Feeder refers to the machine used to transport materials.
It is common in the automation, numerical control and precise conveying of pellets, powders, flakes, strips and other materials.
It is an indispensable transmission equipment for both light industry and heavy industry.
Traditionally, the feeder is a machine that uses the force of the machine motion to force the material to transport the material.
Modern feeders have undergone some changes, and advanced technologies such as high-pressure air and ultrasonic have begun to be used in feeding technology, but these devices are still classified in the feeder-type equipment.
The highly automated feeding equipment includes computer-controlled moving head feeder, laser feeding feeder, high pressure air pressure, and computer feeding feeder.
In addition, the foreign company produces a projection feeder.
The device is equipped with a sensor and a sighting device for scanning the contour of the material or projecting in the material row to guide the feeding arrangement.
- Belt feeder
The general structure of the belt feeder is mainly composed of conveyor belt, drum, supporting device, driving device, tensioning device, discharging device, cleaning device and frame.
The belt feeder is a continuous feeding machine.
It uses a conveyor belt that surrounds the front and rear rollers as a traction and load-bearing member. The drive roller drives the conveyor belt to move by friction and runs together with the animal material to achieve the purpose of conveying materials.
- Buried scraper feeder
The buried scraper feeder is composed of a closed casing, a scraper chain, a driving device and a tensioning device.
When the buried scraper feeder is working, the material enters the carrying section of the casing through the feeding port then the buried scraper feeder move forward together with the squeegee chain under the thrust, and discharged by itself after reaching the discharge port. The scraper chain returns along the empty section of the casing.
Because the scraper chain is buried in the material and moves forward together with the material during work, it is called “buried scraper feeder”.
- Bucket feeder
The bucket feeder is mainly composed of traction member (rubber belt or chain), bearing member (hopper), head wheel and bottom wheel, driving device, tensioning device, casing.
A closed traction member surrounds the head and bottom wheels and is tensioned by the tensioning device.
A hopper is installed at a certain distance over the entire length of the traction member.
In order to prevent material from spreading and dust flying, these moving parts are closed by the casing.
In operation, the external drive drives the traction member and the hopper through the head wheel.
The material enters the bottom of the base from the inlet of the base and is picked up by the moving hopper and lifted upwards.
After reaching the machine head, the material is separated from the hopper by gravity and centrifugal force and discharged from the discharge port.
- Screw feeder
The screw feeder is mainly composed of a spiral body composed of trough, spiral blade and rotating shaft, two end bearings, intermediate suspension bearing and driving device.
When the spiral rotates, the material entering the slot is subjected to the normal thrust of the rotating blades.
The radial component of the thrust and the friction of the blade against the material will cause the material to rotate around the axis.
The gravity of the material and the friction of the machine groove against the material prevent the material from rotating around the axis.
When the axial component of the helical blade against the normal thrust of the material overcomes the frictional force of the groove to the material and the radial component of the normal thrust, the material does not rotate with the spiral and only moves forward along the trough.
- Vibrating feeder
The vibrating feeder is mainly composed of conveying trough, vibration exciter, main vibrating spring, guiding rod, vibration isolating spring, balance chassis, feeding device and discharging device.
Vibratory feeders use some form of exciter to cause the tank to vibrate in an oblique direction to transport material from one location to another.
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