Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1987-11-03
1989-08-22
Werner, David
Winding, tensioning, or guiding
Coil holder or support
Spool or core
225106, B65H 1808
Patent
active
048588440
ABSTRACT:
In a method for manufacturing rolls of bags, a web having transverse lines of perforation is wound by means of a winding device. A leading end of the web is first conducted into the winding device which is activated for the winding operation. When a predetermined web length has been sensed, a clamping device clamps the web which is immediately torn off, and a new leading web end is gripped after a certain time delay by means of a gripping device. The finished roll of bags is thereafter released from the winding device which is reset for a new winding operation. Finally, the gripping device is moved past the winding device so that this can catch the web and commence a new winding cycle.
In addition to a winding device and a gripping device, a machine for manufacturing rolls of bags has two clamping jaws which are movable by means of quick-acting pneumatic cylinders into abutment against each other for clamping the web between them so that the web can be immediately severed during the continued winding by means of the winding device.
REFERENCES:
patent: 3122292 (1964-02-01), Ford et al.
patent: 3783750 (1974-01-01), Heimeijer
patent: 3791602 (1974-02-01), Isakson
patent: 3791603 (1974-02-01), Lenius
patent: 4034928 (1977-07-01), McDonald et al.
Fas Converting Machinery Aktiebolag
Werner David
LandOfFree
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