CN-121992676-A - Broken wire trigger detection device and method

Abstract

The invention discloses a broken wire triggering detection device and method, comprising a paying-off system, an internal detection unit, a signal receiving system, a control system and an executing mechanism, wherein the paying-off system comprises a paying-off frame, at least one group of broken wire devices are arranged on the paying-off frame, each broken wire device comprises a rotary induction pressing plate and a photoelectric sensing assembly, the internal detection unit is a tubular eddy current detection unit and consists of a non-magnetic metal tube shell and an internal eddy current sensor array, the signal receiving system is used for receiving signals of the photoelectric sensing assembly and the eddy current sensor array and transmitting the signals to the control system, and the control system is in signal connection with the executing mechanism. The invention realizes accurate judgment, quantitative evaluation and accurate positioning of broken wires, can trigger stopping in the moment of broken wires, reduces defective products from the source, reduces production cost, improves production automation level and equipment mobility, and provides data support for quality tracing and process improvement.

Inventors

• DAI BING
• XIA CHENGTANG
• CUI BINGSHENG
• NIU FEI
• CHEN YIJUAN
• XIE CHAOQUN
• WANG ZIPENG
• MENG QINGCHAO
• MA AO
• CHEN TIANHUI

Assignees

• 济宁长龙钢丝绳有限公司
• 齐齐哈尔大学
• 通力轮胎有限公司

Dates

Publication Date

20260508

Application Date

20260212

Claims (10)

1. 1. A broken wire trigger detection device, comprising: The paying-off system, the internal detection unit, the signal receiving system, the control system and the executing mechanism; The paying-off system comprises a paying-off frame, at least one group of wire breaking devices are arranged on the paying-off frame, each wire breaking device comprises a rotary induction pressing plate and a photoelectric sensing assembly, the internal detection unit is a tubular vortex detection unit and is divided into a rotary tubular vortex detection unit or a fixed tubular vortex detection unit, each tubular vortex detection unit is composed of a non-magnetic metal tube shell and an internal vortex sensor array, the signal receiving system is used for receiving signals of the photoelectric sensing assembly and the vortex sensor array and transmitting the signals to the control system, and the control system is in signal connection with an executing mechanism.
2. 2. The wire breakage triggering detection device according to claim 1, wherein the paying-off system further comprises a spool, a steel wire rope is wound on the spool, the rotary induction pressing plates of each group of wire breakage devices are fixed on a penetrating shaft of the paying-off frame and synchronously rotate along with rotation of the spool, and the photoelectric sensing assembly is used for sensing rotation signals of the rotary induction pressing plates.
3. 3. A wire breakage triggering detection means as in claim 1, wherein the non-magnetically conductive metal tube housing of the tubular eddy current detection unit is of tubular configuration, the wire rope passing through the interior of the non-magnetically conductive metal tube housing, and the eddy current sensor array is disposed around the interior of the tube housing for detecting the passing wire rope.
4. 4. The broken wire trigger detection device according to claim 1, wherein the signal receiving system is respectively connected with the photoelectric sensing assembly, the eddy current sensor array and the control system, and the actuating mechanism comprises a traction device and a wire winding device.
5. 5. The wire breakage triggering detection device as recited in claim 1, further comprising a power supply system for supplying power to each of the power consuming components, the power supply system including a micro power generation device for supplying power to the rotary tubular eddy current detection unit and a system main power source for supplying power to the stationary tubular eddy current detection unit.
6. 6. A break trigger detection device as in claim 1 further comprising an encoder, wherein the encoder is in signal communication with the control system for determining a location of a break.
7. 7. A method of detecting a break trigger based on a break trigger detection device according to any one of claims 1-6, comprising: The traction equipment drives the spool on the pay-off rack to rotate, the steel wire rope passes through the tubular vortex detection unit and is connected to the take-up equipment, external detection and internal detection are synchronously started to generate two paths of detection signals, the two paths of detection signals are transmitted to the control system in real time, the control system judges based on the detection signals, and if any detection mode triggers an alarm threshold, the control system immediately executes an alarm and sends out a parking instruction.
8. 8. The method for detecting the wire breakage triggering of the invention as set forth in claim 7, wherein the external detection comprises the steps that when the spool rotates, the rotary induction pressing plate fixed on the shaft rotates synchronously, the photoelectric sensing assembly senses a signal and transmits the signal to the signal receiving system once every half rotation, the signal receiving system transmits the signal to the control system, the control system continuously receives the signal to judge that the wire breakage is normal, when the wire breakage occurs, the spool stops rotating, the rotary induction pressing plate stops moving, the photoelectric sensing assembly stops transmitting the signal, and the control system does not receive the signal within a preset time to judge that the wire breakage is abnormal.
9. 9. The method for detecting wire breakage triggering according to claim 7, wherein the internal detection comprises a wire rope passing through a non-magnetic metal tube shell of a tubular eddy current detection unit at a constant speed, an eddy current sensor array is electrified to generate a high-frequency alternating magnetic field, eddy current signals are induced on the surface of the wire rope, the eddy current sensor array receives the eddy current signals and transmits the eddy current signals to a signal receiving system, the signal receiving system transmits the signals to a control system, the control system receives signals stably, the control system judges that the signals are normal, when the wire rope has defects, the eddy current signals received by the control system are distorted, the length of a steel strand is calculated by combining with an encoder signal, the wire breakage position is positioned, and meanwhile, an alarm is immediately executed and a stop command is sent.
10. 10. A method of detecting a break trigger according to claim 9, wherein the calculating the length of the strand is expressed as: ; The length of the steel strand, namely the length corresponding to the broken wire position, For the rotational speed of the pulling device or the take-up device acquired by the encoder, For the run time of the device from start-up to triggering of a wire break alarm, For the lay length of the steel strand, Is the twisting ratio.

Description

Broken wire trigger detection device and method Technical Field The invention relates to the technical field of steel wire rope production, in particular to a broken wire trigger detection device and method. Background In the field of steel wire rope production, a double twisting machine is core equipment for realizing twisting of steel strands, and steel strand breakage is a key hidden danger affecting product quality in the production process. Once broken wires are not found in time, defective products can flow into subsequent procedures, so that production cost is increased, safety accidents can be caused due to insufficient strength of steel wire ropes, and broken wire detection is an indispensable key link in the production process of the double twisting machine. The broken wire detection technology is a technology for monitoring whether the steel strand has defects of broken wires, broken wires and the like in real time through a specific device and a method in the process of producing the steel strand by a double twisting machine and triggering alarm and stopping operation in time, and the core aims at guaranteeing the production quality of the steel strand, improving the production efficiency and reducing the safety risk. In the prior art, the wire breakage detection of the double twisting machine adopts a single detection mode, wherein part of schemes only realize indirect detection by monitoring the rotation state of a paying-off wheel body, namely a sensor is used for sensing whether the wheel body rotates or not, if the wheel body stops rotating, the wire breakage is judged, and the other part of schemes only directly detect the steel strand body through a single sensor, such as the detection of the surface state of the steel strand by adopting a single-point vortex sensor. In addition, the detection unit of the existing detection device is of a fixed structure, is difficult to adapt to a working scene that the twister inside the double-twisting machine drives the steel strand to rotate by 360 degrees, and lacks a flexible power supply scheme aiming at different installation scenes. In summary, the disadvantages of the prior art include: Firstly, the single detection mode is easy to misjudge and report, only the rotation state of the wheel body cannot be identified, but the wheel body still does not stop, only the detection of the situation that the steel strand body is easy to be interfered by the outside to cause signal misjudgment and the detection reliability is insufficient, secondly, the structural suitability of the detection unit is poor, the detection unit with a fixed structure is difficult to realize omnibearing detection on the steel strand in the rotation state, a detection blind area is easy to form, thirdly, the detection signal transmission and processing are poor in coordination, the efficient linkage of detection, judgment and execution cannot be realized, the stop cannot be triggered in time after the wire breakage occurs, and the defective products are continuously generated. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a broken wire triggering detection device and a method, and the device realizes the accurate judgment, quantitative evaluation and accurate positioning of broken wires through the dual detection modes of the rotation state monitoring of the external wheel body and the vortex detection of the internal steel strand, can trigger stopping at the moment of broken wires, reduces defective products from the source, lowers the production cost, simultaneously improves the production automation level and the equipment mobility, and provides data support for quality tracing and process improvement. In order to achieve the above purpose, the present invention adopts the following technical scheme: in a first aspect, the present invention provides a broken wire trigger detection device, including: The paying-off system, the internal detection unit, the signal receiving system, the control system and the executing mechanism; The paying-off system comprises a paying-off frame, at least one group of wire breaking devices are arranged on the paying-off frame, each wire breaking device comprises a rotary induction pressing plate and a photoelectric sensing assembly, the internal detection unit is a tubular vortex detection unit and is divided into a rotary tubular vortex detection unit or a fixed tubular vortex detection unit, each tubular vortex detection unit is composed of a non-magnetic metal tube shell and an internal vortex sensor array, the signal receiving system is used for receiving signals of the photoelectric sensing assembly and the vortex sensor array and transmitting the signals to the control system, and the control system is in signal connection with an executing mechanism. The paying-off system further comprises a spool, wherein a steel wire rope is wound on the spool, the rotary induction pressing plates of each group