Threshing device for cotton seeds with velvet

By using a negative pressure suction and rotary delinting structure in a cottonseed delinting device, the environmental protection and efficiency issues of traditional cottonseed delinting processes are solved, achieving efficient separation and recycling of cotton lint.

CN223488712UActive Publication Date: 2025-10-31ZHEJIANG FORESTRY UNIVERSITY
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Patent Information

Application Number
CN202423099709.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-10-31
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Traditional cottonseed delinting processes consume large amounts of acid, generate waste that is not environmentally friendly, are complex and energy-intensive, and the cotton linters cannot be recycled.

Method used

The device employs a cottonseed threshing unit with lint, utilizing a negative pressure base and a rotating lint removal structure to remove cotton lint through negative pressure suction. Combined with a lint removal brush and a spiral guide plate, it achieves efficient separation and recycling of cotton lint.

Benefits of technology

It improves delinting efficiency, meets environmental protection requirements, and realizes an efficient and environmentally friendly cotton seed delinting process, allowing cotton fibers to be recycled.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a lint cotton seed threshing device which comprises a negative pressure base, the top of the negative pressure base is provided with a rotary lint removing structure, the negative pressure base is internally provided with a negative pressure lint taking structure, and the rotary lint removing structure comprises two fixing rings fixedly installed on the top of the negative pressure base. The two fixing rings are located at the ends close to the left side and the right side of the negative pressure base correspondingly. According to the threshing device for the cotton seeds with the villus, the screen drum is supported and fixed above the negative pressure base through the fixing ring, the rotating rod is supported by the 7-shaped support to rotate in the screen drum, after the cotton seeds with the villus are put, the cotton seeds can be attached to the inner wall of the screen drum under the influence of the negative pressure base, and then the motor drives the rotating rod to rotate and drives the delinting brush to sweep the inner wall of the screen drum; the cotton lint on the cotton seeds is swept away, the cotton lint outside the cotton seeds is sucked away by the negative pressure base through the screen holes, the cotton lint is affected by rotation of the delinting brush to be wound and gathered in the screen drum, and the device not only improves the delinting efficiency, but also meets the environment-friendly requirement, and achieves the efficient and environment-friendly delinting process of the cotton seeds with the lint.
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Description

Technical Field

[0001] This utility model relates to the field of cottonseed threshing technology, specifically to a cottonseed threshing device with downy fibers. Background Technology

[0002] In the field of cottonseed threshing technology, threshing of cottonseed with fibers has always been an important step. After the harvested seed cotton goes through the tying process, the cotton fibers and cottonseed will be separated. However, the tying cottonseed generally has short fibers of 6-7mm. Such cottonseed with fibers cannot be used directly as seeds and needs to be delinted.

[0003] Traditional cottonseed delinting technology has several drawbacks. A common method involves spraying cottonseed with short fibers with dilute sulfuric acid and mixing it thoroughly, then centrifuging it while simultaneously recovering the acid. The delinted cottonseed is then dried in a drying chamber, where the short fibers on its surface are carbonized. Next, it enters a friction device where the carbonized short fibers are removed. Finally, it undergoes air separation or screening to obtain cottonseed usable for seed production. However, this process consumes a large amount of acid, generates waste that is environmentally unfriendly, and the short fibers on the cottonseed cannot be recycled. Furthermore, the processing involves numerous steps, and the drying process is energy-intensive. Therefore, a cottonseed delinting device with short fibers is proposed to address these issues. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a cottonseed threshing device with lint to overcome the above-mentioned shortcomings of the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A cottonseed threshing device with fluff includes a negative pressure base, a rotating delinting structure on the top of the negative pressure base, and a negative pressure fluff removal structure inside the negative pressure base.

[0007] The rotary delinting structure includes two fixed rings fixedly installed on the top of the negative pressure base. The two fixed rings are respectively located at one end near the left and right sides of the negative pressure base. A sieve cylinder is fixedly installed inside the two fixed rings. The left side of the sieve cylinder is closed and the right side is open. A 7-shaped bracket is fixedly installed outside the right fixed ring. A motor is fixedly installed on the left side of the sieve cylinder. A rotating rod that penetrates into the inside of the sieve cylinder is fixedly installed at the output end of the motor. The right side of the rotating rod is rotatably connected to the left side of the 7-shaped bracket. A plurality of delinting brushes are fixedly installed on the outer wall of the rotating rod. An outer cover fitted onto the outside of the sieve cylinder is fixedly installed between the two fixed rings. The outer cover is interconnected with the negative pressure base.

[0008] The beneficial effects of this invention are as follows: The device supports and fixes the sieve cylinder above the negative pressure base through a fixing ring, and uses a 7-shaped bracket to support the rotating rod to rotate inside the sieve cylinder. After cotton seeds with fluff are put in, the cotton seeds will stick to the inner wall of the sieve cylinder due to the influence of the negative pressure base. Subsequently, the motor drives the rotating rod to rotate, which drives the delinting brush to sweep across the inner wall of the sieve cylinder, sweeping away the cotton fluff on the cotton seeds. The cotton fluff outside the cotton seeds is sucked away by the negative pressure base through the sieve holes, while the cotton fluff is entangled and gathered inside the sieve cylinder due to the influence of the rotation of the delinting brush. This device not only improves the delinting efficiency, but also meets environmental protection requirements, realizing a highly efficient and environmentally friendly delinting process for cotton seeds with fluff.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the negative pressure fabric removal structure includes a metal mesh fixedly installed inside the negative pressure base. A fan is provided on the back of the negative pressure base, and a suction pipe is fixedly installed on the suction end of the fan. A fan hood that penetrates into the negative pressure base is fixedly installed on the left side of the suction pipe, and the fan hood is located at the bottom of the metal mesh.

[0011] Furthermore, a spiral guide plate is fixedly installed on the inner wall of the screen cylinder, and the spiral guide plate surrounds the outside of the rotating rod and the delinting brush.

[0012] Furthermore, a feeding cylinder that extends through the screen cylinder is fixedly installed on the top of the outer cover, and the feeding cylinder is located at one end near the left side of the outer cover.

[0013] Furthermore, a sealing cover is hinged to the surface of the negative pressure base, and the sealing cover is located in front of the metal mesh.

[0014] Furthermore, a base plate is fixedly installed at the bottom of the negative pressure base, the bottom area of ​​the base plate is larger than the bottom area of ​​the negative pressure base, and the fan is fixedly installed on the top of the base plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a cottonseed threshing device from one perspective.

[0016] Figure 2 Another structural schematic diagram of a cottonseed threshing device with fluff;

[0017] Figure 3 This is a schematic diagram of the exploded structure of a cottonseed threshing device with fluff.

[0018] Figure 4 A partial cross-sectional schematic diagram of a cottonseed threshing device with lint.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Negative pressure base; 2. Fixing ring; 3. Screen cylinder; 4. 7-shaped bracket; 5. Motor; 6. Rotating rod; 7. Delinting brush; 8. Outer cover; 9. Metal mesh; 10. Fan; 11. Suction pipe; 12. Air cover; 13. Spiral guide plate; 14. Feeding cylinder; 15. Sealing cover; 16. Base plate. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0022] Example 1, as Figures 1-4 As shown, a cottonseed threshing device includes a negative pressure base 1, a rotating delinting structure on the top of the negative pressure base 1, and a negative pressure delinting structure inside the negative pressure base 1.

[0023] Specifically, the rotary delinting structure includes two fixing rings 2 fixedly installed on the top of the negative pressure base 1. The two fixing rings 2 are located at one end near the left and right sides of the negative pressure base 1, respectively. A sieve cylinder 3 is fixedly installed inside the two fixing rings 2. The left side of the sieve cylinder 3 is closed and the right side is open. A 7-shaped bracket 4 is fixedly installed outside the right fixing ring 2. A motor 5 is fixedly installed on the left side of the sieve cylinder 3. A rotating rod 6 that penetrates into the inside of the sieve cylinder 3 is fixedly installed at the output end of the motor 5. The right side of the rotating rod 6 is rotatably connected to the left side of the 7-shaped bracket 4. A number of delinting brushes 7 are fixedly installed on the outer wall of the rotating rod 6. An outer cover 8 is fixedly installed between the two fixing rings 2 and is sleeved on the outside of the sieve cylinder 3. The outer cover 8 is interconnected with the negative pressure base 1.

[0024] In use, the sieve cylinder 3 is supported and fixed above the negative pressure base 1 by two fixing rings 2. The 7-shaped bracket 4 installed on the outside of the fixing rings 2 supports the rotating rod 6 to rotate inside the sieve cylinder 3. After cottonseed with fluff is put into the sieve cylinder 3, the cottonseed with fluff will stick to the inner wall of the sieve cylinder 3 due to the negative pressure of the negative pressure base 1. Then, the motor 5 can be controlled to drive the rotating rod 6 to rotate. The rotating rod 6 drives multiple delinting brushes 7 to rotate and sweep across the inner wall of the sieve cylinder 3, which can bounce the fluff on the cottonseed with fluff. When the fluff on the outside of the cottonseed is swept away, it will be sucked away by the negative pressure base 1 through the sieve hole of the sieve cylinder 3. The fluff will be wrapped and gathered inside the sieve cylinder 3 due to the rotation of multiple delinting brushes 7. This device not only improves the delinting efficiency of cottonseed with fluff, but also meets environmental protection requirements.

[0025] Example 2, as Figures 1-4 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:

[0026] The negative pressure fabric removal structure includes a metal mesh 9 fixedly installed inside the negative pressure base 1. A fan 10 is provided on the back of the negative pressure base 1. A suction pipe 11 is fixedly installed at the suction end of the fan 10. A fan hood 12 that penetrates into the inside of the negative pressure base 1 is fixedly installed on the left side of the suction pipe 11. The fan hood 12 is located at the bottom of the metal mesh 9.

[0027] With this configuration, the blower 10 can draw air from inside the negative pressure base 1 by running through the suction pipe 11 and the hood 12. At this time, the inside of the negative pressure base 1 is in a negative pressure state. Due to the obstruction of the outer cover 8, air can be drawn from inside the sieve cylinder 3. When the cotton seeds inside the sieve cylinder 3 are drawn into the negative pressure base 1, they are blocked by the metal mesh 9 and thus stored inside the negative pressure base 1.

[0028] Example 3, as Figures 3-4 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:

[0029] A spiral guide plate 13 is fixedly installed on the inner wall of the sieve cylinder 3, and the spiral guide plate 13 surrounds the outside of the rotating rod 6 and the delinting brush 7.

[0030] With this configuration, when the rotating rod 6 and the delinting brush 7 rotate inside the sieve cylinder 3, the detached cotton fibers can be discharged from the right side of the sieve cylinder 3 to the outside due to the influence of the spiral guide plate 13.

[0031] Example 4, as Figures 1-4 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:

[0032] A feeding cylinder 14 that extends through the inside of the screen cylinder 3 is fixedly installed on the top of the outer cover 8. The feeding cylinder 14 is located at one end near the left side of the outer cover 8.

[0033] This design allows cottonseeds to be easily fed into the sieve cylinder 3 via the feeding cylinder 14.

[0034] Example 5, as Figures 1-4 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:

[0035] A sealing cover 15 is hinged to the surface of the negative pressure base 1, and the sealing cover 15 is located in front of the metal mesh 9.

[0036] This design makes it easy to remove the cotton seeds inside the negative pressure base 1 after opening the sealing cover 15.

[0037] Example 6, as Figures 1-4 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:

[0038] A base plate 16 is fixedly installed on the bottom of the negative pressure base 1. The bottom area of ​​the base plate 16 is larger than the bottom area of ​​the negative pressure base 1. The fan 10 is fixedly installed on the top of the base plate 16.

[0039] With this configuration, the device can be stably supported on the ground by the base plate (16).

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cottonseed threshing device with lint, comprising a negative pressure base (1), characterized in that: The top of the negative pressure base (1) is provided with a rotating delinting structure, and the interior of the negative pressure base (1) is provided with a negative pressure delinting structure; The rotary delinting structure includes two fixed rings (2) fixedly installed on the top of the negative pressure base (1). The two fixed rings (2) are located at one end near the left and right sides of the negative pressure base (1). A sieve cylinder (3) is fixedly installed inside the two fixed rings (2). The left side of the sieve cylinder (3) is closed and the right side is open. A 7-shaped bracket (4) is fixedly installed outside the right fixed ring (2). A motor (5) is fixedly installed on the left side of the sieve cylinder (3). A rotating rod (6) that penetrates into the inside of the sieve cylinder (3) is fixedly installed at the output end of the motor (5). The right side of the rotating rod (6) is rotatably connected to the left side of the 7-shaped bracket (4). A number of delinting brushes (7) are fixedly installed on the outer wall of the rotating rod (6). An outer cover (8) is fixedly installed between the two fixed rings (2) and sleeved on the outside of the sieve cylinder (3). The outer cover (8) is interconnected with the negative pressure base (1).

2. The cottonseed threshing device according to claim 1, characterized in that: The negative pressure fabric removal structure includes a metal mesh (9) fixedly installed inside the negative pressure base (1). A fan (10) is provided on the back of the negative pressure base (1). A suction pipe (11) is fixedly installed at the suction end of the fan (10). A fan hood (12) that penetrates into the negative pressure base (1) is fixedly installed on the left side of the suction pipe (11). The fan hood (12) is located at the bottom of the metal mesh (9).

3. The cottonseed threshing device according to claim 1, characterized in that: The inner wall of the sieve cylinder (3) is fixedly installed with a spiral guide plate (13), which surrounds the outside of the rotating rod (6) and the delinting brush (7).

4. The cottonseed threshing device according to claim 1, characterized in that: The top of the outer cover (8) is fixedly installed with a feeding cylinder (14) that extends into the inside of the screen cylinder (3), and the feeding cylinder (14) is located at one end near the left side of the outer cover (8).

5. The cottonseed threshing device according to claim 1, characterized in that: The surface of the negative pressure base (1) is hinged with a sealing cover (15), which is located in front of the metal mesh (9).

6. The cottonseed threshing device according to claim 2, characterized in that: The bottom of the negative pressure base (1) is fixedly installed with a base plate (16), the bottom area of ​​the base plate (16) is larger than the bottom area of ​​the negative pressure base (1), and the fan (10) is fixedly installed on the top of the base plate (16).