Progressive mold pressing technology and device for car door trim panel made of natural fiber composite material

Abstract

The invention discloses a progressive mold pressing technology and a device of an environment-friendly car door trim panel made of a natural fiber composite material. A four-station progressive mold is designed according to the forming characteristics of the car door trim panel made of the natural fiber composite material. The technology specifically comprises the steps as follows: heating core fibrofelt in the first station; heating surface fibrofelt, and performing compression molding forming on a core plate simultaneously in the second station; performing the compression molding forming on a face plate and the core plate, bonding the face plate and the core plate together, and bonding required plastic inserts on the surface of a core layer or a surface layer simultaneously in the third station; and performing punching and blanking operation to obtain the car door trim panel in the fourth station. The production technology overcomes the disadvantages of complicated structure, high cost and low efficiency of a compound mold of the car door trim panel made of the natural fiber composite material, thereby facilitating automatic production.

Description

technical field [0001] The invention relates to a progressive molding process and device for an environment-friendly car door natural fiber composite interior trim panel. The core layer fiber mat and the surface layer fiber mat in the form of continuous strips are preformed, hot-pressed on a multi-station progressive mold, punched and blanked after bonding the plastic inserts, and the composite material interior panel is obtained. Background technique [0002] With the development of science and technology and the continuous improvement of people's awareness of environmental protection, the original car door trim usually contains more plasticizers, which is not conducive to recycling. The overall shape of this type of interior trim panel is regular, but there are grooves, and the local curvature radius is small. It is necessary to install door locks, storage tanks, etc. Layer surfaces bonded with plastic inserts. Usually, the interior panels of automobile doors are mostly ...

AI Technical Summary

Problems solved by technology

Usually, the interior panels of automobile doors are mostly plastic parts, and the corresponding molding method is injection molding; the existing production method of fiber composite interior panels uses sheet-like fiber felt as raw material, and composite molds are used to produce automotive interior panels. , in the production process, a slightly complicated shape will cause the inaccurate size and shape of the interior panel product

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