Extraction of Oil Smoke from various Multiple Die Presses in the Screw Industry0 pages

Problem:
Using its multiple die presses in production
sites all over the world, an SME manufactures
several billion (!) screws for the automobile
industry.

As a result, the oil evaporates abruptly from
the workpiece, which is on the surface of the
screw blank as an anticorrosive or to support
the formation process.

Machine types such as Nedschroef 520 EL and
National Machinery PAK18 insert a lot of energy into the relatively small “screw” unit at the
moment of metal formation, which leads to
high surface temperatures in the short term.

This leads to a high concentration of oil
mist in the exhaust air within the multiple
die press or its casing, which is damaging to
health and the environment.

Screw Manufacturing
Screws are indispensible as removable
connections in the world of technology and
are needed in immense quantities. The most
conventional manufacturing type is nonmachining cold processing, during which
defined distortions, such as the head and
thread, are moulded using high forces. The
advantages are that the procedure takes
place without any loss of material, the fibre
structure is not disturbed and cold working is
a positive side effect.
The high quantities needed are manufactured using multiple die presses in a technically modern manner. These multiple die
presses can perform several work steps
and/or produce several pieces per cycle and
are supplemented by delivery and removal
systems.

In addition, it is frequently forgotten that
the oil on screws, which are manufactured in
short cycles, evaporates subsequently in the
collection container, which also leads to high
concentrations of oil mist.

Solution:
For this task, UAS has developed a solution,
which takes several aspects into consideration.
In order to achieve a high filtration efficiency
for oil mist particles (<0.5µm), innovative
electrostatic filter technology is used, which
extracts the exhaust air from both the
primary workspace and the collection area
for the finished components.
In terms of energy, it is particularly interesting
that the engine performance of the ventilator
is just 5.5kW, i.e. half of the output needed
for mechanical filtration systems!

Extraction of Oil Mist from various Progressive Presses
in the Screw Industry

Extraction of Oil Smoke from
various Multiple Die Presses
in the Screw Industry