Plastic packaging bag cutting equipment

Abstract

The invention disclose plastic packaging bag cutting equipment, including a body frame, a cutter is slidingly connected on the body frame, the inside of which is slidingly connected with an expandable and retractable pressing block, the middle of the expandable and retractable pressing block and the cutter is connected by a first spring, an upper pressing board and an lower pressing board is provided under the cutter, a first rotating shaft is connected with the upper pressing board, a first bevel gear is connected with the body frame, the first rotating shaft is connected with the first bevel gear, the teeth of which are meshed with the second bevel gear, one side of the second bevel gear is circumferentially uniformly distributed with angle bars, a stop lever is connected in a hinge mode on the body frame located above the angle bars, a third bevel gear is connected with the first rotating shaft, the teeth of which are meshed with a first duplex gear, the teeth of the first duplex gear are meshed with toothed racks, the toothed racks are engaged with a second duplex gear, the teeth of the second duplex gear are meshed with a fourth bevel gear, the fourth bevel gear is connected with a second rotating shaft, the second rotating shaft is fixed on a under pressing board, the bottom of the second rotating shaft is rotationally connected with a sliding block; the provided linkage mechanism, can perform edge replacement operations for plastic packaging bags.

Description

technical field [0001] The invention relates to the field of machinery for cutting plastics, in particular to a cutting device for plastic packaging bags. Background technique [0002] Plastic packaging bag is a kind of packaging bag that uses plastic as raw material to produce various supplies in daily life. It is widely used in daily life and industrial production. In industrial production, many small snacks need to be packaged in plastic packaging bags. Here During the process, the plastic packaging bag needs to be hot-pressed, primary cut, secondary cut, bagged and sealed. The hot-pressing step is to put the front and back of the plastic packaging bag on two fixed rollers respectively, and then use the counter roller to make them movement, and set a hot-pressing device between the two fixed rollers and the counter-rollers for hot pressing, leaving a pre-loading opening; a cutting step is to use a cutter to cut the plastic packaging bag along one of the hot-pressing track...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned scheme solves the problem of aesthetics in the prior art, but there are still certain problems. 1. When trimming polygonal plastic packaging bags, this scheme is not provided with an automatic side-changing mechanism, and the packaging needs to be manually The bag is switched to a different cutting edge, and the cutting of the different sides has been completed

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