Incorrect feeding leads to clamping die and irregular parts
“My feeder was causing long downtime and low productivity on my presses,” said David, one of our clients in the EU.
David said that the older feeders in her factory did not have the adjustability to provide feeding accuracy.” They required mechanical adjustments, and the gap was too large, so we couldn’t do it when we tried to make fine adjustments. “
“This causes a lot of die jams,” he continued. “We spend 20-30 minutes to dig steel out of the die. The results are irregular parts.”
David found us and wants to get professional solutions from HE-machine.
Firstly, we told David that to confirm the suitable machine configuration, and we need to know the below info:
1. Material details: such as thickness, width, weight, and so on.
2. Press information: including press type, speed, and tonnages.
3. Stamping tool specifications: final products drawing
David also required that the new system had to be easy for operators to use, adjust and understand.” It had to be good for the operators. We didn’t want to have extra training.”
A Nice Match
HE-machine finally chose to recommend the GL+RNC precision press feed system with decoiler straightener and servo feeder unit. He said that the new feeding device is suitable for the thickness range they needed. “The material we are mainly involved in is not that thick, and this machine, with the capacity that we chose–0.3-3.2mm.—was a nice match for the variety of stock that we were dealing with.”
The high-performance leveling system adopts a pneumatic rod pressing and release system on upper rollers.
Straightening pressure is adjusted by the turbine worm handwheel, which helps to simplify roll adjustment.
The servo roll feeder with a high concentric mechanical structure and precision pasts, combined servo control system, achieves a precision feeding of +/- 0.1mm. “We’re now doing some in-mold sensing, whereas we used to hit mechanical stops. Now we can sense the position and make sure that we have reached the required feed length.”
Less Downtime, More Uptime
After running, David reported that downtime was reduced and the machine was no longer stuck. In addition, the new feeding equipment and control make the operation easier and reduce the setting time.
“When we change the mold, the operator only needs to load it on the press, call up the part number, and then start running. It saves all the information from the last run.”
Not to mention part quality, he happy to said, “I’ve measured hundreds of parts, and the tolerance can easily within 0.1mm. We’ve greatly reduced the scrap rate!”