Plastic bag heat sealing bag-making machine

Abstract

The invention provides a plastic bag heat sealing bag-making machine. The machine comprises a heat sealing and cutting device and a material conveying device. The heat sealing and cutting device comprises a heat sealing and cutting knife and a heat sealing roller. The material conveying device comprises a driving roller and a belt covering the driving roller. A first transition roller is arranged on the heat sealing and cutting device, and a second transition roller is arranged on the material conveying device. The first transition roller is in transmission connection with a servo motor. The first transition roller and the second transition roller are in transmission connection through an elastic ring. A bag sending roller capable of moving up and down is arranged on the inner side of the elastic ring. A pinch roller corresponding to the bag sending roller is arranged above the elastic ring. The bag sending roller moves relative to the pinch roller, and is in transmission connection with the driving roller. According to the invention, through the cooperation of the bag sending roller and the pinch roller, packaging bags after heat sealing can be conveyed intermittently, gaps between every two packaging bags are the same, the bags can be sent more stably through a mechanical sending manner, intervals between the plastic bags can keep the same, and subsequent packaging operation is facilitated.

Description

technical field [0001] The invention relates to a heat-sealing bag-making machine, in particular to a heat-sealing bag-making machine for plastic bags. Background technique [0002] At present, for cards, postcards, books and red envelopes, etc., they are usually wrapped in a transparent plastic bag to reflect the delicacy of the items. The machine that packs the above items is called a heat-sealing bag making machine. In the packaging process, the transparent film is first made into a transparent bag with one side opening and three sides heat-sealed through the heat sealing and cutting device, the bag is moved to the corresponding position, one side opening is opened, and another conveying system will be packed. Push the object into the transparent bag, and finally seal the opening to complete the packaging process. In the prior art, this kind of heat-sealing bag-making machine is generally composed of a heat-sealing and cutting device and two conveying systems. The heat-...

AI Technical Summary

Problems solved by technology

But in this way, when the sealing and cutting device is turned on again, it is necessary to wait for the electric heating device on the heat sealing and cutting device to reach a sufficient temperature before it can work, which reduces the work efficiency and greatly reduces the production efficiency of the package

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