Multi-groove screw

• Main Authors: JIAO ZHENGKANG, CHE XUAN, XIA HONGLIN, YANG KUN
• Format: Patent
• Language: Chinese; English
• Published: 18.12.2020
• Subjects: FOODS OR FOODSTUFFS; HUMAN NECESSITIES; SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY ASINGLE OTHER SUBCLASS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES

The utility model discloses a multi-groove screw in the field of extruding and bulking machines, which comprises a screw body, a spiral blade is arranged on the periphery of the screw body, a plurality of shearing grooves are arranged on the spiral blade at intervals along the circumferential direction, and the spiral blade comprises a plurality of branch blades which are sequentially arranged along the axial direction of the screw body. The shearing groove comprises a plurality of unit grooves formed in the corresponding branch blades respectively, an installation groove allowing the main shaft to be inserted in is formed in the screw in the axial direction, a tooth-shaped groove is formed in the peripheral edge of the installation groove, the tooth-shaped groove comprises a plurality ofsplit grooves formed in the periphery of the installation groove at equal intervals, and the installation groove corresponds to the main shaft. The shearing force of the screw in the extrusion bulkingmachine can be increased,