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The respective advantage of parallel and extruder of cone-shaped double screw
From;  Author:Stand originally
Extruder of parallel double screw is good, is extruder of cone-shaped still double screw good? It is an user the question that in the choose and buy the regular meeting when double screw extruder raises.

The classification of double screw extruder
Press the direction of rotation of double screw, can be extruder cent with to with different to two kinds of extruder, with to extruder it is the direction of rotation when two screw work consistent, different to extruder it is to show the direction of rotation when two screw work is contrary.
The axes line that presses double screw is parallel, can divide two kinds of intersects with axes line extruder for axes line parallel. Axes line is double screw extruder parallelly, axes line intersects for extruder of cone-shaped double screw.

Double screw extruder still has clench the teeth and the branch that are not clench the teeth.
The same point of parallel and extruder of cone-shaped double screw: Have right plastic and compulsive the conveyer that advances ahead manages, good mixture model influences ability and dehydration ability, having pair of basic and same stock and plastic products to shape the adaptability of craft.

The different point of parallel and extruder of cone-shaped double screw
1, diameter: The diameter of parallel double screw is identical, the small end of cone-shaped double screw diameter and main aspects diameter are different.
2, homocentric be apart from: The center of smooth double screw is apart from identical, the two axes of cone-shaped double screw show included angle, the axes of dimension size edge that the center is apart from changes.
3, long way compares: Parallel double snail (L/D) be the circle outside the significant portion length that points to screw and screw than, cone-shaped double screw (L/D) of the average that is the significant portion length that points to screw and diameter of He Xiaoduan of main aspects diameter than.
Narrate from above place, what we are clear about is OK those who see parallel and extruder of cone-shaped double screw are the most remarkable is different the geometrical figure that is screw machine canister is different, cause a lot of difference on a structure and function thereby, although both characteristic is different, but have respective advantage.

Extruder of parallel double screw
Because be apart from the limitation with small size by two screw center, in transmission gear case, the space that gives the journal bearing that props up two take-off and thrust bearing and relevant drive gear is very limited, although the architect expends the brains, but the modulus of the carrying capacity of inextricability also bearing, gear, diameter the reality with the caudal small, small diameter of two screw, bring about the result that defies torsional difference. Output is twisted be apart from small, fight bear ability difference, it is the blemish with most remarkable extruder of parallel double screw. But the advantage that the plasticity that long way compares is parallel double screw, it but the basis shapes conditional difference, can increase and reduce long way to compare ask in order to get used to plastic treatment craft, the suitable scope of OK and patulous parallel double screw, but extruder of this bit of cone-shaped double screw is accomplished hard.
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