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Bast fiber separating device

A bast fiber and separation device technology, applied in the directions of fiber mechanical separation, fiber processing, textile and papermaking, etc., can solve the problems of large fiber loss, high labor intensity, and reduced fiber strength, and achieve the effect of uniform skin and bone separation.

Inactive Publication Date: 2012-07-18
INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Extrusion and scraping methods have problems such as large fiber loss, reduced fiber strength, and high labor intensity.

Method used

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  • Bast fiber separating device
  • Bast fiber separating device
  • Bast fiber separating device

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Embodiment Construction

[0014] The following are preferred embodiments of the present invention.

[0015] Such as Figure 1-Figure 4 Shown, the hemp class bast fiber separation device provided by the present invention is installed on the frame, and it mainly comprises rolling roller 4 and rubbing roller 5, and rubbing roller 4 is positioned at the back of rolling roller 5, and their outer diameters are equal, The rolling roller 4 and the kneading roller 5 are all arranged in pairs up and down, and each pair of rollers has the same structure and meshes with each other. There are two pairs of rolling rollers 4 and rubbing rollers 5, and rolling rollers 4 are arranged at the inlet end of the hemp stem 1, and their surfaces are axially evenly distributed with twelve semicircular grid bars 6, and the upper and lower rolling rollers 4 The meshing gap between them is 8 mm, and the surface of the kneading roller 5 is evenly distributed along the axial direction with twelve flat racks 7 arranged in a spiral ...

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Abstract

The invention discloses a bast fiber separating device, which comprises grinding rollers and kneading rollers positioned behind the grinding rollers. The outer diameter of each grinding roller is equal to that of each kneading roller, the grinding rollers and the kneading rollers are respectively vertically aligned pairwise, and the rollers in each pair are the same in structure and are engaged with each other. Semicircular grid bars on the surfaces of the grinding rollers are used for evenly grinding sticks of hemp stems, so that the sticks are primarily separated from bast fibers. Spirally arranged racks on the surfaces of the kneading rollers are used for kneading while further grinding the hemp stems, so that the bast fibers are thoroughly separated from the sticks. As the kneading rollers and the grinding rollers have linear speed difference, both longitudinal acting force and transverse acting force are applied to the hemp stems, and skins and the sticks of the hemp stems are separated more evenly while the bast fibers are not damaged. In addition, gaps among the semicircular grid bars and gaps among the flat racks are all arc grooves, namely contact surfaces of the hemp stems and each pair of kneading rollers are smooth arc surfaces, the strength of the bast fibers cannot be reduced, and the bast fibers cannot be lost.

Description

technical field [0001] The invention relates to a separation device for hemp bast fibers such as jute, kenaf and hemp, in particular to a separation device for hemp bast fibers. Background technique [0002] Jute, kenaf, and hemp belong to bast fiber crops. The fiber obtained after degumming is a natural textile raw material. It is widely used in clothing, carpets, handbags, shoes and hats, bedding, socks, ropes, packaging materials etc. However, bast fibers of hemp are closely connected with the bone, and it is necessary to separate the bast from the bone by manual or mechanical methods. At present, the separation method of hemp bast fibers in my country is still mainly manual. The Hemp Research Institute of the Chinese Academy of Agricultural Sciences has been engaged in hemp harvesting and stripping processing machinery for more than 50 years, and has successively developed jute, kenaf, ramie, hemp and other hemp. Crop harvesting and processing machinery; some domestic s...

Claims

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Application Information

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IPC IPC(8): D01B1/22D01B1/24
Inventor 吕江南龙超海马兰何宏彬
Owner INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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