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Automatic control method and system for uniform spreading

A material spreading and uniform technology, applied in the direction of conveyor control device, continuous material flow weighing equipment, vibrating conveyor, etc., can solve the problems of no feeding feedback, no closed-loop control, and inability to meet the processing requirements of subsequent processing procedures, etc. , to achieve the effect of solving material discontinuity and strong applicability

Pending Publication Date: 2022-02-08
YUNNAN KUNMING SHIPBUILDING DESIGN & RESEARCH INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the fields of tobacco, tea, food, etc., some large-scale enterprises have realized the control automation of the production line. In the specific process links on the production line, if the material is sampled and tested according to the process requirements, or the material status is high The required process links, such as: set a fixed conveying speed for the production and conveying equipment, and then set a fixed material spreading time. The material spreading state formed by such a simple material spreading control method does not have closed-loop control in the material picking process. There is no feeding feedback, so the continuity of the material state after taking the material is not strong, and the material is sparse
Such a control method can no longer meet the processing requirements of the subsequent processing procedures.

Method used

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  • Automatic control method and system for uniform spreading
  • Automatic control method and system for uniform spreading
  • Automatic control method and system for uniform spreading

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1 An automatic control system for evenly spreading materials. Along the feeding direction, there are climbing belt conveyor 1, drop hopper 2, dynamic electronic scale 3, vibrating tank 4, incoming material detection photoelectric tube 5, frequency conversion belt conveyor 6, The detection of the photoelectric cell 7 is completed, the flap valve 9 and the remaining material conveying belt 8 are arranged on the vibrating tank, and each component is kept connected with the PLC controller 10; the dynamic electronic scale is used to weigh the passing materials and can receive the weight Demand information, real-time feedback of the weight of the material passing through; the vibration tank is used to connect with the dynamic electronic scale, and the material is spread and conveyed by vibration; the incoming material detection photocell is installed on the incoming and outgoing of the frequency conversion belt conveyor respectively. The material end is used to sens...

Embodiment 2

[0043] Embodiment 2: a kind of automatic control method of even material spreading, on the basis of the equipment system of embodiment 1, this method comprises:

[0044] First, the material from the attached figure 2The climbing belt conveyor 1 in the conveyor transports the tobacco leaves to the hopper 2, and the tobacco leaves fall on the belt conveyor of the dynamic electronic scale 3 through the hopper 2. The main function of the dynamic belt scale is to weigh the weight of the tobacco leaves that need to be detected or sampled, such as When the tobacco leaves fall to the dynamic electronic scale 3 through the falling hopper 2, the programmable controller PLC will control the weight of the tobacco leaves required to pass through the dynamic electronic scale 3 according to the requirements of the set weight. Take the tobacco leaf weight of 3000g as an example to introduce:

[0045] 3000g=m 累积重量2 -m 累积重量1

[0046] In the formula: m 累积重量2 is the cumulative weight displa...

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Abstract

The invention discloses an automatic control method and system for uniform spreading, and the main principle is that a dynamic electronic scale is used for weighing passing materials, can receive weight demand information, and can feed back the weight of the passing materials in real time; a vibration groove is in butt joint with a dynamic electronic scale, and materials are spread and conveyed through vibration; an incoming material detection photoelectric tube senses the material, calculates the thickness of the material and transmits a signal to the PLC; and a variable-frequency belt conveyor is connected to the PLC, can process the received information, calculates a suitable current spreading speed value through closed-loop control, and outputs the suitable current spreading speed value to the variable-frequency belt conveyor to enable the variable-frequency belt conveyor to run at the speed. According to the invention, the parameter information of the existing equipment is utilized, and through closed-loop calculation control, the specific state information of the incoming material is distributed with the matched material receiving speed, so that the overall uniform and continuous material spreading effect is achieved, and the problems of discontinuous material and non-uniform material spreading state in the traditional open-loop control material spreading mode are solved.

Description

technical field [0001] The invention is the application of automatic control technology in the fields of tobacco, tea, food, industrial raw materials, etc., and relates to an automatic and uniform material spreading method based on the quality and volume of materials, more specifically, a uniform material spreading method Automatic control method and system. Background technique [0002] At present, in the fields of tobacco, tea, food, etc., some large-scale enterprises have realized the control automation of the production line. In the specific process links on the production line, if the material is sampled and tested according to the process requirements, or the material status is high The required process links, such as: set a fixed conveying speed for the production and conveying equipment, and then set a fixed material spreading time. The material spreading state formed by such a simple material spreading control method does not have closed-loop control in the material...

Claims

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Application Information

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IPC IPC(8): B65G27/04B65G27/34B65G43/00B65G47/52G01G11/14
CPCB65G27/04B65G27/34B65G43/00B65G47/52G01G11/14
Inventor 张云东李俊辉杨松李江乐张云杨晓华蒋明民游玲张光武经坤丁锐钱瑜李佶洋
Owner YUNNAN KUNMING SHIPBUILDING DESIGN & RESEARCH INSTITUTE