Molding apparatus, cigarette filter rod and preparation method thereof

US12133550B2 · kind B2 · utility

Assignee

• CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD. · CN

Inventors

• Qian Chen · San Jose, US
• Yong Jin · Hunan, CN
• Ke Li · Hunan, CN
• Shitai Wang · Hunan, CN
• Chao Tan · Hunan, CN
• Saibo Yu · Hunan, CN
• Haifeng Tan · Hunan, CN
• Hongmei Fan · Shanghai, CN
• Qi Liu · New Taipei, TW

Key dates

• Filing date: Dec 14, 2018
• Grant date: Nov 5, 2024
• Expiry date: Jun 11, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65G33/24
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A molding apparatus, a cigarette filter rod and a preparation method thereof are disclosed. The molding apparatus comprises a single-screw extrusion system and a cooling setting system. The single-screw extrusion system comprises a feeder and an extruder. The feeder is arranged on the extruder. The extruder comprises a cylinder. A heater is arranged outside the cylinder. A screw is arranged inside the cylinder, and a mouth mold is arranged at one end of the cylinder. The cooling setting system comprises a round tube and a cooler. The cooler (6) is arranged outside the round tube. One end of the round tube is butted with the mouth mold of the extruder; and multiple groups of grooves are formed on threads of the head of the screw.