Double-annular-frame seam closing device and method thereof

• Main Authors: LIU YUBING, LIU ZHIHUA, LYU YUJUN, CHENG LEI, ZHANG DEGANG, WANG DONGMING, PING WEI, JIANG WENKAI, LIU MINXIANG, LIU YAOMIN, ZHANG HUAIDE
• Format: Patent
• Language: Chinese; English
• Published: 18.10.2022
• Subjects: AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING

The invention discloses a double-annular-frame seam closing method. The device comprises a transition folding annular frame and a folding annular frame, wherein the transition folding annular frame and the folding annular frame are arranged adjacently; the transition folding annular frame is of a horn mouth structure composed of a transition lifting annular frame and a transition compression roller beam, and the transition compression roller beam is installed on the transition lifting annular frame. The center of the lifting annular frame is consistent with the axial direction of the outer circle of the open pipe blank. According to the device, the joint closing pressure of the joint closing section and the joint closing pressure of the transition section are controlled through the double-annular-frame structure, and the joint closing force of the joint closing section and the joint closing force of the transition section are evenly distributed to all the closing roller beams, so that the technological produc