ISMR October 2021 | Page 65

FOCUS ON SURFACE FINISHING

Left : A schematic of the Q2S1200 turnaround unit .
Below : The Q-Fin deburring equipment at Willems .
By rounding the edges to a radius R1 , the paint flows nicely and evenly over the entire sheet metal part
installation that are exposed to the open air are , in any case , given a powder coating . By rounding the edges to a radius R1 , the paint flows nicely and evenly over the entire sheet metal part . This ensures good adhesion , even at the edges , and prevents peeling and rust ,” Willems told ISMR .
The search for a solution
Willems already had a deburring machine for deburring and rounding off the large sheet metal parts , which processed the material on one side . Since the sheet metal parts had to be processed on both sides , the material had to be fed through the machine twice and turned in-between . This was done by hand or using an overhead crane , which took a lot of time and was strenuous work for the operators . It was also not one hundred per cent safe .
“ A crane can slip through the brake and that is dangerous ,” said Bram Willems .
Willems therefore found an alternative solution for processing steel , stainless steel and aluminium parts at Q-Fin Quality Finishing
Machines in neighbouring Bergeijk . He was searching for a machine that could process both sides of a part as well as deburr and round-off both sides in one go . However , this concept did not fit Q-Fin ’ s philosophy , as Q-Fin account manager Patrick van Scherpenseel explained .
“ We like to do things differently . We differentiate ourselves by incorporating the right ratio of power , abrasive and speed into our machines . We call this essential combination ‘ GrindingPower ’ and , with it , we achieve the highest output and consistently high quality . This is our starting point and we did not want to dilute it by making concessions ,” he explained .
“ However , in a double-sided working machine , you do have to make these concessions . For example , you cannot push as hard with the brushes when working on the product from top and bottom . We therefore looked for a solution that added something to our machines , so that we can still work on both sides of a part in one pass without human intervention . That solution has become the Q2S turnaround unit .”
The deburring process
The reversing station is available for twosided finishing of sheet metal parts up to 600mm , resp . 1200mm and 1500mm wide . The Q2S turnaround station provides batchwise double-sided finishing at high throughput speeds . The system can be controlled by just one operator . The Q2S1200 turnaround unit is now part of the deburring line at Willems . It is positioned between two F1200 deburring machines .
The operator loads the 3m-long and 1200mm-wide table in front of the first machine . He / she enters the correct settings on the control panel on the front machine , which allows him to control the entire system . Sheet metal parts pass through the first deburring machine and are deburred and edge-rounded on one side . They come out the back of the machine and are conveyed straight into the
ISMR October 2021 | sheetmetalplus . com | 65