GB1027722A - Improvements in or relating to the printing of textiles - Google Patents

Abstract

1,027,722. Printing-machines. STAFFORD PRINTERS Inc. Aug. 7, 1963 [Aug. 10, 1962], No. 31232/63. Heading B6C. An assembly 1, Fig. 2, for mounting a hollow intaglio printing cylinder 16 upon a pair of spaced bearing supports 14 in an apparatus for printing on a textile web 8 comprises a shaft 48 which is adapted to be inserted in one end of a cylinder 16 and supports adjacent one end a movable mandrel element 92 and a fixed shaft section provided with a mandrel element which engages the other end of the shaft 48, said mandrel elements being provided with elongated slots on their frusto-conical surfaces which slots co-operate with keys in the internal surface of the cylinder to prevent relative rotation. Rotary printing machines.-The impression roller 6 is adapted to co-operate with a plurality of intaglio printing cylinders 16 which may each print in a different colour. In operation a plurality of the printing cylinders 16 are arranged on the rubber or plastic covered seats 158 of a carrier, Fig. 1 (not shown), according to a required pattern. The carrier is moved on tracks under the roller 6 and a support member is raised by fluid pressure until the axes of the cylinders 16 are aligned with the supports 14. A shaft 48 is then inserted into each cylinder until a bushing 105 is seated with a bearing liner in a support 14 and a fixed shaft section is located adjacent the other end with its bearing portion seated in the liner of a further support 14 and the bore in its mandrel element engaged by a reduced end on the shaft 48. The support 150 is then lowered, an adjusting nut 98 and a locking nut 100 are tightened, and screws 24, Fig. 4, are tightened to move the cylinders 16 against the roller 6. Inking apparatus.-Ink of the required colour is poured into a feed duct 108, Fig. 4, comprising vertical walls 122 and a member having a planar bottom wall 118 which has a bevelled inner edge and slopes downwardly. A doctor blade 124 having a bevelled inner edge removes excess ink from the cylinder 16 and is carried at each end on support rods located in adjustable holders. The wall 118 is similarly mounted. The pressure of the wall 118 and the blade 124 on each cylinder is adjustable by varying weights 134, 136. If it is desired to change the ink, the duct 108 is pivoted to spill the excess ink and the members 108, 124 and the cylinder 16 are wiped clean in situ.