Cotton web foreign fiber removing device and removing method thereof

Abstract

The invention discloses a web foreign fiber removing device and method, and relates to the field of textile machinery equipment, and the removing device comprises a first foreign fiber removing mechanism, a second foreign fiber removing mechanism and a turnover mechanism; the first foreign fiber removing mechanism comprises a first traction conveying belt arranged at the rear end of the first carding machine, a first foreign fiber detecting assembly and a first spraying valve assembly. The second foreign fiber removing mechanism comprises a second traction conveying belt arranged at the rear end of the second carding machine, a second foreign fiber detecting assembly and a second spray valve assembly. The first traction conveying belt and the second traction conveying belt are oppositely arranged, and the turnover mechanism is used for bearing the cotton web output by the first traction conveying belt and the second traction conveying belt, guiding the cotton web and conveying the cotton web to the next procedure. The device can be used for detecting and removing foreign fibers of webs output by two carding machines at the same time, the production continuity and the productivity are greatly improved while the cleanliness of the medical-grade webs is guaranteed through full-chain optimization, and the device is suitable for upgrading of a high-end all-cotton spunlace non-woven fabric production line.

Description

Technical Field

[0001] The present application relates to the technical field of textile machinery and equipment, and in particular to a cotton web foreign fiber removal device and a removal method thereof. Background Art

[0002] Pure cotton spunlace non-woven fabric is also called pure cotton spunlace non-woven fabric. Pure cotton spunlace non-woven fabric is made of natural fiber pure cotton. After opening and loosening the cotton, the pure cotton is arranged into a net using a cutting-edge carding machine, a web laying machine and a drafting machine. The high-density and numerous needle-shaped water columns formed after pressure are used to promote the entanglement of cotton fibers into cloth through a spunlace machine. It is mainly used in medical and sanitary products, household hygiene products, and personal care products such as pure cotton facial towels and soft towels.

[0003] The post-bleaching production process of 100% cotton spunlace non-woven fabrics mainly includes material preparation - blowroom - opening - carding - debleaching - drying - opening - carding - cross-lapping - multi-roller drafting - spunlace - rolling - drying - and finished product winding. The carding process actually involves using a carding machine to further loosen the pure cotton fibers after opening and loosening into a single fiber state. The carding machine's card clothing removes impurities (such as cotton seed hulls, short fibers, and dust) from the fibers, straightening and arranging the disordered fibers in parallel. The carded fibers are then output from the carding machine in the form of a uniform thin cotton web (usually less than 1mm thick). At the same time, this process also removes impurities such as broken seeds and short fibers left over from the blowroom process.

[0004] However, in actual production, due to the limitations of carding machines (which comb cotton fibers and remove short lint, broken seeds, and other cotton-derived impurities within them), they struggle to effectively remove non-cotton foreign fibers from the cotton fibers. Unremoved foreign fibers enter the cross-lapping and hydroentanglement stages along with the cotton web. This can lead to uneven web thickness and clogged hydroentanglement needles, necessitating frequent adjustments to equipment parameters or maintenance downtime, hindering equipment operation, reducing production efficiency, and interfering with the stability of subsequent processes. Furthermore, this can easily lead to product quality defects and health and safety risks. For example, in sensitive fields like healthcare and maternity and infant care, where material purity is extremely high, the presence of foreign fibers in products like medical gauze or maternity and infant cotton wipes can pose health and safety concerns. Summary of the Invention

[0005] In response to the above-mentioned defects or improvement needs of the prior art, the purpose of this application is to provide a cotton web foreign fiber removal device and a removal method thereof. The device optimizes the entire chain of "parallel processing-precise removal-stable superposition-lossless steering", while ensuring the cleanliness of the medical-grade cotton web, while greatly improving production continuity and production capacity, and is suitable for the upgrade of high-end cotton spunlace non-woven fabric production lines.

[0006] To achieve the above-mentioned purpose, according to one aspect of the present application, a cotton web foreign fiber removal device is provided. The device comprises: a first foreign fiber removal mechanism, a second foreign fiber removal mechanism, and a turning mechanism; The first foreign fiber removal mechanism is arranged at the rear end of the cotton web outlet of the first carding machine, and the first foreign fiber removal mechanism includes a first frame and a first traction conveyor belt, a first foreign fiber detection component and a first spray valve component arranged on the first frame. The first traction conveyor belt is installed on the first frame and has a transmission starting point and a transmission end point. The second foreign fiber removal mechanism is arranged at the rear end of the cotton web outlet of the second carding machine, and the second foreign fiber removal mechanism includes a second frame and a second traction conveyor belt, a second foreign fiber detection component and a second spray valve component arranged on the second frame, the second traction conveyor belt is installed on the second frame and has a transmission starting point and a transmission end point, and the second traction conveyor belt and the first traction conveyor belt transmit in opposite directions; When the first traction conveyor belt and the second traction conveyor belt are located at their respective transmission end points, the first traction conveyor belt is located above the second traction conveyor belt and the unloading ends of the two belts overlap in the vertical direction. The flipping mechanism is used to receive the cotton web output from the unloading ends of the first traction conveyor belt and the second traction conveyor belt and guide and transmit the cotton web to the next process.

[0007] Furthermore, a first loading conveyor belt is provided at the front end of the first foreign fiber removing mechanism, and the loading end of the first loading conveyor belt is located below the cotton web outlet of the cotton carding machine, and the unloading end is located at the front end of the first traction conveyor belt; when the first traction conveyor belt is located at its transmission starting point, the loading end of the first traction conveyor belt is located below the unloading end of the first loading conveyor belt and the projection of the unloading end of the first loading conveyor belt in the vertical direction falls on the loading end of the first traction conveyor belt.

[0008] Furthermore, the first foreign fiber detection assembly includes a first camera module, a first light source module, an image processing module and a light source control module, and the first camera module is fixedly installed on First The shooting end of the first camera module is arranged on the frame toward the gap between the first feeding conveyor belt and the first traction conveyor belt; the first light source module is adjustable and rotatably mounted on the First On the rack, the light source irradiation range of the first light source module is suitable for overlapping with the shooting range of the first camera module.

[0009] Furthermore, a first impurity collection channel with upper and lower openings and a through-hole is fixedly provided on the outer side of the loading end of the first traction conveyor belt, the upper opening of the first impurity collection channel is its feed port, and the lower opening is its discharge port; the first spray valve assembly includes a first nozzle plate, an air pipe and a solenoid valve, and a plurality of nozzle holes are evenly arranged on the first nozzle plate along the length direction of the first frame, the first nozzle plate is fixed above the first traction conveyor belt, and the nozzle holes on the first nozzle plate are arranged toward the feed port of the first impurity collection channel.

[0010] Furthermore, a first air pipe and a first fan are provided on the first frame, the negative pressure inlet of the first fan is connected to the discharge port of the first impurity collection channel through the first air pipe, and the positive pressure discharge port is arranged downward.

[0011] Furthermore, the speed at which the first feeding conveyor belt conveys materials and the speed at which the first traction conveyor belt conveys materials are both consistent with the speed at which the carding machine 1 outputs the cotton web.

[0012] Furthermore, a second loading conveyor belt is provided at the front end of the second foreign fiber removing mechanism, and the loading end of the second loading conveyor belt is located below the cotton web outlet of the second cotton carding machine, and the unloading end is located at the front end of the second traction conveyor belt; when the second traction conveyor belt is located at its transmission starting point, the loading end of the second traction conveyor belt is located below the unloading end of the second loading conveyor belt and the projection of the unloading end of the second loading conveyor belt in the vertical direction falls on the loading end of the second traction conveyor belt.

[0013] Furthermore, the speed at which the second feeding conveyor belt conveys materials and the speed at which the second traction conveyor belt conveys materials are consistent with the speed at which the second carding machine outputs the cotton web, and the speeds at which the first carding machine and the second carding machine output the cotton web are consistent.

[0014] Furthermore, a feeding conveyor belt for conveying the cotton web to the next process is provided between the first and second cotton carding machines, and the feeding conveyor belt is located below the first traction conveyor belt and the second traction conveyor belt, and the material conveying direction of the feeding conveyor belt is perpendicular to the material conveying direction of the first traction conveyor belt; the flipping mechanism is located between the feeding conveyor belt and the second traction conveyor belt, and the flipping mechanism includes a flip plate and an inclination adjustment component, the cross-sectional area of the flip plate gradually decreases from the side close to the second frame toward the side close to the first frame, and gradually increases along the conveying direction of the feeding conveyor belt, and the flip plate realizes the adjustment of the inclination angle between the flip plate and the horizontal plane through the inclination adjustment component.

[0015] According to another aspect of the present application, a method for removing foreign fibers from a cotton web is provided, comprising the following steps: The first foreign fiber removing mechanism is started to receive the cotton web outputted from the first outlet of the carding machine through the first traction conveyor belt and to transmit the cotton web forward through the first traction conveyor belt; The cotton web on the first traction conveyor belt is detected for foreign fibers by a first foreign fiber detection component, and the foreign fibers detected by the first foreign fiber detection component are ejected by a first spray valve component; The second foreign fiber removal mechanism is started to receive the cotton web output from the second outlet of the carding machine through the second traction conveyor belt and transmit the cotton web forward through the second traction conveyor belt; The cotton web on the second traction conveyor belt is inspected for foreign fibers by the second foreign fiber detection component, and the foreign fibers detected by the second foreign fiber detection component are ejected by the second spray valve component; By controlling the movement of the first traction conveyor belt and the second traction conveyor belt, the cotton web at the unloading end of the first traction conveyor belt falls onto the cotton web of the second traction conveyor belt, forming a double-layer cotton web; The double-layer cotton web is guided to the next process by the turning mechanism.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. The device is equipped with first and second foreign fiber detection components (including a camera module, light source module, and AI image processing module) and first and second spray valve assemblies. These components simultaneously detect and locate foreign fibers in the webs output by two carding machines. Air jets precisely remove foreign fibers, and, in conjunction with a fan and impurity collection channel, quickly direct them away from the production line. This process effectively removes foreign fibers from the web, reducing problems such as uneven web thickness and spunlace needle blockage caused by foreign fibers in subsequent processes, thereby minimizing product quality defects and health and safety risks.

[0017] 2. The webs output from the two carding machines are stacked at the transmission endpoint via the opposing first and second traction conveyors to form a double-layer web. This web is then directed to the next process step via a flipping mechanism. This design integrates the web production processes of the two carding machines, avoiding the capacity limitations of a single machine. Furthermore, the double-layer web directly provides raw material for subsequent processes such as cross-lapping, reducing intermediate transfer steps and significantly improving overall production efficiency while ensuring stable web transmission.

[0018] 3. The device uses multiple designs (first, the speed of the loading conveyor belt and the traction conveyor belt are consistent with the speed of the cotton web output from the cotton carding machine to avoid deformation of the cotton web caused by the speed difference; second, the traction conveyor belt can be adjusted through the transmission component to stably carry the cotton web and maintain appropriate tension; third, the flap of the turning mechanism guides the cotton web to turn naturally through geometric constraints and inclination adjustment, adapting to cotton webs of different weights and thicknesses, and ensuring that the transmission direction after turning is consistent with the unloading conveyor belt) to ensure that the cotton web is not wrinkled, broken or piled up during transmission, reducing the loss of the cotton web during transmission and ensuring production continuity and material utilization.

[0019] 4. Multiple components of this device are adjustable: the light source module can adjust the tilt angle to optimize the detection light, and the flip mechanism uses the inclination adjustment components (mounting shaft, support plate and limit holes) to adjust the tilt angle of the flap to adapt to cotton webs of different specifications. At the same time, the control system supports parameter setting (such as sensitivity and cotton cleaning level) and operation status monitoring, allowing operators to flexibly adjust according to production needs and improve the device's adaptability to different production scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 Schematic diagram of the overall structure of the embodiment of the present application and the first and second carding machines, the first loading conveyor belt, the second loading conveyor belt, and the unloading conveyor belt (it should be noted that the first and second carding machines and the unloading conveyor belt are only schematic diagrams); Figure 2 is a side view schematic diagram of the structure of an embodiment of the present application when the first traction conveyor belt and the second traction conveyor belt are respectively located at their respective conveying end points; Figure 3 This is a partial structural diagram of an embodiment of the present application for illustrating the first frame, the first foreign fiber detection assembly, and the first spray valve assembly; Figure 4 This is a partial structural diagram showing the relationship between the various components of the first foreign fiber removal mechanism; Figure 5 It is a structural diagram of the first traction conveyor belt, the first impurity collection channel, the first air pipe and the first fan; Figure 6 is a structural diagram of the first spray valve assembly; Figure 7 yes Figure 6 Enlarged diagram of part A Figure 8 This is a partial structural diagram for illustrating the positional relationship between the first foreign fiber removal mechanism and the second foreign fiber removal mechanism; Figure 9 This is a partial structural diagram showing the relationship between the components of the second foreign fiber removal mechanism; Figure 10 yes Figure 1 Schematic diagram of the enlarged portion B.

[0022] Figure 1: Carding machine 1; 2: Carding machine 2; 3: First feeding conveyor belt; 4: Second feeding conveyor belt; 5: First foreign fiber removal mechanism; 51: First frame; 511: Frame beam; 512: Support leg; 52: First traction conveyor belt; 53: First transmission assembly; 531: First guide rail; 532: First driving member; 533: First mounting bracket; 534: Second driving member; 54: First foreign fiber detection assembly; 541: First camera module; 542: First light source module; 55: First spray valve assembly; 551: First nozzle plate; 5511: Nozzle hole; 552: Air pipe; 553: Solenoid valve; 56: , first impurity collection channel; 57, first air pipe; 58, acrylic background plate; 59, first fan; 6, second foreign fiber removal mechanism; 61, second frame; 62, second traction conveyor belt; 63, second transmission assembly; 64, second foreign fiber detection assembly; 641, second camera module; 642, second light source module; 65, second spray valve assembly; 651, second nozzle plate; 66, second impurity collection channel; 67, second air pipe; 68, second fan; 7, unloading conveyor belt; 8, turning mechanism; 81, flap; 82, inclination adjustment component; 821, mounting shaft; 822, support plate; 8221, limiting hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-10 It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0024] like Figure 1-10 As shown, according to one aspect of the present application, a cotton web foreign fiber removal device (hereinafter referred to as "this device" or "cotton web foreign fiber removal device") is provided. The cotton web foreign fiber removal device is arranged between two carding machines (hereinafter the two carding machines are named carding machine 1 and carding machine 2), and is used to remove foreign fibers from the cotton web output at the outlet of the carding machine, and effectively remove non-cotton foreign fiber impurities in the cotton web during the continuous transmission of the cotton web.

[0025] Reference Figure 1Carding machine 1 and carding machine 2 are arranged side by side, and the outlets of carding machine 1 and carding machine 2 are arranged relative to each other. The outlet height of carding machine 1 can be higher, lower, or equal to the outlet height of carding machine 2. A first feeding conveyor belt 3 is provided on the outside of the outlet of carding machine 1 for carrying and conveying the cotton web discharged from the outlet. A second feeding conveyor belt 4 is provided on the outside of the outlet of carding machine 2 for carrying and conveying the cotton web discharged from the outlet. The first feeding conveyor belt 3 and the second feeding conveyor belt 4 are located between carding machine 1 and carding machine 2, and the upper and lower materials of the first feeding conveyor belt 3 and the second feeding conveyor belt 4 are arranged facing each other. (It should be noted that carding machine 1 and carding machine 2 are only used to distinguish the two carding machines for ease of understanding and have no other implicit interpretation.) Specifically, refer to Figure 1 and Figure 2 The cotton web foreign fiber removal device in the present application includes a first foreign fiber removal mechanism 5, a second foreign fiber removal mechanism 6 and a discharge conveyor belt 7. The first foreign fiber removal mechanism 5, the second foreign fiber removal mechanism 6 and the discharge conveyor belt 7 are arranged between the cotton carding machine 1 and the cotton carding machine 2, and the first foreign fiber removal mechanism 5 is located at the rear end of the first feeding conveyor belt 3. The first foreign fiber removal mechanism 5 is used to carry and transport the cotton web output by the cotton carding machine 1, and perform online detection and removal of foreign fibers in the cotton web; the second foreign fiber removal mechanism 6 is located at the rear end of the second feeding conveyor belt 4. The second foreign fiber removal mechanism 6 is used to carry and transport the cotton web output by the cotton carding machine 2, and perform online detection and removal of foreign fibers in the cotton web; the discharge conveyor belt 7 is located between the first feeding conveyor belt 3 and the second feeding conveyor belt 4, and is used to carry and transport the cotton web after online detection and removal by the first foreign fiber removal mechanism 5 and the cotton web after online detection and removal by the second foreign fiber removal mechanism 6.

[0026] Furthermore, the first feeding conveyor belt 3 is fixedly arranged on the outside of the outlet of the cotton carding machine 1, and the feeding end of the first feeding conveyor belt 3 is located below the outlet of the cotton carding machine 1, and is used to carry the cotton web discharged from the outlet of the cotton carding machine 1 and transport the cotton web, and the working speed V0 of the first feeding conveyor belt 3 (that is, the speed at which the first feeding conveyor belt 3 transports the material during operation) is consistent with the speed at which the cotton web is output from the outlet of the cotton carding machine 1.

[0027] Reference Figure 2 、 Figure 3 and Figure 4The first foreign fiber removing mechanism 5 includes a first frame 51 and a first traction conveyor belt 52, a first transmission assembly 53, a first foreign fiber detection assembly 54, a first spray valve assembly 55 and a control system 1 installed on the first frame 51. The first traction conveyor belt 52 is used to carry the cotton web at the unloading end of the first feeding conveyor belt 3 and transport the cotton web forward. The first foreign fiber detection assembly 54 is used to detect, identify and locate foreign fibers in the cotton web during this process. The first spray valve assembly 55 is used to knock the detected foreign fibers out of the cotton web. The first traction conveyor belt 52, the first transmission assembly 53, the first foreign fiber detection assembly 54 and the first spray valve assembly 55 are all electrically connected to the control system 1 and controlled by the control system 1.

[0028] Specifically, the first frame 51 is preferably a gantry frame, which is arranged behind the unloading end of the first loading conveyor belt 3. The first frame 51 includes a horizontally arranged frame beam 511, two sets of support legs 512 fixed at both ends of the frame beam 511 to support the frame beam 511, and a number of support rods and reinforcement members arranged between the two sets of support legs 512. The support legs 512 are arranged vertically, and the frame beam 511 is located at the top of the support legs 512. The length direction of the frame beam 511 is the length direction of the first frame 51, and the width direction of the frame beam 511 is the width direction of the first frame 51. The length direction of the first frame 51 is parallel to the width direction of the first loading conveyor belt 3.

[0029] Reference Figure 4 The first traction conveyor belt 52 and the first transmission assembly 53 are both located below the frame beam 511, and the first traction conveyor belt 52 is installed between the two sets of support legs 512 of the first frame 51 through the first transmission assembly 53. The first traction conveyor belt 52 can move up and down with the first transmission assembly 53 or move horizontally along the width direction of the first frame 51 with the first transmission assembly 53, so as to stably receive the cotton web at the unloading end of the first feeding conveyor belt 3 when the cotton web foreign fiber removing device is started, and effectively pull and transmit the cotton web.

[0030] Furthermore, the first traction conveyor 52 includes a transmission belt, active and passive rollers for supporting the transmission belt and material and adjusting the transmission belt tension, a drive assembly for providing power to drive the transmission belt, and a bracket serving as a support structure for the first traction conveyor 52. The length of the transmission belt and bracket coincides with the width of the first frame 51. The width of the transmission belt also coincides with the length of the first frame 51, and the transmission belt transports material along the width of the first frame 51.

[0031] Reference Figure 4 The first transmission assembly 53 includes a first guide rail 531 , a first driving member 532 , a first mounting bracket 533 and a second driving member 534 .

[0032] The first guide rail 531 is fixedly installed between the two groups of support legs 512 of the first frame 51. It is preferably a linear guide rail, and preferably two groups. The two groups of first guide rails 531 are respectively fixedly installed on the two groups of support legs 512 and are arranged relative to each other. The length direction of the first guide rail 531 is consistent with the width direction of the first frame 51; the first mounting frame 533 is slidably connected to the first guide rail 531 for installing the first traction conveyor belt 52 and supporting the first traction conveyor belt 52.

[0033] The first driving member 532 is preferably a rodless cylinder, which is fixedly mounted on the first guide rail 531 / fixedly mounted on the support leg 512 / fixedly mounted between the first guide rail 531 and the support leg 512. The movable end of the first driving member 532 is fixedly connected to the first mounting frame 533. The first driving member 532 can drive the first mounting frame 533 to move back and forth in a straight line along the width direction of the first frame 51; the second driving member 534 is preferably a cylinder, which is fixedly mounted on the first mounting frame 533. The bracket of the first traction conveyor belt 52 is fixedly connected to the driving end of the second driving member 534. The first traction conveyor belt 52 can be lifted and moved in the vertical direction under the drive of the second driving member 534, and can be driven by the first driving member 532 to slide back and forth along the width direction of the first frame 51 together with the second driving member 534 and the first mounting frame 533; the first driving member 532 and the second driving member 534 are both electrically connected to the control system one and controlled by the control system one.

[0034] Further, look back Figure 2 In the embodiment of the present application, the first traction conveyor belt 52 is provided with a conveying start point and a conveying end point. The conveying start point of the first traction conveyor belt 52 is: the first traction conveyor belt 52 is located below the first loading conveyor belt 3, and the projection of the unloading end of the first loading conveyor belt 3 can fall on the loading end of the first traction conveyor belt 52; the conveying end point of the first traction conveyor belt 52 is: the loading end of the first traction conveyor belt 52 extends out of the first frame 51 and the loading end of the first traction conveyor belt 52 is flush with the unloading end of the first loading conveyor belt 3.

[0035] When the cotton web foreign fiber removal device in the embodiment of the present application is started, the operator can control the first driving member 532 and the second driving member 534 through the control system 1 to drive the first traction conveyor belt 52 to move to the conveying starting point of the first traction conveyor belt 52.

[0036] Furthermore, since the cotton web is relatively light and the carding machine outputs the cotton web at a relatively high speed, typically 30 m / min to 70 m / min, after the first traction conveyor 52 reaches its starting point, the transmission speed V1 of the first traction conveyor 52 is controlled so that V1 = V0. This allows the first traction conveyor 52 to effectively receive the cotton web that falls from the unloading end of the first loading conveyor 3, thereby preventing the cotton web from accumulating between the first loading conveyor 3 and the first traction conveyor 52 or causing wrinkles in the cotton web due to fluctuations in the transmission speed between the first traction conveyor 52 and the first loading conveyor 3.

[0037] Further, refer to Figure 3 and Figure 4 The first foreign fiber detection component 54 includes a first camera module 541, a first light source module 542, an image processing module and a light source control module.

[0038] The first camera module 541 includes an industrial camera and a camera mounting bracket fixedly mounted above the beam 511 of the first frame 51. In the embodiment of the present application, the industrial cameras are preferably arranged in groups of four, spaced evenly along the length of the beam 511 and symmetrically about the centerline of the beam 511. The industrial cameras are fixedly connected to the beam 511 via the camera mounting bracket, with the shooting ends of the industrial cameras arranged vertically downward. The beam 511 is provided with multiple observation ports for the industrial cameras to shoot, each of which is fixed with a transparent light-transmitting panel.

[0039] The first light source module 542 includes an LED light strip and a light strip mounting profile. The LED light strip is locked and fixed on the support leg 512 of the first rack 51 through the light strip mounting profile, and the LED light strip light source is irradiated downward. The LED light strip realizes its horizontal pitch angle adjustment through the light strip mounting profile; the light source control module is composed of a light source control board and related controllers. The light source control board and related controllers are connected to the LED light strip light source signal. The control system 1 is connected to the light source control module in a two-way signal manner, and the control system 1 realizes the light source opening and closing and brightness adjustment of the LED light strip through the light source control module.

[0040] In this embodiment of the present application, the image processing module is preferably an embedded processing unit that hosts and runs an AI deep learning inference engine (i.e., the "AI module," which includes both hardware and software code), such as the NVIDIA Jetson Nano, NVIDIA Jetson Orin Nano, iDSP intelligent processing module, or similar. The AI module uses a deep learning model to detect foreign fibers in cotton in real time, outputs their location, type, and confidence level, and generates removal instructions for the image processing module. The image processing module is directly connected to the industrial camera and communicates bidirectionally with the control system.

[0041] In a preferred embodiment of the present application, control system one includes a host computer and a data information interaction module. The host computer and the data information interaction module are connected by bidirectional signals and provide a human-computer interaction interface. The data information interaction module is connected by bidirectional signals to the LED light source control module, and the output end of the data information interaction module is connected by signals to the first spray valve assembly 55. The image processing module performs real-time analysis of each captured frame based on the high-resolution image and speed information of the cotton web collected in real time, detects and locates foreign matter therein, and performs preliminary logical judgment based on the recognition results of the AI module (such as whether the type, location, and confidence level of the foreign matter meet the activation threshold of the first spray valve assembly 55), generating a high-speed control signal to control system one. The data information interaction module is capable of receiving the detection results of the AI module and linking the first spray valve assembly 55 to eject foreign fibers.

[0042] Operators can use the control system to set parameters (such as sensitivity, cotton cleaning level, equipment start and stop, etc.), monitor equipment operating status (output, fault information, foreign fiber removal rate statistics, real-time image display, etc.), view historical data, perform system configuration and maintenance, and interact with the cloud platform for global scheduling and optimization.

[0043] Further, refer to Figure 6 and Figure 7 The first spray valve assembly 55 includes a first nozzle plate 551 , an air pipe 552 and a solenoid valve 553 .

[0044] In the embodiment of the present application, the first nozzle plate 551 is preferably a straight, long strip plate. The first nozzle plate 551 is fixedly arranged between the two sets of support legs 512 of the first frame 51 and is located above the first traction conveyor belt 52. The first nozzle plate 551 is parallel to the conveying surface of the first traction conveyor belt 52. The length direction of the first nozzle plate 551 is consistent with the length direction of the first frame 51. The first nozzle plate 551 is evenly provided with a plurality of nozzle holes 5511 along the length direction of the first frame 51. One end of the air pipe 552 is connected to the first frame 51. The air inlet of the nozzle hole 5511 is connected to the air outlet of the solenoid valve 553; the solenoid valve 553 is fixedly mounted on the frame beam 511, and multiple solenoid valves 553 are provided. The air inlet of the solenoid valve 553 is connected to an external air source for air supply. The solenoid valve 553 and its controller communicate with the control system in a two-way manner. The operator can control the power on and off of the solenoid valve 553 through the control system to control whether the nozzle hole 5511 is to be sprayed, thereby spraying air through the nozzle hole 5511 to knock out foreign fibers in the cotton web. (It should be noted that in the embodiment of this application, for the convenience of display, Figure 6 Only one air pipe is shown. In fact, each air inlet on the first nozzle plate and the second nozzle plate corresponds to an air pipe. In other figures, the air pipe 552 is not shown. Further, look back Figure 4A first impurity collecting channel 56 is fixedly provided on the outer side of the feeding end of the first traction conveyor belt 52. The first impurity collecting channel 56 is connected from top to bottom and is open at the top and bottom. The upper opening of the first impurity collecting channel 56 is its feed port and the lower opening is its discharge port. Its feed port is close to the side wall of one side of the first traction conveyor belt 52 and is in contact with the belt surface of the feeding end of the first traction conveyor belt 52, and the plane where the feed port opening is located is not higher than the conveying surface of the first traction conveyor belt 52; its discharge port is located below the first traction conveyor belt 52, and the discharge port is connected to a first air pipe 57 for guiding away the ejected foreign fibers. The opening cross-sectional area of the first impurity collecting channel 56 gradually decreases from top to bottom, that is, it is a closing design, so as to increase the area of the first impurity collecting channel 56 for collecting foreign fibers, impurities and miscellaneous cotton, and quickly guide the ejected foreign fibers and miscellaneous cotton away from the first traction conveyor belt 52.

[0045] An acrylic background plate 58 is provided outside the feed opening of the first impurity collection channel 56, adapted to cooperate with the first camera module 541 and the first light source module 542. The acrylic background plate 58 is a rectangular plate, its length aligned with the length of the first frame 51 and its width aligned with the width of the first frame 51. The sum of the widths of the first impurity collection channel 56 and the acrylic background plate 58 is less than the width of the blanking gap.

[0046] Combine Figure 4 and Figure 1 When the cotton web falls from the first feeding conveyor belt 3 to the first traction conveyor belt 52, the control system is used to control the first driving member 532 and the second driving member 534 to drive the first traction conveyor belt 52 away from the first feeding conveyor belt 3 and make the first traction conveyor belt 52 rise. At the same time, the cotton web is pulled by the friction between the first traction conveyor belt 52 and the cotton web, so that the cotton web is subjected to a certain pulling force and moves forward with the first traction conveyor belt 52 until the first traction conveyor belt 52 moves to its conveying end point.

[0047] When the first traction conveyor belt 52 is at its conveying end point, the gap between the first traction conveyor belt 52 and the first loading conveyor belt 3 is the unloading gap. The first impurity collection channel 56 and the acrylic background plate 58 are both located within this unloading gap, with the acrylic background plate 58 located in front of the first impurity collection channel 56. Simultaneously, the industrial camera in the first camera module 541 is located above the acrylic background plate 58, with the industrial camera's vertical projection falling on the acrylic background plate 58. The LED light strip in the first light source module 542 is located in front of the acrylic background plate 58 and the first impurity collection channel 56, with the light source of the LED light strip directed toward the acrylic background plate 58. The area illuminated by the light source of the LED light strip on the acrylic background plate 58 is within the shooting range of the industrial camera. The air outlet of the nozzle hole 5511 on the first nozzle plate 551 is arranged toward the unloading gap and the feed port of the first impurity collection channel 56.

[0048] As the cotton web output from the carding machine 1 is transported forward along the first feeding conveyor belt 3, the first traction conveyor belt 52 is first positioned at its starting point to receive the cotton web. When the cotton web falls onto the first traction conveyor belt 52, the first traction conveyor belt 52 immediately moves away from the first feeding conveyor belt 3 until it reaches its end point, at which point the first traction conveyor belt 52 no longer changes position relative to the first frame 51. During this process, the cotton web is continuously transported forward along the first feeding conveyor belt and the first traction conveyor belt 52. After the first traction conveyor belt 52 reaches its end point, the first foreign fiber detection assembly 54 continuously detects the cotton web, identifies and locates foreign fibers in the cotton web, and transmits information such as the type and location of the foreign fibers to the control system 1. The control system 1 activates the solenoid valve 553 at the corresponding position to instantly eliminate the detected foreign fibers.

[0049] Furthermore, in order to achieve the continuity and stability of cotton web transmission, in the process of the first traction conveyor belt 52 moving from its transmission starting point to the transmission end point, the transmission speed of the first traction conveyor belt 52 is preferably V1, V1=V0; in this process, by making the transmission speed of the first traction conveyor belt 52 and the transmission speed of the first feeding conveyor belt 3 consistent with the speed of the cotton web output from the cotton carding machine 1 outlet, it can effectively avoid the cotton web from piling up and wrinkling or breaking front and back and poor connection caused by the transmission speed difference / speed fluctuation between the first feeding conveyor belt 3 and the first traction conveyor belt 52.

[0050] Further, refer to Figure 4The end of the first air pipe 57 away from the first impurity collecting channel 56 is connected to the first fan 59. The first fan 59 is located below the first traction conveyor belt 52 and is fixedly connected to the first frame 51. The negative pressure inlet of the first fan 59 is connected to the first air pipe 57, and the positive pressure discharge port is arranged downward. The positive pressure discharge port of the first fan 59 can be connected to a collection bag, a collection cover, a collection box or a hose. The first fan 59 is electrically connected to the control system. When the first foreign fiber detection component 54 detects foreign fibers, the first fan 59 can cooperate with the first spray valve component 55 and provide negative pressure suction to suck the foreign fibers and impurity cotton in the first impurity collecting channel 56 and the first air pipe 57, and efficiently guide the aforementioned foreign fibers and impurity cotton away from the device.

[0051] Furthermore, the second feeding conveyor belt 4 and the second foreign fiber removing mechanism 6 are arranged in sequence on the outside of the outlet of the cotton carding machine 2, and the second foreign fiber removing mechanism 6 is arranged adjacent to the first foreign fiber removing mechanism 5. The first feeding conveyor belt 3, the first foreign fiber removing mechanism 5, the second foreign fiber removing mechanism 6 and the second feeding conveyor belt 4 are arranged in sequence from left to right along the direction shown in the figure.

[0052] Specifically, the second feeding conveyor belt 4 is fixedly arranged outside the outlet of the second carding machine 2, and the feeding end of the second feeding conveyor belt 4 is located below the outlet of the second carding machine 2 to carry the cotton web discharged from the outlet of the second carding machine 2 and transport the cotton web.

[0053] In the preferred embodiment of the present application, when the cotton web foreign fiber removal device is in operation, the speed at which the cotton web is output from the outlet of the carding machine 1 is consistent with the speed at which the cotton web is output from the outlet of the carding machine 2, and the working speed V2 of the second feeding conveyor belt 4 (i.e., the speed at which the second feeding conveyor belt 4 transports the material) is consistent with the speed at which the cotton web is output from the outlet of the carding machine 2.

[0054] Further, refer to Figure 8 and Figure 9 The second foreign fiber removing mechanism 6 is the same as the first foreign fiber removing mechanism 5. The structure of the second foreign fiber removing mechanism 6 is basically the same as that of the first foreign fiber removing mechanism 5. The second foreign fiber removing mechanism 6 includes a second frame 61 and a second traction conveyor belt 62, a second transmission assembly 63, a second foreign fiber detection assembly 64, a second spray valve assembly 65 and a second control system installed on the second frame 61. The control principles of the control system one and the control system two are consistent. The second traction conveyor belt 62, the second transmission assembly 63, the second foreign fiber detection assembly 64 and the second spray valve assembly 65 are all electrically connected to the control system two and controlled by the control system two. The control system one and the control system two are relatively independent.

[0055] Specifically, refer to Figure 8 and Figure 9The second rack 61 is the same as the first rack 51 , and the second rack 61 is also preferably a portal rack. The second rack 61 and the first rack 51 are arranged side by side along the width direction of the first rack 51 .

[0056] The second traction conveyor belt 62 is the same as the first traction conveyor belt 52. The second traction conveyor belt 62 is installed between the two sets of support legs 512 of the second frame 61 through the second transmission component 63, and the second traction conveyor belt 62 can move up and down with the second transmission component 63 or move horizontally along the width direction of the second frame 61, so as to stably receive the cotton web at the unloading end of the second feeding conveyor belt 4 when the cotton web foreign fiber removing device is started, and effectively pull and transmit the cotton web.

[0057] The second transmission assembly 63 is identical to the first transmission assembly 53 and comprises a second guide rail, a third drive member, a second mounting frame, and a fourth drive member. The second guide rail is identical to the first guide rail 531, the second mounting frame is identical to the first mounting frame 533, the third drive member is identical to the first drive member 532, and the fourth drive member is identical to the second drive member 534. The second traction conveyor belt 62 is capable of vertical movement under the drive of the fourth drive member and of reciprocating sliding along the width of the second frame 61, driven by the third drive member.

[0058] Furthermore, the second traction conveyor belt 62 is also provided with a starting point and a termination point. The starting point of the second traction conveyor belt is: the second traction conveyor belt 62 is located below the second loading conveyor belt 4, and the projection of the unloading end of the second loading conveyor belt 4 falls on the loading end of the second traction conveyor belt 62. The termination point of the second traction conveyor belt is: the loading end of the second traction conveyor belt 62 is flush with the unloading end of the second loading conveyor belt 4, and the second traction conveyor belt 62 is located below the first traction conveyor belt 52, and the projection of the unloading end of the first traction conveyor belt 52 in the vertical direction can fall on the unloading end of the second traction conveyor belt 62.

[0059] In the preferred embodiment of the present application, refer to Figure 8 and Figure 9The second guide rail is installed at a lower position than the first guide rail 531. The starting point of the second traction conveyor 62 is lower than the starting point of the first traction conveyor 52, and the end point of the second traction conveyor 62 is lower than the end point of the first traction conveyor 52. As the cotton web output from the carding machine 2 is transported forward along the second loading conveyor 4, the second traction conveyor 62 first reaches its starting point and receives the web. When the web falls onto the second traction conveyor 62, it immediately moves away from the second loading conveyor 4 until it reaches its end point. Furthermore, to ensure continuous and stable web transport, the transmission speed of the second traction conveyor 62 is preferably V2, where V2 = V1 = V0.

[0060] Further, refer to Figure 8 and Figure 9 The second foreign fiber detection component 64 is the same as the first foreign fiber detection component 54. The second foreign fiber detection component 64 is composed of a second camera module 641, a second light source module 642, an image processing module and a light source control module. The second camera module 641 is the same as the first camera module 541. The second camera module 641 includes an industrial camera and a camera mounting bracket fixedly installed above the frame beam 511 of the second frame 61; the second light source module 642 is the same as the first light source module 542. The second light source module 642 includes an LED light strip and a light strip mounting profile installed on the support leg 512 of the second frame 61. The LED light strip can achieve its horizontal inclination angle adjustment through the light strip mounting profile; the second foreign fiber detection component 64 is installed on the second frame 61, and is used to detect, identify and locate foreign fibers in the cotton net on the second traction conveyor belt 62.

[0061] The second spray valve assembly 65 is the same as the first spray valve assembly 55. The second spray valve assembly 65 includes a second nozzle plate 651, an air pipe 552 and a solenoid valve 553. The specifications of the second nozzle plate 651 are consistent with those of the first nozzle plate 551. The second spray valve assembly 65 is used to knock out the detected foreign fibers from the cotton web.

[0062] Further, Figure 8 and Figure 9A second impurity collection channel 66 is fixedly provided on the outer side of the feeding end of the second traction conveyor belt 62. The second impurity collection channel 66 is the same as the first impurity collection channel 56. The second impurity collection channel 66 is connected from top to bottom and is open at both the top and bottom. The upper opening of the second impurity collection channel 66 is its feed port, and the lower opening is its discharge port. Its feed port is close to the side wall of the second traction conveyor belt 62 and abuts against the belt surface of the feeding end of the second traction conveyor belt 62. Its discharge port is located below the second traction conveyor belt 62. An acrylic background plate 58 for cooperating with the second camera module 641 and the second light source module 642 is provided on the outer side of the feed port of the second impurity collection channel 66. The discharge port of the second impurity collection channel 66 is connected to a second air pipe 67 for guiding away the ejected foreign fibers.

[0063] The end of the second air pipe 67 away from the second impurity collection channel 66 is connected to the second fan 68. The second fan 68 is located below the second traction conveyor 62 and is fixedly connected to the second frame 61. The negative pressure inlet of the second fan 68 is connected to the second air pipe 67, and the positive pressure discharge port is arranged downward. The positive pressure discharge port of the second fan 68 can also be connected to a collection bag, a collection cover, a collection box or a hose. The second fan 68 is electrically connected to the control system 2; when the second foreign fiber detection component 64 detects foreign fibers, the second fan 68 can cooperate with the second spray valve component 65 and provide negative pressure suction to suck the foreign fibers and impurity cotton at the second impurity collection channel 66 and the second air pipe 67, and efficiently guide the aforementioned foreign fibers and impurity cotton away from the second traction conveyor 62.

[0064] During the operation of this device, Figure 1 and Figure 2 The first traction conveyor belt 52 and the second traction conveyor belt 62 are first located at their respective conveying starting points, and the cotton web at the outlet of the carding machine 1 is forwarded to the first traction conveyor belt 52 via the first feeding conveyor belt 3, and the cotton web at the outlet of the carding machine 2 is forwarded to the second traction conveyor belt 62 via the second feeding conveyor belt 4, so as to realize the feeding process of the cotton web at the outlet of the carding machine 1 and the cotton web at the outlet of the carding machine 2 to this device.

[0065] After the cotton web at the outlet of carding machine 1 and the cotton web at the outlet of carding machine 2 complete their loading process, the first traction conveyor belt 52 and the second traction conveyor belt 62 move to their transmission end points respectively. The cotton web at the outlet of carding machine 1 is detected and knocked out in sequence by the first foreign fiber detection component 54 and the first spray valve component 55 between the first loading conveyor belt 3 and the first traction conveyor belt 52, and the foreign fibers are knocked out and the foreign fibers contained in the cotton are discharged through the first impurity collecting channel 56, the first air pipe 57 and the first fan 59; the cotton web at the outlet of carding machine 2 is detected and knocked out in sequence by the second foreign fiber detection component 64 and the second spray valve component 65 between the second loading conveyor belt 4 and the second traction conveyor belt 62, and the foreign fibers are knocked out and the foreign fibers contained in the cotton are discharged through the second impurity collecting channel 66, the second air pipe 67 and the second fan 68.

[0066] Further, refer to Figure 1 and Figure 2 When the first traction conveyor belt 52 and the second traction conveyor belt 62 are respectively located at their respective conveying end points, the first traction conveyor belt is located above the second traction conveyor belt 62, and the projection of the first traction conveyor belt 52 in the vertical direction falls on the first traction conveyor belt 52.

[0067] The unloading conveyor belt 7 is located below the first foreign fiber removing mechanism 5 and the second foreign fiber removing mechanism 6, and the direction in which the unloading conveyor belt 7 conveys the cotton web is perpendicular to the direction in which the first traction conveyor belt 52 conveys the cotton web. A flipping mechanism 8 is provided between the unloading conveyor belt 7 and the second traction conveyor belt 62 for synchronously flipping and guiding the cotton web output by the first traction conveyor belt 52 and the cotton web output by the second traction conveyor belt 62.

[0068] Specifically, refer to Figure 10 The flipping mechanism 8 includes a flap 81 and an inclination adjusting component 82. The flap 81 is installed between the first frame 51 and the second frame 61 through the inclination adjusting component 82. The cross-sectional area of the flap 81 gradually increases along the conveying direction of the unloading conveyor belt 7 and gradually decreases from the side close to the second frame 61 to the side close to the first frame 51. The inclination adjusting component 82 is used to adjust the inclination angle between the flap 81 and the horizontal plane.

[0069] During the operation of this device, as the first traction conveyor belt 52 and the second traction conveyor belt 62 continue to transport the cotton web, the cotton web on the first traction conveyor belt 52 can fall onto the second traction conveyor belt 62 under the action of gravity after foreign fiber detection and removal, forming a double-layer cotton web together with the cotton web transported on the second traction conveyor belt 62 that has completed foreign fiber detection and removal. The double-layer cotton web falls onto the flap 81 under the combined action of the driving action of the first and second traction conveyor belts 52 and 62 and the action of gravity, is flipped and guided by the flap 81, and falls onto the conveying surface of the unloading conveyor belt 7, and is finally conveyed by the unloading conveyor belt 7 to the next process.

[0070] Further, in the preferred embodiment of the present application, referring to Figure 10 The flap 81 is configured as a right-angled triangle with uniform thickness. One right-angled side of the flap 81 is located at its top, and the right-angled side is the short right-angled side of the flap 81. The length direction of the right-angled side is consistent with the width direction of the conveyor belt of the first traction conveyor belt 52. The other right-angled side of the flap 81 is located on one side of the flap 81 and is inclined downward from the second frame 61 toward the first frame 51. The right-angled side is the long right-angled side of the flap 81. As the cotton web on the first traction conveyor belt 52 and the cotton web on the second traction conveyor belt 62 form a double-layer cotton web and fall downward under the action of gravity, the double-layer cotton web falls onto the flap 81 and continues to move downward along the long right-angled side of the flap 81. The oblique side of the flap 81 acts as a "guide edge" in this process and forms a geometric constraint on the cotton web, so that the movement direction of the cotton web is turned under the combined action of its own gravity, material flexibility and the geometric constraint of the flap 81, guiding the movement direction of the cotton web from the flap 81. The right-angled long side direction turns to the right-angled short side direction of the flap 81, so that the cotton web can realize natural turning during the transmission process, and the cotton web after turning can fall onto the unloading conveyor belt 7. The movement direction of the cotton web after turning is consistent with the material conveying direction of the unloading conveyor belt 7. While ensuring the continuous forward transmission of the cotton web, the double-layer cotton web is automatically folded and guided, thereby realizing the cross-laying between the cotton carding machine 1 and the cotton carding machine 2, and effectively improving the production efficiency of the cotton web while ensuring the stable transmission of the cotton web without wrinkling or breakage.

[0071] Further, refer to Figure 10The inclination adjustment component 82 includes a mounting shaft 821 and a support plate 822 . The mounting shaft 821 is fixedly connected to the right-angled side at the top of the flap 81 , and both ends of the mounting shaft 821 extend out of the flap 81 . The support plate 822 is preferably an L-shaped plate, and the side where the short side of the support plate 822 is located is slidably connected to the support leg 512 of the second frame 61 in the vertical direction, and is locked and fixed to the support leg 512 by screws or other screw parts; the side where the long side of the support plate 822 is located is located on the side of the second frame 61 close to the first frame 51 and extends out of the support leg 512, and the side where the long side of the support plate 822 is located is further penetrated by a plurality of limiting holes 8221 for plugging in the installation shaft 821, and the side where the long side of the support plate 822 is located is preferably a right-angled triangle plate, and the multiple limiting holes 8221 have the same specifications, and the multiple limiting holes 8221 are arranged horizontally and vertically along the two right-angled sides of the side where the long side of the support plate 822 is located, and the aperture of the limiting hole 8221 is consistent with the radius of the installation shaft 821.

[0072] In this embodiment, two sets of support plates 822 are provided, each of which is locked and fixed relative to the two sets of support legs 512 of the second frame 61. The top of the flap 81 is connected to the two sets of support plates 822 via a mounting shaft 821 and a stopper hole 8221, while the bottom abuts against the unloading conveyor 7, thereby achieving a fixed position of the flap 81 between the first frame 51, the second frame 61, and the unloading conveyor 7. During operation, the operator can select the appropriate stopper hole 821 according to the actual situation of the equipment installation site, insert the two ends of the mounting shaft 821 into the corresponding stopper holes 821, and mate the mounting shaft 821 with the stopper holes 8221 on the support plates 822 to install the flap 81 and adjust its tilt angle. This allows the device to accommodate cotton webs of varying weights and thicknesses, ensuring continuous forward conveyance of the cotton web while achieving automatic folding and guiding of the double-layer cotton web, thereby improving cotton web conveying efficiency.

[0073] The implementation principle of a cotton web foreign fiber removal device disclosed in the embodiment of the present application is: During operation, the carding machine 1 and the first feeding conveyor belt 3 are first started, and then the first foreign fiber removing mechanism 5 is started. Before the cotton web output from the carding machine 1 outlet reaches the first traction conveyor belt 52, the first traction conveyor belt 52 is driven to move to its transmission starting point, and the cotton web output from the carding machine 1 outlet is taken over by the first traction conveyor belt 52; when the first traction conveyor belt 52 takes over the cotton web at the unloading end of the first feeding conveyor belt 3, the first traction conveyor belt 52 is immediately driven to drive the cotton web to move to its transmission end point, and the cotton web is continuously transported forward in the process, and the foreign fibers in the cotton web are detected, identified and located by the first foreign fiber detection component 54, the detected foreign fibers are knocked out by the first spray valve component 55, and the foreign fibers and impurity cotton are taken away from the production line through the first impurity collection channel 56, the first air pipe 57 and the first fan 59, thereby effectively realizing the online removal and treatment of foreign fiber impurities in the cotton web output by the carding machine 1.

[0074] At the same time, before the cotton web on the first traction conveyor belt 52 falls from the unloading end to the second traction conveyor belt 62, the carding machine 2, the second feeding conveyor belt 4 and the first foreign fiber removing mechanism 5 are started according to the above steps, and the second traction conveyor belt 62 is used to receive and transmit the cotton web output from the outlet of the carding machine 2, and the foreign fibers in the cotton web on the second traction conveyor belt 62 are detected, identified and located by the second foreign fiber detection component 64. The detected foreign fibers are knocked out by the second spray valve component 65, the second impurity collection channel 66, the second air pipe 67 and the second fan 68, and the foreign fibers and impure cotton are taken away from the production line, so as to effectively remove the foreign fiber impurities in the cotton web output from the outlet of the carding machine 2, and improve the cleanliness of the cotton web.

[0075] Furthermore, as the device continues to operate, the cotton web at the unloading end of the first traction conveyor belt 52 can fall onto the cotton web of the second traction conveyor belt 62 and form a double-layer cotton web under the action of gravity and inertia. The double-layer cotton web is continuously transported forward and automatically folded and turned via the flap 81, falling onto the unloading conveyor belt 7 and being transported to the next process by the unloading conveyor belt 7. The device as a whole realizes the parallel processing of the cotton webs output by the two carding machines, while ensuring the stable transmission of the cotton web without wrinkling or breaking, and realizing the efficient and precise removal of foreign fiber impurities in the cotton web; through the full chain optimization of "parallel processing-precise removal-stable superposition-lossless turning", while ensuring the cleanliness of medical-grade cotton webs, it greatly improves production continuity and production capacity, effectively improves the efficiency of cotton web production, and is suitable for the upgrade of high-end cotton spunlace non-woven fabric production lines.

[0076] like Figure 1-10 As shown, according to another aspect of the present application, a method for removing foreign fibers from a cotton web is provided. The method for removing foreign fibers from a cotton web comprises the following steps: S1. Start the first foreign fiber removing mechanism 5 to receive the cotton web output from the carding machine 1 outlet through the first traction conveyor 52 and transmit the cotton web forward through the first traction conveyor 52.

[0077] Specifically, a first feeding conveyor belt 3 is arranged between the first traction conveyor belt 52 and the outlet of the cotton carding machine 1. Before the cotton net output from the outlet of the cotton carding machine 1 reaches the first traction conveyor belt 52, the first traction conveyor belt 52 moves to its transmission starting point; the cotton net output from the outlet of the cotton carding machine 1 is transmitted forward through the first feeding conveyor belt 3, and falls onto the first traction conveyor belt 52 at its transmission starting point.

[0078] During this process, the first traction conveyor belt 52 continuously transports the material forward, and the speed at which the first traction conveyor belt 52 transports the cotton web and the speed at which the first feeding conveyor belt 3 transports the cotton web are consistent with the speed at which the cotton web is output from the carding machine 1 outlet.

[0079] S2. The cotton web on the first traction conveyor belt 52 is inspected for foreign fibers by the first foreign fiber detection component 54 , and the foreign fibers detected by the first foreign fiber detection component 54 are knocked out by the first spray valve component 55 .

[0080] Specifically, when the first traction conveyor 52 receives the cotton web from the unloading end of the first loading conveyor 3, it drives the cotton web to its conveying destination, continuously conveying the cotton web forward during this process. During this process, the first foreign fiber detection assembly 54 detects, identifies, and locates foreign fibers in the cotton web. The first spray valve assembly 55 removes the detected foreign fibers. The first impurity collection channel 56, first air pipe 57, and first fan 59 remove the removed foreign fibers and impurity cotton from the production line.

[0081] S3. Start the second foreign fiber removing mechanism 6 to receive the cotton web output from the carding machine 2 outlet 2 through the second traction conveyor 62 and transmit the cotton web forward through the second traction conveyor 62.

[0082] Specifically, a second feeding conveyor belt 4 is arranged between the second traction conveyor belt 62 and the outlet of the cotton carding machine 2. Before the cotton net output from the outlet of the cotton carding machine 2 reaches the second traction conveyor belt 62, the second traction conveyor belt 62 moves to its transmission starting point; the cotton net output from the outlet of the cotton carding machine 2 is transmitted forward through the second feeding conveyor belt 4, and falls onto the second traction conveyor belt 62 at the transmission starting point of the second traction conveyor belt 62.

[0083] During this process, the second traction conveyor belt 62 continues to transport materials forward, and the speed at which the second traction conveyor belt 62 transports the cotton web is consistent with the speed at which the second feeding conveyor belt 4 transports the cotton web, and the speed at which the cotton web is output from the outlet of the carding machine 2 2 is consistent with the speed at which the cotton web is output from the outlet of the carding machine 1 1.

[0084] S4. The cotton web on the second traction conveyor belt 62 is inspected for foreign fibers by the second foreign fiber detection assembly 64, and the foreign fibers detected by the second foreign fiber detection assembly 64 are ejected by the second spray valve assembly 65. S5. By controlling the movement of the first traction conveyor belt 52 and the second traction conveyor belt 62, the cotton web at the unloading end of the first traction conveyor belt 52 falls onto the cotton web of the second traction conveyor belt 62, forming a double-layer cotton web.

[0085] Specifically, when the second traction conveyor 62 receives the cotton web from the discharge end of the second loading conveyor 4, it drives the cotton web to its delivery destination, continuously conveying the cotton web forward during this process. During this process, the second foreign fiber detection assembly 64 detects, identifies, and locates foreign fibers in the cotton web. The second spray valve assembly 65 removes the detected foreign fibers. The second impurity collection channel 66, second air pipe 67, and second fan 68 carry the removed foreign fibers and impurity cotton away from the production line.

[0086] It should be noted that, in the process of foreign fiber detection and knocking out of the cotton web output from the outlet of the cotton carding machine 1 and the cotton carding machine 2, the first traction conveyor belt 52 and the second traction conveyor belt 62 are respectively located at their respective conveying end points, and the unloading end of the first traction conveyor belt 52 is located directly above the unloading end of the second traction conveyor belt 62. The cotton web at the unloading end of the first traction conveyor belt 52 can fall onto the cotton web at the unloading end of the second traction conveyor belt 62 under the action of gravity. The cotton web transmitted by the first traction conveyor belt 52 and the cotton web transmitted by the second traction conveyor belt 62 together form a double-layer cotton web.

[0087] S6. The double-layer cotton web is guided to the next process through the turning mechanism 8.

[0088] Specifically, a discharge conveyor belt 7 for transferring the cotton web to the next process is provided between the first traction conveyor belt 52 and the second traction conveyor belt 62. In the embodiment of the present application, the transfer direction of the discharge conveyor belt 7 is orthogonal to the first traction conveyor belt 52. The flipping mechanism 8 is composed of a flap 81 and an inclination adjustment component 82. The flap 81 is located between the discharge conveyor belt 7 and the second traction conveyor belt 62. The double-layer cotton web falls onto the flap 81 under the action of gravity. The oblique edge of the flap 81 acts as a "guide edge" in this process and forms a geometric constraint on the cotton web, so that the movement direction of the cotton web is turned under the combined action of its own gravity, material flexibility and the geometric constraint of the flap 81; the double-layer cotton web is guided by the flap 81 to fall onto the discharge conveyor belt 7 after being turned, and is transferred to the next process through the discharge conveyor belt 7.

[0089] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0090] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cotton web foreign fiber removal device, characterized by: It comprises a first foreign fiber removal mechanism (5), a second foreign fiber removal mechanism (6) and a turning mechanism (8); The first foreign fiber removal mechanism (5) is arranged at the rear end of the cotton web outlet of the carding machine (1), and the first foreign fiber removal mechanism (5) includes a first frame (51) and a first traction conveyor belt (52) arranged on the first frame (51), a first foreign fiber detection component (54) and a first spray valve component (55), the first traction conveyor belt (52) is transmission-mounted on the first frame (51), and the first traction conveyor belt (52) has a transmission starting point and a transmission end point; The second foreign fiber removal mechanism (6) is arranged at the rear end of the cotton web outlet of the second carding machine (2), and the second foreign fiber removal mechanism (6) includes a second frame (61) and a second traction conveyor belt (62) arranged on the second frame (61), a second foreign fiber detection component (64) and a second spray valve component (65), the second traction conveyor belt (62) is installed on the second frame (61) and the second traction conveyor belt (62) has a transmission starting point and a transmission end point, and the second traction conveyor belt (62) and the first traction conveyor belt (52) transmit in opposite directions; When the first traction conveyor belt (52) and the second traction conveyor belt (62) are located at their respective transmission end points, the first traction conveyor belt (52) is located above the second traction conveyor belt (62) and the unloading ends of the two overlap in the vertical direction, and the turning mechanism (8) is used to receive the cotton web output from the unloading ends of the first traction conveyor belt (52) and the second traction conveyor belt (62) and guide and transmit the cotton web to the next process.

2. The cotton web foreign fiber removal device according to claim 1, characterized in that: A first feeding conveyor belt (3) is provided at the front end of the first foreign fiber removing mechanism (5), the feeding end of the first feeding conveyor belt (3) is located below the cotton web outlet of the carding machine (1), and the unloading end is located at the front end of the first traction conveyor belt (52); when the first traction conveyor belt (52) is located at its conveying starting point, the feeding end of the first traction conveyor belt (52) is located below the unloading end of the first feeding conveyor belt (3) and the projection of the unloading end of the first feeding conveyor belt (3) in the vertical direction falls on the feeding end of the first traction conveyor belt (52).

3. A cotton web foreign fiber removal device according to claim 1 or 2, characterized in that: The first foreign fiber detection component (54) includes a first camera module (541), a first light source module (542), an image processing module and a light source control module. The first camera module (541) is fixedly mounted on the first frame (51) and the shooting end of the first camera module (541) is arranged toward the gap between the first feeding conveyor belt (3) and the first traction conveyor belt (52); the first light source module (542) is adjustably rotatably mounted on the first frame (51), and the light source illumination range of the first light source module (542) is suitable for overlapping with the shooting range of the first camera module (541).

4. A cotton web foreign fiber removal device according to claim 1 or 2, characterized in that: A first impurity collection channel (56) with upper and lower openings and a through-hole is fixedly provided on the outer side of the feeding end of the first traction conveyor belt (52); the upper opening of the first impurity collection channel (56) is its feeding port, and the lower opening is its discharging port; The first spray valve assembly (55) comprises a first nozzle plate (551), an air pipe (552) and a solenoid valve (553); a plurality of nozzle holes (5511) are evenly arranged on the first nozzle plate (551) along the length direction of the first frame (51); the first nozzle plate (551) is fixed above the first traction conveyor belt (52), and the nozzle holes (5511) on the first nozzle plate (551) are arranged toward the feed port of the first impurity collection channel (56).

5. The cotton web foreign fiber removal device according to claim 4, characterized in that: The first frame (51) is provided with a first air pipe (57) and a first fan (59); the negative pressure inlet of the first fan (59) is connected to the discharge port of the first impurity collection channel (56) through the first air pipe (57), and the positive pressure discharge port is arranged downward.

6. The cotton web foreign fiber removal device according to claim 2, characterized in that: The speed at which the first feeding conveyor belt (3) conveys materials and the speed at which the first traction conveyor belt (52) conveys materials are both consistent with the speed at which the cotton web is output by the carding machine (1).

7. The cotton web foreign fiber removal device according to claim 2, characterized in that: A second feeding conveyor belt (4) is provided at the front end of the second foreign fiber removing mechanism (6), the feeding end of the second feeding conveyor belt (4) is located below the cotton web outlet of the second carding machine (2), and the unloading end is located at the front end of the second traction conveyor belt (62); When the second traction conveyor belt (62) is located at its conveying starting point, the loading end of the second traction conveyor belt (62) is located below the unloading end of the second loading conveyor belt (4) and the projection of the unloading end of the second loading conveyor belt (4) in the vertical direction falls on the loading end of the second traction conveyor belt (62).

8. The cotton web foreign fiber removal device according to claim 7, characterized in that: The speed at which the second feeding conveyor belt (4) conveys materials and the speed at which the second traction conveyor belt (62) conveys materials are both consistent with the speed at which the second carding machine (2) outputs the cotton web, and the speed at which the first carding machine (1) and the second carding machine (2) output the cotton web are consistent.

9. A cotton web foreign fiber removal device according to claim 1 or 8, characterized in that: A feeding conveyor belt (7) for conveying the cotton web to the next process is provided between the first carding machine (1) and the second carding machine (2), and the feeding conveyor belt (7) is located below the first traction conveyor belt (52) and the second traction conveyor belt (62), and the material conveying direction of the feeding conveyor belt (7) is perpendicular to the material conveying direction of the first traction conveyor belt (52); the turning mechanism (8) is located between the feeding conveyor belt (7) and the second traction conveyor belt (62), and the turning mechanism (8) includes a turning plate (81) and an inclination adjustment component (82), the cross-sectional area of the turning plate (81) gradually decreases from the side close to the second frame (61) toward the side close to the first frame (51), and gradually increases along the conveying direction of the feeding conveyor belt (7), and the turning plate (81) is adjusted to an inclination angle with respect to the horizontal plane by the inclination adjustment component (82).

10. A method for removing foreign fibers from a cotton web using the device according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: The first foreign fiber removing mechanism (5) is started to receive the cotton web outputted from the outlet of the first carding machine (1) via the first traction conveyor belt (52), and the cotton web is transmitted forward via the first traction conveyor belt (52); A first foreign fiber detection component (54) is used to detect foreign fibers on the cotton web on the first traction conveyor belt (52), and a first spray valve component (55) is used to knock out the foreign fibers detected by the first foreign fiber detection component (54); The second foreign fiber removing mechanism (6) is started to receive the cotton web outputted from the second carding machine (2) outlet via the second traction conveyor belt (62), and the cotton web is transmitted forward via the second traction conveyor belt (62); The cotton web on the second traction conveyor belt (62) is detected for foreign fibers by a second foreign fiber detection component (64), and the foreign fibers detected by the second foreign fiber detection component (64) are ejected by a second spray valve component (65); By controlling the movement of the first traction conveyor belt (52) and the second traction conveyor belt (62), the cotton web at the unloading end of the first traction conveyor belt (52) falls onto the cotton web of the second traction conveyor belt (62), forming a double-layer cotton web; The double-layer cotton web is guided to the next process by a turning mechanism (8).

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