Title:
DEVICE FOR HYDRO-MECHANICAL FORMING OF ARTICLES
Document Type and Number:
WIPO Patent Application WO/1991/014523
Kind Code:
A1
Abstract:
A device for hydro-mechanical forming of articles comprising, all mounted coaxially, a multiplier (1), a power cylinder (2) and a demultiplier (3). On the rod of the power cylinder (2) is mounted coaxially to the latter a container (20) provided with a chamber (21) in which is mounted a matrix (22) for the blank, and which at the moment of forming the blank is filled with a plastifying liquid. Between the container (20) and the rod (25) of the demultiplier (3) is mounted a punch (34) sealing the chamber (21) during the forming of the blank. The hydraulic line (29) connecting the low-pressure chamber (26) of the multiplier (3) to a source (12) for the working liquid and to a receiver (13) for its discharge is provided with a non-return valve (30), intended to prevent the working liquid flow from the low-pressure chamber (26) of the demultiplier (3) to the receiver (13) for the working liquid discharge, and with an accumulator (31) the hydraulic chamber (32) of which is connected to a section (33) of the hydraulic line (29), which is located between the non-return valve (30) and the low-pressure chamber (26) of the demultiplier (3).
Inventors:
KUZKO JURY PETROVICH (SU)
Application Number:
PCT/SU1991/000044
Publication Date:
October 03, 1991
Filing Date:
March 18, 1991
Export Citation:
Assignee:
KUZKO JURY PETROVICH (SU)
International Classes:
B21J9/12; B21C23/00; B21J5/04; B30B1/32; (IPC1-7): B21J5/04
Foreign References:
| SU984600A1 | 1982-12-30 | |||
| SU1049153A1 | 1983-10-23 | |||
| GB1109841A | 1968-04-18 | |||
| GB1096522A | 1967-12-29 | |||
| GB1584215A | 1981-02-11 |
Other References:
See also references of EP 0473797A4
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