JP2009050895A5 - - Google Patents

Claims (3)

キャビティよりガス抜き溝（１０）を通り流入してきた溶湯（Ｍ）の衝撃荷重で作動する受圧バルブ（３）と、該バルブ（３）の動きを閉鎖バルブ（６）に伝達するレバー（９）とを備え、且つ空気送圧回路への接続口（１２）と、接続口（１２）から少なくとも受圧バルブ（３）に連通するレバー室（１９）とを備え、受圧バルブ（３）は受圧ブッシュ（５）と、該ブッシュ（５）に沿って往復動する受圧弁棒（４）とから成り、型開きされている間に開放され、開放状態の受圧バルブ（３）内を接続口（１２）からレバー室（１９）に送気されたエアー圧が通り抜け、
受圧バルブ（３）に供給されたエアーが、受圧ブッシュ（５）と開放状態にある受圧弁棒（４）との隙間を通り抜けて外部に噴出し、受圧弁棒（４）と受圧ブッシュ（５）の隙間に侵入したバリ等を外部に排出し得るようにしたことを特徴とするガス抜き装置。 A pressure-receiving valve (3) that is operated by the impact load of the molten metal (M) that flows in from the cavity through the gas vent groove (10), and a lever (9) that transmits the movement of the valve (3) to the closing valve (6) And a connection port (12) to the air pressure supply circuit, and a lever chamber (19) communicating with at least the pressure receiving valve (3) from the connection port (12). The pressure receiving valve (3) is a pressure receiving bush. (5) and a pressure-receiving valve rod (4) reciprocating along the bush (5). The pressure-receiving valve rod (4) is opened while the mold is open, and the connection port (12 ) Passes through the air pressure sent to the lever chamber (19),
The air supplied to the pressure receiving valve (3) passes through the gap between the pressure receiving bush (5) and the pressure receiving valve rod (4) in the open state, and is ejected to the outside. The pressure receiving valve rod (4) and the pressure receiving bush (5 The degassing apparatus is characterized in that burrs and the like that have entered the gaps can be discharged to the outside . 受圧ブッシュ（５）と、該ブッシュ（５）に沿って往復動する受圧弁棒（４）とから成り、受圧弁棒（４）は胴部（４ａ）の一端側に弁部（４ｂ）を、他端側に受圧弁棒（４）の開放を制限する鍔（４ｃ）を備え、受圧ブッシュ（５）は筒部（５ａ）の一端側に湯溜り（５ｂ）を、他端側に外部と連通する連通路（１４）を備え、且つ弁棒胴部（４ａ）との間に連通路（１４）に連通する連絡路（１３）を設け、弁部（４ｂ）が湯溜り（５ｂ）に突入した開放状態において受圧弁棒（４）の往復動方向に通気可能となり、
受圧ブッシュ（５）に供給されたエアーが、受圧ブッシュ（５）と開放状態にある受圧弁棒（４）との隙間を通り抜けて外部に噴出し、受圧弁棒（４）と受圧ブッシュ（５）の隙間に侵入したバリ等を外部に排出し得るようにしたことを特徴とする受圧バルブ。 A pressure receiving bush (5) and a pressure receiving valve rod (4) reciprocating along the bush (5), the pressure receiving valve rod (4) has a valve portion (4b) on one end side of the body portion (4a). The other end side is provided with a flange (4c) for restricting the opening of the pressure receiving valve rod (4). A communication path (13) communicating with the communication path (14) is provided between the communication path (14) and the valve rod body (4a), and the valve section (4b) is a reservoir (5b). In the open state, the pressure-receiving valve rod (4) can be ventilated in the reciprocating direction.
The air supplied to the pressure receiving bush (5) passes through the gap between the pressure receiving bush (5) and the pressure receiving valve rod (4) in an open state, and is ejected to the outside. The pressure receiving valve rod (4) and the pressure receiving bush (5) The pressure receiving valve is characterized in that burrs or the like that have entered the gap can be discharged to the outside . キャビティよりガス抜き溝（１０）を通り流入してきた溶湯（Ｍ）の衝撃荷重で作動する受圧バルブ（３）と、該バルブ（３）の動きを閉鎖バルブ（６）に伝達するレバー（９）とを備えたガス抜き装置（Ａ）において、バルブは接続口（１２）を介して空気送圧回路に連通し、エアー圧にて少なくとも受圧バルブ（３）の受圧弁棒（４）を開放方向に押圧し、型閉め等の振動があっても受圧弁棒（４）を開放状態に維持し得るようにしたことを特徴とするガス抜き装置におけるバルブ安定作動方法。 A pressure-receiving valve (3) that is operated by the impact load of the molten metal (M) that flows in from the cavity through the gas vent groove (10), and a lever (9) that transmits the movement of the valve (3) to the closing valve (6) In the degassing device (A), the valve communicates with the air pressure supply circuit via the connection port (12), and at least the pressure receiving valve rod (4) of the pressure receiving valve (3) is opened by the air pressure. A valve stable operation method in a gas venting apparatus, wherein the pressure-receiving valve rod (4) can be maintained in an open state even when there is vibration such as mold closing.