Full rotation type, paper web shearing machine

Details Full rotation type, paper web shearing machine Full rotation type, paper web shearing machine

B - Operations, Transporting

26

D

164/117

B26D 1/38 (2006.01)

Patent

CA 1047916

FULL ROTATION TYPE, PAPER WEB STEERING MACHINE ABSTRACT OF THE DISCLOSURE A full rotation type, paper web shearing machine comprises; a rotary blade with a shearing edge extending crosswise of a plane making a right angle to a rotary shaft; a stationary blade with a shearing edge elastically contacting the rotary blade; and a guide ring provided on the shearing starting side of the rotary blade concentrically therewith, and having a radius equal to a radius of gyration of the edge of the rotary blade at the shear- ing starting point of the blade, with the edge of the stationary blade contacting the guide ring. Rotation is transmitted by way of a clutch from a drive shaft normally rotating in one direction, to the rotary shaft of the shearing machine, so as to rotate the rotary blade through one full turn, thereby cutting a paper web to a given length. The rotary blade which effects one full rotation at the time of shearing ensures the satisfactory cutting of a paper web travelling at a low speed as well as at a high speed. This shearing machine is reduced in size, free from an impact noise, extended in service life and less costly to manufacture.

236112

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