公开(公告)号：US07367791B2

公开(公告)日：2008-05-06

申请号：US10991455

申请日：2004-11-19

申请人： Tetsu Murata ,  Ryoji Makino ,  Yuji Takemoto ,  Katsuyuki Hiraiwa ,  Shinji Kawamura ,  Takahiro Nishiyama ,  Yoshinobu Honkura ,  Hironari Mitarai ,  Kenji Noguchi

发明人： Tetsu Murata ,  Ryoji Makino ,  Yuji Takemoto ,  Katsuyuki Hiraiwa ,  Shinji Kawamura ,  Takahiro Nishiyama ,  Yoshinobu Honkura ,  Hironari Mitarai ,  Kenji Noguchi

IPC分类号： B29C43/14

CPC分类号： B29C43/14 ,  B29C43/003 ,  B29C43/04 ,  B29C2043/046 ,  B29C2043/3618 ,  B29K2303/06 ,  B29K2503/06 ,  B29K2995/0008 ,  H01F13/003 ,  H01F41/028

摘要： A device capable of producing an annular magnet or arcuate magnet with excellent dimensional accuracy and magnet performance, of which the mass is not greatly scattered. The device for producing the annular magnet, for example, includes a preforming section for obtaining an annular preformed body from a compound of a mixture of an anisotropic magnet powder and a thermosetting resin, a magnetic field orienting and forming section for obtaining an annular intermediate formed body by subjecting the annular preformed body to orienting and pressure-forming, a main forming section for obtaining an annular magnet by further forming the annular intermediate formed body, and a work transferring section for transferring works. The preforming section is provided with mass measuring means for measuring the mass of the annular preformed body, and a first lower punch of the preforming section is so arranged as to vary the volume of an annular cavity by varying the position thereof, which is before the pressure-forming process with a servomotor based on the mass of preformed body, which has been measured with the mass measuring means.

摘要翻译： 能够制造出具有优异的尺寸精度和磁体性能的环形磁体或弓形磁体的装置，其质量不会很大地分散。 例如，用于制造环形磁体的装置包括用于从各向异性磁体粉末和热固性树脂的混合物的混合物获得环形预制体的预成型部分，用于获得形成的环形中间体的磁场取向和形成部分 通过使环形预制体进行定向和压力成形，通过进一步形成环形中间成型体来获得环形磁体的主成形部分和用于转移工件的工件转移部分。 预成形部分设置有用于测量环形预制体的质量的质量测量装置，并且预成形件的第一下冲头被布置成通过改变其位置来改变环形空腔的体积， 基于用质量测量装置测量的预成型体的质量，使用伺服电动机进行压力成形过程。

公开(公告)号：US20060110484A1

公开(公告)日：2006-05-25

申请号：US10991455

申请日：2004-11-19

申请人： Tetsu Murata ,  Ryoji Makino ,  Yuji Takemoto ,  Katsuyuki Hiraiwa ,  Shinji Kawamura ,  Takahiro Nishiyama ,  Yoshinobu Honkura ,  Hironari Mitarai ,  Kenji Noguchi

发明人： Tetsu Murata ,  Ryoji Makino ,  Yuji Takemoto ,  Katsuyuki Hiraiwa ,  Shinji Kawamura ,  Takahiro Nishiyama ,  Yoshinobu Honkura ,  Hironari Mitarai ,  Kenji Noguchi

IPC分类号： B29C43/04

CPC分类号： B29C43/14 ,  B29C43/003 ,  B29C43/04 ,  B29C2043/046 ,  B29C2043/3618 ,  B29K2303/06 ,  B29K2503/06 ,  B29K2995/0008 ,  H01F13/003 ,  H01F41/028

摘要： A device capable of producing an annular magnet or arcuate magnet with excellent dimensional accuracy and magnet performance, of which the mass is not greatly scattered. The device for producing the annular magnet, for example, includes a preforming section for obtaining an annular preformed body from a compound of a mixture of an anisotropic magnet powder and a thermosetting resin, a magnetic field orienting and forming section for obtaining an annular intermediate formed body by subjecting the annular preformed body to orienting and pressure-forming, a main forming section for obtaining an annular magnet by further forming the annular intermediate formed body, and a work transferring section for transferring works. The preforming section is provided with mass measuring means for measuring the mass of the annular preformed body, and a first lower punch of the preforming section is so arranged as to vary the volume of an annular cavity by varying the position thereof, which is before the pressure-forming process with a servomotor based on the mass of preformed body, which has been measured with the mass measuring means.

摘要翻译： 能够制造出具有优异的尺寸精度和磁体性能的环形磁体或弓形磁体的装置，其质量不会很大地分散。 例如，用于制造环形磁体的装置包括用于从各向异性磁体粉末和热固性树脂的混合物的混合物获得环形预制体的预成型部分，用于获得形成的环形中间体的磁场取向和形成部分 通过使环形预制体进行定向和压力成形，通过进一步形成环形中间成型体来获得环形磁体的主成形部分和用于转移工件的工件转移部分。 预成形部分设置有用于测量环形预制体的质量的质量测量装置，并且预成形件的第一下冲头被布置成通过改变其位置来改变环形空腔的体积， 基于用质量测量装置测量的预成型体的质量，使用伺服电动机进行压力成形过程。