100results about "Severing fibres" patented technology

The invention provides an injectable short-fiber-based hydrogel tissue repair material with an electric response characteristic as well as a preparation method and application thereof, and the injectable short-fiber-based hydrogel tissue repair material with the electric response characteristic is prepared by taking a natural polymer material loaded with bioactive factors as a core layer material and a biodegradable material as a shell layer material through a coaxial electrostatic spinning technology. The method comprises the following steps: preparing short fibers with a core-shell structure, uniformly mixing the short fibers with a hydrogel matrix, injecting and filling a tissue defect part, and carrying out ultraviolet curing to form the tissue repair material. The injectable short-fiber-based hydrogel tissue repair material with the electrical response characteristic provided by the invention has piezoelectric characteristic and injectable characteristic, can generate electrical response through mechanical stimulation so as to promote cell proliferation and tissue repair, and also has controllable drug release capacity and good mechanical adaptability; the method is suitable for application scenes of complex tissue damage repair such as diabetes infected wound repair, articular cartilage repair, oral barrier membrane repair, abdominal wall defect repair and the like.

Provided is a method for preparing industrial nylon filament, belonging to the technical field of spinning production. The method includes the following steps: Step 1, extruding: putting a nylon raw material into an extruder, melting at a high temperature, stirring, and extruding from a nozzle; Step 2, molding: extruding molten liquid from the nozzle, and enabling the molten liquid to enter a cooling tank for molding; Step 3, wire pulling: applying a certain tension to the wire in the cooling tank, and pulling out a molded nylon filament. A spool fully wound with the nylon filament is replaced without stopping a cutting and winding device, the efficiency of winding filament is greatly improved, and thus the production efficiency of the nylon filament is improved.

The invention discloses an automatic control method and system based on polyester relaxation heat setting drying. The process executed by the automatic control method through the control system comprises the steps that S1, the running speed of a post-spinning drafting combination machine is monitored in real time; presetting corresponding chain plate running speeds when the drafting combination machine runs at low, medium and high speeds, and controlling a chain plate frequency converter to control the chain plate to run at the corresponding speed so as to guarantee the drying time of tows in a drying machine when the drafting production speed of the drafting combination machine changes; s2, monitoring the running speed of the cut-off equipment in real time; and presetting the corresponding oiling machine running speed when the cut-off equipment runs at the low speed, the medium speed and the high speed, and controlling the oiling machine spraying frequency converter to run at the corresponding speed, so that the oiling machine can automatically carry out oil spraying quantity matching control along with the change of the running speed of the cut-off equipment. The speed of the chain plate of the dryer can be automatically adjusted according to the real-time speed of post-spinning drafting production, so that accurate temperature control and an efficient drying process are realized, and the quality and the production efficiency of polyester products are improved.

The utility model relates to the technical field of monitoring, in particular to an antibacterial polyester yarn slice mixing device which comprises a bearing table, a conveying mechanism is installed on the table wall of the bearing table, and the conveying mechanism is formed by combining a motor A, a concave frame, a sliding groove, an electric hydraulic rod, a clamping plate, a lead screw and a sliding block. A motor A is installed at the table bottom of the bearing table through bolts, a lead screw is installed at the output end of the motor A, a sliding block is in threaded connection with the rod wall of the lead screw, a sliding groove is formed in the table top of the bearing table, the sliding block penetrates through the sliding groove, and a concave frame is installed at the other end of the sliding block; a set of symmetrical electric hydraulic rods are installed at the top of the concave frame through bolts, clamping plates are installed at the output ends of the set of electric hydraulic rods, and after the lead screw rotates, the sliding block moves in the sliding groove, so that the concave frame is driven, and after polyester yarn is moved to the bottom of the cutter, the polyester yarn is cut off and sliced through the cutter.

The utility model discloses an automatic yarn guiding, cutting and sucking device, and belongs to the technical field of textile equipment. The device comprises a silk suction main body, a vacuum generator is embedded in the silk suction main body, and a waste silk suction inlet and a waste silk discharge outlet are formed in the vacuum generator; the shredding part is fixed on the shredding main body and comprises a shredding knife; the silk guiding part comprises a silk guiding area suitable for silk threads to stretch in, the silk guiding part is driven by a first linear driving part to be switched from a first position to a second position and then returns to the first position, and the first linear driving part is fixed to the silk sucking body; when the silk guiding part is switched from the first position to the second position, the silk guiding area of the silk guiding part is close to the silk cutting edge of the silk cutting part so that silk can be cut off, and the cut-off silk enters the vacuum generator in the silk suction body along the waste silk suction inlet and is discharged through the waste silk discharging outlet. According to the utility model, the functions of filament guiding, filament cutting and filament sucking are integrated, the structure is compact, and the integration level is high.

The application discloses a kind of preform cutting method and device, device includes rotary shaft (1), cutting support (2), axial movement track (3), height self-adapting adjusting device (4) and cutting execution mechanism, cutting execution mechanism includes track mark and identification system (5) and preform adaptive cutting device (6), rotary shaft (1) is used to erect preform, the bottom of cutting support (2) is connected with rotary shaft (1), top is provided with axial movement track (3), the top of height self-adapting adjusting device (4) is slidably connected with axial movement track (3), bottom is connected with track mark and identification system (5) and preform adaptive cutting device (6), height self-adapting adjusting device (4) can be adjusted height along vertical direction.The present application realizes that preform is formed after completion, and effective area mark accuracy is greatly improved, to thereby reduce the influence to preform use.

The invention discloses a special fiber hot stretching and shaping cut-off machine system and method. The special fiber hot stretching and shaping cut-off machine system comprises a feeding rack. A special fiber protofilament drum roll is arranged on one side of the feeding rack; a special fiber bundle is wound on the special fiber protofilament drum roll; one end of the special fiber bundle is pulled into the unwinding tension device and is guided by the unwinding tension device to continuously penetrate into the auxiliary heating multi-roller combined device; a knotter, a lifting knotting device, a cold air system, a sliding type clamp mechanism, a swing type clamp mechanism, an electric control cabinet and a finished product collecting box are arranged on the inner side of the feeding rack. The system meets the requirement of a user for full-automatic process production, the repeated labor intensity of workers is reduced, part of the process steps are fully automatic, and manual operation is reduced to the maximum extent.

The invention relates to the field of fiber chopping, and provides a continuous fiber chopping processing method which comprises the following steps: dipping a plurality of continuous filament fibers in a curable liquid medium, and then curing under an ordered placement condition to obtain a cured fiber body; controlling the feeding amount of a cutter according to the length of the required chopped fiber, and milling the cured fiber body to obtain processed chippings; and carrying out heat treatment on the processed chippings, and removing the cured medium to obtain the chopped fiber with the required length. The chopped fibers prepared by the method are controllable in length and high in fiber length consistency and uniformity, accurate control and dispersed preparation of the length of the chopped fibers can be realized, and full coverage of the length from a few microns to dozens of millimeters from a zero point can be realized, for example, ultra-short fibers can be prepared. The method can realize accurate chopping preparation of various materials such as inorganic fibers and organic fibers, and is one of key technologies for preparing composite materials.

The utility model relates to a fiber cutting device which comprises a box body, a cutting table is arranged on the inner bottom wall of the box body, a supporting rod is fixedly connected to the top end of the cutting table, a fixing plate is connected to the top end of the supporting rod, an air cylinder is arranged on the lower left portion of the fixing plate, and a cutting knife is fixedly connected to the telescopic end of the air cylinder. A cutting groove matched with the cutting knife is formed under the cutting knife. The surface of the threaded rod is in threaded connection with a moving plate, a second motor and a second bearing are fixedly arranged on the two inner side walls of the moving plate respectively, the output end of the second motor is connected with a rotating rod, and the surface of the rotating rod is sleeved with a rolling cylinder. The first motor and the second motor are started to drive the threaded rod to rotate forwards and backwards, the threaded rod rotates forwards and backwards to drive the moving plate to move leftwards and rightwards, the second motor is started to drive the rotating rod to rotate, and the rolling cylinder rotates along with the rotating rod and moves leftwards and rightwards along with the moving plate at the same time. And the brush arranged on the surface of the rolling cylinder is used for cleaning waste garbage.

The application provides a preparation method and manufacturing device of chopped carbon fibers, and belongs to the technical field of chopped carbon fiber manufacturing. The preparation method of the chopped carbon fibers comprises the following steps: providing a continuous finished carbon fiber bundle, the surface of the carbon fiber bundle being a thermosetting coating; sequentially performing twisting treatment, degumming treatment, sizing treatment, pre-drying treatment, slitting treatment and drying treatment on the carbon fiber bundle to obtain the chopped carbon fibers; and in the sizing treatment step, the sizing agent is a thermoplastic resin. The chopped carbon fibers prepared by the method can resist high temperature and can be firmly combined with a thermoplastic matrix material.

The utility model relates to the technical field of polyester filament yarn processing, and discloses a cutting device for polyester filament yarn processing, which comprises a feeding table, a partition plate is fixedly connected to the upper surface of the feeding table, a motor is fixedly connected to the upper surface of the feeding table, and a gear is fixedly connected to the output end of the motor. And the upper surface of the gear is rotationally connected to the lower surface of the feeding table, the outer wall of the gear is connected with a tooth pattern plate in a meshed mode, the outer wall of the tooth pattern plate is fixedly connected with a moving block, a sliding groove is formed in the moving block, and the outer wall of the tooth pattern plate is arranged on the inner wall of the sliding groove. According to the polyester filament cutting device, the output end of the motor drives the gear to rotate, the gear drives the tooth pattern plates at the two ends to move relatively, then the movable block is driven to slide on the outer wall of the guide rail, the fixing frame is driven to move through the supporting block, polyester filaments can be positioned and cut off through the cutting-off tool, and therefore the polyester filaments of different lengths can be cut off; and the flexibility and applicability of the equipment are improved.

The utility model discloses a preparation device for flame-retardant polyester silk, which relates to the technical field of polyester silk production and comprises a bottom plate, a back plate is welded at one end of the outer wall of the top of the bottom plate, the back plate is matched with the bottom plate, mounting components are arranged at the two ends of the outer wall of the bottom plate and the two ends of the outer wall of the back plate, and adjusting components are arranged at the two ends of the outer wall of the back plate. The adjusting assembly is located between the installation assemblies and matched with the installation assemblies. According to the polyester yarn cutting device, when polyester yarn is cut, the adjusting block slides up and down along the back plate to drive the adjusting roller to ascend or descend, the tensioning degree of the polyester yarn is adjusted, and the polyester yarn is more compact and not prone to loosening when wound; the first electric telescopic rod drives the fixing plate to descend to be combined with the supporting plate so as to fix the polyester yarn, after the polyester yarn is cut, the cut polyester yarn can be intercepted, the polyester yarn fracture does not need to be found again, the polyester yarn reconnection time is saved, and use is more convenient.

A device for cleaning and / or suctioning pile fibers for pile fabric filtration can be brought into a fluid connection with a suction source and includes at least one suction slot. The device for cleaning and / or suctioning has structure for mechanically cleaning, restoring and profiling the pile fibers. The structure increases the cleaning effect and simultaneously realigns the pile fibers and thus restores the pile fibers layer.

The utility model relates to the technical field of wear-resistant polyester yarn processing, and discloses a cutting device for wear-resistant polyester yarn processing, which comprises a cutting device and a protection component. Wear-resistant polyester yarns can be cut through the cutting device, the working range of the heating blade can be limited through matched use of the protection assembly and the two adjusting assemblies, the situation that in the working process, accidents occur, and consequently objects or hands touch the heating blade is avoided, residues generated by cutting the wear-resistant polyester yarns can be collected through the material collecting assembly, and the cutting efficiency is improved. The two adjusting blocks can be fixed after moving through the two positioning assemblies, the effects that the working range of the heating blade can be limited, the situation that an object or a hand touches the heating blade due to accidents is avoided, and residues left after cutting are conveniently collected are achieved, and the problems that the working range of the heating blade cannot be limited, and in the using process, the cutting efficiency is high are solved. And a worker is easy to touch the heating blade.

The utility model discloses high-strength polyamide yarn processing equipment which comprises an upper group of transmission rollers, a lower group of transmission rollers and a cutting mechanism arranged between the left sides of the transmission rollers, electromagnets are arranged on the left sides of the opposite sides of the two transmission rollers, the cutting mechanism comprises a rack, and a tool rest is connected into the rack in a sliding mode. According to the high-strength nylon yarn processing equipment, the cutting mechanism and the electromagnet are arranged between the two groups of transmission rollers, when nylon yarns need to be cut off, the electromagnet can attract the cutting mechanism to move rightwards in a magnetic attraction mode, on one hand, a yarn pressing iron disc can be matched with the electromagnet to press the nylon yarns, and the situation that the nylon yarns cannot be cut off due to sliding during cutting is avoided; on the other hand, the touch switch can be pressed down to cut off the power supply of the driving roller driving structure to stop the driving roller driving structure, meanwhile, the braking vane can press the driving roller to achieve the braking effect, the nylon yarn is prevented from being snapped by inertial rotation, three-step synchronous operation is achieved, and the cutting quality of the nylon yarn is effectively improved.

The utility model relates to the technical field of cut-off machines, and discloses a cut-off machine for heat-resistant polyamide fiber production, which comprises a workbench, the top end of the workbench is fixedly connected with supporting plates, the top ends of the supporting plates are provided with T-shaped grooves, the inner sides of the T-shaped grooves are connected with T-shaped limiting plates in a sliding manner, the top end of the front side of each T-shaped limiting plate is provided with a second clamping groove, and the top end of the rear side of each T-shaped limiting plate is provided with a second clamping groove. T-shaped buckles are clamped to the inner sides of the front sides of the supporting plates, limiting grooves are formed in the middle of the top end of the workbench, graduated scales are fixedly connected to the front side and the rear side of the top end of the workbench, and a U-shaped plate is fixedly connected to the top end of the left side of the workbench. According to the heat-resistant polyamide fiber cutting machine, the graduated scale is fixedly connected to the top end of the workbench, so that the corresponding T-shaped buckles are pulled out from the inner sides of the second clamping grooves according to the cutting positions of heat-resistant polyamide fibers, accurate cutting of different sizes can be achieved, the flexibility and diversity of the cutting machine are improved, and the requirements of users are met.

The present invention discloses a wire moving, cutting and separating device, comprising a wire moving power device, a wire cutting device and a wire moving reciprocating device, wherein the two ends of the wire cutting device are respectively mounted on upright posts, a wire moving reciprocating device is arranged above the wire cutting device, and the end of the wire moving reciprocating device is connected to the wire moving power device, and the wire moving reciprocating device comprises a profile groove, the bottom of the profile groove supports a plurality of first guide wheel devices, and a second guide wheel device and a third guide wheel device are respectively mounted on both sides of the profile groove, wherein the first guide wheel device and the second guide wheel device are mounted on the wire cutting device, and the third guide wheel device is mounted below the roller cross beam, and a plurality of wire moving porcelain devices are installed at intervals on the profile groove. The present invention separates the wire cutting and moving devices, and redesigns a new installation method of the wire cutting and moving devices, so that the wire cutting and moving devices respectively play the role of wire cutting and wire moving, thereby achieving the purpose of avoiding the breakage of the spring plate and the burning of the transmission power device due to overload.

A system and method for optimizing flexible material handling for decorticated agricultural biomass. The method including: receiving decorticated components of the decorticated agricultural biomass, the decorticated components including bast fibre and hurd; analyzing one or more mechanical characteristics of the bast fibre; determining if the bast fibre is above a predetermined quality threshold based on the analyzed mechanical characteristics; where the bast fibre is above the predetermined threshold, directing the bast fibre for cutting, and cutting the bast fibre into one or more lengths; and where the bast fibre is below the predetermined threshold, directing the bast fibre for blending, and blending the bast fibre and hurd in determined proportions.

The utility model relates to the technical field of garment fabric production, in particular to an easy-to-clean fabric surface cleaning device with a double-sided scraping function. The two sides of the machine body are each provided with a material passing channel for fabric to pass through, the two sides in the machine body are each provided with two material passing shafts which are driven by a material passing motor and used for pushing the fabric to advance, and two sets of cleaning structures are arranged in the middle in the machine body and symmetrically arranged on the upper portion and the lower portion in the machine body; the upper cleaning structure comprises a movable frame which ascends and descends through threads, a gas pipe and an air suction groove are obliquely arranged below the movable frame, a filtering structure connected with the air suction groove is arranged on one side of the machine body, and a plurality of distance sensors are connected to the rear portion of the air suction groove; according to the utility model, through the dual effects of airflow and scraping, attachments on the two sides of the fabric can be removed, and dirt can be fed into the filtering structure to be filtered along with the effect of the airflow so as to exhaust gas.

The utility model relates to a yarn containing auxiliary structure for containing spun yarns, which comprises a yarn containing frame, the yarn containing frame is arranged below silicon oil feeding and bundling equipment for the spun yarns, and the spun yarns pass through silicon oil feeding and are bundled into spinning bundles to fall into the yarn containing frame to be contained; the shearing mechanism I is arranged between the spinning silicone oil feeding and bundling equipment and the yarn containing frame and can shear off spinning bundles; the left-right-front-back action mechanism II is connected with the silk containing frame and can do left-right reciprocating action and also can do front-back reciprocating action at the same time; and when continuous spinning bundles fall into the yarn containing frame, the left-right-front-back action mechanism II performs stepping action from front to back / from back to front, and performs left-right reciprocating action once after each step of action, so that the spinning bundles are folded and stacked in the yarn containing frame according to a certain rule. The device has the beneficial effects that the spinning bundles are prevented from being wound in the yarn containing frame, so that the work of manually straightening out the wound spinning bundles is reduced; automatic production can be achieved, and mass production is facilitated.

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.

According to one aspect of the present invention, there is provided CF-SMC production technology such that it is possible to inhibit contamination of a product with lint originating from fiber dust, even while using a disperser roll.　An SMC production method according to one aspect of the present invention includes: (i) drawing out a carrier film from a roll and causing the same to travel on a conveyance path such that the surface thereof is horizontal; (ii) cutting continuous carbon fiber bundles with a chopper disposed above the conveyance path and converting the continuous carbon fiber bundles to short carbon fiber bundles; (iii) causing the short carbon fiber bundles to fall onto the carrier film traveling on the conveyance path while dispersing the short carbon fiber bundles using a disperser roll disposed below the chopper, and causing the deposition of a carbon fiber mat on the carrier film; (iv) impregnating the carbon fiber mat with a thermosetting resin composition and converting the carbon fiber mat to a resin-impregnated carbon fiber mat; and (v) simultaneously with causing the deposition of the carbon fiber mat, using a dust collector to remove fiber dust generated from the short carbon fiber bundles via contact with the disperser roll.

The utility model provides an impurity removing device for white cotton sliver processing, and belongs to the technical field of white cotton sliver processing. The impurity removing device for white cotton sliver processing comprises an adjusting assembly and an impurity removing assembly, a first barrel and a second barrel are of a detachable double-barrel design, impurities easily left in the first barrel and the second barrel or white cotton slivers can be conveniently cleaned, the situation that next use is affected is prevented, the white cotton slivers are crushed through a cutting piece, and the use efficiency of the white cotton slivers is improved. The white cotton slivers can be separated from impurities conveniently, the light white cotton slivers can be sucked into the shell through the draught fan and blocked through the filtering plate, the sealing plate is opened, the white cotton slivers attached to the interior of the shell and the filtering plate are pushed out of the interior of the shell through the pushing piece, the white cotton slivers can be separated from the impurities, and automatic separation of the white cotton slivers and the impurities is achieved. Furthermore, the first can body and the second can body adopt a detachable double-can-body design, so that the first can body and the second can body are convenient to clean, light white cotton slivers are convenient to discharge, accumulation is prevented, and the practicability is improved.

The invention provides a fiber processing device and method, the fiber processing device comprises a silk withdrawing unit, a tension adjusting unit, a coating unit, a drying unit and a shearing unit, the silk withdrawing unit comprises a silk withdrawing frame and a silk withdrawing shaft; the tension adjusting unit comprises a tension adjusting frame and a plurality of tension adjusting rollers; the coating unit comprises a coating frame, a coating pipeline, a first coating ring and a second coating ring, the coating pipeline, the first coating ring and the second coating ring are all arranged on the coating frame, the coating pipeline conveys glue liquid, a first liquid outlet hole is formed in the first coating ring, a second liquid outlet hole is formed in the second coating ring, and the first liquid outlet hole is communicated with the second liquid outlet hole. The area of the second liquid outlet hole is larger than that of the first liquid outlet hole, and the fiber yarn sequentially passes through the first coating ring and the second coating ring so as to coat the glue solution on the surface of the fiber yarn; the drying unit performs gradient drying on the cellosilk; and the shearing unit is used for cutting the cellosilk. According to the fiber processing device disclosed by the invention, uniform gluing can be realized, a glue layer is strongly combined with fibers, and the quality of fibers is ensured.

The invention discloses an automatic device for finely cutting a hollow fiber membrane bundle and a processing method thereof. The device comprises a rack, a film core stock bin arranged in the rack, a film core lifting belt line arranged on one side of the film core stock bin, a film core transplanting module arranged on one side of the film core lifting belt line, a film core conveying belt line arranged on one side of the film core transplanting module, and film core two-end visual inspection mechanisms arranged on the two sides of the film core conveying belt line. The precise cutting mechanism is arranged on one side of the film core conveying belt line, the double-rotor transplanting module is arranged above the film core conveying belt line, the precise cutting mechanism, the finished product discharging position and the NG recycling position, the finished product discharging position is arranged on one side of the precise cutting mechanism, the NG recycling position is arranged on one side of the finished product discharging position, and the film core stock bin is fixedly installed on the film core lifting belt line. The production efficiency is improved, the labor intensity is reduced, new equipment can reach the rhythm of less than 2.5 seconds per piece, and the equipment can be operated by one person; the equipment performs full-automatic shredding, so that personnel operation is reduced, and the safety coefficient is improved.

The utility model discloses a lifting heating track door and energy -conserving heat box of false twist texturing machine, in the light of traditional heat box energy consumption is high, the problem of big heat loss, lifting heating track door adopts arc heat preservation covering structure, curvature radius R20010 1mm, and the clearance control is at 5 15mm between hot rail, cooperates " connecting rod + elastic piece + double fulcrum " structure, ensures that the micro -gap is under the stable opening and closing, and the door body is equipped with multilayer composite heat preservation structure and mirror surface reflection film, and the heat preservation and heat radiation utilization are strengthened. Energy -conserving heat box adopts the modular vertical design, utilizes the heat medium natural convection, and is equipped with the asbestos heat preservation layer between the box and the shell. The experiment shows that the energy consumption is reduced by 69% than the traditional heat box when the clearance is 5mm, and the operation is convenient, the temperature uniformity is promoted, is applicable to the chemical fiber false twist texturing process, and the energy consumption and production cost are reduced significantly.

The present invention discloses a special fiber heat stretching and shaping cutting machine system and method, comprising a feeding frame; a special fiber raw yarn drum roll is arranged on one side of the feeding frame; a special fiber bundle is wound on the special fiber raw yarn drum roll; one end of the special fiber bundle is pulled into a debonding tension device, and continues to penetrate into an auxiliary heating multi-roller combination device under the guidance of the debonding tension device; a knotter, a lifting knotting device, a cold air system, a sliding clamp mechanism, a swing clamp mechanism, an electric control cabinet and a finished product collection box are arranged on the inner side of the feeding frame. This system meets the user's demand for fully automated process production, reduces the intensity of workers' repeated labor, and some process steps are fully automated to minimize manual work.

The application provides a carbon fiber sample preparation tool and a carbon fiber sample preparation method, which comprise a first mold and a second mold, the first mold has a first groove, a carbon fiber bundle can enter the first groove and is pasted with a conductive tape in the first groove to form a carbon fiber pre-sample, the second mold has a second groove, the sidewall of the second groove has an opening, the second mold has a cutting surface outside the second groove, the cutting surface is a plane and is arranged around the circumference of the opening, the carbon fiber pre-sample can enter the second groove and can extend out of the opening, so that a cutting structure can cut the carbon fiber pre-sample along the cutting surface to obtain a carbon fiber sample, and a section of the carbon fiber sample forms a carbon fiber cross-section morphology microscopic observation surface. According to the carbon fiber sample preparation tool and the carbon fiber sample preparation method, the carbon fiber cross-section can be quickly obtained without damaging the carbon fiber cross-section.

The invention relates to the field of chinlon spinning production, and discloses extrusion spinning equipment for chinlon spinning production, which comprises a supporting table, a spinning machine and a cooling assembly, the spinning machine is arranged on the left side of the upper surface of the supporting table, a feeding hopper is arranged on the spinning machine, and a plurality of spinning pipes are arranged above the right side surface of the spinning machine; a cooling assembly is installed on the portion, close to the middle, of the upper face of the supporting table, a plurality of air outlets are formed in the cooling assembly, a partition plate is arranged on one side face of the cooling assembly, and a plurality of guide holes are formed in the positions, corresponding to spinneret pipes, of the partition plate; a second fixing plate is fastened to the right side of the rear side face of the supporting table through a bolt, a first driving structure is pushed through a pushing structure to drive a shredding structure to conduct automatic shredding on a winding shaft, one end of a nylon yarn is automatically clamped and fixed to the winding shaft after shredding, in this way, shredding and clamping work can be automatically achieved, operation is more labor-saving and convenient, and the production efficiency is improved. And the working efficiency is improved.

The invention discloses a preparation method of fixed-length continuous fibers. Aiming at the pre-twisted fibers, firstly plying N fiber yarns to enable the N fiber yarns to be combined into a group of mutually attached fiber yarns, then enabling the group of fiber yarns to pass through a twisting device, twisting the N yarns to form mutually interwoven and wound single-strand fiber yarns, cutting off N-1 fiber yarns at fixed length, and finally forming a shaft again by utilizing a yarn collecting roller; for non-pre-twisted fibers, the non-pre-twisted fibers are broadened firstly, the two sides of the non-pre-twisted fibers are subjected to fixed-length half cutting, only the fiber continuity of the middle area is reserved, and then the non-pre-twisted fibers are collected to form a shaft so as to be used in the next procedure. According to the invention, the twisted fiber yarn is cut at fixed length, so that the traditional preparation mode that the unit layers of the preform need to be connected by a mesh tire is changed, the preparation procedures of the preform are reduced, the preparation time and the preparation cost of the preform are reduced, and the industrial competitiveness of a preform production enterprise is greatly improved.