Self error correction leakage test mechanism and leakage test device

Abstract

The invention discloses a self error correction leakage test mechanism and a leakage test device. The mechanism comprises a driving source, a gland in driving connection with the driving source, a leakage test assembly comprising a sealing member, a leakage test probe arranged at an interval from the gland, a rotation supporting body pressing against between the gland and the leakage test probe, and at least two elastic telescoping assemblies, wherein the leakage test probe is provided with a leakage test air channel, the sealing member is arranged on the leakage test probe and is used for incrimping sealing with a container port of a to-be-tested container, and the at least two elastic telescoping assemblies are connected between the gland and the leakage test probe and are arranged at intervals in a mode of surrounding the supporting body. The mechanism is advantaged in that for mounting errors of a cylinder and the to-be-tested container, assembling slits at contact portions of thesealing member and an end surface of the container port can be automatically adapted and eliminated, the automatic error correction function is realized, a problem that qualified containers are determined to be disqualified containers can be prevented, not only accuracy and reliability of the test result be improved, but also the rejection rate of containers is reduced, and avoidable loss of enterprises can be avoided.

Description

technical field [0001] The invention relates to the technical field of airtight detection, in particular to a self-correcting deviation detection mechanism and a leakage detection device. Background technique [0002] At present, in the beverage industry, in order to make the filling container reusable, it is necessary to regularly test the air tightness of the filling container. Usually, a pressure leak tester is used for the test, and the main working part is the intake valve. The specific test method is: inject compressed air into the container through the intake valve, hold the pressure for a certain period of time after the inflation is stopped, the system detects the change of pressure, and then judges whether the container leaks according to the set conditions. In order to ensure the accuracy of the test results, the compressed air intake pipeline and the end surface of the intake valve in contact with the container mouth must ensure no air leakage, so the structure a...

AI Technical Summary

Problems solved by technology

However, in actual work, due to the limitation of installation accuracy, space position and other factors, the installation of the cylinder is not completely vertical, and the end surface of the container mouth is not in an ideal horizontal state, resulting in a gap between the seal and the end surface of the container mouth, which cannot be formed. good seal

In this way, due to the leakage of the assembly surface, the qualified container will also be misjudged as a leaking container, the accuracy and reliability of the test results will be greatly reduced, and the "scrap rate" of the container will be greatly increased. The business suffers heavy losses

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