Automatic sample collecting mechanism for perfect grains and imperfect grains and imperfect grain analyzer

Abstract

The utility model relates to a perfect grain and imperfect grain automatic sample collecting mechanism and grain imperfect grain analyser, the automatic sample collecting mechanism comprises a base, two mounting plates, two groups of material returning mechanisms, two circular turntables and two groups of rotary driving mechanisms, the two mounting plates are respectively horizontally arranged and are distributed above the base at intervals left and right; the two sets of material returning mechanisms are installed on the base and connected with the two installation plates respectively, the two sets of material returning mechanisms are used for driving the corresponding installation plates to horizontally move left and right relative to the base, the two rotary discs are rotationally installed at the upper ends of the two installation plates in a one-to-one correspondence mode respectively, and the two sets of rotary driving mechanisms are installed on the two installation plates in a one-to-one correspondence mode respectively. And the rotating discs are in transmission connection with the two rotating discs in a one-to-one correspondence mode and used for driving the rotating discs to rotate, and a plurality of material boxes are assembled on the rotating discs in the circumferential direction of the rotating discs at equal intervals. The grain receiving device has the advantages that perfect grains and imperfect grains can be conveniently received, the grains can be received in a classified mode according to the grain varieties of the perfect grains and the imperfect grains, and the materials can be returned after being received.

Description

Technical Field

[0001] This utility model relates to the field of grain testing technology, and in particular to an automatic sampling mechanism for perfect and imperfect grains and a grain imperfect grain analyzer. Background Technology

[0002] In visual inspection equipment for grain products, it is often necessary to classify grain varieties according to their quality. However, the sorted grain products need to be collected and boxed according to their corresponding characteristics. Specifically, in the grain inspection process, it is usually necessary to detect perfect grains and imperfect grains. After the detection, the perfect and imperfect grains are sorted and collected.

[0003] Currently, existing equipment can only detect perfect and imperfect grains for a single type of grain, and cannot perform batch testing of multiple varieties of grain. Therefore, it cannot meet the needs of sample collection. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an automatic sampling mechanism for perfect and imperfect grains and a grain imperfect grain analyzer, which effectively overcomes the defects of the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] An automatic sample collection mechanism for perfect and imperfect particles includes a base, two mounting plates, two sets of ejection mechanisms, two circular turntables, and two sets of rotation drive mechanisms. The two mounting plates are horizontally arranged and distributed on the base at left and right intervals. The two sets of ejection mechanisms are respectively mounted on the base and connected to the two mounting plates one by one. The two sets of ejection mechanisms are used to drive the corresponding mounting plates to translate left and right relative to the base. The two turntables are respectively rotatably mounted on the upper part of the two mounting plates one by one. The two sets of rotation drive mechanisms are respectively mounted on the two mounting plates one by one and connected to the two turntables one by one to drive the turntables to rotate. Each turntable is equipped with a plurality of material boxes evenly spaced along its circumference.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the upper end of the base is equipped with two slide rails spaced back and forth, the slide rails extending in the left and right direction, and the lower ends of the two mounting plates are respectively slidably mounted on the two slide rails via sliders.

[0009] Furthermore, the aforementioned ejection mechanism includes an ejection motor, a rack, and a gear. The rack is fixed to the upper end of the base in the left-right direction. The ejection motor is mounted on the upper end of the corresponding mounting plate, and its motor shaft passes vertically through the mounting plate and is coaxially connected to the gear. The gear meshes with the rack.

[0010] Furthermore, photoelectric switches are provided on the base at intervals on either side of the mounting plate, corresponding to the front or rear sides of the mounting plate. A connecting part is provided on either side of the mounting plate, and a sensing part is provided on the connecting part that extends downward and is adapted to the photoelectric switch. The photoelectric switch and the ejector motor are respectively connected to the controller.

[0011] Furthermore, limiters are provided at the left and right ends of the base corresponding to the positions of the connecting parts.

[0012] Furthermore, the lower end of the turntable is mounted on the corresponding mounting plate via a drive shaft coaxially distributed therewith, and the rotary drive mechanism is connected to the drive shaft.

[0013] Furthermore, the aforementioned rotary drive mechanism includes a rotary motor, a first pulley, a second pulley, and a belt. The rotary motor is mounted on the aforementioned mounting plate, with its motor shaft vertically penetrating the aforementioned mounting plate and coaxially connected to the aforementioned first pulley. The aforementioned second pulley is coaxially mounted on the aforementioned drive shaft, and the aforementioned belt surrounds the aforementioned first pulley and second pulley.

[0014] Furthermore, the aforementioned material box extends through the aforementioned turntable, and each of the aforementioned material boxes has a code on its bottom. The aforementioned mounting plate has a code reader, and the aforementioned code reader and the rotary motor are both connected to the controller.

[0015] Furthermore, the turntable is provided with a through hole corresponding to the material box. The upper cross-sectional area of ​​the material box is larger than the lower cross-sectional area. The lower part of the material box passes through the through hole, and its upper part is supported on the upper edge of the through hole.

[0016] The beneficial effects are: the structure is reasonably designed, which can facilitate the receiving of perfect and imperfect grains. At the same time, it can be used to classify the grains according to the type of grains that are perfect and imperfect, and it can also realize the return of the grains after receiving them.

[0017] A grain imperfect grain analyzer is also provided, comprising a chassis and a grain batch feeding mechanism, a single grain discharging mechanism, a discharging channel, a perfect grain and imperfect grain sorting mechanism, and a perfect grain and imperfect grain automatic sample collection mechanism, all respectively assembled in the chassis. The top of the chassis is open, the feeding portion of the grain batch feeding mechanism is located in the opening, the feeding end of the single grain discharging mechanism is located below the discharging end of the grain batch feeding mechanism, and the upper opening of the discharging channel is located below the discharging end of the single grain discharging mechanism. Multiple cameras are spaced around the upper channel opening of the channel, and all of the cameras are connected to a machine vision system. The feed end of the sorting mechanism for perfect and imperfect grains is connected to the lower channel opening of the discharge channel. The sorting mechanism for perfect and imperfect grains has perfect grain outlets and imperfect grain outlets that are spaced to the left and right. The two turntables are respectively distributed below the perfect grain outlets and imperfect grain outlets of the sorting mechanism for perfect and imperfect grains. The left and right side walls of the chassis are provided with discharge ports for the two mounting plates and the turntables above to slide in and out.

[0018] The beneficial effects are: the machine can realize the feeding, unloading and sorting of different varieties of grain. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the automatic sample collection mechanism for perfect and imperfect particles of this utility model.

[0020] Figure 2 This is a top view of the automatic sample collection mechanism for perfect and imperfect particles of this utility model.

[0021] Figure 3 This is a top view of the structure of the automatic sample collection mechanism for perfect and imperfect particles of this utility model after removing a material box on a mounting plate.

[0022] Figure 4 This is a schematic diagram of the structure of the automatic sample collection mechanism for perfect and imperfect particles of this utility model, taken from a bottom view after removing the base.

[0023] Figure 5 This is a schematic diagram of the internal structure of the grain imperfect grain analyzer of this utility model.

[0024] Figure 6 This is a structural elevation view of the grain batch feeding mechanism in the grain imperfect grain analyzer of this utility model;

[0025] Figure 7 This is a side view of the grain batch feeding mechanism in the grain imperfect grain analyzer of this utility model;

[0026] Figure 8This is a schematic diagram of the auxiliary detector in the grain imperfect grain analyzer of this utility model;

[0027] Figure 9 This is a side view of the structure of the sorting mechanism for perfect and imperfect grains in the grain imperfect grain analyzer of this utility model.

[0028] Figure 10 This is a top view of the structure of the sorting mechanism for perfect and imperfect grains in the grain imperfect grain analyzer of this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Base; 2. Mounting plate; 3. Unloading mechanism; 4. Turntable; 5. Rotary drive mechanism; 6. Material box; 7. Encoder reader; 8. Photoelectric switch; 11. Slide rail; 12. Limit switch; 21. Connecting part; 22. Sensing part; 31. Unloading motor; 32. Rack; 33. Gear; 51. Rotary motor; 52. First pulley; 53. Second pulley; 54. Belt; 91. Chassis; 92. Grain batch feeding mechanism; 9 3. Single grain feeding mechanism; 94. Feeding channel; 95. Perfect and imperfect grain sorting mechanism; 98. Camera; 99. Auxiliary detector; 921. Feed trough; 922. Rotary drive device; 923. Fixing plate; 951. Feeding cylinder; 952. Distribution bin; 953. Distribution mechanism; 991. Support plate; 992. Light source; 9211. Storage chamber; 9231. Feeding port; 9531. Rotating shaft; 9532. Conveying plate. Detailed Implementation

[0031] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0032] Example 1

[0033] like Figure 1 , 2As shown in Figures 3 and 4, the automatic sample collection mechanism for perfect and imperfect particles in this embodiment includes a base 1, two mounting plates 2, two sets of ejection mechanisms 3, two circular turntables 4, and two sets of rotation drive mechanisms 5. The two mounting plates 2 are horizontally arranged and distributed on the base 1 at intervals. The two sets of ejection mechanisms 3 are mounted on the base 1 and connected to the two mounting plates 2 in a corresponding manner. The two sets of ejection mechanisms 3 are used to drive the corresponding mounting plates 2 to move horizontally relative to the base 1. The two turntables 4 are rotatably mounted on the upper ends of the two mounting plates 2 in a corresponding manner. The two sets of rotation drive mechanisms 5 are mounted on the two mounting plates 2 in a corresponding manner and are connected to the two turntables 4 in a corresponding manner to drive the turntables 4 to rotate. The turntables 4 are each equipped with a plurality of material boxes 6 evenly spaced along their circumference.

[0034] The purpose of the automatic sampling mechanism for perfect and imperfect grains in this embodiment is to receive and sample perfect and imperfect grains of different varieties of grains after detection. Specifically, multiple material boxes 6 on one mounting plate 2 are used to receive perfect grains of different varieties of grains, and multiple material boxes 6 on another mounting plate 2 are used to receive imperfect grains of different varieties of grains. Before receiving the material, different varieties of grains are pre-matched with the material boxes 6. During the sampling process, the two mounting plates 2 are driven by two sets of unloading mechanisms 3 and move closer to each other in the left-right direction at the upper end of the base 1. There is a material box 6 on each of the two turntables 4, which is located below the perfect grain discharge port and the imperfect grain discharge port, respectively. When the front end detects that the grain is a perfect or imperfect grain of a certain grain, the rotation drive mechanism 5 drives the turntable 4 to rotate the material box 6, so that the material box 6 matched with the grain variety rotates to the position below the perfect grain discharge port or the imperfect grain discharge port. Afterwards, the corresponding feed boxes 6 are matched sequentially according to the grain type that was fed after testing, ensuring that each feed box 6 can receive either perfect or imperfect grains of the corresponding grain type. This continues until all feed boxes 6 have been received. Then, the unloading mechanism 3 moves the mounting plate 2 towards the end of the base 1 to the side of the discharge port, allowing workers to easily remove the feed box 6 containing grains from the turntable 4 and replace it with a new one in the non-receiving area. After replacement, the unloading mechanism 3 moves the mounting plate 2 in the opposite direction until it returns to the initial receiving position. The entire sampling mechanism is rationally designed, facilitating the receiving of both perfect and imperfect grains. It also allows for categorized receiving based on the grain type and enables unloading after receiving, making it very convenient.

[0035] In a preferred embodiment, the upper end of the base 1 is provided with two slide rails 11 spaced apart from front to back. The slide rails 11 extend in the left-right direction, and the lower ends of the two mounting plates 2 are respectively slidably mounted on the two slide rails 11 by sliders.

[0036] In the above implementation scheme, since the mounting plate 2 needs to move left and right relative to the base 1 to move towards the receiving position and the unloading position, the sliding connection between the mounting plate 2 and the base 1 is achieved through the cooperation of the slide rail 11 and the slider, making the structure more stable and the translation of the mounting plate 2 more accurate.

[0037] In a preferred embodiment, the ejection mechanism 3 includes an ejection motor 31, a rack 32, and a gear 33. The rack 32 is fixed to the upper end of the base 1 in the left-right direction. The ejection motor 31 is mounted on the upper end of the corresponding mounting plate 2, and its motor shaft passes vertically through the mounting plate 2 and is coaxially connected to the gear 33. The gear 33 meshes with the rack 32.

[0038] In the above implementation scheme, during operation, the ejector motor 31 drives the gear 33 to rotate, and the gear 33 moves in the left and right directions relative to the rack 32 it meshes with, thereby driving the entire mounting plate 2 to slide along the slide rail 11, realizing translation towards the feeding position and the ejection position. The structure design is simple and the drive is stable.

[0039] In a preferred embodiment, photoelectric switches 8 are provided on the base 1 at intervals on either side of the mounting plate 2, corresponding to the front or rear sides. A connecting part 21 protrudes from either side of the mounting plate 2, and a sensing part 22 extending downward and adapted to the photoelectric switch 8 is provided on the connecting part 21. The photoelectric switch 8 and the ejector motor 31 are respectively connected to the controller.

[0040] In the above embodiment, when the mounting plate 2 is moved towards the feeding position (that is, towards the upper center of the base 1), it moves to a photoelectric switch 8 near its forward direction. Then, the sensing unit 22 approaches the photoelectric switch 8 and is sensed, and feedback is sent to the controller. The controller then controls the unloading motor 31 to stop, thus stopping the mounting plate 2 at the feeding position. During unloading, the mounting plate 2 is moved towards the corresponding end of the base 1 until the sensing unit 22 approaches another photoelectric switch 8 and is sensed, and feedback is sent to the controller. The controller then controls the unloading motor 31 to stop, thus stopping the mounting plate 2 at the unloading position. This design can achieve positioning of the mounting plate 2 at two extreme positions of translation.

[0041] In this embodiment, the sensing part 22 can be a sheet-like plate.

[0042] In a preferred embodiment, limiters 12 are provided at the left and right ends of the base 1 corresponding to the positions of the connecting part 21.

[0043] In the above implementation scheme, when the mounting plate 2 moves towards the end of the base 1 to the unloading position, the design of the limiter 12 improves the safety of the mounting plate 2 at its stop. This prevents the mounting plate 2 from failing to stop smoothly due to a malfunction of the photoelectric switch 8; the limiter 12 can effectively stop it.

[0044] In this embodiment, the limiter 12 can be any adaptable structure, such as a bracket + rubber column structure, and can be designed at both ends of the trajectory of the translation of the connecting part 21.

[0045] In this embodiment, the lower end of the turntable 4 is mounted on the corresponding mounting plate 2 via a drive shaft coaxially distributed therewith, and the rotary drive mechanism 5 is connected to the drive shaft. Specifically, the drive shaft can be a hollow shaft and can be rotatably connected to the mounting plate 2 via bearings or the like.

[0046] In a preferred embodiment, the rotary drive mechanism 5 includes a rotary motor 51, a first pulley 52, a second pulley 53, and a belt 54. The rotary motor 51 is mounted on the mounting plate 2, and its motor shaft passes vertically through the mounting plate 2 and is coaxially connected to the first pulley 52. ​​The second pulley 53 is coaxially mounted on the drive shaft, and the belt 54 surrounds the first pulley 52 and the second pulley 53.

[0047] In the above implementation scheme, the rotary motor 51 drives the first pulley 52 to rotate, which in turn drives the second pulley 53, the transmission shaft, and the turntable 4 to rotate via the belt 54, thereby achieving circumferential displacement of the material box 6. This structure is simple in design and operates smoothly and stably.

[0048] In a preferred embodiment, the material box 6 passes through the turntable 4, and the bottom of the material box 6 is provided with a code. The mounting plate 2 is provided with a code reader 7, and the code reader 7 and the rotary motor 51 are both connected to the controller.

[0049] In the above implementation scheme, when receiving different classifications of perfect or imperfect grains, after the front end detects whether a certain type of grain is perfect or imperfect, the controller receives the detection information and determines the code of the material box 6 to be moved below the receiving port (for example, if the grain is corn, a certain code of material box 6 corresponds to corn; if the grain is rice, one of the codes of material box 6 corresponds to rice; that is, material box 6 corresponding to corn only holds corn, and material box 6 corresponding to rice only holds rice). During this process, the turntable 4 is driven by the rotary motor 51 to rotate clockwise or counterclockwise. When the material box 6 corresponding to the code is above the code reader 7, the turntable 4 stops rotating. Then, the controller controls the rotary motor 51 to drive the turntable 4 to rotate the material box 6 above the code reader 7 to move it below the receiving port. This achieves automatic matching and receiving of different types of grains with their codes and material boxes 6. This design is very reasonable and can realize intelligent classification and sorting of materials by type.

[0050] In this embodiment, short columns are vertically provided on the periphery of the turntable 4 at the position between every two material boxes 6. A first proximity switch (a in the figure) is provided at any position around the turntable 4. During the rotation of the turntable 4, each short column can pass through the first proximity switch in sequence. The angle and position of the turntable 4 are identified by the sensing of the short column and the first proximity switch. The controller connected to the first proximity switch can then accurately control each rotation of the turntable 4.

[0051] In a preferred embodiment, the turntable 4 is provided with a through hole corresponding to the material box 6. The upper cross-sectional area of ​​the material box 6 is larger than the lower cross-sectional area. The lower part of the material box 6 passes through the through hole, and its upper part is supported on the upper edge of the through hole.

[0052] In the above implementation scheme, due to the design of the material box 6 being wider at the top and narrower at the bottom, the material box 6 can be "hung" in the through hole on the corresponding turntable 4 without falling off. Replacing the material box 6 is also relatively easy; it can simply be pulled upwards.

[0053] Example 2

[0054] like Figure 5The imperfect grain analyzer of this embodiment includes a chassis 91 and a grain batch feeding mechanism 92, a single grain dropping mechanism 93, a dropping channel 94, a perfect grain and imperfect grain sorting mechanism 95, and an automatic sample collection mechanism for perfect grain and imperfect grain as in Example 1 (H in the figure is indicated). The top of the chassis 91 is open, the feeding part of the grain batch feeding mechanism 92 is located in the opening, the feeding end of the single grain dropping mechanism 93 is located below the discharging end of the grain batch feeding mechanism 92, and the upper channel opening of the dropping channel 94 is located at the outlet of the single grain dropping mechanism 93. Below the material end, multiple cameras 98 are spaced around the upper channel opening of the material discharge channel 94. Each camera 98 is connected to a machine vision system. The inlet of the perfect and imperfect grain sorting mechanism 95 is connected to the lower channel opening of the material discharge channel 94. The perfect and imperfect grain sorting mechanism 95 has perfect grain outlets and imperfect grain outlets spaced to the left and right. The two turntables 4 are respectively distributed below the perfect grain outlets and imperfect grain outlets of the perfect and imperfect grain sorting mechanism 95. The left and right side walls of the chassis 91 are provided with outlets for the two mounting plates 2 and the turntables 4 above to slide in and out.

[0055] The main unit of the machine vision system, serving as the controller for the entire machine, is integrated into the chassis 91. A display connected to the controller is mounted on the exterior of the chassis 91, providing real-time feedback of relevant detection data. All electrical components involved in the various devices or mechanisms are connected to this controller, enabling automated and intelligent control. In this embodiment, the machine vision system represents a mature technology currently available on the market and will not be elaborated upon further.

[0056] The work process is as follows:

[0057] Multiple batches of grain samples (of different varieties) are placed into the grain batch feeding mechanism 92 through the top opening of the chassis 91. During the testing process, each batch of grain is fed by the grain batch feeding mechanism 92 into the single grain dropping mechanism 93, where it is dropped grain by grain. Each grain that falls through the dropping channel 94 enters the perfect grain and imperfect grain sorting mechanism 95. During this dropping process, multiple cameras 98 capture images of the single grain from multiple angles at the upper end of the dropping channel 94, and feed these images back to the machine vision system for analysis. The data is then converted into data, displayed on the monitor, and used to determine the appropriate processing time. The grains, whether perfect or imperfect, fall into the perfect / imperfect grain sorting mechanism 95. Based on the machine vision system's judgment, the mechanism executes actions: if it's a perfect grain, it falls through the perfect grain outlet; if it's an imperfect grain, it falls through the imperfect grain outlet. Simultaneously, when the machine vision system detects grain, the rotation drive mechanism 5 of the turntable 4 below the perfect or imperfect grain outlet drives the turntable 4 to rotate until a material box 6 matching the currently detected grain variety is located below the perfect or imperfect grain outlet to receive the grain. This process is repeated for all batches of grain. After all inspections are complete, two sets of unloading mechanisms 3 drive the corresponding turntable 4 and the material box 6 above it out of the corresponding side of the machine housing 91 through the feed port, remove the grains from the material box 6, and then the unloading mechanism 3 pushes the turntable 4 back into the machine housing 91. The entire device has a reasonable structural design and can realize the automatic detection of grain samples of multiple categories and batches, as well as the subsequent sorting and collection of perfect and imperfect grains.

[0058] As a preferred implementation method, such as Figure 6 and 7 As shown, the aforementioned grain batch feeding mechanism 92 includes an annular material trough 921, a rotary drive device 922, and a fixed plate 923. The fixed plate 923 is horizontally mounted in the upper part of the aforementioned housing 91. The material trough 921 has a plurality of storage chambers 9211 spaced apart along its circumference. The storage chambers 9211 are vertically connected. The fixed plate 923 has a discharge port 9231 corresponding to any one of the storage chambers 9211. The rotary drive device 922 is mounted on the lower end of the fixed plate 923 and is connected to the material trough 921 for transmission. It is used to drive the material trough 921 to rotate until any one of the storage chambers 9211 is aligned with the discharge port 9231. The discharge port 9231 constitutes the discharge end of the aforementioned grain batch feeding mechanism 92, and the material trough 921 constitutes the inlet part of the aforementioned grain batch feeding mechanism 92.

[0059] In the above implementation scheme, multiple batches of grain are respectively put into each storage chamber 9211. In the initial state, one storage chamber 9211 is empty (this storage chamber 9211 is initially located below the discharge port 9231, and the lower ends of the other discharge ports 9231 are blocked and closed by the fixing plate 923). During feeding, the rotary drive device 922 drives the trough 921 to rotate one storage chamber 9211, which completes the rotational displacement of one storage chamber 9211. This allows the grain of a single batch in the storage chamber 9211 to fall into the single grain feeding mechanism 93 through the discharge port 9231. After all the grain of that batch has been tested and collected, the next batch feeding operation can continue. The entire grain batch feeding mechanism 92 has a reasonable structural design and can pack multiple batches of grain for orderly feeding.

[0060] It should be further explained that the lower end of the material trough 921 can be rotatably connected to the fixed plate 923 via bearings or other existing rotary assembly structures. The rotary drive device 922 can adopt a belt drive or chain drive structure (which is existing technology and will not be described in detail here). The power for this belt drive or chain drive structure is a servo motor, which is connected to the aforementioned controller. Furthermore, a second proximity switch b is installed on the fixed plate 923, and a sensing device corresponding to each storage cavity 9211 is installed around the material trough 921. When the material trough 921 rotates one level, the sensing device around the corresponding storage cavity 9211 moves close to the second proximity switch b and is sensed. Then, the second proximity switch b feeds back a signal to the controller, which stops the rotary drive device 922. After a certain period of time (that is, the time period for a single batch to complete the inspection), the material trough 921 is automatically driven to rotate one level again to continue feeding.

[0061] In this embodiment, the single grain feeding mechanism 93 is existing technology and can be a product of the patent technology with application number "20202220142519".

[0062] As a preferred implementation method, such as Figure 8 As shown, it also includes an auxiliary detector 99, which includes two support plates 991 and multiple light sources 992. The two support plates 991 are horizontally arranged and spaced vertically. Each of the two support plates 991 has a through hole running vertically through it. The multiple light sources 992 are spaced around the through hole in the circumferential direction and are respectively sandwiched between the two support plates 991. The lower support plate 991 is fitted onto the upper channel opening of the material feeding channel 94. The multiple light sources 992 define multiple shooting areas that correspond one-to-one with the cameras 98. The multiple cameras 98 are respectively arranged around the periphery of the multiple shooting areas.

[0063] In the above implementation scheme, the main purpose of the auxiliary detector 99 is to provide supplemental lighting for the shooting center of the camera 98, that is, to provide supplemental lighting for the fallen single grain of grain, so that the camera 98 can capture a clearer image and ensure the accuracy of the detection data.

[0064] It should be further explained that a pair of photoelectric sensors are arranged on opposite sides of the material feeding channel 94. These sensors are mainly used to detect whether grains have fallen into the through holes. If grains fall, they are detected and the information is fed back to the controller, which then issues a control command to the camera 98. The camera 98 takes pictures in real time. At the same time, the perfect grain and imperfect grain sorting mechanism 95 starts to sort the grains after the perfect grain and imperfect grain information is analyzed by the controller.

[0065] As a preferred implementation method, such as Figure 9 and 10 As shown, the above-mentioned perfect grain and imperfect grain sorting mechanism 95 includes a feeding cylinder 951, a distributing bin 952, and a distributing mechanism 953. The feeding cylinder 951 is vertically arranged at the lower end of the material drop channel 94. The distributing bin 952 is an isosceles trapezoidal bin, the upper end of which is connected and communicates with the lower end of the feeding cylinder 951. The lower parts of both ends of the distributing bin 952 are respectively provided with material outlets. The upper end of the feeding cylinder 951 constitutes the feeding end of the above-mentioned perfect grain and imperfect grain sorting mechanism 95. The two material outlets respectively constitute the perfect grain outlet and the imperfect grain outlet. The distributing mechanism 953 is installed in the distributing bin 952 and is located below the feeding cylinder 951. The distributing mechanism 953 is used to selectively send the fallen grains to one of the material outlets.

[0066] In the above implementation scheme, the photographed grains fall into the feed cylinder 951, and when they fall into the sorting mechanism 953, they are sent by the sorting mechanism 953 to the perfect grain outlet or the imperfect grain outlet, thus completing the automatic sorting operation.

[0067] More specifically, the aforementioned sorting mechanism 953 includes a rotating shaft 9531 and a conveying plate 9532. The rotating shaft 9531 is rotatably mounted between the two side walls of the sorting bin 952. The conveying plate 9532 is mounted on the rotating shaft 9531. One end of the rotating shaft 9531 extends beyond one side wall of the sorting bin 952 and is connected to a power device B for driving its rotation. The power device can be a servo motor, connected to a controller to achieve automated control operation. Initially, the conveying plate 9532 is located below the rotating shaft 9531. After the controller detects and determines whether the grains are perfect or imperfect, the power device drives the rotating shaft 9531 to rotate the conveying plate 9532, rotating it from bottom to top towards the perfect or imperfect grain outlet. This pats and conveys the grains to the perfect or imperfect grain outlet, where they fall.

[0068] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0071] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0073] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic sample collection mechanism for perfect and imperfect grains, characterized in that: The system includes a base (1), two mounting plates (2), two sets of ejection mechanisms (3), two circular turntables (4), and two sets of rotation drive mechanisms (5). The two mounting plates (2) are horizontally arranged and distributed on the base (1) at intervals. The two sets of ejection mechanisms (3) are mounted on the base (1) and connected to the two mounting plates (2) in a corresponding manner. The two sets of ejection mechanisms (3) are used to drive the corresponding mounting plates (2) to move horizontally relative to the base (1). The two turntables (4) are mounted on the upper ends of the two mounting plates (2) in a corresponding manner. The two sets of rotation drive mechanisms (5) are mounted on the two mounting plates (2) in a corresponding manner and connected to the two turntables (4) in a corresponding manner to drive the turntables (4) to rotate. The turntables (4) are equipped with multiple material boxes (6) evenly spaced along their circumference.

2. The automatic sample collection mechanism for perfect and imperfect particles according to claim 1, characterized in that: The upper end of the base (1) is equipped with two slide rails (11) spaced back and forth. The slide rails (11) extend in the left and right direction. The lower ends of the two mounting plates (2) are respectively slidably mounted on the two slide rails (11) by sliders.

3. The automatic sample collection mechanism for perfect and imperfect particles according to claim 2, characterized in that: The ejection mechanism (3) includes an ejection motor (31), a rack (32) and a gear (33). The rack (32) is fixed to the upper end of the base (1) in the left-right direction. The ejection motor (31) is mounted on the upper end of the corresponding mounting plate (2). Its motor shaft passes vertically through the mounting plate (2) and is coaxially connected to the gear (33). The gear (33) meshes with the rack (32).

4. The automatic sample collection mechanism for perfect and imperfect particles according to claim 3, characterized in that: On the base (1), photoelectric switches (8) are provided at intervals on either side of the mounting plate (2) at the front and rear. A connecting part (21) is provided on either side of the mounting plate (2). A sensing part (22) is provided on the connecting part (21) that extends downward and is adapted to the photoelectric switch (8). The photoelectric switch (8) and the unloading motor (31) are respectively connected to the controller.

5. The automatic sample collection mechanism for perfect and imperfect particles according to claim 4, characterized in that: The base (1) is provided with limiters (12) at its left and right ends corresponding to the positions of the connecting part (21).

6. The automatic sample collection mechanism for perfect and imperfect particles according to claim 1, characterized in that: The lower end of the turntable (4) is mounted on the corresponding mounting plate (2) via a transmission shaft that is coaxially distributed with it, and the rotary drive mechanism (5) is connected to the transmission shaft.

7. The automatic sample collection mechanism for perfect and imperfect particles according to claim 6, characterized in that: The rotary drive mechanism (5) includes a rotary motor (51), a first pulley (52), a second pulley (53), and a belt (54). The rotary motor (51) is mounted on the mounting plate (2), and its motor shaft passes vertically through the mounting plate (2) and is coaxially connected to the first pulley (52). The second pulley (53) is coaxially mounted on the drive shaft, and the belt (54) surrounds the first pulley (52) and the second pulley (53).

8. The automatic sample collection mechanism for perfect and imperfect particles according to claim 7, characterized in that: The material box (6) passes through the turntable (4), and the bottom of the material box (6) is provided with a code. The mounting plate (2) is provided with a code reader (7), and the code reader (7) and the rotary motor (51) are both connected to the controller.

9. The automatic sample collection mechanism for perfect and imperfect particles according to claim 8, characterized in that: The turntable (4) is provided with a through hole corresponding to the material box (6). The upper cross-sectional area of ​​the material box (6) is larger than the lower cross-sectional area. The lower part of the material box (6) passes through the through hole, and its upper part is supported on the upper edge of the through hole.

10. A grain imperfect grain analyzer, characterized in that: The system includes a chassis (91) and a grain batch feeding mechanism (92), a single grain dropping mechanism (93), a dropping channel (94), a perfect grain and imperfect grain sorting mechanism (95), and a perfect grain and imperfect grain automatic sampling mechanism as described in any one of claims 1 to 9, all mounted in the chassis (91). The top of the chassis (91) is open, the feeding part of the grain batch feeding mechanism (92) is located in the opening, the feeding end of the single grain dropping mechanism (93) is located below the discharge end of the grain batch feeding mechanism (92), and the upper channel opening of the dropping channel (94) is located below the discharge end of the single grain dropping mechanism (93). Multiple cameras (98) are spaced around the upper channel opening of the material discharge channel (94). All cameras (98) are connected to a machine vision system. The feed end of the perfect and imperfect grain sorting mechanism (95) is connected to the lower channel opening of the material discharge channel (94). The perfect and imperfect grain sorting mechanism (95) has perfect grain outlets and imperfect grain outlets spaced to the left and right. Two turntables (4) are respectively distributed below the perfect grain outlets and imperfect grain outlets of the perfect and imperfect grain sorting mechanism (95). The left and right side walls of the chassis (91) are provided with discharge ports for the two mounting plates (2) and the turntables (4) above to move in and out.

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