Method for increasing tobacco slice line mixed matching precision
A technology of proportioning accuracy and tobacco flakes, which is applied in the field of proportioning and weighing control system of tobacco flakes line, can solve the problems of liquid material blanking deviation, large proportion weighing error, liquid material blanking, etc., and achieve the improvement of physical indicators , high proportioning precision, and the effect of improving stability
Active Publication Date: 2006-05-24
CHINA TOBACCO SHANDONG IND
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Problems solved by technology
However, the closing process of the electric ball valve under the liquid material takes 10 seconds. During this process, due to the physical characteristics of the liquid material, some liquid material is still discharged, resulting in a deviation of the liquid material discharge. According to the test and sampling, the deviation is 0.2-0.45kg
[0005] In addition, the stability of the weighing control module and the sequence control module is poor, the service life is short, the proportion weighing error is large, and the accuracy is low
Feeding errors and weighing errors can cause fluctuations in the moisture content of the mixture and the composition of the flakes, affecting the quality of the mixture
Method used
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[0014] Accompanying drawing has provided the structural principle block diagram of the present invention. The invention includes a liquid material feeding electric ball valve 1, a liquid material weighing hopper 2, a liquid material discharging electric ball valve 3, a powder material feeding machine 4, a powder material weighing hopper 5, a powder material discharging screw machine 6, and a high-speed mixer 7 , weighing sensors 8 and 9, industrial computer 10, lower computer 11 and frequency converter 12, industrial computer 10 adopts Advantech P42.4G / 256 / 40G machine. The lower computer 11 adopts an XPC2140A embedded controller.
[0015] The proportioning process of the present invention is controlled by an embedded controller XPC2140A and an industrial computer. Before the proportioning starts, set the feeding set value of the liquid material and the moisture content of the powder material through the man-machine interface of the industrial computer according to the formula...
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The present invention relates to a method for raising matching accuracy of tobacco sheet line mixed material. Said method includes (1) liquid material supply uses liquid material as matching reference, and adopts static measurement method; and (2) powder material supply adopts decrement method. Said invention also provides the required devices for implementing the above-mentioned two material supply methods and the concrete steps of said method for raising its matching accuracy.
Description
technical field [0001] The invention relates to a tobacco flake line proportioning and weighing control system. Background technique [0002] Tobacco sheet is a cigarette factory that uses tobacco dust, tobacco stems, tobacco leaf fragments, etc. produced during shredding and cigarette processing as raw materials, and mixes them with sheet glue, CMC, wood pulp fiber, water and other substances in a certain proportion after crushing them. Uniform to form a mixture, and then pressed into thin slices by pressing rollers, after drying, enter the shredder to cut into thin slices. The electronic weighing and batching system is the central part of the entire tobacco flake line in the tobacco industry, because the accuracy of the ratio of powder and liquid directly affects the stability of the moisture in the mixture, thereby affecting the stability of the flake components. The current tobacco mixture weighing and batching system mainly includes liquid material feeding electric bal...
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IPC IPC(8): A24B3/14
Inventor 孟庆华刘法民程林峰赵晨光赵强高卫李松
Owner CHINA TOBACCO SHANDONG IND