In the production line of the dispensing machine industry, in order to ensure product quality and consistency. Sensors are needed here to accurately detect whether the product has a rubber sleeve. When no rubber sleeve is detected, the sensor sends a signal to drive the equipment to remove the material without a rubber sleeve.

Selection analysis

1. The plastic sleeve is placed on a metal rod, and the adjustment of the detection distance needs to be very precise to avoid mistakenly measuring the metal rod

2. The plastic cover is small and semi transparent

3. There is gripper movement on the assembly line, so it is not suitable to install proximity sensors

solution

1. Select laser sensor ELE-B35N, principle of diffuse reflection detection

2. The sensor emits a laser beam towards the metal rod. If there is a rubber sleeve outside the metal rod, the laser beam will be reflected back to the sensor by the rubber sleeve; If the rubber sleeve is missing, the laser beam will be directly irradiated onto the metal rod. Due to the metal's absorption and scattering characteristics of light, the sensor will receive weak or no reflection signal

3. Small spot size, minimum detectionφ 0.5mm， Can easily detect small materials

4. It has background suppression function and 6-turn potentiometer sensitivity adjustment, which is convenient and accurate. By simply adjusting the material and size of the rubber sleeve, the sensor can accurately detect the presence or absence of the rubber sleeve without being affected by the metal and surrounding mold environment

5. Response time of 1.2ms, compatible with high-speed operating assembly lines