Shelling device for cotton processing

By designing the screening mechanism and utilizing spiral vortex separation technology, the problem of dust and leaf residue after cotton dehulling is solved, achieving high cleanliness of the discharged cotton.

CN224092061UActive Publication Date: 2026-04-07XIANGYANG HAILIDA COTTON IND CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing cotton dehulling devices still leave dust and leaf debris on the surface of the cotton after discharge, affecting the cleanliness of the discharged material.

Method used

The screening mechanism includes a crushing roller, a high-speed fan, an air separator, a large-pore cylindrical filter screen, and an inclined fan. Dust and broken leaves are removed through spiral vortex separation.

Benefits of technology

This improves the cleanliness of the discharged cotton, ensuring that there is virtually no dust or leaf debris remaining after the cotton is dehulled.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224092061U_ABST
    Figure CN224092061U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of cotton processing, and discloses a shelling device for cotton processing, which comprises a material crushing box, a feed hopper is fixedly mounted at the top of the material crushing box, a support frame is arranged at the bottom of the material crushing box, and a screening mechanism is arranged in the material crushing box. According to the hulling device for cotton processing, by arranging the screening mechanism, when hulling is needed in cotton processing, part of cotton is put in from the top of a feeding hopper, the cotton and hulls are crushed and separated through a crushing roller, then the cotton is blown into a winnowing barrel on the right side through a high-speed fan, and the cotton hulls fall down through gravity and pass through a first inclined fan and a second inclined fan; cotton entering the winnowing barrel rotates backwards in a spiral mode, smashed leaves and dust enter the large-hole barrel-shaped filter screen and then are discharged from the air outlet pipe, monitoring of the dust monitor is little, the sealing plate is opened to enable the cotton to fall, and the screening mechanism can use spiral vortex to sort and remove most of the dust and the smashed leaves, and is beneficial to the cleanliness of the discharged cotton.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of cotton processing technology, specifically to a dehulling device for cotton processing. Background Technology

[0002] A cotton dehulling machine is a device used to remove the husks from cotton seeds. It is mainly used in agricultural production to improve the efficiency and quality of cotton processing. The cotton dehulling machine separates cotton seeds from the husks mechanically, thereby simplifying subsequent processing. Cotton dehulling machines have a wide range of applications in agricultural production. They can replace the traditional manual dehulling method, significantly improving labor productivity and reducing labor costs. With the continuous development of cotton processing, various cotton processing equipment has emerged, such as a cotton dehulling device.

[0003] A search revealed a cotton dehulling device in Chinese Utility Model Patent CN202322523551.3. To address the problem that traditional dehulling devices cannot dry cotton, the following technical solution is adopted: It includes a crushing box, a drying box connected to the bottom of the crushing box, a crushing assembly for crushing cotton hulls within the crushing box, and a drying and screening assembly within the drying box. The crushing box has a feed hopper on top and a discharge port connected to the drying box at the bottom. The drying and screening assembly includes a drying cylinder within the drying box, a heating assembly for blowing hot air, and an output shaft parallel to the axis of the drying cylinder. The device consists of a stirring motor and several stirring blades evenly distributed around the output shaft of the stirring motor in a drying cylinder. Several sieve holes are opened on the outer circumference of the drying cylinder. An input port located below the discharge port is located at the top of one end of the drying cylinder, and a discharge assembly is located at the bottom of the drying cylinder. An output port is located at the bottom of the other end of the drying cylinder. Drying is achieved through the drying cylinder and stirring blades. Although the device can achieve drying through the drying cylinder and stirring blades, the surface of the cotton after discharge still contains impurities such as dust and broken leaves after crushing. Therefore, a dehulling device for cotton processing is proposed that can use spiral vortex separation to remove most of the dust and broken leaves, which is beneficial to the cleanliness of the discharged cotton. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cotton dehulling device that can use spiral vortex sorting to remove most of the dust and broken leaves, thus improving the cleanliness of the discharged cotton. This solves the problem in the cotton dehulling device in Chinese Utility Model Patent No. CN202322523551.3, where the surface of the discharged cotton still contains impurities such as dust and broken leaves after crushing.

[0005] To achieve the above-mentioned purpose of using spiral vortex separation to remove most of the dust and broken leaves, thereby improving the cleanliness of the discharged cotton, this utility model provides the following technical solution: a dehulling device for cotton processing, including a crushing box, a feeding hopper fixedly installed on the top of the crushing box, a support frame provided at the bottom of the crushing box, and a screening mechanism provided inside the crushing box;

[0006] The screening mechanism includes a crushing roller, a high-speed fan, an air separator, a feed inlet, a large-aperture cylindrical filter, an inclined fan (first type), an air outlet pipe, an inclined fan (second type), and a controller. Two crushing rollers are installed inside the crushing box. A high-speed fan is fixedly installed inside the crushing box. An air separator is fixedly installed on the right side of the crushing box. A feed inlet is located on the left side of the air separator. A large-aperture cylindrical filter is fixedly installed inside the air separator. An inclined fan (first type) is fixedly installed inside the air separator. An air outlet pipe is fixedly connected to the back of the air separator. An inclined fan (second type) is fixedly installed inside the air separator. A controller is located at the front of the crushing box.

[0007] Furthermore, an inclined large-pore filter screen is fixedly installed inside the feed hopper, and a blower is provided on the left side of the feed hopper.

[0008] Furthermore, a cotton hull box is provided at the bottom of the crushing box, and the cotton hull box is located directly below the two crushing rollers.

[0009] Furthermore, a collection box is provided on the right side of the support frame, and the collection box is located directly below the air separator.

[0010] Furthermore, an electric telescopic rod is provided on the outside of the support frame, and a sealing plate is fixedly connected to the right side of the electric telescopic rod.

[0011] Furthermore, the bottom of the air separator is provided with a discharge port that is compatible with the sealing plate, and a dust monitor is installed inside the air separator.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] This cotton dehulling device, through the setting of a screening mechanism, starts the equipment via a controller when dehulling is required. A portion of the cotton is fed from the top of the hopper, where a crushing roller breaks and separates the cotton from the hull. A high-speed fan then blows the cotton into the air separator on the right. The hulls fall under gravity and pass through inclined fans one and two, causing the cotton inside the air separator to rotate spirally backward. Broken leaves and dust enter the large-pore cylindrical filter screen and are then discharged through the outlet pipe. The dust monitor detects minimal dust; opening the sealing plate allows the cotton to fall. This screening mechanism uses a spiral vortex separation to remove most of the dust and broken leaves, contributing to the cleanliness of the discharged cotton. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0015] Figure 2 This is a front sectional view of the structure of this utility model;

[0016] Figure 3 The structure of this utility model Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a top sectional view of the air separator structure of this utility model.

[0018] In the diagram: 1. Crusher bin; 2. Feed hopper; 3. Support frame; 4. Screening mechanism; 401. Crusher roller; 402. High-speed fan; 403. Air separator; 404. Feed inlet; 405. Large-hole cylindrical filter screen; 406. Inclined fan one; 407. Air outlet pipe; 408. Inclined fan two; 409. Controller; 5. Inclined large-hole filter screen; 6. Blower; 7. Cotton hull box; 8. Collection box; 9. Electric telescopic rod; 10. Sealing plate; 11. Discharge port; 12. Dust monitor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 In this embodiment, a cotton dehulling device includes a crushing box 1, a feeding hopper 2 fixedly installed on the top of the crushing box 1, a support frame 3 provided at the bottom of the crushing box 1, and a screening mechanism 4 provided inside the crushing box 1.

[0021] The screening mechanism 4 includes a crushing roller 401, a high-speed fan 402, an air separator 403, a feed inlet 404, a large-aperture cylindrical filter 405, a first inclined fan 406, an air outlet 407, a second inclined fan 408, and a controller 409. Two crushing rollers 401 are installed inside the crushing box 1. A high-speed fan 402 is fixedly installed inside the crushing box 1. An air separator 403 is fixedly installed on the right side of the crushing box 1. A feed inlet 404 is opened on the left side of the air separator 403. A large-aperture cylindrical filter 405 is fixedly installed inside the air separator 403. A first inclined fan 406 is fixedly installed inside the air separator 403. An air outlet 407 is fixedly connected to the back of the air separator 403. An inclined fan 408 is fixedly installed inside the air separator 403. Fan 2 408, a controller 409 is set in front of the crushed material box 1. The particle size range of large crushed leaves is usually greater than five millimeters. The aperture size of the large-pore cylindrical filter 405 in this patent is eight millimeters. Cotton balls cannot pass through the large-pore cylindrical filter 405, but large crushed leaves can enter through the large-pore cylindrical filter 405 and be discharged from the air outlet 407. The cotton balls are left inside the air separator 403 to rotate until the dust monitor 12 detects less dust, causing the sealing plate 10 to move to the left and the cotton balls to fall. The angle between the tilting fan 1 406 and the tilting fan 2 408 and the air separator 403 is thirty degrees, which allows the cotton to rotate and be sorted after entering. The air outlet 407 can discharge the crushed leaves into various storage containers prepared outside.

[0022] In the case implementation, an inclined large-hole filter screen 5 is fixedly installed inside the feed hopper 2, and a blower 6 is set on the left side of the feed hopper 2. By setting the inclined large-hole filter screen 5 and the blower 6, dust and leaf fragments can be blown away for the first time before the cotton is separated.

[0023] In the implementation of the case, an electric telescopic rod 9 is installed on the outside of the support frame 3. A sealing plate 10 is fixedly connected to the right side of the electric telescopic rod 9. By setting the electric telescopic rod 9 and the sealing plate 10, the bottom of the air separator 403 can be controlled to open at a reasonable time so that the cotton ball can fall.

[0024] In the implementation of the case, the bottom of the air separator 403 is provided with a discharge port 11 that is compatible with the sealing plate 10. The air separator 403 is equipped with a dust monitor 12, which is a laser scattering dust monitor. The laser irradiates the dust particles and calculates the concentration by the intensity of the scattered light, which is beneficial for monitoring the dust concentration.

[0025] In the implementation of the case, the controller 409 is electrically connected to all electronic components in this patent through wires, so that all electronic components in this patent can be controlled by operating the controller 409. The controller 409 is equipped with a microcontroller. Through the microcontroller (such as STM32 / Arduino) + laser scattering dust monitor (such as GP2Y1010AU0F or PMS5003), real-time monitoring of dust concentration and automatic opening of the sealing plate 10 by the electric telescopic rod 9 in the case of low dust concentration can be realized.

[0026] When implementing this procedure, please follow these steps:

[0027] 1) When cotton processing requires dehulling, start the equipment via controller 409 and feed some cotton from the top of feed hopper 2;

[0028] 2) Then the cotton and husk are crushed and separated by the crushing roller 401, and the cotton is blown into the air separator 403 on the right by the high-speed fan 402. The cotton husk falls into the cotton husk box 7 by gravity.

[0029] 3) The cotton entering the air separator 403 is then spiraled backward by the tilting fan 406 and the tilting fan 408.

[0030] 4) Finally, the broken leaves and dust enter the large-pore cylindrical filter 405 and are then discharged from the air outlet 407. The dust monitor 12 detects less dust, and the sealing plate 10 is opened to allow the cotton to fall.

[0031] In summary, this cotton dehulling device, by setting up a screening mechanism 4, starts the equipment via controller 409 when cotton dehulling is required. A portion of the cotton is fed from the top of the feed hopper 2. The crushing roller 401 crushes and separates the cotton and hulls. A high-speed fan 402 then blows the cotton into the right-side air separator 403. The hulls fall under gravity and pass through inclined fans 406 and 408, causing the cotton inside the air separator 403 to rotate spirally backward. Broken leaves and dust enter the large-pore cylindrical filter 405 and are then discharged from the outlet pipe 407. The dust monitor 12 detects minimal dust, and opening the sealing plate 10 allows the cotton to fall. This screening mechanism 4 uses spiral vortex separation to remove most of the dust and broken leaves, contributing to the cleanliness of the discharged cotton.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cotton dehulling device, comprising a crushing bin (1), characterized in that: The top of the crushing box (1) is fixedly equipped with a feeding hopper (2), the bottom of the crushing box (1) is provided with a support frame (3), and the inside of the crushing box (1) is provided with a screening mechanism (4). The screening mechanism (4) includes a crushing roller (401), a high-speed fan (402), an air separator (403), a feed inlet (404), a large-hole cylindrical filter screen (405), an inclined fan (406), an air outlet (407), an inclined fan (408), and a controller (409). Two crushing rollers (401) are installed inside the crushing box (1). A high-speed fan (402) is fixedly installed inside the crushing box (1). An air separator is fixedly installed on the right side of the crushing box (1). The air separator (403) has a feed inlet (404) on its left side, a large-hole cylindrical filter (405) is fixedly installed inside the air separator (403), an inclined fan (406) is fixedly installed inside the air separator (403), an air outlet pipe (407) is fixedly connected to the back of the air separator (403), an inclined fan (408) is fixedly installed inside the air separator (403), and a controller (409) is provided in front of the crushed material box (1).

2. The cotton dehulling device according to claim 1, characterized in that: An inclined large-hole filter screen (5) is fixedly installed inside the feed hopper (2), and a blower (6) is provided on the left side of the feed hopper (2).

3. The cotton dehulling device according to claim 1, characterized in that: The bottom of the crushing box (1) is provided with a cotton shell box (7), which is located directly below the two crushing rollers (401).

4. The cotton dehulling device according to claim 1, characterized in that: A collection box (8) is provided on the right side of the support frame (3), and the collection box (8) is located directly below the air separator (403).

5. A dehulling device for cotton processing according to claim 1, characterized in that: An electric telescopic rod (9) is provided on the outside of the support frame (3), and a sealing plate (10) is fixedly connected to the right side of the electric telescopic rod (9).

6. A cotton dehulling device according to claim 5, characterized in that: The bottom of the air separator (403) is provided with a discharge port (11) that is compatible with the sealing plate (10), and a dust monitor (12) is provided inside the air separator (403).

Citation Information

Patent Citations

  • Shelling device for cotton processing

    CN220867585U