Support device on standard joinery machines to be able to feed workpieces with constant speed and large quantity to the respective processing tool.

The following machines can be upgraded with feeding devices:

• Surface planers
• Spindle moulders
• Manual edgebanders
• Bench saws
• Edge sanding machine
• and others

Construction

The basic corpus is formed by a gear box, onto which a motor is perpendicularly mounted. The top-acting rotation of the motor is transferred into a horizontally acting movement by the gears. This horizontally acting force is transferred to the drive shafts of the feed rollers via a chain on the other side of the box. Depending on the purpose, rubberized steel or aluminum rollers, corrugated steel rollers or belt discs, which drive a caterpillar band, are used as feed rollers. The number of feed rollers varies between 3, 4 or 6, depending on the model. Depending on the equipment, the feed rate can be changed by exchangeable gearwheels in the chain area or a gear shift lever.

Feeding devices are installed on the machine table using a tripod and can be tilted away when they are not used. They can be positioned in height and projection using manual wheels or servomotors.

Advantages of feeding devices

• Feeding devices increase the safety, especially for the hands of the operator, when processing small workpieces.
• They allow a continuous workflow for the production of workpieces in larger quantities.

Special equipment features

• Continuously variable adjustable feed rate, e.g. Maggi Variofeed
• mechanically controllable via conical washers belt drive
• electrically controllable via frequency converter
• Spring-suspended feed rollers for optimal adhesion even when they workpiece thickness differs

History

The feeding unit has been invented in 1951 by the company HOLZ-HER Reich Spezialmaschinen.

Further information: feed in resaws