Special high-precision meter counting detection system for cantilever type single twister equipment

Abstract

The utility model discloses a special high-precision meter counting detection system for cantilever type single strander equipment, and particularly relates to the field of meter counting equipment, the special high-precision meter counting detection system comprises a single strander host and a control system, the single strander host comprises a shell, the interior of the shell is fixedly connected with a single strander host main shaft, and the single strander host main shaft is fixedly connected with the control system. And the right side of the single-stranding machine main machine main shaft is rotationally connected with a single-stranding machine main machine cantilever through a coupling. The stranded wire is stranded at the front end of the cantilever position of the main machine of the single stranding machine, and the stranded wire at the position forms stable pitch and outer diameter. And meter counting sampling at the position is not influenced by the state of the cable core. The stranded wire does not rotate, so that the meter counting is more accurate at the moment; and meanwhile, the stranded wire is basically stable after entering a host. At the moment, the stranded wires pass through a wire passing guide wheel on a cantilever of the main unit of the single-stranding machine one by one through the tension influence of a take-up system in the main unit of the single-stranding machine; and an incremental encoder is adopted. Therefore, the problem of large meter counting error is solved.

Description

Technical Field

[0001] This utility model relates to the field of meter counting equipment technology, specifically a high-precision meter counting and detection system for cantilever single twisting machine equipment. Background Technology

[0002] Wires and cables are hailed as the "blood vessels and nerves" of modern society and economy, and are widely present in daily life. Among them, the single-strand twisting machine is a device used for twisting high-frequency lines, data lines, electronic wires, core wires, and multi-strand strands of wires and cables such as HDMI, DP, USB, CAT-7, DVI, ATA, and SATA. Single-strand twisting machines are generally divided into three types: vertical single-strand twisting machines, high-speed cantilever single-strand twisting machines, and high-speed suspended frame single-strand twisting machines. The high-speed cantilever single-strand twisting machine consists of a three-head power feeding device, a double-head wrapping device, and the main body of the single-strand twisting machine. The cantilever single-strand twisting machine is suitable for twisting PE or PVC-coated core wires of control cables, communication cables, data cables, coaxial cables, etc., and completing the center wrapping or side wrapping in one operation. It is mainly used for twisting core wires of wires with high precision requirements. Currently, the meter counting method for cantilever single-strand twisting machines mostly uses a single-core meter counting method with a pressure roller at the wire inlet end.

[0003] The existing single-twist meter measuring equipment has the following disadvantages:

[0004] 1. The measured length of the cantilever single twister has a large error compared to the actual production length;

[0005] 2. Due to the different shapes and stress states of the single-strand wires before stranding, the front-end metering method cannot accurately reflect the actual state and length of the stranded cable. The displayed production meters are greatly affected by the actual state of the single-strand wires.

[0006] The reason for the above problem is:

[0007] 1. The accuracy of the metering method using the pressure roller is greatly affected by the fit between the wire core and the pressure roller. When slippage occurs between the wire core and the pressure roller, or when the fit is insufficient, the pulse signal collected by the encoder directly connected to the pressure roller cannot accurately reflect the distance the wire core has traveled.

[0008] 2. The cantilever single-twist machine control system calculates the actual production meters by using the pulse count from the pressure roller encoder and the set pitch to determine the twisting coefficient. However, the twisting coefficient is unstable during actual production, fluctuating within a certain range, resulting in some error in this method. Furthermore, the actual meters are calculated, leading to a larger error compared to direct measurement.

[0009] The production of single-stranded wire uses a non-untwisting method, meaning the single strand is not horizontal before entering the metering roller, exhibiting significant bending and individual shape variations. When the single strand is pulled at an angle or completely bent, the calculated length differs greatly from the actual length. In such cases, the data collected by the encoder cannot reflect the true situation. Therefore, the inventors have provided a high-precision metering detection system specifically for cantilever single-stranded wire machines to solve the problems mentioned in the background art. Utility Model Content

[0010] The purpose of this invention is to provide a high-precision meter counting and detection system specifically for cantilever single-twist machine equipment, thereby solving the problem of large meter counting errors.

[0011] The objective of this utility model can be achieved through the following technical solutions:

[0012] A high-precision meter counting system for cantilever single-twisting machines includes a single-twisting main unit and a control system. The single-twisting main unit includes a housing, inside which the main shaft of the single-twisting main unit is fixedly connected. The right side of the main shaft is rotatably connected to the cantilever of the single-twisting main unit via a coupling. The cantilever of the single-twisting main unit includes a main cantilever and an upper cantilever. A second guide wheel and a first guide wheel are sequentially provided on the outer side of the main cantilever. A first corner guide wheel of the single-twisting main unit is fixedly installed at the corner of the cantilever inside the single-twisting main unit, and a meter counting encoder is fixedly installed inside the first corner guide wheel of the single-twisting main unit.

[0013] As a further improvement of this utility model, the meter encoder is an incremental encoder.

[0014] As a further improvement of this utility model: a wrapping machine is provided on the left side of the single twisting host, and a side diameter meter is provided between the wrapping machine and the single twisting host.

[0015] As a further improvement of this utility model, the lateral diameter meter is connected to the control system using the RS communication MODBUS-RTU protocol.

[0016] As a further improvement of this invention, the incremental encoder is a high-frequency encoder with a pulse count.

[0017] As a further improvement of this utility model: an encoder signal transmission slip ring is fixedly installed on the left side of the main shaft of the single twister.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This high-precision meter counting system, specifically designed for cantilevered single-twisting machines, utilizes a system where the stranded wire is already twisted at the cantilever end of the machine's main unit. At this point, the wire has achieved a stable pitch and outer diameter. Meter counting at this location is unaffected by the wire core's condition. Since the wire is not rotating, meter counting is more accurate. Furthermore, the twisted wire is essentially stable after entering the main unit. The tension from the internal take-up system guides the wire along the guide rollers on the cantilever of the machine, and an incremental encoder is employed. This effectively addresses the issue of large meter counting errors.

[0020] In addition, the high-precision meter measuring system dedicated to this cantilever single twisting machine equipment passes the end of the cable formed inside the single twisting host through the side diameter gauge and fixes it on the rotating roller of the wrapping machine. When the cable enters the wrapping machine, the wrapping machine's tape release device releases the wrapping tape. Under the action of the wrapping machine head, the wrapping tape is tightly wound around the twisted cable according to the set pitch and angle. During the wrapping process, the side diameter gauge accurately measures and monitors the diameter of the cable, thereby achieving the effect of accurate measurement and monitoring of the cable diameter. Attached Figure Description

[0021] Figure 1 A schematic diagram of the internal structure of the main unit of a high-precision meter measuring and detection system specifically designed for cantilever single twisting machines.

[0022] Figure 2 A schematic diagram of the diameter gauge's detection status in a high-precision meter measuring system specifically designed for cantilever single-twist machines;

[0023] Figure 3 A schematic diagram showing the connection between the control system, encoder, and diameter gauge in a high-precision meter measuring system specifically designed for cantilever single-twist machines;

[0024] Figure 4 A schematic diagram of the control system in a high-precision meter measuring system specifically designed for cantilever single-twist machines.

[0025] In the diagram: 1. Side diameter gauge; 2. Single twisting machine main unit; 21. Single twisting machine main unit spindle; 22. Single twisting machine main unit cantilever; 23. Meter encoder; 24. First angle guide wheel of single twisting machine main unit; 25. Encoder signal transmission slip ring; 3. Wrapping machine. Detailed Implementation

[0026] like Figure 1-4As shown, a high-precision meter counting system for cantilever single-twisting machines includes a single-twisting main unit 2 and a control system. The single-twisting main unit 2 includes a housing, inside which a single-twisting main unit spindle 21 is fixedly connected. A single-twisting main unit cantilever 22 is rotatably connected to the right side of the single-twisting main unit spindle 21 via a coupling. The single-twisting main unit cantilever 22 includes a main cantilever and an upper cantilever. A second guide wheel and a first guide wheel are sequentially arranged on the outer side of the main cantilever. A first corner guide wheel 24 is fixedly installed at the corner of the cantilever inside the single-twisting main unit. A meter counting encoder 23 is fixedly installed inside the first corner guide wheel 24. The meter counting encoder 23 transmits pulse signals to the control system, which receives and analyzes the signals and then performs corresponding operations.

[0027] The cantilever-type mainframe stranding process is as follows: Multiple wires to be stranded are released one by one from the feeder. These wires are usually single metal wires or fibers. The feeder maintains a certain tension to keep the wires stable during the release process and prevent loosening or knotting.

[0028] Guiding: The wire is guided by a series of guide rollers to the stranding area of ​​the main machine arm. The guide rollers can precisely control the direction and position of the wire, ensuring that the wire can accurately enter the stranding mechanism and maintain a suitable spacing and arrangement during the stranding process.

[0029] Stranding: The stranding component on the main unit's cantilever is typically a rotatable bow or winch. When the bow or winch begins to rotate, the multiple strands of wire that have entered it will intertwine with each other. The tightness of the stranding and the pitch (the distance between two adjacent stranding points) are determined by both the rotational speed of the stranding component and the feed speed of the wires. Generally speaking, the faster the rotational speed of the stranding component, the smaller the pitch, and the tighter the stranding; conversely, the larger the pitch, the relatively looser the stranding.

[0030] The stranded wire has been twisted at the front end of the single twisting machine main unit cantilever 22, where a stable pitch and outer diameter have been achieved. Metering at this position is unaffected by the state of the wire core itself. Since the stranded wire is not rotating, metering at this point is more accurate. Simultaneously, the twisted wire is essentially stable after entering the main unit. At this time, influenced by the tension of the take-up system inside the single twisting machine main unit 2, the stranded wire passes through the guide rollers on the cantilever 22 of the main unit one by one. Under the action of tension, the stranded wire adheres tightly and fully to the guide rollers. Therefore, slippage of the first corner guide roller 24 of the single twisting machine main unit is virtually nonexistent. Driven by the stranded wire, the corner guide roller rotates in real time, providing accurate feedback on the number of rotations of the stranded wire as it passes through.

[0031] Preferably, an encoder signal transmission slip ring 25 is fixedly installed on the left side of the single-spindle main spindle 21. When the spindle is working, the encoder needs to transmit the measured spindle position, angle, speed, and other signals to the control system. The encoder signal transmission slip ring 25 can establish a reliable electrical connection between the rotating part of the single-spindle main spindle 21 and the fixed control system, so that the encoder signal can be smoothly transmitted from the rotating spindle to the fixed control equipment, avoiding problems such as tangling or breakage of the signal transmission line caused by the spindle rotation, and ensuring the continuity of signal transmission.

[0032] Preferably, the meter counter encoder 23 is an incremental encoder, specifically a high-frequency encoder with 1024 pulses. A sufficient number of pulses per unit revolution of the encoder results in a more accurate reflection of the rotational position. Based on the real-time rotation number of the first angle guide wheel 24 of the single-spindle main unit, the meter counter encoder 23 accurately feeds back the relevant pulse count. The A, B, and Z phases of the incremental encoder are the three main channels of the incremental encoder's output signal, each with different functions and uses. A and B phases: A and B phases are typically orthogonal pulse signals with a 90° phase difference, used to determine the rotation direction. When the spindle rotates clockwise, the A phase signal precedes the B phase; when the spindle rotates counterclockwise, the B phase signal precedes the A phase. By detecting the sequence of the A and B phase signals, the rotation direction can be determined. Therefore, when the production process requires unwinding the thread or repairing the wrapping, the encoder's B phase signal precedes the A phase, and the system collects the corresponding signal to perform the meter reduction operation. Similarly, during normal production, the encoder's A-phase signal precedes the B-phase signal. The system performs the metering operation based on the collected signal, thus enabling the single-spindle machine to respond accordingly to production conditions. Encoder communication and power supply are transmitted through the slip ring at the rear of the spindle, without affecting the operation of the main unit.

[0033] refer to Figure 2 A wrapping machine 3 is provided on the left side of the single twisting host 2, and a side diameter meter 1 is provided between the wrapping machine 3 and the single twisting host 2.

[0034] Furthermore, the lateral diameter gauge 1 is connected to the control system using RS485 communication MODBUS-RTU protocol, achieving digital and precise communication and data transmission.

[0035] In use, the cable end formed inside the twisted main unit 2 is passed through the side diameter gauge 1 and fixed on the rotating roller of the wrapping machine 3. When the cable enters the wrapping machine 3, the tape release device of the wrapping machine 3 releases the wrapping tape. Under the action of the head of the wrapping machine 3, the tape is tightly wound around the twisted cable according to the set pitch and angle. During the wrapping process, the wrapping tension, wrapping speed, and wrapping angle of the wrapping machine 3 need to be adjusted according to the requirements of the cable and the characteristics of the wrapping tape to ensure that the tape is wrapped evenly and smoothly on the cable without wrinkles, overlaps, or excessive gaps. Furthermore, during the wrapping process, the side diameter gauge 1 accurately measures and monitors the diameter of the cable; according to the mathematical formula, where C: circumference of the circle, D: diameter of the circle. The metering program needs to accurately calculate the cable length, requiring accurate acquisition of the total diameter of the metering wheel and the wrapped twisted wire. Combined with the real-time encoder feedback pulse, the meter length is calculated according to the relevant formulas within the program. Therefore, an automatic outer diameter sampling device is installed at the twisted wire pitch position at the front end of the main unit.

[0036] Compared with existing technologies, this device has the following advantages:

[0037] 1. The side diameter meter 1 adopts RS485 communication, which has a high degree of informatization, reliability and real-time performance;

[0038] 2. By accurately and in real-time collecting the actual outer diameter data of the stranded wire using the diameter measuring instrument 1, the calculated length in meters is more precise and closer to reality.

[0039] 3. This solves the problem of meter counting errors and inaccurate meter readings caused by the unstable twisting coefficient when using the original meter counting method with a pressure roller encoder to calculate the actual meter reading based on the number of pulses collected and the twisting coefficient set by the pitch.

[0040] 4. Without changing the existing single-stranded wire production method, this avoids the metering error caused by the inability of a single strand to enter the meter counting wheel horizontally due to large bends and oblique pulling, which was a problem when the pay-off frame used a non-untwisting method.

[0041] The working principle of this invention is as follows: The stranded wire has been twisted at the front end of the cantilever 22 of the single twisting machine main unit, where a stable pitch and outer diameter have been formed. Metering at this position is unaffected by the state of the wire core itself. The stranded wire is not rotating, therefore metering at this point is more accurate. Simultaneously, the twisted wire is essentially stable after entering the main unit. At this time, influenced by the tension of the take-up system inside the single twisting machine main unit 2, the stranded wire passes through the guide rollers on the cantilever 22 of the single twisting machine main unit one by one. Under the action of tension, the stranded wire adheres tightly and fully to the guide rollers. Therefore, slippage of the first corner guide roller 24 of the single twisting machine main unit is virtually eliminated. Driven by the stranded wire, the corner guide roller rotates in real time, providing sufficient feedback on the number of rotations of the stranded wire as it passes through. This achieves the effect of solving the problem of large metering errors.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-precision metering detection system dedicated to a cantilever single-twist machine device, comprising a single-twist main machine (2) and a control system, characterized in that, The single-strand host (2) comprises a shell, the inside of the shell is fixedly connected with a single-strand machine host spindle (21), the right side of the single-strand machine host spindle (21) is rotatably connected with a single-strand machine host cantilever (22) through a shaft coupling; the single-strand machine host cantilever (22) comprises a main cantilever and an upper cantilever, the outside of the main cantilever is sequentially provided with a second guide roller and a first guide roller; a single-strand machine host first corner guide roller (24) is fixedly installed at the corner of the single-strand machine host inner cantilever, and a metering encoder (23) is fixedly installed in the single-strand machine host first corner guide roller (24).

2. The high precision metering detection system dedicated to the cantilever single-twist machine equipment according to claim 1, characterized in that, The metering encoder (23) is an incremental encoder.

3. The high precision metering detection system dedicated to the cantilever single-twist machine equipment according to claim 1, characterized in that, The left side of the single-strand host (2) is provided with a wrapping machine (3), and a side diameter instrument (1) is arranged between the wrapping machine (3) and the single-strand host (2).

4. The high precision metering detection system for the cantilevered single-rope mine hoist equipment according to claim 3, characterized in that, The side diameter instrument (1) is connected with a control system through RS485 communication MODBUS-RTU protocol.

5. The high precision metering detection system for the cantilevered single-rope crane equipment according to claim 2, characterized in that, The incremental encoder selects a high-frequency encoder with 1024 pulse numbers.

6. The high precision metering detection system for a jibbing single winch equipment according to claim 1, characterized in that, An encoder signal transmission collector ring (25) is fixedly installed on the left side of the single-strand machine host spindle (21).

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