Floor cotton picking and impurity removing device

Abstract

The invention provides a ground cotton picking and impurity removing device, and relates to the technical field of cotton collecting equipment. The ground cotton picking and impurity removing device comprises a feeding conveying mechanism, a first impurity removing mechanism, an impurity removing conveying mechanism, a second impurity removing mechanism, a cotton collecting channel, a cotton collecting bin and a fan. The first impurity removing mechanism comprises at least two impurity removing rollers and a bearing part, the at least two impurity removing rollers are sequentially arranged in the first direction, impurity removing roller shafts extend in the second direction, the bearing part is located on the bottom sides of the at least two impurity removing rollers, and impurity removing hollowed-out parts are formed in the bearing part; the second impurity removing mechanism comprises a plurality of sets of auger assemblies which are sequentially arranged in the second direction, each auger assembly comprises an impurity removing auger and a grating impurity removing barrel, and the impurity removing augers are coaxially sleeved with the grating impurity removing barrels; the draught fan is used for providing airflow into the conveying channel so as to convey the falling cotton materials in the cotton channel to the cotton collecting bin.

Description

Technical Field

[0001] This application relates to the field of cotton harvesting equipment technology, and in particular to a device for picking up and cleaning cotton that has fallen to the ground. Background Technology

[0002] In recent years, the scale of cotton planting has continued to expand, and the mechanized harvesting rate has reached 90%. Mechanized harvesting can significantly reduce labor intensity and improve operational efficiency. However, due to the influence of many factors on the harvesting rate, a large amount of cotton still falls to the ground or onto the branches after mechanized harvesting, which cannot be recycled, resulting in resource waste and economic losses.

[0003] Current cotton-collecting equipment faces the challenge of removing impurities. The collected cotton contains a large amount of long stalks, boll husks, soil, and foreign fiber impurities (including plastic film and drip irrigation tape), which seriously affects its subsequent utilization value. Therefore, there is an urgent need to design a specialized device suitable for complex field conditions, capable of simultaneously achieving efficient collection, effective impurity removal, and stable transportation to improve the quality and economic benefits of recycled cotton. Summary of the Invention

[0004] The purpose of this application is to provide a device for picking up and cleaning up fallen cotton, so as to solve the technical problem that the recovered fallen cotton contains a large amount of long straw, cotton boll husks, soil and foreign fiber impurities, which affects its subsequent utilization value.

[0005] To address the aforementioned technical problems, this application provides the following technical solutions: This application provides a cotton picking and cleaning device, which includes: a housing and a feeding conveying mechanism, a first cleaning mechanism, a cleaning conveying mechanism, a second cleaning mechanism, a cotton collecting channel and a cotton collecting bin, a fan and a drive mechanism installed on the housing; The feeding conveying mechanism is used to convey the fallen cotton material to the first cleaning mechanism along the first direction; The first impurity removal mechanism includes: at least two impurity removal rollers and a support portion. The at least two impurity removal rollers are arranged sequentially in a first direction, and each impurity removal roller shaft extends along a second direction for rotating around its axial direction to remove impurities. The support portion is located on the bottom side of the at least two impurity removal rollers, and the support portion has an impurity removal perforation. The cleaning and conveying mechanism is located between the first cleaning mechanism and the second cleaning mechanism, and is used to convey the fallen cotton material that has been cleaned by the first cleaning mechanism to the second cleaning mechanism. The second cleaning mechanism includes: multiple sets of auger assemblies arranged sequentially along the second direction. Each auger assembly includes: a cleaning auger and a grid cleaning cylinder, which extend along the first direction respectively. The grid cleaning cylinder is coaxially sleeved outside the cleaning auger, and the cleaning auger can rotate relative to the grid cleaning cylinder. The cotton collecting channel has one end connected to the discharge end of the second cleaning mechanism and the other end connected to the cotton collecting bin. The fan is used to provide airflow into the conveying channel to transport the fallen cotton material from the cotton collection channel to the cotton collection bin; The drive mechanism is used to drive the impurity removal roller, the impurity removal auger, and the fan to rotate. Wherein, the first direction and the second direction are perpendicular to each other, and are also perpendicular to the longitudinal direction.

[0006] In some modified embodiments of this application, the feeding conveying mechanism includes: The first conveyor belt is used to receive and transport the ground cotton material along the first direction; A material leveling auger is disposed on the upper side of the first conveyor belt, and the driving mechanism is also used to drive the material leveling auger to rotate.

[0007] In some modified embodiments of this application, the first cleaning mechanism, the cleaning conveying mechanism, and the second cleaning mechanism are arranged sequentially along the first direction; The cleaning and conveying mechanism includes: The second conveyor belt has its inlet end lower than the first cleaning mechanism and overlaps with the first cleaning mechanism in the longitudinal direction, while its outlet end is higher than the second cleaning mechanism.

[0008] In some modified embodiments of this application, the second cleaning mechanism is located above the first cleaning mechanism; The cleaning and conveying mechanism includes: The conveying channel extends longitudinally, with its inlet end connected to the outlet end of the first cleaning mechanism and its outlet end connected to the inlet end of the second cleaning mechanism. The fan is also used to provide airflow into the conveying channel to transport the fallen cotton material that enters the conveying channel from the discharge end of the first cleaning mechanism to the inlet end of the second cleaning mechanism.

[0009] In some modified embodiments of this application, a guide cavity is provided between the discharge end of the impurity removal conveying mechanism and the inlet end of the second impurity removal mechanism. The guide cavity includes multiple cavities corresponding one-to-one with the multiple sets of auger assemblies, and one end of the impurity removal auger extends into the interior of the guide cavity. In this embodiment, a material guiding section is provided on the top side of the partition wall between adjacent cavities, and in the second direction, the height of the material guiding section gradually decreases from the middle to both sides.

[0010] In some modified embodiments of this application, it also includes: Multiple negative pressure adsorption units are disposed one-to-one on the bottom side of the auger assembly, and each negative pressure adsorption unit includes: A negative pressure adsorption shell is installed on the housing. The negative pressure adsorption shell extends along the first direction and has an opening on its top side. The negative pressure adsorption shell also has a discharge port. A rotating blade extends along the first direction and is disposed within the negative pressure adsorption shell. The driving mechanism is also used to drive the rotating blade to rotate, so as to form a negative pressure within the negative pressure adsorption shell to adsorb impurities in the fallen cotton material. The discharge port is used to discharge the impurities.

[0011] In some modified embodiments of this application, the negative pressure adsorption unit further includes: The third conveyor belt is located on the bottom side of the rotating blades and is used to receive the impurities adsorbed in the negative pressure adsorption shell and convey the impurities to the discharge port.

[0012] In some modified embodiments of this application, the outer side of the impurity removal roller is provided with multiple sets of crushing teeth along its circumference, and each set of crushing teeth includes multiple crushing teeth arranged sequentially along the second direction; When the impurity removal rollers of the first impurity removal mechanism rotate synchronously, the crushing tooth groups of adjacent impurity removal rollers mesh with each other.

[0013] In some modified embodiments of this application, the support portion includes a support unit corresponding to each of the impurity removal rollers, adjacent support units are connected in sequence, and the cross-sectional shape of the support unit is an arc shape that conforms to the shape of the impurity removal roller portion; Except for the impurity removal roller located at the feed position of the first impurity removal mechanism, the support units corresponding to the other impurity removal rollers are respectively provided with impurity removal cutouts.

[0014] In some modified embodiments of this application, the impurity removal auger includes a first part and a second part along its axial direction, the first part being close to the impurity removal conveying mechanism, and the outer side of the spiral blades of the first part of the impurity removal auger is uniformly provided with impurity removal teeth.

[0015] Compared to existing technologies, the cotton picking and cleaning device provided in this application adopts a multi-stage cleaning mechanism consisting of a first cleaning mechanism and a second cleaning mechanism, which are combined horizontally and vertically. The first cleaning mechanism's cleaning roller can break up and initially separate large impurities in the cotton material, while the second cleaning mechanism can deeply remove fine and entangled impurities from the cotton material, ensuring full contact and effective cleaning. The cleaned cotton material is then collected in the cotton collection bin via pneumatic conveying. This solves the problems of short cleaning contact time and difficulty in removing large impurities, while simultaneously achieving efficient and stable cleaning and conveying of the cotton. This improves the purity of recycled cotton, reduces resource waste, and increases the economic benefits for cotton farmers. Attached Figure Description

[0016] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein: Figure 1 The diagram illustrates the structure of a ground cotton picking and cleaning device according to an embodiment of the present invention. Figure 2 The diagram illustrates another angle of the structure of a ground cotton picking and cleaning device provided in an embodiment of the present invention. Figure 3 The diagram illustrates another angle of the structure of a ground cotton picking and cleaning device provided in an embodiment of the present invention. Figure 4 A partial structural diagram of a ground-level cotton picking and cleaning device provided in an embodiment of the present invention is shown schematically. Figure 5 schematically shown Figure 4 A magnified schematic diagram of a portion of part a; Figure 6 The schematic diagram illustrates another ground-level cotton picking and cleaning device provided in an embodiment of the present invention. Figure 7 A partial structural diagram of another ground-level cotton picking and cleaning device provided in an embodiment of the present invention is shown schematically. Figure 8 A schematic diagram of the structure of a cleaning roller provided in an embodiment of the present invention is shown. Figure 9 A schematic diagram of another impurity removal roller provided in an embodiment of the present invention is shown. Figure 10 A schematic diagram of the auger assembly of the second cleaning mechanism provided in an embodiment of the present invention is shown. Figure 11 The diagram schematically illustrates another angle of the auger assembly of the second cleaning mechanism provided in an embodiment of the present invention; Figure 12 A schematic diagram of the structure of the impurity removal auger provided in an embodiment of the present invention is shown. Explanation of icon numbers: 1. Shell; 11. Feeding interface; 12. Receiving cavity; 121. Air supply port; 13. Air inlet cavity; 14. First plate; 141. Air inlet perforation; 2. Feed conveyor mechanism; 21. First conveyor belt; 22. Material distribution auger; 3. First cleaning mechanism; 31. Cleaning roller; 311. Crushing teeth; 32. Supporting part; 321. Supporting unit; 3211. Cleaning perforation; 4. Cleaning and conveying mechanism; 41. Second conveyor belt; 42. Conveying channel; 421. First channel section; 422. Second channel section; 5. Second cleaning mechanism; 51. Screwdriver for cleaning impurities; 511. First part; 5111. Cleaning teeth; 512. Second part; 52. Bar screen cleaning cylinder; 53. Discharge bin; 54. Bar screen cleaning brush; 6. Cotton collecting channel; 61. Cotton collecting feed section; 611. First air inlet; 62. Cotton collecting conveyor section; 63. Cotton collecting outlet section; 7. Cotton collection bin; 8. Fan; 9. Feeding chamber; 91. Chamber body; 92. Partition wall; 93. Feeding section; 10. Negative pressure adsorption unit; 101. Negative pressure adsorption shell; 1011. Discharge port; 102. Rotating blades; 103. Second air inlet; x, the first direction; y, the second direction. Detailed Implementation

[0017] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0018] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0019] The core pain point of cotton recovery after mechanized harvesting in Xinjiang cotton-growing areas is that the existing pickers have insufficient cleaning capacity, and the recovered cotton contains a large amount of long straw, cotton boll husks, soil, and other foreign-shaped confining impurities such as mulch film and drip irrigation tape, which seriously affects the subsequent utilization value. Furthermore, the existing cleaning technology has a short contact time with the cotton during the cleaning process, resulting in poor separation of loose and fragmented impurities. Example

[0020] Reference Appendix Figure 1 -Appendix Figure 7 This invention provides a device for picking up and cleaning fallen cotton, comprising: a housing 1 and a feeding conveying mechanism 2, a first cleaning mechanism 3, a cleaning conveying mechanism 4, a second cleaning mechanism 5, a cotton collecting channel 6 and a cotton collecting bin 7, a fan 8, and a drive mechanism (not shown in the figure) installed on the housing 1; the feeding conveying mechanism 2 is used to convey fallen cotton material to the first cleaning mechanism 3 along a first direction x; the first cleaning mechanism 3 includes: at least two cleaning rollers 31 and a supporting part 32, the at least two cleaning rollers 31 are arranged sequentially along the first direction x, and the shaft of each cleaning roller 31 extends along a second direction y, for rotating around its axial direction to remove impurities, the supporting part 32 is located on the bottom side of the at least two cleaning rollers 31, and the supporting part 32 has a cleaning perforation 3211; the cleaning conveying mechanism 4 is located between the first cleaning mechanism 3 and the second cleaning mechanism 5, for conveying cotton material to the second cleaning mechanism 6. The cleaning mechanism 5 conveys the fallen cotton material that has been cleaned by the first cleaning mechanism 3; the second cleaning mechanism 5 includes: multiple sets of auger assemblies arranged sequentially along the second direction y, each auger assembly including: a cleaning auger 51 and a grid cleaning cylinder 52, extending respectively along the first direction x, the grid cleaning cylinder 52 being coaxially sleeved outside the cleaning auger 51, the cleaning auger 51 being rotatable relative to the grid cleaning cylinder 52; a cotton collection channel 6, one end of which is connected to the discharge end of the second cleaning mechanism 5, and the other end of which is connected to the cotton collection bin 7; the fan 8 is used to provide airflow into the conveying channel 42 to convey the fallen cotton material from the cotton collection channel 6 to the cotton collection bin 7; the driving mechanism is used to drive the cleaning roller 31, the cleaning auger 51, and the fan 8 to rotate; wherein, the first direction x and the second direction y are perpendicular and respectively perpendicular to the longitudinal direction.

[0021] Specifically, the ground cotton picking and cleaning device provided in this embodiment can be applied to a ground cotton harvester, that is, as part of the ground cotton harvester, enabling the harvester to simultaneously complete ground cotton harvesting, cleaning, and collection operations; the housing 1 can be part of the housing of the ground cotton harvester, or fixed to the housing of the ground cotton harvester. The ground cotton material harvested by the ground cotton harvester can directly enter the feeding conveying mechanism 2 through the housing. Here, in order to reduce material loss during the feeding stage, a feeding interface 11 can be provided on the part of the housing 1 near the ground cotton harvester and corresponding to the feeding conveying mechanism 2. The size of the feeding interface 11 can match the discharge end of the ground cotton harvester, and the edge of the feeding interface 11 can be rounded to avoid snagging cotton fibers; as shown in the attached figure. Figure 4 and attached Figure 6 As shown, the feed interface 11 can also be set in a "flared" shape, such as a trumpet shape, which can expand the feeding range, reduce the loss of cotton material, and the slope formed can also guide the material, ensuring that the cotton harvested by the cotton harvester can enter the shell 1 efficiently and without loss.

[0022] As attached Figure 1 -Appendix Figure 7 As shown, the fallen cotton material entering the shell 1 is first conveyed by the feeding conveyor 2 in the first direction x. The conveying direction is the first direction x, which can convey the fallen cotton material containing impurities such as long straw, cotton boll shells, soil, and mulch film to the first cleaning mechanism 3 along the first direction x. This allows the fallen cotton material to be smoothly and efficiently transferred to the first cleaning mechanism 3. The second direction y, as described below, is perpendicular to the first direction x, and the first direction x and the second direction y are perpendicular to the longitudinal direction, respectively.

[0023] The ground cotton picking and cleaning mechanism provided in this embodiment adopts a multi-stage cleaning mechanism with horizontal and vertical combination formed by the first cleaning mechanism 3 and the second cleaning mechanism 5.

[0024] Reference Appendix Figure 1 -Appendix Figure 9 The first cleaning mechanism 3 includes at least two cleaning rollers 31 and a support part 32. The cleaning rollers 31 are the core crushing components of the first cleaning mechanism 3. Their main body is a cylindrical metal roller. The length of the cleaning rollers 31 covers the material conveying width of the feeding conveying mechanism 2. The two ends of the cleaning rollers 31 can be connected to the frame of the first cleaning mechanism 3 through bearings, or directly connected to the housing 1. The drive mechanism can drive the cleaning rollers 31 to rotate. Rigid crushing teeth 311 can be provided on the cleaning rollers 31, as shown in the attached figure. Figure 8 and attached Figure 9As shown, the shape of the crushing teeth 311 can be conical, toothed, etc., and the teeth of adjacent impurity removal rollers 31 are staggered. Synchronous reverse rotation can create a shearing and crushing effect on the fallen cotton material. Two adjacent impurity removal rollers 31 can be set as a group, and the first impurity removal mechanism 3 is equipped with at least one group of impurity removal rollers 31. Two impurity removal rollers 31 in the same group rotate in opposite directions, which can achieve multi-stage crushing of the fallen cotton material. For example, it can be set along the first direction and the conveying direction, forming a gradual multi-stage crushing process from coarse to fine crushing. (See attached diagram) Figure 4 and attached Figure 7 As shown, the support part 32 serves to support the material and separate impurities. It can be configured as a plate-like structure or a trough-like structure, etc. The support part 32 has a cleaning perforation 3211, which can be a mesh-like perforation or a grid-like perforation, etc. Through the cooperation of the cleaning rollers 31, large impurities such as long straw and cotton boll shells in the fallen cotton material can be graded and crushed. The counter-rotating cleaning rollers 31 can form a clamping and pushing force to ensure that the fallen cotton material is stably conveyed to the subsequent mechanism. While supporting the material and cooperating with the crushing operation, the support part 32 can allow the crushed impurities to fall directly through the cleaning perforation 3211, so that crushing and preliminary separation are carried out simultaneously. This avoids the secondary entanglement of impurities with the fallen cotton and lays the foundation for the deep processing of the subsequent second cleaning mechanism 5, improving the cleaning efficiency and effect.

[0025] The cleaning and conveying mechanism 4 can connect the first cleaning mechanism 3 and the second cleaning mechanism 5. It can convey the cotton material that has been initially cleaned by the first cleaning mechanism 3 to the second cleaning mechanism 5 for further cleaning and reduce the material drop and accumulation between the first cleaning mechanism 3 and the second cleaning mechanism 5. The structure and cleaning method of the cleaning and conveying mechanism 4 are not limited to one type, and will be described in detail below.

[0026] Reference Appendix Figure 1 -Appendix Figure 7 and attached Figure 10 and attached Figure 11The second cleaning mechanism 5 includes multiple sets of auger assemblies, which are arranged sequentially along the second direction y, and their width covers the material conveying width of the cleaning conveying mechanism 4. Each auger assembly includes two parts: a cleaning auger 51 and a grid cleaning cylinder 52, both of which extend along the first direction x. The grid cleaning cylinder 52 is coaxially sleeved outside the cleaning auger 51. The cylinder wall of the grid cleaning cylinder 52 can adopt a mesh or grid-like hollow design. The cleaning auger 51 has an overall cylindrical spiral structure, which includes spiral blades, and can smoothly propel the fallen cotton during rotation. It is then conveyed to the discharge end of the second cleaning mechanism 5, adapting to the size of fine impurities; under the drive of the drive mechanism, the impurity removal auger 51 can rotate relative to the grid impurity removal cylinder 52, which can push the fallen cotton material to be conveyed along the axial direction, while the impurity removal auger 51 and the grid impurity removal cylinder 52 can generate friction with the fallen cotton material and further knead the material, so that the fallen cotton material is squeezed and collided with each other, and the fine impurities attached to the surface of the fallen cotton are exposed and removed. The impurities can be discharged through the hollow of the grid impurity removal cylinder 52 to complete the impurity removal, and finally achieve deep impurity removal and purification of the fallen cotton material.

[0027] Among them, as attached Figure 10 As shown, the two ends of the impurity removal auger 51 can be rotatably connected to the frame of the second impurity removal mechanism 5. The frame can be fixed to the housing 1, and the frame forms a discharge bin 53 at the discharge end of each auger assembly, which is connected to each auger assembly. The discharge bin 53 can be connected to the cotton collection channel 6.

[0028] The cotton collecting bin 7 can be located on the top side of the second cleaning mechanism 5, and is connected to the discharge end of the second cleaning mechanism 5 and the cotton collecting bin 7 respectively through the cotton collecting channel 6; wherein, as shown in the attached... Figure 3 and attached Figure 7As shown, the cotton collecting channel 6 may include: a cotton collecting feed section 61, a cotton collecting conveying section 62, and a cotton collecting outlet section 63. The cotton collecting feed section 61 is the feed end of the cotton collecting channel 6 and can be configured as a channel section extending along the second direction y. The cotton collecting feed section 61 can be located on the bottom side of multiple discharge bins 53 of the auger assembly and is connected to the discharge bins 53, so that the fallen cotton material cleaned by the second cleaning mechanism 5 can conveniently and thoroughly enter the cotton collecting channel 6. The cotton collecting conveying section 62 extends longitudinally and is connected to one end of the extension direction of the cotton collecting feed section 61. The other end of the cotton collecting feed section 61 can be provided with a first air inlet 611. The cotton collecting outlet section 63 is connected to the top of the cotton collecting conveying section 62 and has a bent part, which can guide the fallen cotton material into the cotton collecting bin 7. To protect materials and improve conveying efficiency, pneumatic conveying can be used to transport the cleaned cotton material. Specifically, the air supply port 121 of the blower 8 can be connected to the first air inlet 611 of the cotton collection feed section 61 via a pipeline. The blower 8 provides airflow into the conveying channel 42, and the airflow forms a stable airflow field in the cotton collection channel 6. Due to its light weight, the cotton material entering the cotton collection channel 6 will be suspended in the channel under the thrust of the airflow and eventually transported to the cotton collection bin 7 for collection. The entire process can achieve contactless and low-loss material transfer through airflow, ensuring efficient collection of the cleaned cotton material and preventing fiber damage.

[0029] Among them, as attached Figure 4 and attached Figure 7 As shown, the fan 8 can be a centrifugal fan 8, and a receiving cavity 12 for accommodating the fan 8 can be provided in the housing 1. An air inlet and several air supply ports 121 are provided on the side wall of the receiving cavity 12. The air supply ports 121 can be connected to pipelines to deliver airflow to the required location.

[0030] The drive mechanism (not shown in the figure) can be used to drive the operation of the feed conveying mechanism 2, as well as the rotation of the impurity removal roller 31 of the first impurity removal mechanism 3, the impurity removal auger 51 of the second impurity removal mechanism 5, and the fan 8. The drive mechanism may include drive units corresponding to each mechanism to drive the corresponding mechanism individually. The drive method may be, but is not limited to, hydraulic, pneumatic, electric, etc.

[0031] Based on the above, this embodiment of the invention proposes a device for picking up and cleaning fallen cotton. It adopts a multi-stage cleaning mechanism consisting of a first cleaning mechanism 3 and a second cleaning mechanism 5, which are combined horizontally and vertically. The first cleaning mechanism 3's cleaning roller 31 can break up and initially separate large impurities in the fallen cotton material. The second cleaning mechanism 5 can deeply remove fine and entangled impurities in the fallen cotton material, ensuring sufficient contact with the fallen cotton material and effective cleaning. The cleaned fallen cotton material is collected in the cotton collection bin 7 by pneumatic conveying. This device solves the problems of short cleaning contact time and difficulty in removing large impurities, and simultaneously achieves efficient and effective cleaning and stable conveying of fallen cotton. It can improve the purity of recycled cotton, reduce resource waste, and improve the economic benefits for cotton farmers.

[0032] In some embodiments, refer to the appendix Figure 4 Appendix Figure 7 -Appendix Figure 9 Multiple sets of crushing teeth 311 are arranged at intervals along the circumference of the outer side of the impurity removal roller 31. Each set of crushing teeth includes multiple rigid crushing teeth 311 arranged sequentially along the second direction y, that is, along the axial direction of the impurity removal roller 31. The shape of the crushing teeth 311 can be conical, triangular, etc. When adjacent impurity removal rollers 31 rotate synchronously in opposite directions, the crushing teeth are in a meshing state, which can form a dual crushing action of "shearing + crushing" on large impurities such as long straw and cotton boll shells in the fallen cotton material. This ensures that the fallen cotton material can be crushed evenly within the axial range of the impurity removal roller 31, and works with the impurity removal perforation 3211 of the support part 32 to achieve the separation of impurities after crushing.

[0033] In some embodiments, refer to the appendix Figure 4 Appendix Figure 7 The support portion 32 can be composed of multiple support units 321 corresponding to each impurity removal roller 31. Adjacent support units 321 are connected sequentially to form a continuous support surface. The cross-section of each support unit 321 is an arc shape that conforms to the shape of the corresponding impurity removal roller 31, which can closely fit the outer contour of the impurity removal roller 31, ensuring stable conveying and full contact of material between the impurity removal roller 31 and the support unit 321. This can prevent the cotton material from accumulating or leaking in the gap between the two, and at the same time increase the contact area between the cotton material and the impurity removal roller 31 and the support portion 32, improving the crushing effect of the crushing section of the impurity removal roller 31 on large impurities; at the same time, as shown in the attached... Figure 4 and attached Figure 7As shown, except for the impurity removal roller 31 corresponding to the feeding position of the first impurity removal mechanism 3, all other impurity removal rollers 31 have impurity removal perforations 3211 on their corresponding support units 321. The impurity removal rollers 31 can first crush and disperse the cotton material that has just entered the first impurity removal mechanism 3, so as to avoid large uncrushed impurities from clogging the perforations, ensuring the continuity of the initial impurity removal, reducing the risk of impurity clogging, and improving the operational stability of the first impurity removal mechanism 3. The impurity removal perforations 3211 can be set as a grid or a grille.

[0034] In some embodiments, refer to the appendix Figure 10 and attached Figure 12 The impurity removal auger 51 can be designed in segments. Specifically, the impurity removal auger 51 can be divided into a first part 511 and a second part 512 along its axial direction. The first part 511 is closer to the impurity removal conveying mechanism 4 than the second part 512. Rigid impurity removal teeth 5111 are evenly arranged on the outer edge of its spiral blades. When the cotton material just enters the second impurity removal mechanism 5, it can quickly hook and peel off impurities such as mulch film and drip irrigation tape wrapped around the cotton. It can also work with the grid impurity removal cylinder 52 to separate fine impurities in sync, thereby improving the impurity removal efficiency of the second impurity removal mechanism 5. The smooth spiral blades of the second part 512 can smoothly push the cotton material, ensuring that the cotton material is conveyed to the subsequent cotton collection stage at a uniform speed.

[0035] The grid cleaning cylinder 52 can be fixed to the housing 1; or, in order to further improve the cleaning effect of the second cleaning mechanism 5, the grid cleaning cylinder 52 can be movably installed on the housing 1, and the drive mechanism is also used to drive the grid cleaning cylinder 52 and the cleaning auger 51 to rotate synchronously and in opposite directions, thereby increasing the friction between the fallen cotton material and the cleaning auger 51 and the grid cleaning cylinder 52, and thus improving the effect of removing impurities from the fallen cotton.

[0036] Specifically, when the bar screen removal cylinder 52 and the bar screen auger 51 rotate in opposite directions, as shown in the attached diagram... Figure 10As shown, the second cleaning mechanism 5 may further include multiple grid cleaning brushes 54, each corresponding to a multiple grid cleaning cylinder 52. Each grid cleaning brush 54 includes a fixed beam and several cleaning parts arranged on the fixed beam. The fixed beam is fixed to the housing 1, and the extension length of the fixed beam in the first direction x is adapted to the length of the grid cleaning cylinder 52. Several cleaning parts are closely arranged along the extension direction of the fixed beam facing the grid cleaning cylinder 52. These cleaning parts contact the surface of the grid cleaning cylinder 52, or may pass through the grid cleaning cylinder 52 and connect with the cleaning auger 51. The outer edge of the spiral blades contacts the screen. During the rotation of the screen cleaning cylinder 52, the screen cleaning brush 54 is a fixed structure that can effectively clean the hollow areas of the screen cleaning cylinder 52 to remove cotton fibers, fine impurities, powder, etc. attached to the hollow areas. This can prevent these attachments from clogging the hollow areas and ensure that the screen cleaning cylinder 52 can stably clean the fine impurities in the screen, preventing the reduction in cleaning efficiency due to clogging. The cleaning part can be a flexible structure, such as a flexible bristle structure or a rubber strip structure extending along the first direction x.

[0037] In some embodiments, refer to the appendix Figure 4 and attached Figure 7 The feeding conveying mechanism 2 can be composed of a first conveyor belt 21 and a material equalization auger 22. The first conveyor belt 21 extends along the first direction x and is used to receive the fallen cotton material harvested by the fallen cotton harvester and stably convey it along the first direction x to the first cleaning mechanism 3. The material equalization auger 22 is horizontally mounted on the upper side of the first conveyor belt 21, and its axis extends along the second direction y. Its two ends can be connected to the frame of the feeding conveying mechanism 2 through brackets or bearings, or directly connected to the housing 1. At the same time, the driving mechanism can drive the material equalization auger 22 to rotate around its own axis. When the material equalization auger 22 rotates, it can break up the clumps of fallen cotton material, so that the fallen cotton material is evenly distributed on the first conveyor belt 21, avoiding the problem of uneven contact and incomplete crushing of the material by the impurity removal roller 31 of the subsequent first cleaning mechanism 3 due to local accumulation of material.

[0038] Furthermore, the first cleaning mechanism 3 and the second cleaning mechanism 5 are not limited to one arrangement, and the matching cleaning and conveying mechanism 4 is not limited to one structural form. The following examples illustrate two arrangements of the first cleaning mechanism 3 and the second cleaning mechanism 5 on the housing 1: The first arrangement method is as follows: (See attached document) Figure 1-As shown in Figure 4, the first cleaning mechanism 3, the cleaning and conveying mechanism 4, and the second cleaning mechanism 5 are arranged sequentially along the first direction x. This arrangement facilitates material transfer between the two cleaning mechanisms, which can reduce material loss and power consumption during the material transfer process. Moreover, the front-to-back connected planar layout makes it easier to flexibly adjust the overall length of the device according to the field operation space, without having to consider the height adaptation problem. The installation and maintenance are simpler and more suitable for large-area flat land operations.

[0039] When using the first arrangement method, as shown in the attached document... Figure 4 As shown, the cleaning and conveying mechanism 4 may include: a second conveyor belt 41, the inlet end of the second conveyor belt 41 being lower than the first cleaning mechanism 3 and overlapping with the first cleaning mechanism 3 in the longitudinal direction, so that the cotton material that has been crushed and initially separated by the first cleaning mechanism can fall directly onto the second conveyor belt 41; at the same time, the outlet end of the second conveyor belt 41 is higher than the second cleaning mechanism 5, so as to ensure that the cotton material falls accurately into the second cleaning mechanism 5, which can avoid material scattering and improve cleaning efficiency.

[0040] When using the first arrangement method, as shown in the attached diagram. Figure 4 As shown, the blower 8 can be installed on the bottom side of the feed inlet 11 of the housing 1, and a receiving cavity 12 can be provided to accommodate the blower 8.

[0041] The second arrangement method is as follows: (See attached document) Figure 6 and attached Figure 7 The second cleaning mechanism 5 is arranged on the upper side of the first cleaning mechanism 3; it adopts a three-dimensional stacked layout, which eliminates the need for the first direction x, i.e. the material conveying direction, to occupy too much planar space, greatly reducing the area occupied by the device when operating in the field, and making it more suitable for scenarios with narrow passages between plots and limited operating space.

[0042] When using the second arrangement method, as shown in the attached document... Figure 7 As shown, the impurity removal conveying mechanism 4 can use pneumatic conveying to convey the pre-removed impurity cotton material. The impurity removal conveying mechanism 4 can include: a conveying channel 42 extending longitudinally; the inlet end of the conveying channel 42 can be configured as a first channel segment 421 extending along the second direction y, connected to the outlet end of the first impurity removal mechanism 3; after the conveying channel 42 extends to a certain height, its outlet end can be configured as a second channel segment 422 extending along the second direction y, connected to the inlet end of the second impurity removal mechanism 5; the width of the vertical portion of the conveying channel 42 in the second direction y can be equal to or smaller than the widths of the first channel segment 421 and the second channel segment 422. When using this arrangement, refer to the attached diagram. Figure 7The fan 8 can be located on the side of the first channel section 421 of the conveying channel 42 away from the first cleaning mechanism 3, and an air inlet chamber 13 for conducting fan airflow is provided on the bottom side of the first channel section 421. The air inlet chamber 13 is separated from the first channel section 421 by the first plate 14. To ensure the uniformity of airflow, air inlet perforations 141 can be evenly provided on the first plate 14. The air inlet perforations 141 can be set as a mesh, grille, etc. When the fan 8 runs, it generates airflow. After being buffered by the air inlet chamber 13, the airflow smoothly enters the first channel section 421 through the evenly provided air inlet perforations 141 on the first plate 14, forming a stable and uniform airflow field. The channel section 421 is connected to the discharge end of the first cleaning mechanism 3. After the initial impurity removal, the fallen cotton material enters the first channel section 421 and moves along the conveying channel 42 under the propulsion of the airflow. The conveying channel 42 extends longitudinally as a whole. The fallen cotton material is first lifted to a certain height by the vertical part, and then passes through the second channel section 422 extending along the second direction y, and finally the fallen cotton material is accurately conveyed to the second cleaning mechanism 5. The airflow can also play a certain auxiliary role in cleaning the fallen cotton material during the conveying process. It can remove some light and fine impurities attached to the surface of the cotton, further improve the purity of the material, and reduce the damage to the fallen cotton fibers through pneumatic conveying.

[0043] When using the first and second layout methods, please refer to the appendix. Figure 4 Appendix Figure 5 and attached Figure 7 Each of the corresponding cleaning and conveying mechanisms 4 can be equipped with a guide cavity 9. The guide cavity 9 is used to evenly transmit the ground cotton material conveyed by the cleaning and conveying mechanism 4 to each auger assembly. Specifically, the guide cavity 9 includes multiple cavities 91 formed by multiple partition walls 92 along the second direction y. The width of the cavity 91 in the second direction y can be adapted to the width of the auger assembly in that direction. The end of the auger 51 of the auger assembly extends into or through the corresponding cavity 91, which can ensure that the material can enter each auger assembly accurately and evenly after being distributed by the guide cavity 9, avoiding the problem of incomplete cleaning caused by material accumulation. Furthermore, by having the end of the auger 51 extend into the cavity 91, the conveying and cleaning efficiency can also be improved.

[0044] Among them, as attached Figure 5As shown, to prevent material from accumulating between adjacent cavities 91, a guide section 93 can be provided on the top side of the partition wall 92 between adjacent cavities 91. In the second direction y, the height of the guide section 93 gradually decreases from the middle to both sides, forming an inclined surface. When the fallen cotton material reaches the guide section 93 during the conveying process, the inclined surface of the guide section 93 can guide the fallen cotton material to fall smoothly into the corresponding cavity 91 along both sides, which can prevent the material from accumulating on the top of the partition wall between adjacent cavities 91, thereby improving the uniformity and efficiency of the device in cleaning the fallen cotton and reducing resource waste.

[0045] In some embodiments, refer to the appendix Figure 1 -Appendix Figure 4 and attached Figure 6 and attached Figure 7 In this embodiment, multiple negative pressure adsorption units 10 are respectively disposed on the bottom side of the auger assembly. Each negative pressure adsorption unit 10 may include a negative pressure adsorption shell 101 and a rotating blade 102. The negative pressure adsorption shell 101 is mounted on the shell 1 and extends along the first direction x, covering the entire length of the auger assembly. The top side of the negative pressure adsorption shell 101 is open to receive the material falling from the auger assembly. Simultaneously, the negative pressure adsorption shell 101 has a discharge port 1011 for discharging impurities. (See attached...) Figure 10 As shown, the rotating blade 102 extends along the first direction x and is built into the negative pressure adsorption shell 101. It is driven to rotate by the driving mechanism, which can form a negative pressure environment inside the negative pressure adsorption shell 101. Together with the auger assembly, it can adsorb and collect impurities in the fallen cotton material, thereby improving the impurity separation capability of the second cleaning mechanism 5 and further improving the purity of the fallen cotton.

[0046] To facilitate the discharge of impurities collected within the negative pressure adsorption unit 10, the following two methods may be used, but are not limited to: The first method is as follows: The negative pressure adsorption unit 10 also includes a third conveyor belt (not shown in the figure). The conveying direction of the third conveyor belt is the first direction x, and it is set on the bottom side of the rotating blade 102. The height and position of the discharge port 1011 correspond to the discharge end of the third conveyor belt, and the discharge end of the third conveyor belt extends to the outside of the discharge port 1011. The surface of the conveyor belt has an adhesive effect, and impurities are not easily removed from the conveyor belt. A scraper or other cleaning structure can be set at the discharge end of the third conveyor belt to remove and discharge impurities on the conveyor belt.

[0047] The second method is as follows: (See attached document) Figure 4 and attached Figure 7The height of the discharge port 1011 can be set lower than the height of the rotating blade 102 and set on one side wall of the negative pressure adsorption shell 101 in the first direction x. A second air inlet 103 is set on the opposite side wall. The air outlet of the blower 8 can be connected to the second air inlet 103 of each negative pressure adsorption shell 101 through a pipeline. The blower 8 provides airflow to the negative pressure adsorption shell 101 to blow the impurities in the negative pressure adsorption shell 101 toward the discharge port 1011 for discharge.

[0048] It should be noted that in the description of this specification, the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention; the terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0049] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A device for picking up and cleaning up loose cotton, characterized in that, include: The housing and the feeding conveying mechanism, the first cleaning mechanism, the cleaning conveying mechanism, the second cleaning mechanism, the cotton collecting channel and the cotton collecting bin, the fan and the drive mechanism installed on the housing; The feeding conveying mechanism is used to convey the fallen cotton material to the first cleaning mechanism along the first direction; The first impurity removal mechanism includes: at least two impurity removal rollers and a support portion. The at least two impurity removal rollers are arranged sequentially in a first direction, and each impurity removal roller shaft extends along a second direction for rotating around its axial direction to remove impurities. The support portion is located on the bottom side of the at least two impurity removal rollers, and the support portion has an impurity removal perforation. The cleaning and conveying mechanism is located between the first cleaning mechanism and the second cleaning mechanism, and is used to convey the fallen cotton material that has been cleaned by the first cleaning mechanism to the second cleaning mechanism. The second cleaning mechanism includes: multiple sets of auger assemblies arranged sequentially along the second direction. Each auger assembly includes: a cleaning auger and a grid cleaning cylinder, which extend along the first direction respectively. The grid cleaning cylinder is coaxially sleeved outside the cleaning auger, and the cleaning auger can rotate relative to the grid cleaning cylinder. The cotton collecting channel has one end connected to the discharge end of the second cleaning mechanism and the other end connected to the cotton collecting bin. The fan is used to provide airflow into the conveying channel to transport the fallen cotton material from the cotton collection channel to the cotton collection bin; The drive mechanism is used to drive the impurity removal roller, the impurity removal auger, and the fan to rotate. Wherein, the first direction and the second direction are perpendicular to each other, and are also perpendicular to the longitudinal direction.

2. The device for picking up and cleaning fallen cotton as described in claim 1, characterized in that, The feeding conveying mechanism includes: The first conveyor belt is used to receive and transport the ground cotton material along the first direction; A material leveling auger is disposed on the upper side of the first conveyor belt, and the driving mechanism is also used to drive the material leveling auger to rotate.

3. The device for picking up and cleaning up loose cotton as described in claim 1, characterized in that, The first cleaning mechanism, the cleaning conveying mechanism, and the second cleaning mechanism are arranged sequentially along the first direction; The cleaning and conveying mechanism includes: The second conveyor belt has its inlet end lower than the first cleaning mechanism and overlaps with the first cleaning mechanism in the longitudinal direction, while its outlet end is higher than the second cleaning mechanism.

4. The device for picking up and cleaning up loose cotton as described in claim 1, characterized in that, The second cleaning mechanism is located above the first cleaning mechanism; The cleaning and conveying mechanism includes: The conveying channel extends longitudinally, with its inlet end connected to the outlet end of the first cleaning mechanism and its outlet end connected to the inlet end of the second cleaning mechanism. The fan is also used to provide airflow into the conveying channel to transport the fallen cotton material that enters the conveying channel from the discharge end of the first cleaning mechanism to the inlet end of the second cleaning mechanism.

5. The device for picking up and cleaning up loose cotton as described in claim 3 or 4, characterized in that, A guide cavity is provided between the discharge end of the cleaning and conveying mechanism and the inlet end of the second cleaning mechanism. The guide cavity includes multiple cavities that correspond one-to-one with the multiple sets of auger assemblies. One end of the cleaning auger extends into the interior of the guide cavity. In this embodiment, a material guiding section is provided on the top side of the partition wall between adjacent cavities, and in the second direction, the height of the material guiding section gradually decreases from the middle to both sides.

6. The device for picking up and cleaning up loose cotton as described in claim 3 or 4, characterized in that, Also includes: Multiple negative pressure adsorption units are disposed one-to-one on the bottom side of the auger assembly, and each negative pressure adsorption unit includes: A negative pressure adsorption shell is installed on the shell. The negative pressure adsorption shell extends along the first direction and has an opening on its top side. The negative pressure adsorption shell also has a discharge port. A rotating blade extends along the first direction and is disposed within the negative pressure adsorption shell. The driving mechanism is also used to drive the rotating blade to rotate, so as to form a negative pressure within the negative pressure adsorption shell to adsorb impurities in the fallen cotton material. The discharge port is used to discharge the impurities.

7. The device for picking up and cleaning up loose cotton as described in claim 6, characterized in that, The negative pressure adsorption unit further includes: The third conveyor belt is located on the bottom side of the rotating blades and is used to receive the impurities adsorbed in the negative pressure adsorption shell and convey the impurities to the discharge port.

8. The device for picking up and cleaning up loose cotton as described in claim 1, characterized in that, The outer side of the impurity removal roller is provided with multiple sets of crushing teeth along its circumference, and each set of crushing teeth includes multiple crushing teeth arranged sequentially along the second direction. When the impurity removal rollers of the first impurity removal mechanism rotate synchronously, the crushing tooth groups of adjacent impurity removal rollers mesh with each other.

9. The device for picking up and cleaning up loose cotton as described in claim 8, characterized in that, The support portion includes a support unit corresponding to each of the impurity removal rollers, and adjacent support units are connected in sequence. The cross-sectional shape of the support unit is an arc shape that follows the shape of the impurity removal roller portion. Except for the impurity removal roller located at the feed position of the first impurity removal mechanism, the support units corresponding to the other impurity removal rollers are respectively provided with impurity removal cutouts.

10. The device for picking up and cleaning up loose cotton as described in claim 1, characterized in that, The impurity removal auger includes a first part and a second part along its axial direction. The first part is close to the impurity removal conveying mechanism, and impurity removal teeth are uniformly arranged on the outer side of the spiral blades of the first part of the impurity removal auger.

Images