METHOD AND APPARATUS FOR EXTRACTING PLUG FOR TUBE VALVE

PURPOSE:To automatically extract a valve plug from an air injecting valve to which the plug is applied without damaging the air injecting valve, by providing a valve plug extracting member actuating apparatus which moves the valve plug extracting member in the direction to extract the valve plug. CONSTITUTION:The transferring apparatus 100 is formed of the roller conveyor 110 at the lower part and the conveyor 120 pressing goods from both sides at the upper part, whereby a tube T is transferred being pressed from its both sides. The elevating apparatus 200 for the valve plug extracting member, when the tube T reaches a predetermined position, causes the valve plug extracting member to approach and abut the air injecting valve 10. This apparatus 200 is caused by the shifting mechanism 300 to travel together with the tube T, so that the valve plug extracting member is caused by the valve plug extracting member actuating apparatus 400 to move in the direction to extract the valve plug 20. The valve plug 20 is thus extracted from the air injecting valve 10 by the plug extracting member 30 and drops down, and at the same time, the apparatus 200 and the mechanism 300 automatically return to the original positions.