Patent ID: 7223086

Claim:
A golf ball manufacturing apparatus comprising: a mold including a cavity for forming a golf ball; an injection molding machine for supplying a molten resin to the mold; a supply portion for supplying a resin pellet to the injection molding machine; and a crushing machine for crushing a residue discharged from the mold, thereby preparing a regenerating pellet, wherein the supply portion includes a main cylinder, and a cylinder for a regenerating pellet and a cylinder for a virgin pellet which branch upward from the main cylinder, an inclination angle α to a vertical line of the cylinder for a regenerating pellet is equal to or smaller than 20 degrees, an inclination angle β to a vertical line of the cylinder for a virgin pellet is 30 to 60 degrees, the crushing machine is coupled to the cylinder for a regenerating pellet, and the regenerating pellet is transferred from the crushing machine to the main cylinder through the cylinder for a regenerating pellet and in the cylinder for a regenerating pellet, the regenerating pellet is transported by gravity, and in the cylinder for a virgin pellet, the virgin pellet is transported by gravity.