System and method for pre-conditioning pneumatic tires prior to mounting same onto a wheel
A tire pre-conditioning system includes a first mandrel, a second mandrel spaced apart from the first mandrel, and a controller in communication with the first mandrel and the second mandrel. The first mandrel is fixedly attached to a first shaft and including a first tapered sidewall. The second mandrel is fixedly attached to a second shaft and including a second tapered sidewall. The controller is operable to axially move the first mandrel and the second mandrel toward one another until the first and second tapered sidewalls are opposing respective beads of a tire, and supply pressurized fluid into an internal cavity of the tire to inflate the tire. The inflating causing the beads to move relative to mandrels while contacting the opposing respective tapered sidewalls to burnish the beads of the tire.
1. A method of pre-conditioning a tire, the method comprising:
positioning the tire in a tire vice between a first mandrel and a second mandrel spaced apart from the first mandrel, the first mandrel attached to a first shaft, and the second mandrel attached to a second shaft;
moving the first mandrel and the second mandrel toward one another until a first sidewall of the first mandrel is opposing a circumferential first bead of the tire and a second sidewall of the second mandrel is opposing a circumferential second bead of the tire;
when the first sidewall is opposing the first bead and the second sidewall is opposing the second bead:
providing pressurized fluid from an air pressure source to an internal cavity of the tire via a slip sleeve defined by the first shaft or the second shaft, wherein providing pressurized fluid to the internal cavity of the tire burnishes excess tire material from the first bead and the second bead as the first bead moves relative to the first mandrel while in contact with the first sidewall and the second bead moves relative to the second mandrel while in contact with the second sidewall;
moving at least one of the first mandrel or the second mandrel away from the other of the first mandrel or the second mandrel; and
removing the tire from the tire vice.
2. The method of claim 1 , wherein the circumferential first bead and the circumferential second bead of the tire each define a respective tire opening coaxial with a first longitudinal axis of the first shaft and a second longitudinal axis of the second shaft when the tire is positioned in the tire vice between the first mandrel and the second mandrel.
3. The method of claim 1 , wherein positioning the tire in the tire vice comprises positioning an uninflated tire in the tire vice.
4. The method of claim 1 , further comprising:
after inflating the tire with the pressurized fluid, rotating the first mandrel and the second mandrel about a longitudinal axis relative to the tire to remove excess tire material from the first bead and the second bead.
5. The method of claim 1 , further comprising:
prior to moving the first mandrel and the second mandrel away from one another, deflating the tire by opening an air release valve disposed in an air conduit fluidly connecting the air pressure source and the slip sleeve.
6. The method of claim 1 , wherein exterior surfaces of the first sidewall and the second sidewall are at least one of roughened or include abrasive materials.
7. The method of claim 1 , wherein at least one of the first sidewall or the second sidewall defines a circumferential burnishing region defined by a series of apertures.
8. The method of claim 1 , wherein at least one of the first sidewall or the second sidewall comprises a circumferential axial stop protruding radially outward from the at least one of the first sidewall or the second sidewall.