Conventional use of ultrasonic ground detect uses an electrical signal from the controller or generator to the anvil to detect the grounding of the sonotrode against the cutting anvil. This requires isolation of the anvil from the rest of the machine, and only leads to marginal improvement of cutting results. Herrmann Ultrasonics Inc., based in Bartlett, IL, has introduced an innovative approach to solve these types of challenging applications.
In a plunge weld mode, a standard cutting die is mounted on the new cutting module from Herrmann Ultrasonics. This cutting die can have a length of up to 250 mm or a two-dimensional shape contained within an approximately 75 mm x 250 mm area. If a seal pattern is required in addition to the cutting, a fixed anvil can also be mounted in conjunction with the cutting module. The cutting module is a new standard component that can be retrofitted to most cut and seal applications. Immediate results can be realized as the cutting module is easy to set up and only requires a supply of compressed air.