Method of replacing and adjusting preprinted strip material on a manufacturing machine
AssigneeG. D. Societa per Azioni
InventorsFulvio Boldrini, Antonio Gamberini
Life of this patent
Estimating the term…
Abstract
A method of replacing a first strip having equally-spaced preprinted graphics with a second identical strip on a manufacturing machine having an input traction unit for feeding the first strip along a first route defined by a first and second branch forming a given angle; the second strip, after being accelerated along the first branch and adjusted in relation to the first strip, being cut and fed on to the second branch by a spoon-shaped guide plate operating in a direction substantially coincident with that of the second branch.
Claims5
A method of adjusting and replacing preprinted strip material on a manufacturing machine, in particular for adjusting and replacing a first run-off strip (3), having a regular sequence of preprinted graphics, with a second strip (62) having preprinted graphics identical to the graphics on the first strip (3), said manufacturing machine (2) having an input traction unit (34) for feeding the first strip (3) to the machine (2) at a given speed along a predetermined first route comprising a first branch and a second branch (26,27) forming a given angle, said traction unit (34) being located along said second branch (27), the method comprising:
- positioning the second strip (62) in overlapping position relative to the first strip (3) along a second route which shares the first branch (26) with the first route, and accelerating the second strip (62) until the second strip (62) reaches a speed equal to the speed of the first strip (3);
- adjusting the second strip (62) relative to the first strip (3) so that the preprinted graphics on the second strip (62) are in proper relation to the graphics on the first strip (3);
- cutting the first strip (3) thereby leaving an end of the first strip (3) overlapping the second strip (62);
- cutting the second strip (62) by means of a first cutting device (80) having a curved guide plate (77) activated in a direction substantially coincident with that of the second branch (27) so as to cut the second strip (62) and form a second strip (62) front end overlapping the first strip (3) end;
- feeding both the end of the first strip (3) and said second strip (62) front end in overlapping arrangement along the second branch (27) towards the traction unit (34) and towards the second cutting device (38);
- when the front end of the second strip (62) reaches the second cutting device (38), cutting off the end of the first strip (3) overlapping the second strip (62) by means of the second cutting device (38);
- and
- removing and disposing of the said cut-off end of the first strip (3) from between the traction unit (34) and the second cutting device (38).
Dependencies are inferred from the claim text.