Patent ID: 7654385

Claim:
A machine for front joining and sticking of oblong wood workpieces by toothed front joints, the machine comprising: slides; an elastic coupling; a first adjustable screw; a second adjustable screw; entrance conveyors and exit conveyors that follow each other in a row, said entrance and exit conveyors comprising side chain units and pressing conveyors, said side chain units and said pressing conveyors forming a traveling channel for workpiece flow, said side chain units comprising a bearing profile, a frame, a linearly movable guide pin with a nut, a plain bearing and at least one elastic insertion, said frame and said bearing profile of said side chain units of said entrance conveyors or said exit conveyors defining an empty space at least one said elastic insertion being inserted in said empty space, said bearing profile having a first edge and a second edge, said first edge of bearing profile being joined with the linearly movable guide pin with the nut and said second edge being fixed to the plain bearing, said bearing profile being linearly movable on the slides; said pressing conveyors comprising a pressing conveyor frame, a pressing conveyor elastic insertion and a pressing conveyor bearing profile, said pressing conveyor frame and said pressing conveyor bearing profile defining an empty pressing conveyor space at least one said pressing conveyor elastic insertion being inserted into said empty pressing conveyor space; and a mechanism comprising a thread spindle, said mechanism flexibly joining each individual pair of side chain units inside said entrance conveyors and said exit conveyors at least one said elastic coupling being arranged adjacent to said thread spindle, one of said entrance conveyors being adjacent to one of said exit conveyors, each of said side units of said entrance conveyors comprising a first chain wheel, a second chain wheel, a first fixed cantilever arranged on said first chain wheel and a second fixed cantilever arranged on said second chain wheel, each of said side units of said exit conveyors comprising a third chain wheel, a fourth chain wheel, a first tension cantilever arranged on said third chain wheel and a second tension cantilever on said fourth chain wheel, said first adjustable screw being inserted between said first fixed cantilever and said first tension cantilever, said second adjustable screw being inserted between said second fixed cantilever and said second tension cantilever.