A two-way section feeding automatic flax scraping machine

Abstract

The invention discloses a bidirectional sectional feeding automatic fiber extractor, which comprises a rack, a main fiber clamping wheel, a front fiber clamping wheel, a rear fiber clamping wheel, an O-shaped fiber clamping belt, a tapered cutter wheel, a concave retainer plate, a front roller, a rear roller, a conveyor belt, a clamping stick, a cylindrical cutter wheel and an arc-shaped bracing plate, wherein the main fiber clamping wheel is arranged on the rack, the front and rear fiber clamping wheels are axially arranged on the lower side of the main fiber clamping wheel in parallel, the O-shaped fiber clamping belt is tensioned around the lower sides of the front and rear fiber clamping wheels and the main fiber clamping wheel, the tapered cutter wheel is located on the lateral side of a lower rim of the main fiber clamping wheel and arranged on the rack, the concave retainer plate is located on the lower sides of the tapered cutter wheel and the main fiber clamping wheel, the front and rear rollers are located on the lateral rear side of the main fiber clamping wheel and arranged on the rack, the conveyor belt is wound around the front and rear rollers, the clamping stick is elastically arranged above the rear roller, the cylindrical cutter wheel is located on the rear side of the rear roller and arranged on the rack, and the arc-shaped bracing plate is arranged at a position close to the rear roller and on the lower side of the cylindrical cutter wheel. During one fiber discharge, pineapple leaves are respectively gradually subjected to a fiber extracting operation in two sections in the process of clamped transferring, and the fiber extracting force exerted on each pineapple leaf is parallel to the length direction of the pineapple leaf, so that fibers are not easy to break, each leaf is omni-directionally sufficiently scraped, and therefore, the fibers are good in quality, and high in extraction ratio and productivity.

Description

technical field [0001] The invention relates to a hemp scraper, in particular to an automatic bidirectional segmental feeding hemp scraper. Background technique [0002] Pineapple leaf fiber not only has the advantages of hemp, such as moisture absorption and breathability, strong moisture resistance, smoothness and softness, no tendency to shrink, easy drying and no close-fitting, etc., but also has a strong natural bactericidal effect because it contains natural bactericidal and bacteriostatic substances. , antibacterial function, and suitable for making socks, underwear, shirts, T-shirts, bedding and decorative fabrics, etc. Therefore, pineapple leaf fiber is a natural health care textile material with high development and utilization value. [0003] In 2012, the national pineapple area was about 880,000 mu. The general planting cycle is two years, and about half of it is eliminated each year, which is about 440,000 mu. According to measurements, pineapple leaves can ext...

AI Technical Summary

Problems solved by technology

After half of the pineapple leaf is processed, the fiber will be clamped by the hemp clamping mechanism, and the other half of the fiber will be suspended and fed to the rear hemp scraping mechanism along the axial direction of the cutter wheel. Because the fiber is soft, the strength is small, the stiffness is small, and the shape of the blade is curved. Light weight, easily affected by the rotating air flow of the cutter wheel, the lower end of the blade is often inclined to the rear, and it is easy to be dragged from the top surface of the concave plate and cannot enter the scraping mechanism for processing, or the fiber end of the blade is in front and has been fed into the depth of the scraping mechanism , the other end was suddenly contacted by the cutter wheel, and the entire blade was hit horizontally by multiple blades at the same time. A small part is delayed in contact with the cutter wheel, so the scraping time is short, and the scraping is not sufficient and the removal of impurities is not clean

[0009] The single-knife wheel hemp scraping machine divides the pineapple leaves into two sections, which are processed twice by one knife wheel. The working principle is similar to that of the semi-automatic sisal hemp scraping machine. However, due to its immature technology, the processed fibers contain many impurities. A small automatic pineapple hemp scraping machine disclosed in the new patent (publication number CN 201560 251. U)

When the upper end of the pineapple leaf is clamped by the lower feeding belt and the upper feeding belt, and at the same time, the lower end is clamped by the belt roller, the middle section of the pineapple leaf swings in the direction of the scraper wheel (knife wheel) with a small swing, and the impact angle (that is, the impact force and the blade The angle between the surfaces) is small, the scraper is easy to slide over the surface of the blade, the force on the blade is small and the impurity removal is not clean; in addition, the gap between the scraper and the lower scraper is large, up to 5mm, much larger than 1-2.5mm The thickness of the pineapple leaf cross-section, the tail of the pineapple leaf droops due to gravity, and when it is drawn back, it is close to the lower scraper. Due to the small scraping force and insufficient scraping, the removal of impurities is not clean

[0010] Although the combined operation machine has higher productivity, the whole pineapple leaf cannot be fully scraped in all directions, and there are many dead spots left, the impurity removal is not clean, and the extracted fiber impurities are more, so it is impossible to separate the natural cellulose fibers with practical value. It is used to make artificial fibers, and the natural bactericidal and antibacterial substances contained in it will disappear during the production process, so it cannot be used to develop high value-added functional textiles, and can only be used as a cotton substitute, but its cost is as high as 1.6 -18,000 yuan / t, much higher than cotton, so it is difficult to promote this model

[0011] It can be seen that the pineapple leaf fiber extraction technology and equipment are still quite backward, which has restricted the development and utilization of waste pineapple leaf resources, so that the current average annual development of pineapple leaves in my country is still less than one ten thousandth of the available area, seriously restricting the development of pineapple leaves. Industrialization Development of Leaf Fiber

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