Patent ID: 6976572

Claim:
Method for synchronizing loads before their injection onto a tilt tray type sorting machine, this machine comprising a set of trays ( 1 AP) moving at a pre-determined speed in front of an injection system comprising conveyor means ( 1 AQ 1 , 1 AQ 2 ) to advance the loads one by one towards an injection site, a synchronization conveyor ( 1 AS) to position a load coming from the said conveyor means in a position allowing for it to be placed on a tray in ballistic mode, a device ( 1 Al) for injecting a load coming from the said synchronization conveyor onto the sorting machine, and means of detecting the position of the loads within the injection system comprising a detection cell ( 1 AS 2 ) arranged approximately at the exit of the synchronization conveyor ( 1 AS), characterized in that when a load has overshot the exit detection cell ( 1 AS 2 ), the following stages take place: control of the synchronization conveyor ( 1 AS) and the injection device 1 Al according to a reverse movement with slight acceleration and a top speed of a pre-determined value V AR , so that the load returns to obscure the exit detection cell ( 1 AS 2 ), continuation of the reversal control unit the exit detection cell ( 1 AS 2 ) is no longer obscured, and then for a pre-determined period, and control of the synchronization conveyor according to a forward movement with slight acceleration and a top speed of a pre-determined value V AV until the exit detection cell ( 1 AS 2 ) is obscured.