Walnut appearance defect detection device

By designing a walnut appearance defect detection device, which uses rolling rollers and tumbling components to automatically transport walnuts and combines them with a recognition camera for detection, the problem of cumbersome walnut feeding in the existing technology is solved, the detection efficiency is improved and the labor intensity is reduced.

CN224101292UActive Publication Date: 2026-04-10CHONGQING THREE GORGES UNIV
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING THREE GORGES UNIV
Filing Date
2025-04-24
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The existing walnut testing equipment is cumbersome in the feeding process, which increases the labor intensity of the staff and is not conducive to improving testing efficiency.

Method used

A walnut appearance defect detection device was designed, including a working frame, an inclined bin, a conveyor belt, a rolling roller, a V-shaped plate, a detection frame, a tumbling assembly, and a feeding assembly. The rolling roller is driven to rotate by a controllable stepper motor, and the V-shaped plate transports walnuts one by one. The tumbling assembly makes the walnuts rotate in opposite directions between the connecting roller and the auxiliary roller. The device is combined with a recognition camera for detection, which reduces the intensity of manual operation.

Benefits of technology

It achieves highly efficient automation of the walnut testing process, reduces the labor intensity of staff, improves testing efficiency, and is easy to operate and use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224101292U_ABST
    Figure CN224101292U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of walnut detection, in particular to a walnut appearance defect detection device which comprises a working frame, an inclined plane bin, a conveying belt, two rolling rollers, a plurality of V-shaped plates, a material bin, a detection frame, a connecting roller, an auxiliary roller, a rolling assembly and a discharging assembly. During use, walnuts are poured into the material bin, the controllable stepping motor is used for driving the rolling roller to rotate, at the moment, the conveying belt starts to rotate in the inclined plane bin, the V-shaped plate can convey the walnuts to move upwards one by one, the walnuts fall into the position between the connecting roller and the auxiliary roller, then the connecting roller and the auxiliary roller are driven to rotate reversely in cooperation with the rolling assembly, and the overall appearance of the walnuts is displayed. And the discharging assembly is used for taking out walnuts between the connecting roller and the auxiliary roller, in this way, the labor intensity of workers is reduced, the walnut detection efficiency can be improved, and operation and use of the workers are facilitated.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to walnut detection technical field especially relates to a walnut appearance defect detection device. BACKGROUND

[0002] Walnut is the largest economic forest species in China, which has high nutritional value and commercial value. Most of the traditional sorting processes use assembly line manual sorting to remove walnuts with appearance defects. Manual sorting has the disadvantages of low efficiency and low accuracy, and the defects of some walnuts are not obvious.

[0003] Currently, detection is carried out through sorting equipment. The existing sorting equipment generally has an identification camera and a mechanism for tumbling walnuts. The walnuts are placed on the tumbling mechanism, and the identification camera identifies the walnuts, which is efficient and can effectively reduce labor costs.

[0004] However, in the foregoing prior art, walnut feeding is troublesome, which increases the labor intensity of workers and is not conducive to improving the efficiency of walnut detection. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a walnut appearance defect detection device, which solves the problems of troublesome walnut feeding, increased labor intensity of workers, and low efficiency of walnut detection in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides a walnut appearance defect detection device, which comprises a workbench, an inclined bin, a conveyor belt, two rolling rollers, a plurality of V-shaped plates, a material bin, a detection frame, a connecting roller, an auxiliary roller, a tumbling assembly, and a discharging assembly. The material bin is fixedly connected with the workbench and located on one side of the workbench. The inclined bin is in communication with the material bin and located on one side of the material bin. The inclined bin is adapted to the workbench. The two rolling rollers are rotatably connected with the inclined bin and respectively located on the inner side walls of the inclined bin. The conveyor belt is sleeved on the outer side walls of the two rolling rollers. The plurality of V-shaped plates are fixedly connected with the conveyor belt and respectively located on the outer side walls of the conveyor belt. The detection frame is fixedly connected with the workbench and located above the workbench. The connecting roller is rotatably connected with the detection frame and located on the inner side wall of the detection frame. The auxiliary roller is rotatably connected with the detection frame and located on the inner side wall of the detection frame. The tumbling assembly is connected with the detection frame, the connecting roller, and the auxiliary roller. The discharging assembly is connected with the workbench.

[0007] The rolling assembly comprises a driving tooth, a driven tooth and a mounting rack, the mounting rack is fixedly connected with the detection rack and located at one side of the detection rack, the driving tooth is fixedly connected with the connecting roller and located at one end of the connecting roller, the driven tooth is fixedly connected with the auxiliary roller and located at one end of the auxiliary roller, and the driven tooth is engaged with the driving tooth.

[0008] The rolling assembly further comprises an identification camera and a support, the support is fixedly connected with the working frame and located above the working frame, and the identification camera is detachably connected with the support and located at an inner top wall of the support.

[0009] The unloading assembly comprises a rotating shaft, an unloading plate and a swing motor, the swing motor is fixedly connected with the working frame and located above the working frame, the rotating shaft is fixedly connected with the swing motor and located at an output end of the swing motor, the unloading plate is fixedly connected with the rotating shaft and located at one end of the rotating shaft, and the unloading plate is adapted to the connecting roller and the auxiliary roller.

[0010] The unloading assembly further comprises two receiving hoppers, and the two receiving hoppers are fixedly connected with the working frame and respectively located above the working frame.

[0011] The walnut appearance defect detection device of the utility model, when using, walnut is poured into the material bin, the controllable stepping motor is used for driving the rotating roller to rotate, at this time, the conveying belt starts to rotate in the inclined bin, the V-shaped plate will displace single walnut transportation upwards, so that the walnut falls into the connecting roller and the auxiliary roller, and then the rolling assembly is used for driving the connecting roller and the auxiliary roller to rotate reversely, the appearance of the whole walnut is displayed, the unloading assembly is used for taking out the walnut between the connecting roller and the auxiliary roller, the labor intensity of workers is reduced in this way, the efficiency of walnut detection is improved, and the workers are convenient to operate and use. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description.

[0013] Figure 1 is a structure schematic view of the walnut appearance defect detection device of the utility model.

[0014] Figure 2 is a right view of the walnut appearance defect detection device of the utility model.

[0015] Figure 3 is a structure schematic view of the walnut appearance defect detection device of the utility model. Figure 2 A-A line section view of the utility model.

[0016] Figure 4 is the walnut appearance defect detection device of the utility model Figure 3 is the local structure enlarged view of B of the utility model

[0017] Figure 5 is the plan view of the walnut appearance defect detection device of the utility model

[0018] 101-working frame, 102-inclined surface warehouse, 103-conveying belt, 104-rolling roller, 105-V-shaped plate, 106-material warehouse, 107-detection frame, 108-connecting roller, 109-assistant roller, 110-driving tooth, 111-following tooth, 112-mounting frame, 113-identification camera, 114-bracket, 115-rotating shaft, 116-discharging plate, 117-swing motor, 118-receiving hopper, 119-stepping motor, 120-driving motor. DETAILED DESCRIPTION

[0019] Please refer to Figures 1 to 5 , wherein, Figure 1 is the structure diagram of the walnut appearance defect detection device of the utility model, Figure 2 is the right view of the walnut appearance defect detection device of the utility model, Figure 3 is the A-A line section view of the utility model Figure 2 , Figure 4 is the local structure enlarged view of B of the utility model Figure 3 , Figure 5 is the plan view of the walnut appearance defect detection device of the utility model.

[0020] The utility model provides a kind of walnut appearance defect detection device, including working frame 101, inclined surface warehouse 102, conveying belt 103, two rolling rollers 104, multiple V-shaped plates 105, material warehouse 106, detection frame 107, connecting roller 108, auxiliary roller 109, tumbling assembly and discharging assembly, the tumbling assembly includes driving tooth 110, following tooth 111, mounting frame 112, identification camera 113 and bracket 114, and the discharging assembly includes rotating shaft 115, discharging plate 116, swing motor 117 and two receiving hoppers 118.

[0021] The material bin 106 is fixedly connected with the workbench 101 and located on one side of the workbench 101, the inclined bin 102 is in communication with the material bin 106 and located on one side of the material bin 106, and the inclined bin 102 is matched with the workbench 101, both the rolling rollers 104 are rotationally connected with the inner side walls of the inclined bin 102, the conveying belt 103 is sleeved on the outer side walls of both the rolling rollers 104, a plurality of V-shaped plates 105 are fixedly connected with the conveying belt 103 and located on the outer side walls of the conveying belt 103, the detection frame 107 is fixedly connected with the workbench 101 and located above the workbench 101, the connecting roller 108 is rotationally connected with the inner side wall of the detection frame 107, the auxiliary roller 109 is rotationally connected with the inner side wall of the detection frame 107, and the tumbling assembly is connected with the detection frame 107, the connecting roller 108 and the auxiliary roller 109 respectively, and the discharging assembly is connected with the workbench 101.

[0022] In the embodiment, the walnuts are poured into the material bin 106, the rolling rollers 104 are driven to rotate by the controllable stepping motor 119, at this time, the conveying belt 103 starts to rotate in the inclined bin 102, the V-shaped plates 105 individually transport the walnuts to move upwards, so that the walnuts fall between the connecting roller 108 and the auxiliary roller 109, and then the connecting roller 108 and the auxiliary roller 109 are driven to rotate in opposite directions by the tumbling assembly, so as to show the overall appearance of the walnuts, and the discharging assembly is used to take out the walnuts between the connecting roller 108 and the auxiliary roller 109, so as to reduce the labor intensity of the workers, improve the walnut detection efficiency, and facilitate the operation and use of the workers.

[0023] Further, the mounting frame 112 is fixedly connected with the detection frame 107 and located on one side of the detection frame 107, the driving tooth 110 is fixedly connected with the connecting roller 108 and located at one end of the connecting roller 108, the driven tooth 111 is fixedly connected with the auxiliary roller 109 and located at one end of the auxiliary roller 109, and the driven tooth 111 is engaged with the driving tooth 110.

[0024] In the embodiment, the driving motor 120 is fixed to the mounting frame 112, and the output end of the driving motor 120 is connected with the driving tooth 110, the driving motor 120 is started by clicking the controller, so as to drive the driving tooth 110 to rotate, and since the driven tooth 111 is engaged with the driving tooth 110, the connecting roller 108 and the auxiliary roller 109 rotate in opposite directions at this time, and the overall tumbling of the walnuts is completed.

[0025] Further, the support 114 is fixedly connected with the working frame 101 and located above the working frame 101, and the identification camera 113 is detachably connected with the support 114 and located at the inner top wall of the support 114.

[0026] In the embodiment, the identification camera 113 is used for photographing the appearance defects of walnuts, and then the screening is performed in cooperation with the unloading assembly.

[0027] The identification camera 113 adopts a Finland SpecimFX10 hyperspectral camera, including a conventional model containing a 400-1000nm region and a color-optimized model SpecimFX10c camera containing a 400-780nm region, equipped with a CMOS sensor of 512 spatial pixels and 220 spectral channels, supporting 330fps at full resolution, which can analyze data of up to 250 spectral bands in the visible light to near-infrared range, distinguish whether the same shade of brown is generated by one or multiple bands superimposed, thereby identifying the walnut shell, shell residues, mold-infected walnuts or any contaminants, and dividing each identified particle into good or bad.

[0028] Further, the swing motor 117 is fixedly connected with the working frame 101 and located above the working frame 101, the rotating shaft 115 is fixedly connected with the swing motor 117 and located at the output end of the swing motor 117, and the unloading plate 116 is fixedly connected with the rotating shaft 115 and located at one end of the rotating shaft 115, and the unloading plate 116 is adapted to the connecting roller 108 and the auxiliary roller 109.

[0029] In the embodiment, when the walnut appearance is defect-free, the identification camera 113 outputs an electrical signal to control the swing motor 117 to rotate, so that the unloading plate 116 on one side of the rotating shaft 115 rotates to the left to complete unloading, and when the walnut appearance has defects, the unloading plate 116 rotates to the right, and the device has a simple structure and is easy to learn and operate.

[0030] Further, the two receiving hoppers 118 are fixedly connected with the working frame 101 and respectively located above the working frame 101.

[0031] In the embodiment, the receiving hoppers 118 are used for collecting sorted walnuts, thereby reducing the subsequent workload of the workers.

[0032] The above disclosure is only a preferred embodiment of the present application, and cannot limit the scope of the rights of the present application. Those skilled in the art can understand that the above-mentioned all or part of the processes are implemented, and equivalent changes are made according to the claims of the present application, which still belongs to the scope covered by the present application.

Claims

1. A walnut appearance defect detection device, characterized in that, including a workbench, an inclined bin, a conveyor belt, two rolling rollers, a plurality of V-shaped plates, a material bin, a detection frame, a connecting roller, an auxiliary roller, a tumbling assembly and a discharging assembly, the material bin is fixedly connected with the workbench and located on one side of the workbench, the inclined bin is communicated with the material bin and located on one side of the material bin, and the inclined bin is matched with the workbench, two rolling rollers are rotatably connected with the inclined bin and respectively located on the inner side walls of the inclined bin, the conveyor belt is sleeved on the outer side walls of two rolling rollers, a plurality of V-shaped plates are fixedly connected with the conveyor belt and respectively located on the outer side walls of the conveyor belt, the detection frame is fixedly connected with the workbench and located above the workbench, the connecting roller is rotatably connected with the detection frame and located on the inner side wall of the detection frame, the auxiliary roller is rotatably connected with the detection frame and located on the inner side wall of the detection frame, the tumbling assembly is connected with the detection frame, the connecting roller and the auxiliary roller respectively, and the discharging assembly is connected with the workbench.

2. The walnut appearance defect detection device according to claim 1, characterized in that, the tumbling assembly comprises a driving tooth, a driven tooth and a mounting frame, the mounting frame is fixedly connected with the detection frame and located on one side of the detection frame, the driving tooth is fixedly connected with the connecting roller and located on one end of the connecting roller, the driven tooth is fixedly connected with the auxiliary roller and located on one end of the auxiliary roller, and the driven tooth is engaged with the driving tooth.

3. The walnut appearance defect detection device according to claim 2, characterized in that, the tumbling assembly further comprises an identification camera and a support, the support is fixedly connected with the workbench and located above the workbench, and the identification camera is detachably connected with the support and located on the inner top wall of the support.

4. The walnut appearance defect detection device according to claim 3, characterized in that, the discharging assembly comprises a rotating shaft, a discharging plate and an oscillation motor, the oscillation motor is fixedly connected with the workbench and located above the workbench, the rotating shaft is fixedly connected with the oscillation motor and located on the output end of the oscillation motor, the discharging plate is fixedly connected with the rotating shaft and located on one end of the rotating shaft, and the discharging plate is matched with the connecting roller and the auxiliary roller.

5. The walnut appearance defect detection device according to claim 4, characterized in that, the discharging assembly further comprises two receiving hoppers, two receiving hoppers are fixedly connected with the workbench and respectively located above the workbench.