Sheet Feeder0 pages

Sheet Feeder
Cantec supplies a range of sheet-feeding systems perfectly suited for your applications.

Straight feeder
for straight-sided and scrolled sheets or coil feed (operating without idle strokes)
Single zig-zag sheet feeder
for straight-sided and scrolled sheets (operating with idle strokes)
Double zig-zag sheet feeder
for straight-sided and scrolled sheets (operating without idle strokes)

Straight-sheet or coil feeder
The Servodrive roll feed mechanism guarantees measured precision feeding

The roller feed mechanism is controlled by servomotors that generate highly precise advance
movements with accurate, non-cumulative positioning.
A digital servo controller ensures feed profiles with optimum acceleration, enabling smooth, non-slip
acceleration for thin materials.

Sheet alignment
Sheets are centered by alignment wedges at the scroll. Straight-sided sheets have three-point
alignment.

The END-O-MAT for double-row tooling is equipped with a roller feed mechanism at the infeed. This
roller feed mechanism has been specially dened to process thin materials, with adjustable pressure
and a pressure roller with optimized mass moment of inertia. High feed precision and, consequently,
the smallest possible web width are achieved by means of a precisely ground feed-controlling upper
roller and a highly-dynamic servo-drive. The drive is controlled by an intelligent, fully digital servocontrol which allows acceleration-optimized feed profiles to be set. The relatively thin sheet can thus
be accelerated, decelerated and positioned smoothly and without jerks.
This feature is of special importance for conveying of the sensitive scrap skeleton in particular.
Therefore the roller feed mechanism at the discharge is of similar den, but with special emphasis on
careful transport of the scrap skeleton. The feed precision of both roller feed mechanisms is better
then 0.05 mm.
Flow of material through the END-O-MAT with double-row tooling:
Some advantages and specific features of the process are best described by describing the flow of
material through the END-O-MAT.
A linear feeder, which is controlled by a servomotor, lifts the uppermost sheet from the stack by selfregulating suction units and transfers it to the point of infeed. Alignment wedges centre the sheets at
the scroll. Correct alignment is monitored by proximity switches. Alignment at the scroll does not
require the sheets to be of exact width and has a higher tolerance of deviation from angularity.
Sensors are monitoring the alignment. In case of misalignment, the machine automatically carries out
two more alignment attempts. If correct alignment of the sheet is still not possible, the machine is
stopped and displays a fault alarm.

04.04.2011

Page 1 of 6