Upper sheet device of indwelling needle

Abstract

The technical scheme belongs to the technical field of indwelling needle assembling equipment and specifically relates to a steel sheet loading device for indwining needles, which comprises a rack, a loading mechanism installed on the rack, a transfer mechanism installed at the discharging end of the loading mechanism, an opening mechanism installed on the side of the transfer mechanism, a needle loading mechanism installed on the rack and arranged at the lower end of the opening mechanism and the transfer mechanism, and the transfer mechanism comprises a horizontal moving assembly one, a turnover assembly, a steel sheet positioning assembly, a horizontal moving assembly two and a needle positioning assembly. The steel sheet is positioned through cooperation of the loading mechanism and the transfer mechanism, and the steel sheet is reliably opened through cooperation of the transfer mechanism and the opening mechanism, so that the steel sheet is kept in a stable open state during assembly, the problem that the indwining needle body is difficult to pass through the steel sheet due to the failure of the steel sheet to be opened to the position is avoided, the success rate and stability of the indwining needle body are improved, and the production and assembly efficiency is improved.

Description

Technical Field

[0001] This technical solution relates to the field of indwelling needle assembly equipment technology, specifically to a device for attaching a steel plate to an indwelling needle. Background Technology

[0002] To ensure safe use, existing disposable safety indwelling needles generally adopt a single-use structural design, in which the steel sheet is the core component that enables the indwelling needle to be used only once and prevent reuse.

[0003] For example, Chinese patent CN201821854252.0 discloses an anti-needle-puncture dialysis indwelling needle, which uses a steel plate (i.e., an elastic element) to form a closed structure with the blocking part and the flat part at the front end of the steel plate after the indwelling needle body is pulled out, thereby wrapping the tip of the indwelling needle and preventing the indwelling needle body from being extended and used again.

[0004] However, in the actual assembly process of the indwelling needle, the indwelling needle body needs to pass through the steel sheet. This requires that the blocking part and the flat part of the steel sheet be opened to make the steel sheet open so that the needle body can be successfully inserted. Because the steel sheet itself is small in size and has a delicate structure, and the opening action needs to be stable, existing automated equipment is difficult to achieve efficient and reliable feeding and assembly, resulting in a low degree of automation in the assembly of the indwelling needle steel sheet, which affects the overall assembly efficiency and assembly stability. Summary of the Invention

[0005] The purpose of this technical solution is to provide a steel plate mounting device for indwelling needles. By using a transfer mechanism in conjunction with an opening mechanism, the steel plate is positioned and opened, thereby allowing the indwelling needle body to be inserted into the steel plate for assembly. This improves the problems of low automation, poor steel plate positioning accuracy, and low production efficiency in the existing indwelling needle steel plate assembly process.

[0006] The purpose of this technical solution is achieved as follows:

[0007] A device for attaching a steel plate to an indwelling needle, comprising:

[0008] frame;

[0009] A feeding mechanism, which is mounted on the frame, is used to feed steel sheets to a set position;

[0010] A transfer mechanism, installed at the discharge end of the feeding mechanism, is used to remove the steel sheet from the feeding mechanism and transfer the steel sheet to a set position;

[0011] An opening mechanism is installed beside the transfer mechanism to cooperate with the transfer mechanism to open the steel plate so that the indwelling needle body can be inserted into the steel plate;

[0012] A needle loading mechanism is mounted on the frame and installed at the lower end of the opening mechanism and the transfer mechanism. It is used to drive the opening mechanism and the transfer mechanism to move so as to insert the indwelling needle body into the steel plate at the opening mechanism.

[0013] The transfer mechanism includes:

[0014] A transverse component 1 includes a drive unit 1 and a movable base 1, wherein the drive unit 1 is mounted on the frame and drives the movable base 1 to move on the frame;

[0015] A flipping assembly includes a flipping drive and a flipping base, wherein the flipping drive is mounted on the movable base and drives the flipping base to flip on the movable base.

[0016] A steel sheet positioning assembly, which is mounted on the flipping seat, is used to position the steel sheet;

[0017] The second transverse component includes a second driving element and a second movable seat. The second driving element is mounted on the flip seat and drives the second movable seat to move on the flip seat.

[0018] A positioning pin assembly is mounted on the movable base 2, and the front end of the positioning pin assembly can pass through the steel plate positioning assembly to position the steel plate.

[0019] Preferably, the steel sheet positioning assembly includes:

[0020] The steel plate positioning seat has several clearance holes and vacuum suction holes.

[0021] A steel sheet positioning component is installed at the front end of the steel sheet positioning seat, and the steel sheet positioning component is provided with a plurality of steel sheet positioning holes. The steel sheet positioning holes are used for inserting the tail end of the steel sheet for positioning. The steel sheet positioning holes correspond to the clearance holes and are connected to the vacuum suction holes.

[0022] Preferably, the front edge of the steel sheet positioning hole is provided with a guide surface, which is used to guide the steel sheet to be inserted into the steel sheet positioning hole.

[0023] Preferably, the positioning pin assembly includes:

[0024] The positioning pin holder has several mounting slots inside;

[0025] Several positioning pins are slidably disposed in the corresponding mounting slots, and the front end of each positioning pin can pass through the steel plate positioning assembly and be inserted into the steel plate.

[0026] Several elastic elements are installed in corresponding mounting slots, with one end of each elastic element abutting the bottom of the mounting slot and the other end abutting the positioning pin body. The elastic elements are used to make the positioning pin body tend to move toward the steel plate positioning assembly.

[0027] Preferably, the front end of the positioning needle body has a positioning platform, and the middle part of the positioning platform is provided with a positioning cone. The positioning cone is used to be inserted into the body of the indwelling needle, and the positioning platform is used to abut the rear end of the body of the indwelling needle.

[0028] Preferably, the opening mechanism includes:

[0029] A support frame, which is mounted on the frame;

[0030] The first component is opened, which includes an opening drive source and an opening guide seat. The opening drive source is installed on the upper end of the support frame and drives the opening guide seat to slide on the support frame.

[0031] The second opening component includes a second opening drive source and a second opening guide seat. The second opening drive source is installed at the lower end of the support frame and drives the second opening guide seat to slide on the support frame. The first opening component and the second opening component are distributed vertically and are arranged opposite each other on the support frame.

[0032] The second opening guide seat is provided with a number of opening protrusions, and an opening gap is formed between the opening protrusions for placing the steel sheet in the middle.

[0033] Preferably, each of the adjacent ends of the first and second opening guide seats is provided with a guide half-groove. After the first and second opening guide seats abut each other, the two guide half-grooves form an opening guide hole, which is used for the indwelling needle body to pass through and be guided.

[0034] Preferably, the two ends of the open guide hole are respectively provided with guide surface two and guide surface three. Guide surface two is used to guide the end of the positioning needle body of the transfer mechanism to be inserted into the open guide hole, and guide surface three is used to guide the indwelling needle body to be inserted into the open guide hole.

[0035] Preferably, the needle loading mechanism includes a driving component three and a movable seat three. The driving component three is mounted on the frame and drives the movable seat three to move on the frame. The transfer mechanism and the opening mechanism are mounted on the movable seat three.

[0036] Preferably, the feeding mechanism includes:

[0037] A vibratory feeder, which is installed on the side of the frame;

[0038] A feeding track is installed at the discharge end of the vibratory feeder, and the feeding track is provided with several feeding channels for the transfer of steel sheets.

[0039] A detection component, installed above the feeding track, is used to detect the steel sheets in the feeding channel;

[0040] A partition assembly, installed above the feed rail, is inserted into the feed channel to restrict the movement of the steel sheet;

[0041] The vibration of the feeding track allows the tail end of the steel sheet at the discharge end of the feeding track to be inserted into the steel sheet positioning assembly of the transfer mechanism, and the end of the positioning pin assembly to be inserted into the steel sheet.

[0042] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0043] 1. This technical solution uses the cooperation of the feeding mechanism and the transfer mechanism to position the steel sheet. Then, the cooperation of the transfer mechanism and the opening mechanism ensures that the steel sheet is reliably opened, ensuring that the steel sheet remains in a stable open state during assembly. This effectively avoids the problem that the indwelling needle body cannot pass through the steel sheet due to insufficient opening of the steel sheet, improves the success rate and stability of the indwelling needle body insertion and assembly, and improves production and assembly efficiency.

[0044] 2. This technical solution uses a steel plate positioning component to initially position the steel plate, and then uses a positioning needle component to perform a secondary precise positioning of the steel plate. At the same time, the positioning needle component can guide and position the end of the indwelling needle body. The multiple positioning structures work together to improve the coaxiality and alignment accuracy of the indwelling needle body when it is inserted into the steel plate, ensuring a stable and reliable insertion process and a high product yield. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of this technical solution.

[0046] Figure 2 This is a schematic diagram of the feeding mechanism in this technical solution.

[0047] Figure 3 This is one of the structural schematic diagrams of the transfer mechanism and opening mechanism in this technical solution.

[0048] Figure 4 This is the second structural schematic diagram of the transfer mechanism and opening mechanism of this technical solution.

[0049] Figure 5 This is a schematic diagram of the transfer mechanism in this technical solution.

[0050] Figure 6 This is a schematic diagram of the mechanism that opens the door to this technical solution.

[0051] Figure 7 This is a cross-sectional view of the technical solution.

[0052] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0053] Figure 9 This is a partial cross-sectional view of the steel plate positioning assembly of this technical solution.

[0054] Figure 10 for Figure 6 Enlarged view of point B in the middle.

[0055] Figure 11 This is a partial cross-sectional view of the steel sheet positioning assembly and opening mechanism of this technical solution.

[0056] Figure 12 This is a cross-sectional view of the positioning pin assembly of this technical solution.

[0057] Figure 13 for Figure 12 Enlarged view of point C in the middle.

[0058] Figure 14 This is a schematic diagram of the steel sheet structure in this technical solution.

[0059] Figure 15 This is a schematic diagram of the structure of the indwelling needle body before the steel plate is passed through.

[0060] Figure 16 This is a schematic diagram of the structure of the indwelling needle body and steel sheet after assembly in this technical solution.

[0061] Reference numerals: 1. Frame;

[0062] 2. Feeding mechanism; 21. Vibratory feeder; 22. Feeding track; 221. Feeding channel; 2211. Detection notch; 2212. Partition clearance notch; 23. Detection assembly; 24. Partition assembly;

[0063] 3. Transfer Mechanism; 31. Lateral Movement Component 1; 311. Drive Component 1; 312. Moving Seat 1; 32. Tilting Component; 321. Tilting Drive Component; 3211. Rack; 3212. Gear; 322. Tilting Seat; 33. Steel Plate Positioning Component; 331. Steel Plate Positioning Seat; 3311. Clearance Hole; 3312. Vacuum Suction Hole; 3313. Guide Surface 4; 3314. Guide Surface 5; 332. Steel Plate Positioning Component; 3321. Steel Plate Positioning Hole; 3322. Guide Surface 1; 34. Lateral Movement Component 2; 341. Drive Component 2; 342. Moving Seat 2; 35. Positioning Pin Assembly; 351. Positioning Pin Seat; 3511. Mounting Slot; 352. Positioning Pin Body; 3521. Positioning Platform; 3522. Positioning Cone; 353. Elastic Component;

[0064] 4. Open the mechanism; 41. Support frame; 42. Open component one; 421. Open drive source one; 422. Open guide seat one; 43. Open component two; 431. Open drive source two; 432. Open guide seat two; 4321. Open the protrusion; 4322. Open the gap; 44. Guide half groove; 441. Open the guide hole; 442. Guide surface two; 443. Guide surface three;

[0065] 5. Needle loading mechanism; 51. Drive component three; 52. Movable base three;

[0066] 100. Indwelling needle body; 200. Steel sheet; 201. Fixing piece; 202. First connecting piece; 203. Second connecting piece; 204. Through hole; 205. Blocking part one; 206. Blocking part two; 207. Avoidance notch. Detailed Implementation

[0067] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0068] Combination Figures 14-16 The steel sheet 200 includes a fixing piece 201, a first connecting piece 202, and a second connecting piece 203. The fixing piece 201 has a through hole 204 in the middle. The first connecting piece 202 and the second connecting piece 203 are connected to opposite sides of the fixing piece 201 respectively. The first connecting piece 202 and the second connecting piece 203 are arranged in an "X" shape. The end of the first connecting piece 202 away from the fixing piece 201 is bent to form a blocking part 1 205. The end of the second connecting piece 203 away from the fixing piece 201 is bent to form a blocking part 206. The middle of the inner side of the first connecting piece 202 and the second connecting piece 203 adjacent to each other is provided with a clearance notch 207 for avoiding the indwelling needle body 100. The tail end of the steel sheet 200 has a fixing piece 201. The middle of the steel sheet 200 has a first connecting piece 202 and a second connecting piece 203 arranged in an "X" shape. The front end of the steel sheet 200 has a blocking part 1 205 and a blocking part 206.

[0069] After the front end of the indwelling needle body 100 passes through the through hole 204 and the fixing piece 201, the first connecting piece 202 and the second connecting piece 203, under their respective elastic deformation forces, cause the first blocking part 205 and the second blocking part 206 to abut against the side wall of the indwelling needle body 100, thereby clamping the indwelling needle body 100.

[0070] When the indwelling needle body 100 is pulled out, even if the front end (i.e. the needle tip) of the indwelling needle body 100 leaves the space between the first blocking part 205 and the second blocking part 206, the first connecting piece 202 and the second connecting piece 203 will cause the first blocking part 205 and the second blocking part 206 to move closer to each other to form a closed structure. The closed structure blocks the front end of the indwelling needle body 100, thereby restricting the front end of the indwelling needle body 100 from passing through the front end of the steel plate 200, and preventing the front end (i.e. the needle tip) of the indwelling needle body 100 from protruding and being reused.

[0071] Combination Figures 1-6 A device for attaching a steel plate to an indwelling needle is used to open the steel plate 200 by separating the first blocking part 205 and the second blocking part 206, thereby allowing the indwelling needle body 100 to pass through and be clamped between the first blocking part 205 and the second blocking part 206, and thus assembling the indwelling needle body 100 and the steel plate 200. The device includes:

[0072] Rack 1;

[0073] The feeding mechanism 2 is installed on the frame 1. The feeding mechanism 2 is used to feed the steel sheet 200 to the set position. The feeding mechanism 2 realizes the sequential and orderly transportation of the steel sheet 200 to the set position, thereby realizing the feeding of the steel sheet 200.

[0074] The transfer mechanism 3 is installed at the discharge end of the feeding mechanism 2. The transfer mechanism 3 is used to take out the steel sheet 200 in the feeding mechanism 2 and transfer the steel sheet 200 to a set position.

[0075] The opening mechanism 4 is installed on the side of the transfer mechanism 3. The opening mechanism 4 is used to cooperate with the transfer mechanism 3 to open the steel plate 200 so that the indwelling needle body 100 can be inserted into the steel plate 200, thereby realizing the assembly between the indwelling needle body 100 and the steel plate 200.

[0076] The needle loading mechanism 5 is mounted on the frame 1 and is installed at the lower end of the opening mechanism 4 and the transfer mechanism 3. The needle loading mechanism 5 is used to drive the opening mechanism 4 and the transfer mechanism 3 to move so as to insert the indwelling needle body 100 into the steel plate 200 at the opening mechanism 4.

[0077] A clamping station is provided on the frame 1 for clamping and fixing the indwelling needle body 100. The clamping station is existing technology and uses a gripper or mechanical claw for clamping and fixing. After the clamping station clamps and fixes the indwelling needle body 100, the needle loading mechanism 5 drives the opening mechanism 4 and the transfer mechanism 3 to approach the indwelling needle body 100 in the clamping station, so that the steel sheet 200 is fitted on the indwelling needle body 100, that is, the rear end of the indwelling needle body 100 passes through the through hole 204, the middle part of the indwelling needle body 100 is placed in the clearance notch 207, and the front end side wall of the indwelling needle body 100 is clamped by the first blocking part 205 and the second blocking part 206; or, the needle loading mechanism 5 is not provided, and the clamping station is used to clamp and drive the indwelling needle body 100 to approach the opening mechanism 4 and the transfer mechanism 3.

[0078] Combination Figure 3 , Figure 5 and Figure 7 The transfer mechanism 3 includes:

[0079] The transverse component 31 includes a drive component 311 and a movable seat 312. The drive component 311 is a cylinder. The drive component 311 is mounted on the frame 1 and drives the movable seat 312 to move on the frame 1. Specifically, the drive component 311 is mounted on the movable seat 52 of the needle loading mechanism 5 and moves on the frame 1 with the movable seat 52. The movable seat 312 is slidably connected to the upper end of the movable seat 52 through a slide rail slider.

[0080] The flipping assembly 32 includes a flipping drive 321 and a flipping seat 322. The flipping drive 321 is mounted on the movable seat 312 and drives the flipping seat 322 to flip on the movable seat 312. The two sides of the flipping seat 322 are rotatably mounted on the movable seat 312 via rotating shafts. The flipping drive 321 is driven by a motor to drive the flipping seat 322 to rotate, or the flipping drive 321 is a cylinder. A rack 3211 is connected to the drive end of the cylinder (referring to the flipping drive 321). A gear 3212 that meshes with the rack 3211 is mounted on the side end of the flipping seat 322. The rack 3211 is driven to rise and fall (move along the length of the rack) by the cylinder to drive the gear 3212 to rotate, thereby realizing that the gear 3212 drives the flipping seat 322 to rotate.

[0081] The steel sheet positioning component 33 is installed on the flipping seat 322. The steel sheet positioning component 33 is used to position and pick up the steel sheet 200 delivered from the discharge end of the feeding mechanism 2, that is, to realize the picking up of the steel sheet 200.

[0082] The second transverse component 34 includes a second driving component 341 and a second movable seat 342. The second driving component 341 is mounted on the flip seat 322 and drives the second movable seat 342 to move on the flip seat 322. The second driving component 341 is a cylinder. The second movable seat 342 is slidably mounted on the flip seat 322 via a slide rail slider.

[0083] The positioning needle assembly 35 is mounted on the movable base 342, and the front end of the positioning needle assembly 35 can pass through the steel plate positioning assembly 33 to position the steel plate 200. After the steel plate positioning assembly 33 initially positions the tail end (i.e., the fixing piece 201) of the steel plate 200, the front end of the positioning needle assembly 35 passes through the steel plate positioning assembly 33 and through the through hole 204 to further position the steel plate 200. At the same time, the positioning needle assembly 35 can be used to dock with the rear end of the indwelling needle body 100 and guide the rear end of the indwelling needle body 100 through the through hole 204.

[0084] The first transverse component 31 drives the steel sheet positioning component 33 to approach the feeding mechanism 2 or the opening mechanism 4. The flipping component 32 drives the steel sheet positioning component 33 to rotate 180° back and forth so that the steel sheet positioning component 33 corresponds to the feeding mechanism 2 or the opening mechanism 4. The second transverse component 34 is used to drive the front end of the positioning pin component 35 to penetrate into the through hole 204 of the steel sheet 200 in the steel sheet positioning component 33 to achieve precise positioning of the steel sheet 200.

[0085] Combination Figure 8 and Figure 9 The steel sheet positioning assembly 33 includes:

[0086] The steel plate positioning seat 331 has several clearance holes 3311 and vacuum suction holes 3312. The clearance holes 3311 are arranged along the length of the steel plate positioning seat 331 and pass through the front and rear ends of the steel plate positioning seat 331. The vacuum suction holes 3312 are connected to a vacuum pump through a pipeline to realize the suction operation. A vacuum nozzle can be installed in the vacuum suction holes 3312 to realize the suction operation.

[0087] A steel sheet positioning component 332 is installed at the front end of the steel sheet positioning seat 331, and the steel sheet positioning component 332 is provided with a plurality of steel sheet positioning holes 3321. The steel sheet positioning holes 3321 are used for the tail end of the steel sheet 200 to be inserted for positioning. The fixing piece 201 is placed in the steel sheet positioning hole 3321 to achieve positioning. The fixing piece 201 and the steel sheet positioning hole 3321 are rectangular structures. The steel sheet positioning hole 3321 corresponds to the clearance hole 3311, and the steel sheet positioning hole 3321 is connected to the corresponding vacuum suction hole 3312. In this technical solution, the clearance hole 3311 and the steel sheet positioning hole 3321 correspond one-to-one, and a vacuum suction hole 3312 is provided on the left and right sides of each clearance hole 3311.

[0088] After the fixing piece 201 is placed in the steel plate positioning hole 3321, the positioning pin assembly 35 passes through the clearance hole 3311 into the through hole 204 to position the fixing piece 201, and the fixing piece 201 is adsorbed in the steel plate positioning hole 3321 through the vacuum suction hole 3312 to prevent the steel plate 200 from shifting or falling off in the steel plate positioning hole 3321.

[0089] The front edge of the steel sheet positioning hole 3321 is provided with a guide surface 3322. The guide surface 3322 makes the diameter of the front end of the steel sheet positioning hole 3321 larger than the diameter of the rear half of the steel sheet positioning hole 3321. The guide surface 3322 is used to guide the steel sheet 200 to be inserted into the steel sheet positioning hole 3321. The rear half of the steel sheet positioning hole 3321 is adapted to the shape of the fixing piece 201 of the steel sheet 200 to achieve the positioning of the fixing piece 201, that is, to achieve the positioning of the steel sheet 200.

[0090] Combination Figure 8 , Figure 12 and Figure 13 The positioning pin assembly 35 includes:

[0091] The positioning pin seat 351 has a plurality of mounting slots 3511 inside. The plurality of mounting slots 3511 are arranged along the length of the positioning pin seat 351 and correspond one-to-one with the clearance holes 3311. The slot openings of the mounting slots 3511 face the steel plate positioning assembly 33.

[0092] A plurality of positioning pins 352 are slidably disposed in the corresponding mounting grooves 3511, and the front end of the positioning pin 352 can pass through the steel plate positioning assembly 33 and be inserted into the through hole 204 of the steel plate 200.

[0093] Several elastic elements 353, which are springs, are installed in the corresponding mounting grooves 3511. One end of each elastic element 353 abuts against the bottom of the mounting groove 3511, and the other end abuts against the positioning pin body 352. The elastic elements 353 are used to make the positioning pin body 352 tend to move toward the steel plate positioning assembly 33. The elastic elements 353 make the positioning pin body 352 move away from the bottom of the mounting groove 3511 and make the front end of the positioning pin body 352 tend to move through the steel plate positioning assembly 33.

[0094] The front end of the positioning needle body 352 has a positioning platform 3521, and the middle part of the positioning platform 3521 is provided with a positioning cone 3522. The positioning cone 3522 is used to be inserted into the rear end of the indwelling needle body 100, and the positioning platform 3521 is used to abut against the rear end of the indwelling needle body 100.

[0095] The inner wall edges at both ends of the clearance hole 3311 are respectively provided with guide surface four 3313 and guide surface five 3314. Guide surface four 3313 is used to guide the end of the positioning needle body 352 to be inserted into the clearance hole 3311, and guide surface five 3314 is used to guide the indwelling needle body 100 to be inserted into the clearance hole 3311.

[0096] Combination Figure 4 , Figure 6 , Figure 7 , Figure 10 and Figure 11 The opening mechanism 4 includes:

[0097] The support frame 41 is mounted on the frame 1; in this technical solution, the support frame 41 is mounted on the movable seat 52 of the needle loading mechanism 5 and moves on the frame 1 with the movable seat 52.

[0098] The opening component 42 includes an opening drive source 421 and an opening guide seat 422. The opening drive source 421 is installed on the upper end of the support frame 41 and drives the opening guide seat 422 to slide on the support frame 41. The opening drive source 421 is a cylinder. The two sides of the opening guide seat 422 are slidably arranged on the support frame 41 through guide rod sleeves.

[0099] The second opening component 43 includes a second opening drive source 431 and a second opening guide seat 432. The second opening drive source 431 is installed at the lower end of the support frame 41 and drives the second opening guide seat 432 to slide on the support frame 41. The second opening drive source 431 is a cylinder, and the two sides of the second opening guide seat 432 are slidably disposed on the support frame 41 through guide rod sleeves. The first opening component 42 and the second opening component 43 are distributed vertically and disposed opposite to each other on the support frame 41. The first opening drive source 421 and the second opening drive source 431 drive the first opening guide seat 422 and the second opening guide seat 432 to move closer to each other or further away from each other.

[0100] The second opening guide seat 432 is provided with a plurality of opening protrusions 4321, and an opening gap 4322 is formed between adjacent opening protrusions 4321 for placing the middle part of the steel sheet 200. That is, the first connecting piece 202 and the second connecting piece 203, which are arranged in an "X" shape, are placed in the opening gap 4322.

[0101] The adjacent ends of the first opening guide seat 422 and the second opening guide seat 432 are each provided with a guide half groove 44. That is, the lower end of the first opening guide seat 422 and the upper end of the second opening guide seat 432 are both provided with guide half grooves 44. After the first opening guide seat 422 and the second opening guide seat 432 approach each other and abut against each other, the two guide half grooves 44 form an opening guide hole 441. The opening guide hole 441 is for the indwelling needle body 100 to pass through and be guided.

[0102] The two ends of the opening guide hole 441 are respectively provided with guide surface 2 442 and guide surface 3 443. Guide surface 2 442 is used to guide the end of the positioning needle body 352 into the opening guide hole 441, and guide surface 3 443 is used to guide the indwelling needle body 100 into the opening guide hole 441.

[0103] The needle loading mechanism 5 includes a driving component 3 51 and a movable seat 3 52. The driving component 3 51 is mounted on the frame 1 and drives the movable seat 3 52 to move on the frame 1. The transfer mechanism 3 and the opening mechanism 4 are mounted on the movable seat 3 52. The driving component 3 51 is a cylinder, and the movable seat 3 52 is slidably mounted on the frame 1 via a slide rail slider.

[0104] Combination Figure 1 and Figure 2 The feeding mechanism 2 includes:

[0105] Vibratory feeder 21 is installed on the side of the frame 1;

[0106] The feeding track 22 is installed at the discharge end of the vibratory feeder 21, and the feeding track 22 is provided with a plurality of feeding channels 221 for conveying steel sheets 200, and the feeding channels 221 are connected to the discharge end of the vibratory feeder 21.

[0107] The detection component 23 is installed above the feeding track 22 and is used to detect the steel sheet 200 in the feeding channel 221. The detection component 23 includes a mounting frame and an industrial camera. The industrial camera is slidably mounted on the mounting frame via a linear slide. The moving direction of the industrial camera is perpendicular to the conveying direction of the feeding channel 221. The feeding channel 221 is provided with a detection notch 2211 for the detection component 23 to perform detection.

[0108] A partition assembly 24 is installed above the feeding track 22 and is used to insert into the feeding channel 221 to restrict the movement of the steel sheet 200. The partition assembly 24 includes a partition drive and a partition rod. The partition drive is installed above the feeding track 22. The drive end of the partition drive is connected to the partition rod and drives the lower end of the partition rod to insert into the feeding channel 221 to restrict the movement of the steel sheet 200 in the feeding channel 221. A partition clearance notch 2212 is provided at the upper end of the feeding channel 221 to allow the lower end of the partition rod to be inserted. When the transfer mechanism 3 takes out and transfers the steel sheet 200 at the discharge end of the feeding channel 221, the partition assembly 24 is used to stop the subsequent steel sheet 200 in the feeding channel 221 from moving forward, so as to prevent the subsequent steel sheet 200 from squeezing the steel sheet 200 taken out by the transfer mechanism 3 during continuous transportation, and to ensure the stability of the transfer mechanism 3 when taking out the steel sheet 200.

[0109] A vibration assembly is installed at the lower end of the feeding track 22. This assembly uses a vibration generator or electromagnetic vibrator to make the feeding track 22 vibrate, driving it to vibrate up and down. Shaking assemblies are installed on both sides of the feeding track 22. These assemblies use cylinders to drive swaying blocks to move and press against the outer walls of both sides of the feeding track 22, thus causing it to sway left and right. Through the vibration and swaying of the feeding track 22, the tail end of the steel sheet 200 at the discharge end of the feeding track 22 can be inserted into the steel sheet positioning assembly 33 of the transfer mechanism 3, and the positioning pin assembly... The end of 35 can be inserted into the steel sheet 200, so that the fixing piece 201 of the steel sheet 200 is inserted into the positioning hole 3321 of the steel sheet, and the front end of the positioning needle body 352 can be accurately inserted into the through hole 204. Because the diameter of the indwelling needle body 100 is small, the through hole 204 is compatible with the indwelling needle body 100. Therefore, in order to ensure that the positioning needle body 352 can be inserted into the through hole 204, the shaking of the feeding track 22 is required to make the positioning needle body 352 inserted into the through hole 204, so as to ensure that the steel sheet 200 can be accurately positioned, thereby ensuring the stability of the subsequent assembly of the steel sheet 200 with the indwelling needle body 100.

[0110] The specific working process of this scheme is as follows: the vibratory feeder 21 transports the steel sheet 200 to the feeding track 22 and transports it sequentially along the feeding channel 221. The detection component 23 detects whether the feeding channel 221 is full to control the feeding or stopping of the vibratory feeder 21. When the steel sheet 200 is transported to the discharge end of the feeding channel 221 and is picked up by the transfer mechanism 3, the isolation component 24 isolates the subsequent steel sheet 200 to prevent the subsequent steel sheet 200 in the feeding channel 221 from squeezing the steel sheet 200 picked up by the transfer mechanism 3 at the beginning. Under the action of the shaking of the feeding track 22 and the guide surface 3322, the fixing plate 201 is placed in the steel sheet positioning hole 3321.

[0111] Subsequently, the positioning needle body 352 moves forward under the drive of the second driving member 341 and is inserted into the clearance hole 3311 under the guidance of the fourth guiding surface 3313 and penetrates into the steel sheet 200 in the steel sheet positioning hole 3321. That is, the front end of the positioning needle body 352 passes through the through hole 204 and abuts against the closed structure formed by the first blocking part 205 and the second blocking part 206 approaching each other. The steel sheet 200 is adsorbed into the steel sheet positioning assembly 33 through the vacuum suction hole 3312.

[0112] Driven component 311 drives the steel sheet positioning assembly 33 and positioning pin assembly 35 to move backward, causing the steel sheet 200 to disengage from the feeding mechanism 2. The flipping assembly 32 flips the steel sheet positioning assembly 33 and positioning pin assembly 35 180° to align with the opening mechanism 4, and the opening guide seats 422 and 432 of the opening mechanism 4 are separated from each other in the open state. At this time, the steel sheet 200 is placed between the opening guide seats 422 and 432. Subsequently, the opening guide seats 422 and 432 of the opening mechanism 4 approach each other and close, so that the middle part of the steel sheet 200 is placed within the opening gap 4322. Driven component 311 drives the steel sheet positioning assembly 33 and positioning pin assembly 35 to approach the opening guide seats 422 and 432. 32, so that the outer middle part of the first connecting piece 202 and the second connecting piece 203 abuts against the edge of the opening protrusion 4321, that is, against the two side walls of the opening gap 4322. The fixing piece 201 moves closer to the opening gap 4322 under the movement of the steel plate positioning assembly 33, so that the "X" shaped cross part gradually approaches the fixing piece 201, so that the first connecting piece 202 and the second connecting piece 203 are both folded towards the fixing piece 201, so that the front ends of the first connecting piece 202 and the second connecting piece 203 move away from each other, thereby making the first blocking part 205 and the second blocking part 206 move away from each other to achieve opening. Then, under the action of the elastic member 353, the positioning pin body 352 moves forward and is inserted into the opening guide hole 441 under the guidance of the second guide surface 442.

[0113] Then, driven by the needle loading mechanism 5, the transfer mechanism 3 and the opening mechanism 4 approach the indwelling needle body 100, so that the rear end of the indwelling needle body 100 is first inserted into the opening guide hole 441 under the guidance of the guide surface 3 443. At this time, the positioning cone 3522 at the front end of the positioning needle body 352 is inserted into the rear end of the indwelling needle body 100, and the positioning platform 3521 abuts against the rear end of the indwelling needle body 100 to achieve docking with the indwelling needle body 100.

[0114] As the needle loading mechanism 5 further drives the transfer mechanism 3 and the opening mechanism 4 to move, the force of the elastic element 353 is overcome, and the rear end of the indwelling needle body 100 passes through the clearance notch 207 and the through hole 204 in sequence. Under the guidance of the guide surface 3314, the rear end of the indwelling needle body 100 is placed in the clearance hole 3311. At this time, the steel sheet 200 is installed in the middle of the indwelling needle body 100.

[0115] Finally, the fixing plate 201 moves away from the opening gap 4322 under the movement of the steel plate positioning assembly 33, and the first blocking part 205 and the second blocking part 206 approach each other and clamp the outer side wall of the indwelling needle body 100 under the elastic action of the first connecting piece 202 and the second connecting piece 203, thereby realizing the assembly of the steel plate 200 and the indwelling needle body 100.

[0116] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

[0117] It should be noted that the structures, proportions, and sizes depicted in the accompanying drawings are solely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation of this technical solution and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this technical solution, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms used in this specification, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity and not intended to limit the scope of implementation of this technical solution. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the technical solution's implementation.

[0118] It should also be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0119] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

Claims

1. A device for attaching a steel plate to an indwelling needle, characterized in that, include: Rack (1); The feeding mechanism (2), which is installed on the frame (1), is used to feed the steel sheet (200) to a set position; The transfer mechanism (3) is installed at the discharge end of the feeding mechanism (2) and is used to take out the steel sheet (200) in the feeding mechanism (2) and transfer the steel sheet (200) to a set position; An opening mechanism (4) is installed on the side of the transfer mechanism (3) to cooperate with the transfer mechanism (3) to open the steel plate (200) so that the indwelling needle body (100) can be inserted into the steel plate (200); The needle loading mechanism (5) is mounted on the frame (1) and is mounted at the lower end of the opening mechanism (4) and the transfer mechanism (3) to drive the opening mechanism (4) and the transfer mechanism (3) to move so as to insert the indwelling needle body (100) into the steel plate (200) at the opening mechanism (4); The transfer mechanism (3) includes: A transverse component (31) includes a drive element (311) and a movable seat (312), the drive element (311) being mounted on the frame (1) and driving the movable seat (312) to move on the frame (1); A flipping assembly (32) includes a flipping drive (321) and a flipping seat (322), wherein the flipping drive (321) is mounted on the movable seat (312) and drives the flipping seat (322) to flip on the movable seat (312); A steel sheet positioning assembly (33), which is mounted on the flipping seat (322), is used to position the steel sheet (200); The second transverse component (34) includes a second drive component (341) and a second movable seat (342), wherein the second drive component (341) is mounted on the flip seat (322) and drives the second movable seat (342) to move on the flip seat (322); The positioning pin assembly (35) is mounted on the movable seat (342), and the front end of the positioning pin assembly (35) can pass through the steel plate positioning assembly (33) to position the steel plate (200).

2. The device for attaching a steel plate to an indwelling needle according to claim 1, characterized in that: The steel sheet positioning assembly (33) includes: The steel plate positioning seat (331) has several clearance holes (3311) and vacuum suction holes (3312). A steel sheet positioning component (332) is installed at the front end of the steel sheet positioning seat (331), and the steel sheet positioning component (332) is provided with a plurality of steel sheet positioning holes (3321). The steel sheet positioning holes (3321) are used for the tail end of the steel sheet (200) to be inserted for positioning. The steel sheet positioning holes (3321) correspond to the clearance holes (3311), and the steel sheet positioning holes (3321) are connected to the vacuum suction holes (3312).

3. The indwelling needle upper steel plate device according to claim 2, characterized in that: The front edge of the steel sheet positioning hole (3321) is provided with a guide surface (3322), which is used to guide the steel sheet (200) to be inserted into the steel sheet positioning hole (3321).

4. The indwelling needle upper steel plate device according to any one of claims 1-3, characterized in that: The positioning pin assembly (35) includes: The positioning pin holder (351) has several mounting slots (3511) inside. A plurality of positioning pins (352) are slidably disposed in the corresponding mounting grooves (3511), and the front end of the positioning pins (352) can pass through the steel plate positioning assembly (33) and be inserted into the steel plate (200); Several elastic elements (353) are installed in the corresponding mounting grooves (3511), with one end of the elastic element (353) abutting the bottom of the mounting groove (3511) and the other end abutting the positioning pin body (352). The elastic element (353) is used to make the positioning pin body (352) tend to move toward the steel plate positioning assembly (33).

5. The indwelling needle upper steel plate device according to claim 4, characterized in that: The front end of the positioning needle body (352) has a positioning platform (3521), and the middle part of the positioning platform (3521) is provided with a positioning cone (3522). The positioning cone (3522) is used to be inserted into the indwelling needle body (100), and the positioning platform (3521) is used to abut against the rear end of the indwelling needle body (100).

6. The device for attaching a steel plate to an indwelling needle according to claim 1, characterized in that: The opening mechanism (4) includes: A support frame (41) is mounted on the frame (1); Open component one (42), which includes open drive source one (421) and open guide seat one (422), the open drive source one (421) is installed on the upper end of the support frame (41) and drives the open guide seat one (422) to slide on the support frame (41); The second opening component (43) includes an second opening drive source (431) and an second opening guide seat (432). The second opening drive source (431) is installed at the lower end of the support frame (41) and drives the second opening guide seat (432) to slide on the support frame (41). The first opening component (42) and the second opening component (43) are distributed vertically and arranged opposite to each other on the support frame (41). The second opening guide seat (432) is provided with a plurality of opening protrusions (4321), and an opening gap (4322) is formed between the opening protrusions (4321) for placing the steel sheet (200) in the middle.

7. The indwelling needle upper steel plate device according to claim 6, characterized in that: The adjacent ends of the first opening guide seat (422) and the second opening guide seat (432) are provided with guide half grooves (44). After the first opening guide seat (422) and the second opening guide seat (432) abut against each other, the two guide half grooves (44) form an opening guide hole (441). The opening guide hole (441) is used for the indwelling needle body (100) to pass through and be guided.

8. The device for attaching a steel plate to an indwelling needle according to claim 7, characterized in that: The two ends of the opening guide hole (441) are respectively provided with guide surface two (442) and guide surface three (443). The guide surface two (442) is used to guide the end of the positioning needle body (352) of the transfer mechanism (3) to be inserted into the opening guide hole (441), and the guide surface three (443) is used to guide the indwelling needle body (100) to be inserted into the opening guide hole (441).

9. The device for attaching a steel plate to an indwelling needle according to claim 1, characterized in that: The needle loading mechanism (5) includes a drive component three (51) and a movable seat three (52). The drive component three (51) is mounted on the frame (1) and drives the movable seat three (52) to move on the frame (1). The transfer mechanism (3) and the opening mechanism (4) are mounted on the movable seat three (52).

10. A steel plate device for an indwelling needle according to any one of claims 1, 2, 3, 5, 6, 7, 8, or 9, characterized in that: The feeding mechanism (2) includes: Vibratory feeder (21), which is installed on the side of the frame (1); The feeding track (22) is installed at the discharge end of the vibratory plate (21), and the feeding track (22) is provided with a plurality of feeding channels (221) for the transfer of steel sheets (200). The detection component (23), which is installed above the feeding track (22), is used to detect the steel sheet (200) in the feeding channel (221); A partition assembly (24), which is installed above the feed rail (22), is inserted into the feed channel (221) to restrict the movement of the steel sheet (200); The vibration of the feeding track (22) allows the tail end of the steel sheet (200) at the discharge end of the feeding track (22) to be inserted into the steel sheet positioning assembly (33) of the transfer mechanism (3), and the end of the positioning pin assembly (35) to be inserted into the steel sheet (200).

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