Method and apparatus for joining the ends of webs of packaging m

Details Method and apparatus for joining the ends of webs of packaging m Method and apparatus for joining the ends of webs of packaging m

1992-02-28

1994-05-31

Will, Thomas B.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 585, B65H 1918

Patent

active

053162307

ABSTRACT:
When a web of packaging material is fed to a folding turret (11), it is intended to change the web of material when the reel is empty with as little manual labour as possible. For this purpose, there is provided a severing and connecting unit (17), in which a running-off web (15) is automatically severed and connected to a connecting web (16) which is held ready. In order to join the webs in the proper position, a marking (mark 43) of the running-web (15) is scanned while the conveying speed is greatly reduced. After the marking has been detected, the web is stopped and the severing cut is applied while it is simultaneously joined to the connecting web (16) which is held ready precisely in the proper position. During this change of webs, the folding turret (11) can continue to operate, if a sufficient web store is present. It is, however, also possible to employ a loop store (18) with a smaller capacity ana to stop the folding turret (11) or a blank unit (12) for producing blanks for a short period.

REFERENCES:
patent: 3024157 (1962-03-01), Beerli
patent: 3995791 (1976-12-01), Schoppee
patent: 4151403 (1979-04-01), Woolston
patent: 4262855 (1981-04-01), Haag
patent: 4645558 (1987-02-01), Sato et al.
patent: 4722489 (1988-02-01), Wommer
patent: 4757951 (1988-07-01), Ludszeweit
patent: 4848691 (1989-07-01), Muto et al.
patent: 5133511 (1992-07-01), Mack et al.
patent: 5190234 (1993-03-01), Ezekiel

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