Operation control method and control system of multi-drive chain conveying line

Abstract

The invention relates to the field of conveying equipment and particularly discloses an operation control method and a control system of a multi-drive chain conveying line. The control method comprises the steps that the current position of a tensioning device detection position is obtained in real time, and if a detection result is within the operation interval of the tensioning device detection position, the tightness of a chain is confirmed to be proper and a driving motor is enabled to operate at normal speed; if the detection result is larger than the upper limit of the operation interval, the chain is confirmed to be too loose and the driving motor is enabled to accelerate; and if the detection result is smaller than the lower limit of the operation interval, the chain is confirmed to be too tight and the driving motor is enabled to decelerate. The control system is characterized in that a detection unit detects and outputs a current position signal of the tensioning device detection position in real time, and then a controller confirms the tightness of the chain to enable the driving motor to accelerate, decelerate or operate at normal speed according to the position indicated by the detection result relative to the preset tensioning device detection position. By adjusting the rotating speed of the driving motor in real time according to the position change of a tensioning device, the chain is prevented from being too loose or too tight and the stable operation of the conveying line is guaranteed.

Description

technical field [0001] The invention relates to the field of conveying equipment, in particular to an operation control method and control system for a multi-drive chain conveying line, which helps to maintain the stable operation of the chain conveying line. Background technique [0002] In the production line of a modern factory, there are many ways to transport workpieces, among which chain conveyor lines (air or ground) are more commonly used. For example, the suspension conveyor is a typical chain-type continuous conveying equipment, which is mainly composed of traction chain (hereinafter referred to as chain), carriage, spreader, overhead track, driving device, tensioning device, safety device and other components: overhead The track forms a closed loop; the chain forms the same closed conveying line as the overhead track through a horizontal, vertical or inclined redirecting device; the carriage is connected to the chain at equal intervals and can run along the convey...

AI Technical Summary

Problems solved by technology

There are two main problems in this solution: first, the cumulative error in the control process is inevitable and difficult to eliminate; second, the loading of each part of the chain is inconsistent, which will pull the tensioning device, resulting in unbalanced chain tension. The chain tension is greater than the traction force, there will be problems such as crawling or parking

These factors will affect the smooth operation of the entire multi-drive chain conveyor line, especially for the case where the track of the conveyor line rises and falls, the problem of inconsistent tension in the chain due to the rise and fall of the track is more serious

In view of the fact that there are major flaws in the scheme of using the encoder to control the motor speed, it is necessary to optimize the design

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