De-warping apparatus for straightening a plate

Details De-warping apparatus for straightening a plate De-warping apparatus for straightening a plate

B - Operations, Transporting

21

D

B21D 1/00 (2006.01) B23K 15/00 (2006.01) H01L 21/48 (2006.01)

Patent

CA 2211562

The present invention is a de-warping apparatus for straightening a plate which is bent such that a centre portion thereof is higher than outer portions thereof. The apparatus comprises a plurality of rollers forming a support surface wherein the centre most rollers are mounted lower than the outermost rollers; an axle mounted above the rollers; a plurality of disks mounted for rotation about the axle, wherein the centre most disks have a larger radius than the outermost disks; and means for advancing the plate between the rollers and disks, whereby a greater downward force is applied to the centre portion of the plate than to the outer portions for de-warping the plate.

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