Improved bag folding device of bag making machine

Abstract

An improved bag folding device of a bag making machine, two guide plates are arranged between the front folding plate shaft and the rear folding plate shaft, two side pressure plates are arranged above the two ends of the guide plate, and the bottom of each two side pressure plates Respectively pass through the gap between the two guide plates downward through the vertical plate, and connect with a drive device on both sides of the platen mounted on the frame that can drive the relative and lifting movements of the two platens on both sides; above the guide plate there is a Insertion plate; a chain transmission mechanism is provided between the bottom of the guide plate and the rear of the frame, and a plurality of U-shaped transmission clips are arranged at intervals on the chain of the chain transmission mechanism. The advantages of the present invention are: use the pressure plates on both sides to press the two sides of the plastic bag; use the inserting plate to insert a stack of plastic bags folded at both ends downwards into the lower transmission clip through the two guide plates, and then transmit it by the chain transmission mechanism. To the back, the plastic bag will not spread during the folding and transmission process, which is convenient for subsequent workers or subsequent strapping equipment to bundle and pack, and improves work efficiency; the structure is simple.

Description

technical field [0001] The invention relates to a bag folding device of a bag making machine, which is used for folding stacks of plastic bags after the plastic bags are punched during the production process of the bag making machine, so as to facilitate subsequent packaging. Background technique [0002] The punching process is the last process of the plastic bag making machine, which can be set independently in structure, and is used to punch one end of the stacks of plastic bags output by the previous step of the bag making machine out of the U-shaped opening to form a vest-style bag. plastic bag. The folding of a plastic bag is generally to fold the two straps of the plastic bag toward the center, then fold one end (about one-third) of the folded two straps up again, and finally fold the opposite third of the straps. Fold one up and press the opposite folded part underneath. The existing bag folding device occupies a station every time it is folded, which not only take...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned bag folding device can well complete the three-fold or four-fold folding action, but the structure is relatively complicated; when the front flap and the rear flap are folded, due to the lack of effective pressing, the two ends of the plastic bag are easy to fall apart when folding. Open; when a stack of folded plastic bags falls on the conveyor belt, it is easy to scatter, which brings inconvenience to the subsequent wrapping work and affects work efficiency

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