Hopper Feeder

The hopper feeder sits at the head of the carding line. Its job is simple to state and hard to do well: keep a steady, uniform supply of fiber moving to the next machine while doing most of the leveling and blending on its own. Doing that automatically cuts the manual handling that otherwise slows a high-volume line down.

Opened fiber is loaded into the upper storage box, then carried downward by a spike lattice or conveyor. A feed roller lightly compresses the stock while cylinder pins or a spiked apron open it further, so what leaves the machine is a loose, even layer rather than clumps. A vibrating chute or room evens out the density on the way to the carding machine.

For dosing, you can specify an automated measuring type that uses load cells to track transferred weight and a servo motor to top up to target, or a scale box type that accumulates set batches before releasing them onto the conveyor. Both keep batch-to-batch weight consistent; the vibrating chute lets you fine-tune pad density and thickness by wall distance or vibration amplitude.

The feeder handles virgin, blended and recycled stock, and works with both natural and synthetic fibers. It is the same machine the industry calls a vibrating, weighing, automatic or pre-feeder depending on how it is configured.