177results about How to "Good orientation" patented technology

A method for preparing a highly oriented anisotropic bonded magnet belongs to the field of magnetic material preparation technology. The preparation method is as follows: First, a binder is dissolved in a solvent to form a homogeneous and stable solution. Then, surface-pretreated anisotropic magnetic powder is added to the solution. Next, the magnetic powder / binder solution is placed in a ball mill jar for ball milling to refine the powder, ensuring uniform dispersion and achieving better calendering orientation anisotropy. Finally, an extractant is added while vacuum filtering the ball-milled suspension, causing the magnetic powder / binder composite to precipitate as a pre-oriented precipitate. The precipitate is crushed, sieved, and then calendered. During calendering, the pre-oriented magnetic powder / binder composite undergoes further mechanical orientation, thereby preparing an anisotropic bonded magnet with a higher degree of orientation.

The utility model discloses a novel mechanical snap ring type air door interlocking device which comprises a first air door, a second air door, connecting baffles and an air door interlocking mechanism, and the connecting baffles are installed on the first air door and the second air door respectively. Door frames of the first air door and the second air door are each provided with one air door interlocking mechanism, and the air door interlocking mechanism at the position of the first air door is connected with the second air door through an interlocking rope and a telescopic spring; and the air door interlocking mechanism at the second air door is connected with the first air door through another interlocking rope and a telescopic spring. When one air door is opened, the other air door is completely in a locked state and cannot be opened, so that the air flow of a roadway is isolated or the air quantity passing through the roadway is limited.

The utility model discloses a sensor terminal and a sensor terminal injection mold structure, the sensor terminal comprises three connecting terminals which protrude out of a sensor shell and extend in parallel, the root part of each connecting terminal is provided with an arc-shaped bulge, one end, relatively far away from the root part, of each connecting terminal is an inner side end, and the other end of each connecting terminal is an outer side end. Limiting bosses are symmetrically arranged on the two sides, close to the inner side ends, of the connecting terminals in the extending direction, a short circuit prevention gap is formed between the limiting bosses on the adjacent connecting terminals, and a guide channel matched with a connector injection mold is formed between the adjacent connecting terminals. And the limiting boss is arranged on the connecting terminal so as to guide the connecting terminal when the connecting terminal is inserted into the connector injection mold, and the connector injection mold can abut against the limiting boss, so that injection molding calibration is completed. According to the sensor terminal and the sensor terminal injection mold structure, the injection molding length quality requirement of the sensor terminal can be met, and the plugging work efficiency is improved.

The present application relates to the technical field of clothes processing, and particularly provides a drying system and clothes processing equipment, aiming to solve the problem of poor stability of the compressor caused by the existing installation mode of the compressor. To this end, the drying system of the present application comprises a base, a heat pump module and a metal bracket, the base is formed with a drying air duct, the evaporator and the condenser of the heat pump module are both installed inside the drying air duct, and the metal bracket is located between the compressor of the heat pump module and the base and is fixedly connected with the compressor and the base. By additionally arranging the metal bracket between the compressor and the base, the contact area with the base is increased, so that the compressor is more stable, the compressor is more stably operated, and the metal bracket has high structural strength, which is more conducive to improving the stability of the compressor. In addition, the metal bracket can also play a certain buffering role, which is conducive to reducing the vibration of the base, thereby reducing the noise during equipment operation and improving the user experience.

The application discloses a folding method of a side airbag of a car seat, which comprises the following steps: step 1, laying the side airbag; step 2, folding the upper part of the airbag to the passenger side, and then folding the upper part upward to form a Z-fold; step 3, inserting the lower end of the airbag into a fold to form an inner plug structure, at this time, the airbag is folded into a long strip shape; step 4, laying the long strip-shaped airbag, and folding the X-direction front part of the airbag to the passenger side direction; step 5, continuing to fold the X-direction rear part of the airbag to the root of the gas generator in a Z-fold manner; and step 6, wrapping a cloth around the outer periphery of the folded airbag to maintain the shape. The application has a good guiding effect on a large amount of gas generated by the gas generator, can effectively guide the gas to rapidly inflate to the dummy arm direction, makes the airbag unfold to the passenger side of the dummy and be filled with the gas, and realizes the function of rapidly lifting the arm of the dummy.

The utility model provides an energy -saving type cowshed ventilation fan belongs to ventilation fan field, including fan frame and fan blade, the positive rear of fan blade is provided with drive motor, and drive motor's output is fixedly connected with the axle core department of fan blade, the fan blade is located the inside of fan frame, and drive motor is fixedly connected with fan frame through connecting piece, one side of fan frame is fixedly connected with two upper and lower symmetry connecting blocks, the bottom end of the connecting block of the most top is rotatably connected with connecting rod through bearing, and the bottom end of connecting rod penetrates and rotatably another connecting block through bearing and extends its downside. The utility model is favorable to the equipment orientation of installation completion convenient adjustment, can carry out equipment height adjustment according to the environment at will, reduces the operation difficulty of installation personnel and the later adjustment time, guarantees optimal wind direction and angle and carries out heat dissipation, realizes manual and energy double energy -conservation, solves the angle adjustment of convenient to it and the consumption of manual in prior art after fixing.

This utility model relates to a bending roll device for work rolls in medium and heavy plate rolling mills, belonging to the field of rolling mill equipment in the metallurgical industry. Its purpose is to extend the service life of the bending roll cylinder. The upper cylinder piston rod of the upper bending roll cylinder is connected to an upper guide plate. The top plate, outer guide plate, and inner guide plate of the upper guide plate form a downward-facing groove that engages with the top of the bending roll cylinder block. The upper cylinder piston rod is connected to the top plate and pushes the upper roll bearing seat via the upper guide plate. The lower cylinder piston rod is connected to a lower guide plate and pushes the lower roll bearing seat via the lower guide plate. The upper guide plate transmits the frictional force of the bearing seat moving axially along the work roll when the work roll shifts to the bending roll cylinder block, preventing the upper cylinder piston rod of the upper bending roll cylinder from being subjected to radial force. It has a good guiding effect and alleviates problems such as sealing oil leakage, rapid guide wear, and even piston rod deformation caused by long-term radial force during roll shifting. This helps extend the service life of the upper bending roll cylinder and is suitable for rolling mills with large openings. The bending roll cylinder is easy to install and disassemble, and convenient to maintain.

The utility model provides a kind of heat exchange pipe groove processing mould, it is related to stamping die technical field, including processing mould assembly, the outside of processing mould assembly is provided with protection assembly, dismounting assembly is provided on the processing mould assembly, the processing mould assembly includes upper die and lower die, installation slot is opened in the upper die, stamping head is provided on the upper die.The utility model is by sliding block sliding in the inside of installation slot, it is favorable to the maintenance of stamping head, then using limit plug synchronous sliding in the inside of installation slot, it is favorable to the transverse limit of sliding block, moving limiting plate is active in the inside of fixed frame, it is favorable to make the limiting plate provide limiting effect to limit plug, then using fastening bolt is penetrated in the inside of limiting plate, it is favorable to the limiting of limiting plate, without the maintenance of a large number of bolts, it can be maintained and replaced to stamping head, improve maintenance efficiency.

The utility model relates to the technical field of welding deformation correction, and discloses an H-shaped steel column welding deformation correction device convenient to position, which comprises a bottom plate, a processing table, an H-shaped steel column main body and a flame gun, vertical plates are fixed on two sides of the top of the bottom plate, and a positioning roller is arranged between the assembling plates by utilizing a shaft rod. A sliding groove is formed in a vertical plate, a first sliding block is embedded in the sliding groove to form sliding connection, after a first telescopic rod works, the height position of a first adjusting box can be pushed to be adjusted, and then a first motor is started to work to drive a first threaded rod to rotate; at the moment, a first threaded block and a first threaded rod are matched to move back and forth, when a flame gun is used for work correction, the position of the movable positioning roller can be adjusted, and a second telescopic rod can be started to work to push and change the left-right position of the positioning roller, so that the two positioning rollers can position the H-shaped steel column main body, and the positions of the positioning rollers can be changed during linear heating; and the overall positioning capability is improved.

The application relates to the field of carbon nanotube catalyst materials, and specifically discloses a catalyst and a preparation method thereof, an array type carbon nanotube and a preparation method thereof. A catalyst is formed into a sheet-shaped nanocrystalline grain, and the sheet-shaped nanocrystalline grain comprises at least one kind of microwave active metal ion. The preparation method of the catalyst comprises the following steps: S1, microwave-assisted reaction; S2, standing and aging; and S3, calcination treatment. An array type carbon nanotube is prepared by catalysis of the catalyst, the array type carbon nanotube has a plurality of unit carbon nanotube bundles, the unit carbon nanotube bundle comprises a plurality of carbon nanotubes which are intertwined and have a tube length greater than 1 mu m, and the tube diameter of the unit carbon nanotube bundle is 0.2-2 mu m. The carbon nanotube prepared by catalysis of the catalyst has a consistent length-diameter ratio, good orientation and high purity, so that the excellent performance of the carbon nanotube can be brought into play.

The application provides a gas explosion device, a gas explosion system and an ignition method applied to a film and television fireworks special effect. The gas explosion device comprises: a combustible medium container for storing combustible medium; a driving assembly comprising a driving assembly body with a first cavity and a moving piece, the moving piece being located in the first cavity, the moving piece comprising a puncture part; a driving piece arranged in the first cavity and located on one side of the moving piece, used for generating driving kinetic energy to push the moving piece to move; and a first charge arranged in the puncture part of the moving piece, used for ignition after the puncture part pierces into the combustible medium container, so as to ignite the combustible medium in the combustible medium container. The gas explosion device, the gas explosion system and the ignition method are used to achieve the effect of instantaneous complete explosion under the condition of meeting safety.

The utility model provides a tire crusher which comprises a base, a support is arranged on the base, a crushing box with an opening in the lower end is arranged on the support in a penetrating mode, a feeding hopper is arranged on the top of the crushing box, two installation frames are arranged between the front side wall and the rear side wall of the crushing box in a sliding mode, and installation shafts are rotationally arranged on the two installation frames respectively. And telescopic push rods are arranged at the left side end and the right side end of the crushing box correspondingly, and output shafts of the telescopic push rods are connected with the mounting frame. According to the tire crusher disclosed by the utility model, the basic requirement of crushing waste tires can be met, and the horizontal position of the crushing structure can be flexibly and conveniently adjusted, so that a worker can conveniently clean crushed tire materials clamped on the crushing structure from the upper side.

This invention provides a fiber-based biomimetic polyurethane artificial blood vessel and its preparation method. The method involves using wet spinning technology to obtain filaments, which are then drawn and wound onto the surface of a metal tube to form a polyurethane fiber inner layer. A fabric middle layer is woven onto the surface of the polyurethane fiber inner layer. An organic solvent is sprayed onto the surface of the fabric middle layer, and an outer polyurethane fiber layer is prepared on the fabric surface using electrospinning technology. Finally, after curing and demolding, the fiber-based biomimetic polyurethane artificial blood vessel is obtained. This invention combines wet spinning, weaving, and electrospinning technologies to achieve integrated preparation of polyurethane artificial blood vessels. The resulting artificial blood vessel is of high quality, with a tightly bonded three-layer fiber-based structure that maximally mimics the three-layer structure of natural blood vessels. The inner layer provides excellent compliance, the fabric layer increases the blood vessel's impermeability and sutureability, and the outer layer effectively prevents vascular delamination and promotes endothelialization. Furthermore, the preparation method is environmentally friendly and pollution-free, with a short process flow, making it suitable for continuous industrial production.

The present application relates to a liquid crystal elastomer microstructure preparation method based on photopolymerization phase separation, the method comprising S1, for a first liquid crystal cell with a specified thickness, filling a mixture of photopolymer monomers and liquid crystals between the first substrate and the second substrate of the first liquid crystal cell, the first substrate being a substrate without an alignment layer, and the second substrate being coated with an alignment layer; S2, covering a gray-tone mask on the first surface of the first substrate of the first liquid crystal cell; the first surface of the first substrate being the surface away from the mixture; S3, performing ultraviolet exposure on the gray-tone mask to separate the photopolymer monomers and the liquid crystals, and obtaining a composite structure; S4, based on a pre-configured liquid crystal elastomer prepolymer, processing the composite structure according to a preset liquid crystal elastomer microstructure preparation strategy, and obtaining a liquid crystal elastomer microstructure. The liquid crystal elastomer microstructure film prepared by the method has a thickness ranging from several microns to tens of microns, good alignment, and simple manufacturing process, low cost and high precision.

The utility model discloses a lifting device for coal processing, which comprises a lifting frame and a hopper arranged in the lifting frame, the bottom of the hopper is connected with a supporting seat, an arc-shaped groove is arranged in the supporting seat, the arc-shaped groove is connected with a connecting shaft in a sliding mode, two ends of the connecting shaft are connected with supporting wheels in a rotating mode, and the supporting wheels are connected with the lifting frame. The supporting wheel is matched with a supporting groove formed in the front side of the lifting frame, the lifting frame is connected with a driving mechanism used for driving the hopper to ascend and descend, the driving mechanism is connected with the connecting shaft, and the rear side of the lifting frame is connected with a guiding mechanism used for guiding the hopper. The guide mechanism comprises two guide rails, two guide grooves, two rotating wheels, two fixing shafts and a positioning mechanism, the rotating wheels are connected into the guide grooves, and the positioning mechanism is used for synchronously positioning the two guide rails. According to the utility model, the lifting and pouring of coal are smoother and coherent, the efficiency is high, the pouring at different height positions is realized, and the use in different occasions is met.

The utility model discloses an anti-dead-attraction device for a maglev train, which belongs to the technical field of safety driving devices for maglev trains and comprises a maglev track and a magnetic attraction component mounted on the surface of the maglev track, and a guide component is erected outside the maglev track. The supporting plate is fixed to the surface of the magnetic suspension track through a locking piece, the inner wall of a groove in the surface of the supporting plate is fixedly connected with a shaft rod, the exterior of the shaft rod is rotationally connected with a guide wheel, the magnetic suspension train directionally travels along the magnetic suspension track, and in the traveling process, the guide wheel rotates at a high speed under aerodynamic force of the traveling area of the magnetic suspension train. When the height fluctuation phenomenon of the maglev train occurs, the guide wheels have good isolation, auxiliary supporting and guiding performance on the maglev train, so that a good anti-dead-suction protection effect is achieved, and the driving safety is improved; and the drainage groove is formed in the bottom of the supporting plate and communicated with the groove, so that rainwater is conveniently drained, and the working area of the guide wheel is kept dry.

This invention relates to the field of sand making technology, specifically to a sand making device with controllable stone powder content. The device includes a return conveyor tailstock, a sand making structure on the side of the tailstock, a primary filtration structure inside the tailstock, and a secondary filtration structure on the side of the tailstock away from the primary filtration structure. The stone powder is initially filtered by the up-and-down vibration of a moving block. When a specific size needs to be filtered out, the pneumatic bar valve moves, driving the inverted V-shaped guide plate to a parallel state. At this time, the first telescopic plate continues to move, changing the parallel guide plate into a regular V-shape, causing the stone powder on the guide plate to contact the interior of the return conveyor tailstock. This reduces the volume and irregularity of the splashed stone powder through collisions, and accelerates the guidance of the stone powder towards the pneumatic bar valve for filtration, thus improving production efficiency and the filtration effect of the pneumatic bar valve.

The application discloses a kind of autonomous exploration method and device based on boundary and stratification, it is related to the field of robot autonomous exploration, this method includes in current two-dimensional grid map, according to the current position of robot setting a dynamic sliding window, it can be according to the uncertainty of environment, the distribution of obstacle and the motion speed of robot adaptive control the size of sliding window.In addition, the application selects a local target boundary point from the dynamic sliding window or selects a global target boundary point from each undetected global boundary point as a guide point, so that the RRT sampling algorithm plans a feasible path in the specified direction, improving the efficiency of autonomous exploration.In addition, the application selects the target boundary point from the local boundary point or from the global boundary point, stratifies the boundary point, reduces the number of sampling points to be evaluated, and improves the efficiency of autonomous exploration.

The utility model discloses a kind of dummy bar heads for casting aluminium, including dummy bar head main part and connecting rod, the dummy bar head main part is cylindrical structure, the dummy bar head main part inside is equipped with baffle, and baffle divides dummy bar head main part into upper cavity and lower cavity.The utility model is by adopting guide block, spring, plugging block, outer sealing sheet, when using guide block, since guide block and outer sealing sheet are fastened using bolt, thus when wear occurs, damaged guide block can be promptly disassembled and replaced by disassembling bolt, simultaneously, guide block is connected with adjusting groove by plugging block and spring, when wear occurs, guide block can be driven to move outward by the ejection of the deformation of spring, to make guide block continue to contact with crystallizer surface, continuously form guiding operation, avoid sealing failure caused by serious wear, ensure the use quality of structure, with the advantages of dummy bar guiding, good guiding effect, easy to maintain.

The application provides a titanium carbide composite film and a preparation method thereof. The preparation method comprises the following steps: providing a Ti3C2T x MXene and a basic casting solution of bipolar nanofibers, the surface of the bipolar nanofibers in the basic casting solution is a first electric property, which is electrostatically repelled from Ti3C2T x MXene; the basic casting solution is made into a composite precursor film; the composite precursor film is contacted with an acidic metal salt solution, so that the surface of the bipolar nanofibers in the composite precursor film is changed from the first electric property to a second electric property, which is electrostatically attracted from Ti3C2T x MXene; meanwhile, metal ions in the acidic metal salt solution are coordinated and / or chelated with Ti3C2T x MXene and the bipolar nanofibers, and a titanium carbide composite film is prepared. The titanium carbide composite film prepared by the method provided by the application has high densification and high orientation, and the strength and the electrical conductivity are synergistically improved.

This utility model relates to the field of door lock unlocking and discloses an unlocking device. The unlocking device includes a handle rod and a insert. One end of the handle rod is fixedly connected to the insert, and the other end of the handle rod extends away from the insert. The end of the insert away from the handle rod has a plug-in portion, which is configured as a rectangular insertion slot suitable for fitting the square steel handle. The handle rod serves as the user's grip base, driving the insert to be inserted into the lock box. The plug-in portion is specifically inserted into the lock box, and its rectangular insertion slot ensures precise alignment and fitting with the square steel handle inside the lock box. By twisting the handle rod, the insert drives the square steel handle to rotate, thereby opening the lock cylinder inside the lock box and achieving the unlocking purpose. The extension design of the handle rod away from the insert helps to form an effective lever arm, making it easier for the user to apply force. The unlocking device provided by this utility model has a simple structure, is easy to operate, and has good applicability.

The application provides a method for optimizing microstructure of a neodymium-iron-boron magnet rapid solidification sheet by using ultrasonic waves, and belongs to the technical field of neodymium-iron-boron alloy rapid solidification casting sheet. The application applies ultrasonic vibration on a copper roller by using an ultrasonic wave introduction device while the copper roller is rotating, then neodymium-iron-boron alloy melt is cast onto the surface of the copper roller to obtain a neodymium-iron-boron magnet rapid solidification sheet; the initial driving frequency of the copper roller is accurately designed and the amplitude is limited during the casting process, so that the nucleation rate of the magnetic phase grains near the roller surface of the rapid solidification sheet is increased, the growth of the magnetic phase grains in the direction from the near roller surface to the far roller surface is promoted, the magnetic phase columnar crystals are effectively refined, and the uniformity of the microstructure and the thickness consistency of the rapid solidification sheet are significantly improved, so that the effects of improving the nucleation rate and inhibiting the growth of coarse crystals are achieved, and finally the rapid solidification sheet with refined columnar crystals and good orientation is obtained.

The invention relates to a genotype-dependence-free dendrobium nobile genetic transformation method and application, and belongs to the technical field of genetic engineering. Comprising the following steps: taking embryonic calluses, protocorms or protocorm-like bodies of dendrobium nobile as explants; introducing the binary vector carrying the target gene into agrobacterium to prepare an infection solution, and infecting the explant; after co-culture, transferring to a culture medium containing a screening agent to obtain a resistant explant; and carrying out differentiation and rooting culture to obtain a transgenic plant. By systematically optimizing a plant growth regulator combination, an agrobacterium strain type, an infection mode and an auxiliary screening mode, an efficient and stable genetic transformation system which does not depend on a specific genotype and takes multiple types of explants as receptors is established for the first time, and the problems that a traditional method is high in genotype dependency and limited in tissue type are solved; the method shows good applicability and repeatability in a plurality of dendrobium hybrids, and provides a general technical platform for gene function research and molecular breeding.

The application relates to the technical field of drying equipment, and particularly discloses an adjustable-angle spoiler for a mixed-flow dryer, which comprises a mounting frame, a flow splitter and an adjusting mechanism, the mounting frame is used for being mounted on the top sidewall of a drying warehouse, rotating rods are arranged on the mounting frame along the length direction, the rotating rods are rotationally connected to the mounting frame along the length direction, a plurality of rotating rods are arranged along the width direction of the mounting frame, and the flow splitter is arranged on the rotating rods; the adjusting mechanism is arranged on the mounting frame, and the adjusting mechanism is used for synchronously driving all the rotating rods to reciprocatingly rotate in the forward and reverse directions. The application has the effect of improving the fixed connection of the airflow flow splitter and the supporting frame, fixing the flow track of the airflow, easily existing a drying dead angle, being different in drying speed of materials, being uneven in drying, and influencing the drying quality of the materials.

The utility model relates to mould accessory technical field, and disclose a kind of slider track extension mould frame, the utility model is by slider track extension, and the size of mould frame body remains unchanged, while meeting the length demand of slider track, avoid the increase of mould frame size.This, reduce the consumption of mould frame material, reduce processing cost, while also facilitate the transportation, installation and use of mould frame, improve the overall economy and practicality of mould, the length of slider track is greater than the length of traditional and the slider track matched with this mould frame body, can provide longer distance guiding and support for longer stroke slider, effectively avoid the problems such as deviation, shaking of slider in sliding process, ensure the accuracy and stability of slider movement, improve the machining precision and production efficiency of product, good compatibility, connecting structure is fixed by bolt on mould frame body, and connecting mode is simple and reliable, easy to install and disassemble, and high strength wear resistance is good.

The invention discloses a high-performance aluminum alloy friction stir welding seam quality detection device, and relates to the technical field of welding quality detection.The high-performance aluminum alloy friction stir welding seam quality detection device comprises a welding seam detection mechanism, a displacement mechanism is arranged at the top of the welding seam detection mechanism, a conveying mechanism is arranged at the bottom of the displacement mechanism, and clamping turnover mechanisms are arranged on the two sides of the conveying mechanism; the weld joint detection mechanism comprises a detector, visual probes are fixedly connected to the two sides of the detector, and an ultrasonic array probe is fixedly installed at the bottom of the detector. Through multi-direction and multi-angle adjustment, the detection angle is increased, the detection range is further increased, the detection effect is guaranteed, the detection efficiency is effectively improved, the overturning function is achieved through control of the overturning motor, a clamped object can be rapidly adjusted, and the detection efficiency is improved. And the multi-surface gap detection function can be realized.

A loom yarn hook device, comprising a shears support frame, a cantilever beam, a yarn hook hanger and a yarn hook, the cantilever beam is inserted into the shears support frame, the yarn hook hanger is fixed on the cantilever beam, the cantilever beam is fixed with a yarn hook fixing rod, the rod body of the yarn hook fixing rod is fixed with the yarn hook on the side away from the shears support frame, the yarn hook hanger is provided with a strip-shaped hole, the yarn hook fixing rod is provided with a blocking cover corresponding to the limiting block slot on the periphery of the strip-shaped hole, and the end of the yarn hook fixing rod on the side of the recess in the blocking cover is screwed with a second locking nut after passing through the strip-shaped hole. The yarn hook device creatively provides a positioning structure between the yarn hook hanger and the yarn hook fixing rod, which is not easy to loosen horizontally and vertically, is firmly positioned, and does not produce burrs on the guide part due to up-down movement positioning, solves the defects that the yarn hook fixing rod of the existing yarn hook device is not firmly positioned and is easy to produce burrs due to movement, and can effectively ensure the guiding effect of the fabric or yarn.

The utility model relates to the technical field of medical instruments, in particular to a mesh basket part of a calculus removing mesh basket and a calculus removing mesh basket system.The mesh basket part comprises a connecting part, and the connecting part is connected with a traction part of the calculus removing mesh basket system so as to drive the mesh basket part of the calculus removing mesh basket to act; the main supporting arm is a main body part of the mesh basket part; one ends of the main supporting arms are connected with the connecting part, and the other ends of the main supporting arms are connected in a matched mode to form a net basket part.

The invention discloses a polyamide 12 draw-textured yarn with both high resilience and excellent dimensional stability and a preparation method thereof, polyamide 12 slices with the relative viscosity of 2.0-3.5 are dried until the water content is lower than 700 ppm, melt spinning is performed at the temperature of 210-245 DEG C, and winding is performed at the spinning speed of 1000-4500 m / min to prepare a pre-oriented yarn; then the pre-oriented yarn subjected to hot stretching is subjected to false twisting deformation, the draw ratio is 1.20-1.80, the D / Y ratio is 1.5-2.4, the temperature of a deformation hot box is 100-170 DEG C, the temperature of a microwave-assisted shaping hot box is 120-160 DEG C, and therefore the polyamide 12 stretch-textured yarn is obtained. According to the scheme, by optimizing the pre-oriented yarn structure of the polyamide 12 and precisely controlling the texturing process of deformation and heat setting, the problems of narrow processing window and poor stability of the polyamide 12 in high-speed false twist deformation are solved; the prepared polyamide 12 draw-textured yarn not only retains the characteristics of low water absorption and light weight of the original polyamide 12, but also has high elasticity and excellent dimensional stability, and is suitable for the fields of high-end sportswear, swimwear, medical textiles and the like.

The utility model relates to the technical field of lamination paper cup processing, and discloses a film coating mechanism for lamination paper cup processing, which comprises a lamination machine, support frames are fixedly connected to the outer walls of the two opposite sides of the lamination end of the lamination machine, mounting frames are arranged below the two support frames, an upper mounting block is pushed upwards manually, and the upper mounting block is pushed upwards manually. The upper mounting block compresses the spring in the ascending process and drives the upper guide wheel rotationally connected to the upper mounting block to ascend, and at the moment, one side edge of a paper cup raw material to be processed is placed between the upper guide wheel and the lower guide wheel in the same group; when the upper surface and the lower surface of one side of a to-be-processed paper cup raw material are located between the upper guide wheel and the lower guide wheel in the same group, no thrust is applied to the upper mounting block, at the moment, the spring releases elastic force, and at the moment, the limiting sliding block and the limiting sliding groove prevent the upper mounting block from excessively moving in the descending process; and the upper guide wheels tightly abut against the upper surface of one side of the paper cup raw material to be processed and are matched with the corresponding lower guide wheels, so that a stable guide structure is formed.