A cotton yarn cleaning machine capable of performing hierarchical screening

Abstract

The utility model discloses a cotton yarn cleaning machine that can carry out grading screening, and belongs to the technical field of cotton yarn processing equipment. It mainly comprises: a main frame, a plurality of rollers and a licker-in are arranged in the main frame, and a swing mechanism is fixed between the roller and the licker-in at one end; a cleaning mechanism is fixed in the middle of the main frame; a drying mechanism is fixed at the top of one end of the main frame, and a lint collecting mechanism is fixed with the main frame below the drying mechanism. The utility model adopts a reverse flushing mode to flush the cotton yarn in motion, which can effectively avoid the damage caused by the excessive cleaning of the traditional stirring cleaning mode. At the same time, the pollution of the liquid in the traditional cleaning barrel to the cotton yarn is also avoided. On the other hand, through the cooperation of the reverse flushing, the mixing and drying mechanism at the end of the equipment and the lint collecting mechanism, the grading screening work of the cotton yarn can be completed in the cleaning link. The utility model is mainly used for the cleaning and grading work of the cotton yarn.

Description

Technical Field

[0001] This utility model belongs to the technical field of cotton yarn processing equipment, and more specifically, it relates to a cotton yarn washing machine that can perform grading and screening. Background Technology

[0002] Cleaning is a crucial step in the production and processing of cotton yarn. Its purpose is to remove impurities, oil stains, and other contaminants from the surface of the cotton yarn to ensure the smooth progress of subsequent spinning and manufacturing processes, while also improving the quality of the final product.

[0003] Currently, most common cotton yarn cleaning equipment uses a whole-piece cleaning method, which involves placing the cotton yarn to be cleaned into the cleaning device and soaking, agitating, and rinsing it with clean water or detergent. However, this whole-piece cleaning method may damage the cotton yarn due to over-cleaning. Furthermore, the whole-piece cleaning method may also lead to cotton yarn contamination if the liquid inside the cleaning device is not changed in a timely manner.

[0004] On the other hand, existing cleaning equipment does not have a grading and screening function. Although cotton yarn can be graded manually in the cleaning gun, this method not only increases labor costs, but also has low grading efficiency.

[0005] Therefore, how to reduce damage to the cotton yarn structure during the washing process, and how to classify and screen the cotton yarn during the washing process are urgent problems to be solved. Utility Model Content

[0006] The technical problem this invention aims to solve is to overcome the shortcomings of existing technologies and provide a cotton yarn washing machine capable of grading and screening. This machine employs a reverse rinsing method to wash the cotton yarn as it moves through the process, effectively avoiding the damage caused by over-washing in traditional agitation methods. It also prevents contamination of the cotton yarn by the liquid in the traditional washing tank. Furthermore, through the cooperation of reverse rinsing and the mixing and drying mechanism at the end of the equipment with the lint collection mechanism, the grading and screening of the cotton yarn can be completed during the washing process, thereby saving labor costs and improving the efficiency and quality of grading.

[0007] The cotton yarn washing machine capable of grading and screening includes a main frame, inside which are provided multiple rollers and licker-in rollers, with a swing mechanism fixed between one end of the roller and the licker-in roller; a washing mechanism is fixed in the middle of the main frame, located between two of the rollers; a drying mechanism is fixed at the top of one end of the main frame, and a down collecting mechanism is fixed to the main frame below the drying mechanism, and the drying mechanism and the down collecting mechanism are connected.

[0008] Preferably, the swing mechanism includes a main body, limiting wheels, a movable plate, and a drive assembly. Multiple limiting wheels are provided and fixed to one side of the main body, and movable plates are embedded between the limiting wheels. The drive assembly is fixed to the other side of the main body plate, and one end of it is fixedly connected to a fixed plate. Both ends of the main body plate are movably connected to elastic seats.

[0009] Preferably, the drive assembly includes a housing, a drive motor, an eccentric wheel assembly, and a follower fork. The housing has a slot on its inner side, and the eccentric wheel assembly is movably disposed in the slot. The drive motor is fixed to one side of the housing, and its power output end is fixedly connected to the eccentric wheel assembly. The follower fork is embedded in the slot of the housing at one end and is movably connected to the housing and the eccentric wheel assembly. A connecting rod is fixed to the other end, and the connecting rod is fixedly connected to the movable plate.

[0010] Preferably, the eccentric wheel assembly is composed of a first clamping plate and a second clamping plate arranged in parallel, and a first eccentric gear and a second eccentric gear meshing between them; wherein the first eccentric gear is fixedly connected to the power output end of the drive motor; and the second eccentric gear is rotatably connected to the follower fork.

[0011] Preferably, a material carrier plate is connected to the top of the movable plate, and the surface of the material carrier plate is provided with multiple material perforations.

[0012] Preferably, the cleaning mechanism includes a water tank, spray pipes, and a squeezing assembly. The water tank is fixed in the middle of the main frame, and multiple spray pipes fixed to the main frame are provided above it. The squeezing assembly is rotatably connected to the main frame and is located above one end of the water tank.

[0013] Preferably, both ends of the dewatering assembly are connected to a pressurizing assembly that is fixed to the main frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Using a reverse rinsing method to rinse the cotton yarn in motion can effectively avoid the damage caused by excessive cleaning of cotton yarn by traditional agitation cleaning methods.

[0016] 2. The cotton yarn is not directly immersed in the water tank, which reduces the possibility of the reused liquid contaminating the cotton yarn.

[0017] 3. By combining the reverse rinsing and the mixing and drying mechanism at the end of the equipment with the down collection mechanism, the grading and screening of cotton yarn can be completed in the washing process, which not only saves labor costs, but also improves the efficiency and quality of grading. Attached Figure Description

[0018] Figure 1 This is the front view of the present invention;

[0019] Figure 2 This is a schematic diagram showing the distribution of the rollers and the licker rollers of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the main structure of the swing mechanism of this utility model;

[0022] Figure 5 This is a rear view schematic diagram of the swing mechanism of this utility model;

[0023] Figure 6 This is a schematic diagram of the drive component structure of this utility model;

[0024] Figure 7 This is a schematic diagram of the eccentric wheel assembly structure of this utility model;

[0025] Figure 8 This is a partial enlarged view of the present invention;

[0026] Figure 9 This is a schematic diagram showing the connection between the water supply component and the extrusion component of this utility model;

[0027] Figure 10 This is a schematic diagram showing the connection between the drying mechanism and the lint collection mechanism of this utility model;

[0028] Figure 11 This is a schematic diagram showing the connection between the material and the roller and the spiked roller of this utility model.

[0029] In the diagram, 1. Main frame; 2. Roller; 21. Roller No. 1; 22. Roller No. 2; 23. Roller No. 3; 24. Roller No. 4; 25. Roller No. 5; 26. Roller No. 6; 3. Spike roller; 31. First spike roller; 32. Second spike roller; 321. First sprocket; 322. Motor; 323. Second sprocket; 4. Swinging mechanism; 41. Main body; 411. Through groove; 42. Limiting wheel; 43. Movable plate; 431. Boss; 44. Drive assembly; 441. Housing; 4411. Empty groove; 4412. Slide groove; 442. Drive motor; 443. Eccentric wheel set; 4431. First clamping plate; 4432. Two clamping plates; 4433, First eccentric gear; 4434, Second eccentric gear; 4435, Connecting through hole; 4436, Connecting column; 444, Follower fork; 445, Connecting rod; 4451, Support frame; 45, Elastic seat; 451, Spring; 46, Carrying plate; 461, Material perforation; 5, Cleaning mechanism; 51, Water tank; 52, Spray pipe; 53, Water squeezing assembly; 531, Fixed roller; 532, Squeezing roller; 54, Pressurizing assembly; 541, Fixed block; 542, Pull plate; 543, Pull rod; 55, Water pump; 6, Drying mechanism; 61, Hot air assembly; 7, Flocking mechanism; 71, Suction pipe. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Figures 1 to 3 As shown, a cotton yarn washing machine capable of grading and screening includes a main frame 1. The main frame 1 is provided with multiple rollers 2 and licker-in rollers 3. A swing mechanism 4 is fixed between one end of the rollers 2 and the licker-in roller 3. A washing mechanism 5 is fixed in the middle of the main frame 1, located between two rollers 2. A drying mechanism 6 is fixed at the top of one end of the main frame 1. A down-collecting mechanism 7 is provided below the drying mechanism 6 and is fixed to the main frame 1. The drying mechanism 6 and the down-collecting mechanism 7 are connected.

[0033] Optionally, multiple rollers 2 are provided, including roller 1 21, roller 22, roller 3 23, roller 4 24, roller 5 25, and roller 6 26. All rollers 2 are located at different positions within the main frame 1 and are rotatably connected to the main frame 1. Thus, rollers 1 to 6 are arranged from one end of the main frame 1 to the other, and cooperate with the licker-in roller 3 to guide or stretch the cotton yarn, enabling the cotton yarn to run stably along a preset direction.

[0034] Optionally, multiple licker-in rollers 3 are provided, surrounding the first licker-in roller 31 and the second licker-in roller 32. Both have protruding structures on their surfaces, and are arranged longitudinally in a staggered manner between the first roller 21 and the second roller 22. Thus, cotton yarn fed in from the direction of the first roller 21, after the contact area with the licker-in roller 3 is increased by the oscillating mechanism 4, is pulled and stretched by the protruding structures on the first licker-in roller 31, causing the cotton yarn to initially spread evenly on the surface of the first licker-in roller 31. Then, the initially spread cotton yarn is further flattened by the second licker-in roller 32, and finally guided by the second licker-in roller 22 to the washing mechanism 5. Through multiple spreading processes by the licker-in rollers 3, the strip-shaped cotton yarn is fully stretched, exposing any impurities, allowing the washing mechanism 5 to perform thorough rinsing.

[0035] Optionally, one end of the second piercing roller 32 protrudes outside the main frame 1 and is fixed with the first sprocket 321.

[0036] Optionally, a motor 322 fixed to the main frame 1 is provided at a position adjacent to the second spit roller 32, with its power output end protruding outside the main body and a second sprocket 323 fixed thereon; the second sprocket 323 is connected to the first sprocket 321 by a chain.

[0037] like Figure 4 and Figure 5 As shown, the swing mechanism 4 includes a main board 41, limiting wheels 42, a movable plate 43, and a drive assembly 44. Multiple limiting wheels 42 are provided and fixed to one side of the main board 41, with the movable plate 43 embedded between them. The drive assembly 44 is fixed to the other side of the main board 41, with one end fixedly connected to a fixed plate. Both ends of the main board 41 are movably connected to elastic seats 45. Thus, driven by the drive assembly 44 and limited and guided by the limiting wheels 42, the movable plate 43 reciprocates along a straight line, laying the cotton yarn in a wavy pattern on the surface of the first licker-in roller 31. The reciprocating motion of the movable plate 43, when the cotton yarn is hooked by the protrusions on the surface of the first licker-in roller 31, causes the cotton yarn to move laterally, generating a tearing force that disperses the strips of cotton yarn, fully exposing impurities for rinsing.

[0038] Optionally, the surface of the mainboard body 41 is provided with a through groove 411. In this way, the movable plate 43 and the drive assembly 44 can be connected through the through groove 411.

[0039] Optionally, a boss 431 adapted to the through groove 411 is fixed on one side of the movable plate 43, and the boss 431 is fixedly connected to the drive assembly 44.

[0040] Optionally, the outer wall of the limiting wheel 42 is provided with a groove that matches the thickness of the side wall of the movable plate 43. In this way, the width of the side wall of the movable plate 43 matches the thickness of the groove, so that the movable plate 43 can be precisely embedded in the groove and is less likely to shift or detach from the limiting wheel 42 during reciprocating sliding.

[0041] Optionally, one side of the elastic seat 45 is fixedly connected to the main frame 1, and the other side is movably connected to the main board 41, with multiple springs embedded inside that abut against the embedded end of the main board 41. In this way, the drive assembly 44, due to structural influences, will generate significant offset vibrations during operation. The elastic seat 45 reduces the impact between the main board 41 and the main frame 1, thus extending the service life of the main board 41. Furthermore, the elastic seat 45 allows the main board 41 to have a free travel distance to follow the offset vibrations of the drive assembly 44, fully utilizing these vibrations. This enables the movable plate 43 to not only move left and right but also to move up and down through the offset vibrations. This up-and-down movement stretches the cotton yarn during its feeding to the first licker-in roller 31, further improving the yarn's elasticity.

[0042] like Figure 6 As shown, the drive assembly 44 includes a housing 441, a drive motor 442, an eccentric wheel assembly 443, and a follower fork 444. The housing 441 has an inner groove 4411, and the eccentric wheel assembly 443 is movably disposed within the groove 4411. The drive motor 442 is fixed to one side of the housing 441, and its power output end is fixedly connected to the eccentric wheel assembly 443. The follower fork 444 is movably connected to the housing 441 and the eccentric wheel assembly 443 by being embedded in the groove 4411 at one end of the housing 441, and a connecting rod 445 is fixedly attached to the other end, and the connecting rod 445 is fixedly connected to the movable plate 43. Thus, the power output end of the drive motor 442 is fixedly connected to the eccentric wheel assembly 443, and when the drive motor 442 rotates, the eccentric wheel assembly 443 rotates eccentrically around the power output end as its axis. As the eccentric wheel assembly 443 rotates eccentrically, it drives the follower fork 444 connected to it to reciprocate, thereby achieving the purpose of driving the movable plate 43 to move back and forth.

[0043] Optionally, the housing 441 is provided with grooves 4412 on both sides that are adapted to the follower fork 444 and the eccentric wheel assembly 443. In this way, the grooves 4412 can limit the follower fork 444 and the eccentric wheel assembly 443, preventing them from shifting during movement, thereby improving the operational stability of the swing mechanism 4.

[0044] Optionally, a support frame 4451 is provided in the middle of the connecting rod 445, and the support frame 4451 is fixedly connected to the main body 41. In this way, the support frame 4451 can further limit the movement of the follower fork 444 and the connecting rod 445, thereby improving their operational stability.

[0045] like Figure 7 As shown, the eccentric wheel assembly 443 is composed of a first clamping plate 4431 and a second clamping plate 4432 arranged in parallel, with a first eccentric gear 4433 and a second eccentric gear 4434 meshing between them; wherein the first eccentric gear 4433 is fixedly connected to the power output end of the drive motor 442; and the second eccentric gear 4434 is rotatably connected to the follower fork 444. In this way, the first clamping plate 4431 and the second clamping plate 4432 can limit the rotation of the first eccentric gear 4433 and the second eccentric gear 4434, ensuring that they maintain stable meshing while rotating around the power output end of the drive motor 442.

[0046] Optionally, one side of the first eccentric gear 4433 is provided with a connecting through hole 4435 adapted to the power output end of the drive motor 442. In this way, the power output end of the drive motor 442 can pass through the connecting through hole 4435, pass through the first parallel wheel, and rotatably connect to the second clamping plate 4432. Through the limiting effect of the first clamping plate 4431 and the second clamping plate 4432, and the fixed connection between the drive motor 442 and the first clamping plate 4431, the first eccentric gear 4433 can rotate eccentrically about the connecting through hole 4435 and the power output end of the drive motor 442 as its axis.

[0047] Optionally, both sides of the second eccentric gear 4434 are provided with connecting posts 4436 adapted to the ends of the follower fork 444, and the follower fork 444 is rotatably connected to the connecting posts 4436; the second eccentric gear 4434 rotates synchronously with the first eccentric gear 4433 around the connecting posts 4436 as its axis. Thus, the connecting posts 4436 are restricted by the follower fork 444 and the sliding groove 4412. During the engagement of the second eccentric gear 4434 with the first eccentric gear 4433 and its synchronous eccentric rotation, the connecting posts 4436 reciprocate along the sliding groove 4412 along with the follower fork 444. Simultaneously, the follower post and the connecting through hole 4435 are always on the same straight line.

[0048] like Figure 4 and Figure 5 As shown, a material carrier plate 46 is connected to the top of the movable plate 43, and the surface of the material carrier plate 46 is provided with multiple material perforations 461. In this way, the cotton yarn to be processed is connected to the material carrier plate 46 through the material perforations 461, and then connected to the licker-in roller 3. The connection through the material perforations 461 allows the cotton yarn to move with the swing mechanism 4, thereby increasing the contact area with the licker-in roller 3.

[0049] like Figure 3 As shown, the cleaning mechanism 5 includes a water tank 51, spray pipes 52, and a squeezing assembly 53. The water tank 51 is fixed in the middle of the main frame 1, and multiple spray pipes 52 fixed to the main frame 1 are arranged above it. The squeezing assembly 53 is rotatably connected to the main frame 1 and is located above one end of the water tank 51. Thus, the cotton yarn, fully spread by the licker-in roller 3, moves at a uniform speed above the water tank 51 and passes between the spray pipes 52. When the cotton yarn passes between the spray pipes 52, the spray pipes 52 rinse the cotton yarn from both above and below, thus washing away any impurities attached to the cotton yarn. The rinsed impurities fall into the water tank 51 with the water flow. After rinsing, the cotton yarn enters through one end of the squeezing assembly 53. Through the squeezing of the squeezing assembly 53, most of the washing water remaining in the cotton yarn is squeezed out, which facilitates subsequent drying and grading screening.

[0050] Optionally, the water outlet direction of the nozzle 52 forms an acute angle with the direction of cotton yarn travel, and the nozzles 52 are distributed on the upper and lower sides of the cotton yarn's travel direction. In this way, the rinsing path of the nozzles 52 located on both sides of the cotton yarn forms a side "V" shape, and the apex of the water flow can create a counter-current effect with the cotton yarn, effectively improving the rinsing effect on impurities. At the same time, the side "V" shaped rinsing method can block the rinsed impurities and water flow, reducing the amount of water remaining in the washed cotton yarn, which is beneficial for subsequent drying and grading / screening.

[0051] Optionally, a water pump 55 is fixed to one side of the water tank; and one end of the water pump 55 is connected to the water tank 51, and the other end is connected to the spray pipe 52.

[0052] Optionally, the water pump 55 can also be connected to an external water network. In this way, the water pump 55 has two water supply methods: one is to reuse the water in the water tank 51 after filtration; the other is to connect directly to the external water network. Compared with the water tank supply method, the direct connection to the external water network can avoid contamination of the cotton yarn by the reused water source.

[0053] Optionally, the water tank is equipped with multiple removable filter elements. These filter elements are existing technology and will not be described in detail.

[0054] Optionally, the dewatering assembly 53 consists of a fixed roller 531 and a squeezing roller 532. The fixed roller 531 is rotatably connected to the main frame 1, and the squeezing roller 532 is located on one side of the fixed roller 531 and slidably connected to the main frame 1. In this way, when the washed cotton yarn passes between the fixed roller 531 and the squeezing roller 532, the squeezing roller 532 slides towards the fixed roller 531, continuously applying squeezing pressure to the cotton yarn to squeeze out the water.

[0055] like Figure 3 , Figure 8 and Figure 9 As shown, both ends of the squeezing assembly 53 are connected to pressure assemblies 54 that are fixed to the main frame 1. In this way, by installing pressure assemblies 54 at both ends of the squeezing roller 532, the squeezing roller 532 is provided with squeezing power, so that the squeezing roller 532 can always apply squeezing force towards the fixed roller 531.

[0056] Optionally, the pressurizing assembly 54 includes a fixing block 541, a pull plate 542, and spring rods 543. The fixing block 541 is fixedly connected to the main frame 1, and the pull plate 542 is rotatably connected to the end of the extrusion roller 532. Multiple spring rods 543 are provided, one end of which is fixedly connected to the fixing block 541, and the other end is fixedly connected to the pull plate 542. Thus, the pulling force of the spring rods 543 can drive the extrusion roller 532 to continuously apply extrusion pressure towards the fixing roller 531.

[0057] like Figure 10As shown, the drying mechanism 6 is equipped with a hot air assembly 61, which is distributed in parallel within the drying mechanism 6. In this way, the cotton yarn, after being initially dehydrated by the dewatering assembly 53, enters the drying mechanism 6 from one end, passes through the parallel hot air assemblies 61, and exits from the other end, completing the drying process.

[0058] Optionally, the down-collecting mechanism 7 is fixedly connected to the main frame 1, and its top is equipped with multiple suction pipes 71 extending into the drying mechanism 6, with the suction pipes 71 also distributed on the upper and lower sides of the cotton yarn path. In this way, the dried cotton yarn is relatively fluffy, and some short fibers that do not meet the required length are fully exposed. These short fibers can be separated from the main cotton yarn through the suction pipes 71, thereby achieving the purpose of grading and screening. Simultaneously, the separated short fibers are collected in the down-collecting mechanism 7 for use in the manufacture of other products.

[0059] It is understandable that the drying mechanism 6 and the lint collection mechanism 7 are existing technologies, and their internal structure and working principle will not be described in detail.

[0060] Specific working methods:

[0061] 1. The end of the cotton yarn is placed on the surface of the first licker-in roller through the swing mechanism. At this time, the middle of the cotton yarn is in contact with the first roller, and its end is hooked by the first licker-in roller.

[0062] 2. Rotate the first licker-in roller to move the end of the cotton yarn to the surface of the second licker-in roller, and then move it around one side of the second licker-in roller to the position of the second roller;

[0063] 3. Pass the cotton yarn end through the nozzles and move it to the position of roller number three; then move it around the bottom of roller number four to the position of the dewatering assembly;

[0064] 4. After passing through the water-squeezing assembly, the cotton yarn comes into contact with roller number five and is embedded in the drying mechanism; its end passes through the space between the hot air assembly and the suction pipe in sequence, and is then led out by roller number six.

[0065] 5. Mark the position of the cotton yarn on roller number one at this time;

[0066] 6. After connection is complete, start the equipment. The second licker roller, cleaning mechanism, and dewatering assembly will begin operation.

[0067] 7. When the recording position reaches the drying mechanism position, start the drying mechanism and the lint collection mechanism;

[0068] 8. When the recording position reaches the position of roller number six, the cotton yarn is cut off at the recording position, and the cutting position is connected to the external twisting and gathering device;

[0069] 9. Record the location where the cotton yarn at the front end is cut off and recycle it for other uses, and the back end is cleaned, graded and screened normally.

[0070] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cotton yarn washing machine capable of grading and screening, comprising a main frame (1), characterized in that: The main frame (1) is provided with multiple rollers (2) and piercing rollers (3), and a swing mechanism (4) is fixed between one end of the roller (2) and the piercing roller (3); a cleaning mechanism (5) is fixed in the middle of the main frame (1), located between two rollers (2); a drying mechanism (6) is fixed at the top of one end of the main frame (1), and a down collection mechanism (7) is fixed to the main frame (1) below the drying mechanism (6), and the drying mechanism (6) and the down collection mechanism (7) are connected.

2. The cotton yarn washing machine capable of grading and screening according to claim 1, characterized in that: The swing mechanism (4) includes a main board body (41), a limiting wheel (42), a movable plate (43), and a drive assembly (44). There are multiple limiting wheels (42) and they are fixed to one side of the main board body (41). The movable plate (43) is embedded between the limiting wheels (42). The drive assembly (44) is fixed to the other side of the main board body (41), and one end of it is fixedly connected to the movable plate (43). Both ends of the main board body (41) are connected to elastic seats (45).

3. A cotton yarn washing machine capable of grading and screening according to claim 2, characterized in that: The drive assembly (44) includes a housing (441), a drive motor (442), an eccentric wheel assembly (443), and a follower fork (444). The housing (441) has a slot (4411) on its inner side, and the eccentric wheel assembly (443) is movably disposed in the slot (4411). The drive motor (442) is fixed on one side of the housing (441), and its power output end is fixedly connected to the eccentric wheel assembly (443). The follower fork (444) is embedded in the slot (4411) of the housing (441) and is movably connected to the housing (441) and the eccentric wheel assembly (443). The other end is fixed with a connecting rod (445), and the connecting rod (445) is fixedly connected to the movable plate (43).

4. A cotton yarn washing machine capable of grading and screening according to claim 3, characterized in that: The eccentric wheel assembly (443) is composed of a first clamping plate (4431) and a second clamping plate (4432) arranged in parallel, and a first eccentric gear (4433) and a second eccentric gear (4434) meshing with each other are embedded between them; wherein the first eccentric gear (4433) is fixedly connected to the power output end of the drive motor (442); and the second eccentric gear (4434) is rotatably connected to the follower fork (444).

5. A cotton yarn washing machine capable of grading and screening according to claim 2, characterized in that: The top of the movable plate (43) is connected to a material carrier plate (46), and the surface of the material carrier plate (46) is provided with multiple material perforations (461).

6. A cotton yarn washing machine capable of grading and screening according to claim 1, characterized in that: The cleaning mechanism (5) includes a water tank (51), a spray pipe (52), and a water squeezing assembly (53). The water tank (51) is fixed in the middle of the main frame (1), and multiple spray pipes (52) fixed to the main frame (1) are provided above it. The water squeezing assembly (53) is rotatably connected to the main frame (1) and is located above one end of the water tank (51).

7. A cotton yarn washing machine capable of grading and screening according to claim 6, characterized in that: Both ends of the dewatering assembly (53) are connected to a pressurizing assembly (54) that is fixed to the main frame (1).

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