-
公开(公告)号:US4879788A
公开(公告)日:1989-11-14
申请号:US233922
申请日:1988-08-17
申请人: Tsutomu Suzuki , Tatsushi Seko , Kuniharu Tobita , Saburo Matsubayashi , Nobuhiko Kougo , Kiyoshi Ogawa , Susumu Taniguchi , Masaharu Minami , Masayuki Hayakawa , Noriyuki Kawada
发明人: Tsutomu Suzuki , Tatsushi Seko , Kuniharu Tobita , Saburo Matsubayashi , Nobuhiko Kougo , Kiyoshi Ogawa , Susumu Taniguchi , Masaharu Minami , Masayuki Hayakawa , Noriyuki Kawada
摘要: This invention provides a drawing machine for pinching and stretching a film-like material of the type having rails installed extending from an inlet section to the outlet section and returning in the opposite direction from the outlet section back to the inlet section of the drawing machine. There is a clip propelling unit moving on the rails for pinching and stretching the film-like material, and elements for generating mutually repelling magnetic fields between the rails and clips, whereby the clips are movable in the non-contact state while floating from the rail guide surfaces. Thus, no foreign substances are generated, cleanliness of products is enhanced, no noise is generated, the work environment is improved, energy is saved, and highspeed operation is attained.