35results about How to "Reduce intertwining" patented technology

The invention relates to a high voltage static power shuttle nano-spinning device. The device is composed of a spinneret nozzle, a liquid storage cavity, a metal valve needle, an adjusting cap, a liquid supply tank, a multifunctional high voltage static generator, a cavitation machine, a cavitation machine deckle rod, a positive pressure power pump, a positive pressure power pipe, a siphon type feed pipe, a net structure electrode, a receiving substrate, an unwinding roller, a winding roller, nanofiber, a constant temperature system, a ventilating system, an illuminating system and an environment isolation box. A high voltage static power shuttle body is formed by the spinneret nozzle, the liquid storage cavity, the metal valve needle, the adjusting cap and a shell. A high voltage static power shuttle is jointly formed by the spinneret nozzle, the liquid storage cavity, the metal valve needle, the adjusting cap, the shell, the multifunctional high voltage static generator, a liquid storage tank, the siphon type feed pipe, the positive pressure power pipe, the cavitation machine, the cavitation machine deckle rod, an output line, the ventilating system, the illuminating system, a humidity and temperature regulator and the box. Through the establishment of the high voltage static power shuttle and the adjustment of the size of the spinneret nozzle, the static field intensity, the pressure and the frequency of the cavitation machine, the spinning speed and the diameter of the nanofiber can be adjusted, and the high voltage static power shuttle nano-spinning device has the advantages of being high in spinning efficiency, free of blocking, easy to clean, safe, reliable, easy and convenient to operate, environmentally friendly and the like.

The invention provides boron adsorption resin as well as a preparation method and application thereof, and the preparation method comprises the following steps: 1) uniformly mixing an oil phase consisting of glycidyl methacrylate, a cross-linking agent, a pore-foaming agent and benzoyl peroxide, dispersing the oil phase in salt water containing a dispersing agent, carrying out suspension polymerization reaction, and separating from reaction liquid to obtain copolymerized beads; and 2) uniformly mixing the copolymerized beads, water and a polyhydroxy compound, and carrying out hydrothermal reaction to obtain the boron adsorption resin. According to the method disclosed by the invention, an organic solvent which is difficult to degrade is not used, the method is green and environment-friendly, the process operation is simple and convenient, and the resin has better pollution resistance and longer service life, and has higher adsorption selectivity and adsorption capacity on boron in the salt lake brine.

The invention relates to a window side wall water seepage detection device for constructional engineering. The device comprises a movable base, a rotating pipe rotationally connected to the movable base around the axis of the rotating pipe, a driving mechanism for driving the rotating pipe to rotate, a liquid conveying mechanism for conveying liquid into the rotating pipe, spraying pipes hinged toone end of the rotating pipe, and a folding and unfolding mechanism for adjusting the spraying pipes to be unfolded or folded, wherein the multiple spraying pipes are distributed around the axis of the rotating pipe. The window side wall water seepage detection device has the effect of reducing potential safety hazards existing when water seepage detection is conducted on the window side wall.

The invention discloses an antistatic polyester film, which comprises a base material and an antistatic layer on at least one surface of the base material, and the antistatic layer is formed by uniformly dispersing the following raw materials in percentage by weight: 15-30% of aqueous carbon nanotube dispersion liquid, 5-15% of modified acrylic resin emulsion, 5-15% of modified acrylic resin emulsion, 5-15% of polyester resin, 5-15% of polyester resin, 5-15% of polyester resin, 5-15% of polyester resin, 5-15% of polyester resin, 5-15% of polyester resin, and the balance of polyester resin. 0.1%-3% of a cross-linking agent, 0.1%-1% of a wetting agent and 51%-80% of deionized water. The preparation method comprises the following steps: modifying acrylic resin by utilizing epoxy resin and a catalyst to obtain epoxy modified acrylic resin emulsion, and reacting epoxy groups in the epoxy modified acrylic resin emulsion with the acrylic resin to form a block copolymer; a three-dimensional network structure is formed by thermocuring in online coating and transverse synchronous stretching and shaping of a base material with water-dispersed carbon nanotubes and a cross-linking agent, so that the cross-linking density is improved, mutual winding and lap joint of the carbon nanotubes are effectively reduced, the adhesive force between a bottom coating and a functional coating is increased, and excellent chemical stability is achieved.

The invention provides a low-viscosity high-speed cigarette adhesive prepared from seed emulsion, a vinyl acetate monomer, an oxidant, an initiator, a capturing agent, an alcohol compound, a pH regulator and water, wherein the seed emulsion is one or combination of more of vinyl acetate-ethylene emulsion, vinyl acetate-acrylate emulsion, a vinyl acetate homopolymerized emulsion, the seed emulsionhaving solid content of 40.0-65.0% and viscosity of 500-5000 mPa*s. In the invention, firstly, the protective colloid in the emulsion is broken to reduce the viscosity, and then the stable emulsion system is reconstructed through polymerization, and the generation quantity of new emulsion particles is controlled, thus producing the emulsion. The viscosity of the emulsion can be lowered to 200 mPa*s, which not only satisfies the cigarette lap adhesion at the machine speed of 14,000-16,000/min but also can be used for adhesion of common materials, such as paper processing, coating decoration, nonwoven clothes, carpets, etc. The adhesive is simple in preparation method and is suitable for industrial production.

The invention discloses amino-silicone oil modified waterborne polyurethane and a preparation method thereof. The amino-silicone oil modified waterborne polyurethane comprises the following raw materials in parts by weight: 12.5-14.7 parts of polyester polyol, 4.88-5.0 parts of polyisocyanate, 0.02-0.04 part of a catalyst, 0.9-1.1 parts of a hydrophilic chain extender, 0.6-1.5 parts of a modifier,9.0-11.0 parts of a solvent, 0.6-0.8 part of a neutralizer, 0.02-0.04 part of a post-chain extender and 42.0-48.0 parts of deionized water. The amino-silicone oil modified waterborne polyurethane hasmaximum water absorption rate of 7.8%, maximum tensile strength of 30.28 MPa, and minimum elongation at break of 458.93%. The preparation method comprises the following steps: subjecting polyester polyol to reacting with polyisocyanate under the action of the catalyst to obtain a prepolymer; introducing the chain extender on the basis of the prepolymer, subjecting the prepolymer to reacting withthe modifier, and introducing alkoxy-terminated amino silicone oil into the prepolymer; and finally, adding the deionized water for high-speed emulsification to prepare the modified amino-silicon oilmodified waterborne polyurethane with good emulsion stability and latex film water resistance. The method is simple in process step, easy to operate and good in repeatability.

The invention discloses a yarn feeding flexible clamping device for a textile machine, and belongs to the field of textile machines. Compared with the prior art that a yarn and a clamp are in contactwith each other, so that relative sliding is caused, the yarn feeding flexible clamping device has the advantages that through the rotation of a clamp, the contact between a yarn and the clamp is converted from sliding friction to rolling friction, the relative sliding of the yarn and the clamp is greatly reduced, the possibility of generating yarn burrs is reduced, meanwhile, the yarn feeding condition is monitored in a real-time manner, data is collected by an image pick-up device, and is analyzed by a master console, the rotational speed of an electric motor is controlled by a controller, and when being fed, the yarn is always kept in the tightening state, so that on one hand, the possibility that the yarn is wound around the clamp can be reduced, on the other hand, the yarn feeding state is conveniently monitored in a real-time manner by workers, and the overall operation of the textile machine is beneficially controlled by the workers.

The invention discloses an antiskid permeable pavement which comprises a pavement base layer and an adhesive stone surface layer paved on the surface of the pavement base layer, the adhesive stone surface layer is prepared from the following raw materials in parts by weight: 2-5 parts of a component A, 3-7 parts of a component B and 95-105 parts of aggregate; the component A is prepared from the following raw materials: polyester of aliphatic dicarboxylic acids, polyether polyol, dipropylene glycol, neopentyl glycol, linoleic acid, castor oil, 2,2,3,3,4, 4,5,5-octafluoro-1-amyl alcohol, epoxyresin E-44, epoxy resin E-14, diphenyl-methane-diisocyanate, hexamethylene diisocyanate, nano silicon dioxide, nano calcium carbonate, boron carbide and modified lignin; the component B is prepared from the following raw materials: 1,8-diazacyclo[5,4,0]undecene-7 and triethanolamine. The anti-skid permeable pavement provided by the invention has the advantages of good skid resistance and water permeability, excellent aging resistance, short curing time and long service life.

The invention relates to the technical field of core tube beam columns, in particular to a core tube beam column structure for constructional engineering. The core tube beam column structure comprisesa frame, a cylinder, a pair of sliding rails, a pair of travelling cars, a pair of support seats, a fixing plate, two pairs of fixing brackets and a pair of support rods, wherein the cylinder is arranged in the frame; a pair of first grooves is formed in a side wall surface in the cylinder; the pair of sliding rails is arranged in the first grooves; the pair of travelling cars is arranged on thesliding rails; the pair of support seats is arranged on the pair of travelling cars; the fixing plate is arranged on the pair of support seats; a circular through hole is formed in the center of the fixing plate; and a plurality of rectangular through holes are formed in the fixing plate and in the outer side of the first circular through hole. According to the core tube beam column structure, theusing effect of the core tube beam column is improved, reasonable portioning arrangement of electric wires or cables is facilitated and the probability that multiple electric wires or cables are entwined with one another is reduced.

The invention relates to a protection guide device for a knee joint meniscus repair operation, relates to the technical field of medical instruments, and aims at solving the technical problem that an existing suture needle cannot smoothly and rapidly penetrate out of the body of a patient under guiding of a guiding device. The protective guide device comprises a guiding arc plate and a supporting annular plate, and the supporting annular plate is arranged at the end of the guiding arc plate and used for opening a minimally invasive incision. A partition plate is arranged on the side wall of the guide arc plate and divides the guide arc plate into a first penetrating area and a second penetrating area, the first penetrating area is used for penetrating of an endoscope, and the second penetrating area is used for penetrating of a suture needle. The device has the effect of guiding the suture needle to penetrate out of the body of a patient smoothly and quickly.

The invention relates to a laundry ball, in particular to an intelligent Internet-of-thing laundry ball. The laundry ball comprises a streamline-shaped laundry ball housing, the laundry ball housing is internally provided with a power supply module and a circuit board which is connected with the power supply module, the circuit board is provided with a control module, an RFID reading module, a washing parameter detection module and a wireless transmission module, the output ends of the RFID reading module and the washing parameter detecting module are connected with the control module, the wireless transmission module is in wireless connection with a mobile terminal APP or a server terminal, and the communication between the mobile terminal APP or the server terminal and the control moduleis achieved through the wireless transmission module. The laundry ball has the advantages of simple structure and convenient use, the laundry experience of a user can be improved, the washing effectis improved, and recognition can be conducted on clothes with an RFID label by a normal washing machine to allow the normal washing machine to achieve intelligence; recognition on the clothes in the laundry process can be conducted two or three times, and therefore the accuracy of clothes recognition is greatly improved.

The invention relates to an agricultural machine tool, in particular to a vegetable seedling dense planting machine. During the planting process of using the seed webbing, the seed webbing cannot be quickly and conveniently unfolded from the wheels, which is very inconvenient to use, and the seed webbing is prone to intertwining and knotting. The invention includes a wire wheel, a wire wheel frame, and a positioner. The wire wheel frame is wrapped with a seed ribbon, and the wire wheel frame is used to install and fix the wire wheel, and the positioner is used to fix the starting end of the seed ribbon; the wire wheel frame includes a bracket, Shaft rod, orifice plate, and the front end of the bracket is an orifice plate. The wire wheel is arranged in a single layer or multiple layers on the wire wheel frame, and the orifice plate is detachable or split; the wire wheel is provided with a damping device; the shaft The rod is vertically arranged longitudinally. The invention realizes multi-ridge planting and dense seedling raising at one time through single-layer or multi-layer wire wheels, and has high operation efficiency; a damping device is installed in the wire wheel, which can straighten and tighten the seed webbing, make the seedlings neat, and reduce the number of seeds. The webbing is intertwined.

The invention relates to the technical field of wires and cables, in particular to a wire arranging device for high-voltage wires and cables for outdoor operation. The wire arranging device comprises a fixed seat, a fixed column, a sawtooth rod and a wire arranging assembly, a roller is arranged on the lower surface of the fixed seat, a winding drum is arranged on the right side of the upper surface of the fixed seat, a sliding groove is formed in the front end of the left side of the fixed seat, the fixed column is fixed to the right end of the sliding groove, a gear sleeves the upper end of the fixed column, the sawtooth rod is meshed and connected with the outer side of the gear, a clamping block is arranged at the outer side end of the middle of the sawtooth rod, the clamping block is fixed to a rod body of the fixed column, an electric telescopic rod is arranged at the left side end of the sawtooth rod, a circular ring is arranged below the clamping block, and the circular ring sleeves the rod body of the fixed column. The sawtooth rod can abut against the ends of the wires and the cables conveniently, winding is facilitated, and mutual winding of the wires and the cables is reduced through the wire arranging assembly.

The invention discloses a box girder spraying and life-preserving device, and relates to the technical field of bridge buildings. The device comprises a water supply unit and laying and drainage unitsarranged on the left side and the right side, the water supply unit comprises a movable trolley, the front side of the movable trolley is provided with a water supply pump, the water outlet end of the water supply pump communicates with a three-way pipe, the laying and drainage unit on the left side comprises a laying device and a drainage device, for the laying and drainage unit on the left side, the laying device comprises a winding shaft, the left side and the right side of the winding shaft are correspondingly, uniformly and fixedly connected with spoke supporting legs in the circumferential direction, the drainage device comprises a water spraying pipe, drainage strips are uniformly and fixedly connected to the left side of the water spraying pipe in the length direction, water spraying holes are uniformly formed in the right side of the water spraying pipe in the length direction, the head end of the water spraying pipe communicates with a branch pipe on the left side, and the tail end of the water spraying pipe is sealed; and the water spraying pipes on the left side and the right side are fixedly connected through a plurality of pull wires. The device has the beneficial effects that the drainage strips are used for realizing water spraying coverage, so that the waste of water is reduced, the utilization rate of the water is improved, and the life-preserving effect is improved.

A split type portable ultrasonic scalpel comprises a power source assembly, a winder connected with the power source assembly, a grip transducer assembly connected with the other end of the winder and a detachable scalpel head assembly arranged on the front portion of the grip transducer assembly. Electric energy is output through the power supply assembly, is output to an ultrasonic transducer in the grip transducer assembly through the winder, is converted into high-frequency mechanical vibration through the ultrasonic transducer, is output to the tool bit working part through the conduction shaft rod to generate high-frequency ultrasonic vibration, and is used for adjusting the frequency of an output signal according to a clamped tissue and output feedback so as to achieve the optimal efficiency; the split type design is adopted, so that the arm burden of an operator is relieved; compared with a traditional ultrasonic scalpel, the ultrasonic scalpel has the advantages that the overall size and weight of the system are greatly reduced, and meanwhile, the weight of a handheld part is not increased; the system disclosed by the invention is reasonable in mass distribution and relatively high in use portability, comfort and controllability.

The invention discloses an assembled multifunctional cabinet, and relates to the technical field of cabinets. The cabinet comprises a cabinet body, an even water groove is formed in the upper surfaceof the cabinet body; a water pipe fixedly communicates with the upper surface of the cabinet body; the side wall of the cabinet body is fixedly connected with a storage plate. The upper surface of thestorage plate is fixedly connected with a fixed plate; a garbage can is arranged on the upper surface of the shelf; the side wall of the fixing plate is slidably connected with a sliding column. Thesliding column penetrates through one side wall of the fixed plate and is fixedly connected with a pressing plate; the pressing plate contacts the side wall of the garbage can; the outer surface of the sliding column is sleeved with a reset spring, a through groove is formed in the front end face of the cabinet body, a drawer box is slidably connected into the through groove, a groove is formed inthe side wall of the drawer box, a clamping column is slidably connected into the groove, a clamping hole is formed in the side wall of the cabinet body, the clamping column penetrates through the clamping hole and is slidably connected with the clamping hole, and a telescopic spring is arranged in the groove. The problems that an existing cabinet is single in function, and a drawer box of the cabinet is not limited and is prone to falling off are solved.

The invention provides a taking-out device which is used for taking out a slender structure implanted in a body. The taking-out device comprises a control handle, a sheath tube connected to the far end of the control handle and an expansion head connected to the far end of the sheath tube, wherein the control handle comprises a driving piece and a rotating piece, one end of the rotating piece is connected with the near end of the sheath tube, the other end of the rotating piece is connected with the driving piece, and the driving piece is used for driving the rotating piece to rotate in two directions so as to drive the sheath tube and the expansion head to rotate in two directions. The expansion head can effectively cut fiber tissue wrapping the periphery of the slender structure, and other wires in a blood vessel can be prevented from being wound with one another and the situation that the blood vessel wall is twisted and scratched by the expansion head is prevented.

The invention provides a preparation method of a coating dispersant and the coating dispersant prepared by the method. The preparation method comprises the following steps: synthesizing polyether alcohol and a cyclic monomer into polyether under the action of a catalyst; reacting the polyether with an acid substance under the action of a reducing agent, an initiator and a chain transfer agent to prepare a polyether dispersant; and adding a neutralizer into the polyether dispersant to prepare the coating dispersant, wherein on the basis that the total amount of the raw materials is 1000 parts by mass, the use amounts of the raw materials are as follows: 79.29 to 83.57 parts by mass of the polyether alcohol ether, 160.97 to 169.68 parts by mass of the cyclic monomer, 0.7 to 1.9 parts by mass of the catalyst, 129.74 to 136.75 parts by mass of the acid substance, 2.1 to 4.5 parts by mass of the reducing agent, 3.9 to 6.7 parts by mass of the initiator, 0.6 to 3.0 parts by mass of the chain transfer agent, 7.1 to 12.8 parts by mass of the neutralizing agent and the balance of water; the polyether alcohol head is trans-4, 4-dimethoxy-2-butenol, the cyclic monomer is ethylene oxide and propylene oxide, and the acid substance is acrylic acid.