[특허]Injection molding machines having a brushless DC drive system

[미국특허] Injection molding machines having a brushless DC drive system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-045/77
출원번호	US-0370669 (1989-06-23)
발명자 / 주소	Faig Harold J. (Cincinnati OH) Sparer Ronald M. (Madeira OH)
출원인 / 주소	Cincinnati Milacron Inc. (Cincinnati OH 02)
인용정보	피인용 횟수 : 50 인용 특허 : 10

초록 ▼

An injection molding machine utilizing brushless DC motors in its servomechanism drive systems. Brushless DC motors provide a cost effective high power drive system which has the simplicity of control of brush-type DC motors. By utilizing higher resolution encoders and controlling pressure with the

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An injection molding machine for producing a molded part by injecting a molten material into mold elements having a mold cavity defining the molded part, the machine comprising: (a) clamp means for supporting the mold elements; (b) injection means for injecting the molten material into the mold cavity, said injection means including a screw member rotatably and translatably carried in a tubular barrel, said tubular barrel having an end in communication with the mold cavity; (c) first drive means mechanically coupled to the clamp means for imparting relative motion between the mold elements; (d) second drive means mechanically coupled to the injection means for rotating the screw member; (e) third drive means mechanically coupled to the injection means for translating the screw member within the tubular barrel; (f) wherein at least one of the first drive means, the second drive means and third drive means further includes (i) a brushless DC motor producing an electromotive force having an approximately trapezoidal waveform, said motor comprising a rotor having permanent magnets and stator windings surrounding said rotor, detecting means for detecting angular positions of the rotor, and (ii) motor controller means for controlling the brushless DC motor, said motor controller means connected to the brushless DC motor and responsive to a motor command signal, said motor controller means including (1) supplying means for supplying positive and negative DC signals, (2) switching circuit means for applying the positive and negative DC signals to the stator windings, said switching circuit means connected between the stator windings and the supplying means, and (3) control circuit means connected to the switching circuit means and the detecting means for activating the switching circuit means to selectively apply the positive and negative DC signals in a predetermined phase relationship to the stator windings to produce a commutation effect thereby creating a torque on the rotor to produce rotor rotation; and (g) machine control means connected to the motor controller means for producing the motor command signal.

이 특허에 인용된 특허 (10) 인용/피인용 타임라인 분석

Packard Douglas T. (La Canada CA) Schmitt Donald E. (San Jose CA), Brushless DC motor control system responsive to control signals generated by a computer or the like.
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Buckley Maurice (Blackrock IEX) Stone Arthur (Kilmallock IEX) Murray Aengus (Clontarf IEX), Electrical drive systems.
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Inaba Yoshiharu (Kawasaki JPX) Mitoguchi Fumio (Hino JPX) Sakamoto Keiji (Hachioji JPX) Sogabe Masatoyo (Hachioji JPX), Injection drive apparatus.
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Inaba Yoshiharu (Kawasaki JPX), Injection molding apparatus.
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Fujita Shigeru (Numazu JPX) Takanashi Yukio (Numazu JPX) Kanno Hiroshi (Numazu JPX), Injection molding machine.
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Yamazaki, Yoshihiko, Injection molding machine.
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Otake Hiromasa (Tanashi JPX), Metering system of injection molding machine.
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Vaniglia Christopher L. (West Chester OH) Anderson Perry J. (Cincinnati OH) O\Keefe Dennis G. (Cincinnati OH), Method and apparatus for process control.
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Peterson, William J.; Faulkner, Dennis T., Motor control for a brushless DC motor.
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Gutjahr Lothar (Denzlingen DEX), Plastification and injection device for an injection molding machine.
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이 특허를 인용한 특허 (50) 인용/피인용 타임라인 분석

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Anderson William G., Brushless direct current motor having adjustable motor characteristics.
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Colosky, Mark P., Compensation of periodic sensor errors in electric power steering systems.
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Maruyama, Junpei; Niwa, Masakazu, Control apparatus of injection molding machine.
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Kleinau, Julie A.; Chandy, Ashok, Damping of voltage-controlled brushless motors for electric power steering systems.
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Markert,Nikolaus, Devices for position-controlled stopping of rotating components with position-controlled drive mechanisms in the case of voltage loss.
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Kamp, Wim; Buys, Leonard, Drive module for machine.
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Ito Susumu,JPX ; Yoshioka Mitsushi,JPX, Electric injection molding machine.
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Lee, Wei-Jen, Electric injection molding machine.
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Liu,Hsing Chang; Chien,Yu Wei, Electrical injection velocity-pressure switching and pressure holding device.
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Choi,Christopher Wai Ming, Energy management apparatus and method for injection molding systems.
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Kleinau, Julie A.; Zuraski, Jeffrey A.; Shafer, Daniel W., Feedforward parameter estimation for electric machines.
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Jayaraman, Ganga P.; Lyles, Michael L.; Szulyk, Zenon P.; Haack, Bryan R., Force feel using a brushless DC motor.
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Looije Peter,CAX ; Ing Ronald,CAX ; Jacovich William,CAX, Frameless electric drive for a molding machine.
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Looije Peter A.,CAX ; Ing Ronald,CAX ; Jacovich William,CAX, Frameless electric drive for turret machine.
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Baader Uwe (Wuppertal DEX) Martens Gerhard (Remscheid DEX) Rafflenbeul Karl-Ludwig (Ennepetal DEX), Frequency inverting apparatus.
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Bulgrin Thomas C. ; Richards Thomas H. ; Eterovich George L., Hybrid injection molding machine.
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Bulgrin Thomas C. ; Richards Thomas H. ; Eterovich George L., Hybrid injection molding machine.
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Atsushi Koide JP; Koichi Matubayashi JP, Injection apparatus support mechanism for an injection molding machine.
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Eto Yoshinari,JPX ; Mori Naoki,JPX ; Yamaguchi Toyokazu,JPX, Injection molding apparatus.
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Onuma,Hiroyuki; Ogura,Katsuhito; Kido,Katsuyoshi; Tokuyama,Harumichi, Injection molding machine.
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Marazita, Jose R., Injection molding machine and controller.
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Kariya, Toshihiko; Hattori, Michitaka; Nozaki, Shigeru; Imaeda, Satoshi, Injection molding method and apparatus for controlling a mold temperature and displacement of an injection screw.
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Brunbauer, Klaus; Wilfing, Franz; Lechner, Andreas; Zoehling, Bernhard, Injection unit for an injection molding machine.
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Shaotang Chen ; Chandra Sekhar Namuduri, Low ripple torque control of a permanent magnet motor without using current sensors.
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Catanzaro John C. ; O'Bryan James E., Method and apparatus for detecting aberrant motor operation in a plastics processing machine.
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O'Bryan James E. ; Catanzaro John C. ; Topmiller David A., Method and apparatus for injection molding machine control.
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Naidu, Malakondaiah; Henry, Rassem Ragheb; Nehl, Thomas Wolfgang, Method and apparatus for torque control of a machine.
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Malakondaiah Naidu, Method and system for controlling torque in permanent magnet brushless electric motors.
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Feustel, Hans-Peter; Orthmann, Reinhard, Method for operating a brushless direct current motor.
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Koide Atsushi,JPX ; Matubayashi Koichi,JPX, Motor-driven-type injection molding machine.
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Higashida, Takaaki; Kadoriku, Shinji; Yutani, Hiroshi; Maruyama, Yoshio; Nakagawa, Tokiharu; Inoue, Kazuo; Kawasaki, Yoshihiro, Optical disk molding apparatus and method.
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Siegrist Ronald,CHX ; Stillhard Bruno,CHX ; Blochlinger Hugo,CHX, Process for injection molding machine with electric drives.
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Krieger, Geoff P.; Wittig, William H., Quadrant dependent active damping for electric power steering.
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Shimizu, Yuji; Hiroshima, Akane; Ono, Yutaka, Signal converter and control device.
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Shimizu, Yuji; Hiroshima, Akane; Ono, Yutaka, Signal converter and control device.
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Wada Zyozi,JPX, Three-phase brushless servo motor.
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Nady Boules ; Rassem Ragheb Henry ; Chandra Sekhar Namuduri ; Thomas Wolfgang Nehl ; Bruno Patrice Bernard ; Shaotang Chen, Torque ripple free electric power steering.
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Collier Hallman,Steven James, Transient compensation voltage estimation for feedforward sinusoidal brushless motor control.
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Klaus M. Barr, Two-stage electric injection unit for a molding machine.
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Patankar,Ravindra P., Velocity compensation control for electric steering systems.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Injection molding machines having a brushless DC drive system 원문보기

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[미국특허] Injection molding machines having a brushless DC drive system 원문보기

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