Insulin needle supply device

Abstract

An insulin needle supply device, which uses a needle cartridge (21) mounted on a support frame (11) to store needles (a) in an orderely manner, each needle (a) being horizontally placed and sequentially stacked side by side. The bottom of the needle cartridge (21) is designed to have a rectangular needle-dropping hole (212), which has a direction of length parallel to a direction of length of the needle (a), ensuring the stability and accuracy of the needle (a) during vertical dropping. The needle supply device is further provided with a rotary needle pickup disk (22), which has an axis of rotation consistent with the direction of length of the needle (a). A needle storage slot (221) in the needle pickup disk (22) can accommodate only one needle (a) at a time, ensuring the precision and consistency of needle pickup. In addition, a magnetic member is further provided in the needle storage slot (221), such that the needle (a) can be magnetically attached, with the tail of the needle (a) being exposed from the needle storage slot (221), which can facilitate needle pickup, and also ensure the stability and safety of the needle (a).

Description

An insulin needle delivery device Technical Field

[0001] This invention relates to the field of insulin needle processing equipment technology, specifically an insulin needle supply device. Background Technology

[0002] In the production of insulin needles, a crucial step involves attaching the needle to the needle hub. In the early stages of insulin needle production, due to technological limitations, this is typically done manually. While manual attachment allows for the assembly of the needle and hub, the process involves employees using their hands or tweezers to directly pick up the needles from the needle box. Since the needles are stacked sequentially in the box, using hands to pick up a needle can cause fingers or tweezers to push aside other needles next to the target needle, easily leading to needle misalignment and hindering subsequent continuous needle picking. Furthermore, because the needles are thin, directly using hands can result in accidentally grabbing multiple needles at once, requiring the excess needles to be returned, making them unusable immediately.

[0003] It is evident that the current method of manually removing needles directly from the needle box is cumbersome and inconvenient, and therefore urgently needs to be addressed. Summary of the Invention

[0004] To avoid and overcome the technical problems existing in the prior art, the present invention provides an insulin needle dispensing device. The present invention can effectively improve the convenience of needle gripping.

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

[0006] An insulin needle supply device includes a needle box mounted on a support frame for storing needles. Horizontally placed needles are stacked side-by-side in the needle box from top to bottom. A rectangular needle drop hole is provided at the bottom of the needle box for the needles to fall vertically, with the length of the drop hole parallel to the length of the needles inside the needle box. A needle retrieval disc is rotatably mounted below the drop hole, with its axis of rotation parallel to the length of the needles inside the needle box. The outer circumferential surface of the rotating needle retrieval disc fits against the opening of the drop hole to contain the needle. A needle storage slot, capable of holding only one needle at a time, is provided on the outer circumferential surface of the needle retrieval disc, with the length of the slot parallel to the length of the needles inside the needle box. The needle storage slot is equipped with a magnetic element that magnetically attracts the needle, with the tail of the needle protruding from the storage slot.

[0007] As a further embodiment of the present invention: guide grooves extending vertically are provided on both sides of the needle box, and pressure rods pressing on the needle head are inserted into both guide grooves simultaneously.

[0008] As a further aspect of the present invention: the pressure rod is cylindrical, and a rotation gap is left between it and the guide groove; the rod body of the pressure rod has multiple annular grooves with a depth smaller than the needle radius, which are used to embed the uppermost row of needles in the needle box, and each annular groove is arranged sequentially connected along the axial direction of the pressure rod.

[0009] As a further embodiment of the present invention: counterweights are installed at both ends of the pressure rod. The counterweights are hollow cylinders and are arranged coaxially with the pressure rod. A cylindrical rolling cavity is formed coaxially inside the counterweight, and multiple balls are placed inside the rolling cavity.

[0010] As a further aspect of the present invention: the inner wall surface of the rolling cavity is provided with a plurality of protrusions that can collide with the rolling ball and bounce the rolling ball, and a channel for the rolling ball to pass through is formed between adjacent protrusions.

[0011] As a further aspect of the present invention: positioning holes are provided on both sides of the needle drop hole on the needle box, and a stop pin is inserted in the positioning hole to block the needle drop hole and prevent the needle from falling.

[0012] As a further embodiment of the present invention, the stop pin is U-shaped.

[0013] As a further aspect of the present invention: the cavity of the needle box is a tapered needle storage space that gradually narrows from top to bottom.

[0014] As a further aspect of the present invention: multiple needle storage slots are provided on the outer circumferential surface of the needle collection disc, and each needle storage slot is evenly arranged along the circumference of the needle collection disc.

[0015] As a further embodiment of the present invention: the magnetic component is an electromagnet installed inside the needle dispensing plate. Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The needle supply unit of this invention employs a needle box mounted on a support frame to orderly store needles. Each needle is placed horizontally and stacked side by side. This design not only saves space but also improves the stability and accessibility of the needles. More ingeniously, the bottom of the needle box is designed with a rectangular needle drop hole, the length of which is parallel to the length of the needle, ensuring the stability and accuracy of the needle during vertical drop. Furthermore, the needle supply unit is equipped with a rotating needle retrieval disc, the axis of rotation of which is aligned with the length of the needle. This design allows the needle retrieval disc to effectively block the needle in the drop hole when its outer circumference is in contact with the opening, preventing accidental drop. The needle storage slot on the retrieval disc is ingeniously designed, accommodating only one needle at a time, ensuring precision and consistency in needle retrieval. Simultaneously, the needle storage slot is equipped with a magnetic component that magnetically attracts the needle, allowing the tail of the needle to protrude from the storage slot, facilitating needle retrieval while ensuring needle stability and safety.

[0018] 3. The guide grooves and insertable pressure rods on both sides of the needle box further improve the stability and ease of needle retrieval. The pressure rod presses on the needle, maintaining balance through counterweights at both ends. A rotational clearance between the pressure rod and the guide groove allows for slight rotation under external force, flexibly adapting to needles of different sizes. The multiple coaxially recessed annular grooves on the pressure rod further facilitate the insertion of the top row of needles into the needle box. The pressure rod presses on the middle of the needles inside the needle box, while the top row of needles is embedded in the annular grooves, maintaining stability and preventing misalignment due to device vibration during processing, thus making needle retrieval smoother.

[0019] 4. The internal rolling cavity and ball bearing design of the counterweight not only reduces its weight but also increases the downward pressure of the pressure rod through the collision and jolting of the balls against the protrusions. This prevents needles from getting stuck due to pressure inside the needle box, thus improving the stability and flexibility of the needle retrieval process. This design not only improves assembly efficiency but also ensures the safety and reliability of the entire assembly process.

[0020] 5. When the equipment vibrates during operation, the clearance fit between the pressure rod and the guide hole, along with the small rolling between the annular groove and the needle, causes the balls to roll between the protrusions in the rolling cavity. At the same time, the slightly upward protrusions cause the balls passing by to be bounced up and then fall down to collide with the counterweight, thus providing the pressure rod with an intermittent and repetitive downward vibration force to regularly push the needles to gather at the feeding hole, preventing the needles on the lower side of the needle box from being stuck together by the needles on the upper side, and improving the continuity of feeding. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 is a schematic diagram of the rear structure in this invention.

[0023] Figure 3 is a schematic diagram of the disassembled structure of the present invention.

[0024] Figure 4 is a schematic diagram of the assembly structure of the pressure bar and the counterweight in this invention.

[0025] Figure 5 is a schematic diagram of the needle-retrieving disc in this invention.

[0026] In the diagram: 11. Support frame; 21. Needle box; 211. Guide groove; 212. Needle drop hole; 213. Positioning hole; 22. Needle pick-up plate; 221. Needle storage groove; 23. Pressure rod; 231. Annular groove; 24. Counterweight; 241. Protrusion; 242. Ball bearing; 25. Stop pin. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please refer to Figures 1 to 5. In this embodiment of the invention, an insulin needle supply device includes a needle box 21 mounted on a support frame 11 for storing needles a. The cavity of the needle box 21 is a needle storage space that is wider at the top and narrower at the bottom, and the thickness of the storage space is slightly greater than the length of the needle a to prevent the needle a from getting stuck in the needle box 21. This allows the horizontally placed needles a to be stacked side by side in the needle box 21 from top to bottom. A rectangular needle drop hole 212 is provided at the bottom of the needle box 21 for the needles a to fall vertically, and the length direction of the needle drop hole 212 is parallel to the length direction of the needles a inside the needle box 21. A disc-shaped needle retrieval plate 22 is rotatably mounted below the needle drop hole 212, and the axis of rotation of the needle retrieval plate 22 is parallel to the length direction of the needles a inside the needle box 21. The outer circumferential surface of the rotating needle-collecting disc 22 is fitted against the opening of the needle-dropping hole 212 to block the needle a in the needle-dropping hole 212. Then, a needle storage groove 221 is opened on the outer circumferential surface of the needle-collecting disc 22, which can only hold one needle a at a time. The length direction of the needle storage groove 221 is parallel to the length direction of the needle a in the needle box 21. The needle storage groove 221 is equipped with a magnetic element that can magnetically attract the needle a in the needle storage groove 221. The tail of the needle a is exposed outside the needle storage groove 221. When the needle-collecting disc 22 rotates under the drive of the servo motor, the needle storage groove 221 passes through the needle-dropping hole 212, and one of the needles a falls into the needle storage groove 221. The tail of the needle a is exposed outside the needle storage groove 221, which is convenient for the tweezers to pick up. Under the attraction of the electromagnet that acts as the magnetic part, the needle a moves away from the discharge hole along with the needle storage groove 221 and rotates 180 degrees to the needle retrieval position at the bottom of the needle retrieval plate 22 for subsequent retrieval.

[0029] The needle box 21 has positioning holes 213 on both sides of the needle drop hole 212. A U-shaped stop pin 25 is inserted in the positioning hole 213 to block the needle drop hole 212 and prevent the needle a from falling, so as to block the needle a when changing the needle pick-up plate 22.

[0030] As the needle a is continuously carried away by the needle-removing disc 22, the needle a inside the needle box 21 gradually sinks. To further improve the stability of the sinking, guide grooves 211 extending vertically are opened on both sides of the needle box 21. Pressure rods 23 are inserted into both guide grooves 211, pressing the needle a. Counterweights 24 are installed at both ends of the pressure rods 23. The pressure rods 23 are cylindrical, and there is a rotation gap between them and the guide grooves 211. The rod body of the pressure rod 23 has multiple annular grooves 231 with a depth smaller than the radius of the needle a, which are used to embed the uppermost row of needles a in the needle box 21. The annular grooves 231 are arranged sequentially along the axial direction of the pressure rod 23. The pressure rod 23 presses against the middle of the needle a inside the needle box 21, while the uppermost row of needles a is embedded in the annular groove 231, maintaining its stability and preventing the needles a from shaking and becoming misaligned due to device vibration during processing, thus making the needle retrieval process smoother. The needle retrieval plate 22 can also use vacuum suction to retrieve needles. A small vacuum pump is arranged in the needle retrieval plate 22, and the vacuum pump is connected to a suction hole at the bottom of the needle storage slot 221, thereby adsorbing the needles a into the needle storage slot 221.

[0031] The counterweight 24 is a hollow cylinder, coaxially arranged with the pressure rod 23. A cylindrical rolling cavity is coaxially formed inside the counterweight 24, containing multiple balls 242. Multiple protrusions 241 are provided on the inner wall of the rolling cavity, which collide with and bounce the balls 242. Channels for the balls 242 to pass through are formed between adjacent protrusions 241. This design of the rolling cavity and balls 242 inside the counterweight 24 not only reduces the weight of the counterweight 24, but also, during operation, the vibration causes the balls 242 to collide with and bounce against the protrusions 241, increasing the downward pressure of the pressure rod 23. This prevents the needle a from becoming stuck due to pressure inside the needle box 21, thus improving the stability during needle retrieval.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An insulin needle delivery device, characterized in that, The device includes a needle box (21) mounted on a support frame (11) for storing needles (a). The needles (a) are arranged horizontally and stacked side by side in the needle box (21) from top to bottom. A rectangular needle drop hole (212) is provided at the bottom of the needle box (21) for the needles (a) to fall vertically. The length direction of the needle drop hole (212) is parallel to the length direction of the needles (a) in the needle box (21). A needle picker (22) is rotatably mounted below the needle drop hole (212). The axis of rotation of the needle picker (22) is parallel to the length direction of the needles (a) in the needle box (21). The outer circumferential surface of the rotating needle-collecting disc (22) is attached to the opening of the needle-dropping hole (212) to block the needle (a) in the needle-dropping hole (212). The outer circumferential surface of the needle-collecting disc (22) is provided with a needle storage groove (221) that can only accommodate one needle (a) at a time. The length direction of the needle storage groove (221) is parallel to the length direction of the needle (a) in the needle box (21). The needle storage groove (221) is provided with a magnetic element that can magnetically attract the needle (a) in the needle storage groove (221), and the tail of the needle (a) protrudes out of the needle storage groove (221).

2. The insulin needle delivery device according to claim 1, characterized in that, Both sides of the needle box (21) are provided with guide grooves (211) extending in the vertical direction, and pressure rods (23) pressing on the needle (a) are inserted in the two guide grooves (211).

3. The insulin needle delivery device according to claim 2, characterized in that, The pressure rod (23) is cylindrical and has a rotation gap between it and the guide groove (211). The rod body of the pressure rod (23) has multiple annular grooves (231) with a depth smaller than the radius of the needle (a) and used to embed the uppermost row of needles (a) of the needle box (21). The annular grooves (231) are connected in sequence along the axial direction of the pressure rod (23).

4. An insulin needle delivery device according to claim 1, 2, or 3, characterized in that, The pressure rod (23) is equipped with counterweights (24) at both ends. The counterweights (24) are hollow cylinders and are arranged coaxially with the pressure rod (23). The counterweights (24) have a cylindrical rolling cavity formed coaxially inside, and multiple balls (242) are placed inside the rolling cavity.

5. The insulin needle delivery device according to claim 4, characterized in that, The inner wall of the rolling cavity is provided with multiple protrusions (241) that can collide with the ball (242) and bounce the ball (242) up. A channel for the ball (242) to pass through is formed between adjacent protrusions (241).

6. The insulin needle delivery device according to claim 5, characterized in that, The needle box (21) has positioning holes (213) on both sides of the needle drop hole (212). A stop pin (25) is inserted in the positioning hole (213) to block the needle drop hole (212) and prevent the needle (a) from falling.

7. The insulin needle delivery device according to claim 6, characterized in that, The stop pin (25) is U-shaped.

8. The insulin needle delivery device according to claim 7, characterized in that, The cavity of the needle box (21) is a cone-shaped needle storage space that gradually narrows from top to bottom.

9. The insulin needle delivery device according to claim 8, characterized in that, Multiple needle storage slots (221) are provided on the outer circumference of the needle collection plate (22), and each needle storage slot (221) is evenly arranged along the circumference of the needle collection plate (22).

10. An insulin needle delivery device according to claim 9, characterized in that, The magnetic component is an electromagnet installed inside the needle-retrieving plate (22).

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