Seed cotton branch and leaf residue removing equipment

Abstract

The utility model relates to the technical field of seed cotton processing equipment, in particular to seed cotton branch and leaf residue removing equipment which comprises a primary impurity removing mechanism, a secondary impurity removing mechanism and an impurity cleaning mechanism, the impurity cleaning mechanism is arranged between the primary impurity removing mechanism and the secondary impurity removing mechanism, seed cotton is primarily processed in the primary impurity removing mechanism, and the secondary impurity removing mechanism is arranged in the secondary impurity removing mechanism. The seed cotton enters the primary impurity removing mechanism to remove branch and leaf residues easy to treat, then the seed cotton enters the impurity removing mechanism, the impurity removing mechanism combs the seed cotton and removes impurities which are not treated by the primary impurity removing mechanism, then the secondary impurity removing mechanism removes impurities again on the cotton combed and purified by the impurity removing mechanism, and at the moment, stubborn impurities which are carried by the seed cotton and are difficult to remove can be removed. According to the seed cotton impurity removing device, through the reasonable structure, the impurity removing effect on seed cotton is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seed cotton processing equipment, in particular to a device for removing the residues of seed cotton branches and leaves. Background Art

[0002] The harvested seed cotton contains a large amount of cotton plant branches and leaves, which need to be purified by a cotton purifier. The structural design of the existing cotton purifier is relatively complex, and the purification and transportation effects of the seed cotton still have room for further improvement. In view of this, a new structure with a reasonable structure and good purification effect is now provided to achieve the purification of the seed cotton. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a cotton seed branch and leaf residue removal device, which can perform multiple impurity removal treatments on the cotton seed to achieve a better impurity removal effect, and the device structure design is more reasonable.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a seed cotton branch and leaf residue removal device, including a primary cleaning mechanism, a secondary cleaning mechanism and a cleaning mechanism, the primary cleaning mechanism includes a primary cleaning chamber and a primary cleaning component, at least one primary cleaning component is arranged in the primary cleaning chamber, the primary cleaning chamber is provided with a primary cleaning cotton inlet, a primary cleaning cotton outlet and a primary cleaning cotton discharge outlet, the secondary cleaning mechanism includes a secondary cleaning chamber and a secondary cleaning component, at least one secondary cleaning component is arranged in the secondary cleaning chamber, and the secondary cleaning chamber is provided with a secondary cleaning cotton inlet , a secondary impurity cleaning outlet and a secondary impurity cleaning discharge outlet; the impurity cleaning mechanism includes an impurity cleaning chamber and an impurity cleaning component. The impurity cleaning chamber is arranged between the primary impurity cleaning chamber and the secondary impurity cleaning chamber. The impurity cleaning chamber is provided with an impurity cleaning inlet, an impurity cleaning outlet and an impurity cleaning discharge outlet. The impurity cleaning inlet is located below the primary impurity cleaning outlet and communicates with the primary impurity cleaning outlet. The impurity cleaning outlet is located above the secondary impurity cleaning inlet and communicates with the secondary impurity cleaning inlet. The impurity cleaning component is arranged in the impurity cleaning chamber. The impurity cleaning component is arranged above the impurity cleaning discharge outlet and sends the seed cotton cleaned by the primary impurity cleaning component to the secondary impurity cleaning chamber.

[0005] The first-level cleaning mechanism performs preliminary processing on the seed cotton to remove easily cleaned debris such as branches and leaves. Then the cotton cleaning mechanism processes the seed cotton again to remove some of the debris contained therein and combs the cotton. Then the second-level cleaning mechanism processes the combed cotton to fully remove the debris that has not been processed.

[0006] As an optional scheme, a cotton passing chamber is provided in the cleaning chamber, and the cotton passing chamber is provided with a cotton passing inlet and a cotton passing outlet, the cotton passing outlet is communicated with the cleaning cotton outlet, and the cotton passing inlet is communicated with the inside of the cleaning chamber; the cleaning assembly comprises an upper cleaning roller, a lower cleaning roller and a cleaning brush, the upper cleaning roller is arranged above the lower cleaning roller and located at the cleaning cotton inlet, the cleaning brush is arranged on the side wall of the cleaning chamber, a cotton passing channel I is formed between the combing part of the cleaning brush and the cotton feeding side of the upper cleaning roller, and the cotton passing channel I is located above the cotton passing inlet, the lower cleaning roller is arranged above the cleaning outlet, a cotton passing channel II is formed between the upper cleaning roller and the lower cleaning roller, and the cotton passing channel II is located at the cotton passing inlet of the cotton passing chamber, and a cotton picking roller is arranged in the cotton passing chamber, the cotton picking roller rotates relative to the cotton passing chamber and picks the seed cotton at the cotton passing inlet into the secondary cleaning chamber.

[0007] As an optional solution, at least one cotton picking piece is arranged on the cotton picking roller in the circumferential direction. Each cotton picking piece rotates with the cotton picking roller and moves between the position outside the cavity and the position inside the cavity. When the cotton picking piece is in the position outside the cavity, it extends through the cotton entrance and rotates with the cotton picking roller to contact and cooperate with the outer end surfaces of the two clean and impurity rollers in turn.

[0008] As an optional solution, an upper guide plate and a lower guide plate are provided in the clean impurity chamber, the upper guide plate is connected to the side wall of the clean impurity chamber and is located above the clean impurity outlet, the lower guide plate is located at the clean impurity outlet, the lower end surface of the upper guide plate and the upper end surface of the lower guide plate are both arc-shaped surfaces, and the space defined by the lower end surface of the upper guide plate and the upper end surface of the lower guide plate in the clean impurity chamber is the cotton passing cavity.

[0009] As an optional solution, both the first-level debris cleaning component and the second-level debris cleaning component include a debris cleaning conveying roller and debris cleaning spikes. The debris cleaning conveying roller is installed in the first-level debris cleaning cavity or the second-level debris cleaning cavity and rotates relative to the installation position. The debris cleaning conveying roller is provided with debris cleaning spikes on its outer circumferential surface.

[0010] As an optional solution, a first-level cleaning screen is provided in the first-level cleaning chamber below each first-level cleaning component;

[0011] and / or

[0012] A secondary debris cleaning screen is arranged below each secondary debris cleaning component in the secondary debris cleaning chamber.

[0013] As an optional solution, a slag discharge mechanism is provided below the primary debris removal mechanism, the secondary debris removal mechanism and the debris cleaning mechanism.

[0014] As an optional solution, the bottom end of the secondary cleaning chamber is open and forms a secondary cleaning and discharge port, and the secondary cleaning mechanism and the cleaning mechanism share a slag discharge mechanism. The secondary cleaning mechanism and the cleaning mechanism share a slag discharge mechanism, which is conducive to streamlining the equipment structure and reducing equipment costs, while the primary cleaning mechanism uses a separate slag discharge mechanism, which is conducive to recovering the cotton carried by the debris.

[0015] As an optional solution, the slag discharge mechanism is an auger conveyor.

[0016] As an optional solution, it also includes a frame and a traction mechanism. The first-level debris cleaning mechanism, the second-level debris cleaning mechanism, the debris cleaning mechanism and the slag discharge mechanisms are all arranged on the frame. A connecting turntable is arranged at the bottom of the frame. The traction mechanism is connected to the connecting turntable and rotates relative to the frame.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the seed cotton branch and leaf residue removal device of the utility model can fully remove branches and leaves and other debris in the seed cotton through the working modes of primary cleaning, cleaning and secondary cleaning. The primary cleaning mainly removes the branch and leaf residues that are easy to handle, and the cleaning mainly removes the debris that has not been removed in the primary cleaning, and combs the cotton. The secondary cleaning removes the debris from the combed cotton, and at this time, the stubborn debris that is difficult to remove carried by the seed cotton can be removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the cotton seed branch and leaf residue removal device;

[0020] Figure 2 It is a schematic diagram of the side structure of the cotton seed branch and leaf residue removal device;

[0021] Figure 3 It is a schematic diagram of the internal structure of the primary debris removal mechanism, the debris cleaning mechanism and the secondary debris removal mechanism;

[0022] In the figure: 1. primary debris cleaning mechanism, 11. primary debris cleaning chamber, 12. primary debris cleaning assembly, 13. primary debris cleaning screen, 2. debris cleaning mechanism, 21. debris cleaning chamber, 22. cotton passing chamber, 23. upper debris cleaning licker-in roller, 24. lower debris cleaning licker-in roller, 25. cotton cleaning brush, 26. cotton removing roller, 3. secondary debris cleaning mechanism, 31. secondary debris cleaning chamber, 32. secondary debris cleaning assembly, 33. secondary debris cleaning screen, 4. slag discharge mechanism, 5. frame, 6. traction mechanism. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment: A device for removing the residual cotton branches and leaves, please refer to Figure 1-Figure 3 , including a primary impurity cleaning mechanism 1, a secondary impurity cleaning mechanism 3 and a cleaning mechanism 2. The seed cotton needs to pass through the primary impurity cleaning mechanism 1, the cleaning mechanism 2 and the secondary impurity cleaning mechanism 3 in sequence. When the seed cotton passes through the primary impurity cleaning mechanism 1, the primary impurity cleaning mechanism 1 performs preliminary impurity cleaning on the seed cotton, peels off and screens out the branches and leaves that are easy to clean out, and the seed cotton that has undergone preliminary treatment enters the cleaning mechanism 2. When the cleaning mechanism 2 performs purification treatment on the seed cotton, the seed cotton will be further separated from the mixed impurities, and the impurities that cannot be completely removed by the cleaning mechanism 2 will also be processed to be easily separated from the seed cotton, and then the seed cotton enters the secondary impurity cleaning mechanism 3, and the secondary impurity cleaning mechanism 3 processes the seed cotton to remove the impurities still contained in the seed cotton.

[0025] The first-level debris cleaning mechanism 1 includes a first-level debris cleaning chamber 11 and a first-level debris cleaning component 12. The first-level debris cleaning chamber 11 is provided with a first-level debris cleaning cotton inlet, a first-level debris cleaning cotton outlet and a first-level debris cleaning discharge outlet. The direction from the first-level debris cleaning cotton inlet to the first-level debris cleaning cotton outlet in the first-level debris cleaning chamber 11 is a first-level debris cleaning channel. The first-level debris cleaning discharge outlet is located below the first-level debris cleaning channel. At least one first-level debris cleaning component 12 is provided in the first-level debris cleaning chamber 11. Each first-level debris cleaning component 12 is arranged along the direction of the first-level debris cleaning channel. After the seed cotton enters the first-level debris cleaning channel, each first-level debris cleaning component 12 drives the seed cotton to be transported along the first-level debris cleaning channel and clears out the branch and leaf residues or other debris in the seed cotton, and the branch and leaf residues are discharged from the first-level debris cleaning discharge outlet.

[0026] The secondary debris clearing mechanism 3 has a substantially similar structure to the primary debris clearing mechanism 1. The secondary debris clearing mechanism 3 comprises a secondary debris clearing chamber 31 and a secondary debris clearing assembly 32. A secondary debris clearing cotton inlet, a secondary debris clearing cotton outlet and a secondary debris clearing discharge outlet are provided in the secondary debris clearing chamber 31. A secondary debris clearing passage is formed in the secondary debris clearing chamber 31 from the secondary debris clearing cotton inlet to the secondary debris clearing cotton outlet. The secondary debris clearing discharge outlet is located below the secondary debris clearing passage. At least one secondary debris clearing assembly 32 is provided in the secondary debris clearing chamber 31. Each secondary debris clearing assembly 32 is arranged along the direction of the secondary debris clearing passage. After the seed cotton enters the secondary debris clearing passage, each secondary debris clearing assembly 32 drives the seed cotton to be transported along the secondary debris clearing passage and clears out the debris remaining in the seed cotton. The cleared debris is discharged from the secondary debris clearing discharge outlet.

[0027] Both the primary debris cleaning chamber 11 and the secondary debris cleaning chamber 31 are inclined structures with the outlet end higher than the inlet end, both the primary debris cleaning channel and the secondary debris cleaning channel are inclined channels with the outlet end higher than the inlet end, the debris cleaning mechanism 2 is arranged between the primary debris cleaning chamber 11 and the secondary debris cleaning chamber 31, the seed cotton output from the primary debris cleaning channel enters the debris cleaning mechanism 2, and the seed cotton output from the debris cleaning mechanism 2 enters the secondary debris cleaning channel.

[0028] An air shutoff device or other forms of unloading mechanisms are provided on one side of the secondary cleaning cotton outlet of the secondary cleaning mechanism 3 to facilitate the discharge of the purified seed cotton.

[0029] The debris cleaning mechanism 2 includes a debris cleaning chamber 21 and a debris cleaning component. The debris cleaning chamber 21 is arranged between the primary debris cleaning chamber 11 and the secondary debris cleaning chamber 31. The debris cleaning chamber 21 is provided with a debris cleaning cotton inlet, a debris cleaning cotton outlet and a debris cleaning discharge outlet. The debris cleaning cotton inlet is arranged at the top position of the debris cleaning chamber 21, the debris cleaning cotton inlet is located below the primary debris cleaning cotton outlet and communicates with the primary debris cleaning cotton outlet, the debris cleaning cotton outlet is arranged at the side position of the debris cleaning chamber 21, the debris cleaning cotton outlet is located slightly above the secondary debris cleaning cotton inlet and communicates with the secondary debris cleaning cotton inlet, the debris cleaning discharge outlet is arranged at the bottom position of the debris cleaning chamber 21, and the debris separated by the debris cleaning component falls downward to the debris cleaning discharge outlet and is discharged.

[0030] The impurity cleaning component is arranged in the impurity cleaning chamber 21, which is located above the impurity cleaning outlet and below the impurity cleaning cotton inlet. The impurity cleaning component directly receives the seed cotton sent into the impurity cleaning chamber 21 by the primary impurity cleaning mechanism 1 in the impurity cleaning chamber 21, and transfers the seed cotton to the impurity cleaning cotton outlet after processing. The impurities mixed in the seed cotton are not transferred by the impurity cleaning component and fall downward to the impurity cleaning outlet.

[0031] As a specific example of the cooperation between the cleaning component and the cleaning component and the cleaning chamber 21, a cotton passing chamber 22 is provided at the cleaning cotton outlet in the cleaning chamber 21, and the cotton passing chamber 22 is provided with a cotton passing inlet and a cotton passing outlet. The cotton passing outlet is communicated with the cleaning cotton outlet, and the cotton passing inlet is communicated with the inside of the cleaning chamber 21.

[0032] The cleaning component comprises an upper cleaning licker-in roller 23, a lower cleaning licker-in roller 24 and a cleaning cotton brush 25. The upper cleaning licker-in roller 23 is arranged below the cleaning cotton inlet. The mounting shaft of the upper cleaning licker-in roller 23 is connected to the side wall of the cleaning cavity 21 through a bearing and rotates relative to the cleaning cavity 21. The lower cleaning licker-in roller 24 is arranged below the upper cleaning licker-in roller 23. The mounting shaft of the lower cleaning licker-in roller 24 is connected to the side wall of the cleaning cavity 21 through a bearing and rotates relative to the cleaning cavity 21. The mounting shafts of the upper cleaning licker-in roller 23 and the lower cleaning licker-in roller 24 are both provided with power receiving parts on the shaft bodies located outside the cleaning cavity 21. The power receiving parts are used to cooperate with the power mechanism transmission to realize the driving of the upper cleaning licker-in roller 23 and the lower cleaning licker-in roller 24. The lower trash cleaning licker-in roller 24 is located above the trash cleaning and trash discharging port, and a cotton passing channel II is formed between the upper trash cleaning licker-in roller 23 and the lower trash cleaning licker-in roller 24, and the cotton passing channel II is located at the cotton passing entrance of the cotton passing cavity 22. When the seed cotton contacts the upper trash cleaning licker-in roller 23 and the lower trash cleaning licker-in roller 24 and passes through the cotton passing channel II, the cotton is caught by the teeth of the upper trash cleaning licker-in roller 23 or the lower trash cleaning licker-in roller 24, and the seed cotton processed by the upper trash cleaning licker-in roller 23 and the lower trash cleaning licker-in roller 24 can directly enter the cotton passing cavity 22 from the cotton passing entrance, while the mixed debris such as branches and leaves fall downwards because they are not caught and fall out from the trash cleaning and trash discharging port. A cotton picking roller 26 is arranged in the cotton passing chamber 22. The mounting shaft of the cotton picking roller 26 is connected to the side wall of the impurity cleaning chamber 21 through a bearing. The cotton picking roller 26 can rotate relative to the impurity cleaning chamber 21. The portion of the mounting shaft of the cotton picking roller 26 extending out of the impurity cleaning chamber 21 is also provided with a power receiving part. The power mechanism can drive the cotton picking roller 26 to rotate through the power receiving part. The cotton picking roller 26 rotates and brings the seed cotton at the cotton passing entrance into the cotton passing chamber 22 and then sends it into the secondary impurity cleaning chamber 31.

[0033] The clean cotton brush 25 is arranged on the side wall of the clean impurity cavity 21, and the clean cotton brush 25 is located above the cotton passing cavity 22. A cotton passing channel I is formed between the combing part of the clean cotton brush 25 and the inlet side of the upper clean impurity licker-in roller 23, and the cotton passing channel I is located above the cotton passing entrance. The clean cotton brush 25 combs the seed cotton on the upper clean impurity licker-in roller 23 on the one hand, and blocks the debris such as branch residues from falling directly from the clean impurity cotton entrance to the cotton passing entrance on the other hand.

[0034] At least one cotton picking piece is circumferentially arranged on the cotton picking roller 26, and each cotton picking piece rotates with the cotton picking roller 26 and moves between the outer position and the inner position. When the cotton picking piece is in the outer position, it extends out of the cotton passing entrance and is located outside the cotton passing cavity 22; when the cotton picking piece is in the inner position, it is located inside the cotton passing cavity 22; when the cotton picking piece is in the outer position, it extends out of the cotton passing entrance. At this time, as the cotton picking roller 26 rotates, the cotton picking piece located in the outer position can contact and cooperate with the outer end surfaces of the two cleaning rollers in turn, so that the seed cotton located at the cotton passing entrance can be pushed into the cotton passing cavity 22. When the cotton picking piece with the seed cotton is rotated to the cotton passing exit, the carried seed cotton can enter the secondary cleaning cavity 31 under the action of centrifugal force.

[0035] As a specific structural example of the cotton passing chamber 22, an upper guide plate and a lower guide plate are provided in the clean cotton chamber, the upper guide plate is connected to the side wall of the clean impurity chamber 21, the upper guide plate is located above the clean impurity outlet, and the lower guide plate is located at the clean impurity outlet. The space defined by the lower end surface of the upper guide plate and the upper end surface of the lower guide plate in the clean impurity chamber 21 is the cotton passing chamber 22. The lower end surface of the upper guide plate and the upper end surface of the lower guide plate are both arc-shaped surfaces so as to better cooperate with the cotton picking piece to realize the conveying of seed cotton.

[0036] As a specific example of the primary debris cleaning component 12 and the secondary debris cleaning component 32, both the primary debris cleaning component 12 and the secondary debris cleaning component 32 include a debris cleaning conveying roller and a debris cleaning spur. The debris cleaning conveying roller is installed in the primary debris cleaning cavity 11 or the secondary debris cleaning cavity 31 through a bearing and rotates relative to the installation position. The roller shaft of each debris cleaning conveying roller extends out of the cavity and is provided with a power receiving part suitable for transmission with a power mechanism. The outer circumferential surface of the debris cleaning conveying roller is provided with a debris cleaning spur. The debris cleaning spur is a debris cleaning rod. The rod-shaped structure prevents cotton from being entangled and unable to be transported. The debris cleaning conveying roller drives the debris cleaning spur to hook the cotton and transport the cotton. Branches and leaves and other debris will fall off because they cannot connect with the debris cleaning spur, thereby achieving the debris cleaning of the seed cotton.

[0037] See also Figure 3 As an optional embodiment, a first-level debris cleaning screen 13 is provided in the first-level debris cleaning chamber 11 below each first-level debris cleaning component 12, and branches and leaves and other debris cleared out by each first-level debris cleaning component 12 can pass through the mesh holes of the first-level debris cleaning screen 13 and fall off; similarly, a second-level debris cleaning screen 33 may also be provided in the second-level debris cleaning chamber 31 below each second-level debris cleaning component 32, and branches and leaves and other debris cleared out by each second-level debris cleaning component 32 can pass through the mesh holes of the second-level debris cleaning screen 33 and fall off.

[0038] See also Figure 1 and Figure 2 In some preferred embodiments, a slag discharge mechanism 4 is provided below the primary debris removal mechanism 1, the secondary debris removal mechanism 3 and the debris cleaning mechanism 2. Each slag discharge mechanism 4 is used to discharge debris dropped from above, without the need for manual periodic cleaning of the equipment, and each slag discharge mechanism 4 can also be used in conjunction with a debris collection container.

[0039] Furthermore, in order to simplify the structure and reduce the cost, the primary cleaning mechanism 1, the secondary cleaning mechanism 3 and the cleaning mechanism 2 share a slag discharge mechanism 4. Furthermore, since the debris discharged by the primary cleaning mechanism 1 may contain some cotton, a slag discharge mechanism 4 is separately arranged below the primary cleaning mechanism 1, and the debris discharged by the slag discharge mechanism 4 may need to be screened again, while the cotton content in the debris discharged by the secondary cleaning mechanism 3 and the cleaning mechanism 2 is relatively small, so the bottom end of the secondary cleaning cavity 31 is arranged to be open and form a secondary cleaning and debris discharge port, and the secondary cleaning mechanism 3 and the cleaning mechanism 2 share a slag discharge mechanism 4.

[0040] The slag discharge mechanism 4 can be selected as an auger conveyor or other forms of material receiving and feeding equipment.

[0041] See also Figure 1 and Figure 2 In order to facilitate the use of the device of the utility model in combination with a tractor, in some embodiments, it also includes a frame 5 and a traction mechanism 6. The first-level debris cleaning mechanism 1, the second-level debris cleaning mechanism 3, the debris cleaning mechanism 2 and each slag discharge mechanism 4 are all arranged on the frame 5. A connecting turntable is arranged at the bottom front end of the frame 5. The traction mechanism 6 is connected to the connecting turntable through a bearing connection structure. The traction mechanism 6 can rotate relative to the frame 5. The traction mechanism 6 is provided with a connection structure suitable for connecting to a tractor or other tractor.

[0042] In the description of this specification, the description of reference terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for removing residual cotton branches and leaves, characterized in that: The invention comprises a primary debris cleaning mechanism (1), a secondary debris cleaning mechanism (3) and a debris cleaning mechanism (2), wherein the primary debris cleaning mechanism (1) comprises a primary debris cleaning chamber (11) and a primary debris cleaning component (12), wherein at least one primary debris cleaning component (12) is arranged in the primary debris cleaning chamber (11), and the primary debris cleaning chamber (11) is provided with a primary debris cleaning cotton inlet, a primary debris cleaning cotton outlet and a primary debris cleaning cotton discharge outlet, and the secondary debris cleaning mechanism (3) comprises a secondary debris cleaning chamber (31) and a secondary debris cleaning component (32), wherein at least one secondary debris cleaning component (32) is arranged in the secondary debris cleaning chamber (31), and the secondary debris cleaning chamber (31) is provided with a secondary debris cleaning cotton inlet, a secondary debris cleaning cotton outlet and a secondary debris cleaning cotton discharge outlet. The impurity cleaning mechanism (2) comprises an impurity cleaning chamber (21) and an impurity cleaning component. The impurity cleaning chamber (21) is arranged between the first impurity cleaning chamber (11) and the second impurity cleaning chamber (31). The impurity cleaning chamber (21) is provided with an impurity cleaning cotton inlet, an impurity cleaning cotton outlet and an impurity cleaning outlet. The impurity cleaning cotton inlet is located below the first impurity cleaning cotton outlet and communicates with the first impurity cleaning cotton outlet. The impurity cleaning cotton outlet is located above the second impurity cleaning cotton inlet and communicates with the second impurity cleaning cotton inlet. The impurity cleaning component is arranged in the impurity cleaning chamber (21). The impurity cleaning component is arranged above the impurity cleaning outlet and delivers the seed cotton cleaned by the first impurity cleaning component (12) to the second impurity cleaning chamber (31).

2. The device for removing residual seed cotton branches and leaves according to claim 1, characterized in that: A cotton passing chamber (22) is arranged in the cleaning chamber (21), and the cotton passing chamber (22) is provided with a cotton passing inlet and a cotton passing outlet, the cotton passing outlet is communicated with the cleaning cotton outlet, and the cotton passing inlet is communicated with the interior of the cleaning chamber (21); the cleaning assembly comprises an upper cleaning roller (23), a lower cleaning roller (24) and a cleaning brush (25), the upper cleaning roller (23) being arranged above the lower cleaning roller (24) and located at the cleaning cotton inlet, the cleaning brush (25) being arranged on the side wall of the cleaning chamber (21), and the combing portion of the cleaning brush (25) being connected to the cleaning chamber (21). A cotton passage I is formed between the cotton feeding side of the upper trash cleaning licker-in roller (23), and the cotton passage I is located above the cotton passage entrance. The lower trash cleaning licker-in roller (24) is arranged above the trash cleaning discharge outlet. A cotton passage II is formed between the upper trash cleaning licker-in roller (23) and the lower trash cleaning licker-in roller (24), and the cotton passage II is located at the cotton passage entrance of the cotton passage cavity (22). A cotton removing roller (26) is arranged in the cotton passage cavity (22), and the cotton removing roller (26) rotates relative to the cotton passage cavity (22) and removes the seed cotton at the cotton passage entrance into the secondary trash cleaning cavity (31).

3. The device for removing residual seed cotton branches and leaves according to claim 2, characterized in that: At least one cotton-picking piece is arranged on the cotton-picking roller (26) in the circumferential direction. Each cotton-picking piece rotates with the cotton-picking roller (26) and moves between the outer position and the inner position. When the cotton-picking piece is in the outer position, it extends through the cotton inlet and rotates with the cotton-picking roller (26) to contact and cooperate with the outer end surfaces of the two clean and impurity licker-in rollers in sequence.

4. The device for removing residual seed cotton branches and leaves according to claim 3, characterized in that: An upper guide plate and a lower guide plate are provided in the clean impurity chamber (21); the upper guide plate is connected to the side wall of the clean impurity chamber (21) and is located above the clean impurity outlet; the lower guide plate is located at the clean impurity outlet; the lower end surface of the upper guide plate and the upper end surface of the lower guide plate are both arc-shaped surfaces; the space defined by the lower end surface of the upper guide plate and the upper end surface of the lower guide plate in the clean impurity chamber (21) is a cotton passing chamber (22).

5. The device for removing residual seed cotton branches and leaves according to claim 3, characterized in that: The primary debris cleaning assembly (12) and the secondary debris cleaning assembly (32) both comprise a debris cleaning conveying roller and debris cleaning spikes. The debris cleaning conveying roller is installed in the primary debris cleaning cavity (11) or the secondary debris cleaning cavity (31) and rotates relative to the installation position. The debris cleaning spikes are arranged on the outer circumferential surface of the debris cleaning conveying roller.

6. The device for removing residual seed cotton branches and leaves according to claim 5, characterized in that: A first-level debris cleaning screen (13) is provided in the first-level debris cleaning chamber (11) below each first-level debris cleaning component (12); and / or A secondary debris cleaning screen (33) is provided in the secondary debris cleaning chamber (31) below each secondary debris cleaning component (32).

7. The device for removing residual seed cotton branches and leaves according to claim 6, characterized in that: A slag discharge mechanism (4) is provided below the primary debris removal mechanism (1), the secondary debris removal mechanism (3) and the debris cleaning mechanism (2).

8. The device for removing residual seed cotton branches and leaves according to claim 7, characterized in that: The bottom end of the secondary impurity cleaning chamber (31) is open and forms a secondary impurity cleaning and discharge opening. The secondary impurity cleaning mechanism (3) and the impurity cleaning mechanism (2) share a slag discharge mechanism (4).

9. A cotton seed branch and leaf residue removal device according to claim 7 or 8, characterized in that: The slag discharge mechanism (4) is a auger conveyor.

10. The device for removing residual seed cotton branches and leaves according to claim 7, characterized in that: It also includes a vehicle frame (5) and a traction mechanism (6); a primary debris removal mechanism (1), a secondary debris removal mechanism (3), a debris cleaning mechanism (2) and various slag discharge mechanisms (4) are all arranged on the vehicle frame (5); a connecting turntable is arranged at the bottom of the vehicle frame (5); and the traction mechanism (6) is connected to the connecting turntable and rotates relative to the vehicle frame (5).

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