|
Operation Procedure |
|
PD |
Palletized products are transferred to the machine
via transfer conveyors. The system automatically detects the height
of the products with a sensor and determines the necessary length of
film to pack the products. |
|
QD |
The draw rollers pull one screenful of the film to
the lower end of the vacuum pickup. |
|
RD |
RD Gusset sections of the film tube are pulled apart
by vacuum suction, then, opening arms which are individually
equipped with a clamp unit firmly grip the film tube at its four
corners. |
|
SD |
Each clamp unit, keeping a firm hold of the film,
moves outwards in order to spread the film evenly over the contour. |
|
TD |
Four winder fingers, mounted on the extender, move
horizontally to the position where they can enter the opened film
and ascend up to the specified position. The winder expands again to
the size of the opening to receive the film. |
|
UD |
The winder rollers move toward the fingers to hold
the film between the rollers and the fingers. |
|
VD |
The draw rollers draw the film by the length
additionally required. The winder rollers haul in the film and wind
it around the fingers in the accordion form. |
|
WD |
When the film is sufficiently drawn, the rollers stop
and the film end is impulse-sealed and cut. Temperature is
controlled by the controller of the high reply. |
|
XD |
When a series of operations have been successfully
completed, the extender stretches to accommodate the products with a
good margin. |
|
POD |
The extender descends, and the tucked film is
unfolded to cover the products. The winder rollers return to the
origin when the timer counts down from the start of descending.
(Please refer to the operation process illustrated at the far right) |
|
PPD |
On reaching the pre-set position, the winder rollers
move to the fingers and hold the film to prevent it from slipping
off from fingers. Keeping this state, the extender further descends
to below the products and releases the film, which is shrunk to
smaller than the product size. By this, the leading edge of the film
is securely pushed into the space below the pallet to stabilize the
products on the pallet. |
|
PQD |
The extender expands to clear the products and
ascends to the origin. |
|
PRD |
The packed products are discharged by the transfer
conveyor while the next products to be packed arrive at the set
position on the machine (return to step 1) |
