Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Feeder flow automatic control method in tobacco primary processing line

A feeder and production line technology, applied in conveyor control devices, conveyor objects, transportation and packaging, etc., can solve problems affecting tobacco silk production efficiency and product quality, frequent start and stop of the bottom belt of the feeder, and material height. Uneven laying and other problems, to achieve the effect of simple mechanism, avoiding uneven accumulation and high degree of automation

Inactive Publication Date: 2015-12-02
CHINA TOBACCO JIANGSU INDAL
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the detection method of this material height is too simple, and the speed of the bottom belt is constant, and at the same time, it is affected by the uneven height of the material in the feeder, so that in actual production, the material often accumulates too high, resulting in feeding The machine bottom belt is frequently started and stopped, the height of the material on the slope lifting belt is not evenly laid, and the flow control is unstable
In addition, if the material accumulation is too high, especially for shredded tobacco products, it is easy to cause extrusion agglomeration or crushing
Therefore, the flow control method of the feeder of the tobacco shredded production line in the prior art has seriously affected the production efficiency and product quality of the shredded tobacco

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Feeder flow automatic control method in tobacco primary processing line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] According to the equipment control capability and process requirements, in this embodiment, the upper limit frequency H of the bottom belt motor is set to 50HZ, the lower limit frequency L is 30HZ, and the material standard height value h is 30CM.

[0029] After the production starts, the lifting belt runs, requiring the feeder to enter the discharging state. At this time, the laser ranging sensor detects the instantaneous height h of the material 1 is zero, the bottom belt motor runs at the upper limit frequency of 50HZ, and conveys materials to the lifting belt.

[0030] When the material reaches the detection position of the laser distance sensor, measure the instantaneous height h of the material 1 , input to the PLC controller, the h 1 Substitute into the mean filter model formula: Find the instantaneous average height h 1 ;The instantaneous height h set by this method 1 The acquisition period is 0.5 seconds, and the instantaneous average height within 3 secon...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a feeder flow automatic control method in a tobacco primary processing line, and belongs to the technical field of automatic control of tobacco primary processing equipment. The feeder flow automatic control method in the tobacco primary processing line measures the change of a material stacking height through a laser distance measuring sensor mounted in the joined place between a feeder and a lifting belt, and adjusts the operation frequency of a bottom belt motor in real time through a PLC and the PID operation of a frequency converter to prevent the phenomenon of nonuniform stacking of materials on the lifting belt and frequent starting / stop of the bottom belt motor, so that the material flow stability is guaranteed. Meanwhile, the material aggregation and smashing phenomenon is reduced; and the feeder flow automatic control method in the tobacco primary processing line has the characteristics of simple mechanism, precise control and high automation degree, and is suitable for various feeders in the tobacco primary processing line.

Description

technical field [0001] The invention relates to an automatic control method for the flow rate of a feeder in a tobacco shred production line, and belongs to the technical field of automatic control of tobacco shredded equipment. Background technique [0002] At present, the feeder of the tobacco shred production line mainly plays the role of connecting production and buffering the flow. The material is conveyed to the slope lifting belt through the bottom belt of the feeder, so as to enter the next process. Usually, a through-beam photoelectric switch is installed at the connection between the feeder and the slope lifting belt to detect the height of material accumulation. When the height of the material is lower than the position of the photoelectric switch, the bottom belt of the feeder continues to run and pushes the material to the joint. Conversely, when the height of the material exceeds the position of the photoelectric switch, the bottom belt of the feeder will stop...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B65G43/08
Inventor 董伟印德春周尚铧李坤岳安民赵瑜
Owner CHINA TOBACCO JIANGSU INDAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com