Zhejiang University

Tederic Machinery Co., Ltd.

Jianguo Zheng

Peng Zhao

Jianzhong Fu

Bo Liu

Hongwei Zhou

Zhengyang Dong

Binqi Rao

Tingyu Wang

Kaipeng Ji

Jiahui Lu

Hongyuan Ma

Haibo Shen

Wu Lin

Jia Zhou

Guolin Liu

For in mold spraying, a double-inclined mixing nozzle is connected obliquely and fixedly with a side surface of a third half-mold through a lateral sealing structure and connected with a side surface of a first half-mold in an inclined and sealing manner, side faces of a first half-mold and the third half-mold are respectively provided with installation inclined surfaces. A lateral sealing structure includes a mounting plate and a sealing member. The sealing member is sleeved on the double-inclined mixing nozzle and is in transition fit with the double-inclined mixing nozzle and the mounting plate respectively. A butt sealing groove provided on the installation inclined surface of the first half-mold and is in sealing fit with the mounting plate.

In-mold spraying system and process method

The present invention discloses a model-free optimization method of process parameters of injection molding to solve the problems of frequent tests required and performing adaptive adjustment on different parameters in the existing optimization method. The method need not build a surrogate model between a product quality index and a process parameter to render the process parameter to converge nearby the optimal solution by an on-line iteration method. The present invention calculates the gradient direction of a current point by an iterative gradient estimation method, and uses adaptive moment estimation algorithm to allocate an adaptive step for each parameter. The method can significantly reduce the cost and time required in the process parameter, which greatly helps improving the optimization efficiency of process parameters of injection molding.

Model-free optimization method of process parameters of injection molding

Growing community of inventors

Hangzhou, China

Jianguo Zheng