Board transmitting device for an upright PC board etching machine

Abstract

A board transmitting device for an upright PC board etching machine, includes a plurality of units each of which includes a U-shaped frame with a pair of serial wheel frames uprightly inserted in an upper end of both sides thereof, a rotation transmitting wheel disposed between and at one end of the U-shaped frame into which the serial wheel frames are inserted, and a power steering wheel disposed at the other end of the U-shaped frame opposite to the serial wheel frames. The plurality of units are mounted continuously to form an array of board transmitting device for an upright transmitting PC board of a certain length to drive a rotary shaft that passes through each of the power steering wheels so that each of the wheel frames and each of the rotation transmitting wheels rotate synchronously, and so that a clearance defined between two adjacent ones of the rotary wheels on each pair of the serial wheel frames can positively clamp and advance an upright PC board at a fixed-speed and with a fixed displacement space to ensure transmission and facilitate maintenance so as to enhance etching operation. The components of the unit are formed with inter-engageable engaging members to facilitate replacement thereof, and to ensure transmission and facilitate maintenance so as to enhance etching operation efficiency.

Dependencies are inferred from the claim text.