VUSM Paper Bottom Sealers
Overview
On the paper bottom sealing machine, filled or unfilled composite cans are sealed and closed with a bottom made of composite paper or cardboard by means of a heat contact process.
Both round and non-round formats can be processed!
Design and Function
fully automatic, continuously operating closing machine in rotary turret design
Feeding of the can bodies
- feeding the filled cans or unfilled can bodies to the machine on a horizontal conveyor belt (optional)
- separating the cans by means of a driven stop star
- acceleration of the cans by means of an infeed worm
- transfer of the cans to the sealing stations by a transfer star wheel
Feeding of the paper bottoms
- inserting the prefabricated paper bottoms
- into the bottom magazine or
- onto a long stacking conveyor (optional) for long charging cycles
- gentle extraction of the cardboard bottom from the magazine by means of vacuum
- overhanding the paper bottom to the sealing turret
Heat-sealing process
- exact positioning of the paper bottoms in each sealing station in a form ring
- calibrating the can bodies by means of the form ring
- precise orientation to the paper bottoms
- correction of slight deformations of the can body
- controlled lifting of the bottom and can body into the sealing tool
- heat-sealing of paper bottom with can body
- by inner and outer heated sealing tools
- utilizing robust and easy-to-use heat contact technology
- with adjustable and monitored temperature
- long sealing times (up to 1.65 s) thanks to turret principle
Process control (optional)
- no sealing operation when can or bottom is missing
- avoidance of contamination
- overheat protection during sealing
- automatic pneumatic ejection system for faulty cans
- integrated camera / vision inspection
Format Change
quick change to other can formats using
- fully automatic height adjustment without change parts
- very good and easy access to the tooling area
- short changeover time for preset sealing heads with quick change mechanism
Technical Data
| PAPER BOTTOM SEALER | VUSM2 160/3 | VUSM2 160/4 | VUSM2 160/6 | VUSM2 160/8 | VUSM 160/12 | VUSM2 160/16 | ||
|---|---|---|---|---|---|---|---|---|
| max. output [cpm] | 60 | 80 | 120 | 160 | 240 | 400 | ||
| no. of sealing heads | 3 | 4 | 6 | 8 | 12 | 16 | ||
| no. of bottom magazines | 1 | 1 | 1 | 1 | 2 | 3 | ||
| can diameter [mm] | Ø 65…160 | Ø 65…99 | ||||||
| can diagonal (unrund) | on demand | |||||||
| can height [mm] | (60) 80…250 | |||||||
material specification (can) | composite paper, with or without label 0.7…1.0 mm | |||||||
| material speci-fication (bottom) | sealable composite cardboard | |||||||
| pneumatic connection | 6 bar | |||||||
Please note that the technical data provided in this table is to be understood as typical or maximum data but not as a property guarantee. The maximum values depend strongly on product specification (material, dimensions, tolerances etc.) and technologies employed. The final technical data for the application will be assessed after review of product specifications.
