Thin film conveying deviation correction structure and control method

Abstract

The invention discloses a thin film conveying deviation correction structure and control method, and particularly relates to a thin film conveying deviation correction mechanism arranged on a filter rod forming machine and a corresponding deviation correction control method. The deviation correction mechanism is mainly composed of a detector, deviation correction rollers, deviation correction roller mounting seats and a telescopic rod. When the deviation correction roller mounting seats rotate clockwise or anticlockwise under the stretching or retracting acting force of the telescopic rod, thedeviation correction rollers rotate therewith; and in the rotating process of the deviation correction rollers, a thin film wound around the deviation correction rollers can generate leftward or rightward displacement (anticlockwise or clockwise angular displacement), and therefore leftward or rightward friction force (anticlockwise or clockwise friction moment) is generated to the thin film, thethin film is driven to move leftwards or rightwards (rotate anticlockwise or clockwise), and the function of deviation correction is achieved. The deviation correction structure is compact, manufacturing and mounting are easy, the control method is simple, the thin film can be stably and precisely conveyed at the conveying roller given position in the conveying process, and the best conveying effect is obtained.

Description

technical field [0001] The invention belongs to the technical field of rod forming in the tobacco industry, in particular to a film transmission deviation correction structure and a control method thereof, which are used for adjusting and controlling the position of the film on the transmission roller. Background technique [0002] With the improvement of living standards, reducing the harmfulness of cigarettes has become the core task of the sustainable development of the tobacco industry. New heat-not-burn tobacco products are closer to traditional cigarettes in terms of physiological feelings, psychological perception, and smoking methods, and have obvious harm reduction characteristics. getting more popular. [0003] When making heat-not-burn tobacco products, it is necessary to use polylactic acid film material (PLA) to make filter rods to reduce the temperature of the inhaled airflow. However, there is no polylactic acid film material (PLA) filter rod forming technolo...

AI Technical Summary

Problems solved by technology

[0004] Other equipment, such as cigarette product packaging machines, have film conveying mechanisms, but these mechanisms have the following three common defects: 1) It is impossible to adjust and control the position of the film on the conveying roller, and the film will appear on the conveying roller during the film conveying process. Position deviation, because there is no deviation correction function, the position deviation of the film will become larger and larger, which will eventually cause the equipment to stop. 3) The detector is configured to detect the position of the film on the conveying roller in real time and has a deviation correction function, but the deviation correction process is complicated and requires a set of linkage of multiple transmission rollers to achieve correction

[0005] Therefore, the film transmission mechanism in the above existing equipment cannot satisfy the stable and accurate transmission of the polylactic acid film on the forming machine, and cannot guarantee the batch production of filter rods for heat-not-burn tobacco products

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