发明名称 |
METHODS OF MANUFACTURING ROTOR CORE FOR MOTOR-DRIVEN VALVE, ROTOR FEED SCREW AND ROTOR |
摘要 |
To improve methods of manufacturing a rotor core, a rotor feed screw, and a rotor for motor-driven valves and reduce manufacturing cost of the motor-driven valves. A method of manufacturing the rotor core comprising the steps of: using an openable/closable die device 23 defining a molding recess 28 for the sleeve 14; forming to the die device 23 a molding recess 24a for the valve closing limit stopper 14a and a first positioning portion 27a positionally corresponding to the molding recess 24a; forming to the bushing 11 a second positioning portion 11c such that when the second positioning portion 11c coincides with the first positioning portion 27a a thread-cut leading end 11b of the female screw 11a and the molding recess 24a for the valve closing limit stopper 14a are positionally corresponding to each other; mounting the bushing 11 to the die device 23 such that the second positioning portion 11c coincides with the first positioning portion 27a; and closing the die device 23 and casting molten resin into the molding recess 28 to manufacture the rotor core 19. In the same manner as described above, a rotor feed screw 20 and a rotor 40 can be manufactured.
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申请公布号 |
US2009300918(A1) |
申请公布日期 |
2009.12.10 |
申请号 |
US20080134584 |
申请日期 |
2008.06.06 |
申请人 |
OHUCHI TOMOARI;SATOU MASAYA |
发明人 |
OHUCHI TOMOARI;SATOU MASAYA |
分类号 |
B21D53/10;H02K15/03 |
主分类号 |
B21D53/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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