Folding machine
AssigneeMaschinenbau Oppenweiler GmbH
InventorEmil Klenk
Life of this patent
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Abstract
The invention contemplates an improved folding machine for providing different types of folds. The machine includes a folding knife mechanism which is rotatably mounted in the machine frame about an axis of rotation which lies in the plane of the sheet to be folded so that at a first position the knife operates upwardly and at a second position the knife operates downwardly. These different directions of operation will produce different types of folds without the need of different folding mechanisms for each type of folds.
Claims14
Folding machine having a machine frame and a knife folding mechanism for folding a sheet introduced in said folding machine, said knife folding mechanism comprising a folding knife, said folding knife being mounted for reciprocating movement in an essentially vertical direction, an essentially horizontal aligning plane for aligning the sheet to be folded with respect to said folding mechanism, a conveyor means for conveying a sheet introduced into said folding machine to said aligning plane in a feeding direction, a pair of folding rollers between which the sheet to be folded is introduced by said folding knife from said aligning plane, said knife folding mechanism being rotatably mounted in said machine frame about an axis of rotation which is located in said aligning plane and parallel to said feeding direction, said folding machine further comprising locking means for locking said folding mechanism in a selected one of at least two angular positions about said axis of rotation, and drive means for driving said folding knife, said conveyor means and said folding rollers.
In a folding machine for a sheet of material having a machine frame, a folding knife mounted for reciprocation in an essentially vertical direction, conveyor means for feeding said sheets to an essentially horizontal alignment plane of said folding knife, roller means for folding said sheet after said sheet is fed from said alignment plane by said folding knife, drive means for driving said folding knife, said conveyor means and said roller means, the improvement wherein said folding knife includes means for rotatably indexing said folding knife about an index axis with respect to said frame, the axis of index rotation of said folding knife lying in said alignment plane and parallel to the direction of feed of said conveyor means, said folding knife being mounted at a radial offset from the axis of index rotation and oriented to reciprocate toward and back from said index axis, and index driving means for positioning said folding knife in one index position above said alignment plane and in another indexed position below said alignment plane.
Dependencies are inferred from the claim text.