CN101760811B - Seed cotton foreign fiber cleaning machine - Google Patents

Abstract

The invention relates to a seed cotton foreign fiber cleaning machine for separating and removing a foreign fiber in a machine picked seed cotton processing link. The machine comprises a machine cavity and a stand, wherein the upper part of the machine cavity is provided with a foreign fiber outlet and a charge opening, and the lower part is provided with a discharge opening. The seed cotton foreign fiber cleaning machine is characterized in that a mesh-shaped large roller and a mesh-shaped small roller are transversely arranged in the machine cavity; the mesh-shaped large roller and the mesh-shaped small roller are adjacent and have a same rotating direction; and the discharge opening is provided with a discharge air stopping device. The invention has simple structure and low manufacture cost, is difficult to cause the damage to a seed cotton fiber in the use process, is convenient and practical, and can effectively remove lightweight foreign fibers, such as mulching films, and the like in the machine picked seed cotton.

Description

Seed cotton foreign fiber cleaning machine

Technical field:

The invention relates to a seed cotton foreign fiber cleaning machine for separating and removing foreign fibers in the machine-harvested seed cotton processing link.

Background technique:

Foreign fibers in cotton refer to non-cotton fibers that are mixed into cotton during the production, processing and circulation of seed cotton and have a serious impact on the quality of cotton and its products, such as chemical fibers, hair, silk, plastic film (rope), dyed thread (rope, cloth), etc., colored fibers, chemical fibers, and hair are commonly known as "three silks". Foreign fibers mixed into seed cotton are easily broken into scattered single fibers, which are difficult to remove in textile processing. During spinning, scattered single fibers are easy to break the cotton yarn and reduce production efficiency; during weaving, it affects the quality of the cloth surface; during dyeing, due to different coloring, it affects the appearance, causing great harm to the quality of cotton yarn and cloth surface. When printing and dyeing cotton cloth and cotton yarn, the coloring rate of cotton fibers and foreign fibers is inconsistent, resulting in obvious "defects" and stains when dyeing cotton fabrics, resulting in a large number of defective products, directly affecting the normal production order and foreign trade exports.

Due to the special plastic film cultivation mode in Xinjiang, a large amount of plastic film is entangled and mixed in during machine harvesting. A large amount of residual mulch is mixed in, which is one of the main factors that lead to the excessive foreign fiber content of machine-harvested seed cotton and the decline of quality grade. With the increasing area of machine-picked cotton year by year, the quality of machine-picked cotton processing needs to be improved urgently. Existing cleaning equipment for organic cotton harvesting cannot effectively remove foreign fibers such as residual film. At the same time, after multiple cleaning processes, the residual film is broken and mixed into lint, which makes it more difficult for subsequent textile enterprises to remove impurities.

From the domestic and foreign products that appear on the market at present, the research on the separation and treatment of foreign fibers in cotton is mainly concentrated in the process of opening and cleaning lint in the textile industry after ginning, such as the winnowing type multi-stage seed cotton disclosed in Chinese Patent No. 97241543.2 Cleaning machine, the Chinese patent No. 200520144106.5 discloses a seed cotton cleaning machine with a function of rejection. The mechanical structure is relatively complicated. There are few reports on the sorting of foreign fibers such as residual film. At present, most of the residual film sorting of machine-picked seed cotton is carried out manually, which is labor-intensive, time-consuming, and labor-intensive. At the same time, it seriously hinders the promotion process of machine-picked cotton technology. The structure of the cleaning machine currently used is complex, which increases the manufacturing cost, and most of them use rotary screen or cyclone seed cotton separators. In the actual use process, there are disadvantages such as damage to cotton fibers and easy formation of sliver.

Invention content:

The technical problem to be solved by the present invention is to provide a seed cotton foreign fiber cleaning machine that is simple in structure, easy to use, not easy to cause damage to seed cotton fibers, and can effectively remove light foreign fibers such as mulch in machine-harvested seed cotton.

The seed cotton foreign fiber cleaning machine includes a machine cavity 2 and a frame 4. The upper part of the machine cavity 2 is provided with a foreign fiber outlet 1 and a feed port 3, and the lower part is provided with a discharge port 6. It is characterized in that the machine cavity 2 The large netted drum 9 and the small netted drum 10 are arranged horizontally in the interior, the large netted drum 9 and the small netted drum 10 are arranged adjacently, and their rotation direction is the same. Material locker 5.

The outside of the machine cavity 2 is provided with a motor 7, and the motor 7 is connected with the large mesh drum 9 and the small mesh drum 10 through a transmission device.

The transmission device is a belt transmission, and may also be a chain transmission.

The working process is as follows:

When the seed cotton with foreign fibers is blown to the mesh drum under the action of wind force, using the difference in pressure difference between the two on the mesh drum with a certain aperture, the foreign fibers such as the mulch are pressed tightly on the mesh drum. On the top, with the rotation of the mesh drum, it passes through the mesh gap between the large mesh drum and the small mesh drum, and is blown out from the upper foreign fiber outlet by the wind, and most of the seed cotton is output from the outlet under the action of gravity. A small part is brought to the top and peeled off by the small mesh rollers rotating in the same direction. Under the action of the air flow field, the cotton mixed with a small amount of foreign fibers enters a circulating fluidized state in the machine cavity, so that the two are further separated. The fiber is output from the foreign fiber outlet at the upper end, and the seed cotton accumulated to a certain extent after separation is output from the outlet at the lower end under the action of gravity.

The invention utilizes the positive and negative pressure difference technology of the drum: when the air flow brings the material into the machine cavity from the feed port, the seed cotton with foreign fibers is blown to the outer surface of the mesh drum under the action of wind force, due to the cotton and The specific surface area of the residual film is different, and a positive and negative pressure difference is generated on the inner and outer surfaces of the mesh drum, and because the porosity of the seed cotton and the residual film is different, the residual film is attached to the mesh drum and moves upward with the rotation of the mesh drum, while the seed cotton moves upward from the mesh drum. The surface of the mesh drum falls off and moves downward, and the two are effectively separated under the action of airflow.

Compared with the prior art, the invention has simple structure, low manufacturing cost, is not easy to cause damage to the seed cotton fibers during use, is convenient and practical, and can effectively remove light foreign fibers such as mulch in machine-harvested seed cotton.

Description of drawings:

FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

Fig. 2 is a structural schematic view of the large mesh drum in Fig. 1 viewed from above.

As shown in the figure, 1 is the foreign fiber outlet, 2 is the machine cavity, 3 is the feeding port, 4 is the frame, 5 is the unloading air locker, 6 is the discharge port, 7 is the motor, 8 is the transmission belt, 9 is a large reticulated cylinder, and 10 is a small reticulated cylinder.

Detailed ways:

Example 1:

With reference to accompanying drawing 1, Fig. 2, present embodiment comprises machine chamber body 2, frame 4, machine chamber body 2 upper part is provided with foreign fiber outlet 1, feed port 3, bottom is provided with discharge port 6, machine chamber body 2 The large netted drum 9 and the small netted drum 10 are arranged horizontally in the interior. The large netted drum 9 and the small netted drum 10 are arranged adjacently, and their directions of rotation are the same. The small netted drum 10 is located on the large netted drum. 9, obliquely above the right side, a discharge air locker 5 is provided at the discharge port 6.

The frame 4 outside the machine cavity 2 is fixedly provided with a motor 7, and the motor 7, the large mesh drum 9 and the small mesh drum 10 are driven by a belt.

The large mesh cylinder 9 and the small mesh cylinder 10 are all made of screen cloth. Motor 7 is variable frequency speed regulation.

Example 2:

Compared with Embodiment 1, the difference of this embodiment is that the motor 7 and the large mesh drum 9 and the small mesh drum 10 are driven by a chain.

Claims (4)

1. seed-wool foreign fiber cleaning machine, comprise machine cavity (2), frame (4), machine cavity (2) top is provided with different fine outlet (1), charging aperture (3), the bottom is provided with discharging opening (6), it is characterized in that laterally being provided with in the machine cavity (2) netted swift (9), netted doffer (10), netted swift (9) is adjacent setting with netted doffer (10), and their rotation direction is identical, locates to be provided with discharging wind stopping device (5) at described discharging opening (6).

2. seed-wool foreign fiber cleaning machine as claimed in claim 1 is characterized in that described machine cavity (2) outside is provided with motor (7), and described motor (7) is connected by transmission device with netted swift (9), netted doffer (10).

3. seed-wool foreign fiber cleaning machine as claimed in claim 2 is characterized in that described transmission device is a belt transmission.

4. seed-wool foreign fiber cleaning machine as claimed in claim 2 is characterized in that described transmission device is the chain transmission.

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