A straightening device for titanium alloy wire

Abstract

The utility model relates to a kind of straightening device of titanium alloy wire rod, belong to titanium alloy wire rod straightening technical field.Aiming at the problems such as not accurate tension control, easy to lead to deformation fracture etc. that traditional small-specification titanium alloy wire rod straightening process exists, the scheme is sequentially set along straightening direction pay-off rack, servo pay-off machine, tubular heating furnace, three groups of support roller shaft, servo take-up machine and processing mechanism.Precision control wire rod tension, in which, servo pay-off machine and take-up machine are driven by servo motor to rotate up and down wire feeding roller (pay-off machine speed is lower than take-up machine);Processing mechanism integrates roll-to-roll (take-up frame winding) and roll-to-bar (hydraulic drive cut-off moving knife cooperates with static knife cutting) two modes.The utility model has the advantages of accurate tension control, high straightening accuracy, flexible production, etc., can effectively improve the straightness and surface quality of titanium alloy wire rod, meet the stringent requirements of medical, aviation and other fields.

Description

Technical Field

[0001] This utility model belongs to the field of titanium alloy wire straightening technology, and specifically relates to a straightening device for titanium alloy wire. Background Technology

[0002] Titanium alloys are widely used in demanding fields such as medical implants, aerospace structural components, and chemical corrosion-resistant equipment due to their excellent properties, including light weight, high strength, corrosion resistance, and shape memory. Among these applications, the straightening of small-diameter titanium alloy wires (1–6 mm in diameter) is a crucial step in ensuring their performance.

[0003] Traditional straightening processes for small-gauge titanium alloy wires often employ direct tension application after heating. However, this method has significant drawbacks: tension control relies on a mechanical transmission system, making it susceptible to interference from external factors such as equipment operating resistance and roller friction, resulting in large tension fluctuations at both ends of the wire and difficulty in precise control. For small-gauge wires, the required straightening tension is inherently small (typically a few Newtons to tens of Newtons), and even minor tension deviations can cause wire bending deformation, surface scratches, or even breakage, severely impacting straightening accuracy and yield. This makes it difficult to meet the stringent requirements of high straightness and high surface quality for titanium alloy wires in fields such as medical and aerospace. Therefore, developing a titanium alloy wire straightening method with precise tension control, high straightening accuracy, and strong adaptability has significant practical application value. Summary of the Invention

[0004] To achieve the above objectives, this utility model provides the following technical solution: a straightening device for titanium alloy wire, comprising a wire feeding frame, a servo wire feeding machine, a tubular heating furnace, a support roller, a servo take-up machine, and a processing mechanism arranged sequentially along the straightening direction of the titanium alloy wire; The servo wire feeding machine and the servo wire taking machine have the same structure, both including a mounting bracket. Two wire feeding rollers are mounted on the mounting bracket and rotate up and down about the titanium alloy wire as the axis of symmetry. The two wire feeding rollers are driven by gears meshing with each other. The input end of one of the gears is connected to the output end of the servo motor. The servo motor is fixedly mounted on the mounting bracket.

[0005] As a further improvement of this utility model, the servo motor speed of the servo pay-off machine is lower than the servo motor speed of the servo take-up machine.

[0006] As a further improvement of this utility model, the processing mechanism includes a roll-to-roll processing component and a roll-to-bar processing component. The roll-to-roll processing component includes a take-up frame, which is used to take up the straightened titanium alloy wire.

[0007] As a further improvement of this utility model, the coil-to-bar processing assembly includes a cutting base, a stationary cutting blade, a moving cutting blade, and a placement chamber. The stationary cutting blade and the moving cutting blade are respectively arranged on the base with the titanium alloy wire as the axis of symmetry. The stationary cutting blade is fixedly arranged on the base, and the moving cutting blade is arranged on the base through a hydraulic rod.

[0008] As a further improvement of this utility model, the wire feeding frame and the wire take-up frame have the same structure, both including a wire frame and a wire roller, with the wire roller rotatably mounted on the wire frame.

[0009] As a further improvement of this utility model, the support rollers are arranged in three groups evenly.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. Precise tension control: By controlling the speed difference between the servo motors of the servo pay-off machine and the servo take-up machine (the servo pay-off machine speed is lower than that of the take-up machine), the tension of the titanium alloy wire during the straightening process can be precisely adjusted, avoiding wire deformation or breakage caused by tension fluctuations, and significantly improving the straightening effect and product quality.

[0011] 2. High straightening accuracy: After the titanium alloy wire is heated in a tubular heating furnace, it is air-cooled and shaped by three sets of evenly arranged support rollers to ensure that the wire is subjected to uniform force, effectively reduce bending or deviation, and further improve straightening accuracy and surface finish.

[0012] 3. High production flexibility: The processing mechanism integrates both roll-to-roll and roll-to-bar modes, allowing for the selection of winding or cutting operations according to actual needs, flexibly responding to the processing requirements of different wire specifications, and significantly improving production adaptability. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the roll-to-roll assembly of a straightening device for titanium alloy wire; Figure 2 This is a schematic diagram of a straightening device for titanium alloy wire, showing the winding rod.

[0015] The components include: 1. Wire coil; 2. Servo wire feeder; 3. Tubular heating furnace; 4. Support roller; 5. Servo electric take-up machine; 6. Take-up machine; 7. Cutting moving knife; 8. Placement bin; 9. Cutting stationary knife. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0017] See Figures 1 to 2 As shown, a straightening device for titanium alloy wire is characterized by comprising: a wire feeding frame, a servo wire feeding machine 2, a tubular heating furnace 3, a support roller 4, a servo take-up machine 5, and a processing mechanism arranged sequentially along the straightening direction of the titanium alloy wire. The servo wire feeding machine 2 and the servo wire taking machine 5 have the same structure, both including a mounting bracket. Two wire feeding rollers are mounted on the mounting bracket and rotate up and down about the titanium alloy wire as the axis of symmetry. The two wire feeding rollers are driven by gears meshing with each other. The input end of one of the gears is connected to the output end of the servo motor. The servo motor is fixedly mounted on the mounting bracket.

[0018] The titanium alloy wire is placed on the pay-off frame, and the servo motors on the servo pay-off machine 2 and the servo take-up machine 5 are started. Under the action of gear meshing, the servo motors drive the upper and lower feed rollers to rotate. Guided by the feed rollers, the titanium alloy wire smoothly enters the tubular heating furnace 3 for heating treatment. After heating, the titanium alloy wire is air-cooled and shaped by the support roller shaft 4, and then taken up by the servo take-up machine 5 to ensure uniform wire tension. Finally, the processing mechanism selects either roll-to-roll or roll-to-bar method according to requirements to achieve efficient straightening and cutting of the titanium alloy wire, improving processing accuracy and efficiency, and meeting diverse production needs.

[0019] Optionally, the servo motor of the servo wire feeding machine 2 has a lower speed than the servo motor of the servo wire taking machine 5. By precisely controlling the speed difference between the two servo motors, the tension of the titanium alloy wire is kept constant during the straightening process, avoiding wire deformation or breakage caused by tension fluctuations, thereby further improving the straightening effect and product quality.

[0020] Typically, the servo take-up machine 5 operates at a slightly higher speed than the servo pay-off machine 2. Since both the servo pay-off machine 22 and the servo take-off machine 5 are driven by high-precision servo motors, the speed difference between them can be controlled very precisely. This speed difference generates tension on the wire between the servo pay-off machine 22 and the servo take-off machine 5, allowing for fine-tuning of the speed difference between them based on the wire's diameter reduction and straightening requirements. This control method is unaffected by other mechanical transmission resistance, ensuring stable quality during the straightening process even with lower required tension.

[0021] Optionally, the processing mechanism includes a roll-to-roll processing component and a roll-to-bar processing component. The roll-to-roll processing component includes a take-up frame 6, which is used to take up the straightened titanium alloy wire.

[0022] In this embodiment, the straightening process flexibly selects between two modes: roll-to-roll and roll-to-bar, to flexibly meet the needs of different wire specifications and significantly improve production flexibility. In the roll-to-roll mode, thanks to the memory properties of titanium alloy, after the straightening process is completed, the titanium alloy wire can be rewound through the take-up frame 6 without affecting the straightness of the wire.

[0023] Optionally, the coil-to-bar processing assembly includes a cutting base, a stationary cutting blade 9, a moving cutting blade 7, and a placement chamber 8. The stationary cutting blade 9 and the moving cutting blade 7 are respectively arranged on the base with the titanium alloy wire as the axis of symmetry. The stationary cutting blade 9 is fixedly arranged on the base, and the moving cutting blade 7 is arranged on the base through a hydraulic rod.

[0024] In this embodiment, after the titanium alloy wire is straightened and reaches the required length of the titanium alloy bar, the cutting moving blade 7 is rapidly pressed down under the drive of the hydraulic rod, precisely cooperating with the cutting stationary blade 9 to achieve precise cutting of the titanium alloy wire, meeting the requirements of high-precision processing. The cut titanium alloy bars are then stored orderly in the placement chamber 8 for easy use in subsequent processes.

[0025] Optionally, the wire feeding frame and the wire take-up frame 6 have the same structure, both including a wire frame and a wire roller. The wire roller is rotatably mounted on the wire frame. During the wire feeding and take-up process, the stable rotation of the wire roller ensures that the wire is released and retrieved evenly, reduces wire wear, and extends the service life of the equipment.

[0026] Optionally, the support rollers 4 are arranged in three sets evenly to ensure that the titanium alloy wire is subjected to uniform force during the straightening process, avoid wire bending or displacement due to insufficient support points, and further improve straightening accuracy and surface finish.

[0027] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.

Claims

1. A straightening device for titanium alloy wire, characterized in that: The system includes a wire feeding frame, a servo wire feeding machine (2), a tubular heating furnace (3), a support roller (4), a servo take-up machine (5), and a processing mechanism arranged sequentially along the straightening direction of the titanium alloy wire. The servo wire feeding machine (2) and the servo wire taking machine (5) have the same structure, both including a mounting bracket. Two wire feeding rollers are mounted on the mounting bracket and rotate up and down with the titanium alloy wire as the axis of symmetry. The two wire feeding rollers are driven by gears meshing with each other. The input end of one of the gears is connected to the output end of the servo motor. The servo motor is fixedly mounted on the mounting bracket.

2. The straightening device for titanium alloy wire according to claim 1, characterized in that: The servo motor speed of the servo pay-off machine (2) is lower than the servo motor speed of the servo take-up machine (5).

3. The straightening device for titanium alloy wire according to claim 1, characterized in that: The processing mechanism includes a roll-to-roll processing component and a roll-to-bar processing component. The roll-to-roll processing component includes a take-up frame (6), which is used to take up the straightened titanium alloy wire.

4. The straightening device for titanium alloy wire according to claim 3, characterized in that: The coil-to-bar processing assembly includes a cutting base, a stationary cutting blade (9), a moving cutting blade (7), and a placement chamber (8). The stationary cutting blade (9) and the moving cutting blade (7) are respectively arranged on the base with the titanium alloy wire as the axis of symmetry. The stationary cutting blade (9) is fixedly arranged on the base, and the moving cutting blade (7) is arranged on the base through a hydraulic rod.

5. The straightening device for titanium alloy wire according to claim 3, characterized in that: The wire feeding frame and the wire take-up frame (6) have the same structure, both including a wire frame and a wire roller, with the wire roller rotatably mounted on the wire frame.

6. The straightening device for titanium alloy wire according to claim 1, characterized in that: The support rollers (4) are arranged in three groups evenly.

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