Memory alloy wire continuous stretching and straightening mechanism

Abstract

The utility model discloses memory alloy wire material continuous drawing straightening mechanism relates to straightening machine technical field, including the organism, the top rotation of body is connected with the conveying roller, be equipped with wire material spare on the conveying roller, the top fixed connection of body has the first straightening guide pulley, the top fixed connection of body has the second straightening guide pulley, the first straightening guide pulley with the second straightening guide pulley between the wire material spare, through the heating of wire material spare to the first straightening guide pulley and the second straightening guide pulley of connecting direct current positive and negative pole respectively, and laser diameter monitor and infrared thermometer, realized the real -time, on -line accurate monitoring to wire material spare diameter and temperature, by control system dynamic regulation heating current parameter, take -up speed and tension size, thereby constitute a all -round intelligent closed -loop control system, finally significantly improved alloy wire material in continuous drawing straightening process size control precision, temperature stability and product consistency.

Description

Technical Field

[0001] This utility model relates to the field of straightening machine technology, specifically to a continuous stretching and straightening mechanism for shape memory alloy wires. Background Technology

[0002] Alloy wires are widely used in key fields such as aerospace, medical equipment, precision electronics and high-end manufacturing due to their excellent strength, corrosion resistance and specific electrical properties. These applications place extremely stringent requirements on the dimensional accuracy, straightness and mechanical property consistency of the wires. Therefore, continuous stretching and straightening are indispensable key processes in the post-processing of wire production to improve its overall quality.

[0003] Existing continuous stretching and straightening mechanisms for alloy wire typically operate by repeatedly bending and pressing the moving wire with one or more sets of staggered straightening rollers to achieve straightening. At the same time, a resistance heating device is used to heat the wire by electricity, making it more prone to plastic deformation at high temperatures through the Joule heating effect. Combined with the speed difference between the take-up and unwinding units, stretching and sizing are achieved, ultimately completing the straightening and dimensional control.

[0004] However, existing mechanisms have significant drawbacks: First, their resistance heating systems typically employ open-loop or simple closed-loop control, making it impossible to precisely adjust the heating current based on real-time temperature and diameter changes in the wire. This can easily lead to overheating and burns or insufficient heating, affecting material properties and dimensional stability. Second, there is a lack of online real-time monitoring methods for key parameters during the straightening process. Operators can only set and adjust process parameters based on experience, making it difficult to ensure product consistency in mass production. Third, inaccurate tension control and poor speed matching between the take-up and undo units can easily cause fluctuations or jitter in the wire's stretching, thereby affecting the straightening effect and dimensional accuracy, and hindering the stable and efficient production of high-quality alloy wire. Utility Model Content

[0005] The purpose of this invention is to provide a continuous stretching and straightening mechanism for shape memory alloy wires, in order to solve the technical problem that the existing resistance heating system usually adopts open-loop or simple closed-loop control, which cannot accurately adjust the heating current according to the real-time temperature and diameter changes of the wire, easily leading to overheating and burns or insufficient heating, affecting the material properties and dimensional stability.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution: A continuous stretching and straightening mechanism for shape memory alloy wire includes a machine body; a conveying roller is rotatably connected to the top of the machine body; a wire component is mounted on the conveying roller; a first straightening guide wheel is fixedly connected to the top of the machine body; a second straightening guide wheel is fixedly connected to the top of the machine body; a wire component is positioned between the first and second straightening guide wheels; a wire tensioner is fixedly connected to the top of the machine body, located on one side of the second straightening guide wheel; a laser diameter measuring monitor is fixedly connected to the top of the machine body, located above the wire component; and an infrared thermometer is fixedly connected to the top of the machine body.

[0007] As a further embodiment of this utility model: a motor is fixedly connected to the top of the machine body; a cleaning brush is fixedly connected to the output end of the motor, and the cleaning brush is located on one side of the filament material.

[0008] As a further embodiment of this utility model: a telescopic cylinder is fixedly connected to the top of the machine body; a positioning frame is fixedly connected to the side end of the telescopic cylinder; and the positioning frame is fixedly connected to the side end of the motor.

[0009] As a further embodiment of this utility model: a positioning plate is fixedly connected to the top of the machine body; a water tank is fixedly connected to the top of the positioning plate; a spray head is fixedly connected to the bottom of the water tank; a sewage tank is provided inside the machine body; and a recycling bin is slidably connected inside the machine body.

[0010] The beneficial effects of this invention are as follows: By using a No. 1 straightening guide wheel and a No. 2 straightening guide wheel connected to the positive and negative poles of a DC power supply to heat the wire, and using a laser diameter monitor and an infrared thermometer, real-time, online, and accurate monitoring of the wire diameter and temperature is achieved. Simultaneously, wire tensioners are installed at the take-up and release ends, enabling precise closed-loop control of the straightening tension. This system feeds back the monitored real-time wire diameter, temperature, and tension data to the central control system, which dynamically adjusts the heating current parameters, take-up speed, and tension, thus forming a comprehensive intelligent closed-loop control system. Ultimately, this significantly improves the dimensional control accuracy, temperature stability, and product consistency of the alloy wire during continuous stretching and straightening, effectively avoiding defects such as overheating, breakage, or insufficient straightening, and ensuring stable and efficient production of high-quality products. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the laser diameter measuring and monitoring device in this utility model; Figure 3 This is a three-dimensional view of the cleaning brush structure in this utility model; In the diagram: 1. Machine body; 2. Conveyor roller; 3. Wire material component; 4. First straightening guide roller; 5. Second straightening guide roller; 6. Wire tensioner; 7. Laser diameter measuring monitor; 8. Infrared thermometer; 9. Cleaning brush; 10. Motor; 11. Positioning frame; 12. Telescopic cylinder; 13. Positioning plate; 14. Water tank; 15. Spray head; 16. Wastewater tank; 17. Recycling bin. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0014] like Figures 1-3 As shown, a continuous stretching and straightening mechanism for shape memory alloy wire includes a machine body 1; a conveying roller 2 is rotatably connected to the top of the machine body 1; a wire component 3 is provided on the conveying roller 2; a first straightening guide wheel 4 is fixedly connected to the top of the machine body 1; a second straightening guide wheel 5 is fixedly connected to the top of the machine body 1; the wire component 3 is provided between the first straightening guide wheel 4 and the second straightening guide wheel 5; a wire tensioner 6 is fixedly connected to the top of the machine body 1, and the wire tensioner 6 is located on one side of the second straightening guide wheel 5; a laser diameter measuring monitor 7 is fixedly connected to the top of the machine body 1, and the laser diameter measuring monitor 7 is located above the wire component 3; an infrared thermometer 8 is fixedly connected to the top of the machine body 1.

[0015] During operation, the wire part 3 is conveyed by the rotation of the conveying roller 2. The wire part 3 is conveyed from inside the first straightening guide roller 4 and the second straightening guide roller 5. The first straightening guide roller 4 and the second straightening guide roller 5 are respectively connected to the positive and negative terminals of DC power to heat the wire part 3. With the help of the wire tensioner 6, the wire part 3 is tensioned and straightened. The laser diameter measuring and monitoring device 7 is located above the first straightening guide roller 4 and the second straightening guide roller 5 to monitor the size in real time. The infrared thermometer 8 is used to monitor the temperature of the wire part 3. With the real-time wire diameter data and tension data of the wire tensioner 6, the size and temperature data can be fed back to the control system to adjust the current parameters, winding speed and tension in real time, thereby realizing the straightening and straightening processing of the wire part 3. A motor 10 is fixedly connected to the top of the body 1; a cleaning brush 9 is fixedly connected to the output end of the motor 10, and the cleaning brush 9 is located on one side of the filament 3.

[0016] After the wire part 3 is straightened, it needs to be cleaned. The cleaning brush 9 is rotated by the motor 10. The rotation of the cleaning brush 9 can clean the surface of the wire part 3, so that the wire part 3 can be cleaned directly after straightening without the need for transfer operation. A telescopic cylinder 12 is fixedly connected to the top of the body 1; a positioning frame 11 is fixedly connected to the side end of the telescopic cylinder 12; and the positioning frame 11 is fixedly connected to the side end of the motor 10.

[0017] Before operation, the position of the cleaning brush 9 can be adjusted according to the size of the filament part 3. The positioning frame 11 is slid by the telescopic cylinder 12, so that the positioning frame 11 can be slid to adjust its position to match the size of the filament part 3 and ensure that the cleaning brush 9 can clean the filament part 3. A positioning plate 13 is fixedly connected to the top of the body 1; a water tank 14 is fixedly connected to the top of the positioning plate 13; a spray head 15 is fixedly connected to the bottom of the water tank 14; a sewage tank 16 is opened inside the body 1; and a recycling box 17 is slidably connected inside the body 1.

[0018] Water inside the water tank 14 is sprayed onto the surface of the wire part 3 through the spray head 15. Combined with the cleaning brush 9, the cleaning effect on the wire part 3 can be improved. The positioning plate 13 can fix the position of the water tank 14. Wastewater can fall naturally into the sewage tank 16. Wastewater enters the recycling box 17 for internal storage through the sewage tank 16, which is convenient for subsequent unified treatment. The working principle of this utility model is as follows: During operation, the filament part 3 is conveyed by the rotation of the conveying roller 2. The filament part 3 is conveyed from inside the first straightening guide roller 4 and the second straightening guide roller 5. The first straightening guide roller 4 and the second straightening guide roller 5 are respectively connected to the positive and negative terminals of DC power to heat the filament part 3. This, combined with the filament tensioner 6, allows for tensioning and straightening. A laser diameter measuring and monitoring device 7 is located above the first straightening guide roller 4 and the second straightening guide roller 5 to monitor the dimensions in real time. An infrared thermometer 8 is used to monitor the temperature of the filament part 3. Combined with the real-time filament diameter and tension data from the filament tensioner 6, the size and temperature data can be fed back to the control system to adjust the current parameters, take-up speed, and tension in real time, thereby achieving the straightening and straightening process of the filament part 3. After straightening, the filament part 3 needs to be cleaned. Motor 10 rotates cleaning brush 9, which cleans the surface of filament 3. This allows the filament 3 to be cleaned directly after straightening, eliminating the need for transfer. Before operation, the position of cleaning brush 9 can be adjusted according to the size of filament 3. The positioning frame 11 is slidable by telescopic cylinder 12 to adjust its position to fit the size of filament 3, ensuring proper cleaning by cleaning brush 9. Water from water tank 14 is sprayed onto the surface of filament 3 through spray head 15, which, in conjunction with cleaning brush 9, enhances the cleaning effect. Positioning plate 13 fixes the position of water tank 14. Wastewater naturally falls into wastewater tank 16 and enters recycling bin 17 for storage, facilitating subsequent unified treatment.

[0019] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A continuous stretching and straightening mechanism for shape memory alloy wires, characterized in that, The machine includes a body (1); a conveying roller (2) is rotatably connected to the top of the body (1); a wire component (3) is provided on the conveying roller (2); a first straightening guide wheel (4) is fixedly connected to the top of the body (1); a second straightening guide wheel (5) is fixedly connected to the top of the body (1); a wire component (3) is provided between the first straightening guide wheel (4) and the second straightening guide wheel (5); a wire tensioner (6) is fixedly connected to the top of the body (1), and the wire tensioner (6) is located on one side of the second straightening guide wheel (5); a laser diameter measuring monitor (7) is fixedly connected to the top of the body (1), and the laser diameter measuring monitor (7) is located above the wire component (3); an infrared thermometer (8) is fixedly connected to the top of the body (1).

2. The continuous stretching and straightening mechanism for shape memory alloy wires according to claim 1, characterized in that, A motor (10) is fixedly connected to the top of the body (1); a cleaning brush (9) is fixedly connected to the output end of the motor (10), and the cleaning brush (9) is located on one side of the wire material (3).

3. The continuous stretching and straightening mechanism for shape memory alloy wires according to claim 1, characterized in that, A telescopic cylinder (12) is fixedly connected to the top of the body (1); a positioning frame (11) is fixedly connected to the side end of the telescopic cylinder (12); the positioning frame (11) is fixedly connected to the side end of the motor (10).

4. The continuous stretching and straightening mechanism for shape memory alloy wires according to claim 1, characterized in that, A positioning plate (13) is fixedly connected to the top of the body (1); a water tank (14) is fixedly connected to the top of the positioning plate (13); a spray head (15) is fixedly connected to the bottom of the water tank (14); a sewage tank (16) is opened inside the body (1); a recycling box (17) is slidably connected inside the body (1).

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