Seeding nozzle with self-cleaning and anti-blocking functions and seeding device with nozzle
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A self-clearing and anti-blocking technology, which is applied in the field of seeding equipment and seeding nozzles, to achieve the effects of reducing energy use, low cost, and simple structure
Active Publication Date: 2012-09-05
BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI
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Problems solved by technology
[0007] The technical problem to be solved by the present invention is how to ensure effective self-cleaning and anti-blocking treatment when the suction nozzle of the sowing device is blocked
Method used
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Embodiment 1
[0046] First, a sowing nozzle with self-clearing and anti-clogging functions based on the technical solution of the present invention will be described.
[0047] Such as figure 1 As shown, the sowing nozzle with self-clearing and anti-blocking function includes:
[0048] The nozzle head 5 has a circular hollow structure inside, one end is provided with an external thread, and the other end is provided with an adsorption hole 7, and the aperture of the adsorption hole 7 is set according to the size of the seeds to be sown;
[0049] Connecting block 1, the inside of which is set as a circular hollow structure, one end is provided with an internal thread to be threadedly connected with the nozzle head 5, and the outer surface of the other end is provided with an external thread for connecting an external support component for suction. Overall fixation of the mouth;
[0050] Return spring 9, which is a compression spring, is fixedly arranged on the inner surface of the inner cav...
Embodiment 2
[0060] Next, the sowing equipment including the sowing suction nozzle described in the above-mentioned embodiment 1 based on the technical solution of the present invention will be described.
[0061] Such as figure 2 As shown, the sowing equipment includes: the aforementioned sowing suction nozzle with self-clearing and anti-blocking function, gas flow meter C, electromagnetic reversing valves A and B, and a controller.
[0062] Wherein, the structure of the sowing nozzle is the same as that provided in Example 1, and will not be repeated here;
[0063] Wherein, the second air inlet 10 of the nozzle head 5 communicates with the electromagnetic reversing valve B through the gas flowmeter C, and the electromagnetic reversing valve B is respectively connected with the positive pressure air source and the negative pressure air source; The reversing valve B is connected to and controlled by the controller, so that the second air inlet 10 is alternately connected to the negative ...
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Abstract
The invention relates to a seeding nozzle with self-cleaning and anti-blocking functions and a seeding device with the nozzle, and belongs to the technical field of plug tray seeding. In order to efficiently carry out self-cleaning and anti-blocking treatment when the nozzle is blocked, the seeding nozzle comprises a nozzle head, a connecting block, an offsetting spring, and an anti-blocking piston, wherein the nozzle head is in a circular hollow structure, and one end of the nozzle is provided with a suction hole; the connecting block is in a circular hollow structure, one end of the connecting block is connected with the nozzle head, and the other end of the connecting block is connected with an external support part; the offsetting spring is fixed in an internal chamber of the nozzle head; the anti-blocking piston is embedded in the inner chamber of the nozzle head, and is connected with the inner chamber of the nozzle head by the offsetting spring; and the anti-blocking piston is provided with an anti-blocking needle used for coming in and out of the suction hole in the process of sliding the anti-blocking piston. The nozzle adopts the anti-blocking needle to enter the suction hole under the function of positive air pressure, and adopts a mechanical structure to accomplish the self-cleaning and anti-blocking operation of the suction hole during the seeding, so that the seeding nozzle can efficiently avoid the problems that the seeding efficiency is seriously affected by complicated operation steps and the overlow locking cleaning effect of the suction nozzle when the nozzle of the existing seeding machine is blocked.
Description
technical field [0001] The invention relates to the field of plug sowing technology, in particular to a sowing suction nozzle with self-clearing and anti-blocking functions and sowing equipment including the suction nozzle. Background technique [0002] The existing air-suction tray sowing equipment has been widely used in the actual production of seedling sowing. In the automatic sowing process, the problem of needle channel blockage often occurs, and it is necessary to manually unclog the seed suction needle. This process is currently specific. Rely on the following process: first use negative pressure to suck seeds (such as vacuum adsorption), and then use positive pressure blowing to discharge seeds. If there is a problem of nozzle blockage, it is necessary to remove the suction nozzle after stopping the machine and clear the suction through positive pressure blowing. The channel where the mouth is blocked, and at the same time, artificially reseed the holes that have mi...
Claims
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Application Information
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Patent Type & Authority Applications(China)
IPC IPC(8): A01C7/04A01C7/20
Inventor 姜凯郑文刚张骞乔晓军郭文忠田宏武邱权冯青春郭瑞
Owner BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI
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