Patent GB-752196-A (GB)
Title: An automatic machine for the simultaneous squaring of several radiator cores
IPC: B23K1/00
Filed: 1954-02-11
Abstract: 752,196. Making radiator cores; soldering. SOC. ANON. DES USINES CHAUSSON. Feb. 11, 1954 [Feb. 17, 1953], No. 4055/54. Classes 83 (2) and 83 (4). Apparatus for squaring and holding hot radiator cores while solder thereon is cooled includes a table, means movable on the table to square and hold a core, means to cool the squared core and means to raise the cooled core from the table, the various means being operated and controlled automatically. A perforated table 7 has mounted thereon fixed vertical plates 110, plates 128, carrying spring blades 134, opposed thereto and movable towards and away therefrom and opposed horizontally grooved plates 53 and 109, 53 and 108 movable to and from one another the two sets of four plates each defining a rectangle and each being adapted to square and hold a radiator core. Prior to operation of the machine, base members 17, 18 supportthe plates 53 are adjusted towards the central plates 108, 109 by screws 24 and are locked in their adjusted positions. Base members 116, 117 supporting the plates 128 are suitably placed on the table 7 and locked in position. In operation a radiator core, comprising tubes assembled in fins and coated with molten solder, from a furnace is placed, with the ends of the tubes facing the grooved plates 53, 108, 109, on a raised plate 144 between the plates 53 and 109 and another core on a raised plate 145 between the plates 53 and 108. An electric motor driving a camshaft 154 (not shown) is then started by the operator whereupon fluid pressure means 135 is operated to lower a table 137 and allow the tables 144, 145 which it supports to descend. A switch 147, operated by descent of the table 137, in conjunction with means operated by the cam shaft causes fluid pressure means 121 to advance the plates 128 and spring 134 to push the cores against the fixed plates 110. Switches closed by said movement, in conjunction with the cam shaft, then cause fluid pressure means 65, 105 and 66 to move pins 60, 100 and 60 transversely of the table 7. and these pins, engaging in inclined grooves 58 and 59, 99 and 98 in rearwardly extending parts of the plates 53, 108, 109, cause said parts to move together to square and hold the cores, the ends of the tubes of said cores entering the horizontal grooves in said plates. Switches 68, 69 actuated by said movements, in conjunction with the cam shaft, cause fluid pressure means to start a cooling air blower which passes cooling air over the cores and through the perforations in the table 7 to cause the solder in the cores to solidify. When the doors of the furnace containing the next cores are about to be opened a signal is operated and the sound is picked by means 188 (not shown) which cause the motor driving the cam shaft to start again, it having been stopped during cooling, rotation of said shaft causing the withdrawal of the plates 53, 108, 109, then of the plates 128 and stopping of the cooling blower, then the raising of the plates 144, 145 carrying the squared and cooled cores and then the stopping of the motor.