| 摘要 |
The invention concerns an oven ( 1 ) for heating moving thermoplastic blanks (preforms, intermediate containers), comprising conveying means ( 2 ) supporting and moving the blanks sequentially while rotating each of them about its own axis and heating means ( 3 ) arranged laterally to said conveying means ( 2 ) for heating the moving blank bodies; the conveying means ( 2 ) include at least two parallel conveying branches ( 4, 5 ), proximate each other and having opposite conveying directions, said two branches being travelled along one after the other by the blanks; the heating means ( 3 ) are arranged between said two conveying branches ( 4, 5 ) so as to heat simultaneously on both sides the blanks moving in opposite directions respectively on said two branches.
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