Bamboo stick straightness automatic detection machine

The invention relates to the technical field of bamboo stick detection, and discloses a bamboo stick straightness automatic detection machine which comprises a bamboo stick positioning mechanism and a bamboo stick straightness detection mechanism, the bamboo stick straightness detection mechanism comprises a detection head, and the bottom end of the detection head is made of a flexible material; the connecting plate is connected above the detection head; the buffer spring is connected to the upper part of the connecting plate; and scales are arranged on the surface of the detection ruler. The detection head transversely moves on the bamboo stick body, when the detection head encounters the bent position of the bamboo stick body, the detection head moves upwards, the detection head pushes the connecting plate upwards, the connecting plate compresses the buffer spring and the connecting plate inwards so as to move on the detection ruler, and by observing the scale displacement on the detection ruler, the detect