Abstract: The present disclosure generally relates to pick and place robotic systems. An exemplary system for orienting an object comprises: a scanner configured to detect a label on the object; an upper conveyor belt; a flipping conveyor belt located at an end of the upper conveyor belt, wherein the upper conveyor belt is configured to transport the object toward the flipping conveyor belt, wherein the flipping conveyor belt is configured to, in a first orientation or position, rotate and exert a frictional force on the object to reorient the object while the object is in contact with the upper conveyor belt, wherein the flipping conveyor belt is configured to, in a second orientation or position, allow the object to drop off the end of the upper conveyor belt.

Abstract: The present disclosure generally relates to pick and place robotic systems. An exemplary system for orienting an object comprises: a scanner configured to detect a label on the object; an upper conveyor belt; a flipping conveyor belt located at an end of the upper conveyor belt, wherein the upper conveyor belt is configured to transport the object toward the flipping conveyor belt, wherein the flipping conveyor belt is configured to, in a first orientation or position, rotate and exert a frictional force on the object to reorient the object while the object is in contact with the upper conveyor belt, wherein the flipping conveyor belt is configured to, in a second orientation or position, allow the object to drop off the end of the upper conveyor belt.

Abstract: The present invention discloses an impeller for a fan, which comprises a plurality of blades (2) and a rear wheel disc (1); the plurality of blades (2) are arranged one by one successively along a circumferential direction of the rear wheel disc (1); an angle ? is defined between the first projection line (21a) of each outer edge (21) and a radial line of the rear wheel disc (1) and satisfies the following condition: ?60°???60°; an angle ? is defined between the second projection line (22a) of each inner edge (22) and the radial line of the rear wheel disc (1) and satisfies the following condition: 20°???70°; an angle ? is defined between a first connecting line (L1) and a second connecting line (L2) and satisfies the following condition: 10°???65°. The impeller for a fan is good in aerodynamic performance, high in both fan efficiency and air pressure, and large in gradient of the generated negative pressure.