A pome sorting and grading apparatus

Abstract

The utility model discloses a kind of pear fruit sorting and grading equipment, including frame body, support rod, sponge cover, the frame body upper portion is sequentially fixed with multiple support rods along front-back direction from left to right, each the support rod outer wall is wrapped with the sponge cover of equal thickness, the space clearance between each the support rod left and right gradually increases from left to right, the frame body is equipped with multiple lifting mechanism, each the space clearance between lifting mechanism and each support rod is up and down corresponding respectively.Through setting image recognition algorithm and feature extraction algorithm etc. in controller, the appearance of pear fruit can be identified using the recognition camera, when the appearance of pear fruit is not good, and the pear fruit has entered the corresponding lifting platform top below, the corresponding electromagnet below can be energized by controller control, so that the lifting platform is inclined forward and downward, and the pear fruit rolls into the storage tank in front of the frame body, and when the appearance of pear fruit is better.

Description

Technical Field

[0001] This utility model relates to the field of fruit processing technology, and in particular to a pear sorting and grading device. Background Technology

[0002] After harvesting, pears need to be sorted and graded according to certain standards to maximize profits, and then sold at different prices. Common sorting standards include weight (size) and appearance. Chinese utility model patent application number 202420312621.2 provides a pear sorting device that "uses a transmission box or conveyor belt for centralized transfer to achieve pear sorting." However, it has two shortcomings: firstly, pears easily get stuck between the sorting rollers, and even if pushed by the connecting plate, they cannot be removed and are easily damaged, resulting in economic losses; secondly, this device can only sort pears by size, not by appearance, highlighting the deficiencies of the existing technology. Utility Model Content

[0003] The purpose of this invention is to provide a pear sorting and grading device to solve the technical problems of easily damaging pears and being unable to screen pears by appearance.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A pear sorting and grading device includes a frame, support rods, and a sponge sleeve. Multiple support rods are fixed sequentially from left to right along the front-back direction on the upper part of the frame. Each support rod is covered with a sponge sleeve of equal thickness. The spatial gap between the support rods gradually increases from left to right. The frame is equipped with multiple lifting mechanisms, each corresponding vertically to the spatial gap between the support rods. Each lifting mechanism includes a left support platform, a right support platform, an electric lifting mechanism, and a support component. The left support platform is located to the left of the right support platform and together with the right support platform forms a lifting platform. The left support platform is fixed to the electric lifting mechanism and is controlled by the electric lifting mechanism to move vertically. The top of the left support platform tilts downwards to the right. The top of the platform tilts downward to the left. The tops of the left and right support platforms are each covered with flat, soft pads. The electric lifting mechanism and support components are fixed to the frame. The support components are installed with the right support platform. The left and right support platforms tilt downward or backward together. Multiple downward-sloping storage slots are fixed at the front or rear of the frame. Each storage slot corresponds vertically to the space between each support rod. The storage slots are close to and correspond to the bottom inclined parts of the left and right support platforms. The electric lifting mechanism is electrically connected to the controller. The controller is externally powered and fixed to the frame. When the electric lifting mechanism controls the left support platform to move upward to a certain height, it can extend out from the space between the support rods.

[0006] Based on the above technical solution, a feeding hopper is fixed on the left side of the frame, and a storage hopper is fixed on the right side of the frame. The feeding hopper is tilted to the lower right, and its lower right part is close to the upper left part of the support rod at the far left of the frame. The left part of the storage hopper is tilted to the lower right, and its right part is horizontal. The upper left part of the storage hopper is close to the upper right part of the support rod at the far right of the frame.

[0007] Based on the above technical solution, the electric lifting mechanism includes an electric push rod, a left support base, a left compression spring, and a left permanent magnet. The electric push rod is vertically fixed to the frame. A horizontal left support base is fixed to the top of the electric push rod. The middle part of the left support base is hinged to the lower middle part of the left support platform. The virtual hinge axis of the left support platform is horizontally arranged and can swing back and forth. A left compression spring is fixed to both the front and rear parts of the bottom end of the left support platform and the front and rear parts of the top end of the left support base. A left permanent magnet is fixed to both the front and rear parts of the bottom end of the left support platform. The support member is a right support base, which is horizontally fixed to the frame and hinged to the right support platform at its upper middle part. The virtual hinge axis of the right support platform is horizontally set from left to right and can swing back and forth. The front and rear ends of the bottom of the right support platform and the front and rear ends of the top of the right support base are each fixed with a right compression spring. The front and rear ends of the bottom of the right support platform are each fixed with a right permanent magnet. The front and rear ends of the right support base are each fixed with an electromagnet. The electromagnets are electrically connected to the controller. Each electromagnet corresponds vertically to each left permanent magnet and each right permanent magnet.

[0008] Based on the above technical solution, storage slots are fixed in the front and rear parts of the frame, and multiple sets of recognition cameras are fixed in the upper part of the frame. Each set of recognition cameras is arranged at equal intervals in the front and rear direction and corresponds to the lifting mechanism vertically. Each recognition camera is electrically connected to the controller and recognizes images downwards.

[0009] Based on the above technical solution, two electric push rods that correspond to each other front and back form a group. The top ends of the two electric push rods in each group are fixed to the front and back parts of the bottom of the left support seat, respectively. Each of the front and back parts of the bottom of the left support seat is fixed with a distance measuring sensor. Each distance measuring sensor is electrically connected to the controller and can measure the vertical distance between the lower frames.

[0010] Compared with the prior art, the present invention has the following advantages: During the upward movement of the left support platform, the present invention can not only push the pear fruit, but also prevent it from getting stuck and damaged. Furthermore, by setting a sponge sleeve and soft pad, the damage to the pear fruit during movement can be further reduced.

[0011] By setting image recognition and feature extraction algorithms in the controller, the quality of pears can be identified using a recognition camera. When a pear is found to be of poor quality and has already entered the top of the corresponding support platform below it, the controller can control the corresponding electromagnet below to be energized, causing the support platform to tilt forward and downward, so that the pear rolls into the storage slot at the front of the shelf. When the pear is of good quality, the support platform tilts backward and downward, so that the pear rolls into the storage slot at the rear of the shelf, thus achieving the effect of sorting and grading according to quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the axonal structure of this utility model.

[0013] Figure 2 This is a front sectional view of the present invention.

[0014] Figure 3 This is a schematic diagram of the assembly of the lifting platform of this utility model.

[0015] Figure 4 This is a right-side view of the present invention.

[0016] In the diagram: 1. Frame, 2. Support rod, 3. Sponge sleeve, 5. Left support platform, 6. Right support platform, 9. Lifting platform, 10. Soft pad, 11. Storage tank, 12. Controller, 13. Feed hopper, 14. Storage hopper, 15. Electric push rod, 16. Left support base, 18. Left compression spring, 19. Left permanent magnet, 20. Right support base, 21. Right compression spring, 22. Right permanent magnet, 23. Electromagnet, 24. Recognition camera, 25. Distance sensor. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1-4As shown, a pear sorting and grading device includes a frame 1, support rods 2, and sponge sleeves 3. Multiple support rods 2 are fixed sequentially from left to right along the front-back direction on the upper part of the frame 1. Each support rod 2 is covered with a sponge sleeve 3 of equal thickness. The spatial gap between the left and right sides of each support rod 2 gradually increases from left to right. Multiple lifting mechanisms are installed on the frame 1, each corresponding vertically to the spatial gap between each support rod 2. Each lifting mechanism includes a left support platform 5, a right support platform 6, an electric lifting mechanism, and support components. The left support platform 5 is located to the left of the right support platform 6 and together with the right support platform 6 forms a lifting platform 9. The left support platform 5 is fixed to the electric lifting mechanism and is controlled by the electric lifting mechanism to move up and down. The top of the left support platform 5 tilts downwards to the right, and the top of the right support platform 6 tilts downwards to the left. A flat, soft pad 10 is laid on the top of the left support platform 5 and the top of the right support platform 6 respectively. The electric lifting mechanism and the support component are fixed to the frame 1 respectively. The support component is installed with the right support platform 6. The left support platform 5 and the right support platform 6 are tilted forward and downward or backward and downward together. Multiple downwardly tilted storage slots 11 are fixed at the front or rear of the frame 1. Each storage slot 11 corresponds vertically to the space gap between each support rod 2. The storage slots 11 are close to and correspond to the bottom tilted parts of the left support platform 5 and the right support platform 6. The electric lifting mechanism is electrically connected to the controller 12. The controller 12 is externally powered and fixed to the frame 1. The controller 12 is a known prior art, such as a microcontroller. When the electric lifting mechanism controls the left support platform 5 to move upward to a certain height, it can extend out from the space gap between the support rods 2.

[0019] In operation, the second, fourth, and sixth electric lifting mechanisms first bring the left support platform 5 closer to the right support platform 6, while the first, third, fifth, and seventh electric lifting mechanisms raise the left support platform 5. Then, the second, fourth, and sixth electric lifting mechanisms raise the left support platform 5, and the first, third, fifth, and seventh electric lifting mechanisms bring the left support platform 5 closer to the right support platform 6. This cycle is repeated. The pears are intermittently placed between the first and second support rods 2. Using the above cycle, the pears between the first and second support rods 2 are pushed upwards, causing them to roll down between the second and third support rods 2. Then, the pears continue to roll to the right until they pass through the gap between the two support rods 2 and fall onto the lifting platform 9. The lifting platform 9 tilts forward or backward and enters the corresponding storage slot 11 for sorting and grading. During the upward movement of the left support platform 5, the pears are not only pushed but also prevented from getting stuck or damaged. The sponge sleeve 3 and soft pad 10 further reduce damage to the pears during movement.

[0020] A feeding hopper 13 is fixed to the left side of the frame 1, and a storage hopper 14 is fixed to the right side of the frame 1. The feeding hopper 13 is tilted to the lower right, and its lower right part is close to the upper left part of the support rod 2 at the leftmost part of the frame 1. The storage hopper 14 is tilted to the lower right on the left, and its right part is horizontal. The upper left part of the storage hopper 14 is close to the upper right part of the support rod 2 at the rightmost part of the frame 1.

[0021] By feeding pears into the downward hopper 13, the pears can be automatically filled between the first support rod 2 and the second support rod 2, which is convenient and efficient. The storage hopper 14 can be used to collect the pears that have rolled to the far right of the frame 1, preventing them from falling and getting damaged.

[0022] The electric lifting mechanism includes an electric push rod 15, a left support base 16, a left compression spring 18, and a left permanent magnet 19. The electric push rod 15 is vertically fixed to the frame 1. The top of the push rod 15 is fixed with a horizontal left support base 16. The middle part of the left support base 16 is hinged to the lower middle part of the left support platform 5. The virtual hinge axis of the left support platform 5 is horizontally set from left to right and can swing back and forth. The front and rear parts of the bottom end of the left support platform 5 and the front and rear parts of the top end of the left support base 16 are each fixed with a left compression spring 18. The front and rear parts of the bottom end of the left support platform 5 are each fixed with a left permanent magnet 19. The right support base 20 is horizontally fixed to the frame 1 and its upper middle part is hinged to the right support platform 6. The virtual hinge axis of the right support platform 6 is horizontally set from left to right and can swing back and forth. The front and rear ends of the bottom of the right support platform 6 and the front and rear ends of the top of the right support base 20 are each fixed with a right compression spring 21. The front and rear ends of the bottom of the right support platform 6 are each fixed with a right permanent magnet 22. The front and rear ends of the right support base 20 are each fixed with an electromagnet 23. The electromagnets 23 are electrically connected to the controller 12. Each electromagnet 23 corresponds vertically to each left permanent magnet 19 and each right permanent magnet 22.

[0023] By controlling the extension and retraction of the electric push rod 15, the left support base 16 and the left support platform 5 can move up and down. By controlling the corresponding electromagnet 23 to be energized, the corresponding left permanent magnet 19 and right permanent magnet 22 can be magnetically attracted, thereby causing the left support platform 5 and the right support platform 6 to tilt forward and downward or backward and downward, so as to facilitate the pears to be discharged into the storage tank 11. When the electromagnet 23 is not energized, under the elastic repulsive force of the left compression spring 18 and the right compression spring 21, the left support platform 5 and the right support platform 6 tend to be horizontal, thereby reducing the forward and backward rolling of the pears.

[0024] Storage slots 11 are fixed to the front and rear parts of the frame 1 respectively. Multiple sets of recognition cameras 24 are fixed to the upper part of the frame 1. Each set of recognition cameras 24 is arranged at equal intervals in the front and rear direction and corresponds to the lifting mechanism above and below. Each recognition camera 24 is electrically connected to the controller 12. The recognition camera 24 recognizes the image downwards.

[0025] By setting image recognition and feature extraction algorithms in the controller 12, the quality of the pears can be identified using the recognition camera 24. When the quality of the pears is poor and the pears have already entered the top of the corresponding support platform 9 below (also determined by the recognition camera 24), the controller 12 can control the corresponding electromagnet 23 below to be energized, causing the support platform 9 to tilt forward and downward, so that the pears roll into the storage slot 11 at the front of the frame 1. When the quality of the pears is good, the support platform 9 is tilted backward and downward, so that the pears roll into the storage slot 11 at the rear of the frame 1.

[0026] Two electric push rods 15 that correspond to each other front and back form a group. The top of the push rods of the two electric push rods 15 in each group are fixed to the front and back parts of the bottom of the left support base 16, respectively. Each of the front and back parts of the bottom of the left support base 16 is fixed with a distance measuring sensor 25. Each distance measuring sensor 25 is electrically connected to the controller 12 and can measure the vertical distance between the lower frame 1.

[0027] The vertical distance between the lower frame 1 can be measured by the distance sensor 25, thereby determining the height position of the left support 16 relative to the support rod 2. At the same time, it can be determined whether the left support 16 is inclined to be horizontal. When it tilts slightly forward or backward due to the asynchronous movement of the electric push rod 15, it can be fed back to the controller 12 in time. The controller 12 then controls the corresponding electric push rod 15 to compensate in time, thereby ensuring that the left support 16 tends to be horizontal.

[0028] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A pear sorting and grading device, comprising a frame (1), support rods (2), and a sponge sleeve (3), wherein multiple support rods (2) are fixed sequentially from left to right along the front-back direction on the upper part of the frame (1), and the outer wall of each support rod (2) is covered with a sponge sleeve (3) of equal thickness, and the spatial gap between the left and right sides of each support rod (2) gradually increases from left to right, characterized in that: The frame (1) is equipped with multiple lifting mechanisms, each of which corresponds vertically to the space gap between each support rod (2). Each lifting mechanism includes a left support platform (5), a right support platform (6), an electric lifting mechanism, and a support component. The left support platform (5) is located to the left of the right support platform (6) and together with the right support platform (6) forms a lifting platform (9). The left support platform (5) is fixed to the electric lifting mechanism and is controlled by the electric lifting mechanism to move up and down. The top of the left support platform (5) tilts downward to the right, and the top of the right support platform (6) tilts downward to the left. The tops of the left support platform (5) and the right support platform (6) are respectively covered with flat soft pads (10). The electric lifting mechanism and the support component are respectively connected to the frame. (1) The support member is fixed to the right support platform (6). The left support platform (5) and the right support platform (6) are inclined forward and downward or backward and downward together. The front or rear of the frame (1) is fixed with a plurality of downwardly inclined storage slots (11). Each storage slot (11) corresponds to the space gap between each support rod (2) vertically. The storage slot (11) is close to and corresponds to the bottom inclined part of the left support platform (5) and the right support platform (6). The electric lifting mechanism is electrically connected to the controller (12). The controller (12) is connected to an external power source and is fixed to the frame (1). When the electric lifting mechanism controls the left support platform (5) to move upward to a certain height, it can extend out from the space gap between the support rods (2).

2. The pear sorting and grading equipment according to claim 1, characterized in that: The left side of the frame (1) is fixed with a feeding hopper (13), and the right side of the frame (1) is fixed with a storage hopper (14). The feeding hopper (13) is tilted to the lower right, and the lower right part is close to the upper left part of the support rod (2) at the leftmost part of the frame (1). The left side of the storage hopper (14) is tilted to the lower right, and the right side is horizontal. The upper left part of the storage hopper (14) is close to the upper right part of the support rod (2) at the rightmost part of the frame (1).

3. A pear sorting and grading device according to claim 1 or 2, characterized in that: The electric lifting mechanism includes an electric push rod (15), a left support seat (16), a left compression spring (18), and a left permanent magnet (19). The electric push rod (15) is vertically fixed to the frame (1). The top of the push rod of the electric push rod (15) is fixed with a horizontal left support seat (16). The middle part of the left support seat (16) is hinged to the lower middle part of the left support platform (5). The virtual hinge axis of the left support platform (5) is horizontally set from left to right and can swing back and forth. The bottom two parts of the left support platform (5) and the top two parts of the left support seat (16) are each fixed with a left compression spring (18). The bottom two parts of the left support platform (5) are each fixed with a left permanent magnet (19). The support component is... The right support base (20) is horizontal and fixed to the frame (1), and its upper middle part is hinged to the right support platform (6). The virtual hinge axis of the right support platform (6) is horizontally set and can swing back and forth. The bottom front and rear parts of the right support platform (6) and the top front and rear parts of the right support base (20) are each fixed with a right compression spring (21). The bottom front and rear parts of the right support platform (6) are each fixed with a right permanent magnet (22). The front and rear parts of the right support base (20) are each fixed with an electromagnet (23). The electromagnet (23) is electrically connected to the controller (12). Each electromagnet (23) corresponds vertically to each left permanent magnet (19) and each right permanent magnet (22).

4. The pear sorting and grading equipment according to claim 3, characterized in that: Storage slots (11) are fixed in the front and rear parts of the frame (1). Multiple sets of recognition cameras (24) are fixed on the upper part of the frame (1). Each set of recognition cameras (24) is arranged equidistantly in the front and rear direction and corresponds to the lifting mechanism. Each recognition camera (24) is electrically connected to the controller (12). The recognition camera (24) recognizes the image downwards.

5. A pear sorting and grading device according to claim 4, characterized in that: Two electric push rods (15) that correspond to each other are grouped together. The top of the push rods of the two electric push rods (15) in each group are fixed to the front and rear parts of the bottom of the left support base (16). Each of the front and rear parts of the bottom of the left support base (16) is fixed with a distance sensor (25). Each distance sensor (25) is electrically connected to the controller (12) and can measure the vertical distance between the lower frame (1).

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