Tennis ball transmitter

The invention provides a tennis ball launcher, and relates to the field of launchers, the tennis ball launcher comprises a launching mechanism, a ball shifting disc, a ball storage bin and a mounting rack, the ball shifting disc and the ball storage bin are mounted on the mounting rack, the ball shifting disc is arranged at the bottom of the ball storage bin, an outlet of the ball shifting disc is communicated with an inlet of the launching mechanism, and the ball shifting disc is used for conveying tennis balls into the launching mechanism from the ball storage bin; the launching mechanism comprises a link assembly, a pitching assembly and a limiting assembly. When the launching angle of the launching mechanism needs to be adjusted, a second baffle in a pitching assembly rotates, a temporary storage bin rotates around the axis of a rotating shaft at the moment, and when tennis balls are stacked to an outlet of a link assembly, the centers of the tennis balls located at the outlet of the link assembly interse