Parts send-out control device for vibratory parts feeder

Abstract

In a device for conveying parts delivered from a parts feeder by air ejection, a part detection sensor ( 22 ) is installed near an air nozzle ( 12 ) disposed in a send-out passage ( 5 ), and vibratory motion of the parts feeder is stopped while air is ejected from the air nozzle ( 12 ) in response to a part detection signal transmitted by the parts detection sensor ( 22 ), ensuring that an excessive number of parts are not accumulated for the conveying ability of the air ejection.

What is claimed  we claim is:  
     
       1. A parts send-out control apparatus of vibratory parts feeder characterized by an air nozzle for ejecting conveying air in a send-out passage of a vibratory parts feeder, an excitation unit in the parts feeder generating vibratory motion, and a part detection sensor disposed in the send-out passagenear the air nozzle , wherein the excitation unit generating the vibratory motion of the parts feeder is stopped and the conveying air is ejected from the air nozzle in response to a part detection electric signal transmitted by the part detection sensor. 
     
     
       2. A parts send-out control apparatus of vibratory parts feeder of claim  1 , wherein the send-out passage has a vent for allowing the air in the send-out passage in front of the parts to go out, and silencing means is installed in the vent. 
     
     
       3. A parts send-out control apparatus of vibratory parts feeder of claim  2 , wherein the silencing means is composed of a porous permeability resisting member. 
     
     
       4. A parts send- out control apparatus of vibratory parts feeder of claim  1 , wherein the part detection sensor is near the air nozzle.   
     
     
       5. A parts send- out control apparatus of vibratory parts feeder of claim  1 , further characterized by a control circuit detecting the parts immediately before a desired position and transmitting an electric signal to stop the excitation unit generating the vibratory motion of the parts feeder.   
     
     
       6. A parts send- out control apparatus of vibratory parts feeder characterized by an air nozzle for ejecting conveying air in a send - out passage of a vibratory parts feeder, and a part detection sensor disposed in the send - out passage, wherein the conveying air is ejected from the air nozzle in response to a part detection electric signal transmitted by the part detection sensor while the vibratory motion of the parts feeder is stopped.   
     
     
       7. A parts send- out control apparatus of vibratory parts feeder characterized by an air nozzle for ejecting conveying air in a send - out passage of a vibratory parts feeder, and a part detection sensor disposed in the send - out passage at a desired position, wherein the vibratory motion of the parts feeder is stopped and the conveying air is ejected from the air nozzle in response to a part detection electric signal transmitted by the part detection sensor.