Title:
液圧プレス用制御装置と液圧プレスの運転方法
Document Type and Number:
Japanese Patent JP5058426
Kind Code:
B2
Abstract:
The invention relates to a controller for a hydraulic press, comprising a pressing cylinder ( 1 ), a reservoir ( 2 ), a valve group ( 3 ), a pressure medium reservoir ( 7 ) and a hydraulic pump ( 6 ), connected together by means of a cylinder line ( 4 ), a reservoir line ( 5 ) and a tank line ( 8 ). According to the invention, a pressure converter ( 9 ) is arranged on the valve group ( 3 ), which may operate as a pressure amplifier or pressure reducer. The particular mode of action of said controller is achieved whereby the valve group ( 3 ) comprises a pre-press valve ( 11 ), a low-pressure chamber outlet valve ( 12 ), a low-pressure chamber inlet valve ( 13 ), a main press valve ( 14 ), a closing valve ( 15 ), a pressure release valve ( 16 ) and a 3-way valve ( 17 ), which may be operated by a particular control sequence. Said invention is applicable in hydraulic presses and of particular advantage in presses for the forming of ceramic pieces such as tiles.
Inventors:
Hahn Mathias
Main Arno
Main Arno
Application Number:
JP2002528486A
Publication Date:
October 24, 2012
Filing Date:
August 24, 2001
Export Citation:
Assignee:
Wraith Gesellschaft Mito Beschlenktel Haftung
International Classes:
B30B1/32; F15B3/00; B30B15/16; B30B15/22; F15B1/02; F15B11/028; F15B11/032; F15B21/14
Domestic Patent References:
| JP63256300A |
Foreign References:
| US6370873 |
Attorney, Agent or Firm:
Mitsufumi Esaki
Tsuneo Mihara
Blacksmith
Tsuneo Mihara
Blacksmith