CN205720726U - Wire rod broken wire detection system - Google Patents
Wire rod broken wire detection system Download PDFInfo
- Publication number
- CN205720726U CN205720726U CN201620221342.0U CN201620221342U CN205720726U CN 205720726 U CN205720726 U CN 205720726U CN 201620221342 U CN201620221342 U CN 201620221342U CN 205720726 U CN205720726 U CN 205720726U
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- wire rod
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- broken string
- wire
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Abstract
The open a kind of wire rod broken wire detection system of this utility model, this detecting system comprises: Torque test module, and its circuit connects the motor of traction wire rod, detects and exports motor torque values；Broken string monitoring module, it receives the motor torque values of Torque test module output, when the torque threshold that motor torque values is preset less than broken string monitoring module, then judges that on motor, the wire rod of traction breaks.This utility model uses the torque of the motor of vector-control frequency converter detection traction wire rod, judges whether the wire rod that motor is drawn breaks by the variable quantity of torque, eliminates the detector being exclusively used in detection wire rod broken string in prior art；Avoid wire rod facility owing to installing detector, produced wire rod facility and detector are finely adjusted whole operational requirements, simplify operation, reduce production cost simultaneously.
Description
Technical field
This utility model relates to the detection technique in wire production field, is specifically related to a kind of wire rod broken wire detection system.
Background technology
At present, the equipment such as wire drawing machine is the conventional equipment for producing wire rod.In the production process of wire rod, broken string is modal technical problem, when there is wire rod broken string, then needs to stop as early as possible and safely the production line of wire rod.Wherein can find that wire rod breaks the most timely for realizing, the burn out detection technology for wire rod is very important technical essential.
The conventional burn out detection technology of prior art is to use: produce equipment side wire rod carry out into path in the detector of such as photoelectric sensor etc. is set, this detector is for detecting wire rod in real time, when detecting that material broken string i.e. sends disconnection signal to the control end of production line, control end and implement emergent stopping production line according to this disconnection signal.
Chinese patent (publication number CN102877171) discloses a kind of broken yarn detection device, and this device includes mounting bracket, break and produce the thread break detector of disconnection signal and the alarm lamp pointed out for break alarm for detecting yarn.The top of yarn is located in mounting bracket front end, and thread break detector hangs on the front end of mounting bracket, and yarn passes from thread break detector, and alarm lamp is fixedly arranged in mounting bracket.Wherein, thread break detector uses and hangs upside down the U-shaped photoelectric sensor on the front end of mounting bracket.This broken yarn detection device arranges U-shaped photoelectric sensor, through photoelectric sensor in the course of yarn, make photoelectric sensor can monitor whether yarn breaks the most in real time, disconnection signal is sent to controlling end when there is broken string photoelectric sensor, control end and i.e. stop the production line of yarn, get rid of the disconnection problem of yarn or cause the equipment fault of broken string.
The advantage using detector is that it, to there is disconnection fault reaction quickly, can detect the broken string situation of wire rod in time.But, this technical scheme detecting wire rod broken string by detecting signal is used to need to install the detector of such as photoelectric sensor etc. at equipment side, when the wire rod carrying out different batches or different size or different structure, it is required for adjusting detector installation site on production equipment, adds production process；Detector is installed on production equipment simultaneously, and needs detector is carried out periodic maintenance, improve the holistic cost of wire production.
Utility model content
This utility model provides a kind of wire rod broken wire detection system, it is achieved i.e. do not detected the broken string of wire rod by detector, it is not necessary to adjust wire rod facility and the installation site of detector, reduces production cost.
For achieving the above object, this utility model provides a kind of wire rod broken wire detection system, is characterized in, this detecting system comprises:
Torque test module, its circuit connects the motor of traction wire rod, detects and export motor torque values；
Broken string monitoring module, it receives the motor torque values of Torque test module output, when the torque threshold that motor torque values is preset less than broken string monitoring module, then judges that on motor, the wire rod of traction breaks.
Above-mentioned Torque test module is vector-control frequency converter.
Said detecting system also comprises the timer of communication connection broken string monitoring module；Timer record motor torque values is held time less than the torque threshold preset, when holding time equal to or more than the time threshold preset, then judges that on motor, the wire rod of traction breaks.
Torque test module detection motor torque values is uploaded to the monitoring module that breaks；Broken string monitoring module judges the torque threshold that motor torque values is preset less than broken string monitoring module, then judge that the wire rod that motor is drawn breaks.
This utility model wire rod broken wire detection system and detection method are compared with the wire rod burn out detection technology of prior art, have an advantage in that, this utility model uses the torque of the motor of vector-control frequency converter detection traction wire rod, judge whether the wire rod that motor is drawn breaks by the variable quantity of torque, eliminate the detector being exclusively used in detection wire rod broken string in prior art；
This utility model need not install the detector of detection wire rod broken string, avoid wire rod facility owing to installing detector, produced wire rod facility and detector are finely adjusted whole operational requirements, simplify operation, simultaneously because wire rod facility need not install the detector of detection wire rod broken string, reduce the cost of production equipment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment one of the Torque test module of this utility model wire rod broken wire detection system；
Fig. 2 is the connection diagram of vector-control frequency converter；
Fig. 3 is the schematic diagram of the embodiment two of the Torque test module of this utility model wire rod broken wire detection system；
Fig. 4 is this utility model wire rod broken wire detection system by time threshold judges the chart of situation one that wire rod breaks；
Fig. 5 is this utility model wire rod broken wire detection system by time threshold judges the chart of situation two that wire rod breaks；
Fig. 6 is this utility model wire rod broken wire detection system by time threshold judges the chart of situation three that wire rod breaks.
Detailed description of the invention
Below in conjunction with accompanying drawing, further illustrate specific embodiment of the utility model.
The utility model discloses the embodiment of a kind of wire rod broken wire detection system, this detecting system comprises: Torque test module and broken string monitoring module.
Wherein, Torque test module uses vector-control frequency converter, and its circuit connects the motor of traction wire rod, for the motor torque values required for detection motor traction wire rod in real time.
The inlet circuit of broken string monitoring module connects the outfan of Torque test module, for receiving the motor torque values of Torque test module output, when the torque threshold that motor torque values is preset less than broken string monitoring module, then judges that on motor, the wire rod of traction breaks；If the torque threshold that motor torque values is preset more than or equal to broken string monitoring module, then it is assumed that on motor, the wire rod of traction is in normal production status.
In the present embodiment, wire rod broken wire detection system uses vector-control frequency converter to detect motor torque values in real time and is uploaded to the monitoring module that breaks, broken string monitoring module according to motor torque values and the comparative result of torque threshold preset, completes the judgement the operation whether wire rod that motor drawn breaks.
Further, when breaking monitoring module monitoring motor torque values (M), according to the thickness of wire rod, the torque threshold of required setting also can be different.Here the torque threshold set needs to be adjusted according to the mechanical loss of wire rod facility and the thickness of actual wire rod and material.Generally, the desirable scope of torque threshold be motor torque capacity 5% to motor torque capacity 15% between.
Such as, torque threshold can be set as the 5% of motor torque capacity according to the mechanical loss of wire rod facility and the thickness of actual wire rod and material, the 8% of motor torque capacity, the 10% of motor torque capacity, the 12% of motor torque capacity, the 15% etc. of motor torque capacity.
Preferably, the wire rod broken wire detection system disclosed in the present embodiment also comprises timer.This timer and broken string monitoring module communication connection, for recording motor torque values holding time less than the torque threshold preset, when holding time equal to or more than the time threshold preset, then judge that on motor, the wire rod of traction breaks；When holding time less than the time threshold preset, the most still judge that on motor, the wire rod of traction is normal production status, breaks.Here timer avoids maloperation, gets rid of the interference of error.
When normally working, owing to the bending of wire rod can cause motor torsional moment to reduce, motor can automatically control, and makes motor torsional moment recover rapidly.The time that motor torsional moment realizes automatically recovering is time threshold.
Further, time threshold can be adjusted according to factors such as wire material, torque value size, manufacturing technique requirents.
As it is shown in figure 1, the embodiment one of the vector-control frequency converter used by Torque test module.This vector-control frequency converter comprises: major loop terminal 101, main circuit electrolytic capacitor filter device 102, radiator 103, fan 104, charging indicator light 105, panel 106, panel terminal 107, base installing hole 108, keyboard base mounting groove 109.
Major loop terminal 101 is arranged at the side within vector-control frequency converter, fan 104 is installed in its underpart, main circuit electrolytic capacitor filter device 102 is arranged at the internal opposite side of vector-control frequency converter, radiator 103 is arranged at main circuit electrolytic capacitor filter device 102 bottom, charging indicator light 105 is arranged at the internal lower left of vector-control frequency converter, panel 106 is arranged at vector-control frequency converter bosom, store the various parameters of motor, it is connected with host computer by panel terminal 107, base installing hole 108 is positioned at a jiao of vector-control frequency converter external bottom end, converter is controlled for installing fixed vector, keyboard base mounting groove 109 and panel 106 are disposed in parallel in vector-control frequency converter bosom, for convenient, keyboard is installed.
Wherein, panel 106 comprises: connects the inversion module of main circuit electrolytic capacitor filter device 102, connect the driving module of inversion module, connects the control module driving module.Control module connects electric machines test module by terminal, and electric machines test modular circuit is connected to draw the motor of wire rod.
As shown in Figure 2, connection diagram for vector-control frequency converter, vector-control frequency converter 207 circuit connects power supply 201, it is disposed with disconnecting switch 202, chopper 203 between power supply 201 with vector-control frequency converter 207, exchanges input reactance device 204, catalyst 205 and input electromagnetic interface filter 206, be disposed with output electromagnetic interface filter 208 between vector-control frequency converter 207 and the motor 210 of traction wire rod and exchange output reactance device 209.
As it is shown on figure 3, be the embodiment two of vector-control frequency converter, being wherein provided with radiator 302 on vector-control frequency converter 303, the air outlet of radiator 302 is provided with turbofan 301.This embodiment changes the common blower fan that vector-control frequency converter 303 generally uses into turbofan 301, reduces power consumption, saved use cost, also solve the problem that noise is big, radiating efficiency is low that common blower fan causes.
The workflow being applicable to above-mentioned wire rod broken wire detection system disclosed in the utility model comprises the steps of
The material of the wire rod that S1, broken string monitoring module are drawn according to motor presets the torque threshold judging whether wire rod occurs broken string.
In practical operation, broken string monitoring module can preset several torque threshold grades respectively for the wire material that production equipment often produces, and each torque threshold grade is corresponding to a kind of wire rod.When needs carry out burn out detection to certain wire rod, the torque threshold of the monitoring module that will break is set to this kind of torque threshold grade corresponding to wire rod, simple operation.
S2, Torque test module detect the motor torque values that the motor of traction wire rod is exported in real time, and the motor torque values in each moment is uploaded to the monitoring module that breaks in real time.
Preferably, Torque test module can use vector-control frequency converter.Vector-control frequency converter, while detection motor torque values, obtains the torque needed for motor traction wire rod also by detection and checking computations, and generates torque instruction output to motor, controls the torque needed for motor output traction wire rod.
S3, broken string monitoring module receive the motor torque values uploaded of Torque test module, and are compared with the torque threshold preset by the motor torque values required for each moment motor traction wire rod in real time, it is judged that whether motor torque values is less than default torque threshold；The most then jump to step S4, if it is not, then jump to step S3.1.
Torque threshold needs the mechanical loss according to wire rod facility and the thickness of actual wire rod and material to be adjusted.
In the present embodiment, the torque required for motor traction wire rod is more than or equal to the 10% of motor torque capacity, then explanation wire rod breaks, and motor is in normal operating conditions；And the torque required for motor traction wire rod is less than the 10%, even equal to 0 of motor torque capacity, then explanation wire rod breaks.
Further, the torque threshold in the present embodiment takes the 10% of motor torque capacity, and this torque threshold can be adjusted according to the mechanical loss of wire rod facility and the thickness of actual wire rod and material.Generally, the desirable scope of torque threshold be motor torque capacity 5% to motor torque capacity 15% between.
Such as, torque threshold can be set as the 5% of motor torque capacity according to the mechanical loss of wire rod facility and the thickness of actual wire rod and material, the 8% of motor torque capacity, the 10% of motor torque capacity, the 12% of motor torque capacity, the 15% etc. of motor torque capacity.
S3.1, broken string monitoring module judge that the wire rod that motor is drawn does not occurs broken string situation, and wire rod facility keeps running well, and jumps to step S2, continue monitoring wire rod broken string situation in real time.
When torque required for S4, motor traction wire rod is less than preset torque threshold value, timer record motor torque values holding time and being uploaded to the monitoring module that breaks less than the torque threshold preset.
Whether S5, broken string monitoring module receive and hold time, and judge to hold time more than or equal to the time threshold preset；The most then jump to step S6；If it is not, then jump to step S5.1.
Further, it is determined that the time threshold of wire rod broken string can be adjusted according to the wire material of concrete detection.
In practical operation, broken string monitoring module can preset several time threshold grades respectively according to the wire material that production equipment often produces, and each time threshold grade is corresponding to a kind of wire rod.When needs carry out burn out detection to certain wire rod, the time threshold of the monitoring module that will break is set to this kind of time threshold grade corresponding to wire rod.
Illustrate by time threshold, one judges whether wire rod occurs three kinds of situations of broken string below by way of three charts.In the present embodiment, time threshold is set to 1 second, and torque threshold is set to the 10% of motor torque capacity.
As shown in Figure 4, for situation one, abscissa is time t, and vertical coordinate is motor torque values M.In wire production equipment running process, 0 to t0 moment motor torque values M is maintained at above equal to torque threshold, it is judged that wire rod facility is in normal operating phase；In t0 to the t1 moment, motor torque values M is less than torque threshold；After the t1 moment, motor torque values M recovers to more than or equal to torque threshold.Wherein t0 to t1 moment motor torque values M is less than 1s less than the persistent period of torque threshold, and motor torque values M recovers to more than or equal to torque threshold from the t1 moment, so broken string monitoring module judges that the wire rod that motor is drawn does not occurs broken string situation, wire rod facility keeps running well, and continues monitoring wire rod broken string situation in real time.
As it is shown in figure 5, be situation two, abscissa is time t, and vertical coordinate is motor torque values M.In wire production equipment running process, 0 to t0 moment motor torque values M is maintained at above equal to torque threshold, it is judged that wire rod facility is in normal operating phase；In t0 to the t2 moment, motor torque values M is less than torque threshold；After the t2 moment, motor torque values M recovers to more than or equal to torque threshold.Wherein t0 to t2 moment motor torque values M is more than or equal to 1s less than the persistent period of torque threshold, although motor torque values M recovers to more than or equal to torque threshold from the t2 moment, but owing to motor torque values M has reached time threshold less than the persistent period of torque threshold, so broken string monitoring module judges the wire rod generation broken string situation that motor is drawn.
As shown in Figure 6, for situation three, abscissa is time t, and vertical coordinate is motor torque values M.In wire production equipment running process, 0 to t0 moment motor torque values M is maintained at above equal to torque threshold, it is judged that wire rod facility is in normal operating phase；After the t0 moment, motor torque values M is in less than torque threshold all the time, and motor torque values M is less than the persistent period overtime threshold value of torque threshold, so broken string monitoring module judges the wire rod generation broken string situation that motor is drawn.
S5.1, broken string monitoring module judge that the wire rod that motor is drawn does not occurs broken string situation, and wire rod facility keeps running well, and jumps to step S2, continue monitoring wire rod broken string situation in real time.
S6, broken string monitoring module judge that on motor, the wire rod of traction breaks.
S7, broken string monitoring module output halt instruction send to wire rod facility, and wire rod facility receives halt instruction and stops wire production, the motor shutdown of traction wire rod.
Although content of the present utility model has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that the description above is not considered as restriction of the present utility model.After those skilled in the art have read foregoing, multiple amendment of the present utility model and replacement all be will be apparent from.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (2)
1. a wire rod broken wire detection system, it is characterised in that this detecting system comprises:
Torque test module, its circuit connects the motor of traction wire rod, detects and export motor torque values；
Broken string monitoring module, it receives the motor torque values of Torque test module output, when the torque threshold that motor torque values is preset less than broken string monitoring module, then judges that on motor, the wire rod of traction breaks；
Described Torque test module is vector-control frequency converter.
2. wire rod broken wire detection system as claimed in claim 1, it is characterised in that described detecting system also comprises the timer of communication connection broken string monitoring module；Timer record motor torque values is held time less than the torque threshold preset, when holding time equal to or more than the time threshold preset, then judges that on motor, the wire rod of traction breaks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620221342.0U CN205720726U (en) | 2016-03-22 | 2016-03-22 | Wire rod broken wire detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620221342.0U CN205720726U (en) | 2016-03-22 | 2016-03-22 | Wire rod broken wire detection system |
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| Publication Number | Publication Date |
|---|---|
| CN205720726U true CN205720726U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620221342.0U Expired - Fee Related CN205720726U (en) | 2016-03-22 | 2016-03-22 | Wire rod broken wire detection system |
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| CN (1) | CN205720726U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785469A (en) * | 2016-03-22 | 2016-07-20 | 富士电机（中国）有限公司 | Wire breakage detection system and detection method |
| CN108845192A (en) * | 2018-03-13 | 2018-11-20 | 深圳市海浦蒙特科技有限公司 | The disconnected rope detection method of saw of restricting and device |
-
2016
- 2016-03-22 CN CN201620221342.0U patent/CN205720726U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785469A (en) * | 2016-03-22 | 2016-07-20 | 富士电机（中国）有限公司 | Wire breakage detection system and detection method |
| CN108845192A (en) * | 2018-03-13 | 2018-11-20 | 深圳市海浦蒙特科技有限公司 | The disconnected rope detection method of saw of restricting and device |
| CN108845192B (en) * | 2018-03-13 | 2021-06-04 | 深圳市海浦蒙特科技有限公司 | Rope saw rope breaking detection method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20200322 |