| 摘要 |
<p>PURPOSE:To permit the dripping amount of liquefied gas to be automatically varied when the tightening speed is switched, by connecting a pressure regulating valve to the space above a storage tank through a gas pressure source and a regulator, in the captioned apparatus for generating a prescribed internal pressure in the tinned can after tightened when liquefied inert gas is dripped and sealed immediately before tightening the tinned can. CONSTITUTION:When a seamer is switched to high-speed operation, solenoid valves 25 and 26 change connection to a regulator, interlocked with said switching operation. In other words, the solenoid valve 25 connects a regulator 21 to a conduit 8, and the solenoid valve 26 connects a regulator 22 to a pressure regulating valve 13. Therefore, the higher gas pressure is introduced into the conduit 8, and a constant amount of gas can be dropped from a nozzle 6, irrespective of the reduction of the opening time of a dripping valve 3.</p> |
