by, for example, a position sensor and detected as a plunger position detection value, and the injection speed of the plunger is detected as a speed detection value by its differential value. And these detected values are sent to the control apparatus which controls a drive device. The control device includes a storage unit, and compares an injection speed molding condition waveform, which will be described later, stored in the storage unit with a detected value of the position and speed of the plunger. The drive device is controlled accordingly.

  Similarly, in the pressure holding step, the driving device is controlled in accordance with the holding pressure molding condition waveform while comparing the holding pressure molding condition waveform with the detected pressure value and holding time.

  Connected to the control device are a display device for displaying various information of the molding machine, a coordinate input device for inputting a molding condition waveform such as an injection speed, and a keyboard for inputting other molding conditions. In this embodiment, a touch panel is used as a coordinate input device, and the operator touches the touch panel with a finger or the like while the touch panel is mounted on the screen of the display device and two-dimensional coordinates are displayed on the screen of the display device. The description will proceed in the form of inputting coordinate points by touching. In addition, a coordinate point may be input using the mouse while the operator looks at the mouse cursor displayed on the display device. Alternatively, a coordinate point may be input by using a light pen so that the operator touches the tip of the pen including the light receiving device on the screen of the display device.

  Therefore, when inputting the molding condition waveform of the injection speed, the horizontal axis (x-axis) represents the plunger position, and the vertical axis (y-axis) represents the plunger speed. When setting the molding condition waveform for holding pressure, the horizontal axis represents time and the vertical axis represents holding pressure.

  For example, when inputting a molding condition waveform for injection speed control, the touch panel sequentially touches the two-dimensional coordinates with a finger or the like (that is, draws input), thereby sequentially reading coordinate points. The coordinate point is stored in the storage unit of the control device as a molding condition waveform of the injection speed.

  From here, the drawing setting method of the shaping condition waveform peculiar to the present invention will be explained. In addition, as an Example, it demonstrates taking the case of the shaping condition waveform of injection speed control, The description is abbreviate | omitted about the pressure holding control etc. which can apply this invention.

  Hereinafter, as an example, a case where a molding condition waveform of injection speed is set will be described. In the first embodiment, a drawing condition waveform drawing setting method will be described. In the second to fifth embodiments, a forming condition waveform drawing setting method including the editing mode of the forming condition waveform generated in the first embodiment will be described.

  First, an injection setting screen 2 as shown in FIG. 1 is prepared on the display device. This screen is displayed when the injection setting button 1 is pressed. On the injection setting screen 2, a setting item field for inputting an injection speed and a holding pressure molding condition is arranged. Here, the setting item of the injection speed includes an input field 3 for inputting the measurement completion position, the VP switching position, the maximum speed, and the upper limit pressure of the injection numerically. This input field 3 is input from a keyboard or the like.

  The measurement completion position is a position where the plunger moves backward when molten resin necessary for one molding is supplied into the injection cylinder, and the plunger starts moving forward. The VP switching position is a position where the speed control is switched to the pressure control, and is a position where the molten resin is switched from injection filling to holding pressure. The maximum speed is the upper limit value of the injection speed.

  The injection setting screen 2 displays two-dimensional coordinates 4 for inputting a molding condition waveform of the injection speed. In the two-dimensional coordinates 4, the horizontal axis (x axis) represents the plunger position S, and the vertical axis (y axis) represents the injection speed V. The minimum value of the horizontal axis of the two-dimensional coordinate 4 is a VP switching position, which is a substantially zero position where the plunger is slightly retracted in the positive direction from its forward limit position (zero). The maximum value on the horizontal axis of the two-dimensional coordinate 4 is a measurement completion position, which is a position where the plunger is retracted in the plus direction from the forward limit position (zero). The minimum value of the vertical axis of the two-dimensional coordinate is zero. The maximum value on the vertical axis of the two-dimensional coordinates is the maximum speed and a value in the plus direction. In addition, the screen 2 includes an injection velocity waveform drawing button 5, a set point addition button 6, a set point move button 7, a set line add button 8, and a set line move button 9.

  Next, an outline of the control flow will be described. As shown in the flowchart of FIG. 2, when the injection speed waveform drawing button 5 is pressed (step ST1), the process proceeds to injection speed waveform drawing processing (molding condition waveform drawing mode) (step ST2). The following processing is prepared as an editing mode for the molding condition waveform generated by the injection velocity waveform drawing processing. When the set point addition button 6 is pressed (step ST3), the process proceeds to a set point addition process (set point addition mode) (step ST4). When the set point moving button 7 is pressed (step ST5), the process proceeds to a set point moving process (set point moving mode) (step ST6). When the setting line addition button 8 is pressed (step ST7), the process proceeds to setting line addition processing (setting line addition mode) (step ST8). When the setting line movement button 9 is pressed (step ST9), the process proceeds to a setting line movement process (setting line movement mode) (step ST10). Step ST11 is a process for setting a numerical value in the input field 3 with a keyboard or the like.

Now, a drawing setting method of the molding condition waveform for injection speed control according to the first embodiment will be described. First, when the injection speed waveform drawing button 5 is pressed, the process proceeds to an injection speed waveform drawing processing mode of injection speed control. In this mode, as shown in the flowchart of FIG. 3, first, the data table is initialized (step ST13). As shown in FIGS. 10 and 11, the data table is composed of an address i, a plunger position S on the horizontal axis, and an injection speed V on the vertical axis. Then, since the plunger starts to advance from the measurement completion position, the first (first) set point (S ₁ , V ₁ ) is set to S ₁ = measurement completion position, V ₁ = at the data table address i = 1. 0 is set as an initial value first (step ST15).

Next, the control device waits until the coordinate input device is touched by the operator (step ST16). When the coordinate input device is touched, the touched coordinate point (S _c , V _c ) is read and the control device is read. Is temporarily stored in the storage unit (step ST17). As shown in FIGS. 12 and 13, since the coordinate point (S _c , V _c ) is the second set point, the address i is advanced by one and S ₂ = S is set to the address i = 2 in the data table. _c , V ₂ = V _c is stored (step ST19). Then, a straight line connecting the set point (S ₁ , V ₁ ) and the set point (S ₂ , V ₂ ) is displayed (step ST20). The second set point is set at an arbitrary distance regardless of the linear distance between the first set point and the second set point, but is the same as the setting after the third set point to be described below. Alternatively, the linear distance between the first set point and the second set point may be set to be a predetermined distance.

Then, while the touch continues on the coordinate input device, the control device sequentially reads the coordinate point (S _c , V _c ) at the current position being touched, and the operator draws and inputs it. Temporarily store while overwriting and updating as the existing position. S _c ≦ S _{i in} step ST23 is for prohibiting the setting for retreating in the waveform drawing setting because the plunger does not retreat during injection. Then, a straight line distance L between the coordinate point (S _c , V _c ) and the set point (S ₂ , V ₂ ) at the address i = 2 stored in the previous data table is calculated, and the distance L This is continued until a predetermined value r (predetermined distance) exceeds a preset value (step ST21 to step ST26). Eventually, when the linear distance L between the coordinate point (S _c , V _c ) and the set point (S ₂ , V ₂ ) becomes L ≧ r, the address i is advanced by one and the address i = 3 of the data table is set. S ₃ = S _c and V ₃ = V _c are stored (step ST28). The set point (S ₁ , V ₁ ) and the set point (S ₂ , V ₂ ) and the set point (S ₂ , V ₂ ) and the set point (S ₃ , V ₃ ) are connected with straight lines. Is displayed again (step 29). While the touch is continued, this is repeated, and the set points are sequentially stored in the data table as the injection condition molding condition waveform.

Eventually, for example, after storing the set point (S ₆ , V ₆ ) in the data table, the control device proceeds to the next step ST30 when determining that the coordinate input device is not touched by the operator. When the confirmation key on the keyboard is pressed (step ST30), the control device advances the address i by one, and stores S ₇ = VP switching position and V ₇ = V ₆ at address i = 7 in the data table. (Step ST32). Further, the number N of set points stored in the data table is stored in the storage unit (step ST33). Finally, the set point (S ₆ , V ₆ ) and the set point (S ₇ , V ₇ ) are connected by a straight line to display a broken line (step ST 34), and the process ends.

  In this way, in the molding condition waveform drawing setting method of the present invention, every time the input coordinate point is separated by a certain distance, the coordinate point is stored. Therefore, the molding condition waveform close to the waveform drawn by the operator is represented by a broken line. Can be set. In addition, since the control device stores only the necessary points in the data table among the coordinate points of the points sequentially read by the coordinate input device, the storage capacity of the molding condition waveform data can be reduced.

  In the drawing mode of the present invention, even if the operator stops touching once during waveform drawing, the waveform drawing can be continued by touching again until the enter key is pressed. At that time, the first set point when the waveform drawing is resumed can be provided regardless of the linear distance from the last stored set point when the operator stopped touching the previous time.

  In the second embodiment, an edit mode for adding a set point to a set molding condition waveform will be described. First, when the set point addition button 6 on the injection setting screen 2 is pressed, the mode shifts to a mode for adding a set point to the injection speed molding condition waveform.

As shown in the flowchart of FIG. 4, the control device waits until the coordinate input device is touched by the operator (step ST35). When the coordinate input device is touched, the touched coordinate point (S _c , V _c ) is read. Is temporarily stored (step ST36). Then, in order to add a new set point to the data table, the process proceeds to a data table set point addition process as shown in the flowchart of FIG. 5 (step ST37).

In order to add the coordinate point (S _c , V _c ) as a new set point, first, the horizontal coordinate position S ₁ and position S ₂ are read, and the position S between S ₂ <S _c <S ₁ is read. Check if _c exists. The following examines whether there is a position S _c between the positions S ₂ and the position S _3. In this manner, while the address i is advanced one by one, it is checked whether S _c is in the range of S _{i + 1} <S _c <S _i (step ST39 to step ST44). For example, in the case of FIGS. 12 to 15, when the touched coordinate point (S _c , V _c ) is i = 4, S _c is between S ₅ <S _c <S _4. Identified.

The data table shifts data lower than address i = 4 to one lower position (step ST45), and then stores S ₅ = S _c and V ₅ = V _c at address i + 1 = 5 (step ST46). ). Also, the number of set points in the data table stored in the storage unit is updated to N = N + 1 (step ST47). Then, the set point (S _c , V _c ) and the set point (S ₄ , V ₄ ), the set point (S _c , V _c ) and the set point (S ₅ , V ₅ ) are connected with a straight line, and the broken line is re-established. It is displayed (step ST48).

  In this set point addition mode, there is no provision for the linear distance between adjacent set points (predetermined distance in the drawing mode), so a part of the set molding condition waveform is the distance between the set points. It is possible to correct the waveform so that the change in speed or pressure on the vertical axis is large with respect to the position or time on the horizontal axis.

  In the third embodiment, an edit mode for moving a set point of a set shaping condition waveform will be described. When the set point movement button 7 on the injection setting screen 2 is pressed, the mode shifts to a mode for moving the set point of the injection condition molding condition waveform.

As shown in the flowchart of FIG. 6, first, the control device waits until the coordinate input device is touched by the operator (step ST49), and when the coordinate input device is touched, the touched coordinate point (S _c , V The coordinates of _c ) are read and temporarily stored (step ST50). Then, in steps ST51 to S58, it is checked which set point in the data table is selected by the touched coordinate point (S _c , V _c ). Here, in order from the address i = 2 to N, the position _Sc is in the range of S _i −α <S _c <S _i + α, and the speed V _c is V _i −β <V _c. <V _i + β is checked if it is within the range. N is the number of set points of the current molding condition waveform, and is stored in the storage unit in an updatable manner. The set point (S ₁ , V ₁ ) at address i = 1 is excluded because it is the position where the plunger starts moving forward and does not move. [alpha] and [beta] are intended to make the selection range easier to select by touching the set point with a finger or the like, and a predetermined value may be set as required.

  If it is determined that a set point has been selected, the process proceeds to step ST59. If you touch a different point from the set point, return to step ST49 and start over.

This will be described with reference to FIGS. 16 and 17, for example. Even after it is determined that the set point (S ₄ , V ₄ ) has been selected, if the touch is still continued, the control device causes the coordinate point (S) where the operator sequentially touches the coordinate input device. _c , V _c ) are read and temporarily stored (step ST60). This is because the operator traces on the touch panel in the direction to move while touching the selected set point.

At this time, in step ST63 from step ST61, the flag F, with respect to the position _{S 4} before movement, _{S 4} after the movement, since the movement in the forward direction of the plunger, the flag F = 0 is substituted The On the other hand, when the plunger moves in the backward direction, the flag F = 1 is substituted for the flag F.

If the address of the selected set point is not N (step ST64), for example, S ₄ = S _c and V ₄ = V _c at address i = 4, which is the selected set point in the data table, are set. The data is stored while being overwritten and updated, and the set point (S ₄ , V ₄ ) and the set point (S ₃ , V ₃ ) moved, the set point (S ₄ , V ₄ ) and the set point (S ₅ , V ₃ ) are moved. ₅ ) are connected by a straight line to display a broken line (step ST67). In step ST64, for example, only V ₇ = V _c is stored while being overwritten and updated so that the set point (S ₇ , V ₇ ) at the VP switching position in the figure moves only in the vertical axis direction. It is.

Next, when it is detected that the operator has not touched the coordinate input device, the control device performs processing as shown in the flowchart of FIG. The process of FIG. 7 is for deleting the set point at a position where the plunger moves backward when the set point is moved from the data table. For example, in the case of FIGS. 16 and 17, since the flag F = 0, the process proceeds to step ST69. Then, it is checked whether there is a set point in the data table that causes the plunger to retract (steps ST69 to 71). In the case of FIG. 16 and FIG. 17, since there is no such set point, the set point (S ₄ , V ₄ ) moved, the set point (S ₅ , V ₅ ), and moved (S ₄ , V ₄ ) The set point (S ₃ , V ₃ ) is connected with a straight line to display the broken line again (step ST75), and the process is terminated.

For example, in the case of FIGS. 18 and 19, moved setpoint _{(S 4, V} 4) are, will exceed the set point _{(S 5, V} 5), the plunger is the set point _{(S 5, V} 5) It will be set to reverse. In this case, it is determined in step ST71 that S ₄ > S ₅ is not satisfied, and the set point (S ₅ , V ₅ ) is deleted (step ST72). Then, the data table shifts the lower data one higher so as to pack the deleted addresses (step ST73). Further, the number N of set points is decreased by 1 (step ST74). Finally, the moved set point (S ₄ , V ₄ ) and the set point (S ₃ , V ₃ ), and the moved set point (S ₄ , V ₄ ) and set point (S ₆ , V ₆ ) in a straight line. The broken lines are connected and displayed again (step ST75), and the process ends.

  Further, when the set point moves in the opposite direction to the example of FIGS. 18 and 19, the flag F = 1, which is determined by step ST78, and the set point for retracting the plunger is similarly deleted. (Step ST79 to Step 80).

In this set point movement mode, there is no provision for the linear distance between adjacent set points (predetermined distance in the drawing mode), so a part of the set molding condition waveform is the distance between the set points. It is possible to correct the waveform so that the change in speed or pressure on the vertical axis is large with respect to the position or time on the horizontal axis.
In this set point movement mode, the operator may specify a plurality of set points and move the set points simultaneously in the same direction and at the same distance. When a plurality of specified setting points are adjacent to each other, it is possible to move a setting line that connects the setting points with a straight line.

  In the fourth embodiment, an editing mode for adding a setting line of a set molding condition waveform will be described. When the setting line addition button 8 on the injection setting screen 2 is pressed, the mode shifts to a mode for adding a molding condition waveform setting line for injection speed control.

As shown in the flowchart of FIG. 8, the control device first waits until the coordinate input device is touched by the operator (step ST83). When the coordinate input device is touched, the touched coordinate point is read and the start point ( S _s , V _s ) is temporarily stored (step ST84). If the touch is continued, the touched coordinate point is sequentially read and overwritten as the end point (S _e , V _e ) and updated and temporarily stored (step ST86). For example, as shown in FIG. 20 and FIG. 21, by specifying the start point (S _s , V _s ) of the setting line newly added by the first touch by the operator's input operation, When the touch is stopped at the end point (S _e , V _e ) of the setting line (step ST85), by specifying the point, the two setting points constituting the setting line are input.

In step ST87, among the starting and ending points, and the larger the to _{S max,} the smaller the _{S min.} In step ST90 to step ST98, the set points in the data table that are in the range of S _min <S _i <S _max are deleted. For example, in the case of FIGS. 22 and _23, the set point in the range of _{S s <S i <S e} (S 3, V 3), setpoint _{(S 4, V 4),} set point _(S 5, _{V 5} ) Therefore, these set points are deleted from the data table.

After that, the start point (S _s , V _s ) and the end point (S _e , V _e ) are respectively added to the data table by the data table set point addition process (FIG. 5) described above (steps ST99 to S102). . Then, the start point (S _s , V _s ) and the end point (S _e , V _e ), the start point (S _s , V _s ) and the set point (S ₆ , V ₆ ), the end point (S _e , V _e ) and the set point (S ₂ , V ₂ ) are connected with a straight line, the broken line is displayed again (step ST103), and the process is terminated.

  In this setting line addition mode, there is no provision for the linear distance between adjacent setting points (predetermined distance in drawing mode), so a part of the set molding condition waveform is the distance between the setting points. It is possible to correct the waveform so that the change in speed or pressure on the vertical axis is large with respect to the position or time on the horizontal axis. In this setting line addition mode, a new broken line, which is a plurality of continuous new setting lines drawn and input by the operator, may be added to the set shaping condition waveform.

  In the fifth embodiment, an editing mode for moving a setting line of a set molding condition waveform will be described. When the setting line movement button 9 on the injection setting screen 2 is pressed, the mode shifts to a mode for moving the setting line of the injection condition molding condition waveform.

As shown in the flowchart of FIG. 9, first, the control device stands by until the coordinate input device is touched (step ST104). When the coordinate input device is touched, the control device reads the touched coordinate point and temporarily stores it as the designated point (S _a , V _a ) of the setting line (step 105). Then, the touched designated point (S _a , V _a ) is examined to select a setting line between which adjacent set points in the data table.

First, from the address i = 2 to N, the position S _a is in the range of S _{i + 1} −α <S _a <S _i + α and the speed V _a is V _{i + 1} −β <V _a <V _{i in order.} It is checked whether it is within the range of + β (step ST106 to step ST113). N is the number of set points of the current molding condition waveform, and is stored in the storage unit in an updatable manner. Here, the set point (S ₁ , V ₁ ) at the address i = 1 is a position where the plunger starts moving forward, and is excluded because it does not move. In addition, α and β are set so as to make the selection range easier to select by touching the setting line with a finger or the like, and a predetermined value may be set as necessary.

  If the setting line between adjacent setting points is to be selected, the process proceeds to step ST114. If the touch is different from the setting line, the process returns to step ST104 and starts again from the beginning.

If it is determined in step ST114 that the touch is continued, the operator touches the selected setting line and traces the touch panel in the direction in which the operator wants to move. The control device reads the points where the coordinate input device is sequentially touched, and temporarily stores the latest ones as the coordinates (S _m , V _m ) of the movement definition points while overwriting (step ST115). In step ST116, the movement direction and the movement distance from the designated point (S _a , V _a ) to the movement definition point (S _m , V _m ) are calculated.

The setting line in this embodiment is moved only in the vertical axis direction. The set point (S _i , V _i ) and the set point (S _{i + 1} , V _{i + 1} ), which are the two points constituting the set line to be moved previously examined, are the velocity V _i and velocity V _{i + 1 of the} ordinate value. (V _m -V _a ) is added to the movement to the vertical axis in the same manner as the movement definition point (step ST116). The two set points that have moved connect two adjacent points with a straight line, and display a broken line again (step ST117). For example, as shown in FIGS. 24 and 25, the touch is made on a straight line connecting the set point (S ₃ , V ₃ ) and the set point (S ₄ , V ₄ ). In FIG. 25, the setting line is moved in the direction in which the injection speed decreases while being touched. Then, when the touch is stopped, the setting line moving process is terminated.

  In this setting line movement mode, there is no provision (predetermined distance in the drawing mode) between the adjacent set points, so a part of the set molding condition waveform is the distance between the set points. It is possible to correct the waveform so that the change in speed or pressure on the vertical axis is large with respect to the position or time on the horizontal axis. In this setting line movement mode, the operator may specify a plurality of setting lines and move the setting lines simultaneously and in the same direction and at the same distance.

Claims (7)

In a method of setting a forming condition waveform input from a coordinate input device on a display device as a set point and a polygonal line between them while drawing on the display device,
When the drawing mode of the molding condition waveform is selected, the step of sequentially reading and storing the coordinate points continuously drawn and input by the operator and storing them, and the previous coordinate point and the data table that has already been set Sequentially calculating a straight line distance from the set point, storing the coordinate point as the next set point in the data table when the latest straight line distance is a predetermined distance, and adjacent settings thereof Repeat the step of displaying one setting line connecting the points with a straight line until the operator's input operation is completed,
A molding condition waveform drawing setting method, wherein the molding condition waveform is set as a broken line composed of a plurality of the setting lines.   When the shaping condition waveform editing mode is selected for the shaping condition waveform generated by the drawing setting method, the operator moves the set point or setting line that has been set or adds a new setting point or setting line. Between the step of storing the new set point or the set line specified while being updated and the set point that has been set before and after the specified set point or the set line. 2. The shaping condition waveform drawing setting method according to claim 1, wherein the setting condition waveform that has been set is edited by executing a step of generating a new setting line regardless of the distance. When the set point addition mode is selected as the editing mode, a step of temporarily storing the coordinate point drawn and input by the operator so as to specify the point as a new coordinate point;
Comparing the new coordinate point with the abscissa value of the set point in the data table to identify which two adjacent set points are between;
Editing the data table to store the new coordinate point as a new set point between the two set points; and
Editing the set molding condition waveform by executing a step of displaying a setting line that connects the set point that has been set next to the new set point with a straight line and re-displaying the molding condition waveform of the polygonal line. The drawing setting method of a shaping condition waveform according to claim 2, characterized by the above-mentioned. When a set point movement mode is selected as the editing mode, a step of reading and temporarily storing coordinate points drawn and input by an operator so as to identify points;
The step of specifying which set point is selected from among the set points stored in the data table is the temporarily stored coordinate point,
In response to the operator drawing input to move the point continuously from the input,
Editing the data table to overwrite and update the coordinates of the sequentially read points as the coordinates of the selected set points;
Displaying a setting line that connects the selected set point and the set adjacent set point with a straight line, and redisplaying the forming condition waveform of the broken line,
Repeat until the operator's input operation is completed.
Editing the data table to delete the set point from the data table between the coordinate point before and after the set point moved with respect to the abscissa value; and
Based on the edited data table, executing a step of displaying a setting line that connects a set point that has been moved and a set point that is adjacent to each other with a straight line, and re-displaying the forming condition waveform of the broken line, 3. The shaping condition waveform drawing setting method according to claim 2, wherein the shaping condition waveform is edited. When the setting line addition mode is selected as the editing mode, a step of reading a coordinate point drawn and input by an operator so as to specify a point and temporarily storing it as coordinates of a starting point of a new setting line;
The operator completes the input operation while temporarily storing the coordinates of the points that are drawn and input sequentially so as to move the points continuously from the input as the coordinates of the end points of the new setting line. Repeat steps until
Editing the data table to delete the set point from the data table between the start point and the end point with respect to the abscissa value;
Comparing the starting point with the abscissa value of the set point in the data table to determine which two adjacent set points are between;
Editing the data table to store the starting point as a new set point between the two set points;
Comparing the end point with the abscissa value of the set point in the data table and examining which two adjacent set points are between;
Editing the data table to store the end point as a new set point between the two set points;
Based on the edited data table, a setting line that connects a straight line between two new setting points including the start point and the end point and a set point that is adjacent on the outside is displayed. 3. The shaping condition waveform drawing setting method according to claim 2, further comprising the step of re-displaying the shaping condition waveform to edit the set shaping condition waveform. When a setting line movement mode is selected as the editing mode, a step of reading a coordinate point drawn and input by an operator so as to specify a point and temporarily storing it as coordinates of a designated point;
Comparing the specified point with a set point in the data table to identify which two adjacent set points are between,
In response to the operator drawing input to move the point continuously from the input,
Temporarily storing the coordinates of the points that are sequentially read so as to overwrite and update the coordinates of the movement definition points;
Calculating from the ordinate value of the designated point and the movement definition point the direction and distance that the movement definition point has moved relative to the designation point with respect to the vertical axis;
Editing the database to store two set points sandwiching the designated point so as to move the distance in the direction relative to the vertical axis by the ordinate value of the set points;
Based on the edited data table, a setting line that connects a straight line between two set points that sandwich the specified point and a set point that is adjacent on the outside of the set point is displayed, and a waveform for forming a polygonal line is displayed. The step of redisplaying,
3. The molding condition waveform drawing setting method according to claim 2, wherein the setting is repeated until the operator's input operation is completed, and the set molding condition waveform is edited.   The editing mode waveform that has been set is edited by an operator moving a plurality of setting points or a plurality of setting lines or adding a plurality of continuous setting lines in the editing mode. The drawing setting method of the described molding condition waveform.

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