| 摘要 |
1,236,220. Extrusion machines; feeding moulds. AUST UND SCHUTTLER & CO. M.A.S. KUNSTSTOFF-MASCHINEN, G.m.b.H. 2 Oct., 1968 [5 Oct., 1967], No. 46686/68. Heading B5A. [Also in Divisions B1-B2] An extruder comprises a housing provided with a wormshaft 10 having sections 10a, 10b, 10c, the conveying rate of section 10a being greater than that of section 10c and section 10b being provided with arms or blades for mixing purposes. The extruder may be used in the manufacture of artificial wood from various fillers and binders (which may be foamable). Filler is fed through an opening adjacent the start of section 10a and binder(s) through one or more openings at the transisition region between sections 10a and 10b. Colorant may be added via line 30, or by means of a cutter wheel which dips into the colourant and transfers it to the extrudate, Fig. 5 (not shown). In a modification, Fig. 4 (not shown), the wormshaft comprises three mixing sections altemately arranged between four conveying sections. The extruder may be mounted on a bridge, Fig. 1 (not shown), under which moulds are moved.
|
