Sucking device, feeding detection device and sorting equipment

Abstract

The embodiment of the utility model provides a suction device, a feeding detection device and sorting equipment, and relates to the technical field of sorting. The suction device comprises a suction cup, a vacuumizing device, a control valve and a non-contact sensor, the suction cup is used for sucking an object to be sucked, the vacuumizing device is connected with the suction cup, the control valve is connected with the suction cup and the vacuumizing device at the same time, and the non-contact sensor is connected with the control valve. Due to the fact that the non-contact sensor is adopted to enable the control valve to work and enable the suction cup to be communicated with the vacuumizing device, partial structures of the suction device and the feeding detection device are not prone to being abraded, the service life is prevented from being affected, the use cost is reduced, meanwhile, the maintenance cost of the feeding detection device is reduced, and the production efficiency is improved. And meanwhile, the energy consumption of the feeding detection device is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sorting, and in particular to a suction device, a feeding detection device and sorting equipment. Background Art

[0002] The feeding detection device of the sorting equipment can detect the size, color, softness or hardness of fruits and vegetables when sorting fruits and vegetables, and then sort the fruits and vegetables according to the above information.

[0003] In the prior art, during the process of sucking fruits and vegetables, the suction device of the feed detection device needs to use the abutment block on the feed detection device to abut the pressure rod type mechanical valve to achieve the connection between the vacuum pump and the suction cup, thereby realizing the process of sucking fruits and vegetables. However, this will cause wear on both the abutment block and the pressure rod type mechanical valve, which not only affects the service life of the pressure rod type mechanical valve and increases the cost of use, but also increases the maintenance cost of the feed detection device, and also increases the load on the turntable motor used to drive the pressure rod type mechanical valve to rotate, thereby increasing energy consumption. Utility Model Content

[0004] The utility model provides a suction device, a material feeding detection device and a sorting device, which can save use costs and reduce energy consumption.

[0005] The embodiment of the present utility model can be implemented as follows:

[0006] In a first aspect, the present invention provides a suction device, comprising:

[0007] A suction cup, used for sucking an object to be sucked;

[0008] A vacuum pumping device connected to the suction cup;

[0009] a control valve, the control valve simultaneously connecting the suction cup and the vacuum pump; and

[0010] a non-contact sensor connected to the control valve, wherein the non-contact sensor is configured to activate the control valve when triggered, so as to connect the suction cup to the vacuum device;

[0011] The suction device can be applied to the feeding detection device of the sorting equipment. Since a non-contact sensor is used to operate the control valve and connect the suction cup and the vacuum device, and the vacuum device drives the suction cup to complete the process of sucking the object to be sucked (such as fruits and vegetables), it replaces the existing method of realizing the suction process by contact between the abutment block and the pressure rod type mechanical valve. Partial structures of the suction device and the feeding detection device are not easily worn, which avoids affecting the service life, thereby reducing the use cost. At the same time, the maintenance cost of the feeding detection device is reduced, and the energy consumption of the feeding detection device is also reduced.

[0012] In an optional embodiment, the suction device also includes an intermediate relay, which is simultaneously connected to the control valve and the non-contact sensor. The intermediate relay is used to receive the non-contact sensor signal and enable the control valve to operate. The intermediate relay can conveniently close the normally open contacts of the intermediate relay after receiving the signal feedback from the non-contact sensor, so that the control valve operates to connect the suction cup and the vacuum device.

[0013] In an optional embodiment, the suction device further includes a mounting bracket, and the control valve and the non-contact sensor are both mounted on the mounting bracket. The mounting bracket can facilitate the arrangement of the control valve and the non-contact sensor on the rotating mechanism of the feed detection device.

[0014] In an optional embodiment, the mounting bracket includes a first plate, a second plate and a third plate connected in sequence, the first plate and the second plate are distributed at an angle, the second plate and the third plate are distributed at an angle, the non-contact sensor is installed on the mounting bracket, the control valve is installed on the third plate, and the first plate and the third plate are respectively located on opposite sides of the second plate, so that there is installation space for the non-contact sensor and the control valve, which is beneficial for the non-contact sensor to adjust the installation position so as to meet the installation requirements of the non-contact sensor and the control valve at the same time.

[0015] In an optional embodiment, the non-contact sensor is movably mounted on the first plate. Since the non-contact sensor is movably mounted on the first plate, it is convenient to adjust the position of the non-contact sensor.

[0016] In an optional embodiment, the suction device further includes a first air circuit interface and a second air circuit interface, wherein the first air circuit interface and the second air circuit interface are both connected to the control valve, the first air circuit interface is in communication with the vacuum pump, and the second air circuit interface is in communication with the suction cup;

[0017] The non-contact sensor is used to operate the control valve when triggered to connect the first air path interface and the second air path interface. The first air path interface and the second air path interface can facilitate the control valve to connect to the vacuum device and the suction cup respectively.

[0018] In an optional embodiment, the non-contact sensor is a proximity switch; and / or the control valve is a solenoid valve; and / or the vacuum device is a vacuum pump. The non-contact sensor uses a proximity switch to facilitate being triggered by the suction area trigger of the feeding detection device, and the control valve uses a solenoid valve to facilitate controlling the connection between the suction cup and the vacuum device. The vacuum device uses a vacuum pump to facilitate the suction cup to absorb the object to be absorbed.

[0019] In a second aspect, the utility model provides a material feeding detection device, comprising a detection device body and a suction device as described in any one of the aforementioned embodiments, wherein the suction device is installed on the detection device body. The material feeding detection device can save usage costs and reduce energy consumption.

[0020] In an optional embodiment, the detection device body includes a frame, a rotating mechanism, a detection element and a suction area trigger, the detection element and the suction area trigger are both installed on the frame, the suction cup of the suction device and the non-contact sensor are arranged on the rotating mechanism, the rotating mechanism is rotatably installed on the frame, the suction area trigger is used to trigger the non-contact sensor, so that the control valve works to connect the suction cup and the vacuum device, and the non-contact sensor can be brought close to the suction area trigger by rotating the rotating mechanism, so that the suction area trigger installed on the frame can easily trigger the non-contact sensor, so that the control valve can achieve communication between the vacuum device and the suction cup.

[0021] On the third aspect, the utility model provides a sorting device, including the feed detection device described in the aforementioned embodiment, which can save the use cost of the sorting device and reduce the energy consumption of the sorting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of a feed detection device provided in an embodiment of the present utility model;

[0024] Figure 2A schematic diagram of the principle of the suction device provided in an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of a control valve and a non-contact sensor provided in an embodiment of the present invention installed on a mounting bracket from a first perspective;

[0026] Figure 4 A schematic diagram showing a control valve and a non-contact sensor provided in an embodiment of the present invention mounted on a mounting bracket from a second perspective;

[0027] Figure 5 A schematic circuit diagram of an intermediate relay connected to a non-contact sensor and a control valve provided in an embodiment of the present utility model;

[0028] Figure 6 This is a brief schematic diagram of the non-contact sensor being triggered by the suction area trigger during the operation of the feed detection device provided in an embodiment of the present utility model.

[0029] Icons: 1000- suction device; 100- suction cup; 200- vacuum device; 300- control valve; 400- non-contact sensor; 500- intermediate relay; 510- coil; 520- normally open contact; 600- mounting bracket; 610- first plate; 620- second plate; 630- third plate; 710- first air path interface; 720- second air path interface; 10- object to be sucked; 2100- frame; 2200- rotating mechanism; 2201- mounting plane; 2300- suction area trigger. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0033] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0035] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0036] As mentioned in the background technology, the feed detection device of the sorting equipment can detect information such as the size, color, or softness and hardness of fruits and vegetables when sorting fruits and vegetables, and then sort the fruits and vegetables based on the above information.

[0037] In the prior art, during the process of sucking fruits and vegetables, the suction device of the feeding detection device needs to use the abutment block on the feeding detection device to abut against the pressure rod type mechanical valve (the pressure rod type mechanical valve here can be understood as a lever type roller mechanical valve) to achieve the connection between the vacuum pump and the suction cup, thereby realizing the process of sucking fruits and vegetables.

[0038] However, this will cause wear on both the abutment block and the pressure rod type mechanical valve, affecting the service life of the pressure rod type mechanical valve and increasing the cost of use (it can be understood that the worn pressure rod type mechanical valve needs to be replaced with a new one). At the same time, it increases the maintenance cost of the feed detection device (it can be understood that it is necessary to regularly apply lubricating butter to the contact surface of the roller and the abutment block of the pressure rod type mechanical valve), and also increases the load on the turntable motor used to drive the pressure rod type mechanical valve to rotate, thereby increasing energy consumption.

[0039] In view of this, please refer to Figures 1-6 The suction device 1000, the feeding detection device and the sorting equipment provided in the embodiment of the present invention can solve this problem, which will be described in detail below.

[0040] Please refer to Figure 1 In an embodiment of the utility model, a sorting device is provided, which includes a feed detection device, which is used to convey materials and can collect image information during the conveying process of materials (such as fruits and vegetables). Compared with existing sorting equipment, this sorting device can save usage costs and reduce energy consumption.

[0041] Specifically, the feed detection device includes a detection device body and a suction device 1000. The suction device 1000 is installed on the detection device body. The feed detection device can save usage costs and reduce energy consumption.

[0042] The suction device 1000 includes a suction cup 100, a vacuum device 200, a control valve 300 and a non-contact sensor 400. The suction cup 100 is used to suck the object 10 to be sucked, the vacuum device 200 is connected to the suction cup 100, the control valve 300 is connected to the suction cup 100 and the vacuum device 200 at the same time, the non-contact sensor 400 is connected to the control valve 300, and the non-contact sensor 400 is used to activate the control valve 300 when triggered to connect the suction cup 100 and the vacuum device 200.

[0043] In this embodiment, the control valve 300 can be a solenoid valve, and the vacuum device 200 can be a vacuum pump. The control valve 300 uses a solenoid valve to facilitate the control of the connection between the suction cup 100 and the vacuum device 200, and the vacuum device 200 uses a vacuum pump to facilitate the suction cup 100 to absorb the object 10 to be absorbed.

[0044] The suction device 1000 can be applied to the feeding detection device of the sorting equipment. Since the non-contact sensor 400 is used to operate the control valve 300 and connect the suction cup 100 and the vacuum device 200, and at the same time the vacuum device 200 drives the suction cup 100 to complete the process of sucking the object to be sucked 10 (such as fruits and vegetables), it replaces the existing method of realizing the suction process through contact between the abutment block and the pressure rod type mechanical valve, thereby avoiding the problems brought by the existing method.

[0045] Specifically, the suction device 1000 and part of the structure of the feed detection device (which can be understood as the suction area trigger 2300 mentioned later) are not easily worn, which avoids affecting the service life, thereby reducing the cost of use. At the same time, the process of applying lubricating butter in the existing method is no longer required, thereby reducing the maintenance cost of the feed detection device.

[0046] It should be noted that the detection device body includes a frame 2100, a rotating mechanism 2200, a detection element and a suction area trigger 2300. The detection element and the suction area trigger 2300 are both installed on the frame 2100. The suction cup 100 of the suction device 1000 and the non-contact sensor 400 are arranged on the rotating mechanism 2200, and the rotating mechanism 2200 is rotatably installed on the frame 2100.

[0047] The detection element can be understood as an existing visual detection device, which is used to obtain image information of the object 10 to be sucked (such as fruits and vegetables) sucked by the suction cup 100. The detection device body also includes a motor, which is connected to the rotating mechanism 2200, and the motor is used to drive the rotating mechanism 2200 to rotate.

[0048] There can be multiple suction devices 1000. Through the rotation of the rotating mechanism 2200, the non-contact sensors 400 of multiple suction devices 1000 can approach the suction area trigger 2300 in turn and be located below the suction area trigger 2300, but will not come into contact with the suction area trigger 2300.

[0049] Of course, in some embodiments, the number of suction cups 100 of the suction device 1000, the number of control valves 300, and the number of non-contact sensors 400 are all multiple, and the number of suction cups 100, the number of control valves 300, and the number of non-contact sensors 400 of the suction device 1000 are the same, and the multiple suction cups 100 and the multiple control valves 300 correspond one-to-one. At the same time, the multiple control valves 300 and the multiple non-contact sensors 400 correspond one-to-one, and the number of vacuum pumping devices 200 of the suction device 1000 is one, and the multiple control valves 300 are all connected to this one vacuum pumping device 200.

[0050] In this embodiment, the suction area triggering member 2300 is an arc-shaped plate structure.

[0051] The suction area trigger 2300 is used to trigger the non-contact sensor 400, so that the control valve 300 works to connect the suction cup 100 and the vacuum device 200. By rotating the rotating mechanism 2200, the non-contact sensor 400 can be close to the suction area trigger 2300, so that the suction area trigger 2300 installed on the frame 2100 can easily trigger the non-contact sensor 400, so that the control valve 300 can achieve communication between the vacuum device 200 and the suction cup 100.

[0052] Since the non-contact sensor 400 is located below the suction area trigger 2300 and does not come into contact with the suction area trigger 2300, the motor that drives the rotating mechanism 2200 to rotate has a smaller motor load than the prior art method of using an abutment block to abut a pressure rod type mechanical valve, thereby reducing the energy consumption of the feed detection device.

[0053] In addition, please refer to Figure 2 and Figure 5The suction device 1000 also includes an intermediate relay 500, which is connected to the control valve 300 and the non-contact sensor 400 at the same time. The intermediate relay 500 is used to receive the signal of the non-contact sensor 400 and make the control valve 300 work. The intermediate relay 500 can conveniently close the normally open contact 520 of the intermediate relay 500 after receiving the signal feedback from the non-contact sensor 400, so that the control valve 300 works, so that the suction cup 100 and the vacuum device 200 are connected.

[0054] Specifically, after the intermediate relay 500 receives the signal feedback from the non-contact sensor 400, the coil 510 ( Figure 2 and Figure 5 A1 and A2 can be connected as the two ends of the coil 510) are energized, that is, the coil 510 is attracted, so that the normally open contact 520 of the intermediate relay 500 (the normally open contact 520 of the intermediate relay 500 is connected to the control valve 300) is closed, and then the solenoid valve is energized to connect the suction cup 100 and the vacuum device 200.

[0055] Specifically, when the non-contact sensor 400 of the suction device 1000 runs to the suction area trigger 2300, the non-contact sensor 400 is triggered, the coil 510 of the intermediate relay 500 is energized, the circuit of the intermediate relay 500 is conducted, the solenoid valve is energized, the suction cup 100 and the vacuum device 200 are connected, and the suction device 1000 can normally suck the fruits and vegetables on the conveyor line of the feeding detection device.

[0056] When the non-contact sensor 400 of the suction device 1000 does not run to the suction area trigger 2300, the non-contact sensor 400 will not be triggered, the coil 510 of the intermediate relay 500 will not be attracted, the circuit of the intermediate relay 500 will not be conductive, the solenoid valve will not be energized, the suction cup 100 and the vacuum device 200 will not be connected, and the suction device 1000 will not suck fruits and vegetables.

[0057] Please refer to Figure 6 The third plate 630 of the suction device 1000 is installed on the installation plane 2201 of the rotating mechanism 2200, the solenoid valve is installed on the third plate 630, and the non-contact sensor 400 is installed on the first plate 610, and the first plate 610 is parallel to the installation plane 2201.

[0058] During the operation of the feeding detection device, there is a distance S1 between the non-contact sensor 400, which is not in the suction area (which can be understood as the area where the suction area trigger member 2300 is located), and the frame 2100 of the feeding detection device. The non-contact sensor 400 does not trigger a signal, the solenoid valve is not energized, the suction cup 100 and the vacuum device 200 are not connected, and the suction device 1000 does not suck fruits and vegetables.

[0059] When the rotating mechanism 2200 continues to rotate, the non-contact sensor 400 enters the suction area. In the suction area, there is a distance S2 between the non-contact sensor 400 and the frame 2100 of the feeding detection device. The distance S1 is greater than the distance S2. The non-contact sensor 400 triggers a signal, the solenoid valve is energized, and the suction cup 100 is connected to the vacuum device 200, so that the suction device 1000 can suck fruits and vegetables.

[0060] Please refer to Figure 3 and Figure 4 The suction device 1000 also includes a mounting bracket 600, which can be installed on the rotating mechanism 2200. The control valve 300 and the non-contact sensor 400 are both installed on the mounting bracket 600. The mounting bracket 600 can facilitate the control valve 300 and the non-contact sensor 400 to be set on the rotating mechanism 2200 of the feed detection device.

[0061] The mounting bracket 600 includes a first plate 610 , a second plate 620 and a third plate 630 connected in sequence. The first plate 610 and the second plate 620 are distributed at an angle, and the second plate 620 and the third plate 630 are distributed at an angle.

[0062] Specifically, in this embodiment, the first plate 610 and the second plate 620 are distributed at right angles, the second plate 620 and the third plate 630 are distributed at right angles, the third plate 630 is installed on the installation plane 2201 of the rotating mechanism 2200, and the height of the first plate 610 is greater than that of the third plate 630.

[0063] The non-contact sensor 400 is installed on the mounting bracket 600, and the control valve 300 is installed on the third plate 630. The first plate 610 and the third plate 630 are respectively located on the opposite sides of the second plate 620, so that there is installation space for the non-contact sensor 400 and the control valve 300, which is beneficial for the non-contact sensor 400 to adjust the installation position so as to meet the installation requirements of the non-contact sensor 400 and the control valve 300 at the same time.

[0064] Specifically, the non-contact sensor 400 can be movably mounted on the first plate 610 to facilitate adjustment of the height of the non-contact sensor 400. In this embodiment, all the non-contact sensors 400 are installed at the same position on the mounting bracket. For example, all the non-contact sensors 400 are at the same height. When the non-contact sensor 400 is located on the lower side of the suction area trigger 2300, the distance between each non-contact sensor 400 and the suction area trigger 2300 is the same, so that each non-contact sensor 400 can be triggered normally.

[0065] It should be noted that the non-contact sensor 400 can use a proximity switch, the peripheral wall of the proximity switch has a thread and the outer wall of the proximity switch is threadedly connected to two limit nuts, the two limit threads can clamp or detach from the first plate body 610, and when the two limit threads clamp the first plate body 610, the position of the proximity switch is fixed, and the position of the two limit nuts on the peripheral wall of the proximity switch can be adjusted to achieve height adjustment of the proximity switch.

[0066] Since the non-contact sensor 400 is movably mounted on the first plate 610 , it is convenient to adjust the position of the non-contact sensor 400 . Of course, in other embodiments, the non-contact sensor 400 may also be replaced by an optical fiber amplifier, a photoelectric sensor, etc.

[0067] In addition, the suction device 1000 also includes a first air circuit interface 710 and a second air circuit interface 720. The first air circuit interface 710 and the second air circuit interface 720 are both connected to the control valve 300. The first air circuit interface 710 is connected to the vacuum device 200, and the second air circuit interface 720 is connected to the suction cup 100.

[0068] The non-contact sensor 400 is used to operate the control valve 300 when triggered to connect the first air circuit interface 710 and the second air circuit interface 720. The first air circuit interface 710 and the second air circuit interface 720 can facilitate the control valve 300 to connect to the vacuum device 200 and the suction cup 100 respectively.

[0069] In addition, it should be noted that the suction device 1000 is not limited to being used in the feed detection device of the sorting equipment for sucking fruits and vegetables, but can also be used for sucking block-shaped crafts or other items.

[0070] To sum up, the suction device 1000 includes a suction cup 100, a vacuum device 200, a control valve 300 and a non-contact sensor 400. The suction cup 100 is used to suck the object 10 to be sucked, the vacuum device 200 is connected to the suction cup 100, the control valve 300 is connected to the suction cup 100 and the vacuum device 200 at the same time, the non-contact sensor 400 is connected to the control valve 300, and the non-contact sensor 400 is used to make the control valve 300 work when triggered to connect the suction cup 100 and the vacuum device 200.

[0071] The suction device 1000 can be applied to the feeding detection device of the sorting equipment. Since the non-contact sensor 400 is used to make the control valve 300 work and connect the suction cup 100 and the vacuum device 200, and at the same time the vacuum device 200 drives the suction cup 100 to complete the process of sucking the object to be sucked 10, it replaces the existing method of realizing the suction process through contact between the abutment block and the pressure rod type mechanical valve, thereby avoiding the problems brought by the existing method.

[0072] The suction device 1000 provided in this embodiment can control the air path between the vacuum pump and the suction cup 100 only through a contactless sensor, an intermediate relay 500 and a solenoid valve, without adding other control systems.

[0073] The feeding detection device includes a detection device body and the above-mentioned suction device 1000. The suction device 1000 is installed on the detection device body. The feeding detection device can save usage costs and reduce energy consumption.

[0074] The sorting equipment includes the above-mentioned feeding detection device, which can save the use cost of the sorting equipment and reduce the energy consumption of the sorting equipment.

[0075] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A suction device, characterized in that: include: A suction cup (100), wherein the suction cup (100) is used to suck an object to be sucked (10); A vacuum pumping device (200), wherein the vacuum pumping device (200) is connected to the suction cup (100); a control valve (300), the control valve (300) being connected to the suction cup (100) and the vacuum pump (200); as well as A non-contact sensor (400) is connected to the control valve (300), and the non-contact sensor (400) is used to operate the control valve (300) when triggered, so as to connect the suction cup (100) and the vacuum device (200).

2. The suction device according to claim 1, characterized in that The suction device further comprises an intermediate relay (500), wherein the intermediate relay (500) is connected to the control valve (300) and the non-contact sensor (400) at the same time, and the intermediate relay (500) is used to receive a signal from the non-contact sensor (400) and enable the control valve (300) to operate.

3. The suction device according to claim 1, characterized in that The suction device further comprises a mounting bracket (600), and the control valve (300) and the non-contact sensor (400) are both mounted on the mounting bracket (600).

4. The suction device according to claim 3, characterized in that The mounting bracket (600) comprises a first plate (610), a second plate (620) and a third plate (630) connected in sequence, the first plate (610) and the second plate (620) are distributed at an angle, the second plate (620) and the third plate (630) are distributed at an angle, the first plate (610) and the third plate (630) are respectively located on opposite sides of the second plate (620), the non-contact sensor (400) is mounted on the mounting bracket (600), and the control valve (300) is mounted on the third plate (630).

5. The suction device according to claim 4, characterized in that The non-contact sensor (400) is movably mounted on the first plate (610).

6. The suction device according to claim 1, characterized in that The suction device further comprises a first air circuit interface (710) and a second air circuit interface (720), wherein the first air circuit interface (710) and the second air circuit interface (720) are both connected to the control valve (300), the first air circuit interface (710) is in communication with the vacuum pumping device (200), and the second air circuit interface (720) is in communication with the suction cup (100); The non-contact sensor (400) is used to operate the control valve (300) when triggered, so as to connect the first gas path interface (710) and the second gas path interface (720).

7. The suction device according to claim 1, characterized in that The non-contact sensor (400) is a proximity switch; and / or the control valve (300) is a solenoid valve; and / or the vacuum device (200) is a vacuum pump.

8. A feeding detection device, characterized in that: The device comprises a detection device body and the suction device according to any one of claims 1 to 7, wherein the suction device is installed on the detection device body.

9. The feeding detection device according to claim 8, characterized in that: The detection device body comprises a frame (2100), a rotating mechanism (2200), a detection element and a suction area trigger (2300), wherein the detection element and the suction area trigger (2300) are both mounted on the frame (2100), the suction cup (100) and the non-contact sensor (400) of the suction device are arranged on the rotating mechanism (2200), and the rotating mechanism (2200) is rotatably mounted on the frame (2100), and the suction area trigger (2300) is used to trigger the non-contact sensor (400) to operate the control valve (300) so as to connect the suction cup (100) and the vacuum device (200).

10. A sorting device, characterized in that: Including the feeding detection device according to claim 8 or claim 9.

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