Structure of homonymous parallel double-screw-rod extrusion machine

Abstract

The invention discloses a structure of a homonymous parallel double-screw-rod extrusion machine. The structure comprises a base. A cylinder assembly is installed above the base and comprises an opening cylinder, a closing cylinder, a side feeding cylinder and an extruding cylinder. The cylinders are located through locating pins and connected through connecting bolts. The cylinder assembly is connected with a gear speed reduction box through a cylinder connecting body. The gear speed reduction box is installed above the base. An input shaft of the gear speed reduction box is connected with anoutput shaft of a motor through a coupling joint. Two screw rod assemblies are installed in the cylinder assembly. Replaceable thread sleeves and engagement blocks are installed on screw rod core shafts of the screw rod assemblies. The rear ends of the screw rod core shafts are connected with two output shafts of the gear speed reduction box through a spline sleeve assembly. The structure is convenient to assemble and disassemble, main parts of the cylinder assembly and the screw rod assemblies are good in interchangeability, combining and installing positions of the main parts can be changedaccording to the requirement of the technology process of modification, aggregation, reaction and extrusion of a high-molecular polymer material, and the purpose of improving the task performance andenterprise production benefits is achieved.

Description

technical field [0001] The invention relates to the structure of a co-rotating parallel twin-screw extruder. Background technique [0002] The co-rotating parallel twin-screw extruder is one of the main equipment for the blending modification and extrusion molding of polymer materials. The co-rotating parallel twin-screw extruder is widely used in the plastics and rubber industries, and is used in high The process of modification, polymerization, reaction and extrusion of molecular polymer materials. In order to make the co-rotating parallel twin-screw extruder meet the process requirements of modification, polymerization, reaction and extrusion of various polymer materials, it is necessary for its structure to be firm and simple, easy to install, assemble, overhaul and replace parts. Good interchangeability; the structural design of the co-rotating parallel twin-screw extruder directly affects its working efficiency and the production efficiency of the enterprise. With th...

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Problems solved by technology

[0003] The structure of the co-rotating parallel twin-screw extruder currently used has not been improved for a long time due to the backwardness of domestic design means and the inability to invest enough funds in product development. The operation process of installation, assembly and maintenance is longer, which makes the production efficiency low, so that the production cost remains high

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