Process for continuous wrapping an object and machine for carrying out the process
AssigneeDario Manuli S.p.A.
InventorDario Brambilla
Life of this patent
Estimating the term…
Abstract
In order to ensure an extended preservation term to a feeding product for animals, such as hay, straw and fodder, after harvest the product is compressed to form a cylindrically shaped body or object and then helically wrapped up with a web-like film of plastics material. To this end, the body or object is brought to bear on a series of drive rollers imparting thereto a rotary motion about its own axis, while from a reel or roll which is provided with a continuous rotary motion about said body or object the web like film is unwound. The cross-wrapping of the heap is advantageously completed by a peripheral supplementary wrapping of the heap.
Claims10
An apparatus for wrapping a compressed hay bale with an extensible self-adhesive film comprising a cradle, said cradle comprising means to support a cylindrical compressed hay bale, said cradle further comprising a multiplicity of at least three rollers distributed in a circular arc around a compressed cylindrical hay bale supported in said cradle, said rollers being located closely adjacent one another and comprising means to rotate a cylindrical hay bale about its axis while supported in said cradle, means for winding a strip of film about a bale while supported in said cradle, said winding means comprising a reel and means to move said reel in a path extending around said cradle and a bale supported in said cradle, carriage means supporting said cradle including a pair of wheels for transporting said carriage means, and means for tilting said cradle on said carriage means about a horizontal axis arranged parallel to the axes of said rollers for unloading a bale from said cradle motor traction means, a press connected to said motor traction means to be drawn thereby, said press comprising means to press hay into a cylindrical bale, means hooking said cradle to said press to be drawn thereby, said apparatus further including means to expel a cylindrical bale from said press and transport the expelled bale to said cradle.
An apparatus for wrapping a compressed bale with an extensible self-adhesive film comprising a cradle, said cradle comprising means to support a cylindrical compressed hay bale, said cradle further comprising at least three rollers distributed in the arc around a compressed cylindrical hay bale supported in said cradle, said rollers comprising means to rotate a cylindrical hay bale about its axis while supported in said cradle, means for winding a strip of film about a bale while supported in said cradle, said winding means comprising a reel and means to move said reel in a path extending around said cradle and a bale supported in said cradle, and means for tilting said cradle about a horizontal axis for unloading a bale from said cradle, motor traction means, a press connected to said motor traction means to be drawn thereby, said press comprising means to press hay into a cylindrical bale, means hooking said cradle to said press to be drawn thereby, said apparatus further including means to expel a cylindrical bale from said press and transport the expelled bale to said cradle, carriage means supporting said cradle including a pair of wheels mounted on a common axis, a pair of parallel elements extending perpendicular from the axis of said wheels, said elements comprising means to maintain a minimum distance between said carriage means and said press, said means hooking said carriage means to said press comprising a draw bar, means connected to said draw bar and said parallel elements guiding said draw bar for movement on said parallel elements and means for selectively providing a displacement between said draw bar and said carriage means to move said cradle away from said press and allow tilting of said cradle.
Dependencies are inferred from the claim text.