B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
B31B 1/25 (2006.01) B26D 7/02 (2006.01) B26D 7/26 (2006.01)
Patent
CA 2123386
Abstract of the Disclosure A method and apparatus for scoring plastic tamper indicating closures to provide the tamper indicating band that is connected to the closure by bridges formed by scoring. The scoring is achieved by successively moving a rotating closure past a stationary primary knife blade having an arcuate concave interrupted cutting edge to form the bridges and then past a secondary knife blade having an arcuate concave uninterrupted cutting edge to accurately dimension the bridges. The method and apparatus provides for supporting each knife blade on a holder wherein the position of the blade can be set by setting the blade into a knife blade holder using a setting fixture remote from the apparatus, clamping the blade within the knife blade holder, transferring the knife holder to a machine mounting on the apparatus, then attaching the knife holder to the machine mounting without further adjustment, such that the arcuate knife blade is aligned with the center of the radius of the arc of each arcuate knife blade lies on a radial line from the curvature of the cutting edge to the center of the apparatus Each knife blade holder is preferably mounted on a slide on the rotary apparatus such that the arcuate edge can be adjusted so that the concave arc is parallel to the path of travel of the mandrels and at the required depth from the successive scoring.
Gowling Lafleur Henderson Llp
Owens-Illinois Closure Inc.
LandOfFree
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