JP7331081B2 - Injection molding machine, display method for injection molding machine, and display method for display device of injection molding machine - Google Patents

Description

The present invention relates to an injection molding machine, a display method for an injection molding machine, and a display method for a display device of an injection molding machine.

For the safety of the operator, the injection molding machine is strictly equipped with safety covers and safety doors to surround the working parts. Therefore, it is difficult for the operator to check the operating state of the injection molding machine when the safety door is closed. In addition, it can be said that the position of the screw in the heating cylinder of the injection device is difficult for the operator to check regardless of the safety cover and the safety door. In order to solve such a problem, it has been practiced to display the state of the injection molding machine on the display screen of the injection molding machine so that the operator can easily grasp the operating state. The display of the operating state on the display screen is generally displayed as numerical values or graphs.

In addition to the display of numerical values and graphs, there is also known technology that describes displaying the operating state of an injection molding machine on a display screen as a moving image. Japanese Patent Laid-Open No. 2002-200002 displays the position of a screw in an injection device of an injection molding machine, the position of a movable mold, and the moving state of an ejector on a screen as a moving image. However, in Patent Document 1, the operation monitor on which moving images are displayed is a CRT screen, and the screen of moving images is simply displayed on the display.

Further, Patent Literature 2 describes an injection molding machine provided with a touch panel display unit for displaying the operating state of the injection molding machine and for changing settings. In the display section shown in FIG. 5 of Patent Document 2, a sub-screen G for displaying a monitor, etc., and a main screen H for changing the setting of molding conditions are displayed separately. It's becoming Also, in the fixed area A on the right side of the display section, a changeover switch for switching screens is always displayed. This selector switch consists of buttons such as "list", "temperature", "clamping", "injection", "production", "monitor", "option", "record", etc. A figure reminiscent of the contents of the operation display is displayed.

Japanese Patent Application Laid-Open No. 61-197214 (claim 1, scope of claims, upper right column to lower left column on page 2, effect column of the invention on page 3, Fig. 1, Fig. 2 (a), Fig. 2 ( b), Fig. 2(c)) JP 2006-305814 A (0027), (0028), (0029), (FIG. 5)

However, in the sub-screen G of the display unit of Patent Document 2, although numerical values are changed and displayed according to the operating state of the injection molding machine, it is possible to visually grasp how far the movement has occurred within the movement stroke. It was difficult. Therefore, it is difficult for the operator to set the injection molding machine according to the progress of the molding operation of the injection molding machine. In Patent Document 2, the switch button is displayed in the fixed area on the right side, but it is difficult for the operator to find the switch button to be set next by visually associating it with the positional relationship of each part of the injection molding machine.

In view of the above problems, the present invention allows the operator to visually grasp the operating state of the movable part easily when looking at the screen of the display device, and to easily switch from the screen to the desired setting screen or status display screen. A first object of the present invention is to provide a movable injection molding machine or a display method for a display device of the injection molding machine which is easy to use. In addition, the user-friendly injection molding machine or injection molding machine that can be visually associated with the positional relationship of each part of the injection molding machine on the display screen and can be searched for an icon for easily transitioning to a desired setting screen or status display screen. It is a second object of the present invention to provide a display method for the display device.

The injection molding machine according to claim 1 of the present invention is an injection molding machine capable of displaying an operating state as a moving image on a display device, wherein the moving image display screen for displaying the moving image is moved at least for each part of the injection molding machine. The operating state of the injection molding machine is displayed by a combination of an image to be displayed and an image to be exchanged.

According to claim 2 of the present invention, the injection molding machine according to claim 1 is characterized in that the screw image is moved during the injection process of the injection molding machine, and the screw image is exchanged during the weighing process.

The injection molding machine according to claim 3 of the present invention is the injection molding machine according to claim 1, wherein the image of the toggle mechanism of the mold clamping device of the injection molding machine is an image in which the crosshead is moved, and the toggle link is a different image. For the image to be exchanged, or for the toggle mechanism, prepare multiple images at the time of mold opening, mold closing, and mold closing, and those images are displayed in the space between the movable platen and the mold clamp. It is characterized by being exchanged.

A display method for a display device for an injection molding machine according to claim 4 of the present invention is a display method for an injection molding machine capable of displaying an operating state as a moving image on the display device, wherein the moving image display screen for displaying the moving image is an injection molding machine. The operation state of the injection molding machine is displayed by combining at least the image to be moved and the image to be exchanged for each part of the molding machine.

A display method for a display device for an injection molding machine according to claim 5 of the present invention is characterized in that, in claim 4, the moving image display screen for displaying the moving image can be displayed in multiple layers by overlapping a large number of images. It is characterized by being programmed as follows.

The injection molding machine of the present invention is an injection molding machine capable of displaying an operating state as a moving image on a display device, wherein the moving image display screen for displaying the moving image is replaced with at least a moving image for each part of the injection molding machine. The operation status of the injection molding machine is displayed by a combination of images, which is very convenient for the operator. Also, the display method of the display device of the injection molding machine of the present invention has the same effect.

1 is a front view of an injection molding machine according to an embodiment of the present invention; FIG. 1 is a block diagram of a control device for an injection molding machine according to an embodiment of the present invention; FIG. It is a figure which shows the moving image display screen of the injection molding machine which concerns on embodiment of this invention. It is a figure which shows the home screen and setting screen of the injection molding machine which concerns on embodiment of this invention. It is a figure which shows the moving image display screen and setting screen of the injection molding machine which concern on embodiment of this invention. It is a figure which shows the transition relation of the screen of the injection molding machine which concerns on embodiment of this invention. It is a figure which shows the moving image display screen of the injection molding machine which concerns on another embodiment of this invention.

An injection molding machine 11 according to an embodiment of the present invention will be described with reference to FIG. The injection molding machine 11 has an injection device 12 and a mold clamping device 13 arranged on a bed 14 . First, the injection device 12 will be described. A base 15 is provided on the upper surface of one side of the bed 14, and a mechanical portion 16 composed of a plate and a power mechanism of the injection device 12 can move forward and backward on the upper surface of the base 15. placed. A heating cylinder 17 equipped with a heater is attached to a front plate (not shown) of the mechanism portion 16, and a screw 18 is arranged in an inner hole of the heating cylinder 17. As shown in FIG. A nozzle 19 having a heater is fixed to the tip of the heating cylinder 17 .

The screw 18 can move forward and backward in the inner hole of the heating cylinder 17 by the operation of an injection servomotor (not shown) of the mechanism section 16. By controlling the injection servomotor, injection control and maintenance in the injection process can be performed. Pressure control and back pressure control in the metering process are performed. A load cell, which is a force sensor, is attached to the injection device 12 to detect the injection pressure during injection control and the back pressure during metering control. The axial position of the screw 18 with respect to the heating cylinder 17 is detected by a rotary encoder attached to the injection servomotor.

The screw 18 is rotatable by the operation of a metering servomotor (not shown). In the weighing process, the molding material is weighed according to the rotational speed of the screw 18 set by controlling the weighing servomotor. The rotational speed of the screw 18 is detected by a rotary encoder attached to the weighing servomotor. An estimated value of the rotational torque of the metering servomotor and the injection servomotor is detected by measuring the current with a current sensor (not shown).

A thermocouple as a temperature sensor is attached to the heating cylinder 17 and the nozzle 19, and the temperature detected by the thermocouple is used to control the temperature of the heater. A material supply device such as a hopper 20 is attached to the front plate, and molding material is supplied from the material supply device toward the inner hole of the heating cylinder 17 . The injection device in the injection molding machine of the present invention is not limited in structure or number, and may be an electric injection device, a hydraulic injection device, or the like.

Next, the mold clamping device 13 will be described. A stationary platen 22 to which a stationary mold 21 is attached is fixed to the upper surface of the bed 14 on the other side. Mold clamping cylinders 23 are arranged near the four corners of the stationary platen 22 , and tie bars 24 are formed by the rods of the mold clamping cylinders 23 . A groove-shaped half nut engaging portion 24a is formed from the intermediate portion to the tip portion of the outer periphery of the tie bar 24. As shown in FIG. The mold clamping cylinder 23 is connected to a hydraulic system (not shown), and the hydraulic pressure of the working oil sent to the mold clamping cylinder 23 is detected by a pressure sensor provided in the pipe to control the mold clamping force.

A movable platen 26 to which a movable die 25 is attached is arranged on the bed 14 on the other side of the fixed platen 22 so as to face the fixed platen 22 . The tie bars 24 are inserted through through holes formed in the vicinity of the four corners of the movable platen 26 . A half nut 27 is provided around each through-hole through which the tie bar 24 is inserted on the rear side of the movable platen 26 . A mold opening/closing mechanism 29 having a mold opening/closing servomotor 28 and a ball screw mechanism is provided on the bed 14. The mold opening/closing mechanism 29 enables a movable platen 26 to move on the bed 14 in the mold opening/closing direction. ing. A rotary encoder attached to the mold opening/closing servo motor 28 detects the position of the movable mold 25 or the movable platen 26 with respect to the fixed plate 22 and the like and the rotational state of the mold opening/closing servo motor 28 . The position of the movable mold 25 or the movable platen 26 with respect to the fixed platen 22 or the like may be detected by a position sensor such as a linear scale provided separately. The rotational torque of the mold opening/closing servomotor 28 during movement of the movable platen 26 is detected by a torque sensor such as a current sensor (not shown), like the injection servomotor and the like. In the injection molding machine of the present invention, the mold clamping device may be a mold clamping device that uses a toggle mechanism and a servomotor, or a hydraulic mold clamping device that uses hydraulic pressure for all operating mechanisms. not.

Next, the control device 30 of the injection molding machine 11 will be described with reference to FIG. The control device 30 is arranged in the bed 14 of the injection device 12, and is connected to the operating device 31, each sensor group 38, amplifiers, solenoids, etc. for operating each actuator via communication lines and the like. However, the control device 30 may be provided outside the bed 14 of the injection molding machine 11 or inside the base 15 of the injection device 12 or the like. The control device 30 has an arithmetic processing function for controlling the operation of the injection molding machine 11, values such as molding conditions input from each setting screen of the operation device 31, and the operating state of the injection molding machine 11 input from each sensor group 38. and a display function for displaying the operation state of the injection molding machine 11 and set values on the display device 32 of the operation device 31. Since the present invention relates to the display method of the display device 32, especially the moving image display and screen transition, among the functions of the control device 30, the operating state of the injection molding machine 11 can be displayed on the display device 32 by moving images or the like. The explanation will focus on the display function to change and display the screen. In the present invention, the term "moving image" refers to a moving image of a device or the like on a screen, and refers to a drawing method that is the opposite of a still image that is always stationary. Moving images of the present invention are mainly moving still images called animation, but moving images using part or all of dynamic images captured by a video camera are not excluded.

A position sensor 33, a pressure sensor 34, a force sensor 35, a torque sensor 36, and a temperature sensor 37 in the block diagram of FIG. The position sensor 33 also includes a rotary encoder sent to the controller 30 via a servo amplifier (not shown). In the present invention, pressure such as hydraulic pressure, force such as mold clamping force and injection force, and torque such as motor torque are defined as load elements separately from position elements. Therefore, the pressure sensor 34, the force sensor 35, and the torque sensor 36 are sensors that detect load elements. Also, the sensor group 38 for detecting the operating state of the injection molding machine 11 may partially use a camera such as a CCD camera, a phototube, a proximity switch, a limit switch, or the like, as equivalents.

Input data in the form of analog signals or digital signals sent from the sensor group 38 is sent to the control device 30 and taken into the calculation section 43 via the input section 39 . The input data to be input to the input unit 39 of the control device 30 include the input data sent from the sensor group 38, numerical values set on each setting screen of the display device 32 of the operation device 31, and There are information input from the button keys 40 and the switch 41 other than the display device 32, and information input from external devices 42 such as a temperature control device, a hot runner controller, an unloader, and a central control device.

Input data input to the input unit 39 is sent to an input data processing unit 45 of an operation unit 43 composed of a CPU or the like, and is arithmetically processed. The calculation unit 43 also has a timer function (not shown). Further, the control device 30 is provided with a storage section 46 composed of a volatile memory, a nonvolatile memory, or the like, and the input data is also sent to the storage section 46 and stored. A change screen generation unit 47 is provided in the calculation unit 43 , and data processed by the input data processing unit 45 is sent to the change screen generation unit 47 . The change screen generator 47 includes a numerical data generator 48 , a moving image data generator 49 , and a graphic data generator 50 . Then, using the data sent from the input data processing unit 45, processing for numerical display on each screen 44 of the display device 32, moving image display on the moving image display screen 54, and graphic display such as waveforms and level gauges on each screen is performed. It is possible.

The configuration between the screens 44 of the display device 32 and the portion that is fixedly displayed in the screen 44 are stored in the storage unit 46, and the fixed screen data generation unit 52 of the calculation unit 43 determines the unchanged portion of the screen 44. is processed for display. In particular, transitions between screens 44 are also processed based on the screen transition data stored in the storage unit 46 . Numerical data generation unit 48, video data generation unit 49, graphic data generation unit 50, and fixed screen data generation unit 52 of change screen generation unit 47 are connected to output unit 51. Information for graphic display and fixed screen display is sent to the display device 32 via the output unit 51 . In FIG. 2, the control device 30 is illustrated by a functional block diagram and details of the hardware configuration are not illustrated, but the input/output interfaces may be the same. Also, the block diagram of the control device 30 describing the function for performing screen display on the display device 32 is not limited to that of FIG. Furthermore, the type and configuration of the OS (operating system) and programs for displaying moving images on the display device 32 are not limited.

Next, the operation device 31 and the display device 32 of the injection molding machine 11 will be described. As shown in FIG. 1, the operating device 31 is attached to the side surface of the stationary platen 22 on the operating side. However, the operating device 31 may be arranged at a position separate from the bed 14 and connected via a communication line, radio, or the like. A display device 32 is provided on the upper portion of the operation device 31 . The display device 32 is a touch panel having a liquid crystal screen or an organic EL screen and also has an input function.

The display device 32 can display a plurality of screens 44, 44, and in this embodiment, two screens 44, 44 can be displayed vertically. In the present invention, the screens 44 such as the moving image display screen 54 shown in FIGS. 3 and 4, the home screen 83 shown in FIG. It refers to a page where specific functions that are transitioned by clicking tabs or icons are aggregated and displayed. Transition refers to changing the screen 44 (page) of the display device 32 to a different screen 44 (page). Below the display device 32 of the operation device 31, an operation unit 53 other than the display device 32 is provided.

Next, the display method of the screen of the display device of the injection molding machine 11 of this embodiment will be described with reference to FIGS. 3 to 6. FIG. In the injection molding machine 11, the operation state during operation of the injection molding machine can be displayed on the display device 32 as a moving image. FIG. 3 shows a moving image display screen 54 displayed on the display device 32. As shown in FIG. In the moving image display screen 54, the parts of the injection device 56 and the mold clamping device 64 of the injection molding machine 55 are drawn in a form corresponding to the parts of the injection device 12 and the mold clamping device 13 of the actual injection molding machine 11. Since images including these moving images are displayed as animation, they are deformed to some extent from the actual machine.

To further explain the display method of each screen, the moving image display screen 54 has a common coordinate axis consisting of an X axis and a Y axis. The moving image display screen 54 is programmed so that a large number of images can be superimposed and displayed in multiple layers. The image is displayed as a collection of monochromatic or multicolored dots distinguishable from other images. In addition, the line of the boundary of each image is displayed as an aggregate of black dots. Among these images, the background color image is arranged on the rear side. Among the images of the injection device 56, the image of the heating cylinder 57 including the nozzle 59 and the heating cylinder inner hole 57a is placed on the image of the background color so as to be movable in the X-axis direction. For the images of the heating cylinder 57, a plurality of images with different colors are prepared so that the conditions can be understood in molding such as premolding in which the injection conditions change, and the color of the cylinder inner hole 57a changes. Further, an image of the screw 58 is arranged on the image of the heating cylinder inner hole 57a so as to be movable in the X-axis direction and replaceable with a different image of the screw 58. As shown in FIG. Also, the image of the mechanism section 60 is moved in the X-axis direction and arranged on the image of the screw 58 .

In each image of the injection device 56 configured as described above, the entire injection device 56 is moved by changing the value of the X-axis coordinate of one point by the same value when the nozzle is touched. In the present invention, the image of the injection device 56 corresponds to the moving image display section. The moving image of the moving image display section is generated by the moving image data generation section 49 of the calculation section 43 . More specifically, in the image of the heating cylinder inner hole 57a on the moving image display screen 54, corresponding to the actual stroke of the screw 18 of the injection device 12, the movement stroke on the moving image display screen 54 is specified at a predetermined scale. is set over the length of Then, the calculated value (percentage value) obtained by dividing the detected position of the screw 18 of the actual machine by the actual full stroke is multiplied by the length of the movement stroke on the moving image display screen 54, thereby moving the image of the screw 58. The X-axis coordinate value of the screw 58 image is calculated. The screw 58 is moved on the moving image display screen 54 in accordance with the change in the coordinate values.

As for the rotation display of the screw 58, a plurality of images (for example, 4 to 20 images) are prepared in which the position of the screw flight is slightly changed corresponding to the rotation angle of the screw 18 of the actual machine. By changing the speed at which the plurality of images are switched and displayed according to the rotation speed of the screw 18 of the actual machine, the rotation moving image of the screw 58 is programmed to be displayed according to the rotation speed.

In the moving image display screen 54, the detected position of the screw 18 of the actual injection device 12 and the detected rotation speed of the screw 18 are displayed as numerical values on or near the drawing of the injection device 56. FIG. Furthermore, in the moving image display screen 54, a weighing completion display portion 61 is arranged as indicated by a triangle in FIG. When the operator changes the molding conditions of the actual injection molding machine 11 and changes the value of the weighing completion position, the position of the weighing completion display 61 on the moving image display screen 54 also changes. It is designed to be Further, when the screw 18 is further retracted after the completion of weighing to perform pullback, the weighing completion display section 61 is changed to a position corresponding to the pullback position, assuming that the pulled back position is the weighing completion position in a broad sense. can be selected as follows. Then, when it is detected that the screw 18 has retreated to the measurement completion position (including the pulled back position) in the measurement process, the color of the measurement completion display section 61 changes from the initial color to a different color, and the measurement process is completed. The operator can easily grasp that.

Furthermore, regarding the display of the injection device 56 on the moving image display screen 54, load factors such as the torque of the weighing servomotor during weighing and the pressure in the heating cylinder 17 are displayed numerically on or near the drawing of the injection device 56. It's like In the moving image display screen 54 of FIG. 3, the metering torque display section 62 and the cylinder pressure display section 63, which are load element display sections, are displayed below the injection device 56. As shown in FIG. The display of the load elements is also displayed by level meters 62a and 63a, which are load element display means other than numbers. The level meters 62a and 63a display the current value as a percentage with the maximum set value or allowable upper limit value set to 100% by changing the color inside the figure. Therefore, from 0% color (including background color), the area ratio in the figure is changed to another color corresponding to the ratio, and when it is 100%, it is filled with a completely different color from the color at 0% and displayed. be.

In the present embodiment, the level meter 62a of the metering torque display unit 62 is displayed by, for example, two triangles whose vertices are in contact with each other. Among them, the triangle on the right side indicates the ratio of the torque value on the plus side of the weighing servomotor, and the triangle on the left side indicates the ratio of the torque value on the minus side of the servomotor for weighing. Further, the level meter 63a of the cylinder pressure display section 63 is displayed by a figure imitating the shape of the injection device 12 as an example. Therefore, by looking at the level meter, the operator can easily visually grasp the value of which part of the injection molding machine 11 and the ratio of the value to the upper limit. As for the display method of the level meters 62a and 63a, openings corresponding to the shapes of the level meters 62a and 63a are provided in the background color image, and the layer of the background color image is further rear side as the background color. The values of the level meters 62a and 63a are displayed by moving a two-color image in which the same color and a different color from the background color are vertically separated according to numerical values (percentages).

Therefore, the level meters 62a and 63a initially display the frame portion of the level meter, and initially display only the background color. may be drawn gradually. In addition, the level meters 62a and 63a may be rectangles such as rectangles, circles, or figures that schematically represent each device, in addition to the figures described above, and may change the color from the original color to another color according to the ratio. If the level meter is a circle, the color of the edge of the circle is changed from the first color to another color, in addition to filling the inside of the circle by changing the color from the first color to another color radially according to the ratio. Anything is fine. Alternatively, the load element display means may be such that a large number of figures such as squares and circles are arranged on the screen at small intervals, and the number of figures corresponding to the ratio is sequentially changed in color or illuminated.

The display method of the mold clamping device 64 on the moving image display screen 54 is the same as that of the injection device 56, and is programmed so that each image can be displayed in multiple layers. Among the images of the mold clamping device 64, the fixed mold 65 and the fixed platen 66 correspond to a still image display portion in which the images do not move, and the movable mold 67, the movable platen 68, the tie bar 69, the half nut 70, the ejector 71 corresponds to a movable moving image display unit. In this embodiment, at least the images of the moving image display portion of the moving image display screen 54 are generated by the moving image data generating portion 49 . The images of the stationary mold 65 and the stationary platen 66 are immovably arranged on the background color image. The tie bar 69 is arranged as a movable image between the image of the background color and the image of the stationary platen 66 and the like as an image movable in the X-axis direction. may be

The image movement of the movable mold 67 and the movable platen 68 in the mold opening/closing direction is the same as the above-described method of moving the image of the screw 58 in the axial direction. The mold opening/closing stroke on the moving image display screen 54 of the movable platen 68 is set over a predetermined length on the background color image at a predetermined scale. Then, the calculated value (percentage value) obtained by dividing the detected position of the movable platen 26 of the actual machine by the full stroke is multiplied by the length of the mold opening/closing stroke on the moving image display screen 54, and the movable mold 67 and the movable platen 68 are multiplied. X-axis coordinate values of the movable die 67 or the movable platen 68 for moving the image are calculated. Then, the movable mold 67 and the movable platen 68 are moved on the moving image display screen 54 according to the amount of movement of the coordinate values. Therefore, the movement of the movable platen 68 on the moving image display screen 54 is realistically displayed as a moving image corresponding to the change in mold opening/closing speed such as low speed movement and high speed movement of the movable platen 26 of the injection molding machine 11 .

The half nut 70 is arranged as a separate image from the movable platen 68, and the coordinate axis in the Y-axis direction is changed according to the opening and closing of the half nut. However, when the mold is opened and closed, it moves in the same length as the movable platen 68 in the X-axis direction. The image of the ejector 71 is provided behind the image of the movable mold 67 so as to be movable in the X-axis direction. When the mold is opened and closed, it moves in the X-axis direction by the same length as the movable mold 67 and the like, and when the ejector protrudes, it moves further in the X-axis direction toward the fixed mold 65 with respect to the movable mold 67 .

However, since the tie bar 24, half nut 27, and ejector in the injection molding machine 11 move only a short distance during operation, the scale of the stroke when displaying a moving image on the moving image display screen 54 is made different for each apparatus, and the moving image display screen The portion 54 is deformed and displayed so that the amount of movement of the image of the portion is increased. Also, for a portion with a short moving distance or a portion not provided with a position detection function, the image on the moving image display screen may be moved at a constant speed in response to detection of movement start detection of the device.

Regarding the image display of the mold clamping device 64 on the moving image display screen 54, the positional information such as the position of the half nut, the position of the ejector, the position of the movable platen, the position of the tie bar, etc., and the information of the load element such as the mold clamping pressure are displayed numerically. As a half nut position display part 72 on or near the drawing of the mold clamping device 64, an ejector position display part (EJ position display part) 73, a movable platen position display part 74, a tie bar position display part 75, a mold clamping pressure display part 76, etc., respectively. In FIG. 1, only numerical values are displayed for the mold clamping pressure in the mold clamping pressure display unit 76, which is the load element display unit. and may be easily grasped visually. Furthermore, the operational status of the servomotor that drives the pump (not shown) that delivers hydraulic oil to the mold clamping cylinder 23 etc. is indicated by the numerical value of the number of revolutions on the motor operation display unit 77 provided in the mold clamping device or its vicinity. By rotating the image of the rotating portion 77a, the presence or absence of the rotated state is displayed in a manner that allows easy visual recognition. Although two rotation speed control pumps are installed in this embodiment, the number and types of pumps are not limited. Also, the injection servomotor and the weighing servomotor may be similarly provided with an image showing the operating state.

In the mold clamping device 64 on the moving image display screen 54, the position of the movable platen 68 is indicated by the numerical display of the movable platen position display section 74 and the mold opening completion triangle indicated by the triangle for indicating that the mold opening completion position has been reached. A display unit 78 is arranged. The position of the mold opening completion display section 78 is set so that when the operator changes the molding conditions and the value of the mold opening completion position is changed, the position of the mold opening completion display section 78 on the moving image display screen 54 is also changed. It's becoming At the mold closing completion position, a mold closing completion display portion 79 is arranged as indicated by a similar triangle. In the mold opening process, when it is detected that the movable platen 26 actually reaches the mold opening completion position, the color of the mold opening completion display section 78 is changed from the initial color to a different color, and then the mold opening completion position is indicated. When removed, it reverts to its original color. In the mold closing process, when it is detected that the movable platen 26 reaches the mold closing completion position, the color of the mold closing completion display section 79 changes from the initial color to a different color. reverted to its original color. Further, as shown only in FIG. 5, near the mold clamping device 64, a mold clamping completion display section 104 is arranged to display that the mold clamping pressure or the mold clamping force has reached a set value. In this embodiment, the mold clamping completion display portion 104 displays characters in the background color portion when mold clamping is completed. The completion of tightening may be displayed.

In addition, an ejector operation display section 80 is arranged inside the movable mold 67 of the mold clamping device 64 of the moving image display screen 54 to indicate the movement direction of the ejector 71 and the reaching of the protruding complete position or the retracting complete position. FIG. 3 shows a state in which the ejector 71 has finished protruding, and the ejector operation display section 80 is indicated by a green triangle with the tip top facing the movable platen 68 . Also, although not shown, when the ejector 71 is in the middle of advancing or retreating, it is indicated by a pink rectangle. Further, when the ejector 71 is at the retracted position as shown in FIG. 5, the ejector operation display portion 80 is indicated by a green triangle with the tip top facing the stationary platen 66 . Therefore, the ejector actuation indicator 80 moves in the X-axis direction together with the movable mold 67 . In this embodiment, the ejector operation display unit 80 serves both to confirm that the ejector 71 has reached the projection completion position and to confirm that it has reached the retraction completion position. For confirmation, the projection completion display section and the retraction completion display section may be separately displayed. Also, the figure of the ejector operation display portion 80 is not limited to the above-described triangle or square.

The weighing completion display unit 61, the mold opening completion display unit 78, the mold closing completion display unit 79, and the ejector operation display unit 80 are referred to as an operation state confirmation unit in the generic concept of the present invention, and as a subordinate concept, they are referred to as operation status confirmation units. It is called a completion confirmation part. Each of the operation completion confirming parts changes color from the initial color to another color when the completion of the operation is confirmed. Alternatively, as a method of displaying the operation completion confirmation part other than the above, the mark of the operation completion confirmation part is displayed from the state where it is not displayed, the shape of the operation completion confirmation part is changed, the light is turned on, etc. An operator may be notified. By providing these operation completion confirmation units, conventionally, the operator confirmed the numerical values such as the weighing completion position, the mold opening completion position, the mold opening completion position, etc. Although it was necessary to confirm whether the operation of the actual machine has completely stopped, it has become possible to confirm at a glance on the display device 32, which has greatly improved usability.

Next, the moving image display of the moving image display screen 54 corresponding to the molding cycle of the injection molding machine 11 will be described. 3 and 5, the injection device 56 on the moving image display screen 54 has advanced as a whole to the coordinate axis corresponding to the advance of the injection device 12, and the nozzle 59 is in contact with the fixed mold 65. As shown in FIG. In the next mold closing process, the amount of movement of the movable platen 26 is detected by a position sensor 33 such as a rotary encoder of the mold opening/closing servomotor and sent to the control device 30 . Then, a moving image display signal is generated based on the amount of movement in the moving image data generating unit 49 of the computing unit and sent to the display device 32. On the moving image display screen 54, the images of the movable mold 67 and the movable platen 68, the half nut 70, and the half nut 70 are displayed. , and the image of the ejector 71 are moved rightward by the X-axis coordinate axis corresponding to the moving distance ratio in FIG. As a specific screen processing, the color of the dots on the liquid crystal screen in the portion where the movable platen 68 has moved changes from the background color to the color of the movable platen 68 (including the black of the boundary portion) (or from the color of the movable platen 68 to the background color). The movement of the movable platen 68 is drawn by changing the color).

When the mold closing completion of the movable platen 26 is confirmed, the mold closing completion display portion 79 changes color from pink to green, for example. Further, each half nut 70 is moved in the Y-axis direction after completion of mold closing. Further, along with the moving image display of the operating state of the injection molding machine 11, the numerical values of the movable platen position display section 74 and the half nut position display section 72 are changed and displayed according to the data sent from the numerical data generation section 48. FIG. Then, in the next mold clamping process, the pressure sensor 34 detects the increase in pressure of the working oil in the mold clamping cylinder, which is sent to the control device 30 and transmitted through the numerical data generator 48 to the tie bar position display section 75 of the moving image display screen 54, the mold The numerical value of the tightening force display section 76 is also changed and displayed. Further, the mold clamping completion display section 104 displays that the mold clamping pressure or the mold clamping force reaches the set value and the mold clamping is completed. In all processes including the mold clamping process, the operation status of the servo motor that drives the rotation speed control pump can be confirmed by pictorial display of the rotation state and numerical display of the rotation speed on the rotating portion 77a of the motor operation display section 77. It's becoming

In the next injection process, the movement position of the screw 18 of the injection device 12 is detected by a position sensor 33 such as a rotary encoder of an injection servomotor and sent to the control device 30 . Then, the X-axis coordinate axis of the screw 58 corresponding to the ratio of the moving distance of the screw 18 is calculated by the moving image data generation unit 49 in the same manner as the movement moving image display of the movable platen 68 when the mold is closed, and the screw 58 is shown in the moving image display screen 54. 3 is moved to the left. As a specific screen processing, the coloration of the dots on the liquid crystal screen in the portion where the screw 58 is moved changes from the color of the heating cylinder inner hole 57a to the color of the screw 58 (or from the color of the screw 58 to the color of the inner hole 57a). The movement of the screw 58 is plotted by changing. In the injection process, the pressure in the heating cylinder is converted from the value of the load cell, and the level meter 63a of the cylinder pressure display section 63 and the numerical value are changed.

During the pressure holding process following the injection process, the value of the cylinder pressure display section 63 is changed and displayed according to the detected value. When the weighing process is performed in parallel with the cooling process, the rotation speed of the screw 58 of the injection device 56 is detected by the rotary encoder and sent to the control device 30, and the moving image data generator 49 detects the rotation speed corresponding to the rotation speed. A rotation animation of the screw 58 is generated and displayed on the animation display screen 54 . The axial position of the screw 18 in the weighing process is detected by the injection rotary encoder, sent to the control device 30, and processed in the same manner as the arithmetic processing by the moving image data generator 49 of the screw 58 during injection. Then, the screw 58 is moved toward the right side in FIG. 3 on the moving image display screen 54 . Therefore, in the weighing process, the screw 58 on the moving image display screen 54 appears to retreat while rotating inside the heating cylinder 57 . At this time, the images of the screws 58 arranged on the back side of the image of the mechanism section 60 are hidden behind the mechanism section 60 in order from the rear side due to the retreating of the screws. When it is detected that the actual screw 18 reaches the measurement completion position, the measurement completion display portion 61 changes color from pink to green, for example.

Next, when the cooling time is completed, the pressure sensor 34 detects that the pressure has been released, and the numerical value of the mold clamping pressure display section 76 is changed. The moving image display method of the next mold opening process is the same as that of the above mold closing process, but the movable mold 67 and the movable platen are displayed on the moving image display screen 54 corresponding to the detection values of the rotary encoder of the mold opening/closing servomotor 28. The 68 image, the image of the halfnut 70 and the image of the ejector 71 are moved towards the left side of FIG. At this time, when the mold closing completion position is deviated, the color of the mold closing completion display portion 78 is changed from green to pink, and when the mold opening completion position is reached, the color of the mold opening completion display portion 78 is changed from pink to green.

Next, when the actual ejector is actuated, the position of the ejector rod is detected by the position sensor 33 of the encoder of the servomotor (not shown), etc., and is further processed by the moving image data generating section 49, and the image of the ejector 71 is obtained as shown in FIG. It is moved toward the stationary mold 65 . At this time, since the image of the ejector 71 is arranged on the back side of the image of the movable mold 67, the portion that was hidden in the image of the movable mold 67 before advancing becomes longer as the ejector advances.

When it is detected that the ejector rod of the actual ejector has reached the projection completion position, the green triangle of the ejector operation display section 80 is directed to the left in FIG. is displayed. When the ejection of the molded product is completed and the ejector retracts, the display of the ejector operation display section 80 disappears and a pink square is displayed. When the robot is further retracted to the retraction completion position, the green triangle of the ejector operation display section 80 is displayed so that the top of the tip faces rightward in FIG. The position of the ejector rod when the ejector is activated is also numerically displayed on the ejector position display section 73 . The elapsed time of one molding cycle is counted by the timer in the calculation section and displayed on the cycle time display section 81 of the moving image display screen 54 .

Strictly speaking, the detection of the operating state of the injection molding machine 11 by the sensor group 38 such as the position sensor 33 and the display on the moving image display screen 54 requires communication time and processing time of the calculation unit 43. As a bodily sensation, moving images are displayed on the moving image display screen 54 substantially simultaneously with the operation of the injection molding machine 11 .

In addition to the cycle time display section 81, the moving image display screen 54 is provided with a shot number display section 103 for numerically displaying the number of times of molding. The cycle time displayed on the cycle time display section 81 is reset to 0 when one molding cycle is completed. Regarding the cycle time and the number of shots, the degree of progress of each process and the molding plan as a whole may be displayed by display means other than numerical values, such as a level meter. In particular, if you want to compare the progress of the process on the injection side and the progress of the process on the clamping side in the molding cycle, place the level meter on the injection side and the level meter on the clamping side in parallel vertically, horizontally, etc. may be set to

Next, the relationship between the screens 44 of the display device 32 of this embodiment and the transition between the screens 44 will be described. In this embodiment, two screens can be displayed simultaneously on the display device 32 . On the lower screen 44, the home screen 83 is displayed in the lower part of the touch panel by touching the home tab 82 shown in the lower part of FIG. is transitioned to the moving image display screen 54 and displayed. An icon 105 for transition to the molding history screen is provided on the right side of the operation monitor tab 84 on the lower side of the touch panel. By touching the icon 105, a molding history screen is displayed on the lower screen 44. FIG. 4 shows an example in which the home screen 83 is displayed in the lower part of the touch panel, and FIG. 5 shows an example in which the moving image display screen 54 is displayed in the lower part of the touch panel of the display device 32. An example in which the history screen is displayed in the lower portion is omitted from the illustration. In addition to the home screen 83, the moving image display screen 54, and the molding history screen, the transition screens on the lower side of the touch panel may include another screen 44 as well. In the upper portion of the touch panel of the display device 32, either a setting screen such as the mold opening/closing setting screen 93 or a status display screen such as an oscilloscope screen indicating the operating status of the injection molding machine 11 can be displayed. . The status display screen may also include a screen showing molding history, and the molding history screen may be displayed on the upper screen 44 .

On the home screen 83 shown in FIG. 4, a large number of icons for transition are arranged with pictures associated with each screen or each process for transitioning (moving) the upper setting screen to one of the setting screens. there is As an example, when the operator touches the icon 85 for the mold opening/closing setting screen on the home screen 83, the mold opening/closing setting screen 93 is displayed on the upper portion of the touch panel. These icons may be customized and arranged on the touch panel by the operator. Also, an icon for transition to the moving image display screen 54 may be arranged in the home screen 83, and the home screen 83 may be changed to the moving image display screen 54 by touching the icon.

FIG. 5 shows an example in which the mold opening/closing setting screen 93 is displayed on the upper portion of the display device 32, and the moving image display screen 54 is displayed vertically in parallel on the lower portion. In FIG. 5, the movable platen 68 and the movable mold 67 move from the mold opening completion state shown in FIG. 3 to the mold closing completion state. As with the home screen 83, the moving image display screen 54 of FIGS. 3 and 5 can also have a large number of transition icons displaying pictures associated with transition destination screens. The icons are arranged on the moving image display screen 54 in association with the parts of the injection molding machine 11 that are set on the setting screen. More specifically, transition icons for displaying the setting screen of the injection device 12 and the state display screen that displays the state of the injection device 12 are arranged above or near the image of the injection device 56 on the video display screen 54. It is In this embodiment, an icon 86 for transition to the injection setting screen and an icon 87 for transition to the weighing setting screen are arranged above the image of the injection device 56 . An icon 88 for transitioning to the heating cylinder temperature setting screen and an icon 89 for transitioning to the hot runner setting screen are provided near the upper side of the image of the injection device 56, and near the lower side of the injection device 56, An icon 90 for transition to the quality control screen and an icon 91 for transition to the oscilloscope screen are provided.

Above the image of the mold clamping device 64, an icon 85 for transition to the mold opening/closing setting screen and an icon 92 for transition to the setup setting screen on which setup settings such as mold exchange can be made are provided. Therefore, the operator can easily visually associate the setting screen and the status display screen he/she wants to select with the images of each device such as the injection device 56 and the mold clamping device 64 of the injection molding machine on the moving image display screen 54 and the icons indicating the setting contents. It can be found, and various setting screens and status display screens can be quickly displayed on the display device 32 . In this embodiment, the icons arranged on the moving image display screen 54 are fixedly arranged, but the operator may select the icons to be displayed or change the arrangement position.

Next, the mold opening/closing setting screen 93 will be described. In the lower part of the screen, there is a mold opening/closing speed setting section 94 for setting the set values of the mold closing speed of the high speed and the low speed of the mold closing process, and the setting value of the mold protection is set. mold protection setting unit 95, half nut lock display unit 96, mold clamping setting unit 97 for setting the setting value of the mold clamping process, strong mold opening setting unit 98 for setting the setting value of the strong mold opening process, half nut unlocking A screen of a lock display section 99 and a mold opening speed setting section 100 for inputting high speed and low speed setting values for the mold opening process are arranged. When the set value portion of each setting section is clicked, a separate ten-key screen pops up and the set value can be input. Alternatively, setting values can be input from a ten-key keyboard provided at the bottom of the display device 32 .

In addition, a mold opening/closing speed setting unit 94, a mold protection setting unit 95 for setting mold protection setting values, a half nut lock display unit 96, a mold clamping setting unit 97 for setting mold clamping process setting values, Blocks on the screen of a strong mold opening setting unit 98 for setting the setting values for the mold opening process, a half nut unlock display unit 99, and a mold opening speed setting unit 100 for inputting high speed and low speed setting values for the mold opening process In accordance with the progress of the process, which process is currently being performed is displayed in a different color from the initial color. Therefore, it is possible to confirm which process is currently being performed together with the moving image display screen 54 . A display frame portion 101 is provided in the upper portion of the mold opening/closing setting screen 93. By selecting one of a plurality of tabs 102 for transition arranged in the upper portion, a screen for graphic display of molding data and quality control data can be displayed. A screen for setting detailed setting values and the like are displayed on the screen. The mold opening/closing setting screen 93 may be provided with an icon for transition to a molding history screen (not shown), and by touching the icon, the molding history screen may be displayed on the lower screen 44, for example. Therefore, all setting screens in the present embodiment may be capable of displaying not only setting input functions but also status display screens for displaying data and icons for transition to other screens.

Next, the transition relationship of the screen 44 of the display device 32 will be described with reference to FIG. As described above, the home screen 83 and moving image display screen 54 of the display device 32 are changed from the home screen 83 to the moving image display screen 54 by touching the operation monitor tab 84 on the lower side of the touch panel by the operator, or by touching the home tab 82. As a result, screen transition from the moving image display screen 54 to the home screen 83 is possible. Furthermore, when the operator touches any of the screen transition icons 85 to 92 on the home screen 83 or the moving image display screen 54, the screen 44 on the upper side of the display device 32 changes from the mold opening/closing setting screen 93 to another injection setting screen. It is possible to perform screen transitions between each setting screen and each status display screen, such as transitioning to . Therefore, an icon is a kind of instruction means for instructing screen transition on the display device 32, and is displayed using a picture, pictogram, character, or the like associated with the screen of the transition destination. The icons for transition displayed on the home screen 83 and the moving image display screen 54 may also include the setting screen of the external device 42 .

Therefore, in this embodiment, the operator can perform molding while always displaying the moving image display screen 54 during manual molding (including semi-automatic molding) or automatic molding. The operating state can be easily grasped visually. As an example, especially during manual molding, quickly confirm that the movable platen 26 is at the mold opening completion position and open the safety door, or quickly confirm that the screw 18 is at the weighing completion position and perform manual injection. , purge, etc. can be performed. In addition, an inexperienced operator can easily grasp the current operation state of the injection molding machine 11 from the animation. In this embodiment, various setting screens and status display screens can be changed from the moving image display screen 54 of the display device 32 as well. Therefore, the setting screen and the status display screen can be launched without returning to the home screen 83 once, which facilitates screen transition and setting. This also makes it easier for the operator to keep the moving image display screen 54 displayed all the time.

The display method of the home screen 83, the moving image display screen 54, the setting screen, the status display screen, etc. of the display device 32 is not limited to the above embodiment. The number of divisions of the screen 44 on the display device 32 and the display positions of the home screen 83 and the moving image display screen 54 are not limited. The display device 32 may have a single screen without screen division. In this case, when the icon for transition to the setting screen arranged on the moving image display screen 54 is touched, the moving image display screen 54 disappears and the setting screen is displayed. A switching display is displayed.

Further, in addition to the mold opening completion display section 78 and the like, the present invention may be provided with an operating state confirmation section for displaying the operating state of the injection molding machine 11 along with the moving picture on the moving picture display screen 54 by changing the color or appearing of the figure. As an example, the fact that the mold clamping pressure or the mold clamping force has reached a set value may be notified by a change in color of part or all of the figure of the mold clamping device 64 . Alternatively, the color of the tie bar 69 may be gradually changed according to the mold clamping force. In addition, when the molding material of the injection molding machine becomes below a certain level, the color of the figure of the material supply device is changed, or a figure for notification of material shortage is provided in the vicinity of the figure of the material supply device, and the color of the figure is changed or appears. The notification may be made by causing the Furthermore, when an abnormality occurs in any device of the injection molding machine 11, the figure corresponding to the device in which the abnormality has occurred may be discolored to a different color. Moreover, the display of the moving image display screen 54 may be displayed together with a message.

Next, a moving image display screen of an injection molding machine according to another embodiment of the present invention will be described with reference to FIG. FIG. 7 shows a moving image display screen 111 of an electric injection molding machine equipped with a toggle type mold clamping device. The method of displaying the moving image display screen 111 on the display device is the same as that of the moving image display screen 54 of the above-described embodiment, so the description thereof will be omitted. Then, the display of the injection device 113 of the injection molding machine 112 on the moving image display screen 111, the display of the operation completion display part such as the measurement completion display part 115 that displays that the screw 114 has reached the measurement completion position, the injection setting screen and the measurement setting are displayed. Since the display method of the icon 116 for transition to the screen and each state display screen is the same as that of the moving image display screen 54 of the above-described embodiment, description thereof will be omitted.

In the mold clamping device 117 of the moving image display screen 111, a stationary platen 119 to which a stationary mold 118 is attached is arranged as a still image layer. On the other hand, a movable platen 121 to which a movable mold 120 is attached, an ejector 122, a mold clamping servomotor 123, and a mold clamping housing 125 to which a ball screw 124 is mounted are arranged as images movable only in the X-axis direction on the coordinate screen. there is Further, regarding the image of the toggle mechanism 126, the toggle links 127, 128, 129 are created as separate images that are movable and rotatable in the X-axis direction. Also, the crosshead 130 that moves along the ball screw 124 is arranged as an image that moves only in the X-axis direction. For the toggle mechanism 126, a plurality of images are prepared when the mold is opened, during mold closing, and when the mold is closed, and these images are exchanged in the space between the movable platen 121 and the mold clamping housing 125. good too.

Furthermore, on the moving image display screen 111, the state in which the molten resin is injected from the injection device 113 into a clamped cavity (not shown) is displayed in a different color from the original color. In the mold open state of FIG. 7, the appearance of the molded product 132 being ejected by the ejector 122 is displayed. In addition, on the moving image display screen 111, a moving image of a state in which the molded product 132 is taken out by the takeout machine 131 is also displayed. A moving image of the molten resin injected into the mold-clamped cavity is created by a method of exchanging and displaying a plurality of images. Also, the extractor 131 and the molded product 132 are created as images that can move in both the X-axis direction and the Y-axis direction.

In addition, on or near the image of the mold clamping device 117, an icon 133 for transition to a mold opening/closing setting screen or the like, a mold opening completion display section 134, and a mold closing completion display section 135 are provided. , etc., is the same as the moving image display screen 54 . Furthermore, near the upper side of the image of the injection molding machine 112 on the moving image display screen 111, a mold clamping force display unit 136, which is a load element display unit that numerically displays the mold clamping force detected by a load cell or the like, A movable platen position display unit 137 for displaying the position, a crosshead position display unit 138 for displaying the position of the crosshead, an ejector position display unit 139 for displaying the position of the ejector, a rotary encoder of a mold clamping housing moving servomotor (not shown), and A mold clamping housing position display unit 140 is provided for displaying the position of the mold clamping housing detected by a rotary encoder or the like of the mold clamping servomotor. Although not shown, the moving image display screen 111 of FIG. 7 may be provided with a mold thickness display section.

Also, in the vicinity of the lower side of the image of the injection molding machine 112 on the moving image display screen 111, a mold clamping motor that displays the operating states of the mold clamping servomotor, the ejector servomotor, the injection servomotor, and the weighing servomotor is displayed. An operation display portion 141, an ejector motor operation display portion 142, an injection motor operation display portion 143, and a metering motor operation display portion 144 are provided, and the number of rotations of the motor and the presence or absence of the rotation state are displayed in a form that can be easily understood. At least one of the motor operation display sections 141, 142, 143 and 144 may display the torque of the motor in the form of a numerical value or a level meter.

Although the present invention is not enumerated one by one, it is not limited to the present embodiment, and a combination of the above descriptions and modifications made by those skilled in the art based on the spirit of the present invention are also applied. It goes without saying. The injection molding machine of the present invention also includes a die casting machine that performs metal injection molding.

In an injection molding machine that performs multicolor molding by rotating a plurality of molds attached to a rotating part such as a rotary table, it is necessary to display the molds and the rotating part of the rotating part on a video display screen of a display device. can be Injection molding machines that perform die slide molding, in which hollow molded products are molded by moving the mold in the direction perpendicular to the mold opening/closing direction, should also display moving parts of the mold on the display screen. may Further, the injection molding machine of the present invention is not limited to a horizontal injection molding machine in which the mold is opened and closed in the horizontal direction, but may be a vertical injection molding machine in which the mold is opened and closed in the vertical direction.

11, 55, 112 Injection molding machine 12, 54, 113 Injection device 13, 63, 117 Mold clamping device 30 Control device 32 Display device 49 Video data generation unit 54 Video display screen 85, 133 Icon for transition to mold opening/closing setting screen 86, icon for transition to injection setting screen 87 icon for transition to measurement setting screen 88 icon for transition to temperature setting screen 89 icon for transition to hot runner setting screen 90 icon for transition to quality control screen 91 oscilloscope Icon 92 for transition to the screen Icon 105 for transition to the setup setting screen Icon for transition to the molding history screen

Claims (5)

In an injection molding machine that can display the operating state as a moving image on a display device,
The moving image display screen for displaying the moving image includes at least an image to be moved and a plurality of sheets of the rotating portion prepared in advance corresponding to the rotating state of the rotating portion for each part including the rotating portion of the injection molding machine. An injection molding machine characterized by displaying a current operating state of the injection molding machine by a combination of an image that is replaced with a different image in the image . The rotating part is a screw,
The plurality of images of the rotating portion are a plurality of images of the screw in which the position of the screw flight is slightly changed corresponding to the rotation angle of the screw,
2. The method according to claim 1, wherein the screw image is moved in the injection process of the injection molding machine, and the screw image is replaced with a different screw image among the plurality of screw images in the weighing process. Injection molding machine. The image of the toggle mechanism of the mold clamping device of the injection molding machine is an image in which the crosshead is moved and the toggle link, which is the rotating part, is replaced with the different image, or
Alternatively, for the toggle mechanism, a plurality of images are prepared at the time of mold opening, mold closing, and mold closing, and the images are exchanged in the space between the movable platen and the mold clamping housing . The injection molding machine according to claim 1. In a display method for an injection molding machine capable of displaying an operating state as a moving image on a display device,
The moving image display screen for displaying the moving image includes at least an image to be moved and a plurality of sheets of the rotating portion prepared in advance corresponding to the rotating state of the rotating portion for each part including the rotating portion of the injection molding machine. A display method for an injection molding machine, comprising displaying a current operating state of the injection molding machine by means of a combination of images that are replaced with different images in the image . 5. The display of the display device of the injection molding machine according to claim 4, wherein the moving image display screen for displaying the moving image is programmed so that a large number of images can be superimposed and displayed in multiple layers. Method.

Images