Homogeneous ropes, high rebeaming speeds

The rebeaming process of the PRODYE-R convinces by its speed. The possible time saving compared to conventional similar plants is 15 % to 20 %, which can be used for reducing the required number of LONG CHAIN BEAMERS. An important prerequisite for this fact, however, are technical solutions that ensure a homogeneous buildup of the ropes during their passage through the machine. Ropes consisting of threads that stick together considerably, can only be separated slowly after dyeing. Otherwise, it comes to yarn breakages, which have to be repaired by knotting, resulting in inferior quality and efficiency losses during weaving. Special attention is paid to a uniform rope structure already during the feeding of the material to the machine. The BALL WARPER draws the yarns from the bobbins, brings the threads together to form a rope, and winds up the rope in cross lapping to a ball. During this cycle, the computer-controlled system ensures an operation that is gentle to the material, with a constant, smooth run. Afterwards the ropes are removed from the balls, and guided through the dye section. During this procedure, a perfect tension control by load cells facility that is adapted to the material, ensures that the compact, uniform structure of the ropes is not adversely affected. In the dryer section the conventional belts were replaced by motors to ensure a perfect tension control, keeping the right elasticity of the yarn. At the exit of the dryer, a coiler with circular motion ensures a uniform storage/stacking of the ropes in cans. This step also contains design know-how. Coilers with linear bars replace the commonly used mechanic gear coilers, offering highest flexibility instead of long reaction time. Within a very short period, it is possible to adjust the rope twist to different machine speeds and rope weights. The result: yarn compound structures without threads sticking together, that can be separated at high speeds, and that can be wound onto a warp beam.