Cutting Assemby

A cutting assembly for cutting with four cutting blades simultaneously of a rectangular or square formation of cut lines, comprising:

• a motion conversion mechanism comprising:
• a first part arranged to rotate about a central axis thereof and coupled to a drive means for causing the rotation,
• four rentable second parts angularly spaced around the central axis of the first part, the first and second parts being arranged such that the rotation of the first part in a direction of rotation causes rotation in a corresponding direction of rotation of each second part about an axis thereof extending away from the central axis of the first part;
• and
• for each second part, a coupling mechanism arranged to couple the second part to a respective cutting blade, such that the rotation of the second part causes back and forth cutting motion of the cutting blade,
• wherein each coupling means comprises retaining means arranged to retain the respective cutting blade and mounted for predetermined movement, the four retaining means being mounted to retain the cutting blades for cutting of a rectangular or square formation of cut lines, and
• wherein the coupling means is arranged so that the rotation of the respective second part causes the predetermined movement, and the predetermined movement of the retaining means imparts the back and forth cutting motion to the respective cutting blade,
• wherein the four retaining means are arranged to return the cutting blades for cutting of a rectangular or square formation of cut lines.