Patent ID: 7604195

Claim:
A strapping head assembly for a wrapping machine comprising: a central axle having a top, a bottom and a thread formed on the top; a braking tube mounted rotatably around the central axle and having a top and a bottom; a lower securing plate mounted on the bottom of the braking tube; a braking pad attached to the top of the braking tube and having a top; an adjusting base adjustably mounted on the central axle and having a top and a bottom abutting with the top of the braking pad; a biasing member mounted around the top of the central axle and having a top and a bottom abutting against the top of the adjusting base to provide a biasing force to the adjusting base; an adjusting nut screwed with the thread on the top of the central axle and abutting with the top of the biasing member; a strap-holding collar mounted around the top of the central axle; and an upper holding base mounted around the top of the central axle and having an abutting flange formed around and protruding from the upper holding base and mounted over the strap-holding collar.