Metal deforming – With cleaning – descaling – or lubrication of work or product – Lubricating
Patent
1976-01-14
1977-06-14
Combs, E. M.
Metal deforming
With cleaning, descaling, or lubrication of work or product
Lubricating
10106, B21J 300
Patent
active
040289184
ABSTRACT:
Device for applying lubricant to the workpiece and/or working surface of the punch of a multistage forging press. Channels are provided between the stepped holding pin of the punch and the wall of the stepped bore in which the holding pin reciprocates. The channels are connected via the interior of the punch to an external lubricant reservoir. The space formed with each stroke of the punch between the shoulders of the holding pin and its stepped bore acts as a pumping space. Each punch stroke causes lubricant to be drawn from the reservoir into the pumping space and subsequently forced out through the channels. Means are also provided by which the supply of lubricant from the reservoir can be more closely regulated in time with the working stroke of the press.
REFERENCES:
patent: 730045 (1903-06-01), Porterfield
patent: 1471669 (1923-10-01), Miller
patent: 2161265 (1939-06-01), Stahlhammer
patent: 2302857 (1942-11-01), Harder
patent: 2352429 (1944-06-01), Gomperz
patent: 3427840 (1969-02-01), Richter
patent: 3561238 (1971-02-01), Tetzloff et al.
patent: 3877271 (1975-04-01), Maddock
patent: 3906566 (1975-09-01), Rose
Combs E. M.
Hatebur Umformmaschinen AG
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