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发明授权
US4578971A Machine for manufacturing spiral seam piping from strip metal 失效
用于制造带状金属螺旋缝管的机器

Machine for manufacturing spiral seam piping from strip metal
摘要：
In a machine for manufacturing spiral seam piping from strip metal, using a set of three forming rolls consisting of a large number of individual bending rollers, the bending rollers acting on the inside of the pipe being arranged on a roller carrier which is capable of adjustment, the roller carrier (22) is controlled and driven in order to tilt it laterally by the use of a parallelogram control arm system (23) with two control arms (25, 26) arranged in a first control circle plane (24a) and one control arm (27) arranged in a second control circle plane (24b), at least one control circle adjuster (28, 29) associated with a control circle plane (24a, 24b), a link rod (31) acting in the direction of the pipe centerline (30), a lifting device (33) pivoted at the end (32) of the roller carrier (22), and a height-adjustable mounting (34) with a joint plate (36) carried in a bearing in the central portion of the roller carrier (22), a double lever (37) and a lifting device (38).
摘要（中）：

在用于从带状金属制造螺旋缝管的机器中，使用由大量单独的弯曲辊组成的一组三个成形辊，作用在管内侧的弯曲辊布置在能够调节的辊架上 通过使用布置在第一控制圆平面（24a）中的两个控制臂（25,26）的平行四边形控制臂系统（23）来控制和驱动辊架（22）以使其侧向倾斜，并且一个 布置在第二控制圆平面（24b）中的控制臂（27），与控制圆平面（24a，24b）相关联的至少一个控制圆调节器（28,29），连杆（31） 管道中心线（30），在滚轮架（22）的端部（32）处枢转的提升装置（33）和具有联接板（36）的高度可调安装件（34），承载在轴承中 滚子载体（22）的中心部分，双重杆（37）和提升装置（38）。

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