638results about "Artificial thread manufacturing machines" patented technology

The invention relates to the field of regenerated fiber production equipment manufacturing and process integration, and discloses a modular intelligent continuous regenerated fiber production line which comprises a sorting and cleaning module, a melt extrusion module, an impurity filtering module, a granulation module, a decoloration module, a solid phase polycondensation tackifying module and a melt spinning module. The self-adaptive material distribution device is used for realizing material connection among the modules; the automatic control system is used for realizing collaborative operation of all the modules; wherein the solid phase polycondensation tackifying module is provided with an intelligent control unit for dynamically optimizing the operation of the solid phase polycondensation tackifying module. Compared with the prior art that each process is relatively independent and depends on manual scheduling or simple linkage, the scheme effectively overcomes the common problems of unsmooth material conveying, unbalanced matching between modules and insufficient automation degree in the traditional regeneration process, and remarkably improves the production continuity and the resource utilization rate.

The invention discloses a melt spinning cooling system which comprises a spinning box, a cooling cylinder section, a first heating assembly, a second heating unit and a recovery part, the first heating assembly outputs trace hot nitrogen, anti-oxidation protection of melt trickles is achieved, the oxidation risk possibly caused by direct contact of a traditional cooling medium is avoided, and the cooling efficiency is improved. Meanwhile, the second heating unit is matched to regulate and control the temperature of the cooling cylinder section, so that the whole-process temperature accurate control from oxidation prevention to high-temperature natural cooling and the high-temperature natural cooling and cold air supply-free operation process are realized, and the solidification orientation length and process of the melt trickle can be actively lengthened by combining gradient process temperature control; different from the defect of insufficient orientation caused by too fast cooling in the prior art, key conditions are provided for optimization of a fiber orientation structure; due to the coaxially stacked cooling cylinder sections and nitrogen recovery operation, a stable cooling environment is constructed, fiber shaking is avoided, the nitrogen utilization rate and the environmental safety are improved, and the process stability and economical efficiency are balanced.

The utility model relates to the technical field of fiber wet spinning equipment, in particular to a water-soluble fiber washing and oiling device, which comprises a washing tank, a plurality of groups of rubbing components are arranged in the washing tank, each rubbing component comprises a yarn supporting rod and a yarn pressing rod, the yarn supporting rods are fixedly arranged in the washing tank, and tows pass through the upper surfaces of the yarn supporting rods. The yarn pressing rod is arranged in the washing tank in a sliding mode through the lifting assembly, and the tows pass through the lower surface of the yarn pressing rod. According to the utility model, the technical problem of poor fiber dispersity caused by poor treatment effect when the existing post-treatment device is used for treating endless tow semi-finished products can be solved.

The invention discloses a continuous spinning path coordination system based on real-time tension regulation and control, relates to the technical field of spinning tension control, and is used for solving the problem of poor continuous path tension coordination regulation. The method comprises a path modeling module, a state acquisition module, a coordination control module and a strategy optimization module, and comprises the following steps: establishing a path structure model from spinning to winding, planning tension measuring points, generating state vectors, identifying drafting section disturbance, winding section disturbance and local friction disturbance, and predicting the tension change of each path node in combination with a tension conduction time delay parameter; a control combination is generated among a drafting drive unit, a winding drive unit, a tensioning unit and a belt drive yarn guide component, cooperative adjustment of an execution unit is achieved, a strategy optimization module establishes a statistical relation between tension and quality based on end breakage and quality detection results, a tension target interval is updated in a self-adaptive mode, and the execution unit adjusts constraints and priorities. The end breakage rate is reduced, and the stability and the product consistency are improved.

The invention relates to a bi-component fiber and a preparation method thereof, polyester melt and polyamide melt are extruded from a spinneret plate side by side, cross air blowing cooling is performed to obtain nascent fiber, and then the nascent fiber is sequentially subjected to heat pipe heating, oiling, pre-interlacing, three-roller drafting heat setting and winding to obtain the bi-component fiber. The heat pipe is used for heating nascent fibers, and the temperature of the heat pipe is 90-100 DEG C; the three rollers comprise a first hot roller, a second hot roller and a third hot roller; the temperature of the first hot roller is 70-90 DEG C, the temperature of the second hot roller is 110-130 DEG C, and the temperature of the third hot roller is 140-160 DEG C; the filament number of the prepared bi-component fiber is 2.6-3.5 dtex, the breaking strength is larger than or equal to 3.23 cN / dtex, the elongation at break is 27.45-38.31%, the number of broken ends is smaller than or equal to 2.3 times / (48 bits. 24 hours), and the broken filament rate is stably controlled to be 0.30% or below. According to the preparation method, generation of internal stress is greatly reduced; the mechanical property of the bi-component fiber is improved, and the number of broken ends and the broken filament rate of the fiber are obviously reduced.

The utility model discloses a spinning window convenient to mount and use, which relates to the technical field of spinning windows and comprises a mounting plate, a spinning machine and a quick mounting mechanism. The mounting plate is rotationally arranged at the front end of the spinning machine, sliding supports are fixedly arranged on the two sides of the mounting plate, a window body is arranged at the front end of the mounting plate, and a quick mounting mechanism used for quickly mounting the window body is fixedly arranged at the front end of the window body. Preliminary installation is achieved through matched insertion of the guide rod and the sliding groove and positioning of the positioning rod and the positioning groove, separation and reunion of the limiting protrusion and the limiting teeth are controlled through the pressing block, the position of the guide rod is adjusted, finally, the limiting protrusion clamps the limiting teeth through the reset spring to complete installation, the installation process is simple and convenient, different installation requirements can be met, and the installation quality is guaranteed. The mounting efficiency is improved.

The utility model discloses meta-position aramid fiber coagulating bath automatic adjusting equipment which comprises a bottom plate, a coagulating bath tank is arranged on the left side of the upper end of the bottom plate, a coagulating bath blending box is arranged at the upper end of the bottom plate, a coagulating bath online concentration meter is arranged on the coagulating bath blending box, and the coagulating bath online concentration meter comprises a detection head. The detection head extends into the coagulating bath blending box, and a bearing plate is arranged on the right side above the bottom plate. The problems that manual water replenishing of an existing coagulating bath is labor-consuming and troublesome, the manual water replenishing mode is prone to causing large concentration fluctuation of the coagulating bath, accuracy and controllability of the coagulating bath cannot be guaranteed, one-time water replenishing can cause too low local concentration of the coagulating bath, the coagulating bath needs a long time to keep stable concentration, and daily use requirements cannot be met are solved. The device has the advantages of automatically replenishing water and accurately controlling the concentration of the coagulating bath, and solves the problems of large fluctuation, untimely adjustment and the like of the conventional coagulating bath.

The present invention is an apparatus and a process for forming a fibrous web comprising continuous filaments, whereby the equipment respectively the process is adapted to be connected to further converting units respectively processing steps in a manufacturing process, whereby at an interruption of any of the further processing steps the filaments made during the interruption are captured for being reused by diverting the produced filaments.

The utility model discloses a device for preparing nanofibers through unpowered high-speed airflow spinning. The device comprises a gas cylinder, a humidity adjusting tank, a gas pipeline, an adjustable ultrasonic humidifier, an unpowered spinning device, a spinning solution pipeline, a solution tank air pressure adjusting valve, a spinning solution tank and a rotary spinning collecting net. The gas cylinder is connected with the humidity adjusting tank, and the humidity adjusting tank is connected with a compressed gas inlet of the unpowered spinning device through a gas pipeline; the humidity adjusting tank is also connected with an adjustable ultrasonic humidifier; an outlet of the spinning solution tank is connected with a spinning solution inlet of the unpowered spinning device through a spinning solution pipeline; a solution tank air pressure regulating valve is further arranged on the spinning solution tank; and the bottom of the unpowered spinning device is connected with the rotary spinning collecting net. The high-speed airflow spinning device can realize high-speed airflow spinning, so that high-efficiency fiber production is realized, molten polymers are quickly jetted into fibers by utilizing high-speed airflow, and the production efficiency and the yield are greatly improved.

The utility model discloses a bundling and drafting device for geotextile spinning and a geotextile production line, the bundling and drafting device comprises a bundling and drafting box, and a first drafting roller unit, a second drafting roller unit and a third drafting roller unit which are arranged in the bundling and drafting box, and the drafting speeds of the three drafting roller units are sequentially increased; each drawing roller unit comprises a plurality of drawing rollers which are parallel to one another, and the three drawing roller units sequentially draw a fiber bundle which is formed by a plurality of fibers and enters the bundling drawing box; therefore, the fiber bundles are mechanically bundled and drafted through the three drafting roller units with the drafting speeds sequentially increased, the fiber drafting process in the spinning process is optimized, in addition, the geotechnical cloth production line provided with the bundling and drafting device can adapt to polyester raw materials with higher viscosity, the tensile strength of the prepared polyester geotechnical cloth is improved, and the production efficiency is improved. And the drafting speed of the polypropylene fibers can be increased, so that the tensile strength of the prepared polypropylene geotextile is improved.

The invention relates to the technical field of fiber production, in particular to an automatic production system for continuous polymerization melt direct spinning polyester fibers. Comprising a spinning box, a spinning channel, a drawing machine and a winding machine, and further comprises a pretreatment mechanism, the pretreatment mechanism is arranged in the spinning channel and used for conducting primary dyeing while cooling nascent fibers, and the pretreatment mechanism comprises an air control assembly arranged in the middle of the spinning channel and a circulation assembly arranged at the bottom of the spinning channel; dye steam enters the spinning channel through the circulating assembly and moves along a preset track through the air control assembly to dye nascent fibers; the dyeing mechanism is arranged between the drafting machine and the winding machine and used for conducting secondary dyeing on the fibers, the dyeing mechanism comprises a dyeing assembly arranged behind the drafting machine and a stranding assembly arranged behind the dyeing mechanism, the dyeing assembly conducts secondary dyeing on the drafted fibers, and the stranding assembly conducts stranding on the drafted fibers. And plying the plurality of fibers by using the plying assembly.

According to the needleless electrostatic spinning solution box, a solution storage tank (03) is arranged in a solution box body, when an electrostatic spinning electrode (04) rotates along with a rotating shaft of the electrostatic spinning electrode (04), the head of the electrode can enter the lower portion of the liquid level from the upper portion of the liquid level of the solution storage tank (03) or rotate to the upper portion of the liquid level from the lower portion of the liquid level; the bottom of the liquid storage tank (03) is provided with a liquid homogenizing tank (01) which is in one-way communication with the liquid storage tank, and a spinning solution in the liquid homogenizing tank (01) comes from a liquid supply pipe (07) connected with the liquid homogenizing tank (01); a scraping plate (05) capable of scraping a residual solution on the electrode head of the rotating electrostatic spinning electrode (04) is arranged at the bottom or the wall of the liquid storage tank (03); residual solution scraped by the scraping plate (05) is collected in a liquid discharging groove (09), and the liquid discharging groove (09) is connected with a liquid pumping pipe (08) capable of discharging the collected solution.

The present invention relates to a flash-spun fabric with low compression ratio, wherein the raw material of the flash-spun fabric comprises polyethylene, and the gram weight of the flash-spun fabric is 35 g / m 2 Above; compression ratio of flash spun fabric is greater than 0.08gf·cm / cm 2 The hygroscopic expansion rate of the flash-spun fabric is 0.2% to 0.4% when the relative humidity is between 33% and 84%. The flash-spun fabric of the present application has a wide range of applications.

The utility model discloses a carbon fiber precursor on-line oiling device which comprises a device shell, a plurality of rollers are rotationally installed on the upper portion in the device shell, and a plurality of oiling pipes are further installed on the upper portion in the device shell. The oiling pipes are respectively distributed outside a carbon fiber precursor bundle surface between adjacent rollers and outside a carbon fiber precursor bundle surface output by the last roller, and each oiling pipe is provided with a plurality of nozzles; an oil chamber is installed on the lower portion in the device shell and divided into an upper portion and a lower portion by a filter screen, the upper portion in the oil chamber serves as an oil receiving groove, the lower portion in the oil chamber serves as an oil storage groove, and the oil storage groove is connected with the upper oil pipes through hoses. According to the fiber oiling device, the utilization rate of an oiling agent is remarkably improved, meanwhile, the phenomenon of wasting of the oiling agent is reduced, and the processing quality and performance of fibers can be improved.

The utility model relates to the technical field of melt spinning, in particular to PBT elastic fiber melt spinning equipment which comprises a machine body, a melt extruder installed on the surface of the machine body, a feeding port formed in the melt extruder, a spinning nozzle arranged on the inner wall of the machine body, a cold air chamber arranged on the inner wall of the machine body, and an auxiliary shaft and a collecting shaft arranged on the surface of the machine body. The surface of the machine body is provided with a channel, the surface of the feed port is provided with an auxiliary device, and the auxiliary device comprises a box body fixed on the surface of the feed port. By arranging the auxiliary device, during feeding, the intercepting net can intercept larger raw materials, and the driving part is matched with the two crushing rollers to crush the raw materials in the crushing chamber; and then the raw materials enter the feeding opening through the material guide pipe to be discharged, so that all the raw materials entering the melt extruder are not too large, the raw materials can be molten more sufficiently and more uniformly during heating and melting, a good melt foundation is provided for high-quality spinning, and the overall practicability is improved.

The invention relates to the technical field of monofilament detection, in particular to an extruded monofilament diameter intelligent monitoring system based on machine vision, which comprises an image acquisition module, a diameter analysis module, an electrostatic prediction module and an intelligent decision module. The image acquisition module acquires monofilament image data in real time, and the diameter analysis module calculates the actual diameter of a monofilament based on an image and compares the actual diameter with a preset standard diameter to obtain diameter deviation. And when the deviation exceeds a threshold value, the static electricity prediction module obtains current extrusion process parameters, and the static electricity accumulation amount is predicted through a preset linear regression model. The intelligent decision-making module makes a decision according to the prediction result; if the static accumulation exceeds a threshold value, the static elimination equipment is started; otherwise, updating extrusion process parameters based on a preset decision optimization model and controlling equipment operation. According to the system, through machine vision and an intelligent algorithm, the problem of diameter detection errors caused by static accumulation in the monofilament production process is effectively solved, and the production precision and efficiency are improved.

The invention relates to the technical field of polyester slub yarns, and discloses a preparation method and device of a gradually-changed section shrinkage polyester slub yarn, and the device comprises a metering pump, a spinneret plate, an oiling device, a first hot roller, a second hot roller, a winding device, a hot roller motor, a programmable controller and a motor frequency converter; the metering pump is installed on the upper portion of the spinneret plate, the spinneret plate, the oiling device, the first hot roller, the second hot roller and the winding device are sequentially arranged along a filament conveying path, the first hot roller and the second hot roller are driven by a hot roller motor to rotate, the first hot roller is provided with a heating module used for adjusting the temperature, and the second hot roller is provided with a heating module used for adjusting the temperature. A hot roller motor of one hot roller is electrically connected with the motor frequency converter; and the motor frequency converter is in signal connection with the programmable controller. The method and the device for preparing the gradually-changed section-shrunk polyester slub yarn have the advantages that the production continuity and stability can be ensured through variable temperature and variable speed of the first hot roller and constant speed of the second hot roller and the winding head, and the like.

The utility model discloses spinning forming equipment based on colored noctilucent pre-oriented yarn, which relates to the technical field of spinning forming equipment and comprises a screw extruder, a stirring mechanism is arranged on the left side of the screw extruder, and a filtering mechanism is arranged between the screw extruder and the stirring mechanism and used for filtering melt. The filtering mechanism comprises a multi-stage filtering unit and a backwashing unit, the multi-stage filtering unit is arranged above the stirring mechanism and comprises a filtering barrel, the multi-stage gradient filtering unit is arranged, a nested filtering net structure is adopted in the filtering barrel, and the aperture of a first filtering net barrel is smaller than that of a second filtering net barrel, so that graded fine filtering of the melt is realized. Agglomerated particles and impurities formed by noctilucent pigment or fluorescent dye in melt can be effectively intercepted, and the blocking risk of the spinneret plate is remarkably reduced. Meanwhile, the filter screen cylinder is detachably installed through the first clamping groove and the second clamping groove, maintenance and replacement are convenient, and it is ensured that the filtering effect is continuous and stable.

The present invention discloses an aerogel fiber having a specific cross-sectional morphology and a method and device for producing the same. The cross-sectional two-dimensional nanosheet arrangement of the aerogel fiber can be adjusted, and the adjustment method is as follows. At the same time as wet spinning, a rotating flow field device is added before the spinning solution fluid is ejected, and the rotating flow field causes the two-dimensional nanosheet to form a specific sheet layer arrangement in the cross-sectional direction of the gel fiber due to the rotational shear action, and the gel fiber having a specific cross-sectional structure is obtained by preparing graphene oxide aerogel fiber having a specific morphological structure (concentric circles and spiral lines) under freeze-drying conditions. The present invention further performs drying and densification, stretching, and reduction on such a hydrogel fiber with a concentric structure to obtain graphene fiber with high elasticity and high thermal conductivity, and improves its thermal conductivity and elasticity compared to conventional graphene fiber.

The invention discloses a polyetherketoneketone fiber anti-adhesion porous spinning method. The method comprises the following steps: dissolving polyetherketoneketone to obtain a spinning solution, and extruding the spinning solution through a porous spinneret plate to form a plurality of spinning trickles; the trickles enter a first coagulating bath to be preliminarily coagulated and formed, and fibers are obtained; dividing the fibers by a split type dividing plate, guiding the fibers into a second coagulating bath by a godet, washing with water, applying oil, and then drying; fibers enter the hot drafting device to be subjected to multi-stage hot drafting, and after heat setting, the fibers are tidied and wound by the buncher. The first coagulating bath is provided with a bath lotion supplementing unit, a circulating filtering system and an ultrasonic generator which are combined to quickly and uniformly update components of the coagulating bath; and the split type filament separating plate keeps a distance between fibers, prevents mutual adhesion and improves the double-diffusion efficiency in the second coagulating bath. The ultrasonic-assisted circulating filtration system is used for updating the synergistic effect of the coagulating bath and the split type filament separating plate, so that the problems that fibers are easy to adhere and are uneven in evenness and performance are effectively solved.

The application discloses a method for preparing silicon carbide ceramic fibers by combining sol-gel and dry spinning. The method comprises the following steps: 1) after preparing a second silicon-based sol, a spinning aid is added to prepare a spinnable silicon-based sol; 2) the spinnable silicon-based sol is prepared into fiber filaments by using a dry spinning process; 3) the fiber filaments are cracked into silicon-carbon-oxygen fibers; and 4) the silicon-carbon-oxygen fibers are sintered into silicon carbide ceramic fibers. The method is different from a mainstream polycarbosilane precursor method for preparing silicon carbide ceramic fibers, does not need a non-melting treatment process, has the advantages of adjustable composition, low raw material cost and simple process and the like, and has important significance for low-cost preparation of silicon carbide ceramic fibers.

The invention relates to the technical field of drawing machines, and discloses a textile processing chemical fiber drying drawing machine which comprises a cooling box, a rotating mechanism is arranged on the cooling box, the rotating mechanism comprises an annular rotating box arranged in the cooling box, and limiting annular grooves are formed in the front face and the back face of the annular rotating box correspondingly; and two L-shaped limiting rods are fixedly installed on the inner wall of the left side and the inner wall of the right side of the cooling box correspondingly, the ends, close to each other, of the multiple L-shaped limiting rods extend into the two limiting annular grooves correspondingly and are matched with the two limiting annular grooves correspondingly, and a plurality of drainage holes are formed in the outer wall of the annular rotating box. The rectangular limiting rod can drive the fixing plate with the holes to rotate, the fixing plate with the holes can drive the water absorption sponge to rotate, centrifugal force can be generated in the rotating process of the water absorption sponge, and the centrifugal force can throw out water adsorbed on the water absorption sponge, so that the continuous water absorption function of the water absorption sponge is kept.

The high-elasticity semi-dull POY polyester fiber spinning equipment comprises a crane, an equipment body, a power piece, a silk yarn, a limiting piece, a winding rod, a worm, a worm wheel, a rotating plate, a moving block, an abutting plate, a switching plate, a threaded rod and a movable plate, the power piece is started to drive the winding rod to rotate, and under the action of the limiting piece, the winding rod is driven to rotate by the rotating plate. The worm, the worm gear and the movable plate are driven to reciprocate, so that the silk yarn is uniformly wound on the winding rod, the worm and the worm gear rotate on the movable block, the threaded rod synchronously doing reciprocating motion rotates at small angles at intervals, the movable plate moves away from the winding rod at intervals, and the situation that the winding thickness of the silk yarn on the winding rod is gradually increased is avoided. The wound silk yarn is in contact with the movable plate; and the pressing plate reciprocates to press the silk thread, so that on one hand, the reciprocating motion of the movable plate is ensured, the silk thread is uniformly wound, and on the other hand, the winding angle of the silk thread on the winding rod is further ensured.

The utility model relates to the technical field of spinning production, in particular to a filter screen filtering device for spinning production, which comprises a support, a positioning plate and a filter element plate, the support is integrally of an I-shaped structure, lateral through grooves are formed in transverse rods on two sides of the support, the positioning plate is mounted on the outer side of the middle of the support, and the filter element plate is mounted on the positioning plate. Side clamping plates are arranged at the upper end and the lower end of the positioning plate, limiting plates are clamped to the inner sides of the side clamping plates, extension plates are arranged on the sides, close to the positioning plate, of the limiting plates, filter element plates are clamped to the inner sides of the extension plates, embedding grooves are formed in the upper end and the lower end of each limiting plate, and the embedding grooves and the side clamping plates are mutually embedded; the problems that in the prior art, when a filter screen filtering device is used for filtering a spinning production environment, a filter element mode is adopted, dust generated in the production process is adsorbed, due to the fact that the phenomenon of filament flying easily occurs in the spinning process, filament flying can be attached to the surface of the filter element, dust cannot enter the filter element, and the filtering and absorbing effect is affected are solved.

The utility model discloses a condensation tank device for chemical fiber spinning, which is mounted at the highest position of a heating system of chemical fiber spinning equipment and comprises a tank support, a condensation tank mounted on the tank support in a suspended manner, and a pressure gauge and a platinum resistor which are mounted on the condensation tank, the condensation tank comprises a first plug, a tank body and a second plug which are coaxially arranged from top to bottom, the first plug and the second plug are connected to the upper end and the lower end of the tank body respectively and form a condensation space with the tank body, an air inlet pipe is connected to the tank body in an inserted mode, an exhaust pipe is connected to the first plug in an inserted mode, and a backflow pipe is connected to the second plug in an inserted mode; the pressure gauge is mounted on the first plug, avoids the exhaust pipe and is used for measuring the pressure in the condensation tank; the platinum resistor is mounted on the second plug and is used for measuring the temperature in the condensation tank; the heating system of the chemical fiber spinning equipment is subjected to temperature monitoring and pressure monitoring, pressure fluctuation is buffered, and the operation stability is improved.

A portable, hand-held electrospinning or electrospraying apparatus and system, method, and portions thereof, comprised of a durable portion of the hand-held apparatus and a consumable portion of the hand-held apparatus. The consumable portion of the hand-held apparatus, which may contain the solution to be output in electrospin or electrospray fashion, may be replaced in whole or in part to provide additional or alternative solution. A base station may be provided, and can output high voltage and communication signals to the hand-held apparatus to enable the electrospin or electrospray operation by the hand-held apparatus.

The embodiment of the utility model provides a device for preventing yarn jumping of an oil nozzle and spinning equipment. The device for preventing the wire jumping of the oil nozzle comprises a wire separator which is of a comb-shaped structure and is used for separating the wire entering the device for preventing the wire jumping of the oil nozzle; the oil nozzle is located on the first direction side of the yarn separator, at least one first yarn guide groove is formed in the oil nozzle, and the yarn is oiled in the first yarn guide groove; the wire jumping prevention part is located on the first direction side of the oil nozzle, the wire jumping prevention part is provided with a second wire guide groove, and the tail of the wire jumping prevention part is of a comb-shaped structure with a barb; wherein the first direction is the direction in which the silk thread enters the first silk guide groove. Therefore, the yarn jumping problem of the oil nozzle is avoided, the waste yarn rate is reduced, and the quality of finished yarn is guaranteed.

The utility model relates to the technical field of chemical fiber production equipment, in particular to a feeding machine doffing protection structure which comprises a feeding machine body and a channel arranged on a floor plate in a penetrating mode, the outer side wall of the feeding machine body is provided with a protection cover arranged on a feeding wheel in a covering mode, and the top wall and the bottom wall of the protection cover are each provided with a tow penetrating opening in a penetrating mode, a protective fence surrounding the channel is arranged between the feeding machine body and the floor plate, and the upper end face of the protective fence abuts against the lower end face of the protective cover. The protective cover and the protective enclosure are additionally arranged, the protective cover covers the feeding wheel, so that the feeding wheel is arranged in a hidden mode, production safety is effectively improved, the possibility that the feeding wheel is polluted is reduced, the protective enclosure encloses the channel, and the upper end face of the protective enclosure abuts against the lower end face of the protective cover. Other impurities are effectively prevented from flying into the tow containing barrel from the feeding port of the channel, and the possibility that tows are polluted is reduced.

The utility model discloses a draw-off godet housing device which is provided with a draw-off godet, a control panel, a yarn suction and cutting device and a pre-interlacer supporting frame, and the draw-off godet housing device comprises a housing body, a first mounting seat and a second mounting seat, and the first mounting seat and the second mounting seat are mounted on the housing body. The housing body is provided with a profiling groove for mounting a yarn guide disc, a first mounting hole for mounting the control panel, a second mounting hole for mounting a yarn suction and cutting device and a third mounting hole for mounting a pre-stitching device supporting frame, the first mounting seat is arranged at the first mounting hole, the control panel is matched with the first mounting seat, and the second mounting seat is matched with the third mounting hole. The second mounting seat is arranged at the second mounting hole, and the suction shredding device is matched with the second mounting seat; an open opening is formed in the front portion of the housing body, the profiling groove penetrates through the pair of side wall faces in the left-right direction, and a groove opening of the profiling groove coincides with at least part of the opening. The third mounting hole is located on the upper side of the profiling groove, and the second mounting hole is located on the upper side of the third mounting hole.

The invention discloses a biphenyl furnace, and belongs to the technical field of biphenyl furnaces. Comprising a biphenyl furnace body, a dual-mode waste heat feedback mechanism and an enhanced heating assembly. A U-shaped heating tube bundle is arranged in the bottom of the biphenyl furnace body; the dual-mode waste heat feedback mechanism is connected with the heating medium outlet and distributes the heating medium through the flow distribution valve group; the intensified heating assembly comprises a heating jacket attached to the bottom of the furnace barrel. According to the biphenyl furnace, the heat medium which is not completely cooled is introduced into the heating jacket or the external heat energy recovery device through the flow distribution valve group, sensible heat is recovered, meanwhile, stepped auxiliary heating is conducted on the dead zone of the furnace bottom, a cold flow layer is eliminated, and the temperature rising rate is increased. Besides, the heating jacket is fixed by adopting an elastic anchoring structure with built-in guide and external suspension, and thermal expansion displacement is compensated by utilizing the pre-tightening force of a spring, so that the problem of stripping failure of a bottom thermal insulation layer is effectively solved, and double improvement of deep utilization of energy and safe operation of equipment is realized.