DFC NSV-400, Operation Manual & Product Specifications, Page: 12 / 26

13
D E S C R I P T I O N A N D S E T U P
The description of the main units of the machine follows the film path from the material spool to
placement on the product, in logical sequence.
2.1 F
ULLSPOOL
A
SSEMBLY

The fullspool assembly consists of a stainless steel reservoir tray containing a freely rotating
spindle onto which the reel of material is loaded. The spool is unwound to supply the
machine by a motor driven roller and nip roller system. Material is supplied on demand once
a photo electric sensor is cleared an the drive is switched off after a timed period. See section
2.2.

To load a new reel of film, refer to the illustration which shows the material unwind full
spool assembly.

Located in the center of the outer spool disc is a quick-lock device which secures the disc to
the spool, this must be rotated anti-clockwise to enable removal of the disc. Place a new reel
of film on the unwind spool, making sure the cardboard core is located over the aluminum
disc center of the rear disc, and that the film unwinds in the direction shown. Replace the
outer disc and apply pressure to nip the reel of film between the two discs. Rotate the
camlock in a clockwise direction to secure the disc to the spool.
2.2 A
UTOMATIC
F
ILM
F
EED
(
FIG
. 1)

A Photoelectric switch mounted on the side of the material reservoir emits an infrared light
beam across the reservoir tray. This beam is bounced back to a receiver in the switch by a
reflector mounted on the opposite side of the tray.

If the beam is not broken i.e. the tray is empty, the P.L.C. will switch on the material unwind
driver motor to dispense film from the fullspool into the tray. When the film reaches the tray
and breaks the beam, film will continue to be dispensed for a further 5 seconds (if needed)
before stopping to ensure the demand of the machine is met.

Having carried out the instructions in Section 2.1 (and Section 2.3 if required), press the
machine START button located on the front of the machine and film will be dispensed into
the material reservoir tray as described above.