Introduction to the Patent of Our Company’s Welding Pipe Mill (1)

Name: A three roll rough forming frame

Patent number: ZL202020727890.7

Patentee: Shanxi Haina High Tech Precision Machinery Co., Ltd

Abstract

This utility model belongs to the technical field of rough forming devices and specifically relates to a three roll rough forming frame, which includes a frame, an upper rolling shaft, and a lower rolling shaft. The upper rolling shaft is located above the lower rolling shaft, and both ends of the upper rolling shaft are sliding connected to the frame through an upper sliding plate. There is an upper lifting mechanism between the upper sliding plate and the frame, and the upper rolling shaft is rotatably connected to the upper sliding plate. The upper rolling shaft is equipped with a pair of upper rolling rollers, which can move axially along the upper rolling shaft, The upper rolling roller is connected with a corresponding upper driving mechanism; The two ends of the lower rolling shaft are sliding connected to the frame through the lower sliding plate. There is a lower lifting mechanism between the lower sliding plate and the frame, and the lower rolling shaft is rotatably connected to the lower sliding plate. There is a pair of lower rolling rolls on the lower rolling shaft, which can move axially along the lower rolling shaft. The lower rolling rolls are connected to corresponding lower driving mechanisms; It also includes a pair of side rollers.

By adjusting the positions of the three rollers, different radii of arcs can be obtained to meet the needs of all specifications of arcs within the production range of the mill.