公开(公告)号：US07065999B2

公开(公告)日：2006-06-27

申请号：US10485925

申请日：2002-03-11

申请人： Hiroshi Fukuchi ,  Hiroyuki Mitake ,  Shizuo Kohinata ,  Kiyoshi Uda ,  Tsutomu Haeno ,  Hiroo Ishibashi

发明人： Hiroshi Fukuchi ,  Hiroyuki Mitake ,  Shizuo Kohinata ,  Kiyoshi Uda ,  Tsutomu Haeno ,  Hiroo Ishibashi

IPC分类号： B21D5/14

CPC分类号： B21D5/146 ,  B21D5/143

摘要： This invention provides a bending roll apparatus capable of preventing barrel-like deformation of a pipe occurring during a roll bending work and of manufacturing a small diameter elongated pipe. In an apparatus for manufacturing a pipe by pushing rolls to a core roll, feeding a metal sheet to their contact portions and performing a bending work, the bending roll apparatus comprises a core roll formed of a metal and a plurality of push rolls having a surface portion thereof formed of an elastic material and disposed around the core roll. The invention further provides, in a bending roll apparatus, a core roll formed of a metal, a plurality of push rolls formed of a metal and disposed around the core roll, and holding the core roll when a metal sheet is bent, and a guide belt formed of an elastic material, interposed between the core roll and each of the push rolls, contacting on a core roll surface on a side opposite to an entry side of the metal sheet and driven in synchronism with the core roll.

摘要翻译： 本发明提供一种弯辊装置，其能够防止在辊弯曲加工期间发生的管的筒状变形和制造小直径细长管。 在通过将辊推压到芯辊来制造管的装置中，将金属片馈送到其接触部分并进行弯曲加工，弯辊设备包括由金属制成的芯辊和多个推辊，所述推辊具有表面 其部分由弹性材料形成并设置在芯辊周围。 本发明还提供一种弯曲辊装置，由金属形成的芯辊，由金属形成并设置在芯辊周围的多个推辊，并且在金属板弯曲时保持芯辊;以及引导件 由芯辊和每个推辊之间插入的由弹性材料形成的带在与金属片的入口侧相对的一侧的芯辊表面上接触并与芯辊同步地驱动。