Adjustable steel wire brush mechanism

The invention relates to an adjustable steel wire brush mechanism. The adjustable steel wire brush mechanism comprises a steel wire brush, a connecting rod, a spring, a locking nut, a spring pressingblock, a ball collecting net center shaft, a first L-shaped fixing plate and a second L-shaped fixing plate, wherein the ball collecting net center shaft is provided with a mounting plate; a steel wire brush guide device is mounted at the top end of the steel wire brush; the connecting rod is integrally connected with the steel wire brush through a mandrel; the spring penetrates into the connecting rod, the spring pressing block is screwed into the second L-shaped fixing plate through threads to press the spring so as to adjust the pre-tightening force of the spring, and the locking nut is used for locking the spring pressing block; and rabbets of the first L-shaped fixing plate and the second L-shaped fixing plate notch and the mounting plate correspondingly form a first steel wire brushmounting groove and a seco