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公开(公告)号：US10040649B2
公开(公告)日：2018-08-07
申请号：US15364563
申请日：2016-11-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Thomas W. Nehl , James J. Abramczyk
Abstract: An electrodynamic apparatus for separating electrically conductive, non-ferrous, blanks includes a linear induction machine (LIM) stator, a polyphase power source, and a controller. Stator slots are wound with polyphase AC windings. The power source outputs a polyphase voltage or current. The controller supplies the windings with the voltage or current via the power source to induce an electric current in an uppermost blank and produce a traveling wave magnetic field. The electric current and magnetic field generate a force on the uppermost blank sufficient for separating the uppermost blank from an adjacent blank in the stack. A method for separating the blanks includes positioning the stack with respect to the apparatus and supplying the windings with AC voltage or current via the power source to generate the traveling wave magnetic field and induce the electric current, and ultimately generate the force on the uppermost blank.
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Patent Agency Ranking
公开(公告)号：US20170158441A1
公开(公告)日：2017-06-08
申请号：US15364424
申请日：2016-11-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Thomas W. Nehl , James J. Abramczyk , Kenneth J. Shoemaker , Michael J. Karagoulis , James S. Dorenbecker
CPC classification number: B65H3/16 , B65G54/02 , B65G59/04 , B65H2515/71 , B65H2555/31 , B65H2701/1714 , B65H2701/173 , H02K15/02 , H02K41/025
Abstract: Disclosed are electromagnetic apparatuses for separating non-ferrous blanks, methods for making and for using such apparatuses, and automated systems with electromagnetic destacking unit for handling stacks of non-ferrous blanks. Presented is a destacking unit with a magnet placed adjacent a stack of non-ferrous blanks, and two electrical terminals placed in contact with the top blank of the stack. The magnet generates a magnetic field across the surface of the top blank. The terminals pass electrical current through the blank transversely across the top surface. The direction of the electrical current is generally normal to the direction of the magnetic field such that a magnetic separation force sufficient to displace the blank from the stack is generated in a generally vertical direction.
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公开(公告)号：US09926146B2
公开(公告)日：2018-03-27
申请号：US15364547
申请日：2016-11-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Thomas W. Nehl , James J. Abramczyk , Kenneth J. Shoemaker
CPC classification number: B65H3/16 , B65G54/02 , B65G59/04 , B65H2515/71 , B65H2555/31 , B65H2701/1714 , B65H2701/173 , H02K15/02 , H02K41/025
Abstract: A magnetodynamic apparatus for separating conductive non-ferrous blanks includes at least one magnet positioned adjacent to a stack of the blanks and configured to generate a magnetic field in a first direction with respect to a major surface of an uppermost blank within the stack. The apparatus includes an actuator device for positioning the magnet with respect to the stack during production of an electric current in a second direction along the major surface. The second direction is normal to the first direction such that a magnetic separation force is generated in a third direction normal to the first and second directions. The separation force is sufficient for magnetically separating the uppermost blank from remaining blanks in the stack. The magnets may be rotated on a rotor or held stationary. The electric current may be induced or directly injected into the uppermost blank.
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公开(公告)号：US20170163132A1
公开(公告)日：2017-06-08
申请号：US15364563
申请日：2016-11-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Thomas W. Nehl , James J. Abramczyk
IPC: H02K15/02 , H02K41/025
CPC classification number: B65H3/16 , B65G54/02 , B65G59/04 , B65H2515/71 , B65H2555/31 , B65H2701/1714 , B65H2701/173 , H02K15/02 , H02K41/025
Abstract: An electrodynamic apparatus for separating electrically conductive, non-ferrous, blanks includes a linear induction machine (LIM) stator, a polyphase power source, and a controller. Stator slots are wound with polyphase AC windings. The power source outputs a polyphase voltage or current. The controller supplies the windings with the voltage or current via the power source to induce an electric current in an uppermost blank and produce a traveling wave magnetic field. The electric current and magnetic field generate a force on the uppermost blank sufficient for separating the uppermost blank from an adjacent blank in the stack. A method for separating the blanks includes positioning the stack with respect to the apparatus and supplying the windings with AC voltage or current via the power source to generate the traveling wave magnetic field and induce the electric current, and ultimately generate the force on the uppermost blank.
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公开(公告)号：US09914599B2
公开(公告)日：2018-03-13
申请号：US15364424
申请日：2016-11-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Thomas W. Nehl , James J. Abramczyk , Kenneth J. Shoemaker , Michael J. Karagoulis , James S. Dorenbecker
CPC classification number: B65H3/16 , B65G54/02 , B65G59/04 , B65H2515/71 , B65H2555/31 , B65H2701/1714 , B65H2701/173 , H02K15/02 , H02K41/025
Abstract: Disclosed are electromagnetic apparatuses for separating non-ferrous blanks, methods for making and for using such apparatuses, and automated systems with electromagnetic destacking unit for handling stacks of non-ferrous blanks. Presented is a destacking unit with a magnet placed adjacent a stack of non-ferrous blanks, and two electrical terminals placed in contact with the top blank of the stack. The magnet generates a magnetic field across the surface of the top blank. The terminals pass electrical current through the blank transversely across the top surface. The direction of the electrical current is generally normal to the direction of the magnetic field such that a magnetic separation force sufficient to displace the blank from the stack is generated in a generally vertical direction.
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公开(公告)号：US20170158437A1
公开(公告)日：2017-06-08
申请号：US15364547
申请日：2016-11-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Thomas W. Nehl , James J. Abramczyk , Kenneth J. Shoemaker
IPC: B65G54/02
CPC classification number: B65H3/16 , B65G54/02 , B65G59/04 , B65H2515/71 , B65H2555/31 , B65H2701/1714 , B65H2701/173 , H02K15/02 , H02K41/025
Abstract: A magnetodynamic apparatus for separating conductive non-ferrous blanks includes at least one magnet positioned adjacent to a stack of the blanks and configured to generate a magnetic field in a first direction with respect to a major surface of an uppermost blank within the stack. The apparatus includes an actuator device for positioning the magnet with respect to the stack during production of an electric current in a second direction along the major surface. The second direction is normal to the first direction such that a magnetic separation force is generated in a third direction normal to the first and second directions. The separation force is sufficient for magnetically separating the uppermost blank from remaining blanks in the stack. The magnets may be rotated on a rotor or held stationary. The electric current may be induced or directly injected into the uppermost blank.
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