TENON-MAKING MACHINE Russian patent published in 1996 - IPC

FIELD: woodworking industry for cutting of corner box tenons in production of wood tare. SUBSTANCE: the machine has a bed, tenon- making heads with drives, chain conveyer with a drive, beams, stops 15 hinge-joined to chains 14 by levers 18 with supporting rolls 20 and 25. The conveyer beams carry master spindless 22 and guide fences 24, as well as side fences and spring-loaded pushers opposite them. Blocks 25 with spring-loaded clamps 29 are mounted on stops 15. During operation blank 37 is placed on conveyer stops 15; during conveyer motion the spring-loaded pushers press the blank to the fence with its right-hand end. Then roll 20 rises on master spindle 22, and roll 23 moves under fence 24. The blank gets clamped, and then tenons are made on its right-hand end. After that roll 20 comes down from the master spindle, the blank is released from the clamp, and the spring-loaded pushers shift it to the left-hand fence with its left-hand end. Then in a similar way tenons are made on the blank left-hand end. EFFECT: improved design. 3 dwg