Machine Description
Operating Instructions
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ITS6_135_Manual_EN.doc
4.6
Functional description of the components and parts
4.6.1
Unwinding unit
Purpose
Roll of printing substrate is secured on the clamping bar mandrel and held
into place laterally with end plates.
Technical realization
A drive unit unwinds the printing substrate continuously from the unwinding
unit at a speed adapted to the printing process.
Fig. 13. Detailed view of the unwinding unit
Pos. Element
Meaning
1
Unwinder shaft
Supports and centers roll of printing substrate
2
clamping bar
Secures the printing substrate roll to the shaft
3
Rotary switch
Tightens or releases the roll of printing sub-
strate
Unwinder shaft
The unwinder shaft has a diameter of 69 mm. With the help of three radial
adjustable clamping bars, it can accommodate rolls of material with an in-
ner core diameter of 70 to 78 mm: The three clamping bars are tightened
and released by using the rotary switch.
In order to ensure that the roll is seated correctly on the unwinder shaft,
rolls with heavy cardboard or plastic cores should always be used.
1
2
3