Control device of circuit board hole blower knife and its control method

Abstract

This invention discloses a device for controlling a knife of hole-blowing machine of CB including a knife, an entry-board gluing roller set at the side of the entry-board up and down, an outgoing gluing roller set at the side of the outgoing board up and down and a linkage unit, which includes a pair of first up and down linkage blocks fixed at both ends of the entry board roller, a pair of second linkage blocks fixed at both ends of the outgoing board roller and a pair of third up and down linkage blocks at both ends of the knife matched to the first and second blocks to rise together with the first block and falls back together with the second block. This invention also provides a control method.

Description

technical field [0001] The invention relates to a circuit board hole blowing machine, in particular to an air knife control device of the circuit board hole blowing machine and a control method thereof. Background technique [0002] In circuit board processing, a purging process is often required to clean up the debris remaining on the circuit board or in the holes during drilling and other processing processes. The existing purging process usually uses a circuit board hole blowing machine. , Its main structure includes an air knife, a pair of rubber rollers are arranged on both sides of the air knife, and the circuit board is clamped by the rubber roller on one side of the air knife. When the circuit board moves to the lower end of the air knife, the air knife blows out high-speed airflow , clean the surface of the circuit board and the debris in the hole, and then clamp the board by the rubber roller on the other side. Generally speaking, the distance between the tuyere o...

AI Technical Summary

Problems solved by technology

But the defect of this existing hole blowing machine is: the position of its air knife is fixed, when circuit boards with different board thickness come in, the distance between the tuyere of the air knife and the upper surface of the circuit board will change accordingly, and the thickness of the circuit board, If the distance between the two is small, if the circuit board is thin, then the distance is large, which makes the blowing force on the surface of the circuit board correspondingly larger or smaller, which may damage the circuit board, or the blowing is not complete

Therefore, in actual processing, in order to achieve a better blowing effect, the wind speed, air pressure and other parameters of the air knife have to be adjusted frequently according to the plate thickness, or the height of the air knife needs to be adjusted, which is not conducive to improving work efficiency

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