The NC servo feeder is precisely fed by the servo motor through the
synchronous pulley drive feed roller, and the relaxation signal
provided by the punch cam is quickly relaxed by the cylinder to
eliminate the accumulated error.
It is the feeder with the highest feeding accuracy. The feeding
accuracy is usually ±0.02mm, and the operation is fully automated.
The feeding step and feeding speed setting can be easily completed
by touch-screen point-controlled operation, so it is gradually
replaced. The air feeder and roller feeder have become the most
mainstream feeding equipment in the stamping industry.
The unstable transmission distance of the NC servo feeder is also
called infeed, which will greatly affect the quality of the
finished stamping. However, there are many reasons for the unstable
transmission distance. Ruihui Machinery will explain here that the
operator can eliminate the inspection according to the instructions
when encountering this fault:
1. The NC servo feeder is set too fast. The
NC servo feeder is not capable of high-speed feeding due to the response time of
the electronic control system. Usually, the maximum feeding speed
of the pneumatic NC servo feeder is 60-120 times per minute (the
specific number varies depending on the material thickness and the
step size). difference).
2. The external air supply pressure is too large or not enough. The
NC servo feeder needs a stable air supply to achieve fast and
stable relaxation. The three-point combination pressure gauge needs
to be adjusted to 4.5kg/cm2. Treatment method: Check whether the
three-point combination pressure gauge is damaged and adjust the
compressor pressure.
3. The feeding height of the NC servo feeder is incorrect. Punch
often needs to be used with multiple sets of different molds. The
height of different molds can also be different. At this time, the
feeding height of the feeder should be adjusted after changing the
mold. If the adjustment is not correct, the feeding will be skewed
and uneven. : Adjust the feed height of the feeder to keep it
horizontal and vertical with the mold.
4. There is an error in the punching die itself or no material
trimming. If there is a problem in the design and production of the
punching die itself, the feeding distance will be unstable. At this
time, the NC servo feeder can be used for feeding, but the manual
manual feeding is used to test the product to confirm whether the
problem is on the mold itself. Modification can be done.
5. There is stamping oil on the feeding roller of NC servo feeder.
Stamping production In order to prevent the long-term friction
between the material and the mold, the die life is damaged and the
punching accuracy is not accurate. Usually, the material is stamped
with oil before the material enters the mold. If the punching oil
enters the feeding roller, the feeding slip will be inaccurate. At
this time, the feed roller can be cleaned and wiped.
6. The feeding time of the NC servo feeder is set incorrectly.
Different molds have different feeding time requirements for the
feeder. If the feeding time is set too late, the feeding will be
insufficient. At this time, the feeding signal cam angle of the
punching machine needs to be re-adjusted.
7. The NC servo feeder's relaxation time is incorrect. If the
relaxation time is not correct, the material feeding will not be in
place or the material will retreat. At this time, the angle of the
relaxation signal cam of the punching machine needs to be
re-adjusted.
