SOLD Siapi EA1S

The SIAPI machine mod. EA1S produces PET bottles cavities by a stretch-blowing two-stage process.

It is intended for productions of containers with a capacity that ranges from 10 to 30 l (3 to 8 us gal). It is possible to go from one type of container to another by simply replacing the mould, adjusting the stretching rods, and recalling the specific program, without any other field regulation. 

It is a monobloc machine, with an electric-welded steel frame. It is electrically driven, and a PC controls it. The low part of the machine is entirely enveloped in sheet panels lined with sound proofing material; transparent panels enclose the upper part.

Preforms are loaded by an automatic device on a disposal called “preform carrier”, from which they will be unloaded once they have become finished bottles.

The preform-carriers proceed on a closed-loop by an intermittent motion in the loading, unloading, and blowing sections, and at constant speed in the heating section.

During the whole process, the bottle is always with its neck up.

The heating takes place by irradiation in ventilated ovens, the ventilation is programmable in order to optimise the absorption.

 Production data:

Number of mould cavities: 1

Maximum container diameter: 340 mm

Maximum container height: 570 mm

Maximum container neck diameter: 85 mm

Maximum container capacity: 5- 30 liters

Max nominal output for 6 l bottle: 700 BPH

Efficiency: 85%

 Electricity supply:

Voltage : 400 V

Frequency: 50  HZ

Total installed power: 92 kW

Installed power for motors:  28 kW

Voltage tolerance admitted: +/- 5%

Frequency tolerance admitted: +/- 1%

Auxiliary power supply: 24 V DC

Distribution: 3PH + PE

Power factor: 0.9 Cos j

 Cooling system:

Water input temperature: 10ºC

Water input pressure: 3 bar

Flow rate: 80 l/min

Cooling capacity: 18.000 kcal/h

 Service air:

Nominal pressure: 6 bar

Typical rate: 120 Nm³/h

Filtration (filter): 0.5 Micron

Humidity: dehumidified

 Blowing air:

Nominal pressure: 38  bar

Air rate: 470 (30l@300b/h) Nm³/h

Filtration (filter): 0.01 Micron

Humidity: dehumidified

Oil: oil free

 Heating:

Installed power: 4 kW

Heater units: 2

Lamps per unit: 16

 Absorption:

Absorption power: 30-45 kW

 Environmental conditions:

Ambient temperature: 10-40ºC

Ambient humidity (without condensation): 5-90%

Maximum altitude: 1000 m.a.s.l.

 Dimension:

Length: 3000 mm

Width: 2100 mm

Height: 3550 mm

Mass: 6000 kg

 Connections

Service air connection (6 bar): 1” inches

Blower air connection (40 bar): 1-1/2” inches

Water connections: 1” inches

 Feeder:

Length: 1200 mm

Width: 620 mm

Height: 2200 mm

 Elevator:

Length: 2980 mm

Width: 1300 mm

Height: 2480 mm

 DESCRIPTION BY OPERATIONAL UNITS

Bedplates

They are made of strong electro welded steel structure, and their frame consists mainly of square section pipes and heavy-thickened plates. The whole thing forms a monolithic body, which is worked at the machine tool after its welding and its eventual normalisation. The bedplates lay on the floor by means of self-aligning, antivibrating, and adjustable supports in order to adapt them to possible unevenness.

Elevator and automatic distributor

It is mechanically independent and it has its own frame.

It consists of a hopper, a band, and an automatic distributor. It brings the preforms from the ergonomic loading level to that of automatic distributor and it puts them in a little robotics hand side, which can rotate the preform in order to present to the inserting guides the side of the neck.

The hopper is lined with food-polyethylene sheets. The automatic distributor controls the hopper’s functioning by means of photoelectric cells, which register the emptying of the loading tracks.

Preform carrier

The whole driving mechanism of the preforms and the bottles is based on this disposal.

It is a discoid pallet with a hole in its centre through which the neck of the preform is introduced and hooked to stainless steel jaws.

Loading

In this section, the preforms are ranged at the end of the track and are inserted into the preform-carrier.

The parts touching the preforms are made of anodised aluminium-alloy; otherwise, they are made of stainless steel.

Transport

Preform carriers slide on treated-steel guides following a straight-line that curves at the two ends of the machine. In the heating section, the preforms rotate as well, so they can be evenly exposed to the irradiation. There is also find a carrier cooling system under the guides. In the blowing section, pneumatic pistons singly move the preform carriers.

Heating

The heating process takes place in ventilated stainless-steel ovens comprising adjustable supports for the lamps and for the rapid electrical connections. Each lamp is assembled on its own adjustable support. The power delivered by each line of lamps is independently adjustable, so it is possible to optimise the preform’s thermals profile.

The total power can be varied without altering its percentile distribution.

At the heating section’s exit, there is a reader for the preform’s temperature, which is active whenever the loop temperature control is selected.

Mould and connected part

The single-impression mould it is made of aluminium alloy with steel inserts; it has a movable steel bottom. The mould open and close by means of a gripping toggle, driven by a system with a brushless motor.

Blowstretching group

The stretching is carried on by a system based on a toothed guide, driven by a brushless motor.

The medium and high-pressure valves are electrically controlled and have a stainless steel shutter. The discharged air is filtered and silenced.

Unloading

The finished bottles remain hooked to the preform carrier until they are drawn from the mould and expelled by means of a pneumatic slide, onto a band transport system.

Control unit

It is based on an innovative PLC, with a LCD monitor and an industrial keyboard.

The control unit allows a clear, powerful, and multi-language human interface.

Its main functions are:

-       creation, modification, and recall of the different work programs and of relative options.

-       visualisation of the machine conditions, with a constant indication of the real production rate, of the programmed heating percentage, and of all relevant parameters.

-       numerical visualisation of the power distribution.

-       visualization and memorisation of the diagnostic messages.

Telematic service

The machine is prearranged for the telemetric service, through which the SIAPI experts can help the customer in case any functioning problem should occur. 

The PLC is equipped with a transfer card that must be connected with the issued modem.

Pneumatic system

It was built with standardised components, which can be easily changed.

It is provided with manual controlled – light state signalling electro-valves, cylinders with magnetic limit switches with led and transparent, numbered pipes.

Ventilation system

It consists of centrifugal metallic fans, some of which are controlled by inverters; the ducts are made of zinc-plated steel and aluminium

Protections

Protections envelop the whole machine. The low part of the machine is entirely enveloped in sheet panels lined with soundproofing material; transparent panels enclose the upper part. All the doors are protected by circuit breaker.

The transparent parts allow a constant and safe control of the machine functioning.

Safety

The machine is designed and built to Machine Directive 89/392/CEE and later amendments, and is therefore provided with solutions and devices designed to guarantee safety. It has the CE mark and for EU countries comes with the prescribed Declaration of Conformity.

SOLD