Electronic fillers

HEMF series (oil)

HEMF - Electronic mass filling system

The thirty-year experience of Enoberg (company part of the SMI Group) in the manufacturing of fillers and the growing market demand in terms of hygiene, reliability, simplicity of machine maintenance and use have led the company to manufacture the new HEMF range (Hyperclean Electronic Mass-meter filling systems for Flat products).
The electronic filling system is based on the use of a massive flow meter for each filling valve. The flow meter detects the flow of the product that fills each bottle; once the correct volume is reached, the flow meter controls the closing of the filling valve.

The products that can be worked by HEMF fillers are:

  • not electrically conductive products, especially oil

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1Empty bottles transfer
After being manufactured by the stretch-blow moulding machine, empty bottles are conveyed from the blower to the filler by "neck-handling" direct transfer by menas of adjoining star wheels. The star-wheel at the blowmoulder outlet is equipped with grippers electronically synchronised with the brackets of the starwheel at the filler inlet.


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2Filling
Once the filling station is reached, a gripper grabs the bottle by the neck and places it under the filling valve. The product to be filled is positioned in an external manifold, from which, through a specific pump, it is conveyed to the filling valve. The filling is massive, electronic with mass flow meters based on Coriolis principle and placed upstream of each filling valve. During the filling process, the flow meter detects the amount of product that goes through the valve. The measurement is based on pulses, that are compared to the ones set for the format in use. When the set value is reached, the closure sign is sent to the filling valve. At this stage the filled bottle is transferred to the capper.


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3Capping
A shaped star wheel allows to center the bottle under its capping station. The cap coming from the feeding system is picked by a transfer star wheel called “pick and place”. The capping head picks the cap from the star wheels and applies it to the bottle. According to the cap to be applied (plastic screw cap or pressure cap), the capping system can operate by rotation or pressure. The filled and capped bottle is transferred to the outfeed conveyor.


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4Outfeed conveyor
The filled and capped bottles are transferred to a chain conveyor that conveys the bottles outside the machine. This conveyor is equipped with an automatic height adjusting system, that allows to adjust the bottle base according to the bottle height.


  • Frame made of AISI 304 stainless steel
  • Tempered glass safety guards and sealing gaskets that hermetically seal the filling environment from the external one
  • The motion of the machine carousels is driven by robust gears placed in the machine base
  • The filling section is completely isolated from transmissions, that therefore do not come in contact with the liquid to be filled
  • Filling valve fully made of AISI 316 and characterized by an easy maintenance
  • High-precision flow meters installed next to the filling valves
  • Dummy bottles with a manual insertion to ensure a complete cleaning and sanitation of the components in contact with the product (dummy bottles with an automatic insertion are available on request)
  • Product pump that allows to keep the pressure constant during the filling operation
  • Quick format changeover of the bottle guide equipment
  • Parameters of each format directly controlled through HMI
  • 7'' HMI touch screen (15'' available as an option)

 

Maximum filling precision

The filling process is extremely precise, thanks to the use of the flow meter, an electronic device installed near each valve that detects the flow of the product that fills each bottle by counting the pulses and sends the filling valve the closure sign, once the value of the format in use is reached.

High-precision mass flow meter

The high-precision mass flow meter (flow meter that uses the Coriolis effect in order to determine the exact amount of product at each passage), installed next to the filling valves., allows to get a quick measure with a greater repeatability. The flow meters are characterized by a high stability, with less need for calibration. During the measurement, the impact of the environmental conditions (mechanical vibrations, shaking, sprays, etc) is minimal. Moreover, there is no volume limit (the container size is not limited by the range of load cells). The control of the filling valve and the automatic compensation is performed through PLC.

Simplified filling valve with reduced maintenance costs

Simplified filling valve with a reduced number of gaskets with a significant reduction in costs and times for maintenance operations.

No drop filling valve

HEMF series is equipped with a special no drop filling valve for filling oil in PET containers, with specific anti-drip function at the end of the filling process.

Efficient control of two filling speeds

The valve allows to control two filling speeds in order to fill homogeneously and efficiently, with no product leakage from the container. The duration of the filling cycles (slow or fast) can be controlled easily and intuitively through the recipes inside the man-machine interface (HMI Posyc®).

* Data provided on this page are not binding, as they have to be confirmed by SMI according to the machine user's production conditions and technical specifications.