Title:
FEEDER APPARATUS USING RESIDUAL HEAT FROM MATERIAL INLET/OUTLET OF SECOND-ORDER SCREW EXTRUDER FOR PREHEATING FEED FIBER
Document Type and Number:
WIPO Patent Application WO/2012/136142
Kind Code:
A1
Abstract:
Feeder apparatus using residual heat from a material inlet/outlet of a second-order screw extruder for preheating a feed fiber, for use in extrusion molding of a direct in-line long fiber reinforced thermoplastic composite material. A molten material extruded from an extrusion die (11) of a first-order screw extruder (1) and cut fibers formed by cutting a continuous fiber via a cutting roller are both fed into a material inlet (31) of the second-order screw extruder (3). The apparatus is characterized in that: the feeder apparatus is a blower rectifier preheating feeder tube (6) arranged under the fiber cutting roller (7), the feeder tube is passed through the material inlet (31) of the second-order screw extruder (3), the extrusion die (11) of the first-order screw extruder (1) is in communication with the feeder tube (6), and residual heat from the second-order screw extruder (3) is discharged into the feeder tube (6). The apparatus has the advantages of: lowered investment by obviating the need for an electric preheating roller apparatus, energy conservation by utilizing fully the residual heat, rapid fiber moisture evaporation by convective thermal contact between hot air and the fiber, simplified technique, reduced occurrence of a "bridging" phenomenon, facilitated mixture of the fiber and the molten material, and thus improved product strength and quality.
Inventors:
LI LIANGGUANG (CN)
JIANG DINGFENG (CN)
JIANG DINGFENG (CN)
Application Number:
PCT/CN2012/073559
Publication Date:
October 11, 2012
Filing Date:
April 06, 2012
Export Citation:
Assignee:
FUJIAN HAIYUAN AUTOM EQUIP CO LTD (CN)
LI LIANGGUANG (CN)
JIANG DINGFENG (CN)
LI LIANGGUANG (CN)
JIANG DINGFENG (CN)
International Classes:
B29B7/46; B29B7/82; B29B7/90; B29C48/09; B29C48/38; B29C48/385; B29C48/40; B29C48/793
Foreign References:
| CN101935420A | 2011-01-05 | |||
| US3263278A | 1966-08-02 | |||
| US5750158A | 1998-05-12 | |||
| CN102179915A | 2011-09-14 | |||
| CN2032938U | 1989-02-22 |
Attorney, Agent or Firm:
ZHANHUI PATENT AGENCY FUZHOU (CN)
福州展晖专利事务所 (CN)
福州展晖专利事务所 (CN)
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Claims: