Cigarette block height detecting and controlling device

Abstract

The invention discloses a cigarette block height detecting and controlling device, and belongs to flexible loosening device in the field of tobacco manufacturing. At least one pair of height detectinggratings is axisymmetrically mounted on two side plates of an electronic scale belt in the feeding end of a pre-loosening device to obtain cigarette block height data detected in real time, a pre-loosening lifting device calculates the due height of an elevating mechanism and determines whether the elevating mechanism to rise or fall according to data of a cigarette block thickness difference feedback device, the elevating mechanism comprises a spiral elevator, and the elevating mechanism drives an upper deflection belt to move. The device can automatically adjust distance between upper and lower pre-loosening deflection belts according to the height of a cigarette block arranged on the conveying belt in the feeding end, so that the cigarette block can be pre-loosened with best effect, scrap formation is reduced, and the internal product quality is ensured. The device can be used to eliminate material jam of the pre-loosening device, ensure continuous production and stable quality, and further eliminate waste of material and labor forces and hidden quality troubles caused by material jamming.

Description

technical field [0001] The invention belongs to the field of tobacco machinery, in particular to a cigarette block height detection and control device, which belongs to the flexible loosening device in the field of tobacco production and manufacturing. Background technique [0002] During the tobacco industry’s silk-making process, the first process of most of the silk-making lines is to cut the threshed and re-baked cigarette packs into three to five pieces with a similar thickness by a vertical slitting machine, and then cut the tobacco bales into three to five pieces with similar thickness. The blocks are subjected to flexible and loose treatment, and the loose cigarette packs (blocks) enter the next process after moisture regaining treatment (see figure 1 ). The loosening effect of the cigarette block has obvious influence on the quality of the cigarette. [0003] The working principle of the pre-loosening equipment is: after being cut vertically, the cigarette blocks ...

AI Technical Summary

Problems solved by technology

Due to the different packing sizes, there is a large difference in the net length of the cigarette packs; at the same time, since the tobacco leaves of the silk-making thread are all randomly delivered from the warehouse, the cigarette packs are cut according to the fixed number of slices, which leads to the vertical cutting of cigarette blocks. There are differences in the thickness of

[0006] The second is the error of the equipment. The cigarette pack is sent into the vertical slitting machine by the conveyor belt, and cut into four or three pieces according to the process requirements (the number of slicing knives can be adjusted). The cumulative error of the three plate speeds results in inconsistent thickness of the cigarette block after vertical cutting

[0007] The existence of the above two problems leads to uneven thickness of the cut tobacco block. After the cigarette block is turned over by 90° and enters the pre-loose feeding belt and arranged in sequence, it presents a state of unevenness, with a height difference of 80-100 mm. When these cigarette pieces enter the pre-loosening process, the high cigarette pieces will withstand the upper flexure belt, resulting in the low cigarette pieces not being able to be flexed by the upper flexure belt. Stopping and cutting off materials, affecting product quality

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