Patent GB-1229985-A (GB)
IPC: A43D95/08
Filed: 1968-04-16
Abstract: 1,229,985. Coating apparatus. BRITISH UNITED SHOE MACHINERY CO. Ltd. 16 April, 1968 [19 April, 1967], No. 17913/68. Heading B2L. [Also in Division B3] A machine for performing a marginal operation on unattached shoe soles comprises power operated means for feeding soles one by one along a straight path past two operating mechanisms, each comprising a support carrying a tool for operating on one edge of a sole as it is fed along its path, the support being yieldingly biassed inwardly towards an edge of the sole and caused to follow the curvature of the edge as a consequence of contact between the mechanism and the edge, and a pressure member disposed on the other side of the path to the tool support and yieldingly biassed inwardly to engage a portion of the edge on the other side of the sole to counteract any sideways pressure on the sole, the two operating mechanisms being arranged to operate on opposite edges of the sole. As described, the soles are arranged in a stack at a feeding station F and fed one by one to a trimming station T, burnishing station B, inking station I and marking station M, the soles being driven along a flat plate 2 and beneath an overlying plate 102 by chain-driven piston rollers associated with spring loaded pressure rollers. The feeding station F consists of a V-shaped gate 4 which locates the toe end of a stack of soles S, Fig. 2, the lower sole of which is fed below the gate to friction and drive rollers 28, 100 by reciprocation of a V-notch plate 14 by a pneumatic cylinder 38, a second V-notch plate 22 being moved by springs 26 attached to plate 14 to engage the next sole to be advanced and align it with the feed path. The cylinder 38 is controlled by a reversing valve 46 secured to a bracket 20 on plate 14, valve 46 only being operated in its advanced position after a sole has passed from the rollers 28, 100 by a cam 36 secured to a lever 33 joined to the pivoted lever 32 carrying roller 28. From the rollers 28, 100, Fig. 8, the sole passes to the trimming station T where its opposite edges are abraded by wheels 122, 124 driven by air motors 126, 128 carried by arms 130, 132, springs 142, 144 urging the wheels towards the path of the sole to positions determined by adjustable stops. Each abrasive wheel is disposed opposite a pressure roller 146, 148 carried by arms 150, 152 also urged towards the path of the soles to positions determined by adjustable stops. The wheels and rollers move along arcuate cut-outs in the plate 2 and overlying plate 102. The arms 130, 132 carrying the abrasive wheels work against dashpots 134, 136. After trimming, the soles pass to the burnishing station which is constructed in a similar manner to the trimming station, the burnishing wheels 208, Fig. 9, having spaced flattened portions 209 which produce a hammering action and being driven by air motors 200, 202, Fig. 1. Following the burnishing, the soles pass to the inking station I in which a pair of inking rollers associated with reservoirs 306, Fig. 11, are carried at the ends of spring-loaded arms 304, each inking roller being disposed opposite an equalising roller 314 carried by a spring-loaded arm 316 which prevents sideways movement of the soles. Finally the soles pass over a marking roller 326, Fig. 1 which is associated with an inking roller and reservoir 330 for stamping a numeral N corresponding to the size of the sole on the soles as they leave the machine.