Air leakage detection apparatus for gas packing food

Abstract

The invention relates to the field of food detection equipment, in particular to an air leakage detection apparatus for gas packing food. The air leakage detection apparatus for the gas packing food comprises a rack, an ejection press device and a rejection device. The ejection press device comprises an electric actuator, an ejector rod and a press plate. The ejector rod and the press plate are connected through a plurality of buffer springs. A conveyer belt is arranged below the press plate. The rejection device comprises a vertical guide rod, a piston block, a piston cylinder and a limitingplatform. An inner chamber of the piston cylinder is divided into an upper chamber and a lower chamber by the piston block. A sliding hole for the guide rod to penetrate through is formed in the upperend of the piston cylinder. A limiting protrusion and a reset spring are arranged in the piston cylinder. The upper end of the piston block makes contact with the limiting protrusion. The lower end of the piston block makes contact with the reset spring. A one-way air inlet valve, a one-way air outlet valve and an air blowing pipe are arranged on the piston cylinder. The air blowing pipe communicates with the one-way air outlet valve. Both the one-way air inlet valve and the one-way air outlet valve communicate with the upper chamber. The air leakage detection apparatus for the gas packing food has the advantages that g automatic rejection of packaging bags with air leakage is achieved, detection results are visible and reliable, continuous detection can be carried out, and the efficiencyis greatly improved.

Description

technical field [0001] The invention relates to the field of food detection equipment, in particular to an air leakage detection equipment for air-packed food. Background technique [0002] In a food processing factory, after the food is produced, it generally needs to be packaged before being sold. There are various ways of food packaging, such as bottled, boxed, bagged, etc. Inflatable packaging is one of the common food packaging methods. , common in puffed foods, such as potato chips that are popular in supermarkets. Inflatable packaging is to fill the packaging bag with a single gas such as nitrogen, carbon dioxide, oxygen, or a mixture of two or three gases after vacuuming the packaging bag. The nitrogen gas is an inert gas, which acts as a filling to maintain a positive pressure inside the bag to prevent the bag from being damaged. The outside air enters the bag to protect the food. It can be seen that for air-packed food, air-tightness is an important factor affect...

AI Technical Summary

Problems solved by technology

It can be seen that for air-packed food, air-tightness is an important factor affecting the final effect of air-filled packaging. When there is a serious air leakage in the packaging bag, impurities such as air and water are easy to enter the bag, breeding bacteria, causing food to deteriorate rapidly, greatly shorten shelf life

At present, the detection of air leakage in the packaging bag in the factory usually relies on manual methods such as pinching and visual observation, which is inefficient, and the staff are prone to fatigue, and the detection results are greatly affected by personal factors.

[0003] China Patent Authorization Announcement No. CN 206725170 U, the date of the authorized announcement is 2017.12.08, the name is "a kind of inflatable food packaging detection device", which discloses a method of pumping out the air in the observation chamber and observing the packaging in the observation chamber. Whether the bag is deformed to judge whether the bag is leaking or not, this kind of detection device still needs to be judged manually by naked eyes, and it is difficult to guarantee the accuracy of the test results, especially the bags with insignificant air leakage are difficult to distinguish, and each bag is inspected. All need to repeat the process of putting in and taking out the sealed observation chamber, which is very cumbersome

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