Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles Associations therewith of cutting devices

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING METAL

B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles Associations therewith of cutting devices

B21D43/003Positioning devices B21D43/006Feeding elongated articles, such as tubes, bars, or profiles B21D43/02Advancing work in relation to the stroke of the die or tool B21D43/021Control or correction devices in association with moving strips B21D43/022Loop-control B21D43/023Centering devices B21D43/025Fault detection B21D43/026Combination of two or more feeding devices provided for in B21D43/04 - B21D43/18 B21D43/027Combined feeding and ejecting devices B21D43/028Tools travelling with material B21D43/04by means in mechanical engagement with the work B21D43/05specially adapted for multi-stage presses B21D43/052Devices having a cross bar B21D43/055Devices comprising a pair of longitudinally and laterally movable parallel transfer bars B21D43/057Devices for exchanging transfer bars or grippers; Idle stages B21D43/06by positive or negative engaging parts co-operating with corresponding parts of the sheet or the like to be processed B21D43/08by rollers B21D43/09by one or more pairs of rollers for feeding sheet or strip material B21D43/10by grippers B21D43/105Manipulators B21D43/11for feeding sheet or strip material B21D43/12by chains or belts B21D43/13by linearly moving tables B21D43/14by turning devices B21D43/145Turnover devices B21D43/16by gravity B21D43/18by means in pneumatic or magnetic engagement with the work B21D43/20Storage arrangements Piling or unpiling B21D43/22Devices for piling sheets B21D43/24Devices for removing sheets from a stack B21D43/26Stops B21D43/28Associations of cutting devices therewith B21D43/282Discharging crop ends or the like B21D43/285Devices for handling elongated articles B21D43/287Devices for handling sheet or strip material