Forming structure on packaging bag production device

Abstract

The invention discloses a forming structure on a packaging bag production device. The forming structure comprises a shell frame, a tensioning device, a sealing device, a supporting flat plate, a conveying device and a main lifting machine; the tensioning device is arranged above the shell frame and used for fixing a packaging roll film and adjusting the tension degree of the film; the shell frame is arranged at the bottom end; the supporting flat plate is fixed to the upper end face of the shell frame; multiple sets of square holes are formed in the supporting flat plate in a circumferential arrangement manner; the sealing device is arranged over the square hole close to the left side; the main lifting machine drives the sealing device to be integrally pressed downwards and lifted upwards, and the packaging film is subjected to heat sealing and cutting; the conveying device is arranged below the supporting flat plate and used for rotationally conveying packaging bags; and a leftover material collecting chamber and a packaging bag collecting chamber are arranged on the left side and the right side of the shell frame correspondingly.

Description

technical field [0001] The invention relates to the technical field of packaging bag production, in particular to a forming structure on a packaging bag production device. Background technique [0002] Packaging bags refer to bags used to pack various supplies, making the goods convenient to transport and store during the production and distribution process. Widely used in daily life and industrial production. Actual figures show that 80% of used plastic bags are eventually transported to landfills for disposal like general garbage, and only 7% of plastics are recycled. In the existing heat-sealing process for plastic packaging bags, the edges of the three-sided seals are not neat, resulting in wrinkles in the produced packaging bags, and when the packaging bags are loaded with items, they cannot be sealed, resulting in air leakage, which is harmful to food, etc. Other items cause safety hazards, and after sealing, they are easy to absorb the heat-sealing plate, and the cu...

AI Technical Summary

Problems solved by technology

In the existing heat-sealing process for plastic packaging bags, the edges of the three-sided seals are not neat, resulting in wrinkles in the produced packaging bags, and when the packaging bags are loaded with items, they cannot be sealed, resulting in air leakage, which is harmful to food, etc. Other items cause safety hazards, and after sealing, they are easy to absorb the heat-sealing plate, and the cutting is not smooth, causing the packaging film to be pulled and twisted.

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