Flighted belt conveyor and scraper
AssigneeLaitram, L.L.C.
InventorsGurvinder Gandhi, Bryant G. Ragan, Jake A. Mohan
Life of this patent
Estimating the term…
Abstract
Conveyor systems with scraper assemblies to scrape bulk products and residue adhering to the outer conveying surfaces and the faces of the flights of conveyor belts. The scraper assemblies include a scraping element and an adjustment mechanism to move the scraping element along the conveyor belt's outer conveying surface and up the flights to scrape off material adhering to the conveying surface and the faces of the flights.
Claims48
A conveyor system comprising:
- a conveyor belt extending in width in a width direction from a first side to a second side and having an outer conveying surface and flights standing up from the outer conveying surface to top ends and extending in the width direction and having leading and trailing faces in a direction of belt travel;
- a conveyor frame having a carryway supporting the conveyor belt along an upper run, a return below the carryway, and a reversing element that directs the conveyor belt along a reversing path from the carryway to the return;
- a scraper assembly including:
- a scraping element extending across the conveyor belt's width;
- an adjustment mechanism configured to move the scraping element along the outer conveying surface and up the flights to scrape the outer conveying surface and the flights as the conveyor belt advances in the direction of belt travel, wherein the scraping is performed at least along an upper portion of the reversing path.
A conveyor system comprising:
- a conveyor belt extending in width in a width direction from a first side to a second side and having an outer conveying surface and flights standing up from the outer conveying surface to top ends and extending in the width direction and having leading and trailing faces in a direction of belt travel;
- a conveyor frame having a carryway supporting the conveyor belt along an upper run, a return below the carryway, and a reversing element that is rotatable on an axis of rotation and that directs the conveyor belt along a reversing path from the carryway to the return;
- a scraper assembly including:
- a scraping element extending across the conveyor belt's width;
- an adjustment mechanism including a first arm at the first side of the conveyor belt, the first arm connected at one end to the scraping element and to a first pivot at the other end, wherein the first pivot has a pivot axis coincident with the axis of rotation of the reversing element;
- wherein the adjustment mechanism is configured to move the scraping element along the outer conveying surface and up the flights to scrape the outer conveying surface and the flights rounding the reversing element.
A scraper assembly for scraping a conveyor belt with flights along a reversing path around a reversing element rotating on an axis of rotation, the scraper assembly comprising:
- first and second arms, each pivotable about a pivot axis and positionable with respect to a conveyor belt so that the pivot axis coincides with an axis of rotation of a reversing element and having a first end and a second end;
- a scraping element connected between the second ends of the first and second arms;
- wherein the scraping element is movable between a first level and a different second level.
A scraper assembly comprising:
- first and second arms, each pivotable about a pivot axis over a pivot range and having a first end and a second end;
- a linear scraping element connected between the second ends of the first and second arms;
- wherein the linear scraping element is movable between a first level and a different second level as the first and second arms pivot over the pivot range.
Dependencies are inferred from the claim text.