67results about How to "Wrap tightly" patented technology

The invention discloses a reinforced type silicon rubber self-adhesion insulated rubber tape. Cotton fiber cloth is taken as a base material and adhesive layers are respectively coated on upper and lower faces. Each adhesive layer comprises the following materials in parts by weight: 30-60 parts of silicon rubber, 10-25 parts of gas-phase white carbon black, 0-5 parts of silicone oil softening agent, 5-20 parts of silicon-boron tackifier, 0.2-0.5 part of coloring agent and 0.5-5 parts of vulcanizing agent. According to the reinforced type silicon rubber self-adhesion insulated rubber tape, the breaking strength is more than or equal to 5 MPa and the definite elongation strength is more than or equal to 3 MPa; when the reinforced type silicon rubber self-adhesion insulated rubber tape is used for an insulating, sealing and winding process of various cable connectors under 35 kV or below, the safety operation capability, the anti-cracking capability, the anti-fouling capability and the wear-resisting capability of cables are improved, the winding is more tight and the sealing waterproof effect is better; and the use is safe and reliable at a temperature rangoffing from -40 DEG C to 260 DEG C, and the anti-current-leakage capability is further improved.

The invention discloses a preparing method of a braided tube homogeneously-enhanced type polyvinylidene fluoride hollow fiber film, and belongs to the field of polymer film product preparation. The preparing method includes firstly preparing a polyvinylidene fluoride solution A having a certain low concentration, dipping a braided tube with the solution A to allow the polyvinylidene fluoride solution to penetrate into the inside of the braided tube, coating the outside of the braided tube with a high-concentration polyvinylidene fluoride film casting solution B having a certain formula, and putting the braided tube coated with the solution A and the solution B into a coagulating bath to allow the polyvinylidene fluoride coated in the two times to be subjected to phase separation simultaneously. The polyvinylidene fluoride hollow fiber film prepared by the method is advantageous in that 1) the inner low-concentration polyvinylidene fluoride solution tightly surrounds fibers of the braided tube, is tightly connected to an outer film layer after phase transition, and is not liable to shed; 2) a high-aperture-ratio compact surface layer is formed from the outer high-concentration film casting solution and provides effects of filtration; and 3) the braided tube with high strength provides excellent film fiber longitudinal stretching strength.

The invention discloses a self-pressure reducing type wire coil device. The self-pressure reducing type wire coil device comprises a winding reel which is of a hollow structure. The side wall of the winding reel is provided with a plurality of arc-shaped winding grooves. The upper end of the winding reel is fixedly connected with an upper disk plate, and the lower end of the winding reel is fixedly connected with a lower disk plate. A rotating rod is inserted into the winding reel. The two ends of the rotating rod penetrate the lower side wall of the upper disk plate and the upper side wall ofthe lower disk plate correspondingly and extend. The lower end of the rotating rod is provided with a plane bearing. The part, located between the lower disk plate and the plane bearing, of the rotating rod is sleeved with a driven gear. A gear motor is arranged below the lower disk plate. The drive end of the speed reducing motor is fixedly connected with a drive gear. According to the self-pressure reducing type wire coil device, due to the fact that the multiple arc-shaped winding grooves are formed, when a winding wire is wound, pressure is only exerted on the lower portion of the windingreel, the pressure can be dispersed to the side wall of the winding reel, self-pressure reducing treatment is achieved, and winding is tighter.

The invention discloses a winding device for cable production. The winding device for cable production comprises a bottom plate and a winding roller; a mounting frame is fixedly connected to the outer wall of the top of the bottom plate, a motor is arranged on the outer wall of the top of the mounting frame, a rotating shaft is arranged at one end of an output shaft of the motor, and a rotating disc is arranged at the bottom end of the rotating shaft; through holes which are annularly distributed at equal intervals are formed in the outer wall of the top of the rotating disc, limiting pins are slidably arranged on the inner walls of the through holes, stop blocks are arranged at the top ends of the limiting pins, an upper clamping plate is arranged at the bottom ends of the limiting pins, the outer walls of the limiting pins are sleeved with first springs, a movable shaft is rotatably arranged on the outer wall of the top of the bottom plate through a bearing, and a lower clamping plate is arranged at the top end of the movable shaft. By means of the winding device, the winding roller can be easily taken down, replacement with a new winding roller can be conveniently carried out, use is quite convenient, a cable can be evenly wound around the winding roller, abrasion caused by contact between the cable and the inner wall of a cable guide cylinder is effectively avoided, and the use effect is better.

The invention discloses a thermal shrinkage bonding nut structure, wherein the thermal shrinkage bonding nut structure is implanted in a screw stud to lock a screw. The thermal shrinkage bonding nut structure structurally comprises a nut and a thermal shrinkage tube, wherein the interior of the nut takes the shape of a hollow cylinder, a first bulge part and a second bulge part parallel with the first bulge part are arranged at the periphery of the nut, the outer diameter of the nut is smaller than the inner diameter of the screw stud, and the thermal shrinkage tube is arranged on the second bulge part in a sleeving manner. According to the thermal shrinkage bonding nut structure, the thermal shrinkage tube is added, then the nut and the screw stud are more tightly and stably connected, and the problem that a common nut falls off easily because of the insufficient interlocking force is avoided. Meanwhile, a relatively large interlocking force is acquired only through a traditional hot-melting nut implantation method, so that the problem of high cost of a simultaneous die-sinking implantation method is avoided, and the cost is further reduced.

The invention relates to a wire stripping device, in particular to a wire stripping device for electrical engineering. The invention provides a wire stripping device for electrical engineering, whichcan automatically store and cut off a wire. The wire stripping device for electrical engineering comprises a floor, a first supporting frame and a second supporting frame, the first supporting frame is arranged on one side of the floor, the second supporting frame is arranged on the other side of the floor, a straightening mechanism is arranged between the first supporting frame and the second supporting frame, a collecting mechanism is arranged on the floor, the collecting mechanism is connected with the straightening mechanism, and a peeling mechanism is arranged between the first supportingframe and the second supporting frame. By arranging the straightening mechanism, the collecting mechanism and the peeling mechanism, the straightening mechanism can straighten a bent electric wire, the peeling mechanism peels the electric wire, the collecting mechanism collects the peeled electric wire, and the effect of automatically peeling the electric wire is achieved.

The invention discloses a super-slip guide wire outer wrapped layer solid solution molding device including a wrapping mold, a wrapping material supply device, a variable speed traction device and a cooling device; a molding channel for a core wire to pass through and a melt runner intersected with the molding channel are formed on the wrapping mold; the wrapping material supply device is used forproviding a wrapping material melt for the wrapping mold; the variable speed traction device is used for pulling a core wire out from the molding channel at different speeds according to the diametersizes of the core wire in different regions, wherein the core wire passes through the molding channel and is coaxial with a second molding channel of the molding channel; the cooling device is used for cooling the core wire removed out of the wrapping mold. The core wire is wrapped tightly by a solid solution way, so slipping is not easy, a head end of the core wire is prevented from puncturing the outer wrapping layer, and the risk of scrapping a chamber channel by a guide wire is reduced; at the same time, with adopting of the variable speed traction way, different-diameter regions of the core wire have more fit wrapping time and wrapping material melt amount, and uniform, smooth and reliable outer diameter of the guide wire after wrapping can be guaranteed.

The invention belongs to the field of plant propagation, and relates to a cultivation matrix, in particular to a matrix which is capable of effectively increasing the survival rate and used for high layering. The matrix comprises 20-30 parts of edible fungus residues, 300-600 parts of peat, 200-400 parts of perlite, 110-150 parts of soybean dregs, 7-14 parts of root-promoting growth composition, 10-15 parts of bagasse, 5-8 parts of beta-carotene, 3-7 parts of trehalose and 15-20 parts of active polypeptide calcium-zinc chelate. According to the matrix, extracts of plants capable of easily rooting serve as root-promoting factors, the matrix can be used in a plant organic planting system, natural nutrients are provided for growth of branch layering, and then the survival rate of layering isfurther increased. Plant extracts rich in antioxidant substance serve as anti-browning factors, the browning rate of girdling branches is reduced, the natural nutrients are provided for growth of branch layering, and the survival rate of plant high layering is increased.

The invention discloses a wire winding device for enamelled wire production. The wire winding device comprises a device main body. According to the wire winding device for the enamelled wire production, by means of the manner that the upper portion of a rack is provided with a polished rod wire arranging device, automatic adjustment can be performed in the wire winding process to keep the windingtension unchanged, the wire material walking pitch can be adjusted according to the wire material diameter, the linear speed of wire winding is made to coordinate with a previous working procedure toperform coordination work, wire materials in the wire winding are winded tightly, the appearance wire materials are neat and beautiful, the product quality is guaranteed, after the wire winding work is finished, an I-shaped wheel disc after the wire winding can be taken down by adjusting the positions of an I-shaped wheel disc placing platform and a clamping disc, then the inclination angle of theI-shaped wheel disc placing platform is adjusted through the coordination work of a second hydraulic cylinder and a third hydraulic cylinder, the I-shaped wheel disc is made to slide down through a guide plate utilizing a sliding rail, the time consumed by replacing the I-shaped wheel disc is greatly saved, the labor intensity of workers is reduced, the production efficiency is improved, and popularization and promotion are facilitated.

The invention discloses an intelligent setting-out device for a rail traffic cable. The device comprises two side sleeving frames I, two upper end plates, two top carrying frames and a transfer disk,wherein the two side sleeving frames are disposed in parallel; the two upper end plates are disposed on two ends between the two side sleeving frames I; vertical struts are vertically disposed under two ends of the two side sleeving frames; and the top carrying frames are disposed on two sides above the upper end plates. The device disclosed by the invention has the beneficial effects that a motorI on the top of the vertical struts is fitted with rolling of rolling teech I in a rolling slot I by a gear I so as to adjust an interval between the vertical struts on two sides of the device, and thus electric wheels can be arranged on rail plates which are located on two sides of rails with different widths. On one side, the device is connected to the two sides of the rail by the electric wheels and the device can be driven to realize movable work, so the device can carry out setting-out work more efficiently; and on the other side, the device can be fitted with the rails which have different widths, so extensive fitting is ensured, and the device can move on the rails more stably and smoothly.

The invention discloses automatic packaging equipment for pipe film covering, and relates to the technical field of pipe packaging equipment. The automatic packaging equipment for pipe film covering comprises a base and two sets of sliding rods symmetrically and fixedly connected to the upper end face of the base through fixing blocks, a mounting base is fixedly connected between the sliding blocks, the right end of a connecting rod is fixedly connected to the left end of the mounting base, and an annular pipe is arranged at the upper end of the mounting base through a conveying pipe; nozzles are communicated with the circumference of the outer surface wall of the annular pipe at equal intervals and point to the center direction of the annular pipe; according to the device, a pipe can be automatically subjected to film covering operation, time and labor are saved, heating and compacting can be conducted after film covering is completed, so that an adhesive film can be tightly wound around the outer portion of the pipe, the situation of loosening and falling is avoided, dust on the surface of the pipe can be cleaned, the adhesive film can be tightly attached to the surface wall of the pipe, and the service life of the pipe is prolonged. The film covering quality is improved.

The invention discloses a low-loss stable-phase cable. The cable comprises a silver-plated soft round copper wire inner conductor, a microporous polytetrafluoroethylene tape insulator, a silver-platedcopper flat tape outer conductor, a silver-plated soft round copper wire outer conductor and a fluorinated ethylene propylene sheath, wherein the outer side of the silver-plated soft round copper wire inner conductor is wrapped with the microporous polytetrafluoroethylene tape insulator, the outer side of the microporous polytetrafluoroethylene tape insulator is wrapped with the silver-plated copper flat tape outer conductor, the outer side of the silver-plated copper flat tape outer conductor is wrapped with the silver-plated soft round copper wire outer conductor, and the soft round copperwire drawing is realized through the size difference between the two wire drawing wheels; wire drawing is convenient, the efficiency is high, wire drawing is carried out in water, so that the phenomenon that a copper wire is easy to deform and break during traditional wire drawing is avoided, the copper wire is ensured to be in a low-temperature environment through underwater wire drawing, deformation of the copper wire due to local heating is avoided, the soft round copper wire is ensured to be tightly wound on the collecting roller through supporting and tightening of the first guide wheel and the second guide wheel, and the elastic retraction phenomenon of the soft round copper wire is avoided.

The invention relates to the field of copper strip packaging, in particular to a copper strip packaging tool which comprises a shell, a clamping structure, a first driving mechanism, a transmission mechanism and a second driving mechanism. An operating platform is fixedly connected to the bottom of the shell, the first driving mechanism is arranged on the upper surface of the operating platform, an objective table is arranged in the shell, and an arc-shaped groove is formed in the upper surface of the objective table. Since a clamping structure and a driving wheel are arranged, a copper stripcan be prevented from being inclined and affecting the packaging effect when packaged, a second sleeve can continuously clamp the two sides of the copper strip, folds of packaging strips on the two sides of the copper strip can be flattened, a first sleeve can flatten the folds of a packaging strip on the outer side of the copper strip to enable the packaging strips to wind and pack the copper coil more tightly and firmly, the objective table can be extracted from the shell through the arrangement of the first driving mechanism, the copper strip can be conveniently taken and placed by workers,and workers can conveniently carry out feeding and discharging on the copper strip packaging tool.

The invention discloses an automatic winding machine and a winding method for a roll type membrane element protective net, and the automatic winding machine for the roll type membrane element protective net comprises a machine frame, a feeding system, a position system, a clamping system, a heating system and an auxiliary system; the heating system comprises a heater, a heater upper and lower driving device driving the upper and lower reciprocating motion of the heater, and a heater front and back driving device driving the front and back reciprocating motion of the heater; the auxiliary system comprises a clamping groove, a pressing plate parallelly arranged in the clamping groove, a clamping groove driving device driving the front and back reciprocating motion of the clamping groove, and a pressing plate driving device driving the front and back reciprocating motion of the pressing plate. The automatic winding machine semi automation equipment, by use of the automatic winding machine, only one person can complete winding of an outer protective net, the outer protective net is tightly wound, the production efficiency is high, the cost is low, the length of the heater is not shorter than the length of a to-be-processed membrane element, the thermal bonding process can be once completed, and the adhesion is rapid.

The invention relates to the technical field of mechanical equipment production, in particular to a galvanized iron wire winding device which comprises a base, a protective cover, a wire leading mechanism and a transmission mechanism, wherein the wire leading mechanism can guide an iron wire according to a set speed, so that the iron wire is uniformly wound on a collecting roller, and the iron wire is wound more compactly. The equipment is further provided with a protective cover which covers the whole equipment, so that on one hand, the dangerous accident that related personnel approaches to wind clothes can be avoided, and on the other hand, the situation that iron wires are thrown away and drawn to workers due to sudden breakage of the iron wires in the winding process can be eradicated. The galvanized iron wire winding device has the advantages that the winding effect is good, the cost and the operation and maintenance cost are low, the personal safety of personnel can be greatly protected, and the work efficiency of production is improved.

The invention discloses a novel crusted fire-resistant mica tape and a production process thereof. The novel crusted fire-resistant mica tape comprises enhanced protective layers, bonding layers and mica paper, wherein the enhanced protective layers are respectively arranged at the upper side and lower side of the mica paper through the bonding layers, and the bonding layer comprises waterborne ceramic silica gel and tritium trioxide. The novel crusted fire-resistant mica tape solves the technical problems of easy layering, easy breakage, no elasticity and environmental pollution of the fire-resistant mica tape in the prior art.

The invention discloses a water blocking power cable, comprising a cable core, wherein the cable core is formed by twisting a plurality of insulated water blocking cores; the gap of the cable core isfilled with a water blocking rope, a first semi-conductive water blocking tape is lapped after a copper strip shielding layer is arranged outside the cable core, then a first water blocking tape is lapped, a PVC inner sheath layer is extruded outside the first water blocking tape, a buffer water blocking tape is continuously lapped outside the PVC inner sheath layer and then a galvanized round steel wire armored layer is wound, a second water blocking tape is lapped outside the galvanized round steel wire armored layer, and an MDPE outer sheath is extruded outside the second water blocking tape. The water blocking power cable has very strong water blocking function, rainwater cannot enter the conductor, and the oxidation and corrosion of the conductor due to water infiltration are prevented from affecting the electrical performance of the cable and even causing cable breakage, so that the service life of the cable is greatly prolonged.

The invention discloses a cable winding and withdrawing device. The cable winding and withdrawing device comprises a first box body; a cavity with openings in the upper side and the right side is formed in the first box body; and a main shaft internally provided with a spline groove is rotatably connected to the inner wall of the lower side of the cavity. The device can wind, pack and take away cables; the device is applicable to winding wheels of different inner diameters, and the cable can all be well wound; the device is provided with a clamping mechanism for preventing a cable from being pulled back reversely in the winding process; meanwhile, the cable to be wound can be straightened, so that winding is tighter; when the cable is wound up and down circle by circle, the cable is pressed reversely; and two adjacent circles of cables wound on the upper side of the winding wheel are pressed together, so that winding is compact, and transportation is facilitated.

The invention relates to a multi-directional regulating belt roller for wrapping device, which is characterized in that: a first fixed block and a second fixed block are adopted and fixed on a supporting guide rod by set screws respectively; sliding blocks are fixed on the supporting guide rod by set screws respectively; a rotating locking screw and a fulcrum shaft are connected and locked on the sliding blocks; a first compression spring and a second compression spring are arranged on two sides of the joint part of the fulcrum shaft and the rotating locking screw respectively; adjusting screws are arranged on the sliding blocks; a guide sleeve is arranged on the outer side of the fulcrum shaft; and a bearing and a clamp spring are arranged on two inner ends of the guide sleeve and the fulcrum shaft respectively. The roller is simple, compact and reasonable in structure, safe and convenient and flexible for operation and is capable of adjusting a wrapping angle up and down as well as left and right, playing a buffering role in case of unstable tension to make the wrapping uniform, compact, flat and smooth, greatly improving wrapping quality and saving production cost.

The invention discloses an air-jet vortex polyester yarn spinning device. The air-jet vortex polyester yarn spinning device comprises a raw material supply device (1), wherein the raw material supply device (1) is connected with a yarn drafting device (2); the yarn drafting device (2) is connected with a yarn twisting device (3); the yarn twisting device (3) is connected with a finished-product winding device (4); the yarn twisting device (3) comprises a shell body (31); the shell body (31) is internally provided with a first nozzle (32); the first nozzle (32) is connected with a second nozzle (33); the first nozzle (32) comprises a first splitting pipe (321); a plurality of grooves (322) with a spiral structure are uniformly formed in an inner wall of the first splitting pipe (321). The air-jet vortex polyester yarn spinning device has the characteristics of increasing the crossing depth between yarns, improving the twisting uniformity of the yarns, improving the twisting strength and improving the spinning quality.