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An ultrasonic rotary horn has tapered input sections for the conversion of axial acoustic energy into radial acoustic energy. The preferred rotary horn includes a first half having a first radial weld section and a first axial input section for receiving a first axial acoustic energy. The rotary horn further includes a second half coupled to the first half. The second half has a second radial weld section and a second axial input section for receiving a second axial acoustic energy. Each half has a coned section defined by an inner tapered surface and an outer tapered surface such that the halves convert a portion of the first and second axial acoustic energy into radial acoustic energy. Each inner tapered surface forms an inner angle with respect to an axis of the horn and each outer tapered surface forms an outer angle with respect to the axis.
A rotary ultrasonic assembly mounted in a bearing housing that can be mounted in any orientation. It is available in 20, 28,30,35 kHz with bond widths of up to18MM. The bonder is intended for machinery manufacturers and experienced end users who desire to develop their own actuation and tooling solutions. Ultrasonic Sewing Machines operate like a traditional rotary sewing machine but produce soft, smooth seams that are impervious to moisture or fluids.
| Item | Parameter |
| Frequency | 35Khz |
| Power | 800W |
| Ceramice chips | 4chips |
| Speed | 20m/min in max |
| Welding width | 10mm in max |
| Welding horn | 35Khz rotary horn |
| Welding type | Continues welding |
Rps-sonic supply high power rotary ultrasonic systems to the packaging, hygiene and specialty converting industries.
While a number of horn configurations have been developed, it is well known that a good way to attain high quality and high speed ultrasonic welds is to use a rotary horn with a rotating anvil. Typically, a rotary horn is cylindrical and rotates around an axis. The input acoustic energy is in the axial direction and the output acoustic energy is in the radial direction. The horn and anvil are essentially two cylinders positioned close to each other, rotating in opposite directions with equal or nonequal tangential velocities. The parts to be bonded pass between these cylindrical surfaces at a linear velocity which usually matches the tangential velocity of these cylindrical surfaces. Matching the tangential velocities of the rotary horn and the anvil with the linear velocity of the parts can minimize the drag between the horn and the parts.
Rotary horns are therefore typically made up of at least an axial input section and a radial weld section. The input section receives the axial acoustic energy, while the weld section applies the converted radial acoustic energy to the target parts. While the above-described conventional rotary horn is acceptable for some applications, certain important difficulties remain. One difficulty relates to the desire to obtain a high level of amplitude uniformity. Amplitude uniformity is effectively a measure of the percent of the weld receiving the same amount of weld energy. Specifically, amplitude uniformity is determined by measuring the maximum displacement of the external surface of the weld section (i.e., the weld “face”) for a given input excitation. The minimum displacement for the same excitation is also measured, and the ratio of the minimum displacement to the maximum displacement represents the amplitude uniformity. Thus, a rotary horn with an amplitude uniformity approaching one hundred percent would produce very uniform output acoustic energy over its entire weld face. High amplitude uniformity results in more predictable welds and ultimately lower manufacturing costs.
An ultrasonic rotary horn has tapered input sections for the conversion of axial acoustic energy into radial acoustic energy. The preferred rotary horn includes a first half having a first radial weld section and a first axial input section for receiving a first axial acoustic energy. The rotary horn further includes a second half coupled to the first half. The second half has a second radial weld section and a second axial input section for receiving a second axial acoustic energy. Each half has a coned section defined by an inner tapered surface and an outer tapered surface such that the halves convert a portion of the first and second axial acoustic energy into radial acoustic energy. Each inner tapered surface forms an inner angle with respect to an axis of the horn and each outer tapered surface forms an outer angle with respect to the axis.
A rotary ultrasonic assembly mounted in a bearing housing that can be mounted in any orientation. It is available in 20, 28,30,35 kHz with bond widths of up to18MM. The bonder is intended for machinery manufacturers and experienced end users who desire to develop their own actuation and tooling solutions. Ultrasonic Sewing Machines operate like a traditional rotary sewing machine but produce soft, smooth seams that are impervious to moisture or fluids.
| Item | Parameter |
| Frequency | 35Khz |
| Power | 800W |
| Ceramice chips | 4chips |
| Speed | 20m/min in max |
| Welding width | 10mm in max |
| Welding horn | 35Khz rotary horn |
| Welding type | Continues welding |
Rps-sonic supply high power rotary ultrasonic systems to the packaging, hygiene and specialty converting industries.
While a number of horn configurations have been developed, it is well known that a good way to attain high quality and high speed ultrasonic welds is to use a rotary horn with a rotating anvil. Typically, a rotary horn is cylindrical and rotates around an axis. The input acoustic energy is in the axial direction and the output acoustic energy is in the radial direction. The horn and anvil are essentially two cylinders positioned close to each other, rotating in opposite directions with equal or nonequal tangential velocities. The parts to be bonded pass between these cylindrical surfaces at a linear velocity which usually matches the tangential velocity of these cylindrical surfaces. Matching the tangential velocities of the rotary horn and the anvil with the linear velocity of the parts can minimize the drag between the horn and the parts.
Rotary horns are therefore typically made up of at least an axial input section and a radial weld section. The input section receives the axial acoustic energy, while the weld section applies the converted radial acoustic energy to the target parts. While the above-described conventional rotary horn is acceptable for some applications, certain important difficulties remain. One difficulty relates to the desire to obtain a high level of amplitude uniformity. Amplitude uniformity is effectively a measure of the percent of the weld receiving the same amount of weld energy. Specifically, amplitude uniformity is determined by measuring the maximum displacement of the external surface of the weld section (i.e., the weld “face”) for a given input excitation. The minimum displacement for the same excitation is also measured, and the ratio of the minimum displacement to the maximum displacement represents the amplitude uniformity. Thus, a rotary horn with an amplitude uniformity approaching one hundred percent would produce very uniform output acoustic energy over its entire weld face. High amplitude uniformity results in more predictable welds and ultimately lower manufacturing costs.
