Browse Prior Art Database

Metallizer Chill Drum Cleaning Mechanism

IP.com Disclosure Number: IPCOM000120770D
Original Publication Date: 1991-Jun-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 3 page(s) / 84K

Publishing Venue

IBM

Related People

Blackwell, KJ: AUTHOR [+4]

Abstract

Heat transfer between the dielectric film (web) and a drum surface is decreased by the build-up of deposited metal. This build-up causes heat damage to the web.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 71% of the total text.

Metallizer Chill Drum Cleaning Mechanism

      Heat transfer between the dielectric film (web) and a
drum surface is decreased by the build-up of deposited metal. This
build-up causes heat damage to the web.

      Originally the deposit build-up was scraped off by hand using
razor blades.

      Maintenance time required for cleaning residual deposits from a
roll metallizer chill drum is significantly reduced using the
apparatus shown in Fig. 1 (side view) and Fig. 2.

      In Fig. 1, the apparatus is mounted so that sharp blades
contact the chilled drum at an angle which provides shearing at the
coating to drum interface.  The drum is rotated in the direction of
the blades and the coating peels off the drum surface.  As the drum
rotates, vacuum is applied to the blade vicinity for removal of the
peel.

      The blade angle is adjustable for optimum peel removal by
adjusting the angle between L claim 1 and support art 2. The blade
housing assembly 3 is adjusted by sliding up or down the support arm
for angle of attack to the drum surface.  This adjustment is made by
turning the two angle of attack knurl nuts 4, shown in Fig. 2.
Individual blade force is controlled and balanced by the compression
springs 5.  The springs and individual blades compensate for slight
non-uniformities in drum surface.  Blades are removed by unscrewing
the blade clamp hex head screw 6 for replacement, shown in Fig. 3.

      Once the initial cleaning is made, the as...