Ring-supporting device of machine for assembling needle base seal ring of safety self-destructing injection syringe

Abstract

The invention provides a ring supporting device for a needle-stand sealing ring assembling machine of a safe self-destruction type injector, which belongs to the technical field of medical appliances and solves the problems of product pollution and low efficiency caused by the manual ring supporting of the prior ring supporting device. The ring supporting device for a needle-stand sealing ring assembling machine of a safe self-destruction type injector comprises a rotating disc of the needle-stand sealing ring assembling machine and a plurality of cylinder-shaped ring supporting stands uniformly distributed on the rotating disc along the circumferential direction, wherein the end opening of each ring supporting stand is provided with a plurality of supporting claws uniformly distributed along the circumferential direction, and the supporting claws are in strip shapes. Furthermore, the inner end of each supporting claw is hinged into each ring supporting stand, the outer end of each supporting claw extends out of each ring supporting stand, the supporting claws are provided with gathering mechanisms which can gather the outer ends of the supporting claws and mount sealing rings into the ring supporting stands, and the ring supporting stands are internally provided with ring supporting mechanisms which can enlarge the sealing rings when the outer ends of the supporting claws spread towards the circumference. The ring supporting device has the advantages of uniform bearing force during the supporting action of the sealing rings, difficult scrape, long service life, difficult damage, and the like.

Description

technical field [0001] The invention belongs to the technical field of medical machinery, and relates to a support ring device, in particular to a support ring device of a needle seat sealing ring assembly machine for a safety self-destruction syringe. Background technique [0002] The latest generation of disposable safe self-destructing syringes sold in the market generally includes a syringe body, a needle seat, a rubber stopper and a needle rod. , the front end of the needle pull rod is movably inserted into the needle cylinder body from the rear end of the needle cylinder body. After the liquid medicine in the syringe body is infused and used up, the front end of the needle pull rod is inserted into the needle holder, and the needle pull rod is pulled back, and the needle holder and the needle on it are pulled into the cylinder at the same time and the needle pull rod is in a certain position. The part is broken. In order to have a good seal between the needle seat an...

AI Technical Summary

Problems solved by technology

The general assembly of the sealing ring is to expand the sealing ring and then put it on the needle seat. The traditional method is manual operation. The biggest disadvantage of manual operation is that the syringe is easy to attach germs, and it is inevitable that the needle will be damaged during the assembly process. The seat produces pollution, resulting in unqualified product hygiene requirements

On the other hand, the assembly speed of manual operation is also low, and it is difficult to adapt to the fierce market competition.

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