On-off detection method and detection device of mold and computer readable storage medium

Abstract

The invention discloses an on-off detection method and device of a mold and a computer readable storage medium, the mold comprises a water inlet and a water outlet, the water inlet and the water outlet are communicated through at least one pipeline, and the method comprises the steps that the temperature of a medium in the pipeline is adjusted; under the condition that the temperature of the medium reaches a preset temperature threshold value, temperature image information of all the pipelines is obtained; and determining the on-off condition of each pipeline according to the temperature image information. The detection method can quickly and accurately judge whether the waterway in the mold is smooth or not, and the method is high in efficiency, accurate, free of damage, wide in application range and wide in application prospect.

Description

Technical Field

[0001] The present application relates to the technical field of mold detection, and in particular to a mold on-off detection method, a computer-readable storage medium, and a mold on-off detection device. Background Art

[0002] The mold is the mother of the manufacturing industry. Due to the structural strength design requirements of the product, the corresponding mold insert has a complex deep cavity structure. The thermal effect of the mold insert is prominent, which is not conducive to sequential solidification. In order to achieve sufficient cooling of the deep cavity structure, it is necessary to design a complex conformal water cooling pipeline. For this reason, the mold is mostly manufactured using the Selective Laser Melting (SLM) technology. The internal conformal water channel fits the shape of the mold surface. The water channels of various shapes, diameters, and lengths are distributed in large quantities inside the mold, which can increase the cooling speed of the die-casting mold and further improve the production quality and efficiency of the die-casting products. Therefore, SLM technology has been widely used in the preparation of die-casting molds for large-size aluminum alloy parts in recent years.

[0003] The large-size die-casting mold inserts formed by SLM have complex conformal cooling water channels inside. In order to better meet the mold assembly space requirements, the cooling water is mostly distributed in parallel, and multiple internal water channels often flow through a pair of water inlets and outlets. Since SLM technology is formed by metal powder accumulation, there will be metal powder residue in the water channel, which will often accumulate again due to the entry of cutting fluid, processing debris, etc., causing pipeline blockage. Therefore, how to ensure the smooth flow of water channels inside the die-casting mold formed by SLM is very critical.

[0004] The high-pressure gas blowing method is currently the main method for removing powder from internal water channels. Metal powder in a single water channel can be effectively blown away by high-pressure gas. Generally, the water channel blockage can be determined by calculating the air flow at the water channel inlet and outlet. However, due to the complex internal parallel water channel distribution, the water channel diameter becomes thicker and the path becomes larger. It is impossible to simply determine whether each water channel is completely unobstructed by the air flow. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the present application is to propose a mold on-off detection method, adjust the temperature of the medium in the pipeline, obtain the temperature image information of all pipelines when the temperature of the medium reaches a preset temperature threshold, determine the on-off status of each pipeline based on the temperature image information, thereby being able to quickly and accurately determine whether the water channel inside the mold is unobstructed. The method is efficient, accurate, non-destructive, and has a wide range of applications, and has broad application prospects.

[0006] A second object of the present application is to provide a computer-readable storage medium.

[0007] The third objective of the present application is to provide a mold on-off detection device.

[0008] To achieve the above-mentioned purpose, the first aspect of the present application proposes a method for detecting the on / off status of a mold, wherein the mold comprises a water inlet and a water outlet, and the water inlet and the water outlet are connected by at least one pipeline, and the method comprises: adjusting the temperature of the medium in the pipeline; when the temperature of the medium reaches a preset temperature threshold, obtaining temperature image information of all the pipelines; and determining the on / off status of each of the pipelines based on the temperature image information.

[0009] According to the mold continuity detection method of the embodiment of the present application, the temperature of the medium in the pipeline is adjusted, and when the temperature of the medium reaches the preset temperature threshold, the temperature image information of all pipelines is obtained, and the continuity of each pipeline is determined based on the temperature image information. Therefore, the method can quickly and accurately determine whether the water channel inside the mold is unobstructed. The method is efficient, accurate, non-destructive, and has a wide range of applications, and has broad application prospects.

[0010] In addition, the mold on / off detection method according to the above embodiment of the present application may also have the following additional technical features:

[0011] According to an embodiment of the present application, the adjusting the temperature of the medium in the pipeline includes: increasing the temperature of the medium in the pipeline.

[0012] According to an embodiment of the present application, the adjusting the temperature of the medium in the pipeline further includes: lowering the temperature of the medium in the pipeline.

[0013] According to one embodiment of the present application, obtaining the temperature image information of all the pipelines includes: determining the infrared radiation image of the mold based on an infrared imager to obtain the temperature image information based on the infrared radiation image, wherein the temperature image information includes temperature distribution data of all the pipelines.

[0014] According to an embodiment of the present application, the method further includes: filtering, denoising and histogram equalization processing the infrared radiation image.

[0015] According to an embodiment of the present application, the method further includes: segmenting the processed infrared radiation image to obtain temperature distribution data of the medium in the pipeline.

[0016] According to an embodiment of the present application, determining the on-off status of each of the pipelines based on the temperature image information includes: when the temperature of the medium in the pipeline rises to a first preset temperature threshold, obtaining a first temperature difference between the first preset temperature threshold and the temperature of the medium in the multiple pipelines; when the first temperature difference is within a first preset temperature difference range, determining that the corresponding pipeline is in an on-state; when the first temperature difference is not within the first preset temperature difference range, determining that the corresponding pipeline is in a blocked state.

[0017] According to one embodiment of the present application, determining the on-off status of each of the pipelines based on the temperature image information includes: when the temperature of the medium in the pipeline drops to a second preset temperature threshold, obtaining a second temperature difference between the medium temperature in multiple pipelines and the second preset temperature threshold; when the second temperature difference is within a second preset temperature difference range, determining that the corresponding pipeline is in a pass state; when the second temperature difference is not within the second preset temperature difference range, determining that the corresponding pipeline is in a blocked state.

[0018] To achieve the above-mentioned purpose, a second aspect of the present application proposes a computer-readable storage medium having a program stored thereon, which implements the above-mentioned mold on-off detection method when executed by a processor.

[0019] According to the computer-readable storage medium of the embodiment of the present application, by implementing the above-mentioned mold on-off detection method during execution, it is possible to quickly and accurately determine whether the water channel inside the mold is unobstructed. This method is efficient, accurate, non-destructive, has a wide range of applications, and has broad application prospects.

[0020] To achieve the above-mentioned purpose, the third embodiment of the present application proposes a mold on-off detection device, wherein the mold includes a water inlet and a water outlet, and the water inlet and the water outlet are connected by at least one pipeline, and the device includes: a mold temperature controller, used to adjust the temperature of the medium in the pipeline; an infrared thermal imager, used to obtain temperature image information of all the pipelines when the temperature of the medium reaches a preset temperature threshold; and a data processor, used to determine the on-off status of each of the pipelines based on the temperature image information.

[0021] According to the mold on-off detection device of the embodiment of the present application, the mold temperature controller is used to adjust the temperature of the medium in the pipeline, the infrared thermal imager is used to obtain the temperature image information of all pipelines when the temperature of the medium reaches the preset temperature threshold, and the data processor is used to determine the on-off status of each pipeline according to the temperature image information. Therefore, the device can quickly and accurately determine whether the water channel inside the mold is unobstructed. The method is efficient, accurate, non-destructive, and has a wide range of applications, and has broad application prospects.

[0022] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a flow chart of a mold on-off detection method according to an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the internal conformal cooling pipeline of a mold insert manufactured by SLM according to an embodiment of the present application;

[0025] Figure 3 It is a flow chart of a mold on-off detection method according to a specific example of the present application;

[0026] Figure 4 It is a block diagram of a mold on-off detection device according to an embodiment of the present application.

[0027] Among them, 100 is a mold on-off detection device; 110 is a mold temperature controller; 120 is an infrared thermal imager; and 130 is a data processor. DETAILED DESCRIPTION

[0028] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0029] The following describes a mold on-off detection method, a computer-readable storage medium, and a mold on-off detection device proposed in embodiments of the present application with reference to the accompanying drawings.

[0030] Figure 1 Flow chart of a mold on-off detection method according to an embodiment of the present application.

[0031] like Figure 1 As shown, the on-off detection method of the mold in the embodiment of the present application may include the following steps:

[0032] S1, adjust the temperature of the medium in the pipeline.

[0033] S2, when the temperature of the medium reaches a preset temperature threshold, obtaining temperature image information of all pipelines, wherein the preset temperature threshold can be determined according to actual conditions.

[0034] S3, determining the on / off status of each pipeline according to the temperature image information.

[0035] Specifically, in an embodiment of the present application, the mold package has a water inlet and a water outlet, and the water inlet and the water outlet are connected by at least one pipeline, for example, Figure 2 As shown, there are multiple pipes connecting 1-water inlet and 2-water outlet, that is, the SLM-molded die-casting mold insert adopts a single water inlet and outlet, and the interior is a multi-way parallel structure. During the production of the mold insert, high-pressure gas is generally used to remove the residual powder in the mold water pipeline. However, since the channel for gas escape is freely selected, there is no good way to determine whether each pipeline of the internally marked water inlets 1-1, 1-2, and return ports 2-1, 2-2 is completely unobstructed. If a water channel is blocked, it will affect the cooling effect of the entire part.

[0036] Therefore, in order to accurately determine the on-off status of each pipeline, the temperature of the medium in the pipeline can be adjusted first. For example, the medium (such as water or oil) in the pipeline inside the mold can be heated or cooled by connecting the mold to a mold temperature controller or other heating / cooling system to generate sufficient temperature differences in the pipelines inside the mold. After adjusting the temperature of the medium in the pipeline, the temperature of the medium is judged. When the temperature of the medium reaches the preset temperature threshold, the temperature image information of all pipelines can be obtained. For example, when the temperature of the medium in the pipeline is heated, the preset threshold can be a temperature value between 200 and 250°C, that is, too high a temperature will cause the evaporation of the medium, and too low a temperature will cause the temperature change effect to be unclear. When the temperature of the medium reaches the preset temperature threshold, such as 220 degrees Celsius, the mold surface can be scanned by an infrared thermal imager to record the temperature image. In addition, the mold can be infrared imaged from different angles to obtain more comprehensive temperature distribution information.

[0037] After obtaining the temperature image information of all pipelines, the on-off status of each pipeline can be determined based on the temperature image information. For example, the image collected by the infrared thermal imager can be transmitted to the data processing system, and the image processing algorithm can be used for analysis to identify the on-off status of the waterway, such as by comparing the temperature difference between the inlet and outlet of the pipeline. If the temperature difference is significant, the pipeline is considered to be unobstructed; if the temperature difference is small or there is no temperature difference, there may be a blockage. Or compare the temperature difference between multiple pipelines inside the mold. If the temperature of the medium in a certain pipeline is significantly lower than the temperature of the medium in other pipelines, it means that the pipeline is blocked. It should be noted that the influence of factors such as ambient temperature and humidity on infrared imaging can also be considered, and corresponding corrections can be made to improve the accuracy of the detection results.

[0038] Therefore, it is possible to quickly and accurately determine whether the water channel inside the mold is unobstructed. This method is efficient, accurate, non-destructive, has a wide range of applications, and has broad application prospects.

[0039] According to an embodiment of the present application, adjusting the temperature of the medium in the pipeline includes: increasing the temperature of the medium in the pipeline.

[0040] Specifically, when adjusting the temperature of the medium in the pipeline, the temperature of the medium in the pipeline can be increased and adjusted. That is, by increasing the temperature of the medium, a sufficient temperature difference is generated so that the infrared imager can clearly capture the temperature distribution of the water channel inside the mold, that is, by heating, the temperature of the medium (such as water or oil) in the pipeline is increased, thereby forming a clear temperature gradient between the unobstructed and blocked parts of the pipeline. Specifically, the mold can be connected to the mold temperature controller or other heating system through a pipeline to form a closed loop. According to the mold material and water channel design, the appropriate heating temperature and heating rate are set, the heating system is turned on, and the water channel medium inside the mold is heated. During the heating process, the medium can be allowed to circulate in the pipeline to improve the heat transfer efficiency and temperature uniformity. In addition, during the heating process, multiple temperature gradients can be used for heating to more carefully detect the patency of the pipeline. For example, the temperature can be first raised to 150°C, then to 200°C, and finally to 250°C. In addition, during the heating process, appropriate safety measures can be taken, such as using insulation materials and setting overheating protection devices, to prevent operator injury or equipment damage.

[0041] According to another embodiment of the present application, adjusting the temperature of the medium in the pipeline further includes: lowering the temperature of the medium in the pipeline.

[0042] Specifically, when adjusting the temperature of the medium in the pipeline, the temperature of the medium in the pipeline can be adjusted to be lowered. That is, by lowering the temperature of the medium in the pipeline to generate a temperature gradient, the infrared imager can capture the thermal image of the pipeline, thereby analyzing the integrity of the pipeline. For example, the mold can be connected to a cooling system (such as a chiller) through a pipeline to form a closed loop, and according to the mold material and pipeline design, the appropriate cooling temperature and cooling rate are set, and the cooling system is turned on to cool the pipeline medium inside the mold. It should be noted that the cooling temperature should be set below the ambient temperature to ensure that the temperature of the pipeline medium is significantly lower than the surrounding environment.

[0043] According to one embodiment of the present application, obtaining temperature image information of all pipelines includes: determining an infrared radiation image of a mold based on an infrared imager to obtain temperature image information based on the infrared radiation image, wherein the temperature image information includes temperature distribution data of all pipelines.

[0044] Specifically, after the mold is heated or cooled to a preset temperature, the temperature image information of all pipelines can be obtained. That is, the mold surface can be scanned using an infrared imager to capture infrared radiation images, and the mold can be scanned from different angles to obtain more comprehensive thermal distribution information. During the scanning process, ensure that the infrared imager can cover all key areas of the mold, including the inlets and outlets of all pipelines. After determining the infrared radiation image, temperature image information can be obtained based on the infrared radiation image. Infrared imagers are usually able to convert captured infrared radiation images into temperature images, and by analyzing the thermal radiation intensity in the image, the temperature of the corresponding area is calculated, thereby recording the temperature distribution data of all pipelines. These data are usually displayed in the form of a heat map, and color changes represent temperature differences.

[0045] According to an embodiment of the present application, the mold on-off detection method further includes: filtering, denoising and histogram equalization processing of the infrared radiation image.

[0046] Specifically, after acquiring the infrared radiation image, the infrared radiation image can be filtered, denoised, and histogram equalized to improve the image quality and make the subsequent temperature analysis more accurate. For example, filtering is to eliminate noise and other unnecessary signals in the image and improve the clarity and quality of the image. According to the noise characteristics of the image, a suitable filter, such as a Gaussian filter, a median filter, etc., can be selected and applied to the infrared radiation image to smooth the image and reduce noise.

[0047] Denoising is to remove random noise in the image, which may interfere with temperature analysis. For example, the type of noise in the image, such as Gaussian noise, salt and pepper noise, etc., can be determined. According to the noise type, a suitable denoising algorithm can be selected, such as Wiener filtering, wavelet denoising, etc., to denoise the infrared radiation image.

[0048] Histogram equalization is to enhance the contrast of the image, making the brightness distribution in the image more uniform, which helps to show the temperature difference more clearly. For example, the number of pixels of each brightness value in the image can be counted, the cumulative distribution function can be calculated according to the histogram, and the original image can be mapped using the cumulative distribution function to generate an equalized image. Therefore, through these image preprocessing steps, the quality of infrared radiation images can be significantly improved, providing more accurate data for subsequent temperature analysis and judgment of the on-off status of the water channel inside the mold.

[0049] According to an embodiment of the present application, the mold on-off detection method further includes: segmenting the processed infrared radiation image to obtain temperature distribution data of the medium in the pipeline.

[0050] Specifically, after the infrared radiation image is processed, the processed infrared radiation image can also be segmented to obtain the temperature distribution data of the medium in the pipeline. That is, segmentation is a key step in extracting the temperature distribution data of the medium in the pipeline. The purpose of image segmentation is to separate the pipeline area in the image from other background areas, so as to facilitate the analysis and identification of the on-off state of the waterway. For example, according to the characteristics and needs of the image, a suitable image segmentation method is selected, such as threshold segmentation, edge detection, region growing, machine learning algorithm, etc., and the selected segmentation algorithm is applied to the processed infrared radiation image to identify and separate the pipeline area, and the segmentation result can be post-processed, such as removing small objects, filling holes, smoothing boundaries, etc., to improve the accuracy of segmentation. Therefore, through image segmentation, the temperature distribution data of the medium in the pipeline can be extracted from the processed infrared radiation image, providing accurate data support for further analysis of the on-off state of the waterway inside the mold.

[0051] According to an embodiment of the present application, the on-off status of each pipeline is determined based on the temperature image information, including: when the temperature of the medium in the pipeline rises to the first preset temperature threshold, obtaining the first temperature difference between the first preset temperature threshold and the temperature of the medium in multiple pipelines; when the first temperature difference is within the first preset temperature difference range, determining that the corresponding pipeline is in a pass state; when the first temperature difference is not within the first preset temperature difference range, determining that the corresponding pipeline is in a blocked state. The first preset temperature threshold and the first preset temperature difference range can be determined according to actual conditions.

[0052] Specifically, when determining the on-off status of each pipeline according to the temperature image information, the temperature of the medium in each pipeline can be determined according to the image information. After determining the temperature of the medium in the pipeline, the temperature of the medium is judged. When the temperature of the medium in the pipeline rises to the first preset temperature threshold, the temperature of the medium in each pipeline is detected. And for each pipeline, the first temperature difference between its medium temperature and the first preset temperature threshold is calculated. The calculated first temperature difference is compared with the first preset temperature difference range. If the first temperature difference is within the first preset temperature difference range, it means that the temperature of the medium in the current pipeline has been increased, and it is considered that the corresponding pipeline is in a pass state. If the first temperature difference is not within the first preset temperature difference range, it means that there is a medium whose temperature has not risen in the current pipeline, and it is considered that the corresponding pipeline may be in a blocked state. In addition, the temperature difference and pipeline status information are intuitively displayed through charts or color coding, which is convenient for operators to quickly identify and respond. It should be noted that the first preset temperature difference range is determined based on influencing factors such as ambient temperature, pipeline material and medium.

[0053] For example, the first preset temperature threshold is 230 degrees Celsius, and the first preset temperature difference range is -10 degrees Celsius to +10 degrees Celsius. After the temperature of the medium in the pipeline is raised to 230 degrees Celsius, the specific temperature of the medium in each pipeline can be obtained. If the temperature of the medium in the pipeline is 80 degrees Celsius, which is 150 degrees Celsius from the first preset temperature threshold, and is not within the first preset temperature difference range, it means that the pipeline may be blocked and the high-temperature medium in other pipelines has not entered the pipeline. Therefore, it can be determined that the pipeline section is blocked.

[0054] According to an embodiment of the present application, the on-off status of each pipeline is determined based on the temperature image information, including: when the temperature of the medium in the pipeline drops to the second preset temperature threshold, obtaining the second temperature difference between the medium temperature in multiple pipelines and the second preset temperature threshold; when the second temperature difference is within the second preset temperature difference range, determining that the corresponding pipeline is in a pass state; when the second temperature difference is not within the second preset temperature difference range, determining that the corresponding pipeline is in a blocked state. The second preset temperature threshold and the second preset temperature difference range can be determined according to actual conditions.

[0055] Specifically, when determining the on-off status of each pipeline according to the temperature image information, the temperature of the medium in each pipeline can be determined according to the image information. After determining the temperature of the medium in the pipeline, the temperature of the medium is judged. When the temperature of the medium in the pipeline drops to the second preset temperature threshold, the temperature of the medium in each pipeline is detected. And for each pipeline, the second temperature difference between its medium temperature and the second preset temperature threshold is calculated. The calculated second temperature difference is compared with the second preset temperature difference range. If the second temperature difference is within the second preset temperature difference range, it means that the temperature of the medium in the current pipeline has been reduced, and the corresponding pipeline is considered to be in a pass state. If the second temperature difference is not within the second preset temperature difference range, it means that there is a medium whose temperature has not been reduced in the current pipeline, and the corresponding pipeline is considered to be in a blocked state. In addition, the temperature difference and pipeline status information are intuitively displayed through charts or color coding, which is convenient for operators to quickly identify and respond. It should be noted that the second preset temperature difference range is determined based on influencing factors such as ambient temperature, pipeline material and medium.

[0056] For example, the second preset temperature threshold is 5 degrees Celsius, and the second preset temperature difference range is 0 degrees Celsius to 10 degrees Celsius. After the temperature of the medium in the pipeline is reduced to 5 degrees Celsius, the specific temperature of the medium in each pipeline can be obtained. If the temperature of the medium in the pipeline is 30 degrees Celsius, which is not within the second preset temperature difference range and the second preset temperature threshold is 25 degrees Celsius, it means that the pipeline may be blocked and the low-temperature medium in other pipelines has not entered the pipeline. Therefore, it can be determined that the pipeline section is blocked.

[0057] Combine the following Figure 3 To describe the detection method of the present application.

[0058] As a specific example, taking the method of determining the on-off status by increasing the temperature of the medium as an example, the on-off detection method of the mold of the present application may include the following steps:

[0059] S101, raising and adjusting the temperature of the medium in the pipeline.

[0060] S102, determine whether the temperature of the medium reaches a preset temperature threshold. If yes, execute step S103; if no, execute step S101.

[0061] S103, determining an infrared radiation image of the mold based on an infrared imager.

[0062] S104, filtering, denoising and histogram equalization processing are performed on the infrared radiation image.

[0063] S105, segmenting the processed infrared radiation image to obtain temperature distribution data of the medium in the pipeline.

[0064] S106: Obtain a first temperature difference between a first preset temperature threshold and the temperature of the medium in the plurality of pipelines.

[0065] S107, determining whether the first temperature difference is within a first preset temperature difference range. If yes, executing step S108; if no, executing step S109.

[0066] S108, determining that the corresponding pipeline is in a passage state.

[0067] S109, determining that the corresponding pipeline is in a blocked state.

[0068] In summary, according to the mold continuity detection method of the embodiment of the present application, the temperature of the medium in the pipeline is adjusted, and when the temperature of the medium reaches the preset temperature threshold, the temperature image information of all pipelines is obtained, and the continuity of each pipeline is determined according to the temperature image information. Therefore, the method can quickly and accurately determine whether the water channel inside the mold is unobstructed. The method is efficient, accurate, non-destructive, and has a wide range of applications, and has broad application prospects.

[0069] Corresponding to the above embodiments, the present application also proposes a computer-readable storage medium.

[0070] The computer-readable storage medium of the embodiment of the present application stores a program, which, when executed by a processor, implements the above-mentioned mold on-off detection method.

[0071] According to the computer-readable storage medium of the embodiment of the present application, by executing the above-mentioned mold on-off detection method, it is possible to quickly and accurately determine whether the water channel inside the mold is unobstructed. This method is efficient, accurate, non-destructive, has a wide range of applications, and has broad application prospects.

[0072] Corresponding to the above-mentioned embodiment, the present application also proposes a mold on-off detection device.

[0073] like Figure 4 As shown, the mold on-off detection device 100 of the embodiment of the present application includes: a mold temperature controller 110, an infrared thermal imager 120 and a data processor 130.

[0074] The mold temperature controller 110 is used to adjust the temperature of the medium in the pipeline. The infrared thermal imager 120 is used to obtain temperature image information of all pipelines when the temperature of the medium reaches a preset temperature threshold. The data processor 130 is used to determine the on-off status of each pipeline according to the temperature image information.

[0075] According to an embodiment of the present application, the mold temperature controller 110 adjusts the temperature of the medium in the pipeline, and is specifically used to increase the temperature of the medium in the pipeline.

[0076] According to an embodiment of the present application, the mold temperature controller 110 adjusts the temperature of the medium in the pipeline to: lower the temperature of the medium in the pipeline.

[0077] According to one embodiment of the present application, the infrared thermal imager 120 obtains temperature image information of all pipelines, and is specifically used to: determine the infrared radiation image of the mold based on the infrared imager to obtain temperature image information based on the infrared radiation image, wherein the temperature image information includes temperature distribution data of all pipelines.

[0078] According to an embodiment of the present application, the data processor 130 is further configured to perform filtering, denoising and histogram equalization processing on the infrared radiation image.

[0079] According to an embodiment of the present application, the data processor 130 is further used to segment the processed infrared radiation image to obtain temperature distribution data of the medium in the pipeline.

[0080] According to one embodiment of the present application, the data processor 130 determines the on-off status of each pipeline based on the temperature image information, and is specifically used to: when the temperature of the medium in the pipeline rises to a first preset temperature threshold, obtain a first temperature difference between the first preset temperature threshold and the temperature of the medium in multiple pipelines; when the first temperature difference is within the first preset temperature difference range, determine that the corresponding pipeline is in a pass state; when the first temperature difference is not within the first preset temperature difference range, determine that the corresponding pipeline is in a blocked state.

[0081] According to one embodiment of the present application, the data processor 130 determines the on-off status of each pipeline based on the temperature image information, and is specifically used to: when the temperature of the medium in the pipeline drops to a second preset temperature threshold, obtain the second temperature difference between the medium temperature in multiple pipelines and the second preset temperature threshold; when the second temperature difference is within the second preset temperature difference range, determine that the corresponding pipeline is in a pass state; when the second temperature difference is not within the second preset temperature difference range, determine that the corresponding pipeline is in a blocked state.

[0082] It should be noted that for details not disclosed in the on-off detection device for the mold in the embodiment of the present application, please refer to the details disclosed in the on-off detection method for the mold in the embodiment of the present application, and the details will not be repeated here.

[0083] According to the mold on-off detection device of the embodiment of the present application, the mold temperature controller is used to adjust the temperature of the medium in the pipeline, the infrared thermal imager is used to obtain the temperature image information of all pipelines when the temperature of the medium reaches the preset temperature threshold, and the data processor is used to determine the on-off status of each pipeline according to the temperature image information. Therefore, the device can quickly and accurately determine whether the water channel inside the mold is unobstructed. The method is efficient, accurate, non-destructive, and has a wide range of applications, and has broad application prospects.

[0084] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0085] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0086] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0087] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0088] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0089] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A mold on-off detection method, characterized in that: The mold includes a water inlet and a water outlet, wherein the water inlet and the water outlet are connected via at least one pipeline, and the method includes: Adjusting the temperature of the medium in the pipeline; When the temperature of the medium reaches a preset temperature threshold, acquiring temperature image information of all the pipelines; The on / off status of each pipeline is determined according to the temperature image information.

2. The mold on-off detection method according to claim 1, characterized in that: The step of adjusting the temperature of the medium in the pipeline includes: The temperature of the medium in the pipeline is increased and adjusted.

3. The mold on-off detection method according to claim 1, characterized in that: The adjusting the temperature of the medium in the pipeline also includes: The temperature of the medium in the pipeline is lowered and adjusted.

4. The mold on-off detection method according to claim 1, characterized in that: The step of obtaining temperature image information of all the pipelines includes: An infrared radiation image of the mold is determined based on an infrared imager to obtain the temperature image information based on the infrared radiation image, wherein the temperature image information includes temperature distribution data of all the pipelines.

5. The mold on-off detection method according to claim 4, characterized in that: The method further comprises: The infrared radiation image is filtered, denoised and histogram equalized.

6. The mold on-off detection method according to claim 5, characterized in that: The method further comprises: The processed infrared radiation image is segmented to obtain temperature distribution data of the medium in the pipeline.

7. The on-off detection method of the mold according to claim 2, characterized in that: Determining the on-off status of each pipeline according to the temperature image information includes: When the temperature of the medium in the pipeline rises to a first preset temperature threshold, obtaining a first temperature difference between the first preset temperature threshold and the temperature of the medium in the plurality of pipelines; In the case where the first temperature difference is within the first preset temperature difference range, determining that the corresponding pipeline is in a passage state; When the first temperature difference is not within the first preset temperature difference range, it is determined that the corresponding pipeline is in a blocked state.

8. The mold on-off detection method according to claim 3, characterized in that: Determining the on-off status of each pipeline according to the temperature image information includes: When the temperature of the medium in the pipeline drops to a second preset temperature threshold, obtaining a second temperature difference between the temperature of the medium in the plurality of pipelines and the second preset temperature threshold; In the case where the second temperature difference is within the second preset temperature difference range, determining that the corresponding pipeline is in a passage state; In the case that the second temperature difference is not within the second preset temperature difference range, it is determined that the corresponding pipeline is in a blocked state.

9. A computer-readable storage medium, characterized in that: A program is stored thereon, and when the program is executed by a processor, the on-off detection method of the mold according to any one of claims 1-8 is implemented.

10. A mold on-off detection device, characterized in that: The mold includes a water inlet and a water outlet, wherein the water inlet and the water outlet are connected via at least one pipeline, and the device includes: A mold temperature controller, used to adjust the temperature of the medium in the pipeline; An infrared thermal imager, used for obtaining temperature image information of all the pipelines when the temperature of the medium reaches a preset temperature threshold; A data processor is used to determine the on-off status of each pipeline according to the temperature image information.

Images