A Constant Flow Control System and Belt Scale Fault Location Method

Abstract

The present invention relates to the technical field of shredded tobacco processing, and more specifically, to a constant flow control system and a fault location method for a belt scale, including a material distribution device, a temporary storage cabinet, and an electronic belt scale system. The belt weighing system is equipped with a limit tube; the electronic belt scale system includes a controller, idler rollers, driving rollers, and driven rollers. , the limit tube is located above the end of the belt: a laser rangefinder is installed above the belt; the driving roller is connected to a driving motor, and a rotary encoder is installed on the shaft of the driving motor; The sensors are located at different positions of the rollers. The invention can not only monitor the measurement accuracy of the belt scale in real time, but also accurately judge the location of the fault caused by the load cell, reduce the troubleshooting time, and reduce the process quality risk.

Description

technical field [0001] The invention relates to the technical field of shredded tobacco processing, and more specifically, to a constant flow control system and a belt scale fault location method. Background technique [0002] In the production and processing of shredded tobacco, a constant flow control system is essential, often including a material distribution device, a temporary storage cabinet, and an electronic belt scale. The upper position provides stable materials to the electronic belt scale; the electronic belt scale is used to control and monitor the flow and weight of the conveyed material in real time. However, the electronic belt scale lacks scientific and effective supervision methods during the production and operation process. The maintenance of the electronic belt scale is mainly concentrated on after-the-fact maintenance, and the preventive measures in advance are only spot checks before starting up, or running empty for a certain period of time in a stan...

AI Technical Summary

Problems solved by technology

However, the electronic belt scale lacks scientific and effective supervision methods during the production and operation process. The maintenance of the electronic belt scale is mainly concentrated on after-the-fact maintenance, and the preventive measures in advance are only spot checks before starting up, or running empty for a certain period of time in a stand-alone state. , Check the cumulative value of the belt scale. If the cumulative value is found to be abnormal, the adjustment is limited to the experience of the operator and maintenance personnel, and the data during the dry running process cannot be traced back, and it is impossible to detect the status of the belt scale and carry out targeted inspections. Maintenance, and if the belt scale fails, it is impossible to quickly locate the fault location, and the troubleshooting process is long

[0003] Chinese patent CN201410281120.3 discloses a state monitoring system of an electronic belt scale, including an electronic belt scale, a monitoring device and a processing device: when the tobacco leaves pass through the electronic belt scale, the monitoring device monitors the instantaneous flow P of the tobacco leaves; if 2300kg / h> When P≥2000kg / h, the processing device sends out a fault signal; if P≥2300kg / h, the processing device sends out a serious fault signal; although the above scheme can effectively ensure the instantaneous flow of materials passing through the electronic belt scale system, avoid excessive material processing Incomplete, but unable to quickly locate belt scale faults

Chinese patent CN201110253276.7 discloses an electronic belt scale and a measurement accuracy compensation method, which can calibrate the accuracy of the belt scale, but also cannot quickly locate the fault

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