Sheet roll forming method, and running cutter and round bender applied thereto
AssigneeSungwoo Hitech Co., Ltd.
InventorsMin Woo KIM, Bong Kun SON
Life of this patent
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Abstract
A sheet roll forming method is disclosed. The sheet roll forming method includes an uncoiling step for uncoiling a coil by an uncoiler provided at a start of a process line, a straightening step for straightening the coil from the uncoiler to be a flat panel, a piercing step for forming holes for various purposes in the panel fed from the straightening step by a piercing press, a sheet roll forming step for cutting the panel to be a sheet with a predetermined dimension by a running cutter and for successively bending the cut sheet to be a shaped beam by a multi-stage roll forming unit, and a bending step for curvature forming the shaped beam to be a shaped product by a round bender.
Claims15
A sheet roll forming method comprising:
- an uncoiling step for uncoiling a coil by an uncoiler provided at a start of a process line;
- a straightening step for straightening the coil from the uncoiler to be a flat panel;
- a piercing step for forming holes for various purposes in the panel fed from the straightening step by a piercing press;
- a sheet roll forming step for cutting the panel to be a sheet with a predetermined dimension by a running cutter and for successively bending the cut sheet to be a shaped beam by a multi-stage roll forming unit;
- and
- a bending step for curvature forming the shaped beam to be a shaped product by a round bender.
A running cutter comprising:
- a synchronizing unit including a slider base slidable along a rail disposed on a base provided to the process line, and a synchronizing motor configured on the base for driving a screw shaft connected with the slide base through a screw housing;
- and
- a cutting unit including a lower cutting mold disposed on the slide base, an upper cutting mold disposed above of the lower cutting mold and a blanking cylinder equipped to the slide base through a frame for driving the upper cutting mold,
- wherein the running cutter cuts the panel with a predetermined dimension to be the sheet operating synchronized with feeding speed of the panel.
A round bender comprising a plurality of upper and lower bending rollers equipped to a frame disposed on a base in the process line along a predetermined curvature radius,
- wherein the lower bending rollers disposed outer radius of the curvature are smaller than the upper bending rollers in diameters so as that two lower bending rollers are disposed corresponding to one upper bending roller.
Dependencies are inferred from the claim text.