Patent ID: 7628677

Claim:
An insulation block milling machine, comprising: a) a feed conveyor; b) an adjustable angle vertical band saw positioned adjacent to the feed conveyor, such that insulation blocks are fed to the band saw by the feed conveyor to be cut into a pair of cut blocks; c) a cut block conveyor positioned adjacent to the adjustable angle vertical band saw, such that the pair of cut blocks may be moved away from the adjustable angle vertical band saw for further processing; d) a lateral separation assembly positioned adjacent to the cut block conveyor and configured to laterally separate the pair of cut blocks such that a first cut block of the pair is positioned on a first grinding line and a second cut block of the pair is positioned on a second grinding line that is separated by a lateral distance from the first grinding line, wherein the lateral separation assembly further comprises at least two lateral drive belts configured to laterally separate the pair of cut blocks; e) an upper carriage positioned above the cut block conveyor and the lateral separation assembly, said upper carriage operatively connected to a transport ram, wherein the transport ram is configured to move the upper carriage assembly and the upper carriage assembly is configured to move the pair of cut blocks from the cut block conveyor into the lateral separation assembly and, following lateral separation of the pair of cut blocks, to move the first cut block along the first grinding line and the second cut block along the second grinding line; f) a first adjustable angle side grinder positioned to grind an uncut side of the first cut block moving along the first grinding line; g) a second adjustable angle side grinder positioned to grind an uncut side of the second cut block moving along the second grinding line; h) a convex upper grinder positioned to grind an upper surface of the first cut block moving along the first grinding line; i) a concave lower grinder positioned to grind a lower surface of the first cut block moving along the first grinding line; j) a concave upper grinder positioned to grind an upper surface of the second cut block moving along the second grinding line; and, k) a convex lower grinder positioned to grind a lower surface of the second cut block moving along the second grinding line.