GB1311483A - Folders for printing presses - Google Patents

Abstract

1311483 Associating, folding and cutting apparatus L M SURBROOK 26 March 1970 [22 Aug 1969] 41912/69 Heading B8R A printed web W is slit longitudinally at 3; the bands produced are superposed and longitudinally folded on former plate 6; the bands are partially severed at a first cutting station and then completely severed to form individual signatures at a second cutting station in cutting zone 9 and successive groups of signatures are directed to upper and lower delivery conveyers 10a and 10b. Cutting apparatus.-Cutting cylinder 9a, Fig. 6, produces partial cut C which is completed by cutting cylinder 9b. The cutting cylinders are adapted to receive varying numbers of cutting blades at various relative angular positions around their peripheries (Fig. 11, not shown). Delivering signatures.-The switching device at station 10 comprises alternately operating arcuate discs 10c, 10d, Fig. 17, which serve to bias successive groups of signatures to upper or lower delivery conveyers 10e, 10f, respectively. The groups of signatures are arrested by abutment of the leading signature against stops 11e carried on conveyer belts 11a, Fig. 19. The stops are first accelerated to the speed of the moving group and then decelerated to arrest the group. A further fold may be imparted to the signatures by blade 11g co-operating with nip rollers (shown dotted). The arrested groups may be forwarded to a further (transverse) conveyer 12a and then to collating conveyer 13, Fig. 24, which is moved forward one signature length between delivery of successive groups SG.