SUPER LARGE PIPE DIAMETER STRAIGHT SEAM WELDED PIPE SHAPING MACHINE SET

摘要

A super large pipe diameter straight seam welded pipe shaping machine set is composed of an edge hollow-bending device (1), a row-roll shaping machine (2) and a plate-frame type shaping machine (3). The edge hollow-bending device (1) is composed of a machine seat (1.1), a pinch centering device (1.2) and a number of edge bending mechanisms (1.3). The row-roll shaping machine (2) is an open row-roll shaping machine combined by an outer roll device (2.1) and an inner roll device (2.4). Each equal rigid frame of the plate-frame type shaping machine (3) is composed of a machine frame body (3.2), an upper horizontal roll mechanism (3.4), an upper horizontal roll adjusting mechanism (3.5), a sliding seat (3.10), a support plate (3.11), a hydraulic cylinder (3.12), a lower horizontal roll mechanism (3.6), a lower horizontal roll adjusting mechanism (3.7), a side vertical roll mechanism (3.8) and a side vertical roll adjusting mechanism (3.9). The straight seam welded pipe shaping machine set has compact structure and low labor intensity, improves the production efficiency and is safe in operation.