Medical stainless steel wire drawing machine based on surface cleaning and wire drawing method

Abstract

The invention relates to the technical field of wire drawing machines, in particular to a medical stainless steel wire drawing machine based on surface cleaning and a wire drawing method.The medical stainless steel wire drawing machine comprises a rack, a plurality of sets of drawing winding drums and drawing die pieces are arranged on the rack, and die holes are formed in the drawing die pieces; the cleaning device is used for cleaning the wire after wire drawing is completed, and the cleaning device comprises two groups of rotary sweeping mechanisms which are symmetrically arranged; the rotary sweeping mechanism comprises a side frame, the side frame is provided with a follower plate elastically connected with the side frame, and the side frame is fixedly provided with a shielding pipe; the rotating part is rotationally connected with the follow-up plate, a plurality of groups of through holes are circumferentially formed in the rotating part at equal intervals, and bristles are slidably mounted in the through holes; the lifting assembly is connected with the side frame and the bristles, and the lifting assembly can drive the bristles to do stepping motion away from the circle center of the rotating part when the follow-up plate moves towards the side frame; and the multiple sets of jet orifices are circumferentially arranged in the rotating piece at equal intervals, the jet orifices are narrowed at the end openings of the jet orifices, the jet orifices incline towards the through hole, and the wire drawing effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wire drawing machines, in particular to a medical stainless steel wire drawing machine based on surface cleaning and a wire drawing method. BACKGROUND

[0002] In the field of medical device manufacturing, medical stainless steel wire is the core raw material for preparing key components such as suture needles, guide wires, and orthopedic fixation needles. Its diameter range spans a wide range, from as thin as zero point zero seven millimeters to several millimeters, depending on the end use. This type of wire needs to go through a strict cold drawing process in production to obtain precise dimensions, excellent mechanical properties, and a bright surface. In the wire drawing process, the wire surface will inevitably be attached with wire drawing powder, metal chips, and residual lubricant, etc. If these residues are not thoroughly cleaned in time, they may cause potential chemical corrosion or physical contamination to the surface of the medical wire with high cleanliness requirements after subsequent winding and storage, directly affecting the biological safety and long-term reliability of the product, therefore, online cleaning after wire drawing is a crucial process.

[0003] Currently, an online cleaning device is integrated on the wire drawing machine, which is a ring-shaped cylindrical cleaning brush. The brush is fitted on the moving wire and can be driven to rotate by a motor, using the dynamic friction between the bristles and the wire surface to effectively remove the attached substances. However, this device has an inherent defect: as the cleaning operation continues, the dirt and impurities removed from the wire will accumulate in the bristle cluster. These accumulations not only gradually harden and block the effective cleaning gaps between the bristles, causing the cleaning efficiency to continuously decline and failing to ensure the long-term stable cleaning quality of the wire, but more seriously, the captured pollutants may be re-shed due to bristle saturation, becoming a source of pollution. This type of ring-shaped brush is fitted in the wire path, and it is a tedious task to disassemble it for thorough cleaning, which will inevitably disrupt the production line and affect the efficient and continuous production rhythm. SUMMARY

[0004] The present application aims to provide a medical stainless steel wire drawing machine based on surface cleaning and a wire drawing method to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A medical stainless steel wire drawing machine based on surface cleaning, comprising: a rack, a plurality of sets of drawing reels and die assemblies are arranged on the rack, the plurality of sets of drawing reels and the plurality of sets of die assemblies are arranged in a straight line, a die hole is arranged in the die assembly, and the die holes of the plurality of sets of die assemblies are sequentially reduced; a cleaning device arranged on the rack, the cleaning device is used for cleaning the wire after wire drawing, and the cleaning device comprises two sets of symmetrically arranged rotary sweeping mechanisms; The rotary sweeping mechanism includes: A side frame is fixedly installed on the machine frame. A follower plate that is elastically connected to the side frame is provided on the side frame, and a shielding tube is fixedly installed on the side frame. A rotating component is rotatably connected to the follower plate. The rotating component has multiple sets of through holes arranged equidistantly around its circumference, and brush bristles are slidably installed inside the through holes. A lifting assembly connects the side frame and the brush bristles. When the follower plate moves toward the side frame, the lifting assembly can drive the brush bristles to move away from the center of the rotating component in a stepping motion. Multiple sets of injection nozzles are arranged circumferentially and equidistantly within the rotating component. The injection nozzles narrow at their ports and are inclined toward the through holes.

[0006] As described above, the medical stainless steel wire drawing machine based on surface cleaning has multiple sets of horizontal shafts fixedly installed on the side frame, and the horizontal shafts are slidably connected to the follower plate. A second cylindrical spring is sleeved on the horizontal shaft. One end of the second cylindrical spring is connected to the side frame, and the other end is connected to the follower plate. The frame is also fixedly installed with a bidirectional drive component, which is provided with two sets of abutment plates. The two sets of abutment plates are respectively abutted and adapted to the follower plates on the two sets of rotary sweeping mechanisms.

[0007] The medical stainless steel wire drawing machine based on surface cleaning as described above: two sets of annular guide plates are coaxially arranged on the rotating part, and multiple sets of first teeth are arranged equidistantly on one set of annular guide plates. A drive unit is fixedly installed on the frame. Two sets of coaxial second gears are connected to the output shaft of the drive unit. The two sets of second gears are respectively adapted to the first teeth on the two sets of rotary sweeping mechanisms.

[0008] The medical stainless steel wire drawing machine based on surface cleaning as described above: an annular groove is formed on the rotating part, and an annular part is provided on the follower plate that is rotatably and sealingly connected to the annular groove, and an annular cavity is formed between the annular part and the annular groove; A guide hole is provided on the side wall of the annular groove, and the guide hole is connected to the injection port.

[0009] The surface-cleaning-based medical stainless steel wire drawing machine described above: the lifting assembly includes: A connecting plate connects the brush bristles, and guide blocks are provided on both sides of the connecting plate. The guide blocks can slide within guide grooves formed on the annular guide plate. A drive ring is rotatably mounted on the rotating component. The drive ring is connected to the guide block via a grooved shaft structure. The grooved shaft structure can drive the connecting plate to move along the length direction of the guide groove when the drive ring rotates relative to the annular guide plate. An extension shaft is rotatably mounted on the follower plate. One end of the extension shaft is connected to a first gear, which meshes with multiple sets of second teeth on the drive ring. A fixed tube is fixedly installed on the side frame. Two sets of drive grooves are provided inside the fixed tube, and the fitting shaft located at the other end of the extension shaft can roll in the drive groove.

[0010] The medical stainless steel wire drawing machine based on surface cleaning as described above: the lifting assembly further includes an elastic telescopic rod fixedly installed on the side frame, and a locking part is formed on the moving end of the elastic telescopic rod; The rotating component has multiple sets of locking holes equidistantly arranged on one side of its circumference, and the locking holes are adapted to the locking part.

[0011] The medical stainless steel wire drawing machine based on surface cleaning as described above: the drive ring is provided with an arc-shaped groove, and a first columnar spring is rotatably mounted on the drive ring. The first columnar spring passes through the arc-shaped groove and is connected to the annular guide plate. The groove shaft structure includes a convex shaft fixedly connected to the guide block and an inclined groove equidistantly arranged on the drive ring in a circular pattern, wherein the convex shaft can slide within the inclined groove.

[0012] The medical stainless steel wire drawing machine based on surface cleaning as described above: the drive groove includes a first straight groove, a first spiral groove, a second straight groove and a second spiral groove disposed in the fixed tube. The end of the first straight groove away from the first spiral groove is provided with two sets of spiral surfaces, and the two sets of spiral surfaces opposite each other on the two sets of drive grooves form protrusions. When the fitting shaft moves along the first helical groove and the second helical groove, the extension shaft can rotate.

[0013] A method for drawing medical stainless steel wire using the aforementioned surface-cleaning-based medical stainless steel wire drawing machine includes the following steps: Step 1: Each drawing drum rotates, pulling the wire through multiple sets of drawing dies in sequence, so that the distance between the wires gradually decreases until the wire diameter reaches the production requirement; Step 2: The bidirectional drive unit drives one set of rotary sweeping mechanisms into the cleaning operation state, and then drives the other set of rotary sweeping mechanisms into the self-cleaning operation state. Step 3: When the rotary sweeping mechanism enters the self-cleaning operation state, the lifting component moves to move the bristles away from the center of the rotating part. Step 4: Compressed gas is forced into the nozzle and then acts on the bristles to remove the dirt and impurities attached to the bristles; Step 5: After the rotary sweeping mechanism has been in the cleaning operation state for the predetermined time, the two sets of rotary sweeping mechanisms switch operation states again, and the rotary sweeping mechanism in the self-cleaning operation state performs the above steps 3 and 4.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. During the self-cleaning operation of the rotary sweeping mechanism, the bristles are pulled away from the center of the rotating part. In this process, firstly, the impurities and dirt attached to the bristles are transferred to the inner wall of the rotating part. Secondly, the high-pressure gas acts on the bristles along the length of the bristles, and the impact force of the airflow can directly act on the dirt and impurities attached to the bristles, further reducing the content of dirt and impurities attached to the bristles. In addition, the high-pressure jet generated by the nozzle can also act on the dirt and impurities accumulated on the inner wall of the rotating part, which can reduce the content of dirt and impurities attached to the inner wall of the rotating part to a certain extent, preventing excessive dirt and impurities from falling off during subsequent cleaning and affecting the cleaning effect of the bristles on the filaments. 2. This ensures that the two sets of rotary sweeping mechanisms are in a synchronous cleaning state when switching between operating states, preventing cleaning gaps during the switching process that could result in untreated areas of the wires. This improves the completeness of the cleaning process and prevents cross-contamination of the wires after winding due to residual dirt and impurities. 3. During the movement of the follower plate toward the side frame, the extension shaft and the rotating component can be locked sequentially, and the two can move in relative steps. This can prevent the ends of the brush bristles from interfering with the side end of the shielding tube when the rotating component moves relative to the shielding tube, which would cause dirt and impurities on the brush bristles to be transferred to the side of the shielding tube and accumulate. On the other hand, it can ensure that the brush bristles will only be further pulled after the ends of the rotating component and the shielding tube away from the side frame are aligned. This allows dirt and impurities on the brush bristles to be transferred to the circumferential surface of the shielding tube and not to adhere to the wires, thus improving the cleaning effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a medical stainless steel wire drawing machine based on surface cleaning.

[0016] Figure 2 This is a schematic diagram of the internal structure of the cleaning device in a medical stainless steel wire drawing machine based on surface cleaning.

[0017] Figure 3 This is a schematic diagram of the internal structure of the cleaning device in a medical stainless steel wire drawing machine based on surface cleaning, taken from another angle.

[0018] Figure 4 This is a schematic diagram of the rotary sweeping mechanism in a medical stainless steel wire drawing machine based on surface cleaning.

[0019] Figure 5 This is an exploded view of a partial structure of the rotary sweeping mechanism in a medical stainless steel wire drawing machine based on surface cleaning.

[0020] Figure 6 This is an exploded view of the annular guide plate and connecting plate in a medical stainless steel wire drawing machine based on surface cleaning.

[0021] Figure 7 This is a schematic diagram of the annular component, rotating component, and annular guide plate in a medical stainless steel wire drawing machine based on surface cleaning.

[0022] Figure 8 for Figure 7 Cross-sectional view at point AA.

[0023] Figure 9 for Figure 8 Enlarged view of the structure at point C.

[0024] Figure 10 for Figure 7 Cross-sectional view at point BB.

[0025] Figure 11 This is a schematic diagram of the structure of the fixed tube and the extension shaft in a medical stainless steel wire drawing machine based on surface cleaning.

[0026] Figure 12 This is a schematic diagram of the internal structure of the fixed tube in a medical stainless steel wire drawing machine based on surface cleaning.

[0027] Figure 13 This is a schematic diagram of the second gear, drive unit, bidirectional drive component, and abutment plate in a medical stainless steel wire drawing machine based on surface cleaning.

[0028] Figure 14 This is a schematic diagram of the rotary sweeping mechanism in a surface-cleaning-based medical stainless steel wire drawing machine, showing both the cleaning operation state and the self-cleaning operation state.

[0029] In the diagram: 1. Frame; 2. Drawing drum; 3. Drawing die; 4. Cleaning device; 5. Side frame; 6. Shielding tube; 7. Follower plate; 701. Annular component; 8. Rotating component; 801. Locking hole; 802. Guide hole; 803. Injection nozzle; 804. Through hole; 805. Annular groove; 9. Annular guide plate; 901. Guide groove; 902. First tooth; 10. Drive ring; 1001. Inclined groove; 1002. Second tooth; 11. First cylindrical spring; 12. Connecting plate; 1201. Guide block; 12 02. Convex shaft; 13. Brush bristles; 14. First gear; 15. Extension shaft; 1501. Fitting shaft; 16. Fixing tube; 1601. Helical surface; 1602. First straight groove; 1603. First helical groove; 1604. Second straight groove; 1605. Second helical groove; 17. Second gear; 18. Drive device; 19. Bidirectional drive component; 20. Abutment plate; 21. Air pressure generating device; 22. Elastic telescopic rod; 2201. Locking part; 23. Annular chamber; 24. Horizontal shaft; 25. Second cylindrical spring. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] Please see Figures 1 to 14 As an embodiment of the present invention, the medical stainless steel wire drawing machine based on surface cleaning includes: a frame 1 and a cleaning device 4.

[0032] The frame 1 is provided with multiple sets of drawing drums 2 and drawing die components 3. The multiple sets of drawing drums 2 and multiple sets of drawing die components 3 are arranged in a straight line. The drawing die component 3 is provided with a die hole, and the die holes of the multiple sets of drawing die components 3 decrease in size sequentially. The cleaning device 4 is mounted on the frame 1. The cleaning device 4 is used to clean the wires after the wire drawing is completed. The cleaning device 4 includes two sets of symmetrically arranged rotary sweeping mechanisms. In this application, the two sets of rotary sweeping mechanisms have two working states: one is a cleaning operation state, and the other is a self-cleaning operation state.

[0033] The rotary sweeping mechanism includes: a side frame 5, a rotating component 8, a lifting assembly, and a spray nozzle 803.

[0034] The side frame 5 is fixedly installed on the frame 1. The side frame 5 is provided with a follower plate 7 that is elastically connected to it, and a shielding tube 6 is fixedly installed on the side frame 5. When the rotary sweeping mechanism is in the self-cleaning operation state, the bristles 13 can move away from the axis of the rotating part 8, so that the ends of the bristles 13 can be outside the shielding tube 6. At this time, when the compressed gas acts on the bristles 13 to spray away the impurities, the impurities can adhere to the shielding tube 6, thereby preventing the impurities from re-adhering to the wire.

[0035] The rotating component 8 is rotatably connected to the follower plate 7. The rotating component 8 is provided with multiple sets of through holes 804 at equal intervals around the circumference. Brush bristles 13 are slidably installed in the through holes 804. The injection port 803 is provided in multiple sets and is circumferentially equidistantly arranged in the rotating member 8. The injection port 803 narrows at its port and is inclined toward the through hole 804. Further, an annular groove 805 is formed on the rotating member 8. An annular member 701 is provided on the follower plate 7 and is rotatably and sealingly connected to the annular groove 805. An annular chamber 23 is formed between the annular member 701 and the annular groove 805. A pneumatic pressure generating device 21 is provided on the frame 1. The pneumatic pressure generating device 21 is connected to the annular member 701 to pump compressed gas toward the annular chamber 23. A guide hole 802 is provided on the side wall of the annular groove 805, and the guide hole 802 is connected to the injection port 803.

[0036] In this embodiment, when the rotary sweeping mechanism enters the self-cleaning operation state, the lifting assembly can cause the bristles 13 to move away from the center of the rotating component 8 along a direction parallel to the axis of the rotating component 8 when the follower plate 7 moves toward the side frame 5. During this process, firstly, the bristles 13 can move along the length direction of the through hole 804, so that the dirt and impurities attached to the bristles 13 can be scraped off by the inner wall of the rotating component 8, thereby reducing the content of dirt and impurities attached to the bristles 13. Secondly, the air pressure generating device 21 pumps compressed gas toward the annular chamber 23. The compressed gas enters the spray port 803 through the guide hole 802 and is sprayed out. The spray port 803 is inclined toward the through hole 804, so that the compressed gas can directly act on the bristles 13, so as to use the impact force of the compressed gas to directly act on the dirt and impurities attached to the bristles 13, further reducing the content of dirt and impurities attached to the bristles 13, and preventing the bristles 13 from having a large amount of dirt and impurities attached when switching to the cleaning operation state, resulting in poor cleaning effect.

[0037] Furthermore, as the bristles 13 move, the dirt and impurities attached to their surface will accumulate more and more on the inner wall of the rotating part 8. At this time, the high-pressure jet generated by the spray nozzle 803 can also act on these accumulated dirt and impurities. Although it cannot completely eliminate the dirt and impurities attached to the inner wall of the rotating part 8, it can reduce the content of dirt and impurities attached to the inner wall of the rotating part 8 to a certain extent, preventing the excessive dirt and impurities from falling off during subsequent cleaning and affecting the cleaning effect of the bristles 13 on the filaments.

[0038] Based on the above configuration, during the self-cleaning operation of the rotary sweeping mechanism, the bristles 13 can be pulled away from the center of the rotating part 8. In this process, firstly, the impurities and dirt attached to the bristles 13 can be transferred to the inner wall of the rotating part 8. Secondly, by applying high-pressure gas along the length of the bristles 13, the impact force of the airflow can directly act on the dirt and impurities attached to the bristles 13, further reducing the content of dirt and impurities attached to the bristles 13. In addition, the high-pressure jet generated by the spray nozzle 803 can also act on the dirt and impurities accumulated on the inner wall of the rotating part 8, which can reduce the content of dirt and impurities attached to the inner wall of the rotating part 8 to a certain extent, preventing excessive dirt and impurities from falling off during subsequent cleaning and affecting the cleaning effect of the bristles 13 on the filaments.

[0039] Please see Figures 2 to 4 Multiple sets of horizontal shafts 24 are fixedly installed on the side frame 5, and the horizontal shafts 24 are slidably connected to the follower plate 7; A second cylindrical spring 25 is sleeved on the horizontal shaft 24. One end of the second cylindrical spring 25 is connected to the side frame 5, and the other end is connected to the follower plate 7. In the initial state, the second cylindrical spring 25 is in a compressed state. At this time, the elastic force provided by the second cylindrical spring 25 can make the follower plate 7 abut against the end of the horizontal shaft 24. In this state, the rotating member 8 and the blocking tube 6 are completely misaligned.

[0040] The frame 1 is also fixedly installed with a bidirectional drive component 19, and the bidirectional drive component 19 is provided with two sets of abutment plates 20. The two sets of abutment plates 20 respectively abut against and are adapted to the follower plates 7 on the two sets of rotary sweeping mechanisms. Two sets of annular guide plates 9 are coaxially arranged on the rotating component 8, and one set of annular guide plates 9 has multiple sets of first teeth 902 arranged circumferentially at equal intervals. A drive device 18 is fixedly installed on the frame 1. Two sets of coaxial second gears 17 are connected to the output shaft of the drive device 18. The two sets of second gears 17 are respectively adapted to the first tooth portion 902 on the two sets of rotary sweeping mechanisms.

[0041] In the initial state, one set of rotary sweeping mechanisms is in the cleaning operation state. At this time, one set of second gears 17 is engaged with the first tooth 902, so that the rotating part 8 in the rotary sweeping mechanism in the cleaning operation state is in the rotating state, and the brush bristles 13 connected to it are also in the rotating state. This rotating cleaning state can ensure that the brush bristles 13 and the filaments are in full contact, thereby improving the cleaning effect on the filaments.

[0042] Meanwhile, the other set of rotary sweeping mechanisms is in self-cleaning operation mode. At this time, the first tooth 902 in the rotary sweeping mechanism is separated from the second gear 17. Since the rotating part 8 does not need to rotate in the self-cleaning operation mode, the load on the drive device 18 can be reduced, thus improving its durability.

[0043] When the two sets of rotary sweeping mechanisms perform the switching action, the bidirectional drive 19 will drive the abutment plate 20 that is in contact with the rotary sweeping mechanism in the self-cleaning operation state to reset, so that the rotary sweeping mechanism in the self-cleaning operation state can switch to the cleaning operation state. At this time, both sets of rotary sweeping mechanisms are in the cleaning operation state. After that, the bidirectional drive 19 will act again, driving the rotary sweeping mechanism that was originally in the cleaning operation state to switch to the self-cleaning operation state through the other set of abutment plates 20. That is, when the two sets of rotary sweeping mechanisms perform the switching action, they have a process of cleaning the wire at the same time, which prevents there from being a gap in cleaning during the switching process, resulting in some areas of the wire not being cleaned, improving the integrity of cleaning, and preventing cross-contamination of the wire after subsequent winding due to dirt and impurities.

[0044] During the meshing process between the second gear 17 and the first tooth 902, there may be misalignment between the two, which prevents them from meshing immediately. However, under the elastic force provided by the second columnar spring 25, the first tooth 902 tends to fit against the second gear 17, so that although they cannot mesh immediately, they can mesh in a short time.

[0045] Based on the above settings, the two sets of rotary sweeping mechanisms are simultaneously in a cleaning state when switching operating states, preventing cleaning gaps during the switching process that could result in untreated areas of the wires. This improves the integrity of the cleaning process and prevents cross-contamination of the wires after winding due to residual dirt and impurities.

[0046] Please see Figures 4 to 7 The lifting assembly connects the side frame 5 and the brush bristles 13. When the follower plate 7 moves toward the side frame 5, the lifting assembly can drive the brush bristles 13 to move away from the center of the rotating part 8 in a stepping motion. The lifting assembly includes: a connecting plate 12, a drive ring 10, an extension shaft 15, and a fixing tube 16.

[0047] The connecting plate 12 connects to the bristles 13, and guide blocks 1201 are provided on both sides of the connecting plate 12. The guide blocks 1201 can slide in the guide groove 901 formed on the annular guide plate 9. The drive ring 10 is rotatably mounted on the rotating member 8. The drive ring 10 and the guide block 1201 are connected by a groove shaft structure. The groove shaft structure can drive the connecting plate 12 to move along the length direction of the guide groove 901 when the drive ring 10 rotates relative to the annular guide plate 9. The drive ring 10 is provided with an arc-shaped groove, and a first columnar spring 11 is rotatably mounted on the drive ring 10. The first columnar spring 11 passes through the arc-shaped groove and is connected to the annular guide plate 9. The groove shaft structure includes a convex shaft 1202 fixedly connected to the guide block 1201 and an inclined groove 1001 circumferentially and equidistantly arranged on the drive ring 10. The convex shaft 1202 can slide within the inclined groove 1001.

[0048] In this embodiment, the guide groove 901 is arranged along the length direction of the through hole 804, so that when the guide block 1201 moves in the guide groove 901, the bristles 13 can move along its length direction, thereby avoiding the phenomenon of the bristles 13 being distorted when moving relative to the through hole 804, and preventing the situation where the bristles 13 bend and cannot move relative to the through hole 804 when resetting.

[0049] In the initial state, the first cylindrical spring 11 is in a stretched state. At this time, the connection between the first cylindrical spring 11 and the annular guide plate 9 abuts against one end of the arc groove. At this time, the guide block 1201 is at the end of the guide groove 901 near the axis of the rotating part 8, and the convex shaft 1202 is also at the end of the inclined groove 1001 near the axis of the rotating part 8, so that the annular guide plate 9 and the drive ring 10 are in a one-way locked state. At this time, the connecting plate 12 can maintain a stable position, thereby ensuring the extension of the bristles 13 and preventing the bristles 13 from not being able to act on the wires when the rotating part 8 rotates due to insufficient extension.

[0050] When the drive ring 10 rotates relative to the rotating part 8, the first cylindrical spring 11 can be further stretched. At the same time, the position where the inclined groove 1001 and the guide groove 901 are tangent will change. Specifically, the intersection position of the two will be towards the end of the guide groove 901 away from the axis of the rotating part 8. During this process, the guide block 1201 will move away from the axis of the rotating part 8 along the length direction of the guide groove 901. The connecting plate 12 can pull the bristles 13 away from the axis of the rotating part 8, thereby removing the dirt and impurities attached to the bristles 13.

[0051] Please see Figures 5 to 7 , Figure 11 , Figure 12 The extension shaft 15 is rotatably mounted on the follower plate 7. One end of the extension shaft 15 is connected to a first gear 14, which meshes with multiple sets of second teeth 1002 provided on the drive ring 10. The fixed tube 16 is fixedly installed on the side frame 5. Two sets of drive grooves are provided inside the fixed tube 16. The fitting shaft 1501 located at the other end of the extension shaft 15 can roll in the drive groove. The drive groove includes a first straight groove 1602, a first spiral groove 1603, a second straight groove 1604 and a second spiral groove 1605 provided inside the fixed tube 16. Two sets of spiral surfaces 1601 are provided at the end of the first straight groove 1602 away from the first spiral groove 1603, and the two sets of spiral surfaces 1601 opposite to each other on the two sets of drive grooves form protrusions. When the fitting shaft 1501 moves along the first spiral groove 1603 and the second spiral groove 1605, the extension shaft 15 can rotate; The lifting assembly also includes an elastic telescopic rod 22 fixedly installed on the side frame 5, and a locking part 2201 is formed on the moving end of the elastic telescopic rod 22. The rotating component 8 has multiple sets of locking holes 801 arranged equidistantly on one side of its circumference, and the locking holes 801 are adapted to the locking part 2201.

[0052] When the rotary sweeping mechanism is in the cleaning operation state, the corresponding extension shaft 15 is in a state of separation from the fixed tube 16, so that when the rotating part 8 rotates, the extension shaft 15 can rotate freely under the meshing of the first gear 14 and the second tooth part 1002.

[0053] When the rotary sweeping mechanism switches to the self-cleaning operation state, the follower plate 7 will move toward the side frame 5. At this time, the extension shaft 15 will be inserted into the fixed tube 16. During this process, the fitting shaft 1501 can enter the first straight groove 1602 under the guidance of the spiral surface 1601, and cause the extension shaft 15 and the rotating part 8 to rotate at the corresponding angle. When the follower plate 7 moves further toward the side frame 5, the fitting shaft 1501 will move along the first straight groove 1602. During the movement, the locking part 2201 at the end of the elastic telescopic rod 22 can be inserted into the corresponding locking hole 801, so that the rotating part 8 and the annular guide plate 9 are locked. This locking state can ensure that when the rotating part 8 rotates later, the rotating part 8 can rotate relative to the drive ring 10, thereby pulling the connecting plate 12.

[0054] Furthermore, since the annular guide plate 9 and drive ring 10 are in a unidirectional locking state in the initial state, while the spiral surface 1601 guides the fitting shaft 1501 in both directions, by first calibrating the extension shaft 15 and making the rotating part 8 follow the rotation, interference caused by the extension shaft 15 rotating in the locking direction of the annular guide plate 9 and drive ring 10 when the rotating part 8 is locked can be avoided, thus ensuring the normal movement of the equipment.

[0055] Subsequently, as the follower plate 7 continues to move toward the side frame 5, the fitting shaft 1501 will slide sequentially through the first spiral groove 1603, the second straight groove 1604, and the second spiral groove 1605. When the fitting shaft 1501 moves in the first spiral groove 1603, the extension shaft 15 can drive the drive ring 10 to move relative to the annular guide plate 9 through the meshing of the first gear 14 and the second toothed part 1002. This allows the bristles 13 to be pulled to a certain extent and move away from the axis of the rotating member 8. At this time, the ends of the bristles 13 are outside the shielding tube 6. This can prevent the ends of the bristles 13 from interfering with the side end of the shielding tube 6 when the rotating member 8 moves toward the shielding tube 6, causing dirt and impurities on the bristles 13 to adhere to the shielding tube 6 and accumulate.

[0056] When the fitting shaft 1501 moves in the second straight groove 1604, the rotating part 8 can move along the length direction of the shielding tube 6, and make the end of the rotating part 8 and the shielding tube 6 away from the side frame 5 coincide. When the fitting shaft 1501 moves in the second spiral groove 1605, the extension shaft 15 will rotate further, so that the bristles 13 can be further pulled away from the axis of the rotating part 8. At this time, with the action of compressed gas, the dirt and impurities attached to the bristles 13 are removed.

[0057] Based on the above configuration, during the movement of the follower plate 7 toward the side frame 5, it can sequentially lock the extension shaft 15 and the rotating component 8, and make the two move in relative steps. This can prevent the ends of the bristles 13 from interfering with the side end of the shielding tube 6 when the rotating component 8 moves relative to the shielding tube 6, causing dirt and impurities on the bristles 13 to transfer to the side of the shielding tube 6 and accumulate. On the other hand, it can ensure that the bristles 13 will only be further pulled after the ends of the rotating component 8 and the shielding tube 6 away from the side frame 5 are aligned, so that when removing dirt and impurities from the bristles 13, the dirt and impurities can be transferred to the circumferential surface of the shielding tube 6 and will not adhere to the wires, thus improving the cleaning effect.

[0058] As an embodiment of the present invention, a method for drawing stainless steel wire using the aforementioned surface-cleaning-based medical stainless steel wire drawing machine is also proposed, comprising the following steps: Step 1: Each drawing drum 2 rotates, pulling the wire through multiple sets of drawing die parts 3 in sequence, so that the distance between the wires gradually decreases until the wire diameter reaches the production requirement; Step 2: The bidirectional drive component 19 drives one set of rotary sweeping mechanisms into the cleaning operation state, and then drives the other set of rotary sweeping mechanisms into the self-cleaning operation state. Step 3: When the rotary sweeping mechanism enters the self-cleaning operation state, the lifting component moves to move the bristles 13 away from the center of the rotating part 8. Step 4: Compressed gas is forced into the injection port 803 and then acts on the bristles 13 to remove the stains and impurities attached to the bristles 13; Step 5: After the rotary sweeping mechanism has been in the cleaning operation state for the predetermined time, the two sets of rotary sweeping mechanisms switch operation states again, and the rotary sweeping mechanism in the self-cleaning operation state performs the above steps 3 and 4.

[0059] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A medical stainless steel wire drawing machine based on surface cleaning, comprising: a rack, a plurality of drawing reels and die sets are arranged on the rack, the plurality of drawing reels and die sets are arranged in a straight line, a die hole is arranged in the die set, and the die holes of the plurality of die sets are sequentially reduced; a cleaning device arranged on the rack, the cleaning device is used for cleaning the wire after drawing, and the cleaning device comprises two symmetrically arranged rotary sweeping mechanisms; characterized in that the rotary sweeping mechanism comprises: a side frame fixedly installed on the rack, a follow-up plate elastically connected to the side frame is arranged on the side frame, and a shielding tube is fixedly installed on the side frame; a rotating member rotatably connected to the follow-up plate, a plurality of through holes are arranged on the rotating member at equal intervals, and bristles are slidably installed in the through holes; a lifting assembly connecting the side frame and the bristles, the lifting assembly can drive the bristles to step away from the center of the rotating member when the follow-up plate moves towards the side frame; a plurality of injection ports are arranged in the rotating member at equal intervals, the injection ports are narrowed at the ports, and the injection ports are inclined towards the through holes.

2. A surface cleaning based medical stainless steel wire drawing machine as claimed in claim 1, wherein, A plurality of horizontal shafts are fixedly installed on the side frame, and the horizontal shafts are slidably connected to the follow-up plate; a second cylindrical spring is sleeved on the horizontal shaft, one end of the second cylindrical spring is connected to the side frame, and the other end is connected to the follow-up plate; a bidirectional driving member is also fixedly installed on the rack, two abutting plates are arranged on the bidirectional driving member, and the two abutting plates are respectively abutted and adapted to the follow-up plates on the two rotary sweeping mechanisms.

3. A surface cleaning based medical stainless steel wire drawing machine as claimed in claim 1, wherein, Two annular guide plates are coaxially arranged on the rotating member, a plurality of first tooth parts are arranged on one of the annular guide plates at equal intervals; a driving device is fixedly installed on the rack, two coaxial second gears are connected to the output shaft of the driving device, and the two second gears are respectively adapted to the first tooth parts on the two rotary sweeping mechanisms.

4. A surface cleaning based medical stainless steel wire drawing machine as claimed in claim 1, wherein, An annular groove is formed on the rotating member, an annular member is arranged on the follow-up plate and sealingly rotatably connected to the annular groove, and an annular chamber is formed between the annular member and the annular groove; a guide hole is arranged on the side wall of the annular groove, and the guide hole is communicated with the injection port.

5. A surface cleaning based medical stainless steel wire drawing machine as claimed in claim 3, wherein, The lifting assembly comprises: a connecting plate connected to the bristles, guide blocks are arranged on both sides of the connecting plate, and the guide blocks can slide in the guide slots formed on the annular guide plates; a driving ring rotatably installed on the rotating member, the driving ring is connected to the guide blocks through a groove shaft structure, and the groove shaft structure can drive the connecting plate to move along the length direction of the guide slot when the driving ring rotates relative to the annular guide plate; an extension shaft rotatably installed on the follow-up plate, a first gear is connected to one end of the extension shaft, and the first gear is engaged with a plurality of second tooth parts arranged on the driving ring; a fixed tube is fixedly installed on the side frame, two driving grooves are arranged in the fixed tube, and a fitting shaft arranged on the other end of the extension shaft can roll in the driving grooves.

6. A surface cleaning based medical stainless steel wire drawing machine as claimed in claim 1, wherein, The pulling assembly further comprises an elastic telescopic rod fixedly installed on the side frame, and a locking portion is formed on a moving end of the elastic telescopic rod; A plurality of locking holes are circumferentially and equidistantly arranged on one side of the rotating member, and the locking holes are adapted with the locking portion.

7. A surface cleaning based medical stainless steel wire drawing machine as claimed in claim 5, wherein, An arc-shaped slot is arranged on the driving ring, and a first cylindrical spring is rotatably installed on the driving ring, and the first cylindrical spring is connected with the annular guide plate through the arc-shaped slot; The slot shaft structure comprises a convex shaft fixedly connected with the guide block and an inclined slot circumferentially and equidistantly arranged on the driving ring, and the convex shaft is capable of sliding in the inclined slot.

8. A surface cleaning based medical stainless steel wire drawing machine as claimed in claim 5, wherein, The driving slot comprises a first flat slot, a first spiral slot, a second flat slot and a second spiral slot arranged in the fixed tube, two groups of helical surfaces are arranged at one end of the first flat slot away from the first spiral slot, and protruding portions are formed by the two groups of helical surfaces opposite to each other on the two groups of driving slots. When the embedded shaft moves along the first spiral slot and the second spiral slot, the extension shaft is capable of rotating.

9. A method of wire drawing using the surface cleaning-based medical stainless steel wire drawing machine according to any one of claims 1 to 8, characterized by, The method comprises the following steps: Step one: each drawing reel rotates, and the wire is sequentially drawn through a plurality of groups of drawing dies, so that the wire is gradually reduced between the wires, until the diameter of the wire reaches the production requirement; Step two: the bidirectional driving member drives one group of rotating sweeping mechanisms into a cleaning operation state, and then drives another group of rotating sweeping mechanisms into a self-cleaning operation state; Step three: when the rotating sweeping mechanism is in the self-cleaning operation state, the pulling assembly is actuated, so that the bristles can move away from the center of the rotating member; Step four: compressed gas is compressed into the jet port, and then acts on the bristles to remove the stains and impurities attached to the bristles; Step five: after the rotating sweeping mechanism in the cleaning operation state works for a predetermined time, the two groups of rotating sweeping mechanisms switch the operation state again, and the rotating sweeping mechanism in the self-cleaning operation state performs the above steps three and four.

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