105 results about "Fiber drawing" patented technology

This invention discloses a method for preparing high rare-earth-doped low-loss boron-containing glass optical fibers. The steps are as follows: weigh glass raw materials containing rare-earth oxides and boron oxide, mix them uniformly, and place them in a high-temperature furnace. First, heat the mixture under a high-purity nitrogen atmosphere, then switch to a high-purity oxygen atmosphere or a high-purity air atmosphere for continued heating. The resulting glass melt is cooled and annealed to obtain a large glass block. The glass is then processed into a preform and placed in an optical fiber drawing furnace for fiber drawing under a high-purity oxygen atmosphere, thus achieving the preparation of high rare-earth-doped low-loss glass optical fibers. This invention eliminates the additional glass matrix absorption in the near-infrared region caused by boron in boron-containing glass optical fibers and also transforms the transition metal impurity ions from a low valence state with broad absorption in the near-infrared region to a high valence state with narrow low absorption in the near-infrared region. Both of these aspects significantly reduce the matrix absorption of boron-containing glass optical fibers, providing possibilities for the application of high rare-earth-doped low-loss glass optical fibers.

The invention provides a method for controlling an impregnating compound on the outer layer of a spinning cake in a glass fiber drawing process, which comprises the following steps of: drawing glass fibers, and forming an impregnating compound on the surface of the glass fibers at a constant first linear speed in the first stage of drawing, reducing the first linear speed to a second linear speed in a second stage of wire drawing to form an impregnating compound on the surface of the glass fiber, and then forming the impregnating compound on the surface of the glass fiber at a constant second linear speed in a third stage of wire drawing until a cylinder is full; in the second stage of wire drawing, the number N of times of reduction of the linear speed from the first linear speed to the second linear speed is larger than or equal to 1. According to the control method provided by the invention, wiredrawing oil coating is directly reduced by adopting a mode of abruptly reducing the linear speed of the impregnating compound, so that the coating efficiency of the impregnating compound is improved, the outward retreating amount of yarns with the oil content exceeding the standard is reduced, minimum or zero outward retreating can be realized on an impregnating compound layer, and the quality of glass fibers can be effectively improved.

Lignin pellets comprising fused lignin are described herein. The lignin pellets may further comprise a processing aid, and / or a surfactant, and / or a chemical modifying agent, and / or a compatibilizer and / or a thermoplastic polymer. An extrusion process for producing the lignin pellets and their use in the manufacture of lignin thermoplastic blend products, polyols, polyphenols, polyaromatics and polyurethanes is also disclosed herein. The extruded lignin pellet may be dry-blended with additional thermoplastic and / or additive and then directly processed using processes such as injection molding, compression molding, extrusion, extrusion coating, blowing, thermoforming, stamping, foaming, fiber drawing, calendering or rolling.

The invention relates to an optical fiber drawing method integrated with a coloring function and a production system, and relates to the technical field of optical fiber manufacturing, and the method comprises the following steps: melting and drawing an optical fiber preform to form a bare fiber; the bare fiber is cooled; coating the cooled bare fiber twice to form an inner coating and an outer coating; performing primary UV curing on the inner coating and the outer coating to enable the outer coating to reach a semi-cured state; coating coloring ink on the surface of the outer coating in a semi-cured state; performing secondary UV curing on the coloring ink, so that the coloring ink is cured, and the inner coating and the outer coating are finally cured; and the cured optical fiber is detected and taken up. The coloring procedure is integrated into the wire drawing process, integrated continuous production is achieved, and optical fiber microbend loss caused by multiple times of winding and unwinding is avoided; by means of molecular activity in a semi-cured state, coloring ink permeates to form an interpenetrating network structure, and adhesive force is improved.

The application relates to a fiber panel for cultural and creative products and a preparation method and application thereof. The fiber panel comprises a plurality of optical fibers arranged in an array, the optical fiber comprises a core and a cladding layer; the core has a refractive index of 1.66-1.68; the cladding layer is coated outside the core; the cladding layer has a refractive index of 1.50-1.52, and the expansion coefficient of the cladding layer is 2-5*10 ‑7 (1 / DEG C) lower than that of the core; the method comprises the following steps: taking a glass rod with a refractive index of 1.66-1.68 as core material, nesting a glass tube with an expansion coefficient of 2-5*10 ‑7 (1 / DEG C) lower than that of the core material and matching the diameter of the core material rod as sheath material, hot melting to obtain a preform rod; performing fiber drawing and arrangement on the preform rod to obtain a multifilament rod; and performing bundling, plate drawing, mechanical processing and optical processing on the multifilament rod to obtain the fiber panel. The technical problem to be solved is to make the fiber panel free of dark spot defects with a diameter of 150 microns or above, free of chicken wire defects with a length of more than 2 mm, shear distortion less than or equal to 100 microns, snake distortion less than or equal to 100 microns, and image displacement less than or equal to 280 microns.

The utility model discloses an optical fiber drawing coating die through hole tool, which comprises a die through hole guider through hole needle and a die, the top of the small end of the die through hole guider is provided with a through hole needle precise through hole, and the through hole needle is in precise sliding fit with the through hole needle precise through hole of the die through hole guider. The die is installed through an inner hole at the large end of the die through hole guider, is in precise sliding fit with the inner hole and is provided with a positioning structure, so that accurate and stable installation is ensured, a through hole needle is inserted through a through hole needle precise through hole at the top of the small end of the die through hole guider, is in precise sliding fit with the guider and is assisted by a needle hole guide sleeve, and die orifice optical fibers can be automatically and accurately aligned; the alignment accuracy and the knocking fixity are improved, the production efficiency is improved, meanwhile, the accurate positioning structure prevents the die orifice from being damaged due to alignment deviation and knocking deviation, the elastic buffer structure prevents the through hole from damaging the die, the die damage risk is greatly reduced, the die loss is reduced, the production cost is saved, and considerable economic benefits are created for optical fiber production enterprises.

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.

The utility model relates to the technical field of textile instruments, in particular to a drafting device of a wool type fiber drawing frame, which is characterized in that when wool type fibers pass through a leather roller, a drafting roller and a pull-out roller of a drawing frame body to be drafted and pulled out, an electrostatic elimination component is started to increase the air humidity in the drawing frame body, and the conductive characteristic of water molecules is utilized to eliminate the static electricity in the drawing frame body. Water molecules in the air are combined with static charges on the surfaces of the wool-type fibers, so that static electricity is neutralized, the influence of the static electricity is reduced, and the influence of the static electricity on wool-type fiber processing is reduced; comprising a drawing frame body, a leather roller, a drafting roller and a pull-out roller, the leather roller, the drafting roller and the pull-out roller which are used for wool type fiber drawing and drafting are sequentially installed on the inner wall of the drawing frame body, the drawing frame further comprises a static electricity eliminating assembly, and the static electricity eliminating assembly is installed on the drawing frame body.

The utility model discloses a drawing device for hollow polyester staple fiber research and development, which comprises a fixed base, the top of the fixed base is respectively provided with a first winding device, a second winding device and a third winding device from one end to the other end, and two first guide frames are arranged between the first winding device and the second winding device. A heater is arranged between the two first guide frames, a heating bin is arranged at the top of the heater, a heating electric wire is arranged in the heating bin, two second guide frames are arranged between the second winding device and the third winding device, and a cooler is arranged between the two second guide frames. According to the device, heating work is conveniently carried out when hollow polyester staple fibers are drawn, so that the drawing efficiency is improved, the problem of low drawing speed is solved, rapid cooling is conveniently carried out after drawing, subsequent secondary processing is solved, and the processing convenience is improved.

An optical fiber includes a glass structure to guide light along a longitudinal axis of the optical fiber, and an amorphous coating disposed on and surrounding the glass structure. The amorphous coating includes at least one fluorinated polyimide. A repeating unit each fluorinated polyimide includes two imide groups and at least one fluorinated aliphatic spacer group. Each imide group is attached to a terminus of a fluorinated aromatic group. The amorphous coating has a low refractive index, high-temperature stability, and low optical absorption, making the optical fiber suitable for high-power applications subject to high temperatures. The amorphous quality of the coating is compatible with fiber drawing and provides the necessary mechanical strength for the optical fiber when in use.

The utility model provides an optical fiber preform rod on-line collimation monitoring and automatic correction device which comprises a tower, a translation device and a chuck clamp are arranged at the upper end of the tower, the chuck clamp is used for clamping an optical fiber preform rod, the translation device is used for adjusting the horizontal position of the chuck clamp, and a fiber drawing furnace is arranged below the chuck clamp. A sensor mounting plate is arranged at an upper end opening of the wire drawing furnace, a through hole is formed in the center of the sensor mounting plate, an X-direction position sensor and a Y-direction position sensor which are aligned to the center of the through hole of the sensor mounting plate are arranged on the sensor mounting plate, and the detection direction of the X-direction position sensor is perpendicular to that of the Y-direction position sensor. And the problem of collimation deviation of the preform during optical fiber drawing is solved.

This application belongs to the technical field of glass fiber drawing machines, specifically relating to a drawing machine head capable of automatically adjusting online to avoid the resonance zone during fiber drawing, and its control method. It includes three solutions: face-to-face tapered inward adjustment, back-to-back tapered outward adjustment, and a rear-end disc pneumatic mechanism. The face-to-face tapered inward adjustment solution uses bidirectional air inflation of the front and rear cone sleeves to press the vibration damping components inward; the back-to-back tapered outward adjustment solution forms a sealed cavity between the front and rear cone sleeves, and uses single-path air inflation in the middle to push the two cone sleeves outward against the symmetrically arranged, stepped vibration damping components; the rear-end disc pneumatic mechanism arranges vibration damping components on the circumference of the bearing seat, and adjusts the resonance range through air inflation using a rear-end disc clamping device. The drawing machine head and its control method disclosed in this application, capable of automatically adjusting online to avoid the resonance zone during fiber drawing, can achieve automated closed-loop adjustment of the machine head rigidity using vibration sensors, electronic control systems, and other components or assemblies, thus achieving the technical effect of flexibly avoiding the resonance zone during fiber drawing.

A method for manufacturing an HCF preform is described in which preform blanks (stacks) are subjected to hot forming process steps in order to obtain a preform. After the hot forming process steps, the preforms are cut by means of an annular saw cut method according to the invention such that their end faces have desirable properties for fiber drawing.

The utility model discloses a wire drawing machine for glass fiber production, which relates to the technical field of glass fiber production, and comprises a device body, one side of the device body is provided with a wind-up roll, one side of the device body is rotatably connected with a two-way screw rod, the outer side of the two-way screw rod is provided with external threads which are arranged in a mirror symmetry manner, and the two-way screw rod is provided with a screw rod. The wire drawing machine for glass fiber production comprises a device body, a two-way screw is arranged in the device body, two outer threads of the two-way screw are sleeved with two sliding blocks in a threaded mode, the two sliding blocks are arranged on the two outer threads of the two-way screw in a threaded mode respectively, and the sliding blocks are slidably connected with the side wall of the device body. The structure is simple to operate and convenient to use, a large number of fixing structures such as screws do not need to be used, and therefore the disassembly and assembly convenience of the winding roller of the wire drawing machine for glass fiber production can be effectively improved.

The invention relates to the technical field of optical fiber manufacturing, in particular to an optical fiber core diameter accurate control preparation method which comprises the following steps: step 1, providing an optical fiber preform; 2, heating the optical fiber preform to a softening temperature; step 3, carrying out wire drawing on the heated optical fiber preform through a wire drawing device; 4, in the wire drawing process, measuring the core diameter of the optical fiber in real time by using an optical measurement system; 5, comparing the core diameter measurement value with a preset target core diameter value, and calculating a core diameter deviation value; 6, dynamically adjusting wire drawing parameters through a control algorithm; and 7, repeating the step 4 to the step 6, and continuously performing real-time measurement, comparison and adjustment in the whole wire drawing process until the wire drawing process is finished. Manual intervention is replaced by an automatic control system, introduction of personal errors is reduced, and the stability and consistency of the optical fiber preparation process are improved.

The utility model discloses glass fiber drawing equipment, which relates to the technical field of glass fiber drawing, and comprises a fixed frame and a drawing roller, both sides of the drawing roller are provided with cross shafts, the surfaces of the two cross shafts are provided with hexagonal columns, the top of the fixed frame is symmetrically provided with two support rods, and the two support rods are connected with the cross shafts. The fixing frame is provided with an adjusting mechanism used for adjusting the position distance, the top of the fixing frame is provided with a rotating mechanism used for driving the wire drawing roller to rotate, the rotating mechanism is arranged on the adjusting mechanism, and the hexagonal column is arranged on the rotating mechanism. The adjusting mechanism comprises a two-way screw, the two-way screw is rotationally installed in the fixing frame, and two adjusting plates are installed on the outer wall of the two-way screw in a threaded mode, so that the wire drawing roller is convenient to install and replace, the wire drawing roller is stable in installation, deviation and shaking caused by rotation are avoided, operation is easy, and practicability is high.

The present invention provides a C80 steel fiber mass concrete and a preparation method thereof, and relates to the technical field of building materials, the concrete comprises 500-620 kg of a cementing material, 145-170 kg of water, 650-820 kg of a fine aggregate, 980-1180 kg of a coarse aggregate, and 0.9-1.4% by volume of a functionalized steel fiber. The temperature response composite microcapsule is immobilized on the surface of the functionalized steel fiber in a point-shaped or interval strip-shaped mode, the microcapsule comprises a phase change heat absorption core material, a temperature gating layer, a crack triggering liquid release module and an alkali-resisting shell, and a retarding component is controlled to release when the temperature exceeds a threshold value. And the internal curing liquid and the nucleation densification promoting component are released at a fixed point under the action of crack-induced fiber drawing or shearing. Hydration heat regulation and control and crack self-repairing functions are integrated into a steel fiber reinforced system, so that hydration heat self-feedback inhibition, crack fixed-point internal curing and interface re-densification are realized, and the risks of temperature cracks and self-shrinkage cracks of mass concrete are remarkably reduced while the high-strength performance is maintained.

This application provides a flexible production line capable of producing multi-grammage PET filament composite materials, relating to the field of nonwoven fabric production equipment technology. The production line includes, in sequence, a raw material processing unit, a mixing unit, a screw melt extrusion unit, a filtration unit, a metering extrusion unit, a drawing and filament forming unit, a hot air preheating unit, and a path switching mechanism for switchable high-grammage and low-grammage paths. The high-grammage path includes a cross-laying unit, a needle-punching composite unit, a slicing unit, and a hot-pressing unit, while the low-grammage path includes a hot-rolling unit and a winding and slitting unit. The drawing and filament forming unit employs a three-section fiber drawing machine (upper, middle, and lower), with a 30°–45° deflected airflow introduced in the middle section. This application achieves flexible switching between high-grammage and low-grammage products through the path switching mechanism, enabling the production of PET filament composite materials ranging from 9 g / m² to 2600 g / m² on the same production line, suitable for applications such as automotive sound insulation materials and filter materials.

This application belongs to the field of fiber drawing machine technology and discloses a multi-station, multi-variety fiber drawing machine with staggered arrangement on opposite sides. It includes a frame, a base plate on the side of the frame, and two mounting holes on the base plate. A turntable is installed in each of the two mounting holes, and a head assembly is mounted on the turntable. A flipping mechanism that drives the two turntables to rotate is installed inside the frame. A staggered arrangement mechanism is installed on the side of both the upper and lower head assemblies on the frame, and the two staggered arrangement mechanisms are arranged on opposite sides. Two wire-blocking mechanisms are also installed on the frame corresponding to each of the two head assemblies. A transverse sliding groove is provided at the bottom of the base plate, and an automatic wire-feeding mechanism is slidably installed in the transverse sliding groove. This application arranges the staggered arrangement mechanisms corresponding to the upper and lower head assemblies on opposite sides, so that the working positions of the upper and lower head assemblies are distributed on different sides. In this way, each upper and lower head assembly corresponds to a spindle for fiber drawing, and one fiber drawing machine can correspond to two spindles, thereby increasing the number of spindles in the production line and improving production capacity.

The application relates to a preparation method of an active optical fiber with enhanced anti-photon darkening performance and the optical fiber. First, an active optical fiber preform is prepared, the active optical fiber preform is clamped to a fiber drawing tower for heating and melting to draw the optical fiber, radiation aging treatment is carried out in the cooling forming stage of the optical fiber drawing, the bare optical fiber passes through a light radiation field to receive a predetermined dose of light radiation, then the optical fiber after the radiation aging treatment is subjected to resin coating and ultraviolet curing treatment, and finally the fiber prepared through the fiber drawing is placed in a deuterium gas environment full of deuterium gas or mixed with inert gas for deuterium gas bleaching treatment. The application can make potential active defects in the optical fiber be largely consumed in advance and be repaired by deuterium gas, so that in subsequent high-power laser work, the optical fiber shows extremely low loss growth rate and extremely high stability, and the anti-photon darkening performance of the active optical fiber is effectively enhanced. The application has simple process, low cost and easy integration.

The utility model provides a glass fiber wiredrawing structure and glass fiber production equipment with the same, the glass fiber wiredrawing structure comprises: a filter screen assembly arranged on a bushing and provided with a filter hole part; the protection part is arranged on the filter screen assembly, and the protection part is arranged around the filter hole part so as to define a protection space; and the reinforcing part is arranged in the protection space and connected with the protection part so as to support the protection part. The problem that in the wire drawing process of glass fibers in the prior art, crystals attached to the surface of a filter screen easily enter wire drawing holes, and the normal wire drawing procedure is affected is solved.

The invention belongs to the technical field of glass fiber drawing, and discloses a glass fiber drawing machine automatic head changing device and method.The glass fiber drawing machine automatic head changing device comprises a base, the base is provided with a sliding seat sliding in the length direction of a drawing machine head and a first driving mechanism driving the sliding seat to slide, and the sliding seat is provided with a head changing motor; a mounting cylinder with an opening facing the machine head is arranged at the rotor end of the head changing motor, a sliding sleeve sliding in the length direction of the mounting cylinder and a second driving mechanism driving the sliding sleeve to slide are arranged in the mounting cylinder, a plurality of grooves are formed in the outer wall of the sliding sleeve in a circumferential array mode, and yarn pushing rods are arranged at the positions, corresponding to the grooves, of the inner wall of the mounting cylinder. Tow transition during switching of the machine heads is achieved through the sliding sleeve, so that tows cannot be wound in the grooves of the front end covers of the machine heads, the tows connected between the machine heads and the sliding sleeve can be pulled apart under the action of pulling force during switching of the machine heads and loading, manual cutting is not needed, automatic head switching is achieved, and the high-rhythm production requirement can be met.

This invention provides a multimodal sensing method and system for online monitoring of inorganic fiber breakage during drawing. The method includes: acquiring infrared thermal and visible light images of the drawing furnace stencil based on a time synchronization mechanism; preprocessing to extract temperature and visual features of the fiber forming area at each stencil; spatiotemporally registering the temperature and visual features of the fiber forming area at the same stencil to form a multimodal feature vector for that fiber; performing a preliminary judgment on the multimodal feature vector of each fiber forming area based on a threshold method to mark suspected broken fibers; sequentially inputting the multimodal features of the broken fibers into a trained fiber breakage detection model for further identification to obtain a breakage confidence score; if the breakage confidence score exceeds the threshold, the fiber is determined to be broken, triggering an alarm and location processing. This invention effectively solves the problem of unreliability of traditional single sensors in high-temperature, high-speed, and multi-filament environments, significantly improving detection accuracy and efficiency.

The invention discloses a basalt fiber drawing flow control method, system and equipment and a medium, and relates to the technical field of data processing, and the method comprises the following steps: obtaining a contrast acquisition period, and obtaining a temperature data sequence and a viscosity data sequence; obtaining a viscosity time segment, obtaining an abnormal degree index, obtaining a result time segment, obtaining a change trend direction, and judging whether the abnormal degree index exceeds a first preset threshold value or not; if yes, a target temperature data sequence is formed, temperature time segments are obtained in the target temperature data sequence, and the temperature time segment with the maximum correlation degree with the result time segment is obtained and serves as an initiation time segment; a delay time period is obtained according to the initiation time segment and the result time segment, the target wire drawing flow at the target moment is obtained, and the temperature of the smelting furnace outflow channel is adjusted in advance according to the delay time period so that the target wire drawing flow can be achieved at the target moment. The method has the advantages that false triggering is avoided, delay drift is adapted, and the flow control effect is good.

This application belongs to the field of fiber drawing machine technology and discloses a five-point reciprocating fine fiber fiber drawing machine, including a frame, main shaft mechanism, impeller mechanism, flipping mechanism, precision positioning and arrangement mechanism, yarn blocking mechanism, yarn ball auxiliary forming mechanism, water pipe mechanism, integrated automatic yarn feeding mechanism, reciprocating fork mechanism, precision positioning automatic yarn pushing mechanism, automatic oiling system, and control mechanism. The flipping mechanism includes a turntable and a flipping shaft. The main shaft mechanism includes a shaft cylinder, a main shaft sleeve, and a main shaft. The reciprocating fork mechanism includes a fork, an annular slide rail, and a reciprocating plate that slides along the length of the main shaft. The fork slides on the annular slide rail and the reciprocating plate via a U-shaped seat. The reciprocating plate drives the fork and the main shaft sleeve to reciprocate, resulting in uniform yarn arrangement. The impeller length is greater than five yarn ball lengths, allowing more than five yarn balls to be drawn at once, extending the drawing time. The front end of the main shaft cooperates with the impeller mechanism through a conical surface, which can reduce impeller vibration and improve yarn ball quality.

The utility model discloses a glass fiber drawing machine capable of automatically breaking yarns, which relates to the technical field of glass fiber drawing machines and comprises a base and a support plate. A support is arranged on the top face of the base, linear motors are fixed to the left side face and the right side face in the support, the inner side face of a rotor base of each linear motor is connected with the end of the frame, a wire drawing wheel is rotationally installed in the frame, the supporting plate is fixed to the bottom face in the base, and a main motor is arranged on the rear side face of the supporting plate. An output shaft of the main motor is connected with the rear side end of the winding roller, a broken yarn detection unit is arranged on the front side face of the support, and a cooling unit is arranged at the top end of the support. According to the glass fiber drawing machine capable of automatically breaking the yarn, cracks, layering and defects on the surface of a glass fiber yarn can be detected by matching the defect camera with the infrared imager, so that the glass fiber yarn can be timely cut off while being found, and the quality of a finished product of the glass fiber yarn is prevented from being influenced.

The utility model belongs to the technical field of wire drawing machines, and discloses an unmanned intelligent glass fiber wire drawing machine which comprises a rack, a main shaft mechanism, an impeller mechanism, a turnover mechanism, a yarn blocking mechanism, a groove drum mechanism, a traction wire feeding mechanism, a continuous yarn cutting mechanism, an auxiliary sleeve mechanism and a control mechanism. A bobbin storage assembly, a bobbin grabbing assembly, a transfer assembly, a bobbin expanding assembly and a bobbin pushing assembly are arranged in the frame, the bobbin storage assembly is used for storing empty bobbins, the bobbin grabbing assembly is used for grabbing the empty bobbins to designated positions, and the transfer assembly drives the bobbin expanding assembly to move in the length direction and the vertical direction of the impeller mechanism. The empty bobbins are tensioned and transferred to the front end of the standby position impeller mechanism, and the bobbin pushing assembly is used for pushing the empty bobbins to the standby position impeller mechanism from the bobbin tensioning assembly. According to the automatic sleeving device, automatic sleeving can be achieved, the working efficiency is greatly improved, the labor intensity of workers is reduced, and a foundation is laid for automatic development of the wire drawing machine.

The application relates to the technical field of glass fiber manufacturing, in particular to a glass fiber drawing tension detection and adjustment device and a detection and adjustment method thereof. The device comprises a sliding piece, the top of the sliding piece is slidably connected with a waterproof sliding table, the top of the waterproof sliding table is boltedly connected with a support seat, one end of the top of the support seat is fixedly connected with a connecting block, the inner side of the top of the connecting block is rotatably connected with a positioning support, the top of the positioning support is fixedly connected with a bearing seat, and one side of the bearing seat is fixedly connected with a waterproof stepping motor. The glass fiber drawing tension detection and adjustment device and the detection and adjustment method thereof can drive the positioning support to move through the working of the sliding piece, the reaction force of the glass fiber bundle on the bunching disc is used to extrude the bunching disc on the tension and pressure sensor through the positioning support, the tension of the glass fiber bundle can be detected, and the tension and pressure sensor can give an alarm when the glass fiber bundle is broken.

The utility model belongs to the technical field of glass fiber drawing machines, and discloses an automatic loading mechanism of a glass fiber drawing machine, which comprises a base, a horizontally arranged traction plate arranged on the base, a traction groove formed in the traction plate, a traction assembly arranged on the base and positioned below the inner end of the traction groove, and a swing rod assembly arranged on the base and positioned below the traction groove, the swing rod assembly is used for guiding yarn to the traction assembly, a mounting seat is arranged on the traction plate, a yarn grabbing assembly is arranged on the mounting seat and comprises a yarn grabbing motor and a transition wheel, a plurality of arc-shaped guide plates are annularly arranged on the transition wheel at intervals, and a yarn breaking base plate is arranged on the wheel face of the transition wheel between every two adjacent arc-shaped guide plates. Yarns are dragged to the inner end of the dragging groove through the swing rod assembly, the yarns below are caught by the dragging assembly, then the transition wheel rotates to enable the yarns to be wound on the arc-shaped guide plate, and finally the yarns are loaded under the action of friction force of a machine head of the wire drawing machine, so that the labor intensity is effectively reduced, the production efficiency is high, and the bottleneck of glass fiber production automation is broken.

The application belongs to the technical field of optical fiber drawing and take-up, and particularly relates to a method and system for zero whipping of high-speed optical fiber drawing and disc changing, wherein the method for zero whipping of high-speed optical fiber drawing and disc changing comprises adjusting the line speeds of a full disc and an empty disc to be consistent, detecting the angle between a full disc optical fiber clamp and a first cutter and the angle between an empty disc optical fiber clamp and a second cutter during the process, and issuing a stop lever retreat instruction when the angle between the full disc optical fiber clamp and the first cutter is in a first angle interval and the angle between the empty disc optical fiber clamp and the second cutter is in a second angle interval. The full disc optical fiber clamp is first caused to clamp the optical fiber, and then the empty disc optical fiber clamp is caused to clamp the optical fiber and cut it, so that the outer end of the optical fiber on the surface of the full disc has been stably clamped by the full disc optical fiber clamp at the moment of cutting the optical fiber, thereby avoiding whipping of the tail end of the optical fiber on the surface of the high-speed rotating full disc.