Rotary ultrasonic bonding apparatus and methods using load cell
US6537401B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2000 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Mar 24, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1741
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This invention pertains to apparatus and methods for creating ultrasonic bonds in sequentially advancing absorbent article workpiece segments, in a bonding nip. The ultrasonic bonding apparatus comprises a frame, anvil support apparatus, horn support apparatus, closure apparatus, a load cell support member, and a load cell. The ultrasonic horn and the anvil roll collectively are mounted and configured such that the ultrasonic horn and the anvil roll can be brought together, via the closure apparatus, to define the nip therebetween. The load cell is mounted to the load cell support member such that force representative of force exerted on the anvil roll at the nip is detected by the load cell. In preferred embodiments, the invention includes outputting information from the load cell and adjusting force in the nip in response to the information received from the load cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.