Arrangement for winding of webs

An arrangement for winding a web onto a roll core, comprising:

• first and second support drums and a rider roll defining a space therebetween for the roll core onto which the web is to be wound;
• means to insert a new roll core into the space between the two support drums during a final stage of a roll winding process from a position beneath a roll made in the process;
• means for leading said web from below said support drums up between said support drums in the space therebetween onto the roll core;
• a web cutter for transverse cutting of the web at a position above the new roll core after insertion thereof between said support drums;
• means for removal of the roll made in the process after cutting of the web by said web cutter;
• and
• a plurality of pneumatic guiding units for creating pneumatic jets to guide said web end tightly around the new roll core including a first guiding unit for guiding a front part of the transversely cut web onto the new roll core, after first guiding unit being coupled with said web cutter, a second guiding unit to wrap the cut web and move it between said second support drum and the new roll core to a position thereon between said support drums, and a third guiding unit to wrap the cut web and guide it between said first support drum and the new roll core to complete a first layer onto the new roll core.

In an arrangement for winding a web onto a roll core in a two drum winder having two support drums and a rider roll surrounding the web core, the improvement comprising:

• means for supplying a new roll core between a finished roll and the support drums from a position below said rider roll and from a side of said two support drums;
• a web cutter for cutting the web of the finished roll above the new roll core, and pusher means coupled with said web cutter for removal of the fnished roll after cutting by said web cutter;
• and peripheral pneumatic guide means including a first guide positioned on said pusher means between one of said support drums and said rider roll, a second guide positioned between said support drums thereabove, and a third guide positioned between said pair of support drums therebelow, to provide successive pneumatic jets onto a leading web edge after it is cut by said web cutter from a previously completed wound web roll to cause the leading edge to be placed onto said new roll core after passing between a first of said two support drums and said new roll core, then moved between said rider roll and said new roll core to a position between a second of said two support drums and said new roll core, and between an incoming web portion on said first support drum and said new roll core and being held thereto solely by the continuously subsequently fed web from said first support drum.