A drying device for cotton processing

Abstract

The present invention relates to the technical field of cotton drying, and specifically discloses a drying device for cotton processing, which includes a drying cylinder, a feed inlet opened on the drying cylinder, and further includes a support ring, a semi-circular air duct, a conveyor belt, and a turning member; the drying cylinder, the support ring, and the semi-circular air duct are all concentrically arranged. Two conveying channels that are internally and externally connected are formed between the support ring and the semi-circular air duct, and between the drying cylinder and the support ring. A connecting pipe is connected between the semi-circular air duct and the drying cylinder, and the air outlets of both are directed towards the support ring to dry both sides of the cotton and blow the impurities in the cotton downward. The conveyor belt is mesh-shaped and runs in a closed loop along the outer circumference of the semi-circular air duct, providing power for the movement of the cotton along the conveying channel. The beneficial effects of the present invention are as follows: It can dry both sides of the cotton simultaneously, can turn the cotton during drying to assist in heat dissipation, and can divide the agglomerated cotton during turning.

Description

Technical Field

[0001] The present invention relates to the technical field of cotton drying, and particularly relates to a drying device for cotton processing. Background Art

[0002] The newly picked unginned cotton has a relatively high humidity, and the water content is usually between 15% and 22%. In order to prevent the cotton from mildewing during transportation and storage, it is necessary to dry the cotton in time and reduce the water content of the cotton to less than 8%. Due to the influence of natural weather, the cotton may not be dried in time, so a cotton drying device is needed to quickly dry the cotton.

[0003] The Chinese patent document with the authorization announcement number CN212645195U discloses a drying device for cotton processing, including a housing and a first motor. Symmetrically and fixedly connected to the upper surface of the housing are isolation frames. Inside the isolation frames, a first rotating rod is rotatably connected through bearings. On the surface of the first rotating rod, a first support pipe is fixedly connected. Equally spaced and symmetrically fixedly connected to the surface of the first support pipe are first dispersing rods. Symmetrically opened on the upper surface of the housing are dropping holes, and the dropping holes penetrate through the isolation frames. Fixedly connected to the upper surface of the isolation frames is an enlarged frame. Fixedly connected to one side of the isolation frames is a first motor, and the output end of the first motor passes through the isolation frame and is fixedly connected to the first rotating rod. Symmetrically opened on both sides of the housing are first sliding holes, and inside the first sliding holes, first isolation plates are slidably connected. Fixedly connected to one side of the housing is a drying device. This patent document realizes the comprehensive drying of cotton by continuously turning the cotton during the drying process.

[0004] In the above technical solution, the cotton is dried by stirring during the drying process. However, during the drying process, the cotton is directly placed in the drying cylinder, and the cotton fibers will connect together and form clusters. When the cotton is dried by stirring, the clustered cotton will roll, but the cotton inside will not be turned to the outside due to stirring. Usually, the cotton on the outside has been dried, while the water content of the cotton inside is usually still relatively high, resulting in incomplete drying. Summary of the Invention

[0005] The present invention provides a drying device for cotton processing, aiming to solve the problem of incomplete drying of cotton during drying in related technologies.

[0006] A drying device for cotton processing, including a drying cylinder, a feed inlet opened on the drying cylinder, and further including a support ring, a semi-circular air duct, a conveyor belt, and a turning member; the drying cylinder, the support ring, and the semi-circular air duct are all concentrically arranged. Two inner and outer connected conveying channels are formed between the support ring and the semi-circular air duct, and between the drying cylinder and the support ring. A connecting pipe is connected between the semi-circular air duct and the drying cylinder, and the air outlets of both are oriented towards the support ring to dry both sides of the cotton and blow the impurities in the cotton downward. The conveyor belt is mesh-shaped and runs in a closed loop along the outer circumference of the semi-circular air duct, providing power for the movement of the cotton along the conveying channel.

[0007] The turning member includes a plurality of first toothed plates evenly distributed along the outer circumference of the conveyor belt and a second toothed plate rotatable on the first toothed plate. The first toothed plate and the second toothed plate mesh with each other. A gear is provided at the end of the rotating shaft of the second toothed plate. A plurality of arc-shaped racks meshing with the gear are provided on both the drying cylinder and the support ring to intermittently rotate the gear, and thus the second toothed plate turns the cotton. A torsion spring is provided between the gear and the first toothed plate.

[0008] The beneficial effects of the present invention are as follows: By setting the semi-circular air duct, both sides of the cotton can be dried simultaneously when the cotton is conveyed by the conveyor belt. By setting the turning member, the cotton can be turned when being conveyed to achieve a better drying effect, and at the same time, the turning member can divide the agglomerated cotton when turning the cotton.

[0009] Preferably, a plurality of pressing plates are provided on the drying cylinder and the support ring. When the pressing plates extend into the conveying channel, the cotton between the two first toothed plates is pushed to one side; by setting the pressing plates to push the cotton to move between the two first toothed plates, the cotton between the two pressing plates can be turned.

[0010] Preferably, the plurality of pressing plates are respectively rotatably provided on the drying cylinder and the support ring. A return spring is hinged between the pressing plates and the drying cylinder and the support ring; when the first toothed plate contacts the pressing plate, the pressing plate is pushed to rotate and can be reset after passing over the first toothed plate.

[0011] Preferably, the plurality of pressing plates slide along the radial direction of the drying cylinder and the support ring. An electric telescopic rod is connected to the pressing plate; the electric telescopic rod drives the pressing plate to move, so that the pressing plate squeezes the cotton between the two first toothed plates.

[0012] Preferably, the length of the first toothed plate is greater than the length of the second toothed plate. When the gear is disengaged from the arc-shaped rack, the pressing plate abuts against the first toothed plate; to prevent the pressing plate from contacting the second toothed plate and affecting the reset of the second toothed plate.

[0013] Preferably, a wire mesh plate is movably arranged up and down at the top of the support ring and can be reset. Protrusions that can contact the first toothed plate are evenly distributed on both the front and rear sides of the wire mesh plate. The wire mesh plate vibrates up and down through the protrusions to shake off impurities in the cotton.

[0014] Preferably, a support rod is arranged on the support ring. An expansion rod is arranged between the support rod and the wire mesh plate. A spring is sleeved on the outer periphery of the movable end of the expansion rod. One end of the spring is connected to the wire mesh plate, and the other end is connected to the fixed end of the expansion rod.

[0015] Preferably, arc-shaped plates are arranged in the conveying channels near both ends of the conveyor belt. The arc-shaped plate near the feed inlet is connected to the feed inlet.

[0016] Adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0017] 1. When drying cotton, the cotton is put in through the feed inlet. The cotton moves along with the conveyor belt and successively passes through the inner channel and the outer channel. The two channels can dry both sides of the cotton respectively to ensure the drying effect.

[0018] 2. When the conveyor belt moves, it drives the gear to contact the arc-shaped rack, thereby causing the second toothed plate to rotate. The second toothed plate rotates to turn the cotton over. At the same time, the cotton between two adjacent first toothed plates is pushed by the pressing plate to move towards one side, making the turning of the cotton by the second toothed plate more thorough. When the gear disengages from the arc-shaped rack, the second toothed plate rotates reversely under the action of the torsion spring and turns the cotton that has been turned backward forward again, achieving uniform drying by turning the cotton over.

[0019] 3. When the cotton moves to the top of the support ring along with the conveyor belt, while the turning member turns the cotton over, the first toothed plate contacts the protrusions on the wire mesh plate and causes the wire mesh plate to move up and down. The wire mesh plate moves up and down and pats on the cotton to separate impurities in the cotton. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of the drying cylinder, conveying device, and support ring arrangement of the present invention.

[0022] Figure 3 It is a schematic diagram of the internal structure of the drying cylinder of the present invention.

[0023] Figure 4 It is a schematic diagram of the conveyor belt and the semi-circular air duct of the present invention.

[0024] Figure 5 It is a schematic diagram of the turning member of the present invention.

[0025] Figure 6Schematic structural diagram of the screen plate of the present invention.

[0026] Figure 7 Schematic structural diagram of the first toothed plate and the second toothed plate of the present invention.

[0027] Figure 8 Schematic structural diagram of the semi-circular air duct of the present invention.

[0028] Figure 9 Schematic diagram of the state when the gear passes through below the extrusion plate of the present invention.

[0029] Reference numerals: 1, drying cylinder; 11, feed inlet; 12, arc plate; 13, discharge outlet; 2, support ring; 3, semi-circular air duct; 31, air inlet channel; 32, air outlet channel; 4, conveyor belt; 5, extrusion plate; 51, return spring; 6, turning member; 61, first toothed plate; 62, second toothed plate; 63, gear; 64, arc rack; 65, torsion spring; 7, screen plate; 71, support rod; 72, spring; 73, telescopic rod; 8, protrusion. Detailed implementation manners

[0030] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation to the present invention.

[0031] As Figures 1-8 shown, a drying device for cotton processing includes a drying cylinder 1, a feed inlet 11 opened on the drying cylinder 1, a support ring 2 concentrically arranged with the drying cylinder 1, a semi-circular air duct 3, a conveyor belt 4 wrapped around the outer periphery of the semi-circular air duct 3, an extrusion plate 5, and a turning member 6. Two drying channels communicating inside and outside are formed between the drying cylinder 1 and the semi-circular air duct 3, and between the support ring 2 and the semi-circular air duct 3. The conveyor belt 4 drives the cotton to move along the drying channels and dries the cotton. By arranging the extrusion plate 5, the cotton is moved towards the turning member 6 and the cotton is turned to turn the cotton and thus accelerate the drying of the cotton.

[0032] For the convenience of description, the channel formed between the drying cylinder 1 and the semi-circular air duct 3 is called the outer channel, and the channel formed between the support ring 2 and the semi-circular air duct 3 is called the inner channel. Hot air is provided for drying cotton through the drying cylinder 1 and the semi-circular air duct 3. The drying cylinder 1 provides hot air for the outer channel. The semi-circular air duct 3 includes an air inlet channel 31 and an air outlet channel 32. The hot air entering from the inside of the drying cylinder 1 passes through the cotton and then is discharged from the air outlet channel 32. The air inlet channel 31 provides hot air for the inner channel. The hot air entering from the air inlet channel 31 passes through the cotton and then is discharged from the support ring 2. The drying cylinder 1 and the support ring 2 are provided with an arc-shaped plate 12. An arc-shaped channel is formed between the arc-shaped plate 12 and one end of the conveyor belt 4. The arc-shaped channel connects the inner channel and the outer channel. The conveyor belt 4 conveys the cotton from the inner channel through the arc-shaped channel to the outer channel. An outlet 13 is provided at the end of the outer channel. After the cotton is dried, it is discharged from the outlet 13.

[0033] The conveyor belt 4 includes electric rollers provided at both ends of the semi-circular air duct 3. The semi-circular air duct 3 is provided with a slideway along its outer circumference. The conveyor belt 4 is evenly provided with sliders sliding in the slideway. By sliding the sliders in the slideway, the conveyor belt 4 can wrap the channel of the semi-circular air duct 3 and run along its outer circumference, preventing the conveyor belt 4 from falling off the semi-circular air duct 3. The conveyor belt 4 is of a mesh structure to ensure that hot air can pass through the conveyor belt 4. The mesh holes on the conveyor belt 4 are small enough to support the cotton.

[0034] The turning member 6 includes a plurality of first toothed plates 61 evenly distributed along the outer circumference of the conveyor belt 4 and a second toothed plate 62 rotatable on the first toothed plate 61. The teeth on the first toothed plate 61 and the second toothed plate 62 are meshed. The end of the rotating shaft of the second toothed plate 62 is provided with a gear 63. A plurality of arc-shaped racks 64 are provided on both the drying cylinder 1 and the support ring 2. The arc-shaped racks 64 are meshed with the gear 63. When the conveyor belt 4 runs, when the gear 63 contacts the arc-shaped rack 64, it will drive the second toothed plate 62 to rotate. The rotation of the second toothed plate 62 causes the cotton on the side close to the outer circumference of the conveyor belt 4 to turn to the other side. At the same time, the cotton as a whole moves backward (defining the conveying direction of the conveyor belt 4 as the front), thereby turning over the cotton to be dried. At the same time, when the second toothed plate 62 turns the cotton, if there is cotton agglomerated into small lumps, when the second toothed plate 62 rotates and drives the cotton lump to cross the first toothed plate 61, the cotton lump will be torn apart, so as to prevent the inside of the cotton agglomerated into small lumps from being difficult to dry thoroughly during drying.

[0035] A torsion spring 65 is provided between the gear 63 and the first toothed plate 61. When the gear 63 contacts the arc-shaped rack 64, the second toothed plate 62 rotates and the torsion spring 65 is twisted. After the gear 63 passes over the arc-shaped rack 64, the torsion spring 65 resets and the first toothed plate 61 and the second toothed plate 62 are in a parallel state, preventing the second toothed plate 62 from being horizontally placed in the drying channel. When the cotton enters from the feed inlet 11, the second toothed plate 62 horizontally placed in the drying channel will block the cotton from entering the drying channel.

[0036] After the gear 63 disengages from the arc-shaped rack 64, the gear 63 drives the second toothed plate 62 to reverse when it reverses. When the gear 63 reverses, it pushes the originally pushed cotton forward, preventing the cotton from accumulating more and more between the second toothed plates 62 at the rear. By repeatedly pushing the cotton forward and backward, all parts of the cotton are evenly dried. At the same time, when the cotton moves, it will enter the inner channel and the outer channel respectively, and the two sides of the cotton can be blown and dried respectively. Even if the turning member 6 does not turn the cotton blocked by the first toothed plate 61 during the turning of the cotton, the two sides of the cotton are dried through the inner and outer channels respectively to ensure the drying effect.

[0037] When the turning member 6 turns the cotton, if the distance between two adjacent turning members 6 is relatively far, the turning member 6 cannot turn over all the cotton between two adjacent first toothed plates 61. By setting the pressing plate 5, the pressing plate 5 pushes the cotton towards the first toothed plate 61 at the rear. When the second toothed plate 62 turns over the cotton, it can turn over all the cotton between the first toothed plates 61.

[0038] A plurality of pressing plates 5 are provided and are respectively connected to the drying cylinder 1 and the support ring 2. A return spring 51 is hinged between the pressing plate 5 and the drying cylinder 1 and the support ring 2; the pressing plate 5 pushes the cotton to move towards the first toothed plate 61 at the rear. When the pressing plate 5 contacts the first toothed plate 61 at the rear, the first toothed plate 61 pushes the pressing plate 5 to rotate, and when the pressing plate 5 passes over the first toothed plate 61, it resets under the action of the return spring 51.

[0039] The length of the first toothed plate 61 is greater than the length of the second toothed plate 62. When the gear 63 disengages from the arc-shaped rack 64, the pressing plate 5 is blocked by the first toothed plate 61, preventing the pressing plate 5 from contacting the second toothed plate 62 and thus affecting the reset of the second toothed plate 62. The gear 63 can pass through below the return spring 51, preventing the return spring 51 from affecting the movement of the gear 63 following the conveyor belt 4.

[0040] In other embodiments of the present invention, an electric telescopic rod is connected to the pressing plate 5. When the electric telescopic rod drives the pressing plate 5 to enter between two adjacent first toothed plates 61, the pressing plate 5 squeezes the cotton, and before the pressing plate 5 contacts the first toothed plate 61 at the rear, the electric telescopic rod drives the pressing plate 5 to move out between the two first toothed plates 61.

[0041] In a preferred embodiment of the present invention, a mesh plate 7 is slidably and elastically arranged up and down at the top of the support ring 2. Protrusions 8 that can contact the first toothed plate 61 are evenly distributed on both the front and rear sides of the mesh plate 7. When the conveyor belt 4 drives the first toothed plate 61 to move and contact the protrusions 8 on the mesh plate 7, the mesh plate 7 vibrates up and down and contacts the cotton. A turning member 6 is arranged at the position of the support ring 2 where the mesh plate 7 is provided. When the turning member 6 turns the cotton, the mesh plate 7 moves up and down and pats the cotton to knock off the impurities in the cotton. At the same time, the air inlet passage 31 blows air downward to assist the impurities in the cotton to fall off. The impurities enter the support ring 2 through the mesh holes of the mesh plate 7 along with the hot air for subsequent treatment.

[0042] Support rods 71 are arranged on the support ring 2. An expansion rod 73 is arranged between the support rods 71 and the mesh plate 7. A spring 72 is sleeved on the outer periphery of the movable end of the expansion rod 73. One end of the spring 72 is connected to the mesh plate 7, and the other end is connected to the fixed end of the expansion rod 73. When the protrusion 8 contacts the first toothed plate 61, the contact between the first toothed plate 61 and the protrusion 8 causes the expansion rod 73 to expand and contract, thereby causing the mesh plate 7 to move up and down.

[0043] In other embodiments of the present invention, an electric push rod is arranged on the mesh plate 7. The electric push rod drives the mesh plate 7 to move up and down, thereby causing the mesh plate 7 to pat the cotton to make the impurities on the cotton fall off.

[0044] The feed inlet 11 extends into the drying cylinder 1. An arc-shaped plate 12 is arranged on the feed inlet 11. The arc-shaped plate 12 extends downward to the inner wall of the drying cylinder 1. When the cotton enters from the feed inlet 11, when the first toothed plate 61 rotates, it brings the cotton onto the conveyor belt 4.

[0045] Specific working principle:

[0046] When drying the cotton, the cotton is put in through the feed inlet 11. The cotton moves with the conveyor belt 4 and successively passes through the inner channel and the outer channel. The two channels can dry the two sides of the cotton respectively to ensure the drying effect. When the conveyor belt 4 moves, it drives the gear 63 to contact the arc-shaped rack 64, thereby causing the second toothed plate 62 to rotate. The second toothed plate 62 rotates to turn the cotton. At the same time, the cotton between two adjacent first toothed plates 61 is pushed by the pressing plate 5 to move toward one side, making the turning of the cotton by the second toothed plate 62 more thorough. When the gear 63 is disengaged from the arc-shaped rack 64, the second toothed plate 62 rotates reversely under the action of the torsion spring 65 and turns the cotton that has been turned backward forward again, realizing uniform drying by turning the cotton. When the cotton moves with the conveyor belt 4 to the top of the support ring 2, while the turning member 6 turns the cotton, the first toothed plate 61 contacts the protrusions 8 on the mesh plate 7 and causes the mesh plate 7 to move up and down. The mesh plate 7 moves up and down and pats on the cotton to separate the impurities in the cotton.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A drying device for cotton processing, comprising a drying cylinder (1) and a feed inlet (11) provided on the drying cylinder (1), characterized in that: It also comprises a support ring (2), a semi-annular air duct (3), a conveyor belt (4), and a turning member (6); the drying cylinder (1), the support ring (2) and the semi-annular air duct (3) are all arranged concentrically; two conveying channels that are connected inside and outside are formed between the support ring (2) and the semi-annular air duct (3), and between the drying cylinder (1) and the support ring (2); a connecting pipe is connected between the semi-annular air duct (3) and the drying cylinder (1), and the air outlets of both face the support ring (2) so as to dry both sides of the cotton and blow impurities in the cotton downwards; the conveyor belt (4) is in a mesh shape and runs in a closed loop along the outer periphery of the semi-annular air duct (3), providing power for the cotton to move along the conveying channel; The turning member (6) comprises a plurality of tooth plates (61) evenly distributed along the outer circumference of the conveyor belt (4) and a tooth plate (62) rotating on the tooth plate (61), wherein the tooth plate (61) and the tooth plate (62) are meshed with each other, and a gear (63) is provided at the end of the rotating shaft of the tooth plate (62). The drying cylinder (1) and the support ring (2) are both provided with a plurality of arc-shaped racks (64) meshed with the gear (63) so that the gear (63) rotates intermittently, thereby the tooth plate (62) turns the cotton, and a torsion spring (65) is provided between the gear (63) and the tooth plate (61).

2. A drying device for cotton processing according to claim 1, characterized in that: A plurality of squeezing plates (5) are provided on the drying cylinder (1) and the support ring (2). When the squeezing plates (5) extend into the conveying channel, they push the cotton between the two tooth plates (61) to one side.

3. A drying device for cotton processing according to claim 2, characterized in that: A plurality of extrusion plates (5) are rotatably arranged on the drying cylinder (1) and the support ring (2), respectively, and a return spring (51) is hingedly connected between the extrusion plates (5), the drying cylinder (1) and the support ring (2).

4. A drying device for cotton processing according to claim 2, characterized in that: A plurality of extrusion plates (5) slide along the radial direction of the drying cylinder (1) and the support ring (2), and an electric telescopic rod is connected to the extrusion plates (5).

5. A drying device for cotton processing according to any one of claims 1 to 4, characterized in that: The length of the tooth plate one (61) is greater than the length of the tooth plate two (62), and when the gear (63) and the arc-shaped rack (64) are out of contact, the extrusion plate (5) and the tooth plate one (61) are in contact.

6. A drying device for cotton processing according to claim 1, characterized in that: A mesh plate (7) is provided on the top of the support ring (2) so as to be movable up and down and repositionable, and protrusions (8) capable of contacting tooth plate 1 (61) are evenly distributed on the front and rear sides of the mesh plate (7).

7. A drying device for cotton processing according to claim 6, characterized in that: A support rod (71) is provided on the support ring (2), a telescopic rod (73) is provided between the support rod (71) and the mesh plate (7), a spring (72) is sleeved on the outer periphery of the movable end of the telescopic rod (73), one end of the spring (72) is connected to the mesh plate (7), and the other end is connected to the fixed end of the telescopic rod (73).

8. A drying device for cotton processing according to claim 1, characterized in that: Arc plates (12) are arranged in the conveying channels near both ends of the conveyor belt (4), and the arc plates (12) near the feed port (11) are connected to the feed port (11).

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