Medical steel wire straightening and cutting equipment and medical torque wire forming method

Abstract

The invention relates to the technical field of medical instruments, in particular to medical steel wire straightening and cutting equipment and a medical torque wire forming method. The medical steel wire straightening and cutting equipment comprises a first straightening mechanism and a second straightening mechanism. The first straightening mechanism is provided with at least two rows of multiple first straightening pieces arranged in the first direction at intervals in the second direction, and each first straightening piece can rotate around the axis of the first straightening piece so as to conduct pre-straightening on the steel wire. The second straightening mechanism comprises a straightening support capable of rotating and a plurality of second straightening pieces connected to the straightening support, each second straightening piece comprises a straightening end which can move in the direction perpendicular to the rotating axis, at least part of the straightening ends are provided with flexible protection pieces, and the flexible protection pieces are used for making contact with the steel wires so as to reduce abrasion to the steel wires; the straightening end has the tendency of extruding towards the steel wire in the direction perpendicular to the rotating axis and is used for conducting secondary straightening on the steel wire so that self-adaptive adjustment can be conducted according to the steel wires of different specifications, manual adjustment is not needed, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical instrument manufacturing, in particular to a medical steel wire straightening and cutting device and a medical torque wire forming method. BACKGROUND

[0002] The field of view of an endoscope is mainly at the front end of the camera, and the interaction between the endoscope and the tissue outside the field of view is often invisible. In clinical practice of manually operating the endoscope, the doctor can judge the interaction between the tip and the tissue by perceiving the torque on the control knob at the handle and combining rich clinical experience. In order to improve the accuracy and safety of treatment, the torque performance and wear resistance of the torque wire are required to be high. At present, the raw material of the medical torque wire is steel wire, which is prone to deformation due to being too thin and too long, and the straightness of the steel wire affects the performance of the torque wire, so the steel wire needs to be straightened multiple times before use.

[0003] In related technologies, the steel wire straightening and cutting device is usually provided with a straightening mechanism, which is constructed with a straightening contact surface to extrude the steel wire to achieve straightening. However, when producing different specifications of steel wire, the position of the straightening contact surface needs to be manually adjusted each time to ensure sufficient contact pressure. The straightening structure has multiple straightening contact surfaces arranged at intervals, which needs to be adjusted multiple times, and the operation is complicated, affecting the production efficiency. Moreover, the manual adjustment has low precision, which easily causes poor straightening effect or over-straightening, causing serious wear of the steel wire. Since the precision requirement of the torque wire formed by the steel wire in the medical field is relatively high, the production quality required by the medical instrument is not easily met. SUMMARY

[0004] Therefore, it is necessary to provide a medical steel wire straightening and cutting device to reduce the wear of the straightening mechanism on the steel wire and ensure the straightening effect.

[0005] The medical wire straightening and cutting equipment includes a conveying mechanism, a first straightening mechanism, a second straightening mechanism, a traction mechanism and a cutting mechanism; the conveying mechanism is used to convey the steel wire; the first straightening mechanism and the second straightening mechanism are sequentially arranged at the output end of the conveying mechanism along the first direction; the traction mechanism is arranged at the output end of the second straightening mechanism along the first direction, for pulling the steel wire from the second straightening mechanism; the cutting mechanism is placed at the output end of the traction mechanism along the first direction, for cutting the steel wire from the traction mechanism; wherein, the first straightening mechanism is provided with at least two rows of a plurality of first straightening members spaced apart along the first direction along the second direction, and the first straightening members of two adjacent rows are spaced apart by When passing the steel wire, each of the first straightening parts can rotate around its own axis to pre-straighten the steel wire; the first direction and the second direction are set at an angle; the second straightening mechanism includes a rotatable straightening bracket and a plurality of second straightening parts connected to the straightening bracket, and the plurality of second straightening parts are arranged on both sides of the rotation axis of the straightening bracket and are respectively spaced along the first direction; the second straightening part includes a straightening end movable in a direction perpendicular to the rotation axis, and at least part of the straightening end is provided with a flexible protective part, which acts on the steel wire, and the straightening end has a tendency to squeeze toward the steel wire in a direction perpendicular to the rotation axis, for performing secondary straightening of the steel wire.

[0006] It is understandable that the conveying mechanism can convey the steel wire to the first straightening mechanism and the second straightening mechanism, and the traction mechanism continuously pulls the steel wire to move. The first straightening mechanism can pre-straighten the steel wire, and the pre-straightened steel wire is then straightened for the second time by the second straightening mechanism to improve the straightening effect. In the second straightening mechanism, the straightening end is movable in a direction perpendicular to the rotation axis and always has a tendency to squeeze toward the steel wire, so that the straightening end can maintain the pressure on the steel wire to straighten the steel wire while also making adaptive adjustments according to steel wires of different specifications, without the need to manually adjust multiple second straightening parts in sequence, which helps save time and improve production efficiency. In addition, a flexible protective member is provided at the straightening end to reduce wear on the steel wire while squeezing the steel wire, thereby improving production quality.

[0007] In an optional embodiment, the straightening end is convexly provided to form an arc-shaped surface, and the flexible protective member at least covers the vertex of the arc-shaped surface.

[0008] In an optional embodiment, the second straightening mechanism includes a pressure regulating member, the pressure regulating member is mounted on the second straightening member and can be pressed against the straightening end, and the pressure regulating member is compressible in a direction perpendicular to the rotation axis; The second straightening member is provided with a limiting part on the side away from the straightening head in the direction perpendicular to the rotation axis; the pressure adjusting member comprises a first elastic member connected and pressed between the straightening head and the limiting part; And / or, the pressure adjusting member comprises a pressure cylinder filled with compressible fluid, and the straightening head is inserted into the pressure cylinder and presses the fluid.

[0009] In an optional embodiment, the first straightening mechanism comprises two first straightening support seats, a first connecting rod and a second elastic member; The two first straightening support seats are arranged at intervals in the second direction, and each first straightening support seat is rotatably installed with the first straightening member; the first connecting rod is simultaneously provided through the two first straightening support seats and can be locked; and the second elastic member is sleeved on the first connecting rod and is pressed between the two first straightening support seats in the second direction.

[0010] In an optional embodiment, the traction mechanism comprises a traction support seat, two spaced traction shafts and a traction transmission assembly, each traction shaft is rotatably connected to the traction support seat, and the two traction shafts are drivingly connected through the traction transmission assembly to synchronously and reversely rotate relative to the traction support seat; the traction mechanism has a traction gap between the two traction shafts for passing the steel wire; The traction mechanism further comprises a floating block and a limiting block capable of abutting against each other, the floating block and the limiting block are both installed on the traction support seat, one of the traction shafts is provided through the floating block, and the other traction shaft is provided through the limiting block; The traction mechanism further comprises a third elastic member; along the radial direction of the traction shaft, one end of the third elastic member is connected to the traction support seat, and the other end is connected to the floating block, and the elastic force of the third elastic member can drive the floating block to be pressed towards the limiting block.

[0011] In an optional embodiment, the conveying mechanism comprises a spaced wire drum, a first wire winding disc and a metering wire winding member, the first wire winding disc is arranged between the wire drum and the metering wire winding member, the metering wire winding member is arranged at the input end of the first straightening mechanism, and the steel wire is tensioned between the wire drum, the first wire winding disc and the metering wire winding member and output to the first straightening mechanism.

[0012] In an optional embodiment, the cutting mechanism comprises a cutting movable assembly and a cutting support seat, the cutting support seat forms a material return hole arranged through, and at least part of the structure of the cutting movable assembly is arranged on the side of the material return hole outputting the steel wire; The cutting activity assembly comprises a cutter, an electromagnetic pusher and a fourth elastic member, one end of the cutter is connected to the electromagnetic pusher, the other end is connected to the fourth elastic member, between the electromagnetic pusher and the fourth elastic member, the cutter is rotationally connected to the cutting support seat, one end of the fourth elastic member away from the cutter is connected to the cutting support seat, the electromagnetic pusher is electrically connected with the metering winding member, and is configured to push the cutter to rotate around the rotation axis in response to a metering signal of the metering winding member.

[0013] In an optional embodiment, the cutting mechanism further comprises an adjusting assembly, the adjusting assembly comprises a first adjusting structure and a second adjusting structure, the first adjusting structure is connected between the cutter and the electromagnetic pusher, and the cutter is rotationally connected with the cutting support seat through the second adjusting structure. The first adjusting structure comprises a second connecting rod connected to the electromagnetic pusher, a first connecting arm and a second connecting arm; the second connecting rod extends along the axial direction of the material returning hole; the first connecting arm and the second connecting arm are connected and arranged at an angle, the first connecting arm is sleeved and connected to the second connecting rod and is at an angle with the second connecting rod, and the second connecting arm is connected to the cutter and is at an angle with the cutter. The second adjusting structure comprises a rotation connecting piece, a fifth elastic member and an adjusting locking piece, the rotation connecting piece is arranged through the cutter and the cutting support seat and connected with the cutter; the fifth elastic member is arranged on the side of the cutting support seat away from the cutter and sleeved on the rotation connecting piece, the adjusting locking piece is connected to the rotation connecting piece, and the fifth elastic member is limited between the adjusting locking piece and the cutting support seat.

[0014] In an optional embodiment, the steel wire straightening and cutting device further comprises a driving mechanism, the driving mechanism has first and second power output ends arranged at an angle, one of the first and second power output ends is drivingly connected to the second straightening mechanism, and the other is drivingly connected to the traction mechanism.

[0015] The application also provides a medical torque wire forming method, comprising the following steps: Step one: straightening and cutting the steel wire; Step two: heat treating the cut steel wire; Step three: cooling the heat-treated steel wire; Step four: sequentially performing acid cleaning, alkaline cleaning and clean water cleaning on the cooled steel wire; Step five: low-temperature baking the cleaned steel wire to form a torque wire; Wherein, in the step one, the medical steel wire straightening and cutting device is adopted, comprising the following steps: Step A: the steel wire is input to the conveying mechanism; Step B: the traction mechanism pulls the steel wire, the steel wire is conveyed from the conveying mechanism to the first straightening mechanism for pre-straightening, and then is conveyed to the second straightening mechanism for secondary straightening, and the straightened steel wire is conveyed to the cutting mechanism; Step C: the cutting mechanism cuts the steel wire.

[0016] The present application can realize secondary straightening of the steel wire to improve the straightening effect of the steel wire and improve the straightening efficiency of the steel wire by setting the first straightening structure and the second straightening mechanism. At the same time, by setting the straightening end of the second straightening member to be movable while maintaining the pressure on the steel wire, the adaptability adjustment for different steel wires can be realized without frequent manual adjustment, thereby improving the production efficiency. In addition, by setting the flexible protective member on the straightening end to have a protective effect on the steel wire while the straightening end has a extrusion effect on the steel wire, the wear of the steel wire is reduced, thereby improving the production quality of the steel wire to meet the high quality requirements of the torque wire formed by the steel wire in medical devices. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 A structural schematic diagram of the medical steel wire straightening and cutting device provided by the present application is shown in the figure. Figure 2 A top view of the second straightening mechanism in the medical steel wire straightening and cutting device provided by the present application is shown in the figure. Figure 3 A structural schematic diagram of the second straightening mechanism in the medical steel wire straightening and cutting device provided by the present application is shown in the figure. Figure 4 A structural schematic diagram of the first straightening mechanism in the medical steel wire straightening and cutting device provided by the present application is shown in the figure. Figure 3 A local enlarged view of A in the figure. Figure 5 A structural schematic diagram of the first straightening mechanism in the medical steel wire straightening and cutting device provided by the present application is shown in the figure. Figure 6 A structural schematic diagram of the traction mechanism in the medical steel wire straightening and cutting device provided by the present application is shown in the figure. Figure 7 A front view of the traction mechanism in the medical steel wire straightening and cutting device provided by the present application is shown in the figure. Figure 8 FIG. 7 is a perspective view of a driving mechanism in a medical steel wire straightening and cutting device according to an embodiment of the present application; Figure 9 FIG. 8 is a structural schematic view of a cutting mechanism in a medical steel wire straightening and cutting device according to an embodiment of the present application; Figure 10 FIG. 9 is a front view of a cutting mechanism in a medical steel wire straightening and cutting device according to an embodiment of the present application.

[0019] Fig. 100, medical steel wire straightening and cutting device; 10, conveying mechanism; 11, wire drum; 12, first wire winding disc; 13, metering winding member; 20, first straightening mechanism; 21, first straightening member; 22, first straightening support seat; 23, first connecting rod; 24, second elastic member; 30, second straightening mechanism; 31, second straightening support seat; 32, straightening support; 3201, guide hole; 3202, assembly opening; 33, second straightening member; 331, straightening end; 332, limiting portion; 34, flexible protection member; 35, sleeve; 36, first elastic member; 37, straightening locking member; 40, traction mechanism; 41, traction support seat; 42, traction shaft; 43, traction transmission assembly; 431, traction transmission gear; 44, floating block; 45, limiting block; 46, third elastic member; 50, driving mechanism; 501, first power output end; 502, second power output end; 51, first transmission assembly; 52, second transmission assembly; 53, reversing transmission assembly; 54, driving member; 60, cutting mechanism; 61, cutting support seat; 611, material returning hole; 62, cutting movable assembly; 621, cutting knife; 622, electromagnetic pusher; 623, fourth elastic member; 63, adjusting assembly; 631, first adjusting structure; 6311, second connecting rod; 6312, first connecting arm; 6313, second connecting arm; 632, second adjusting structure; 6321, rotating connecting member; 6322, fifth elastic member; 6323, adjusting locking member; 70, mounting frame. DETAILED DESCRIPTION

[0020] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is to be understood that the present application is not limited to the specific embodiments described below.

[0021] It is to be understood that when a component is referred to as being "on" or "connected to" another component, it can be directly on or connected to the other component, or intervening components can be present. When a component is referred to as being "connected to" another component, it can be directly connected to the other component, or intervening components can be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms as used in this description are merely used for convenience and are not intended to be limiting as to the position of the components.

[0022] In addition, the terms "first", "second", etc. are used herein only to describe various conditions, and are not intended to denote relative importance or a quantity of the indicated conditions. Thus, a feature defined with "first" or "second" can include at least one of the feature, explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0023] In the present application, unless otherwise explicitly specified and limited, "on", "under", "below", "over", and "above" of a first feature to a second feature can mean that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "over", "above", and "on" of a first feature to a second feature can mean that the first feature is directly above or obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. "Under", "below", and "under" of a first feature to a second feature can mean that the first feature is directly below or obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0024] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. The use of the terms "and / or" in the description of the present application includes a set of one or more associated listed items.

[0025] Please refer to Figures 1 to 10The present application provides a medical steel wire straightening and cutting device 100, which is used to straighten and cut steel wires so that they can be subsequently processed into torque wires. The medical steel wire straightening and cutting device 100 includes a conveying mechanism 10, a first straightening mechanism 20, a second straightening mechanism 30, a traction mechanism 40, and a cutting mechanism 60. The first straightening mechanism 20 and the second straightening mechanism 30 are sequentially arranged at the output end of the conveying mechanism 10 along the first direction. The conveying mechanism 10 is used to convey the steel wire to the first straightening mechanism 20. The first straightening mechanism 20 can pre-straighten the steel wire and reduce the part of the steel wire that is greatly bent. The second straightening mechanism 30 is used to straighten the steel wire for the second time to further straighten the part of the steel wire that is still bent after pre-straightening, thereby improving the straightening effect of the steel wire and improving production quality. The traction mechanism 40 is arranged at the output end of the second straightening mechanism 30 along the first direction, and is used to pull the steel wire from the second straightening mechanism 30 to promote continuous conveying of the steel wire. The cutting mechanism 60 is placed at the output end of the traction mechanism 40 along the first direction, and is used to cut the steel wire from the traction mechanism 40 .

[0026] Among them, the first direction and the second direction are set at an angle, and are respectively set at an angle to the height direction of the medical wire straightening and cutting equipment 100. For the sake of convenience of explanation, the first direction, the second direction and the height direction are set perpendicular to each other, and the first direction is the x-axis, the second direction is the y-axis, and the height direction is the z-axis.

[0027] like Figure 1 As shown, in an optional embodiment, the conveying mechanism 10 includes a wire drum 11, a first wire winding reel 12, and a metering wire winding member 13, which are arranged at intervals. The first wire winding reel 12 is arranged between the wire drum 11 and the metering wire winding member 13, and the metering wire winding member 13 is arranged at the input end of the first straightening mechanism 20. The wire drum 11 is used to store steel wire. Under the traction force of the traction mechanism 40, the steel wire is continuously conveyed from the wire drum 11 toward the first straightening mechanism 20. The first wire winding reel 12 is used to tension the steel wire, so that the steel wire is kept in a tensioned state and conveyed to the metering wire winding member 13, which facilitates the metering wire winding member 13 to more accurately measure the length of the steel wire. The metering wire winding member 13 outputs the steel wire to the first straightening mechanism 20. Exemplarily, the metering wire winding member 13 includes a second wire winding reel and a metering encoder provided on the second wire winding reel, and the metering encoder is used to measure the length of the steel wire passing through the second wire winding reel.

[0028] like Figure 5As shown in the optional embodiment, the first straightening mechanism 20 is provided with at least two rows of first straightening pieces 21 along the first direction and spaced along the second direction, a steel wire is arranged between the first straightening pieces 21 of the adjacent two rows, each first straightening piece 21 can rotate around its own axis, and the outer surface of each first straightening piece 21 can contact the steel wire to pre-straighten the steel wire, so as to reduce the large bending of the steel wire. In a specific embodiment, as the steel wire is continuously pulled by the traction mechanism 40, the steel wire moves while driving the first straightening piece 21 to rotate, thereby eliminating the need for an additional power source and achieving high efficiency and energy saving.

[0029] As shown in the optional embodiment, the first straightening mechanism 20 is provided with at least two rows of first straightening pieces 21 along the first direction and spaced along the second direction, a steel wire is arranged between the first straightening pieces 21 of the adjacent two rows, each first straightening piece 21 can rotate around its own axis, and the outer surface of each first straightening piece 21 can contact the steel wire to pre-straighten the steel wire, so as to reduce the large bending of the steel wire. In a specific embodiment, as the steel wire is continuously pulled by the traction mechanism 40, the steel wire moves while driving the first straightening piece 21 to rotate, thereby eliminating the need for an additional power source and achieving high efficiency and energy saving. Figure 5 As shown in the optional embodiment, the first straightening mechanism 20 includes two first straightening support seats 22, a first connecting rod 23, and a second elastic member 24. The two first straightening support seats 22 are spaced along the second direction, and each first straightening support seat 22 is rotatably mounted with a first straightening piece 21 to support the rotation of the first straightening piece 21. The first connecting rod 23 is arranged through the two first straightening support seats 22, and the second elastic member 24 is sleeved on the first connecting rod 23 and is arranged between the two first straightening support seats 22 along the second direction. This facilitates adjusting the elastic deformation amount of the second elastic member 24 according to different specifications of the steel wire, thereby changing the distance between the two first straightening support seats 22 to adjust the position of the first straightening piece 21 along the second direction, and ensuring the effect of extrusion straightening of the steel wire. The first connecting rod 23 can be locked after adjusting the distance between the two first straightening support seats 22. The first connecting rod 23 also limits and guides the elastic deformation of the second elastic member 24, which facilitates the deformation of the second elastic member 24 along the extension direction of the first connecting rod 23, thereby improving the stability of the first straightening piece 21 when moving along the second direction.

[0030] As shown in the optional embodiment, the first straightening mechanism 20 is provided with at least two rows of first straightening pieces 21 along the first direction and spaced along the second direction, a steel wire is arranged between the first straightening pieces 21 of the adjacent two rows, each first straightening piece 21 can rotate around its own axis, and the outer surface of each first straightening piece 21 can contact the steel wire to pre-straighten the steel wire, so as to reduce the large bending of the steel wire. In a specific embodiment, as the steel wire is continuously pulled by the traction mechanism 40, the steel wire moves while driving the first straightening piece 21 to rotate, thereby eliminating the need for an additional power source and achieving high efficiency and energy saving. Figure 5 As shown in the specific embodiment, one end of the first connecting rod 23 is arranged through one of the first straightening support seats 22 and is threadedly connected, and the other end is arranged through the other first straightening support seat 22 and abuts against the limiting end face of the other first straightening support seat 22. In this way, by rotating the first connecting rod 23, the length of the first connecting rod 23 inserted into one of the first straightening support seats 22 can be adjusted, and under the action of the elastic force of the second elastic member 24, the other first straightening support seat 22 is always abutted against the limiting end face, thereby adjusting the distance between the two first straightening support seats 22 to adjust the position of the first straightening piece 21 along the second direction.

[0031] As shown in the optional embodiment, the first straightening mechanism 20 is provided with at least two rows of first straightening pieces 21 along the first direction and spaced along the second direction, a steel wire is arranged between the first straightening pieces 21 of the adjacent two rows, each first straightening piece 21 can rotate around its own axis, and the outer surface of each first straightening piece 21 can contact the steel wire to pre-straighten the steel wire, so as to reduce the large bending of the steel wire. In a specific embodiment, as the steel wire is continuously pulled by the traction mechanism 40, the steel wire moves while driving the first straightening piece 21 to rotate, thereby eliminating the need for an additional power source and achieving high efficiency and energy saving. Figures 1 to 4As shown, in an optional embodiment, the second straightening mechanism 30 includes a rotatable straightening bracket 32 ​​and a plurality of second straightening members 33 connected to the straightening bracket 32. The plurality of second straightening members 33 are arranged on both sides of the rotation axis of the straightening bracket 32 ​​and are spaced apart along the first direction. The steel wire passes between two rows of second straightening members 33. The steel wire passes through the plurality of second straightening members 33 in sequence during the movement. The second straightening members 33 act on the steel wire to perform a second straightening while following the rotation of the straightening bracket 32. Since the straightening bracket 32 ​​can drive the second straightening members 33 to rotate accordingly, the plurality of second straightening members 33 can perform a comprehensive straightening of the steel wire circumference, so as to perform a more refined straightening of the small-amplitude curved structure remaining in the steel wire after pre-straightening, thereby improving the straightening effect.

[0032] like Figures 2 to 4 As shown, in a specific embodiment, the second straightening member 33 includes a straightening end 331 that is movable in a direction perpendicular to the rotation axis. The second straightening member 33 acts on the steel wire through the straightening end 331 to straighten the steel wire. The straightening end 331 has a tendency to squeeze toward the steel wire in a direction perpendicular to the rotation axis. Figure 4 As shown, in a specific embodiment, at least part of the straightening end 331 is provided with a flexible protective member 34, and the flexible protective member 34 is used to contact the steel wire so that the straightening end 331 has an extrusion effect on the steel wire while reducing the wear on the steel wire, having a protective effect on the steel wire, ensuring the accuracy of the steel wire, and helping to improve the production quality of the steel wire.

[0033] like Figures 2 to 4 As shown, in a specific embodiment, the straightening end 331 is convexly formed into an arc-shaped surface, and the flexible protective member 34 covers at least the vertex of the arc-shaped surface. In this way, the straightening end 331 forms a single-point action with the steel wire through the flexible protective member 34. The area of ​​the applied force is small, and the pressure on the steel wire is greater. This can achieve a good straightening effect on the structure of the steel wire with a small amplitude bend during the second straightening, and protect the steel wire from wear, minimizing the reduction in the wear resistance of the steel wire due to excessive straightening pressure. For example, the flexible protective member 34 can be made of materials such as silicone and rubber, and can be attached to the straightening end 331 by bonding, tying, or other methods.

[0034] In some embodiments, the straightening end 331 can also move perpendicular to the rotation axis according to the different specifications of the steel wire to achieve adaptive adjustment, and always exerts a pressing force on the steel wire to ensure the straightening effect after adjustment. This configuration eliminates the need to manually adjust the position of the second straightening member 33 perpendicular to the rotation axis according to the different specifications of the steel wire, saving time and improving production efficiency.

[0035] In summary, the first straightening member 21 and the second straightening member 33 are arranged to straighten the steel wire twice, and the straightening end 331 in the second straightening member 33 can be self-adaptively adjusted according to different steel wires. On the basis of ensuring the pressure setting force and the straightening effect, the manpower and time cost are saved, the flexible protective member 34 is arranged to protect the steel wire, the wear of the steel wire in the straightening process is reduced, the production efficiency and quality of the torque wire formed by the steel wire are improved, the wear resistance of the torque wire formed by the steel wire is enhanced, the service life of the torque wire is prolonged, and the quality requirements of the medical torque wire are met.

[0036] As shown in Figure 2 In some other embodiments, the medical steel wire straightening and cutting device 100 further comprises a sleeve 35 installed in the middle of the straightening support 32, which is located between the two second straightening members 33 in the direction perpendicular to the rotation axis and extends in the direction of the rotation axis. When the steel wire enters the second straightening mechanism 30, it can pass through the sleeve 35 under the traction of the traction mechanism 40, the straightening end 331 is pressed on the sleeve 35 and transmits force to the internal steel wire, which further enhances the protection of the steel wire while achieving the straightening effect of extruding the steel wire.

[0037] In optional embodiments, the second straightening mechanism 30 comprises a pressure adjusting member installed on the second straightening member 33 and capable of being pressed on the straightening end 331. The pressure adjusting member is arranged to have a pressure on the straightening end 331 towards the side of the rotation axis, so that the straightening end 331 has the tendency to extrude the steel wire. Further, the pressure adjusting member is compressible in the direction perpendicular to the rotation axis. The steel wire has a reaction force on the straightening end 331 and transmits it to the pressure adjusting member through the straightening end 331, and the pressure adjusting member generates a corresponding compression amount. In this way, the straightening end 331 can move in the direction perpendicular to the rotation axis according to different specifications of the steel wire, realizing self-adaptive adjustment of the straightening end 331.

[0038] As shown in Figures 2 to 4 In a specific embodiment, the second straightening member 33 is provided with a limiting portion 332 on the side away from the straightening end 331 in the direction perpendicular to the rotation axis. The pressure adjusting member comprises a first elastic member 36 connected and pressed between the straightening end 331 and the limiting portion 332. The first elastic member 36 has an elastic force on the straightening end 331, so that the straightening end 331 has the effect of extruding the steel wire. At the same time, the first elastic member 36 can also elastically deform correspondingly to realize self-adaptive adjustment of the straightening end 331 when straightening different specifications of the steel wire.

[0039] In another specific embodiment, the pressure adjusting member comprises a pressure cylinder filled with compressible fluid, and the straightening tip 331 is inserted into the pressure cylinder and presses the fluid. The fluid is usually gas for easy compression. The fluid can generate pressure on the straightening tip 331, so that the straightening tip 331 has a pressing effect on the steel wire, and at the same time, when straightening different specifications of steel wires, the straightening tip 331 can also correspondingly change the compression amount of the pressing fluid, so that the straightening tip 331 generates a corresponding movement stroke to realize the adaptive adjustment of the straightening tip 331.

[0040] Of course, the first elastic member 36 and the pressure cylinder can also be combined and used to enhance the straightening effect on the steel wire.

[0041] As shown in Figures 2 to 4 In an optional embodiment, the second straightening mechanism 30 further comprises a second straightening support seat 31, and the straightening support frame 32 is rotationally connected to the second straightening support seat 31, and the second straightening support seat 31 is used to support the rotation of the straightening support frame 32. The straightening support frame 32 is provided with a guide hole 3201 penetrating in the first direction, and the guide hole 3201 is used to pass the steel wire. In this way, the steel wire continuously passes through the straightening support frame 32 from the guide hole 3201 under the traction of the traction mechanism 40.

[0042] As shown in Figures 2 to 4 In a further embodiment, the plurality of second straightening members 33 on both sides of the rotation axis are arranged in a staggered manner along the direction of the rotation axis. It can be understood that when the steel wire is bent, there is usually a situation that, for example, the steel wire has a first segment and a second segment connected to the first segment, and the first segment is bent towards one of the second straightening members 33 on one side of the rotation axis, and the second segment is usually bent towards the other second straightening member 33 on the other side of the rotation axis under the action of stress. Therefore, through the staggered arrangement of the plurality of second straightening members 33, the plurality of second straightening members 33 can simultaneously contact the structures of different bending directions at different positions of the steel wire and straighten them. For example, among the two adjacent second straightening members 33, one of the second straightening members 33 contacts the first segment to straighten the first segment, and the other second straightening member 33 contacts the second segment to straighten the second segment. The combined effect of the staggered arrangement of the plurality of second straightening members 33 and the rotation of the straightening support frame 32 can simultaneously straighten the structures bent in different directions.

[0043] As shown in Figure 3As shown in the specific embodiment, the straightening support 32 is provided with an assembly opening 3202 penetrating in the direction perpendicular to the rotation axis, the assembly opening 3202 extends in the direction of the rotation axis, and the second straightening member 33 is arranged in the assembly opening 3202 in the direction away from the rotation axis. The second straightening mechanism 30 further comprises a straightening locking member 37, which is sleeved on the part of the second straightening member 33 extending out of the assembly opening 3202 and is locked. For example, the straightening locking member 37 is a nut, which is threadedly connected with the second straightening member 33, and is sleeved on the second straightening member 33 and locked by screwing until the nut abuts against the straightening support 32.

[0044] As shown in the specific embodiment, Figure 6 and Figure 7 As shown in an optional embodiment, the traction mechanism 40 comprises a traction support seat 41, two spaced traction shafts 42 and a traction transmission assembly 43, each traction shaft 42 is rotationally connected to the traction support seat 41, and the traction support seat 41 supports the rotation of the traction shaft 42. Further, the two traction shafts 42 are drivingly connected through the traction transmission assembly 43 to rotate synchronously and reversely relative to the traction support seat 41. The two traction shafts 42 have a traction gap for penetrating the steel wire, so that the steel wire passes through the traction gap. The two traction shafts 42 can respectively contact the steel wire, and the rotation directions of the two traction shafts 42 are opposite, so as to synchronously form parallel traction forces on both sides of the steel wire to continuously move the steel wire.

[0045] As shown in the specific embodiment, Figure 7 In a specific embodiment, the traction transmission assembly 43 comprises two meshing transmission traction gears 431, one of which is installed on one of the traction shafts 42, and the other is installed on the other traction shaft 42, and the power transmission is achieved through the two meshing transmission traction gears 431 to make the two traction shafts 42 rotate synchronously and reversely.

[0046] As shown in the specific embodiment, Figure 6 and Figure 7 In a specific embodiment, the traction mechanism 40 further comprises a floating block 44 and a limiting block 45 capable of abutting against each other, the floating block 44 and the limiting block 45 are both installed on the traction support seat 41, one of the traction shafts 42 penetrates the floating block 44 and can rotate relative to the floating block 44, and the other traction shaft 42 penetrates the limiting block 45 and can rotate relative to the limiting block 45. When the steel wire is not penetrated in the traction gap, the floating block 44 and the limiting block 45 can abut against each other, and when the steel wire passes through the traction gap, the floating block 44 and the limiting block 45 have a gap therebetween.

[0047] Further, the traction mechanism 40 further comprises a third elastic member 46. The third elastic member 46 is connected to the traction support base 41 at one end and connected to the floating block 44 at the other end in the radial direction of the traction shaft 42. The elastic force of the third elastic member 46 can drive the floating block 44 to press against the limiting block 45, thereby promoting the mutual extrusion of the two traction shafts 42 to the steel wire, ensuring the traction effect on the steel wire. At the same time, according to the different thicknesses of the steel wire, the third elastic member 46 can correspondingly elastically deform to adjust the deformation amount of the third elastic member 46, while ensuring the traction of the steel wire, it can adapt to steel wires of different diameters and avoid the steel wire from being stuck.

[0048] In optional embodiments, the medical steel wire straightening and cutting device 100 further comprises a driving mechanism 50, the driving mechanism 50 has an angularly arranged first power output end 501 and a second power output end 502, one of the first power output end 501 and the second power output end 502 is drivingly connected to the second straightening mechanism 30, and the other is drivingly connected to the traction mechanism 40, so as to realize synchronous transmission of the second straightening mechanism 30 and the traction mechanism 40.

[0049] As shown in the specific embodiments, Figure 8 the driving mechanism 50 comprises a driving member 54, a first transmission assembly 51, a second transmission assembly 52 and a reversing transmission assembly 53. The driving member 54 is a motor having an output shaft, and the reversing transmission assembly 53 is drivingly connected to the output shaft and forms the angularly arranged first power output end 501 and the second power output end 502 to realize power output in different directions. The first transmission assembly 51 is connected between the first power output end 501 and the second straightening mechanism 30 to realize power transmission, and the second transmission assembly 52 is connected between the second power output end 502 and the traction mechanism 40 to realize power transmission. Such arrangement can realize synchronous rotation of the straightening support 32 and the traction shaft 42 with different rotation directions while only one driving member 54 is needed, which is beneficial to save the space occupied by the driving mechanism 50.

[0050] In specific embodiments, the reversing transmission assembly 53 comprises a driving gear, a driven gear, a worm and a worm shaft. The output shaft is drivingly connected to the driving gear, the driving gear is in meshing transmission with the driven gear, the driven gear is mounted on the worm to drive the rotation of the worm, the worm is in meshing transmission with the worm shaft, and the first power output end 501 is formed at one end of the worm away from the driven gear, and the second power output end 502 is formed by the rotating shaft of the worm.

[0051] As shown in the specific embodiments, Figure 1 the first transmission assembly 51 and the second transmission assembly 52 can respectively adopt a belt transmission mode, which generally has the characteristics of smooth operation. In other embodiments, other modes such as gear transmission can also be used.

[0052] As shown in the specific embodiments, Figure 9and Figure 10 As shown in further embodiments, the cutting mechanism 60 comprises a cutting movable assembly 62 and a cutting support base 61, the cutting support base 61 forms a material returning hole 611 arranged through in the first direction, and at least part of the structure of the cutting movable assembly 62 is arranged on one side of the material returning hole 611 outputting the steel wire. In this way, the steel wire can pass through the material returning hole 611, and the cutting movable assembly 62 cuts the steel wire output from the material returning hole 611.

[0053] As shown in Figure 9 and Figure 10 In specific embodiments, the cutting movable assembly 62 comprises a cutting knife 621, an electromagnetic pusher 622 and a fourth elastic member 623, one end of the cutting knife 621 is connected to the electromagnetic pusher 622, and the other end is connected to the fourth elastic member 623. Between the electromagnetic pusher 622 and the fourth elastic member 623, the cutting knife 621 is rotationally connected to the cutting support base 61, one end of the fourth elastic member 623 away from the cutting knife 621 is connected to the cutting support base 61, and the electromagnetic pusher 622 can push the cutting knife 621 to rotate, and the cutting knife 621 is rotated to cut the steel wire, which is simple to operate. In the process of rotating the cutting knife 621, the fourth elastic member 623 can be elastically deformed, and after the electromagnetic pusher 622 is powered off, the fourth elastic member 623 can drive the cutting knife 621 to reset.

[0054] In specific embodiments, the electromagnetic pusher 622 is electrically connected to the aforementioned metering wire winding member 13 of the conveying mechanism 10, and is configured to rotate the cutting knife 621 around the rotation axis in response to the metering signal of the metering wire winding member 13, so as to realize accurate cutting of the length of the steel wire. The medical steel wire straightening and cutting device 100 further comprises a controller, which can transmit the metering signal to the controller when the metering wire winding member 13 meters the required length of the steel wire, and the controller processes the metering signal and sends corresponding control instructions to drive the electromagnetic pusher 622 to actuate the cutting knife 621.

[0055] As shown in Figure 9 and Figure 10 In specific embodiments, the cutting mechanism 60 further comprises an adjusting assembly 63, the adjusting assembly 63 comprises a first adjusting structure 631 and a second adjusting structure 632, the first adjusting structure 631 is connected between the cutting knife 621 and the electromagnetic pusher 622 to adjust the distance between the cutting knife 621 and the electromagnetic pusher 622. The cutting knife 621 is rotationally connected to the cutting support base 61 through the second adjusting structure 632, and the second adjusting structure 632 can adapt to the adjustment of the first adjusting structure 631, so that the cutting knife 621 adjusts the same distance relative to the cutting support base 61 at the rotationally connected place. Through the cooperation of the first adjusting structure 631 and the second adjusting structure 632, the cutting position of the cutting knife 621 relative to the steel wire output from the material returning hole 611 is adjusted.

[0056] As shown in Figure 9 and Figure 10 In specific embodiments, the first adjusting structure 631 includes a second connecting rod 6311 connected to the electromagnetic pusher 622, a first connecting arm 6312 and a second connecting arm 6313; the second connecting rod 6311 extends along the axial direction of the material returning hole 611; the first connecting arm 6312 and the second connecting arm 6313 are connected and arranged at an angle, the first connecting arm 6312 is sleeved and connected to the second connecting rod 6311 and is arranged at an angle with the second connecting rod 6311, and the second connecting arm 6313 is connected to the cutter 621 and is arranged at an angle with the cutter 621. In this way, the cutter 621 and the electromagnetic pusher 622 are connected and power transmission is realized through the second connecting rod 6311, the first connecting arm 6312 and the second connecting arm 6313, and at the same time, the distance between the cutter 621 and the electromagnetic pusher 622 can be adjusted by adjusting the connecting position of the first connecting arm 6312 relative to the second connecting rod 6311.

[0057] In specific embodiments, the first connecting arm 6312 and the second connecting rod 6311 are threadedly connected, and the position of the first connecting arm 6312 along the extension direction of the second connecting rod 6311 is moved by rotating the second connecting rod 6311.

[0058] As shown in Figure 9 and Figure 10 In specific embodiments, the second adjusting structure 632 includes a rotating connecting piece 6321, a fifth elastic piece 6322 and an adjusting locking piece 6323, the rotating connecting piece 6321 is arranged through the cutter 621 and the cutting support seat 61 and is connected to the cutter 621; the fifth elastic piece 6322 is arranged on the side of the cutting support seat 61 away from the cutter 621 and is sleeved on the rotating connecting piece 6321, the adjusting locking piece 6323 is connected to the rotating connecting piece 6321, and the fifth elastic piece 6322 is limited between the adjusting locking piece 6323 and the cutting support seat 61. In this way, when the first adjusting structure 631 adjusts the distance between the cutter 621 and the electromagnetic pusher 622, the cutter 621 transmits the force generated at the first adjusting structure 631 to the second adjusting structure 632, and the second adjusting structure 632 can correspondingly adjust the distance between the cutter 621 and the cutting support seat 61 through the elastic deformation of the fifth elastic piece 6322, thereby realizing the adjustment of the cutting position of the cutter 621 relative to the steel wire output from the material returning hole 611.

[0059] As shown in Figure 1 In specific embodiments, the conveying mechanism 10, the first straightening mechanism 20, the second straightening mechanism 30, the traction mechanism 40, the driving mechanism 50 and the cutting mechanism 60 are compact in structure and small in space occupation, and therefore at least two groups of them can be arranged at intervals to meet the synchronous conveying, straightening and cutting of multiple steel wires and improve the production efficiency.

[0060] like Figure 1 As shown, in a specific embodiment, the medical wire straightening and cutting device 100 includes a mounting frame 70, and the conveying mechanism 10, the first straightening mechanism 20, the second straightening mechanism 30, the traction mechanism 40, the driving mechanism 50 and the cutting mechanism 60 are all integrated and installed on the mounting frame 70.

[0061] The method for forming a torque wire using the steel wire cut by the medical steel wire straightening and cutting device 100 of the above embodiment includes the following steps: Step 1: Straighten and cut the steel wire to obtain the required length.

[0062] In a specific embodiment, step one is applied to the above-mentioned medical wire straightening and cutting device 100, and step one includes: Step A: The steel wire is input to the conveying mechanism 10 . Specifically, the steel wire is wound on the wire drum 11 , and the steel wire is tensioned on the first wire winding drum 12 and the second wire winding drum of the metering wire winding member 13 .

[0063] Step B: The traction mechanism 40 pulls the steel wire, so that the steel wire from the conveying mechanism 10 can be conveyed to the first straightening mechanism 20 for pre-straightening, and then conveyed to the first straightening mechanism 20 for secondary straightening. The straightened steel wire is conveyed to the cutting mechanism 60; Step C: The cutting mechanism 60 cuts the steel wire.

[0064] It can be understood that, initially, the steel wire output by the conveying mechanism 10 is manually passed through the first straightening mechanism 20, the second straightening mechanism 30 and the traction mechanism 40, and the first straightening member 21 and the second straightening member 33 are adjusted to ensure that the first straightening member 21 and the second straightening member 33 can both contact the steel wire, and then the first straightening mechanism 20, the second straightening mechanism 30 and the traction mechanism 40 are operated simultaneously to straighten the steel wire. The initially unstraightened part of the steel wire can be cut off by the cutting mechanism 60, and then the straightened steel wire is continuously conveyed to the cutting mechanism 60.

[0065] Step 2: Heat treat the cut steel wire to change its internal structure and improve its tensile strength. Specifically, place the steel wire in a heat treatment furnace, raise the temperature to the required treatment temperature, evacuate the furnace, and then introduce inert gas. Set the heat treatment furnace to a constant temperature, typically between 200°C and 250°C, such as 200°C, 225°C, or 250°C. Set the heat treatment time to a constant temperature, such as four hours.

[0066] Step three: the steel wire after heat treatment is cooled to make the steel wire shape and not easy to be oxidized. Specifically, after the heat treatment is finished, the heat treatment furnace is powered off, and the steel wire is naturally cooled to 65-80℃. For example, the steel wire is cooled to 65℃, 70℃ or 80℃. Then, the heat treatment furnace door is opened, and the steel wire is cooled to room temperature in the air.

[0067] Step four: the steel wire after cooling is sequentially subjected to acid cleaning, alkaline cleaning and water cleaning. The acid cleaning is used to remove the oxides and impurities on the surface of the steel wire, the alkaline cleaning is used to neutralize the acidic substances on the surface of the steel wire and make the steel wire have more durable super-slip effect. The water cleaning is used to remove the residual alkaline substances on the surface of the steel wire. Specifically, the cleaning of the steel wire can be completed in an ultrasonic cleaning tank.

[0068] Step five: the cleaned steel wire is subjected to low-temperature baking to form a torque wire. The low-temperature baking is used to evaporate the water on the surface of the steel wire while keeping the performance of the steel wire.

[0069] In summary, the tensile strength of the generated torque wire is improved through the steps of heat treatment, acid and alkali cleaning, etc. When applied to medical devices such as endoscopes, the torque wire is not easy to deform, can better transmit torque, reduce rotation lag, and help the operator to judge the interaction between the end of the device and the tissue, improve the treatment accuracy and safety.

[0070] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0071] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A medical wire straightening and cutting device, characterized in that: include: A conveying mechanism for conveying the steel wire; A first straightening mechanism and a second straightening mechanism are sequentially arranged at the output end of the conveying mechanism along the first direction; a traction mechanism, provided at an output end of the second straightening mechanism along the first direction, for pulling the steel wire from the second straightening mechanism; as well as a cutting mechanism, disposed at the output end of the traction mechanism along the first direction, for cutting the steel wire from the traction mechanism; The first straightening mechanism is provided with at least two rows of a plurality of first straightening members spaced apart along the first direction along the second direction, the steel wire is passed through between two adjacent rows of the first straightening members, and each of the first straightening members can rotate around its own axis to pre-straighten the steel wire; The first direction and the second direction are arranged at an angle; The second straightening mechanism includes a rotatable straightening bracket and a plurality of second straightening members connected to the straightening bracket, wherein the plurality of second straightening members are disposed on both sides of the rotation axis of the straightening bracket and are spaced apart along the first direction; The second straightening member includes a straightening end head movable in a direction perpendicular to the rotation axis, at least part of the straightening end head is provided with a flexible protective member, the flexible protective member acts on the steel wire, and the straightening end head has a tendency to extrude toward the steel wire in a direction perpendicular to the rotation axis, for performing secondary straightening of the steel wire.

2. The medical wire straightening and cutting device according to claim 1, characterized in that: The straightening end is convexly arranged to form an arc-shaped surface, and the flexible protective member at least covers the vertex of the arc-shaped surface.

3. The medical wire straightening and cutting device according to claim 2, characterized in that: The second straightening mechanism includes a pressure regulating member, which is mounted on the second straightening member and can be pressed against the straightening end, and the pressure regulating member is compressible in a direction perpendicular to the rotation axis; The second straightening member is provided with a limiting portion on a side thereof facing away from the straightening end head in a direction perpendicular to the rotation axis; the pressure adjusting member comprises a first elastic member, which is connected and pressed between the straightening end head and the limiting portion; And / or, the pressure regulating member includes a pressure cylinder body, the pressure cylinder body is filled with a compressible fluid, and the straightening end head is inserted into the pressure cylinder body and squeezes the fluid.

4. The medical wire straightening and cutting device according to claim 1, characterized in that: The first straightening mechanism includes two first straightening support seats, a first connecting rod and a second elastic member; The two first straightening support seats are spaced apart along the second direction, and each of the first straightening support seats is rotatably mounted with the first straightening member; the first connecting rod is simultaneously passed through the two first straightening support seats and can form a locking mechanism; the second elastic member is sleeved on the first connecting rod and pressed between the two first straightening support seats along the second direction.

5. The medical wire straightening and cutting device according to claim 1, characterized in that: The traction mechanism includes a traction support seat, two traction shafts spaced apart, and a traction transmission assembly. Each traction shaft is rotatably connected to the traction support seat. The two traction shafts are connected by the traction transmission assembly to rotate synchronously and in opposite directions relative to the traction support seat. A traction gap is defined between the two traction shafts for threading the steel wire. The traction mechanism further includes a floating block and a limiting block capable of abutting against each other, wherein the floating block and the limiting block are both mounted on the traction support seat, wherein one of the traction shafts passes through the floating block, and the other traction shaft passes through the limiting block; The traction mechanism also includes a third elastic member; along the radial direction of the traction shaft, one end of the third elastic member is connected to the traction support seat, and the other end is connected to the floating block. The elastic force of the third elastic member can drive the floating block to be pressed toward the limit block.

6. The medical wire straightening and cutting device according to any one of claims 1 to 5, characterized in that: The conveying mechanism includes a wire drum, a first wire winding disk and a metering wire winding piece arranged at intervals, the first wire winding disk is arranged between the wire drum and the metering wire winding piece, the metering wire winding piece is arranged at the input end of the first straightening mechanism, the steel wire is tensioned between the wire drum, the first wire winding disk and the metering wire winding piece and output to the first straightening mechanism.

7. The medical wire straightening and cutting device according to claim 6, characterized in that: The cutting mechanism includes a cutting movable component and a cutting support seat, the cutting support seat is formed with a material withdrawal hole provided therethrough, and at least part of the structure of the cutting movable component is provided on a side of the material withdrawal hole through which the steel wire is output; The cutting movable component includes a cutter, an electromagnetic pusher and a fourth elastic member. One end of the cutter is connected to the electromagnetic pusher, and the other end is connected to the fourth elastic member. Between the electromagnetic pusher and the fourth elastic member, the cutter is rotatably connected to the cutting support seat. The end of the fourth elastic member away from the cutter is connected to the cutting support seat. The electromagnetic pusher is electrically connected to the metering wire winding member and is configured to push the cutter to rotate around the rotation axis in response to the metering signal of the metering wire winding member.

8. The medical wire straightening and cutting device according to claim 7, characterized in that: The cutting mechanism further includes an adjustment assembly, the adjustment assembly including a first adjustment structure and a second adjustment structure, the first adjustment structure being connected between the cutter and the electromagnetic pusher, and the cutter being rotatably connected to the cutting support seat via the second adjustment structure; The first adjustment structure includes a second connecting rod connected to the electromagnetic pusher, a first connecting arm, and a second connecting arm; the second connecting rod extends along the axial direction of the material withdrawal hole; the first connecting arm and the second connecting arm are connected and arranged at an angle; the first connecting arm is sleeved and connected to the second connecting rod and is angled to the second connecting rod; the second connecting arm is connected to the cutter and is angled to the cutter; The second adjustment structure includes a rotating connecting piece, a fifth elastic piece and an adjustment locking piece. The rotating connecting piece is passed through the cutter and the cutting support seat and is connected to the cutter; the fifth elastic piece is provided on the side of the cutting support seat away from the cutter and is sleeved on the rotating connecting piece. The adjustment locking piece is connected to the rotating connecting piece, and the fifth elastic piece is limited between the adjustment locking piece and the cutting support seat.

9. The medical wire straightening and cutting device according to any one of claims 1 to 5, characterized in that: The wire straightening and cutting equipment also includes a driving mechanism having a first power output end and a second power output end arranged at an angle, one of the first power output end and the second power output end is transmission-connected to the second straightening mechanism, and the other is transmission-connected to the traction mechanism.

10. A method for forming a medical torque wire, characterized in that: The following steps are involved: Step 1: Straighten and cut the steel wire; Step 2: heat treating the cut steel wire; Step 3: Cooling the heat-treated steel wire; Step 4: The steel wire after cooling is sequentially cleaned with acid, alkaline and water; Step 5: performing low-temperature baking treatment on the cleaned steel wire to form a torque wire; Wherein, when performing step 1, using the medical wire straightening and cutting device according to any one of claims 1 to 9, the following steps are included: Step A: The steel wire is input into the conveying mechanism; Step B: The traction mechanism pulls the steel wire, and the steel wire is conveyed from the conveying mechanism to the first straightening mechanism for pre-straightening, and then conveyed to the second straightening mechanism for secondary straightening. The straightened steel wire is conveyed to the cutting mechanism; Step C: The cutting mechanism cuts the steel wire.

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