| 摘要 |
<p>The present invention relates to a dual tenter clip and table assembly (10) for moving, by means of an endless chain (50) consisting of alternating pairs of first chain links (51) and pairs of second chain links (52) rotatably connected by means of pins (53) arranged in parallel to the plane of the rail (60) and perpendicular to the direction of the endless chain’s movement, a polymer material web (100) on a stretching plant or stretching device for stretching said polymer material web (100) at least in a transverse direction (T), said assembly (10) comprising a main clip body (20) comprising a main clip body carriage (22) having a plurality of wheels (24a, 24b, ….) moving the carriage (22) along a rail (60) by means of said endless chain (50) to which the carriage (22) of the main clip body (20) is fixed; said carriage (22) of the main clip body (20) further comprising a tenter table (26) onto which the polymer material web (100) to be stretched is fixed by a tenter clip (28); and said carriage (22) of the main clip body (20) being fixed to a first/an outer chain link (51) of the endless chain (50) by means of a vertical pin (29) positioned in parallel to the pins (53) connecting outer and inner chain links (51, 52) and passing through at least one structural part of the main clip body (20); and said assembly (10) further comprising a secondary clip body (30) comprising a secondary clip body carriage (32), said carriage (32) of the secondary clip body (30) further comprising a tenter table (36) onto which the polymer material web (100) to be stretched is fixed by a tenter clip (38); and said carriage (32) of the secondary clip body (30) being fixed to a second/an inner chain link (52) of the endless chain (50) by means of a vertical pin (39) positioned in parallel to the pins (53) connecting outer and inner chain links (51, 52) and passing through at least one structural part of the secondary clip body (30); wherein outer walls of said carriage (32) of the secondary clip body (30) on both sides opposite to outer walls of one or two adjacent main clip body carriage(s) (22) are shaped in a manner preventing a contact of said outer walls of the secondary clip body carriage (32) to said outer walls of one or two adjacent main clip body carriages (22). The invention also relates to a transverse sheet stretching plant comprising the above dual tenter clip and table assembly (10).</p> |
