Process and equipment for near infrared ray absorption and emission fiber and cashmere blended yarn

Abstract

The invention relates to the technical field of cashmere blended yarn preparation, and discloses near infrared ray absorption and emission fiber and cashmere blended yarn equipment which comprises a rack, a pre-carding unit and a main carding unit are arranged in the rack, and the pre-carding unit is communicated with the main carding unit through an air duct pipeline. The pre-carding unit and the main carding unit each comprise a cylinder and a working roller, a plurality of open grooves are formed in the side wall of the rack, sliding sleeves are installed in the open grooves, first wedge-shaped blocks are installed at the ends of the working rollers, an arc-shaped frame is installed on the rack, an electromagnetic mechanism is installed on the inner wall of the arc-shaped frame, and an iron shaft body is installed in the arc-shaped frame. According to the technology and equipment for absorbing and emitting the fiber and cashmere blended yarn through the near infrared rays, through transmission of the electromagnetic mechanism, the iron shaft body, the second wedge-shaped block and the first wedge-shaped block at the end of the working roller, online, dynamic and micro-adjustment of the carding gauge between the working roller and the cylinder is achieved; therefore, the non-uniformity of the fiber layer can be automatically adapted.

Description

Technical Field

[0001] This invention relates to the field of cashmere blended yarn preparation technology, specifically to the process and equipment for blending near-infrared absorbing and emitting fibers with cashmere yarn. Background Technology

[0002] Currently, as people's requirements for textiles evolve from basic warmth and aesthetics to a deeper focus on health, comfort, and functional integration, cashmere fiber, with its naturally soft feel and excellent warmth and breathability, has become an ideal raw material for high-end clothing and intimate apparel. However, its inherent limitations in active health functions such as antibacterial, antistatic, and microcirculation promotion make it difficult to meet the growing market demand for intelligent and healthy textiles. Near-infrared absorbing and emitting fibers, as an emerging functional fiber material, can absorb radiation from the human body and the environment and emit specific wavelengths of near-infrared light that are beneficial to the human body. Studies have shown that this wavelength of light can penetrate deep into subcutaneous tissue, producing a warming effect, promoting local blood circulation, relieving muscle fatigue, and also possessing multiple functions such as antibacterial, deodorizing, and antistatic properties. Blending such functional fibers with cashmere aims to combine the comfort of natural fibers with the technological functions of synthetic fibers to develop high-value-added yarns that combine excellent feel and significant health benefits. This is one of the important directions for the transformation and upgrading of the textile industry, with broad market prospects and application potential. However, in achieving high-quality blending of cashmere and near-infrared functional fibers, the significant differences in their physical properties fundamentally limit traditional carding processes. Cashmere fibers are fine and fragile, unable to withstand strong carding forces, while functional fibers often require sufficient opening and combing to effectively release their health-promoting and conductive properties. Traditional carding equipment, with its fixed carding spacing and static mechanical configuration, cannot simultaneously meet the contradictory needs of protecting fragile fibers and effectively combing functional fibers in a single carding cycle. Using larger spacing and gentler carding... To protect cashmere, functional fibers cannot be fully opened and evenly dispersed, easily clumping together in the yarn, affecting functional uniformity and blending effect. If a smaller spacing and strong combing are used to ensure the effectiveness of functional components, a large number of cashmere fibers will inevitably be broken and damaged, seriously impairing the softness, strength and overall quality of the yarn. Thus, it is difficult to achieve flexible combing of heterogeneous fiber blends in a single machine or single process, which restricts the quality of heterogeneous fiber blending systems. To address this, we propose a process and equipment for blending near-infrared absorbing and emitting fibers with cashmere yarn. Summary of the Invention

[0003] The purpose of this invention is to provide a process and equipment for blending near-infrared absorbing and emitting fibers with cashmere yarn, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a device for near-infrared absorption and emission fibers blended with cashmere yarn, comprising a frame, wherein a pre-carding unit and a main carding unit are arranged inside the frame, the pre-carding unit and the main carding unit are connected by an air duct, both the pre-carding unit and the main carding unit include a cylinder and multiple work rollers, multiple slots are formed on the side wall of the frame, and sliding sleeves are slidably connected to the slots inside the slots, with an elastic part connecting the sliding sleeves to the inner wall of the slots, and the sliding sleeves and work rollers are paired one-to-one. The working roller has one end that penetrates the inner wall of the sliding sleeve and extends to the outside. A wedge block is fixedly installed at the end of the working roller. An arc-shaped frame is fixedly installed on the side wall of the frame. An electromagnetic mechanism is fixedly installed on the inner wall of the arc-shaped frame. Multiple sliding sleeves are located inside the arc-shaped frame. An iron shaft is installed inside the arc-shaped frame. The iron shaft is located on one side of the electromagnetic mechanism. A wedge block is fixedly installed at one end of the iron shaft. The wedge block is engaged with the wedge block. A plastic spring connects the wedge block and the inner wall of the arc-shaped frame.

[0005] Preferably, a plurality of transmission shafts corresponding one-to-one with the sliding sleeves are fixedly installed on the side wall of the frame, and a transmission unit is provided between the sliding sleeves and the transmission shafts.

[0006] Preferably, the transmission unit includes a mounting frame fixedly mounted on the sliding sleeve, a transmission disc fixedly mounted on the transmission shaft, a meshing frame fixedly mounted on the transmission disc at equal angles in an annular shape, a meshing gear fixedly mounted on the end of the work roller inside the mounting frame, a connecting shaft rotatably connected to its inner wall inside the mounting frame, a drive gear mounted on the connecting shaft, and the drive gear meshing with the meshing gear.

[0007] Preferably, a fixed disc is fixedly installed at one end of the connecting shaft outside the mounting frame. Multiple meshing rods are fixedly installed on the fixed disc. Some of the meshing rods on the fixed disc mesh with the meshing frame on the transmission disc. The radius and number of teeth of the driving gear are both larger than those of the meshing gear.

[0008] Preferably, a rotating shaft is rotatably mounted on the outer wall of the frame, and a belt drive mechanism is connected between the rotating shaft and the cylinder end. A gear body is fixedly mounted on the rotating shaft, and a limiting shaft body that is rotatably connected to the side wall of the frame is provided above the rotating shaft. A transmission gear is fixedly mounted on the limiting shaft body, and the transmission gear meshes with the gear body. Synchronous pulleys are fixedly mounted on the limiting shaft body and multiple transmission shaft bodies, and the synchronous pulleys are connected to each other by a synchronous belt.

[0009] Preferably, a positioning shaft is fixedly installed at the feed inlet of the frame, and a connecting sleeve rotatably connected to its outer wall is installed on the positioning shaft. A lightweight scraper is fixedly installed on the connecting sleeve, and the lightweight scraper is located on the fiber conveying trajectory.

[0010] Preferably, a trigger shaft is also fixedly installed on the connecting sleeve, and multiple sensing elements are installed on the inner wall of the feed port of the frame. The sensing elements are located on the movement trajectory of the trigger shaft. The distance from the end of the trigger shaft to the axis of the connecting sleeve is greater than the distance from the end of the lightweight scraper to the axis of the connecting sleeve. A small torque torsion spring is connected between the connecting sleeve and the positioning shaft.

[0011] Preferably, the cylinder of the pre-carding unit uses a smooth-toothed carding cloth to card the cashmere fibers and pre-card the near-infrared functional fibers, while the cylinder of the main carding unit uses a sharp-toothed carding cloth to strongly open and separate the mixed fibers.

[0012] Preferably, the sensing element is electrically connected to the electromagnetic mechanism.

[0013] The process for manufacturing near-infrared absorbing and emitting fibers blended with cashmere yarns specifically includes the following steps: S1. After uniformly mixing cashmere fibers with near-infrared absorbing and emitting fibers in a predetermined ratio, feed them into the feed port of the frame. S2. When the mixed fibers flow through the feed inlet, they push the lightweight scraper to deflect around the positioning shaft, which in turn drives the trigger shaft to rotate synchronously. When the trigger shaft passes through the detection area of ​​the sensing element, the sensing element detects the thickness or density signal of the fiber layer in real time according to its deflection angle or trigger frequency. S3. The mixed fibers enter the pre-carding unit and are initially and gently carded by the smooth-toothed cylinder card cloth. At the same time, the electromagnetic mechanism is energized or the current is adjusted. The magnetic force generated by the electromagnetic mechanism causes the iron shaft to control the second wedge block to push the first wedge block, so that the work roller slides in the slot through the sliding sleeve. The elastic part deforms and the carding distance between the work roller and the cylinder is finely adjusted. S4. The pre-carded fibers are evenly transported to the main carding unit through the air duct; in the main carding unit, the sharp-toothed cylinder carding cloth strongly combs and opens the fibers; the position of the working roller is dynamically adjusted by the electromagnetic mechanism to ensure that the near-infrared functional fibers are fully opened and single-fiberized, and are evenly mixed with the cashmere fibers.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a lightweight scraper, a trigger shaft, and a sensing element at the feed inlet to form a real-time detection mechanism, which can sensitively detect changes in the thickness of the fed fiber layer. Combined with the transmission of an electromagnetic mechanism, an iron shaft, two wedge blocks, and one wedge block at the end of the working roller, it realizes online, dynamic, and micro-adjustment of the carding gap between the working roller and the cylinder. This allows it to automatically adapt to the unevenness of the fiber layer. When dealing with mixed raw materials of cashmere and near-infrared functional fibers, it can provide flexible protection for fragile cashmere in a single machine, while fully opening the functional fibers. This fundamentally solves the contradiction between protection and carding in the carding of heterogeneous fiber blends. 2. This invention adopts a layout in which a pre-carding unit and a main carding unit are connected in series and via air ducts. The cylinder of the pre-carding unit uses a smooth-toothed carding cloth for gentle pre-carding, while the cylinder of the main carding unit uses a sharp-toothed carding cloth for strong carding. Combined with the aforementioned adaptive spacing adjustment function, a two-stage carding process with dynamic adaptation is formed, which is first gentle and then strong. This effectively ensures the single-fiber dispersion of functional fibers and the integrity of cashmere fibers, and improves the blending uniformity and yarn quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the frame of the present invention; Figure 3 This is a schematic diagram of the internal structure of the feed inlet of the frame of the present invention; Figure 4 This is a schematic diagram of the positioning shaft and connecting sleeve structure of the present invention; Figure 5 This is a schematic diagram of the gear body and transmission gear structure of the present invention; Figure 6 This is a schematic diagram of a partial structure of the frame sidewall of the present invention; Figure 7 This is a partial structural diagram of the present invention; Figure 8 This is a schematic diagram of the meshing rod frame and meshing frame structure of the present invention; Figure 9 This is a schematic diagram of the transmission unit structure of the present invention; Figure 10 This is a schematic diagram of the electromagnetic mechanism and iron shaft structure of the present invention; Figure 11 This is a schematic diagram showing the separation of the working roller, wedge block one, and wedge block two structures of the present invention.

[0016] In the diagram: 1. Frame; 2. Pre-carding unit; 3. Main carding unit; 4. Air duct; 5. Cylinder; 6. Work roller; 61. Wedge block one; 7. Grooving; 71. Sliding sleeve; 72. Elastic part; 8. Arc frame; 81. Electromagnetic mechanism; 82. Iron shaft; 83. Wedge block two; 84. Plastic spring; 9. Drive shaft; 91. Drive disc; 92. Engaging frame; 10. Drive unit; 101. Mounting frame; 102. Meshing gear; 103. Connecting shaft; 104. Driving gear; 105. Fixed disc; 106. Meshing rod frame; 11. Rotating shaft; 111. Gear body; 12. Belt drive mechanism; 13. Limiting shaft; 131. Transmission gear; 132. Synchronizing pulley; 14. Positioning shaft; 141. Connecting sleeve; 142. Lightweight scraper; 143. Trigger-type shaft; 144. Sensing element; 145. Small torque torsion spring. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-11 This invention provides a technical solution: a device for near-infrared absorption and emission fibers blended with cashmere yarn, comprising a frame 1. Inside the frame 1, a pre-carding unit 2 and a main carding unit 3 are sequentially arranged along the fiber travel direction, and the two are connected by an air duct 4 built into the frame 1. This design facilitates the smooth transfer of fibers from the pre-carding unit 2 area to the main carding unit 3 area. Both the pre-carding unit 2 and the main carding unit 3 include a high-speed rotating cylinder 5, and multiple work rollers 6 are installed around the cylinder 5. The working roller 6 is covered with card cloth, which grasps, combs and transfers the fibers through the needle teeth. The cylinder 5 of the pre-carding unit 2 can be made of card cloth with relatively smooth teeth and slightly sparse tooth density. This configuration focuses on gently opening the cashmere fibers and pre-dispersing the functional fibers to reduce the burden of subsequent strong carding. The cylinder 5 of the main carding unit 3 can be made of card cloth with sharp teeth and high tooth density. This configuration focuses on fine and thorough combing of the pre-mixed fibers to achieve uniform mixing of the two fibers at the single fiber level. On the side wall of the frame 1 corresponding to the installation position of the work roller 6, multiple vertical slots 7 are machined. Each slot 7 is fitted with a sliding sleeve 71. The sliding sleeve 71 and the inner wall of the slot 7 are in sliding fit, so that it can only move smoothly along the slot 7. An elastic part 72 is connected between the sliding sleeve 71 and the slot 7. The elastic part 72 is a fatigue-resistant cylindrical helical compression spring. Its function is to provide a constant restoring force for the sliding sleeve 71, so that the work roller 6 can be stabilized in the initial reference position when there is no external command.

[0019] Each working roller 6 has a corresponding sliding sleeve 71 with its center hole extending outwards through it. A wedge block 61 is fixedly installed at the end of the working roller 6. The inclined surface of the wedge block 61 is precision ground, with a smooth surface and accurate angle to ensure efficient force transmission. An arc-shaped frame 8 is fixedly installed on the outside of the side wall of the frame 1. An electromagnetic mechanism 81 is fixedly installed on the inner wall of the arc-shaped frame 8. The electromagnetic mechanism 81 is mainly composed of an excitation coil and an iron core. When a direct current is applied to the coil, it can generate a stable magnetic field whose intensity is proportional to the magnitude of the current. All the sliding sleeves 71 are located within the arc-shaped frame 8. Within the enclosed space, multiple iron shafts 82 are installed inside the arc-shaped frame 8. One end of each iron shaft 82 is located within the magnetic field range of the electromagnetic mechanism 81. A wedge block 2 83 is fixedly installed at the end of the iron shaft 82 closest to the working roller 6. The slope angle of the wedge block 2 83 is completely complementary to the slope angle of the wedge block 1 61. A plastic spring 84 is also connected between the iron shaft 82 and the inner wall of the arc-shaped frame 8. The plastic spring 84 deforms when the iron shaft 82 is pushed and releases energy after the electromagnetic force is removed, assisting the iron shaft 82 to return to its original position accurately and smoothly.

[0020] Specifically, when current is applied to the electromagnetic mechanism 81, the electromagnetic mechanism 81 generates a magnetic field, which applies an axial repulsive force to the iron shaft 82. This repulsive force pushes the iron shaft 82 and the second wedge block 83 to move linearly towards the working roller 6. The inclined surface of the second wedge block 83 contacts the inclined surface of the first wedge block 61 at the shaft end of the working roller 6 and generates compression. The axial thrust is converted into a radial force through the inclined surface pair. This radial force pushes the end of the working roller 6, causing it to drive the sliding sleeve 71 to overcome the elastic force of the elastic part 72 and slide upward along the slot 7. This directly increases the vertical distance between the working roller 6 needle cloth and the lower cylinder 5 needle cloth, i.e., the combing gap. By continuously adjusting the current input to the electromagnetic mechanism 81, the combing gap can be adjusted in a micro, linear, and stepless manner. It has high adjustment accuracy and fast response speed. When the current decreases or is cut off, under the combined action of the reset elastic force of the elastic part 72 and the plastic spring 84, the working roller 6 and the sliding sleeve 71 move downward, and the gap returns to the preset minimum value.

[0021] Furthermore, on the side wall of the frame 1, a transmission shaft 9 corresponding to the sliding sleeve 71 is fixedly installed via a bearing seat (not shown in the figure). A transmission unit 10 is provided between the sliding sleeve 71 and the transmission shaft 9. The transmission unit 10 includes a mounting frame 101 fixedly installed on the sliding sleeve 71. The mounting frame 101 moves up and down with the sliding sleeve 71. A transmission disc 91 is fixedly installed on the shaft end of the transmission shaft 9. On the end face of the transmission disc 91, multiple radially outwardly extending meshing frames 92 are fixed at equal angles along the circumferential direction. These meshing frames 92 are shaped like radial racks. At the end of the work roller 6 A meshing gear 102 is fixedly installed, and a connecting shaft 103 is installed inside the mounting frame 101. The connecting shaft 103 can rotate freely within the mounting frame 101. A drive gear 104 is fixedly installed on the connecting shaft 103. The drive gear 104 and the meshing gear 102 at the shaft end of the work roller 6 are always meshed. In particular, the pitch circle radius and the number of teeth of the drive gear 104 are larger than those of the meshing gear 102, forming a speed-increasing gear pair. Its advantage is that it can enable the work roller 6 to obtain a higher surface linear speed without increasing the rotational speed of the transmission shaft 9, thus meeting the process requirements of high-efficiency carding, and the structure is compact. A fixed disc 105 is fixedly installed at the end of the connecting shaft 103 that extends out of the mounting frame 101. On the surface of the fixed disc 105, a plurality of meshing rods 106 are fixed radially. The cross-sectional shape of the meshing rods 106 matches the inner cavity shape of the meshing frame 92 on the transmission disc 91. In the assembled state, some of the meshing rods 106 on the fixed disc 105 will be inserted into the corresponding meshing frame 92 of the transmission disc 91 and form meshing or tight frictional engagement with it. The meshing frame 92 is located below the meshing rods 106.

[0022] When the sliding sleeve 71 drives the mounting frame 101 and all its internal components to move up and down to adjust the spacing due to process requirements, the spacing adjustment range required by the combing process is extremely small, usually between 0.05 and 0.08 mm. Therefore, the displacement of the meshing rod 106 on the fixed disc 105 in the vertical direction is very small. During the entire adjustment process, the meshing rod 106 is always within the effective space height of the meshing frame 92 and will not disengage. Therefore, when the transmission shaft 9 continues to rotate and drives the transmission disc 91 to rotate, the meshing frame 92 on the transmission disc 91 will push the meshing rod 106 through its inner wall, thereby driving the connecting shaft 103 to rotate. The power is then transmitted to the work roller 6 through the meshing of the drive gear 104 and the meshing gear 102, ensuring that the work roller 6 can maintain continuous and stable high-speed rotation in any working position.

[0023] A rotating shaft 11 connected to a power unit is installed on the outer wall of the frame 1. The power unit is preferably a servo motor. The rotating shaft 11 transmits power to the main shaft of the cylinder 5 of the pre-carding unit 2 or the main carding unit 3 through a belt drive mechanism 12, so that the cylinder 5 rotates at a set process speed. A gear body 111 is also fixedly installed on the rotating shaft 11. Above the rotating shaft 11, a limiting shaft 13 is rotatably connected to the side wall of the frame 1 through a bearing. A transmission gear 131 is fixedly installed on the limiting shaft 13. The transmission gear 131 directly meshes with the gear body 111 on the rotating shaft 11. Synchronous pulleys 132 of the same size and tooth shape are fixedly installed on the limiting shaft 13 and multiple transmission shafts 9. The synchronous pulleys 132 are driven by a synchronous belt.

[0024] To achieve automatic and precise adjustment of the carding gap based on the real-time thickness of the fed fiber layer, a positioning shaft 14 is fixedly installed at the fiber inlet of the frame 1. A connecting sleeve 141 is fitted onto the positioning shaft 14 via a low-friction bearing (not shown in the figure), allowing it to rotate flexibly by a small force. A lightweight scraper 142 is fixedly installed on the outer wall of the connecting sleeve 141. The lightweight scraper 142 is made of lightweight, high-strength material and has multiple carding needles installed on its surface to facilitate carding the fibers and increase the probability of contact with clumped fibers. The lower edge of the lightweight scraper 142 extends into the cross-section of the fiber conveying channel, maintaining gentle contact with the upper surface of the uniformly advancing fiber layer. Its advantage is that it has minimal resistance to fiber flow while being extremely sensitive to instantaneous changes in fiber layer thickness. A trigger-type shaft 1 is also fixedly installed on the connecting sleeve 141. 43. The installation position of the trigger shaft 143 is precisely calculated based on the lever principle. The distance from its axis to the rotation center of the connecting sleeve 141 is significantly greater than the distance from the lower end contact point of the lightweight scraper 142 to the fiber contact point to the rotation center of the connecting sleeve 141. This constitutes an effective lever amplification mechanism, which can amplify the small vertical displacement of the lightweight scraper 142 caused by the change in fiber layer thickness into a large angular displacement at the end of the trigger shaft 143. On the inner side wall of the feed inlet of the frame 1, facing the arc trajectory traversed by the swing of the end of the trigger shaft 143, multiple sensing elements 144 are installed at constant angle intervals. These sensing elements 144 can be non-contact photoelectric sensors or high-life proximity switches. The sensing elements 144 are electrically connected to the electromagnetic mechanism 81, and a small torque torsion spring 145 is connected between the connecting sleeve 141 and the positioning shaft 14.

[0025] When cashmere fibers and functional fibers mixed in a predetermined ratio are conveyed through the feed inlet, the thickness fluctuations at any position of the fiber layer will change the height of the lightweight scraper 142 in real time. When the fiber layer becomes thicker, it will lift the scraper; when it becomes thinner, the scraper will fall back under its own weight. The up-and-down swing of the scraper will drive the connecting sleeve 141 to rotate around the positioning shaft 14. The trigger shaft 143 fixed on it will swing synchronously. The thicker the fiber layer, the greater the angle at which the scraper is lifted, and the greater the angle through which the trigger shaft 143 rotates. During the swing, the number of sensing elements 144 that are triggered or passed through in sequence will be greater. All of the above-mentioned sensing elements 144 and electromagnetic mechanism 81 are connected to the same central control unit through cables. The control unit has pre-stored control logic established based on a large amount of process test data. This logic maps the real-time detected fiber thickness signal into a precise control command for the driving current of the electromagnetic mechanism 81 in the corresponding area. It should be noted that the control unit is existing technology, and therefore, the present invention has not described it in detail.

[0026] Specifically, after the equipment starts, the blended fibers are conveyed to the feed inlet of the frame 1. The lightweight scraper 142 fixed at the feed inlet contacts the surface of the fiber layer. Changes in the thickness of the fiber layer will cause the lightweight scraper 142 to deflect around the positioning shaft 14, and drive the trigger shaft 143 to rotate synchronously. During the rotation, the trigger shaft 143 will trigger or sweep the sensing elements 144 at different positions on its motion trajectory. The thicker the fiber layer, the larger the deflection angle, and the more sensing elements 144 are triggered. The control system diagram is not shown. A PLC or industrial controller can be used to collect the signals of the sensing elements 144 in real time, and accurately calculate the instantaneous thickness of the currently fed fiber layer. Then, the electromagnetic mechanism 81 corresponding to the pre-carding unit 2 is energized, and the electromagnetic mechanism 81 outputs a current of the corresponding magnitude. The electromagnetic mechanism 81 applies axial displacement to the iron shaft 82 located on its side. The repulsive force pushes the iron shaft 82 and the wedge block 83 fixed at its end toward the wedge block 61 at the shaft end of the work roller 6. Through the interaction of the inclined surfaces of the two wedge blocks, the axial thrust is converted into a radial force, which pushes the shaft end of the work roller 6, causing the external sliding sleeve 71 to overcome the elastic force of the elastic part 72 and slide upward along the slot 7 on the side wall of the frame 1. This precisely increases the carding gap between the work roller 6 and the high-speed rotating cylinder 5 below. When the fiber layer is detected to be thin, the control system reduces the current. Under the reset action of the elastic part 72 and the plastic spring 84, the work roller 6 moves downward and the gap decreases. It should be noted that since the feeding thickness of the same batch of fiber layers is within a certain range, the current of the electromagnetic mechanism 81 of the pre-carding unit 2 and the main carding unit 3 remains constant. Adjustments are only made when there is a large deviation from the range. To ensure the continuous rotation of the working roller 6, the transmission disc 91 fixed on the transmission shaft 9 is always engaged with the meshing rod 106 fixed on the fixed disc 105 at the end of the connecting shaft 103 through the meshing frame 92 on it. The rotating shaft 11 causes the limiting shaft 13 to rotate through the gear body 111 and the transmission gear 131, and the transmission shaft 9 is rotated under the action of the synchronous pulley 132 and the synchronous belt. The transmission shaft 9 then causes the driving gear 104 to rotate through the meshing frame 92 on the transmission disc 91 and the meshing rod 106 corresponding to the connecting shaft 103. The driving gear 104 then drives the meshing gear 102 fixed to the working roller 6, thereby ensuring that the working roller 6 can obtain stable rotational power at any interval position to complete the gripping and combing of fibers. The blended fibers first enter the pre-carding unit 2. In this unit, the control system, based on the detected fiber state, gently and initially opens and mixes the fibers, especially cashmere fibers, at a larger spacing to reduce damage. Subsequently, the fibers are drawn into the main carding unit 3 through the air duct 4. In the main carding unit 3, the control system controls the cylinder 5 to perform strong and fine carding of the fibers, ensuring that the functional fibers are fully opened, single-fiberized, and uniformly mixed with the cashmere fibers. The entire carding process achieves adaptive and flexible control based on fiber thickness and composition, completing high-quality carding of heterogeneous fiber blends in a single machine.

[0027] The process for manufacturing near-infrared absorbing and emitting fibers blended with cashmere yarns specifically includes the following steps: S1. After uniformly mixing cashmere fibers with near-infrared absorbing and emitting fibers in a predetermined ratio, the mixture is fed into the feed port of frame 1. S2. When the mixed fibers flow through the feed inlet, they push the lightweight scraper 142 to deflect around the positioning shaft 14, which drives the trigger shaft 143 to rotate synchronously. When the trigger shaft 143 passes through the detection area of ​​the sensing element 144, the sensing element 144 detects the thickness or density signal of the fiber layer in real time according to its deflection angle or trigger frequency. S3. The mixed fibers enter the pre-carding unit 2 and are initially and gently carded by the smooth-toothed cylinder 5. At the same time, the electromagnetic mechanism 81 is energized or the current is adjusted. The magnetic force generated by the electromagnetic mechanism 81 causes the iron shaft 82 to control the second wedge block 83 to push the first wedge block 61, so that the working roller 6 slides in the slot 7 through the sliding sleeve 71. The elastic part 72 deforms, and the carding distance between the working roller 6 and the cylinder 5 is finely adjusted. S4. The pre-carded fibers are evenly transported to the main carding unit 3 through the air duct 4. In the main carding unit 3, the sharp-toothed cylinder 5 needle cloth strongly combs and loosens the fibers. The position of the working roller 6 is dynamically adjusted by the electromagnetic mechanism 81 to ensure that the near-infrared functional fibers are fully loosened, single-fiberized, and evenly mixed with the cashmere fibers.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for near-infrared absorbing and emitting fibers blended with cashmere yarn, characterized in that, The machine includes a frame (1), inside which a pre-carding unit (2) and a main carding unit (3) are arranged. The pre-carding unit (2) and the main carding unit (3) are connected by an air duct (4). Both the pre-carding unit (2) and the main carding unit (3) include a cylinder (5) and multiple working rollers (6). Multiple slots (7) are opened on the side wall of the frame (1), and a sliding sleeve (71) is installed inside the slot (7) and slidably connected to it. An elastic part (72) is connected between the sliding sleeve (71) and the inner wall of the slot (7). The sliding sleeve (71) corresponds one-to-one with the working roller (6). One end of the working roller (6) penetrates the inner wall of the sliding sleeve (71) and extends... Extending to the outside, a wedge block (61) is fixedly installed at the end of the working roller (6), an arc frame (8) is fixedly installed on the side wall of the frame (1), an electromagnetic mechanism (81) is fixedly installed on the inner wall of the arc frame (8), multiple sliding sleeves (71) are located inside the arc frame (8), an iron shaft (82) is installed inside the arc frame (8), the iron shaft (82) is located on one side of the electromagnetic mechanism (81), a wedge block (83) is fixedly installed at one end of the iron shaft (82), the wedge block (83) cooperates with the wedge block (61), and a plastic spring (84) is connected between the wedge block (83) and the inner wall of the arc frame (8).

2. The device for near-infrared absorbing and emitting fibers and cashmere blended yarn according to claim 1, characterized in that: Multiple transmission shafts (9) corresponding to the sliding sleeves (71) are fixedly installed on the side wall of the frame (1), and a transmission unit (10) is provided between the sliding sleeves (71) and the transmission shafts (9).

3. The device for near-infrared absorbing and emitting fibers and cashmere blended yarn according to claim 2, characterized in that: The transmission unit (10) includes a mounting frame (101) fixedly mounted on a sliding sleeve (71), a transmission disc (91) fixedly mounted on the transmission shaft (9), a meshing frame (92) fixedly mounted on the transmission disc (91) at equal angles in an annular shape, a meshing gear (102) fixedly mounted on the end of the work roller (6) inside the mounting frame (101), a connecting shaft (103) rotatably connected to its inner wall inside the mounting frame (101), a drive gear (104) mounted on the connecting shaft (103), and the drive gear (104) meshing with the meshing gear (102).

4. The device for near-infrared absorbing and emitting fibers and cashmere blended yarn according to claim 3, characterized in that: The connecting shaft (103) is fixedly mounted with a fixed disc (105) at one end outside the mounting frame (101). Multiple meshing rods (106) are fixedly mounted on the fixed disc (105). Some of the meshing rods (106) on the fixed disc (105) mesh with the meshing frame (92) on the transmission disc (91). The radius and number of teeth of the driving gear (104) are both greater than those of the meshing gear (102).

5. The device for near-infrared absorbing and emitting fibers and cashmere blended yarn according to claim 4, characterized in that: A rotating shaft (11) is rotatably mounted on the outer wall of the frame (1). A belt drive mechanism (12) is connected between the rotating shaft (11) and the end of the cylinder (5). A gear body (111) is fixedly mounted on the rotating shaft (11). A limiting shaft (13) is provided above the rotating shaft (11) and is rotatably connected to the side wall of the frame (1). A transmission gear (131) is fixedly mounted on the limiting shaft (13). The transmission gear (131) meshes with the gear body (111). Synchronous pulleys (132) are fixedly mounted on the limiting shaft (13) and multiple transmission shafts (9). The synchronous pulleys (132) are connected to each other by a synchronous belt.

6. The apparatus for near-infrared absorbing and emitting fibers and cashmere blended yarn according to claim 5, characterized in that: A positioning shaft (14) is fixedly installed at the feed inlet of the frame (1). A connecting sleeve (141) is rotatably connected to the outer wall of the positioning shaft (14). A lightweight scraper (142) is fixedly installed on the connecting sleeve (141). The lightweight scraper (142) is located on the fiber conveying trajectory.

7. The apparatus for near-infrared absorbing and emitting fibers and cashmere blended yarn according to claim 6, characterized in that: A trigger shaft (143) is also fixedly installed on the connecting sleeve (141). Multiple sensing elements (144) are installed on the inner wall of the feed port of the frame (1). The sensing elements (144) are located on the movement trajectory of the trigger shaft (143). The distance from the end of the trigger shaft (143) to the axis of the connecting sleeve (141) is greater than the distance from the end of the lightweight scraper (142) to the axis of the connecting sleeve (141). A small torque torsion spring (145) is connected between the connecting sleeve (141) and the positioning shaft (14).

8. The apparatus for near-infrared absorbing and emitting fibers and cashmere blended yarn according to claim 7, characterized in that: The cylinder (5) of the pre-carding unit (2) uses a smooth-toothed needle cloth to card cashmere fibers and pre-card near-infrared functional fibers. The cylinder (5) of the main carding unit (3) uses a sharp-toothed needle cloth to strongly open and separate mixed fibers.

9. The apparatus for near-infrared absorbing and emitting fibers and cashmere blended yarn according to claim 8, characterized in that: The sensing element (144) is electrically connected to the electromagnetic mechanism (81).

10. The process for manufacturing near-infrared absorbing and emitting fibers blended with cashmere yarn, characterized in that: The apparatus based on the near-infrared absorbing and emitting fiber and cashmere blended yarn as described in claim 9 specifically includes the following steps: S1. After uniformly mixing cashmere fibers with near-infrared absorbing and emitting fibers in a predetermined ratio, the mixture is fed into the feed port of the frame (1). S2. When the mixed fibers flow through the feed inlet, they push the lightweight scraper (142) to deflect around the positioning shaft (14), which drives the trigger shaft (143) to rotate synchronously. When the trigger shaft (143) passes through the detection area of ​​the sensing element (144), the sensing element (144) detects the thickness or density signal of the fiber layer in real time according to its deflection angle or trigger frequency. S3. The mixed fibers enter the pre-carding unit (2) and are initially and gently carded by the toothed cylinder (5) card cloth. At the same time, the electromagnetic mechanism (81) is energized or the current is adjusted. The magnetic force generated by the electromagnetic mechanism (81) causes the iron shaft (82) to control the second wedge block (83) to push the first wedge block (61), so that the working roller (6) slides in the slot (7) through the sliding sleeve (71), the elastic part (72) deforms, and the carding distance between the working roller (6) and the cylinder (5) is finely adjusted. S4. The pre-carded fibers are evenly transported to the main carding unit (3) through the air duct (4). In the main carding unit (3), the sharp-toothed cylinder (5) needle cloth strongly combs and loosens the fibers. The position of the working roller (6) is dynamically adjusted by the electromagnetic mechanism (81) to ensure that the near-infrared functional fibers are fully loosened, single-fiberized, and evenly mixed with the cashmere fibers.

Images