The pretreatment of chocolate before feeding. The cocoa liquid and cocoa butter are all solid raw materials at normal temperature. They should be heated and melted in a sandwich pan or heat preservation tank. The melting temperature of cocoa butter and cocoa butter should not exceed 60 ℃, and the heat preservation time should not be too long. In order to accelerate the melting rate, large raw materials can be divided into small pieces in advance. The granulated sugar contained in the raw materials is basically granular. Before mixing and grinding, it must be processed into sugar powder and then added. Product series: Chocolate grain sugar row production line: this equipment is the production equipment of various sugar core sugar row. The whole production line mainly includes: sugar boiling unit, roller granulator, leveling machine, cold air duct, cutting machine, etc. The device is fully automatic and continuous production with high output and advanced technology. Matched with chocolate coating machine, it can produce all kinds of chocolate products. The sugar bar coating production line is the production equipment for producing all kinds of sugar core coated chocolate at present, which transforms the traditional sugar core secondary processing and garment making process into full-automatic continuous production. In this way, the output can be increased, and the cumbersome production process of some sugar cores can also be reduced.