Manually held solder and adhesive dispenser for sud fixing - has material dispensed by air pressure produced by compression with piston device

摘要

A manual dispenser of solder and/or adhesive for fixing surface mounted devices onto circuit boards has a cartridge (8) coupled to a compressed air generator (6). The generator is in the form of a linear actuator with a piston (5) that is moved to cause the pressure in a chamber (15) and coupled tube (7) to rise. The piston is moved at a controlled rate by a motor (1) that via a gearbox (3) rotates the piston rod (4), which is in the form of a leadscrew. When the pressure reaches a set value to line is unloaded by a valve (40) to end the dispensing cycle. ADVANTAGE - System is not dependent upon external compressed air.