Steel cord metering system and fault judgment method
阅读说明：本技术 一种钢帘线计米系统及故障判断方法 (Steel cord metering system and fault judgment method ) 是由 宋占明 于 2019-12-04 设计创作，主要内容包括：本发明公开了一种钢帘线计米系统及故障判断方法,该计米系统包括放线旋转导轮、扭转检测机、副计米轮、直径检测器、第一定位导向轮、第二定位导向轮、主计米轮和收线旋转导轮,副计米轮处安装用于检测副计米轮圈数的副计米电眼,所述主计米轮处安装有用于检测主计米轮圈数的第一主计米电眼和第二主计米电眼,扭转检测机置于所述放线旋转导轮的上方,使放线后的钢帘线具有竖直方向的拉力,后经过副计米轮进行计米,所述第一定位导向轮位于所述副计米轮的上方,所述直径检测器安装于副计米轮和第一定位导向轮之间。本发明采用在主计米轮上安装两个电眼,副计米轮上安装一个电眼的三计米系统,减少计米差值停车次数,减少帘线损失和重绕人工等损失。(The invention discloses a steel cord length metering system and a fault judgment method, wherein the length metering system comprises a paying-off rotating guide wheel, a torsion detector, an auxiliary length metering wheel, a diameter detector, a first positioning guide wheel, a second positioning guide wheel, a main length metering wheel and a take-up rotating guide wheel, an auxiliary length metering electric eye for detecting the number of turns of the auxiliary length metering wheel is arranged at the auxiliary length metering wheel, a first main length metering electric eye and a second main length metering electric eye for detecting the number of turns of the main length metering wheel are arranged at the main length metering wheel, the torsion detector is arranged above the paying-off rotating guide wheel, so that a paid-off steel cord has vertical tension, the steel cord length is metered through the auxiliary length metering wheel, the first positioning guide wheel is positioned above the auxiliary length metering wheel, and the diameter detector is arranged between the auxiliary length metering wheel and the first positioning guide wheel. The invention adopts a three-meter system that two electric eyes are arranged on the main meter wheel and one electric eye is arranged on the auxiliary meter wheel, thereby reducing the number of parking times of meter difference values, and reducing the loss of cord, the manual rewinding and the like.)
1. A steel cord meter-counting system is characterized by comprising a paying-off rotating guide wheel (1), a torsion detector (2), an auxiliary meter-counting wheel (3), a diameter detector (4), a first positioning guide wheel (5), a second positioning guide wheel (6), a main meter-counting wheel (8) and a take-up rotating guide wheel (9), wherein the auxiliary meter-counting wheel (3) is provided with an auxiliary meter-counting electric eye (10) for detecting the number of turns of the auxiliary meter-counting wheel, the main meter-counting wheel (8) is provided with a first main meter-counting electric eye (11) and a second main meter-counting electric eye (22) for detecting the number of turns of the main meter-counting wheel, the torsion detector (2) is arranged above the paying-off rotating guide wheel (1), so that the paid-off steel cord has a tensile force in a vertical direction, meter counting is carried out through the auxiliary meter-counting wheel (3) afterwards, the first positioning guide wheel (5) is positioned above the auxiliary meter-counting wheel (3), the diameter detector (4) is arranged between the auxiliary meter counting wheel (3) and the first positioning guide wheel (5), the second positioning guide wheel (6) and the first positioning guide wheel (5) are horizontally arranged, and the take-up guide wheel (9) is arranged according to the wire moving direction of the steel cord.
2. A steel cord meter system according to claim 1, wherein the steel cord exit side of said sub meter wheel (3) is located directly below the filament entry side of the first positioning guide wheel (5) so that the length of the steel cord is in a vertically stretched state.
3. A steel cord meter counter system according to claim 1, wherein the surface of said secondary meter counter wheel (3) is symmetrically provided with two secondary through grooves (31), said two secondary through grooves (31) are preset at both ends of a diameter of a circle where said secondary meter counter wheel is located, said secondary meter counter wheel (3) outputs a low voltage when said secondary meter counter eye (10) is driven to rotate into said secondary through grooves (31), and said secondary meter counter eye (10) outputs a high voltage when placed at other positions of said secondary meter counter wheel (3).
4. A steel cord length measuring system according to claim 1, wherein the surface of the main length measuring wheel (8) is symmetrically provided with two main through grooves (81), the two main through grooves (81) are preset at two ends of a diameter of a circle where the main length measuring wheel is located, the main length measuring wheel (8) drives the first main length measuring electric eye (11) and/or the second main length measuring electric eye (12) to rotate into the main through grooves (81) to output a low voltage, and the first main length measuring electric eye (11) and/or the second main length measuring electric eye (12) outputs a high voltage when placed at other positions of the main length measuring wheel (8).
5. A steel cord meter counter system according to claim 1, characterized in that said system further comprises a third positioning and guiding wheel (7) mounted between said second positioning and guiding wheel (6) and said main meter counter wheel (8), arranged at a distance along the direction of the outgoing thread of said second positioning and guiding wheel (6) and close to said main meter counter wheel, ensuring that the incoming thread of the main meter counter wheel is free from curling.
6. A method of failure judgment by a steel cord meter-counting system according to any one of claims 1 to 5, characterized in that the method comprises the steps of:
s1, calculating the meter counts corresponding to the auxiliary meter-counting electric eye (10), the first main meter-counting electric eye (11) and the second main meter-counting electric eye (12) according to the real-time detection values corresponding to the three electric eyes, and respectively recording the meter counts as Lfu，Lzhu1And Lzhu2；
S2 calculating the difference value 1D1＝|Lzhu1-LfuL, |; difference 2D2＝|Lzhu2-LfuL, difference 3D3＝|Lzhu1-Lzhu2L, set D1、D2And D3The alarm difference value and the normal value range;
s3 if D2Within a normal range of values, and D1And/or D3If the system is not in the normal range, the system does not stop, the meter is switched to a second main meter electricity eye (12), and meanwhile, an alarm is given, and the first main meter electricity eye (11) is judged to have a fault; otherwise:
if D is1In the normal range, and D2And/or D3Is not in normalIn the range, the system does not stop, alarms at the same time, and judges that the second main meter electricity eye (12) has a fault; otherwise:
if D is3In the normal range, and D1And/or D2If the system is not in the normal range, the system does not stop, and simultaneously alarms to judge the fault of the auxiliary meter electric eye (10); otherwise:
if D is1、D2And D3When the normal value range is exceeded, the system stops, and simultaneously alarms to judge the system fault.
Technical Field
The invention relates to the technical field of steel cord production, in particular to a steel cord metering system and a fault judgment method.
Background
In the existing steel cord production, a counter is usually used for controlling the length of a steel cord, when the counter has an error or a fault, the length of the steel cord counted by the counter is out of control, if the length difference of each wheel of the steel cord is too large, a take-up reel is scrapped, and the cord is wasted, and rewinding labor is increased to cause waste.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects of the prior art, the invention provides a steel cord metering system, which solves the problems of more parking times and cord waste caused by metering errors.
The technical scheme is as follows: the steel cord metering system comprises a paying-off rotary guide wheel, a torsion detector, an auxiliary metering wheel, a diameter detector, a first positioning guide wheel, a second positioning guide wheel, a main metering wheel and a taking-up rotary guide wheel, the auxiliary meter counting wheel is provided with an auxiliary meter counting electric eye for detecting the number of turns of the auxiliary meter counting wheel, the main meter counting wheel is provided with a first main meter counting electric eye and a second main meter counting electric eye for detecting the number of turns of the main meter counting wheel, the torsion detector is arranged above the paying-off rotating guide wheel, so that the paid-off steel cord has a tensile force in the vertical direction, and then meter counting is carried out through the auxiliary meter counting wheel, the first positioning guide wheel is positioned above the auxiliary meter counting wheel, the diameter detector is arranged between the auxiliary meter counting wheel and the first positioning guide wheel, the second positioning guide wheel and the first positioning guide wheel are horizontally arranged, and the take-up guide wheel is arranged according to the wire moving direction of the steel cord.
Further, comprising:
and the steel cord outlet side of the auxiliary meter counting wheel is positioned right below the wire inlet side of the first positioning guide wheel, so that the steel cord at the section is in a vertical stretching state.
Further, comprising:
two auxiliary through grooves are symmetrically formed in the surface of the auxiliary meter counting wheel, the two auxiliary through grooves are preset at two ends of one diameter of a circle where the auxiliary meter counting wheel is located, the auxiliary meter counting wheel drives the auxiliary meter counting electric eye to rotate into the auxiliary through grooves and outputs low voltage, and the auxiliary meter counting electric eye outputs high voltage when arranged at other positions of the auxiliary meter counting wheel.
Further, comprising:
two main through grooves are symmetrically formed in the surface of the main meter counting wheel, the two main through grooves are preset at two ends of one diameter of a circle where the main meter counting wheel is located, the main meter counting wheel drives a first main meter counting electric eye and/or a second main meter counting electric eye to rotate into the main through grooves, low voltage is output, and high voltage is output when the first main meter counting electric eye and/or the second main meter counting electric eye are/is arranged at other positions of the main meter counting wheel.
Further, comprising:
the system also comprises a third positioning guide wheel which is arranged between the second positioning guide wheel and the main metering wheel, is arranged at a certain distance along the wire outlet direction of the second positioning guide wheel and is close to the main metering wheel, so that the wire inlet position of the main metering wheel is ensured to be not curled.
A fault judgment method realized according to the steel cord length metering system comprises the following steps:
s1, calculating the meter number corresponding to the auxiliary meter-meter electric eye, the first main meter-meter electric eye and the second main meter-meter electric eye according to the real-time detection values corresponding to the three electric eyes, and respectively recording the meter number as Lfu，Lzhu1And Lzhu2；
S2 calculating the difference D1＝|Lzhu1-LfuL, |; difference D2＝|Lzhu2-LfuL, difference D3＝|Lzhu1-Lzhu2L, set D1、D2And D3The alarm difference value and the normal value range;
s3 if D2Within a normal range of values, and D1And/or D3If the system is not in the normal range, the system does not stop, the meter is switched to a second main meter electricity eye, and meanwhile, an alarm is given, and the first main meter electricity eye is judged to have a fault; otherwise:
if D is1In the normal range, and D2And/or D3If the second main meter electricity eye is not in the normal range, the system does not stop, alarms, and judges that the second main meter electricity eye has a fault; otherwise:
if D is3In the normal range, and D1And/or D2If the system is not in the normal range, the system does not stop, and simultaneously alarms to judge the fault of the auxiliary meter-counting electric eye; otherwise:
if D is1、D2And D3If the values exceed the normal value range, the system stops, and simultaneously alarms to judge the system fault.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: 1. according to the invention, a three-meter system with two electric eyes arranged on a main meter wheel and one electric eye arranged on an auxiliary meter wheel is adopted, so that the number of times of parking by meter difference is reduced, and the cord loss, rewinding labor loss and the like are reduced; 2. through grooves are reserved on the main metering wheel and the auxiliary metering wheel, and one-time counting is determined through the corresponding relation between the through grooves and the electric eyes, so that accurate metering is realized; 3. the position relation among all the guide wheels enables the integral metering of the steel cord to be more accurate, and the waste of the steel cord is reduced.
Drawings
FIG. 1 is a schematic structural view of a steel cord length measuring system of the present invention;
fig. 2 is a flowchart of a fault determination method of the present invention.
Detailed Description
As shown in figure 1, the steel cord meter-counting system of the invention comprises a paying-off rotary guide wheel 1, a torsion detector 2, an auxiliary meter-counting
Specifically, the steel cord outlet side of the auxiliary meter counting
Two crescent-shaped auxiliary through grooves 31 are symmetrically formed in the surface of the auxiliary meter counting
In one embodiment of the invention, the system further comprises a third positioning and guiding wheel 7, which is arranged between said second positioning and guiding wheel 6 and the
As shown in fig. 2, a fault judgment method implemented according to the steel cord meter-counting system includes the following steps:
s1, calculating the meter number corresponding to the auxiliary meter-meter electric eye, the first main meter-meter electric eye and the second main meter-meter electric eye according to the real-time detection values corresponding to the three electric eyes, and respectively recording the meter number as Lfu，Lzhu1And Lzhu2The electric eye switches from low voltage to high voltage counting once.
S2 calculating the difference D1＝|Lzhu1-LfuL, |; difference D2＝|Lzhu2-LfuL, difference D3＝|Lzhu1-Lzhu2L, set D1、D2And D3In an embodiment of the present invention, the normal values of the difference value 1, the difference value 2, and the
S3 if D2Within a normal range of values, and D1And D3One or two of the electric eyes are not in the normal range, the system does not stop, the metering is switched to a second main metering electric eye, and an alarm is given out at the same time: the difference value is alarmed, and the fault of the first main meter electric eye is judged; the alarm indicates that the electric eye has a fault, and the difference value 2 does not exceed the set value, indicates that the second main meter electric eye and the auxiliary meter electric eye are normal, so that the fault of the first main meter electric eye is judged;
if D is1In the normal range, and D2And D3If one or two of the electric eyes are not in the normal range, the system does not stop, alarms simultaneously, and judges that the second main meter electric eye has a fault, wherein the difference value 1 does not exceed the set value, which indicates that the first main meter electric eye and the auxiliary meter electric eye are normal, so that the second main meter electric eye fault is judged;
if D is3In the normal range, and D1And D2If one or two of the electric eyes are not in the normal range, the system does not stop, alarms at the same time, and judges that the auxiliary meter electric eye has a fault; here, the alarm indicates that there is an electric eye fault, and the
if D is1、D2And D3If the values exceed the normal value range, the system stops, and simultaneously alarms to judge the system fault. The three difference value reports are all reported to indicate that at least two metering electric eyes have faults, and the system cannot judge. The three-eye metering can be compared to judge which eye has a problem, only one of the three-eye metering is damaged when the three-eye metering fails under normal conditions, and the condition that two eyes are damaged simultaneously almost does not exist, so that the three-eye metering is enough, and the cost is not increased and the eyes are charged again. The efficiency is improved more, and the cost is saved.
The system does not stop alarming, a maintenance worker needs to reset the password after the system is maintained after the system is full and the system is released, and the system can be driven after the system is confirmed to be in production and shifts.
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