Method and apparatus for tensioning metallic strips on a slittin

Details Method and apparatus for tensioning metallic strips on a slittin Method and apparatus for tensioning metallic strips on a slittin

1980-06-19

1981-11-03

Lawrence, Evan K.

Coating processes

With stretching or tensioning

Running lengths

118 33, 118 38, 427178, 427292, 427156, B05C 910, B65H 2304

Patent

active

042986338

ABSTRACT:
A method of tensioning metallic strips on a slitting line is combined with the steps of uncoiling a metallic web having a non-uniform cross sectional thickness from an uncoiler, slitting the web into a plurality of strips having varying thicknesses, and recoiling the strips into individual strip coils on a recoiler, the tensioning method being the additional step of depositing a strippable polymeric compound onto thinner strips so that the effective cross sectional thicknesses of the thinner strips is increased to that of the thicker strips so that the strip coils formed from the strips are of similar diameter and recoil the strips at the same rate, thereby preventing the formation of slack strips. The apparatus includes a hot melt unit for generating strippable plastic in liquid form, a hot melt gun communicating with the apparatus, a support frame and movable arm on which the gun is mounted, and a motor driving a rack and pinion for positioning the hot melt gun over a selected strip coil.

REFERENCES:
patent: 1271885 (1918-07-01), Freydberg
patent: 2726051 (1955-12-01), Deuchert
patent: 3685711 (1972-08-01), Gay
patent: 3771738 (1973-11-01), Abbey
patent: 4093140 (1978-06-01), Matsunaga

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