Abstract: A method for manufacturing a golf ball having a multi-layered pattern is provided. Firstly, a semi-finished product of the golf ball is provided and includes a ball-shaped body and a base layer covering an outer surface of the ball-shaped body. Then, the semi-finished product of the golf ball is rotated at a predetermined rotation speed, and a color paint is applied to the semi-finished product of the golf ball by spraying from each of an upper position, a middle position, and a lower position. The multi-layered pattern includes an upper-layer pattern area, a mid-layer pattern area, and a lower-layer pattern area that are different in color from each other.

Abstract: An apparatus for manufacturing golf balls each having an exterior pattern includes a conveying device and a spraying device. The spraying device is disposed at one side of a first processing area. The conveying device is configured to convey a ball-shaped body into the first processing area along a predetermined path, and to rotate the ball-shaped body at a predetermined speed. The spraying device includes a first sprayer and a second sprayer. The first sprayer and the second sprayer are configured to apply a color paint to the ball-shaped body from each of an upper position and a lower position.

Abstract: A method for manufacturing a golf ball having a non-uniform dot pattern is provided. Firstly, a semi-finished product of a golf ball is provided, which includes a ball body and a base layer covering an outer surface of the ball body. After that, the semi-finished product of the golf ball is rotated at a predetermined rotation speed, and a color paint is applied to the semi-finished product of the golf ball in a spraying manner from each of an upper position and a lower position.

Abstract: An apparatus and method of indicating the ball center of gravity position. The method of indicating the ball center of gravity position includes the following step of: moving the ball to a rotating member of a rotating device; driving the rotating member to rotate the ball along a axis of rotation of the rotating device, and adjust the center of gravity of the ball corresponding to the position of the rotating device; moving the ball onto a first carrier of a first transport device; and marking an identification mark on a predetermined area of the ball.