Information processing device

Abstract

The present invention provides an information processing device that allows for easy monitoring of the operating status of a molding system. [Solution] The information processing device is connected to a molding system comprising: a molding device that repeatedly performs a molding cycle in which molten resin is injected into a mold to form a molded product; a supply device that supplies the resin used in M ​​molding cycles to the molding device in a batch; a drying device that dries the resin used in M ​​× N molding cycles and supplies it to the supply device in a batch; a removal device that removes the molded product from the molding device after each molding cycle; and an inspection device that inspects the molded product removed by the removal device. The information processing device performs an acquisition process that repeatedly acquires operation information of the drying device, supply device, molding device, removal device, and inspection device at predetermined time intervals, and a display process that arranges the multiple operation information repeatedly acquired in the acquisition process in chronological order and displays them in a list on a display.

Description

【Technical Field】 【0001】 The present invention relates to an information processing apparatus for grasping the operating state of a molding system. 【Background Art】 【0002】 Conventionally, in order to manage the operating state of a molding apparatus that injects molten resin into a mold to form a molded product, an information processing apparatus that collects various data from the molding apparatus via a communication network is known (see, for example, Patent Documents 1 and 2). 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 International Publication No. 2005 / 084916 【Patent Document 2】 Japanese Patent Application Laid-Open No. 2004-155055 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 However, since the molding apparatus operates in conjunction with a drying apparatus and a supply apparatus on the upstream side of the molding process and a take-out apparatus and an inspection apparatus on the downstream side of the molding process, it is difficult to grasp the operating state of the entire system even by collecting only the data output from the molding apparatus. In particular, while the take-out apparatus and the inspection apparatus operate for each molding cycle of the molding apparatus, the drying apparatus and the supply apparatus perform batch processing by collecting resins for a plurality of molding cycles. Therefore, even if an abnormality is detected in a specific apparatus, it is difficult to identify the cause. 【0005】 The present invention has been made in view of the above circumstances, and an object thereof is to provide an information processing apparatus capable of easily grasping the operating state of a molding system. 【Means for Solving the Problems】 【0006】 To solve the above problems, the present invention provides an information processing device connected to a molding system comprising: a molding apparatus that repeatedly performs a molding cycle of injecting molten resin into a mold to form a molded product; a supply device that supplies the resin used in M ​​(M is an integer of 2 or more) times the molding cycle to the molding apparatus in a batch; a drying apparatus that dries the resin used in M ​​× N (N is an integer of 2 or more) times the molding cycle and supplies it in a batch to the supply device; a removal device that removes the molded product from the molding apparatus after each molding cycle; and an inspection device that inspects the molded product removed by the removal device, characterized in that the information processing device is connected to a molding system comprising: an acquisition process that repeatedly acquires operation information of the drying apparatus, the supply device, the molding apparatus, the removal device, and the inspection device at predetermined time intervals; and a display process that arranges the plurality of operation information repeatedly acquired in the acquisition process in chronological order and displays them in a list on a display. [Effects of the Invention] 【0007】 According to the present invention, the operating state of the molding system can be easily understood. [Brief explanation of the drawing] 【0008】 [Figure 1] This is a schematic diagram of the molding system. [Figure 2] This is a hardware configuration diagram of an information processing device. [Figure 3] This is an example of time lag information (A) and collected motion information (B). [Figure 4] This is a flowchart of the operation information display process. [Figure 5] This is an example of an operation information notification screen. [Figure 6] This is another example of an operation information notification screen. [Modes for carrying out the invention] 【0009】 The molding system 10 according to the present invention will be described below with reference to the drawings. Figure 1 is a schematic diagram of the molding system 10. The molding system 10 is a system that repeatedly performs a molding process in which a resin material is dried and supplied to a molding device 13, the resin material is plasticized in the molding device 13 and injected into a mold to form a molded product, and the molded product is removed from the molding device 13 and inspected. 【0010】 As shown in Figure 1, the molding system 10 comprises a drying device 11, supply devices 12A and 12B (hereinafter collectively referred to as "supply device 12"), molding devices 13A, 13B, and 13C (hereinafter collectively referred to as "molding device 13"), removal devices 14A, 14B, and 14C (hereinafter collectively referred to as "removal device 14"), and inspection devices 15A, 15B, and 15C (hereinafter collectively referred to as "inspection device 15"). 【0011】 The molding process (resin flow) of the molding system 10 proceeds from left to right in Figure 1. Hereinafter, among the devices that make up the molding system 10, devices located relatively upstream of the molding process (upstream of the resin flow) will be referred to as "upstream devices," and devices located relatively downstream of the molding process (downstream of the resin flow) will be referred to as "downstream devices." Upstream devices can be connected to multiple downstream devices. In other words, upstream devices can supply resin (resin material, molded products) to multiple downstream devices. That is, the devices that make up the molding system 10 form a tree structure from the upstream side to the downstream side of the molding process. 【0012】 In this embodiment, the drying apparatus 11 supplies resin material to supply devices 12A and 12B. Supply device 12A supplies resin material to molding apparatuses 13A and 13B, and supply device 12B supplies resin material to molding apparatus 13C. Molding apparatus 13A supplies molded products to extraction device 14A, molding apparatus 13B supplies molded products to extraction device 14B, and molding apparatus 13C supplies molded products to extraction device 14C. Extraction device 14A supplies molded products to inspection device 15A, extraction device 14B supplies molded products to inspection device 15B, and extraction device 14C supplies molded products to inspection device 15C. However, the number of each device constituting the molding system 10 and their connection relationships are not limited to the example in Figure 1. 【0013】 Furthermore, in the molding system 10, multiple devices that realize the molding process (i.e., multiple devices through which the same resin flows) are collectively referred to as a "line." That is, the molding system 10 shown in Figure 1 includes a line consisting of a drying device 11, a supply device 12A, a molding device 13A, a removal device 14A, and an inspection device 15A; a line consisting of a drying device 11, a supply device 12A, a molding device 13B, a removal device 14B, and an inspection device 15B; and a line consisting of a drying device 11, a supply device 12B, a molding device 13C, a removal device 14C, and an inspection device 15C. Also, the drying device 11 and the supply device 12 may belong to multiple lines. That is, the supply device 12A belongs to two lines, and the drying device 11 belongs to three lines. However, the number of lines constituting the molding system 10 is not limited to the example in Figure 1. 【0014】 The drying device 11 dries the resin material (e.g., pellets, recycled resin) that will be used as the raw material for the molded product, and supplies the dried resin material to the supply device 12. The supply device 12 temporarily stores the resin material supplied from the drying device 11 and supplies it to the molding device 13 at a predetermined timing. The molding device 13 plasticizes the resin material supplied from the supply device 12 and molds the product by injecting the plasticized molten resin into a mold. The removal device 14 uses a robotic arm to remove the molded product formed by the molding device 13 from the mold and supplies it to the inspection device 15. The inspection device 15 uses a camera, weighing scale, and other sensors to inspect whether the molded product supplied from the removal device 14 meets predetermined conditions (e.g., shape, color, weight). The configurations of each device 11 to 15 are already well known, so a detailed explanation is omitted. 【0015】 Next, the molding device 13 closes and clamps the mold. Then, the molding device 13 injects molten resin into the cavity of the clamped mold. Next, the molding device 13 measures the molten resin to be injected next. Then, the molding device 13 opens the mold. Hereafter, this series of operations will be referred to as the "molding cycle". The molding device 13 then molds multiple molded products in sequence by repeatedly executing the molding cycle. 【0016】 The removal device 14 and the inspection device 15 operate for each molding cycle of the molding device 13. That is, the removal device 14 removes the molded product each time the molding device 13 molds a product. The inspection device 15 also inspects the molded product each time the removal device 14 removes it. On the other hand, the drying device 11 and the supply device 12 process the resin material used in multiple molding cycles in batches (hereinafter sometimes referred to as "batch processing"). More specifically, the supply device 12 supplies the resin material used in M ​​molding cycles to the molding device 13 in batches. The drying device 11 dries the resin material used in M ​​× N molding cycles and supplies it to the supply device 12 in batches. M and N are both integers of 2 or more. 【0017】 In this embodiment, the execution time of the molding cycle (hereinafter referred to as "cycle time") is set to 1 (min). Also, the supply devices 12A to 12B supply the resin materials to be used in 10 molding cycles to the molding devices 13A to 13C respectively at a predetermined timing. The supply device 12 may supply the resin material at regular intervals (for example, at 10 - minute intervals), or may supply the resin material at the timing when a request from the molding device 13 is received. Further, the drying device 11 supplies the resin materials to be used in 60 molding cycles to the supply devices 12A to 12B respectively at a predetermined timing. The drying device 11 may supply the resin material at regular intervals (for example, at 60 - minute intervals), or may supply the resin material at the timing when a request from the supply device 12 is received. That is, in this embodiment, M = 10 and N = 6. However, the specific numerical values are not limited to the above example. 【0018】 The information processing device 20 is connected to the molding system 10 via the communication network 2. Also, the information processing device 20 may be included in the molding system 10. The communication network is composed of, for example, the Internet, a mobile communication system, a LAN, or a combination thereof. And the information processing device 20 directly or indirectly collects the operation information (described later) of each device constituting the molding system 10 through the communication network 2. 【0019】 As an example, the information processing device 20 may be individually connected to all the devices constituting the molding system 10. And the information processing device 20 may individually collect the operation information from each device. As another example, the information processing device 20 may be connected only to the molding device 13. Also, the molding device 13 may collect the operation information of other devices (that is, the drying device 11, the supply device 12, the take - out device 14, the inspection device). Further, the information processing device 20 may collect the operation information of the molding device 13 and the operation information of other devices collected by the molding device 13 from the molding device 13. 【0020】 [Configuration of Information Processing Device 20] FIG. 2 is a hardware configuration diagram of the information processing apparatus 20. The information processing apparatus 20 is realized by a general-purpose computer such as a workstation or a personal computer, for example. Note that the information processing apparatus 20 is not limited to being realized by a single apparatus, and may be realized by a plurality of apparatuses that operate in cooperation with each other. 【0021】 As shown in FIG. 2, the information processing apparatus 20 mainly includes a CPU 21, a memory 22, a storage 23, an input device 24, a display 25, and a communication IF 26. Each component of the information processing apparatus 20 is connected to a communication bus 27. 【0022】 The CPU 21 realizes the processing described later by executing a series of instructions included in the program 28 loaded into the memory 22. The memory 22 is realized as, for example, a RAM or other volatile memory. The storage 23 is realized as, for example, a ROM, a hard disk device, a flash memory, or other non-volatile storage device. The program 28 is stored in the storage 23, and is loaded into the memory 22 as necessary and executed by the CPU 21. 【0023】 The input device 24 is an input interface that receives an input operation from an operator of the information processing apparatus 20, such as a keyboard or a pointing device, for example. The display 25 is an output interface that outputs (displays) information to an operator of the information processing apparatus 20. The communication IF 26 is a communication interface that transmits and receives data to and from an external device (for example, the molding system 10) via a communication network. 【0024】 [Information stored in the storage 23] FIG. 3(A) is an example of the time lag information of the molding system 10. The time lag information is stored in the storage 23. The information processing apparatus 20 may store, for example, the time lag information input by an administrator through the input device 24 in the storage 23, or may store the time lag information received from an external device through the communication IF 26 in the storage 23. 【0025】 Time lag information indicates the time lag in the operation timing of each device that makes up the line. More specifically, time lag information indicates the time difference in which each device processes the same resin. In this embodiment, the timing at which the molding device 13 injects molten resin into the mold is used as the reference (0 min), and the time lag information is an estimate of the time difference in which other devices process the same resin. The time lag information may be common to all lines or may differ for each line. 【0026】 In the example shown in Figure 3, the resin injected into the mold by the molding device 13 is supplied from the drying device 11 to the supply device 12 60 minutes beforehand, and then supplied from the supply device 12 to the molding device 13 10 minutes beforehand. However, since the drying device 11 and the supply device 12 perform batch processing, the operating timing of the drying device 11, the supply device 12, and the molding device 13 coincides with the time lag information in some molding cycles, but does not coincide with the time lag information in other molding cycles. Furthermore, the molded product formed by the molding device 13 is removed by the removal device 14 after 1 minute and inspected by the inspection device 15 after 2 minutes. 【0027】 Figure 3(B) shows an example of operation information. Operation information refers to information indicating the operating status of each device. Operation information may include, for example, the details of the device's operation (e.g., supply of resin material, injection of molten resin), the result of the operation (e.g., normal, abnormal), and identification information of the resin being operated on (e.g., lot number). Operation information indicating an abnormal operation is referred to as "abnormal information." 【0028】 The drying device 11 outputs operation information, for example, at the timing when it supplies dried resin material to the supply device 12 (at 60-minute intervals in this embodiment). The operation information output by the drying device 11 may include, for example, the result of supplying the resin material (normal, abnormal) and the lot number of the supplied resin material. The supply device 12 outputs operation information, for example, at the timing when it supplies resin material to the molding device 13 (at 10-minute intervals in this embodiment). The operation information output by the drying device 11 and the supply device 12 may include, for example, the result of supplying the resin material (normal, abnormal). 【0029】 The molding apparatus 13 outputs operational information, for example, at the timing of injection of molten resin into the mold (in this embodiment, at 1-minute intervals). The operational information output by the molding apparatus 13 may include, for example, the result of injection of molten resin (normal, abnormal). More specifically, the molding apparatus 13 may determine that the physical quantities detected when injecting the molten resin (e.g., injection speed, injection pressure) are within an acceptable range, and determine that the physical quantities are outside an acceptable range, and output operational information including the determination result. 【0030】 The extraction device 14 outputs operation information, for example, at the timing (in this embodiment, at 1-minute intervals) when the molded product is extracted from the molding device 13. The operation information output by the extraction device 14 may include, for example, the result of extracting the molded product (normal, abnormal). More specifically, the extraction device 14 may determine that the product is "normal" if it can be transported to the inspection device 15 after being extracted from the molding device 13, and determine that it is "abnormal" if it cannot be transported (i.e., the molded product was not molded into the correct shape and could not be grasped by the robot arm), and output operation information including the determination result. 【0031】 The inspection device 15 outputs operational information, for example, at the timing of the inspection of the molded product (in this embodiment, at 1-minute intervals). The operational information output by the inspection device 15 may include, for example, the result of the inspection of the molded product (normal, abnormal). More specifically, the inspection device 15 may determine that the molded product is "normal" if it has the correct shape, color, and weight within the acceptable range, and determine that it is "abnormal" otherwise, and output operational information including the determination result. 【0032】 The molding device 13, the removal device 14, and the inspection device 15 output operational information for each molding cycle. On the other hand, the drying device 11 and the supply device 12 output operational information at longer intervals than the molding device 13, the removal device 14, and the inspection device 15. 【0033】 The information processing device 20 acquires operation information from the drying device 11, the supply device 12, the molding device 13, the removal device 14, and the inspection device 15, and stores multiple operation information acquired at the same time in storage 23, associating them with the acquisition time. The information processing device 20 also repeats the acquisition of operation information at predetermined time intervals (1 min in this embodiment). This process is an example of the acquisition process. Furthermore, the information processing device 20 stores the information shown in Figure 3(B) in storage 23 for each line constituting the molding system 10. 【0034】 Here, "same timing" is not limited to strictly the same time. For example, multiple operational information outputs from each device within the cycle time of one molding cycle may be treated as "multiple operational information at the same timing." Also, since the output interval of operational information differs for each device, it is not guaranteed that operational information can be obtained from all devices at the same acquisition time. In other words, the information processing device 20 acquires operational information from at least some of the multiple devices that make up the line at predetermined time intervals. 【0035】 Furthermore, operation information associated with the same acquisition time does not indicate the operation of each device for the same resin. For example, a molded product that was determined to have "abnormal weight" by the inspection device 15 at acquisition time "11:12" was manufactured using resin material that was supplied from the drying device 11 to the supply device 12 at acquisition time "10:10" (drying completed), and supplied from the supply device 12 to the molding device 13 at acquisition time "11:00" (supply completed), then molded in the molding device 13 at acquisition time "11:10" (molding OK), and removed in the removal device 14 at acquisition time "11:11" (removal OK). Hereafter, operation information from each device whose acquisition time is shifted by the time difference indicated by the time lag information (i.e., operation information that indicates the operation of each device for the same resin) will be referred to as "corresponding operation information". 【0036】 [Operation Information Display Processing] Figure 4 is a flowchart of the operation information display process. Figure 5 is an example of an operation information notification screen. The operation information display process is a process that displays a list of multiple operation information obtained from each device constituting the molding system 10 in chronological order. As an example, the information processing device 20 may execute the operation information display process according to instructions from an operator via the input device 24. As another example, the information processing device 20 may execute the operation information display process when it obtains abnormal information from any of the devices constituting the molding system 10. 【0037】 First, the information processing device 20 determines whether or not abnormal information is included in the operation information already acquired from the molding system 10 (i.e., the operation information stored in the storage 23) (S11). More specifically, the information processing device 20 only needs to determine whether or not abnormal information is included in a predetermined period of time going back from the present time. 【0038】 Next, if the information processing device 20 determines that abnormal information is stored in the storage 23 (S11: Yes), it identifies a predetermined time range, including the acquisition time of the operation information corresponding to the abnormal information, from the operation information of the upstream device from the device that output the abnormal information, according to the time lag information shown in Figure 3(A) (S12). The process in step S12 is an example of the identification process. Below, an example of identifying the predetermined time range for each device will be explained using the abnormal information "Weight Abnormality" acquired from the inspection device 15 at the acquisition time "11:12" in Figure 3(B) as an example. 【0039】 Among the operation information acquired from the drying apparatus 11, the acquisition time of the operation information "drying completed" corresponding to the abnormal information "weight abnormality" acquired at the acquisition time "11:12" is "10:10", and the information processing device 20 identifies a predetermined time range (for example, 09:34 to 10:46) that includes the acquisition time "10:10". Among the operation information acquired from the supply apparatus 12, the acquisition time of the operation information "supply completed" corresponding to the abnormal information "weight abnormality" acquired at the acquisition time "11:12" is "11:00", and the information processing device 20 identifies a predetermined time range (for example, 10:54 to 11:06) that includes the acquisition time "11:00". 【0040】 Of the operation information acquired from the molding apparatus 13, the acquisition time of the operation information "Molding OK" corresponding to the abnormal information "Weight abnormality" acquired at the acquisition time "11:12" is "11:10", and the information processing device 20 identifies a predetermined time range (for example, 11:09 to 11:11) that includes the acquisition time "11:10". Of the operation information acquired from the extraction apparatus 14, the acquisition time of the operation information "Extraction OK" corresponding to the abnormal information "Weight abnormality" acquired at the acquisition time "11:12" is "11:11", and the information processing device 20 identifies a predetermined time range (for example, 11:10:30 to 11:11:30) that includes the acquisition time "11:11". 【0041】 Here, the predetermined time range is defined as the acquisition time of the corresponding operation information ± α. α (min) may be determined, for example, according to the time lag between the device that output the abnormal information and each other device. In this embodiment, α is half the time lag. That is, the further a device is from the device that output the abnormal information, the longer the predetermined time range is set. However, the method for setting the predetermined time range is not limited to the example described above, and the predetermined time range may be set longer for devices with longer intervals between outputting operation information. 【0042】 The information processing device 20 then displays, for example, the operation information notification screen shown in Figure 5 on the display 25 (S13). The operation information notification screen is a screen that lists the operation information of each device arranged in chronological order. More specifically, the operation information notification screen is a screen in which operation information acquired from each device at the same time is arranged in the same row (i.e., horizontally), and the operation information of each device is arranged in the same column (i.e., vertically) in descending order of acquisition time. 【0043】 Furthermore, the information processing device 20 displays the operation information of each device within a predetermined time range, as identified in step S12, in a different manner from other operation information. In this embodiment, an example of so-called "highlight display" is described, in which the character color and background color are inverted for the operation information within a predetermined time range and other operation information. However, the method of changing the display manner is not limited to the above example; the character color may be changed, or the operation information within a predetermined time range may be displayed blinking. 【0044】 On the other hand, if the information processing device 20 determines that no abnormal information is stored in the storage 23 (S11: No), it displays an operation information notification screen on the display 25 that unifies the display format of all operation information (S14). In other words, the operation information notification screens in steps S13 and S14 display the same information, but differ in their display format. The processing in steps S13 and S14 is an example of display processing. 【0045】 [Effects of the Embodiment] According to the above embodiment, by displaying the operation information acquired from each device constituting the molding system 10 in a time-series list, the operator can be given hints as to where in the molding process an abnormality is occurring. In other words, by looking at the highlighted portion of the operation information notification screen in Figure 5, the operator can identify the time period in which an abnormality may have occurred in each device. The operator can then refer to the records of each device during the identified time period (e.g., log data, alarm data, work log, etc.) to determine the detailed cause of the abnormality. This makes it easy to understand the operating status of the molding system 10. 【0046】 Furthermore, according to the above embodiment, as shown in Figure 5, by highlighting the operational information for a predetermined time range in which an abnormality is thought to have occurred in each device, the operator can easily identify the time period in which an abnormality may have occurred. In addition, by making the predetermined time range longer for devices that are farther away from the device that output the abnormality information, errors in the timing of the output of operational information can be absorbed. 【0047】 In particular, in the molding system 10, the detection accuracy of whether a molded product is good or not is higher in downstream devices. Also, in the drying device 11 and supply device 12 that perform batch processing, there is variation in the state of the resin supplied to the downstream devices, making it impossible to detect the state of all resins. Therefore, the present invention is very suitable for a molding system 10 that includes a device that performs batch processing. 【0048】 Furthermore, by outputting and comparing the operation information notification screen shown in Figure 5 for each line, the cause of the abnormality can be estimated even more easily. For example, if abnormality information is output from inspection device 15A, but not from inspection devices 15B and 15C, there is a high probability that the cause of the abnormality lies in the molding device 13A or the extraction device 14A. As another example, if abnormality information is output from inspection devices 15A and 15B, but not from inspection device 15C, there is a high probability that the cause of the abnormality lies in the supply device 12A. As yet another example, if abnormality information is output from inspection devices 15A, 15B, and 15C, there is a high probability that the cause of the abnormality lies in the drying device 11. 【0049】 In the above embodiment, an example was described in which abnormal information is output from the inspection device 15. However, it goes without saying that abnormal information is not limited to the inspection device 15, and may also be output from the drying device 11, supply device 12, molding device 13, and removal device 14. 【0050】 Furthermore, the method of displaying operation information on the operation information notification screen is not limited to the example in Figure 5. Figure 6 shows another example of the operation information notification screen. In the modified information processing device 20, in step S13 of Figure 4, the operation information notification screen shown in Figure 6 may be displayed on the display 25. In the operation information notification screen shown in Figure 6, the operation information for the drying device 11, the supply device 12, the molding device 13, the removal device 14, and the inspection device 15 is displayed, shifted in the time direction (i.e., vertical direction) according to the time lag information stored in the storage 23. 【0051】 In other words, the operation information notification screen shown in Figure 6 displays the operation information from Figure 3(B), specifically the operation information "Drying Complete" acquired from the drying device 11 at time "10:10", the operation information "Supply Complete" acquired from the supply device 12 at time "11:00", the operation information "Molding OK" acquired from the molding device 13 at time "11:10", the operation information "Removal OK" acquired from the removal device 14 at time "11:11", and the operation information "Weight Abnormal" acquired from the inspection device 15 at time "11:12", all arranged on the same line (i.e., horizontally). Note that only some of the operation information is illustrated in Figure 6. 【0052】 The embodiments described above are illustrative for explaining the present invention and are not intended to limit the scope of the invention to those embodiments only. Those skilled in the art can implement the present invention in various other forms without departing from the spirit of the invention. 【0053】 Furthermore, the program according to the present invention is not limited to a single program, but may be a collection of multiple programs. Also, the program according to the present invention is not limited to being executed on a single device, but may be executed by multiple devices in a shared manner. 【0054】 Furthermore, some or all of the means implemented by the program can also be implemented by hardware such as integrated circuits. Additionally, the program may be provided by being recorded on a non-transient recording medium readable by a computer. Recording mediums include, for example, hard disks, SD cards, DVDs, and servers on the internet. [Explanation of symbols] 【0055】 2...Communication network, 10...Molding system, 11...Drying equipment, 12A,12B...Supplying equipment, 13A,13B,13C...Molding equipment, 14A,14B,14C...Removal equipment, 15A,15B,15C...Inspection equipment, 20...Information processing equipment, 21...CPU, 22...Memory, 23...Storage, 24...Input device, 25...Display, 26...Communication interface, 27...Communication bus, 28...Program

Claims

[Claim 1] An information processing device connected to a molding system comprising: a molding apparatus that repeatedly performs a molding cycle in which molten resin is injected into a mold to form a molded product; a supply device that supplies the resin used in M ​​(M is an integer of 2 or more) times the molding cycle to the molding apparatus in a batch; a drying device that dries the resin used in M ​​× N (N is an integer of 2 or more) times the molding cycle and supplies it in a batch to the supply device; a removal device that removes the molded product from the molding apparatus after each molding cycle; and an inspection device that inspects the molded product removed by the removal device, An acquisition process that repeatedly acquires operational information of the drying apparatus, the supply apparatus, the molding apparatus, the removal apparatus, and the inspection apparatus at predetermined time intervals, An information processing apparatus characterized by performing a display process that arranges a plurality of operation information repeatedly acquired in the acquisition process in chronological order and displays them in a list on a display. [Claim 2] In the information processing apparatus according to claim 1, The system includes storage for storing the time lag of the operating timings of the drying apparatus, the supply apparatus, the molding apparatus, the removal apparatus, and the inspection apparatus. If abnormal information is included among the multiple pieces of operation information, a specific process is performed to identify a predetermined time range, including the acquisition time of the operation information corresponding to the abnormal information, from the operation information of a device upstream of the device that output the abnormal information in the molding process, according to the time lag stored in the storage. In the aforementioned display process, The operation information acquired simultaneously from the drying apparatus, the supply apparatus, the molding apparatus, the removal apparatus, and the inspection apparatus is displayed on the same line. An information processing device characterized by displaying the operation information included in the time range identified by the specified process in a manner different from other operation information. [Claim 3] In the information processing apparatus according to claim 2, An information processing device characterized in that, in the aforementioned specific processing, the further away a device is from the device that output the abnormal information, the longer the predetermined time range is. [Claim 4] In the information processing apparatus according to claim 1, The system includes storage for storing the time lag of the operating timings of the drying apparatus, the supply apparatus, the molding apparatus, the removal apparatus, and the inspection apparatus. An information processing device characterized in that, in the display process, the operation information of the drying device, the supply device, the molding device, the removal device, and the inspection device is displayed with a time shift according to the time lag stored in the storage.

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