description

The machine was designed and developed to feed the fibres continuously to the following carding phase, while keeping the volume of fed material under control. The fibres in the volumetric chamber are compacted by means of vibrating walls. The fibres are homogenously fed to the volumetric chamber by a dosing roller.

technical data

  • Working width: 1500 to 4000 mm
  • Output: up to 1,000 Kg/h

process flow

01 horizontal feed conveyor

02 inclined spiked conveyor

03 fibre dosing roller

04 fibre discharging roller

05 volumetric chamber

06 vibrating walls

 

The material is dropped onto the conveyor (01) and intermittently forwarded towards the inclined spiked conveyor (02). The latter picks up the fibres and opens them by the dosing roller (03), by furtherly taking the fibres to the discharging roller (04). Before being discharged, the extra material is rejected by the dosing unit (03) and taken back to the conveyor (01), so that a steady fibre quantity is supplied to the following carding phase. The steady feeding quantity is guaranteed by the transition of the material through the volumetric chamber (05); the material will then be discharged on the feed belt of the card after being compacted by the vibrating walls (06).

 

available version

electronic hopper feeder mod. CRE

The machine was designed and developed in a way that guarantees the homogenous and constant fibres feed to the card, with consecutive fibre drops having almost no considerable weight variation. The fibres are homogenously dosed thanks to a dosing roller. The electronic weighing device being installed on the hopper feeder, combined with load cell micro-weighing system being assembled on the weighing pan, guarantees that the weight fluctuations are kept within 1% vs. to the set weight. PLC-controlled AC drive with inverter.

Process flow

01 dosing roller
02 inclined spiked conveyor
03 discharging roller
04 micro-weighing pan

The material in process is discharged into the micro-weighing pan (04) by means of the discharging roller (03) till the set weight value is reached. The weighing pan will then open, thanks to a compressed air cylinder and discharge the material onto the card feed belt, thus guaranteeing a steady fibre supply flow.

reference lines

To be installed on: