DE102022132676A1 - CONTROL DEVICE OF INJECTION MOLDING MACHINE AND DISPLAY DEVICE - Google Patents

Abstract

A burden of setting for injection molding is reduced. A control device of an injection molding machine according to an embodiment of the present disclosure includes: a receiving unit (711) that receives setting information representing a setting for performing injection molding; an acquisition unit (714) that acquires measurement information measured while the injection molding is performed using the setting information; and a storage medium (702) storing a trained model (TM) for outputting modification setting information obtained by modifying the setting represented in the setting information by inputting the measurement information acquired by the acquiring unit (714).

Description

BACKGROUND OF THE INVENTION

field of invention

The present disclosure relates to a control device of an injection molding machine and a display device.

Description of the prior art

An injection molding machine includes a cylinder to which resin pellets are supplied as a molding material, and a heater that heats the cylinder to melt the resin pellets. The injection molding machine produces a molded product by melting the resin pellets inside the cylinder and filling a cavity space inside a mold unit with the molten resin.

In the prior art, in an injection molding machine for producing a molded product, it is necessary to perform adjustment for injection molding. To perform the adjustment, the molded product made with the adjustment is checked, and the adjustment is repeatedly readjusted to derive an appropriate adjustment. The adjustment must therefore be carried out by a specialist with time and effort.

SUMMARY OF THE INVENTION

However, in recent years, there has been a trend towards the development of artificial intelligence as computing power of computers has been improved. Japanese Unexamined Patent Publication No. 2020-49929 for example, proposes a technique that uses machine learning to determine a setting for injection molding based on the quality of a molded product. In the case disclosed in Japanese Unexamined Patent Publication No. 2020-49929 However, the technique described above needs to measure the quality of the molded product, resulting in much labor.

In view of the above problems, therefore, it is an object to provide a technique for reducing a burden of setting for injection molding by deriving setting for molds according to information measured while injection molding is being performed.

In order to achieve the above object, a control device of an injection molding machine according to an embodiment of the present disclosure includes: a receiving unit that receives setting information representing a setting for performing injection molding; an acquisition unit that acquires measurement information measured while the injection molding is performed using the setting information; and a storage unit that stores a trained model for outputting modification setting information obtained by modifying the setting represented in the setting information by inputting the measurement information acquired by the acquisition unit.

According to the embodiment described above, an object thereof is to provide a technique for reducing a labor of adjustment for injection molding.

character list

• 1 12 is a view showing a state where mold opening is completed in an injection molding machine according to an embodiment.
• 2 14 is a view showing a state where mold clamping/clamping is performed in the injection molding machine according to the embodiment.
• 3 12 is a diagram showing a configuration of a machine learning system of the injection molding machine according to the embodiment.
• 4 12 is a diagram showing an example of a hardware configuration and a functional configuration of a learning device according to the embodiment.
• 5 12 is a diagram showing a plurality of waveform data acquired by a data acquisition unit according to the embodiment.
• 6 12 is a graph showing a degree of variation in a mold clamping/clamping force modification value output from a trained model according to the embodiment with respect to a mold clamping/clamping force adjustment value with which an appropriate molded product is output.
• 7 12 is a graph showing a degree of variation in a mold clamping/clamping force modification value output from a trained model according to the embodiment with respect to a mold clamping/clamping force adjustment value with which an appropriate molded product is output.
• 8th 14 is a conceptual diagram showing a flow of processing performed between a test injection molding machine and the learning device according to the embodiment.
• 9 12 is a functional block diagram showing components of a control device according to the embodiment.
• 10 14 is a graph showing a change in the mold clamping/clamping force set value due to correction using the trained model of the controller according to the embodiment.
• 11 12 is a diagram showing an example of a display screen displayed by a display control unit according to the embodiment.
• 12 14 is a flowchart showing a method of adjusting the mold clamping/clamping force setting value in the controller according to the embodiment.

DETAILED DESCRIPTION OF THE INVENTION

Embodiments of the present invention will be described below with reference to the drawings. In each drawing, the same or corresponding reference numerals are assigned to the same or corresponding configurations, and description thereof is omitted.

1 12 is a view showing a state where mold opening is completed in an injection molding machine according to an embodiment. 2 14 is a view showing a state where mold clamping/clamping is performed in the injection molding machine according to the embodiment. In the present description, an X-axis direction, a Y-axis direction, and a Z-axis direction are orthogonal to each other. The X-axis direction and the Y-axis direction represent a horizontal direction, and the Z-axis direction represents a vertical direction. In a case where a mold clamping/clamping unit 100 is of a horizontal type, the X-axis direction represents one A negative side in the Y-axis direction is referred to as an operating side, and a positive side in the Y-axis direction is referred to as an opposite operating side.

As in 1 and 2 As shown, the injection molding machine 10 includes the mold closing/clamping unit 100 which opens and closes a mold unit 800, an ejector unit 200 which ejects a molded product molded by the mold unit 800, an injection unit 300 which injects a molding material into the mold unit 800, a moving unit 400 that causes the injection unit 300 to move back and forth with respect to the mold unit 800, a controller 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/clamping unit frame 910 which supports the mold clamping/clamping unit 100 and an injection unit frame 920 which supports the injection unit 300. FIG. The mold clamping/clamping unit frame 910 and the injection unit frame 920 are installed on a floor 2 via a height adjuster 930, respectively. The control device 700 is arranged in an inner space of the injection unit frame 920 . Each component of the injection molding machine 10 will be described below.

(mold closing/clamping unit)

In describing the mold clamping/clamping unit 100, a moving direction of a movable platen 120 during mold closing (e.g., a positive direction of an X-axis) is defined as forward, and a moving direction of the movable platen 120 during mold opening (e.g., a negative direction of the X-axis) axis) is defined as backwards.

The mold closing/clamping unit 100 performs mold closing, pressurizing, mold closing/clamping, depressurizing, and mold opening of the mold unit 800 . The mold unit 800 includes a stationary mold 810 and a movable mold 820.

For example, the mold clamping/clamping unit 100 is of a horizontal type, and the mold opening and closing direction is a horizontal direction. The mold clamping/clamping unit 100 includes a stationary platen 110 to which the stationary mold 810 is attached, the movable platen 120 to which the movable mold 820 is attached, and a moving mechanism 102 which moves the movable platen 120 in the opening and Closing direction of the mold with respect to the stationary platen 110 moves.

The stationary platen 110 is fixed to the mold clamping/clamping unit frame 910 . The stationary mold 810 is fixed to a surface of the stationary platen 110 that faces the movable platen 120 .

The movable platen 120 is arranged to be movable in the mold opening and closing direction with respect to the mold clamping/clamping unit frame 910 . A guide 101 guiding the movable platen 120 is placed on the mold clamping/clamping unit frame 910. FIG. The movable mold 820 is attached to a surface of the movable platen 120 that faces the stationary platen 110 .

The moving mechanism 102 causes the movable platen 120 to move back and forth with respect to the stationary platen 110 so that mold closing, pressurizing, mold closing/clamping, depressurizing and mold opening of the mold unit 800 are performed. The moving mechanism 102 includes a toggle bracket 130 spaced from the stationary platen 110, a column 140 interconnecting the stationary platen 110 and the toggle bracket 130, a toggle mechanism 150 which rotates the movable platen 120 in the opening and closing direction of the mold with respect to the toggle bracket 130, a mold closing/clamping motor 160 which actuates the toggle mechanism 150, a motion conversion mechanism 170 which converts rotary motion into linear motion of the mold closing/clamping motor 160, and a mold space adjustment mechanism 180, which adjusts a distance between the stationary platen 110 and the toggle bracket 130 .

The toggle beam 130 is spaced from the stationary platen 110 and placed on the mold clamping/clamping unit frame 910 so as to be movable in the mold opening and closing direction. The toggle support 130 may be arranged to be movable along a guide laid on the mold clamping/clamping unit frame 910 . The guide of the toggle bracket 130 can be common to the guide 101 of the movable platen 120 .

In the present embodiment, the stationary platen 110 is fixed to the mold clamping/clamping unit frame 910, and the toggle beam 130 is arranged to be movable with respect to the mold clamping/clamping unit frame 910 in the mold opening and closing direction is. However, the toggle bracket 130 may be fixed to the mold clamping/clamping unit frame 910 and the stationary platen 110 may be arranged to be movable in the mold opening and closing direction with respect to the mold clamping/clamping unit frame 910 .

The column 140 connects the stationary platen 110 and the toggle beam 130 to each other at a distance L in the mold opening and closing direction. Multiple (e.g. four) columns 140 may be used. The plurality of pillars 140 are arranged in parallel to each other in the mold opening and closing direction, and stretch in accordance with a mold closing/clamping force. At least one of the columns 140 may be provided with a column strain detector 141 that measures strain of the column 140 . The columnar strain detector 141 transmits a signal indicative of a measurement result thereof to the controller 700. The measurement result of the columnar strain detector 141 is used to measure the mold closing/clamping force.

In the present embodiment, as a mold closing/clamping force detector for measuring the mold closing/clamping force, the columnar strain detector 141 is used. However, the present invention is not limited to this. The mold closing/clamping force detector is not limited to one type of strain gauge. The mold closing/clamping force detector may be of a piezoelectric type, a capacitance type, a hydraulic type, or an electromagnetic type, and an attachment position thereof is not limited to the column 140.

The toggle mechanism 150 is disposed between the movable platen 120 and the toggle bracket 130, and moves the movable platen 120 with respect to the toggle bracket 130 in the mold opening and closing direction. The toggle mechanism 150 has a crosshead 151 which moves in the mold opening and closing direction and a pair of link groups which are flexed and extended by a movement of the crosshead 151 . Each pair of link groups has a first link 152 and a second link 153 connected to be freely flexed and extended by a pin. The first link 152 is oscillatingly attached to the movable platen 120 by a pin. The second link 153 is oscillatingly attached to the toggle bracket 130 by a pin. The second link 153 is attached to the crosshead 151 via a third link 154 . When the crosshead 151 is caused to move back and forth with respect to the toggle bracket 130, the first link 152 and the second link 153 are flexed and stretched, and the movable platen 120 moves forward with respect to the toggle bracket 130. and backwards.

A configuration of the toggle mechanism 150 is not limited to configurations described in 1 and 2 are shown. In 1 and 2 For example, the number of nodes in each link group is five, but may be four. An end portion of the third link 154 may be connected to the node between the first link 152 and the second link 153 .

The mold closing/clamping motor 160 is attached to the toggle bracket 130 and actuates the toggle mechanism 150. The mold closing/clamping motor 160 causes the crosshead 151 to move back and forth relative to the toggle bracket 130 to move backward so that the first link 152 and the second link 153 are bent and stretched and the movable plate 120 moves back and forth with respect to the toggle bracket 130 . The mold closing/clamping motor 160 is directly connected to the motion converting mechanism 170, but may also be connected to the motion converting mechanism 170 via a belt or pulley.

The motion conversion mechanism 170 converts rotary motion of the mold closing/clamping motor 160 into linear motion of the crosshead 151 . The motion conversion mechanism 170 includes a spindle shaft and a spindle nut threaded onto the spindle shaft. A ball or a roller can be inserted between the spindle shaft and the spindle nut.

The mold closing/clamping unit 100 performs a mold closing process, a pressurizing process, a mold closing/clamping process, a depressurization process, and a mold opening process under the control of the controller 700 .

In the mold clamping process, the mold clamping/clamping motor 160 is driven to cause the crosshead 151 to advance at a set moving speed to a mold clamping completion position, thereby causing the movable platen 120 to advance so that the movable Form 820 touches the stationary form 810. For example, a position or a moving speed of the crosshead 151 is measured by using a mold clamping/clamping motor encoder 161 . The mold closing/clamping motor encoder 161 measures rotation of the mold closing/clamping motor 160 and transmits a signal indicative of a measurement result thereof to the controller 700.

A crosshead position detector for measuring a position of the crosshead 151 and a crosshead moving speed detector for measuring a moving speed of the crosshead 151 are not limited to the mold clamping/clamping motor encoder 161, and a general detector can be used. In addition, a movable platen position detector for measuring a position of the movable platen 120 and a movable platen moving speed detector for measuring a moving speed of the movable platen 120 are not limited to the mold clamping/clamping motor encoder 161, and a general detector can be used .

In the pressurizing process, the mold clamping/clamping motor 160 is further driven to cause the crosshead 151 to advance from the mold clamping completion position to a mold clamping/clamping position, thereby generating a mold clamping/clamping force.

In the mold closing/clamping process, the mold closing/clamping motor 160 is driven to maintain the position of the crosshead 151 in the mold closing/clamping position. In the mold closing/clamping process, the mold closing/clamping force generated in the pressurizing process is maintained. In the mold closing/clamping process, a cavity space 801 (see 2 ) is formed between the movable mold 820 and the stationary mold 810, and the injection unit 300 fills the cavity space 801 with a liquid molding material. A molded product is obtained by solidifying the molding material filled therein.

The number of cavity spaces 801 can be one or more. In the latter case, multiple molded products can be obtained simultaneously. An insert material may be placed in one portion of the cavity space 801, and the other portion of the cavity space 801 may be filled with the molding material. A molded product in which the feedstock and the mold material are integrated with each other can be obtained.

In the depressurization process, the mold closing/clamping motor 160 is driven to cause the crosshead 151 to move backward from the mold closing/clamping position to a mold opening start position, so that the movable platen 120 moves backward to release the mold closing/clamping position. to reduce clamping force. The mold opening start position and the mold closing completion position may be the same position.

In the mold opening process, the mold closing/clamping motor 160 is driven to cause the crosshead 151 to move backward at a set moving speed from the mold opening start position to a mold opening completion position, so that the movable platen 120 moves backward and the movable Mold 820 is separated from stationary mold 810. After that, the ejector unit 200 ejects the molded product from the movable mold 820 .

Setting conditions in the mold clamping process, the pressurizing process, and the mold closing/clamping process are collectively referred to as a set of setting conditions. For example, the speed of movement or positions (including a mold closing outer start position, a moving speed changeover position, the mold clamping completion position and the mold clamping/clamping position) of the crosshead 151 and the mold clamping/clamping force in the mold clamping process and in the pressurizing process are collectively referred to as a set of setting conditions. The mold closing start position, the moving speed switching position, the mold closing completion position and the mold closing/clamping position are arranged in this order from a back side to a front side and represent a start point and an end point of a section where the moving speed is adjusted. The movement speed is set for each section. The number of moving speed switching positions may be one or more. The movement speed switching position may not be set. Either only the mold closing/clamping position or the mold closing/clamping force can be set.

The setting conditions in the depressurization process and in the mold opening process are set in the same way. For example, the moving speed or positions (the mold opening start position, the moving speed switching position, and the mold opening completion position) of the crosshead 151 in the depressurization process and in the mold opening process are collectively referred to as a set of setting conditions. The mold opening start position, the movement speed switching position and the mold opening completion position are arranged in this order from the front to the back and represent the start point and end point of the section in which the movement speed is adjusted. The movement speed is set for each section. The number of moving speed switching positions may be one or more. The movement speed switching position may not be set. The mold opening start position and the mold closing completion position may be the same position. In addition, the mold opening completion position and the mold closing start position may be the same position.

Instead of the moving speed, positions and the like of the crosshead 151, the moving speed, positions and the like of the movable platen 120 may be adjusted. Moreover, instead of the position (for example, the mold closing/clamping position) of the cross head or the position of the movable platen, the mold closing/clamping force may be adjusted.

The toggle mechanism 150 amplifies a driving force of the mold clamping/clamping motor 160 and transmits the driving force to the movable platen 120. A gain increase is referred to as a toggle increase. The toggle magnification is changed according to an angle θ (hereinafter also referred to as a “link angle θ”) formed between the first link 152 and the second link 153 . The link angle θ is obtained from the position of the crosshead 151 . When the link angle θ is 180°, the toggle increase is maximized.

In a case where a mold space of the mold unit 800 is changed due to replacement of the mold unit 800 or a temperature change in the mold unit 800, mold space adjustment is performed so that a predetermined mold clamping/clamping force is obtained during mold clamping/clamping. For example, in mold space adjustment, the distance L between the stationary platen 110 and the toggle beam 130 is adjusted so that the link angle θ of the toggle mechanism 150 becomes a predetermined angle at which the movable mold 820 contacts the stationary mold 810 .

The mold closing/clamping unit 100 includes the mold space adjustment mechanism 180 . The mold space adjustment mechanism 180 performs the mold space adjustment by adjusting the distance L between the stationary platen 110 and the toggle bracket 130 . For example, a time for mold space adjustment is determined from an end point of a mold cycle to a start point of a subsequent mold cycle. The mold space adjustment mechanism 180 includes, for example, a screw shaft 181 formed in a rear end portion of the column 140, a screw nut 182 supported by the toggle bracket 130 so that it is rotatable and cannot move back and forth, and a cavity adjustment motor 183 which rotates the spindle nut 182 screwed onto the spindle shaft 181 .

The screw shaft 181 and the screw nut 182 are provided for each of the columns 140 . A rotational driving force of the mold space adjustment motor 183 can be transmitted to a plurality of the ball screw nuts 182 via a rotational driving force transmission unit 185 . The multiple spindle nuts 182 can be rotated synchronously with each other. The plurality of screw nuts 182 can be rotated individually by changing a transmission channel of the rotational driving force transmission unit 185 .

The rotary driving force transmission unit 185 is configured to include a gear, for example. In this case, a driven gear is formed on an outer periphery of each spindle nut 182, a driving gear is attached to an output shaft of the mold space adjustment motor 183, and a plurality of intermediate gears meshing with the driven gear and the driving gear are rotatable at a central portion of the Toggle beam 130 held. The rotary driving force transmission unit 185 may be configured to include a belt or pulley instead of the gear.

An operation of the mold space adjustment mechanism 180 is controlled by the controller 700 . The controller 700 drives the mold space adjustment motor 183 to rotate the screw nut 182 . As a result, a position of the toggle bracket 130 with respect to the column 140 is adjusted, and the distance L between the stationary platen 110 and the toggle bracket 130 is adjusted. In addition, a plurality of the mold space adjustment mechanisms can be used in combination.

The distance L is measured using a form space matching engine encoder 184 . The mold space adjustment motor encoder 184 measures a rotation amount or a rotation direction of the mold space adjustment motor 183 and transmits a signal indicative of a measurement result thereof to the controller 700. The measurement result of the mold space adjustment motor encoder 184 is used when monitoring or controlling the position or the distance L of the toggle bracket 130 is used. A toggle beam position detector for measuring the position of the toggle beam 130 and a distance detector for measuring the distance L are not limited to the mold space adjustment motor encoder 184, and a general detector can be used.

The mold closing/clamping unit 100 may include a mold temperature controller that adjusts the temperature of the mold unit 800 . The molding unit 800 has a flow path of a temperature control medium inside. The mold temperature controller adjusts the temperature of the mold unit 800 by adjusting a temperature of the temperature control medium supplied to the mold unit 800 flow path.

The mold clamping/clamping unit 100 of the present embodiment is of the horizontal type in which the mold opening and closing direction is the horizontal direction, but may be of the vertical type in which the mold opening and closing direction is an up-down -direction is.

The mold clamping/clamping unit 100 of the present embodiment has the mold clamping/clamping motor 160 as a drive source. However, instead of the mold closing/clamping motor 160, a hydraulic cylinder may be provided. In addition, the mold clamping/clamping unit 100 may include a linear motor for mold opening and closing, and may include an electromagnet for mold clamping.

(ejector unit)

When describing the ejector unit 200, similarly to the description of the mold clamping/clamping unit 100, a moving direction of the movable platen 120 during mold clamping (for example, the positive direction of the X-axis) is defined as forward, and a moving direction of the movable platen 120 during mold opening (for example, the negative direction of the X-axis) is defined as backward.

The ejector unit 200 is attached to the movable platen 120 and moves back and forth together with the movable platen 120 . The ejector unit 200 has an ejector rod 210 that ejects a molded product from the mold unit 800 and a drive mechanism 220 that moves the ejector rod 210 in the moving direction (X-axis direction) of the movable platen 120 .

The ejector rod 210 is arranged so that it can move back and forth in a through hole of the movable platen 120 . A front end portion of the ejector rod 210 comes into contact with an ejector plate 826 of the movable mold 820 . The front end portion of the ejector rod 210 may or may not be connected to the ejector plate 826 .

The driving mechanism 220 includes, for example, an ejector motor and a motion converting mechanism that converts rotary motion of the ejector motor into linear motion of the ejector rod 210 . The motion conversion mechanism includes a spindle shaft and a spindle nut threaded onto the spindle shaft. A ball or a roller can be inserted between the spindle shaft and the spindle nut.

The ejector unit 200 performs an ejection process under the control of the controller 700 . In the ejection process, the ejector bar 210 is caused to engage with a set moving speed from a standby position to an ejection position, so that the ejector plate 826 advances to eject the molded product. Thereafter, the ejector motor is driven to cause the ejector rod 210 to move backward at a set moving speed, so that the ejector plate 826 moves backward to an initial standby position.

For example, a position or a moving speed of the ejector rod 210 is measured by using an ejector motor encoder. The ejector motor encoder measures the rotation of the ejector motor and transmits a signal indicating a measurement result thereof to the controller 700. An ejector rod position detector for measuring the position of the ejector rod 210, and an ejector rod moving speed detector for measuring the moving speed of the ejector rod 210 not limited to the ejector motor encoder, and a general detector can be used.

(injection unit)

When describing the injection unit 300, unlike the description of the mold closing/clamping unit 100 or the description of the ejector unit 200, a moving direction of a screw 330 during filling (for example, the negative direction of the X-axis) is defined as forward, and a moving direction of the screw 330 during plasticizing (e.g., the positive direction of the X-axis) is defined as backward.

The injection unit 300 is installed on a slide base 301, and the slide base 301 is arranged so that it can move back and forth with respect to the injection unit frame 920. FIG. The injection unit 300 is arranged so that it can move back and forth with respect to the mold unit 800 . The injection unit 300 contacts the molding unit 800 and fills the cavity space 801 inside the molding unit 800 with the molding material plasticized inside a cylinder 310 . The injection unit 300 includes, for example, the cylinder 310 that heats the molding material, a nozzle 320 provided in a front end portion of the cylinder 310, the screw 330 arranged to move back and forth and inside the cylinder 310, a plasticizing motor 340 rotating the screw 330, an injection motor 350 causing the screw 330 to move back and forth, and a load detector 360 transmitting a between the injection motor 350 and the screw 330 load measures.

The cylinder 310 heats the molding material fed into the cylinder 310 through a feed port 311 . The molding material contains a resin, for example. The molding material is formed in a pellet shape, for example, and is supplied to the supply port 311 in a solid state. The supply port 311 is formed in a rear portion of the cylinder 310 . A cooler 312 such as a water cooling cylinder is provided on an outer periphery of the rear portion of the cylinder 310 . In front of the radiator 312, on an outer periphery of the cylinder 310, a heating unit 313 such as a band heater and a temperature gauge 314 are provided.

The cylinder 310 is divided into a plurality of zones in an axial direction (for example, the X-axis direction) of the cylinder 310 . The heating unit (an example of a heater) 313 and the temperature measurement device (an example of a detection unit) 314 are provided in each of the multiple zones. The controller 700 controls the heating unit 313 so that a set temperature is set in each of the multiple zones and a measurement temperature of the temperature gauge 314 reaches the set temperature.

The nozzle 320 is provided in a front end portion of the cylinder 310 and is pressed against the molding unit 800 . The heating unit 313 and the temperature gauge 314 are provided on an outer periphery of the nozzle 320 . The control device 700 controls the heating unit 313 so that a measurement temperature of the nozzle 320 reaches the set temperature.

The screw 330 is arranged to rotate inside the cylinder 310 and move back and forth. When the screw 330 is rotated, the molding material is fed along a spiral groove of the screw 330 forward. The molding material is gradually melted by heat of the cylinder 310 while being fed forward. When the liquid molding material is fed forward by the screw 330 and is accumulated in a front portion of the cylinder 310, the screw 330 moves backward. Thereafter, when the screw 330 is caused to advance, the liquid molding material accumulated in front of the screw 330 is injected from the nozzle 320 and fills an inner space of the molding unit 800.

As a reverse flow prevention valve for preventing the mold conveyed backward from the front of the screw 330 from reverse flow materials, when the auger 330 is pushed forward, a backflow prevention ring 331 is fixed to a front portion of the auger 330 to be able to move back and forth.

The backflow prevention ring 331 is pushed backward by a pressure of the molding material in front of the screw 330 when the screw 330 is caused to move forward, and moves backward relative to the screw 330 to a closed position (see 2 ) in which a flow path of the molding material is closed. Accordingly, the mold material accumulated in front of the screw 330 is prevented from flowing backward.

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 fed forward along the spiral groove of the screw 330, and moves forward relative to the screw 330 to an opening position (see 1 ) in which the flow path of the mold material is open. Accordingly, the molding material is fed forward by the screw 330 .

The anti-backflow ring 331 may be either a co-rotating type that rotates together with the worm 330 or a non-co-rotating type that does not rotate together with the worm 330 .

The injection unit 300 may include a driving source that causes the backflow prevention ring 331 to move back and forth with respect to the worm 330 between the opening position and the closing position.

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

The injection motor 350 causes the screw 330 to move back and forth. A motion converting mechanism that converts a rotary motion of the injection motor 350 into a linear motion of the worm 330 or the like is provided between the injection motor 350 and the worm 330 . The motion conversion mechanism includes, for example, a screw shaft and a screw nut screwed onto the screw shaft. A ball or a roller can be provided between the spindle shaft and the spindle nut. A drive source that causes the screw 330 to move back and forth is not limited to the injection motor 350, and may be a hydraulic cylinder, for example.

The load detector 360 measures a load transmitted between the injection motor 350 and the screw 330 . The measured load is converted into a pressure by the controller 700 . The load detector 360 is provided in a load transmission passage between the injection motor 350 and the screw 330 and measures the load acting on the load detector 360 .

The load detector 360 transmits a measured load signal to the controller 700. The load measured by the load detector 360 is converted to the pressure acting between the screw 330 and the molding material and is used to control or monitor the pressure received by the screw 330 from the molding material , a back pressure against the screw 330 or the pressure applied by the screw 330 to the molding material.

A pressure detector for measuring the pressure of the molding material is not limited to the load detector 360, and a general detector can be used. For example, a nozzle pressure sensor or an internal mold pressure sensor can be used. The nozzle pressure sensor is installed in the nozzle 320. The mold internal pressure sensor is installed inside the mold unit 800.

The injection unit 300 performs a plasticizing process, a filling process, and a holding pressure process under the control of the controller 700 . The filling process and the holding pressure process can be referred to collectively as an injection process.

In the plasticizing process, the plasticizing motor 340 is driven to rotate the screw 330 at a set speed so that the molding material is fed along the spiral groove of the screw 330 forward. As a result, the molding material is gradually melted. When the liquid molding material is fed forward by the screw 330 and is accumulated in a front portion of the cylinder 310, the screw 330 moves backward. A rotation speed of the screw 330 is measured by using a plasticizing motor encoder 341, for example. The plasticizing motor encoder 341 measures the rotation of the plasticizing motor 340 and transmits a signal indicative of a measurement result thereof to the controller 700. A screw speed detector for measuring the speed of the screw 330 is not limited to the plasticizing motor encoder 341, and it a general detector can be used.

In the plasticizing process, the injection motor 350 can be driven to apply a set back pressure to the screw 330 exerts to limit a sudden withdrawal of the screw 330. The back pressure applied to the screw 330 is measured using the load detector 360, for example. When the screw 330 reverses to a plasticization completion position and a predetermined amount of the molding material is accumulated in front of the screw 330, the plasticizing process is completed.

The position and the number of revolutions of the screw 330 in the plasticizing process are set collectively as a series of setting conditions. For example, a plasticization start position, a speed changeover position, and a plasticization completion position are set. These positions are arranged in this order from the front to the rear, and represent the start point and end point of the section where the speed is adjusted. The speed is set for each section. The number of speed change positions can be one or more. The speed change position may not be set. In addition, the back pressure is set for each section.

In the filling process, the injection motor 350 is driven to cause the screw 330 to move forward at a set moving speed, and the cavity space 801 inside the mold unit 800 is filled with the liquid molding material accumulated in front of the screw 330. The position or the moving speed of the screw 330 is measured by using an injection motor encoder 351, for example. The injection motor encoder 351 measures the rotation of the injection motor 350 and transmits a signal indicative of a measurement result thereof to the controller 700. When the position of the screw 330 reaches a set position, the filling process is switched to the holding pressure process (so-called V/P -Switch). The position where V/P switching is performed is referred to as a V/P switching position. The set moving speed of the worm 330 can be changed in accordance with the position, a time, or the like of the worm 330 .

The position and the moving speed of the screw 330 in the filling process are set collectively as a series of setting conditions. For example, a filling start position (also referred to as an “injection start position”), the moving speed switch position, and the V/P switch position are set. These positions are arranged in this order from the back to the front, and represent the start point and end point of the section where the moving speed is set. The movement speed is set for each section. The number of moving speed switching positions may be one or more. The movement speed switching position may not be set.

An upper limit of the pressure of the screw 330 is set for each section in which the moving speed of the screw 330 is adjusted. The screw 330 pressure is measured by the load detector 360 . In a case where the pressure of the auger 330 is equal to or lower than a set pressure, the auger 330 advances at a set moving speed. On the other hand, in a case where the pressure of the screw 330 exceeds the set pressure, to protect the mold, the screw 330 is caused to move forward at a lower moving speed than the set moving speed so that the pressure of the screw 330 is equal to or lower than is the set pressure.

After the position of the auger 330 reaches the V/P switching position in the filling process, the auger 330 may be temporarily stopped at the V/P switching position, and thereafter the V/P switching may be performed. Immediately before V/P switching, instead of stopping the auger 330, the auger 330 can be made to move forward at a low speed or made to move backward at a low speed. In addition, a screw position detector for measuring the position of the screw 330 and a screw moving speed detector for measuring the moving speed of the screw 330 are not limited to the injection motor encoder 351, and a general detector can be used.

In the hold pressure process, the injection motor 350 is driven to push the screw 330 forward. A pressure (hereinafter also referred to as a “holding pressure”) of the molding material in the front end portion of the screw 330 is maintained at a set pressure, and the molding material remaining inside the cylinder 310 is pushed toward the molding unit 800 . An insufficient amount of the molding material due to cooling shrinkage inside the molding unit 800 can be replenished. The holding pressure is measured using the load detector 360, for example. A setting value of the holding pressure may be changed depending on an elapsed time from the start of the holding pressure process. Multiple holding pressures and multiple holding times to hold the holding pressures in the holding pressure process can be set respectively, or they can be set collectively as a series of setting conditions.

In the holding pressure process, the molding material in the cavity space 801 inside the molding unit 800 is gradually cooled, and when the holding pressure process is completed, an inlet of the cavity space 801 is closed by the solidified molding material. This condition is referred to as a sprue seal and prevents the backflow of the molding material from the cavity space 801. After the holding pressure process, a cooling process starts. In the cooling process, the molding material inside the cavity space 801 is solidified. In order to shorten a molding cycle time, the plasticizing process can be performed during the cooling process.

The injection unit 300 of the present embodiment is of an in-line screw type, but may be of a pre-plasticizing type. The pre-plasticizing type injection unit supplies the molding material melted within a plasticizing cylinder to an injection cylinder, and the molding material is injected from the injection cylinder into the molding unit. Inside the plasticizing cylinder, the screw is arranged to be rotatable and cannot move back and forth, or the screw is arranged to be rotatable and can move back and forth. On the other hand, a plunger is arranged so that it can move back and forth inside the injection cylinder.

Moreover, the injection unit 300 of the present embodiment is of a horizontal type in which the axial direction of the cylinder 310 is a horizontal direction, but may be of a vertical type in which the axial direction of the cylinder 310 is an up-down direction. The mold clamping/clamping unit combined with the vertical type injection unit 300 may be of the vertical type or the horizontal type. Similarly, the mold clamping/clamping unit combined with the horizontal type injection unit 300 may be of the horizontal type or the vertical type.

(movement unit)

In describing the moving unit 400, similarly to the description of the injecting unit 300, a moving direction of the screw 330 during filling (e.g., the negative direction of the X-axis) is defined as forward, and a moving direction of the screw 330 during plasticizing (e.g., the positive direction of the X-axis) is defined as backwards.

The moving unit 400 causes the injection unit 300 to move back and forth with respect to the mold unit 800 . The moving unit 400 presses the nozzle 320 against the mold unit 800, thereby generating a nozzle touch pressure. The moving unit 400 includes a hydraulic pump 410, a motor 420 serving as a drive source, and a hydraulic cylinder 430 serving as a hydraulic actuator.

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 switches the direction of rotation of the motor 420 so that hydraulic fluid (oil, for example) is sucked from either one of the first port 411 and the second port 412 and discharged from the other port to generate hydraulic pressure. The hydraulic pump 410 can suck the hydraulic fluid from a tank, and can discharge the hydraulic fluid from any one of the first port 411 and the second port 412 .

The motor 420 drives the hydraulic pump 410. The motor 420 drives the hydraulic pump 410 in a rotational direction and with a torque in accordance with a control signal transmitted from the controller 700. Motor 420 may be an electric motor or may be an electric servo motor.

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 unit 300 . The piston 432 divides the inside of the cylinder body 431 into a front chamber 435 serving as a first chamber and a rear chamber 436 serving as a second chamber. The piston rod 433 is fixed to the stationary platen 110 .

The front chamber 435 of the hydraulic cylinder 430 is connected to the first port 411 of the hydraulic pump 410 via a first flow path 401 . The hydraulic fluid discharged from the first port 411 is fed into the front chamber 435 via the first flow path 401, thereby pushing the unit injector 300 forward. The injection unit 300 moves forward and the nozzle 320 is pressed against the stationary mold 810. The front chamber 435 functions as a pressure chamber that generates the nozzle touch pressure of the nozzle 320 using the pressure of the hydraulic fluid supplied from the hydraulic pump 410 .

On the other hand, the rear chamber 436 of the hydraulic cylinder 430 is with the second port 412 of the hydraulic pump 410 via a 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 injector 300 backward. The injection unit 300 moves backward and the nozzle 320 is separated from the stationary mold 810.

In the present embodiment, the moving unit 400 includes the hydraulic cylinder 430, but the present invention is not limited thereto. For example, instead of the hydraulic cylinder 430, an electric motor and a motion conversion mechanism that converts a rotary motion of the electric motor into a linear motion of the injection unit 300 can be used.

(control device)

For example, the control device 700 is configured to include a computer and has a central processing unit (CPU) 701, a storage medium 702 such as a memory, an input interface 703, and an output interface 704, as in FIG 1 and 2 shown. The control device 700 performs various types of control by causing the CPU 701 to execute a program stored in the storage medium 702 . In addition, the control device 700 receives a signal from the outside via the input interface 703 and transmits the signal to the outside via the output interface 704 .

The controller 700 repeatedly performs the plasticizing process, mold closing process, pressurizing process, mold closing/clamping process, filling process, holding pressure process, cooling process, depressurization process, mold opening process, and ejection process, thereby repeatedly manufacturing the molded product. A series of operations for obtaining the molded product, for example, an operation from the start of the plasticizing process to the start of the subsequent plasticizing process is referred to as a "shot" or a "molding cycle". In addition, a time required for one shot is referred to as a “mold cycle time” or a “cycle time”.

For example, a molding cycle includes the plasticizing process, mold closing process, pressurizing process, mold closing/clamping process, filling process, holding pressure process, cooling process, depressurization process, mold opening process, and ejection process in this order. The order described here is the order of the start times of the respective processes. The filling process, the holding pressure process and the cooling process are performed during the mold closing/clamping process. The start of the mold closing/clamping process can coincide with the start of the filling process. The completion of the depressurization process coincides with the start of the mold opening process.

Multiple processes can be run simultaneously to reduce molding cycle time. For example, the plasticizing process can be performed during the cooling process of the previous molding cycle, or it can be performed during the mold closing/clamping process. In this case, the mold clamping process can be performed at an initial stage of the molding cycle. In addition, the filling process can start during the mold closing process. In addition, the ejection process can start during the mold opening process. In a case where an on-off valve for opening and closing the flow path of the nozzle 320 is provided, the mold opening process can start during the plasticizing process. The reason is as follows. Even if the mold opening process starts during the plasticizing process, the molding material does not leak out of the nozzle 320 when the on-off valve closes the flow path of the nozzle 320.

A molding cycle may include a process other than the plasticizing process, mold closing process, pressurizing process, mold closing/clamping process, filling process, dwell pressure process, cooling process, depressurization process, mold opening process, and ejection process.

For example, after the hold pressure process is completed and before the plasticizing process starts, a pre-plasticizing suck-back process can be performed by causing the screw 330 to move backward to a preset plasticizing start position. The pressure of the molding material accumulated in front of the screw 330 before the start of the plasticizing process can be reduced, and sudden retreat of the screw 330 when the plasticizing process starts can be prevented.

In addition, after the plasticizing process is completed and before the filling process starts, a post-plasticizing suck-back process in which the screw 330 is caused to move to a preset filling start position (also called an "injection start position”) to move backwards. The pressure of the molding material accumulated in front of the screw 330 before the filling process starts can be reduced, and leakage of the molding material from the nozzle 320 before the filling process starts can be prevented.

The control device 700 is connected to an operation device 750 that receives an operation input of a user and to a display device 760 that displays a screen. For example, the operation device 750 and the display device 760 may be integrated with each other in a form of a touch panel 770 . The touch panel 770 serving as the display device 760 displays the screen under the control of the controller 700 . For example, settings of the injection molding machine 10 and information about a current status of the injection molding machine 10 can be displayed on the screen of the touch panel 770 . In addition, the screen of the touch panel 770 can display, for example, a button for receiving the user's input operation or an operation section such as an input field. The touch panel 770 serving as the operating device 750 detects an operation input from the user on the screen and outputs a signal corresponding to the operation input to the control device 700 . In this way, while confirming information displayed on the screen, for example, the user can perform settings (including inputting a setting value) of the injection molding machine 10 by operating the operation section provided on the screen. In addition, the user can operate the injection molding machine 10 corresponding to the operation section by operating the operation section provided on the screen. For example, the operation of the injection molding machine 10 may be operation (including stopping) of the mold closing/clamping unit 100, the ejector unit 200, the injection unit 300, the moving unit 400, or the like. In addition, the injection molding machine 10 can be operated by switching between the screens displayed on the touch panel 770 serving as the display device 760 .

A case where the operation device 750 and the display device 760 of the present embodiment are integrated with each other as the touch panel 770 has been described. However, these two may be provided independently. In addition, a plurality of the operating devices 750 can be provided. The operating device 750 and the display device 760 are arranged on the operating side (a negative direction of the Y-axis) of the mold clamping/clamping unit 100 (further specifically, the stationary platen 110).

[Machine Learning System Concept]

3 14 is a diagram showing a configuration of a machine learning system SYS of the injection molding machine according to the present embodiment. As in 3 As shown, the machine learning system SYS includes a learning device 1300, a test injection molding machine 1350, and the injection molding machine 10.

The test injection molding machine 1350 is an injection molding machine permanently installed in a manufacturing facility to perform machine learning. A configuration of the test injection molding machine 1350 is the same as that of the injection molding machine 10, and description thereof is omitted.

The test injection molding machine 1350 according to the present embodiment manufactures a molded product according to a setting made by an operator in the factory. The test injection molding machine 1350 outputs setting information, which is set when the injection molding of the molded product is performed, and measurement information, which is measured while the injection molding is performed using the setting information, to the learning device 1300 . The setting information and the measurement information are information used to perform machine learning.

For example, the learning device 1300 may be an on-site server installed in the factory or the like, or it may be a cloud server. Alternatively, the learning device 1300 may be a stationary terminal arranged in the factory or the like, or a portable terminal (portable terminal). Examples of the stationary terminal may include a desktop personal computer (PC). Examples of the portable terminal may include a smart phone, a tablet terminal, and a laptop PC.

The learning device 1300 generates training data based on the setting information and the measurement information input from the test injection molding machine 1350 and performs machine learning using the training data to generate a trained model TM.

The setting information is information representing setting for performing the injection molding, and is the information from which optimal setting is obtained by repeating Performing the injection molding is derived. In the present embodiment, a case where the setting information is a mold clamping/clamping force setting value will be described. However, in the present embodiment, the setting information is not limited to the mold clamping/clamping force setting value.

As the setting information, information that is a setting for performing injection molding and that needs to be adjusted according to a condition for performing injection molding or an environment is particularly preferable. As the setting information, for example, a VP switching position, a holding pressure setting, an inflation speed setting, an inflation pressure, and a back pressure setting can be used. As the setting information related to plasticization, a plasticizing rotation speed, a plasticizing delay, and a plasticizing completion position can be used. As the setting information related to mold clamping/clamping, pressurizing time, mold opening and closing speeds, and mold opening position can be used in addition to the mold clamping/clamping force setting value. As the setting information related to the ejector unit 200, an ejector ejecting position, an ejector ejecting pressure, an ejector speed, and an ejector compression time can be used. As the setting information related to a temperature in the injection molding machine 10, a barrel temperature setting, a nozzle temperature setting, a water cooling temperature, and a mold temperature can be used.

The measurement information is information measured while performing injection molding with parameters set based on the setting information. In the present embodiment, as an example, waveform data representing an actual value that changes while the injection molding is being performed is used as the measurement information. In a case where the setting information is the mold clamping/clamping force setting value, the actual value of the waveform data is the mold clamping/clamping force measured as a measurement result of the columnar strain detector 141 (an example of the detection unit).

The trained model TM is a trained model trained by machine learning by reading the mold clamping/clamping force set value and the waveform data representing the change of the mold clamping/clamping force. The trained model TM, in a case where the waveform data is input, outputs information obtained by modifying the mold clamping/clamping force setting value (hereinafter also referred to as a mold clamping/clamping force modification value). A specific generation method and usage mode of the trained model TM will be described later.

The learning device 1300 can output the created trained model TM to the test injection molding machine 1350 . The test injection molding machine 1350 repeatedly performs injection molding with the modified mold clamping/clamping force setting value using the trained model TM and can thus measure the degree of reliability of modification setting information output from the trained model TM.

Then, the learning device 1300 registers the created trained model TM and a reliability coefficient based on the measured reliability degree in the storage medium 702 of the control device 700 of the injection molding machine 10. The reliability coefficient will be described later.

The injection molding machine 10 is shipped from the factory in a state where the trained model TM or the like is registered. Accordingly, in a case where the injection molding machine 10 is used at a shipping site, the mold clamping/clamping force setting value (an example of setting information) can be adjusted without performing machine learning. Thereby, a workload for the worker can be reduced.

[Example of hardware configuration and functional configuration of learning device]

Next, an example of a functional configuration for creating the trained model TM via the learning device 1300 will be explained with reference to FIG 4 described.

4 13 is a diagram illustrating an example of a hardware configuration and a functional configuration of the learning device 1300 according to the present embodiment.

Functions of the learning device 1300 are implemented by any hardware or combination of any hardware and software. As in 4 As shown, the learning device 1300 includes, for example, an input device 1301, an auxiliary storage device 1302, a storage device 1303, a display device 1304, a communication interface 1305, an external interface 1306, and a CPU 1307 connected via a bus 1308.

The input device 1301 receives various inputs from the user. The input device 1301 includes, for example, an operation input device that receives a mechanical operation input from the user. In addition, the operation input device includes, for example, a touch panel mounted on the display device 1304, a touch pad provided separately from the display device 1304, and the like.

The auxiliary storage device 1302 stores various installed programs and also stores files and data required for various types of processing. The auxiliary storage device 1302 includes, for example, a hard disk drive (HDD), a solid state drive (SSD), a flash memory, or the like.

In a case where a program start instruction is given, the storage device 1303 reads the program from the auxiliary storage device 1302 and stores the program. The storage device 1303 includes, for example, dynamic random access memory (DRAM) or static random access memory (SRAM).

The display device 1304 displays an information screen or an operation screen to the user. For example, display device 1304 includes a remote control display device. The display device 1304 is, for example, a liquid crystal display or an organic electroluminescent (EL) display.

The communication interface 1305 is used as an interface for communication with an external device. Accordingly, the learning device 1300 can communicate with an external device such as the injection molding machine 10 via the communication interface 1305 . Furthermore, the communication interface 1305 may have multiple types of communication interfaces depending on a communication method between connected devices and the like.

The external interface 1306 functions as an interface for reading data from a recording medium (not shown) or writing data on the recording medium. Examples of the recording medium include a floppy disc, a compact disc (CD), a digital versatile disc (DVD), a BD Blu-ray disc (BD) (registered trademark), an SD memory card, and a USB memory.

Accordingly, the learning device 1300 can read various data used in processing via the recording medium and store the data in the auxiliary storage device 1302, or install a program that realizes various functions.

The CPU 1307 executes various programs loaded into the storage device 1303 from the auxiliary storage device 1302, and realizes various functions related to the learning device 1300 according to the programs.

The CPU 1307 of the learning device 1300 executes the program stored in the auxiliary storage device 1302 . Accordingly, the CPU 1307 contains a data acquisition unit 1311, a setting unit 1312, a learning unit 1313, a test output unit 1314, a test result acquisition unit 1315, a coefficient calculation unit 1316 and an output unit 1317 as functional units.

The data acquisition unit 1311 acquires from the test injection molding machine 1350 a plurality of combinations of mold clamping/clamping force setting values (an example of the setting information) used for machine learning and waveform data (an example of the measurement information) showing a change in mold clamping/clamping force represent. The number of mold clamping/clamping force setting values and waveform data to be acquired is not particularly limited and may be any number as long as the trained model TM can be generated.

The adjustment unit 1312 generates training data from the combinations of the mold clamping/clamping force adjustment values and the waveform data acquired by the data acquisition unit 1311 . The setting unit 1312 according to the present embodiment displays multiple types of waveform data on the display device 1304 . The operator sets a correct answer condition for the displayed waveform data.

The correct answer condition indicates waveform data measured when an appropriate shape product is generated from the plural kinds of waveform data. The number of types of waveform data for which the correct answer condition is set may be one or more.

5 13 is a diagram showing the plural types of waveform data acquired by the data acquisition unit 1311. FIG. in the in 5 In the example shown, a vertical axis represents an actual value, and a horizontal axis is a time axis. in the in 5 In the example shown, waveform data 1601 to 1606 are shown. He is value is a mold closing/clamping force that was actually measured.

As in 5 1, the waveform data 1601 to 1606 are examples in which the actual value of the mold clamping/clamping force differs depending on the mold clamping/clamping force set value. The waveform data 1601 to 1606 differ in the degree of change of the actual value from time t ₀ . The waveform data measured when an appropriate shape product is generated is the waveform data 1603. A shape of the waveform data when an appropriate shape product is generated tends to be a shape as shown in the waveform data 1603. Therefore, the operator sets the waveform data 1603 determined to have an appropriate degree of change as the correct answer condition, and sets the other waveform data 1601, 1602, and 1604 to 1606 as unfavorable conditions.

Back to 4 , the setting unit 1312 sets data with a label indicating whether the condition for correct answer is satisfied or not, as the training data according to an operator's operation for the combinations of the mold clamping/clamping force setting values and those detected by the data acquisition unit 1311 waveform data.

The learning unit 1313 generates the trained model TM by performing machine learning based on some of the training data output from the setting unit 1312 . That is, the learning unit 1313 reads the mold clamping/clamping force setting value, the waveform data and the flag indicating whether or not the condition for correct answer is satisfied included in each of the training data, performs machine learning, and generates the trained model TM. The created trained model TM receives the waveform data measured by the injection molding machine 10 and can output a mold clamping/clamping force modification value (information in which the mold clamping/clamping force setting value is modified) so that the waveform data satisfying the correct response condition are to be measured.

The trained model TM is created by using supervised learning on a base learning model. Specifically, the learning unit 1313 performs machine learning based on a collection of training data (training data set) obtained by combining the waveform data as an input and a correct response (mold closing/clamping force modification value) as an output, and generates the trained model TM

Furthermore, the trained model TM can be updated by allowing the existing trained model TM to additionally learn a new training data set.

As the machine learning used to generate the trained model TM, for example, machine learning using a deep neural network (DNN; Deep Neural Network) is applied, and deep learning is applied.

The test output unit 1314 outputs the trained model TM generated by the learning unit 1313 to the controller 700 of the test injection molding machine 1350 . Any method can be used to output the trained model TM to the controller 700 of the test injection molding machine 1350 . For example, the trained model TM may be transmitted to the controller 700 of the test injection molding machine 1350 via a predetermined communication line provided in the factory.

The test result acquiring unit 1315 acquires a test result when injection molding is performed using the trained model TM from the test injection molding machine 1350. As the test result, the mold clamping/clamping force modification value output from the trained model TM (information acquired by modifying of the mold clamping/clamping force adjustment value are obtained) and waveform data in a case where injection molding is performed using the mold clamping/clamping force modification value.

In the test injection molding machine 1350, the waveform data measured by performing injection molding with the initial mold closing/clamping force setting value is input to the trained model TM. Accordingly, the trained model TM outputs the mold closing/clamping force modification value. Then, the test injection molding machine 1350 performs injection molding using the mold clamping/clamping force modification value as the mold clamping/clamping force setting value. Then, the test injection molding machine 1350 acquires the waveform data measured while the injection molding is performed using the mold clamping/clamping force modification value. The test injection molding machine 1350 repeats the processing, acquires a combination of the mold clamping/clamping force modification value and the waveform data as a test result, and outputs the test result to the learning device 1300 .

The coefficient calculation unit 1316 calculates a reliability coefficient that indicates the degree of reliability of the trained model TM output to the test injection molding machine 1350 based on the test result input from the test injection molding machine 1350.

The reliability coefficient is a gain based on the degree of reliability of the mold closing/clamping force modification value output from the trained model TM with respect to the mold closing/clamping force setting value (correct answer) with which an appropriate molded product is output. The degree of reliability of the mold closing/clamping force modification value output from the trained model TM is described with reference to FIG 6 and 7 described.

6 and 7 12 are graphs showing the degree of variation of the mold clamping/clamping force modification value output from the trained model TM with respect to the mold clamping/clamping force setting value (correct answer) with which an appropriate molded product is output. 6 and 7 show the degree of variation in mold closure/clamp force modification values reported by different trained models TM.

A vertical axis of 6 and 7 indicates a modification amount (mold clamping/clamping force modification value - mold clamping/clamping force adjustment value) of the mold clamping/clamping force modification value with respect to the mold clamping/clamping force adjustment value. The mold clamping/clamping force modification value is a value output from the trained model TM in a case where waveform data measured during injection molding using the mold clamping/clamping force setting value is input to the trained model TM. A horizontal axis represents a modification amount (mold closing/clamping force modification value for correct response - mold closing/clamping force setting value) of the mold closing/clamping force modification value which is the correct response with respect to the preset mold closing/clamping force setting value. 6 and 7 show a case where a magnitude of the modification amount is in a range from “0%” to “100%” with respect to the mold clamping/clamping force preset value.

In a first trained model TM implemented in 6 , a variation between a modification amount by the first trained model TM and a modification amount of the correct answer is within a range between a lower limit 1703 and an upper limit 1702 with respect to a reference line 1701.

On the other hand, in a second trained model TM lying in 7 shown, a variation between a modification amount by the second trained model TM and a modification amount of the correct answer within a range between a lower limit 1803 and an upper limit 1802 with respect to a reference line 1801.

That is, a variation of a mold clamping/clamping force modification value derived from that in FIG 6 shown first trained model TM is smaller than that of a mold closing/clamping force modification value derived from the in 7 illustrated second trained model TM is output.

Then, the coefficient calculation unit 1316 calculates a reliability coefficient for each trained model TM according to the variation.

The reliability coefficient according to the present embodiment is, for example, an increase with respect to the modification amount of the mold clamping/clamping force modification value output from the trained model TM, and is a numerical value between “0” and “1”. As the degree of reliability of the trained model TM increases, a value of the reliability coefficient increases.

in the in 6 shown example, the coefficient calculation unit 1316 calculates the reliability coefficient based on a difference 1704 between the lower limit 1703 and the upper limit 1702. Similarly, the coefficient calculation unit 1316 in the FIG 7 shown example calculates the reliability coefficient based on a difference 1804 between the lower limit 1803 and the upper limit 1802. The coefficient calculation unit 1316 adjusts the reliability coefficient to a larger value as the difference between the upper limit and the lower limit becomes smaller. Accordingly, the reliability coefficient corresponding to the variation is calculated.

Back to 4 , the output unit 1317 outputs the trained model TM generated by the learning unit 1313 and the reliability coefficient calculated by the coefficient calculation unit 1316 to the controller 700 of the injection molding machine 10 . Any method can be used to output the trained model TM and the reliability coefficient to the controller 700 of the injection molding machine 10, and the trained model TM and the reliability coefficient can be sent to the controller 700 of the injection molding machine 10 via a pre-defined voted communication line, which is provided in the factory, are transmitted. In addition, the output unit 1317 can write the trained model TM and the reliability coefficient on a predetermined recording medium. Accordingly, the trained model TM can be registered in the control device 700 of the injection molding machine 10 via a predetermined storage medium. In this way, the registration of the trained model TM and the reliability coefficient in the controller 700 of the injection molding machine 10 is performed in the factory before the injection molding machine 10 is shipped. The registration of the trained model TM and the reliability coefficient is not limited to before shipment, and may be performed after shipment using a public communication line or the like, for example.

8th 13 is a conceptual diagram showing a flow of processing performed between the test injection molding machine 1350 and the learning device 1300 according to the present embodiment.

As in 8th As illustrated, the test injection molding machine 1350 outputs a combination of first setting information (mold clamping/clamping force setting value) and first waveform data, a combination of second setting information (mold clamping/clamping force setting value) and second waveform data, and a combination of third setting information (mold clamping /clamping force setting value) and third waveform data to the learning device 1300 (S1501). The number of combinations of the setting information and the waveform data output from the test injection molding machine 1350 to the learning device 1300 is not limited to three, and a required number of combinations for creating the trained model TM is input.

The setting unit 1312 sets whether or not the correct answer condition is satisfied for each input combination of the setting information and the waveform data, and generates training data (S1502).

The learning unit 1313 performs machine learning on a model IM based on a plurality of training data output from the setting unit 1312, and creates a trained model TM (S1503).

The test output unit 1314 outputs the trained model TM along with a test request to the test injection molding machine 1350 (S1504). Accordingly, the test injection molding machine 1350 performs an injection molding test using the trained model TM.

Then, the test injection molding machine 1350 outputs a mold test result using the trained model TM to the learning device 1300 (S1505).

Then, the coefficient calculation unit 1316 of the learning device 1300 calculates a reliability coefficient of the trained model TM from the test result (S1506). Since a method of calculating the reliability coefficient is as described above, description thereof is omitted.

Then, the output unit 1317 outputs the trained model TM and the reliability coefficient to the injection molding machine 10 .

The learning device 1300 and the test injection molding machine 1350 perform the processing described above, with the trained model TM and the reliability coefficient being registered in the control device 700 of the injection molding machine 10 .

[Functional configuration of the control device of the injection molding machine]

9 FIG. 7 is a functional block diagram showing components of the control device 700 according to the present embodiment. everyone in 9 The function block shown is conceptual and may not necessarily be physically configured as shown. All or a portion of each functional block can be configured to be functionally or physically distributed and integrated into any unit. Each processing function performed in each function block is realized by a program in which all or any desired sub-functions are performed by the CPU 701. Alternatively, each function block can also be implemented as hardware using wired logic. As in 9 As shown, the control device 700 includes an input reception unit 711, a condition calculation unit 712, an operation control unit 713, a detection unit 714, an information generation unit 715, a correction unit 716, and a display control unit 717.

In addition, the storage medium 702 of the control device 700 stores the trained model TM and a reliability coefficient 722. The trained model TM and the reliability coefficient 722 are information registered in the learning device 1300 before the injection molding machine 10 is shipped. As described above, the trained model TM has already been trained at a stage of shipping the injection molding machine 10 .

The input receiving unit 711 receives an input operation of the user from the operating device 750 via the input interface 703.

The input receiving unit 711 receives setting information related to a condition for the injection molding machine 10 to perform injection molding as the input operation. In the case of the present embodiment, the received setting information is the mold clamping/clamping force setting value.

The condition calculation unit 712 calculates parameters for performing injection molding according to the received setting information. For example, in a case where the mold clamping/clamping force setting value is input, the condition calculation unit 712 calculates the position of the crosshead 151 so that the mold clamping/clamping force indicated by the mold clamping/clamping force setting value is output.

The operation control unit 713 controls the operation of the injection molding machine 10 according to the parameters calculated by the condition calculation unit 712 . For example, the operation control unit 713 performs the plasticizing process, mold closing process, pressurizing process, mold closing/clamping process, filling process, holding pressure process, cooling process, depressurization process, mold opening process, ejection process, and the like using the parameters calculated by the condition calculation unit 712. thereby producing a molded product.

The acquisition unit 714 acquires waveform data (an example of the measurement information) representing an actual value of the mold clamping/clamping force measured while the molded product is being manufactured by the operation control unit 713 .

The information generation unit 715 receives the waveform data acquired by the acquisition unit 714 and generates a mold clamping/clamping force modification value (an example of the modification setting information) using the trained model TM. The output mold clamping/clamping force modification value is a mold clamping/clamping force setting value modified to output waveform data in which the correct response condition is set.

The correction unit 716 corrects the mold clamping/clamping force modification value generated by the information generation unit 715 by using the reliability coefficient 722 corresponding to the trained model TM.

The correction unit 716 according to the present embodiment multiplies the modification amount contained in the mold clamping/clamping force modification value (mold clamping/clamping force modification value - mold clamping/clamping force adjustment value) by the reliability coefficient 722 and then adds the mold clamping/clamping force adjustment value to the modification amount obtained by multiplying the reliability coefficient 722 . According to the calculation, the mold closing/clamping force modification value is adjusted according to the reliability of the trained model TM. In other words, the correcting unit 716 may generate the corrected mold closing/clamping force modification value based on the reliability coefficient 722 .

Moreover, in the present embodiment, a method of multiplying the modification amount by the reliability coefficient 722 has been described as a correction method of the mold clamping/clamping force modification value using the reliability coefficient 722. However, any method can be used as long as the method is to correct the modification setting information using the reliability coefficient 722 .

Thereafter, the condition calculation unit 712 calculates the position (parameter) of the cross head 151 using the mold clamping/clamping force modification value corrected based on the reliability coefficient 722 as the mold clamping/clamping force setting value so that one indicated in the mold clamping/clamping force setting value mold closing/clamping force is output.

The operation control unit 713 controls the operation of the injection molding machine 10 according to the parameters calculated by the condition calculation unit 712 . Subsequent processing is a repeat of the processing described above.

That is, the controller 700 according to the present embodiment repeats the processing of 1) calculating the parameter based on the mold clamping/clamping force modification value, 2) controlling the operation according to the parameter, 3) acquiring the waveform data measured by the operation 4) inputting the waveform data into the trained model TM, to output the mold closing/clamping force modification value, and 5) correcting the mold closing/clamping force modification value via the reliability coefficient 722. By this repetition, the mold closing/clamping force modification value after correction by the correction unit 716 becomes a mold closing/clamping force -Adjusted the setting value to output a proper shape product.

The display control unit 717 controls the display device 760 to display a display screen. In the present embodiment, an example of outputting the display screen or the like to the display device 760 has been described, but the destination to which the display screen is output is not limited to the display device 760. For example, the display control unit 717 can output data such as the display screen to an information processing device connected via a network.

The display control unit 717 displays on the display device 760 a display screen containing a field in which a mold closing/clamping force setting value required for initial molding can be entered. In addition, the display screen displayed by the display control unit 717 may display at least one of the waveform data and the mold clamping/clamping force modification value. A specific display screen will be described later.

[Example of change in mold clamping/clamping force setting value]

10 12 is a diagram showing a change in the mold clamping/clamping force setting value (setting information) due to the correction using the trained model TM applied to the control device 700 according to the present embodiment.

in the in 10 In the illustrated example, in a first shot (S1), the mold clamping/clamping force setting value inputted from the input receiving unit 711 is set. Then, the controller 700 calculates a mold closing/clamping force modification value (an example of the modification setting information) based on waveform data measured while a molded product according to the mold closing/clamping force setting value set at the first shot (S1). , being formed. Then, the controller 700 sets the calculated mold clamping/clamping force modification value as the mold clamping/clamping force setting value for a second shot (S2).

By repeating the processing, the mold clamping/clamping force adjustment value converges to a predetermined value 2003. The predetermined value 2003 is a mold clamping/clamping force adjustment value (mold clamping/clamping force adjustment value for correct response) with which an appropriate molded product is discharged.

For example, the correction unit 716 determines whether the difference between a mold clamping/clamping force modification value (used as a mold clamping/clamping force adjustment value for an (n+2)th shot) recorded in a (n+1) th shot (Sn+1) and a mold clamping/clamping force modification value (used as a mold clamping/clamping force adjustment value for a (n+1)th shot) generated in an n-th shot (Sn) is generated is smaller than a preset stable detection range or not. In a case where it is determined that the difference is larger than the stable detection range, the processing described above is repeated. On the other hand, in a case where it is determined that the difference is equal to or smaller than the stable detection range, the generated mold clamping/clamping force modification value is used as a mold clamping/clamping force adjustment value (mold clamping/clamping force adjustment value for correct response). is considered, with which an appropriate molded product is discharged, and the processing described above is terminated. The stable detection range is a range predetermined as a condition for stopping generation of the mold clamping/clamping force modification value.

in the in 10 In the example shown, the correction unit 716 determines that the difference between a mold closing/clamping force modification value generated in a sixth shot (S6) and a mold closing/clamping force modification value for a fifth shot (S5) is smaller than the preset stable detection range. Therefore, an under-adjustment period 2001 is ended, and the processing proceeds to a correction completion period 2002.

After the sixth shot (S6), the operation of the injection molding machine 10 is controlled by using the mold clamping/clamping force modification value generated in the sixth shot (S6) as the mold clamping/clamping force adjustment value. Thereafter, a molded product can be manufactured using an appropriate mold closing/clamping force adjustment value. Accordingly, quality improvement of the molded product can be realized.

[Example of display screen]

11 12 is a diagram showing an example of the display screen displayed by the display control unit 717 according to the present embodiment. As in 11 As shown, on a display screen 2100 are an automatic condition setting field 2101, an initial setting value field 2102, a modification value field 2103, a current measured value field 2104, a waveform data field 2105, a setting value change display field 2107, a stable detection range setting field 2110, a stable detection shot number setting panel 2111, an adjustment completion display panel 2112, a model version update panel 2113, a reference button 2114, and an execute button 2115 are shown.

The automatic condition setting field 2101 is a field for setting whether or not to perform automatic correction of the mold clamping/clamping force setting value. In a case where “ON” is set, the mold clamping/clamping force set value is corrected using the trained model TM. In a case where "OFF" is set, the mold clamping/clamping force set value is not corrected.

The initial setting value field 2102 is an input field for a mold closing/clamping force setting value used for initial molding.

In the waveform data field 2105, waveform data 2106 is displayed for each shot measured during injection molding with the currently set mold closing/clamping force setting value. A vertical axis represents an actual value of mold clamping/clamping force, and a horizontal axis represents time.

The modification value field 2103 is a field in which the mold clamping/clamping force modification value corrected by the correcting unit 716 is displayed. For example, the mold closing/clamping force modification value generated by the calculation described above using the waveform data shown in the waveform data field 2105 is displayed.

The actual measured value field 2104 is a field in which the actual value measured while the injection molding is performed with the currently set mold clamping/clamping force adjustment value (mold clamping/clamping force modification value) is displayed. The actual value displayed in the actual measurement field 2104 may be an average value of the waveform data 2106 or a peak value of the waveform data 2106 . That is, the condition calculation unit 712 described above adjusts the parameter of the injection molding machine 10 based on the mold clamping/clamping force modification value indicated in the modification value field 2103, the mold clamping/clamping force modification value indicated in the modification value field 2103 being the same as that in the actual Measured value field 2104 displayed actual value approaches.

The stable detection area setting field 2110 and the stable detection shot number setting field 2111 indicate conditions for ending the modification of the mold clamping/clamping force setting value.

The stable detection area setting field 2110 is a stable detection area setting field for comparing the difference between the mold clamping/clamping force modification value generated in the (n+1)th shot (Sn+1) and the mold clamping/clamping force setting value in the nth shot (Sn). Since a method of using the stable detection area is as described above, description thereof is omitted.

The stable detection shot number setting field 2111 is a field for setting the number of stable detection shots for adjusting the mold clamping/clamping force modification value. In a case where the number of shots performed to modify the mold clamping/clamping force modification value becomes equal to the number of stable detection shots, the modification of the mold clamping/clamping force modification value is terminated.

The adjustment completion panel 2112 displays the number of shots remaining until the number of stable detection shots is reached and the modification is complete. An example in which the number of shots is set as a condition until modification is completed on the display screen 2100 will be described. However, the condition until the modification is completed is not limited to the number of shots, and the time (e.g., minutes) or the degree of achievement (%) until the completion may be displayed.

The set value change display field 2107 shows the mold clamping/clamping force set value which changes with the lapse of time. in the in 11 In the setting value change display field 2107 shown, all mold closing/clamping force setting values generated from an initial mold closing/clamping force setting value 2108 to an appropriate mold closing/clamping force setting value 2109 are plotted for convenience of description. In practice, however, only previously generated mold closing/clamping force settings are plotted.

The model version update field 2113, the reference button 2114 and the execute button 2115 are fields used to update the trained model TM.

For example, when the input receiving unit 711 receives pressing of the reference button 2114, the display control unit 717 displays a trained model TM selection screen.

Then the trained model TM selected on the selection screen is shown in the model version update panel 2113 .

In a state where the trained model TM is shown in the model version update panel 2113, the input receiving unit 711 receives pressing of the execute button 2115 to register the trained model TM in the storage medium 702 for use. The trained model TM registered at this point is used for subsequent processing.

[Reliability Coefficients Update]

The present embodiment does not limit the update target to the trained model TM. For example, the reliability coefficient can be updated.

For example, in a case where it takes time until an appropriate mold clamping/clamping force setting value is derived when the mold clamping/clamping force setting value is corrected using the trained model TM after the injection molding machine 10 is shipped, there are cases , in which the time until an appropriate mold closing/clamping force setting value is derived is shortened by changing only the reliability coefficient without changing the trained model TM.

Therefore, according to the present embodiment, the control device 700 can update the reliability coefficient as needed. Any method can be used as a method for updating the reliability coefficient. For example, an input field for entering the reliability coefficient can be provided on the display screen, as in FIG 11 shown. Then, in a case where the input receiving unit 711 receives the reliability coefficient inputted in the reliability coefficient input field, the control device 700 updates the reliability coefficient stored in the storage medium 702 . Alternatively, in a case where the reliability coefficient to be updated is received from the learning device 1300, the control device 700 may update the reliability coefficient.

As described above, after the injection molding machine 10 is shipped, by changing the reliability coefficient without changing the trained model TM, it is possible to improve stability and adjust the time required until the mold closing/clamping force set value is corrected.

The present embodiment is not limited to the method of updating only the reliability coefficient without updating the trained model TM, and the reliability coefficient may be updated at the same time when the trained model TM is updated.

[Method of Modifying Setting Information]

12 14 is a flowchart showing a process for adjusting the mold clamping/clamping force setting value (setting information) in the controller 700 according to the present embodiment. In the present embodiment, the display control unit 717 continuously displays the display screen as shown in FIG 11 shown.

First, the input receiving unit 711 receives the input of the mold clamping/clamping force setting value used for the initial (injection molding) molding in the initial setting value field 2102 of the display screen 2100 (S2201).

Next, the condition calculation unit 712 calculates the parameter for performing the (injection molding) molding according to the received mold clamping/clamping force setting value (S2202).

The operation control unit 713 controls the operation of the injection molding machine 10 according to the calculated parameter to produce the molded product (S2203).

The acquisition unit 714 acquires the waveform data (an example of the measurement information) representing the actual value of the mold closing/clamping force measured while the molded product is being manufactured by the operation control unit 713 (S2204). The captured waveform data is displayed in waveform data field 2105 of display screen 2100 . In addition, in the actual measurement value field 2104 of the display image screen 2100 displays the current value based on the waveform data.

The information generation unit 715 generates the mold clamping/clamping force modification value by inputting the waveform data into the trained model TM (S2205).

The correction unit 716 corrects the mold clamping/clamping force modification value based on the reliability coefficient 722 (S2206). The corrected mold closing/clamping force modifier value is displayed in modifier value field 2103 of display screen 2100 . In the setting value change display area 2107, the corrected mold clamping/clamping force modification value is plotted as a new mold clamping/clamping force setting value.

Then, the correction unit 716 determines whether or not the difference between the previous mold clamping/clamping force modification value and the current mold clamping/clamping force modification value is larger than the stable detection range (S2207). In a case where it is determined that the difference is smaller than the stable detection range (No in S2207), the processing is ended.

On the other hand, in a case where the correcting unit 716 determines that the difference is larger than the stable detection range (Yes in S2207), the correcting unit 716 determines whether the number of shots for deriving the current mold clamping/clamping force modification value is equal to or is greater than the number of stable detection shots (S2208). In a case where it is determined that the current shot number is equal to or larger than the number of stable detection shots (Yes in S2208), the processing is ended.

In a case where the correction unit 716 determines that the current shot number is smaller than the number of stable detection shots (No in S2208), the condition calculation unit 712 sets the mold clamping/clamping force modification value corrected in S2206 as the mold clamping/clamping force set value and calculates a parameter for performing injection molding according to the mold clamping/clamping force set value (S2202).

The control device 700 according to the present embodiment can easily adjust the mold clamping/clamping force setting value to produce an appropriate molded product by processing according to the processing method described above.

In the embodiment described above, an example in which waveform data is used as measurement information has been described. However, the measurement information is not limited to the waveform data, and any information can be used as long as the information is measured while injection molding of a molded product is being performed. For example, the measurement information may be detection information detected by a sensor (an example of the detection unit) provided in the injection molding machine 10 while injection molding of a molded product is being performed. Alternatively, the measurement information may be a voltage signal used to control the injection molding machine 10 while injection molding of a molded product is being performed. Otherwise, the measurement information may be communication data received from an external device that the injection molding machine 10 measures while injection molding of a molded product is being performed.

In the present embodiment, the measurement information is not limited to a single piece of information, but may be a combination of plural pieces of information. For example, at least two or more waveform data, detection information detected by a sensor (an example of the detection unit), a voltage signal, and communication data may be combined.

Furthermore, in the present embodiment, a case where setting information (mold clamping/clamping force setting value) is used has been described. However, the present embodiment is not limited to the case where the number of pieces of setting information is one (clamping/clamping force setting value), and machine learning can be performed on a combination of plural pieces of setting information.

[Operation]

In the prior art, conditions for performing injection molding have been adjusted by inspecting a molded product. However, in the present embodiment, machine learning is performed on the correspondence between the measurement information (for example, the waveform data) and the setting information (for example, the mold clamping/clamping force setting value). Accordingly, the controller 700 according to the present embodiment can adjust the mold clamping/clamping force setting value from the waveform data by using the trained model TM. Therefore, since it is not necessary to adjust the setting information by those skilled in the art, it is possible to reduce an effort of adjusting the setting required for manufacturing the molded product.

In addition, since the setting information can be easily adjusted by using the trained model TM, it is possible to reduce the labor for adjustment and the frequency of maintenance.

Furthermore, since the trained model TM trained through machine learning by the learning device 1300 is registered in the injection molding machine 10, it is possible to reduce the burden of performing machine learning at the shipping site.

Since the control device 700 according to the present embodiment corrects the setting information with the reliability coefficient that corresponds to the degree of reliability of the trained model TM, it is possible to suppress excessive modifications of the setting information by the trained model TM. In addition, by using the reliability coefficient, it is possible to adjust responsiveness and stability related to the correction of the setting information.

In addition, since the control device 700 according to the present embodiment ends the modification of the setting information in a case where the modification amount of the setting information is within a predetermined range compared to that in the previous modification, it is possible to strike a balance between the accuracy of the setting information and of the time up to the derivation of the adjustment information.

Since the control device 700 according to the present embodiment ends the modification of the setting information in a case where the number of times of modifying the setting information reaches a predetermined number of times, it is possible to suppress a time lag until the setting information is derived.

Although the embodiments have been described in detail above, the present disclosure is not limited to the specific embodiments, and various modifications and changes can be made within the scope of the concept described in claims.

Reference List

10

injection molding machine

700

control device

702

storage medium

711

input receiving unit

712

condition calculation unit

713

operational control unit

714

registration unit

715

information generation unit

716

correction unit

717

display controller

722

reliability coefficient

TM

trained model

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• JP202049929 [0004]

Claims (6)

Control device (700) of an injection molding machine (10), comprising: an input receiving unit (711) that receives setting information representing a setting for performing injection molding; an acquisition unit (714) that acquires measurement information measured while the injection molding is performed using the setting information; and a storage medium (702) storing a trained model (TM) for outputting modification setting information obtained by modifying the setting represented in the setting information by inputting the measurement information acquired by the acquiring unit (714). Control device (700) of an injection molding machine (10). claim 1 , wherein the trained model (TM) stored in the storage medium (702) is in a state that was already trained in a phase of shipping the injection molding machine (10). Control device (700) of an injection molding machine (10). claim 1 or 2 , further comprising: a correction unit (716) that corrects the modification setting information output from the trained model (TM) by using a reliability coefficient (722) preset based on a degree of reliability of the trained model (TM). Control device (700) of an injection molding machine (10). claim 3 wherein the storage medium (702) stores the reliability coefficient (722) at a stage of shipping the injection molding machine (10), and a control unit that changes the reliability coefficient stored in the storage medium is further included. Control device (700) of an injection molding machine (10) according to one of Claims 1 until 4 wherein the measurement information while molding is performed is any one or more of a detection result detected by a detection unit, a voltage signal for controlling molding, and communication data received from an external device. Display device (760) of an injection molding machine (10), comprising: a display control unit (717) that displays a display screen including a field in which setting information representing a setting for performing injection molding is input; an acquisition unit (714) that acquires measurement information measured while forming is performed using the setting information entered in the field; and a storage medium (702) storing a trained model (TM) for outputting modification setting information obtained by modifying the setting represented in the setting information by inputting the measurement information acquired by the acquiring unit (714), wherein the display screen displayed by the display control unit (717) shows at least one of the measurement information and the modification setting information.

Images