Multiple screening device based on chili processing

Abstract

The invention discloses a multiple screening device based on chili processing, and particularly relates to the technical field of chili processing, the multiple screening device comprises a control table, the rear end of the control table is fixedly connected with a winnowing screening structure, and the right end of the winnowing screening structure is provided with a liquid screening structure; a draining structure communicating with the liquid screening structure is arranged on the right portion of the inner side of the winnowing screening structure, and a water circulation structure communicating with an inner cavity of the liquid screening structure is arranged at the right end of the liquid screening structure. According to the multiple screening device for chili processing, impurities are preliminarily separated through the flotation effect, the movement frequency of the impurities is increased through the effect of the aeration assembly, and the separation effect and efficiency are improved; the discharging driving assembly is matched with the arc-shaped guide groove and the vertical guide groove to feed the chilies into the draining structure for draining, the chilies are evenly fed into the range of the winnowing assembly for secondary screening under the action of the draining structure, the separation efficiency is further improved, and impurity residues in the chilies are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of pepper processing, and in particular to a multiple screening device for pepper processing. Background Art

[0002] In the field of pepper processing, due to the widespread popularity of industrialized production, mechanical equipment is widely used in various processes of agricultural production, including pepper picking. Since mechanical equipment will perform all-round picking without selection, the peppers picked by the machine are of different sizes, and multiple levels of selection are required to meet the needs of subsequent processing. In addition, peppers are easily affected by external particles of sand and gravel and dust in the air during the picking process, and these impurities will affect the quality of the pepper powder.

[0003] Chinese patent publication No. CN117225589B discloses a multiple screening device for pepper processing, including an anti-blocking device, a regulator, a dust collector and a No. 1 screener, wherein the dust collector is fixedly installed inside the anti-blocking device, the No. 1 screener is fixedly installed at the bottom of the dust collector, a No. 2 screener is arranged below the No. 1 screener, the No. 2 screener is slidably connected to the inside of the anti-blocking device, the top of the No. 2 screener is fixedly connected to the regulator, the anti-blocking device includes an outer shell, and the inner side of the outer shell is fixedly connected to the dust collector.

[0004] Although the screening equipment in the above-mentioned literature can achieve the functions of preventing blockage and limiting flow, in actual use, the properties and volumes of various impurities such as stones, dust, branches and trunks in peppers are different. Separation only by screening discs and filter plates cannot meet such complex separation requirements. In addition, the five-sided rotating strips provided therein will also damage the pepper skin during the stirring process. The damaged skin will cause the pepper to rot and deteriorate during subsequent storage and drying, affecting product quality. Summary of the invention

[0005] The main purpose of the present invention is to provide a multiple screening device for pepper processing, which can effectively solve the problem that the existing screening device cannot separate impurities of various properties and will cause damage to the pepper.

[0006] To achieve the above object, the technical solution adopted by the present invention is: A multiple screening device for pepper processing, comprising a console, a wind selection and screening structure fixedly connected to the rear end of the console, a liquid screening structure arranged at the right end of the wind selection and screening structure, a drainage structure connected to the liquid screening structure arranged at the right inner side of the wind selection and screening structure, and a water circulation structure connected to the inner cavity of the liquid screening structure arranged at the right end of the liquid screening structure; The liquid screening structure includes an aeration assembly located at the lower right end of the air separation screening structure, a screening drum is fixedly connected to the upper end of the aeration assembly, the inner surface of the screening drum is provided with vertical guide grooves in a rectangular distribution, the upper ends of the two vertical guide grooves located on the right side are provided with arc-shaped guide grooves extending to the upper side of the drainage structure, the inner surfaces of the four vertical guide grooves are commonly connected to a storage basket through a pulley sliding connection, and a discharge drive assembly connected to the storage basket is provided on the right side of the upper end of the screening drum.

[0007] Preferably, an overflow groove connected to the right end of the liquid screening structure is opened on the upper right side of the inner surface of the screening cylinder, a circulation groove connected to the water circulation structure is opened at the bottom right end of the inner surface of the screening cylinder, and a reflux groove connected to the drainage structure is opened on the upper left side of the inner surface of the screening cylinder.

[0008] Preferably, the aeration assembly includes a ventilation box fixedly connected to the lower end of the screening cylinder, a constant pressure air pump is fixedly connected to the bottom wall of the inner surface of the ventilation box, a diverter is fixedly connected to the output end of the constant pressure air pump, the upper output port of the diverter passes through the lower end of the screening cylinder and extends to the bottom wall of the inner cavity of the screening cylinder and is fixedly connected to an aeration pipe, and the front output port of the diverter is fixedly connected to a diverter pipe connected to the air selection and screening structure.

[0009] Preferably, the discharging drive assembly includes two winding shafts rotatably connected to the left side wall of the screening drum and a driving motor 1 fixedly connected to the front end of the screening drum, the front end of the winding shaft located at the lower part is transmission-connected to the output end of the driving motor 1, an overload protection bearing is fixedly installed in the middle of the outer surface of the winding shaft located at the upper part, the outer surface of the overload protection bearing and the outer surface of the winding shaft located at the lower part are fixedly connected with a transmission gear, and the outer surfaces of the two transmission gears are meshed with a transmission gear together.

[0010] Preferably, the front and right parts of the outer surface of the winding shaft located at the upper part are both wound with cables fixedly connected to the storage baskets in the two vertical guide grooves on the left, and the front and rear parts of the outer surface of the winding shaft located at the lower part are both wound with cables fixedly connected to the storage baskets in the two vertical guide grooves on the right.

[0011] Preferably, the water circulation structure includes a water storage bin fixedly connected to the right end of the screening cylinder, the upper end of the water storage bin is located at the lower part of the overflow trough, the circulation trough is connected to the middle part of the inner cavity of the water storage bin, a removable filter screen is movably installed on the inner surface of the water storage bin located at the lower part of the circulation trough, a circulation pump is fixedly connected to the bottom wall of the inner cavity of the water storage bin, and the output end of the circulation pump is fixedly connected to a water supply pipe connected to the bottom wall of the inner cavity of the screening cylinder.

[0012] Preferably, the air separation and screening structure includes a mounting frame fixedly connected to the right end of the screening drum, a wind separation component located inside the mounting frame is fixedly connected to the middle of the left end of the screening drum, a partition fixedly connected to the lower end of the drainage structure is arranged at the front end of the wind separation component, a pepper conveyor belt is fixedly installed at the position on the right side of the partition on the inner surface of the mounting frame, a waste conveyor belt is fixedly installed at the position on the upper left of the pepper conveyor belt on the inner surface of the mounting frame, the mounting frame is fixedly connected to an air jet pipe at the upper left position of the waste conveyor belt and the pepper conveyor belt, a storage box is slidably connected to the inner surface of the mounting frame at the tail ends of the waste conveyor belt and the pepper conveyor belt, the two air jet pipes are connected to the diversion pipe, and the air jet pipe located on the upper part of the pepper conveyor belt is located to the left of the air jet pipe located on the waste conveyor belt.

[0013] Preferably, the air selection component includes an outer shell fixedly connected to the left end of the screening drum, the front and rear ends of the outer shell are provided with ventilation holes connected to the inner cavity thereof, the ventilation holes penetrate the inner surface of the adjacent mounting frame and extend to the front and rear ends of the mounting frame, a cross support plate is fixedly connected to the right side of the inner surface of the outer shell, a drive motor 2 is fixedly connected to the inner surface of the cross support plate, a fan blade is fixedly connected to the output end of the drive motor 2, and a plurality of guide grilles are linearly distributed and fixedly connected to the front part of the inner surface of the outer shell.

[0014] Preferably, the drainage structure includes a drainage conveyor belt fixedly installed on the right side of the inner surface of the installation frame and flush with the upper end of the screening drum, the inner surface of the installation frame is fixedly connected to a material leveling scraper at a position in the middle of the upper end of the material leveling scraper, the arc-shaped guide groove is semicircular and its tail end is located at the right part of the upper end of the drainage conveyor belt, the inner surface of the installation frame is fixedly connected to a return water box connected to the reflux groove at a position on the lower side of the drainage conveyor belt, and the lower end of the return water box is fixedly connected to the partition.

[0015] Preferably, a drive motor three is fixedly connected to the front end of the installation frame, and the output end of the drive motor three passes through the front end of the installation frame and is connected to a pulley on one side of the pepper conveyor belt. The waste conveyor belt, pepper conveyor belt and drain conveyor belt are all connected via a transmission belt.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses water delivered by a water circulation structure to perform preliminary separation of impurities affected by buoyancy. In this process, the aeration component is used to accelerate the movement frequency of impurities, thereby improving separation effect and efficiency. The discharge drive component is further used in conjunction with the arc guide groove and the vertical guide groove to deliver the peppers to the drainage structure for drainage. The drainage structure evenly delivers the peppers to the range of the wind selection component to perform secondary screening of branches and leaves therein, thereby further improving separation efficiency and reducing residual impurities therein.

[0017] 2. The present invention utilizes the action of a constant pressure air pump and an aeration pipe to aerate the water in the screening cylinder, and uses fine bubbles to impact the impurities and peppers inside, thereby accelerating the sinking of heavy impurities, adsorbing light impurities and driving them to float, and finally delivering them to the water storage bin through the overflow trough and the circulation trough. Further, through the action of a circulation pump and a water delivery pipe, clean water is uniformly provided to the screening cylinder, and through the impact and overflow of the water flow, heavy impurities such as stones and pepper seeds are prompted to flow from the circulation trough into the water storage bin, and light dust and light leaves without branches overflow into the water storage bin through the overflow trough, and these impurities are filtered through a detachable filter screen to facilitate subsequent cleaning.

[0018] 3. The present invention utilizes the effect of the discharge drive assembly on the storage basket to drive the storage basket to rise along the vertical guide groove, and under the continuous operation of the drive motor 1 and the effect of the overload protection bearing, pulls the storage basket from one side to make it flip along the arc guide groove trajectory with the vertex of the left vertical guide groove as the center of the circle, thereby pouring the peppers in the storage basket onto the drain conveyor belt, and utilizing the material leveling scraper above the drain conveyor belt to flatten the peppers so that they pass through the drain conveyor belt evenly into the range of the air separation assembly, and synchronously returns the moisture in the mixture to the screening drum through the return water box and the reflux groove to avoid excessive moisture affecting the efficiency of the air separation assembly.

[0019] 4. The present invention utilizes the different densities of branches, leaves and peppers, and performs air separation on the peppers sent into the drainage conveyor belt under the action of the air separation component, blowing relatively light impurities such as branches and leaves onto the waste conveyor belt, and the heavier peppers that are less affected by the wind will fall down to the upper layer of the pepper conveyor belt. At this time, the air jet pipe connected to the diversion pipe is used to blow on the surface of the peppers and branches to promote the moisture on the surface to slide off, and finally send them into the storage box to wait for the next production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the liquid screening structure of the present invention; Figure 3 It is a schematic diagram of the structure of the drainage structure and the air selection and screening structure of the present invention; Figure 4 It is a structural schematic diagram of the aeration assembly of the present invention; Figure 5 It is a structural schematic diagram of the water circulation structure of the present invention; Figure 6 It is a structural schematic diagram of the discharging drive assembly of the present invention; Figure 7 For the present invention Figure 6 A is an enlarged schematic diagram of the local structure at center A; Figure 8It is a schematic cross-sectional structure diagram of the air selection assembly of the present invention; Fig. 9 It is a schematic diagram of the positional relationship between the air separation component of the present invention and the waste conveyor belt and the pepper conveyor belt; Fig.10 It is a schematic diagram of the transmission relationship among the waste conveyor belt, the pepper conveyor belt and the drain conveyor belt of the present invention.

[0021] In the figure: 1. water circulation structure; 11. water storage tank; 12. circulation pump; 13. water delivery pipe; 14. removable filter; 2. liquid screening structure; 21. screening cylinder; 211. reflux trough; 212. overflow trough; 213. circulation trough; 22. storage basket; 23. arc guide trough; 24. aeration assembly; 241. ventilation box; 242. constant pressure air pump; 243. diverter; 244. aeration pipe; 245. diverter pipe; 25. vertical guide trough; 26. discharging drive assembly; 261. drive motor 1; 262. winding wire Shaft; 263, cable; 264, transmission gear; 265, overload protection bearing; 3, drainage structure; 31, material scraper; 32, drainage conveyor belt; 33, return water box; 4, air separation and screening structure; 41, air separation component; 411, shell; 412, cross support plate; 413, ventilation hole; 414, drive motor two; 415, fan blade; 416, guide grille; 42, waste conveyor belt; 43, pepper conveyor belt; 44, jet pipe; 45, storage box; 46, installation frame; 47, drive motor three; 5, control console. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] Embodiment 1, as Figure 1 As shown, a multiple screening device for pepper processing includes a control console 5, a wind selection and screening structure 4 is fixedly connected to the rear end of the control console 5, a liquid screening structure 2 is arranged at the right end of the wind selection and screening structure 4, a drainage structure 3 connected to the liquid screening structure 2 is arranged at the right inner side of the wind selection and screening structure 4, and a water circulation structure 1 connected to the inner cavity of the liquid screening structure 2 is arranged at the right end.

[0024] Further, in order to initially separate granular impurities such as stones, dust, and pepper seeds, refer to Figure 2The liquid screening structure 2 includes an aeration assembly 24 located at the lower right end of the air selection screening structure 4, and a screening drum 21 is fixedly connected to the upper end of the aeration assembly 24. The inner surface of the screening drum 21 is provided with vertical guide grooves 25 in a rectangular distribution. The upper ends of the two vertical guide grooves 25 located on the right side are provided with arc-shaped guide grooves 23 extending to the upper side of the drainage structure 3. The inner surfaces of the four vertical guide grooves 25 are connected to the storage basket 22 through a pulley sliding connection. A discharge drive assembly 26 connected to the storage basket 22 is provided on the right side of the upper end of the screening drum 21.

[0025] The screening drum 21 is used to store water, wherein the vertical guide groove 25 can put the storage basket 22 into the water in the screening drum 21 under the action of the discharging drive assembly 26. The storage basket 22 stores fresh peppers containing impurities put in by the operator. Some leaves and floating dust in these fresh peppers will be suspended on the water surface under the action of buoyancy, and stones or pepper seeds with relatively large density will sink to the bottom of the screening drum 21 to achieve preliminary separation; In addition, the aeration assembly 24 can further disrupt the position of the peppers, so that the impurities wrapped therein are also exposed, and then screened and separated.

[0026] Furthermore, in order to further separate large impurities such as branches and leaves, refer to Figure 3 The wind selection and screening structure 4 includes a mounting frame 46 fixedly connected to the right end of the screening drum 21, a wind selection component 41 located inside the mounting frame 46 is fixedly connected to the middle part of the left end of the screening drum 21, a partition fixedly connected to the lower end of the drainage structure 3 is arranged at the front end of the wind selection component 41, a pepper conveyor belt 43 is fixedly installed at the position on the right side of the partition on the inner surface of the mounting frame 46, a waste conveyor belt 42 is fixedly installed at the position on the inner surface of the mounting frame 46 at the upper left position of the pepper conveyor belt 43, an air jet pipe 44 is fixedly connected to the mounting frame 46 at the upper left position of the waste conveyor belt 42 and the pepper conveyor belt 43, a material storage box 45 is slidably connected to the inner surface of the mounting frame 46 at the tail ends of the waste conveyor belt 42 and the pepper conveyor belt 43, the two air jet pipes 44 are both connected to the diverter pipe 245, and the air jet pipe 44 located on the upper part of the pepper conveyor belt 43 is located to the left of the air jet pipe 44 located on the waste conveyor belt 42.

[0027] The screened peppers are sent to the drainage structure 3 through the cooperation of the discharge drive component 26, the arc guide groove 23 and the vertical guide groove 25. After the water is drained by the drainage structure 3, they are sent to the air selection component 41 for secondary screening. The branches and leaves with lower density are blown to the waste conveyor belt 42 by wind force, and the fresh peppers with higher density will fall onto the pepper conveyor belt 43 and be gradually transported forward, and finally enter the storage box 45 to complete the screening.

[0028] It should be noted that the above-mentioned control console 5 is a conventional control device, which has been widely used in the prior art. In the present invention, it is only used to realize the function of controlling the actions of the electrical equipment in the water circulation structure 1, the aeration component 24, the discharge drive component 26, and the drive motor 47. Its control method is conventional on-off and forward and reverse connection control, which is a mature technical means in the prior art. The present invention will no longer display or elaborate on its internal structure, operating principle, wiring, and control method.

[0029] During the operation of this embodiment, the operator puts the fresh peppers containing impurities into the storage basket 22, and uses the water sent in by the water circulation structure 1 to preliminarily separate the impurities affected by buoyancy. In this process, the aeration component 24 is used to accelerate the movement frequency of the impurities, thereby improving the separation effect and efficiency. The discharge drive component 26 is further used in conjunction with the arc guide groove 23 and the vertical guide groove 25 to send the peppers into the drainage structure 3 for drainage. The drainage structure 3 is used to evenly send the peppers into the range of the air selection component 41 to perform secondary screening of the branches and leaves therein, thereby further improving the separation efficiency and reducing the residual impurities therein.

[0030] Embodiment 2. Based on embodiment 1, this embodiment utilizes the action of constant pressure air pump 242 and aeration pipe 244 to aerate the water in screening drum 21, and uses fine bubbles to impact internal impurities and peppers, thereby accelerating the sinking of heavy impurities, adsorbing light impurities and driving them to float, and finally delivering them to water storage bin 11 through overflow trough 212 and circulation trough 213. Further, clean water is provided to screening drum 21 at a uniform speed through the action of circulation pump 12 and water delivery pipe 13, and heavy impurities such as stones and pepper seeds are caused to flow from circulation trough 213 into water storage bin 11 through the impact and overflow of water flow, and light dust and light leaves without branches overflow into water storage bin 11 through overflow trough 212, and these impurities are filtered through detachable filter screen 14 to facilitate subsequent cleaning.

[0031] Specifically, in order to achieve the goal of driving water circulation and promoting the entry of stones and dust into the water storage tank 11, refer to Figure 4 An overflow groove 212 connected to the right end of the liquid screening structure 2 is opened on the upper right side of the inner surface of the screening cylinder 21, and a circulation groove 213 connected to the water circulation structure 1 is opened on the bottom right end of the inner surface of the screening cylinder 21.

[0032] The water in the screening cylinder 21 is continuously provided by the water circulation structure 1, so that the water overflows. The peppers in the storage basket 22 can be roughly divided into three types of substances, namely, stones, mud and sand, pepper seeds with higher density, peppers, branches and leaves with branches with relatively medium density, and dust and leaves without branches with lighter density. The movement trends of these impurities in water are respectively sinking, floating and rising; Therefore, through the overflow groove 212 arranged on the upper side, the surface water containing dust and leaves floating on the upper side can be sent to the water circulation structure 1 for filtration and separation when the water circulation structure 1 continues to supply water. The circulation groove 213 at the bottom is driven by the continuous water supply impact of the water circulation structure 1 to drive the mud, gravel, pepper seeds, etc. to flow through the circulation groove 213, and then enter the water circulation structure 1 through the circulation groove 213.

[0033] Further, in order to further enhance the movement of substances in water through aeration, see Figure 4 The aeration assembly 24 includes a ventilation box 241 fixedly connected to the lower end of the screening cylinder 21, a constant pressure air pump 242 is fixedly connected to the bottom wall of the inner surface of the ventilation box 241, a diverter 243 is fixedly connected to the output end of the constant pressure air pump 242, an upper output port of the diverter 243 passes through the lower end of the screening cylinder 21 and extends to the bottom wall of the inner cavity of the screening cylinder 21 and is fixedly connected to an aeration pipe 244, and a front output port of the diverter 243 is fixedly connected to a diverter pipe 245 communicated with the air selection and screening structure 4.

[0034] Since the peppers are overlapped after being placed in the storage basket 22, some impurities sandwiched in the middle cannot be separated during the screening process. At this time, the constant pressure air pump 242 continuously provides constant pressure air to the aeration pipe 244, and the air is dispersed into fine bubbles through the aeration head on the aeration pipe 244 and discharged. If these bubbles hit impurities such as stones during the floating process, they will be broken, thereby impacting the impurities, thereby enhancing their movement tendency. If they come into contact with light and small impurities such as dust, they will be adsorbed on the surface and float to the water surface with the dust. At the same time, some peppers will be contaminated with dirt on their surface, which cannot be removed by simple vibration screening. At this time, the bubbles generated by the aeration pipe 244 can separate the dirt from the peppers, further ensuring the quality and cleanliness of the peppers.

[0035] Further, in order to realize the water circulation inside the screening cylinder 21 and promote the outflow of impurities such as dust, stones, and pepper seeds from the screening cylinder 21, refer to Figure 5 The water circulation structure 1 includes a water storage tank 11 fixedly connected to the right end of the screening drum 21, the upper end of the water storage tank 11 is located at the lower part of the overflow groove 212, the circulation groove 213 is connected to the middle part of the inner cavity of the water storage tank 11, and a detachable filter screen 14 is movably installed on the inner surface of the water storage tank 11 at the lower part of the circulation groove 213. A circulation pump 12 is fixedly connected to the bottom wall of the inner cavity of the water storage tank 11, and a water supply pipe 13 connected to the bottom wall of the inner cavity of the screening drum 21 is fixedly connected to the output end of the circulation pump 12.

[0036] The water storage tank 11 is used to store water, and its upper part is adjacent to the outlet of the overflow tank 212. The water overflowing from the overflow tank 212 will enter the water storage tank 11. At the same time, the middle part thereof is connected to the circulation tank 213, which is used to receive water containing pepper seeds and stones. These waters will enter the lower part of the water storage tank 11 after being filtered by the detachable filter screen 14, and will be sent back to the inner side of the screening cylinder 21 by the circulation pump 12. The comprehensive water discharge efficiency of the circulation tank 213 and the overflow tank 212 is lower than the water injection efficiency of the circulation pump 12, so as to ensure that the overflow tank 212 can continuously overflow the water containing impurities. The detachable filter screen 14 is detachable and easy to clean and replace.

[0037] Embodiment 3. Based on embodiment 2, this embodiment further utilizes the effect of the discharge drive assembly 26 on the storage basket 22 to drive the storage basket 22 to rise along the vertical guide groove 25, and under the continuous operation of the drive motor 261 and the overload protection bearing 265, the storage basket 22 is pulled from one side to make it flip along the left vertical guide groove 25 vertex as the center of the circle and the arc guide groove 23 trajectory as the path, so that the peppers in the storage basket 22 are poured onto the drain conveyor belt 32, and the material scraper 31 above the drain conveyor belt 32 is used to flatten the peppers so that they pass through the drain conveyor belt 32 evenly into the range of the air separation assembly 41, and the moisture in the mixture is synchronously sent back to the screening drum 21 through the return water box 33 and the reflux groove 211 to avoid excessive moisture affecting the efficiency of the air separation assembly 41.

[0038] Specifically, in order to drive the storage basket 22 to rise along the vertical guide groove 25 and flip it through the guiding track of the arc-shaped guide groove 23 to pour the peppers onto the upper side of the drain structure 3, refer to Figure 6 and Figure 7 The discharging drive assembly 26 includes two winding shafts 262 rotatably connected to the left side wall of the screening drum 21 and a driving motor 261 fixedly connected to the front end of the screening drum 21. The front end of the winding shaft 262 located at the lower part is transmission-connected to the output end of the driving motor 261. An overload protection bearing 265 is fixedly installed in the middle of the outer surface of the upper winding shaft 262. The outer surface of the overload protection bearing 265 and the outer surface of the winding shaft 262 located at the lower part are fixedly connected with a transmission gear 264. The outer surfaces of the two transmission gears 264 are meshed with a transmission gear 264.

[0039] Further, in order to guide the storage basket 22 to flip, refer to Figure 7 The front and right outer surfaces of the upper winding shaft 262 are both wound with cables 263 that are fixedly connected to the storage baskets 22 in the two vertical guide grooves 25 on the left. The front and rear outer surfaces of the lower winding shaft 262 are both wound with cables 263 that are fixedly connected to the storage baskets 22 in the two vertical guide grooves 25 on the right.

[0040] The driving motor 1 261 drives the lower winding shaft 262 to rotate, and the cable 263 is wound in opposite directions to the winding shaft 262. Therefore, during the rotation of the winding shaft 262, one side of the cable 263 is tightened, and the other side is loosened. Under this premise, the cable 263 is driven to move by driving the motor 261 in reverse, thereby driving the storage basket 22 to rise along the vertical guide groove 25. When the storage basket 22 moves to the top of the vertical guide groove 25, the pulley on the left side of the storage basket 22 is restricted and cannot continue to rise, but the pulley on the right side can continue to slide along the arc guide groove 23 through the traction of the cable 263. At this time, the overload protection bearing 265 is disengaged due to the forced stop of the internal transmission. Although the transmission gear 264 on the overload protection bearing 265 can continue to rotate with the lower winding shaft 262 through meshing, it will no longer be transmitted to the upper winding shaft 262 through the overload protection bearing 265, thereby achieving one side stopping and the other side continuing to be pulled by the cable 263 to flip along the trajectory of the arc guide groove 23, thereby dumping impurities such as peppers and branches in the storage basket 22 to the top of the drainage structure 3.

[0041] Similarly, during the forward rotation, the driving motor 1 261 rotates forward to drive the cable 263 to slowly convert the storage basket 22 from the inverted state to the initial state along the arc guide groove 23. During this process, due to the limitation of the arc guide groove 23, the pulley of the storage basket 22 located in the right vertical guide groove 25 still cannot fall. At this time, the overload protection bearing 265 is still in the overload disengaged state, and finally returns to the inside of the vertical guide groove 25, and the storage basket 22 is slowly placed into the inner cavity of the screening drum 21 for preliminary screening. The three transmission gears 264 mesh with each other, and transmit power in the two winding shafts 262 and keep the two winding shafts 262 rotating in the same direction. The installation method and transmission method thereof are both prior arts.

[0042] It should be noted that the overload protection bearing 265 is also called a torque limiter or a safety coupling, which is a mechanical overload protection device, mainly used to be installed between the driving side and the load side of the power transmission, and can be disengaged or slipped when overloaded, so that the active and passive sides of the power transmission are separated, protecting the mechanical equipment from damage caused by overload. It is a conventional protection part in the prior art, so its specific structure and operating principle will not be shown and explained in the present invention; In the present invention, after the pulley of the left storage basket 22 stops moving, the drive motor 261 continues to operate, driving the pulley of the right storage basket 22 to continue sliding along the arc guide groove 23. At this time, since the cable 263 on the right pulley cannot continue to be reeled in, its resistance exceeds the maximum torque that the overload protection bearing 265 can withstand, and the overload protection bearing 265 begins to slip, allowing it to continue to rotate, thereby avoiding affecting the rotation of the lower winding shaft 262.

[0043] Further, in order to drain and flatten the peppers fed into the storage basket 22, refer to Figure 3 The drainage structure 3 includes a drainage conveyor belt 32 fixedly installed on the right side of the inner surface of the installation frame 46 and flush with the upper end of the screening drum 21. The inner surface of the installation frame 46 is located at the middle of the upper end of the material leveling scraper 31 and is fixedly connected to the material leveling scraper 31. The arc guide groove 23 is semicircular and its tail end is located at the right part of the upper end of the drainage conveyor belt 32. The inner surface of the installation frame 46 is located at the lower side of the drainage conveyor belt 32 and is fixedly connected to a return water box 33 connected to the return flow groove 211. The lower end of the return water box 33 is fixedly connected to the partition, and a return flow groove 211 connected to the drainage structure 3 is opened on the upper left side of the inner surface of the screening drum 21.

[0044] When the peppers in the storage basket 22 are dumped onto the upper side of the drain conveyor belt 32, they are in a pile. If they fall directly into the wind selection screening structure 4, the wind force cannot act evenly on the peppers and branches, thereby affecting the separation effect. In addition, there is a large amount of attached water, which will also affect the comprehensive density quality, thereby reducing the efficiency of the wind selection component 41. The drain conveyor belt 32 is used to spread the peppers flat on the upper side of the drain conveyor belt 32 to prevent the peppers from falling into the range of the air separation component 41 in piles. At the same time, spreading the peppers also helps the surface attached water to flow downward, flow into the return water box 33 through the drain conveyor belt 32, and finally return to the screening cylinder 21 through the reflux trough 211.

[0045] Embodiment 4. Based on Embodiment 3, this embodiment utilizes the different densities of branches, leaves and peppers. The peppers sent into the drain conveyor belt 32 are air-selected under the action of the air selection component 41, and relatively light impurities such as branches and leaves are blown onto the waste conveyor belt 42. The heavier peppers that are less affected by the wind will fall down to the upper layer of the pepper conveyor belt 43. At this time, the jet pipe 44 connected to the diversion pipe 245 is used to blow on the surface of the peppers and branches to promote the moisture on the surface to slide off, and finally they are sent to the storage box 45 to wait for the next production process.

[0046] Specifically, in order to utilize the different densities of branches, leaves and peppers to separate them by wind, refer to Figure 8 and Fig. 9The air selection component 41 includes a shell 411 fixedly connected to the left end of the screening drum 21, and ventilation holes 413 connected to the inner cavity thereof are provided at the front and rear ends of the shell 411. The ventilation holes 413 penetrate the inner surface of the adjacent mounting frame 46 and extend to the front and rear ends of the mounting frame 46. A cross support plate 412 is fixedly connected to the right side of the inner surface of the shell 411, and a driving motor 2 414 is fixedly connected to the inner surface of the cross support plate 412. A fan blade 415 is fixedly connected to the output end of the driving motor 2 414, and a plurality of guide grilles 416 are linearly distributed and fixedly connected to the front of the inner surface of the shell 411.

[0047] The driving motor 2 414 drives the fan blade 415 to rotate at a high speed, and the air is blown obliquely upward through the guiding effect of the guide grille 416. According to conventional data, the suspension speed of the pepper leaves is 3.71 m / s, the suspension speed of the pepper stalk is 8.96 m / s, and the suspension speed of the pepper fruit is 13.37 m / s. Because the pepper stalks, pepper leaves with stalks, and pepper fruits all carry water, their mass is heavier than the conventional situation. The control console 5 adjusts the speed of the driving motor 2 414 to control the wind speed at 10 m / s, and the branches and unseparated pepper leaves are blown to the top of the waste conveyor belt 42 by wind. Since the suspension speed of the pepper is greater than the wind speed, it will fall in a curve and eventually remain above the pepper conveyor belt 43. The separated pepper stalks, pepper leaves, and pepper fruits will follow the operation of the waste conveyor belt 42 and the pepper conveyor belt 43 respectively to move to the storage box 45 on the right side; At the same time, since the peppers are only drained through the drain conveyor belt 32, some moisture will inevitably remain on their surface. At this time, due to falling and wind, some water will fall off, but there will still be droplets remaining on the surface of the peppers or branches, which is not conducive to subsequent processing and storage. The surface is blown by the jet pipe 44 connected to the diversion pipe 245 to promote the shedding of droplets on the surface, and the use of wind blowing can also promote surface drying, which is convenient for subsequent storage and processing. In the actual production process, a heating wire can be installed in the jet pipe 44 according to the length of the production line, or a drying equipment can be installed under the pepper conveyor belt 43.

[0048] Further, in order to achieve synchronous movement of the drain conveyor belt 32, the waste conveyor belt 42, and the pepper conveyor belt 43, refer to Fig.10 A driving motor 3 47 is fixedly connected to the front end of the mounting frame 46. The output end of the driving motor 3 47 passes through the front end of the mounting frame 46 and is connected to a pulley on one side of the pepper conveyor belt 43. The waste conveyor belt 42, the pepper conveyor belt 43, and the drain conveyor belt 32 are all connected through a transmission belt.

[0049] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multiple screening device for pepper processing, comprising a control console (5), characterized in that: The rear end of the control console (5) is fixedly connected to a wind selection and screening structure (4); the right end of the wind selection and screening structure (4) is provided with a liquid screening structure (2); the right inner side of the wind selection and screening structure (4) is provided with a drainage structure (3) connected to the liquid screening structure (2); the right end of the liquid screening structure (2) is provided with a water circulation structure (1) connected to its inner cavity; The liquid screening structure (2) comprises an aeration assembly (24) located at the lower right end of the air separation screening structure (4), the upper end of the aeration assembly (24) is fixedly connected to a screening drum (21), the inner surface of the screening drum (21) is provided with vertical guide grooves (25) in a rectangular distribution, the upper ends of the two vertical guide grooves (25) located on the right side are provided with arc-shaped guide grooves (23) extending to the upper side of the drainage structure (3), the inner surfaces of the four vertical guide grooves (25) are slidably connected to a storage basket (22) via a pulley, and a discharge drive assembly (26) connected to the storage basket (22) is provided on the right side of the upper end of the screening drum (21).

2. A multiple screening device for pepper processing according to claim 1, characterized in that: An overflow groove (212) connected to the right end of the liquid screening structure (2) is provided on the upper right side of the inner surface of the screening cylinder (21), a circulation groove (213) connected to the water circulation structure (1) is provided on the bottom right side of the inner surface of the screening cylinder (21), and a reflux groove (211) connected to the drainage structure (3) is provided on the upper left side of the inner surface of the screening cylinder (21).

3. The multiple screening device for pepper processing according to claim 1, characterized in that: The aeration assembly (24) comprises a ventilation box (241) fixedly connected to the lower end of the screening cylinder (21); a constant pressure air pump (242) is fixedly connected to the bottom wall of the inner surface of the ventilation box (241); a flow divider (243) is fixedly connected to the output end of the constant pressure air pump (242); an upper output port of the flow divider (243) passes through the lower end of the screening cylinder (21) and extends to the bottom wall of the inner cavity of the screening cylinder (21) and is fixedly connected to an aeration pipe (244); and a front output port of the flow divider (243) is fixedly connected to a flow divider pipe (245) that is in communication with the air selection screening structure (4).

4. The multiple screening device for pepper processing according to claim 1, characterized in that: The discharging drive assembly (26) comprises two winding shafts (262) rotatably connected to the left side wall of the screening drum (21) and a driving motor (261) fixedly connected to the front end of the screening drum (21); the front end of the winding shaft (262) located at the bottom is drivingly connected to the output end of the driving motor (261); an overload protection bearing (265) is fixedly installed in the middle of the outer surface of the winding shaft (262) located at the top; the outer surface of the overload protection bearing (265) and the outer surface of the winding shaft (262) located at the bottom are both fixedly connected to a transmission gear (264); and the outer surfaces of the two transmission gears (264) are meshed with the transmission gear (264) together.

5. The multiple screening device for pepper processing according to claim 4, characterized in that: The front and right sides of the outer surface of the winding shaft (262) at the upper part are both wound with cables (263) fixedly connected to the storage baskets (22) in the two left vertical guide grooves (25), and the front and rear sides of the outer surface of the winding shaft (262) at the lower part are both wound with cables (263) fixedly connected to the storage baskets (22) in the two right vertical guide grooves (25).

6. The multiple screening device for pepper processing according to claim 2, characterized in that: The water circulation structure (1) comprises a water storage bin (11) fixedly connected to the right end of a screening drum (21), the upper end of the water storage bin (11) being located below an overflow trough (212), the circulation trough (213) being connected to the middle of an inner cavity of the water storage bin (11), a detachable filter screen (14) being movably mounted on an inner surface of the water storage bin (11) at a position below the circulation trough (213), a circulation pump (12) being fixedly connected to the bottom wall of the inner cavity of the water storage bin (11), and a water delivery pipe (13) being connected to the bottom wall of the inner cavity of the screening drum (21) being fixedly connected to the output end of the circulation pump (12).

7. The multiple screening device for pepper processing according to claim 3, characterized in that: The wind selection and screening structure (4) comprises a mounting frame (46) fixedly connected to the right end of the screening drum (21); a wind selection component (41) located inside the mounting frame (46) is fixedly connected to the middle of the left end of the screening drum (21); a partition plate fixedly connected to the lower end of the drainage structure (3) is arranged at the front end of the wind selection component (41); a pepper conveyor belt (43) is fixedly installed at a position on the right side of the partition plate on the inner surface of the mounting frame (46); and a waste conveyor belt (43) is fixedly installed at a position on the upper left side of the pepper conveyor belt (43) on the inner surface of the mounting frame (46). The waste conveyor belt (42) and the pepper conveyor belt (43) are fixedly connected to the installation frame (46) at the upper left position of the waste conveyor belt (42) and the pepper conveyor belt (43), and the inner surface of the installation frame (46) is slidably connected to the storage box (45) at the tail end of the waste conveyor belt (42) and the pepper conveyor belt (43), and the two jet pipes (44) are connected to the diversion pipe (245), and the jet pipe (44) located on the upper part of the pepper conveyor belt (43) is located to the left of the jet pipe (44) located on the waste conveyor belt (42).

8. The multiple screening device for pepper processing according to claim 7, characterized in that: The air selection component (41) includes a shell (411) fixedly connected to the left end of the screening drum (21), the front and rear ends of the shell (411) are provided with ventilation holes (413) connected to the inner cavity thereof, the ventilation holes (413) penetrate the inner surface of the adjacent mounting frame (46) and extend to the front and rear ends of the mounting frame (46), a cross support plate (412) is fixedly connected to the right side of the inner surface of the shell (411), the inner surface of the cross support plate (412) is fixedly connected to a second drive motor (414), the output end of the second drive motor (414) is fixedly connected to a fan blade (415), and a plurality of guide grilles (416) are linearly distributed and fixedly connected to the front of the inner surface of the shell (411).

9. The multiple screening device for pepper processing according to claim 7, characterized in that: The drainage structure (3) comprises a drainage conveyor belt (32) fixedly mounted on the right side of the inner surface of the mounting frame (46) and flush with the upper end of the screening drum (21); the inner surface of the mounting frame (46) is fixedly connected to the material leveling scraper (31) at a position located in the middle of the upper end of the material leveling scraper (31); the arc-shaped guide groove (23) is semicircular and its tail end is located at the right part of the upper end of the drainage conveyor belt (32); the inner surface of the mounting frame (46) is fixedly connected to a return water box (33) connected to the return flow groove (211) at a position located on the lower side of the drainage conveyor belt (32); the lower end of the return water box (33) is fixedly connected to the partition.

10. The multiple screening device for pepper processing according to claim 9, characterized in that: The front end of the mounting frame (46) is fixedly connected to a drive motor three (47); the output end of the drive motor three (47) passes through the front end of the mounting frame (46) and is connected to a pulley on one side of the pepper conveyor belt (43); and the waste conveyor belt (42), the pepper conveyor belt (43), and the drain conveyor belt (32) are all connected via a transmission belt.

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