JPS5876348U

JPS5876348U - Air-hydraulic drive device for press slide knockout device

Info

Publication number: JPS5876348U
Application number: JP17246481U
Authority: JP
Inventors: 米沢　慶多朗
Original assignee: 相生精機株式会社
Priority date: 1981-11-18
Filing date: 1981-11-18
Publication date: 1983-05-23
Also published as: JPS6344200Y2

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 the drawing]

図面は本考案の−・実施例を示し、第１図はプレスのス
ライドノックアウト装置と空油圧式駆動装置の空油圧回
路図、第２図は空油圧式駆動装置の縦断面図、第３図は
ノックアウト作動時の空油圧式駆動装置の要部の縦断面
図、第４図はクッション作動時の空油圧式駆動装置の要
部の縦断面図である。６・・・・・・ケーシング、７・・・・・・入力シリン
ダ室、９・・・・・・出力ブランジャ室、１０・・・・
・・逆止弁室、１１・・・・・・ピストン、１２・・・
・・・プランジャ、１５・・・・・・逆止弁、１６・・
・・・・逆止閉弁バネ、２０・・・・・・給油孔、２１
・・・・・・給油弁室、２２・・・・・・給油弁座、２
３・・・・・・給油弁、２４・・・・・・給油閉弁バネ
、２５・・・・・・圧油出入口、２６・・・・・・強制
開弁具、２８・・・・・・開弁シリンダ室、２９・・・
・・・開弁用ピストン、３０・・・・・・受圧室、３１
・・・・・・給排制御弁、３２・・・・・・圧縮空気供
給管、４０・・・・・・絞り流路。The drawings show an embodiment of the present invention; Fig. 1 is a pneumatic-hydraulic circuit diagram of the slide knockout device of the press and the pneumatic-hydraulic drive device, Fig. 2 is a longitudinal cross-sectional view of the pneumatic-hydraulic drive device, and Fig. 3 FIG. 4 is a vertical cross-sectional view of the main parts of the pneumatic-hydraulic drive device during knockout operation, and FIG. 4 is a longitudinal cross-sectional view of the main parts of the pneumatic-hydraulic drive device during cushion operation. 6...Casing, 7...Input cylinder chamber, 9...Output plunger chamber, 10...
...Check valve chamber, 11... Piston, 12...
...Plunger, 15...Check valve, 16...
...Check closing valve spring, 20... Oil supply hole, 21
...Refueling valve chamber, 22...Refueling valve seat, 2
3...Refueling valve, 24...Refueling closing valve spring, 25...Pressure oil inlet/outlet, 26...Forced valve opening tool, 28... ... Valve opening cylinder chamber, 29...
... Valve opening piston, 30 ... Pressure receiving chamber, 31
...... Supply/discharge control valve, 32... Compressed air supply pipe, 40... Throttle flow path.

Claims

[Claims for Utility Model Registration] 1. An input cylinder chamber 7 and output plunge chambers 9 are formed in series in the casing 6, and a piston 11 inserted into the input cylinder chamber 7 so as to be able to move forward and backward and move forward and backward into the output plunger chamber 9. A check valve chamber 10 and a refueling valve chamber 21 are formed in the vicinity of the output plunger chamber 9 in the casing 6, and the check valve chambers 10 and 21 are connected to the plunger 12 that can be inserted into the casing 6. A check valve 1 for a work holding cushion is connected in parallel between an oil inlet/outlet 25 and an output plunger chamber 9 and allows a rapid large amount of inflow into the check valve chamber 10 into the output plunger chamber 9.
5 and a check valve closing spring 16 that biases the valve to close,
A refueling valve seat 22 is formed around the outlet of the refueling valve chamber 21, and a refueling valve 2 for work knockout is provided in the refueling valve chamber 21.
3 and the refueling valve closing spring 24 that brings the refueling valve into elastic contact with the refueling valve seat 22 to close the refueling valve 23 from the outlet side of the refueling valve chamber 21.
A slide knockout device for a press is provided with a forced valve opening tool 26 that advances and retreats in opposition to the press, and is configured to forcibly open a refueling valve 23 against a refueling closing valve spring 24 by advancing the forced valve opening tool 26. Pneumatic-hydraulic type 2 In the pneumatic-hydraulic drive device for a slide knockout device of a press as described in claim 1, the oil supply hole 20 connecting the pressure oil inlet/outlet 25 and the output plunger chamber 9 is connected to the check valve 15. A fuel supply valve chamber 21 is formed by extending the diameter of the middle part of the fuel supply hole 20 and extending along the axial center of the fuel supply hole 20. 3. In the pneumatic-hydraulic drive device for a slide knockout device of a press according to claim 1 or 2 of the utility model registration claim, when the oil supply valve 23 is opened, the forced valve opening tool 2
6 or in which a throttle flow path for restricting the oil supply flow rate is formed between the oil supply valve 23 and the oil supply hole 20. 4 Scope of claims for utility model registration, paragraph 1, paragraph 2, or
In the pneumatic-hydraulic drive device for a slide knockout device of a press described in item 3, a valve opening cylinder chamber 28 for a refueling valve is formed in the casing 6, and a valve opening piston 29 is inserted into the valve opening cylinder chamber 28 so as to be movable forward and backward. and the above-mentioned reinforced l valve opening tool 2
6, and the pressure receiving chamber 30 medically registered by the valve opening piston 29 in the valve opening cylinder chamber 28 is switchably connected to the compressed air supply pipe 32 and the atmosphere via the supply/discharge control valve 31. thing. 5 Scope of claims for utility model registration Paragraph 1, Paragraph 2, Paragraph 3,
Alternatively, in the pneumatic-hydraulic drive device for a slide knockout device of a press described in item 4, the input cylinder chamber 7, the output plunger chamber 9, the check valve chamber 10, and the oil supply valve chamber 21
Or one of these formed in series.