Production management device, display device and production device

Abstract

The invention provides a production management device, a display device and a production device, which can grasp conditions related to production of products. A production management device according to one embodiment of the present invention is provided with a control unit which is configured so as to perform a process in which one or more power generation facilities from among power generation facilities owned by an electric power company and power generation facilities installed for self-power generation have signed a contract for supplying power to a production device, acquiring information indicating the amount of emission of carbon dioxide corresponding to the amount of power supplied from each of the power generation facilities; acquiring information indicating the proportion of the amount of power supplied from each of the power generation facilities for producing the product by the production device; and calculating the emission amount of carbon dioxide generated by the production of the product on the basis of the amount of power used for the production of the product, the ratio of the amount of power supplied from each of the power generation facilities, and the emission amount of carbon dioxide corresponding to the amount of power generated from each of the power generation facilities.

Description

[0001] This application claims priority based on Japanese Patent Application No. 2023-102692 filed on June 22, 2023. The entire contents of the Japanese Patent Application are incorporated herein by reference. Technical Field

[0002] The invention relates to a production management device and a display device. Background Art

[0003] Conventionally, when manufacturing products in a production device, it is required to consider production costs, etc. For example, a technology has been proposed that provides an operation mode for changing the power supply source for driving each device of an injection molding machine in order to suppress power demand (for example, Patent Document 1).

[0004] Patent Document 1: Japanese Patent Application Publication No. 2004-50814

[0005] However, in recent years, it has been required not only to consider production costs, etc., but also to consider environmental measures with the goal of a sustainable society. For example, in the manufacturing industry, as a countermeasure to global warming, there is a trend to require that the amount of carbon dioxide emissions generated during the production of products be visualized and disclosed to the outside world in an effort to achieve a low-carbon society.

[0006] At this time, the calculation of carbon dioxide emissions does not use a general method, but preferably uses a specific method corresponding to the power generation method of the power company or the equipment installed for self-generation. That is, in the power company or the equipment for self-generation, there are also corporate efforts to reduce carbon dioxide emissions towards the realization of a low-carbon society. Therefore, considering the efforts of companies such as power companies and equipment manufacturers, it is required to visualize the carbon dioxide emissions generated in the production of products. Summary of the invention

[0007] One embodiment of the present invention provides the following technology: considering the carbon dioxide emissions generated by power generation by any one or more of the power generation equipment owned by the power company and the power generation equipment installed for self-generation, the situation related to the production of the product is grasped by calculating the carbon dioxide emissions generated by the production of the product.

[0008] A production management device involved in one embodiment of the present invention includes a control unit, which is configured to perform the following processing: for any one or more power generation equipment owned by an electric power company that has signed a contract to supply electric power to a production device and a power generation equipment set up for self-generation, obtain information indicating the amount of carbon dioxide emissions corresponding to the amount of electric power supplied from each of the power generation equipment; obtain information indicating the ratio of the amount of electric power supplied from each of the power generation equipment for producing a product by the production device; and calculate the amount of carbon dioxide emissions generated by the production of the product based on the amount of electric power used to produce the product, the ratio of the amount of electric power supplied from each of the power generation equipment, and the amount of carbon dioxide emissions corresponding to the amount of electric power generated by each of the power generation equipment.

[0009] A production device involved in one embodiment of the present invention is a production device for producing products, which includes a control unit, and the control unit is configured to perform the following processing: for any one or more power generation equipment owned by an electric power company that has signed a contract to supply electric power to the production device and the power generation equipment set up for self-generation, obtain information indicating the amount of carbon dioxide emissions corresponding to the amount of electric power supplied from each of the power generation equipment; obtain information indicating the ratio of the amount of electric power supplied from each of the power generation equipment for producing the product by the production device; and calculate the amount of carbon dioxide emissions generated by the production of the product based on the amount of electric power used to produce the product, the ratio of the amount of electric power supplied from each of the power generation equipment, and the amount of carbon dioxide emissions corresponding to the amount of electric power generated from each of the power generation equipment.

[0010] Effects of the Invention

[0011] According to one aspect of the present invention, there is provided a technology for understanding the status of product production by calculating the amount of carbon dioxide emissions generated by the production of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a diagram showing a state of the injection molding machine according to one embodiment when mold opening is completed.

[0013] Figure 2 It is a diagram showing a state of the injection molding machine according to one embodiment when the mold is clamped.

[0014] Figure 3 This is a conceptual diagram showing the relationship between a production company having an injection molding machine and a power company that supplies power according to the first embodiment.

[0015] Figure 4 This is a diagram showing the constituent elements of the control device for the injection molding machine according to the first embodiment in the form of functional blocks.

[0016] Figure 5 It is a diagram illustrating an example of a power generation facility setting screen output by the display control unit according to the first embodiment.

[0017] Figure 6 It is a diagram illustrating an example of a log information screen output by the display control unit according to the first embodiment.

[0018] Figure 7 This is a diagram illustrating an example of a display screen of power consumption and the like output by the display control unit according to the first embodiment.

[0019] Figure 8 This is a conceptual diagram showing the relationship between a production company having production equipment and a power company that supplies power according to the second embodiment.

[0020] In the figure: 10-injection molding machine, 700-control device, 701-CPU, 711-receiving unit, 712-display control unit, 713-saving unit, 714-acquisition unit, 715-calculation unit, 702-storage medium, 721-emission information storage unit, 722-proportion information storage unit, 723-log information storage unit, 750-operating device, 760-display device, 1000-production company, 1060-solar power generation equipment, 1100-management device, 1300-power company, 1301-head office, 1302-AA thermal power plant, 1303-BB hydroelectric power plant, 1304-CC solar power plant, 1305-server. DETAILED DESCRIPTION

[0021] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Furthermore, the embodiments described below do not limit the invention but are illustrative, and all features and combinations thereof described in the embodiments are not necessarily essential contents of the invention. In addition, in each of the drawings, the same or corresponding structures are sometimes marked with the same or corresponding symbols, and the description is omitted.

[0022] Figure 1 It is a diagram showing a state of the injection molding machine according to the first embodiment when mold opening is completed. Figure 2 1 is a diagram showing the state of the injection molding machine involved in the first embodiment when the mold is clamped. In this specification, the X-axis direction, the Y-axis direction and the Z-axis direction are directions perpendicular to each other. The X-axis direction and the Y-axis direction represent horizontal directions, and the Z-axis direction represents a vertical direction. When the mold clamping device 100 is horizontal, the X-axis direction is the mold opening and closing direction, and the Y-axis direction is the width direction of the injection molding machine 10. The negative side of the Y-axis direction is called the operating side, and the positive side of the Y-axis direction is called the opposite side of the operating side.

[0023] like Figure 1-2As shown, the injection molding machine 10 includes: a mold clamping device 100 for opening and closing a mold device 800; an ejection device 200 for ejecting a molded product molded by the mold device 800; an injection device 300 for injecting a molding material into the mold device 800; a moving device 400 for moving the injection device 300 forward and backward relative to the mold device 800; a control device 700 for controlling each component of the injection molding machine 10; and a frame 900 for supporting each component of the injection molding machine 10. The frame 900 includes a mold clamping device frame 910 for supporting the mold clamping device 100 and an injection device frame 920 for supporting the injection device 300. The mold clamping device frame 910 and the injection device frame 920 are respectively installed on the floor 2 via leveling casters 930. The control device 700 is arranged in the internal space of the injection device frame 920. The components of the injection molding machine 10 are described below.

[0024] (Mold clamping device)

[0025] In the description of the mold clamping device 100, the moving direction of the movable platen 120 when the mold is closed (for example, the positive direction of the X axis) is set to the front, and the moving direction of the movable platen 120 when the mold is opened (for example, the negative direction of the X axis) is set to the rear.

[0026] The mold clamping device 100 performs mold closing, pressure increase, mold clamping, pressure reduction, and mold opening of the mold device 800. The mold device 800 includes a fixed mold 810 and a movable mold 820. The mold clamping device 100 is, for example, a horizontal type, and the mold opening and closing direction is a horizontal direction. The mold clamping device 100 includes a fixed platen 110 on which the fixed mold 810 is mounted, a movable platen 120 on which the movable mold 820 is mounted, and a moving mechanism 102 that moves the movable platen 120 relative to the fixed platen 110 in the mold opening and closing direction.

[0027] The fixed platen 110 is fixed to the mold clamping device frame 910. The fixed mold 810 is mounted on the surface of the fixed platen 110 that faces the movable platen 120.

[0028] The movable platen 120 is arranged to be movable in the mold opening and closing direction relative to the mold clamping device frame 910. A guide 101 for guiding the movable platen 120 is laid on the mold clamping device frame 910. The movable mold 820 is mounted on the surface of the movable platen 120 facing the fixed platen 110.

[0029] The moving mechanism 102 closes the mold, increases the pressure, clamps the mold, reduces the pressure, and opens the mold of the mold device 800 by moving the movable platen 120 forward and backward relative to the fixed platen 110. The moving mechanism 102 includes: a toggle seat 130, which is arranged with a gap between the fixed platen 110; a connecting rod 140, which connects the fixed platen 110 and the toggle seat 130; a toggle mechanism 150, which moves the movable platen 120 relative to the toggle seat 130 in the mold opening and closing direction; a mold clamping motor 160, which operates the toggle mechanism 150; a motion conversion mechanism 170, which converts the rotational motion of the mold clamping motor 160 into a linear motion; and a mold thickness adjustment mechanism 180, which adjusts the gap between the fixed platen 110 and the toggle seat 130.

[0030] The toggle seat 130 is disposed at a distance from the fixed platen 110 and is placed on the mold clamping device frame 910 so as to be movable in the mold opening and closing direction. In addition, the toggle seat 130 may be arranged so as to be movable along a guide member laid on the mold clamping device frame 910. The guide member of the toggle seat 130 may be common to the guide member 101 of the movable platen 120.

[0031] In addition, in the present embodiment, the fixed pressure plate 110 is fixed to the mold clamping device frame 910, and the elbow seat 130 is configured to be freely movable relative to the mold clamping device frame 910 in the mold opening and closing direction. However, the elbow seat 130 may also be fixed to the mold clamping device frame 910, and the fixed pressure plate 110 may be configured to be freely movable relative to the mold clamping device frame 910 in the mold opening and closing direction.

[0032] The connecting rod 140 connects the fixed platen 110 and the toggle seat 130 at a distance L in the mold opening and closing direction. A plurality of connecting rods 140 (for example, four) may be used. The plurality of connecting rods 140 are arranged parallel to the mold opening and closing direction and extend according to the mold clamping force. A connecting rod strain detector 141 for detecting the strain of the connecting rod 140 may be provided on at least one of the connecting rods 140. The connecting rod strain detector 141 sends a signal indicating its detection result to the control device 700. The detection result of the connecting rod strain detector 141 is used for detecting the mold clamping force, etc.

[0033] In addition, in this embodiment, the tie rod strain detector 141 is used as the mold clamping force detector for detecting the mold clamping force, but the present invention is not limited to this. The mold clamping force detector is not limited to the strain type, and can also be a piezoelectric type, a capacitive type, a hydraulic type, an electromagnetic type, etc., and its installation position is not limited to the tie rod 140.

[0034] The toggle mechanism 150 is disposed between the movable platen 120 and the toggle seat 130, and moves the movable platen 120 in the mold opening and closing direction relative to the toggle seat 130. The toggle mechanism 150 includes a crosshead 151 that moves in the mold opening and closing direction and a pair of link groups that are bent and extended by the movement of the crosshead 151. The pair of link groups each includes a first link 152 and a second link 153 that are connected by a pin or the like so as to be able to bend and extend freely. The first link 152 is mounted by a pin or the like so as to be able to swing freely relative to the movable platen 120. The second link 153 is mounted by a pin or the like so as to be able to swing freely relative to the toggle seat 130. The second link 153 is mounted to the crosshead 151 via a third link 154. When the crosshead 151 is moved forward and backward relative to the toggle seat 130, the first link 152 and the second link 153 are bent and extended, and the movable platen 120 moves forward and backward relative to the toggle seat 130.

[0035] In addition, the structure of the toggle mechanism 150 is not limited to Figure 1 and Figure 2 For example, in Figure 1 and Figure 2 In the embodiment, the number of nodes of each link group is five, but may be four, or one end of the third link 154 may be connected to a node between the first link 152 and the second link 153 .

[0036] The mold clamping motor 160 is mounted on the toggle base 130 to operate the toggle mechanism 150. The mold clamping motor 160 causes the cross head 151 to move forward and backward relative to the toggle base 130, thereby bending and extending the first link 152 and the second link 153, thereby moving the movable platen 120 forward and backward relative to the toggle base 130. The mold clamping motor 160 is directly connected to the motion conversion mechanism 170, but may also be connected to the motion conversion mechanism 170 via a belt, a pulley, or the like.

[0037] The motion conversion mechanism 170 converts the rotational motion of the mold clamping motor 160 into the linear motion of the cross head 151. The motion conversion mechanism 170 includes a screw shaft and a screw nut screwed with the screw shaft. Balls or rollers may be interposed between the screw shaft and the screw nut.

[0038] The mold clamping device 100 performs a mold closing process, a pressure increasing process, a mold clamping process, a pressure reducing process, a mold opening process, and the like under the control of the control device 700 .

[0039] In the mold closing process, the mold clamping motor 160 is driven to move the crosshead 151 to the mold closing completion position at a set moving speed, and the movable platen 120 is moved forward, so that the movable mold 820 is brought into contact with the fixed mold 810. For example, the position and moving speed of the crosshead 151 are detected using a mold clamping motor encoder 161. The mold clamping motor encoder 161 detects the rotation of the mold clamping motor 160 and sends a signal indicating the detection result to the control device 700.

[0040] In addition, the crosshead position detector for detecting the position of the crosshead 151 and the crosshead moving speed detector for detecting the moving speed of the crosshead 151 are not limited to the mold clamping motor encoder 161, and a conventional detector may be used. Furthermore, the movable platen position detector for detecting the position of the movable platen 120 and the movable platen moving speed detector for detecting the moving speed of the movable platen 120 are not limited to the mold clamping motor encoder 161, and a conventional detector may be used.

[0041] In the pressure increasing step, the mold clamping motor 160 is further driven to further advance the cross head 151 from the mold closing completion position to the mold clamping position, thereby generating a mold clamping force.

[0042] In the mold clamping process, the mold clamping motor 160 is driven to maintain the position of the crosshead 151 at the mold clamping position. In the mold clamping process, the mold clamping force generated in the pressure increasing process is maintained. In the mold clamping process, a cavity space 801 is formed between the movable mold 820 and the fixed mold 810 (refer to Figure 2 ), the injection device 300 fills the liquid molding material into the cavity space 801. The filled molding material is solidified to obtain a molded product.

[0043] The number of cavity spaces 801 may be one or more. In the latter case, multiple molded products can be obtained at the same time. An insert may be arranged in a part of the cavity space 801, and a molding material may be filled in another part of the cavity space 801. A molded product in which the insert and the molding material are integrated can be obtained.

[0044] In the decompression step, the mold clamping motor 160 is driven to retract the crosshead 151 from the mold clamping position to the mold opening start position to retract the movable platen 120, thereby reducing the mold clamping force. The mold opening start position and the mold closing completion position may be the same position.

[0045] In the mold opening process, the mold clamping motor 160 is driven to move the crosshead 151 from the mold opening start position to the mold opening completion position at a set moving speed to move the movable platen 120 backward, thereby separating the movable mold 820 from the fixed mold 810. Then, the ejector device 200 ejects the molded product from the movable mold 820.

[0046] The setting conditions in the mold closing process, the pressure increasing process and the mold clamping process are set together as a series of setting conditions. For example, the moving speed, position (including the mold closing start position, the moving speed switching position, the mold closing completion position and the mold clamping position) and the mold clamping force of the crosshead 151 in the mold closing process and the pressure increasing process are set together as a series of setting conditions. The mold closing start position, the moving speed switching position, the mold closing completion position and the mold clamping position are arranged in sequence from the back to the front, and indicate the starting point and end point of the interval for setting the moving speed. The moving speed is set for each interval. The moving speed switching position can be one or more. The moving speed switching position can also be not set. Only one of the mold clamping position and the mold clamping force can be set.

[0047] The setting conditions in the decompression process and the mold opening process are also set in the same way. For example, the moving speed and position (mold opening start position, moving speed switching position and mold opening completion position) of the crosshead 151 in the decompression process and the mold opening process are set together as a series of setting conditions. The mold opening start position, the moving speed switching position and the mold opening completion position are arranged in sequence from the front to the back, and represent the starting point and end point of the interval for setting the moving speed. The moving speed is set for each interval. The moving speed switching position can be one or more. The moving speed switching position can also be not set. The mold opening start position and the mold closing completion position can be the same position. In addition, the mold opening completion position and the mold closing start position can be the same position.

[0048] Alternatively, the moving speed and position of the movable platen 120 may be set instead of the moving speed and position of the crosshead 151. Furthermore, the mold clamping force may be set instead of the position of the crosshead (eg, mold clamping position) and the position of the movable platen.

[0049] However, the toggle mechanism 150 amplifies the driving force of the mold clamping motor 160 and transmits it to the movable platen 120. The amplification factor is also called the toggle magnification. The toggle magnification changes according to the angle θ (hereinafter also referred to as "link angle θ") formed by the first link 152 and the second link 153. The link angle θ is calculated according to the position of the crosshead 151. When the link angle θ is 180°, the toggle magnification is maximum.

[0050] When the thickness of the mold device 800 changes due to replacement of the mold device 800 or temperature change of the mold device 800, mold thickness adjustment is performed to obtain a predetermined mold clamping force when the mold is clamped. In the mold thickness adjustment, for example, the interval L between the fixed platen 110 and the toggle seat 130 is adjusted so that the link angle θ of the toggle mechanism 150 becomes a predetermined angle at the time of mold contact between the movable mold 820 and the fixed mold 810.

[0051] The mold clamping device 100 has a mold thickness adjustment mechanism 180. The mold thickness adjustment mechanism 180 adjusts the mold thickness by adjusting the interval L between the fixed platen 110 and the toggle seat 130. In addition, regarding the timing of mold thickness adjustment, it is performed, for example, during the period from the end of the molding cycle to the start of the next molding cycle. The mold thickness adjustment mechanism 180 has, for example: a screw shaft 181 formed at the rear end of the connecting rod 140; a screw nut 182 that is held on the toggle seat 130 so as to be rotatable and unable to move forward and backward; and a mold thickness adjustment motor 183 that rotates the screw nut 182 that is threaded with the screw shaft 181.

[0052] A screw shaft 181 and a screw nut 182 are provided for each connecting rod 140. The rotational driving force of the mold thickness adjustment motor 183 can be transmitted to the plurality of screw nuts 182 via the rotational driving force transmission unit 185. The plurality of screw nuts 182 can be rotated synchronously. In addition, the plurality of screw nuts 182 can be rotated individually by changing the transmission path of the rotational driving force transmission unit 185.

[0053] The rotational driving force transmission part 185 is composed of, for example, gears. In this case, a driven gear is formed on the outer periphery of each lead screw nut 182, a driving gear is mounted on the output shaft of the mold thickness adjustment motor 183, and an intermediate gear meshing with the plurality of driven gears and the driving gear is held rotatably at the center of the toggle seat 130. In addition, the rotational driving force transmission part 185 may be composed of a belt, a pulley, etc. instead of a gear.

[0054] The operation of the mold thickness adjustment mechanism 180 is controlled by the control device 700. The control device 700 drives the mold thickness adjustment motor 183 to rotate the lead screw nut 182. As a result, the position of the toggle seat 130 relative to the connecting rod 140 is adjusted, and the interval L between the fixed platen 110 and the toggle seat 130 is adjusted. In addition, a plurality of mold thickness adjustment mechanisms may be used in combination.

[0055] The mold thickness adjustment motor encoder 184 is used to detect the interval L. The mold thickness adjustment motor encoder 184 detects the rotation amount and rotation direction of the mold thickness adjustment motor 183, and sends a signal indicating the detection result to the control device 700. The detection result of the mold thickness adjustment motor encoder 184 is used to monitor and control the position of the toggle seat 130 and the interval L. In addition, the toggle seat position detector for detecting the position of the toggle seat 130 and the interval detector for detecting the interval L are not limited to the mold thickness adjustment motor encoder 184, and a conventional detector can be used.

[0056] The mold clamping device 100 may include a mold temperature regulator for regulating the temperature of the mold device 800. The mold device 800 includes a flow path of a temperature regulating medium therein. The mold temperature regulator regulates the temperature of the mold device 800 by regulating the temperature of the temperature regulating medium supplied to the flow path of the mold device 800.

[0057] Furthermore, the mold clamping device 100 of the present embodiment is a horizontal type in which the mold opening and closing direction is the horizontal direction, but may be a vertical type in which the mold opening and closing direction is the vertical direction.

[0058] The mold clamping device 100 of this embodiment includes the mold clamping motor 160 as a driving source, but may include a hydraulic cylinder instead of the mold clamping motor 160. Furthermore, the mold clamping device 100 may include a linear motor for mold opening and closing, and may include an electromagnet for mold clamping.

[0059] (Ejector device)

[0060] In the description of the ejection device 200, similar to the description of the mold clamping device 100, the moving direction of the movable platen 120 when the mold is closed (for example, the positive direction of the X-axis) is set to the front and the moving direction of the movable platen 120 when the mold is opened (for example, the negative direction of the X-axis) is set to the rear.

[0061] The ejector device 200 is mounted on the movable platen 120 and moves forward and backward together with the movable platen 120. The ejector device 200 includes an ejector rod 210 for ejecting the molded product from the mold device 800 and a drive mechanism 220 for moving the ejector rod 210 along the moving direction of the movable platen 120 (X-axis direction).

[0062] The ejector rod 210 is configured to be able to move forward and backward in the through hole of the movable platen 120. The front end of the ejector rod 210 contacts the ejector plate 826 of the movable mold 820. The front end of the ejector rod 210 may be connected to the ejector plate 826 or may not be connected thereto.

[0063] The driving mechanism 220 includes, for example, an ejector motor and a motion conversion mechanism that converts the rotational motion of the ejector motor into the linear motion of the ejector rod 210. The motion conversion mechanism includes a screw shaft and a screw nut screwed with the screw shaft. Balls or rollers may be interposed between the screw shaft and the screw nut.

[0064] The ejector device 200 performs an ejection process under the control of the control device 700. In the ejection process, the ejector rod 210 is moved forward from the standby position to the ejection position at a set moving speed to advance the ejector plate 826, thereby ejecting the molded product. Then, the ejector motor is driven to move the ejector rod 210 backward at a set moving speed, and the ejector plate 826 is moved backward to the original standby position.

[0065] For example, an ejector motor encoder is used to detect the position and moving speed of the ejector rod 210. The ejector motor encoder detects the rotation of the ejector motor and sends a signal indicating the detection result to the control device 700. In addition, the ejector rod position detector for detecting the position of the ejector rod 210 and the ejector rod moving speed detector for detecting the moving speed of the ejector rod 210 are not limited to the ejector motor encoder, and a conventional detector can be used.

[0066] (Injection device)

[0067] In the description of the injection device 300, unlike the description of the mold clamping device 100 and the description of the ejection device 200, the moving direction of the screw 330 during filling (for example, the negative direction of the X-axis) is set to the front and the moving direction of the screw 330 during metering (for example, the positive direction of the X-axis) is set to the rear.

[0068] The injection device 300 is provided on a sliding base 301, and the sliding base 301 is configured to be able to move forward and backward freely relative to the injection device frame 920. The injection device 300 is configured to be able to move forward and backward freely relative to the mold device 800. The injection device 300 contacts the mold device 800, and fills the molding material measured in the cylinder 310 into the cavity space 801 in the mold device 800. The injection device 300 includes, for example: a cylinder 310 for heating the molding material; a nozzle 320 provided at the front end of the cylinder 310; a screw 330 configured to be able to move forward and backward freely and to rotate freely in the cylinder 310; a metering motor 340 for rotating the screw 330; an injection motor 350 for moving the screw 330 forward and backward; and a load detector 360 for detecting the load transmitted between the injection motor 350 and the screw 330.

[0069] The cylinder 310 heats the molding material supplied from the supply port 311. The molding material includes, for example, resin. The molding material is formed into, for example, granules and supplied to the supply port 311 in a solid state. The supply port 311 is formed at the rear of the cylinder 310. A cooler 312 such as a water-cooled cylinder is provided on the outer periphery of the rear of the cylinder 310. A heater 313 such as a belt heater and a temperature detector 314 are provided on the outer periphery of the cylinder 310 in front of the cooler 312.

[0070] The cylinder 310 is divided into a plurality of regions along the axial direction (e.g., the X-axis direction) of the cylinder 310. Heaters 313 and temperature detectors 314 are respectively provided in the plurality of regions. Set temperatures are respectively set for the plurality of regions, and the control device 700 controls the heater 313 so that the detected temperature of the temperature detector 314 becomes the set temperature.

[0071] The nozzle 320 is provided at the front end of the cylinder 310 and is pressed by the mold device 800. A heater 313 and a temperature detector 314 are provided on the outer periphery of the nozzle 320. The control device 700 controls the heater 313 so that the detected temperature of the nozzle 320 becomes a set temperature.

[0072] The screw 330 is configured to be able to rotate freely and to move forward and backward freely in the cylinder 310. When the screw 330 is rotated, the molding material is transported forward along the spiral groove of the screw 330. While the molding material is transported forward, it is gradually melted by the heat from the cylinder 310. As the liquid molding material is transported forward to the front of the screw 330 and accumulated in the front part of the cylinder 310, the screw 330 is retracted. Then, when the screw 330 is advanced, the liquid molding material accumulated in front of the screw 330 is injected from the nozzle 320 and filled in the mold device 800.

[0073] A check ring 331 is installed at the front of the screw 330 so as to be able to move forward and backward. The check ring 331 serves as a check valve to prevent the molding material from flowing backward from the front to the rear of the screw 330 when the screw 330 is pushed forward.

[0074] When the screw 330 is advanced, the check ring 331 is pushed backward by the pressure of the molding material in front of the screw 330, and thus retreats relatively to the screw 330 to a closed position that blocks the flow path of the molding material (see FIG. Figure 2 ). Thus, the molding material accumulated in front of the screw 330 is prevented from flowing backward.

[0075] On the other hand, when the screw 330 is rotated, the check ring 331 is pushed forward by the pressure of the molding material conveyed to the front along the spiral groove of the screw 330, and moves forward relative to the screw 330 to an open position (refer to Figure 1 ). As a result, the molding material is transported to the front of the screw 330.

[0076] The check ring 331 may be of a co-rotating type that rotates together with the screw 330 or a non-co-rotating type that does not rotate together with the screw 330 .

[0077] In addition, the injection device 300 may include a driving source that moves the check ring 331 forward and backward relative to the screw 330 between the open position and the closed position.

[0078] The metering motor 340 rotates the screw 330. The driving source for rotating the screw 330 is not limited to the metering motor 340, and may be, for example, a hydraulic pump or the like.

[0079] The injection motor 350 moves the screw 330 forward and backward. A motion conversion mechanism that converts the rotational motion of the injection motor 350 into the linear motion of the screw 330 is provided between the injection motor 350 and the screw 330. The motion conversion mechanism includes, for example, a screw shaft and a screw nut screwed with the screw shaft. Balls and rollers may be provided between the screw shaft and the screw nut. The driving source that moves the screw 330 forward and backward is not limited to the injection motor 350, and may be, for example, a hydraulic cylinder.

[0080] The load detector 360 detects the load transmitted between the injection motor 350 and the screw 330. The detected load is converted into pressure by the control device 700. The load detector 360 is provided on the transmission path of the load between the injection motor 350 and the screw 330, and detects the load acting on the load detector 360.

[0081] The load detector 360 sends a signal of the detected load to the control device 700. The load detected by the load detector 360 is converted into a pressure acting between the screw 330 and the molding material, and is used to control and monitor the pressure on the screw 330 from the molding material, the back pressure of the screw 330, and the pressure acting from the screw 330 to the molding material.

[0082] In addition, the pressure detector for detecting the pressure of the molding material is not limited to the load detector 360, and a conventional detector can be used. For example, a nozzle pressure sensor or a mold internal pressure sensor can be used. The nozzle pressure sensor is provided at the nozzle 320. The mold internal pressure sensor is provided inside the mold device 800.

[0083] The injection device 300 performs a metering process, a filling process, a pressure-maintaining process, etc. under the control of the control device 700. The filling process and the pressure-maintaining process can be collectively referred to as an injection process.

[0084] In the metering process, the metering motor 340 is driven to rotate the screw 330 at a set speed, so that the molding material is transported to the front along the spiral groove of the screw 330. As a result, the molding material is gradually melted. As the liquid molding material is transported to the front of the screw 330 and accumulated in the front part of the cylinder 310, the screw 330 is retracted. For example, the rotation speed of the screw 330 is detected using a metering motor encoder 341. The metering motor encoder 341 detects the rotation of the metering motor 340 and sends a signal indicating its detection result to the control device 700. In addition, the screw speed detector that detects the rotation speed of the screw 330 is not limited to the metering motor encoder 341, and a conventional detector can be used.

[0085] In order to prevent the screw 330 from retreating rapidly during the metering process, the injection motor 350 may be driven to apply a set back pressure to the screw 330. For example, the back pressure on the screw 330 is detected using the load detector 360. When the screw 330 retreats to the metering completion position and a predetermined amount of molding material is accumulated in front of the screw 330, the metering process is completed.

[0086] The position and speed of the screw 330 in the metering process are set as a series of setting conditions. For example, the metering start position, the speed switching position and the metering completion position are set. These positions are arranged in sequence from the front to the back, and represent the starting point and the end point of the interval for setting the speed. The speed is set for each interval. The speed switching position can be one or more. The speed switching position can also be not set. In addition, the back pressure is set for each interval.

[0087] In the filling process, the injection motor 350 is driven to make the screw 330 move forward at a set moving speed, and the liquid molding material accumulated in front of the screw 330 is filled into the cavity space 801 in the mold device 800. For example, the position and moving speed of the screw 330 are detected using the injection motor encoder 351. The injection motor encoder 351 detects the rotation of the injection motor 350 and sends a signal indicating its detection result to the control device 700. If the position of the screw 330 reaches the set position, the switch from the filling process to the pressure holding process (the so-called V / P switch) is performed. The position where the V / P switch is performed is also referred to as the V / P switching position. The set moving speed of the screw 330 can be changed according to the position and time of the screw 330.

[0088] The position and moving speed of the screw 330 in the filling process are set as a series of setting conditions. For example, the filling start position (also called the "injection start position"), the moving speed switching position and the V / P switching position are set. These positions are arranged in sequence from the back to the front, and indicate the start and end points of the interval for setting the moving speed. The moving speed is set for each interval. The moving speed switching position can be one or more. The moving speed switching position can also be not set.

[0089] The upper limit value of the pressure of the screw 330 is set for each interval of the moving speed of the screw 330. The pressure of the screw 330 is detected by the load detector 360. When the pressure of the screw 330 is below the set pressure, the screw 330 moves forward at the set moving speed. On the other hand, when the pressure of the screw 330 exceeds the set pressure, the screw 330 moves forward at a moving speed slower than the set moving speed for the purpose of protecting the mold so that the pressure of the screw 330 becomes below the set pressure.

[0090] In addition, in the filling process, after the position of the screw 330 reaches the V / P switching position, the screw 330 may be temporarily stopped at the V / P switching position, and then the V / P switching may be performed. Alternatively, the screw 330 may be moved forward or backward at a slow speed instead of stopping the screw 330 just before the V / P switching. Furthermore, the screw position detector for detecting the position of the screw 330 and the screw moving speed detector for detecting the moving speed of the screw 330 are not limited to the injection motor encoder 351, and a conventional detector may be used.

[0091] In the pressure holding process, the injection motor 350 is driven to push the screw 330 forward, the pressure of the molding material at the front end of the screw 330 (hereinafter also referred to as "holding pressure") is maintained at the set pressure, and the molding material remaining in the cylinder 310 is pushed toward the mold device 800. The insufficient amount of molding material caused by the cooling shrinkage in the mold device 800 can be supplemented. For example, the holding pressure is detected using a load detector 360. The setting value of the holding pressure can be changed according to the elapsed time from the start of the pressure holding process. The holding pressure and the holding time of the holding pressure in the pressure holding process can be set separately in multiples, or can be set together as a series of setting conditions.

[0092] In the pressure holding process, the molding material in the cavity space 801 in the mold device 800 is gradually cooled. When the pressure holding process is completed, the entrance of the cavity space 801 is blocked by the solidified molding material. This state is called gate sealing, which prevents the molding material from flowing back from the cavity space 801. After the pressure holding process, the cooling process begins. In the cooling process, the molding material in the cavity space 801 is solidified. In order to shorten the molding cycle time, a metering process can be performed in the cooling process.

[0093] In addition, the injection device 300 of the present embodiment is a coaxial screw type, but it can also be a pre-plastic type, etc. The injection device of the pre-plastic type supplies the molding material melted in the plasticizing cylinder to the injection cylinder, and injects the molding material from the injection cylinder into the mold device. In the plasticizing cylinder, the screw is configured to be rotatable and cannot move forward or backward, or the screw is configured to be rotatable and move forward and backward freely. On the other hand, in the injection cylinder, the plunger is configured to move forward and backward freely.

[0094] Furthermore, the injection device 300 of the present embodiment is a horizontal type in which the axial direction of the cylinder 310 is in the horizontal direction, but it may be a vertical type in which the axial direction of the cylinder 310 is in the up-down direction. The mold clamping device combined with the vertical injection device 300 may be a vertical type or a horizontal type. Similarly, the mold clamping device combined with the horizontal injection device 300 may be a horizontal type or a vertical type.

[0095] (Mobile device)

[0096] In the description of the moving device 400, similar to the description of the injection device 300, the moving direction of the screw 330 during filling (for example, the negative direction of the X axis) is set to the front and the moving direction of the screw 330 during metering (for example, the positive direction of the X axis) is set to the rear.

[0097] The moving device 400 moves the injection device 300 forward and backward relative to the mold device 800. The moving device 400 also presses the nozzle 320 against the mold device 800 to generate nozzle contact pressure. The moving device 400 includes a hydraulic pump 410, a motor 420 as a driving source, and a hydraulic cylinder 430 as a hydraulic actuator.

[0098] The hydraulic pump 410 has a first port 411 and a second port 412. The hydraulic pump 410 is a bidirectionally rotatable pump, and generates hydraulic pressure by sucking working fluid (e.g., oil) from one of the first port 411 and the second port 412 and discharging it from the other port by switching the rotation direction of the motor 420. Alternatively, the hydraulic pump 410 can also suck working fluid from a tank and discharge the working fluid from one of the first port 411 and the second port 412.

[0099] The motor 420 operates the hydraulic pump 410. The motor 420 drives the hydraulic pump 410 with a rotation direction and torque corresponding to a control signal from the control device 700. The motor 420 may be an electric motor or an electric servomotor.

[0100] The hydraulic cylinder 430 has a cylinder body 431, a piston 432, and a piston rod 433. The cylinder body 431 is fixed to the injection device 300. The piston 432 divides the interior of the cylinder body 431 into a front chamber 435 as a first chamber and a rear chamber 436 as a second chamber. The piston rod 433 is fixed to the fixed platen 110.

[0101] The front chamber 435 of the hydraulic cylinder 430 is connected to the first port 411 of the hydraulic pump 410 via the first flow path 401. The working fluid discharged from the first port 411 is supplied to the front chamber 435 via the first flow path 401, so that the injection device 300 is pushed forward. The injection device 300 moves forward, so that the nozzle 320 is pressed against the fixed mold 810. The front chamber 435 functions as a pressure chamber that generates a nozzle contact pressure of the nozzle 320 by the pressure of the working fluid supplied from the hydraulic pump 410.

[0102] On the other hand, the rear chamber 436 of the hydraulic cylinder 430 is connected to the second port 412 of the hydraulic pump 410 via the second flow path 402. The hydraulic fluid discharged from the second port 412 is supplied to the rear chamber 436 of the hydraulic cylinder 430 via the second flow path 402, so that the injection device 300 is pushed backward. The injection device 300 retreats, and the nozzle 320 is separated from the fixed mold 810.

[0103] In this embodiment, the moving device 400 includes the hydraulic cylinder 430 , but the present invention is not limited thereto. For example, an electric motor and a motion conversion mechanism that converts the rotational motion of the electric motor into the linear motion of the injection device 300 may be used instead of the hydraulic cylinder 430 .

[0104] (Control device)

[0105] The control device 700 is constituted by a computer, for example. Figure 1-2 As shown, the control device 700 has a CPU (Central Processing Unit) 701, a storage medium such as a memory 702, an input interface 703, an output interface 704, and a communication interface 705. The control device 700 performs various controls 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 through the input interface 703, and sends a signal to the outside through the output interface 704. In addition, the control device 700 sends information to an external device through the communication interface 705.

[0106] The control device 700 repeatedly produces molded products by repeatedly performing metering steps, mold closing steps, pressure increasing steps, mold clamping steps, filling steps, pressure holding steps, cooling steps, pressure reducing steps, mold opening steps, and ejection steps. A series of actions for obtaining molded products, such as the actions from the start of a metering step to the start of the next metering step, are also referred to as "injection" or "molding cycle". In addition, the time required for one injection is also referred to as "molding cycle time" or "cycle time".

[0107] A molding cycle includes, for example, a metering process, a mold closing process, a pressure increasing process, a mold closing process, a filling process, a pressure holding process, a cooling process, a decompression process, a mold opening process, and an ejection process in sequence. The order here is the order in which each process starts. The filling process, the pressure holding process, and the cooling process are performed during the mold closing process. The start of the mold closing process may also coincide with the start of the filling process. The completion of the decompression process coincides with the start of the mold opening process.

[0108] In addition, in order to shorten the molding cycle time, multiple processes can be performed simultaneously. For example, the metering process can be performed during the cooling process of the previous molding cycle, or during the mold closing process. In this case, the mold closing process can be performed at the beginning of the molding cycle. In addition, the filling process can be started during the mold closing process. In addition, the ejection process can be started during the mold opening process. When an on-off valve for opening and closing the flow path of the nozzle 320 is provided, the mold opening process can be started during the metering process. This is because, even if the mold opening process is started during the metering process, as long as the on-off valve closes the flow path of the nozzle 320, the molding material will not leak from the nozzle 320.

[0109] In addition, a primary molding cycle may include processes other than the metering process, the mold closing process, the pressure increasing process, the mold clamping process, the filling process, the pressure holding process, the cooling process, the decompression process, the mold opening process, and the ejection process.

[0110] For example, after the pressure holding process is completed and before the metering process is started, a pre-metering suction process can be performed to retract the screw 330 to a preset metering start position. The pressure of the molding material accumulated in front of the screw 330 can be reduced before the metering process is started, thereby preventing the screw 330 from retreating sharply when the metering process is started.

[0111] Furthermore, after the metering process is completed and before the filling process is started, a post-metering backsucking process may be performed to retract the screw 330 to a preset filling start position (also referred to as an "injection start position"). The pressure of the molding material accumulated in front of the screw 330 can be reduced before the filling process is started, thereby preventing the molding material from leaking from the nozzle 320 before the filling process is started.

[0112] The control device 700 is connected to an operating device 750 that accepts input operations from a staff member and a display device 760 that displays a screen. The operating device 750 and the display device 760 can be, for example, composed of a touch panel 770 and integrated. The touch panel 770 as the display device 760 displays a screen under the control of the control device 700. For example, the display device 760 may include a liquid crystal panel (an example of a display unit) for displaying a screen. In addition, the display unit is not limited to a liquid crystal panel, and other display devices such as organic EL may also be used. On the screen of the touch panel 770, for example, information such as the settings of the injection molding machine 10 and the current state of the injection molding machine 10 can be displayed. The touch panel 770 can accept operations in the displayed screen area. In addition, operating parts such as buttons and input bars that accept input operations from staff members can be displayed in the screen area of ​​the touch panel 770. The touch panel 770 as the operating device 750 detects the input operation of the staff member on the screen and outputs a signal corresponding to the input operation to the control device 700. Thus, for example, the staff can operate the operating unit provided on the screen while confirming the information displayed on the screen to perform settings of the injection molding machine 10 (including input of set values). Furthermore, by the staff operating the operating unit provided on the screen, the injection molding machine 10 corresponding to the operating unit can be operated. In addition, the operation of the injection molding machine 10 can be, for example, the operation (including stop) of the mold clamping device 100, the ejection device 200, the injection device 300, the moving device 400, etc. Furthermore, the operation of the injection molding machine 10 can also be the switching of the screen displayed on the touch panel 770 as the display device 760, etc.

[0113] In addition, the operating device 750 and the display device 760 of this embodiment are described as being integrated into a touch panel 770, but they may be provided independently. In addition, a plurality of operating devices 750 may be provided. The operating device 750 and the display device 760 are arranged on the operating side (negative direction of the Y axis) of the mold clamping device 100 (more specifically, the fixed platen 110).

[0114] (First embodiment)

[0115] Next, the relationship between a production company having production equipment and a power company that supplies power will be described. Figure 3 1 is a conceptual diagram showing the relationship between a production company 1000 having an injection molding machine 10 according to the present embodiment and a power company 1300 that supplies power. Figure 3 In the illustrated example, an example in which a production company owns the injection molding machine 10 as a production device is described.

[0116] In this embodiment, since the production company 1000 has signed a contract with the power company 1300, it can receive power supply from the power company 1300. In addition, in this embodiment, an example is described in which the power company 1300 is called XX Electric Power Co., Ltd. and performs power generation, transmission and retail. However, this embodiment is not limited to this structure, and as long as the production company 1000 can grasp information related to power generation, power generation, transmission and retail can also be performed by different companies.

[0117] In the present embodiment, a case where the production company 1000 signs a contract with the power company 1300 is described. However, the production company 1000 may sign contracts with a plurality of power companies in order to receive supply of power.

[0118] like Figure 3 As shown, the power company 1300 includes a head office 1301, an AA thermal power plant 1302, a BB hydroelectric power plant 1303, and a CC solar power plant 1304. In this embodiment, an example of power generation equipment supplied by the power company 1300 is shown, but other power generation equipment such as electronic power generation or geothermal power generation may also be used.

[0119] The head office 1301 is communicatively connected to the AA thermal power plant 1302, the BB hydroelectric power plant 1303, and the CC solar power plant 1304. Thus, the head office 1301 can grasp the status of the AA thermal power plant 1302, the BB hydroelectric power plant 1303, and the CC solar power plant 1304. For example, the head office 1301 can grasp the amount of electricity generated by each power generation facility and the amount of carbon dioxide emissions generated during power generation.

[0120] Furthermore, a server 1305 is provided in the head office 1301, and the server 1305 is used to provide current power information based on the conditions of the power generation equipment.

[0121] The server 1305 is connected to a public network to which external devices can connect. The server 1305 discloses information about power generation equipment owned by the power company 1300. An example of information provided by the server 1305 is shown below. In addition, this embodiment is not limited to the information provided by the server 1305, and other information may be disclosed.

[0122] Specifically, the server 1305 provides information indicating the ratio of the amount of electric power generated by each of the AA thermal power plant 1302 , the BB hydroelectric power plant 1303 , and the CC solar power plant 1304 , with respect to the amount of electric power provided by the electric power company 1300 .

[0123] Furthermore, the server 1305 provides information indicating the amount of carbon dioxide emissions corresponding to the amount of electric power generated, with respect to each of the AA thermal power plant 1302 , the BB hydroelectric power plant 1303 , and the CC solar power plant 1304 .

[0124] like Figure 3 As shown, the production company 1000 includes a management device 1100, a plurality of injection molding machines 10, and a pulverizer 15. The management device 1100 is connected to each of the plurality of injection molding machines 10 and the pulverizer 15 via a communication line.

[0125] Furthermore, the production company 1000 may install a solar power generation facility 1060 for self-generation.

[0126] The management device 1100 manages the molding of the molded product by the injection molding machine 10. For example, the management device 1100 manages information transmitted from a plurality of injection molding machines 10, a pulverizer 15, and the like.

[0127] Furthermore, when the production company 1000 is provided with the solar power generation equipment 1060, the management device 1100 may retain information indicating the amount of carbon dioxide emissions corresponding to the amount of electricity generated in the solar power generation equipment 1060. The amount of carbon dioxide emissions corresponding to the amount of electricity generated in the solar power generation equipment 1060 may be, for example, information (e.g., catalog information) provided by a company that provides the solar power generation equipment 1060 to the production company 1000. Furthermore, the amount of carbon dioxide emissions corresponding to the amount of electricity generated in the solar power generation equipment 1060 may also be calculated based on the amount of carbon dioxide emissions required for the production of the solar power generation equipment 1060 and the amount of electricity that can be generated until the predicted life of the solar power generation equipment 1060. Furthermore, the management device 1100 may transmit information indicating the amount of carbon dioxide emissions corresponding to the amount of electricity generated in the solar power generation equipment 1060 to the injection molding machine 10.

[0128] The pulverizer 15 is used to pulverize runners and the like generated during molding by the injection molding machine 10 .

[0129] Furthermore, a mold temperature controller 11 , a take-out robot 12 , and a dryer 13 are respectively connected to the plurality of injection molding machines 10 so as to be communicable therewith.

[0130] The mold temperature regulator 11 is used to adjust the temperature of the mold device 800 of the injection molding machine 10 according to a request from the injection molding machine 10. The take-out robot 12 is used to take out the molded product molded by the injection molding machine 10 according to a request from the injection molding machine 10. The dryer 13 is used to dry the molded product molded by the injection molding machine 10 according to a request from the injection molding machine 10.

[0131] The injection molding machine 10 according to the present embodiment is configured to calculate the amount of carbon dioxide emissions generated by molding (an example of production) of a molded product and to display the calculated amount of emissions.

[0132] In order to display the amount of carbon dioxide emissions, in addition to the amount of electricity used in the injection molding machine 10, it is necessary to set information indicating the ratio of the amount of electricity generated by each power generation equipment (AA thermal power plant 1302, BB hydroelectric power plant 1303, CC solar power plant 1304 and solar power generation equipment 1060) and information indicating the amount of carbon dioxide emissions corresponding to the amount of electricity generated in each power generation equipment.

[0133] Therefore, the worker 1050 involved in this embodiment accesses the server 1305 through the portable communication terminal 1051 and confirms the information disclosed in the server 1305. Then, the worker 1050 sets information indicating the ratio of the amount of electric power generated by each power generation equipment (AA thermal power plant 1302, BB hydroelectric power plant 1303 and CC solar power plant 1304) and information indicating the amount of carbon dioxide emissions corresponding to the amount of electric power generated in each power generation equipment for the injection molding machine 10 based on the information disclosed in the server 1305 and the information related to the solar power generation equipment 1060 installed for self-generation.

[0134] In addition, the method of setting information for the injection molding machine 10 by the worker 1050 is not limited. For example, the worker 1050 can input information indicating the ratio of the amount of electricity generated by each power generation device (AA thermal power plant 1302, BB hydroelectric power plant 1303, and CC solar power plant 1304) and information indicating the amount of carbon dioxide emissions corresponding to the amount of electricity generated in each power generation device to the management device 1100. Moreover, the management device 1100 sends the input information to each injection molding machine 10. Thus, the control device 700 of the injection molding machine 10 can set information indicating the ratio of the amount of electricity generated by each power generation device (AA thermal power plant 1302, BB hydroelectric power plant 1303, and CC solar power plant 1304) and information indicating the amount of carbon dioxide emissions corresponding to the amount of electricity generated in each power generation device.

[0135] Figure 4 This is a diagram showing the constituent elements of the control device 700 of the injection molding machine 10 according to the present embodiment in the form of functional blocks. Figure 4 The functional blocks shown in the figure are conceptual functional blocks and do not necessarily have to be physically constructed as shown. All or part of each functional block can be functionally or physically dispersed / integrated in any unit to form a structure. All or any part of each processing function performed in each functional block of the control device 700 is implemented by a program executed by the CPU 701. Alternatively, each functional block can be implemented as hardware based on wired logic. Figure 4 As shown, the CPU 701 of the control device 700 includes a receiving unit 711, a display control unit 712, a storage unit 713, an acquisition unit 714, and a calculation unit 715. In addition, the control device 700 includes an emission information storage unit 721, a ratio information storage unit 722, and a log information storage unit 723 in the storage medium 702.

[0136] The emission information storage unit 721 stores emission information indicating the emission of carbon dioxide corresponding to the amount of electric power generated in each power generation device (name of the power generation device) that supplies electric power to the injection molding machine 10. The emission information may be information sent from the management device 1100 or information input by the staff 1050. The emission information may be an emission coefficient for deriving the emission by multiplying the amount of electric power or a conversion formula for deriving the emission of carbon dioxide, and any information may be used as long as the emission can be derived.

[0137] The carbon dioxide emission information corresponding to the amount of electricity generated by the power generation equipment of the power company is set as the information provided by the power company for each power generation equipment. In addition, the carbon dioxide emission information corresponding to the amount of electricity generated by the power generation equipment installed for self-generation is set as the information (for example, catalog information) provided by the company that provides the power generation equipment to the production company 1000. In this way, the emission information is the information provided specifically for each power generation equipment, so the specific amount of carbon dioxide emission can be calculated.

[0138] The ratio information storage unit 722 stores ratio information indicating the ratio of the amount of power supplied from each power generation device to the injection molding machine 10 to mold a molded product. The ratio information may be information sent from the management device 1100 or information input by the staff 1050.

[0139] The log information storage unit 723 stores log information indicating actual values, which are detection results detected by various sensors (an example of a detection unit).

[0140] The display control unit 712 controls the display of data such as a display screen on the touch panel 770. The display control unit 712 involved in this embodiment can output a display screen that represents actual values ​​detected in each process of the molding process based on the injection molding machine 10 for each shot to the touch panel 770. In addition, this embodiment describes an example of outputting the display screen and the like to the touch panel 770, but the output destination of the data is not limited to the touch panel 770. For example, the display control unit 712 can also output the display screen and the like data to the portable communication terminal 1051 connected via a network.

[0141] The receiving unit 711 receives an operation by a worker from the touch panel 770 via the input interface 703 .

[0142] The storage unit 713 stores various information in the storage medium 702. For example, the storage unit 713 stores actual values ​​and statistical values ​​during molding as log information in the log information storage unit 723. Operations for saving log information are performed on the log information screen displayed by the display control unit 712. The specific operations will be described later.

[0143] The acquisition unit 714 acquires detection results from various sensors provided in the injection molding machine 10. For example, the acquisition unit 714 acquires the amount of electric power consumed by the injection molding machine 10.

[0144] The calculation unit 715 calculates numerical values ​​to be displayed on the screen based on actual values ​​of various sensors.

[0145] In this embodiment, the ratio of the amount of power supplied from each power generation facility for calculating the amount of carbon dioxide emissions can be input by the worker 1050. Therefore, a screen for setting the ratio of the amount of power displayed on the display device 760 of this embodiment will be described.

[0146] Figure 5 2 is a diagram illustrating an example of a power generation facility setting screen output by the display control unit 712 according to the present embodiment.

[0147] Figure 5 The power generation equipment setting screen shown (an example of the first screen) is an example of a screen for receiving input of information related to the ratio of the amount of electric power supplied from each power generation equipment, for any one or more power generation equipment among the power generation equipment owned by the power company 1300 that has signed a contract to supply electric power to the injection molding machine 10 and the power generation equipment (solar power generation equipment 1060) set up for self-generation.

[0148] exist Figure 5 The power generation facility setting screen 1500 shown includes name columns 1501 , 1502 , 1503 , and 1504 , scale columns 1511 , 1512 , 1513 , and 1514 , a row addition button 1505 , and a setting button 1521 .

[0149] exist Figure 5 In the power generation facility setting screen 1500 shown, each time the accepting unit 711 accepts pressing of the row addition button 1505 , the display control unit 712 adds one name column and one scale column to the display.

[0150] exist Figure 5In the example shown, it is assumed that the receiving unit 711 receives four presses of the row addition button 1505. Then, the receiving unit 711 receives input of the names of four power generation facilities (for example, "AA thermal power plant (XX)", "BB hydroelectric power plant (XX)", "CC solar power plant (XX)", and "solar power plant (our company)").

[0151] The name column according to the present embodiment is, for example, a pull-down menu, and can accept a selection from the names of power generation facilities stored in the emission amount information storage unit 721 in association with the emission amount information.

[0152] In addition, the name of a new power generation device may be input in the name column. In this case, the amount of carbon dioxide emissions corresponding to the amount of electricity in the power generation device is input. Thus, the storage unit 713 associates the name of the power generation device with the emission information indicating the amount of carbon dioxide emissions corresponding to the amount of electricity in the power generation device and stores them in the emission information storage unit 721.

[0153] The staff member refers to the information provided by the server 1305 and inputs the proportion of the power generation of each power generation device in the proportion column in the form of a percentage. In response to this, the receiving unit 711 receives the input of the proportion of the power supplied from each power generation device selected in the name column from the proportion column. In this way, the proportion of the power generated by each power generation device can be associated with each other. In addition, in this embodiment, as an example of a method of accepting the input of a proportion, an example of accepting the input of a percentage is shown, but it is not limited to the input based on a percentage, as long as it is information that can be grasped and recognized.

[0154] exist Figure 5 In the example shown, it is set that "AA Thermal Power Plant (XX)" generates "60%", "BB Hydroelectric Power Plant (XX)" generates "20%", "CC Solar Power Plant (XX)" generates "10%" and "Solar Power Generation (our company)" generates "10%".

[0155] Furthermore, when the receiving unit 711 receives the pressing of the setting button 1521, the storage unit 713 associates the power generation equipment and the ratio of the power input to each power generation equipment according to the input in the name column and the ratio column, and stores them in the ratio information storage unit 722. In this way, the ratio of the power supplied from each power generation equipment can be determined.

[0156] As described above, the control device 700 according to the present embodiment displays the power generation device setting screen (an example of a first screen) 1500 capable of receiving input of information on the ratio of the amount of electric power supplied from each power generation device, for any one or more power generation devices among the power generation devices owned by the power company that has signed a contract for supplying electric power to the injection molding machine 10 and the power generation devices installed for self-generation, on the display device 760. Thus, the injection molding machine 10 can grasp the ratio of the amount of electric power of each power generation device used to mold the molded product.

[0157] In the power generation equipment setting screen 1500 according to the present embodiment, an example is described in which the power generation equipment owned by XX Electric Power Co., Ltd., which is the power company 1300, and the power generation equipment installed for self-generation can be selected, but the power generation equipment to be selected is not limited. For example, when contracts are signed with multiple power companies, it is possible to select from the power generation equipment owned by each of the multiple power companies.

[0158] Then, when the injection molding machine 10 starts molding a molded product, the acquisition unit 714 acquires the amount of electric power supplied to mold the molded product each time the molded product is molded. In this way, the amount of carbon dioxide emissions can be calculated.

[0159] When calculating the carbon dioxide emission, the calculation unit 715 obtains information indicating the carbon dioxide emission corresponding to the amount of electricity supplied from each power generation device from the emission information storage unit 721. Furthermore, the calculation unit 715 obtains information indicating the ratio of the amount of electricity supplied from each power generation device from the ratio information storage unit 722.

[0160] Then, the calculation unit 715 calculates the amount of carbon dioxide emissions generated for molding the molded product based on the amount of electricity supplied to the injection molding machine 10 for molding the molded product, the information indicating the amount of carbon dioxide emissions corresponding to the amount of electricity supplied from each power generation device, and the information indicating the ratio of the amount of electricity supplied from each power generation device. The calculated amount of carbon dioxide emissions can be displayed on a log information screen, etc. The log information screen is a screen for displaying actual values ​​and statistical values ​​during molding, etc.

[0161] Figure 6 This is a diagram illustrating an example of a log information screen output by the display control unit 712 according to the present embodiment.

[0162] exist Figure 6The log information screen 1600 shown shows the total number 1611, the number of qualified products 1612, the number of unqualified products 1613, the number of scrapped products 1614, the entry button 1615, the monitoring setting button 1616, the save button 1617, the update button 1618, the statistical overview 1620 and the actual overview 1630.

[0163] The statistics list 1620 shows the statistical information (e.g., average, range, maximum, minimum, standard deviation) of each of the setting columns 1621 to 1627. The contents shown in the setting columns 1621 to 1627 can be set by the staff. In this embodiment, the items shown in the setting columns 1621 to 1627 can be displayed, monitored, and the log information can be saved. In addition, the monitoring in this embodiment means judging whether it is a qualified product based on a predetermined standard.

[0164] The statistical information is information calculated based on actual values ​​(an example of a parameter) obtained each time a molded product is manufactured by injection molding in the injection molding machine 10. For example, in the statistical overview 1620, the average, range, maximum, minimum, and standard deviation calculated for each of the setting columns 1621 to 1627 are included. In addition, this embodiment shows an example of statistical information, and it may be statistical information other than the average, range, maximum, minimum, and standard deviation, such as an integral value. In addition, the items that become the object of calculating the statistical information are not limited to the items set in the setting columns 1621 to 1627, and other items may also be used.

[0165] The calculation unit 715 calculates statistical information including actual values ​​(an example of a parameter) obtained by injection molding in the range shown in the actual list 1630 as calculation targets. Then, the display control unit 712 displays the statistical information calculated by the calculation unit 715 on the statistical list 1620 .

[0166] The "monitoring", "monitoring value" and "range" in the statistical list 1620 are information for determining whether or not the molded product in the setting column is defective.

[0167] The control device 700 does not monitor when the monitoring of the statistical overview 1620 is "off", and monitors when the monitoring of the statistical overview 1620 is "in". In the case of "in", the control device 700 determines whether the actual value measured in the item shown in the setting column meets the criteria shown in the "monitoring value" and "range" (for example, whether the "monitoring value" is included in the "range" as the median). The switching of the monitoring is performed by the monitoring setting button 1616.

[0168] “Failure” in the statistical list 1620 indicates the number of molded products that do not satisfy the criteria shown in “Monitoring value” and “Range”.

[0169] The “cycle time” in the setting column 1621 , the “filling time” in the setting column 1622 , and the “metering time” in the setting column 1623 are items to be set in order to monitor the time required for the cycle, filling, and metering.

[0170] The "VP switching position" in the setting column 1624 is an item set to monitor the position of the screw 330 when switching from the filling process to the pressure holding process (V / P switching position). The "minimum buffer position" in the setting column 1625 is an item set to monitor the position when the screw 330 moves to the front when pressure is applied after the molding material is filled in the mold device 800. The "filling peak pressure" in the setting column 1626 is an item set to monitor the peak value of the pressure when the molding material is filled.

[0171] The "CO2 emission amount" in the setting column 1627 is an item set to monitor the emission amount of carbon dioxide emitted each time a molded product is molded.

[0172] In addition, the setting fields 1621 to 1627 can be changed to items that the staff wants to monitor. The description of the changing method is omitted.

[0173] The actual list 1630 shows the setting information (e.g., setting value) in the items set in the setting columns 1621 to 1627 or the actual values ​​measured by various sensors at each injection. The items set in the setting columns 1621 to 1627 are set as "CH1" to "CH7". In addition, at each injection, as information indicating the injection, the "shot number", the "time" of injection molding, and the "discrimination" of injection molding are associated with each other.

[0174] The entry button 1615 is a button for accepting a selection of whether to save the actual values ​​shown in the actual list 1630 as log information. When the entry button 1615 is pressed (displayed as "data entry ON"), the storage unit 713 saves the information shown in the actual list 1630 (for example, actual values ​​based on various sensors) as log information in the log information storage unit 723.

[0175] That is, in the present embodiment, the amount of carbon dioxide emissions generated each time a molded product is molded can be stored in the log information storage unit 723 as log information.

[0176] The monitoring setting button 1616 is set as a button for accepting whether to monitor according to the monitored items of the statistical list 1620. When the monitoring setting button 1616 is pressed (displayed as "monitor in"), it is monitored whether it is a defective product at each injection, and the monitoring result is included in the log information. When the monitoring setting button 1616 is pressed, the monitoring of each setting column 1621 to 1627 of the statistical list 1620 can be switched to "off" or "in".

[0177] The save button 1617 is set as a button for accepting whether to save the statistical value (for example, average, range, maximum, minimum, standard deviation, etc.) of each of the setting columns 1621 to 1627. When the save button 1617 is pressed, the saving unit 713 saves the statistical value of each of the setting columns 1621 to 1627 and the actual performance value shown in the actual overview 1630 as log information in the log information storage unit 723. In this embodiment, an example of saving statistical values ​​and actual values ​​is described, but it is not limited to saving statistical values ​​and actual values. For example, in the case where a set value is shown in the actual overview 1630, the saving unit 713 can save the set value together. Moreover, even if the set value is not shown in the actual overview 1630, the saving unit 713 can associate the set value with the actual value shown in the actual overview 1630 and save it.

[0178] The update button 1618 is a button for accepting whether to update the statistical list 1620 and the actual list 1630 each time injection molding is completed by the injection molding machine 10. When the update button 1618 is pressed (displayed as "always"), the statistical list 1620 and the actual list 1630 are updated each time injection molding is completed by the injection molding machine 10.

[0179] The total number 1611 indicates the number of molded products molded in the injection molding machine 10. The number of qualified products 1612 indicates the number of molded products determined as qualified products based on "monitoring", "monitoring value" and "range". The number of unqualified products 1613 indicates the number of molded products determined as unqualified products based on "monitoring", "monitoring value" and "range". The number of rejected products 1614 indicates the number of rejected molded products.

[0180] As described above, when a plurality of molded products are produced from molding materials through the injection molding machine 10 (production device), the display control unit 712 of the control device 700 displays the actual values ​​(an example of the detection results) detected by various sensors in the process of producing the molded products on the actual overview 1630 of the display device 760 for each molded product.

[0181] In the actual list 1630, "CH7" corresponds to "CO2 emission amount." That is, in the "CH7" column of the actual list 1630, the calculation result of the emission amount of carbon dioxide calculated by the calculation unit 715 at each injection is displayed as an actual value.

[0182] Thus, the worker 1050 can monitor the amount of carbon dioxide emissions generated each time a molded product is molded.

[0183] Furthermore, when the record button 1615 is pressed, the storage unit 713 stores the information shown in the actual list 1630 (for example, actual values ​​based on various sensors) as log information in the log information storage unit 723, so that the amount of carbon dioxide emissions generated each time a molded product is molded is stored as log information in the log information storage unit 723. Therefore, the amount of carbon dioxide emissions generated when the molded product is molded can be managed for each molded product.

[0184] In the present embodiment, the log information including the emission amount of carbon dioxide is stored in the log information storage unit 723 by being stored by the storage unit 713. The emission amount of carbon dioxide stored in the log information may be displayed on another screen.

[0185] In the present embodiment, the log information screen (an example of the second screen) 1600 is described as a screen that displays the calculation result of the emission of carbon dioxide generated by molding of the molded product based on the injection molding machine 10. However, in the present embodiment, the screen that displays the calculation result of the emission of carbon dioxide is not limited to the log information screen 1600, and any screen may be used as long as the calculation result of the emission of carbon dioxide can be displayed.

[0186] For example, the amount of carbon dioxide emissions may be displayed on the screen in units of batches of molded products, rather than in units of molded products.

[0187] Furthermore, in this embodiment, the carbon dioxide emissions of each molded product calculated by the calculation unit 715 are not limited to the amount of electricity consumed in the injection molding machine 10, but may also include the amount of electricity consumed in external equipment other than the injection molding machine 10 when molding the molded product.

[0188] For example, the acquisition unit 714 of the control device 700 can acquire the amount of power used for temperature adjustment of the mold device 800 from the mold temperature regulator 11 via the communication interface 705. Also, the acquisition unit 714 of the control device 700 can acquire the amount of power used for taking out the molded product from the take-out robot 12 via the communication interface 705. Also, the acquisition unit 714 of the control device 700 can acquire the amount of power required for drying the molded product from the dryer 13 via the communication interface 705.

[0189] Furthermore, the acquisition unit 714 of the control device 700 can acquire, from the pulverizer 15 , the amount of electric power required to pulverize the runner and the like generated each time a molded product is molded.

[0190] Furthermore, when the amount of power consumed by the external device is obtained, the calculation unit 715 can calculate the amount of carbon dioxide emissions corresponding to the amount of power consumed by the external device each time a molded product is molded, based on the amount of power consumed by the external device. When the external device is used in multiple shots, the calculation unit 715 can calculate the amount of carbon dioxide emissions corresponding to the amount of power consumed by the external device by evenly distributing it to each of the multiple shots, or can distribute it to each shot by a predetermined method.

[0191] Furthermore, the storage unit 713 can store the amount of carbon dioxide emissions generated by the use of the external device for each molded product as log information. Furthermore, when power is consumed in the external device during the period when the molded product is not formed, the acquisition unit 714 can acquire the amount of power consumed in the external device, and the storage unit 713 can store the acquired amount of power as log information. Furthermore, the amount of carbon dioxide emissions generated by the use of the external device can be displayed on the screen.

[0192] Figure 7 FIG. 1 is a diagram showing an example of a display screen of power consumption and the like output by the display control unit 712 according to the present embodiment. Figure 7 The power consumption and other display screen shown shows the power consumption for 30 days and the carbon dioxide emissions for 30 days. Figure 7 The power consumption shown indicates the power consumption during operation of the injection molding machine 10 and the power consumption during standby of the injection molding machine 10 .

[0193] Specifically, the motor column shows the power consumption of various motors of the injection molding machine 10 in operation and the power consumption of various motors of the injection molding machine 10 in standby. The heater column shows the total power consumption of external devices (mold temperature controller 11, removal robot 12, dryer 13 and crusher 15) when the injection molding machine 10 is in operation and the total power consumption of external devices when the injection molding machine 10 is in standby.

[0194] Figure 7The CO2 emissions shown are shown in the motor column and the heater column. The motor column shows the carbon dioxide emissions of various motors of the injection molding machine 10. The heater column shows the carbon dioxide emissions of external devices of the injection molding machine 10. The carbon dioxide emissions shown in the motor column and the heater column are set as the sum of the carbon dioxide emissions during the operation of the injection molding machine 10 and the carbon dioxide emissions during the standby of the injection molding machine 10, but it is also possible to separately show the standby and operation as in the case of power consumption.

[0195] In this embodiment, an example is described in which the control device 700 of the injection molding machine 10 calculates the emission of carbon dioxide and saves the emission as log information. However, this embodiment is not limited to an example in which the control device 700 of the injection molding machine 10 functions as a production management device that calculates and manages the emission of carbon dioxide.

[0196] For example, the management device 1100 may have the same structure as the control device 700, and calculate the carbon dioxide emissions of each injection molding machine 10 by receiving information related to the amount of electricity used each time a molded product is molded from the injection molding machine 10, and store the carbon dioxide emissions in a storage medium (not shown). Furthermore, the management device 1100 may display the carbon dioxide emissions. The specific method may be the same as the above method, so the description is omitted.

[0197] In this way, the production management device that calculates and manages the amount of carbon dioxide emissions may be provided in the injection molding machine 10 or may be provided as an external device of the injection molding machine 10 .

[0198] Furthermore, the method is not limited to displaying the calculation result of the carbon dioxide emission amount on the display device 760 of the injection molding machine 10. For example, the control device 700 of the injection molding machine 10 may calculate the carbon dioxide emission amount and send the calculation result of the carbon dioxide emission amount to the mobile communication terminal 1051 or the management device 1100. Thus, the mobile communication terminal 1051 or the management device 1100 may display the calculation result of the carbon dioxide emission amount.

[0199] (Second embodiment)

[0200] In the first embodiment, an example in which a worker inputs information about a ratio into a power generation equipment setting screen or the like is described. However, the above embodiment is not limited to an example in which a worker inputs information about a ratio into a power generation equipment setting screen or the like. Therefore, in the second embodiment, an example in which the server 1305 provides information about power generation equipment to the management device 1100 is described.

[0201] Figure 8 1 is a conceptual diagram showing the relationship between a production company 1000 having production equipment and a power company 1300 supplying power according to the second embodiment. Figure 8 In the conceptual diagram shown in Figure 3 The same structures are assigned the same symbols and their descriptions are omitted.

[0202] exist Figure 8 In the illustrated example, a server 1305A for providing current power information as the power company 1300 is installed in the head office 1301 .

[0203] The server 1305A is connected to the public network 1850. The server 1305 transmits information on power plants owned by the power company 1300 via the public network 1850.

[0204] For example, server 1305A sends emission information indicating the amount of carbon dioxide emissions corresponding to the amount of electricity generated by AA thermal power plant 1302, BB hydroelectric power plant 1303, and CC solar power plant 1304 to an external device (e.g., management device 1100A) connected via public network 1850.

[0205] Furthermore, the server 1305A transmits ratio information indicating the ratio of the amounts of electricity generated by the AA thermal power plant 1302 , the BB hydroelectric power plant 1303 , and the CC solar power plant 1304 to an external device (eg, the management device 1100A) connected via the public network 1850 .

[0206] The server 1305A may transmit information indicating the ratio of the power amount when the ratio of the power amount is changed. For example, when the power generation of the CC solar power plant 1304 changes due to weather changes, the server 1305A may transmit information indicating the ratio of the power amount taking into account the change in power generation.

[0207] exist Figure 8 In the illustrated example, the production company 1000 includes a management device 1100A.

[0208] The management device 1100A receives information from the server 1305A via the public network 1850 .

[0209] For example, when the management device 1100A receives emission information indicating the amount of carbon dioxide emissions corresponding to the amount of electricity generated from the server 1305A for each of the AA thermal power plant 1302 , the BB hydroelectric power plant 1303 , and the CC solar power plant 1304 , the emission information is sent to the injection molding machine 10 .

[0210] The control device 700 of the injection molding machine 10 receives emission information indicating the emission amount of carbon dioxide corresponding to the amount of electric power generated by the power generation equipment from the management device (an example of an information processing device) 1100A via the communication interface (an example of a communication unit) 705. Then, the storage unit 713 stores the received information in the emission amount information storage unit 721.

[0211] After receiving the emission information, the calculation unit 715 switches to calculate the emission amount of carbon dioxide generated by molding of the molded product by the injection molding machine 10 based on the emission information stored in the emission amount information storage unit 721 .

[0212] As another example, when receiving ratio information from the server 1305A, the management device 1100A considers the amount of electric power generated by the solar power generation equipment 1060 set up for self-generation, derives ratio information representing the ratio of the amounts of electric power generated by the power generation equipment including the solar power generation equipment 1060, and sends the derived ratio information to the injection molding machine 10.

[0213] The control device 700 of the injection molding machine 10 receives ratio information indicating the ratio of the amount of electric power generated by each power generation facility from the management device 1100A via the communication interface (an example of a communication unit) 705. The storage unit 713 stores the received ratio information in the ratio information storage unit 722.

[0214] After receiving the ratio information, the calculation unit 715 switches to calculate the emission amount of carbon dioxide generated by molding of the molded product by the injection molding machine 10 based on the ratio information stored in the ratio information storage unit 722 .

[0215] In this embodiment, through the above control, when the ratio of the power generation amount generated by the power generation equipment changes, the carbon dioxide emission amount can be calculated according to the change. Therefore, the calculation accuracy of the carbon dioxide emission amount can be improved.

[0216] Furthermore, the method is not limited to managing any one or more of the above-mentioned emission information and ratio information by the injection molding machine 10. For example, it can also be managed by the management device 1100A. Moreover, the control device 700 can obtain (receive) any one or more of the emission information and ratio information from the management device 1100A at the time of calculating the emission amount of carbon dioxide.

[0217] In this embodiment, the method in which the control device 700 calculates the amount of carbon dioxide emissions based on the information stored in the storage medium 702 is not limited, and the amount of carbon dioxide emissions can also be calculated and managed by an external system. As an external system, a cloud service, a manufacturing execution system, or a quality management system that is installed with emission calculations based on the GHG protocol or PCAF (Partnership for Carbon Accounting Financials), which is an international emission calculation standard, can function as a production management device.

[0218] Furthermore, the injection molding machine 10 calculates the emission of carbon dioxide, but an external system may manage one or more of the emission information and the ratio information. In this case, the control device 700 of the injection molding machine 10 receives one or more of the emission information and the ratio information from the external system when calculating the emission of carbon dioxide.

[0219] Similarly, when the management device 1100A calculates the amount of carbon dioxide emissions, one or more of the emission information and the ratio information may be managed by an external system. In this case, when the management device 1100A calculates the amount of carbon dioxide emissions, it receives one or more of the emission information and the ratio information from the external system.

[0220] <Function>

[0221] In the above embodiment, when the injection molding machine 10 molds a molded product, the production management device such as the control device 700 considers the carbon dioxide emissions generated by power generation of any one or more of the power generation equipment owned by the power company and the power generation equipment set up for self-generation, and calculates the carbon dioxide emissions generated by the production of the product, thereby being able to grasp the status related to the production of the product. That is, the carbon dioxide emissions generated by the molding of the molded product in the injection molding machine 10 can be visualized. Therefore, it is possible to announce efforts to achieve a low-carbon society.

[0222] In the above embodiment, the case where the production device for managing the emission of carbon dioxide is an injection molding machine is described. However, the above embodiment does not limit the production device to be the object of managing the emission of carbon dioxide to an injection molding machine, for example, it can also be applied to an extrusion molding machine or a blow molding machine. Moreover, it is not limited to a device that processes plastics and the like to form a product, and it can also be applied to a device that processes metals and the like to produce a product. That is, regardless of the material such as plastics or metals, as long as it is a production device that can mass-produce products using the material, it can be used for the control shown in the above embodiment.

[0223] The above describes the implementation methods of the production management device and the display device involved in the present invention, but the present invention is not limited to the above implementation methods, etc. Various changes, corrections, replacements, additions, deletions and combinations can be made within the scope described in the technical solution. Of course, these also fall within the technical scope of the present invention.

Claims

1. A production management device, wherein: A control unit is provided, and the control unit is configured to perform the following processing: Acquiring information indicating the amount of carbon dioxide emissions corresponding to the amount of electric power supplied from each of at least one of a power generation facility owned by a power company that has signed a contract for supplying electric power to a production device and a power generation facility installed for self-generation; acquiring information indicating a ratio of the amount of electric power supplied from each of the power generation equipment in order to produce a product by the production device; and The amount of carbon dioxide emissions generated by the production of the product is calculated based on the amount of electricity used to produce the product, the ratio of the amount of electricity supplied from each of the power generation equipment, and the amount of carbon dioxide emissions corresponding to the amount of electricity generated by each of the power generation equipment.

2. The production management device according to claim 1, wherein: The control unit is configured to perform the following processing: obtaining the amount of electric power consumed in external equipment other than the production device used when producing the product; and The amount of electric power consumed in the external device is also used to calculate the amount of carbon dioxide emissions generated by the production of the product.

3. The production management device according to claim 1, wherein: The amount of carbon dioxide emissions corresponding to the amount of electricity generated by each of the power generation facilities is based on one or more of information provided by a company that produces the power generation facilities installed for self-generation and information provided by the power company to each power generation facility owned by the power company.

4. The production management device according to claim 1, wherein: The control unit receives input of information on the ratio of the amounts of electric power supplied from the respective power generation devices, and determines the ratio of the amounts of electric power supplied from the respective power generation devices based on the input information.

5. The production management device according to claim 1, wherein: further comprising a communication unit for communicating with an information processing device provided by the power company, The control unit performs the following processing: receiving, from the information processing device via the communication unit, information indicating an amount of carbon dioxide emissions corresponding to an amount of electric power generated by the power generation equipment provided by the electric power company; and When information indicating the amount of carbon dioxide emissions corresponding to the amount of electric power is received, the process switches to calculating the amount of carbon dioxide emissions generated by production of the product based on the received information.

6. The production management device according to claim 1, wherein: further comprising a communication unit for communicating with an information processing device provided by the power company, The control unit performs the following processing: receiving information indicating a ratio of the amount of electric power generated by each of the power generation facilities owned by the electric power company from the information processing device via the communication unit; and When receiving information indicating the ratio of the amount of electric power, the process switches to calculating the amount of carbon dioxide emissions generated by the production of the product based on the received information.

7. A display device, wherein: A display unit is provided, and the display unit performs the following processing: a first screen for receiving input of information on a ratio of the amount of electric power supplied from each of at least one of the electric power generation facilities owned by the electric power company that has signed a contract for supplying electric power to the production device and the electric power generation facilities installed for self-generation; and The calculation result of the carbon dioxide emissions generated by the production of the product is displayed on the second screen based on the amount of electricity used by the production device to produce the product, information indicating the amount of carbon dioxide emissions corresponding to the amount of electricity generated by each of the power generation equipment, and information indicating the ratio of the electricity received as input from the first screen.

8. A production device, which produces a product, wherein: The production device includes a control unit, and the control unit is configured to perform the following processing: Acquiring information indicating the amount of carbon dioxide emissions corresponding to the amount of electric power supplied from each of at least one of a power generation facility owned by a power company that has signed a contract for supplying electric power to the production device and a power generation facility installed for self-generation; acquiring information indicating a ratio of the amount of electric power supplied from each of the power generation equipment in order to produce a product by the production device; and The amount of carbon dioxide emissions generated by the production of the product is calculated based on the amount of electricity used to produce the product, the ratio of the amount of electricity supplied from each of the power generation equipment, and the amount of carbon dioxide emissions corresponding to the amount of electricity generated by each of the power generation equipment.

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