초록 ▼

A machine for the manufacturing of moulded articles of plastic material, in particular of helmets for motor cyclists, includes at least two moulds and at least a counter-mould for the forming of the articles, the moulds and counter-mould(s) defining between themselves moulding cavities of different

A machine for the manufacturing of moulded articles of plastic material, in particular of helmets for motor cyclists, includes at least two moulds and at least a counter-mould for the forming of the articles, the moulds and counter-mould(s) defining between themselves moulding cavities of different shapes. The moulds and the counter-moulds, excepting the first one, are each connected with a feeder of a different plastic material, and the moulds can be moved into alignment with the counter-moulds, for the moulding of respective superimposed layers of different plastic materials by sintering with steam. One mould is suitable to be positioned in correspondence of a zone of unloading of the article produced while at least another mould is in its forming position.

대표청구항 ▼

Machine for the manufacturing of moulded articles of plastic material, in particular of helmets for motor cyclists, said machine comprising: at least two moulds, and at least one counter-mould to be coupled with each of said least two moulds for the forming of said articles, each of said at least tw

Machine for the manufacturing of moulded articles of plastic material, in particular of helmets for motor cyclists, said machine comprising: at least two moulds, and at least one counter-mould to be coupled with each of said least two moulds for the forming of said articles, each of said at least two moulds and said at least one counter-mould defining moulding cavities therebetween, at least two of said at least two moulds and said at least one counter-mould being connected with feed means having a different pre-foamed plastic material, each of said at least two moulds being movable into alignment with said at least one counter-mould in a position for the moulding of respective at least partially superimposed layers of different foamed plastic material by sintering of said material, steam means for supplying steam impulses to said moulding cavities during moulding of the material at each heating of the mould cavities said means being positioned to ensure sintering of the material of each layer of material and one of said at least two moulds being positioned for unloading of an article produced while at least another of said at least two moulds is in another position coupled with the counter-mold for moulding and sintering of the respective material.