On May 23, 2025, the National Intellectual Property Administration announced that the "bottom rotating mechanism for blown film machine" developed by Guangdong Kezhida Intelligent Equipment Co., Ltd. was granted a utility model patent (patent number CN222891610U). This technology effectively solves the problem of film walking stability in the blown film process through a multi-layer rotating structure design.
1. Innovative structural design
The patent adopts a stacked layout of "main rotating frame + multiple auxiliary rotating frames". The main rotating frame drives multiple auxiliary rotating frames located on the base to operate synchronously through a driving motor, and each layer of rotating frames forms a coordinated guidance system through differentiated rotation angles.
2. Breakthrough in stability
The dynamic coordination of the multi-stage rotating structure significantly reduces the jitter and deviation during film conveying, which is especially suitable for the continuous production of high-precision film products.
Industry Value
The implementation of this patent will improve the production efficiency of blown film machines in the fields of packaging, agricultural films, etc., and is expected to reduce the raw material loss rate by 3%-5%. Industry insiders pointed out that this modular design may become the industry standard configuration of the next generation of blown film equipment.
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