US 4,027,517 A · Method and apparatus for embossing sheet metal strip and sheet metal panel

Abstract

This specification discloses strip sheet metal panels formed with transverse indentations and longitudinal formations formed therein, with end portions at each end of said panels being free of said transverse indentations; And a method of cold rolling strip sheet metal to form both transverse and longitudinal indentations and formations therein, and discontinuing formation of said transverse indentations at predetermined spaced intervals along such sheet metal, and shearing the sheet metal in measured relation to such spaced intervals; And further dicloses apparatus for embossing sheet metal, in a sheet metal forming line adapted to form both transverse and longitudinal indentations in said sheet metal, and in which said forming line includes sheet metal delivery means, and a plurality of sheet metal roller stands for forming said longitudinal indentations and in which said embossing apparatus incorporates tension roll means located and adapted to receive said sheet metal from said sheet metal delivery means, embossing roll means located to receive said strip from said tension roll means and moving die means cooperating with said embossing roll means thereby to draw said sheet metal into formations on said embossing roll means and thereby form said transverse indentations in an intermediate central region thereof, and, holding roll means adapted to engage said embossed indentations and hold said sheet metal in said formations, said sheet metal thereafter passing through said roller stands for formation of said longitudinal indentations in marginal areas of said strip unaffected by said embossing roll means and means for intermittently disengaging said moving die means from said embossing roll means to permit portions of said sheet metal to pass therearound without formation of said indentations.

Claims23

Dependent claims

The method of cold forming a continuously moving strip of sheet metal to form successive transverse indentations in a central portion thereof and longitudinal formations down the two side portions thereof said method comprising;

forming a series of transverse indentations in a central portion of said strip by the closing action of continuously moving die means at a forming station while said strip sheet metal is moving along a predetermined path, and while simultaneously holding said strip in tension between two spaced points on opposite sides of said forming station whereby to prevent distortion of said strip during formation of said transverse indentations;
subsequently roll forming continuous longitudinal formations in said side portions of said sheet metal strip which remain free of said transverse indentations, said longitudinal formations extending continuously along both said side portions of said strip, and,
intermittently discontinuing said formation of said transverse indentations at predetermined spaced intervals along said sheet metal strip, whereby to leave lengths of said central portion between said continuous longitudinal formations which are flat and planar and free of said transverse indentations at spaced intervals therealong.

Apparatus for forming continuously moving strip sheet metal to form transverse indentations formed along a central portion thereof, and longitudinal formations formed along either side portion thereof, and flat portions between said longitudinal formations at spaced intervals along said central portion, which are free of said transverse indentations, said apparatus comprising;

moving die means arranged on opposite sides of the path of said moving strip operable to form transverse indentations in said central portion of said strip while leaving the side portions free of said indentations;
means for displacing a portion of said moving die means away from one side of said sheet metal strip to discontinue said forming of indentations whereby to define said flat portions of said central portion, and being moveable into engagement with said strip thereafter;
means for holding said strip sheet metal located down stream of said moving die means;
whereby tension may be applied thereto during forming said holding means being displaceable out of and into engagement with one side of said strip sheet metal whereby to intermittently discontinue said holding action thereby permitting said flat portions to pass therearound without engagement therewith, and,
tension roll means located upstream of said moving die means operable to engage and restrain said strip sheet metal, whereby the same is tensioned between said holding means and said tension roll means to prevent distortion of said strip by said moving die means.

2 more elements

Moving die apparatus for use in the cold forming of moving strip sheet metal, whereby to co-operate with other moving die apparatus to form repetitive formations in said strip transverse to the direction of travel thereof, said moving die apparatus comprising;

a plurality of link members arranged in a plurality of continuous longitudinal rows;
interconnecting means connecting end portions of adjacent said links in said rows transversely thereof, whereby to form the same into a continuous track-like band;
a plurality of separate die elements mounted transversely on said link members in spaced apart location;
die element retaining means engaging the same and securing them on said link members, and,
die element moving means for moving groups of said die elements to and fro relative to said sheet metal.

2 more elements

Dependencies are inferred from the claim text.

Method and apparatus for embossing sheet metal strip and sheet metal panel

Life of this patent

Method and apparatus for embossing sheet metal strip and sheet metal panel

Life of this patent

Abstract

Claims23