KR102381675B1 - Wire grinding device for wire drawing and wire drawing machine having the same - Google Patents

Abstract

A grinding device for drawing a wire rod according to the present invention is configured to grind a surface of a wire rod supplied to a drawing unit which reduces the thickness of the wire rod using dies through which the wire rod can pass. The grinding device for drawing a wire rod comprises: a fixed frame; a rotating frame; a power transmission unit which provides rotational force to the rotating frame; and an abrasive material. The rotating frame includes: a pair of rotating blocks with a rotating block hole through which the wire rod can pass; and a connection stand for connecting the pair of rotating blocks so that the pair of rotating blocks are connected while being spaced apart from each other. The rotating frame is installed on the fixed frame so as to rotate around the rotation center shaft parallel to a transfer direction of the wire rod that passes through the pair of rotating blocks. The abrasive material includes a grinding part which is in contact with the surface of the wire rod that passes through the pair of rotating blocks to grind the surface of the wire rod. The abrasive material is coupled to the connection stand so that the grinding part is placed parallel to the transfer direction of the wire rod. According to the present invention, the surface of the wire rod can be continuously ground without any stoppage in the transfer of the wire rod.

Description

Grinding machine for wire drawing and wire drawing device including the same

The present invention relates to a polishing machine for wire drawing, and more particularly, to a polishing machine for wire drawing capable of improving the surface quality of a wire to be drawn by finely polishing the surface of the wire to be drawn, and a wire drawing apparatus including the same .

In general, a wire rod used for various products is subjected to a drawing process in which the diameter is gradually reduced from the original original wire.

Wire drawing is a metal processing method that uses plasticity of metal to deform metal under the action of dies and external force to obtain desired shape, size, mechanical and physical performance. Wire drawing is a cold process in which a large diameter wire rod is increased into a small diameter wire rod, and the cross-sectional diameter of the wire rod must be uniform after wire drawing.

Wire drawing is done through a wire drawing device. The wire rod drawing apparatus includes a supply bobbin in which a thick original wire is wound on one side, a drawing tank in which the thickness is reduced as the wire rod supplied from the supply bobbin passes, and a recovery bobbin in which the wire rod passing through the wire drawing tank is wound. A conical capstan and a plurality of dies for reducing the thickness of the wire rod are installed in the wire drawing tank. In addition, the lubricating liquid for lubricating the surface of the wire rod is filled in the wire drawing tank.

The wire rod released from the supply bobbin and moved to the drawing tank is guided step by step through the plurality of capstans to the plurality of dies, and the thickness is sequentially decreased and the length is increased while passing through the plurality of dies.

The wire rod, which has been reduced in thickness through such a drawing process, is made into various products through processes such as cutting, banding, and coating.

However, a wire rod whose thickness has been reduced while simply passing through the die generally does not have a high surface quality and thus undergoes a post-process such as coating, and there is a problem in that the coating quality is deteriorated during the coating process.

Registered Patent Publication No. 1040655 (June 13, 2011)

The present invention has been devised in view of the above points, and a polishing machine for wire drawing capable of increasing the surface quality of the drawn wire by uniformly and finely polishing the surface of the wire moving with a die, and a wire drawing apparatus including the same aims to provide

The polishing machine for wire drawing according to the present invention for solving the above object is for wire drawing for polishing the surface of the wire supplied to the wire drawing unit for reducing the thickness of the wire using a die through which the wire can pass A grinder comprising: a fixed frame; A pair of rotation blocks having a hole for the rotation block through which the wire rod can pass, and a connecting rod connecting the pair of rotation blocks in a spaced apart state from each other, the wire rod passing between the pair of rotation blocks a rotating frame installed on the fixed frame so as to be able to rotate about a central axis of rotation parallel to the transport direction; a power transmission unit providing a rotational force to the rotating frame; and an abrasive coupled to the connecting rod so as to be in contact with the surface of the wire passing between the pair of rotation blocks and to polish the surface of the wire, wherein the abrasive is placed in parallel with the conveying direction of the wire. do.

The abrasive may be arranged in pairs so as to face each other with a wire passing between the pair of rotation blocks therebetween.

The polishing machine for wire drawing according to the present invention may include a support unit coupled to the connecting rod to support the abrasive so that the separation distance from the connecting rod can be adjusted.

The support unit includes an adjustment bolt inserted orthogonally to the polishing part into a connection hole formed in the connection rod, one end coupled to the abrasive, and an adjustment nut coupled to the adjustment bolt and screw movement from the outside of the rotation frame. may include

The polishing machine for wire drawing according to the present invention includes a support unit coupled to the connecting rod to support the abrasive, wherein the support unit is coupled to the connecting rod, and an insertion groove is formed in a portion facing the abrasive. A ball joint having a block and a ball coupled to the abrasive and inserted into the insertion groove to tilt the abrasive to the support block, and applying an elastic force to the abrasive in a direction spaced apart from the support block It may include an elastic body disposed so as to be elastically deformable between the abrasive and the support block.

The insertion groove is made of a size larger than the ball, and the ball can be moved in the insertion groove so that the separation distance from the connecting rod can be changed.

The elastic body may be detachably coupled to a support that is detachably coupled to the support block.

An abrasive groove is provided on one side of the abrasive part, and the polishing machine for wire drawing according to the present invention is in contact with the surface of the wire passing between the pair of rotating blocks so that a lubricant can be applied to the surface of the wire rod in the abrasive groove. It may include; a lubricating member to be coupled.

The polishing machine for wire drawing according to the present invention may include;

On the other hand, the wire rod drawing apparatus according to the present invention for solving the above object, the wire rod supply unit for supplying the wire rod; A housing filled with lubricating liquid, a dice installed in the housing to be immersed in the lubricating liquid and having a dice hole through which the wire rod can pass to reduce the thickness of the wire rod, and rotatable on the housing to wind and transport the wire rod a wire drawing unit having a capstan that is installed; and a polishing machine for polishing the surface of the wire rod supplied to the wire drawing unit, wherein the polishing machine includes a fixed frame fixedly installed between the wire rod supply unit and the wire drawing unit, and a rotating block through which the wire rod can pass. A pair of rotating blocks having a hole, and a connecting rod for connecting the pair of rotating blocks in a state of being spaced apart from each other, the rotational central axis parallel to the transfer direction of the wire passing between the pair of rotating blocks A rotating frame installed on the fixed frame so as to be able to rotate around the center, a power transmission unit providing a rotational force to the rotating frame, and a surface of the wire passing between the pair of rotating blocks to be in contact with the surface of the wire to grind the surface of the wire and an abrasive coupled to the connecting rod so that the abrasive unit is provided to be parallel to the transfer direction of the wire rod.

The polishing machine for wire drawing according to the present invention can continuously and precisely polish the surface of the wire without stopping the transfer of the wire supplied to the wire drawing unit.

In addition, the polishing machine for wire drawing according to the present invention has a simple structure, easy replacement of parts, and easy maintenance.

In addition, in the polishing machine for wire drawing according to the present invention, the contact pressure of the abrasive in contact with the surface of the wire in contact with the wire can be variously adjusted.

In addition, the wire rod drawing apparatus according to the present invention can continuously and precisely grind the surface of the wire rod using a polishing machine without stopping the wire rod transfer while the wire rod is being supplied to the wire drawing unit. Therefore, by removing foreign substances or oxides attached to the surface of the wire rod, the surface quality of the wire rod can be improved, and the surface color of the wire rod can be brightened.

1 is a side view schematically showing a wire drawing apparatus according to an embodiment of the present invention.
2 is a plan view illustrating a wire rod supply unit of a wire drawing apparatus according to an embodiment of the present invention.
3 is a perspective view showing a polishing machine of a wire drawing apparatus according to an embodiment of the present invention.
4 is a side view showing a polishing machine of a wire drawing apparatus according to an embodiment of the present invention.
FIG. 5 is an excerpt showing a part of the polishing machine for wire drawing shown in FIG. 4 .
6 to 10 show various modified examples of the polishing machine for wire drawing.

Hereinafter, a polishing machine for wire drawing and a wire drawing apparatus including the same according to the present invention will be described in detail with reference to the drawings.

1 is a side view schematically showing a wire rod drawing apparatus according to an embodiment of the present invention, FIG. 2 is a plan view showing a wire rod supply unit of the wire rod drawing apparatus according to an embodiment of the present invention, and FIG. It is a perspective view showing a polishing machine of a wire drawing apparatus according to an embodiment, and FIG. 4 is a side view showing a polishing machine of a wire drawing apparatus according to an embodiment of the present invention.

As shown in the drawing, the wire rod drawing apparatus 100 according to an embodiment of the present invention includes a wire supply unit 110 for supplying a wire W, and a wire drawing unit for reducing the thickness of the wire W ( 120 , and a polishing machine 200 for polishing the surface of the wire W supplied to the wire drawing unit 120 . In the wire drawing apparatus 100 according to an embodiment of the present invention, the surface quality of the drawn wire W can be improved by uniformly and finely grinding the wire W with the polishing machine 200 to draw the wire.

The wire rod supply unit 110 supplies the wire rod W to be wire-drawn to the wire-drawing unit 120 .

The wire drawing unit 120 decreases the thickness while increasing the wire W supplied from the wire rod supply unit 110 . The drawing unit 120 includes a housing 121 filled with a lubricating liquid R, a pair of capstans 125 and a plurality of dies 130 installed inside the housing 121 . Wire guides 123 may be installed at both ends of the housing 121 , respectively. One wire guide 123 of the pair of wire guides 123 guides the wire W supplied from the wire supply unit 110 to flow into the housing 121, and the other wire guide 123 ) may guide the drawn wire W to be discharged from the housing 121 .

The plurality of dies 130 are disposed on the die holder 133 fixedly installed inside the housing 121 . The die holder 133 may support the plurality of dies 130 to be submerged in the lubricant R. Each of the plurality of dies 130 has a lead-out hole 131 through which the wire W can pass. The outlet-side diameter of the lead-out hole 131 is smaller than the inlet-side diameter. Accordingly, the diameter of the wire W decreases while passing through the lead-out hole 131 of the die 130 . The plurality of dice 130 may have different diameters of the draw-out holes 131 , and various numbers may be arranged in various shapes in the die holder 133 .

The pair of capstans 125 may be disposed on both sides of the die holder 133 to be submerged in the lubricant R. These capstan 125 rotate by receiving rotational force from the capstan driver 127 . Although the drawings show that the pair of capstans 125 are all operated by one capstan driver 127 , the pair of capstans 125 may be rotated by receiving rotational force from each other capstan driver 127 . .

The pair of capstans 125 may draw the wire W to provide a pulling force so that the wire W sequentially passes through the plurality of dies 130 . The wire (W) flowing into the housing 121 passes through one die 130 and is wound around one capstan 125 , while the direction of movement is switched to the opposite direction and passes through the other die 130 . After that, it proceeds to another capstan 125 again. In this way, while the wire W is wound around the pair of capstans 125 a plurality of times inside the housing 121 in this way, the direction thereof is switched several times to pass through the plurality of dies 130 in turn. And the wire (W) gradually decreases in thickness while passing through the plurality of dies 130 in turn, and the wire (W) that has passed through the last dice 130 is discharged from the housing 121 to the winding unit 140 . can be wound up.

In addition to the structure shown, the drawing unit 120 may be changed to various other structures including a plurality of dies 130 and one or more capstans 125 .

As shown, a guide roller 150 is installed between the wire drawing unit 120 and the grinder 200 to guide the wire W that has passed through the grinder 200 to the housing 121 by changing the direction. there is.

The polishing machine 200 may be disposed between the wire rod supply unit 110 and the wire drawing unit 120 to polish the wire W before the wire drawing process is performed. The polishing machine 200 includes a fixed frame 210 , a rotating frame 220 rotatably installed on the fixed frame 210 , and a plurality of abrasives 240 .

The fixed frame 210 is fixedly installed between the wire supply unit 110 and the wire drawing unit 120 to rotatably support the rotating frame 220 .

The rotating frame 220 is installed on the fixed frame 210 to support the plurality of abrasives 240 . The rotation frame 220 includes a pair of rotation blocks 221 spaced apart along the transfer direction of the wire W, and a connecting rod 224 for connecting the pair of rotation blocks 221 spaced apart from each other. do. A rotation block hole 222 through which the wire W can pass is provided in the center of the rotation block 221 . The connecting rod 224 may have a plate-shaped structure to connect a pair of rotation blocks 221 . In the connecting rod 224 , a connecting rod hole 225 is formed to penetrate the wire W in the thickness direction. A plurality of connecting rod holes 225 are arranged to be spaced apart along the transfer direction of the wire rod (W).

The rotating frame 220 rotates by receiving rotational force from the driving unit 227 installed on the fixed frame 210 . The driving unit 227 includes a driving unit 228 that generates a driving force, and a power transmission unit 230 that transmits the driving force of the driving unit 228 to the rotating frame 220 . The power transmission unit 230 includes a driving pulley 231 connected to the driver 228 to rotate, and a driven pulley 233 coupled to the rotating frame 220 to rotate together with the rotating frame 220 , and driving. and a belt 236 connecting the pulley 231 and the driven pulley 233 . The driven pulley 233 is coupled to one rotation block 221 of the rotation frame 220 through a connecting shaft 238 and is disposed coaxially with the rotation frame 220 . The driven pulley 233 is provided with a driven pulley hole 234 through which the wire W can pass, and the connecting shaft 238 is connected to the driven pulley hole 234 so that the wire W can pass through. A shaft hole 239 is provided.

The rotating frame 220 is disposed so that the wire W supplied from the wire supply unit 110 can pass through the central axis of rotation of the rotating frame 220 . That is, the rotating frame 220 is arranged to rotate about a rotational central axis parallel to the transfer direction of the wire (W) passing between the pair of rotation blocks 221 . The wire (W) supplied from the wire supply unit 110 is in the driven pulley hole 234 of the driven pulley 233 , the connecting shaft hole 239 of the connecting shaft 238 , and one rotation block 221 . It can enter the inner space of the rotating frame 220 by sequentially passing through the provided rotating block hole 222 . And the wire W may be discharged from the rotating frame 220 through the rotating block hole 222 provided in the other rotating block 221 . Accordingly, the wire W may pass through the center of the rotating frame 220 to be transferred to the wire drawing unit 120 .

The rotating frame 220 may be changed to various other structures that can rotate by supporting a plurality of abrasives 240 in addition to the illustrated structure. That is, the structure of each of the rotation block 221 and the connecting rod 224 and the connection structure of the rotation block 221 and the connecting rod 224 can be variously changed. In addition, the driving unit 227 that provides rotational force to the rotating frame 220 may be variously changed according to the structure of the rotating frame 220 in addition to the illustrated structure.

The abrasive 240 may be disposed inside the rotation frame 220 to polish the surface of the wire W passing between the pair of rotation blocks 221 . The abrasive 240 is provided with a flat abrasive portion 241 that can be in contact with the surface of the wire (W). The abrasive 240 is coupled to the connecting rod 224 so that the abrasive part 241 is placed parallel to the transfer direction of the wire (W). The abrasives 240 are paired to face each other with the wire W passing between the pair of rotation blocks 221 interposed therebetween, and a plurality of the abrasives 240 are spaced apart from each other in the transport direction of the wire W.

A gap is provided between the pair of abrasives 240 facing each other, and the wire W flowing into the rotation frame 220 may be transferred through the gap between the pair of abrasives 240 . . The size of the gap between the pair of abrasives 240 is almost the same as the width of the wire (W) supplied from the wire supply unit 110, and when the wire (W) passes between the pair of abrasives (240), one The pair of abrasives 240 may be in contact with the surface of the wire W and rotate along the circumference of the wire W to finely grind the wire W.

A connection part 242 is provided on one side of the abrasive 240 . The connection part 242 is coupled to the support unit 250 coupled to the connection rod 224 . The support unit 250 supports the abrasive 240 so that the separation distance from the connecting rod 224 can be adjusted. The support unit 250 includes an adjustment bolt 251 , an adjustment nut 253 , and a tightening nut 255 .

The adjustment bolt 251 is inserted into the connection hole 225 of the connection rod 224 in a direction perpendicular to the polishing part 241 , and one end is coupled to the connection part 242 . The connection part 242 may have a nut structure that can be engaged with the adjustment bolt 251 , or may have various other structures that can be engaged with the adjustment bolt 251 .

The adjustment nut 253 is disposed on the outside of the rotation frame 220 , and is coupled to the adjustment bolt 251 so as to be screwed and supported by the connecting rod 224 . The distance the abrasive 240 is separated from the connecting rod 224 can be adjusted by the user rotating the adjusting nut 253 to screw the adjusting bolt 251 .

The tightening nut 255 is coupled to the adjustment bolt 251 from the inside of the rotation frame 220 to be screwed. The user can adjust the position of the abrasive 240 by turning the adjustment nut 253 and then turn the tightening nut 255 to adhere to the inner surface of the connecting rod 224 to fix the adjustment bolt 251 immovably. Accordingly, the abrasive 240 may be fixed in a position-adjusted state. And when it is necessary to adjust the position of the abrasive 240 or to separate the abrasive 240 from the rotating frame 220, the user first turns the tightening nut 255 to release the fixing bolt 251 and adjust The adjustment bolt 251 can be moved by turning the nut 253 .

In this way, the gap between the pair of abrasives 240 facing each other can be adjusted by using the support unit 250 .

The surface of the wire W transferred from the wire supply unit 110 to the wire drawing unit 120 by the polishing machine 200 may be precisely polished. That is, the wire W transferred from the wire supply unit 110 to the wire drawing unit 120 side is connected to the driven pulley hole 234 of the driven pulley 233 and the connecting shaft hole 239 of the connecting shaft 238 , It sequentially passes through the rotation block hole 222 of the rotation block 221 connected to the shaft 238 and enters the inner space of the rotation frame 220 . In the inner space of the rotation frame 220 , the wire W passes through a plurality of abrasives 240 facing each other in pairs. At this time, while the plurality of abrasives 240 rotate along the circumference of the transferred wire W, each abrasive part 241 contacts the surface of the wire W to grind the surface of the wire W.

When the abrasive 240 rotates in contact with the wire W with a large contact force, the wire W is excessively polished, which may cause a problem in that the elongation strength of the abrasive 240 decreases during the wire drawing process. On the other hand, if the abrasive 240 does not stably contact the wire W, the wire W is not smoothly polished. Therefore, the user can use the support unit 250 to adjust the gap between the pair of abrasives 240 in various ways according to the thickness of the wire W that needs wire drawing so that the surface of the wire W is polished uniformly. can

As described above, the wire drawing apparatus 100 according to an embodiment of the present invention uses the polishing machine 200 without stopping the transfer of the wire W while the wire W is supplied to the drawing unit 120 . Thus, the surface of the wire W can be continuously precision polished. Therefore, by removing foreign substances or oxides attached to the surface of the wire W, the surface quality of the drawn wire W can be improved, and the surface color of the wire W can be brightened.

Meanwhile, FIGS. 6 to 10 show various modified examples of the polishing machine for wire drawing.

First, the polishing machine 300 shown in FIGS. 6 and 7 includes a fixed frame 210 , a rotating frame 220 rotatably installed on the fixed frame 210 , a plurality of abrasives 310 , and a plurality of abrasives and a support unit 320 connecting the 310 to the rotating frame 220 . Here, the fixed frame 210 and the rotating frame 220 are the same as described above.

The abrasive 310 is provided with a flat abrasive part 311 that can be in contact with the surface of the wire (W). The abrasives 310 are paired in pairs to face each other with the transferred wire W therebetween, and a plurality of the abrasives 310 are spaced apart from each other along the transfer direction of the wire W.

The support unit 320 supports the abrasive 310 to be tilted and moved. The support unit 320 includes a support block 321 , a ball joint 329 coupled to the abrasive 310 , and an elastic body 332 disposed between the abrasive 310 and the support block 321 .

The support block 321 is coupled to the connecting rod 224 of the rotating frame 220 through an adjustment bolt 325 . The adjustment bolt 325 is inserted into the connection hole 225 of the connection rod 224 in a direction perpendicular to the polishing part 311 , and one end is coupled to the support block 321 . The adjusting bolt 325 is coupled to the connecting rod 224 by an adjusting nut 327 . The adjusting nut 327 is disposed on the outside of the rotating frame 220 , and is coupled to the adjusting bolt 325 to be screwed and supported by the connecting rod 224 . The adjustment bolt 325 is engaged with the adjustment nut 327 and screwed to move the support block 321 in a direction perpendicular to the transfer direction of the wire W.

An insertion groove 322 to which the ball joint 329 is coupled is formed in the center of the support block 321 . In addition, a coupling groove 323 is provided on one surface of the support block 321 facing the abrasive 310 . A support 334 for supporting the elastic body 332 is coupled to the coupling groove 323 .

The ball joint 329 is coupled to one side of the abrasive 310 . The ball joint 329 includes a ball 330 inserted into the insertion groove 322 of the support block 321 . The size of the ball 330 is smaller than the size of the insertion groove 322 , and the ball 330 may move in the insertion groove 322 in a direction perpendicular to the transfer direction of the wire W. The ball joint 329 tilts the abrasive 310 to the support block 321 .

The elastic body 332 is made of an elastically deformable material such as rubber. The elastic body 332 is disposed between the abrasive 310 and the support block 321 to apply an elastic force to the abrasive 310 in a direction spaced apart from the support block 321 . Even if the abrasive 310 is tilted in one direction due to the action of the elastic body 332 , the abrasive 310 may be returned to its original state by the elastic body 332 .

The elastic body 332 is coupled to the support 334 coupled to the support block 321 . The support 334 has a support groove 335 into which the elastic body 332 can be inserted. The elastic body 332 may be detachably coupled to the support body 334 in such a way that it is inserted into the support body groove 335 . The support 334 may be detachably coupled to the support block 321 in such a way that it is inserted into the coupling groove 323 of the support block 321 .

When it is necessary to replace the elastic body 332 , such as when the elastic force of the elastic body 332 decreases due to long-term use, the elastic body 332 may be separated from the support block 321 together with the support body 334 . Therefore, the operation of replacing the elastic body 332 with a new one can be easily made.

In the polishing machine 300 according to the present embodiment, the abrasive 310 may be tilted by being supported by the support unit 320 and may be moved in a direction away from the wire W. Therefore, in a situation where the contact pressure between the wire W and the abrasive 310 may change, such as when the transferred wire W is shaken or the rotation frame 220 is vibrated, the abrasive 310 is tilted or moved to the wire ( W) can be in contact with a uniform pressure. Therefore, the abrasive 310 can polish the surface of the wire W more uniformly and precisely.

In this embodiment, the structure of the support block 321, the ball joint 329, and the elastic body 332 can be variously changed. For example, the elastic body 332 may take various structures such as a rubber block or a spring. And the coupling structure of the support block 321 and the rotating frame 220, the coupling structure of the support block 321 and the ball joint 329, and the coupling structure of the support block 321 and the elastic body 332 are shown. It is not limited and may be variously changed.

The polishing machine 400 shown in FIGS. 8 to 10 includes a fixed frame 210 , a rotating frame 220 rotatably installed on the fixed frame 210 , a plurality of abrasives 410 , and a plurality of abrasives 410 . ) includes a support unit 250 for connecting to the rotating frame 220, and a lubricating member 420 coupled to the abrasive 410. Here, the fixed frame 210, the rotating frame 220, and the support unit 250 are the same as described above.

The abrasive 410 is provided with a flat abrasive portion 411 that can be in contact with the surface of the wire (W). The abrasives 410 are paired to face each other with the transferred wire W therebetween, and a plurality of the abrasives 410 are spaced apart from each other along the transfer direction of the wire W. An abrasive groove 412 is provided on one side of the abrasive part 241 . And a connector 413 connected to the abrasive groove 412 is formed in the abrasive 410 . The connector 413 extends from the opposite side of the abrasive part 241 to the abrasive groove 412 among both surfaces of the abrasive 410 .

The lubricating member 420 is coupled to the abrasive part 411 so as to be in contact with the surface of the wire W and apply the lubricant to the surface of the wire W. The lubricating member 420 may have a structure in which the lubricating material is solidified in the form of a block. The lubricating member 420 can prevent fusion between the wire W and the abrasive 410 by applying a lubricant to the surface of the wire W while the abrasive 410 is grinding the surface of the wire W, It prevents excessive polishing of the wire W, so that it can be polished more precisely and uniformly on the surface of the wire W. In addition, the lubricating member 420 prevents excessive wear of the abrasive 410 by applying a lubricant to the surface of the wire W, and lowers the frictional heat caused by friction between the wire W and the abrasive 410. .

The lubricating member 420 may be detachably coupled to the abrasive 410 through the support frame 430 . The support frame body 430 has a support frame body groove 431 into which the lubricating member 420 is inserted. The lubricating member 420 may be detachably coupled to the support frame body 430 in such a way that it is inserted into the support frame body groove 431 . The support frame 430 may be inserted into the abrasive groove 412 and fixed to the abrasive 410 by a fixture 440 . The fixture 440 includes a fixing bolt 441 inserted into the connector 413 of the abrasive 410 through a through hole 432 formed in the support frame 430, and a fixing nut engaged with the fixing bolt 441 ( 443) may be included.

When the lubricating member 420 is worn, the user may separate the support frame body 430 from the abrasive 410 and replace the lubricating member 420 with a new one.

Although it is shown in the drawing that a pair of lubricating members 420 are spaced apart from each other along the transport direction of the wire W on the abrasive part 411, the number of lubricating members 420 coupled to the abrasive part 411 is It can be variously changed. In addition, the shape or position of the lubricating member 420 can be variously changed.

In addition, various methods other than the method of using the support frame body 430 as shown in the figure may be used as a method of coupling the lubricating member 420 and the abrasive part 411 .

In the foregoing, the present invention has been shown and described in connection with preferred embodiments for illustrating the principles of the present invention, but the present invention is not limited to the construction and operation as shown and described as such. Rather, it will be apparent to those skilled in the art that many changes and modifications can be made to the present invention without departing from the spirit and scope of the appended claims.

100: wire rod drawing device 110: wire rod supply unit
120: drawing unit 121: housing
125: capstan 127: capstan actuator
130: die 133: die holder
140: winding unit 150: guide roller
200, 300, 400: grinder 210: fixed frame
220: rotating frame 221: rotating block
224: connecting rod 227: driving unit
240, 310, 410: abrasive 250, 320: support unit
321: support block 329: ball joint
332: elastic body 334: support body
420: lubrication member 430: support frame body

Claims (10)

A polishing machine for wire drawing for polishing the surface of a wire that is supplied to a wire drawing unit that reduces the thickness of the wire by using a die through which the wire can pass,
fixed frame;
A pair of rotation blocks having a hole for the rotation block through which the wire rod can pass, and a connecting rod connecting the pair of rotation blocks in a spaced apart state from each other, the wire rod passing between the pair of rotation blocks a rotating frame installed on the fixed frame to rotate about a central axis of rotation parallel to the transport direction;
a power transmission unit providing a rotational force to the rotating frame; and
and an abrasive coupled to the connecting rod so as to be in contact with the surface of the wire passing between the pair of rotating blocks and to grind the surface of the wire, and the abrasive to be placed parallel to the conveying direction of the wire. ,
Including; a support unit coupled to the connecting rod to support the abrasive;
The support unit is
a support block coupled to the connecting rod and having an insertion groove formed in a portion facing the abrasive;
a ball joint coupled to the abrasive and having a ball inserted into the insertion groove to tilt the abrasive to the support block;
and an elastic body disposed so as to be elastically deformable between the abrasive and the support block so as to apply an elastic force to the abrasive in a direction spaced apart from the support block.
The method of claim 1,
The polishing machine for wire drawing, characterized in that the abrasive is arranged in pairs so as to face each other with the wire passing between the pair of rotating blocks interposed therebetween.
delete delete delete The method of claim 1,
The insertion groove is made of a size larger than the ball,
The ball is a grinding machine for wire drawing, characterized in that it is movable in the insertion groove so that the separation distance from the connecting rod can be changed.
The method of claim 1,
The elastic body is a grinding machine for wire drawing, characterized in that it is detachably coupled to a support that is detachably coupled to the support block.
The method of claim 1,
An abrasive groove is provided on one side of the polishing part,
and a lubricating member coupled to the abrasive groove so as to be in contact with the surface of the wire passing between the pair of rotating blocks to apply the lubricant to the surface of the wire.
9. The method of claim 8,
and a support frame body detachably coupled to the abrasive groove and having a support frame groove to which the lubricating member is detachably coupled.
delete

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