Longitudinal axial flow hot pepper re-threshing, separating and cleaning system

Abstract

The invention relates to the technical field of pepper harvesting machinery, in particular to a longitudinal axial flow pepper re-threshing, separating and cleaning system. Comprising a rack which is divided into an upper-layer space and a lower-layer space; an upper cleaning device, a telescopic tooth auger device and a longitudinal axial flow re-threshing roller device are sequentially arranged in the upper-layer space in the material advancing direction; in the lower-layer space, a lower conveying device, a lower cleaning device and a roller conveyor are sequentially arranged in the material advancing direction, and a fan cleaning device is arranged on one side of the roller conveyor; the front end of the lower cleaning device is located below the middle rear section of the upper cleaning device, and the rear end of the lower cleaning device is located below the middle front section of the longitudinal axial flow re-threshing roller device. The longitudinal axial flow re-threshing roller device is matched with the upper cleaning device, the lower cleaning device and the fan cleaning device to perform multi-stage and efficient separation and cleaning on the picked peppers, so that the harvested peppers are low in impurity rate and breakage rate.

Description

Technical Field

[0001] This application relates to the field of chili harvesting machinery technology, and in particular to a longitudinal axial flow chili re-separation and cleaning system. Background Technology

[0002] Currently, chili harvesters in China are categorized into two types based on the presence or absence of a re-threshing device: those with and without re-threshing. Chili harvesters without re-threshing directly collect the harvested chilies into boxes. However, some stems remain attached to the chilies after harvesting, requiring sorting at the drying yard or secondary re-threshing using site cleaning machines before transporting the chilies to the chili processing plant. This process is time-consuming and labor-intensive, significantly increasing labor costs.

[0003] Currently, there are also chili harvesting machines with re-threshing capabilities in China, all of which adopt a transverse axial flow nail-tooth drum structure. Although this type of re-threshing structure can separate some chilies from the stems to a certain extent, thereby reducing the impurity rate after harvesting, this structure still has the problems of incomplete separation of stems and chilies and low separation efficiency. Furthermore, because this structure is arranged laterally, the transverse cutting force generated by the nail teeth on the chilies during operation causes a certain degree of damage to the chili fruits. Some damaged chilies have skin defects after drying, which even affects the quality and price of the chilies. Summary of the Invention

[0004] This application provides a longitudinal axial flow chili pepper re-separation and cleaning system, which can perform multi-stage and efficient separation and cleaning of harvested chili peppers, and the harvested chili peppers have low impurity content and low damage rate.

[0005] The longitudinal axial flow chili pepper de-separation and cleaning system provided in this application includes a frame, which is divided into an upper space and a lower space from top to bottom; In the upper space, an upper cleaning device, a telescopic toothed auger device, and a longitudinal axial flow de-drying drum device are sequentially arranged along the material travel direction; In the lower space, a lower conveying device, a lower cleaning device, and a roller conveyor are arranged sequentially along the material travel direction, and a blower cleaning device is arranged on one side of the roller conveyor; the front end of the lower cleaning device is located below the middle and rear section of the upper cleaning device, and the rear end of the lower cleaning device is located below the middle and front section of the longitudinal axial flow de-drying roller device; The longitudinal axial flow de-drying drum device includes a drum screen frame assembly and an inner auger assembly; The inner auger assembly is disposed inside the drum screen frame assembly; the drum screen frame assembly includes side plates at both ends and multiple support pipes connecting the side plates, the side plates and the support pipes forming a cylindrical frame; inner spiral steel bars and outer spiral steel bars are obliquely interlaced on the cylindrical frame to form a screen. The internal auger assembly includes an auger shaft, a guide cone, a blade mounting seat, and a debris removal plate arranged along the front-back direction of the auger shaft; the guide cone and the blade mounting seat are provided with continuous first and second helical blades, and a plurality of flexible spring teeth arranged in a spiral shape are provided in the helical groove of the second helical blade.

[0006] In a preferred embodiment, during operation, the rotational speed of the inner auger assembly is higher than that of the outer drum screen frame assembly, and the second spiral blades rotate in the opposite direction to the inner spiral steel bars.

[0007] In a preferred embodiment, the longitudinal axial flow re-extraction drum device further includes a mounting frame; Both ends of the drum screen frame assembly and the inner auger assembly are mounted on the mounting frame; A feeding inlet assembly that communicates with the inside of the drum screen frame assembly is also provided on the side of the mounting bracket near the guide cone.

[0008] In a preferred embodiment, a friction wheel plate is provided on the outer side of the side plate of the drum screen frame assembly; The drum screen drive mechanism includes a friction wheel assembly and a compaction wheel assembly; the friction wheel assembly includes a friction wheel shaft and a friction wheel; both ends of the friction wheel shaft are mounted on the mounting frame via bearings with seats, and the input end of the friction wheel shaft is connected to the power unit; the friction wheel is fixedly mounted on the friction wheel shaft and contacts the friction wheel plate; The compaction wheel assembly includes a compaction wheel shaft and a compaction wheel. The two ends of the compaction wheel shaft are mounted on the rear mounting bracket via bearings with seats. The compaction wheel is fixedly mounted on the compaction wheel shaft and contacts the friction wheel plate.

[0009] In a preferred embodiment, an upper pressure plate and a lower pressure plate are respectively arranged opposite to each other on both sides of the upper cleaning device along the material travel direction, and a plurality of first and second upper cleaning rollers are arranged in an alternating manner between the upper pressure plate and the lower pressure plate. The first and second top cleaning rollers are respectively fitted with star-shaped top cleaning plates and square spacers, and the top cleaning plates on the first and second top cleaning rollers are staggered.

[0010] In a preferred embodiment, the lower cleaning device includes a plurality of staggered first lower cleaning rollers and second lower cleaning rollers, the two ends of the first lower cleaning rollers and the second lower cleaning rollers being respectively mounted on the frame via bearing seats; Several polygonal star-shaped lower cleaning plates are respectively fitted on the first lower cleaning roller and the second lower cleaning roller, and the lower cleaning plates on the first upper cleaning roller and the second upper cleaning roller are arranged alternately.

[0011] In a preferred embodiment, the telescopic toothed auger device includes an auger housing and an auger cylinder partially surrounded by the auger housing; The two ends of the auger are respectively provided with a left-handed blade and a right-handed blade. When the telescopic tooth auger device feeds and rotates, it can gather the material and collect it in the middle of the auger. The auger cylinder has several parallel telescopic teeth arranged in the middle, and the telescopic teeth can retract into the auger cylinder at least partially at the discharge port of the telescopic tooth auger device.

[0012] In a preferred embodiment, the fan cleaning device includes a fan housing and a fan; The fan is installed inside the fan housing via a fan shaft. An air volume regulating plate is provided at the air inlet of the fan housing, and an angle regulating plate is provided at the air outlet of the fan housing.

[0013] In a preferred embodiment, a bridge is also included, wherein the unloading position of the bridge is connected to the front end of the upper cleaning device.

[0014] In a preferred embodiment, the device further includes an upper conveying device and a hopper; the hopper is positioned above the frame, one end of the upper conveying device is connected to the outlet of the roller conveyor, and the other end is connected to the inlet of the hopper.

[0015] This application has the following beneficial effects: The upper cleaning device, as the first cleaning system, has a wide range of adjustable cleaning roller spacing and a long cleaning system. It can effectively clean and separate materials such as peppers that have detached from the stems, small stems, leaves, and small particles of impurities into the second cleaning system, while some larger stems and pepper plants that have not detached from the stems are transported to the next separation device system.

[0016] The lower cleaning device, as the second cleaning system, effectively removes small particulate impurities such as dust, sand, and broken stalks without causing the chili peppers to fall off the screen, thus ensuring the cleanliness of the material after collection and effectively reducing the impurity content of the material.

[0017] The telescopic toothed auger device ensures that the material can smoothly enter the feed inlet of the longitudinal axial flow dewatering device.

[0018] In the longitudinal axial flow re-exfoliating drum device, the flexible, elastic, arc-shaped back of the teeth and the inner spiral steel bars on the drum screen frame device rub the chili pepper plants whose stems have not been separated. Then, the spiral blades transport the separated large stems outside the machine. The longitudinal axial flow re-exfoliating device has a significant re-exfoliation effect and a gentle separation, effectively reducing damage to the chili peppers and alleviating the complex process of manual sorting in the later stages.

[0019] The blower cleaning system, as the final cleaning system before the collection box, can further clean the materials from the lower cleaning system and the longitudinal axial flow chili separation and cleaning system. The blower's air volume and direction are adjustable to adapt to chilies at different stages before, during, and after harvest. This device provides graded cleaning, thorough cleaning, high structural space utilization, and convenient maintenance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the longitudinal axial flow chili pepper re-desorption and separation cleaning system provided in the embodiments of this application; Figure 2 This is a schematic diagram of the supernatant cleaning device; Figure 3 This is a schematic diagram of the lower cleaning device; Figure 4 This is a schematic diagram of the telescopic toothed auger device; Figure 5 This is a schematic diagram of the longitudinal axial flow desorption device; Figure 6 This is a schematic diagram of the structure of the drum screen frame assembly; Figure 7 This is a schematic diagram of the internal auger assembly; Figure 8 This is a schematic diagram of the structure of the blower cleaning device; Numbering on the map: 1-bridge; 2-material bin; 3-frame; 4-Upper cleaning device; 41-First upper cleaning roller; 42-Second upper cleaning roller; 43-Upper pressure plate; 44-Lower pressure plate; 45-Tensioning seat; 46-Tensioning wheel; 5-Lower conveyor; 6-Upper conveyor; 7-Lower cleaning device; 71-First lower cleaning roller; 72-Second lower cleaning roller; 73-Bearing with seat; 8-Telescopic toothed auger device; 81-Third helical blade; 82-Helical steel bar; 83-Auger cylinder; 84-Telescopic tooth; 85-Auger shell; 9-Longitudinal axial flow re-extraction drum device; 91-Mounting bracket; 92-Feeding inlet assembly; 93-Drum screen frame assembly; 931-Friction wheel plate; 932-Side plate; 933-Support pipe; 934-Outer spiral reinforcement; 935-Inner spiral reinforcement; 94 - Friction wheel assembly; 95 - Compaction wheel assembly; 96-Inner auger assembly; 961-Auger shaft; 962-First helical blade; 963-Blade mounting base; 964-Second helical blade; 965-Nylon spring tooth; 966-Locking plate; 967-Impedance plate; 10-Fan cleaning device; 101-Mounting plate; 102-Fan shaft; 103-Angle adjustment plate; 104-Air volume adjustment plate; 105-Fan housing; 11-Roller conveyor; 12-Receiving plate device. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and labeled in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this 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 this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] like Figure 1 As shown, this embodiment provides a longitudinal axial flow chili pepper debonding and cleaning system, including a frame 3, which is divided into an upper space and a lower space; In the upper space, along the material travel direction, an upper cleaning device 4, a telescopic toothed auger device 8, and a longitudinal axial flow de-drying drum device 9 are sequentially arranged. In the lower space, a lower conveying device 5, a lower cleaning device 7, and a roller conveyor 11 are sequentially arranged along the material travel direction, with a blower cleaning device 10 installed on one side of the roller conveyor 11. The front end of the lower cleaning device 7 is located below the rear section of the upper cleaning device 4, and the rear end of the lower cleaning device 7 is located below the front section of the longitudinal axial flow re-de-roller device 9. The material discharge position of the bridge 1 is connected to the front end of the upper cleaning device 4, supplying material to the entire system.

[0030] A receiving plate device 12 is provided below the rear end of the longitudinal axial flow re-extraction drum device 9, which is connected to the drum conveyor 11, and is used to receive the material from the rear section of the longitudinal axial flow re-extraction drum device 9.

[0031] like Figure 2 As shown, the upper pressure plate 43 and the lower pressure plate 44 are respectively arranged opposite each other on both sides of the upper cleaning device 4 along the material travel direction, and a number of first upper cleaning rollers 41 and second upper cleaning rollers 42 are arranged in an alternating manner between the upper pressure plate 43 and the lower pressure plate 44; a tensioning seat 45 and a tensioning wheel 46 are also provided at the rear end of the upper cleaning device 4, and the sprockets on each of the first upper cleaning rollers 41 and the second upper cleaning rollers 42 form a transmission circuit with the tensioning wheel 46, so that each upper cleaning roller rotates at the same speed.

[0032] The first and second upper cleaning rollers 41 and 42 are respectively fitted with star-shaped upper cleaning plates and square spacers, with the upper cleaning plates on the first and second upper cleaning rollers 41 and 42 staggered. During the rotation of the upper cleaning rollers, tangential forces are generated along the outer edges of the star-shaped upper cleaning plates and square spacers, causing the material to vibrate during backward conveying. This causes the detached peppers and small impurities to fall from the gaps between the upper cleaning rollers onto the lower conveying device 5, while larger stalks are conveyed into the telescopic toothed auger device 8. The installation gap between adjacent upper cleaning rollers is adjustable to accommodate different yields and varieties of peppers.

[0033] like Figure 3 As shown, the lower cleaning device 7 includes several staggered first lower cleaning rollers 71 and second lower cleaning rollers 72. The two ends of the first lower cleaning rollers 71 and the second lower cleaning rollers 72 are respectively mounted on the frame 3 through bearings 73. Several polygonal star-shaped lower cleaning plates are respectively mounted on the first lower cleaning roller 71 and the second lower cleaning roller 72, and the lower cleaning plates on the first upper cleaning roller 71 and the second upper cleaning roller 72 are staggered. The gap can be adjusted according to the variety of chili pepper and the fruiting height of the chili pepper plant to meet the harvesting needs under different conditions. Because the gap between the staggered lower cleaning plates is small, the lower cleaning device 7 mainly cleans and separates small particulate impurities such as sand and gravel.

[0034] like Figure 4 As shown, the telescopic toothed auger device 8 includes an auger housing 85 and an auger cylinder 83 partially surrounded by the auger housing 85; The two ends of the auger cylinder 83 are respectively provided with a left-handed third spiral blade 81 and a right-handed third spiral blade 81. When the telescopic tooth auger device 8 rotates to feed, it can gather the material to the middle of the auger cylinder 83. The edge of the third spiral blade 81 is also welded with a spiral steel bar 82, which can effectively reduce the damage of chili peppers during the conveying process.

[0035] Several parallel telescopic teeth 84 are provided in the middle of the auger cylinder 83. The telescopic teeth 84 can retract into the auger cylinder 83 at least partially at the discharge port of the telescopic tooth auger device 8, ensuring that the material can smoothly enter the feed port of the longitudinal axial flow dewatering device 9 and preventing the material from being carried back during the rotation of the auger.

[0036] like Figures 5-7 As shown, the longitudinal axial flow re-extraction drum device 9 includes a mounting frame 91, a drum screen frame assembly 93, a friction wheel assembly 94, a compaction wheel assembly 95, and an inner auger assembly 96.

[0037] Both ends of the drum screen frame assembly 93 and the inner auger assembly 96 are mounted on the mounting frame 91; The inner auger assembly 96 is located inside the drum screen frame assembly 93 and is driven to rotate by the inner auger drive mechanism; the drum screen frame assembly 93 is driven to rotate by the drum screen drive mechanism.

[0038] The drum screen frame assembly 93 includes side plates 932 at both ends and multiple support pipes 933 connecting the side plates 932. The side plates 932 and the support pipes 933 are arranged to form a cylindrical frame. Inner spiral steel bars 935 and outer spiral steel bars 934 are arranged diagonally and alternately on the cylindrical frame to form a screen. The internal auger assembly 96 includes an auger shaft 961, a guide cone, a blade mounting seat 963, and a debris removal plate 967 arranged along the front and rear direction of the auger shaft 961; the guide cone and the blade mounting seat 963 are provided with continuous first helical blades 962 and second helical blades 964, and a number of flexible spring teeth arranged in a spiral shape are provided in the helical groove of the second helical blade 964.

[0039] The flexible spring teeth are elongated and are made of nylon material, specifically nylon spring teeth 965. The nylon spring teeth 965 are mounted on the straight cylindrical mounting surface of the blade mounting seat 963 via locking plates 966.

[0040] When the device is working, it relies on the rubbing of nylon spring teeth 965 and inner spiral steel bars 935 to separate the peppers from the stems. Because the nylon spring teeth 965 are flexible and the entire picking process is a circular arc contact surface, the picking process is gentler, thus greatly reducing the damage rate of peppers during the picking process.

[0041] More specifically, multiple debris removal plates 967 are arranged at circumferential intervals along the blade mounting base 963 and are coplanar with the axis of the blade mounting base 963.

[0042] A feeding inlet assembly 92, which communicates with the inside of the drum screen frame assembly 93, is also provided on the side of the mounting frame 91 near the guide cone.

[0043] Friction wheel plate 931 is provided on the outer side of the side plate 932 of the drum screen frame assembly 93. The drum screen drive mechanism includes a friction wheel assembly 94; the friction wheel assembly 94 includes a friction wheel shaft and a friction wheel, the two ends of the friction wheel shaft are mounted on the mounting bracket 91 through bearing seats, and the input end of the friction wheel shaft is connected to the power unit; the friction wheel is fixedly mounted on the friction wheel shaft by a snap ring and contacts the friction wheel plate 931.

[0044] The power unit is an electric motor or a hydraulic motor. The power unit drives the friction wheel assembly 94 to rotate, and the friction wheel makes frictional contact with the friction wheel plate 931 of the drum screen frame assembly 93, thereby driving the drum screen frame assembly 93 to rotate.

[0045] Two compaction wheel assemblies 95 are also provided; each compaction wheel assembly 95 includes a compaction wheel shaft and a compaction wheel. The two ends of the compaction wheel shaft are mounted on the mounting bracket 91 via seated bearings, and the compaction wheel is fixedly mounted on the compaction wheel shaft by cotter pins and contacts the friction wheel plate 931. The compaction wheel assembly 95 enables the drum screen frame assembly 93 to avoid large-scale jumping during rotation, making its operation more stable.

[0046] Preferably, the outer ring of the friction wheel is made of rubber and the compaction wheel is made of nylon, which can ensure that the rotation of the drum screen frame assembly 93 is more stable during operation.

[0047] During operation, material enters the feeding inlet assembly 93. The first spiral blade 962 on the inner auger assembly 96 rotates, conveying the material backward into the drum screen frame assembly 93. The material entering the drum screen frame assembly 93 is rubbed against the inner spiral steel bar 935 within the drum screen frame assembly 93 by the rotational action of the spirally mounted nylon spring teeth 965, causing the chili peppers to detach from the stems. The detached chili peppers, as well as those not completely detached, rotate upwards and fall due to their own weight, with the falling material inside... The material is conveyed backward by the second spiral blade 964 of the auger assembly 96, and then rubbed and conveyed against the inner surface of the inner spiral steel bar 935 by the nylon spring teeth 965. This process is repeated to completely separate the chili peppers from the stems throughout the entire stroke of the drum screen frame assembly 93. The separated chili peppers, leaves, and small stems fall into the gap between the inner spiral steel bar 935 and the outer spiral steel bar 934, while the large stems are discharged from the end through the discharge plate 967 under the conveying action of the inner auger assembly 96.

[0048] When the device is working, the inner auger assembly 96 rotates in the same direction as the drum screen frame assembly 93 under power drive, but the rotation speed of the inner auger assembly 96 is higher than that of the drum screen frame assembly 93, forming a speed difference; and the nylon spring teeth 965 and the second spiral blade 964 on the inner auger assembly 96 rotate in the opposite direction to the inner spiral steel bar 935, ensuring that the peppers are picked more thoroughly.

[0049] The rotation speed of the drum screen frame assembly 93 and the inner auger assembly 96 is flexibly adjustable. The rotation speed can be adjusted according to the harvesting conditions of different varieties, products and different moisture contents of chili peppers to achieve the best working state for chili pepper separation and cleaning.

[0050] The upper cleaning plate and spacer sleeve in the upper cleaning device 4, the lower cleaning plate in the lower cleaning device 7, and the nylon spring teeth in the longitudinal axial flow re-exfoliation roller device 9 are all made of plastic materials including nylon, which greatly reduces the damage to the peppers caused by the cleaning system, ensures the quality of the peppers after drying, and the price after color sorting. Moreover, the upper cleaning roller, upper cleaning plate, lower cleaning roller, lower cleaning plate, and nylon spring teeth can be density adjusted according to the pepper variety and pepper yield, making the machine more adaptable to different pepper planting patterns and better able to meet the needs of most users.

[0051] like Figure 8 As shown, the fan cleaning device 10 includes a fan housing 105 and a fan; the fan housing 105 is mounted on the frame 3 via a mounting plate 101.

[0052] The blower is installed inside the blower housing 105 via the blower shaft 102. An airflow regulating plate 104 is installed at the air inlet of the blower housing 105, and an angle regulating plate 103 is installed at the air outlet of the blower housing 105. By adjusting the angle of the angle regulating plate 103 on the blower cleaning device 10 and adjusting the airflow regulating plate 104, it can adapt to peppers at different stages before, during, and after harvesting, thus achieving a final cleaning of the material before it is conveyed to the roller conveyor 11. Due to the different specific gravities of peppers, small stems, stones, leaves, etc., materials with larger windward areas and lighter weight are blown outside the machine body by the wind force, while peppers and a small amount of impurities are collected in the roller conveyor 11.

[0053] It also includes an upper conveying device 6 and a material box 2; the material box 2 is located above the frame 3, one end of the upper conveying device is connected to the outlet of the roller conveyor 11, and the other end is connected to the inlet of the material box 2.

[0054] When the machine starts operating, the mixture of chili peppers, stems, leaves, and other particulate impurities harvested by the harvesting platform is thrown onto the upper cleaning device 4 by the conveyor of the bridge 1. Because there is a certain gap between the upper cleaning rollers of the upper cleaning device 4, some of the material is transported backward to the telescopic tooth auger device 8 by the conveyor of the upper cleaning rollers, while some of the material falls onto the lower conveyor device 5.

[0055] In this process, the material conveyed to the telescopic tooth auger device 8 is transported by the third spiral blade 81, and the material at both ends gathers in the middle. Then, under the pull of the telescopic tooth 84, the material enters the feeding inlet assembly 92 of the longitudinal axial flow de-rotating drum device 9. The spiral blades on the inner auger device 96 push the material to the rear end of the drum. The material entering the drum is separated from the chili peppers and stems by the rotation of the nylon spring teeth 965 and the inner spiral steel bar 935. The large stems are discharged at the end by the continuously rotating auger, while some of the chili peppers and small stems fall onto the lower cleaning device 7 and some fall onto the receiving plate device 12. All the material is transported to the drum conveyor 11 and falls onto the upper conveying device 6 under the rotation of the drum, and finally is transported to the material box 2 to complete the collection work.

[0056] Some materials, due to their small size, fall onto the lower conveyor 5 under the vibration of the upper cleaning roller and are then conveyed to the lower cleaning device 7. Because the lower cleaning blades are densely arranged, small particles of impurities such as mud and sand fall below the machine, while other impurities such as chili peppers continue to be conveyed. When the material reaches the end of the lower cleaning, some blades and dust are blown out of the machine by the wind force of the blower cleaning device 10, while other materials fall into the roller conveyor 11 and fall onto the upper conveyor 6 under the rotation of the roller, and are finally conveyed to the material box 2 to complete the collection work.

[0057] Repeated experiments have proven that the longitudinal axial flow chili pepper de-separation and cleaning device provided in this embodiment has high space utilization, minimal material damage, low impurity content, reliable performance, and convenient maintenance. Moreover, it greatly reduces the cost of cleaning chili peppers by workers, thus lowering the overall cost. It has excellent practicality and high prospects for widespread application.

[0058] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A longitudinal axial flow chili pepper re-separation and cleaning system, characterized in that, Includes a rack, which is divided into an upper space and a lower space; In the upper space, an upper cleaning device, a telescopic toothed auger device, and a longitudinal axial flow de-drying drum device are sequentially arranged along the material travel direction; In the lower space, a lower conveying device, a lower cleaning device, and a roller conveyor are arranged sequentially along the material travel direction, and a blower cleaning device is arranged on one side of the roller conveyor; the front end of the lower cleaning device is located below the middle and rear section of the upper cleaning device, and the rear end of the lower cleaning device is located below the middle and front section of the longitudinal axial flow de-drying roller device; The longitudinal axial flow de-drying drum device includes a drum screen frame assembly and an inner auger assembly; The inner auger assembly is disposed inside the drum screen frame assembly; the drum screen frame assembly includes side plates at both ends and multiple support pipes connecting the side plates, the side plates and the support pipes forming a cylindrical frame; inner spiral steel bars and outer spiral steel bars are obliquely interlaced on the cylindrical frame to form a screen. The internal auger assembly includes an auger shaft, a guide cone, a blade mounting seat, and a debris removal plate arranged along the front-back direction of the auger shaft; the guide cone and the blade mounting seat are provided with continuous first and second helical blades, and a plurality of flexible spring teeth arranged in a spiral shape are provided in the helical groove of the second helical blade.

2. The longitudinal axial flow chili pepper re-separation and cleaning system according to claim 1, characterized in that, During operation, the rotational speed of the inner auger assembly is higher than that of the outer drum screen frame assembly, and the second spiral blades rotate in the opposite direction to the inner spiral steel bars.

3. The longitudinal axial flow chili pepper re-separation and cleaning system according to claim 1, characterized in that, The longitudinal axial flow re-extraction drum device also includes a mounting frame; Both ends of the drum screen frame assembly and the inner auger assembly are mounted on the mounting frame; A feeding inlet assembly that communicates with the inside of the drum screen frame assembly is also provided on the side of the mounting bracket near the guide cone.

4. The longitudinal axial flow chili pepper re-separation and cleaning system according to claim 3, characterized in that, Friction wheel plates are provided on the outer side of the side plate of the drum screen frame assembly; The drum screen drive mechanism includes a friction wheel assembly and a compaction wheel assembly; the friction wheel assembly includes a friction wheel shaft and a friction wheel; both ends of the friction wheel shaft are mounted on the mounting frame via bearings with seats, and the input end of the friction wheel shaft is connected to the power unit; the friction wheel is fixedly mounted on the friction wheel shaft and contacts the friction wheel plate; The compaction wheel assembly includes a compaction wheel shaft and a compaction wheel. The two ends of the compaction wheel shaft are mounted on the rear mounting bracket via bearings with seats. The compaction wheel is fixedly mounted on the compaction wheel shaft and contacts the friction wheel plate.

5. The longitudinal axial flow chili pepper re-separation and cleaning system according to claim 1, characterized in that, The upper and lower pressure plates are respectively arranged opposite each other on both sides of the upper and lower pressure plates along the material travel direction, and a number of first and second upper cleaning rollers are arranged in an alternating manner between the upper and lower pressure plates. The first and second top cleaning rollers are respectively fitted with star-shaped top cleaning plates and square spacers, and the top cleaning plates on the first and second top cleaning rollers are staggered.

6. The longitudinal axial flow chili pepper re-separation and cleaning system according to claim 1, characterized in that, The lower cleaning device includes several staggered first lower cleaning rollers and second lower cleaning rollers, with both ends of the first lower cleaning rollers and the second lower cleaning rollers respectively mounted on the frame via bearing seats; Several polygonal star-shaped lower cleaning plates are respectively fitted on the first lower cleaning roller and the second lower cleaning roller, and the lower cleaning plates on the first upper cleaning roller and the second upper cleaning roller are arranged alternately.

7. The longitudinal axial flow chili pepper re-separation and cleaning system according to claim 1, characterized in that, The telescopic toothed auger device includes an auger housing and an auger cylinder partially surrounded by the auger housing; The two ends of the auger are respectively provided with a left-handed blade and a right-handed blade. When the telescopic tooth auger device feeds and rotates, it can gather the material and collect it in the middle of the auger. The auger cylinder has several parallel telescopic teeth arranged in the middle, and the telescopic teeth can retract into the auger cylinder at least partially at the discharge port of the telescopic tooth auger device.

8. The longitudinal axial flow chili pepper re-separation and cleaning system according to claim 1, characterized in that, The fan cleaning device includes a fan casing and a fan; The fan is installed inside the fan housing via a fan shaft. An air volume regulating plate is provided at the air inlet of the fan housing, and an angle regulating plate is provided at the air outlet of the fan housing.

9. The longitudinal axial flow chili pepper re-separation and cleaning system according to claim 1, characterized in that, It also includes a bridge, the unloading position of which is connected to the front end of the upper cleaning device.

10. The longitudinal axial flow chili pepper re-separation and cleaning system according to claim 1, characterized in that, It also includes an upper conveying device and a material bin; the material bin is located above the frame, one end of the upper conveying device is connected to the outlet of the roller conveyor, and the other end is connected to the inlet of the material bin.

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