Injection molding machine working mode monitoring method and device, terminal and medium

Abstract

The application discloses an injection molding machine working mode monitoring method and device, a terminal and a medium. The technical scheme provided by the application is based on the characteristics of the working process of the injection molding machine, signals output by a reserved production action signal output interface of the injection molding machine are collected, the high / low level polarity and the signal type of the effective signals are automatically judged, the working stages of the injection molding machine at different times are determined according to the duration of each production action signal and the interval time between the signals, the stage duration of different working stages is further determined, and the comparison condition of the preset stage duration deviation is combined to determine the working mode monitoring result of the injection molding machine based on the comparison result. The scheme provided by the application is a working mode monitoring method based on the action signals of the injection molding machine and independent of a data communication interface, and can realize the automatic monitoring of the working mode of the injection molding machine equipment without an open communication protocol, and is more suitable.

Description

Technical Field

[0001] This application relates to the field of industrial internet technology, and in particular to a method, device, terminal and medium for monitoring the working mode of an injection molding machine. Background Technology

[0002] Digital manufacturing is a production and manufacturing model centered on digital technology. With the continuous development of global manufacturing and the intensification of competition, manufacturing transformation and upgrading are becoming an urgent need for enterprise development. 5G+industrial internet technology and digital manufacturing management systems are increasingly being applied by enterprises. Production equipment management is an important component of intelligent manufacturing digital management systems. The real-time working status and working mode of equipment provide basic data for functions such as equipment health management, overall equipment efficiency (OEE) management, order scheduling and follow-up management.

[0003] In the injection molding industry, injection molding machines are diverse and often outdated, and most of them do not have open data communication interfaces. For older injection molding machines with closed communication protocols, traditional data acquisition methods based on communication protocols cannot achieve automated data acquisition and monitoring of the working modes of these machines, resulting in limited applicability and creating a bottleneck for the implementation of digital management systems for production in the injection molding industry. Summary of the Invention

[0004] This application provides a method, device, terminal, and medium for monitoring the working mode of an injection molding machine, which solves the technical problem of low applicability of existing methods for collecting the working mode of injection molding machines.

[0005] To address the aforementioned technical problems, the first aspect of this application provides a method for monitoring the operating mode of an injection molding machine, comprising:

[0006] Collect the production level signal output from the main control board of the injection molding machine, and determine the effective level polarity and signal type of the production level signal;

[0007] Based on the effective level polarity and signal type of the production level signal, the signal duration of the production level signal and the interval duration between different signals are determined, so as to determine each working stage within multiple production cycles of the injection molding machine based on the signal duration and the interval duration.

[0008] Based on the duration of each working stage and a preset stage duration deviation comparison condition, the working mode monitoring result of the injection molding machine is determined based on the comparison result.

[0009] Preferably, the production level signals include: mold closing signal, injection signal, and mold opening signal.

[0010] Preferably, the production level signals include: mold closing completion signal, injection signal, and mold opening completion signal.

[0011] Preferably, the step of determining the working mode monitoring result of the injection molding machine based on the comparison result, according to the duration of each working stage and in combination with preset stage duration deviation comparison conditions, specifically includes:

[0012] The duration of the injection and pick-up phases in several consecutive cycles was statistically analyzed.

[0013] When the duration deviation of a number of consecutive injection stages does not exceed the injection stage deviation threshold, and the duration deviation of a number of consecutive part removal stages does not exceed the part removal stage deviation threshold, the working mode of the injection molding machine is determined to be fully automatic mode.

[0014] When the duration deviation of the injection stage for several consecutive injection stages does not exceed the injection stage deviation threshold, but the duration deviation of the part removal stage for several consecutive part removal stages exceeds the part removal stage deviation threshold, the working mode of the injection molding machine is determined to be semi-automatic mode.

[0015] If the duration deviation of several consecutive injection stages exceeds the injection stage deviation threshold, the working mode of the injection molding machine is determined to be manual mode.

[0016] Preferably, the step of determining the working mode monitoring result of the injection molding machine based on the comparison result, according to the duration of each working stage and in combination with preset stage duration deviation comparison conditions, further includes:

[0017] If the waiting time from the end of any working stage to the start of the next working stage exceeds the waiting time threshold, the working mode of the injection molding machine is determined to be standby mode.

[0018] Preferably, after determining the various working stages within multiple production cycles of the injection molding machine, the method further includes:

[0019] When it is detected that the injection molding machine directly enters the mold opening stage after the mold closing stage, the working mode of the injection molding machine is determined to be the mold adjustment mode.

[0020] Preferably, it further includes:

[0021] When a power failure is detected in the injection molding machine, the machine is determined to be in shutdown mode.

[0022] Meanwhile, a second aspect of this application provides an injection molding machine operating mode monitoring device, comprising:

[0023] The production level signal acquisition unit is used to acquire the production level signal output by the injection molding machine main control board and determine the effective level polarity and signal type of the production level signal.

[0024] The working stage determination unit is used to determine the signal duration of the production level signal and the interval duration between different signals based on the effective level polarity and signal type of the production level signal, so as to determine each working stage within multiple production cycles of the injection molding machine based on the signal duration and the interval duration.

[0025] The working mode monitoring unit is used to determine the working mode monitoring result of the injection molding machine based on the duration of each working stage and a preset stage duration deviation comparison condition.

[0026] A third aspect of this application provides an injection molding machine operating mode monitoring terminal, including: a memory and a processor;

[0027] The memory is used to store program code corresponding to the injection molding machine working mode monitoring method provided in the first aspect of this application;

[0028] The processor is used to read and execute the program code.

[0029] The fourth aspect of this application provides a computer-readable storage medium storing program code corresponding to the injection molding machine operating mode monitoring method provided in the first aspect of this application.

[0030] As can be seen from the above technical solutions, this application has the following advantages:

[0031] Based on the characteristics of the injection molding machine's working process, the technical solution provided in this application collects signals output from the injection molding machine's reserved production action signal output interface, automatically determines the polarity and type of the valid high and low levels of the signals, and determines the working stages of the injection molding machine at different times based on the duration of each production action signal and the interval between signals. Then, based on the duration of each working stage and a preset stage duration deviation comparison condition, the working mode monitoring results of the injection molding machine are determined. The solution in this application provides a working mode monitoring method based on injection molding machine action signals that does not rely on data communication interfaces, enabling automated monitoring of the working modes of injection molding machine equipment without open communication protocols, thus having higher applicability. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1This is a flowchart illustrating an embodiment of a method for monitoring the working mode of an injection molding machine provided in this application.

[0034] Figure 2 A schematic diagram showing the connection relationship between the data acquisition device and the main control board port of the injection molding machine for the injection molding machine working mode monitoring method provided in this application.

[0035] Figure 3 This is a diagram showing the logical relationship between the main action signals and the production process during the working cycle of an injection molding machine.

[0036] Figure 4 This is a logic diagram showing the relationship between the mold opening and closing completion signals and the production process during the working cycle of an injection molding machine.

[0037] Figure 5 This is a schematic diagram of an embodiment of an injection molding machine working mode monitoring device provided in this application.

[0038] Figure 6 This is a schematic diagram of an embodiment of an injection molding machine working mode monitoring terminal provided in this application.

[0039] The reference numerals in the figures include:

[0040] 1. Injection molding machine main control board; 101. Signal output port; 2. Data acquisition device. Detailed Implementation

[0041] This application provides a method, device, terminal, and medium for monitoring the working mode of an injection molding machine, which addresses the technical problem of low applicability of existing methods for collecting the working mode of injection molding machines.

[0042] To make the inventive objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] First, a detailed description of an embodiment of the injection molding machine working mode monitoring method provided in this application is as follows:

[0044] Please see Figure 1 This embodiment provides a method for monitoring the working mode of an injection molding machine, including:

[0045] Step S1: Collect the production level signal output by the injection molding machine main control board and determine the effective level polarity and signal type of the production level signal;

[0046] It should be noted that all injection molding machines are designed with the needs of manufacturing enterprises for workshop automation in mind, so they all have reserved output interfaces for production action signals to output action signals to external automated equipment (such as robotic arms). Based on this, the production level signal output by the signal output port of the injection molding machine's main control board is collected by a data acquisition device.

[0047] Different brands and models of injection molding machines may have different polarities in the level of the valid output signal corresponding to their operating states. Some models output a high level signal when the machine is actively operating, while others output a low level. A high-level valid signal means that the corresponding signal port outputs a high-level signal when the injection molding machine performs a certain production action, and outputs a low level when the action is not performed or when the action ends. For example, a high-level valid mold closing signal outputs a high level (typically +24V) during mold closing and a low level (0V) when not performing the action. Conversely, a low-level valid signal means that the corresponding signal port outputs a low-level signal when the injection molding machine performs a certain production action, and outputs a high level when the action is not performed or when the action ends. For example, a low-level valid mold closing signal outputs a low level (0V) during mold closing and outputs a high level (+24V) when mold closing ends.

[0048] In actual injection molding, mold closing and mold opening are opposite actions. Since it's impossible to execute mold closing and mold opening simultaneously, the mold closing signal and mold opening signal cannot be valid at the same time. Similarly, the mold closing completion state and the mold opening completion state are states in two different spatial locations, and the mold closing completion signal and mold opening completion signal also cannot be valid simultaneously. Based on the above logical analysis, the method of this invention will... Figure 2 The input signals of DIN1 and DIN3 are subjected to an XOR logic operation, as shown in the following formula:

[0049]

[0050] In the formula, This indicates the input status of the DIN1 port signal. This refers to the input status of the DIN3 port signal. The input status value is either 0 or 1, where 1 indicates a valid input and 0 indicates an invalid input. According to the XOR operation rule, when D... c and D o If both values ​​are 0 or both are 1, F equals 0; otherwise, F equals 1.

[0051] The default high-level signal is a valid input signal.

[0052] When F equals 0, the determination of the high / low polarity of the valid input signal is triggered:

[0053] ①If D c D oA value of 0 indicates that all input signals are low, and both mold closing and mold opening are inactive states. This conforms to the actual working logic and the preset condition that a high level is a valid signal, and there is no need to adjust the polarity of the valid signal high / low level judgment.

[0054] ②If D c D o A value of 1 indicates that all input signals are at a high level, and both the mold opening signal and the mold closing signal are valid signals. This means that mold opening and closing operations are performed simultaneously, which does not conform to the actual working logic. Therefore, the preset high-level valid signal is incorrect. The algorithm automatically adjusts the valid signal judgment polarity to low-level valid signal (by inverting the preset valid signal judgment polarity).

[0055] When the preset valid input signal is active low, the identification and judgment method is the same as described above.

[0056] The mold closing completion state and the mold opening completion state are two mutually exclusive states. The validity judgment of the high and low level of the mold closing completion and mold opening completion signals is the same as that of the mold closing and mold opening signals.

[0057] Step S2: Based on the effective level polarity and signal type of the production level signal, determine the signal duration of the production level signal and the interval duration between different signals, so as to determine the working stages within multiple production cycles of the injection molding machine based on the signal duration and interval duration.

[0058] Production level signals represent key signals in the injection molding machine's production cycle. In this application, they are categorized into two types: action signals and status signals. For example, an action signal indicates that a certain action of the injection molding machine is being executed. When the action is executed, the corresponding signal port will output a valid signal. For instance, the mold closing signal: when the mold closing action is executed, the mold closing signal port will output a valid signal, indicating that the mold closing action is in progress; therefore, this signal is an action signal. Status signals indicate the state of the injection molding production process. When the injection molding machine is in that state, the corresponding signal port will output a valid signal. For example, the mold opening completion signal: when the mold opening reaches the preset mold opening termination position, the injection molding machine enters the mold opening completion state, and the signal output by the mold opening completion signal port at this time is the status signal.

[0059] More specifically, in this embodiment, the action signals of the injection molding machine are collected as production level signals, which may include: mold closing signal, injection signal and mold opening signal. For injection molding machines that do not provide mold closing and mold opening action signal outputs, this embodiment collects their status signals as production level signals, specifically including: mold closing completion signal, injection signal and mold opening completion signal.

[0060] It should be noted that the corresponding logic between the main action signals and the production process, as well as the corresponding logic between the mold opening and closing completion signals and the production process during the injection molding machine's work cycle, are as follows: Figure 3 and Figure 4 As shown, in normal production, the injection process always occurs after the mold closing process is completed.

[0061] Analyzing the action signals and the production process logic diagram, a valid injection signal is output only after a valid mold closing signal ends, indicating that the mold closing action and the injection action are executed sequentially, and there is no overlap in the valid parts of the two signals.

[0062] Analyzing the mold opening / closing completion signal and the production process logic diagram, when the mold closing completion outputs a valid signal, it indicates that the injection molding machine has entered the mold closing completion state, and the mold has reached the preset closing conditions. This state will be maintained until the mold opening action begins. During the period when the injection molding machine maintains the mold closing completion state, it will execute a series of production processes such as injection, pressure holding, melting, and cooling. The injection action is performed during the mold closing completion state; therefore, the valid injection signal and the mold closing completion signal have an overlap, and the start and end points of the injection signal are included within the range of the start and end points of the mold closing completion signal.

[0063] Based on the above analysis, for Figure 2 The DIN1 and DIN2 input signals are respectively set to D c D i For its signal input state, t c t i The duration of its effective signal. Continuously monitor a production cycle; if D occurs at any point within the production cycle... c D i The case where both are 1, and t c ≥t i This allows us to determine that the inputs to DIN1 and DIN3 are the mold closing completion signal and the mold opening completion status signal, respectively. Otherwise, the inputs to DIN1 and DIN3 are the mold closing signal and the mold opening action signal.

[0064] The working cycle of an injection molding machine can be divided into several stages, including mold closing, injection, mold opening, and part removal. This invention requires the identification of the mold closing, injection, mold opening, and part removal processes to collect data on the injection molding machine's working mode, and the measurement of the duration of each stage.

[0065] The specific details regarding each stage of the process are as follows:

[0066] 1. Mold closing process:

[0067] For applications that collect signals related to mold closing, injection, and mold opening, a mold closing process is defined as the period from the start of the mold closing action (signal input state changes from 0 to 1) to the end of the mold closing action (signal input state changes from 1 to 0). Figure 3 ;

[0068] For applications that collect signals for mold closing completion, injection, and mold opening completion, the period from the end of the mold opening completion signal (signal input state changes from 1 to 0) to the start of the mold closing completion signal (signal input state changes from 0 to 1) constitutes one mold closing process. Figure 4 .

[0069] The data acquisition algorithm starts timing from the beginning of the mold-closing process to the end of the process, recording the duration of the mold-closing process, i.e., the mold-closing duration T. c .

[0070] 2. Injection process:

[0071] The process of injection begins when the injection action starts (the signal input state changes from 0 to 1) and ends when the injection action ends (the signal input state changes from 1 to 0).

[0072] The data acquisition algorithm starts timing from the beginning of the injection process to the end of the injection process, recording the duration of the injection process, i.e., the injection duration T. i .

[0073] 3. Mold opening process:

[0074] For applications that collect signals for mold closing, injection, and mold opening, the process from the start of the mold opening action (signal input state changes from 0 to 1) to the end of the mold opening action (signal input state changes from 1 to 0) constitutes one mold opening process. Figure 3 ;

[0075] For applications that collect signals for mold closing completion, injection, and mold opening completion, the period from the end of the mold closing completion signal (signal input state changes from 1 to 0) to the start of the mold opening completion signal (signal input state changes from 0 to 1) constitutes one mold opening process. Figure 4 .

[0076] The data acquisition algorithm starts timing from the beginning of the mold-opening process to the end of the process, recording the duration of the mold-opening process, i.e., the mold-opening duration T. o .

[0077] 4. Pickup process:

[0078] The product removal process refers to the process in which the product has been plasticized and molded in the injection mold, the injection molding machine has opened the mold, and the product is removed from the mold by a person or a robot through a preset path and program, or the injection molding machine automatically ejects the product to remove it from the mold. It is the intermediate process between the completion of this mold opening and the start of the next mold closing.

[0079] For applications that collect signals for mold closing, injection, and mold opening, the period from the end of the mold opening action (signal input state changes from 1 to 0) to the start of the mold closing action (signal input state changes from 0 to 1) constitutes one part removal process, such as... Figure 3 ;

[0080] For applications that collect signals for mold closing completion, injection, and mold opening completion, the process from the start of the mold opening completion signal (signal input state changes from 0 to 1) to the end of the mold opening completion signal (signal input state changes from 1 to 0) constitutes one part removal process, such as... Figure 4 .

[0081] The data acquisition algorithm starts timing from the beginning of the pickup process to the end of the pickup process, recording the duration of the pickup process, i.e., the pickup time T. g .

[0082] It should be noted that injection molding production is a cyclical process, with the injection molding machine operating in a cyclical manner according to a preset workflow. In this invention, the start of mold closing is defined as the beginning of a production cycle, and the timing ends when the next mold closing begins. The total time used during this period is one production cycle T. p .

[0083] Step S3: Based on the duration of each working stage and the preset stage duration deviation comparison conditions, determine the working mode monitoring results of the injection molding machine based on the comparison results.

[0084] It should be noted that the analysis of the working modes of the injection molding machine is based on the working logic and the duration of each process. These modes mainly include manual mode, semi-automatic mode, and fully automatic mode.

[0085] Manual mode refers to a work mode in which all production actions of the injection molding machine are manually operated by the operator in each molding cycle. This is mainly manifested in larger deviations in the duration control of the same actions across different molding cycles, especially the deviation in injection time, which has a significant impact on product quality.

[0086] Semi-automatic mode refers to a work mode in which the operator needs to manually complete certain specific steps in each molding cycle, while the rest is completed automatically by the machine. Actions such as closing the safety door, closing the mold, and removing the part are performed automatically, but the main injection molding process is completed automatically by the injection molding machine. Manual part removal is a common operation in semi-automatic mode.

[0087] Fully Automatic Mode: Fully automatic mode refers to a working mode in which all actions in the entire injection molding production process are completed automatically by machines without human intervention. Fully automatic mode includes not only the automation of the injection molding process, but also the automation of the part removal process.

[0088] In this embodiment, based on the duration of each working stage recorded in step S3 and combined with preset stage duration deviation comparison conditions, the deviation of the duration of each working stage or certain key working nodes within multiple production cycles is determined to determine the working mode monitoring result of the injection molding machine. For example, if the duration deviation of each working stage of the injection molding machine in multiple production cycles is less than a preset threshold, the working mode of the injection molding machine can be determined to be fully automatic. If the duration deviation of certain specific working stages is less than the preset threshold, but at the same time the duration deviation of certain specific working stages exceeds the preset threshold, the working mode of the injection molding machine can be determined to be semi-automatic. If the duration deviation of multiple working stages exceeds the preset threshold, the working mode of the injection molding machine can be determined to be manual.

[0089] More specifically, the stability of the injection stage duration is a crucial parameter reflecting product quality stability and can be preferentially used as a primary criterion. Under stable production conditions in automatic mode (including semi-automatic and fully automatic), the deviation in injection duration between consecutive molded cycles is typically controlled within ±1% to ±5%, while in manual mode it generally exceeds ±10%. Therefore, the comparison deviation of injection duration between consecutive molded cycles can serve as a basis for determining whether a mode is manual or automatic (including semi-automatic and fully automatic). The method in this embodiment can monitor the injection duration of each molding process and compare the injection duration of the current molded cycle with that of the previous molded cycle. If the comparison deviation exceeds ±10% for n consecutive monitoring cycles, it is determined to be manual mode; otherwise, it is automatic mode (semi-automatic or fully automatic).

[0090] In fully automatic mode, after mold opening, the product is removed by a robotic arm or automatically ejected from the mold by the injection molding machine, and then the mold is immediately closed for the next production cycle. In this mode, the automatic part removal time deviation between consecutive mold cycles is usually no more than 0.3 seconds, while it is difficult to control the time deviation between consecutive mold cycles within 0.5 seconds for n consecutive mold cycles when manually removing parts. Therefore, the automatic or manual part removal mode can be determined by monitoring the time deviation of n consecutive part removal cycles. If the time deviation of n consecutive part removal cycles exceeds 0.5 seconds, it is judged as semi-automatic mode; otherwise, it is fully automatic mode. Here, n is greater than or equal to 2, and the preferred value is 3.

[0091] The operating modes of an injection molding machine can also include: shutdown, standby, and mold adjustment. Therefore, the injection molding machine operating mode monitoring method provided in this application can further include:

[0092] In some embodiments, the method further includes the following steps prior to step S1:

[0093] When a power outage is detected in the injection molding machine, the machine's operating mode is determined to be shutdown mode.

[0094] The signal acquisition device mentioned in this application can be powered by the 24V DC power supply inside the injection molding machine, which facilitates on-site installation of the acquisition device. The acquisition device is internally designed with a supercapacitor; when the injection molding machine is powered off and stopped, the supercapacitor can provide power to the acquisition device for tens of seconds, allowing the acquisition device to save current working data and send shutdown mode information.

[0095] In some embodiments, step S4 of this embodiment may further include:

[0096] If the waiting time from the end of any working stage to the start of the next working stage exceeds the waiting time threshold, the working mode of the injection molding machine is determined to be standby mode.

[0097] It should be noted that when the injection molding machine is powered on, it enters standby mode by default;

[0098] During normal production (manual, semi-automatic, fully automatic), when an injection molding machine finishes an action and waits for the next action to complete, if the waiting time exceeds a set threshold, the machine enters standby mode. In this embodiment, the waiting time threshold can be three times the average waiting time over the previous three production cycles, and can be expressed as:

[0099]

[0100] In the formula, The duration for waiting for the next action after the current action has ended. This is the average waiting time over the previous three production cycles.

[0101] For example Figure 3 In the process of waiting for the injection process to begin after the mold closing process is completed, if the waiting time exceeds three times the average time between the mold closing process and the injection process in the previous three production cycles, the injection molding machine is judged to have entered standby mode.

[0102] In some embodiments, the method further includes the following after step S3:

[0103] When it is detected that the injection molding machine directly enters the mold opening stage after the mold closing stage, the working mode of the injection molding machine is determined to be the mold adjustment mode.

[0104] It should be noted that if the mold closing process is detected but the injection process is not detected, and the mold opening process is directly entered, then the current state is determined to be mold adjustment mode. Furthermore, in order to reduce the probability of false judgment, it can be further set that after two consecutive detections of the mold closing process, the injection process is not detected and the mold opening process is directly entered, then the current state is determined to be mold adjustment mode.

[0105] In mold adjustment mode, if there is no next action after a certain period of time after a certain action is completed, it is determined that the injection molding machine has entered standby mode. The waiting time here can be set to 2 minutes.

[0106] The above is a detailed description of an embodiment of a method for monitoring the working mode of an injection molding machine provided in this application. The following is a detailed description of an embodiment of a device for monitoring the working mode of an injection molding machine provided in this application.

[0107] Please see Figure 5 This embodiment provides a device for monitoring the working mode of an injection molding machine, comprising:

[0108] The production level signal acquisition unit M1 is used to acquire the production level signal output by the injection molding machine main control board and determine the effective level polarity and signal type of the production level signal.

[0109] The working stage determination unit M2 is used to determine the working stages within multiple production cycles of the injection molding machine based on the signal duration and interval duration of the collected production level signals.

[0110] The working mode monitoring unit M3 is used to determine the working mode monitoring result of the injection molding machine based on the duration of each working stage and the preset stage duration deviation comparison conditions.

[0111] In addition to the above-described embodiments of the injection molding machine operating mode monitoring device, this application also provides a detailed description of embodiments such as an injection molding machine operating mode monitoring terminal and a computer-readable storage medium, as follows:

[0112] like Figure 6 As shown, this application provides an embodiment of an injection molding machine working mode monitoring terminal. The types of terminals include, but are not limited to, personal computers, industrial computers, servers, and embedded intelligent devices. The terminal consists of a memory 33 and a processor 31, which can be connected via a communication bus 34.

[0113] The memory is used to store program code corresponding to the injection molding machine operating mode monitoring method mentioned in the above embodiments;

[0114] The processor is used to read and execute the program code, thereby implementing the injection molding machine operating mode monitoring method mentioned in the above embodiments.

[0115] This application provides an embodiment of a computer-readable storage medium, which stores program code corresponding to the injection molding machine operating mode monitoring method mentioned in the above embodiments.

[0116] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the terminals, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0117] In the several embodiments provided in this application, it should be understood that the disclosed terminals, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between devices or units through some interfaces, and may be electrical, mechanical, or other forms.

[0118] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0119] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0120] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0121] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0122] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0123] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A method of monitoring the operating mode of an injection molding machine, characterized by, include: Collect the production level signal output from the main control board of the injection molding machine, and determine the effective level polarity and signal type of the production level signal; Based on the effective level polarity and signal type of the production level signal, the signal duration of the production level signal and the interval duration between different signals are determined, so as to determine each working stage within multiple production cycles of the injection molding machine based on the signal duration and the interval duration. Based on the duration of each working stage and the preset stage duration deviation comparison conditions, the working mode monitoring result of the injection molding machine is determined based on the comparison results. Specifically, determining the working mode monitoring result of the injection molding machine based on the comparison results, according to the duration of each working stage and a preset stage duration deviation comparison condition, includes: The duration of the injection and pick-up phases in several consecutive cycles was statistically analyzed. When the duration deviation of a number of consecutive injection stages does not exceed the injection stage deviation threshold, and the duration deviation of a number of consecutive part removal stages does not exceed the part removal stage deviation threshold, the working mode of the injection molding machine is determined to be fully automatic mode. When the duration deviation of the injection stage for several consecutive injection stages does not exceed the injection stage deviation threshold, but the duration deviation of the part removal stage for several consecutive part removal stages exceeds the part removal stage deviation threshold, the working mode of the injection molding machine is determined to be semi-automatic mode. If the duration deviation of several consecutive injection stages exceeds the injection stage deviation threshold, the working mode of the injection molding machine is determined to be manual mode.

2. The method of claim 1, wherein The production level signals include: mold closing signal, injection signal, and mold opening signal.

3. The method of claim 1, wherein The production level signals include: mold closing completion signal, injection signal, and mold opening completion signal.

4. The method of claim 1, wherein The step of determining the working mode monitoring result of the injection molding machine based on the comparison results, according to the duration of each working stage and in conjunction with preset stage duration deviation comparison conditions, further includes: If the waiting time from the end of any working stage to the start of the next working stage exceeds the waiting time threshold, the working mode of the injection molding machine is determined to be standby mode.

5. The method of claim 4, wherein, After determining the various working stages within multiple production cycles of the injection molding machine, the process also includes: When it is detected that the injection molding machine directly enters the mold opening stage after the mold closing stage, the working mode of the injection molding machine is determined to be the mold adjustment mode.

6. The method of claim 5, wherein, Also includes: When a power failure is detected in the injection molding machine, the machine is determined to be in shutdown mode.

7. An injection molding machine operating mode monitoring device characterized by, The method for monitoring the operating mode of an injection molding machine as described in any one of claims 1 to 6 includes: The production level signal acquisition unit is used to acquire the production level signal output by the injection molding machine main control board and determine the effective level polarity and signal type of the production level signal. The working stage determination unit is used to determine the signal duration of the production level signal and the interval duration between different signals based on the effective level polarity and signal type of the production level signal, so as to determine each working stage within multiple production cycles of the injection molding machine based on the signal duration and the interval duration. The working mode monitoring unit is used to determine the working mode monitoring result of the injection molding machine based on the duration of each working stage and a preset stage duration deviation comparison condition.

8. An injection molding machine operating mode monitoring terminal, characterized by, include: Memory and processor; The memory is used to store program code corresponding to the injection molding machine working mode monitoring method as described in any one of claims 1 to 6; The processor is used to read and execute the program code.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium contains program code corresponding to the injection molding machine operating mode monitoring method as described in any one of claims 1 to 6.

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