Positioning equipment and bottle unscrambling device

The utility model provides a positioning device and a bottle arranging device. The positioning device comprises a bottom plate, a positioning wheel, a limiting bent rod, a first baffle, a second baffle and a third baffle. When the bottle openings of the plastic bottles face upwards and enter the positioning wheels in an upright mode, the positioning wheels drive the plastic bottles to rotate, and the third baffles limit the plastic bottles to enable the plastic bottles to leave the positioning wheels in an upright mode; when a bottle opening of a plastic bottle is inverted downwards and enters the positioning wheel, the positioning wheel drives the plastic bottle to rotate, and the second end of the limiting bent rod extrudes the bottom end of the plastic bottle towards the bottoms of the multiple gear teeth, so that the bottle opening of the plastic bottle is lifted to make contact with the contact end face of the first baffle; the bottle opening of the plastic bottle gradually rises along the contact end fa