Reel-stick device for winding yarn with regulated pressure, particularly for double-twist twisting frames

A reel-stick arm assembly for winding yarn on twisting frames having an adjusted pressure between a reel (16) and a driving roller (19) rotating at a constant linear speed, comprising a fixed structure (31) integral with:

• a counter-weighting means (35) which counterbalances the effect of the variation in weight of the reel of yarn being formed;
• a means (50) for automatic raising of said reel-stick arm assembly;
• an automatic clamping means (59) for temporary blocking of said reel-stick arm assembly in a raised position and vibration-damping, said means (50) for automatic raising and said automatic clamping means (59) being coordinated together by interlocking means, and said automatic clamping means (59) contacting a circular sector (33) rendered integral with a base (26) of a fork (20) of said reel-stick arm assembly, which rotates with said fork (20), said circular sector (33) further comprising a plate (60), which is in contact with a fixed shoulder (61) and said automatic clamping means (59), both integral with said fixed structure (31) of said reel-stick arm assembly, and said plate (60) having an appendage (62) with a hole (63) that serves for engagement of a terminal end (64) of a mobile element of a device (65) within said automatic clamping means (59) for clamping said reel-stick arm assembly and a seat (67) that is integral with said fixed shoulder (61) within said fixed structure (31) of said reel-stick arm assembly.