| 摘要 |
The invention relates to a device comprising a first sector (5) by means of which the biaxially oriented tube (1) and the gasket (12) are inserted, a second sector (14) of diameter greater than that of the first sector (5), and a third sector (15) concentric with the second sector (14). The first sector (5) is formed by at least three segments (6, 7, 8) separated by insulating washers (9, 10, 11), such that at least two of the segments (10, 11) of the first sector (5), the second sector (14) and the third sector (15) are connected to heating means (21) and/or to cooling means (22) controlled by a control unit (20) allowing the temperature of said segments (10, 11) and sectors (14, 15) to be varied selectively and independently and, consequently, that of the tube in order to assist the shaping of the mouth with the integrated gasket (12), preventing the disorientation of the tube.
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