Silicification mechanism for needle tip of injector

Abstract

The utility model discloses a silicification mechanism of an injector needle tip. The silicification mechanism comprises a left sponge, a right sponge, a silicification driving assembly, a connecting plate and a lifting assembly. The left sponge and the right sponge are connected to the two ends of the silicification driving assembly, the silicification driving assembly is connected to one end of the connecting plate, and the other end of the connecting plate is connected with the lifting assembly. The silicification driving assembly comprises a double-end pneumatic claw, the left output end of the double-end pneumatic claw is connected with a left clamping plate, the right output end of the double-end pneumatic claw is connected with a right clamping plate, the left clamping plate is connected with a left sponge mounting plate, the right clamping plate is connected with a right sponge mounting plate, the left sponge mounting plate is connected with the left sponge, and the right sponge mounting plate is connected with the right sponge; and the double-end pneumatic claw is connected to one end of the connecting plate. The utility model aims to provide the silicification mechanism for the needle tip of the injector, which is high in operation efficiency and uniform in silicone oil coating.

Description

Technical Field

[0001] This utility model relates to a siliconization mechanism for syringe needle tips. Background Technology

[0002] A syringe consists of a syringe barrel with a small hole at the front and a matching piston rod. The syringe barrel is usually graduated for accurately measuring liquid volume and is often made of plastic or glass. The diameter and length of the needle vary to suit different injection needs. Utilizing the principle of pressure in physics, when the piston is pushed, it compresses the liquid inside the syringe barrel, causing the liquid to be ejected through the needle under pressure, thus achieving the purpose of injecting liquid into the human body or other objects. When the piston is pulled out, liquid or gas can be drawn in through the small hole at the front of the syringe barrel.

[0003] To reduce friction when the needle tip pierces the skin, making the injection process smoother and alleviating patient pain, existing methods require silicone treatment of the syringe needle tip, which involves coating the outer surface of the syringe with silicone oil. Traditional needle tip silicone treatment processes typically employ direct spraying, immersion, or manual wiping methods, but these suffer from problems such as uneven coating, oil waste, or low operational efficiency. For example, manual wiping may result in uneven oil film thickness; spraying requires complex equipment and is prone to environmental pollution; while immersion involves soaking the needle tip in silicone oil to complete the silicone treatment, but silicone oil also adheres to the inner wall of the needle tip during this process. To prevent silicone oil from clogging the needle and to prevent silicone oil from flowing back into the syringe and contaminating it, the needle tip needs to be vented multiple times, resulting in complex mechanisms and increased procedures.

[0004] Therefore, a siliconization mechanism for syringe needle tip is proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to overcome the existing defects and provide a siliconization mechanism for syringe needle tips, which has high operating efficiency and uniform silicone oil coating.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a siliconization mechanism for a syringe needle tip, comprising a left sponge, a right sponge, a siliconization drive assembly, a connecting plate, and a lifting assembly;

[0007] The left and right sponges are connected to the two ends of the siliconization drive assembly, the siliconization drive assembly is connected to one end of the connecting plate, and the other end of the connecting plate is connected to the lifting assembly.

[0008] Preferably, the siliconization drive assembly includes a dual-headed gripper, the left output end of the dual-headed gripper is connected to a left clamping plate, the right output end is connected to a right clamping plate, a left sponge mounting plate is connected to the left clamping plate, a right sponge mounting plate is connected to the right clamping plate, the left sponge is connected to the left sponge mounting plate, and the right sponge is connected to the right sponge mounting plate.

[0009] The dual-headed pneumatic gripper is connected to one end of the connecting plate.

[0010] Preferably, the lifting assembly includes a lifting cylinder, the output end of which is connected to the connecting plate; the lifting cylinder is connected to the lifting cylinder mounting plate.

[0011] Preferably, the left sponge mounting plate is connected to the left clamping plate by a stop bolt; the right sponge mounting plate is connected to the right clamping plate by another stop bolt.

[0012] Preferably, the needle tip of the syringe is located between the left sponge and the right sponge.

[0013] Compared with existing technologies, the beneficial effects of this invention are as follows: The siliconization mechanism of this syringe needle tip utilizes the slow-release properties of the sponge to prevent localized accumulation of silicone oil. Combined with motion control, the silicone oil is released from the sponge pores and transferred to the outer surface of the needle tip, forming a uniform oil film. Compared with spraying methods, atomization loss is reduced, and the utilization rate of silicone oil is improved. Compared with impregnation methods, the siliconization process does not require multiple air purgings after completion, making the process and mechanism simple. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is an isometric view of the siliconization mechanism of the syringe needle tip of this utility model;

[0016] Figure 2 This is a side view of the siliconization mechanism of the syringe needle tip of this utility model.

[0017] In the diagram: 1. Lifting cylinder mounting plate; 2. Lifting cylinder; 3. Connecting plate; 4. Double-headed gripper; 41. Left clamping plate; 42. Right clamping plate; 5. Left sponge mounting plate; 6. Right sponge mounting plate; 7. Stop bolt; 8. Left sponge; 9. Right sponge; 10. Syringe; 101. Needle tip. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-2A siliconization mechanism for a syringe needle tip includes a left sponge 8, a right sponge 9, a siliconization drive assembly, a connecting plate 3, and a lifting assembly. The left sponge 8 and right sponge 9 are connected to both ends of the siliconization drive assembly, which is connected to one end of the connecting plate 3. The other end of the connecting plate 3 is connected to the lifting assembly. The needle tip 101 of the syringe 10 is located between the left sponge 8 and the right sponge 9.

[0020] Specifically, the siliconization drive assembly includes a dual-headed gripper 4. The left output end of the dual-headed gripper 4 is connected to a left clamping plate 41, and the right output end is connected to a right clamping plate 42. A left sponge mounting plate 5 is connected to the left clamping plate 41, and a right sponge mounting plate 6 is connected to the right clamping plate 42. A left sponge 8 is connected to the left sponge mounting plate 5, and a right sponge 9 is connected to the right sponge mounting plate 6. The dual-headed gripper 4 is connected to one end of the connecting plate 3.

[0021] Specifically, the lifting assembly includes a lifting cylinder 2, the output end of which is connected to a connecting plate 3; the lifting cylinder 2 is connected to the lifting cylinder mounting plate 1.

[0022] Specifically, the left sponge mounting plate 5 is connected to the left clamping plate 41 by a stop bolt 7; the right sponge mounting plate 6 is connected to the right clamping plate 42 by another stop bolt 7. The pressure of the left sponge 8 and the right sponge 9 on the needle tip 101 can be adjusted by the stop bolts 7.

[0023] During operation, the left sponge 8 and right sponge 9 are pre-soaked in silicone oil, allowing them to fully absorb the silicone oil through capillary action, forming a saturated or semi-saturated oil-loaded sponge. The syringe 10 is then placed between the left sponge 8 and right sponge 9. The double-headed gripper 4 closes, causing the left clamp 41 and right clamp 42 to move simultaneously towards the center, ultimately bringing the left sponge 8 and right sponge 9 into contact with the outer surface of the needle tip 101 from the left and right sides respectively, with a predetermined pressure. The lifting cylinder 2 extends, driving the double-headed gripper 4 upwards via the connecting plate 3, which in turn moves the left sponge 8 and right sponge 9 upwards, causing them to rub against the outer surface of the needle tip 101. This releases the silicone oil from the sponge pores and transfers it to the outer surface of the needle tip, forming a uniform oil film. The pressure of the left sponge 8 and right sponge 9 on the needle tip 101 can be adjusted using the stop bolt 7. After completing the above actions, the gripper 4 returns to its open state, and the lifting cylinder 2 retracts to its original position.

[0024] The siliconization mechanism at the tip of this syringe utilizes the slow-release properties of a sponge to prevent localized silicone oil buildup. Combined with motion control, the silicone oil is released from the sponge pores and transferred to the outer surface of the needle tip, forming a uniform oil film. Compared to spraying, this reduces atomization loss and improves silicone oil utilization. Compared to impregnation, the siliconization process eliminates the need for repeated air purging after completion, simplifying the process and the mechanism.

[0025] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A siliconizing mechanism for a needle tip of a syringe, characterized by, It comprises left sponge (8), right sponge (9), siliconized drive assembly, connecting plate (3) and lifting assembly; The left sponge (8) and the right sponge (9) are connected at both ends of the siliconized drive assembly, the siliconized drive assembly is connected at one end of the connecting plate (3), and the other end of the connecting plate (3) is connected with the lifting assembly.

2. The silencing mechanism for a syringe needle tip of claim 1, wherein, The siliconized drive assembly comprises double-head air claw (4), the left output end of the double-head air claw (4) is connected with left clamp plate (41), the right output end is connected with right clamp plate (42), the left clamp plate (41) is connected with left sponge mounting plate (5), the right clamp plate (42) is connected with right sponge mounting plate (6), the left sponge mounting plate (5) is connected with the left sponge (8), and the right sponge mounting plate (6) is connected with the right sponge (9). The double-head air claw (4) is connected at one end of the connecting plate (3).

3. The silencing mechanism for a syringe needle tip of claim 1, wherein, The lifting assembly comprises lifting air cylinder (2), and the output end of the lifting air cylinder (2) is connected with the connecting plate (3); the lifting air cylinder (2) is connected on lifting air cylinder mounting plate (1).

4. The silencing mechanism for a syringe needle tip of claim 2, wherein, The left sponge mounting plate (5) is connected on the left clamp plate (41) through a stop bolt (7); the right sponge mounting plate (6) is connected on the right clamp plate (42) through another stop bolt (7).

5. The silencing mechanism for a syringe needle tip of claim 1, wherein, The needle tip (101) of the syringe (10) is located between the left sponge (8) and the right sponge (9).

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