A cosmetic thread barb cutting machine and cutting method

CN122606714APending Publication Date: 2026-08-21SUZHOU SUPINLI PRECISION MASCH EQUIP CO LTD
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Patent Information

Application Number
CN202611034281.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-13
Publication Date
2026-08-21

AI Technical Summary

Technical Problem

传统的切割方式难以保证倒刺的尺寸一致性和切口平整度,容易出现倒刺过深或过浅、角度偏差等问题,进而影响美容线在实际应用中的稳定性和舒适度,增加了手术风险和术后恢复难度

Benefits of technology

1、通过放线机构、倒刺切割机构和拉线剪断机构的设置,实现了美容线加工的自动化连续作业。

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a cosmetic thread barb cutting machine and a cutting method, which comprise a machine table, wherein a pay-off mechanism, a barb cutting mechanism and a thread pulling and cutting mechanism are sequentially arranged on the machine table; the barb cutting mechanism comprises a rack, a rotating frame is arranged in the rack, the rotating frame is rotationally connected with the rack, a first cutting assembly and a second cutting assembly are respectively arranged on the rotating frame, the first cutting assembly and the second cutting assembly are arranged in opposite symmetry, and a rotating driving mechanism for driving the rotating frame to rotate is further arranged; through the arrangement of the pay-off mechanism, the barb cutting mechanism and the thread pulling and cutting mechanism, the automatic and continuous operation of the cosmetic thread processing is realized; meanwhile, the rotating frame of the barb cutting mechanism is designed to enable the first cutting assembly and the second cutting assembly to rotate with the rotating frame, and the stable support of the cosmetic thread by the guide support assembly is combined, so that the accurate cutting of different annular and angular barbs is effectively guaranteed.
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Description

Technical Field

[0001] This invention relates to the field of cosmetic thread processing, and in particular to a cosmetic thread barb cutting machine and cutting method. Background Technology

[0002] Currently, in the manufacturing process of cosmetic sutures, the cutting precision of the barbs directly affects the effectiveness and safety of the sutures. Traditional cutting methods struggle to guarantee consistent barb dimensions and even cut surfaces, easily resulting in barbs that are too deep or too shallow, or angle deviations. This, in turn, affects the stability and comfort of the cosmetic sutures in practical applications, increasing surgical risks and postoperative recovery difficulties.

[0003] To address the aforementioned technical problems, this invention provides a barb cutting machine and method for cosmetic sutures. The aim is to improve the precision and stability of barb cutting by optimizing the cutting structure and control process, ensuring the consistency of barb dimensions and the smoothness of the cut, thereby enhancing the safety and reliability of cosmetic sutures. Summary of the Invention

[0004] The technical problem solved by this invention is to provide a barbed cutting machine for cosmetic sutures that can cut different rings and angles.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a barb cutting machine for cosmetic thread, including a machine base, wherein a thread feeding mechanism, a barb cutting mechanism and a thread pulling and cutting mechanism are sequentially arranged on the machine base; The barb cutting mechanism includes a frame, a rotating frame is disposed inside the frame, the rotating frame is rotatably connected to the frame, a first cutting component and a second cutting component are respectively disposed on the rotating frame, the first cutting component and the second cutting component are arranged symmetrically relative to each other, and a rotation drive mechanism for driving the rotating frame to rotate.

[0006] Furthermore, the rotary drive mechanism is a first rotary drive motor located at one end of the rotary frame, the drive end of the first rotary drive motor is connected to one end of the rotary frame, and the other end of the rotary frame is rotatably connected to the machine frame through a bearing.

[0007] Furthermore, both the first cutting assembly and the second cutting assembly include a first mounting plate, on which a blade mounting bracket is provided, and on which a blade and a second rotary drive motor are provided to drive the blade to perform rotary cutting motion.

[0008] Furthermore, both ends of the frame are provided with through holes for beauty threads to pass through, and a first guide tube is provided in the through hole. The outer end of the guide tube is provided with a trumpet-shaped opening, and the size of the trumpet-shaped opening decreases from the outer side to the inner side of the frame.

[0009] Furthermore, the rotating frame is provided with a guide support assembly in the middle for supporting the beauty thread, and the two ends of the guide support assembly are fixedly connected to the rotating frame.

[0010] Furthermore, the guide support assembly includes a first mounting block, with both ends of the first mounting block fixedly connected to the rotating frame. A second mounting block is provided on the first mounting block, with guide components for the beauty thread to pass through at both ends of the second mounting block, and a support block for supporting the beauty thread is provided in the middle of the second mounting block.

[0011] Furthermore, the guiding component is a second guiding tube, and both ends of the guiding tube are provided with flared openings, the size of which decreases from the outer end to the inner end. The support block is provided with a protrusion, which has an inclined structure and a groove for supporting the cosmetic thread. When cutting, the lower half of the cut part of the cosmetic thread is located in the groove.

[0012] Furthermore, the thread feeding mechanism includes a thread feeding frame, on which a thread feeding wheel, a first guide wheel and a second guide wheel are sequentially arranged along the direction of movement of the cosmetic thread. A first winding rod is arranged between the thread feeding wheel and the first guide wheel, and a second winding rod is arranged between the first guide wheel and the second guide wheel. It also includes a vertically arranged guide rail, on which a slider is provided, the first guide wheel is mounted on the slider, and a weight is suspended on the first guide wheel.

[0013] Furthermore, the wire cutting mechanism includes a gantry frame, on which a horizontal traversing module is provided, a wire pulling assembly is provided on the drive end of the horizontal traversing module, and a wire cutting assembly is also provided on the gantry frame; The cable pulling assembly includes a first vertical drive cylinder, and the drive end of the first vertical drive cylinder is provided with a first gripper cylinder. The wire cutting assembly includes a first horizontal drive cylinder mounted on a gantry frame, a second mounting plate being provided at the drive end of the first horizontal drive cylinder, and a cutting assembly and a second gripper cylinder being provided on the second mounting plate. The lower part of the gantry frame is also equipped with a receiving box.

[0014] This invention also discloses a method for cutting barbs on cosmetic sutures, using the aforementioned cosmetic suture barb cutting machine, the steps of which are as follows: S100: The thread feeding mechanism feeds the beauty thread, which passes through the rotating frame and is held by the first gripper cylinder at the cutting mechanism. S200: The first and second cutting components perform barbed cutting on the cosmetic thread from two directions respectively; S300: The first gripper cylinder holds the cosmetic thread and moves it forward a certain distance. The rotating frame rotates at a certain angle, and the first and second cutting components perform barbed cutting on the cosmetic thread again. S400: Repeat step S300. After the first gripper cylinder has gripped the beauty thread and moved forward a specified length, the cutting component and the second gripper cylinder extend. The second gripper cylinder clamps the beauty thread, then the cutting component cuts the beauty thread, the first gripper cylinder releases, and the beauty thread falls into the receiving box. S500: The first gripper cylinder returns to the initial position and clamps the end of the cosmetic thread; the second gripper cylinder releases the cosmetic thread. S600: Repeat steps S200 to S500.

[0015] The beneficial effects of this invention are: 1. By setting up a wire feeding mechanism, a barb cutting mechanism, and a wire pulling and cutting mechanism, automated and continuous operation of beauty thread processing is realized.

[0016] 2. The rotating frame design of the barb cutting mechanism allows the first and second cutting components to rotate with the rotating frame. Combined with the guide support component, it provides stable support for the beauty thread, effectively ensuring the precise cutting of barbs of different rings and angles.

[0017] 3. The thread feeding mechanism, through the cooperation of weights and sliders, provides stable thread feeding tension, ensuring that the cosmetic thread is always taut; 4. The wire cutting mechanism achieves fixed-length conveying and cutting of beauty threads through the coordinated action of the horizontal traversing module and the gripper cylinder. The setting of the receiving box also ensures the orderly collection of beauty threads after processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the cosmetic thread barb cutting machine according to an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the barb cutting mechanism of the beauty thread barb cutting machine according to an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the cutting component of the cosmetic thread barb cutting machine according to an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the guide support assembly of the beauty thread barb cutting machine according to an embodiment of this application.

[0022] Figure 5 This is a schematic diagram of the guide support assembly of the beauty thread barb cutting machine according to an embodiment of this application.

[0023] Figure 6This is a schematic diagram of the wire feeding mechanism of the cosmetic thread barb cutting machine according to an embodiment of this application.

[0024] Figure 7 This is a schematic diagram of the wire cutting mechanism of the beauty thread barb cutting machine according to an embodiment of this application.

[0025] Figure 8 This is a schematic diagram of the cutting mechanism of the cosmetic thread barb cutting machine according to an embodiment of this application.

[0026] Figure 9 This is a schematic diagram of the structure of the first guide tube of the cosmetic thread barb cutting machine according to an embodiment of this application.

[0027] The components in the diagram are labeled as follows: machine base 1, wire feeding mechanism 2, wire feeding frame 21, wire feeding reel 22, first guide wheel 23, second guide wheel 24, first winding rod 25, second winding rod 26, guide rail 27, weight 28, barbed cutting mechanism 3, frame 31, rotating frame 32, first cutting assembly 33, first mounting plate 331, blade mounting frame 332, blade 333, second rotary drive motor 334, second cutting assembly 34, first rotary drive motor 35. Guide support assembly 36, first mounting block 361, second mounting block 362, guide assembly 363, support block 364, protrusion block 365, groove 366, wire cutting mechanism 4, gantry frame 41, horizontal transverse module 42, first vertical drive cylinder 43, first gripper cylinder 44, first horizontal drive cylinder 45, second mounting plate 46, shearing assembly 47, second gripper cylinder 48, receiving box 49, first guide tube 5, trumpet-shaped opening 51. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] like Figure 1 As shown, an embodiment of this application discloses a barb cutting machine for cosmetic threads, including a machine base 1, on which a thread feeding mechanism 2, a barb cutting mechanism 3 and a thread pulling and cutting mechanism 4 are sequentially arranged; The barb cutting mechanism 3 includes a frame 31, a rotating frame 32 is provided inside the frame 31, the rotating frame 32 is rotatably connected to the frame 31, a first cutting component 33 and a second cutting component 34 are respectively provided on the rotating frame 32, the first cutting component 33 and the second cutting component 34 are arranged symmetrically, and also includes a rotation drive mechanism for driving the rotating frame 32 to rotate.

[0030] In practice, the thread feeding mechanism 2 feeds the cosmetic thread through the rotating frame 32. The tail end of the cosmetic thread is held by the thread cutting mechanism 4 at the cutting mechanism. Then, the first cutting component 33 and the second cutting component 34 perform barbed cutting on the cosmetic thread from two directions. After cutting, the thread cutting mechanism 4 moves the cosmetic thread forward a set distance, and then the rotating frame 32 rotates to a new angle. The first cutting component 33 and the second cutting component 34 repeat the cutting action to create barbed structures at different angles. This cycle continues until the cosmetic thread is fed to a specified length. The thread cutting mechanism 4 then cuts the cosmetic thread and holds the end of the thread again to begin the next processing cycle.

[0031] In this structure, the setting of the wire feeding mechanism 2, the barb cutting mechanism 3 and the wire pulling and cutting mechanism 4 realizes the automated continuous operation of beauty thread processing. At the same time, the design of the rotating frame 32 of the barb cutting mechanism 3 enables the first cutting component 33 and the second cutting component 34 to rotate with the rotating frame 32 to realize the ring multi-angle cutting operation.

[0032] In this embodiment, as Figure 2 As shown, the rotary drive mechanism is a first rotary drive motor 35 disposed at one end of the rotary frame 32. The drive end of the first rotary drive motor 35 is connected to one end of the rotary frame 32, and the other end of the rotary frame 32 is rotatably connected to the frame 31 through a bearing.

[0033] In operation, after the first rotary drive motor 35 starts, its output shaft drives the rotating frame 32 to rotate stably around the bearing. By precisely controlling the rotation angle and speed of the motor, the rotating frame 32 can be positioned at any angle within the range of 0-360 degrees, thus meeting the processing requirements of different annular barb cutting angles for cosmetic sutures. When the cutting angle needs to be adjusted, the control system sends a command to the first rotary drive motor 35. The motor drives the rotating frame 32 to rotate to the target angle according to preset parameters and then stops, ensuring that the first cutting component 33 and the second cutting component 34 can be accurately aligned with the position to be cut on the cosmetic suture, improving the consistency and accuracy of the barb angle.

[0034] In this embodiment, as Figure 3 As shown, both the first cutting component 33 and the second cutting component 34 include a first mounting plate 331. A blade 333 mounting bracket 332 is provided on the first mounting plate 331. The blade 333 mounting bracket 332 is provided with a blade 333 and a second rotary drive motor 334 that drives the blade 333 to perform rotary cutting motion.

[0035] In operation, the second rotary drive motor 334 drives the blade 333 to rotate at high speed, while the blade 333 mounting bracket 332 provides a stable mounting base for the blade 333, ensuring that the blade 333 does not wobble or shift during the cutting process. When the cosmetic thread is conveyed to the cutting position and stably supported by the guide support assembly 36, the blades 333 of the first cutting assembly 33 and the second cutting assembly 34, driven by the second rotary drive motor 334, cut the surface of the cosmetic thread from opposite directions, forming a barb structure with a preset angle and depth.

[0036] In this embodiment, as Figure 8 and Figure 9 As shown, both ends of the frame 31 are provided with through holes for beauty threads to pass through. A first guide tube 5 is provided in the through hole. The outer end of the guide tube is provided with a trumpet-shaped opening 51. The size of the trumpet-shaped opening 51 decreases from the outer side to the inner side of the frame 31.

[0037] Specifically, the first guide tube 5 guides the cosmetic thread as it enters and exits the frame 31, while the trumpet-shaped opening 51 effectively prevents the cosmetic thread from rubbing against or getting stuck on the edge of the through hole during the threading process. When the cosmetic thread is fed from the thread feeding mechanism 2 to the barbed cutting mechanism 3, it first contacts the larger end of the trumpet-shaped opening 51. As the cosmetic thread moves, the opening gradually narrows, guiding the cosmetic thread smoothly into the interior of the first guide tube 5.

[0038] The above structure ensures that the beauty thread passes stably through the frame 31 along the preset path, reducing cutting errors caused by positional deviation.

[0039] In this embodiment, as Figure 4 As shown, the rotating frame 32 is provided with a guide support component 36 for supporting the beauty thread in the middle, and the two ends of the guide support component 36 are fixedly connected to the rotating frame 32.

[0040] Specifically, the guide support component 36 rotates synchronously with the rotating frame 32 during its rotation, always providing both stable support and guidance for the beauty thread. When the beauty thread passes through the interior of the rotating frame 32, the guide support component 36 lifts and limits the beauty thread from its middle position.

[0041] This support method ensures that the cosmetic thread is positioned in a preset space during cutting, allowing the blades 333 of the first and second cutting components 33 to accurately target the area to be cut, further improving the precision and smoothness of the barb cutting. Simultaneously, the fixed connection between the guide support component 36 and the rotating frame 32 ensures structural stability during high-speed rotation, preventing loosening or displacement, thus guaranteeing the continuity and reliability of the entire cutting process.

[0042] In this embodiment, as Figure 4 As shown, the guide support assembly 36 includes a first mounting block 361, with both ends of the first mounting block 361 fixedly connected to the rotating frame 32. A second mounting block 362 is provided on the first mounting block 361. Guide components 363 for the beauty thread to pass through are provided at both ends of the second mounting block 362. A support block 364 for supporting the beauty thread is provided in the middle of the second mounting block 362.

[0043] Specifically, after the beauty thread exits from the first guide tube 5 at one end of the rotating frame 32, it first enters the guide component 363 at one end of the second mounting block 362. Guided by the guide component 363, it is guided to the support block 364, where it is supported and lifted. Then, it passes through the guide component 363 at the other end and enters the first guide tube 5 at the other end of the rotating frame 32. The cooperative arrangement of the guide component 363 and the support block 364 ensures a stable, straight transport path for the beauty thread within the rotating frame 32, preventing bending or deviation of the thread due to rotation of the rotating frame 32 or cutting vibrations. This ensures that the cutting component always accurately targets the beauty thread at its intended position.

[0044] In this embodiment, as Figure 4 As shown, the guide component 363 is a second guide tube, and both ends of the guide tube are provided with a trumpet-shaped opening 51. The size of the trumpet-shaped opening 51 decreases from the outer end to the inner end. The support block 364 is provided with a protrusion 365. The protrusion 365 has a sloping structure and a groove 366 for supporting the beauty thread. When cutting, the lower half of the cut part of the beauty thread is located in the groove 366.

[0045] Specifically, the flared openings 51 at both ends of the second guide tube are similar in structure to those of the first guide tube 5, further enhancing the guiding effect on the cosmetic thread. This ensures that the cosmetic thread maintains a stable posture when entering and exiting the guide support assembly 36. When the blade 333 cuts the cosmetic thread, the groove 366 forms a wrapping support for the lower half of the cut portion, effectively preventing the cosmetic thread from shifting or deforming due to force during the cutting process, ensuring the flatness of the cut and the consistency of the barb size. At the same time, the beveled structure also provides ample operating space for the blade 333 to cut, avoiding interference between the support block 364 and the blade 333, ensuring a smooth cutting process.

[0046] In this embodiment, as Figure 6 As shown, the wire feeding mechanism 2 includes a wire feeding frame 21. The wire feeding frame 21 is provided with a wire feeding wheel 22, a first guide wheel 23 and a second guide wheel 24 in sequence along the direction of movement of the beauty thread. A first winding rod 25 is provided between the wire feeding wheel 22 and the first guide wheel 23, and a second winding rod 26 is provided between the first guide wheel 23 and the second guide wheel. It also includes a vertically arranged guide rail 27, on which a slider is provided, the first guide wheel 23 is mounted on the slider, and a weight 28 is suspended on the first guide wheel 23.

[0047] Specifically, during the feeding process, the cosmetic thread is drawn from the feeding wheel 22 and sequentially passes through the first winding rod 25, the first guide wheel 23, the second winding rod 26, and the second guide wheel 24, forming a stable conveying path. The first winding rod 25 and the second winding rod 26 guide the cosmetic thread, preventing tangling during transport. When the cosmetic thread experiences tension fluctuations due to changes in the feeding speed, the slider slides up and down on the guide rail 27 according to the tension changes. The weight 28 applies a constant downward force to the first guide wheel 23 through its own weight, thereby dynamically adjusting the tension of the cosmetic thread. This ensures that the cosmetic thread is always under appropriate tension, preventing bending due to insufficient tension affecting cutting accuracy, or stretching, deformation, or even breakage due to excessive tension.

[0048] In the above structure, the mechanical counterweight tension adjustment structure realizes the automatic balance of tension during the thread feeding process, thereby improving the stability and continuity of the beauty thread delivery.

[0049] In this embodiment, as Figure 7 As shown, the wire cutting mechanism 4 includes a gantry frame 41, a horizontal traversing module 42 is provided on the gantry frame 41, a wire pulling assembly is provided on the drive end of the horizontal traversing module 42, and a wire cutting assembly is also provided on the gantry frame 41. The cable pulling assembly includes a first vertical drive cylinder 43, and a first gripper cylinder 44 is provided at the drive end of the first vertical drive cylinder 43. The wire cutting assembly includes a first horizontal drive cylinder 45 mounted on a gantry frame 41. The drive end of the first horizontal drive cylinder 45 is provided with a second mounting plate 46. The second mounting plate 46 is provided with a cutting assembly 47 and a second gripper cylinder 48. The lower part of the gantry frame 41 is also provided with a receiving box 49.

[0050] Specifically, the horizontal traverse module 42 drives the wire pulling assembly to move horizontally at regular intervals to achieve fixed-length traction of the cosmetic wire. When the end of the cosmetic wire is pulled to the tail end, the first horizontal drive cylinder 45 drives the second mounting plate 46 to move forward, the second gripper cylinder 48 clamps the cosmetic wire, and at the same time, the shearing assembly 47 cuts the cosmetic wire. After cutting, the first gripper cylinder 44 releases, and the cut cosmetic wire falls into the receiving box 49 under the action of gravity for collection. Subsequently, the first vertical drive cylinder 43 drives the first gripper cylinder 44 to move upward, and the horizontal traverse module 42 drives the wire pulling assembly to return to the initial position. Then, the first vertical drive cylinder 43 drives the first gripper cylinder 44 to move downward, and the first gripper cylinder 44 clamps the new end of the cosmetic wire again, while the second gripper cylinder 48 is released and returns to its original position under the action of the first horizontal drive cylinder 45, preparing for the next cutting action.

[0051] In the aforementioned mechanism, the horizontal traverse module 42 achieves fixed-length delivery of the beauty lines by precisely controlling the movement distance, while the receiving box 49 ensures that the processed beauty lines can be stacked in an orderly manner to avoid scattering and chaos.

[0052] In this embodiment, a method for cutting barbs on cosmetic sutures, using the aforementioned cosmetic suture barb cutting machine, comprises the following steps: S100: The thread feeding mechanism 2 feeds the beauty thread, which passes through the rotating frame 32. The tail end of the beauty thread is held by the first gripper cylinder 44 at the cutting mechanism. S200: The first cutting component 33 and the second cutting component 34 perform barbed cutting on the cosmetic thread from two directions respectively; S300: The first gripper cylinder 44 grips the cosmetic thread and moves it forward a certain distance. The rotating frame 32 rotates at a certain angle, and the first cutting component 33 and the second cutting component 34 perform barbed cutting on the cosmetic thread again. S400: Repeat step S300. After the first gripper cylinder 44 clamps the beauty thread and moves forward a specified length, the cutting component 47 and the second gripper cylinder 48 extend. The second gripper cylinder 48 clamps the beauty thread. Then the cutting component 47 cuts the beauty thread, the first gripper cylinder 44 releases, and the beauty thread falls into the receiving box 49. S500: The first gripper cylinder 44 returns to the initial position and clamps the end of the cosmetic thread; the second gripper cylinder 48 releases the cosmetic thread. S600: Repeat steps S200 to S500.

[0053] This method enables a fully automated production process for barbed cutting of cosmetic sutures. From thread feeding and barb cutting to length trimming and splicing, no manual intervention is required, significantly improving production efficiency. Through the coordinated operation of various mechanisms, not only is the precision and consistency of barb cutting guaranteed, but the circular cutting requirements for cosmetic sutures can also be met.

[0054] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A barbed cutting machine for cosmetic sutures, characterized in that: It includes a machine base (1), on which a wire feeding mechanism (2), a barb cutting mechanism (3) and a wire pulling and cutting mechanism (4) are sequentially arranged. The barb cutting mechanism (3) includes a frame (31), a rotating frame (32) is provided inside the frame (31), the rotating frame (32) is rotatably connected to the frame (31), a first cutting component (33) and a second cutting component (34) are respectively provided on the rotating frame (32), the first cutting component (33) and the second cutting component (34) are arranged symmetrically relative to each other, and also includes a rotation drive mechanism for driving the rotating frame (32) to rotate.

2. The cosmetic thread barb cutting machine as described in claim 1, characterized in that: The rotary drive mechanism is a first rotary drive motor (35) located at one end of the rotary frame (32). The drive end of the first rotary drive motor (35) is connected to one end of the rotary frame (32), and the other end of the rotary frame (32) is rotatably connected to the frame (31) through a bearing.

3. The cosmetic thread barb cutting machine as described in claim 1, characterized in that: The first cutting assembly (33) and the second cutting assembly (34) both include a first mounting plate (331), on which a blade (333) mounting bracket (332) is provided, and on the blade (333) mounting bracket (332) a blade (333) and a second rotary drive motor (334) for driving the blade (333) to perform rotary cutting motion are provided.

4. The cosmetic thread barb cutting machine as described in claim 1, characterized in that: Both ends of the frame (31) are provided with through holes for beauty threads to pass through. A first guide tube (5) is provided in the through hole. The outer end of the guide tube is provided with a trumpet-shaped opening (51). The size of the trumpet-shaped opening (51) decreases from the outer side to the inner side of the frame (31).

5. The cosmetic thread barb cutting machine as described in claim 1, characterized in that: The rotating frame (32) is provided with a guide support component (36) for supporting the beauty thread in the middle, and the two ends of the guide support component (36) are fixedly connected to the rotating frame (32).

6. The cosmetic thread barb cutting machine as described in claim 5, characterized in that: The guide support assembly (36) includes a first mounting block (361), both ends of which are fixedly connected to the rotating frame (32). A second mounting block (362) is provided on the first mounting block (361). Guide components (363) for beauty threads to pass through are provided at both ends of the second mounting block (362). A support block (364) for supporting beauty threads is provided in the middle of the second mounting block (362).

7. A barbed cutting machine for cosmetic threads as described in claim 6, characterized in that: The guide component (363) is a second guide tube, and both ends of the guide tube are provided with flared openings (51), the size of the flared openings (51) decreasing from the outer end to the inner end. The support block (364) is provided with a protrusion (365), the protrusion (365) is a sloping structure, and the protrusion (365) is provided with a groove (366) for supporting the beauty thread. When cutting, the lower half of the cut part of the beauty thread is located in the groove (366).

8. A barbed cutting machine for cosmetic threads as described in claim 1, characterized in that: The wire feeding mechanism (2) includes a wire feeding frame (21). The wire feeding frame (21) is provided with a wire feeding wheel (22), a first guide wheel (23), and a second guide wheel (24) in sequence along the direction of the beauty thread movement. A first winding rod (25) is provided between the wire feeding wheel (22) and the first guide wheel (23). A second winding rod (26) is provided between the first guide wheel (23) and the second guide wheel. It also includes a vertically arranged guide rail (27), on which a slider is provided, the first guide wheel (23) is mounted on the slider, and a weight (28) is suspended on the first guide wheel (23).

9. A barbed cutting machine for cosmetic threads as described in claim 1, characterized in that: The wire cutting mechanism (4) includes a gantry frame (41), a horizontal traversing module (42) is provided on the gantry frame (41), a wire pulling assembly is provided on the drive end of the horizontal traversing module (42), and a wire cutting assembly is also provided on the gantry frame (41). The pull wire assembly includes a first vertical drive cylinder (43), and the drive end of the first vertical drive cylinder (43) is provided with a first gripper cylinder (44). The wire cutting assembly includes a first horizontal drive cylinder (45) mounted on a gantry (41), the drive end of the first horizontal drive cylinder (45) is provided with a second mounting plate (46), and the second mounting plate (46) is provided with a cutting assembly (47) and a second gripper cylinder (48). The lower part of the gantry frame (41) is also provided with a receiving box (49).

10. A method for cutting barbs on cosmetic sutures, using the cosmetic suture barb cutting machine according to any one of claims 1 to 9, characterized in that, The steps are as follows: S100: The thread feeding mechanism (2) feeds the beauty thread, which passes through the rotating frame (32) and is held by the first gripper cylinder (44) at the cutting mechanism. S200: The first cutting component (33) and the second cutting component (34) perform barbed cutting on the cosmetic thread from two directions respectively; S300: The first gripper cylinder (44) grips the cosmetic thread and moves it forward a certain distance. The rotating frame (32) rotates at a certain angle. The first cutting component (33) and the second cutting component (34) then perform barbed cutting on the cosmetic thread again. S400: Repeat step S300. After the first gripper cylinder (44) clamps the beauty thread and moves forward a specified length, the cutting component (47) and the second gripper cylinder (48) extend. The second gripper cylinder (48) clamps the beauty thread. Then the cutting component (47) cuts the beauty thread, the first gripper cylinder (44) releases, and the beauty thread falls into the receiving box (49). S500: The first gripper cylinder (44) returns to the initial position and clamps the end of the cosmetic thread, and the second gripper cylinder (48) releases the cosmetic thread; S600: Repeat steps S200 to S500.