Online detection and control method and device of periphery of filtering rod

Abstract

The invention relates to an online detection and control method of the periphery of a filtering rod and a device. The device is characterized by mainly comprising a parallel light source (1), a linear array CCD (Charge Coupled Device) detector (2), a scanning motor (3), a signal processing module (4) and an executing mechanism (6), wherein the parallel light source (1) and the linear array CCD detector (2) are respectively positioned at the two opposite sides of the filtering rod; the scanning motor (3) drives the parallel light sources (1) and the linear array CCD detector (2) to rotate around the filtering rod; the signal input end of the signal processing module (4) is connected with the signal output end of the linear array CCD detector (2); and the signal output end of the signal processing module (4) is connected with the control end of the parallel light source (1), the control signal input end of a motor driver of the scanning motor and the signal input end of the executing mechanism (6) simultaneously. The invention has the advantages that the accuracy is high (the size of the received image element is 10mum), no influence is caused by various interference factors such asvibration, noise, temperature, dust and barometric fluctuation and the like on a site, and the detection result is accurate, stable and reliable.

Description

technical field [0001] The present invention relates to a tobacco machine, in particular to a method and device capable of detecting the diameter and roundness of a filter rod, one of cigarette auxiliary materials, specifically an online automatic detection and control method for the circumference of a filter rod and device. Background technique [0002] As we all know, the circumference and roundness of cigarettes and filter rods are one of the most important indicators of product quality in cigarette factories. The cigarette process specification requires that the product circumference index and tolerance be ±0.20mm from the design value, and the roundness index and tolerance be ≤0.35mm. At present, cigarette factories mainly use two methods to test the circumference and roundness of products: (1) Off-line testing in the laboratory. The testing personnel take samples from the machine and send them to the laboratory for testing with testing instruments. The problem is tha...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the current off-line detection in the roundness and diameter detection of filter rods has a long cycle, the real-time shaping of the filter rods cannot be realized, and the existing air pressure online detection method has low precision and poor stability. A method that can automatically detect the diameter and roundness of filter rods on-line and in real time, and provide a set of devices for realizing the method at the same time

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