Grain airflow sorting mechanism and grain sorting equipment

Abstract

The embodiment of the utility model relates to a grain airflow sorting mechanism and grain sorting equipment. The grain airflow sorting mechanism comprises a body, at least one infrared sensor and at least one high-frequency electromagnetic valve, the body is divided into a feeding part, a detecting part and a sorting part from top to bottom; and a feeding hole is formed in the axial direction of the feeding part. The detection part is provided with a first to-be-sorted grain channel and a detection hole; the first to-be-sorted grain channel is communicated with the feeding hole; the probe hole is perpendicular to and communicated with the first to-be-sorted grain channel; the sorting part is provided with a second to-be-sorted grain channel, at least one layer of gas channel and sorting holes; the second to-be-sorted grain channel is communicated with the first to-be-sorted grain channel; the gas channel and the sorting hole are communicated with the second to-be-sorted grain channel; the sorting holes are opposite to the gas channel; the infrared sensor is arranged on the detection part, a probe of the infrared sensor is aligned with the detection hole, and the particle state of the to-be-sorted grains is detected; the high-frequency electromagnetic valve is located at the gas channel and switches the opening and closing states of the gas channel.

Description

Technical Field

[0001] The utility model relates to the technical field of grain sorting, in particular to a grain airflow sorting mechanism and grain sorting equipment. Background Art

[0002] Grain sorting can accurately classify impurities and defective grains in grains, thereby improving the quality of grain inspection and ensuring the accuracy and efficiency of replacing manual quality inspection in the grain procurement process. Existing grain screening technology mainly uses a camera to capture grain images, then processes the images in the background, and then compares the data models to distinguish the different varieties and imperfect grains mixed in the grains, make quantitative statistics, and finally make weight estimates based on the average measurement and weight model. The disadvantage of this is that the measurement deviation is large. In actual application, different types of grains and grains from different regions and varieties require a lot of post-modeling work, which makes the cost of grain sorting very high, the response time is long, and the accuracy is difficult to meet national standards. Utility Model Content

[0003] The utility model aims to provide a grain airflow sorting mechanism, which utilizes high-frequency airflow to sort target grains and non-target grains in the grains to be sorted, and has simple operation and high accuracy.

[0004] To achieve the above-mentioned purpose, the utility model provides a grain airflow sorting mechanism, the grain airflow sorting mechanism comprising: a body, at least one infrared sensor and at least one high-frequency electromagnetic valve;

[0005] The main body is divided into a feeding part, a detection part and a sorting part from top to bottom;

[0006] The feeding part is provided with a feeding hole in the axial direction, and the feeding hole is used for external grain taking and placing equipment to input the grains to be sorted into the grain airflow sorting mechanism grain by grain;

[0007] The detection part is provided with a first passage for grains to be sorted and a detection hole; the first passage for grains to be sorted is connected to the feeding hole; the detection hole is arranged on the side wall of the detection part, and

[0008] The first passage for grains to be sorted is arranged vertically and communicated with the first passage for grains to be sorted;

[0009] The sorting section is provided with a second passage for grains to be sorted, at least one layer of gas passages and sorting holes; the second passage for grains to be sorted is connected with the first passage for grains to be sorted, and is used to input the sorted target grains into an external target grain box, and a weighing mechanism weighs the target grains; the gas passage and the sorting holes are arranged on the side wall of the sorting section, and are connected with the second passage for grains to be sorted; the gas passage is used for inputting airflow; the sorting holes are arranged opposite to the gas passage, and are used to output the sorted non-target grains out of the grain airflow sorting mechanism under the impetus of the airflow;

[0010] The infrared sensor is arranged at the detection part, the probe of the infrared sensor is aligned with the detection hole, and is electrically connected to the external control processing device, so as to detect the particle state of the grain to be sorted under the control of the external control processing device;

[0011] The high-frequency electromagnetic valve is located at the gas channel and is electrically connected to the external control processing device, so as to switch the opening and closing state of the gas channel under the control of the external control processing device.

[0012] Preferably, the grain airflow sorting mechanism further comprises an air pipe joint; the air pipe joint is connected to the gas channel and is used for connecting the grain airflow sorting mechanism with ventilation equipment.

[0013] Preferably, the feeding part, the detection part and the sorting part are integrally connected; the feeding part and the detection part are rectangular parallelepiped, and the length of the detection part is smaller than the length of the feeding part, and the height of the detection part is greater than the height of the feeding part; the cross-section of the sorting part is a polygon.

[0014] Preferably, a connection hole is reserved on the top surface of the feeding part, and the connection hole is arranged around the feeding hole.

[0015] Preferably, a pair of first infrared sensor mounting grooves and a pair of second infrared sensor mounting grooves are reserved on the outer wall of the detection part; the first infrared sensor mounting groove and the second infrared sensor mounting groove are spaced apart, and the vertical distance between the first infrared sensor mounting groove and the feeding part is smaller than the vertical distance between the second infrared sensor mounting groove and the feeding part.

[0016] Preferably, the sorting part has two layers of gas channels and sorting holes, and the gas channels of each layer are adjacent to each other vertically.

[0017] Further preferably, the number of the gas channels and sorting holes in each layer is 3 pairs.

[0018] Preferably, the number of the infrared sensors is two pairs.

[0019] Preferably, the body is made of plastic or metal.

[0020] In a second aspect, an embodiment of the utility model provides a grain sorting device, which includes the grain airflow sorting mechanism described in any one of the first aspects above.

[0021] The embodiment of the utility model provides a grain airflow sorting mechanism. When the sorted grain enters the detection part through the feeding port, the infrared sensor is triggered to detect the particle state of the grain to be sorted. If the grain particles that trigger the infrared sensor are target grains, they fall directly into the target grain box under the action of gravity for collection, which is convenient for the subsequent weighing mechanism to weigh; when the grain particles that trigger the infrared sensor are non-target grains, the high-frequency solenoid valve is quickly started to open the gas channel, so that the airflow enters the sorting part, and the non-target grains are blown out through the sorting port to the external non-target grain box for collection, that is, the high-frequency airflow is used to achieve grain sorting. The grain airflow sorting mechanism is simple to operate, can quickly distinguish non-target grains from target grains, reduces subsequent metering deviations, saves modeling work, saves grain sorting time, and improves sorting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural diagram of a grain airflow sorting mechanism provided in an embodiment of the utility model;

[0023] Figure 2 A cross-sectional view of a grain airflow sorting mechanism provided in an embodiment of the utility model;

[0024] Figure 3 A bottom view of the grain airflow sorting mechanism provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments.

[0026] Figure 1 The structure diagram of the grain airflow sorting mechanism provided by the embodiment of the utility model is as follows: Figure 2 A cross-sectional view of a grain airflow sorting mechanism provided in an embodiment of the utility model, combined with Figure 1 and Figure 2 As shown in the figure, a grain airflow sorting mechanism provided by an embodiment of the utility model mainly includes: a main body 1, an infrared sensor 2 and a high-frequency electromagnetic valve 3.

[0027] The main body 1 is a mechanical part of the grain airflow sorting mechanism, and is divided into a feeding part 11, a detection part 12 and a sorting part 13 from top to bottom.

[0028] The feeding part 11 is mainly used for feeding the grains to be sorted, and the shape of the feeding part 11 can be a cuboid. A feeding hole 110 is provided in the axial direction of the feeding part 11. The setting of the feeding hole 110 facilitates the external grain picking and placing equipment to input the grains to be sorted into the grain airflow sorting mechanism grain by grain. Among them, the external grain picking and placing equipment can be a manipulator.

[0029] In a preferred example, the top surface of the feeding part 11 is reserved with connection holes 111. The connection holes 111 are arranged around the feeding hole 110, and in this example, they are arranged at the four corners of the cuboid. The arrangement of the connection holes 111 facilitates the fixing of the grain airflow sorting mechanism with other equipment.

[0030] The detection part 12 is provided with a first passage 120 for grains to be sorted and a detection hole 121. The first passage 120 for grains to be sorted is connected with the feeding hole 110, so that the grains to be sorted can vertically enter the detection part 12 from the feeding part 11. The detection hole 121 is arranged on the side wall of the detection part 12, and is vertically arranged and connected with the first passage 120 for grains to be sorted. In the present application, the shape of the detection part 12 is also a rectangular parallelepiped, and the length of the detection part 12 is less than the length of the feeding part 11, and the height of the detection part 12 is greater than the height of the feeding part 11, which facilitates the placement of the infrared sensor 2.

[0031] In a preferred embodiment, in order to facilitate comprehensive detection of the grains to be sorted from different angles, Figure 1 As shown in , the outer side wall of the detection part 12 is reserved with a pair of first infrared sensor mounting grooves 122 and a pair of second infrared sensor mounting grooves 123. The first infrared sensor mounting groove 122 and the second infrared sensor mounting groove 123 are arranged at intervals, and the vertical distance between the first infrared sensor mounting groove 122 and the feeding part 11 is smaller than the vertical distance between the second infrared sensor mounting groove 123 and the feeding part 11, that is, the first infrared sensor mounting groove 122 is below the second infrared sensor mounting groove 123.

[0032] The sorting part 13 is the main structure of the grain airflow sorting mechanism for sorting the grains to be sorted, and is provided with a second grain channel 130 to be sorted, at least one layer of gas channels 131 and sorting holes 132. Among them, the second grain channel 130 to be sorted is connected with the first grain channel 120 to be sorted, so that the sorted target grains can be directly input into the external target grain box. The gas channel 131 and the sorting holes 132 are arranged on the side wall of the sorting part 13, and are both connected with the second grain channel 130 to be sorted. The gas channel 131 is used for the input of airflow. The sorting hole 132 is arranged opposite to the gas channel 131, and the non-target grains obtained by sorting can be output outside the grain airflow sorting mechanism under the action of the airflow.

[0033] In a specific embodiment, the sorting part 13 has two layers of gas channels 131 and sorting holes 132, and the gas channels 131 of each layer are adjacent to each other. Figure 3 As shown, the cross section of the sorting portion 13 is a polygon, specifically a hexagon, that is, in this example, there are three pairs of gas channels 131 and sorting holes 132 in each layer, and the gas channels 131 of the two layers are located one above and one below.

[0034] In this example, the feeding part 11, the detection part 12 and the sorting part 13 are integrally connected, and the material may be plastic or metal.

[0035] like Figure 1 As shown in the figure, the infrared sensor 2 is arranged on the detection part 12, and the probe of the infrared sensor 2 is aligned with the detection hole 121, so as to facilitate the detection of the grains to be sorted. The infrared sensor 2 is electrically connected to the external control processing device, and can detect the particle state of the grains to be sorted under the control of the external control processing device. The external control processing device can screen the target particles according to the detection result of the infrared sensor 2.

[0036] The number of infrared sensors 2 is at least one pair. In a specific example, the number of infrared sensors 2 is two pairs, which are respectively arranged in the first infrared sensor installation groove 122 and the second infrared sensor installation groove 123, and can detect the grains to be sorted from different angles, thereby achieving all-round detection of the grains to be sorted.

[0037] like Figure 2 As shown in , the high-frequency solenoid valve 3 is located at the gas channel 131. The high-frequency solenoid valve 3 is electrically connected to the external control processing device, and can switch the open and closed state of the gas channel 131 under the control of the external control processing device, thereby controlling the airflow entering the body 1. The number of high-frequency solenoid valves 3 is at least one, that is, the number of high-frequency solenoid valves 3 matches the number of gas channels 131.

[0038] For example Figure 1 As shown in FIG. 1 , in a specific example, the grain airflow sorting mechanism further includes an air pipe connector 4. The air pipe connector 4 is connected to the air channel 131 and is a mechanism for connecting the grain airflow sorting mechanism with the ventilation device.

[0039] The above introduces the components of the grain airflow sorting mechanism and the connection relationship between the components. The following briefly introduces the working principle of the grain airflow sorting mechanism.

[0040] After the grains are photographed and identified by at least two cameras, if the identification result is that the grains are to be sorted, the robot will put the single grains of the grains to be sorted into the feeding port 110 within a preset time interval.

[0041] The infrared sensor 2 is triggered to detect the grains to be sorted, and sends the detected state of the grains to an external control processing device.

[0042] The external control processing device processes the state of the grain particles to generate an identification result. When the identification result is the target grain, under the action of gravity, it is directly input into the external target grain box through the second grain channel 130 to be sorted, so that the weighing mechanism can weigh the target grain later. When the identification result is a non-target grain, such as an incomplete grain or other grain grain, the external control processing device sends a drive signal to the high-frequency solenoid valve 3, so that the high-frequency solenoid valve 3 starts quickly, and then the corresponding gas channel 131 is opened, and the ventilation device inputs the gas into the gas channel 131 through the air pipe joint 4. Under the high-frequency airflow, the non-target grain is blown out into the non-target grain box through the sorting hole 132 opposite to the gas channel 131, which is convenient for subsequent weighing.

[0043] Thus, through simple operations, non-target grains and target grains can be quickly distinguished, which reduces subsequent measurement deviations, eliminates modeling work, saves grain sorting time, and improves sorting accuracy.

[0044] The embodiment of the utility model provides a grain airflow sorting mechanism. When the sorted grain enters the detection part through the feeding port, the infrared sensor is triggered to detect the particle state of the grain to be sorted. If the grain particles that trigger the infrared sensor are non-target grains, they fall directly into the target grain box under the action of gravity for collection, which is convenient for the subsequent weighing mechanism to weigh; when the grain particles that trigger the infrared sensor are non-target grains, the high-frequency solenoid valve is quickly started to open the gas channel, so that the airflow enters the sorting part, and the non-target grains are blown out through the sorting port to the external non-target grain box for collection, that is, the high-frequency airflow is used to achieve grain sorting. The grain airflow sorting mechanism is simple to operate, can quickly distinguish non-target grains from target grains, reduces subsequent metering deviations, saves modeling work, saves grain sorting time, and improves sorting accuracy.

[0045] The embodiment of the utility model further provides a grain sorting device, which includes the grain airflow sorting mechanism described above.

[0046] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A grain airflow sorting mechanism, characterized in that: The grain airflow sorting mechanism comprises: a body, at least one infrared sensor and at least one high-frequency electromagnetic valve; The main body is divided into a feeding part, a detection part and a sorting part from top to bottom; The feeding part is provided with a feeding hole in the axial direction, and the feeding hole is used for external grain taking and placing equipment to input the grains to be sorted into the grain airflow sorting mechanism grain by grain; The detection part is provided with a first passage for grains to be sorted and a detection hole; the first passage for grains to be sorted is connected with the feeding hole; the detection hole is arranged on the side wall of the detection part, and is arranged vertically with and connected to the first passage for grains to be sorted; The sorting section is provided with a second passage for grains to be sorted, at least one layer of gas passages and sorting holes; the second passage for grains to be sorted is connected with the first passage for grains to be sorted, and is used to input the sorted target grains into an external target grain box, and a weighing mechanism weighs the target grains; the gas passage and the sorting holes are arranged on the side wall of the sorting section, and are connected with the second passage for grains to be sorted; the gas passage is used for inputting airflow; the sorting holes are arranged opposite to the gas passage, and are used to output the sorted non-target grains out of the grain airflow sorting mechanism under the impetus of the airflow; The infrared sensor is arranged at the detection part, the probe of the infrared sensor is aligned with the detection hole, and is electrically connected to the external control processing device, so as to detect the particle state of the grain to be sorted under the control of the external control processing device; The high-frequency electromagnetic valve is located at the gas channel and is electrically connected to the external control processing device, so as to switch the opening and closing state of the gas channel under the control of the external control processing device.

2. The grain airflow sorting mechanism according to claim 1, characterized in that: The grain airflow sorting mechanism also includes an air pipe joint; the air pipe joint is connected to the gas channel and is used for connecting the grain airflow sorting mechanism with ventilation equipment.

3. The grain airflow sorting mechanism according to claim 1, characterized in that: The feeding part, the detection part and the sorting part are integrally connected; the feeding part and the detection part are rectangular parallelepiped, and the length of the detection part is smaller than the length of the feeding part, and the height of the detection part is greater than the height of the feeding part; the cross-section of the sorting part is polygonal.

4. The grain airflow sorting mechanism according to claim 1, characterized in that: A connection hole is reserved on the top surface of the feeding part, and the connection hole is arranged around the feeding hole.

5. The grain airflow sorting mechanism according to claim 1, characterized in that: A pair of first infrared sensor mounting grooves and a pair of second infrared sensor mounting grooves are reserved on the outer wall of the detection part; the first infrared sensor mounting groove and the second infrared sensor mounting groove are arranged at intervals, and the vertical distance between the first infrared sensor mounting groove and the feeding part is smaller than the vertical distance between the second infrared sensor mounting groove and the feeding part.

6. The grain airflow sorting mechanism according to claim 1, characterized in that: The sorting part has two layers of gas channels and sorting holes, and the gas channels of each layer are adjacent to each other.

7. The grain airflow sorting mechanism according to claim 6, characterized in that: The number of the gas channels and sorting holes in each layer is 3 pairs.

8. The grain airflow sorting mechanism according to claim 1, characterized in that: The number of the infrared sensors is specifically two pairs.

9. The grain airflow sorting mechanism according to claim 1, characterized in that: The body is made of plastic or metal.

10. A grain sorting device, characterized in that: The grain sorting equipment comprises the grain airflow sorting mechanism described in any one of claims 1-9.

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