Automatic Transport System for Big-Bags up to a Weight of 1500 kg

In order to meet the requirement of being able to transport big bags even without pallets, a system was developed which make the transport as far as possible automatically.

For this purpose a technology from automotive production is used as an example. A cover-bound transport system has been combined with a big-bag pick-up and lifting device with automatic bag hooks.

Functional principle:

The individual vehicles operate largely autonomously after entering a driving target. Straight lines, curves, points and gate or slips can be realized. Several vehicles can be operated on the same roof rail. At the target, the big-bag is then set down fully automated (for example on a pallet). A weighing cell was integrated to check the lifting processes.

Since, the goal was an application especially in the food industry the entire vehicle was designed from stainless steel in hygienic design. The lifting device fulfills all safety regulations and is supplied by a well-known automotive supplier. Only in the case of the permissible lifting device stainless steel be could be used only partly.

The vehicles can be used both for the loading of big-bag emptying systems and for the transport to a big-bag filling station.

This technique is also well suited for the retrofit installation of hygienic sluices in big-bag filling or emptying systems, especially when the optimal solution (our Big-Bag-Revolver) is not to be accommodated spatially.

A direct transport to a central winder is also conceivable.

Conveying and Dosing of Various Bulk Materials

Screw conveyors are used to dispense or promote products horizontally up to approx. 7 m or vertically up to 3 m. Depending on the application area either tubular screw conveyors or trough screw conveyors are used. The advantage of the trough screw conveyors is that the trough covers can be opened in the case of cleaning.

In order to clean the troughs quickly, the trough covers can be optionally equipped with hinges and quick-release fasteners.

Screw conveyors can be used for almost all bulk materials in the food industry, chemicals and pharmacy. The screw diameters vary between 100 and 400 mm, depending on the conveyor length and delivery capacity.

Functional principle:

The bulk material is given into the conveyor through the inlet. There it is conveyed by the screw spirals to the outlet. In the case of dosing and weighing processes, the drive is generally controlled by a frequency converter in order to achieve a coarse and finest flow, which allows a weight-accurate dosing. In order to prevent product trickling at the outlet an optional pneumatically operated outlet flap can be installed.

Although the conveyor length as well as the number, dimension, and position of the inlets and outlets are manufactured according to the customer, we use standardized components such as bearings, shaft seals, drives, troughs and screw tubes.