Flexible pipe end crimping apparatus

Details Flexible pipe end crimping apparatus Flexible pipe end crimping apparatus

1990-10-09

1991-08-06

Larson, Lowell A.

Metal deforming

By tool-couple pressing together adjacent surface portions...

To form helically-seamed tube

72137, B21C 3712

Patent

active

050366904

ABSTRACT:
An apparatus for crimping the ends of flexible pipe sections is adapted for mounting on a machine for winding flexible pipe from steel bands. The pipe forming machine includes multiple pairs of roller dies for profiling a flat metal band to a configuration with flanges on leading and trailing edges of the band. The profiled band is wound on a mandrel and the adjacent flanges of respective bindings interlock as the profiled band is spiral-wound on the mandrel. The crimping apparatus is mounted upstream of the mandrel and receives the profiled band. The crimping apparatus includes a pair of roller arm assemblies each mounting a roller die. The roller arm assemblies are interconnected by a toggle linkage mechanism which is connected to a linear actuator for moving the roller arm assemblies between engaged positions for compressing the flanges to non-interlocking configurations and disengaged positions.

REFERENCES:
patent: 1383187 (1921-06-01), Brinkman et al.
patent: 1596215 (1926-08-01), Palmer
patent: 3073944 (1963-01-01), Yuter
patent: 4197728 (1980-04-01), McGowen

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