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A Design Method of Oven Nozzle for Gravure Printing Machine

A design method and gravure printing machine technology, applied to the general parts of printing machinery, printing machines, printing, etc., can solve problems such as energy waste, achieve the effects of increasing drying time, reducing heat loss, and avoiding insufficient drying

Inactive Publication Date: 2018-04-10
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a design method for the tuyere of the gravure printing machine oven, the tuyere arrangement and the form of the tuyere designed by the method can obtain a more reasonable drying air volume distribution and air outlet form, which is in line with the air volume of different stages of ink drying meet the demand, realize the uniform and orderly flow of dry hot air, and solve the problem of energy waste caused by the unreasonable design of the tuyere in the existing oven

Method used

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  • A Design Method of Oven Nozzle for Gravure Printing Machine
  • A Design Method of Oven Nozzle for Gravure Printing Machine
  • A Design Method of Oven Nozzle for Gravure Printing Machine

Examples

Experimental program
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Effect test

Embodiment 1

[0076] Step 1, based on the ink drying time T (0.45s) provided by the ink manufacturer, the maximum operating speed of the gravure printing machine is 200 m / min, and the minimum length of the drying box is calculated according to the following formula (1)

[0077] L=V×T=1500mm (1);

[0078] Step 2, divide the drying area of ​​the gravure printer oven 3; divide T into t 1 (pre-drying time 1.95×10 -1 s), t 2 (Constant speed drying time 8.1×10 -2 s), t 3 (Slow drying time 1.08×10 -1 s), t 4 (compensated drying time 6.6×10 -2 s), t 1 +t 2 +t 3 +t 4 =0.449s≈0.45s, the ink drying process is divided into four drying stages: pre-drying stage, constant-speed drying stage, slow-speed drying stage and compensation drying stage, according to the four drying stages, correspondingly divide the gravure printing machine oven The four drying areas are: pre-drying area, constant-speed drying area, slow-speed drying area and compensation drying area.

[0079] Step 3, calculating the ...

Embodiment 2

[0105] Step 1, based on the ink drying time T (0.45s) provided by the ink manufacturer, the maximum operating speed of the gravure printing machine is 200 m / min, and the minimum length of the drying box is calculated according to the following formula (1)

[0106] L=V×T=1500mm (1);

[0107] Step 2, divide the drying area of ​​the gravure machine oven 3; divide T into t 1 (pre-drying time 1.95×10 -1 s), t 2 (Constant speed drying time 8.1×10 -2 s), t 3 (Slow drying time 1.08×10 -1 s), t 4 (compensated drying time 6.6×10 -2 s), t 1 +t 2 +t 3 +t 4 =0.449s≈0.45s, the ink drying process is divided into four drying stages: pre-drying stage, constant-speed drying stage, slow-speed drying stage and compensation drying stage, according to the four drying stages, correspondingly divide the gravure printing machine oven The four drying areas are: pre-drying area, constant-speed drying area, slow-speed drying area and compensation drying area.

[0108] Step 3, calculating the ...

Embodiment 3

[0134] Step 1, based on the ink drying time T (0.45s) provided by the ink manufacturer, the maximum operating speed of the gravure printing machine is 200 m / min, and the minimum length of the drying box is calculated according to the following formula (1)

[0135] L=V×T=1500mm (1);

[0136] Step 2, divide the drying area of ​​the gravure printer oven 3; divide T into t 1 (pre-drying time 1.95×10 -1 s), t 2 (Constant speed drying time 8.1×10 -2 s), t 3 (Slow drying time 1.08×10 -1 s), t 4 (compensated drying time 6.6×10 -2 s), t 1 +t 2 +t 3 +t 4 =0.449s≈0.45s, the ink drying process is divided into four drying stages: pre-drying stage, constant-speed drying stage, slow-speed drying stage and compensation drying stage, according to the four drying stages, correspondingly divide the gravure printing machine oven The four drying areas are: pre-drying area, constant-speed drying area, slow-speed drying area and compensation drying area.

[0137] Step 3, calculating the ...

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Abstract

The invention discloses a design method for tuyeres of a gravure press drying oven. The design method specifically comprises the following steps that the minimum length L of the gravure press drying oven is determined; drying areas of the gravure press drying oven are divided; the length of each divided drying area is calculated according to the obtained minimum length L of the gravure press drying oven; the tuyere number of each drying area is calculated according to the length of the corresponding drying area; and according to the printing ink drying characteristics of all the divided drying areas, tuyere structures suitable for the different drying areas are designed. More reasonable drying air distribution and air-out forms can be obtained through tuyere arrangements and forms which are designed through the method, and air requirements of printing ink drying in different stages are met; uniform and sequential flowing of dried hot air are achieved, and the problems that energy is wasted due to the fact that the tuyere design of an existing drying oven is unreasonable is solved.

Description

technical field [0001] The invention belongs to the technical field of printing machinery, and relates to a design method for an oven air nozzle of a gravure printing machine. Background technique [0002] The oven of the gravure printing machine is the largest energy-consuming part of the whole machine. The performance of the oven of the gravure printing machine is an important index for evaluating the performance of the gravure printing machine, and plays an important role in improving the printing effect and drying efficiency of printed matter. [0003] Chinese invention patent (patent number: ZL201310479436.9, title of invention: a printing machine drying box, publication number: 103568539A, publication date: 2014.02.12) discloses a drying box. The drying box is composed of an air inlet and an air outlet installed on the side wall, a plurality of air nozzles in a horizontal position with the air inlet, and a return air pipe on the partition. The outlet of the return air ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F23/04
CPCB41F23/0426B41F23/0466
Inventor 刘琳琳万初亮李凯凯武吉梅
Owner XIAN UNIV OF TECH
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