An Extrusion Blow Molding Process Optimization Method Combining Quality Objectives and Equipment Performance

A technology of extrusion blow molding and equipment performance, applied in the direction of instruments, adaptive control, control/regulation systems, etc., can solve the problems of poor equipment operation stability, low product quality qualification rate, lack of theoretical basis, etc., and achieve stable production process. , saving time and improving economic efficiency

Active Publication Date: 2019-07-23
XI AN JIAOTONG UNIV
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Problems solved by technology

In traditional industrial practice, the blow molding process parameter formulation method based on the trial and error method based on experience, due to the lack of theoretical basis, is one-sided and causes a great waste of resources
At the same time, the current research on process optimization is to obtain the process parameters that meet the product quality indicators through various optimization methods. Whether the designed process parameters match the equipment performance is not considered, and the stability of the equipment operation is poor, which leads to direct results. Is the product quality pass rate is low

Method used

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  • An Extrusion Blow Molding Process Optimization Method Combining Quality Objectives and Equipment Performance
  • An Extrusion Blow Molding Process Optimization Method Combining Quality Objectives and Equipment Performance
  • An Extrusion Blow Molding Process Optimization Method Combining Quality Objectives and Equipment Performance

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Embodiment Construction

[0036] The present invention will be further explained below in conjunction with specific embodiments and accompanying drawings.

[0037] see figure 1 , the present invention comprises the following steps:

[0038] 1) Obtain real-time parameters of the production process, mainly including screw speed, mold temperature, oil temperature, inflation pressure, and establish a database for storage;

[0039] 2) Based on the response surface method, an optimization is carried out according to the quality target constraints: the first step is to determine the optimization target (quality index) and influencing factors (i.e. real-time parameters) according to the accumulated data statistics, and determine the interval range of each influencing factor, namely:

[0040] The variable y is the optimization target, and the variable x i is the impact factor, i=(1,2,...,p-1,p), the test is called p-factor test, each impact factor x 1 ,...,x p Both have a range, and the upper and lower boun...

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Abstract

The invention discloses a method for optimizing an extrusion blow molding process through integrated quality target and device performance. The method comprises the steps that first optimizing is carried out through a quality target, and the regression equation of process parameters and quality indexes is established; the fluctuation situation of the process parameters is statistically analyzed when set parameters are different, and at the same time equation fitting is carried out; and finally, on the basis of the first optimizing, second optimizing is carried out by considering the work performance of a device. According to the invention, the stability of the device throughout the operation is ensured; the overall product quality is improved; and the production efficiency of an enterprise is improved.

Description

technical field [0001] The invention belongs to the field of process parameter optimization, and relates to a method for optimizing process parameters considering equipment performance, in particular to an extrusion blow molding process optimization method that integrates quality objectives and equipment performance. Background technique [0002] With the development of science and technology, product quality is the basis for the survival of enterprises. It is related to the survival and development of enterprises and has always been one of the most concerned issues of enterprise managers. Good process parameter setting is to ensure product quality and avoid batch production. The key to scrapping. Therefore, formulating a set of blow molding process parameters that can not only meet the product quality indicators, but also ensure the product quality pass rate is of great benefit to improving the competitiveness of enterprises. In traditional industrial practice, the trial-a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 姜洪权高建民高智勇张雪微梁泽明姜朋高瑞琪
Owner XI AN JIAOTONG UNIV
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