Method of making a multiple-layered plastic part

摘要

In some embodiments, a tool includes, in an injection molding machine, a movable internal core configured to receive a molded plastic layer thereon, the molded plastic layer having a thickness. The tool also comprises an injection nozzle configured to inject plastic material over the movable internal core to form the molded plastic layer; an ejection plate connected to the movable internal core; and multiple, movable support plates each having a thickness. The multiple, movable support plates are located behind the ejection plate. A movable support plate of the multiple, movable support plates is configured to determine the thickness of the molded plastic layer.

主权项

1. A method of making a multiple-layered plastic part, comprising:
a) injecting a material onto an internal core of a tool to form a molded layer, the tool comprising an ejector plate connected to the internal core and support plates located behind the ejector plate opposite the internal core, each support plate having a thickness; b) opening the tool and removing a support plate from behind the ejector plate; c) closing the tool, wherein a gap having a thickness is created in the tool, the thickness of the gap being determined by the thickness of the support plate removed in b); d) molding a further layer over the molded layer and within the gap, the thickness of the further layer being determined by the thickness of the support plate removed in b); and repeating b) through d) to produce a molded multiple-layered plastic part.