06-03-2014 дата публикации
Номер: US20140065256A1
Method and apparatus for cooling a heated mould () of a device () for blow-moulding thermoplastic containers, the device including: 112141610. Method for cooling a heated mould ( , , ) of a device () for blow-moulding thermoplastic containers , the device comprising:{'b': 12', '14', '16', '18', '20', '28', '18, 'a mould (, , ) having an internal face which delimits a moulding cavity () and which comprises an external face (, ) which surrounds the moulding cavity ();'}heating means for heating the mould to a determined temperature and which are deactivated when the cooling method is implemented;{'b': 12', '14', '16', '20', '28, 'characterized in that the mould (, , ) is cooled by circulating a heat-transfer fluid directly in contact with the external face (, ) thereof.'}22028121416. Method according to claim 1 , characterized in that the heat-transfer fluid is formed of a pressurized gas which under does an expansion as it circulates against the external face ( claim 1 , ) of the mould ( claim 1 , claim 1 , ).3121416182028. Method according to claim 1 , characterized in that the heating means are formed by electrical resistances which are interposed in the thickness of the mould ( claim 1 , claim 1 , ) between the moulding cavity () and the external face ( claim 1 , ).410. Moulding device () for implementing the method according to claim 1 , in which:{'b': 12', '14', '16', '26', '18', '28', '20', '12, 'the mould () is formed by the union of two half-moulds (, ) each comprising a union face () in which part of the moulding cavity () is formed and an opposite external face () that forms part of the external face () of the mould ();'}{'b': 14', '16', '40', '22', '24', '44', '42', '40', '28', '14', '16, 'each half-mould (, ) is fixed in a housing () of an associated support (, ) with an empty space () reserved between the bottom () of the housing () and the external face () of the half-mould (, );'}{'b': 10', '50', '44', '28', '14', '16', '42', '40, 'characterized in ...
Подробнее