The present disclosure relates to methods and apparatuses for mechanically modifying substrates. The apparatuses herein may include a tool roll and an anvil roll. The tool roll may include tooling members adapted to perform various different operations, such as bonding, cutting, embossing, and/or activation of advancing substrates. The tooling members and associated tooling surfaces may not extend completely around the circumference of the tool roll. As such, the tool roll also includes one or more bearer rings that engage the anvil roll during portions of the tool roll rotation where the tooling members are not in engagement with the anvil roll. The tooling members and bearer rings herein are configured to help reduce vibrations in the anvil and/or tool roll caused by the alternating engagements of the tooling surfaces and bearer rings with the anvil roll during rotation.

An ultrasonic welding device includes a rotary support mechanical assembly rotatable about a rotation axis and operable to support a sheet over a circumference centered on the rotation axis, the sheet being continuously supplied; a horn and an anvil attached to the rotary support mechanical assembly to thereby revolve about the rotation axis and sandwich the sheet supported over the rotary support mechanical assembly to weld the sheet; a cam drum and a cam follower for driving the anvil in such a manner that the anvil moves relative to the horn; a holding member body; and a power transmission mechanism for distributing a power generated by the cam and the cam follower in such a manner the power is transmitted to the anvil and holding member body in opposite directions.

The ultrasonic welding device includes a rotary support mechanical assembly rotatable about a rotation axis and operable to support a sheet over a circumference centered on the rotation axis, the sheet being continuously supplied; and a horn and an anvil operable to sandwich the sheet supported over the rotary support mechanical assembly to thereby weld the sheet. The rotary support mechanical assembly includes a rotary member rotatable about the rotation axis, a plurality of sheet support members each having a support surface for supporting the sheet, and a mounting section for allowing the plurality of sheet support members to be attached to the rotary member in a state that the sheet support members lie on the same circumference about the rotation axis, and allowing attaching positions of the sheet support members to the rotary member to be adjusted in radial directions centered on the rotation axis.