US 6,644,086 B1 · Retro-fit roll forming mill with jack screw

Abstract

A rolling mill apparatus for forming a web of material includes a die stand having an upper die assembly and a lower die assembly, the die stand bending the web to a predetermined formation angle as the web passes between the upper die assembly and the lower die assembly. A movement apparatus is utilized for selectively moving the upper die assembly in a vertical direction, thereby adjusting a vertical clearance between the upper die assembly and the lower die assembly. A pin is fixed to the upper die assembly and a cam block having a groove formed at a predetermined orientation angle is also provided. The pin travels in the angled groove when the upper die assembly is moved in the vertical direction and causes the upper die assembly to move horizontally. The predetermined orientation angle of the block is approximately equal to the predetermined formation angle.

Claims18

Dependent claims

A rolling mill apparatus for forming a web of material, comprising:

a die stand including an upper die assembly and a lower die assembly, said die stand bending said web to a predetermined formation angle as said web passes between said upper die assembly and said lower die assembly;
a movement means for selectively moving said upper die assembly in a vertical direction, thereby adjusting a vertical clearance between said upper die assembly and said lower die assembly;
a pin fixed to said upper die assembly;
a cam block having an angled groove formed therein at a predetermined orientation angle, said pin travelling in said angled groove when said upper die assembly is moved in said vertical direction thereby causing said upper die assembly to move horizontally, wherein the combination of said vertical and said horizontal movement produces a diagonal movement of said upper die assembly in relation to said lower die assembly;
and
wherein said predetermined orientation angle of said block is approximately equal to said predetermined formation angle.

3 more elements

A method of continuously forming a web of material as said web passes through a die stand including an upper die assembly and a lower die assembly, said die stand being operatively connected to a movement means, a pin fixed to said upper die assembly and a cam block having a groove formed therein, said method comprising the steps of:

bending said web to a predetermined formation angle as said web passes between said upper die assembly and said lower die assembly;
operating said movement means to selectively move said upper die assembly in a vertical direction to thereby adjust a vertical clearance between said upper die assembly and said lower die assembly;
forming said groove to be at a predetermined orientation angle to a longitudinal axis of said cam block;
orienting said pin so as to travel in said groove when said upper die assembly is moved in said vertical direction thereby causing said upper die assembly to move horizontally, wherein the combination of said vertical and said horizontal movement produces a diagonal movement of said upper die assembly in relation to said lower die assembly;
and
setting said predetermined orientation angle of said block to be approximately equal to said predetermined formation angle.

3 more elements

Dependencies are inferred from the claim text.

Retro-fit roll forming mill with jack screw

Life of this patent

Retro-fit roll forming mill with jack screw

Life of this patent

Abstract

Claims18