Semiconductor chip mounter

The invention discloses a semiconductor chip mounter, which comprises a chip mounter main body, wherein a board conveying and mounting device used for conveying and fixing a PCB is installed on the chip mounter main body, an element feeder used for continuously positioning and supplying component chip bulk materials is installed at the front end of the chip mounter main body, the board conveying and mounting device comprises two sets of symmetrically-arranged board edge conveying belt mechanisms, the two sets of board edge conveying belt mechanisms are each provided with a multi-point type rolling mechanism which is used in cooperation with the corresponding board edge conveying belt mechanism and elastically rolls the side edge of a board, a synchronous driving mechanism is installed between the two sets of board edge conveying belt mechanisms for synchronous driving and one-way rotation, the board edge conveying belt mechanisms are synchronously driven through the synchronous drivingmechanism, and the tight