ES341933A1 - Sheet metal edging apparatus - Google Patents

Abstract

Edging apparatus, suitable for rolling the edges of regular or irregular shaped sheet or strip workpieces, incorporates grooved edging rolls 166, 122, 170, 196, 186, and 194 (Figs. 1, 2, in plan) between which a strip 252 is passed, the three rolls on either side of the strip being connected together in groups for movement transversely of the strip. The rolls are mounted in a common plane in respective blocks such as 40, 78, Fig. 3, the outer blocks in each group of three being pivoted to the central one and being adjustable by screws 68 or 96 against spring bias. The lefthand blocks are biased towards the strip by springs 144, while the righthand blocks are adjustable by a screw 200 and hand wheel 206. The roll 122 is driven by a motor 146 through a clutch 154 and chain drive. Adjustable horizontal entry rolls 242 and 244, and one or more exit rolls 236, together with rollers 253, 255, 257, and 259 guide the strip. For thin strip further rolls 212 and 222, disposed between the rolls 122 and 186, may be employed. The rolls 166 and 196 have V-shaped grooves, rolls 122 and 186 U-shaped grooves, and rolls 170 and 194 further U-shaped grooves of larger radius. The adjustment of the outer rolls relative to the centre one determines the degree of rolling of the strip edges. By suitably removing the outer rolls, workpieces of annular, disc, or irregular shape (Figs. 9-11, not shown) may be rolled, in the latter case one of the rolls being urged hydraulically or pneumatically against the workpiece.