An automatic assembly production line for internal fistula needles

Abstract

This invention relates to the field of medical device technology and provides an automated assembly production line for arteriovenous fistula needles. The production line includes a workbench equipped with a steel needle seat assembly device and a rotating wing cap assembly device. These two devices are connected via a siliconization heating transfer station. The steel needle seat assembly device includes a steel needle assembly station where a needle-picking lifting cylinder and a sliding feeding plate automatically feed steel needles from a storage bin. The rotating wing cap assembly device includes a rotating wing feeding station where a rotating wing picking lifting cylinder and a rotating wing translation cylinder feed materials onto the rotating wing. The siliconization heating transfer station includes a transfer feeding module, which transfers the assembled semi-finished products via a conveyor line. This integrated assembly and processing of the arteriovenous fistula needle, needle seat, and rotating wing components improves production efficiency.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an automated assembly line for arteriovenous fistula needles. Background Technology

[0002] An arteriovenous fistula (AVF) is a connector between an arteriovenous fistula and a hemodialysis tubing. Through the AVF and the dialysis tubing connected to it, the blood of a patient with kidney failure is introduced into the hemodialysis device for dialysis and then returned to the patient's body to filter out impurities.

[0003] Current arteriovenous fistula (AVF) needle assembly is typically completed by workers using simple tooling, resulting in low levels of automation. Due to the sharp needle tip and the unique shape of the rotating wing structure used in assembly, manual assembly is complex and technically challenging. Furthermore, the assembly process involves printing, gluing, and silicon curing, requiring multiple workers using different tooling. The transfer processes between steps are cumbersome, leading to low overall production efficiency and high dependence on workers. Human factors significantly impact product quality, making overall quality control difficult. In addition, the sharp needle tip of the AVF needle poses a high risk of worker injury during manual assembly, particularly during needle insertion, which can easily result in hand injuries and significant safety hazards. Summary of the Invention

[0004] Therefore, the purpose of this invention is to provide an automated assembly line for arteriovenous fistula needles to address the shortcomings of existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automated assembly line for arteriovenous fistula needles includes a workbench, characterized in that the workbench is provided with a steel needle seat assembly device and a rotary wing cap assembly device, the steel needle seat assembly device and the rotary wing cap assembly device being connected to each other via a siliconization heating transfer station.

[0007] The steel needle assembly device includes a steel needle assembly station, which includes a steel needle storage bin and a needle lifting cylinder that cooperate with each other. The steel needle storage bin completes the automated feeding and assembly of steel needles through a needle picking lifting cylinder and a sliding feeding plate.

[0008] The rotary wing cap assembly device includes a rotary wing loading station, which includes a rotary wing loading vibratory motor. The rotary wing component on the rotary wing loading vibratory motor completes the loading process through a rotary wing material lifting cylinder and a rotary wing translation electric cylinder.

[0009] The siliconization heating transfer station includes a heating box and a conveyor line. The two ends of the conveyor line are respectively equipped with transfer feeding modules. The two transfer feeding modules are respectively connected to the discharge position of the steel needle seat assembly device and the loading position of the rotary wing cap assembly device.

[0010] As a further improvement of the present invention, the steel needle assembly device includes a first fixed plate, and a first transport turntable connected to a first turntable clamp is provided between the first fixed plate and the worktable. The worktable and the first fixed plate are provided with a needle feeding station, a steel needle assembly station, an adhesive coating and light curing station, a first marking printing and inspection station, a second marking printing and inspection station, a steel needle siliconization and light curing station, a pre-start inspection station and an inspection unloading station in sequence along the running direction of the first transport turntable.

[0011] The rotary wing cap assembly device includes a second fixed plate. A second transport turntable connected to a second turntable clamp is provided between the second fixed plate and the worktable. The worktable and the second fixed plate are arranged sequentially along the running direction of the second transport turntable, including a rotary wing loading station, a rotary wing inspection station, a steel needle siliconization station, a needle tip visual inspection station, a cap assembly station, a cap inspection and pressing station, and a finished product unloading station.

[0012] As a further improvement of the present invention, the transfer feeding module is connected to the steel needle seat assembly device between the steel needle siliconization and photocuring station and the pre-start inspection station, and the transfer feeding module is connected to the rotary wing cap assembly device between the rotary wing inspection station and the steel needle siliconization station.

[0013] As a further improvement of the present invention, the needle holder loading station includes a needle holder picking module and a needle holder feeding module;

[0014] The needle seat feeding module includes a needle seat feeding vibratory motor and a needle seat translation cylinder mounted on the worktable. The needle seat feeding vibratory motor is connected to a needle seat feeding track. The needle seat translation cylinder is connected to a distribution plate that engages with the end of the needle seat feeding track. The distribution plate is connected to a needle seat detection sensor.

[0015] The needle seat feeding module includes a needle seat lifting electric cylinder installed on the workbench, a needle seat rotating cylinder on the needle seat lifting electric cylinder, a needle seat gripper cylinder on the needle seat rotating cylinder, and a needle seat gripper for gripping and transferring needle seats connected to the needle seat gripper cylinder.

[0016] As a further improvement of the present invention, the steel needle assembly station includes a steel needle picking module and a steel needle feeding module.

[0017] The steel needle picking module includes a steel needle picking bracket and a needle picking lifting cylinder installed on the workbench. The steel needle picking bracket is equipped with a steel needle storage bin and a steel needle detection sensor. A needle separating lifting cylinder is provided below the steel needle storage bin. A steel needle separating plate is provided on the needle separating lifting cylinder to cooperate with the steel needle storage bin. A needle picking translation cylinder is provided on the needle picking lifting cylinder. A needle picking bracket is connected to the needle picking bracket. A needle placement groove for accommodating steel needles is provided at the end of the needle picking bracket.

[0018] The steel needle feeding module includes a feeding main board with its two ends fixed to the worktable and the first fixed plate, respectively. A sliding feeding plate is slidably connected to the feeding main board. A guide lifting cylinder is installed on the sliding feeding plate. A swing cylinder is connected to the lower end of the guide lifting cylinder. A finger clamping cylinder connected to the steel needle clamping finger is provided on the swing cylinder. A push cylinder that cooperates with the sliding feeding plate is provided on the feeding main board. A buffer is provided at the end of the sliding stroke of the sliding feeding plate.

[0019] As a further improvement of the present invention, the pre-start inspection station includes an inspection stand, on which a fixture detection sensor is provided. The fixture detection sensor is used to detect whether there is a pin seat on the first turntable fixture before the machine is started.

[0020] As a further improvement of the present invention, the rotary wing loading station includes a rotary wing material handling module and a rotary wing material feeding module;

[0021] The rotary wing material handling module includes a rotary wing feeding vibrator, a rotary wing material handling lifting cylinder mounted on the worktable, and a rotary wing material handling bracket. The rotary wing feeding vibrator is equipped with a rotary wing feeding track. An assembly plate is connected to the rotary wing material handling lifting cylinder. The assembly plate is equipped with a baffle plate, a rotary wing distribution plate, and a rotary wing pushing cylinder. The rotary wing distribution plate is equipped with a distribution interface that cooperates with the rotary wing feeding track. A pushing plate that cooperates with the rotary wing distribution plate is connected to the rotary wing pushing cylinder. A rotary wing detection sensor is provided on the pushing plate. A rotary wing material handling translation cylinder is mounted on the rotary wing material handling bracket. A material handling translation bracket is connected to the rotary wing material handling translation cylinder. The material handling translation bracket is equipped with a positioning shaft and an auxiliary shaft for fixing the rotary wing material handling.

[0022] The rotary wing feeding module includes a rotary wing feeding bracket installed on the workbench. A rotary cylinder is installed on the upper end of the rotary wing feeding bracket. A cylinder mounting plate is connected to the rotary cylinder. A rotary wing feeding translation cylinder is connected to the cylinder mounting plate. A rotary wing feeding gripper cylinder is provided on the rotary wing feeding translation cylinder and a rotary wing feeding gripper cylinder connected to the rotary wing feeding gripper.

[0023] As a further improvement of the present invention, the rotary wing detection station includes a detection bracket, on which a detection translation cylinder is mounted, and a detection mounting plate is connected to the detection translation cylinder. The detection mounting plate is provided with a detection sensor and a detection spring pin that cooperate with each other. The detection spring pin detects the presence or absence of the rotary wing by extending and retracting and transmits a signal to the detection sensor.

[0024] As a further improvement of the present invention, the finished product unloading station includes a waste box and a finished product box, and can perform defective product rejection and finished product unloading operations based on the detection results of the needle tip visual inspection station, the cap inspection and the pressing station.

[0025] As a further improvement of the present invention, the siliconization heating transfer station includes a transfer feeding module. The transfer feeding module, which is connected to the steel needle seat assembly device, transports the assembled steel needle seat to the transfer feeding module, which is connected to the rotary wing cap assembly device, via a conveyor line. A heating box is provided above the conveyor line.

[0026] The conveyor line includes a conveying channel and a recycling channel. The conveyor line is equipped with a transfer block for the transfer and assembly of steel needle seats. The end of the conveyor line is equipped with a transfer lifting cylinder that cooperates with the conveying channel and the recycling channel respectively. A transfer block positioning cylinder is installed on the transfer lifting cylinder at the end of the conveying channel stroke, and a transfer block positioning cylinder is installed on the transfer lifting cylinder at the end of the recycling channel stroke.

[0027] The transfer feeding module includes a transfer feeding bracket, which is equipped with a feeding lifting electric cylinder, a transfer pushing cylinder, and a material channel baffle. The feeding lifting electric cylinder is equipped with a floating joint, which is connected to a cylinder fixing plate through a connecting column. A feeding rotary cylinder is installed on the cylinder fixing plate, and a feeding clamping finger cylinder is provided on the feeding rotary cylinder. A pushing block for pushing the transfer block to switch the material channel is connected to the transfer pushing cylinder. The material channel baffle cooperates with the conveyor line port.

[0028] The beneficial effects of this invention are:

[0029] 1. This invention provides an automated assembly production line for arteriovenous fistula needles, which realizes the integrated assembly and processing of arteriovenous fistula needle steel needles, needle seats, and rotating wing components. The device has a high degree of automation, the human factor has little impact on the assembly process, and the operation process is simple. The flow between each process is rapid, which greatly improves the production efficiency and product quality of arteriovenous fistula needles.

[0030] 2. This invention uses a steel needle assembly station to replace manual labor for feeding and assembling arteriovenous fistula needles. In the steel needle assembly station, a steel needle distribution plate and a steel needle storage bin are used to pick up the needles. The needle picking bracket and the needle picking component on the sliding feeding plate are used to complete the feeding and assembly of the steel needles. The station is fully automated, with high assembly efficiency and no need for manual intervention, thus ensuring the personal safety of workers.

[0031] 3. This invention employs a rotary wing loading station for the loading and installation of rotary wing components. The rotary wing loading station uses a rotary wing loading and lifting cylinder module with a material distribution plate and a rotary wing translation electric cylinder with a positioning shaft and an auxiliary shaft. Through the cooperation of the material distribution interface on the material distribution plate and the positioning shaft and auxiliary shaft, the automated loading and assembly operation of special structure rotary wing materials is completed. The process is simple and improves the product assembly and production efficiency.

[0032] 4. This invention employs a siliconization heating transfer station to feed the semi-finished steel needle and needle seat assembly to the rotary wing loading and processing station. The siliconization heating transfer station uses a conveying channel and a recycling channel equipped with a transfer block to continuously feed the semi-finished steel needle and needle seat assembly. By setting up a heating box, the siliconization heating operation is completed during the feeding process, thus completing the connection between the steel needle and needle seat assembly device and the rotary wing cap assembly device. This simplifies the assembly process and improves the product assembly production efficiency. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Appendix Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0035] Appendix Figure 2 This is a schematic diagram of the needle holder feeding station structure of the present invention.

[0036] Appendix Figure 3 This is a schematic diagram of the steel needle assembly station structure of the present invention.

[0037] Appendix Figure 4 This is a schematic diagram of the pre-start inspection station structure of the present invention.

[0038] Appendix Figure 5 This is a schematic diagram of the rotating wing loading station structure of the present invention.

[0039] Appendix Figure 6 This is a schematic diagram of the rotary wing loading and unloading module of the present invention.

[0040] Appendix Figure 7 This is a schematic diagram of the rotary wing feeding module at the rotary wing loading station of the present invention.

[0041] Appendix Figure 8 This is a schematic diagram of the rotating wing inspection station structure of the present invention.

[0042] Appendix Figure 9 This is a schematic diagram of the finished product unloading station structure of the present invention.

[0043] Appendix Figure 10 This is a schematic diagram of the external structure of the siliconization heating transfer station of the present invention.

[0044] Appendix Figure 11 This is a schematic diagram of the internal structure of the siliconization heating transfer station of the present invention.

[0045] In the diagram: 1 is the workbench, 2 is the first fixed plate, 3 is the first transport turntable, 4 is the first turntable fixture, 5 is the needle holder loading station, 501 is the needle holder loading direct vibration, 502 is the needle holder loading track, 503 is the needle holder translation cylinder, 504 is the material distribution plate, 505 is the needle holder detection sensor, 506 is the needle holder lifting cylinder, 507 is the needle holder rotation cylinder, 508 is the needle holder gripper cylinder, 509 is the needle holder gripper, 6 is the steel needle assembly station, 601 is the steel needle picking bracket, 602 is the steel needle storage bin, 603 is the steel needle detection sensor, 604 is the needle separating lifting cylinder, 605 is the steel needle distribution plate, 606 is the needle picking lifting cylinder, 607 is the needle picking translation cylinder, 608 is the needle picking bracket, 609 is the feeding main board, and 610 is the sliding feeder. Plate, 611 is a guide lifting cylinder, 612 is a swing cylinder, 613 is a finger clamping cylinder, 614 is a steel needle finger clamp, 615 is a pushing cylinder, 616 is a buffer, 7 is a glue application and light curing station, 8 is a first marking printing and inspection station, 9 is a second marking printing and inspection station, 10 is a steel needle siliconization and light curing station, 11 is a pre-start inspection station, 1101 is an inspection upright plate, 1102 is a fixture detection sensor, 12 is an inspection unloading station, 13 is a second fixed plate, 14 is a second transport turntable, 15 is a rotary wing loading station, 1501 is a rotary wing loading direct vibration, 1502 is a rotary wing loading track, 1503 is a rotary wing material picking lifting cylinder, 1504 is an assembly plate, 1505 is a baffle plate, 1506 is a rotary wing separator. Material plate, 1507 is a rotary vane pusher cylinder, 1508 is a pusher plate, 1509 is a rotary vane detection sensor, 1510 is a rotary vane picking bracket, 1511 is a rotary vane picking and translating electric cylinder, 1512 is a picking and translating bracket, 1513 is a positioning axis, 1514 is an auxiliary axis, 1515 is a rotary vane feeding bracket, 1516 is a rotary cylinder, 1517 is a cylinder mounting plate, 1518 is a rotary vane feeding and translating cylinder, 1519 is a rotary vane feeding gripper cylinder, 1520 is a rotary vane feeding gripper, 16 is a rotary vane detection station, 1601 is a detection bracket, 1602 is a detection translating cylinder, 1603 is a detection mounting plate, 1604 is a detection sensor, 1605 is a detection spring pin, 17 is a steel needle silicon chemical station. 18 is the needle tip visual inspection station; 19 is the cap assembly station; 20 is the cap inspection and clamping station; 21 is the finished product unloading station; 2101 is the waste box; 2102 is the finished product box; 22 is the siliconization heating transfer station; 2201 is the heating box; 2202 is the conveyor line; 2203 is the conveying channel; 2204 is the recycling channel; 2205 is the transfer lifting cylinder; 2206 is the transfer block positioning cylinder; 2207 is the transfer loading bracket; 2208 is the loading lifting electric cylinder; 2209 is the floating joint; 2210 is the connecting column; 2211 is the cylinder fixing plate; 2212 is the loading rotary cylinder; 2213 is the loading finger clamping cylinder; 2214 has loading fingers; 2215 is the transfer pushing cylinder; 2216 is the pushing block.2217 is the material channel baffle, 2218 is the transfer block, and 23 is the second turntable clamp. Detailed Implementation

[0046] The technical solutions in the embodiments of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0047] like Figure 1 As shown, an automated assembly line for arteriovenous fistula needles includes a workbench 1. The workbench 1 is characterized by having a steel needle seat assembly device and a rotating wing cap assembly device. The steel needle seat assembly device and the rotating wing cap assembly device are connected to each other via a siliconization heating transfer station 22.

[0048] The steel needle assembly device includes a steel needle assembly station 6. The steel needle assembly station 6 includes a steel needle storage bin 602 and a needle lifting cylinder 604 that cooperate with each other. The steel needle storage bin 602 completes the automated feeding and assembly of steel needles through a needle picking lifting cylinder 606 and a sliding feeding plate 610.

[0049] The rotating wing cap assembly device includes a rotating wing loading station 15, which includes a rotating wing loading direct vibrator 1501. The rotating wing components on the rotating wing loading direct vibrator 1501 complete the loading process through a rotating wing material lifting cylinder 1503 and a rotating wing translation electric cylinder 1511.

[0050] The siliconization heating transfer station 22 includes a heating box 2201 and a conveyor line 2202. The two ends of the conveyor line 2202 are respectively provided with transfer feeding modules. The two transfer feeding modules are respectively connected to the discharge position of the steel needle seat assembly device and the loading position of the rotary wing cap assembly device.

[0051] In a specific embodiment, the steel needle assembly device further includes a first fixed plate 2, and a first transport turntable 3 connected to a first turntable clamp 4 is provided between the first fixed plate 2 and the worktable 1. Along the running direction of the first transport turntable 3, the worktable 1 and the first fixed plate 2 are provided with a needle loading station 5, a steel needle assembly station 6, an adhesive application and light curing station 7, a first marking printing and inspection station 8, a second marking printing and inspection station 9, a steel needle siliconization and light curing station 10, a pre-start inspection station 11, and an inspection and unloading station 12.

[0052] The rotary wing cap assembly device includes a second fixed plate 13. A second transport turntable 14 connected to a second turntable clamp 23 is provided between the second fixed plate 13 and the worktable 1. The worktable 1 and the second fixed plate 13 are provided with a rotary wing loading station 15, a rotary wing inspection station 16, a steel needle siliconization station 17, a needle tip visual inspection station 18, a cap assembly station 19, a cap inspection and pressing station 20, and a finished product unloading station 21 in sequence along the running direction of the second transport turntable 14.

[0053] In one specific embodiment, the transfer feeding module is further connected to the steel needle seat assembly device between the steel needle siliconization and photocuring station 10 and the pre-start inspection station 11, and the transfer feeding module is connected to the rotary wing cap assembly device between the rotary wing inspection station 16 and the steel needle siliconization station 17.

[0054] The overall workflow of the automated assembly line for arteriovenous fistula needles is as follows: Before the assembly process begins, the production line is started and idled. Before starting, the inspection station 11 checks whether there is a needle seat on the first turntable clamp 4. If a needle seat is present, it is removed from the first turntable clamp 4 after it moves to the inspection and unloading station 12. After the assembly process begins, the needle seat loading station 5 conveys the needle seat to the first turntable clamp 4. The first turntable clamp 4 rotates with the first transport turntable 3 and moves to the subsequent station. When it moves to the needle seat loading station 5, it conveys the steel needle to the first turntable clamp 4 and moves to the steel needle assembly station. At 6 o'clock, the steel needle and needle holder are assembled and fixed. The machine moves to the adhesive application and UV curing station. At 7 o'clock, adhesive is applied to the connection between the steel needle and needle holder, and the adhesive is cured using ultraviolet light. The machine moves to the first marking and inspection station. At 8 o'clock, the marking on the needle holder is printed, and the marking and steel needle angle are visually inspected. The machine moves to the second marking and inspection station. At 9 o'clock, the marking on the needle holder is printed a second time, and the marking and steel needle angle are visually inspected. The machine moves to the steel needle siliconization and UV curing station. At 10 o'clock, the steel needle is dipped in silicone oil and cured with ultraviolet light, and the machine moves to the siliconization heating stage. When the transfer station 22 is at the transfer feeding module position, the assembled steel needle holders are conveyed to the transfer feeding module position on the rotary wing cap assembly device. Steel needle holder assemblies that fail inspection continue to the inspection and unloading station 12 and are removed from the first turntable fixture 4. The rotary wing loading station 15 conveys the rotary wing to the second turntable fixture 23. The second turntable fixture 23 rotates with the second transport turntable 14 to the subsequent station. When it reaches the rotary wing inspection station 16, the presence or absence of material on the rotary wing is detected. When it reaches the siliconization heating transfer station 22 at the transfer feeding module position, the transfer feeding module... The assembled steel needle holder is transferred and installed into the second turntable fixture 23. When it moves to the steel needle silicone coating station 17, the steel needle is subjected to a second silicone oil immersion coating. When it moves to the needle tip visual inspection station 18, the steel needle tip is inspected for damage during the assembly process. When it moves to the cap assembly station 19, the cap is transferred and installed into the second turntable fixture 23. When it moves to the cap inspection and clamping station 20, the pre-assembled cap and needle holder are clamped. When it runs to the finished product unloading station 21, the defective and qualified products after assembly are assigned to different designated positions, and the production line process ends.

[0055] In one specific embodiment, the needle holder loading station 5 further includes a needle holder picking module and a needle holder feeding module;

[0056] The needle seat feeding module includes a needle seat feeding vertical vibration 501 and a needle seat translation cylinder 503 installed on the workbench 1. The needle seat feeding vertical vibration 501 is connected to a needle seat feeding track 502. The needle seat translation cylinder 503 is connected to a material distribution plate 504 that engages with the end of the needle seat feeding track 502. The material distribution plate 504 is connected to a needle seat detection sensor 505.

[0057] The needle seat feeding module includes a needle seat lifting electric cylinder 506 installed on the workbench 1. The needle seat lifting electric cylinder 506 is equipped with a needle seat rotating cylinder 507. The needle seat rotating cylinder 507 is equipped with a needle seat gripper cylinder 508. The needle seat gripper cylinder 508 is connected to a needle seat gripper 509 for gripping and transferring needle seats.

[0058] The specific workflow of needle holder loading station 5 is as follows: After the assembly process of the production line begins, the needle holder loading direct vibration 501 transports the needle holder material to the inside of the distribution plate 504 via the needle holder loading track 502. After the needle holder detection sensor 505 detects that the needle holder material has arrived, the needle holder translation cylinder 503 drives the distribution plate 504 to translate to the needle holder clamping position. The needle holder lifting electric cylinder 506 drives the needle holder gripper 509 to descend to the needle holder clamping position. The needle holder gripper cylinder 508 drives the needle holder gripper 509 to clamp the needle holder. The needle holder translation cylinder 503 resets, the needle holder lifting electric cylinder 506 rises, and the needle holder rotation cylinder 507 drives the needle holder gripper 509 to rotate to a position above the first turntable clamp 4. The needle holder lifting electric cylinder 506 descends, and the needle holder gripper 509 places the needle holder material into the first turntable clamp 4. Then, the needle holder lifting electric cylinder 506 rises, the needle holder rotation cylinder 507 resets, and the process of this station ends.

[0059] In one specific embodiment, the steel needle assembly station 6 further includes a steel needle picking module and a steel needle feeding module.

[0060] The steel needle picking module includes a steel needle picking bracket 601 and a needle picking lifting cylinder 606 installed on the workbench 1. The steel needle picking bracket 601 is equipped with a steel needle storage bin 602 and a steel needle detection sensor 603. A needle separating lifting cylinder 604 is provided below the steel needle storage bin 602. The needle separating lifting cylinder 604 is equipped with a steel needle separating plate 605 that works in conjunction with the steel needle storage bin 602. The needle picking lifting cylinder 606 is equipped with a needle picking translation cylinder 607. A needle picking bracket 608 is connected to the needle picking translation cylinder 607. The end of the needle picking bracket 608 is provided with a needle placement groove for accommodating steel needles.

[0061] The steel needle feeding module includes a feeding main board 609 with its two ends fixed to the workbench 1 and the first fixed plate 2, respectively. A sliding feeding plate 610 is slidably connected to the feeding main board 609. A guide lifting cylinder 611 is installed on the sliding feeding plate 610. A swing cylinder 612 is connected to the lower end of the guide lifting cylinder 611. A finger clamping cylinder 613 connected to a steel needle clamping finger 614 is provided on the swing cylinder 612. A push cylinder 615 that cooperates with the sliding feeding plate 610 is provided on the feeding main board 609. A buffer 616 is provided at the end of the sliding stroke of the sliding feeding plate 610.

[0062] The specific workflow of the steel needle assembly station 6 is as follows: When the first transport turntable 3 moves to this station, the needle lifting cylinder 604 drives the steel needle distribution plate 605 to rise, lifting the steel needle material in the steel needle storage bin 602. The needle retrieval translation cylinder 607 drives the needle retrieval bracket 608 to move below the lifted steel needle material. The needle retrieval lifting cylinder 606 drives the needle retrieval bracket 608 to rise, and the steel needle material is retrieved using the needle placement groove structure. The needle lifting cylinder 604 descends and resets. Then, the push cylinder 615 drives the steel needle clamping finger 614 to move above the needle retrieval bracket 608. The clamping finger cylinder 61... 3. Drive the steel needle gripper 614 to grip the steel needle material. The needle lifting cylinder 606 and the needle translation cylinder 607 reset. The swing cylinder 612 drives the steel needle gripper 614 to rotate 90 degrees. The guide lifting cylinder 611 rises. The push cylinder 615 drives the steel needle gripper 614 to translate to above the first turntable fixture 4. The guide lifting cylinder 611 drives the steel needle gripper 614 to descend to the position of the first turntable fixture 4. The steel needle gripper 614 puts the steel needle into the first turntable fixture 4. The guide lifting cylinder 611 rises and resets. The swing cylinder 612 rotates and resets. The process of this station ends.

[0063] In a specific embodiment, the pre-start inspection station 11 further includes an inspection stand 1101, on which a fixture inspection sensor 1102 is provided. The fixture inspection sensor 1102 is used to detect whether there is a pin seat on the first turntable fixture 4 before the machine is started.

[0064] The specific workflow of the pre-start inspection station 11 is as follows: Before the assembly process begins, the production line is started to run idle. The fixture detection sensor 1102 detects whether there is a pin seat on the first turntable fixture 4 and transmits the detection result to the subsequent station. The process of this station ends.

[0065] In one specific embodiment, the rotary wing loading station 15 further includes a rotary wing material handling module and a rotary wing material feeding module;

[0066] The rotary wing material handling module includes a rotary wing loading vibratory feeder 1501, a rotary wing material handling lifting cylinder 1503 mounted on the workbench 1, and a rotary wing material handling bracket 1510. The rotary wing loading vibratory feeder 1501 is equipped with a rotary wing loading track 1502. An assembly plate 1504 is connected to the rotary wing material handling lifting cylinder 1503. The assembly plate 1504 is equipped with a baffle plate 1505, a rotary wing distribution plate 1506, and a rotary wing pushing cylinder 1507. The rotary wing distribution plate 1506 is connected to the rotary wing loading track 1502. The material distribution interface is matched with 502. The rotary wing pusher cylinder 1507 is connected to a pusher plate 1508 that matches the rotary wing distribution plate 1506. The pusher plate 1508 is equipped with a rotary wing detection sensor 1509. The rotary wing picking bracket 1510 is equipped with a rotary wing picking translation electric cylinder 1511. The rotary wing picking translation electric cylinder 1511 is connected to a picking translation bracket 1512. The picking translation bracket 1512 is equipped with a positioning shaft 1513 and an auxiliary shaft 1514 for fixing the rotary wing picking material.

[0067] The rotary wing feeding module includes a rotary wing feeding bracket 1515 installed on the workbench 1. A rotary cylinder 1516 is installed on the upper end of the rotary wing feeding bracket 1515. A cylinder mounting plate 1517 is connected to the rotary cylinder 1516. A rotary wing feeding translation cylinder 1518 is connected to the cylinder mounting plate 1517. A rotary wing feeding gripper cylinder 1519 is provided on the rotary wing feeding translation cylinder 1518 and connected to a rotary wing feeding gripper 1520.

[0068] The specific workflow of the rotary wing loading station 15 is as follows: After the assembly process of the rotary wing cap assembly device begins, the rotary wing loading vibrator 1501 transports the rotary wing component to the rotary wing distribution plate 1506 via the rotary wing loading track 1502. After the rotary wing detection sensor 1509 detects that the rotary wing component is in place, the rotary wing picking lifting cylinder 1503 drives the rotary wing distribution plate 1506 to rise to the picking position. The rotary wing picking translation cylinder 1511 drives the positioning shaft 1513 and auxiliary shaft 1514 to translate and combine with the rotary wing component. The rotary wing pushing cylinder 1507 drives the rotary wing distribution plate 1506 to translate and retract. The rotary wing picking lifting cylinder 1503 descends and resets, the rotary wing pushing cylinder 1507 translates and resets, and the rotary wing picking level... The electric transfer cylinder 1511 moves the rotary wing component to the transfer position. The rotary wing feeding transfer cylinder 1518 moves the rotary wing feeding gripper 1520 to the transfer position. The rotary wing feeding gripper cylinder 1519 drives the rotary wing feeding gripper 1520 to grip the rotary wing component. Then, the rotary wing picking transfer electric cylinder 1511 moves back to its original position. The rotary cylinder 1516 moves the rotary wing feeding gripper 1520 to rotate 90 degrees. The rotary wing feeding transfer cylinder 1518 moves the rotary wing feeding gripper 1520 down to above the second transport fixture 23. The rotary wing feeding gripper 1520 places the rotary wing component into the second transport fixture 23. The rotary cylinder 1516 rotates back to its original position. The rotary wing feeding transfer cylinder 1518 moves back to its original position. The process of this station ends.

[0069] In a specific embodiment, the rotary wing detection station 16 further includes a detection bracket 1601, on which a detection translation cylinder 1602 is mounted. A detection mounting plate 1603 is connected to the detection translation cylinder 1602. The detection mounting plate 1603 is provided with a detection sensor 1604 and a detection spring pin 1605 that cooperate with each other. The detection spring pin 1605 detects the presence or absence of the rotary wing by extending and retracting and transmits a signal to the detection sensor 1604.

[0070] The specific workflow of the rotary wing inspection station 16 is as follows: When the second transport turntable 14 moves to this station, the inspection translation cylinder 1602 drives the measuring spring pin 1605 to move into the second transport fixture 23 to perform rotary wing material inspection. When no material is detected, the equipment stops running and replenishes the material. When material is detected, the equipment continues to run, and the process of this station ends.

[0071] In one specific embodiment, the finished product unloading station 21 further includes a waste box 2101 and a finished product box 2102, which can perform defective product rejection and finished product unloading operations based on the detection results of the needle tip visual inspection station 18, the cap inspection and pressing station 20.

[0072] The specific workflow of the finished product unloading station 21 is as follows: when the second transport turntable 14 moves to this station, based on the detection results of the needle tip visual inspection station 18 and the cap inspection and pressing station 20, the defective products are put into the waste box 2101 through the cooperation of each cylinder, and the finished products are put into the finished product box 2102.

[0073] In a specific embodiment, the siliconization heating transfer station 22 further includes a transfer feeding module. The transfer feeding module, which is connected to the steel needle seat assembly device, transports the assembled steel needle seat to the transfer feeding module connected to the rotary wing cap assembly device via the conveyor line 2202. A heating box 2201 is provided above the conveyor line 2202.

[0074] The conveyor line 2202 includes a conveying channel 2203 and a recycling channel 2204. The conveyor line 2202 is provided with a transfer block 2218 for transferring and assembling steel needle seats. The end of the conveyor line 2202 is provided with a transfer lifting cylinder 2205 that cooperates with the conveying channel 2203 and the recycling channel 2204 respectively. A transfer block positioning cylinder 2206 is installed on the transfer lifting cylinder 2205 at the end of the stroke of the conveying channel 2203. A transfer block positioning cylinder 2206 is installed on the transfer lifting cylinder 2205 at the end of the stroke of the recycling channel 2204.

[0075] The transfer feeding module includes a transfer feeding bracket 2207, which is equipped with a feeding lifting electric cylinder 2208, a transfer pushing cylinder 2215, and a material channel baffle 2217. The feeding lifting electric cylinder 2208 is equipped with a floating joint 2209, which is connected to a cylinder fixing plate 2211 via a connecting column 2210. A feeding rotary cylinder 2212 is installed on the cylinder fixing plate 2211, and a feeding clamping finger cylinder 2213 connected to a feeding clamping finger 2214 is provided on the feeding rotary cylinder 2212. A pushing block 2216 for pushing the transfer block 2218 to switch the material channel is connected to the transfer pushing cylinder 2215. The material channel baffle 2217 cooperates with the port of the conveyor line 2202.

[0076] The specific workflow of the siliconization heating transfer station 22 is as follows: When the first transport turntable 3 moves to this station, the transfer block 2218 moves to the end of the recycling channel 2204. The positioning rod on the transfer block positioning cylinder 2206 extends to fix and limit the transfer block 2218 at the end of the recycling channel 2204. The transfer lifting cylinder 2205 at the end of the recycling channel 2204 and the beginning of the conveying channel 2203 lifts up. The transfer feeding module loading rotary cylinder 2212 at the first transport turntable 3 drives the loading clamp finger 2214 to rotate above the first transport fixture 4. The loading lifting electric cylinder 2208 drives the loading clamp finger 2214 to descend to the position of the first transport fixture 4. The loading clamp finger cylinder 2213 drives the loading clamp finger 2214 to clamp the assembled steel needle seat in the first transport fixture 4. Then the loading lifting electric cylinder 2208 rises, and the loading rotary cylinder... 2212 Rotation reset, the feeding lifting electric cylinder 2208 drives the feeding clamp finger 2214 to descend to the top of the transfer block 2218 inside the transfer block positioning cylinder 2206 at the end of the recycling channel 2204. The feeding clamp finger 2214 puts the assembled semi-finished product into the transfer block 2218. Then the feeding lifting electric cylinder 2208 rises, the transfer block positioning cylinder 2206 retracts back to its original position, and the transfer pushing cylinder 2215 drives the pushing block 2216 to push the transfer block 2218 to the beginning of the conveying channel 2203 and then resets. The transfer lifting cylinder 2205 at the end of the recycling channel 2204 and the beginning of the conveying channel 2203 descends, and the transfer block 2218 moves with the conveying channel 2203. During the movement of the transfer block 2218, the heating box 2201 performs siliconization heating on the assembled steel needle seat inside it. The process of the first three stations of the transport turntable ends.

[0077] When the second transport turntable 23 moves to this station, the transfer block 2218 moves to the end of the conveying channel 2203. The positioning rod on the transfer block positioning cylinder 2206 extends to fix and limit the transfer block 2218 at the end of the conveying channel 2203. The transfer lifting cylinder 2205 at the beginning of the recovery channel 2204 and the end of the conveying channel 2203 lifts up. The loading lifting electric cylinder 2208 drives the loading clamp finger 2214 to descend to the position of the transfer block 2218 inside the transfer block positioning cylinder 2206 at the end of the conveying channel 2203. The loading clamp finger cylinder 2213 drives the loading clamp finger 2214 to clamp the assembled steel needle seat inside the transfer block 2218. Then the loading lifting electric cylinder 2208 rises, and the transfer block positioning cylinder 2206 retracts back to its original position. The pusher cylinder 2215 drives the pusher block 2216 to push the transfer block 2218 to the beginning of the recycling channel 2204 and then resets. The transfer lifting cylinder 2205 at the end of the conveying channel 2203 and the beginning of the recycling channel 2204 descends, and the transfer block 2218 moves with the recycling channel 2204. The loading rotary cylinder 2212 drives the loading clamp finger 2214 to rotate above the second transport fixture 23. The loading lifting electric cylinder 2208 drives the loading clamp finger 2214 to descend to the position of the second transport fixture 23. The loading clamp finger 2214 puts the assembled steel needle seat into the second transport fixture 23. Then the loading rotary cylinder 2212 rotates and resets, and the loading lifting electric cylinder 2208 rises and resets. The process at the second transport fixture 23 ends.

[0078] It is understood that the above specific description of the present invention is only for illustrating the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of the present invention.

[0079] It should also be noted that, in this document, relational terms such as "first" and "second" 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..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An automated assembly line for internal fistula needles, comprising a worktable (1), characterized in that, The workbench (1) is provided with a steel needle needle holder assembly device and a rotating wing cap assembly device, and the steel needle needle holder assembly device and the rotating wing cap assembly device are connected through a siliconization heating transfer station (22); The steel needle needle holder assembly device comprises a first fixed disc (2), a first carrying turntable (3) connected with a first turntable clamp (4) is arranged between the first fixed disc (2) and the workbench (1), and a needle holder feeding station (5), a steel needle assembly station (6), a glue coating and photocuring station (7), a first mark printing and detection station (8), a second mark printing and detection station (9), a steel needle siliconization and photocuring station (10), a pre-starting detection station (11) and a detection discharging station (12) are sequentially arranged on the workbench (1) and the first fixed disc (2) along the running direction of the first carrying turntable (3); The steel needle assembly station (6) comprises a steel needle storage bin (602) and a needle separating lifting cylinder (604) matched with each other, and the steel needle storage bin (602) completes automatic steel needle feeding assembly through a needle taking lifting cylinder (606) and a sliding feeding plate (610); The rotating wing cap assembly device comprises a rotating wing feeding station (15), the rotating wing feeding station (15) comprises a rotating wing feeding straight shock (1501), and rotating wing parts on the rotating wing feeding straight shock (1501) complete a feeding process through a rotating wing taking lifting cylinder (1503) and a rotating wing translation electric cylinder (1511); The siliconization heating transfer station (22) comprises a heating box (2201) and a conveying line (2202), and the conveying line (2202) is respectively provided with a transfer feeding module at both ends, and the two transfer feeding modules are respectively connected to a discharging position of the steel needle needle holder assembly device and a feeding position of the rotating wing cap assembly device.

2. The automated internal fistula needle assembly line of claim 1, wherein, The rotating wing cap assembly device comprises a second fixed disc (13), a second carrying turntable (14) connected with a second turntable clamp (23) is arranged between the second fixed disc (13) and the workbench (1), and a rotating wing feeding station (15), a rotating wing detection station (16), a steel needle siliconization station (17), a needle tip visual detection station (18), a cap assembly station (19), a cap detection and pressing station (20) and a finished product discharging station (21) are sequentially arranged on the workbench (1) and the second fixed disc (13) along the running direction of the second carrying turntable (14).

3. The automated internal fistula needle assembly line of claim 2, wherein, The transfer feeding module is connected between the steel needle siliconization and photocuring station (10) and the pre-starting detection station (11) of the steel needle needle holder assembly device, and the transfer feeding module is connected between the rotating wing detection station (16) and the steel needle siliconization station (17) of the rotating wing cap assembly device.

4. The automated internal fistula needle assembly line of claim 2, wherein, The needle holder feeding station (5) comprises a needle holder taking module and a needle holder feeding module; The needle holder taking module comprises a needle holder feeding straight shock (501) and a needle holder translation air cylinder (503) installed on the workbench (1), the needle holder feeding straight shock (501) is connected with a needle holder feeding track (502) at the top, the needle holder translation air cylinder (503) is connected with a distribution plate (504) which is connected with the end of the needle holder feeding track (502), the distribution plate (504) is connected with a needle holder detection sensor (505); The needle holder feeding module comprises a needle holder lifting electric cylinder (506) installed on the workbench (1), the needle holder lifting electric cylinder (506) is provided with a needle holder rotating air cylinder (507), the needle holder rotating air cylinder (507) is provided with a needle holder clamping jaw air cylinder (508), the needle holder clamping jaw air cylinder (508) is connected with a needle holder clamping jaw (509) for clamping and transferring the needle holder.

5. The automated internal fistula needle assembly line of claim 1 or 2, wherein, The steel needle assembly station (6) comprises a steel needle taking module and a steel needle feeding module, The steel needle taking module comprises a steel needle taking support (601) and a needle taking lifting air cylinder (606) installed on the workbench (1), the steel needle taking support (601) is installed with a steel needle storage bin (602) and a steel needle detection sensor (603), the steel needle storage bin (602) is provided below with a needle distribution lifting air cylinder (604), the needle distribution lifting air cylinder (604) is provided with a steel needle distribution plate (605) used in cooperation with the steel needle storage bin (602), the needle taking lifting air cylinder (606) is provided with a needle taking translation air cylinder (607), the needle taking translation air cylinder (607) is connected with a needle taking support (608), the end of the needle taking support (608) is provided with a needle placing groove for accommodating the steel needle; The steel needle feeding module comprises a feeding main plate (609) fixed at both ends of the workbench (1) and the first fixed disc (2), the feeding main plate (609) is slidably connected with a sliding feeding plate (610), the sliding feeding plate (610) is installed with a guide lifting air cylinder (611), the guide lifting air cylinder (611) is connected at the lower end with a swing cylinder (612), the swing cylinder (612) is provided with a clamping finger air cylinder (613) connected with a steel needle clamping finger (614), the feeding main plate (609) is provided with a pushing air cylinder (615) matched with the sliding feeding plate (610), and the end of the sliding stroke of the sliding feeding plate (610) is provided with a buffer (616).

6. The automated internal fistula needle assembly line of claim 2, wherein, The pre-starting detection station (11) comprises a detection vertical plate (1101), the detection vertical plate (1101) is provided with a clamp detection sensor (1102), and the clamp detection sensor (1102) is used for detecting whether there is a needle holder on the first rotary disc clamp (4) before starting.

7. The automated internal fistula needle assembly line of claim 1 or 2, wherein, The rotary wing feeding station (15) comprises a rotary wing taking module and a rotary wing feeding module; The rotary wing taking module comprises a rotary wing feeding straight shock (1501) and a rotary wing taking lifting cylinder (1503) and a rotary wing taking support (1510) installed on the workbench (1), the rotary wing feeding straight shock (1501) is provided with a rotary wing feeding track (1502) thereon, the rotary wing taking lifting cylinder (1503) is connected with an assembly plate (1504) thereon, the assembly plate (1504) is provided with a material blocking plate (1505), a rotary wing material distributing plate (1506) and a rotary wing material pushing cylinder (1507) thereon, the rotary wing material distributing plate (1506) is provided with a material distributing interface matched with the rotary wing feeding track (1502) thereon, the rotary wing material pushing cylinder (1507) is connected with a material pushing plate (1508) matched with the rotary wing material distributing plate (1506) thereon, the material pushing plate (1508) is provided with a rotary wing detection sensor (1509) thereon, the rotary wing taking support (1510) is installed with a rotary wing taking translation electric cylinder (1511) thereon, the rotary wing taking translation electric cylinder (1511) is connected with a taking translation support (1512) thereon, the taking translation support (1512) is provided with a positioning shaft (1513) and an auxiliary shaft (1514) for fixing the rotary wing taking; The rotary wing feeding module comprises a rotary wing feeding support (1515) installed on the workbench (1), the rotary wing feeding support (1515) is installed with a rotary cylinder (1516) at the upper end, the rotary cylinder (1516) is connected with a cylinder installation plate (1517), the cylinder installation plate (1517) is connected with a rotary wing feeding translation cylinder (1518), the rotary wing feeding translation cylinder (1518) is provided with a rotary wing feeding clamping jaw cylinder (1519) connected with a rotary wing feeding clamping jaw (1520).

8. The automated internal fistula needle assembly line of claim 2, wherein, The rotary wing detection station (16) comprises a detection support (1601), the detection support (1601) is installed with a detection translation cylinder (1602), the detection translation cylinder (1602) is connected with a detection installation plate (1603), the detection installation plate (1603) is provided with a detection sensor (1604) and a detection spring pin (1605) matched with each other, the detection spring pin (1605) detects the presence or absence of the rotary wing through extension and contraction and transmits a signal to the detection sensor (1604).

9. The automated internal fistula needle assembly line of claim 2, wherein, The finished product discharging station (21) comprises a waste box (2101) and a finished product box (2102), and the finished product discharging station (21) can perform defective product rejection and finished product discharging operation according to the detection results of the needle tip visual detection station (18) and the cap detection and pressing station (20).

10. The automated internal fistula needle assembly line of claim 1 or 3, wherein, The siliconized heating transfer station (22) comprises a transfer feeding module, the transfer feeding module combined with the steel needle holder assembly device is used for conveying the assembled steel needle holder to the transfer feeding module combined with the rotary wing cap assembly device through a conveying line (2202), and a heating box (2201) is arranged above the conveying line (2202); The conveying line (2202) includes a conveying channel (2203) and a recycling channel (2204), the conveying line (2202) is provided with an adapter block (2218) for the flow transfer of the completed steel needle needle holder, the conveying line (2202) is provided with an adapter lifting cylinder (2205) matched with the conveying channel (2203) and the recycling channel (2204) respectively at the end, the adapter lifting cylinder (2205) at the end of the stroke of the conveying channel (2203) is provided with an adapter block positioning cylinder (2206), and the adapter lifting cylinder (2205) at the end of the stroke of the recycling channel (2204) is provided with an adapter block positioning cylinder (2206); The adapter feeding module includes an adapter feeding support (2207), the adapter feeding support (2207) is provided with a feeding lifting cylinder (2208), an adapter pushing cylinder (2215) and a channel baffle (2217), the feeding lifting cylinder (2208) is provided with a floating joint (2209), the floating joint (2209) is connected with a cylinder fixing plate (2211) through a connecting column (2210), the cylinder fixing plate (2211) is provided with a feeding rotating cylinder (2212), the feeding rotating cylinder (2212) is provided with a feeding clamp finger cylinder (2213) connected with a feeding clamp finger (2214), the adapter pushing cylinder (2215) is connected with a pushing block (2216) for pushing the adapter block (2218) to switch the channel, and the channel baffle (2217) is matched with the port of the conveying line (2202).

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