Gas saving system for welding brazing soldering

摘要

The present invention relates to a gas-saving device for welding machines, gas-saving device according to the present invention is installed a cam that works are rotated by the torch holder and linked respectively by the cam mechanical gas for opening and closing the supply of the gas and oxygen configuration, and a valve and oxygen valve, and generating a spark signal from the spark unit by a micro switch that is linked by the cam, by only generating a spark the flame for a predetermined time by the spark signal so as to ignite the torch manner, without the use of electric valve using a mechanical valve, and generates only the spark flame without filer agent spark for ignition, automatic valves are closed want of oxygen and at the same time block the gas and oxygen supply and hang the torch is in the cradle and control in order to prevent the supply and combustion flame flashback kyumeu use of the radar (accumulater) It is characterized as to improve the function as a.