Flannelette air-jet loom

Abstract

The invention relates to the technical field of spinning, in particular to a flannelette air-jet loom. The flannelette air-jet loom comprises a rack, a flannelette surface guide structure is arranged on the rack, the flannelette surface guide structure comprises an angle-adjustable guide roller and a tension sensor, and the flannelette surface guide structure is used for monitoring and adjusting the flannelette tension in real time. The fabric surface guiding structure has the following effects that the fabric surface guiding structure dynamically adapts to the tension change of the flannelette through inclination angle adjustment of the guide roller and real-time feedback of the tension sensor, it is ensured that the flannelette is evenly spread after being separated from a cloth fell, wrinkles or local stretching is avoided, and the final flannelette product quality is improved.

Description

Technical Field

[0001] This application relates to the technical field of textiles, and particularly to a flannelette air-jet loom. Background Art

[0002] As one of the core devices in modern textile industry, the air-jet loom realizes the introduction and weaving of weft yarns through high-speed air flow, greatly improving the production efficiency and the quality of flannelette.

[0003] With the diversification of market demands and technological progress, air-jet looms have been widely used in the production of complex flannelettes such as flannelette.

[0004] However, due to the soft and deformable nature of flannelette material, the traditional air-jet loom is prone to uneven weft yarn tension during the weaving process. In the prior art, the method of increasing the number of fixed guide rollers is usually adopted to limit the movement range of flannelette, thereby reducing the tension fluctuation.

[0005] However, the fixed guide rollers cannot dynamically adapt to the change of flannelette tension, resulting in insufficient tension control accuracy during the weaving process, which directly affects the quality of the final flannelette product. Summary of the Invention

[0006] In order to dynamically adapt to the change of flannelette tension and improve the quality of the final flannelette product, this application provides a flannelette air-jet loom.

[0007] A flannelette air-jet loom provided by this application adopts the following technical solutions: including a frame, on which a flannelette surface guiding structure is arranged. The flannelette surface guiding structure includes an adjustable-angle guide roller and a tension sensor, and the flannelette surface guiding structure is used to monitor and adjust the flannelette tension in real time.

[0008] By adopting the above technical solutions, the flannelette surface guiding structure dynamically adapts to the change of flannelette tension through the inclination adjustment of the guide roller and the real-time feedback of the tension sensor, ensuring that the flannelette unfolds evenly after leaving the fell of cloth, avoiding wrinkles or local stretching, and improving the quality of the final flannelette product.

[0009] Preferably, a main air-jet structure and an auxiliary air flow regulating structure are further arranged on the frame. The main air-jet structure is used to introduce the weft yarn into the fell of cloth. The auxiliary air flow regulating structure is arranged on both sides of the frame. The auxiliary air flow regulating structure includes a plurality of adjustable nozzles, and the adjustable nozzles are used to output uniform air flow to the surface of the flannelette.

[0010] By adopting the above technical solutions, the weft yarn is introduced through the main air-jet structure, and the adjustable nozzles of the auxiliary air flow regulating structure are used to achieve uniform air flow coverage. At the same time, with the help of the adjustable angle of the guide roller and the real-time monitoring of the tension sensor, the change of flannelette tension is dynamically adapted, so as to realize the precise control of the tension and air flow distribution during the flannelette weaving process.

[0011] Preferably, it further includes a control unit, which is signal-connected to the auxiliary air flow regulating structure and the suede guiding structure and is used to dynamically adjust the air flow intensity output by the adjustable nozzle and the angle of the guide roller according to the data fed back by the tension sensor.

[0012] By adopting the above technical solution, the control unit dynamically adjusts the air flow intensity and the guide roller angle according to the data fed back by the tension sensor, achieving the effect of accurately controlling the tension and air flow distribution in the process of flannelette weaving.

[0013] Preferably, the main jet structure includes a gas supply pipeline and a vortex generator, the vortex generator is embedded in the gas supply pipeline and the vortex generator is close to the upstream of the jet port.

[0014] By adopting the above technical solution, when the high-pressure air flow passes through the vortex generator, a stable vortex with low energy loss is formed. The centrifugal effect of the vortex can suppress the turbulent disturbance, reduce the air flow pressure pulsation, and ensure that the vortex fully develops before the air flow reaches the jet port near the upstream of the jet port, making the air flow velocity distribution at the jet port more uniform, thereby improving the linearity and positioning accuracy of the weft yarn flight.

[0015] Preferably, the vortex generator includes a plurality of guide vanes, and the plurality of guide vanes are sequentially arranged at intervals along the axial direction of the gas supply pipeline, and the guide vanes are spiral.

[0016] By adopting the above technical solution, the guide vanes are spiral to guide the air flow to form an orderly rotating vortex, breaking the laminar flow state of the original air flow. The stable vortex can avoid the deviation or jitter of the weft yarn during flight due to air flow fluctuations, reducing the yarn breakage rate.

[0017] Preferably, the axis of the guide roller is perpendicular to the cloth output direction of the flannelette, and a guide roller adjusting member is arranged on the frame. The guide roller adjusting member is used to be connected to one end of the guide roller. The guide roller adjusting member includes an adjusting motor and an adjusting arm. One end of the adjusting arm is connected to the output shaft of the adjusting motor, and the other end of the adjusting arm is connected to one end of the guide roller. The adjusting motor drives the adjusting arm to be rotationally connected to the frame, and the adjusting arm drives the axis of the guide roller to form an adjustable inclination angle range of 5° - 15° with the running direction of the loom.

[0018] By adopting the above technical solution, the adjusting motor drives the adjusting arm to rotate, driving the axis of the guide roller to form an adjustable inclination angle range of 5° - 15° with the running direction of the loom, thereby realizing the fine adjustment of the tension of the flannelette.

[0019] Preferably, it further includes a suede flatness detection structure, which includes an infrared scanner and an image processor, and is used to analyze the surface uniformity of the flannelette in real time and feed it back to the control unit.

[0020] By adopting the above technical solution, by introducing a suede flatness detection structure and a control unit, the infrared scanner can quickly obtain the image information of the suede surface, and the image processor can identify the abnormal area, so as to realize the real-time monitoring and intelligent adjustment of the suede surface state, thereby further improving the uniformity and stability of the suede.

[0021] Preferably, the image processor identifies the abnormal area on the suede surface through a gray-scale comparison algorithm and triggers the adjustable nozzle at the corresponding position to perform local air flow compensation.

[0022] By adopting the above technical solution, the infrared scanner obtains the suede surface image, the image processor uses the gray-scale comparison algorithm to identify the abnormal area, and the control unit triggers the adjustable nozzle at the corresponding position to perform local air flow compensation, further improving the flatness of the suede surface and solving the local defect problem that is difficult to handle by traditional methods.

[0023] Preferably, the control unit is built-in with a fuzzy PID algorithm for dynamically optimizing the air flow adjustment frequency according to the tension fluctuation value.

[0024] By adopting the above technical solution, the fuzzy PID algorithm built in the control unit can dynamically optimize the air flow adjustment frequency according to the tension fluctuation value, ensuring the stable and reliable operation of the whole system. The overall solution significantly improves the automation level and production efficiency of the air-jet loom by introducing intelligent control technology.

[0025] Preferably, the auxiliary air flow adjustment structure further includes a pressure sensor, the pressure sensor is located inside the adjustable nozzle and at the nozzle orifice, and the pressure sensor is used to detect the air flow pressure in real time and send an adjustment signal to the control unit.

[0026] By adopting the above technical solution, the control unit receives the feedback data from the tension sensor and the pressure sensor, and dynamically adjusts the air flow intensity and the angle of the guide roller through the fuzzy PID algorithm. When the tension sensor detects that the suede tension is too large, the control unit will reduce the air flow intensity and adjust the angle of the guide roller to reduce the tension; when the pressure sensor detects that the air flow pressure is insufficient, the control unit will increase the air flow intensity to ensure the stability of the weaving process.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. The suede guiding structure dynamically adapts to the change of suede tension through the inclination adjustment of the guide roller and the real-time feedback of the tension sensor, ensuring that the suede is evenly unfolded after leaving the weaving shed, avoiding wrinkles or local stretching, and improving the quality of the final suede product; 2. The guide vanes are helical to guide the air flow to form an orderly rotating eddy current, breaking the laminar state of the original air flow. The stable eddy current can prevent the weft yarn from shifting or jittering due to air flow fluctuations during flight, reducing the yarn breakage rate; 3. The infrared scanner is used to obtain the surface image of the flannelette. The image processor uses the gray-scale contrast algorithm to identify the abnormal area, and the control unit triggers the adjustable nozzle at the corresponding position for local air flow compensation, further improving the flatness of the flannelette surface. Description of the Drawings

[0028] Figure 1 is the overall structural schematic diagram of the present application; Figure 2 is Figure 1 the partial enlarged schematic diagram of part A in Figure 3 is the sectional schematic diagram of the overall structure of the present application; Figure 4 is the overall structural schematic diagram of the present application from another perspective; Figure 5 is the partial structural schematic diagram of the present application; Figure 6 is Figure 3 the partial enlarged schematic diagram of part B in Figure 7 is the overall structural schematic diagram of the present application from another perspective; Figure 8 is Figure 7 the partial enlarged schematic diagram of part C in

[0029] Description of the Reference Numerals: 1, flannelette; 110, frame; 120, flannelette surface guiding structure; 121, guide roller; 122, tension sensor; 123, antistatic coating; 124, guide roller adjusting member; 125, adjusting motor; 126, adjusting arm; 130, main jet structure; 131, air supply pipeline; 132, eddy current generator; 133, guide vane; 134, heat preservation layer; 140, auxiliary air flow adjusting structure; 141, adjustable nozzle; 142, air pressure sensor; 150, flannelette surface flatness detection structure; 151, infrared scanner; 152, image processor. Detailed Embodiments

[0030] The following further describes the present application in detail with reference to the drawings.

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative labor, and these embodiments are also within the protection scope of the present invention.

[0032] The present application discloses a flannelette air-jet loom, which is used to dynamically adapt to the change of the tension of the flannelette and improve the quality of the final flannelette product.

[0033] Reference Figures 1-7 , a flannelette air-jet loom, including a frame 110, on which a flannelette guiding structure 120, a main air-jet structure 130 and an auxiliary air flow regulating structure 140 are arranged. Among them, the flannelette guiding structure 120 includes an adjustable-angle guide roller 121 and a tension sensor 122, realizing the dynamic monitoring and adjustment of the tension and surface state of the flannelette 1. The main air-jet structure 130 is used to introduce the weft yarn into the weaving mouth. The auxiliary air flow regulating structure 140 is arranged on both sides of the frame 110. The auxiliary air flow regulating structure 140 includes a plurality of adjustable nozzles 141 and a pneumatic pressure sensor 142. The adjustable nozzles 141 are used to output uniform air flow to the surface of the flannelette 1. The flannelette guiding structure 120 dynamically adapts to the change of the tension of the flannelette 1 through the inclination adjustment of the guide roller 121 and the real-time feedback of the tension sensor 122, ensuring that the flannelette 1 unfolds evenly after leaving the weaving mouth, thereby significantly improving the uniformity and stability of the flannelette 1, avoiding wrinkles or local stretching, and improving the quality of the final flannelette 1 product.

[0034] Specifically, the surface of the guide roller 121 is coated with an anti-static coating 123. The coating material can be selected from polytetrafluoroethylene or silicone rubber, both of which have good wear resistance and anti-static performance. In order to realize the adjustability of the angle of the guide roller 121, a guide roller adjusting member 124 is arranged on the frame 110. The axis of the guide roller 121 is perpendicular to the cloth output direction of the flannelette 1. The guide roller adjusting member 124 is used to be connected to one end of the guide roller 121. The guide roller adjusting member 124 includes an adjusting motor 125 and an adjusting arm 126. One end of the adjusting arm 126 is connected to the output shaft of the adjusting motor 125, and the other end of the adjusting arm 126 is connected to one end of the guide roller 121. The adjusting motor 125 drives the adjusting arm 126 to rotate and be connected to the frame 110. The adjusting arm 126 drives the axis of the guide roller 121 to form an adjustable inclination range of 5°-15° with the running direction of the loom, which can effectively guide the movement of the flannelette 1 and reduce the frictional resistance, thereby realizing the fine adjustment of the tension of the flannelette 1. The tension sensor 122 is installed on both sides of the guide roller 121 and adopts a strain gauge sensor, which has high precision and long-term stability and can monitor the change of the tension of the flannelette 1 in real time.

[0035] The main jet structure 130 includes a gas supply pipe 131 and a vortex generator 132. The gas supply pipe 131 is made of stainless steel with a smooth inner wall to reduce air flow resistance. Its cross-section is circular, and the diameter can be selected according to actual requirements. The vortex generator 132 is embedded in the gas supply pipe 131 and is close to the upstream of the jet orifice. When high-pressure air flow passes through the vortex generator 132, a stable vortex with low energy loss is formed. The centrifugal effect of the vortex can suppress turbulent disturbances, reduce air flow pressure pulsation, and ensure that the vortex fully develops before the air flow reaches the jet orifice, making the air flow velocity distribution at the jet orifice more uniform, thereby improving the straightness and positioning accuracy of the weft yarn flight. The vortex generator 132 includes a plurality of guide vanes 133. The plurality of guide vanes 133 are arranged at intervals along the axial direction of the gas supply pipe 131 in sequence. The guide vanes 133 are spiral-shaped to guide the air flow to form an orderly rotating vortex and break the laminar state of the original air flow. The blade spacing gradually increases along the axial direction. This design can effectively improve the air flow stability and reduce the occurrence of turbulent phenomena. The stable vortex can avoid the deviation or jitter of the weft yarn during flight caused by air flow fluctuations and reduce the yarn breakage rate.

[0036] In addition, a heat insulation layer 134 is added to the outer wall of the gas supply pipe 131. The heat insulation layer 134 is made of aluminosilicate fiber material, which effectively reduces heat energy loss and ensures the constancy of the air flow temperature. By optimizing the structure of the gas supply pipe 131 of the main jet structure 130 and introducing the design of the heat insulation layer 134, the temperature control accuracy is improved, thereby improving the uniformity during the weft yarn introduction process and enhancing the overall quality of the flannelette 1.

[0037] In addition, it also includes a control unit. The control unit is signal-connected to the auxiliary air flow adjustment structure 140 and the velvet surface guiding structure 120 and is used to dynamically adjust the air flow intensity output by the adjustable nozzle 141 and the angle of the guide roller 121 according to the data fed back by the tension sensor 122. The control unit is signal-connected to the auxiliary air flow adjustment module and the velvet surface guiding mechanism, and is built-in with a fuzzy PID algorithm, which is used to dynamically optimize the air flow adjustment frequency according to the tension fluctuation value. The fuzzy PID algorithm built in the control unit can dynamically optimize the air flow adjustment frequency according to the tension fluctuation value to ensure the stable and reliable operation of the entire system. Through the introduction of intelligent control technology, the overall solution significantly improves the automation level and production efficiency of the air-jet loom.

[0038] The control unit can also be communicatively connected to an external production management system, supporting the automatic switching of weaving parameters according to order requirements. For example, when producing the thin flannelette 1, the air flow intensity can be reduced and the angle of the guide roller 121 can be adjusted to a smaller value; when producing the thick flannelette 1, the air flow intensity needs to be increased and the angle of the guide roller 121 can be adjusted to a larger value.

[0039] The adjustable nozzle 141 includes a nozzle body and a regulating valve. The nozzle body is made of high-strength engineering plastics, which has the advantages of light weight and high temperature resistance. There is a flow channel inside it to guide the compressed air to flow towards the surface of the flannelette 1. The regulating valve is in the form of a solenoid valve, and the valve opening is adjusted by controlling the current magnitude, so as to achieve precise control of the air flow intensity. Moreover, the front end of the nozzle body is designed to be flat, and the diameter gradually decreases from the inlet to the outlet, which can increase the air flow speed and reduce the pressure loss, and can generate a uniformly distributed air flow to avoid the deformation of the surface of the flannelette 1 caused by too strong local air flow. The air pressure sensor 142 is installed near the nozzle. It adopts a piezoelectric sensor, which has high sensitivity and fast response characteristics, and can detect the air flow pressure in real time and send an adjustment signal to the control unit.

[0040] The weft yarn is introduced through the main jetting structure 130. The adjustable nozzle 141 of the auxiliary air flow regulation module is used to achieve uniform air flow coverage. At the same time, the adjustable guide roller 121 and the tension sensor 122 of the flannelette guiding mechanism are used to monitor and adjust the tension of the flannelette 1 in real time. The control unit dynamically adjusts the air flow intensity and the angle of the guide roller 121 according to the feedback data, so as to achieve precise control of the tension and air flow distribution during the weaving process of the flannelette 1. In addition, the control unit is communicatively connected to the external production management system and can automatically switch the weaving parameters according to the order requirements, improving the production efficiency and flexibility.

[0041] In addition, it also includes a flannelette flatness detection structure 150. The flannelette flatness detection structure 150 includes an infrared scanner 151 and an image processor 152, which are used to analyze the surface uniformity of the flannelette 1 in real time and feedback it to the control unit. The image processor 152 identifies the abnormal area on the surface of the flannelette 1 through the gray-scale contrast algorithm and triggers the adjustable nozzle 141 at the corresponding position to perform local air flow compensation.

[0042] By introducing the flannelette flatness detection structure 150 and the control unit, the infrared scanner 151 can quickly obtain the image information of the surface of the flannelette 1. The image processor 152 uses the gray-scale contrast algorithm to identify the abnormal area and triggers the adjustable nozzle 141 at the corresponding position through the control unit to perform local air flow compensation, further improving the flatness of the surface of the flannelette 1, solving the local defect problem that is difficult to handle by traditional methods, and being able to realize the real-time monitoring and intelligent adjustment of the surface state of the flannelette 1, thereby further improving the uniformity and stability of the flannelette 1.

[0043] Specifically, the infrared scanner 151 adopts a high-performance infrared sensor array, which can quickly capture the infrared image information on the surface of the flannelette 1. The pixel density of the infrared sensor array reaches 1024×768, which can provide high-resolution image data; the image processor 152 is developed based on an embedded platform and built-in with a gray-scale contrast algorithm, which can identify the abnormal areas on the surface of the flannelette 1 and trigger the nozzles at the corresponding positions to perform local air flow compensation. Specifically, the gray-scale contrast algorithm calculates the gray-scale difference between adjacent areas, identifies the abnormal areas with uneven surface or uneven fiber distribution, and sends the coordinate information of the abnormal areas to the control unit. The control unit controls the air flow intensity of the corresponding nozzles to increase or decrease according to the coordinate information, so as to eliminate the surface defects.

[0044] By introducing the flannelette flatness detection structure 150, the real-time monitoring and intelligent adjustment of the surface state of the flannelette 1 can be realized, thereby further improving the uniformity and stability of the flannelette 1. At the same time, the fuzzy PID algorithm built in the control unit can dynamically optimize the air flow adjustment frequency according to the tension fluctuation value, ensuring the stable and reliable operation of the whole system. Through the introduction of intelligent control technology, the overall solution significantly improves the automation level and production efficiency of the air-jet loom.

[0045] The implementation principle of the air-jet loom for flannelette in the embodiment of the present application is as follows: the weft yarn is introduced through the main air-jet structure 130, and the adjustable nozzles 141 of the auxiliary air flow adjustment module are used to achieve uniform air flow coverage. At the same time, the adjustable guide rollers 121 and the tension sensors 122 of the flannelette guiding mechanism are used to monitor and adjust the tension of the flannelette 1 in real time. The control unit dynamically adjusts the air flow intensity and the angle of the guide roller 121 according to the feedback data, so as to achieve precise control of the tension and air flow distribution during the weaving process of the flannelette 1; by introducing the flannelette flatness detection structure 150, the real-time monitoring and intelligent adjustment of the surface state of the flannelette 1 can be realized, thereby further improving the uniformity and stability of the flannelette 1. At the same time, the fuzzy PID algorithm built in the control unit can dynamically optimize the air flow adjustment frequency according to the tension fluctuation value, ensuring the stable and reliable operation of the whole system. Through the introduction of intelligent control technology, the overall solution significantly improves the automation level and production efficiency of the air-jet loom.

[0046] The embodiments of the specific implementation manners are all the preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A flannel air jet loom, comprising a frame (110), characterized in that: The frame (110) is provided with a velvet guide structure (120), the velvet guide structure (120) comprising an angle-adjustable guide roller (121) and a tension sensor (122), and the velvet guide structure (120) is used to monitor and adjust the tension of the velvet cloth (1) in real time.

2. A flannel air jet loom according to claim 1, characterized in that: The frame (110) is also provided with a main jet structure (130) and an auxiliary airflow adjustment structure (140); the main jet structure (130) is used to introduce weft yarn into the cloth fell; the auxiliary airflow adjustment structure (140) is provided on both sides of the frame (110); the auxiliary airflow adjustment structure (140) comprises a plurality of adjustable nozzles (141); the adjustable nozzles (141) are used to output a uniform airflow to the surface of the flannel (1).

3. A flannel air jet loom according to claim 2, characterized in that: It also includes a control unit, which is connected to the auxiliary airflow adjustment structure (140) and the velvet guide structure (120) by signal and is used to dynamically adjust the airflow intensity output by the adjustable nozzle (141) and the angle of the guide roller (121) according to data fed back by the tension sensor (122).

4. A flannel air jet loom according to claim 3, characterized in that: The main jet structure (130) comprises an air supply pipe (131) and a vortex generator (132); the vortex generator (132) is embedded in the air supply pipe (131) and is close to the upstream of the jet port.

5. A flannel air jet loom according to claim 4, characterized in that: The vortex generator (132) comprises a plurality of guide blades (133), the plurality of guide blades (133) being arranged in sequence and spaced apart along the axial direction of the air supply pipe (131), and the guide blades (133) being spiral-shaped.

6. A flannel air jet loom according to claim 5, characterized in that: The guide roller (121) is axially perpendicular to the cloth delivery direction of the flannel (1); a guide roller adjusting member (124) is provided on the frame (110); the guide roller adjusting member (124) is used to be connected to one end of the guide roller (121); the guide roller adjusting member (124) comprises an adjusting motor (125) and an adjusting arm (126); one end of the adjusting arm (126) is connected to an output shaft of the adjusting motor (125); the other end of the adjusting arm (126) is connected to one end of the guide roller (121); the adjusting motor (125) drives the adjusting arm (126) to rotate and connect to the frame (110); the adjusting arm (126) drives the axis of the guide roller (121) to form an adjustable inclination range of 5°-15° with the running direction of the loom.

7. The flannel air jet loom according to claim 3, characterized in that: It also comprises a velvet surface flatness detection structure (150), wherein the velvet surface flatness detection structure (150) comprises an infrared scanner (151) and an image processor (152), and is used for real-time analysis of the surface uniformity of the velvet cloth (1) and feeding back the result to the control unit.

8. The flannel air jet loom according to claim 7, characterized in that: The image processor (152) identifies abnormal areas on the surface of the flannel (1) through a grayscale contrast algorithm, and triggers the adjustable nozzle (141) at a corresponding position to perform local airflow compensation.

9. The flannel air jet loom according to claim 3, characterized in that: The control unit has a built-in fuzzy PID algorithm for dynamically optimizing the airflow adjustment frequency according to the tension fluctuation value.

10. The flannel air jet loom according to claim 3, characterized in that: The auxiliary airflow adjustment structure (140) further comprises an air pressure sensor (142), wherein the air pressure sensor (142) is located inside the adjustable nozzle (141) and at the nozzle opening, and the air pressure sensor (142) is used to detect the airflow pressure in real time and send an adjustment signal to the control unit.

Images