Blanking Line Solution...
The solution for press line from Siemens

CNC Design has strong engineering resources to support Siemens Motion Control Solution for Large Press and Blanking Line technology both for new machine building and retrofitting of existing line. Reference: Blanking Line Retrofit at Ford Australia

The heart of the automation solution is the SIMOTION system in the SIMOTION C230 variant, which has been developed especially for mechatronical automation solutions. SIMOTION combines control tasks and motion functions in a single system, allowing the user to optimize his/her automation system by linking the closed and open-loop control and positioning tasks previously implemented in several single devices now in a consis-tent software solution. With the compact blanking line, the take-up function of the coiler, the roller feed functions including the positioning and the control tasks are carried out by SIMOTION.

SIMOTION and PROFIBUS
The backbone of the solution is PROFIBUS. PROFIBUS is also used to connect the fast drives of the roller feed component, as well as of the feed axes of the straightening machine component (e.g. with the POSMO A positioning motor), the coiler drive (e.g. in frequency-controlled AC technology) and the distributed, digital inputs/outputs and the sensor system to SIMOTION. The OP 170B operator panel for local operation is connected to SIMOTION via PROFIBUS in the same way as the devices for startup and diagnosis. The data communication to the superimposed press control is also carried out via PROFIBUS. In addition, PROFIBUS constitutes the basis for "Distributed Safety", the distributed safety concept with PROFIBUS including the integrated ProfiSafe protocol to ensure safe data transfer.

Thus, the safety functions can be realized either centrally in the press control or distributed at the blanking line.

Low space requirements are the distinctive feature of a "compact blanking line". The central unit is the feed straightening machine, a combination of band insertion unit, straightening machine and roller feed. In the case of lower material weights, the coiler is coupled directly to the feed straightening machine. This will reduce the required space even more through omission of the loop pit. As an alternative, a loop cage will be provided when larger coils are used - an optimum of low space requirements and mechanical decoupling of uncoiling and straightening feed. The compact design of the blanking line will result in a more close coupling of the individual machine units and thus also in a new approach in the automation structure.