Patent ID: 11969763
Assignee: LG CHEM, LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A system for automatically inspecting and sorting pellets, the system comprising:
a pellet supply part configured to supply a plurality of pellets;
a first pellet transfer part configured to transfer the plurality of pellets supplied from the pellet supply part along a conveyance path toward a pellet delivery part;
the pellet delivery part disposed after the first pellet transfer part along the conveyance path, the pellet delivery part being configured to transfer the plurality of pellets received from the first pellet transfer part downward;
a second pellet transfer part disposed below the first pellet transfer part, wherein the second pellet transfer part is configured to receive the plurality of pellets transferred downward through the pellet delivery part, wherein the second pellet transfer part is configured to invert the plurality of pellets by 180°, so as to transfer the plurality of pellets in a direction away from the pellet delivery part along the conveyance path;
a first vision inspection part disposed above the first pellet transfer part, the first vision inspection part being configured to photograph a first surface of each of the plurality of pellets, so as to inspect whether the first surface of each of the plurality of pellets is defective;
a first dispensing part disposed between the first vision inspection part and the pellet delivery part, wherein the first dispensing part is configured to suction defective ones of the plurality of pellets, wherein the first vision inspection part is configured to determine a defect of each of the plurality of pellets, so as to separate the defective pellets from the first pellet transfer part;
a second vision inspection part disposed above the second pellet transfer part, the second vision inspection part being configured to photograph a second surface of each of the plurality of pellets so as to inspect whether the second surface of each of the plurality of pellets is defective;
a second dispensing part disposed after the second vision inspection part along the conveyance path, wherein the second dispensing part is configured to suction the plurality of defective pellets, wherein the second vision inspection part is configured to determine a defect of the second surface of each of the plurality of pellets, so as to separate the defective pellets from the second pellet transfer part; and
an unloading part disposed after the second pellet transfer part along the conveyance path, wherein the unloading part is configured to receive the plurality of pellets from the second pellet transfer part, so as to transfer the plurality of pellets to a designated unloading position,
wherein the pellet delivery part comprises:
a first guide plate extending downward from a front end of a first pellet transfer part;
a second guide plate installed to be spaced apart in a horizontal dimension from the first guide plate by a certain amount, the certain amount being greater than a thickness of each of the plurality of pellets; and
a plurality of guide lanes disposed to extend vertically between the first guide plate and the second guide plate, so as to guide the plurality of pellets downward.