Title: Combined drawing and straightening machine for metallic tubes or rods

Abstract: Machine for simultaneous reduction and straightening of metallic tubes or rods has a reducing die which is mounted in the frame downstream of a guide for workpieces and upstream of a ring-shaped straightening tool whose axis orbits about the axis of the opening in the die. The outlet end of the internal surface surrounding the opening in the die tapers counter to the direction of lengthwise movement of workpieces through the die. The guide insures that the workpieces cannot be flexed upstream of the throat portion of the internal surface of the die, and a second guide can be provided downstream of the straightening tool to confine the flexing of the workpieces to the region between the throat portion of the internal surface of the die and the second guide. The tool is mounted in a spherical bearing which is installed in the eccentric bore of a sleeve driven by a pulley to rotate about the axis of the die whereby the tool orbits the axis of its passage about the axis of the opening in the die.

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Inventors: Fangmeier, Ralf (Solingen, DT)
Goeke, Alfons (Solingen, DT)

Application Number: 399820
Filing Date: 1973-09-24
Publication_date: 1977-09-13
Assignee: Kieserling & Albrecht (Solingen, DT)
Primary Class(es): 72/278 72/79
Other Classes:
US Patent Ref:

1847454	Mar, 1932	Webb	72/79.
1933433	Oct, 1933	Hjelm	72/79.
2088040	Jul, 1937	Simons et al.	72/282.
2310916	Feb, 1943	Gaines et al.	72/278.
3080962	Mar, 1963	Fleischmann	72/282.
3181325	May, 1965	Cecchin	72/43.
3264855	Aug, 1966	Turbett	72/79.

Other Refs: 939,118691,1741,034,576710,219

Nov, 1948	FR
Apr, 1940	DD
Jul, 1958	DT
Jun, 1954	UK

Primary Examiner: Keenan, Michael J.
Assistant Examiner:
Attorney: Striker; Michael J.