The generator converts the mains voltage into high-frequency alternating voltage and transfers this voltage to the welding stack via a shielded HF cable.
The two distinguishing properties of our generators are their frequency (35kHz or 20kHz) and their output in watts. They offer fully automatic frequency adjustment, a constant amplitude, permanent sound protection and a quick-response overload protection. These features provide for superior quality and safety. Other available options include energy and power windows. We will be happy to assist you!
The table below shows an overview of all available generators and their functions.
|
Generators |
35/ |
35/ |
35/ |
20/ |
20/ |
20/ |
20/ |
20/ |
20/ |
20/ |
|
Output power W |
400 |
600 |
800 |
1000 |
1200 |
1500 |
2000 |
3000 |
4000 |
5000 |
|
Frequencies kHz |
35 |
35 |
35 / 20 |
35 / 20 |
35 / 20 |
20 |
20 |
20 |
20 |
20 |
|
Connection voltage |
230 V 50/60 Hz |
400 V 50/60 Hz |
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Dimensions - module |
19" 4 HE, 14 TE, depth 370 mm |
19" 4 HE, 28 TE, depth 370 |
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Dimensions - control cabinet |
110 mm x 213 mm x 275 mm |
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The control of the machine allows the operator to set all parameters required for the welding process. The main parameters are amplitude, time and welding pressure. The amplitude is infinitely variable. The time is divided into lead time, welding time and dwell time:
|
Lead time: |
This is the time that elapses before the ultrasound is switched on. The process is required to build up and exert pressure on the components by means of the feed unit. |
|
Welding time: |
The welding time is the actual ultrasonic residence time. |
|
Dwell time: |
The parameters for the so-called dwell time are set to allow the melt to cool down under pressure. |
The welding pressure can be set using the control and is regulated by a proportional valve installed inside the machine. There are three basic ways to control the welding process:
Welding by time: The measurement of the time starts with the application of the sonotrode.
Welding by displacement: When set to welding by displacement, the machine covers a welding distance that is controlled by the displacement transducer. This displacement can be set as absolute or relative displacement.
Welding by power or energy: When using welding by power, the operator can set the parameters for the power (Ws) that is supposed to be administered to the component by the machine.
These parameters can also be combined with others and used for monitoring purposes, e.g. welding by displacement. The set time will then act as the monitoring time. The control also offers the option of configuring welding by power and displacement monitoring. The control allows the operator to store recipes for different products. This is an important feature as these machines are usually used for processing a variety of products. Calling up recipes allows for a quick and easy switch to a new product. When setting up the machine, the operator can control all functions individually in manual mode. Finally, it is also possible to integrate the control into a network. The Ethernet port of the control is found on the rear of the housing. The Ethernet interface can be used to document such data as recipes, quantities and error messages. The controls offered by Maschinen + Technik Vogt GmbH are also available in multiple languages.
