Injection molding machine control device, injection molding machine and program

Abstract

This invention reduces the user's operational burden. The control device for an injection molding machine includes: a receiving unit that receives the selection of a process of the injection molding machine and setting information indicating the setting of the process or the selection of an item indicating the actual value detected in the process; and an output unit that, when the receiving unit receives the selection of the process, outputs display information in a graphical format to a display device, showing the changes in the setting information or the actual value based on the item pre-established with a corresponding association to the selected process.

Description

Technical Field

[0001] This application claims priority based on Japanese Patent Application No. 2021-131362, filed on August 11, 2021. The entire contents of that Japanese application are incorporated herein by reference.

[0002] This invention relates to a control device for an injection molding machine, an injection molding machine, and a program. Background Technology

[0003] Traditionally, various sensors have been installed in injection molding machines. Therefore, a technique has been proposed to display the results of various actions during injection molding based on detection signals from sensors, or to display waveform data based on user-defined information, on a display device.

[0004] In recent years, various techniques have been proposed for displaying waveform data on the display device of injection molding machines. For example, Reference 1 proposes a technique that displays waveform data showing test results for multiple items at different scales for each item, thereby also functioning as a measuring instrument.

[0005] Patent Document 1: Japanese Patent Application Publication No. 2004-155065

[0006] In the technology described in Patent Document 1, items to be displayed for each step are pre-set. However, in most cases, the items that the user wants to display vary depending on the situation. Therefore, a technology that allows users to select the items to be displayed has also been proposed.

[0007] However, when the system allows users to select the items to display for each process, they need to choose the desired item from multiple options each time they switch processes. Because there are many selectable items, the process of switching processes becomes cumbersome, thus increasing the user's workload. Summary of the Invention

[0008] One aspect of the present invention provides a technique to reduce the operational burden when switching between processes in an injection molding machine.

[0009] One aspect of the present invention relates to a control device for an injection molding machine, comprising: a receiving unit for receiving a process selection of the injection molding machine and setting information indicating the setting of the process or a selection of an item indicating an actual value detected in the process; and an output unit for outputting display information, in a graphical form, to a display device, showing the change of the setting information or the actual value based on the item pre-established with a corresponding association to the selected process.

[0010] Invention Effects

[0011] According to one aspect of the present invention, the user's operational burden is reduced by automatically switching to the item that is associated with the process. Attached Figure Description

[0012] Figure 1 This is a diagram showing the state of the injection molding machine according to the first embodiment at the end of mold opening.

[0013] Figure 2 This is a diagram showing the state of the injection molding machine according to the first embodiment when the mold is closed.

[0014] Figure 3 This diagram uses function blocks to represent the structural components of the control device according to the first embodiment.

[0015] Figure 4 This is a diagram illustrating the data table structure of the process-corresponding information storage unit according to the first embodiment.

[0016] Figure 5 This is a diagram illustrating the display screen output by the output unit according to the first embodiment.

[0017] Figure 6 This is a diagram showing the pop-up screen output by the output unit when a process change operation of the trigger bar is received in the first embodiment.

[0018] Figure 7 This is a diagram illustrating the display screen output by the output unit according to the first embodiment.

[0019] Figure 8 This is a flowchart illustrating the control process performed in the control device according to the first embodiment when a process selection is received.

[0020] Figure 9 This is a diagram illustrating the display screen output by the output unit according to the second embodiment.

[0021] Figure 10 This is a diagram showing the pop-up screen output by the output unit when a process change operation of the trigger bar is received in the second embodiment.

[0022] Figure 11 This is a diagram illustrating the display screen output by the output unit according to the second embodiment.

[0023] Figure 12 This is a flowchart illustrating the control process performed in the control device according to the second embodiment when a process selection is received.

[0024] In the diagram: 10 - Injection molding machine, 700 - Control device, 711 - Process corresponding information storage unit, 712 - Receiving unit, 713 - Output unit, 714 - Update unit. Detailed Implementation

[0025] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Furthermore, in the drawings, the same or corresponding structures are sometimes labeled with the same or corresponding symbols, and descriptions are omitted.

[0026] Figure 1 This is a diagram showing the state of the injection molding machine according to the first embodiment at the end of mold opening. Figure 2 This diagram illustrates the state of the injection molding machine according to the first embodiment during mold closing. In this specification, the X-axis, Y-axis, and Z-axis are mutually perpendicular directions. The X-axis and Y-axis represent horizontal directions, and the Z-axis represents vertical directions. When the mold closing device 100 is horizontal, the X-axis is the mold opening and closing direction, and the Y-axis is the width direction of the injection molding machine 10. The negative side of the Y-axis is referred to as the operating side, and the positive side of the Y-axis is referred to as the opposite side of the operating side.

[0027] like Figures 1-2 As shown, the injection molding machine 10 includes: a mold clamping device 100, a mold opening and closing device 800; an ejection device 200 for ejecting the molded article formed by the mold device 800; an injection device 300 for injecting molding material into the mold device 800; a moving device 400 for moving the injection device 300 forward and backward relative to the mold device 800; a control device 700 for controlling each component of the injection molding machine 10; and a frame 900 for supporting each component of the injection molding machine 10. The frame 900 includes: a mold clamping device frame 910 for supporting the mold clamping device 100; and an injection device frame 920 for supporting the injection device 300. The mold clamping device frame 910 and the injection device frame 920 are respectively mounted on the base plate 2 via horizontal adjusting casters 930. The control device 700 is arranged in the internal space of the injection device frame 920. The components of the injection molding machine 10 will be described below.

[0028] (Mold closing device)

[0029] In the description of the mold closing device 100, the moving direction of the movable pressure plate 120 when the mold is closed (e.g., the positive X-axis direction) is set to forward, and the moving direction of the movable pressure plate 120 when the mold is opened (e.g., the negative X-axis direction) is set to rearward.

[0030] The mold closing device 100 performs mold closing, pressurization, mold closing, demolding, and mold opening of the mold assembly 800. The mold assembly 800 includes a fixed mold 810 and a movable mold 820. The mold closing device 100 is, for example, horizontal, and the mold opening and closing direction is horizontal. The mold closing device 100 has a fixed pressure plate 110 for mounting the fixed mold 810, a movable pressure plate 120 for mounting the movable mold 820, and a moving mechanism 102 for moving the movable pressure plate 120 relative to the fixed pressure plate 110 in the mold opening and closing direction.

[0031] The fixed pressure plate 110 is fixed relative to the mold closing device frame 910. The fixed mold 810 is installed on the surface of the fixed pressure plate 110 opposite to the movable pressure plate 120.

[0032] The movable pressure plate 120 is configured to move freely relative to the mold clamping device frame 910 in the mold opening and closing direction. A guide member 101 for guiding the movable pressure plate 120 is laid on the mold clamping device frame 910. A movable mold 820 is mounted on the surface of the movable pressure plate 120 opposite to the fixed pressure plate 110.

[0033] The moving mechanism 102 performs mold closing, pressurization, mold clamping, demolding, and mold opening of the mold device 800 by moving the movable pressure plate 120 forward and backward relative to the fixed pressure plate 110. The moving mechanism 102 includes an toggle seat 130 spaced apart from the fixed pressure plate 110, a connecting rod 140 connecting the fixed pressure plate 110 and the toggle seat 130, an toggle mechanism 150 that moves the movable pressure plate 120 relative to the toggle seat 130 in the mold opening and closing direction, a mold clamping motor 160 that operates the toggle mechanism 150, a motion conversion mechanism 170 that converts the rotational motion of the mold clamping motor 160 into linear motion, and a mold thickness adjustment mechanism 180 that adjusts the distance between the fixed pressure plate 110 and the toggle seat 130.

[0034] The toggle seat 130 is spaced apart from the fixed pressure plate 110 and is mounted on the mold clamping device frame 910 so as to move freely in the mold opening and closing direction. Furthermore, the toggle seat 130 can be configured to move freely along a guide laid on the mold clamping device frame 910. The guide of the toggle seat 130 can be interchangeable with the guide 101 of the movable pressure plate 120.

[0035] In addition, in this embodiment, the fixed pressure plate 110 is fixed relative to the mold clamping device frame 910, and the toggle seat 130 is configured to move freely relative to the mold clamping device frame 910 in the mold opening and closing direction. However, it is also possible that the toggle seat 130 is fixed relative to the mold clamping device frame 910, and the fixed pressure plate 110 is configured to move freely relative to the mold clamping device frame 910 in the mold opening and closing direction.

[0036] Connecting rods 140 connect the fixed pressure plate 110 and the toggle seat 130 at a distance L in the mold opening and closing direction. Multiple connecting rods 140 can be used (e.g., four). The multiple connecting rods 140 are configured parallel to the mold opening and closing direction and extend according to the clamping force. A connecting rod strain detector 141 for detecting the strain of the connecting rod 140 can be installed on at least one connecting rod 140. The connecting rod strain detector 141 sends a signal indicating its detection result to the control device 700. The detection result of the connecting rod strain detector 141 is used for detecting the clamping force, etc.

[0037] In this embodiment, a connecting rod strain gauge 141 is used as the clamping force detector for detecting the clamping force, but the present invention is not limited to this. The clamping force detector is not limited to a strain gauge and may also be piezoelectric, capacitive, hydraulic, or electromagnetic, etc., and its installation position is not limited to the connecting rod 140.

[0038] A toggle mechanism 150 is positioned between a movable pressure plate 120 and a toggle seat 130, allowing the movable pressure plate 120 to move relative to the toggle seat 130 in the mold opening and closing direction. The toggle mechanism 150 has a crosshead 151 that moves in the mold opening and closing direction and a pair of linkages that extend and retract with the movement of the crosshead 151. Each linkage has a first linkage 152 and a second linkage 153 connected by pins or the like, allowing for free extension and retraction. The first linkage 152 is mounted by pins or the like to allow for free oscillation relative to the movable pressure plate 120. The second linkage 153 is mounted by pins or the like to allow for free oscillation relative to the toggle seat 130. The second linkage 153 is mounted to the crosshead 151 via a third linkage 154. When the crosshead 151 moves forward or backward relative to the toggle seat 130, the first linkage 152 and the second linkage 153 extend and retract, causing the movable pressure plate 120 to move forward or backward relative to the toggle seat 130.

[0039] Furthermore, the structure of the toggle mechanism 150 is not limited to Figure 1 and Figure 2 The structure shown. For example, in Figure 1 and Figure 2 In this configuration, each link group has 5 nodes, but it can be 4, or it can be the node where one end of the third link 154 is connected to the first link 152 and the second link 153.

[0040] The clamping motor 160 is mounted on the toggle seat 130 and operates the toggle mechanism 150. The clamping motor 160 moves the crosshead 151 forward and backward relative to the toggle seat 130, causing the first link 152 and the second link 153 to extend and retract, thereby moving the movable pressure plate 120 forward and backward relative to the toggle seat 130. The clamping motor 160 is directly connected to the motion conversion mechanism 170, but can also be connected to the motion conversion mechanism 170 via a belt and pulleys.

[0041] The motion conversion mechanism 170 converts the rotary motion of the mold clamping motor 160 into the linear motion of the crosshead 151. The motion conversion mechanism 170 includes a lead screw shaft and a lead screw nut screwed to the lead screw shaft. Balls or rollers may be located between the lead screw shaft and the lead screw nut.

[0042] Under the control of the control device 700, the mold closing device 100 performs the mold closing process, the pressure raising process, the mold closing process, the pressure release process, and the mold opening process.

[0043] In the mold closing process, the mold closing motor 160 is driven to advance the crosshead 151 to the mold closing end position at a set speed, causing the movable pressure plate 120 to advance so that the moving mold 820 contacts the fixed mold 810. For example, a mold closing motor encoder 161 is used to detect the position and speed of the crosshead 151. The mold closing motor encoder 161 detects the rotation of the mold closing motor 160 and sends a signal indicating its detection result to the control device 700.

[0044] Furthermore, the crosshead position detector for detecting the position of the crosshead 151 and the crosshead movement speed detector for detecting the movement speed of the crosshead 151 are not limited to the mold clamping motor encoder 161; conventional detectors can be used. Similarly, the movable platen position detector for detecting the position of the movable platen 120 and the movable platen movement speed detector for detecting the movement speed of the movable platen 120 are not limited to the mold clamping motor encoder 161; conventional detectors can be used.

[0045] In the pressurization process, the mold clamping motor 160 is further driven to advance the crosshead 151 from the mold closing end position to the mold closing position, thereby generating a mold clamping force.

[0046] During the mold closing process, the mold closing motor 160 is driven to maintain the position of the crosshead 151 in the mold closing position. During the mold closing process, the mold closing force generated during the pressurization process is maintained. During the mold closing process, a cavity space 801 (see reference) is formed between the moving mold 820 and the fixed mold 810. Figure 2 The injection unit 300 fills the cavity space 801 with liquid molding material. The filled molding material is then cured to obtain a molded product.

[0047] The number of cavity spaces 801 can be one or more. In the latter case, multiple molded articles can be obtained simultaneously. An insert can be configured in a part of the cavity space 801, and the other part of the cavity space 801 can be filled with molding material. A molded article in which the insert and the molding material are integrated can be obtained.

[0048] During the depressurization process, the crosshead 151 is retracted from the mold-closing position to the mold-opening start position by driving the mold-closing motor 160, thereby causing the movable pressure plate 120 to retract and reducing the mold-closing force. The mold-opening start position and the mold-closing end position can be the same position.

[0049] In the mold opening process, the crosshead 151 is retracted from the mold opening start position to the mold opening end position at a set moving speed by driving the mold closing motor 160, causing the movable pressure plate 120 to retract, so that the moving mold 820 separates from the fixed mold 810. Then, the ejector device 200 ejects the molded product from the moving mold 820.

[0050] The setting conditions in the mold closing process, the pressure raising process, and the mold closing process are set uniformly as a series of setting conditions. For example, the moving speed, position (including the mold closing start position, moving speed switching position, mold closing end position, and mold closing position) and mold closing force of the crosshead 151 in the mold closing process and the pressure raising process are set uniformly as a series of setting conditions. The mold closing start position, moving speed switching position, mold closing end position, and mold closing position are arranged sequentially from back to front, and represent the start and end points of the range for setting the moving speed. The moving speed is set for each range. There can be one or more moving speed switching positions. The moving speed switching position can be omitted. Only the mold closing position and the mold closing force can be set.

[0051] The settings for the depressurization and mold opening processes are also set in the same way. For example, the moving speed and position (mold opening start position, moving speed switching position, and mold opening end position) of the crosshead 151 in the depressurization and mold opening processes are set uniformly as a series of settings. The mold opening start position, moving speed switching position, and mold opening end position are arranged sequentially from front to back, and represent the start and end points of the range for setting the moving speed. The moving speed is set for each range. There can be one or more moving speed switching positions. A moving speed switching position may not be set. The mold opening start position and the mold closing end position can be the same position. Furthermore, the mold opening end position and the mold closing start position can be the same position.

[0052] In addition, the moving speed and position of the movable pressure plate 120 can be set instead of the moving speed and position of the crosshead 151. Furthermore, the clamping force can be set instead of the position of the crosshead (e.g., the mold closing position) and the position of the movable pressure plate.

[0053] However, the toggle mechanism 150 amplifies the driving force of the clamping motor 160 and transmits it to the movable pressure plate 120. This amplification factor is also known as the toggle ratio. The toggle ratio varies depending on the angle θ (hereinafter also referred to as "link angle θ") formed by the first link 152 and the second link 153. The link angle θ is determined by the position of the crosshead 151. The toggle ratio reaches its maximum when the link angle θ is 180°.

[0054] When the thickness of the mold assembly 800 changes due to replacement of the mold assembly 800, temperature changes of the mold assembly 800, etc., mold thickness adjustment is performed to obtain the specified mold closing force during mold closing. In mold thickness adjustment, for example, the distance L between the fixed pressure plate 110 and the toggle seat 130 is adjusted so that the linkage angle θ of the toggle mechanism 150 becomes the specified angle at the moment when the moving mold 820 contacts the fixed mold 810.

[0055] The mold clamping device 100 includes a mold thickness adjustment mechanism 180. The mold thickness adjustment mechanism 180 adjusts the distance L between the fixed pressure plate 110 and the toggle seat 130, thereby adjusting the mold thickness. Furthermore, the timing of the mold thickness adjustment is performed, for example, during the period from the end of the molding cycle to the start of the next molding cycle. The mold thickness adjustment mechanism 180 includes, for example: a lead screw shaft 181 formed at the rear end of the connecting rod 140; a lead screw nut 182 held in the toggle seat 130 for free rotation and immobility; and a mold thickness adjustment motor 183 that rotates the lead screw nut 182 screwed to the lead screw shaft 181.

[0056] Each connecting rod 140 is provided with a lead screw shaft 181 and a lead screw nut 182. The rotational driving force of the die thickness adjustment motor 183 can be transmitted to multiple lead screw nuts 182 via the rotational driving force transmission unit 185. Multiple lead screw nuts 182 can be rotated synchronously. In addition, by changing the transmission path of the rotational driving force transmission unit 185, multiple lead screw nuts 182 can also be rotated individually.

[0057] The rotary drive force transmission unit 185 is composed of, for example, gears. In this case, driven gears are formed on the outer periphery of each lead screw nut 182, drive gears are mounted on the output shaft of the die thickness adjustment motor 183, and intermediate gears that mesh with multiple driven gears and drive gears are kept rotatably in the center of the toggle seat 130. Alternatively, instead of gears, the rotary drive force transmission unit 185 may also be composed of belts, pulleys, etc.

[0058] The operation of the die thickness adjustment mechanism 180 is controlled by the control device 700. The control device 700 drives the die thickness adjustment motor 183 to rotate the lead screw nut 182. As a result, the position of the toggle seat 130 relative to the connecting rod 140 is adjusted, and the distance L between the fixed pressure plate 110 and the toggle seat 130 is adjusted. Alternatively, multiple die thickness adjustment mechanisms can be used in combination.

[0059] The die thickness adjustment motor encoder 184 is used to detect the interval L. The die thickness adjustment motor encoder 184 detects the rotation amount and direction of the die thickness adjustment motor 183 and sends a signal indicating the detection result to the control device 700. The detection result of the die thickness adjustment motor encoder 184 is used to monitor and control the position and interval L of the toggle seat 130. However, the toggle seat position detector for detecting the position of the toggle seat 130 and the interval detector for detecting the interval L are not limited to the die thickness adjustment motor encoder 184; conventional detectors can be used.

[0060] The mold clamping device 100 may have a mold temperature regulator for adjusting the temperature of the mold assembly 800. The mold assembly 800 has a flow path for a temperature regulating medium inside it. The mold temperature regulator adjusts the temperature of the temperature regulating medium supplied to the flow path of the mold assembly 800, thereby regulating the temperature of the mold assembly 800.

[0061] In addition, the mold closing device 100 in this embodiment is a horizontal type with the mold opening and closing direction in the horizontal direction, but it can also be a vertical type with the mold opening and closing direction in the vertical direction.

[0062] Furthermore, the mold clamping device 100 of this embodiment has a mold clamping motor 160 as a drive source, but a hydraulic cylinder may be used instead of the mold clamping motor 160. Also, the mold clamping device 100 may have a linear motor for mold opening and closing, or it may have an electromagnet for mold clamping.

[0063] (Ejection device)

[0064] In the description of the ejector device 200, similar to the description of the mold closing device 100, the moving direction of the movable pressure plate 120 when the mold is closed (e.g., the positive X-axis direction) is set to forward, and the moving direction of the movable pressure plate 120 when the mold is opened (e.g., the negative X-axis direction) is set to rearward.

[0065] Ejection device 200 is mounted on movable pressure plate 120 and moves forward and backward together with movable pressure plate 120. Ejection device 200 includes: ejection rod 210 for ejecting molded article from mold device 800; and drive mechanism 220 for moving ejection rod 210 along the moving direction (X-axis direction) of movable pressure plate 120.

[0066] Ejector rod 210 is configured to move freely in and out of the through hole in movable pressure plate 120. The front end of ejector rod 210 contacts ejector plate 826 of moving mold 820. The front end of ejector rod 210 may or may not be connected to ejector plate 826.

[0067] The drive mechanism 220 includes, for example, an ejector motor and a motion conversion mechanism that converts the rotational motion of the ejector motor into the linear motion of the ejector rod 210. The motion conversion mechanism includes a lead screw and a lead screw nut screwed to the lead screw. Balls or rollers may be located between the lead screw and the lead screw nut.

[0068] The ejection device 200 performs the ejection process under the control of the control device 700. In the ejection process, the ejector rod 210 is moved forward from the standby position to the ejection position at a set speed, causing the ejector plate 826 to move forward and eject the molded product. Then, the ejection motor is driven to move the ejector rod 210 backward at a set speed, causing the ejector plate 826 to return to the original standby position.

[0069] For example, an ejector motor encoder is used to detect the position and speed of the ejector rod 210. The ejector motor encoder detects the rotation of the ejector motor and sends a signal indicating its detection result to the control device 700. In addition, the ejector rod position detector for detecting the position of the ejector rod 210 and the ejector rod speed detector for detecting the speed of the ejector rod 210 are not limited to the ejector motor encoder, and conventional detectors can be used.

[0070] (Injection device)

[0071] In the description of the injection device 300, unlike the description of the mold clamping device 100 and the description of the ejection device 200, the direction of movement of the screw 330 during filling (e.g., the negative X-axis direction) is set to forward, and the direction of movement of the screw 330 during metering (e.g., the positive X-axis direction) is set to rearward.

[0072] An injection unit 300 is mounted on a sliding base 301, which is configured to move freely forward and backward relative to the injection unit frame 920. The injection unit 300 is also configured to move freely forward and backward relative to the mold assembly 800. The injection unit 300 contacts the mold assembly 800 and fills the cavity space 801 within the mold assembly 800 with molding material metered in the cylinder 310. The injection unit 300 includes, for example, a cylinder 310 for heating the molding material, a nozzle 320 located at the front end of the cylinder 310, a screw 330 configured to move freely forward and backward and rotate freely within the cylinder 310, a metering motor 340 for rotating the screw 330, an injection motor 350 for moving the screw 330 forward and backward, and a load detector 360 for detecting the load transmitted between the injection motor 350 and the screw 330.

[0073] The cylinder body 310 heats the molding material supplied to it from the supply port 311. The molding material includes, for example, resin. The molding material is formed in granular form and supplied to the supply port 311 in a solid state. The supply port 311 is formed at the rear of the cylinder body 310. A cooler 312, such as a water-cooled cylinder, is provided on the outer periphery of the rear of the cylinder body 310. A heater 313, such as a belt heater, and a temperature detector 314 are provided on the outer periphery of the cylinder body 310, further forward than the cooler 312.

[0074] The cylinder block 310 is divided into multiple regions along its axial direction (e.g., the X-axis direction). A heater 313 and a temperature detector 314 are respectively installed in each of the multiple regions. A set temperature is set for each of the multiple regions, and the control device 700 controls the heater 313 so that the temperature detected by the temperature detector 314 becomes the set temperature.

[0075] The nozzle 320 is located at the front end of the cylinder 310 and presses against the mold assembly 800. A heater 313 and a temperature detector 314 are provided on the outer periphery of the nozzle 320. The control device 700 controls the heater 313 so that the detected temperature of the nozzle 320 becomes the set temperature.

[0076] The screw 330 is configured to rotate freely and move forward and backward within the cylinder 310. When the screw 330 is rotated, the molding material is conveyed forward along the spiral grooves of the screw 330. As the molding material is conveyed forward, it is gradually melted by heat from the cylinder 310. As the liquid molding material is conveyed forward and accumulates at the front of the cylinder 310, the screw 330 retracts. Then, when the screw 330 is moved forward, the liquid molding material accumulated at the front of the screw 330 is injected from the nozzle 320 and fills the mold assembly 800.

[0077] The check ring 331 is installed at the front of the screw 330 so that it can move freely forward and backward. The check ring 331 acts as a check valve to prevent the molding material from flowing backward from the front of the screw 330 when the screw 330 is pushed forward.

[0078] When the screw 330 is advanced, the check ring 331 is pushed backward by the pressure of the molding material in front of the screw 330, and retracts relative to the screw 330 to a closed position that blocks the flow path of the molding material (see reference). Figure 2 This prevents the molding material accumulated in front of the screw 330 from flowing backward.

[0079] On the other hand, when the screw 330 is rotated, the check ring 331 is pushed forward by the pressure of the molding material being conveyed forward along the spiral groove of the screw 330, and advances relative to the screw 330 to the open position where the flow path of the molding material is opened (see reference). Figure 1 Thus, the molding material is conveyed to the front of the screw 330.

[0080] The check ring 331 can be either a cotransformer that rotates with the screw 330 or a non-cotransformer that does not rotate with the screw 330.

[0081] Additionally, the injection device 300 may have a drive source that moves the check ring 331 back and forth relative to the screw 330 between an open position and a closed position.

[0082] The metering motor 340 rotates the screw 330. The drive source for rotating the screw 330 is not limited to the metering motor 340; for example, it could be a hydraulic pump.

[0083] The injection motor 350 moves the screw 330 forward and backward. A motion conversion mechanism is provided between the injection motor 350 and the screw 330 to convert the rotational motion of the injection motor 350 into the linear motion of the screw 330. This motion conversion mechanism may include, for example, a lead screw shaft and a lead screw nut screwed to the lead screw shaft. Ball bearings, rollers, etc., may be provided between the lead screw shaft and the lead screw nut. The drive source for moving the screw 330 forward and backward is not limited to the injection motor 350; for example, it may be a hydraulic cylinder.

[0084] Load detector 360 detects the load transmitted between injection motor 350 and screw 330. The detected load is converted into pressure by control device 700. Load detector 360 is positioned along the load transmission path between injection motor 350 and screw 330, and detects the load acting on load detector 360.

[0085] The load detector 360 sends the detected load signal to the control device 700. The load detected by the load detector 360 is converted into the pressure acting between the screw 330 and the molding material, and is used to control and monitor the pressure on the screw 330 from the molding material, the back pressure on the screw 330, and the pressure acting on the molding material from the screw 330.

[0086] Furthermore, the pressure detector for detecting the pressure of the molding material is not limited to the load detector 360; conventional detectors can be used. For example, a nozzle pressure sensor or a mold pressure sensor can be used. The nozzle pressure sensor is located at the nozzle 320. The mold pressure sensor is located inside the mold assembly 800.

[0087] The injection unit 300 performs metering, filling, and pressure holding processes under the control of the control unit 700. The filling and pressure holding processes can be collectively referred to as the injection process.

[0088] In the metering process, the metering motor 340 drives the screw 330 to rotate at a set speed, conveying the molding material forward along the spiral grooves of the screw 330. As a result, the molding material is gradually melted. As the molten molding material is conveyed forward of the screw 330 and accumulates at the front of the cylinder 310, the screw 330 retracts. For example, a metering motor encoder 341 is used to detect the rotational speed of the screw 330. The metering motor encoder 341 detects the rotation of the metering motor 340 and sends a signal indicating its detection result to the control device 700. However, the screw speed detector for detecting the rotational speed of the screw 330 is not limited to the metering motor encoder 341; conventional detectors can be used.

[0089] In the metering process, to limit the rapid retraction of the screw 330, the injection motor 350 can be driven to apply a set back pressure to the screw 330. For example, a load detector 360 can be used to detect the back pressure on the screw 330. If the screw 330 retracts to the metering end position and a specified amount of molding material accumulates in front of the screw 330, the metering process ends.

[0090] The position and speed of the screw 330 in the metering process are uniformly set as a series of preset conditions. For example, the metering start position, speed switching position, and metering end position are set. These positions are arranged sequentially from front to back and represent the start and end points of the set speed interval. The speed is set for each interval. There can be one or more speed switching positions. Alternatively, no speed switching position can be set. Furthermore, the back pressure is set for each interval.

[0091] In the filling process, the injection motor 350 is driven to advance the screw 330 at a set speed, filling the cavity space 801 within the mold assembly 800 with the liquid molding material accumulated in front of the screw 330. For example, an injection motor encoder 351 is used to detect the position and speed of the screw 330. The injection motor encoder 351 detects the rotation of the injection motor 350 and sends a signal indicating its detection result to the control device 700. If the screw 330 reaches the set position, a switch is made from the filling process to the holding pressure process (so-called V / P switching). The position where the V / P switching occurs is also called the V / P switching position. The set speed of the screw 330 can be changed according to the position of the screw 330, time, etc.

[0092] The position and moving speed of the screw 330 in the filling process are uniformly set as a series of preset conditions. For example, the filling start position (also called the "injection start position"), the moving speed switching position, and the V / P switching position are set. These positions are arranged sequentially from back to front and represent the start and end points of the set moving speed interval. The moving speed is set for each interval. There can be one or more moving speed switching positions. It is also possible not to set any moving speed switching positions.

[0093] The upper limit of the pressure of the screw 330 is set for each range of the screw 330's moving speed. The pressure of the screw 330 is detected by the load detector 360. When the pressure of the screw 330 is below the set pressure, the screw 330 moves forward at the set moving speed. On the other hand, when the pressure of the screw 330 exceeds the set pressure, in order to protect the mold, the screw 330 moves forward at a slower moving speed than the set moving speed, so that the pressure of the screw 330 falls below the set pressure.

[0094] Furthermore, during the filling process, after the screw 330 reaches the V / P switching position, it can be paused at the V / P switching position before the V / P switch is performed. Alternatively, instead of stopping the screw 330, it can be moved forward or backward at a slight speed before the V / P switch is about to occur. Moreover, the screw position detector for detecting the position of the screw 330 and the screw speed detector for detecting the movement speed of the screw 330 are not limited to the injection motor encoder 351; conventional detectors can be used.

[0095] During the holding pressure process, the injection motor 350 pushes the screw 330 forward, maintaining the pressure of the molding material at the front end of the screw 330 (hereinafter also referred to as "holding pressure") at a set pressure, and pushing the remaining molding material in the cylinder 310 towards the mold assembly 800. This replenishes any insufficient molding material in the mold assembly 800 due to cooling shrinkage. For example, a load detector 360 is used to detect the holding pressure. The set value of the holding pressure can be changed according to the elapsed time since the start of the holding pressure process. The holding pressure and the holding time for each of the multiple holding pressure processes can be set separately, or they can be set uniformly as a series of setting conditions.

[0096] During the holding pressure process, the molding material in the cavity space 801 within the mold assembly 800 is gradually cooled. At the end of the holding pressure process, the inlet of the cavity space 801 is blocked by the solidified molding material. This state is called gate sealing, which prevents the backflow of molding material from the cavity space 801. After the holding pressure process, the cooling process begins. During the cooling process, the molding material within the cavity space 801 solidifies. To shorten the molding cycle time, a metering process can be performed during the cooling process.

[0097] Furthermore, the injection device 300 in this embodiment is a coaxial screw type, but it can also be a pre-plasticizing type, etc. In a pre-plasticizing type injection device, molten molding material in a plasticizing cylinder is supplied to the injection cylinder, and the molding material is injected from the injection cylinder into the mold device. In the plasticizing cylinder, the screw is configured to rotate freely but not retract, or the screw is configured to rotate freely and retract freely. On the other hand, in the injection cylinder, the plunger is configured to retract freely.

[0098] Furthermore, the injection device 300 in this embodiment is horizontal with the cylinder 310's axis in the horizontal direction, but it can also be vertical with the cylinder 310's axis in the vertical direction. The mold clamping device combined with the vertical injection device 300 can be either vertical or horizontal. Similarly, the mold clamping device combined with the horizontal injection device 300 can be either horizontal or vertical.

[0099] (Mobile device)

[0100] In the description of the moving device 400, similarly to the description of the injection device 300, the direction of movement of the screw 330 during filling (e.g., the negative X-axis direction) is set to forward, and the direction of movement of the screw 330 during metering (e.g., the positive X-axis direction) is set to rearward.

[0101] The moving device 400 causes the injection device 300 to move forward and backward relative to the mold device 800. Furthermore, the moving device 400 presses the nozzle 320 relative to the mold device 800 to generate nozzle contact pressure. The moving device 400 includes a hydraulic pump 410, a motor 420 as a drive source, and a hydraulic cylinder 430 as a hydraulic actuator.

[0102] The hydraulic pump 410 has a first port 411 and a second port 412. The hydraulic pump 410 is a bidirectional rotating pump, generating hydraulic pressure by switching the rotation direction of the motor 420, drawing in working fluid (e.g., oil) from either the first port 411 or the second port 412 and discharging it from the other port. Alternatively, the hydraulic pump 410 can also draw working fluid from a tank and discharge working fluid from either the first port 411 or the second port 412.

[0103] Motor 420 operates hydraulic pump 410. Motor 420 drives hydraulic pump 410 by means of rotational direction and rotational torque corresponding to control signals from control device 700. Motor 420 can be an electric motor or an electric servo motor.

[0104] The hydraulic cylinder 430 has a cylinder body 431, a piston 432, and a piston rod 433. The cylinder body 431 is fixed relative to the injection device 300. The piston 432 divides the interior of the cylinder body 431 into a front chamber 435, which serves as a first chamber, and a rear chamber 436, which serves as a second chamber. The piston rod 433 is fixed relative to the fixed pressure plate 110.

[0105] The front chamber 435 of the hydraulic cylinder 430 is connected to the first port 411 of the hydraulic pump 410 via a first flow path 401. Working fluid ejected from the first port 411 is supplied to the front chamber 435 via the first flow path 401, thereby propelling the injection device 300 forward. As the injection device 300 advances, the nozzle 320 is pressed against the fixed mold 810. The front chamber 435 functions as a pressure chamber, generating the nozzle contact pressure of the nozzle 320 through the pressure of the working fluid supplied from the hydraulic pump 410.

[0106] On the other hand, the rear chamber 436 of the hydraulic cylinder 430 is connected to the second port 412 of the hydraulic pump 410 via the second flow path 402. The working fluid ejected from the second port 412 is supplied to the rear chamber 436 of the hydraulic cylinder 430 via the second flow path 402, thereby pushing the injection device 300 backward. The injection device 300 retracts and the nozzle 320 separates from the fixed mold 810.

[0107] In addition, in this embodiment, the moving device 400 includes a hydraulic cylinder 430, but the present invention is not limited thereto. For example, instead of the hydraulic cylinder 430, an electric motor and a motion conversion mechanism that converts the rotational motion of the electric motor into the linear motion of the injection device 300 may also be used.

[0108] (Control device)

[0109] The control device 700 is, for example, composed of a computer, such as Figures 1-2 As shown, the device includes a CPU (Central Processing Unit) 701, a storage medium 702 such as a memory, an input interface 703, and an output interface 704. The control device 700 performs various controls by causing the CPU 701 to execute programs stored in the storage medium 702. Furthermore, the control device 700 receives signals from external sources through the input interface 703 and sends signals to external sources through the output interface 704. Moreover, the control device 700 can send and receive information with an information processing device (e.g., a personal computer) connected via a network through a communication interface (not shown).

[0110] The control device 700 repeatedly manufactures molded products by repeatedly performing metering, mold closing, pressurizing, mold closing, filling, pressure holding, cooling, depressurizing, mold opening, and ejection processes. The series of actions used to obtain the molded product, such as the actions from the start of the metering process to the start of the next metering process, is also called "material injection" or "molding cycle." Furthermore, the time required for one material injection is also called "molding cycle time" or "cycle time."

[0111] A typical molding cycle may include, for example, the following steps in sequence: metering, mold closing, pressure increase, mold closing, filling, pressure holding, cooling, pressure release, mold opening, and ejection. This sequence refers to the order in which each step begins. The filling, pressure holding, and cooling steps occur during the mold closing step. Alternatively, the start of the mold closing step can coincide with the start of the filling step. The end of the pressure release step can coincide with the start of the mold opening step.

[0112] Furthermore, to shorten the molding cycle time, multiple processes can be performed simultaneously. For example, the metering process can be performed during the cooling process of the previous molding cycle or during the mold closing process. In this case, the mold closing process can be set to be performed at the very beginning of the molding cycle. The filling process can also begin during the mold closing process. The ejection process can begin during the mold opening process. When an on / off valve is provided for the flow path of the nozzle 320, the mold opening process can begin during the metering process. This is because even if the mold opening process begins during the metering process, as long as the on / off valve closes the flow path of the nozzle 320, the molding material will not leak from the nozzle 320.

[0113] In addition, a single molding cycle can include processes other than metering, mold closing, pressurization, mold closing, filling, pressure holding, cooling, depressurization, mold opening, and ejection.

[0114] For example, a pre-metering backfeeding process can be performed after the pressure holding process ends and before the metering process begins, causing the screw 330 to retract to a pre-set metering start position. This reduces the pressure of the molding material accumulated in front of the screw 330 before the metering process begins, thus preventing the screw 330 from retracting abruptly when the metering process begins.

[0115] Furthermore, a post-metering back suction process can be performed after the metering process is completed and before the filling process begins, retracting the screw 330 to a pre-set filling start position (also known as the "injection start position"). This reduces the pressure of the molding material accumulated in front of the screw 330 before the filling process begins, thus preventing leakage of the molding material from the nozzle 320 before the filling process begins.

[0116] The control device 700 is connected to the operation device 750, which receives user input, and the display device 760, which displays a screen. The operation device 750 and the display device 760 are, for example, composed of a touch panel 770, and can be integrated. The touch panel 770, as the display device 760, displays a screen under the control of the control device 700. Information such as the settings of the injection molding machine 10 and the current status of the injection molding machine 10 can be displayed on the screen of the touch panel 770. Furthermore, operation sections such as buttons and input fields for receiving user input can be displayed on the screen of the touch panel 770. The touch panel 770, as the operation device 750, detects user input on the screen and outputs a signal corresponding to the input operation to the control device 700. Thus, for example, the user can simultaneously check the information displayed on the screen and operate the operation sections on the screen to set the injection molding machine 10 (including inputting setting values). Furthermore, by operating the operation sections on the screen, the user can cause the injection molding machine 10 corresponding to the operation sections to operate. Furthermore, the operation of the injection molding machine 10 can include, for example, the operation (including stopping) of the mold clamping device 100, the ejection device 200, the injection device 300, the moving device 400, etc. Also, the operation of the injection molding machine 10 can include switching the screen displayed on the touch panel 770, which is a display device 760.

[0117] Furthermore, while the operation device 750 and display device 760 of this embodiment are integrated into a touch panel 770, they can also be provided independently. Additionally, multiple operation devices 750 can be provided. The operation device 750 and display device 760 are disposed on the operation side (negative Y-axis direction) of the mold clamping device 100 (more specifically, the fixed pressure plate 110).

[0118] (First Embodiment)

[0119] Figure 3 This is a diagram showing the components of the control device 700 according to the first embodiment using function blocks. Figure 3 The functional blocks illustrated are conceptual and do not necessarily need to be physically configured as shown. All or part of each functional block can be functionally or physically distributed / integrated in any unit. All or any part of the processing functions performed in each functional block are implemented through a program executed by the CPU701. Alternatively, each functional block can be implemented as hardware based on wiring logic. Figure 3 As shown, the control device 700 includes a receiving unit 712, an output unit 713, and an updating unit 714. Furthermore, the control device 700 includes a process-corresponding information storage unit 711 in the storage medium 702.

[0120] The process-related information storage unit 711 stores information related to the project that is associated with the process. Figure 4 This is a diagram illustrating the data table structure of the process-corresponding information storage unit 711 involved in this embodiment. For example... Figure 4 As shown, the process corresponding information storage unit 711 in this embodiment establishes a corresponding association with the information related to the item displayed when the process is selected and stores it for each process. Figure 4 The process correspondence information storage unit 711 shown is an example of establishing a correspondence association for the displayed items according to each process. Furthermore, the process correspondence information storage unit 711 stores scale information for displaying the item, as information related to the item. In this embodiment, the process correspondence information storage unit 711 establishes correspondence associations based on scale information, including the maximum and minimum values ​​displayed for each item.

[0121] In this embodiment, the item is information about the process displayed as waveform data (an example of display information), which is setting information indicating the process settings or information indicating the actual value detected in the process.

[0122] exist Figure 4In the example shown, the "Fill Start" step includes settings for the items displayed when this step is selected. Within the "Fill Start" step, "Item 1" includes "Injection Speed ​​Setting," "Item 2" includes "Injection Speed ​​Detection," and "Item 3" includes "Holding Pressure Setting." Although in Figure 4 The details are omitted, but the items displayed when this process is selected are also set in "Item 4" and "Item 5". This information is distributed to the item columns of the channel bar, which will be described later.

[0123] Furthermore, in the process-corresponding information storage unit 711 according to this embodiment, corresponding scale information for displaying the item is established. For example, the scale information for "injection speed setting" as "item 1" is set to "100.00" as "maximum value (item 1)" and to "-100.00" as "minimum value (item 1)". Similarly, in "Ch-2" to "Ch-5", maximum and minimum values ​​are set as scale information. This information is distributed to the maximum value column and minimum value column of the channel bar, which will be described later.

[0124] Return to Figure 3 The receiving unit 712 receives user operations from the operating device 750 via the input interface 703.

[0125] The output unit 713 outputs display screen and other data to the display device 760. In this embodiment, the output unit 713 outputs a display screen to the display device 760 for each step of the molding process of the injection molding machine 10. This display screen includes setting information set by the user in that step or waveform data (an example of display information) representing changes in actual values ​​in that step. Furthermore, while this embodiment describes an example of outputting display screens to the display device 760, the data output destination is not limited to the display device 760. For example, the output unit 713 can output display screens and other data to an information processing device connected via a network.

[0126] Figure 5 This diagram illustrates the display screen output by the output unit 713 in this embodiment. Figure 5 As shown, the display screen 1500 displays an X-axis unit bar 1501, a Y-axis unit bar 1502, a left slider 1503, a right slider 1504, an X-axis bar 1505, and a trigger (CH1-5) bar 1506. Furthermore, the display screen 1500 also displays five channel bars (channel bar 1511 to channel bar 1515), a selection range display bar 1521, and a waveform data bar 1550. In this embodiment, the channel bars are used to select the displayed item.

[0127] exist Figure 5The display screen shown shows the settings for each injection of the injection molding machine 10 and the actual values ​​detected by various sensors. In this embodiment, the display screen can also display the current actual injection value in real time.

[0128] Figure 5 The receiving unit 712 shown receives selection or input operations for the aforementioned column via the operating device 750. Furthermore, the output unit 713 switches the display screen (e.g., waveform data column 1550) on the display device 760 according to the received selection or input operation.

[0129] For example, the receiving unit 712 receives selection operations on the X-axis unit column 1501, Y-axis unit column 1502, and X-axis column 1505 via the operating device 750. The output unit 713 switches the displayed waveform data column 1550 according to the received selection operation.

[0130] X-axis unit column 1501 is used to select the unit of the X-axis displayed in waveform data column 1550. Y-axis unit column 1502 is used to select the unit of the Y-axis displayed in waveform data column 1550. Y-axis unit column 1502 can select, for example, "percentage" or "mechanical units". X-axis column 1505 is used to set the range of the X-axis (e.g., time) displayed in waveform data column 1550.

[0131] The left slider 1503 is used to set the left end (display start position) of the waveform data bar 1550 on the X-axis in order to set the range to be displayed in the selection range display bar 1521. The right slider 1504 is used to set the right end (display end position) of the waveform data bar 1550 on the X-axis in order to set the range to be displayed in the selection range display bar 1521.

[0132] The trigger (CH1-5) column 1506 is a column for selecting the process to be displayed in the waveform data column 1550. In this embodiment, the trigger (CH1-5) column 1506 is, for example, a menu format, and the user selects the desired process from the menu displayed in the trigger (CH1-5) column 1506 via the operation device 750.

[0133] exist Figure 5 In the example, in trigger (CH1-5) column 1506, the "fill start" option is set as the selection operation. Figure 5 In the example shown, the output unit 713 outputs a display screen of waveform data column 1550 in the process "fill start", which shows waveform data of each item set by five channel columns (channel column 1511 to channel column 515).

[0134] The five channel columns (channel 1 column 1511 to channel 5 column 1515) are used to select the items that will be displayed as waveform data in the waveform data column 1550. That is, in this embodiment, five waveform data items related to the items assigned to each channel can be displayed in the waveform data column 1550.

[0135] Channel 1, column 1511, is used to set items in Ch-1. Item column 1511A sets the items to be displayed, maximum value column 1511B sets the display of Ch-1 items to the maximum value of waveform data (an example of scale information), and minimum value column 1511C sets the display of Ch-1 items to the minimum value of waveform data (an example of scale information).

[0136] When item bar 1511A is pressed via operating device 750 (e.g., touch panel 770), output unit 713 outputs a menu screen displaying multiple items. Then, receiving unit 712 receives the selection of the item to be set in Ch-1 from the menu screen. The same applies to item bars 1512A to 1515A, so descriptions are omitted.

[0137] The maximum value field 1511B and the minimum value field 1511C are fields where numerical values ​​can be input. Furthermore, the receiving unit 712 receives the input of the value set in the maximum value field 1511B or the minimum value field 1511C via the operation device 750. The same applies to the maximum value fields 1512B to 1515B and the minimum value fields 15112C to 1515C, therefore, a description of these fields is omitted.

[0138] The display options in each channel column can be set to "In" or "Cut". "In" indicates that the waveform data for that item is displayed, while "Cut" indicates that the waveform data for that item is not displayed.

[0139] exist Figure 5 In the example, "Injection Speed ​​Setting" is set in item column 1511A, "100.00" is set in maximum value column 1511B, and "-100.00" is set in minimum value column 1511C. "Injection Speed ​​Setting" refers to the injection speed setting of the screw 330 set by the user.

[0140] Channel 2, column 1512, is used to set items in Ch-2. Item column 1512A sets the items to be displayed, maximum value column 1512B sets the display of Ch-2 items to the maximum value of waveform data (an example of scale information), and minimum value column 1512C sets the display of Ch-2 items to the minimum value of waveform data (an example of scale information).

[0141] exist Figure 5In the example shown, "Injection Speed ​​Detection" is set in item column 1512A, "100.00" is set in maximum value column 1512B, and "-100.00" is set in minimum value column 1512C. "Injection Speed ​​Detection" refers to the injection speed of the screw 330 detected by the injection motor encoder 351.

[0142] Channel 3, column 1513, is used to set items in Ch-3. Item column 1513A sets the items to be displayed, maximum value column 1513B sets the Ch-3 item to the maximum value of the waveform data (an example of scale information), and minimum value column 1513C sets the Ch-3 item to the minimum value of the waveform data (an example of scale information).

[0143] exist Figure 5 Here's an example where "Pressure Holding Setting" is set in item column 1513A, "200.00" is set in maximum value column 1513B, and "0.00" is set in minimum value column 1513C. "Pressure Holding Setting" represents the value of the holding pressure set by the user.

[0144] Channel 4, column 1514, is used to set items in Ch-4. Item column 1514A sets the items to be displayed, maximum value column 1514B sets the Ch-4 item to the maximum value of the waveform data (an example of scale information), and minimum value column 1514C sets the Ch-4 item to the minimum value of the waveform data (an example of scale information).

[0145] exist Figure 5 In the example, "Pressure Holding Test" is set in Project 1514A, "200.00" is set in Maximum Value 1514B, and "0.00" is set in Minimum Value 1514C. "Pressure Holding Test" refers to the value of the holding pressure detected by the load detector 360.

[0146] Channel 5, column 1515, is used to set items in Ch-5. Item column 1515A sets the items to be displayed, maximum value column 1515B sets the Ch-5 item to the maximum value of the waveform data (an example of scale information), and minimum value column 1515C sets the Ch-5 item to the minimum value of the waveform data (an example of scale information).

[0147] exist Figure 5 Here's an example where "Screw Position Detection" is set in Project 1515A, "100.00" is set in Maximum Value 1515B, and "0.00" is set in Minimum Value 1515C. "Screw Position Detection" indicates the position of the screw 330 detected by the injection motor encoder 351.

[0148] Figure 5 The waveform data column 1550 is set to display waveform data in which the setting information or actual value changes shown in the items set in the five channel columns (channel 1 column 1511 to channel 5 column 1515) are displayed in waveform form during the process selected by trigger (CH1-5) column 1506.

[0149] Waveform data 1551 in waveform data column 1550 indicates the change in the setting information of "injection speed setting" set in channel 1 column 1511 (Ch-1).

[0150] The maximum value of the waveform data column 1550 used to display waveform data 1551 is set in the maximum value column 1511B, and the minimum value of the waveform data column 1550 used to display waveform data 1551 is set in the minimum value column 1511C. The maximum and minimum values ​​for the waveform data displayed in the waveform data column 1550 will remain the same thereafter, so further explanation is omitted.

[0151] Waveform data 1552 represents the change in the detection result (an example of the actual value) of "Injection Speed ​​Detection" set in Channel 2 column 1512 (Ch-2).

[0152] Waveform data 1553 indicates a change in the setting information of "Pressure Holding Setting" in channel 3, column 1513 (Ch-3). Waveform data 1554 indicates a change in the detection result (an example of the actual value) of "Pressure Holding Detection" in channel 4, column 1514 (Ch-4).

[0153] Waveform data 1555 indicates the change in the detection result (an example of the actual value) of "Screw Position Detection" set in channel 5 column 1515 (Ch-5).

[0154] Furthermore, the receiving unit 712 in this embodiment receives the selection of items in the item columns 1511A to 1515A of each channel column as information for displaying the process selected by triggering the (CH1-5) column 1506.

[0155] Furthermore, when the receiving unit 712 receives the selection of an item, the output unit 713 displays the waveform data indicating the change in the setting information or detection result of the selected item in the waveform data column 1550.

[0156] Furthermore, the receiving unit 712 receives input operations for the values ​​of the left slider 1503 (the start value on the left side of the X-axis of the waveform data column 1550) and the right slider 1504 (the end value on the right side of the X-axis of the waveform data column 1550) via the operation device 750.

[0157] The selection range display bar 1521 is a bar that displays the statistical values, start values, and end values ​​of each item set in each channel bar within the range set by the left slider 1503 and the right slider 1504.

[0158] exist Figure 5 The selection range display bar 1521 shows statistical values ​​for items set in each channel (Ch-1 to Ch-5), such as the start value (Left), maximum value (Max), integral value (Int), average value (Ave), minimum value (Min), and end value (Right). Furthermore, the statistical values ​​for each item shown in the selection range display bar 1521 are examples; other statistical values ​​can be displayed.

[0159] The trigger (CH1-5) column 1506 is used to select the process to be displayed in the waveform data column 1550. In this embodiment, the trigger (CH1-5) column 1506 is configured as a menu. The receiving unit 712 receives the operation of selecting the desired process from the multiple processes shown in the menu screen via the operation device 750.

[0160] When a process selection operation is received, the output unit 713 of this embodiment outputs waveform data of the selected item in the item column 1511A to 1515A of the process set by triggering the (CH1-5) column 1506 and displays it on the display screen of the waveform data column 1550.

[0161] exist Figure 5 In the example shown, "Fill Start" is selected (set) in trigger (CH1-5) column 1506. Figure 5 In the example shown, during the "fill start" process, the output unit 713 outputs waveform data of each item set in the five channel columns (channel column 1511 to channel column 515) to the display screen of the waveform data column 1550.

[0162] After changing the process displayed on the screen, the user needs to select the displayed item from item columns 1511A to 1515A in order to display the desired waveform data. When the user performs this selection operation, the operational burden increases. Therefore, when the receiving unit 712 receives the process selection operation, the control device 700 according to this embodiment can automatically switch the item corresponding to the process according to the user's request.

[0163] Figure 6 This is a diagram showing the pop-up screen output by the output unit 713 when a change operation of the process triggered by column (CH1-5) 1506 is received.

[0164] When the receiving unit 712 receives the selected process, the output unit 713 according to this embodiment outputs a pop-up screen asking whether to switch to an item pre-associated with the selected process (an example of a query display information). Figure 6 In the example shown, after the receiving unit 712 receives the selection operation of the process "mold closing start" set in the trigger (CH1-5) column 1611, the output unit 713 displays the pop-up screen 1600.

[0165] In this embodiment, an example of switching from the "filling start" process to the "mold closing start" process will be described. Furthermore, the process for switching to other processes is the same as the case of switching from the "filling start" process to the "mold closing start" process, and therefore will not be described.

[0166] In the pop-up screen 1600, there are "Yes" button 1601 and "No" button 1602.

[0167] When the receiving unit 712 receives the selection operation of the "No" button 1602, the output unit 713 does not change the items set in the five channel columns (channel column 1511 to channel column 5515). That is, the output unit 713 outputs the display screen of the waveform data column that was set in the previous process "filling start" and includes the waveform data of the changed process "mold closing start".

[0168] On the other hand, when the receiving unit 712 receives the selection operation of the "Yes" button 1601, the output unit 713, based on the fact that the five channel bars (channel bar 1511 to channel bar 5515) are respectively switched to the items that are associated with the process "mold closing start", outputs the display screen of the waveform data bar in the changed process "mold closing start" which includes the waveform data of each item.

[0169] The items associated with the process "mold closing start" are stored in the process corresponding information storage unit 711. Therefore, the output unit 713 can read the items associated with the process "mold closing start" by referring to the process corresponding information storage unit 711, and can set the items that are pre-associated with the process.

[0170] In other words, when the receiving unit 712 receives the selection of the automatic switching item, the output unit 713 outputs a display screen that includes waveform data of the item that is pre-associated with the selected process in the process correspondence information storage unit 711.

[0171] Figure 7 This diagram illustrates the display screen output by the output unit 713 in this embodiment. Figure 7 In the displayed screen 1700, regarding... Figure 5The same symbols are assigned to the same columns in the 1500-page display, and the descriptions are omitted.

[0172] exist Figure 7 In the example shown, the trigger (CH1-5) bar 1611, the five channel bars (channel 1 bar 1711 to channel 5 bar 1715), the selection range display bar 1721, and the waveform data bar 1750 are updated.

[0173] exist Figure 7 In the trigger (CH1-5) column 1506, the user-selected process "Metering Start" is displayed. The five channel columns (Channel 1 1711 to Channel 5 1715) are switched to items that are pre-associated with the process "Mold Closure Start".

[0174] Here's an example where "Rotation Setting" is set in item column 1711A, "100.00" is set in maximum value column 1711B, and "-100.00" is set in minimum value column 1711C. "Rotation Setting" indicates the setting of the rotation speed of screw 330.

[0175] Here's an example where "Rotation Detection" is set in item column 1712A, "100.00" is set in maximum value column 1712B, and "-100.00" is set in minimum value column 1712C. "Rotation Detection" refers to the rotational speed of the screw 330 detected by the metering motor encoder 341.

[0176] Here's an example where "Back Pressure Setting" is set in item column 1713A, "25.00" is set in maximum value column 1713B, and "0.00" is set in minimum value column 1713C. "Back Pressure Setting" refers to the setting of the back pressure relative to screw 330.

[0177] Here's an example where "Back Pressure Detection" is set in Project 1714A, "25.00" is set in Maximum Value 1714B, and "0.00" is set in Minimum Value 1714C. "Back Pressure Detection" refers to the back pressure relative to the screw 330 detected by the load detector 360.

[0178] This example shows a setting where "Screw Position Detection" is configured in Project 1715A, "100.00" is configured in Maximum Value 1715B, and "0.00" is configured in Minimum Value 1715C. "Screw Position Detection" indicates the position of the screw 330 detected by the injection motor encoder 351.

[0179] Figure 7The waveform data column 1750 is set to display waveform data (an example of waveform information) in the "Metering Start" process changed in the trigger (CH1-5) column 1611, which represents the changes in setting information or actual values ​​shown in the items set in the five channel columns (Channel 1 column 1711 to Channel 5 column 1715).

[0180] Waveform data 1751 in waveform data column 1750 represents the setting information for "Rotation Setting" set in channel 1 column 1711 (Ch-1). Waveform data 1752 represents the change in the detection result (an example of the actual value) of "Rotation Detection" set in channel 2 column 1712 (Ch-2).

[0181] Waveform data 1753 represents the setting information for "Back Pressure Setting" in channel 3, column 1713 (Ch-3). Waveform data 1754 represents the change in the detection result (an example of the actual value) of "Back Pressure Detection" in channel 4, column 1714 (Ch-4).

[0182] Waveform data 1755 represents the change in the detection result (an example of the actual value) of "Screw Position Detection" set in channel 5 column 1715 (Ch-5).

[0183] The selection range display bar 1721 displays the starting value (Left), maximum value (Max), integral value (Int), average value (Ave), minimum value (Min), and ending value (Right) of the items set in each channel (Ch-1 to Ch-5).

[0184] In order to carry out such Figure 7 Automatic updates for items like those shown, in Figure 6 When the "Yes" button 1601 is pressed, the output unit 713 reads information related to the item associated with the "Measuring Start" process from the process corresponding information storage unit 711. In addition to the information used to determine the "item" (e.g., name), the information related to the item also includes scale information (the maximum and minimum values ​​displayed in the waveform data column 1750), but other information can also be read.

[0185] Furthermore, the output unit 713 generates and outputs data based on the read project-related information, the setting information of each project stored in the storage medium 702, and the actual values ​​of that project received from various sensors. Figure 7 The display screen shown is shown. Furthermore, this embodiment describes an example of automatically switching items based on the information stored in the process-corresponding information storage unit 711, but other methods are also possible.

[0186] Therefore, when the receiving unit 712 receives the selection of a process, the output unit 713 according to this embodiment outputs a display screen to the display device 760, which includes waveform data showing the changes in setting information or actual values ​​of the multiple selectable items that are pre-associated with the selected process.

[0187] Furthermore, when displaying waveform data for each item, the output unit 713 outputs a display screen of the waveform data according to the scale information (maximum value of Y-axis and minimum value of Y-axis) pre-stored in the process corresponding information storage unit 711, as the range of setting information or actual value displayed for the item.

[0188] Furthermore, in the control device 700 of this embodiment, it is possible to change items that are pre-established to correspond with the process.

[0189] The update unit 714 updates items that are pre-established with the corresponding process according to the operation received by the operating device 750.

[0190] For example, the receiving unit 712 receives the operation of changing the items that are pre-associated with the process. Then, the updating unit 714 updates the process correspondence information storage unit 711 with the items that are pre-associated with the changed process.

[0191] As described above, when the receiving unit 712 receives a process selection, the output unit 713 outputs a display screen to the process corresponding information storage unit 711, which includes waveform data of items pre-established with a corresponding association with that process. Thus, the output unit 713 can output a display screen that includes waveform data of items pre-established with a corresponding association with the process, depending on the operation.

[0192] Next, the processing sequence performed when the selection of the process is received in the control device 700 according to the first embodiment will be described. Figure 8 This is a flowchart illustrating the control performed in the control device 700 according to the first embodiment when a process selection is received.

[0193] First, the output unit 713 of the control device 700 outputs the display screen, which includes the waveform data column displaying waveform data of each item in any process, to the display device 760 (step S1801).

[0194] Next, the receiving unit 712 determines whether the operation selection operation shown in the trigger (CH1-5) column has been received from the operating device 750 (step S1802). If it is determined that no selection operation has been received (step S1802: "No"), the process of step S1802 is repeated again.

[0195] On the other hand, when it is determined that the receiving unit 712 has received the process selection operation (step S1802: "Yes"), the output unit 713 outputs a pop-up screen to confirm whether to switch automatically (step S1803).

[0196] Next, the receiving unit 712 displays a pop-up screen (for example, Figure 6 In the pop-up screen 1600 shown, it is determined whether the selection of automatic item switching has been received (step S1804).

[0197] When it is determined that the receiving unit 712 has not received the selection of the automatic switching item (the "No" button 1602 has been pressed) (step S1804: "No"), the output unit 713 does not switch items but outputs a display screen including a waveform data bar displaying waveform data of each item in the selected process (step S1805).

[0198] On the other hand, when it is determined that the receiving unit 712 has received the selection of the automatic switching item (the "Yes" button 1601 has been pressed) (1804: "Yes"), the output unit 713, based on the item that is associated with the selected process, outputs a display screen in the selected process that includes a waveform data bar displaying the waveform data of each switched item (step S1806).

[0199] When a selection operation is received from a user and an automatic item switching option is selected in the pop-up window, the control device 700 according to this embodiment displays waveform data of the item corresponding to the selected operation. That is, when a selection operation is received from the user, the control device 700 automatically sets the item corresponding to that operation, thus eliminating the need for the user to manually set the item and reducing the user's workload.

[0200] Furthermore, when the user receives a process selection operation, the control device 700 according to this embodiment automatically sets the items corresponding to that process, thus shortening the time required to set items suitable for that process. Therefore, the time required for the user to understand the status of the process is reduced.

[0201] (Second Implementation)

[0202] In the above embodiments, an example of displaying waveform data related to one process on a display screen was described. However, the control device 700 is not limited to the above display method. Therefore, in the second embodiment, an example of displaying waveform data columns in different areas for each of the multiple processes is described. In addition, the structure of the control device 700 in the second embodiment is the same as that in the first embodiment, so the description is omitted.

[0203] When the receiving unit 712 receives an operation to display two processes, the output unit 713 according to this embodiment outputs a display screen that arranges the waveform data columns of the two processes in different areas.

[0204] In the display screen of this embodiment, when multiple processes are displayed, two processes within the same or similar cycles can be shown. For example, by simultaneously displaying waveform data showing the detection results of "metering start" and "filling start," the user can confirm which injection to perform based on the resin metering results. Thus, by displaying multiple processes through the control device 700 according to this embodiment, the user can understand the impact of processing any one process on other processes.

[0205] Figure 9 This diagram illustrates the display screen output by the output unit 713 in this embodiment. Figure 9 As shown, the waveform data column 1930 for the process "fill start" and the waveform data column 1950 for the process "mold closing start" are displayed on the display screen 1900.

[0206] Display screen 1900 shows the trigger (CH1-5) bar 1921 and X-axis bar 1922 for the first process (e.g., "fill start"). Furthermore, display screen 1900 shows the five channel bars (channel 1 1911 to channel 5 1915) and waveform data bar 1930 used for the first process (e.g., "fill start").

[0207] The 5 channel bars (Channel 1, 1911 to Channel 5, 1915) are the same as those in the first embodiment. Figure 5 The channel bars shown (Channel 1 bar 1511 to Channel 5 bar 1515) are the same, so the description is omitted.

[0208] Similar to the waveform data column 1550 in the first embodiment, the waveform data 1931 to 1935 displayed in the waveform data column 1930 represent changes in the setting information or actual values ​​of each item shown in the first channel column 1511 to the fifth channel column 1515.

[0209] Display screen 1900 shows the trigger (CH6-10) bar 1941 and X-axis bar 1942 for the second process (e.g., "mold closure start"). Furthermore, display screen 1900 shows five channel bars (channel 6 1916 to channel 10 1920) and waveform data bar 1950 for the second process (e.g., "mold closure start").

[0210] The "Mold Closure Start" process is displayed in trigger (CH6-10) column 1941. Five channel columns (channel 6 1916 to channel 10 1920) have items corresponding to the "Mold Closure Start" process.

[0211] Here's an example where "Mold Closing Position Detection" is set in Project 1916A, "25.00" is set in Maximum Value 1916B, and "0.00" is set in Minimum Value 1916C. "Mold Closing Position Detection" refers to the position of the movable pressure plate 120 calculated from the position of the crosshead 151 detected by the mold closing motor encoder 161.

[0212] Here's an example where "Mold Closing Speed ​​Detection" is set in Project 1917A, "300.00" is set in Maximum Value 1917B, and "-100.00" is set in Minimum Value 1917C. "Injection Speed ​​Detection" refers to the speed of the crosshead 151 detected by the mold closing motor encoder 161.

[0213] Here's an example where "Closing Force Detection" is set in Project 1918A, "200.00" is set in Maximum Value 1918B, and "0.00" is set in Minimum Value 1918C. "Closing Force Detection" refers to the clamping force detected by the connecting rod strain detector 141.

[0214] For example, "Closing Torque Detection" is set in item column 1919A, "25.00" is set in maximum value column 1919B, and "-25.00" is set in minimum value column 1714C. "Closing Torque Detection" is represented based on the current value supplied to the clamping motor 160. The current value can be detected by a current detector or determined from the control indication value of the inverter relative to the current supplied to the clamping motor 160.

[0215] Here's an example where "Screw Position Detection" is set in Project 1920A, "100.00" is set in Maximum Value 1920B, and "0.00" is set in Minimum Value 1920C. "Screw Position Detection" refers to the position of the screw 330 detected by the injection motor encoder 351.

[0216] Figure 9 The waveform data column 1950 is set to display waveform data in the process "closing mode start" set in the trigger (CH6-10) column 1941, which represents the changes in the setting information or actual values ​​shown in the items set in the five channel columns (channel 6 column 1916 to channel 10 column 1920).

[0217] Waveform data 1951 in waveform data column 1950 represents the change in the detection result (an example of the actual value) of "Mold Closing Position Detection" set in channel 6 column 1916. Waveform data 1952 represents the change in the detection result (an example of the actual value) of "Mold Closing Speed ​​Detection" set in channel 7 column 1917.

[0218] Waveform data 1953 represents the change in the detection result (an example of the actual value) of "Closing Force Detection" set in channel 8, column 1918. Waveform data 1954 represents the change in the detection result (an example of the actual value) of "Closing Torque Detection" set in channel 4, column 1714.

[0219] Waveform data 1955 represents the change in the detection result (an example of the actual value) of "Screw Position Detection" set in channel 10 column 1920.

[0220] Furthermore, when the receiving unit 712 receives an operation to change the process of either the trigger (CH1-5) column 1921 or the trigger (CH6-10) column 1941, the output unit 713 displays the waveform data of the item set in the item column (item column 1911A-1915A or item column 1916A-1920A) in the waveform data column (waveform data column 1930 or waveform data column 1950) for the changed process. At this time, similar to the first embodiment, it can automatically switch to the item set in the item column (item column 1911A-1915A or item column 1916A-1920A).

[0221] Figure 10 This is a diagram showing the pop-up screen output by the output unit 713 when a change operation is received in the process triggered by column (CH6-10) 2021. Figure 10 In the example shown, it is assumed that the operation of changing from "Mold Closure Start" to "Metering Start" was received in the trigger (CH6-10) column 2021 described below.

[0222] like Figure 10 As shown, when the receiving unit 712 receives the selection of a process, the output unit 713 of this embodiment outputs a pop-up screen (an example of displaying information) 2010 asking whether to switch to a pop-up screen (an example of displaying information) of an item that has been pre-established with a corresponding association with the selected process.

[0223] In the pop-up screen 2010, there are "Yes" button 2011 and "No" button 2012.

[0224] When the receiving unit 712 receives the selection operation of the "No" button 2012, the output unit 713 does not switch the items set in the 5 channel bars (channel bar 6 1916 to channel bar 10 1920).

[0225] On the other hand, when the receiving unit 712 receives the selection operation of the "Yes" button 2011, the output unit 713, based on the fact that the five channel bars (channel bar 6 1916 to channel bar 10 1920) are respectively switched to items that are associated with the process "Metering Start", outputs a display screen of the changed process "Metering Start" including waveform data bar 1950 displaying waveform data according to each switched item.

[0226] Figure 11 This diagram illustrates the display screen output by the output unit 713 in this embodiment. Figure 11 In the displayed screen 2100, regarding... Figure 9 The same symbols are assigned to the same columns in the 1900 display screen, and the descriptions are omitted.

[0227] Figure 11 This example illustrates the display screen that automatically switches to the item corresponding to the selected receiving process. For example... Figure 11 As shown, the waveform data column 1930 for the process "fill start" and the waveform data column 2150 for the process "measurement start" are displayed on the display screen 2100.

[0228] Display screen 2100 shows the trigger (CH1-5) bar 1921 and X-axis bar 1922 for the first operation (e.g., "fill start"). It also shows the five channel bars (channel bar 1911 to channel bar 1915) and waveform data bar 1930 for the first operation (e.g., "fill start").

[0229] exist Figure 11 In the example shown, with Figure 9 Compared to the previous version, the trigger (CH6-10) column 2021, the five channel columns (channel 6 column 2116 to channel 10 column 2120) and the waveform data column 2150 have been updated.

[0230] exist Figure 11 In the trigger (CH6-10) column 2121, the updated process "Metering Start" is displayed. The five channel columns (channel 6 2116 to channel 10 2120) are set with items corresponding to the "Metering Start" process through the processing of the output unit 713. Furthermore, the items set in channel 6 2116 to channel 10 2120 are... Figure 7 The items shown are the same, so descriptions are omitted.

[0231] Figure 11The waveform data column 2150 is set to display waveform data in the "Metering Start" process changed in the trigger (CH6-10) column 2121, which represents the changes in setting information or actual values ​​shown in the items set in the five channel columns (channel 6 column 2116 to channel 10 column 2120). Figure 11 Waveform data column 2150 and Figure 7 The waveform data column 1750 shown is the same, so the description is omitted.

[0232] Thus, when the receiving unit 712 receives the selection of a process, the output unit 713 according to this embodiment outputs a display screen to the display device 760, which includes waveform data showing the changes in setting information or actual values ​​of the multiple selectable items that are pre-established with a corresponding association with the selected process.

[0233] Furthermore, when displaying waveform data for each item, the output unit 713 outputs a display screen of the waveform data according to the scale information (maximum value of Y-axis and minimum value of Y-axis) pre-stored in the process corresponding information storage unit 711, as the range of setting information or actual value displayed for the item.

[0234] Next, the processing sequence performed when the selection of the process is received in the control device 700 according to the second embodiment will be described. Figure 12 This is a flowchart illustrating the control performed in the control device 700 according to the second embodiment when a process selection is received.

[0235] First, the output unit 713 of the control device 700 outputs a display screen, including a waveform data bar displaying waveform data of each item, to the display device 760 for each of the two processes (step S2201).

[0236] Next, the receiving unit 712 determines whether a process selection operation has been received from the operating device 750 in any of the trigger (CH1-5) columns among the multiple processes (step S2202). If it is determined that no selection operation has been received (step S2202: "No"), the process of step S2202 is repeated again.

[0237] On the other hand, when it is determined that the receiving unit 712 has received the process selection operation (step S2202: "Yes"), the output unit 713 outputs (displays) a pop-up screen to confirm whether to switch automatically (step S2203).

[0238] Next, the receiving unit 712 displays a pop-up screen (for example, Figure 10 In the pop-up screen 2010 shown, it is determined whether the selection of automatic item switching has been received (step S2204).

[0239] When it is determined that the receiving unit 712 has not received the selection of the automatic switching item (the "No" button 2012 has been pressed) (step S2204: "No"), the output unit 713 does not switch items, but outputs a display screen including a waveform data bar displaying waveform data of each item for the two processes including the selected process (step S2205).

[0240] On the other hand, when it is determined that the receiving unit 712 has received the selection of the automatic switching item (the "Yes" button 2011 has been pressed) (step S2204: "Yes"), the output unit 713, based on switching to the item that establishes a corresponding association with the selected process, outputs a display screen including a waveform data bar displaying waveform data of each item for the two processes including the selected process (e.g., Figure 11 (The displayed screen shown) (step S2206).

[0241] When switching items in the output unit 713, if there are 5 items associated with the process, all items are switched. However, if there are 4 or fewer items associated with the process, the output unit 713 only switches the 4 or fewer items, while the other items are retained. In this case, based on the output unit 713 updating "In" to "Cut" in the channel bar, waveform data can be hidden in the waveform data bar.

[0242] The control device 700 of this embodiment displays a display screen including waveform data columns for each of the two processes. The display screen of this embodiment is not limited to displaying waveform data columns for different processes; multiple waveform data columns can be used to display the same process. Furthermore, when displaying multiple waveform data columns for the same process, the items displayed in each waveform data column can be set to be the same or different.

[0243] According to this embodiment, waveform data columns for two processes can be displayed, making it easy for users to visually compare waveform data between the two processes. This comparison allows, for example, confirmation of the impact of any process setting and performance on other processes. By performing this confirmation, appropriate settings can be determined for each process, thereby improving the quality of the molded product.

[0244] In the above embodiment, a display screen is shown where items can be selected. This makes it easy for the user to identify the status of a process by selecting the items they wish to confirm in each process. However, in this display screen, when changing a process, the user has to set all items, increasing the operational burden. In contrast, in the above embodiment, by automatically switching to the items associated with the process, the user's operational burden of setting items suitable for that process is reduced.

[0245] When displaying waveform data in the waveform data section of the display screen, it is desirable to display different scale information for each item. Therefore, if the user can arbitrarily set the scale information, the user would need to set the scale information for each item, thus increasing the operational burden.

[0246] In contrast, in the above embodiment, scale information is maintained for each item that is associated with a process. Furthermore, in the above embodiment, when items are automatically switched, scale information corresponding to that item is set (e.g., the maximum and minimum values ​​of the Y-axis). Therefore, even if the user does not change the scale information, waveform data corresponding to that item can be displayed, thus improving visual recognizability and reducing the user's operational burden.

[0247] Furthermore, when a process change is performed, a pop-up window displays a request to confirm whether to automatically switch to the item associated with that process. This allows users to choose whether to automatically switch items, thus displaying the item corresponding to the current situation and reducing the user's workload.

[0248] In the above embodiments, an example of displaying waveform data was described as an example of using a chart to represent changes in setting information or actual values ​​based on a project. However, the above embodiments are not limited to displaying waveform data; any display that represents changes in setting information or actual values ​​in a user-visible chart is acceptable.

[0249] The embodiments of the injection molding machine according to the present invention have been described above, but the present invention is not limited to the above embodiments. Various changes, modifications, substitutions, additions, deletions, and combinations can be made within the scope described in the technical solution. These, of course, also fall within the technical scope of the present invention.

Claims

1. A control device for an injection molding machine, comprising: The receiving unit receives the selection of the injection molding process and the selection of settings information indicating the settings of the process or the selection of items indicating the actual values ​​detected in the process. The process-related information storage unit stores information related to projects that are associated with the process; and When the receiving unit receives the selection of the process, the output unit outputs display information to the display device in the form of a graph, which shows the change of the setting information or the actual value of the item stored in the process corresponding information storage unit based on the process that was selected and whose corresponding association was established.

2. A control device for an injection molding machine, comprising: The receiving unit receives selections for injection molding processes and setting information indicating the settings of said processes, or selections of items indicating actual values ​​detected in said processes; and The output unit, when the receiving unit receives the selection of the process, outputs display information to the display device in the form of a graph, showing the change of the setting information or the actual value based on the item that is pre-associated with the selected process. When the receiving unit receives the selection of the process, the output unit outputs an inquiry display information asking whether to switch to the item that is pre-associated with the selected process. When the receiving unit receives the selection of the switching intention, it outputs the display information that is pre-associated with the item that is pre-associated with the selected process.

3. The control device for an injection molding machine according to claim 1 or 2, wherein, The output unit outputs the display information according to the setting information or scale information representing the range of the actual value to be displayed, which are pre-established corresponding associations for each item.

4. The control device for an injection molding machine according to claim 1 or 2, wherein, The output unit will display the display information of the item that is pre-associated with the process in a different area of ​​each of the multiple processes, and output the display information to the display device.

5. The control device for an injection molding machine according to claim 1 or 2, wherein, The receiving unit receives operations that modify the items that are pre-associated with the process. When the receiving unit receives the selection of the process, the output unit outputs the display information of the item that is pre-associated with the process, according to the change.

6. An injection molding machine, comprising: The receiving unit receives the process selection from the injection molding machine and displays setting information about the process as information about the process, or displays the selection of items based on the actual value of the process; The process-related information storage unit stores information related to projects that are associated with the process; and When the receiving unit receives the selection of the process, the output unit outputs display information to the display device in the form of a graph, which shows the change of the setting information or the actual value of the item stored in the process corresponding information storage unit based on the process that was selected and whose corresponding association was established.

7. An injection molding machine, comprising: The receiving unit receives the process selection from the injection molding machine and displays setting information for the process as information about the process, or displays the selection of items based on the actual values ​​of the process; and The output unit, when the receiving unit receives the selection of the process, outputs display information to the display device in the form of a graph, showing the change of the setting information or the actual value based on the item that is pre-associated with the selected process. When the receiving unit receives the selection of the process, the output unit outputs an inquiry display information asking whether to switch to the item that is pre-associated with the selected process. When the receiving unit receives the selection of the switching intention, it outputs the display information that is pre-associated with the item that is pre-associated with the selected process.

8. A program product for causing a computer to perform the following steps: The receiving step involves receiving the selection of the injection molding machine's process and displaying setting information about the process, or displaying the selection of items based on the actual value of the process. The process-related information storage step stores information related to projects that are associated with the process; and In the output step, when the receiving step receives the selection of the process, the display information, which is a graphical representation of the changes in the setting information or the actual value of the item stored in the process corresponding information storage step based on the process that received the selection, will be output to the display device.

9. A program product for causing a computer to perform the following steps: The receiving step involves receiving the selection of the injection molding machine's process and displaying setting information about the process, or displaying the selection of items based on the actual values ​​of the process; and In the output step, when the receiving step receives the selection of the process, it outputs display information, in a chart format, to the display device, showing the changes in the setting information or the actual value of the item that is pre-associated with the selected process. When the receiving step receives the selection of the process, the output step outputs an inquiry displaying whether to switch to the item pre-associated with the selected process. When the receiving step receives the selection of the switching interest, it outputs the item pre-associated with the selected process. The display information of the project.

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