Blank separation, turning, centring and marking where applicable – all of these are functions that Strothmann blank loaders perform reliably, even in highly demanding 24/7 operation. Up to 6 blanks can be processed simultaneously. From low-cost blank frames to fully automated solutions: Strothmann has the perfect solution for practically all requirements.
Depending on the customer’s requirements, Strothmann can provide practically any solution from simple frames to fully automated blank carriages. In the simplest case, the blank stacks are deposited on a frame directly or by means of pallets and are destacked from this frame. Blank carriages which move out of the destacking station and permit loading by crane or forklift truck are more convenient. Spreading devices can also be attached to the blank carriage.
Blanks are spread by magnets. In the simplest case, magnets with a clamp base are manually positioned on the pallet or the table. Alternatively, we also offer pantograph arms with fixed or movable magnets, which are mounted on the blank carriage. Automatically advancing magnets are optionally available.
The marking station can be equipped with a pneumatic or hydraulic drive. Its modular design permits the use of any number of marking heads, depending on the number of blanks per batch. If necessary, additional heads can be added at a later point. This permits simultaneous marking of all blanks. Since marking heads can also be arranged opposite one another, both blank ends can be marked without rotation of the workpieces, thus significantly reducing processing time. The spacing between the heads in the lengthwise and crosswise direction can be adjusted manually or automatically. This permits quick and simple adjustment of the heads for different batch configurations. It also reduces the cycle time. All heads move on the pre-tensioned linear guides, which is crucial for accurate marking.
The destacking feeder has the same design as the feeder series for loading and unloading the press. The feeder can optionally be equipped with an additional vertical rotational axis. The tooling change is performed either manually or automatically by means of a drawer or turning device.
Compared with conventional centring stations using pneumatic centring fingers, the STROTHMANN servo centring station has significant advantages. Each centring finger is positioned on a separate linear unit with its own servo drive, which can be shifted manually in the throughfeed direction. This ensures that each finger reaches the desired end position during centring. Moreover, moving the fingers against the blank allows for extremely quick teaching of new batches and it is possible to set offset values immediately and conveniently by entering them in the control system. Reject blanks are automatically discarded. Rapid manual adjustment or optional automatic adjustment of workpiece-specific stops is possible.