PLANT FOR PRODUCING PRESSED WOODEN BAR Russian patent published in 1997 - IPC

FIELD: woodworking. SUBSTANCE: plant is intended for producing continuously pressed wooden bar by way of cyclic compression of added portions of wooden particles with addition of binding component. Plant is provided with hydraulic cylinder with piston and rod, pressing chamber in which movable is pusher connected with rod and it has core maker for producing longitudinal internal passage over entire length of bar. Core maker is installed stationary relative to pusher, and hydraulic cylinder is provided with additional piston connected with core maker by means of stem inserted through cylinder rod which is hollow. Installed in piston is valve to allow for emptying of space created between main and additional pistons during operation of plant. EFFECT: high efficiency. 1 cl, 3 dwg