Patent ID: 8627766
Filing Date: 2014-01-14
Classification: A01F

Abstract:
1. A square baler comprising: a pick-up configured for receiving crop material and transferring it toward a baling chamber; a pre-compression chamber to form a slice of crop material for a bale of the crop coming from the pick-up; the baling chamber for forming a rectangular bale of the slices of crop coming from the pre-compression chamber; a loading mechanism for transferring each slice of crop from the pre-compression chamber into the baling chamber; a plunger, movable within the baling chamber to compress further the individual slices to form a square bale; a first non-contact sensor is provided in at least one sidewall of the pre-compression chamber to produce an output signal indicative of the density of the crop; and at least one additional non-contact sensor located on a sidewall downstream of the first non-contact sensor, the sensors configured for measuring density at at least two different points along a crop flow path in the pre-compression chamber.