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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: 2013-04-10
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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Effect test

Embodiment Construction

[0018] The following will be further described in conjunction with the accompanying drawings, not to limit the scope of the present invention.

[0019] see figure 1 with figure 2 As shown, in the cylinder body 5 of the feeding hopper of the wood-plastic extruder, two or more spiral trough slides 4 from top to bottom are arranged, and the bottom of the spiral trough slide 4 is provided with a heating plate 11, The heating plate is controlled by the temperature controller 3, and the temperature controller 3 can control the heating plates 11 of a plurality of spiral chute 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 along the spiral trough 10. While sliding down, because the heating plate 11 works under the condition of temperature control, the material on it slides down at the same time. Heated, dehumidified, dried. When the two materials fall from the top to the bottom, they enter t...

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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 mixing and feeding device for wood-plastic extrusion dehumidification. Background technique [0002] In the extrusion or injection process of plastics and their wood-plastic products, the material needs to be fed into the plasticizing device of the extruder through the 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 blocking the mouth of the material, and the material is easy to absorb moisture after being placed for a long time, so that the material is entrained with moisture, so it needs to be dried before processing, otherwise air bubbles will be generated during the processing. In addition, for wood-plastic extrusion, its mixing Uniformity is very important, but due to the small space and high friction coefficient of materials in the plasticizing device, the mixin...

Claims

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Application Information

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