Titanium material stretching device for processing nickel-titanium wire

Abstract

The application discloses a titanium material stretching equipment for nickel-titanium wire processing and belongs to the technical field of nickel-titanium wire processing. The equipment comprises a stretching mechanism and two shaping mechanisms, the stretching mechanism comprises a threading part, a wiping part and a liquid outlet part. A rotating pipe with wiping cotton arranged therein is rotatably connected in the threading part, a spiral groove is formed in the outer wall of the rotating pipe, a reciprocating ring is reciprocatingly connected outside the rotating pipe, and a sliding ball is fixed to the inner wall of the reciprocating ring and is slidably connected with the spiral groove. When the reciprocating ring reciprocates, the rotating pipe is driven to rotate in the circumferential direction through the cooperation of the sliding ball and the spiral groove, so that the wiping cotton rotates in the circumferential direction while reciprocating in the axial direction, the surface of the nickel-titanium wire is uniformly wiped in multiple directions, oil stains and impurities are removed, and the risk of dirt accumulation or scratching caused by one-way wiping is avoided. In addition, the liquid outlet part realizes automatic quantitative liquid supply, the equipment is further integrated with a tension dynamic adjusting assembly, the two shaping mechanisms realize pre-shaping and final shaping respectively, and the processing efficiency and product quality are improved.

Description

Technical Field

[0001] This invention relates to the field of nickel-titanium wire processing technology, and more specifically, to a titanium stretching device for nickel-titanium wire processing. Background Technology

[0002] In the production and processing of nickel-titanium wire, coarse-gauge nickel-titanium wire blanks typically require multiple passes of drawing to reduce their diameter, resulting in finished wires that meet dimensional accuracy and surface quality requirements. During this multi-pass continuous drawing and diameter reduction process, drawing lubricant, flaked metal particles, and oxide scale inevitably remain on the wire surface. If these residues are not thoroughly removed before entering the next drawing die, it can easily lead to excessive wear on subsequent dies, and even cause micro-cracks and scratches on the finished wire surface, severely affecting the dimensional accuracy of the drawn product.

[0003] Currently, nickel-titanium wire drawing equipment on the market typically includes basic components such as a feeding device, drawing dies, a traction device, and a take-up device. During operation, the nickel-titanium wire to be processed passes through each die sequentially under traction force, achieving a gradual reduction in diameter during drawing. However, existing nickel-titanium wire drawing equipment still has the following shortcomings in practical use: Before stretching, some existing equipment is equipped with simple wiping devices, but most of them use fixed wiping cotton or unidirectional wiping methods. The wiping direction is singular, making it difficult to clean the surface of the nickel-titanium wire in an all-round and uniform manner. Moreover, there is a lack of relative movement between the wiping cotton and the wire, resulting in limited cleaning effect. It is easy for dirt to accumulate in a localized area of ​​the wiping cotton, causing secondary pollution or scratches on the surface of the wire. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a titanium material stretching device for nickel-titanium wire processing that can improve the coverage of blind spots in the cleaning process. Unlike traditional continuous immersion or spraying, the intermittent discharge pipe driven by a cam forms a mechanical rhythm with the wiping action, realizing on-demand dripping of lubricating fluid, reducing the overall energy consumption and waste liquid discharge, achieving uniform wiping of the nickel-titanium wire surface in multiple directions, effectively removing surface oil, oxides and impurities, avoiding the risk of dirt accumulation or scratches caused by unidirectional wiping, and improving the surface cleanliness of the nickel-titanium wire.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A titanium wire stretching device for nickel-titanium wire processing includes a stretching mechanism and two shaping mechanisms fixedly mounted on the stretching mechanism. The stretching mechanism includes a threading component, a wiping component rotatably fitted on the threading component, and a liquid dispensing component reciprocatingly slidably fitted on the threading component. The threading component includes a positioning frame, with fixing holes through which two shaping mechanisms are fixedly connected on opposite outer sides. An annular frame coaxially arranged with the fixing holes is fixed on one inner side of the positioning frame. Two symmetrically arranged threaded columns are fixed on one side of the annular frame, and a positioning ring coaxially arranged with the annular frame is inserted between the two threaded columns. Annular grooves are formed on opposite end faces of the annular frame and the positioning ring. The wiping component includes a rotating tube rotatably fitted between the two annular grooves. A spiral groove is formed on the outer wall of the rotating tube, and wiping cotton is fixed inside. A reciprocating ring coaxially arranged with the rotating tube is reciprocally slidably fitted on the outer wall of the rotating tube. An extension rod is fixed on the inner wall of the reciprocating ring, and a sliding ball slidably fitted with the spiral groove is fixed at the end of the extension rod.

[0006] The invention is further configured such that: a transverse groove is provided through one outer side of the positioning frame; a vertical plate is fixed to the outer wall of the reciprocating ring and slides back and forth with the transverse groove; a reciprocating groove is provided through one side of the vertical plate; two L-shaped base plates are fixedly and symmetrically arranged near the bottom of one outer side of the positioning frame; a first motor is fixed to one outer side of one L-shaped base plate; a first sprocket is rotatably engaged with the inner wall of the other L-shaped base plate via a rotating shaft; a second sprocket is fixed inside one L-shaped base plate at the output shaft of the first motor; and a transmission chain is fixed between the first sprocket and the second sprocket.

[0007] The present invention is further configured such that: a rotating rod is fixed to the end of the first sprocket, a rotating plate is fixed to the end of the rotating rod, and a reciprocating lever is fixed to the side of the rotating plate to reciprocate and slide in a reciprocating groove.

[0008] The present invention is further configured such that: a first top plate is fixed to the top of the positioning frame, a downwardly extending conical liquid storage tube is fixed through the top of the first top plate, a first flow pipe is connected to the top of the conical liquid storage tube, a first vertical groove is opened through the outer side of the positioning frame below the first top plate, and a first guide rod is fixed to the bottom of the first top plate outside the positioning frame.

[0009] The present invention is further configured such that: the liquid outlet includes a sliding base plate that reciprocates and slides on the first vertical groove, the sliding base plate and the first guide rod are slidably connected through each other, and a first spring is fixed between the sliding base plate and the first top plate and sleeved on the first guide rod.

[0010] The invention is further configured such that: a lifting base plate is fixed to one side of the sliding base plate located outside the positioning frame; a conical discharge pipe, which is slidably fitted inside the conical liquid storage tube, is fixed to the other side of the sliding base plate located inside the positioning frame; a through-ring is provided at the discharge end of the conical discharge pipe; a turbulence auger is fixed to the top of the conical discharge pipe located inside the conical discharge pipe; several discharge slots are provided through the outer periphery of the conical discharge pipe near the top; an elastic expansion sealing sleeve is fixed between the discharge end of the conical discharge pipe and the outer periphery of the conical liquid storage tube; a rotating cam is fixed to the output shaft of the first motor and contacts the bottom of the lifting base plate; a speed ratio adjusting gearbox is detachably connected between the output shaft of the first motor and the rotating cam.

[0011] The invention is further configured as follows: the inner wall of the positioning frame is symmetrically fitted with two fixed pulleys via a rotating shaft; the top of the positioning frame has two downwardly extending second vertical grooves; a lifting frame is slidably fitted between the two second vertical grooves; one side of the lifting frame is located inside the positioning frame and is fitted with two symmetrically arranged adjusting pulleys via a rotating shaft; an L-shaped support plate is fixed to the outer wall of the positioning frame between the two second vertical grooves; a telescopic cylinder is fixed to the bottom of the L-shaped support plate; the telescopic end of the telescopic cylinder is fixedly connected to the bottom of the lifting frame; a second guide rod is fixed to the bottom of the L-shaped support plate; a guide sleeve is fixed to one side of the lifting frame and slidably fitted through the second guide rod; a second top plate is fixed to the inner wall of the positioning frame between the two second vertical grooves; a downwardly extending cleaning pipe is fixed to the top of the second top plate; a cleaning nozzle is provided at the bottom of the cleaning pipe; and a second flow pipe is connected to the top of the cleaning pipe.

[0012] The present invention is further configured such that: the shaping mechanism includes a positioning component and a rotating component rotatably fitted on the positioning component; the positioning component includes a fixing ring fixedly connected inside the fixing hole, the top of the fixing ring is fixed with an annular seat, and the top of the annular seat is provided with a plurality of T-shaped grooves.

[0013] The present invention is further configured such that: a plurality of T-shaped sliders are slidably fitted inside the T-shaped grooves; an inner diameter rod is fixed to the side of each of the T-shaped sliders; an arc-shaped shaping block is fixed to the end of each of the inner diameter rods inside the annular seat; a plurality of arc-shaped blocks are fixed to the end of the annular seat; and a bearing ring is fixed to the top of each of the arc-shaped blocks.

[0014] The invention is further configured such that: each of the T-shaped sliders has a toggle lever fixed to its top; the rotating component includes a gear ring that rotates and engages with a bearing ring via a bearing, the top of the gear ring having a plurality of arc-shaped grooves that respectively engage with a plurality of toggle levers; two symmetrically arranged motor mounting plates are fixed to one outer side of the positioning frame, and a second motor is fixed to the side of each of the two motor mounting plates, the output shaft of the second motor having a rotating gear that meshes with the gear ring.

[0015] The advantages of this invention are: 1. By setting up a wiping component, this invention utilizes the power distribution of the same motor to transform the reciprocating linear motion into a composite motion of the rotating tube. This design enables the wiping cotton to form a spiral cross wiping trajectory on the surface of the wire, improving the coverage of blind spots in cleaning. Unlike traditional continuous soaking or spraying, the cam-driven intermittent discharge tube works in synergy with the wiping action to achieve on-demand dripping of lubricating fluid, reducing overall energy consumption and waste liquid discharge. It achieves uniform wiping of the nickel-titanium wire surface in multiple directions, effectively removing surface oil, oxides, and impurities, avoiding the risk of dirt accumulation or scratches caused by unidirectional wiping, and improving the surface cleanliness of the nickel-titanium wire.

[0016] 2. This invention, by setting up a liquid outlet component, utilizes the rotating cam on the output shaft of the first motor to periodically push the lifting base plate, and in conjunction with the reset action of the first spring, drives the conical discharge pipe to slide back and forth within the conical liquid storage pipe, thereby realizing the automatic, quantitative, and intermittent supply of lubricating fluid; at the same time, the turbulence auger set inside the conical discharge pipe agitates the liquid during the lifting process, promoting uniform mixing of the liquid and accelerating the liquid discharge, thereby improving the uniformity and controllability of the liquid supply.

[0017] 3. This invention sets up fixed pulleys and adjusting pulleys, and uses a telescopic cylinder to drive the lifting frame to rise and fall to change the position of the adjusting pulleys, thereby adjusting the wrap angle and wire path length of the nickel-titanium wire around the pulleys, realizing dynamic adjustment of the tensile tension of the nickel-titanium wire, adapting to the different tension requirements of different specifications of nickel-titanium wires or different stretching processes, and effectively improving the process adaptability of the equipment and the stability of product processing.

[0018] 4. This invention, by setting up a shaping mechanism, uses a second motor to drive the gear ring to rotate. The arc groove on the gear ring drives the T-shaped slider to slide radially along the T-shaped groove through a toggle rod, thereby driving multiple arc-shaped shaping blocks to move synchronously and equally toward the center or outward, realizing rapid and precise adjustment of the shaping aperture. Moreover, each arc-shaped shaping block always maintains coaxial movement, effectively avoiding the eccentricity problem and ensuring the roundness and dimensional consistency of the cross-section of the nickel-titanium wire after shaping. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a titanium material stretching device for nickel-titanium wire processing according to the present invention.

[0020] Figure 2 This is a schematic diagram showing the usage state of a titanium material stretching device for nickel-titanium wire processing according to the present invention.

[0021] Figure 3 This is a schematic diagram of the tensioning mechanism of the present invention.

[0022] Figure 4 This is a schematic diagram of the shaping mechanism of the present invention.

[0023] Figure 5 This is a schematic diagram of the threading component of the present invention.

[0024] Figure 6 This is a schematic diagram of the threading component of the present invention from another angle.

[0025] Figure 7 This is a schematic diagram of the back structure of the threading component of the present invention.

[0026] Figure 8 This is a schematic diagram of the wiping component of the present invention.

[0027] Figure 9 This is a schematic diagram of the liquid outlet component of the present invention.

[0028] Figure 10 This is a schematic diagram of the positioning component of the present invention.

[0029] Figure 11 This is a front view of the positioning component of the present invention.

[0030] Figure 12 This is a schematic diagram of the rotating component of the present invention.

[0031] In the diagram: 1. Stretching mechanism; 2. Shaping mechanism; 3. Threading component; 301. Positioning frame; 302. Fixing hole; 303. Ring frame; 304. Threaded post; 305. Positioning ring; 306. Annular groove; 307. Transverse groove; 308. L-shaped base plate; 309. First motor; 310. First sprocket; 311. Second sprocket; 312. Conveyor chain; 313. Rotating rod; 314. Rotating plate; 315. Towards... 316. First top plate; 317. Conical liquid storage tube; 318. First flow tube; 319. First vertical groove; 320. First guide rod; 321. Rotating cam; 322. Fixed pulley; 323. Second vertical groove; 324. Lifting frame; 325. Adjusting pulley; 326. L-shaped support plate; 327. Telescopic cylinder; 328. Motor mounting plate; 329. Second motor; 330. Rotating gear; 331. Second top plate; 332, cleaning pipe; 333, cleaning nozzle; 334, second flow pipe; 335, second guide rod; 336, guide sleeve; 4, wiping component; 401, rotating pipe; 402, spiral channel; 403, wiping cotton; 404, reciprocating ring; 405, extension rod; 406, sliding ball; 407, vertical plate; 408, reciprocating channel; 5, liquid outlet component; 501, sliding bottom plate; 502, first spring; 503. Lifting base plate; 504. Conical discharge pipe; 505. Through ring; 506. Turbulent auger; 507. Discharge chute; 6. Positioning component; 601. Fixing ring; 602. Annular seat; 603. T-slot; 604. T-slider; 605. Inner diameter rod; 606. Arc-shaped shaping block; 607. Arc-shaped block; 608. Bearing ring; 609. Actuating rod; 7. Rotating component; 701. Gear ring; 702. Arc-shaped groove. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0034] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0035] Example 1, please refer to Figures 1-12The present invention provides the following technical solution: a titanium wire stretching device for nickel-titanium wire processing, specifically comprising a stretching mechanism 1 and two shaping mechanisms 2 fixedly mounted on the stretching mechanism 1. The stretching mechanism 1 includes a threading component 3, a wiping component 4 rotatably fitted on the threading component 3, and a liquid dispensing component 5 reciprocatingly slidingly fitted on the threading component 3. The threading component 3 includes a positioning frame 301, with fixing holes 302 respectively fixedly connected to the two shaping mechanisms 2 on both opposite outer sides of the positioning frame 301. An annular frame 303 coaxially arranged with the fixing holes 302 is fixed on one inner side of the positioning frame 301, and two symmetrically arranged screws are fixed on one side of the annular frame 303. The threaded column 304 has a positioning ring 305 coaxially arranged between the two threaded columns 304. The ring frame 303 and the positioning ring 305 are both provided with annular grooves 306 on opposite end faces. The wiping component 4 includes a rotating tube 401 rotatably fitted between the two annular grooves 306. The outer wall of the rotating tube 401 is provided with a spiral groove 402. Wiping cotton 403 is fixed inside. The outer wall of the rotating tube 401 is reciprocally slidably fitted with a reciprocating ring 404 coaxially arranged with the rotating tube 401. An extension rod 405 is fixed on the inner wall of the reciprocating ring 404. A sliding ball 406 that slidably fits with the spiral groove 402 is fixed at the end of the extension rod 405. Furthermore, a transverse groove 307 is provided through one outer side of the positioning frame 301, and a vertical plate 407 is fixed to the outer wall of the reciprocating ring 404, which reciprocates and slides in cooperation with the transverse groove 307. A reciprocating groove 408 is provided through one side of the vertical plate 407. Two L-shaped base plates 308 are fixedly and symmetrically arranged near the bottom on one outer side of the positioning frame 301. A first motor 309 is fixed to one outer side of one L-shaped base plate 308, and a first sprocket 310 is rotatably engaged with the inner wall of the other L-shaped base plate 308 through a rotating shaft. A second sprocket 311 is fixed inside one L-shaped base plate 308 at the output shaft of the first motor 309. A transmission chain 312 is fixed between the first sprocket 310 and the second sprocket 311. A rotating rod 313 is fixed to the end of the first sprocket 310, and a rotating plate 314 is fixed to the end of the rotating rod 313. A reciprocating lever 315 that reciprocates and slides in cooperation with the reciprocating groove 408 is fixed to the side of the rotating plate 314.

[0036] The specific application of this embodiment is as follows: The titanium material stretching equipment for nickel-titanium wire processing is mainly used for surface lubrication, cleaning, and wiping of nickel-titanium wire during the stretching process. In specific application, the nickel-titanium wire to be processed is first passed sequentially through the shaping mechanism 2 on one side, the liquid outlet 5, the wiping component 4 inside the threading component 3, and the shaping mechanism 2 on the other side, so that the nickel-titanium wire passes through the entire equipment axially and is connected to the external traction device to provide continuous and stable stretching power.

[0037] After the first motor 309 is started, its output shaft drives the second sprocket 311 to rotate, and drives the first sprocket 310 to rotate synchronously through the transmission chain 312. The rotation of the first sprocket 310 drives the rotating rod 313 and the rotating plate 314 to rotate, and the reciprocating lever 315 on the rotating plate 314 performs a circular motion accordingly. Since the reciprocating lever 315 is slidably fitted in the reciprocating groove 408 of the vertical plate 407 (the reciprocating groove 408 is a longitudinally opened waist-shaped elongated hole structure, the end of the reciprocating lever 315 is rotatably fitted with a rolling bearing and slidably embedded in the reciprocating groove 408, and the sliding allowance of the longitudinal elongated hole absorbs the tangential displacement component when the rotating plate 314 performs a circular motion, preventing dead point jamming and interference), the vertical plate 407 also performs a reciprocating linear motion in the horizontal direction under the limitation of the transverse groove 307, thereby driving the reciprocating ring 404 fixedly connected to the vertical plate 407 to slide back and forth axially on the outer wall of the rotating tube 401.

[0038] When the first motor 309 drives the reciprocating ring 404 to perform axial reciprocating linear motion along the transverse groove 307 of the positioning frame 301 via chain transmission, the sliding ball 406 fixed to the inner wall of the reciprocating ring 404 slides relative to the spiral groove 402 on the outer wall of the rotating tube 401. Since the rotating tube 401 is limited and rotated within the annular groove 306 of the annular frame 303 and the positioning ring 305 through its two end shoulders (axially fixed, circumferentially rotating), the aforementioned axial reciprocating linear motion is converted into the continuous circumferential rotational motion of the rotating tube 401, thereby allowing the internal wiping cotton 403 to maintain axial relative motion. While stationary, a circumferential composite wiping trajectory is generated to wipe and clean the surface of the lubricated and cleaned nickel-titanium wire. This ensures that the surface of the nickel-titanium wire, which passes through the rotating tube 401, is wiped synchronously, evenly, and continuously, removing oil, oxides, or other impurities adhering to its surface before stretching. This ensures the cleanliness of the nickel-titanium wire surface and is beneficial for the stable operation of subsequent processing. Simultaneously, the reciprocating motion of the reciprocating ring 404 causes relative axial movement between the wiping cotton 403 and the surface of the nickel-titanium wire, further enhancing the cleaning effect and avoiding the risk of dirt accumulation or scratches that may occur with unidirectional wiping. The entire wiping process is synchronized with the stretching action of the nickel-titanium wire, achieving online cleaning and improving processing efficiency and product quality.

[0039] In addition, during equipment operation, external lubricant can be injected into the conical reservoir 317 through the first flow pipe 318, and applied to the surface of the nickel-titanium wire in a timely and quantitative manner according to the coordinated action of the liquid outlet 5 (see Embodiment 2 for details) to improve the wiping effect and reduce friction loss.

[0040] Example 2, please refer to Figures 1-12This second embodiment is an improvement on the first embodiment as follows: Specifically, a first top plate 316 is fixed to the top of the positioning frame 301, and a downwardly extending conical liquid storage tube 317 is fixed through the top of the first top plate 316. A first flow tube 318 is connected to the top of the conical liquid storage tube 317. A first vertical groove 319 is opened through one outer side of the positioning frame 301 below the first top plate 316. A first guide rod 320 is fixed to the bottom of the first top plate 316 outside the positioning frame 301. The liquid outlet 5 includes a sliding bottom plate 501 that reciprocates and slides on the first vertical groove 319. The sliding bottom plate 501 and the first guide rod 320 slide through and slide together. A first spring 502 is fixedly fitted to the first guide rod 320 and sleeved with the first top plate 316; a lifting base plate 503 is fixedly fixed to one side of the sliding base plate 501 outside the positioning frame 301; a conical discharge pipe 504 is fixedly fitted inside the conical liquid storage pipe 317 on the opposite side of the sliding base plate 501, with a through ring 505 at the discharge end of the conical discharge pipe 504; a turbulence auger 506 is fixedly fixed inside the conical discharge pipe 504 at the top of the outer side of the conical discharge pipe 504 near the top; several discharge slots 507 are opened through the outer periphery of the conical discharge pipe 504 near the top; the discharge end of the conical discharge pipe 504 is connected to the conical liquid storage pipe 317. 17 An elastic expansion sealing sleeve is fixed between the outer periphery and the side surface; the output shaft of the first motor 309 is fixed with a rotating cam 321 that contacts the bottom of the lifting base plate 503, and a speed ratio adjusting gearbox is detachably connected between the output shaft of the first motor 309 and the rotating cam 321; the inner wall of the positioning frame 301 is symmetrically arranged with two fixed pulleys 322 through a rotating shaft, and the top of the positioning frame 301 has two downwardly extending second vertical grooves 323, and a lifting frame 324 is slidably engaged between the two second vertical grooves 323; one side of the lifting frame 324 is located inside the positioning frame 301 and is symmetrically arranged with two adjusting pulleys 325 through a rotating shaft; the bottom of the L-shaped support plate 326 is fixed A second guide rod 335 is fixed, and a guide sleeve 336 that slides through and engages with the second guide rod 335 is fixed on one side of the lifting frame 324; an L-shaped support plate 326 is fixed on the outer wall of the positioning frame 301 between two second vertical grooves 323, and a telescopic cylinder 327 is fixed at the bottom of the L-shaped support plate 326, with the telescopic end of the telescopic cylinder 327 fixedly connected to the bottom of the lifting frame 324; a second top plate 331 is fixed on the inner wall of the positioning frame 301 between two second vertical grooves 323, and a downwardly extending cleaning pipe 332 is fixed through the top of the second top plate 331, with a cleaning nozzle 333 at the bottom of the cleaning pipe 332 and a second flow pipe 334 connected to the top of the cleaning pipe 332.

[0041] The specific application of this second embodiment is as follows: In subsequent actual nickel-titanium wire stretching processing, this second embodiment, based on the first embodiment, further integrates automatic liquid supply and cleaning functions. The specific working process is as follows: Lubricating fluid is continuously or intermittently injected into the conical storage pipe 317 through the first flow pipe 318, and through the speed ratio adjustment gearbox (not shown in the figure) connected between the output shaft of the first motor 309 and the rotating cam 321, in processing processes requiring high-frequency wiping but low-flow liquid supply, the rotation period of the rotating cam 321 relative to the sprocket transmission system is changed by switching the gear of the speed ratio adjustment gearbox, thereby achieving decoupling and independent control of the wiping frequency and the liquid output frequency, preventing excessive waste or insufficient supply of lubricating fluid. During the process of the first motor 309 driving the rotating cam 321 to rotate, the rotating cam 321 periodically pushes the lifting base plate 503, causing the lifting base plate 503 to drive the sliding base plate 501 to reciprocate up and down along the first vertical groove 319 and the first guide rod 320. When the sliding base plate 501 rises, it compresses the first spring 502; when it falls, the first spring 502 assists in resetting, thereby realizing the reciprocating sliding of the conical discharge pipe 504 within the conical liquid storage pipe 317. When the conical discharge pipe 504 slides downwards, the elastic expansion sealing sleeve outside the conical discharge pipe 504 deforms (the elastic expansion sealing sleeve is a corrugated elastic expansion sealing sleeve made of fluororubber (FKM) material; this corrugated structure provides a seal through its own axial expansion and contraction during the high-frequency reciprocating sliding of the conical discharge pipe 504, meeting the requirements for chemical corrosion resistance and high-frequency fatigue life), maintaining a seal with the conical liquid storage pipe 317 to prevent liquid leakage. The turbulence auger 506 fixed inside the conical discharge pipe 504 agitates the liquid during its rise and fall, promoting uniform liquid mixing and accelerating the liquid flow from the discharge trough 507. The liquid flows through the discharge trough 507 into the area of ​​the through-ring 505, landing on the surface of the nickel-titanium wire passing through the through-ring 505, thereby pre-lubricating the nickel-titanium wire. Meanwhile, external cleaning fluid can be introduced into cleaning pipe 332 through second flow pipe 334 and sprayed downwards by cleaning nozzle 333 to lubricate the section of nickel-titanium wire before it enters the wiping area, further removing large particles or oil stains from the surface. Simultaneously, to prevent the mixed waste liquid after lubrication and cleaning from overflowing and accumulating inside the equipment, a liquid collection trough is inclinedly installed at the bottom of its positioning frame 301. A drain guide hole is provided through the lowest end of this liquid collection trough, and a waste liquid recovery device is connected externally below the drain guide hole.

[0042] On the path through which the nickel-titanium wire is threaded, the fixed pulley 322 and the adjusting pulley 325 together form a tension adjustment structure. The telescopic cylinder 327 pushes the lifting frame 324 up and down along the second vertical groove 323 according to process requirements. To change the output thrust of the telescopic cylinder 327 to drive the lifting frame 324 up and down, the wrap angle and path length of the nickel-titanium wire around the fixed pulley 322 and the adjusting pulley 325 are changed in real time, achieving true closed-loop dynamic adjustment of the tensile tension of the nickel-titanium wire. The entire device also has a tension detection wheel (with an integrated miniature force sensor) that contacts the nickel-titanium wire. This tension detection wheel is electrically connected to an external PLC controller (external PLC controllers are existing technology and are not shown in the figure; they will not be elaborated upon here), and the PLC controller is connected to the pneumatic pressure regulating proportional valve of the telescopic cylinder 327 via an electrical signal. During the stretching process, the tension detection wheel collects the actual tension data of the nickel-titanium wire in real time and feeds it back to the PLC controller. When the tension value deviates from the preset process range, the PLC controller issues a command to adjust the opening of the proportional valve (the telescopic cylinder 327 is connected to a pneumatic pressure regulating proportional valve, and the two sides of the lifting frame 324 are tightly slidably engaged with the vertically set second guide rod 335 through the guide sleeve 336. Through the dual action of air pressure buffering and mechanical guidance, the high frequency of tension vibration of the nickel-titanium wire during the dynamic stretching process is reduced). The lifting frame 324 drives the adjusting pulley 325 to move up and down, thereby changing the wrap angle and path length of the nickel-titanium wire around the fixed pulley 322 and the adjusting pulley 325, realizing the dynamic adjustment of the stretching tension of the nickel-titanium wire. In summary, this embodiment two realizes the integrated lubrication, cleaning and tension control of nickel-titanium wire before stretching through the cam-driven reciprocating liquid supply mechanism, the elastically sealed conical discharge structure, the independent cleaning spray system and the adjustable tension pulley group.

[0043] Example 3, please refer to Figures 1-12This third embodiment is an improvement on the first embodiment, specifically, the shaping mechanism 2 includes a positioning component 6 and a rotating component 7 rotatably fitted on the positioning component 6; the positioning component 6 includes a fixing ring 601 fixedly connected inside the fixing hole 302, an annular seat 602 fixedly fixed to the top of the fixing ring 601, and a plurality of T-shaped grooves 603 opened on the top of the annular seat 602; a T-shaped slider 604 is slidably fitted inside each of the plurality of T-shaped grooves 603, an inner diameter rod 605 is fixedly fixed to the side of each of the plurality of T-shaped sliders 604, and an arc-shaped shaping block 606 is fixedly fixed at the end of each of the plurality of inner diameter rods 605 inside the annular seat 602, and the end of the annular seat 602 is fixedly fixed. The system includes several arc-shaped blocks 607, with bearing rings 608 fixed to the top of each block 607; several T-shaped sliders 604, each with a lever 609 fixed to its top; a rotating component 7 includes a gear ring 701 that rotates and engages with the bearing ring 608 via a bearing, with several arc-shaped grooves 702 extending through the top of the gear ring 701 and slidingly engaging with several levers 609; two symmetrically arranged motor mounting plates 328 are fixed to one outer side of the positioning frame 301, with a second motor 329 fixed to the side of each of the two motor mounting plates 328, and a rotating gear 330 that meshes with the gear ring 701 fixed to the output shaft of the second motor 329.

[0044] The specific application of this embodiment three is as follows: When nickel-titanium wire undergoes production stretching, after lubrication, cleaning, and wiping, the wire often needs to be shaped and calibrated in terms of cross-sectional shape, roundness, and surface flatness before entering the stretching process to ensure the dimensional accuracy and surface quality of the stretched wire. Based on embodiment one, this embodiment three further integrates an adjustable online shaping mechanism 2, the specific working process of which is as follows: After the nickel-titanium wire passes through the shaping mechanism 2, liquid outlet 5, and wiping component 4 on one side in sequence, it continues to pass through the shaping mechanism 2 on the other side. In each shaping mechanism 2, the nickel-titanium wire passes through a central channel formed by several arc-shaped shaping blocks 606. Initially, each arc-shaped shaping block 606, supported by the T-shaped slider 604 and the inner diameter rod 605, maintains slight contact with the surface of the nickel-titanium wire or leaves a small gap so that the nickel-titanium wire can pass through smoothly without jamming.

[0045] When it is necessary to adjust the forming aperture to accommodate nickel-titanium wires of different diameters or to change the forming compression amount, the second motor 329 is activated. (The second motor 329 is a stepper motor with a self-locking function or equipped with a worm gear reduction assembly. After the rotating gear 330 drives the gear ring 701 to rotate to the target position, the self-locking torque of the second motor 329 or the added mechanical brake pin locks the gear ring 701 to prevent the radial reverse extrusion force generated when the nickel-titanium wire passes through from causing the arc-shaped forming block 606 to passively expand outward.) The output shaft of the second motor 329 drives the rotating gear 330 to rotate. The rotating gear 330 meshes with the gear ring 701, driving the gear ring 701 to rotate smoothly on the bearing ring 608. When the gear ring 701 rotates, the several arc-shaped grooves 702 on its top rotate accordingly. Since the arc-shaped grooves 702 are in sliding engagement with the actuating rod 609 on the top of the T-shaped slider 604, when the arc-shaped grooves 702 rotate with the gear ring 701, the groove walls of the arc-shaped grooves 702 generate a radial pushing and pulling force on the actuating rod 609, forcing the actuating rod 609 to drive the T-shaped slider 604 to slide radially along the T-shaped groove 603 on the annular seat 602. When the T-shaped slider 604 slides, it drives the arc-shaped shaping block 606 to simultaneously contract radially inward or expand radially through the inner diameter rod 605.

[0046] When the gear ring 701 rotates forward, each arc-shaped groove 702 synchronously pushes each actuating rod 609 to slide radially inward, causing each arc-shaped shaping block 606 to synchronously move towards the center. The inner diameter of the shaping channel gradually decreases, thereby applying radial compression force to the nickel-titanium wire passing through it, achieving the shaping effect. When the gear ring 701 rotates in the reverse direction, each arc-shaped shaping block 606 synchronously expands outward, increasing the inner diameter of the shaping channel, reducing the compression on the nickel-titanium wire or completely releasing the nickel-titanium wire. Since each arc-shaped shaping block 606 is synchronously driven by the same gear ring 701 through the arc-shaped groove 702, the radial displacement of each arc-shaped shaping block 606 is relatively consistent, ensuring that the shaping channel always remains coaxial with the nickel-titanium wire, avoiding problems such as bending or uneven cross-section of the nickel-titanium wire caused by eccentricity.

[0047] During the subsequent continuous stretching process of the nickel-titanium wire, the inner arc surface of the arc-shaped shaping block 606 forms a uniform annular contact pressure band with the surface of the nickel-titanium wire. As the nickel-titanium wire continuously passes through the shaping channel under external traction, the uniform radial pressure applied to the surface of the nickel-titanium wire by the arc-shaped shaping block 606 effectively eliminates ellipticity deviations, minor surface irregularities, or scratches generated during the initial processing, making the cross-section of the nickel-titanium wire tend towards a standard circle, while improving surface smoothness. Operators can adjust the radial position of the arc-shaped shaping block 606 by controlling the rotation angle of the second motor 329 according to the target diameter and material properties of the nickel-titanium wire, thereby achieving quantitative control of the shaping compression amount and meeting the shaping requirements of nickel-titanium wires of different specifications.

[0048] Two shaping mechanisms 2 are respectively set on both sides of the stretching mechanism 1, forming a stretching process layout of "pre-shaping - lubrication, cleaning and wiping - final shaping". The front shaping mechanism 2 performs preliminary shaping on the nickel-titanium wire, so that the nickel-titanium wire enters the lubrication, cleaning and wiping area with a relatively regular cross-sectional shape, which facilitates full contact between the wiping cotton 403 and the surface of the nickel-titanium wire and improves the uniformity of cleaning; the rear shaping mechanism 2 performs final fine shaping on the nickel-titanium wire after wiping to ensure that the cross-sectional dimensions and roundness of the output nickel-titanium wire meet the requirements of the final product.

[0049] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0050] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0053] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A titanium wire stretching device for nickel-titanium wire processing, comprising a stretching mechanism (1) and two shaping mechanisms (2) fixedly mounted on the stretching mechanism (1), characterized in that: The stretching mechanism (1) includes a threading component (3), a wiping component (4) rotatably fitted on the threading component (3), and a liquid dispensing component (5) reciprocally slidingly fitted on the threading component (3). The threading component (3) includes a positioning frame (301). The positioning frame (301) has fixing holes (302) that are fixedly connected to two shaping mechanisms (2) on its two outer sides. An annular frame (303) is fixed on one inner side of the positioning frame (301) and is coaxial with the fixing holes (302). Two threaded posts (304) are fixed on one side of the annular frame (303). A positioning ring (305) coaxial with the annular frame (303) is inserted between the two threaded posts (304). Annular grooves (306) are opened on one end face of the annular frame (303) and the positioning ring (305). The wiping component (4) includes a rotating tube (401) rotatably fitted between two annular grooves (306). The outer wall of the rotating tube (401) is provided with a spiral groove (402), and a wiping cotton (403) is fixed inside. The outer wall of the rotating tube (401) is reciprocally slidably fitted with a reciprocating ring (404) coaxially arranged with the rotating tube (401). An extension rod (405) is fixed on the inner wall of the reciprocating ring (404), and a sliding ball (406) that slidably fits with the spiral groove (402) is fixed at the end of the extension rod (405).

2. The titanium stretching equipment for nickel-titanium wire processing according to claim 1, characterized in that: The positioning frame (301) has a transverse groove (307) through one outer side, and the reciprocating ring (404) has a vertical plate (407) fixed on its outer wall that reciprocates and slides with the transverse groove (307). The vertical plate (407) has a reciprocating groove (408) through one side. The positioning frame (301) has two L-shaped base plates (308) fixedly and symmetrically arranged near the bottom on one outer side. A first motor (309) is fixed on one outer side of one L-shaped base plate (308), and a first sprocket (310) is rotatably fitted on the inner wall of the other L-shaped base plate (308) through a rotating shaft. The output shaft of the first motor (309) is located inside one L-shaped base plate (308) and a second sprocket (311) is fixed thereon. A transmission chain (312) is fixed between the first sprocket (310) and the second sprocket (311).

3. The titanium material stretching equipment for nickel-titanium wire processing according to claim 2, characterized in that: The first sprocket (310) has a rotating rod (313) fixed at its end, and a rotating plate (314) is fixed at the end of the rotating rod (313). A reciprocating lever (315) is fixed on the side of the rotating plate (314) and slides back and forth with the reciprocating groove (408).

4. The titanium stretching equipment for nickel-titanium wire processing according to claim 2, characterized in that: The positioning frame (301) is fixed with a first top plate (316) on its top surface. A tapered liquid storage tube (317) extending downward is fixed through the top of the first top plate (316). A first flow tube (318) is connected to the top of the tapered liquid storage tube (317). A first vertical groove (319) is opened through the outer side of the positioning frame (301) below the first top plate (316). A first guide rod (320) is fixed at the bottom of the first top plate (316) outside the positioning frame (301).

5. The titanium stretching equipment for nickel-titanium wire processing according to claim 4, characterized in that: The liquid outlet component (5) includes a sliding base plate (501) that reciprocates and slides on the first vertical groove (319). The sliding base plate (501) slides through the first guide rod (320), and a first spring (502) is fixed between the sliding base plate (501) and the first top plate (316) and sleeved on the first guide rod (320).

6. The titanium stretching equipment for nickel-titanium wire processing according to claim 5, characterized in that: The sliding base plate (501) is fixed with a lifting base plate (503) on one side outside the positioning frame (301). The sliding base plate (501) is fixed with a conical discharge pipe (504) inside the conical liquid storage pipe (317) on the other side opposite to the positioning frame (301). The discharge end of the conical discharge pipe (504) is provided with a through ring (505). The top of the conical discharge pipe (504) is fixed with a turbulence auger (506) inside the conical discharge pipe (504). Several discharge slots (507) are opened through the outer periphery of the conical discharge pipe (504) near the top. An elastic expansion sealing sleeve is fixed between the discharge end of the conical discharge pipe (504) and the outer periphery of the conical liquid storage pipe (317). The output shaft of the first motor (309) is fixed with a rotating cam (321) that contacts the bottom of the lifting base plate (503). A speed ratio adjustment gearbox is detachably connected between the output shaft of the first motor (309) and the rotating cam (321).

7. The titanium stretching equipment for nickel-titanium wire processing according to claim 6, characterized in that: The inner wall of the positioning frame (301) is rotatably fitted with two fixed pulleys (322) arranged symmetrically through a rotating shaft. The top of the positioning frame (301) has two downwardly extending second vertical grooves (323). A lifting frame (324) is slidably fitted between the two second vertical grooves (323). One side of the lifting frame (324) is located inside the positioning frame (301) and is rotatably fitted with two adjusting pulleys (325) arranged symmetrically through a rotating shaft. An L-shaped support plate (326) is fixed on the outer wall of the positioning frame (301) between two second vertical grooves (323). A telescopic cylinder (327) is fixed at the bottom of the L-shaped support plate (326). The telescopic end of the telescopic cylinder (327) is fixedly connected to the bottom of the lifting frame (324). A second guide rod (335) is fixed at the bottom of the L-shaped support plate (326). A guide sleeve (336) that slides through the second guide rod (335) is fixed on one side of the lifting frame (324). The inner wall of the positioning frame (301) is fixed with a second top plate (331) between two second vertical grooves (323). A downwardly extending cleaning pipe (332) is fixed through the top of the second top plate (331). A cleaning nozzle (333) is provided at the bottom of the cleaning pipe (332). A second flow pipe (334) is connected to the top of the cleaning pipe (332).

8. The titanium stretching equipment for nickel-titanium wire processing according to claim 1, characterized in that: The shaping mechanism (2) includes a positioning component (6) and a rotating component (7) rotatably fitted on the positioning component (6); The positioning component (6) includes a fixing ring (601) fixedly connected inside the fixing hole (302), and an annular seat (602) is fixed on the top of the fixing ring (601). The top of the annular seat (602) is provided with several T-shaped grooves (603).

9. The titanium stretching equipment for nickel-titanium wire processing according to claim 8, characterized in that: Each of the T-slots (603) has a sliding T-slider (604) inside it. Each of the T-sliders (604) has an inner diameter rod (605) fixed on its side. The ends of the inner diameter rods (605) are located inside the annular seat (602) and have an arc-shaped shaping block (606) fixed thereon. The ends of the annular seat (602) have a number of arc-shaped blocks (607) fixed thereon. The tops of the arc-shaped blocks (607) have a bearing ring (608) fixed thereon.

10. The titanium stretching equipment for nickel-titanium wire processing according to claim 9, characterized in that: Each of the aforementioned T-shaped sliders (604) has a toggle lever (609) fixed to its top. The rotating component (7) includes a gear ring (701) that is rotatably fitted on a bearing ring (608) via a bearing. The top of the gear ring (701) has several arc-shaped grooves (702) that are slidably fitted with several actuating rods (609). The positioning frame (301) has two symmetrically arranged motor mounting plates (328) fixed on one outer side. A second motor (329) is fixed on the side of each of the two motor mounting plates (328). The output shaft of the second motor (329) is fixed with a rotating gear (330) that meshes with the gear ring (701).

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