阅读说明：本技术 机采棉清理工艺及机采棉加工生产线 (Machine-harvested cotton cleaning process and machine-harvested cotton processing production line ) 是由 姚所幸 倪国陵 翟鸿鹄 苗才华 赵明 张禄坤 张剑飞 张亚欢 于鹰 于 2020-05-21 设计创作，主要内容包括：本发明提供了一种机采棉清理工艺及机采棉加工生产线,属于机采棉加工领域。机采棉清理工艺包括：烘干机采棉,得到一次干燥的机采棉；清理一次干燥的机采棉中的异性纤维,得到除纤后的机采棉；清理除纤后的机采棉中的颗粒杂质,得到除杂后的机采棉；烘干除杂后的机采棉,得到二次干燥的机采棉；采用静电吸附的方式清理二次干燥的机采棉中的地膜,得到除膜后的机采棉；将除膜后的机采棉轧花,得到皮棉；对皮棉进行开松、清理,得到干净的皮棉。机采棉加工生产线采用上述机采棉清理工艺。本发明的机采棉清理工艺及机采棉加工生产线对机采棉清理的更加彻底,减少了棉纤维的损失,降低对棉纤维的损伤。(The invention provides a machine-harvested cotton cleaning process and a machine-harvested cotton processing production line, and belongs to the field of machine-harvested cotton processing. The machine-harvested cotton cleaning process comprises the following steps: picking cotton by a dryer to obtain primary dried machine-picked cotton; cleaning foreign fibers in the primary dried machine-harvested cotton to obtain the machine-harvested cotton after fiber removal; cleaning particle impurities in the mechanically harvested cotton subjected to fiber removal to obtain mechanically harvested cotton subjected to impurity removal; drying the machine-harvested cotton after impurity removal to obtain secondary dried machine-harvested cotton; cleaning a mulching film in the secondary dried machine-harvested cotton in an electrostatic adsorption mode to obtain machine-harvested cotton after film removal; cotton ginning is carried out on the machine-harvested cotton after the film is removed, and ginned cotton is obtained; opening and cleaning the ginned cotton to obtain clean ginned cotton. The machine-harvested cotton processing production line adopts the machine-harvested cotton cleaning process. The machine-harvested cotton cleaning process and the machine-harvested cotton processing production line of the invention can clean the machine-harvested cotton more thoroughly, reduce the loss of cotton fibers and reduce the damage to the cotton fibers.)

1. Machine-harvested cotton cleaning process, characterized by comprising:

picking cotton by a dryer to obtain primary dried machine-picked cotton;

cleaning foreign fibers in the primary dried machine-harvested cotton to obtain the machine-harvested cotton after fiber removal;

cleaning particle impurities in the mechanically harvested cotton subjected to fiber removal to obtain mechanically harvested cotton subjected to impurity removal;

drying the machine-harvested cotton after impurity removal to obtain secondary dried machine-harvested cotton;

cleaning a mulching film in the secondary dried machine-harvested cotton in an electrostatic adsorption mode to obtain machine-harvested cotton after film removal;

cotton ginning is carried out on the machine-harvested cotton after the film is removed, and ginned cotton is obtained;

opening and cleaning the ginned cotton to obtain clean ginned cotton.

2. The machine-harvested cotton cleaning process of claim 1, wherein the cleaning of foreign fibers in the primary dried machine-harvested cotton comprises:

cleaning foreign fibers in the dried machine-harvested cotton by using a winding roller;

the foreign fiber with specific gravity smaller than that of the machine-harvested cotton is separated from the machine-harvested cotton by adopting a winnowing mode.

3. The machine-harvested cotton cleaning process of claim 1, wherein the cleaning of the fiber-removed particulate impurities in the machine-harvested cotton comprises sequentially:

cotton stalks and cotton bolls in cotton picking are picked by a licker-in cleaning machine;

fine particles with larger specific gravity in cotton picking are filtered and cleaned by the impurity removing net.

4. The machine harvested cotton cleaning process of claim 1, wherein the opening and cleaning of ginned cotton comprises:

opening the lint in a striking mode;

and cleaning the lint by using a sawtooth lint cleaning machine.

5. Machine adopts cotton processing lines, its characterized in that includes:

a primary drying procedure, which is used for picking cotton by a dryer to obtain primary dried machine-picked cotton;

a fiber cleaning process for cleaning foreign fibers in the primary dried machine-picked cotton to obtain the machine-picked cotton after fiber removal;

a particle impurity cleaning process for cleaning particle impurities in the mechanically harvested cotton after fiber removal to obtain the mechanically harvested cotton after impurity removal;

a secondary drying procedure, which is used for drying the machine-harvested cotton after impurity removal to obtain secondary dried machine-harvested cotton;

an electrostatic adsorption process, which is used for cleaning the mulching film in the secondary dried machine-harvested cotton in an electrostatic adsorption mode to obtain the machine-harvested cotton after the film is removed;

an embossing step for embossing the machine-harvested cotton after the film removal to obtain lint; and

and the lint opening and cleaning process is used for performing opening and cleaning on the lint to obtain clean lint.

6. The machine-harvested cotton processing line of claim 5, wherein the fiber cleaning process comprises a filament triple-filament cleaner and an air-separation foreign fiber cleaner connected in series.

7. The machine-harvested cotton processing line according to claim 6, wherein the three-filament cleaning machine comprises at least two switchable subchannels, at least one of the subchannels being provided with a winding roller for winding a filament, at least one of the subchannels being adapted to allow machine-harvested cotton to pass directly therethrough.

8. A machine-harvested cotton processing line as claimed in claim 5, wherein the particulate impurity removal process comprises a cotton boll hull remover with a licker-in and a fine impurity removal device with an impurity removal net connected in series.

9. The machine-harvested cotton processing production line according to claim 5, wherein the secondary drying process comprises a drying and cleaning all-in-one machine, the drying and cleaning all-in-one machine comprises a drying channel which is bent back and forth, a slag discharge port is formed in the outer side of the bent part of the drying channel, a fluctuation plate is arranged on the inner wall of the drying channel, and the fluctuation plate is located at the entrance of the bent part of the drying channel.

10. The machine-harvested cotton processing line of claim 5, wherein the lint opening and cleaning process comprises an opening and cleaning machine and a saw-toothed lint cleaning machine connected in series.

Technical Field

The invention belongs to the technical field of machine-harvested cotton processing, and particularly relates to a machine-harvested cotton cleaning process and a machine-harvested cotton processing production line.

Background

In recent years, the machine-harvested cotton in China is rapidly developed, but due to the fact that defoliant technology and field management are weak, the impurity content of the machine-harvested cotton is generally about 8% -15%, the moisture regain of the machine-harvested cotton is generally over 12%, and due to the fact that the machine-harvested cotton contains a large amount of foreign fibers, mulching films, cotton stalks, cotton bolls and other particle impurities due to unique planting and picking modes in China, the factors bring great difficulty to cleaning and processing of the machine-harvested cotton.

In the existing mechanical cotton picking processing process, the mechanical cotton picking is not thoroughly cleaned, and partial foreign fibers, mulching films and particle impurities still remain. And in the clearance in-process, cotton fiber is cleared up along with foreign fiber and particle impurity easily, leads to cotton fiber's loss more, and the clearance in-process damages cotton fiber easily moreover.

Disclosure of Invention

The invention aims to provide a machine-harvested cotton cleaning process and a machine-harvested cotton processing production line, and aims to solve the technical problems that in the machine-harvested cotton processing process in the prior art, machine-harvested cotton is not thoroughly cleaned, cotton fibers are more in loss and easy to damage.

In order to achieve the purpose, the invention adopts the technical scheme that a machine-harvested cotton cleaning process is provided, and comprises the following steps:

picking cotton by a dryer to obtain primary dried machine-picked cotton;

cleaning foreign fibers in the primary dried machine-harvested cotton to obtain the machine-harvested cotton after fiber removal;

cleaning particle impurities in the mechanically harvested cotton subjected to fiber removal to obtain mechanically harvested cotton subjected to impurity removal;

drying the machine-harvested cotton after impurity removal to obtain secondary dried machine-harvested cotton;

cleaning a mulching film in the secondary dried machine-harvested cotton in an electrostatic adsorption mode to obtain machine-harvested cotton after film removal;

cotton ginning is carried out on the machine-harvested cotton after the film is removed, and ginned cotton is obtained;

opening and cleaning the ginned cotton to obtain clean ginned cotton.

As another embodiment of the present application, the cleaning of foreign fibers in primary dried machine-harvested cotton includes:

cleaning foreign fibers in the dried machine-harvested cotton by using a winding roller;

the foreign fiber with specific gravity smaller than that of the machine-harvested cotton is separated from the machine-harvested cotton by adopting a winnowing mode.

As another embodiment of the present application, the cleaning of particle impurities in the mechanically harvested cotton after fiber removal includes sequentially performing:

cotton stalks and cotton bolls in cotton picking are picked by a licker-in cleaning machine;

fine particles with larger specific gravity in cotton picking are filtered and cleaned by the impurity removing net.

As another embodiment of the present application, the opening and cleaning of lint comprises:

opening the lint in a striking mode;

and cleaning the lint by using a sawtooth lint cleaning machine.

The machine-harvested cotton cleaning process provided by the embodiment of the invention has the beneficial effects that: compared with the prior art, the machine-harvested cotton cleaning process has the advantages that the dryer is used for harvesting cotton to obtain the machine-harvested cotton which is dried for the first time, foreign fibers in the machine-harvested cotton which is dried for the first time can be better cleaned, particle impurities in the machine-harvested cotton after the fibers are removed can be better cleaned, the loss of cotton fibers is reduced, and the damage to the cotton fibers is reduced. The machine that the edulcoration was dried adopts cotton, obtains the machine that the secondary is dry and adopts cotton, and the plastic film in the machine that the secondary is dry adopted cotton of mode clearance that adopts static adsorption that can be better reduces the residual of plastic film, reduces cotton fiber's loss, reduces the damage to cotton fiber, also can make subsequent machine that will remove after the film adopt cotton ginning and open, clear up lint, reduces the damage to cotton fiber. And finally, opening and cleaning the ginned cotton, so that the cleaning is more thorough, and the damage to cotton fibers is reduced. Through the method, the machine-harvested cotton is cleaned more thoroughly, the loss of cotton fibers is reduced, and the damage to the cotton fibers is reduced.

Another technical solution adopted by the present invention is to provide a machine-harvested cotton processing production line, comprising:

a primary drying procedure, which is used for picking cotton by a dryer to obtain primary dried machine-picked cotton;

a fiber cleaning process for cleaning foreign fibers in the primary dried machine-picked cotton to obtain the machine-picked cotton after fiber removal;

a particle impurity cleaning process for cleaning particle impurities in the mechanically harvested cotton after fiber removal to obtain the mechanically harvested cotton after impurity removal;

a secondary drying procedure, which is used for drying the machine-harvested cotton after impurity removal to obtain secondary dried machine-harvested cotton;

an electrostatic adsorption process, which is used for cleaning the mulching film in the secondary dried machine-harvested cotton in an electrostatic adsorption mode to obtain the machine-harvested cotton after the film is removed;

an embossing step for embossing the machine-harvested cotton after the film removal to obtain lint; and

and the lint opening and cleaning process is used for performing opening and cleaning on the lint to obtain clean lint.

As another embodiment of the application, the fiber cleaning process comprises a long three-filament cleaner and an air separation type foreign fiber cleaner which are connected in sequence.

As another embodiment of the application, the filament three-filament cleaning machine comprises at least two switchable branch channels, a winding roller for winding the filament is arranged in at least one branch channel, and at least one branch channel is used for enabling the machine-harvested cotton to directly pass through.

As another embodiment of the application, the particle impurity cleaning process comprises a cotton stalk boll shell cleaner provided with a licker-in and a fine impurity cleaning device provided with an impurity removing net which are connected in sequence.

As another embodiment of this application, the secondary stoving process includes the stoving clearance all-in-one, the stoving clearance all-in-one is including the reciprocal stoving passageway of buckling, the outside that the stoving passageway buckles is equipped with the slag notch, the inner wall of stoving passageway is equipped with the fluctuation board, the fluctuation board is located the entering department that the stoving passageway buckles.

As another embodiment of the application, the lint opening and cleaning process comprises an opening cleaner and a sawtooth type lint cleaner which are connected in sequence.

The machine-harvested cotton processing production line provided by the embodiment of the invention has the beneficial effects that: compared with the prior art, the mechanical cotton picking processing production line provided by the embodiment of the invention adopts the mechanical cotton picking cleaning process, so that the mechanical cotton picking is cleaned more thoroughly, the loss of cotton fibers is reduced, and the damage to the cotton fibers is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a flow chart of a machine-harvested cotton cleaning process provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a machine-harvested cotton processing line according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of the filament triplex trimmer of FIG. 2;

fig. 4 is a schematic structural diagram of the secondary drying process in fig. 2.

Wherein, in the figures, the respective reference numerals:

1-primary drying process; 2-fiber cleaning process; 21-filament three-filament cleaning machine; 211-channel division; 212-a separator; 213-a commutation plate; 214-a wind-up roll; 22-air separation type foreign fiber cleaning machine; 3-particle impurity cleaning process; 31-cotton boll shell remover; 32-a fine impurity cleaning device; 4-secondary drying process; 41-drying channel; 42-a slag discharge port; 43-a heave plate; 5-electrostatic adsorption process; 6-cotton ginning process; 7-lint cotton opening and cleaning process; 71-an opening cleaner; 72-saw tooth type lint cleaning machine.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, a machine-harvested cotton cleaning process provided by an embodiment of the present invention will now be described. A machine-harvested cotton cleaning process, comprising:

step S100, picking cotton by a dryer to obtain primary dried machine picked cotton, and specifically, the primary dried machine picked cotton can be picked by the existing machine picked cotton drying equipment;

step S200, cleaning foreign fibers in the machine-harvested cotton which is dried for the first time to obtain the machine-harvested cotton after fiber removal, specifically, cleaning three fibers in the machine-harvested cotton by adopting the existing machine-harvested cotton three-fiber cleaning equipment, wherein the three fibers are commonly known as foreign fibers mixed in cotton by people in the cotton field;

step S300, cleaning particle impurities in the mechanically harvested cotton after fiber removal to obtain mechanically harvested cotton after impurity removal, wherein the cleaning can be carried out by using the existing mechanically harvested cotton particle impurity cleaning equipment, such as a cotton stalk boll hull cleaning machine 31 with a licker-in, a fine impurity cleaning device 32 with an impurity removal net and the like;

s400, drying the impurity-removed machine-harvested cotton to obtain secondary-dried machine-harvested cotton, wherein the secondary-dried machine-harvested cotton can be specifically processed by adopting the conventional machine-harvested cotton drying equipment;

step S500, cleaning the mulching film in the secondary dried machine-harvested cotton by adopting an electrostatic adsorption mode to obtain the machine-harvested cotton after membrane removal, and specifically, adopting the existing electrostatic adsorption equipment to carry out;

step S600, cotton ginning of the machine-harvested cotton after the film removal is carried out to obtain ginned cotton, and specifically, the ginned cotton ginning can be carried out by adopting the existing ginning equipment;

step S700, opening and cleaning the lint to obtain clean lint, and specifically, the lint can be cleaned by adopting the existing opening and cleaning equipment.

Compared with the prior art, the machine-harvested cotton cleaning process has the advantages that the dryer is used for harvesting cotton to obtain the machine-harvested cotton which is dried for the first time, foreign fibers in the machine-harvested cotton which is dried for the first time can be better cleaned, particle impurities in the machine-harvested cotton after the fibers are removed can be better cleaned, the loss of cotton fibers is reduced, and the damage to the cotton fibers is reduced. The machine that the edulcoration was dried adopts cotton, obtains the machine that the secondary is dry and adopts cotton, and the plastic film in the machine that the secondary is dry adopted cotton of mode clearance that adopts static adsorption that can be better reduces the residual of plastic film, reduces cotton fiber's loss, reduces the damage to cotton fiber, also can make subsequent machine that will remove after the film adopt cotton ginning and open, clear up lint, reduces the damage to cotton fiber. And finally, opening and cleaning the ginned cotton, so that the cleaning is more thorough, and the damage to cotton fibers is reduced. Through the method, the machine-harvested cotton is cleaned more thoroughly, the loss of cotton fibers is reduced, and the damage to the cotton fibers is reduced.

The machine-harvested cotton cleaning process can be more specifically implemented by referring to the machine-harvested cotton processing production line provided by the embodiment of the invention.

Referring to fig. 1, as an embodiment of the machine-harvested cotton cleaning process provided by the present invention, the process for cleaning foreign fibers in machine-harvested cotton, which is dried at one time, comprises:

cleaning foreign fibers from the dried machine-harvested cotton using wind-up roll 214;

the foreign fiber with specific gravity smaller than that of the machine-harvested cotton is separated from the machine-harvested cotton by adopting a winnowing mode.

In this embodiment, the length and the fineness of the main winding machine of the winding roller 214 are greater than those of the foreign fibers picked by the machine, and the winding roller 214 is used for cleaning the foreign fibers picked by the machine, so that the efficiency is higher, and the damage to the cotton fibers can be reduced. Foreign fibers with smaller specific gravity are cleaned in a winnowing mode, and the foreign fibers with smaller length and fineness in the cotton picked by the machine can be cleaned as far as possible. The cleaning machine of this embodiment can furthest adopts various foreign fiber in the cotton, and is more thorough to foreign fiber's clearance.

Referring to fig. 1, as a specific embodiment of the machine-harvested cotton cleaning process provided by the present invention, the cleaning of the particle impurities in the machine-harvested cotton after fiber removal includes sequentially performing:

cotton stalks and cotton bolls in cotton picking are picked by a licker-in cleaning machine;

fine particles with larger specific gravity in cotton picking are filtered and cleaned by the impurity removing net.

In this embodiment, utilize cotton stalk, the cotton-boll of the corresponding descaling machine of licker-in to adopt cotton, utilize the miscellaneous net of row to filter other tiny granules of clearance, can the descaling machine various common granule impurity in adopting cotton to clearance to granule impurity is more thorough.

Referring to fig. 1, as a specific embodiment of the machine-harvested cotton cleaning process provided by the present invention, the process of opening and cleaning ginned cotton includes:

opening the lint in a striking mode;

and cleaning the lint by using a sawtooth lint cleaning machine.

In this embodiment, the mode of striking is opened the ginned cotton and can be increased the loose nature of ginned cotton, reduces the damage to cotton fiber length.

Referring to fig. 2 to 4, an embodiment of the present invention further provides a machine-harvested cotton processing line, where the machine-harvested cotton processing line includes: a primary drying procedure 1, a fiber cleaning procedure 2, a particle impurity cleaning procedure 3, a secondary drying procedure 4, an electrostatic adsorption procedure 5, a cotton ginning procedure 6 and a lint opening and cleaning procedure 7.

The primary drying procedure 1 is used for cotton picking by a dryer to obtain primary dried machine picked cotton. The fiber cleaning process 2 is used for cleaning foreign fibers in the machine-harvested cotton which is dried at one time to obtain the machine-harvested cotton after fiber removal. And the particle impurity cleaning process 3 is used for cleaning particle impurities in the mechanically harvested cotton after fiber removal to obtain the mechanically harvested cotton after impurity removal. And the secondary drying process 4 is used for drying the impurity-removed mechanically harvested cotton to obtain secondary dried mechanically harvested cotton. And the electrostatic adsorption process 5 is used for cleaning the mulching film in the secondary-drying machine-harvested cotton in an electrostatic adsorption mode to obtain the machine-harvested cotton after the film is removed. And the cotton ginning process 6 is used for ginning the machine-harvested cotton after the film is removed to obtain the ginned cotton. The lint opening and cleaning process 7 is used for performing opening and cleaning on the lint to obtain clean lint.

The primary drying procedure 1 is that the dryer picks cotton, so that the fiber cleaning procedure 2 and the particle impurity cleaning procedure 3 can better clean foreign fibers and particle impurities in the primary dried machine picked cotton, reduce the loss of cotton fibers and reduce the damage to the cotton fibers. The machine-harvested cotton after the secondary drying process 4 is dried and decontaminated enables the electrostatic adsorption process 5 to better clean the mulching film in the machine-harvested cotton in the secondary drying process in an electrostatic adsorption mode, reduces the residual mulching film, reduces the loss of cotton fibers, reduces the damage to the cotton fibers, and also enables the subsequent cotton ginning process 6 and the lint cotton opening and cleaning process 7 to reduce the damage to the cotton fibers. And finally, the ginning process 6 and the ginned cotton opening and cleaning process 7 open and clean ginned cotton, so that the cleaning is more thorough, and the damage to cotton fibers is reduced.

Compared with the prior art, the processing production line for the mechanically harvested cotton has the advantages that the mechanically harvested cotton is cleaned more thoroughly, the loss of cotton fibers is reduced, and the damage to the cotton fibers is reduced.

In this embodiment, the primary drying step 1, the fiber cleaning step 2, the particle impurity cleaning step 3, the secondary drying step 4, the electrostatic adsorption step 5, the cotton ginning step 6, and the lint opening and cleaning step 7 may all adopt existing devices. The electrostatic adsorption process 5 adopts an electrostatic adsorption mode to clean mulching films in the secondary drying machine cotton picking, and the equipment can be selected from various models in the market. Other process settings may be found in other embodiments. Specifically, in the electrostatic adsorption process 5, before the equipment for performing electrostatic adsorption, equipment such as an inclined seed cotton cleaner and a stacked seed cotton cleaner can be arranged, so that impurities in cotton picked by the further cleaner are prevented from affecting the electrostatic adsorption effect.

Referring to fig. 2 and 3, the embodiment of the present invention further provides a machine-harvested cotton processing line, and the fiber cleaning process 2 includes a long three-filament cleaner 21 and a wind-selecting foreign fiber cleaner 22 connected in sequence.

The three-filament is a common name of people in the cotton world for foreign fibers mixed in cotton. The foreign fiber includes chemical fiber, silk, hemp, hair, plastic rope and other non-cotton fiber. In this embodiment, the long three-filament cleaner 21 is a device for cleaning foreign fibers in cotton picked by the cleaner, and various models of the device can be selected on the market.

The air separation type foreign fiber cleaning machine 22 adopts an air separation mode to separate foreign fibers with specific gravity smaller than that of machine-picked cotton from the machine-picked cotton, and the equipment has various models which can be selected in the market. Specifically, the winnowing foreign fiber cleaner 22 has a main body with an impurity collecting chamber at the top, an inlet at the side and an outlet at the bottom. The machine-picked cotton is sent into the main body from the inlet by utilizing the fan to form airflow from bottom to top, the airflows blow the foreign fibers with light specific gravity to the upper part and are collected by the impurity collecting chamber at the upper part, and the machine-picked cotton with large specific gravity falls down and is discharged from the outlet at the lower part. The air quantity of the winnowing type foreign fiber cleaning machine 22 is adjustable and can be adjusted according to the difference of impurity content and water content of cotton picked by the machine.

Referring to fig. 3, in the embodiment of the present invention, a machine-harvested cotton processing line is further provided, in which the filament three-filament cleaner 21 includes at least two switchable sub-channels 211, at least one of the sub-channels 211 is provided with a winding roller 214 for winding a filament, and at least one of the sub-channels 211 is used for allowing machine-harvested cotton to directly pass through. Different sub-channels 211 can be switched according to whether the machine-harvested cotton contains three filaments or not, so that the machine-harvested cotton directly passes through or is cleaned by the winding roller 214. When no three long threads are contained in the machine-harvested cotton, the striking of the winding roller 214 to the cotton-harvested cotton can be reduced, and the damage to cotton fibers is avoided.

In this embodiment, a long channel is provided on the filament three-filament cleaning machine 21, the two ends of the channel are respectively an inlet and an outlet, the channel is divided into a plurality of sub-channels 211 by arranging a partition plate 212 extending along the inlet and outlet directions in the channel, a rotating direction-changing plate 213 is provided at one end of each partition plate 212 facing the inlet, and the end of any sub-channel 211 is communicated with the inlet by rotating the direction-changing plate 213.

Specifically, two parallel opposing baffles 212 may be provided within the channel, dividing the channel into three sub-channels 211. The two ends of each partition 212 are respectively provided with a rotating direction-changing plate 213, and the two ends of any one of the sub-channels 211 are respectively communicated with the inlet and the outlet by rotating the direction-changing plates 213. The winding rollers 214 are provided in the two sub-passages 211 at both sides, and the winding rollers 214 are not provided in the middle sub-passage 211. When the machine-harvested cotton does not contain the long three-filament yarns, the two ends of the middle sub-channel 211 are respectively communicated with the inlet and the outlet by rotating the reversing plate 213, so that the machine-harvested cotton directly passes through the middle sub-channel 211. When the machine-harvested cotton contains the three long yarns, the two ends of the branch channel 211 on one side are respectively communicated with the inlet and the outlet by rotating the reversing plate 213, so that the machine-harvested cotton enters the branch channel 211 from the inlet, and the winding roller 214 winds the three long yarns in the process that the machine-harvested cotton passes through the branch channel 211, so that the three long yarns are separated from the machine-harvested cotton. Observing the winding condition of the three long threads on the winding roller 214 in the branch channel 211, when the three long threads on the winding roller 214 in the branch channel 211 are wound to a certain degree, rotating the reversing plate 213 to communicate the two ends of the branch channel 211 on the other side with the inlet and the outlet respectively, so that the machine-harvested cotton enters the branch channel 211 on the other side from the inlet for cleaning, and at the moment, the three long threads on the winding roller 214 in the branch channel 211 can be cleaned.

Referring to fig. 2, the embodiment of the present invention further provides a machine-harvested cotton processing line, and the particle impurity cleaning process 3 includes a cotton stalk boll shell remover 31 with a licker-in and a fine impurity cleaning device 32 with a impurity removing net, which are connected in sequence.

In this embodiment, the cotton stalk and boll hull remover 31 is a device for picking cotton stalks and boll hulls in cotton by a licker-in remover, and the device has various models which can be selected on the market. The fine impurity cleaning device 32 is a device for filtering fine particles with large specific gravity in cotton picked by the cleaning machine through a impurity removing net, and the device has various models which can be selected on the market.

Specifically, the cotton boll shell remover 31 can adopt a licker-in with the diameter of 800-1200mm, so that impurity removal for multiple times by one-time hooking and pulling is ensured, the impurity removal area is enlarged, the impurity removal efficiency is improved, and the damage to cotton fibers is reduced. The dual-channel design can be adopted, and whether the cotton stalk boll shell is removed or not can be selected according to the content of the cotton stalks and the boll shells in the cotton picked by the processing machine.

Specifically, the fine impurity cleaning device 32 may be an inclined impurity removing net, the machine-harvested cotton automatically slides down from the inclined impurity removing net, and in the process, fine particles with large specific gravity fall down from the gap of the impurity removing net.

Referring to fig. 4, an embodiment of the present invention further provides a machine-harvested cotton processing production line, where the secondary drying process 4 includes a drying and cleaning all-in-one machine, the drying and cleaning all-in-one machine includes a drying channel 41 bent back and forth, a slag discharge opening 42 is disposed on an outer side of a bent portion of the drying channel 41, an undulation plate 43 is disposed on an inner wall of the drying channel 41, and the undulation plate 43 is located at an entrance of the bent portion of the drying channel 41. And the drying and cleaning all-in-one machine is used for further cleaning while drying the mechanically harvested cotton.

In this embodiment, the machine-harvested cotton is blown into the drying channel 41 along with hot air, and the machine-harvested cotton is conveyed in the drying channel 41 which is bent back and forth, and is sufficiently mixed with the hot air to be dried. At the bent part of the drying channel 41, impurities in the machine-harvested cotton are discharged from the slag discharge port 42 under the action of centrifugal force.

Specifically, drying and cleaning all-in-one includes the casing, and drying channel 41 sets up in the casing, and drying channel 41 extends in the upper and lower direction to reciprocal the buckling in the horizontal direction. When in use, the machine-harvested cotton is fed in from the upper end of the drying channel 41 along with hot air, and impurities discharged from the slag discharge port 42 are collected in the shell.

Referring to fig. 2, the embodiment of the present invention further provides a machine-harvested cotton processing line, a lint opening and cleaning process 7, which includes an opening and cleaning machine 71 and a saw-toothed lint cleaning machine 72 connected in sequence. The opening and cleaning machine 71 can clean the ginned cotton, and can also increase the loosening property of the ginned cotton and reduce the damage to the length of the cotton fiber.

In this embodiment, the opening and cleaning machine 71 is a device for opening the machine-harvested cotton by striking and opening principles and making impurities fall off, and the device has various models available on the market. The zigzag lint picker 72 may be a commercially available device, and specifically, the wide-range double-speed zigzag lint picker 72 may be selected. The machine-harvested cotton processing line may also include a subsequent lint baler.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.