CN-117585396-B - Belt deviation monitoring method for belt punching production line

CN117585396BCN 117585396 BCN117585396 BCN 117585396BCN-117585396-B

Abstract

The invention provides a belt deviation monitoring method for a belt punching production line, which is characterized in that a monitoring point is arranged at the far end of a belt punching mechanism in the belt feeding direction through a rear datum point of the belt punching mechanism, the monitoring point can detect the deviation of a far-end belt, the controller can acquire the deviation of the monitoring point, the belt deviation of a punching position can be predicted and calculated, and when the predicted and calculated deviation exceeds a preset value, early warning or a stopping instruction can be sent.

Inventors

SHI JILU
YAN JIANWEI
LI YANG
SUN XING
Xie Senqi
LIU ZHEN
TIAN DAFEI
LI JUNYUAN
TANG SHUFENG

Assignees

宁夏天地奔牛实业集团有限公司

Dates

Publication Date: 20260512
Application Date: 20231128

Claims (3)

1. A belt deviation monitoring method for a belt punching production line is characterized by comprising the following steps: setting A, B, C monitoring base points on a belt conveying frame of a belt punching production line, wherein a point A is used as a reference point, is arranged at the rear of a belt punching mechanism and is positioned at the edge of one side of a belt, a point B is arranged at the central line of the belt punching mechanism, namely the intersection point of the punching position and the edge of the belt, and a point C is arranged at the front of the belt feeding direction of the belt punching mechanism and is arranged at the edge of the belt on the same side as the point A, wherein the central line distance between the point A and the point B is a preset distance, and the linear distance between the point A and the point C is N times the preset distance between the point A and the point B; Step two, a belt offset monitoring device is arranged at the point C, and the offset D of the belt positioned at the point C is measured; setting a controller, wherein the controller is electrically connected with the belt offset monitoring device, receives a measurement signal of the belt offset monitoring device, obtains a belt offset D of a point C according to the measurement signal, predicts and calculates a belt offset E of a punching position of the point B according to the belt offset D of the point C, and the prediction calculation formula of the belt offset E is that the offset E=the offset D/N; Setting a preset value of a belt offset E, monitoring the predicted and calculated belt offset E by a controller, comparing the predicted and calculated belt offset E with the preset value in real time, and when the predicted and calculated belt offset E is larger than or smaller than the preset value, carrying out early warning prompt or sending a parking instruction by the controller; The controller is a PLC or an industrial personal computer.
2. The method for monitoring belt deviation of a belt punching production line according to claim 1, wherein the belt deviation monitoring device is a light curtain sensor, the light curtain sensor is arranged on a belt conveying frame and consists of a laser emitter and a laser receiver, the laser emitter and the laser receiver are electrically connected with a controller, the laser emitter is transversely arranged above the belt, the laser receiver is transversely arranged below the belt, the laser emitter and the laser receiver are mutually perpendicular, the laser receiver is used for receiving infrared rays emitted by the corresponding side laser emitter, a protective light curtain is generated, the protective light curtain covers the edge of the belt, and the deviation D of the belt is measured.
3. The method for monitoring belt deviation of a belt punching production line according to claim 1, wherein the belt deviation monitoring device is a laser range finder, is arranged on a belt conveying frame and is positioned on one side of a belt and is perpendicular to the side edge of the belt, and the laser range finder is electrically connected with a controller and is used for measuring the deviation D of the belt.

Description

Belt deviation monitoring method for belt punching production line Technical Field The invention relates to the technical field of belt deviation monitoring, in particular to a belt deviation monitoring method for a belt punching production line. Background The belt on the belt traction bucket elevator adopts special reinforced tearing-resistant polyester canvas or steel wire tearing-resistant layer materials, the belt plays an important role as an important part of equipment, a hopper is fixedly connected on the belt, and punching processing is needed to be carried out on the belt in advance. The existing production line for the punching procedure is characterized in that winding machines are arranged at two ends of a punching platform, after a belt is released by one winding machine, the belt enters the punching platform to punch holes, the punched belt is collected by the other winding machine, and in the punching process, the belt is slightly deviated in the continuous punching and conveying process due to the fact that the quality and the length of the belt are large, so that the accuracy of the punching position is reduced, deviation occurs, and workers need to correct deviation in time. In the prior art, the position change of a measuring belt is measured through electronic equipment, for example, the authorized bulletin number is CN214421602U, and a deviation pre-warning system of a coal conveying belt of a thermal power plant is disclosed, by arranging a laser emitter and a laser receiver at the two side edges of the coal conveying belt, the shielding quantity of laser beam values at the two side edges of the coal conveying belt is measured on line in the running process of the coal conveying belt, when the shielding quantity exceeds or is smaller than a preset standard value, a computer control alarm is started, an alarm signal is sent to the outside, the maintenance of workers is facilitated, but because the punching precision requirement of a production line of a belt punching process is higher, the error of punching position must be controlled within + -1 mm, and the above-mentioned detection mode precision is limited, and is not suitable for the belt punching process production line, in order to prevent the belt off tracking phenomenon that is punched, the method that generally adopts at present is to confirm next punching position and confirm whether the belt off tracking through manual measurement after each punching, if off tracking then correct the belt offset through adjusting the relative position of reel, therefore, the process of manual measurement confirm whether off tracking is very loaded down with trivial details, workman intensity of labour is big, the spirit is highly concentrated, still need to verify repeatedly in order to guarantee the accuracy, even need double cooperation, in order to improve the accuracy, it is time consuming and laborious, production efficiency is low. Disclosure of Invention In view of the above, it is necessary to provide a belt deviation monitoring method for a belt punching production line, which has high monitoring accuracy and can early warn belt deviation in advance. A belt deviation monitoring method for a belt punching production line comprises the following steps: setting A, B, C monitoring base points on a belt conveying frame of a belt punching production line, wherein a point A is used as a reference point, is arranged at the rear of a belt punching mechanism and is positioned at the edge of one side of a belt, a point B is arranged at the central line of the belt punching mechanism, namely the intersection point of the punching position and the edge of the belt, and a point C is arranged at the front of the belt feeding direction of the belt punching mechanism and is arranged at the edge of the belt on the same side as the point A, wherein the central line distance between the point A and the point B is a preset distance, and the linear distance between the point A and the point C is N times the preset distance between the point A and the point B; Step two, a belt offset monitoring device is arranged at the point C, and the offset D of the belt positioned at the point C is measured; Setting a controller, wherein the controller is electrically connected with the belt offset monitoring device, receives a measurement signal of the belt offset monitoring device, obtains a belt offset D of a point C according to the measurement signal of the belt offset monitoring device, predicts and calculates a belt offset E of a punching position of the point B according to the belt offset D of the point C, and the prediction calculation formula of the belt offset E is that the offset E=the offset D/N; And fourthly, setting a preset value of the belt offset E, monitoring the belt offset E obtained by prediction calculation by the controller, comparing the belt offset E obtained by prediction calculation with the preset value in real time, and carrying out earl