Score Knife Positioner
AssigneeCatbridge Machinery LLC
InventorsMichael T. Pappas, Michael F. Yermal
Life of this patent
Estimating the term…
Abstract
A score knife positioner includes a carriage bracket having a locating tab for receiving a score knife assembly. Linear bearings are attached to the carriage bracket and are configured to engage with a pair of guide rails. The linear bearings are offset from one another and located so that score knife positioners on either side of a particular score knife positioner can be nested together. The carriage bracket has a width less than a width of the score knife assembly and allows adjacent score knife assemblies to be positioned so that there is less than one-half inch between score knifes. Score knife positioners can be moved to a desired location and locked into place via a carriage brake attached to the carriage bracket.
Claims24
A carriage assembly comprising:
- a carriage bracket having a linear bearing attached thereto and a score knife holder holding a score knife attached thereto;
- and
- a brake assembly comprising:
- a brake piston comprising a foot extending from a common member perpendicular to the foot, the foot located substantially in a same plane as the score knife;
- and
- a brake return spring located between the brake piston and the carriage bracket;
- wherein the foot of the brake piston are extendible through a first surface of the carriage bracket toward a second surface of the carriage bracket, the brake return spring opposing movement of the brake piston toward the second surface.
A score knife carriage assembly comprising:
- a brake piston comprising a plurality of feet extending substantially perpendicular from a common member, the feet spaced apart from one another;
- a carriage bracket comprising:
- a mounting to receive a linear bearing;
- a mounting to receive a score knife holder holding a score knife;
- an opening parallel to the mounting to receive the linear bearing, the opening to receive a portion of a brake plate;
- a recess for receiving the brake piston, the recess having a shape substantially the same as the common member of the brake piston, the recess having a plurality of openings for receiving the plurality of feet of the brake piston, the plurality of feet of the brake piston extendible through the plurality of openings into the opening parallel to the plurality of mountings to clamp the brake plate between the plurality of feet of the brake piston and a surface of the opening parallel to the plurality of mountings when in an engaged position.
An apparatus for scoring a web, the apparatus comprising:
- a carriage assembly;
- a score knife in a score knife holder attached to the carriage assembly;
- a linear bearing attached to the carriage assembly;
- a guide rail, the linear bearing slidably connected to the guide rail;
- a brake piston slidably connected to the carriage assembly;
- and
- a brake plate;
- wherein the carriage assembly is locked in a desired location along the guide rail by the brake piston clamping a portion of the brake plate between the brake piston and a surface of the carriage assembly when in an engaged position.
A carriage assembly comprising:
- a carriage bracket having a plurality of linear bearings attached thereto and a score knife holder holding a score knife attached thereto;
- and
- a brake assembly comprising:
- a brake piston comprising a plurality of feet extending from a common member perpendicular to the plurality of feet, the feet spaced apart from one another and located substantially in a same plane as the score knife;
- and
- a brake return spring located between the brake piston and the carriage bracket;
- wherein the plurality of feet of the brake piston are extendible through a first surface of the carriage bracket toward a second surface of the carriage bracket, the brake return spring opposing movement of the brake piston toward the second surface.
Dependencies are inferred from the claim text.