Device for detecting proportion of raw cotton in fiber product
By designing a cotton fiber detection device to detect the cotton fiber ratio in real time, the problems of slow production progress and high cost in the existing technology are solved. It realizes non-destructive detection and stable control of the proportion of high-quality cotton, thereby reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XUZHOU QUALITY & TECH SUPERVISION COMPREHENSIVE INSPECTION & TESTING CENT
- Filing Date
- 2026-03-02
- Publication Date
- 2026-06-05
AI Technical Summary
The existing cotton wadding production system cannot detect the cotton fiber ratio in real time, which requires destructive testing after production. This results in production delays, increased costs and excessive labor input. Furthermore, relying on experience to mix cotton can easily lead to unstable finished product quality.
A device for detecting the proportion of raw cotton in fiber products for wadding was designed. The device conveys cotton fibers through a conveying component and flattens them out by a detection component. The device uses a camera to capture images and uses an image analysis system to determine whether the proportion of high-quality cotton is qualified, thus achieving non-destructive testing.
It enables real-time monitoring of cotton fiber ratio, avoiding damage and waste of finished products, ensuring that the proportion of high-quality cotton meets standards during the production process, and reducing production costs.
Smart Images
Figure CN122150119A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a device for detecting the proportion of raw cotton in cotton fiber products. It belongs to the field of cotton wadding production technology and specifically relates to a device for detecting the proportion of raw cotton in cotton fiber products by conveying cotton fibers through a conveying component, flattening the cotton fibers through a detection component, and acquiring images to determine whether the proportion of high-quality cotton is qualified. Background Technology
[0002] Cotton wadding products are typically produced using a blend of raw cotton from multiple sources and grades. High-quality cotton generally refers to raw cotton with superior overall performance in terms of fiber length, fineness, maturity, strength, and cleanliness, consistently providing a fluffy, resilient, and comfortable feel. When the proportion of high-quality cotton is insufficient, the fluffiness, resilience, and anti-caking ability of the wadding will significantly decrease. During use, it is more prone to problems such as difficulty in recovering after compression, localized hardening, uneven thickness, and increased lint shedding, thus reducing the warmth and comfort of the finished product. Conversely, an excessively high proportion of high-quality cotton will significantly increase costs and, under certain mismatched process conditions, may lead to changes in the web cohesion and inconsistent layer compaction. Therefore, in the cotton wadding production system, it is necessary to test whether the proportion of high-quality cotton in the wadding is up to standard. This is to avoid deviations caused by relying solely on experience in cotton blending or estimating the proportion based on the weight of raw materials. Existing methods for testing cotton fiber ratios usually rely on sending the wadding to an authoritative testing institution for destructive testing after production. This approach has significant time lag. If the test results are unsatisfactory, the entire batch of wadding needs to be disassembled and reproduced, which not only seriously hinders the production progress but also increases additional costs and labor input. If a high proportion of high-quality cotton is used in the wadding, the production cost will increase accordingly, greatly compressing profit margins and creating an economic burden for enterprises.
[0003] Publication No. CN110158202A discloses a cotton wadding production system, which includes a cotton grabber, a cotton mixing and opening machine, a cotton opening machine, a cotton condenser, a cotton collecting box, a carding machine, and a web laying machine. A conveyor curtain is provided on the lower side of the web laying machine. The production system also includes a wire guiding mechanism, which includes: a wire spool wound with an additive wire; a wire exit roller assembly connected to the web laying trolley of the web laying machine, including two wire guide wheels disposed on one side of the web laying trolley along its traveling direction, the two wire guide wheels clamping the additive wire; and a driving component that drives the wire guide wheels to rotate. The cotton wadding production line lacks a station designed to directly test the raw cotton blend ratio. The testing of the cotton fiber ratio relies on sending the wadding to an authoritative testing institution for destructive testing after production. This method has significant time lag. If the test results are unqualified, the entire batch of wadding needs to be disassembled and reproduced, which not only seriously hinders the production progress but also increases additional costs and labor input. If the wadding uses a higher proportion of high-quality cotton, the production cost will increase accordingly, greatly compressing profit margins and creating an economic burden for the company. Summary of the Invention
[0004] To improve the above situation, the present invention provides a cotton fiber ratio detection device for cotton fiber products, which uses a conveying component to convey cotton fibers, a detection component to flatten the cotton fibers, and an image acquisition device to determine whether the high-quality cotton ratio is qualified.
[0005] The cotton blending ratio detection device for wadding fiber products of the present invention is implemented as follows: The cotton blending ratio detection device for wadding fiber products of the present invention consists of a conveying component and a detection component. The conveying assembly consists of a connecting frame, support rods, support frame, driving conveyor wheel, driven conveyor wheel, and conveyor belt. The connecting frame consists of a square frame and four uprights, with each upright corresponding to one of the four corners of the bottom surface of the square frame. The bottom end of the support rod is fixedly placed on the top surface of the connecting frame, and the support rod corresponds one-to-one with the four corners of the connecting frame. The support rods are divided into two groups, with two support rods in each group. The two support rods in each group are placed adjacent to each other, and the two groups of support rods have different heights. A support frame is fixedly placed on the top surface of the support rod. The support frame has a square frame structure and is placed at an angle. One end of the active conveyor wheel passes through the inner side of the support frame and is rotatably connected to the support frame. The other end of the active conveyor wheel passes through the support frame and is fixedly connected to the motor shaft of the conveyor motor, with a support bearing placed between the active conveyor wheel and the support frame. The driven conveyor wheels are rotatably connected to the support frame at both ends, and multiple driven conveyor wheels are provided. The active conveyor wheel and multiple driven conveyor wheels are arranged at equal intervals along the length of the support frame. The active conveyor wheel is connected to multiple driven conveyor wheels via a conveyor belt. The detection assembly consists of a fixed plate, slide rail, moving motor, sliding rod, connecting block, telescopic rod, connecting shaft, first rotating ring, second rotating ring, second rotating plate, first rotating plate, support spring, camera, and rubber strip. The fixing plate is fixedly placed on the outer side of the support frame. The fixing plates are provided in two sets, with each set of fixing plates positioned at both ends of the side of the support frame along its length. The two sets of fixing plates are symmetrically placed about the support frame. The support frame has a slide rail on its side along its length. One end of the threaded rod is rotatably connected to a fixed plate within the same group, and the other end of the threaded rod passes through another fixed plate within the same group and is fixedly connected to the motor shaft of the moving motor, with a supporting bearing placed between the threaded rod and the fixed plate. The sliding rod has a U-shaped structure and consists of a horizontal plate and two vertical plates. The inner surfaces of both ends of the sliding rod are slidably connected to the support frame via slide rails. Both ends of the sliding rod are threadedly connected to threaded rods. The connecting block is fixedly positioned at the center of the bottom surface of the sliding rod cross plate. One end of the telescopic rod is fixed to the bottom surface of the connecting block. The connecting shaft is fixedly placed at the other end of the telescopic rod, and the telescopic rod is fixedly connected to the middle of the side of the connecting shaft. Preferably, the cross-sectional diameter of the connecting shaft from one end to one-third of its length is the same as the cross-sectional diameter from two-thirds of its length to the other end, and the cross-sectional diameter from one-third to two-thirds of its length is larger than the cross-sectional diameter of the connecting shaft from one end. Two first rotating rings are rotatably connected to the connecting shaft, and each first rotating ring is rotatably connected to one of the two ends of the connecting shaft. The first rotating ring consists of a cylinder and a horizontal plate. The horizontal plate is fixedly connected to the outer side of the cylinder, and the length direction of the horizontal plate is the same as the central axis direction of the cylinder. The second rotating ring is rotatably connected to the connecting shaft. There are two second rotating rings, with the second rotating ring positioned between the two first rotating rings. The second rotating ring consists of a cylinder and a horizontal plate. The horizontal plate is fixedly connected to the outer side of the cylinder, and the length direction of the horizontal plate is the same as the central axis direction of the cylinder. The second rotating plate has a U-shaped structure, and its two ends are fixedly connected to the two first rotating ring horizontal plates, respectively. The first rotating plate has a U-shaped structure, and its two ends are fixedly connected to two second rotating ring horizontal plates, respectively. The second rotating plate and the first rotating plate form a certain angle around the central axis of the connecting shaft. One end of the support spring is fixedly connected to the side of the second rotating plate, and the other end of the support spring is fixedly connected to the side of the first rotating plate. Multiple support springs are provided, and these multiple support springs are arranged at equal intervals along the connecting shaft axis. The camera is fixedly mounted on the outer surface of the middle part of the connecting shaft, and is located at the bottom of the connecting shaft. A distance sensor is located at the bottom of the larger diameter section of the connecting shaft, next to the camera. Two rubber strips are provided; one rubber strip is positioned at the bottom of the second rotating plate, and the other rubber strip is positioned at the bottom of the first rotating plate. The cotton blending ratio detection device for fiber products of the present invention further includes an image analysis system, which comprises a control module, a signal converter, and a data processor. The signal converter is positioned on the sliding rod, and the data processor is positioned on the sliding rod. The camera is connected to the signal converter via a data cable, and the distance sensor is also connected to the signal converter via a data cable. The mobile motor and the telescopic rod are respectively connected to the control module via data transmission lines. The signal converter is connected to the data processor via a data transmission line, and the data processor is connected to the control module via a data transmission line. The signal converter can convert the electrical signals of image data acquired by the camera into digital signals, and the signal transformer can convert the electrical signals of data acquired by the distance sensor into digital signals. The data processor and the signal converter exchange information. When the image analysis system is executed, it mainly performs the following steps: First, the control module starts the conveyor motor to drive the active conveyor wheel to rotate, thereby causing the conveyor belt to convey cotton fibers. This drives the telescopic rod to move the connecting shaft downwards. Simultaneously, the distance sensor can detect the distance of the conveyor belt in real time. When the distance reaches the first preset value, the control module briefly pauses the conveyor motor. Before the rubber strip contacts the cotton fibers, the support spring provides support for the second and first rotating plates, creating a certain angle between them. After the rubber strip contacts the cotton fibers, the telescopic rod continuously presses down on the connecting shaft, increasing the angle between the second and first rotating plates. This allows the rubber strip to flatten the cotton fibers between the second and first rotating plates. When the distance sensor reaches the second preset value from the conveyor belt, the telescopic rod stops moving. The control module then captures a high-definition color image of the cotton fibers through a camera. The telescopic rod then rises. When the distance sensor reaches the second preset value from the conveyor belt, the control module starts the conveyor motor to drive the active conveyor to rotate, thus continuously conveying the cotton fibers. The image captured by the camera is transmitted to the image analysis system, which performs pre-processing on the image. The processing includes noise reduction and color correction to eliminate noise and color deviations that may occur during image acquisition. Color information is extracted from the processed image, and the image is converted from the RGB color space to a color space more suitable for color analysis. Color quantization is performed on the image to reduce the number of colors. Color detection is performed on each pixel in the image to determine whether it belongs to the color range of high-quality cotton or low-quality cotton. Threshold segmentation, clustering algorithms, or deep learning models are used to calculate the proportion of high-quality cotton in the image and the data is sent back to the control module. If the proportion of high-quality cotton is within the preset range, the process continues. If the proportion of high-quality cotton is less than the minimum value of the preset range, the control module will issue an alarm to notify the production line to update the ratio of high-quality cotton to low-quality cotton in time and reprocess the unqualified parts. If the proportion of high-quality cotton is greater than the maximum value of the preset range, the control module will issue a reminder, and the production line can appropriately reduce the proportion of high-quality cotton to reduce costs. This completes the cotton fiber ratio detection process. Then, the control module starts the moving motor, which drives the threaded rod to rotate and moves the sliding rod, so that different positions on the conveyor belt can be detected to avoid the influence of different lighting on the data. Furthermore, a supplementary light is provided on the inner surface of the second rotating plate where it forms an acute angle with the supporting spring. Multiple supplementary lights are provided and evenly distributed on the inner surface of the second rotating plate and the supporting spring. Furthermore, a shock-absorbing plate is fitted at the bottom of the connecting frame support column. The shock-absorbing plate has a cuboid structure and an open top, and is made of rubber. Beneficial effects
[0006] First, it can monitor changes in the cotton fiber ratio in real time, adjust production parameters in a timely manner, and ensure that the proportion of high-quality cotton meets the standard requirements during the production process.
[0007] Second, the use of non-destructive testing methods allows for testing without damaging the cotton wadding, thus avoiding damage and waste to the finished product. Attached Figure Description
[0008] Figure 1 This is a three-dimensional structural diagram of the raw cotton ratio detection device for fiber products for wadding according to the present invention; Figure 2 This is a three-dimensional structural diagram of the cotton ratio detection device for fiber products for wadding according to the present invention, which only shows the structure of the detection component. Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the raw cotton ratio detection device for fiber products of the present invention; Figure 4 This is a three-dimensional structural diagram of Example 3 of the cotton blending ratio detection device for fiber products of the present invention. Attached Figure
[0009] The components are: connecting frame (1), support rod (2), support frame (3), conveyor belt (4), driven conveyor wheel (5), sliding rod (6), first rotating ring (7), telescopic rod (8), connecting shaft (9), fixed plate (10), moving motor (11), active conveyor wheel (12), threaded rod (13), slide rail (14), second rotating plate (15), second rotating ring (16), connecting block (17), camera (18), first rotating plate (19), support spring (20), rubber strip (21), supplementary light (22), and shock absorber (23). Detailed Implementation Example 1
[0010] The present invention discloses a device for detecting the raw cotton ratio in fiber products for wadding, which is implemented as follows: The device comprises a conveying component and a detection component. The conveying assembly consists of a connecting frame (1), a support rod (2), a support frame (3), an active conveyor wheel (12), a driven conveyor wheel (5), and a conveyor belt (4). The connecting frame (1) consists of a square frame and four columns. The columns of the connecting frame (1) correspond one-to-one with the four corners of the bottom surface of the square frame. The bottom end of the support rod (2) is fixed on the top surface of the connecting frame (1), and the support rod (2) corresponds one-to-one with the four corners of the connecting frame (1). The support rods (2) are divided into two groups, with two support rods (2) in each group. The two support rods (2) in each group are placed adjacent to each other, and the two groups of support rods (2) have different heights. The support frame (3) is fixedly placed on the top surface of the support rod (2). The support frame (3) has a square frame structure and is placed at an angle. One end of the active conveyor wheel (12) passes through the inner side of the support frame (3) and is rotatably connected to the support frame (3). The other end of the active conveyor wheel (12) passes through the support frame (3) and is fixedly connected to the motor shaft of the conveyor motor. A support bearing is placed between the active conveyor wheel (12) and the support frame (3). The driven transmission wheel (5) is rotatably connected to the support frame (3) at both ends. Multiple driven transmission wheels (5) are provided. The active conveyor wheel (12) and multiple driven conveyor wheels (5) are arranged at equal intervals along the length of the support frame (3). The active conveyor wheel (12) and multiple driven conveyor wheels (5) are connected by a conveyor belt (4). The detection assembly consists of a fixed plate (10), a slide rail (14), a moving motor (11), a sliding rod (6), a connecting block (17), a telescopic rod (8), a connecting shaft (9), a first rotating ring (7), a second rotating ring (16), a second rotating plate (15), a first rotating plate (19), a support spring (20), a camera (18), and a rubber strip (21). The fixing plate (10) is fixedly placed on the outer side of the support frame (3). The fixing plates (10) are provided in two sets. In each set, the fixing plates (10) are placed at both ends of the side of the support frame (3) along its length. The two sets of fixing plates (10) are placed symmetrically about the support frame (3). The support frame (3) has a slide rail (14) on its side along its length. One end of the threaded rod (13) is rotatably connected to a fixed plate (10) within the group, and the other end of the threaded rod (13) passes through another fixed plate (10) within the group and is fixedly connected to the motor shaft of the moving motor (11), and a supporting bearing is placed between the threaded rod (13) and the fixed plate (10). The sliding rod (6) has a U-shaped structure and consists of a horizontal plate and two vertical plates. The inner sides of both ends of the sliding rod (6) are slidably connected to the support frame (3) through the slide rail (14). Both ends of the sliding rod (6) are threadedly connected to the threaded rod (13). The connecting block (17) is fixedly placed at the middle position of the bottom surface of the sliding rod (6) cross plate. One end of the telescopic rod (8) is fixed on the bottom surface of the connecting block (17). The connecting shaft (9) is fixedly placed at the other end of the telescopic rod (8), and the telescopic rod (8) is fixedly connected to the middle part of the side of the connecting shaft (9). Preferably, the diameter of the cross-section of the connecting shaft (9) from one end to one-third of the distance is the same as the diameter of the cross-section from two-thirds of the distance to the other end, and the diameter of the cross-section of the connecting shaft (9) from one-third to two-thirds of the distance is larger than the diameter of the cross-section of one end of the connecting shaft (9). The first rotating ring (7) is rotatably connected to the connecting shaft (9). There are two first rotating rings (7), which are rotatably connected to the two ends of the connecting shaft (9) respectively. The first rotating ring (7) consists of a cylinder and a horizontal plate. The horizontal plate is fixedly connected to the outer side of the cylinder, and the length direction of the horizontal plate is the same as the direction of the central axis of the cylinder. The second rotating ring (16) is rotatably connected to the connecting shaft (9). There are two second rotating rings (16), and the second rotating ring (16) is placed between the two first rotating rings (7). The second rotating ring (16) consists of a cylinder and a horizontal plate. The horizontal plate is fixedly connected to the outer side of the cylinder, and the length direction of the horizontal plate is the same as the direction of the central axis of the cylinder. The second rotating plate (15) has a U-shaped structure, and its two ends are fixedly connected to the two first rotating rings (7) horizontal plates respectively. The first rotating plate (19) has a U-shaped structure, and its two ends are fixedly connected to the two second rotating rings (16) horizontal plates, respectively. The second rotating plate (15) and the first rotating plate (19) form a certain angle around the central axis of the connecting shaft (9). One end of the support spring (20) is fixedly connected to the side of the second rotating plate (15), and the other end of the support spring (20) is fixedly connected to the side of the first rotating plate (19). Multiple support springs (20) are provided, and these multiple support springs (20) are arranged equidistantly along the axial direction of the connecting shaft (9). The camera (18) is fixedly placed on the outer surface of the middle part of the connecting shaft (9) and at the bottom of the connecting shaft (9). A distance sensor is located at the bottom of the larger diameter part of the connecting shaft (9) and next to the camera (18). Two rubber strips (21) are provided, one of which is secured to the bottom of the second rotating plate (15), and the other is secured to the bottom of the first rotating plate (19). The present invention provides a device for detecting the raw cotton ratio in fiber products for wadding, which further includes an image analysis system. The image analysis system comprises a control module, a signal converter, and a data processor. The signal converter is placed on the sliding rod (6), and the data processor is placed on the sliding rod (6). The camera (18) is connected to the signal converter via a data cable, and the distance sensor is connected to the signal converter via a data cable. The mobile motor (11) and the telescopic rod (8) are respectively connected to the control module via data transmission lines. The signal converter is connected to the data processor via a data transmission line, and the data processor is connected to the control module via a data transmission line. The signal converter can convert the electrical signals of the image data acquired by the camera (18) into digital signals, and the signal transformer can convert the electrical signals of the data acquired by the distance sensor into digital signals. The data processor and the signal converter exchange information. When the image analysis system is executed, it mainly performs the following steps: First, the control module starts the conveyor motor to drive the active conveyor wheel (12) to rotate, so that the conveyor belt (4) conveys the cotton fibers, drives the telescopic rod (8) to drive the connecting shaft (9) to move down, and at the same time, the distance sensor can detect the distance of the conveyor belt (4) in real time. When the distance reaches the first preset value, the control module makes the conveyor motor pause briefly, so that the conveyor belt (4) stops. When the rubber strip (21) is not in contact with the cotton fibers, the support spring (20) provides support for the second rotating plate (15) and the first rotating plate (19), so that a certain angle is formed between the two. When the rubber strip (21) After contacting the cotton fibers, the telescopic rod (8) continuously presses down on the connecting shaft (9), which increases the angle between the second rotating plate (15) and the first rotating plate (19), thereby flattening the cotton fibers between the second rotating plate (15) and the first rotating plate (19) through the rubber strip (21). When the distance sensor reaches the second preset value from the conveyor belt (4), the telescopic rod (8) stops moving. The control module collects a high-definition color image of the cotton fibers through the camera (18), and then raises the telescopic rod (8). When the distance sensor reaches the second preset value from the conveyor belt (4) again, the control module starts the production motor to drive the active conveyor wheel (12) to rotate, thereby making the cotton fibers... The fiber is continuously conveyed, and the images captured by the camera are transmitted to an image analysis system. This system preprocesses the images, including denoising and color correction, to eliminate noise and color deviations that may have occurred during image acquisition. Color information is extracted from the processed images, converting them from the RGB color space to a more suitable color space for analysis. Color quantization is performed to reduce the number of colors. Color detection is performed on each pixel in the image to determine whether it belongs to the color range of high-quality or low-quality cotton. Threshold segmentation, clustering algorithms, or deep learning models can be used to calculate the proportion of high-quality cotton in the image, and the data is sent back to the control module. If the proportion of high-quality cotton is within the preset range, the module will continue to work. If the proportion of high-quality cotton is less than the minimum value of the preset range, the control module will issue an alarm and update the ratio of high-quality cotton to inferior cotton in a timely manner. The unqualified parts will be divided and reprocessed. If the proportion of high-quality cotton is greater than the maximum value of the preset range, the control module will issue a reminder and appropriately reduce the proportion of high-quality cotton to reduce costs. This completes the detection process of cotton fiber ratio. Then the control module starts the moving motor (11), drives the threaded rod (13) to rotate, and drives the sliding rod (6) to move, so that different positions of the conveyor belt (4) can be detected to avoid the influence of different light on the data. Example 2
[0011] The difference between this embodiment and embodiment 1 is that: a supplementary light (22) is placed on the inner side of the second rotating plate (15) and the support spring (20) forming an acute angle. There are multiple supplementary lights (22) and they are evenly distributed on the inner side of the second rotating plate (15) and the support spring (20). When in use, the sufficient light provided by the supplementary light (22) can ensure that the cotton fiber image obtained by the camera (18) is clearer, reduce image noise and blur caused by insufficient light, avoid color difference caused by light, and thus improve the accuracy of color detection. Example 3
[0012] The difference between this embodiment and embodiment 1 is that: the bottom end of the support column of the connecting frame (1) is fitted with a shock-absorbing plate (23). The shock-absorbing plate (23) has a cuboid structure and an open top structure. The shock-absorbing plate (23) is a rubber structure. When in use, the shock-absorbing plate (23) plays a role in shock absorption for the entire device, ensuring that the camera (18) obtains a clearer image of cotton fibers and avoiding image blurring caused by overall vibration, thereby improving the accuracy of color detection. The connecting frame (1) consists of a square frame and four columns. The columns of the connecting frame (1) are designed to correspond one-to-one with the four corners of the bottom surface of the square frame. The structure is stable and can withstand a large weight and pressure. The design of the active conveyor wheel (12) and multiple driven conveyor wheels (5) being equidistantly arranged along the length of the support frame (3) enables continuous conveying of cotton fiber products. The sliding rod (6) has a U-shaped structure. The sliding rod (6) consists of a horizontal plate and two vertical plates. The inner sides of both ends of the sliding rod (6) are slidably connected to the support frame (3) through the slide rail (14). The design of the sliding rod (6) being threaded to the threaded rod (13) at both ends can drive the detection component to move synchronously with the cotton fiber, thereby realizing the image acquisition of cotton fiber products. One end of the support spring (20) is fixedly connected to the side of the second rotating plate (15), and the other end of the support spring (20) is fixedly connected to the side of the first rotating plate (19). There are multiple support springs (20). The design of multiple support springs (20) being equidistantly arranged along the axial direction of the connecting shaft (9) can provide support for the first rotating plate (19) and the second rotating plate (15), so that the two always form an angle, thereby automatically increasing the angle during the downward pressing process. The design of a distance sensor at the bottom of the larger diameter of the connecting shaft (9) and next to the camera (18) can monitor the distance from the first and second rotating plates to the conveyor belt in real time, providing a fixed time for the conveyor belt to stop operating, and avoiding cotton fiber breakage due to vibration or excessive angle between the first rotating plate (19) and the second rotating plate (15). The design of having two rubber strips (21), one rubber strip (21) being placed at the bottom of the second rotating plate (15) and the other rubber strip (21) being placed at the bottom of the first rotating plate (19), can increase the friction between the rubber strip and the cotton fiber, thereby flattening the cotton fiber and preventing the uneven surface of the cotton fiber from causing changes in light intensity that could lead to deviations in the image analysis results. At the same time, it can also prevent damage to the cotton fiber. The goal is to enable the conveying of cotton fibers through the conveying component, the flattening of the cotton fibers through the detection component, and the acquisition of images to determine whether the proportion of high-quality cotton is up to standard.
[0013] It should be noted that, unless otherwise explicitly specified and limited, the terms "placed," "connected," and "linked" should be interpreted broadly. For example, they can refer to fixed connections such as folded edges, rivets, pins, adhesives, and welds; detachable connections such as threaded connections, snap-fit connections, and hinges; integral connections; electrical connections; direct connections; or indirect connections via an intermediate medium; or internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.
[0014] It should be further noted that, in order to keep the description simple and clear, the above specific embodiments only describe the differences between them and other embodiments. However, those skilled in the art should know that the above specific embodiments are also independent technical solutions.
Claims
1. A device for detecting the proportion of raw cotton in wadding fiber products, characterized in that: Composed of a conveying assembly and a detection assembly, the conveying assembly consists of a connecting frame, a support rod, a support frame, an active conveying wheel, a driven conveying wheel, and a conveyor belt. The detection assembly consists of a fixed plate, a slide rail, a moving motor, a sliding rod, a connecting block, a telescopic rod, a connecting shaft, a first rotating ring, a second rotating ring, a second rotating plate, a first rotating plate, a support spring, a camera, and a rubber strip. The fixed plate is fixedly placed on the outer surface of the support frame. The support frame has a slide rail on its side along its length. One end of the threaded rod is rotatably connected to one of the fixed plates in the same group, and the other end of the threaded rod passes through another fixed plate in the same group and is fixedly connected to the motor shaft of the moving motor. The sliding rod consists of a horizontal plate and two vertical plates. The inner surfaces of both ends of the sliding rod are slidably connected to the support frame through the slide rail. Both ends of the sliding rod are threadedly connected to the threaded rod. The connecting block is fixedly placed on the outer surface of the support frame. At the center of the bottom surface of the sliding rod horizontal plate, one end of the telescopic rod is fixedly placed on the bottom surface of the connecting block, and the connecting shaft is fixedly placed on the other end of the telescopic rod. The first rotating ring is rotatably connected to the connecting shaft. There are two first rotating rings, which are rotatably connected to the two ends of the connecting shaft respectively. The second rotating ring is rotatably connected to the connecting shaft. The two ends of the second rotating plate are fixedly connected to the two first rotating ring horizontal plates respectively. The two ends of the first rotating plate are fixedly connected to the two second rotating ring horizontal plates respectively. One end of the support spring is fixedly connected to the side of the second rotating plate, and the other end of the support spring is fixedly connected to the side of the first rotating plate. The camera is fixedly placed on the outer surface of the middle part of the connecting shaft and at the bottom of the connecting shaft. A distance sensor is placed next to the camera at the bottom of the larger diameter part of the connecting shaft. The cotton ratio detection device for wadding fiber products also includes an image analysis system.
2. The cotton blending ratio detection device for fiber products for wadding according to claim 1, characterized in that... The image analysis system includes a control module, a signal converter, and a data processor. The signal converter and the data processor are both mounted on the sliding rod. The camera and the distance sensor are connected to the signal converter via a data cable. The moving motor and the telescopic rod are connected to the control module via data transmission lines. The signal converter and the data processor are also connected to the control module via data transmission lines. The signal converter converts the electrical signals of the image data acquired by the camera into digital signals, and the signal converter converts the electrical signals of the data acquired by the distance sensor into digital signals. The data processor and signal converter interact to convert the data into digital signals. When the image analysis system is executed, it mainly implements the following steps: First, the control module starts the conveyor motor to drive the active conveyor wheel to rotate, thereby causing the conveyor belt to convey the cotton fibers. The drive telescopic rod drives the connecting shaft to move downward. At the same time, the distance sensor can detect the distance of the conveyor belt in real time. When the distance reaches the first preset value, the control module causes the conveyor motor to pause briefly. When the rubber strip is not in contact with the cotton fibers, the support spring provides support for the second rotating plate and the first rotating plate, thereby forming a certain angle between them. When the rubber strip comes into contact with the cotton fibers, the telescopic rod continues to press down on the connecting shaft, which can increase the angle between the second rotating plate and the first rotating plate, thereby enabling the conveyor to move downward. The rubber strip flattens the cotton fibers between the second and first rotating plates. When the distance sensor reaches the second preset value from the conveyor belt, the telescopic rod stops moving. The control module captures a high-definition color image of the cotton fibers via a camera, then raises the telescopic rod. When the distance sensor reaches the second preset value from the conveyor belt, the control module starts the conveyor motor, driving the active conveyor to rotate, thus continuously conveying the cotton fibers. The image captured by the camera is transmitted to the image analysis system. The image analysis system preprocesses the image, including noise reduction and color correction, to eliminate noise and color deviations that may occur during image acquisition. It extracts color information from the processed image and converts the image from the RGB color space to a more suitable color space. The color analysis uses a color space to quantize colors in the image to reduce the number of colors. It performs color detection on each pixel in the image, determining whether it belongs to the color range of high-quality or low-quality cotton. Thresholding segmentation, clustering algorithms, or deep learning models are used to calculate the proportion of high-quality cotton in the image, and the data is sent back to the control module. If the proportion of high-quality cotton is within a preset range, the process continues. If the proportion of high-quality cotton is less than the minimum value of the preset range, the control module issues an alarm, notifying the production line to update the ratio of high-quality to low-quality cotton and reprocess any substandard portions. If the proportion of high-quality cotton is greater than the maximum value of the preset range, the control module issues a reminder, allowing the production line to appropriately reduce the proportion of high-quality cotton, thereby reducing costs.This completes the cotton fiber ratio detection process. The control module then activates the moving motor, which rotates the threaded rod and moves the sliding rod, allowing for detection at different positions on the conveyor belt and preventing the influence of varying lighting conditions on the data.
3. The cotton blending ratio detection device for wadding fiber products according to claim 1, characterized in that... A supplementary light is provided on the inner side of the second rotating plate forming an acute angle with the supporting spring. Multiple supplementary lights are provided and are evenly distributed on the inner side of the second rotating plate and the supporting spring.
4. The cotton blending ratio detection device for fiber products for wadding according to claim 1, characterized in that... The bottom end of the connecting frame support is fitted with a shock-absorbing plate. The shock-absorbing plate has a cuboid structure and an open top. The shock-absorbing plate is made of rubber.
5. The cotton blending ratio detection device for fiber products for wadding according to claim 1, characterized in that... The connecting frame consists of a square frame and four columns. The columns of the connecting frame correspond one-to-one with the four corners of the bottom surface of the square frame. The bottom end of the support rod is fixedly placed on the top surface of the connecting frame, and the support frame is fixedly placed on the top surface of the support rod. One end of the active conveying wheel passes through the inner side of the support frame and is rotatably connected to the support frame. The other end of the active conveying wheel passes through the support frame and is fixedly connected to the motor shaft of the conveyor motor. A support bearing is placed between the active conveying wheel and the support frame. Both ends of the driven conveying wheels are rotatably connected to the support frame. The active conveying wheel and multiple driven conveying wheels are connected by a conveyor belt.
6. The cotton blending ratio detection device for wadding fiber products according to claim 5, characterized in that... The support frame has a square frame structure and is placed at an angle. There are multiple driven conveyor wheels. The driving conveyor wheel and multiple driven conveyor wheels are arranged at equal intervals along the length of the support frame. The support rods correspond one-to-one with the four corners of the connecting frame. The support rods are divided into two groups, with two support rods in each group. The two support rods in each group are placed adjacent to each other, and the two groups of support rods have different heights.
7. The cotton blending ratio detection device for fiber products for wadding according to claim 1, characterized in that... The fixing plate is provided in two sets. In each set, the fixing plate is placed at both ends of the side of the support frame along the length direction. The two sets of fixing plates are placed symmetrically about the support frame. There are two rubber strips. One rubber strip is placed at the bottom of the second rotating plate, and the other rubber strip is placed at the bottom of the first rotating plate.
8. The cotton blending ratio detection device for fiber products for wadding according to claim 1, characterized in that... The sliding rod has a U-shaped structure. The diameter of the cross-section of the connecting shaft from one end to one-third is the same as the diameter of the cross-section from two-thirds to the other end. The diameter of the cross-section of the connecting shaft from one-third to two-thirds is larger than the diameter of the cross-section of the connecting shaft at one end.
9. The cotton blending ratio detection device for wadding fiber products according to claim 1, characterized in that... The second rotating plate has a U-shaped structure, the first rotating plate has a U-shaped structure, and the second rotating plate and the first rotating plate form a certain angle around the central axis of the connecting shaft. Multiple support springs are provided, and the multiple support springs are arranged at equal intervals along the axial direction of the connecting shaft.
10. The cotton blending ratio detection device for wadding fiber products according to claim 1, characterized in that... A supporting bearing is placed between the threaded rod and the fixed plate. The telescopic rod is fixedly connected to the middle of the side of the connecting shaft. The first rotating ring is composed of a cylinder and a horizontal plate. The horizontal plate is fixedly connected to the outer side of the cylinder. The length direction of the horizontal plate is the same as the direction of the central axis of the cylinder. There are two second rotating rings. The second rotating ring is placed between the two first rotating rings. The second rotating ring is composed of a cylinder and a horizontal plate. The horizontal plate is fixedly connected to the outer side of the cylinder, and the length direction of the horizontal plate is the same as the direction of the central axis of the cylinder.