CN117324520A

CN117324520A - Automatic production equipment for medical suture needle

Info

Publication number: CN117324520A
Application number: CN202311490126.7A
Authority: CN
Inventors: 包昌福; 潘国梁
Original assignee: Hangzhou Aipu Medical Instrument Co ltd
Current assignee: Hangzhou Aipu Medical Instrument Co ltd
Priority date: 2023-11-10
Filing date: 2023-11-10
Publication date: 2024-01-02

Abstract

The invention belongs to the field of medical suture needle production, and particularly relates to medical suture needle automatic production equipment, which comprises a platform, a lower die mechanism, a stamping die mechanism, a hydraulic cylinder A, a polishing mechanism A, a transmission mechanism A, a guide mechanism B, a transmission mechanism B, a polishing mechanism B and a polishing mechanism C, wherein the stamping die mechanism and the lower die mechanism for stamping a steel wire into a suture needle with a flat needle tail and a needle point are arranged on the platform, the stamping die mechanism is driven by the hydraulic cylinder A to move up and down, and the lower die mechanism is fixed on the platform. Compared with the existing method for drilling holes by using a tiny drill bit, the method for forming the threading holes of the suture needle has higher efficiency, does not have the defects that the drill bit is difficult to align and drill holes and is easy to break or the punch is easy to break, and is suitable for batch operation.

Description

Automatic production equipment for medical suture needle

Technical Field

The invention belongs to the field of medical suture needle production, and particularly relates to automatic production equipment for medical suture needles.

Background

Medical suture needles are medical tools commonly used in the medical field, and are commonly used for suturing wounds after surgery.

The conventional processing of suture needles includes the steps of blanking, sharpening the two ends, stamping the middle part, drilling by a drill, stamping into two sections, polishing and the like.

The suture needle has more processing procedures and longer processing period, wherein the drill bit drilling procedure is to drill the threading hole at the middle part punching part by utilizing the tiny drill bit, the drill bit is extremely easy to break due to the extremely thin drill bit, and the drill bit is difficult to align with the drilling hole due to the thinner suture needle, so that the process takes longer time and has lower efficiency.

If the traditional punching head is adopted to punch and form the threading hole of the suture needle, the punch is tiny and is easy to break due to smaller punching, the suture needle is not suitable for batch operation, and the punching efficiency is lower.

The invention designs automatic production equipment for medical suture needles, which solves the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses automatic production equipment for medical suture needles, which is realized by adopting the following technical scheme.

The automatic production equipment for the medical suture needle comprises a platform, a lower die mechanism, a stamping die mechanism, a hydraulic cylinder A, a polishing mechanism A, a transmission mechanism A, a guide mechanism B, a transmission mechanism B, a polishing mechanism B and a polishing mechanism C, wherein the stamping die mechanism and the lower die mechanism for stamping a steel wire into the suture needle with a flat needle tail and a needle point are arranged on the platform, the stamping die mechanism is driven by the hydraulic cylinder A to move up and down, and the lower die mechanism is fixed on the platform; the stamping die mechanism and the lower die mechanism are provided with a structure for removing stamping burrs of the needle tail and the needle tip of the formed suture needle and a structure for stamping the needle tail of the suture needle without closing the threading hole; the platform is provided with a polishing mechanism A for polishing threading holes on a sewing needle clamped by a punching die mechanism and a lower die mechanism, a transmission mechanism A for transmitting steel wires to the punching die mechanism and the lower die mechanism, a guide mechanism A for guiding the steel wires from the transmission mechanism A to a position between the punching die mechanism and the lower die mechanism, a polishing mechanism C for polishing the needle tip of the sewing needle, a transmission mechanism B for transmitting the sewing needle to the polishing mechanism C, a guide mechanism B for guiding the sewing needle between the punching die mechanism and the lower die mechanism to the transmission mechanism B and a polishing mechanism B for polishing the needle tail of the sewing needle positioned on the transmission mechanism B.

As a further improvement of the technology, the upper die mechanism or the lower die mechanism comprises a guide sleeve, a die A, a spring A, a die B, a spring B, a die F, a spring C, a die D, a spring D, a die E, a spring E, a clamping plate and a spring F, wherein the die E which is arranged at the lower end of a hydraulic cylinder A or in the guide sleeve fixed in a groove above a platform vertically slides with a needle point of a punch forming suture needle on a steel wire, the die B which is used for punch forming a flat needle tail of the suture needle on the steel wire, the die A and the die D which are used for cutting burrs on the formed flat needle tail and the needle point, and the die F which is used for punching a non-closed threading hole on the punch forming flat needle tail; a spring A for resetting the movement of the die A, a spring B for resetting the movement of the die B, a spring D for resetting the movement of the die D, a spring E for resetting the movement of the die E and a spring C for resetting the movement of the die F are arranged in the guide sleeve; the guide sleeve is provided with a structure for locking the stamping die A, the stamping die B, the stamping die D, the stamping die E and the stamping die F; two clamping plates which compress and fix the two parts which are formed by stamping on the steel wire are vertically slid in two sliding grooves at the lower end of the guide sleeve, and a spring F for resetting the clamping plates is arranged; the side wall of the guide sleeve is provided with a structure for driving the punch die B and the punch die F to avoid when the forming threading hole is polished through the polishing mechanism A under the condition that two parts of the steel wire which are formed by punching are pressed and fixed by the clamping plates.

As a further improvement of the technology, the stamping die F vertically slides in a sliding groove B on the corresponding stamping die B, the stamping die F is connected with a stamping die C through a connecting block, and the connecting block and the stamping die C are in nested fit with the stamping die B; the sliding grooves A on the side wall of the guide sleeve, which are in one-to-one correspondence with the stamping die A, the stamping die B, the stamping die C, the stamping die D, the stamping die E and the stamping die F, respectively horizontally slide a locking rod A which is matched with a locking groove on the stamping die A and is driven by an electric push rod A, a locking rod B which is matched with a locking groove on the stamping die B and is driven by an electric push rod B, a locking rod C which is matched with a locking groove on the stamping die C and is driven by an electric push rod C, a locking rod D which is matched with a locking groove on the stamping die D and is driven by an electric push rod D, and a locking rod E which is matched with a locking groove on the stamping die E and is driven by an electric push rod E.

The side wall of the guide sleeve of the upper die mechanism or the lower die mechanism vertically slides with a sliding seat A, a screw rod A which is in threaded fit with the sliding seat A and is driven to rotate by a motor A is arranged on the sliding seat A, an electric push rod F which stretches horizontally is arranged on the sliding seat A, and a lock rod F arranged at the tail end of the electric push rod F is matched with a clamping groove A on a corresponding die B and a clamping groove B on a corresponding die C.

As a further improvement of the technology, the polishing mechanism A comprises a belt wheel A, a polishing rope, steel wool, a motor B, a sliding seat B, a screw rod B, a motor C, a sliding seat C, a screw rod C, a motor D, guide seats, a chain wheel and a chain, wherein two sliding seats C are horizontally moved in two guide seats arranged on a platform along the direction perpendicular to the movement of the steel wire; each guide seat is provided with a screw rod C in threaded fit with the corresponding sliding seat C; the two screws C are respectively provided with a chain wheel, and the two chain wheels are connected through chain transmission; two sliding seats B horizontally slide along the direction parallel to the movement of the steel wire in the two sliding seats C; each sliding seat C is provided with a screw B in threaded fit with the corresponding sliding seat B, and the screw B is in transmission connection with an output shaft of a motor C on the sliding seat C; the two sliding seats B are synchronously connected through a bracket B, a bracket A is arranged on the bracket B, and two belt wheels A driven by a motor B are arranged on the bracket A; and polishing ropes are arranged on the two belt wheels A, and soft steel wool is densely distributed on the polishing ropes.

As a further improvement of the technology, the transmission mechanism A comprises a pinch roller A, a gear A and a motor E, wherein two pinch rollers A for clamping steel wires are arranged on a bracket C arranged on a platform; the wheel shafts of the two pinch rollers A are respectively provided with a gear A, the two gears A are meshed with each other, and the wheel shafts of the pinch rollers A are in transmission connection with the output shaft of the motor E on the bracket C.

As a further improvement of the technology, the guiding mechanism A or the guiding mechanism B comprises a bracket D and a pinch roller B, wherein two pinch rollers B for clamping the steel wire are arranged on the bracket D arranged on the platform.

As a further improvement of the technology, the conveying mechanism B comprises a bracket E, conveying rollers, a conveying belt and a motor F, wherein two conveying rollers driven by the motor F are arranged on the bracket E arranged on the platform, the conveying belt running along the movement direction of the steel wire is arranged on the two conveying rollers, and a groove for accommodating the suture needle is formed in the conveying belt.

As a further improvement of the technology, the polishing mechanism B comprises a compression roller, a cone part, a gear B, a belt wheel B, a synchronous belt, a belt wheel C, a motor G and a hydraulic cylinder B, wherein the vertical telescopic hydraulic cylinder B is arranged on a portal B arranged on a platform, a bracket F is arranged at the lower end of the hydraulic cylinder B, and two compression rollers for pressing steel wires in grooves on a transmission belt are arranged on the bracket F; the roller shafts where the two press rollers are positioned are provided with gears B, and the two gears B are meshed with each other; a belt wheel B is arranged on a roll shaft where one press roll is positioned, and the belt wheel B is in transmission connection with a belt wheel C on an output shaft of a motor G on a bracket F through a synchronous belt; one end of one compression roller is provided with a cone part for polishing the needle tail of the suture needle.

As a further improvement of the technology, the polishing mechanism C comprises an electric push rod G and a polishing sleeve, wherein the electric push rod G stretching along the movement direction of the steel wire is arranged on the platform, and the polishing sleeve for polishing the needle point of the suture needle is arranged at the tail end of the electric push rod G.

As a further improvement of the technology, the processing flow is as follows: 1. conveying the steel wire to a die B and a die E of a lower die mechanism through a conveying mechanism A and a guiding mechanism A; 2. starting a hydraulic cylinder A to drive an upper die mechanism to punch steel wires, and clamping and fixing two parts formed by punching on the steel wires by two clamping plates of the upper die mechanism and two clamping plates of a lower die mechanism; 3. the electric push rod B of the upper die mechanism is started to drive the lock rod B to unlock the die B, the electric push rod D of the upper die mechanism is started to drive the lock rod D to unlock the die D, the electric push rod E of the upper die mechanism is started to drive the lock rod E to unlock the die E, the electric push rod A of the upper die mechanism is started to drive the lock rod A to unlock the die A, and the electric push rod C of the lower die mechanism is started to drive the lock rod C to unlock the die F; 4. starting a hydraulic cylinder A to drive a guide sleeve of the upper die mechanism to continuously move downwards, driving a stamping die F to stamp a flat needle tail which is stamped and formed on a steel wire to form a threading hole in an unsealed mode through a lock rod C, and simultaneously, shrinking clamping plates in the upper die mechanism and the lower die mechanism to a certain extent; 5. starting a hydraulic cylinder A to drive a guide sleeve and a die F of an upper die mechanism to reset upwards relative to a die A, a die B, a die D and a die E, and simultaneously resetting the die F in a lower die mechanism relative to the corresponding guide sleeve under the action of a corresponding spring C; 6. the electric push rod B of the upper die mechanism is started to drive the lock rod B to lock the die B, the electric push rod E of the upper die mechanism is started to drive the lock rod E to lock the die E, the electric push rod C of the lower die mechanism is started to drive the lock rod C to lock the die F, and the electric push rod B and the electric push rod E in the lower die mechanism are started to unlock the die B and the die E in the lower die mechanism; 7. starting a hydraulic cylinder A to drive a guide sleeve, a die A and a die D of the upper die mechanism to synchronously move downwards so as to punch and shear burrs on the punch-formed needle tail and the needle head; 8. the hydraulic cylinder A is started to drive the corresponding guide sleeve, the stamping die A and the stamping die D to reset relative to the stamping die B, the stamping die C and the stamping die E, the electric push rods F in the upper die mechanism and the lower die mechanism are started, the two electric push rods F respectively drive the corresponding lock rods F to be inserted into the clamping grooves A and B on the corresponding stamping die B and the corresponding stamping die C, the two motors A in the upper die mechanism and the lower die mechanism are started, and the two motors A respectively drive the corresponding lock rods F to drive the corresponding stamping die B, the stamping die C and the stamping die F to be separated from the punch-formed needle tails on the steel wires; 9. the motor D is started to drive the polishing rope to enter a threading hole formed in the needle tail in a punching mode, the motor C and the motor B are started, the motor C drives the polishing rope to horizontally move in the threading hole along the length of the threading hole, and meanwhile, the motor B drives the polishing rope to reciprocate up and down to polish the inner wall of the threading hole; 10. starting the hydraulic cylinder A to drive the upper die mechanism to move upwards, reset and separate from the steel wire, and starting the transmission mechanism A to drive the steel wire to move continuously, so that the suture needle formed at the forefront end reaches the transmission belt of the transmission mechanism B under the guidance of the guide mechanism B; 11. the hydraulic cylinder B is started to drive the support F in the polishing mechanism B to drive the two pressing rollers to press the sewing needle in the groove on the conveying belt, the motor G in the polishing mechanism B is started to drive the two pressing rollers to drive the sewing needle to rotate, the cone part on the pressing rollers polishes the needle tail of the sewing needle, and meanwhile the electric push rod G in the polishing mechanism C is started to drive the polishing sleeve to be nested on the needle point of the sewing needle to polish the needle point.

The hydraulic cylinder A is arranged on a bracket A on the platform and is connected with a guide sleeve in the upper die mechanism through n seats.

Compared with the traditional medical suture needle production equipment, the invention performs punch forming on the needle head of the suture needle and the threading hole at the tail of the suture needle by matching the punch die mechanism and the lower die mechanism, has higher efficiency in forming the threading hole of the suture needle compared with the prior art by drilling by utilizing a tiny drill bit, has no defects of difficult alignment and drilling of the drill bit and easy breakage of a punch head, and is suitable for batch operation.

The invention has simple structure and better use effect.

Drawings

Fig. 1 is a schematic overall view of the present invention.

Fig. 2 is a schematic cross-sectional view of two integers of the present invention.

Fig. 3 is a schematic view of the die mechanism or lower die mechanism from two perspectives.

Fig. 4 is a schematic cross-sectional view of the die mechanism or lower die mechanism with the guide sleeve mated with die B at two viewing angles.

Fig. 5 is a schematic cross-sectional view of the cooperation of the guide sleeve and the die C in the die mechanism or the lower die mechanism.

Fig. 6 is a schematic cross-sectional view of the die mechanism or lower die mechanism with the guide sleeve mated with the die D.

Fig. 7 is a schematic cross-sectional view of the cooperation of the guide sleeve and the die E in the die mechanism or the lower die mechanism.

Fig. 8 is a schematic cross-sectional view of the die mechanism or lower die mechanism with the guide sleeve mated with die a at two angles.

Fig. 9 is a schematic view of a guide sleeve in a die mechanism or lower die mechanism.

Fig. 10 is a schematic sectional view of the structure of the conveying mechanism a and the guiding mechanism a or the guiding mechanism B.

Fig. 11 is a schematic cross-sectional view of the cooperation of the polishing mechanism a with the die mechanism and the lower die mechanism.

Fig. 12 is a schematic cross-sectional view of the horizontal driving structure of the grinding mechanism a along the direction perpendicular to the movement of the steel wire.

Fig. 13 is a schematic cross-sectional view of a horizontal driving structure of the grinding mechanism a in a direction parallel to the movement of the wire.

Fig. 14 is a schematic view of the grinding mechanism B from two perspectives.

FIG. 15 is a schematic cross-sectional view of the polishing mechanism B, the transporting mechanism B and the suture needle from two different angles.

Fig. 16 is a schematic view of a state in which the steel wire is pressed by the die mechanism and the lower die mechanism.

FIG. 17 is a schematic view of a molded suture needle.

Fig. 18 is a schematic view of die C from two perspectives.

Reference numerals in the figures: 1. a platform; 2. a lower die mechanism; 3. a die mechanism; 4. guide sleeve; 5. a chute A; 6. a die A; 7. a spring A; 8. a lock rod A; 9. an electric push rod A; 10. a die B; 11. a chute B; 12. a spring B; 13. a lock rod B; 14. an electric push rod B; 15. a die C; 16. a connecting block; 17. a die F; 18. a spring C; 19. a lock lever C; 20. an electric push rod C; 21. a die D; 22. a spring D; 23. a lock lever D; 24. an electric push rod D; 25. a die E; 26. a spring E; 27. a lock lever E; 28. an electric push rod E; 29. a clamping plate; 30. a motor A; 31. a screw A; 32. a sliding seat A; 33. an electric push rod F; 34. a lock lever F; 35. n seats; 36. a hydraulic cylinder A; 37. a portal A; 38. a polishing mechanism A; 39. a bracket A; 40. a belt wheel A; 41. polishing ropes; 42. steel wool; 43. a motor B; 44. a bracket B; 45. a sliding seat B; 46. a screw B; 47. a motor C; 48. a slide C; 49. a screw C; 50. a motor D; 51. a guide seat; 52. a sprocket; 53. a chain; 54. a clamping groove A; 55. a clamping groove B; 56. a transmission mechanism A; 57. a bracket C; 58. pinch roller A; 59. a gear A; 60. a motor E; 61. a guide mechanism A; 62. a bracket D; 63. pinch roller B; 64. a guide mechanism B; 65. a transmission mechanism B; 66. a bracket E; 67. a conveying roller; 68. a transmission belt; 69. a groove; 70. a motor F; 71. a portal B; 72. a hydraulic cylinder B; 73. a polishing mechanism B; 74. a bracket F; 75. a press roller; 76. a cone portion; 77. a gear B; 78. a belt wheel B; 79. a synchronous belt; 80. a belt wheel C; 81. a motor G; 82. a suture needle; 83. a needle tail; 84. a threading hole; 85. a needle; 86. raw edges; 87. a polishing mechanism C; 88. an electric push rod G; 89. polishing the sleeve; 90. a steel wire; 91. and a spring F.

Detailed Description

The drawings are schematic representations of the practice of the invention to facilitate understanding of the principles of operation of the structure. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1 and 2, the device comprises a platform 1, a lower die mechanism 2, a die mechanism 3, a hydraulic cylinder A36, a polishing mechanism A38, a transmission mechanism A56, a guide mechanism A61, a guide mechanism B64, a transmission mechanism B65, a polishing mechanism B73 and a polishing mechanism C87, wherein the die mechanism 3 and the lower die mechanism 2 for punching a steel wire 90 into a suture needle 82 with a flat needle tail 83 and a needle point are arranged on the platform 1, the die mechanism 3 is driven by the hydraulic cylinder A36 to move up and down, and the lower die mechanism 2 is fixed on the platform 1; as shown in fig. 3 and 16, the punch mechanism 3 and the lower die mechanism 2 have a structure for removing the punch burr 86 of the needle tail 83 and the needle tip of the molding needle 82 and a structure for punching the needle tail 83 of the needle 82 without closing the threading hole 84; as shown in fig. 1, 12 and 13, the table 1 is provided with a polishing mechanism a38 for polishing the threading hole 84 on the sewing needle held by the punch mechanism 3 and the lower die mechanism 2, a conveying mechanism a56 for conveying the wire 90 in the direction of the punch mechanism 3 and the lower die mechanism 2, a guide mechanism a61 for guiding the wire 90 from the conveying mechanism a56 between the punch mechanism and the lower die mechanism 2, a polishing mechanism C87 for polishing the tip of the sewing needle 82, a conveying mechanism B65 for conveying the sewing needle 82 to the polishing mechanism C87, a guide mechanism B64 for guiding the sewing needle 82 between the punch mechanism 3 and the lower die mechanism 2 to the conveying mechanism B65, and a polishing mechanism B73 for polishing the needle tail 83 of the sewing needle 82 positioned on the conveying mechanism B65.

As shown in fig. 3, the upper die mechanism or the lower die mechanism 2 comprises a guide sleeve 4, a die A6, a spring A7, a die B10, a spring B12, a die F17, a spring C18, a die D21, a spring D22, a die E25, a spring E26, a clamping plate 29 and a spring F91, wherein as shown in fig. 2 and 3, a die E25 for punching the needle tip of the stitching needle 82 on the steel wire 90, a die B10 for punching the flat needle tail 83 on the steel wire 90, a die A6 and a die D21 for cutting the flat needle tail 83 and the burr 86 on the needle tip, and a die F17 for punching the non-closed threading hole 84 on the flat needle tail 83 are vertically slid in the guide sleeve 4 mounted at the lower end of the hydraulic cylinder a36 or fixed in a groove above the platform 1; as shown in fig. 4, 5, 6, 7 and 8, a spring A7 for returning the movement of the die A6, a spring B12 for returning the movement of the die B10, a spring D22 for returning the movement of the die D21, a spring E26 for returning the movement of the die E25 and a spring C18 for returning the movement of the die F17 are installed in the guide sleeve 4; the guide sleeve 4 is provided with a structure for locking the punch A6, the punch B10, the punch D21, the punch E25 and the punch F17; as shown in fig. 5, two clamping plates 29 for pressing and fixing two parts which are formed by punching on the steel wire 90 are vertically slid in two sliding grooves at the lower end of the guide sleeve 4, and a spring F91 for resetting the clamping plates 29 is arranged; as shown in fig. 3, 11 and 12, the side wall of the guide sleeve 4 has a structure for driving the die B10 and the die F17 to be retracted when the forming threading hole 84 is polished by the polishing mechanism a38 under the condition that two parts which are formed by punching on the steel wire 90 are pressed and fixed by the clamping plate 29.

As shown in fig. 7 and 18, the dies F17 vertically slide in the sliding grooves B11 on the corresponding dies B10, the dies F17 are connected with the dies C15 through the connecting blocks 16, and the connecting blocks 16 and the dies C15 are in nested fit with the dies B10; as shown in fig. 4, 5, 6, 7, 8 and 9, sliding grooves A5 on the side wall of the guide sleeve 4, which correspond to the die A6, the die B10, the die C15, the die D21, the die E25 and the die F17 one by one, are respectively horizontally slid with a lock rod A8 engaged with a lock groove on the die A6 and driven by the electric push rod A9, a lock rod B13 engaged with a lock groove on the die B10 and driven by the electric push rod B14, a lock rod C19 engaged with a lock groove on the die C15 and driven by the electric push rod C20, a lock rod D23 engaged with a lock groove on the die D21 and driven by the electric push rod D24, and a lock rod E27 engaged with a lock groove on the die E25 and driven by the electric push rod E28.

As shown in fig. 3, 11 and 18, a sliding seat a32 is vertically slid on the side wall of a guide sleeve 4 of the upper die mechanism or the lower die mechanism 2, a screw rod a31 which is in threaded fit with the sliding seat a32 and is driven to rotate by a motor a30 is installed on the sliding seat a32, a horizontally telescopic electric push rod F33 is installed on the sliding seat a32, and a lock rod F34 installed at the tail end of the electric push rod F33 is matched with a clamping groove a54 on a corresponding die B10 and a clamping groove B55 on a corresponding die C15.

As shown in fig. 11, 12 and 13, the polishing mechanism a38 includes a pulley a40, a polishing rope 41, a steel wool 42, a motor B43, a slide B45, a screw B46, a motor C47, a slide C48, a screw C49, a motor D50, a guide 51, a sprocket 52 and a chain 53, wherein, as shown in fig. 11, 12 and 13, two slides C48 are horizontally moved in the two guide 51 installed on the platform 1 in a direction perpendicular to the movement of the steel wire 90; each guide seat 51 is provided with a screw rod C49 in threaded fit with the corresponding sliding seat C48; the two screws C49 are respectively provided with a chain wheel 52, and the two chain wheels 52 are in transmission connection through a chain 53; two sliding seats B45 horizontally slide along the direction parallel to the movement of the steel wire 90 in the two sliding seats C48; a screw B46 in threaded fit with the corresponding slide B45 is arranged on each slide C48, and the screw B46 is in transmission connection with an output shaft of a motor C47 on the slide C48; the two sliding seats B45 are synchronously connected through a bracket B44, a bracket A39 is arranged on the bracket B44, and two belt wheels A40 driven by a motor B43 are arranged on the bracket A39; the two belt wheels A40 are provided with polishing ropes 41, and soft steel wool 42 is densely distributed on the polishing ropes 41.

As shown in fig. 10, the transmission mechanism a56 includes a pinch roller a58, a gear a59, and a motor E60, wherein, as shown in fig. 10, two pinch rollers a58 that clamp the steel wire 90 are mounted on a bracket C57 mounted on the platform 1; the wheel shafts of the two pinch wheels A58 are provided with gears A59, the two gears A59 are meshed with each other, and the wheel shafts of the pinch wheels A58 are in transmission connection with the output shaft of a motor E60 on a bracket C57.

As shown in fig. 10, the guiding mechanism a61 or the guiding mechanism B64 includes a bracket D62 and a pinch roller B63, wherein two pinch rollers B63 that clamp the steel wire 90 are mounted on the bracket D62 mounted on the platform 1.

As shown in fig. 15, the conveying mechanism B65 includes a bracket E66, conveying rollers 67, a conveying belt 68, and a motor F70, wherein, as shown in fig. 15, two conveying rollers 67 driven by the motor F70 are mounted on the bracket E66 mounted on the platform 1, the conveying belt 68 running along the moving direction of the steel wire 90 is mounted on the two conveying rollers 67, and the conveying belt 68 has a groove 69 for accommodating the suture needle 82.

As shown in fig. 14, the polishing mechanism B73 includes a press roller 75, a cone 76, a gear B77, a belt pulley B78, a synchronous belt 79, a belt pulley C80, a motor G81, and a hydraulic cylinder B72, wherein, as shown in fig. 14, a vertical telescopic hydraulic cylinder B72 is mounted on a gantry B71 mounted on the platform 1, a bracket F74 is mounted at the lower end of the hydraulic cylinder B72, and two press rollers 75 for pressing the steel wire 90 against the groove 69 on the conveyor belt 68 are mounted on the bracket F74; the roller shafts on which the two pressing rollers 75 are arranged are provided with gears B77, and the two gears B77 are meshed with each other; a roller shaft where one press roller 75 is arranged is provided with a belt wheel B78, and the belt wheel B78 is in transmission connection with a belt wheel C80 on an output shaft of a motor G81 on a bracket F74 through a synchronous belt 79; as shown in fig. 15 and 17, one end of one of the pressing rollers 75 has a tapered portion 76 to polish the tail 83 of the sewing needle 82.

As shown in fig. 2, the polishing mechanism C87 includes an electric push rod G88 and a polishing sleeve 89, wherein as shown in fig. 2 and 17, the electric push rod G88 that stretches along the moving direction of the steel wire 90 is mounted on the platform 1, and the polishing sleeve 89 that polishes the tip of the suture needle 82 is mounted at the end of the electric push rod G88.

As shown in fig. 1 and 2, the processing flow is as follows: 1. the wire 90 is conveyed to the dies B10 and E25 of the lower die mechanism 2 by the conveying mechanism a56 and the guide mechanism a 61; 2. starting a hydraulic cylinder A36 to drive an upper die mechanism to punch the steel wire 90, wherein two clamping plates 29 of the upper die mechanism and two clamping plates 29 of a lower die mechanism 2 form clamping and fixing on two parts formed by punching on the steel wire 90; 3. the electric push rod B14 of the upper die mechanism is started to drive the lock rod B13 to unlock the die B10, the electric push rod D24 of the upper die mechanism is started to drive the lock rod D23 to unlock the die D21, the electric push rod E28 of the upper die mechanism is started to drive the lock rod E27 to unlock the die E25, the electric push rod A9 of the upper die mechanism is started to drive the lock rod A8 to unlock the die A6, and the electric push rod C20 of the lower die mechanism 2 is started to drive the lock rod C19 to unlock the die F17; 4. starting a hydraulic cylinder A36 to drive a guide sleeve 4 of the upper die mechanism to continuously move downwards, driving a stamping die F17 to stamp and form a flat needle tail 83 which is stamped and formed on a steel wire 90 without closing a threading hole 84 by a locking rod C19 by the guide sleeve 4, and simultaneously, contracting clamping plates 29 in the upper die mechanism and the lower die mechanism 2 to a certain extent; 5. starting a hydraulic cylinder A36 to drive a guide sleeve 4 and a die F17 of the upper die mechanism to reset upwards relative to a die A6, a die B10, a die D21 and a die E25, and simultaneously resetting the die F17 in the lower die mechanism 2 relative to the corresponding guide sleeve 4 under the action of a corresponding spring C18; 6. the electric push rod B14 of the upper die mechanism is started to drive the locking rod B13 to lock the die B10, the electric push rod E28 of the upper die mechanism is started to drive the locking rod E27 to lock the die E25, the electric push rod C20 of the lower die mechanism 2 is started to drive the locking rod C19 to lock the die F17, and the electric push rod B14 and the electric push rod E28 in the lower die mechanism 2 are started to unlock the die B10 and the die E25 in the lower die mechanism 2; 7. starting a hydraulic cylinder A36 to drive a guide sleeve 4, a stamping die A6 and a stamping die D21 of the upper die mechanism to synchronously move downwards so as to punch and shear burrs 86 on a punch-formed needle tail 83 and a needle head 85; 8. starting a hydraulic cylinder A36 to drive a corresponding guide sleeve 4, a corresponding stamping die A6 and a corresponding stamping die D21 to reset relative to a stamping die B10, a stamping die C15 and a stamping die E25, starting an electric push rod F33 in an upper die mechanism and a lower die mechanism 2, respectively driving a corresponding locking rod F34 to be inserted into a clamping groove A54 on a corresponding stamping die B10 and a clamping groove B55 on a corresponding stamping die C15 by the two electric push rods F33, starting two motors A30 in the upper die mechanism and the lower die mechanism 2, respectively driving a corresponding locking rod F34 to drive a corresponding stamping die B10, a corresponding stamping die C15 and a corresponding stamping die F17 to be separated from a stamped needle tail 83 on a steel wire 90 by the two motors A30; 9. starting a motor D50 to drive the polishing rope 41 to enter a threading hole 84 formed in a punch mode on a needle tail 83, starting a motor C47 and a motor B43, wherein the motor C47 drives the polishing rope 41 to horizontally move in the threading hole 84 along the length of the threading hole 84, and simultaneously, the motor B43 drives the polishing rope 41 to reciprocate up and down to polish the inner wall of the threading hole 84; 10. starting the hydraulic cylinder A36 to drive the upper die mechanism to move upwards, reset and separate from the steel wire 90, and starting the transmission mechanism A56 to drive the steel wire 90 to move continuously, so that the suture needle 82 formed at the forefront end reaches the transmission belt 68 of the transmission mechanism B65 under the guidance of the guide mechanism B64; 11. the hydraulic cylinder B72 is started to drive the bracket F74 in the polishing mechanism B73 to drive the two pressing rollers 75 to press the sewing needle 82 into the groove 69 on the conveying belt 68, the motor G81 in the polishing mechanism B73 is started to drive the two pressing rollers 75 to drive the sewing needle 82 to rotate, the cone 76 on the pressing rollers 75 polishes the needle tail 83 of the sewing needle 82, and meanwhile the electric push rod G88 in the polishing mechanism C87 is started to drive the polishing sleeve 89 to be nested on the needle tip of the sewing needle 82 to polish the needle tip.

The hydraulic cylinder A36 is arranged on a bracket A39 on the platform 1, and the hydraulic cylinder A36 is connected with the guide sleeve 4 in the upper die mechanism through the n seats 35.

The working flow of the invention is as follows: in the vertical state, the upper die mechanism is separated from the lower die mechanism 2 by a certain distance, and a distance is reserved between the polishing mechanism B73 and the transmission mechanism B65.

When the invention needs to be used for punch forming of the sewing needle 82 and polishing of the sewing needle on the steel wire 90, the starting motor E60 drives the transmission mechanism A56 to drive the steel wire 90 with the needle tip at one end polished to reach the stamping die B10 and the stamping die E25 of the lower die mechanism 2 through the guiding of the guiding mechanism A61, so that the needle tip part of the steel wire 90 passes through the guiding mechanism B64.

The hydraulic cylinder A36 is started to drive the upper die mechanism to punch the steel wire 90, and the two clamping plates 29 of the upper die mechanism and the two clamping plates 29 of the lower die mechanism 2 form clamping and fixing on the two punched parts of the steel wire 90 under the action of the corresponding springs F91.

The electric push rod B14 of the upper die starting mechanism drives the lock rod B13 to unlock the punch die B10, the electric push rod D24 of the upper die starting mechanism drives the lock rod D23 to unlock the punch die D21, the electric push rod E28 of the upper die starting mechanism drives the lock rod E27 to unlock the punch die E25, the electric push rod A9 of the upper die starting mechanism drives the lock rod A8 to unlock the punch die A6, and the electric push rod C20 of the lower die starting mechanism 2 drives the lock rod C19 to unlock the punch die F17.

The hydraulic cylinder A36 is started to drive the guide sleeve 4 of the upper die mechanism to move downwards continuously, the guide sleeve 4 drives the punch die F17 to punch the flat needle tail 83 which is punched and formed on the steel wire 90 through the lock rod C19, the threading holes 84 are not closed, and meanwhile, the clamping plates 29 in the upper die mechanism and the lower die mechanism 2 shrink to a certain extent, and the punch die F17 in the lower die mechanism 2 moves downwards.

The guide sleeve 4 and the die F17 of the upper die mechanism are driven by the starting hydraulic cylinder A36 to reset upwards relative to the die A6, the die B10, the die D21 and the die E25, and meanwhile, the die F17 in the lower die mechanism 2 resets relative to the corresponding guide sleeve 4 under the action of the corresponding spring C18. The electric push rod B14 of the upper die mechanism is started to drive the locking rod B13 to lock the die B10, the electric push rod E28 of the upper die mechanism is started to drive the locking rod E27 to lock the die E25, the electric push rod C20 of the lower die mechanism 2 is started to drive the locking rod C19 to lock the die F17, and the electric push rod B14 and the electric push rod E28 in the lower die mechanism 2 are started to unlock the die B10 and the die E25 in the lower die mechanism 2.

The guide sleeve 4, the die A6 and the die D21 of the upper die mechanism are driven by the starting hydraulic cylinder A36 to synchronously move downwards to punch and shear burrs 86 on the punch-formed needle tail 83 and the needle head 85, and meanwhile, the die A6 and the die D21 in the lower die mechanism 2 are pushed by the die A6 and the die D21 in the upper die mechanism to move downwards to avoid.

After the punching and shearing of burrs 86 on the needle tail 83 and the needle head 85 are completed, the hydraulic cylinder A36 is started to drive the corresponding guide sleeve 4, the corresponding stamping die A6 and the corresponding stamping die D21 to reset relative to the stamping die B10, the stamping die C15 and the stamping die E25, the electric push rods F33 in the upper die mechanism and the lower die mechanism 2 are started, and the two electric push rods F33 respectively drive the corresponding lock rods F34 to be inserted into the clamping grooves A54 and the clamping grooves B55 on the corresponding stamping dies B10 and C15.

Then, two motors A30 in the upper die mechanism and the lower die mechanism 2 are started, and the two motors A30 respectively drive corresponding lock rods F34 to drive corresponding dies B10, dies C15 and dies F17 to separate from the punch-formed needle tail 83 on the steel wire 90. The motor D50 is started to drive the polishing rope 41 in the polishing mechanism A38 to enter the threading hole 84 formed in the needle tail 83 in a punching mode, the motor C47 and the motor B43 in the polishing mechanism A38 are started, the motor C47 drives the polishing rope 41 to horizontally move in the threading hole 84 along the length of the threading hole 84, and meanwhile, the motor B43 drives the polishing rope 41 to reciprocate up and down to polish the inner wall of the threading hole 84.

After the threading hole 84 is polished, the operation of the motor B43 and the motor C47 is stopped, and the motor D50 is started to drive the polishing rope 41 to be separated from the threading hole 84. Then, the hydraulic cylinder A36 is started to drive the upper die mechanism to move upwards to reset and separate from the steel wire 90, and the motor E60 in the transmission mechanism A56 is started to drive the steel wire 90 to move horizontally, so that the suture needle 82 formed at the forefront end reaches into the groove 69 on the transmission belt 68 of the transmission mechanism B65 under the guidance of the guide mechanism B64. The hydraulic cylinder B72 is started to drive the bracket F74 in the polishing mechanism B73 to drive the two pressing rollers 75 to press the sewing needle 82 into the groove 69 on the conveying belt 68, the motor G81 in the polishing mechanism B73 is started to drive the two pressing rollers 75 to drive the sewing needle 82 to rotate, the cone 76 on the pressing rollers 75 polishes the needle tail 83 of the sewing needle 82, and meanwhile the electric push rod G88 in the polishing mechanism C87 is started to drive the polishing sleeve 89 to be nested on the needle tip of the sewing needle 82 to polish the needle tip.

In summary, the beneficial effects of the invention are as follows: compared with the existing method for drilling the threading holes 84 by using a tiny drill bit, the method has higher efficiency in forming the threading holes 84 of the suture needle 82, has no defects of difficult drill bit alignment drilling and easy breakage or easy breakage of a punch head, and is suitable for batch operation.

Claims

1. An automatic production device for medical suture needles, which is characterized in that: the steel wire stamping machine comprises a platform, a lower die mechanism, a stamping die mechanism, a hydraulic cylinder A, a polishing mechanism A, a transmission mechanism A, a guide mechanism B, a transmission mechanism B, a polishing mechanism B and a polishing mechanism C, wherein the stamping die mechanism and the lower die mechanism which are used for stamping steel wires into suture needles with flat needle tails and needle points are arranged on the platform, the stamping die mechanism is driven by the hydraulic cylinder A to move up and down, and the lower die mechanism is fixed on the platform; the stamping die mechanism and the lower die mechanism are provided with a structure for removing stamping burrs of the needle tail and the needle tip of the formed suture needle and a structure for stamping the needle tail of the suture needle without closing the threading hole; the platform is provided with a polishing mechanism A for polishing threading holes on a sewing needle clamped by a punching die mechanism and a lower die mechanism, a transmission mechanism A for transmitting steel wires to the punching die mechanism and the lower die mechanism, a guide mechanism A for guiding the steel wires from the transmission mechanism A to a position between the punching die mechanism and the lower die mechanism, a polishing mechanism C for polishing the needle tip of the sewing needle, a transmission mechanism B for transmitting the sewing needle to the polishing mechanism C, a guide mechanism B for guiding the sewing needle between the punching die mechanism and the lower die mechanism to the transmission mechanism B and a polishing mechanism B for polishing the needle tail of the sewing needle positioned on the transmission mechanism B.

2. The automated medical needle production device according to claim 1, wherein: the upper die mechanism or the lower die mechanism comprises a guide sleeve, a die A, a spring A, a die B, a spring B, a die F, a spring C, a die D, a spring D, a die E, a spring E, a clamping plate and a spring F, wherein the die E which is arranged at the lower end of a hydraulic cylinder A or is fixed in a guide sleeve in a groove above a platform vertically slides in the guide sleeve and is used for punching and forming a needle point of a suture needle on a steel wire, the die B which is used for punching and forming a flat needle tail of the suture needle on the steel wire, the die A and the die D which are used for cutting burrs on the formed flat needle tail and the needle point, and the die F which is used for punching and not closing a threading hole on the punched and formed flat needle tail; a spring A for resetting the movement of the die A, a spring B for resetting the movement of the die B, a spring D for resetting the movement of the die D, a spring E for resetting the movement of the die E and a spring C for resetting the movement of the die F are arranged in the guide sleeve; the guide sleeve is provided with a structure for locking the stamping die A, the stamping die B, the stamping die D, the stamping die E and the stamping die F; two clamping plates which compress and fix the two parts which are formed by stamping on the steel wire are vertically slid in two sliding grooves at the lower end of the guide sleeve, and a spring F for resetting the clamping plates is arranged; the side wall of the guide sleeve is provided with a structure for driving the punch die B and the punch die F to avoid when the forming threading hole is polished through the polishing mechanism A under the condition that two parts of the steel wire which are formed by punching are pressed and fixed by the clamping plates.

3. The automated medical needle production device according to claim 2, wherein: the stamping die F vertically slides in a sliding groove B on the corresponding stamping die B, the stamping die F is connected with a stamping die C through a connecting block, and the connecting block and the stamping die C are in nested fit with the stamping die B; the side wall of the guide sleeve is respectively and horizontally provided with a sliding groove A which is in one-to-one correspondence with the stamping die A, the stamping die B, the stamping die C, the stamping die D, the stamping die E and the stamping die F, a locking rod A which is matched with a locking groove on the stamping die A and is driven by an electric push rod A, a locking rod B which is matched with a locking groove on the stamping die B and is driven by an electric push rod B, a locking rod C which is matched with a locking groove on the stamping die C and is driven by an electric push rod C, a locking rod D which is matched with a locking groove on the stamping die D and is driven by an electric push rod D and a locking rod E which is matched with a locking groove on the stamping die E and is driven by an electric push rod E;

4. The automated medical needle production device according to claim 1, wherein: the polishing mechanism A comprises a belt wheel A, a polishing rope, steel wool, a motor B, a sliding seat B, a screw rod B, a motor C, a sliding seat C, a screw rod C, a motor D, guide seats, chain wheels and a chain, wherein two sliding seats C are horizontally moved in two guide seats arranged on a platform along the direction perpendicular to the movement of the steel wire; each guide seat is provided with a screw rod C in threaded fit with the corresponding sliding seat C; the two screws C are respectively provided with a chain wheel, and the two chain wheels are connected through chain transmission; two sliding seats B horizontally slide along the direction parallel to the movement of the steel wire in the two sliding seats C; each sliding seat C is provided with a screw B in threaded fit with the corresponding sliding seat B, and the screw B is in transmission connection with an output shaft of a motor C on the sliding seat C; the two sliding seats B are synchronously connected through a bracket B, a bracket A is arranged on the bracket B, and two belt wheels A driven by a motor B are arranged on the bracket A; and polishing ropes are arranged on the two belt wheels A, and soft steel wool is densely distributed on the polishing ropes.

5. The automated medical needle production device according to claim 1, wherein: the transmission mechanism A comprises a pinch roller A, a gear A and a motor E, wherein two pinch rollers A for clamping steel wires are arranged on a bracket C arranged on the platform; the wheel shafts of the two pinch rollers A are respectively provided with a gear A, the two gears A are meshed with each other, and the wheel shafts of the pinch rollers A are in transmission connection with the output shaft of the motor E on the bracket C.

6. The automated medical needle production device according to claim 1, wherein: the guide mechanism A or the guide mechanism B comprises a bracket D and a pinch roller B, wherein two pinch rollers B for clamping steel wires are arranged on the bracket D arranged on the platform.

7. The automated medical needle production device according to claim 1, wherein: the conveying mechanism B comprises a bracket E, conveying rollers, a conveying belt and a motor F, wherein two conveying rollers driven by the motor F are arranged on the bracket E arranged on the platform, the conveying belts running along the movement direction of the steel wire are arranged on the two conveying rollers, and grooves for accommodating suture needles are formed in the conveying belts.

8. The automated medical needle production device according to claim 7, wherein: the polishing mechanism B comprises a press roller, a cone part, a gear B, a belt wheel B, a synchronous belt, a belt wheel C, a motor G and a hydraulic cylinder B, wherein a vertical telescopic hydraulic cylinder B is arranged on a portal frame B arranged on a platform, a bracket F is arranged at the lower end of the hydraulic cylinder B, and two press rollers for pressing steel wires in grooves on a conveying belt are arranged on the bracket F; the roller shafts where the two press rollers are positioned are provided with gears B, and the two gears B are meshed with each other; a belt wheel B is arranged on a roll shaft where one press roll is positioned, and the belt wheel B is in transmission connection with a belt wheel C on an output shaft of a motor G on a bracket F through a synchronous belt; one end of one compression roller is provided with a cone part for polishing the needle tail of the suture needle.

9. The automated medical needle production device according to claim 1, wherein: the polishing mechanism C comprises an electric push rod G and a polishing sleeve, wherein the electric push rod G stretching along the movement direction of the steel wire is arranged on the platform, and the polishing sleeve for polishing the needle point of the suture needle is arranged at the tail end of the electric push rod G.

10. The needle processing flow of the automated medical needle production device of claim 1, wherein: 1. conveying the steel wire to a die B and a die E of a lower die mechanism through a conveying mechanism A and a guiding mechanism A; 2. starting a hydraulic cylinder A to drive an upper die mechanism to punch steel wires, and clamping and fixing two parts formed by punching on the steel wires by two clamping plates of the upper die mechanism and two clamping plates of a lower die mechanism; 3. the electric push rod B of the upper die mechanism is started to drive the lock rod B to unlock the die B, the electric push rod D of the upper die mechanism is started to drive the lock rod D to unlock the die D, the electric push rod E of the upper die mechanism is started to drive the lock rod E to unlock the die E, the electric push rod A of the upper die mechanism is started to drive the lock rod A to unlock the die A, and the electric push rod C of the lower die mechanism is started to drive the lock rod C to unlock the die F; 4. starting a hydraulic cylinder A to drive a guide sleeve of the upper die mechanism to continuously move downwards, driving a stamping die F to stamp a flat needle tail which is stamped and formed on a steel wire to form a threading hole in an unsealed mode through a lock rod C, and simultaneously, shrinking clamping plates in the upper die mechanism and the lower die mechanism to a certain extent; 5. starting a hydraulic cylinder A to drive a guide sleeve and a die F of an upper die mechanism to reset upwards relative to a die A, a die B, a die D and a die E, and simultaneously resetting the die F in a lower die mechanism relative to the corresponding guide sleeve under the action of a corresponding spring C; 6. the electric push rod B of the upper die mechanism is started to drive the lock rod B to lock the die B, the electric push rod E of the upper die mechanism is started to drive the lock rod E to lock the die E, the electric push rod C of the lower die mechanism is started to drive the lock rod C to lock the die F, and the electric push rod B and the electric push rod E in the lower die mechanism are started to unlock the die B and the die E in the lower die mechanism; 7. starting a hydraulic cylinder A to drive a guide sleeve, a die A and a die D of the upper die mechanism to synchronously move downwards so as to punch and shear burrs on the punch-formed needle tail and the needle head; 8. the hydraulic cylinder A is started to drive the corresponding guide sleeve, the stamping die A and the stamping die D to reset relative to the stamping die B, the stamping die C and the stamping die E, the electric push rods F in the upper die mechanism and the lower die mechanism are started, the two electric push rods F respectively drive the corresponding lock rods F to be inserted into the clamping grooves A and B on the corresponding stamping die B and the corresponding stamping die C, the two motors A in the upper die mechanism and the lower die mechanism are started, and the two motors A respectively drive the corresponding lock rods F to drive the corresponding stamping die B, the stamping die C and the stamping die F to be separated from the punch-formed needle tails on the steel wires; 9. the motor D is started to drive the polishing rope to enter a threading hole formed in the needle tail in a punching mode, the motor C and the motor B are started, the motor C drives the polishing rope to horizontally move in the threading hole along the length of the threading hole, and meanwhile, the motor B drives the polishing rope to reciprocate up and down to polish the inner wall of the threading hole; 10. starting the hydraulic cylinder A to drive the upper die mechanism to move upwards, reset and separate from the steel wire, and starting the transmission mechanism A to drive the steel wire to move continuously, so that the suture needle formed at the forefront end reaches the transmission belt of the transmission mechanism B under the guidance of the guide mechanism B; 11. the hydraulic cylinder B is started to drive the support F in the polishing mechanism B to drive the two pressing rollers to press the sewing needle in the groove on the conveying belt, the motor G in the polishing mechanism B is started to drive the two pressing rollers to drive the sewing needle to rotate, the cone part on the pressing rollers polishes the needle tail of the sewing needle, and meanwhile the electric push rod G in the polishing mechanism C is started to drive the polishing sleeve to be nested on the needle point of the sewing needle to polish the needle point.