Heat die cutting specific making tool, device and method for shrink film specific packaging bag

Abstract

The invention discloses a heat die cutting specific making tool for a shrink film specific packaging bag. The tool comprises a left knife and a right knife which are connected together. The shape of the left knife is accordant with the right specific shape of the packaging bag. The shape of the right knife is accordant with the left specific shape of the packaging bag. The connecting ends of the left and right knifes are the separation point of two adjacent packaging bags. The invention also discloses a specific making device and a method using the same. The specific shapes of corner bags andround bottom bags can be made on an edge sealing machine, so as to lower the cost and automatically make the specific packaging bags.

Description

Technical field [0001] The invention relates to the technical field of heat-shrinkable film packaging, and is particularly related to the hot die-cutting special-shaped production tool, equipment and method of special-shaped packaging bags. Background technique [0002] In the processing and production of various films, the single-piece roll film is folded and heat-sealed (or two single-pieces are heat-sealed and bonded) to make a packaging bag to meet the needs of production and customers. In order to achieve the packaging effect, many bags need to be made into a round bottom or cut off the two corners of the bottom to make a corner-cut bag, or other shaped bottoms. Ordinary side-sealing bag-making machines can only make square bags. The current practice in the industry is to first make square bags on the side-sealing machine, and then hand-cut corners, hand-made round bottoms or other bottom shaped bags. Traditional manual hot die-cutting tools or plastic film hot die-cutting ...

AI Technical Summary

Problems solved by technology

Traditional manual hot die-cutting knives or other types of machine-used plastic film hot die-cutting knives are all made of metal materials such as steel plates and copper plates after finishing. The cost is extremely high, and the structure is precise and complicated. Non-professional manufacturers cannot make them Long cycle, cumbersome installation, long debugging process, low yield

Moreover, a set of tools can only produce one shape of special shape. Many shrink film packaging bags are multi-specification, small batch, one-time orders. Shrink film itself is a low-value packaging material, which costs a few cents or a few cents each. After amortizing the cost of hot die-cutting tools ranging from a few hundred to a few thousand yuan, the packaging bag becomes a few cents or a few yuan each. Users cannot accept it and choose other packaging methods, giving up the use of shrink film, resulting in Limitations of company and industry development

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