Metal deforming – By tool-couple pressing together adjacent surface portions... – To form helically-seamed tube
Patent
1986-06-17
1987-11-17
Combs, E. Michael
Metal deforming
By tool-couple pressing together adjacent surface portions...
To form helically-seamed tube
72132, 82 531, 82 58, 82 92, 82 94, B21C 3712
Patent
active
047064811
ABSTRACT:
An apparatus for cutting hollow, metal, spirally formed pipes is disclosed. The apparatus uses two passive, rotatable knife blades to cut the pipe. An upper knife blade is positioned inside the pipe so that its cutting edge is adjacent to the inner pipe surface. A lower knife blade is positioned outside of the pipe so that its cutting edge is adjacent to the cutting edge of the upper knife blade in the lateral direction, but is clear of the pipe and upper knife blade in the longitudinal direction. To cut the pipe the lower knife blade is raised until its cutting edge overlaps the cutting edge of the upper knife blade. The knife blades then puncture the pipe. The pipe is rotated through the overlapping blades to completely cut the pipe. Since the pipe moves spirally (i.e., it moves forward while it rotates), the knife blades are adapted to move in the direction of the pipe during the cutting process. This permits the overlapping knife blades to cut the pipe rectangularly. The upper knife blade is attached to a cantilevered boom, and the lower knife blade is attached to a knife holder and a vertical raising device. These components are all attached to sliding guide rails so that they move with the cutting blades in the direction of the moving pipe during the cutting process.
REFERENCES:
patent: 684539 (1901-10-01), Cartwright
patent: 694524 (1902-03-01), Boyd
patent: 957966 (1910-05-01), Jenkins
patent: 1345458 (1920-07-01), Pierce
patent: 3132616 (1964-05-01), Hale et al.
patent: 3913430 (1975-10-01), Van Dijk
patent: 3982414 (1976-09-01), Anderson
patent: 4054069 (1977-10-01), Coop
patent: 4244202 (1981-01-01), Anderson et al.
"Operation Instructions", Spiro Tubeformer 700.
"Operation Instructions", Spiro Tubeformer MR.
"Spare Part Catalog", Spiro Tubeformer 2002.
Flat Cages, IBO Bearings brochure.
THK Bearings brochure.
Combs E. Michael
Spiro America Inc.
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