KR20100089607A - Apparatus for forming wire - Google Patents

Abstract

PURPOSE: A steel wire molding device is provided to minimize scales formed on the surface of a steel wire by rapidly cooling the steel wire passed through a negative electrode roller in a water cooling bath. CONSTITUTION: A steel wire molding device comprises a pulley(11), an electrical annealing unit(20), a frame(40), a bobbin(60), and a tension regulator(50). The torque of a drive motor(M) is delivered to the pulley. A steel wire(W) passing through the pulley is provided to the electrical annealing unit. A positive electrode roller(21) and a negative electrode roller(25) are arranged on the top and bottom of the electrical annealing unit. The steel wire is heated with an electrical resistance while passing from the positive electrode roller to the negative electrode roller. The frame is arranged on a side of the electrical annealing unit. A water cooling bath(41) is installed in the top of the frame, and the steel wire discharged from the water cooling bath is dried with an air spray nozzle(45).

Description

Steel Wire Forming Equipment {APPARATUS FOR FORMING WIRE}

The present invention relates to a wire forming apparatus for drawing wires of 5.5 mm to 16 mm in diameter and forming them into steel wires (or wires) having a diameter of 5 mm or less, and more specifically, directly providing steel wires discharged from the drawing device to an annealing apparatus. And a negative electrode roller and a positive electrode roller of the electro-annealing apparatus are disposed up and down, and a water cooling tank is disposed in proximity to the negative electrode roller, and a steel wire forming apparatus for rapidly cooling a heated steel wire in a water cooling tank. will be.

In general, primary wire rods belonging to crude steel among rolled steels generally have a diameter of 5.5 mm to 16 mm, and are drawn as steel wires (or iron wires) by drawing primary wires. Molding). In particular, drawing out by steel wire having a diameter of 5 mm or less is called drawing.

Then, the steel wire formed by the drawing machine is heat-treated to remove the work hardening generated during the cold drawing process.

Republic of Korea Patent No. 10-0067812 (registered November 18, 1993) "electric annealing apparatus such as iron wire" is introduced.

The annealing device such as the wire has a copper roller connected to the + pole and a copper roller connected to the-pole, the copper roller is formed on the outer surface of the transfer grooves for transferring the iron wire at a predetermined interval, the outer roller is outside It is made of chromium copper, the middle is made of cast steel, and the inside is made of ceramic. Coolant is circulated in the interior space of the ceramic, and the roller roller is rotatably supported at both ends, and the sprocket wheel is fixed to the cast steel part. It is connected to the sprocket wheel of the chain and is rotatable, the electricity supply device for supplying electricity to the copper roller has an arc-shaped electrode plate of brass on the top, the electrode plate is formed with a spiral formed on the bottom perpendicular to the pedestal It is supported on the supporting rod, and the electrode plate is connected to the spiral of the supporting rod so that the electrode The wire guide device for guiding the steel wires pushed upward by a spring installed on the coupled nut and transported between the copper rollers is composed of a guide box fixed on the pedestal and having ceramic conduits through which the wires pass. A ceramic ring is mounted on the insulator pedestal to lift it out of the copper roller.

However, in the electric annealing device such as the iron wire, the copper roller which catches the (+) pole and the copper roller which catches the (-) pole are arranged horizontally, so that the positive pole copper roller is horizontally in the process of heating the wire by electricity. When transported between and (-) Far East Roller, deflection phenomenon occurs in the horizontally transported wire, and the diameter of the heated Wire can be changed by deflection of the wire, so that the (+) Far East Roller and (-) If the distance between the Far Eastern Rollers cannot be increased and the distance between the (+) Far Eastern Roller and the (-) Far Eastern Roller is small, the voltage must be heated to the unwinding temperature while the wire passes through the copper roller. Because of this, the risk of electrical safety is high due to this, and there is a high risk of damage to the wire.

In addition, the electric annealing device such as the iron wire is heated to the annealing temperature, after the iron wire is cooled in the air by the air cooling method, the scale is generated on the surface of the iron wire, there is a disadvantage that pickling is necessarily required, furthermore, After winding the thin wire formed by a drawing device (drawing machine) to the wire release device, there is a disadvantage in that the wire is released from the wire release device to supply the wire to the electric annealing device.

Therefore, an object of the present invention can provide a steel wire discharged from the drawing device directly to the annealing device, the negative electrode roller and the positive electrode roller of the electro-annealing device is arranged up and down, so that the wire is a negative electrode roller and a positive electrode When passing through the roller, the steel wire can be heated to the heat treatment temperature to maximize the electric resistance heating section of the steel wire, and the heated steel wire passed through the negative electrode roller is quenched in a water cooling tank to generate scale on the surface of the steel wire. It is to provide a wire forming apparatus that can minimize the work.

Steel wire forming apparatus according to the present invention for achieving the above object is a pulley for the power of the drive motor for driving the drawing machine is transmitted to the first power transmission shaft by the first belt, to pull the steel wire drawn by the drawing machine Is mounted on the first power transmission shaft, the power of the drive motor is transmitted to the pulley, the steel wire passing through the pulley is supplied to the annealing device, the positive electrode roller and the negative electrode roller of the annealing device up and down The electrical resistance is heated in the course of passing the steel wires from the negative electrode rollers to the positive electrode rollers, and the electrical resistance is heated to the heat treatment temperature in the process of passing the negative electrode rollers from the positive electrode rollers to the side of the annealing apparatus. A water cooling tank is mounted at the upper end of the arranged frame, so that the water cooling tank is located close to the negative electrode roller. By being disposed, the steel wire heated to the heat treatment temperature is quenched by the water cooling tank, the air spray nozzle is mounted at the steel wire outlet of the water cooling tank, and the steel wire discharged from the water cooling tank by the air spray nozzle is dried and mounted on the frame. The tension adjusting device is disposed under the water cooling tank, and when the steel wire drawn out of the water cooling tank is wound on the bobbin, the tension of the winding steel wire is adjusted by the tension adjusting device.

In addition, the steel wire forming apparatus according to the present invention is connected to the first shaft and the lower shaft on which the positive electrode roller is mounted by a second belt, and the upper shaft on which the lower shaft and the negative electrode roller are mounted is a third belt. Connected to the motor, power of the driving motor is transmitted to the positive electrode roller and the negative electrode roller, and the first carbon brush of the power supply is connected to the first connecting roller of the lower shaft, so that the positive power supply is the first connecting roller. Is supplied to the positive electrode roller through the lower shaft, and the second carbon brush of the power supply is connected to the second connecting roller of the upper shaft, so that (-) power is supplied from the second connecting roller to the negative electrode roller through the upper shaft. It is characterized in that the supply.

The electro-annealing device is rotatably mounted to the lower shaft and the upper shaft, respectively, mounted on the bearings mounted on the frame, the positive electrode roller is mounted on one end of the lower shaft, the first connecting roller and the other end of the lower shaft and Two pulleys are mounted, and a first carbon brush connected to the first connecting roller is mounted on the frame by a support, a negative electrode roller is mounted on one end of the upper shaft, and a second connection on the other end of the upper shaft. A roller and a pulley are mounted, and the second carbon brush connected to the second connecting roller is mounted to the frame by a support.

The negative electrode roller has a first groove and a second groove formed on the circumferential surface, the positive electrode roller has a third groove formed on the circumferential surface, and the steel wire passing the pulley is guided to the first groove of the negative electrode roller. The steel wire is guided from the first groove of the negative electrode roller to the third groove of the positive electrode roller, and again guided from the third groove of the positive electrode roller to the second groove of the negative electrode roller.

As a result, in the wire forming apparatus according to the present invention, the drive motor power of the fresh machine is transferred to the electric annealing apparatus, so that no separate driving means for driving the electrode roller of the electric annealing apparatus is required, and the negative electrode of the annealing apparatus is required. Since the roller and the positive electrode roller are disposed up and down, the deflection of the steel wire can be prevented, the change of the diameter of the steel wire can be minimized during the heating process, and the heating section of the steel wire for heat treatment is maximized, so that it is relatively low. Electrical resistance can be heated to the heat treatment temperature using voltage, which prevents the steel wire from being cut or overannealed by momentary high voltage, ensuring the quality of the product, and heating the heated steel It is possible to minimize the occurrence of scale on the surface of the steel wire by quenching at, so no pickling after annealing, There is an effect that can save the dragon.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, in the wire forming apparatus according to the present invention, the power of the driving motor M for driving the drawing machine 10 is transmitted to the first power transmission shaft S1 by the first belt B1, and the drawing machine A pulley 11 for pulling the steel wire W drawn by the 10 is mounted to the first power transmission shaft S1 so that power of the driving motor M is transmitted to the pulley 11. The steel wire W passing through the pulley 11 is supplied to the electro-annealing device 20, and the positive electrode roller 21 and the negative electrode roller 25 of the electro-annealing device 20 are disposed up and down, The electrical resistance is heated in the process of passing through the positive electrode roller 21 in the negative electrode roller 25, and the electric power is heated up to the heat treatment temperature in the process of passing through the negative electrode roller 25 in the positive electrode roller 21. The resistance is heated, and the water cooling tank 41 is mounted on the upper end of the frame 40 disposed on the side of the annealing apparatus 20. Uh, since the water cooling tank 41 is disposed close to the negative electrode roller 25, the steel wire W heated up to the heat treatment temperature is quenched by the water cooling tank 41, and the steel wire of the water cooling tank 41 is formed. The air spray nozzle 45 is mounted at the discharge port, and the steel wire W discharged from the water cooling tank 41 by the air spray nozzle 45 is dried, and the tension adjusting device 50 mounted to the frame 40. Is disposed below the water cooling tank 41, when the wire drawn out from the water cooling tank 41 is wound on the bobbin 60, the tension of the wire to be wound is adjusted by the tension control device (50).

Referring to FIG. 2, in addition, in the steel wire linear device according to the present invention, the first power transmission shaft S1 and the lower shaft S2 on which the positive electrode roller 21 is mounted are connected by a second belt B2. The lower shaft S2 and the upper shaft S3 on which the negative electrode roller 25 is mounted are connected by the third belt B3, so that the driving motor M is powered by the positive electrode roller 21. And a negative electrode roller 25, a first carbon brush 35 of a power supply device (not shown) is connected to the first connecting roller 22 of the lower shaft S2, so as to supply a positive power. The first connecting roller 22 is supplied to the positive electrode roller 21 through the lower shaft S2, and the second carbon brush 36 of the power supply device is supplied to the second connecting roller 26 of the upper shaft S3. ) Is connected, and a negative (-) power supply is supplied from the second connecting roller 26 to the negative electrode roller 25 through the upper shaft S3.

Various types of the drawing machine are already well known, and thus detailed description thereof will be omitted.

Referring to FIG. 3, the electric annealing device 20 has a lower shaft S2 and an upper shaft S3 rotatably mounted on the bearings 31 and 32 mounted to the frame 30, respectively, A positive electrode roller 21 is mounted at one end of the shaft S2, and a first connecting roller 22 and two pulleys 23, 24 are mounted at the other end of the lower shaft S2, and the first connection is made. A first carbon brush 35 connected to the roller 22 is mounted to the frame 30 by a support 34, and a negative electrode roller 25 is mounted to one end of the upper shaft S3, and the upper portion The second connecting roller 26 and the pulley 27 are mounted on the other end of the shaft S3, and the second carbon brush 36 connected to the second connecting roller 22 is supported by the frame 37 by the support table 37. 30).

Referring to FIG. 4, the negative electrode roller 25 has a first groove 251 and a second groove 252 formed on the circumferential surface thereof, and the positive electrode roller 21 has a third groove 211 formed on the circumferential surface thereof. Is formed, and the steel wire W passing through the pulley 11 is guided to the first groove 251 of the negative electrode roller 25 so that the steel wire is formed in the first groove 251 of the negative electrode roller 25. It is guided to the third groove 211 of the positive electrode roller, and then guided to the second groove 252 of the negative electrode roller 25 from the third groove 211 of the positive electrode roller 21.

As a result, the electric resistance heating in the course of passing the steel wire W through the section L1 between the first groove 251 of the negative electrode roller 25 and the third groove 211 of the positive electrode roller 21. And is heated in the course of passing through the section L2 between the third groove 211 of the positive electrode roller 21 and the second groove 252 of the negative electrode roller 25, thereby heating the heating section of the steel wire for heat treatment. By maximizing the resistance, the steel wire can be heated to a heat treatment temperature using a relatively lower voltage than the conventional one, and the wire can be prevented from being cut or overannealed by an instantaneous high voltage.

The structure of the (-) electrode roller and the (+) electrode roller is introduced in the Republic of Korea Patent No. 10-0067812 (name of the invention: electric annealing device such as iron wire), a detailed description thereof will be omitted.

The structure of the water cooling tank 40, the air spray nozzle 45, the tension control device 50 and the bobbin 60 is already known, and a detailed description thereof will be omitted.

In the wire forming apparatus according to the present invention configured as described above, the positive electrode roller 21 and the negative electrode roller of the pulley 11 and the electric annealing device 20 are driven by the power of the drive motor M for driving the drawing machine 10. As it is transmitted to 25, a separate power means for driving the positive electrode roller 21 and the negative electrode roller 25 of the pulley 11 and the annealing device 20 is not required, the electric annealing device 20 Negative electrode roller 25 and positive electrode roller 25 of the () is arranged up and down, can prevent the deflection of the steel wire, minimize the diameter change of the steel wire during the heating process, the wire (W) is a negative electrode roller The electrical resistance is heated in the process of passing through the section L1 between the first groove 251 of 25 and the third groove 211 of the positive electrode roller 21, and the third groove of the positive electrode roller 21. In the process of passing through the section (L2) between the 211 and the second groove 252 of the negative electrode roller 25 Thus, by maximizing the heating section of the steel wire for heat treatment, it is possible to heat the wire resistance to the heat treatment temperature using a relatively lower voltage than the conventional, thereby preventing the steel wire from being broken by the instantaneous high voltage, Product quality can be guaranteed.

Then, the water cooling tank 40 is disposed in close proximity to the negative electrode roller 25, the steel wire (W) heated up to the heat treatment temperature is quenched immediately, it is possible to prevent the generation of scale on the surface of the steel wire, There is an advantage that the pickling process can be omitted. This is because the present invention is applied to steel wire of mild steel such as iron wire having a low carbon content, so that residual stress of the steel wire can be removed without causing brittleness to the steel wire.

1 is a front view schematically showing a wire forming apparatus according to the present invention

Figure 2 is a block diagram showing a power transmission relationship of the steel wire forming apparatus according to the present invention

3 is a cross-sectional view taken along line A-A of FIG. 1 showing the annealing apparatus;

4 is a perspective view schematically showing an example in which steel wire passes through a negative electrode roller and a positive electrode roller for electric resistance heating;

Claims (4)

The power of the driving motor M for driving the drawing machine 10 is transmitted to the first power transmission shaft S1 by the first belt B1 and to pull the steel wire W drawn by the drawing machine 10. The pulley 11 is mounted to the first power transmission shaft S1 so that the power of the driving motor M is transmitted to the pulley 11, and the steel wire W passing through the pulley 11 is electrically annealed. Supplied to the apparatus 20, and the positive electrode roller 21 and the negative electrode roller 25 of the annealing apparatus 20 are disposed up and down, so that the steel wire W is connected to the negative electrode roller 25 from the positive electrode roller. Electrical resistance is heated in the process of passing through (21), and electrical resistance is heated to the heat treatment temperature in the process of passing through the negative electrode roller (25) in the positive electrode roller (21), the side of the annealing apparatus (20) The water cooling tank 41 is mounted on the upper end of the frame 40, and the water cooling tank 41 is close to the negative electrode roller 25. The steel wire W heated up to the heat treatment temperature is quenched by the water cooling tank 41, and the air spray nozzle 45 is mounted at the steel wire discharge port of the water cooling tank 41, so that the air spray nozzle ( The steel wire W discharged from the water cooling tank 41 is dried by the 45, and the tension adjusting device 50 mounted to the frame 40 is disposed below the water cooling tank 41, and the water cooling tank 41 is disposed. When the wire drawn out from the) is wound on the bobbin 60, the tension of the wire to be wound is adjusted by the tension control device 50, characterized in that the wire forming apparatus. The method of claim 1, The lower shaft S2 on which the first power transmission shaft S1 and the positive electrode roller 21 are mounted is connected by a second belt B2, and the lower shaft S2 and the negative electrode roller 25 are connected to each other. The mounted upper shaft S3 is connected by the third belt B3 so that the power of the driving motor M is transmitted to the positive electrode roller 21 and the negative electrode roller 25 and the lower shaft S2 The first carbon brush 35 of the power supply device is connected to the first connecting roller 22 so that the positive power supply is connected from the first connecting roller 22 to the positive electrode roller 21 through the lower shaft S2. Supplied, the second carbon brush 36 of the power supply device is connected to the second connecting roller 26 of the upper shaft S3, so that (-) power is supplied from the second connecting roller 26 to the upper shaft S3. Wire-forming apparatus, characterized in that supplied to the negative electrode roller 25 through. The method according to claim 1 or 2, The electric annealing device 20 is the lower shaft (S2) and the upper shaft (S3) rotatably mounted to the bearings (31, 32) mounted to the frame 30, respectively, one end of the lower shaft (S2) A positive electrode roller 21 is mounted on the other end, and a first connecting roller 22 and two pulleys 23 and 24 are mounted on the other end of the lower shaft S2, and connected to the first connecting roller 22. The first carbon brush 35 is mounted to the frame 30 by the support 34, the negative electrode roller 25 is mounted on one end of the upper shaft S3, the other end of the upper shaft S3 The second connecting roller 26 and the pulley 27 is mounted on the second carbon roller 36 connected to the second connecting roller 22 to the frame 30 by the support 37 Wire forming machine characterized in that. The method of claim 3, wherein The negative electrode roller 25 has a first groove 251 and a second groove 252 formed on the circumferential surface, and the third electrode 211 is formed on the circumferential surface of the negative electrode roller 21, and the pulley ( 11, the steel wire W passing through is directed to the first groove 251 of the negative electrode roller 25, so that the steel wire is moved to the third groove of the positive electrode roller in the first groove 251 of the negative electrode roller 25. The wire forming apparatus, characterized in that guided to the groove (211), and guided again from the third groove (211) of the positive electrode roller (21) to the second groove (252) of the negative electrode roller (25).

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