Complaint
| Item | Parameter |
| Frequency | 40khz |
| Power | 500w |
| Ceramice chips | 4chips |
| Speed | 20m/min in max |
| Welding width | 15mm in max |
| Welding horn | 20Khz rotary horn |
| Welding type | Continues welding |
An Overview
It is amazing to see what ultrasonic energy can achieve in joining, cutting, patterning, and quilting on synthetic fabrics. These and more operations are done without the use of thread or adhesives and at speeds much greater than can be reached with sewing machines - as much as four times the speed!
How does it work? As the fabric passes under the machine's horn, ultrasonic vibration causes the materials to heat up and fuse together. Without any additional glue or heat, the seam is finished. When used with cutting edge tooling, the vibration cuts through the fabric and seals the edges of the cut to eliminate any fraying at the edges.
Sewing machine operators quickly adjust to this threadless sewing technique. Modular systems are available for integration into automated textile manufacturing equipment and web handling equipment.
Plunge welding or cutting is accomplished by placing the material over a fixed anvil and having the horn or tool descend to the fabric. This approach is used to punch holes, such as buttonholes, to cut fabric strips to preset lengths, or to join pieces together.
Principles of Operation
Every ultrasonic unit contains the following five elements:
1. A POWER SUPPLY which takes line power at 50 or 60 cycles and changes it to high ultrasonic frequency at 20,000 cycles per second or even higher.
2. A CONVERTER which contains piezoelectric crystals which change the incoming high frequency electrical signal to mechanical vibration.
3. A BOOSTER which transmits the vibration energy and serves to increase its amplitude in much the same way as volume control on a radio.
4. A HORN which delivers the vibration energy to the plastic film or fabric to be worked on.
5. AN ANVIL or backup part which supports the work piece and, in the case of textiles, takes the form of a pattern wheel or non-rotating cutter wheel depending on the application.
The ultrasonic vibration is transmitted from the horn to the material. developing frictional heat where they touch. This momentary heat fuses the edges of the fabric. If double plies are present, the plies join together. Where a cutting edge is used on the anvil, the fabric is cut through and the edges sealed at the same time.
Materials
Materials may be 100 % synthetic or blends with up to 40 % natural fibers. Nonwovens, woven, stretch woven or knit materials can be bonded and cut or slit. Acrylics, acetates, polyester, nylon, polyethylene, polypropylene, spandex and PVC are all suitable for bonding or cutting. In general, the higher the synthetic content, the easier it is to cut and seal with ultrasonic energy.
Some fabrics may be directional; that is, th
e fibers in one direction have a different composition than the fibers in the other direction. This may lead to different results depending on the direction of the cut and seal.
Unrivaled attribute: Continuous welding force monitoring!
ALL welding parameter are measured and regulated "speed, energy AND force"
Innovative dual roller system: Cutting wheel can be activated by motor
New: Versatile platform for various options:
- motorized puller
- simple parallel puller
New touch screen (simple handling with user-friendly icons)
20khz new rotray horn design , more powerful than 35Khz.
Digital generator, frequency auto tracking.
