The Problem

The box stacker for press discharge does not require much space and is positioned next to the press. The operational controls for both machines are easily assessible at all times.A screw manufacturer had to increase the production output at one of his presses without committing additional staff. An obvious solution to this problem was to introduce ghost-shift operation for this machine as there were no night shifts in this department.

Although the machine could be supplied with sufficient wire for the night, discharge from the press posed a problem because up to 20 boxes with raw screws may be produced during one ghost shift.

The Solution

Discharge end for material transport with closing flap ensuring buffer function.A box stacker holding the transport boxes was positioned next to the press. This device takes a box from the stack of empty boxes and places it onto a carriage. This carriage travels below the press discharge shaft where it is filled.
When the target number of screws has been filled, the box travels back to the stacker where it is placed onto a stack for filled boxes.

The press discharge unit is automatically closed by a flap and can thus be used as a buffer storage unit during the time of box exchange.

Additional options provided by this system

Charge and discharge area for in-house boxes.Storage capacities can be increased by changing the length and/or stacking height. It is also possible to use larger boxes, even stacking containers. In addition, the WMV system is capable of handling more than one press.
The quasi-continuous WMV de-oiling centrifuge Conti-Cent can also be integrated into the discharge cycle.