Construction and function
30
4.3 Assembly of the unit
Description
The central point of a Collamat C4300/C7300 unit is the traction unit housing. All
peripheral equipment’s are connected to the traction unit housing (flange
connectors).
All peripheral parts are protected against corrosion (powder-coated / anodized).
The traction roller is coated with a special sand paper like surface allowing a non-
slippery transport of the paper web.
The torque of the passive rewinder is adjustable (friction clutch).
The strength of the dancer arm of the rewinder is adjustable.
The traction roller is easy turn able (by hand) - in the switch off state of the labeler.
The Collamat C4300/C7300 can be mounted to an adjustable stand (vertical and/or
horizontal position adjustment).
4.4 Function
Description
The Collamat C4300/C7300 is a label dispenser used to dispense /apply labels to
products.
The paper web will be feed from the unwinder - across different deflection rollers - to
the dispensing edge – controlled by a special dancer arm – to the products. The
unwinder can unwind paper web rolls with a max. diameter of 350 or 250mm. The
brake and the strength of the dancer arm can be adjusted.
The dispensing edge is the place where the label will be stripped from the backing
paper. This is done by pulling the backing paper around the dispensing edge. A
controlled stepper motor is fulfilling this job. The backing paper is then guided to the
rewinder unit where the waste of the paper web (backing paper) is spooling winding
to the rewinder core.
The rewinder is a ribbon driven drive with friction clutch – powered by the traction
unit stepper motor.
Dispensing a label:
The product triggers the good sensor (!GSC-input) which starts the dispensing
sequence. The paper web will be guided over a sharp dispensing edge. The label on
the dispensing edge will be removed (peeled off) from the backing paper and will be
pushed/guided to the applicator pressure roller. As soon as this label reaches the
pressure roller, the label will be caught by the product. The pressure roller’s main
function is to gently wipe/roll on the label to the product surface. The backing paper
is pulled by the traction roller und guided to the rewinder (see above). The following
label on the top of the dispensing edge will be pushed forward until the leading edge
of the label reaches the so called predispensing distance (end of labeling sequence).
4.5 Operator panel + indicators
Description
Operating controls of the C4300/C7300 are found on the operator panel, operator
panel
Potentiometer SPEED - C4300: 1…25m/Min / - C7300: 1… 50m/Min.
Potentiometer LABEL PREDISPENSING - 0 … 10 (0 … 100mm)
Potentiometer LABEL SCANNER
- 1 … 10 (1 … 100mA)
FEED-key
Main switch POWER ON / OFF
There are more control inputs/outputs on the main terminals (inside – on main
board – bottom terminals).