Band-changing apparatus for a flying band change
AssigneeHoechst Aktiengesellschaft
InventorJoachim Stroszynski
Life of this patent
Estimating the term…
Abstract
A band-changing apparatus for flying band change which consists of two unwinding stations which are arranged adjacent to a band changer. From the respective unwinding stations, a new band and a running-off band are brought together in the band changer in a V-shaped manner from the top downwards through two channels and enter into a pressure-roller unit rotary stops are provided in the channels for controlling movement of the respective bands. The band changer also possesses two rotary crosscutters for cutting the bands to size. The new band is equipped with an adhesive strip which leads to an adhesive bond with the running-off band in the pressure-roller unit.
Claims21
A band-changing apparatus for instituting a flying band change from a running-off band to a new band in an in-line band installation comprising:
- at least a first and a second unwinding station separately positioned from one another, each of said unwinding stations having a band roll rotatably disposed therein, a first band roll serving to hold the new band thereon and a second band roll serving to hold the running-off band thereon;
- a band changer having a first end and a second end;
- feeding means for feeding the new band and the running-off band from said band rolls into the band changer, said feeding means including press-contact roller units;
- means for applying an adhesive layer to the new hand;
- means for applying an adhesive layer to the new band;
- channeling means, which converge in a V-shaped configuration, for channeling said new band and said running-off band from the first end of the band changer downwardly through the second end of the band changer such that said new band and said running-off band converge in said pressure roller unit;
- wherein said channeling means comprises two channels which are positioned in a central portion of said band changer and converge in said V-shaped configuration such that said new band and said running-off band are guided through the press-contact roller units and the channeling means and into the pressure roller unit;
- wherein the new band and the running-off band adhere to each other in the pressure roller unit;
- and
- wherein centers of said band rolls are positioned at a level near lower ends of said channels;
- and
- a pair of rotary stops, each of which is located within one of said two channels near the lower end of the channel, each of said rotary stops being pivotable into and out of the path of movement of one of the new band and the running-off band.
Dependencies are inferred from the claim text.