CN116575149A - Air current opener - Google Patents

Abstract

The invention belongs to the field of cotton openers, and in particular relates to an airflow opener, which includes a casing, a feed channel, a ring plate, a connecting rod, a cylinder, a baffle, a return spring, an arc bar, a motor A, a work roll, Feeding roller, pressing roller, motor B, transmission belt, depilling roller, motor C, wherein the cylindrical opening cavity A of the casing is installed with a coaxial cylinder driven by motor A and two motors A The ring plate rotates synchronously under the drive. The present invention is achieved through the interaction between the baffle plate on the inner cylinder of the opening chamber A and the two arc strips on the fixed shaft and the difference between the connecting rod in the opening chamber A and the gap between the feeding side and the discharging side of the opening chamber A. The less and thinner fibers carried by the wire drawing on the connecting rod can be further loosened by the wire drawing on the two work rolls under the action of the wind force at the upper end of the opening chamber A, and the loosening efficiency of the fibers by the work rolls is improved .

Description

Airflow cotton opener

technical field

The invention belongs to the field of cotton openers, in particular to an airflow opener.

Background technique

Cotton opener is a device for loosening raw material fibers, which loosens large entangled fibers into small pieces or bundles by tearing.

The existing cotton opener generally puts the raw material from the feeding curtain manually, and the raw material on the feeding curtain is sent between the two feeding rollers after being compacted by the pressure roller, and the two feeding rollers send the raw material to the cylinder. Conveying, the fibers are preliminarily torn and loosened under the action of the cylinder and the two feeding rollers, and the fibers carried by the cylinder are further loosened under the action of the two work rolls and attached to the On the cylinder, it is finally stripped from the cylinder by beaters and output, and the dirt in the raw fiber falls into the lower dust grid to be separated.

There are following problems in the above process:

When the cylinder, the two work rolls and the beating hand cooperate with each other, the wire drawing on the cylinder, the two work rolls and the beating hand will be worn. After one end of use, the ability of the cylinder to carry fibers and the ability of the work roll to tear fibers And the ability of the beater to strip the hair is weakened, resulting in a reduction in the loosening efficiency of the fiber.

In the process of tearing and loosening fibers, if the fibers covered by the cylinder are not many and thin, then, due to the large gap between the work roll and the cylindrical surface of the cylinder, the number of fibers that the drawing wire on the work roll touches reduced, leading to a decrease in the efficiency of fiber release.

The discharge efficiency of soil impurities during the fiber loosening process is low, so that the finally decomposed fibers will carry more soil impurities.

The structure used by the beater to strip the fiber from the cylinder often retains more fibers and reduces the efficiency of the beater to strip the fiber.

The present invention designs an airflow cotton opener to solve the above problems.

Contents of the invention

In order to solve the above-mentioned defects in the prior art, the present invention discloses an airflow opener, which is realized by adopting the following technical solutions.

An air flow opener, which includes a casing, a feed channel, a ring plate, a connecting rod, a cylinder, a baffle, a return spring, an arc bar, a motor A, a work roll, a feed roll, a pressure roll, a motor B, Conveyor belt, depilling roller, motor C, wherein the cylindrical opening cavity A of the casing is installed with a coaxial cylinder driven to rotate by motor A and two ring plates that rotate synchronously under the drive of motor A; The ring plates are synchronously connected by a number of connecting rods that uniformly surround the cylinder in the circumferential direction and have a radial distance between the cylinders. The connecting rods are evenly and densely distributed along the axial direction of the cylinder; the ring plate rotates in the same direction as the cylinder rotates. The direction is the same and the rotation speed of the ring plate is lower than the rotation speed of the cylinder; the feeding channel at the feeding port of the opening chamber A is installed with a conveyor belt that is driven by the motor B to convey the raw materials to the feeding port; the feeding port is installed with a conveyor belt There are two feeding rollers installed in the feeding port to feed the raw material compacted by the pressure roller on the conveyor belt into the opening chamber A; the opening chamber B on the inner wall of the opening chamber A is installed There are two work rolls that rotate in the same direction and at the same speed driven by motor B, and the rotation direction of the work roll is the same as that of the cylinder; the work roll surface is uniformly covered with drawing wire B that is not interlaced with drawing A; drawing B is connected to the connecting rod The wires A on the wire together tear and loosen the fed raw fibers and make the raw fibers finally form a loose cotton web attached to the wires A.

The cylindrical opening chamber C connected with the opening chamber A is equipped with a stripping roller driven by a motor C to rotate, and the rotation direction of the stripping roller is opposite to the rotation direction of the cylinder; With the help of the wind from the air inlet at the top of chamber A, the cotton web on drawing A is stripped and brought to the discharge port without interlacing with drawing A; There is a baffle plate to slide in the direction perpendicular to the axis of the cylinder and two return springs are installed to reset the baffle plate; the baffle plate fits between the corresponding connecting rod and the cylinder on the side of the discharge port through its cooperation with the two arc strips in the cylinder. The gap is closed; the bottom of the opening chamber A has a miscellaneous outlet.

As a further improvement of this technology, the casing is installed on the ground through a bracket; an air inlet is installed at the air inlet of the casing, and a miscellaneous discharge is installed at the miscellaneous outlet.

As a further improvement of the present technology, pressing teeth are evenly and densely distributed on the roller surface of the pressing roller in the circumferential direction.

As a further improvement of this technology, the transmission roller where the transmission belt is located is installed in the feed channel through the rotating shaft D, and the rotating shaft D is connected to the output shaft of the motor B; the gear J installed on the rotating shaft D and the rotating shaft C installed on the pressure roller The gear I on the top meshes; the shaft B where the two feeding rollers are located is equipped with a gear F, and the two gears F mesh with each other; the gear F corresponding to the upper feeding roller meshes with the gear H on the shaft C through gear G.

As a further improvement of this technology, the transmission ratio of the gear I and the gear J is 1:1.

As a further improvement of this technology, the depilling roller is installed in the cotton opening cavity C through the rotating shaft E; the rotating shaft E is connected with the output shaft of the motor C through transmission.

As a further improvement of this technology, the cylinder rotates on a fixed shaft fixed to the casing; the arc is fixed on the fixed shaft through a fixed rod; the two ring plates are respectively nested and rotated on the two ring sleeves at both ends of the cylinder On B; the ring sleeve A on each ring plate rotates in the circular groove at the corresponding end of the casing, and the ring gear in the ring sleeve A meshes with three gears E installed on the end surface of the casing and evenly distributed in the circumferential direction; located in the casing The three gears E on the same end face mesh with the three gears D on the corresponding end face of the casing respectively, and the three gears D mesh with the gear C on the corresponding end ring sleeve B at the same time.

As a further improvement of this technology, gear B and sprocket A are respectively installed on the two collars B; gear B meshes with gear A on the output shaft of motor A; sprocket A is connected to the rotating shaft of the two work rolls through the chain The sprocket B on A is connected in transmission.

As a further improvement of this technology, the distance between the depilling roller and the inner wall of the opening chamber C is greater than the distance between the cylinder and the 180-degree inner wall of the outlet side of the opening chamber A from the air inlet to the miscellaneous discharge port. Less than the distance between the cylinder and the 180-degree inner wall from the air inlet to the miscellaneous discharge port on the feed port side of the opening chamber A.

As a further improvement of the present technology, feeding teeth are evenly and densely distributed on the roller surface of the feeding roller in the circumferential direction.

Compared with the traditional cotton opener, the wire drawing on the work roll, the wire drawing on the connecting rod that plays the role of cylinder and the wire drawing on the stripping roller in the present invention will not wear because of no interaction, thereby ensuring that the work roll and The fiber loosening efficiency of wire drawing on the connecting rod and the fiber stripping efficiency of the depilling roller.

The present invention is achieved through the interaction between the baffle plate on the inner cylinder of the opening chamber A and the two arc strips on the fixed shaft and the difference between the connecting rod in the opening chamber A and the gap between the feeding side and the discharging side of the opening chamber A. The less and thinner fibers carried by the wire drawing on the connecting rod can be further loosened by the wire drawing on the two work rolls under the action of the wind force at the upper end of the opening chamber A, and the loosening efficiency of the fibers by the work rolls is improved .

The wind force sent into the air inlet at the upper end of the opening chamber A in the present invention can effectively separate the soil impurities in the fiber and blow the soil impurities to the waste discharge port at the lower end of the opening chamber A, so that the fibers that are finally loosened It does not carry or carry less dirt, making the fiber cleaner after loosening.

In the present invention, the wind force sent in from the air inlet at the upper end of the opening chamber A can blow the cotton web attached to the connecting rod into the opening chamber C and effectively strip the fibers on the stripping roller to ensure that there is no adhesion and retention on the stripping roller fiber, to ensure the stripping efficiency of the stripping roller to the fiber drawn on the connecting rod.

The invention has simple structure and better use effect.

Description of drawings

Fig. 1 is a schematic diagram of two viewing angles of the present invention.

Fig. 2 is a schematic cross-sectional view of the whole of the present invention.

Fig. 3 is a schematic cross-sectional view of the drive cooperation of the transmission roller, the pressure roller and two feed rollers.

Fig. 4 is two cross-sectional schematic diagrams of the structure in the opening chamber A.

Fig. 5 is a schematic diagram of two working rolls and cylinder transmission cooperation.

Fig. 6 is a schematic cross-sectional view of the driving structure of the depilling roller.

Fig. 7 is a schematic diagram of a pressure roller and two feed rollers.

Fig. 8 is a schematic diagram of the work roll structure.

Fig. 9 is a schematic diagram of the structure between two circular plates and its cross section.

Fig. 10 is a schematic diagram of the cylinder and its cross-section.

Fig. 11 is a schematic cross-sectional view of the structure on the cylinder.

Fig. 12 is a structural schematic diagram of the depilling roller.

Label names in the figure: 1. bracket; 2. casing; 3. opening chamber A; 4. opening chamber B; 5. air inlet; 6. miscellaneous discharge port; 7. feeding port; 8. feeding channel ;9. Cotton opening cavity C; 10. Material outlet; 11. Air inlet channel; 12. Miscellaneous discharge channel; 13. Ring sleeve A; circle; 18, ring sleeve B; 19, cylinder; 20, chute; 21, baffle plate; 22, return spring; 23, fixed shaft; 24, arc bar; 25, motor A; 26, gear A; 27, Gear B; 28, gear C; 29, gear D; 30, gear E; 31, sprocket A; 32, chain; 33, work roll; 34, drawing B; 35, shaft A; 36, sprocket B; 37 , feeding roller; 38, feeding tooth; 39, rotating shaft B; 40, gear F; 41, gear G; 42, gear H; 43, rotating shaft C; 44, pressing roller; 45, pressing tooth; 46, gear I ;47, gear J; 48, shaft D; 49, motor B; 50, transmission roller; 51, transmission belt; 52, stripping roller; 53, wire drawing C;

Implementation

The accompanying drawings are all schematic diagrams of the implementation of the present invention, so as to understand the principle of structural operation. The specific product structure and proportional size can be determined according to the use environment and conventional technology.

As shown in Figures 1 and 2, it includes a casing 2, a feed channel 8, a ring plate 14, a connecting rod 15, a cylinder 19, a baffle 21, a return spring 22, an arc 24, a motor A25, a work roll 33, Feed roller 37, pressure roller 44, motor B49, conveyer belt 51, hair-stripping roller 52, motor C55, wherein as shown in Figure 1, 2, 4, in the cylindrical opening chamber A3 of casing 2, be installed with A25 drives the rotating coaxial cylinder 19 and two ring plates 14 that rotate synchronously under the drive of motor A25; It is synchronously connected with the connecting rod 15 with a radial distance between the cylinder 19, and the drawing wire A16 is evenly and densely distributed on the connecting rod 15 along the axial direction of the cylinder 19; The direction of rotation is the same and the rotation speed of the ring plate 14 is lower than the rotation speed of the cylinder 19; The conveyor belt 51 for conveying raw materials at the feed port 7; the pressure roller 44 that compacts the raw material on the conveyor belt 51 is installed at the feed port 7, and there are two pressure rollers 44 that compact the conveyor belt 51 The raw materials are fed into the feeding roller 37 of the opening chamber A3; as shown in Figures 2, 4, and 5, two rollers are installed in the opening chamber B4 on the inner wall of the opening chamber A3 to rotate at the same speed under the drive of the motor B49. Work roll 33, the rotation direction of work roll 33 is the same as the rotation direction of cylinder 19; as shown in Figure 2 and 8, the drawing wire B34 which is not interlaced with the drawing wire A16 is uniformly and densely distributed on the surface of the working roll 33; The drawn wires A16 jointly tear and loosen the fed raw material fibers and make the raw material fibers finally form a loosened cotton web attached to the drawn wires A16.

As shown in Figures 1, 2, and 6, a depilling roller 52 driven by a motor C55 to rotate is installed in the cylindrical opening chamber C9 communicated with the opening chamber A3, and the depilation roller 52 rotates in the opposite direction to the cylinder 19. ; As shown in Figures 2 and 12, the surface of the stripping roller 52 is densely covered with the cotton web on the drawing A16 and brought to the discharge port 10 under the assistance of the wind that enters from the top air inlet 5 of the cotton opening cavity A3 and is connected with the drawing A16 has no staggered wire drawing C53; as shown in Figures 2, 10, and 11, in the chute 20 evenly distributed in the upper direction of the cylindrical surface of the cylinder 19, a baffle plate 21 is installed and slid along the direction perpendicular to the axis of the cylinder 19. Two return springs 22 that reset the baffle 21; the baffle 21 closes the gap between the corresponding connecting rod 15 and the cylinder 19 on the side of the discharge port 10 through its cooperation with the two arc bars 24 in the cylinder 19 ; There is a miscellaneous outlet 6 at the bottom of the opening chamber A3.

As shown in Figures 1 and 2, the casing 2 is installed on the ground through a bracket 1; an air inlet duct 11 is installed at the air inlet 5 of the casing 2, and a miscellaneous passage 12 is installed at the 6 miscellaneous outlets.

As shown in FIGS. 2 and 7 , pressing teeth 45 are uniformly and densely distributed on the roller surface of the pressing roller 44 in the circumferential direction.

As shown in Figures 1, 2, and 3, the transmission roller 50 where the transmission belt 51 is located is installed in the feed channel 8 through the rotating shaft D48, and the rotating shaft D48 is connected to the output shaft of the motor B49; the gear J47 installed on the rotating shaft D48 and The gear I46 that is installed on the rotating shaft C43 where the pressure roller 44 is located is engaged; the rotating shaft B39 where the two feeding rollers 37 are located is equipped with a gear F40, and the two gears F40 are engaged with each other; the corresponding gear F40 of the upper feeding roller 37 passes through the gear. G41 meshes with the gear H42 on the rotating shaft C43.

As shown in Figures 1 and 3, the transmission ratio of the gear I46 and the gear J47 is 1:1, which ensures that the linear speeds of the pressure roller 44 and the conveyor belt 51 are equal, thereby ensuring that the raw material can be effectively compacted by pressure loss.

As shown in Figures 2 and 6, the depilling roller 52 is installed in the cotton opening cavity C9 through the rotating shaft E54; the rotating shaft E54 is connected to the output shaft of the motor C55 through transmission.

As shown in Figures 2 and 4, the cylinder 19 rotates on the fixed shaft 23 fixedly connected to the casing 2; the arc bar 24 is fixed on the fixed shaft 23 through a fixed rod; Two ring sleeves B18 at both ends of the cylinder 19; the ring sleeve A13 on each ring plate 14 rotates in the circular groove at the corresponding end of the casing 2, and the ring gear 17 in the ring sleeve A13 is installed on the end surface of the casing 2 and circumferentially The three gears E30 evenly distributed mesh; the three gears E30 located on the same end face of the casing 2 respectively mesh with the three gears D29 on the corresponding end face of the casing 2, and the three gears D29 are simultaneously engaged with the gears on the corresponding end ring sleeve B18 C28 engages.

As shown in Figures 2, 4, and 5, a gear B27 and a sprocket A31 are respectively installed on the two ring sleeves B18; the gear B27 meshes with the gear A26 on the output shaft of the motor A25; The sprocket B36 on the rotating shaft A35 where the work roll 33 is located is connected by transmission.

As shown in Figure 2, the distance between the depilling roller 52 and the inner wall of the opening chamber C9 is greater than the distance between the cylinder 19 and the 180-degree inner wall from the air inlet 5 to the miscellaneous discharge port 6 on the side of the outlet 10 of the opening chamber A3. The distance between them is smaller than the distance between the cylinder 19 and the 180-degree inner wall from the air inlet 5 to the miscellaneous discharge port 6 on the side of the cotton opening chamber A3 feed port 7 .

As shown in FIGS. 2 and 7 , feeding teeth 38 are uniformly and densely distributed on the roller surface of the feeding roller 37 in the circumferential direction.

The working process of the present invention: in the initial state, the partial baffle plate 21 on the side of the discharge port 10 is in a state of closing and blocking the gap between the corresponding side connecting rod 15 and the cylinder 19 under the pressure of the two arc bars 24, All return springs 22 are in tension.

When it is necessary to use the present invention to tear and loosen the raw material fibers, first start the motor A25, the motor B49 and the motor C55 at the same time, and the motor A25 drives the cylinder 19 to rotate through the gear A26, the gear B27 and the ring sleeve B18, and the cylinder 19 drives the cylinder 19 on it. All the baffles 21 rotate synchronously, and the two rings B18 respectively drive all the connecting rods 15 between the two rings 14 to rotate around the fixed shaft 23 through the corresponding gear C28, gear D29, gear E30, ring gear 17 and ring A13 , the rotation direction of the cylinder 19 is the same as the direction in which the connecting rod 15 rotates around the fixed axis 23 , and the rotation speed of the cylinder 19 is greater than the direction in which the connecting rod 15 rotates around the fixed axis 23 . At the same time, the ring sleeve B18 drives the two work rolls 33 on the two rotating shafts A35 to rotate synchronously through the sprocket A31, the chain 32 and the two sprockets B36. The rotation direction of the two work rolls 33 is the same and the same as the rotation direction of the connecting rod 15 around the fixed shaft 23 .

The motor B49 drives the transmission belt 51 to run through the rotating shaft D48 and the transmission roller 50, the rotating shaft D48 drives the pressure roller 44 to rotate through the gear J47, the gear I46 and the rotating shaft C43, and the rotating shaft C43 drives the two rotating shafts B39 through the gear H42, the gear G41 and two gears F40 The two feed rollers 37 on the top rotate synchronously and the rotation directions of the two feed rollers 37 are opposite.

The motor C55 drives the hair removal roller 52 on the rotating shaft E54 to rotate, and the rotation direction of the hair removal roller 52 is opposite to that of the cylinder 19 .

Then, blow air into the cotton opening chamber A3 through the air inlet channel 11 and the air inlet 5, and a part of the wind entering the cotton opening chamber A3 passes through the gap between the connecting rod 15 on the side of the discharge port 10 and the inner wall of the cotton opening chamber A3. The cavity C9 is discharged from the discharge port 10, and the other part is discharged from the gap between the cylinder 19 on the side of the feed port 7 and the inner wall of the opening chamber A3 through the miscellaneous discharge port 6 and the miscellaneous discharge channel 12.

Next, the raw material fiber is placed on the conveyor belt 51, and the raw material fiber is driven by the conveyor belt 51 and compacted by the pressure roller 44, and then sent into the opening chamber A3 by two feed rollers 37, and the raw material fiber entering the cotton opening chamber A3 The drawing wire A16 on the connecting rod 15 and the drawing wire B34 on the two work rolls 33 are completely loosened by the mutual tearing of the drawing wire A16 on the connecting rod 15 and brought to the cotton opening chamber C9 by the drawing wire A16 on the connecting rod 15 in the state of cotton web, and then it is carried by the depilling roller 52 The drawing wire C53 peels off and moves toward the discharge port 10.

Since the distance between the depilling roller 52 and the inner wall of the opening chamber C9 is greater than the distance between the cylinder 19 and the 180-degree inner wall of the opening chamber A3 outlet 10 side from the air inlet 5 to the miscellaneous discharge port 6, it is smaller than the cylinder 19 and the distance between the 180-degree inner wall from the air inlet 5 to the miscellaneous discharge port 6 on the 7 side of the opening chamber A3, so the gap between the connecting rod 15 from the outlet 10 side and the inner wall of the opening chamber A3 The air volume discharged from the discharge port 10 through the cotton opening chamber C9 is smaller than the air volume discharged from the gap between the cylinder 19 on the side of the feed port 7 and the inner wall of the cotton opening chamber A3 through the miscellaneous discharge port 6 and the miscellaneous discharge channel 12 . The large air volume in the gap between the cylinder 19 on the side of the feeding port 7 and the inner wall of the opening chamber A3 can completely discharge the dirt in the raw fiber, while the air volume between the connecting rod 15 on the side of the feeding port 10 and the inner wall of the opening chamber A3 The small air volume in the gap can blow the depilling roller 52 out of the discharge port 10 from the cotton web of drawing A16 glass on the connecting rod 15 .

In summary, the beneficial effects of the present invention are: in the present invention, the wire drawing on the working roll 33, the wire drawing on the connecting rod 15 and the wire drawing on the depilling roller 52 can not occur because of no interaction. wear, thereby ensuring the fiber loosening efficiency of drawing on the work roll 33 and the connecting rod 15 and the fiber stripping efficiency of the depilling roller 52.

In the present invention, through the interaction between the baffle plate 21 on the inner cylinder 19 of the opening chamber A3 and the two arc bars 24 on the fixed shaft 23 and the connection rod 15 in the opening chamber A3 and the feeding side and output of the opening chamber A3 The difference in the side clearance makes the less and thinner fibers carried by the wire drawing on the connecting rod 15 can be further loosened effectively by the wire drawing on the two work rolls 33 under the action of the wind force sent into the air inlet 5 at the upper end of the opening chamber A3, improving the The work roll 33 loosens the efficiency of the fiber.

The wind force sent in by the air inlet 5 at the upper end of the opening chamber A3 in the present invention can effectively separate the soil impurities in the fibers and blow the soil impurities to the waste discharge port 6 at the lower end of the cotton opening chamber A3 to be discharged, so that the finally loosened No or less soil is carried in the fiber, which makes the fiber cleaner after loosening.

In the present invention, the wind force sent into the air inlet 5 at the upper end of the opening chamber A3 can blow the cotton web attached on the connecting rod 15 into the opening chamber C9 and effectively strip the fibers on the stripping roller 52 to ensure that the stripping roller 52 Do not adhere to remaining fibers on the top, to ensure the stripping efficiency of the depilling roller 52 to the fibers on the drawing on the connecting rod 15.

Claims (10)

1. An air current opener which characterized in that: the cotton stripping machine comprises a machine shell, a feeding channel, a ring plate, a connecting rod, a cylinder, a baffle, a reset spring, an arc bar, a motor A, a working roller, a feeding roller, a compression roller, a motor B, a transmission belt, a cotton stripping roller and a motor C, wherein a coaxial cylinder driven to rotate by the motor A and two ring plates driven to synchronously rotate by the motor A are arranged in a cylindrical cotton stripping cavity A of the machine shell; the two annular plates are synchronously connected with a cylinder through a plurality of connecting rods which uniformly encircle the cylinder in the circumferential direction and have radial intervals between the two annular plates, and the connecting rods are uniformly and densely provided with wire drawing A along the axial direction of the cylinder; the rotation direction of the annular plate is the same as the rotation direction of the cylinder, and the rotation speed of the annular plate is smaller than the rotation speed of the cylinder; a conveying belt which is driven by a motor B to convey raw materials to the feeding port is arranged in a feeding channel at the feeding port of the cotton opening cavity A; a press roller for compacting raw materials on the conveying belt is arranged at the feed inlet, and two feed rollers for feeding the raw materials compacted by the press roller on the conveying belt into the cotton opening cavity A are arranged in the feed inlet; two working rolls which rotate at the same speed and in the same direction under the drive of a motor B are arranged in a cotton opening cavity B on the inner wall of the cotton opening cavity A, and the rotation direction of the working rolls is the same as that of the cylinder; the surface of the working roll is uniformly and densely provided with wire drawing B which is not staggered with the wire drawing A; the wire drawing B and the wire drawing A on the connecting rod jointly tear and debond the fed raw material fiber and enable the raw material fiber to finally form a debonded web attached to the wire drawing A;

a hair peeling roller driven by a motor C to rotate is arranged in a cylindrical cotton opening cavity C communicated with the cotton opening cavity A, and the rotation direction of the hair peeling roller is opposite to that of the cylinder; the surface of the stripping roller is densely covered with a wire drawing C which strips and brings the cotton web on the wire drawing A to a discharge hole under the assistance of wind power entering from an air inlet at the top of the cotton opening cavity A and is not staggered with the wire drawing A; the sliding grooves which are uniformly distributed in the circumferential direction on the cylindrical surface of the cylinder are internally provided with baffle plates in a sliding manner along the direction vertical to the axis of the cylinder, and two reset springs for resetting the baffle plates are arranged; the baffle closes the gap between the corresponding connecting rod and the cylinder at the discharge port side through the cooperation of the baffle and the two arc strips in the cylinder; the bottom of the cotton opening cavity A is provided with a trash discharging port.

2. An air opener according to claim 1, characterized in that: the shell is arranged on the ground through a bracket; an air inlet channel is arranged at the air inlet of the shell, and a trash discharging channel is arranged at the trash discharging port.

3. An air opener according to claim 1, characterized in that: the roller surface of the compression roller is uniformly and densely provided with compression teeth in the circumferential direction.

4. An air opener according to claim 1, characterized in that: the conveying roller where the conveying belt is located is arranged in the feeding channel through a rotating shaft D, and the rotating shaft D is in transmission connection with an output shaft of a motor B; the gear J arranged on the rotating shaft D is meshed with the gear I arranged on the rotating shaft C where the press roller is positioned; the rotating shafts B where the two feeding rollers are positioned are provided with gears F, and the two gears F are meshed with each other; the gear F corresponding to the upper feeding roller is meshed with the gear H on the rotating shaft C through the gear G.

5. An air opener according to claim 4, characterized in that: the transmission ratio of the gear I to the gear J is 1:1.

6. an air opener according to claim 1, characterized in that: the hair stripping roller is arranged in the cotton opening cavity C through a rotating shaft E; the rotating shaft E is in transmission connection with an output shaft of the motor C.

7. An air opener according to claim 1, characterized in that: the cylinder rotates on a fixed shaft fixedly connected with the shell; the arc strip is fixed on the fixed shaft through the fixed rod; the two annular plates are respectively nested and rotated on the two annular sleeves B at the two ends of the cylinder; the ring sleeve A on each ring plate rotates in a circular groove at the corresponding end of the shell, and the gear ring in the ring sleeve A is meshed with three gears E which are arranged on the end face of the shell and are uniformly distributed in the circumferential direction; three gears E positioned on the same end face of the casing are respectively meshed with three gears D on the corresponding end face of the casing in a one-to-one correspondence manner, and the three gears D are simultaneously meshed with gears C on the corresponding end ring sleeve B.

8. An air opener according to claim 7, characterized in that: the two ring sleeves B are respectively provided with a gear B and a chain wheel A; the gear B is meshed with a gear A on the output shaft of the motor A; the chain wheel A is in transmission connection with a chain wheel B on a rotating shaft A where the two working rolls are located through a chain.

9. An air opener according to claim 1, characterized in that: the distance between the stripping roller and the inner wall of the cotton opening cavity C is larger than the distance between the cylinder and the 180-degree inner wall of the cotton opening cavity A from the air inlet to the impurity discharging opening at the discharging opening side and smaller than the distance between the cylinder and the 180-degree inner wall of the cotton opening cavity A from the air inlet to the impurity discharging opening at the feeding opening side.

10. An air opener according to claim 1, characterized in that: the feeding teeth are uniformly distributed on the surface of the feeding roller in a circumferential direction.