Patent ID: 7435076

Claim:
A plant for thermally conditioning moulded plastic items for use in blow mould plants comprising: a chain or other continuous conveying device forming a spiral-type path suitable for conveying at least one plastic item; at least one duct through which said at least one plastic item can be conveyed and that is crossed by a length of said chain or other continuous conveying device and is suitable for carrying out at least a first thermal conditioning stage on said at least one plastic item; wherein said chain or other continuous conveying device defines a path comprising a feeding section for feeding said at least one plastic item through said at least a first thermal conditioning stage, a removing section for removing said at least one plastic item from said at least a first thermal conditioning stage for a predetermined amount of time in order to redistribute the temperature inside said at least one plastic item with a predetermined degree of uniformity, and a refeeding section for refeeding said at least one plastic item into said at least a first thermal conditioning stage, wherein said at least one duct is crossed by at least two sections, of said chain or other continuous conveying device, placed side by side, wherein said at least two sections belong each to a different spiral of said chain or other continuous conveying device.