23results about How to "Prevent wire breakage" patented technology

The invention relates to the technical field of industrial prepreg production equipment, and particularly discloses a tension control method for ceramic-based composite material fiber tows, the ceramic-based composite material fiber tows are laid and impregnated through a fiber arrangement machine, and the fiber arrangement machine comprises an unwinding roller for unwinding the fiber tows and a take-up roller for taking up the fiber tows. Tension balance of the fiber tows in the fiber arranging machine in the fiber arranging process and the fiber collecting process is achieved by controlling the rotating speed of the unwinding roller and the rotating speed of the fiber collecting roller. The servo motor is adopted to replace a magnetic powder brake to control tension, and the problem that the tension smaller than the resistance range cannot be controlled due to the fact that the resistance of the magnetic powder brake is large is effectively solved; the unwinding roller and the take-up roller are both controlled by servo motors, a double-closed-loop control mode is adopted, tension control is achieved by adjusting the speed difference of the unwinding roller and the take-up roller, the tension control range is widened, stability is better, resistance influence factors are avoided, and the signal oscillation problem caused by one-way control is optimized.

The invention discloses a production method of superfine viscose staple fibers. The superfine viscose staple fibers are 0.4-0.44 dtex in single line density, 38-41 mm in length, 2.16-2.48 cN / dtex in dry breaking strength, 1.20-1.49 cN / dtex in wet breaking strength, 18.21% in dry elongation, 80%-87% in whiteness and 0.4-0.6 mg / 100g in defect. By adjusting technological parameters in the processes of dipping, aging, yellowing and ripening and filtering and defoaming after ripening, large-diameter particles and impurities easy to precipitate in spinning raw rubber are removed, it is guaranteed that the diameter of viscose particles meets the production requirement of superfine viscose, and meanwhile the problems of yarn breakage and unstable forming are avoided. The spinneret orifice which is more suitable for superfine viscose fiber production is designed, and the problem that the spinning property of viscose is affected due to the radial expansion effect and large-degree energy loss of viscose trickle at an outlet of the spinneret orifice is solved. The prepared superfine super viscose staple fiber is smaller in single-line density span and higher in fiber quality.

The invention discloses slow wire cutting equipment which comprises a machine body, a liquid storage pool is arranged on the machine body, a movable frame is slidably connected to the machine body, multiple sets of guide wheels are installed on the machine body and the movable frame, the slow wire cutting equipment further comprises a protection assembly, the protection assembly comprises a communication block, a protection column is inserted into the communication block, and the communication block is fixedly connected with the protection column. A through groove is formed in the center of a column body of the protection column and penetrates through the protection column, and a second water guide groove is formed in the lower end face of the protection column and located between the outer wall of the protection column and the through groove. According to the slow wire cutting equipment, a thin copper wire can be effectively protected, the situation that oxide skin and carbon residues generated in the workpiece cutting process change a discharging gap between the thin copper wire and a workpiece is avoided, and therefore the stable discharging state between the thin copper wire and the workpiece is guaranteed; fracture of the fine copper wire caused by change of the discharge gap when the workpiece is cut is effectively prevented, scrapping of the workpiece is avoided, and the machining quality and the working efficiency can be improved.

The application discloses a slow wire cutting equipment, which comprises a machine body, a liquid storage pool arranged on the machine body, a moving frame in sliding connection with the machine body, a plurality of guide wheels arranged on the machine body and the moving frame, and a protection assembly. The protection assembly comprises a communication block, a protection column is inserted into the communication block, a through groove is arranged in the center of the column body of the protection column, the through groove penetrates through the protection column, and a second water guide groove is arranged in the lower end surface of the protection column and located between the outer wall of the protection column and the through groove. The slow wire cutting equipment can effectively protect the thin copper wire, avoid the change of the discharge gap between the thin copper wire and the workpiece caused by the oxide skin and carbon residue generated in the workpiece cutting process, ensure the stable discharge state between the thin copper wire and the workpiece, effectively prevent the thin copper wire from being broken due to the change of the discharge gap during the workpiece cutting, avoid the workpiece from being scrapped, and further help to improve the machining quality and the working efficiency.

The invention relates to an energy storage device and a power utilization system. The energy storage device comprises a shell, an electrode assembly, an end cover assembly and a binding piece, wherein the shell is provided with an accommodating cavity; the electrode assembly is arranged in the accommodating cavity, the electrode assembly comprises a plurality of tabs and an electrode main body which are electrically connected, and the tabs and the electrode main body are arranged along a first direction; the end cover assembly is arranged on one side of the shell and used for sealing the containing cavity. The binding piece is positioned between the end cover assembly and the electrode main body; the binding piece is provided with a penetrating hole, and the penetrating hole penetrates through the two opposite surfaces of the binding piece in the first direction. The penetrating hole extends along a second direction, the plurality of tabs penetrate through the penetrating hole, and the first direction is intersected with the second direction; the penetrating hole is provided with a first side wall and a second side wall which are oppositely arranged in the second direction, and in the second direction, the distance between the first side wall and the second side wall is larger than the size of the ends, close to the electrode body, of the tabs.

The invention relates to the field of preparation of high polymer materials, in particular to a preparation method of ultra-high molecular weight polyethylene coarse denier fibers, and discloses a preparation method of ultra-high molecular weight polyethylene coarse denier fibers, which comprises the following steps: extruding a spinning solution through a spinneret plate to obtain gel yarns; cooling the gel yarn twice, preheating, drafting, oiling and rolling to obtain a precursor yarn; and performing multi-stage stretching on the protofilament to obtain the ultra-high molecular weight polyethylene coarse denier fiber. By means of the process of cooling twice and then preheating, the'skin-core 'structure of the fiber appears firstly and then is eliminated, so that a solvent in the gel silk is continuously separated out along with the preparation process, the situations of silk breakage and broken silk caused by the'skin-core' structure of the gel silk in the preparation process are avoided, and the solid gel silk with the'skin-core 'structure basically eliminated is obtained after cooling twice. Preheating to soften and melt the solid gel filaments to prepare stretchable gel filaments; and finally, the ultra-high molecular weight polyethylene coarse denier fiber with large filament number and good mechanical property is prepared.

The invention relates to a self-locking tension balance traction device, which belongs to the field of carbon fiber wire drawing manufacturing devices. A guide shaft is provided, and a guide shaft fixing module is processed at the lower end of a traction disc base. A lower connecting rod fixing module is also processed at the lower end of the traction disc base, which is combined with a lever and upper and lower connecting rods. A hollow pressure box is fixedly installed at the upper end of the traction disc base, and a friction plate and a threading friction plate are stacked in the hollow pressure box. A concave movable pressure plate is installed at the upper end of the uppermost friction plate and fixed with a guide pin. A pressure roller is processed, and a pressure roller assembly is installed on the top of the concave movable pressure plate. The end of the upper connecting rod is connected to the upper connecting rod connection hole at the lower end of a ""-shaped pulling component through an upper connecting rod pin shaft, so that the traction force pulling the composite material can be converted into positive pressure, without other power devices and realizing the self-locking function. The multi-layer friction plate and the multi-layer threading friction plate are superimposed, and the friction force is increased, and the buffering function of the fiber filaments can be realized to achieve the tension balance of the fiber filaments and prevent the broken wires.

The utility model relates to the field of spinning, in particular to a stable yarn separator for spinning medium-strength heavy denier yarns. Comprising a hard liquid inlet pipe installed in a side blowing air box and a plurality of hollow filament separating rods vertically arranged on the hard liquid inlet pipe at intervals, and a plurality of liquid outlet holes are formed in the filament separating rods. The utility model designs a detachable stable yarn separator for spinning heavy denier yarns, which is temporarily mounted at a spinning end in a spinning-in process. Wherein the filament separating rod is used for separating filament bundles at each spindle position, liquid flows out from liquid outlet holes formed in the liquid inlet pipe from the liquid inlet pipe, and flowing-out water (or low-concentration spinning oil) makes contact with the filaments, so that the uncooled filaments can be rapidly cooled and lubricated, and the filaments are prevented from being broken; and then the arranged water receiving tank is used for collecting water flowing out of the water receiving tank or low-concentration spinning oil. The tows at each spindle position are separated, so that rapid tow separation at the winding end is facilitated, and the production efficiency is improved. And after the ends are formed, the stable yarn dividing device can be folded, so that the normal production stability is not influenced.

The invention belongs to the technical field of high-performance fibers, and particularly relates to a gel silk solidification system and a preparation method of ultra-high molecular weight polyethylene fibers.The gel silk solidification system comprises a cooling water tank and a silk spraying assembly, the silk spraying assembly is connected with a bottom roller A through fibers sprayed by the silk spraying assembly, and the bottom roller A is connected with a bottom roller B through fibers; the bottom roller B is parallel to the bottom roller A relative to the inner bottom end of the cooling water tank, the bottom roller B is connected with two sets of three-rollers through gel threads formed after cellosilk is cooled through the cooling water tank, and the two sets of three-rollers are connected through the gel threads and connected with a silk outlet roller through the gel threads. The silk outlet roller is sequentially connected with a silk swinging rod and a silk containing barrel from top to bottom through gel silk. According to the method, the production stability, the product performance and color difference control can be remarkably improved, the production cost is reduced, the consistency of the retraction rate and the flexibility of a process window are improved, and powerful support is provided for wide application of the ultra-high molecular weight polyethylene fiber.

The utility model discloses a multi-strand composite DTY (Draw Textured Yarn) differentiated production device which comprises a roller assembly, a heating and cooling assembly arranged at the downstream of a first roller, a yarn moving plate arranged at the downstream of the heating and cooling assembly and a yarn guiding assembly, and the roller assembly at least comprises the first roller, a second roller and a third roller. The second roller and the first roller are sequentially arranged in the spinning direction, the first roller is located below the second roller, the heating and cooling assembly is used for heating and then cooling POY filaments, the third roller is located on the downstream of the filament moving plate, and the fourth roller is located on the downstream of the filament moving plate. The yarn guiding assembly at least comprises a first yarn guider installed on the first roller, a first guide wheel arranged between the first roller and the heating and cooling assembly, a second guide wheel installed on the heating and cooling assembly and a second yarn guider installed on the yarn moving plate. According to the device, the number of yarn paths can be increased to achieve multi-strand yarn composite spinning, and therefore differentiated fibers are produced.

The utility model discloses a kind of winding forming devices for high-grade white filament processing, comprising: drive seat, sliding block is slidably connected in drive seat interior, drive seat upper side is equipped with guide rail support mechanism, guide rail support mechanism upper side is equipped with support table, support table middle part is equipped with cylinder one, support table upper side is equipped with winding mechanism, drive seat front side is equipped with tension adjusting mechanism, drive seat outer one end is fixedly connected with motor one;The utility model is driven screw rotation by motor one, drive sliding block and sliding support seat move along limit slide rod, ensure that support table and winding mechanism transverse movement stability, realize winding uniformity, avoid " stack line " " jump line " It is guaranteed that winding density is consistent, without manual adjustment, adaptive high-speed winding, improve finished product pass rate, electric push rod one pushes open interval by movable shaft support, it is convenient to load into winding roller and reverse clamping fixed, cylinder one drives roller stand to adjust winding roller height, adaptive different line diameter and winding layer number.

The utility model discloses a lightweight anti-rotation garbage grab machine mobile cable comprising three power wire cores which are uniformly distributed at intervals of 120 degrees in the circumferential direction through a Y-shaped polyurethane elastomer isolation core, and the free ends of three forked separator plates of the Y-shaped polyurethane elastomer isolation core extend towards the outer side in an external expansion manner to form fan-shaped parts. Each sector part is provided with a longitudinal hole and is sleeved with a grounding conductor, the Y-shaped polyurethane elastomer isolation core is externally coated with a polyurethane extruded inner sheath, an AFRP reinforced woven tensile layer, a polyurethane extruded outer sheath and an EVA wear-resistant protective layer, and each power wire core comprises a power conductor, a semi-conductive nylon wrapping layer and a polyvinyl chloride insulating layer. Each power conductor comprises an aluminum alloy inner conductor layer formed by twisting aluminum alloy strands, and tinned copper strands are twisted around the outside of the aluminum alloy inner conductor layer to form a copper alloy twisted wire outer conductor layer. The cable is light in weight preparation, the conductor structure is not easy to loosen, the cable core structure is round and balanced, rotation is avoided, and the service life is prolonged.

The utility model discloses a chemical fiber polyester composite yarn melt spinning structure, and relates to the technical field of melt spinning equipment. The chemical fiber polyester composite yarn melt spinning structure comprises a mounting frame, a stretching assembly and a yarn pressing assembly, a transmission roller is rotationally mounted on the mounting frame, the stretching assembly is located in the mounting frame and comprises sliding seats, a driving gear, a servo motor, an arc-shaped opening and an arc-shaped toothed plate, and the sliding seats are fixedly connected to the front side and the rear side of the mounting frame. Driving gears are fixedly connected to the outer walls of the two sliding seats, arc-shaped toothed plates are fixedly connected to the inner walls of the front side and the rear side of the mounting frame, the driving gears are meshed with the arc-shaped toothed plates, and the wire pressing assembly is located on one side of the stretching assembly. According to the device, the uniformity and quality of products are improved, the driving gear, the servo motor and the arc-shaped toothed plate are arranged, the effect of adjusting the tension of stretched spun yarns can be achieved, and the phenomenon that fibers are broken or broken due to too large tension in the stretching process can be effectively prevented through proper tension adjustment.

This invention discloses a complete process for preparing ultra-fine diameter tungsten-rhenium alloy wire with large deformation. The method includes: 1. Obtaining tungsten-rhenium mixed powder through spray drying and hydrogen reduction; 2. Pre-pressing and pre-sintering the tungsten-rhenium mixed powder to obtain a tungsten-rhenium alloy billet; 3. Performing hot isostatic pressing followed by heated forging to open the billet; 4. Performing heated rotary forging; 5. Performing high-temperature straightening, followed by surface polishing and cleaning; 6. Impregnating with a lubricant and heating to form a lubricating film; 7. Performing continuous wire drawing at high temperature using a single die in multiple passes and impregnating with graphite emulsion to obtain fine tungsten-rhenium alloy wires; 8. Performing alkaline washing, acid washing, and rinsing; 9. Performing high-temperature annealing. This invention enhances the lubrication effect of tungsten-rhenium alloy during high-temperature wire drawing by strictly controlling the wire drawing lubrication conditions, ensuring continuous deformation wire drawing of tungsten-rhenium alloy, preparing high-performance ultra-fine diameter tungsten-rhenium alloy wire with uniform structure and excellent mechanical properties, reducing damage to the die, and lowering production costs.

The utility model relates to a pre-oxidation furnace with a cooling function, which belongs to the technical field of pre-oxidation furnaces and comprises a furnace body and shock-proof feet, the number of the shock-proof feet is not less than two, the shock-proof feet are fixed on the lower surface of the furnace body, and a cooling mechanism is arranged on the upper side of the furnace body. According to the pre-oxidation furnace with the cooling function, through the specific design of the atomization assembly, the atomization assembly comprises the multiple concentrically-distributed atomization rings and the atomization nozzles distributed at equal intervals, uniform distribution of the temperature in the furnace is facilitated, the problem of uneven cooling possibly occurring in a traditional cooling method is avoided, the cooling assembly is integrated in the furnace body and comprises the refrigeration pieces and the rotating blades, and the cooling efficiency is improved. According to the pre-oxidation furnace, the cooling efficiency of water temperature is improved, so that the evaporation speed of atomized water is increased, the refrigeration efficiency is improved, and under the cooperation of the temperature and humidity sensor, the filament breaking phenomenon of polymer materials in the pre-oxidation process is effectively avoided by accurately controlling the temperature in the furnace.

This invention relates to a hot-rolled wire rod for 2330MPa grade stranded wire and its manufacturing method. The method involves rolling high-carbon, high-silicon Cr-V wire rods into wire rods, followed by online molten salt isothermal toughening treatment. This process involves a pre-treatment molten salt stage followed by rapid cooling, transitioning the wire rod from an austenitic state to a sorbite phase, forming a predominantly sorbite microstructure. A subsequent molten salt stage further increases the molten salt temperature and reduces the molten salt circulation rate, promoting the continued transformation of untransformed residual austenite into sorbite and isothermal tempering, while also promoting partial melting of sorbite lamellars. Finally, the wire rod undergoes slow cooling on a roller conveyor, resulting in a hot-rolled wire rod with a microstructure consisting of tempered sorbite, ferrite, and melted sorbite. This method controls material costs, achieving a tensile strength of 1558~1608MPa and a reduction of area of ​​34%~39%, while balancing production efficiency and energy consumption. It eliminates the need for offline heat treatment, enabling efficient and stable production of ultra-high strength stranded wire.

The application discloses a continuous fiber 3D printing dynamic regulation device and method based on force vision fusion, which comprises a six-degree-of-freedom industrial robot arm, a multi-dimensional force sensing device connected to the flange at the end of the six-degree-of-freedom industrial robot arm, and a rigid connection support connected to the lower end of the multi-dimensional force sensing device; an active feeding mechanism is installed on the rigid connection support, and a continuous fiber printing nozzle is connected to the lower part of the active feeding mechanism through a compliant floating mechanism; a non-contact topography scanning device is installed on one side of the rigid connection support or the continuous fiber printing nozzle; a multi-modal fusion dynamic regulation unit is in communication connection with the controller of the six-degree-of-freedom industrial robot arm, the active feeding mechanism, the compliant floating mechanism and each sensor respectively. The application realizes full-process closed-loop control of fiber tension, compaction quality and geometric accuracy, and significantly improves the accuracy and adaptability of complex curved surface printing.

This invention provides a method for preparing large-diameter polyphenylsulfone (PPS) monofilaments, comprising the following steps: mixing PPS and a lubricant and then performing melt extrusion to obtain a melt; extruding the melt through a spinneret to obtain nascent monofilaments; sequentially subjecting the nascent monofilaments to oil bath cooling, drawing, and winding to obtain cooled and shaped nascent monofilaments; and sequentially subjecting the cooled and shaped nascent monofilaments to slow drawing and heat setting to obtain large-diameter PPS monofilaments; the slow drawing speed is 3–5 m / min. The addition of a lubricant in this invention improves the flowability and extrusion stability of PPS, preventing melt fracture during extrusion. The subsequent oil bath cooling improves the surface smoothness of the cooled nascent monofilaments, which is beneficial for subsequent drawing. The slow drawing speed allows for slow cold drawing of the nascent monofilaments, which not only enables molecular chain orientation but also prevents filament breakage, thereby obtaining large-diameter PPS monofilaments.

The present application relates to the technical field of wire processing, and provides a wire processing and stranding forming device, which comprises a stranding mechanism, a tension adjusting mechanism, a supporting mechanism, a guiding mechanism, a cooling and shaping mechanism and a controller, the tension adjusting mechanism is assembled at the right end of the stranding mechanism, the supporting mechanism is assembled at the inner wall of the right end of the stranding mechanism, the left end of the supporting mechanism is provided with the guiding mechanism, the guiding mechanism is connected with the stranding mechanism, the cooling and shaping mechanism is arranged at the left side of the guiding mechanism, the cooling and shaping mechanism is connected with the stranding mechanism, and the controller is arranged at the back side of the stranding mechanism. The present application solves the problems of unstable wire laying tension, unadjustable stranding pitch, large guiding deviation, poor forming quality caused by the absence of cooling and shaping and the like of the traditional device, has the advantages of accurate and adjustable tension, stable stranding, reliable guiding, efficient cooling, strong versatility and the like, and can meet the needs of automatic stranding and forming processing of metal wires of various specifications.

This utility model provides a spinning device for spandex yarn spinning processing, including a housing. A first connecting block is fixedly installed on the rear side of the housing. A winding roller is movably connected to the inner side of the first connecting block. An adjustment component is provided inside the housing. The adjustment component includes a first servo motor, a threaded rod, a threaded sleeve, a support rod, a guide ring, a limit block, a guide block, and a guide groove. The threaded rod is movably connected to the inner side of the housing. The threaded sleeve is threadedly connected to the left and right sides of the surface of the threaded rod. By setting the adjustment component, during the spandex yarn spinning process, the first servo motor drives the threaded rod at the output end to rotate. Under the action of the threaded connection, the threaded sleeve, support rod, and guide ring move laterally, thereby adjusting the spacing between the guide rings to adapt to the processing requirements of different specifications of spandex yarn, avoiding uneven wrapping due to excessive looseness or yarn breakage due to excessive tightness.

The invention belongs to the technical field of flux-cored wires, and particularly relates to a tin-based bismuth-rich flux-cored wire, a welding spot and a preparation method and application of the tin-based bismuth-rich flux-cored wire. According to the tin-based bismuth-rich flux-cored wire, the Sn-based alloy with the low Bi content is adopted for preparing the welding wire skin, the flux core is formed by the scaling powder and the Sn-Bi system alloy, distribution of Sn and Bi elements in the tin-based bismuth-rich flux-cored wire is optimized through the combination, the wire breaking phenomenon is effectively prevented, and therefore preparation of high-quality welding spots is facilitated. In the welding spot preparation process, uniform distribution of welding flux is achieved through the low-Bi welding wire skin and Sn-Bi series alloy in the flux core under the combined action of ultrasonic cavitation and mechanical oscillation. The distribution promotes the fast reaction of the Sn-Bi series alloy in the flux core and the low-Bi welding wire skin, the phenomenon of uneven stress is effectively restrained, and therefore the problems of welding spot segregation, the large melting range, insufficient welding and the like are avoided. In addition, the preparation method of the tin-based bismuth-rich flux-cored wire is simple and easy to implement, and automatic production is easy to realize, so that the application range of the tin-based bismuth-rich flux-cored wire is expanded.

The utility model discloses an auxiliary feeding device which comprises a machine frame, an L-shaped supporting plate is fixedly connected to one side of the machine frame, a fixing block, a swing arm and a wire feeding gear device are arranged between the machine frame and the L-shaped supporting plate, a positioning hole is formed in one side of the fixing block, the fixing block is fixedly connected with the machine frame, and the wire feeding gear device is arranged in the positioning hole. The two sides of the swing arm are rotationally connected with a first roller set and a second roller set correspondingly, one side of the swing arm is fixedly connected with a second stud, one side of the L-shaped supporting plate is rotationally connected with a first stud, the first stud is rotationally connected with the swing arm, and a motor is arranged in the rack. According to the utility model, the swing arm is matched with the induction type proximity switch, the condition of unsmooth wire feeding is recognized in a passive mode, and the motor is used for assisting wire feeding, so that the energy consumption is reduced compared with a 3D printer system which always starts the motor for assisting feeding, and meanwhile, the wire feeding and discharging are stable compared with a 3D printer system which does not start the motor for assisting feeding; the phenomena that the wire feeder slips and wires are broken can be avoided, and flexible wire feeding can be achieved.

The present invention discloses a technical field of a well repair machine control device, specifically a long-term overload-proof oil-electric dual-purpose well repair machine controller without a tension rope, comprising a well repair machine body, a controller body, a winch and a wire rope, wherein the controller body is arranged on one side of the upper end of the well repair machine body, and two first convex grooves and two second convex grooves are arranged on the top of the well repair machine body from left to right in sequence. The beneficial effects of the present invention are as follows: by utilizing the buffer device, when the well repair machine is overloaded, the buffer device gives the winch a leftward pulling force to make the winch move slowly to the right to prevent damage to the winch, and at the same time reduces the tension on the wire rope, thereby preventing the wire rope from being broken or ruptured due to overload; by utilizing the alarm device, when the well repair machine is overloaded, the alarm sounds an alarm, thereby reminding the staff that the well repair machine has been overloaded.