Controlled dispensing of material

摘要

A system and method for controlled dispensing of a material onto an elongated window component comprising a nozzle for dispensing the material into contact with a surface of the elongated window component at a delivery site located along a path of travel of the elongated window component, a conveyor for moving the elongated window component along the path of travel relative to the nozzle at a controlled speed, a metering pump for delivering controlled amounts of the material to the nozzle, a pressurized bulk supply for delivering the material to an inlet to the metering pump, a controller for regulating the speed of the metering pump to control the flow rate of the material dispensed by the nozzle, and a pressure transducer for monitoring the pressure of the material before the material is dispensed from the nozzle. The controller regulates the pressure of the material delivered to the metering pump from the bulk supply based on the pressure sensed by the pressure transducer.