Title:
CLOSING DEVICE ON A PLASTIC INJECTION MOULDING MACHINE
Document Type and Number:
WIPO Patent Application WO2002032638
Kind Code:
A3
Abstract:
The invention relates to a closing device on a hydraulically operating plastic injection moulding machine, comprising at least one pressure cylinder unit (10) which is used to build up a locking pressure, a drive cylinder which is accommodated in the pressure piston (13) of the pressure cylinder unit and used to close the injection mould, in addition to a compensating cylinder (30) which receives or discharges a hydraulic medium coming from said pressure cylinder unit. The drive cylinder (20) is arranged concentrically with respect to the centre axis (m-m) of the pressure cylinder unit (10). The compensating cylinder (30) is also arranged concentrically with respect to the centre axis (m-m) of the pressure cylinder unit (10).This results in a space-saving structure which meets the requirements in terms of precision for the production of moulded articles.
Inventors:
HEHL KARL (DE)
Application Number:
PCT/EP2001/011854
Publication Date:
June 27, 2002
Filing Date:
October 13, 2001
Export Citation:
Assignee:
HEHL KARL (DE)
International Classes:
B29C45/67; (IPC1-7): B29C45/67
Foreign References:
| GB1182456A | 1970-02-25 | |||
| EP0342235A1 | 1989-11-23 | |||
| DE19820934A1 | 1999-11-18 | |||
| DE19809666C1 | 1999-09-23 | |||
| DE4018334C1 | 1991-11-07 |
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