Cutting – Rotatable disc tool pair or tool and carrier – With means to permit replacement of tool
Patent
1990-03-02
1991-11-26
Yost, Frank T.
Cutting
Rotatable disc tool pair or tool and carrier
With means to permit replacement of tool
83491, 83505, 403334, B26D 122
Patent
active
050673807
ABSTRACT:
A cutting mechanism for slitting superimposed layers of paper webs, with the cutting roller provided as the lower knife or blade shaft, is replaceable in a few minutes by means of a fast assembly device. For this purpose a rapid assembly coupling is associated with each of the journal-free ends of the cutting roller, of which one simultaneously serves as a drive coupling for drive connection with an operating drive. Each coupling has a coupling member, formed by a cone pulley which is mounted in rotary and axially displaceable manner with respect to a base and a fixed coupling member located on the cutting roller, which is constructed as a complementary inner core. For transferring the cutting roller between its fitted position and a removal position, roll or sliding rails are provided, which slightly raise the cutting roller on engaging couplings and therefore make it contact-free. The rails have positioning aids, so that in each case one cutting roller can in simple manner assume its intended position with respect to the base.
REFERENCES:
patent: 3545326 (1970-12-01), Madachy
patent: 4681478 (1987-07-01), Kunz
bielomatik Leuze GmbH & Co.
Peterson Kenneth E.
Yost Frank T.
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