Vacuum forming packaging machine for strip-shaped packaging bags

Abstract

The invention discloses a vacuum forming packaging machine for strip-shaped packaging bags. A structure comprises feet, a machine body, a wrinkle and leakage preventing device and an operation plate.The four feet have a cylindrical structure, and are arranged horizontally on the lower surface of the machine body; the wrinkle and leakage preventing device is horizontally mounted on the upper surface of the machine body; the operation plate is horizontally mounted on the upper surface of the machine body; an elastic rope is pulled from the inside of a shrink-rolling box by a clamping mechanism,and the clamping mechanism is elastically stretched around an outer roller by a fixed pulley block, so that the packaging bag is evenly stressed on both sides during vacuum packaging; the packaging bag uniformly shrinks inside to exhaust gas; burrs on the packaging bag are removed by a burr processing mechanism and a transmission mechanism inside the wrinkle and leakage preventing device to prevent unfirm sealing of the packaging bags and air leakage caused by the burrs. At the same time, a wrinkle treatment mechanism prevents the wrinkles on the packaging bag from causing air inside, therebypreventing damage to products.

Description

technical field [0001] The invention relates to the field of vacuum forming packaging machines for strip packaging bags, in particular to a vacuum forming packaging machine for strip packaging bags. Background technique [0002] The strip bag vacuum forming packaging machine is used for vacuum packaging strip articles, discharging the air inside the bag, prolonging the storage time of the articles, preventing the deterioration and damage of the articles, and at the same time reducing the volume of the articles. [0003] 1. The existing strip-shaped packaging bag vacuum forming packaging machine adopts a direct method to absorb the air inside the packaging bag when vacuuming the packaging bag. When inflated, due to the flexibility of the packaging bag itself, when the packaging bag shrinks and exhausts, the packaging bags will be superimposed under the action of suction. Residual air, causing internal air to deteriorate and damage items. [0004] 2. At the same time, when t...

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Problems solved by technology

[0003] 1. The existing strip-shaped packaging bag vacuum forming packaging machine adopts a direct method to absorb the air inside the packaging bag when vacuum exhausting the packaging bag. When inflated, due to the flexibility of the packaging bag itself, when the packaging bag shrinks and exhausts, the packaging bag will be superimposed under the action of suction. The superposition will cause the packaging bag to wrinkle during packaging. Residual air, causing internal air to deteriorate and damage items

[0004] 2. At the same time, when the existing strip packaging bag vacuum forming packaging machine is packaging, there will be small texture burrs on the packaging bag, which will be sealed after vacuum suction. The airtightness of the packaging is not good, resulting in air leakage after packaging

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