FIELD: machine building.
SUBSTANCE: invention relates to a coupling device for fastening a stack of sheets in a connecting element made of a magnetic material. Device comprises a support for a connecting element formed by a U-shaped profile with a base and two support elements, heating element located between U-shaped support elements and contacting with base, and a switch. Switch serves to switch on/off the heating element with the help of a magnet. Magnet is located between support elements of U-shaped profile and moves towards base of U-shaped profile. U-shaped profile contains shelves directed towards the center of the U-shaped profile and holding the magnet away from the base and/or heating element when the magnet is moved towards the base of the U-shaped profile.
EFFECT: energy consumption is reduced.
8 cl, 5 dwg
