676results about "Drawing dies" patented technology

A water tank wire drawing machine for metal wire machining comprises a water tank and a wire drawing mechanism, a cooler is arranged in a first water tank, and the cooler comprises a cooling water pipe arranged above a wire drawing cone pulley and a wire drawing die and a flow guide component arranged below the wire drawing cone pulley and the wire drawing die; the cooling water pipe is used for spraying cooling liquid to the upper side of the wire drawing cone pulley and the upper side of the wire drawing die, the cooling liquid is used for cooling the parts, making contact with the wire, of the wire drawing cone pulley and the wire drawing die, meanwhile, the cooling liquid can also achieve the lubricating effect, and the abrasion condition of the wire in the wire drawing process is further reduced; the cooling liquid near the wire drawing cone pulley and the wire drawing die can flow downwards and be guided out through the shape structure of the flow guide component, the flowing speed of the cooling liquid near the wire drawing cone pulley and the wire drawing die can be increased, and the cooling effect on the wire drawing cone pulley and the wire drawing die is improved.

The utility model discloses high-efficiency copper flat wire drawing forming equipment which comprises a rack (6), a first special-shaped wire-drawing die (7), a roller pair (8) and a second special-shaped wire-drawing die (9) are sequentially arranged on the rack (6) seen from the moving direction of a copper flat wire (1), a first wire-drawing hole (10) is formed in the first special-shaped wire-drawing die (7), the aspect ratio of the first wire-drawing hole (10) is smaller than 2, and the width of the second wire-drawing hole (10) is smaller than 2. Narrow grooves (3) are formed in the two sides of the first wire drawing hole (10) in the width direction, the height of the narrow grooves (3) is larger than the thickness of the copper flat wire (1) and does not exceed 0.1 mm, a driving mechanism is connected to the roller pair (8), a gap between the roller pair (8) is matched with the height of the narrow grooves (3), and second wire drawing holes (11) matched with the copper flat wire (1) are formed in the second special-shaped wire drawing die (9). The high-width-to-thickness-ratio copper wire production line has the advantages of being capable of producing high-width-to-thickness-ratio copper wires, low in cost, high in percent of pass and high in production efficiency.

The invention discloses a pickling-free cold heading Kovar alloy wire production process which comprises the following steps: S1, raw material preparation: preparing the following raw materials in percentage by mass: 41.5% of Ni, 0.5% of Co, less than or equal to 0.03% of C, less than or equal to 0.05% of Mn, less than or equal to 0.05% of Si, less than or equal to 0.02% of P, less than or equal to 0.02% of S and the balance of Fe; mixing the materials, and carrying out vacuum induction melting and electroslag remelting to prepare an alloy ingot; the alloy cast ingot is subjected to hot rolling treatment to form a hot-rolled wire rod with the diameter being 12.0-16.0 mm; s2, peeling treatment is conducted, specifically, surface layer defects of the hot-rolled wire rod in the step S1 are removed through a peeling machine; s3, dry-type drawing treatment is conducted, specifically, the hot-rolled wire rod treated in the step S2 is subjected to dry-type drawing through a dry-type drawing die to form an alloy wire; s4, intermediate annealing treatment is conducted, specifically, the alloy wire in the step S3 is placed in an annealing furnace, sufficient hydrogen is input into the annealing furnace, intermediate annealing is conducted under the hydrogen protection atmosphere, the annealing temperature is 950-1100 DEG C, and the annealing walking speed is 3-5 m / min; the surface quality and the size consistency of the wire can be improved, meanwhile, the defects of environmental pollution, hydrogen embrittlement and the like are reduced, and the use requirements of high-end precise cold heading parts are met.

The invention discloses a circulation system of aluminum wire drawing liquid, and relates to the technical field of metal processing, the circulation system comprises: a wire drawing device, which is provided with an immersion liquid box and an outlet die, and after entering the immersion liquid box for drawing, an aluminum rod is sized from the outlet die for molding; a filter is arranged in the wire drawing liquid pool, the filter is communicated with the immersion liquid box through a circulating pipe I, the circulating pipe I is connected with a heat exchanger, and the immersion liquid box is communicated with the wire drawing liquid pool through a return pipe; the cooling system is connected with the heat exchanger through a circulating pipe II; the filter is provided with at least one continuous filtering mechanism, and the continuous filtering mechanism is configured to trigger the continuous filtering mechanism to rotate to switch a new filtering structure when the water level in the filter rises. After the water-based aluminum wire drawing liquid is adopted, no smell is generated in the circulation process, and the surrounding environment of a machine table is clean and tidy. Meanwhile, after the aluminum powder is filtered and is drawn by a nano-mold, the lubricating property is good, and the surface of the aluminum wire is smooth and clean.

The invention relates to the technical field of metal wire drawing machines, in particular to a metal wire drawing machine energy-saving cooling liquid circulating device which comprises a supporting part, a wire drawing module mounting part is arranged on the upper side of the supporting part, a spraying part is arranged on the upper side of the supporting part and located above the wire drawing module mounting part, and a cooling liquid heat exchange circulating part is arranged on the lower side of the supporting part. The cooling liquid heat exchange circulating part comprises a heat flow filtering assembly, a heat flow heat exchange assembly and a cold flow preparation assembly, the heat flow filtering assembly is arranged on the lower side of the supporting part, the heat flow heat exchange assembly is arranged on the lower side of the heat flow filtering assembly, and a linkage driving part is arranged between the spraying part and the cooling liquid heat exchange circulating part; according to the cooling system, the overall structure optimization and energy-saving effects are achieved, the modular design is adopted, the cooling spraying function, the filtering function, the heat exchange function and the refrigeration regeneration function are integrated, a closed-loop cooling system is formed, cooling liquid consumption is remarkably reduced, and the operation cost is reduced.

The invention relates to the technical field of micropipe drawing forming, in particular to a mold suitable for micropipe drawing forming. Comprising a plurality of die mounting seats, the die mounting seats are mounted on a fixing support at intervals, a drawing die is fixedly mounted in each die mounting seat, the diameters of a plurality of forming holes are sequentially increased or decreased from left to right, a pipe blank sequentially penetrates through the forming holes, a mandrel is arranged in the pipe blank in a penetrating mode, and the mandrel is connected with the die mounting seats. A supporting mechanism is arranged on one side of a feeding port of each drawing die, and a detecting mechanism is arranged on one side of a discharging port of each drawing die. The supporting mechanism can preshape a pipe blank about to enter the drawing die, so that the deformation uniformity of the pipe blank is guaranteed, the detection mechanism can detect the size and the appearance of the formed pipe blank, the product quality can be guaranteed, meanwhile, the abrasion condition of the die can be reflected, and the production efficiency is improved. And a worker is prompted to replace in time.

The invention relates to the technical field of copper wire drawing, in particular to metal bus production and processing equipment which comprises a positioning groove, a half die device, a copper wire, a temporary eye die and a liquid feeding device, the two half eye dies are spliced to form a main position eye die, and the copper wire penetrates through a middle hole of the main position eye die to achieve wire drawing. Lubricating cooling liquid is sprayed to a center hole of the main position hole die at a fixed point through the annular spray head, so that new lubricating cooling liquid can be accurately supplemented to a liquid consumption position, meanwhile, old lubricating cooling liquid is squeezed away, the two half hole dies are separated, and the temporary hole die plays a temporary wire drawing function; the brush roll assembly arranged for each half-hole die is used for cleaning, after cleaning is completed, the two half-hole dies are automatically spliced and combined, subsequent copper wire drawing work continues to be carried out, temporary wire drawing is maintained by the temporary hole die, therefore, the problem of chippings is relatively ignored, and the temporary hole die can be cleaned after the whole wire drawing work is completely completed.

The invention relates to the technical field of steel pipe machining, in particular to an electric detonation lining composite steel pipe cold drawing device which comprises a rail box and an equidistant adjusting mechanism and further comprises four moving trolleys movably installed at the top of the rail box, three cold drawing dies are fixedly installed at the tops of the three moving trolleys correspondingly, and the inner hole diameters of the three cold drawing dies are sequentially decreased. And a clamp is fixedly mounted at the top of the other moving trolley. According to the method, the electric detonation lining composite steel pipe is subjected to multi-pass small-deformation drawing through the three cold drawing dies with sequentially reduced hole diameters, so that the electric detonation lining composite steel pipe is formed step by step, the single-time deformation can be effectively reduced, it is ensured that the electric detonation lining composite steel pipe is evenly stressed in the cold drawing process, lining stripping and damage are avoided, and the service life of the electric detonation lining composite steel pipe is prolonged. And the distance between the three cold drawing dies is adjusted according to the cold drawing requirement of the electric knock lining composite steel pipe, so that uniform distribution of drawing force is ensured, and lining stripping caused by local stress concentration is avoided.

The invention relates to the technical field of metal drawing machining, and discloses a wire drawing device for metal wire production, the wire drawing device comprises a rack, a wire drawing die, a lubricating assembly and a traction mechanism, a mounting plate is fixedly mounted on the front side of the rack, an operation platform is fixedly mounted on the front side of the mounting plate, and a tensioning assembly is arranged on the operation platform; and the tensioning assembly controls the machining wire rod to be circularly switched between the tensioning state and the non-tensioning state, the local area of the machining wire rod in the non-tensioning state moves in the second direction, and the first direction is opposite to the second direction. According to the wire drawing device, by arranging the tensioning assembly, the tensioning assembly controls the machining wire to be circularly switched between the tensioning state and the non-tensioning state, the local area of the machining wire in the non-tensioning state moves in the opposite direction, the meshing acting force of the die hole extruding the machining wire is released, and therefore chippings blocked by the die hole can fall off more easily; and the effect of preventing the wire from being broken and scratched due to the blockage of the scraps is achieved.

The invention provides an insulated wire and a preparation method thereof, and the preparation method comprises the following steps: S100, carrying out the drawing processing of a wire, and obtaining a bare wire; and S200, applying an insulating material to at least part of the surface of the bare conductor to obtain an insulated conductor. The bare conductor is processed through the drawing process, the purpose is to adjust the diameter of the bare conductor to the required specification, the mechanical property and the surface state of metal can be improved through selection of the drawing process, and compared with a bare conductor obtained through a traditional extrusion process and a traditional drawing process, the size of the bare conductor obtained through the drawing process is more stable.

The utility model relates to the technical field of bonding wire production, in particular to a wire expanding and drawing device for bonding wire production. The drawing device is reasonable in structural design and mainly comprises the drawing box, the drawing motor, the rotating shaft, the drawing expansion roller, the expansion drawing spiral grooves, the connecting convex rings, the anti-falling rings and the centralizing blocks, the drawing motor drives the drawing expansion roller to rotate through the rotating shaft, the drawing expansion roller is provided with the two expansion drawing spiral grooves, and the two expansion drawing spiral grooves are connected through the connecting convex rings. The bonding wire is subjected to wire expanding and drawing through the wire expanding and drawing spiral groove, the connecting protruding ring, the anti-disengaging ring and the centralizing block jointly form a centralizing system, it can be guaranteed that the drawing and wire expanding roller keeps stable in the rotating process, and the situation that the wire is broken due to shaking of the drawing and wire expanding roller is avoided.

The invention relates to the technical field of copper material processing, and discloses wire drawing equipment for copper material deep processing, which comprises a machine base, a wire feeding mechanism is mounted at one end above the machine base, a wire drawing die box is mounted on one side of the wire feeding mechanism above the machine base, and a traction mechanism is arranged on one side of the wire drawing die box. The wire drawing die box comprises a cooling lubricating oil box arranged above the machine base, and a wire drawing die assembly is installed in the cooling lubricating oil box. The wire drawing die assembly comprises a wire drawing eye die, the wire drawing eye die comprises a steel sleeve installed in an arc-shaped fixing groove, a die core is installed in the steel sleeve, an oil supply mechanism used for supplying cooling lubricating oil to the die core is further installed at one end of the steel sleeve, the oil supply mechanism is arranged at the outer end of an inlet of the die core, and the oil supply mechanism comprises a lantern ring arranged in a circular ring shape. A circle of oil supply pipes are uniformly arranged on the lantern ring, so that the lubrication quality is improved, the friction and heat accumulation between a copper material and the die are greatly reduced, the service life of the die is prolonged, and the surface quality of a copper wire is guaranteed.

The invention relates to the technical field of wire and cable processing equipment, in particular to a wire drawing device for wire and cable processing. And the adjusting assembly is used for adjusting the position of the mold and comprises rotating rings rotationally arranged on the mounting rings, first buckle plates are arranged on the rotating rings in the circumferential direction at intervals, second buckle plates fixed through bolts are arranged on the first buckle plates in a buckled mode, and the mold is clamped between the first buckle plate and the second buckle plate which correspond to each other. By means of the adjusting assembly and the flushing assembly, efficient and continuous operation in the cable wire drawing process is achieved, the equipment is provided with the rotating ring provided with a plurality of molds with different hole diameters, the molds with the needed hole diameters can be accurately adjusted to the working positions only by rotating the rotating ring, and therefore the molds do not need to be replaced after shutdown, and the production efficiency is improved. The production efficiency is greatly improved, and the downtime is reduced; in addition, the flushing assembly can effectively remove metal chips and other impurities generated in the wire drawing process, the cleanliness of an inlet of the die is ensured, and the product quality problem caused by chip accumulation is prevented.

The invention provides copper wire drawing equipment convenient for die penetration, which belongs to the technical field of wire drawing equipment and comprises a pay-off wheel, a take-up wheel and a drawing mechanism. The drawing mechanism comprises a cone pulley, a die bracket and a plurality of wire drawing dies, the diameter of a wire drawing hole of each wire drawing die is gradually reduced in the copper wire conveying direction, a conical extrusion hole and a conical extrusion plug are sequentially arranged on the side, facing the wire incoming direction, of the wire drawing hole, a wire clamping hole is formed in the center of the conical extrusion plug, and the wire clamping hole is communicated with the conical extrusion hole. When the conical extrusion plug gets close to the wire drawing hole, the conical extrusion plug is extruded by the conical extrusion hole, the diameter of the wire clamping hole is reduced, the copper wire is clamped and pushed into the wire drawing hole, in the pushing process, the head of the copper wire is clamped and supported by the conical extrusion plug, the straightness of the copper wire can be maintained, the head of the copper wire is prevented from being bent or broken, and the die penetrating efficiency of the copper wire is improved.

The invention discloses an enamelled rectangular wire drawing die mounting and cooling system, relates to the technical field of wire drawing dies, and has the advantages that the cooling effect on the die is improved, and the die is convenient to replace, the key points of the technical scheme are that the enamelled rectangular wire drawing die mounting and cooling system comprises a box body which is arranged on a wire drawing machine and is internally filled with wire drawing liquid; a fixing box is arranged above the position between the two opposite sides in the box body, a mounting barrel is arranged on one side in the fixing box, a mold located in the mounting barrel is clamped to the mounting barrel through a clamping mechanism, the box body and the fixing box are each provided with an inlet and an outlet, the outlet in the fixing box is communicated with the bottom of the mounting barrel, and a lubricating and cooling mechanism is arranged on the box body. And the lubricating and cooling mechanism is used for cooling the two opposite sides and the periphery of the mold in the mounting barrel through the wire drawing liquid in the box body, and lubricating the metal wire entering the mold at the same time.

The invention discloses a preparation method of a compression-resistant and bending-resistant double-omega-shaped seamless steel pipe, the steel pipe comprises two opposite straight edges and two opposite grooves, and two ends of each groove are respectively connected with two straight edge arcs to form a double-omega-shaped structure; the preparation method comprises the following steps: extruding a round seamless steel pipe into a rectangular steel pipe, performing heat treatment, performing primary cold drawing, secondary cold drawing and forming cold drawing on a drawing machine, and performing heat treatment among the primary cold drawing, the secondary cold drawing and the forming cold drawing respectively; and normalizing treatment and tempering treatment are carried out after forming and cold drawing. According to the double-omega-shaped seamless steel tube and the preparation method thereof, the gradient deformation multiple-drawing process design is adopted, the size stability of the seamless steel tube is improved, the seamless steel tube is suitable for preparing a thick-wall steel tube, the tensile strength of the obtained double-omega-shaped seamless steel tube reaches 754 MPa, the yield strength reaches 628 MPa, HRB97 and high compression resistance and bending resistance are achieved, and the use requirements of the high-temperature and high-pressure environment can be met.

The invention belongs to the technical field of tungsten filament wire drawing equipment, and particularly relates to automatic tungsten filament wire drawing equipment and a tungsten filament cold drawing method.The automatic tungsten filament wire drawing equipment comprises a rack, a pay-off roller, a first cone pulley, a lubricating liquid water tank, a second cone pulley and a take-up roller are installed on the rack, and a wire drawing die is installed in the lubricating liquid water tank; lubricating pressing plates are installed in the lubricating liquid water tank and distributed on the left side and the right side of the wire drawing die in pairs. The lubricating pressing plate comprises a fixed plate and a movable plate, the fixed plate is fixedly installed on the bottom face of the lubricating liquid water tank, an adjusting screw rod and a rotating disc are installed on the movable plate, and contact rods are installed on the fixed plate and the movable plate; micropores are formed in the lubricating pressing plate; a tank cover is mounted on the lubricating liquid water tank; the tungsten wire drawing device is simple in structure, tungsten wires are positioned and restrained through the lubricating pressing plate, the position of the wire drawing die is adjusted, the tungsten wires coincide with the center line of the die hole, and the situation that the tungsten wires shake and flutter, and consequently the wire drawing die is subjected to unilateral abrasion is avoided.

The invention discloses an easy-to-replace molybdenum wire drawing die and a wire drawing system, and relates to the field of metal wire drawing equipment, the easy-to-replace molybdenum wire drawing die comprises a die sleeve and a die core, a mounting rack moving in the axis direction is arranged in the die sleeve, the mounting rack is slidably connected with two clamping plates in the vertical direction, and the die core is located between the two clamping plates; the mold sleeve is provided with a locking rod corresponding to the clamping plate, when the mounting frame is located in the mold sleeve, the locking rod pushes the clamping plate to clamp and position the mold core, the locking rod limits the mounting frame to be separated from the mold sleeve, the mold core comprises the two oppositely arranged half molds, and when the mold core is disassembled or replaced with a new mold core, the metal wire does not need to be completely retreated or cut off, so that the mold core is convenient to disassemble and replace. The mold has the effect of improving the convenience when the mold core is replaced.

The utility model discloses a multifunctional drawing die box, which comprises a control console and a die box arranged at the top of the control console, the side surface of the control console is connected with a straightening rack, the die box is fixed on the control console through a support flange, and the inner side of the die box is respectively provided with a first die cavity, a second die cavity and a third die cavity. A replaceable drawing die assembly is installed in the first die cavity, a chip breaker assembly is installed in the second die cavity, a die guide base is installed on the side, close to the straightening rack, of the third die cavity, the drawing die assembly, the chip breaker assembly and the die guide base are coaxially installed, and a drive motor is installed on the side face of the die box. By means of different combination modes of the drawing die and the stripping die in the first die cavity, product machining with different functions is achieved, the scrap breaking cutter is used for removing scrap iron on the surface of a steel wire in the combination of the drawing die and the stripping die, and the scrap breaking cutter is used for stirring drawing powder in the combination of the double drawing dies, so that gaps are prevented from being formed in the drawing process, and product quality is improved. And the surface of the steel wire has defects due to poor lubrication.

The invention relates to the technical field of copper wire drawing, and discloses continuous drawing equipment for a single crystal copper wire, which comprises an operation panel, take-up and pay-off assemblies are arranged on two sides of the top of the operation panel, a drawing assembly is arranged between the take-up and pay-off assemblies, the drawing assembly comprises a plurality of drawing dies, and the drawing dies are arranged on the operation panel. T-shaped blocks are fixedly connected to the bottoms of the drawing dies, a sliding groove is formed in the top of the base table, positioning balls are arranged on the left sides and the right sides of the interiors of the multiple T-shaped blocks, first limiting plates are fixedly connected to the side walls of the positioning balls, and first springs are arranged on one side edges of the limiting plates. According to the mold, firstly, the mold is pulled through the handle to drive the bottom T-shaped block to move, when the T-shaped block moves, positioning balls on the two sides in the T-shaped block are extruded by the inner wall of a sliding groove to retract to compress springs, the springs reversely push limiting plates to drive the positioning balls to be clamped into positioning grooves after the springs are in place, and the effect of rapidly adjusting the position of the mold is achieved; the problem that the position of a traditional drawing die is inconvenient to adjust is solved, and the equipment debugging efficiency and the drawing precision are improved.

The invention provides a preparation device and a preparation method of a multi-layer heterogeneous metal coating material, and relates to the technical field of metal composite material preparation. Under the action of a drawing current loop in the electroplastic drawing unit, the composite coated metal wire is subjected to electroplastic drawing by a plurality of groups of drawing dies, the drawn composite coated metal wire enters the heat treatment unit, the composite coated metal wire is subjected to heat treatment under the action of a heat treatment current loop, and a finished product of the composite coated metal wire is formed. The drawing pulse power supply and the metal wire form a current loop, the plasticity of the metal wire can be improved by the drawing pulse current in the drawing process, so that the drawing force required by the metal wire is reduced, and meanwhile, the heat treatment unit applies the heat treatment pulse power supply to carry out online electric pulse heat treatment on the metal wire. The coating metal and the core metal form high-strength metallurgical bonding, and the performance of the metal coating material is effectively improved.

The invention discloses a preparation method of a high-toughness beta titanium alloy wire. The preparation method comprises the following steps: providing a beta titanium alloy coiled wire; the coiled wire is subjected to multi-pass roller die hot drawing, and a first middle wire is obtained; performing eye mold hot drawing, sizing and rounding on the first middle wire rod to obtain a second middle wire rod; carrying out on-line short-time solution treatment on the second intermediate wire rod and cooling the second intermediate wire rod; performing eye mold hot drawing on the wire rod subjected to solution treatment to obtain a third middle wire rod; and the third middle wire rod is subjected to eye mold cold drawing, and the beta titanium alloy wire rod of the final specification is obtained. According to the preparation method of the high-toughness beta titanium alloy wire rod, the problems that crystal grains are coarse and large due to repeated solid solution of titanium alloy, sufficient precipitation behaviors cannot be obtained due to direct solid solution, the solid solution cold tensile strength is too high, the plasticity is low and cold plastic forming is difficult to achieve due to sufficient large deformation and cold deformation after solid solution, and the contradiction between the processing technology and the material performance is solved.

The invention discloses special rolling equipment facilitating additive reducing of aluminum and aluminum alloy. The special rolling equipment comprises an additive reducing structure. The additive reducing structure comprises a reducing die, a lubricating powder guide barrel is arranged in the reducing die, and the end of the reducing die is blocked through a cover plate and used for limiting lubricating powder. Additive materials are evenly coated with lubricating powder after passing through the first feeding hole, the cleaning hole and the second feeding hole. According to the lubricating powder coating device, the rotary spiral blade is matched with the conical feeding hole, so that uniform and continuous coating of lubricating powder is realized, and the problems of coating dead angles and non-uniform thickness existing in a traditional powder coating mode are solved; through a closed circulating powder supply structure, lubricating powder leakage and dust pollution are greatly reduced, and occupational health risks and environmental protection cost are reduced; the coating is leveled in real time through the cleaning holes, drawing fracture and mold abrasion are reduced, and the yield and the production stability are improved; the device is compact in overall structure, convenient to disassemble, assemble and maintain, high in universality and suitable for continuous reducing machining of aluminum and aluminum alloy additional materials of various specifications.

The utility model belongs to the technical field of dry drawing of metal products, and discloses a device for cleaning a high-speed drawing die box, which comprises a #-shaped guide wheel and a die box which are sequentially arranged along the drawing direction of a steel wire, and the #-shaped guide wheel is arranged in a liquid accumulation tray; a backflow plate, an overflow plate and a die sleeve are sequentially arranged in the die box in the steel wire drawing direction. A guide alloy is mounted on the overflow plate; the die sleeve is installed in the die box, a die is arranged on the die sleeve, a flushing cavity is formed in the die sleeve, and the flushing cavity is communicated with the liquid supply pipe; a backflow cavity is formed between the backflow plate and the mold box wall opposite to the backflow plate, an overflow cavity is formed between the overflow plate and the backflow plate, and a liquid lubricating cavity is formed between the mounting plate and the overflow plate. Wiredrawing powder can be added into the liquid lubricating cavity to lubricate and draw steel wires, lubricating oil can be adopted to lubricate, draw and clean the steel wires, when liquid is used for lubrication, the surface is clean and free of residues, the steel wires meeting special requirements are drawn at a high speed, secondary cleaning equipment and labor are reduced, and production cost is reduced.

The utility model relates to a drawing die for a disc drawing machine, which belongs to the technical field of drawing dies and comprises an inner die and an outer die, the inner die comprises a feeding section, a deformation section and a sizing section, and the drawing die is characterized in that the inner die is connected with a cylindrical shaping part, the shaping part is flexibly arranged, the outer diameter of the shaping part is consistent with that of the sizing section of the inner die, and the outer diameter of the outer die is consistent with that of the sizing section of the inner die. And a connecting piece for connecting the shaping part is arranged on the inner mold. The hollow pipe drawing machine has the effect of ensuring the quality of hollow pipes drawn by the disc drawing machine.

The invention discloses a cold-drawing forming reducing device for an aluminum alloy thin-wall pipe, relates to the technical field of pipe cold drawing, and aims to solve the technical problem of insufficient functionality of a traditional cold-drawing device. An auxiliary driving rail frame is arranged on the forming machine body; tensioning driving assemblies are arranged at the two ends of the auxiliary driving rail frame. The axial inner wall gaps of the guide forming penetrating mold, the decreasing mold and the limiting mold form decreasing type drawing, staged drawing treatment is formed through the forming cavity, a pipe is gradually deformed under the continuous action of the multiple molds through multi-mold staged drawing, and the work hardening process is more uniform. Compared with single-die large-deformation drawing, multi-stage drawing avoids the problem of uneven work hardening caused by excessive deformation of the local area of the pipe; and uniform work hardening can improve the overall strength and hardness of the pipe, and meanwhile, certain toughness is kept, so that the pipe has better comprehensive performance in subsequent use.

The utility model relates to the technical field of special-shaped monofilament drawing die, concretely to a special-shaped monofilament drawing die with optimized R angle, including the drawing powder box, the outer wall of drawing powder box penetrates and has the copper monofilament of sliding installation, the left -hand end fixed mounting of drawing powder box has the optimization mould, the top of drawing powder box is provided with cooling device, the utility model discloses through the setting of R angle optimization section, through the big opening and R angle pre-shrinkage guide of entry section, the buffer section releases the shrinkage stress through the trapezoidal decreasing structure layering, R angle optimization section adopts the gentle circular arc surface dispersion compression stress, and the gradual change R angle transition forms the stress transition zone of round continuous when reducing the section, effectively inhibits the surface crack and ensures the shape accuracy, the final ejection section passes through the gentle transition stable wire form, and synchronous elimination resilience stress, thereby realizes the special-shaped cold drawing forming of copper monofilament high accuracy, high smoothness.

The invention relates to the technical field of welding wire drawing forming, in particular to a stranded welding wire continuous rough drawing device and method.The stranded welding wire continuous rough drawing device comprises a drawing machine base, a drawing frame and drawing traction assemblies arranged at the two ends of the drawing frame, and hole drawing dies with the hole diameters decreasing step by step are sequentially arranged on the inner side of the drawing frame in the welding wire conveying direction. The drawing traction assembly drives the rotating component to operate synchronously under the action of the driving mechanism, so that the creeping cylinder generates eccentric swing and axial reciprocating motion in the rotating process, makes contact with the surface of the welding wire periodically and exerts intermittent traction effect on the welding wire, and therefore the welding wire is driven to be continuously conveyed and sequentially passes through the hole drawing dies to complete multi-stage drawing forming. The multiple drawing machine bases can be arranged in a combined mode in the axial direction, and all the traction units keep running at the constant speed, so that speed difference and tension superposition of welding wires between different drawing stations are avoided. According to the invention, the problem that the wire is easy to break due to stress concentration in the traditional roller clamping type drawing process is solved, and the device is suitable for continuous rough drawing processing of the stranded welding wire.

The invention discloses a wire drawing machine for optical cable and cable production, and relates to the technical field of wire drawing machines, the wire drawing machine comprises a wire drawing machine main body and a circular ring, the interior of the wire drawing machine main body is fixedly connected with a second fixing plate, the upper part of the second fixing plate is fixedly connected with a third fixing plate, and one side of the third fixing plate is provided with a diameter adjusting mechanism; the diameter adjusting mechanism comprises a second sliding plate arranged on one side of the third fixing plate, the second sliding plate is fixedly connected with a first arc-shaped plate, one side of the second sliding plate is in meshed connection with a second gear, and the second gear is in meshed connection with a first sliding plate. And finally, the diameter adjusting mechanism operates simultaneously, so that a mold consisting of a first arc-shaped plate, a second arc-shaped plate and a third arc-shaped plate is close to the center simultaneously, the diameter of the mold is reduced, the diameter of a drawn wire is ensured to be within a preset tolerance range, and unqualified products are reduced.