本機(jī)結(jié)構(gòu)型式為三輥對稱式，上輥在兩下輥*對稱位置作垂直升降運動，通過絲桿絲母蝸桿傳動而獲得，兩下輥作旋轉(zhuǎn)運動，通過減速機(jī)的輸出齒輪與下輥齒嚙合，為卷制板材提供扭矩。本機(jī)床結(jié)構(gòu)緊湊，操作維修方便。
Performance:
The machhine adopts 3-roller symmetrical structure with the uppe roller moving vertically in the center between the two lower rollers，which is achieved through the drive of the screw，the nut,the worm and the lead screw，The two lower rollers rotates，and provides the plate materlals with torque through the engagement of the output gear of the moderator with the gear of the lower rollers．
The disadvantage of the machine is that the ends of the plate materials need to have the help from other equipment for pre—bending.
