Automatic separation control method for metal foreign objects in tobacco shreds

Abstract

The invention relates to an automatic separation control device for metal foreign objects in tobacco shreds. The automatic separation control device is characterized in that after a first metal detector detects that the metal objects are mixed in tobacco leaves, a first pneumatic door is controlled by a controller to be opened, so that the tobacco leaves mixed with the metal matters enter a discharging channel, and meanwhile, a blowing device is controlled to blow air upwards, so that the falling time difference of the tobacco leaves and the metal objects is caused, the metal objects are separated from the tobacco leaves and are adsorbed by a first magnet, the separation effect in the discharging channel is improved, the time difference of conduction of the first magnet and a second magnetis utilized, and the second magnet is used for carrying out secondary separation on the metal objects which are not completely separated in the tobacco leaves; the tobacco leaves entering an upper-layer material box are detected through a second metal detector, if the metal objects in the tobacco leaves are completely separated, a second pneumatic door is controlled to be opened to enable the tobacco leaves to fall into a lower-layer material box, and if it is detected that the tobacco leaves entering the upper-layer material box still contain the metal objects, the tobacco leaves are directly discharged from the upper-layer material box, and automatic separation of the tobacco leaves and the metal objects is achieved.

Description

Technical field [0001] The invention belongs to the technical field of tobacco production, and particularly refers to a method for automatically separating and controlling metal foreign bodies in shredded tobacco. Background technique [0002] At present, in the tobacco industry, in accordance with the requirements of the tobacco leaf shredding production process, the tobacco leaves in the shredder cannot be mixed with metal impurities. Before the tobacco leaves enter the cutting machine, they are detected by a metal detector. Once the tobacco leaves contain metal objects, the pneumatic door at the front will open so that the tobacco leaves containing metal objects will fall from the pneumatic door and fall into the previously placed tobacco leaves. In the material box. Then there is an operator to sort out the metal objects in the tobacco leaves. Because some metal objects are too small, this brings a lot of difficulties to the sorting work, which is time-consuming and labor-in...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for automatic separation and control of metal foreign matter in shredded tobacco to solve the problem that the metal separation in the prior art requires manual sorting by operators, which is time-consuming and labor-intensive, and also causes waste of tobacco leaves, and cannot truly realize the separation of tobacco leaves and metal foreign objects. automatic separation function

Images