Needle cylinder conical joint air tightness detector and injector processing system

Abstract

The invention provides a needle cylinder conical joint air tightness detector and an injector processing system, the needle cylinder conical joint air tightness detector comprises a support, a lineardriving unit, a pressing column, a sealing gasket and a valve switch, the support is provided with a bearing plate, the bearing plate is provided with a mounting hole, and the pressing column is located above the bearing plate; the linear driving unit drives the pressing column to move relative to the bearing plate in the height direction of the support, the pressing column is provided with a first gas flow channel, a first gas outlet of the first gas flow channel faces the bearing plate, in the height direction, the projection of the first gas outlet is located in the projection of the installation hole, and the sealing gasket is installed on the pressing column and located at the first gas outlet. A second gas outlet of the valve switch is communicated with a first gas inlet of the firstgas flow channel. The injector machining system comprises the needle cylinder conical joint air tightness detector, the needle cylinder conical joint air tightness detector can be used in a production workshop, and then the needle cylinder can be subjected to spot check in the production process, so that the timeliness of needle cylinder detection is improved.

Description

technical field [0001] The invention relates to the technical field of syringe production and processing, in particular to an air tightness tester for a syringe conical joint and a syringe processing system provided with the air tightness tester for a syringe conical joint. Background technique [0002] A syringe is a common medical device used for pumping (ie, extracting or injecting) gas or liquid. Therefore, there are strict requirements on the airtightness of the connection between the conical joint of the syringe barrel and the needle seat of the needle. During the production and assembly process of the syringe, the airtightness test must be carried out on the conical joint of the syringe, the needle seat of the needle, the combined structure of the syringe and the piston core rod after assembly, so as to ensure that the syringe meets the use requirements and make the syringe can Has excellent performance. [0003] At present, the components of syringes (such as syring...

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Problems solved by technology

[0003] At present, the components of syringes (such as syringes, needles, piston core rods, etc.) are generally produced in clean production workshops above 100,000 grades, and among them, clean production workshops above 100,000 grades have strict requirements for anti-static, airflow, Atmospheric cleanliness and temperature and humidity all have special requirements. Therefore, there is no airtightness testing instrument for syringe cone joints on the market that is suitable for clean production workshops above 100,000 grades. The airtightness test of the joint is usually performed after the current batch of syringes are all injection molded, and then the batch of syringes is randomly inspected, and in order to ensure that the testing equipment does not pollute the production workshop, the airtightness of the conical joint of the syringe The safety test needs to transfer the syringe to other special testing laboratories outside the production workshop, but this makes the existing airtightness test of the conical joint of the syringe have the following disadvantages:

[0004] First, the sampling inspection of the existing syringes can only be transferred to a special testing laboratory for testing after the injection molding of the current batch of syringes is completed, and the sampling inspection of the syringes cannot be carried out at any time during the production process, resulting in When the proportion of unqualified syringes in the sampling inspection exceeds the specified ratio, the entire batch of produced syringes needs to be scrapped, which greatly increases production costs and production risks, and there is also the problem of poor timeliness of detection;

[0005] Second, the existing testing equipment is relatively expensive, and requires high professionalism of operators, which also increases labor costs;

[0006] Third, during the process of transferring the inspected syringes from the production workshop to the dedicated testing laboratory, the syringes are easily contaminated, which may affect the test results of the syringes

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