EP 1068059 A1 20010117 - APPARATUS FOR MANUFACTURING THERMOPLASTIC RESIN FOAM PELLETS
Title (en)
APPARATUS FOR MANUFACTURING THERMOPLASTIC RESIN FOAM PELLETS
Title (de)
GERÄT ZUM HERSTELLEN VON PELLETS AUS THERMOPLASTISCHEM HARZSCHAUM
Title (fr)
APPAREIL DESTINE A LA FABRICATION DE GRANULES EN MOUSSE DE RESINE THERMOPLASTIQUE
Publication
Application
Priority
- KR 0000066 W 20000128
- KR 19990002710 A 19990128
- KR 19990027531 A 19990708
Abstract (en)
[origin: WO0044542A1] An apparatus for manufacturing thermoplastic resin foam pellets is disclosed. This apparatus continuously produces desired thermoplastic resin foam pellets from a high viscosity thermoplastic resin in commercial quantity. The apparatus includes a hollow cylindrical die (11) having a plurality of radial extrusion ports (23) at its outlet end portion. A torpedo (17) is axially set within the die (11) to form a resin passage within the die. In an embodiment, the cutting means consists of motor-driven steel wires (30) spirally extending along the rounded external surface of the die (11) at a position around the radial extrusion ports (23) while coming into close contact with the rounded external surface of the die. In another embodiment, the cutting means consists of motor-driven movable rods (5) axially arranged inside the die (1) to be axially reciprocable along the die, with a plurality of pairs of holes (6a, 6b) being formed on each of the movable rods (5) so that they each alternately communicate with one of two neighboring radial extrusion ports (4) in accordance with an axial reciprocating action of each movable rod (5).
IPC 1-7
IPC 8 full level
B29B 9/06 (2006.01); B29K 101/12 (2006.01); B29K 105/04 (2006.01)
CPC (source: EP)
B29B 9/06 (2013.01)
Citation (search report)
See references of WO 0044542A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0044542 A1 20000803; AU 2330300 A 20000818; AU 736666 B2 20010802; CA 2326145 A1 20000803; CN 1293609 A 20010502; EP 1068059 A1 20010117; JP 2002535175 A 20021022
DOCDB simple family (application)
KR 0000066 W 20000128; AU 2330300 A 20000128; CA 2326145 A 20000128; CN 00800077 A 20000128; EP 00902184 A 20000128; JP 2000595825 A 20000128