Paste dispenser for applying paste containing fillers using nozzle with pin and application method using the same

摘要

A pin (125) is moved down in a nozzle (121), the end of paste (101) protruded from the discharge opening (122) of the nozzle (121) to a target object (102) is brought into contact with the target object (102), and the pin (125) is moved away from the discharge opening (122) to divide the paste in contact with the target object.

主权项

1. A paste dispenser comprising:
a nozzle which has a discharge opening formed on an end, is disposed above a target object with the discharge opening placed at a bottom of said nozzle, and said nozzle is filled with paste containing fillers, with an inside of the nozzle having a shape tapered toward the discharge opening, wherein at least one of the nozzle and the target object moves to decrease or increase a distance between the nozzle and the target object; said nozzle is placed in an elevator mount, said elevator mount raises and lowers the nozzle, and a pin which is disposed in the nozzle, and which moves toward and away from the discharge opening, an end of the pin being smaller than the discharge opening, a space being defined between the pin and an inner periphery of the discharge opening so the pin does not contact the inner periphery of the discharge opening, wherein the end of the pin does not protrude from the discharge opening to an outside of the nozzle; an upper end of said pin is attached to a slider, said pin is moved up and down by movement of the slider up and down, wherein the pin is configured to approach the discharge opening so as not to drip the paste from the discharge opening when the discharge opening of the nozzle approaches the target object, and separate the paste in contact with the target object from the paste around the discharge opening, by moving the pin away from the discharge opening in synchronization with a movement increasing a distance between the nozzle and the target object when the paste protruded toward the target object from the nozzle is in contact with the target object; wherein said pin is configured to move away from the discharge opening at a velocity at least twice a velocity at which the pin is moved toward the discharge opening.