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Packing method and packing equipment for reducing density deviation in flue-cured tobacco packing box

A packaging box and inner density technology, applied in the field of tobacco, can solve the problems of high density of raised parts and uneven density in the box, etc., and achieve the effect of controllable falling process, avoiding mutual interference and reducing drying time.

Active Publication Date: 2010-06-16
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The moisture content of the tobacco sheet material and the accumulation state of the material on the feeder are in dynamic change; at the same time, the height of the material box is high, and the sheet tobacco is easy to form a free accumulation state during the falling process after the cloth is placed, that is, a convex cone in the middle; the pressure head When pressing down, the raised part has a higher density and the surrounding density is lower, resulting in uneven density in the box

Method used

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  • Packing method and packing equipment for reducing density deviation in flue-cured tobacco packing box
  • Packing method and packing equipment for reducing density deviation in flue-cured tobacco packing box
  • Packing method and packing equipment for reducing density deviation in flue-cured tobacco packing box

Examples

Experimental program
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Effect test

Embodiment 1

[0035] see Figure 1-7 Shown: In this case, the flow rate of the production line is 4000kg / h, and the device includes: a feeding belt conveyor 1 for conveying sheet tobacco materials, a double-connected pre-press machine frame 7 and a material box 2, and a row of five feeders Material equalizing nozzle 3 (the shape of the nozzle is circular, and the installation angle of the nozzle is 0-15°. The angle of each feeding nozzle can be adjusted according to the condition of the incoming material and the installation position of the nozzle in the material box to ensure that the incoming material is in the width Spread evenly in the direction, using compressed air (0.4MPa). Two groups of five blanking and leaf-laying nozzles 4 (the shape of the nozzle is elliptical, and the compressed air is 0.4MPa) are uniformly distributed on the height of the material box, the pressure head of the pre-press 6, two groups of material level photoelectric cells 5, close Switches, hydraulic cylinders...

Embodiment 2

[0040] see Figure 1-7 Shown: In this case, the flow rate of the production line is 6000kg / h, and the device includes: a feeding mechanism for conveying sheet tobacco materials, a double-connected pre-press machine frame and a material box, and a row of 10 uniform feeding nozzles (The shape of the nozzle is elliptical, and the installation angle of the nozzle is 0-15°. The angle of each nozzle can be adjusted according to the condition of the incoming material and the installation position of the nozzle in the material box to ensure that the incoming material is evenly spread in the width direction. Use Compressed air is 0.6MPa). Three groups of thirteen blanking and leaf-laying nozzles (the shape of the nozzle is round and the compressed air is 0.6MPa) are uniformly distributed on the height of the material box, the pressure head of the pre-press, three groups of material level photoelectric switches, proximity switches, Hydraulic cylinders, solenoid valves and other mechani...

Embodiment 3

[0045] see Figure 1-7 Shown: In this case, the flow rate of the production line is 12000kg / h, and the device includes: a feeding mechanism for conveying sheet tobacco materials, a double-type pre-press machine frame and a material box, and a row of 15 feeding uniform materials Nozzle (the shape of the nozzle is rectangular, and the installation angle of the nozzle is 0-15°. The angle of each nozzle can be adjusted according to the condition of the incoming material and the installation position of the nozzle in the material box to ensure that the incoming material is evenly spread in the width direction. Use Compressed air is 0.5MPa). Five groups of fifteen blanking and leaf-laying nozzles (the shape of the nozzle is rectangular, and the compressed air is 0.5MPa) uniformly distributed on the height of the material box, the pressure head of the pre-press, five groups of photoelectric switches for material level, proximity switches, hydraulic pressure Cylinders, solenoid valve...

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Abstract

The invention discloses a packing method for reducing density deviation in a flue-cured tobacco packing box, which is characterized in that: after tobacco is fed into a material box by conveying equipment; the fed material is uniformly dispersed and the drop material is uniformly laid through the air flow sprayed out by a fed material homogenizing nozzle and drop material laying nozzles, wherein the fed material homogenizing nozzle and drop material laying nozzles are arranged in the material box; and material level photoelectric tubes arranged on a material dropping box layer by layer correspondingly control the blowing work of each layer of drop material laying nozzles. Compared with the prior art, the method has the following advantages that: 1, because of adopting a pneumatic material homogenizing method, the mutual interference between a cloth blade plate and a pressing head in a mechanical mode is eliminated and uneven secondary material distribution or the greater deviation of the density distribution of the tobacco in the material box can be prevented; 2, by adopting the pneumatic material homogenizing method, the material more uniformly distributes in the material box, a material dropping process is controllable, and the density in the box is more uniform; and 3, by adopting the pneumatic material homogenizing method, the temperature of the tobacco material is reduced and the airing and wrapping time of the tobacco which enters a storeroom after being packed is shortened.

Description

Technical field: [0001] The invention relates to the field of tobacco, in particular to a packing method and equipment for reducing the density deviation in the packing box of re-cured sheet tobacco. Background technique: [0002] In the tobacco primary processing process, after leaf threshing and redrying, the tobacco sheets are weighed in the pre-pressing packaging system and packed in boxes. Generally, after rebaking, the moisture content of the sheet tobacco is 11.5%-13.0%, the temperature is 38°C-42°C, and the natural bulk density is 100Kg / m 3 ;Package is carried out in accordance with the "Packaging Standard for Leaf-threshing and Re-roasted Sheet Tobacco" (YC / T137-1998) of my country's tobacco industry, and the packing density is 370kg / m 3 . After packing, it is convenient for long-distance and short-distance transportation, warehouse storage and application in the cigarette industry. [0003] The density deviation rate (DVR) of the pre-pressed tobacco in the packa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65B1/04B65B1/24
Inventor 王洪权毛国强孟庆华张晓纲陶铁托
Owner ZHENGZHOU TOBACCO RES INST OF CNTC