Browse Prior Art Database

Roll Scraping Blade

IP.com Disclosure Number: IPCOM000084386D
Original Publication Date: 1975-Nov-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Berlier, RA: AUTHOR [+2]

Abstract

This scraping blade is mounted such that it will not dig into the roll being cleaned as the cleaning reactive force increases. Also, the normal force by which the blade is loaded against the roll can be easily adjusted.

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Roll Scraping Blade

This scraping blade is mounted such that it will not dig into the roll being cleaned as the cleaning reactive force increases.

Also, the normal force by which the blade is loaded against the roll can be easily adjusted.

Roll 10 may include a relatively soft outer coating which is cleaned as the roll rotates, and as blade 11 moves axially back and forth along the length of the roll. The blade 11 is driven by double-helix lead screw 12 whose axis 13 is parallel to the axis of roll 10.

Blade 11 is carried by support block 14 whose outer end freely rides on rod
15. The axis of this rod is parallel to the axis of the lead screw 12. The blade 11 pivots about pivot 16 and is biased for counter-clockwise rotation about that pivot by spring 17. The position of this spring is adjustable by virtue of notches 18. Thus, as the spring 17 is moved toward the lead screw 12, the force with which the blade 11 is biased against the roll 10 increases.

Arrow 19 represents the reactive force created by the blade encountering material to be cleaned from the roll 10. Since this force vector extends above pivot 16, an unduly large reactive force causes the blade 11 to ride over the roll's surface contaminant, rather than digging into the roll 10.

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