Balanced type triple-screw vibrating force field reinforced plasticizing mixing extrusion method and equipment

A vibration force field, mixing extrusion technology, applied in the field of balanced three-screw vibration force field strengthening plasticization mixing extrusion method and equipment, can solve the problem that the periodic change of the axial meshing tooth gap cannot be realized, the plasticization mixing It is difficult to improve the refining effect, and there is no breakthrough in the mechanism of plasticization and mixing, so as to achieve the effects of reducing external heating power consumption, increasing thermal kinetic energy, and increasing fluidity.

CN105856530AActive Publication Date: 2016-08-17SOUTH CHINA UNIV OF TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-08-17

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Abstract

The invention discloses balanced type triple-screw vibrating force field reinforced plasticizing mixing extrusion method and equipment. According to the method, an axial vibrating force field is added on a main screw of a triple-screw system, meanwhile, a bidirectional feeding manner is adopted, so that when the triple-screw system rotates, the main screw axially vibrates, and the material suffers from the shearing action and the axial vibrating extrusion grinding action at the same time in the triple-screw system, and thus increasing the mixing effect of the material. The equipment comprises a hydraulic excitation device, a triple-screw system, a measuring and control device, a driving motor and feeding hoppers, wherein two ends of the triple-screw system are respectively provided with the feeding hoppers, two ends of the main screw of the triple-screw system are respectively connected with the hydraulic excitation device and the driving motor, the measuring and control device is arranged at one side of the triple-screw system, and the driving motor and the hydraulic excitation device are respectively in electric connection with the measuring and control device. According to the invention, a conventional plasticizing mixing method is broken through, the vibrating force field is increased, and the plasticizing mixing effect of the material during conveying can be enhanced; and since bidirectional feeding is adopted, the axial resistance of the vibrating force field is eliminated.
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Description

technical field

[0001] The invention relates to the technical field of polymer molding, in particular to a balanced three-screw vibration field-enhanced plasticizing mixing extrusion method and equipment. Background technique

[0002] In recent years, the plastics industry has developed towards high quality, high performance, and low cost. Correspondingly, it is necessary to develop screw extruders with high efficiency, energy saving, and strong material adaptability. Mixing extruders include single-screw, twin-screw and multi-screw, and three-screw extruder is a new type of plastic modification mixing extrusion equipment.

[0003] The utility model patent with publication number CN203919658U discloses a three-screw extruder. In this extruder, three screws are composed of a long screw and two short screws. The front half of the long screw is in the feeding barrel, and the long screw The second half is in the extrusion barrel, the first short screw and the second short screw...

Examples

Embodiment 1

[0038] In this embodiment, a balanced three-screw vibration force field reinforced plasticizing mixing extrusion equipment, such as figure 1 As shown, it includes a hydraulic vibration excitation device 1, a three-screw system 5, a measurement and control device 4, a drive motor 3, and a feeding hopper 2. The two ends of the three-screw system are respectively provided with a feeding hopper, and the two ends of the main screw of the three-screw system are respectively connected to the hydraulic vibration excitation device. The device is connected with the drive motor, the measurement and control device is arranged on one side of the three-screw system, and the drive motor and the hydraulic vibration excitation device are respectively electrically connected with the measurement and control device. Its working process is: under the control of the measurement and control device, the drive motor drives the three-screw system to rotate, the hydraulic vibration device provides an axi...

Embodiment 2

[0053] This embodiment is a balanced three-screw vibration force field reinforced plasticizing mixing extrusion equipment. Compared with Embodiment 1, the difference is that in the three-screw system, each screw is a structural form composed of kneading block elements ,Such as Figure 7 As shown, there is an axial gap m between the kneading block on the main screw and the meshing kneading block on the auxiliary screw, and the width of the axial gap is greater than the maximum amplitude h when the main screw vibrates axially.