Wire drawing surface cleanliness improving device and improving method

Abstract

The present application relates to the technical field of wire polishing, and particularly relates to a wire drawing surface cleanliness improvement device and an improvement method, wherein the wire drawing surface cleanliness improvement device comprises a polishing assembly, the polishing assembly comprises a plurality of rotating shafts and a plurality of abrasive belts, and the rotating shafts are used for stably supporting the abrasive belts; the width of the abrasive belt is relatively narrow, each abrasive belt is wound on at least two rotating shafts, and each abrasive belt has a preset width; in the extension direction of the rotating shaft, the bending directions of two adjacent abrasive belts are opposite when the two adjacent abrasive belts contact the wire, and the two adjacent abrasive belts have a first preset gap. When the wire is polished, the narrow width of the abrasive belt can reduce the distance between the stress points of the wire caused by the adjacent abrasive belts, make the stress distribution of the outer surface of the wire more uniform, and reduce the risk of wire bending caused by unbalanced stress; at the same time, the reduction of the bending degree of the wire can avoid the local concentrated friction of the bending part on the abrasive belt, and slow down the wear speed of the abrasive belt.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wire polishing, in particular to a wire drawing surface cleanliness improvement device and method. BACKGROUND

[0002] The wire polishing machine is a device for improving the surface quality of metal wires, which can remove the defects such as oxide layer, scratch and burr on the surface of the wire, so that the surface of the wire reaches a smooth and bright effect, and meets the requirements of subsequent processing or product use for surface precision, and is widely used in the industries of electric wire and cable, hardware products, medical devices, etc. When in use, first, according to the material and surface defect degree of the wire, a sand belt with a suitable particle size is selected, the power of the device is turned on, and one end of the wire is inserted into the feeding port of the device; after the wire enters the polishing cavity smoothly, the sand belt is driven by the motor to rotate at high speed, and contacts and polishes the surface of the wire; the polished wire is sent out through the discharge port.

[0003] However, when polishing the wire, if a wider sand belt is used and the bending directions of the adjacent two sand belts are opposite when contacting the wire, the distance between the stress points on the wire caused by the adjacent sand belts is too large, which causes the stress distribution on the outer surface of the wire to be uneven, and the wire is prone to bending in the local area due to concentrated stress. At the same time, the bending part of the wire will cause local concentrated friction on the sand belt, which will accelerate the wear speed of the sand belt. This not only causes uneven polishing of the surface of the wire, resulting in local over-polishing or missing defects, which seriously affects the product quality, but also requires frequent replacement of the sand belt due to rapid wear, which increases the cost of consumables and reduces the overall processing efficiency. SUMMARY

[0004] Therefore, it is necessary to provide a wire drawing surface cleanliness improvement device in view of the problem that the distance between the stress points on the wire caused by the wider sand belt of the existing wire polishing machine is too large, which causes the wire to be prone to bending.

[0005] The above-mentioned purpose is achieved by the following technical solutions:

[0006] A wire drawing surface cleanliness improvement device, comprising:

[0007] A support.

[0008] A polishing assembly, the polishing assembly comprises a plurality of rotating shafts and a plurality of sand belts, each rotating shaft extends along the running direction of the wire and is rotatably connected to the support, and the plurality of rotating shafts are used to support the sand belts; each sand belt is wound on at least two rotating shafts, and each sand belt has a preset width size; in the extension direction of the rotating shaft, the bending directions of the adjacent two sand belts are opposite when contacting the wire, and the adjacent two sand belts have a first preset gap therebetween.

[0009] A driving assembly, comprising a mounting disc and a power source, the mounting disc is rotationally connected to the support, each of the rotating shafts is rotationally connected to the mounting disc; the power source is used to drive the mounting disc to rotate around its axis and drive the rotating shafts to rotate around their axes.

[0010] Further, a limiting wheel is fixedly arranged on each of the rotating shafts, a plurality of the abrasive belts are arranged around the limiting wheel, and adjacent abrasive belts are wound around different limiting wheels, the limiting wheel is used to maintain the relative distance between the plurality of abrasive belts on the same rotating shaft.

[0011] Further, the polishing assembly further comprises a fixing frame, the fixing frame is provided with a through hole for the wire to pass through, and the fixing frame is sleeved on the plurality of rotating shafts to limit the relative position of the plurality of rotating shafts.

[0012] Further, the driving assembly further comprises an outer gear ring coaxial with the mounting disc and fixedly connected to the support, a transmission gear is fixedly arranged on each of the rotating shafts, the transmission gear can engage with the outer gear ring, and the rotating shafts are driven to rotate around their axes when the mounting disc rotates.

[0013] Further, the polishing assembly further comprises a plurality of adjusting structures, each of the adjusting structures can automatically adjust the tension of one of the abrasive belts according to the diameter of the wire; during the polishing process of the wire, each of the adjusting structures can also automatically adjust the tension of one of the abrasive belts according to the rotating speed of the mounting disc.

[0014] Further, the adjusting structure comprises a tensioning wheel, the tensioning wheel is slidingly connected to the mounting disc and can move along the radial direction of the mounting disc; when the mounting disc rotates, the tensioning wheel makes the rotating speed of the mounting disc and the tension of the abrasive belt positively correlated.

[0015] Further, the adjusting structure further comprises a pressing wheel, the pressing wheel is connected to the mounting disc, and the outer wall of the pressing wheel can contact the abrasive belt on the outer side of the wire to press the abrasive belt on the outer side of the wire.

[0016] Further, the pressing wheel is slidingly connected to the mounting disc, and the pressing wheel and the tensioning wheel are distributed along the same radial direction of the mounting disc; a first elastic member is connected between the tensioning wheel and the pressing wheel, and the elastic force of the first elastic member always makes the tensioning wheel and the pressing wheel away from each other.

[0017] Further, the adjusting structure further comprises a first locking member and a second locking member, the first locking member is used for locking the relative position of the tensioning wheel and the mounting disc, and the second locking member is used for locking the relative position of the pressing wheel and the mounting disc.

[0018] The application further provides a wire drawing surface cleanliness improvement method, which is applied to the wire drawing surface cleanliness improvement device and comprises the following steps:

[0019] S100, the wire is sequentially threaded through the plurality of abrasive belts, and the bending directions of the adjacent two abrasive belts when contacting the wire are opposite.

[0020] S200, according to the diameter of the wire and the processing requirement, the adjusting structure is used to adjust the tensioning force of the polishing abrasive belt and the pressing force on the wire.

[0021] S300, the power source is started to drive the mounting disc to drive the plurality of rotating shafts to synchronously rotate around the axis of the mounting disc, and to drive each rotating shaft to rotate around its own axis, so that the abrasive belt polishes the wire.

[0022] S400, during the polishing process, the rotational speed of the mounting disc is adjusted by the power source to adjust the polishing intensity of the abrasive belt on the wire according to the polishing effect of the wire and the processing requirement.

[0023] The application has the following beneficial effects:

[0024] The application provides a wire drawing surface cleanliness improvement device and improvement method, wherein the wire drawing surface cleanliness improvement device comprises a polishing assembly and a driving assembly, the polishing assembly comprises a plurality of rotating shafts and a plurality of abrasive belts, and the rotating shafts are used to stably support the abrasive belts; each abrasive belt is wound on at least two rotating shafts, and each abrasive belt has a relatively narrow preset width size; in the extension direction of the rotating shafts, the bending directions of the adjacent two abrasive belts when contacting the wire are opposite, and the adjacent two abrasive belts have a first preset gap therebetween. The driving assembly comprises a mounting disc and a power source, and the plurality of rotating shafts are rotationally connected to the mounting disc; the power source can drive the mounting disc to rotate and can also drive the rotating shafts to rotate around their own axes, so that the plurality of abrasive belts can polish the wire. When the wire is polished, the abrasive belts with the relatively narrow width and the opposite bending directions of the adjacent two abrasive belts can reduce the distance between the stress points of the adjacent abrasive belts on the wire, make the stress distribution on the outer surface of the wire more uniform, reduce the risk that the wire is bent due to unbalanced stress, and make the wire less likely to be bent; meanwhile, the reduction of the bending degree of the wire can avoid that the bending part causes local concentrated friction on the abrasive belt, slow down the wear speed of the abrasive belt, and prolong the service life of the abrasive belt. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 This is a schematic diagram of a device for improving the surface cleanliness of wire drawing according to an embodiment of the present invention;

[0026] Figure 2 for Figure 1 The front view of the structure shown;

[0027] Figure 3 for Figure 1 Side view of the structure shown;

[0028] Figure 4 for Figure 2 A cross-sectional view along the AA direction;

[0029] Figure 5 for Figure 3 Cross-sectional view along the BB direction;

[0030] Figure 6 for Figure 5 A magnified view of a section at point C;

[0031] Figure 7 Exploded view of the grinding component and drive component in a wire drawing surface cleanliness improvement device provided in an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the tensioning wheel in a wire drawing surface cleanliness improvement device provided in an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the pressure roller in a wire drawing surface cleanliness improvement device provided in an embodiment of the present invention.

[0034] in:

[0035] 210. Support frame; 220. Protective housing; 230. Straightening roller;

[0036] 310. Rotating shaft; 311. Limiting wheel; 312. Transmission gear; 320. Sanding belt; 330. Tensioning wheel; 331. First sliding shaft; 332. First locking bolt; 340. Pressure wheel; 341. Second sliding shaft; 342. Second locking bolt; 350. First compression spring; 360. Fixing bracket;

[0037] 410. Mounting plate; 411. First slide groove; 420. External gear ring; 430. Rotating plate; 440. Drive motor. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0039] The serial numbers of components used herein, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequential or technical meaning. The "connection" and "coupling" of the present application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the "over", "above" and "on" of the first feature to the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature to the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0041] Reference will now be made to the drawings Figures 1 to 9 A wire drawing surface cleanliness improvement device is described.

[0042] A wire drawing surface cleanliness improvement device is described.

[0043] The support assembly includes a support 210, a protective shell 220 and a straightening wheel 230. The support 210 is a frame type rigid structure, fixedly installed on the ground or a designated support plane, for providing a relatively stable support foundation for other components. The protective shell 220 is a box structure, fixedly connected to the upper surface of the support 210, with a cavity reserved inside for accommodating the polishing assembly and the driving assembly, for building a working space isolated from the external environment for the polishing assembly and the driving assembly. The straightening wheel 230 is a cylindrical wheel body structure, located at the initial position of the wire entering the device, rotatably connected to the support 210, and used for pre-straightening the wire entering the device to ensure that the wire enters the polishing assembly in a straight line.

[0044] The polishing assembly comprises a plurality of rotating shafts 310 and a plurality of abrasive belts 320. The rotating shaft 310 is a cylindrical rigid shaft body extending along the running direction of the wire, and is rotatably connected to the protective shell 220. The plurality of rotating shafts 310 are used to support the abrasive belts 320. The outer wall of each rotating shaft 310 is coaxially fixedly provided with a limiting wheel 311. The outer wall surface of the limiting wheel 311 is provided with uniformly distributed interval grooves. The depth and width of the interval grooves are adapted to the thickness and width of the abrasive belt 320. The limiting wheel 311 is used to position the plurality of abrasive belts 320 through the interval grooves, so as to ensure that the plurality of abrasive belts 320 on the same rotating shaft 310 maintain a fixed relative distance, and further ensure the relative position of the adjacent abrasive belts 320 in the axial direction. The abrasive belt 320 is a belt-shaped flexible polishing component. The preset width dimension is set to be a narrow specification. Each abrasive belt 320 is wound on at least two rotating shafts 310 and embedded in the interval grooves of the limiting wheel 311 on the fixed rotating shaft 310. In the extension direction of the rotating shaft 310, the bending directions of the adjacent two abrasive belts 320 when contacting the wire are opposite, and the polishing surface of each abrasive belt 320 faces the wire and covers the full circumferential direction of the wire. The abrasive belt 320 is used to polish the surface of the passing wire. At the same time, the first preset gap is provided between the adjacent two abrasive belts 320 to prevent friction or interference between the adjacent two abrasive belts 320 during movement with the rotating shaft 310.

[0045] The driving assembly comprises a mounting disc 410, an outer tooth ring 420, a rotating plate 430 and a power source. The mounting disc 410 is a circular plate structure, which is rotatably connected to one end of the side wall of the protective shell 220. The mounting disc 410 is provided with a through hole for the wire to pass through and a plurality of first mounting holes matched with the rotating shafts 310. One end of the rotating shaft 310 penetrates through the first mounting hole and is rotatably connected to the mounting disc 410. The mounting disc 410 is used to drive the plurality of rotating shafts 310 to rotate synchronously. The first mounting plate and the second mounting plate are fixedly arranged in the protective shell 220. The first mounting plate and the second mounting plate are parallel to each other and perpendicular to the running direction of the wire. The first mounting plate is used to provide a mounting basis for the outer tooth ring 420, and the second mounting plate is used to provide a mounting basis for the rotating plate 430. The outer tooth ring 420 is an annular gear structure, which is coaxially arranged with the mounting disc 410 and fixedly connected to the first mounting plate. The middle outer wall of each rotating shaft 310 is fixedly provided with a transmission gear 312. The tooth surface of the outer tooth ring 420 is engaged with the tooth surface of the transmission gear 312. The outer tooth ring 420 is used to rotate around its own axis when the rotating shaft 310 rotates with the mounting disc 410. The rotating plate 430 is coaxially arranged with the mounting disc 410 and rotatably connected to the second mounting plate. The rotating plate 430 is provided with a through hole for the wire to pass through and a plurality of second mounting holes matched with the rotating shafts 310. The other end of the rotating shaft 310 penetrates through the second mounting hole and is rotatably connected to the rotating plate 430. The power source comprises a driving motor 440, which is fixedly connected to the inner wall of the protective shell 220. A transmission belt is wound between the output end of the driving motor 440 and the outer wall of the rotating plate 430. The driving motor 440 is used to provide rotating power for the rotating plate 430.

[0046] In the use process of the device, the wire enters the device from the input end of the device. The wire first passes through the straightening treatment of the straightening wheel 230 and successively passes through a plurality of sand belts 320, so that the bending directions of adjacent two sand belts 320 are opposite when the sand belts 320 contact the wire. The driving motor 440 is started. The output end of the driving motor 440 drives the rotating plate 430 to rotate around its own axis through the transmission belt, so that the rotating shaft 310 revolves around the axis of the mounting disc 410. At the same time, the fixed tooth surface of the outer tooth ring 420 forces the transmission gear 312 on the rotating shaft 310 to drive the rotating shaft 310 to revolve around its own axis. The revolution and rotation of the rotating shaft 310 drive the sand belt 320 to rotate at high speed, and the wire surface is polished in full circumferential and uniform manner. The wire after polishing is sent out from the output end of the device.

[0047] Thus, the wire is polished by the narrow-width abrasive belt 320, the bending directions of the adjacent two abrasive belts 320 are opposite when contacting the wire, the relative positions between the plurality of abrasive belts 320 are ensured by the rotating shaft 310 and the limiting wheel 311, a fixed support is formed, the stress point spacing on the wire acted on by the adjacent abrasive belts 320 is reduced, the stress distribution on the outer surface of the wire is uniform, the possibility of bending of the wire due to excessive local stress is reduced, and the wire is less likely to bend; meanwhile, the reduction of the bending degree of the wire can avoid local concentrated friction on the abrasive belt 320 caused by the bending part, further slow down the wear speed of the abrasive belt 320, reduce the replacement frequency of the abrasive belt 320, and ensure the stability of the polishing quality of the wire.

[0048] In one of the embodiments, the polishing assembly further comprises a plurality of adjusting structures, each adjusting structure being capable of automatically adjusting the tensioning degree of one abrasive belt 320 according to the diameter of the wire; during the polishing process of the wire, each adjusting structure is further capable of automatically adjusting the tensioning degree of one abrasive belt 320 according to the rotating speed of the mounting disc 410.

[0049] Specifically, the tensioning degree of the abrasive belt 320 is positively correlated with the polishing degree. The higher the tensioning degree of the abrasive belt 320, the greater the contact pressure on the surface of the wire, the stronger the friction force, and the greater the polishing degree; on the contrary, the lower the tensioning degree of the abrasive belt 320, the smaller the contact pressure, the weaker the friction force, and the smaller the polishing degree.

[0050] For the convenience of description, the rotation of the rotating shaft 310 around the axis of the mounting disc 410 is referred to as revolution, and the rotation of the rotating shaft 310 around its own axis is referred to as rotation.

[0051] The adjusting structure comprises a tensioning wheel 330, a pressing wheel 340, a first elastic member, a first locking member, and a second locking member.

[0052] A plurality of first sliding grooves 411 are formed on the mounting disc 410, and the first sliding grooves 411 extend along the radial direction of the mounting disc 410. The axis direction of the tensioning wheel 330 is parallel to the axis direction of the rotating shaft 310, and the outer wall of the tensioning wheel 330 is provided with a clamping groove, the depth and width of the clamping groove are adapted to the thickness and width of the abrasive belt 320, and the abrasive belt 320 is wound on the clamping groove of the outer wall of the tensioning wheel 330, so that the tensioning wheel 330 can exert a tensioning force on the abrasive belt 320. The first sliding shaft 331 is coaxially and rotationally connected to the tensioning wheel 330, and the end of the first sliding shaft 331 is provided with a block-shaped structure adapted to the first sliding groove 411, so that the end of the first sliding shaft 331 can be completely embedded in the first sliding groove 411, the tensioning wheel 330 and the mounting disc 410 form a sliding connection, and the tensioning wheel 330 can move along the radial direction of the mounting disc 410.

[0053] The axis direction of the compression wheel 340 is parallel to the axis direction of the tension wheel 330, and the outer side wall of the compression wheel 340 can be in contact with the abrasive belt 320 on the outer side of the wire to press the abrasive belt 320 and indirectly support the wire. The second sliding shaft 341 is rotationally connected to the compression wheel 340, and the end of the second sliding shaft 341 is provided as a block structure matched with the first sliding groove 411, so that the end of the second sliding shaft 341 can be embedded in the same first sliding groove 411 as the first sliding shaft 331, so that the compression wheel 340 is slidingly connected with the mounting disc 410 and can move along the radial direction of the mounting disc 410.

[0054] The first elastic member is a first compression spring 350, one end of the first compression spring 350 is fixedly connected to the first sliding shaft 331, and the other end is fixedly connected to the second sliding shaft 341. The elastic force direction of the first compression spring 350 is always along the radial direction of the mounting disc 410, and the elastic force always causes the tension wheel 330 and the compression wheel 340 to move away from each other along the radial direction.

[0055] The first locking member is a first locking bolt 332, which is a standard external thread bolt. The first locking bolt 332 can penetrate the mounting disc 410 and be threadedly connected with the first sliding shaft 331. By tightening the first locking bolt 332, the relative position of the tension wheel 330 and the mounting disc 410 can be locked. The second locking member is a second locking bolt 342, which is a standard external thread bolt with the same specifications as the first locking bolt 332. The second locking bolt 342 penetrates the mounting disc 410 and is threadedly connected with the second sliding shaft 341. By tightening the second locking bolt 342, the relative position of the compression wheel 340 and the mounting disc 410 can be locked.

[0056] The adjustment structure has a first state, a second state, a third state, and a fourth state. When the adjustment structure is in the first state, the tension wheel 330 and the compression wheel 340 can freely move along the radial direction of the mounting disc 410. When the adjustment structure is in the second state, the relative positions of the tension wheel 330 and the compression wheel 340 and the mounting disc 410 are completely locked, and the tension wheel 330 and the compression wheel 340 cannot move along the radial direction of the mounting disc 410. When the adjustment structure is in the third state, the tension wheel 330 can freely move along the radial direction of the mounting disc 410, and the relative position of the compression wheel 340 and the mounting disc 410 is completely locked. When the adjustment structure is in the fourth state, the relative position of the tension wheel 330 and the mounting disc 410 is locked, and the compression wheel 340 can freely move along the radial direction of the mounting disc 410.

[0057] In the initial state of the device, the locking positions of the tension wheel 330 and the mounting disc 410 are adjusted by operating the first locking bolt 332, and the locking positions of the compression wheel 340 and the mounting disc 410 are adjusted by operating the second locking bolt 342, so that the abrasive belt 320 is in a free state without external force constraint, so that the wire can smoothly pass through the plurality of abrasive belts 320.

[0058] When the adjustment structure needs to adjust the polishing force according to the change of the revolution speed of the rotation shaft 310 and the change of the diameter of the wire, the adjustment structure is adjusted to the first state after the wire passes through the plurality of abrasive belts 320. At this time, the tensioning wheel 330 moves outward along the radial direction under the elastic force of the first compression spring 350 to tighten the abrasive belt 320, and the pressing wheel 340 moves inward along the radial direction under the elastic force of the first compression spring 350 to press against the abrasive belt 320 on the outer side of the wire.

[0059] When the diameter of the wire to be polished is large, the contact and wrapping area of the abrasive belt 320 with the surface of the wire increases synchronously, and the radial support force of the wire to the abrasive belt 320 is enhanced, so that the abrasive belt 320 pushes the pressing wheel 340 to move outward along the radial direction of the mounting disc 410, the pressing wheel 340 compresses the first compression spring 350, the first compression spring 350 pushes the tensioning wheel 330 to further move outward along the radial direction, and the tension of the abrasive belt 320 increases accordingly, so as to ensure that the polishing force can adapt to the polishing requirement of the wire with a large diameter; when the diameter of the wire is small, the support force of the wire to the abrasive belt 320 decreases, the elastic force of the first compression spring 350 pushes the pressing wheel 340 to move inward along the radial direction, the tensioning wheel 330 moves inward along the radial direction, and the tension of the abrasive belt 320 decreases, so that the polishing force adapts to the wire with a small diameter.

[0060] In the process of polishing the wire by the abrasive belt 320, when the revolution speed of the rotation shaft 310 increases, the centrifugal force received by the tensioning wheel 330 increases in direct proportion to the revolution speed, the centrifugal force makes the tensioning wheel 330 further move outward along the radial direction of the mounting disc 410, the tension of the abrasive belt 320 increases, and the polishing force of the abrasive belt 320 to the wire further increases; when the revolution speed decreases, the centrifugal force received by the tensioning wheel 330 decreases, the tensioning wheel 330 moves inward along the radial direction, the tension of the abrasive belt 320 decreases, and the polishing force decreases synchronously.

[0061] When the wire with a small diameter is polished, the wire with a small diameter has weak bending resistance, and the wire will be bent if the polishing force is too large. Therefore, before the device is started, the adjustment structure can be adjusted to the second state, the relative position of the tensioning wheel 330 and the mounting disc 410 is locked by tightening the first locking bolt 332, and the relative position of the pressing wheel 340 and the mounting disc 410 is locked by tightening the second locking bolt 342. After locking, the tensioning wheel 330 will not move along the radial direction due to the centrifugal force, the tension of the abrasive belt 320 is fixed, the pressing wheel 340 no longer provides additional pressing force to the abrasive belt 320, but can still ensure that the wire will not be bent.

[0062] If the polishing force is too large when the adjustment structure is in the first state, the adjustment structure can be adjusted to the third state, and the second locking bolt 342 is tightened to lock the compression wheel 340, and the free movement of the tension wheel 330 is retained. At this time, the tension wheel 330 can still move radially with the change in the revolution speed of the rotating shaft 310 to adjust the tension of the abrasive belt 320, but because the compression wheel 340 is fixed, the elastic force change range of the first compression spring 350 is reduced. Therefore, at the same revolution speed of the rotating shaft 310, the polishing force provided by the abrasive belt 320 when the adjustment structure is in the third state is smaller than the polishing force when the adjustment structure is in the first state, and the polishing force can still be adjusted by adjusting the revolution speed of the rotating shaft 310.

[0063] When it is necessary to reduce the surface roughness of the wire, the adjustment structure can be adjusted to the fourth state before the device is started, and the first locking bolt 332 is tightened to lock the tension wheel 330, and the free movement of the compression wheel 340 is retained. At this time, the position of the tension wheel 330 is fixed, and the tension of the abrasive belt 320 does not change with the change in the revolution speed of the rotating shaft 310. The compression wheel 340 can move radially under the joint action of the elastic force of the first compression spring 350 and the support force of the wire. When the wire pushes the abrasive belt 320 to press the compression wheel 340, the compression wheel 340 moves radially outward, and the first compression spring 350 is compressed, and its elastic force increases slightly, but because the tension wheel 330 is fixed, the tension of the abrasive belt 320 only increases slightly. When the device is running, the change in the revolution speed of the rotating shaft 310 only changes the relative friction frequency of the abrasive belt 320 and the wire. At this time, increasing the revolution speed of the rotating shaft 310 can increase the relative friction frequency of the abrasive belt 320 and the wire, reduce the surface roughness of the wire, and adapt to high-precision polishing requirements.

[0064] Therefore, the adjustment structure realizes precise adaptation of the polishing force of the wire with different diameters and flexible response to polishing requirements through the tension wheel 330 and the compression wheel 340 which can slide radially along the mounting disc 410, and the locking function of the first locking bolt 332 and the second locking bolt 342, thereby improving the polishing quality, efficiency and scene adaptability of the wire.

[0065] Further, the polishing assembly further comprises a fixed frame 360, which is a rigid frame structure, coaxially arranged with the mounting disc 410, and the fixed frame 360 is provided with a through hole through which the wire passes, a plurality of limiting rings and a plurality of second sliding grooves.

[0066] The limiting ring is a circular ring structure, and the inner diameter of each limiting ring is in gap cooperation with the outer diameter of the rotating shaft 310. The limiting ring is fixedly connected to the outer wall of the fixed frame 360, and each limiting ring is sleeved on the outer wall of one rotating shaft 310 and is rotatably connected to the rotating shaft 310 through a bearing. The limiting ring is used to limit the relative position between the plurality of rotating shafts 310 and prevent the rotating shaft 310 from producing radial deviation during high-speed revolution and rotation.

[0067] The second sliding groove extends along the radial direction of the fixing frame 360, and the size of the second sliding groove is consistent with the size of the first sliding groove 411 on the mounting disc 410, and each second sliding groove is axially aligned with a first sliding groove 411, used to provide additional sliding support for the first sliding shaft 331 and the second sliding shaft 341. The end of the first sliding shaft 331 and the second sliding shaft 341 away from the first sliding groove 411 is embedded in the corresponding second sliding groove, so that the two ends of the tensioning wheel 330 and the compression wheel 340 are supported by the mounting disc 410 and the fixing frame 360 respectively, that is, the fixing frame 360 and the mounting disc 410 jointly form a two-end support structure of the compression wheel 340 and the tensioning wheel 330.

[0068] Therefore, by arranging the fixing frame 360, the radial deviation of the rotating shaft 310 is further limited, and the stability of the device operation is improved.

[0069] The embodiment of the application also provides a wire drawing surface cleanliness improvement method, which is applied to the wire drawing surface cleanliness improvement device in the above embodiment and includes the following steps.

[0070] S100, wire introduction and preparation.

[0071] S110, the wire is sent from the device input end, passes through the straightening wheel 230, and the straightening wheel 230 straightens the entering wire; and the wire passes through the plurality of abrasive belts 320 in turn, and the bending directions of adjacent two abrasive belts 320 are opposite when the two abrasive belts 320 contact the wire.

[0072] S120, according to the diameter of the wire to be processed, the required polishing force and the surface roughness requirement, the plurality of adjustment structures are set to the corresponding working states:

[0073] The first state is that the first locking bolt 332 and the second locking bolt 342 are loosened, so that the tensioning wheel 330 and the compression wheel 340 can freely move in the radial direction. It is suitable for the conventional working condition that requires automatic adjustment of the polishing force according to the rotating speed and the wire diameter.

[0074] The second state is that the first locking bolt 332 and the second locking bolt 342 are tightened to lock the tensioning wheel 330 and the compression wheel 340. It is suitable for polishing the wire with small diameter and easy to bend, and requires constant and gentle polishing force.

[0075] The third state is that the first locking bolt 332 is loosened to enable the tensioning wheel 330 to freely move, and the second locking bolt 342 is tightened to lock the compression wheel 340. It is suitable for the scene that requires to reduce the overall polishing force, but still can be fine-tuned with the rotating speed.

[0076] The fourth state, tighten the first locking bolt 332 to lock the tension pulley 330, and loosen the second locking bolt 342 to make the compression pulley 340 freely move. It is suitable for high-precision, low-roughness polishing, and the polishing force needs to be stable and the surface quality can be improved by increasing the speed.

[0077] S130, if the adjustment structure is in the first state at this time, when the wire diameter increases, the wire will push the abrasive belt 320 outward, push the compression pulley 340 to move outward in the radial direction, compress the first compression spring 350, and thus push the tension pulley 330 to move outward, so that the total tension of the abrasive belt 320 increases, and the polishing force required by the larger diameter wire is automatically adapted. When the wire diameter decreases, the supporting force of the wire on the abrasive belt 320 decreases, the elastic force of the first compression spring 350 pushes the compression pulley 340 to move inward in the radial direction, and at the same time the tension pulley 330 also moves inward, so that the total tension of the abrasive belt 320 decreases, preventing over-polishing or bending the wire.

[0078] S200, start the device and perform polishing.

[0079] S210, start the driving motor 440 to drive the rotating plate 430 to rotate at a constant speed through the transmission belt. The rotation of the rotating plate 430 drives the plurality of rotating shafts 310 to revolve around the axis of the wire.

[0080] S220, during the revolution of the plurality of rotating shafts 310, the fixed outer gear ring 420 meshes with the transmission gear 312 on each rotating shaft 310, forcing the rotating shaft 310 to revolve while rotating around its own axis. The rotation of the rotating shaft 310 drives the limiting wheel 311 thereon and the abrasive belt 320 wound thereon to rotate at high speed.

[0081] S230, the straightened wire passes through the polishing area composed of high-speed moving abrasive belts 320 at a constant speed. The plurality of abrasive belts 320 completely wrap the wire from different directions and polish it uniformly in all directions to remove surface oxidation and impurities.

[0082] S240, the wire that has completed surface polishing is sent out from the output end of the device and enters the next process.

[0083] S300, adjust the polishing degree.

[0084] S310, if the adjustment structure is in the first state or the third state, increase the speed of the driving motor 440 to increase the revolution speed of the rotating shaft 310, and the centrifugal force acting on the tension pulley 330 increases. The increased centrifugal force will push the tension pulley 330 to move outward in the radial direction, further tensioning the abrasive belt 320 and increasing the polishing pressure of the abrasive belt 320 on the wire; conversely, reducing the revolution speed of the rotating shaft 310, the centrifugal force acting on the tension pulley 330 decreases, and the tensioning degree and polishing pressure of the abrasive belt 320 decrease accordingly.

[0085] S320, if the adjustment structure is in the fourth state, the rotation speed of the driving motor 440 is increased, the revolution speed of the plurality of rotation shafts 310 is accelerated, the relative friction frequency between the abrasive belt 320 and the surface of the wire is increased, the surface roughness of the wire is reduced, and the high-precision polishing requirement is met; otherwise, the rotation speed of the rotation shaft 310 is reduced, the relative friction frequency between the abrasive belt 320 and the wire is reduced, and the surface roughness of the wire is increased.

[0086] S400, manual intervention and process optimization.

[0087] S410, during the polishing process, the rotation speed of the driving motor 440 can be adjusted in real time according to the surface quality result detected online. By changing the rotation speed, the friction frequency between the abrasive belt 320 and the wire and the polishing pressure are indirectly controlled to optimize the polishing effect.

[0088] S420, if it is found in the operation that the state of the current adjustment structure does not meet the process requirement, the process can be stopped and step S110 can be executed to switch the adjustment structure to a more suitable state, and then the process is restarted.

[0089] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that they are within the scope of the present disclosure.

[0090] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A wire drawing surface cleanliness improving device characterized by, The polishing assembly comprises a plurality of rotating shafts and a plurality of abrasive belts, each rotating shaft extends along the running direction of the wire and is rotatably connected to the support, and the plurality of rotating shafts are used to support the abrasive belts; each abrasive belt is wound around at least two rotating shafts, and each abrasive belt has a preset width size; in the extension direction of the rotating shafts, the bending directions of two adjacent abrasive belts are opposite when the two adjacent abrasive belts contact the wire, and the two adjacent abrasive belts have a first preset gap therebetween; the polishing assembly further comprises a plurality of adjusting structures, each adjusting structure is capable of automatically adjusting the tension of one abrasive belt according to the diameter of the wire; In the process of polishing the wire, each adjusting structure is further capable of automatically adjusting the tension of one abrasive belt according to the rotating speed of the mounting disc; The driving assembly comprises a mounting disc and a power source, the mounting disc is rotatably connected to the support, and each rotating shaft is rotatably connected to the mounting disc; the power source is used to drive the mounting disc to rotate around its axis and drive the rotating shafts to rotate around their axes; a plurality of first sliding grooves are formed in the mounting disc and extend along the radial direction of the mounting disc; The adjusting structure comprises a tensioning wheel, the tensioning wheel is slidably connected to the mounting disc and is capable of moving along the radial direction of the mounting disc; when the mounting disc rotates, the tensioning wheel makes the rotating speed of the mounting disc and the tension of the abrasive belt in a positive correlation; the adjusting structure further comprises a pressing wheel, the pressing wheel is connected to the mounting disc, and the outer wall of the pressing wheel is capable of contacting the abrasive belt located on the outer side of the wire to press the abrasive belt located on the outer side of the wire; the pressing wheel is slidably connected to the mounting disc, and the pressing wheel and the tensioning wheel are distributed along the same radial direction of the mounting disc; a first elastic member is connected between the tensioning wheel and the pressing wheel, and the elastic force of the first elastic member always makes the tensioning wheel and the pressing wheel move away from each other; the tensioning wheel is coaxially and rotatably connected to a first sliding shaft, and the end of the first sliding shaft is provided in a block-shaped structure matched with the first sliding groove, so that the end of the first sliding shaft can be completely embedded in the first sliding groove; The adjusting structure further comprises a first locking member and a second locking member, the first locking member is used to lock the relative position of the tensioning wheel and the mounting disc; and the second locking member is used to lock the relative position of the pressing wheel and the mounting disc; In the process of polishing the wire by the abrasive belt, when the rotating speed of the rotating shaft increases, the centrifugal force acting on the tensioning wheel increases in proportion to the rotating speed, the centrifugal force makes the tensioning wheel further move outward along the radial direction of the mounting disc, the tension of the abrasive belt increases, and then the polishing force of the abrasive belt on the wire further increases; when the rotating speed decreases, the centrifugal force acting on the tensioning wheel decreases, the tensioning wheel moves inward along the radial direction, the tension of the abrasive belt decreases, and the polishing force simultaneously decreases. A limiting wheel is fixedly arranged on each rotating shaft, a plurality of abrasive belts are wound around the limiting wheel, and adjacent abrasive belts are wound around different limiting wheels, and the limiting wheel is used to maintain the relative distance between the plurality of abrasive belts on the same rotating shaft. The polishing assembly further comprises a fixing frame, the fixing frame is provided with a through hole through which the wire passes, and the fixing frame is sleeved on the plurality of rotating shafts to limit the relative position of the plurality of rotating shafts.

2. The wire drawing surface cleanliness improvement device according to claim 1, characterized by, ​ 3. The wire drawing surface cleanliness improvement device according to claim 1, characterized by, ​ 4. The wire drawing surface cleanliness improvement device according to claim 1, characterized by The driving assembly further comprises an outer tooth ring coaxial with the mounting disc and fixedly connected to the support, and one transmission gear is fixedly arranged on each rotating shaft, the transmission gear being capable of engaging with the outer tooth ring and driving the rotating shaft to rotate about its own axis when the mounting disc rotates.

5. A wire drawing surface cleanliness improvement method applied to the wire drawing surface cleanliness improvement device according to claim 1, characterized by, The method comprises the following steps: S100, sequentially threading the wire through a plurality of abrasive belts, and making the bending directions of adjacent two abrasive belts opposite when the wire contacts the abrasive belts; S200, adjusting the tension of the abrasive belts and the pressure on the wire according to the diameter of the wire and the processing requirement; S300, starting the power source to drive the mounting disc to synchronously rotate the plurality of rotating shafts about the axis of the mounting disc, and to drive each rotating shaft to rotate about its own axis, so that the abrasive belts polish the wire; S400, during the polishing process, adjusting the rotating speed of the mounting disc by the power source to adjust the polishing intensity of the abrasive belts on the wire according to the polishing effect of the wire and the processing requirement.

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