DEVICE FOR CUTTING ROLL MATERIAL INTO SHEETS AND PACKING Russian patent published in 2005 - IPC

FIELD: cutting.

SUBSTANCE: device comprises frame, drum, drive, mechanism for cutting with movable knife and mechanism for packing cut sheets, mechanism for locking blade of the knife with respect to the drum having shaft with pins, and mechanism for changing the length of sheet cut made of double-arm lever whose axis of rocking is in coincidence with the axis of rotation of the drum shaft pin. One of the arms of the lever is pivotally connected with the frame through screw lever, and the other arm has axle on which the driven cylindrical pinion is mounted for permitting rotation. The pinion engages the driving pinion mounted on the pin of the drum shaft. The mechanism for cutting comprises shaft of the knife holders which are arranged on it with equal angular step, crankpin mounted on the driven pinion of the drive, double-arm lever mounted for permitting angular rocking about the pin of the shaft of the knife holders, and tie pivotally connected with the double-arm lever of the cutting mechanism. The second end of the double-arm lever of the mechanism for cutting is connected with the frame through a flexible member. The double-arm lever of the cutting mechanism has drum in the plane of which mutually spring-loaded braking friction shoes are oppositely arranged. The blocks are connected kinematically with the other double-arm lever rigidly connected with the pin of the knife holder shaft. The mechanism for locking blade of the knife with respect to the drum has double-arm lever. The frame is provided with additional drum whose space receives mutually spring-loaded braking friction shoes kinematically connected vie ties with the mechanism of locking knife blade with respect to the drum. The mechanism for cutting and mechanism for locking knife blade with respect to the drum are mounted oppositely at the ends of the shaft of the knife holders.

EFFECT: simplified structure, enhanced reliability, and reduced labor consumption.

4 cl, 5 dwg