This invention discloses a linearized thickness detection device and method for automotive sound-absorbing cotton, relating to the field of sound-absorbing cotton
processing quality inspection technology. The invention includes a transmission component, a displacement guide, a
lateral movement mechanism, a micro
servo motor, a rotating probe, an auxiliary drive roller, and a driven roller. Through the
coordinated movement of the
lateral movement mechanism and the rotating probe, the auxiliary drive roller and the driven roller straighten the sound-absorbing cotton. The detection module continuously collects thickness data, which is processed by the PCB
motherboard and transmitted to an external terminal. This invention achieves full-range lateral coverage detection of automotive sound-absorbing cotton, reducing missed detections, avoiding detection errors caused by wrinkles or excessive stretching of the sound-absorbing cotton, preventing interference from sound-absorbing cotton lint to the detection module, and improving detection accuracy and efficiency. It is suitable for thickness
quality control in the production process of automotive sound-absorbing cotton.