High-speed drawing cleaning device

Abstract

The invention discloses a high-speed drawing and cleaning device, which is characterized in that a cleaning roller with a hollow structure is arranged on a drawing gluing roller of a drawing frame, a certain distance is kept between the drawing gluing roller and the cleaning roller, a certain number of negative pressure inlet holes are formed in the cleaning roller, and cleaning adsorption holes which completely cover the cleaning roller in the circumferential direction in a non-repeated manner are formed in the cleaning roller opposite to the negative pressure inlet holes. A hollow negative pressure cavity is formed above the cleaning roller, a negative pressure alignment hole is formed in the negative pressure cavity, the motor drives the cleaning roller to rotate, when the negative pressure inlet hole and the negative pressure alignment hole are communicated in a staggered mode, the cleaning adsorption hole adsorbs fibers adhered to the rubber roller below the cleaning adsorption hole into a filter screen of the cleaning roller, and the cleaning effect on the upper rubber roller without contact is achieved. And meanwhile, negative pressure inlet holes which are distributed at intervals are formed in the cleaning roller, segmented cleaning of the gluing roller is achieved, needed negative pressure is reduced, energy consumption is reduced, regular cleaning is achieved by arranging a filter screen in the cleaning roller in cooperation with combined installation of the cleaning roller, and the cleaning efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the new technical field of spinning, and particularly to a high-speed drawing cleaning device. Background Art

[0002] In recent years, the appearance of the traditional spinning industry has been undergoing profound changes, which are prominently reflected in significant progress in aspects such as equipment automation, continuity, intelligence, high speed and high efficiency, and low energy consumption, and have promoted the transfer of products to high quality and diversification. Automated spinning process equipment is being widely used, and the pace of "replacing humans with machines" has accelerated. Adopting continuous spinning technology to shorten traditional spinning processes is also an important way to achieve "replacing humans with machines" and reduce labor employment. Adopting intelligent technology enables the development of traditional spinning production towards online automatic monitoring. With the development of technology, especially the popularization and application of intelligent technology and the progress of key spinning component manufacturing technology, good conditions have been created for spinning equipment to achieve high-speed operation.

[0003] Drawing is one of the important links in the spinning process. The function of the drawing frame is to improve the internal structure of the sliver, thereby improving its long-section evenness, while reducing the weight unevenness rate, straightening and paralleling the fibers in the sliver, reducing hooks, making the fineness meet the regulations, and mixing different types or qualities of raw materials evenly to reach the specified mixing ratio. Since the invention of roller drafting in the 18th century and its application in the ring spinning frame and roving frame, due to the additional unevenness brought by roller drafting to the yarn sliver, the products could not reach the required evenness. Therefore, two or more slivers were combined to improve the evenness, and the initial drawing frame appeared. Later, the drafting type of the drawing frame was reformed again, from gradually increasing drafting to double-zone drafting, and then from straight-line drafting to curved drafting type, which significantly improved the quality of the produced sliver and achieved lane reduction. Since the 1950s, the output speed of the drawing frame has increased rapidly, from 40 - 60 m / min to more than 200 m / min, and even up to 600 m / min. Currently, the high-speed development of the drawing frame is the main direction of its development. During the drawing process, due to the high-speed rotation of the rollers, a large amount of heat is generated due to the frictional force when pressing and driving with the rubber rollers. At the same time, since the flannel board always remains in contact when cleaning the rubber rollers, a large amount of heat is generated due to the frictional force between the two. When the generated heat reaches a certain level, it will have an adverse effect on the fibers, especially the adhesion of the rubber rollers to the fibers, which affects the drawing effect and then greatly limits the improvement of the speed of the drawing frame. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-speed drawing cleaning device. By arranging a hollow cleaning roller with a filter screen at a certain distance from the upper drafting rubber rollers on the upper parts of the drafting rubber rollers in the drafting system of the drawing frame, efficient segmented cleaning of the upper drafting rubber rollers without contact is achieved, providing necessary conditions for the high-speed operation of drawing.

[0005] The present invention provides a high-speed drawing cleaning device, including a drafting system and a cleaning system, the drafting system includes a rear roller pair, a middle rear roller pair, a middle front roller pair, and a front roller pair, and is characterized in that: the cleaning system is arranged above the drafting system, the cleaning system includes a cleaning device and a negative pressure device, the cleaning device includes rear, middle rear roller pair, middle front roller pair, and a front cleaning roller with the same structure and connected to each other through a pulley transmission, which is installed on a swinging assembly, each cleaning roller includes a hollow cleaning roller, the right circular surface of the cleaning roller is a detachable surface, and the left circular surface is connected through a bearing, 3-6 circular negative pressure inlet holes are arranged along the length direction of the cleaning roller on the side surface, and an elliptical negative pressure inlet hole is opened on the cleaning roller opposite to each negative pressure inlet hole. The cleaning adsorption holes fully cover the circumferential direction of the cleaning roller where they are located without duplication. A filter assembly that can be inserted and connected to the left circular surface is provided in the cleaning roller. A negative pressure device is provided on the upper part of the cleaning device. The negative pressure device includes a hollow and closed negative pressure cavity that is detachably connected to the swing assembly. Rear, middle-rear, middle-front and front arc-shaped grooves that are embedded and connected to the rear, middle-rear, middle-front and front cleaning rollers are provided in sequence along the width direction of the negative pressure cavity. Negative pressure alignment holes are provided at the topmost arc surfaces of the rear, middle-rear, middle-front and front arc-shaped grooves, whose geometric structures and quantities are consistent with the negative pressure inlet holes on the cleaning rollers of the rear, middle-rear, middle-front and front cleaning rollers.

[0006] A high-speed drawing and cleaning device as described above, wherein preferably, the rear roller pair includes a rear lower roller and a rear upper rubber roller, the middle rear roller pair includes a middle rear lower roller and a middle rear upper rubber roller, the middle front roller pair includes a middle front lower roller and a middle front upper rubber roller, and the front roller pair includes a front lower roller and a front upper rubber roller. The rear lower roller, the middle rear lower roller, the middle front lower roller, and the front lower roller have the same structure, including a roller shaft. The roller shaft is a solid cylindrical structure. A roller sleeve of the same material as the roller shaft is sleeved on the middle part of the roller shaft. The roller sleeve and the roller shaft are integrally fixedly connected. A threaded structure is provided on the roller sleeve. The roller shaft is mounted on the car surface of the drawing frame. A guide roller is also provided on the front lower roller. The rear upper rubber roller, the middle rear upper rubber roller, the middle front upper rubber roller, the front upper rubber roller, and the guide roller are The structure is the same, including a rubber roller axis, a rubber roller iron shell, an elastic covering, and a needle roller bearing. The rubber roller axis is a solid cylindrical structure, and an elastic covering is wrapped on the rubber roller axis through the rubber roller iron shell. The elastic covering is made of rubber, and the rubber roller iron shell and the rubber roller axis are rollingly connected through needle roller bearings. The rear upper rubber roller, the middle rear upper rubber roller, the middle front upper rubber roller, the front upper rubber roller, and the guide roller are installed on the pressure assembly. The roller shaft of the front lower roller is driven to rotate by the first motor, and the roller shaft of the middle front lower roller is connected to the roller shaft of the front lower roller by the first reduction gear group. The roller shaft of the middle rear lower roller and the roller shaft of the middle front lower roller are connected to each other by the second reduction gear group. The roller shaft of the rear lower roller and the roller shaft of the middle rear lower roller are connected to each other by the third reduction gear group.

[0007] A high-speed drawing cleaning device as described above, wherein preferably, the cleaning roller is made of iron, the right circular surface of the cleaning roller is set as a detachable surface, the detachable surface is detachably fixedly connected to the right port of the cleaning roller, a magnet with fixed magnetism is set on the outer circumference of one side of the detachable surface, the detachable surface is fixedly adsorbed on the right port of the cleaning roller by the magnet, and the detachable surface can be removed by external force, the left circular surface of the cleaning roller is closed and connected to the left port of the cleaning roller by a bearing, so that the left circular surface can remain stationary when the cleaning roller rotates.

[0008] A high-speed strip cleaning device as described above, wherein, preferably, a left rear connecting pin is fixedly provided on the left circular surface of the cleaning roller of the rear cleaning roller, and a right rear connecting pin is replaceably provided on the right side, and the right rear connecting pin is driven to rotate by the second motor through a driving belt, a left middle rear connecting pin is fixedly provided on the left circular surface of the cleaning roller of the middle rear cleaning roller, a left middle front connecting pin is fixedly provided on the left circular surface of the cleaning roller of the middle front cleaning roller, and a left front connecting pin is fixedly provided on the left circular surface of the cleaning roller of the front cleaning roller, a right middle rear connecting pin is replaceably provided on the right circular surface of the cleaning roller of the middle rear cleaning roller, and a right circular surface of the cleaning roller of the middle front cleaning roller is fixedly provided. A right middle front connecting pin is replaceably provided on the top, and a right front connecting pin is replaceably provided on the right circular surface of the cleaning roller of the front cleaning roller. The right rear connecting pin and the right middle rear connecting pin are connected by a first connecting belt transmission, and the diameter ratio of the right rear connecting pin and the right middle rear connecting pin is equal to the gear ratio of the third reduction gear set. The right middle rear connecting pin and the right middle front connecting pin are connected by a second connecting belt transmission, and the diameter ratio of the right middle rear connecting pin and the right middle front connecting pin is equal to the gear ratio of the second reduction gear set. The right middle front connecting pin and the front connecting pin are connected by a third connecting belt transmission, and the diameter ratio of the right middle front connecting pin and the front connecting pin is equal to the gear ratio of the first reduction gear set.

[0009] A high-speed drawing cleaning device as described above, wherein, preferably, the rear end of the swing assembly is sleeved in a connecting cross bar located on the machine table surface, and the swing assembly can swing up and down around the connecting cross bar under the action of an external force. At both ends of the swing assembly, there are respectively a left rear embedding claw, a left middle rear embedding claw, a left middle front embedding claw, a left front embedding claw, a right rear embedding claw, a right middle rear embedding claw, a right middle front embedding claw, and a right front embedding claw. The outer parts of the right rear connecting pin, the right middle rear connecting pin, the right middle front connecting pin, the right front connecting pin, the left rear connecting pin, the left middle rear connecting pin, the left middle front connecting pin, and the left front connecting pin are respectively sleeved with a right rear fixing pin, a right middle rear fixing pin, a right middle front fixing pin, a right front fixing pin, a left rear fixing pin, a left middle rear fixing pin, a left middle front fixing pin, and a left front fixing pin through bearings. The left rear fixing pin and the right rear fixing pin are respectively fixedly embedded in the left rear embedding claw and the right rear embedding claw. The left middle rear fixing pin and the right middle rear fixing pin are respectively fixedly embedded in the left middle rear embedding claw and the right middle rear embedding claw. The left middle front fixing pin and the right middle front fixing pin are respectively fixedly embedded in the left middle front embedding claw and the right middle front embedding claw. The left front fixing pin and the right front fixing pin are respectively fixedly embedded in the left front embedding claw and the right front embedding claw. After the swing assembly swings downward, the rear cleaning roller, the middle rear cleaning roller, the middle front cleaning roller, and the front cleaning roller all swing downward and are respectively located directly above the rear upper rubber roller, the middle rear upper rubber roller, the middle front upper rubber roller, and the front upper rubber roller, and maintain a certain distance from each other. And at this time, the cleaning device is in a working state. After the swing device swings upward, the rear cleaning roller, the middle rear cleaning roller, the middle front cleaning roller, and the front cleaning roller all swing upward, and at this time, the cleaning device is in a non-working state.

[0010] A high-speed drawing cleaning device as described above, wherein, preferably, the negative pressure inlet hole is a circular hole with a diameter of 5 - 10 mm. There are 3 - 6 negative pressure inlet holes arranged along the length direction of the cleaning roller cylinder, and each negative pressure inlet hole is not on the same horizontal straight line. The minor axis length of the cleaning adsorption hole is greater than the diameter of the negative pressure inlet hole. The connection line between the center of the circle of the negative pressure inlet hole and the center of the cleaning adsorption hole directly opposite to it is perpendicular to the axis of the cleaning roller cylinder.

[0011] A high-speed drawing cleaning device as described above, wherein, preferably, the filter screen assembly includes a filter screen with a rectangular structure. On both sides of the filter screen in the length direction, there are respectively filter screen support cross bars. The filter screen support cross bars are fixedly connected to the filter screen. One end of the filter screen support cross bar can be inserted and connected to the left circular surface of the cleaning roller cylinder. There are 2 filter screen insertion holes on the left circular surface of the cleaning roller cylinder. One end of 2 filter screen support cross bars is respectively inserted into the corresponding filter screen insertion holes, and the installed filter screen is horizontal with the machine table surface of the drawing frame.

[0012] A high-speed drawing frame cleaning device as described above, wherein, preferably, the negative pressure cavity is interconnected with the negative pressure suction system of the drawing frame, and the negative pressure cavity is detachably fixedly connected to the swinging assembly. Along the width direction of the negative pressure cavity, a rear arc groove, a middle rear arc groove, a middle front arc groove, and a front arc groove are sequentially arranged. The rear arc groove, the middle rear arc groove, the middle front arc groove, and the front arc groove are arranged from the rear to the front along the length direction of the negative pressure cavity. The arc surfaces on the upper sides of the rear cleaning roller, the middle rear cleaning roller, the middle front cleaning roller, and the front cleaning roller are respectively embedded into the rear arc groove, the middle rear arc groove, the middle front arc groove, and the front arc groove, and are kept in smooth contact and close to each other.

[0013] A high-speed drawing frame cleaning device as described above, wherein, preferably, the swinging device swings downward so that the cleaning device and the negative pressure device swing downward to be in a working state. At any moment, either only one negative pressure inlet hole on the rear cleaning roller, the middle rear cleaning roller, the middle front cleaning roller, and the front cleaning roller is in an interleaved state with the negative pressure alignment holes on the corresponding rear arc groove, middle rear arc groove, middle front arc groove, and front arc groove, or no negative pressure inlet hole is in an interleaved state with the negative pressure alignment holes, so that at any moment, either only one cleaning adsorption hole on the rear cleaning roller is in a cleaning working state, or no cleaning adsorption hole is in a cleaning working state, either only one cleaning adsorption hole on the middle rear cleaning roller is in a cleaning working state, or no cleaning adsorption hole is in a cleaning working state, either only one cleaning adsorption hole on the middle front cleaning roller is in a cleaning working state, or no cleaning adsorption hole is in a cleaning working state, and either only one cleaning adsorption hole on the front cleaning roller is in a cleaning working state, or no cleaning adsorption hole is in a cleaning working state.

[0014] A high-speed drawing frame cleaning device as described above, wherein, preferably, the negative pressure amount in the negative pressure cavity is set according to the front sizing roller that rotates fastest and where impurities are most likely to accumulate.

[0015] Compared with the prior art, the present invention realizes the cleaning effect on the sizing roller without contact by arranging cleaning rollers with a hollow structure at a certain distance from the sizing rollers on the upper parts of the drafting sizing rollers in the drafting system of the drawing frame, so that the frictional effect between the sizing roller and the traditional flannel board during cleaning disappears, and then realizes a frictionless cleaning process under the high-speed rotation of the sizing roller, thus providing a necessary condition for the high-speed operation of the drawing frame. At the same time, by arranging negative pressure inlet holes arranged at intervals on the cleaning roller, the segmented cleaning effect on the sizing roller is realized, and then the negative pressure required during the cleaning process is reduced, thereby reducing the energy consumption required during cleaning. By arranging a filter screen in the cleaning roller and combining the installation of the cleaning roller, the regular cleaning of the cleaning roller is realized, thereby effectively improving the cleaning efficiency. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the high-speed drawing cleaning device of the present invention;

[0017] Figure 2 It is a schematic diagram of the overall structure of the cleaning system of the high-speed drawing cleaning device of the present invention.

[0018] Explanation of the reference numerals:

[0019] 1 - Rear lower roller, 2 - Rear upper rubber roller, 3 - Middle rear lower roller, 4 - Middle rear upper rubber roller, 5 - Middle front lower roller, 6 - Middle front upper rubber roller, 7 - Front lower roller, 8 - Front upper rubber roller, 9 - First motor, 10 - First reduction gear set, 11 - Second reduction gear set, 12 - Third reduction gear set, 13 - Rear cleaning roller, 14 - Middle rear cleaning roller, 15 - Middle front cleaning roller, 16 - Front cleaning roller, 17 - Negative pressure inlet hole, 18 - Cleaning adsorption hole, 19 - Filter screen, 20 - Second motor, 21 - First connecting belt, 22 - Second connecting belt, 23 - Third connecting belt, 24 - Negative pressure cavity, 25 - Negative pressure alignment hole, 26 - Connecting cross bar, 27 - Swing assembly, 28 - Rear arc groove, 29 - Middle rear arc groove, 30 - Middle front arc groove, 31 - Front arc groove, 32 - Filter screen support cross bar, 33 - Detachable surface, 34 - Right rear connecting pin, 35 - Right middle rear connecting pin, 36 - Right middle front connecting pin, 37 - Right front connecting pin, 38 - Left rear connecting pin, 39 - Left middle rear connecting pin, 40 - Left middle front connecting pin, 41 - Left front connecting pin. Detailed implementation manners

[0020] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] Referring to Figure 1 and Figure 2 As shown, the present invention relates to a high-speed drawing cleaning device, including a drafting system. The drafting system includes a rear roller pair, a middle rear roller pair, a middle front roller pair, and a front roller pair. The rear roller pair includes a rear lower roller 1 and a rear upper rubber roller 2. The middle rear roller pair includes a middle rear lower roller 3 and a middle rear upper rubber roller 4. The middle front roller pair includes a middle front lower roller 5 and a middle front upper rubber roller 6. The front roller pair includes a front lower roller 7 and a front upper rubber roller 8.

[0022] The structures of the rear lower roller 1, the middle rear lower roller 3, the middle front lower roller 5, and the front lower roller 7 are the same, including a roller shaft. The roller shaft is a solid cylindrical structure. A roller sleeve made of the same material as the roller shaft is sleeved on the middle part of the roller shaft. The roller sleeve and the roller shaft are integrally and fixedly connected. A threaded structure is provided on the roller sleeve. The roller shaft is installed on the machine surface of the drawframe. A guide roller is also provided on the front lower roller 7. The structures of the rear upper roller 2, the middle rear upper roller 4, the middle front upper roller 6, the front upper roller 8, and the guide roller are the same, including a roller core, a roller iron shell, an elastic coating, and a needle roller bearing. The roller core is a solid cylindrical structure. An elastic coating is wrapped around the roller core through the roller iron shell. The elastic coating is made of rubber material. The roller iron shell and the roller core are connected by a needle roller bearing in a rolling manner, so that the elastic coating can rotate freely around the roller core.

[0023] The rear upper roller 2, the middle rear upper roller 4, the middle front upper roller 6, the front upper roller 8, and the guide roller are installed on a pressing component. The pressing component is a spring rocker arm pressing or a pneumatic rocker arm pressing structure. The pressing component is arranged on the machine surface of the drawframe on both sides of the drafting system. The two ends of the roller cores of the rear upper roller 2, the middle rear upper roller 4, the middle front upper roller 6, the front upper roller 8, and the guide roller are respectively embedded in the embedding pins on the left and right sides of the pressing component, so as to achieve fixed installation. When the pressing component presses down, it will make the rear upper roller 2 and the rear lower roller 1 press tightly against each other directly above, the middle rear upper roller 4 and the middle rear lower roller 3 press tightly against each other directly above, the middle front upper roller 6 and the middle front lower roller 5 press tightly against each other directly above, the front upper roller 8 and the front lower roller 7 press tightly against each other directly above, and the guide roller and the front lower roller 7 press tightly against each other directly above the front. The rear lower roller 1 and the middle rear lower roller 3 are kept horizontal. The middle rear lower roller 3 and the middle front lower roller 5 are kept horizontal. The horizontal line where the top of the front lower roller 7 is located is on the lower side of the horizontal line where the top of the middle front lower roller 5 is located. A pressure bar is arranged between the middle front roller pair and the front roller pair. The pressure bar is installed on the pressing component, so that the pressure bar is located above the fiber sliver between the middle front roller pair and the front roller pair. The roller shaft of the front lower roller 7 is driven to rotate by a first motor 9. The roller shaft of the middle front lower roller 5 and the roller shaft of the front lower roller 7 are connected by a first reduction gear set 10 in a transmission manner, so as to form a front drafting zone between the middle front roller pair and the front roller pair. The drafting multiple of the front drafting zone is determined by the first reduction gear set 10. The roller shaft of the middle rear lower roller 3 and the roller shaft of the middle front lower roller 5 are connected by a second reduction gear set 11 in a transmission manner, so as to form a middle finishing zone between the middle rear roller pair and the middle front roller pair. The middle finishing zone is a tension draft and the magnitude of the tension draft is determined by the second speed increasing gear set. The roller shaft of the rear lower roller 1 and the roller shaft of the middle rear lower roller 3 are connected by a third reduction gear set 12 in a transmission manner, so as to form a rear drafting zone between the rear roller pair and the middle rear roller pair. The drafting multiple of the rear drafting zone is determined by the third reduction gear set 12.

[0024] A cleaning system is provided above the drafting system. The cleaning system includes a cleaning device and a negative pressure device. The cleaning device includes a rear cleaning roller 13, a middle-rear cleaning roller 14, a middle-front cleaning roller 15, and a front cleaning roller 16. The structures of the rear cleaning roller 13, the middle-rear cleaning roller 14, the middle-front cleaning roller 15, and the front cleaning roller 16 are the same. The rear cleaning roller 13, the middle-rear cleaning roller 14, the middle-front cleaning roller 15, and the front cleaning roller 16 include a hollow cleaning roller barrel with a cylindrical structure. The cleaning roller barrel is made of iron. The right circular surface of the cleaning roller barrel is set as a detachable surface 33. The detachable surface 33 is detachably fixedly connected to the right port of the cleaning roller barrel. A magnet with a fixed magnetism is arranged on the outer circumference of one side of the detachable surface 33. The detachable surface 33 is fixedly adsorbed on the right port of the cleaning roller barrel through the magnet and can be removed by an external force. The left circular surface of the cleaning roller barrel is hermetically connected to the left port of the cleaning roller barrel through a bearing, so that the left circular surface can remain stationary when the cleaning roller barrel rotates.

[0025] A left rear connecting pin 38 is fixedly provided on the left circular surface of the cleaning roller of the rear cleaning roller 13, and a right rear connecting pin 34 is replaceably provided on the right side. The right rear connecting pin 34 is driven to rotate by the second motor 20 through the driving belt, and then drives the rear cleaning roller 13 to rotate. The second motor 20 is controlled by the corresponding motor control system to control its rotation speed. A left middle rear connecting pin 39 is fixedly provided on the left circular surface of the cleaning roller of the middle rear cleaning roller 14, and a left middle rear connecting pin 39 is fixedly provided on the left circular surface of the cleaning roller of the middle front cleaning roller 15. A left middle front connecting pin 40 is fixedly provided, a left front connecting pin 41 is fixedly provided on the left circular surface of the cleaning roller of the front cleaning roller 16, a right middle rear connecting pin 35 is replaceably provided on the right circular surface of the cleaning roller of the middle rear cleaning roller 14, a right middle front connecting pin 36 is replaceably provided on the right circular surface of the cleaning roller of the middle front cleaning roller 15, a right front connecting pin 37 is replaceably provided on the right circular surface of the cleaning roller of the front cleaning roller 16, a right rear connecting pin 34 and a right middle rear connecting pin 35 are connected by the first connecting belt 21, and the diameter ratio of the right rear connecting pin 34 and the right middle rear connecting pin 35 is equal to the gear ratio of the third reduction gear set 12, so that the speed ratio of the rear cleaning roller 13 and the middle rear cleaning roller 14 is equal to the speed ratio of the rear top glue roller 2 and the middle rear top glue roller 42, and the right middle rear connecting pin 35 and the right middle front connecting pin 36 are connected by the second connecting belt 22, and the diameter ratio of the right middle rear connecting pin 35 and the right middle front connecting pin 36 is equal to the second reduction gear set 12. The gear ratio of the gear set 11 makes the ratio of the rotational speed of the middle rear cleaning roller 14 to the middle front cleaning roller 15 equal to the ratio of the rotational speed of the middle rear glue roller 4 to the middle front glue roller 6. The right middle front connecting pin 36 and the front connecting pin are connected by a third connecting belt 23, and the diameter ratio of the right middle front connecting pin 36 and the front connecting pin is equal to the gear ratio of the first reduction gear set 10, so that the ratio of the rotational speed of the middle front cleaning roller 15 to the front cleaning roller 16 is equal to the ratio of the rotational speed of the middle front glue roller 6 to the front glue roller 8.

[0026] The rear cleaning roller 13, the middle rear cleaning roller 14, the middle front cleaning roller 15, and the front cleaning roller 16 are installed on the swing assembly 27. The rear end of the swing assembly 27 is sleeved in the connecting cross bar 26 located on the vehicle table top. The swing assembly 27 can swing up and down around the connecting cross bar 26 under the action of external force. At both ends of the swing assembly 27, there are respectively arranged a left rear embedding claw, a left middle rear embedding claw, a left middle front embedding claw, a left front embedding claw, a right rear embedding claw, a right middle rear embedding claw, a right middle front embedding claw, and a right front embedding claw. The outer parts of the right rear connecting pin 34, the right middle rear connecting pin 35, the right middle front connecting pin 36, the right front connecting pin 37, the left rear connecting pin 38, the left middle rear connecting pin 39, the left middle front connecting pin 40, and the left front connecting pin 41 are respectively sleeved with a right rear fixing pin, a right middle rear fixing pin, a right middle front fixing pin, a right front fixing pin, a left rear fixing pin, a left middle rear fixing pin, a left middle front fixing pin, and a left front fixing pin through bearings. The left rear fixing pin and the right rear fixing pin are respectively fixedly embedded in the left rear embedding claw and the right rear embedding claw to realize the fixed installation of the rear cleaning roller 13. The left middle rear fixing pin and the right middle rear fixing pin are respectively fixedly embedded in the left middle rear embedding claw and the right middle rear embedding claw to realize the fixed installation of the middle rear cleaning roller 14. The left middle front fixing pin and the right middle front fixing pin are respectively fixedly embedded in the left middle front embedding claw and the right middle front embedding claw to realize the fixed installation of the middle front cleaning roller 15. The left front fixing pin and the right front fixing pin are respectively fixedly embedded in the left front embedding claw and the right front embedding claw to realize the fixed installation of the front cleaning roller 16. After the swing assembly 27 swings downward, the rear cleaning roller 13, the middle rear cleaning roller 14, the middle front cleaning roller 15, and the front cleaning roller 16 all swing downward and are respectively located directly above the rear upper glue roller 2, the middle rear upper glue roller 4, the middle front upper glue roller 6, and the front upper glue roller 8 and maintain a certain distance from each other. And at this time, the cleaning device is in the working state. After the swing device swings upward, the rear cleaning roller 13, the middle rear cleaning roller 14, the middle front cleaning roller 15, and the front cleaning roller 16 all swing upward and at this time the cleaning device is in the non - working state.

[0027] Negative pressure inlet holes 17 are formed on the circumferential surface of the cleaning roller. The negative pressure inlet holes 17 are circular holes with a diameter of 5 - 10 mm. There are 3 - 6 negative pressure inlet holes 17 arranged along the length direction of the cleaning roller, and each negative pressure inlet hole 17 is not on the same horizontal straight line. Cleaning adsorption holes 18 are formed on the cleaning roller on the other side opposite to the negative pressure inlet holes 17. The cleaning adsorption holes 18 are of an elliptical structure. The length of the minor axis of the cleaning adsorption holes 18 is greater than the diameter of the negative pressure inlet holes 17. The connection line between the center of the negative pressure inlet hole 17 and the center of the cleaning adsorption hole 18 opposite to it is perpendicular to the axis of the cleaning roller. Each cleaning adsorption hole 18 on the rear cleaning roller 13 completely covers the circumferential direction of the cleaning roller of the rear cleaning roller 13 without repetition. Each cleaning adsorption hole 18 on the middle-rear cleaning roller 14 completely covers the circumferential direction of the cleaning roller of the middle-rear cleaning roller 14 without repetition. Each cleaning adsorption hole 18 on the middle-front cleaning roller 15 completely covers the circumferential direction of the cleaning roller of the middle-front cleaning roller 15 without repetition. Each cleaning adsorption hole 18 on the front cleaning roller 16 completely covers the circumferential direction of the cleaning roller of the front cleaning roller 16 without repetition.

[0028] A filter screen assembly is arranged inside the cleaning roller. The filter screen assembly includes a filter screen 19 of a rectangular structure. Filter screen support crossbars 32 are respectively arranged on both sides of the filter screen 19 in the length direction. The filter screen support crossbars 32 are fixedly connected to the filter screen 19. One end of the filter screen support crossbar 32 can be inserted and connected to the left circular surface of the cleaning roller. There are 2 filter screen 19 insertion holes arranged on the left circular surface of the cleaning roller. One end of each of the 2 filter screen support crossbars 32 is inserted into the corresponding filter screen 19 insertion hole, and the installed filter screen 19 is kept horizontal with the table surface of the drawing frame.

[0029] A negative pressure device is provided at the upper part of the cleaning device. The negative pressure device includes a negative pressure cavity 24 with a hollow closed structure. The negative pressure cavity 24 is interconnected with the negative pressure suction system of the drawing frame. The negative pressure cavity 24 is detachably fixedly connected to the swing assembly 27. Along the width direction of the negative pressure cavity 24, a rear arc-shaped groove 28, a middle-rear arc-shaped groove 29, a middle-front arc-shaped groove 30, and a front arc-shaped groove 31 are sequentially arranged. The rear arc-shaped groove 28, the middle-rear arc-shaped groove 29, the middle-front arc-shaped groove 30, and the front arc-shaped groove 31 are arranged from the rear to the front along the length direction of the negative pressure cavity 24. And the arc surfaces on the upper sides of the rear cleaning roller 13, the middle-rear cleaning roller 14, the middle-front cleaning roller 15, and the front cleaning roller 16 are respectively embedded into the rear arc-shaped groove 28, the middle-rear arc-shaped groove 29, the middle-front arc-shaped groove 30, and the front arc-shaped groove 31, and are kept in smooth contact and closely adjoined. At the position of the topmost arc surface in the rear arc-shaped groove 28, the middle-rear arc-shaped groove 29, the middle-front arc-shaped groove 30, and the front arc-shaped groove 31, circular negative pressure alignment holes 25 are provided. The number and aperture of the negative pressure alignment holes 25 in the rear arc-shaped groove 28 are the same as those of the negative pressure inlet holes 17 on the rear cleaning roller 13. The number and aperture of the negative pressure alignment holes 25 in the middle-rear arc-shaped groove 29 are the same as those of the negative pressure inlet holes 17 on the middle-rear cleaning roller 14. The number and aperture of the negative pressure alignment holes 25 in the middle-front arc-shaped groove 30 are the same as those of the negative pressure inlet holes 17 on the middle-front cleaning roller 15. The number and aperture of the negative pressure alignment holes 25 in the front arc-shaped groove 31 are the same as those of the negative pressure inlet holes 17 on the front cleaning roller 16.

[0030] The swinging device swings downward, causing the cleaning device and the negative pressure device to swing downward and be in the working state. At this time, when a negative pressure inlet hole 17 of the rear cleaning roller 13 rotates to align with a negative pressure alignment hole 25 in the corresponding rear arc-shaped groove 28, from being staggered, to being completely aligned, and then to being completely non-staggered, when a negative pressure inlet hole 17 of the middle rear cleaning roller 14 rotates to align with a negative pressure alignment hole 25 in the corresponding middle rear arc-shaped groove 29, from being staggered, to being completely aligned, and then to being completely non-staggered, when a negative pressure inlet hole 17 of the middle front cleaning roller 15 rotates to align with a negative pressure alignment hole 25 in the corresponding middle front arc-shaped groove 30, from being staggered, to being completely aligned, and then to being completely non-staggered, when a negative pressure inlet hole 17 of the front cleaning roller 16 rotates to align with a negative pressure alignment hole 25 in the corresponding front arc-shaped groove 31, from being staggered, to being completely aligned, and then to being completely non-staggered, the corresponding cleaning adsorption holes 18 are in the cleaning working state; when the negative pressure inlet hole 17 and the negative pressure alignment hole 25 are completely non-staggered with each other, the negative pressure alignment hole 25 is blocked by the corresponding cleaning roller cylinder, so that the corresponding cleaning adsorption holes 18 are in the non-cleaning working state. At the same time, by setting the position of the negative pressure inlet hole 17 on the corresponding cleaning roller cylinder, the swinging device swings downward, causing the cleaning device and the negative pressure device to swing downward and be in the working state. At any time, on the rear cleaning roller 13, the middle rear cleaning roller 14, the middle front cleaning roller 15, and the front cleaning roller 16, either only one negative pressure inlet hole 17 is in an interleaved state with the negative pressure alignment holes 25 in the corresponding rear arc-shaped groove 28, middle rear arc-shaped groove 29, middle front arc-shaped groove 30, and front arc-shaped groove 31, or no negative pressure inlet hole 17 is in an interleaved state with the negative pressure alignment holes 25, so that at any time, on the rear cleaning roller 13, either only one cleaning adsorption hole 18 is in the cleaning working state, or no cleaning adsorption hole 18 is in the cleaning working state, on the middle rear cleaning roller 14, either only one cleaning adsorption hole 18 is in the cleaning working state, or no cleaning adsorption hole 18 is in the cleaning working state, on the middle front cleaning roller 15, either only one cleaning adsorption hole 18 is in the cleaning working state, or no cleaning adsorption hole 18 is in the cleaning working state, on the front cleaning roller 16, either only one cleaning adsorption hole 18 is in the cleaning working state, or no cleaning adsorption hole 18 is in the cleaning working state. Thus, according to the front sizing roller 8 that rotates the fastest and where impurities are most likely to accumulate, the negative pressure amount in the negative pressure cavity 24 is set, and the swinging assembly 27 swings upward, causing the cleaning device to swing upward synchronously and be in the non-working state.

[0031] In use, first, each lower roller of the drafting system is rotated through the motor drive. During this process, the first motor 9 drives the rotation of the roller shaft of the front lower roller 7. The rotation of the roller shaft of the front lower roller 7 then drives the rotation of the roller shaft of the middle front lower roller 5 through the first reduction gear set 10. The rotation of the roller shaft of the middle front lower roller 5 then drives the rotation of the roller shaft of the middle rear lower roller 3 through the second reduction gear set 11. The rotation of the roller shaft of the middle rear lower roller 3 then drives the rotation of the roller shaft of the rear lower roller 1 through the third reduction gear set 12. Then, the pressing component is pressed down, so that the rear upper rubber roller 2 is tightly pressed and contacted directly above the rear lower roller 1. The rotation of the roller sleeve of the rear lower roller 1 then drives the synchronous rotation of the rubber roller sleeve of the rear upper rubber roller 2 that is tightly pressed and contacted with it, so as to form a rear conveying nip for tightly pressing and holding the fibers at the rear roller pair. At the same time, the middle rear upper rubber roller 4 is tightly pressed and contacted directly above the middle rear lower roller 3. The rotation of the roller sleeve of the middle rear lower roller 3 then drives the synchronous rotation of the rubber roller sleeve of the middle rear upper rubber roller 4 that is tightly pressed and contacted with it, so as to form a middle rear conveying nip for tightly pressing and holding the fibers at the middle rear roller pair. At the same time, the middle front upper rubber roller 6 is tightly pressed and contacted directly above the middle front lower roller 5. The rotation of the roller sleeve of the middle front lower roller 5 then drives the synchronous rotation of the rubber roller sleeve of the middle front upper rubber roller 6 that is tightly pressed and contacted with it, so as to form a middle front conveying nip for tightly pressing and holding the fibers at the middle front roller pair. At the same time, the front upper rubber roller 8 is tightly pressed and contacted directly above the front lower roller 7. The rotation of the roller sleeve of the front lower roller 7 then drives the synchronous rotation of the rubber roller sleeve of the front upper rubber roller 8 that is tightly pressed and contacted with it, so as to form a front conveying nip for tightly pressing and holding the fibers at the front roller pair. The rotation of the roller sleeve of the front lower roller 7 then drives the synchronous rotation of the rubber roller sleeve of the guide roller that is tightly pressed and contacted with it, so as to form a front output nip for tightly pressing and holding the fibers at the front roller pair. Thus, a front drafting zone is formed between the middle front conveying nip and the front conveying nip. The drafting ratio of the front drafting zone accounts for 70%-80% of the total drafting ratio. A middle finishing zone is formed between the middle rear conveying nip and the middle front conveying nip. The tension drafting ratio of the middle drafting zone is between 1.01 and 1.05. A rear drafting zone is formed between the rear conveying nip and the middle rear conveying nip. A transition finishing zone for turning and outputting the drafted fiber sliver is formed between the front output nip and the front conveying nip.

[0032] Then swing the swing assembly 27 downward, so that the rear cleaning roller 13, the middle rear cleaning roller 14, the middle front cleaning roller 15, and the front cleaning roller 16 all swing downward and are respectively located directly above the rear upper glue roller 2, the middle rear upper glue roller 4, the middle front upper glue roller 6, and the front upper glue roller 8, and maintain a certain distance from each other. At this time, the second motor 20 drives the right rear connecting pin 34 to rotate through the belt, and then drives the rear cleaning roller 13 to rotate. The rotation of the right rear connecting pin 34 then drives the right middle rear connecting pin 35 to rotate through the first connecting belt 21, so as to drive the middle rear cleaning roller 14 to rotate, and the rotation speed ratio of the middle rear cleaning roller 14 to the rear cleaning roller 13 is equal to the draft multiple of the rear drafting zone. The rotation of the right middle rear connecting pin 35 then drives the right middle front connecting pin 36 to rotate through the second connecting belt 22, so as to drive the middle front cleaning roller 15 to rotate, and the rotation speed ratio of the middle front cleaning roller 15 to the middle rear cleaning roller 14 is equal to the tension draft multiple of the middle finishing zone. The rotation of the right middle front connecting pin 36 then drives the front connecting pin to rotate through the third connecting belt 23, so as to drive the front cleaning roller 16 to rotate, and the rotation speed ratio of the front cleaning roller 16 to the middle front cleaning roller 15 is equal to the draft multiple of the front drafting zone.

[0033] During processing, 6 - 8 sliver of fibers processed by carding or combing are fed into the drafting system together. The total drafting ratio of the drafting system is set equal to the number of slivers of fibers fed in. The fed slivers of fibers are fed into the drafting system through the back feed nip after passing through the sliver guiding device. A linear drafting effect is formed in the back drafting zone between the back feed nip and the middle-back feed nip to obtain a back drafted sliver. Under the linear drafting effect in the back zone, the fibers in each sliver of fibers change from a relatively loose state to a tensioned state, and then from the tensioned state to a state where they slide relative to each other. During this process, the fibers in the sliver of fibers slide due to speed change. When the fiber speed change point is located behind the concentrated speed change line, at this time, the front end of the fiber changes speed first, and then the rear end changes speed later due to the large extrusion and friction force between adjacent fibers, so that the front end that changes speed first straightens the front hook during the process of pulling the rear end that changes speed later. When the fiber speed change point is located on the concentrated speed change line, at this time, the front end of the fiber changes speed as a whole first and simultaneously pulls the main fiber body part in contact and connection with the front end to change speed, and then the main fiber body part pulls the straightened part of the fiber rear end to change speed, so that the straightened part of the rear end and the hooked end change speed at different times, thus realizing the straightening effect of the rear hook. When the fiber speed change point is located in front of the concentrated speed change line, since the overall force of the fiber from other fibers at this time is small, the fiber changes speed simultaneously as a whole. The back drafted sliver output by the middle-back feed nip is then held and output by the middle-front feed nip. A linear tension drafting effect is formed in the middle finishing zone between the middle-back feed nip and the middle-front feed nip to obtain a middle sliver. During this process, under the linear tension drafting effect, the fibers in the back sliver are always in a tensioned but non-sliding state. The middle drafted sliver output by the middle-front feed nip is then held and output by the front feed nip. A curvilinear drafting effect is formed in the front drafting zone between the middle-front feed nip and the front feed nip to obtain a front sliver. During this process, the middle sliver is pressed down by the pressure bar, so that the middle sliver forms a curvilinear motion in the front drafting zone, and the pressure bar generates a friction effect when pressing down on the middle sliver, thereby providing an additional external friction force field for the fibers in the middle sliver. With the additional external friction force field and a larger drafting ratio set compared to the back drafting zone, more fibers are concentrated at the concentrated speed change line to change speed compared to the back drafting zone, and at the same time, the relative displacement difference at different speed change positions during fiber speed change is larger, thus achieving a better hook straightening effect. The front sliver changes its arc and is then output through the front output nip. After the output front slivers are merged through the gathering effect of the gathering bell mouth, the required fiber lap is obtained. The fiber lap is continuously wound around the bobbin.

[0034] During the drafting process, due to the high-pressure pressing and conveying of the fibers by each roller, some fibers in the sliver will occasionally wind around each rubber-covered roller, so it is necessary to clean each rubber-covered roller; during the cleaning process, the negative pressure generated by the negative-pressure suction system enters the negative-pressure cavity 24, and under the driving of the second motor 20, the cleaning device rotates. When the negative-pressure inlet hole 17 on the cleaning roller of the rear cleaning roller 13, or the middle-rear cleaning roller 14, or the middle-front cleaning roller 15, or the front cleaning roller 16 rotates to be in an interleaved state with the negative-pressure alignment hole 25 on the corresponding rear arc-shaped groove 28, or middle-rear arc-shaped groove 29, or middle-front arc-shaped groove 30, or front arc-shaped groove 31, the negative pressure in the negative-pressure cavity 24 enters from the negative-pressure inlet hole 17 into the negative-pressure alignment hole 25 and then into the cleaning adsorption hole 18, so as to act on the corresponding rubber-covered roller below the cleaning adsorption hole 18, so that an air flow movement is formed in which the external air flow flows along the cleaning adsorption hole 18, the negative-pressure alignment hole 25, and the negative-pressure inlet hole 17 into the negative-pressure cavity 24 on the rubber-covered roller, so as to adsorb the short fibers on the corresponding rubber-covered roller onto the stationary filter screen 19, thus realizing the automatic cleaning function of the rubber-covered roller. At this time, it is set that when the rear rubber-covered roller 2 rotates one circle, the cleaning roller of the rear cleaning roller 13 just turns through the radian size of the minor axis of the ellipse of the cleaning adsorption hole 18, so as to realize the cleaning of the cleaning adsorption hole 18 at the cleaning roller of the rear cleaning roller 13 for one week of the corresponding length of the rear rubber-covered roller 2. Since the transmission connections between the rear cleaning roller 13, the middle-rear cleaning roller 14, the middle-front cleaning roller 15, and the front cleaning roller 16 are the same as those between the rear rubber-covered roller 2, the middle-rear rubber-covered roller 4, the middle-front rubber-covered roller 6, and the front rubber-covered roller 8, the cleaning adsorption hole 18 at the cleaning roller of the middle-rear cleaning roller 14 also completes the cleaning of one week of the corresponding length of the middle-rear rubber-covered roller 4, the cleaning adsorption hole 18 at the cleaning roller of the middle-front cleaning roller 15 also completes the cleaning of one week of the corresponding length of the middle-front rubber-covered roller 6, and the cleaning adsorption hole 18 at the cleaning roller of the front cleaning roller 16 also completes the cleaning of one week of the corresponding length of the front rubber-covered roller 8. At the same time, since only one negative-pressure inlet hole 17 on the cleaning roller of the rear cleaning roller 13, the middle-rear cleaning roller 14, the middle-front cleaning roller 15, and the front cleaning roller 16 is in an interleaved state with the negative-pressure alignment hole 25 on the corresponding rear arc-shaped groove 28, middle-rear arc-shaped groove 29, middle-front arc-shaped groove 30, and front arc-shaped groove 31 at any time, only one cleaning group is in the working state at any time, thus greatly reducing the negative pressure of the negative-pressure suction system in the negative-pressure cavity 24 and reducing the energy consumption required for system cleaning.

[0035] After using for a certain period and when the draw frame is in a stopped working state, swing the swing assembly 27 upward, remove the rear cleaning roller 13, middle-rear cleaning roller 14, middle-front cleaning roller 15, and front cleaning roller 16 from the swing assembly 27. Use a certain external force to remove the detachable surface 33 of the cleaning roller cylinder of the rear cleaning roller 13, or the middle-rear cleaning roller 14, or the middle-front cleaning roller 15, or the front cleaning roller 16. Then remove the filter screen 19 connected to the detachable surface 33 inside the cleaning roller cylinder, clean the fibers on the removed filter screen 19, then insert one end of the filter screen support cross bar 32 into the corresponding filter screen 19 insertion holes respectively, and then adsorb the detachable surface 33 on the right port of the corresponding cleaning roller cylinder through the magnet on it. Finally, embed and install the rear cleaning roller 13, middle-rear cleaning roller 14, middle-front cleaning roller 15, and front cleaning roller 16 on the swing assembly 27 to realize the cleaning process of the cleaning roller cylinder.

[0036] The structure, features and function effects of the present invention have been described in detail based on the embodiments shown in the drawings. The above is only the preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present invention, or equivalent embodiments modified into equivalent changes, still within the spirit covered by the specification and drawings, shall be within the protection scope of the present invention.

Claims

1. A high-speed drawing cleaning device, comprising a drafting system and a cleaning system. The drafting system includes back, middle-back, middle-front, and front roller pairs, characterized in that: The cleaning system is arranged above the drafting system. The cleaning system includes a cleaning device and a negative pressure device. The cleaning device includes rear, middle rear, middle front and front cleaning rollers of the same structure which are connected to each other through a pulley transmission and are installed on the swing assembly. Each cleaning roller includes a hollow cleaning roller. The right circular surface of the cleaning roller is a detachable surface, and the left circular surface is connected through a bearing. There are 3-6 circular negative pressure inlet holes arranged along the length direction on the side of the cleaning roller. There are elliptical cleaning adsorption holes on the cleaning rollers opposite to each negative pressure inlet hole. The cleaning adsorption holes will cause the cleaning rollers where they are located to have no gravity in the circumferential direction. Complex full coverage, a filter assembly that can be inserted and connected to the left circular surface is provided in the cleaning roller, a negative pressure device is provided on the upper part of the cleaning device, the negative pressure device includes a hollow and closed negative pressure cavity that is detachably connected to the swing assembly, and rear, middle rear, middle front and front arc-shaped grooves that are respectively embedded and connected to the rear, middle rear, middle front and front cleaning rollers are provided in sequence along the width direction of the negative pressure cavity, and negative pressure alignment holes with geometric structures and quantities that are consistent with the negative pressure inlet holes on the cleaning rollers of the rear, middle rear, middle front and front cleaning rollers are provided at the topmost arc surfaces of the rear, middle rear, middle front and front arc-shaped grooves.

2. The high-speed drawing cleaning device according to claim 1, wherein: The rear roller pair includes the rear lower roller and the rear upper rubber roller, the middle rear roller pair includes the middle rear lower roller and the middle rear upper rubber roller, the middle front roller pair includes the middle front lower roller and the middle front upper rubber roller, and the front roller pair includes the front lower roller and the front upper rubber roller. The rear lower roller, the middle rear lower roller, the middle front lower roller and the front lower roller have the same structure, including a roller shaft. The roller shaft is a solid cylindrical structure. A roller sleeve made of the same material as the roller shaft is sleeved on the middle part of the roller shaft. The roller sleeve and the roller shaft are integrally fixedly connected. A threaded structure is provided on the roller sleeve. The roller shaft is installed on the car surface of the drawing frame. A guide roller is also provided on the front lower roller. The rear upper rubber roller, the middle rear upper rubber roller, the middle front upper rubber roller, the front upper rubber roller and the guide roller have the same structure, including the rubber roller axis, The rubber roller comprises an iron shell, an elastic covering and a needle roller bearing. The axis of the rubber roller is a solid cylindrical structure. The axis of the rubber roller is wrapped with an elastic covering through the iron shell of the rubber roller. The elastic covering is made of rubber. The iron shell of the rubber roller and the axis of the rubber roller are rollingly connected through needle roller bearings. The rear upper rubber roller, the middle rear upper rubber roller, the middle front upper rubber roller, the front upper rubber roller and the guide roller are installed on the pressure assembly. The roller shaft of the front lower roller is driven to rotate by the first motor. The roller shaft of the middle front lower roller is connected to the roller shaft of the front lower roller by the first reduction gear group. The roller shaft of the middle rear lower roller is connected to the roller shaft of the middle front lower roller by the second reduction gear group. The roller shaft of the rear lower roller is connected to the roller shaft of the middle rear lower roller by the third reduction gear group.

3. A high-speed drawing cleaning device according to claim 1, characterized in that: The cleaning roller is made of iron. The right circular surface of the cleaning roller is set as a detachable surface. The detachable surface is detachably fixedly connected to the right port of the cleaning roller. A fixed magnetic magnet is provided on the outer circumference of one side of the detachable surface. The detachable surface is fixedly adsorbed on the right port of the cleaning roller by the magnet, and the detachable surface can be removed by external force. The left circular surface of the cleaning roller is closed and connected to the left port of the cleaning roller through a bearing, so that the left circular surface can remain stationary when the cleaning roller rotates.

4. The high-speed drawing cleaning device according to claim 2, characterized in that: A left rear connecting pin is fixedly provided on the left circular surface of the cleaning roller of the rear cleaning roller, and a right rear connecting pin is replaceably provided on the right side. The right rear connecting pin is driven to rotate by the second motor through a driving belt. A left middle rear connecting pin is fixedly provided on the left circular surface of the cleaning roller of the middle rear cleaning roller, a left middle front connecting pin is fixedly provided on the left circular surface of the cleaning roller of the middle front cleaning roller, and a left front connecting pin is fixedly provided on the left circular surface of the cleaning roller of the front cleaning roller. A right middle rear connecting pin is replaceably provided on the right circular surface of the cleaning roller of the middle rear cleaning roller, and a right middle front connecting pin is replaceably provided on the right circular surface of the cleaning roller of the middle front cleaning roller. A connecting pin, a right front connecting pin is replaceably provided on the right circular surface of the cleaning roller of the front cleaning roller, the right rear connecting pin and the right middle rear connecting pin are connected by a first connecting belt transmission, and the diameter ratio of the right rear connecting pin and the right middle rear connecting pin is equal to the gear ratio of the third reduction gear set, the right middle rear connecting pin and the right middle front connecting pin are connected by a second connecting belt transmission, and the diameter ratio of the right middle rear connecting pin and the right middle front connecting pin is equal to the gear ratio of the second reduction gear set, the right middle front connecting pin and the front connecting pin are connected by a third connecting belt transmission, and the diameter ratio of the right middle front connecting pin and the front connecting pin is equal to the gear ratio of the first reduction gear set.

5. A high-speed drawing cleaning device according to claim 1, characterized in that: The rear end of the swing assembly is sleeved inside the connecting cross bar located on the machine table surface. The swing assembly can swing up and down around the connecting cross bar under the action of external force. At both ends of the swing assembly, there are respectively a left rear embedding claw, a left middle rear embedding claw, a left middle front embedding claw, a left front embedding claw, a right rear embedding claw, a right middle rear embedding claw, a right middle front embedding claw, and a right front embedding claw. The outer parts of the right rear connecting pin, right middle rear connecting pin, right middle front connecting pin, right front connecting pin, left rear connecting pin, left middle rear connecting pin, left middle front connecting pin, and left front connecting pin are respectively sleeved with a right rear fixing pin, a right middle rear fixing pin, a right middle front fixing pin, a right front fixing pin, a left rear fixing pin, a left middle rear fixing pin, a left middle front fixing pin, and a left front fixing pin through bearings. The left rear fixing pin and the right rear fixing pin are respectively fixedly embedded in the left rear embedding claw and the right rear embedding claw. The left middle rear fixing pin and the right middle rear fixing pin are respectively fixedly embedded in the left middle rear embedding claw and the right middle rear embedding claw. The left middle front fixing pin and the right middle front fixing pin are respectively fixedly embedded in the left middle front embedding claw and the right middle front embedding claw. The left front fixing pin and the right front fixing pin are respectively fixedly embedded in the left front embedding claw and the right front embedding claw. After the swing assembly swings downward, the rear cleaning roller, the middle rear cleaning roller, the middle front cleaning roller, and the front cleaning roller all swing downward and are respectively located directly above the rear gluing roller, the middle rear gluing roller, the middle front gluing roller, and the front gluing roller, and maintain a certain distance from each other. And at this time, the cleaning device is in the working state. After the swing device swings upward, the rear cleaning roller, the middle rear cleaning roller, the middle front cleaning roller, and the front cleaning roller all swing upward, and at this time, the cleaning device is in the non - working state.

6. The high-speed drawing cleaning device according to claim 1, characterized in that: The negative pressure inlet hole is a circular hole with a diameter of 5 - 10 mm. There are 3 - 6 negative pressure inlet holes arranged along the length direction of the cleaning roller barrel, and each negative pressure inlet hole is not on the same horizontal straight line. The minor axis length of the cleaning adsorption hole is greater than the diameter of the negative pressure inlet hole. The connection line between the center of the negative pressure inlet hole and the center of the cleaning adsorption hole directly opposite to it is perpendicular to the axis of the cleaning roller barrel.

7. A high-speed drawing cleaning device according to claim 1, characterized in that: The filter screen assembly includes a filter screen with a rectangular structure. On both sides of the filter screen in the length direction, there are respectively filter screen support cross bars. The filter screen support cross bars are fixedly connected to the filter screen. One end of the filter screen support cross bar can be inserted and connected to the left circular surface of the cleaning roller barrel. There are 2 filter screen insertion holes on the left circular surface of the cleaning roller barrel. One end of the 2 filter screen support cross bars is respectively inserted into the corresponding filter screen insertion holes, and the installed filter screen is kept horizontal with the machine table surface of the drawing frame.

8. A high-speed drawing cleaning device according to claim 1, characterized in that: The negative pressure cavity is interconnected with the negative pressure suction system of the drawing frame. The negative pressure cavity is detachably and fixedly connected to the swing assembly. Along the width direction of the negative pressure cavity, there are successively arranged a rear arc - shaped groove, a middle rear arc - shaped groove, a middle front arc - shaped groove, and a front arc - shaped groove. The rear arc - shaped groove, the middle rear arc - shaped groove, the middle front arc - shaped groove, and the front arc - shaped groove are arranged from the rear to the front along the length direction of the negative pressure cavity. And the arc - shaped surfaces on the upper sides of the rear cleaning roller, the middle rear cleaning roller, the middle front cleaning roller, and the front cleaning roller are respectively embedded in the rear arc - shaped groove, the middle rear arc - shaped groove, the middle front arc - shaped groove, and the front arc - shaped groove, and keep in smooth contact and close fit.

9. The high-speed drawing cleaning device according to claim 1, characterized in that: The swinging device swings downward, so that the cleaning device and the negative pressure device swing downward to be in the working state. At any time, either only one negative pressure inlet hole on the cleaning roller, the middle and rear cleaning roller, the middle and front cleaning roller, and the front cleaning roller or no negative pressure inlet hole is in an interleaved state with the negative pressure alignment holes on the corresponding rear arc-shaped groove, middle and rear arc-shaped groove, middle and front arc-shaped groove, and front arc-shaped groove, so that at any time, either only one cleaning adsorption hole on the cleaning roller or no cleaning adsorption hole is in the cleaning working state, either only one cleaning adsorption hole on the middle and rear cleaning roller or no cleaning adsorption hole is in the cleaning working state, either only one cleaning adsorption hole on the middle and front cleaning roller or no cleaning adsorption hole is in the cleaning working state, and either only one cleaning adsorption hole on the front cleaning roller or no cleaning adsorption hole is in the cleaning working state.

10. The high-speed drawing cleaning device according to claim 2, characterized in that: The negative pressure amount in the negative pressure cavity is set according to the front glue applicator roller that rotates the fastest and where impurities are most likely to accumulate.

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