Rotary titanium and titanium alloy wire drawing device

Abstract

The utility model relates to metal processing technical field discloses rotary titanium and titanium alloy wire rod drawing device, including setting in proper order pay -off rack, straightening wheel mechanism, lubricating mechanism, annealing furnace and the wire drawing machine that carries out drawing to metal wire, and the pay -off rack is rotationally equipped with the pay -off reel for paying out metal line, and the lubricating mechanism includes the spraying device, and the spraying device is equipped with the perforation for the metal wire to pass through, and the inner wall of perforation is equipped with a plurality of sprayers for spraying lubricant in the circumferential direction, to solve the quality problem such as big precision fluctuation, surface defect in titanium alloy wire rod hot drawing process.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology, specifically to a rotary titanium and titanium alloy wire drawing device. Background Technology

[0002] Titanium alloys, due to their high specific strength, good biocompatibility, excellent corrosion resistance, and fatigue resistance, have demonstrated significant application value in high-end fields such as aerospace and biomedicine. In recent years, titanium alloy products have also gradually expanded into the civilian sector, especially with the demand for their wire products increasing year by year. For example, they have become a core material for wires used in eyeglass frames and 3C electronics manufacturing.

[0003] One of the mainstream processing methods for titanium alloy wire is hot drawing. The wire is heated online to improve its plasticity and reduce the drawing resistance. Then, it is passed through a wire drawing die (with a tapered hole structure and rigidly fixed in the die base) to reduce the diameter in one pass. Commonly used hot drawing equipment still suffers from drawbacks such as high die wear, difficulty in lubrication control, and low dimensional accuracy. For example, Chinese patent document CN216989229U discloses a magnesium alloy ultrafine wire production equipment. It is designed with a drawing assembly including a first drawing unit, a first processing unit, a second drawing unit, and a second processing unit arranged sequentially along the production line. The wire, after being heated once, is drawn through the first drawing unit under the action of lubricating grease. The wire, after being heated again, is drawn through the second drawing unit under the action of lubricating grease. Because titanium alloys are highly chemically active at high temperatures, friction between the high-temperature wire and the die can easily lead to a metallurgical reaction, and metal tends to accumulate on the die surface, requiring frequent shutdowns for cleaning or die replacement. On the other hand, conventional lubricants are prone to oxidation or decomposition at high temperatures, leading to rupture of the lubricating film and adhesion between the titanium wire and the die, resulting in scratches and marks on the wire surface, forming continuous quality defects along the length of the wire. Utility Model Content

[0004] The present invention aims to provide a rotary titanium and titanium alloy wire drawing device to solve quality problems such as large precision fluctuations and surface defects in the hot drawing process of titanium alloy wire.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rotary titanium and titanium alloy wire drawing device, comprising a wire feeding frame, a straightening wheel mechanism, a lubrication mechanism, an annealing furnace, and a wire drawing device for drawing metal wires arranged in sequence. The wire feeding frame is rotatably equipped with a wire feeding wheel for feeding out the metal wire. The lubrication mechanism includes a spraying device with a through hole for the metal wire to pass through. The inner wall of the through hole is circumferentially equipped with several sprayers for spraying lubricant. The wire drawing device is symmetrically equipped with a die and a take-up wheel for the metal wire to pass through on both sides along the wire feeding direction of the wire feeding frame. The die is rotatably connected to the wire drawing device, and the rotation direction is parallel to the wire feeding direction. A second motor drives the die to rotate at a set speed.

[0006] The beneficial effects of this plan are: In this technical solution, the wire feeding frame is equipped with a rotating feeding wheel for feeding out the metal wire, which can achieve stable winding and uniform feeding of the metal wire, effectively reducing the twisting and vibration of the wire in the initial stage of drawing, helping to reduce radial vibration and eccentricity during the drawing process, and improving the quality of the wire entering the die. The inner wall of the perforation is circumferentially arranged with sprayers for spraying lubricant, which can form a stable and uniform lubricating film on the circumference of the metal wire during high-temperature drawing, significantly reducing the friction between the titanium and titanium alloy wire and the die, preventing defects such as scratches and pulls on the wire surface that extend along the length direction, and ensuring the consistency of the wire surface quality.

[0007] This invention utilizes the synergistic effect of a straightening wheel mechanism and an annealing furnace to effectively straighten and relieve stress on metal wires before drawing, thereby improving the dimensional accuracy and mechanical property stability of the wire. The rotatable connection between the die and the wire drawer ensures that lubricant is evenly coated on the wire surface, guaranteeing a smooth, black surface after drawing and preventing surface quality defects.

[0008] Preferably, as an improvement, a first motor is provided to drive the take-up reels to rotate. The take-up reels are all rotatably located on the side away from the annealing furnace. The rotation direction of the take-up reels is perpendicular to the wire feeding direction. The mold is provided with a drawing groove for the wire to pass through.

[0009] The beneficial effects are as follows: The first motor drives the take-up roller to rotate, ensuring constant speed and stable tension control during the winding process, which helps maintain a uniform wire diameter and surface quality. The take-up roller is located on the side away from the annealing furnace, allowing the wire to be annealed before drawing. The wire drawer has symmetrically arranged dies and take-up rollers on both sides along the wire feeding direction of the wire feeding frame. The same wire drawer can cooperate with two sets of wire feeding frames to improve drawing efficiency, further enhancing production continuity and capacity.

[0010] Preferably, as an improvement, the straightening wheel mechanism includes 5-7 guide wheels rotatably arranged on the same vertical plane, with adjacent guide wheels staggered vertically, and each guide wheel having a V-shaped wire-passing groove on its outer periphery for wire passage.

[0011] The beneficial effects are as follows: the guide wheels are arranged on the same vertical plane, which can ensure that the wire is subjected to uniform force when passing through, avoid deviation, and improve the straightening accuracy. The adjacent guide wheels are arranged in an alternating manner to form a multi-point bending and straightening path, which can effectively eliminate the bending stress and residual deformation of the wire, so that the wire has good straightness before entering the annealing furnace and wire drawing machine, which provides a guarantee for subsequent precision drawing and stable wire take-up.

[0012] Preferably, as an improvement, the annealing furnace is a tubular online annealing furnace with a length of 5-8m.

[0013] The beneficial effects are as follows: the annealing furnace length is set to 5~8m, which can provide sufficient heating and heat preservation area for titanium and titanium alloy wires, thereby achieving uniform and stable annealing treatment, allowing the internal stress of the wire to be fully released at high temperature, reducing the risk of springback and deformation during the drawing process, and improving the straightness and dimensional stability of the wire.

[0014] Preferably, as an improvement, the take-up diameter of the take-up reel is 1.2~1.5m.

[0015] The beneficial effects are: setting the diameter of the take-up reel to 1.2~1.5m can effectively increase the winding radius of the wire during the winding process, reduce bending deformation, and avoid residual stress and deformation of the wire caused by the winding radius being too small. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a top view of the wire drawing device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the mold in an embodiment of the present utility model.

[0017] The reference numerals in the accompanying drawings include: 1. Wire feeding frame; 2. Wire feeding reel; 3. Spraying device; 4. Perforation; 5. Die; 6. Take-up reel; 7. First motor; 8. Straightening wheel mechanism; 9. Annealing furnace; 10. Metal wire; 11. Wire drawing device. Detailed Implementation

[0018] The following detailed description is provided through specific implementation methods and examples: The preferred embodiments of this utility model are basically as shown in the appendix. Figure 1-3 As shown, Figure 1 The rotary titanium and titanium alloy wire drawing device shown includes a wire feeding frame 1, a straightening wheel mechanism 8, a lubrication mechanism, an annealing furnace, and a wire drawing device 11 for drawing metal wire 10, arranged in sequence. The wire feeding frame 1 is equipped with a wire feeding wheel 2 for feeding out the metal wire. The lubrication mechanism includes a spraying device 3. The spraying device 3 is provided with a through hole 4 for the metal wire 10 to pass through. The inner wall of the through hole 4 is provided with several sprayers for spraying graphite emulsion.

[0019] In this technical solution, the wire feeding frame 1 is equipped with a wire feeding wheel 2 for feeding out the metal wire, which can realize the smooth winding and uniform feeding of the metal wire 10, effectively reducing the twisting and vibration of the wire in the initial stage of drawing, helping to reduce radial vibration and eccentricity during the drawing process, and improving the quality of the wire entering the die. The inner wall of the perforation 4 is circumferentially arranged with a sprayer for spraying graphite emulsion, which can form a stable and uniform lubricating film on the circumference of the metal wire 10 during the high-temperature drawing process, significantly reducing the friction between the titanium and titanium alloy wire and the die 5, preventing defects such as scratches and pulls on the wire surface that extend along the length direction, and ensuring the consistency of the wire surface quality.

[0020] This utility model device, through the synergistic effect of the straightening wheel mechanism 8 and the annealing furnace, can effectively straighten and relieve stress on the metal wire 10 before and after drawing, thereby improving the dimensional accuracy and mechanical property stability of the wire.

[0021] To ensure a simple, reliable, and easy-to-assemble structure, the preferred embodiment of this invention features a wire drawer 11 with symmetrically arranged molds 5 and take-up wheels 6 on both sides of the wire feeding direction of the wire feeding frame 1. A first motor 7 drives the take-up wheels 6 to rotate. The take-up wheels 6 are all rotatably positioned on the side away from the annealing furnace 9. The molds 5 have drawing grooves for the wire 10 to pass through. The first motor 7 drives the take-up wheels 6 to rotate, ensuring constant speed and stable tension control during the winding process, which helps maintain a uniform wire diameter and surface quality. The take-up wheels 6 are positioned on the side away from the annealing furnace 9, allowing the wire 10 to be annealed before drawing. The wire drawer 11, with symmetrically arranged molds 5 and take-up wheels 6 on both sides of the wire feeding direction of the wire feeding frame 1, allows the same wire drawer 11 to cooperate with two sets of wire feeding frames 1 to improve drawing efficiency, further enhancing production continuity and capacity. To ensure a simple and reliable structure, the preferred embodiment of this invention uses a take-up wheel 6 with a take-up diameter of 1.2~1.5m. This effectively increases the winding radius of the wire during the winding process, reduces bending deformation, and avoids residual stress and deformation of the wire due to an excessively small take-up radius. To ensure the surface quality of the metal wire 10, the preferred embodiment of this invention uses a mold 5 rotatably connected to the wire drawer 11, with the rotation direction parallel to the wire release direction. A second motor drives the mold 5 to rotate at a set speed, allowing the graphite emulsion to be evenly coated on the wire surface, ensuring a smooth, black surface after drawing and preventing surface quality defects.

[0022] To ensure a simple, reliable, and easy-to-assemble structure, the preferred embodiment of this invention comprises a straightening wheel mechanism 8 consisting of 5-7 guide wheels rotatably arranged on the same vertical plane. Adjacent guide wheels are staggered vertically, and each guide wheel has a V-shaped wire-passing groove on its outer circumference. The arrangement of the guide wheels on the same vertical plane ensures uniform force on the wire during passage, preventing deviation and improving straightening accuracy. The staggered arrangement of adjacent guide wheels forms a multi-point bending straightening path, effectively eliminating bending stress and residual deformation of the wire. This ensures good straightness of the wire before it enters the annealing furnace and drawing machine 11, guaranteeing subsequent precision drawing and stable take-up. To ensure lubrication, the preferred embodiment of this invention uses graphite emulsion as the lubricant. The graphite powder concentration in the graphite emulsion is 25-30%, and the graphite powder particle size range is 3-10μm. The graphite emulsion with appropriate concentration can ensure that the lubricating film continuously covers the surface of the wire, preventing scratches or pulls caused by excessive local friction. The graphite powder with a particle size of 3-10μm can fill the tiny gaps between the wire and the mold 5, improving the lubrication effect and wear resistance, and further improving the surface quality of the wire.

[0023] To ensure annealing efficiency, the preferred embodiment of this invention is that the annealing furnace 9 is a tubular online annealing furnace 9 with a length of 5-8m. The length of the annealing furnace 9 is set to 5-8m to provide sufficient heating and heat preservation area for titanium and titanium alloy wires, thereby achieving uniform and stable annealing treatment. This allows the internal stress of the wire to be fully released at high temperatures, reducing the risk of springback and deformation during the drawing process, and improving the straightness and dimensional stability of the wire.

[0024] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A rotary titanium and titanium alloy wire drawing device, characterized in that: The device includes a wire feeding frame (1), a straightening wheel mechanism (8), a lubrication mechanism, an annealing furnace (9), and a wire drawing device (11) for drawing metal wire (10). The wire feeding frame (1) is rotatably equipped with a wire feeding wheel (2) for feeding out metal wire. The lubrication mechanism includes a spray device (3). The spray device (3) is equipped with a through hole (4) for the metal wire (10) to pass through. The inner wall of the through hole (4) is equipped with several sprayers for spraying lubricant. The wire drawing device (11) is symmetrically equipped with a mold (5) for the metal wire (10) to pass through and a take-up wheel (6) on both sides along the wire feeding direction of the wire feeding frame (1). The mold (5) is rotatably connected to the wire drawing device (11) and the rotation direction is parallel to the wire feeding direction. A second motor is provided to drive the mold (5) to rotate at a set speed.

2. The rotary titanium and titanium alloy wire drawing device according to claim 1, characterized in that: A first motor (7) is provided to drive the take-up reel (6) to rotate. The take-up reels (6) are all rotated and set on the side away from the annealing furnace (9). The rotation direction of the take-up reel (6) is perpendicular to the wire feeding direction of the metal wire (10). The mold (5) is provided with a drawing groove for the metal wire (10) to pass through.

3. The rotary titanium and titanium alloy wire drawing device according to claim 1, characterized in that: The straightening wheel mechanism (8) includes 5-7 guide wheels that are rotatably set on the same vertical plane. The adjacent guide wheels are arranged alternately up and down, and the outer circumference of each guide wheel is provided with a V-shaped wire groove for wire passage.

4. The rotary titanium and titanium alloy wire drawing device according to claim 1, characterized in that: The annealing furnace (9) is a tubular online annealing furnace with a length of 5~8m.

5. The rotary titanium and titanium alloy wire drawing device according to claim 1, characterized in that: The take-up diameter of the take-up reel (6) is 1.2~1.5m.

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