Core pulling machine suitable for medical braided tube

Abstract

The utility model discloses a core-pulling machine suitable for a medical braided tube, which relates to the field of medical instrument production equipment and comprises a rack, and a workbench is fixedly mounted on the rack; a wire arranging mechanism, a wire cutting mechanism, a wire pulling mechanism, a core pulling mechanism and an inner core recycling bin are sequentially and fixedly installed on the workbench from left to right. A medical braided tube is in driving connection in the wire arranging mechanism, the wire arranging mechanism drives the medical braided tube to penetrate through the wire cutting mechanism, the wire pulling mechanism clamps the end of the medical braided tube and pulls the medical braided tube into the core pulling mechanism, and the core pulling mechanism pulls out an inner core in the middle of the medical braided tube and conveys the inner core into the inner core recycling bin; compared with the prior art, when the medical braided tube is subjected to core pulling action, the left end of the medical braided tube is in a disconnected state, so that an inner core of the whole medical braided tube can be pulled out by the core pulling mechanism and can be automatically conveyed into the inner core recycling bin, the core pulling action of the medical braided tube can be facilitated, full automation is realized, the production efficiency is improved, and the production cost is reduced. And the core pulling quality of the medical braided tube can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of medical device production equipment, in particular to a core pulling machine suitable for medical braided tubes. Background Art

[0002] Medical braided tubes can be used in medical surgeries, such as vascular interventions, digestive tract and other medical surgeries. During the manufacturing process of medical braided tubes, a core body is usually set as a support to sequentially sleeve the braided mesh and the outer tube on the inner tube, and finally the core body needs to be pulled out to obtain the finished braided tube. However, in the related art, the current extraction method is mostly done manually, resulting in high labor intensity when the core body is extracted and low work efficiency.

[0003] In order to solve the above problems, the prior art (Announcement No.: CN117885364A, Announcement Date: 2024.04.16) discloses a core pulling device for medical braided tubes and a production line including the core pulling device, wherein the core pulling assembly is arranged on a support surface, and the core pulling assembly is configured to clamp a portion of the core body ejected from the tube body to be pulled out by the ejection assembly and move in a direction away from the tube body to be pulled out to pull the core body out of the tube body to be pulled out. The core pulling device can reduce labor intensity and improve work efficiency.

[0004] In the above scheme, part of the core needs to be ejected before the core is pulled out. The end of the core may be bent during the ejection process, and the recovery action needs to be performed manually, which is very inconvenient. Therefore, it is necessary to improve it. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings, the utility model provides a technical solution that can solve the above-mentioned problems.

[0006] A core pulling machine suitable for medical braided tubes comprises a frame on which a workbench is fixedly mounted;

[0007] The workbench is fixedly installed with a wire management mechanism, a wire cutting mechanism, a wire pulling mechanism, a core pulling mechanism and an inner core recovery bin from left to right.

[0008] A medical braided tube is connected to the wire management mechanism, which drives the medical braided tube to pass through the wire cutting mechanism. The wire pulling mechanism clamps the end of the medical braided tube and pulls it into the core pulling mechanism. The core pulling mechanism pulls out the inner core in the middle of the medical braided tube and transports it to the inner core recovery bin.

[0009] Furthermore: the wire management mechanism includes a wire management bracket and a plurality of transmission rollers, the plurality of transmission rollers are staggered with each other up and down, the transmission rollers are rotatably installed in the wire management bracket, and the medical braided belt is transported to the wire cutting mechanism through the plurality of transmission rollers.

[0010] Furthermore: one or more wire grooves are formed on the transmission roller, and the medical braided belt is installed in the wire groove with clearance fit.

[0011] Furthermore: a wire rack is arranged on the left side of the frame, a braided belt wheel is rotatably mounted on the wire rack, the medical braided belt is wound around the braided belt wheel, the medical braided belt is pulled out from the braided belt wheel and transported to the wire management mechanism.

[0012] Furthermore: the number of the braided belt pulleys is the same as the number of the wire grooves on a single transmission roller, and the medical braided belts are input into the wire grooves of the transmission roller in a one-to-one corresponding clearance fit.

[0013] Further: the wire cutting mechanism includes a horizontal frame, a wire cutting cylinder, an upper cutter and a lower cutter. The horizontal frame is fixedly installed above the right side of the wire management mechanism. The wire cutting cylinder is fixedly installed on the horizontal frame. The wire cutting cylinder drives the upper cutter to move up and down. The lower cutter is fixedly installed at the bottom of the right side of the wire management mechanism. When the upper cutter descends, it cooperates with the lower cutter to form a scissors structure.

[0014] Furthermore: one or more cutting edges are formed on the lower side of the upper cutter and the upper side of the lower cutter, and the number of the cutting edges is the same as the number of wire grooves on a single transmission roller.

[0015] Further: the wire pulling mechanism includes a first X-axis conveyor, a telescopic cylinder, a support frame and a first clamping cylinder. The first X-axis conveyor is fixedly installed on the workbench. The first X-axis conveyor drives the telescopic cylinder to move left and right, and the telescopic cylinder drives the support frame to move forward and backward. The first clamping cylinder is fixedly installed on the support frame.

[0016] Furthermore: two wire pulling mechanisms are provided, the two wire pulling mechanisms are symmetrically arranged front to back, and the two wire pulling mechanisms are staggered with each other.

[0017] Further: one or more first clamping jaw cylinders are provided, the number of the first clamping jaw cylinders is the same as the number of wire grooves on a single transmission roller, and the first clamping jaw cylinders are evenly arranged and installed on the support frames of the wire pulling mechanism on the front and rear sides.

[0018] Furthermore: the distance between two adjacent first clamping jaw cylinders is the same as the distance between two adjacent cutting edges.

[0019] Further: the core pulling mechanism includes a core pulling bracket, a wire clamping mechanism, a wire stripping mechanism, a transverse cylinder, a second X-axis conveyor and a second clamping claw cylinder. The core pulling bracket is fixedly installed on the workbench, the wire clamping mechanism is fixedly installed in the core pulling bracket, the wire stripping mechanism is laterally slidably installed in the core pulling bracket, the transverse cylinder is fixedly installed on the workbench and drives the wire stripping mechanism to move left and right, the second X-axis conveyor is fixedly installed on the workbench, the second X-axis conveyor drives the second clamping claw cylinder to move left and right, the second clamping claw cylinder is arranged on the right side of the wire stripping mechanism, the second clamping claw cylinder clamps the inner core of the medical braided belt and transports it to the inner core recovery bin through the second X-axis conveyor.

[0020] Furthermore: the wire stripping mechanism includes two wire stripping brackets, two wire stripping cylinders and two wire stripping cutters. The wire stripping cylinders are fixedly installed on the wire stripping brackets one by one. The wire stripping cylinders drive the wire stripping cutters to move up and down one by one. A scissors structure is formed between the two wire stripping cutters. The right side of the lower wire stripping cutter is arranged and fixedly installed with a convex edge at intervals, and the right side of the upper wire stripping cutter is arranged and fixedly installed with a clamping edge at intervals. The upper edge of the convex edge is installed in the clamping edge with a clearance fit. The side of the clamping edge is formed with a V-shaped groove, and the middle part of the V-shaped groove is formed with a wire clamping groove.

[0021] Furthermore: one or more cutting edges are formed on the inner sides of the two wire stripping cutters, the number of the cutting edges is the same as the number of wire grooves on a single transmission roller, and the number of V-shaped grooves is the same as the number of cutting edges.

[0022] Further: a U-shaped groove is formed on the bottom side of the pressing edge, and the upper edge of the convex edge is installed in the U-shaped groove on the bottom side of the pressing edge with clearance fit.

[0023] Further: the upper wire stripping bracket is slidably installed in the core pulling bracket, the lower wire stripping bracket is slidably installed on the workbench, two transverse cylinders are provided, the upper transverse cylinder is fixedly installed on the core pulling bracket and drives the upper wire stripping bracket to move left and right, the lower transverse cylinder is fixedly installed on the workbench and drives the lower wire stripping bracket to move left and right, and the upper and lower transverse cylinders operate synchronously with each other.

[0024] Further: a protective bracket is fixedly installed on the upper side of the frame, a protective cover is fixedly installed on the outer side of the protective bracket, one or more downward pressing mechanisms are fixedly installed inside the protective bracket, the downward pressing mechanism includes a downward pressing cylinder and a downward pressing strip, the downward pressing cylinder is fixedly installed inside the protective bracket, and the downward pressing cylinder drives the downward pressing strip to press the medical braided tube setting.

[0025] Furthermore: an outer tube recovery bin is fixedly installed on the workbench, wherein one or more downward pressure mechanisms drive the outer tube of the medical braided belt into the outer tube recovery bin, and another downward pressure mechanism drives the inner core of the medical braided belt into the inner core recovery bin.

[0026] Compared with the prior art, the beneficial effect of the utility model is that when the wire pulling mechanism pulls the medical braided tube and inputs it into the core pulling mechanism, the wire cutting mechanism cuts the medical braided tube, thereby facilitating the core pulling mechanism to pull out the inner core of the medical braided tube. Since the left end of the medical braided tube is in a disconnected state, the core pulling mechanism can pull out the inner core of the entire medical braided tube and automatically transport it to the inner core recovery bin, thereby facilitating the core pulling action of the medical braided tube, realizing full automation, improving production efficiency, and ensuring the quality of the core pulling of the medical braided tube.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 It is a structural schematic diagram of the utility model;

[0030] Figure 2 It is a schematic diagram of the structure when the wire rack and protective cover are hidden;

[0031] Figure 3 yes Figure 2 A schematic diagram of the structure from another perspective;

[0032] Figure 4 This is a schematic diagram of the structure behind the hidden rack;

[0033] Figure 5 It is a structural schematic diagram of the wire management mechanism and the wire cutting mechanism;

[0034] Figure 6 It is a structural diagram of the wire pulling mechanism;

[0035] Figure 7 It is a structural schematic diagram of the core pulling mechanism;

[0036] Figure 8 It is a structural schematic diagram of the wire stripping mechanism;

[0037] Fig. 9 It is a structural schematic diagram when the convex edge and the clamping edge cooperate with each other.

[0038] As shown in the figure: 1. Frame; 2. Workbench;

[0039] 3. Wire management mechanism; 31. Wire management bracket; 32. Transmission roller;

[0040] 4. Thread trimming mechanism; 41. Horizontal frame; 42. Thread trimming cylinder; 43. Upper cutter; 44. Lower cutter;

[0041] 5. Wire pulling mechanism; 51. First X-axis conveyor; 52. Telescopic cylinder; 53. Support frame; 54. First clamping claw cylinder;

[0042] 6. Core pulling mechanism; 61. Core pulling bracket; 62. Wire clamping mechanism; 63. Wire stripping mechanism; 631. Wire stripping bracket; 632. Wire stripping cylinder; 633. Wire stripping cutter; 64. Transverse cylinder; 65. Second X-axis conveyor; 66. Second clamping claw cylinder;

[0043] 7. Inner core recovery bin; 8. Medical braided tube; 9. Wire trough; 10. Wire rack; 11. Braided belt wire wheel; 12. Cutting edge; 13. Convex edge; 14. Pressing edge; 15. V-shaped groove; 16. Wire clamping groove; 17. Cutting edge; 18. U-shaped groove; 19. Protective bracket; 20. Protective cover;

[0044] 21. pressing mechanism; 211. pressing cylinder; 212. pressing bar;

[0045] 22. Outer casing recovery bin. DETAILED DESCRIPTION

[0046] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0047] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0048] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0049] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] like Figure 1-9 As shown, the core pulling machine of the utility model applicable to the medical braided tube 8 comprises a frame 1, on which a workbench 2 is fixedly mounted;

[0052] A wire arranging mechanism 3, a wire cutting mechanism 4, a wire pulling mechanism 5, a core pulling mechanism 6 and an inner core recovery bin 7 are fixedly installed on the workbench 2 from left to right;

[0053] The wire management mechanism 3 drives a medical braided tube 8 to pass through the wire cutting mechanism 4, and the wire pulling mechanism 5 clamps the end of the medical braided tube 8 and pulls it into the core pulling mechanism 6. The core pulling mechanism 6 extracts the inner core in the middle of the medical braided tube 8 and transports it to the inner core recovery bin 7;

[0054] The principle is: when the wire pulling mechanism 5 pulls the medical braided tube 8 and inputs it into the core pulling mechanism 6, the wire cutting mechanism 4 cuts off the medical braided tube 8, which makes it convenient for the core pulling mechanism 6 to pull out the inner core of the medical braided tube 8. Since the left end of the medical braided tube 8 is in a disconnected state, the core pulling mechanism 6 can pull out the inner core of the entire medical braided tube 8 and automatically transport it to the inner core recovery bin 7, which facilitates the core pulling action of the medical braided tube 8, realizes full automation, improves production efficiency, and ensures the quality of the core pulling of the medical braided tube 8.

[0055] Furthermore: the wire management mechanism 3 includes a wire management bracket 31 and a plurality of transmission rollers 32. The plurality of transmission rollers 32 are staggered with each other up and down. The transmission rollers 32 are rotatably installed in the wire management bracket 31. The medical braided belt is transported to the wire cutting mechanism 4 through the plurality of transmission rollers 32, making the transportation of the medical braided tube 8 more stable.

[0056] Furthermore: one or more wire grooves 9 are formed on the transmission roller 32, and the medical braided belt is installed in the wire groove 9 with clearance fit; the medical braided tube 8 can be in a straight state after passing through several transmission rollers 32, which is convenient for the wire pulling mechanism 5 to clamp and pull it into the core pulling mechanism 6.

[0057] Furthermore: a wire rack 10 is arranged on the left side of the frame 1, and a braided belt wheel 11 is rotatably installed on the wire rack 10. The medical braided belt is rolled up and wrapped around the braided belt wheel 11, and the medical braided belt is pulled out from the braided belt wheel 11 and transported to the wire management mechanism 3; the medical braided tube 8 that needs to be pulled out can be directly placed on the wire rack 10, and after the medical braided tube 8 is pulled out and input into the wire management mechanism 3, the automatic core pulling action can be realized, which is convenient and quick, and the operation of the equipment does not require multiple people to supervise, and the degree of automation is high.

[0058] Furthermore: the number of braided belt pulleys 11 is the same as the number of wire grooves 9 on a single transmission roller 32, and the medical braided belts are input into the wire grooves 9 of the transmission roller 32 with one-to-one clearance fit; multiple medical braided tubes 8 can be cored at the same time, and the production efficiency is higher.

[0059] Further: the wire cutting mechanism 4 includes a cross frame 41, a wire cutting cylinder 42, an upper cutter 43 and a lower cutter 44. The cross frame 41 is fixedly installed above the right side of the wire management mechanism 3, and the wire cutting cylinder 42 is fixedly installed on the cross frame 41. The wire cutting cylinder 42 drives the upper cutter 43 to move up and down. The lower cutter 44 is fixedly installed below the right side of the wire management mechanism 3. When the upper cutter 43 descends, it cooperates with the lower cutter 44 to form a scissors structure; when the wire cutting cylinder 42 drives the upper cutter 43 to descend, it can cut off the medical braided tube 8, which is convenient for the subsequent core pulling action.

[0060] Furthermore: one or more cutting edges 12 are formed on the lower side of the upper cutting knife 43 and the upper side of the lower cutting knife 44, and the number of the cutting edges 12 is the same as the number of wire grooves 9 on a single transmission roller 32; multiple medical braided tubes 8 can be cut at the same time, which can effectively speed up the core pulling efficiency of the medical braided tubes 8.

[0061] Furthermore: the wire pulling mechanism 5 includes a first X-axis conveyor 51, a telescopic cylinder 52, a support frame 53 and a first clamping cylinder 54. The first X-axis conveyor 51 is fixedly installed on the workbench 2. The first X-axis conveyor 51 drives the telescopic cylinder 52 to move left and right, and the telescopic cylinder 52 drives the support frame 53 to move forward and backward. The first clamping cylinder 54 is fixedly installed on the support frame 53; after the first clamping cylinder 54 clamps the medical braided tube 8, it can be automatically transported to the core pulling mechanism 6 through the first X-axis conveyor 51. After being transported to the right place, the telescopic cylinder 52 will drive the first clamping cylinder 54 to retract, so that the wire pulling mechanism 5 and the core pulling mechanism 6 do not interfere with each other.

[0062] Furthermore: two wire-pulling mechanisms 5 are provided, the two wire-pulling mechanisms 5 are symmetrically arranged front to back, and the two wire-pulling mechanisms 5 are staggered with each other; the stability of the wire-pulling action can be effectively improved.

[0063] Furthermore: one or more first clamping cylinders 54 are provided, the number of the first clamping cylinders 54 is the same as the number of the wire grooves 9 on the single transmission roller 32, and the first clamping cylinders 54 are evenly arranged and installed on the support frames 53 of the wire pulling mechanisms 5 on the front and rear sides; when transporting multiple medical braided tubes 8, multiple first clamping cylinders 54 can be used to clamp the medical braided tubes 8 one by one for transportation, with high stability.

[0064] Furthermore, the distance between two adjacent first clamping jaw cylinders 54 is the same as the distance between two adjacent cutting edges 12 , which can ensure the stability of the medical braided tube 8 during transportation.

[0065] Further: the core pulling mechanism 6 includes a core pulling bracket 61, a wire clamping mechanism 62, a wire stripping mechanism 63, a transverse cylinder 64, a second X-axis conveyor 65 and a second clamping claw cylinder 66. The core pulling bracket 61 is fixedly installed on the workbench 2, the wire clamping mechanism 62 is fixedly installed in the core pulling bracket 61, the wire stripping mechanism 63 is installed in the core pulling bracket 61 with a transverse sliding fit, the transverse cylinder 64 is fixedly installed on the workbench 2 and drives the wire stripping mechanism 63 to move left and right, the second X-axis conveyor 65 is fixedly installed on the workbench 2, the second X-axis conveyor 65 drives the second clamping claw cylinder 66 to move left and right, the second clamping claw cylinder 66 is arranged on the right side of the wire stripping mechanism 63, and the second clamping claw cylinder 66 clamps the inner of the medical braid The core is conveyed to the inner core recovery bin 7 through the second X-axis conveyor 65; before the core pulling action, the wire clamping mechanism 62 is first used to clamp the medical braided tube 8, and then the wire stripping mechanism 63 cuts the outer sleeve of the medical braided tube 8. After the cutting is completed, the wire stripping mechanism 63 is driven to move to the right by the transverse cylinder 64, so that the cut outer sleeve and the medical braided tube 8 are separated from each other, and finally the second clamping claw cylinder 66 is used to clamp the inner core exposed by the medical braided tube 8, and the second X-axis conveyor 65 is used to move to the right to realize the core pulling action. After the core pulling is completed, the outer sleeve and the inner core will be completely separated. At this time, the inner core will be just above the inner core recovery bin 7. After releasing the second clamping claw cylinder 66, the inner core can be effectively recovered.

[0066] Further: the wire stripping mechanism 63 includes two wire stripping brackets 631, two wire stripping cylinders 632 and two wire stripping cutters 633, the wire stripping cylinders 632 are fixedly installed on the wire stripping brackets 631 one by one, the wire stripping cylinders 632 drive the wire stripping cutters 633 to move up and down one by one, and a scissors structure is formed between the two wire stripping cutters 633, and the right side of the lower wire stripping cutter 633 is arranged and fixedly installed with a convex edge 13 at intervals, and the right side of the upper wire stripping cutter 633 is arranged and fixedly installed with a pressing edge 14 at intervals, and the upper edge of the convex edge 13 is provided with a gap. It is installed in the clamping edge 14, and the side of the clamping edge 14 is formed with a V-shaped groove 15, and the middle of the V-shaped groove 15 is formed with a wire clamping groove 16; the two wire stripping cutters 633 form a pair of scissors to cut the outer sleeve of the medical braided tube 8. During the cutting process, the medical braided tube 8 can be locked by the cooperation between the convex edge 13 and the sliding clamping edge 14, and the cutting positioning can be achieved at the same time to avoid the two wire stripping cutters 633 directly cutting off the medical braided tube 8. After the outer sleeve is cut off, the transverse cylinder 64 is used to drive the outer sleeve and the medical braided tube 8 to separate from each other.

[0067] Furthermore: one or more cutting edges 17 are formed on the inner sides of the two wire stripping cutters 633, the number of the cutting edges 17 is the same as the number of wire grooves 9 on a single drive roller 32, and the number of V-grooves 15 is the same as the number of cutting edges 17; when core pulling of multiple medical braided tubes 8 is performed, the V-grooves 15 can be used to achieve the positioning of each medical braided tube 8, which is convenient for accurate cutting of the outer sleeve.

[0068] Furthermore, a U-shaped groove 18 is formed on the bottom side of the pressing edge 14, and the upper edge of the convex edge 13 is installed in the U-shaped groove 18 on the bottom side of the pressing edge 14 with clearance fit, so that the medical braided tube 8 can be accurately positioned.

[0069] Furthermore: the upper wire stripping bracket 631 is slidably installed in the core pulling bracket 61, and the lower wire stripping bracket 631 is slidably installed on the workbench 2. Two transverse cylinders 64 are provided. The upper transverse cylinder 64 is fixedly installed on the core pulling bracket 61 and drives the upper wire stripping bracket 631 to move left and right. The lower transverse cylinder 64 is fixedly installed on the workbench 2 and drives the lower wire stripping bracket 631 to move left and right. The transverse cylinders 64 on the upper and lower sides operate synchronously with each other; the wire stripping cutters 633 on the upper and lower sides can move synchronously to achieve stable stripping of the outer sleeve at the end of the medical braided tube 8.

[0070] Further: a protective bracket 19 is fixedly installed on the upper side of the frame 1, a protective cover 20 is fixedly installed on the outer side of the protective bracket 19, and one or more pressing mechanisms 21 are fixedly installed in the protective bracket 19, and the pressing mechanism 21 includes a pressing cylinder 211 and a pressing strip 212, and the pressing cylinder 211 is fixedly installed in the protective bracket 19, and the pressing cylinder 211 drives the pressing strip 212 to press the medical braided tube 8; an outer tube recovery bin 22 is fixedly installed on the workbench 2, wherein one or more pressing mechanisms 21 drive the outer tube of the medical braided belt to be input into the outer tube recovery bin 22, and another pressing mechanism 21 drives the inner core of the medical braided belt to be input into the inner core recovery bin 7; the setting of the protective bracket 19 and the protective cover 20 can provide effective protection for the equipment to avoid being blocked by foreign objects during the operation of the equipment, and at the same time, the pressing mechanism 21 can be used to drive the outer tube and the inner core of the medical braided tube 8 after the core is pulled out to be respectively transported to the outer tube recovery bin 22 and the inner core recovery bin 7, which is convenient for actual operation.

[0071] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

Claims

1. A core pulling machine suitable for medical braided tubes, comprising a frame on which a workbench is fixedly mounted; The workbench is fixedly installed with a wire management mechanism, a wire cutting mechanism, a wire pulling mechanism, a core pulling mechanism and an inner core recovery bin from left to right. A medical braided tube is connected to the wire management mechanism, which drives the medical braided tube to pass through the wire cutting mechanism. The wire pulling mechanism clamps the end of the medical braided tube and pulls it into the core pulling mechanism. The core pulling mechanism pulls out the inner core in the middle of the medical braided tube and transports it to the inner core recovery bin.

2. The core pulling machine for medical braided tube according to claim 1, characterized in that: The wire management mechanism comprises a wire management bracket and a plurality of transmission rollers, the transmission rollers are rotatably mounted in the wire management bracket, and the medical braided belt is transported to the wire cutting mechanism through the plurality of transmission rollers.

3. The core pulling machine for medical braided tube according to claim 1, characterized in that: The wire pulling mechanism includes a first X-axis conveyor, a telescopic cylinder, a support frame and a first clamping claw cylinder. The first X-axis conveyor drives the telescopic cylinder to move left and right, and the telescopic cylinder drives the support frame to move forward and backward. The first clamping claw cylinder is fixedly installed on the support frame.

4. The core pulling machine for medical braided tube according to claim 1, characterized in that: The core pulling mechanism includes a core pulling bracket, a wire clamping mechanism, a wire stripping mechanism, a transverse cylinder, a second X-axis conveyor and a second clamping claw cylinder. The core pulling bracket is fixedly installed on the workbench, the wire clamping mechanism is fixedly installed in the core pulling bracket, the wire stripping mechanism is installed in the core pulling bracket with transverse sliding cooperation, the transverse cylinder drives the wire stripping mechanism to move left and right, and the second X-axis conveyor drives the second clamping claw cylinder to move left and right.

5. The core pulling machine for medical braided tube according to claim 4, characterized in that: The wire stripping mechanism includes two wire stripping brackets, two wire stripping cylinders and two wire stripping cutters. The wire stripping cylinders are fixedly installed on the wire stripping brackets one by one. The wire stripping cylinders drive the wire stripping cutters to move up and down one by one, and a scissor structure is formed between the two wire stripping cutters.

6. The core pulling machine for medical braided tube according to claim 5, characterized in that: The right side of the lower wire stripping cutter is arranged at intervals and fixedly installed with a convex edge, and the right side of the upper wire stripping cutter is arranged at intervals and fixedly installed with a clamping edge, and the upper side edge of the convex edge is installed in the clamping edge with a clearance fit.

7. The core pulling machine for medical braided tube according to claim 6, characterized in that: A V-shaped groove is formed on the side of the pressing edge, and a wire clamping groove is formed in the middle of the V-shaped groove.

8. The core pulling machine for medical braided tubes according to any one of claims 6 or 7, characterized in that: A U-shaped groove is formed on the bottom side of the clamping edge, and the upper edge of the convex edge is installed in the U-shaped groove on the bottom side of the clamping edge with clearance fit.

9. The core pulling machine for medical braided tube according to claim 1, characterized in that: A protection bracket is fixedly installed on the upper side of the frame, and one or more pressing mechanisms are fixedly installed inside the protection bracket.

10. The core pulling machine for medical braided tube according to claim 9, characterized in that: An outer tube recovery bin is fixedly installed on the workbench, wherein one or more downward pressing mechanisms drive the outer tube of the medical braided belt into the outer tube recovery bin, and another downward pressing mechanism drives the inner core of the medical braided belt into the inner core recovery bin.

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