KR20000038500A - Device for removing scales on surface of wire - Google Patents

Abstract

PURPOSE: A removal device of scales on the surface of a wire is provided to improve roughness on the surface of a wire of which scales are removed and to completely remove scales by maintaining pressurizing force of brushes without regard to the abrasion of the brushes. CONSTITUTION: By abrading brushes(50), pressurizing force is reduced. A pressurizing bar(21) is formed to be able to move lengthwise of a spline(42). The brushes including the pressurizing bar and a pressurizing piston(26) move according to the abraded length. Thus, pressurizing force between the brushes and the surface of a wire is kept in constant pressure. In removing scales on the surface of a wire, noise and scale dust are output due to rotational friction of the brushes rotating by contacting to the wire(100). The noise and scale dust are not leaked out of a device via structure of a closed space formed around the brushes and by a soundproof plate(62) and a filter(63) installed on the inner wall of the closed space.

Description

Wire descaling device

The present invention relates to a device for removing a scale generated on the surface of a metal wire, and more particularly, it is installed to face each other in detail to pass the wire between a pair of rotating brushes to remove the surface scale regardless of the wear of the brush The present invention relates to a surface descaling apparatus for wires, in which the surface roughness of the wires in the descaled state is improved along with the complete removal of the scales by keeping the pressing force of the brush always applied to the brush.

In general, the material wire for drawing or stranded wire is subjected to the removal of the scale formed on the wire surface as a pretreatment process as the scale is formed on the surface thereof.

Conventional wire surface descaling methods are largely divided into two types: a pickling method for chemically removing scale using sulfuric acid or hydrochloric acid and a method for removing scale by mechanical friction using a brush.

First, the pickling method using sulfuric acid or hydrochloric acid has the advantage of excellent scale removal efficiency, but due to the toxicity of hydrochloric acid or sulfuric acid used for pickling, much care is required during operation and there is a problem of environmental pollution. In addition, it is pointed out that the pickling facility itself is exposed to the corrosion atmosphere, and thus the facility maintenance cost is high.

In addition, the conventional mechanical wire descaling device is a structure to remove the scale of the wire by connecting a common brush on the market in series with the motor to pass the brush surface to rotate the wire, in the brush structure such brush and Since the distance between the wire surfaces is fixed, when the wear of the brush occurs, the distance between the brush and the wire surface changes, and the degree of peeling of the scale of the wire surface varies according to the wear of the brush. have.

In addition, in the conventional mechanical brush structure, it is difficult to obtain a wire surface showing uniform roughness because the rotation speed of the brush and the distance between the brush and the wire surface are kept constant without considering the scale characteristics of the wire surface. Therefore, there is a problem that damage occurs on the surface of the wire to reduce the quality of the wire.

Accordingly, the present invention is to solve the above-mentioned disadvantages and problems shown in the conventional wire surface descaling apparatus, and the brush is removed in order to remove the surface scale by passing a wire between a pair of rotating brushes installed opposite to each other. It is an object of the present invention to provide a surface descaling device for wires which improves the surface roughness of the wires with the scales removed with the complete removal of the scales by maintaining the same pressing force of the brush applied to the wires regardless of wear. have.

Another object of the present invention is to detect when the wear of the brush by a continuous use of the device more than a certain level to detect the time to replace the brush through the alarm means to improve the workability of the surface scale removal device of the wire To provide.

1 is a perspective view showing the overall structure of an embodiment of the present invention;

Figure 2 is a partial longitudinal cross-sectional view of an embodiment of the present invention;

Figure 3 is an enlarged cross-sectional view of the main part of the embodiment of the present invention;

Figure 4 is a partial cross-sectional view of the brush portion of an embodiment of the present invention;

Figure 5 is an exploded perspective view of the operating portion of the embodiment device according to the present invention.

((Explanation of symbols for main parts of drawing))

One ; Substrate 2; Drive motor 4; frame

10; Drive unit 20; Crimping portion 21; Crimp rod

22; Spline groove 23; Flange 24; Stoppering

25; Bearing 26; Crimped piston 27; Cylinder ring

28; Sensor 30; Partition wall 31; Crimp housing

33; Cylinder 34; Pushing holes 35a, 35b; Enclosed Space

36; Return hole 37; Sensor hole 40; reel

41; Pulley 42; Spline 43; bearing

44; Stationary body 45; Rotary part housing 46; Rotating shaft

50; Brush 60; Descaling section 61; septum

62; Soundproof plates 63; Filter 70; Wire Guide

71; Bushing 72; Wire guide plate 100; wire

200; Wire feed wheel 201; Wire winding wheel

The object of the present invention is installed opposite to each other and a pair of brushes to rotate while applying a constant pressing force to the surface of the material wire passing between them, the motor as a drive source for the brush, and the rotational driving force of the motor to the brush transfer It is achieved by a structure consisting of a power transmission means, a pneumatic static pressure holding means for maintaining a predetermined constant pressing force irrespective of the wear of the brush, an alarm means for notifying when to replace the brush and a frame for supporting the devices.

At this time, the brush is preferably configured to have a structure in which a rigid steel wire of 0.10-0.40mm diameter having a length of 20-100mm on the rotating disk having a diameter of 100-400mm is compact.

In addition, the power transmission means for transmitting the power of the motor to the brush is connected to the motor and the timing belt is installed on one side of the frame and the rotating shaft rotates, and formed integrally with the rotating shaft to rotate and spline grooves formed on the outer peripheral surface A spline and a spline groove that is fitted to the spline groove are provided on the inner circumferential surface to be extrapolated to be movable in the longitudinal direction of the spline, and the outer end thereof is composed of a crimping rod coupled to a brush.

On the other hand, the pneumatic-type static pressure holding means is installed in a state in which the bearing is interposed on the outer side of the pressing rod and the pressing rod which is installed to be movable in the longitudinal direction of the spline with the pressing rod, and the cylinder fixed to the outside of the pressing piston, It consists of a pneumatic supply device that maintains a constant pneumatic pressure in the rear space of the closed space divided into two parts between the piston and the cylinder to apply a constant pressure against the wire surface.

In addition, the alarm means for notifying when the brush is replaced, the detector for detecting a state in which the cylinder including the brush moves forward by the wear of the brush, and the signal detected by the sensor separated into two parts between the piston and the cylinder It is composed of a pneumatic supply device for applying a pneumatic pressure to the front space of the space to retract the piston including the brush.

In addition, the frame serves to support the motor, the power transmission unit, and the brush, by taking a structure that seals the brush around the scale peeling of the actual wire is configured to reduce the noise generated during the scale removal operation. It is.

The wire surface descaling device of the present invention configured as described above may be used in one step (one direction) on the wire movement path between the material wire supply wheel and the wire winding wheel, but two devices may be used for complete removal of the wire surface scale. It is preferable to install in two stages (to be perpendicular to each other).

Details of the above object and technical configuration and the effects thereof according to the present invention will be clearly understood by the following detailed description with reference to the drawings showing preferred embodiments of the present invention.

Figure 1 is a perspective view showing the appearance of an embodiment device according to the invention, Figure 2 is a longitudinal sectional view showing the structure of the device shown in Figure 1, Figure 3 is a main portion of an embodiment device according to the present invention Figure 4 is an enlarged cross-sectional view, Figure 4 is a cross-sectional view of the brush portion of one embodiment of the present invention, Figure 5 is an exploded perspective view of the components constituting the power transmission means and the brush portion of one embodiment of the present invention.

Since the apparatus of the present invention has a symmetrical structure centered on a pair of opposed brushes, only the configuration installed on the left half side of the entire apparatus will be described.

As shown in the drawing, the wire surface descaling apparatus of the present invention includes a driving motor 2 installed at one lower side of the substrate 1 and a driving unit 10 connected to the driving motor 2 by a timing belt 3. It is installed inside the frame 4 installed on 1).

The driving unit 10 includes a scale removing unit 60, a crimping unit 20, and a rotating unit 40, wherein the rotating unit 40 controls the rotational driving force of the driving motor 2 through the timing belt 3. Applied pulley 41, rotary shaft 46 as a rotating body formed integrally with the pulley 41, splines 42 coupled to the outer end of the rotary shaft 46, rotary shaft 46 And a bearing 43 interposed between the outer circumferential surface of the crankshaft and the stationary body 44, and a rotating part housing 45 provided at the outermost side of these parts.

In addition, the crimping unit 20 coupled in a straight line to the inside of the rotating part 40 is provided with a spline groove 22 on one side of the inner circumferential surface of the spline groove to be joined to the spline groove formed in the longitudinal direction on the outer circumferential surface thereof. It consists of a pressing rod 21 which is installed to be movable along the longitudinal direction of the spline by the engagement of the spline groove, and a brush 50 mounted to the flange 23 formed at the outer end of the pressing rod 21.

A stopper ring 24 is fixed to both sides of the outer circumferential surface of the crimping rod 21, and a pair of bearings 25 are respectively installed inside the stopper ring 24, and a cylindrical crimping piston 26 is installed outside. On the other hand, the outer end of the crimping piston 26 is mounted with a crimp housing 31.

By the above configuration, the pressing piston 26, the pressing rod 21, and the brush 50 are rotated in association with the rotary shaft 46, wherein the rotation speed of the brush 50 is 300-2000 rpm. The range of is preferable.

On the other hand, a ring-shaped separating partition 30 is integrally formed in the middle of the outer circumferential surface of the crimping piston 26, and the cylinder 33 maintaining a close contact with the upper surface of the separating partition 30 has a crimping piston 26. On the other hand, the cylinder ring 27 is interposed between the inner end of the cylinder 33 and the outer end of the crimping piston 26, so that the separating partition 30 is disposed between the crimping piston 26 and the cylinder 33. The two sealed spaces 35a and 35b divided by the two exist.

The airtight spaces 35a and 35b are connected to the air hoses 29A and 29B through the pressure feed holes 34 and the return holes 36 formed on the left and right sides of the cylinder 33, respectively, by the air hoses. The reciprocating movement of the crimping piston 26 is enabled by the pneumatic pressure flowing into the sealed spaces 35a and 35b.

In addition, a sensor hole 37 is formed in the vicinity of the return hole 36, and a sensor 28 is installed to detect a replacement time of the brush.

The cylinder 33 having such a structure has a structure in which one side is fixed to the fixing body 44 through a fixing pin, and the other side is fixed to the partition wall 61 of the scale removing unit 60.

On the other hand, the brush 50 mounted on the flange 23 of the crimping rod is located in the inner center portion of the scale removing unit 60, the wire guide plate 72 is installed in front and rear and the partition wall 61 is installed on the left and right sides. The upper plate 2A and the substrate 1 are provided on the upper and lower portions, respectively, to form a closed space, and the soundproof plate 62 is attached to the entire inner circumferential surface thereof.

In addition, a wire guide part 70 is installed at the center of the wire guide plate 72, and a bushing 71 for guiding the material wire 100 is installed at the center of the wire guide plate 72 and the wire guide part 70 and the brush 50. Between the) is provided a filter 63 to prevent the inflow of the scale.

In the drawings, reference numeral 200 denotes a wire feeding wheel, and 201 denotes a wire winding wheel.

Looking at the surface scale removal process of the wire using the device of the present invention having such a structure as follows.

First, as shown in FIG. 1, a wire surface descaling device of the present invention is installed on a material wire movement path between a wire supply wheel 200 and a wire winding wheel 201 to form a material between a pair of brushes 50. Allow wire 100 to pass through.

At this time, the surface scale state of the material wire 100 is checked to set an appropriate pneumatic pressure to act as a closed space portion 35a inside the cylinder 20, and the rotational speed of the driving motor 2 and the wire winding wheel ( 201) is set appropriately.

After the setting operation is completed as described above, the driving motor is driven to remove the scale generated on the surface of the wire 100 by rotating the brush 50 in a state in which a constant pressing force is applied to the surface of the moving material wire 100. Will be made, the wire is descaled is wound on the wire winding wheel (201).

The brush 50 in the descaling operation as described above has a constant compressive force at all times by the predetermined compression pneumatic rod 21 including the crimping piston 26 and the brush 50 coupled thereto to the surface of the wire 100 at all times. (In other words, the set static pressure) is maintained, so that the surface of the wire after descaling is always kept constant.

On the other hand, when the length of the brush 50 is reduced by the continuous rotation of the brush 50 and the friction with the wire 100 as described above, the pressing rod 21 is the wire 100 by the reduced length By moving to the side) the pressing force of the brush 50 to the wire surface is always maintained a constant state.

In other words, when the wear of the brush 50 occurs, the compressive force will be reduced accordingly, but in the apparatus of the present invention, the pressing rod 21 is configured to be movable along the longitudinal direction of the spline 42. Since the movement of the brush 50 including the pressing rod 21 and the pressing piston 26 is performed by the wear length of the brush 50, the pressing force between the brush 50 and the wire surface is always at a constant pressure state. .

On the other hand, during the wire surface descaling operation as described above, noise and scale dust are generated by the rotational friction between the wire 100 and the brush 50 rotating in contact with the wire 100. 50) The leaking to the outside of the apparatus is substantially blocked by the soundproof plate 62 and the filter 63 provided on the sealed space structure and the inner wall of the sealed space.

Next, when the length of the brush 50 becomes very short due to the continuous use of the brush 50, and the level to be replaced is reached, the crimping piston 26 is completely moved toward the wire 100, and the crimping piston Movement of the 26 is sensed by the detector 28 installed on one side of the cylinder 33 to inform the operator of the replacement time of the brush 50 through alarm means such as an alarm sound or an alarm.

In this way, when an alarm sound indicating the timing of brush replacement is activated, the pneumatic pressure is moved to the sealed space 33b inside the cylinder 33 through the return hole 36 while the motor is stopped. The pressing piston 26 including the moving rod 21 is moved to the retreat by the spline 42, and then the brush 50 is replaced with a new one.

In the above embodiment, one scale removing apparatus is installed, and the brush 50 of the apparatus is rotated in a vertical position. For example, the scale removing apparatus is installed in front or rear of the scale removing apparatus in which the brushes are installed in a horizontal state. By installing the descaling device to position the brush in a vertical state, the scale generated on the surface of the wire 100 may be evenly removed over the entire surface.

As described above, the wire surface descaling apparatus of the present invention has a constant setting between the brush and the surface of the wire regardless of the wear of the brush in removing the surface scale by passing the material wire between a pair of rotating brushes As the crimping force always acts, a uniform and low roughness wire is obtained over the entire length of the wire, thereby improving the freshness by reducing the frictional force in the subsequent drawing process.

In addition, since the apparatus of the present invention is configured to remove the scale of the wire surface through mechanical friction by a pair of brushes rotated by a motor, the maintenance cost of the equipment is less than that of the conventional pickling method, and environmental pollution, etc. In addition to eliminating the problem of the installation can be installed in a relatively small space also has the advantage of high space utilization.

Claims (2)

A pair of brushes installed to face each other and rotating while applying a constant pressing force to the surface of the material wire passing therebetween; A rotating shaft connected to the drive motor and rotating, a spline having one side coupled to the rotating shaft and having a spline groove formed on the outer circumference thereof, and a spline groove engaged with the spline groove on the inner circumferential surface thereof so as to move in the longitudinal direction of the spline. And the outer end of the power transmission means consisting of a pressing rod coupled to the brush and There is a constant pneumatic pressure in the rear space of the compressed space which is installed on the outer side of the pressing rod and the compression piston is installed to be movable together with the pressing rod, the cylinder fixedly installed on the outer side of the pressing piston, and the closed space part separated into two parts between the pressing piston and the cylinder. The surface descaling device of the wire, characterized in that it comprises a static pressure holding means consisting of a pneumatic supply device to maintain the brush to apply a predetermined pressure to the wire surface. The cylinder of claim 1, wherein the cylinder detects a state in which the compressed piston including the brush moves due to the wear of the brush to indicate when to replace the brush, and the front side of the sealed space divided into two parts between the compressed piston and the cylinder. Apparatus for removing the surface scale of the wire, characterized in that the pneumatic supply device is installed to apply the pneumatic pressure to the retraction movement of the compressed piston including the brush.