Thin walled plastic mouldings are produced by forming a mould skin and removing it from the mould using gas under pressure

摘要

An arrangement for the production of three dimensional, thin walled mouldings, comprises a mould (1) which holds liquid or powder form plastic material. A gas tight mould skin (2) is formed from the liquid or powder plastic material, and is removed using gas (3) under pressure. An arrangement for the production of three dimensional, thin walled mouldings, comprises a mould (1) which holds liquid or powder form plastic material. A gas tight mould skin (2) is formed from the liquid or powder plastic material, and is removed using gas (3) under pressure. The gas is introduced between the inside of the mould and the outside of the skin, and releases the skin in stages. The gas forms a hollow chamber (4), and a gripping unit (6) is located on the non-visible side of the skin.