Conveyor belt scraper and system for the same

A scraper blade system for removing residual material from a conveyor belt at the head pulley comprising:

• a) at least one scraper blade having:
• i) a tip having a front face with a scraper edge, an opposing supported end, a front side, and a back side;
• ii) a resilient base attached to the tip, wherein the base has a supporting end, an anchor end, a front side, and a back side, wherein, in a relaxed state a reference line extends from the anchor end of the base to the scraper edge;
• iii) wherein the base has a curved profile with a concave bend on the back side adjacent to the anchor end of the base;
• and
• iv) a slot extending through the anchor end;
• b) an adjustment block mounted to a frame, wherein the block has a connector extending therefrom which engages and supports at least one scraper blade, wherein the connector positions each scraper blade tip against the belt at the head pulley and is angularly adjustable such that each scraper blade may be rotated to urge the scraper blade against the belt;
• c) wherein in a first position, each scraper blade is rotated a predetermined amount relative to a fixed anchor end such that the resilient base is deformed and the tip exerts a force in a first direction generally perpendicular to and outwardly from the front face;
• and
• d) wherein in a second position, each scraper tip is compressed from the first position with a force applied to the tip in a direction generally parallel to the front face of the tip such that the base deforms in a direction along the front face and also deforms in a direction perpendicular to and inwardly from the front face.

A scraper blade for removing residual material from a conveyor belt, wherein the blade is comprised of:

• a) a tip having a front face with a scraper edge, an opposing supported end, a front side, and a back side;
• b) a resilient base attached to the tip, wherein the base has a supporting end, an anchor end, a front side, and a back side;
• c) wherein the base has a serpentine profile with a concave bend on the back side adjacent to the anchor end of the base and a concave bend on the front side adjacent to the tip;
• and
• d) wherein the front side and the back side of the tip taper away from one another as they extend away from the scraper edge, such that as the front face wears, the front face has a greater thickness.

A scraper blade system for removing residual material from a conveyor belt at the head pulley comprising:

• a) at least one scraper blade having:
• i) a tip having a front face with a scraper edge, an opposing supported end, a front side, and a back side;
• ii) a resilient base attached to the tip, wherein the base has a supporting end, an anchor end, a front side, and a back side, wherein, in a relaxed state a reference line extends from the anchor end of the base to the scraper edge;
• iii) wherein the base has a curved profile with a concave bend on the back side adjacent to the anchor end of the base;
• and
• iv) a slot extending through the anchor end;
• b) an adjustment block mounted to a frame, wherein the block adjusts the rotation of the scraper blade and thereafter holds the scraper blade non-rotatable with respect to the block such that each scraper blade may be rotated to a predetermined rotational position to urge the scraper blade against the belt;
• c) wherein in a first position, each scraper blade is rotated a predetermined amount relative to a fixed anchor end such that the resilient base is deformed and the tip exerts a force in a first direction generally perpendicular to and outwardly from the front face;
• and
• d) wherein in a second position, each scraper tip is compressed from the first position with a force applied to the tip in a direction generally parallel to the front face of the tip such that the base deforms in a direction along the front face and also deforms in a direction perpendicular to and inwardly from the front face.