US 12,226,966 B2
Pultrusion system with cooling stage and method therefor
Louis Laberge Lebel, Montreal (CA); and Nawaf Abdulrahman Alsinani, Montreal (CA)
Assigned to POLYVALOR, LIMITED PARTNERSHIP, Montreal (CA)
Appl. No. 17/613,970
Filed by POLYVALOR, LIMITED PARTNERSHIP, Montreal (CA)
PCT Filed May 28, 2020, PCT No. PCT/CA2020/050728
§ 371(c)(1), (2) Date Nov. 24, 2021,
PCT Pub. No. WO2020/237381, PCT Pub. Date Dec. 3, 2020.
Claims priority of provisional application 62/854,612, filed on May 30, 2019.
Prior Publication US 2022/0234313 A1, Jul. 28, 2022
Int. Cl. B29C 70/52 (2006.01)
CPC B29C 70/528 (2013.01) [B29C 70/526 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for pultruding a beam comprising:
a pulling mechanism continuously pulling on a preform of yarns including a thermoplastic matrix and fibers, the pulling mechanism being downstream in the system; and
a sequence of
at least one pultrusion die having a tapering channel portion heated such that the preform is at a desired low viscosity temperature for resin in the thermoplastic matrix to impregnate the fibers,
a cooling tube at a downstream end of the pultrusion die, and
a cooling module spaced from the pultrusion die by the cooling tube, the cooling module to cool the cooling tube before the preform reaches the pulling mechanism, wherein the cooling tube defines a cooling channel, the cooling module being displaceable along the cooling tube to vary a distance between the cooling module and at the at least one pultrusion die.