Superfine tungsten wire rope linear preparation device and preparation method of superfine annular fretsaw

Abstract

The invention discloses a superfine tungsten wire rope linear preparation device and method for a superfine annular fretsaw, a tungsten wire rope is composed of a first wire and a plurality of second wires spirally wound on the first wire, the preparation device comprises a second straightening machine, two sets of second straightening parts are arranged on the second straightening machine, a second passing space is formed between the two sets of second straightening parts, and a first passing space is formed between the first straightening part and the second straightening part; when the tungsten filament rope passes through the second passing space and is mutually extruded and straightened by the second straightening wheel, the second straightening machine rotates around the tungsten filament rope, and the rotating direction is the same as the spiral direction of the second filament; the straightened tungsten filament rope enters a setting machine, and the setting machine applies a set temperature to the tungsten filament rope, so that the internal stress of the second filament is effectively eliminated, and finally, the second filament is bent and set to be in a stable spiral state, and filament jumping in the subsequent manufacturing process is avoided; according to the method, the technological method of straightening, rotary straightening and heating shaping is adopted, and the technical problems that the tungsten filaments are prone to bounce, and the annular wires are difficult to be woven through a disassembling and weaving method are solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cutting wire saws, and in particular to a device and method for preparing a straight line of an ultrafine tungsten wire rope for an ultrafine annular wire saw. Background Art

[0002] A circular diamond wire saw is a composite wire saw made of a ring-shaped metal wire coated with diamond to achieve unidirectional circular cutting. It can be used to cut materials such as stone, ceramics, sapphire crystals, single-crystal silicon crystals, and high-strength graphite. Circular wire saws are typically manufactured using two methods: 1. Welding: a metal rope or wire is butt-jointed at both ends, laser-welded or arc-welded to form a loop, which is then coated with diamond. 2. Braiding: The wire is braided into strands in a 1+6 configuration, then unwound and re-braided. The core and side wires are then staggered to create a circular shape, which is then coated with diamond to create the circular wire saw (see Patent Publication No. CN114378367A).

[0003] The material of the circular wire saw can be high carbon steel or tungsten wire. Since the strength of carbon steel is lower than that of tungsten wire, the diameter of tungsten wire can be 10% to 15% smaller than that of steel wire under the same cutting tension.

[0004] However, tungsten wire has a high melting point and is brittle after recrystallization, making it unsuitable for welding to create loops. Tungsten wire also has a high elastic modulus and is difficult to shape. When braiding to create loops, the wire is difficult to re-weave along its original path, making it prone to wire skipping. The resulting bumps can lead to unacceptably uneven cut surfaces. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a device and method for preparing a straight line of ultra-fine tungsten wire rope for an ultra-fine circular wire saw.

[0006] In a first aspect, the present application provides an ultrafine tungsten wire rope straight preparation device for an ultrafine circular wire saw, comprising: a second straightening machine, wherein the second straightening machine is provided with two groups of second straightening parts, each of the second straightening parts comprising a plurality of second straightening wheels arranged along the conveying direction of the tungsten wire rope, the second straightening wheels of the two groups of the second straightening parts being staggered, a second passage space being formed between the two groups of the second straightening parts for allowing the tungsten wire rope to pass through, and the second straightening machine rotates around the tungsten wire rope at a set speed; The shaping machine is arranged at the front end of the second straightening machine in the conveying direction of the tungsten wire rope, and is used to apply a set temperature to the tungsten wire rope to eliminate its internal stress and shape it. The two ends of the shaping machine are respectively an input end and an output end. The input end is used to receive the straightened tungsten wire rope, and the output end is used to output the tungsten wire rope that has been heated and shaped.

[0007] According to the technical solution provided in the embodiment of the present application, the second straightening machine includes a rotating frame, and the plurality of second straightening wheels are rotatably arranged inside the rotating frame.

[0008] According to the technical solution provided in the embodiment of the present application, the second straightening machine also includes a driving assembly, the driving assembly includes a third driving machine, the driving end of the third driving machine is coaxially fixedly connected to a transmission wheel, the rotating frame is wrapped by a conveyor belt, and the rotating frame and the transmission wheel are connected through a conveyor belt transmission.

[0009] According to the technical solution provided in the embodiment of the present application, the tungsten wire rope includes a first wire and a plurality of second wires, and the plurality of second wires are wound around the first wire in a spiral form to form the tungsten wire rope.

[0010] According to the technical solution provided in the embodiment of the present application, it also includes a stranding machine, which is used to weave one first wire and multiple second wires into the tungsten wire rope.

[0011] According to the technical solution provided in the embodiment of the present application, a first straightening machine is provided at the front end of the stranding machine along the conveying direction of the tungsten wire rope, the first straightening machine includes two groups of first straightening parts arranged in an array, and a first passing space is formed between the two groups of first straightening parts for allowing the braided tungsten wire rope to pass through, the first straightening part includes a plurality of first straightening wheels arranged along the conveying direction of the tungsten wire rope, and the first straightening wheels of the two groups of first straightening parts are staggered.

[0012] According to the technical solution provided in the embodiment of the present application, the present invention further includes a first winding wheel, an unwinding wheel, and a second winding wheel. The first winding wheel and the unwinding wheel are arranged between the first straightener and the second straightener and are arranged in sequence along the conveying direction of the tungsten wire rope. The first winding wheel is used to wind up the tungsten wire rope straightened by the first straightener and guide it to the unwinding wheel for winding. The unwinding wheel is used to convey the tungsten wire rope to the second straightener. The first winding wheel is used to provide constant tension to the tungsten wire rope; The second winding wheel is arranged at the output end side of the setting machine, and is used to wind up the tungsten wire rope after being heated and set. The unwinding wheel is provided with a braking component for straightening the tungsten wire rope located between the unwinding wheel and the second winding wheel.

[0013] According to the technical solution provided in the embodiment of the present application, it also includes a traction machine, which is arranged between the first winding wheel and the first straightening machine. A driving wheel and a driven wheel are rotatably provided on the traction machine. The driving wheel is used to provide traction force to the tungsten wire rope, and the tungsten wire rope is wound by the first winding wheel after passing around the driving wheel and the driven wheel.

[0014] In a second aspect, the present application provides a method for preparing an ultrafine tungsten wire rope for an ultrafine circular wire saw, which uses the ultrafine tungsten wire rope linear preparation device for an ultrafine circular wire saw as described above, and the preparation method comprises: S01, selecting a first wire and a plurality of second wires, and weaving the first wire and the plurality of second wires into a tungsten wire rope by a stranding machine; S02, transporting the braided tungsten wire rope to the first straightening machine for the first straightening, and then winding it by the first winding wheel and guiding it to the unwinding wheel; S03, the second straightening machine receives the unwound tungsten wire rope and performs rotational straightening on the tungsten wire rope at a set rotation speed; S04. The shaping machine receives the tungsten wire rope after rotational straightening, applies a set temperature to it, and shapes it after heating for a set time, and outputs it to the second winding wheel, and the second winding wheel winds up the shaped tungsten wire rope.

[0015] According to the technical solution provided in the embodiment of the present application, the set speed is 30 r / min, the set temperature is 600° C.-700° C., and the set time is 1 hour.

[0016] In summary, the present technical solution specifically discloses a device and a method for preparing a straight line of ultrafine tungsten wire rope for an ultrafine circular wire saw, wherein the tungsten wire rope is composed of a first wire and a plurality of second wires spirally wound on the first wire, the preparation device comprising a second straightening machine, on which two groups of second straightening parts are arranged, and a second passing space is formed between the two groups of second straightening parts for allowing the tungsten wire rope to pass through, the second straightening part comprising a plurality of second straightening wheels arranged along the conveying direction of the tungsten wire rope, and the straightening wheels of the two groups of second straightening parts are staggered. After the tungsten wire rope is initially straightened, it enters the second passing space and is squeezed and straightened by the second straightening wheels. At the same time, the second straightening machine rotates around the tungsten wire rope at a set speed to perform secondary straightening on the tungsten wire rope, and the rotation direction of the second straightening machine is the same as the spiral direction of the second wire; it also includes a shaping machine, the tungsten wire rope straightened by the second straightening machine enters the shaping machine, the shaping machine applies a set temperature to the tungsten wire rope to effectively eliminate the internal stress of the second wire, and finally makes the second wire bend and shape, ensuring that it is in a stable spiral state, thereby avoiding wire jumping in the subsequent production process; The present application adopts a process method of preliminary straightening + rotation straightening + heating and shaping. The second wire is initially pressed against the first wire, and the pressing force is further strengthened by a second straightening machine, and the rotation direction is ensured to be the same as the spiral direction of the second wire. Then, the internal stress of the second wire is eliminated by heating and shaping, so that the second wire is completely shaped, which solves the technical problem that tungsten wire is easy to rebound and difficult to be woven into a ring wire by the disassembly method. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 Schematic diagram of the ultrafine tungsten wire rope straight preparation device for ultrafine circular wire saw.

[0018] Figure 2 This is a cross-sectional view of a tungsten wire rope.

[0019] Figure 3 A diagram showing the steps of the preparation method.

[0020] Numbers in the figure: 1. Second straightening machine; 2. Tungsten wire rope; 3. Second straightening wheel; 4. Forming machine; 5. Rotating frame; 6. First wire; 7. Second wire; 8. Stranding machine; 9. First straightening machine; 10. First winding wheel; 11. Unwinding wheel; 12. Second winding wheel; 13. First straightening wheel. DETAILED DESCRIPTION

[0021] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] Example 1 Please refer to Figure 2 The tungsten wire rope 2 is braided from a single first wire 6 and multiple second wires 7. This application uses six second wires 7 as an example. The first wire 6 serves as the core wire, and six second wires 7 are spirally wound around the first wire 6. The second wires 7 serve as side wires. Both the first wire 6 and the second wires 7 are made of high-strength lanthanum-tungsten alloy wire, which serves as the raw material for the circular wire saw. Under the same cutting tension, the diameter of the braided circular wire is 10% to 15% smaller than that of traditional steel wire, significantly narrowing the incision width and improving material utilization.

[0024] like Figure 1As shown, the ultra-fine tungsten wire rope straight preparation device of the ultra-fine circular wire saw is used to weave a first wire 6 and six second wires 7 into a tungsten wire rope 2, and then straighten and heat the tungsten wire rope 2 to form the processed tungsten wire rope 2 for winding; include: The stranding machine 8 is used to preliminarily weave a first wire 6 and multiple second wires 7 into a tungsten wire rope 2. The stranding machine 8 can be a tubular stranding machine. By placing the first wire 6 and the second wire 7 in a coil or roll on the stranding machine 8, leading out one end of the first wire 6 and the second wire 7, the stranding machine 8 is operated to wind the six second wires 7 in a spiral winding form around the first wire 6, thereby forming the tungsten wire rope 2.

[0025] A first straightening machine 9 is provided on one side of the stranding machine 8. The first straightening machine 9 includes a support member, two groups of first straightening parts arranged on the support member, and a first passing space is formed between the two groups of first straightening parts for passing the tungsten wire rope 2. The first straightening part includes a plurality of first straightening wheels 13 arranged along the conveying direction of the tungsten wire rope 2, and the first straightening wheels 13 of the two groups of first straightening parts are staggered. Thus, the wound tungsten wire rope 2 passes through the first passing space and is squeezed by the two sets of first straightening wheels 13 of the first straightening part to perform the first straightening. At this time, the tungsten wire rope 2 is straightened as a whole and initially maintains a straight and unbent state. In addition, the six second wires 7 spirally wound as the side wires are initially pressed against the first wire 6 of the seat core wire, initially maintaining the spiral bending state of the second wires 7. The initially straightened tungsten wire rope 2 is wound up by the first winding wheel 10 and then guided and transported to the unwinding wheel 11. The first winding wheel 10 and the unwinding wheel 11 are mainly used to wind up, guide and unwind the initially straightened tungsten wire rope 2, and can tighten and wind up the tungsten wire rope 2 to prevent the wound tungsten wire rope 2 from unraveling. The first winding wheel 10 is rotated by a first driving machine, which can be a tension motor. It should be noted that a traction machine is provided between the first straightening machine 9 and the first winding wheel 10. The traction machine is provided with a driving wheel and a driven wheel for rotation. The driving wheel is rotated by a second driving machine, and the speed of the driving wheel can be adjusted; the second driving machine can be a speed motor; After the stranding machine 8 winds the first wire 6 and the second wire 7 into a tungsten wire rope 2, one end of the rope is connected to the traction rope, which passes through the driving wheel and then the driven wheel, and is then wound on the first winding wheel 10; The first driving motor provides constant tension to straighten the tungsten wire rope 2, thereby tightening the tungsten wire rope 2 between the driven wheel and the driving wheel, generating friction, and then the power of the driving wheel can be transmitted to the tungsten wire rope 2, providing traction for the tungsten wire rope 2 wound by the stranding machine 8.

[0026] A second straightener 1 is provided on the side of the unwinding wheel 11 away from the first winding wheel 10. The second straightener 1 includes a rotating frame 5. The rotating frame 5 is supported on the ground by a bracket and is rotatably provided on the bracket. Furthermore, two sets of second straightening parts are provided inside the rotating frame 5. A second passage space is formed between the two sets of second straightening parts for passing the tungsten wire rope 2. The second straightening parts include a plurality of second straightening wheels 3 arranged along the conveying direction of the tungsten wire rope 2, and the second straightening wheels 3 of the two sets of second straightening parts are staggered. Thus, the tungsten wire rope 2 passes through the second passing space and is squeezed by the second straightening wheels 3 of the two sets of second straightening parts to achieve straightening, and the second wire 7 as the side wire is further pressed against the first wire 6 as the core wire; The second straightening machine 1 also includes a driving assembly, which includes a third driving machine, which is installed and fixed by a bracket. The driving end of the third driving machine is coaxially fixedly connected with a transmission wheel. Correspondingly, a transmission part is provided on the rotating frame 5. The transmission part of the rotating frame 5 and the transmission wheel are connected by a transmission belt. Specifically, the transmission wheel and the transmission belt are meshed, and the transmission part and the transmission belt are meshed. They can be in the form of gear toothed belts, etc., and are not specifically limited. Therefore, by starting the third driving machine, the driving end drives the transmission wheel to rotate, and through the meshing action of the conveyor belt, the rotating frame 5 rotates, thereby driving the two sets of second straightening parts to rotate around the tungsten wire rope 2, thereby achieving the purpose of rotational straightening of the tungsten wire rope 2. During the straightening process, rotational compression is performed, and the rotation direction is the same as the spiral winding direction of the second wire 7, so as to further press the second wire 7 onto the first wire 6 to ensure compaction and prevent the second wire 7 from jumping out and causing the tungsten wire rope 2 to disperse.

[0027] A shaping machine 4 is provided on the side of the second straightening machine 1 away from the unwinding wheel 11. The two ends of the shaping machine 4 are respectively an input end and an output end. The input end is close to the second straightening machine 1 and is used to receive the tungsten wire rope 2 after being rotated and straightened. Furthermore, a heating element is provided inside the shaping machine 4 for releasing heat. The temperature is controlled by a controller. The tungsten wire rope 2 that has been rotated and straightened enters the shaping machine 4 from the input end and is output from the output end after being heated. Thus, the internal stress of the second wire 7 can be eliminated by heating, and the second wire 7 can be stably wound on the first wire 6 in a spiral winding manner. After the internal stress of the second wire 7 is eliminated, there will be no wire jumping problem, thereby ensuring that the overall structure of the tungsten wire rope 2 is stable and convenient for subsequent processing.

[0028] A second winding wheel 12 is provided on the side of the setting machine 4 away from the second straightening machine 1, which is used to wind up the heated and shaped tungsten wire rope 2 output from the output end to form the final winding, thus completing the straight preparation of the ultrafine tungsten wire rope of the ultrafine circular wire saw; It should be noted that after the traction rope passes through the first winding wheel 10, it is wound on the unwinding wheel 11, then passes through the second straightening machine 1 and enters the setting machine 4, and is finally wound by the second winding wheel 12; The second winding wheel 12 is rotated by the fourth driving motor, and the traction rope is reeled in by the fourth driving motor, thereby providing traction to the tungsten wire rope 2. When the tungsten wire rope 2 is wound around the second winding wheel 12, the second winding wheel 12 can directly provide traction to the tungsten wire rope 2, and the traction rope is no longer needed, and the traction rope can be disassembled. The unwinding wheel 11 is provided with a brake component, which can be a brake belt or a magnetic powder brake, to provide braking force for the rotation of the unwinding wheel 11 to ensure that the tungsten wire rope 2 between the second winding wheel 12 and the unwinding wheel 11 can be straightened.

[0029] Example 2 A method for preparing an ultrafine tungsten wire rope for an ultrafine annular wire saw, using the ultrafine tungsten wire rope linear preparation device for an ultrafine annular wire saw as proposed in Example 1, such as Figure 3 As shown, the preparation method comprises the following steps: S01, selecting a first wire 6 and a plurality of second wires 7, and weaving the first wire 6 and the plurality of second wires 7 into a tungsten wire rope 2 by a stranding machine 8; S02, conveying the braided tungsten wire rope 2 to the first straightening machine 9 for the first straightening, and then being reeled up by the first reeling wheel 10 and guided to the unreeling wheel 11; S03, the second straightening machine 1 receives the unwound tungsten wire rope 2 and performs rotational straightening on the tungsten wire rope 2 at a set rotation speed; S04, the shaping machine 4 receives the tungsten wire rope 2 after rotational straightening, applies a set temperature to it, heats and shapes it for a set time, and outputs it to the second winding wheel 12, and the second winding wheel 12 winds up the shaped tungsten wire rope 2; Before the tungsten wire rope 2 is braided by the stranding machine 8, the first wire 6 and the second wire 7 are selected in a coil or roll and placed at corresponding positions of the stranding machine 8, so that the first wire 6 serves as the core wire and the second wire 7 serves as the side wire. By starting the stranding machine 8, the plurality of second wires 7 are spirally wound around the first wire 6, thereby forming the tungsten wire rope 2 for output; Furthermore, after the stranding machine 8 weaves the first wire 6 and the second wire 7 into a tungsten wire rope 2 for output, one end of the tungsten wire rope 2 is connected to the traction rope and pulled by the traction rope. The traction rope passes through the first straightening machine 9 and the traction machine and is wound onto the first winding wheel 10. The first winding wheel 10 provides a constant tension, so that the tungsten wire rope 2 is straightened between the driving wheel and the driven wheel of the traction machine, thereby generating friction. The traction force of the driving wheel rotation can be transmitted to the tungsten wire rope 2, thereby achieving traction of the tungsten wire rope 2; The moving tungsten wire rope 2 is straightened for the first time by the first straightening machine 9. The tungsten wire rope 2 is squeezed and straightened by two sets of first straightening wheels 13 of the first straightening section to ensure the spiral winding shape of the second wire 7 and press it tightly on the first wire 6 to complete the preliminary straightening process. The tungsten wire rope is then reeled by the first reeling wheel 10 and then guided to the unreeling wheel 11 for unreeling. After being unwound by the unwinding wheel 11, the tungsten wire rope 2 enters the second passing space of the second straightening machine 1 and is straightened by the straightening wheels 3 of the two sets of second straightening parts on the second straightening machine 1. At the same time, the transmission wheel is driven to rotate by the third driving machine, and the rotating frame 5 drives the two sets of second straightening parts to rotate around the tungsten wire rope 2 at a set speed through the conveyor belt. The rotation direction is the same as the spiral direction of the second wire 7, further strengthening the pressure on the second wire 7, making it more firmly pressed on the first wire 6; After being straightened by rotation, the tungsten wire rope 2 is conveyed to the setting machine 4. By being heated at a set temperature and for a set time, the internal stress of the second wire 7 is removed, so that the second wire 7 is bent and shaped, and the spiral state is maintained. This can prevent the second wire 7 from being broken due to the influence of internal stress during the subsequent process of making the tungsten wire rope 2 into a circular wire saw. After being heated and shaped by the shaping machine 4, the tungsten wire rope 2 is finally wound by the second winding wheel 12 to be made into a circular wire saw later; Among them, the second winding wheel 12 is driven to rotate by the fourth driving motor to provide traction for the tungsten wire rope 2, and at the same time the braking component of the unwinding wheel 11 provides braking force, which can ensure that the tungsten wire rope 2 between the unwinding wheel 11 and the second winding wheel 12 is in a straight state.

[0030] Set the speed to 30r / min to ensure that the straightening wheel 3 applies uniform pressure to the tungsten wire rope 2 during rotation. Too fast or too slow a speed may easily damage the tungsten wire rope 2. Set the temperature to 600℃-700℃ and the setting time to 1h to ensure that the tungsten wire rope 2 is fully heated and shaped, so that its internal stress is completely eliminated.

[0031] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. Ultra-fine tungsten wire rope straight preparation device for ultra-fine circular wire saw, characterized in that: include: A second straightening machine (1), wherein two groups of straightening parts are arranged on the second straightening machine (1), the second straightening parts include a plurality of second straightening wheels (3) arranged along the conveying direction of the tungsten wire rope (2), the second straightening wheels (3) of the two groups of the second straightening parts are staggered, and a second passing space is formed between the two groups of the second straightening parts for allowing the tungsten wire rope (2) to pass through, and the second straightening machine (1) rotates around the tungsten wire rope (2) at a set speed; A shaping machine (4) is provided at the front end of the second straightening machine (1) in the conveying direction of the tungsten wire rope (2), and is used to apply a set temperature to the tungsten wire rope (2) to eliminate its internal stress and shape it. The shaping machine (4) has an input end and an output end at both ends, the input end is used to receive the straightened tungsten wire rope (2), and the output end is used to output the heated and shaped tungsten wire rope (2).

2. The ultra-fine tungsten wire rope straight preparation device for an ultra-fine circular wire saw according to claim 1, characterized in that: The second straightening machine (1) comprises a rotating frame (5), and a plurality of the second straightening wheels (3) are rotatably arranged inside the rotating frame (5).

3. The ultra-fine tungsten wire rope straight preparation device for an ultra-fine circular wire saw according to claim 2, characterized in that: The second straightening machine (1) further comprises a driving assembly, wherein the driving assembly comprises a third driving machine, wherein the driving end of the third driving machine is coaxially fixedly connected to a transmission wheel, the rotating frame (5) is wrapped by a conveyor belt, and the rotating frame (5) and the transmission wheel are connected via a conveyor belt transmission.

4. The ultra-fine tungsten wire rope straight preparation device for an ultra-fine circular wire saw according to claim 1, characterized in that: The tungsten wire rope (2) comprises a first wire (6) and a plurality of second wires (7), wherein the plurality of second wires (7) are wound around the first wire (6) in a spiral form to form the tungsten wire rope (2).

5. The ultra-fine tungsten wire rope straight preparation device for an ultra-fine circular wire saw according to claim 4, characterized in that: It also includes a stranding machine (8), which is used to weave one first wire (6) and multiple second wires (7) into the tungsten wire rope (2).

6. The ultra-fine tungsten wire rope straight preparation device for an ultra-fine circular wire saw according to claim 5, characterized in that: A first straightening machine (9) is provided at the front end of the stranding machine (8) along the conveying direction of the tungsten wire rope (2), the first straightening machine (9) comprising two groups of first straightening parts arranged in an array, a first passing space being formed between the two groups of the first straightening parts for allowing the braided tungsten wire rope (2) to pass through, the first straightening part comprising a plurality of first straightening wheels (13) arranged in an array along the conveying direction of the tungsten wire rope (2), the first straightening wheels (13) of the two groups of the first straightening parts being staggered.

7. The ultra-fine tungsten wire rope straight preparation device for an ultra-fine circular wire saw according to claim 6, characterized in that: It also includes a first winding wheel (10), an unwinding wheel (11) and a second winding wheel (12), wherein the first winding wheel (10) and the unwinding wheel (11) are arranged between the first straightening machine (9) and the second straightening machine (1), and are arranged in sequence along the conveying direction of the tungsten wire rope (2), the first winding wheel (10) is used to wind the tungsten wire rope (2) straightened by the first straightening machine (9), and guide it to the unwinding wheel (11) for winding, and the unwinding wheel (11) is used to convey the tungsten wire rope (2) to the second straightening machine (1); The first winding wheel (10) is used to provide constant tension to the tungsten wire rope (2); The second winding wheel (12) is arranged on one side of the output end of the shaping machine (4) and is used to wind up the tungsten wire rope (2) after being heated and shaped; The unwinding wheel (11) is provided with a braking component for straightening the tungsten wire rope (2) between the unwinding wheel (11) and the second winding wheel (12).

8. The ultra-fine tungsten wire rope straight preparation device for an ultra-fine circular wire saw according to claim 7, characterized in that: The invention also includes a traction machine, which is arranged between the first winding wheel (10) and the first straightening machine (9). The traction machine is rotatably provided with a driving wheel and a driven wheel. The driving wheel is used to provide traction to the tungsten wire rope (2). After the tungsten wire rope (2) passes around the driving wheel and the driven wheel, it is wound by the first winding wheel (10).

9. A method for preparing an ultrafine tungsten wire rope for an ultrafine annular wire saw, using the ultrafine tungsten wire rope linear preparation device for an ultrafine annular wire saw according to any one of claims 1 to 8, characterized in that: The preparation method comprises: S01, selecting a first wire (6) and a plurality of second wires (7), and weaving the first wire (6) and the plurality of second wires (7) into a tungsten wire rope (2) by a stranding machine (8); S02, transporting the braided tungsten wire rope (2) to the first straightening machine (9) for the first straightening, and then winding it by the first winding wheel (10) and guiding it to the unwinding wheel (11); S03, the second straightening machine (1) receives the unwound tungsten wire rope (2) and performs rotational straightening on the tungsten wire rope (2) at a set rotation speed; S04, the shaping machine (4) receives the tungsten wire rope (2) after rotational straightening, applies a set temperature to it, heats and shapes it for a set time, and outputs it to the second winding wheel (12), and the second winding wheel (12) winds up the shaped tungsten wire rope (2).

10. The method for preparing an ultra-fine tungsten wire rope for an ultra-fine circular wire saw according to claim 9, characterized in that: The set speed is 30 r / min, the set temperature is 600° C.-700° C., and the set time is 1 hour.

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