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Polymer melt shear vibration extrusion molding device

A technology of shear vibration and extrusion molding, which is applied in the field of polymer extrusion molding processing devices, can solve the problems of unsatisfactory ultrasonic vibration and the decline of mechanical properties of ultrasonic treatment, so as to improve production efficiency, avoid mechanical degradation, and change flow Effects of Denaturation and Condensed Matter Structure

Active Publication Date: 2013-12-04
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, ultrasonic vibration is not ideal in improving the mechanical properties of products, and even in some cases, the mechanical properties of ultrasonic treatment have declined for a long time (FridmanMLPeshkovskySLVinogradovGV.Therheologyofthermoplasticsunderconditionsofspiralflowandvibrationsonextrusion.Polym.Eng.Sci.198121(12):755.)

Method used

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  • Polymer melt shear vibration extrusion molding device
  • Polymer melt shear vibration extrusion molding device
  • Polymer melt shear vibration extrusion molding device

Examples

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Embodiment

[0041] Such as figure 1 , 2 As shown, the polymer melt shear vibration extrusion molding device provided in this embodiment includes an extruder 13, an extruder head 1 connected to the extruder through a flange, a die 12, a calibrating die 14, Cooling water tank 15, traction device 16, cutting device 17 and the crank connecting rod shear vibration system 18 and the melt channel vibration cavity 2 in the extruder head 1 that are arranged on the extrusion head 1, wherein the crank connecting rod shear The cutting vibration system is composed of a crank connecting rod mechanism and a reciprocating vibration rod 3 .

[0042] The crank-link mechanism is composed of a continuously variable speed motor 4, a shaft coupling 5, a crank 6, a connecting rod 7 and a piston 8. The continuously variable speed motor 4 is connected with the crank 6 through a shaft coupling 5, and one end of the connecting rod 7 is connected through a connecting rod 7. The rod cover and the bolt are connected...

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Abstract

The invention provides a polymer melt shear vibration extrusion molding device which comprises an extruding machine 13, an extrusion head 1 connected with the extruding machine through a flange plate, a mouth mould 12, a stock mould 14, a cooling water tank 15, a traction device 16 and a cutting device 17, and is characterized by further comprising a crank connecting rod shear vibration system 18 and a melt runner vibration chamber 2, wherein the crank connecting rod shear vibration system 18 is arranged above the extrusion head 1; the melt runner vibration chamber 2 is arranged inside the extrusion head 1; the crank connecting rod shear vibration system is composed of a crank connecting rod mechanism and a reciprocating vibration rod 3; the reciprocating vibration rod 3 is positioned in a through hole 9 formed in the extrusion head 1; the through hole 9 is communicated with the melt runner vibration chamber 2. The device provided by the invention not only can simultaneously promote polymer molecule chain orientation, shish-kebab structure generation and polymer crystalline grain refinement, and improve mechanical property of products, but also can reduce extrusion resistance and improve production efficiency.

Description

technical field [0001] The invention belongs to the technical field of polymer extrusion molding processing devices, in particular to a crank-connecting rod type polymer melt shear vibration extrusion molding device. Background technique [0002] Polymer melt vibration molding processing technology refers to the technology of applying a vibration field during the molding process to affect the rheological properties and condensed state structure of polymer melt. This technology can not only effectively promote the disentanglement of polymer molecules, reduce the viscosity of the polymer melt, improve the fluidity of the melt, thereby improving the melt breakage during extrusion and the degree of polymer extrusion swelling, and improving the extrusion process. It can improve the yield and quality, and at the same time, it can refine the grain size of the extrudate and improve the thermal stability. [0003] At present, there have been some reports on the research on the proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/38B29C47/58B29C48/395B29C48/50
CPCB29C48/395Y02P70/10
Inventor 高雪芹杨其安方振王中武申开智
Owner SICHUAN UNIV
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