Remaining needle guide wire automatic assembly and Z crimping circulation equipment and use method

Abstract

The invention discloses remaining needle guide wire automatic assembly and Z crimping circulation equipment and a using method, the remaining needle guide wire automatic assembly and Z crimping circulation equipment comprises an equipment main body, a frame body and a lower cabinet box are positioned and mounted at the bottom of the equipment main body, an upper cabinet box is positioned and mounted at the upper end of the equipment main body, and a conveying seat is mounted in the equipment main body; a feeding pushing mechanism and a feeding protection box are assembled at one end of the conveying base, a discharging pushing mechanism and a discharging protection box are assembled at the other end of the conveying base, and a monitoring control mechanism is installed at the rear end of the conveying base. According to the remaining needle guide wire automatic assembly and Z pressure welding circulation equipment and the use method, the manual guide wire penetrating process is reduced, the equipment achieves automatic assembly, various requirements of market products are met to the maximum extent, a conveying system is more stable, meanwhile, starting, detection, blocking and clamping positioning can be effectively controlled, precision is high, accuracy is excellent, the assembly effect is improved, and the production efficiency is improved. And full-automatic Z pressure assembling is achieved.

Description

Technical Field

[0001] This invention relates to the field of indwelling needle guidewire assembly technology, and particularly to an automatic assembly and Z-crimping circulation device and method for using indwelling needle guidewires. Background Technology

[0002] The indwelling needle guidewire automatic assembly is a support device for assembling the indwelling needle guidewire with the inner and outer rings and the pull-out tube. It uses a cannula, catheter, and guidewire. The puncture needle with a needle core penetrates the anterior and posterior walls of the blood vessel, the needle core is withdrawn, and the needle is slowly pulled outward until blood sprays from the needle tail. The guidewire is then quickly inserted, the puncture needle is withdrawn, and the catheter is introduced through the guidewire, thus placing the catheter into the blood vessel. During the manufacture of the indwelling needle, the cannula and catheter need to be assembled and fixed. With the continuous development of technology, people's requirements for the automatic assembly of indwelling needle guidewires are also getting higher and higher.

[0003] Existing automated assembly systems for indwelling needle guidewires have certain drawbacks. Currently, the most common automated assembly and Z-crimping circulation equipment for indwelling needle guidewires in China still relies heavily on manual operation, including manual material handling, manual cannulation, manual assembly, and manual crimping with the aid of auxiliary tools. This wastes a lot of labor, is inefficient, inconsistent in efficiency, and produces inconsistent product quality, which has a certain adverse effect on actual use. Therefore, we propose an automated assembly and Z-crimping circulation system for indwelling needle guidewires and its usage method. Summary of the Invention

[0004] Technical problem solved: In view of the shortcomings of the prior art, the present invention provides an automatic assembly and Z-crimping circulation device and method for indwelling needle guidewires, which reduces the manual guidewire threading process, automates the assembly process, maximizes the satisfaction of various market product needs, makes the conveying system more stable, and can effectively control the start-up, detection, blocking, clamping and positioning with high precision and excellent accuracy, thereby improving the assembly effect and effectively solving the problems in the background technology.

[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by this invention is as follows: an automatic assembly and Z-pressing circulation device for indwelling needle guide wires. A frame and a lower cabinet are positioned at the bottom of the main body of the device, and an upper cabinet is positioned at the top of the main body. A conveyor seat is installed inside the main body. One end of the conveyor seat is equipped with a feeding and pushing mechanism and a feeding protection box, while the other end is equipped with a discharging and pushing mechanism and a discharging protection box. A monitoring and control mechanism is installed at the rear end of the conveyor seat. From the feeding to the discharging position, the conveyor seat is sequentially equipped with a feeding mechanism, an inner and outer ring assembly mechanism, an inner and outer ring assembly pre-reserved section, a drawing tube assembly mechanism, a Z-pressing positioning mechanism, and a discharging mechanism. The inner and outer ring assembly mechanism includes inner and outer ring unloading racks, a first support, a first assembly clamp, a first lifting cylinder, a functional reserved mechanism, a first rotary clamping assembly, and a first lifting rail; The tube drawing assembly mechanism includes a tube drawing unloading rack, a second support, a second assembly clamp, a second lifting rail, a second rotary clamping assembly, and a second lifting cylinder. The Z-pressing positioning mechanism includes a lifting assembly, a pressing assembly, a Z-pressing assembly, a clamping assembly, and a translational drive assembly; The feeding mechanism is equipped with a tray fixture, a needle holder, a locking groove, a positioning sensor, a sensing plate, a sensor holder, and a blocking cylinder.

[0006] As a preferred technical solution of this application, the first lifting cylinder is disposed at the upper end of the functional reserved mechanism, the first assembly clamp is located at the top front end of the first lifting cylinder, the inner and outer ring unloading racks are installed on the top side of the first bracket, the end of the first assembly clamp is disposed at the bottom of the inner and outer ring unloading racks, the first rotary clamping assembly is disposed inside the first lifting track, the functional reserved mechanism and the first lifting cylinder drive the first assembly clamp to lift and adjust, the first rotary clamping assembly moves up and down inside the first lifting track, and the first assembly clamp and the first rotary clamping assembly are assembled together.

[0007] As a preferred technical solution of this application, the second assembly clamp is disposed on the top of the second lifting cylinder, the drawing tube unloading rack is disposed on the top side of the second bracket, the second rotary clamping assembly is disposed on the inner side of the second lifting track for up and down movement, the second assembly clamp is driven to move up and down by the second lifting cylinder, and the second assembly clamp and the second rotary clamping assembly are assembled together.

[0008] As a preferred technical solution of this application, the pressing component is installed on the top of the lifting component, the Z-pressing component is installed on the side of the pressing component, the clamping component is disposed on the upper end of the translation drive component, the lifting component drives the pressing component to adjust up and down, the pressing component and the Z-pressing component are pressed and positioned, the translation drive component drives the clamping component to move in translation, and the clamping component clamps the indwelling needle tube.

[0009] As a preferred technical solution of this application, the pallet fixture is disposed at the upper end of the feeding mechanism, the blocking cylinder and the sensor bracket are both installed at the bottom of the feeding mechanism, and the sensing plate and the positioning sensor are both disposed on the sensor bracket.

[0010] As a preferred technical solution of this application, the monitoring and control mechanism includes a feeding detection component, an inner and outer ring assembly detection component, a drawn tube assembly detection component, a Z-crimping detection component, a communication component, a central processing unit, a display component, an alarm component, and a control component. The feeding detection component, the inner and outer ring assembly detection component, the drawn tube assembly detection component, and the Z-crimping detection component are all connected to the communication component. The communication component is connected to the central processing unit, and the central processing unit is connected to the display component, the alarm component, and the control component.

[0011] As a preferred technical solution of this application, the output ends of the feeding detection component, the inner and outer ring assembly detection component, the drawing tube assembly detection component and the Z-pressing detection component are all connected to the input end of the central processing unit through the communication component, and the output end of the central processing unit is connected to the input end of the display component, the alarm component and the control component.

[0012] The operating procedure for the automatic assembly and Z-crimping circulation equipment for indwelling needle guidewires includes the following steps: S1: Indwelling needle loading: The indwelling needle to be assembled is clamped in the locking groove, fixed on the tray fixture by the indwelling needle bracket, and conveyed forward on the conveyor seat; S2: Inner and outer ring assembly: When the tray fixture moves forward to the position of the inner and outer ring assembly mechanism, the inner and outer rings on the inner and outer ring unloading rack automatically fall down and are clamped and rotated by the first rotary clamping component. After rotation, the first assembly clamp holds the inner and outer rings and presses them down to assemble them at the indwelling needle. S3: Pulling tube assembly: After the inner and outer rings are assembled, the tray fixture continues to be conveyed forward to the pulling tube assembly mechanism. The pulling tube on the pulling tube unloading rack automatically falls down and is clamped and rotated by the second rotary clamping component. After rotation, the second assembly clamp holds the pulling tube and presses it down to assemble it to the indwelling needle. S4: Z-pressure positioning: After the tube is assembled, the tray fixture continues to be conveyed forward to the Z-pressure positioning mechanism. The translation drive component drives the clamping component to translate. The clamping component clamps the position of the indwelling needle. The pressing component and the Z-pressure component work together to press down for Z-pressure positioning, and finally the material is discharged.

[0013] Beneficial Effects: Compared with existing technologies, this invention provides an automatic assembly and Z-crimping circulation device and method for indwelling needle guidewires, which has the following beneficial effects: This automatic assembly and Z-crimping circulation device and method for indwelling needle guidewires reduces the manual guidewire threading process, automates assembly, maximizes the satisfaction of various market product needs, and makes the conveying system more stable. It also effectively controls start-up, detection, blocking, clamping, and positioning with high precision and excellent accuracy, increasing assembly efficiency. This application utilizes high-precision conveyor lines, SMC cylinders, Siemens PLCs, Proface touchscreens, and conveyor motors to ensure stable conveying of materials to be assembled, and facilitates easy material loading. The equipment automatically senses the position of the pallet, automatically blocks, and automatically clamps and positions it. It guides and clamps the material, automatically retrieves inner and outer tubes, automatically positions the guidewire, automatically threads the guidewire, and automatically Z-crims it, ensuring no slippage during rotation after Z-crimping. Operation and replacement are convenient and more efficient. The fully automated Z-pressure assembly is widely used in the medical indwelling needle industry and in the field of automatic guidewire assembly and crimping. The entire automatic assembly structure of the indwelling needle guidewire is simple, easy to operate, and has better results than the traditional method. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the automatic assembly and Z-crimping circulation device and method for indwelling needle guidewire of the present invention.

[0015] Figure 2 This is a schematic diagram of the overall internal structure of the automatic assembly and Z-crimping circulation device and method for indwelling needle guidewire of the present invention.

[0016] Figure 3 This is a top view of the automatic assembly and Z-crimping circulation device and method for indwelling needle guidewires of the present invention.

[0017] Figure 4 This is a structural schematic diagram of the main view of the automatic assembly and Z-crimping circulation device and method for indwelling needle guidewire of the present invention.

[0018] Figure 5 This is a schematic diagram of the overall side structure of the automatic assembly and Z-pressing circulation device and method for indwelling needle guidewire of the present invention.

[0019] Figure 6 This is a schematic diagram of the inner and outer rings and the pull-out tube assembly mechanism in the automatic assembly and Z-pressing circulation equipment and method for indwelling needle guide wire of the present invention.

[0020] Figure 7 This is a schematic diagram of the Z-pressing positioning mechanism in the automatic assembly and Z-pressing circulation equipment and method for indwelling needle guide wire of the present invention.

[0021] Figure 8This is a structural schematic diagram of point A in the automatic assembly and Z-pressing circulation device and method for indwelling needle guidewire of the present invention.

[0022] Figure 9 This is a schematic diagram of the monitoring and control mechanism in the automatic assembly and Z-crimping circulation equipment and method for using indwelling needle guidewires of the present invention.

[0023] In the diagram: 1. Main body of the equipment; 2. Upper cabinet; 3. Monitoring and control mechanism; 4. Feed protection box; 5. Feeding and pushing mechanism; 6. Conveyor seat; 7. Frame; 8. Lower cabinet; 9. Discharge and pushing mechanism; 10. Discharge protection box; 11. Inner and outer ring assembly mechanism; 12. Pull-out tube assembly mechanism; 13. Z-pressing and positioning mechanism; 14. Unloading mechanism; 15. Inner and outer ring assembly reserved part; 16. Feeding mechanism; 17. Inner and outer ring unloading rack; 18. First support; 19. First assembly clamp; 20. First lifting cylinder; 21. Functional reserved mechanism; 22. Indwelling needle support; 23. Pallet fixture; 24. Clamping groove; 25. First lifting rail; 26. Second lifting cylinder ; 27. Second rotary clamping assembly; 28. Second lifting rail; 29. ​​Second assembly clamp; 30. Pull-out tube unloading rack; 31. Second bracket; 32. First rotary clamping assembly; 33. Lifting assembly; 34. Pressing assembly; 35. Z-pressing assembly; 36. Clamping clamping assembly; 37. Translation drive assembly; 38. Position sensor; 39. Sensing plate; 40. Sensor bracket; 41. Blocking cylinder; 42. Feed detection assembly; 43. Inner and outer ring assembly detection assembly; 44. Pull-out tube assembly detection assembly; 45. Z-pressing detection assembly; 46. Communication assembly; 47. Central processing unit; 48. Display assembly; 49. Alarm assembly; 50. Control assembly. Detailed Implementation

[0024] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are some embodiments of the present invention, but not all embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0025] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] like Figure 1-9 As shown, the indwelling needle guide wire automatic assembly and Z-crimping circulation equipment includes a main body 1. A frame 7 and a lower cabinet 8 are positioned and installed at the bottom of the main body 1. An upper cabinet 2 is positioned and installed at the top of the main body 1. A conveyor seat 6 is installed inside the main body 1. A feeding and pushing mechanism 5 and a feeding protection box 4 are assembled at one end of the conveyor seat 6. A discharging and pushing mechanism 9 and a discharging protection box 10 are assembled at the other end of the conveyor seat 6. A monitoring and control mechanism 3 is installed at the rear end of the conveyor seat 6. From the feeding position to the discharging position, the conveyor seat 6 is sequentially equipped with a feeding mechanism 16, an inner and outer ring assembly mechanism 11, an inner and outer ring assembly reserved part 15, a drawing tube assembly mechanism 12, a Z-crimping positioning mechanism 13, and a discharging mechanism 14. The manual wire threading process is reduced, the equipment is automatically assembled, and it maximizes the satisfaction of various market product needs. The conveying system is more stable, and it can effectively control the start-up, detection, blocking, clamping and positioning. It has high precision and excellent accuracy, and improves the assembly effect. The inner and outer ring assembly mechanism 11 includes inner and outer ring unloading racks 17, a first support 18, a first assembly clamp 19, a first lifting cylinder 20, a functional reservation mechanism 21, a first rotary clamping assembly 32, and a first lifting track 25. The first lifting cylinder 20 is located at the upper end of the functional reservation mechanism 21, and the first assembly clamp 19 is located at the top front end of the first lifting cylinder 20. The inner and outer ring unloading racks 17 are installed on the top side of the first support 18, and the end of the first assembly clamp 19 is located at the bottom of the inner and outer ring unloading racks 17. The first rotary clamping assembly 32 is located inside the first lifting track 25. The functional reservation mechanism 21 and the first lifting cylinder 20 drive the first assembly clamp 19 to lift and adjust. The first rotary clamping assembly 32 moves up and down inside the first lifting track 25. The first assembly clamp 19 and the first rotary clamping assembly 32 cooperate to assemble. The tube drawing assembly mechanism 12 includes a tube drawing unloading rack 30, a second support 31, a second assembly clamp 29, a second lifting rail 28, a second rotary clamping assembly 27, and a second lifting cylinder 26. The second assembly clamp 29 is located on the top of the second lifting cylinder 26, the tube drawing unloading rack 30 is located on the top side of the second support 31, and the second rotary clamping assembly 27 is located inside the second lifting rail 28 and moves up and down. The second assembly clamp 29 is driven to move up and down by the second lifting cylinder 26, and the second assembly clamp 29 and the second rotary clamping assembly 27 are assembled together. The Z-pressing positioning mechanism 13 includes a lifting component 33, a pressing component 34, a Z-pressing component 35, a clamping component 36, and a translational drive component 37. The pressing component 34 is installed on the top of the lifting component 33, the Z-pressing component 35 is installed on the side of the pressing component 34, and the clamping component 36 is located on the upper end of the translational drive component 37. The lifting component 33 drives the pressing component 34 to adjust up and down, and the pressing component 34 and the Z-pressing component 35 perform pressing positioning. The translational drive component 37 drives the clamping component 36 to move in translation, and the clamping component 36 clamps the indwelling needle tube. The feeding mechanism 16 is equipped with a tray fixture 23, a needle holder 22, a locking groove 24, a position sensor 38, a sensing plate 39, a sensor bracket 40, and a blocking cylinder 41. The tray fixture 23 is located at the upper end of the feeding mechanism 16, the blocking cylinder 41 and the sensor bracket 40 are both installed at the bottom of the feeding mechanism 16, and the sensing plate 39 and the position sensor 38 are both installed on the sensor bracket 40.

[0028] The monitoring and control mechanism 3 includes a feed detection component 42, an inner and outer ring assembly detection component 43, a tube drawing assembly detection component 44, a Z-crimping detection component 45, a communication component 46, a central processing unit 47, a display component 48, an alarm component 49, and a control component 50. The feed detection component 42, the inner and outer ring assembly detection component 43, the tube drawing assembly detection component 44, and the Z-crimping detection component 45 are all connected to the communication component 46. The communication component 46 is connected to the central processing unit 47. The central processing unit 47 is connected to the display component 48, the alarm component 49, and the control component 50. The output terminals of the feed detection component 42, the inner and outer ring assembly detection component 43, the tube drawing assembly detection component 44, and the Z-crimping detection component 45 are all connected to the input terminals of the central processing unit 47 through the communication component 46. The output terminals of the central processing unit 47 are connected to the input terminals of the display component 48, the alarm component 49, and the control component 50.

[0029] The operating procedure for the automatic assembly and Z-crimping circulation equipment for indwelling needle guidewires includes the following steps: S1: Indwelling needle loading: The indwelling needle to be assembled is clamped in the locking groove 24, fixed on the tray fixture 23 by the indwelling needle bracket 22, and conveyed forward on the conveyor seat 6; S2: Inner and outer ring assembly: When the tray fixture 23 moves forward to the position of the inner and outer ring assembly mechanism 11, the inner and outer rings on the inner and outer ring unloading rack 17 automatically fall down, and the inner and outer rings are clamped and rotated by the first rotary clamping component 32. After rotation, the first assembly clamp 19 clamps the inner and outer rings and presses them down to assemble them at the indwelling needle. S3: Pulling tube assembly: After the inner and outer rings are assembled, the tray fixture 23 continues to be conveyed forward to the pulling tube assembly mechanism 12. The pulling tube on the pulling tube unloading rack 30 automatically falls down and is clamped and rotated by the second rotary clamping component 27. After rotation, the second assembly clamp 29 clamps the pulling tube and presses it down to assemble it to the indwelling needle. S4: Z-pressure positioning: After the tube is assembled, the tray fixture 23 continues to be conveyed forward to the Z-pressure positioning mechanism 13. The translation drive component 37 drives the clamping component 36 to translate. The clamping component 36 clamps the position of the indwelling needle. The pressing component 34 and the Z-pressure component 35 cooperate to press down for Z-pressure positioning, and finally the material is discharged.

[0030] Working Principle: This invention includes a main body 1, an upper cabinet 2, a monitoring and control mechanism 3, a feeding protection box 4, a feeding and pushing mechanism 5, a conveyor seat 6, a frame 7, a lower cabinet 8, a discharging and pushing mechanism 9, a discharging protection box 10, an inner and outer ring assembly mechanism 11, a drawing tube assembly mechanism 12, a Z-pressing and positioning mechanism 13, a discharging mechanism 14, inner and outer ring assembly reserved parts 15, a feeding mechanism 16, inner and outer ring discharging racks 17, a first support 18, a first assembly clamp 19, a first lifting cylinder 20, a functional reserved mechanism 21, a needle holder 22, a tray fixture 23, a locking groove 24, a first lifting rail 25, and a second lifting cylinder 26. 6. Second rotary clamping assembly 27, second lifting rail 28, second assembly clamp 29, drawing tube unloading rack 30, second bracket 31, first rotary clamping assembly 32, lifting assembly 33, pressing assembly 34, Z-press assembly 35, clamping clamping assembly 36, translation drive assembly 37, positioning sensor 38, sensing plate 39, sensor bracket 40, blocking cylinder 41, feeding detection assembly 42, inner and outer ring assembly detection assembly 43, drawing tube assembly detection assembly 44, Z-press detection assembly 45, communication assembly 46, central processing unit 47, display assembly 48, alarm assembly 49, and control assembly 50, to be assembled The inserted indwelling needle is secured in the locking groove 24 and fixed to the tray fixture 23 by the indwelling needle bracket 22, and is conveyed forward on the conveyor seat 6. When the tray fixture 23 moves forward to the position of the inner and outer ring assembly mechanism 11, the inner and outer rings on the inner and outer ring unloading rack 17 automatically fall downward, are clamped by the first rotary clamping component 32 and rotated, and after rotation, the first assembly clamp 19 clamps the inner and outer rings and presses them downward to assemble them at the indwelling needle position. After the inner and outer rings are assembled, the tray fixture 23 continues to convey forward to the drawing tube assembly mechanism 12, and the drawing tube on the drawing tube unloading rack 30 automatically falls downward, and is clamped by the second rotary clamping component 27. The tube rotates, and after rotation, the second assembly clamp 29 clamps the pull tube and presses it down to assemble it at the indwelling needle position. After the pull tube is assembled, the tray fixture 23 continues to convey it forward to the Z-pressing positioning mechanism 13. The translation drive component 37 drives the clamping component 36 to translate. The clamping component 36 clamps the indwelling needle position. The pressing component 34 and the Z-pressing component 35 work together to press down for Z-pressing positioning, and finally discharge the material. This reduces the manual wire threading process, and the equipment assembles automatically, maximizing the satisfaction of various market product needs. The conveying system is more stable, and it can effectively control the start-up, detection, blocking, clamping and positioning. It has high precision and excellent accuracy, and increases the assembly effect.

[0031] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An automatic assembly and Z-crimping circulation device for indwelling needle guidewires, comprising a main body (1), characterized in that: The bottom of the main body (1) of the equipment is equipped with a frame (7) and a lower cabinet (8). The upper cabinet (2) is installed at the top of the main body (1). The inside of the main body (1) is equipped with a conveyor seat (6). One end of the conveyor seat (6) is equipped with a feeding and pushing mechanism (5) and a feeding protection box (4). The other end of the conveyor seat (6) is equipped with a discharging and pushing mechanism (9) and a discharging protection box (10). The rear end of the conveyor seat (6) is equipped with a monitoring and control mechanism (3). The conveyor seat (6) is equipped with a feeding mechanism (16), an inner and outer ring assembly mechanism (11), an inner and outer ring assembly reserved part (15), a pull tube assembly mechanism (12), a Z-pressing positioning mechanism (13), and a discharging mechanism (14) in sequence from the feeding to the discharging position. The inner and outer ring assembly mechanism (11) includes an inner and outer ring unloading rack (17), a first support (18), a first assembly clamp (19), a first lifting cylinder (20), a function reserved mechanism (21), a first rotary clamping assembly (32), and a first lifting rail (25). The tube drawing assembly mechanism (12) includes a tube drawing unloading rack (30), a second support (31), a second assembly clamp (29), a second lifting rail (28), a second rotary clamping assembly (27), and a second lifting cylinder (26). The Z-pressing positioning mechanism (13) includes a lifting assembly (33), a pressing assembly (34), a Z-pressing assembly (35), a clamping assembly (36), and a translational drive assembly (37). The feeding mechanism (16) is provided with a tray fixture (23), a needle holder (22), a locking groove (24), a positioning sensor (38), a sensing plate (39), a sensor holder (40), and a blocking cylinder (41).

2. The automatic assembly and Z-crimping circulation device for indwelling needle guidewires according to claim 1, characterized in that: The first lifting cylinder (20) is located at the upper end of the functional reserved mechanism (21), the first assembly clamp (19) is located at the top front end of the first lifting cylinder (20), the inner and outer ring unloading rack (17) is installed on the top side of the first bracket (18), the end of the first assembly clamp (19) is located at the bottom of the inner and outer ring unloading rack (17), the first rotary clamping assembly (32) is located inside the first lifting track (25), the functional reserved mechanism (21) and the first lifting cylinder (20) drive the first assembly clamp (19) to lift and adjust, the first rotary clamping assembly (32) moves up and down inside the first lifting track (25), and the first assembly clamp (19) and the first rotary clamping assembly (32) are assembled together.

3. The automatic assembly and Z-crimping circulation device for indwelling needle guidewires according to claim 1, characterized in that: The second assembly clamp (29) is located on the top of the second lifting cylinder (26), the pull tube unloading rack (30) is located on the top side of the second bracket (31), the second rotary clamping assembly (27) is located inside the second lifting track (28) and moves up and down, the second assembly clamp (29) is driven to move up and down by the second lifting cylinder (26), and the second assembly clamp (29) and the second rotary clamping assembly (27) are assembled together.

4. The automatic assembly and Z-crimping circulation device for indwelling needle guidewires according to claim 1, characterized in that: The pressing component (34) is installed on the top of the lifting component (33), the Z-pressure component (35) is installed on the side of the pressing component (34), the clamping component (36) is set on the upper end of the translation drive component (37), the lifting component (33) drives the pressing component (34) to adjust up and down, the pressing component (34) and the Z-pressure component (35) are pressed and positioned, the translation drive component (37) drives the clamping component (36) to move in translation, and the clamping component (36) clamps the indwelling needle tube.

5. The automatic assembly and Z-crimping circulation device for indwelling needle guidewires according to claim 1, characterized in that: The tray fixture (23) is located at the upper end of the feeding mechanism (16), the blocking cylinder (41) and the sensor bracket (40) are both installed at the bottom of the feeding mechanism (16), and the sensing plate (39) and the positioning sensor (38) are both installed on the sensor bracket (40).

6. The automatic assembly and Z-crimping circulation device for indwelling needle guidewires according to claim 1, characterized in that: The monitoring and control mechanism (3) includes a feed detection component (42), an inner and outer ring assembly detection component (43), a tube pull-out assembly detection component (44), a Z-crimping detection component (45), a communication component (46), a central processing unit (47), a display component (48), an alarm component (49), and a control component (50). The feed detection component (42), the inner and outer ring assembly detection component (43), the tube pull-out assembly detection component (44), and the Z-crimping detection component (45) are all connected to the communication component (46). The communication component (46) is connected to the central processing unit (47). The central processing unit (47) is connected to the display component (48), the alarm component (49), and the control component (50).

7. The automatic assembly and Z-crimping circulation device for indwelling needle guidewires according to claim 6, characterized in that: The outputs of the feed detection component (42), inner and outer ring assembly detection component (43), pull tube assembly detection component (44) and Z-press detection component (45) are all connected to the input of the central processing unit (47) through the communication component (46). The output of the central processing unit (47) is connected to the input of the display component (48), alarm component (49) and control component (50).

8. The method of using an automatic assembly and Z-crimping circulation device for indwelling needle guidewires, characterized in that: Specifically, the following steps are included: S1: Loading the indwelling needle: The indwelling needle to be assembled is clamped in the locking groove (24), fixed on the tray fixture (23) by the indwelling needle bracket (22), and conveyed forward on the conveyor seat (6); S2: Inner and outer ring assembly: When the tray fixture (23) moves forward to the position of the inner and outer ring assembly mechanism (11), the inner and outer rings on the inner and outer ring unloading rack (17) automatically fall down and are clamped and rotated by the first rotary clamping assembly (32). After rotation, the first assembly clamp (19) clamps the inner and outer rings and presses them down to assemble them at the indwelling needle. S3: Pull-out tube assembly: After the inner and outer rings are assembled, the tray fixture (23) continues to be transported forward to the pull-out tube assembly mechanism (12). The pull-out tube on the pull-out tube unloading rack (30) automatically falls down and is clamped and rotated by the second rotary clamping assembly (27). After rotation, the second assembly clamp (29) clamps the pull-out tube and presses it down to assemble it to the indwelling needle. S4: Z-pressure positioning: After the tube is assembled, the tray fixture (23) continues to be conveyed forward to the Z-pressure positioning mechanism (13). The translation drive component (37) drives the clamping component (36) to translate. The clamping component (36) clamps the position of the indwelling needle. The pressing component (34) and the Z-pressure component (35) cooperate to press down for Z-pressure positioning, and finally discharge the material.

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