Systems and methods for threading a hot coil on a mill
First Claim
Patent Images
1. A method of threading a metal substrate on a rolling mill comprising:
- receiving a coil of the metal substrate;
uncoiling the metal substrate from the coil;
guiding the metal substrate to a work stand of the rolling mill with a threading system, wherein guiding the metal substrate to the work roll comprises;
guiding the metal substrate to a threading carriage of the threading system;
gripping the metal substrate with the threading carriage; and
moving the threading carriage towards the work stand,wherein the threading carriage comprises a pair of gripping rolls, and wherein gripping the metal substrate with the threading carriage comprises directing the metal substrate between the pair of gripping rolls and gripping the metal substrate with the gripping rolls,wherein the pair of gripping rolls grip the metal substrate at a position that is offset from a leading edge of the metal substrate such that when the leading edge is fed into a roll gap of the work stand, the threading carriage is spaced apart from work rolls of the work stand, andwherein the method further comprises adding stiffness to the metal substrate by adding a diameter profile along a length of the gripping rolls such that the metal substrate comprises at least one non-planar lateral curvature across a width of the metal substrate while guiding the metal substrate to the work stand.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods of threading a metal substrate on a rolling mill include receiving a coil of the metal substrate. The method also includes uncoiling the metal substrate from the coil while the coil and guiding the metal substrate to a work stand of the rolling mill with a threading system.
-
Citations
11 Claims
-
1. A method of threading a metal substrate on a rolling mill comprising:
-
receiving a coil of the metal substrate; uncoiling the metal substrate from the coil; guiding the metal substrate to a work stand of the rolling mill with a threading system, wherein guiding the metal substrate to the work roll comprises; guiding the metal substrate to a threading carriage of the threading system; gripping the metal substrate with the threading carriage; and moving the threading carriage towards the work stand, wherein the threading carriage comprises a pair of gripping rolls, and wherein gripping the metal substrate with the threading carriage comprises directing the metal substrate between the pair of gripping rolls and gripping the metal substrate with the gripping rolls, wherein the pair of gripping rolls grip the metal substrate at a position that is offset from a leading edge of the metal substrate such that when the leading edge is fed into a roll gap of the work stand, the threading carriage is spaced apart from work rolls of the work stand, and wherein the method further comprises adding stiffness to the metal substrate by adding a diameter profile along a length of the gripping rolls such that the metal substrate comprises at least one non-planar lateral curvature across a width of the metal substrate while guiding the metal substrate to the work stand. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A system for threading a metal substrate on a rolling mill comprising:
-
a threading carriage comprising a gripper configured to grip a metal substrate; and a track extending between an unwind mandrel and a work stand of the rolling mill, wherein the threading carriage is movable along the track and relative to the unwind mandrel, and wherein the threading carriage is configured to guide and apply tension to the metal substrate between the unwind mandrel and the work stand, wherein the gripper comprises a pair of gripping rolls configured to grip the metal substrate, and wherein each gripping roll of the pair of gripping rolls comprises a varying diameter along a length of the gripping roll such that the gripping rolls impart at least one non-planar lateral curvature across a width of the metal substrate. - View Dependent Claims (10, 11)
-
Specification