334results about "Drafting machines" patented technology

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 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 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 invention belongs to the technical field of textile material preparation, and relates to a preparation method of snowflake-shaped slub yarn, which comprises the following steps: feeding a tow A and a tow B into a main interlacer at the same time for stranding, and winding by a winding device through a third godet; before being fed into the main interlacer, a tow A sequentially passes through a pre-interlacer A, a first godet A section, a first hot roller A section, a second hot roller A section, a third hot roller, a fourth hot roller, a secondary oiling device and a second godet; before being fed into the main interlacer, a tow B sequentially passes through the primary oiling device, the pre-interlacer B, the first godet B section, the first hot roller B section, the second hot roller B section, the third hot roller, the fourth hot roller, the secondary oiling device and the second godet. Through a double-tow differential drawing process and hot roller structure innovation, the tow A and the tow B form a bamboo joint structure with different styles, and a unique snowflake particle effect is presented after stranding.

The utility model relates to the technical field of spinning, in particular to a convenient and fast adjusting device for a drafting gauge of a roving frame, which comprises four groups of roller mounting seats sequentially arranged on a roller support along the roving conveying direction, at least one guide groove arranged on a cradle, four leather roller frames arranged in the guide groove in parallel, and a plurality of adjusting blocks arranged on the four leather roller frames, the long-distance brackets correspond to the four groups of roller mounting seats respectively and are fixed on the roller bracket; and the single brackets are fixed on the cradle. According to the utility model, the 45-degree inclined surface of the pushing block is matched with the wedge-shaped strip between the roller mounting seats, and the sliding block is matched with the wedge-shaped groove, so that the height change of the pushing block is the same as the distance change between the adjacent roller mounting seats or roller frames, and the synchronous adjustment of the roller distance and the roller distance can be realized; the position between the leather roller and the roller does not need to be calibrated after adjustment, the efficiency of adjusting the distance between the roller mounting seats is greatly improved, and the efficiency of adjusting the distance between the leather roller frames is improved.

The invention relates to a method for adjusting the basis weight of a sliver (FB) in an integrated drafting unit (1) of a carding machine (K), having an input measuring roller pair (6a, 6b) located upstream of a main drafting zone of the drafting unit and having an output measuring roller pair (15a, 15b) located downstream of the main drafting zone, the basis weight of the sliver (FB) at the input measuring roller pair (15a, 15b) forms a given parameter and the draft multiple of the draft mechanism forms an operating parameter, a change in the basis weight of the sliver (FB) at the input measuring roller pair (6a, 6b) causes a change in the operating parameter in a control unit of the carding machine (K), and the change in the basis weight of the sliver (FB) at the input measuring roller pair (6a, 6b) causes a change in the operating parameter. The change amount of the operating parameter is stored in a controller of the carding machine (K) by means of a pattern or a curve, which is formed by at least two parameters. The invention also relates to a drafting mechanism for carrying out the method.

The invention relates to the technical field of fiber treatment, in particular to pretreatment mixing processing equipment for aramid fiber production, limiting disc bodies are symmetrically and fixedly arranged at the two ends of a guide cylinder, and mixing limiting groove bodies are formed in the annular surface of the outer side wall of the guide cylinder at equal intervals; the mixing limiting groove body and the mixing auxiliary mechanism are used in cooperation to conduct mixing pretreatment on the fiber bundle strips, and the arranged guide iron ring is used in cooperation with the mixing limiting groove body on the outer side of the guide cylinder and the mixing auxiliary mechanism on the front side supporting plate to conduct mixing pretreatment processing on the fiber bundle strips. According to the fiber bundle guide device, the fiber bundle guide plate body and the mixing limiting groove body are matched for use, so that a binding effect can be provided for the fiber bundle guide when the fiber bundle guide is subjected to mixing treatment, the fiber bundle guide is prevented from being scraped and damaged when passing through a feeding opening of a drawing frame, a mixing carding effect is achieved for the fiber bundle guide, and the fiber bundle guide device is suitable for being used in a drawing frame. The problem that multiple strands of fiber bundles are scattered during mixing work is solved.

The invention relates to a device for feeding a textile machine (3) with at least one fiber strip (5) comprising: a longitudinal beam (7) extending along a longitudinal axis (L_7), a guide device (14) for guiding the at least one fiber strip (5) towards the textile machine (3) which is connected to the longitudinal beam (7), a lifting device (18) by means of which the longitudinal beam (7) is linearly height-adjustable relative to the floor (6), and a drive device (31) by means of which the distance of the longitudinal beam (7) from the floor (6) is adjustable, wherein the lifting device (18) has a first support structure (19) which is pivotably supported on the floor (6) via a first bearing element (20) and pivotably connected to the longitudinal beam (7) via a second bearing element (21), and the lifting device (18) has a second support structure (22).which is pivotably supported on the ground (6) via a third bearing element (23) and pivotably connected to the longitudinal beam (7) via a fourth bearing element (24).

The application relates to a combing and drawing combined machine and process for ramie, flax tow and wool fibers, which comprises a plurality of wool type combers, a guide table, a plurality of guide rollers and a drawing machine; the plurality of wool type combers are arranged side by side, the surfaces of the output roller pairs of the wool type combers are provided with a plurality of grooves; the guide table is arranged in front of the plurality of wool type combers; the plurality of guide rollers are correspondingly arranged with the plurality of wool type combers and are rotatably installed between the metal guide rollers; the drawing machine is arranged on one side of the guide table and comprises a rear roller pair, a middle roller, a pressure roller and a front roller pair; the rear roller pair comprises a rear roller and a rear flat roller and forms a rear nip therebetween; the front roller pair comprises a front roller and a front flat roller and forms a front nip therebetween; the combing strips output by the plurality of wool type combers are directly combined and drawn by the drawing machine, and then the output strips are output, the number of subsequent drawing channels can be reduced, the process flow can be effectively shortened, and meanwhile the quality of the output strips can be ensured.

The invention relates to a tensioning device (10) for positioning at least one roller (6) of a spinning unit (200) and / or drawing device (100), comprising: - the at least one roller (6), - at least one belt (1), in particular a running belt, - at least one drawbar (4), wherein the tensioning device (10) is designed and configured to be switched from a functional state to a non-functional state; wherein the functional state is designed to position the at least one roller (6) by the belt (1) being designed and arranged to exert a pull on the roller (6), by the belt (1) being further designed and arranged to encircle a partial area (30) of the roller and a partial area (31) of the drawbar (4) such that a pull is transmitted from the drawbar (4) to the roller (6) by the belt (1);and wherein the non-functional state is characterized in that the tensioning device (10) is designed and configured such that, by pulling on the belt (1), the pull rod (4) is moved for the purpose of removing the belt (1) from the pull rod (4). This optimizes the effort required for repair and subsequent inspection.

The application discloses a kind of carbon nanotube fiber drawing enhancement method and system.The drawing enhancement method includes: providing carbon nanotube fiber, carbon nanotube fiber is twisted state;Carbon nanotube fiber is cabled and is treated, and fiber bundle is obtained;Protonation drawing and coagulation bath treatment are carried out to fiber bundle, and precursor fiber is obtained;Protonation reagent and / or coagulation bath reagent in precursor fiber are removed, and carbon nanotube reinforced fiber is obtained.The drawing enhancement method provided by the application is twisted and is cabled and is treated, after the internal each expansion fiber edge shape of fiber bundle is expanded by strong acid protonation, adaptive effect is generated;During drawing process, make stress more evenly be applied on each fiber, improve the stability in the process of fiber drawing, to realize higher drawing rate and drawing rate, finally significantly improve the mechanical strength and consistency of reinforced fiber, and bring very excellent continuity, very beneficial to the application of carbon nanotube fiber.

This utility model discloses a flexible suction port for a roving blowing and suction cleaning machine. Its structure includes a suction assembly, a suction port, and an adaptive adjustment mechanism. Through the contact of a roller assembly with the surface of the drafting cover plate, it senses changes in the height of the drafting cover plate in real time and drives the suction port to move along a vertical slide rail, dynamically maintaining a constant distance between the suction port and the drafting cover plate to ensure stable waste absorption. The adaptive adjustment mechanism adjusts the height of the roller support through a strip groove and bolts, and combines stackable weights to dynamically balance the roller contact pressure, adapting to different working conditions. This utility model adopts a modular design; the suction port is fixed by clamps for easy disassembly and maintenance; the weight and number of weights are adjustable, improving pressure control accuracy. Its significant advantages lie in automatically adapting to drafting cover plate deformation and track misalignment, reducing manual intervention, and improving cleaning efficiency by more than 60%. It is suitable for various roving frame equipment and has broad industrial application value.

The utility model discloses a kind of drawing frame of adjustable tension, specifically related to drawing frame technical field, including adjusting member for adjusting fibre strip tension and being installed on drawing frame rack;The adjusting member includes the mounting plate being arranged in drawing frame rack, the fixed support is equipped in the bottom of mounting plate, and electric push rod for adjusting the height of fixed support is installed in the top of mounting plate, the main roller is rotatably connected by rotating shaft and is installed in the inside of fixed support.The utility model drives the main roller on fixed support to move up by electric push rod, thereby the tension of fibre strip is adjusted in vertical direction by height adjustment, then by servo motor driving main bevel gear rotates, main bevel gear drives linkage shaft by meshing from bevel gear to drive sub roller to rotate with main roller as center, thereby realize the oblique direction tension adjustment of fibre strip, and realize fine tension adjustment by changing fibre strip winding angle, improve the tension adjustment range of the utility model.

The utility model relates to drawing frame equipment technical field, concretely relates to a kind of drawing frame cotton sliver automatic breaking device, setting front guide wheel, rear guide wheel and deployment wheel to guide cotton sliver wiring, wherein deployment wheel is movably connected on support, can move up and down, and the up-down movement of deployment wheel is driven control by lifting motor. Therefore can adjust the up-down position of deployment wheel by lifting motor, and further adjust the tension of cotton sliver. Deployment wheel is made of metal material, weight is enough big to break cotton sliver, when needing to break cotton sliver, only need to control lifting motor to completely release deployment wheel, deployment wheel falls under the action of its own gravity and can break cotton sliver located in the lower end of deployment wheel, the whole process does not need manual operation of worker, and simple and convenient reaction is fast. Set check valve mechanism on front guide wheel, for preventing front guide wheel rotation, avoid cotton sliver with front guide wheel and rear guide wheel rotation, facilitate cotton sliver to be broken.

The invention relates to the technical field of textiles, in particular to a wool-like structure aerogel blend fiber with high curling performance and a preparation method of the wool-like structure aerogel blend fiber. Comprising the following steps: treating high-elastic polyester fibers with a silane coupling agent, and treating aerogel fibers with plasma to obtain pretreated high-elastic polyester fibers and pretreated aerogel fibers; the pretreated high-elastic polyester fibers and the pretreated aerogel fibers are subjected to opening treatment, carding and drawing in proportion, then a roving procedure, spun yarn drafting, graded heat treatment and airflow puffing treatment are sequentially carried out, and the wool-like structure aerogel blend fibers with the high crimp performance are obtained. According to the wool-like structure aerogel blend fiber with the high crimp performance, the problems that polyester aerogel fibers are poor in crimp stability and insufficient in bulkiness are solved.

The invention discloses a physical modification spinning process based on tussah short fibers, relates to the technical field of textiles, and solves the technical problems that fibers are damaged and high-hardness fibers cannot be treated in an existing technical scheme. The physical modification spinning process comprises the following steps that 1, the tussah short fibers are subjected to humidifying treatment, and the water content of the fibers is stabilized; 2, electrostatic carding is conducted on tussah short fibers through a multi-stage heterogeneous card clothing carding mechanism, the pretreated fibers are carded through the charge effect, and the fibers are directionally arranged; by means of the synergistic effect of eliminating internal stress through humidifying and softening and airflow drafting, the hardness of the final fabric is reduced, and the flexibility index is increased. The tussah silk fabric is soft in hand feeling and skin-friendly, wearing comfort is greatly improved, and the defect that a traditional tussah silk fabric is stiff in hand feeling is overcome. Innovative non-contact airflow drafting effectively releases the internal stress of the fibers, and the problem of fabric shrinkage is fundamentally solved.

The invention discloses a fancy yarn blended by wool and cotton and a preparation method of the fancy yarn, and relates to the technical field of textile, the specific steps are as follows: superfine merino wool and high-quality long stapled cotton / combed cotton are selected, the ratio of the wool to cotton fibers is 1: 1, and scale part denudation or passivation treatment is performed on the wool fibers by adopting a biological enzyme or oxidation method; preparing soft wool; a novel fancy spinning technology is adopted, cotton roving and wool roving are synchronously drafted and spun, and blended yarn of a double-face loop structure with the specified yarn count of 9NM is spun; and dyeing, post-processing, detecting and evaluating the spun yarn. The key bottlenecks of cotton and wool blended products in the aspects of comfort (itching), durability (pilling) and dimensional stability (shrinkage) are systematically solved through the processes of wool softening pretreatment, blending proportion optimization, novel fancy spinning yarn formation optimization, 'inner-cotton and outer-wool 'double-sided structure and mild washing enzyme polishing and finishing, and the key bottlenecks of the cotton and wool blended products in the aspects of comfort (itching), durability (pilling) and dimensional stability (shrinkage) are systematically solved.

The invention relates to a compact spinning lattice apron tensioning device which comprises a negative pressure pipe (1), a tension rod (2) is arranged on the front side of the negative pressure pipe (1), a plurality of tension rod assemblies (3) are arranged on the tension rod (2) left and right at intervals, lattice aprons (4) are arranged at the positions of the tension rod assemblies (3), and each tension rod assembly (3) comprises a tension frame base (3.1). A cylindrical pin (3.2) is arranged on the tension bracket base (3.1), a tension bracket (3.3) is hinged to the cylindrical pin (3.2), and a double torsion spring (3.4) is arranged between the tension bracket (3.3) and the cylindrical pin (3.2). The compact spinning lattice apron tensioning device can effectively solve the problems that an existing compact spinning lattice apron tensioning device is complex in structure, and patterns are prone to being accumulated on the surface.

The present invention relates to an attending device for a ring spinning machine for producing yarn which comprises a supporting structure in which are arranged means (11) for mounting the attending device (1) on the machine displaceable along at least one row of workstations (2) and for moving it along the row of workstations (2) of the machine, service means (SM) for performing service operations at the workstations (2) of the machine and a power supply system and a control system (CS). At least one non-contact sensor (12) of the profile of the surface of the rotating element is mounted in the supporting structure, wherein the non-contact sensor (12) has a sensing area (SA) which is directed outside the ground plan of the attending device (1) and the non-contact sensor (12) is adapted to transmit the data about the sensed profile or is coupled to means for transmitting the data about the sensed profile or can be coupled to means for transmitting the data about the sensed profile.

The utility model relates to the field of textile machinery, and discloses a novel compact spinning gathering device lattice apron tensioning structure which comprises a tension rod, a plurality of tension brackets and a plurality of limiting blocks, the tension brackets are all installed outside the tension rod, the tension brackets are formed by bending steel wires, and the limiting blocks are arranged on the tension rods. A plurality of first notches are evenly distributed in the end face of the bent and formed side of the tension rod, the limiting blocks are installed on the inner walls of the first notches, a plurality of second notches are evenly distributed in the end face of the other side of the tension rod, a plurality of lattice aprons are installed outside the small roller, and the lattice aprons are installed on the inner walls of the second notches. A roller gear is fixedly connected to the inner wall of the small roller, a fixing base is installed on one side of the small roller, and a negative pressure pipe is installed on one side of the fixing base. According to the spinning device, mechanical abrasion is reduced, the whole device is simple in structure, low in cost, high in adaptability and easy to maintain, and the requirements of the textile industry for efficient, low-consumption and high-quality spinning are met.

The invention relates to the technical field of vortex spinning leather rollers, and discloses a vortex spinning leather roller assembly with a self-cleaning function, which comprises a bottom plate, a working frame is fixedly connected to the top of the bottom plate, a driving device is fixedly connected to the surface of the working frame, a spinning leather roller is rotatably connected to the inner wall of the working frame, and a leather sleeve is inserted into the surface of the spinning leather roller. The end of the spinning leather roller is installed at the output end of the driving device, and an installation component is arranged in the operation frame. The mounting component comprises a jack ring, the inner wall of the jack ring is in threaded connection with a threaded rod, the surface of the jack ring is slidably connected with an arc frame, and the surface of the arc frame is fixedly connected with a mounting frame. After the arc frame is adjusted to the corresponding position, the insertion rod is inserted into the inner wall of the insertion hole of the insertion hole ring, the arc frame is limited through the insertion rod, the insertion rod is stably inserted into the insertion hole ring under the action of the spring, and therefore the supporting stability of the arc frame to the cleaning component is improved; and the cleaning part can stably clean the surface of the leather sleeve.

The invention relates to a device for feeding at least one sliver (5), which can be provided by a storage container (4) mounted on a base (6), to a sliver-processing textile machine (3), comprising: a longitudinal beam (7) which extends along a longitudinal axis (L_7) and can be supported on the base (6) via a support assembly (18) and which can be moved parallel to an axis (Z) oriented perpendicularly to the longitudinal axis (L_7); and a guide device (14) for guiding the at least one sliver (5) to the textile machine (3), the guide device being connected to the longitudinal beam (7) and movable in a direction parallel to the longitudinal axis (L_7).

The utility model is suitable for the field of spinning equipment, and provides a spinning roller convenient to replace, which comprises a roller shaft and connecting caps connected with two ends of the roller shaft, wherein the connecting cap is rotatably mounted on the rack; a telescopic connecting part is arranged at the connecting end, connected with the connecting cap, of the roller shaft; a space for placing the telescopic connecting part is formed in the roller shaft; the two telescopic connecting parts synchronously perform telescopic work; the telescopic connecting part is in an extending state in a normal state; and the connecting cap is provided with a through hole which is convenient for the extrusion piece to extrude the telescopic connecting part to generate state switching, so that the roller shaft can be conveniently connected with the connecting cap through the telescopic connecting part capable of synchronously stretching out and drawing back, the roller shaft is further conveniently replaced, the connecting cap does not need to be disassembled in the replacement process, and the replacement efficiency is improved. The step of replacing the roller shaft is simplified, and the workload is reduced.

This method for producing a carbon fiber spun yarn includes performing, a plurality of times, a kneading step for performing a kneading treatment while applying a load to a sliver composed of a plurality of carbon fibers. In the first kneading step (S1), the load applied to the sliver is smaller than the load applied to the sliver in at least one of the second and subsequent kneading steps (S2, S3).

The patent provides a high-efficiency condensing spinning device and spinning method. A condensing pipe is arranged at the front of a drafting system, a condensing opening is formed on the upper side of the condensing pipe, a rotating driving roller is arranged at the lower part of the condensing pipe, a lower condensing ring is sleeved and tensioned between the condensing pipe and the driving roller, left and right horizontal condensing rings in vertical state are arranged on the condensing rings located at the left and right sides of the condensing opening, and an upper stable condensing ring is arranged at the top of the left and right horizontal condensing rings. The lower condensing ring, the left horizontal condensing ring, the right horizontal condensing ring and the upper stable condensing ring form a sliver condensing channel, so that the sliver in the condensing channel is subjected to the horizontal mechanical condensing effect and the horizontal negative pressure condensing effect of the left and right horizontal condensing rings and the longitudinal stable condensing effect of the upper stable condensing ring, thereby effectively improving the condensing effect.

The invention discloses an efficient drafting spinning device and a spinning method. A rear lower roller, a front lower roller are additionally provided with a front rotating shaft, a rear rotating shaft and a rear upper rubber roller which are in gear transmission with a roller shaft through a fixed cross rod, and the front upper rubber roller is provided with a front driving rubber roller and a rear driving rubber roller through a left upper connecting ring piece and a right upper connecting ring piece; a front holding input linear jaw, a middle holding conveying linear jaw and a rear holding output linear jaw are formed between the rear drafting roller and the front drafting roller respectively, stable drafting control over fed short fiber rough yarn is achieved, a middle rotating shaft which is in tight pressing contact with a roller sleeve is additionally arranged on the upper side of a middle lower roller, a middle upper rubber roller adopts corresponding front and rear double rubber rollers, and the middle rotating shaft is provided with a middle rotating shaft which is in tight pressing contact with a roller sleeve. On one hand, stable rear-area drafting is achieved for short fiber roving entering the middle drafting roller pair, extension, retraction and carding arrangement of internal short fibers are achieved for short fiber belts obtained through rear-area drafting, meanwhile, stable output of the short fiber belts from the middle drafting roller pair is achieved, the overall effect of drafting and twisting is improved, and the comprehensive quality of resultant yarn is improved.

The application discloses a mixed pressurizing drafting mechanism for a drawing frame and a control method thereof, and the mixed pressurizing drafting mechanism comprises a roller base, a front press roller base structure, a cradle base, a roller assembly, a top roller hanging structure, an air support assembly and a controller, the front press roller base structure is arranged on the roller base, and the front press roller base structure and a rear press roller assembly are close to each other to clamp a trumpet mouth; the roller assembly is arranged on both sides of the roller base in the width direction and is parallel to the cradle base; the top roller hanging structure comprises a cradle shell, a guide top roller pressurizing assembly and a guide top roller assembly; one end of the air support assembly is rotationally connected to the cradle base, and the other end is rotationally connected to the cradle shell; and the controller is suitable for controlling the guide top roller pressurizing assembly and the top roller pressurizing base assembly to positively pressurize the guide top roller assembly and the top roller assembly respectively, so that the feeding fibers are clamped and drafted. The application also provides a mixed pressurizing control method, which ensures that the guide top roller and the top roller are normally pressurized and the top roller is accurately pressurized.

This utility model discloses a drawing frame suitable for yarn production, including a drawing frame body and an upper wire frame located at the rear. A loading and unloading mechanism is located at the front of the drawing frame body, corresponding to the yarn outlet position of the drawing frame body. The loading and unloading mechanism includes a switching disc, a drive assembly, a loading assembly, and a unloading assembly. A support plate is fixedly connected to the front of the drawing frame body, and a main shaft is rotatably connected to the top of the support plate. The switching disc is fixedly connected to the top of the main shaft. This utility model relates to the field of yarn drawing technology. When collecting the drawn yarn, this drawing frame for yarn production, through the cooperation of the loading and unloading mechanism, allows the collecting cylinder to automatically enter below the yarn outlet. After collection, it automatically switches to an empty cylinder and unloads the yarn when the collecting cylinder rotates to the unloading position. The entire process is automatically completed with high continuity, improving the automation level of the device.

The invention relates to the technical field of slub yarn production, and discloses a semi-worsted high-count cashmere slub yarn production process and equipment which comprises a machine body, two mounting plates are fixedly connected to the top of the machine body, and a rear roller, a middle roller and a front roller are rotationally connected between the two mounting plates. The rear roller and the middle roller are each composed of a plurality of hollow pipes and a plurality of sleeves, each hollow pipe is sleeved with a fixedly-connected sleeve, a mounting ring is rotationally connected between every two hollow pipes, a plurality of exhaust holes are formed in the top of each mounting ring, a steam pipe is rotationally connected into each hollow pipe, an exhaust port is formed in the top of each steam pipe, and the exhaust ports are communicated with the steam pipes. According to the production equipment for the semi-worsted high-count cashmere slub yarn, a continuous and stable temperature and humidity environment is provided for cashmere fibers, static electricity among the fibers is effectively reduced, the softness and the lubricity of the fibers are enhanced, and therefore the drafting stability and the yarn quality in the slub forming process are improved.