Parallel double-screw extruder unit

A twin-screw extruder and twin-screw extrusion technology, which is applied in the field of parallel twin-screw extruder units, can solve the problem of single material, low frequency of repeated use of materials, inability to meet the requirements of multiple raw materials and multiple forms of use, and suitable for customers. Higher requirements and other issues to achieve the effect of reducing labor intensity, reducing maintenance costs, and shortening maintenance time

Active Publication Date: 2013-08-14
青岛欣煜升新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main components of the integral twin-screw extruder and conical twin-screw extruder, that is, the screw, barrel, gearbox and other components, are no longer disassembled and reassembled during use. The frequency of repeated use is low
With the continuous development of science and technology, many emerging materials have sprung up one after another. The existing parallel twin-screw extruder with fixed form can only realize one machine and one use, and has been unable to meet the requirements of multi-raw materials and multi-forms and applicable customers. higher requirements

Method used

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Examples

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Effect test

Embodiment 1

[0022] like figure 1 As shown, the parallel twin-screw extruder unit in this embodiment includes a preheating device, a torque distributor, a gear box, an extrusion system, and a cooling device. The extrusion unit includes a barrel 1, a mandrel 2, a thread Block 3, the cylinder body 1 is a split type; the screw rod is assembled by a threaded block 3 sleeved on the mandrel 2, the threaded block 3 adopts conventional threaded elements, and the inner bushing in the cylinder body 1 and the thread The shape of the block 3 is matched; the barrel composed of the barrel 1 is a split type, which is composed of several barrels 1; the torque distributor and the gear box are also building blocks. The twin-screw extruder is changed to counter-rotating or co-rotating; the screw grooves meshing with the co-rotating twin-screw are of a non-closed structure. The screw groove advances to the narrow gap below, and after being compressed to a certain extent, another screw is held up, and is tran...

Embodiment 2

[0024] like figure 1 , 2 As shown, the thread block 3 used in the parallel twin-screw extruding unit in this embodiment is an S-shaped element with a length of 96 mm, including a preheating device, a torque distributor, a gear box, an extruding unit, and a cooling device. The discharge unit includes a barrel 1, a mandrel 2, and a threaded block 3; the screw is composed of a threaded block 3 sleeved on the mandrel 2, and the inner bushing in the barrel 1 matches the shape of the threaded block 3; The cylinder body 1 is an inlay type, which is composed of two parts, an inner and outer part, the inner part is an alloy inlaid sleeve, and the main body of the cylinder body is 38CrMoAlA. Usually, the cylinder bodies are fixed and connected by bolts, and the bolts can be disassembled one by one to be disassembled; The torque distributor and gear box are also of building block type, and the twin-screw extruder can be changed into counter-rotation or co-rotation by replacing the torqu...

Embodiment 3

[0026] like figure 1 , 3 , 4, the thread block 3 used in the parallel twin-screw extruding unit described in this embodiment is a hexagonal prism element with a length of 56 mm, and the extrusion system includes a preheating device, a torque distributor, a gear box, an extrusion unit, Cooling device, traction device, meter counter, the extrusion unit includes a barrel 1, a mandrel 2, and a threaded block 3. It is characterized in that the barrel composed of the barrel 1 is a split type, consisting of several barrels 1; the screw is composed of threaded blocks 3 sleeved on the mandrel 2, and the inner bushing in the cylinder 1 matches the shape of the threaded blocks 3; the torque distributor and the gear box are also building blocks By replacing the torque distributor, the twin-screw extruder can be changed into counter-rotation or co-rotation; the gear box is connected with the single-screw extrusion system to form a single-screw extruder.

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Abstract

In order to overcome the defects that the parallel double-screw extruder in the prior art is single and constant and can not realize multile purposes and multiple functions with one machine, the invention provides a parallel double-screw extruder unit. The parallel double-screw extruder unit is characterized in that a drum body and screws adopt a cordwood type structure respectively; each screw is formed by combining various types of thread blocks sheathed on the core shaft; and an inner bush of the drum body can be adjusted according to differences of the thread blocks, so that an ideal screw structure form is flexibly combined according to the varieties of the materials and the process requirements and the like, the contradiction that the specificity of the screws is difficultly considered is better solved, the purposes of multiple purposes and multiple functions are achieved, the materials can be better mixed and plasticized, the water and the moisture of the special materials are automatically discharged in the operating process of a main machine, and the problem that all physical performances are not stable is successfully solved.

Description

technical field [0001] The invention relates to molding processing of plastic materials, in particular to a parallel twin-screw extruder unit. Background technique [0002] With the development of the polymer processing industry, more and more and higher requirements are put forward for the molding and mixing process of polymer materials, and single-screw extruders cannot meet these requirements in some aspects. Using a single-screw extruder for filling modification and glass fiber reinforcement modification, etc., the mixing and dispersing effect is not ideal. In addition, single-screw extruders are especially not suitable for processing powdery materials. In order to meet the requirements of the mixing process in polymer processing, especially the processing of hard polyvinyl chloride powder, parallel twin-screw extruders are widely used in filling, blending, modification, reinforcement, chlorinated polyvinyl chloride, and engineering resins. Devolatilization treatment o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/40B29C47/46B29C47/60B29C47/66B29C48/57B29C48/40B29C48/455
CPCB29C48/57B29C48/40
Inventor 赵烨
Owner 青岛欣煜升新材料有限公司
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