Injection molding machine control device, injection molding machine, and program

Abstract

To make it easy to appropriate grasp a situation of a specified range, and accordingly achieve detailed quality management.SOLUTION: A control device of an injection molding machine is a device in which a display device and an input device are integrated with each other, and has an output part that can accept operation in a screen region displayed by the display device, and outputs a display screen indicating waveform information indicating one or more changes between set information indicating setting of an injection molding process, an actual value in the process, and a plurality of indication information for setting the range of the waveform information, to a display / input device connected to the injection molding machine, and an acceptance part for accepting one or more operations among the plurality of indication information displayed on the display screen from the display / input device.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a control device for an injection molding machine, an injection molding machine, and a program. [Background technology]

[0002] Conventionally, injection molding machines are equipped with various sensors. Therefore, a technique has been proposed for the injection molding machine in which various processes during injection molding based on detection signals from the sensors or waveform data representing settings made by a user are displayed on a display device.

[0003] In recent years, various techniques have been proposed for displaying waveform data on the display device of an injection molding machine. For example, in Reference 1, a technique is proposed for displaying information such as a mold closing position in correspondence with a variation curve of a physical quantity.

[0004] In recent years, there has been a trend toward using display input devices in which an operation device such as a touch panel and a display device are integrated as an interface for receiving operations from a user. In such display input devices, since the operation device and the display device are integrated, it is possible to perform operations while checking the displayed content. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2005-288894 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, the technology described in Patent Document 1 does not use a display input device such as a touch panel, and is simply a technology for appropriately recognizing a reference value by pointing to a fluctuation curve with a cursor, but is not a technology for reducing the operational burden. In other words, with the conventional technology, it is difficult to specify a range, etc. for the waveform data, and therefore there is a problem that it is difficult to specifically grasp the situation represented by the waveform data.

[0007] One aspect of the present invention provides a technology that enables detailed quality control by specifying a range of waveform information using a display input device, thereby making it possible to properly grasp the situation shown in that range. [Means for solving the problem]

[0008] The control device for an injection molding machine according to one aspect of the present invention is a device in which a display device and an input device are integrated, and is capable of receiving operations in a screen area displayed by the display device, and the display input device connected to the injection molding machine displays setting information indicating settings of an injection molding process, waveform information indicating one or more changes in actual values ​​due to the process, and a range of the waveform information. Start value For setting 1. Instruction information; second instruction information for setting an end value of the range of the waveform information; An output unit that outputs a display screen showing 1. Instructions and Each of the second instruction information Against Individual The display device includes a reception unit that receives an operation from the display input device. Effect of the Invention

[0009] According to one aspect of the present invention, it becomes easy to properly grasp the situation within a specified range, thereby enabling detailed quality control to be realized. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram showing a state when mold opening of the injection molding machine according to the first embodiment is completed. [Diagram 2] FIG. 2 is a diagram showing a state during mold clamping of the injection molding machine according to the first embodiment. [Diagram 3] FIG. 3 is a functional block diagram illustrating components of the control device according to the first embodiment. [Figure 4] FIG. 4 is a diagram illustrating a display screen output by the output unit of the first embodiment. [Diagram 5] FIG. 5 is a diagram illustrating a display screen output by the output unit of the first embodiment. [Figure 6] FIG. 6 is a flowchart showing control performed in the control device according to the first embodiment when accepting designation of a range to be designated in the range selection display field. [Figure 7] FIG. 7 is a diagram illustrating a log information screen output by the output unit according to the first embodiment. [Figure 8] FIG. 8 is a diagram illustrating a display screen output by the output unit of the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding components are denoted by the same or corresponding reference numerals, and the description thereof may be omitted.

[0012] FIG. 1 is a diagram showing a state of the injection molding machine according to the first embodiment when mold opening is completed. FIG. 2 is a diagram showing a state of the injection molding machine according to the first embodiment when mold clamping is performed. In this specification, the X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other. The X-axis direction and the Y-axis direction represent the horizontal direction, and the Z-axis direction represents the vertical direction. When the mold clamping device 100 is of a horizontal type, the X-axis direction is the mold opening / closing direction, and the Y-axis direction is the width direction of the injection molding machine 10. The negative side of the Y-axis direction is called the operation side, and the positive side of the Y-axis direction is called the anti-operation side.

[0013] As shown in FIG. 1 and FIG. 2, the injection molding machine 10 includes a mold clamping device 100 that opens and closes a mold device 800, an ejector device 200 that ejects a molded product molded by the mold device 800, an injection device 300 that injects a molding material into the mold device 800, a moving device 400 that moves the injection device 300 forward and backward relative to the mold device 800, a control device 700 that controls each component of the injection molding machine 10, and a frame 900 that supports each component of the injection molding machine 10. The frame 900 includes a mold clamping device frame 910 that supports the mold clamping device 100, and an injection device frame 920 that supports the injection device 300. The mold clamping device frame 910 and the injection device frame 920 are each installed on the floor 2 via a leveling adjuster 930. The control device 700 is disposed in the internal space of the injection device frame 920. Hereinafter, each component of the injection molding machine 10 will be described.

[0014] (mold clamping device) In the description of the clamping unit 100, the moving direction of the movable platen 120 during mold closing (for example, the positive direction of the X-axis) is the front, and the moving direction of the movable platen 120 during mold opening (for example, the negative direction of the X-axis) is the rear.

[0015] The mold clamping device 100 performs mold closing, pressurization, mold clamping, depressurization, and mold opening of the mold device 800. The mold device 800 includes a fixed mold 810 and a movable mold 820. The mold clamping device 100 is, for example, a horizontal type, and the mold opening and closing direction is horizontal. The mold clamping device 100 has a fixed platen 110 to which the fixed mold 810 is attached, a movable platen 120 to which the movable mold 820 is attached, and a movement mechanism 102 that moves the movable platen 120 in the mold opening and closing direction relative to the fixed platen 110.

[0016] The stationary platen 110 is fixed to the mold clamping unit frame 910. A stationary mold 810 is attached to the surface of the stationary platen 110 that faces the movable platen 120.

[0017] The movable platen 120 is disposed so as to be movable in the mold opening / closing direction relative to the mold clamping unit frame 910. A guide 101 for guiding the movable platen 120 is disposed on the mold clamping unit frame 910. A movable mold 820 is attached to the surface of the movable platen 120 facing the fixed platen 110.

[0018] The moving mechanism 102 advances and retreats the movable platen 120 relative to the fixed platen 110, thereby performing mold closing, pressurization, mold clamping, depressurization, and mold opening of the mold apparatus 800. The moving mechanism 102 has a toggle support 130 disposed at a distance from the fixed platen 110, a tie bar 140 connecting the fixed platen 110 and the toggle support 130, a toggle mechanism 150 that moves the movable platen 120 in the mold opening and closing direction relative to the toggle support 130, 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 platen 110 and the toggle support 130.

[0019] The toggle support 130 is disposed at a distance from the fixed platen 110, and is placed on the mold clamping unit frame 910 so as to be freely movable in the mold opening and closing direction. The toggle support 130 may be disposed so as to be freely movable along a guide laid on the mold clamping unit frame 910. The guide of the toggle support 130 may be the same as the guide 101 of the movable platen 120.

[0020] In this embodiment, the fixed platen 110 is fixed to the mold clamping unit frame 910, and the toggle support 130 is arranged so as to be freely movable in the mold opening and closing direction relative to the mold clamping unit frame 910, but the toggle support 130 may be fixed to the mold clamping unit frame 910, and the fixed platen 110 may be arranged so as to be freely movable in the mold opening and closing direction relative to the mold clamping unit frame 910.

[0021] The tie bar 140 connects the fixed platen 110 and the toggle support 130 at a distance L in the mold opening / closing direction. A plurality of tie bars 140 (for example, four) may be used. The plurality of tie bars 140 are arranged parallel to the mold opening / closing direction and extend according to the mold clamping force. At least one tie bar 140 may be provided with a tie bar strain detector 141 that detects strain of the tie bar 140. The tie bar strain detector 141 sends a signal indicating the detection result to the control device 700. The detection result of the tie bar strain detector 141 is used for detecting the mold clamping force, etc.

[0022] In this embodiment, the tie bar strain detector 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 the strain gauge type, and may be a piezoelectric type, a capacitive type, a hydraulic type, an electromagnetic type, or the like, and the attachment position thereof is also not limited to the tie bar 140.

[0023] The toggle mechanism 150 is disposed between the movable platen 120 and the toggle support 130, and moves the movable platen 120 relative to the toggle support 130 in the mold opening / closing direction. The toggle mechanism 150 has a crosshead 151 that moves in the mold opening / closing direction, and a pair of link groups that bend and stretch with the movement of the crosshead 151. Each of the pair of link groups has a first link 152 and a second link 153 that are connected to bendable and stretchable by a pin or the like. The first link 152 is attached to the movable platen 120 by a pin or the like so as to be swingable. The second link 153 is attached to the toggle support 130 by a pin or the like so as to be swingable. The second link 153 is attached to the crosshead 151 via a third link 154. When the crosshead 151 is advanced or retreated relative to the toggle support 130, the first link 152 and the second link 153 bend and stretch, and the movable platen 120 advances or retreats relative to the toggle support 130.

[0024] The configuration of toggle mechanism 150 is not limited to the configuration shown in Figures 1 and 2. For example, although the number of joints in each link group is five in Figures 1 and 2, it may be four, and one end of third link 154 may be connected to a joint between first link 152 and second link 153.

[0025] The mold clamping motor 160 is attached to the toggle support 130 and operates the toggle mechanism 150. The mold clamping motor 160 advances and retreats the crosshead 151 relative to the toggle support 130, thereby bending and extending the first link 152 and the second link 153 and advancing and retreating the movable platen 120 relative to the toggle support 130. The mold clamping motor 160 is directly connected to the motion conversion mechanism 170, but may also be connected to the motion conversion mechanism 170 via a belt, a pulley, or the like.

[0026] The motion conversion mechanism 170 converts the rotational motion of the mold clamping motor 160 into the linear motion of the crosshead 151. The motion conversion mechanism 170 includes a screw shaft and a screw nut that screws onto the screw shaft. A ball or roller may be interposed between the screw shaft and the screw nut.

[0027] The mold clamping unit 100 performs a mold closing process, a pressure increase process, a mold clamping process, a pressure release process, a mold opening process, and the like under the control of the control device 700.

[0028] In the mold closing process, the mold clamping motor 160 is driven to move the crosshead 151 forward at a set moving speed to a mold closing completion position, thereby moving the movable platen 120 forward and bringing the movable mold 820 into contact with the fixed mold 810. The position and moving speed of the crosshead 151 are detected by using, for example, a mold clamping motor encoder 161. The mold clamping motor encoder 161 detects the rotation of the mold clamping motor 160 and sends a signal indicating the detection result to the control device 700.

[0029] The crosshead position detector that detects the position of the crosshead 151 and the crosshead movement speed detector that detects the movement speed of the crosshead 151 are not limited to the mold clamping motor encoder 161, and general devices can be used. Furthermore, the movable platen position detector that detects the position of the movable platen 120 and the movable platen movement speed detector that detects the movement speed of the movable platen 120 are not limited to the mold clamping motor encoder 161, and general devices can be used.

[0030] In the pressure increasing step, the mold clamping motor 160 is further driven to move the crosshead 151 further forward from the mold closing completion position to the mold clamping position, thereby generating a mold clamping force.

[0031] In the mold clamping process, the mold clamping motor 160 is driven to maintain the position of the crosshead 151 at the mold clamping position. In the mold clamping process, the mold clamping force generated in the pressure increase process is maintained. In the mold clamping process, a cavity space 801 (see FIG. 2) is formed between the movable mold 820 and the fixed mold 810, and the injection device 300 fills the cavity space 801 with liquid molding material. The filled molding material is solidified to obtain a molded product.

[0032] The number of cavity spaces 801 may be one or more. In the latter case, multiple molded products are obtained at the same time. An insert material may be placed in a part of the cavity space 801, and another part of the cavity space 801 may be filled with a molding material. A molded product in which the insert material and the molding material are integrated is obtained.

[0033] In the depressurization process, the mold clamping motor 160 is driven to move the crosshead 151 back from the mold clamping position to the mold opening start position, thereby moving the movable platen 120 back and reducing the mold clamping force. The mold opening start position and the mold closing completion position may be the same position.

[0034] In the mold opening process, the mold clamping motor 160 is driven to move the crosshead 151 backward at a set moving speed from the mold opening start position to the mold opening completion position, thereby moving the movable platen 120 backward and separating the movable mold 820 from the fixed mold 810. After that, the ejector unit 200 ejects the molded product from the movable mold 820.

[0035] The setting conditions in the mold closing process, the pressure increase process, and the mold clamping process are set together as a series of setting conditions. For example, the moving speed and position of the crosshead 151 in the mold closing process and the pressure increase process (including the mold closing start position, the moving speed switching position, the mold closing completion position, and the mold clamping position) and the mold clamping force are set together as a series of setting conditions. The mold closing start position, the moving speed switching position, the mold closing completion position, and the mold clamping position are arranged in this order from the rear side to the front, and represent the start point and the end point of the section in which the moving speed is set. The moving speed is set for each section. There may be one or more moving speed switching positions. The moving speed switching position does not have to be set. Only one of the mold clamping position and the mold clamping force may be set.

[0036] The setting conditions in the depressurization process and mold opening process are set in the same manner. For example, the movement speed and position of the crosshead 151 in the depressurization process and mold opening process (mold opening start position, movement speed switching position, and mold opening completion position) are set together as a series of setting conditions. The mold opening start position, movement speed switching position, and mold opening completion position are arranged in this order from the front to the rear, and represent the start and end points of the section in which the movement speed is set. The movement speed is set for each section. There may be one or more movement speed switching positions. The movement speed switching position does not have to be set. The mold opening start position and the mold closing completion position may be the same position. Also, the mold opening completion position and the mold closing start position may be the same position.

[0037] Note that the moving speed and position of the movable platen 120 may be set instead of the moving speed and position of the crosshead 151. Moreover, the clamping force may be set instead of the position of the crosshead (e.g., the clamping position) or the position of the movable platen.

[0038] Incidentally, the toggle mechanism 150 amplifies the driving force of the mold clamping motor 160 and transmits it to the movable platen 120. The amplification ratio is also called the toggle ratio. The toggle ratio changes according to the angle θ between the first link 152 and the second link 153 (hereinafter also referred to as the "link angle θ"). The link angle θ is determined from the position of the crosshead 151. When the link angle θ is 180°, the toggle ratio is maximum.

[0039] When the thickness of the mold device 800 changes due to replacement of the mold device 800 or a temperature change of the mold device 800, a mold thickness adjustment is performed so that a predetermined clamping force is obtained during mold clamping. In the mold thickness adjustment, for example, the distance L between the fixed platen 110 and the toggle support 130 is adjusted so that the link angle θ of the toggle mechanism 150 becomes a predetermined angle at the mold touch time when the movable mold 820 touches the fixed mold 810.

[0040] The mold clamping device 100 has a mold thickness adjustment mechanism 180. The mold thickness adjustment mechanism 180 adjusts the mold thickness by adjusting the distance L between the fixed platen 110 and the toggle support 130. The mold thickness adjustment is performed, for example, between the end of a molding cycle and the start of the next molding cycle. The mold thickness adjustment mechanism 180 has, for example, a screw shaft 181 formed at the rear end of the tie bar 140, a screw nut 182 held rotatably and immovably on the toggle support 130, and a mold thickness adjustment motor 183 that rotates the screw nut 182 screwed onto the screw shaft 181.

[0041] The screw shaft 181 and the screw nut 182 are provided for each tie bar 140. The rotational driving force of the mold thickness adjustment motor 183 may be transmitted to the multiple screw nuts 182 via a rotational driving force transmission unit 185. The multiple screw nuts 182 can be rotated synchronously. Note that by changing the transmission path of the rotational driving force transmission unit 185, it is also possible to rotate the multiple screw nuts 182 individually.

[0042] The rotational drive force transmission unit 185 is composed of, for example, gears. In this case, a driven gear is formed on the outer periphery of each screw nut 182, a drive gear is attached to the output shaft of the mold thickness adjustment motor 183, and an intermediate gear that meshes with the multiple driven gears and the drive gear is rotatably held in the center of the toggle support 130. Note that the rotational drive force transmission unit 185 may be composed of a belt, a pulley, or the like, instead of gears.

[0043] The operation of the mold thickness adjustment mechanism 180 is controlled by a control device 700. The control device 700 drives the mold thickness adjustment motor 183 to rotate the screw nut 182. As a result, the position of the toggle support 130 relative to the tie bar 140 is adjusted, and the interval L between the fixed platen 110 and the toggle support 130 is adjusted. Note that a plurality of mold thickness adjustment mechanisms may be used in combination.

[0044] The distance L is detected using a mold thickness adjustment motor encoder 184. The mold thickness adjustment motor encoder 184 detects the amount of rotation and the direction of rotation of the mold thickness adjustment motor 183, and sends a signal indicating the detection result to the control device 700. The detection result of the mold thickness adjustment motor encoder 184 is used to monitor and control the position of the toggle support 130 and the distance L. Note that the toggle support position detector that detects the position of the toggle support 130 and the distance detector that detects the distance L are not limited to the mold thickness adjustment motor encoder 184, and general types can be used.

[0045] The mold clamping apparatus 100 may have a mold temperature regulator that regulates the temperature of the mold apparatus 800. The mold apparatus 800 has a flow path for a temperature control medium therein. The mold temperature regulator regulates the temperature of the mold apparatus 800 by regulating the temperature of the temperature control medium supplied to the flow path of the mold apparatus 800.

[0046] Although the mold clamping apparatus 100 of this embodiment is of a horizontal type in which the mold opening and closing direction is horizontal, it may be of a vertical type in which the mold opening and closing direction is vertical.

[0047] Although the mold clamping apparatus 100 of the present embodiment has a mold clamping motor 160 as a drive source, it may have a hydraulic cylinder instead of the mold clamping motor 160. Also, the mold clamping apparatus 100 may have a linear motor for opening and closing the mold, and an electromagnet for mold clamping.

[0048] (Ejector device) In describing the ejector unit 200, similar to the description of the mold clamping unit 100, the direction of movement of the movable platen 120 during mold closing (e.g., the positive direction of the X-axis) will be referred to as the forward direction, and the direction of movement of the movable platen 120 during mold opening (e.g., the negative direction of the X-axis) will be referred to as the rearward direction.

[0049] The ejector unit 200 is attached to the movable platen 120 and moves forward and backward together with the movable platen 120. The ejector unit 200 has an ejector rod 210 that ejects a molded product from the mold device 800, and a drive mechanism 220 that moves the ejector rod 210 in the movement direction of the movable platen 120 (X-axis direction).

[0050] The ejector rod 210 is arranged so as to be able to move forward and backward in a through hole of the movable platen 120. The front end of the ejector rod 210 contacts an ejector plate 826 of the movable mold 820. The front end of the ejector rod 210 may or may not be connected to the ejector plate 826.

[0051] 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 screw shaft and a screw nut that screws onto the screw shaft. A ball or roller may be interposed between the screw shaft and the screw nut.

[0052] The ejector unit 200 performs an ejection process under the control of the control unit 700. In the ejection process, the ejector rod 210 advances from the standby position to the ejection position at a set moving speed, thereby advancing the ejector plate 826 and ejecting the molded product. After that, the ejector motor is driven to move the ejector rod 210 backward at the set moving speed, and the ejector plate 826 backward to the original standby position.

[0053] The position and moving speed of the ejector rod 210 are detected, for example, by using an ejector motor encoder. The ejector motor encoder detects the rotation of the ejector motor and sends a signal indicating the detection result to the control device 700. Note that the ejector rod position detector that detects the position of the ejector rod 210 and the ejector rod moving speed detector that detects the moving speed of the ejector rod 210 are not limited to the ejector motor encoder, and general types can be used.

[0054] (injection device) In the description of the injection device 300, unlike the description of the mold clamping device 100 and the description of the ejector device 200, the movement direction of the screw 330 during filling (e.g., the negative X-axis direction) is described as the forward direction, and the movement direction of the screw 330 during metering (e.g., the positive X-axis direction) is described as the rearward direction.

[0055] The injection device 300 is installed on a slide base 301, and the slide base 301 is disposed so as to be movable forward and backward with respect to the injection device frame 920. The injection device 300 is disposed so as to be movable forward and backward with respect to the mold device 800. The injection device 300 touches the mold device 800, and fills the molding material measured in the cylinder 310 into a cavity space 801 in the mold device 800. The injection device 300 has, for example, a cylinder 310 for heating the molding material, a nozzle 320 provided at the front end of the cylinder 310, a screw 330 disposed in the cylinder 310 so as to be movable forward and backward and rotatable, 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 a load transmitted between the injection motor 350 and the screw 330.

[0056] Cylinder 310 heats the molding material supplied to the inside from supply port 311. The molding material includes, for example, resin. The molding material is formed, for example, in the shape of pellets, and is supplied to supply port 311 in a solid state. Supply port 311 is formed at the rear of cylinder 310. A cooler 312 such as a water-cooled cylinder is provided on the outer periphery of the rear of cylinder 310. A heater 313 such as a band heater and a temperature detector 314 are provided on the outer periphery of cylinder 310, forward of cooler 312.

[0057] Cylinder 310 is divided into a plurality of zones in the axial direction (e.g., X-axis direction) of cylinder 310. Each of the plurality of zones is provided with heater 313 and temperature detector 314. A set temperature is set for each of the plurality of zones, and control device 700 controls heater 313 so that the detected temperature of temperature detector 314 becomes the set temperature.

[0058] The nozzle 320 is provided at the front end of the cylinder 310, and is pressed against the mold device 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.

[0059] The screw 330 is disposed in the cylinder 310 so as to be rotatable and movable forward and backward. When the screw 330 is rotated, the molding material is sent forward along the spiral groove of the screw 330. As the molding material is sent forward, it is gradually melted by heat from the cylinder 310. As the liquid molding material is sent forward of the screw 330 and accumulates in the front part of the cylinder 310, the screw 330 is moved backward. Thereafter, when the screw 330 is moved forward, the liquid molding material accumulated in front of the screw 330 is injected from the nozzle 320 and filled into the mold device 800.

[0060] A check ring 331 is attached to the front of the screw 330 so as to be movable back and forth as a check valve for preventing the backflow of molding material from the front to the rear of the screw 330 when the screw 330 is pushed forward.

[0061] When the screw 330 is moved forward, the backflow prevention ring 331 is pushed backward by the pressure of the molding material in front of the screw 330, and moves backward relatively to the screw 330 to a blocking position (see FIG. 2) where the flow path of the molding material is blocked. This prevents the molding material accumulated in front of the screw 330 from flowing backward.

[0062] On the other hand, when the screw 330 is rotated, the backflow prevention ring 331 is pushed forward by the pressure of the molding material sent forward along the spiral groove of the screw 330, and moves forward relatively to the screw 330 to an open position (see FIG. 1) where the flow path of the molding material is opened. As a result, the molding material is sent forward of the screw 330.

[0063] The backflow prevention ring 331 may be either a co-rotating type that rotates together with the screw 330 or a non-co-rotating type that does not rotate together with the screw 330.

[0064] The injection device 300 may have a drive source for moving the backflow prevention ring 331 back and forth between the open position and the closed position relative to the screw 330.

[0065] The metering motor 340 rotates the screw 330. The drive source for rotating the screw 330 is not limited to the metering motor 340, and may be, for example, a hydraulic pump.

[0066] The injection motor 350 advances and retreats the screw 330. A motion conversion mechanism that converts the rotational motion of the injection motor 350 into the linear motion of the screw 330 is provided between the injection motor 350 and the screw 330. The motion conversion mechanism has, for example, a screw shaft and a screw nut that screws onto the screw shaft. A ball or roller may be provided between the screw shaft and the screw nut. The drive source that advances and retreats the screw 330 is not limited to the injection motor 350, and may be, for example, a hydraulic cylinder.

[0067] The load detector 360 detects the load transmitted between the injection motor 350 and the screw 330. The detected load is converted into pressure by the control device 700. The load detector 360 is provided on a load transmission path between the injection motor 350 and the screw 330, and detects the load acting on the load detector 360.

[0068] The load detector 360 sends a signal of the detected load to the control device 700. The load detected by the load detector 360 is converted into pressure acting between the screw 330 and the molding material, and is used to control and monitor the pressure that the screw 330 receives from the molding material, the back pressure on the screw 330, the pressure that the screw 330 acts on the molding material, and the like.

[0069] The pressure detector for detecting the pressure of the molding material is not limited to the load detector 360, and a general detector may be used. For example, a nozzle pressure sensor or a mold internal pressure sensor may be used. The nozzle pressure sensor is installed in the nozzle 320. The mold internal pressure sensor is installed inside the mold device 800.

[0070] The injection device 300 performs a metering process, a filling process, a pressure holding process, and the like under the control of the control device 700. The filling process and the pressure holding process may be collectively referred to as the injection process.

[0071] In the metering process, the metering motor 340 is driven to rotate the screw 330 at a set rotation speed, and the molding material is sent forward along the spiral groove of the screw 330. As a result, the molding material is gradually melted. As the liquid molding material is sent forward of the screw 330 and accumulates at the front of the cylinder 310, the screw 330 is moved backward. The rotation speed of the screw 330 is detected, for example, by using a metering motor encoder 341. The metering motor encoder 341 detects the rotation of the metering motor 340 and sends a signal indicating the detection result to the control device 700. Note that the screw rotation speed detector that detects the rotation speed of the screw 330 is not limited to the metering motor encoder 341, and a general one can be used.

[0072] In the metering process, in order to restrict abrupt retraction of the screw 330, a set back pressure may be applied to the screw 330 by driving the injection motor 350. The back pressure on the screw 330 is detected, for example, by using a load detector 360. When the screw 330 retracts to the metering completion position and a predetermined amount of molding material is accumulated in front of the screw 330, the metering process is completed.

[0073] The position and rotation speed of the screw 330 in the metering process are set together as a series of setting conditions. For example, a metering start position, a rotation speed switching position, and a metering completion position are set. These positions are arranged in this order from the front to the rear, and represent the start and end points of the section in which the rotation speed is set. The rotation speed is set for each section. There may be one or more rotation speed switching positions. The rotation speed switching positions do not have to be set. In addition, a back pressure is set for each section.

[0074] In the filling step, the injection motor 350 is driven to move the screw 330 forward at a set moving speed, and the liquid molding material accumulated in front of the screw 330 is filled into the cavity space 801 in the mold device 800. The position and moving speed of the screw 330 are detected, for example, by using an injection motor encoder 351. The injection motor encoder 351 detects the rotation of the injection motor 350 and sends a signal indicating the detection result to the control device 700. When the position of the screw 330 reaches a set position, switching from the filling step to the pressure holding step (so-called V / P switching) is performed. The position where the V / P switching is performed is also called the V / P switching position. The set moving speed of the screw 330 may be changed depending on the position of the screw 330, time, etc.

[0075] The position and movement speed of the screw 330 in the filling process are set together as a series of setting conditions. For example, a filling start position (also called an "injection start position"), a movement speed switching position, and a V / P switching position are set. These positions are arranged in this order from the rear side to the front, and represent the start and end points of the section for which the movement speed is set. The movement speed is set for each section. There may be one or more movement speed switching positions. The movement speed switching positions do not have to be set.

[0076] An upper limit value for the pressure of the screw 330 is set for each section in which the moving speed of the screw 330 is set. The pressure of the screw 330 is detected by a load detector 360. When the pressure of the screw 330 is equal to or lower than the set pressure, the screw 330 is advanced at the set moving speed. On the other hand, when the pressure of the screw 330 exceeds the set pressure, the screw 330 is advanced at a moving speed slower than the set moving speed so that the pressure of the screw 330 is equal to or lower than the set pressure, for the purpose of protecting the mold.

[0077] After the position of the screw 330 reaches the V / P switching position in the filling process, the screw 330 may be temporarily stopped at the V / P switching position, and then the V / P switching may be performed. Immediately before the V / P switching, instead of stopping the screw 330, the screw 330 may be moved forward or backward at a slow speed. Furthermore, the screw position detector that detects the position of the screw 330 and the screw movement speed detector that detects the movement speed of the screw 330 are not limited to the injection motor encoder 351, and general detectors may be used.

[0078] In the holding pressure step, the injection motor 350 is driven to push the screw 330 forward, and the pressure of the molding material at the front end of the screw 330 (hereinafter also referred to as "holding pressure") is maintained at a set pressure, and the molding material remaining in the cylinder 310 is pushed toward the mold device 800. The molding material that is insufficient due to cooling contraction in the mold device 800 can be replenished. The holding pressure is detected, for example, by a load detector 360. The set value of the holding pressure may be changed depending on the elapsed time from the start of the holding pressure step. The holding pressure and the holding time for which the holding pressure is held in the holding pressure step may each be set multiple times, or may be set collectively as a series of setting conditions.

[0079] In the dwelling step, the molding material in the cavity space 801 in the mold device 800 is gradually cooled, and when the dwelling step is completed, the entrance to the cavity space 801 is blocked by the solidified molding material. This state is called a gate seal, and prevents the molding material from flowing back from the cavity space 801. After the dwelling step, the cooling step is started. In the cooling step, the molding material in the cavity space 801 is solidified. A measuring step may be performed during the cooling step in order to shorten the molding cycle time.

[0080] The injection device 300 of this embodiment is of an in-line screw type, but may be of a pre-plastication type or the like. A pre-plastication type injection device supplies molding material molten in a plasticization cylinder to an injection cylinder, and injects the molding material from the injection cylinder into a mold device. A screw is disposed in the plasticization cylinder so as to be rotatable but unable to move forward or backward, or a screw is disposed so as to be rotatable and able to move forward or backward. Meanwhile, a plunger is disposed in the injection cylinder so as to be able to move forward or backward.

[0081] Furthermore, the injection device 300 of this embodiment is a horizontal type in which the axial direction of the cylinder 310 is horizontal, but may be a vertical type in which the axial direction of the cylinder 310 is vertical. A mold clamping device to be combined with the vertical injection device 300 may be either a vertical type or a horizontal type. Similarly, a mold clamping device to be combined with the horizontal injection device 300 may be either a horizontal type or a vertical type.

[0082] (Mobile device) In the description of the moving device 400, similar to the description of the injection device 300, the moving direction of the screw 330 during filling (for example, the negative X-axis direction) is the front, and the moving direction of the screw 330 during metering (for example, the positive X-axis direction) is the rear.

[0083] The moving device 400 moves the injection device 300 forward and backward relative to the mold device 800. In addition, the moving device 400 presses the nozzle 320 against the mold device 800 to generate a nozzle touch pressure. The moving device 400 includes a hydraulic pump 410, a motor 420 as a drive source, a hydraulic cylinder 430 as a hydraulic actuator, and the like.

[0084] The hydraulic pump 410 has a first port 411 and a second port 412. The hydraulic pump 410 is a pump that can rotate in both directions, and by switching the rotation direction of the motor 420, it draws in hydraulic fluid (e.g., oil) from one of the first port 411 and the second port 412 and discharges it from the other, thereby generating hydraulic pressure. Note that the hydraulic pump 410 can also draw in hydraulic fluid from a tank and discharge the hydraulic fluid from one of the first port 411 and the second port 412.

[0085] The motor 420 operates the hydraulic pump 410. The motor 420 drives the hydraulic pump 410 with a rotational direction and rotational torque according to a control signal from the control device 700. The motor 420 may be an electric motor or an electric servo motor.

[0086] The hydraulic cylinder 430 has a cylinder body 431, a piston 432, and a piston rod 433. The cylinder body 431 is fixed to the injection device 300. The piston 432 divides the inside of the cylinder body 431 into a front chamber 435 as a first chamber and a rear chamber 436 as a second chamber. The piston rod 433 is fixed to the fixed platen 110.

[0087] A front chamber 435 of the hydraulic cylinder 430 is connected to a first port 411 of the hydraulic pump 410 via a first flow path 401. The hydraulic fluid discharged from the first port 411 is supplied to the front chamber 435 via the first flow path 401, thereby pushing the injection unit 300 forward. The injection unit 300 is moved forward, and the nozzle 320 is pressed against the fixed die 810. The front chamber 435 functions as a pressure chamber that generates a nozzle touch pressure of the nozzle 320 by the pressure of the hydraulic fluid supplied from the hydraulic pump 410.

[0088] 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 hydraulic fluid discharged 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 unit 300 backward. The injection unit 300 is moved backward, and the nozzle 320 is separated from the fixed mold 810.

[0089] In this embodiment, the moving device 400 includes the hydraulic cylinder 430, but the present invention is not limited to this. 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 be used.

[0090] (Control device) The control device 700 is composed of, for example, a computer, and has a CPU (Central Processing Unit) 701, a storage medium 702 such as a memory, an input interface 703, and an output interface 704 as shown in FIGS. 1 and 2. The control device 700 performs various controls by causing the CPU 701 to execute a program stored in the storage medium 702. The control device 700 also receives signals from the outside through the input interface 703, and transmits signals to the outside through the output interface 704. Furthermore, the control device 700 may transmit and receive information to and from an information processing device (for example, a personal computer) using a communication interface (not shown).

[0091] The control device 700 repeatedly performs a metering process, a mold closing process, a pressure increase process, a mold clamping process, a filling process, a pressure holding process, a cooling process, a pressure release process, a mold opening process, and an ejection process, thereby repeatedly manufacturing a molded product. A series of operations for obtaining a molded product, for example, an operation from the start of a metering process to the start of the next metering process, is also called a "shot" or a "molding cycle." The time required for one shot is also called a "molding cycle time" or a "cycle time."

[0092] One molding cycle includes, for example, a metering process, a mold closing process, a pressure increase process, a mold clamping process, a filling process, a pressure holding process, a cooling process, a pressure release process, a mold opening process, and an ejection process, in this order. The order here refers to the order in which each process starts. The filling process, the pressure holding process, and the cooling process are performed during the mold clamping process. The start of the mold clamping process may coincide with the start of the filling process. The completion of the pressure release process coincides with the start of the mold opening process.

[0093] In addition, in order to shorten the molding cycle time, a plurality of processes may be performed simultaneously. For example, the metering process may be performed during the cooling process of the previous molding cycle, or during the mold clamping process. In this case, the mold closing process may be performed at the beginning of the molding cycle. The filling process may be started during the mold closing process. The ejection process may be started during the mold opening process. In the case where an opening / closing valve for opening and closing the flow path of the nozzle 320 is provided, the mold opening process may be started during the metering process. This is because even if the mold opening process is started during the metering process, the molding material will not leak from the nozzle 320 as long as the opening / closing valve closes the flow path of the nozzle 320.

[0094] One molding cycle may include steps other than the metering step, mold closing step, pressure increase step, mold clamping step, filling step, pressure holding step, cooling step, pressure release step, mold opening step, and ejection step.

[0095] For example, after the dwelling step is completed, a pre-metering suck-back step may be performed in which the screw 330 is retracted to a preset metering start position before the metering step is started. This can reduce the pressure of the molding material accumulated in front of the screw 330 before the metering step starts, and can prevent the screw 330 from suddenly retracting at the start of the metering step.

[0096] Furthermore, after the metering step is completed, a post-metering suck-back step may be performed in which the screw 330 is moved back to a preset filling start position (also called the "injection start position") before the filling step is started. This can reduce the pressure of the molding material accumulated in front of the screw 330 before the filling step is started, and can prevent the molding material from leaking from the nozzle 320 before the filling step is started.

[0097] The control device 700 is connected to an operation device 750 that accepts input operations by a user and a display device 760 that displays a screen. The operation device 750 and the display device 760 may be configured, for example, by a touch panel 770 and may be integrated. The touch panel 770 as the display device 760 displays a screen under the control of the control device 700. For example, the screen of the touch panel 770 may display information such as the settings of the injection molding machine 10 and the current state of the injection molding machine 10. The touch panel 770 is capable of accepting operations in the displayed screen area. In addition, for example, an operation unit such as a button or an input field that accepts an input operation by a user may be displayed in the screen area of ​​the touch panel 770. The touch panel 770 as the operation device 750 detects an input operation on the screen by the user and outputs a signal corresponding to the input operation to the control device 700. As a result, for example, the user can operate the operation unit provided on the screen while checking the information displayed on the screen to perform settings of the injection molding machine 10 (including input of a setting value), etc. Furthermore, the user can operate an operation unit provided on the screen to perform an operation of the injection molding machine 10 corresponding to the operation unit. The operation of the injection molding machine 10 may be, for example, the operation (including stopping) of the clamping device 100, the ejector device 200, the injection device 300, the moving device 400, etc. The operation of the injection molding machine 10 may be, for example, switching of a screen displayed on the touch panel 770 serving as the display device 760, etc.

[0098] In this embodiment, the operation device 750 and the display device 760 are described as being integrated as the touch panel 770, but they may be provided independently. Also, a plurality of operation devices 750 may be provided. The operation device 750 and the display device 760 are disposed on the operation side (Y-axis negative direction) of the mold clamping unit 100 (more specifically, the fixed platen 110).

[0099] (First embodiment) FIG. 3 is a diagram showing components of a control device 700 according to an embodiment in the form of functional blocks. Each functional block shown in FIG. 3 is conceptual, and does not necessarily have to be physically configured as shown in the figure. All or a part of each functional block can be functionally or physically distributed and integrated in any unit. All or any part of each processing function performed by each functional block is realized by a program executed by a CPU 701. Alternatively, each functional block may be realized as hardware using wired logic. As shown in FIG. 3, the control device 700 includes a receiving unit 712 and an output unit 713. The control device 700 also includes an information storage unit 711 in a storage medium 702.

[0100] The information storage unit 711 stores setting information set by the user, performance values ​​from various sensors, and log information indicating monitoring results or statistical values ​​from the control device 700.

[0101] The reception unit 712 receives a user's operation from the touch panel 770 via the input interface 703 .

[0102] The output unit 713 outputs data such as a display screen to the touch panel 770. The output unit 713 according to this embodiment outputs, for each step of the molding process by the injection molding machine 10, a display screen including setting information set by the user in that step, or waveform data (an example of waveform information) showing a waveform of a change due to an actual value detected in that step. Note that, although this embodiment describes an example in which a display screen or the like is output to the touch panel 770, the output destination of data is not limited to the touch panel 770. For example, the output unit 713 may output data such as a display screen to an information processing device connected via a network.

[0103] 4 is a diagram illustrating a display screen output by the output unit 713 of this embodiment. As shown in FIG. 4, the display screen 1400 shows an X-axis unit field 1401, a Y-axis unit field 1402, a waveform logging monitoring setting 1403, a monitoring range left 1404, a monitoring range right 1405, a 1 shot output field 1406, an X-axis field 1407, and a trigger (CH1-5) field 1408. Furthermore, the display screen 1400 shows five channel fields (a first channel field 1411 to a fifth channel field 1415), a waveform data field 1420, and a selection range display field 1430. In this embodiment, the channel field is a field for selecting an item to be displayed.

[0104] 4 displays setting information for each shot of the injection molding machine 10 and performance values ​​detected by various sensors. The display screen of this embodiment can also display the performance values ​​of the current shot in real time.

[0105] The receiving unit 712 receives a selection operation or an input operation for the above-mentioned fields via the touch panel 770. Then, the output unit 713 switches the display screen (for example, the waveform data field 1420 or the selection range display field 1430) displayed on the touch panel 770 in response to the received selection operation or input operation.

[0106] For example, the receiving unit 712 receives a selection operation or an input operation via the touch panel 770 for the X-axis unit column 1401, the Y-axis unit column 1402, the 1 shot output column 1406, and the X-axis column 1407. The output unit 713 switches the waveform data column 1420 to be displayed in response to the received selection operation.

[0107] The X-axis unit field 1401 is a field for selecting a unit to be displayed on the X-axis of the waveform data field 1420. For example, "time" or "screw position" can be selected. The Y-axis unit field 1402 is a field for selecting a unit to be displayed on the Y-axis of the waveform data field 1420. For example, "ratio" or "engineering unit" can be selected from the Y-axis unit field 1402. The 1 shot output field 1406 is a button for saving information about a shot including a process currently displayed in the waveform data field 1420 etc. The X-axis field 1407 is a field for setting the range of the X-axis (for example, time) to be displayed in the waveform data field 1420.

[0108] The waveform logging monitor setting 1403 is a field for setting whether or not information indicating the processing result by the injection molding machine 10 is to be stored in the information storage unit 711. In this embodiment, when the waveform logging monitor setting 1403 is pressed (when the display is "ON"), the output unit 713 performs control to store information in the information storage unit 711.

[0109] The monitoring range left 1404 is a field for setting the left end (display start position) on the X axis of the waveform data field 1420 in order to set the range to be displayed in the selection range display field 1430. In this embodiment, the monitoring range left 1404 and a left slider (an example of instruction information) 1426 displayed in the waveform data field 1420 are linked. The left slider 1426 indicates the left end (display start position) on the X axis for setting the range of the selection range display field 1430. When a numerical value is input into the monitoring range left 1404, the output unit 713 generates and outputs a display screen in which the left slider 1426 operates according to the numerical value.

[0110] The monitoring range right 1405 is a field for setting the right end (display end position) on the X axis of the waveform data field 1420 in order to set the range to be displayed in the selection range display field 1430. In this embodiment, the monitoring range right 1405 and a right slider (an example of instruction information) 1427 displayed in the waveform data field 1420 are linked. The right slider 1427 indicates the right end (display end position) on the X axis for setting the range of the selection range display field 1430. When a numerical value is input into the monitoring range right 1405, the output unit 713 generates and outputs a display screen in which the right slider 1427 operates according to the numerical value.

[0111] The trigger (CH1-5) column 1408 is a column for selecting a process to be displayed in the waveform data column 1420. The trigger (CH1-5) column 1408 according to this embodiment is, for example, in a menu format. The user performs an operation via the touch panel 770 to select a process to be displayed from a menu displaying a plurality of processes. This updates the process displayed in the trigger (CH1-5) column 1408.

[0112] In Fig. 4, it is assumed that the process "start filling" is selected (set) in the trigger (CH1-5) column 1408. In the example shown in Fig. 4, the output unit 713 outputs the display screen shown in the waveform data column 1420, showing the waveform data of each item set in the five channel columns (first channel column 1411 to fifth channel column 1415) in the process "start filling".

[0113] 4, it is assumed that "start filling" is selected (set) in the trigger (CH1-5) field 1408. The output unit 713 outputs a display screen showing a waveform data field 1420 including waveform data for each item set in the five channel fields (first channel field 1411 to fifth channel field 1415) in the process "start filling".

[0114] The five channel columns (first channel column 1411 to fifth channel column 1415) are columns for selecting items to be displayed as waveform data in the waveform data column 1420. That is, in this embodiment, five pieces of waveform data relating to the items assigned to each channel can be displayed in the waveform data column 1420.

[0115] The first channel column 1411 is a column for setting items for Ch-1. An item to be displayed is set in the item column 1411A, a maximum value (an example of scale information) to be displayed as waveform data for the item for Ch-1 is set in the maximum value column 1411B, and a minimum value (an example of scale information) to be displayed as waveform data for the item for Ch-1 is set in the minimum value column 1411C.

[0116] When item column 1411A is pressed via touch panel 770, output unit 713 outputs a menu screen displaying a plurality of items. Then, receiving unit 712 receives a selection of an item to be set for Ch-1 from the menu screen. The same is true for item columns 1412A to 1415A, and description thereof will be omitted.

[0117] The maximum value column 1411B and the minimum value column 1411C are columns into which a numerical value can be input. The receiving unit 712 receives an input of a numerical value set in the maximum value column 1411B or the minimum value column 1411C via the touch panel 770. 41 The same applies to 2C to 1415C, and the explanation will be omitted.

[0118] Each channel column can be set to "ON" or "OFF." "ON" indicates that the waveform data for that item is displayed, and "OFF" indicates that the waveform data for that item is not displayed.

[0119] 4, the item field 1411A is set with "detected injection speed", the maximum value field 1411B is set with "100.00", and the minimum value field 1411C is set with "-100.00". "Detected injection speed" indicates the injection speed of the screw 330 detected by the injection motor encoder 351.

[0120] The second channel column 1412 is a column for setting items for Ch-2. An item to be displayed is set in the item column 1412A, a maximum value (an example of scale information) to be displayed as waveform data for the item for Ch-2 is set in the maximum value column 1412B, and a minimum value (an example of scale information) to be displayed as waveform data for the item for Ch-2 is set in the minimum value column 1412C.

[0121] 4, the item field 1412A is set to "holding pressure detection," the maximum value field 1412B is set to "100.00," and the minimum value field 1412C is set to "-100.00." "Holding pressure detection" indicates the value of the holding pressure detected by the load detector 360.

[0122] The third channel column 1413 is a column for setting items for Ch-3. An item to be displayed is set in the item column 1413A, a maximum value (an example of scale information) to be displayed as waveform data for the item for Ch-3 is set in the maximum value column 1413B, and a minimum value (an example of scale information) to be displayed as waveform data for the item for Ch-3 is set in the minimum value column 1413C.

[0123] 4, the item field 1413A is set to "mold clamping force detection," the maximum value field 1413B is set to "200.00," and the minimum value field 1413C is set to "0.00." "Mold clamping force detection" indicates the mold clamping force detected by the tie bar strain detector 141.

[0124] The fourth channel column 1414 is a column for setting items for Ch-4. An item to be displayed is set in the item column 1414A, a maximum value (an example of scale information) to be displayed as waveform data for the item for Ch-4 is set in the maximum value column 1414B, and a minimum value (an example of scale information) to be displayed as waveform data for the item for Ch-4 is set in the minimum value column 1414C.

[0125] In the example shown in Fig. 4, the item field 1414A is set to "rotation detection", the maximum value field 1414B is set to "200.00", and the minimum value field 1414C is set to "0.00". "Rotation detection" is an example in which the rotation of the screw 330 detected by the metering motor encoder 341 is detected. Rotational speed of This shows that.

[0126] The fifth channel column 1415 is a column for setting an item for Ch-5. An item to be displayed is set in the item column 1415A, a maximum value (an example of scale information) to be displayed as waveform data for the Ch-5 item is set in the maximum value column 1415B, and a minimum value column 1415C is set to a maximum value (an example of scale information) to be displayed as waveform data for the Ch-5 item. The minimum value (an example of scale information) is set. .

[0127] 4, the item field 1415A is set to "detected back pressure", the maximum value field 1415B is set to "100.00", and the minimum value field 1415C is set to "0.00". "Detected back pressure" indicates the back pressure of the screw 330 detected by the load detector 360.

[0128] The waveform data column 1420 in FIG. 4 displays waveform data showing, as waveforms, the values ​​(changes in actual values ​​or changes in setting information) for each item set in each of the five channel columns (first channel column 1411 to fifth channel column 1415) in the process selected in the trigger (CH1-5) column 1408.

[0129] Waveform data 1421 in the waveform data column 1420 indicates changes in the detection result (an example of a performance value) of the "injection speed detection" set in the first channel column 1411 (Ch-1).

[0130] The maximum value of the waveform data field 1420 for displaying the waveform data 1421 is the value set in the maximum value field 1411B, and the minimum value of the waveform data field 1420 for displaying the waveform data 1421 is the value set in the minimum value field 1411C. Set to The maximum and minimum values ​​of the waveform data displayed in the waveform data field 1420 are the same in the following cases, and a description thereof will be omitted.

[0131] Waveform data 1422 indicates a change in the detection result (an example of a performance value) of the "pressure holding detection" set in the second channel column 1412 (Ch-2).

[0132] Waveform data 1423 indicates a change in the detection result (an example of a performance value) of the "mold clamping force detection" set in the third channel column 1413 (Ch-3).

[0133] Waveform data 1424 indicates a change in the detection result (an example of a performance value) of the "rotation detection" set in the fourth channel column 1414 (Ch-4).

[0134] Waveform data 1425 indicates a change in the detection result (an example of a performance value) of the "back pressure detection" set in the fifth channel column 1415 (Ch-5).

[0135] The receiving unit 712 according to this embodiment receives the selection of an item for each of the item columns 1411A to 1415A of the respective channel columns as information to be displayed for the process selected in the trigger (CH1-5) column 1408.

[0136] When the receiving unit 712 receives the selection of an item, the output unit 713 displays in the waveform data field 1420 waveform data indicating a change in the setting information or detection result of the selected item.

[0137] Additionally, the output section 713 displays, within the waveform data field 1420, a left slider 1426 (the start value on the left side of the X-axis of the waveform data field 1420) and a right slider 1427 (the end value on the right side of the X-axis of the waveform data field 1420).

[0138] When the accepting unit 712 accepts an operation of sliding rightward or leftward from the touch panel 770, the output unit 713 displays the left slider 1426 moved rightward or leftward in the waveform data field 1420. The numerical value displayed in the monitoring range left 1404 changes according to the numerical value indicated by the moved left slider 1426.

[0139] When the accepting unit 712 accepts an operation of sliding rightward or leftward from the touch panel 770, the output unit 713 displays the right slider 1427 moved rightward or leftward in the waveform data field 1420. The numerical value displayed in the monitoring range right 1405 changes according to the numerical value indicated by the moved right slider 1427.

[0140] The selection range display field 1430 displays, in a list, the statistical values, start values, end values, etc. for each item set in each channel field within the range set by the left slider 1426 and the right slider 1427 .

[0141] 4, the statistical values ​​of the items set for each of the channels (Ch-1 to Ch-5), such as the start value (Start) at the left end, the maximum value (Max) within the range, the integral value (Int) within the range, the average value (Ave) within the range, the minimum value (Min) within the range, and the end value (End) at the right end, are displayed. Note that the statistical values ​​for each item displayed in the selection range display field 1430 are shown as an example, and other statistical values ​​may be displayed.

[0142] Specifically, the selection range display field 1430 displays the start value (Start) at the left end, the maximum value (Max) within the range, the integral value (Int) within the range, the average value (Ave) within the range, the minimum value (Min) within the range, and the end value (End) at the right end, within the range from the start value of the X-axis indicated by the left slider 1426 to the end value of the X-axis indicated by the right slider 1427, for "injection speed detection" set to "Ch-1."

[0143] In addition, the "holding pressure detection" set to "Ch-2", the "clamping force detection" set to "Ch-3", the "rotation detection" set to "Ch-4", and the "back pressure detection" set to "Ch-5" shown in the selection range display field 1430 are similar to "Ch-1" and will not be described.

[0144] By calculating the integral value (Int) of the "detected back pressure", the output unit 713 can display the total pressure applied to the resin or the like within a specified range. This allows the control device 700 according to this embodiment to judge whether or not there is a defect based on the total pressure applied to the resin (for example, whether or not the integral value is equal to or greater than a predetermined reference value Pth).

[0145] In this embodiment, the output unit 713 displays the change over time of the performance values ​​and the like in the set process in a waveform data field 1420. The user visually checks the waveform data field 1420 and specifies the X-axis range (e.g., time period) that the user wishes to check using a left slider 1426 and a right slider 1427 (monitoring range left 1404 and monitoring range right 1405) via the touch panel 770.

[0146] That is, there are cases where the range (for example, time period) that the user wants to monitor in an arbitrary process is limited. For example, there are cases where the pressure related to the resin when passing through the gate of the mold device 800 is to be detected in the "injection start" process of injecting the resin. In such a case, the left slider 1426 and the right slider 1427 are used to specify the time period when the resin passes through the gate based on the position of the screw 330 displayed in the waveform data field 1420. Then, the item "back pressure detection" is set to an arbitrary channel. This allows the output unit 713 to display statistical values, etc. when the resin passes through the gate in the selection range display field 1430. Then, the user can judge whether the molded product is appropriate or not by visually checking the selection range display field 1430. Such settings differ depending on the mold device 800, so the user needs to specify them. In contrast, the control device 700 according to this embodiment can display statistical values, etc., in an arbitrary range for items desired by the user by using the above-mentioned configuration.

[0147] Furthermore, even when it is desired to monitor the minimum value, maximum value, or total (integral) value of the resin-related pressure of any item within a limited range, the range can be specified by the left slider 1426 and the right slider 1427 as described above, thereby making it possible to monitor the minimum value, maximum value, or total (integral) value of the resin-related pressure. Furthermore, by setting a judgment criterion for the statistical values ​​within the range, it becomes possible to judge whether the molded product is defective or not. For example, if the total pressure value output is not equal to or exceeds a predetermined criterion two seconds after injection, it can be judged to be a defective product. The method of setting the judgment will be described later with reference to FIG. 7.

[0148] In this embodiment, the user performs a sliding operation on left slider 1426 and right slider 1427 displayed on the display screen displayed on touch panel 770. As a result, reception unit 712 receives a movement operation of at least one of left slider 1426 and right slider 1427. In this embodiment, the range for calculating statistical values ​​can be specified by a movement operation on left slider 1426 and right slider 1427 displayed on touch panel 770. In other words, in this embodiment, the range can be specified by an intuitive operation by the user, thereby reducing the operational burden.

[0149] The trigger (CH1-5) field 1408 is a field for selecting a process to be displayed in the waveform data field 1420. The trigger (CH1-5) field 1408 according to the present embodiment is in the form of a menu. The reception unit 712 receives an operation via the touch panel 770 to select a process to be displayed from among a plurality of processes shown on the menu screen.

[0150] When the output unit 713 of this embodiment receives an operation to select a process, it outputs a display screen in which the waveform data of the items selected in the item columns 1411A to 1415A in the process set in the trigger (CH1-5) column 1408 is displayed in the waveform data column 1420.

[0151] 4, an example has been described in which the range in the X-axis direction (time) is specified by the left slider 1426 and the right slider 1427. However, this embodiment is not limited to the example of specifying the range in the X-axis direction (time), and the range in the Y-axis direction (time) may be specified by a plurality of sliders (e.g., an upper slider and a lower slider). For example, by specifying a value in the Y-axis direction (actual value or setting information) by a slider or the like, the output unit 713 may output a list showing, for each item, the value in the X-axis direction (e.g., time) when the specified value is reached.

[0152] The example shown in Fig. 4 shows a display screen for the process "start filling". This embodiment can also be applied to processes other than the process "start filling". Furthermore, while Fig. 4 shows an example in which items are assigned to Ch-1 to Ch-5, items may also be assigned to other channels (e.g., Ch-6 to Ch-10). This makes it possible to monitor 10 items during molding of a molded product.

[0153] 5 is a diagram illustrating a display screen output by the output unit 713 of this embodiment. As shown in FIG. 5, the display screen 1500 shows an X-axis unit field 1501, a Y-axis unit field 1502, a waveform logging monitoring setting 1503, a monitoring range left 1504, a monitoring range right 1505, a 1 shot output field 1506, an X-axis field 1507, and a trigger (CH6-10) field 1508. Furthermore, the display screen 1500 shows five channel fields (a sixth channel field 1511 to a tenth channel field 1515), a waveform data field 1520, and a selection range display field 1530. In this embodiment, the channel field is a field for selecting an item to be displayed.

[0154] Note that an X-axis unit field 1501, a Y-axis unit field 1502, a waveform logging monitoring setting 1503, a 1 shot output field 1506, an X-axis field 1507, and a trigger (CH6-10) field 1508 are similar to the X-axis unit field 1401, the Y-axis unit field 1402, the waveform logging monitoring setting 1403, the 1 shot output field 1406, the X-axis field 1407, and the trigger (CH1-5) field 1408 shown in Fig. 4, and therefore their explanations will be omitted. Also, a monitoring range left 1504 and a monitoring range right 1505 are similar to the monitoring range left 1404 and the monitoring range right 1405 in Fig. 4, and therefore their explanations will be omitted.

[0155] In this example, “rotation setting” is set in the item field 1511A, “100.00” is set in the maximum value field 1511B, and “−100.00” is set in the minimum value field 1511C. “Rotation setting” indicates the setting of the rotation speed of the screw 330.

[0156] In this example, "rotation detection" is set in the item field 1512A, "100.00" is set in the maximum value field 1512B, and "-100.00" is set in the minimum value field 1512C. "Rotation detection" indicates the rotation speed of the screw 330 detected by the metering motor encoder 341.

[0157] In this example, the item field 1513A is set to “back pressure setting”, the maximum value field 1513B is set to “25.00”, and the minimum value field 1513C is set to “0.00”. The “back pressure setting” indicates the setting of the back pressure for the screw 330.

[0158] In this example, the item field 1514A is set to “detected back pressure”, the maximum value field 1514B is set to “25.00”, and the minimum value field 1514C is set to “0.00”. “Detected back pressure” indicates the back pressure of the screw 330 detected by the load detector 360.

[0159] In this example, "screw position detection" is set in the item field 1515A, "100.00" is set in the maximum value field 1515B, and "0.00" is set in the minimum value field 1515C. "Screw position detection" indicates the position of the screw 330 detected by the injection motor encoder 351.

[0160] The waveform data column 1520 in FIG. 5 displays waveform data showing, as waveforms, the values ​​(changes in actual values ​​or changes in setting information) for each item set in each of the five channel columns (the sixth channel column 1511 to the tenth channel column 1515) in the process “start of measurement” set in the trigger (CH6-10) column 1508.

[0161] Waveform data 1521 in the waveform data column 1520 indicates the setting information of the "rotation setting" set in the sixth channel column 1511 (Ch-6). Waveform data 1522 indicates the change in the detection result (an example of the actual value) of the "rotation detection" set in the seventh channel column 1512 (Ch-7).

[0162] Waveform data 1523 indicates the setting information of "back pressure setting" set in the eighth channel field 1513 (Ch-8). Waveform data 1524 indicates the change in the detection result (an example of the actual value) of "back pressure detection" set in the ninth channel field 1514 (Ch-9).

[0163] Waveform data 1525 indicates a change in the detection result (an example of a performance value) of the "screw position detection" set in the 10th channel column 1515 (Ch-10).

[0164] The selection range display field 1530 displays the leftmost value (Start), the maximum value within the range (Max), the integral value within the range (Int), the average value within the range (Ave), the minimum value within the range (Min), and the rightmost value (End) for the items set for each channel (Ch-6 to Ch-10).

[0165] When the receiving unit 712 receives a rightward or leftward operation from the touch panel 770, the output unit 713 displays the left slider 1526 in the waveform data field 1520 moved rightward or leftward.

[0166] When the receiving unit 712 receives a rightward or leftward operation from the touch panel 770, the output unit 713 displays the right slider 1527 in the waveform data field 1520 as having been moved rightward or leftward.

[0167] The selection range display field 1530 is a field that displays, in a list, the statistical values, start values, end values, etc. for each item set in each channel field within the range set by the left slider 1526 and the right slider 1527.

[0168] Next, a control procedure performed when accepting designation of a range to be designated in the selection range display field in the control device 700 according to the first embodiment will be described. Fig. 6 is a flowchart showing the control performed when accepting designation of a range to be designated in the selection range display field in the control device 700 according to the first embodiment.

[0169] First, the output unit 713 of the control device 700 outputs (displays) on the touch panel 770 a display screen showing a waveform data column including waveform data for each item and two sliders, and a selection range display column, for any process (S1601).

[0170] The receiving unit 712 receives a movement operation of one or more of the left slider and the right slider shown in the waveform data column (S1602). Note that the receiving unit 712 may also receive an input of a numerical value for one or more of the left monitoring range and the right monitoring range.

[0171] If a move operation is accepted (S1602: Yes), the output unit 713 outputs (displays) a display screen including a selection range display field showing setting information and statistical values ​​for each item in the range specified in S1602 (S1603). After that, the process is performed from S1602.

[0172] On the other hand, if the receiving unit 712 has not received any movement operation of one or more of the left slider and the right slider shown in the waveform data column (if there is no movement operation) (S1602: No), the process ends.

[0173] In this embodiment, the output unit 713 stores actual values, setting information, statistical values, etc. during molding as log information in the information storage unit 711. Settings for saving as log information are made on the log information screen.

[0174] 7 is a diagram illustrating a log information screen output by the output unit 713 according to the present embodiment. The output unit 713 according to the present embodiment stores the performance values ​​and the like from various sensors in the information storage unit 711 according to the settings on the log information screen.

[0175] In the log information screen 1700 shown in FIG. 7, a total number 1701, a number of good products 1702, and a number of defective products are displayed. Product 17, a number of rejected applications 1703, a number of rejected applications 1704, a save data button 1705, a monitor settings button 1706, a statistics list 1710, and a performance list 1720 are shown.

[0176] The statistics list 1710 shows statistical values ​​(for example, average, range, maximum, minimum, integral value, standard deviation, etc.) for each of the setting fields 1711 to 1717. The contents shown in the setting fields 1711 to 1717 can be set by the user. In this embodiment, it is possible to display, monitor, and save log information for the items shown in the setting fields 1711 to 1717. Note that monitoring in this embodiment refers to judging whether or not an item is non-defective based on a predetermined standard.

[0177] The "monitoring", "monitoring value", and "range" in the statistics list 1710 are information for determining whether or not the molded product in the corresponding setting field is defective.

[0178] The output unit 713 indicates that monitoring is not performed when monitoring is "OFF" and is performed when monitoring is "ON". When it is "ON", the output unit 713 judges whether or not the measured performance value for the item indicated in the setting field satisfies the criteria indicated in the "monitoring value" and "range".

[0179] The "Defective" section of the statistics table 1710 indicates the number of molded articles that do not meet the criteria indicated by the "Monitoring Value" and "Range."

[0180] The "Cycle Time" in setting field 1711, the "Filling Time" in setting field 1712, and the "Weighing Time" in setting field 1713 are pre-set items that are set as items for monitoring the time required for the cycle, filling, and metering.

[0181] The reception unit 712 receives changes to the setting fields 1711 to 1717 to the items displayed in the selection range display fields 1430 and 1530 shown in FIGS.

[0182] "Start filling Ch-1 Ave" in setting field 1714, "Start filling Ch-5 Int" in setting field 1715, "Start metering Ch-9 Int" in setting field 1716, and "Start metering Ch-10 Start" in setting field 1716 show examples of accepting changes to the items represented in the selection range display fields 1430 and 1530.

[0183] For example, "Start of filling Ch-1 Ave" is set as an item that monitors the "Ave" of "Ch-1." The same is true for "Start of filling Ch-5 Int" and "Start of metering Ch-9 Int."

[0184] The data save button 1705 is a button for accepting whether or not to save the statistical values ​​(for example, average, range, maximum, minimum, integral value, standard deviation, etc.) for each of the setting fields 1711 to 1717. When the data save button 1705 is pressed (displays "DATA SAVING ON"), the output unit 713 saves the statistical values ​​for each of the setting fields 1711 to 1717 during molding in the information storage unit 711. In this embodiment, it becomes easy to save the statistical values ​​within the range arbitrarily set by the user, which facilitates quality control.

[0185] The monitoring setting button 1706 is a button for accepting whether or not to monitor according to the monitoring items in the setting field 1711. When the monitoring setting button 1706 is pressed (displaying "Monitoring On"), the output unit 713 stores the statistical values ​​and the like for each of the setting fields 1711 to 1717 in the information storage unit 711 as log information.

[0186] Total number 1701 indicates the number of molded products molded by the injection molding machine 10. Number of good products 1702 indicates the number of molded products that have been determined to be good products based on "Monitoring", "Monitoring value", and "Range". Number of defective products 1703 indicates the number of molded products that have been determined to be defective products based on "Monitoring", "Monitoring value", and "Range". Number of rejected products 1704 indicates the number of rejected molded products.

[0187] The result list 1720 shows a list of setting information or result values ​​measured by various sensors for each shot in each channel "Ch-1" to "Ch-10". The output unit 713 also stores the information shown in the result list 1720 in the information storage unit 711.

[0188] The control device 700 of this embodiment has the above-mentioned configuration, so that when a user wants to check detailed information about an arbitrary range of the waveform data displayed in the waveform data column, the arbitrary range can be easily selected by operating the left and right sliders displayed in the waveform data column via the touch panel, thereby reducing the operational burden on the user when displaying detailed information within the arbitrary range.

[0189] Second Embodiment In the above-mentioned embodiment, an example in which waveform data related to one process is displayed on the display screen has been described. However, the control device 700 is not limited to the above-mentioned display mode. Therefore, in the second embodiment, an example in which a waveform data column is displayed in a different area for each of a plurality of processes will be described. Note that the configuration of the control device 700 in the second embodiment is the same as that in the first embodiment, and therefore the description thereof will be omitted.

[0190] When the receiving unit 712 receives an operation to display two processes, the output unit 713 according to this embodiment displays a display screen including waveform data columns for two processes.

[0191] Fig. 8 is a diagram showing an example of a display screen output by the output unit 713 of this embodiment. As shown in Fig. 8, a display screen 1800 displays a waveform data field 1820 for the process "start filling" and a waveform data field 1870 for the process "start measuring". As shown in Fig. 8, in this embodiment, the waveform data fields 1820 and 1870 for multiple processes are arranged in different areas.

[0192] Display screen 1800 shows an X-axis unit field 1801 for the first process (e.g., "start filling"), a Y-axis unit field 1802, a left monitoring range 1803, a right monitoring range 1804, a trigger (CH1-5) field 1806, and an X-axis field 1805. These items are the same as in the first embodiment, so the explanation will be omitted.

[0193] Five channel columns (first channel column 1811 to fifth channel column 1815) for the first process (eg, "start filling"), a waveform data column 1820, and a selection range display column 1830 are shown.

[0194] The five channel columns (first channel column 1811 to fifth channel column 1815) are similar to the channel columns (first channel column 1411 to fifth channel column 1415) shown in FIG. 4 of the first embodiment, and a description thereof will be omitted.

[0195] Waveform data 1821 to 1825 shown in a waveform data column 1820 indicate changes in the setting information of each item shown in a first channel column 1811 to a fifth channel column 1815, or changes in the performance values.

[0196] Furthermore, the output section 713 displays a left slider 1826 and a right slider 1827 within the waveform data field 1820 .

[0197] When the accepting unit 712 accepts an operation of sliding rightward or leftward from the touch panel 770, the output unit 713 displays the left slider 1826 moved rightward or leftward in the waveform data field 1820. The numerical value displayed in the monitoring range left 1803 changes according to the numerical value indicated by the moved left slider 1826.

[0198] When the accepting unit 712 accepts an operation of sliding rightward or leftward from the touch panel 770, the output unit 713 displays the right side slider 1827 moved rightward or leftward in the waveform data field 1820. The numerical value displayed in the monitoring range right 1804 changes according to the numerical value indicated by the moved right side slider 1827.

[0199] The selection range display field 1830 is a field that displays, in a list, the statistical values, start values, end values, etc. for each item set in each channel field within the range set by the left slider 1826 and the right slider 1827.

[0200] Display screen 1800 shows an X-axis unit field 1851 for the second step (for example, "measurement start"), a Y-axis unit field 1852, a monitoring range left 1853, a monitoring range right 1854, a trigger (CH6-10) field 1856, and an X-axis field 1855. These items are similar to those in the first embodiment, so the explanation will be omitted.

[0201] Five channel columns (a sixth channel column 1861 to a tenth channel column 1865) for the second step (for example, "measurement start"), a waveform data column 1870, and a selection range display column 1880 are shown.

[0202] The five channel columns (sixth channel column 1861 to tenth channel column 1865) are similar to the channel columns (sixth channel column 1511 to tenth channel column 1515) shown in FIG. 5 of the first embodiment, and therefore a description thereof will be omitted.

[0203] Waveform data 1871 to 1875 displayed in a waveform data column 1870 indicate changes in the setting information of each item indicated in a sixth channel column 1861 to a tenth channel column 1865, or changes in the performance values.

[0204] Additionally, the output section 713 displays a left slider 1876 and a right slider 1877 within the waveform data field 1870 .

[0205] When the accepting unit 712 accepts an operation of sliding rightward or leftward from the touch panel 770, the output unit 713 displays the left side slider 1876 moved rightward or leftward in the waveform data field 1870. The numerical value displayed in the monitoring range left 1853 changes according to the numerical value indicated by the moved left side slider 1876.

[0206] When the accepting unit 712 accepts an operation of sliding rightward or leftward from the touch panel 770, the output unit 713 displays the right side slider 1877 moved rightward or leftward in the waveform data field 1870. The numerical value displayed in the monitoring range right 1854 changes according to the numerical value indicated by the moved right side slider 1877.

[0207] The selection range display field 1880 is a field that displays, in a list, the statistical values, start values, end values, etc. for each item set in each channel field within the range set by the left slider 1876 and the right slider 1877.

[0208] In this embodiment, a range can be set for each of the waveform data field 1820 for the first process (e.g., "start filling") and the waveform data field 1870 for the second process (e.g., "start metering"). This allows the user to specify a range while checking the related processes with each other, thereby reducing the operational burden.

[0209] For example, by checking the statistical value of "backpressure detection" measured at the time of "filling start" while referring to the integral value of "backpressure detection" whose range is specified at the time of "metering start", the user can recognize the correspondence between the backpressure at the time of metering and the pressure at the time of filling.

[0210] Also, multiple waveform data columns may be displayed for one process. In this case, multiple ranges (for example, 0 to 2 seconds and 0 to 5 seconds) can be specified for one process. This allows the display of statistics under various conditions, improving quality control.

[0211] The output unit 713 of the control device 700 according to the embodiment described above outputs a display screen including a selection range display field showing setting information and statistical values ​​of each item, which is indicated by a range specified by the left slider and the right slider. The information shown in the selection range display field can also be saved as log information.

[0212] The control device 700 according to the embodiment described above can accept range setting while referring to the waveform data displayed in the waveform data column by using the left and right sliders in the waveform data column, making it easy for the user to set the desired range to be monitored. The control device 700 displays information on the set range in the selected range display column, allowing the user using the control device 700 to properly grasp the status of the range, thereby enabling more detailed quality control of molded products to be realized. The control device 700 can realize detailed quality control, thereby suppressing variations in the quality of molded products and improving the reliability of the molded products.

[0213] The control device 700 according to the embodiment described above accepts operations on the left slider 1426 and the right slider 1427 via the touch panel 770. Since the control device 700 accepts operations on the left slider 1426 and the right slider 1427 displayed on the touch panel 770 via the touch panel 770, it is easier to intuitively specify the range of statistical values ​​compared to directly inputting numerical values ​​into a text field, and therefore the operational burden can be reduced.

[0214] The control device 700 according to the embodiment described above can reduce memory capacity by designating a monitoring range and suppressing the display of information such as setting information and statistical values ​​outside the designated range when displaying the setting information and statistical values ​​within the designated range in a selection range display field. Furthermore, the control device 700 can save information included in the designated monitoring range as log information. Existence On the other hand, since information outside the range to be monitored is not stored, storage of unnecessary information can be suppressed, and the capacity of the information storage unit 711 can be reduced.

[0215] In the above-described embodiment, an example has been described in which a touch panel 770 is used as a display input device that is an integrated device of a display device and an input device, is capable of receiving operations in a screen area displayed by the display device, and is connected to the injection molding machine 10. However, the above-described embodiment does not limit the display input device to the touch panel 770, but may be any display input device that is connected to the injection molding machine 10 and is capable of receiving operations in a screen area. As the display input device, for example, a smartphone or a tablet terminal that can be connected to the injection molding machine 10 by wireless communication or the like is conceivable.

[0216] Furthermore, the screen area in which the display input device accepts operations is not limited to the display screen of the above-mentioned touch panel 770. The display input device may be any device capable of accepting operations on a displayed screen, etc., and may accept operations on an area (one example of a screen area) in which virtually expanded visual information is displayed using XR, such as VR (Virtual Reality), AR (Augmented Reality), or MR (Mixed Reality).

[0217] Although the embodiment of the injection molding machine according to the present invention has been described above, the present invention is not limited to the above embodiment. Various changes, modifications, substitutions, additions, deletions, and combinations are possible within the scope of the claims. Naturally, these also fall within the technical scope of the present invention. [Explanation of symbols]

[0218] 10 injection molding machine 700 Control device 711 Information storage unit 712 Reception Department 713 Output section

Claims

1. an output unit which is an apparatus in which a display device and an input device are integrated and which is capable of receiving operations on a screen area displayed by the display device, and which outputs to the display input device connected to the injection molding machine a display screen which shows setting information indicating settings of an injection molding process and waveform information indicating one or more changes of actual values ​​due to the process, first instruction information for setting a start value of a range of the waveform information, and second instruction information for setting an end value of the range of the waveform information; a reception unit that receives, from the display input device, individual operations for the first instruction information and the second instruction information displayed on the display screen; A control device for an injection molding machine having the above-mentioned.

2. An apparatus integrating a display device and an input device, capable of receiving operations on a screen area displayed by said display device, and an output section which outputs to a display input device connected to an injection molding machine a display screen showing setting information indicating the settings of an injection molding process, waveform information indicating one or more changes in the actual values ​​due to said process, and a plurality of instruction information for setting the range of said waveform information; a reception unit that receives, from the display input device, an operation on any one or more of the plurality of pieces of instruction information displayed on the display screen, the plurality of pieces of instruction information are pieces of information instructing start and end values ​​of a range for calculating a statistical value in the setting information or the performance value of the process, the accepting unit accepts an operation for specifying a first range for calculating the statistical value in the setting information of the process or the performance value of the process, by an operation on the plurality of pieces of instruction information; the output unit outputs, to the display input device, the statistical value of the setting information of the process or the performance value of the process that is included in the first range specified by the operation; the receiving unit is configured to receive an operation for specifying a second range for calculating the statistical value in the setting information of the process or the performance value of the process by an operation on the plurality of pieces of instruction information after the statistical value in the setting information of the process or the performance value of the process, the second range being included in the first range, Injection molding machine control device.

3. The output unit outputs a screen in which the waveform information is displayed in a different area for each of the plurality of processes to the display input device. The control device for an injection molding machine according to claim 1 or 2.

4. A display input device; an output unit that outputs to the display input device a display screen showing setting information indicating settings of an injection molding process and waveform information indicating at least one change in the actual values ​​due to the process, first instruction information for setting a start value of a range of the waveform information, and second instruction information for setting an end value of the range of the waveform information; a reception unit that receives, from the display input device, individual operations for the first instruction information and the second instruction information displayed on the display screen; An injection molding machine having

5. A display input device, an output unit that outputs to the display input device a display screen showing setting information indicating settings of an injection molding process, waveform information indicating at least one change in the actual values ​​due to the process, and a plurality of instruction information for setting a range of the waveform information; a reception unit that receives, from the display input device, an operation on any one or more of the plurality of pieces of instruction information displayed on the display screen, the plurality of pieces of instruction information are pieces of information instructing start and end values ​​of a range for calculating a statistical value in the setting information or the performance value of the process, the accepting unit accepts an operation for specifying a first range for calculating the statistical value in the setting information of the process or the performance value of the process, by an operation on the plurality of pieces of instruction information; the output unit outputs, to the display input device, the statistical value of the setting information of the process or the performance value of the process that is included in the first range specified by the operation; the receiving unit is configured to receive an operation for specifying a second range for calculating the statistical value in the setting information of the process or the performance value of the process by an operation on the plurality of pieces of instruction information after the statistical value in the setting information of the process or the performance value of the process, the second range being included in the first range, Injection molding machine.

6. a display device and an input device integrated together, capable of receiving operations in a screen area displayed by the display device, and outputting to the display input device connected to an injection molding machine a display screen showing setting information indicating settings for an injection molding process and waveform information indicating one or more changes in the actual values ​​due to the process, first instruction information for setting a start value of a range of the waveform information, and second instruction information for setting an end value of the range of the waveform information; receiving, from the display input device, individual operations for the first instruction information and the second instruction information displayed on the display screen; A program for causing a computer to execute the following.

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