Model-free weight controlling method for injection molding product

A technology of injection molding and control method, which is applied in the field of model-free control of injection molding product weight, and can solve problems such as low efficiency, sensitivity to noise and interference, and inability to implement
CN102101352AInactive Publication Date: 2011-06-22ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2011-06-22
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a model-free weight controlling method for an injection molding product. In order to solve the problems of frequent operation parameter variation, difficult process modeling and finite model precision and the like during injection molding production, model-free quick product weight control is realized by using the characteristics of low cost and repeated batches of the injection molding production. The method is favorable for reducing the test expenses of a product weight control process and shortening the control time; moreover, the method has significance for improving the weight control efficiency during injection molding and achieving the effects of energy saving and emission reduction during injection molding industrial production.
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Description

technical field

[0001] The invention relates to the field of weight control of injection molded products, in particular to a model-free control method for the weight of injection molded products. Background technique

[0002] Injection molding is a common and important plastic processing method. The weight of molded products is an important quality performance index of injection molded products. The weight control of injection molded products is of great significance to the quality control of products. However, the injection molding process is a complex, multi-stage, multi-variable and non-linear batch production process. There are many factors that affect the weight of injection molded products. At the same time, there are uncertain factors such as noise in the actual production process, which makes it difficult to realize the weight control of injection molded products and the cost is high.

[0003] From the perspective of product quality control, currently in the field...

Claims

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