GB703698A - Improvements relating to apparatus for the manufacture of shoes by a manner of manufacture which involves pressing - Google Patents

Abstract

703,698. Shoe presses. BEE BEE SHOE CO. Dec. 14, 1950, No. 30497/50. Class 17(1) At each of a number of stations in apparatus for making shoes on an assembly line a press is installed and means are provided successively to arrest the lasted shoes and to subject them to a pressing operation as the shoe is held. Plates 13, Figs. 1, 5, which support last carrier pins 15 on which lasts 18 are slidably mounted slide in grooves in tracks 10, 11. Each last is locked in angular position on its spindle 14 by a pin 16, and the plates 13 are moved continuously by frictional contact with a conveyer belt (not shown) in such manner as to permit any plates to be arrested and held stationary for performance of a pressing operation on the shoe carried thereon, e.g. a sole-attaching, platform fixing or wrapper pressing operation, by elevating the last, by a double acting cylinder 33 and toe and heel engaging members 45, 37 respectively against a resilient pad 25 fastened to a block 26 which is engaged with flanges on a cross-head 23 supported on posts 21. A pawl arm 50 pivoted on a pin on the track 11 is swung inwards by a compressed air cylinder 53 and piston rod 54 when it crosses the path of spindles 14 and a lug 51 engages successive spindles to halt the lasts 18 in position under the press. A microswitch 56 operated by engagement of last plate 17 with a roller 59 on an arm 58 controls through a solenoid the air valves of cylinder 53 to operate the arm 50. A microswitch 63 on arm 50 controls the operation of valves of cylinder 33 to press the last against the pad 25 and start a time switch to return valves of cylinder 53 to reverse arm. 50 and allow last 18 to advance along the track. A ratchet 70 pivoted on plate 73 welded to track 11 prevents disturbance of microswitch 63 by the leading edge of the base plate 13 of the next last to be pressed from colliding with the trailing edge of the plate 13 of the last in the press.