A pepper sorting production line and a pepper sorting method

Abstract

The invention discloses a pepper sorting production line and a sorting method thereof, which belongs to the technical field of agricultural machinery, and comprises a separator, a conveyor belt and a fruit sorting machine which are sequentially connected from front to back, the separator comprises a separator frame, a hanging conveying device for conveying pepper vines, a screening device and a power transmission system, a hanging conveying device is arranged on the top of the separator frame, a pair of claw rollers are arranged below the hanging conveying device, the claw rollers are provided with a number of claw teeth for picking pepper fruits, and the claw rollers are driven to rotate by the power transmission system; a screening device is arranged below the claw rollers, a horizontal conveyor belt of the conveyor belt is arranged below the screening device, and the lifting conveyor belt of the conveyor belt is arranged obliquely behind the separator; the output end of the lifting conveyor belt is connected to the rolling screen drum of the fruit sorting machine through an inclined hopper, and a collection container for pepper fruits is arranged at the outlet end of the rolling screen drum. The pepper sorting production line of the invention can efficiently and high-quality pick pepper fruits from pepper vines and separate sundries.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a pepper sorting production line and a sorting method thereof. Background Art

[0002] At present, my country has a wide pepper planting area, mainly distributed in 28 provinces and regions across the country, forming regional pepper distribution centers represented by Guizhou, Hunan, Xinjiang, Shaanxi, etc. Since 2000, my country's pepper area has reached 1.25-1.3×105hm2, with a total output of 2.8×107t, accounting for about 46% of the world's total output, and a total output value of nearly 70 billion yuan. In 2010, my country's pepper planting area reached 1.33×106hm2, accounting for 10% of the country's vegetable planting area.

[0003] In the process of harvesting and picking red peppers, in most cases, farmers use harvesting machinery to harvest the whole pepper vines, dry them together, and then manually pick the red pepper fruits from the pepper vines. Because red peppers are spicy and pungent, manual picking is a harsh working environment. Not only is the labor intensity high, it is easy to irritate and burn the skin and respiratory tract, causing great harm to the human body, but the picking efficiency is low and the labor cost is high.

[0004] Therefore, providing a pepper sorting production line that can efficiently and high-quality pick pepper fruits from pepper vines and separate debris has become a technical problem that technicians in this field urgently need to solve. Summary of the invention

[0005] The purpose of the present invention is to provide a pepper sorting production line and a sorting method thereof, which can replace manual sorting of peppers, efficiently and high-quality pick pepper fruits from pepper vines, and separate debris.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The present invention discloses a pepper sorting production line, comprising a separator, a conveyor belt and a fruit sorting machine which are sequentially connected from front to back; the separator comprises a separator frame, a hanging conveyor device for conveying pepper seedlings, a screening device and a power transmission system, the hanging conveyor device is arranged on the top of the separator frame, a pair of claw rollers are arranged below the hanging conveyor device, the claw rollers are provided with a plurality of claw teeth for grabbing pepper fruits, and the claw rollers are driven to rotate by the power transmission system; a screening device is arranged below the claw rollers, a horizontal conveyor belt of the conveyor belt is arranged below the screening device, and a lifting conveyor belt of the conveyor belt is arranged obliquely at the rear of the separator; the output end of the lifting conveyor belt is connected to the rolling screen drum of the fruit sorting machine through an inclined hopper, and a collection container for pepper fruits is arranged at the outlet end of the rolling screen drum.

[0008] Furthermore, the claw teeth are specifically spring teeth with certain flexibility, and the roots of a plurality of the claw teeth are arranged on the outer cylindrical surface of the claw roller according to a spiral line.

[0009] Furthermore, the hanging conveying device includes two sets of conveying chains symmetrically arranged in the middle position of the top of the separator frame. The two sets of conveying chains are tilted with the front lower and the back higher. A gap for clamping the roots of the pepper vines is left between the two sets of conveying chains, and the gap can be adjusted. One set of the conveying chains is driven by the first reduction motor through a split gear driving sprocket. A clamping plate is provided on the back of the clamping side chain of the conveying chain to prevent the chain from loosening, and an elastic part is connected to the outer surface of the conveying chain.

[0010] Furthermore, the screening device includes a primary screen, a secondary screen and a first fan, the primary screen includes two symmetrical screen plates and are respectively tiltedly arranged directly below a pair of claw rollers, a leakage gap is arranged between the two screen plates of the primary screen; a secondary screen is arranged below the leakage gap, the secondary screen is composed of a plurality of screen rods tiltedly arranged with the upper part higher than the lower part, and the leakage gaps between the screen rods are dense at the top and sparse at the bottom; the first fan is located below the primary screen and on the opposite side of the secondary screen, the air outlet of the first fan faces the upper part of the secondary screen, and the first fan is driven by the power transmission system.

[0011] Furthermore, a vibrating rod is connected to the lower surface of the primary screen, and the other end of the vibrating rod is connected to the main shaft of the fourth pulley of the power transmission system through a crank-connecting rod structure; the crossbeam at the bottom of the secondary screen is rotatably connected to a rocker through a pin shaft, and the other end of the rocker is rotatably connected to the hanging plate of the frame through a pin shaft, and the top of the secondary screen is connected to the main shaft of the first pulley group of the power transmission system through an eccentric wheel structure.

[0012] Furthermore, a horizontal conveyor belt of the conveyor belt is arranged at the lower part of the secondary screen, and a collecting bucket is arranged between the horizontal conveyor belt and the secondary screen, and the collecting bucket is fixedly connected to the separator frame.

[0013] Furthermore, a second fan is arranged on the lifting conveyor belt of the conveyor belt, and the second fan is fixedly connected to the conveyor belt bracket of the conveyor belt through a support plate. The air outlet of the second fan is connected to a debris removal wind hood, and the negative pressure air suction port of the debris removal wind hood is arranged on the upper surface of the lifting conveyor belt.

[0014] Furthermore, the outer surface of the conveyor belt of the conveyor belt is provided with anti-skid patterns to prevent materials from sliding off; the outlet end of the impurity removal wind hood is provided with a wind shield, and the opening angle of the wind shield can be adjusted.

[0015] Furthermore, the fruit sorting machine also includes a fruit sorting machine frame, a conveyor belt in a screen drum and a fourth reduction motor. The rolling screen drum is tilted so that it is higher in the front and lower in the back, and is mounted on the separator frame through two pairs of rollers at both ends, and the two end faces of the rolling screen drum are axially positioned by limiting wheels arranged on the separator frame respectively; the conveyor belt in the screen drum is mounted on the separator frame through a support plate, and the main body is located inside the rolling screen drum, and the rear section of the conveyor belt in the screen drum extends out of the rolling screen drum; the fourth reduction motor is arranged on the separator frame, located at the lower front end of the fruit sorting machine, and the two output shaft ends of the fourth reduction motor drive the conveyor rollers of the conveyor belt in the screen drum and the rolling screen drum to rotate through belt transmission respectively.

[0016] The corresponding embodiment of the present invention further provides a pepper sorting method, which uses any of the pepper sorting production lines described above to perform pepper sorting operations. The specific operation steps of the pepper sorting method include the following steps:

[0017] The first step is loading. After the equipment is started, the whole pepper vine is hung upside down at the entrance of the hanging conveying device in front of the separator, and continuously conveyed backwards;

[0018] The second step is picking the fruits, wherein a pair of claw rollers rotate toward each other, and the claw teeth continuously scrape the pepper fruits off the pepper vines;

[0019] The third step is screening, wherein the screening device further separates the pepper fruits from the branches and leaves and part of the straw;

[0020] The fourth step is conveying and removing impurities. The screened pepper fruits are conveyed to the fruit sorting machine of the next process through the conveyor belt. When passing through the negative pressure suction port of the impurity removal hood during the conveying process, impurities such as rotten leaves are further removed;

[0021] The fifth step is fruit separation. When the pepper fruits pass through the fruit sorting machine, the roller screen drum lifts the pepper fruits with stems to the conveyor belt inside the screen drum for separate transmission and output, and the pepper fruits without stems are output to the pepper fruit collection container through the outlet end of the roller screen drum.

[0022] Compared with the prior art, the beneficial technical effects of the present invention are:

[0023] 1. The present invention provides a pepper sorting production line, which is connected in sequence from front to back through a separator, a conveyor belt and a fruit sorter. During the transmission of the inverted pepper vines on the hanging conveyor device, the claw rollers continuously pick up the pepper fruits, which are then screened by a screening device in sequence and transported to the fruit sorter by a conveyor belt. The pepper fruits are further separated and then enter the corresponding pepper fruit collection container. It can replace manual sorting of peppers, efficiently and high-quality pick the pepper fruits from the pepper vines, and separate the sundries.

[0024] 2. By adopting flexible claws and installing a plurality of claws in a spiral arrangement, it is easy to grab the pepper fruits on the pepper vines without causing the pepper fruits to be crushed or rotten. By coordinating the spiral grabbing and the conveying speed of the hanging conveying device, a better fruit picking effect can be obtained.

[0025] 3. By setting the conveyor chain at an angle with the front lower and the back higher, the upside-down pepper vines are pulled downward by the gripping force of the claws during the conveying process. The inclined conveyor chain can lift the upside-down pepper vines so that the main part of the pepper vines is always in the best gripping position relative to the claw roller. By setting a clamping plate made of nylon material, it is ensured that the soft conveyor chain in the middle position can also provide sufficient gripping force to clamp the roots of the pepper vines. By setting oblong holes on the mounting plate of the driven conveyor chain, it is convenient to adjust the gap between the two sets of conveyor chains for clamping the roots of the pepper vines. By setting the elastic parts, the elastic parts can be made of steel sheets with good elasticity, or rubber sheets, etc., which are convenient for hanging, squeezing, clamping and fixing the roots of the pepper vines. In addition, a tensioning wheel is also provided on the conveyor chain to facilitate the tightening of the chain.

[0026] 4. Through the setting of the vibration rod, the crank connecting rod structure drives the vibration rod to continuously vibrate the screen plate of the primary screen, so that the material falls in time and does not cause material accumulation. Through the setting of the rocker and eccentric wheel structure, the secondary screen swings continuously during operation, enhancing the material dropping effect and avoiding material accumulation.

[0027] 5. By adjusting the opening angle of the wind shield, it is convenient to adjust the intensity of the air outlet and thus adjust the impurity removal effect. The smaller and lighter pepper fruits sucked up can be blocked by the wind shield and fall onto the conveyor belt along the wind shield and the bottom wall of the impurity removal wind cover.

[0028] 6. When the roller screen is rolling, the stalks of the pepper fruits with stems will get stuck in the mesh of the screen and be lifted upward as the screen rotates. When they move above the conveyor belt in the screen, the stalks will swing under the weight of the pepper fruits, break away from the mesh of the screen, and fall onto the upper surface of the conveyor belt in the screen. Because the rear section of the conveyor belt in the screen extends out of the roller screen, the pepper fruits with stems can be transported to a pepper fruit collection container at a farther location. In addition, the roller screen can further separate fine impurities during the rolling conveying process, ensuring the cleanliness of the pepper fruits output. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the main structure of the pepper sorting production line of the present invention;

[0031] Figure 2 for Figure 1 A-direction view;

[0032] Figure 3 for Figure 2 BB cross-sectional view;

[0033] Figure 4 It is a schematic diagram of the front view structure of the claws of the pepper sorting production line of the present invention;

[0034] Description of the accompanying drawings: 1, separator; 101, separator frame; 102, first reduction motor; 103, conveying chain; 103a, elastic member; 104, claw roller; 104a, claw teeth; 104a-1, claw tooth head; 104a-2, claw tooth seat; 104a-3, mounting hole; 105, primary screen; 105a, vibration rod; 106, secondary leakage screen; 107, first fan; 108, second reduction motor; 109, first pulley group; 110, second pulley group; 111, third pulley group; 112, fourth pulley; 113, fifth pulley; 114, first tensioning wheel; 115. Second tensioning wheel; 116. Third tensioning wheel; 117. Fourth tensioning wheel; 118. Clamping plate; 119. Rocker; 2. Conveyor belt; 201. Horizontal conveyor belt; 201a. Collecting bucket; 202. Lifting conveyor belt; 203. Conveyor belt bracket; 204. Inclined hopper; 205. Third reduction motor; 3. Second fan; 301. De-duster hood; 302. Wind shield; 4. Fruit sorting machine; 401. Fruit sorting machine frame; 402. Rolling screen drum; 403. Roller; 404. Limiting wheel; 405. Conveyor belt in screen drum; 405a. Side guard; 406. Fourth reduction motor. DETAILED DESCRIPTION

[0035] The core of the present invention is to provide a pepper sorting production line and a sorting method thereof, which can replace manual sorting of peppers, efficiently and high-quality pick pepper fruits from pepper vines, and separate debris.

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, unless otherwise specified, the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "top" and "bottom" are based on the directions or positional relationships shown in the accompanying drawings, and are merely for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific direction or specific orientation structure that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0038] Please refer to the attached Figures 1 to 4 , Figure 1 This is a schematic diagram of the main structure of the pepper sorting production line of the present invention; Figure 2 for Figure 1 A-direction view; Figure 3 for Figure 2 BB cross-sectional view; Figure 4 It is a schematic diagram of the front view structure of the claws of the pepper sorting production line of the present invention.

[0039] In a specific embodiment, a pepper sorting production line includes a separator 1, a conveyor belt 2 and a fruit sorter 4 which are connected in sequence from front to back, the separator 1 includes a separator frame 101, a hanging conveyor device for conveying pepper seedlings, a screening device and a power transmission system, the hanging conveyor device is arranged on the top of the separator frame 101, a pair of claw rollers 104 are arranged below the hanging conveyor device, the claw rollers 104 are provided with a plurality of claw teeth 104a for grabbing pepper fruits, and the claw rollers 104 are driven to rotate by the power transmission system; the screening device is arranged below the claw rollers 104, a horizontal conveyor belt 201 of the conveyor belt 2 is arranged below the screening device, and the lifting conveyor belt 202 of the conveyor belt 2 is obliquely arranged behind the separator 1; the output end of the lifting conveyor belt 202 is connected to the rolling screen drum 402 of the fruit sorter 4 through the inclined hopper 204, and the outlet end of the rolling screen drum 402 is provided with a collection container for pepper fruits.

[0040] In the present invention, during the transmission of the inverted pepper vines on the hanging conveyor device, the claw roller 104 continuously grabs the pepper fruits, which are then screened by the screening device in turn and transported to the fruit sorting machine 4 by the conveyor belt 2. The pepper fruits are further separated and then enter the corresponding pepper fruit collection container. This can replace manual sorting of peppers, efficiently and high-quality pick pepper fruits from pepper vines, and separate debris.

[0041] In a specific implementation of this case, if Figure 1 , Figure 2 and Figure 4As shown, the claw teeth 104a specifically adopt elastic teeth with certain flexibility, and the claw teeth 104a include a claw tooth head 104a-1 and a claw tooth seat 104a-2. The claw tooth head 104a-1 is arc-shaped as a whole and the bottom is connected to the claw tooth seat 104a-2. The claw tooth seat 104a-2 is provided with a mounting hole 104a-3 for mounting. The roots of a plurality of claw teeth 104a are arranged on the outer cylindrical surface of the claw roller 104 according to a spiral line. By adopting arc-shaped flexible claw teeth 104a and installing a plurality of claw teeth 104a according to the arrangement of the spiral line, it is convenient to grasp the pepper fruit on the pepper vine without causing the pepper fruit to be crushed. By matching the spiral grasping with the conveying speed of the hanging conveying device, a better fruit picking effect can be obtained.

[0042] In a specific implementation of this case, if Figure 1 and 2 As shown, the hanging conveying device includes two sets of conveying chains 103 symmetrically arranged at the middle position of the top of the separator frame 101. The two sets of conveying chains 103 are tilted and arranged with the front lower and the rear higher. A gap for clamping the root of the pepper vine is left between the two sets of conveying chains 103, and the gap can be adjusted. One set of conveying chains 103 is driven by the first reduction motor 102 through the split gear drive sprocket. The back of the clamping side chain of the conveying chain 103 is provided with a clamping plate 118 to prevent the chain from loosening. The outer surface of the conveying chain 103 is connected with an elastic member 103a. The conveying chain 103 is tilted and arranged with the front lower and the rear higher, so that the inverted pepper vine is pulled downward by the gripping force of the claw teeth 104a during the conveying process. The tilted conveying chain 103 can lift the inverted pepper vine so that the main part of the pepper vine is always in the best gripping position relative to the claw roller 104. By setting the clamping plate 118 made of nylon material, it is ensured that the soft conveying chain 103 can also provide sufficient gripping force to clamp the root of the pepper vine in the middle position. By setting an oblong hole on the mounting plate of the driven conveying chain 103, it is convenient to adjust the gap between the two sets of conveying chains 103 for clamping the root of the pepper vine. By setting the elastic member 103a, the elastic member 103a can be a steel sheet with good elasticity, or a rubber sheet, etc., which is convenient for hanging, squeezing, clamping and fixing the root of the pepper vine. In addition, a tensioning wheel is also provided on the conveying chain 103 to facilitate the tensioning of the chain.

[0043] In a specific implementation of this case, if Figure 1 and 2As shown, the screening device includes a primary screen 105, a secondary screen 106 and a first fan 107. The primary screen 105 includes two symmetrical screen plates and are respectively tilted and arranged directly below a pair of claw rollers 104. A material leakage gap is arranged between the two screen plates of the two primary screens 105. The pepper fruits and their debris removed by the claw rollers 104 first fall onto the screen plates of the primary screen 105 and flow down along the material leakage gap. A secondary screen 106 is arranged below the material leakage gap. The secondary screen 106 is composed of a plurality of screen rods tilted and arranged at a high position on the top and a low position on the bottom. The fruit leakage gaps between the screen rods are arranged densely on the top and sparsely on the bottom. The first fan 107 is located below the primary screen 105 and on the opposite side of the secondary screen 106. The air outlet of the first fan 107 faces the upper part of the secondary screen 106. The first fan 107 blows away the lighter branches and leaves. The first fan 107 is driven by the power transmission system. When the pepper fruits slide down the secondary sieve 106 , they fall onto the horizontal conveyor belt 201 of the conveyor belt 2 .

[0044] Furthermore, the lower surface of the primary screen 105 is connected with a vibration rod 105a, and the other end of the vibration rod 105a is connected to the main shaft of the fourth pulley 112 of the power transmission system through a crank connecting rod structure; the crossbeam at the bottom of the secondary screen 106 is connected to the rocker 119 through a pin rotation, and the other end of the rocker 119 is connected to the hanging plate of the frame through a pin rotation, and the top of the secondary screen 106 is connected to the main shaft of the first pulley group 109 of the power transmission system through an eccentric wheel structure. The pin rotation connection here uses a polyurethane sleeve to achieve a wear-resistant and shock-resistant technical effect. Through the setting of the vibration rod 105a, the crank connecting rod structure drives the vibration rod 105a to continuously vibrate the screen plate of the primary screen 105, so that the material falls in time and does not cause material accumulation. Through the setting of the rocker 119 and the eccentric wheel structure, the secondary screen 106 swings continuously during operation, enhancing the material dropping effect and avoiding the accumulation of materials.

[0045] Here, the power transmission system of the separator 1 of this case is further described, such as Figure 2 As shown, the second reduction motor 108 is located at the lower part of one side of the separator 1, and is connected to the first pulley group 109 through a belt. The first pulley group 109 drives the second pulley group 110 and the third pulley group 111 to rotate through a long belt, and the long belt is tightened and limited by the first tensioning wheel 114, the second tensioning wheel 115, the third tensioning wheel 116 and the fourth tensioning wheel 117 respectively arranged on the separator frame 101, and the second pulley group 110 and the third pulley group 111 respectively drive the two claw rollers 104 to rotate towards each other. The second pulley group 110 and the third pulley group 111 also respectively drive the two fourth pulleys 112 located on both sides of the separator frame 101 to rotate. The first pulley group 109 also drives the fifth pulley 113 to rotate through a belt to provide power for the rotor of the first fan 107.

[0046] In a specific implementation of this case, if Figure 1 and 2 As shown, the horizontal conveyor belt 201 of the conveyor belt 2 is arranged at the lower part of the secondary sieve 106, and a collecting bucket 201a is arranged between the horizontal conveyor belt 201 and the secondary sieve 106, and the collecting bucket 201a is fixedly connected to the separator frame 101. The setting of the collecting bucket 201a facilitates the collection of the pepper fruits that have fallen.

[0047] In a specific implementation of this case, if Figure 1 As shown, a second fan 3 is arranged on the lifting conveyor belt 202 of the conveyor belt 2. The second fan 3 is fixedly connected to the conveyor belt bracket 203 of the conveyor belt 2 through a support plate. The air outlet of the second fan 3 is connected to a dust removal wind hood 301. The negative pressure air suction port of the dust removal wind hood 301 is arranged on the upper surface of the lifting conveyor belt 202.

[0048] Furthermore, the outer surface of the conveyor belt of the conveyor belt 2 is provided with anti-skid patterns to prevent the material from slipping; a windshield 302 is provided inside the outlet end of the impurity removal wind cover 301, and the opening angle of the windshield 302 can be adjusted. The conveyor belt 2 is driven by a third reduction motor 205 installed on the conveyor belt bracket 203 through a belt. By adjusting the opening angle of the windshield 302, it is convenient to adjust the intensity of the air outlet and thus adjust the impurity removal effect, and the smaller and lighter pepper fruits sucked up can be blocked by the windshield 302 and fall onto the conveyor belt 2 along the windshield 302 and the bottom wall of the impurity removal wind cover 301.

[0049] In a specific implementation of this case, if Figure 1 and 3 As shown, the fruit sorting machine 4 also includes a fruit sorting machine frame 401, a conveyor belt 405 in a screen drum and a fourth reduction motor 406. The rolling screen drum 402 is tilted with the front higher and the rear lower, and is mounted on the separator frame 401 through two pairs of rollers 403 at both ends, and the two end faces of the rolling screen drum 402 are axially positioned by limiting wheels 404 arranged on the separator frame 401; the conveyor belt 405 in the screen drum is mounted on the separator frame 401 through a support plate, and the main body is located inside the rolling screen drum 402, and the rear section of the conveyor belt 405 in the screen drum extends out of the rolling screen drum 402; the fourth reduction motor 406 is arranged on the separator frame 401, located at the lower front end of the fruit sorting machine 4, and the two output shaft ends of the fourth reduction motor 406 respectively drive the conveying rollers of the conveyor belt 405 in the screen drum and the rolling screen drum 402 to rotate through belt transmission.

[0050] During the rolling process of the rolling screen drum 402, the handle of the pepper fruit with a handle will get stuck in the mesh of the screen, and will be lifted upward as the screen drum rotates. When it runs above the conveyor belt 405 in the screen drum, the handle will swing under the influence of the deadweight of the pepper fruit, break away from the mesh of the screen, and fall into the upper surface of the conveyor belt 405 in the screen drum. In addition, the conveyor belt 405 in the screen drum is provided with retaining edges 405a on both sides to prevent the side of the material from slipping. The rear section of the conveyor belt 405 in the screen drum extends out of the rolling screen drum 402, which can transport the pepper fruit with a handle to a pepper fruit collection container at a farther position. In addition, during the rolling conveying process, the rolling screen drum 402 can further separate fine impurities, thereby ensuring the cleanliness of the output of the pepper fruit.

[0051] Of course, the embodiment of the present invention also includes an electric control box set beside the production line to respectively control the first reduction motor 102, the second reduction motor 108, the third reduction motor 205 and the fourth reduction motor 406. A corresponding electrical control panel and electrical protection device are also provided.

[0052] The corresponding embodiment of the present invention further provides a pepper sorting method, comprising: using any of the above-mentioned pepper sorting production lines to perform pepper sorting and impurity removal operations, and the specific operation steps include the following steps:

[0053] The first step is loading. After the equipment is started, the whole pepper vines are continuously hung upside down at the entrance of the hanging conveying device at the front front of the separator 1 and continuously conveyed backwards.

[0054] The second step is to pick the fruits. A pair of claw rollers 104 rotate towards each other, and the claw teeth 104a continuously scrape the pepper fruits off the pepper vines.

[0055] The third step is screening. The screening device further separates the pepper fruits, branches and leaves and part of the straw. The primary screen 105 is driven by the vibration rod 105a to vibrate continuously. The broken pepper branches and leaves falling on its screen plate fall through the screen holes and are blown away from the separator 1 by the first fan 107. The pepper fruits and some branches and leaves that are difficult to separate fall along the gap between the two screen plates of the primary screen 105 to the secondary sieve 106. During the sliding process, the pepper fruits fall to the bottom and the large pepper branches slide along the secondary sieve 106 to the outside of the separator 1.

[0056] The fourth step is to transport and remove impurities. The screened pepper fruits are transported to the fruit sorting machine 4 of the next process through the conveyor belt 2. When passing through the negative pressure suction port of the impurity removal hood 301 during the transportation process, rotten leaves and other impurities are further removed;

[0057] The fifth step is fruit separation. When the pepper fruits pass through the fruit sorting machine 4, the roller screen drum 402 lifts the pepper fruits with stems to the conveyor belt 405 inside the screen drum for separate transmission and output, and the pepper fruits without stems are output to the pepper fruit collection container through the outlet end of the roller screen drum 402.

[0058] The pepper sorting production line of the present invention can replace manual pepper sorting, reduce the health hazards to pepper sorting workers, improve the automation and mechanization of pepper picking and sorting operations, and also improve the sorting efficiency and operation quality.

[0059] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A pepper sorting production line, characterized by: The invention comprises a separator (1), a conveyor belt (2) and a fruit sorting machine (4) which are sequentially connected from front to back; the separator (1) comprises a separator frame (101), a hanging conveying device for conveying pepper seedlings, a screening device and a power transmission system; the hanging conveying device is arranged on the top of the separator frame (101); a pair of claw rollers (104) are arranged below the hanging conveying device; the claw rollers (104) are provided with a plurality of claw teeth (104a) for picking up pepper fruits; the claw rollers (104) are connected by the The power transmission system drives the rotation; a screening device is arranged below the claw roller (104); a horizontal conveyor belt (201) of the conveyor belt (2) is arranged below the screening device; a lifting conveyor belt (202) of the conveyor belt (2) is arranged obliquely behind the separator (1); the output end of the lifting conveyor belt (202) is connected to the rolling screen drum (402) of the fruit sorting machine (4) through an inclined hopper (204); a collection container for pepper fruits is arranged at the outlet end of the rolling screen drum (402); The claw teeth (104a) are specifically spring teeth with a certain flexibility, and the roots of a plurality of the claw teeth (104a) are arranged on the outer cylindrical surface of the claw roller (104) according to a spiral line; The hanging conveying device comprises two sets of conveying chains (103) symmetrically arranged at the middle position of the top of the separator frame (101); the two sets of conveying chains (103) are arranged tilted with the front lower and the rear higher; a gap for clamping the roots of the pepper vines is left between the two sets of conveying chains (103), and the gap can be adjusted; one set of conveying chains (103) is driven by the first reduction motor (102) through a split gear driving sprocket; a clamping plate (118) is arranged on the back of the clamping side chain of the conveying chain (103) to prevent the chain from loosening; and an elastic member (103a) is connected to the outer surface of the conveying chain (103); The screening device comprises a primary screen (105), a secondary screen (106) and a first fan (107); the primary screen (105) comprises two symmetrical screen plates which are respectively arranged obliquely directly below a pair of claw rollers (104); a material leakage gap is arranged between the two screen plates of the primary screen (105); a secondary screen (106) is arranged below the material leakage gap; the secondary screen (106) is composed of a plurality of screen rods which are arranged obliquely with the upper portion being higher than the lower portion; the gaps between the screen rods are arranged densely at the top and sparsely at the bottom; the first fan (107) is located below the primary screen (105) and on the opposite side of the secondary screen (106); the air outlet of the first fan (107) faces the upper portion of the secondary screen (106); the first fan (107) is driven by the power transmission system.

2. The pepper sorting production line according to claim 1 is characterized in that: A vibrating rod (105a) is connected to the lower surface of the primary screen (105), and the other end of the vibrating rod (105a) is connected to the main shaft of the fourth pulley (112) of the power transmission system through a crank-connecting rod structure; the crossbeam at the bottom of the secondary screen (106) is rotatably connected to a rocker (119) through a pin shaft, and the other end of the rocker (119) is rotatably connected to the hanging plate of the frame through a pin shaft, and the top end of the secondary screen (106) is connected to the main shaft of the first pulley group (109) of the power transmission system through an eccentric wheel structure.

3. The pepper sorting production line according to claim 1 is characterized in that: The horizontal conveyor belt (201) of the conveyor belt (2) is arranged at the lower part of the secondary screen (106), and a collecting bucket (201a) is arranged between the horizontal conveyor belt (201) and the secondary screen (106), and the collecting bucket (201a) is fixedly connected to the separator frame (101).

4. The pepper sorting production line according to claim 1 is characterized in that: A second fan (3) is arranged on the upper surface of the lifting conveyor belt (202) of the conveyor belt (2); the second fan (3) is fixedly connected to the conveyor belt bracket (203) of the conveyor belt (2) through a support plate; the air outlet of the second fan (3) is connected to a dust removal hood (301); and the negative pressure air suction port of the dust removal hood (301) is arranged on the upper surface of the lifting conveyor belt (202).

5. The pepper sorting production line according to claim 4 is characterized in that: The outer surface of the conveyor belt of the conveyor belt (2) is provided with anti-skid patterns to prevent materials from slipping; the outlet end of the impurity removal wind cover (301) is provided with a wind shield (302), and the opening angle of the wind shield (302) can be adjusted.

6. The pepper sorting production line according to claim 1 is characterized by: The fruit sorting machine (4) further comprises a fruit sorting machine frame (401), a conveyor belt (405) in a screen drum, and a fourth reduction motor (406); the rolling screen drum (402) is arranged with a high front and a low rear, and is mounted on the separator frame (401) via two pairs of rollers (403) at both ends; and the two end surfaces of the rolling screen drum (402) are axially positioned respectively via limiting wheels (404) arranged on the separator frame (401); the conveyor belt (405) in the screen drum is arranged via a support plate frame It is arranged on the separator frame (401), and its main body is located inside the roller screen drum (402), and the rear section of the conveyor belt (405) in the screen drum extends out of the roller screen drum (402); the fourth reduction motor (406) is arranged on the separator frame (401), and is located at the lower front end of the fruit sorting machine (4), and the two output shaft ends of the fourth reduction motor (406) respectively drive the conveyor rollers of the conveyor belt (405) in the screen drum and the roller screen drum (402) to rotate through belt transmission.

7. A pepper sorting method, characterized in that: The chili sorting production line according to any one of claims 1 to 6 is used to sort chili, and the specific operation steps include the following steps: The first step is loading. After the equipment is started, the whole pepper vine is hung upside down at the entrance of the hanging conveying device in front of the separator (1) and continuously conveyed backwards; The second step is picking the fruits, wherein the pair of claw rollers (104) rotate towards each other, and the claw teeth (104a) continuously scrape the pepper fruits off the pepper vines; The third step is screening, wherein the screening device further separates the pepper fruits from the branches and leaves and part of the straw; The fourth step is conveying and removing impurities. The screened pepper fruits are conveyed to the fruit sorting machine (4) of the next process through the conveyor belt (2). During the conveying process, impurities such as rotten leaves are further removed when the fruits pass through the negative pressure suction port of the impurity removal hood (301); The fifth step is to separate the fruits. When the pepper fruits pass through the fruit sorting machine (4), the roller screen (402) lifts the pepper fruits with stems onto the conveyor belt (405) inside the screen for separate transmission and output, while the pepper fruits without stems are output to the pepper fruit collection container through the outlet end of the roller screen (402).

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