JPS58166928U

JPS58166928U - Press machine dictation device

Info

Publication number: JPS58166928U
Application number: JP6150282U
Authority: JP
Inventors: 千嵐　千治
Original assignee: 有限会社燕特殊機械研究所
Priority date: 1982-04-27
Filing date: 1982-04-27
Publication date: 1983-11-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案の一実施例を示すものにして、第１図は空
圧−油圧回路説明図、第２図はＡ−Ａ線断面矢視図であ
る。１・・・プレスベッド、２・・・クッションシリンダ、
３・・・ピストンロッド、４・・・ダイクッションシパ
ッド、５・・・ロンド側ポート、６・・・第１オイルタ
ンク、７・・・油ボート、８・・・外部パイロット操作
逆止弁、９・・・パイロットポート、１０・・・第１空
圧電磁切換弁、１１・・・排出ポート、１２・・・供給
ポート、１３　　−・・・空圧源、１４・・・空気ポー
ト、１５・・・第２空圧電磁切換弁、１６・・・第１ポ
ート、１７・・・供給ポート、１８・・・ヘッド側ポー
ト、１９・・・第２オイルタンク、２０・・・第１油ポ
ート、２１・・・油圧電磁切換弁、２２・・・排出ポー
ト、２３・・・供給ポート、２．４・・・第２油ポート
、２５・・・圧力制御弁、２６・・・リリーフ弁、２７
・・・逆止弁、２８・・・空気ポート、２９・・・第２
ポート。The drawings show one embodiment of the present invention, and FIG. 1 is an explanatory diagram of a pneumatic-hydraulic circuit, and FIG. 2 is a sectional view taken along line A--A. 1... Press bed, 2... Cushion cylinder,
3... Piston rod, 4... Die cushion pad, 5... Rondo side port, 6... First oil tank, 7... Oil boat, 8... External pilot operated check valve , 9... Pilot port, 10... First pneumatic electromagnetic switching valve, 11... Discharge port, 12... Supply port, 13 -... Air pressure source, 14... Air port, 15... Second pneumatic electromagnetic switching valve, 16... First port, 17... Supply port, 18... Head side port, 19... Second oil tank, 20... First Oil port, 21... Hydraulic electromagnetic switching valve, 22... Discharge port, 23... Supply port, 2.4... Second oil port, 25... Pressure control valve, 26... Relief valve, 27
...Check valve, 28...Air port, 29...Second
port.

Claims

[Scope of utility model registration request]

A cushion cylinder is installed vertically below the press bed, a Gui cushion pad is fixed to the upper end of the piston rod of the cushion cylinder, and the oil port of the first oil tank is connected to the top side port of one of the cushion cylinders. connected, and between the rod side port and the oil port,
An external pilot-operated check valve that does not allow oil to flow to the rod-side port side under normal conditions is interposed, and the discharge port of the first pneumatic electromagnetic switching valve is connected to the pilot port of the external pilot-operated check valve. An air pressure source is connected to the supply port of the pneumatic solenoid switching valve, and a second air pressure source is connected to the air port of the first oil tank.
Connect the first port of the pneumatic solenoid switching valve, connect the air pressure source to the supply port of the second pneumatic solenoid switching valve, and connect the second oil tank to the lower head side port of the other cushion cylinder. A first oil port is connected, a discharge port of a hydraulic solenoid switching valve is connected to the head side port, a second oil port of the second oil tank is connected to a supply port of the hydraulic solenoid switching valve, and the hydraulic A pressure control valve and an IJ valve are connected in parallel to each of the electromagnetic switching valves, and between the head side port and the first oil port of the second oil tank, the first oil is connected from the head side port to the first oil port. A press machine characterized in that a check valve that does not allow oil to flow to the port side is interposed, and the air port of the second oil tank is connected to the second port of the second pneumatic electromagnetic switching valve. Gui cushion device.