Medical suture automatic winding and cutting equipment

Abstract

The present invention relates to the technical field of medical device processing equipment, and particularly relates to an automatic winding and cutting device for medical sutures after processing. The device comprises a body (1), a reel device, a winding device, a suture length setting device, a wire pressing device, a cutting device, a wire setting box (2), and a control panel (3); a reel device is provided on one side of the body (1); a winding device is provided on one side of the reel device; a wire paying-off platform (8) of the winding device is provided with a wire paying-off mechanism for paying-off medical sutures; a suture length setting device is provided on the other side of the body for setting the length of medical sutures; a wire pressing device is provided next to the suture length setting device; a cutting device is provided on the middle side of a chain (26) of the suture length setting device for cutting medical sutures; the wire setting box is placed on the platform of the body; after cutting, the sutures are blown into the wire setting box by a nozzle provided on the body; and the control panel (3) is provided at the front of the body (1).

Description

Technical Field

[0001] The invention discloses an automatic winding and cutting device for medical sutures, which relates to the technical field of medical device processing equipment, and in particular to an automatic winding and cutting device for processed medical sutures. Background Art

[0002] Medical sutures are an essential tool in current surgical procedures. They have a long history and are currently classified into two categories: absorbable and non-absorbable. They are primarily used for suturing or ligating human tissue. The required length of medical suture varies depending on the intended location and usage scenario, and manufacturers offer a variety of length specifications.

[0003] Currently, most medical suture manufacturers in the market manually measure and cut the sutures after production. This method is not only prone to contamination but also inefficient. Especially for sutures with high elongation, manual operation cannot be precise and stable, resulting in ineffective length assurance and increased processing costs. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art by providing an automatic medical suture winding and cutting device that can automatically wind multiple turns of suture and cut them, thereby quickly obtaining sutures of precise lengths. This device avoids contamination caused by manual labor and saves a significant amount of processing time and cost.

[0005] The technical solution adopted by the present invention to achieve the above-mentioned purpose is:

[0006] The invention discloses an automatic winding and cutting device for medical sutures, comprising a machine body, a spool device, a winding device, a suture length-fixing device, a thread pressing device, a cutting device, a thread setting box and a control panel.

[0007] A wire drum device is provided on one side of the fuselage, and a winding device is provided on one side of the wire drum device. A wire pay-off mechanism is provided on the wire pay-off table of the wire winding device for paying out medical sutures; a suture length-fixing device is provided on the other side of the fuselage for fixing the length of medical sutures; a wire pressing device is provided next to the suture length-fixing device, and a cutting device is provided on the middle side of the chain of the suture length-fixing device for cutting medical sutures; the wire box is placed on the platform of the fuselage, and after the sutures are cut, they are blown into the wire box by a nozzle provided on the fuselage; and a control panel is provided at the front of the fuselage.

[0008] The wire drum device includes a wire drum motor, a rear bracket, a front bracket, a wire drum shaft bearing, a wire drum bracket, a wire drum shaft, a wire drum, a spring, and a wire drum locking nut. The wire drum motor is mounted on the front and rear brackets of the wire drum motor. The front and rear brackets, along with the wire drum bracket, are mounted on the machine body table. The wire drum shaft is fixedly connected (welded) to the output shaft of the wire drum motor. The wire drum is mounted on the wire drum shaft. Turning the wire drum locking nut compresses the spring, thereby securing the wire drum.

[0009] The winding device includes a pay-off platform, a pay-off motor, a pay-off main gear, a pay-off sub-gear, a pay-off rod, a guide rail motor, a pay-off guide rail, and a threaded rod. The guide rail motor is mounted on the platform of the fuselage, and the threaded rod is connected to the guide rail motor. The two pay-off guide rails are symmetrically parallel to the two sides of the threaded rod and are fixedly mounted on the platform of the fuselage. The pay-off platform is provided with five columns. The middle main column is provided with a threaded hole for use with the threaded rod, and the four secondary columns are provided with through holes for sliding with the pay-off guide rails. As a result, the pay-off platform moves axially under the action of the guide rail motor. The pay-off motor and the pay-off rod are both mounted (welded) on the pay-off platform. The pay-off main gear is provided on the shaft of the pay-off motor, and the pay-off sub-gear is provided on the rotating shaft of the pay-off rod. The pay-off main gear is meshed with the pay-off sub-gear. The rotating shaft is provided with a center hole for the suture to pass through, and the pay-off rod is provided with multiple thread holes for guiding the suture.

[0010] The suture fixed length device includes a fixed length motor, a fixed length main gear, a chain, a fixed length left gear, a fixed length right gear, a chain left bracket, a chain right bracket, a left spool, a right spool, a left spool plate, a right spool plate, a fixed length slider, an upper spool guide rail, and a lower spool guide rail. The left spool and the right spool are respectively fixed to the left spool plate and the right spool plate by screws. The boss below the left spool plate is provided with a circular groove to cooperate with the lower spool guide rail for smooth sliding. After the left spool plate is placed on the lower spool guide rail, the fixed length slider is installed above the left spool plate. The circular groove provided thereon cooperates with the upper spool guide rail for smooth sliding and the fixed length slider is fixed to the left spool plate by a pin.

[0011] The fixed-length slider is equipped with a rectangular block that fits into the gap of the chain, allowing the chain to drive the left spool to move. The right spool plate is similar to the left spool plate, but the fixed-length slider is located below. As a result, the left and right spools will move outward or inward simultaneously to achieve the purpose of fixing the length of the suture.

[0012] The ends of the chain mesh with the left and right fixed-length gears, respectively, which are fixed to the left and right chain brackets via bearings. A main fixed-length gear is located in the middle of the chain, meshing with the chain and fixed to the output shaft of the fixed-length motor. The fixed-length motor is mounted on the platform of the machine body.

[0013] The wire pressing device includes a wire pressing rod, a wire pressing cylinder, and a wire pressing cylinder bracket. The wire pressing rod is fixedly connected to the push rod of the wire pressing cylinder. The push rod of the wire pressing cylinder is provided with a limit device, which stops moving when it reaches a certain position. When the wire pressing cylinder is operated, the wire pressing platform provided on the wire pressing rod will tighten or loosen the working platform on the wire wheel. The wire pressing cylinder is installed on the wire pressing cylinder bracket, and the wire pressing cylinder bracket is installed on the fuselage platform.

[0014] The cutting device comprises an upper thread pressing clamp, a lower thread pressing clamp, an upper blade, a lower blade and a cutting cylinder; the cutting cylinder is mounted on the machine body, the upper thread pressing clamp and the upper blade are respectively fixedly connected to the push rod of the cutting cylinder, the lower blade and the lower thread pressing clamp are respectively connected to the connecting rod provided on the cutting cylinder (51), the connecting rod on the cutting cylinder is provided with a limit device, and the movement is stopped when a certain position is reached. After the suture is fixed in length, the upper thread pressing clamp and the lower thread pressing clamp press the suture tightly, and then the upper blade and the lower blade are tightened to cut the suture.

[0015] A line box is provided just below the line wheel and is placed on the platform of the fuselage. After the suture is cut, it is blown into the line box by a nozzle provided on the fuselage.

[0016] A control panel is provided at the front of the machine body (next to the fixed-length motor), which is connected to the electrical control box. The operating parameters of the medical suture automatic winding and cutting equipment are set through the control panel.

[0017] A thread winder is provided on the body above the thread pressing table. The thread winder includes a thread winder rod and a thread winder cylinder. The thread winder rod can move up and down through the thread winder cylinder. After the thread pressing rod returns to its original position, the thread drum starts to wind up the thread, and the thread pay-off rod starts to retreat. The thread winder rod moves downward to wind the thread between the thread pressing table and the shaping table, and then the thread pressing table presses the shaping table. The next round of automatic winding and cutting is performed according to the number of cutting times set by the control panel.

[0018] The automatic winding and cutting equipment for medical sutures is equipped with an electrical control box. A chassis is provided at the lower part of the fuselage 1. The electrical control box is arranged inside the chassis. The electrical control box is equipped with an electrical control switch, AC contactor, relay, PLC programmable controller, control circuit board, motor controller, air source processor, solenoid valve, etc.

[0019] Working principle:

[0020] The automatic medical suture winding and cutting device is a device for automatically winding and cutting medical sutures, comprising a body, one side of which is provided with a reel device. The reel motor bracket of the reel device is provided with a reel motor connected to the reel. The rotor of the reel motor is fixedly connected to one side of the reel shaft of the reel. The reel shaft is connected to the reel bracket via a bearing, and the reel bracket is fixed to the body. The other side of the reel shaft is provided with a thread, equipped with a spring and a nut. The nut applies a certain pressure to the reel by rotating and compressing the spring, so that the reel does not rotate relative to the reel shaft within a certain force. When the tension is too high during operation of the device, the mechanical protection is triggered, causing the reel to break away from the angular fixation with the reel shaft, thereby preventing the suture from breaking.

[0021] A winding device is provided next to the wire reel device. The pay-off platform of the winding device can slide smoothly on the pay-off guide rail provided in the winding device. The pay-off guide rail is fixed on the machine body. The guide rail motor cooperates with the threaded shaft to make the pay-off platform move axially on the pay-off guide rail at a set speed.

[0022] The pay-off platform is provided with a pay-off mechanism, which consists of a pay-off rod, a gear, and a pay-off motor. The rotating shaft of the pay-off rod is provided with a central hole, and the suture to be cut passes through the central hole and the thread hole. This design avoids the problem of suture entanglement. The rotor shaft of the pay-off motor is provided with a gear, which meshes with the gear provided on the rotating shaft of the pay-off rod, thereby achieving the effect of the pay-off motor driving the pay-off rod to rotate.

[0023] A suture length-fixing device is provided on the other side of the machine body. The suture length-fixing device consists of a fixed-length motor, gears, chains, sliding reels, and reel guide rails. The fixed-length motor is fixed to the machine body. A gear is provided on the rotor shaft of the fixed-length motor. The gear meshes with the middle part of the chain and drives the chain to rotate. Chain racks are provided at both ends of the chain, which are fixed to the machine body. The horizontal axis of the chain rack is provided with gears and bearings. The two ends of the chain mesh with the gears on the chain rack, allowing the chain to rotate smoothly under the operation of the fixed-length motor. The reel guide rails are provided at the upper and lower ends of the chain. The guide rails of the reel guide rails are installed next to the chain rack and fixed to the machine body. The sliding reel is divided into a left sliding reel and a right sliding reel. The right sliding reel comprises a reel, a reel plate, and a slider. The reel is fixed to the reel plate by screws. The semicircular groove of the reel plate is connected to the upper guide rail of the reel guide rail. The slider is fixed to the bottom of the reel plate by a pin. The semicircular groove of the slider is connected to the lower guide rail of the reel guide rail. The rectangular column structure of the slider engages with the chain. The right sliding reel is driven by the chain to slide to the right under the forward rotation of the fixed-length motor. In contrast, the slider of the left sliding reel is located above and is driven by the chain to slide to the left under the forward rotation of the fixed-length motor. The reel is divided into a left reel and a right reel. Under the structure, the distance between the left and right reels increases when the fixed-length motor rotates forward and decreases when the fixed-length motor rotates backward. This achieves a fixed length of the suture thread wound on the reel.

[0024] A wire pressing device is provided next to the suture length fixing device, and the wire pressing device is composed of a wire pressing rod, a wire pressing cylinder and a wire pressing cylinder frame. The wire pressing cylinder frame is fixed on the machine body, and the wire pressing rod is welded to the axis of the wire pressing cylinder. Driven by the wire pressing cylinder, the wire pressing platform on the wire pressing rod is press-fitted with the I-shaped platform on the wire wheel. The wire pressing platform on the wire pressing rod is provided with multiple grooves to effectively fix the suture, so that the wire pay-off platform can be efficiently wound.

[0025] A cutting device is provided in the middle of the chain, and the cutting device includes an upper blade and a lower blade. Thread fixing clamps are provided on the left and right sides of the upper blade and the lower blade. When cutting the thread, the thread fixing clamps are driven by the thread cutting cylinder provided on the cutting device to press the thread, which can avoid the thread being tight or scattered during the process of cutting the thread. After the thread is pressed, the upper blade and the lower blade cut the thread under the drive of the thread cutting cylinder.

[0026] After the cutting device stops running, it returns to its initial position, the thread pressing device returns to its initial position, the spool returns to its initial position, the pay-off rod returns to the middle of the thread pressing platform and the spool shaping platform, and the spool begins to reverse and rewind the thread until the thread is suspended in the air. A thread winder is provided on the top of the machine body, located above the spool. The thread winder consists of a cylinder and a thread winder rod. After the spool has rewound the thread, the thread winder rod is sent downward to wind the thread between the thread pressing platform and the spool shaping platform, thereby starting the next round of automatic winding and cutting.

[0027] The automatic winding and cutting equipment for medical sutures has a reasonable design and a compact structure. Since it is equipped with a body, a reel device, a winding device, a suture length-fixing device, a wire pressing device, a cutting device, a wire box, and a control panel, the automatic winding and cutting equipment for medical sutures is equipped with an electrical control box. The electrical control box is equipped with an electrical control switch, an AC contactor, a relay, a PLC programmable controller, a control circuit board, a motor controller, an air source processor, and a solenoid valve. Under the control of the PLC programmable controller, the medical suture can be automatically wound and cut according to the set length. After the suture is cut, it is blown into the wire box by a nozzle provided on the body, which is extremely convenient to use.

[0028] The wire box is easy to replace. After the wire box is full of sutures, it can be quickly pulled out and replaced without affecting the operation of the equipment.

[0029] The automatic medical suture winding and cutting equipment is easy to operate and features several safety features. First, the tension of the suture reel can be adjusted using a torque wrench. When the set force is exceeded, the reel and the reel motor slide relative to each other, preventing the suture from breaking due to excessive force caused by misoperation. Second, a baffle on the pay-off table separates the suture from the rotating shaft, preventing suture entanglement due to improper operation. Third, rubber strips are installed on the upper and lower clamps to prevent suture damage.

[0030] Previously, finished sutures were manually trimmed to length and then cut. This made it easy for negligence to cause the sutures to be too short or too long, resulting in substandard products and unstable production. However, the automatic medical suture winding and cutting equipment, once the parameters are set, automatically winds, trims, and cuts the sutures, consistently producing sutures of the exact length. This continuous operation ensures stable and efficient production, significantly reducing the risk of contamination from human operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below with reference to the accompanying drawings:

[0032] Figure 1 This is a forward schematic diagram of an automatic winding and cutting device for medical sutures;

[0033] Figure 2This is a rear view schematic diagram of an automatic winding and cutting device for medical sutures;

[0034] Figure 3 A schematic diagram of a spool device for an automatic winding and cutting device for medical sutures;

[0035] Figure 4 A top view of a winding device for an automatic winding and cutting device for medical sutures;

[0036] Figure 5 A side view schematic diagram of a winding device for an automatic winding and cutting device for medical sutures;

[0037] Figure 6 This is a comprehensive schematic diagram of the suture length fixing device, thread pressing device and cutting device of the automatic winding and cutting equipment for medical sutures.

[0038] In the figure: 1. Machine body, 1-1. Platform, 2. Wire box, 3. Control panel, 4. Wire reel locking nut, 5. Spring, 6. Wire reel, 7. Wire reel shaft, 8. Pay-off platform, 9. Pay-off motor, 10. Pay-off rod, 11. Pay-off main gear, 12. Pay-off sub-gear. 13. Rotating shaft, 14. Wire hole, 141. Distal wire hole, 15. Wire pressing platform, 16. Forming table, 17. Wire pressing cylinder, 18. Wire pressing rod, 19. Wire pressing bracket, 20. Right wire wheel, 21. Left wire wheel, 22. Guide motor, 23. Pay-off guide rail, 24. Threaded rod, 25. Fixed-length motor, 26. Chain, 27. Upper wire clamp, 28. Lower wire clamp, 29. Upper blade, 30. Lower blade, 31. Nozzle, 32. Wire rod, 33. Rear of the wire reel motor Bracket, 34. Bobbin motor, 35. Bobbin motor front bracket, 36. Bobbin shaft bearing, 37. Bobbin bracket, 38. Baffle, 39. Main column, 40. Secondary column, 41. Fixed-length main gear, 42. Fixed-length left gear, 43. Fixed-length right gear, 44. Chain left bracket, 45. Chain right bracket, 46. Left spool plate, 47. Right spool plate, 48. Fixed-length slider, 49. Upper spool guide rail, 50. Lower spool guide rail, 51. Cutting cylinder, 52. Threading cylinder. DETAILED DESCRIPTION

[0039] In order to clearly understand the technical content of the present invention, the specific embodiments of the present invention will be described below with reference to the accompanying drawings and examples:

[0040] It is stated that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0041] As shown in the figure, it shows a specific embodiment of the present invention:

[0042] like Figure 1 、 2 As shown in Figures 3, 4, 5 and 6, the present invention discloses an automatic winding and cutting device for medical sutures, which includes a body 1, a reel device, a winding device, a suture length fixing device, a wire pressing device, a cutting device, a wire box 2 and a control panel 3.

[0043] A wire drum device is provided on one side of the fuselage, and a winding device is provided on one side of the wire drum device. A wire pay-off mechanism is provided on the wire pay-off platform 8 of the wire winding device for paying out medical sutures; a suture length-fixing device is provided on the other side of the fuselage for fixing the length of medical sutures; a wire pressing device is provided next to the suture length-fixing device, and a cutting device is provided on the middle side of the chain 26 of the suture length-fixing device for cutting medical sutures; the wire box is placed on the platform of the fuselage, and after the sutures are cut, they are blown into the wire box by a nozzle provided on the fuselage; and a control panel 3 is provided at the front of the fuselage 1.

[0044] When the automatic winding and cutting equipment for medical suture is working, the wire drum locking nut 4 is rotated to tighten the spring 5 so that the wire drum 6 cannot roll on the wire drum shaft column 7. Through the control panel 3, under the control of the PLC programmable controller, the wire drum 6 is rotated forward to pull the suture to the winding device. The winding device includes a wire pay-off platform 8, a wire pay-off motor 9, a wire pay-off rod 10, a wire pay-off main gear 11, and a wire pay-off sub-gear 12. The suture passes through the hole in the rotating shaft 13 of the wire pay-off rod 10, and then passes through the wire hole 14 of the wire pay-off rod 10 in sequence, and then naturally hangs down between the wire pressing platform 15 and the working table 16. The wire pressing platform 15 is pressed toward the working table 16 to fix the suture. Then the wire pay-off rod 10 winds the combination of the left wire wheel 21 and the right wire wheel 20 into a full circle, and then feeds toward the axial direction of the wire wheel to continue winding a full circle until the suture has completely wrapped around the left wire wheel 21 and the right wire wheel 20. After the suture is fully wound around the left and right suture wheels 21 and 20, the fixed-length motor 25 in the suture fixing device rotates forward, and the chain 26 rotates counterclockwise to separate the left and right suture wheels 21 and 20 outward. At the same time, the spool 6 rotates forward to release the suture until the suture reaches the set length. After the suture is fixed in length, the upper and lower suture clamps 27 and 28 of the cutting device are tightened to fix the suture, and the upper and lower blades 29 and 30 are combined to cut the suture. Then, the upper and lower suture clamps 27 and 29 are released, and the suture pressing platform 15 retreats to its original position. After the suture pressing platform 15 retreats to its original position, the nozzle 31 on the fuselage 1 blows the suture to the suture box 2 for collection. The far end of the pay-off rod passes through the wire hole and retracts to between the wire pressing table and the shaping table. The wire reel begins to reverse and rewind the wire. The wire winding rod on the machine body is pushed downward until the thread is wound between the wire pressing table and the shaping table, and then returns to its original position. Afterwards, the wire pressing table presses the thread to start the next round of winding and cutting.

[0045] like Figure 1 、 2 As shown, after the suture is cut and stored in the wire box 2, the distal end wire hole 141 of the wire pay-off rod 10 retracts to between the wire pressing table 15 and the work-forming table 16, and the wire drum 6 starts to reverse and reel in the wire, and the wire winding rod 32 is provided on the fuselage 1 and pushed downward until the suture is wound between the wire pressing table 15 and the work-forming table 16, and then returns to its original position, and then the wire pressing table 15 presses the suture to start the next round of winding and cutting.

[0046] like Figure 2 、 3 As shown, the cable drum device includes a cable drum motor 34, a cable drum motor rear bracket 33, a cable drum motor front bracket 35, a cable drum shaft column bearing 36, a cable drum bracket 37, a cable drum shaft column 7, a cable drum 6, a spring 5, and a cable drum locking nut 4. The cable drum motor 34 is welded to the cable drum motor front bracket 35 and the cable drum motor rear bracket 33. The cable drum motor front bracket 35, the cable drum motor rear bracket 33, and the cable drum bracket 37 are riveted to the surface of the fuselage 1. The cable drum shaft column 7 is connected to the output shaft of the cable drum motor 34. The cable drum 6 is installed on the cable drum shaft column 7. The cable drum locking nut 4 is rotated to compress the spring 5 to fix the cable drum 6.

[0047] Preferably, the wire drum locking nut 4 can be locked using a torque wrench with a certain force set according to the material and diameter of the cut suture, so that when the wire drum 6 is subjected to excessive force during operation of the equipment, the wire drum 6 and the wire drum shaft 7 can slide relative to each other to avoid the suture from breaking.

[0048] like Figure 2 、 4 As shown in Figure 5, the winding device includes a pay-off platform 8, a pay-off motor 9, a pay-off main gear 11, a pay-off sub-gear 12, a pay-off rod 10, a guide rail motor 22, a pay-off guide rail 23, and a threaded rod 24. The guide rail motor 22 is welded to the platform of the fuselage 1, and the threaded rod 24 is connected to the guide rail motor 22. The pay-off guide rail 23 is symmetrically parallel to both sides of the threaded rod 24 and is riveted and fixed to the platform of the fuselage 1. The pay-off platform 8 is provided with five columns, and the middle main column 39 is provided with a threaded hole for use with the threaded rod 24, and the four secondary columns 40 are provided with through holes for sliding with the pay-off guide rail 23, so that the pay-off platform 8 is axially moved under the action of the guide rail motor 22. The pay-off motor 9 and the pay-off rod 10 are both welded to the pay-off platform 8. A pay-off main gear 11 is provided on the shaft of the pay-off motor 9, and a pay-off sub-gear 12 is provided on the rotating shaft 13 of the pay-off rod 10. The pay-off main gear 11 is engaged with the pay-off sub-gear 12. The rotating shaft 13 is provided with a middle hole for the suture to pass through, and the pay-off rod 10 is provided with multiple wire holes 14 to guide the suture.

[0049] Preferably, a baffle 38 is provided on the pay-off platform 8 to separate the rotating shaft 13 and the pay-off motor 9 to prevent the pay-off motor 9 from accidentally winding the suture.

[0050] like Figure 1 、 4 As shown in Figure 5, the thread fixed length device includes a fixed length motor 25, a fixed length main gear 41, a chain 26, a fixed length left gear 42, a fixed length right gear 43, a chain left bracket 44, a chain right bracket 45, a left line wheel 21, a right line wheel 20, a left line wheel plate 46, a right line wheel plate 47, a fixed length slider 48, an upper line wheel guide rail 49, and a lower line wheel guide rail 50. The left line wheel 21 and the right line wheel 20 are respectively fixed to the left line wheel plate 46 and the right line wheel plate 47 by screws. The boss below the plate 46 is provided with a circular groove to cooperate with the lower line wheel guide rail 50 for smooth sliding. After the left line wheel plate 46 is placed on the lower line wheel guide rail 50, the fixed-length slider 48 is installed above the left line wheel plate. The circular groove provided thereon cooperates with the upper line wheel guide rail 49 for smooth sliding and the fixed-length slider 48 is fixed to the left line wheel plate 46 by a pin. The fixed-length slider 48 is provided with a rectangular long block embedded in the gap of the chain 26, so that the chain 26 drives the left line wheel 21 to move. The right line wheel plate 47 is similar to the left line wheel plate 46 in setting, but the fixed-length slider 48 of the right line wheel plate 47 is located below, thereby the left line wheel 21 and the right line wheel 20 will move outward or inward at the same time to achieve the purpose of fixing the length of the suture. The ends of the chain 26 are respectively engaged with the fixed-length left gear 42 and the fixed-length right gear 43. The fixed-length left gear 42 and the fixed-length right gear 43 are respectively fixed to the chain left bracket 44 and the chain right bracket 45 via bearings. A fixed-length main gear 41 is provided in the middle of the chain 26. The fixed-length main gear 41 meshes with the chain 26 and is fixed to the fixed-length motor 25. The fixed-length motor 25 is mounted on the platform 1-1 of the fuselage 1.

[0051] like Figure 2 、 6 As shown, the wire pressing device includes a wire pressing rod 18, a wire pressing cylinder 17, and a wire pressing cylinder bracket 19. The wire pressing rod 18 is fixedly connected to the push rod of the wire pressing cylinder 17. The push rod of the wire pressing cylinder 17 is provided with a limit device, which stops the movement when it reaches a certain position. When the wire pressing cylinder 17 is in operation, the wire pressing platform 15 provided on the wire pressing rod 18 will tighten or loosen the work-shaped platform 16 on the wire wheel. The wire pressing cylinder 17 is welded to the wire pressing cylinder bracket 19, and the wire pressing cylinder bracket 19 is riveted to the platform 1-1 of the fuselage 1.

[0052] Preferably, the surface of the crimping table 15 is provided with multiple grooves, which can effectively fix the sutures.

[0053] like Figure 2 、 6As shown, the cutting device includes an upper thread pressing clamp (27), a lower thread pressing clamp (28), an upper blade (29), a lower blade (30) and a cutting cylinder (51); the cutting cylinder (51) is installed on the machine body (1), the upper thread pressing clamp (27) and the upper blade (29) are respectively fixedly connected to the push rod of the cutting cylinder (51), the lower blade (30) and the lower thread pressing clamp (28) are respectively connected to the connecting rod provided on the cutting cylinder (51), and the connecting rod on the cutting cylinder 51 is provided with a limiting device, which stops moving when reaching a certain position. After the suture is fixed in length, the upper thread pressing clamp 27 and the lower thread pressing clamp 28 press the suture tightly, and then the upper blade 29 and the lower blade 30 are tightened to cut the suture.

[0054] Preferably, rubber strips are provided on the surfaces of the upper thread pressing clamp 27 and the lower thread pressing clamp 28 to avoid damage to the sutures when the sutures are pressed.

[0055] Preferably, the upper blade 29 and the lower blade 30 can be flexibly replaced after the blade edges become blunt, thereby improving cutting efficiency.

[0056] Preferably, after the thread cutting is completed, the thread pressing rod 18 , the upper thread pressing clamp 27 and the lower thread pressing clamp 28 retreat to their original positions, and the nozzle 31 provided on the fuselage 1 blows the thread onto the thread setting box 2 .

[0057] Preferably, Figure 1 、 2 As shown, a thread winder is provided on the fuselage 1 above the thread pressing platform 15, and the thread winder includes a thread winder rod 32 and a thread winder cylinder 52. The thread winder rod 32 can move up and down through the thread winder cylinder 52. After the thread pressing rod 18 retreats to its original position, the wire drum 6 starts to take up the thread, and the thread pay-off rod 10 starts to retreat. The thread winder rod 32 moves downward to wind the suture between the thread pressing platform 15 and the work-shaped platform 16, and then the thread pressing platform 15 presses the work-shaped platform 16. The next round of automatic winding and cutting is performed according to the number of cutting times set by the control panel 3.

[0058] Preferably, when the medical suture automatic winding and cutting device is in continuous operation, only manual threading is required for the first time, and subsequent operations will be automatically executed after the control panel 3 confirms the start.

[0059] Preferably, after the equipment stops running, the forward and reverse rotation of the wire drum motor 34, the guide rail motor 22, the wire pay-off motor 9, and the fixed-length motor 25 can be controlled through the control panel 3.

[0060] Preferably, after the equipment stops running, the nozzle 31 can blow out gas through the control panel 3 to lightly remove dust from the equipment.

[0061] Preferably, the suture box 2 can be drawn out and replaced after collecting the suture.

[0062] The automatic winding and cutting equipment for medical sutures is equipped with an electrical control box. A chassis is provided at the lower part of the fuselage 1. The electrical control box is arranged inside the chassis. The electrical control box is equipped with an electrical control switch, AC contactor, relay, PLC programmable controller, control circuit board, motor controller, air source processor, solenoid valve, etc.

Claims

1. A medical suture automatic winding and cutting device, characterized in that: It comprises a machine body (1), a wire drum device, a winding device, a sewing thread length fixing device, a thread pressing device, a cutting device, a thread setting box (2) and a control panel (3); A wire reel device is provided on one side of the machine body (1), a wire winding device is provided on one side of the wire reel device, a wire pay-off mechanism is provided on the wire pay-off platform (8) of the wire winding device for paying out medical sutures; a suture length-fixing device is provided on the other side of the machine body for fixing the length of medical sutures; a wire pressing device is provided next to the suture length-fixing device, and a cutting device is provided on the middle side of the chain (26) of the suture length-fixing device for cutting medical sutures; the wire box is placed on the platform (1-1) of the machine body, and after the sutures are cut, they are blown into the wire box by a nozzle provided on the machine body; a control panel (3) is provided at the front of the machine body (1); The wire reel device comprises a wire reel motor (34), a wire reel motor rear bracket (33), a wire reel motor front bracket (35), a wire reel shaft column bearing (36), a wire reel bracket (37), a wire reel shaft column (7), a wire reel (6), a spring (5) and a wire reel locking nut (4); the wire reel motor (34) is mounted on the wire reel motor front bracket (35) and the wire reel motor rear bracket (33); the wire reel motor front bracket (35), the wire reel motor rear bracket (33) and the wire reel bracket (37) are mounted on the table of the machine body (1); the wire reel shaft column (7) is fixedly connected to the output shaft of the wire reel motor (34); the wire reel (6) is mounted on the wire reel shaft column (7); the wire reel locking nut (4) is rotated to compress the spring (5), thereby fixing the wire reel (6); The winding device comprises a pay-off platform (8), a pay-off motor (9), a pay-off main gear (11), a pay-off sub-gear (12), a pay-off rod (10), a guide rail motor (22), a pay-off guide rail (23) and a threaded rod (24); the guide rail motor (22) is mounted on the platform (1-1), the threaded rod (24) is connected to the guide rail motor (22), the two pay-off guide rails (23) are symmetrically parallel to both sides of the threaded rod (24), and are fixedly mounted on the platform (1-1), the pay-off platform (8) is provided with five columns, the middle main column (39) is provided with a threaded hole for use with the threaded rod (24), and the four The secondary column (40) is provided with a through hole to slide with the pay-off guide rail (23), thereby the pay-off platform (8) moves axially under the action of the guide rail motor (22); the pay-off motor (9) and the pay-off rod (10) are both installed on the pay-off platform (8), the shaft of the pay-off motor (9) is provided with a pay-off main gear (11), the rotating shaft (13) of the pay-off rod (10) is provided with a pay-off sub-gear (12), the pay-off main gear (11) is meshed with the pay-off sub-gear (12), the rotating shaft (13) is provided with a middle hole for the suture to pass through, and the pay-off rod (10) is provided with a plurality of thread holes (14) to guide the suture; The suture length-fixing device comprises a fixed-length motor (25), a fixed-length main gear (41), a chain (26), a fixed-length left gear (42), a fixed-length right gear (43), a chain left bracket (44), a chain right bracket (45), a left line wheel (21), a right line wheel (20), a left line wheel plate (46), a right line wheel plate (47), a fixed-length slider (48), an upper line wheel guide rail (49) and a lower line wheel guide rail (50); the left line wheel (21) and the right line wheel (20) are respectively screwed. The nails are fixed on the left line wheel plate (46) and the right line wheel plate (47), and the boss below the left line wheel plate (46) is provided with a circular groove to cooperate with the lower line wheel guide rail (50) for smooth sliding. After the left line wheel plate (46) is placed on the lower line wheel guide rail (50), the fixed-length slider (48) is installed above the left line wheel plate, and the circular groove provided thereon cooperates with the upper line wheel guide rail (49) for smooth sliding and the fixed-length slider (48) is fixed on the left line wheel plate (46) by the pin.

2. The automatic winding and cutting device for medical sutures according to claim 1, characterized in that: The fixed-length slider (48) is provided with a rectangular long block embedded in the gap of the chain (26), so that the chain (26) drives the left thread wheel (21) to move, and the right thread wheel plate (47) has the same structure as the left thread wheel plate (46), but the fixed-length slider (48) of the right thread wheel plate (47) is provided below, thereby the left thread wheel (21) and the right thread wheel (20) will move outward or inward at the same time to achieve the purpose of fixing the length of the suture; The two ends of the chain (26) are respectively engaged with the fixed-length left gear (42) and the fixed-length right gear (43), and the fixed-length left gear (42) and the fixed-length right gear (43) are respectively fixed to the chain left bracket (44) and the chain right bracket (45) through bearings; A fixed-length main gear (41) is provided in the middle of the chain (26). The fixed-length main gear (41) is meshed with the chain (26) and fixed on the output shaft of the fixed-length motor (25). The fixed-length motor (25) is mounted on the platform (1-1).

3. The automatic winding and cutting device for medical sutures according to claim 1, characterized in that: The wire pressing device comprises a wire pressing rod (18), a wire pressing cylinder (17), and a wire pressing cylinder bracket (19). The wire pressing rod (18) is fixedly connected to a push rod of the wire pressing cylinder (17). When the wire pressing cylinder (17) operates, a wire pressing platform (15) provided on the wire pressing rod (18) presses or releases the work-shaped platform (16) on the wire wheel. The wire pressing cylinder (17) is mounted on the wire pressing cylinder bracket (19), and the wire pressing cylinder bracket (19) is mounted on the platform (1-1).

4. The automatic winding and cutting device for medical sutures according to claim 1, characterized in that: The cutting device comprises an upper thread pressing clamp (27), a lower thread pressing clamp (28), an upper blade (29), a lower blade (30) and a cutting cylinder (51); the cutting cylinder (51) is mounted on the machine body (1); the upper thread pressing clamp (27) and the upper blade (29) are respectively fixedly connected to the push rod of the cutting cylinder (51); the lower blade (30) and the lower thread pressing clamp (28) are respectively connected to the connecting rod provided on the cutting cylinder (51); the connecting rod on the cutting cylinder (51) is provided with a limiting device, which stops moving when reaching a certain position; after the suture is fixed in length, the upper thread pressing clamp (27) and the lower thread pressing clamp (28) press the suture tightly, and then the upper blade (29) and the lower blade (30) are tightened to cut the suture.

5. The automatic winding and cutting device for medical sutures according to claim 1, characterized in that: A line box is provided directly below the left line wheel (21) and the right line wheel (20).

6. The automatic winding and cutting device for medical sutures according to claim 1, characterized in that: The front part of the machine body (1) is provided with a control panel, which is connected to the electrical control box, and the operating parameters of the medical suture automatic winding and cutting device are set through the control panel.

7. The automatic winding and cutting device for medical suture according to claim 3, characterized in that: A thread winder is provided on the body (1) above the thread pressing platform (15), and the thread winder comprises a thread winder rod (32) and a thread winder cylinder (52). The thread winder rod (32) can move up and down through the thread winder cylinder (52). After the thread pressing rod (18) retreats to its original position, the thread drum (6) starts to wind up the thread, and the thread pay-off rod (10) starts to retreat. The thread winder rod (32) moves downward to wind the thread between the thread pressing platform (15) and the shaping platform (16). After that, the thread pressing platform (15) presses the shaping platform (16) and performs the next round of automatic winding and cutting according to the number of cutting times set by the control panel (3).

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