GB752480A - Continuous moulding machine for plastic and other materials - Google Patents

Abstract

752,480. Concrete block moulding machines. BORIE, A., SENOUILLET, R., and HUMBERT, R. March 29. 1954 [April 1. 1953]. No. 9111/54. Class 87(2) In a machine for the continuous production of moulded concrete blocks a carriage 5 on which a mould is mounted is brought to a station 16 where the mould is filled with concrete, then to a station 17 where the mould is vibrated and where also the concrete may be pressed, then tn a station 18 where a pailet 21 is placed on the top of the concrete in the mould, then to a station 4 where a rotatable support 25 inverts the carriage and mould and the pallet 21 carrying the moulded block, is lowered, then, after re-inversion. the carriage is raised to the top. of an inclined runway 2 down which it travels by gravity to a station 3 where it is lowered on a platform 46 to a position where, it suns, off the platform and along a runway 1 back to the filling station 16. The carriage 5, Fig. 3, comprises two longitudinal members 6, 7 braced together and carrying double-flanged wheels 11. The mould is clamped on the carriage between plates 14, 15 the clamping being by a screw action whereby moulds of different shapes and sizes may be held. At the station 18 the carriage is heid by a brake 22 while a device 20 lowers the pallet 21. The rotatable support 25 comprises. two end discs 29 30 joined by angle-irons 33. 34, Fig. 5, to which are fixed rail sections 12. 13 and channel members 35, 36. The carriage 5 is moved off the fixed runway 1 on to the movable rail sections 12, 13 and is held by wedges 37, 38 between flanges of the members 6 and 35, 7 and 36. A toothed ring on the support 25 is engaged by gear wheels 31, 32 which rotate it through 180 degrees to invert the mould and the pallet 21 and moulded block then rests on a plate 39 which is lowered by vertical screws 41, 42. The pallet is raised again after removal of the moulded block, the support 25 is rotated through another 180 degrees, the carriage is moved slightly to clear the wedges 37, 38 and a pulley 27, acting against a counterweight, raises the support till the carriage is on a level with the end of the runway 2 , to which it is transferred by a compressed air device 43, 44. The plantform 46 is balanced by counterweights 51, 52 and its downward movement under the weight of the carriage and empty mould, is controlled by a damping device 53.