Back to results
US 11,827,392 B2Granted
Stretch-hood machine
AssigneeSignode Industrial Group LLC
InventorTonny Konstmann
Life of this patent
Estimating the term…
Abstract
Various embodiments of the present disclosure provide a stretch-hood machine configured to optimize reefing device lateral movement and unwinding speed during film stretching to minimize reefing device travel distance and wear on the actuators that move the reefing devices and to reduce the possibility of damaging the film during stretching.
Claims16
A method of operating a stretch-hood machine, the method comprising:
- determining a stretch speed based at least in part on a difference between a first reefing position for a first reefing device and a first wrapping position for the first reefing device;
- determining an unwinding speed based at least in part on the stretch speed;
- moving the first reefing device to the first reefing position;
- reefing a segment of tubular film onto a first reefing finger of the first reefing device;
- and
- after the segment of tubular film has been reefed onto the first reefing finger of the first reefing device:
- moving the first reefing device at the stretch speed from the first reefing position to the first wrapping position such that the first reefing device follows a first designated path and such that the segment of tubular film is stretched;
- and
- driving a first drive roller of the first reefing device at the unwinding speed in an unreefing direction while the first reefing device moves from the first reefing position to the first wrapping position to unreef part of the segment of tubular film from the first reefing finger of the first reefing device.
6 more elements
Dependencies are inferred from the claim text.