Equipment and method for improving density uniformity of pre-compacted and packaged blank of tobacco

Abstract

The invention provides equipment and a method for improving density uniformity of a pre-compacted and packaged blank of tobacco. The equipment comprises a feeding cover, detecting mechanisms, two-stage multi-plate homogenizing devices, a pneumatic or electric homogenizing device, falling hoppers, a conveyor belt, a driving device, and two-stage multi-plate homogenizers; the feeding cover is mounted above a pre-compacting and reciprocating feeding machine body; the detecting mechanisms are symmetrically mounted on two sides of the feeding cover; the two-stage multi-plate homogenizing devices are mounted outside the detecting mechanisms; the pneumatic or electric homogenizing devices are mounted above the feeding cover and vertical to the material falling direction of a feeding belt at the previous stage; the falling hoppers are mounted on two sides of the machine body; the conveying belt and the driving device are mounted between the falling hoppers on two sides and positioned below the feeding cover; the second-stage multi-plate homogenizers are mounted in the falling hoppers at two sides of the machine body; the second-stage multi-plate homogenizers and the second-stage multi-plate homogenizing devices are respectively connected through link mechanisms and are all connected with a pneumatic cylinder or an electric cylinder; and a servo control system is electrically connected with the two-stage multi-plate homogenizing devices, the detecting mechanisms and the pneumatic or electric homogenizing devices. With the adoption of the equipment, the density uniformity of the pre-compacted and packaged blank of tobacco can be detected and adjusted on line, and thus the density uniformity of the pre-compacted and packaged blank of tobacco can be improved.

Description

technical field [0001] The invention relates to the technical field of adjusting and detecting pre-compressed packaging density of tobacco sheets on a threshing and re-drying line in the tobacco industry. Background technique [0002] At present, in the threshing and redrying process and equipment at home and abroad, there are generally three ways to detect and adjust the density uniformity of the pre-pressed and packaged tobacco blanks. One is the off-line nine-point sampling method. The main disadvantages of this method are: 1. Breaking the cigarette pack, causing unnecessary waste; 2. Failure to get the results in time, resulting in a serious lag in adjusting the density of the cigarette pack, or even only playing the role of evaluation and detection but not the actual adjustment; the second is X The main disadvantages of this method are as follows: 1. X-rays are radioactive substances, which cannot be sealed and isolated during use, causing personal damage to users; 2. T...

AI Technical Summary

Problems solved by technology

[0002] At present, in the threshing and redrying process and equipment at home and abroad, there are generally three ways to detect and adjust the density uniformity of the pre-pressed and packaged tobacco blanks. One is the off-line nine-point sampling method. The main disadvantages of this method are: 1. Breaking the cigarette pack, causing unnecessary waste; 2. Failure to get the results in time, resulting in a serious lag in adjusting the density of the cigarette pack, or even only playing the role of evaluation and detection but not the actual adjustment; the second is X The main disadvantages of this method are as follows: 1. X-rays are radioactive substances, which cannot be sealed and isolated during use, causing personal damage to users; 2. The density of tobacco blanks cannot be adjusted in time. At the end of the production line, multiple packs of products have been produced in the previous section during the inspection. When adjusting the front section according to the inspection results, due to the long feedback path, the state of the smoke sheet has changed at this time. If it is adjusted again at this time, the adjusted state is not The current state of inspection, and therefore severe lag, is not conducive to improving the uniformity of the density of the tobacco after baling

The third method is pressure sensor detection. The main disadvantage of this method is that the pressure sensor is easily damaged, and it is easy to be distorted during the detection process, and it is difficult to convert the electronic control program.

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