KR20030032986A - A pully block of drawing working device for wire apparatus - Google Patents

Abstract

PURPOSE: A pulley block of wire rod drawing apparatus is provided to improve workability by improving the pulley block applying traction power to wire rod. CONSTITUTION: In a wire rod drawing apparatus comprising a drawing dies for reducing cross section of a wire rod (W) being uncoiled from a bobbin, and a pulley block(30) arranged at the outlet of the drawing dies to pull the wire rod (W) from the drawing dies, the pulley block of the wire rod drawing apparatus is characterized in that the pulley block(30) comprises a speed reducer box(31) at the side of which an output shaft(31a) for reducing power of a motor and outputting the reduced power is projectingly installed; a tapered pulley drum(32) which is connected to the output shaft(31a) of the speed reducer box(31), on the outer circumference(32a) of which the wire rod (W) is spirally coiled for several times, and diameter of which is gradually reduced as it goes from one side to the other side of the pulley drum(32); a taper push roller(33) which is idled as pressing the wire rod (W) coiled on the tapered outer circumference(32a) of the pulley drum(32), and which is ascended or descended through a pneumatic cylinder(40) arranged on the upper part of the speed reducer box(31); and a bobbin part(34) a plurality of metal pipes of which are bonded to the front part of the other side of the pulley drum(32) with the metal pipes being spaced apart from each other in an equal distance in such a way that the metal pipes are formed in a cylinder shape, and in which the wire rod (W) is temporarily stored in the state that the wire rod (W) being uncoiled from the outer circumference(32a) of the pulley drum(32) is bended on the metal pipes as the bobbin part(34) is being rotated along with the pulley drum(32).

Description

Pulley block of wire rod drawing device {A PULLY BLOCK OF DRAWING WORKING DEVICE FOR WIRE APPARATUS}

The present invention relates to a wire rod drawing apparatus, and more particularly to a pulley block of the wire rod drawing processing apparatus for forcibly pulling out the wire rod from the drawing die.

In general, the metal wire is referred to as long and thin of round steel, which is manufactured and sold through a series of processing process to draw the thickness through the drawing draw (DRAWING BENCH). That is, the drawing process is a process of pulling out the stainless steel or titanium wire wound around the bobbin to have a predetermined thickness, usually through a drawing die.

As shown in FIG. 1, the pulley plant value of the conventional wire rod is an idle bobbin 1 on which the wire rod W to be drawn is wound, and a die case (diagram) to reduce the diameter while the wire rod W is pulled out. And a drum pulley block (3) for forcibly pulling the wire rod (W) through the drawing die (2) having a built-in si). The drum pulley block 3 includes a reducer box 5 having a motor (not shown) and a pulley drum 4 which is installed on an upper portion of the reducer box 5 and rotates while the wire rod W is wound several times. ) And a guiding member 6 for guiding the drawn wire W to the upper side of the trochlear drum 4 to the next step.

Accordingly, when the motor (not shown) of the drum pulley block 3 is started and the pulley drum 4 rotates, the drawn wire W is wound on the pulley drum 4 and a traction force is generated to generate an idle bobbin ( The wire rod (W) wound in 1) is released and continuously drawn while passing through the drawing die (2).

However, in such a conventional drawing processing apparatus, the drawn wire (W) is released in a state in which the pulley drum (4) outer periphery is wound several times, a separate guy for guiding the wire (W) released from the pulley drum (4) to another process There is a disadvantage that the ding member 6 or the like is required.

In addition, since the direction in which the wire rod (W) is released from the pulley drum (4), which is mounted on the reducer box (5), is made upward, the post process of the wire rod (W) to be released is difficult.

The present invention is to solve this problem; SUMMARY OF THE INVENTION An object of the present invention is to provide a pulley block of a wire drawing apparatus for improving the pulley block for applying traction to the wire rod, which can facilitate the drawing process of the wire rod and its subsequent process.

Figure 1 shows a conventional wire drawing factory value.

Figure 2 schematically shows the wire rod drawing plant factory in accordance with the present invention.

3 is a perspective view showing the structure of the pulley block according to the present invention.

4 is a side view of the pulley block viewed from the arrow IV in FIG. 3.

* Description of the symbols for the main parts of the drawings *

10. Bobbin 20. Invalidice

30. Pulley block 31. Reducer box

32. Pulley drum 33. Push roller

34. Bobbin Department

The present invention for achieving this object is;

A wire rod drawing apparatus having a drawing die for reducing a cross section of a wire rod released from a bobbin, and a pulley block disposed on an outlet side of the drawing die and pulling a wire rod from the drawing die;

The pulley block is; A reducer box provided so that an output shaft for decelerating and outputting power of the motor protrudes from the side; A tapered pulley drum, which is coupled to the output shaft of the reducer box and rotates while the wire rod is spirally wound on the outer circumference, and gradually decreases in diameter from one side to the other side; A tapered push roller which is idling while pressing the wire wound around the tapered outer circumference of the pulley drum and is arranged to be lifted and lowered through a pneumatic cylinder disposed on the top of the reducer box; A plurality of metal pipes are joined to the other end portion of the pulley drum at equal intervals to form a tubular shape, and the bobbin portion is temporarily stored in a state in which the wire rod released from the outer periphery of the pulley drum is bent while rotating together with the pulley drum. It is done.

In addition, one side of the pulley drum is characterized in that the outward flange is expanded integrally provided to prevent the departure of the wire rod.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the wire rod drawing mill factory according to the present invention has an idle bobbin 10 on which the wire rod W to be drawn is wound, and a drawing die for drawing the wire rod released from the idle bobbin 10. 20 and a pulley block 30 disposed on the exit side of the drawing die 20 and drawing the wire rod W therefrom, which are arranged inline.

The drawing die 20 has an oil box 21 on the housing through which the wire rod W passes and the drawing oil 22 is stored therein, and the wire rod W passing through the inside of the oil box 21 is pulled out. The die case 24 is provided with the die case 24 accommodated so that plastic deformation may be carried out. Therefore, when the wire W wound around the idle bobbin 10 exits the die case 24, its cross section is reduced and becomes generally uniform.

And the pulley block 30 is a reduction gear box 31 for decelerating and outputting power of a motor (not shown), and is disposed on the side of the reduction gear box 31 and rotated while the wire rod W is wound in a spiral shape. A pulley drum 32 that exerts traction force, a push roller 33 idling while pressing the wire rod W wound around the outer periphery of the pulley drum 32, and a wire rod W released from the outer periphery of the pulley drum 32 Although the bobbin part 34 is temporarily stored, the detailed structure thereof will be described with reference to FIGS. 3 and 4 as follows.

First, a plurality of gears are arranged to form gear trains in order to reduce power of a motor (not shown) in the reducer box 31, and an output shaft 31a is provided to protrude from the side of the reducer box 31.

The pulley drum 32 is coupled to the output shaft 31a of the reduction gear box 31 and rotates. The wire 32 drawn out of the drawing die 20 is spirally wound on its outer circumference 32a. It is wound several times. Therefore, when the pulley drum 32 rotates, the wire rod W also rotates while being in close contact with the pulley drum 32 outer periphery 32a to exert traction.

The pulley drum 32 is disposed in the transverse direction on the side of the reducer box 31, so that the drawn wire (W) is pulled out in the horizontal direction. In addition, the trochlear drum 32 is made smaller in diameter from one side to the other side, and has an outer periphery 32a having a predetermined angle tapered shape. In the embodiment of the present invention was configured to have a taper angle (θ) of about 3 ° (± 1), this is to allow the drawn wire (W) to be guided to the side of the bobbin portion 34 to be described later easily loosened. .

In addition, one side of the pulley drum 32 is integrally provided with an outward flange 32b of expanded diameter, which is to prevent the departure of the wire rod (W) entering the pulley drum (32).

In addition, the push rollers 33 are mounted on brackets 41 which are arranged to be lowered and lowered through the pneumatic cylinder 40 at the upper portion of the pulley drum 32, respectively, and friction with the outer circumference 32a of the pulley drum 32. While idling. This push roller 33 is also made of a tapered roll to rotate while applying a uniform pressure to the outer periphery (32a) of the pulley drum (32). Therefore, by the load transmitted from the tapered push roller 33, the traction force of the wire rod (W) is improved, thereby causing the pulley drum (32) does not run.

Meanwhile, as described above, the bobbin part 34 is temporarily stored in the state where the wire rod W released from the outer periphery 32a of the pulley drum 32 is bent. Two metal pipes are joined at equal intervals to form a cylindrical shape in the coaxial direction with the trochlear drum 32. Accordingly, the bobbin portion 34 rotates together with the pulley drum 32, and the wire rod W released from the pulley drum 32 is pushed toward the bobbin portion 34 side.

Next, the operation of the pulley block according to the present invention configured as described above and the effects thereof will be described.

First, as the motor of the pulley block 30 is driven, the pulley drum 32 disposed on the side of the reducer box 31 rotates, whereby the wire rod W traction is generated.

That is, since the wire rod W is wound several times spirally on the outer circumference 32a of the pulley drum 32 and grounded by the tapered push roller 33, the wire rod W is rotated when the pulley drum 32 rotates. It is pulled in the direction of arrow F1 of FIG. 3 without slipping.

Therefore, the wire W wound around the idle bobbin 10 exits the drawing die 20 and is reduced in diameter, and at the same time, the surface is uniform. At this time, the drawing oil 22 stored in the oil box 21 is stuck to the surface of the wire (W) before being drawn, thereby improving the surface roughness during drawing process and thereby excellent surface gloss.

The wire rod W that is drawn out while being drawn continuously is temporarily wound in a spiral on the outer circumference 32a of the pulley drum 32 and then released again. That is, the drawn wire (W) is pushed to the horizontal direction, that is, the bobbin part 34 side because it exits between the outer periphery 32a of the pulley drum 32 and the tapered push roller 33 and at the same time does not take any load. Exit (see arrow F2 directions in FIGS. 3 and 4).

This phenomenon is because the outer circumference 32a of the trochlear drum 32 is formed of a tapered surface inclined from one side to the other side. And the wire rod (W) deviating from the outer periphery (32a) of the pulley drum 32 is continuously pushed out to the bobbin portion 34 side and temporarily stored in the bending state.

Therefore, the drawn wire (W) is temporarily stored in the bobbin portion, it is possible to more easily cut the next step of moving to another process or continuous processing by cutting a certain amount.

As described in detail above; According to the pulley block of the wire drawing apparatus according to the present invention, the wire rod exiting the drawing die is wound on the outer periphery of the tapered pulley drum arranged in the horizontal direction and at the same time closely contacted by the tapered push roller. Therefore, when the tapered pulley drum rotates, the drawn wire is continuously pushed out in the transverse direction of the pulley drum and temporarily stored in the bobbin, so that the next step of transferring the drawn wire to another process or continuously processing the wire is easier. There is an effect that can be made, thereby increasing the work productivity.

Claims (2)

A drawing die 20 for reducing the cross section of the wire rod W released from the bobbin 10 and an outlet side of the drawing dice 20 to draw the wire rod W from the drawing die 20. In the wire drawing process apparatus having a pulley block 30; The pulley block 30; A reducer box 31 provided with an output shaft 31a for decelerating and outputting power of the motor protruding from the side thereof; Coupled to the output shaft (31a) of the reducer box 31 and the outer periphery (32a) is rotated while winding the wire (W) several times in a spiral, tapered pulley drum 32 made of a smaller diameter gradually from one side to the other side and; Taper push roller which is idling while pressing the wire (W) wound around the tapered outer periphery (32a) of the pulley drum 32, the tapered push roller is arranged to move up and down through the pneumatic cylinder (40) disposed on the top of the reducer box (31) 33; Wire rods (W) released from the outer circumference (32a) of the pulley drum (32) while rotating together with the pulley drum (32) to form a cylindrical shape by joining a plurality of metal pipes at equal intervals at the other end of the pulley drum (32) Pulley block of the wire drawing device, characterized in that it comprises a bobbin portion (34) temporarily stored in a state of bending). The method of claim 1, One side of the pulley drum 32, the pulley block of the wire drawing device, characterized in that the outward flange 32b is expanded integrally provided to prevent the separation of the wire (W).