Wire drawing system with pay-off power

Abstract

The utility model relates to a wire drawing system with pay-off power, which comprises a pay-off machine, a wire drawing machine and a take-up machine, the pay-off machine comprises a rack adjustably arranged on one side wall of the wire drawing machine, and a pay-off device, a guide device and a tension device which are arranged on the rack; the pay-off device comprises a pay-off motor and a clamping mechanism, and a pay-off wheel wound with a wire is detachably arranged on the clamping mechanism; the guide device comprises a guide piece I with a guide wheel and a guide piece II with two guide wheels; the tension device comprises a tension wheel arranged on the rack in an up-down swinging mode and a sensor used for monitoring the swinging angle of the tension wheel. And a wire on the pay-off wheel is led out to sequentially wind the guide wheel on the first guide piece, one guide wheel on the second guide piece, the tension wheel, the other guide wheel on the second guide piece and the other guide wheel, and then is led into the wire drawing machine. According to the utility model, active pay-off can be realized, and the pay-off machine, the wire drawing machine and the take-up machine are linked and matched, so that stable drawing of superfine wires can be realized.

Description

Technical Field

[0001] This utility model relates to the field of wire drawing technology, and in particular to a wire drawing system with its own wire feeding power. Background Technology

[0002] High, medium, and low carbon steel wires are typically drawn using a tower-type water tank wire drawing machine, which can produce steel wires of various diameters. This equipment usually consists of a pay-off frame, a drawing machine, and a take-up machine. The drawing machine contains multiple tower wheels and dies arranged in a specific pattern. The tower wheels are connected by chain or belt drive, and a single motor enables their synchronous operation. I-beams carrying steel wire are arranged on the pay-off frame. The steel wire is introduced into the drawing machine, shuttles back and forth between different tower wheels, and passes through the dies, thus achieving the wire drawing operation. For example, the multi-pass high-speed water tank wire drawing machine disclosed in patent publication number CN2925663Y includes a frame, a wire feeding mechanism mounted on the left side of the frame, a take-up mechanism mounted on the right side of the frame, and others.

[0003] The steel wire undergoes multiple consecutive drawing passes to achieve single-pass drawing and is ultimately wound up by the take-up machine. The mold and pulley are cooled by immersion, meaning they are submerged in coolant; similarly, the running steel wire is also placed in coolant. The drawing equipment described above uses the running pulley to actively pull the steel wire on the pay-off frame for release; that is, the I-beams on the pay-off frame are passively rotating for pay-off. Because the steel wire has a relatively thick diameter, it can resist the drawing force of the drawing equipment without breaking, thus allowing for passive release. However, for some thinner wires, passive release can easily lead to breakage, necessitating active release of the wire in conjunction with the active movement of the pulley. Summary of the Invention

[0004] To address the problem that conventional wire drawing equipment struggles to draw excessively thin wires, this invention provides a wire drawing system with its own wire feeding power. By creating a wire feeding machine based on the wire drawing machine, it can achieve active wire feeding and, in conjunction with the active traction of the wire drawing machine, thus enabling the drawing of excessively thin wires.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The wire drawing system with its own wire feeding power includes a wire feeding machine, a wire drawing machine, and a wire take-up machine. The wire is drawn out by the wire feeding machine, passes through the wire drawing machine, and is then wound onto the wire take-up machine. The wire feeding machine includes a frame that is adjustable on one side wall of the wire drawing machine, as well as a wire feeding device, a guiding device, and a tension device that are mounted on the frame. This allows for easy adjustment of the frame's position, and the three devices move together with the frame.

[0007] The wire drawing machine has a strip-shaped hole on one side wall for wire feeding, which facilitates the horizontal movement of the wire within the strip-shaped hole and the matching of different dies. The frame moves horizontally within the range of the strip-shaped hole, changing the position of the entire wire feeding machine. A guide wheel is adjustablely installed on one side wall of the wire drawing machine. The guide wheel corresponds to the strip-shaped hole, which facilitates the accurate guidance of the wire into the strip-shaped hole.

[0008] The wire feeding device includes a wire feeding motor and a clamping mechanism controlled by the wire feeding motor, which facilitates driving the clamping mechanism to operate. The clamping mechanism is detachably equipped with a wire feeding wheel wound on it, and the clamping mechanism can easily drive the wire feeding wheel to operate together. The clamping mechanism can be adapted to wire feeding wheels of different lengths.

[0009] The guiding device includes a guide component one with one guide wheel and a guide component two with two guide wheels. The guide component one is arranged above the wire feeding wheel, and the guide component two is arranged between the wire feeding wheel and the guide component one. The guide component one and the guide component two are staggered vertically.

[0010] The tension device includes a tension wheel that swings up and down on the frame and a sensor for monitoring the swing angle of the tension wheel. The tension wheel is arranged below the second guide. The sensor is connected to the pay-off motor, the wire drawing machine and the take-up machine through a frequency converter, which facilitates the linkage control of the three machines. That is, the sensor is connected to the frequency converter, which is connected to the pay-off motor, the wire drawing machine and the take-up machine respectively. The signal monitored by the sensor is transmitted to the frequency converter, which controls the start-up and running speed of the three machines.

[0011] The wire on the pay-off reel is led out and sequentially wound around the guide wheel on the first guide, one guide wheel on the second guide, the tension wheel, another guide wheel on the second guide, and the guide wheel before being introduced into the wire drawing machine, so that the wire can be wound around on the pay-off machine along a certain path.

[0012] Furthermore, the strip-shaped holes are arranged horizontally, and a mounting base is bolted to one side wall of the wire drawing machine. The mounting base has an adjustment vertical hole, and the bolt passes through the adjustment vertical hole and is threaded to the side wall of the wire drawing machine. The mounting base slides up and down along the side wall of the wire drawing machine to facilitate adjustment of the height position of the mounting base.

[0013] The mounting base is provided with a mounting shaft, the axial direction of which is consistent with the length direction of the strip hole. The guide wheel is rotatably mounted on the mounting shaft, which improves the smoothness of the guide wheel's operation. The guide wheel is movably arranged along the axial direction of the mounting shaft, which facilitates the movement of the guide wheel on the mounting shaft. The guide wheel moves horizontally in a straight line within the range of the strip hole.

[0014] Furthermore, a fixing plate is provided on one side wall of the wire drawing machine, and the fixing plate is arranged at intervals below the strip holes;

[0015] The frame is narrow at one end and wide at the other. The narrow end of the frame is attached to the fixed plate, and an adjustment horizontal hole is provided on the narrow end of the frame. The frame is connected and fixed by bolts. The bolts pass through the adjustment horizontal hole and are threadedly connected to the fixed plate, which facilitates the lateral movement of the frame. An adjustment bolt for adjusting the horizontal position of the frame is also provided between the fixed plate and the narrow end of the frame. The adjustment bolt is rotatably mounted on the fixed plate and is threadedly connected to the narrow end of the frame, which facilitates the movement of the frame by adjusting the bolt.

[0016] Furthermore, the clamping mechanism includes a wire feeding shaft, a clamping disc, and a clamping nut. The wire feeding shaft is rotatably mounted on one side of the frame via a bearing seat, and the wire feeding motor is mounted on the other side of the frame. The wire feeding motor is a servo motor, and a coupling is provided between the wire feeding motor and the wire feeding shaft to facilitate power transmission.

[0017] Two clamping discs are mounted on the wire feeding shaft. The two clamping discs are arranged symmetrically, and the wire feeding wheel is arranged between the two clamping discs to facilitate the bearing and support of the wire feeding wheel. The wire feeding wheel is sleeved on the wire feeding shaft, and the end of the wire feeding shaft is threaded with the clamping nut. The clamping nut is pressed tightly against the end face of one of the clamping discs to prevent the wire feeding wheel from disengaging.

[0018] Furthermore, both guide component one and guide component two include a guide shaft, a mounting plate, and a limiting ring. The mounting plate is provided at one end of the guide shaft, and the mounting plate is bolted to the frame. The guide shaft is fixed to the frame through the mounting plate. Two limiting rings for limiting the position of the guide wheel are provided on the guide shaft. The limiting rings pass through the guide shaft, and limiting screws are threaded onto the limiting rings. The limiting screws radially pass through the limiting rings and abut against the guide shaft to facilitate the fixing of the limiting rings. The axial direction of the guide shaft is consistent with the axial direction of the pay-off wheel.

[0019] Furthermore, the line connecting the guide shafts in guide one and guide two and the wire feeding wheel forms a triangle. The distance A between the guide shafts of guide two and guide one is less than the distance B between the guide shaft of guide one and the wire feeding wheel. The line connecting the guide shaft of guide one and the wire feeding wheel forms an angle C with the line connecting the guide shafts of guide one and guide two. The angle C ranges from 55° to 65°.

[0020] Furthermore, the guide wheel on the guide member is called guide wheel one. The guide wheel one is rotatably mounted on the guide shaft, and the two limiting rings cooperate to clamp the guide wheel one, which facilitates fixing the position of the guide wheel one.

[0021] The two guide wheels on the guide member 2 are the inner guide wheel 2 and the outer guide wheel 2, which are arranged side by side and rotate on the guide shaft. Two limiting rings cooperate to clamp the inner guide wheel 2 and the outer guide wheel 2.

[0022] Furthermore, the guide wheel and the pay-off wheel are vertically aligned at their midpoints, and the lines connecting the two ends of the guide wheel and the pay-off wheel are arranged in an isosceles triangle to prevent the wire from contacting the edge of the guide wheel and causing the plating on the wire surface to wear off.

[0023] The first guide wheel and the second inner guide wheel are arranged on the same vertical plane, and the second outer guide wheel, the tension wheel and the guide wheel are arranged on the same vertical plane;

[0024] The wire on the feed roller is led out and successively wound around the first guide roller, the second inner guide roller, the tension roller, the second outer guide roller, and the guide roller before being introduced into the wire drawing machine.

[0025] Furthermore, the tension device also includes a mounting rod, a tension rod, and an eccentric wheel. The mounting rod is rotatably connected to the frame via a bearing seat and passes through the bearing seat. The axial direction of the mounting rod is consistent with the axial direction of the pay-off wheel. The eccentric wheel is provided at one end of the mounting rod to facilitate the rotation of the eccentric wheel. The sensor is also provided on the frame, pointing towards the eccentric wheel to monitor its rotation. The tension rod is provided at the other end of the mounting rod and is arranged perpendicular to the mounting rod. The tension wheel is rotatably mounted at the end of the tension rod.

[0026] The frame is also provided with limiting cylinders arranged at intervals. The tension rod swings up and down between two of the limiting cylinders. The center of the tension rod swings and the line connecting the two limiting cylinders forms an angle D, which is in the range of 30-60°.

[0027] The beneficial effects of this utility model through the above technical solution are:

[0028] This utility model features a reasonable structural design. Based on the existing tower wheel type water tank wire drawing machine, it optimizes and modifies the wire feeding method, proposing a self-powered, actively feeding wire into the wire drawing machine. The feeding machine is installed on the side wall of the wire drawing machine, with a compact structure that does not occupy excessive production space. The installation position of the feeding machine is adjustable, and the side wall of the wire drawing machine has slotted holes for wire inlet, allowing the feeding machine to be installed at different positions corresponding to these holes. It can flexibly move its position according to the wire specifications and select the corresponding die for drawing, making operation flexible.

[0029] In this invention, the guide wheel is positioned far from the feed wheel and in the middle of the feed wheel, meaning the distance between the guide wheel and both ends of the feed wheel is equal. This ensures that during feed, the wire oscillates back and forth on the feed wheel without contacting or rubbing against the edge of the guide wheel, preventing the plating on the wire surface from peeling off. The clamping disc spacing is adjustable, facilitating the installation of feed wheels of different lengths. Furthermore, the position of the guide wheel on the guide shaft can be adjusted, ensuring that the guide wheel is always positioned in the middle of the feed wheel.

[0030] The tension rod in this invention's tension device drives the tension wheel to swing up and down. This swinging motion improves uneven tension during wire feeding, ensuring basic stability and maintaining optimal tension in the wire. The up-and-down swinging of the tension rod is converted into the rotational motion of the mounting rod, which in turn drives the eccentric wheel to rotate. The sensor monitors the rotation of the eccentric wheel and then controls the operating speed of the wire feeding machine, wire drawing machine, and wire take-up machine in a coordinated manner. This allows for real-time adjustment of the equipment's operating speed based on the wire tension, ensuring constant tension. Attached Figure Description

[0031] Figure 1 This is a front view of the wire drawing system with built-in wire feeding power of this utility model. The arrows in the figure indicate the wire winding path.

[0032] Figure 2 This is a rear view of the wire drawing system with built-in wire feeding power of this utility model. The wire is not shown in the figure, so the tension bar falls naturally and the tension wheel is shown.

[0033] Figure 3 This is a top view of the wire drawing system with built-in wire feeding power of this utility model.

[0034] Figure 4 This utility model relates to a wire drawing system with built-in wire feeding power. Figure 3 Sectional view of the frame installation in the middle AA direction.

[0035] Figure 5 This is a cross-sectional view of the wire feeding device of the wire drawing system with self-powered wire feeding, with the wire feeding wheel omitted in the figure.

[0036] Figure 6 This is a schematic diagram of the tension device of the wire drawing system with built-in wire feeding power of this utility model.

[0037] Figure 7 This is a schematic diagram of the tension rod installation of the wire drawing system with built-in wire feeding power according to this utility model.

[0038] The attached diagram is labeled as follows: 1. Wire feeding machine, 2. Wire drawing machine, 3. Frame, 4. Strip hole, 5. Fixing plate, 6. Adjusting horizontal hole, 7. Adjusting bolt, 8. Nut, 9. Wire feeding motor, 10. Clamping mechanism, 101. Wire feeding shaft, 102. Clamping plate, 103. Clamping nut, 11. Coupling, 12. Positioning plate, 13. Wire feeding wheel, 14. Guide component one, 141. Guide shaft, 142. Mounting plate, 143. Limiting ring, 15. Guide component two, 16. Limiting screw, 17. Guide wheel one, 18. Inner guide wheel two, 19. Outer guide wheel two, 20. Tension wheel, 21. Sensor, 22. Mounting rod, 23. Tension rod, 24. Eccentric wheel, 25. Mounting block, 26. Mounting bolt, 27. Limiting cylinder, 28. Guide wheel, 29. Mounting seat, 30. Adjusting vertical hole, 31. Mounting shaft. Detailed Implementation

[0039] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0040] like Figures 1-7 As shown, the wire drawing system with its own wire feeding power includes a wire feeding machine 1, a wire drawing machine 2, and a wire take-up machine. The wire drawing machine 2 is a tower wheel type water tank wire drawing machine. The wire drawn from the wire feeding machine 1 passes through the wire drawing machine 2 and is then wound onto the wire take-up machine. The wire feeding machine 1 realizes automatic wire feeding, the wire drawing machine 2 is used to perform multiple drawing operations on the wire, and the wire take-up machine is used to take up and arrange the wire after drawing to the required diameter, thereby completing the wire drawing process. The wire take-up machine is not shown in the figure.

[0041] In this embodiment, the wire feeding machine 1 is installed on the side wall of the wire drawing machine 2, which saves space in the production area and does not affect the normal operation of other production equipment. It also offers more convenient operation and a larger operating space. The wire feeding machine 1 includes a frame 3 adjustablely mounted on one side wall of the wire drawing machine 2, and a wire feeding device, a guiding device, and a tensioning device mounted on the frame 3, such as… Figure 1 and Figure 2 As shown. The position of frame 3 is adjustable, and thus the wire feeding device, guiding device, and tensioning device move together with frame 3. Since the wire input specifications are different and the required output specifications are also different, the position of wire feeding machine 1 can be moved to match the dies at different positions within wire drawing machine 2.

[0042] A strip-shaped hole 4 for wire feeding is provided on one side wall of the wire drawing machine 2. The strip-shaped hole 4 is arranged horizontally to provide a certain space for the wire to pass through. The frame 3 moves horizontally within the range of the strip-shaped hole 4, and the wire drawn out by the wire feeding machine 1 enters the wire drawing machine 2 after passing through the strip-shaped hole 4. The wire can move laterally within the range of the strip-shaped hole 4.

[0043] During installation, a fixing plate 5 is installed on one side wall of the wire drawing machine 2. The fixing plate 5 is fixed by welding and is spaced apart below the strip-shaped holes 4. The frame 3 is narrow at one end and wide at the other. The narrow end of the frame 3 is attached to the fixing plate 5, and there are two adjustment holes 6 on the narrow end of the frame 3. The adjustment holes 6 are elongated and are located at the top and bottom. The frame 3 is connected and fixed to the fixing plate 5 by bolts. Specifically, the bolts pass through the adjustment holes 6 and are threaded into the fixing plate 5. Tightening the bolts fixes the frame 3. Once the bolts are loosened, the narrow end of the frame 3 is no longer in close contact with the fixing plate 5, allowing the frame 3 to move back and forth, changing the position of the frame 3 relative to the strip-shaped holes 4. This allows the wire feeding machine 1 to correspond to different molds.

[0044] To facilitate the movement of the frame 3, an adjusting bolt 7 is provided between the fixed plate 5 and the narrow end of the frame 3 for adjusting the horizontal position of the frame 3. The axial direction of the adjusting bolt 7 is consistent with the length direction of the adjusting horizontal hole 6 and the strip hole 4.

[0045] The adjusting bolt 7 is rotatably mounted on the fixed plate 5. Two nuts 8 are arranged on the adjusting bolt 7, and the fixed plate 5 is held in place by the two nuts 8. Thus, the adjusting bolt 7 can only rotate on the fixed plate 5 and cannot move axially. On this basis, the adjusting bolt 7 is threadedly connected to the narrow end of the frame 3. In this way, rotating the adjusting bolt 7 can move the frame 3 relative to the fixed plate 5. Alternatively, the adjusting bolt 7 can be omitted. The bolt in the adjusting transverse hole 6 can be loosened and the frame 3 can be moved manually. After moving, the bolt can be tightened to fix the frame. Finally, the nuts 8 and the adjusting bolt 7 are tightened to restrict the frame 3 and prevent it from moving.

[0046] The wire feeding device is used to actively release the wire and is located at the lower wide end of the frame 3. The wire feeding device includes a wire feeding motor 9 and a clamping mechanism 10 controlled by the wire feeding motor 9. The wire feeding motor 9 is a servo motor and can drive the clamping mechanism 10 to run. The wire feeding motor 9 and the clamping mechanism 10 are arranged on both sides of the frame 3.

[0047] The clamping mechanism 10 includes a wire feeding shaft 101, a clamping plate 102, and a clamping nut 103. The wire feeding shaft 101 is rotatably mounted on one side of the frame 3 via a bearing seat, and the wire feeding shaft 101 passes through the bearing seat. A wire feeding motor 9 is mounted on the other side of the frame 3. A coupling 11 is provided between the wire feeding motor 9 and the wire feeding shaft 101 to realize the transmission of power. In turn, the wire feeding motor 9 drives the wire feeding shaft 101 to run through the coupling 11.

[0048] Two clamping discs 102 are mounted on the wire feeding shaft 101, and the two clamping discs 102 are arranged symmetrically, such as... Figure 5 As shown. The clamping disc 102 is a conical disc. A positioning disc 12 is provided on the pay-off shaft 101. The pay-off shaft 101 and the positioning disc 12 are integrally formed. One clamping disc 102 abuts against the positioning disc 12 and is bolted to the positioning disc 12, thereby fixing the position of the clamping disc 102. There is a gap between the two clamping discs 102. With the position of one clamping disc 102 fixed, the position of the other clamping disc 102 is adjustable. A clamping nut 103 is threadedly connected to the end of the pay-off shaft 101. The clamping nut 103 is a flange nut. The clamping nut 103 abuts against the end face of the other clamping disc 102, thereby restricting the clamping disc 102.

[0049] The clamping mechanism 10 is detachably equipped with a wire-feeding reel 13 wound with wire. That is, the wire-feeding reel 13 is arranged between the two clamping discs 102. The wire-feeding reel 13 is sleeved on the wire-feeding shaft 101. The wire-feeding reel 13 is an I-beam reel. When installing the wire-feeding reel 13, first remove the clamping disc 102 away from the frame 3, then sleeve the wire-feeding reel 13 on the wire-feeding shaft 101, with one end of the wire-feeding reel 13 abutting against the clamping disc 102 closest to the frame 3. Then, sleeve the previously removed clamping disc 102 on the wire-feeding shaft 101, and move the position of the clamping discs 102 to ensure that the two clamping discs 102 can restrict and support the wire-feeding reel 13. Finally, tighten the clamping nut 103 to fix the wire-feeding reel 13. Since the distance between the two clamping discs 102 is adjustable, different lengths of wire feeding wheels 13 can be installed on the clamping mechanism 10. The installed wire feeding wheels 13 are driven to rotate by the wire feeding motor 9 to realize active wire feeding operation.

[0050] The guiding device is used to guide the wire after active release, and is located at the wide end of the frame 3. The guiding device includes a guide member 14 with one guide wheel and a guide member 15 with two guide wheels. The guide member 14 is arranged above the wire feeding wheel 13, and both the guide member 14 and the guide member 15 include a guide shaft 141, a mounting plate 142, and a limiting ring 143.

[0051] A mounting plate 142 is provided at one end of the guide shaft 141. The mounting plate 142 is a cylindrical shape with a "T"-shaped cross-section. The end of the guide shaft 141 passes through the mounting plate 142 and is interference-fitted with the mounting plate 142 to fix the guide shaft 141. The mounting plate 142 penetrates the side wall of the frame 3 and is bolted to the frame 3. The guide shaft 141 is connected and fixed to the frame 3 through the mounting plate 142. The axial direction of the guide shaft 141 is consistent with the axial direction of the pay-off reel 13.

[0052] Two limiting rings 143 are provided on the guide shaft 141 to restrict the guide wheel. The limiting rings 143 pass through the guide shaft 141, and their positions on the guide shaft 141 are adjustable. To fix the limiting rings 143, a limiting screw 16 is threaded onto the limiting rings 143. The limiting screw 16 passes radially through the limiting rings 143 and abuts against the guide shaft 141. Tightening the limiting screw 16 fixes the limiting ring 143, and turning the limiting screw 16 adjusts the position of the limiting ring 143 on the guide shaft 141. The two limiting rings 143 clamp the guide wheel, thereby fixing its position and preventing axial movement.

[0053] Guide component 2 15 is arranged between the pay-off reel 13 and guide component 14. Guide component 14 and guide component 2 15 are staggered vertically, so the line connecting the guide shaft 141 of guide component 14 and guide component 2 15 to the pay-off reel 13 forms a triangle. The distance A between the guide shafts 141 of guide component 2 15 and guide component 14 is less than the distance B between the guide shaft 141 of guide component 14 and the pay-off reel 13. The line connecting the guide shaft 141 of guide component 14 and the pay-off reel 13 forms an angle C with the line connecting the guide shafts 141 of guide component 14 and guide component 2 15. The angle C ranges from 55° to 65°, preferably 60°.

[0054] Since guide component 14 has one guide wheel and guide component 2 15 has two guide wheels, here we define the guide wheel on guide component 14 as guide wheel 17. Guide wheel 17 is a V-grooved wheel with a bearing at its center. Guide wheel 17 is rotatably mounted on guide shaft 141, and two limiting rings 143 are used to clamp guide wheel 17 to prevent axial movement of guide wheel 17. Figure 3 As shown.

[0055] The fixed guide wheel 17 and the feed wheel 13 are vertically aligned at the middle. The lines connecting the two ends of the guide wheel 17 and the feed wheel 13 form an isosceles triangle. That is, the center distance F1 between the left end of the feed wheel 13 and the center of the guide wheel 17 is equal to the center distance F2 between the right end of the feed wheel 13 and the center of the guide wheel 17. In addition, the guide wheel 17 is far away from the feed wheel 13. In this way, when the wire is released back and forth on the feed wheel 13, the wire will not rub against the edge of the guide wheel 17, thus protecting the coating on the surface of the wire. At the same time, it can also prevent the running wire from detaching from the guide wheel 17, and the released wire will not fall off the guide wheel 17 when it swings back and forth on the feed wheel 13.

[0056] The two guide wheels on guide component 2 15 are inner guide wheel 2 18 and outer guide wheel 2 19. The structure of inner guide wheel 2 18 and outer guide wheel 2 19 is the same as that of guide wheel 1 17, and will not be described again here. The horizontal height of inner guide wheel 2 18 and outer guide wheel 2 19 is flush with the strip hole 4. Inner guide wheel 2 18 and outer guide wheel 2 19 are arranged side by side and rotate on guide shaft 141. Two limiting rings 143 cooperate to clamp inner guide wheel 2 18 and outer guide wheel 2 19, thereby preventing axial movement of inner guide wheel 2 18 and outer guide wheel 2 19. Guide wheel 1 17 and inner guide wheel 2 18 are arranged on the same vertical plane, while inner guide wheel 2 18 and outer guide wheel 2 19 are located on different vertical planes.

[0057] The tension device is used to control the tension during wire drawing and is located below the guide member 15. The tension device includes a tension wheel 20 that swings up and down on the frame 3 and a sensor 21 for monitoring the swing angle of the tension wheel 20. The tension device also includes a mounting rod 22, a tension rod 23, and an eccentric wheel 24, as shown below. Figure 6 and Figure 7 As shown.

[0058] Mounting rod 22 is rotatably connected to frame 3 via bearing housing. Mounting rod 22 passes through bearing housing, and its axial direction is aligned with that of pay-off reel 13. An eccentric wheel 24 is mounted at one end of mounting rod 22. A sensor 21, acting as a proximity switch, is also mounted on frame 3, pointing towards the eccentric wheel 24. When mounting rod 22 rotates, it drives the eccentric wheel 24 to rotate. The distance between the eccentric wheel 24 and sensor 21 varies during rotation. Based on the monitoring data from sensor 21, the rotation angle of mounting rod 22 can be determined, as can whether tension rod 23 is horizontal.

[0059] A tension rod 23 is provided at the other end of the mounting rod 22. During installation, a mounting block 25 is installed on the mounting rod 22. The upper end of the mounting block 25 is locked to the mounting rod 22 with bolts. After loosening the bolts, the position of the mounting block 25 on the mounting rod 22 is adjustable. The tension rod 23 passes through the lower end of the mounting block 25. A mounting bolt 26 is provided at the lower end of the mounting block 25. The mounting bolt 26 abuts against the side wall of the tension rod 23. Tightening the mounting bolt 26 can fix the tension rod 23. The tension rod 23 is arranged perpendicular to the mounting rod 22. The up-and-down swing of the tension rod 23 drives the mounting rod 22 to rotate.

[0060] A tension wheel 20 is rotatably mounted at the end of the tension rod 23. The tension wheel 20 is positioned below the guide wheel 15. During installation, the tension rod 23 is a bent L-shaped rod with a stepped shaft at its end. The tension wheel 20 is mounted at this end and secured with a flange nut to prevent it from falling off. The tension wheel 20 has the same structure as the guide wheel 17. The wire pulling tension can be adjusted linearly by swinging the tension rod 23, maintaining relative stability of the wire feed tension. During operation, poor wire routing may cause vibration. If the tension rod 23 is fixed in position, the wire may break. The up-and-down swinging of the tension rod 23 keeps the wire taut, preventing breakage due to vibration and ensuring the feed tension.

[0061] To limit the vertical swing range of the tension wheel 20, a series of locating cylinders 27 are arranged vertically on the frame 3. The tension rod 23 swings vertically between two locating cylinders 27. The line connecting the swing center of the tension rod 23 and the two locating cylinders 27 forms an angle D, which ranges from 30° to 60°.

[0062] In application, this invention allows for the selection of tungsten wire for drawing. Conventional tungsten wire drawing processes employ hot drawing, which involves heating the tungsten wire and drawing it step-by-step through a die to gradually reduce the wire diameter until the target diameter is achieved. However, hot drawing alters the internal structure of the tungsten wire, leading to a decrease in mechanical properties. Furthermore, maintaining consistency in the hot drawing process between tungsten wires is challenging, resulting in unstable quality and low production efficiency. Prolonged contact with air makes the surface of the tungsten wire prone to oxidation, leading to poor adhesion of subsequent coatings and easy coating peeling during cutting, affecting cutting efficiency and quality. Moreover, for excessively fine tungsten wires, hot drawing reduces stress, resulting in decreased strength and shortened lifespan. For example, hot drawing cannot be used to produce tungsten wires requiring an inlet diameter of 60μm and an outlet diameter of 32μm, and conventional wire drawing machines are insufficient to meet these requirements.

[0063] For this purpose, the tungsten wire can be cold-drawn. The tungsten wire is pre-wound onto the pay-off reel 13. During winding, the tungsten wire on the pay-off reel 13 is led out and sequentially wound around the guide wheel on guide member 14, one guide wheel on guide member 25, tension wheel 20, and another guide wheel on guide member 25, before passing through the strip hole 4 and being introduced into the wire drawing machine 2. Specifically, the tungsten wire on the pay-off reel 13 is led out and sequentially wound around guide wheel 17, inner guide wheel 28, tension wheel 20, and outer guide wheel 29, before passing through the strip hole 4 and being introduced into the wire drawing machine 2. After being drawn by the wire drawing machine 2, the wire is wound up by the take-up machine. Lubricating fluid is added to the wire drawing machine 2, and the die and tower wheel are immersed in it. After the equipment is started, the tungsten wire passes through multiple dies in sequence, with the diameter decreasing sequentially, until it is drawn into a tungsten wire of the required diameter.

[0064] During the cold drawing process of tungsten wire, the speed of the pay-off wheel 13 is matched with the speed of the drawing machine 2. That is, during the drawing period, the operating speed of the pay-off motor 9, the drawing machine 2, and the take-up machine are automatically adjusted according to the tension on the tungsten wire to keep the tension bar 23 basically in a horizontal position. When the tension bar 23 is in a horizontal position, the axes of the tension wheel 20 and the outer guide wheel 19 are on the same vertical line. The up and down swing of the tension bar 23 can balance the pulling force of the wire, ensure the optimal tension of the wire, and avoid damage to the wire.

[0065] Meanwhile, the tension change of the tungsten wire is reflected by the rotation of the mounting rod 22. The sensor 21 can monitor the rotation of the mounting rod 22. The sensor 21 is connected to the wire feeding motor 9, the wire drawing machine 2 and the wire take-up machine through the frequency converter. The monitoring of the sensor 21 can determine the tension of the wire, and then control the wire feeding machine 1, the wire drawing machine 2 and the wire take-up machine in a coordinated manner. By synchronously adjusting the operating speed of the three devices, the stability of the wire tension is ensured. That is, the rotation speed of the wire feeding wheel 13 is matched with the tension of the wire. In other words, the wire feeding motor 9 controls the wire feeding wheel 13 to run at the corresponding speed according to the tension of the wire, thereby ensuring that the wire is continuous and improving the stability of the wire quality.

[0066] It is important to note that when the tungsten wire is wound, it must be released from the pay-off reel 13 and then pass through the various devices of the pay-off machine 1. When the wire is tightened after passing over the tension wheel 20, the tension rod 23 swings upward. At this time, the sensor 21 detects the swing and controls the pay-off machine 1, the wire drawing machine 2, and the take-up machine to start running. This facilitates the pay-off of the wire and the subsequent wire drawing operation, enabling the pay-off machine 1 to actively pay off the wire and the wire drawing machine 2 to actively pull the wire.

[0067] To ensure the wire can pass through the slot 4, a guide wheel 28 is adjustable on one side wall of the wire drawing machine 2. The guide wheel 28 is adjustable in position and corresponds to the slot 4. Figure 4 As shown. Specifically, a mounting base 29 is bolted to one side wall of the wire drawing machine 2. The mounting base 29 has a T-shaped cross-section, and two adjustment vertical holes 30 are provided on the upper and lower sides of the mounting base 29. The bolts pass through the adjustment vertical holes 30 and are threaded to the side wall of the wire drawing machine 2. After tightening the bolts, the position of the mounting base 29 is fixed. After loosening the bolts, the mounting base 29 can slide up and down along the side wall of the wire drawing machine 2.

[0068] A mounting shaft 31 is provided on the mounting base 29. The axial direction of the mounting shaft 31 is consistent with the length direction of the strip hole 4. A guide wheel 28 is rotatably mounted on the mounting shaft 31. The guide wheel 28 and the first guide wheel 17 have the same shape but different diameters. The diameter of the guide wheel 28 is smaller than that of the first guide wheel 17. The guide wheel 28 is arranged to move axially along the mounting shaft 31 and moves horizontally within the strip hole 4. Here, the guide wheel 28 is also mounted on the mounting shaft 31 using a limit ring 143 to prevent the guide wheel 28 from moving axially on the mounting shaft 31. The second outer guide wheel 19, the tension wheel 20, and the guide wheel 28 are arranged on the same vertical plane. The wire after passing around the second outer guide wheel 19 first passes around the guide wheel 28 and then is accurately inserted into the strip hole 4.

[0069] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A wire drawing system with its own wire feeding power, comprising a wire feeding machine (1), a wire drawing machine (2), and a wire take-up machine, wherein the wire drawn from the wire feeding machine (1) passes through the wire drawing machine (2) and is then wound onto the wire take-up machine, characterized in that, The wire feeding machine (1) includes a frame (3) adjustable on one side wall of the wire drawing machine (2) and a wire feeding device, a guiding device and a tensioning device mounted on the frame (3); The wire drawing machine (2) has a strip hole (4) for wire feeding on one side wall. The frame (3) moves horizontally in a straight line within the range of the strip hole (4). A guide wheel (28) is adjustablely provided on one side wall of the wire drawing machine (2). The guide wheel (28) corresponds to the strip hole (4). The wire feeding device includes a wire feeding motor (9) and a clamping mechanism (10) controlled by the wire feeding motor (9). The clamping mechanism (10) is detachably equipped with a wire feeding wheel (13) on which wire is wound. The clamping mechanism (10) includes a wire feeding shaft (101), a clamping plate (102) and a clamping nut (103). The guiding device includes a guide component one (14) with one guide wheel and a guide component two (15) with two guide wheels. The guide component one (14) is arranged above the pay-off wheel (13). Both the guide component one (14) and the guide component two (15) include a guide shaft (141), a mounting plate (142) and a limiting ring (143). The guide component two (15) is arranged between the pay-off wheel (13) and the guide component one (14). The guide component one (14) and the guide component two (15) are staggered vertically. The tension device includes a tension wheel (20) that swings up and down on the frame (3) and a sensor (21) for monitoring the swing angle of the tension wheel (20). The tension wheel (20) is arranged below the guide (15). The wire on the feed roller (13) is led out and successively passes through the guide roller on the first guide (14), one guide roller on the second guide (15), the tension roller (20), another guide roller on the second guide (15) and the guide roller (28) before being introduced into the wire drawing machine (2).

2. The wire drawing system with self-contained wire feeding power according to claim 1, characterized in that, The strip hole (4) is arranged horizontally. A mounting seat (29) is bolted to one side wall of the wire drawing machine (2). An adjustment vertical hole (30) is provided on the mounting seat (29). The bolt passes through the adjustment vertical hole (30) and is threaded to the side wall of the wire drawing machine (2). The mounting seat (29) slides up and down along the side wall of the wire drawing machine (2). The mounting base (29) is provided with a mounting shaft (31), the axial direction of the mounting shaft (31) is consistent with the length direction of the strip hole (4), the mounting shaft (31) is rotatably provided with a guide wheel (28), the guide wheel (28) is movably arranged along the axial direction of the mounting shaft (31), and the guide wheel (28) moves horizontally in a straight line within the range of the strip hole (4).

3. The wire drawing system with self-contained wire feeding power according to claim 1, characterized in that, A fixing plate (5) is provided on one side wall of the wire drawing machine (2), and the fixing plate (5) is arranged at intervals below the strip hole (4); The frame (3) is narrow at one end and wide at the other end. The narrow end of the frame (3) is attached to the fixing plate (5). An adjustment horizontal hole (6) is provided on the narrow end of the frame (3). The frame (3) is connected and fixed by bolts to the fixing plate (5). The bolts pass through the adjustment horizontal hole (6) and are threadedly connected to the fixing plate (5). An adjustment bolt (7) for adjusting the horizontal position of the frame (3) is also provided between the fixing plate (5) and the narrow end of the frame (3). The adjustment bolt (7) is rotatably set on the fixing plate (5) and is threadedly connected to the narrow end of the frame (3).

4. The wire drawing system with self-contained wire feeding power according to claim 1, characterized in that, The wire feeding shaft (101) is rotatably mounted on one side of the frame (3) via a bearing seat, and the wire feeding motor (9) is mounted on the other side of the frame (3). The wire feeding motor (9) is a servo motor, and a coupling (11) is provided between the wire feeding motor (9) and the wire feeding shaft (101). Two clamping discs (102) are mounted on the wire feeding shaft (101). The two clamping discs (102) are arranged symmetrically. The wire feeding wheel (13) is arranged between the two clamping discs (102). The wire feeding wheel (13) is sleeved on the wire feeding shaft (101). The end of the wire feeding shaft (101) is threaded with the clamping nut (103). The clamping nut (103) is pressed against the end face of one of the clamping discs (102).

5. A wire drawing system with self-contained wire feeding power according to claim 1, characterized in that, The guide shaft (141) is provided with a mounting plate (142) at one end. The mounting plate (142) and the frame (3) are bolted together. The guide shaft (141) is fixed to the frame (3) through the mounting plate (142). The guide shaft (141) is provided with two limiting rings (143) for limiting the guide wheel. The limiting rings (143) are inserted through the guide shaft (141). The limiting rings (143) are threaded with limiting screws (16). The limiting screws (16) pass radially through the limiting rings (143) and abut against the guide shaft (141).

6. A wire drawing system with self-contained wire feeding power according to claim 5, characterized in that, The line connecting the guide shaft (141) in guide one (14) and guide two (15) and the line feeding wheel (13) forms a triangle. The distance A between the guide shaft (141) of guide two (15) and guide one (14) is less than the distance B between the guide shaft (141) of guide one (14) and the line feeding wheel (13). The line connecting the guide shaft (141) of guide one (14) and the line feeding wheel (13) forms an angle C with the line connecting the guide shaft (141) of guide one (14) and guide two (15). The angle C ranges from 55° to 65°.

7. A wire drawing system with self-contained wire feeding power according to claim 5, characterized in that, The guide wheel on the guide component (14) is the guide wheel (17). The guide wheel (17) is rotatably mounted on the guide shaft (141), and the two limiting rings (143) cooperate to clamp the guide wheel (17). The two guide wheels on the guide member 2 (15) are the inner guide wheel 2 (18) and the outer guide wheel 2 (19). The inner guide wheel 2 (18) and the outer guide wheel 2 (19) are arranged in parallel and rotate on the guide shaft (141). The two limiting rings (143) cooperate to clamp the inner guide wheel 2 (18) and the outer guide wheel 2 (19).

8. A wire drawing system with self-contained wire feeding power according to claim 7, characterized in that, The guide wheel (17) and the line feeding wheel (13) are vertically aligned in the middle, and the lines connecting the two ends of the guide wheel (17) and the line feeding wheel (13) are arranged in an isosceles triangle. The first guide wheel (17) and the second inner guide wheel (18) are arranged on the same vertical plane, and the second outer guide wheel (19), the tension wheel (20) and the guide wheel (28) are arranged on the same vertical plane; The wire on the feed wheel (13) is led out and passes through the first guide wheel (17), the second inner guide wheel (18), the tension wheel (20), the second outer guide wheel (19) and the guide wheel (28) in sequence, and then passes through the strip hole (4) and is introduced into the wire drawing machine (2).

9. A wire drawing system with self-contained wire feeding power according to claim 1, characterized in that, The tension device also includes a mounting rod (22), a tension rod (23), and an eccentric wheel (24). The mounting rod (22) is rotatably connected to the frame (3) through a bearing seat. The mounting rod (22) passes through the bearing seat. The axial direction of the mounting rod (22) is consistent with the axial direction of the wire feeding wheel (13). The eccentric wheel (24) is provided at one end of the mounting rod (22). The sensor (21) is also provided on the frame (3). The sensor (21) points to the eccentric wheel (24). The tension rod (23) is provided at the other end of the mounting rod (22). The tension rod (23) is arranged perpendicular to the mounting rod (22). The tension wheel (20) is rotatably provided at the end of the tension rod (23). The frame (3) is also provided with limiting cylinders (27) arranged at intervals. The tension rod (23) swings up and down between the two limiting cylinders (27). The line connecting the swing center of the tension rod (23) and the two limiting cylinders (27) forms an angle D, which is 30-60°.

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