Datum plane positioning mechanism and length and circumference detection device

Abstract

The invention discloses datum plane positioning mechanism comprises a rotating shaft, datum planes and a detection channel. The rotating shaft is vertically arranged, the multiple datum planes are horizontally fixed to the rotating shaft, and the datum planes are distributed around the rotating shaft in a circumferential direction and are arranged in a high-low staggered mode and in a circumferential staggered mode; the fixed detection channel is parallel to the rotating shaft, and when a sample is detected, the sample is vertically placed on the datum plane and is positioned in the detectionchannel. Besides, a length and circumference detection device comprises a datum plane positioning mechanism and a laser detector, the laser detector is installed on the upper portion of the detectionchannel, and the laser surface of the laser detector passes through a sample located in the detection channel. The datum plane positioning mechanism provides a plurality of datum planes with differentheights for length and circumference measurement at the same time, and the datum planes are driven by the rotating shaft to rotate, so that switching of the datum planes with different heights in thedetection channel is achieved; and the height of each datum plane is fixed, the height error of the datum planes can be eliminated, so that detection data of cigarettes and filter sticks are correct.

Description

technical field [0001] The invention relates to the technical field of cigarette detection, in particular to a reference plane positioning mechanism and a length and circumference detection device including the reference plane positioning mechanism. Background technique [0002] In the tobacco industry, the length and circumference of cigarettes and filter rods have always been important indicators required to be inspected in the physical properties of cigarettes and filter rods involved in national standards, and are an important technical system for standardizing cigarette production. Therefore, the inspection of the length and circumference of cigarettes and filter rods during the production process is very important. [0003] Existing cigarettes and filter rods have a variety of specifications. If you want to uniformly measure the length and circumference of cigarettes and filter rods of different specifications, you need to provide different heights for different specif...

AI Technical Summary

Problems solved by technology

[0003] Existing cigarettes and filter rods have a variety of specifications. If you want to uniformly measure the length and circumference of cigarettes and filter rods of different specifications, you need to provide different heights for different specifications of cigarettes and filter rods. High-precision positioning of the datum level. At present, the height adjustment of the datum level is carried out back and forth by power, resulting in a large error in the height of the datum plane, which leads to errors in the detection data of cigarettes and filter rods, which is not conducive to the improvement of the physical properties of cigarettes and filter rods. control

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