Picking device

A picking device, suitable for absorbing at least one material, comprising:

• a vacuum source configured to pump air to provide negative pressure;
• and
• a picking mechanism connected with the vacuum source, wherein the picking mechanism comprises a main body, and a plurality of picking assemblies which are movably arranged on the main body, the main body being provided with a plurality of air channels for connecting the vacuum source and the picking assemblies respectively, each picking assembly comprising a picking piece, a moving piece and a blocking piece, the picking pieces and the moving pieces penetrating through the main body at intervals and passing through the corresponding air channels, the blocking pieces being connected with first ends of the picking pieces and the moving pieces respectively, second ends of the picking pieces being provided with chucks which are connected with the corresponding air channels, and the moving pieces being provided with air vents which move alongside the blocking pieces to communicate with the air channels,
• when the picking pieces press the materials to push the blocking pieces and drive the moving pieces to move, and the air vents of the moving pieces communicate with the corresponding air channels, the vacuum source generates negative pressure through the air channels, enabling the chucks of the picking pieces to absorb the materials.