Surface winder
First Claim
1. A surface winder having plural winding devices for winding rolls from a web of sheet material, each winding device including a pair of spaced supporters for supporting a winding core rotatably, a rider roll for pressing a wound roll during winding and a pair of rotatable drums for supporting and rotating the wound roll during winding, characterized by(a) one drum of said pair of drums of each winding device being capable of attracting a portion of the web to its circumferential surface by suction,(b) web guide means disposed below the winding devices operative to direct the web selectively to the drums of one or the other of said winding devices,(c) a cutting device disposed upstream of said web guide means to sever the web periodically, thereby producing a cut web having a leading end portion,(d) web feeding means operative to deliver the web, after it has been severed, to said web guide means and(e) adhesive application means disposed adjacent each drum capable of attracting the web by suction,(f) said adhesive application means being operative to form an adhesive layer on the leading end portion of the web when said end portion is on said drum.
1 Assignment
0 Petitions
Accused Products
Abstract
A surface winder for a web of sheet material which performs transfer of winding operation from a winding device to another winding device without stopping of the operation or slowing down of the speed of operation. The surface winder comprises plural winding devices, web guide means, a cutting device, web feeding means and means for forming an adhesive layer on the surface of a web. The web guide means are capable of delivering a leading end portion of the web at the winding devices, and the feeding means are capable of feeding the web to the guide means by way of the cutting device.
23 Citations
9 Claims
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1. A surface winder having plural winding devices for winding rolls from a web of sheet material, each winding device including a pair of spaced supporters for supporting a winding core rotatably, a rider roll for pressing a wound roll during winding and a pair of rotatable drums for supporting and rotating the wound roll during winding, characterized by
(a) one drum of said pair of drums of each winding device being capable of attracting a portion of the web to its circumferential surface by suction, (b) web guide means disposed below the winding devices operative to direct the web selectively to the drums of one or the other of said winding devices, (c) a cutting device disposed upstream of said web guide means to sever the web periodically, thereby producing a cut web having a leading end portion, (d) web feeding means operative to deliver the web, after it has been severed, to said web guide means and (e) adhesive application means disposed adjacent each drum capable of attracting the web by suction, (f) said adhesive application means being operative to form an adhesive layer on the leading end portion of the web when said end portion is on said drum.
Specification