Stretch film dispenser for orbital pallet wrappers
AssigneeTAB Industries, LLC
InventorThomas A. Brizek
Life of this patent
Estimating the term…
Abstract
An orbital stretch wrapping apparatus is provided and includes a base frame, a circular ring mounted on the base frame and rotatable with respect to the base frame about an axis of rotation, a stretch film dispenser mounted on the circular ring and rotatable with the circular ring about the axis of rotation, the stretch film dispenser having a subframe fixed to the circular ring, a roll of stretch film mounted to the subframe and rotatable with respect to the subframe, a first feed roller mounted to the subframe and rotatable with respect to the subframe, a second feed roller mounted to the subframe and rotatable with respect to the subframe, and a brake member connected to the first feed roller and the second feed roller.
Claims10
An orbital stretch wrapping apparatus, comprising:
- a base frame;
- a circular ring mounted on the base frame and rotatable with respect to the base frame about an axis of rotation;
- a stretch film dispenser mounted on the circular ring and rotatable with the circular ring about the axis of rotation, the stretch film dispenser having:
- (a) a subframe fixed to the circular ring;
- (b) a roll of stretch film mounted to the subframe and rotatable with respect to the subframe, the roll of stretch film being a continuous piece of the stretch film;
- (c) a first feed roller mounted to the subframe and rotatable with respect to the subframe, the first feed roller engaging the stretch film of the roll of stretch film and rotating at a roller speed during rotation of the circular ring at a set speed;
- (d) a second feed roller mounted to the subframe and rotatable with respect to the subframe, the second feed roller engaging the stretch film of the roll of stretch film and rotating at the roller speed during rotation of the circular ring at the set speed;
- and
- (e) a brake member connected to the first feed roller and the second feed roller, the brake member capable of adjusting the roller speed while the circular ring rotates at the set speed.
An orbital stretch wrapping apparatus for wrapping a cargo in a stretch film, comprising:
- a base frame;
- a circular ring mounted on the base frame and rotatable with respect to the base frame about an axis of rotation;
- a stretch film dispenser mounted on the circular ring and rotatable with the circular ring about the axis of rotation, the stretch film dispenser having:
- (a) a subframe fixed to the circular ring;
- (b) a roll of stretch film mounted to the subframe and rotatable with respect to the subframe, the roll of stretch film being a continuous piece of the stretch film;
- (c) a first feed roller mounted to the subframe and rotatable with respect to the subframe, the first feed roller engaging the stretch film of the roll of stretch film and rotating at a first speed during rotation of the circular ring at a set speed;
- and
- (d) a second feed roller mounted to the subframe and rotatable with respect to the subframe, the second feed roller engaging the stretch film of the roll of stretch film and rotating at a second speed faster than the first speed during rotation of the circular ring at the set speed;
- (e) a first gear connected to the first feed roller;
- and
- (f) a second gear connected to the second feed roller and meshed with the first gear, the second that is smaller than the first gear and rotates faster than the first gear;
- and
- a counterweight mounted on the circular ring at a position diametrically opposite the stretch film dispenser.
Dependencies are inferred from the claim text.