TW202342182A - Classification sorting machine capable of screening fruit grains and determining the damage to their appearance - Google Patents

Abstract

A classification sorting machine is disclosed, which is suitable for classifying several materials into several categories, and includes a machine body, a feeding device for inputting the materials, a detection device for detecting the materials, and a transfer device that sequentially transfers corresponding materials to several station positions, a conveying device that conveys the corresponding material for movement, a sorting device, and a control device that determines the grade of the corresponding material based on the detection results. The sorting device has a material collection container and several sorting and conveying units. The material collection container defines several separate collection spaces. Each sorting and conveying unit is controlled by the control device and can rotate between several material distributing positions and guide the materials dropped by the conveyor belt into the corresponding material collection space. Accordingly, the purpose of rapid screening and classification is achieved.

Description

Classification screening machine

The present invention relates to a sorting and screening machine, in particular to a sorting and screening machine.

Traditional fruit screening machines mainly achieve the purpose of screening and classification by obtaining the weight of fruit. However, the method of screening fruit by weight cannot exclude fruit with damaged appearance, and still requires manual secondary screening, which has the disadvantage of being time-consuming and labor-intensive.

In order to improve the above points, a conventional fruit and vegetable selection system disclosed in Chinese Patent Publication No. 113976465A mainly uses an imaging device to analyze the shape data of the fruits and vegetables, determines the appearance of the fruits and vegetables, and then grasps them through a robotic arm. Take your pick of fruits and vegetables. In this way, fruits and vegetables with damaged appearance are eliminated.

However, when multiple conveying paths share only one robotic arm, the actions of analyzing fruits and vegetables and grabbing the preferred fruits and vegetables must wait for each other. This has the disadvantage that the efficiency of screening and sorting does not meet the needs of use, and the cost of the robotic arm is relatively high.

Therefore, the purpose of the present invention is to provide a classification and screening machine that can improve screening and classification efficiency.

Therefore, the classification and screening machine of the present invention is suitable for classifying several materials into several categories, and includes a machine body, a feeding device, a detection device, a transfer device, a conveying device, a sorting device, and a control device.

The feeding device is installed on the machine body and is used to guide the materials to fall downward one by one along a height direction.

The detection device is installed on the machine body and includes two rotatable and spaced rollers, and a camera unit. At least one of the rollers can move between a blocking position and a discharging position. When in the blocking position, The rollers are adjacent to each other and are used to block the material falling from the feeding device and drive the corresponding material to roll. At the unloading position, the rollers are far away from each other and are used to release the corresponding material to fall along the height direction. The camera unit is used to capture images of materials rolling on the rollers within a predetermined shooting time, and output an image data.

The transfer device is installed on the machine body and includes a transfer container with an opening facing upward, and a valve movably connected to the transfer container. The transfer container has an outlet and can be connected to a material receiving position along a width direction. Move between several station positions. At the material receiving position, the transfer container is used to receive the materials dropped by the rollers, and the valve closes the outlet. At each station position, the valve opens the outlet. , and release the material in the transfer container to fall along the height direction.

The conveying device includes a conveyor belt movably installed on the body along a length direction. The conveyor belt is located below the outlet and is used to convey corresponding materials to move along the length direction.

The sorting device includes a material collection container located on one side of the machine body, and several sorting and conveying units. The material collection container defines a plurality of material collection spaces separated along the length direction, and each of the material collection spaces is used to accommodate Corresponding to the type of materials, each sorting and conveying unit is connected to the machine body and defines a sorting channel that forms a level difference along the height direction and extends along the length direction. Each sorting and conveying unit can separate materials in several Rotating between positions, at each material distributing position, the classification channel is used to guide the materials dropped by the conveyor belt into respective receiving spaces.

The control device includes a control unit, the control unit is signal-connected to the feeding device, the detection device, the moving device, the conveying device and the sorting device, and is used to control at least one of the rollers at the carrying position and The movement between the unloading positions, and controlling the transfer container to move to each station position in sequence, and before moving to each station position, first return to the material receiving position, and based on the image data, determine the corresponding The type of material, and according to the type of each material, each sorting and conveying unit is controlled to rotate to the corresponding material sorting position.

The effect of the present invention is that through the special conveying mode of the transfer device and the sorting device, the appearance of the corresponding materials can be automatically detected during the movement of the materials, and the appearance of the corresponding materials can be automatically distinguished into multiple conveying paths, and each Conveying paths can be individually filtered and sorted. In this way, not only can materials be classified according to their appearance, but the efficiency of screening and classification can also be greatly improved.

Referring to Figures 1 and 2, an embodiment of the classification and screening machine of the present invention is suitable for classifying several materials 1 into three categories. Take the material 1 as a fruit and vegetable as an example. One of the categories is perfect grade, which refers to the material 1 that has a good appearance and is not damaged. The other category is the normal level, which refers to materials whose surface damage area is less than a preset value1. The remaining categories are elimination levels, which refer to materials whose surface damage area is greater than a preset value1.

This embodiment includes a machine body 2, a feeding device 3, a detection device 4, a conveying device 5, a transfer device 6, a sorting device 7, and a control device 8.

The machine body 2 includes two rail frames 21 spaced apart along a width direction Y, two lateral brackets 22 spaced apart along the width direction Y and located below the rail frames 21, and two transverse brackets spaced apart along a length direction X. 23, and a front bracket group 24 formed at one end away from the feeding device 3.

The feeding device 3 is installed on the machine body 2 and includes a feeding container 31 with an upward opening and suitable for accommodating the materials 1, and a feeding container 31 rotatably installed on the feeding container 31 and suitable for moving the materials. The material picking unit 32 of 1, and a material picking driving unit 33 for driving the material picking unit 32 to rotate. The feeding container 31 has a feeding opening 311 and a ramp 312 extending along the length direction X and forming a step difference along a height direction Z from the feeding opening 311 . In this embodiment, the material-picking driving unit 33 drives the material-picking unit 32 to rotate through a motor. Since those with ordinary knowledge in the art can deduce the extended details based on the above description, no further description will be given.

The detection device 4 includes a movable wheel seat 41 movably connected to the rail frames 21, two rollers 42 spaced apart along the length direction X, two roller drive units 43, a pitch drive unit 44, and an adapter seat 45 , and a camera unit 46.

One of the rollers 42 is rotatably mounted on one of the transverse brackets 23 . Another roller 42 is rotatably installed on the movable wheel base 41 and can move between a blocking position (as shown in Figure 2) and a discharging position (as shown in Figure 6). In the blocking position, the rollers 42 are adjacent to each other for blocking the material 1 falling from the ramp 312 and driving the corresponding material 1 to roll. In the unloading position, the rollers 42 are moved away from each other to release the corresponding material 1 to fall along the height direction Z.

Each roller driving unit 43 is used to drive a respective roller 42 to rotate. In this embodiment, each roller driving unit 43 drives its respective roller 42 to rotate through a motor. Since those with ordinary knowledge in the art can deduce the extended details based on the above description, no further description will be given.

Referring to Figures 2 and 3, the wheelbase drive unit 44 is installed on the machine body 2 and has a motor 441 installed on the machine body 2 and adjacent to one of the transverse brackets 23, and a motor 441 rotatably installed on the other transverse bracket 23. A transmission wheel 442, and a connecting piece 443 that rotatably connects the motor 441 and the transmission wheel 442. In this embodiment, the connecting member 443 is a belt and has two parallel moving sections 444 . One of the moving sections 444 passes through the movable wheel base 41 along the length direction X and is fixed to the movable wheel base 41 .

The connecting seat 45 is installed on the body 2 and is located below the rollers 42, and has an inclined surface 451 that forms a difference along the height direction Z and extends along the length direction X.

The camera unit 46 is installed on the body and above the rollers 42, and is used to capture images of the material 1 rolling on the rollers 42 within a predetermined shooting time, and output an image data M. In this embodiment, the shooting time ranges from 3 to 10 seconds, preferably 5 seconds or 3 seconds.

The conveying device 5 includes two rotating shafts 51 , a conveying belt 52 , a dividing unit 53 , and a conveying driving unit 54 .

The rotating shafts 51 are rotatably connected to the body 2 and adjacent to a front end and a rear end of the body 2, and are spaced apart along the length direction X.

The conveyor belt 52 extends along the length direction X and is rotatably connected to the rotating shafts 51 . The conveyor belt 52 is used to convey the corresponding material 1 along the length direction.

The separation unit 53 is connected to the machine body 2 and located above the conveyor belt 52 , and defines a plurality of isolation channels 531 extending along the length direction X. In this embodiment, the number of isolation channels 531 is five, but it is not limited thereto.

In this embodiment, the conveyor driving unit 54 drives one of the rotating shafts 51 to rotate through a motor and a pulley set, and drives the conveyor belt 52 to rotate. Since those with ordinary knowledge in the art can deduce the extended details based on the above description, no further description will be given.

Referring to FIGS. 2 and 4 , the transfer device 6 is installed on the machine body 2 and includes a transfer container 61 with an upward opening, a valve 62 , two slide rails 63 , and a moving drive unit 64 .

The transfer container 61 has an outlet 611 .

The valve 62 is movably connected to the transfer container 61 and is used to close the outlet 611 or open the outlet 611.

The slide rails 63 are spaced apart along the length direction Move along the slide rails 63 .

The transfer driving unit 64 has a motor 641 installed on the body 2 and adjacent to one of the lateral brackets 22, a transmission wheel 642 rotatably installed on the other lateral bracket 22, and a rotatably connected motor 641 The connection piece 643 with the transmission wheel 642 . In this embodiment, the connecting member 643 is a belt and has two parallel moving sections 644 . One of the moving sections 644 passes through the transfer container 61 along the width direction Y and is fixed to the transfer container 61 .

It is worth mentioning that the transfer container 61 can be driven by the transfer driving unit 64 and move along the width direction Y between a material receiving position (as shown in Figure 6) and several station row positions (as shown in Figure 7). When the material is in the material position, the opening of the transfer container 61 faces the lower end of the slope 451 and is used to receive the material 1 dropped by the rollers 42, and the valve 62 closes the outlet 611. At each station position, the outlet 611 faces the corresponding isolation channel 531, and the valve 6 opens the outlet 611, and the material 1 released from the transfer container 61 falls along the height direction Z to the corresponding isolation channel 531. within. In this embodiment, the number of station row positions corresponds to the number of isolation channels 531 , which is five, but is not limited to this.

Referring to Figures 2 and 5, the sorting device 7 includes a receiving container 71 located on one side of the front support group 24, a driven axle 72 inserted through the front support group 24 and spaced apart along the length direction X. A driven wheel shaft 73 and a driving wheel shaft 74 , a plurality of sorting and conveying units 75 connected to the front support group 24 , and a plurality of sorting drive units 76 installed on the front support group 24 .

The material receiving container 71 defines a plurality of material receiving spaces 711 separated along the length direction X. In this embodiment, the number of the material collection spaces 711 corresponds to three classification categories. One of the collection spaces 711 adjacent to the conveyor belt 52 will accommodate perfect grade materials 1 . Another material collection space 711 away from the conveyor belt 52 will accommodate normal grade materials 1 . The remaining material collection space 711 will accommodate the eliminated material 1.

Each sorting and conveying unit 75 is located between the respective isolation channel 531 and the material receiving container 71, and can rotate about the passive wheel shaft 72, and defines a level difference along the height direction Z and along the length direction. X extended classification channel 751.

Each sorting driving unit 76 has a motor 761, a driven wheel 762 rotatably sleeved between the driven wheel shaft 72 and the respective sorting conveying unit 75, and a driven wheel 762 rotatably sleeved between the driven wheel shaft 72 and the respective sorting conveying unit 75. The driven wheel 763 of 73, a driving wheel 764 rotatably sleeved on the driving wheel shaft 74, a gear 765 meshing with the motor 761 and connected to the driving wheel 764, and two connecting pieces 766. In this embodiment, each of the connecting members 766 is a belt. One of the connecting parts 766 connects the driving wheel 764 and the driven wheel 763 , and the other connecting part 766 connects the driven wheel 763 and the driven wheel 762 .

It is worth mentioning that each sorting and conveying unit 75 can be driven by the sorting drive unit 76 to rotate between three material sorting positions with the driven wheel shaft 72 as the center. At each material distributing position, the classification channel 751 is used to guide the materials 1 dropped from the conveyor belt 52 into respective receiving spaces 711 .

Referring to FIGS. 1 and 2 , the control device 8 includes a control unit 81 and a human-machine interface 82 signal connected to the control unit 81 . The control unit 81 is connected with the signal driving unit 33 , the roller driving unit 43 , the wheel base driving unit 44 , the camera unit 46 , the conveying driving unit 54 , the transfer driving unit 64 , and the sorting driving unit 76 , used to control the camera unit 46 to capture images, control the rotation of the material picking unit 32, control the movement of the movable wheel base 41 and the transfer container 61, and determine the type of the corresponding material 1 based on the image data M, and according to For each type of material 1, each sorting and conveying unit 75 is controlled to rotate to a corresponding sorting position. The human-machine interface 82 is used for inputting and outputting a control command, and for displaying related information.

When the present invention classifies and screens the materials 1, the following steps are implemented through the control unit 81:

Referring to Figures 2 and 6, the material-allocating drive unit 33 drives the material-allocating unit 32 to rotate, so that the material 1 in the feeding container 31 is stirred by the material-allocating unit 32, and passes through the material inlet 311. The ramp 312 drops down to the rollers 42 in the blocking position.

It is worth mentioning that the control unit 81 will determine the corresponding materials 1 to enter one of the isolation channels 531 sequentially according to the order in which each material 1 falls from the feeding container 31 . For example, material 1 numbered #1 will be arranged to enter the isolation channel 531 numbered #A, material 1 numbered #2 will be arranged to enter the isolation channel 531 numbered #B, and material 1 numbered #3 will Material 1, which is arranged to enter isolation channel 531 numbered #C and numbered #4, will be arranged to enter isolation channel 531 numbered #D, and material 1 numbered 5 will be arranged to enter isolation channel 531 numbered #E, numbered 6 Material 1 will be arranged to enter the isolation channel 531 numbered #A..., material 1 numbered 10 will be arranged to enter the isolation channel 531 numbered #E, and so on.

The roller driving units 43 drive the rollers 42 to rotate, and at the same time control the camera unit 46 to capture images within the shooting time. At this time, the rollers 42 will drive the corresponding material 1 to turn over during the rotation process, and during the turning process of the corresponding material 1, the camera unit 46 can obtain the appearance image of the corresponding material 1 and output the image data M to the control unit 81.

Thereby, the control unit 81 determines the type of the corresponding material 1 based on the image data M, and controls the corresponding sorting drive unit 76 to drive the respective sorting and conveying units 75 to rotate according to the type of each material 1. Corresponding material distribution position.

The wheelbase driving unit 44 drives the movable wheel seat 41 and the corresponding roller 42 to move along the length direction X to the unloading position. At this time, since the distance between the rollers 42 becomes larger, the corresponding material 1 will fall downward along the height direction Z and roll along the slope 451 of the connecting seat 45 to the transfer container 61 located at the material receiving position. within.

Referring to Figures 7 and 8, the transfer driving unit 64 drives the transfer container 61 to move to the corresponding station position along the width direction Y. Taking the material 1 numbered #1 as an example, the transfer container 61 will move to the corresponding station position. The exit 611 faces the isolation channel 531 numbered #A. Thereby, the valve 62 will move to open the outlet 611, allowing the material 1 numbered #1 to roll downward to the isolation channel 531 numbered #A.

When the corresponding material 1 rolls to the corresponding isolation channel 531, it will be driven by the conveyor belt 52 and move toward the material receiving container 71 along the length direction X. It is worth mentioning that the materials 1 dropped sequentially will be arranged at intervals along the length direction X in the isolation channels 531 due to time differences.

Referring to Figures 8, 9 and 10, when the corresponding material 1 moves to the end of the conveyor belt 52, it will fall from top to bottom along the height direction Z to the corresponding sorting and conveying unit 75. Due to the corresponding The sorting and conveying unit 75 has rotated to the corresponding material sorting position according to the type of the corresponding material 1. Therefore, the corresponding material 1 will follow the corresponding classification channel 751 and enter the corresponding material receiving space 711.

For example, after screening, material 1 numbered #1 is classified into a perfect grade and will fall into the material collection space 711 adjacent to the conveyor belt 52 . After being screened, material 1 numbered #2 will be classified into the normal level and will fall into the material collection space 711 away from the conveyor belt 52 . After being screened, material 1 numbered #3 will be classified into the elimination level and will fall into the receiving space 711 in the middle.

Through the above description, the advantages of the foregoing embodiments can be summarized as follows:

1. The present invention can screen out materials 1 that have a good appearance and no damage, or have a small surface damage area, or have a large surface damage area and need to be eliminated based on the image data M. And when screening these materials 1, big data analysis and deep learning image recognition technology can be used to improve the recognition rate and improve the recognition efficiency.

2. What is important is that the present invention can automatically distinguish multiple conveying paths during the movement of the materials 1 through the special conveying methods of the transfer device 6 and the sorting device 7, and each conveying path can Classify each. Thereby, the actions of screening the materials 1, transporting the materials 1, and classifying the materials 1 can be performed simultaneously, thereby greatly improving the efficiency of screening and classification.

However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. All simple equivalent changes and modifications made based on the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of this invention.

1:Material 2: Body 21:Rail frame 22: Side bracket 23: Horizontal bracket 24: Front bracket group 3: Feeding device 31: Feeding container 311:Inlet port 312:Ramp 32: Material picking unit 33: Material driving unit 4:Detection device 41: Movable wheel base 42:Roller 43:Roller drive unit 44: Wheel base drive unit 441: Motor 442: Transmission wheel 443: Connector 444:Moving segment 45: Connector seat 451: Incline 46:Camera unit 5: Conveying device 51:Rotating axis 52: Conveyor belt 53: Separation unit 531:Isolation channel 54:Conveyor drive unit 6: Transfer device 61: Transfer container 611:Export 62:Valve 63:Slide rail 64:Transfer drive unit 641: Motor 642: Transmission wheel 643: Connector 644:Moving segment 7: Sorting device 71: Receiving container 711: Material collection space 72: Passive axle 73: Driven axle 74: Driving axle 75: Sorting and conveying unit 751: Classification channel 76: Sorting drive unit 761: Motor 762:Passive wheel 763: driven wheel 764: Driving wheel 765:Gear 766: Connector 8:Control device 81:Control unit 82: Human-computer interface Z: Height direction Y: width direction X: length direction M: image data #1~#5: Number #A~#E:number

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view illustrating an embodiment of the classification and screening machine of the present invention; Figure 2 is a cross-sectional view of this embodiment; Figure 3 is an incomplete partial perspective view illustrating the wheel pitch driving unit of this embodiment; Figure 4 is an incomplete partial perspective view illustrating a transfer device of this embodiment; Figure 5 is a partial cross-sectional view illustrating a sorting device of this embodiment; Figure 6 is a partially enlarged cross-sectional view, illustrating that a roller of this embodiment is located at a discharging position; Figure 7 is an incomplete partial perspective view illustrating a transfer container located at a station position in this embodiment; Figure 8 is a top view of this embodiment; Figure 9 is a partially enlarged cross-sectional view illustrating that a sorting unit of this embodiment is located at a material distribution position; and Figure 10 is a perspective view similar to Figure 9, but the sorting unit is located in another distributing position.

1:Material

2: Body

21:Rail frame

22: Side bracket

23: Horizontal bracket

24: Front bracket group

3: Feeding device

31: Feeding container

311:Inlet port

312:Ramp

32: Material picking unit

33: Material driving unit

4:Detection device

41: Movable wheel base

42:Roller

45: Connector seat

451: Incline

46:Camera unit

5: Conveying device

51:Rotating axis

52: Conveyor belt

53: Separation unit

531:Isolation channel

54:Conveyor drive unit

6: Transfer device

61: Transfer container

611:Export

62:Valve

63:Slide rail

7: Sorting device

71: Receiving container

711: Material collection space

72: Passive axle

75: Sorting and conveying unit

751: Classification channel

76: Sorting drive unit

Z: Height direction

X: length direction

Claims (10)

A sorting and screening machine suitable for classifying several materials into several categories, including: an organism; A feeding device is installed on the machine body and is used to guide the materials to fall downward one by one along a height direction; A detection device is installed on the machine body and includes two rotatable and spaced apart rollers, and a camera unit. At least one of the rollers can move between a blocking position and a discharging position. When in the blocking position, , the rollers are adjacent to each other, used to block the material dropped by the feeding device, and drive the corresponding material to roll. At the unloading position, the rollers are far away from each other, used to release the corresponding material along the height direction. Drop, the camera unit is used to capture images of materials rolling on the rollers within a predetermined shooting time, and output an image data; A transfer device is installed on the machine body and includes a transfer container with an upward opening, and a valve movably connected to the transfer container. The transfer container has an outlet and can be at a material receiving position along a width direction. It moves between several station positions. At the material receiving position, the transfer container is used to receive the materials dropped by the rollers, and the valve closes the outlet. At each station position, the valve opens the exit, and release the material in the transfer container to fall along the height direction; A conveyor device includes a conveyor belt movably installed on the machine body along a length direction, the conveyor belt is located below the outlet, and is used to convey corresponding materials to move along the length direction; and A sorting device includes a material collection container located on one side of the machine body, and several sorting and conveying units. The material collection container defines a plurality of material collection spaces separated along the length direction, and each of the material collection spaces is used for Accommodating materials of corresponding categories, each sorting and conveying unit is connected to the machine body and defines a sorting channel that forms a level difference along the height direction and extends along the length direction. Each sorting and conveying unit can be operated in several categories. Rotate between material positions, and at each material distributing position, the classification channel is used to guide the materials dropped by the conveyor belt into respective receiving spaces; and A control device, including a control unit whose signals are connected to the feeding device, the detection device, the moving device, the conveying device and the sorting device, for controlling at least one of the rollers at the carrying position Move between the unloading position, and control the transfer container to move to each station position in sequence, and before moving to each station position, first return to the material receiving position, and determine the corresponding position based on the image data The type of material, and according to the type of each material, control each sorting and conveying unit to rotate to the corresponding sorting position. The sorting and screening machine as claimed in claim 1, wherein the feeding device includes a feeding container with an upward opening and is suitable for accommodating the materials, and a feeding container that is rotatably mounted on the feeding container and is suitable for turning the material. A feeding unit for materials, and a feeding driving unit for driving the feeding unit to rotate. The feeding container has a feeding port, and a ramp extending from the feeding port toward the rollers, The ramp is suitable for guiding corresponding materials to roll from the material inlet to the rollers at the blocking positions. The classification and screening machine as claimed in claim 1, wherein the body includes two rail frames spaced apart along the width direction, and two transverse brackets spaced apart along the length direction, and the detection device further includes a movably connected The rail frames have a movable wheel seat, a two-roller drive unit, and a pitch drive unit. One roller is rotatably installed on one of the transverse brackets, and the other roller is rotatably installed on the movable wheel seat. Each roller The drive unit is connected to the control unit via signals and is used to drive the respective rollers to rotate. The wheelbase drive unit is connected to the control unit through signals and has a motor installed on the body and adjacent to one of the transverse brackets, a rotatable A transmission wheel installed on another transverse bracket, and a connecting piece that rotatably connects the motor and the transmission wheel and is fixed to the movable wheel base. The motor is used to drive the movable wheel base and the other roller edge. This lengthwise movement. The sorting and screening machine according to claim 3, wherein the detection device further includes a connecting seat between the rollers and the transfer container, the connecting seat has a gap formed along the height direction and extending along the length direction. The inclined plane is used to guide the corresponding materials to roll from the rollers to the transfer container. The sorting and screening machine according to claim 1, wherein the body includes two lateral brackets spaced apart along the width direction, and the transfer device further includes at least one lateral bracket that passes through the transfer container along the width direction and is connected to the lateral brackets. The slide rail of the bracket, and a transfer drive unit, the transfer drive unit is signal-connected to the control unit, and has a motor installed on the body and adjacent to one of the lateral brackets, and a motor rotatably installed on the other lateral bracket. The transmission wheel, and a connecting piece that rotatably connects the motor and the transmission wheel and is fixed to the transfer container, the motor is used to drive the transfer container to move along the width direction. The sorting and screening machine according to claim 5, wherein the transfer device includes two slide rails, and the slide rails are spaced apart along the length direction and the height direction. The sorting and screening machine according to claim 1, wherein the conveying device further includes two rotating shafts, a dividing unit, and a conveying drive unit. The rotating shafts are rotatably connected to the body and spaced apart along the length direction. The conveyor belt is rotatably connected to the rotating shafts. The separation unit is connected to the machine body and is located above the conveyor belt, and defines a plurality of isolation channels extending along the length direction. Each isolation channel is used to separate each part of the conveyor belt. For materials dropped from other stations, the signal of the conveyor drive unit is connected to the control unit and used to drive one of the rotating shafts to rotate, thereby driving the conveyor belt to rotate. The sorting and screening machine as claimed in claim 1, wherein the machine body further includes a front bracket group far away from the feeding device, the sorting device further includes a passive axle inserted through the front bracket group, and several Each sorting drive unit can rotate around the passive wheel shaft. Each sorting drive unit is connected to the control unit with a signal for driving each sorting conveyor unit to rotate. The sorting and screening machine as claimed in claim 8, wherein the sorting device further includes a driven wheel axle and a driving wheel axle that are inserted through the front bracket group and spaced apart from the driven wheel axle along the length direction, and each of the driven wheel axles is The sorting drive unit is installed on the front bracket group and has a motor, a driven wheel rotatably set between the driven wheel shaft and the respective sorting and conveying unit, and a driven wheel rotatably placed between the driven wheel shaft. a driven wheel, a driving wheel rotatably sleeved on the driving wheel shaft, a gear meshing with the motor and connected to the driving wheel, and two connecting parts, one of which connects the driving wheel and the driven wheel, Another connecting member connects the driven wheel and the driven wheel, and the motor is used to drive the driving wheel to rotate. The classification and screening machine of claim 1, wherein the control device further includes a human-machine interface signal connected to the control unit, the human-machine interface being used to input and output a control command, and to display relevant information.

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