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Mixed feeding device for extrusion and dehumidification of wood and plastics

A feeding device and wood-plastic technology, which is applied in the field of feeding devices, can solve the problems of mixing technical problems such as expanding the application of wood-plastic composite materials, and achieve the effects of reducing floor space, avoiding uneven mixing, and improving quality and efficiency

Inactive Publication Date: 2011-04-06
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, wood-plastic composite materials have been gradually recognized by people, but the mixed technical problems in the processing process have become obstacles to the expansion of wood-plastic composite materials.

Method used

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  • Mixed feeding device for extrusion and dehumidification of wood and plastics
  • Mixed feeding device for extrusion and dehumidification of wood and plastics
  • Mixed feeding device for extrusion and dehumidification of wood and plastics

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Experimental program
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Embodiment Construction

[0018] The following further description with reference to the drawings does not limit the scope of the present invention.

[0019] See figure 1 with figure 2 As shown, in the barrel 5 of the feeding hopper of the wood-plastic extruder, two or more spiral trough slides 4 from top to bottom are provided, and the bottom of the spiral trough slide 4 is provided with a heating plate 11, The heating plate is controlled by a thermostat 3, which can control the heating plates 11 of multiple spiral trough slides 4 at the same time. The material is fed from the feeding port 2, and multiple feeding ports 2 can be set. The material slides down the spiral trough 10, and while it slides, since the heating plate 11 is working under temperature control conditions, the material on it is sliding at the same time It is heated, dehumidified and dried. When the two materials fall from the top to the bottom, they enter the mixing chamber 7. The mixing shaft 6 of the mixing chamber 7 drives the mixi...

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Abstract

The invention relates to a mixed feeding device for extrusion and dehumidification of wood and plastics. The feeding device comprises a barrel body, a cover plate and a stirring and mixing chamber, wherein the barrel body is cylindrical; the cover plate is arranged on the upper surface of the barrel body; the cover plate is provided with a motor; the stirring and mixing chamber is arranged at thebottom in the barrel body; a stirring blade is arranged in the stirring and mixing chamber; a stirring shaft is arranged between the stirring blade and the motor; a spiral trough chute is formed between the cover plate and the stirring and mixing chamber; and the upper end of the spiral trough chute is connected with a feeding hole, and the lower end of the spiral trough chute is arranged on the upper part of the stirring and mixing chamber. The feeding device can simultaneously dehumidify and mix the wood and the plastics and prevent feeding jam in the feeding process, so that the feeding device not only can improve the quality efficiency of feeding, but also can overcome the defects of nonuniform mixing inside an extruder at the same time.

Description

Technical field [0001] The invention relates to a feeding device, in particular to a wood-plastic extrusion and dehumidification mixed feeding device. Background technique [0002] In the extrusion or injection process of plastic and its wood-plastic products, the material needs to be added to the plasticizing device of the extruder through a feeding hopper during plasticization. Due to the large friction coefficient of wood-plastic raw materials, feeding often occurs during the feeding process. The phenomenon of material blocking, and the material is placed for a long time, it is easy to absorb moisture, and the material is entrained in moisture, so it needs to be dried before processing, otherwise it will produce bubbles during the processing. In addition, for wood-plastic extrusion, its mixing Uniformity is very important, but the mixing efficiency in the plasticizing device is very low due to the small space and large friction coefficient of the material. The above condition...

Claims

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Application Information

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IPC IPC(8): B29C47/10B29C45/18
Inventor 唐跃唐量
Owner QINGDAO UNIV OF SCI & TECH
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