Automatic plastic roll film tray box sealing machine with 2 lanes food container top film heat sealing packing machine
Tray volume:50-500ml(can adjust)
The rated Pressure:0.6-0.8MPa
Container Material:PE/PP/PET/Paper/Aluminum Foil
Empty trays are loaded by a tray denester on the infeed line and conveyed up to the sealing station. The sealing operation consists in welding a thermoplastic film on the edges of the trays,the operation being performed in a vacuum or in a neutral gas atmosphere. Before any sealing operation, a new film is unwind, positionned over the trays, welded on the edge of the trays and wind again on a scrap roll.
Machine detail pictures:
Machine working flow:
A Tray entry detection
B Upper and lower limit positions of the dancing arm
C Push-bar withdrawn position
D Position of maximum advance
E Differential pressure sensor
1 Chain-Driven Indexer
Single conveyor comprising a series of transverse bars with two lateral driving chains.
2 Sealing Station
Top bell-housing which contains 4 welding heads, bottom tank and bridge plates.
3 Lifting System
The lower mould can be displaced upwardly by a pneumatic system.
4 Film Feeding
A dancing arm system ensures the film tension control. A servo-driven pinch roller drives the film.
5 Film Waste Rewinder
The skeleton of lidding material is re-wound onto a servo-driven mandrel.
Flight bar drive system:
Trays are displaced over the entire length of the
machine by a transport system provided with a
series of transverse push bars which are equidistantly
mounted between two lateral driving chains.
Wooden case packaging and shipment: