Constructive
description
04/2015
S.
26
5.
Constructive
description
In
the
following
chapter
the
machine
is
described
constructively.
The
basic
design
consists
of
a
steel
structure.
For
reasons
of
clarity
protective
covers
are
not
shown
in
all
cases.
5.1.
General
The
machine
is
designed
to
compress
large
volumes
of
material,
which
is
fed
via
the
feed
chute,
and
then
bound
into
bales.
The
machine
is
controlled
by
a
programmable
logic
controller
(PLC).
The
materials
are
compacted
by
a
press
body
which
is
moved
inside
the
press
channel
by
means
of
two
hydraulic
cylinders.
A
hydraulic
channel
adjustment
at
the
end
of
the
press
channel
(manually
or
hydraulically)
ensures
a
counter
pressure.
Finally,
the
compacted
material
is
automatically
tied
into
a
bale.
The
bales
are
held
together
by
3
or
4
wires.
5.1.1.
Press
unit:
The
machine
works
on
the
material
cutting
off
system.
When
the
press
body
moves
forwards
the
material
above
the
cutting
level
is
pressed
into
the
press
chamber
by
the
knife
[1]
and
the
counter
knife
[2]
(see
fig.
21)
and
the
press
body.
As
a
result
of
the
shearing
a
pressure
build
up
on
the
upper
side
of
the
press
body
is
prevented,
whereby
excessive
wear
on
the
polyamide
guides
can
be
avoided.
Hydraulic
pump
Directional
valves
Knotting
device
Channel
cylinder
Top
wire
Bottom
wire
Bales
in
channel
channel
adjustment
Press
filler
chute
beginning
knot
Knotting
device
hood
final
knot