Case Study
02
· The paper bags filled with flour are handed over to the infeed conveyor in an upright position with the narrow side first
· A product diverter ensures that the bags are fed in the desired formation to the stretch-banding machine
Version 1 - Formation (2 x 5 x 1)
The products are formed in two rows on the grouping table by means of a cross pusher
Reliable pre-grouping is ensured by a counterholder
The counterholder also acts as a feed. Once the formation is complete, it is positioned in front of the main infeed
The main infeed pushes the formation into the film curtain, which is formed from the top and bottom film
Version 2 – Formation (2 x 2 x 1)
The products are fed in a 90° curve so that they are positioned with the wide side in front of the main infeed
The main infeed positions the first row on the grouping table
With the next feed movement, it pushes the finished formation into the film curtain, composed of upper and lower film
Servomotor-driven stretching units dispense the film under program control
The top and bottom film are sealed by means of a sealing bar and then separated by a separating knife
The film stretching technology creates a firm pack. The pack secured by the
resulting film band is conveyed to the next station
Here, the film overhang is shrunk using hot air blowers
The finished pack is fed to the downstream systems
Via a product diverter, the products can either be fed to the stretch bander or directly to a palletizer via a bypass. The diverter is adjusted manually - position is monitored via sensors
All horizontal and vertical movements are servomotor-driven
Cross push-off, counter-holder and main infeed driven by servo motors
Conveyor belt speed infinitely adjustable
Tightly packed packs achieved through servomotor-controlled film dispensing
All format-dependent parameters achieved through in the recipe
Up to 75% film savings
Lower power consumption
Protection class minimum IP 54
Control system: Siemens or Allen Bradley
Integration of a printer/labeler in the infeed/outfeed
Stainless steel design
Automatic film sealing device
Function without film
Motorized format adjustment
Tear-open perforation; crosswise
Automatic format part recognition
Up to 75 % film savings
Lower power consumption
02
| Product | Product dimensions (LxWxH) in mm | Formation | Container dimensions (LxWxH) in mm | Power (max.) |
|---|---|---|---|---|
| 1000 g | approx. 95 x 80 x 150–190 mm* | 2 x 5 x 1 | approx. 400 x 200 x 150–190 mm* | 100 bags/min. |
| 1000 g | approx. 95 x 80 x 150–190 mm* | 2 x 2 x 1 | approx. 200 x 160 x 150–190 mm* | 80 bags/min. |
Due to the filling material, the product height may change in the process.
Note: The dimensions l x w are the basic bag formats. Corresponding bulges that occur after filling have not been taken into account.
This can be up to 10%.
Formation 2 x 5 x 1
Film quality:
LDPE, 15 - 50 μm
Optionally, the individual packs can be fed to the palletizer via a bypass.
The transfer takes place with the narrow side (l x w) in front.
