A method and system for producing a medical antibacterial breathable composite fiber

Abstract

The application relates to a production method and system of medical antibacterial breathable composite fibers, and relates to the field of fiber production technology, which comprises the following steps: obtaining a particle detection concentration and a current blowing intensity; performing simulation based on the particle detection concentration to obtain a particle concentration distribution model; determining an exceeding area based on the particle concentration distribution model and a concentration threshold plane; finding a blowing nozzle number from a blowing database according to the exceeding area; determining a particle area concentration based on the particle concentration distribution model and the exceeding area; finding an enhancement amplitude from an enhancement database based on the current blowing intensity and the particle area concentration; calculating an enhanced blowing intensity based on the current blowing intensity and the enhancement amplitude; controlling the blowing nozzle corresponding to the blowing nozzle number to blow according to the enhanced blowing intensity, and controlling other blowing nozzles to remain unchanged. The application has the effects of enabling microparticles to quickly return to a recovery area, preventing the influence of the microparticles on the composite fibers, and guaranteeing the air permeability of the composite fibers in a forming process.

Description

Technical Field

[0001] This invention relates to the field of fiber production technology, and in particular to a method and system for producing medical antibacterial and breathable composite fibers. Background Technology

[0002] Composite fiber is a type of fiber, a term used to describe various types of man-made fibers. A composite fiber is a fiber in which two or more immiscible polymer fibers are present on the same cross-section.

[0003] The fiber towing process takes place in a spinning machine, which includes a metering pump, a filter, a spinneret, and a duct. The fiber slurry enters the metering pump through a slurry pipe inside an insulated chamber. The metering pump presses precisely measured fiber slurry into the filter for filtration, and then delivers it to the spinneret. The spinneret is then ablated into fiber filaments of the desired diameter through tiny orifices. The fiber filaments enter the duct and are dried by hot air. The spinning assembly is connected to an antibacterial oiling tank, which in turn is connected to a winding machine. The spun fibers are ejected from the spinning assembly, pass through the antibacterial oiling tank, and are wound onto the surface of the winding machine.

[0004] Regarding the aforementioned technologies, the requirements for composite fibers in the medical field are extremely high, requiring them to have certain antibacterial and breathable properties. However, antibacterial agents can only target microorganisms but cannot prevent particulate contamination. Particulate contamination can easily clog the micropores of fibers and damage their performance. Summary of the Invention

[0005] To address the unavoidable problem of particulate contamination, which can easily clog fiber micropores and damage fiber performance, this invention provides a method and system for producing medical antibacterial and breathable composite fibers.

[0006] In a first aspect, the present invention provides a method for producing a medical antibacterial and breathable composite fiber, employing the following technical solution: A method for producing a medical antibacterial and breathable composite fiber includes: Step 1: Obtain the particle detection concentration and current airflow intensity set within the clean area; Step 2: When there is a particle detection concentration greater than the preset pollution concentration threshold, a simulation is performed based on the particle detection concentration to obtain a particle concentration distribution model; Step 3: Determine the out-of-bounds area based on the particle concentration distribution model and the preset concentration threshold plane; Step 4: Find the corresponding nozzle number from the preset blower database based on the area outside the specified range; Step 5: Determine the particle concentration in the region based on the particle concentration distribution model and the region beyond the designated area; Step 6: Based on the current wind intensity and particle concentration in the region, find the enhancement magnitude from the preset enhancement database; Step 7: Calculate the enhanced wind intensity based on the current wind intensity and the enhancement range; Step 8: Control the blower corresponding to the blower nozzle number to blow air with increased airflow intensity, while keeping the other blower nozzles unchanged.

[0007] By adopting the above technical solution, by identifying areas with abnormal concentrations, the corresponding blower nozzles are controlled to increase the blowing intensity, so that the particles can quickly return to the recycling area, preventing the particles from affecting the composite fibers and ensuring the air permeability during the composite fiber molding process.

[0008] Optionally, it also includes an optimization method for controlling the blower corresponding to the blower nozzle number to blow air according to the enhanced blowing intensity, the method including: Step 80: Divide all the out-of-bounds areas according to the preset edge rules to determine the edge area, adjacent area, edge nozzle number, and adjacent nozzle number; Step 81: Find the corresponding edge enhancement amplitude and neighboring enhancement amplitude based on the edge region and the neighboring region respectively, and calculate the edge enhancement blowing intensity and the neighboring enhancement blowing intensity; Step 82: When the intensity of the adjacent enhanced blowing is higher than that of the edge enhanced blowing, no optimization is performed; Step 83: When the intensity of the adjacent enhanced blowing is lower than that of the edge enhanced blowing, the suction blowing intensity is calculated based on the edge enhanced blowing intensity and the preset suction multiple. Step 84: Control the blower corresponding to the adjacent blower number to blow air according to the suction blowing intensity.

[0009] By adopting the above technical solution, the area beyond the boundary is divided to determine the edge area. The wind in the adjacent edge area is stronger than the wind in the edge area, thereby generating negative pressure. This causes the particles in the edge area to be attracted by the adjacent area and are not easy to diffuse to the outer area, thus ensuring the stability of the particle recovery process.

[0010] Optionally, it also includes an optimization method for controlling the blowers corresponding to adjacent blower numbers to blow air according to the suction blowing intensity, the method including: Step 840: Based on the edge-enhanced blowing intensity and the suction blowing intensity, reduce them by the same arbitrary ratio to obtain the corresponding expected edge intensity and expected suction intensity; Step 841: Input the expected edge intensity, expected attraction intensity, and particle region concentration corresponding to the edge region and adjacent region into the preset wind simulation model to obtain the remaining particle region concentration corresponding to the edge region and adjacent region; Step 842: Compare the concentrations of the two remaining particle regions with the pollution concentration thresholds to obtain the concentration difference; Step 843: Adjust the ratio according to the concentration difference to update the expected edge strength and expected attraction strength, and then repeat steps 841 and 842 until one of the concentration differences is equal to 0 and the other concentration difference is less than 0. Define the expected edge strength at this time as the actual edge strength and the expected attraction strength at this time as the actual attraction strength. Step 844: Control the blower corresponding to the edge blower number to blow according to the actual edge strength, and control the blower corresponding to the adjacent blower number to blow according to the actual suction strength.

[0011] By adopting the above technical solution, since the wind in the near edge area is stronger than the wind in the edge area, the particles will be attracted by the near area. Therefore, the particles in the edge area will actually be less than the particles before the wind blows. Thus, the wind in the edge area does not need to be designed according to the current particle concentration. Therefore, reducing the wind force of both can also achieve the purpose of blowing away all the particles, thereby reducing the wind cost while ensuring negative pressure.

[0012] Optional, also includes: Step 845: Determine the regions other than the edge regions and adjacent regions based on the out-of-bounds region, edge region, and adjacent region; Step 8450: When the preset air outlet area is the same as one of the other areas or adjacent areas, the air outlet area is defined as the central area; Step 8451: When the air outlet area is the same as one of the edge areas, the edge area is defined as the target edge area, and the adjacent area corresponding to the target edge area is defined as the center area; Step 846: Divide the central area according to the preset step division rules to obtain a step area group; Step 847: Set the corresponding out-of-range areas of the stepped area group according to the minimum actual edge strength and suction multiple to obtain the stepped blowing intensity corresponding to the out-of-range areas. Step 8470: When the stepped air blowing intensity is greater than the corresponding enhanced air blowing intensity, control the air nozzle number corresponding to the stepped area group to blow air according to the corresponding stepped air blowing intensity; Step 8471: When the stepped airflow intensity is less than the corresponding enhanced airflow intensity, update the corresponding stepped airflow intensity according to the enhanced airflow intensity and continue to set the stepped airflow intensity sequentially.

[0013] By adopting the above technical solution, based on the effect of negative pressure, when the air outlet area is outside the area, negative pressure areas can be set up layer by layer, thereby guiding the particles towards the air outlet area layer by layer, improving the efficiency of blowing the particles out of the key spinning area.

[0014] Optional, also includes: Step 848: When the air outlet area does not fall into the area beyond the air outlet area, determine the edge area closest to the air outlet area based on the air outlet area and the edge area, and define the edge area as the dynamic center area. Step 849: After performing steps 846 to 8471 according to the central region, re-acquire the particle detection concentration, and continue to perform steps 845 to 8471 until the air outlet area falls into the area beyond the limit.

[0015] By adopting the above technical solution, when the air outlet area is not outside the area, the edge area closest to the air outlet area is set as the central area, thereby gathering the particles at the position closest to the air outlet area and then gradually moving towards the air outlet area, which improves the efficiency of blowing the particles out of the key spinning area.

[0016] Optionally, it also includes an optimized method for blowing particles when the air outlet area does not fall into the area beyond the designated area, the method comprising: Step 8480: When the air outlet area does not fall into the area beyond the designated area, determine the adjacent area based on the air outlet area; Step 8481: Draw tangent line segments based on adjacent areas and areas beyond the boundary; Step 8482: Determine the expanded excess area based on the tangent line segment, adjacent area, air outlet area, and excess area, and update it to the excess area; Step 8483: Execute steps 845 through 8471.

[0017] By adopting the above technical solution, when the air outlet area is not outside the extra-area, the area between the air outlet area and the extra-area, as well as the air outlet area itself, can be regarded as the extra-area, so that the air outlet area falls into the extra-area, thereby improving the flexibility of the microparticles being blown out of the key spinning area.

[0018] Optionally, it also includes a method for controlling the blower corresponding to the adjacent blower number to blow according to the suction blowing intensity, the method including: Step 85: Analyze the edge region and the preset overall box area to determine the edge situation; Step 86: When the edge condition is the preset wall-attached condition, control the air nozzle corresponding to the adjacent air nozzle number to blow air according to the corresponding enhanced air blowing intensity; Step 87: When the edge condition is not the wall-attached condition, control the blower corresponding to the adjacent blower number to blow according to the suction blowing intensity.

[0019] By adopting the above technical solution, when the edge area is surrounded by a wall, the wall forms a physical anti-diffusion measure. At this time, there is no need to increase the wind force, reducing the waste of costs caused by increasing the wind force and saving costs.

[0020] Optionally, it also includes an optimized method for blowing air from the nozzle corresponding to the edge nozzle number when the edge condition is wall-attached, the method including: Step 860: Define the enhanced blowing intensity corresponding to the edge blower number as the edge blowing intensity, and define the enhanced blowing intensity corresponding to the adjacent blower number as the adjacent blowing intensity; Step 861: Retrieve historical particle detection concentrations and historical air outlet particle concentrations; Step 862: Calculate the difference between the historical particle detection concentration and the historical air outlet particle concentration, and define this difference as the wall-attached particle concentration; Step 863: When the concentration of attached particles is less than the preset cleaning concentration threshold, the blower corresponding to the edge blower number blows according to the edge blowing intensity; Step 864: When the concentration of attached particles is greater than the cleaning concentration threshold and the edge blowing intensity is greater than the preset cleaning blowing intensity, the blowing nozzle corresponding to the edge blowing nozzle number blows according to the edge blowing intensity. Step 865: When the concentration of attached particles is greater than the cleaning concentration threshold but the edge blowing intensity is less than the cleaning blowing intensity, and the adjacent blowing intensity is greater than the cleaning blowing intensity, the blowing nozzle corresponding to the edge blowing nozzle number blows according to the cleaning blowing intensity. Step 866: When the concentration of attached particles is greater than the cleaning concentration threshold but the edge blowing intensity is less than the cleaning blowing intensity, and the adjacent blowing intensity is less than the cleaning blowing intensity, the blowing nozzle corresponding to the edge blowing nozzle number blows according to the adjacent blowing intensity.

[0021] By adopting the above technical solution, when the amount of discharged particles is less than the content at the detected location, it indicates that some particles have adhered to the wall surface. At this time, strong wind is needed to blow away the particles on the wall surface, thereby improving the cleanliness of the key spinning area.

[0022] Optionally, the method for blowing air according to the adjacent blowing intensity of the edge blower nozzle number includes: Step 8660: Calculate the difference in blowing intensity based on the nearby blowing intensity and the cleaning blowing intensity; Step 8661: Find the corresponding pulse frequency from the preset pulse database based on the concentration of attached particles, the nearby blowing intensity, and the difference in blowing intensity; Step 8662: Update the edge blowing intensity based on the wall-attached particle concentration to obtain the pulsed edge blowing intensity; Step 8663: The blower corresponding to the edge blower number blows according to the pulse edge blower intensity and then changes to the adjacent blower intensity according to the pulse frequency until the concentration of attached particles is less than the preset cleaning concentration threshold.

[0023] By adopting the above technical solution, when the strong wind is stronger than the wind in the nearby area, the air is blown in the form of pulses, so that the particles are lifted by the pulses and then carried away by the continuous wind, which improves the efficiency of wall cleaning.

[0024] Secondly, the present invention provides a production system for medical antibacterial and breathable composite fibers, which adopts the following technical solution: A production system for medical antibacterial and breathable composite fibers includes: The acquisition module is used to acquire particle detection concentration and current wind intensity; A memory for storing the program of the control method for the production method of the medical antibacterial and breathable composite fiber as described above; The processor loads and executes programs from memory.

[0025] By adopting the above technical solution, by identifying areas with abnormal concentrations, the corresponding blower nozzles are controlled to increase the blowing intensity, so that the particles can quickly return to the recycling area, preventing the particles from affecting the composite fibers and ensuring the air permeability during the composite fiber molding process.

[0026] In summary, the present invention has at least one of the following beneficial technical effects: By identifying areas with abnormal concentrations, the corresponding blower nozzles are controlled to increase the blowing intensity, so that the particles can quickly return to the recycling area, preventing the particles from affecting the composite fibers and ensuring the air permeability during the composite fiber molding process. The wind near the edge area is stronger than the wind in the edge area, which creates negative pressure. This causes the particles in the edge area to be attracted by the adjacent area and are not easy to diffuse to the outer area, thus ensuring the stability of the particle recovery process. When the air outlet area is outside the designated area, negative pressure areas are set up layer by layer to guide the particles toward the air outlet area, thereby improving the efficiency of blowing the particles out of the key spinning area. Attached Figure Description

[0027] Figure 1 This is a flowchart of a method for producing a medical antibacterial and breathable composite fiber according to an embodiment of this application; Figure 2 This is a schematic diagram of the particle concentration distribution model in the embodiments of this application; Figure 3 This is a top view of the area beyond the specified region in the embodiments of this application; Figure 4 This is a schematic diagram of the ladder division rules in the embodiments of this application; Figure 5 This is a schematic diagram of the area outside the designated area in an embodiment of this application, where the air outlet area does not fall within the area outside the designated area. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0029] This invention discloses a method for producing a medical antibacterial and breathable composite fiber. (Refer to...) Figure 1 A method for producing a medical antibacterial and breathable composite fiber includes: Step 1: Obtain the particle detection concentration and current airflow intensity set in the clean area.

[0030] The clean area refers to the critical area in the production of medical antibacterial and breathable composite fibers. It's a production area where the levels of airborne contaminants such as particles and microorganisms are controlled to achieve a specified cleanliness level; it's the core operating area in the spinning process. Particle detection concentration refers to the concentration of airborne suspended particles detected within the clean area. This is obtained through particle detectors. Several particle detectors are installed in key spinning areas to monitor particle concentrations in different areas, preventing detection lag due to slow particle diffusion. Current airflow intensity refers to the necessary airflow intensity during the spinning process to ensure the verticality of the fiber bundle and high-quality filaments. This can be obtained by directly reading the airflow setting on the air nozzle.

[0031] Step 2: When there is a particle detection concentration greater than the preset pollution concentration threshold, a simulation is performed based on the particle detection concentration to obtain a particle concentration distribution model.

[0032] The contamination concentration threshold refers to the pre-set acceptable critical value for particle concentration in the clean area for medical antibacterial and breathable composite fiber spinning. It is formulated according to the cleanliness level requirements of fiber production (such as industry standards for medical-grade textile products). The particle concentration distribution model is a digital model that can intuitively reflect the size, distribution range, and concentration gradient of particles at different spatial locations within the clean area. It can be generated quickly by using mature computational fluid dynamics (CFD) software (such as Fluent, STAR-CCM+) or dedicated cleanroom environment simulation software, taking particle concentration data from each detection point as input parameters, and combining it with the spatial structure of the clean area for numerical simulation. Alternatively, simple distribution models can be constructed using machine learning and spatial interpolation algorithms (such as Kriging interpolation and inverse distance weighted interpolation). Figure 2 As shown.

[0033] When a particle concentration exceeding the contamination concentration threshold is detected, it indicates that the particle concentration is too high and does not meet the requirements of a clean area. In such an environment, micropores may become clogged during the spinning process, so measures need to be taken. If no particle concentration exceeding the contamination concentration threshold is detected, the current state remains unchanged.

[0034] Step 3: Determine the out-of-bounds area based on the particle concentration distribution model and the preset concentration threshold plane.

[0035] The concentration threshold plane refers to the critical concentration plane constructed in the three-dimensional space of a particle concentration distribution model, such as... Figure 2 The dashed line represents the plane shown. The "out-of-bounds area" refers to all spatial regions within the clean area particle concentration distribution model where the particle concentration value exceeds the concentration threshold plane. Through the model's spatial threshold filtering and region extraction algorithms, all spatial units in the model with concentration values ​​exceeding the concentration threshold plane can be automatically identified.

[0036] Step 4: Find the corresponding nozzle number from the preset blower database based on the area outside the specified range.

[0037] The nozzle number is a unique identifier used to identify which nozzle it belongs to. The database stores a mapping between out-of-area regions and nozzle numbers. This mapping is created by professionals in the field when designing the nozzles and recorded in the database. When the system receives an out-of-area request, it automatically retrieves the corresponding nozzle number from the database and outputs it.

[0038] Step 5: Determine the particle concentration in the region based on the particle concentration distribution model and the region beyond the designated area.

[0039] The particle region concentration is the particle detection concentration outside the designated region. You can directly read the particle detection concentration outside the designated region.

[0040] Step 6: Based on the current wind intensity and particle concentration in the region, find the enhancement magnitude from the preset enhancement database.

[0041] The enhancement margin refers to the percentage increase in airflow intensity required based on the current airflow intensity from the nozzle. The database stores the mapping relationship between the current airflow intensity, particle area concentration, and enhancement margin. Experts first blow air of varying intensities, then maintain different particle area concentrations under these intensities to establish the environment. After increasing the airflow to reduce the particle area concentration below the pollution concentration threshold, the corresponding airflow intensity is recorded. The enhancement margin is then calculated by dividing the enhanced airflow intensity by the unenhanced airflow intensity and recorded in the database. When the system receives the corresponding current airflow intensity and particle area concentration, it automatically retrieves the corresponding enhancement margin from the database and outputs it.

[0042] Step 7: Calculate the enhanced wind intensity based on the current wind intensity and the enhancement range.

[0043] Enhanced airflow intensity refers to the target increase in airflow intensity required from the nozzle based on the current airflow intensity. It is calculated by multiplying the current airflow intensity by the enhancement amount. Alternatively, this can be directly obtained from the database in step 6, which records the mapping relationship between the current airflow intensity, particle area concentration, and enhanced airflow intensity.

[0044] Step 8: Control the blower corresponding to the blower nozzle number to blow air with increased airflow intensity, while keeping the other blower nozzles unchanged.

[0045] This includes an optimization method for controlling the blower nozzles corresponding to the nozzle numbers to blow air in order to enhance the blowing intensity. This method includes: Step 80: Divide all the out-of-bounds areas according to the preset edge rules to determine the edge area, adjacent area, edge nozzle number, and adjacent nozzle number.

[0046] Boundary rules refer to pre-defined rules for defining spatial structures beyond the boundary region, with spatial boundary determination criteria at their core. A boundary region is the outermost spatial region beyond the boundary region. It is determined by the fact that if one of the adjacent regions on one side of a boundary region is not a boundary region, then it is considered a boundary region. Figure 3 Region A is shown. A neighboring region is an area that extends beyond the edge region. The method for determining a neighboring region is that if at least one side of the extending region is adjacent to an edge region, and it is not itself an edge region, then it is considered a neighboring region. For example... Figure 3 The area shown is region B. The edge nozzles are numbered according to the nozzle numbers corresponding to the edge region. The adjacent nozzles are numbered according to the nozzle numbers corresponding to the adjacent regions. The method for determining the edge nozzle numbers and adjacent nozzle numbers is the same as in step 4, and will not be repeated here.

[0047] Step 81: Find the corresponding edge enhancement amplitude and neighboring enhancement amplitude based on the edge region and the neighboring region respectively, and calculate the edge enhancement blowing intensity and the neighboring enhancement blowing intensity.

[0048] Edge enhancement amplitude is the enhancement amplitude corresponding to the edge region. Adjacent enhancement amplitude is the enhancement amplitude corresponding to the adjacent region. The lookup method is the same as in step 6, and will not be repeated here. Edge enhancement wind intensity is the enhancement wind intensity corresponding to the edge region. Adjacent enhancement wind intensity is the enhancement wind intensity corresponding to the adjacent region. The calculation method is the same as in step 7, and will not be repeated here.

[0049] Step 82: When the intensity of the nearby enhanced airflow is higher than that of the edge enhanced airflow, no optimization is performed.

[0050] Step 83: When the nearby enhanced blowing intensity is lower than the edge enhanced blowing intensity, calculate the suction blowing intensity based on the edge enhanced blowing intensity and the preset suction multiple.

[0051] A proportional coefficient, pre-set based on the cleanroom's spatial structure, the airflow characteristics of the blower nozzles, and the particle diffusion patterns, is used, for example, 3 to 5 times. This is determined by professionals in the field through actual production measurements. The suction blowing intensity is the blowing intensity that can entrain particles in the edge area while maintaining a positive blowing direction from the adjacent blower nozzles. It is calculated by multiplying the two.

[0052] Step 84: Control the blower corresponding to the adjacent blower number to blow air according to the suction blowing intensity.

[0053] Here, the airflow generated by the nearby nozzle is greater than that generated by the edge nozzle, thus creating negative pressure in the nearby area during airflow and attracting particles from the edge area to move to the nearby area.

[0054] This includes an optimization method for controlling the blowers corresponding to adjacent blower numbers to blow air according to the suction blowing intensity, the method comprising: Step 840: Based on the edge-enhanced blowing intensity and the suction blowing intensity, the corresponding expected edge intensity and expected suction intensity are obtained by scaling them down by the same arbitrary ratio.

[0055] The expected edge strength refers to the blowing strength obtained after the edge-enhancing blowing strength is synchronously reduced by an "arbitrary ratio". The expected suction strength refers to the blowing strength obtained after the suction blowing strength is synchronously reduced by an "arbitrary ratio". Here, the ratio refers to a fixed scaling factor (within the range of 0 < coefficient ≤ 1) pre-set or selected in real time by the control system for synchronously reducing the edge-enhancing blowing strength and the suction blowing strength. The calculation method is to multiply both the edge-enhancing blowing strength and the suction blowing strength by the same reduction ratio.

[0056] Step 841: Input the expected edge intensity, expected attraction intensity, and particle region concentration corresponding to the edge region and the adjacent region into the preset wind simulation model to obtain the remaining particle region concentration corresponding to the edge region and the adjacent region.

[0057] The airflow simulation model refers to a pre-constructed digital airflow-particle coupling simulation model. It can be built using mature CFD software (Fluent, STAR-CCM+). Basic parameters such as the cleanroom's spatial dimensions, nozzle positions / outlet angles, and spinning equipment layout are pre-entered. Then, experimental results are input. The experimental process involves blowing air into the space corresponding to different particle concentrations at different airflow intensities, observing the remaining particle concentration, and finally adjusting the model parameters. The remaining particle concentration refers to the final particle concentration remaining in the edge / adjacent area after calculation by the airflow simulation model, under the predicted edge and attraction intensities.

[0058] Step 842: Compare the concentrations of the two remaining particle regions with the pollution concentration threshold to obtain the concentration difference.

[0059] The concentration difference refers to the difference between the concentration of residual particles in the region and the pollution concentration threshold. It is calculated by subtracting the two.

[0060] Step 843: Adjust the ratio according to the concentration difference to update the expected edge strength and expected attraction strength, and then repeat steps 841 and 842 until one of the concentration differences is equal to 0 and the other concentration difference is less than 0. Define the expected edge strength at this time as the actual edge strength and the expected attraction strength at this time as the actual attraction strength.

[0061] The update method is as follows: if the concentration difference is still greater than 0, the ratio is increased; if the concentration difference is less than 0, the ratio is decreased. If one concentration difference is equal to 0 and the other concentration difference is less than 0, it means that the particles in both regions are cleaned up and the relationship between the actual attraction intensity and the actual edge intensity is still maintained.

[0062] Step 844: Control the blower corresponding to the edge blower number to blow according to the actual edge strength, and control the blower corresponding to the adjacent blower number to blow according to the actual suction strength.

[0063] This also includes: Step 845: Determine the regions other than the edge regions and adjacent regions based on the out-of-bounds region, edge region, and adjacent region.

[0064] Other regions refer to the space remaining after removing edge and adjacent regions from the regions outside the main regions. The method for determining this is comparison; if the region outside the main regions is neither an edge nor an adjacent region, then it is considered an other region.

[0065] Step 8450: When the preset air outlet area is the same as one of the other areas or adjacent areas, the air outlet area is defined as the central area.

[0066] The air outlet area refers to the area within the cleanroom where the air outlet is used to centrally discharge dispersed particles. This area is determined by observing which area the air outlet corresponds to after the spinning area structure is completed.

[0067] When the preset air outlet area is the same as one of the other areas or a neighboring area, it means that the particles in one area can be blown out directly.

[0068] Step 8451: When the air outlet area is the same as one of the edge areas, the edge area is defined as the target edge area, and the adjacent area corresponding to the target edge area is defined as the center area.

[0069] When the air outlet area is the same as one of the edge areas, it means that this area can also be blown out directly. However, if this area is blown out directly, it will cause the particles to spread. Therefore, the adjacent area needs to be defined as the central area.

[0070] Step 846: Divide the central area according to the preset step division rules to obtain a step area group.

[0071] The stepped division rule refers to the rules used to divide a central area into multiple levels, from the inside out / from strong to weak spatial divisions. A stepped area group is a combination of the extended areas of the same step formed after dividing the extended areas according to the stepped division rule. The division method here is as follows: Figure 4 As shown in the figure, the numbers in the figure represent the corresponding steps. First, the central area is taken as the first step, then the area extending around the central area is the second step, then the area extending around the second step is the third step, and so on to obtain the step area group.

[0072] Step 847: Set the corresponding out-of-range areas of the stepped area group according to the minimum actual edge strength and suction multiple to obtain the stepped blowing intensity corresponding to the out-of-range areas.

[0073] The stepped airflow intensity is the airflow intensity exceeding the designated area for each step after dividing the area into stepped zones. Here, the smallest stepped zone group is airflowed based on the minimum actual edge intensity. The airflow intensity for the next step zone group is then calculated by multiplying the minimum actual edge intensity by the suction factor, and so on. This setting is intended to provide a reference value, not the final airflow intensity.

[0074] Step 8470: When the stepped air blowing intensity is greater than the corresponding enhanced air blowing intensity, control the air nozzle number corresponding to the stepped area group to blow air according to the corresponding stepped air blowing intensity.

[0075] When the stepped airflow intensity is greater than the corresponding enhanced airflow intensity, it means that the stepped airflow intensity is sufficient to clean the particles at the corresponding location and also meets the requirement of the stepped airflow ratio. In this case, the air nozzle number corresponding to the stepped area group is controlled to blow air according to the corresponding stepped airflow intensity. Step 8471: When the stepped airflow intensity is less than the corresponding enhanced airflow intensity, update the corresponding stepped airflow intensity according to the enhanced airflow intensity and continue to set the stepped airflow intensity sequentially.

[0076] When the stepped airflow intensity is less than the corresponding enhanced airflow intensity, it means that the stepped airflow intensity requirement at this point is insufficient to meet the enhanced airflow intensity requirement. Therefore, the enhanced airflow intensity is still applied. However, at this time, the stepped airflow intensity corresponding to the next higher stepped area group cannot meet the airflow multiplier requirement. Therefore, the corresponding stepped airflow intensity needs to be updated according to the enhanced airflow intensity, and then the stepped airflow intensity is set again. After this process... Figure 4 The actual blowing intensity of the next higher level always meets the requirements of the blowing multiple and can also meet the requirements of increasing the blowing intensity.

[0077] This also includes: Step 848: When the air outlet area does not fall into the area beyond the air outlet area, determine the edge area closest to the air outlet area based on the air outlet area and the edge area, and define the edge area as the dynamic center area.

[0078] The dynamic center area is determined by calculating the distance between each edge area and the air outlet area, and the area with the smallest distance is the dynamic center area.

[0079] If the air outlet area does not fall into the area beyond the designated area, it means that the air cannot be blown in the manner of steps 845 to 8471. Therefore, it is necessary to gradually blow the particles toward the air outlet area.

[0080] Step 849: After performing steps 846 to 8471 according to the central region, re-acquire the particle detection concentration, and continue to perform steps 845 to 8471 until the air outlet area falls into the area beyond the limit.

[0081] This includes an optimized method for blowing particles when the air outlet area does not fall into the area beyond the designated area. This method includes: Step 8480: When the air outlet area does not fall into the area beyond the outlet area, determine the adjacent area based on the air outlet area.

[0082] The adjacent area is the area adjacent to the air outlet area. For example... Figure 5 As shown, Y is the air outlet area, and X is the area beyond the outlet area, so the adjacent area is Y'.

[0083] Step 8481: Draw tangent line segments based on adjacent areas and areas beyond the boundary.

[0084] A tangent line segment is an auxiliary line segment that connects the adjacent region (Y') and the extended region (X) and is exactly "tangent" to the boundaries of both. The drawing method involves first extracting the outer contour boundaries of the adjacent region and the extended region, then traversing the boundary points to find a line segment that has one end on the outer contour boundary of the adjacent region and the other end on the outer contour boundary of the extended region. This line segment also intersects with both the outer contour boundaries of the adjacent and extended regions at only one point. For example... Figure 5 The L1 and L2 shown are illustrated.

[0085] Step 8482: Determine the expanded excess area based on the tangent line segment, adjacent area, air outlet area, and excess area, and update it to the excess area.

[0086] The expanded area is defined as a new area extending from the original expanded area towards adjacent areas and the air outlet area, with the tangent line segment as the geometric boundary. The determination method is as follows: Figure 5 As shown, the area enclosed by the tangent line segment, the adjacent region, and the extended region is the expanded extended region.

[0087] Step 8483: Execute steps 845 through 8471.

[0088] This also includes a method for controlling whether the blower corresponding to the adjacent blower number blows according to the suction blowing intensity, the method including: Step 85: Analyze the edge area and the preset overall box area to determine the edge situation.

[0089] The overall box area refers to the complete space within the key spinning area. The edge condition refers to the condition corresponding to the edge areas. Here, attribute labels are set for each area, such as labels for "attached to walls," etc. The method for determining this is to first match the edge areas to the overall box area, and then determine the labels.

[0090] Step 86: When the edge condition is the preset wall-attached condition, control the air nozzle corresponding to the adjacent air nozzle number to blow air according to the corresponding enhanced air blowing intensity.

[0091] The "wall-attached" situation refers to the edge area being adjacent to the inner wall of the enclosure. When the edge is in the wall-attached situation, it means that the inner wall forms a physical barrier, preventing particles from diffusing outwards. Therefore, it is not necessary to use the nearby nozzle corresponding to the nozzle number to blow air at the suction blowing intensity to generate negative pressure; normal blowing is sufficient.

[0092] Step 87: When the edge condition is not the wall-attached condition, control the blower corresponding to the adjacent blower number to blow according to the suction blowing intensity.

[0093] This includes an optimized method for blowing air from the nozzle corresponding to the edge nozzle number when the edge condition is wall-attached. This method includes: Step 860: Define the enhanced blowing intensity corresponding to the edge nozzle number as the edge blowing intensity, and define the enhanced blowing intensity corresponding to the adjacent nozzle number as the adjacent blowing intensity.

[0094] Step 861: Retrieve historical particle detection concentration and historical air outlet particle concentration.

[0095] Historical particle detection concentration refers to the particle concentration detected in polluted areas (such as areas outside the control zone, edge areas, adjacent areas, and other areas) during past control cycles, including timestamps. Historical outlet particle concentration refers to the particle concentration detected in the outlet area during past control cycles, also including timestamps. Retrieval is achieved by recording the concentration during each acquisition process and then retrieving it from the records.

[0096] It is important to note that the particle concentration at the air outlet is determined by measuring the particle concentration at the air outlet after all the particles are blown out to the air outlet and then converge there.

[0097] Step 862: Calculate the difference between the historical particle detection concentration and the historical air outlet particle concentration, and define this difference as the wall-attached particle concentration.

[0098] Wall-attached particle concentration refers to the equivalent concentration of particles attached to the wall. Since the previous steps should have resulted in no excessive particles in the entire space after treatment, any discrepancy indicates the presence of residual particles that the detection instrument cannot identify, suggesting they may be attached to the wall. The calculation method is the sum of historical particle concentrations detected during the same process minus the historical outlet particle concentration.

[0099] Step 863: When the concentration of attached particles is less than the preset cleaning concentration threshold, the blower corresponding to the edge blower number blows according to the edge blowing intensity.

[0100] The cleaning concentration threshold refers to the concentration level above which cleaning is necessary and may overflow, affecting the spinning process. It is set by those skilled in the art.

[0101] When the concentration of attached particles is less than the preset cleaning concentration threshold, it means that the wall does not need to be cleaned. In this case, the particles in the normal cleaning area can be cleaned, and the blower corresponding to the edge blower number blows according to the edge blowing intensity.

[0102] Step 864: When the concentration of attached particles is greater than the cleaning concentration threshold and the edge blowing intensity is greater than the preset cleaning blowing intensity, the blowing nozzle corresponding to the edge blowing nozzle number blows according to the edge blowing intensity.

[0103] The cleaning blowing intensity is the blowing intensity at which particles on the wall can be blown away when blowing in the edge area. When the concentration of attached particles is greater than the cleaning concentration threshold and the edge blowing intensity is greater than the preset cleaning blowing intensity, it means that the particles on the wall can also be blown off the wall and blown away together according to the edge blowing intensity. In this case, the blowing nozzle corresponding to the edge blowing nozzle number blows according to the edge blowing intensity.

[0104] Step 865: When the concentration of attached particles is greater than the cleaning concentration threshold but the edge blowing intensity is less than the cleaning blowing intensity, and the adjacent blowing intensity is greater than the cleaning blowing intensity, the blowing nozzle corresponding to the edge blowing nozzle number blows according to the cleaning blowing intensity.

[0105] When the concentration of attached particles is greater than the cleaning concentration threshold but the edge blowing intensity is less than the cleaning blowing intensity, it means that the cleaning blowing intensity is required to clean the wall. If the adjacent blowing intensity is greater than the cleaning blowing intensity, it means that blowing according to the cleaning blowing intensity will not attract particles from the adjacent area to the edge area. Therefore, the blowing nozzle corresponding to the edge blowing nozzle number blows according to the cleaning blowing intensity.

[0106] Step 866: When the concentration of attached particles is greater than the cleaning concentration threshold but the edge blowing intensity is less than the cleaning blowing intensity, and the adjacent blowing intensity is less than the cleaning blowing intensity, the blowing nozzle corresponding to the edge blowing nozzle number blows according to the adjacent blowing intensity.

[0107] When the concentration of attached particles is greater than the cleaning concentration threshold but the edge blowing intensity is less than the cleaning blowing intensity, it means that if the wall surface is to be cleaned, the cleaning blowing intensity is required. However, the adjacent blowing intensity is less than the cleaning blowing intensity. In order to avoid the particles in the adjacent area being attracted, the adjacent blowing intensity can be used, although the wall surface particle cleaning effect is poor at this time.

[0108] The method for blowing air according to the adjacent blowing intensity for the edge blowing nozzle number includes: Step 8660: Calculate the difference in blowing intensity based on the nearby blowing intensity and the cleaning blowing intensity.

[0109] The difference in blowing intensity is the difference between the blowing intensity of the adjacent airflow and the blowing intensity of the cleaning airflow. It is calculated by subtracting the two.

[0110] Step 8661: Find the corresponding pulse frequency from the preset pulse database based on the concentration of attached particles, the intensity of nearby blowing, and the difference in blowing intensity.

[0111] The pulse frequency is the switching frequency of intermittent pulsed blowing based on the nearby blowing intensity. The pulse database stores the mapping relationship between attached particle concentration, nearby blowing intensity, blowing intensity difference, and pulse frequency. Under normal circumstances, a person skilled in the art blows at the edge blowing intensity, and then applies nearby blowing intensities at different pulse frequencies. After the attached particle concentration is stripped and cleared to below the clearing concentration threshold, the corresponding pulse frequency is recorded. When the system receives the attached particle concentration, nearby blowing intensity, and blowing intensity difference, it automatically retrieves the pulse frequency from the database and outputs it.

[0112] Step 8662: Update the edge blowing intensity based on the attached particle concentration to obtain the pulsed edge blowing intensity.

[0113] The pulsed edge blowing intensity is the edge blowing intensity required to cause a change in the concentration of attached particles after they fall into the edge region. The update method involves adding the attached particle concentration to the detected particle concentration in the edge region to obtain the actual detected particle concentration in the edge region, and then finding the enhanced blowing intensity as described above.

[0114] Step 8663: The blower corresponding to the edge blower number blows according to the pulse edge blower intensity and then changes to the adjacent blower intensity according to the pulse frequency until the concentration of attached particles is less than the preset cleaning concentration threshold.

[0115] Based on the same inventive concept, embodiments of the present invention provide a production system for medical antibacterial and breathable composite fibers.

[0116] A production system for medical antibacterial and breathable composite fibers includes: The acquisition module is used to acquire particle detection concentration and current wind intensity; A memory for storing a program for producing a medical antibacterial and breathable composite fiber; The processor loads and executes programs from memory.

[0117] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0118] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for producing a medical antibacterial and breathable composite fiber, characterized in that, include: Step 1: Obtain the particle detection concentration and current airflow intensity set within the clean area; Step 2: When there is a particle detection concentration greater than the preset pollution concentration threshold, a simulation is performed based on the particle detection concentration to obtain a particle concentration distribution model; Step 3: Determine the out-of-bounds area based on the particle concentration distribution model and the preset concentration threshold plane; Step 4: Find the corresponding nozzle number from the preset blower database based on the area outside the specified range; Step 5: Determine the particle concentration in the region based on the particle concentration distribution model and the region beyond the designated area; Step 6: Based on the current wind intensity and particle concentration in the region, find the enhancement magnitude from the preset enhancement database; Step 7: Calculate the enhanced wind intensity based on the current wind intensity and the enhancement range; Step 8: Control the blower corresponding to the blower nozzle number to blow air with increased air intensity, and keep the other blower nozzles unchanged.

2. The method for producing a medical antibacterial and breathable composite fiber according to claim 1, characterized in that, It also includes an optimization method for controlling the blower nozzles corresponding to the nozzle numbers to blow air in order to enhance the blowing intensity, the method including: Step 80: Divide all the out-of-bounds areas according to the preset edge rules to determine the edge area, adjacent area, edge nozzle number, and adjacent nozzle number; Step 81: Find the corresponding edge enhancement amplitude and neighboring enhancement amplitude based on the edge region and the neighboring region respectively, and calculate the edge enhancement blowing intensity and the neighboring enhancement blowing intensity; Step 82: When the intensity of the adjacent enhanced blowing is higher than that of the edge enhanced blowing, no optimization is performed; Step 83: When the intensity of the adjacent enhanced blowing is lower than that of the edge enhanced blowing, the suction blowing intensity is calculated based on the edge enhanced blowing intensity and the preset suction multiple. Step 84: Control the blower corresponding to the adjacent blower number to blow air according to the suction blowing intensity.

3. The method for producing a medical antibacterial and breathable composite fiber according to claim 2, characterized in that, It also includes an optimization method for controlling the blowers corresponding to adjacent blower numbers to blow air according to the suction blowing intensity, the method including: Step 840: Based on the edge-enhanced blowing intensity and the suction blowing intensity, reduce them by the same arbitrary ratio to obtain the corresponding expected edge intensity and expected suction intensity; Step 841: Input the expected edge intensity, expected attraction intensity, and particle region concentration corresponding to the edge region and adjacent region into the preset wind simulation model to obtain the remaining particle region concentration corresponding to the edge region and adjacent region; Step 842: Compare the concentrations of the two remaining particle regions with the pollution concentration thresholds to obtain the concentration difference; Step 843: Adjust the ratio according to the concentration difference to update the expected edge strength and expected attraction strength, and then repeat steps 841 and 842 until one of the concentration differences is equal to 0 and the other concentration difference is less than 0. Define the expected edge strength at this time as the actual edge strength and the expected attraction strength at this time as the actual attraction strength. Step 844: Control the blower corresponding to the edge blower number to blow according to the actual edge strength, and control the blower corresponding to the adjacent blower number to blow according to the actual suction strength.

4. The method for producing a medical antibacterial and breathable composite fiber according to claim 3, characterized in that, Also includes: Step 845: Determine the regions other than the edge regions and adjacent regions based on the out-of-bounds region, edge region, and adjacent region; Step 8450: When the preset air outlet area is the same as one of the other areas or adjacent areas, the air outlet area is defined as the central area; Step 8451: When the air outlet area is the same as one of the edge areas, the edge area is defined as the target edge area, and the adjacent area corresponding to the target edge area is defined as the center area; Step 846: Divide the central area according to the preset step division rules to obtain a step area group; Step 847: Set the corresponding out-of-range areas of the stepped area group according to the minimum actual edge strength and suction multiple to obtain the stepped blowing intensity corresponding to the out-of-range areas. Step 8470: When the stepped air blowing intensity is greater than the corresponding enhanced air blowing intensity, control the air nozzle number corresponding to the stepped area group to blow air according to the corresponding stepped air blowing intensity; Step 8471: When the stepped airflow intensity is less than the corresponding enhanced airflow intensity, update the corresponding stepped airflow intensity according to the enhanced airflow intensity and continue to set the stepped airflow intensity sequentially.

5. The method for producing a medical antibacterial and breathable composite fiber according to claim 4, characterized in that, Also includes: Step 848: When the air outlet area does not fall into the area beyond the air outlet area, determine the edge area closest to the air outlet area based on the air outlet area and the edge area, and define the edge area as the dynamic center area. Step 849: After performing steps 846 to 8471 according to the central region, re-acquire the particle detection concentration, and continue to perform steps 845 to 8471 until the air outlet area falls into the area beyond the limit.

6. The method for producing a medical antibacterial and breathable composite fiber according to claim 5, characterized in that, It also includes an optimized method for blowing particles when the air outlet area does not fall into the area beyond the designated area. This method includes: Step 8480: When the air outlet area does not fall into the area beyond the designated area, determine the adjacent area based on the air outlet area; Step 8481: Draw tangent line segments based on adjacent areas and areas beyond the boundary; Step 8482: Determine the expanded area based on the tangent line segment, adjacent area, air outlet area, and expanded area, and update it to the expanded area; Step 8483: Execute steps 845 through 8471.

7. The method for producing a medical antibacterial and breathable composite fiber according to claim 2, characterized in that, It also includes a method for controlling whether the blower corresponding to the adjacent blower number blows according to the suction blowing intensity, the method including: Step 85: Analyze the edge region and the preset overall box area to determine the edge situation; Step 86: When the edge condition is the preset wall-attached condition, control the air nozzle corresponding to the adjacent air nozzle number to blow air according to the corresponding enhanced air blowing intensity; Step 87: When the edge condition is not the wall-attached condition, control the blower corresponding to the adjacent blower number to blow according to the suction blowing intensity.

8. The method for producing a medical antibacterial and breathable composite fiber according to claim 7, characterized in that, It also includes an optimized method for blowing air from the nozzle corresponding to the edge nozzle number when the edge condition is wall-hugging. This method includes: Step 860: Define the enhanced blowing intensity corresponding to the edge blower number as the edge blowing intensity, and define the enhanced blowing intensity corresponding to the adjacent blower number as the adjacent blowing intensity; Step 861: Retrieve historical particle detection concentrations and historical air outlet particle concentrations; Step 862: Calculate the difference between the historical particle detection concentration and the historical air outlet particle concentration, and define this difference as the wall-attached particle concentration; Step 863: When the concentration of attached particles is less than the preset cleaning concentration threshold, the blower corresponding to the edge blower number blows according to the edge blowing intensity; Step 864: When the concentration of attached particles is greater than the cleaning concentration threshold and the edge blowing intensity is greater than the preset cleaning blowing intensity, the blowing nozzle corresponding to the edge blowing nozzle number blows according to the edge blowing intensity. Step 865: When the concentration of attached particles is greater than the cleaning concentration threshold but the edge blowing intensity is less than the cleaning blowing intensity, and the adjacent blowing intensity is greater than the cleaning blowing intensity, the blowing nozzle corresponding to the edge blowing nozzle number blows according to the cleaning blowing intensity. Step 866: When the concentration of attached particles is greater than the cleaning concentration threshold but the edge blowing intensity is less than the cleaning blowing intensity, and the adjacent blowing intensity is less than the cleaning blowing intensity, the blowing nozzle corresponding to the edge blowing nozzle number blows according to the adjacent blowing intensity.

9. A method for producing a medical antibacterial and breathable composite fiber according to claim 8, characterized in that, The method for blowing air according to the nearest blowing intensity for the edge blower nozzle number includes: Step 8660: Calculate the difference in blowing intensity based on the nearby blowing intensity and the cleaning blowing intensity; Step 8661: Find the corresponding pulse frequency from the preset pulse database based on the concentration of attached particles, the nearby blowing intensity, and the difference in blowing intensity; Step 8662: Update the edge blowing intensity based on the wall-attached particle concentration to obtain the pulsed edge blowing intensity; Step 8663: The blower corresponding to the edge blower number blows according to the pulse edge blower intensity and then changes to the adjacent blower intensity according to the pulse frequency until the concentration of attached particles is less than the preset cleaning concentration threshold.

10. A production system for medical antibacterial and breathable composite fibers, characterized in that, include: The acquisition module is used to acquire particle detection concentration and current wind intensity; A memory for storing a program for producing a medical antibacterial and breathable composite fiber as described in any one of claims 1 to 9; The processor loads and executes programs from memory.

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