Princip for kontra roterende tvillingskrueekstruder

2021-06-07

Twin skrueekstruder har egenskaberne tvungen transport, kort opholdstid, god udstødningsevne, ensartet blanding og lav effekt. Dobbeltskrueekstruder består hovedsageligt af to indbyrdes maskerende skruer, der roterer i tønden, hvilket tvinger materialet til at skære og bevæge sig fremad.


Nedenfor er analysen af ​​arbejdsprincippet for kontrast-dobbeltskrueekstruderen:

 

De to skruer roterer i modsat retning, hvor der er to tilfælde: intern rotation og udadgående rotation. Situationen med indadgående rotation er forholdsvis lille til indretning af de to skrueekstruder med den modsatte retning. Dette er hovedsageligt fordi af, if the thread af the feeding section is not fully meshed and not fully closed in the longitudinal and horizontal direction, the material is easy to form a pile between the radial clearance af the two screws and above the two screws, thus reducing the free space af the screw groove, and finally affecting the ability af the screw to accept the material from the feeder, not only affects the feeding performance af the screw groove, but also forms a bridge. Secondly, the material with radial clearance af two screws is rotated inward, and the reaction force will press the two screws towards the cylinder wall on both sides, which will accelerate the wear af screw and barrel. In the same way, the two screws af non meshing and non engaging two-screw extruder are inward rotating.

 

From the appearance, the thread direction af the two opposite rotating screws is opposite, one is left-handed, the other is right-handed, but they are symmetrical. When the material falls on the screw, it will quickly separate to both sides, fill the screw groove, transport forward, and quickly contact with the heat cylinder to absorb heat, which helps to heat and melt the material.

Ovenfor erthe analysis af the working principle af the counter twin-screw extruder. If you need some help, welcome to contact us. Ningbo Fangli Technology Co., Ltd., as a manufacturer with a complete set af extruder production line equipment for nearly 30 years, we have a lot af equipment manufacturing experience. We will provide you with prafessional technical guidance, and give you some help af purchasing appropriate plastic extruder equipment.


https://www.fangliextru.com/counter-rotating-parallel-twin-screw-extruder.html

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