948results about "Drafting machines" patented technology

The invention relates to a hemp and wool fiber drawing and drafting device and process using a single-skin plate for drafting. The device sequentially comprises a rear roller leather roller pair, a single-skin plate drafting mechanism and a front roller leather roller pair. The rear roller and leather roller pair comprises a rear roller and a rear leather roller; the front roller and leather roller pair comprises a front roller and a front leather roller; the single leather plate drafting mechanism comprises a rear leather plate roller, a front leather plate roller and a rear pressing roller corresponding to the rear leather plate roller, and the front pressing roller, the rear leather plate roller and the front leather plate roller are sleeved with a drafting leather plate. The rear compression roller, the front compression roller and the drafting leather plate have a synergistic effect, the elastic jaw is used for controlling fibers, the movement of short fibers can be controlled, the short fibers cannot be dispersed out of fiber strands, the evenness of output strands can be improved, the long fibers can be smoothly drawn out, and the situation that drafting cannot be achieved is avoided. The single-skin plate is adopted for drafting, fibers cannot be damaged, and due to the fact that the single-skin plate drafting structure is simple and can adapt to high speed, the sliver outlet speed can be increased, and the production efficiency is improved.

The invention relates to the technical field of polyester wool top production, in particular to a polyester wool top production optimization method based on multivariate data analysis, which optimizes the quality control of polyester wool tops through feedback control and improves the strength and elasticity indexes of the polyester wool tops. The method comprises the steps of obtaining fluidity indexes of raw materials according to raw material information in a polyester wool top spinning stage; the compatibility index of the auxiliary is obtained according to the auxiliary material information in the polyester wool top spinning stage; collecting a temperature data set of the whole process of the polyester wool top spinning stage; obtaining a raw material influence strength predicted value according to the temperature data set and the fluidity index corresponding to the raw material; according to the temperature data set and the compatibility index corresponding to the auxiliary material, obtaining an auxiliary influence strength prediction value; fusing the raw material influence strength prediction value and the assistant influence strength prediction value to obtain a spinning influence strength prediction index; and correcting the draw ratio of the polyester wool top in the drawing stage according to the spinning influence strength prediction index, and executing the corrected draw ratio to produce the polyester wool top.

The utility model relates to a special-shaped pipe for a compact spinning device and a tension supporting mechanism of the special-shaped pipe, which comprise an integrated negative pressure compact pipe with a smooth surface and a negative pressure cavity, and a rib plate which is arranged at the lower part of the negative pressure compact pipe and extends towards one side of a compact lower roller, the negative pressure gathering pipe is provided with at least one air suction connector communicated with the negative pressure cavity and a plurality of airflow guide grooves formed in the wall of the arc-shaped guide pipe. A tension supporting seat is arranged on the lower portion of the rib plate, a rod hole used for installing a tension rod is formed in the tension supporting seat, and installation grooves which correspond to the airflow guide grooves and are used for installing tension supporting arms and gear receding notches used for receding the carrier gear are formed in the tension supporting seat at intervals. According to the utility model, the strength and the processing and assembling precision of the special-shaped pipe can be improved, the synchronism of the lattice apron is good, and the spinning consistency is improved.

The invention belongs to the technical field of textile dyeing and finishing, and particularly relates to a low-twist compact siro twisted spinning yarn, a preparation method thereof and a process for producing knitted fabric by adopting the low-twist compact siro twisted spinning yarn. Comprising the following procedures of raw cotton preparation, blowing, cotton carding, pre-drawing, sliver lap forming, combing, sliver lap forming, combing, drawing, roving, spinning and spooling. In the roving and spinning procedures, the low-twist compact siro twisted spun yarn is prepared in a compact spinning mode, a siro spinning mode and a twisted spinning mode in sequence. The yarn is improved, siro spinning and twist spinning are overlaid on the basis of compact spinning, the obtained fabric is softer in hand feeling, the yarn formed by combining the three spinning modes is used for the knitted fabric, and the advantages of the raw material end are all reflected in the knitted fabric.

The utility model relates to the technical field of ramie spinning, in particular to a ramie net bundling device of a ramie spinning gilling drawing frame, which comprises a yarn guide assembly and two fixing seats, a collecting box is arranged in the middle of the top end of the yarn guide assembly, and the improved ramie net bundling device is arranged on the yarn guide assembly through matching of the collecting box, a fan and a scraper. When the ramie net bundling device is used, dust and cotton scraps on the surface of ramie are scraped and collected, pollution caused by scattering of the dust and the cotton scraps is avoided, the problem that manual cleaning of workers is needed due to scattering of the dust and the cotton scraps on the surface of the ramie is solved, the labor intensity of the workers is reduced, and the working efficiency is improved. According to the ramie net bundling device, the stability of ramie in the bundling process is greatly improved in the use process of the ramie net bundling device through cooperation of the wire guide wheel, the limiting block and the clamping pin, the problem that the ramie is prone to being knotted due to wire jumping in the conveying process is solved, and therefore the working efficiency in the ramie net bundling process is greatly improved; therefore, the ramie net bundling requirement of a ramie spinning gilling drawing frame is met.

A spinning station of a spinning machine for producing a thread from a sliver. A thread end is taken up by a take-up device and transferred to a preparation device downstream from a vortex chamber of the spinning device, the thread end is subsequently treated in the preparation device and then transferred to the vortex chamber, a drafting system for supplying a sliver to the vortex chamber is powered up, wherein an exit roller pair of the drafting system is accelerated to a predetermined draw-off speed, and the sliver is spun onto the thread end in the vortex chamber and a draw-off device for drawing off the thread spun in the vortex chamber is powered up and accelerated up to the draw-off speed. The speed of the exit roller pair and / or of the draw-off device increases non-linearly and / or approaches the predetermined draw-off speed non-linearly around the end of powering up.

The invention discloses slivering equipment based on cotton-type wool fibers, and relates to the technical field of slivering of cotton-type wool fibers, and the slivering equipment comprises a positive sliver guide device, a stretch-breaking device, a slivering device, a transmission device for driving each device, and an embedded electronic control system which are arranged in sequence. Stable and uniform conveying is ensured through closed-loop control of the active unwinding rotating disc and the tension sensor, static electricity is effectively restrained through the automatic spraying system, the full-anti-static rubber roller and the coiling disc, the spinnability is improved, soft and accurate fiber straightening and length control are achieved through double-set five-up-ten-down full-delta-shaped curve stretch-breaking combined with pneumatic pressurization, and the production efficiency is improved. Compacting slivering and antistatic large-diameter straight pipe coiling guarantee that fiber slivers are compact in structure and excellent in forming, an embedded electronic control system conducts digital precise regulation and control on key parameters such as tension, gauge, drafting and pressure, automatic stopping and automatic creeling are achieved when the slivers are broken, and finally the effects of high-quality wool top production, high production efficiency and high production flexibility are achieved.

The invention discloses a phase spinning fancy yarn and a production device thereof, and belongs to the technical field of spinning. The phase spinning fancy yarn is formed by a base yarn section and a wave-shaped yarn section in a staggered mode, the wave-shaped yarn section is of a conical transition structure with the thick middle and the two gradually-thin ends, and the key improvement is that the base yarn section and the wave-shaped yarn section are equal in linear density. The production device comprises a phase spinning mechanism arranged between a front drafting device and a yarn guide mechanism, the phase spinning mechanism comprises a driving wheel, a driven wheel and a circular ring belt, and yarn strands wind two edge strips of the circular ring belt in an S shape; the second driving device drives the driving wheel to rotate; the control unit controls all the components in a coordinated mode. The yarn diameter change is formed under constant-speed feeding through the periodic change of friction force, the problems that traditional bunchy yarn is uneven in twist, low in strength, much in hairiness and difficult in yarn density control are effectively solved, and the yarn quality and the weaving performance are remarkably improved.

The utility model discloses a drawing frame, relates to the technical field of textile machinery, and can automatically control lifting or falling of a cradle according to needs, so that the labor cost is reduced, and the working efficiency of equipment is improved. The drawing frame comprises a drafting mechanism; the first end of the cradle is rotationally connected with the drafting mechanism; the transmission assembly is connected with the second end of the cradle; and the driving piece is used for driving the transmission assembly so as to lift or drop the cradle.

The invention relates to a siro spinning manufacturing process. The siro spinning manufacturing process comprises the following steps of S1, cotton carding; s2, drawing is carried out; s3, roving; s4, performing siro spinning on the single slivers through a spinning frame to form siro yarns; s4, the spinning frame comprises a rack and a drafting mechanism, the drafting mechanism comprises a plurality of working rubber rollers and working rollers, the working rollers are mounted on the rack, a first mounting base is slidably mounted on the rack, a second mounting base is slidably mounted on the first mounting base, the working rubber rollers are mounted on the second mounting base, and the first mounting base slides in the direction away from the working rollers; the second mounting base slides in the axial direction of the working rubber roller, and a positioning mechanism is arranged on the machine frame to temporarily hold the yarn. Yarn is temporarily held through the positioning mechanism regularly, then the position of the working rubber roller is adjusted by moving the first mounting base and the second mounting base in the working process of the spinning frame, and the working rubber roller cannot be frequently replaced due to failure caused by excessive abrasion of the middle.

The application discloses a kind of bundled biaxial skin-core structure tensile yarn spinning processes, specifically including the following steps, step S1: one low modulus high elongation fiber filament one and one low modulus high elongation fiber filament two are unwound by active feeding roller, and are respectively fed into lower layer hollow spindle center tube one and lower layer hollow spindle center tube two, as two core filaments;Step S2: high modulus low elongation fiber filament one is wrapped on the surface of the core filament in positive helical line configuration at lower layer guide hook one;High modulus low elongation fiber filament two is wrapped on the surface of the core filament in reverse helical line configuration at lower layer guide hook two;Form biaxial skin-core structure covering yarn system, and pass through upper layer hollow spindle center tube;Step S3: at upper layer guide hook, the fiber filament yarn with excellent elastic elongation wound on upper layer hollow spindle is bound to the surface of the biaxial skin-core structure covering yarn system with low spiral covering density, to form bundled biaxial skin-core structure tensile yarn.

The invention discloses an automatic cleaning device for flyings, dust and impurities on the surface of a leather roller of a drawing frame, and relates to the technical field of drawing frames. The leather roller comprises a leather roller seat, a leather roller body is installed on one side of the leather roller seat, and a scraper is arranged on one side of the leather roller body. Through the rotation effect of the rotating rod, the fixing cylinder and the stand column in the anti-blocking mechanism, scraped flyings are wound on the surface of the stand column, the flyings are prevented from directly blocking the filter screen, and therefore it is guaranteed that the ventilation quantity of the filter screen is stable. Flying is further guided to flow to the fixed cylinder through cooperation of a material guide plate and a semi-ring sleeve, accumulation is reduced, the maintenance frequency is reduced, the cleaning efficiency is improved, the humidification mechanism monitors the humidity of the working environment of the leather roller in real time through a hygrometer, when the humidity is lower than a set value, a linkage assembly automatically starts an atomization plate to spray water mist, and static electricity is effectively reduced. The reduction of static electricity can obviously reduce the adsorption of flying and dust impurities, a virtuous cycle is formed, the surface of the leather roller is protected, and the service life of equipment is prolonged.

The invention discloses a low-cost pure cotton yarn production method, which adopts fine staple cotton and long stapled cotton fibers as raw materials, realizes the production of high-quality pure cotton yarn under the condition of reducing the use amount of the long stapled cotton fibers by controlling the distribution of the two fibers in a yarn body in spinning, and then provides the low-cost pure cotton yarn production method. Long stapled cotton / fine staple cotton core-spun roving with long stapled cotton serving as outer wrapping fibers and fine staple cotton serving as the center is prepared through a core-spun technology in the roving process, a four-roller three-area drafting structure is adopted in the spinning process, and long stapled cotton / fine staple cotton fiber strands with long stapled cotton fibers mainly located on the outer portion and long stapled cotton and fine staple cotton mixed fibers serving as the center are prepared through drafting. Then pure cotton spun yarn with the outer portion mainly made of long stapled cotton fibers and the center made of long stapled cotton and fine staple cotton mixed fibers is produced through twisting, distribution control over the two kinds of fibers in the yarn body is achieved, and therefore low-cost production of the pure cotton yarn with the excellent appearance effect and the yarn forming quality is achieved.

The fiber traction device comprises a first roller assembly, a second roller assembly, a third roller assembly, a bearing seat guide rail and a pressure bar assembly, the positions of the second roller assembly and the third roller assembly can be adjusted through the bearing seat guide rail, and fibers with the normal length in raw materials are effectively drafted. According to the fiber traction device provided by the embodiment of the invention, the mounting base of the pressure bar assembly is transferred to the first roller assembly from the second roller assembly. After adjustment, the pressure bar assembly and the first roller assembly form a fixed position relation, the pressure bar assembly can be closer to a holding line of the first roller assembly, short fibers are well controlled, and when fibers with normal lengths in raw materials need to be increased in the process of processing, the distance of a main drafting area is increased. The distance between the first roller and the second roller can be adjusted as required, so that fibers with normal lengths in raw materials are effectively drafted.

The invention discloses a self-adaptive drafting device and a spinning method, a drafting system comprises a front drafting roller pair, a middle drafting roller pair and a rear drafting roller pair, a middle lower roller or a rear lower roller is selected as a driven lower roller, the rest rear lower roller is selected, the front lower roller or the middle lower roller and the front lower roller are active lower rollers, and a roller sleeve of the driven lower roller is connected with a roller shaft through a bearing. A roller sleeve of the driving lower roller is fixedly connected with a roller shaft and is driven by a corresponding servo motor to actively rotate, the middle lower roller is selected as the driven lower roller, self-adaptive adjustment of draft multiple distribution in the drafting process is achieved, the rear lower roller is selected as the driven lower roller, and self-adaptive adjustment of draft multiple distribution in the drafting process is achieved. The self-adaptive finishing drafting of fed short fiber roving before main drafting is achieved, the self-adaptive drafting process is achieved under the condition that the driven lower roller does not need to be driven by a motor and does not need to be connected with the driving lower roller through a gear for transmission, the drafting effect is improved, the overall structure of the spinning frame is simplified, and the production cost is saved.

The utility model relates to the field of pneumatic gathering devices of compact spinning machines, and discloses a protective cover and device for preventing compact spinning special-shaped pipes from being clamped, which comprises a cover body of an arc-shaped plate structure. Each connecting piece comprises a fan-shaped base plate, a turnup edge extending along the arc-shaped edge of the base plate is vertically arranged on one face of the base plate, the radian of the turnup edge corresponds to the radian of the cover body, the protruding face of the turnup edge is attached to the inwards-concave face of the cover body, and meanwhile bolt holes are vertically formed in the base plate. The special-shaped pipe can be effectively prevented from being impacted by air flow generated in the spinning process, and flyings can be prevented from flowing into the special-shaped pipe; fly entering the special-shaped pipe, the grid and the tension bracket is reduced, the service life of the special-shaped pipe is prolonged, the number of times of truck clamping is reduced, meanwhile, the maintenance difficulty is reduced, the production efficiency is improved, the labor cost is reduced, and the labor intensity of operators is also reduced. Installation is convenient, and the structure of an existing spinning machine does not need to be changed.

The invention discloses a spinning method for wrapping blended yarns, which comprises the following steps of: adopting a front row of drafting roller pairs, a middle row of drafting roller pairs and a rear row of drafting roller pairs which are independently driven, sleeving left and right rotating shaft sleeve groups which are axially symmetrically arranged on a roller shaft of a lower roller, and sleeving left and right rubber roller sleeve groups which are axially symmetrically arranged on a rubber roller shaft of an upper rubber roller; three pairs of pressing, holding and feeding jaws for short fiber roving are respectively formed on the roller shaft and the first rotating shaft sleeve and the second rotating shaft sleeve in the left and right rotating shaft sleeve groups in a bilateral symmetry manner; a first pair of short fiber strands which are pressed, drafted and output on a roller shaft, a second pair of short fiber strands which are pressed, drafted and output on a second rotating shaft sleeve and a third pair of short fiber strands which are pressed, drafted and output on a first rotating shaft sleeve are output in a lower, middle and upper space overlapping state, and production of needed wrapped blended yarn is achieved. Then direct blending in the spinning process is achieved, different fiber components in blended yarn are arranged in a layered mode, the blending efficiency is improved, and different blending purposes are achieved.

The utility model relates to the field of twisting machines, in particular to an electric roller of a twisting machine, which comprises a twisting machine frame and electric roller assemblies, the electric roller assemblies are symmetrically arranged on the upper portion of a frame body of the twisting machine frame, and suspension plates are symmetrically arranged at the bottom of the frame body of the twisting machine frame and below the electric roller assemblies. A driving box is arranged on one side of a first traction wheel and one side of a second traction wheel, a stepping motor is arranged in the driving box, and a third cylindrical gear is driven to rotate through the stepping motor, so that the first traction wheel and the second traction wheel which are assembled and connected to the two sides can rotate clockwise; therefore, the yarn can be smoother when being pulled by the traction wheel, the yarn can be better guided to the winding roller at the bottom to be wound, and the full-automatic roller is longer in service life compared with a traditional semi-automatic roller.

The utility model discloses a bundling machine used for processing composite fiber, which comprises a stable bottom plate, the top of the stable bottom plate is fixedly connected with a bearing outer frame through a support, the inner side of the bearing outer frame is rotatably connected with an inner rotating frame, the inner side of the inner rotating frame is fixedly connected with a multilateral rotating drum, and the multilateral rotating drum is fixedly connected with a bearing outer frame. A telescopic guide groove is formed in the surface of the multilateral rotating drum. The utility model relates to the technical field of bunching machines. According to the bundling machine for processing the composite fibers, the telescopic guide groove is formed in the surface of the multi-edge rotary drum, the rectangular supporting frame capable of sliding is installed, the multi-face conical base is installed on the inner side of the multi-edge rotary drum through the threaded rod, and due to the arrangement of the structures, during adjustment, the threaded rod is rotated to drive the multi-face conical base to move; the multi-face conical base can push the multiple rectangular supporting frames to move synchronously, the multiple phase change wheels can be located at the same height, and the fiber processing quality is guaranteed through adjustment accuracy.

The utility model belongs to the technical field of spinning frames, and particularly relates to a segmented drafting transmission device for a roller in a spinning frame, two groups of segmented drafting transmission devices are arranged on a rack in a central symmetry structure, and each segmented drafting transmission device comprises a V-shaped mounting plate matched with the section of an air duct; a first adjusting assembly and a second adjusting assembly are further arranged on the V-shaped mounting plate, a reduction gearbox is arranged between the first adjusting assembly and the second adjusting assembly, and the reduction gearbox comprises a sealing box body and a speed reduction assembly; the speed reduction motor and the speed reduction box are combined with the V-shaped mounting plate and the middle roller to perform special structural arrangement, so that the size of the device is simplified on the premise that the functions of the device are guaranteed, occupation of spindle space in a spinning frame is reduced, the torsional vibration phenomenon of the middle roller is weakened to be within an allowable range, and meanwhile, the torsional vibration of the middle roller is reduced. Compared with the structure of a spinning frame in the prior art, the loss yield is reduced, and the advantage of improving the yield of the spinning frame is reflected from the side.

The utility model discloses a feeding roller and a rotor spinning machine, and relates to the technical field of spinning. A plurality of bead groups are fixedly arranged on the outer side wall of the roller shaft, the bead groups are circumferentially and uniformly distributed around the axis of the roller shaft, and a spacing is formed between every two adjacent bead groups; the bead group comprises at least one first bead, and the first bead extends along the axis of the roller shaft; and in the circumferential direction of the roller shaft, the circumferential length of the interval is consistent with the circumferential length of one rib group. And finally, the nub effect of the prepared hemp-feeling yarn is better.

The invention relates to a high-temperature-resistant low-compression spinning rubber covered roller and a preparation method thereof.The high-temperature-resistant low-compression spinning rubber covered roller comprises an alloy roller core and a rubber blending material layer, the alloy roller core is wrapped with the rubber blending material layer, and the rubber blending material layer is characterized by comprising, by weight, 50-70 parts of carboxy nitrile rubber; 20 to 30 parts of butyronitrile-isoprene rubber; 10 to 20 parts of phenyl siloxane rubber; 5-10 parts of a nano reinforcing agent; 3 to 10 parts of an antistatic agent; 5-8 parts of zinc oxide; 2-4 parts of an accelerant; 5 parts of titanium dioxide; 1-2 parts of an anti-aging agent; 1-3 parts of a functional auxiliary agent; the antistatic rubber has the advantages that the compression set of the rubber at high temperature is reduced, the antistatic property and the rebound rate of the rubber are improved, the toughness and the hardness are good, serious elasticity attenuation of a rubber roller in the working process is avoided, and the service life of the rubber roller is effectively prolonged.

The invention provides a single-air-duct low-energy-consumption compact spinning system which comprises a negative pressure air bellow of a three-layer structure and a pneumatic self-cleaning rotary dust cage, compact spinning negative pressure and process cotton suction negative pressure share an air duct, and the compact spinning negative pressure and the process cotton suction negative pressure are distributed through a variable-diameter throttling pipe. The upper layer of the negative-pressure air bellow is a negative-pressure bin, the middle layer is a cotton stripping bin, the lower layer is a noil bin, and the negative-pressure bin and the cotton stripping bin are locally isolated by a first partition plate, a second partition plate and a rotary dust cage. A group of impellers are arranged in the rotary dust cage, negative pressure airflow acts on the impellers to drive the rotary dust cage to rotate, an air suction opening of the fan and the air duct form an airflow channel, the cotton stripping bin and the noil bin are free of airflow inlets and form a constant-pressure bin, and fibers on the surface of the rotary dust cage enter the cotton stripping bin, are stripped off by the cotton stripping scraper blade and are transferred into the noil bin. The cotton stripping bin and the noil bin are separated through the fixed partition plate and the movable partition plate, and when the noil bin is opened to take out waste cotton, the negative pressure of the negative pressure bin is not affected.

The invention relates to the technical field of fiber blending equipment, in particular to acrylic fiber blending equipment. The acrylic fiber blending equipment comprises a mounting assembly, a yarn outlet assembly, a yarn guide assembly, a humidifying and drawing assembly and a winding roller. The yarn guide assembly can be used for gradually gathering various fibers including acrylic fibers, uniform mixing of the various fibers is effectively achieved, the various fibers are pre-wetted and accurately wetted, it is ensured that the fibers keep proper humidity in the drawing process, static electricity and friction are reduced, the entanglement phenomenon is reduced, mixing uniformity is improved, and meanwhile, the yarn guide assembly is suitable for being used in the drawing process. A plurality of fibers before drawing can be effectively drawn, a certain tension can be kept, so that the phenomenon of uneven mixing caused by fiber entanglement is reduced, the inflow amount of humidifying airflow is dynamically adjusted according to the thickness and moisture requirements of the drawn fibers, it is ensured that the fibers are treated under the proper moisture degree, the situation that the performance of the fibers is affected by excessive moisture is avoided, and the quality of the drawn fibers is improved. And the binding force between different fibers is effectively improved.

The invention belongs to the field of drafting rubber rings for spinning, and particularly provides a rubber ring and a preparation method thereof.The rubber ring is characterized by comprising an inner rubber layer, a reinforcing layer and an outer rubber layer which are sequentially compounded from inside to outside; the outer rubber layer is prepared by mixing the following raw materials in parts by weight: 90-100 parts of rubber, 10-20 parts of phenolic resin, 2-3 parts of an anti-aging agent, 2-3 parts of an accelerant, 5-8 parts of sulfur, 2-3 parts of zinc oxide, 0.5-2 parts of stearic acid, 3-5 parts of talcum powder, 2-5 parts of a modified copolymer and 3-5 parts of lignosulfonate; the modified copolymer is a copolymer of sulphobetaine methacrylate and glycidyl methacrylate; the prepared upper rubber ring outer rubber layer is good in drafting spinning stability, and the problem of sticky spots can be solved.

The utility model discloses a mechanical compact spinning gathering block beneficial to spinning stability. Two slopes are arranged on the left and the right of the two sides of a gathering groove of the gathering block close to a drafting rubber roller, and oblique angles are formed between the slopes and the axis of a front roller shaft. The utility model has the advantages that by optimizing the design of the gathering block, the influence of foreign matter adhesion and fibers on the position of the gathering block is reduced, the influence of foreign matter adhesion on the steady-speed operation of the rubber roller is reduced, and the spinning is stable.

The invention discloses a roving controllable feeding spinning device and a roving controllable feeding spinning method, and relates to the technical field of spinning. The method comprises the following steps that S1, roving is prepared, and a spinning device is arranged, specifically, the roving obtained through opening, carding, preliminary drafting and other working procedures is fed into the spinning device, the spinning device comprises a plurality of rollers and rubber covered rollers, and the front rollers and the rear rollers are connected through a coaxial driving device to ensure that the front rollers and the rear rollers synchronously rotate at the same rotating speed; a device used by the roving controllable feeding spinning method comprises a frame, a driving mechanism is arranged on one side of the upper portion of the frame, an adjusting mechanism is arranged on the other side of the upper portion of the frame, and a cleaning mechanism is arranged on one side of the lower portion of the frame. According to the roller shaft cleaning device, the outer surface of the roller shaft can be cleaned through reciprocating movement of the first brush and the second brush, dirt and impurities attached to the surface of the roller shaft can be removed by cleaning the surface of the roller shaft, it is ensured that equipment is in the optimal working state, and therefore abrasion can be effectively reduced, and the service life of the roller shaft is prolonged.

A spinning machine (1) is provided with a drafting device (5), a spinning device (6), a take-up device (9), and a capture device (32). The drafting device (5) draws the fiber bundle (10). The spinning device (6) twists the fiber bundle (10) drafted by the drafting device (5) to generate a yarn (15). The winding device (9) performs a winding operation of winding a yarn (15) to form a package (18). The capturing device (32) captures the yarn (15) fed from the spinning device (6) and moves the yarn (15) to a target position. The drafting device (5) is provided with a front roller (51) disposed at the most downstream in the fiber advancing direction. When the winding operation is started, in a state that the front roller (51) rotates at a first speed, the capturing device (32) starts a capturing operation for the yarn (15) generated by the spinning device (6) through yarn output spinning. After the capturing device (32) starts the capturing operation and before the capturing device (32) reaches the target position, the front roller starts to accelerate.

The invention relates to the technical field of spinning equipment, in particular to a spinning drafting assembly which comprises a base frame and a lifting frame arranged on the base frame, a lower roller is arranged on the base frame, a front roller and a rear roller are arranged on the lifting frame, and a plurality of opening drafting rollers are arranged in the middle of the lifting frame. Spinning yarn is attached to the outer edge of the lower roller and the outer edge of the opening drafting roller in an attached mode, spinning drafting operation is completed in the mode that the attaching distance is gradually reduced, the extensibility of the spinning yarn in the transverse direction or the longitudinal direction is enhanced, and a limiting mode of traditional clamping drafting is not adopted. Meanwhile, when the yarn is stretched under slight tension fluctuation, the first spring on the corresponding side can be stressed and compressed, that is, the spring drives the movable yarn guide wheel to slide in the sliding groove, the snakelike shapes of the original movable yarn guide wheel and the fixed yarn guide wheel are respectively released, the spun yarn is lengthened on a drafting path, and the yarn breaking condition is avoided.

Provided are a calculus spinning device and method for producing wrapped-core yarns. The calculus spinning device includes a feeding unit, an auxiliary core-wrapping unit and a yarn winding unit. The feeding unit includes: a staple fiber feeding unit, configured to stretch a roving into a staple fiber strand and feed the staple fiber strand into the auxiliary core-wrapping unit, and a core yarn feeding unit, configured to feed a core yarn into the auxiliary core-wrapping unit. The auxiliary core-wrapping unit includes: an auxiliary core-wrapping assembly; a pressurizing / conveying assembly, configured to provide pressure or power to the auxiliary core-wrapping assembly; a yarn guiding assembly, disposed between the auxiliary core-wrapping assembly and the yarn winding unit; and a wrapping area for wrapping and converging.