| 摘要 |
<p>A description is given of a weaving machine (1) comprising two temples (2) whose axis is parallel to the weft threads and which are located at the lateral edges of the cloth (5), a cylindrical cloth-deflecting bar (6) on which the cloth (5) presses around an arc of contact ( alpha >i<) before winding around a haul-off roll (7) on which one or more back-up rolls (8, 9) press, in which machine the cloth-deflecting bar (6) is composed of a central cylindrical portion which connects coaxially on either side with two terminal portions next to the areas where the temples (2) are installed, the terminal portions having throughout their length a cross section which varies in shape proceeding from their ends adjacent to the central portion towards the free ends in such a way that the position, shape and/or amplitude of the said arc of contact ( alpha >i<) vary, causing a variation in the tension transmitted to the corresponding areas of the cloth (5) by the haul-off roll (7), such that it varies from a minimum value (T>m<) at the ends of the terminal portions adjacent to the central portion (6t) to a maximum value (T>M<) at their free ends.</p> |
