Patent ID: 8925607
Filing Date: 2015-01-06
Classification: A61F,B29C,B29L,Y10T

Abstract:
1. An ultrasonic joining apparatus, comprising: a rotator made of a member expansible or contractible by heat; a plurality of anvils provided at predetermined intervals in a rotation direction of the rotator; an ultrasonic horn configured to output ultrasonic vibrations; and a temperature adjustment mechanism configured to adjust a temperature of the rotator, wherein the rotator and the ultrasonic horn are arranged to face each other with an intermediate web being conveyed therebetween, the intermediate web including a first continuous web and a second continuous web overlapping each other, each of the plurality of anvils and the ultrasonic horn pinch a corresponding region of the intermediate web to perform ultrasonic joining on the corresponding region, wherein each of the anvils includes: the temperature adjustment mechanism and the heat transmitter are arranged between a rotational axis of the rotator and the projection, the temperature adjustment mechanism and the heat transmitter are arranged in each of the plurality of anvils, and the temperature adjustment mechanism is configured to adjust the temperature of the rotator on a per anvil basis.