Automatic uncoil winder, uncoilers or unwinders are available in various versions for different coils and coil sizes with rpm, speed, position and tensile force control.
Highly accurate tensile force and tensile stress control of the unwound winding material is achieved by the modular integration of the patented electromagnetic dancer on the unwinder. Wire brakes or wire tensioners are thus a thing of the past.
|ED class unwinder|
|Unwinder of the ED class as a laboratory and table device|
|Unwinder MW class / Multiwinder|
|Multi-winder as unwinder and rewinder for the clean room|
For many wound materials, e.g. for flat wires, tapes, foils or for unwinding with short distances it is important that the product is always managed on one line.
Winders with additional traversing coil drives, for example the MW class of multiwinders, can move the coil in the axial direction (traversing type) as well as in a rotating movement so that the unwound material can be unwound at a fixed transfer position perpendicular to the coil.
As far as unwinders are concerned, Supertek offers a sensor-controlled overrun control that ensures that the product is always unwound at right angles to the traversing coil in a line. This avoids, amongst other things, fluctuations in tensile force even in the most delicate range and the products are less stressed.
Several unwinder units with a flexible number can be accommodated in a compact machine frame for multiple unwinders.
The unwinder is operated thanks to the serial data communication via the different HMIs. Using Supertek's operating equipment is a convenient solution for setting and monitoring the parameters. Supertek's CMC can be used for simple applications. Supertek's touch panel solutions with the PC-based SUMMI software, are suitable for more demanding applications, such as in multiple unwinders or for rewinding machines.
Obviously, operation, monitoring, formula management and data saving can also be performed by another manufacturer's PLC or HMI, such as Siemens, Beckhoff or Allen-Bradley, etc.
Advantages of Supertek unwinders compared with traditional systems:
Can be uses as an unwinder, uncoiler, dispenser, outlets, shaft winder, reel, unreeler, multiple unwinder and can be used in annealing furnaces, dyeing plants, measuring devices, stranding machines, laboratory equipment, rewinding machines, winding machines etc.
Capstans are used to isolate the tensile force and can also be used to specify the line speed or the tensile stress.
For example, if wire or solder has to be drawn out of a drum, a capstan with a connected dancer can be used as an active, tensile force-controlled capstan and thus replaces the role of a spool-driven, tensile force-controlled unwinder. Capstans are also suitable for withdrawing wires or fibres.
Supertek supplies different capstans for this with highly accurate speed or tensile force controls.