High-rotation-speed injection screw rod

• Main Authors: YOU QIANG, LI DAIXU, ZENG MINGHUI, YI HENGGUANG
• Format: Patent
• Language: Chinese; English
• Published: 23.05.2012
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The utility model discloses an injection screw rod for an injection molding machine. The injection screw rod comprises five functional sections such as a charging section, a compressing section, a metering section, a mixing section and a screw rod head, which are sequentially arranged. The compressing section adopts a dual-head threaded structure; the mixing section comprises a first mixing part provided with a plurality of grooves and a second mixing part provided with a plurality of convex teeth; and the maximal length of the screw rod is 32 times as long as the outer diameter of the screw rod. The compressing section adopts the dual-head threaded structure, so that a mixing homogenizing effect and a fusing plastifying effect can be enhanced, the blocking phenomenon of materials at the charging section and the compressing section of a machine cylinder can be improved, and the charging capability and the plastifying capability can be improved. The mixing section adopts the structure that the groove shapes ar