A spring mounting device for a blood collection needle

Abstract

This technical solution belongs to the field of medical equipment technology, specifically relating to a spring mounting device for blood collection needles, including a clamping device for securing the needle core and positioning the catheter; a spring feeding device for feeding springs to a spring preparation device; a spring preparation device connected to the output end of the spring feeding device, the upper part of the spring preparation device being provided with a spring clamp for gripping the spring; and a spring assembly device including a frame, an assembly assembly slidably disposed on the frame, and a sliding drive component, the lower part of the assembly assembly being provided with a clamping structure for gripping the spring. The sliding drive component drives the assembly assembly to move, thereby causing the clamping structure to move synchronously, for removing the spring from the spring clamp and moving it to the clamping device for assembly with the needle core, realizing automatic spring feeding and efficient assembly, thereby improving production efficiency.

Description

Technical Field

[0001] This technical solution relates to the field of medical equipment technology, specifically to a spring mounting device for a blood collection needle. Background Technology

[0002] Blood collection needles are mainly used to quickly puncture the skin to collect blood for various medical tests such as blood glucose monitoring and routine blood tests, in order to understand the physiological and pathological conditions of the human body. They are widely used in the medical industry.

[0003] Existing blood collection needles typically consist of a needle handle, a catheter, a flow stop clamp, a needle seat, a needle core, a spring, and a butterfly flap. The needle core is first glued to the end of the catheter, the spring is fitted onto the outside of the needle core, and the butterfly flap is snapped onto the side of the needle core where the spring is fitted. The existing spring installation method mainly relies on manual assembly, which has high labor costs. Moreover, the high labor intensity for manual workers can easily affect the stability of output, resulting in low production efficiency. Utility Model Content

[0004] This technical solution aims to improve the problem of low production efficiency caused by the reliance on manual operation for the installation of blood collection needle springs by providing a spring installation device for blood collection needles.

[0005] The purpose of this technical solution is achieved as follows: A spring mounting device for a blood collection needle, comprising: Clamping device, used to lock the needle core and position the catheter; A spring feeding device is used to feed springs to a spring preparation device; A spring preparation device is connected to the output end of the spring feeding device, and a spring clamping fixture for picking up springs is provided on the upper part of the spring preparation device. A spring assembly device includes a frame, an assembly assembly slidably disposed on the frame, and a sliding drive component. The lower part of the assembly assembly is provided with a clamping structure for clamping the spring. The sliding drive component drives the assembly assembly to move, thereby causing the clamping structure to move synchronously, for removing the spring from the spring fixing fixture and moving it to the clamping device for assembly with the needle core.

[0006] Through the above technical solution, when a spring mounting device for a blood collection needle is in normal use, the clamping device accurately engages and positions the needle core and the catheter; the spring feeding device continuously feeds springs to the spring preparation device, where a spring clamp holds a spring for preparation; the sliding drive of the spring assembly device drives the assembly component on its frame to slide, so that the clamping structure at the bottom of the component clamps the spring on the spring clamp, and the assembly component continues to move under the drive, moving the clamping structure and the spring it holds to the clamping device, aligning the spring with the needle core for assembly, thereby realizing automatic spring feeding and efficient assembly, thus improving production efficiency.

[0007] Preferably, the assembly component includes: A sliding frame, which is slidably mounted on the frame body; An assembly frame, slidably mounted on the sliding frame, wherein the sliding direction of the assembly frame is perpendicular to the sliding direction of the sliding frame, and the clamping structure is mounted on the lower part of the assembly frame; and A lifting drive component is mounted on the sliding frame. The lifting drive component drives the assembly frame to move up and down, thereby bringing the clamping structure closer to the spring-loaded fixed clamp. The clamping structure includes a movable seat slidably disposed on the assembly frame, a plurality of spring sleeve clamps disposed on the movable seat, and a clamping drive component. The sliding direction of the movable seat is parallel to the sliding direction of the sliding frame. The clamping drive component drives the movable seat to move back and forth, thereby driving the spring sleeve clamps to install the springs on the corresponding needle cores.

[0008] Through the above technical solution, the sliding drive component drives the sliding frame to slide horizontally on the frame to above the spring preparation device. The lifting drive component drives the assembly frame to move vertically downward, so that the spring sleeve clamp grabs the spring. The lifting drive component resets and lifts the assembly frame. The sliding frame moves horizontally back to the side of the clamping device. The lifting drive component drives the assembly frame to descend so that the spring on the assembly clamp and the needle core are at the same height. The sliding frame drives the spring to align with the needle core for fitting and locking. Through the horizontal positioning of the sliding frame and the vertical lifting and lowering linkage of the assembly frame, combined with the forward pushing and pressing action of the clamping drive component, the precise positioning and automated assembly of the spring are achieved, improving assembly accuracy and efficiency.

[0009] Preferably, the spring preparation device includes: The material preparation rack has several material preparation slots on its top. Each material preparation slot is connected to the corresponding discharge port of the spring feeding device. The material preparation slots are used to prepare springs. A material preparation seat is slidably mounted on the material preparation rack. The material preparation seat is provided with a plurality of spring-fixed clamps, each of which corresponds to a plurality of material preparation slots. The spring-fixed clamps are used to hold the springs in the corresponding material preparation slots. A material preparation drive unit is disposed on the material preparation rack. The material preparation drive unit drives the material preparation seat to move, thereby driving the spring fixed clamp to move so that the spring is exposed in the material preparation groove.

[0010] With the above technical solution, the spring falls into the corresponding material preparation groove. At this time, the spring fixed clamp holds a spring, and the material preparation drive drives the material preparation seat to move upward, which drives the spring fixed clamp to move synchronously. The spring fixed clamp carries the spring away from the groove through the opening above the material preparation groove, so that the spring can be clamped by the spring sleeve clamp.

[0011] Preferably, the spring feeding device includes: A feeding vibratory feeder, used to store and output springs; The feeding seat is provided with a plurality of feeding conveying pipes corresponding to the material preparation trough. The material preparation rack is provided with through holes for the corresponding feeding conveying pipes to pass through. The inlet end of the feeding conveying pipe is connected to the outlet of the feeding vibratory plate.

[0012] Through the above technical solution, the springs vibrating from the feeding vibratory plate are conveyed one by one along each feeding conveyor pipe to the corresponding material preparation trough, thereby achieving stable material supply and loading.

[0013] Preferably, the clamping device includes: Clamping assembly 1 includes clamping frame 1, upper clamp slidably disposed on clamping frame 1, and driving component 1; The clamping assembly 2 includes a clamping frame 2 corresponding to the clamping frame 1, a lower clamp slidably disposed on the clamping frame 2, and a driving member 2. The driving member 1 and the driving member 2 respectively drive the upper clamp and the lower clamp to move, so that the upper clamp and the lower clamp are relatively close to each other to form a clamping and positioning of the catheter.

[0014] Through the above technical solution, the clamping device pushes the upper clamp to move down along the clamping frame through the first driving component, while the second driving component drives the lower clamp to move up along the second clamping frame, so that the upper and lower clamps move synchronously towards each other and accurately clamp both ends of the guide tube; the needle core is vertically positioned between the upper and lower clamps along with the guide tube, providing a reference position for the assembly of the spring.

[0015] Preferably, the lower clamp is provided with a material support plate, and the top of the material support plate is provided with a material clamping groove for the needle core to be engaged.

[0016] With the above technical solution, when the material support plate of the lower clamp rises with the lower clamp to clamp the guide tube, the V-shaped material groove at the top of the plate accurately supports the bottom of the needle core, so that the needle core is vertically inserted into the groove, providing support for the needle core.

[0017] Preferably, it further includes a positioning device, which includes a positioning frame one, a positioning frame two slidably disposed on the positioning frame one, a positioning clamp disposed on the positioning frame two, and a positioning drive component. The positioning clamp is used to clamp and position the needle core, and the positioning drive component drives the positioning frame two to move, thereby driving the positioning clamp to move up and down.

[0018] Through the above technical solution, the positioning drive component drives the positioning frame two to move, and the positioning frame two clamps the needle core for positioning by the positioning fixture, which further stabilizes the position of the needle core and reduces the deviation between the needle core axis and the spring assembly trajectory.

[0019] Preferably, the fixture is provided with a plurality of clamping positions for assembling blood collection needles, the fixture includes a clamping plate, the top of the clamping plate has a clamping groove for clamping the catheter, and the fixture moves via a conveying track for feeding.

[0020] Through the above technical solution, the fixture tooling realizes the batch loading of conduits through the clamping plates with multiple clamping slots, and is accurately transported to each processing station by the conveyor rail.

[0021] The key and beneficial technical effects of this technical solution compared to existing technologies are: This technical solution uses a clamping device to stably position the needle core and guide tube, a spring feeding device to continuously deliver springs to the preparation station, and then a spring assembly device to drive the clamping structure through a sliding drive component, automatically completing the entire process from material picking to assembly. This improves the efficiency and consistency of spring assembly, reduces labor costs and operational errors, and increases production efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This is a schematic diagram of the overall structure of the spring assembly device in the embodiment; Figure 3 For the example Figure 2 A magnified view of part A; Figure 4 This is a partially enlarged schematic diagram showing the spring clamp protruding from the material preparation groove in the embodiment; Figure 5 This is an example. Figure 2 Another perspective illustration; Figure 6 This is a schematic diagram of the overall structure of the clamping device and the positioning device in the embodiment; Figure 7 As in the embodiments Figure 6 Schematic diagram of a partial explosion; Figure 8 This is a schematic diagram from a planar perspective of this embodiment.

[0023] Reference numerals: 1. Spring feeding device; 11. Feeding vibratory plate; 12. Feeding seat; 2. Spring preparation device; 21. Preparation rack; 22. Preparation seat; 23. Preparation drive component; 201. Spring fixed clamp; 3. Clamping device; 31. Clamping assembly one; 311. Clamping frame one; 312. Upper clamp; 313. Drive component one; 32. Clamping assembly two; 321. Clamping frame two; 322. Lower clamp; 323. Drive component two; 4. Spring assembly device; 41. Frame; 42. Assembly component ; 421. Sliding frame; 422. Assembly frame; 423. Lifting drive component; 43. Sliding drive component; 5. Anti-pinch device; 6. Material preparation trough; 7. Feeding and conveying pipe; 8. Through hole; 9. Material support plate; 10. Clamping structure; 101. Movable seat; 102. Spring sleeve clamp; 103. Clamping drive component; 13. Positioning device; 131. Positioning frame one; 132. Positioning frame two; 133. Positioning fixture; 134. Positioning drive component; 14. Fixture tooling; 141. Clamping plate; 15. Material clamping trough. Detailed Implementation

[0024] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0025] Example: See Figure 1 A spring mounting device for blood collection needles includes a clamping device 3, a spring feeding device 1, a spring preparation device 2, and a spring assembly device 4. The spring feeding device 1 includes a feeding vibratory plate 11 and a feeding seat 12. The vibratory plate is existing technology and will not be described in detail here. The feeding vibratory plate 11 is used to store springs and delivers them out sequentially through continuous vibration. The feeding seat 12 is provided with several feeding conveying pipes 7, each of which is connected to the outlet of the feeding vibratory plate 11, forming a continuous conveying channel from the feeding vibratory plate 11 to the preparation station. The springs discharged directionally by the feeding vibratory plate 11 first enter the inlet of the feeding conveying pipe 7. To further ensure conveying efficiency and prevent the flexible springs from stacking or getting stuck in the pipe, this device adopts an airflow-assisted method, using compressed gas to generate directional airflow to push the springs to move.

[0026] See Figure 2 , Figure 3 and Figure 4The spring preparation device 2 includes a preparation rack 21, a preparation seat 22, and a preparation drive component 23. The top of the preparation rack 21 has several preparation slots 6, each corresponding to a specific feeding pipe 7. The side wall of the preparation rack 21 also has through holes 8 that communicate with the corresponding preparation slots 6. The outlet of the feeding pipe 7 is aligned with the through hole 8, allowing the spring to pass through the through hole 8 and enter the preparation slot 6. The preparation slot 6 is used to prepare the spring. The preparation seat 22 is slidably connected to the preparation rack 21, with its sliding direction being vertical. The top of the preparation seat 22 has several spring clamps 201, preferably... A two-finger gripper cylinder and several spring-loaded clamps 201 are set one-to-one with several material preparation slots 6. The spring-loaded clamps 201 are located in the corresponding material preparation slots 6. The material preparation drive unit 23 is installed on the side of the material preparation rack 21 away from the material preparation seat 22. Its output end is connected to the material preparation seat 22 and is used to drive the material preparation seat 22 to move up and down between the first position and the second position. When the material preparation seat 22 is in the first position, this position is at the lowest point, and the spring-loaded clamps 201 are retracted into the material preparation slots 6, holding a spring for positioning. When the material preparation seat 22 moves to the second position, it takes the spring away from the material preparation slots 6 and exposes it in the preset material preparation position for subsequent assembly.

[0027] See Figure 2 and Figure 5 The spring assembly device 4 includes a frame 41, an assembly component 42, and a sliding drive component 43. The frame 41 is mounted above the spring preparation device 2. The assembly component 42 includes a sliding frame 421, an assembly frame 422, and a lifting drive component 423. The sliding frame 421 is slidably connected to the frame 41, and its sliding direction is horizontal along the frame 41. The assembly frame 422 is slidably connected to the sliding frame 421, and its sliding direction is perpendicular to the sliding direction of the sliding frame 421. The sliding drive component 43 is mounted on the frame 41, and its output end is connected to the sliding frame 421 for driving the sliding frame 421 to slide in the X-axis direction. The lowering drive component 423 is mounted on the sliding frame 421, and its output end is connected to the assembly frame 422 for driving the assembly frame 422 to slide. The lower part of the assembly frame 422 is provided with a clamping structure 10, which includes a movable seat 101, a spring sleeve clamp 102 and a clamping drive component 103. The movable seat 101 is slidably connected to the assembly frame 422, and its sliding direction is parallel to the sliding direction of the sliding frame 421. Several spring sleeve clamps 102 are mounted on the front end of the movable seat 101. The spring sleeve clamp 102 is preferably a three-finger gripper cylinder. Several spring sleeve clamps 102 are set one-to-one with several spring fixed clamps 201.

[0028] See Figure 6 , Figure 7 and Figure 8It also includes a positioning device 13, which includes a positioning frame 131, a positioning frame 2 132, a positioning clamp 133, and a positioning drive 134. The positioning frame 2 132 is slidably connected to the positioning frame 131, and its sliding direction is set vertically. The positioning clamp 133 is installed on the top of the positioning frame 2 132. The positioning drive 134 is installed below the side of the positioning frame 131 away from the positioning frame 2 132, and its output end is connected to the positioning frame 2 132 to drive it to move up and down. When the positioning drive 134 drives the positioning frame 2 132 to move up, it drives the positioning clamp 133 to clamp the front end of the needle core.

[0029] The clamping device 3 includes a first clamping assembly 31 and a second clamping assembly 32. The first clamping assembly 31 includes a first clamping frame 311, an upper clamp 312, and a first driving member 313. The first clamping frame 311 is located on the front side of the frame 41. The upper clamp 312 is slidably connected to the lower part of the first clamping frame 311, and its sliding direction is parallel to the second positioning frame 132. The second clamping assembly 32 includes a second clamping frame 321, a lower clamp 322, and a second driving member 323. The position of the second clamping frame 321 is the same as that of the first clamping frame 311. The lower clamp 322 is slidably connected to the clamping frame 311, and its sliding direction is parallel to the sliding direction of the upper clamp 312. The first driving member 313 is installed at one end of the clamping frame 311, and the second driving member 323 is installed below the clamping frame 321 away from the clamping frame 311. The first driving member 313 and the second driving member 323 respectively drive the upper clamp 312 and the lower clamp 322 to move, so that the teeth of the upper clamp 312 and the lower clamp 322 are relatively close to each other and mesh, forming a clamping and positioning of the catheter.

[0030] The fixture 14 moves along the conveyor track to achieve automatic feeding. The fixture 14 includes two clamping plates 141. The top of the two clamping plates 141 is provided with a tube clamping groove. The two ends of the guide tube are respectively inserted into the tube clamping grooves on both sides. The tube clamping assembly clamps one end of the guide tube through the cooperation of clamping assembly 1 31 and clamping assembly 2 32. The positioning device 13 clamps the needle tip section on the outside of the needle core through the positioning fixture 133, forming a two-point clamping initial positioning.

[0031] The sliding of the sliding frame 421 and the assembly frame 422 enables the spring sleeve clamp 102 to move along the X and Z axes, bringing the spring sleeve clamp 102 close to the spring in the spring preparation device 2 that has been clamped and lifted to the position to be picked up by the spring fixed clamp 201. The three-finger gripper cylinder and the two-finger gripper cylinder can be staggered in their gripping posture to avoid interference. The spring sleeve clamp 102 performs a gripping action to clamp the spring. The lifting drive 423 lifts the assembly frame 422, and the sliding drive 43 then drives the sliding frame 421 to move horizontally to the assembly station on the side of the blood collection needle. The spring is accurately fitted into the outer end of the needle core. At this time, the positioning device 13 needs to release the clamp on the front part of the needle core. The clamping drive 103 drives the movable seat 101 to move, causing the spring sleeve clamp 102 to move a second time until the spring and the needle core are completely engaged. The spring sleeve clamp 102 then exits and resets, realizing a precise and efficient collaborative operation from grabbing the spring at the preparation station to completing the installation at the assembly station.

[0032] The specific work process of this plan is as follows: This technical solution uses a clamping device 3 to precisely clamp and position the needle core and guide tube; a spring feeding device 1 continuously feeds springs to a spring preparation device 2, where a spring clamping fixture 201 holds a spring for preparation; the sliding drive component 43 of the spring assembly device 4 drives the assembly component 42 on its frame 41 to slide, so that the clamping structure 10 at the bottom of the component clamps the spring on the spring clamping fixture 201. The assembly component 42 continues to move under the drive, transferring the clamping structure 10 and the spring it holds to the clamping device 3, aligning the spring with the needle core for assembly, thus realizing automatic spring feeding and efficient assembly, thereby improving production efficiency.

[0033] 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.

Claims

1. A spring mounting device for a blood lancet, characterized in that include: Clamping device (3), which is used to clamp the needle core and position the catheter; A spring feeding device (1) is used to feed springs to a spring preparation device; A spring preparation device (2) is connected to the output end of the spring feeding device (1), and a spring clamp (201) for clamping springs is provided on the upper part of the spring preparation device (2). The spring assembly device (4) includes a frame (41), an assembly assembly (42) slidably disposed on the frame (41), and a sliding drive (43). The lower part of the assembly assembly (42) is provided with a clamping structure (10) for clamping the spring. The sliding drive (43) drives the assembly assembly (42) to move, thereby causing the clamping structure (10) to move synchronously, for taking the spring out of the spring fixing clamp (201) and moving it to the clamping device (3) for assembly with the needle core.

2. A spring mounting device for a lancet according to claim 1, wherein: The assembly component (42) includes: A sliding frame (421) is slidably mounted on the frame body (41); An assembly frame (422) is slidably mounted on the sliding frame (421), and the sliding direction of the assembly frame (422) is perpendicular to the sliding direction of the sliding frame (421). The clamping structure (10) is mounted on the lower part of the assembly frame (422). A lifting drive (423) is mounted on the sliding frame (421). The lifting drive (423) drives the assembly frame (422) to move up and down, thereby moving the clamping structure (10) closer to the spring fixed clamp (201). The clamping structure (10) includes a movable seat (101) slidably disposed on the assembly frame (422), a plurality of spring sleeve clamps (102) disposed on the movable seat (101), and a clamping drive (103). The sliding direction of the movable seat (101) is parallel to the sliding direction of the sliding frame (421). The clamping drive (103) drives the movable seat (101) to move back and forth, thereby driving the spring sleeve clamps (102) to install the spring on the corresponding needle core.

3. The spring mounting device for a blood collection needle according to claim 1, characterized in that: The spring preparation device (2) includes: The material preparation rack (21) has several material preparation slots (6) on its top. Each material preparation slot (6) is connected to the corresponding discharge port of the spring feeding device (1). The material preparation slots (6) are used to prepare springs. The material preparation seat (22) is slidably disposed on the material preparation rack (21). The material preparation seat (22) is provided with a plurality of spring fixing clamps (201). The plurality of spring fixing clamps (201) are provided one-to-one with a plurality of material preparation slots (6). The spring fixing clamps (201) are used to clamp the springs in the corresponding material preparation slots (6). The material preparation drive (23) is mounted on the material preparation rack (21). The material preparation drive (23) drives the material preparation seat (22) to move, thereby driving the spring fixed clamp (201) to move so that the spring is exposed in the material preparation groove (6).

4. The spring mounting device for a blood collection needle according to claim 3, characterized in that: The spring feeding device (1) includes: Feeding vibratory plate (11), which is used to store and output springs; The feeding seat (12) is provided with a plurality of feeding conveying pipes (7) corresponding to the material preparation trough (6). The material preparation rack (21) is provided with through holes (8) for the corresponding feeding conveying pipes (7) to pass through. The inlet end of the feeding conveying pipe (7) is connected to the outlet of the feeding vibrating plate (11).

5. The spring mounting device for a blood collection needle according to claim 1, characterized in that: The clamping device (3) includes: The clamping assembly 1 (31) includes a clamping frame 1 (311), an upper clamp (312) slidably disposed on the clamping frame 1 (311), and a driving member 1 (313); The clamping assembly two (32) includes a clamping frame two (321) corresponding to the clamping frame one (311), a lower clamp (322) slidably disposed on the clamping frame two (321), and a driving member two (323). The driving member one (313) and the driving member two (323) respectively drive the upper clamp (312) and the lower clamp (322) to move, so that the upper clamp (312) and the lower clamp (322) are relatively close to each other to form a clamping and positioning of the catheter.

6. The spring mounting device for a blood collection needle according to claim 5, characterized in that: The lower clamp (322) is provided with a material support plate (9), and the top of the material support plate (9) is provided with a material clamping groove (15) for the needle core to be clamped.

7. The spring mounting device for a blood collection needle according to claim 1, characterized in that: It also includes a positioning device (13), which includes a positioning frame one (131), a positioning frame two (132) slidably disposed on the positioning frame one (131), a positioning clamp (133) disposed on the positioning frame two (132), and a positioning drive (134). The positioning clamp (133) is used to position the clamped needle core, and the positioning drive (134) drives the positioning frame two (132) to move, thereby driving the positioning clamp (133) to move up and down.

8. The spring mounting device for a blood collection needle according to claim 1, characterized in that: It also includes a fixture (14), which has a plurality of clamping positions for assembling blood collection needles. The fixture (14) includes a clamping plate (141), the top of which has a clamping groove for clamping the catheter. The fixture (14) moves via a conveying track for feeding.

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