Parallel waterway powder cleaning method for powder monitoring device and 3D printing die casting mold

Abstract

The application provides a powder cleaning monitoring device and a parallel water path powder cleaning method for a 3D printing die-casting mold. The powder cleaning monitoring device comprises a circulating water assembly, a powder filtering assembly, a flow monitoring assembly and a pipeline assembly. The pipeline assembly comprises a water inlet pipeline, a first backflow pipeline, a second backflow pipeline and a multi-channel adaptive pipeline. The multi-channel adaptive pipeline has multiple telescopic branches. The water inlet pipeline is connected to the water outlet of the circulating water assembly and the water inlet of the multi-channel adaptive pipeline. The first backflow pipeline and the second backflow pipeline are both used to connect the water outlet of the parallel water path and the backwater outlet of the circulating water assembly. The powder filtering assembly is connected in series to the first backflow pipeline to form a front filtering channel. The flow monitoring assembly is connected in series to the second backflow pipeline to form a flow monitoring channel. Through optimization of the powder cleaning structure and monitoring logic, the parallel water path is efficiently cleaned, the powder cleaning effect is quantitatively monitored, and the device has the advantages of simple structure, convenient operation, low cost, and water resource recycling.

Description

Technical Field

[0001] This invention relates to the field of water-based powder cleaning equipment for 3D printed die-casting molds, and in particular to a powder cleaning monitoring device and a parallel water-based powder cleaning method for 3D printed die-casting molds. Background Technology

[0002] With the widespread application of 3D printing technology in die casting mold manufacturing, 3D-printed die casting molds with complex conformal parallel water channels are gradually being used in precision die casting production due to their ability to improve cooling efficiency and casting quality. However, because 3D printing uses a layer-by-layer stacking process, metal powder easily remains on the inner walls of the parallel water channels and at the corners of the channels. If the powder is not thoroughly cleaned, it will pre-sinter or accumulate during subsequent heat treatment and die casting processes, leading to water channel blockage, reduced cooling efficiency, and consequently affecting the casting accuracy and surface quality. In severe cases, it can even cause localized overheating damage to the mold, shortening its service life.

[0003] In existing technologies, the cleaning of water channels for 3D printed die-casting molds mainly employs high-pressure airflow purging or single-channel high-pressure water cleaning. These devices have relatively simple structures, but can only remove surface powder from the water channels, offering poor cleaning of residual powder in corners and deep layers. Furthermore, their single-channel structure cannot adapt to the needs of parallel water channels with multiple branches, resulting in low cleaning efficiency. Simultaneously, these devices lack effective powder cleaning monitoring methods, relying on subjective human judgment for cleaning effectiveness, which is prone to misjudgment. Moreover, the lack of a water recycling system means that the powder-containing wastewater after cleaning is directly discharged, not only wasting water resources but also potentially causing environmental pollution. Summary of the Invention

[0004] Therefore, it is necessary to address the problems of existing parallel water-channel powder cleaning equipment for 3D printing die casting molds being unable to adapt to the powder cleaning needs of parallel water channels with multiple branches, having low powder cleaning efficiency, incomplete powder cleaning, lack of quantitative monitoring standards, and waste of water resources, and to provide a powder cleaning monitoring device and a parallel water-channel powder cleaning method for 3D printing die casting molds.

[0005] On one hand, this application provides a powder cleaning monitoring device for cleaning a parallel water circuit of a 3D printed die-casting mold, comprising: a circulating water assembly for outputting cleaning fluid; a powder filtration assembly for filtering powder in the cleaning fluid; a flow monitoring assembly for monitoring the flow rate of the cleaning fluid; and a pipeline assembly, the pipeline assembly including an inlet pipeline, a first return pipeline, a second return pipeline, and a multi-channel adapter pipeline, the multi-channel adapter pipeline having an inlet for entering the parallel water circuit and multiple retractable branches that match each branch of the parallel water circuit, the inlet pipeline connecting the outlet of the circulating water assembly and the inlet of the multi-channel adapter pipeline, the first return pipeline and the second return pipeline both connecting the outlet of the parallel water circuit and the return outlet of the circulating water assembly, the powder filtration assembly connected in series with the first return pipeline to form a pre-filtration channel, and the flow monitoring assembly connected in series with the second return pipeline to form a flow monitoring channel.

[0006] In one embodiment, the multi-channel adapter pipeline includes an outer pipe and multiple inner pipes. The outer pipe is connected to the water inlet pipeline and has multiple branch outlets. The multiple inner pipes are movably disposed inside the outer pipe and extend to the outside of the outer pipe through the branch outlets, respectively.

[0007] In one embodiment, the multi-channel adapter pipeline further includes a magnetic sealing element, which includes a magnetic part and a sealing part protruding from the magnetic part, and the magnetic sealing element has channels that are respectively connected to the water inlet pipeline and the outer pipe.

[0008] In one embodiment, the outlet end of the inner tube has a smooth transition structure.

[0009] In one embodiment, the diameter of the inner tube ranges from 3 mm to 12 mm.

[0010] In one embodiment, the flow monitoring component includes a flow meter disposed in the first return line and a display module communicatively connected to the flow meter.

[0011] In one embodiment, the flow meter has a measurement accuracy of ±1%.

[0012] In one embodiment, the circulating water assembly includes a water pump and a circulating water filtration unit, wherein the inlet of the circulating water filtration unit is the return outlet of the circulating water assembly; the outlet of the water pump is the outlet of the circulating water assembly, and the outlet of the circulating water filtration unit is connected to the inlet of the water pump.

[0013] In one embodiment, the powder cleaning monitoring device further includes a pressure regulating valve disposed between the water inlet pipe and the multi-channel adapter pipe.

[0014] In one embodiment, the output pressure of the circulating water assembly ranges from 0.3 MPa to 1.0 MPa.

[0015] On the other hand, this application provides a parallel water path cleaning method for a 3D printed die-casting mold, used to clean the parallel water path of the 3D printed die-casting mold using any of the aforementioned cleaning monitoring devices, comprising the following steps: assembling the cleaning monitoring device, connecting the multi-channel adapter pipe of the cleaning monitoring device to the inlet of the parallel water path, and connecting the pre-cleaning channel and flow monitoring channel of the cleaning monitoring device to the outlet of the parallel water path; switching to the pre-cleaning channel for cleaning until a preset cleaning period has elapsed; switching to the flow monitoring channel... The flow monitoring channel detects the real-time flow rate of the cleaning fluid flowing out of the outlet of the parallel water circuit and compares the real-time flow rate with the set initial flow rate. If the difference between the real-time flow rate and the initial flow rate is less than the preset standard flow rate difference, it is determined that the cleaning of the parallel water circuit is completed and the cleaning monitoring device is stopped. If the difference between the real-time flow rate and the initial flow rate is greater than or equal to the preset standard flow rate difference, it is determined that the cleaning of the parallel water circuit is not completed and the process returns to the step of switching to the front cleaning channel to perform cleaning until a preset cleaning time period has elapsed.

[0016] In one embodiment, the step of assembling the powder cleaning monitoring device, connecting its multi-channel adapter pipe to the inlet of the parallel water circuit, and connecting its pre-powder cleaning channel and flow monitoring channel to the outlet of the parallel water circuit includes: inserting the multi-channel adapter pipe into the inlet of the parallel water circuit; adjusting each of the retractable branches of the multi-channel adapter pipe so that each retractable branch is aligned with the inlet of each branch of the parallel water circuit; and connecting the first return pipe and the second return pipe to the outlet of the parallel water circuit.

[0017] In one embodiment, the step of switching to the pre-cleaning channel and cleaning until a preset cleaning period has elapsed includes: turning on the circulating water assembly, allowing the cleaning fluid to flow into each branch of the parallel water circuit through the multi-channel adapter pipe; filtering the cleaning fluid from the outlet of the parallel water circuit through the filter cleaning assembly and then returning it to the circulating water assembly; and continuously rinsing for a preset cleaning period.

[0018] The dust removal monitoring device of this application does not require a complex positioning and adjustment mechanism, is easy to operate, and has strong adaptability. By utilizing the water flow guiding effect, multiple retractable branches of the multi-channel adaptable pipeline can automatically introduce the cleaning fluid into the corresponding branch water inlet. Furthermore, the cleaning fluid removes metal powder from each branch water in the parallel water circuit through unidirectional flow. Combined with the water flow guiding effect of the multi-channel adaptable pipeline, it can accurately cover each branch and corner area of ​​the parallel water circuit, ensuring dust removal without dead angles.

[0019] The cleaning monitoring equipment of this application can filter metal powder in the cleaning liquid that is returned to the circulating water component through the powder filter component and the return pipeline, thereby realizing the recycling of water resources and reducing the cost of cleaning.

[0020] This application utilizes a flow monitoring component to monitor the flow rate of cleaning fluid flowing from the outlet of the parallel water channel of the 3D printed die-casting mold. The difference between the real-time flow rate and the set flow rate is used as a quantitative judgment criterion, which can realize the quantitative judgment of the powder cleaning effect and avoid the problem of subjective misjudgment by humans in the prior art. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of a dust monitoring device provided in one embodiment of this application; Figure 2 A schematic diagram of the steps of a parallel water channel powder cleaning method for a 3D printed die-casting mold provided in an embodiment of this application; Figure 3 A schematic diagram of step S100 of the parallel water channel powder cleaning method for 3D printed die casting molds according to the above embodiments of this application is shown. Figure 4 A schematic diagram of step S200 of the parallel water channel powder cleaning method for 3D printed die casting molds according to the above embodiments of this application is shown. Figure 5 A schematic flowchart of the parallel water-channel powder cleaning method for 3D printed die-casting molds according to the above embodiments of this application is shown.

[0022] Reference numerals: 10, circulating water assembly; 11, water pump; 12, circulating water filtration unit; 20, powder filter assembly; 30, flow monitoring assembly; 31, flow meter; 32, display module; 41, inlet pipe; 42, first return pipe; 43, second return pipe; 44, multi-channel adapter pipe; 50, pressure regulating valve; 60, parallel water circuit. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] Existing parallel water-channel powder cleaning equipment for 3D printed die-casting molds suffers from problems such as inadequate cleaning efficiency, incomplete cleaning, lack of quantitative monitoring standards, and water waste due to its inability to meet the needs of multi-branch parallel water channels. This application addresses these issues by providing a powder cleaning monitoring device and a parallel water-channel powder cleaning method for 3D printed die-casting molds. The powder cleaning monitoring device of this application optimizes the powder cleaning structure and monitoring logic to achieve efficient parallel water-channel powder cleaning, quantitative monitoring of the cleaning effect, and offers advantages such as simple structure, convenient operation, low cost, and water resource recycling.

[0030] Specifically, please refer to Figure 1 In some embodiments, the cleaning monitoring device of this application may include a circulating water assembly 10, a powder filtration assembly 20, a flow monitoring assembly 30, and a piping assembly. The circulating water assembly 10 outputs cleaning fluid, the powder filtration assembly 20 filters powder from the cleaning fluid, and the flow monitoring assembly 30 monitors the flow rate of the cleaning fluid. The piping assembly may include an inlet pipe 41, a first return pipe 42, a second return pipe 43, and a multi-channel adapter pipe 44. The multi-channel adapter pipe 44 has multiple retractable branches, each of which can enter the inlet of the parallel water circuit 60 and match each branch of the parallel water circuit 60. The inlet pipe 41 connects the outlet of the circulating water component 10 and the inlet of the multi-channel adapter pipe 44. The first return pipe 42 and the second return pipe 43 are both connected to the outlet of the parallel water circuit 60 and the return port of the circulating water component 10. The powder filter component 20 is connected in series with the first return pipe 42 to form a pre-filter channel. The flow monitoring component 30 is connected in series with the second return pipe 43 to form a flow monitoring channel.

[0031] It is understandable that the principle of the dust removal monitoring device in this application is to use water flow guidance to achieve multi-channel adaptation and association with parallel water circuits 60. The metal powder in the water circuit is carried out through unidirectional water flow, and the thoroughness of dust removal is determined by flow rate quantification monitoring, while simultaneously achieving water resource recycling. For example... Figure 5 As shown, its specific workflow can include three processes: equipment assembly, powder cleaning and filtration, and powder cleaning monitoring and judgment.

[0032] During equipment assembly, connect the inlet of the multi-channel adapter pipe 44 to the outlet of the circulating water component 10, insert the multi-channel adapter pipe 44 into the inlet of the parallel water circuit 60, and roughly adjust the position and height of the multi-channel adapter pipe 44 so that the branch directions of each retractable branch are aligned with the inlets of each branch water circuit of the parallel water circuit 60. Connect the first return pipe 42 to the return port of the circulating water component 10 and the outlet of the parallel water circuit 60, and connect the powder filter component 20 in series in the first return pipe 42 to form a pre-filter channel. Connect the second return pipe 43 to the return port of the circulating water component 10 and the outlet of the parallel water circuit 60, and connect the flow monitoring component 30 in series in the first return pipe 42 to form a flow monitoring channel.

[0033] During powder cleaning filtration, the system switches to the pre-filter channel and activates the circulating water assembly 10. Each retractable branch automatically draws the cleaning fluid into its corresponding inlet under the guidance of the water flow. The cleaning fluid then flows along the branch channels to the outlet of the parallel water channel 60, forming a unidirectional water path. Under the impact of the water flow, residual metal powder on the inner walls and corners of the branch channels is stripped off and flows out of the outlet of the parallel water channel 60, thus achieving powder cleaning. The cleaning fluid flowing out of the outlet of the parallel water channel 60 enters the pre-filter channel, is filtered by the powder filter to remove metal powder, and then flows back into the circulating water assembly 10 for repeated powder cleaning, achieving recycling.

[0034] During the dust removal monitoring and judgment process, after a set dust removal period, the system switches to the flow monitoring channel, where the cleaning fluid flowing from the outlet of the parallel water path 60 enters the flow monitoring channel. The flow monitoring component 30 is activated to detect the real-time flow rate of the cleaning fluid in the flow monitoring channel. The detected real-time flow rate is compared with the set flow rate. If the difference is less than the preset standard flow rate difference, the dust removal is considered complete, and the dust removal monitoring device can be turned off. If the difference is greater than or equal to the preset standard flow rate difference, the dust removal is considered incomplete, and the system switches back to the pre-filter path to continue dust removal until the difference is less than the preset standard flow rate difference.

[0035] Thus, the powder cleaning monitoring equipment of this application does not require a complex positioning and adjustment mechanism, making it convenient to operate and highly adaptable. Utilizing the water flow guiding effect, multiple retractable branches of the multi-channel adaptable pipe 44 automatically introduce the cleaning fluid into the corresponding branch water inlet. Furthermore, the unidirectional flow of the cleaning fluid removes metal powder from each branch of the parallel water path 60. Combined with the water flow guiding effect of the multi-channel adaptable pipe 44, it can accurately cover each branch and corner area of ​​the parallel water path 60, ensuring thorough powder cleaning. Secondly, the powder cleaning monitoring equipment of this application, through the powder filter component 20 and the return pipe, can filter the metal powder in the cleaning fluid returning to the circulating water component 10, achieving water resource recycling and reducing powder cleaning costs. Finally, this application uses the flow monitoring component 30 to monitor the flow rate of the cleaning fluid flowing from the outlet of the parallel water path 60 of the 3D printing die-casting mold. Using the difference between the real-time flow rate and the set flow rate as a quantitative judgment criterion, it can achieve a quantitative assessment of the powder cleaning effect, avoiding the problem of subjective misjudgment in existing technologies.

[0036] Optionally, in some embodiments, the multi-channel adapter pipe 44 of this application includes an outer pipe and multiple inner pipes. The outer pipe is connected to the water inlet pipe 41 and has multiple branch outlets. Multiple inner pipes are movably disposed inside the outer pipe and extend to the outside of the outer pipe through their respective branch outlets. In this way, the inner pipes are inserted into the outer pipe to form a nested telescopic structure. By adjusting the rear end of the inner pipe, the length of the front end of the inner pipe extending out of the outer pipe changes, which can form various telescopic branches of the multi-channel adapter pipe 44. Each telescopic branch can be independently adjusted in length and angle according to the burial depth, spacing, and spatial position of different branches of the parallel water circuit 60, ensuring that the front end of each inner pipe can be aligned with the branch water circuit inlet of the parallel water circuit 60, which significantly improves the adaptability and versatility of the equipment to 3D printed die-casting molds of different structural sizes. In addition, the nested telescopic structure's multi-channel adapter pipe 44 eliminates the need for multiple fixed-length dedicated pipes, simplifying equipment configuration, reducing manufacturing costs and storage space requirements, and making adjustment operations simple and quick, further enhancing the ease of operation and flexibility of the powder cleaning process.

[0037] Optionally, in some embodiments, the multi-channel adapter pipe 44 further includes a magnetic seal, which includes a magnetic part and a sealing part protruding from the magnetic part, and has channels respectively connecting to the inlet pipe 41 and the outer pipe. When the multi-channel adapter pipe 44 is inserted into the inlet of the parallel water channel 60 of the 3D printed die-casting mold, the magnetic part can magnetically adhere to the end face around the inlet of the parallel water channel 60, while the sealing part presses against the inner wall or end face of the inlet to form a sealing structure. In this way, through the synergistic design of magnetic adsorption and mechanical sealing, the multi-channel adapter pipe 44 and the inlet of the parallel water channel 60 can be quickly connected and disconnected, significantly improving assembly efficiency and reducing operational difficulty.

[0038] Preferably, in some embodiments, the outlet end of the inner tube of the multi-channel adapter pipe 44 has a smooth transition structure, which can prevent scratching the inner wall of the 3D printed die-casting mold and the inlet of the parallel water channel 60 when it is inserted into the inlet of the parallel water channel 60.

[0039] Optionally, in some embodiments, the multi-channel adapter pipe 44 can be replaced with inner pipes of different specifications according to the inlet size of the branch water channels of the parallel water channel 60, with the diameter of the inner pipe ranging from 3mm to 12mm. In this way, the multi-channel adapter pipe 44 has stronger adaptability, broadens the application range and versatility of the powder cleaning monitoring equipment, and can meet the powder cleaning needs of various 3D printing die-casting molds.

[0040] Optionally, in some embodiments, the inlet pipe 41, the first loop pipe, the second return pipe 43, and the multi-channel adapter pipe 44 are all connected by snap-fit.

[0041] Optionally, such as Figure 1 As shown, in some embodiments, the flow monitoring component 30 includes a flow meter 31 disposed in the first return pipe 42 and a display module 32 communicatively connected to the flow meter 31. Thus, the flow meter 31 can monitor the real-time flow rate of the cleaning fluid flowing through the first return pipe 42 and feed it back to the display module 32, which can display the real-time flow rate value and the cleaning determination result. For example, the display module 32 uses a red-green light to display the cleaning determination result. When the difference between the real-time flow rate detected by the flow meter 31 and the set flow rate is less than the preset standard flow rate difference, the display module 32 displays a green light, indicating that the cleaning is complete; when the difference between the real-time flow rate detected by the flow meter 31 and the set flow rate is greater than or equal to the preset standard flow rate difference, the display module 32 displays a red light, indicating that the cleaning is not complete. In this way, the flow monitoring component 30 can provide a clear and quantitative judgment standard for whether the cleaning is complete, avoiding the problem of subjective misjudgment by humans in the prior art, significantly improving the accuracy of cleaning quality control, and effectively solving the safety hazard of blockage in the parallel water circuit 60.

[0042] Optionally, such as Figure 1 As shown, in some embodiments, to ensure that the flow monitoring component 30 can accurately determine whether the powder cleaning is complete, the measurement accuracy of the flow meter 31 is ±1%. This high-precision flow meter 31 can sensitively detect changes in real-time flow, significantly improving the sensitivity and reliability of powder cleaning status determination. Based on this high-precision flow meter 31, the flow threshold for determining whether powder cleaning is complete can be set more strictly, effectively avoiding the risk of misjudgment caused by data fluctuations or system errors due to low-precision flow meters 31.

[0043] Optionally, such as Figure 1As shown, in some embodiments, since the cleaning fluid flowing out of the outlet of the parallel water path 60 still contains mixed metal powder when the powder is not thoroughly removed, to prevent the metal powder in the cleaning fluid from re-entering the parallel water path 60 through the circulating water assembly 10 after switching to the flow monitoring channel, the circulating water assembly 10 includes a water pump 11 and a circulating water filter unit 12. The inlet of the circulating water filter unit 12 is the return outlet of the circulating water assembly 10; the outlet of the water pump 11 is the outlet of the circulating water assembly 10, and the outlet of the circulating water filter unit 12 is connected to the inlet of the water pump 11. In this way, after the cleaning fluid enters the circulating water assembly 10, it will be filtered again by the circulating water filter unit 12 to remove the metal powder in the cleaning fluid, ensuring that the cleaning fluid entering the parallel water path 60 of the 3D printing die-casting mold each time does not carry metal powder, thus avoiding the risk of secondary blockage caused by the removed metal powder re-entering the branch water path.

[0044] Optionally, in some embodiments, since 3D printed die-casting molds are mostly made of iron powder, the powder filter assembly 20 can be an iron powder filter. When the cleaning fluid flows through the iron powder filter, the iron powder in the cleaning fluid is magnetically attracted and adsorbed by the iron powder filter. In this way, by using magnetic adsorption, there is no need to set up a complex physical filter medium, the structure is simpler, and the risk of leakage caused by the powder particle size being smaller than the filter screen pore size is avoided. Similarly, the circulating water filter unit 12 can also be an iron powder filter.

[0045] Optionally, in some embodiments, the output pressure range of the circulating water component 10 is 0.3MPa to 1.0MPa, which can adapt to the powder cleaning requirements of the parallel water circuit 60 of 3D printed die-casting molds of different specifications. The output pressure of the circulating water component 10 can be adjusted by a knob, and the operator can quickly adjust it according to the size of the 3D printed die-casting mold and the parallel water circuit 60 without having professional debugging skills.

[0046] Optionally, such as Figure 1 As shown, in some embodiments, the dust removal monitoring device further includes a pressure regulating valve 50, which is disposed between the inlet water pipe 41 and the multi-channel adapter pipe 44. Thus, the pressure regulating valve 50 can pressurize the circulating water assembly 10, adapting to the high-pressure dust removal requirements of the parallel water circuit 60 with a smaller diameter. The adjustment range of the pressure regulating valve 50 is 0.5 MPa to 1.0 MPa.

[0047] Furthermore, such as Figure 2 As shown, this application also provides a parallel water channel powder cleaning method for 3D printed die-casting molds, used to clean the parallel water channels of the 3D printed die-casting molds using any of the powder cleaning monitoring devices described above, including the following steps: S100. Assemble the powder cleaning monitoring equipment, so that the multi-channel adapter pipeline of the powder cleaning monitoring equipment is connected to the inlet of the parallel water circuit, and the pre-powder cleaning channel and flow monitoring channel of the powder cleaning monitoring equipment are connected to the outlet of the parallel water circuit. S200, switch to the pre-cleaning channel and clean the powder until a preset cleaning time period has elapsed; and; S300, Switch to the flow monitoring channel to detect the real-time flow rate of the cleaning fluid flowing out of the outlet of the parallel water circuit, and compare the real-time flow rate with the set initial flow rate; If the difference between the real-time flow rate and the initial flow rate is less than the preset standard flow rate difference, then it is determined that the parallel water path cleaning is completed and the cleaning monitoring equipment is stopped. If the difference between the real-time flow rate and the initial flow rate is greater than or equal to the preset standard flow rate difference, it is determined that the parallel water path cleaning is not completed and the process returns to the step of switching to the pre-cleaning channel to perform cleaning until a preset cleaning period has elapsed.

[0048] Referring to the parallel water path powder cleaning method for 3D printed die-casting molds described above, when using the powder cleaning monitoring device of this application to clean the 3D printed die-casting mold, firstly, referring to step S100, the powder cleaning monitoring device is assembled with the 3D printed die-casting mold, the multi-channel adapter pipe is connected to the inlet of the parallel water path, and the pre-powder cleaning channel and flow monitoring channel are connected to the outlet of the parallel water path. Then, referring to step S200, the powder cleaning monitoring device is switched to the pre-powder cleaning channel, and powder cleaning is performed continuously for a preset powder cleaning period. This preset powder cleaning period can be set according to the actual situation of the 3D printed die-casting mold, for example, 5 minutes is set as a preset powder cleaning period. Finally, referring to step S300, the powder cleaning monitoring device is switched to the flow monitoring channel to detect the real-time flow rate of the cleaning fluid flowing from the outlet of the parallel water path. This real-time flow rate is compared with the set initial flow rate. Based on the comparison result, it is determined whether the powder cleaning is complete. If the powder cleaning is complete, the cleaning process is stopped; if the powder cleaning is incomplete, steps S200 and S300 are repeated. In this way, the parallel water path powder cleaning method for 3D printed die-casting molds significantly simplifies the complex process of traditional powder cleaning operations that rely on manual experience. Operators only need to complete the initial pipeline connection; subsequent cleaning and testing processes are completed through channel switching. This greatly reduces the workload and reliance on operators' professional skills, and improves the standardization and replicability of on-site operations.

[0049] Optionally, such as Figure 3 As shown, in some embodiments, step S100, assembling the powder cleaning monitoring device, connecting the multi-channel adapter pipeline of the powder cleaning monitoring device to the inlet of the parallel water circuit, and connecting the pre-powder cleaning channel and flow monitoring channel of the powder cleaning monitoring device to the outlet of the parallel water circuit, includes: S110. Insert the multi-channel adapter pipe into the inlet of the parallel water circuit; S120. Adjust each of the retractable branches of the multi-channel adapter pipeline so that each of the retractable branches is aligned with the inlet of each branch of the parallel water circuit; and; S130. Connect the first return pipe and the second return pipe to the outlet of the parallel water circuit.

[0050] When connecting the cleaning and monitoring equipment to the parallel water circuit, the above steps can be followed. Specifically, referring to step S110, the multi-channel adapter pipe is directly inserted into the inlet of the parallel water circuit, enabling rapid connection. Referring to step S120, each retractable branch is adjusted so that each retractable branch is roughly aligned with a different branch of the parallel water circuit, preparing for the subsequent introduction of cleaning fluid into the branch water circuit using water flow. Referring to step S130, the first return pipe and the second return pipe are connected to the outlet of the parallel water circuit respectively, forming the pre-cleaning channel and the flow monitoring channel.

[0051] Optionally, such as Figure 4 As shown, in some embodiments, step S200, switching to the pre-cleaning channel and performing cleaning until a preset cleaning period has elapsed, includes: S210. Turn on the circulating water assembly to allow the cleaning fluid to flow into each branch of the parallel water circuit through the multi-channel adapter pipe. S220, The cleaning fluid from the outlet of the parallel water circuit is filtered through the filter cleaning powder assembly and then returned to the circulating water assembly; and; S230, continuously rinse for a preset powder cleaning period.

[0052] During the cleaning process of the cleaning monitoring equipment, referring to step S210, after turning on the circulating water component, the expandable branches of the multi-channel adaptable pipeline, guided by the water flow, introduce the cleaning fluid into the corresponding branch water channels. Under the flushing effect of the cleaning fluid, residual metal powder on the inner wall and corners of the water channels is peeled off. Referring to step S220, after filtering the metal powder in the cleaning fluid using the filter cleaning component, the cleaning fluid is returned to the circulating water component, realizing the reuse of the cleaning fluid without the need for continuous replenishment of new cleaning fluid. Referring to step S230, by preset a cleaning time period (e.g., 5 minutes), after continuous flushing for one cleaning time period, flow monitoring is performed to ensure that the cleaning fluid has sufficient time to complete the peeling off of metal powder.

[0053] For example, the parallel water channel powder cleaning method for 3D printed die casting molds of this application will be further described below with reference to specific examples.

[0054] In the first example, the output pressure adjustment range of the circulating water component of the powder cleaning monitoring equipment is 0.3MPa to 1MPa, the diameter of the return pipe is 15mm, the multi-channel adapter pipe includes 3 inner pipes, forming 3 retractable branches, each retractable branch has a diameter of 4mm, the measurement accuracy of the flow monitoring component is ±1%, the initial flow rate of the powder cleaning monitoring equipment is set to 10L / min, and the standard flow difference is set to 5%.

[0055] After assembling the powder cleaning monitoring equipment and the 3D printed die-casting mold, set the output pressure of the circulating water component to 0.8MPa and flush continuously for 5 minutes. Then switch to the flow monitoring channel. The flow monitoring component monitors a real-time flow rate of 9.9L / min, which is 1% different from the initial flow rate. Since this is less than the standard flow rate difference, the powder cleaning is considered complete.

[0056] The second example, for parallel water circuits with narrower branch inlet sizes, differs from the first example in that the multi-channel pipeline includes six inner pipes, forming six expandable branches. The distance between each expandable branch is 3mm. The output pressure adjustment range of the circulating water component is 0.5MPa to 1MPa, and a pressure regulating valve is installed for pressurization. The initial flow rate of the dust removal monitoring equipment is set to 5L / min, and the standard flow difference is set to 5%.

[0057] After assembling the powder cleaning monitoring equipment and the 3D printed die-casting mold, the output pressure of the circulating water component was set to 0.8MPa. After rinsing for 5 minutes, the flow monitoring channel was switched. The difference between the real-time flow rate and the initial flow rate monitored by the flow monitoring component was 5%, which was equal to the standard flow rate difference. It was determined that the powder cleaning was not thorough, and the equipment continued to clean the powder. After rinsing for a second 5 minutes, the difference between the real-time flow rate and the initial flow rate monitored by the flow monitoring component decreased to 3%, which was less than the standard flow rate difference. It was determined that the powder cleaning was thorough.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A powder cleaning monitoring device for using parallel water channels to clean 3D printed die-casting molds, characterized in that, include: A circulating water assembly for outputting cleaning fluid; A powder filtration assembly for filtering powder from a cleaning solution; A flow monitoring component, wherein the flow monitoring component is used to monitor the flow rate of the cleaning fluid; as well as The piping assembly includes an inlet pipe, a first return pipe, a second return pipe, and a multi-channel adapter pipe. The multi-channel adapter pipe has an inlet for entering the parallel water circuit and multiple retractable branches that match each branch of the parallel water circuit. The inlet pipe connects the outlet of the circulating water assembly and the inlet of the multi-channel adapter pipe. The first and second return pipes both connect the outlet of the parallel water circuit and the return outlet of the circulating water assembly. The powder filter assembly is connected in series with the first return pipe to form a pre-filtration channel, and the flow monitoring assembly is connected in series with the second return pipe to form a flow monitoring channel.

2. The dust monitoring device according to claim 1, characterized in that, The multi-channel adapter pipeline includes an outer pipe and multiple inner pipes. The outer pipe is connected to the water inlet pipeline and has multiple branch outlets. The multiple inner pipes are movably disposed inside the outer pipe and extend to the outside of the outer pipe through the branch outlets respectively.

3. The dust monitoring device according to claim 2, characterized in that, The multi-channel adapter pipeline also includes a magnetic sealing element, which includes a magnetic part and a sealing part protruding from the magnetic part, and the magnetic sealing element has channels that are respectively connected to the water inlet pipeline and the outer pipe.

4. The dust monitoring device according to claim 2, characterized in that, The outlet end of the inner tube has a smooth transition structure.

5. The dust monitoring device according to claim 2, characterized in that, The diameter of the inner tube ranges from 3 mm to 12 mm.

6. The dust monitoring device according to any one of claims 1 to 5, characterized in that, The flow monitoring component includes a flow meter disposed in the first return pipeline and a display module communicatively connected to the flow meter.

7. The dust monitoring device according to claim 6, characterized in that, The flow meter has a measurement accuracy of ±1%.

8. The dust monitoring device according to any one of claims 1 to 5, characterized in that, The circulating water assembly includes a water pump and a circulating water filtration unit. The inlet of the circulating water filtration unit is the return outlet of the circulating water assembly. The outlet of the water pump is the outlet of the circulating water assembly, and the outlet of the circulating water filtration unit is connected to the inlet of the water pump.

9. The dust monitoring device according to any one of claims 1 to 5, characterized in that, The powder cleaning monitoring device further includes a pressure regulating valve, which is disposed between the water inlet pipe and the multi-channel adapter pipe.

10. The dust monitoring device according to any one of claims 1 to 5, characterized in that, The output pressure range of the circulating water component is 0.3 MPa to 1.0 MPa.

11. A method for cleaning powder from parallel water channels in a 3D printed die-casting mold, used to clean powder from the parallel water channels of the 3D printed die-casting mold using a powder cleaning monitoring device as described in any one of claims 1 to 10, characterized in that, Includes the following steps: The powder cleaning monitoring equipment is assembled such that its multi-channel adapter pipeline is connected to the inlet of the parallel water circuit, and its pre-powder cleaning channel and flow monitoring channel are connected to the outlet of the parallel water circuit. Switch to the pre-cleaning channel and clean the powder until a preset cleaning time period has elapsed; Switch to this flow monitoring channel to detect the real-time flow rate of the cleaning fluid flowing out of the outlet of the parallel water circuit, and compare the real-time flow rate with the set initial flow rate; If the difference between the real-time flow rate and the initial flow rate is less than the preset standard flow rate difference, then it is determined that the parallel water path cleaning is completed and the cleaning monitoring equipment is stopped. If the difference between the real-time flow rate and the initial flow rate is greater than or equal to the preset standard flow rate difference, it is determined that the parallel water path cleaning is not completed and the process returns to the step of switching to the pre-cleaning channel to perform cleaning until a preset cleaning period has elapsed.

12. The parallel water-channel powder cleaning method for 3D printed die-casting molds according to claim 11, characterized in that, The steps of assembling the powder cleaning monitoring equipment, connecting its multi-channel adapter pipe to the inlet of the parallel water circuit, and connecting its pre-powder cleaning channel and flow monitoring channel to the outlet of the parallel water circuit include: Insert the multi-channel adapter pipe into the inlet of the parallel water circuit; Adjust each retractable branch of the multi-channel adapter pipeline so that each retractable branch is aligned with the inlet of each branch of the parallel water circuit; and Connect the first and second return pipes to the outlet of the parallel water circuit.

13. The parallel water-channel powder cleaning method for 3D printed die-casting molds according to claim 11, characterized in that, The step of switching to the pre-cleaning channel and cleaning the powder until a preset cleaning period has elapsed includes: Turn on the circulating water assembly to allow the cleaning fluid to flow into each branch of the parallel water circuit through the multi-channel adapter pipe. The cleaning fluid from the outlet of the parallel water circuit is filtered by the filtration and cleaning powder assembly and then returned to the circulating water assembly; and Continuously rinse for a preset powder removal period.

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