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US 2015/0306648 A1Published application
Leveler equipment and sheet material flattening method
AssigneeJp Steel Plantech Co.
InventorsKeizo ABE, Tomohiro ISHIDOU
Life of this patent
Estimating the term…
Abstract
Leveler equipment includes a leveler body, a first roll cassette for a roller leveler, and a second roll cassette for a tension leveler. The roller leveler is formed when the first roll cassette is attached to the leveler body, and the tension leveler is formed when the second roll cassette is attached to the leveler body.
Claims10
Leveler equipment for flattening sheet material, comprising:
- a leveler body for flattening the sheet material, the leveler body including a pressing mechanism and a housing;
- a first roll cassette including upper and lower sets of roller-leveler leveling rolls, the first roll cassette being configured to be able to be attached to and detached from the leveler body;
- and
- a second roll cassette including upper and lower sets of tension-leveler leveling rolls, the second roll cassette being configured to be able to be attached to and detached from the leveler body, wherein:
- the first roll cassette and the second roll cassette are interchangeable;
- a roller leveler is formed when the first roll cassette is attached to the leveler body;
- a tension leveler is formed when the second roll cassette is attached to the leveler body;
- and
- the leveler equipment further comprises
- a pair of bridle roll units provided on an entry side and a delivery side of the leveler body and each having bridle rolls;
- and
- a controller configured to, when the roller leveler is formed, control the leveler equipment so as to flatten the sheet material by causing the pressing mechanism to apply pressing force to the sheet material via the upper and lower sets of roller-leveler leveling rolls in a state where the sheet material is passed between the upper and lower sets of roller-leveler leveling rolls of the first roll cassette without applying tensile force to the sheet material via the bridle rolls, and configured to, when the tension leveler is formed, control the leveler equipment so as to flatten the sheet material by causing the pressing mechanism to apply pressing force to the sheet material via the upper and lower sets of tension-leveler leveling rolls in a state where the sheet material is passed between the upper and lower sets of tension-leveler leveling rolls of the second roll cassette while applying tensile force to the sheet material via the bridle rolls.
9 more elements
(canceled)
A sheet material flattening method of flattening sheet material, comprising:
- changing a first roll cassette attached to a leveler body to a second roll cassette to form a tension leveler;
- and
- changing the second roll cassette attached to the leveler body to the first roll cassette to form a roller leveler in leveler equipment including:
- the leveler body for flattening the sheet material, the leveler body including a pressing mechanism and a housing;
- the first roll cassette having upper and lower sets of roller-leveler leveling rolls, the first roll cassette being configured to be able to be attached to and detached from the leveler body;
- the second roll cassette having upper and lower sets of tension-leveler leveling rolls, the second roll cassette being configured to be able to be attached to and detached from the leveler body;
- and
- a pair of bridle roll units provided on an entry side and a delivery side of the leveler body and each having bridle rolls,
- wherein
- the sheet material flattening method further comprises:
- when the roller leveler is formed by attaching the first roll cassette to the leveler body, flattening the sheet material by causing the pressing mechanism to apply pressing force to the sheet material via the upper and lower sets of roller-leveler leveling rolls in a state where the sheet material is passed between the upper and lower sets of roller-leveler leveling rolls of the first roll cassette without applying tensile force to the sheet material via the bridle rolls;
- and
- when the tension leveler is formed by attaching the second roll cassette to the leveler body, flattening the sheet material by causing the pressing mechanism to apply pressing force to the sheet material via the upper and lower sets of tension-leveler leveling rolls in a state where the sheet material is passed between the upper and lower sets of tension-leveler leveling rolls of the second roll cassette while applying tensile force to the sheet material via the bridle rolls.
10 more elements
9-10. (canceled)
Dependencies are inferred from the claim text.