Solid horn with cooling means

Abstract

Abstract 1,262,534. Seaming non-metallic sheet material. BRANSON INSTRUMENTS Inc. 20 Oct., 1969 [20 Nov., 1968], No. 51404/69. Heading B5K. Sonic or ultrasonic welding apparatus comprises a horn 10 adapted to vibrate along its. longitudinal axis as a half-wave resonator in response to (ultra)sonic acoustic energy being applied thereto at one end, the horn 10 including a shroud 30 disposed about that portion of the horn in proximity to the work engaging surface, the shroud 30 delimiting a peripheral space about this portion, and means for directing a coolant to flow in this space to cool the horn. The horn 10 may be made of titanium and is coupled by a stud 12 to a sonic energy converter as described in U.S.A. Specification 3,328,610. A central bore 16 in the horn communicates with spaced radial holes 20 each associated with a groove 22 providing a fluted portion on the horn. The metal shroud 30 is secured to the horn by a tab 32, a screw 34 and a resilient gasket 36 in the nodal region of the horn. Also at the nodal region, cooling gas, e.g. dry nitrogen or air, is fed through a hose 44 and a radial hole 40 into the bore 16. The cooling gas passes downwards and escapes through the holes 20.

Inventors

• 👤 Edward G Obeda

Bibliographic Details