The present invention relates to a magnetic plate for attracting cartridges. The magnetic plate comprises an upper cover, a support frame and a lower cover. The upper cover, the support frame and the lower cover are connected fixedly in order from top to bottom. The upper cover and the lower cover are engaged and form a case. The support frame is positioned within the case. Magnetic components are mounted between the support frame and the lower cover. The magnetic components comprise metal members and magnetic steel members connected fixedly to the metal members. The metal members are stuck on the bottom surface of the support frame. The metal steel members include first magnetic steel members and second magnetic steel members. The first magnetic steel members are arranged on the upper surface of the metal members and pass upwards through the support frame, and the second magnetic steel members are arranged on the lower surface of the metal members and pass through downwards through the lower cover. The N poles of the first magnetic steel members and the second magnetic steel members are arranged opposed to each other. The magnetic plate of the present invention has strong magnetic properties and thus can firmly attracting cartridges and holding the magnetic plate itself firmly on other metal surface. The area that can storage cartridges are large. The magnetic plate of the invention has simple structure, simple installation and production assembly. The magnetic plate has a small thickness and high space utilization rate.

Magnetic coupling devices are disclosed which may be configured in at least three states. The various states may be provided through one or more of altering a position of a permanent magnet relative to another permanent magnet and altering a current level in a coil surrounding a permanent magnet.

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.

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.

A device for separating and gripping an outermost sheet of ferromagnetic material from a stack of ferromagnetic sheet material, comprising: a carrier structure with a mount for attaching the carrier as an end-of-arm-tool (EOAT) to a robotic arm arranged for moving and positioning the device into an operating position adjacent a side of a stack of ferromagnetic sheets and a remote position removed from the stack of ferromagnetic sheets; a magnetic fanning apparatus mounted at the carrier structure and having a switchable magnet and a pair of fanning pole shoes magnetisable by the magnet with opposite polarities, the fanning pole shoes located at the carrier such that when in the operating position of the device these face the side of stacked sheets and extend over the thickness of at least the outermost and an underlying sheet of the stack, whereby in an on state of the magnet magnetic fields of like polarity are induced by the fanning pole shoes in overlapping sections of edge regions of these sheets and repulsive forces are generated whereby the outermost sheet seeks to lift away from the underlying sheet by magnetic repulsion; and preferably but optionally a sheet gripping apparatus mounted at the carrier structure arranged for contacting a face of the outermost sheet and secure the sheet to the EOAT for retrieval thereof upon the device being displaced from its operative position away from the stack of sheets.

A device for separating and gripping an outermost sheet of ferromagnetic material from a stack of ferromagnetic sheet material, comprising: a carrier structure with a mount for attaching the carrier as an end-of-arm-tool (EOAT) to a robotic arm arranged for moving and positioning the device into an operating position adjacent a side of a stack of ferromagnetic sheets and a remote position removed from the stack of ferromagnetic sheets; a magnetic fanning apparatus mounted at the carrier structure and having a switchable magnet and a pair of fanning pole shoes magnetisable by the magnet with opposite polarities, the fanning pole shoes located at the carrier such that when in the operating position of the device these face the side of stacked sheets and extend over the thickness of at least the outermost and an underlying sheet of the stack, whereby in an on state of the magnet magnetic fields of like polarity are induced by the fanning pole shoes in overlapping sections of edge regions of these sheets and repulsive forces are generated whereby the outermost sheet seeks to lift away from the underlying sheet by magnetic repulsion; and preferably but optionally a sheet gripping apparatus mounted at the carrier structure arranged for contacting a face of the outermost sheet and secure the sheet to the EOAT for retrieval thereof upon the device being displaced from its operative position away from the stack of sheets.

A method and a device for individually supplying rollable discoidal components stocked in a reservoir in a supply position, wherein one component is respectively held in the supply position with the aid of a magnetic field of the device.

An apparatus for de-stacking sheet metal blanks uses electro-magnetic pulses to separate sheet metal blanks from a stack of blanks. A fixture supports an electromagnetic attraction device that includes one or more multi-turn electrical coils and one or more insulated metal screens. The coil is electrically connected to a bank of capacitors. The metal screen is disposed in an electrical insulation material and is retained by the fixture between the coil and the top blank of the stack of blanks. Suction cups perform the primary lifting function and are connected to a vacuum source. The suction cups may be supported by the same fixture or another associated fixture that cooperates with the coil and insulated screen.

An apparatus for de-stacking sheet metal blanks uses electro-magnetic pulses to separate sheet metal blanks from a stack of blanks. A fixture supports an electromagnetic attraction device that includes one or more multi-turn electrical coils and one or more insulated metal screens. The coil is electrically connected to a bank of capacitors. The metal screen is disposed in an electrical insulation material and is retained by the fixture between the coil and the top blank of the stack of blanks. Suction cups perform the primary lifting function and are connected to a vacuum source. The suction cups may be supported by the same fixture or another associated fixture that cooperates with the coil and insulated screen.

Magnetic coupling devices are disclosed which may be configured in at least three states. The various states may be provided through one or more of altering a position of a permanent magnet relative to another permanent magnet and altering a current level in a coil surrounding a permanent magnet.