Fabric softening treatment method and device

Abstract

The invention provides a fabric softening treatment method and device using a Venturi effect. The method comprises the following steps: preheating the fabric; a high-speed fan system is adopted to generate high-speed airflow, and the pretreated fabric is fed into a Venturi pipeline system with a variable wind direction to be treated; and performing controlled impact deformation on the fabric subjected to airflow treatment through an impact grating system provided with a plurality of layers of angle-adjustable gratings. According to the invention, a chemical softening agent is not needed, environment-friendly softening treatment of the fabric is realized through the synergistic effect of the Venturi effect and the multiple layers of adjustable grids, the bulkiness and softness of the fabric are effectively improved, and the uniformity and durability of the softening effect are improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of textile processing, and in particular to a method and device for softening a fabric. Background Art

[0002] Fabric softening is an important process in textile processing, which is of great significance to improving the wearing comfort and performance of fabrics. At present, fabric softening mainly adopts two methods: chemical softener and mechanical softener.

[0003] In the related art, chemical softeners improve the feel by forming a soft film on the surface of fabrics. Although this method can achieve a certain softening effect, the use of chemical softeners not only affects the air permeability and water absorption of fabrics, but also causes environmental pollution, which does not meet the current requirements of environmentally friendly production.

[0004] Traditional mechanical softening methods mainly include physical actions such as rolling and friction. Although this method avoids the use of chemicals, it is easy to cause the strength of the fabric to decrease during the treatment process. At the same time, since the mechanical force is difficult to distribute evenly, it often causes local damage to the fabric, and the treatment effect is not long-lasting.

[0005] In summary, the main problems with the relevant technologies are that chemical softening treatment will affect the functional performance of the fabric and cause environmental pollution; while traditional mechanical softening methods are prone to reduce the strength of the fabric and it is difficult to simultaneously improve the fluffiness and softness of the fabric. Summary of the invention

[0006] In view of this, the present disclosure provides a fabric softening treatment method and device, which solves the problems in the related art that chemical softeners affect the functional properties of fabrics and pollute the environment, and that mechanical softening methods easily lead to reduced fabric strength.

[0007] In one aspect, an embodiment of the present disclosure provides a fabric softening method using the Venturi effect, comprising:

[0008] performing preheat treatment on the fabric to obtain pretreated fabric;

[0009] A high-speed fan system is used to generate a high-speed airflow, and the pretreated fabric is sent into a venturi pipe system with a variable wind direction for treatment to obtain the fabric treated by the airflow;

[0010] The fabric treated by the airflow is passed through an impact grid system provided with multiple layers of grids with adjustable angles, so that the fabric undergoes controlled impact deformation, thereby obtaining the fabric treated by softening.

[0011] In one embodiment, the Venturi pipe system includes a wind direction switching device and an intelligent tension control device, wherein the wind direction switching device includes a guide blade group driven by a servo motor, which is used to achieve periodic changes in the direction of the airflow, and the intelligent tension control device includes a tension sensor and a servo drive roller arranged at the inlet and outlet ends, which are used to control the fabric to perform reciprocating motion of a preset frequency in the Venturi tube, and through the reciprocating motion, the fabric repeatedly undergoes the transition from high-pressure area to low-pressure area, thereby producing a periodic compression-expansion effect.

[0012] In one embodiment, the preheating of the fabric to obtain the pretreated fabric comprises:

[0013] Acquiring fiber type information of the fabric, adjusting the preheating temperature according to the glass transition temperature of the fiber type, and producing preheated fabric;

[0014] Based on the preheated fabric, the fabric is adjusted to a preset tension value by a tension control device to obtain the pretreated fabric.

[0015] In one embodiment, the Venturi pipe system adopts a variable cross-section structure; the method of sending the pretreated fabric into the Venturi pipe system with variable wind direction for treatment includes:

[0016] Airflow is applied to the fabric under preset duct parameters;

[0017] The fabric after airflow treatment is adjusted by using a variable cross-section structure;

[0018] The adjusted fabric is subjected to a buffering treatment by a multi-stage buffering system;

[0019] The fabric after buffering treatment is omni-directionally regulated by the airflow field regulating system.

[0020] In one embodiment, the airflow treatment of the fabric under preset pipeline parameters includes:

[0021] Acquiring preset pipeline parameters, adjusting the shrinkage ratio and inner surface state of the shrinkage section according to the preset pipeline parameters, and sending the pretreated fabric into the shrinkage section to produce a first airflow-treated fabric;

[0022] Based on the first airflow-treated fabric, sending it into a throat section with an elliptical cross-section structure for airflow treatment to produce a second airflow-treated fabric;

[0023] Based on the second airflow-treated fabric, the fabric is sent into an expansion section set at a preset expansion angle for airflow treatment to obtain the fabric treated by the airflow.

[0024] In one embodiment, the variable cross-section structure is used to adjust the fabric after airflow treatment, including:

[0025] Based on the fabric treated by airflow, in the contraction section, the airflow speed is increased from a first preset speed to a second preset speed, and the pressure is reduced from the first preset pressure to the second preset pressure, so as to produce a first airflow treated fabric;

[0026] performing airflow impact treatment on the throat of the first airflow treated fabric to produce a second airflow treated fabric;

[0027] Based on the second airflow-treated fabric, the airflow velocity and pressure are restored to preset values ​​in the expansion section to obtain the airflow-treated fabric.

[0028] In one embodiment, the buffering treatment of the adjusted fabric by a multi-stage buffering system comprises:

[0029] Acquiring a fabric movement speed parameter, and adjusting the air flow speed to a first preset buffer value through the first buffer cavity according to the movement speed parameter, thereby generating a first buffer air flow;

[0030] Based on the first buffer airflow, the airflow pulsation pressure is adjusted to a second preset buffer value through the second buffer cavity to generate a second buffer airflow;

[0031] Based on the second buffer airflow, the airflow stability is adjusted to a third preset buffer value through the third buffer cavity to produce the airflow-treated fabric.

[0032] In one embodiment, the airflow field control system is used to perform all-round control on the fabric after buffering, including:

[0033] Acquiring fabric processing parameters, and adjusting the motion trajectory of the fabric through a variable pitch spiral processing chamber according to the fabric processing parameters to generate a first trajectory to process the fabric;

[0034] Based on the fabric processed by the first trajectory, a three-dimensional airflow field of a preset intensity is generated by a vortex generator, so that the fabric obtains an omnidirectional airflow effect, thereby producing a fabric processed by a second trajectory;

[0035] The fabric is processed based on the second trajectory, and the fabric is vibrated at a preset frequency by an ultrasonic processing unit to produce the fabric processed by the airflow.

[0036] In one embodiment, the step of passing the airflow-treated fabric through an impact grille system having multiple layers of adjustable angle grilles comprises:

[0037] Obtaining the fabric treated by the airflow, and passing the fabric through a first layer of grids at a first preset angle to generate a first deformed fabric;

[0038] Based on the first deformable fabric, the fabric is passed through a second layer of grid at a second preset angle to produce a second deformable fabric;

[0039] Based on the second deformed fabric, the fabric is passed through a third grid layer at a third preset angle to obtain the deformed fabric.

[0040] In one embodiment, the method further comprises:

[0041] An intelligent temperature control system is used to monitor and adjust the processing temperature of the fabric after the controlled impact deformation treatment in real time, so that the fabric is kept at an optimal plasticizing temperature to obtain the fabric after the temperature control treatment;

[0042] An online detection system is used to monitor the fluffiness and softness of the fabric after the temperature control treatment in real time, and the number of cycles of the fabric in the Venturi pipe system is dynamically adjusted according to the monitoring results to obtain the fabric after the softening treatment.

[0043] In one embodiment, the online detection system is used to monitor the fluffiness and softness of the fabric after the temperature control treatment in real time, including:

[0044] A high-speed industrial camera is used to obtain a surface morphology image of the fabric after the temperature control treatment, and the distribution density of the fluff on the surface of the fabric is analyzed to generate morphology analysis data;

[0045] Based on the morphological analysis data, using a three-dimensional profile scanner to measure the three-dimensional undulation of the fabric to generate fabric profile data;

[0046] Based on the fabric contour data, the thickness, weight and curvature parameters of the fabric are measured by a fabric physical property detector to generate fabric property data;

[0047] The number of cycles of the fabric in the Venturi piping system is dynamically adjusted according to the fabric characteristic data.

[0048] In one embodiment, the intelligent temperature control system is used to monitor and adjust the processing temperature of the fabric after the controlled impact deformation process in real time, including:

[0049] Acquiring fabric temperature parameters, and adjusting the fabric temperature to a first preset temperature value through a far-infrared heating device according to the fabric temperature parameters, to produce a first temperature treated fabric;

[0050] Based on the first temperature treated fabric, adjusting the temperature control accuracy to a second preset temperature value through the double jacket insulation zone to produce a second temperature treated fabric;

[0051] Based on the second temperature-treated fabric, the temperature is lowered to a third preset temperature value through a water mist cooling and a cold air setting device to produce the temperature-controlled treated fabric.

[0052] On the other hand, the present disclosure also provides a fabric softening treatment device using the Venturi effect, comprising:

[0053] A preheating module is used to preheat the fabric to obtain the pretreated fabric;

[0054] A venturi pipe system processing module is used to generate a high-speed airflow using a high-speed fan system, and send the pretreated fabric into a venturi pipe system with a variable wind direction for processing to obtain fabric treated by airflow;

[0055] The impact grid processing module is used to pass the airflow-treated fabric through an impact grid system provided with multiple layers of angle-adjustable grids, so as to cause the fabric to produce controlled impact deformation and obtain softened fabric.

[0056] The present disclosure discloses any one of the above aspects or any implementation of any one of the aspects, using the synergistic effect of the Venturi effect and the multi-layer adjustable grille, without the use of chemical softeners, to achieve environmentally friendly softening of fabrics, avoiding the impact of chemicals on the functional performance of fabrics and environmental pollution problems. In addition, the present disclosure uses a variable wind direction Venturi pipe system to make the fabric reciprocate during the treatment process, effectively achieving the improvement of the fluffiness and softness of the fabric.

[0057] In addition, the present disclosure combines a wind direction switching device and an intelligent tension control device, so that the fabric undergoes a reciprocating motion at a preset frequency during the processing, thereby generating a periodic compression-expansion effect, thereby effectively improving the uniformity of the softening process.

[0058] Furthermore, the present invention adopts a multi-level buffer system and an airflow field control system to achieve all-round softening of fabrics, while avoiding the problem of reduced fabric strength caused by traditional mechanical softening methods. In addition, the present invention realizes real-time optimization and adjustment of processing parameters through the coordinated use of an intelligent temperature control system and an online detection system, significantly improving the durability of the softening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following is a brief introduction to the drawings required for use in the embodiments. The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and are used together with the specification to illustrate the technical solutions of the present disclosure. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can also be obtained based on these drawings without creative work.

[0060] Figure 1 A schematic diagram of a fabric softening method according to an embodiment of the present disclosure;

[0061] Figure 2 A schematic diagram of a preheating process provided in an embodiment of the present disclosure;

[0062] Figure 3 A schematic diagram of a process of feeding fabric provided by an embodiment of the present disclosure into a venturi pipe system with variable wind direction for treatment;

[0063] Figure 4 A schematic diagram of a process for producing controlled impact deformation of a fabric provided by an embodiment of the present disclosure;

[0064] Figure 5 A schematic diagram of a process for adjusting the number of cycles of a fabric in a venturi pipe system provided by an embodiment of the present disclosure;

[0065] Figure 6 A schematic structural diagram of a fabric softening treatment device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The components of the embodiments of the present disclosure generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the drawings is not intended to limit the scope of the present disclosure for protection, but merely represents the selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present disclosure.

[0067] like Figure 1 As shown, the present disclosure provides a fabric softening method, comprising the following steps:

[0068] S101: preheating the fabric to obtain pretreated fabric.

[0069] In this step, by preheating the fabric in the combustion chamber, the fiber temperature can reach above the glass transition temperature, becoming soft, and the yarn is more easily bent under the impact of the grid, resulting in a better soft and fluffy effect.

[0070] In addition, the fabric before the preheat treatment here can be a fabric that has undergone certain finishing processes, such as one or more of the following treatments: mixing with a cylinder, hot steaming, pre-setting, dyeing, dehydration, drying, setting and adding auxiliary agents, front side sanding, back side brushing, back side combing, and back side shearing.

[0071] In a specific implementation, the above-mentioned preheating process may include:

[0072] S1.1: Obtaining fiber type information of the fabric, adjusting the preheating temperature according to the glass transition temperature of the fiber type, and producing a preheated fabric.

[0073] The fabric preheating treatment in this embodiment adopts an intelligent fiber identification and temperature control system. When obtaining the fiber type information of the fabric, the composition information of the fabric can be entered by the operator, or it can be obtained through the automatic detection system. The system has a built-in database of glass transition temperatures of various types of fibers, among which the glass transition temperature range of polyester fiber is 75-85°C, nylon fiber is 60-70°C, and acrylic fiber is 80-90°C. These temperature parameters provide a precise control basis for the subsequent preheating process.

[0074] In the specific implementation of the preheating system, this embodiment can use a far-infrared heating device. The device can be equipped with 8 groups of quartz heating tubes, each with a power of 2kW, and the surface temperature of the heating tubes can reach 600°C. In order to ensure heating uniformity, a special parabolic reflector is designed around the heating tube. This design allows the heat radiation to evenly cover the entire fabric width, effectively avoiding the occurrence of local overheating.

[0075] In terms of temperature control, the system uses the Proportional-Integral-Derivative (PID) algorithm to achieve precise control. Specifically, the heating rate is first set to 2°C / second, and the fabric surface temperature is monitored in real time through a multi-point infrared temperature measurement system. The system automatically adjusts the heating power according to the temperature measurement results to ensure that the temperature control accuracy is maintained within the range of ±0.5°C. This precise temperature control is of great significance to ensure the consistency of the fabric preheating effect.

[0076] S1.2: Based on the preheated fabric, the fabric is adjusted to a preset tension value by a tension control device to obtain the pretreated fabric.

[0077] Fabric tension control is a key link to ensure the effect of subsequent processing. The tension control device designed in this embodiment can adopt a high-precision tension sensor and a servo drive roller system to work together. Among them, the high-precision tension sensor is installed at the inlet and outlet of the fabric, with a measurement accuracy of ±0.1N and a response time of less than 10ms, and can monitor the changes in fabric tension in real time. The servo drive roller system is driven by a professional-grade servo motor with a speed range of 0-1000rpm, a speed accuracy of ±0.1rpm, and a torque limiting function, which can effectively prevent the fabric from being subjected to excessive tension.

[0078] During actual operation, the tension closed-loop control system will first retrieve the recommended preset tension value from the database based on the characteristics of the fabric. Subsequently, the current tension of the fabric is collected in real time through the tension sensor, and the control system automatically adjusts the speed and torque of the servo drive roller according to the collected tension deviation, thereby ensuring that the fabric tension is always maintained within the range of ±5% of the preset value. In addition, this embodiment also develops an intelligent tension compensation function, detects the tension distribution in the width direction of the fabric in real time, and uses partition control technology to implement differentiated tension adjustment in different areas of the fabric, effectively solving the problem of uneven lateral tension of the fabric. This series of precise tension control measures provides an important guarantee for the subsequent softening effect of the fabric.

[0079] S102: using a high-speed fan system to generate a high-speed airflow, and sending the pretreated fabric into a venturi pipe system with a variable wind direction for treatment, so as to obtain the fabric treated by the airflow.

[0080] In this step, a high-speed fan system is used to generate high-speed airflow. Driven by the high-speed airflow, the fabric performs multiple reciprocating motions in the Venturi tube. The fabric can move from the high-pressure area to the low-pressure area in the tube multiple times to obtain a pressure difference, thereby achieving a fluffy effect like popcorn.

[0081] The design of the high-speed fan system in this embodiment can adopt an innovative bidirectional high-speed fan configuration scheme. The system uses two symmetrically arranged high-speed centrifugal fans. The air inlet adopts a variable frequency speed control device, which can accurately adjust the air flow speed according to the characteristics of different fabrics. At the same time, the system is equipped with a high-efficiency filtering device to ensure the cleanliness of the air entering the processing system and avoid contamination or damage to the fabric caused by impurities.

[0082] The design of the Venturi piping system allows for a unique variable cross-section structure. First, the entire pipe is made of high-strength wear-resistant alloy, and the inner surface is specially polished to reduce airflow resistance and fabric wear. The contraction section of the pipe adopts a progressive contraction design with a contraction ratio of 4:1 and a contraction section length of 1.2 meters. This design not only fully accelerates the airflow, but also avoids turbulence caused by airflow separation. The throat section innovatively adopts a customized elliptical cross-section with a length of 0.3 meters. This design allows the fabric to obtain a more uniform airflow effect when passing through. The expansion section adopts a 7-degree expansion angle design with a length of 1.5 meters. The optimized expansion angle can effectively prevent airflow separation while ensuring that the pressure can be smoothly restored.

[0083] As the fabric passes through the Venturi piping system, it undergoes a significant cycle of pressure changes. Specifically, when the fabric enters the contraction section, as the cross-sectional area decreases, the airflow velocity gradually increases from the initial 30m / s to 120m / s, and the pressure decreases from normal pressure to 0.6 atmospheres. When it reaches the throat, the fabric is subjected to the greatest airflow impact and the lowest static pressure environment, at which time the gaps between the fabric fibers will expand instantaneously. When the fabric enters the expansion section, the airflow velocity gradually decreases and the pressure gradually returns to normal pressure. During this process, the fabric will experience mild compression. This periodic pressure change can effectively relax the internal structure of the fabric and increase the activity space of the fibers.

[0084] In order to ensure that the movement trajectory of the fabric in the Venturi pipe is controllable, an intelligent guiding device is designed in this embodiment. The device consists of multiple groups of photoelectric sensors and airflow guide plates, which can monitor the movement state of the fabric in real time and control the movement trajectory of the fabric by adjusting the angle of the guide plate. In addition, the entire Venturi pipe system adopts a modular design, and pipe components of different specifications can be quickly replaced according to the characteristics of different fabrics, which significantly improves the adaptability and production efficiency of the system. It should be noted that through this innovative high-speed airflow processing solution, the fabric can be fully exposed to the airflow in a controllable environment, which not only ensures the uniformity of the processing effect, but also avoids mechanical damage to the fabric.

[0085] In a specific implementation, the structural features of the Venturi piping system may include:

[0086] The Venturi pipe system includes a wind direction switching device and an intelligent tension control device, including:

[0087] The wind direction switching device includes a guide blade group driven by a servo motor, which is used to achieve periodic changes in the direction of the airflow. The intelligent tension control device includes a tension sensor and a servo drive roller arranged at the inlet end and the outlet end, which are used to control the fabric to perform reciprocating motion of a preset frequency in the Venturi tube, and through the reciprocating motion, the fabric repeatedly undergoes the conversion from the high-pressure area to the low-pressure area, thereby producing a periodic compression-expansion effect.

[0088] Specifically, the venturi pipe system of the embodiment of the present disclosure is mainly composed of a wind direction switching device and an intelligent tension control device. Among them, the wind direction switching device can be set in the middle position of the venturi pipe, including a group of symmetrically arranged guide blades, which are connected to the servo motor through a connecting shaft. One end of each guide blade is fixed to the inner wall of the pipe through a bearing, and the other end is connected to the output shaft of the servo motor, so that the blade can rotate under the drive of the servo motor. The guide blade group is evenly distributed on the pipe cross section in a ring shape. When the airflow direction needs to be changed, all blades will rotate synchronously to a preset angle.

[0089] The intelligent tension control device is divided into two parts: the inlet end and the outlet end. At the inlet end, the tension sensor is installed just above the guide roller before the fabric enters the Venturi pipe and is fixed to the frame through a bracket. Adjacent to the tension sensor is the inlet end servo drive roller, which is installed on the frame at both ends through bearing seats and one end is directly connected to the output shaft of the servo motor. The structural layout of the outlet end is similar to that of the inlet end, and also includes a tension sensor and a servo drive roller, but the installation position is after the fabric leaves the Venturi pipe. The tension sensors and servo drive rollers at both ends are connected to the control system through data cables to form a closed-loop control.

[0090] The fabric's movement path is as follows: first it passes through the tension sensor and servo drive roller at the inlet end, then enters the Venturi pipe, is guided by the guide vane group on the way, and finally passes through the servo drive roller and tension sensor at the outlet end. Through this structural design, the entire system realizes the reciprocating motion control of the fabric in the Venturi pipe, allowing the fabric to cycle back and forth between the high-pressure area and the low-pressure area.

[0091] In one embodiment, the Venturi pipe system adopts a variable cross-section structure; Figure 3 As shown, in this embodiment, sending the pretreated fabric into a venturi pipe system with variable wind direction for treatment may include:

[0092] A1: Airflow treatment of fabric under preset duct parameters;

[0093] First, in the airflow processing stage under the preset pipeline parameters, the fabric enters the processing system and first passes through the feeding section. The feeding section is equipped with a guide roller group to adjust the fabric's entry posture. An airflow rectification device is set between the feeding section and the contraction section. The device ensures that the airflow entering the contraction section is uniform and stable through the combination design of multi-layer metal mesh and guide plate.

[0094] A2: Using a variable cross-section structure to adjust the fabric after airflow treatment;

[0095] In the variable cross-section structure adjustment stage, the entire processing system consists of a contraction section, a throat section and an expansion section. The contraction section adopts a gradual contraction structure with a smooth inner wall, and is sealed and connected to the feed section through a flange. The transition between the contraction section and the throat section adopts an arc transition design to ensure that the airflow enters the throat smoothly. The throat section adopts a special elliptical cross-section structure, and its two ends are connected to the contraction section and the expansion section through customized special-shaped joints. The expansion section adopts a gradual opening structure and is connected to the subsequent buffer system through a flange.

[0096] A3: The adjusted fabric is subjected to a buffering treatment through a multi-stage buffering system;

[0097] The multi-stage buffer system includes three buffer chambers connected in sequence. The first buffer chamber adopts a gradient cross-section design, connected to the expansion section through a flange, and has a honeycomb microporous structure on the inner wall of the chamber. The second buffer chamber has a double-wall structure, with an inner layer of a flexible airbag and an outer layer of a metal support layer, with an adjustable gap between the two layers. The third buffer chamber adopts a spiral channel design, with its inner wall subjected to special surface treatment, and is connected to the airflow field control system through a flange.

[0098] A4: The fabric after buffering treatment is omni-directionally regulated by an airflow field regulating system.

[0099] The airflow field control system is located at the final stage of the entire processing system, and is mainly composed of a variable pitch spiral processing chamber, a vortex generator group, and an ultrasonic processing unit. The variable pitch spiral processing chamber is fixed to the frame by a bracket, and sealed bearings are provided at both ends. The vortex generator group can be evenly distributed around the processing chamber, and each generator is fixed to the chamber by a threaded connection. The ultrasonic processing unit is installed on the outer wall of the processing chamber, and the vibration energy is transmitted to the processing chamber through the waveguide rod. These components are connected to the control system through pipes and circuits to form a complete airflow field control system.

[0100] In a specific implementation, the airflow treatment of the fabric under the preset pipeline parameters may include:

[0101] B1: obtaining preset pipeline parameters, adjusting the shrinkage ratio and inner surface state of the shrinkage section according to the preset pipeline parameters, and sending the pretreated fabric into the shrinkage section to produce a first airflow-treated fabric;

[0102] In this embodiment, before the fabric enters the contraction section, the system first automatically adjusts the pipeline parameters according to the characteristic parameters of the fabric. The adjustment process of the contraction section mainly includes the setting of the contraction ratio and the processing of the inner surface state. In specific implementation, the inlet and outlet of the contraction section are connected through a gradual contraction structure, the inner wall of the contraction section is treated with a special polishing process, and is equipped with an adjustable guide component. When the pretreated fabric enters the contraction section, the fabric moves along the guiding direction of the guide component under the action of the airflow, and is affected by the gradually accelerated airflow. In this process, the fabric fibers begin to relax initially.

[0103] B2: Based on the first airflow-treated fabric, the fabric is sent into a throat section with an elliptical cross-section structure for airflow treatment to produce a second airflow-treated fabric;

[0104] When the fabric enters the throat section, the airflow has different forces in the horizontal and vertical directions due to the special elliptical cross-section structure design. At this time, the fabric is in an environment with maximum airflow velocity and minimum pressure, and the fabric will be slightly distorted under the limitation of the elliptical cross-section. The two ends of the throat section are connected to the contraction section and the expansion section with a special transition structure to ensure that the fabric will not be impacted by sudden changes in airflow when passing through. This structural design allows the fabric to fully accept the effect of airflow in the throat section while avoiding excessive deformation of the fabric.

[0105] B3: Based on the second airflow-treated fabric, the fabric is sent into an expansion section set at a preset expansion angle for airflow treatment to obtain the fabric treated by the airflow.

[0106] After the fabric leaves the throat section, it enters the expansion section, where the air velocity begins to decrease and the pressure gradually recovers. The expansion section uses an optimized expansion angle to allow the airflow to diffuse smoothly. The fabric undergoes a gradual deceleration process at this stage, and the fiber structure is further adjusted in this process. The special design of the expansion section not only avoids the occurrence of airflow separation, but also ensures that the fabric remains stable during the deceleration process, ultimately achieving uniform softening of the fabric. During this process, the fabric is always in a controlled airflow environment, ensuring the consistency of the treatment effect.

[0107] In one embodiment, the step of adjusting the fabric after airflow treatment by using a variable cross-section structure may include:

[0108] C1: Based on the fabric treated with airflow, in the contraction section, the airflow speed is increased from the first preset speed to the second preset speed, and the pressure is reduced from the first preset pressure to the second preset pressure, so as to produce a first airflow treated fabric;

[0109] In this embodiment, the adjustment process of the variable cross-section structure is mainly reflected in the synergistic effect of the three areas of the contraction section, the throat and the expansion section. During the processing of the contraction section, the control system first receives the fabric processing data and adjusts the change process of the air flow speed according to these data. When the fabric enters the contraction section, the air flow speed is in a relatively stable initial state. As the fabric advances in the contraction section, the air flow speed gradually increases due to the gradual reduction of the cross-sectional area, and the static pressure decreases accordingly. This gradual change process of speed and pressure causes the fabric to be subjected to a uniform airflow during movement, and the fiber structure begins to produce initial relaxation changes.

[0110] C2: subjecting the first airflow-treated fabric to airflow impact treatment at the throat to produce a second airflow-treated fabric;

[0111] When the fabric enters the throat, the air velocity reaches the maximum and the static pressure drops to the lowest point. At this stage, the fabric is subjected to the strongest air impact. The air impact process in the throat is the key link in the entire treatment. The fabric is not only directly affected by the high-speed airflow, but also expands the gaps between the fibers due to the influence of the lowest static pressure environment. The system precisely controls the airflow state in the throat to enable the fabric to obtain sufficient mechanical force without damaging the fiber structure due to excessive impact.

[0112] C3: Based on the second airflow-treated fabric, the airflow velocity and pressure are restored to preset values ​​in the expansion section to obtain the airflow-treated fabric.

[0113] After the fabric enters the expansion section from the throat, it enters a smooth recovery process. In the expansion section, as the cross-sectional area increases, the air flow velocity gradually decreases, and the static pressure gradually returns to normal pressure. In this process, the fabric fibers undergo a gentle compression process, which helps to stabilize the structural changes produced in the early stage. This gradual design of the expansion section ensures that the fabric can complete the final adjustment under mild conditions, so that the entire treatment process can achieve the expected softening effect while avoiding unnecessary damage to the fabric.

[0114] In one embodiment, the buffering treatment of the adjusted fabric by a multi-stage buffering system may include:

[0115] D1: Acquire fabric movement speed parameters, and adjust the air flow speed to a first preset buffer value through the first buffer cavity according to the movement speed parameters to generate a first buffer airflow;

[0116] In this embodiment, the multi-stage buffer system uses three buffer cavity structures connected in series for fabric processing. The first buffer cavity adopts a gradient cross-section design. When the fabric enters the first buffer cavity, the system first collects the movement speed information of the fabric. The inner wall of the first buffer cavity adopts a honeycomb microporous structure, which can form an air cushion effect when the fabric moves at high speed. When the fabric passes through these microporous structures, the air flow speed will gradually decrease. At the same time, due to the existence of the air cushion effect, the direct contact between the fabric and the cavity wall is significantly reduced, effectively preventing mechanical damage to the fabric.

[0117] D2: Based on the first buffer airflow, the airflow pulsation pressure is adjusted to a second preset buffer value through the second buffer cavity to generate a second buffer airflow;

[0118] After the fabric enters the second buffer cavity, the main purpose is to adjust the pulsating pressure of the airflow. The second buffer cavity has a unique double-wall structure design, with a flexible airbag on the inner layer and a rigid support structure on the outer layer. When the fabric moves in the cavity, the flexible airbag on the inner layer can dynamically deform according to the movement state of the fabric, thereby adjusting the pulsating pressure of the airflow. This design ensures that the fabric is subjected to uniform airflow force when passing through, avoiding damage to the fabric caused by excessive local pressure.

[0119] D3: Based on the second buffer airflow, the airflow stability is adjusted to a third preset buffer value through the third buffer cavity to produce the airflow-treated fabric.

[0120] The third buffer chamber is mainly responsible for the stable transition of the fabric. The chamber adopts a spiral channel design, and the cross-sectional area of ​​the channel gradually increases along the way. When the fabric passes through the spiral channel, the stability of the airflow is further improved. The inner wall of the chamber has undergone special surface treatment and has an extremely low friction coefficient, which ensures that the fabric can maintain smooth movement during deceleration. Through the synergistic effect of this three-level buffer system, the fabric can complete the airflow processing process under mild conditions, which not only ensures sufficient processing effect but also avoids mechanical damage to the fabric.

[0121] In addition, the airflow field control system can be used to perform all-round control on the fabric after buffering treatment, and the following processing flow can be adopted:

[0122] E1: obtaining fabric processing parameters, and adjusting the motion trajectory of the fabric through a variable pitch spiral processing chamber according to the fabric processing parameters to generate a first trajectory to process the fabric;

[0123] In this embodiment, the airflow field control system adopts a triple coordinated processing solution of a variable pitch spiral processing chamber, a vortex generator and an ultrasonic processing unit. When the fabric enters the airflow field control system, the intelligent control unit first obtains the key processing parameters of the fabric, including basic information such as the thickness, density, and fiber type of the fabric. The system automatically calculates and sets the optimal processing parameters based on these parameters, including the pitch change rate of the spiral cavity, the vortex intensity, and the ultrasonic vibration frequency.

[0124] In the variable pitch spiral treatment chamber, the movement trajectory of the fabric is precisely controlled. The treatment chamber adopts a special variable pitch design, with the pitch gradually decreasing from 120mm at the inlet to 60mm at the outlet. The effective length of the entire spiral channel is 2 meters. The inner wall of the chamber is plasma treated, and the surface roughness is controlled below Ra0.4. This design ensures the smoothness of the fabric movement while maintaining appropriate friction. When the fabric moves in the variable pitch spiral channel, the gradual change of the pitch will produce a gradually strengthened radial compression effect, and the fabric will also produce a slight torsional deformation. This composite movement effectively promotes the relaxation of the fabric structure.

[0125] E2: Based on the first trajectory-treated fabric, a three-dimensional airflow field of a preset intensity is generated by a vortex generator, so that the fabric obtains an omnidirectional airflow effect, thereby generating a second trajectory-treated fabric;

[0126] The design of the vortex generator system adopts an innovative multi-point layout scheme. Eight groups of vortex generators are evenly arranged around the spiral processing chamber. Each group of generators contains three vortex units with different diameters, with diameters of 15mm, 25mm and 35mm respectively. This hierarchical design can produce vortex structures of different scales to form a complex three-dimensional airflow field. The layout angle of the vortex generator has been optimized for the flow field. The inclination angle of the main vortex generator is set to 45 degrees, and the inclination angle of the auxiliary vortex generator can be adjusted within the range of 30-60 degrees. When the fabric passes through this area, it will be affected by both large-scale and small-scale vortices, producing a multi-level mechanical vibration effect, which further enhances the softening effect of the fabric.

[0127] E3: Processing the fabric based on the second trajectory, performing vibration treatment of a preset frequency on the fabric through an ultrasonic processing unit to produce the fabric treated by the airflow.

[0128] The ultrasonic treatment unit is equipped with a high-frequency vibration system with an operating frequency range of 20-40kHz and an amplitude that can be adjusted within the range of 0-100μm. The ultrasonic transducer adopts a clamping design and transmits vibration energy to the fabric surface through a special sound wave guide rod. When the fabric passes through the ultrasonic treatment area, the high-frequency vibration energy causes the fibers to move at a microscopic scale. This rapid reciprocating motion can effectively break the adhesion between the fibers and improve the fluffiness of the fabric. The system automatically adjusts the output power of the ultrasonic wave by monitoring the moisture content and temperature of the fabric in real time to ensure the safety of the treatment process and the stability of the effect.

[0129] It is worth noting that the coordinated work of these three processing units is uniformly dispatched by the central control system. The control system uses a fuzzy PID algorithm to dynamically adjust the process parameters of each processing unit according to the characteristics of the fabric variety and real-time monitoring data. For example, when the fabric tension is detected to be too large, the system will automatically reduce the pitch change rate of the spiral cavity; when the fabric temperature rises too quickly, the output power of the ultrasonic wave will be reduced accordingly. This intelligent collaborative control strategy ensures that the fabric is always in the best softening condition during the entire processing process.

[0130] S103: passing the airflow-treated fabric through an impact grid system provided with multiple layers of angle-adjustable grids to cause the fabric to undergo controlled impact deformation, thereby obtaining a softened fabric.

[0131] Here, when the fabric comes out of the Venturi tube, the fabric hits the grid several times. The yarn bends, increasing its free space. The structural tension of the yarn itself is reduced, and fluff is produced on the surface of the fabric, forming a soft feel. In addition, the fiber is stretched and squeezed during the bending process, and the fiber, yarn, and fabric structure are deformed by "tensile fatigue" that cannot be self-recovered, eliminating its plastic compaction and making the fabric soft and fluffy.

[0132] In the specific implementation, Figure 4 As shown, S103 may specifically include:

[0133] S3.1: Obtain the fabric after the airflow treatment, and make the fabric pass through a first layer of grids at a first preset angle to generate a first deformed fabric.

[0134] The impact grille system of this embodiment adopts an innovative three-layer adjustable angle grille structure, and each layer of the grille can be independently adjusted in angle according to the characteristics of the fabric. The first layer of the grille is made of titanium alloy material and consists of multiple parallel grille bars. The cross-section of the grille bar is streamlined, with a width of 2mm and a spacing that can be adjusted within the range of 5-15mm. The surface of the grille bar has undergone a special plasma treatment, and the surface roughness is controlled below Ra0.2. This design ensures that the fabric will not be damaged when passing through, and can provide sufficient mechanical force. The angle of the first layer of the grille can be adjusted within the range of 15-45 degrees. The precise control of the angle is achieved through a precision servo motor drive system, and the positioning accuracy reaches ±0.1 degrees.

[0135] When the fabric passes through the first layer of grid, it will be subjected to a soft impact at a preset angle. This impact is mainly concentrated in the warp direction of the fabric. By controlling the angle and spacing of the grid, the directional relaxation of the warp structure of the fabric can be achieved. The system monitors the contact state between the fabric and the grid in real time through a high-speed camera device, and automatically fine-tunes the grid parameters according to the monitoring results to ensure the uniformity of the impact intensity. The fabric treated with the first layer of grid will produce preliminary structural relaxation, creating favorable conditions for subsequent processing.

[0136] S3.2: Based on the first deformable fabric, the fabric is passed through a second layer of grids at a second preset angle to generate a second deformable fabric.

[0137] The design of the second layer of grille adopts a special combined structure. The grille bars are made of carbon fiber composite materials, which have high strength and low inertia. The arrangement direction of the grille bars is 30-60 degrees with the first layer. This staggered arrangement can make the fabric deform in the composite direction when passing through.

[0138] The second layer of grille has an angle range of 30-60 degrees, and the grille bar spacing can be adjusted within the range of 8-20mm. This layer of grille is equipped with an independent temperature control system, which can adjust the working temperature according to the thermal sensitivity of the fabric. The temperature control range is from room temperature to 80℃, and the control accuracy is ±1℃.

[0139] S3.3: Based on the second deformed fabric, the fabric is passed through a third grid layer with a third preset angle to obtain the deformed fabric.

[0140] The third layer of grille is the key link of the entire impact system, and adopts an innovative flexible grille design. The grille bars are made of special elastic alloys and have controllable elastic deformation capabilities. The arrangement direction of the grille bars can be adjusted arbitrarily within 360 degrees, and the spacing can be changed within the range of 10-25mm. The angle setting range of the third layer of grille is 45-75 degrees, and precise adjustment is achieved through a digital servo system. This layer of grille is also equipped with a micro-vibration device that can generate a micro-vibration with a frequency of 10-50Hz when the fabric passes through, further enhancing the softness of the fabric.

[0141] The coordinated work of the three-layer grille is uniformly dispatched by the intelligent control system. The control system uses a deep learning algorithm to automatically calculate and set the optimal combination of grille parameters by analyzing the basic parameters of the fabric and real-time monitoring data. For example, when processing light and thin fabrics, the system will automatically reduce the grille angle, increase the spacing, and reduce the impact intensity; when processing heavy fabrics, it will increase the grille angle accordingly, reduce the spacing, and increase the processing intensity. At the same time, the system also has a real-time adjustment function, which can dynamically optimize the processing parameters according to the deformation state of the fabric to ensure the uniformity and stability of the processing effect.

[0142] It is worth noting that the entire impact grille system is also equipped with an anti-wrinkle protection device. Special guide rollers are set at the entrance and exit of each grille. The roller surface adopts a special segmented structure design, which can automatically adjust the tension of different areas and effectively prevent the fabric from wrinkling when passing through the grille. This innovative design ensures that the fabric can achieve a full softening effect while still maintaining a good appearance quality.

[0143] In the above steps, the number of cycles of the fabric in the Venturi pipe system can be dynamically adjusted, and the number of cycles can be adjusted specifically according to the fluffiness and softness of the fabric. Figure 5 As shown, the processing process of the embodiment of the present disclosure may also include:

[0144] F1. Using an intelligent temperature control system to monitor and adjust the processing temperature of the fabric after the controlled impact deformation treatment in real time, so that the fabric is maintained at an optimal plasticizing temperature to obtain a temperature-controlled fabric;

[0145] The intelligent temperature control system is used to monitor and adjust the processing temperature of the fabric after the controlled impact deformation process in real time, which can be implemented by the following steps:

[0146] Acquire fabric temperature parameters, and adjust the fabric temperature to a first preset temperature value through a far-infrared heating device according to the fabric temperature parameters to produce a first temperature-treated fabric; based on the first temperature-treated fabric, adjust the temperature control accuracy to a second preset temperature value through a double-layer jacket insulation zone to produce a second temperature-treated fabric; based on the second temperature-treated fabric, reduce the temperature to a third preset temperature value through a water mist cooling and cold air setting device to produce the temperature-controlled treated fabric.

[0147] Regarding the implementation details of the intelligent temperature control system, the present disclosure adopts precise temperature zoning control technology. First of all, in terms of the far-infrared heating device, the system is equipped with a high-performance far-infrared radiation element array, which consists of 24 independently controlled heating units, each with a power of 800W and a wavelength range of 3-10μm. This wavelength range matches the absorption peak of most textile fibers and can achieve efficient energy transfer. The heating device adopts feedback power regulation technology, and uses an infrared thermal imager to collect the temperature distribution map of the fabric surface in real time. The resolution reaches 320×240 pixels and the temperature accuracy is ±0.5℃. The control system divides the temperature image into 64 independent areas, calculates the average temperature, temperature gradient and temperature change rate of each area, and then adjusts the power output of each heating unit according to these parameters.

[0148] For example, for cotton fabrics, the system sets the first preset temperature value to 65±2℃, and the heating rate is controlled at 1.5-2.0℃ / second; for polyester fabrics, the first preset temperature value is set to 80±2℃, and the heating rate is controlled at 1.0-1.5℃ / second. During the heating process, the system dynamically adjusts the heating power according to the thickness and density of the fabric. For heavy fabrics, a "fast first, then slow" heating strategy is adopted. The initial heating power is set at 70% of the rated power. When the surface temperature of the fabric reaches 80% of the target temperature, the power is gradually reduced to 30% of the rated power to ensure that the temperature inside the fabric rises evenly without overheating.

[0149] The double-layer jacket insulation zone adopts advanced temperature field balance technology. The inner jacket is made of high thermal conductivity alloy with a thermal conductivity of 180W / (m·K) and a thickness of 2mm. The surface is precisely ground and the roughness is controlled below Ra0.8. The outer jacket adopts a multi-layer insulation material structure, which is composed of an aluminum foil reflective layer, a glass fiber middle layer and a phenolic foam outer layer from the inside to the outside. The total thickness is 25mm and the thermal resistance value reaches 1.2m 2 ·K / W. The two jackets are filled with heat-conducting silicone oil as the heat transfer medium. The dynamic viscosity of the silicone oil is 50cSt (25℃), the temperature range is -50~200℃, and the heat capacity is 1.8kJ / (kg·K).

[0150] The temperature control of the jacket insulation zone adopts the "region-overall" dual control strategy. The system divides the insulation zone into three temperature control zones: front, middle and back along the fabric running direction. Each zone is equipped with 8 precision temperature sensors (Pt100 platinum resistance) and independent heating screens. The measurement accuracy of the temperature sensor is ±0.1℃, and the response time is less than 3 seconds. The control system independently adjusts the temperature of each zone through the PID algorithm, and dynamically optimizes the temperature setting value with the overall temperature uniformity as a constraint. In actual application, the system can stabilize the temperature control accuracy within the range of ±0.3℃ of the second preset temperature value, and the temperature uniformity is controlled within ±0.5℃.

[0151] Taking cotton / acrylic blended fabric as an example, when the fabric temperature reaches 70℃ after far-infrared heating, the double-layer jacket insulation zone will set the second preset temperature value to 72±0.3℃ and maintain this temperature for 10-15 seconds to ensure that the temperature distribution of the fabric is uniform and there is no obvious temperature gradient between the inside and the surface. This precise temperature control process is crucial to ensure that the fabric structure is stabilized in the optimal plasticized state.

[0152] The water mist cooling and cold air shaping device adopts innovative gradient cooling technology and is divided into three cooling stages. The first stage uses fine water mist cooling. The water mist nozzle adopts the principle of ultrasonic frosting to produce water mist particles with an average diameter of 15μm. The water mist nozzle is evenly distributed along the width of the fabric, with a spacing of 100mm and a working pressure of 0.3MPa. It can spray 35-120ml / min of deionized water. The system is equipped with a high-precision humidity sensor to monitor the humidity state of the fabric surface in real time and adjust the water mist amount accordingly to ensure that a uniform water film is formed on the fabric surface without over-wetting.

[0153] The second stage uses temperature-controlled cold air cooling, and the cold air system consists of a variable frequency centrifugal fan and a multi-stage air temperature control device. The maximum air volume of the centrifugal fan is 3000m 3 / h, the outlet air temperature can be adjusted within the range of 15-40℃, and the temperature fluctuation is controlled within ±1℃. The cold air is evenly blown to the fabric surface through a special air distribution device. The air distribution device adopts a porous plate design with a hole diameter of 3mm and a hole spacing of 25mm to ensure that the cold air intensity evenly covers the entire fabric width.

[0154] The third stage is shaping cooling, which uses a constant temperature cold air system, with the air temperature controlled at 20±0.5℃ and the relative humidity controlled at 40±5%. The cold air in this stage blows toward the fabric at a 45° angle through a louver-shaped guide device, forming a staggered air flow field, which effectively prevents uneven shrinkage of the fabric during the cooling process. The entire cooling process is monitored in real time by an online infrared temperature measurement system, and the cooling parameters of each stage are automatically adjusted according to the temperature drop curve of the fabric.

[0155] In practical applications, for example, when processing wool / acrylic blended fabrics, the system will set the third preset temperature value to 28±1°C. The cooling rate control of the cooling process is crucial. The cooling rate is controlled at 3-4°C / second in the initial stage (70-50°C), reduced to 2-3°C / second in the middle stage (50-35°C), and further reduced to 1-2°C / second in the final stage (35-28°C). This gradient cooling strategy can ensure that the fabric structure shrinks evenly during the cooling process, effectively locks the fluffy structure formed by the previous treatment, and improves the durability of the soft effect.

[0156] F2. Use an online detection system to monitor the fluffiness and softness of the fabric after the temperature control treatment in real time, and dynamically adjust the number of cycles of the fabric in the Venturi pipe system according to the monitoring results to obtain the fabric after softening treatment.

[0157] In addition, in the embodiment of the present disclosure, when an online detection system is used to monitor the fluffiness and softness of the fabric after the temperature control treatment in real time, the following processing steps can be specifically used:

[0158] A high-speed industrial camera is used to obtain a surface morphology image of the fabric after the temperature control treatment, and the distribution density of the fluff on the fabric surface is analyzed to generate morphology analysis data; based on the morphology analysis data, a three-dimensional contour scanner is used to measure the three-dimensional undulation of the fabric to generate fabric contour data; based on the fabric contour data, a fabric physical property detector is used to measure the thickness, gram weight and curvature parameters of the fabric to generate fabric property data; and the number of cycles of the fabric in the Venturi pipe system is dynamically adjusted according to the fabric property data.

[0159] In the above processing steps, the online detection system can include multiple precise links in the monitoring process of fabric fluffiness and softness. First, the image acquisition process of the high-speed industrial camera adopts dual-light source lighting technology, that is, diffuse light source and directional light source are used simultaneously to enhance the visual contrast of the fluff on the fabric surface. The camera uses a 4K resolution sensor with a frame rate of up to 120fps and is equipped with a macro lens group to achieve high-precision imaging of the microstructure of the fabric surface. After image acquisition, the distribution of fluff is quantitatively analyzed by a specially developed image analysis algorithm. The algorithm uses a combination of multi-scale edge detection and density statistics to divide the image into multiple analysis areas and calculate the number, length distribution and directional consistency of fluff in each area. Typically, the system can detect a fluff structure as small as 0.01mm with a statistical accuracy of ±2%.

[0160] In the three-dimensional contour scanning process, the system uses blue light structured light technology to project a specific coded stripe pattern onto the fabric surface, and then a high-resolution camera collects images from different angles to reconstruct the three-dimensional surface morphology of the fabric through the principle of triangulation. The depth resolution of the scanning system reaches 0.005mm, the lateral resolution is 0.02mm, and the scanning width covers the entire width of the fabric. To improve the scanning efficiency, the system adopts a multi-head parallel scanning design to collect data from multiple areas of the fabric at the same time. In terms of data processing, wavelet transform technology is used to perform multi-scale analysis of the undulating features of the fabric surface, and extract key parameters that characterize the fluffiness of the fabric, such as surface roughness, peak-to-trough ratio, and spatial frequency distribution. For example, for cotton fabrics, the system can quantify the degree of surface undulation as a fluffiness index of 0-100, where 75 or above usually indicates a good fluffiness feel.

[0161] The fabric physical property detector adopts a multi-sensor integrated design, including a laser displacement sensor array, a precision electronic balance and a flexible test unit. The thickness measurement adopts non-contact laser ranging technology, with 16 measurement points evenly distributed in the width direction of the fabric, and the measurement accuracy reaches ±0.01mm. In order to eliminate the influence of natural fluctuations of the fabric, the system adopts a statistical averaging method, sampling each measurement point 50 times continuously, and taking the average value as the final thickness data. The gram weight analysis adopts a combination of high-precision tension sensors and photoelectric encoders to measure the weight and area of ​​a specific length of fabric to calculate the gram weight per unit area, with a measurement accuracy of ±0.5g / m 2 The bending measurement is based on the cantilever beam principle. The system uses high-precision image processing technology to record the deformation curve of the fabric under its own weight, and calculates the bending stiffness of the fabric through a mathematical model. This parameter is a key indicator for evaluating the softness of the fabric. The system can measure the bending characteristics of the fabric in both the horizontal and vertical directions, and comprehensively evaluate the hand feel characteristics of the fabric.

[0162] The system inputs the above multi-dimensional detection data into the adaptive control model, which establishes a nonlinear mapping relationship between fabric characteristic parameters and the number of processing cycles based on fuzzy logic control theory. In specific implementation, the controller first compares the detection data with the preset target parameters to calculate the deviation between the current fabric characteristics and the target characteristics. Then, according to the size and change trend of the deviation, the number of cycles of the fabric in the Venturi pipe system is dynamically adjusted. For example, when it is detected that the fluffiness index of the fabric is lower than 85% of the target value, the system will automatically increase the number of processing cycles; and when the bending stiffness is close to 95% of the target value, even if the fluffiness has not yet fully reached the standard, the system will consider reducing the number of cycles to prevent excessive processing from causing a decrease in fabric strength. This adaptive control strategy can not only ensure that the treatment effect meets the expected requirements, but also maximize production efficiency while ensuring quality.

[0163] In this embodiment, after the fabric is processed by the impact grid system, in order to further enhance and stabilize the softening effect, a dual protection mechanism of intelligent temperature control system and online detection system is adopted. The intelligent temperature control system adopts an innovative three-stage temperature control scheme, including a far-infrared heating device, a double-layer jacket insulation zone, and a water mist cooling and cold air shaping device. The synergy of these three functional zones realizes the precise control of fabric temperature.

[0164] The far-infrared heating device adopts a matrix layout design, and the heating tubes are evenly distributed along the width of the fabric. Each heating unit is equipped with an independent power adjustment module, which can perform differential heating according to the actual temperature of different areas of the fabric. At the same time, a multi-point infrared temperature measurement system is also set up in the heating area to achieve dynamic adjustment of the heating power through real-time temperature feedback, ensuring that each area of ​​the fabric can reach the optimal plasticizing temperature.

[0165] The double-layer jacket insulation zone adopts a unique temperature field balancing technology. The inner jacket is made of a special alloy with excellent thermal conductivity, and the outer layer is covered with insulation material, and the space between the two layers is filled with heat-conducting medium. This design can not only maintain a stable processing temperature, but also achieve rapid temperature regulation by adjusting the flow of the heat-conducting medium. The system uses optical fiber temperature measurement technology to monitor the temperature field distribution in the insulation zone in real time to ensure that the fabric is in the optimal plasticizing temperature range throughout the insulation process.

[0166] The water mist cooling and cold air setting device adopts composite cooling technology. The device achieves a slow drop in fabric temperature through the cooperation of precisely controlled fine water mist and temperature-adjustable cold air system. The system automatically adjusts the spray volume of water mist and the temperature of cold air according to the moisture content of the fabric, which not only ensures the uniformity of the cooling process, but also avoids quality problems caused by sudden temperature changes of the fabric.

[0167] The online inspection system uses a multi-dimensional inspection solution, including high-speed industrial cameras, 3D profile scanners, and fabric physical property detectors. The high-speed industrial camera uses double-sided imaging technology to enhance the acquisition of fabric surface details through a special light source system. The image processing system uses a deep learning algorithm to analyze the distribution characteristics of the fluff on the fabric surface to achieve quantitative evaluation of the fluffiness.

[0168] The 3D profile scanner uses innovative multi-line laser scanning technology to obtain the undulation data of the fabric surface through a high-precision displacement sensor. The system uses a specially developed data processing algorithm to convert the scanned point cloud data into the 3D profile information of the fabric, thereby evaluating the fluffiness of the fabric.

[0169] The fabric physical property detector integrates multiple test functions, including thickness detection, weight analysis and curvature measurement. The detector uses non-contact measurement technology to avoid the impact of the measurement process on the fabric. The system compares the collected physical property data with the preset standards to comprehensively evaluate the softness of the fabric.

[0170] The control system uses an intelligent algorithm to calculate the optimal number of processing cycles based on fabric detection data. The algorithm takes into account multiple factors such as the basic characteristics of the fabric, the current processing effect and the target quality requirements, and dynamically adjusts the number of fabric cycles in the Venturi pipe system. The system also establishes a quality prediction model that can estimate the final softening effect in real time during the processing process and optimize the processing parameters accordingly.

[0171] like Figure 6 As shown, the embodiment of the present disclosure also provides a fabric softening treatment device for the above method, comprising:

[0172] A preheating module 61 is used to preheat the fabric to obtain the pretreated fabric;

[0173] The Venturi pipe system processing module 62 is used to generate a high-speed airflow using a high-speed fan system, and send the pre-treated fabric into a Venturi pipe system with a variable wind direction for processing, so as to obtain the fabric treated by the airflow;

[0174] The impact grid processing module 63 is used to pass the airflow-treated fabric through an impact grid system provided with multiple layers of angle-adjustable grids, so as to cause the fabric to produce controlled impact deformation and obtain softened fabric.

[0175] In one embodiment, the Venturi pipe system includes a wind direction switching device 621 and an intelligent tension control device 622, wherein:

[0176] The wind direction switching device 621 includes a guide blade group driven by a servo motor, which is used to achieve periodic changes in the direction of the airflow. The intelligent tension control device 622 includes a tension sensor and a servo drive roller arranged at the inlet and outlet ends, which are used to control the fabric to perform reciprocating motion of a preset frequency in the Venturi tube, and through the reciprocating motion, the fabric repeatedly undergoes the conversion from the high-pressure area to the low-pressure area, thereby producing a periodic compression-expansion effect.

[0177] In one embodiment, the preheating module 61 can be used to:

[0178] Acquiring fiber type information of the fabric, adjusting the preheating temperature according to the glass transition temperature of the fiber type, and producing preheated fabric;

[0179] Based on the preheated fabric, the fabric is adjusted to a preset tension value by a tension control device to obtain the pretreated fabric.

[0180] In one embodiment, the venturi pipe system adopts a variable cross-section structure; the venturi pipe system processing module 62 can be used to:

[0181] Airflow is applied to the fabric under preset duct parameters;

[0182] The fabric after airflow treatment is adjusted by using a variable cross-section structure;

[0183] The adjusted fabric is subjected to a buffering treatment by a multi-stage buffering system;

[0184] The fabric after buffering treatment is omni-directionally regulated by the airflow field regulating system.

[0185] In one embodiment, the Venturi pipe system processing module 62 performs airflow processing on the fabric under preset pipe parameters, including:

[0186] Acquiring preset pipeline parameters, adjusting the shrinkage ratio and inner surface state of the shrinkage section according to the preset pipeline parameters, and sending the pretreated fabric into the shrinkage section to produce a first airflow-treated fabric;

[0187] Based on the first airflow-treated fabric, sending it into a throat section with an elliptical cross-section structure for airflow treatment to produce a second airflow-treated fabric;

[0188] Based on the second airflow-treated fabric, the fabric is sent into an expansion section set at a preset expansion angle for airflow treatment to obtain the fabric treated by the airflow.

[0189] In one embodiment, the Venturi pipe system processing module 62 uses a variable cross-section structure to adjust the fabric after airflow processing, including:

[0190] Based on the fabric treated by airflow, in the contraction section, the airflow speed is increased from a first preset speed to a second preset speed, and the pressure is reduced from the first preset pressure to the second preset pressure, so as to produce a first airflow treated fabric;

[0191] performing airflow impact treatment on the throat of the first airflow treated fabric to produce a second airflow treated fabric;

[0192] Based on the second airflow-treated fabric, the airflow velocity and pressure are restored to preset values ​​in the expansion section to obtain the airflow-treated fabric.

[0193] In one embodiment, the venturi pipe system processing module 62 performs buffering treatment on the conditioned fabric through a multi-stage buffering system, including:

[0194] Acquiring a fabric movement speed parameter, and adjusting the air flow speed to a first preset buffer value through the first buffer cavity according to the movement speed parameter, thereby generating a first buffer air flow;

[0195] Based on the first buffer airflow, the airflow pulsation pressure is adjusted to a second preset buffer value through the second buffer cavity to generate a second buffer airflow;

[0196] Based on the second buffer airflow, the airflow stability is adjusted to a third preset buffer value through the third buffer cavity to produce the airflow-treated fabric.

[0197] In one embodiment, the Venturi pipe system processing module 62 performs all-round regulation on the fabric after buffering through an airflow field regulation system, including:

[0198] Acquiring fabric processing parameters, and adjusting the motion trajectory of the fabric through a variable pitch spiral processing chamber according to the fabric processing parameters to generate a first trajectory to process the fabric;

[0199] Based on the fabric processed by the first trajectory, a three-dimensional airflow field of a preset intensity is generated by a vortex generator, so that the fabric obtains an omnidirectional airflow effect, thereby producing a fabric processed by a second trajectory;

[0200] The fabric is processed based on the second trajectory, and the fabric is vibrated at a preset frequency by an ultrasonic processing unit to produce the fabric processed by the airflow.

[0201] In one embodiment, the impact grid processing module 63 can be used to:

[0202] Obtaining the fabric treated by the airflow, and passing the fabric through a first layer of grids at a first preset angle to generate a first deformed fabric;

[0203] Based on the first deformable fabric, the fabric is passed through a second layer of grid at a second preset angle to produce a second deformable fabric;

[0204] Based on the second deformed fabric, the fabric is passed through a third grid layer at a third preset angle to obtain the deformed fabric.

[0205] In one embodiment, the device may further include:

[0206] The cycle number adjustment module 64 is used to use an intelligent temperature control system to monitor and adjust the processing temperature of the fabric after the controlled impact deformation treatment in real time, so that the fabric is maintained at the optimal plasticizing temperature to obtain the fabric after the temperature control treatment; use an online detection system to monitor the fluffiness and softness of the fabric after the temperature control treatment in real time, and dynamically adjust the number of cycles of the fabric in the Venturi pipe system according to the monitoring results to obtain the fabric after the softening treatment.

[0207] In one embodiment, the cycle number adjustment module 64 uses an online detection system to monitor the fluffiness and softness of the fabric after the temperature control treatment in real time, including:

[0208] A high-speed industrial camera is used to obtain a surface morphology image of the fabric after the temperature control treatment, and the distribution density of the fluff on the surface of the fabric is analyzed to generate morphology analysis data;

[0209] Based on the morphological analysis data, using a three-dimensional profile scanner to measure the three-dimensional undulation of the fabric to generate fabric profile data;

[0210] Based on the fabric contour data, the thickness, weight and curvature parameters of the fabric are measured by a fabric physical property detector to generate fabric property data;

[0211] The number of cycles of the fabric in the Venturi piping system is dynamically adjusted according to the fabric characteristic data.

[0212] In one embodiment, the cycle number adjustment module 64 uses an intelligent temperature control system to monitor and adjust the processing temperature of the fabric after the controlled impact deformation process in real time, including:

[0213] Acquiring fabric temperature parameters, and adjusting the fabric temperature to a first preset temperature value through a far-infrared heating device according to the fabric temperature parameters, to produce a first temperature treated fabric;

[0214] Based on the first temperature treated fabric, adjusting the temperature control accuracy to a second preset temperature value through the double jacket insulation zone to produce a second temperature treated fabric;

[0215] Based on the second temperature-treated fabric, the temperature is lowered to a third preset temperature value through a water mist cooling and a cold air setting device to produce the temperature-controlled treated fabric.

[0216] It is worth noting that the entire temperature control and detection system adopts a modular design concept. Each functional unit can work independently and can also achieve data sharing and collaborative control through the industrial bus. The system also has a self-learning function, which can continuously optimize the control strategy based on historical processing data to improve production efficiency and product quality stability.

[0217] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present disclosure, which are used to illustrate the technical solutions of the present disclosure, rather than to limit them. The protection scope of the present disclosure is not limited thereto. Although the present disclosure is described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present disclosure, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure, and should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims

1. A fabric softening method, characterized in that: include: performing preheat treatment on the fabric to obtain pretreated fabric; A high-speed fan system is used to generate a high-speed airflow, and the pretreated fabric is sent into a venturi pipe system with a variable wind direction for treatment to obtain the fabric treated by the airflow; The fabric treated by the airflow is passed through an impact grid system provided with multiple layers of grids with adjustable angles, so that the fabric undergoes controlled impact deformation, thereby obtaining the fabric treated by softening.

2. The method according to claim 1, characterized in that The Venturi pipe system includes a wind direction switching device and an intelligent tension control device, wherein: The wind direction switching device includes a guide blade group driven by a servo motor, which is used to achieve periodic changes in the direction of the airflow. The intelligent tension control device includes a tension sensor and a servo drive roller arranged at the inlet end and the outlet end, which are used to control the fabric to perform reciprocating motion of a preset frequency in the Venturi tube, and through the reciprocating motion, the fabric repeatedly undergoes the conversion from the high-pressure area to the low-pressure area, thereby producing a periodic compression-expansion effect.

3. The method according to claim 1, characterized in that The method of preheating the fabric to obtain the pretreated fabric comprises: Acquiring fiber type information of the fabric, adjusting the preheating temperature according to the glass transition temperature of the fiber type, and producing preheated fabric; Based on the preheated fabric, the fabric is adjusted to a preset tension value by a tension control device to obtain the pretreated fabric.

4. The method according to claim 1, characterized in that: The Venturi pipe system adopts a variable cross-section structure; The method of sending the pretreated fabric into a venturi pipe system with variable wind direction for treatment comprises: Airflow is applied to the fabric under preset duct parameters; The fabric after airflow treatment is adjusted by using a variable cross-section structure; The adjusted fabric is subjected to a buffering treatment by a multi-stage buffering system; The fabric after buffering treatment is omni-directionally regulated by the airflow field regulating system.

5. The method according to claim 4, characterized in that The airflow treatment of the fabric under the preset pipeline parameters includes: Acquiring preset pipeline parameters, adjusting the shrinkage ratio and inner surface state of the shrinkage section according to the preset pipeline parameters, and sending the pretreated fabric into the shrinkage section to produce a first airflow-treated fabric; Based on the first airflow-treated fabric, sending it into a throat section with an elliptical cross-section structure for airflow treatment to produce a second airflow-treated fabric; Based on the second airflow-treated fabric, the fabric is sent into an expansion section set at a preset expansion angle for airflow treatment to obtain the fabric treated by the airflow.

6. The method according to claim 4, characterized in that The method of using a variable cross-section structure to adjust the fabric after airflow treatment includes: Based on the fabric treated by airflow, in the contraction section, the airflow speed is increased from a first preset speed to a second preset speed, and the pressure is reduced from the first preset pressure to the second preset pressure, so as to produce a first airflow treated fabric; performing airflow impact treatment on the throat of the first airflow treated fabric to produce a second airflow treated fabric; Based on the second airflow-treated fabric, the airflow velocity and pressure are restored to preset values ​​in the expansion section to obtain the airflow-treated fabric.

7. The method according to claim 4, characterized in that The step of performing buffering treatment on the adjusted fabric by a multi-stage buffering system comprises: Acquiring a fabric movement speed parameter, and adjusting the air flow speed to a first preset buffer value through the first buffer cavity according to the movement speed parameter, thereby generating a first buffer air flow; Based on the first buffer airflow, the airflow pulsation pressure is adjusted to a second preset buffer value through the second buffer cavity to generate a second buffer airflow; Based on the second buffer airflow, the airflow stability is adjusted to a third preset buffer value through the third buffer cavity to produce the airflow-treated fabric.

8. The method according to claim 4, characterized in that The airflow field control system is used to perform all-round control on the fabric after the buffering treatment, including: Acquiring fabric processing parameters, and adjusting the motion trajectory of the fabric through a variable pitch spiral processing chamber according to the fabric processing parameters to generate a first trajectory to process the fabric; Based on the fabric processed by the first trajectory, a three-dimensional airflow field of a preset intensity is generated by a vortex generator, so that the fabric obtains an omnidirectional airflow effect, thereby producing a fabric processed by a second trajectory; The fabric is processed based on the second trajectory, and the fabric is vibrated at a preset frequency by an ultrasonic processing unit to produce the fabric processed by the airflow.

9. The method according to claim 1, characterized in that: The method of passing the airflow-treated fabric through an impact grille system provided with multiple layers of adjustable angle grilles comprises: Obtaining the fabric treated by the airflow, and passing the fabric through a first layer of grids at a first preset angle to generate a first deformed fabric; Based on the first deformable fabric, the fabric is passed through a second layer of grid at a second preset angle to produce a second deformable fabric; Based on the second deformed fabric, the fabric is passed through a third grid layer at a third preset angle to obtain the deformed fabric.

10. The method according to claim 1, characterized in that The method further comprises: An intelligent temperature control system is used to monitor and adjust the processing temperature of the fabric after the controlled impact deformation treatment in real time, so that the fabric is kept at an optimal plasticizing temperature to obtain the fabric after the temperature control treatment; An online detection system is used to monitor the fluffiness and softness of the fabric after the temperature control treatment in real time, and the number of cycles of the fabric in the Venturi pipe system is dynamically adjusted according to the monitoring results to obtain the fabric after the softening treatment.

11. The method according to claim 10, characterized in that The online detection system is used to monitor the fluffiness and softness of the fabric after the temperature control treatment in real time, including: A high-speed industrial camera is used to obtain a surface morphology image of the fabric after the temperature control treatment, and the distribution density of the fluff on the surface of the fabric is analyzed to generate morphology analysis data; Based on the morphological analysis data, using a three-dimensional profile scanner to measure the three-dimensional undulation of the fabric to generate fabric profile data; Based on the fabric contour data, the thickness, weight and curvature parameters of the fabric are measured by a fabric physical property detector to generate fabric property data; The number of cycles of the fabric in the Venturi piping system is dynamically adjusted according to the fabric characteristic data.

12. The method according to claim 10, characterized in that The intelligent temperature control system is used to monitor and adjust the processing temperature of the fabric after the controlled impact deformation process in real time, including: Acquiring fabric temperature parameters, and adjusting the fabric temperature to a first preset temperature value through a far-infrared heating device according to the fabric temperature parameters, to produce a first temperature treated fabric; Based on the first temperature treated fabric, adjusting the temperature control accuracy to a second preset temperature value through the double jacket insulation zone to produce a second temperature treated fabric; Based on the second temperature-treated fabric, the temperature is lowered to a third preset temperature value through a water mist cooling and a cold air setting device to produce the temperature-controlled treated fabric.

13. A fabric softening device, characterized in that: include: A preheating module is used to preheat the fabric to obtain the pretreated fabric; A venturi pipe system processing module is used to generate a high-speed airflow using a high-speed fan system, and send the pretreated fabric into a venturi pipe system with a variable wind direction for processing to obtain fabric treated by airflow; The impact grid processing module is used to pass the airflow-treated fabric through an impact grid system provided with multiple layers of angle-adjustable grids, so as to cause the fabric to produce controlled impact deformation and obtain softened fabric.

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