Shuttle bobbin winder - has a stroke adjustment and self-locking bobbin surface to prevent weft wastage

摘要

The winder, to charge shuttle bobbins, has at least one stroke adjustment (3) for the reciprocating drive (1). It is near the transmission drive units (5,6), between the cam (11) and the winders (9). The base of the flanged bobbin (2) is conical, with a self-locking action for the yarn on its angular zone. The drive levers (8) for all winders (9) are mounted on a common shaft (81), with the stroke adjustment (3) between the cam (11) and the shaft (81). The rocker unit (61) from the cam (11) supports two cams (32,33), adjustable against each other in the drive direction, with curve profiles across the drive direction, and a cam follower (35) which Transmits drive to the shaft (81). The drive levers (8) have an elastic mounting on the shaft (81), with a separate adjustable limit stop (36) for each lever (8). The conical angle of the bobbin (2) base is pitched at 7-15 deg. against the bobbin axis, and the sloping surface is profiled, roughened, or clad with rubber. ADVANTAGE - The assembly reduces weft yarn wastage at the fabric edges.