Ölkreislaufsystem mit Doppeltem Sammler für eine Druckgiessmaschine

Details

Veröffentlichungs-Nr.

EP4775326

Anmeldetag

7. Januar 2026

Veröffentlichung

15. Juli 2026

Rechtsraum

EP

Abstract

The present invention provides a dual-accumulator oil circuit system for a die-casting machine, and belongs to the technical field of die-casting machine control. The dual-accumulator oil circuit system includes an injection cylinder and an accumulator, where the dual-accumulator oil circuit system further includes a booster accumulator; the booster accumulator includes a booster chamber and an annular chamber; the booster chamber is communicated with a rodless chamber of the injection cylinder; the accumulator is communicated with the annular chamber of the booster accumulator through a first servo valve; the annular chamber is communicated with an oil tank through a second servo valve; and a rod chamber of the injection cylinder is communicated with the oil tank through a third servo valve. In the present invention, A-bridge control is applied to the booster accumulator by the first servo valve and the second servo valve. By regulating the pressure in the annular chamber of the booster accumulator, different boost injection forces of the injection cylinder are achieved. The third servo valve can regulate oil discharge from the rod chamber of the injection cylinder, thereby regulating the injection speed of the injection cylinder. The present invention requires only three servo valves to achieve precise control of the injection speed and the injection force.

Anmelder

Firma

Ningbo LK Technology Co., Ltd.

Land

🇨🇳 China