Production of plastic materials as the most important step is to have a ball mould plastic. The size of the mold is according to the size of diameter of the plastic ball to open mold, plastic ball to powder mold equipment, CNC machining center, EDM processing, grinder, milling machine and other, production of plastic pellets mainly has: injection molding machine, crane, machine powder, mixed feeding machine, precision grinding machine, the second element projectors, and other. Plastic ball grinding machine is one of the main production equipment, grinding machine precision equipment, the basic working principle of the following: the first is to introduce the plastic ball blank ball into the ball milling machine for grinding ball milling machine, the working surface has two blocks, an upper millstone and a lower millstone, millstone mainly to the plastic blank ball positioning for ball mill in the guarantee of plastic ball to rotate at a certain path in the ball milling machine, grinding machine is under the grinding ball grinding wheel, grinding wheel through high precision lathe with me, diameter and processing plastic ball diameter is the same size, this kind of plastic ball high speed rotation in the grinding ball grinding machine, the plastic ball spinning process, finally reached the required precision, the plastic ball out into the special polishing machine for polishing, polishing after completion of plastic products Ball. Technical indicators: requirements to operate in strict accordance with the rules to the operation of the machine, processing precision must be to achieve + 0.01 mm, the surface is bright and clean degree to reaches 0.001 m over the value. .