US 12,419,229 B2
Array cutting knife-type cotton topping machine and control method thereof
Qing Xie, Jiangsu (CN); Teng Wu, Jiangsu (CN); Fanting Kong, Jiangsu (CN); Bin Zhang, Jiangsu (CN); Yongfei Sun, Jiangsu (CN); and Changlin Chen, Jiangsu (CN)
Assigned to Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing (CN)
Filed by Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Jiangsu (CN)
Filed on Apr. 3, 2024, as Appl. No. 18/626,073.
Application 18/626,073 is a continuation of application No. PCT/CN2024/070447, filed on Jan. 3, 2024.
Claims priority of application No. 202311322751.0 (CN), filed on Oct. 12, 2023.
Prior Publication US 2025/0120350 A1, Apr. 17, 2025
Int. Cl. A01D 23/02 (2006.01); A01D 46/08 (2006.01); A01G 22/50 (2018.01)
CPC A01G 22/50 (2018.02) [A01D 2023/026 (2013.01); A01D 46/08 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An array cutting knife-type cotton topping machine, comprising cameras (4), controllers (5), a tacho-generator (6) and a plurality of groups of topping assemblies (A) arranged in a left-right direction, the cameras (4) and the tacho-generator (6) being connected to the controllers (5), and each group of the topping assemblies (A) comprising a lifting mechanism (1) and a lifting seat (2), a plurality of topping devices (3) being mounted on the lifting seat (2), and each of the topping devices (3) having a topping execution mechanism (31), wherein:
the plurality of topping devices (3) staggered left and right are arranged for each planting row; and each of the topping devices (3) is independently switchable between an operating state and a non-operating state, and the switching of states is controlled by the controller (5), the controller (5) being capable of identifying top positions of plants to be topped in each planting row based on an image collected by the camera (4) during operation and controlling a corresponding topping device (3) to switch to an operating state, and a position of the topping execution mechanism (31) of the topping device (3) in the operating state being lower than that of the topping execution mechanisms (31) of other topping devices (3);
the topping device (3) comprises a fixing seat (32) fixed relative to the lifting seat (2), and further comprises a swing rod (33) rotatably mounted relative to the fixing seat (32) and a driving mechanism (34) for driving the swing rod (33) to swing in a reciprocating pattern; and the topping execution mechanism (31) is fixed to an end portion of the swing rod (33); and
the topping execution mechanism (31) comprises a cutting knife (3a), a driving motor (3b) and a protective cover (3c); and the protective cover (3c) has a conical shape and covers an outer side of the cutting knife (3a), and the protective cover (3c) has notch parts on left and right sides.