Cutting and sealing structure of full-automatic modified atmosphere fresh-keeping packaging machine

Abstract

The invention discloses a cutting and sealing structure of a full-automatic modified atmosphere fresh-keeping packaging machine. The cutting and sealing structure comprises a supporting table, an operation box is arranged above the supporting table, sliding ways are arranged at the left end and the right end of the upper portion of the supporting table, a lower module is arranged on the sliding ways, sliding rods are arranged at the four corners inside the operation box, an overload protection device is arranged, when a hydraulic rod is started to enable an upper module to press a lower die downwards and the downward pressing force is larger than the elasticity of springs, the included angle between a V-shaped rod and a protruding block is decreased, a third bearing is pushed to slide leftwards on an ejector rod, the springs are compressed, it is guaranteed that overlarge pressure generated when the lower module is pressed downwards by the upper module is subjected to overload protection, the module is prevented from being damaged, and the springs with different elasticity can be replaced according to the materials of the corners of a packaging box, the downward pressing force of the upper module is changed, and the situation that the corners of the packaging box are damaged due to the excessive pressure of the upper module is prevented.

Description

technical field [0001] The invention relates to the technical field of packaging machines, in particular to a cutting and sealing structure for a fully automatic modified atmosphere fresh-keeping packaging machine. Background technique [0002] The existing packaging machine presses down the lower die set through the upper die set during cutting and sealing. After pressing down, it is necessary to manually unload the packaged items. The pressure of the lower module cannot control the degree of downward pressure, which may easily cause excessive pressure, resulting in damage to the module, and may also cause deformation of the corners of the packaging box due to excessive pressure. [0003] Based on this, the present invention designs a cutting and sealing structure of a fully automatic modified atmosphere fresh-keeping packaging machine to solve the above problems. Contents of the invention [0004] The purpose of the present invention is to provide a cutting and sealing ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cutting and sealing structure of a fully automatic modified atmosphere fresh-keeping packaging machine, to solve the problem that the current existing packaging machine proposed in the above background technology presses down the lower die set through the upper die set when cutting and sealing, and presses down. Finally, it is necessary to manually unload the packaged items. The operation is cumbersome, time-consuming and labor-intensive, and the pressure of the upper die set on the lower die set cannot be controlled during cutting and sealing, which may easily cause excessive pressure and cause damage to the die set. , it may also be caused by the deformation of the corners of the packaging box due to excessive pressure

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