Injection molding machine management system

Abstract

To provide an injection molding machine management system that makes it easy to grasp a total time of each operating state of an injection molding machine during a predetermined period.SOLUTION: An injection molding machine management system includes a display part that displays operating time information which is information that is aggregated information regarding operating data of a factory or production line equipped with an injection molding machine for a predetermined period. The display part displays two or more consecutive pieces of information among: first information that is information on planned stopping time of the injection molding machine as operating time information; second information that is information regarding setup time of the injection molding machine or information regarding an abnormal stop time of the injection molding machine; third information that is time information regarding performance loss of the injection molding machine; fourth information that is time information regarding defect loss of the injection molding machine; and fifth information that is information on value operating hour of the injection molding machine, in a strip shape with a length direction aligned.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to an injection molding machine management system.

Background Art

[0002] Patent Document 1 discloses a management support system that displays the operating states of a plurality of machines in a strip along a time series. With this management support system, it is possible to identify machines that are frequently stopped due to abnormalities.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When displaying each operating state of an injection molding machine in a strip along a time series, it is difficult to grasp the total time of each operating state of the injection molding machine in a predetermined period. Therefore, there is a problem that it is difficult to grasp the productivity of a factory or production line having an injection molding machine.

Means for Solving the Problems

[0005] According to a first aspect of the present disclosure, an injection molding machine management system is provided. This injection molding machine management system includes a display unit that displays operation time information, which is information obtained by aggregating information on operation data of a factory or production line equipped with an injection molding machine for a predetermined period. The aforementioned operating time information includes information regarding the operating data of the injection molding machine when the injection molding machine produced a specific molded item.The display unit displays two or more consecutive pieces of information, aligned in the length direction of time, as operating time information: first information, which is information regarding the planned downtime of the injection molding machine; second information, which is information regarding the setup time of the injection molding machine or information regarding the abnormal downtime of the injection molding machine; third information, which is time information regarding the performance loss of the injection molding machine; fourth information, which is time information regarding the defect loss of the injection molding machine; and fifth information, which is information regarding the value operating time of the injection molding machine. The first information includes information regarding the time during which the injection molding machine produced molded items other than the specific molded item. .

[0006] According to a second embodiment of the present disclosure, an injection molding machine management system is provided. This injection molding machine management system includes a display unit that displays information aggregated over a predetermined period of time regarding the operation data of an injection molding unit comprising an injection molding machine and peripheral equipment for the injection molding machine, the display unit displays information regarding the planned downtime of the injection molding unit, information regarding the setup time of the injection molding machine or information regarding the abnormal downtime of the injection molding machine, time information regarding the performance loss of the injection molding machine, time information regarding the defect loss of the injection molding machine, information regarding the value operating time of the injection molding machine, information regarding the setup time of the peripheral equipment or information regarding the abnormal downtime of the peripheral equipment, time information regarding the performance loss of the peripheral equipment, time information regarding the defect loss of the peripheral equipment, and information regarding the value operating time of the peripheral equipment, all aligned in the length direction of time in a strip. [Brief explanation of the drawing]

[0007] [Figure 1] An explanatory diagram showing the schematic configuration of the injection molding machine management system in the first embodiment. [Figure 2] A diagram showing an example of a management screen generated by the output unit in the first embodiment. [Figure 3] A diagram showing an example of a management screen generated by the output unit in the second embodiment. [Figure 4] A diagram showing an example of a management screen generated by the output unit in the second embodiment. [Figure 5]A diagram showing an example of a management screen generated by the output unit in the third embodiment. [Figure 6] An explanatory diagram showing the schematic configuration of the injection molding machine management system in the fourth embodiment. [Figure 7] A diagram showing an example of a management screen generated by the output unit in the fourth embodiment. [Figure 8] A diagram showing an example of a management screen generated by the output unit in the fifth embodiment. [Modes for carrying out the invention]

[0008] A. First Embodiment: Figure 1 is an explanatory diagram showing the schematic configuration of the injection molding machine management system 10 in the first embodiment. The injection molding machine management system 10 comprises a display unit 450 and a management device 500. The management device 500 is connected to a plurality of injection molding machines 110, 120, and 130. The management device 500 is communicatively connected to the first injection molding machine 110, the second injection molding machine 120, and the third injection molding machine 130. The management device 500 is configured to communicate with these devices via a network NT. The network NT may be, for example, a LAN, a WAN, or the Internet. The management device 500 is also called a server.

[0009] The first injection molding machine 110 comprises a first control unit 111 and an injection device and a mold clamping device, respectively (not shown). A mold having a cavity is mounted on the mold clamping device. The mold may be made of metal, ceramic, or resin. The first injection molding machine 110 may also be connected to a resin material dryer for drying the resin material, a removal machine for removing the molded product from the first injection molding machine 110, and an inspection machine for inspecting the molded product. These devices constitute a production line for molded products.

[0010] The first control unit 111 is comprised of a computer comprising one or more processors, a storage device, and an input / output interface for inputting and outputting signals to and from the outside.

[0011] The first control unit 111 controls each part of the first injection molding machine 110 to perform injection molding and form a molded product. More specifically, the first control unit 111 controls the mold clamping device to clamp the mold and controls the injection device to plasticize the material and inject it into the mold, thereby forming a molded product having a shape corresponding to the shape of the cavity provided in the mold.

[0012] The first control unit 111 transmits information regarding the operation data of the first injection molding machine 110 to the management device 500. The information regarding the operation data includes the operation history of the first injection molding machine 110, setup work history, abnormal stop history, the names of the molded items produced, the number of molded products produced during a predetermined period, and the number of defective molded products produced during a predetermined period. The operation history is, for example, the start time and end time of operation of the first injection molding machine 110. The setup work history is, for example, the time when setup work was started and the time when setup work was completed in the first injection molding machine 110. The abnormal stop history is, for example, the time when an abnormal stop alarm was issued from the first injection molding machine 110 and the time when the first injection molding machine 110 recovered from the abnormal stop. The first injection molding machine 110 may stop abnormally, for example, if the extraction machine fails to extract the molded product from the mold, if it runs out of material, or if the safety door is not closed.

[0013] The second injection molding machine 120 is equipped with a second control unit 121. The third injection molding machine 130 is equipped with a third control unit 131. The second injection molding machine 120 and the third injection molding machine 130 have the same configuration as the first injection molding machine 110. Also, the second control unit 121 and the third control unit 131 have the same configuration as the first control unit 111. Therefore, a detailed explanation of these injection molding machines and control units will be omitted. In the following, when referring to each injection molding machine 110, 120, and 130 without distinction, they will simply be referred to as injection molding machine 100. Note that the control device 500 may be connected to one injection molding machine 100, two injection molding machines 100, or four or more injection molding machines 100, not limited to three injection molding machines 100.

[0014] The management device 500 is composed of a computer including a processing unit 501 and a storage unit 502. The processing unit 501 includes one or more processors and a main memory device. The storage unit 502 is composed of an auxiliary storage device such as a hard disk drive.

[0015] The processing unit 501 includes an information acquisition unit 510, an arithmetic unit 520, and an output unit 530. The information acquisition unit 510, the arithmetic unit 520, and the output unit 530 are realized by the processing unit 501 executing a program stored in the storage unit 502. Note that the processing unit 501 may include an input unit 540. The input unit 540 receives the input of information such as the working hours of the user.

[0016] The information acquisition unit 510 acquires information regarding the operation data of the injection molding machine 100 from the injection molding machine 100. The information acquisition unit 510 stores this information in the storage unit 502.

[0017] The information regarding the operation data of the injection molding machine 100 acquired by the information acquisition unit 510 is stored in the storage unit 502. Also, the storage unit 502 stores in advance information such as the daily working hours of the user in the factory. "User" refers to, for example, workers, team leaders, managers, operators, etc.

[0018] The arithmetic unit 520 calculates each piece of information stored in the storage unit 502. The arithmetic unit 520 calculates and stores in the storage unit 502 the operation time, load time, planned stop time, setup / abnormal stop time, operation time, chocolate stop / speed reduction time, net operation time, defective loss time, and value operation time within a predetermined period. Each of the above-mentioned times is also collectively referred to as operation time information. The operation time information is information obtained by aggregating information regarding the operation data of the factory or production line equipped with the injection molding machine 100 for a predetermined period. In this embodiment, the predetermined period is a specified month within January to December. Hereinafter, the "predetermined period" is also referred to as the aggregation period.

[0019] The output unit 530 generates a management screen for displaying the information stored in the storage unit 502 and the information calculated by the calculation unit 520. The generated management screen is output to the display unit 450 and displayed by the display unit 450.

[0020] The display unit 450 is constituted by a liquid crystal display provided in the management device 500. A management screen transmitted from the management device 500 is displayed on the display unit 450.

[0021] Hereinafter, the operation time information calculated by the calculation unit 520 will be described. In this specification, "time" includes year, month, day, hour, minute, and second.

[0022] In this embodiment, the operation time is the time obtained by multiplying the number of days the user worked in a month by the user's one-day working hours at the factory where the injection molding machine 100 is installed. Note that the operation time may be the time obtained by adding the overtime hours input by the user to the input unit 540 to the time calculated by the above method. Also, the operation time may be the working hours of the user within a month calculated from the login history of the attendance management system when the management device 500 is connected to the user's attendance management system.

[0023] The load time is the time during the operation time when the injection molding machine 100 is operating. When two or more injection molding machines 100 are connected to the management device 500, the load time is the average value of the times when each injection molding machine 100 is operating. The load time is calculated from the operation history stored in the storage unit 502.

[0024] The planned stop time is the difference between the operation time and the load time. The planned stop time is also referred to as the first information.

[0025] Setup and abnormal stop time is the sum of the time the injection molding machine 100 was stopped for setup work and the time it was stopped due to an abnormality, within the total load time. If two or more injection molding machines 100 are connected to the control device 500, the setup and abnormal stop time is the average value of the time each injection molding machine 100 was stopped for setup work and the time it was stopped due to an abnormality. The setup and abnormal stop time is calculated from the setup work history and abnormal stop history stored in the storage unit 502. The setup and abnormal stop time is also called the second information.

[0026] Operating time is the difference between load time and setup / abnormal shutdown time.

[0027] The short stop / speed reduction time is the time obtained by multiplying the difference between the actual cycle time and the standard cycle time of the injection molding machine 100 by the number of molded products produced by the injection molding machine 100 during the operating time. Here, the actual cycle time of the injection molding machine 100 is the value obtained by dividing the operating time by the number of molded products produced by the injection molding machine 100 during the operating time. The standard cycle time of the injection molding machine 100 is determined from the actual cycle time, or a value preset by the user is stored in the storage unit 502. The standard cycle time may be, for example, the average value of the actual cycle time over one year. If two or more injection molding machines 100 are connected to the control device 500, the short stop / speed reduction time is the average value of the short stop / speed reduction times of each injection molding machine 100. The short stop / speed reduction time is also called the third piece of information.

[0028] In this specification, "brief stoppage" refers to a very temporary stoppage of the injection molding machine 100 that automatically recovers and resumes production without user intervention. For example, if a removal machine that removes molded products from a mold by suction fails to remove the molded product from the mold the first time and has to perform the same operation again, the cycle time will be longer. Brief stoppage / speed reduction time is the time loss that occurs when the same control is executed again or a different control is executed because the device is operating normally but has not achieved its operational purpose, as described above. Brief stoppage / speed reduction time is also called time related to performance loss.

[0029] Net operating time is the difference between operating time and time spent on short stops or speed reductions.

[0030] Defect loss time is the time obtained by multiplying the net operating time by the defect rate of the molded products. Here, the defect rate is the value obtained by dividing the number of defective products among the molded products produced by the injection molding machine 100 during operating time by the total number of molded products produced by the injection molding machine 100 during operating time. Defect loss time is also called the fourth piece of information.

[0031] Value-based operating time is the difference between net operating time and time spent on losses due to defects. Value-based operating time is also called the fifth piece of information.

[0032] Figure 2 shows an example of the management screen SC1 displayed by the display unit 450 in this embodiment. Each piece of operating time information is displayed as a rectangle on the management screen SC1. The length of one pair of opposing sides of this rectangle is proportional to the length of time for each piece of operating time information. In this specification, the direction parallel to the side of the rectangle whose length is proportional to the length of time for each piece of operating time information is referred to as the "length of time direction." The rectangles representing each piece of operating time information are displayed on the management screen SC1 such that the length of time directions of all the rectangles representing each piece of operating time information are parallel. In this specification, the method of displaying the operating time information described above is referred to as "displaying in a strip with the length of time direction aligned." The strip-like display is also called a bar display.

[0033] On the SC1 management screen, operating time information is displayed in a band aligned with the length of time. Operating time is displayed as a band at the top of the operating time information, with the horizontal direction as the length of time. Load time and planned downtime are displayed as a band below the operating time bar. Setup / abnormal downtime and operating time are displayed as a band below the load time bar. Minor stoppages / speed reduction time and net operating time are displayed as a band below the operating time bar. Defective loss time and value operating time are displayed as a band below the net operating time bar. When multiple bars representing operating time information are lined up touching in the length of time direction, each bar representing operating time information is displayed in a different color or pattern. The bars representing operating time information display the numerical value of the length of time for each operating time information. Note that operating time information may also be displayed on the SC1 management screen with a length of time in a direction other than horizontal.

[0034] Furthermore, the management screen SC1 may not display operating time, load time, operating time, and net operating time from the operating time information, but may only display planned downtime, setup / abnormal downtime, minor stop / speed reduction time, defective loss time, and value operating time, i.e., only the first to fifth pieces of information. In addition, the management screen SC1 may not display all of the first to fifth pieces of information, but may display only two or more consecutive pieces of information from the first to fifth pieces of information, aligned in the length direction of time, in a strip.

[0035] According to the injection molding machine management system 10 of the first embodiment described above, the information acquisition unit 510 acquires information regarding the operation data of the injection molding machine 100 and stores it in the storage unit 502, and the calculation unit 520 calculates the information stored in the storage unit 502 to calculate the operation time information for the aggregation period, and the calculated operation time information is displayed on the display unit 450 in a strip shape aligned in the length direction of time.

[0036] If the first and second pieces of information are displayed in a band aligned with the length of time on the management screen SC1, it is possible to visualize which is longer for the injection molding machine 100 during the aggregation period: the planned downtime or the setup / abnormal downtime. Furthermore, if the second and third pieces of information are displayed in a band aligned with the length of time on the management screen SC1, it is possible to visualize which is longer for the injection molding machine 100 during the aggregation period: the setup / abnormal downtime or the short stop / speed reduction time. Furthermore, if the third and fourth pieces of information are displayed in a band aligned with the length of time on the management screen SC1, it is possible to visualize which is longer for the injection molding machine 100 during the aggregation period: the short stop / speed reduction time or the defect loss time. Furthermore, if the fourth and fifth pieces of information are displayed in a band aligned with the length of time on the management screen SC1, it is possible to visualize the defect rate of molded products produced by the injection molding machine 100 during the aggregation period.

[0037] If the third, fourth, and fifth pieces of information are displayed in a band aligned in the direction of time on the management screen SC1, it is possible to visualize the length of the value operating time, which is the time when the injection molding machine 100 is operating at its original production efficiency, and the length of the defective loss time and minor stoppage / speed reduction time, which are the times when the machine is operating without being able to achieve its original production efficiency, within the time when the injection molding machine 100 is not stopped during the aggregation period.

[0038] If the first to fifth pieces of information are displayed in a strip aligned with the length of time on the management screen SC1, the total time for each of the following for the injection molding machine 100 during the aggregation period can be visualized.

[0039] Therefore, if two or more consecutive pieces of information from the first, second, third, fourth, and fifth pieces of information for the injection molding machine 100 are displayed in a band aligned in the length direction of time on the management screen SC1, it becomes easier to grasp the total time for each operating state of the injection molding machine 100 during the aggregation period, and thus it becomes easier to grasp the productivity of the factory equipped with the injection molding machine 100. As a result, even users without specialized knowledge of factory management can easily recognize which of the following should be shortened in order to increase the ratio of value-added operating time to total operating time: planned downtime, setup / abnormal downtime, minor stop / speed reduction time, and defective loss time.

[0040] B. Second Embodiment: In the first embodiment, the aggregation period was a designated month between January and December. In contrast, in the second embodiment, the aggregation period is a period represented by the time of order for molded items. Specifically, the aggregation period is the period from the order date to the delivery date for molded items produced in the past. The aggregation period may also be the period from the order date to a predetermined date after the order date for molded items currently being produced. The predetermined date after the order date can be any date within the period from the order date to the present. For example, the predetermined date after the order date may be the last day of the month or the current date. Furthermore, the aggregation period may also be a period represented by the production unit of the molded items. Specifically, the aggregation period may be the period from the order date to the delivery date for production in the production unit of molded items produced in the past. Here, the production unit of molded items refers to a lot unit, box unit, tray unit, etc.

[0041] In the second embodiment, operating time is the time during which the factory or the production line producing a specific molded item was operational during the aggregation period. Furthermore, in the second embodiment, load time is the time during which the injection molding machine 100 was operational to produce a specific molded item. Planned downtime is the difference between operating time and load time. Therefore, in the second embodiment, planned downtime includes the time during operating time when the injection molding machine 100 produced molded items other than the specific molded item.

[0042] In the second embodiment, the processing unit 501 of the management device 500 includes an input unit 540. The input unit 540 receives input information such as the order date and shipping delivery date for the production of molded items.

[0043] Figure 3 shows an example of the management screen SC2 displayed by the display unit 450 in the second embodiment. The management screen SC2 displays graph G1. At the top of graph G1, the operating time is displayed as a bar. Below the bars showing the operating time, for each injection molding machine 100, the first to fifth pieces of information when a specific molded product was produced within the operating time are displayed as a bar aligned in the length direction of time. The first to fifth pieces of information for each injection molding machine 100 are displayed as bar graphs so that the user can recognize the proportion of each piece of information in the operating time.

[0044] Figure 4 shows an example of another management screen SC3 displayed by the display unit 450 in the second embodiment. Management screen SC3 displays graphs G1 and G2. Graph G2 displays the average values ​​of the first to fifth pieces of information for each injection molding machine 100 when a specific molded product is produced within the operating time, as a pie chart. In the center of graph G2, the percentage of value-generating time in the total operating time is displayed numerically.

[0045] According to the injection molding machine management system 10 of the second embodiment described above, the first to fifth pieces of information for each injection molding machine 100 when producing a specific molded item are displayed in a strip aligned in the direction of time length, making it easy to grasp the total time for each operating state of the injection molding machine 100 during the aggregation period. Therefore, for injection molding machines 100 with short value operating times, it is easy for the user to understand which of the first to fourth pieces of information has the longest operating time. Consequently, it is easy to grasp the productivity of the production line equipped with the injection molding machines 100.

[0046] In the second embodiment, the planned downtime of the injection molding machine 100 is the sum of the time the injection molding machine 100 was on planned downtime and the time the injection molding machine 100 was producing molded items other than the specific molded item. Therefore, by comparing the planned downtime of multiple injection molding machines 100, it becomes easier to identify injection molding machines 100 whose value-added operating time is low because they were producing molded items other than the specific molded item. Consequently, it becomes easier to understand the productivity of the injection molding machine 100 when producing a specific molded item. As a result, when a user receives an order to produce a specific molded item, they can easily select an injection molding machine 100 that has shown high productivity when producing the same molded item in the past.

[0047] C. Third Embodiment: In the third embodiment, the operating time information of the injection molding machine 100 during the aggregation period is used to predict the operating time information when the injection molding machine 100 produces a specific molded item. Specifically, when the production plan for a molded item is changed because the delivery date is changed while producing that item, the operating time information before the change in the production plan is compared with the operating time information after the change in the production plan. The aggregation period in the third embodiment is the same as the aggregation period in the second embodiment. The operating time information in the third embodiment is calculated in the same way as in the second embodiment.

[0048] Figure 5 shows an example of the management screen SC4 displayed by the display unit 450 in the third embodiment. The management screen SC4 displays a production plan change information display area R1 and a production plan change information display area R2.

[0049] The pre-production plan change information display area R1 displays operating time information for the molded items before the production schedule was changed. In the pre-production plan change information display area R1, the time from the day the production plan was changed to the delivery date set before the production plan was changed for the molded items currently being produced is displayed as a bar representing the planned operating time. Below the bar representing the planned operating time, for each injection molding machine 100, the second to fifth pieces of information, which are aggregated for the planned downtime and aggregation period, are displayed as bars aligned in the length direction of time. The second to fifth pieces of information, which are aggregated for the planned downtime and aggregation period, are displayed as bar graphs so that the user can recognize the proportion of each piece of information in the planned operating time. Here, the planned downtime for the injection molding machine 100 is the sum of the planned downtime and the time that the injection molding machine 100 is scheduled to operate within the planned operating time to produce molded items other than the specific molded item.

[0050] In the production plan change information display area R2, the operating time information after the production schedule for the molded items has been changed is displayed. In the production plan change information display area R2, the time from the day the production plan was changed to the delivery date after the production plan change for the molded items currently being produced is displayed as a bar representing the planned operating time. Below the bar representing the planned operating time, for each injection molding machine 100, the second to fifth pieces of information, which are aggregated for the planned downtime and aggregation period, are displayed as a bar aligned in the length direction of time. The second to fifth pieces of information, which are aggregated for the planned downtime and aggregation period, are displayed as a bar graph so that the user can recognize the respective proportion of the planned operating time. Next to the bar showing the operating time information for each injection molding machine 100, the number of molded products that can be produced within the planned operating time for each injection molding machine 100 is displayed.

[0051] According to the injection molding machine management system 10 of the third embodiment described above, for each injection molding machine 100, the ratio of the planned downtime and the aggregated information from the second to fifth pieces of information, relative to the planned operating time, is displayed in a bar graph for both the period before the production schedule of the molded items is changed and the period after the production schedule of the molded items is changed. Therefore, when the production schedule of the molded items is changed, it is possible for the user to easily identify the injection molding machines 100 with long value-based operating times. By producing molded products using injection molding machines 100 with long value-based operating times, the production efficiency of molded products can be increased.

[0052] D. Fourth Embodiment: Figure 6 is an explanatory diagram showing the schematic configuration of the injection molding machine management system 10 in the fourth embodiment. The management device 500 is connected to the injection molding unit 200. The injection molding unit 200 comprises a molding machine 100 and peripheral equipment 201. The peripheral equipment 201 comprises at least one of the following: a resin material dryer 210, a resin material supply device 220, a removal device 230, a mold temperature control device 240, an annealing device 250, a washing machine 260, an inspection machine 270, a mold mounting machine 280, a tray transport device 290, and a packaging device 300. The management device 500 is connected to the injection molding unit 200 in a communicative manner.

[0053] The resin material dryer 210 dries the material for the molded products to be molded by the injection molding machine 100. The material is, for example, pelletized resin. The resin material supply device 220 supplies the material for the molded products to the hopper of the injection molding machine 100. The extraction device 230 removes the molded products formed by the injection molding machine 100 from the injection molding machine 100. The mold temperature control device 240 controls the temperature of the mold attached to the clamping device of the injection molding machine 100. The annealing device 250 performs annealing on the molded products formed by the injection molding machine 100. The washing device 260 washes the molded products formed by the injection molding machine 100. The inspection device 270 inspects the molded products and determines whether they are defective. The mold mounting device 280 mounts the mold to the clamping device of the injection molding machine 100. The tray transport device 290 transports trays containing the molded products. The packaging device 300 packages the molded product.

[0054] The resin material dryer 210, resin material supply device 220, extraction device 230, mold temperature control device 240, annealing device 250, washing device 260, inspection device 270, mold mounting device 280, tray transport device 290, and packaging device 300 each include a control unit (not shown). These control units control the respective devices and transmit information regarding the operation data of each device to the management device 500. Note that the injection molding unit 200 may have multiple units of each of the peripheral devices 201, rather than having one of each.

[0055] The aggregation period in the fourth embodiment is the same as in the first embodiment. The operating time, load time, and planned downtime in the fourth embodiment are calculated in the same way as in the first embodiment. The planned downtime of the injection molding unit 200 and the planned downtime of the peripheral equipment 201 in the fourth embodiment are equal to the planned downtime of the injection molding machine 100. In the fourth embodiment, the setup / abnormal downtime, minor stop / speed reduction time, defective loss time, and value operating time of the peripheral equipment 201 are calculated in the same way as the times for the injection molding machine 100. Note that the aggregation period in the fourth embodiment may be the same as in the second embodiment. If the aggregation period is the same as in the second embodiment, the operating time, load time, and planned downtime in the fourth embodiment may be calculated in the same way as in the second embodiment.

[0056] Figure 7 shows an example of the management screen SC5 displayed by the display unit 450 in the fourth embodiment. On the management screen SC5, the planned downtime of the injection molding unit 200, the second to fifth information of the injection molding machine 100, and the second to fifth information of each device of the peripheral equipment 201 are displayed in a bar shape aligned in the length direction of time. On the management screen SC5, the operating time is displayed in a bar shape at the top of the operating time information. The load time and planned downtime are displayed as bar graphs below the operating time bar. Below the load time bar, the second to fifth information of each device of the injection molding machine 100 and peripheral equipment 201 of the injection molding unit 200 are displayed as bar graphs. Note that in Figure 7, operating time information is displayed for one unit each of the resin material dryer 210, injection molding machine 100, and extraction machine 230, but operating time information may be displayed for all devices of the injection molding machine 100 and peripheral equipment 201 of the injection molding unit 200.

[0057] The operating time information for the peripheral equipment 201 is described below. The abnormal stop time of the resin material dryer 210 is, for example, the time when it stopped operating due to an abnormality in the humidity or temperature inside the resin material dryer 210, the time when it stopped to remove material from the resin material dryer 210 when the material could no longer be used in the injection molding machine 100, or the time when it stopped due to running out of material. The short stop / speed reduction time of the resin material dryer 210 is, for example, the time when the resin material dryer 210 was operated in a heat-retaining state. The defect rate of the resin material dryer 210 is the amount of material that was not used to produce molded products in the injection molding machine 100 relative to the amount of material put into the resin material dryer 210. Material that was not used in the injection molding machine 100 is, for example, material that spilled when material was put into the resin material dryer 210, or material that was removed from the resin material dryer 210 due to overheating.

[0058] The abnormal stop time of the extraction machine 230 is, for example, the time when the extraction machine 230 stops operating because its safety door opens, or the time when the extraction machine 230 stops operating because it comes into contact with the injection molding machine 100 due to a malfunction. The brief stop / speed reduction time of the extraction machine 230 is, for example, the time when the extraction machine 230 stops due to a brief stop of the injection molding machine 100. Defective products generated by the extraction machine 230 are molded products that fall because the extraction machine 230 was unable to grip the molded product when removing it from the mold of the injection molding machine 100.

[0059] The duration of the operating time information for the injection molding machine 100 and each peripheral device 201 does not necessarily match. For example, even if the resin material dryer 210 stops because it has run out of material, there may still be material pellets or molten resin remaining inside the injection molding machine 100, in the melting section where the material is melted and the injection section where the material is injected. In this case, even if the value operating time of the resin material dryer 210 decreases, the value operating time of the injection molding machine 100 and the extraction machine 230 does not decrease.

[0060] If the injection molding machine 100 malfunctions, the resin material dryer 210 continues to operate by lowering the drying temperature. Therefore, the malfunction time of the resin material dryer 210 does not increase, but the time of short stops and speed reductions of the resin material dryer 210 increases. If the injection molding machine 100 malfunctions, no molded product is produced, so the extraction machine 230 also malfunctions. In this case, the malfunction time of the injection molding machine 100 and the malfunction time of the extraction machine 230 become equal.

[0061] If the time spent stopping or slowing down in the injection molding machine 100 increases, the time spent stopping or slowing down in the extraction machine 230 will also increase. If the time spent stopping or slowing down in the injection molding machine 100 increases, the amount of material consumed per unit time will decrease, and by lowering the drying temperature, the time spent stopping or slowing down in the resin material dryer 210 will increase. If the drying temperature is not changed, the time spent in the resin material dryer 210 due to overheating of the material may increase.

[0062] According to the injection molding machine management system 10 of the fourth embodiment described above, the management screen displays, on a timeline, a strip of information related to the operation data of the injection molding unit 200, specifically the first information of the injection molding unit 200 and the second to fifth information of the injection molding machine 100 and peripheral equipment 201 during the aggregation period. Therefore, it is easy for the user to grasp the total time for each operating state of each peripheral equipment 201 of the injection molding unit 200 during the aggregation period. Consequently, it is easy for the user to consider what measures should be taken for each peripheral equipment 201 of the injection molding unit 200 in order to improve the productivity of the injection molding unit 200.

[0063] E. Fifth Embodiment: In the fifth embodiment, the injection molding machine 100 and peripheral equipment 201 are installed in separate locations within the factory. The peripheral equipment 201 operates not only for a specific injection molding machine 100, but for multiple injection molding machines 100. For example, the resin material dryer 210 dries not only the material used in the first injection molding machine 110, but also the material used in the second injection molding machine 120.

[0064] The aggregation period in the fifth embodiment is the same as in the first embodiment. In the fifth embodiment, the operating time information of the injection molding machine 100 and peripheral equipment 201 is calculated in the same way as in the fourth embodiment, except for the planned downtime of the resin material dryer 210. The planned downtime of the resin material dryer 210 is the sum of the average of the planned downtimes of multiple resin material dryers 210 and the time that the resin material dryer 210 spent drying molded items other than specific molded items. The aggregation period in the fifth embodiment may also be the same as in the second embodiment.

[0065] Figure 8 shows an example of the management screen SC6 displayed by the display unit 450 in the fifth embodiment. On the management screen SC6, the first to fifth pieces of information for each device of a specific injection molding machine 100 and peripheral equipment 201 are displayed in a bar shape aligned in the length direction of time. On the management screen SC6, the operating time is displayed as a bar at the top of the operating time information. Below the operating time bar, the first to fifth pieces of information for each device of a specific injection molding machine 100 and peripheral equipment 201 are displayed as a bar graph.

[0066] If a specific injection molding machine 100 malfunctions and stops, the resin material dryer 210 either continues operating by lowering the drying temperature, or replaces the material to prevent delays in the production schedule of the injection molding machines 100 other than the specific injection molding machine 100. If the resin material dryer 210 replaces the material to prevent delays in the production schedule of the injection molding machines 100 other than the specific injection molding machine 100, the malfunctioning downtime of the resin material dryer 210 does not increase, and the planned downtime of the resin material dryer 210 increases.

[0067] According to the fifth embodiment of the injection molding machine management system 10 described above, the management screen SC1 displays the first to fifth pieces of information for a specific injection molding machine 100 and peripheral equipment 201 that operates for multiple injection molding machines 100 other than the specific one, aligned in the length of time direction, in a strip format. This makes it easy for the user to understand to what extent the specific injection molding machine 100 occupies the peripheral equipment 201. Therefore, it becomes easier for the user to consider what measures should be taken for the specific injection molding machine 100 in order to increase the valuable operating time of the peripheral equipment 201.

[0068] F. Other Embodiments (F-1) In the above embodiment, the aggregation period may be a period expressed in units of years, months, days, hours, minutes, or seconds.

[0069] (F-2) In the first embodiment, the aggregation period may be a period represented by the time of order for the molded item, or a period represented by the production unit of the molded item. In the first embodiment, if the aggregation period is represented by the time of order for the molded item, the aggregation period may be the period from the order date for production of the molded item to the delivery date, or the period from the order date for production of the molded item to a predetermined date after the order date.

[0070] (F-3) In the above embodiment, if the aggregation period is represented by the time of order for the molded item, the order date and delivery date of the molded item, or the order date and predetermined dates thereafter of the order date of the molded item, may be displayed on the management screen displayed on the display unit 450.

[0071] (F-4) In the second to fifth embodiments, the management screen displayed on the display unit 450 may display information such as the operating time of the injection molding machine 100, the load time of the injection molding machine 100, the operating time of the injection molding machine 100, and the net operating time of the injection molding machine 100, all aligned in the length direction of time, in a bar shape, together with the bar graph displayed on the management screen in each embodiment, or it may be displayed in place of the bar graph displayed on the management screen in each embodiment.

[0072] (F-5) In the second embodiment, the management screen displayed on the display unit 450 may, instead of graph G1 or graph G2, display two or more consecutive pieces of information from the first to fifth pieces of information of the injection molding machine 100 in a strip aligned in the length direction of time.

[0073] (F-6) In the above embodiment, the display unit 450 may be provided in a terminal device connected to the management device 500 via the network NT. The terminal device can be a tablet, personal computer, smartphone, or handheld terminal.

[0074] G. Other forms: This disclosure is not limited to the embodiments described above, and can be implemented in various forms without departing from its spirit. For example, this disclosure can also be implemented in the following forms. The technical features in the embodiments described below that correspond to the technical features in each of the forms described below can be replaced or combined as appropriate in order to solve some or all of the problems of this disclosure, or to achieve some or all of the effects of this disclosure. Furthermore, if such technical features are not described as essential in this specification, they can be deleted as appropriate.

[0075] (1) According to one embodiment of the present disclosure, an injection molding machine management system is provided. This injection molding machine management system includes a display unit that displays operating time information, which is information aggregated over a predetermined period of time regarding the operation data of a factory or production line equipped with an injection molding machine. The display unit displays two or more consecutive pieces of information in a strip aligned in the length direction of time, from among the following: first information, which is information regarding the planned downtime of the injection molding machine; second information, which is information regarding the setup time of the injection molding machine or information regarding the abnormal downtime of the injection molding machine; third information, which is time information regarding the performance loss of the injection molding machine; fourth information, which is time information regarding the defect loss of the injection molding machine; and fifth information, which is information regarding the value operating time of the injection molding machine.

[0076] This configuration makes it easier for users to understand the total time spent on planned downtime, setup / abnormal downtime, minor stoppages / speed reductions, defective loss time, and value-added operating time for injection molding machines in a factory or production line equipped with injection molding machines, over a predetermined period. Therefore, it makes it easier for users to understand the productivity of the factory or production line equipped with injection molding machines.

[0077] (2) In the above configuration, the operating time information includes information relating to the operating data of the injection molding machine when the injection molding machine produces a specific molded item, and the first information may include information relating to the time when the injection molding machine produces molded items other than the specific molded item. With this configuration, it is possible for the user to easily identify injection molding machines in which the ratio of value operating time to operating time is small because they were producing molded items other than the specific molded item during a predetermined period.

[0078] (3) According to another form of the present disclosure, an injection molding machine management system is provided. This injection molding machine management system includes a display unit that displays aggregated information regarding the operation data of an injection molding unit comprising an injection molding machine and peripheral equipment for the injection molding machine over a predetermined period, wherein the display unit displays information regarding the planned downtime of the injection molding unit, information regarding the setup time of the injection molding machine or information regarding the abnormal downtime of the injection molding machine, time information regarding the performance loss of the injection molding machine, time information regarding the defect loss of the injection molding machine, information regarding the value operating time of the injection molding machine, information regarding the setup time of the peripheral equipment or information regarding the abnormal downtime of the peripheral equipment, time information regarding the performance loss of the peripheral equipment, time information regarding the defect loss of the peripheral equipment, and information regarding the value operating time of the peripheral equipment in a strip aligned in the length direction of time. With this form, the user can easily grasp the first information of the injection molding unit and the second to fifth information of the injection molding machine and peripheral equipment over a predetermined period.

[0079] (4) In the above configuration, the peripheral equipment may be at least one of a resin material dryer, a resin material supply device, a removal device, a mold temperature control device, an annealing device, a washing machine, an inspection machine, a mold mounting machine, a tray conveying device, and a packaging device. With this configuration, the user can easily simultaneously grasp the first information of the injection molding unit and the second to fifth information of the injection molding machine and the peripheral equipment described above for a predetermined period of time in a factory or production line equipped with an injection molding machine and the above-mentioned peripheral equipment.

[0080] (5) In the above configuration, the predetermined period may be expressed in units of years, months, days, hours, minutes, or seconds. With this configuration, it is possible for the user to easily grasp the operating time information of the injection molding machine or peripheral equipment during the period in the units described above.

[0081] (6) In the above configuration, the predetermined period may be a period represented by the time of order for the molded item, or a period represented by the production unit of the molded item. With this configuration, it is possible for the user to easily grasp the operating time information of the injection molding machine or peripheral equipment during the period represented by the time of order for molded items produced in the past, or the period represented by the production unit.

[0082] (7) In the above configuration, the predetermined period is represented by the time of order for the molded item, and the predetermined period may be (1) the period from the order date to the delivery date, or (2) the period from the order date to a predetermined date after the order date. With this configuration, when the production plan for the molded item is changed, the user can easily compare the first to fifth pieces of information of the injection molding machine before and after the production plan is changed.

[0083] (8) In the above configuration, the display unit may display the information relating to the operating time of the injection molding machine, the information relating to the load time of the injection molding machine, the information relating to the operating time of the injection molding machine, and the information relating to the net operating time of the injection molding machine in a strip with the length of time aligned. With this configuration, it is possible to grasp not only the first to fifth pieces of information of the injection molding machine, but also the total time of each piece of operating time information of the injection molding machine over a predetermined period. [Explanation of Symbols]

[0084] 10...Injection molding machine management system, 100...Injection molding machine, 110...First injection molding machine, 111...First control unit, 120...Second injection molding machine, 121...Second control unit, 130...Third injection molding machine, 131...Third control unit, 200...Injection molding unit, 201...Peripheral equipment, 210...Resin material dryer, 220...Resin material supply device, 230...Removal machine, 240...Mold temperature control device, 250...Annealing device, 260...Washing Cleaning machine, 270... Inspection machine, 280... Mold mounting machine, 290... Tray transport device, 300... Packaging device, 450... Display unit, 500... Management device, 501... Processing unit, 502... Storage unit, 510... Information acquisition unit, 520... Calculation unit, 530... Output unit, 540... Input unit, G1, G2... Graph, NT... Network, R1... Information display area before production plan change, R2... Information display area after production plan change, SC1~SC6... Management screen

Claims

1. Injection molding machine management system, It includes a display unit that displays operating time information, which is information aggregated over a predetermined period of time regarding the operating data of a factory or production line equipped with an injection molding machine. The aforementioned operating time information includes information regarding the operating data of the injection molding machine when the injection molding machine produced a specific molded item. The display unit displays the operating time information as follows: The first piece of information is information relating to the planned downtime of the injection molding machine, Second information, which is information regarding the setup time of the injection molding machine or information regarding the abnormal shutdown time of the injection molding machine, The third piece of information is time information relating to the performance loss of the injection molding machine, The fourth piece of information is time information relating to the defective loss of the injection molding machine, The fifth piece of information is information relating to the value operating time of the injection molding machine, Of these, two or more consecutive pieces of information are displayed in a strip aligned in the length direction of time, The first information includes information regarding the time during which the injection molding machine produced molded items other than the specific molded item, Injection molding machine management system.

2. Injection molding machine management system, The injection molding unit, which comprises an injection molding machine and peripheral equipment for the injection molding machine, is equipped with a display unit that displays information aggregated over a predetermined period of time regarding the operation data of the injection molding unit. The aforementioned display unit is Information regarding the planned downtime of the injection molding unit, Information relating to the setup time of the injection molding machine or information relating to the abnormal shutdown time of the injection molding machine, Time information relating to the performance loss of the injection molding machine, Time information relating to defects in the injection molding machine, Information relating to the value operating time of the injection molding machine, Information regarding the setup time of the peripheral device or information regarding the abnormal shutdown time of the peripheral device, Time information regarding the performance loss of the aforementioned peripheral device, Time information regarding the failure loss of the aforementioned peripheral device, Information regarding the value operating time of the aforementioned peripheral device, Display the time in a strip, aligned along the length of time. Injection molding machine management system.

3. An injection molding machine management system according to claim 2, The aforementioned peripheral equipment includes at least one of a resin material dryer, a resin material supply device, a removal device, a mold temperature control device, an annealing device, a washing machine, an inspection machine, a mold mounting machine, a tray conveying device, and a packaging device. Injection molding machine management system.

4. An injection molding machine management system according to any one of claims 1 to 3, The aforementioned predetermined period is a period expressed in units of years, months, days, hours, minutes, or seconds. Injection molding machine management system.

5. An injection molding machine management system according to any one of claims 1 to 3, The aforementioned predetermined period is a period represented by the time related to the order for the molded item, or a period represented by the production unit of the molded item. Injection molding machine management system.

6. An injection molding machine management system according to claim 5, The aforementioned predetermined period is represented by the time of order placement for the molded item, The aforementioned predetermined period is (1) the period from the order date to the delivery date, or (2) the period from the order date to a predetermined date after the order date. Injection molding machine management system.

7. An injection molding machine management system according to any one of claims 1 to 3, The aforementioned display unit is Information relating to the operating time of the injection molding machine, Information regarding the load time of the injection molding machine, Information relating to the operating time of the injection molding machine, Information relating to the net operating time of the injection molding machine, Display the time in a strip, aligned along the length of time. Injection molding machine management system.

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