A seed cotton anti-blocking and picking box based on an annular flow area

Abstract

This invention discloses a seed cotton anti-clogging cotton stripping box based on an annular flow zone. Based on a traditional cotton stripping unit consisting of a stripping saw blade and stripping ribs, this cotton stripping box adds a sterile cotton seed collecting screen roller and a cotton stripping box cover plate above the front end of the stripping ribs, and a sterile cotton seed collecting auger below. An annular flow space is formed between the front end of the stripping ribs, the cotton stripping box cover plate, and the circumferential surface of the rotating sterile cotton seed collecting screen roller. During operation, the rotating screen roller mechanically agitates the accumulated material. Within this annular flow space, stripped cotton seeds are screened and discharged, while unstripped cotton seeds are guided back to the stripping saw blade area. This invention effectively solves the clogging problem at the front end of the stripping ribs by actively constructing and maintaining annular flow, significantly improving stripping efficiency, reducing cotton fiber damage, and ensuring the continuity and stability of equipment operation.

Description

Technical Field

[0001] This invention relates to the field of cotton processing machinery technology, specifically to a cotton lint separating equipment and process, and particularly to a cotton lint separating method and lint separating box for preventing blockage at the front end of the ribs of the cotton lint separating machine and improving cotton lint separating efficiency and fiber quality. Background Technology

[0002] In cotton processing, the cleaning and delinting of seed cotton is a crucial pre-treatment step. Its core efficiency directly determines the cleanliness of the subsequent lint, the degree of damage to the cotton fibers, and the yield and quality of high-value products such as long-staple cotton. It has a decisive impact on improving the overall economic benefits of processing and reducing raw material waste. Therefore, optimizing and innovating the equipment and processes in this step has always been an important research direction in the field of cotton processing technology.

[0003] Currently, the mainstream technology of cotton lint removal equipment commonly used in production practice relies on the forced airflow generated by high-speed fans for sorting and cleaning. Specifically, this technology mainly utilizes the differences in specific gravity and aerodynamic properties of cotton seeds, cotton lint, and impurities to attempt to suck away the lighter short fibers and dust through airflow, while the heavier cotton seeds and impurities continue to be conveyed forward.

[0004] However, this scheme based on simple pneumatic sorting has significant inherent defects: First, it has extremely limited effect on separating particulate impurities with a specific gravity similar to cottonseed, resulting in incomplete cleaning; Second, in actual cotton linting operations, seed cotton is very prone to entanglement and accumulation in the front working area of ​​the linting ribs, forming rust-like blockages. The high-speed airflow is insufficient to clear such mechanical blockages, causing the linted cottonseeds and the seed cotton to be linted to mix and stagnate at the front of the ribs. This not only seriously hinders the normal flow and continuous operation of materials and significantly reduces linting efficiency, but also causes some cottonseeds to be repeatedly scraped by the saw blade, resulting in damage and breakage of long-staple cotton fibers, directly affecting the grade and value of the final lint.

[0005] In summary, existing de-fluffing equipment and methods lack an effective and proactive solution to the critical bottleneck of material blockage at the front end of the ribs. This leads to problems such as low operating efficiency, damaged fiber quality, and increased processing costs, which have become prominent pain points restricting technological progress and efficiency improvement in the industry. The industry urgently needs an innovative technical solution that can fundamentally prevent and dynamically eliminate blockage in this area, thereby achieving stable, efficient, and high-quality de-fluffing operations. Summary of the Invention

[0006] In response to the problems in existing seed cotton delinting machines, such as the entanglement and accumulation of cotton seeds and cotton fibers at the front end of the delinting ribs, which leads to low operating efficiency, repeated stress damage to cotton fibers, and a decline in the quality of long-staple cotton output, this invention aims to dynamically prevent clogging and achieve continuous, stable, and efficient delinting operations through a novel structural layout and working method.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] The present invention first provides a seed cotton anti-clogging fluffing box based on an annular flow zone. The fluffing box includes a box body with a seed cotton inlet, a cotton seed outlet and a lint cotton outlet. The box body is provided with a fluffing saw blade and fluffing ribs that cooperate with it to perform the basic fluffing function. The key improvement of the present invention is that it adds an infertile cotton seed collecting screen roller, an infertile cotton seed collecting auger and a fluffing box cover plate.

[0009] The infertile cottonseed collecting screen roller is rotatably mounted above the front end of the cottonseed rib, and its axial direction is consistent with the extension direction of the cottonseed rib.

[0010] The cotton ginning box cover is located above the sieve roller, so that the front end of the cotton ginning rib, the cotton ginning box cover, and the circumferential surface of the infertile cotton seed collecting sieve roller together form a unique annular flow space.

[0011] The infertile cottonseed collecting auger is located below the infertile cottonseed collecting screen roller.

[0012] Furthermore, the cotton ginning box may also include a cotton seed ginning roller and a cotton seed sieve disposed below the rear section of the cotton ginning ribs, and a cotton lint collecting roller disposed above the cotton ginning saw blade near the cotton lint outlet.

[0013] The roller surface of the infertile cottonseed collecting screen roller may preferably be provided with a raised or toothed structure, and its axis is arranged parallel to the axis of the infertile cottonseed collecting auger below.

[0014] Based on the same inventive concept, the present invention also provides a method for preventing clogging and removing cotton fibers based on an annular flow zone. This method uses the aforementioned fiber removal box and includes the following steps:

[0015] S1. The cotton to be stripped enters from the inlet and is driven by the stripping saw blade to the stripping ribs for cotton linting.

[0016] S2. Drive the infertile cottonseed collecting screen roller to rotate, and apply a mechanical stirring action to the material accumulated at the front end of the cottonseed ribs on its surface;

[0017] S3. Within the annular flow space maintained by the front end of the cotton rinding ribs, the cotton rinding box cover, and the rotating infertile cotton seed collecting sieve roller, the rinded cotton seeds are sieved out during agitation and discharged through the collection system, while the unrinded cotton seeds are guided back to the working area of ​​the cotton rinding saw blade under the guidance of this space to continue the stripping operation.

[0018] The rotation direction of the screen roller can be configured to guide the material toward the scouring saw blade. Its rotation speed can be adjusted to control the agitation intensity. After scouring, the cotton seeds can be further screened by the cotton seed sieve under the action of the cotton seed scouring roller before being discharged. The core of this method is to actively construct and maintain the dynamic working state of the annular flow space so that the material in the front area of ​​the scouring rib is always in a controlled circulation flow.

[0019] Compared with the prior art, the present invention has the following significant advantages:

[0020] 1. By constructing an annular flow space and driving the screen roller to actively agitate, the accumulation and entanglement of materials at the front end of the ribs are physically broken, transforming passive blockage into active drainage.

[0021] 2. The dynamic circular flow ensures a continuous and smooth supply of materials, avoids efficiency losses caused by downtime for cleaning, and significantly increases the amount of flocking processed per unit time.

[0022] 3. It effectively prevents the retention and repeated plucking of plucked cotton seeds, reduces the breakage or damage to cotton fibers caused by excessive action, and significantly improves the grade and quality of lint.

[0023] 4. This structure and method enable self-cleaning and continuous maintenance of easily clogged areas, ensuring smooth operation of the entire delamination process, reducing equipment failure rate and frequency of manual intervention, and lowering operation and maintenance costs.

[0024] 5. While preventing blockage, the rotating screening action of the screen roller can promptly discharge the separated fine cotton seeds and other particles, avoiding secondary mixing in the working area and improving the overall cleaning and separation effect.

[0025] In summary, this invention, through the core concept of an annular flow zone, has achieved synergistic innovation at the structural and methodological levels, effectively overcoming the bottlenecks of existing flocking technology and realizing a comprehensive leap in flocking efficiency, fiber quality, and operational stability. Attached Figure Description

[0026] Figure 1 This is a schematic cross-sectional view of the internal structure of the seed cotton anti-clogging and fluffing box based on the annular flow zone described in this invention;

[0027] The components and markings shown in the figure are as follows: 1. Infertile cottonseed collecting auger; 2. Infertile cottonseed collecting screen roller; 3. Cottonseed dispensing roller; 4. Cottonseed screen; 5. Fluffing box cover plate; 6. Fluffing ribs; 7. Fluffing saw blade; 8. Lint collecting roller; A. Cotton inlet to be dispensed; B. Cottonseed outlet; C. Lint outlet. Detailed Implementation

[0028] To enhance understanding of the present invention, the invention will be further described in detail below with reference to embodiments and accompanying drawings. These embodiments are only for explaining the invention and do not constitute a limitation on the scope of protection of the invention.

[0029] like Figure 1 As shown in the figure, the present invention provides a seed cotton anti-clogging fluffing box based on an annular flow zone. Its core lies in the innovative modification of the key structure of the traditional fluffing box, replacing the passive dependence on airflow with dynamic and active mechanical intervention, thereby eradicating the clogging problem. The fluffing box mainly includes a box body, on which there are seed cotton inlet A, cotton seed outlet B and lint cotton outlet C respectively. The box body contains the core components that perform the fluffing function as well as the innovative components of the present invention.

[0030] Specifically, the box is equipped with a cotton lint stripping saw blade 7 and cotton lint stripping ribs 6 that are precisely matched with it. The two constitute the basic cotton lint stripping unit. The cotton lint stripping saw blade 7 is driven to rotate at high speed by a drive device. Its saw teeth are used to hook and pull the seed cotton. The cotton lint stripping ribs 6 are arranged with a specific gap. The gap width is smaller than the diameter of the cotton seed to allow the cotton fiber to pass through, thereby achieving forced separation of cotton lint and cotton seed.

[0031] Above the easily clogged area at the front end of the cotton rib 6, an active unblocking and sorting system is added. This system mainly consists of an infertile cotton seed collecting screen roller 2, a cotton rib box cover plate 5, and an infertile cotton seed collecting auger 1.

[0032] The infertile cottonseed collecting sieve roller 2 is rotatably supported on the side wall of the box, and its axial direction is consistent with the extension direction of the lint-removing rib 6. It is arranged parallel above the front end of the lint-removing rib 6. The roller surface of the infertile cottonseed collecting sieve roller 2 can preferably be provided with agitation units with protrusions, spikes, or similar structures to enhance its mechanical action.

[0033] The cottonseed plucking box cover 5 is fixedly installed inside the box and located directly above the infertile cottonseed collecting sieve roller 2. Its specific arc-shaped or plate-shaped structure, together with the circumferential surface of the rotating infertile cottonseed collecting sieve roller 2 below and the top part of the cottonseed plucking rib 6 in front, together form an area with an approximately annular cross section, namely the annular flow space described in this invention.

[0034] The infertile cottonseed collecting auger 1 is located directly below the infertile cottonseed collecting screen roller 2, with its axis parallel to the axis of the infertile cottonseed collecting screen roller 2. It is used to receive and transport fine materials such as plucked cottonseed falling from the screen holes of the infertile cottonseed collecting screen roller 2.

[0035] To further optimize the separation effect, a cotton seed roller 3 and a cotton seed sieve 4 can also be installed below the rear section of the cotton seed rib 6 inside the box.

[0036] The cottonseed roller 3 is used to push and convey the cottonseeds that have been stripped and stuck outside the ribs downwards, while the cottonseed sieve 4 is used to remove any small amount of residual impurities that may be mixed in with the cottonseeds. The clean cottonseeds are finally discharged through the cottonseed outlet B.

[0037] In addition, a cotton collecting roller 8 is provided above the cotton stripping saw blade 7 and near the cotton outlet C. Its function is to peel off the cotton fibers hanging on the saw teeth of the cotton stripping saw blade 7 and allow the cotton fibers to be sent away or collected by airflow through the cotton outlet C.

[0038] The working process of the cotton lint removal box and the anti-clogging principle of the annular flow zone described in this invention are as follows: First, the seed cotton to be processed is fed in from the cotton lint removal inlet A, and is hooked by the saw teeth of the high-speed rotating cotton lint removal saw blade 7 and driven to move upward; second, when it moves to the cotton lint removal rib 6, because the gap between the ribs is smaller than the diameter of the cotton seed, the cotton seed is blocked outside the rib, and the saw teeth forcibly peel the cotton lint off the cotton seed, and the cotton lint hangs on the saw teeth and continues to move upward; finally, it is peeled off by the lint collection roller 8 and output through the lint outlet C, completing the core cotton lint removal operation.

[0039] During this process, the plucked cotton seeds and the continuously fed cotton seeds to be plucked are very likely to accumulate and entangle at the front end of the plucking ribs 6, forming a blockage. At this time, the active unblocking system added by the present invention starts to work: the drive mechanism drives the infertile cotton seed collecting screen roller 2 to rotate continuously. The rotating infertile cotton seed collecting screen roller 2, especially the protrusions or toothed structures on its surface, continuously and powerfully stirs and disperses the material pile accumulated at the front end of the plucking ribs 6. This active stirring breaks the static entanglement and clumping state of the material.

[0040] More importantly, within the "annular flow space" defined and maintained by the front end of the cotton-plucking ribs 6, the cotton-plucking box cover plate 5, and the rotating infertile cottonseed collecting screen roller 2, the dispersed material follows a controlled flow path. Cottonseeds that have been separated from the cottonseeds and have a smaller particle size can pass through the screen holes of the infertile cottonseed collecting screen roller 2 under the action of agitation and gravity, and fall into the infertile cottonseed collecting auger 1 below it, and be promptly transported out of the system, avoiding stagnation.

[0041] Meanwhile, the larger cotton clumps that have not been peeled are guided back to the effective working area of ​​the cotton plucking saw blade 7 by the agitation of the surface of the infertile cotton seed collecting sieve roller 2 and the guiding effect of the annular space structure itself, and continue to participate in the normal cotton plucking process.

[0042] The process described above achieves simultaneous and dynamic separation and discharge of plucked cotton seeds and effective recycling and reuse of unplucked cotton seeds, maintaining a dynamic balance of circulation in the front area of ​​the ribs. This fundamentally prevents the formation of static blockages. After being separated by the plucking ribs 6, the cotton seeds are further cleaned by the cotton seed screen 4 with the assistance of the cotton seed roller 3 and then smoothly discharged from the cotton seed outlet B.

[0043] The feasibility and advantages of the present invention are further illustrated below through a specific implementation example.

[0044] In a typical embodiment, a cotton ginning box is designed to process 5 tons of seed cotton per hour.

[0045] The working speed of the lint-removing saw blade 7 inside the box is set to 800-1000 rpm to ensure effective lint hooking and peeling force.

[0046] The core innovative component, the infertile cottonseed collecting sieve roller 2, is installed about 50-80 mm above the front end of the cottonseed rib 6. Its diameter can be 300 mm, and its working speed is adjustable, ranging from 30-60 rpm.

[0047] By adjusting the rotation speed of the infertile cotton seed collecting screen roller 2, the agitation intensity of the clogged area can be precisely controlled: for high-moisture cotton seeds that are prone to clumping, a higher rotation speed (e.g., 55 rpm) can be used to enhance the breaking and unblocking ability; for cotton seeds with better flowability, a lower rotation speed (e.g., 35 rpm) can be used to save energy and reduce potential disturbance to the fibers.

[0048] The rotation direction of the infertile cottonseed collecting screen roller 2 is configured to guide the material below it toward the cotton-removing saw blade 7, thereby actively sending the cotton to be removed back to the working area.

[0049] In this embodiment, the lint removal box cover 5 is designed as an arc-shaped plate that matches the curvature of the infertile cotton seed collecting sieve roller 2. The gap between its lower edge and the surface of the infertile cotton seed collecting sieve roller 2 is about 10 mm, and the vertical distance between its lower edge and the top of the lint removal rib 6 is about 100 mm.

[0050] The precise spatial relationship between these three elements ensures the effective formation of the "annular flow space." When the equipment is running, it can be observed that at the front end of the cotton rib 6, the material no longer accumulates into a static rust lump, but instead, under the action of the infertile cotton seed collecting screen roller 2, it continuously rolls and circulates along the channel formed by the top of the cotton rib 6, the cotton rib box cover plate 5, and the surface of the infertile cotton seed collecting screen roller 2.

[0051] Fine cotton seeds that have been plucked continuously fall through the sieve holes (approximately 8-10 mm in diameter) of the infertile cotton seed collecting sieve roller 2 and are sent away into the infertile cotton seed collecting auger 1 below; while larger pieces of seed cotton are recycled back into the plucking process.

[0052] Practice has proven that the cotton lint removal box using the solution in this embodiment can achieve stable, clog-free operation for more than 8 hours when faced with materials that were previously prone to clogging, without the need for manual shutdown for cleaning. Compared with the original equipment that relies on airflow, the cotton lint removal efficiency is increased by about 25%, the damage rate of long-staple cotton fibers caused by repeated cotton lint removal is reduced by about 15%, and the overall quality of the lint is significantly improved. At the same time, since active mechanical unblocking replaces some of the high-energy-consuming fan airflow, the overall energy consumption is reduced.

[0053] This implementation example fully verifies that the design concept of achieving dynamic anti-clogging by constructing an "annular flow zone" is feasible, efficient, and has significant economic benefits.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A seed cotton anti-clogging and fluffing box based on an annular flow zone, comprising: The box body is provided with a cotton seed inlet, a cotton seed outlet and a lint outlet. The box body is provided with a lint saw blade and lint ribs that cooperate with the lint saw blade. The box body is characterized by further including: a sterile cotton seed collecting screen roller, a sterile cotton seed collecting auger and a lint box cover plate. The infertile cottonseed collecting screen roller is rotatably disposed above the front end of the lint-removing rib, and its axial direction is consistent with the extension direction of the lint-removing rib. The lint removal box cover is located above the infertile cottonseed collecting screen roller, and an annular flow space is formed between the front end of the lint removal rib, the lint removal box cover, and the circumferential surface of the infertile cottonseed collecting screen roller. The infertile cottonseed collecting auger is located below the infertile cottonseed collecting screen roller.

2. The velvet-lined box according to claim 1, characterized in that, It also includes a cottonseed roller and a cottonseed screen, which are disposed below the rear section of the cottonseed rib, with the cottonseed screen located between the cottonseed roller and the cottonseed outlet.

3. The velvet-lined box according to claim 1, characterized in that, The surface of the infertile cottonseed collecting sieve roller is provided with a raised structure or a toothed structure.

4. The velvet-lined box according to claim 1, characterized in that, The axis of the infertile cottonseed collecting auger is set parallel to the axis of the infertile cottonseed collecting screen roller.

5. The velvet-lined box according to claim 1, characterized in that, The lint collection box also includes a lint collection roller, which is positioned above the lint saw blade and adjacent to the lint outlet.

6. A method for preventing clogging and removing fluff from seed cotton based on an annular flow zone, characterized in that, The case employs the flocking box as described in any one of claims 1 to 5, and includes the following steps: S1. The cotton to be stripped enters from the cotton inlet and is driven by the stripping saw blade to the stripping ribs for cotton linting. S2. Drive the infertile cottonseed collecting screen roller to rotate, and apply a mechanical stirring action to the material accumulated at the front end of the cottonseed ribs on its surface; S3. In the annular flow space maintained by the front end of the cotton rib, the cotton rinsing box cover and the rotating infertile cotton seed collecting sieve roller, the rinsed cotton seeds are sieved and discharged, while the unrinsed cotton seeds are guided back to the working area of ​​the cotton rinsing saw blade.

7. The flocking method according to claim 6, characterized in that, In the step of driving the infertile cottonseed collecting screen roller to rotate, the rotation direction is configured to guide the material toward the tufting saw blade.

8. The flocking method according to claim 6, characterized in that, The intensity of material agitation is controlled by adjusting the rotation speed of the infertile cottonseed collecting sieve roller.

9. The flocking method according to claim 6, characterized in that, It also includes the step of: sieving the plucked cotton seeds through a cotton seed sieve under the action of a cotton seed plucking roller, and then discharging them from the cotton seed outlet.

10. The flocking method according to claim 6, characterized in that, The dynamic maintenance of the annular flow space ensures that the material in the front end area of ​​the flocked rib is in a state of circulating flow.

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