APPARATUS AND METHOD FOR PROCESSING PLASTIC MATERIAL

• Main Author: MAXWELL; BRYCE
• Format: Patent
• Language: English
• Published: 04.02.1975
• 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

An apparatus and method are provided for feeding and/or processing plastic materials or polymers in the fabrication thereof in which a stationary casing is provided with a generally tubular bore having an inlet opening at one end thereof and a discharge opening at the other end thereof. A generally cylindrical rotor is mounted in the bore of the casing and cooperates therewith to define an inlet zone adjacent the inlet opening and a working zone between the inlet zone and the discharge opening of the apparatus. A stationary material advancing member is located adjacent the inlet opening of the bore and is provided with a generally helical surface facing toward the discharge opening of the bore to cooperate with the rotor as it rotates to move material from the inlet zone toward the working zone. The helical surface of the material advancing member extends throughout at least 360 DEG of the circumference of the rotor and serves to isolate the inlet zone from the discharge opening and in addition serves to aid in moving the material being processed into fabricating or forming equipment communicating with the discharge opening.