A processing device for ultra-fine steel wire

Abstract

The present application relates to metal wire drawing technical field, specifically to a kind of processing equipment of ultrafine steel wire, including frame and wire drawing device;Frame is rotationally installed with the main winding wheel and vice winding wheel of axis horizontal and parallel parallel distribution;Wire drawing device is set between main winding wheel and vice winding wheel, including mounting bracket and two wire drawing modules respectively set on the upper and lower sides of mounting bracket, each wire drawing module includes multiple wire drawing dies spaced distribution along the main winding wheel axial direction;Wire drawing die center is provided with the center hole for steel wire to pass through and is tapered, and steel wire is reciprocatingly wound between main winding wheel and vice winding wheel, and sequentially passes through wire drawing die located on the upper and lower sides of mounting bracket, so that main winding wheel and vice winding wheel share the tension of steel wire;Spiral groove is opened outside wire drawing die and is communicated with center hole, so that steel wire enters center hole from spiral groove when tensioning, reduce threading difficulty, improve threading efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal wire drawing, in particular to a processing equipment for ultra-fine steel wire. BACKGROUND

[0002] The processing of ultra-fine steel wire is a process with high precision and high technical requirements, which needs to go through a series of drawing, heat treatment and surface treatment processes to obtain the required specifications and performance. Among them, the drawing process is usually divided into several stages, and different aperture dies are used in each stage to reduce the diameter of the steel wire. Through cold drawing, the strength of the steel wire is improved, and the precision of the size is maintained. When the steel wire passes through the drawing die, due to the small aperture of the drawing die, the steel wire is difficult to pass directly, and needs to be thinned at the end of the steel wire and manually pulled after passing through the drawing die at the end to make it pass through the drawing die with sufficient allowance, so as to be wound on the reel and then pass through the drawing die of the next specification. This perforation process is complex and laborious, which affects the installation efficiency of the steel wire. SUMMARY

[0003] The present application provides a processing equipment for ultra-fine steel wire to solve the problem of laborious threading of the existing wire drawing equipment.

[0004] The processing equipment for ultra-fine steel wire of the present application adopts the following technical scheme:

[0005] A processing equipment for ultra-fine steel wire, comprising a rack and a wire drawing device; the main reel and the auxiliary reel are rotationally installed on the rack, and the axes of the main reel and the auxiliary reel are horizontal and parallel; the main reel and the auxiliary reel are both provided with annular grooves which are distributed along the axial direction of the reel and have diameters increasing in sequence; the wire drawing device is arranged between the main reel and the auxiliary reel, and comprises a mounting frame and two wire drawing modules arranged on the upper and lower sides of the mounting frame respectively; each wire drawing module comprises a plurality of wire drawing dies which are spaced apart along the axial direction of the main reel; the mounting frame restricts the rotation of the wire drawing dies; the center of each wire drawing die is provided with a center hole for the steel wire to pass through, and the center hole is tapered with the diameter of the inlet side being larger than that of the outlet side; the steel wire is wound on the main reel after passing through the wire drawing dies arranged on the upper side of the mounting frame and then passing through the wire drawing dies arranged on the lower side of the mounting frame; the steel wire is wound on the next annular groove with a larger diameter on the auxiliary reel; and on the annular path of the steel wire, the position of the steel wire passing through the wire drawing dies protrudes from the annular grooves of the main reel and the auxiliary reel on both sides; the outer wall of the wire drawing die is provided with a spiral groove which is spirally arranged around the center hole and has two ends penetrating through the two end faces of the wire drawing die respectively; the spiral groove is in communication with the center hole, and the width of the spiral groove decreases in sequence from the outer wall of the wire drawing die to the center hole, and the size of the end close to the center hole is consistent with that of the center hole.

[0006] Optionally, the positions of the plurality of drawing dies on the upper side of the mounting frame are sequentially raised along the direction in which the diameters of the annular grooves of the main winding wheel or the auxiliary winding wheel sequentially increase, and the positions of the plurality of drawing dies on the lower side of the mounting frame are sequentially lowered.

[0007] Optionally, the mounting frame is provided with mounting grooves for mounting the drawing dies, and a guide groove for the steel wire to pass through and perpendicular to the mounting grooves is arranged at a position corresponding to each drawing die; the mounting grooves extend along the axial direction of the main winding wheel and are located in the middle of the plurality of guide grooves; the steel wire before entering the drawing die and after passing out of the drawing die passes through the guide grooves, the guide grooves are coaxial with the center holes of the corresponding drawing dies, and the guide grooves limit the movement of the steel wire in the axial direction of the main winding wheel or the auxiliary winding wheel.

[0008] Optionally, the center hole of the drawing die is arc-shaped, and the middle part of the center hole of the drawing die on the upper side of the mounting frame is higher than the two ends, and the middle part of the center hole of the drawing die on the lower side of the mounting frame is lower than the two ends.

[0009] Optionally, at least one rotation-stopping groove is further arranged on the outer peripheral wall of the drawing die; a set of limiting rollers is arranged in the mounting groove at a position corresponding to each drawing die, and the limiting rollers cooperate with the rotation-stopping grooves to limit the rotation of the drawing die.

[0010] Optionally, the center hole of the drawing die is arc-shaped, and the middle part of the center hole of the drawing die on the upper side of the mounting frame is higher than the two ends, and the middle part of the center hole of the drawing die on the lower side of the mounting frame is lower than the two ends.

[0011] Optionally, the angle of the spiral groove in the circumferential direction of the center hole is an acute angle.

[0012] Optionally, the rack is further provided with a pay-off wheel and a take-up wheel, the pay-off wheel is used for conveying the steel wire to the auxiliary winding wheel, and the take-up wheel is used for winding the stretched steel wire.

[0013] Optionally, the take-up wheel is parallel to the axial line of the main winding wheel; the rack is further provided with at least one guide wheel, the at least one guide wheel is located on the wire inlet side of the take-up wheel, is parallel to the axial line of the take-up wheel, and can reciprocate along the axial direction of the guide wheel, and is used for guiding the stretched steel wire to be circularly wound on the take-up wheel.

[0014] Optionally, the rack is further provided with a winding wheel, the axial line of the winding wheel is vertical and the winding wheel is rotatably mounted on the rack, and the steel wire extending out of the annular groove with the largest diameter on the main winding wheel is wound on the winding wheel for one turn and then wound on the take-up wheel through the guide wheel.

[0015] The beneficial effects of the present application are: the processing equipment for the ultra-fine steel wire of the present application is provided with a spiral groove communicated with the center hole outside the drawing die, so that the steel wire enters the center hole from the spiral groove when tensioned, the threading difficulty is reduced, and the threading efficiency is improved.

[0016] Further, by setting a drawing die set on the lower side of the mounting frame, the steel wire is reciprocally wound between the main winding wheel and the auxiliary winding wheel, and the main winding wheel and the auxiliary winding wheel share the tension of the steel wire, improving the stability of the device as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present application, a superfine steel wire processing device;

[0019] Figure 2 Fig. 2 is a front view of the overall structure of an embodiment of the present application, a superfine steel wire processing device;

[0020] Figure 3 Fig. 3 is a sectional view of a drawing device in an embodiment of the present application, a superfine steel wire processing device;

[0021] Figure 4 Fig. 4 is a structural schematic diagram of a drawing die in an embodiment of the present application, a superfine steel wire processing device;

[0022] Figure 5 Fig. 5 is a side view of a drawing die in an embodiment of the present application, a superfine steel wire processing device;

[0023] Figure 6 Fig. 6 is a sectional view of A-A in Fig. 5. Figure 5

[0024] In the figure: 100, frame; 110, main winding wheel; 120, auxiliary winding wheel; 130, cooling device; 140, pay-off wheel; 150, take-up wheel; 160, guide wheel; 170, winding wheel; 200, drawing device; 210, mounting frame; 220, drawing die; 221, center hole; 222, spiral groove; 223, limiting roller; 224, rotation-stopping groove; 230, mounting groove; 240, guide groove; 300, steel wire. DETAILED DESCRIPTION

[0025] ​Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.

[0026] An embodiment of the superfine steel wire processing equipment of the present application, as shown in Figures 1 to 6 the drawing, comprises a frame 100 and a wire drawing device 200.

[0027] The frame 100 is rotatably provided with a main winding wheel 110 and a secondary winding wheel 120, which are horizontally and parallelly arranged in parallel. The main winding wheel 110 and the secondary winding wheel 120 are both provided with annular grooves, which are arranged in sequence along the axial direction and have diameters increasing in sequence. The main winding wheel 110 and the secondary winding wheel 120 are driven to rotate by separate motors, or are driven to synchronously rotate by a same motor through a worm and worm gear structure or a gear and rack structure.

[0028] The wire drawing device 200 is arranged between the main winding wheel 110 and the secondary winding wheel 120, and comprises a mounting frame 210 and two wire drawing modules arranged on the upper and lower sides of the mounting frame 210, respectively. Each wire drawing module comprises a plurality of wire drawing dies 220, which are arranged in sequence along the axial direction of the main winding wheel 110. The mounting frame 210 restricts the rotation of the wire drawing dies 220. The wire drawing dies 220 are provided with a center hole 221, which is arranged in the center of the wire drawing dies 220 and is tapered, and the diameter of the center hole 221 at the wire inlet side is larger than that at the wire outlet side. The steel wire 300 is wound on the main winding wheel 110 after passing through the wire drawing dies 220 arranged on the upper side of the mounting frame 210 and being wound out of the secondary winding wheel 120, and is then wound on the next annular groove with a larger diameter of the secondary winding wheel 120 after passing through the wire drawing dies 220 arranged on the lower side of the mounting frame 210. In the annular path of the steel wire 300, the position of the steel wire 300 passing through the wire drawing dies 220 protrudes from the annular grooves of the corresponding main winding wheel 110 and secondary winding wheel 120 on both sides, i.e., the center hole 221 of the wire drawing dies 220 arranged on the upper side of the mounting frame 210 is higher than the annular grooves of the corresponding main winding wheel 110 and secondary winding wheel 120 on both sides, and the center hole 221 of the wire drawing dies 220 arranged on the lower side of the mounting frame 210 is lower than the annular grooves of the corresponding main winding wheel 110 and secondary winding wheel 120 on both sides. The outer peripheral wall of the wire drawing dies 220 is provided with a spiral groove 222, which is spirally arranged around the center hole 221 and penetrates through the two end faces of the wire drawing dies 220 at both ends, and the spiral groove 222 is in communication with the center hole 221. From the outer peripheral wall of the wire drawing dies 220 to the center hole 221, the width of the spiral groove 222 decreases in sequence, and the width of the spiral groove 222 at the end close to the center hole 221 is consistent with the size of the center hole 221.

[0029] Before the drawing, the steel wire 300 needs to be wound on the main reel 110 and the auxiliary reel 120 reciprocally, and pass through the drawing dies 220 in sequence between the main reel 110 and the auxiliary reel 120. When the steel wire 300 passes through the drawing dies 220, the steel wire 300 can pass from the spiral groove 222 of the drawing die 220, because the end of the spiral groove 222 communicating with the outer peripheral wall of the drawing die 220 is wide, the steel wire 300 is easy to enter, after the end of the steel wire 300 extending from the spiral groove 222 is wound on the main reel 110 or the auxiliary reel 120, the main reel 110 or the auxiliary reel 120 is rotated, and because the position of the steel wire 300 passing through the drawing die 220 on the annular path of the steel wire 300 is protruded from the annular grooves of the main reel 110 and the auxiliary reel 120 corresponding to the two sides thereof, the steel wire 300 is tensioned and pulled to the end of the spiral groove 222 close to the center hole 221 at the same time, until the steel wire 300 is pulled into the center hole 221, the main reel 110 or the auxiliary reel 120 continues to rotate, so that the steel wire 300 is drawn by the drawing die 220. When passing through the next drawing die 220, a section of the steel wire 300 drawn by the previous drawing die 220 is loaded into the spiral groove 222 of the next drawing die 220, and the above operation is repeated to make the steel wire 300 cooperate with the center hole 221 of the next drawing die 220. Because the spiral groove 222 is spirally arranged around the center hole 221, the end communicating with the center hole 221 is a spiral line around the center hole 221, and the communication position of the center hole 221 with the spiral groove 222 in the circumferential direction is not along the axial direction of the center hole 221, when the steel wire 300 passes through the center hole 221, the stretching of the steel wire 300 is not affected by the communication position of the center hole 221 with the spiral groove 222. The steel wire 300 is wound reciprocally between the auxiliary reel 120 and the main reel 110, the drawing dies 220 located on the upper side of the mounting frame 210 are subjected to the tension from the auxiliary reel 120 to the main reel 110, the drawing dies 220 located on the lower side of the mounting frame 210 are subjected to the tension from the main reel 110 to the auxiliary reel 120, the mounting frame 210 is balanced in force, at the same time, the tension borne by the main reel 110 and the auxiliary reel 120 is also balanced, that is, the tension of the steel wire 300 being stretched is distributed to the main reel 110 and the auxiliary reel 120, compared with the prior art that the main reel 110 bears unidirectional tension when stretching the steel wire 300, the stability of the whole drawing device 200 is improved.

[0030] The spiral groove 222 communicating with the center hole 221 is arranged on the drawing die 220, so that the steel wire 300 enters the center hole 221 from the spiral groove 222 when tensioned, and the threading difficulty is reduced.

[0031] Further, by arranging one drawing die set on each of the upper and lower sides of the mounting frame 210, the steel wire 300 is wound reciprocally between the main reel 110 and the auxiliary reel 120, and the main reel 110 and the auxiliary reel 120 share the tension of the steel wire 300, so that the stability of the whole device is improved.

[0032] In the embodiment, the positions of the plurality of drawing dies 220 on the upper side of the mounting frame 210 are sequentially raised, and the positions of the plurality of drawing dies 220 on the lower side of the mounting frame 210 are sequentially lowered, in the direction in which the diameters of the annular grooves on the main winding wheel 110 or the auxiliary winding wheel 120 sequentially increase, so as to adapt to the annular grooves with gradually increasing diameters.

[0033] In the embodiment, the mounting frame 210 is provided with mounting grooves 230 for mounting the drawing dies 220, and a guide groove 240 for the steel wire 300 to pass through and perpendicular to the mounting groove 230 is arranged at a position corresponding to each drawing die 220; the plurality of guide grooves 240 are sequentially and spacedly arranged along the axial direction of the main winding wheel 110, the mounting groove 230 extends along the axial direction of the main winding wheel 110 and is located in the middle of the plurality of guide grooves 240, and is used for limiting the movement of the drawing die 220 along the extension direction of the steel wire 300. The steel wire 300 before entering the drawing die 220 and after passing out of the drawing die 220 passes through the guide groove 240, the guide groove 240 is coaxial with the center hole 221 of the corresponding drawing die 220, and limits the movement of the steel wire 300 in the axial direction of the main winding wheel 110 or the auxiliary winding wheel 120.

[0034] In the embodiment, the center hole 221 of the drawing die 220 is arc-shaped, and the middle part of the center hole 221 of the drawing die 220 on the upper side of the mounting frame 210 is higher than the two ends, and the middle part of the center hole 221 of the drawing die 220 on the lower side of the mounting frame 210 is lower than the two ends, so as to keep the steel wire 300 in the center of the drawing die 220 when the steel wire 300 is tensioned.

[0035] In the embodiment, at least one rotation-stopping groove 224 is further arranged on the outer peripheral wall of the drawing die 220; a set of limiting rollers 223 is arranged in the mounting groove 230 at a position corresponding to each drawing die 220, and the limiting roller 223 cooperates with the rotation-stopping groove 224 to limit the rotation of the drawing die 220.

[0036] In the embodiment, the center hole 221 of the drawing die 220 is provided with a tapered guide surface with a large end outward at both ends.

[0037] In the embodiment, the angle of the spiral groove 222 in the circumferential direction of the center hole 221 is an acute angle.

[0038] In the embodiment, the rack 100 is further provided with a cooling device 130, and the cooling device 130 is used for cooling the steel wire 300 in each annular groove on the main winding wheel 110. The cooling device 130 comprises a liquid supply pump and a cooling pipe, the cooling pipe is parallel to the axis of the main winding wheel 110 and is located above the main winding wheel 110, is used for being in communication with an externally connected cooling liquid tank, the cooling pipe is provided with a liquid outlet hole corresponding to each annular groove, and the liquid supply pump pumps cooling liquid into the cooling pipe, so that the cooling liquid cools the steel wire 300 at each annular groove.

[0039] In the embodiment, the rack 100 is further provided with a pay-off wheel 140 and a take-up wheel 150, the pay-off wheel 140 is used to deliver the steel wire 300 to the secondary winding wheel 120, and the take-up wheel 150 is used to wind the stretched steel wire 300.

[0040] In the embodiment, the take-up wheel 150 is parallel to the axis of the primary winding wheel 110; the rack 100 is further provided with at least one guide wheel 160, the at least one guide wheel 160 is located on the wire inlet side of the take-up wheel 150 and parallel to the axis of the take-up wheel 150, and can move reciprocatingly along the axis of the guide wheel 160, and is used to guide the stretched steel wire 300 to circulate and reciprocate to be wound on the take-up wheel 150. Wherein, a lead screw is rotatably installed on the rack 100, and a base is slidingly installed, the base is threadedly matched with the lead screw, the guide wheel 160 is installed on the base, and the reciprocating rotation of the lead screw drives the base to reciprocate, and further drives the guide wheel 160 to reciprocate.

[0041] In the embodiment, the rack 100 is further provided with a winding wheel 170, the axis of the winding wheel 170 is vertical and rotatably installed on the rack 100, and the steel wire 300 extending out of the largest diameter annular groove of the primary winding wheel 110 is wound on the winding wheel 170 for one circle and then wound on the take-up wheel 150 through the guide wheel 160.

[0042] In the embodiment, the mounting rack 210 is of split structure and the components are detachably connected.

[0043] The processing equipment of the superfine steel wire of the present application is used to pull out the steel wire 300 from the pay-off reel 140, and then wind or pass through the annular groove on the auxiliary reel 120, the drawing die 220 on the upper side of the mounting frame 210, the annular groove on the main reel 110, the drawing die 220 on the lower side of the mounting frame 210, and then wind the next larger-diameter annular groove on the auxiliary reel 120, and then wind the next larger-diameter annular groove on the main reel 110. When the steel wire 300 passes through the drawing die 220, the steel wire 300 can pass through the spiral groove 222 of the drawing die 220. Since the end of the spiral groove 222 in communication with the outer wall of the drawing die 220 is wide, the steel wire 300 is easy to enter. After the end of the steel wire 300 extending from the spiral groove 222 is wound on the main reel 110 or the auxiliary reel 120, the main reel 110 or the auxiliary reel 120 is rotated. Since the position of the steel wire 300 passing through the drawing die 220 on the annular path of the steel wire 300 is protruded from the annular grooves of the main reel 110 and the auxiliary reel 120 on both sides, the steel wire 300 is tensioned and pulled to the end of the spiral groove 222 close to the center hole 221 at the same time, until the steel wire 300 is pulled into the center hole 221. The main reel 110 or the auxiliary reel 120 continues to rotate, so that the steel wire 300 is drawn by the drawing die 220. When passing through the next drawing die 220, a section of the steel wire 300 drawn by the previous drawing die 220 is loaded into the spiral groove 222 of the next drawing die 220, and the above operation is repeated to make the steel wire 300 cooperate with the center hole 221 of the next drawing die 220. Finally, the steel wire 300 is pulled out from the largest-diameter annular groove of the main reel 110, wound on the winding reel 170 for one turn, guided by the guide wheel 160, and finally wound on the take-up reel 150. When drawing the steel wire, the main reel 110 and the auxiliary reel 120 rotate in the same direction, and at the same time, the take-up reel 150 rotates, and the guide wheel 160 reciprocates to wind the drawn steel wire 300 on the take-up reel 150.

[0044] The above merely describes the preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A processing device for ultra-fine steel wire, characterized in that: Includes the frame and wire drawing device; The frame is rotatably mounted with a main winding reel and an auxiliary winding reel arranged in parallel with horizontal axes; both the main winding reel and the auxiliary winding reel have annular grooves that are distributed sequentially along their axial direction and whose diameters increase sequentially. The wire drawing device is located between the main winding reel and the auxiliary winding reel, and includes a mounting frame and two wire drawing dies respectively located on the upper and lower sides of the mounting frame. Each wire drawing die includes multiple wire drawing dies spaced apart along the axial direction of the main winding reel. The mounting frame restricts the rotation of the wire drawing dies. A tapered central hole is formed in the center of each wire drawing die for the wire to pass through, with the diameter of the inlet side of the central hole being larger than the diameter of the outlet side. After the wire exits from the auxiliary winding reel, it passes through the wire drawing die located on the upper side of the mounting frame, then winds around the main winding reel, and finally exits from the main winding reel and passes through the wire drawing die located on the lower side of the mounting frame. The wire drawing die is wound around the next larger diameter annular groove on the auxiliary winding wheel; and on the annular path of the wire winding, the position where the wire passes through the wire drawing die protrudes from the annular grooves of the corresponding main winding wheel and auxiliary winding wheel on both sides; a spiral groove is opened on the outer peripheral wall of the wire drawing die, the spiral groove is spirally arranged around the central hole and its two ends respectively penetrate the two end faces of the wire drawing die, the spiral groove is connected to the central hole, and from the outer peripheral wall of the wire drawing die to the central hole, the width of the spiral groove decreases successively, and the end closer to the central hole has the same size as the central hole.

2. The processing equipment for ultrafine steel wire according to claim 1, characterized in that: Along the direction where the diameter of the annular groove on the main winding wheel or the auxiliary winding wheel increases sequentially, the positions of the multiple wire drawing dies located on the upper side of the mounting frame are raised sequentially, while the positions of the multiple wire drawing dies located on the lower side of the mounting frame are lowered sequentially.

3. The processing equipment for ultrafine steel wire according to claim 1, characterized in that: The mounting frame has mounting slots for mounting wire drawing dies, and each wire drawing die has a guide slot that allows the wire to pass through and is perpendicular to the mounting slot. The mounting slots extend along the axial direction of the main winding wheel and are located in the middle of the multiple guide slots. The wires pass through the guide slots before entering the wire drawing die and after exiting the wire drawing die. The guide slots are coaxial with the center hole of the corresponding wire drawing die and restrict the axial movement of the wires on the main winding wheel or the auxiliary winding wheel.

4. The processing equipment for ultrafine steel wire according to claim 3, characterized in that: The center hole of the wire drawing die is arc-shaped, and the center hole of the wire drawing die located on the upper side of the mounting bracket is higher than the two ends, while the center hole of the wire drawing die located on the lower side of the mounting bracket is lower than the two ends.

5. The processing equipment for ultrafine steel wire according to claim 3, characterized in that: At least one anti-rotation groove is also provided on the outer peripheral wall of the wire drawing die; a set of limiting rollers is provided in the mounting groove for each wire drawing die, and the limiting rollers cooperate with the anti-rotation groove to restrict the rotation of the wire drawing die.

6. The processing equipment for ultrafine steel wire according to claim 1, characterized in that: The drawing die has tapered guide surfaces with the larger end facing outwards at both ends of the central hole.

7. The processing equipment for ultrafine steel wire according to claim 1, characterized in that: The angle of the spiral groove in the circumferential direction of the central hole is an acute angle.

8. The processing equipment for ultrafine steel wire according to claim 1, characterized in that: The frame is also equipped with a wire feeding reel and a wire take-up reel. The wire feeding reel is used to feed the steel wire to the auxiliary winding reel, and the wire take-up reel is used to wind up the stretched steel wire.

9. The processing equipment for ultrafine steel wire according to claim 8, characterized in that: The take-up reel is parallel to the axis of the main winding reel; at least one guide wheel is also provided on the frame. The guide wheel is located on the wire inlet side of the take-up reel and is parallel to the axis of the take-up reel. It can reciprocate along its own axis to guide the stretched steel wire to be wound around the take-up reel repeatedly.

10. The processing equipment for ultrafine steel wire according to claim 9, characterized in that: The frame is also equipped with a winding wheel. The winding wheel is vertically mounted on the frame and rotates. The steel wire extending from the largest annular groove on the main winding wheel is wound around the winding wheel once and then wound onto the take-up wheel via the guide wheel.

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