A macadamia nut conveying apparatus having a singulating mechanism

Abstract

The application discloses a macadamia nut conveying device with a sorting mechanism and relates to the technical field of fruit sorting and conveying. The application discloses a macadamia nut conveying device with a sorting mechanism and relates to the technical field of fruit sorting and conveying. The application discloses a macadamia nut conveying device with a sorting mechanism and relates to the technical field of fruit sorting and conveying. The application discloses a macadamia nut conveying device with a sorting mechanism and relates to the technical field of fruit sorting and conveying. The application discloses a macadamia nut conveying device with a sorting mechanism and relates to the technical field of fruit sorting and conveying. The application discloses a macadamia nut conveying device with a sorting mechanism and relates to the technical field of fruit sorting and conveying. The application discloses a macadamia nut conveying device with a sorting mechanism and relates to the technical field of fruit sorting and conveying. The application discloses a macadamia nut conveying device with a sorting mechanism and relates to the technical field of fruit sorting and conveying. The application discloses a macadamia nut conveying device with a sorting mechanism and relates to the technical field of fruit sorting and conveying. The application discloses a macadamia nut conveying device with a sorting mechanism and relates to

Description

Technical Field

[0001] This invention relates to the field of fruit sorting and conveying technology, and specifically to a macadamia nut conveying device with a sorting mechanism. Background Technology

[0002] After harvesting, macadamia nuts need to be cleaned immediately to remove branches, leaves, and other impurities. They are then transported short distances to the processing center via conveyor belt or agricultural vehicle. At the processing plant, high-pressure water guns or drum washing machines are used to thoroughly remove mud and sand from the green husks. The nuts are then conveyed to the peeling process. After the green husks are removed, the shelled nuts undergo a second cleaning and pre-drying process using water flow or vibrating screen channels. They then enter the sorting stage, typically using multi-layer vibrating screens to classify by particle size. Simultaneously, light impurities are separated by high-speed airflow. Moldy, damaged, and other defective nuts are then removed by color sorters or manual assembly lines. Qualified shelled nuts are dried and then placed in a temporary storage warehouse. Finally, they are loaded into breathable woven bags or turnover boxes via conveyor belt or pneumatic conveying system for subsequent shelling processing or storage. Throughout the process, attention is paid to preventing mechanical damage and controlling mold growth. Existing conveying devices are ineffective at sorting macadamia nuts and the nuts are easily damaged by vibration. Therefore, we propose a macadamia nut conveying device with a sorting mechanism. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a macadamia nut conveying device with a sorting mechanism, comprising: A base plate, the top of which is fixedly connected to a bracket; A conveying mechanism, which is fixedly connected to the inner side of the support; The conveying mechanism includes: A conveyor belt is provided at intervals in the support frame and is slidably connected to the inner side of the support frame. The conveyor belt surface is provided with sorting holes, and there are several sorting holes, which are evenly distributed on the surface of the conveyor belt. A drive assembly is connected to the inner side of the conveyor belt and is fixedly connected to the outer side of the support. The sorting and unloading assembly is located at the intervals of the conveyor belt and is inclined. The sorting and unloading assembly is fixedly connected to the top of the base plate. Macadamia nuts are placed on the surface of the conveyor belt, and the drive assembly is started. The output end of the drive assembly drives the conveyor belt to transport the macadamia nuts. Macadamia nuts smaller than the sorting holes pass through the conveyor belt and then enter the sorting and feeding assembly, which finally achieves sorting. The sorting and feeding assembly is inclined and set inside the conveyor belt, and can complete the feeding and sorting under the action of the macadamia nuts' own weight.

[0004] Furthermore, the conveyor belts are arranged in a stepped manner along the conveying direction. Each of the conveyor belts has sorting holes on its surface, and the diameter of the sorting holes gradually decreases along the conveying direction. This gradual decrease in the size of the sorting holes on the conveyor belts ensures that the smallest macadamia nuts enter the sorting and feeding assembly first, followed by macadamia nuts of gradually increasing size, thus achieving graded screening. The stepped distribution of the conveyor belts creates a vertical height difference between adjacent conveyor belts. When macadamia nuts move from one conveyor belt to the next, the vertical height difference causes the nuts to scatter and tumble during their fall, resulting in the macadamia nuts being evenly spread on the conveyor belt surface and improving the screening effect.

[0005] Furthermore, baffles are provided at the intervals between adjacent conveyor belts. The side of the baffle closest to the bottom plate is inclined in the conveying direction. The two sides of the baffle are slidably connected to the outer sides of the two conveyor belts respectively. A central rod is rotatably connected to the center of the baffle by a torsion spring. The end of the central rod is fixedly connected to the inner side of the bracket. The baffles can fill the gaps between adjacent conveyor belts and prevent irregularly shaped macadamia nuts from being bounced into the gaps when they hit the conveyor belts, ensuring that each macadamia nut is screened through the sorting holes.

[0006] Furthermore, a plurality of protruding strips are fixedly connected to the outer side of the conveyor belt. These protruding strips are evenly distributed on the surface of the conveyor belt and are positioned at intervals between adjacent sorting holes. As the conveyor belt moves, the protruding strips contact the baffles, causing the conveyor belt to move. Baffles are also positioned at the intervals between the conveyor belts, with each baffle slidably connected to two conveyor belts on its sides. The adjacent conveyor belts are arranged in a stepped pattern, meaning that a baffle is located at the top and bottom of each end of the conveyor belt. As the conveyor belt moves, one end moves upward and the other downward, causing the conveyor belt to oscillate and move the sorting holes. The system is designed to improve sorting efficiency by reducing bumps and jolts. The baffle is connected to the center rod via a torsion spring. When the force exerted by the protruding strip on the baffle exceeds a predetermined threshold, the baffle rotates. After the protruding strip passes, the baffle resets under the spring's elastic force, thus not affecting the conveyor belt's transmission. Furthermore, when the protruding strip presses against the baffle, the initial elastic force of the torsion spring provides resistance, preventing the baffle from rotating easily and ensuring sufficient swaying of the conveyor belt, further improving sorting efficiency. When the pressing force of the protruding strip exceeds the preset elastic force threshold of the torsion spring, the baffle rotates. This process acts as a buffer, preventing excessive swaying or mechanical damage to the conveyor belt due to continuous obstruction.

[0007] Furthermore, the drive assembly includes a drive box, and several drive boxes are provided, with the number of drive boxes corresponding to the number of conveyor belts. The drive boxes are located outside the support frame. Drive rods are symmetrically arranged on the side of the drive box near the conveyor belt, and the drive rods are fixedly connected to the output end of the drive box. Two drive rods are respectively located at both ends of the conveyor belt, and the drive rods are driven to the inner side of the conveyor belt. When the drive box is started, the output end of the drive box drives the drive rods to rotate, thereby driving the conveyor belt to transmit.

[0008] Furthermore, buffer rings are provided on both sides of the conveyor belt. The inner side of the buffer ring is rotatably connected to the surface of the drive rod, and the outer side of the buffer ring is fixedly connected to the inner side of the bracket. The two ends of the buffer ring are recessed inward, and the buffer ring is hollow. The buffer ring is made of elastic material. When the conveyor belt does not swing, the drive rod rotates inside the buffer ring. When the conveyor belt swings, the drive rod will be squeezed against the inner wall of the buffer ring due to the displacement of the conveyor belt. The recessed part of the buffer ring provides a larger buffer space through deformation, so that the drive rod has a more flexible range of motion during the swing, avoiding conveyor belt jamming or drive rod deformation due to hard collision. The hollow elastic material absorbs the impact force generated by the swing of the drive rod, converting mechanical energy into elastic potential energy, effectively reducing the impact of swing on the overall structure of the equipment.

[0009] Furthermore, a limiting frame is fixedly connected to the side of the drive box near the support. A ball joint rod is slidably connected to the inner side of the limiting frame, and the ball joint rod is located in the middle of the limiting frame. The side of the ball joint rod away from the drive box is fixedly connected to the outer side of the support. When the conveyor belt swings, it drives the drive rod to swing, which in turn drives the drive box to swing, and then drives the limiting frame to swing. The limiting frame rotates outside the ball joint rod. The ball joint limiting structure formed by the limiting frame and the ball joint rod ensures the stability of the drive box while giving it flexible swing freedom. When the conveyor belt swings due to the action of the convex strip and the baffle, the spherical surface of the ball joint rod forms a multi-point contact sliding constraint with the inner wall of the limiting frame. This not only adjusts the posture according to the swing direction of the conveyor belt, but also constrains the conveyor belt through the boundary restriction of the limiting frame, allowing the conveyor belt to move up and down and deflect horizontally in three-dimensional space. This causes the conveyor belt to produce regular undulations, causing the macadamia nuts to jump under the dual action of gravity and inertia, allowing the fruits to readjust their posture and greatly increasing the probability of them passing through the corresponding aperture.

[0010] Furthermore, a spring is fixedly connected to the surface of the ball joint rod. The springs are symmetrically arranged around the ball joint rod. The ends of the two springs away from the ball joint rod are fixedly connected to the upper and lower ends of the inner side of the limiting frame, respectively. When the drive box is offset, the limiting frame slides along the spherical surface of the ball joint rod. During this process, the springs on both sides undergo elastic deformation simultaneously. The spring in the offset direction is stretched, while the spring in the opposite direction is compressed. The rotation of the limiting frame causes the two springs to bend, converting the impact force generated by the swing into the elastic potential energy of the springs, effectively reducing equipment wear and noise.

[0011] Furthermore, the sorting and unloading assembly includes an elastic frame, which is fixedly connected to the top of the base plate and located on the side of the conveyor belt away from the drive box. A stepped block is fixedly connected to the inner side of the elastic frame. A unloading frame is fixedly connected to the side of the elastic frame away from the base plate. Several unloading frames are provided, with the number corresponding to the number of conveyor belts. One end of each unloading frame extends into the interior of the conveyor belt, and the end of the unloading frame located inside the conveyor belt is inclined towards the side away from the base plate. The surface of the unloading frame is slidably connected to the surface of the drive rod. The outer side of the buffer ring is fixedly connected to the surface of the unloading frame. Macadamia nuts pass through the sorting hole and subsequently fall onto the inclined unloading frame surface. The nuts then roll down along the feeding frame, which is set with the corresponding feeding frame to achieve graded feeding. When the drive rod swings with the conveyor belt, the feeding frame that is slidably connected to it shakes synchronously. This swinging action, guided by the inclined surface of the feeding frame, causes the macadamia nuts to roll irregularly during the descent, effectively preventing the nuts from being piled up or jammed, thus avoiding poor feeding. The elastic material and hollow structure of the buffer ring and elastic frame absorb the impact of the drive rod swinging while providing flexible support for the feeding frame, preventing the nuts from being damaged by collision due to violent shaking. In addition, the feeding frame swings with the drive rod, that is, it swings synchronously with the conveyor belt, ensuring that nuts of different sizes can fall accurately into the corresponding grading area.

[0012] Furthermore, a corrugated plate is fixedly connected to the bottom of the inner side of the feeding frame, and several corrugated plates are evenly distributed. Several support plates are provided directly below each feeding frame. The support plates are fixedly connected to the side of the stepped block away from the bottom plate, and the side of the support plate away from the stepped block is fixedly connected to the inner side of the elastic frame. The support plates are made of elastic material, with both sides recessed inwards and hollow. The corrugated plates allow the fruit to disperse along the undulating surface of the corrugated plates as it slides down the feeding frame. Effectively preventing fruits from accumulating in the feeding frame due to a single sliding path, while reducing collisions between fruits, the elastic support plate, with its inwardly concave hollow structure, buffers the vibrations transmitted by the feeding frame. When the drive rod causes the feeding frame to swing, or when the fruit rapidly impacts the bottom of the feeding frame, the elastic material of the support plate and the hollow cavity deform together, converting the vibration energy into elastic potential energy. This reduces the vibration amplitude of the feeding frame, preventing the fruit from being thrown out of the feeding area due to excessive vibration, and also avoids rigid collisions between the fruit and the feeding frame that could damage the outer shell.

[0013] The beneficial effects of this invention are as follows: 1. This invention, by setting up a conveying mechanism with several stepped conveyor belts, creates a vertical height between adjacent conveyor belts. When macadamia nuts move from one conveyor belt to the next, the drop caused by the vertical height difference results in a certain amount of scattering and tumbling of the macadamia nuts during their fall, allowing them to be evenly spread on the surface of the conveyor belts and improving the screening effect.

[0014] 2. This invention, by setting baffles, can fill the gaps between adjacent conveyor belts, preventing irregularly shaped macadamia nuts from being bounced into the gaps when they hit the conveyor belts and bounce back. This ensures that every macadamia nut passes through the sorting holes. Baffles are set at the intervals between several conveyor belts, and the two sides of the baffles are slidably connected to two conveyor belts respectively. The adjacent conveyor belts are distributed in a stepped manner, meaning that there is a baffle on the upper and lower sides of each end of the conveyor belt. As the conveyor belt moves, one end moves upward and the other end moves downward, causing the conveyor belt to swing and the macadamia nuts to bounce, thus achieving a better sorting effect.

[0015] 3. By setting a buffer ring, when the conveyor belt swings, the drive rod will be squeezed against the inner wall of the buffer ring due to the displacement of the conveyor belt. The concave part of the buffer ring provides a larger buffer space through deformation, so that the drive rod has a more flexible range of motion during the swing. This avoids the conveyor belt from jamming or the drive rod from deforming due to hard collision. The hollow elastic material absorbs the impact force generated by the swing of the drive rod, converting mechanical energy into elastic potential energy, effectively reducing the impact of the swing on the overall structure of the equipment.

[0016] 4. This invention, by setting up a drive assembly, a ball joint limiting structure consisting of a limiting frame and a ball joint rod, ensures the stability of the drive box while giving it flexible swing freedom. When the conveyor belt swings due to the action of the convex strip and the baffle, the spherical surface of the ball joint rod forms a multi-point contact sliding constraint with the inner wall of the limiting frame. This not only adjusts the posture according to the swing direction of the conveyor belt, but also constrains the conveyor belt through the boundary restriction of the limiting frame, allowing the conveyor belt to move up and down and deflect horizontally in three-dimensional space. This causes the conveyor belt to produce regular undulations, causing the macadamia nuts to jump under the dual action of gravity and inertia, allowing the fruits to readjust their posture and greatly increasing the probability of them passing through the corresponding aperture.

[0017] 5. This invention, by setting up a sorting and feeding component, causes the feeding frame, which is slidably connected to the drive rod, to shake synchronously when the drive rod swings with the conveyor belt. This swinging, guided by the inclined surface of the feeding frame, causes the macadamia nuts to roll irregularly during their descent, effectively preventing the nuts from being stuck due to stacking or jamming. The elastic material and hollow structure of the buffer ring and elastic frame absorb the impact of the drive rod's swing while providing flexible support for the feeding frame, preventing the nuts from being damaged by collision due to violent shaking. In addition, the feeding frame swings with the drive rod, that is, swings synchronously with the conveyor belt, ensuring that nuts of different sizes can accurately fall into the corresponding grading area.

[0018] 5. By setting up a corrugated plate, the fruit is dispersed along the undulating surface of the corrugated plate as it slides down the feeding frame, effectively preventing the fruit from accumulating in the feeding frame due to a single sliding path. At the same time, it reduces the collision between fruits. The elastic support plate, with its inwardly concave hollow structure, buffers the vibration transmitted by the feeding frame. When the drive rod causes the feeding frame to swing, or when the fruit quickly impacts the bottom of the feeding frame, the elastic material of the support plate and the hollow cavity deform together, converting the vibration energy into elastic potential energy. This reduces the vibration amplitude of the feeding frame, prevents the fruit from being thrown out of the feeding area due to excessive vibration, and avoids the rigid collision between the fruit and the feeding frame, which would damage the outer shell. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the macadamia nut conveying device with a sorting mechanism according to the present invention; Figure 2 This is a schematic diagram from another perspective of the macadamia nut conveying device with a sorting mechanism according to the present invention. Figure 3 This is a schematic diagram of the conveying mechanism of the present invention; Figure 4 This is a schematic diagram of the conveyor belt structure of the present invention; Figure 5 This is a schematic diagram of the baffle structure of the present invention; Figure 6 This is a schematic diagram of the drive component structure of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the buffer ring of the present invention; Figure 8 This is a schematic diagram of the limiting frame structure of the present invention; Figure 9 This is a schematic diagram of the feeding assembly structure of the present invention; Figure 10 This is a schematic diagram of the cross-sectional structure of the elastic frame of the present invention.

[0020] In the diagram: 1. Base plate; 2. Support frame; 3. Conveying mechanism; 31. Conveyor belt; 32. Drive assembly; 321. Drive box; 322. Drive rod; 323. Buffer ring; 324. Limiting frame; 325. Ball head rod; 326. Spring; 33. Sorting and unloading assembly; 331. Unloading frame; 332. Elastic frame; 333. Step block; 334. Corrugated plate; 335. Support plate; 34. Sorting hole; 35. Protruding strip; 36. Baffle; 37. Center rod. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0022] Example 1, please refer to Figures 1-5 This invention relates to a macadamia nut conveying device with a sorting mechanism, comprising: Base plate 1, with bracket 2 fixedly connected to the top of base plate 1; Conveying mechanism 3 is fixedly connected to the inner side of support 2; The conveying mechanism 3 includes: The conveyor belt 31 is disposed at the interval of the support 2 and is slidably connected to the inner side of the support 2. The surface of the conveyor belt 31 is provided with sorting holes 34, and there are several sorting holes 34, which are evenly distributed on the surface of the conveyor belt 31. Drive assembly 32 is connected to the inner side of conveyor belt 31 for transmission, and drive assembly 32 is fixedly connected to the outer side of bracket 2. The sorting and unloading assembly 33 is located at the intervals of the conveyor belt 31 and is inclined. The sorting and unloading assembly 33 is fixedly connected to the top of the base plate 1. Macadamia nuts are placed on the surface of conveyor belt 31, and drive assembly 32 is started. The output end of drive assembly 32 drives conveyor belt 31 to transport macadamia nuts. Macadamia nuts smaller than sorting hole 34 pass through conveyor belt 31 and then enter sorting and feeding assembly 33 to finally achieve sorting. Sorting and feeding assembly 33 is inclinedly set inside conveyor belt 31 and can complete feeding and sorting under the action of macadamia nut's own weight.

[0023] Several conveyor belts 31 are provided, and these conveyor belts 31 are distributed in a stepped manner along the conveying direction. Each of the conveyor belts 31 has sorting holes 34 on its surface, and the diameter of the sorting holes 34 on the surface of the conveyor belts 31 gradually decreases along the conveying direction. The size of the sorting holes 34 on the conveyor belts 31 gradually decreases, so that the smallest macadamia nuts enter the sorting and feeding component 33 first, and the macadamia nuts that enter the sorting and feeding component 33 gradually increase in size, thus achieving graded screening. The stepped distribution of the conveyor belts 31 creates a vertical height between adjacent conveyor belts 31. When the macadamia nuts move from one conveyor belt 31 to the next, the drop caused by the vertical height difference causes the macadamia nuts to be scattered and tumbled during the fall, so that the macadamia nuts are evenly spread on the surface of the conveyor belts 31, improving the screening effect.

[0024] Each adjacent conveyor belt 31 is provided with a baffle 36. The side of the baffle 36 closest to the bottom plate 1 is inclined in the conveying direction. The two sides of the baffle 36 are slidably connected to the outer side of the two conveyor belts 31 respectively. A central rod 37 is rotatably connected to the center of the baffle 36 by a torsion spring. The end of the central rod 37 is fixedly connected to the inner side of the bracket 2. The baffle 36 can fill the gap between adjacent conveyor belts 31 and prevent irregularly shaped macadamia nuts from being bounced into the gap when they hit the conveyor belt 31 and bounce back, ensuring that each macadamia nut is screened by the sorting hole 34.

[0025] A plurality of protruding strips 35 are fixedly connected to the outer side of the conveyor belt 31. These protruding strips 35 are evenly distributed on the surface of the conveyor belt 31 and are positioned at intervals between adjacent sorting holes 34. As the conveyor belt 31 moves, the protruding strips 35 contact the baffles 36, causing the conveyor belt 31 to move. Baffles 36 are also positioned at intervals between the conveyor belts 31, with each baffle 36 slidably connected to two conveyor belts 31 on its sides. The adjacent conveyor belts 31 are arranged in a stepped pattern, meaning that a baffle 36 is located on the upper and lower sides of each end of the conveyor belt 31. As the conveyor belt 31 moves, one end moves upward and the other downward, causing the conveyor belt 31 to oscillate, thus driving the Hawaiian... The system is designed to prevent bumps and ensure better sorting results. Meanwhile, the baffle 36 is connected to the center rod 37 by a torsion spring. When the force exerted by the protrusion 35 on the baffle 36 exceeds a predetermined threshold, the baffle 36 rotates. After the protrusion 35 passes through, the baffle 36 resets under the elastic force of the torsion spring, thus not affecting the transmission of the conveyor belt 31. Furthermore, when the protrusion 35 presses against the baffle 36, the initial elastic force of the torsion spring provides a certain resistance, preventing the baffle 36 from rotating easily. This ensures that the conveyor belt 31 oscillates sufficiently, further improving sorting efficiency. When the pressing force of the protrusion 35 exceeds the preset elastic force threshold of the torsion spring, the baffle 36 rotates. This process acts as a buffer, preventing the conveyor belt 31 from excessive oscillation or mechanical damage due to continuous obstruction.

[0026] Example 2, please refer to Figures 1-10 The drive assembly 32 includes a drive box 321. Several drive boxes 321 are provided, and the number of drive boxes 321 corresponds to the number of conveyor belts 31. The drive boxes 321 are located outside the bracket 2. Drive rods 322 are symmetrically arranged on the side of the drive box 321 near the conveyor belt 31. The drive rods 322 are fixedly connected to the output end of the drive box 321. Two drive rods 322 are respectively located at both ends of the conveyor belt 31, and the drive rods 322 are connected to the inner side of the conveyor belt 31 for transmission. When the drive box 321 is started, the output end of the drive box 321 drives the drive rods 322 to rotate, thereby driving the conveyor belt 31 to transmit.

[0027] Both sides of the conveyor belt 31 are provided with buffer rings 323. The inner side of the buffer ring 323 is rotatably connected to the surface of the drive rod 322, and the outer side of the buffer ring 323 is fixedly connected to the inner side of the bracket 2. The two ends of the buffer ring 323 are recessed inward, and the buffer ring 323 is hollow and made of elastic material. When the conveyor belt 31 does not swing, the drive rod 322 rotates inside the buffer ring 323. When the conveyor belt 31 swings, the drive rod 322 will be squeezed against the inner wall of the buffer ring 323 due to the displacement of the conveyor belt 31. The recessed part of the buffer ring 323 provides a larger buffer space through deformation, so that the drive rod 322 has a more flexible range of motion during the swing, avoiding the conveyor belt 31 from jamming or the drive rod 322 from deformation due to hard collision. The hollow elastic material absorbs the impact force generated by the swing of the drive rod 322, converting mechanical energy into elastic potential energy, effectively reducing the impact of swing on the overall structure of the equipment.

[0028] A limiting frame 324 is fixedly connected to the side of the drive box 321 near the bracket 2. A ball joint rod 325 is slidably connected to the inner side of the limiting frame 324, and the ball joint rod 325 is located in the middle of the limiting frame 324. The side of the ball joint rod 325 away from the drive box 321 is fixedly connected to the outer side of the bracket 2. When the conveyor belt 31 swings, it drives the drive rod 322 to swing, which in turn drives the drive box 321 to swing, and then drives the limiting frame 324 to swing. The limiting frame 324 rotates outside the ball joint rod 325. The limiting frame 324 and the ball joint rod 325 are connected. The ball joint limiting structure composed of 25 ensures the stability of the drive box 321 while giving it flexible swing freedom. When the conveyor belt 31 swings due to the action of the protrusion 35 and the baffle 36, the spherical surface of the ball head rod 325 forms a multi-point contact sliding constraint with the inner wall of the limiting frame 324. It can adjust its posture according to the swing direction of the conveyor belt 31, and constrain the conveyor belt 31 through the boundary restriction of the limiting frame 324. This allows the conveyor belt 31 to move up and down and deflect horizontally in three-dimensional space, so that the conveyor belt 31 produces regular undulations. Under the dual action of gravity and inertia, the macadamia nut jumps and readjusts its posture, greatly increasing the probability of it passing through the corresponding aperture.

[0029] Springs 326 are fixedly connected to the surface of the ball head rod 325. The springs 326 are symmetrically arranged with the ball head rod 325 as the center. The ends of the two springs 326 away from the ball head rod 325 are fixedly connected to the upper and lower ends of the inner side of the limiting frame 324, respectively. When the drive box 321 is offset, the limiting frame 324 slides along the spherical surface of the ball head rod 325. During this process, the springs 326 on both sides undergo elastic deformation simultaneously. The spring 326 in the offset direction is stretched, and the spring 326 in the opposite direction is compressed. The rotation of the limiting frame 324 causes the two springs 326 to bend, converting the impact force generated by the swing into the elastic potential energy of the springs 326, effectively reducing equipment wear and noise.

[0030] The sorting and unloading assembly 33 includes an elastic frame 332, which is fixedly connected to the top of the base plate 1 and located on the side of the conveyor belt 31 away from the drive box 321. A step block 333 is fixedly connected to the inner side of the elastic frame 332. A unloading frame 331 is fixedly connected to the side of the elastic frame 332 away from the base plate 1. Several unloading frames 331 are provided, with the number corresponding to the number of conveyor belts 31. One end of each unloading frame 331 extends into the interior of the conveyor belt 31, and the end of the unloading frame 331 located inside the conveyor belt 31 is inclined towards the side away from the base plate 1. The surface of the unloading frame 331 is slidably connected to the surface of the drive rod 322. The outer side of the buffer ring 323 is fixedly connected to the surface of the unloading frame 331. Macadamia nuts pass through the sorting hole 34 and then fall into the inclined unloading frame 331. The macadamia nuts roll down the surface of the conveyor belt 31 and then roll down along the feeding frame 331. The feeding frame 331, which is set with the conveyor belt 31, realizes graded feeding. When the drive rod 322 swings with the conveyor belt 31, the feeding frame 331, which is slidably connected to it, shakes synchronously. This swinging is guided by the inclined surface of the feeding frame 331, causing the macadamia nuts to roll irregularly during the descent, effectively avoiding the fruit from being stacked or stuck and causing poor feeding. The elastic material and hollow structure of the buffer ring 323 and the elastic frame 332 absorb the impact force of the swinging drive rod 322 and provide flexible support for the feeding frame 331, preventing the fruit from being damaged by collision due to violent shaking. In addition, the feeding frame 331 swings with the drive rod 322, that is, it swings synchronously with the conveyor belt 31, ensuring that fruits of different sizes can fall accurately into the corresponding grading area.

[0031] A corrugated plate 334 is fixedly connected to the bottom of the inner side of the feeding frame 331, and several corrugated plates 334 are evenly distributed. Several support plates 335 are set directly below each feeding frame 331. The support plates 335 are fixedly connected to the side of the step block 333 away from the bottom plate 1. The side of the support plate 335 away from the step block 333 is fixedly connected to the inner side of the elastic frame 332. The support plates 335 are made of elastic material, and the two sides of the support plates 335 are concave inward and hollow. The corrugated plates 334 are arranged so that when the fruit slides down the feeding frame 331, the fruit is dispersed along the undulating surface of the corrugated plates 334. This effectively prevents fruits from accumulating in the feeding frame 331 due to a single sliding path, while also reducing collisions between fruits. The elastic support plate 335, with its inwardly concave hollow structure, buffers the vibration transmitted by the feeding frame 331. When the drive rod 322 causes the feeding frame 331 to swing, or when the fruit rapidly impacts the bottom of the feeding frame 331, the elastic material of the support plate 335 and the hollow cavity deform together, converting the vibration energy into elastic potential energy. This reduces the vibration amplitude of the feeding frame 331, preventing the fruit from being thrown out of the feeding area due to excessive vibration, and also avoids rigid collisions between the fruit and the feeding frame 331 that could damage the outer shell.

[0032] In use, macadamia nuts are placed on the surface of conveyor belt 31, and then the drive assembly 32 is activated. The drive box 321 drives the drive rod 322 to rotate, driving the conveyor belt 31 to transport the nuts. Several stepped conveyor belts 31 move the nuts. Nuts smaller than the sorting holes 34 fall into the sorting and unloading assembly 33 below. During transport, the protrusions 35 on the outer side of the conveyor belt 31 contact the baffle 36 connected to the center rod 37 by a torsion spring. Under the resistance of the torsion spring, the conveyor belt 31 swings, causing the nuts to bounce. When the force of the protrusions 35 pressing against the baffle 36 exceeds a predetermined threshold, the baffle 36 rotates. After the protrusions 35 pass, the baffle 36 is under the elastic force of the torsion spring. Under the action of resetting, the conveyor belt 31 swings, which drives the drive rod 322 to swing, which in turn drives the drive box 321 to swing, and then drives the limit frame 324 to swing. The limit frame 324 rotates outside the ball head rod 325. When the drive box 321 deviates, the limit frame 324 slides along the spherical surface of the ball head rod 325. During this process, the springs 326 on both sides undergo elastic deformation simultaneously. The spring 326 in the direction of deviation is stretched, while the spring 326 in the opposite direction is compressed. The rotation of the limit frame 324 causes the two springs 326 to bend, converting the impact force generated by the swing into the elastic potential energy of the springs 326, effectively reducing equipment wear and noise.

[0033] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A macadamia nut conveying device with a sorting mechanism, characterized in that, include: The base plate (1) has a bracket (2) fixedly connected to its top. The conveying mechanism (3) is fixedly connected to the inner side of the bracket (2); The conveying mechanism (3) includes: A conveyor belt (31) is provided at the intervals of the support (2), and the conveyor belt (31) is slidably connected to the inner side of the support (2); The conveyor belt (31) has sorting holes (34) on its surface. There are a plurality of sorting holes (34), and the plurality of sorting holes (34) are evenly distributed on the surface of the conveyor belt (31). The drive assembly (32) is connected to the inner side of the conveyor belt (31) and is fixedly connected to the outer side of the bracket (2). The sorting and unloading assembly (33) is located at the interval of the conveyor belt (31) and is inclined. The sorting and unloading assembly (33) is fixedly connected to the top of the base plate (1). The drive assembly (32) includes a drive box (321), and there are several drive boxes (321), the number of which corresponds to the number of conveyor belts (31). The drive boxes (321) are located outside the bracket (2). The drive boxes (321) are symmetrically provided with drive rods (322) on the side of the drive box (321) close to the conveyor belt (31), and the drive rods (322) are fixedly connected to the output end of the drive box (321). Two drive rods (322) are respectively located at both ends of the conveyor belt (31), and the drive rods (322) are connected to the inner side of the conveyor belt (31) in a transmission connection. The drive box (321) is fixedly connected to a limiting frame (324) on the side near the bracket (2). A ball head rod (325) is slidably connected to the inner side of the limiting frame (324), and the ball head rod (325) is located in the middle of the limiting frame (324). The side of the ball head rod (325) away from the drive box (321) is fixedly connected to the outer side of the bracket (2). A spring (326) is fixedly connected to the surface of the ball head rod (325). The spring (326) is symmetrically arranged with the ball head rod (325) as the center. The ends of the two springs (326) away from the ball head rod (325) are fixedly connected to the upper and lower ends of the inner side of the limiting frame (324).

2. The macadamia nut conveying device with a sorting mechanism according to claim 1, characterized in that: The conveyor belts (31) are provided in a plurality of manner, and the plurality of conveyor belts (31) are distributed in a stepped manner along the conveying direction. The surface of the plurality of conveyor belts (31) is provided with sorting holes (34), and the diameter of the sorting holes (34) on the surface of the plurality of conveyor belts (31) gradually decreases along the conveying direction.

3. A macadamia nut conveying device with a sorting mechanism according to claim 2, characterized in that: Each of the adjacent conveyor belts (31) is provided with a baffle (36). The side of the baffle (36) closest to the bottom plate (1) is inclined in the conveying direction. The two sides of the baffle (36) are slidably connected to the outer side of the two conveyor belts (31) respectively. A central rod (37) is rotatably connected to the center of the baffle (36) by a torsion spring. The end of the central rod (37) is fixedly connected to the inner side of the bracket (2).

4. A macadamia nut conveying device with a sorting mechanism according to claim 3, characterized in that: The outer side of the conveyor belt (31) is fixedly connected with a protrusion (35). There are several protrusions (35), which are evenly distributed on the surface of the conveyor belt (31) and are located at the intervals between adjacent sorting holes (34).

5. A macadamia nut conveying device with a sorting mechanism according to claim 4, characterized in that: Both sides of the conveyor belt (31) are provided with buffer rings (323). The inner side of the buffer ring (323) is rotatably connected to the surface of the drive rod (322). The outer side of the buffer ring (323) is fixedly connected to the inner side of the bracket (2). The two ends of the buffer ring (323) are recessed inward. The buffer ring (323) is hollow and is made of elastic material.

6. A macadamia nut conveying device with a sorting mechanism according to claim 5, characterized in that: The sorting and unloading assembly (33) includes an elastic frame (332), which is fixedly connected to the top of the base plate (1) and is located on the side of the conveyor belt (31) away from the drive box (321). A step block (333) is fixedly connected to the inner side of the elastic frame (332). A unloading frame (331) is fixedly connected to the side of the elastic frame (332) away from the base plate (1). There are several unloading frames (331), and the number of unloading frames (331) corresponds to the number of conveyor belts (31). One end of the unloading frame (331) extends into the inside of the conveyor belt (31), and the end of the unloading frame (331) located inside the conveyor belt (31) is inclined to the side away from the base plate (1). The surface of the unloading frame (331) is slidably connected to the surface of the drive rod (322), and the outer side of the buffer ring (323) is fixedly connected to the surface of the unloading frame (331).

7. A macadamia nut conveying device with a sorting mechanism according to claim 6, characterized in that: The bottom of the inner side of the feeding frame (331) is fixedly connected to a corrugated plate (334), and several corrugated plates (334) are evenly distributed. Several support plates (335) are provided directly below each of the feeding frames (331). The support plates (335) are fixedly connected to the side of the step block (333) away from the bottom plate (1). The side of the support plate (335) away from the step block (333) is fixedly connected to the inner side of the elastic frame (332). The support plate (335) is made of elastic material. The two sides of the support plate (335) are recessed inward, and the support plate (335) is hollow.

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