Device for detecting short fiber content of cotton fiber product

Abstract

The application discloses a short-fleece rate detection device for a cotton fiber product, which comprises a conveying assembly, a positioning assembly and a detection assembly.The conveying assembly comprises a connecting frame, a supporting rod, a supporting frame, a driving conveying wheel, a driven conveying wheel and a conveying belt.The connecting frame comprises a square frame and four vertical columns.The vertical columns of the connecting frame correspond to the four corners of the bottom surface of the square frame one by one.The bottom end of the supporting rod is fixed on the top surface of the connecting frame.The supporting rod corresponds to the four corners of the connecting frame one by one.The supporting rod is divided into two groups, and each group is provided with two supporting rods.The two supporting rods in each group are placed adjacently, and the heights of the two groups of supporting rods are different.

Description

Technical Field

[0001] This invention relates to a device for detecting the short fiber content of cotton fibers in wadding fiber products. It is a device capable of detecting the ratio of high-quality cotton to low-quality cotton fibers, belonging to the field of cotton wadding production technology. In particular, it relates to a device for detecting the short fiber content of cotton fibers in wadding fiber products by conveying cotton fibers through a conveying component, flattening cotton fibers inside two light-shielding plates through a positioning component, and calculating the short fiber content of cotton fibers through a detection component. Background Technology

[0002] In the production of wadding fiber products, the quality of cotton fibers is a crucial factor determining the product's comfort, warmth, and durability. Among these factors, the short fiber percentage (the proportion of fibers shorter than a certain length threshold in a unit sample) is a key indicator of cotton fiber quality. A high short fiber percentage usually indicates uneven fiber length distribution and an increased content of impurities or inferior fibers, directly affecting the filling performance and fluffiness of wadding products. In severe cases, it can even lead to lint shedding, deformation, or even product failure. Therefore, real-time and accurate detection of the cotton fiber short fiber percentage is of significant technological value and quality control importance in the production of fiber products such as cotton wadding and wadding sheets. Currently, the industry commonly uses... Post-production destructive testing methods involve sending pre-formed cotton wadding samples to authoritative testing institutions to determine the short fiber ratio through sampling, weighing, chemical treatment, mechanical combing, or image analysis. However, this method typically involves testing after product production. If the short fiber ratio is found to be substandard, the entire batch of cotton wadding must be disassembled, reproduced, or downgraded for use. This results in significant delays, severely impacting production efficiency and resource utilization. Furthermore, the testing process is usually irreversible, damaging the samples and rendering them unusable, leading to raw material waste. Additionally, the time from submission to obtaining the report often ranges from several hours to several days, relies on manual processing, has a low testing frequency, and is slow to respond, making it impossible to support real-time production adjustments.

[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 under 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 guide wheels disposed on one side of the web laying trolley along its traveling direction, the two guide wheels clamping the additive wire; and a driving component that drives the guide wheels to rotate. The cotton wadding production system uses a post-construction destructive testing method to detect the short fiber content of the cotton wadding. The process involves sending pre-formed cotton wadding samples to an authoritative testing institution to determine the short fiber ratio through sampling, weighing, chemical treatment, mechanical combing, or image analysis. However, this method typically involves testing after product production. If the short fiber ratio is found to be substandard, the entire batch of cotton wadding must be disassembled, reproduced, or downgraded for use. This process is highly time-consuming and severely impacts production efficiency and resource utilization. Furthermore, the testing process is usually irreversible, which can damage the samples, rendering them unusable and wasting raw materials. Additionally, the time from submission to obtaining the report often takes several hours to several days and relies on manual processing. This results in low testing frequency, untimely response, and an inability to support real-time production adjustments. Summary of the Invention

[0004] To improve the above situation, the present invention provides a cotton fiber short fiber rate detection device for wadding fiber products, which provides a cotton fiber short fiber rate detection device by conveying cotton fibers through a conveying component, flattening cotton fibers inside two light-shielding plates through a positioning component, and calculating cotton fiber short fiber rate through a detection component.

[0005] The cotton fiber short fiber content detection device for wadding fiber products of the present invention is implemented as follows: The cotton fiber short fiber content detection device for wadding fiber products of the present invention consists of a conveying component, a positioning 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 positioning assembly consists of positioning holes, a moving frame, fixing screws, a support plate, a leveling motor, a rotating roller, a light-shielding plate, a pressure plate, and a first telescopic rod. The support frame has multiple positioning holes evenly distributed on both sides along its length. The movable frame has a U-shaped structure and consists of a horizontal plate and two vertical plates. The fixing screws pass through the vertical plate of the movable frame and are threaded into the positioning holes. Each vertical plate of the movable frame corresponds to multiple fixing screws. The support plate is fixedly connected to the vertical plate of the movable frame, and the fixing screws pass through the support plate and are threaded into the positioning holes. The support plate and the vertical plate of the movable frame correspond one-to-one. The motor is flattened and fixed on a support plate. One end of the rotating roller is rotatably connected to a support plate, and the other end of the rotating roller passes through the support plate and is fixedly connected to the motor shaft of the leveling motor, with a support bearing placed between the roller and the support plate. The light-shielding plate is fixedly connected to the inner side of the movable frame. The light-shielding plate has a cuboid structure, and there are two light-shielding plates arranged symmetrically about the movable frame, with a certain distance between them. The outer side of one of the light-shielding plates has a sliding groove, and the pressure plate is slidably connected to the light-shielding plate through the sliding groove. The light-shielding plate is placed between the pressure plate and another light-shielding plate. One end of the first telescopic rod is fixedly connected to the bottom surface of the moving frame cross plate, and the other end of the first telescopic rod is fixedly connected to the top surface of the pressure plate. The detection assembly consists of a photoelectric sensing plate, a connecting plate, a sliding plate, a second telescopic rod, a hinge block, a first hinge rod, a second hinge rod, a first connecting rod, and a second connecting rod. The photoelectric sensor plate has two width sides that are fixedly connected to the two vertical plates of the moving frame. The photoelectric sensor plate has a cuboid structure, and its width is less than the distance between the two light-shielding plates. The photoelectric sensor plate is positioned between the two light-shielding plates along its height. The photoelectric sensor plate is parallel to the support frame. The bottom surface of the photoelectric sensor plate is slightly higher than the height of the conveyor belt, and the top surface of the photoelectric sensor plate is slightly lower than the bottom surface of the light-shielding plates. The photoelectric sensor plate is fixedly connected to a connecting plate on each of its two long sides. The connecting plate has a long strip-shaped structure. The top surface of the photoelectric sensor plate and the top surface of the connecting plate are on the same plane, and the four corners are arc-shaped. The two light-shielding plates each have a sliding groove on their adjacent sides. The sliding plate is slidably connected to the light-shielding plate via a sliding groove on the light-shielding plate. There are two sliding plates, and the two light-shielding plates are arranged symmetrically. The bottom end of the sliding plate is slightly higher than the top surface of the photoelectric sensing plate. One end of the second telescopic rod is fixedly connected to the vertical plate of the movable frame, and the other end of the second telescopic rod is fixedly connected to the sliding plate. The hinge block is fixedly connected to the side of the sliding plate and placed near the top of the sliding plate. The hinge block is positioned between the two sliding plates, and there is a one-to-one correspondence between the hinge block and the sliding plate. One end of the first hinge rod is rotatably connected to the second hinge rod via a rotating shaft, and the rotating shaft is fixedly connected to the hinge block. The first connecting rod and the second connecting rod form a scissor mechanism. The middle portions of the first connecting rod and the second connecting rod are rotatably connected. Multiple sets of scissor mechanisms are provided, and these multiple scissor mechanisms are rotatably connected via a pivot. In each set, one end of the first connecting rod is rotatably connected to the other end of the second connecting rod in the next set via a pivot, and one end of the second connecting rod is rotatably connected to the other end of the first connecting rod in the next set. In the first set of scissor mechanisms, one end of the second connecting rod is rotatably connected to the other end of the second hinge rod, and the other end of the first connecting rod is rotatably connected to the other end of the first hinge rod. In the last set of scissor mechanisms, the other end of the second connecting rod is rotatably connected to the other end of the first hinge rod, and the other end of the first connecting rod is rotatably connected to the other end of the second hinge rod. Multiple supplementary lights are evenly distributed on the bottom surface of the first connecting rod, and multiple supplementary lights are evenly distributed on the bottom surface of the second connecting rod. The cotton fiber short fiber content detection device for wadding fiber products of the present invention also includes a light transmittance analysis system. This light transmittance analysis system establishes information interaction with the control module on the wadding fiber product production line. The light transmittance analysis system includes a signal converter and a data processor. The signal converter is placed on the movable frame, and the data processor is placed on the movable frame. The photoelectric sensor is connected to the signal converter via a data cable. The first telescopic rod, the second telescopic rod, and the leveling motor 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 reflected or transmitted light signals from cotton fibers at different wavelengths, collected by the photoelectric 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 moving frame and the upper parts are fixed by connecting the moving frame and the positioning hole with a fixing screw. The cotton fiber passes over the connecting plate and the photoelectric sensor plate. The control module starts the conveyor motor to drive the active conveyor wheel to rotate, so that the conveyor belt conveys the cotton fiber. At the same time, the leveling motor is started to drive the rotating roller to rotate, so that the rotating roller rotates in the opposite direction to the active conveyor wheel, thereby assisting the movement of the cotton fiber. The control module starts the second telescopic rod again, so that the distance between the two sliding plates is slightly less than the width of the cotton fiber. When it is desired to detect the short fiber content of a certain area of ​​cotton fiber, the first telescopic rod is driven to move the pressure plate down, so that the pressure plate and the connecting plate clamp the cotton fiber. Simultaneously, the conveyor belt and rotating rollers are controlled to stop working after a delay of no more than 2 seconds. During this delay, the continuous operation of the conveyor belt and rotating rollers ensures that the cotton fibers within the moving frame are laid flat under the friction of the conveyor belt. Supplemental lights below the first and second connecting rods illuminate the internal cotton fibers. A photoelectric sensor captures reflected or transmitted light signals from the cotton fibers at different wavelengths. These signals are transmitted to a data processor, which analyzes these signals to determine the length distribution of the cotton fibers, thereby calculating the short fiber ratio. The data is then sent back to the control module. If the short fiber ratio is within a preset range, operation continues; if the short fiber ratio is less than the preset range, the control module issues an alarm. Furthermore, multiple leveling brushes are evenly distributed on the side of the rotating roller. Each leveling brush has a long, strip-shaped structure, with one end fixedly connected to the side of the rotating roller and the other end having an arc-shaped structure. The leveling brushes are made of rubber. Furthermore, a pressure strip is fitted onto the bottom surface of the pressure plate. The pressure strip has a long strip-shaped structure and an arc-shaped bottom end. The pressure strip is made of rubber. Beneficial effects

[0006] First, it can monitor changes in the short fiber content of cotton fibers in real time, adjust production parameters in a timely manner, and ensure that the short fiber content meets the standard requirements during the production process.

[0007] Second, the device adopts a non-destructive testing method, which can perform testing without damaging the cotton wadding, thereby avoiding damage and waste to the finished product.

[0008] Third, the device has the ability to perform rapid testing to ensure that production efficiency is not affected, while reducing the time spent waiting for test results. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the cotton fiber short fiber content detection device for wadding fiber products of the present invention; Figure 2This is a three-dimensional structural diagram of the cotton fiber short fiber content detection device for wadding fiber products of the present invention; Figure 3 This is a schematic diagram of the structure of the cotton fiber short fiber content detection device for wadding fiber products of the present invention; Figure 4 This is a three-dimensional structural diagram of Embodiment 2 of the cotton fiber short fiber content detection device for wadding fiber products of the present invention; Figure 5 This is a three-dimensional structural diagram of Example 3 of the cotton fiber short fiber content detection device for wadding fiber products of the present invention. Attached Figure

[0010] The components are: connecting frame (1), support rod (2), support frame (3), positioning hole (4), conveyor belt (5), moving frame (6), light shield (7), support plate (8), rotating roller (9), active conveyor wheel (10), driven conveyor wheel (11), connecting plate (12), pressure plate (13), first telescopic rod (14), flattening motor (15), fixing screw (16), first hinge rod (17), second telescopic rod (18), sliding plate (19), hinge block (20), second hinge rod (21), photoelectric sensor plate (22), first connecting rod (23), second connecting rod (24), flattening brush (25), and pressure strip (26). Detailed Implementation Example 1

[0011] The present invention discloses a device for detecting the short fiber content of cotton fibers in wadding products, which is implemented as follows: The device comprises a conveying component, a positioning 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 (10), a driven conveyor wheel (11), and a conveyor belt (5). 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 (10) 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 (10) 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 (10) and the support frame (3). The driven transmission wheel (11) is rotatably connected to the support frame (3) at both ends. Multiple driven transmission wheels (11) are provided. The active conveyor wheel (10) and multiple driven conveyor wheels (11) are arranged at equal intervals along the length of the support frame (3). The active conveyor wheel (10) and multiple driven conveyor wheels (11) are connected by a conveyor belt (5). The positioning assembly consists of a positioning hole (4), a moving frame (6), a fixing screw (16), a support plate (8), a flattening motor (15), a rotating roller (9), a light-shielding plate (7), a pressure plate (13), and a first telescopic rod (14). The support frame (3) has multiple positioning holes (4) evenly distributed on both sides along its length. The movable frame (6) has a U-shaped structure and consists of a horizontal plate and two vertical plates. The fixing screw (16) passes through the vertical plate of the movable frame (6) and is threaded to the positioning hole (4). Each vertical plate of the movable frame (6) corresponds to multiple fixing screws (16). The support plate (8) is fixedly connected to the vertical plate of the movable frame (6), and the fixing screw (16) passes through the support plate (8) and is threadedly connected to the positioning hole (4). The support plate (8) and the vertical plate of the movable frame (6) correspond one-to-one. The flattening motor (15) is fixed on a support plate (8). One end of the rotating roller (9) is rotatably connected to a support plate (8), and the other end of the rotating roller (9) passes through the support plate (8) and is fixedly connected to the motor shaft of the leveling motor (15), and a support bearing is placed between the rotating roller (9) and the support plate (8). The light-shielding plate (7) is fixedly connected to the inner side of the moving frame (6). The light-shielding plate (7) has a cuboid structure. There are two light-shielding plates (7), which are symmetrically arranged about the moving frame (6) and are spaced a certain distance apart. The outer side of the light-shielding plate (7) has a sliding groove, and the pressure plate (13) is slidably connected to the light-shielding plate (7) through the sliding groove. The light-shielding plate (7) is placed between the pressure plate (13) and another light-shielding plate (7). One end of the first telescopic rod (14) is fixedly connected to the bottom surface of the horizontal plate of the movable frame (6), and the other end of the first telescopic rod (14) is fixedly connected to the top surface of the pressure plate (13). The detection assembly consists of a photoelectric sensor plate (22), a connecting plate (12), a sliding plate (19), a second telescopic rod (18), a hinge block (20), a first hinge rod (17), a second hinge rod (21), a first connecting rod (23), and a second connecting rod (24). The photoelectric sensor plate (22) is fixedly connected to the two vertical plates of the moving frame (6) on its two wide sides. The photoelectric sensor plate (22) has a cuboid structure and its width is smaller than the distance between the two light-shielding plates (7). The photoelectric sensor plate (22) is placed between the two light-shielding plates (7) in the height direction of the light-shielding plates (7). The photoelectric sensor plate (22) is parallel to the support frame (3). The bottom surface of the photoelectric sensor plate (22) is slightly higher than the height of the conveyor belt (5), and the top surface of the photoelectric sensor plate (22) is slightly lower than the bottom surface of the light-shielding plate (7). The photoelectric sensor plate (22) has two long side surfaces that are fixedly connected to a connecting plate (12). The connecting plate (12) has a long strip structure. The top surface of the photoelectric sensor plate (22) and the top surface of the connecting plate (12) are on the same plane, and the four corners are arc-shaped. The two light-shielding plates (7) have sliding grooves on their adjacent sides. The sliding plate (19) is slidably connected to the light-shielding plate (7) via a sliding groove on the light-shielding plate (7). There are two sliding plates (19), and the two light-shielding plates (7) are arranged symmetrically. The bottom end of the sliding plate (19) is slightly higher than the top surface of the photoelectric sensor plate (22). One end of the second telescopic rod (18) is fixedly connected to the vertical plate of the movable frame (6), and the other end of the second telescopic rod (18) is fixedly connected to the sliding plate (19). The hinge block (20) is fixedly connected to the side of the sliding plate (19) and placed near the top of the sliding plate (19). The hinge block (20) is placed between the two sliding plates (19), and the hinge block (20) corresponds one-to-one with the sliding plate (19). One end of the first hinge rod (17) is rotatably connected to the second hinge rod (21) via a rotating shaft, and the rotating shaft is fixedly connected to the hinge block (20). The first connecting rod (23) and the second connecting rod (24) form a scissor mechanism. The middle part of the first connecting rod (23) is rotatably connected to the middle part of the second connecting rod (24). The scissor mechanism is provided in multiple sets, and the multiple scissor mechanisms are rotatably connected by a rotating shaft. In each set, one end of the first connecting rod (23) is rotatably connected to the other end of the second connecting rod (24) of the next set through a rotating shaft. In each set, one end of the second connecting rod (24) is rotatably connected to the other end of the first connecting rod (23) of the next set. In the first set of scissor mechanisms, one end of the second connecting rod (24) is rotatably connected to the other end of the second hinge rod (21). In the first set of scissor mechanisms, the other end of the first connecting rod (23) is rotatably connected to the other end of the first hinge rod (17). In the last set of scissor mechanisms, the other end of the second connecting rod (24) is rotatably connected to the other end of the first hinge rod (17). In the last set of scissor mechanisms, the other end of the first connecting rod (23) is rotatably connected to the other end of the second hinge rod (21). The bottom surface of the first connecting rod (23) is evenly distributed with multiple supplementary lights, and the bottom surface of the second connecting rod (24) is evenly distributed with multiple supplementary lights. The present invention discloses a device for detecting the short fiber content of cotton fibers in wadding fiber products, which further includes a light transmittance analysis system. The light transmittance analysis system establishes information interaction with the control module on the wadding fiber product production line. The light transmittance analysis system includes a signal converter and a data processor. The signal converter is placed on the movable frame (6), and the data processor is placed on the movable frame (6). The photoelectric sensor (22) is connected to the signal converter via a data cable. The first telescopic rod (14), the second telescopic rod (18), and the leveling motor (15) 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 reflected or transmitted light signals of cotton fibers at different wavelengths collected by the photoelectric sensor (22) 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 moving frame (6) and the upper part are fixed by connecting the screw (16) through the thread of the moving frame (6) and the positioning hole (4). The cotton fiber passes over the connecting plate (12) and the photoelectric sensor plate (22). The control module starts the transmission motor to drive the active transmission wheel (10) to rotate, so that the conveyor belt (5) conveys the cotton fiber. At the same time, the flattening motor (15) is started to drive the rotating roller (9) to rotate, so that the rotating roller (9) rotates in the opposite direction to the active transmission wheel (10), so that the cotton fiber can be moved again. The control module starts the second telescopic rod (18) again, so that the distance between the two sliding plates (19) is slightly smaller than the width of the cotton fiber. When it is desired to detect the short fiber content of a certain area of ​​cotton fiber, the first telescopic rod (14) is driven to move the pressure plate (13) down, so that the pressure plate (13) moves down. The cotton fiber is clamped by the connecting plate (12), and the conveyor belt and rotating roller are controlled to stop working for a delay of no more than 2 seconds. During this process, the continuous operation of the conveyor belt (5) and rotating roller (9) allows the cotton fiber in the moving frame (6) to be placed flat under the friction of the conveyor belt (5). The supplementary lights under the first connecting rod (23) and the second connecting rod (24) can illuminate the cotton fiber inside. The photoelectric sensor plate (22) can capture the reflected or transmitted light signals of the cotton fiber at different wavelengths. These signals are transmitted to the data processor. The data processor analyzes these signals to determine the length distribution curve of the cotton fiber, calculates the number of cotton fibers in different length ranges, and calculates the short fiber rate. The data is then sent back to the control module. If the short fiber rate is within the preset range, the operation continues. If the short fiber rate is less than the preset range, the control module will issue an alarm. Example 2

[0012] The difference between this embodiment and embodiment 1 is that: multiple flattening brushes (25) are evenly distributed on the side of the rotating roller (9). The flattening brushes (25) have a long strip structure. One end of the flattening brushes (25) is fixedly connected to the side of the rotating roller (9). The other end of the flattening brushes (25) has an arc-shaped structure. The flattening brushes (25) are made of rubber. When in use, the flattening brushes (25) can generate a gentle pulling force on the cotton fibers, thereby preventing the cotton fibers from being broken due to excessive pulling force. Example 3

[0013] The difference between this embodiment and embodiment 1 is that: a pressure strip (26) is clamped on the bottom surface of the pressure plate (13), the pressure strip (26) is a long strip structure, the bottom end of the pressure strip (26) is an arc structure, the pressure strip (26) is made of rubber, and when used, the pressure strip (26) is relatively soft, which can prevent damage to the cotton fibers; The connecting frame (1) consists of a square frame and four columns. The design of the columns of the connecting frame (1) corresponding to the four corners of the bottom surface of the square frame improves the overall stability and load-bearing capacity. The design of the active conveyor wheel (10) and multiple driven conveyor wheels (11) being equidistantly arranged along the length of the support frame (3) ensures the smooth operation of the conveyor belt (5); The support frame (3) has multiple positioning holes (4) evenly opened on both sides along its length. The fixing screws (16) pass through the vertical plate of the moving frame (6) and are threaded to the positioning holes (4). The design of the moving frame (6) with multiple fixing screws (16) corresponding to one vertical plate realizes the precise positioning and fixing of the detection device. The pressure plate (13) is slidably connected to the light shield (7) through a sliding groove. The light shield (7) is placed between the pressure plate (13) and another light shield (7). One end of the rotating roller (9) is rotatably connected to a support plate (8). The other end of the rotating roller (9) passes through the support plate (8) and is fixedly connected to the motor shaft of the flattening motor (15). A support bearing is designed between the roller and the support plate (8). The pressure plate can pause briefly at one light shield of the cotton fiber, while the rotation of the rotating roller can ensure that the cotton fiber at the other light shield continues to move, thereby flattening the cotton fiber between the two light shields and improving the accuracy of subsequent testing. The light shield (7) is fixedly connected to the inner side of the moving frame (6). The light shield (7) has a cuboid structure. There are two light shields (7). The two light shields (7) are symmetrically arranged about the moving frame (6). The two light shields (7) are designed with a certain distance between them, which can effectively block light and protect the photoelectric sensor (22) from external light interference. The design of the scissor mechanism being connected to the sliding plate (19) at both ends allows the light source to be precisely positioned within the detection space, ensuring that every corner of the detection area is illuminated by light. This not only improves the efficiency of the light source but also ensures that the photoelectric sensor plate (22) can receive sufficient light signals, thereby improving the accuracy and reliability of the detection. At the same time, since the light source is effectively confined within the detection space, the light signal intensity received by the photoelectric sensor plate (22) is higher, which helps to reduce the response time of the sensor. The design of having multiple supplementary lights evenly distributed on the bottom surface of the first connecting rod (23) and multiple supplementary lights evenly distributed on the bottom surface of the second connecting rod (24) ensures that the detection area has sufficient light intensity, thereby ensuring that the photoelectric sensor plate (22) can receive a strong and stable light signal. The goal is to enable the conveying of cotton fibers via the conveying component, the flattening of cotton fibers inside the two light-blocking plates via the positioning component, and the calculation of the short fiber ratio via the detection component.

[0014] 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.

[0015] 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 short fiber content of cotton fibers in wadding fiber products, characterized in that: Composed of a conveying assembly, a positioning assembly, and a detection assembly, the conveying assembly consists of a connecting frame, a support rod, a support frame, an active conveyor wheel, a driven conveyor wheel, and a conveyor belt. The positioning assembly consists of positioning holes, a moving frame, a support plate, a leveling motor, a rotating roller, a light-shielding plate, a pressure plate, and a first telescopic rod. The support frame has multiple positioning holes evenly distributed on both sides along its length. The moving frame consists of a horizontal plate and two vertical plates. Fixing screws pass through the vertical plates of the moving frame and are threadedly connected to the positioning holes. The support plate is fixedly connected to the vertical plates of the moving frame. The leveling motor is fixedly mounted on a support plate. One end of the rotating roller is rotatably connected to a support plate, and the other end of the rotating roller passes through the support plate and is fixedly connected to the motor shaft of the leveling motor. The light-shielding plate is fixedly connected to the inner side of the moving frame, and a sliding groove is formed on the outer side of the light-shielding plate. The pressure plate is slidably connected to the light-shielding plate through the sliding groove. One end of the first telescopic rod is fixedly connected to the bottom surface of the horizontal plate of the moving frame, and the other end is fixedly connected to the top surface of the pressure plate. The detection assembly consists of a light... The device comprises an induction plate, a connecting plate, a sliding plate, a second telescopic rod, a hinge block, a first hinge rod, a second hinge rod, a first connecting rod, and a second connecting rod. The two width sides of the induction plate are fixedly connected to the two vertical plates of the moving frame, and the two length sides of the induction plate are fixedly connected to a connecting plate. The adjacent sides of the two light-shielding plates each have a sliding groove, and the sliding plate is slidably connected to the light-shielding plate via the sliding groove. One end of the second telescopic rod is fixedly connected to the vertical plate of the moving frame, and the other end is fixedly connected to the sliding plate. The hinge block is fixedly connected to the side of the sliding plate. One end of the first hinge rod is rotatably connected to the second hinge rod via a rotating shaft, and the rotating shaft is fixedly connected to the hinge block. The first and second connecting rods form a scissor mechanism, with the middle of the first connecting rod rotatably connected to the middle of the second connecting rod. Multiple scissor mechanisms are provided, and these multiple scissor mechanisms are rotatably connected via rotating shafts. The cotton fiber short fiber rate detection device for wadding fiber products also includes a light transmittance analysis system.

2. The cotton fiber short fiber content detection device for wadding fiber products according to claim 1, characterized in that... The light transmission analysis system establishes information interaction with the control module on the cotton fiber product production line. The light transmission analysis system includes a signal converter and a data processor. The signal converter and the data processor are placed on the moving frame. The photoelectric sensor is connected to the signal converter via a data cable. The first telescopic rod, the second telescopic rod, and the leveling motor 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 reflected or transmitted light signals of cotton fibers at different wavelengths collected by the photoelectric sensor into digital signals. The data processor and the signal converter interact. When the image analysis system is executed, it mainly performs the following steps: First, the moving frame and the upper parts are fixed by connecting the fixing screw through the threaded hole of the moving frame and the positioning hole. The cotton fibers pass over the connecting plate and the photoelectric sensor. The control module starts the conveyor motor to drive the active conveyor wheel to rotate, thereby conveying... The conveyor belt transports cotton fibers while simultaneously activating a leveling motor to rotate a rotating roller in the opposite direction to the active conveyor wheel, further assisting in fiber movement. The control module then activates a second telescopic rod, making the distance between the two sliding plates slightly less than the width of the cotton fiber. When testing the short fiber percentage in a specific area, the first telescopic rod is driven to lower a pressure plate, clamping the cotton fiber between the pressure plate and the connecting plate. Simultaneously, the conveyor belt and rotating roller stop working after a delay of no more than 2 seconds. During this process, the continuous operation of the conveyor belt and rotating roller ensures the cotton fibers within the moving frame are laid flat under the friction of the conveyor belt. Supplemental lights below the first and second connecting rods illuminate the internal cotton fibers. A photoelectric sensor captures reflected or transmitted light signals from the cotton fibers at different wavelengths. These signals are transmitted to a data processor, which analyzes them to determine the fiber length distribution, calculates the short fiber percentage, and sends the data back to the control module. If the short fiber percentage is within a preset range, operation continues; if it is less than the preset range, the control module issues an alarm.

3. The cotton fiber short fiber content detection device for wadding fiber products according to claim 1, characterized in that... Multiple leveling brushes are evenly distributed on the side of the rotating roller. The leveling brushes are elongated and have one end fixedly connected to the side of the rotating roller. The other end of the leveling brushes is arc-shaped and made of rubber.

4. The cotton fiber short fiber content detection device for wadding fiber products according to claim 1, characterized in that... A pressure strip is fitted onto the bottom surface of the pressure plate. The pressure strip has a long strip-shaped structure and an arc-shaped bottom end. The pressure strip is made of rubber.

5. The cotton fiber short fiber content detection device for wadding fiber products according to claim 1, characterized in that... 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 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. A support bearing is placed between the active conveyor wheel and the support frame. Both ends of the driven conveyor wheel are rotatably connected to the support frame. The active conveyor wheel and multiple driven conveyor wheels are connected by a conveyor belt.

6. The cotton fiber short fiber content detection device for wadding fiber products according to claim 1, 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 connecting frame columns correspond one-to-one with the four corners of the bottom surface of the square 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 fiber short fiber content detection device for wadding fiber products according to claim 1, characterized in that... The movable frame has a U-shaped structure, with multiple fixing screws corresponding to each vertical plate of the movable frame. The support plate corresponds one-to-one with the vertical plate of the movable frame. The light-shielding plate has a cuboid structure, and there are two light-shielding plates. The two light-shielding plates are symmetrically arranged about the movable frame, and there is a certain distance between the two light-shielding plates. The photoelectric sensing plate has a cuboid structure, and the width of the photoelectric sensing plate is smaller than the distance between the two light-shielding plates. The photoelectric sensing plate is placed between the two light-shielding plates in the height direction of the light-shielding plate.

8. The cotton fiber short fiber content detection device for wadding fiber products according to claim 1, characterized in that... The photoelectric sensor plate is arranged parallel to the support frame. The bottom surface of the photoelectric sensor plate is slightly higher than the height of the conveyor belt, and the top surface of the photoelectric sensor plate is slightly lower than the bottom surface of the light shield. The connecting plate has a long strip structure. The top surface of the photoelectric sensor plate and the top surface of the connecting plate are on the same plane, and the four corners are arc-shaped. A support bearing is placed between the rotating roller and the support plate.

9. The cotton fiber short fiber content detection device for wadding fiber products according to claim 1, characterized in that... Two sliding plates are provided, and the two light-shielding plates are arranged symmetrically. The bottom of the sliding plate is slightly higher than the top surface of the photoelectric sensor plate. The hinge block is placed near the top of the sliding plate and is positioned between the two sliding plates. The hinge block corresponds to the sliding plate one by one.

10. The cotton fiber short fiber content detection device for wadding fiber products according to claim 1, characterized in that... In each group, one end of the first connecting rod is rotatably connected to the other end of the second connecting rod in the next group via a pivot. In each group, one end of the second connecting rod is rotatably connected to the other end of the first connecting rod in the next group. In the first group of scissor lift mechanisms, one end of the second connecting rod is rotatably connected to the other end of the second hinge rod. In the last group of scissor lift mechanisms, the other end of the second connecting rod is rotatably connected to the other end of the first hinge rod. In the last group of scissor lift mechanisms, the other end of the first connecting rod is rotatably connected to the other end of the second hinge rod. Multiple supplementary lights are evenly distributed on the bottom surface of the first connecting rod and multiple supplementary lights are evenly distributed on the bottom surface of the second connecting rod.

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