Top Side Support for a Circuit Board Subjected to Wave Solder
Original Publication Date: 1987-Jul-01
Included in the Prior Art Database: 2005-Feb-01
A circuit board is prevented from bowing upwardly during a wave soldering operation by free-floating wheels, which can be weighted as required to hold the circuit board flat without restraining forward motion of the circuit board. A circuit board 1 moves from left to right through a wave soldering machine, which produces a solder wave 2 by having its sides grasped by a conveyor (not shown). A first wheel 3 is rotatably supported by an arm 4, which is pivotally mounted on a pivot pin 5 of a bracket 6 attached to a mounting bar 7. The mounting bar 7 bridges the conveyor. A second wheel 8 is rotatably supported on an arm 9, which also is pivotally mounted on the pivot pin 5. The wheels 3 and 8 are positioned about three inches apart.