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Products and Services
» HT800-06-AA
Horizontal Thermoformers
The HT800-06-AA Series Horizontal
FormingMachine is designed to meet the needs of
theGeneral Vacuum Forming Industryacross all majorthermoforming
applications. With automatic sheetload and product
remove facilities integrated withmany unique features,
it provides a highly versatileand efficient production
platform.
All moulds datum to the front left corner of the
machine, so it is easy for the operator to view
and monitor theforming process. The heaters (4)
are mounted in two banks, top & bottom for
dual sided heating. A pyrometeris fitted to the
machine to monitor the actual sheet temperature
during the heating process (a secondpyrometer
monitors the product temperature during cooling).
The sheet is loaded by the automatic sheetloader
(6) and is prevented from sagging
under gravity during the heating process by compressed
air that isinjected into the pressure cabinet
(1). When the sheet has reached
it’sforming temperature the heaters switchoff
& retract to the standby position (8).
The mould enters the sheet by means of the hydraulically
operatedtable (if required the plastic can be
pre-stretched to form a bubble by means of compressed
air). The mouldenters the plastic sheet and the
vacuum is automatically applied. The cooling fans
(7) are mounted on thefront frame
of the machine, and also on the leading edge of
the sheet loader. When the cooling cycle iscompleted
the clamps open and the automatic product remove
then lifts and stacks the product. Operatorsafety
is provided by light guards (9).
The Armour clamping bars have been specially designed
for ease of set-up and fast tool changes. Each
clamping bar is comprised of two high precision
aluminium extrusions, a fixed bar (1)
and a hinging clamping bar (2),
which is actuated via a series of pneumatic cylinders
(3). The size of the forming
aperture can be varied by moving the main sliding
bar (4) and the adjustable bar
(5). Both of these are mounted
on linear guides (6), and slide
on high precision rails (7),
and are locked in position with a locking handle
(8). The forming length is infinitely
adjustable along the slide. The forming width
requires loose pieces to make up any gap (9)
between the two adjustable bars. These can be
easily fitted and are bolted in place using a
steel brace. The aperture is sealed with the unique
Armour sliding closing plates (10 &
(11). The larger plate (10)
is fixed to the main sliding bar and moves with
it, covering the full width of the aperture, and
(11) is made to suit the size
of the mould. These plates can be made of high
temperature plywood or aluminium. They seal automatically
when the machine is operational by means of inflatable
silicon seals that are fitted into the clamping
bars.
 It
is critical to the forming process that the progression
of the mould into the sheet is smooth and controlled.
Armour mould tables run on precision linear guides
and rails, and are driven with hydraulic cylinders
through large rack and pinion drive gears. Each
machine is supplied with a self-contained hydraulic
power pack incorporating an electrically driven
hydraulic pump and oil reservoir, with solenoid
valves controlling the cylinder movement. Variable
table speed systems are also available as an option.
 The
top and bottom heater banks consist of a series
of quartz infrared heating elements that are individually
adjustable to allow complex heating patterns to
be used. These heaters have a rapid response time
and therefore energy is saved between cycles when
the heaters switch off. The level of the acrylic
sheet is maintained during the heating process
by compressed air. The bottom heater bank is protected
by ceramic glass.
 Armour
control systems use a Mitsubishi PLC to control
the sequencing of the machine, and have a Proface
touch screen as the user interface. Up to
1000 programs can be created and are stored on
a Compact Flash card, allowing easy backup. Reporting
facilities are available and .csv files can be
exported for offline production analysis. The
system is fitted with a modem to allow remote
access by Armour Engineers for diagnostic checks
and software upgrades. All machine software is
written by Armour and therefore new versions and
additional features can be developed.
Download the Specification table
below:
Download
Horizontal Thermoformer Specification
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