Flat cleaning device for carding machine, carding machine and flat cleaning method

Abstract

A flat cleaning device for a carding machine, the flat cleaning device comprising a flat brush roller, a brush roller shield (2), a cover (5), a dust removal blade (4), a partition plate (6), a flat suction hood (7), and a transmission device, wherein the flat brush roller is a high-speed flat brush roller (3) configured to clean rotary flat clothing, the brush roller shield (2) covers the upper half of the high-speed flat brush roller, and the flat suction hood (7) is arranged diagonally below the high-speed flat brush roller (3); and the flat suction hood (7) is connected to the lower end of the partition plate (6), the dust removal blade (4) is connected to the upper end of the partition plate (6), the upper end of the cover (5) is connected to the brush roller shield, the lower end of the cover (5) is connected to the flat suction hood (7), and the brush roller shield (2), the flat suction hood (7), the cover (5) and the partition plate (6) form an impurity removal channel (8). The high-speed flat brush roller (3) rotates at a high speed to create a boundary layer airflow attraction effect and a mechanical crushing effect, so as to deeply clean up fibers, impurities, linters, etc. on the rotary flat clothing. The present invention further relates to a carding machine and a flat cleaning method. The flat cleaning device can avoid the problems of the tangling, fall-out and flammability of clothing caused by a collision between the flat brush roller and a cleaning roller in existing flat cleaning devices.

Description

A carding machine cover cleaning device, a carding machine, and a cover cleaning method. Technical Field

[0001] This invention belongs to the field of textile machinery manufacturing technology, and relates to the improvement of carding machines, specifically a carding machine cover plate cleaning device, carding machine, and cover plate cleaning method. Background Technology

[0002] The carding machine is a crucial part of the cotton spinning process. Its preceding process is the opening and cleaning machine, and its subsequent process is the drawing frame. It is mainly used to card pure cotton, chemical fibers, and their blends. The raw material is fed into the cotton box, and through a series of mechanical actions, the crimped cotton fibers are carded into a basically straight fiber state, and impurities are removed, ultimately forming a sliver for use in subsequent spinning processes.

[0003] The carding zone, specifically the cylinder-flat carding area, is the core of the carding machine and is crucial for ensuring carding quality and meeting increasingly stringent product quality standards. It requires regular removal of accumulated lint and impurities from the flat carding cloth. Therefore, an efficient flat cleaning system plays a key role in maintaining the cleanliness of the flat carding cloth. The flat brush roller and the rotating flat card are spaced at a negative distance, meaning the carding cloth on the brush roller and the carding cloth on the rotating flat card are staggered. The brush roller and cleaning roller work together to clean the rotating flat card. Current carding machines generally employ the following strategy: First, a slowly rotating brush roller strips short fibers and impurities from the rotating flat carding cloth, causing them to adhere to the brush roller surface. Then, a rapidly rotating cleaning roller removes these deposits from the brush roller surface and draws them into the dust filtration system via an air intake. This cycle ensures the continuous cleanliness of the brush roller, thereby effectively removing lint and impurities from the flat card.

[0004] However, in actual production, the cleaning roller often fails to effectively remove lint from the cover brush roller, leading to an increasing accumulation of lint on the brush roller surface. This lint then becomes entangled on the surfaces of the cover brush roller and cleaning roller, forcing the high-speed cleaning roller to stop due to external forces. This prevents timely and effective cleaning of the rotating cover carding cloth, negatively impacting the carding effect and increasing the time required to clean the cover carding cloth, cover brush roller, and cleaning roller. Furthermore, the accumulated lint and impurities on the cover brush roller surface not only increase the resistance of the rotating cover carding cloth but also cause compression at the contact point. Since the distance between them cannot be adjusted, this can sometimes damage the rotating cover carding cloth and the cover brush roller carding cloth. This situation further increases the amount of knots and impurities, causing equipment malfunctions and directly interfering with production efficiency and product quality.

[0005] Therefore, there is an urgent need in this field to design a carding machine cover plate cleaning device, a carding machine, and a cover plate cleaning method to solve the problem that the cover plate brush roller and cleaning roller are unable to completely transfer cotton fibers, resulting in the cover plate brush roller getting tangled and fire caused by severe tangling. At the same time, it can also solve the problem of needle cloth falling off due to the small gap between the cover plate brush roller and cleaning roller. Summary of the Invention

[0006] To address the aforementioned problems in the prior art, this invention provides a carding machine cover plate cleaning device, a carding machine, and a cover plate cleaning method. The carding machine cover plate cleaning device employs a high-speed brush roller for the cover plate, utilizing the adsorption effect of the boundary layer airflow generated by its high-speed rotation and the mechanical crushing effect to achieve deep cleaning of the rotating cover plate.

[0007] The objective of this invention is achieved through the following technical solution:

[0008] A carding machine cover cleaning device includes a cover brush roller, a brush roller guard, a cover, a dust removal knife, a partition, a cover suction hood, and a transmission device. The cover brush roller is a high-speed brush roller used to clean the carding cloth of the rotating cover near its rear side. The brush roller guard covers the upper half of the high-speed brush roller. The cover suction hood is positioned diagonally below the high-speed brush roller, with its bottom connected to the lower end of the inclined partition. The dust removal knife is connected to the upper end of the partition and is close to the high-speed brush roller. The upper end of the cover is connected to the brush roller guard, and the lower end of the cover is connected to the cover suction hood. The brush roller guard, cover suction hood, cover, and partition form a cleaning channel. The transmission device drives the high-speed brush roller to rotate at high speed, utilizing the boundary layer airflow adsorption and mechanical pulverization to achieve deep cleaning of cotton lint and impurities on the rotating cover carding cloth.

[0009] Improvement to the above technical solution: The rotational speed range of the high-speed brush roller of the cover plate is 1200-2300 rpm.

[0010] A further improvement to the above technical solution: the transmission device is a motor and transmission components that drive the high-speed brush roller of the cover plate to rotate independently.

[0011] Further improvements to the above technical solution: The impurity removal channel has a streamlined design, and the cover suction cover is made of aluminum alloy or sheet metal as an integral structure with a smooth and clean inner wall.

[0012] Further improvement to the above technical solution: The bearing sleeves of the bearings at both ends of the high-speed brush roller of the cover plate are eccentric sleeves, which are used to adjust the distance between the high-speed brush roller of the cover plate and the rotary cover plate.

[0013] An improvement to the above technical solution: a support plate is provided below the cover plate high-speed brush roller near the partition plate. The length of the support plate is the same as the length of the cover plate high-speed brush roller. The top surface of the support plate is an arc-shaped surface or a flat surface. The support plate is detachably installed on the support plate bracket, and the installation position of the support plate on the support plate bracket can be adjusted to realize the distance adjustment between the support plate and the rotary cover plate.

[0014] Another improvement to the above technical solution: A support plate is provided below the high-speed brush roller of the cover plate near the partition. The length of the support plate is the same as the length of the high-speed brush roller of the cover plate. The top surface of the support plate is an arc-shaped surface or a flat surface. An electric telescopic cylinder is installed on the partition plate or bracket. The telescopic rod of the electric telescopic cylinder is fixedly connected to the support plate and is used to drive the support plate to adjust the distance between the support plate and the rotary cover plate.

[0015] A carding machine, the carding machine body includes a rotary cover plate, two side wall plates, a cover plate cleaning device and a control system, characterized in that the cover plate cleaning device adopts the above-mentioned carding machine cover plate cleaning device, the two side wall plates enclose the two sides of the impurity removal channel in the carding machine cover plate cleaning device, and the high-speed brush roller of the cover plate is set at the rear side of the rotary cover plate, and the two maintain a certain distance.

[0016] A method for cleaning the cover plate of the carding machine described above, comprising using a carding machine cover plate cleaning device to clean the rotating cover plate, characterized in that the cover plate cleaning method includes the following steps:

[0017] Step 1: The high-speed brush roller of the cover plate and the rotary cover plate maintain the gap. The transmission device drives the high-speed brush roller of the cover plate to rotate at a high speed of 1200-2300 rpm. The adsorption effect of the boundary layer airflow and mechanical crushing effect generated when the high-speed brush roller of the cover plate rotates at high speed are used to achieve deep cleaning of cotton and impurities on the needle cloth of the rotary cover plate.

[0018] Step 2: Use the dust removal knife to remove the remaining cotton fibers on the high-speed brush roller of the cover plate. Then, with the support of the partition, ensure that the cotton fibers and impurities enter the cover plate suction hood smoothly. Use the wind power to suck the cotton fibers and impurities thrown out by the high-speed brush roller of the cover plate into the dust filter pipe.

[0019] Improvements to the above technical solution: The motor driving the high-speed brush roller of the cover plate is a variable frequency motor or a servo motor. The carding machine includes a control system, which is connected to the control terminals of the variable frequency motor and the electric telescopic cylinder. The distance between the support plate and the rotating cover plate is 30-60mm. The control system controls the variable frequency motor or servo motor to adjust the rotation speed of the high-speed brush roller of the cover plate. Based on the actual rotation speed of the high-speed brush roller of the cover plate, the control system adjusts the distance between the support plate and the rotating cover plate. If the actual rotation speed of the high-speed brush roller of the cover plate is increased, the distance between the support plate and the rotating cover plate is decreased; if the actual rotation speed of the high-speed brush roller of the cover plate is decreased, the distance between the support plate and the rotating cover plate is increased.

[0020] Compared with the prior art, the present invention has the following advantages and positive effects:

[0021] (1) The cover plate cleaning device of the present invention uses a high-speed brush roller for the cover plate alone, which can avoid the problems of tangling, needle cloth falling off and fire caused by the collision between the cover plate brush roller and the cleaning roller in the existing cover plate cleaning device;

[0022] (2) The present invention improves the rotation speed of the high-speed brush roller of the cover plate (1200-2300rpm). When the high-speed brush roller of the cover plate rotates at high speed, it can break up and transfer cotton wool and impurities, thereby achieving deep cleaning of the rotating cover plate.

[0023] (3) The present invention is equipped with a dust removal knife and a partition. The dust removal knife removes the residual cotton wool on the brush roller, effectively reducing the entanglement of the high-speed brush roller on the cover plate. Under the support of the partition, the cotton wool and impurities are ensured to enter the cover plate suction cover smoothly.

[0024] (4) The impurity removal channel of the present invention has a streamlined design, and the cover suction cover is made of aluminum alloy as an integral structure. Its inner wall has a smooth and clean surface, which is combined with fluid mechanics to reduce wind resistance and remove cotton lint and impurities smoothly.

[0025] (5) The present invention uses a separate motor to drive the cover plate and high-speed brush roller, which makes the process speed adjustment flexible and convenient;

[0026] (6) The present invention provides a support plate near the partition plate below the high-speed brush roller of the cover plate. The distance between the support plate and the rotary cover plate can be adjusted according to the amount of blemishes on the rotary cover plate and the cleaning needs, so as to effectively control the airflow of the high-speed brush roller of the rotary cover plate and make the high-speed brush roller of the cover plate completely clean the blemishes on the rotary cover plate through the airflow. Attached Figure Description

[0027] Figure 1 is a schematic diagram of the overall structure of a carding machine cover cleaning device according to the present invention;

[0028] Figure 2 is a schematic diagram of the transmission mechanism in a carding machine cover cleaning device of the present invention;

[0029] Figure 3 is a partial top view of Figure 2;

[0030] Figure 4 is a block diagram of the control principle of a carding machine according to the present invention.

[0031] The following are the labels in the diagram: 1. Rotary cover plate; 2. Brush roller guard; 3. High-speed brush roller cover plate; 4. Dust removal knife; 5. Cover plate; 6. Partition plate; 7. Cover plate suction hood; 8. Impurity removal channel; 9. Pallet plate; 10. Pallet plate bracket; 11. Motor. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] Referring to Figures 1-3, an embodiment of a carding machine cover cleaning device of the present invention includes a cover brush roller, a brush roller cover 2, a cover 5, a dust removal knife 4, a partition 6, a cover suction hood 7, and a transmission device. The cover brush roller is a high-speed cover brush roller 3, used to clean the carding cloth of the rotating cover 1 near its rear side. The brush roller cover 2 covers the upper half of the high-speed cover brush roller 3, and the cover suction hood 7 is positioned diagonally below the high-speed cover brush roller 3. The bottom of the cover suction hood 3 is connected to the lower end of the inclined partition 6. The dust removal knife 4 is connected to the upper end of the partition 6 and is close to the high-speed cover brush roller 3. The cover 5 covers the brush roller cover 2 and the cover suction hood 7, with the upper end of the cover hood 5 connected to the brush roller cover 2 and the lower end of the cover hood 5 connected to the cover suction hood 7. The brush roller cover 2, the cover hood 5, the cover suction hood 7, and the partition 6 form a cleaning channel 8. The aforementioned transmission device drives the high-speed brush roller 3 of the cover plate to rotate at high speed, utilizing the boundary layer airflow adsorption and mechanical crushing effect to achieve deep cleaning of cotton lint and impurities on the needle cloth of the rotating cover plate 1.

[0034] The rotational speed range of the aforementioned high-speed brush roller 3 is 1200-2300 rpm, preferably 1800-2000 rpm.

[0035] Furthermore, the aforementioned transmission device comprises a motor 11 and transmission components that independently drive the high-speed brush roller 3 of the cover plate. As shown in Figure 3, the transmission components can be pulleys and a transmission belt. A pulley is mounted on the drive shaft of the motor 11, and another pulley is mounted on the shaft of the high-speed brush roller 3 of the cover plate. The transmission belt is looped around the two pulleys, thus achieving transmission of the high-speed brush roller 3 of the cover plate. To flexibly control the rotational speed of the high-speed brush roller 3 of the cover plate, the aforementioned motor 11 can be a variable frequency motor.

[0036] Furthermore, the aforementioned impurity removal channel 8 has a streamlined design, and the cover suction hood 7 is made of aluminum alloy or sheet metal in one piece, with a smooth and clean inner wall.

[0037] Furthermore, bearings and bearing sleeves are provided at both ends of the aforementioned high-speed brush roller 3. The bearing sleeves are eccentric sleeves used to adjust the distance between the high-speed brush roller 3 and the rotating cover plate 1. The bearing sleeves at both ends of the high-speed brush roller 3 can be respectively installed on the side walls. Preferably, the distance between the high-speed brush roller 3 and the rotating cover plate 1 is in the range of 0.1-1mm.

[0038] To effectively control the airflow generated by the high-speed brush roller 3 during its high-speed rotation, a support plate 9 is installed below the high-speed brush roller 3 near the partition plate 6. The distance between the support plate 9 and the rotating cover plate 1 can be adjusted according to the amount of smudges on the rotating cover plate 1 and the cleaning requirements, thereby effectively controlling the airflow of the high-speed brush roller 3 and ensuring that the high-speed brush roller 3 completely cleans the smudges off the rotating cover plate 1 using the airflow. The support plate 9 has the following two specific implementation methods:

[0039] The first implementation method is as follows: the length of the support plate 9 is the same as the length of the high-speed brush roller 3 of the cover plate. The top surface of the support plate 9 is an arc-shaped surface or a flat surface. The support plate 9 is detachably installed on the support plate bracket 10, and the position of the support plate 9 on the support plate bracket 10 is adjustable. In specific manufacturing, the support plate bracket 10 can be directly installed on the side of the partition plate 6, or the support plate bracket 10 can also be installed on the wall panels on both sides of the carding machine. In specific implementation, elongated holes can be made in the support plate bracket 10 and the support plate 9, and they can be connected by bolts. This allows the position of the support plate 9 on the support plate bracket 10 to adjust the distance between the support plate 9 and the rotary cover plate 1. In use, the distance between the support plate 9 and the rotary cover plate 1 can be adjusted according to the amount of cotton on the rotary cover plate 1 and the cleaning needs, so as to effectively control the airflow of the high-speed brush roller 3 of the cover plate, so that the high-speed brush roller 3 of the cover plate can completely clean the cotton on the rotary cover plate 1 through the airflow.

[0040] The second implementation is as follows: the length of the support plate 9 is the same as the length of the high-speed brush roller 3 of the cover plate. The top surface of the support plate 9 is an arc-shaped surface or a flat surface. An electric telescopic cylinder (not shown) is installed on the partition plate 6 or the bracket. The telescopic rod of the electric telescopic cylinder is fixedly connected to the support plate 9 and is used to drive the support plate 9 to adjust the distance between the support plate 9 and the rotating cover plate 1. The bracket can be installed on the wall panels on both sides of the carding machine. In use, the distance between the support plate 9 and the high-speed brush roller 3 of the cover plate is adjusted by adjusting the extension length of the telescopic rod of the electric telescopic cylinder.

[0041] In both of the above embodiments, the distance between the pallet 9 and the rotating cover plate 1 is 30-60mm; preferably, the distance between the pallet 9 and the rotating cover plate 1 is 40-50mm.

[0042] Referring to Figures 1-3, an embodiment of a carding machine according to the present invention includes a rotating cover plate 1, two side wall plates, and a cover plate cleaning device. The cover plate cleaning device adopts the carding machine cover plate cleaning device of the above embodiment. The two side wall plates enclose the two sides of the impurity removal channel in the carding machine cover plate cleaning device. The high-speed brush roller 3 of the cover plate is located at the rear side of the rotating cover plate 1, and the two maintain a certain distance. Bearings and bearing sleeves are provided at both ends of the high-speed brush roller 3 of the cover plate. The bearing sleeves are eccentric sleeves, used to adjust the distance between the high-speed brush roller 3 of the cover plate and the rotating cover plate 1. Preferably, the distance between the high-speed brush roller 3 of the cover plate and the rotating cover plate 1 is in the range of 0.1-1mm. The bearing sleeves at both ends of the high-speed brush roller 3 of the cover plate are respectively provided on the two side wall plates. The above embodiment describes the specific structure of the carding machine cover plate cleaning device in detail, so it will not be repeated here.

[0043] Referring to Figures 1-4, an embodiment of the above-described carding machine cover cleaning method of the present invention is shown. The carding machine cover cleaning device is used to clean the rotary cover 1. The cover cleaning method includes the following steps:

[0044] Step 1: The transmission device drives the high-speed brush roller 3 of the cover plate to rotate at a high speed of 1200-2300 rpm. The high-speed brush roller 3 of the cover plate generates a boundary layer airflow adsorption and mechanical crushing effect to achieve deep cleaning of cotton lint and impurities on the needle cloth of the rotating cover plate 1.

[0045] Step 2: Use the dust removal knife 4 to remove the remaining cotton fibers on the high-speed brush roller 3 of the cover plate. Then, under the support of the partition plate 6, ensure that the cotton fibers and impurities enter the cover plate suction hood 7 smoothly. Use the wind power to suck the cotton fibers and impurities thrown out by the high-speed brush roller 3 of the cover plate into the dust filter pipe.

[0046] Furthermore, the motor 11 driving the high-speed brush roller of the cover plate is a variable frequency motor (or servo motor). The carding machine also includes a control system, which is connected to the control end of the variable frequency motor (or servo motor) and the electric telescopic cylinder driving the support plate 9. The control system controls the variable frequency motor (or servo motor) to adjust the rotation speed of the high-speed brush roller 3 driving the cover plate. Based on the actual rotation speed of the high-speed brush roller 3, the control system adjusts the distance between the support plate 9 and the rotating cover plate 1. If the actual rotation speed of the high-speed brush roller 3 is increased, the distance between the support plate 9 and the rotating cover plate 1 is decreased; if the actual rotation speed of the high-speed brush roller 3 is decreased, the distance between the support plate 9 and the rotating cover plate 1 is increased. The distance between the high-speed brush roller 3 and the rotary cover plate 1 is 0.1-1mm, preferably 0.2-0.3mm; the distance between the support plate 9 and the rotary cover plate 1 is 30-60mm, preferably 40-50mm.

[0047] Furthermore, as shown in Figure 4, to achieve automatic control, the aforementioned control system includes a speed and spacing calculation module and a drive control module. The speed and spacing calculation module is used to calculate the spacing between the support plate 9 and the rotating cover plate 1, matching the speed of the high-speed brush roller 3. In use, the operating speed of the high-speed brush roller 3 is input into the control system. The speed and spacing calculation module calculates the spacing between the support plate 9 and the rotating cover plate 1 and sends the information to the drive control module. The drive control module automatically controls the variable frequency motor (or servo motor) to drive the high-speed brush roller 3 to rotate at a set operating speed and automatically controls the electric telescopic cylinder to move the support plate 9 to the spacing matching the rotating cover plate 1. In this way, the airflow of the high-speed brush roller 3 can be effectively controlled, allowing the high-speed brush roller 3 to completely clean the cover flowers on the rotating cover plate 1 through the airflow.

[0048] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A carding machine cover cleaning device, comprising a cover brush roller, a brush roller guard, a cover, a dust removal knife, a partition, a cover suction cover, and a transmission device, characterized in that, The cover plate brush roller is a high-speed cover plate brush roller, which is used to clean the rotary cover plate needle cloth near the rear side of the rotary cover plate. The brush roller cover covers the upper half of the high-speed cover plate brush roller, and the cover plate suction cover is set diagonally below the high-speed cover plate brush roller. The bottom of the cover plate suction cover is connected to the lower end of the inclined partition. The dust removal knife is connected to the upper end of the partition and is close to the high-speed cover plate brush roller. The upper end of the cover is connected to the brush roller cover, and the lower end of the cover is connected to the cover plate suction cover. The brush roller cover, cover plate suction cover, cover, and partition form a dirt removal channel. The transmission device drives the high-speed cover plate brush roller to rotate at high speed, using the boundary layer airflow adsorption and mechanical crushing action to achieve deep cleaning of cotton wool and impurities on the rotary cover plate needle cloth.

2. The carding machine cover cleaning device according to claim 1, characterized in that, The rotational speed range of the high-speed brush roller of the cover plate is 1200-2300 rpm.

3. The carding machine cover cleaning device according to claim 1 or 2, characterized in that, The transmission device is a motor and transmission components that drive the high-speed brush roller of the cover plate to rotate independently.

4. The carding machine cover cleaning device according to claim 1 or 2, characterized in that, The impurity removal channel has a streamlined design, and the cover suction cup is made of aluminum alloy or sheet metal as an integral structure with a smooth and clean inner wall.

5. The carding machine cover cleaning device according to claim 1 or 2, characterized in that, The bearing sleeves at both ends of the high-speed brush roller of the cover plate are eccentric sleeves, which are used to adjust the distance between the high-speed brush roller of the cover plate and the rotary cover plate.

6. The carding machine cover cleaning device according to claim 1 or 2, characterized in that, A support plate is provided below the cover plate high-speed brush roller near the partition. The length of the support plate is the same as the length of the cover plate high-speed brush roller. The top surface of the support plate is an arc-shaped surface or a flat surface. The support plate is detachably mounted on a support plate bracket, and the mounting position of the support plate on the support plate bracket can be adjusted to realize the distance adjustment between the support plate and the rotary cover plate.

7. The carding machine cover cleaning device according to claim 1 or 2, characterized in that, A support plate is provided below the cover plate high-speed brush roller near the partition. The length of the support plate is the same as the length of the cover plate high-speed brush roller. The top surface of the support plate is an arc-shaped surface or a flat surface. An electric telescopic cylinder is installed on the partition plate or bracket. The telescopic rod of the electric telescopic cylinder is fixedly connected to the support plate and is used to drive the support plate to adjust the distance between the support plate and the rotary cover plate.

8. A carding machine, the carding machine body comprising a rotating cover plate, two side wall plates, and a cover plate cleaning device, characterized in that, The cover plate cleaning device adopts the carding machine cover plate cleaning device according to any one of claims 1-7. The wall panels on both sides enclose the two sides of the impurity removal channel in the carding machine cover plate cleaning device. The high-speed brush roller of the cover plate is set at the rear side of the rotating cover plate, and the two maintain a certain distance.

9. A method for cleaning the cover plate of a carding machine as described in claim 8, comprising using a carding machine cover plate cleaning device to clean the rotary cover plate, characterized in that... The method for cleaning the cover plate includes the following steps: Step 1: The transmission device drives the high-speed brush roller of the cover plate to rotate at a high speed of 1200-2300 rpm. The high-speed brush roller of the cover plate generates a boundary layer airflow adsorption and mechanical crushing effect to achieve deep cleaning of cotton lint and impurities on the rotary cover plate needle cloth. Step 2: Use the dust removal knife to remove the remaining cotton fibers on the high-speed brush roller of the cover plate. Then, with the support of the partition, ensure that the cotton fibers and impurities enter the cover plate suction hood smoothly. Use the wind power to suck the cotton fibers and impurities thrown out by the high-speed brush roller of the cover plate into the dust filter pipe.

10. The method for cleaning the cover plate of a carding machine according to claim 9, characterized in that, The motor driving the high-speed brush roller of the cover plate is a variable frequency motor or a servo motor. The carding machine includes a control system, which is connected to the control terminal driving the variable frequency motor and the electric telescopic cylinder. The distance between the support plate and the rotating cover plate is 30-60mm. The control system controls the variable frequency motor or servo motor to adjust the speed of the high-speed brush roller of the cover plate. According to the actual speed of the high-speed brush roller of the cover plate, the control system controls the electric telescopic cylinder to adjust the distance between the support plate and the rotating cover plate. If the actual speed of the high-speed brush roller of the cover plate is increased, the distance between the support plate and the rotating cover plate is decreased; if the actual speed of the high-speed brush roller of the cover plate is decreased, the distance between the support plate and the rotating cover plate is increased.

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