CN114496412A - Processing method of polyolefin insulation horizontal twisted-pair cable for digital communication - Google Patents
Processing method of polyolefin insulation horizontal twisted-pair cable for digital communication Download PDFInfo
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- CN114496412A CN114496412A CN202111642423.XA CN202111642423A CN114496412A CN 114496412 A CN114496412 A CN 114496412A CN 202111642423 A CN202111642423 A CN 202111642423A CN 114496412 A CN114496412 A CN 114496412A
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Abstract
The invention discloses a processing method of a polyolefin insulation horizontal twisted-pair cable for digital communication, which relates to the technical field of communication transmission.
Description
Technical Field
The invention relates to the technical field of communication transmission, in particular to a processing method of a polyolefin insulation horizontal twisted pair cable for digital communication.
Background
In order to improve the flexibility and the integrity of the electric wire and the electric cable, 2 or more than 2 single wires are interwoven according to a specified direction, and the process is called stranding. The whole stranding process includes conductor stranding, cabling, weaving, steel wire armoring and winding, and any one process has problems directly related to whether the cable quality is qualified or not, and the common twisted pair cable is formed by twisting 4 twisted pairs together in a certain density in a counter-clockwise mode and wrapping the twisted pairs with a metal layer or a plastic rubber outer skin. The diameter of the copper wire is 0.4 mm-1 mm. The twist direction is counter clockwise, the lay length is 3.81cm to 14cm, and the difference in twist length between adjacent pairs is about 1.27 cm. The twisted pair's winding density and twist direction, as well as the insulation, directly affect its characteristic impedance, attenuation, and near-end crosstalk; the twisted pair cable can be divided into a shielding twisted pair cable and a non-shielding twisted pair cable by distinguishing whether the twisted pair cable is wrapped by a metal layer or a plastic rubber sheath, wherein the shielding twisted pair cable is the same as the non-shielding twisted pair cable, a core wire is a copper twisted pair, and a sheath layer is a plastic rubber.
When twisting the cable, the applied machinery is a pair twister, which is a device applied to twisting the data cable, so that a plurality of single conductors are twisted into one strand to meet the process requirements of the wire. The pair twister can be generally divided into an automatic high-speed pair twister and a three-pitch high-speed pair twister, wherein the automatic high-speed pair twister is common, and the three-pitch high-speed pair twister obviously increases the yield by more than 30 percent on the basis of a traditional back-twist pair twisting device, and is the best equipment in the twisting process of 5-type/6-type/7-type local area network data cables.
And current pair twister is at the pair twist in-process, need to carry out the pair twist to the cable conductor of different footpaths, different materials, and different footpaths, the tension cardinal number diverse that the cable conductor of different materials can bear, and the guide wheel group action that can bear under the different tension cardinal numbers and the surface tension data that brings are also different, probably make the cable conductor take place to drag deformation or fracture at the pair twist in-process under the too big condition of tension, then make the pair twister take place the wire jumper accident easily under the condition of tension undersize, all can cause the damage to the cable conductor of current pair twist in-process, very easily influence the normal work of cable conductor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a processing method of a polyolefin insulation horizontal twisted pair cable for digital communication, which comprises the following steps:
step 1: acquiring cable data, and solving the tension base number of the current twisted-pair cable;
step 2: acquiring the distance between the pressing die and the distributing board, and calculating to obtain ideal tension data of the cable according to the current tension base number;
step 2: according to the ideal tension data of the cable and the load of the guide wheel set, the ideal rotating speed of the guide wheel set is obtained according to an FFT algorithm;
and 4, step 4: the rotation speed of the guide wheel set is adjusted to the ideal rotation speed.
FFT is an efficient algorithm for DFT, called fast fourier transform, i.e. a general name of an efficient and fast calculation method for calculating Discrete Fourier Transform (DFT) by using a computer, called FFT for short. The method can be used for calculating vector convolution (polynomial multiplication and the like), and the ideal rotating speed of the guide wheel set is solved by adopting an FFT algorithm in consideration of the fact that the load of the guide wheel set is correspondingly changed along with the change of the cable quality in the twisting process.
Preferably, the cable data includes: tensile strength value of cable material, cable quality and cable diameter.
The tensile strength value of the cable material can be obtained by searching in a material tensile strength meter, or the type of the material is recorded in advance, and the tensile strength value of the material is recorded in advance, so that an operator can directly input the type of the material to traverse when the cable material is used, and the quality of the cable and the diameter of the cable are recorded by the operator.
Preferably, the step 2 further includes the following steps.
Step 21: acquiring the distance between the pressing die and the distributing board, judging whether the absolute value of the distance is in the range of a distance threshold value, if so, calculating ideal tension data of the cable, and if not, entering step 22;
step 22: and adjusting the position of the distributing board and returning to the step 21.
Preferably, the distance threshold value of the pressing die and the line distributing plate is 20-35 cm.
The distance between the pressing die and the distributing board is acquired because the distance between the pressing die and the distributing board is too close or too far, which affects the calculation of ideal tension data, an infrared distance measuring sensor can be adopted when the distance value between the pressing die and the distributing board is acquired, the infrared distance measuring sensor is a sensing device, is a measuring system taking infrared rays as a medium, has wide measuring range and short response time, emits a beam of infrared light during working, forms a reflecting process after irradiating an object, receives a signal after reflecting the sensor, and then processes and receives data of the time difference between emission and reception. The distance of the object is calculated after being processed by the signal processor. This can be used not only for natural surfaces but also for adding reflectors. The measuring distance is far, the frequency response is very high, and the method is suitable for the industrial environment of the pair twister.
Preferably, in step 2, the tension base number calculation formula of the twisted pair cable is as follows:
k is the tensile strength value of the cable material, a is the cable mass, and l is the cable diameter.
Preferably, the tension base number calculation formula of the twisted pair cable is as follows:
f is the tension base number of the twisted pair cable, eta is the distance between the pressing die and the distributing board, and M is the current environmental humidity value.
A polyolefin insulation level pair-twisted cable processing system for digital communication comprises the following contents:
the control processing module: the system is used for issuing control instructions to each module in the system and assisting the transmission of data among the modules;
the guide wheel set control module: the rotating speed value is used for controlling the guide wheel set;
a data acquisition module: the device is used for acquiring the rotating speed of the guide wheel set and the distance value between the pressing die and the distributing plate;
a data entry module: the cable data information is input;
a data processing module: the data input module is used for inputting data to the data acquisition module;
the guide wheel set control module, the data acquisition module, the data input module and the data processing module are all connected with the control processing module.
Preferably, the device further comprises a judging module, wherein the judging module is used for judging whether the rotating speed of the guide wheel set is an ideal rotating speed and judging whether the distance value between the pressing die and the distributing plate is in a threshold range, and the judging module is connected with the control processing module.
A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor when executing the computer program implements the steps of the method for processing polyolefin insulation level twisted pair cable for digital communication according to any one of claims 1 to 6.
A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the steps of the method for processing polyolefin insulation level twisted pair cable for digital communication according to any one of claims 1 to 6.
The invention has the beneficial effects that:
through gathering cable conductor data and the distance data between moulding-die and the nozzle plate on the pair twister, calculate the ideal tension data of cable conductor, according to the fast load and the rotational speed of current direction wheel, try to get the ideal rotational speed of direction wheelset according to the FFT algorithm for the direction wheelset can in time be adjusted to the scope that the cable conductor keeps ideal tension data, avoid taking place deformation because cable conductor tension is too big or because the cable conductor takes place the accident of wire jumper because tension undersize.
Drawings
FIG. 1 is a flow chart of a method for processing a polyolefin insulated horizontal twisted pair cable for digital communications;
FIG. 2 is a schematic diagram of a polyolefin insulation level twisted pair cable processing system for digital communications;
fig. 3 is a flow chart showing the adjustment of the distance between the die and the distributing plate in the processing method of the polyolefin insulation horizontal twisted pair cable for digital communication.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention. It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
As shown in fig. 1, a method for processing a polyolefin insulation horizontal twisted pair cable for digital communication comprises the following steps:
step 1: acquiring cable data, and solving the tension base number of the current twisted-pair cable;
step 2: acquiring the distance between the pressing die and the distributing board, and calculating to obtain ideal tension data of the cable according to the current tension base number;
step 2: according to the ideal tension data of the cable and the load of the guide wheel set, the ideal rotating speed of the guide wheel set is obtained according to an FFT algorithm;
and 4, step 4: and regulating the rotating speed of the guide wheel set to the ideal rotating speed.
The pair twister includes: the front support and the rear support are arranged on the base, and are respectively connected with a front rotating shaft and a rear rotating shaft which are coaxially distributed and provided with a central through hole in a bearing manner; a pair of bow belts which bulge outwards and are symmetrically distributed are connected between the front rotating shaft and the rear rotating shaft, a cradle which is connected between the front rotating shaft and the rear rotating shaft through a bearing is arranged between the pair of bow belts, and a plurality of lead guide wheels are symmetrically and uniformly distributed on the inner side surfaces of the pair of bow belts; the rear end of the adjacent cradle is provided with a wire spool and a driving mechanism for driving the wire spool to rotate, the rear end of the adjacent front rotating shaft and the front end of the adjacent rear rotating shaft are respectively provided with a guide wheel set, the guide wheel set comprises a front guide wheel and a rear guide wheel, a wire inlet hole communicated with the central through hole of the front rotating shaft is formed in the front rotating shaft and in the front side of the front guide wheel, and a wire outlet hole communicated with the central through hole of the rear rotating shaft is formed in the rear rotating shaft and in the front side of the rear guide wheel. The front end of the cradle is provided with a synchronous belt wheel in transmission connection with the front rotary shaft, and the rotary shaft of the synchronous belt wheel is in transmission connection with a traction wheel for traction of a stranded wire; one side of the traction wheel is provided with a guide wheel set used for conveying the stranded wires output from the rear end of the central through hole of the front rotating shaft to the wire spool. A wire arranging mechanism suitable for axial reciprocating displacement of the wire spool and uniformly distributing stranded wires on the wire spool is arranged between the guide wheel set and the wire spool, and the wire arranging mechanism comprises a pressing die and a wire distributing plate which are horizontally arranged. The front rotating shaft and the rear rotating shaft synchronously rotate to drive the bow belt to synchronously rotate, at least two cables enter from the rear end of the central through hole of the rear rotating shaft under the traction of the traction wheel, are output from the wire outlet hole of the rear rotating shaft and sequentially enter the wire inlet hole of the front rotating shaft after passing through the rear guide wheel, each lead guide wheel on the bow belt on one side and the front guide wheel, are output from the rear end of the central through hole of the front rotating shaft, then sequentially pass through the traction wheel and the guide wheel combined wire arranging mechanism arranged on one side of the traction wheel, and are wound on a wire winding disc in a rotating state. A lifting platform which is suitable for moving up and down and is used for loading and unloading the wire spool is arranged under the wire spool, and a lifting control mechanism of the lifting platform is realized by adopting a motor screw transmission mechanism.
FFT is an efficient algorithm for DFT, called fast fourier transform, i.e. a general name of an efficient and fast calculation method for calculating Discrete Fourier Transform (DFT) by using a computer, called FFT for short. The method can be used for calculating vector convolution (polynomial multiplication and the like), and the ideal rotating speed of the guide wheel set is solved by adopting an FFT algorithm in consideration of the fact that the load of the guide wheel set is correspondingly changed along with the change of the cable quality in the twisting process.
Further, the cabling data includes: tensile strength value of cable material, cable quality and cable diameter.
The tensile strength value of the cable material can be obtained by searching in a material tensile strength meter, or the type of the material is recorded in advance, and the tensile strength value of the material is recorded in advance, so that an operator can directly input the type of the material to traverse when the cable material is used, and the quality of the cable and the diameter of the cable are recorded by the operator.
As shown in fig. 3, step 2 further includes the following steps.
Step 21: acquiring the distance between the pressing die and the distributing board, judging whether the absolute value of the distance is in the range of a distance threshold value, if so, calculating ideal tension data of the cable, and if not, entering step 22;
step 22: and adjusting the position of the distributing board and returning to the step 21.
Furthermore, the distance threshold value of the pressing die and the wire distributing plate ranges from 20 cm to 35 cm.
The distance between the pressing die and the distributing board is collected because the distance between the pressing die and the distributing board is too close or too far, which can affect the calculation of ideal tension data, an infrared distance measuring sensor can be adopted when the distance value between the pressing die and the distributing board is collected, the infrared distance measuring sensor is a sensing device, is a measuring system using infrared rays as a medium, has wide measuring range and short response time, emits a beam of infrared light during working, forms a reflecting process after irradiating an object, receives signals after reflecting to the sensor, and then receives data of the time difference between the emission and the reception by processing. The distance of the object is calculated after being processed by the signal processor. This can be used not only for natural surfaces but also for adding reflectors. The measuring distance is far, the frequency response is very high, and the method is suitable for the industrial environment of the pair twister.
When the distance between the pressing die and the distributing plate is adjusted, an electric push rod or a driving motor can be used for controlling.
Further, in step 2, the tension base number of the twisted pair cable is calculated by the following formula:
k is the tensile strength value of the cable material, a is the cable mass, and l is the cable diameter.
Further, the tension base number of the twisted pair cable is calculated by the following formula:
f is the tension base number of the twisted pair cable, eta is the distance between the pressing die and the distributing board, and M is the current environmental humidity value.
As shown in fig. 2, a polyolefin insulation horizontal twisted pair cable processing system for digital communication comprises the following contents:
the control processing module: the system is used for issuing control instructions to each module in the system and assisting the transmission of data among the modules;
the guide wheel set control module: the rotating speed value is used for controlling the guide wheel set;
a data acquisition module: the device is used for acquiring the rotating speed of the guide wheel set and the distance value between the pressing die and the distributing plate;
a data entry module: the cable data information is input;
a data processing module: the data input module is used for inputting data to the data acquisition module;
the guide wheel set control module, the data acquisition module, the data input module and the data processing module are all connected with the control processing module.
The data acquisition module can acquire the rotating speed of the guide wheel set through the rotating speed sensor, the distance value between the pressing die and the distributing board is acquired through the infrared distance measuring sensor, the acquired signal is an analog signal, an analog-to-digital converter can be added to convert the analog signal for a part of control processing modules which are not provided with the analog-to-digital converter, and the analog signal can be filtered and shaped before the analog signal is converted, so that the analog signal is smoother and more accurate, and the phenomenon that the acquired analog signal has large jump degree and processing burden is caused on the data processing module is avoided; the guide wheel set control module can adopt a driving motor and a driving motor controller to control and process the action of the guide wheel set, and can adopt a frequency conversion controller to accurately adjust the action of the driving motor so as to enable the control to be more accurate.
As shown in fig. 2, further, the device further includes a judging module, where the judging module is configured to judge whether the rotation speed of the guide wheel set is an ideal rotation speed, and judge whether the distance value between the pressing die and the distributing board is within a threshold range, and the judging module is connected to the control processing module.
A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor when executing the computer program implements the steps of the method for processing polyolefin insulation level twisted pair cable for digital communication according to any one of claims 1 to 6.
A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the steps of the method for processing polyolefin insulation level twisted pair cable for digital communication according to any one of claims 1 to 6.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments in the above-described embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition. In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. A processing method of a polyolefin insulation horizontal twisted-pair cable for digital communication is characterized by comprising the following steps:
step 1: acquiring cable data, and solving the tension base number of the current twisted-pair cable;
step 2: acquiring the distance between the pressing die and the distributing board, and calculating to obtain ideal tension data of the cable according to the current tension base number;
step 2: according to the ideal tension data of the cable and the load of the guide wheel set, the ideal rotating speed of the guide wheel set is obtained according to an FFT algorithm;
and 4, step 4: the rotation speed of the guide wheel set is adjusted to the ideal rotation speed.
2. The method of claim 1, wherein the cable line data comprises: tensile strength value of cable material, cable quality and cable diameter.
3. The method as claimed in claim 1, wherein the step 2 further comprises the following steps.
Step 21: acquiring the distance between the pressing die and the distributing board, judging whether the absolute value of the distance is in the range of a distance threshold value, if so, calculating ideal tension data of the cable, and if not, entering step 22;
step 22: and adjusting the position of the distributing board and returning to the step 21.
4. The method as claimed in claim 3, wherein the threshold distance between the die and the splitter plate is in the range of 20-35 cm.
5. The method as claimed in claim 1, wherein in the step 2, the tension base number of the twisted pair cable is calculated by the following formula:
k is the tensile strength value of the cable material, a is the cable mass, and l is the cable diameter.
6. The method as claimed in claim 5, wherein the tension base number of the twisted pair cable is calculated by the following formula:
f is the tension base number of the twisted pair cable, eta is the distance between the pressing die and the distributing board, and M is the current environmental humidity value.
7. A polyolefin insulation horizontal twisted-pair cable processing system for digital communication, characterized in that the polyolefin insulation horizontal twisted-pair cable processing method for digital communication according to claims 1-6 is included, and comprises the following contents:
the control processing module: the system is used for issuing control instructions to each module in the system and assisting the transmission of data among the modules;
the guide wheel set control module: the rotating speed value is used for controlling the guide wheel set;
a data acquisition module: the device is used for acquiring the rotating speed of the guide wheel set and the distance value between the pressing die and the distributing plate;
a data entry module: the cable data information is input;
a data processing module: the data input module is used for inputting data to the data acquisition module;
the guide wheel set control module, the data acquisition module, the data input module and the data processing module are all connected with the control processing module.
8. The system of claim 7, further comprising a determining module, wherein the determining module is used for determining whether the rotation speed of the guide wheel set is an ideal rotation speed and determining whether the distance between the pressing die and the wire separating plate is in a threshold range, and the determining module is connected to the control processing module.
9. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor when executing the computer program implements the steps of the method for processing polyolefin insulation level twisted pair cable for digital communication according to any one of claims 1 to 6.
10. A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the steps of the method for processing polyolefin insulation level twisted pair cable for digital communication according to any one of claims 1 to 6.
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| KR20100126871A (en) * | 2009-05-25 | 2010-12-03 | (주)티엠씨 | A machine for twisting a ground wire and threads together |
| CN102982911A (en) * | 2012-11-22 | 2013-03-20 | 安徽天星光纤通信设备有限公司 | Implementation method for pair twisting of cables |
| CN111210952A (en) * | 2020-02-16 | 2020-05-29 | 上海强奕机电科技有限公司 | Single-wire traction equipment of digital cable back-twist pair twister |
| CN214672004U (en) * | 2021-03-31 | 2021-11-09 | 圣安电缆有限公司 | Conductor stranding tension control device for graphene shielded cable |
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2021
- 2021-12-29 CN CN202111642423.XA patent/CN114496412B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100126871A (en) * | 2009-05-25 | 2010-12-03 | (주)티엠씨 | A machine for twisting a ground wire and threads together |
| CN102982911A (en) * | 2012-11-22 | 2013-03-20 | 安徽天星光纤通信设备有限公司 | Implementation method for pair twisting of cables |
| CN111210952A (en) * | 2020-02-16 | 2020-05-29 | 上海强奕机电科技有限公司 | Single-wire traction equipment of digital cable back-twist pair twister |
| CN214672004U (en) * | 2021-03-31 | 2021-11-09 | 圣安电缆有限公司 | Conductor stranding tension control device for graphene shielded cable |
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