Bag making machine

Abstract

The invention discloses a bag making machine. According to the technical scheme, the bag making machine is mainly characterized by comprising a rack, the rack is provided with a feeding device for feeding plastic film rolls and a heat-sealing device, the heat-sealing device comprises heat-sealing knives, the two heat-sealing knives are parallel to each other, and a cutting device for cutting a plastic film is arranged at the position, located at the downstream of the heat-sealing device, of the rack; the bag making machine is provided with the two heat-sealing knives and the cutting device, and the heat-sealing knives only play a role in sealing the plastic film instead of cutting the plastic film, so that after heat-sealing of the plastic film is completed, a pair of parallel heat-sealing strips are formed on the plastic film, then the plastic film is sent into the cutting device, the cut position of the cutting device is located between the two heat-sealing strips, thereby the structures of the heat-sealing strips cannot be damaged, sealing performance of a plastic film bag cannot be influenced, the plastic film is not separated through heat cutting, stringing cannot be generated, and product quality and hand feeling of users in the later-stage using process are improved.

Description

technical field [0001] The present invention relates to a kind of production equipment of plastic film bag, more specifically, it relates to a kind of bag making machine. Background technique [0002] At present, in the packaging of electronic products, plastic film bags are the most commonly used. The existing plastic film bags mainly include a bag body with an opening, and a self-sealing strip is provided at the opening of the bag body. After being put into the bag body, the bag body can be sealed by the self-sealing strip, which effectively protects the electronic products placed in the bag body. [0003] In the production process of plastic film bags, the most commonly used is the bag making machine. The bag making machine makes plastic film bags of the required size through heat sealing and hot cutting of cylindrical plastic film raw materials. The invention with the application number of 201320408686.9 provides A heat-sealing bag-making machine is disclosed, which inc...

AI Technical Summary

Problems solved by technology

[0005] When the above sealing and cutting process is used for production, the heat sealing knife not only needs to realize the heat sealing of the bag body, but also needs to realize the cutting of the bag body, but the cutting of the bag body is realized by means of eager cutting. The phenomenon of wire drawing is easy to occur, which reduces the quality of the product and adds a lot of trouble to the user in the subsequent use; in addition, because the heat-sealing knife not only needs to realize the heat-sealing function, but also needs to realize the sealing-cutting function, so the heat-sealing strip The width of the plastic film bag is very narrow, the structural strength of the plastic film bag is very low, the plastic film bag is easily broken from the heat seal, and the service life of the plastic film belt is very short.

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