A MACHINE FOR FORMING KNOTTED FENCE MESH

A machine (1) for forming knotted fence mesh has a plurality of side by side knot boxes (6). Each knot box (6) is for forming a knot at an intersection between a line-wire (2) and a stay 5 wire (4). Each of the knot boxes (6) has a first pair of formers configured to move towards the line-wire-stay-wire intersection from a front side forming a knot at the line-wire-stay-wire intersection at each operation of the knot box (6), and a second pair of formers configured to move towards the line-wire-stay-wire intersection from a rear side at each operation of the knot box (6). The machine has a cam drive system configured to move a plurality of the 10 first pair of formers and the second pair of formers at each operation of the knot boxes (6). The cam drive system has a front cam assembly having a front pair of cams (20, 21) associated with the first pair of formers and a rear cam assembly having a rear pair of cams (17, 18) associated with the second pair of formers, wherein each of the cams (17, 18, 20, 21) has a respective profile. The profiles of each of the front pair of cams (20, 21) associated are 15 configured such that during a sector of a rotation of the front pair of cams (20, 21) associated, one of the first pair of formers accelerates while the other of the first pair of formers simultaneously decelerates. Ala) C\l (Y) ca w C\l (Y) cr) cc C\l