35 results about "Yarn strength" patented technology

The invention relates to the technical field of yarn detection, and discloses a textile nylon yarn detection device which comprises a detection frame and a detection rotating disc rotationally arranged at the upper end of the detection frame, a traction clamp assembly is arranged at the top of the detection rotating disc, and the traction clamp assembly comprises traction seats symmetrically and movably arranged at the two ends of the top of the detection rotating disc; one end of the traction seat is provided with a tension sensor, one end of the tension sensor is provided with a connecting frame movably matched with the rotary drum, and the upper end of one side of the connecting frame is provided with an upper clamping plate. Through mutual cooperation of the arranged detection rotating disc, the arranged raw material storage disc and the arranged traction clamp assembly, end fixing and traction of yarn can be automatically achieved according to rotation of the detection rotating disc during detection, meanwhile, the yarn on the raw material storage disc can be pulled to be unwound, subsequent yarn fixing and traction can be continued after one circle of rotation, and the detection efficiency is improved. Therefore, the continuous detection of the yarn strength is realized, and the working efficiency is greatly improved.

The application belongs to the field of spinning and yarn, and provides a preparation method of high-loft warm eiderdown blended yarn, comprising the following steps: selecting pure white eiderdown with eiderdown content greater than or equal to 95%, fiber length of 10mm-30mm and loft of AAAA grade or above as eiderdown; selecting wool as base material fiber, and the blending ratio of eiderdown is less than or equal to 30%, and the rest is wool; pretreating the eiderdown and the wool respectively, then combining the eiderdown and the wool to obtain a mixture; combing the mixture, then performing head doubling, two doubling, roving, twisting, twisting and self-winding, and the high-loft warm eiderdown blended yarn is obtained. Wool fiber is used as the base material to provide the yarn body framework and strength support of the yarn, the strength and moisture absorption of the yarn are improved, and the dyed wool and white eiderdown are mixed to highlight the white quality of the eiderdown.

This utility model discloses a blended fiber mixing device for processing blended yarns, including a base. A processing cylinder and a mixing cylinder are respectively arranged on the left and right sides of the upper part of the base. The processing cylinder and the mixing cylinder are jointly and fixedly installed with a feeding channel. A discharge port is fixedly installed on the right side of the mixing cylinder, and a feeding port is fixedly installed on the upper left side of the processing cylinder. A cover plate is placed on the feeding port, aiming to solve the problem of low product quality. The key technical point is: a blended fiber mixing device for processing blended yarns. This utility model uses a combination of rotation and vibration to pre-treat the fiber raw materials, effectively removing impurities and significantly improving the quality of the yarn. The yarn after impurity removal has more uniform strength and a finer feel, thereby improving the quality of the final product.

The utility model discloses a single yarn strength machine for improving accuracy of fabric preparation relates to single yarn strength machine technical field, including the single yarn strength machine body of vertical placement in the ground, the single yarn strength machine body front side is equipped with the adjusting groove. This single yarn strength machine for improving accuracy of fabric preparation, through adjusting screw drive adjusting frame horizontal removal, reverse screw drive detection slider symmetry reverse removal, realized the accurate positioning of clamping block in two -dimensional plane, to satisfy the demand of different yarn spacing and stretching path, through the linkage driving swing arm around fixed axle rotation, make all clamping block automatic, synchronous open and whole to adjusting frame interior retreat and avoid, need not manual intervention to remove the fixture from test area fast, leave out sufficient space for operator fast removal old yarn, place new yarn, greatly shorten the test interval time, improved the efficiency of continuous batch detection.

The invention discloses a low-damage recovery method of waste aramid fibers and a preparation method of regenerated yarns. The recovery method comprises the following steps: cutting waste aramid clothes into fragments; the method comprises the following steps: in an inert atmosphere, carrying out plasma treatment on waste aramid fiber clothing fragments at a low temperature, carrying out mixed reaction on the treated waste aramid fiber clothing fragments and 1-butyl-3-methylimidazole chlorine salt ionic liquid, selectively dissolving non-target components, separating out undissolved flame-retardant fibers after the reaction is finished, and washing and drying to obtain regenerated flame-retardant fibers. The preparation method of the regenerated yarn comprises the steps that the three raw materials are preliminarily mixed and then subjected to stepped mixed fiber carding, then two-channel vortex spinning is conducted, and the regenerated yarn is prepared. Under the low-temperature and non-chemical corrosion conditions, the waste flame-retardant textile can be effectively cleaned, the original flame-retardant performance of the waste flame-retardant textile can be kept to the utmost extent, the prepared regenerated yarn is prepared through two-channel vortex spinning and has an obvious'core-sheath 'structure, the yarn strength CV value is smaller than or equal to 9.5%, and the yarn evenness is good.

The invention discloses a high-performance paper yarn and a preparation method thereof, and particularly relates to the technical field of textiles. The method comprises the following steps: preparing a padding working solution, carrying out two-dipping and two-rolling treatment on raw paper, and controlling the liquid carrying rate to be 60-80%; reducing the water content of the paper to 15-25% by adopting infrared pre-drying, and then carrying out medium-temperature rapid curing and drying at 85-95 DEG C for 15-20 seconds; cooling and rolling to obtain a reinforced paper roll; and slitting and twisting the reinforced paper roll to obtain the finished product paper yarn. Through a specific resin compounding system and a gradient drying and curing process, the technical contradiction that the strength and the flexibility of the paper yarn are difficult to consider at the same time is synergistically solved, the breaking strength and the folding strength of the paper yarn are synchronously and remarkably improved, and the process is continuous, efficient and suitable for industrial production.

The invention relates to the technical field of textile engineering, in particular to a spinning tension dynamic optimization method and system for reinforcement learning, and the method comprises the steps: constructing a spinning controller through a multi-strategy convolutional neural network based on Riemannian manifold, and extracting features through a convolutional network of a three-layer special structure, a value network and a comparative advantage analysis module are combined to realize multi-strategy decision; establishing an offline simulation environment pre-training controller; seamless adaptation from simulation to reality is realized by adopting a transfer learning mechanism of manifold preserving mapping; model training is accelerated by using a distributed computing architecture based on a Spark framework; the trained controller is used for completing dynamic optimization of yarn tension, the expression capacity for the complex nonlinear relation of spinning parameters is enhanced through the manifold learning theory, the yarn strength and uniformity are remarkably improved, the end breakage rate is reduced, the production efficiency is improved, dynamic balance of yarn quality and production efficiency is achieved, and good industrial application value is achieved.

The present invention provides a modified sustainable droplet-wet spinning technology aimed at enhancing hemp yarn quality. Implemented on a ring spinning machine, the technology delivers a controlled amount of water onto the top front roller which results in a more compact spinning triangle. The invention can be readily implemented on commercial ring spinning systems and improve both tenacity and hairiness of fibers comprising hemp.

The invention discloses a down yarn electrostatic spinning nozzle and a down yarn preparation device and method, and belongs to the technical field of textile machinery. In order to solve the problems that the combination strength of down feather and core wires is insufficient and the down feather and the core wires are easy to fall off, the invention provides a spray head which comprises a plunger part, an inner runner part, a spinning bottom plate and a spray head shell, and a core wire channel and a melt channel which are isolated from each other are constructed; the melt is conveyed to the spray head through the extruder and the melt pump, the melt forms fibers at the tip end of the conical surface of the spray head shell through the high-voltage electrostatic field, the fibers wrap the flock-covered core wire penetrating through the core wire channel, and finally the fibers are guided and collected by negative-pressure rotating airflow generated by the cyclone generator. According to the method, uniform and stable preparation of the down feather yarn can be achieved, the strength and binding force of the yarn are improved, the natural multi-stage pore structure and lipoid biofilm characteristics of down feather are reserved, and the yarn has excellent heat preservation, breathability and waterproof performance.

The utility model discloses a silk dividing device on a single-yarn strength machine in the technical field of single-yarn strength machines, which comprises a silk hanging plate, a silk pressing plate, a silk guide hook and a silk pressing rod, the silk dividing device plays a role in guiding and limiting silk threads at one drawing end through the silk guide hanging plate, ensures that each silk thread needing to be detected can be hooked stably and cannot slip, and ensures that the silk threads are not prone to falling off. A plurality of silk pressing plates are additionally arranged, each silk pressing plate can guide one silk thread in a hanging connection mode, meanwhile, only one silk thread is moved when the silk thread is horizontally moved and pulled every time, the situation that the silk threads are wound mutually due to synchronous movement is effectively avoided, the silk thread guiding device can guide the silk threads more stably, and the silk thread guiding efficiency is improved. And the same silk thread is pressed on the same silk thread pressing plate, so that the silk thread is stably pressed, the situation that the silk thread slips when being pulled is avoided, and the detection precision is improved.

The utility model discloses environment-friendly breathable yarn and fabric, and belongs to the technical field of textiles, the environment-friendly breathable yarn comprises a yarn body, the yarn body comprises base layer supporting yarn, a plurality of strength enhancing yarn is wound outside the base layer supporting yarn, the strength enhancing yarn is high twist yarn with the twist degree larger than 1500 twists per meter, and a plurality of environment-friendly degradable fiber yarn is wound outside the strength enhancing yarn. The environment-friendly degradable fiber yarn is arranged to be low-twist yarn with the twist degree smaller than 400 twists per meter, through the combination of the inner layer high-twist-degree high-strength yarn and the outer layer low-twist environment-friendly degradable fiber yarn, the yarn strength is remarkably improved, meanwhile, the soft and breathable characteristics are achieved, double optimization of the mechanical property and the comfort degree is achieved, and after the outer layer environment-friendly degradable fiber yarn is degraded, the environment-friendly degradable fiber yarn is not prone to falling off. The inner base layer supporting yarn and the strength enhancing yarn can be recycled, new environment-friendly yarn is directly wound on the inner core which is kept intact and qualified in quality, and therefore cyclic utilization is achieved, the life cycle of materials is prolonged, waste pollution is reduced, and the environment-friendly efficiency and efficient utilization of resources are both considered.

The application relates to a spinning method of a two-component blended yarn, which adopts a double-feeding double-separation comb rotor spinning technology, and the two-component blended yarn is composed of first-component fiber segments and second-component fiber segments arranged alternately; first, the ratio S of the length L1 of the first-component fiber segments to the length L2 of the second-component fiber segments in the two-component blended yarn is set, S is not equal to 1, and the types or colors of the first component and the second component are different; then, the included angle lambda between the vertical line C1 of the first-component corresponding fiber outlet and the rotary axis of the rotor and the vertical line C2 of the second-component corresponding fiber outlet and the rotary axis of the rotor is calculated; finally, the feeding mass ratio of the first component to the second component is controlled to be 1:1, the spinning is carried out according to the calculated included angle lambda, and the two-component blended yarn is obtained. The application can realize accurate regulation and control of the interval distance proportion of the two-component fiber segments on the yarn surface, and the obtained yarn strength and yarn evenness are good.

The invention belongs to the technical field of textile industry, and discloses a cotton yarn strength detection device which comprises a detection box, an air pressure cylinder fixedly arranged on the outer top wall of the detection box and a moving plate vertically and slidably arranged in the detection box, a guide hole is formed in the side wall of the detection box, and the moving plate is vertically and slidably arranged in the guide hole. The outer top wall of the detection box is fixedly provided with a placement cylinder, the outer edge of the top of the placement cylinder is fixedly and hermetically connected with an air pressure cylinder, and the technical principles of air pressure driving and pressure release valve threshold value sequential control, concave-convex embedding of clamping blocks to increase the clamping area, and one-way locking of a detection tooth slope matched with a detection pin and a tension spring are adopted; the device can automatically complete the process switching from clamping to stretching, achieves the non-damage stable clamping of cotton yarns, converts the stretching deformation into the displacement which can be visually read, and solves the problems that the existing equipment needs manual intervention, the cotton yarns are liable to slip or knotted and broken to cause data distortion, and the detection result is difficult to quantify and compare. And the detection efficiency and the strength judgment precision are effectively improved.

The invention discloses a high-strength low-twist yarn and a production method thereof, and belongs to the technical field of textiles. According to the production method of the high-strength low-twist yarn, tencel fibers are used as raw materials, and the high-strength low-twist yarn is produced through the procedures of blowing, cotton carding, drawing and rotor spinning in sequence. In the rotor spinning process, the count is set to be 5S-15S, the twist degree is set to be 200-500 twists per meter, the speed of a spinning cup is set to be 80000-100000 rpm, the speed of a cotton feeding roller is set to be 80-100 m / min, and the air suction negative pressure is set to be-800 Pa to-1000 Pa; the carding roller is subjected to nickel surface treatment; the spinning rotor is subjected to boron plating treatment; and a spiral convex groove is adopted for preventing the twisting head. According to the production method provided by the invention, the performance balance of low twist and high strength is realized, and the effective guarantee of the resultant yarn strength under the condition of low twist is realized.

The application discloses a production method of antibacterial lustrous fabric, selects fine denier bamboo pulp fibers with a specification of 1.11 dtex*38 mm, forms slivers through a blowing-carding combination, and then prepares fine denier bamboo pulp slivers through three drawing processes; the front end hook and the rear end hook of the bamboo pulp sliver are straightened and arranged through a lower carding roller which is suspended and provided with a needle cloth between the drafting system of the first drawing process and the second drawing process and the output horn; a apron tensioner provided with staggered tensioning pins on two side edges of a supporting end which is in contact with a lower apron is arranged in a spinning process, the friction resistance of the supporting end to the lower apron is reduced, efficient drafting of the bamboo pulp roving with high fiber straightness is realized, the yarn strength is improved, the broken ends are reduced, then the high-quality production of bamboo pulp yarn with super strong twist factor is realized, and the production of antibacterial lustrous fabric is realized.

The application discloses a method for optimizing yarn strength and raw material ratio based on big data, and relates to the technical field of textile engineering.The method, under the authorization of an enterprise, acquires production record data with time stamps and batch numbers from an ERP system by using SQL query technology, and performs data cleaning and standardization processing on the data to construct a raw material ratio sequence p and a yarn strength sequence S.The raw material ratio is divided into several ratio intervals by a kernel density estimation method, interval samples are extracted to calculate the strength response rate RQX and the yarn strength fluctuation VQD of each ratio interval, a comprehensive structure index ZJG is jointly constructed to evaluate the ratio sensitivity, the response interval that meets the conditions is selected in combination with the target strength constraint, and the recommended ratio scheme is output by sorting through the response consistency index CWD.The application can provide ratio adjustment suggestions based on historical data driving for the enterprise to optimize the spinning process, and improve the stability and target matching degree of the yarn strength.

The utility model relates to the technical field of yarn fixing, and discloses a single yarn strength tester convenient for yarn fixing, a strength stretching component comprises a group of bases, a contraction component comprises two groups of bearing seats, a rotating shaft and a roller limiting sleeve are respectively arranged on the close surfaces of the bearing seats on the left and right sides, and the rotating shaft is connected on the inner wall of the roller limiting sleeve in a sliding manner; telescopic rods are installed on the inner walls of the two sides of the base, a driving motor is installed on the outer wall of the base on the right side, and one section of each telescopic rod penetrates through the corresponding base to be connected with the driving motor. Through the arrangement of the driving motor, the rotating shaft and the roller limiting sleeve and the connection of the driving motor and the telescopic rod, the driving motor operates to directly drive the telescopic rod to act and provide stable power for the contraction assembly, and the rotating shaft is in sliding connection with the roller limiting sleeve, so that the internal structure of the contraction assembly is more flexible during operation; the shrinkage requirements of yarns with different specifications can be met, and the adaptability of the equipment to various yarns is enhanced.

This invention belongs to the field of textile technology, specifically relating to a lyocell environmentally friendly yarn with long-lasting moisture-wicking and quick-drying functions, its preparation method, and its applications. The preparation method uses lyocell fiber as the base material, which undergoes fluorine-free water-repellent modification treatment, followed by a compact Sirospun spinning process to produce the yarn. This yarn retains the natural skin-friendly and soft texture of lyocell, while also possessing excellent properties such as long-lasting moisture-wicking and quick-drying, good fibrillation resistance, high yarn strength, good spinning properties, evenness, low hairiness, antistatic properties, environmental friendliness, and high cost-effectiveness. It is suitable for preparing high-end functional fabrics for sports and outdoor applications, solving the problems of slow moisture wicking and dissipation, easy fibrillation, poor spinnability, low production efficiency, and high losses associated with existing lyocell fibers, and enabling large-scale production.

The present invention relates to a mesh fabric for a shoe upper and a shoe upper manufactured using the same, and provides a mesh fabric for a shoe upper, which is woven using elastic yarn, strength-reinforcing yarn, and melt-bonding yarn, so that the mesh fabric and a sub-pattern or logo are heat-bonded by the melt-bonding yarn and the strength-reinforcing yarn, thereby making attachment easy and sturdy, and the strength of the upper is maintained by the strength-reinforcing yarn constituting the mesh fabric, thereby preventing the occurrence of a problem of shape instability due to exposure of an adhesive and weakening of the strength of the upper during use, and a shoe upper manufactured using the mesh fabric.

The embodiment of the invention discloses an online yarn strength detection method, device and equipment and a storage medium, and belongs to the technical field of spinning, a tension sensor is arranged between a yarn guide roller and a yarn bobbin, and the method comprises the steps that the first yarn guide speed of the yarn guide roller is obtained; determining a test speed based on the first yarn leading speed, wherein the test speed is greater than the first yarn leading speed; in the yarn guiding process of the yarn guiding roller, the yarn strength is obtained based on the test speed and the tension sensor; under the condition that the yarn strength meets the requirement, it is determined that the yarn meets the production requirement. Automatic online yarn strength detection is achieved, manpower resources can be saved, online detection of yarn strength is achieved, the problem that yarn quality is unqualified suddenly caused by customer factors such as equipment or environment at a certain moment can be found in time, spinning product quality is improved from the side, and production efficiency is improved. The strength of the yarn is detected online in real time, extra spindle stopping operation is not needed, and the spinning efficiency of the yarn can be improved.

The application discloses a method for manufacturing ring-dyed-like yarn from waste pure cotton fabric, and yarn and fabric, and belongs to the field of textiles. The method comprises the following steps: crushing white waste pure cotton fabric into loose fibers; dyeing the loose fibers into first loose fibers, second loose fibers and third loose fibers with gradually deepened colors; additionally dyeing long-fiber cotton into colored cotton fibers with a color deeper than that of the third loose fibers; and spinning to obtain ring-dyed-like yarn. During the drawing process, slivers formed by the colored cotton fibers, the first loose fibers, the second loose fibers and the third loose fibers are arranged in the same plane in the order of deep to shallow and shallow to deep according to the colors. Finally, yarn with gradually shallower colors from the outside to the inside can be obtained, which has a ring-dyed-like effect, is beneficial to making the unique aging effect of denim fabric, and enables the long-fiber cotton to be on the outermost side during the drawing process, which is beneficial to improving the strength of the yarn, making up for the insufficient strength of the loose fibers and making the denim fabric have a relatively rough effect.

The utility model relates to the field of fiber strength detection, and discloses a polypropylene fiber yarn strength detection device which comprises a bottom plate, the top end of the bottom plate is fixedly connected with a mounting frame, a detection mechanism is arranged on the inner side of the mounting frame and above the bottom plate, and the detection mechanism comprises a rotating rod. The left end of the rotating rod is rotatably connected with the inner wall of the mounting frame, a control groove is formed in the outer wall of the rotating rod, a sliding block is slidably connected to the inner wall of the mounting frame, a control ball is fixedly connected to the inner wall of the sliding block, a lower fixing plate is fixedly connected to the front end of the sliding block, and the detection mechanism further comprises a sliding plate. According to the utility model, through the arrangement of the detection mechanism, it is ensured that a plurality of polypropylene fibers with different diameters can be placed into different placing grooves at the same time and are stretched at the same time, and the stretching distances are ensured to be consistent, so that the effects of detecting the polypropylene fibers with different diameters at the same time and ensuring the detection accuracy are achieved.

The invention relates to the technical field of single yarn strength detection, and provides a cotton yarn single yarn strength detection device which comprises a single yarn strength tester body used for detecting cotton yarn single yarn strength, a fixed support is arranged at the top of the single yarn strength tester body, and a sliding support is arranged on the single yarn strength tester body in a sliding mode. The two ends of the detected single cotton yarn are clamped between the fixed support and the sliding support, the connecting supports are fixedly connected to the fixed support and the sliding support, the close sides of the two connecting supports are fixedly connected with fixed cover plates, the opposite sides of the two connecting supports are movably provided with movable cover plates, and the movable cover plates are fixedly connected with the fixed cover plates. And a spiral lead cylinder is communicated between the fixed cover plate and the movable cover plate on the same side. By means of the technical scheme, the technical problems that in the prior art, a single yarn strength tester is inconvenient to stably clamp the two sides of a cotton yarn single yarn, and the surface tension of the clamped cotton yarn single yarn is difficult to accurately control are solved.

The invention belongs to the field of spinning and yarn, and provides a preparation method of high-fluffiness warm-keeping goose down blended yarn, which comprises the following steps: selecting pure white goose down with the down content of more than or equal to 95%, the fiber length of 10-30mm and the fluffiness of more than AAAA level as goose down; wool is selected as base material fibers, the blending proportion of goose down is 30% or below, and the balance is wool; the method comprises the following steps: respectively pretreating goose down and wool, and combining the wool to obtain a mixture; the mixed material is subjected to carding, primary drawing, secondary drawing, roving, flower twisting and self-winding, and the yarn is obtained. Wool fibers are adopted as a base material, a yarn body framework and strong support of the yarn are provided, the strength and hygroscopicity of the yarn are improved, dyed wool and white goose down are mixed, and the white texture of the goose down is highlighted.

The invention relates to the technical field of fabric processing, in particular to a pleated fabric preparation process and a product thereof, and the process comprises the following steps: firstly, cotton fibers, polyester fibers and jute fibers are sequentially subjected to blowing, cotton carding, drawing, roving, spinning and spooling treatment and then blended into mixed yarns; then the mixed yarn is subjected to yarn steaming treatment, and the strength and wear resistance of the yarn are enhanced through multiple times of high-temperature steam setting; weaving the yarns into a fabric, and sequentially carrying out hydrogen peroxide solution treatment to improve the softness and remove weak parts of fibers, and softening to further improve the touch feeling and reduce the friction coefficient between the fibers; finally, pleating treatment is conducted, the fabric surface area is increased, moisture absorption and breathability are improved, meanwhile, the direct contact area with the skin is reduced, and the friction feeling is reduced. The fabric is suitable for outdoor wearing and home scenes.

The doubling winder for the cotton textiles comprises a bottom plate, a control switch set is fixedly connected to the front section of the left side of the upper surface of the bottom plate, a fixing cover of an annular structure is fixedly connected to the middle of the upper surface of the bottom plate, and a stepping motor is fixedly connected to the upper end of the interior of the fixing cover. Supporting columns are fixedly connected to the left rear end and the right front end of the upper surface of the bottom plate respectively, a doubling frame is fixedly connected to the top ends of the supporting columns, a sliding rail of an annular structure is fixedly connected to the upper surface of the bottom plate, a rotating plate is slidably connected to the upper side of the sliding rail, and fixing bases are fixedly connected to the upper surface of the rotating plate in a circumferential array mode; the upper end of the fixed seat is rotationally connected with a winding seat, the upper surface of the rotating plate is fixedly connected with a yarn guide frame through a supporting rod, the bobbins are arranged in a circumferential array mode, compared with a column of bobbins, space can be saved, meanwhile, yarn is twisted during doubling, the yarn strength after doubling is effectively improved, the yarn processing step is omitted, and the yarn quality is improved. Therefore, the purpose of improving the spinning efficiency is achieved.

The application discloses a kind of T / R yarn sizing sizing material and its sizing process, belong to yarn sizing technical field.In the sizing material of the application, chemical sizing (polyacrylate) is used in combination with vegetable sizing (potato starch) to form a mixed sizing material.The vegetable component can ensure that the yarn is fully wrapped, and in the case of wrapping the yarn, the yarn strength is improved, the yarn friction is reduced, and the yarn wear resistance coefficient is improved.The chemical component can improve the flexibility of the sizing film and strengthen the adhesion, which can further improve the yarn strength and wear resistance.The two components work together to effectively improve the strength, wear resistance and weaving performance of T / R yarn.The application uses the cone yarn method to size T / R yarn, which is simple and efficient.The opening sizing temperature of the application is low, and the sizing temperature is also low.The opening sizing and sizing process can be completed directly in the dye vat without the need for other opening sizing equipment, which not only requires low equipment, but also effectively reduces energy consumption.

The invention provides a fiber yarn running device and fiber yarn strength detection equipment. The device comprises a stand, a rotating assembly rotationally arranged on the stand, a plurality of storage assemblies arranged on the rotating assembly, trays stacked in the storage assemblies, a discharging assembly and a push-back assembly which are arranged on the stand, and jacking assemblies located on the two sides of the storage assemblies. The discharging assembly is located between the multiple storage assemblies, the discharging assembly and the push-back assembly are oppositely arranged at the two ends of the storage assemblies, and the jacking assembly comprises a jacking structure and a sliding structure for driving the jacking structure to be close to or away from the storage assemblies. The discharging assembly is used for pushing the material trays in the storage assembly to the push-back assembly, and the push-back assembly is used for pushing the material trays back into the storage assembly. According to the invention, fibers in the tray can be detected in a full-automatic manner, the detection efficiency is greatly improved, and the labor cost is reduced.

The invention discloses a preparation method of bleached China-hemp and noil rotor pure spinning yarn, and belongs to the technical field of spinning. The preparation method of the bleached China-hemp noil rotor pure spinning yarn comprises the following steps that bleached China-hemp noil fibers are subjected to opening treatment, and opened fibers are obtained; spraying a curing aid to the opened fibers to obtain fibers subjected to curing treatment; carrying out double-roller combined carding on the fibers subjected to the curing treatment to obtain carded fibers; the carded fibers are subjected to drafting and drawing treatment, and drawn China-hemp drawn slivers are obtained; feeding the drawn China-hemp drawn slivers into a rotor spinning machine, and performing rotor spinning to obtain the pure China-hemp single yarn. The invention aims to systematically solve the resultant yarn problems of poor rotor spinning spinnability, insufficient resultant yarn strength, high end breakage rate and the like caused by the problems of low strength, poor cohesive force and the like of bleached China-hemp noil fibers with the length of less than 30 mm, and is suitable for stable production of pure China-hemp rotor spinning single yarns and plied yarns with the number of 28.4 tex and more.

The application discloses a new material yarn strength testing device, and relates to the technical field of new material detection.The device comprises a vertical plate and a grabbing assembly.A storage rod is arranged at a corner of the vertical plate, and a damping roller is arranged on the upper part of one side of the vertical plate.A limiting ring is arranged below the damping roller, and the limiting ring is fixedly connected with the vertical plate.The device can realize full-automatic feeding and positioning of the new material acrylic yarn.During the process, the grabbing assembly can automatically avoid collision in movement through the cooperation of the baffle inclined surface and the pulley seat.Meanwhile, the clamping and releasing of the yarn can be automatically completed with the aid of a mechanical trigger mechanism, and no additional electric control components are needed, so that the system is simplified, the cost is reduced, and the damping roller can cooperate with the clamping action to keep the yarn in a constant tension and flat state before testing.Through the cooperative design of the groove of the positioning plate and the clamping position, the yarn can be placed vertically, regularly and fixedly in the testing station.