Spinning machine with reduced loss of fibre - has double apron drafting with suction roller at output

摘要

A spinning machine has a double apron drafting zone with output through a roller pair having another double apron running at the same speed. The bottom apron runs around the two bottom rollers of the output, and the top final roller has a ring form suction to the yarn. The input roller pair leads to a double apron pair and output. The output bottom roller is driven at the same speed as the roller which is surrounded by the apron working in conjunction with the top apron. The top roller is hollow, and has holes in a line around the circumference, to coincide with the section over an arc of 60 deg. in the baffle. An adaptor fits into the centre of this roller to provide the necessary airflow. The sector is formed as a hollow disc, which runs in a groove round the inside of the cylindrical part of the roller, and this forms a seal for the suction. ADVANTAGE - The system reduces hairiness, avoids loss of fibre, creates fewer breaks and improves the quality of the yarn, along with a high draft