Rewinder apparatus and method
AssigneeC.G. Bretting Manufacturing Co., Inc.
InventorsTad T. Butterworth, Gerald L. Fellows
Life of this patent
Estimating the term…
Abstract
A rewinder having a first winding roll that transports and supports the web, and a second winding roll located a distance from the first winding roll to define a nip therebetween. The rewinder also include at least one core support plate that is curved for receiving and guiding cores adjacent the first winding roll, a contact finger located adjacent the first winding roll, and a web separation bar adjacent the first winding roll and movable into pressing relationship with the web to press the web against the contact finger to separate the web. In some embodiments, the contact finger is recessed within the first winding roll such that the web separation bar presses the web only against the contact finger to separate the web.
Claims73
An apparatus capable of winding a web onto a core, the apparatus comprising:
- a first winding roll;
- a second winding roll located a distance from the first winding roll to define a winding nip therebetween;
- a core support plate on which the core is received and moved toward the winding nip;
- a contact finger located adjacent the first winding roll;
- and
- a web separation bar movable toward the web to press the web against the contact finger to separate the web.
A method of winding a web onto a core in a rewinder, the rewinder winding a web of material adjacent at least one of a first winding roll and a second winding roll, the first and second winding rolls defining a nip in the rewinder, the method comprising:
- passing the web over a surface of the first winding roll;
- passing the web across a contact finger located adjacent to the first winding roll;
- moving a core onto at least one core support plate and toward the nip;
- moving a web separation bar toward the web, pressing the web between the web separation bar and the contact finger;
- separating the web into a leading edge and a trailing edge;
- moving the web separation bar away from the web;
- and
- winding the leading edge around the core.
An apparatus capable of winding a web onto a core, the apparatus comprising:
- a first winding roll rotatable about a first axis;
- a second winding roll located a distance from the first winding roll to define a winding nip therebetween;
- and
- a web separation bar having a tip, the web separation bar rotatable about a second axis to press the web between the tip and a surface on the opposite side of the web to separate the web, the tip defining a travel path during rotation of the web separation bar;
- wherein the position of the travel path relative to the first axis is adjustable.
A method of winding a web onto a core in a rewinder, the rewinder winding a web of material adjacent at least one of a first winding roll and a second winding roll, the first and second winding rolls defining a nip in the rewinder, the first winding roll rotatable about a first axis, the method comprising:
- passing the web over a surface of the first winding roll;
- moving a core onto at least one core support plate and toward the nip;
- rotating a web separation bar about a second axis to press the web between a tip of the web separation bar and a surface on the opposite side of the web;
- defining a travel path with the tip during rotation of the web separation bar;
- separating the web into a leading edge and a trailing edge;
- moving the web separation bar away from the web;
- winding the leading edge around the core;
- and
- adjusting the position of the travel path relative to the first axis.
An apparatus capable of winding a web onto a core, the apparatus comprising:
- a first winding roll;
- a second winding roll located a distance from the first winding roll to define a winding nip therebetween;
- and
- a web separation bar including a base and a tip, wherein the base slidably receives the tip coupling the tip to the base, and wherein the web separation bar is movable toward the web to press the web between the tip and a surface on the opposite side of the web.
A method of assembling a web separation bar for use in a rewinder, the rewinder winding a web of material adjacent at least one of a first winding roll and a second winding roll, the first and second winding rolls defining a nip in the rewinder, the rewinder further including a web separation bar movable to press the web between a tip of the web separation bar and a surface on the opposite side of the web to separate the web into a leading edge and a trailing edge, the method comprising:
- providing a base and a tip;
- and
- sliding the tip into the base, the engagement between the tip and the base coupling the tip to the base.
An apparatus capable of winding a perforated web onto a core, the web moving through the apparatus at a web velocity, the apparatus comprising:
- a first winding roll;
- a second winding roll located a distance from the first winding roll to define a winding nip therebetween;
- a core support plate on which the core is received and moved toward the winding nip;
- and
- a web separation bar movable toward the web to separate the web;
- wherein the web separation bar comprises a base and a tip, and wherein the tip contacts the web on both sides of a perforation and breaks the web along the perforation.
A method of winding a perforated web onto a core in a rewinder, the rewinder winding a web of material adjacent at least one of a first winding roll and a second winding roll, the first and second winding rolls defining a nip in the rewinder, the method comprising:
- passing the web over a surface of the first winding roll;
- moving a core onto at least one core support plate and toward the nip;
- moving a web separation bar toward the web, pressing the web between the web separation bar and a surface on the opposite side of the web;
- contacting the web on both sides of a perforation with the separation bar, separating the web into a leading edge and a trailing edge;
- moving the web separation bar away from the web;
- and
- winding the leading edge around the core.
Dependencies are inferred from the claim text.