Carding device of carding machine and adjusting method

Abstract

The invention provides a carding device of a carding machine and an adjusting method.The carding device of the carding machine comprises a rack, a carding plate outer cover, a carding plate rack, a carding plate base, an adjusting tongue plate, an adjusting pointer, a scale plate and a control system, one end of the adjusting tongue plate is rotationally connected with one side of the carding plate outer cover through a rotating shaft, and the adjusting pointer is fixed to the rotating shaft; the device is characterized in that an adjusting tongue plate motor drives the rotating shaft to rotate through a transmission mechanism, and the control system is connected with the control end of the adjusting tongue plate motor and controls the adjusting tongue plate motor to rotate forwards or backwards. And the adjusting tongue plate and the adjusting pointer are driven to rotate by a certain angle clockwise or anticlockwise. On the premise of ensuring the product quality index, the proper noil amount is accurately controlled, the waste of raw materials is reduced, and the impurity removal effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of textile machinery manufacturing, and relates to the improvement of a carding machine, in particular to a carding device and an adjustment method for the carding machine. Background Art

[0002] The carding machine is a crucial component of the cotton spinning process. It precedes the opening and cleaning machine and is followed by the draw frame. It is primarily used for carding pure cotton, chemical fibers, and their blends. Raw materials are fed from a cotton hopper. Through a series of mechanical processes, the curled cotton fibers are combed into a mostly straight state, and impurities are removed. The final result is sliver for the subsequent spinning process.

[0003] As labor costs rise, machine-picked cotton is gradually replacing manual cotton picking. This process inevitably introduces impurities such as leaves, straw, and film, increasing the impurity content of machine-picked cotton by approximately 20%-35% compared to manual cotton. The manual adjustment of traditional carding mechanisms results in a fluctuation in the noil content of up to ±5%, making it difficult to meet the requirements for cleaning high-impurity raw materials. Because machine-picked cotton contains a high concentration of impurities, these impurities easily become embedded in the card clothing during the carding process, resulting in poor web clarity. This situation places higher demands on the carding machine's impurity removal performance during machine-picked cotton processing.

[0004] The existing carding machine mainly includes a cotton feeding device, a cover plate, a cylinder, a doffer, a licker-in roller, and a combing device. The combing device has a pre-combing function to remove impurities. The combing device mainly includes a combing plate cover, a cotton support plate, a combing plate rack, a limit shaft, an adjustment tongue plate, and a combing plate base. The functions of the main components of the existing combing device and the main problems are: 1. The adjustable tongue plate, designed toward the fiber outlet of the carding device, can rotate and be manually adjusted to adjust the length of the second trash removal zone, thereby controlling the noil rate and the trash removal effect. However, since the adjustable tongue plate is manually adjusted, the main problems are inconvenience and low adjustment precision. The control accuracy of the tongue plate's rotation angle is usually only ±2°. In addition, manual adjustment of the tongue plate's rotation angle has a lag (adjustment response time >15 seconds), which cannot adapt to real-time changes in the raw material's trash content (for example, the impurity content between machine-picked cotton batches can fluctuate by 10%-15%). 2. The cotton support plate installed at one end of the carding plate outer cover can ensure that the fiber channel is sealed while adjusting the length S1 of the first trash drop zone. However, the cotton support plate and the carding plate outer cover are assembled into two parts, and there is a gap between them, which is easy to get scratched, and the installation space is also limited. 3. The combing plate base set above the combing plate base is used to install the combing plate rack. Since it is supported by aluminum profiles, it is easy to deform after being heated, which will cause problems with the needle connection with the licker-in roller.

[0005] Therefore, there is an urgent need in the art to design a carding machine carding device and an adjustment method to solve the above-mentioned problems and shortcomings in the prior art. Summary of the Invention

[0006] In order to solve the above-mentioned problems existing in the prior art, the present invention provides a carding machine combing device and an adjustment method. The structural design of the carding machine combing device is reasonable, and the rotation angle of the tongue plate can be adjusted conveniently and accurately, and the appropriate amount of cotton drop can be accurately controlled, thereby reducing raw material waste and improving the impurity removal effect. The adjustment method of the carding machine combing device is reasonably designed. Under the premise of ensuring product quality indicators, the appropriate amount of cotton drop can be accurately controlled in real time according to the change of the impurity content of the cotton drop, thereby reducing raw material waste and improving the impurity removal effect.

[0007] The purpose of the present invention is achieved through the following technical solutions: A combing device for a carding machine comprises a frame, a combing plate cover, a combing plate rack, a combing plate base, an adjusting tongue plate, an adjusting pointer, a scale plate and a control system, wherein one end of the adjusting tongue plate is rotatably connected to a side of the combing plate cover via a rotating shaft, the adjusting pointer is fixed on the rotating shaft, and the scale plate is close to the adjusting pointer and mounted on the frame. The device is characterized in that the rotating shaft is driven to rotate by an adjusting tongue plate motor through a transmission mechanism, and the control system is connected to the control end of the adjusting tongue plate motor to control the adjusting tongue plate motor to rotate forward or reverse, thereby driving the adjusting tongue plate and the adjusting pointer to rotate counterclockwise or clockwise by a certain angle, thereby accurately controlling the appropriate amount of cotton dropped.

[0008] Improvements to the above technical solution: the control system includes a PLC controller, a human-computer interaction interface and a cotton drop monitoring device, the PLC controller is connected to the control end of the adjusting tongue plate motor, the human-computer interaction interface is used to set the cotton drop impurity content C, the PLC controller includes a cotton drop impurity content data calculation module and an adjusting tongue plate control module, the cotton drop impurity content data calculation module is used to receive the cotton drop impurity content measured by the cotton drop monitoring device, and compare the received cotton drop impurity content with the set cotton drop impurity content C and send the result to the adjusting tongue plate control module, the adjusting tongue plate control module automatically controls the adjusting tongue plate motor to rotate forward or reverse by a certain angle according to the received data, drives the adjusting tongue plate and the adjusting pointer to rotate counterclockwise or clockwise by a certain angle, and accurately controls the appropriate cotton drop amount in real time.

[0009] Further improvement to the above technical solution: the rack mounting seat is installed on the combing plate base, and the rack mounting seat and the combing plate seat are fixedly connected into one body with multiple screws. The combing plate rack is installed on the rack mounting seat, and a threaded hole is provided on the side of the rack mounting seat, and a long screw is screwed into the threaded hole.

[0010] Further improvement of the above technical solution: an adjusting bolt is provided at each end of the combing plate seat, passing through the through hole on the combing plate base and the combing plate cover, and the head of the adjusting bolt is inserted into the T-slot of the rack mounting seat, and the combination of the combing plate base and the rack mounting seat is restricted within the combing plate cover by a locking nut, and a pressure spring is provided on each side of the combing plate base, the pressure spring is sleeved on the adjusting bolt, and is located between the combing plate cover and the rack mounting seat.

[0011] Further improvement to the above technical solution: the top surface of the regulating tongue plate is a smooth and clean surface, and is covered with a wear-resistant layer.

[0012] Improvement on the above technical solution: a cotton supporting plate is provided on the other side of the combing plate outer cover, and the combing plate outer cover and the cotton supporting plate are an integrated structure.

[0013] Further improvement to the above technical solution: the adjusting tongue plate motor is a stepping motor, the driving mechanism includes a synchronous pulley I, a synchronous belt and a synchronous pulley II, a synchronous pulley I is provided on the transmission shaft of the adjusting tongue plate motor, a synchronous pulley II is provided on the rotating shaft, and the synchronous belt is sleeved on the synchronous pulley I and the synchronous pulley II.

[0014] The present invention provides an adjustment method for the above-mentioned carding device of a carding machine, characterized in that the adjustment method comprises the following steps: Step 1: Set the waste content C in the human-computer interaction interface; Step 2: When the carding device of the carding machine is operating normally, the cotton waste monitoring device detects the cotton waste content and sends the measured cotton waste content data to the cotton waste content data calculation module. The cotton waste content data calculation module compares the received cotton waste content with the set cotton waste content C; Step 3: When the measured cotton drop impurity rate is less than the set cotton drop impurity rate C, the comparison result is sent to the adjusting tongue plate control module, and the adjusting tongue plate control module controls the adjusting tongue plate motor to rotate forward, drives the adjusting tongue plate 4 to rotate counterclockwise by a certain angle, so that the amount of cotton drop increases; when the measured cotton drop impurity rate is greater than the set cotton drop impurity rate C, the comparison result is sent to the adjusting tongue plate control module, and the adjusting tongue plate control module controls the adjusting tongue plate motor to rotate reversely, drives the adjusting tongue plate to rotate clockwise by a certain angle, so that the amount of cotton drop decreases.

[0015] Compared with the prior art, the present invention has the following advantages and positive effects: (1) The present invention has a reasonable structural design. The tongue plate angle detection unit is adjusted. The tongue plate rotation angle is adjusted by adjusting the tongue plate motor. The detection accuracy is ≤±0.1°, which can more accurately control the amount of cotton drop. Under the premise of ensuring product quality indicators, the waste of raw materials is reduced and the impurity removal effect is improved. Furthermore, the impurity content of cotton drop measured by the cotton drop monitoring device is compared with the set cotton drop impurity content C, and the tongue plate motor is controlled to rotate forward or reverse. The appropriate cotton drop amount can be accurately controlled in real time. Under the premise of ensuring product quality indicators, the waste of raw materials is reduced and the impurity removal effect is improved. (2) The outer cover of the carding plate and the cotton supporting plate of the present invention are designed as an integrated whole, which ensures that the airtightness of the fiber channel is guaranteed while adjusting the length of the first trash dropping area, making the airflow more stable; (3) The present invention adds an adjustable pressure spring, which is more flexible than the previous fixed spacing and can protect the combing elements; (4) The rack mounting seat of the present invention is provided with a threaded hole and a long screw is screwed in, which can enhance the rigidity of the rack mounting seat and prevent the problem of connecting with the needle roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a carding device of a carding machine installed below a licker-in roller; Figure 2 A three-dimensional diagram of a carding device of a carding machine according to the present invention; Figure 3 A schematic diagram of an end face of a carding device of a carding machine according to the present invention; Figure 4 Schematic diagram of a driving mechanism in a carding device of a carding machine according to the present invention; Figure 5 This is a principle block diagram of a control system for a carding device of a carding machine according to the present invention; Figure 6 This is a flow chart of a control method for a carding device of a carding machine according to the present invention.

[0017] The numbers in the figure are: 1. Combing plate outer cover; 1.1. Cotton supporting plate; 2. Combing plate rack; 3. Rack mounting seat; 4. Adjusting tongue plate; 5. Combing plate base; 6. Pressure spring; 7. Fiber layer; 8. Cotton feeding plate; 9. First dust removal knife; 10. First dust removal knife seat; 11. Second dust removal knife; 12. Adjusting tongue plate motor; 13. Synchronous pulley I; 14. Synchronous belt; 15. Rotating shaft; 16. Synchronous pulley II; S1, first debris dropping area; S2, second debris dropping area. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below with reference to the accompanying drawings.

[0019] See also Figure 1-Figure 5An embodiment of a carding device for a carding machine according to the present invention includes a frame, a carding plate housing 1, a carding plate rack 2, a carding plate base 5, an adjusting tongue plate 4, an adjusting pointer, a scale plate, and a control system. One end of the adjusting tongue plate 4 is rotatably connected to one side of the carding plate housing 1 via a rotating shaft 15. The adjusting pointer is fixed to the rotating shaft 15. The scale plate is adjacent to the adjusting pointer and is mounted on the frame. An adjusting tongue plate motor 12 drives the rotating shaft 15 to rotate via a transmission mechanism. The control system is connected to the control end of the adjusting tongue plate motor 12, controlling the adjusting tongue plate motor 12 to rotate forward or reverse, thereby driving the adjusting tongue plate 4 and the adjusting pointer to rotate counterclockwise or clockwise by a certain angle, thereby accurately controlling the appropriate amount of cotton noil.

[0020] like Figure 1 As shown, the carding device of the present invention is disposed below the licker-in roller of the carding machine and includes a feed plate 8, a first dust removal blade 9, a first dust removal blade holder 10, and a second dust removal blade 11. The first dust collection area S1 is located between the feed plate 8 and the first dust removal blade 9; the second dust collection area S2 is located between the regulating tongue plate 4 and the second dust removal blade 11. All of the above are prior art and will not be further described.

[0021] Furthermore, the control system includes a PLC controller, a human-machine interface, and a cotton drop monitoring device, and the PLC controller is connected to the control end of the regulating tongue plate motor. The human-machine interface is used to set the cotton drop impurity content C, and the PLC controller includes a cotton drop impurity content data calculation module and an regulating tongue plate control module. The cotton drop impurity content data calculation module is used to receive the cotton drop impurity content measured by the cotton drop monitoring device, and compare the received cotton drop impurity content with the set cotton drop impurity content C, and send the result to the regulating tongue plate control module; the regulating tongue plate control module automatically controls the regulating tongue plate motor 12 to rotate forward or reverse by a certain angle based on the received data, driving the regulating tongue plate 4 and the regulating pointer to rotate counterclockwise or clockwise by a certain angle. Under the premise of ensuring product quality indicators, the appropriate cotton drop amount can be accurately controlled in real time, reducing raw material waste and improving impurity removal effect.

[0022] Furthermore, a rack mounting seat 3 is installed on the above-mentioned combing plate base 5, and the rack mounting seat and the combing plate seat are fixedly connected into one body with multiple screws. The combing plate rack 2 is installed on the rack mounting seat 3, and threaded holes A and threaded holes B are provided on the side of the rack mounting seat 3. A long screw is screwed into each of the threaded holes A and the threaded holes B, which increases the rigidity of the combing plate base 5, makes it less likely to be deformed by heat, and can prevent the occurrence of problems with the needle connection with the licker-in roller.

[0023] Furthermore, multiple adjusting bolts are passed through the through holes on the carding plate outer cover 1 and the carding plate base 5, and the heads of the adjusting bolts penetrate into the T-slots of the rack mounting seat 3. By means of a locking nut, the combination of the carding plate base 5 and the rack mounting seat 3 is restricted in the carding plate outer cover 1. A pressure spring 6 is respectively provided on both sides of the carding plate base. The pressure spring 6 is enclosed on the adjusting bolts and is located between the carding plate outer cover 1 and the rack mounting seat 3. Compared with the previous fixed spacing, when the fiber layer 7 is too thick, the fiber layer 7 squeezes the carding plate seat to move away from the licker-in roller, compressing the pressure spring 6, and the spacing between the carding device and the licker-in roller is increased, so as not to squeeze the licker-in roller needle clothing and the carding device of the carding machine. When the fiber layer 7 thickness returns to normal thickness, the spring resets, and the carding plate seat is under the spring force. The carding plate resets, and the carding device and the licker-in roller spacing return to the original set value. The pressure spring 6 can play a role in protecting the carding plate rack 2 and the licker-in roller needle clothing, avoiding damage.

[0024] Furthermore, the top surface of the regulating tongue plate 4 is a smooth and clean surface, and is covered with a wear-resistant layer to improve hardness and wear resistance.

[0025] A cotton support plate 1.1 is installed on the other side of the carding plate housing 1. The carding plate housing 1 and the cotton support plate 1.1 are an integrated structure. There is no gap between the two, which is less likely to cause fiber snagging and improves airflow. This solves the problem of the narrow length range of the first trash collection area S1, ensuring that the fiber channel is airtight while the length of the first trash collection area S1 can be adjusted.

[0026] Specifically, the driving mechanism includes a synchronous pulley I 13, a synchronous belt 14 and a synchronous pulley II 16. The synchronous pulley I 13 is set on the transmission shaft of the tongue plate motor 12, and the synchronous pulley II 16 is set on the rotating shaft 15. The synchronous belt 14 is sleeved on the synchronous pulley I 13 and the synchronous pulley II 16.

[0027] The cotton drop monitoring device of the present invention can adopt the cotton drop monitoring device technology described in Chinese patent application (application number: 202210626023.8) for detection. The cotton drop monitoring device of the patent application is arranged on the suction pipe and includes a spectrometer coaxial with the impurity discharge port, a visible light source and an infrared light source arranged on both sides of the front end of the spectrometer, a visible light detector and an infrared light detector arranged at the rear end of the spectrometer, and a signal processing circuit connected to the visible light detector and the infrared light detector respectively; the signal processing circuit is connected to the main controller. During detection, cotton and impurities pass through the impurity discharge port with high-speed airflow, and visible light and infrared light are irradiated on the cotton and impurities. The detector receives the reflected signal, and obtains the ratio of cotton to impurities through data processing, which is output through analog signals or communication.

[0028] The cotton waste content of the present invention is: the percentage of the volume (or weight) of cotton and impurities detected by the cotton waste monitoring device, that is: cotton waste content = (cotton volume / impurity volume) × 100%; If the cotton content in the noil is too high, raw materials are wasted. If the cotton content in the noil is too low, impurities cannot be effectively removed, which will affect product performance. Therefore, it is necessary to optimize the carding process parameters. After testing and combining production experience, the noil trash content C is optimized and can be set on the human-computer interface. The set noil trash content C is a numerical range, for example: the set noil trash content C = 10%-20%.

[0029] See also Figures 1-6 , an embodiment of the present invention of an adjustment method of the above-mentioned carding device of the carding machine, the adjustment method comprises the following steps: Step 1: Set the waste content C in the human-computer interaction interface; Step 2: When the carding device of the carding machine is operating normally, the cotton waste monitoring device detects the cotton waste content and sends the measured cotton waste content data to the cotton waste content data calculation module. The cotton waste content data calculation module compares the received cotton waste content with the set cotton waste content C; Step 3: When the measured cotton drop impurity rate is less than the set cotton drop impurity rate C, the comparison result is sent to the adjusting tongue plate control module, and the adjusting tongue plate control module controls the adjusting tongue plate motor 12 to rotate forward, drives the adjusting tongue plate 4 to rotate counterclockwise by a certain angle, so that the amount of cotton drop increases; when the measured cotton drop impurity rate is greater than the set cotton drop impurity rate C, the comparison result is sent to the adjusting tongue plate control module, and the adjusting tongue plate control module controls the adjusting tongue plate motor 12 to rotate reversely, drives the adjusting tongue plate to rotate clockwise by a certain angle, so that the amount of cotton drop decreases.

[0030] For example: if the above-mentioned cotton waste content C is set to 10%-20%, and the measured cotton waste content is 6%, which is less than the minimum value of 10% of the set cotton waste content C, this data is sent to the adjusting tongue plate control module, and the adjusting tongue plate control module controls the adjusting tongue plate motor 12 to rotate forward, drives the adjusting tongue plate 4 to rotate counterclockwise by a certain angle, and extends the second cotton waste area S2, thereby increasing the amount of cotton waste. If the measured cotton waste content is 25%, which is greater than the maximum value of 20% of the set cotton waste content C, this data is sent to the adjusting tongue plate control module, and the adjusting tongue plate control module controls the adjusting tongue plate motor 12 to rotate reversely, drives the adjusting tongue plate 4 to rotate clockwise by a certain angle, shortens the second cotton waste area S2, thereby reducing the amount of cotton waste. In this way, under the premise of ensuring product quality indicators, the appropriate amount of cotton waste can be accurately controlled in real time, reducing raw material waste and improving impurity removal effect.

[0031] The working principle of the carding device of the carding machine of the present invention: When the carding machine is working, the fiber layer 7 first enters the cotton supporting plate 1.1 at one end of the carding plate outer cover 1 when passing under the licker-in roller. After the fiber enters, it is brought into the carding plate rack 2 during the high-speed rotation of the licker-in roller. When the cotton flow passes through, the cotton supporting plate 1.1 and the carding plate outer cover 1 are an integrated structure without a splicing gap. The air flow is smoother and more stable, and there will be no hanging flower phenomenon. The pressure spring 6 at both ends of the carding plate base 5 is connected to the carding plate base 5 by a bolt. When the equipment is first installed, the elastic force and the spacing of the pressure spring 6 can be adjusted by rotating the adjusting bolt. When the fiber layer 7 enters the carding area, when the fiber layer is too thick, the fiber layer will press the carding device to move downward, and the pressure spring 6 is compressed. When the normal thickness of the fiber layer 7 is less than the initial spacing, the pressure spring 6 resets and restores the initial spacing. The pressure spring 6 plays a protective role and avoids the accident of damaging the card clothing or carding parts due to the excessive thickness of the fiber layer 7. After the fiber layer 7 passes through the combing plate rack 2, it enters the adjusting tongue plate 4. The adjusting tongue plate 4 can be driven by an adjusting tongue plate motor 12 to adjust the rotation angle, thereby adjusting the length of the second trash dropping area S2. The drive of the adjusting tongue plate 4 is controlled by the signal of the cotton dropping detection device installed on the equipment. For example, when the cotton dropping detection device detects that the cotton dropping content is less than the set cotton dropping content C, it issues an instruction to control the adjusting tongue plate control module to control the adjusting tongue plate motor 12 to rotate forward, rotate the adjusting tongue plate 4 counterclockwise by a certain angle, and increase the second trash dropping area S2; conversely, the adjusting tongue plate control module controls the adjusting tongue plate motor 12 to reverse, rotate the adjusting tongue plate 4 clockwise by a certain angle, and reduce the length S2 of the second trash dropping area, thereby accurately controlling the trash dropping and removing effect of the cotton combing machine in real time.

[0032] During the entire process, the fiber layer 7 always operates in a stable airflow environment, achieving high impurity removal rate, low short fiber generation rate, compact structure, low manufacturing cost and other effects, ensuring the quality and high yield of the carding machine.

[0033] The present invention can more reasonably remove impurities, and its stronger pre-combing capacity allows the impurities to be fully exposed and separated, thereby improving the removal efficiency of the main combing zone, improving the sliver index, and increasing the output of sliver. It can meet the market needs of different users and satisfy their process requirements for different raw materials.

[0034] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A carding device for a carding machine, comprising a frame, a carding plate outer cover, a carding plate rack, a carding plate base, an adjustment tongue plate, an adjustment pointer, a scale plate and a control system, wherein one end of the adjustment tongue plate is rotatably connected to one side of the carding plate outer cover through a rotating shaft, the adjustment pointer is fixed on the rotating shaft, and the scale plate is close to the adjustment pointer and is installed on the frame, characterized in that: The rotating shaft is driven to rotate by an adjusting tongue plate motor through a transmission mechanism. The control system is connected to the control end of the adjusting tongue plate motor to control the adjusting tongue plate motor to rotate forward or reverse, thereby driving the adjusting tongue plate and the adjusting pointer to rotate counterclockwise or clockwise by a certain angle, thereby accurately controlling the appropriate amount of cotton drop.

2. The carding device of the carding machine according to claim 1, characterized in that The control system includes a PLC controller, a human-computer interaction interface and a cotton drop monitoring device. The PLC controller is connected to the control end of the adjusting tongue plate motor. The human-computer interaction interface is used to set the cotton drop impurity content C. The PLC controller includes a cotton drop impurity content data calculation module and an adjusting tongue plate control module. The cotton drop impurity content data calculation module is used to receive the cotton drop impurity content measured by the cotton drop monitoring device, and compare the received cotton drop impurity content with the set cotton drop impurity content C to the adjusting tongue plate control module. The adjusting tongue plate control module automatically controls the adjusting tongue plate motor to rotate forward or reverse by a certain angle based on the received data, driving the adjusting tongue plate and the adjusting pointer to rotate counterclockwise or clockwise by a certain angle, so as to accurately control the appropriate amount of cotton drop in real time.

3. The carding device of the carding machine according to claim 1 or 2, characterized in that: The rack mounting seat is installed on the combing plate base, and the rack mounting seat and the combing plate seat are fixedly connected into one body with multiple screws. The combing plate rack is installed on the rack mounting seat, and a threaded hole is provided on the side of the rack mounting seat, and a long screw is screwed into the threaded hole.

4. The carding device of the carding machine according to claim 3, characterized in that An adjusting bolt is provided at each end of the combing plate seat, which passes through the through hole on the combing plate base and the combing plate cover. The head of the adjusting bolt passes through the T-slot of the rack mounting seat, and the combination of the combing plate base and the rack mounting seat is restricted in the combing plate cover by a locking nut. A pressure spring is provided on each side of the combing plate base. The pressure spring is sleeved on the adjusting bolt and is located between the combing plate cover and the rack mounting seat.

5. The carding device of the carding machine according to claim 1 or 2, characterized in that: The top surface of the regulating tongue plate is a smooth and clean surface, and is covered with a wear-resistant layer.

6. The carding device of the carding machine according to claim 4, characterized in that The top surface of the regulating tongue plate is a smooth and clean surface, and is covered with a wear-resistant layer.

7. The carding device of the carding machine according to claim 2, characterized in that A cotton supporting plate is provided on the other side of the combing plate outer cover, and the combing plate outer cover and the cotton supporting plate are an integrated structure.

8. The carding device of the carding machine according to claim 1 or 2, characterized in that: The adjusting tongue plate motor is a stepping motor, and the driving mechanism includes a synchronous pulley I, a synchronous belt and a synchronous pulley II. The synchronous pulley I is set on the transmission shaft of the adjusting tongue plate motor, and the synchronous pulley II is set on the rotating shaft. The synchronous belt is sleeved on the synchronous pulley I and the synchronous pulley II.

9. The carding device of the carding machine according to claim 7, characterized in that: The adjusting tongue plate motor is a stepping motor, and the driving mechanism includes a synchronous pulley I, a synchronous belt and a synchronous pulley II. The synchronous pulley I is set on the transmission shaft of the adjusting tongue plate motor, and the synchronous pulley II is set on the rotating shaft. The synchronous belt is sleeved on the synchronous pulley I and the synchronous pulley II.

10. A method for adjusting the carding device of a carding machine according to any one of claims 1 to 9, characterized in that: The adjustment method includes the following steps: Step 1: Set the waste content C in the human-computer interaction interface; Step 2: When the carding device of the carding machine is operating normally, the cotton waste monitoring device detects the cotton waste content and sends the measured cotton waste content data to the cotton waste content data calculation module. The cotton waste content data calculation module compares the received cotton waste content with the set cotton waste content C; Step 3: When the measured cotton drop impurity rate is less than the set cotton drop impurity rate C, the comparison result is sent to the adjusting tongue plate control module, and the adjusting tongue plate control module controls the adjusting tongue plate motor to rotate forward, drives the adjusting tongue plate to rotate counterclockwise by a certain angle, so that the amount of cotton drop increases; when the measured cotton drop impurity rate is greater than the set cotton drop impurity rate C, the comparison result is sent to the adjusting tongue plate control module, and the adjusting tongue plate control module controls the adjusting tongue plate motor to rotate reversely, drives the adjusting tongue plate to rotate clockwise by a certain angle, so that the amount of cotton drop decreases.

Images