Information processing device, injection molding system, information processing method and program

Abstract

The information processing device comprises: an acquisition unit that acquires information indicating a power consumption amount when an injection molding machine molds a molded article; and a calculation unit that calculates a power consumption amount per unit physical quantity by dividing the power consumption amount by a predetermined physical quantity. The predetermined physical quantity is a physical quantity related to the amount of a material used for molding the molded article or a physical quantity related to the number of molded articles.

Description

Information processing device, injection molding system, information processing method and program

[0001] The present disclosure relates to an information processing device, an injection molding system, an information processing method, and a program.

[0002] Japanese Patent Application Laid-Open No. 2000-206150 discloses a device for displaying the power consumption of a machine.

[0003] Recently, there has been a demand for better information processing devices, injection molding systems, information processing methods and programs.

[0004] A first aspect of the present disclosure includes an acquisition unit that acquires information indicating the amount of power consumed by an injection molding machine when molding a molded product, and a calculation unit that calculates the amount of power consumed per unit physical quantity by dividing the amount of power consumed by a predetermined physical quantity, wherein the predetermined physical quantity is a physical quantity related to the amount of material used to mold the molded product, or a physical quantity related to the number of molded products.

[0005] A second aspect of the present disclosure is an injection molding system having a control device for an injection molding machine and a management device configured to be able to communicate with the control device, the system including: an acquisition unit that acquires information indicating the amount of power consumed when the injection molding machine molds a molded product; a calculation unit that calculates the amount of power consumed per unit physical quantity by dividing the amount of power consumed by a predetermined physical quantity; and a display control unit that controls a display unit to display the amount of power consumed per unit physical quantity, wherein the predetermined physical quantity is a physical quantity related to the amount of material used to mold the molded product, or a physical quantity related to the number of molded products molded.

[0006] A third aspect of the present disclosure includes an acquisition step in which an acquisition unit acquires information indicating the amount of power consumed when an injection molding machine molds a molded product, and a calculation step in which a calculation unit calculates the amount of power consumed per unit physical quantity by dividing the amount of power consumed by a predetermined physical quantity, wherein the predetermined physical quantity is a physical quantity related to the amount of material used to mold the molded product, or a physical quantity related to the number of molded products.

[0007] A fourth aspect of the present disclosure is a program that causes a computer to execute the information processing method of the third aspect.

[0008] FIG. 1 is a block diagram of an information processing device. FIG. 2 is a schematic diagram showing a display unit that displays information indicating the amount of power consumed per unit volume of resin injected when an injection molding machine molds a molded product. FIG. 3 is a flowchart showing the flow of a power consumption display process performed in the information processing device. FIG. 4 is a schematic diagram showing a display unit that displays information indicating the amount of power consumed per unit mass of resin injected when an injection molding machine molds a molded product. FIG. 5 is a flowchart showing the flow of a power consumption display process performed in the information processing device. FIG. 6 is a schematic diagram showing a display unit that displays information indicating the amount of power consumed per unit number of molded products molded by the injection molding machine. FIG. 7 is a flowchart showing the flow of a power consumption display process performed in the information processing device. FIG. 8 is a block diagram of the information processing device. FIG. 9 is a schematic diagram showing a display unit that displays information indicating the amount of power consumed per unit number of molding shots that have been determined to be good. FIG. 10 is a flowchart showing the flow of a power consumption display process performed in the information processing device. FIG. 11 is a block diagram of the information processing device. FIG. 12 is a schematic diagram showing a display unit displaying information indicating the amount of power consumed per unit number of molded products judged to be good. FIG. 13 is a flowchart showing the flow of a power consumption amount display process performed in an information processing device. FIG. 14 is a block diagram of an injection molding system. FIG. 15 is a schematic diagram showing a display unit displaying information indicating the amount of power consumed per unit volume of resin injected when an injection molding machine molds a molded product. FIG. 16 is a flowchart showing the flow of a power consumption amount display process performed in an information processing device and a management device. FIG. 17 is a schematic diagram showing a display unit displaying information indicating the amount of power consumed per unit mass of resin injected when an injection molding machine molds a molded product. FIG. 18 is a schematic diagram showing a display unit displaying information indicating the amount of power consumed per unit number of molded products molded by the injection molding machine. FIG. 19 is a schematic diagram showing a display unit displaying information indicating the amount of power consumed per unit number of molding shots judged to be good. FIG. 20 is a schematic diagram showing a display unit that displays information indicating the amount of power consumption per unit number of molded products that have been determined to be non-defective.FIG. 21 is a schematic diagram showing a display unit that displays information indicating the amount of power consumed by an injection molding machine per unit volume of resin injected when the injection molding machine molds a molded product.

[0009] Conventionally, the power consumption per shot of an injection molding machine and the time average power consumption of the injection molding machine have been calculated and the calculation results have been displayed on a display unit. However, if the physical quantities, such as the volume and mass, of the resin used in the molded product change, the time average power consumption of the injection molding machine also changes. Therefore, comparing the time average power consumption of molded products that use different volumes and masses of resin does not necessarily provide a useful evaluation of the power consumption of the injection molding machine.

[0010] The technology of the present disclosure makes it possible to obtain the amount of power consumed per unit physical quantity for the physical quantity related to the amount of resin used in molding a molded product and the physical quantity related to the number of molded products, thereby enabling a useful evaluation of the power consumption of an injection molding machine.

[0011] 1 is a block diagram of an information processing device 10. The information processing device 10 may be a control device that controls an injection molding machine 12.

[0012] The information processing device 10 has a calculation unit 14, a storage unit 16, and a display unit 18. The calculation unit 14 is a processor such as a central processing unit (CPU) or a graphics processing unit (GPU). The calculation unit 14 has an acquisition unit 20, a calculation unit 22, and a display control unit 24. The acquisition unit 20, the calculation unit 22, and the display control unit 24 are realized by executing a program stored in the storage unit 16 in the calculation unit 14. At least a portion of the acquisition unit 20, the calculation unit 22, and the display control unit 24 may be realized by an integrated circuit such as an application specific integrated circuit (ASIC) or a field-programmable gate array (FPGA). At least a portion of the acquisition unit 20, the calculation unit 22, and the display control unit 24 may be realized by an electronic circuit including discrete devices.

[0013] The storage unit 16 is a computer-readable, non-transitory, tangible storage medium. The storage unit 16 is composed of a volatile memory (not shown) and a non-volatile memory (not shown). The volatile memory is, for example, a random access memory (RAM). The non-volatile memory is, for example, a read-only memory (ROM), a flash memory, etc. Data, etc., are stored in the volatile memory. Programs, tables, maps, etc., are stored in the non-volatile memory. At least a portion of the storage unit 16 may be provided in the above-mentioned processor, integrated circuit, etc. At least a portion of the storage unit 16 may be installed in a device connected to the information processing device 10 via a network.

[0014] The acquisition unit 20 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product. The amount of power consumed when the injection molding machine 12 molds a molded product indicates, for example, the amount of power consumed by the injection molding machine 12 in the injection process, the pressure holding process, the measurement process, etc.

[0015] The amount of power consumed when the injection molding machine 12 molds a molded product is not limited to the amount of power consumed by the injection molding machine 12 itself, but may also include the amount of power consumed by the information processing device 10. The amount of power consumed when the injection molding machine 12 molds a molded product may also include the amount of power consumed by peripheral devices such as a hopper that supplies resin to the molding machine body and a take-out robot that removes the molded product. The amount of power consumed when the injection molding machine 12 molds a molded product may be the amount of power consumed per shot, the amount of power consumed per fixed time period (e.g., per hour), the amount of power consumed per production schedule, etc.

[0016] The calculation unit 22 calculates the power consumption per unit physical quantity by dividing the power consumption of the injection molding machine 12 by a predetermined physical quantity. In this embodiment, the predetermined physical quantity is the volume of resin injected when the injection molding machine 12 molds a molded product. The predetermined physical quantity may be the volume of resin injected when the injection molding machine 12 molds a molded product minus the volume of the spool, the volume of the runner, and the volume of the gate. In this embodiment, the unit physical quantity refers to unit volume. In this embodiment, the unit volume is 1 [cm^3]. The unit volume may also be another volume.

[0017] The volume of resin injected when the injection molding machine 12 molds a molded product is determined based on the movement amount and screw diameter of the injection molding machine 12. The volume of resin injected when the injection molding machine 12 molds a molded product may be determined based on design data of a mold attached to the injection molding machine 12. The volume of resin injected when the injection molding machine 12 molds a molded product may be determined based on actual measurement data of the mold attached to the injection molding machine 12.

[0018] The display control unit 24 controls the display unit 18 to display information indicating the amount of power consumption per unit volume on the display unit 18 .

[0019] The display unit 18 is, for example, a liquid crystal display, an organic electroluminescence display, etc. The display unit 18 may be provided in a device other than the information processing device 10.

[0020] 2 is a schematic diagram showing the display unit 18 displaying information indicating the amount of power consumed per unit volume of resin injected when the injection molding machine 12 molds a molded product. As shown in FIG. 2, information indicating the amount of power consumed per unit volume for each molded product is displayed on the display unit 18. This allows the amount of power consumed to be compared between molded products with different volumes. This allows for a useful evaluation of the amount of power consumed by the injection molding machine 12.

[0021] Regardless of the molded product, information indicating the amount of power consumption per unit volume may be displayed on the display unit 18.

[0022] [Power Consumption Amount Display Process] FIG. 3 is a flowchart showing the flow of power consumption amount display process performed in the information processing device 10. As shown in FIG.

[0023] In step S1, the acquisition unit 20 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product. Then, the process proceeds to step S2.

[0024] In step S2, the calculation unit 22 calculates the amount of power consumption per unit volume by dividing the amount of power consumption of the injection molding machine 12 by the volume of resin injected when the injection molding machine 12 molds a molded product. Then, the process proceeds to step S3.

[0025] In step S3, the display control unit 24 controls the display unit 18 to display information indicating the amount of power consumption per unit volume of resin on the display unit 18. Thereafter, the power consumption display process ends.

[0026] Second Embodiment In this embodiment, the display unit 18 displays information indicating the amount of power consumed by the injection molding machine 12 per unit mass of resin injected when the injection molding machine 12 molds a molded product.

[0027] [Configuration of Information Processing Device] The configuration of the information processing device 10 will be described with reference to Fig. 1. The configuration of the information processing device 10 of this embodiment is substantially the same as the configuration of the information processing device 10 of the first embodiment, but the processing performed in the calculation unit 14 of this embodiment differs from that of the first embodiment in part.

[0028] The acquisition unit 20 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product.

[0029] The calculation unit 22 calculates the amount of power consumption per unit physical quantity by dividing the amount of power consumption of the injection molding machine 12 by a predetermined physical quantity. In this embodiment, the predetermined physical quantity is the mass of resin injected when the injection molding machine 12 molds a molded product. The predetermined physical quantity may be the mass of resin injected when the injection molding machine 12 molds a molded product minus the mass of the spool, the mass of the runner, and the mass of the gate. In this embodiment, the unit physical quantity refers to unit mass. In this embodiment, the unit mass is 1 g. The unit mass may also be another mass.

[0030] The mass of the resin injected when the injection molding machine 12 molds the molded product is calculated based on the volume of the resin injected when the injection molding machine 12 molds the molded product and the density of the resin. Information on the density of the resin may be stored in advance in the storage unit 16. Information on the density of the resin may be input into the information processing device 10 by a user.

[0031] The mass of resin injected when the injection molding machine 12 molds a molded product may be determined based on design data of a mold attached to the injection molding machine 12. The mass of resin injected when the injection molding machine 12 molds a molded product may be determined based on actual measurement data of the mold attached to the injection molding machine 12.

[0032] The display control unit 24 controls the display unit 18 to cause the display unit 18 to display information indicating the amount of power consumption per unit mass.

[0033] 4 is a schematic diagram showing the display unit 18 displaying information indicating the amount of power consumed per unit mass of resin injected by the injection molding machine 12 when molding a molded product. As shown in FIG. 4, information indicating the amount of power consumed per unit mass for each molded product is displayed on the display unit 18. This allows the amount of power consumed by molded products of different masses to be compared. This allows for a useful evaluation of the amount of power consumed by the injection molding machine 12.

[0034] Regardless of the molded product, information indicating the amount of power consumption per unit mass may be displayed on the display unit 18.

[0035] [Power Consumption Amount Display Process] FIG. 5 is a flowchart showing the flow of power consumption amount display process performed in the information processing device 10. As shown in FIG.

[0036] In step S11, the acquisition unit 20 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product. Then, the process proceeds to step S12.

[0037] In step S12, the calculation unit 22 calculates the amount of power consumption per unit mass by dividing the amount of power consumption of the injection molding machine 12 by the mass of resin injected when the injection molding machine 12 molds a molded product. Then, the process proceeds to step S13.

[0038] In step S13, the display control unit 24 controls the display unit 18 to display information indicating the amount of power consumption per unit mass of resin on the display unit 18. Thereafter, the power consumption display process ends.

[0039] Third Embodiment In this embodiment, the display unit 18 displays information indicating the amount of power consumed by the injection molding machine 12 per unit number of molded products molded by the injection molding machine 12 .

[0040] [Configuration of Information Processing Device] The configuration of the information processing device 10 will be described with reference to Fig. 1. The configuration of the information processing device 10 of this embodiment is substantially the same as the configuration of the information processing device 10 of the first embodiment, but the processing performed in the calculation unit 14 of this embodiment differs from that of the first embodiment in part.

[0041] The acquisition unit 20 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product.

[0042] The calculation unit 22 calculates the amount of power consumption per unit physical quantity by dividing the amount of power consumption of the injection molding machine 12 by a predetermined physical quantity. In this embodiment, the predetermined physical quantity is the number of molded products molded by the injection molding machine 12. In this embodiment, the unit physical quantity refers to the number of units. In this embodiment, the number of units is 1 [piece]. The number of units may be another number.

[0043] The display control unit 24 controls the display unit 18 to display information indicating the amount of power consumption per unit number on the display unit 18 .

[0044] 6 is a schematic diagram showing the display unit 18 displaying information indicating the amount of power consumed per unit number of molded products molded by the injection molding machine 12. As shown in FIG. 6, information indicating the amount of power consumed per unit number of each molded product is displayed on the display unit 18. This allows the amount of power consumed to be compared between molded products molded in different numbers. This allows for a useful evaluation of the amount of power consumed by the injection molding machine 12.

[0045] Regardless of the molded product, information indicating the amount of power consumption per unit may be displayed on the display unit 18.

[0046] [Power Consumption Amount Display Process] FIG. 7 is a flowchart showing the flow of power consumption amount display process performed in the information processing device 10. As shown in FIG.

[0047] In step S21, the acquisition unit 20 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product. Then, the process proceeds to step S22.

[0048] In step S22, the calculation unit 22 calculates the amount of power consumption per unit number by dividing the amount of power consumption of the injection molding machine 12 by the number of molded products molded by the injection molding machine 12. Then, the process proceeds to step S23.

[0049] In step S23, the display control unit 24 controls the display unit 18 to display information indicating the amount of power consumption per unit number of molded products on the display unit 18. Thereafter, the power consumption display process ends.

[0050] Fourth Embodiment In this embodiment, the display unit 18 displays information indicating the amount of power consumed by the injection molding machine 12 per unit number of molding shots that are determined to be good.

[0051] 8 is a block diagram of the information processing device 10. The information processing device 10 of this embodiment includes a calculation unit 14, a storage unit 16, and a display unit 18, similar to the information processing device 10 of the first embodiment.

[0052] The calculation unit 14 includes an acquisition unit 20 , a molding shot determination unit 26 , a calculation unit 22 , and a display control unit 24 .

[0053] The acquisition unit 20 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product.

[0054] The molding shot determination unit 26 determines whether or not each molding shot of the injection molding machine 12 is good. Whether or not a molding shot is good is determined based on, for example, the volume of the injected resin, the temperature of the injected resin, etc.

[0055] The calculation unit 22 calculates the power consumption per unit physical quantity by dividing the power consumption of the injection molding machine 12 by a predetermined physical quantity. In this embodiment, the predetermined physical quantity is the number of molding shots that are determined to be good. In this embodiment, the unit physical quantity refers to the number of unit shots. In this embodiment, the number of unit shots is 1 [shot]. The number of unit shots may be another number of shots.

[0056] The display control unit 24 controls the display unit 18 to display information indicating the amount of power consumption per unit number of shots on the display unit 18 .

[0057] 9 is a schematic diagram showing the display unit 18 displaying information indicating the amount of power consumed per unit number of molding shots that have been determined to be good. As shown in FIG. 9, information indicating the amount of power consumed per unit number of shots for each molded product is displayed on the display unit 18.

[0058] For example, suppose the probability that the molding shot in molding product P will be judged to be good is 100%, and the probability that the molding shot in molding product Q will be judged to be good is 90%. In this case, even if the amounts of power consumed per unit volume of resin and per unit mass of resin are the same for molded products P and Q, the power usage efficiency in molding product P is higher than the power usage efficiency in molding product Q.

[0059] In this embodiment, the power consumption per unit number of molding shots that are judged to be good is calculated, so the power consumption reflects the yield, making it possible to compare the power consumption of molded products with different yields.

[0060] It should be noted that information indicating the amount of power consumed per unit number of shots may be displayed on the display unit 18 regardless of the molded product.

[0061] [Power Consumption Amount Display Process] FIG. 10 is a flowchart showing the flow of power consumption amount display process performed in the information processing device 10. As shown in FIG.

[0062] In step S31, the acquisition unit 20 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product. Then, the process proceeds to step S32.

[0063] In step S32, the calculation unit 22 calculates the amount of power consumption per unit number of shots by dividing the amount of power consumption of the injection molding machine 12 by the number of molding shots that were determined to be good. Then, the process proceeds to step S33.

[0064] In step S33, the display control unit 24 controls the display unit 18 to display information indicating the amount of power consumed per unit number of molding shots that have been determined to be good on the display unit 18. Thereafter, the power consumption amount display process ends.

[0065] Fifth Embodiment In this embodiment, the display unit 18 displays information indicating the amount of power consumption of the injection molding machine 12 per unit number of molded products that have been determined to be non-defective.

[0066] 11 is a block diagram of the information processing device 10. The information processing device 10 of this embodiment includes a calculation unit 14, a storage unit 16, and a display unit 18, similar to the information processing device 10 of the first embodiment.

[0067] The calculation unit 14 includes an acquisition unit 20 , a non-defective product determination unit 28 , a calculation unit 22 , and a display control unit 24 .

[0068] The acquisition unit 20 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product.

[0069] The non-defective product determination unit 28 determines whether each molded product from the injection molding machine 12 is a non-defective product. Whether a molded product is a non-defective product is determined, for example, based on an image of the molded product taken by a camera (not shown). Whether a molded product is a non-defective product may be determined manually, and the number of molded products determined to be non-defective may be input to the information processing device 10.

[0070] The calculation unit 22 calculates the amount of power consumption per unit physical quantity by dividing the amount of power consumption of the injection molding machine 12 by a predetermined physical quantity. In this embodiment, the predetermined physical quantity is the number of molded products determined to be non-defective. In this embodiment, the unit physical quantity refers to the number of units. In this embodiment, the number of units is 1 [piece]. The number of units may be another number.

[0071] The display control unit 24 controls the display unit 18 to display information indicating the amount of power consumption per unit number on the display unit 18 .

[0072] 12 is a schematic diagram showing the display unit 18 displaying information indicating the amount of power consumption per unit number of molded products that have been determined to be non-defective. As shown in FIG. 12, information indicating the amount of power consumption per unit number of each molded product is displayed on the display unit 18.

[0073] For example, suppose that the probability that molded product R will be judged as a good product when molded is 100%, and the probability that molded product S will be judged as a good product when molded is 90%. In this case, even if molded products R and S have the same amount of power consumption per unit volume of resin and the same amount of power consumption per unit mass of resin, the power usage efficiency in molding molded product R is higher than the power usage efficiency in molding molded product S.

[0074] In this embodiment, the power consumption per unit number of molded products judged to be non-defective is calculated, so that the power consumption reflecting the yield can be obtained. Therefore, the power consumption of molded products with different yields can be compared. This allows for a useful evaluation of the power consumption of the injection molding machine 12.

[0075] Regardless of the molded product, information indicating the amount of power consumption per unit number of molded products that have been determined to be non-defective may be displayed on the display unit 18.

[0076] [Power Consumption Amount Display Process] FIG. 13 is a flowchart showing the flow of power consumption amount display process performed in the information processing device 10. As shown in FIG.

[0077] In step S41, the acquisition unit 20 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product. Then, the process proceeds to step S42.

[0078] In step S42, the calculation unit 22 calculates the amount of power consumption per unit number of molded products judged to be non-defective by dividing the amount of power consumption of the injection molding machine 12 by the number of molded products judged to be non-defective. Then, the process proceeds to step S43.

[0079] In step S43, the display control unit 24 controls the display unit 18 to display information indicating the amount of power consumption per unit number of molded products that have been determined to be non-defective on the display unit 18. Thereafter, the power consumption display process ends.

[0080] Sixth Embodiment In the first to fifth embodiments, the display control unit 24 and the display unit 18 are provided in the information processing device 10. In this embodiment, the display control unit 40 and the display unit 38 are provided in the management device 32.

[0081] 14 is a block diagram of an injection molding system 30. The injection molding system 30 has an injection molding machine 12, an information processing device 10, and a management device 32. The information processing device 10 may be a control device that controls the injection molding machine 12. The management device 32 may be a device that manages a plurality of injection molding machines 12.

[0082] [Configuration of Information Processing Device] The information processing device 10 of this embodiment is a block diagram of the information processing device 10. The information processing device 10 of this embodiment includes a calculation unit 14 and a storage unit 16, similar to the information processing device 10 of the first embodiment.

[0083] The acquisition unit 20 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product.

[0084] The calculation unit 22 calculates the amount of power consumption per unit physical quantity by dividing the amount of power consumption of the injection molding machine 12 by a predetermined physical quantity. In this embodiment, the predetermined physical quantity is the volume of resin injected when the injection molding machine 12 molds a molded product.

[0085] [Configuration of Management Device] The management device 32 has a calculation unit 34, a storage unit 36, and a display unit 38. The calculation unit 34 is a processor such as a CPU or a GPU. The calculation unit 34 has a display control unit 40. The display control unit 40 is realized by the calculation unit 34 executing a program stored in the storage unit 36. At least a part of the display control unit 40 may be realized by an integrated circuit such as an ASIC or an FPGA. The display control unit 40 may be realized by an electronic circuit including discrete devices.

[0086] The storage unit 36 ​​is a computer-readable, non-transitory, tangible storage medium. The storage unit 36 ​​is composed of a volatile memory (not shown) and a non-volatile memory (not shown). The volatile memory is, for example, a RAM. The non-volatile memory is, for example, a ROM, a flash memory, etc. Data, etc., are stored in the volatile memory. Programs, tables, maps, etc., are stored in the non-volatile memory, for example. At least a portion of the storage unit 36 ​​may be provided in the above-mentioned processor, integrated circuit, etc. At least a portion of the storage unit 36 ​​may be installed in a device connected to the information processing device 10 via a network.

[0087] The display control unit 40 controls the display unit 38 to display information indicating the amount of power consumption per unit volume of resin injected when the injection molding machine 12 molds a molded product.

[0088] The display unit 38 is, for example, a liquid crystal display, an organic electroluminescence display, or the like.

[0089] Fig. 15 is a schematic diagram showing a display unit 38 that displays information indicating the amount of power consumption per unit volume of resin injected when the injection molding machine 12 molds a molded product. As shown in Fig. 15, information indicating the amount of power consumption per unit volume for each injection molding machine 12 is displayed on the display unit 38. Information indicating the amount of power consumption per unit volume for each molded product may also be displayed on the display unit 38.

[0090] [Power Consumption Amount Display Process] FIG. 16 is a flowchart showing the flow of the power consumption amount display process performed in the information processing device 10 and the management device 32.

[0091] In step S51, the acquisition unit 20 of the information processing device 10 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product. Then, the process proceeds to step S52.

[0092] In step S52, the calculation unit 22 of the information processing device 10 calculates the amount of power consumption per unit volume by dividing the amount of power consumption of the injection molding machine 12 by the volume of resin injected when the injection molding machine 12 molds a molded product. Then, the process proceeds to step S53.

[0093] In step S53, the display control unit 40 of the management device 32 controls the display unit 38 to display information indicating the amount of power consumption per unit volume of resin on the display unit 38. Thereafter, the power consumption display process ends.

[0094] In this embodiment, the display unit 38 displays information indicating the amount of power consumed by the injection molding machine 12 per unit volume of resin injected when the injection molding machine 12 molds a molded product.

[0095] Alternatively, the display unit 38 may display information indicating the amount of power consumed by the injection molding machine 12 per unit mass of resin injected when the injection molding machine 12 molds a molded product.

[0096] Fig. 17 is a schematic diagram showing a display unit 38 that displays information indicating the amount of power consumption per unit mass of resin injected when the injection molding machine 12 molds a molded product. As shown in Fig. 17, information indicating the amount of power consumption per unit mass of each injection molding machine 12 is displayed on the display unit 38. Information indicating the amount of power consumption per unit mass of each molded product may also be displayed on the display unit 38.

[0097] Furthermore, information indicating the amount of power consumption of the injection molding machine 12 per unit number of molded products molded by the injection molding machine 12 may be displayed on the display unit 38 .

[0098] Fig. 18 is a schematic diagram showing a display unit 38 that displays information indicating the amount of power consumption per unit number of molded products molded by the injection molding machine 12. As shown in Fig. 18, information indicating the amount of power consumption per unit number for each injection molding machine 12 is displayed on the display unit 38. Information indicating the amount of power consumption per unit number for each molded product may also be displayed on the display unit 38.

[0099] Furthermore, information indicating the amount of power consumption of the injection molding machine 12 per unit number of molding shots that are determined to be good may be displayed on the display unit 38 .

[0100] Fig. 19 is a schematic diagram showing a display unit 38 that displays information showing the amount of power consumed per unit number of molding shots that have been determined to be good. As shown in Fig. 19, information showing the amount of power consumed per unit number of shots for each injection molding machine 12 is displayed on the display unit 38. Information showing the amount of power consumed per unit number of shots for each molded product may be displayed on the display unit 38 regardless of the injection molding machine 12.

[0101] Furthermore, information indicating the amount of power consumption of the injection molding machine 12 per unit number of molded products that have been determined to be non-defective may be displayed on the display unit 38 .

[0102] Fig. 20 is a schematic diagram showing a display unit 38 that displays information indicating the amount of power consumption per unit number of molded products that have been determined to be non-defective. As shown in Fig. 20, information indicating the amount of power consumption per unit number for each injection molding machine 12 is displayed on the display unit 38. Information indicating the amount of power consumption per unit number for each molded product may also be displayed on the display unit 38.

[0103] In this embodiment, the acquisition unit 20 of the information processing device 10 acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product. Alternatively, the management device 32 may have an acquisition unit (not shown), which acquires information indicating the amount of power consumed when the injection molding machine 12 molds a molded product.

[0104] In this embodiment, the calculation unit 22 of the information processing device 10 calculates the amount of power consumption per unit volume of resin injected when the injection molding machine 12 molds a molded product. Alternatively, the management device 32 may have a calculation unit (not shown), which calculates the amount of power consumption per unit volume of resin injected when the injection molding machine 12 molds a molded product.

[0105] In this embodiment, the display control unit 40 of the management device 32 controls the display unit 38 of the management device 32 to display information indicating the amount of power consumption per unit volume on the display unit 38. Alternatively, a display control unit (not shown) of the information processing device 10 may control the display unit 38 of the management device 32 to display information indicating the amount of power consumption per unit volume on the display unit 38.

[0106] Seventh Embodiment In the first to sixth embodiments, information indicating the amount of power consumption per unit physical quantity is displayed in a table on the display unit 18 or the display unit 38. In contrast, in this embodiment, information indicating the amount of power consumption per unit physical quantity is displayed on the display unit 38 in the form of a timeline chart.

[0107] Figure 21 is a schematic diagram showing the display unit 18 displaying information indicating the amount of power consumed by the injection molding machine 12 per unit volume of resin injected when the injection molding machine 12 molds a molded product. As shown in Figure 21, the information indicating the amount of power consumed per unit volume for each injection molding machine 12 is displayed in the form of a timeline chart on the display unit 38. In Figure 21, the denser the dots, the greater the amount of power consumed. By looking at the display on the display unit 18 shown in Figure 21, the user can grasp at a glance the changes over time in the amount of power consumed by multiple injection molding machines 12.

[0108] Information indicating the amount of power consumption per unit volume of each molded product may be displayed on the display unit 38 .

[0109] Information indicating the amount of power consumption of the injection molding machine 12 per unit mass of resin injected when the injection molding machine 12 molds a molded product may be displayed on the display unit 38 in the form of a timeline chart.

[0110] Furthermore, information indicating the amount of power consumption of the injection molding machine 12 per unit number of molded products molded by the injection molding machine 12 may be displayed on the display unit 38 in the form of a timeline chart.

[0111] Furthermore, information indicating the amount of power consumption of the injection molding machine 12 per unit number of molding shots that are determined to be good may be displayed on the display unit 38 in the form of a timeline chart.

[0112] Furthermore, information indicating the amount of power consumption of the injection molding machine 12 per unit number of molded products that have been determined to be non-defective may be displayed on the display unit 38 in the form of a timeline chart.

[0113] The information processing device 10, injection molding system 30, information processing method, and program disclosed herein can calculate the amount of power consumed per unit physical quantity when the injection molding machine 12 molds a molded product, thereby enabling a useful evaluation of the amount of power consumed by the injection molding machine 12.

[0114] The following additional notes are further disclosed regarding the above embodiment.

[0115] (Note 1) An information processing device (10) includes an acquisition unit (20) that acquires information indicating the amount of power consumed when an injection molding machine (12) molds a molded product, and a calculation unit (22) that calculates the amount of power consumed per unit physical quantity by dividing the amount of power consumed by a predetermined physical quantity, the predetermined physical quantity being a physical quantity related to the amount of material used to mold the molded product, or a physical quantity related to the number of molded products.

[0116] (Supplementary Note 2) The information processing device according to Supplementary Note 1 may further include a display control unit (24) that controls a display unit (18) to display information indicating the amount of power consumption per unit physical quantity.

[0117] (Supplementary Note 3) In the information processing device according to Supplementary Note 2, the display control unit may perform control to cause the display unit to display information indicating the amount of power consumption per unit physical quantity in the form of a timeline chart.

[0118] (Supplementary Note 4) In the information processing device according to any one of Supplementary Notes 1 to 3, the predetermined physical quantity may be a volume of resin injected when the injection molding machine molds the molded product.

[0119] (Supplementary Note 5) In the information processing device described in any one of Supplementary Notes 1 to 3, the predetermined physical quantity may be a volume obtained by subtracting the volume of a spool, the volume of a runner, and the volume of a gate from the volume of resin injected when the injection molding machine molds the molded product.

[0120] (Appendix 6) In the information processing device described in Appendix 4 or 5, the volume of the resin injected when the injection molding machine molds the molded product may be calculated based on the amount of movement of the screw and the diameter of the screw, or may be calculated based on design data of the mold, or may be calculated based on actual measurement data of the mold.

[0121] (Supplementary Note 7) In the information processing device according to any one of Supplementary Notes 1 to 3, the predetermined physical quantity may be a mass of resin injected when the injection molding machine molds the molded product.

[0122] (Appendix 8) In the information processing device described in any one of Appendices 1 to 3, the predetermined physical quantity may be a mass obtained by subtracting the mass of a spool, the mass of a runner, and the mass of a gate from the mass of resin injected when the injection molding machine molds the molded product.

[0123] (Appendix 9) In the information processing device described in Appendix 7 or 8, the mass of the resin injected when the injection molding machine molds the molded product may be calculated based on the volume of the resin injected when the injection molding machine molds the molded product and the density of the resin, or may be calculated based on design data of the mold, or may be calculated based on actual measurement data of the mold.

[0124] (Supplementary Note 10) In the information processing device according to any one of Supplementary Notes 1 to 3, the predetermined physical quantity may be the number of the molded products molded by the injection molding machine.

[0125] (Appendix 11) In the information processing device described in any one of Appendices 1 to 3, the predetermined physical quantity may be the number of molding shots that are judged to be good by a molding shot judgment unit (26) that judges whether the molding shot is good or not for each molding shot.

[0126] (Supplementary Note 12) In the information processing device described in any one of Supplementary Notes 1 to 3, the predetermined physical quantity may be the number of molded articles that have been determined to be good by a good product determination unit (28) that determines whether each molded article is good or not.

[0127] (Supplementary Note 13) An injection molding system (30) having a control device for an injection molding machine and a management device (32) that is capable of communicating with the control device, the injection molding system comprising: an acquisition unit that acquires information indicating the amount of power consumed when the injection molding machine molds a molded product; a calculation unit that calculates the amount of power consumed per unit physical quantity by dividing the amount of power consumed by a predetermined physical quantity; and a display control unit that controls a display unit to display the amount of power consumed per unit physical quantity, wherein the predetermined physical quantity is a physical quantity related to the amount of material used to mold the molded product or a physical quantity related to the number of molded products.

[0128] (Supplementary Note 14) The information processing method includes an acquisition step in which an acquisition unit acquires information indicating the amount of power consumed when an injection molding machine molds a molded product, and a calculation step in which a calculation unit calculates the amount of power consumed per unit physical quantity by dividing the amount of power consumed by a predetermined physical quantity, wherein the predetermined physical quantity is a physical quantity related to the amount of material used to mold the molded product, or a physical quantity related to the number of molded products.

[0129] (Supplementary Note 15) A program causes a computer to execute the information processing method described in Supplementary Note 14.

[0130] Although the present disclosure has been described in detail, the present disclosure is not limited to the individual embodiments described above. Various additions, substitutions, modifications, partial deletions, etc. are possible in these embodiments without departing from the gist of the present disclosure or the spirit of the present disclosure derived from the content of the claims and their equivalents. These embodiments can also be implemented in combination. For example, in the above-described embodiments, the order of each operation and the order of each process are shown as examples and are not limited to these. The same applies when numerical values ​​or mathematical expressions are used in the description of the above-described embodiments.

[0131] REFERENCE SIGNS LIST 10... Information processing device 12... Injection molding machine 18... Display unit 20... Acquisition unit 22... Calculation unit 24... Display control unit 26... Molding shot determination unit 28... Non-defective product determination unit 30... Injection molding system 32... Management device

Claims

1. An information processing device comprising: an acquisition unit that acquires information indicating the amount of power consumed when an injection molding machine molds a molded product; and a calculation unit that calculates the amount of power consumed per unit physical quantity by dividing the amount of power consumed by a predetermined physical quantity, wherein the predetermined physical quantity is a physical quantity related to the amount of material used to mold the molded product, or a physical quantity related to the number of molded products.

2. An information processing device according to claim 1, further comprising a display control unit that controls a display unit to display information indicating the amount of power consumption per unit physical quantity.

3. An information processing device according to claim 2, wherein the display control unit controls the display unit to display information indicating the amount of power consumption per unit physical quantity in the form of a timeline chart.

4. An information processing device according to any one of claims 1 to 3, wherein the predetermined physical quantity is a volume of resin injected when the injection molding machine molds the molded product.

5. An information processing device according to any one of claims 1 to 3, wherein the predetermined physical quantity is a volume obtained by subtracting the volume of a spool, the volume of a runner, and the volume of a gate from the volume of the resin injected when the injection molding machine molds the molded product.

6. An information processing device according to claim 4 or 5, wherein the volume of the resin injected when the injection molding machine molds the molded product is calculated based on the amount of movement of the screw and the diameter of the screw, or is calculated based on design data of the mold, or is calculated based on actual measurement data of the mold.

7. An information processing device according to any one of claims 1 to 3, wherein the predetermined physical quantity is a mass of resin injected when the injection molding machine molds the molded product.

8. An information processing device according to any one of claims 1 to 3, wherein the predetermined physical quantity is a mass obtained by subtracting the mass of a spool, the mass of a runner, and the mass of a gate from the mass of the resin injected when the injection molding machine molds the molded product.

9. An information processing device according to claim 7 or 8, wherein the mass of the resin injected when the injection molding machine molds the molded product is calculated based on the volume of the resin injected when the injection molding machine molds the molded product and the density of the resin, or is calculated based on design data of a mold, or is calculated based on actual measurement data of the mold.

10. An information processing device according to any one of claims 1 to 3, wherein the predetermined physical quantity is the number of molded products molded by the injection molding machine.

11. An information processing device according to any one of claims 1 to 3, wherein the specified physical quantity is the number of molding shots that are judged as good by a molding shot judgment unit that judges whether or not the molding shot is good for each molding shot.

12. An information processing device according to any one of claims 1 to 3, wherein the predetermined physical quantity is the number of molded products that have been determined to be good by a quality determination unit that determines whether each molded product is good or not.

13. An injection molding system having a control device for an injection molding machine and a management device configured to be able to communicate with the control device, comprising: an acquisition unit that acquires information indicating the amount of power consumed when the injection molding machine molds a molded product; a calculation unit that calculates the amount of power consumed per unit physical quantity by dividing the amount of power consumed by a predetermined physical quantity; and a display control unit that controls a display unit to display the amount of power consumed per unit physical quantity, wherein the predetermined physical quantity is a physical quantity related to the amount of material used to mold the molded product, or a physical quantity related to the number of molded products molded.

14. An information processing method comprising: an acquisition step in which an acquisition unit acquires information indicating the amount of power consumed when an injection molding machine molds a molded product; and a calculation step in which a calculation unit calculates the amount of power consumed per unit physical quantity by dividing the amount of power consumed by a predetermined physical quantity, wherein the predetermined physical quantity is a physical quantity related to the amount of material used to mold the molded product, or a physical quantity related to the number of molded products molded.

15. A program for causing a computer to execute the information processing method according to claim 14.

Images