25results about How to "Spin easily" patented technology

The invention provides welding equipment for machining engineering machinery parts, and relates to the technical field of mechanical welding, the welding equipment comprises a bottom plate, and the top of the bottom plate is fixedly connected with a power box. A mechanical welding arm is adjusted by arranging a first motor, a driving synchronous wheel, a threaded sleeve and other parts, meanwhile, angle adjustment is conducted on a rotating box through a rotating motor, a belt wheel and other parts, an adjusting motor is started, the adjusting motor rotates to drive a worm to rotate, and therefore a worm wheel is driven to rotate; a worm wheel rotates to drive a positioning rod to rotate, a clamping box rotates through a limiting ring and a ball, the horizontal angle of an accessory is adjusted, an electric push rod is started, a rotary disc is driven to rotate through the electric push rod, and then a pull strip is driven to pull a clamping block to efficiently clamp and fix the accessory, so that the efficient fixing effect is achieved; and the welding efficiency is improved.

The utility model relates to the technical field of dust-free workshops, in particular to an atomizing and humidifying device which comprises an industrial humidifier, a mist outlet connector is arranged on the upper side of the industrial humidifier, a mist outlet pipe is arranged on the upper side of the mist outlet connector, an adjusting mechanism is arranged at the joint of the mist outlet pipe and the mist outlet connector, and the adjusting mechanism comprises an inserting pipe and a box body. An inserting pipe vertically penetrates through the left side in the box body, a clamping sleeve outer pipe is fixedly arranged on the lower side of the annular face of the inserting pipe, the lower end of the inserting pipe is inserted into the mist outlet connector, and a worm wheel is assembled on the annular face of the inserting pipe in the area in the box body. The mist outlet angle of the mist outlet pipe can be automatically and rotationally adjusted through the adjusting mechanism, the mist outlet angle can be conveniently adjusted to different position angles, automatic adjustment of the angle of the mist outlet pipe is achieved, the trouble of manual adjustment is avoided, the operation process is simplified, and the working efficiency is improved. And meanwhile, the using effect and convenience of the industrial humidifier are remarkably improved.

The invention discloses a thermal insulation multiphase ceramic fiber aerogel used in an ultrahigh temperature environment of 1800 DEG C and a preparation method of the thermal insulation multiphase ceramic fiber aerogel. The preparation method comprises the following steps: mixing basic zirconium carbonate, glacial acetic acid and a yttrium source according to a specific molar ratio to prepare a zirconium precursor solution; the preparation method comprises the following steps: adding an aluminum source and a silicon source into a solvent according to a specific molar ratio, completely dissolving to obtain a silicon-aluminum solution, condensing and refluxing until the solution is completely clarified to prepare a silicon-aluminum precursor solution, mixing the silicon-aluminum precursor solution with the silicon-aluminum precursor solution according to a specific molar ratio, solating to obtain a zirconium-silicon-aluminum ternary sol, adding a spinning aid into the zirconium-silicon-aluminum ternary sol to obtain a zirconium-aluminum-silicon ternary spinning solution, and carrying out spinning on the zirconium-silicon-aluminum ternary spinning solution to obtain the zirconium-silicon-aluminum ternary spinning solution. And carrying out electrostatic spinning or centrifugal spinning on the zirconium-aluminum-silicon ternary spinning solution to obtain a zirconium-aluminum-silicon fiber aerogel precursor, collecting the zirconium-aluminum-silicon fiber aerogel precursor, heating to 1000-1300 DEG C, carrying out heat preservation, and cooling along with a furnace to obtain the aluminum oxide-zirconium oxide-mullite fiber ceramic aerogel with a three-dimensional structure. The aerogel prepared by the method is good in flexibility and has a good three-dimensional pore structure, and the fiber surface is smooth.

The utility model relates to the field of charge-discharge motors, and discloses a portable multichannel charge-discharge motor, which comprises a charge-discharge all-in-one machine. The plurality of integrated seats are mounted on the charging and discharging all-in-one machine, the plurality of integrated seats are distributed in a linear array, the cross section of each integrated seat is of a polygonal structure, and different charging and discharging interfaces are arranged on different surfaces of the integrated seats; the integrated base is arranged to rotate on the charging and discharging all-in-one machine and used for switching the charging and discharging interfaces on the charging and discharging all-in-one machine. According to the utility model, the plurality of integrated seats are designed, and different charging and discharging interfaces are arranged on different surfaces of each integrated seat, so that the interface diversity of the charging and discharging machine is improved, and when a plurality of devices with the same interface type are charged, the interfaces with the same type can be rotated to a position convenient to operate by rotating the integrated seats; therefore, the charging requirements of a plurality of devices are met.

The utility model relates to the field of high-voltage electrostatic spinning devices, and discloses a double-sided high-voltage electrostatic spinning device which comprises a box body, connecting bases are arranged on the two sides in the box body, and a placing base is fixedly connected to the upper end of the side, close to the center of the box body, of each connecting base. A second electric telescopic rod is fixedly connected to the side, away from the placing base, of the connecting base, a movable plate is fixedly connected to the output end of the second electric telescopic rod, supporting plates are arranged at the front end and the rear end in the box body, and a receiving plate is connected between the supporting plates on the two sides in a clamped mode. According to the utility model, the solution can be simultaneously sprayed out from the injectors on the two sides through the placement seats on the two sides, fiber webs are formed on the two sides of the receiving plate, and the fiber webs can pass through the clamping grooves of the supporting plates when being extruded inwards through the clamping blocks and are clamped on the two sides of the clamping grooves after being loosened, so that relatively humid air can be conveyed into the dehumidifier for dehumidification through the air inlet pipeline; the influence of over-high humidity on the fiber shape is prevented.

The utility model discloses a center line rubber lined butterfly valve with a self-cleaning function, which comprises a valve body, a round hole is arranged on the valve body, a valve seat is fixed at the round hole, an inner hole is arranged on the valve seat, a sealing rubber layer is fixed at the inner hole, V-shaped guide parts are arranged on the inner side and the outer side of the sealing rubber layer, and a straight sealing contact part is arranged in the middle of the sealing rubber layer. A valve rod is installed at the position of the valve body, a butterfly plate located at the position of an inner hole is fixed to the valve rod, a pair of symmetrically-arranged front plates is fixed to the butterfly plate, the diameter of the outer contour formed by the two front plates is consistent with the diameter of the outer contour of the butterfly plate, the section of the outer contour of the butterfly plate and the section of the outer contour of the two front plates are each in an arc shape, and the butterfly plate is tightly matched with the position of the sealing contact part. A worm and gear speed reducer is installed on the valve body, and a hand-cranking wheel is fixed to an input shaft of the worm and gear speed reducer. The sealing device is ingenious and reasonable in structural design, capable of sealing the surface of the rubber layer for automatic cleaning, better in sealing effect and worthy of application and popularization.

The utility model provides a filter element quick-release tool for a process filter, which comprises a main body and a wrench mouth, and the main body is a rod piece; the wrench port is arranged at the tail end of the main body, a through port is formed in the radial direction of the main body, a bayonet is formed in one side parallel to the axial direction of the main body, and the bayonet of the wrench port is communicated with the through port; wherein the wrench port penetrates through the cross brace of the filter element through the bayonet and is matched with the through port to limit the cross brace. According to the utility model, the L-shaped special-shaped wrench mouth is adopted, so that the filter element cross arm can be conveniently pulled out from the filter after being hooked by an L-shaped block in the dismounting process, and the problems that the efficiency of dismounting the filter element by using a movable wrench by a maintainer is low, the fastening effect of the filter element after remounting is poor, leakage is easily caused, and the process filtering precision is reduced are solved; and the risk hidden danger that a worker enters a limited space in the process filter to assemble and disassemble the filter element is also reduced.

The utility model discloses a transmission device for a labeling machine, which comprises a labeling machine body, the top of the labeling machine body is fixedly provided with a transmission belt, and the top of the transmission belt is fixedly provided with a support. The twisting disc is firstly rotated, the twisting disc drives the round rod to rotate, the round rod drives the winding wheel to rotate, the winding wheel rotates to drive the steel rope to wind, the steel rope is wound to drive the transverse plate to move upwards, the transverse plate drives the limiting block to move, the pressing roller can move upwards, and then an object is placed at the bottom of the pressing roller. Then a hollow screw sleeve is rotated, meanwhile, a hollow screw rod is controlled by a single hand to avoid rotation, the hollow screw sleeve drives the hollow screw rod to move downwards, the pressing force of a pressing roller can be adjusted through a pressing ring, the label can be conveniently fixed, an existing mode that the label is not fixed and pressed is replaced, and therefore the label can be fixed and pressed; and the tightness between the label and the article is ensured.

The present invention discloses a polyester fiber production process without antimony metal catalysis, and relates to the technical field of organosilicon materials. The present invention discloses a polyester fiber production process without antimony metal catalysis, comprising the following steps: using terephthalic acid and ethylene glycol as raw materials for esterification reaction, continuously adding a titanium catalyst during the esterification reaction to obtain an esterification product; inputting the esterification product into a pre-polycondensation kettle for pre-polycondensation reaction to obtain an oligomer; inputting the oligomer into a polycondensation kettle for polycondensation reaction to obtain a polycondensate; after the polycondensate is spun and post-finished, a polyester fiber is obtained; the present application uses a self-made titanium catalyst to replace the traditional antimony catalyst, which not only accelerates the reaction process, but also leaves no antimony metal residue in the product. The titanium catalyst prepared in the present application gets rid of the defects of the traditional titanium catalyst that is easily hydrolyzed to form TiO2, causing the polyester product to turn yellow, and has low thermal stability.

The utility model is suitable for the technical field of infusion needles, and provides an intravenous infusion needle with a protective sleeve, which comprises a catheter connector, an infusion needle and a protective piece, the protection piece comprises a protection sleeve; an inner spiral groove is formed in the inner side, close to the opening, of the protective sleeve. An outer spiral groove is formed in the outer wall of the side, close to the infusion needle, of the catheter connector. A guide cover is arranged on one side, opposite to the infusion needle, of the protective sleeve; by arranging the protection piece, the infusion needle can be protected from being polluted, the contact with the external environment is reduced, and therefore the infection risk is reduced, the annular inner spiral groove in the inner side of the protection piece is matched with the annular outer spiral groove of the catheter connector, tight and stable connection is ensured, and the protection sleeve is allowed to easily rotate to adjust the position; meanwhile, enough stability is kept, falling or leakage is prevented, the trumpet-shaped design of the guide cover ensures smoothness and safety during insertion, puncture caused by too small caliber is prevented, and the use safety is improved.

The intelligent supporting frame comprises a lifting base, a supporting plate is fixed to the upper end of the lifting base, a rubber pad is connected to the upper end of the supporting plate through screws, a pair of handles are symmetrically and rotationally connected to the left end and the right end of the supporting plate, and rotating shafts are fixed to the front end and the rear end of each handle. When a patient needs to walk and support, the handles are rotated by 180 degrees, the two handles can rotate at the same time, the rotation directions are opposite, after a rotary encoder detects the rotation angles of the handles, a controller controls an electromagnet to be powered on, at the moment, the electromagnet attracts a guide block to move leftwards, so that a tooth block is engaged and clamped with a third gear, and then the patient can walk. When a patient needs to sit, the middle of the rubber pad is pressed, the pressure sensor senses the pressure, the controller controls the electromagnet to be powered off, at the moment, after the handles are rotated to be downward, the patient can sit on the rubber pad to have a rest, and multiple functions are achieved.

This invention discloses a silicon carbide fiber precursor polycarbosilane and its preparation method, belonging to the field of polycarbosilane preparation technology. The preparation method of the silicon carbide fiber precursor polycarbosilane includes the following steps: Step 1: Preparing a Grignard reagent; Step 2: Adding an organic alkane to tetrahydrofuran, stirring and mixing, then slowly adding it to the Grignard reagent, stirring and reacting; after the reaction is complete, heating to room temperature, adding a composite organic auxiliary agent, stirring and reacting; after the reaction is complete, quenching the reaction, separating the liquids, washing, and drying to obtain a prepolymer; Step 3: After vacuum distillation of the prepolymer, transferring it to a reaction vessel, heating and polymerizing it under argon atmosphere; after the reaction is complete, adding it to toluene, dissolving, filtering, precipitating, and drying to obtain the silicon carbide fiber precursor polycarbosilane. The polycarbosilane prepared by the above method has excellent thermal stability and high-temperature mechanical properties.

The present invention belongs to the technical field of modified asphalt, and specifically relates to a regenerated natural polymer-based solid-solid phase change fiber and its preparation method and application. The present invention uses natural polymer materials as raw materials, obtains natural polymer-based solid-solid phase change materials by chemical grafting with phase change materials, and obtains regenerated natural polymer-based solid-solid phase change fibers by solution spinning. Phase change materials have latent heat properties and can store heat and regulate temperature. Phase change fibers are added to asphalt. When the ambient temperature rises to its phase change temperature, the phase change fibers absorb a large amount of heat and store it, improving the high temperature stability and durability of asphalt and asphalt mixtures, and can reduce high temperature diseases of the road surface while improving road performance; when the ambient temperature drops to its phase change temperature, the phase change fibers release a large amount of heat, improve the low temperature resistance and low temperature stability of the road surface, reduce low temperature cracks, and improve the temperature stability of asphalt through phase change fibers.

This invention discloses an electric-assisted rotation method, apparatus, computer device, and readable storage medium, comprising: continuously acquiring the torque direction and torque value of a central control screen; if the torque value is determined to meet a preset torque condition, generating target rotation information in at least one degree of freedom based on the torque direction and the torque value; rotating the central control screen according to the target rotation information; and stopping the rotation of the central control screen if the torque value is determined not to exceed a torque threshold. This invention detects the force applied by the user during manual rotation using a torque sensor, and the motor intelligently provides a corresponding angular velocity based on the torque, enabling the central control screen to rotate easily and quickly to the target angle. Simultaneously, the user can rotate the central control screen to their ideal and comfortable angle based on their feel.

The application provides an imidazole ring-containing polyimide / ZIF-8 composite nanofiber membrane and a preparation method and application thereof, and the preparation method comprises the following steps: preparing an imidazole ring-containing polyamide acid spinning solution; preparing an imidazole ring-containing polyamide acid nanofiber membrane by using the imidazole ring-containing polyamide acid spinning solution through an electrostatic spinning method; performing thermal imidization treatment on the imidazole ring-containing polyamide acid nanofiber membrane to obtain an imidazole ring-containing polyimide nanofiber membrane; and repeatedly immersing the imidazole ring-containing polyimide nanofiber membrane in a ZIF-8 solution for several times, and then drying to obtain the imidazole ring-containing polyimide / ZIF-8 composite nanofiber membrane. The imidazole ring-containing polyimide / ZIF-8 composite nanofiber membrane anchors ZIF-8 on the polyimide fiber through cation-π interaction, and effectively improves the binding force between the polyimide and ZIF-8.

The utility model discloses a portable permanent magnet synchronous motor binding end winding tool structure, which comprises a base, a rotating upper seat, a support, balls and screws, the base is provided with the rotating upper seat capable of rotating, the matching surfaces of the base and the rotating upper seat are provided with opposite annular grooves, the balls are arranged in the annular grooves, and the screws are arranged on the support. The base and the rotating upper seat are staggered and complementary by adopting a concave-convex structure, a support for positioning and supporting a stator winding is mounted on the rotating upper seat, and the base and the rotating upper seat are locked and positioned through screws. According to the mode, the stator assembly can be positioned and supported, the stator assembly can be rotated easily, binding and fixing are facilitated, an operator does not need to walk back and forth, more labor and time are saved, and the production working efficiency is improved.

This utility model discloses a lifting device, including a base and a top support mechanism. The top support mechanism is disposed on the base and includes a first support plate that can be raised and lowered relative to the base and a second support plate disposed on the first support plate that can rotate relative to the first support plate. The base includes a support and a platform. The support is composed of several branch pipes, which are detachably connected by connecting buckles. The platform is detachably disposed on the upper end of the support for mounting the top support mechanism. This utility model uses lean pipes to replace traditional aluminum and square steel to reduce material costs. The base branch pipes are detachable by connecting buckles with protrusions and screw holes. The platform and support are also detachable, reducing transportation and disassembly costs, eliminating welding during installation, and requiring only the replacement of a single component for maintenance. The composite structure of the support enhances the strength of the lean pipes. The height of the top support cylinder is adjusted, and the second support plate rotates via a protruding column, equipped with track rollers and a protruding edge. The support legs are adjustable to adapt to the site, meeting the requirements of cost, stability, and flexibility.

The utility model discloses a spin-coating suction cup of an optical product, which comprises a sleeve, the sleeve is provided with a clamping groove, one side of the clamping groove is connected with a rotary supporting column of a spin-coating machine, the other side of the sleeve is connected with a suction cup base, a tooth-shaped groove is arranged in the suction cup base, a sliding rail is arranged in the tooth-shaped groove, a square sliding block is arranged on the sliding rail, and the square sliding block is connected with the clamping groove. A cylindrical supporting column is arranged on one side of the square sliding block and embedded in the edge of the square sliding block, a T-shaped ejector rod is further arranged on the cylindrical supporting column, a spherical round head is arranged on the top of the T-shaped ejector rod and embedded in the middle of the cylindrical supporting column, and an optical product is placed in the center of the suction cup base. An optical product is clamped by the four cylindrical supporting columns, so that the rectangular sheets with different sizes are spin-coated, are convenient to take and place, are convenient to fix and spin-coat and have other related purposes, are convenient for personnel to spin-coat the products, have effective appearance protection of flying sheets, knocking and breaking and the like on the products, realize spin-coating of the rectangular sheets with different sizes, and reduce the investment of equipment.

The invention discloses mesophase pitch prepared through catalysis of metal-free superacid and a preparation method of the mesophase pitch, and belongs to the technical field of high polymer materials. Comprising the following steps: in an inactive atmosphere, contacting metal-free superacid serving as a catalyst with polycyclic aromatic hydrocarbon, carrying out prepolymerization reaction to obtain a prepolymerization system, adding alkali liquor until the prepolymerization system is neutral, washing with water to remove the catalyst and metal ions, distilling to remove small molecules, placing the product in a closed container in the inactive atmosphere, and carrying out vacuum drying to obtain the polycyclic aromatic hydrocarbon. And carrying out a thermal polycondensation reaction to prepare the mesophase pitch. According to the preparation method, the metal-free superacid can be conveniently removed from the system, the subsequent reaction equipment cannot be corroded, the experiment operation requirement is low, the experiment safety is high, the product without the catalyst basically has no metal residue, the method has great advantages in synthesis of high-purity products, and compared with a metal catalysis system, the method has the advantages that the cost is low, and the method is suitable for industrial production. The content of the obtained intermediate phase is higher, the intermediate phase distribution is more uniform, and the intermediate phase is of a wide-area structure.

The utility model relates to a spiral medicine feeder for cattle, which comprises a straight round tube and a rotating shaft, the rotating shaft is arranged in the straight round tube, a spiral blade is covered on the rotating shaft in a surrounding manner, a baffle is arranged at one end of the rotating shaft, a seal head cover is arranged at one end of the straight round tube, and a discharge port is arranged at the other end of the straight round tube. A baffle is arranged on the end socket cover, a spigot is formed in the inner wall of the end socket cover and abuts against the baffle, the rotating shaft penetrates through the center of the end socket cover to be connected with a handle, a feeding hopper is arranged at the end, close to the end socket cover, of the straight round pipe, a feeding port is formed in the center of the feeding hopper, and the diameter of the end socket cover is the same as that of the straight round pipe. And the spiral blade is exposed at the discharge hole. According to the cattle feeding device, traditional Chinese medicine and medicine residues can be conveniently fed to cattle, physical strength and time are saved, the structure is simple, different types of medicine can be conveniently fed to the cattle, and the application range is wide.

The invention discloses a sludge cleaning device for a condensation pipeline, and relates to the technical field of condenser pipeline cleaning, the sludge cleaning device comprises a condenser body, a fixed support, a movable rotating plate, a movable sliding plate, a movable sliding seat, an ultrasonic generator, a filter box, a filter screen and a water pump, the fixed support is connected with the condenser body, and the movable rotating plate is hinged to the fixed support; the movable sliding plate is in sliding fit with the movable rotating plate in the vertical direction, the movable sliding seat is in sliding fit with the movable sliding plate in the horizontal direction, the ultrasonic generator is fixedly connected with the movable sliding seat, and the ultrasonic generator can penetrate through the wall of a condensation pipeline and spread in water flow in the pipeline to form strong impact force by means of the cavitation effect of ultrasonic waves. The binding force of dirt and the inner wall of the pipeline is effectively destroyed, so that the dirt quickly falls off. Through sliding fit of the movable sliding plate and the movable sliding seat, the ultrasonic generator can flexibly move to all corners, including a bent part and a dead angle area, of the condensation pipeline, it is guaranteed that no dead angle exists in cleaning, and the cleaning efficiency is improved.

The utility model discloses a handheld portable electrostatic spinning device which comprises a shell, a rechargeable battery, a device switch, an LED work indicating lamp, an injector, a boosting module, a stainless steel needle head, a high-voltage positive electrode and a high-voltage negative electrode. The shell is in a pistol shape and comprises a lower section shell, a middle section shell and a front section shell which are detachably connected with one another, and the middle section shell is integrally formed by a bent part and an injector support part arranged above the bent part; a hollow stainless steel needle head is arranged at the front end of the injector, the high-voltage positive electrode is arranged on the stainless steel needle head, the front end of the stainless steel needle head penetrates through the front-section shell, and the high-voltage negative electrode is arranged outside the shell; the positive electrode of the boosting module is electrically connected with the high-voltage positive electrode, and the negative electrode of the boosting module is electrically connected with the high-voltage negative electrode. According to the handheld portable electrostatic spinning device, the spinning solution is directly sprayed on the screen window to form a film, the operation is simple and convenient, and the handheld portable electrostatic spinning device has good film-forming property.

The utility model discloses a spinning pre-interlacing device installation structure which comprises a spinning box body, an oiling device, a hot roller set, a main interlacing device and a winding machine which are sequentially connected, the hot roller set at least comprises a first pair of hot rollers and a second pair of hot rollers, and the pre-interlacing device is installed between the first pair of hot rollers and the second pair of hot rollers. Drafted yarns enter the first pair of hot rollers from the spinning manifold through the oiling device, then enter the second pair of hot rollers after passing through the pre-interlacer, enter the main interlacer and then are wound and formed on the winding machine. According to the utility model, the pre-interlacing device is adjusted from the position between the oiling device and the first pair of hot rollers to the position between the first pair of hot rollers and the second pair of hot rollers, so that through tests, the cohesion performance of spinning can be further improved, broken filaments are reduced, and the quality of spinning products is improved.