method and device for applying a strip of thermoplastic material to a nahtkante of rumpfzargen

摘要

1,204,056. Applying adhesive tape. CONTINENTAL CAN CO. Inc. 15 July, 1968 [31 July, 1967], No. 33677/68. Heading B8F. In applying strip material, e.g. adhesive tape, along a margin of blanks intermittently fed to a tape applying station by reciprocating feed-bars a web of strip. forming material 22 is fed from a supply roll 24 between guide plates 44, 45 to underlie an end of an arrested blank 14, e.g. for metal cans, whereupon a shear 50 is raised against a stationary shear 52, by a co-operating cam 51 and roller 63, to first cut, and then to adhesively press the tape 22 on to the blank end supported above by a spring-biased back-up block (not shown). The end is previously heated if the tape 22 is thermoplastic. The amount of tape 22 overlapping the blank end is determined by adjustment of a lever operated one-way clutch drive of the supply roll 26. In a modification, the back-up block. is rigid and the roller 63 is spring-biased on the shear 50, which itself may be biased vertically downwards for highspeed operations.