70results about "Artificial filament support" patented technology

The application relates to the field of nylon fiber processing, and discloses a preparation device for high-strength nylon fibers, which comprises a cleaning chamber, a drying chamber fixedly connected to one side of the cleaning chamber, a cleaning mechanism arranged in the cleaning chamber, a drying mechanism arranged in the drying chamber, a tension control mechanism arranged at the middle part of the right end of the drying chamber, a broken wire alarm mechanism arranged at the upper side of the right end of the drying chamber, two fixing tables of the cleaning mechanism, the fixing tables being fixedly connected to the inner sides of the cleaning chamber, and rotating rings movably connected to the inner side ends of the fixing tables. The cleaning mechanism and the drying mechanism are added, the nylon fibers can be strongly cleaned before being stretched, the dirt remaining on the surface can be removed, the drying mechanism can gradually heat and dry, the internal structure of the material can be prevented from being damaged, the nylon fibers can be preheated, the stretching performance and the plasticity of the nylon fibers can be improved, and the strength of the finished product can be improved.

The utility model discloses a collecting roller for chemical fibers, and relates to the technical field of collecting rollers for chemical fibers, and the collecting roller is technically characterized by comprising two bearing plates, L-shaped plates are fixedly connected to the front side and the rear side of one of the bearing plates, and a pushing mechanism is fixedly connected to one side of each L-shaped plate; the cleaning device has the technical effects that the starting and stopping time of the hydraulic rods is set through the control panel, then the connecting plates are distributed and attached to one sides of the fixing blocks, the screws are rotated to fix the connecting plates, the cleaning brushes are fixed, the cleaning efficiency is improved, and the cleaning effect is improved. When the preset starting time is up, the control panel controls the hydraulic rods to be started, so that the cleaning brushes move on the surfaces of the collecting roller bodies in parallel, foreign matter and impurities on the surfaces are cleared away through the cleaning brushes, the impurities and the foreign matter on the surfaces of the collecting roller bodies can be cleared away automatically and regularly, and the cleaning efficiency is improved.

This application belongs to the technical field of drying and setting equipment, and discloses a uniform heat drying and setting device for polyester yarn. It includes a box body, a column installed on the bottom of the box body, a first fixed plate and a second fixed plate respectively disposed on both sides of the box body, a feed roller disposed on the first fixed plate, a take-up roller disposed on the second fixed plate, a hot air blower disposed on the box body, an air duct connected to the hot air blower, and a heating plate disposed inside the box body. A placement groove is formed on the side wall of the box body, and a sealing groove is formed on the inner top wall of the placement groove. A baffle plate is slidably disposed within the sealing groove, and a fixing component is provided on the baffle plate for fixing the baffle plate. This application effectively reduces the difficulty for workers to pass polyester yarn through both sides of the box body.

The present disclosure relates to an apparatus for in-line drying of selectively permeable hollow fiber membranes. The present disclosure also relates to a continuous process for in-line drying of selectively permeable hollow fiber membranes using the device.

The invention relates to a spinning stretching device, which can restrain air flow in a heat preservation box from becoming uneven in the axial direction of a heating roller under the condition that a plate-shaped component is arranged in the heat preservation box of the spinning stretching device. A plate-like member (41) is provided which protrudes forward from the rear surface of the incubator, the front surface of which serves as the door section (27), and which is disposed so as to be separated from the door section (27) in a closed state. A gap between the front end of the plate-shaped component (41) and the door part (27) in the closed state is blocked by a sealing component (61). As a result, the air flow in the axial direction (front-rear direction) of the heating roller can be prevented from becoming uneven.

The invention relates to the technical field of para-aramid fiber production, in particular to a high-strength para-aramid fiber production device and process. A high-strength para-aramid fiber production device comprises a rack, a U-shaped yarn guide frame with a forward opening is arranged at the front end of the rack, a sealing cover is arranged at the top end of the rack in an up-down rotating mode, the yarn guide frame and the sealing cover can define a closed drafting cavity, the yarn guide frame comprises a rear plate connected with the rack, and side plates are arranged on the left side and the right side of the rear plate respectively. A comb-shaped yarn guiding opening is formed in the upper end face of the side plate, a hot tension roller set is arranged in the drafting cavity, a second motor for driving the hot tension roller set to rotate is arranged at the rear end of the rack, and a heating plate is arranged on the sealing cover. The high-strength para-aramid fiber production device is convenient to operate, good in heating stability and good in drafting effect, and the high-strength para-aramid fiber is finally obtained in cooperation with the para-aramid fiber production technology of two times of drafting.

The arrangement (100) includes a transfer device (101) for receiving material (102) from a material output (104) to an input area (103) of the transfer device and for transferring the material in a first direction (107) in a plurality of lines (105A, 105B, 105C) from the input area (103) to an output area (106) of the transfer device. The material is heated (108) to dry the material during transfer. The configuration includes a coolant supply device (109) for providing coolant (119) to at least one first portion (110) of at least one first line (105A) of the transfer device, wherein the one first portion (110) of the one first line (105A) is free of material or has less material than at least one second portion (111) of the at least one first line (105A) or at least one second line (105B) in order to control the temperature profile of the transfer device (110) in a predetermined manner.

The invention discloses a short fiber continuous production line capable of switching processes in the technical field of spinning short fiber processing, which comprises a feeding frame, a yarn guide frame, a water bath pool, a steam box, a conveying belt, a swinging hopper, a swinging vehicle, a feeder and a yarn cutter, so that a complete production line capable of processing short fibers is formed, and tows are used as raw materials and are directly drawn and stretched, so that the short fibers can be processed. A plurality of tows are uniformly drawn and stranded, the tows are bundled and spread into flat sheet-shaped filaments, then the flat sheet-shaped filaments are conveyed and soaked, meanwhile, a steam box and a crimping machine are additionally arranged for processing, finally, the tows subjected to secondary processing are dried, finally, the flattened and dried tows are stretched, and finally, the tows are cut off through a shredding machine. In addition, according to different tows, production lines do not need to be replaced, the device can directly switch production processes according to different types of tows, and adjustment is flexible and convenient.

The application discloses a polyacrylonitrile dry-jet wet spinning original filament coagulation forming production conveying device and method, and particularly relates to the polyacrylonitrile production technical field, and comprises a coagulation bath tank, a guide roller is rotatably installed at one side of the top of the coagulation bath tank; a first conveying mechanism is installed at the bottom of the coagulation bath tank and at one side of the guide roller, and the original filament bundle is limited in the coagulation bath tank through the first conveying mechanism to complete coagulation. The original filament bundle is actively rotated and guided and limited in the coagulation bath tank through the first conveying mechanism, the original filament bundle can be fully contacted with the coagulation liquid in the coagulation bath tank to complete the coagulation operation, power is transmitted to the second conveying mechanism through the linkage mechanism, the first conveying mechanism and the second conveying mechanism form an original filament bundle conveying system, the reciprocating pulling of the coagulated original filament bundle is completed through the second conveying mechanism, and the continuous reciprocating outward pulling of the original filament bundle is completed to complete conveying.

The invention relates to a thermoplastic air fiber forming body production system and a forming method, and belongs to the field of vehicle accessories. According to the technical scheme, the thermoplastic air fiber forming body production system comprises a spinning device and a setting device, and a thickness and width forming assembly and a traction assembly below the thickness and width forming assembly are arranged between supports of the setting device. The thickness forming assembly drives a first elastic pressing plate to adjust the distance through a first telescopic mechanism set, the width forming assembly adjusts the distance through a moving roller, and the thickness forming assembly and the width forming assembly conduct up-and-down cooperative shaping. During working, the spinning device continuously sprays fibers, the speed is fed back to the control system through laser speed measurement, the system controls the two assemblies to dynamically adjust according to preset formed body slicing parameters, and the traction assembly continuously pulls fibers to move downwards. According to the scheme, on-line continuous production is achieved, cutting or hot pressing or bonding is not needed, products of the gradient structure can be directly manufactured, the period is shortened, product structure continuity is guaranteed, and efficiency and integrity are improved.

Methods and systems for producing a collagen biopolymer fiber dissolve clinical-grade collagen in an acid solution to form a collagen solution and extrude the collagen solution into a formation buffer bath to form a plurality of sub-fibers at a fiber formation speed. The sub-fibers are combined together to form a starting end of a collagen fiber that is attached to a pulley arm positioned above a horizontal processing facility. The pulley arm feeds the collagen fiber into the horizontal processing facility by moving across the horizontal processing facility at a fiber feeding speed equal to the fiber formation speed.

The utility model discloses spinning production equipment for cationic dyeable polyester pre-oriented yarn, and relates to the technical field of spinning production. Comprising a spinning machine body, the spinning machine body is provided with a winding mechanism used for spinning production of cation dyeable polyester pre-oriented yarn, tows passing through an adjusting assembly enter a winding assembly, a movable block slides on a sliding rod, a protruding block is arranged in the movable block and slides along an annular groove in a reciprocating lead screw, and the movable block can slide along the annular groove in the reciprocating lead screw. The movable block slides along the sliding rod through the reciprocating lead screw, then the movable rod and the wobble wheel are driven to do reciprocating motion, a rubber ring on the edge of the wobble wheel makes contact with a tow, in the reciprocating motion process of the wobble wheel, the tow is evenly wound around the winding shaft, and the limiting rod can limit the position of the tow to a certain degree; the tows are prevented from falling off from the wobble wheel, the problem that the tows are stacked, overlapped or irregularly wound on the winding shaft is solved, and the winding quality and appearance are improved.

The invention discloses a system and a process for uniformly densifying and drying polyacrylonitrile carbon fiber precursors, and relates to the technical field of carbon fiber production. Each hot roller is independently driven and independently subjected to steam control, and the hot roller temperature control system, the fiber tension control system, the drying room temperature control system and the drying room humidity control system are additionally arranged; therefore, a uniform and stable drying environment is formed in the drying room, the drying room has proper humidity which gives consideration to moisture evaporation and internal macromolecular chain movement, the roller surface temperature of each hot roller can be flexibly adjusted according to the temperature difference requirement, and the roller surface temperature is uniform in the effective length direction of the hot rollers; the fiber tension of each hot roller can be flexibly adjusted according to different required filament bundle tensions, and the deviation of the fiber tension among the rollers is greatly reduced, so that the water-containing polyacrylonitrile carbon fiber precursor filament bundles which enter a drying room and sequentially pass through the hot rollers can be uniformly densified and dried, and the polyacrylonitrile carbon fiber precursor with enhanced mechanical properties is obtained.

The utility model relates to the technical field of chinlon monofilament processing, and discloses a spinning device for chinlon monofilament processing, which comprises a heat setting device and a winding device which are arranged on a workbench, the winding device is composed of a motor and a winding roller, the winding device and the workbench are provided with driven parts for assisting the winding roller in splitting, and the driven parts are connected with the heat setting device and the winding device. According to the spinning device for nylon yarn processing, through the arrangement of the driven part and the winding device, after winding of the winding roller is completed, the spinning device can abut against the pressing roller and push the swing rod to swing, and therefore the clamping block can be controlled to relieve limiting of the winding roller, and under the effect of the supporting spring, the winding roller can be driven to rotate, and the spinning device can be used for spinning nylon yarn processing. The tray drives the winding roller to move upwards, so that the winding roller is separated from the connecting shaft, the winding roller stops rotating and winding, a worker only needs to turn off the motor and take away the winding roller, the worker can replace the winding roller conveniently, operation is convenient, and efficiency is high.

The invention discloses composite fiber melt uniform cooling equipment, and relates to the technical field of composite fiber production, the composite fiber melt uniform cooling equipment comprises a cooling box body, a connector and a multi-stage cooling system, the connector is fixedly mounted at the top of the outer wall of the cooling box body, and the multi-stage cooling system is mounted in the cooling box body; the multi-stage cooling system comprises a guiding assembly, a partition cooling assembly and a shaping and guiding-out assembly. According to the multi-stage cooling system, the multi-stage cooling compensation function on the fiber melt silk yarn is achieved, the problems that the silk yarn is adhered and broken and the surface quality is poor due to the fact that the fiber melt silk yarn cannot be subjected to multi-stage distributed cooling are solved, and the production quality of the fiber melt silk yarn is improved.

The utility model discloses spinning equipment for producing high-moisture-absorption composite fibers, which comprises an equipment main body and a feeding bin arranged at the upper end of the equipment main body, a heating bin is arranged in the equipment main body to heat raw materials, a spinning nozzle is arranged on the lower side of the heating bin to spray out the fused raw materials in a filamentous form, and the feeding bin is arranged in the equipment main body. A yarn guide disc is arranged on the lower side of the spinning nozzle to guide the trend of the silk yarn, a winding roller is arranged on one side of the yarn guide disc to wind the silk yarn, the winding roller and the spiral groove are installed, the spun silk yarn passes through the spiral groove in the winding roller, and if the silk yarn is broken in the winding process, the silk yarn is restrained by the spiral groove, so that the silk yarn is prevented from being broken. The broken end position can be wound by the spiral groove, so that a worker can directly find the broken end position of the silk thread in the winding roller area when finding the broken silk thread, and as the broken silk thread position can be quickly found, the operator can quickly carry out thread continuing operation, the overall production efficiency is improved, and the downtime caused by the broken silk thread is reduced as much as possible.

The invention discloses a simple high polymer fiber wet spinning method based on substrate linear pre-construction and liquid phase interface stripping. The method comprises the following steps: (1) dissolving a high polymer material in an organic solvent, and stirring to obtain a precursor solution; (2) selecting a substrate having a weak adhesion characteristic with the precursor solution obtained in the step (1), and spreading the precursor solution on the surface of the substrate in a linear strip shape to form a linear liquid film; (3) quickly immersing the substrate attached with the linear liquid film into solidification liquid, and solidifying to obtain primary polymer fibers; and (4) carrying out heat treatment on the primary polymer fiber obtained in the step (3) to obtain the polymer fiber. According to the method provided by the invention, the high polymer fiber is rapidly and simply prepared under a mild condition by utilizing the interfacial compatibility difference between the solution and the substrate.

The utility model discloses a yarn guide mechanism of a spinning machine for composite fibers, and relates to the technical field of spinning machines. The yarn guide mechanism of the spinning machine for the composite fibers comprises two groups of yarn guide plates, a cleaning plate and a mounting block; the number of the cleaning plates is two, and cleaning spaces are formed in the opposite faces of the two cleaning plates. A limiting round rod and a U-shaped connecting plate are arranged on the mounting block, and the limiting round rod is used for connecting the U-shaped connecting plate with the mounting block. According to the yarn guide mechanism of the spinning machine for the composite fibers, through the arrangement of the cleaning plate, impurities adhered to the surfaces of the composite fiber yarns can be cleaned when the composite fiber yarns are conveyed, so that the situation that the impurities adhered to the composite fiber yarns affect subsequent processing of the composite fiber yarns can be avoided, and the practicability of the device can be improved; and through the arrangement of the U-shaped connecting plate, the two groups of wire guide plates can be connected, so that the connecting mode is relatively simple, the operation of workers is facilitated, and the practicability of the device is improved.

The invention provides a multi-spindle-position spinning device with an anti-winding structure, which comprises a supporting seat, a spinning mechanism, an anti-winding mechanism and a tensioning assembly, the supporting seat comprises a transverse bottom plate and a vertical supporting frame fixedly connected to one end of the transverse bottom plate, the spinning mechanism comprises a wire outlet assembly and a wire winding assembly, and the anti-winding mechanism is arranged on the transverse bottom plate. The vertical supporting frame is installed on the transverse bottom plate, the wire outlet assembly is installed on the vertical supporting frame, the wire winding assembly is installed on the transverse bottom plate, the anti-winding mechanism is installed on the transverse bottom plate and comprises a second supporting plate, and a position adjusting assembly is arranged between the second supporting plate and the transverse bottom plate. By means of the spinning device, it can be ensured that the spinning path is stable, mutual winding of multi-spindle spinning is avoided, winding is finally completed through the silk spindles, and the efficient spinning effect that raw material precise spinning, the stable path and winding are finally avoided is achieved.

The invention discloses a wig hair cooling device for wig production, and belongs to the technical field of wig production, the wig hair cooling device for wig production comprises a cooling pool, an upper guide roller, a lower guide roller set, a support, a connecting end cover, a hollow roller and a mounting block, and one side of the mounting block is fixedly connected with comb teeth; and the comb tooth driving unit is arranged on the support and is used for driving the two mounting blocks to synchronously and reversely move when the hollow roller rotates. According to the device, the wig is guided and immersed in the cooling pool through the upper guide roller and the lower guide roller set, the hollow roller rotates, the comb teeth rotate downwards and make contact with the wig, and when the comb teeth rotate downwards, the two mounting blocks synchronously move in the opposite directions, so that the comb teeth on the two mounting blocks stir the wig in the two opposite directions, on one hand, the comb teeth on the two mounting blocks can rotate in the opposite directions, and on the other hand, the comb teeth on the two mounting blocks can move in the opposite directions. On the other hand, through combing of the comb teeth, the phenomenon that the wig is wound due to buoyancy of cooling water is reduced to a certain extent.

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 invention discloses a yarn guide device based on distributed sensing and self-adaptive intelligent regulation and control and a tension monitoring system, relates to the technical field of chemical fiber manufacturing, and is suitable for high-speed spinning production of POY (pre-oriented yarn), FDY (fully drawn yarn) and the like. Aiming at the defects of monitoring lag, large error and dependence on manpower in the prior art, the system comprises a guide wire device body and an intelligent monitoring regulation and control system: the guide wire device body takes an aluminum oxide-silicon carbide composite ceramic substrate as a substrate, and an FBG distributed sensing array is integrated to realize tension in-situ high-precision detection (the error is less than or equal to + / -0.5%); the intelligent monitoring regulation and control system recognizes eight types of working conditions based on transfer learning and a self-adaptive SVM model through multi-parameter acquisition and feature fusion extraction, is integrated with a PLC system to complete automatic regulation and control of abnormity, and is assisted by graded alarm and 24-hour self-calibration functions. The full-process intelligent closed loop of the spinning tension is realized, the fiber quality consistency and the production efficiency are improved, the energy consumption and the maintenance cost are reduced, and the method is adaptive to the global monitoring of a multi-spindle production line.

This utility model relates to the technical field of woven bag processing equipment, specifically disclosing a drawing device for processing plastic woven bags, including a base and a cooling and drying mechanism. The cooling and drying mechanism is arranged above the base, and a tensioning and winding mechanism is arranged on one side of the cooling and drying mechanism. The cooling and drying mechanism includes a box, and a partition is connected inside the box. The two sides of the partition are a cooling chamber and a drying chamber, respectively. A top plate and a support are arranged above the cooling chamber and the drying chamber, respectively. Two connecting pipes are symmetrically connected to the top of the inner side of the support, and a hot air fan is connected above the connecting pipes. The tensioning and winding mechanism includes a U-shaped frame, and a first telescopic rod is connected to the lower middle of the U-shaped frame. A vertical plate is arranged on the side of the first telescopic rod away from the box, and a second telescopic rod is connected to the lower side of the vertical plate away from the winding shaft. This device has a drawing and drying function, which can prevent residual water droplets on the drawing from falling to the ground and ensure the cleanliness of the drawing operation environment.

Apparatus (1) for producing a nonwoven fabric comprising a spinneret (2) and a mechanical drawing device (5) which comprises primary rollers and secondary rollers (21, 22) which are constrained to a frame (50) such that, considering a condition of use, said secondary rollers (21, 22) are movable with respect to said primary rollers (11, 12, 13) between a first position of operational disengagement from said filaments (3), and a second drawing position of said filaments (3).

The invention relates to the technical field of fiber production, and discloses a flame cotton fiber production filament dividing-filament arranging-carding integrated device which comprises a filament arranging box and a net-shaped conveying belt arranged on the inner side of the filament arranging box, one end of the filament arranging box is provided with a carding machine, and the upper portion of the other end of the filament arranging box is communicated with a filament dividing box; a pair of feeding rollers is arranged at the upper end of the inner side of the yarn separating box, and a yarn separating needle roller is arranged below the feeding rollers; an adsorption mechanism is arranged in the filament arranging box and comprises an adsorption box arranged on the inner side of the net-shaped conveying belt, a draught fan is arranged on one side of the filament arranging box, and an air inlet of the draught fan communicates with the adsorption box. According to the device, the flame cotton fibers subjected to filament separation can be dried under the action of the drying mechanism, the problem of continuous adhesion of the fibers caused by moisture or colloid can be solved, then the fibers carry the same charges under the action of the discharging mechanism, and the fibers can be thoroughly disassembled into more dispersed units through charge repulsive force; the fibers are uniformly laid in the preset direction, and local gathering is avoided.

The invention discloses a high-mechanical-property low-melting-point polyamide POY fiber and a preparation method thereof, and belongs to the technical field of chemical fiber manufacturing. The POY fibers are prepared by compounding low-melting-point polyamide fibers with different melting points and conventional polyamide fibers, and the method comprises the following steps: melting dried low-melting-point polyamide slices and conventional polyamide slices through two independent screw extruders, and extruding through a parallel composite spinning assembly to form parallel nascent fibers; and winding to obtain a pre-oriented yarn (POY). The average breaking strength of the prepared polyamide POY fiber with high mechanical property and low melting point is 3.37 cN / dtex, and the average elongation at break is 41.56%. The method effectively solves the problems of many broken ends, many broken filaments, poor spinnability, low breaking strength and the like caused by high heat sensitivity and poor melt strength in the spinning process of low-melting-point polyamide, and the prepared fiber has high mechanical property, meets the requirement of subsequent processing on the mechanical strength of the fiber, and is suitable for the fields of non-woven fabrics, composite materials and the like.

The invention discloses an ecological chinlon composite fiber yarn processing technology and equipment, and belongs to the technical field of ecological chinlon composite fiber yarns. Aiming at the problems of easy deviation and winding during fiber conveying, complex take-out of a wind-up roller, inconvenience in fiber feeding and the like of existing equipment, a conveying assembly of the equipment is flexible in guiding, the position of a limiting guide wheel can be quickly adjusted by rotating an adjusting screw to adapt to different numbers of fibers, and the limiting guide wheel can be integrally moved upwards to facilitate feeding; the winding assembly is convenient to operate, braking can be relieved by starting a first servo motor, and after a sliding supporting frame is transversely moved, a protective cover is opened, and a winding roller is taken out; and winding driving is stable, and a second servo motor is started to drive a winding roller to rotate. And due to the design of the winding assembly, the winding roller can be taken out and installed more easily and conveniently, and the guide assembly has high flexibility. The U-shaped pushing block is driven to transversely move by rotating the adjusting screw, clamping on the sliding transverse plates can be relieved, the two sliding transverse plates are made to be away from each other under the action of the tension spring, and then the limiting round rod is moved out of the limiting round hole.

The utility model discloses a feeding stopping device capable of automatically stopping production of polyester-nylon composite superfine fibers. The feeding stopping device comprises a feeding stopping frame, an energy consumption braking mechanism and a driving mechanism. Guide cylinders are respectively arranged on the left side and the right side of the feeding stopping frame; the energy consumption braking mechanism comprises sliding grooves, sliding blocks, fixing seats, an ejector rod, a distance adjusting frame, a part mounting frame and a wire guide roller, the sliding grooves are formed in the upper surface of the feeding stopping frame, the sliding blocks are slidably connected into the four sliding grooves respectively, the upper surfaces and the lower surfaces of the four sliding blocks are fixedly connected with the fixing seats respectively, and the ejector rod is arranged on the ejector rod. The interiors of the eight fixing seats are rotationally connected with ejector rods correspondingly, the upper ends of the four ejector rods on the upper side and the lower ends of the four ejector rods on the lower side are rotationally connected with a distance adjusting frame correspondingly, and the feeding stopping device for automatic stopping of polyester and nylon composite superfine fiber production is good in braking effect and does not break polyester and nylon composite superfine fibers in the braking process.

The utility model discloses a drafting device for producing chemical fibers of non-woven products, which comprises a bottom plate and a tensioning frame, one side of the top of the bottom plate is connected with a traction frame, two groups of rollers are rotatably connected in the traction frame through bearings, the other side of the top of the bottom plate is connected with a rolling frame, and a heating component is arranged between the rolling frame and the traction frame. An external motor is started to work to drive the winding drum to rotate to wind chemical fibers, the chemical fibers are drafted under winding pulling of the winding drum, after heat emitted by the heating plate is absorbed by the hot roller, the heat is transferred to the chemical fibers when the hot roller makes contact with the chemical fibers, and therefore the chemical fibers are heated, drafting stress is reduced, and the chemical fibers are drafted. When the chemical fibers are heated by the heating roller, the chemical fibers are softened and easily drafted, redundant heat emitted by the heating plate can be dissipated into the heating box when not absorbed by the heating roller, heat preservation is carried out through the heat preservation pad arranged in the heating box, heat loss is effectively reduced, more heat is concentrated on the heating roller and the heating of the chemical fibers, and the heating efficiency is improved.