Self-adjustment uniform-pressure sealing mechanism of compound air adjustment packing machine

Abstract

The invention discloses a self-adjustment uniform-pressure sealing mechanism of a compound air adjustment packing machine. The mechanism comprises a control box, feeding rollers, a chassis, an operation platform, a placing box and a self-adjustment mechanism; the top surface of the chassis is the operation platform; the operation platform is vertically provided with the control box; the feeding rollers are mounted on two sides of the control box, and cooperate with self-adjustment structures positioned in the bottom end of the control box; the placing box and the operation platform slidingly cooperate; the placing box and the self-adjustment structures are positioned on the same horizontal plane, and cooperate with each other; two self-adjustment structures are provided and stacked about the vertical center line of the operation platform for increasing the friction and engagement force of two sides of films; meanwhile, the pressure of the films is uniform; the pressure can be automatically adjusted along with the bulging degree of the films; and because of the lever force balance principle, the bulging height is higher, the pressing strength is higher.

Description

technical field [0001] The invention relates to the field of composite modified atmosphere packaging machines, in particular to a self-adjusting pressure equalization sealing mechanism of the composite modified atmosphere packaging machine. Background technique [0002] Automated operations in the packaging industry are changing the way of action in the packaging process, packaging containers and their processing methods, the design and installation of automatic control packaging systems, and the improved packaging machines are mainly used for product transportation. Physiological functions such as photosynthesis, respiration, transpiration, etc., respiration is the main activity to promote the ripening of vegetables and fruits, such as tomatoes, kiwi fruit and other fruits and vegetables are not easy to store after maturity, and are not suitable for long-term transportation. Therefore, when packaging, it is necessary to lower the interior of the packaging box. The oxygen co...

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Problems solved by technology

[0002] The automatic operation in the packaging industry is changing the action mode of the packaging process, the packaging container and its processing method, the design and installation of the automatic control packaging system, and the improved packaging machine is mainly used for product transportation. Photosynthesis, respiration, transpiration and other physiological functions. Respiration is the main activity to promote the ripening of fruits and vegetables. For example, tomatoes, kiwis and other fruits and vegetables are not easy to preserve after ripening, and are not suitable for long-term transportation. Therefore, when packaging, it is necessary to lower the inside of the packaging box. Oxygen content, increase the relative carbon dioxide content, the existing composite modified atmosphere packaging machine through fast filling, remove the oxygen content in the package, reduce the oxygen content to 1% -3%, inhibit the tomato, kiwi, etc. Respiration, but when carbon dioxide is quickly filled, the film will bulge, the seal will shift and the pressure of the pressure roller will be uneven, resulting in air leakage from the seal and oxygen entering, affecting the freshness preservation effect

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