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 (Hyper-clean 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:
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.
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.
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.
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.
