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.

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.

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.

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.

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.

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.

A sheet separating apparatus of the present invention includes a main body portion including a placement face on which a plurality of layered sheets are placed, a convex portion that is protruded from the placement face and on which ends of the sheets are placed, and a magnetic circuit arranged at the main body portion. The magnetic circuit includes a plurality of permanent magnets aligned arranged in line in X direction along the placement face with the same poles of adjacent permanent magnets being faced to each other, first yokes each arranged between the permanent magnets, nonmagnetic members each arranged between the permanent magnets and the sheets, and second yokes each arranged between the nonmagnetic members.

A sheet separating apparatus of the present invention includes a main body portion including a placement face on which a plurality of layered sheets are placed, a convex portion that is protruded from the placement face and on which ends of the sheets are placed, and a magnetic circuit arranged at the main body portion. The magnetic circuit includes a plurality of permanent magnets aligned arranged in line in X direction along the placement face with the same poles of adjacent permanent magnets being faced to each other, first yokes each arranged between the permanent magnets, nonmagnetic members each arranged between the permanent magnets and the sheets, and second yokes each arranged between the nonmagnetic members.

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.