US 10,779,364 B2Granted

Induction heated roll apparatus

AssigneeTokuden Co., Ltd.

InventorsTakatsugu Kitano, Toru Tonomura, Mamoru Watanabe

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Abstract

The present invention uniformly cools a roll body and/or an induction heating mechanism by gas without complicating the configuration around the roll body. An induction heated roll apparatus includes a roll body having a hollow part, an induction heating mechanism disposed in the hollow part to subject the roll body to induction heating, and a cooling mechanism to cool the roll body and/or the induction heating mechanism by generating a gas flow in a clearance between the roll body and the induction heating mechanism. The cooling mechanism includes a suction port disposed on one axial end side of the roll body that communicates with the clearance, an exhaust port disposed on an opposite axial end side of the roll body that communicates with the clearance, and a suction mechanism coupled to the exhaust port that sucks the gas in the clearance from the exhaust port.

Claims19

Dependent claims

An induction heated roll apparatus comprising:

a roll body having a hollow part;
an induction coil disposed in the hollow part and designed to cause the roll body to be subjected to induction heating;
and
a cooling mechanism designed to cool the roll body and/or the induction coil by generating a gas flow in a clearance part between the roll body and the induction coil,
wherein the cooling mechanism comprises:
a suction port disposed on one axial end side of the roll body and designed to communicate with the clearance part;
a plurality of exhaust ports disposed on an outer radial surface of a drive shaft at an opposite axial end side of the roll body and designed to communicate with the clearance part, or formed in a flange part of a journal part of the roll body and designed to communicate with the clearance part;
and
a suction mechanism, including a motor fan, a blower, a gas flow amplifier or a pump, coupled to the plurality of exhaust ports and designed to suck gas in the clearance part from the plurality of exhaust ports,
wherein the plurality of exhaust ports are rotatably coupled to the suction mechanism.

7 more elements

Dependencies are inferred from the claim text.