Equipment for online detection of vacuum degree of cans and its inspection head

Abstract

The invention discloses equipment for online detection of the vacuum degree of cans and its inspection head. The inspection head includes a casing of the inspection head, a coil A, a coil B, a coil C, a metal percussion ball, and a device for detecting the metal percussion ball. The photoelectric switch A of the inspection head and the photoelectric switch B of the inspection head; the work of the inspection head is as follows: the coil A is energized, and the metal percussion ball is attracted to the height of the coil A; the coil A is powered off, the coil B is energized, and the metal percussion ball is Downward acceleration movement; when the photoelectric switch A of the inspection head detects the metal percussion ball, the coil B is powered off, the coil C is energized, and the metal percussion ball accelerates downward; when the inspection head photoelectric switch B detects the metal percussion ball When the coil C is powered off, the metal percussion ball hits the can lid at high speed; when the photoelectric switch B of the inspection head detects the metal percussion ball, the coil A is energized, and the metal percussion ball is sucked back to the height of the coil A. This solution uses electromagnetic to drive the falling body, and at the same time quickly recovers the falling body, so as to realize fast inspection and stable detection.

Description

technical field [0001] The invention belongs to the technical field of canned food automatic processing devices, and in particular relates to a device for online detection of the vacuum degree of canned food and a testing head thereof. Background technique [0002] my country is a big producer and exporter of citrus and other canned fruit products. After the cans are sealed and sterilized, most factories use manual tapping to detect the vacuum degree of the cans, and listen to the sound to judge whether the vacuum degree of the cans is qualified. This requires experienced workers, and the work intensity is high. The rate of false detection and missed detection Higher; the existing automatic detection equipment usually uses optical detection or electric small hammer to hit the can lid, and the optical detection has a large error due to the surface accuracy of the can lid; Large; the best way to knock is the falling body without traction, and the initial movement speed of the...

AI Technical Summary

Problems solved by technology

After the cans are sealed and sterilized, most factories use manual tapping to detect the vacuum degree of the cans, and listen to the sound to judge whether the vacuum degree of the cans is qualified. This requires experienced workers, and the work intensity is high. The rate of false detection and missed detection Higher; the existing automatic detection equipment usually uses optical detection or electric small hammer to hit the can lid, and the optical detection has a large error due to the surface accuracy of the can lid; Large; the best way to strike is the falling body without traction, and the initial movement speed of the free fall is slow, which cannot cope with the fast passing cans, which affects work efficiency

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