Multispectral potato defect detecting and removing machine

By combining multispectral image detection and a roller lifting mechanism, the problem of low efficiency in existing potato defect detection and sorting machinery has been solved, achieving automated potato sorting with low error rate and high efficiency, which is suitable for large-scale industrial production.

CN223571385UActive Publication Date: 2025-11-21HANGZHOU DIANZI UNIV +1
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Patent Information

Application Number
CN202423081730.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-11-21
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

Existing potato defect detection and sorting machinery has limited efficiency, only employing a single identification method, and cannot meet the high-efficiency sorting needs of industrial sectors.

Method used

This system employs multispectral image detection combined with a roller lifting mechanism. An optical black box is used to non-destructively inspect the surface and internal defects of potatoes, and an automated sorting mechanism is implemented through a rejection mechanism. The rotation of the roller drives the potatoes to rotate for all-round inspection, and the automatic sorting of potatoes is achieved through the cooperation of cylinders and rejection rods.

Benefits of technology

It achieves low false positive rate and high efficiency in potato defect detection and sorting, improves the degree of automation, and is suitable for large-scale industrial production.

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Abstract

The utility model relates to a multispectral potato defect detecting and rejecting machine which comprises a rolling bar lifting mechanism which drives potatoes to rotate and is used for leading in and transporting the potatoes, and an optical black box which is used for carrying out nondestructive detection on surface and internal defects of the potatoes, the rejecting mechanism is used for controlling the falling points of the potatoes along with the falling of the potatoes to realize sorting; and the receiving mechanism is provided with two layers of conveying devices for classifying the potatoes. The automatic potato sorting device is stable in operation, high in automation degree and suitable for a large-scale automatic potato sorting production line, and an automatic potato optimization link with low misjudgment rate and high efficiency is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of multispectral potato defect detection rejection machines, belong to agricultural product sorting technical field. BACKGROUND

[0002] China is the world's potato production power, the existing potato defect detection sorting machinery, usually using ordinary visual detection and mechanical sorting mode.Under the higher defect detection rate, often limited efficiency, only single recognition form can be used, not enough to support the development of related industries. UTILITY MODEL CONTENTS

[0003] In order to overcome the existing potato defect detection sorting machinery limited efficiency, only single recognition form can be used, not enough to support the development of related industries problem, the utility model provides a kind of multispectral potato defect detection rejection machine, stable operation, high degree of automation, suitable for large-scale automatic potato sorting production line, realize low misjudgment rate, high efficiency automatic potato optimization link.

[0004] A kind of multispectral potato defect detection rejection machine, including the guide of rotating potato and the introduction and transport of potato roll lever lifting mechanism, the optical black box of non-destructive exploration to potato surface and internal defect, with the falling control potato drop point and realize the sorting of potato rejection mechanism and the interface mechanism with two layers of conveying device to potato classification;

[0005] The roll lever lifting mechanism includes a support structure with one side high and one side low, a roll lever chain laid in the support structure, a power structure and a transmission structure for transmitting power to the roll lever chain to drive the potato rotation;The support structure with one side low is provided with a hopper;Roll lever chain is distributed on the support structure, driven by chain wheel and chain, and pass through gear and rack transmission to generate passive rotation.

[0006] The optical black box is installed above the high side of the support frame support structure, provided with light source and multiple cameras, carries out image shooting to the plane part of roll lever lifting mechanism, analyzes potato quality in real time and sends rejection signal to the rejection mechanism;

[0007] The rejection mechanism is installed at the end of the horizontal frame of the high side of the support frame support structure, opposite the output port of the roll lever lifting mechanism, including rejection unit for sorting potato and pneumatic device for providing power to the rejection unit;

[0008] The interface mechanism includes upper and lower two layers of conveying devices for receiving sorted potato.The upper conveying device is provided with a certain inclination angle, and is provided with flexible structure to avoid potato damage;The lower conveying device is provided with a baffle to block its falling trajectory.

[0009] The support structure comprises a support frame and a support plate, the support frame is provided with a horizontal frame extending outward and used for supporting the cutting mechanism, and is welded to the output port, the support plate is installed on the support frame to carry the power structure, the transmission structure and the rolling link, and is provided with a shell used for carrying the optical black box. The support frame is welded by Gb / 6728-1986 square hollow section steel 050*50*2. The support plate is a sheet metal part.

[0010] The transmission structure further comprises a driving sprocket and a driven sprocket, a driving shaft and a driven shaft, a bearing seat and a shaft coupling, the sprocket is installed on the driving shaft fixed to the motor output shaft; the driving shaft is installed on the bearing seat, two bearing seats are installed in parallel on both sides of the support structure, the driving shaft passes through the bearing seat and the sprocket on both sides in sequence, and is fixed to the output hole of the speed reducer; the driven sprocket passes through the bearing seat and the sprocket on both sides in sequence by the driven shaft, and is fixed to the support frame by the bearing seat; the driving sprocket and the driven sprocket are engaged with the chain gap of the rolling link.

[0011] The power structure comprises a first motor used for providing power for the sprocket and a speed reducer used for increasing the output torque.

[0012] The rolling link comprises a rolling link, a support rod, a gear sleeve and a chain, the rolling link is provided with bearings embedded in the inner surfaces of both sides, the support rod passes through the bearings on both sides to be fixed, the support rod is fixed to the shaft parts of the chains on both sides, the outer surfaces of both sides of the rolling link are provided with the gear sleeves, the gear sleeves are engaged with the racks fixed to the support plate to be passively driven, the support rod is fixed to the chain connection shafts at intervals, and the interval distances of adjacent support rods are consistent, the chain connection shafts are provided with shaft sleeves on the outer sides, the diameters of the shaft sleeves are higher than the widths of the chain surfaces, and the shaft sleeves are loaded on the support plate.

[0013] The cutting mechanism comprises a base box installed on the support frame, a limiting cross bar welded to the front surface of the base box, a cutting rod installed on the limiting cross bar through a cutting rod joint, one end of a gas cylinder installed on the cutting rod, the other end of the gas cylinder installed on the base box through a gas cylinder support, a busbar fixed to the inside of the base box, electromagnetic valves arranged on the busbar and fixed, each gas cylinder provided with one electromagnetic valve and connected to the gas source through the busbar, and a cover plate installed on the base box through a third hinge.

[0014] The optical black box comprises a right warehouse plate, a left warehouse plate, a front baffle and a rear baffle, a warehouse door installed on the right warehouse plate and the left warehouse plate through a first hinge, a warehouse door stopper installed on the right warehouse plate and the left warehouse plate through a hinge, a dustproof belt installed on the front baffle and the rear baffle, a support strip and a camera cross bar installed between the right warehouse plate and the left warehouse plate, a camera installed on the camera cross bar, a gas spring support installed on the right warehouse plate and the left warehouse plate, one end of a gas spring installed on the gas spring support, and the other end of the gas spring installed on a top cover. The warehouse door is installed on the left warehouse plate and the right warehouse plate through a hinge, and the opening and closing of the warehouse door is limited by the warehouse door stopper, so that the warehouse door can only be opened in one direction.

[0015] The taking mechanism comprises a taking frame, the conveying belt frame is installed on the taking frame through an adjusting piece, the driving roller and the driven roller are both installed on a second bearing seat, the driving roller is connected with a second motor, the second bearing seat is installed on the conveying belt frame, the first conveying belt and the second conveying belt are installed between the driving roller and the driven roller, and the first baffle and the second baffle are both installed on the conveying belt frame. A supporting plate is installed inside the single conveying belt and fixed on the frame to support the upper layer of the annular conveying belt; the adjusting piece is installed on the side of the conveying belt and is provided with a slot hole for the connection between the conveying belt and the frame; and the baffle is installed on the outside of the lower conveying belt.

[0016] Compared with the prior art, the potato defect detection and removal machine has the advantages that:

[0017] The potato defect detection and removal machine has strong identification ability and low misjudgment rate.

[0018] The potato defect detection and removal machine adopts a falling body removal mode to realize potato sorting, utilizes a material sorting lifting height difference, determines a potato falling trajectory according to a chain belt speed, installs a removal mechanism between the falling trajectories, artificially controls a potato falling point, and realizes the sorting function; the potato defect detection and removal machine uses a cylinder and a removal rod to cooperate to pop the defective potatoes, is flexible in movement, stable in structure, and high in operation efficiency; the potato defect detection and removal machine adopts a rolling lever lifting mechanism to transport the potatoes, has a self-arrangement characteristic, can split the potatoes in a behavior unit during the transportation process, and is convenient for subsequent detection and removal; the rolling lever lifting area is provided with an inclination of 18° and a certain running distance, so that the lifting device has an automatic material sorting function and can prevent the potatoes from being stacked and arranged in a row during the lifting and rolling process. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a perspective view of the potato defect detection and removal machine according to the present application;

[0021] Figure 2 It is a structure schematic view of the rolling lever lifting mechanism of the potato defect detection and removal machine according to the present application;

[0022] Figure 3 It is a structure schematic view of the rejecting mechanism of the multi-spectrum potato defect detection and rejecting machine.

[0023] Figure 4 It is a structure schematic view of the receiving mechanism of the multi-spectrum potato defect detection and rejecting machine.

[0024] Figure 5 It is a structure schematic view of the optical black box of the multi-spectrum potato defect detection and rejecting machine.

[0025] In the figure: 100 - roll lever lifting mechanism; 200 - rejecting mechanism; 300 - receiving mechanism; 400 - optical black box; 101 - support frame; 102 - driving sprocket; 103 - driving shaft; 104 - speed reducer; 105 - first motor; 106 - rack; 107 - driven shaft; 108 - driven sprocket; 109 - hopper; 110 - roll lever chain; 111 - first bearing seat; 201 - base box; 202 - electromagnetic valve; 203 - cylinder support; 204 - cover plate; 205 - third hinge; 206 - bus plate; 207 - limiting cross bar; 208 - rejecting lever joint; 209 - rejecting lever; 210 - cylinder; 301 - second bearing seat; 302 - second conveying belt frame; 303 - first conveying belt; 304 - first baffle; 305 - second baffle; 306 - supporting plate; 307 - second conveying belt; 308 - first bearing seat; 309 - first conveying belt frame; 310 - adjusting piece; 311 - receiving frame; 312 - second motor; 313 - driving roller; 314 - driven roller; 401 - right bin plate; 402 - first hinge; 403 - bin door; 404 - bin door stop ring; 405 - door lock; 406 - front baffle; 407 - dustproof belt; 408 - camera; 409 - camera cross bar; 410 - left bin plate; 411 - support strip; 412 - gas spring support piece; 413 - rear baffle; 414 - handle; 415 - top cover; 416 - light source; 417 - second hinge; 418 - gas spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] REFERENCE Figure 1A multispectral potato defect detection and sorting machine, comprising a roller lifting mechanism 100 for rotating the potato and guiding and transporting the potato, an optical black box 400 for non-destructive detection of the surface and internal defects of the potato, a sorting mechanism 200 for controlling the falling point of the potato to achieve sorting, and a receiving mechanism 300 with two layers of conveying devices for classifying the potato;

[0028] The roller lifting mechanism 100 comprises a support structure with one side higher and one side lower, a roller chain laid in the support structure, a power structure, and a transmission structure for transmitting power to the roller chain to rotate the potato; the lower side of the support structure is provided with a hopper; the roller chain is distributed on the support structure and is driven by a chain wheel and chain, and is transmitted by a gear and rack to generate passive rotation.

[0029] The optical black box 400 is installed above the high side of the support frame support structure, and is provided with a light source and a plurality of cameras for image shooting of the planar part of the roller lifting mechanism, real-time analysis of the quality of the potato and sending of a sorting signal to the sorting mechanism;

[0030] The sorting mechanism 200 is installed at the end of the horizontal frame of the high side of the support frame support structure, opposite the output port of the roller lifting mechanism, and comprises a sorting unit for sorting the potato and a pneumatic device for providing power to the sorting unit;

[0031] The receiving mechanism 300 comprises two layers of conveying devices for receiving the sorted potato. The upper conveying device is provided with a certain inclination and a flexible structure to avoid damage to the potato; the lower conveying device is provided with a baffle to block the falling trajectory.

[0032] Reference Figure 2, the roll lifting mechanism 100 is the main body support part of the machine, used for the introduction and transportation of potatoes, wherein the support frame 101 is a square tube support with one side high and one side low, the high side is provided with a horizontally extending frame extending outward, used for supporting the removing mechanism, the top of the square tube support is provided with a metal shell, the inner side of the square tube support is provided with two layers of support plates, respectively used for bearing the chain and the gear on both sides of the roll, the output shaft of the first motor 105 is connected with the driving shaft 103 through the speed reducer 104, the driving shaft 103 passes through the first bearing seat 111 and the two side driving sprocket wheels 102 in sequence, and is fixed on the support frame 101 by the bearing seat 111, the driven shaft 107 passes through the first bearing seat 111 and the two side driven sprocket wheels 108 in sequence, and is fixed on the support frame 101 by the bearing seat 111, the rack 106 is installed on the inner lower support plate on both sides of the support frame 101, the hopper 109 is installed on the low side of the support frame, used as the introduction device at the potato input port, the chain part of the roll chain 110 is placed on the inner upper support plate on both sides of the support frame 101, the gear part of the roll is engaged with the rack 106, and passive transmission is performed, the roll chain 110 is entirely surrounded in the limiting area composed of the eight support plates in the frame 101, and the chain roller and its weight are used to move in the limiting area.

[0033] Referring to Figure 3 , the removing mechanism 200 is installed at the end of the horizontal frame on the high side of the support frame 101, opposite to the lower part of the roll lifting mechanism output port by a distance, the base box 201 is installed on the square tube support of the support frame 101, the limiting cross rod 207 is welded on the front of the base box, the ejection rod 209 is installed on the limiting cross rod 207 through the ejection rod joint 208, one end of the air cylinder 210 is installed on the ejection rod 209, the other end is installed on the base box 201 through the air cylinder support 203, the busbar 206 is fixed in the base box 201, the electromagnetic valve 202 is arranged on the busbar 206 and fixed, each air cylinder is provided with one electromagnetic valve, and is connected with the air source through the busbar, the cover plate 204 is installed on the base box 201 through the third hinge 205, and the cover plate is opened and closed.

[0034] Referring to Figure 4The picking mechanism 300 is independently installed right below the removing mechanism 200, the picking frame 311 is a main support structure, the conveying belt frame 302 is installed on the picking frame 311 through the adjusting piece 310, the driving roller 313 and the driven roller 314 are both installed on the second bearing seat 301, the driving roller 313 is connected with the second motor 312, the first bearing seat 308 is installed on the first conveying belt frame 309, the second bearing seat 301 is installed on the second conveying belt frame 302, the first conveying belt 303 and the second conveying belt 307 are installed between the driving roller 313 and the driven roller 314, the supporting plate 306 is a door-shaped structure with ribbed support, and is installed on the first conveying belt frame 309 and the second conveying belt frame 302 respectively, and the first baffle 304 and the second baffle 305 are both installed on the second conveying belt frame 302

[0035] With reference to Figure 5 The optical black box 400 is installed on the metal shell of the support frame, the right bin plate 401 and the left bin plate 410 are directly fixed with the metal shell, the front baffle 406 and the rear baffle 413 are installed between the right bin plate 401 and the left bin plate 410 to form a main bin body, the bin door 403 is installed on the right bin plate 401 and the left bin plate 410 through the first hinge 402, the bin door stop ring 404 is installed on the right bin plate 401 and the left bin plate 410 through the hinge 402 and is used for blocking the movement of the bin door 403, the door lock 405 is installed on the bin door 403, the dustproof belt 407 is installed on the front baffle 406 and the rear baffle 413, the support strip 411 and the camera cross rod 409 are installed between the right bin plate 401 and the left bin plate 410, the camera 408 is installed on the camera cross rod 409, the light source 416 is installed between the support strips 411, the gas spring support 412 is installed on the right bin plate 401 and the left bin plate 410, one end of the gas spring 418 is installed on the gas spring support 412, the other end is installed on the top cover 415, the handle 414 is installed on the top cover 415, and the top cover 415 is installed on the rear baffle 413 through the second hinge 417.

[0036] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A multi-spectral potato defect detection and culler, characterized by: The potato rotating belt lifting mechanism, the optical black box for non-destructive detection of potato surface and internal defects, the rejecting mechanism for realizing sorting by controlling the falling point of the potato, and the receiving mechanism with two layers of conveying devices for classifying the potatoes; The potato rotating belt lifting mechanism includes a support structure with one side higher and the other side lower, a belt lifting chain laid in the support structure, a power structure, and a transmission structure for transmitting power to the belt lifting chain to drive the potato to rotate; the support structure with one side lower is provided with a hopper; The optical black box is installed above the high side of the support frame support structure, is provided with a light source and a plurality of cameras, and is used for image shooting of the planar part of the belt lifting mechanism, real-time analysis of the potato quality, and sending of a rejecting signal to the rejecting mechanism; The rejecting mechanism is installed at the end of the horizontal frame of the high side of the support frame support structure, faces the output port of the belt lifting mechanism, and includes a rejecting unit for sorting the potatoes and a pneumatic device for providing power to the rejecting unit; The receiving mechanism includes two layers of conveying devices for receiving the sorted potatoes.

2. A multi-spectral potato defect detection and culling machine according to claim 1, characterized in that: The support structure includes a support frame and a support plate, the support frame is provided with a horizontal frame extending outward and used for supporting the rejecting mechanism, and is welded and fixed at the output port, and the support plate is installed on the support frame to carry the power structure, the transmission structure, and the belt lifting chain, and is provided with an outer shell for carrying the optical black box.

3. A multi-spectral potato defect detection and culling machine according to claim 1 or 2, characterized in that: The transmission structure further includes a driving sprocket and a driven sprocket, a driving shaft and a driven shaft, a bearing seat, and a shaft coupling, the sprocket is installed on the driving shaft fixed with the motor output shaft; the driving shaft is installed on the bearing seat, two bearing seats are installed in parallel on both sides of the support structure, the driving shaft sequentially passes through the bearing seat and the sprockets on both sides, and is fixed on the output hole of the speed reducer; the driven sprocket sequentially passes through the bearing seat and the sprockets on both sides by the driven shaft, and is fixed on the support frame by the bearing seat; the driving sprocket and the driven sprocket are engaged with the chain gap of the belt lifting chain; The power structure includes a first motor for providing power to the sprocket and a speed reducer for increasing the output torque.

4. A multi-spectral potato defect detection and culling machine as claimed in claim 1, wherein: The belt lifting chain includes a rolling bar, a support rod, a gear sleeve, and a chain; the rolling bar is embedded with bearings on both inner surfaces, is fixed by the support rod passing through the bearings on both sides, and is fixed with the shaft parts of the chains on both sides; the rolling bar is embedded with gear sleeves on both outer surfaces, the gear sleeves are engaged with the gear racks fixed on the support plate for passive transmission; the support rod is fixed with the chain interconnection shaft at intervals of several chain links, and the interval distance of adjacent support rods is consistent; The chain interconnection shaft is provided with an axle sleeve on the outer side, the diameter of the axle sleeve is higher than the width of the chain surface, and the axle sleeve is carried on the support plate.

5. A multispectral potato defect detection and culling machine as in claim 1, wherein: The rejecting mechanism includes a base box installed on the support frame, a limiting cross bar welded on the front of the base box, a rejecting rod installed on the limiting cross bar through a rejecting rod joint, a cylinder installed on the rejecting rod at one end and installed on the base box through a cylinder support at the other end, a busbar fixed inside the base box, electromagnetic valves arranged on the busbar and fixed, one electromagnetic valve corresponding to each cylinder and connected with the air source through the busbar, and a cover plate installed on the base box through a third hinge.

6. A multi-spectral potato defect detection and culling machine as claimed in claim 1, characterized in that: The optical black box comprises a right bin plate, a left bin plate, a front baffle and a rear baffle, a bin door is installed on the right bin plate and the left bin plate through a first hinge, a bin door stop ring is installed on the right bin plate and the left bin plate through a hinge, a dustproof belt is installed on the front baffle and the rear baffle, a support strip and a camera crossbar are installed between the right bin plate and the left bin plate, a camera is installed on the camera crossbar, an air spring support is installed on the right bin plate and the left bin plate, one end of an air spring is installed on the air spring support, and the other end is installed on a top cover.

7. A multispectral potato defect detection and culling machine as in claim 1, wherein: The taking mechanism comprises a taking frame, a conveying belt frame is installed on the taking frame through an adjusting piece, a driving roller and a driven roller are both installed on a second bearing seat, the driving roller is connected with a second motor, the second bearing seat is installed on the conveying belt frame, a first conveying belt and a second conveying belt are installed between the driving roller and the driven roller, and a first baffle and a second baffle are both installed on the conveying belt frame.