| 摘要 |
PURPOSE:To prevent transmission of oscillation of the base and to prevent oscillation and swivel of a linear parts feeder by coupling counterweights below a fixed portion with leaf springs to oscillate the counterweights in the opposite phase to troughs. CONSTITUTION:The first and second troughs 2, 3, a fixed portion 12 and counterweights 13, 14 are coupled in such a manner as to intersect each other by a pair of front and rear inclined leaf springs 16, 17 as shown in the drawing, and the fixed portion 12 is fixed to the base. Oscillation is applied to troughs 2, 3 in the opposite phase by exciting devices 18, 20. The counterweights 13, 14 are oscillated in the opposite phase, and oscillated in the opposite phase to corresponding troughs 2, 3 by exciting devices 22, 23. Oscillations of the troughs 2, 3 and the counterweights 13, 14 are cancelled each other at the fixed portion 12, so that the fixed portion 12 is not oscillated. Accordingly, the oscillation is not transmitted to the base 15, so as to prevent oscillation and swivel of the apparatus on the whole. |
