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A Meshing Shear Variable Gap Hexalobular Rotor

A variable-gap, shear-type technology, applied in the field of internal mixer rotors, can solve the problems of low carbon black dispersion vulcanized rubber tensile strength and tear strength, poor rubber agglomeration performance, and low production efficiency. The effect of lateral movement is obvious, the shear capacity is strengthened, and the contact area is increased

Active Publication Date: 2022-02-25
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has low production efficiency, poor agglomeration performance of the rubber compound, low carbon black dispersion, low tensile strength and tear strength of the vulcanized rubber, and high compression heat generation

Method used

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  • A Meshing Shear Variable Gap Hexalobular Rotor
  • A Meshing Shear Variable Gap Hexalobular Rotor
  • A Meshing Shear Variable Gap Hexalobular Rotor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]The meshing and shearing variable gap hexagonal rotor involved in this embodiment is composed of a front rotor 1 and a rear rotor 2, and the front rotor 1 and the rear rotor 2 are respectively sleeved on the screw rod 100 and then meshed; the main structure of the front rotor 1 and the rear rotor 2 have the same main structure, including the rotor body 10, the first short edge 11, the second short edge 12, the third short edge 13, the fourth short edge 14, the first long edge 15, the second long edge 16 and the back glue Thread 17; one end of the rotor body 10 is provided with a first short edge 11 and a second short edge 12 of a gradual arc structure, and the other end of the rotor body 10 is provided with a third short edge 13 and a fourth short edge of a gradual arc structure 14. The angle between the first short edge 11 and the second short edge 12 and the angle between the third short edge 13 and the fourth short edge 14 are both 180°, the first short edge 11 and the...

Embodiment 2

[0027] The meshing and shearing variable gap hexagonal rotor involved in this example is compared with the standard four-edged rotor. According to the degree of dispersion of the compounded rubber material, it is shown that the ribs of the standard four-edged rotor have a rectangular structure. If the impact force is too large, the power requirement of the main drive motor is very large, and the energy consumption is seriously wasted. Only the speed difference between the front and rear rotors is used to tear the rubber material, and the mixing of the rubber material only has the function of "stirring". There is no effect of compression and stretching; the ribs of the meshing shear type variable gap hexagonal rotor have a circular arc gradual change structure, which has little impact on the rubber material and has a pressing and kneading effect on the rubber material, which is beneficial to the mixing of the rubber material and reduces the impact on the rubber material. The pow...

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Abstract

The invention belongs to the technical field of internal mixer rotors, and relates to a meshing and shearing variable-gap hexagonal rotor, which is installed on an internal mixer and used for mastication and mixing of rubber. It consists of a rotor body and six rotor bodies. The front and rear rotors are meshed and connected by ribs and returning glue threads. When in use, the front and rear rotors are sleeved on the screw. The screw absorbs the advantages of the meshing and shearing mixing rubber, overcomes the shortcomings of each other, and strengthens the rubber in the rubber. The axial movement in the mixing chamber improves and strengthens the shear capacity between the ridge peak and the wall of the mixing chamber; with sufficient shear force, a high shear strain rate is achieved, and sufficient rubber movement ensures The uniformity of the mixing and dispersion of the rubber material is ensured. At the same time, the setting of the glue return thread can prevent the rubber material from overflowing in the internal mixer. Compared with the standard four-edged rotor, a short edge is added on one side of the front rotor and the rear rotor, which is beneficial The backflow of the rubber material makes the lateral movement of the rubber material in the mixing chamber more obvious, which is more conducive to the mixing of the rubber material.

Description

Technical field: [0001] The invention belongs to the technical field of internal mixer rotors, and in particular relates to a meshing and shearing type variable gap hexagonal rotor, which is installed on an internal mixer and used for mastication and mixing of rubber. Background technique: [0002] The closed type rubber mixer is referred to as internal mixer, also known as kneader, which is mainly used for plasticizing and mixing of rubber. Internal mixer is a kind of machine with a pair of rotors with specific shape and relative rotation, which intermittently plasticizes and kneads polymer materials in a closed state with adjustable temperature and pressure. It is mainly composed of a mixing chamber, a rotor , Rotor sealing device, feeding and pressing device, unloading device, transmission device and machine base and other parts. In 1916, the first internal mixer was born, and its mixing chamber was equipped with a pair of elliptical rotors rotating in opposite direction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29B7/20B29B7/22
CPCB29B7/20B29B7/22B29B7/183B29B7/186
Inventor 宗殿瑞边慧光焦东梅
Owner QINGDAO UNIV OF SCI & TECH
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