Differential contact type suspension signal acquisition device for rubber cable production and rubber cable

Abstract

The present application relates to cable production technical field, specifically for the differential contact type suspension signal collection device for rubber sheathed cable production and rubber sheathed cable, the collection device includes vulcanization pipeline, it further includes: differential coil installation pipe, it is arranged outside the vulcanization pipeline, it is internally provided with differential coil;Swing lever fixed ring, it is fixed at the suspension point control position inside the vulcanization pipeline;Differential swing lever, one end swing installation is in swing lever fixed ring;Rolling porcelain ring, it is arranged at the other end of differential swing lever;Magnetic bar, it is located at the center hole of differential coil, and the bottom is connected with differential swing lever;Equipment PLC control system.The present application realizes control under traction and host computer, and the upper traction synchronous operation is prevented, and the cable core and pipeline are prevented from being scraped under the steam pressure of pipeline, while solving the problems of existing contact type, such as easy steam leakage, complex installation, non-contact type, such as complex installation, high cost, also improve the mechanical properties and temperature resistance of rubber sheathed cable.

Description

Technical Field

[0001] This invention relates to the field of cable production technology, specifically to a differential contact suspension signal acquisition device for rubber-sheathed cable production and the rubber-sheathed cable itself. Background Technology

[0002] The manufacturing process of rubber-sheathed cables generally includes:

[0003] Rubber undergoes processes such as breaking down and plasticizing, adding dried and sieved rubber compounding agents, followed by mixing, filtering, sheeting, storage, adding vulcanizing agents, and cutting into strips; round copper wire undergoes processes such as bundled wire, twisted wire, insulating layer, extruded insulation, spark test, cabling, extruded sheath, coiling, factory inspection, and warehousing.

[0004] The processed rubber is added to the extrusion insulation process and the extrusion sheath process.

[0005] Currently, the materials used in general-purpose rubber-sheathed cables are thermosetting materials, which have shortcomings in mechanical properties and temperature resistance. In China, the production process typically involves heating and vulcanizing under steam pressure in pipelines. To prevent scratching between the cable and the pipeline during vulcanization, anti-scratch control methods are often used. Common anti-scratch control methods include contact and non-contact signal feedback to achieve synchronous speed control of vertical traction. However, current contact methods suffer from problems such as easy steam leakage and complex installation, thus affecting the processing quality of the rubber-sheathed cables and making it difficult to effectively guarantee the mechanical properties and temperature resistance of the products. Non-contact methods, on the other hand, suffer from complex installation and high cost. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention proposes a differential contact suspension signal acquisition device for rubber-sheathed cable production and a rubber-sheathed cable.

[0007] The technical problem to be solved by this invention is achieved by the following technical solution:

[0008] A differential contact suspension signal acquisition device for rubber-sheathed cable production, including a vulcanizing pipe, and also including:

[0009] A differential coil mounting tube is installed outside the vulcanizing pipe, and a differential coil is installed inside the differential coil mounting tube;

[0010] The swing arm fixing ring is fixed at the suspension point control position inside the vulcanizing pipe;

[0011] A differential rocker arm, with one end oscillating and mounted on a rocker arm retaining ring;

[0012] A rolling ceramic ring is located at the other end of the differential rocker arm. The rolling ceramic ring makes relative rolling contact with the cable core passing through the vulcanization pipe. When the cable core undergoes radial movement, the rolling ceramic ring will correspondingly undergo radial jump.

[0013] The magnetic rod is located at the center hole of the differential coil. The bottom of the magnetic rod is connected to the differential rocker arm. When the rolling ceramic ring undergoes radial runout, it drives the magnetic rod to move back and forth in the differential coil through the differential rocker arm, generating a changing output voltage.

[0014] The equipment's PLC control system is used to collect and receive the generated output voltage, enabling the lower traction to operate synchronously with the main unit and the upper traction.

[0015] As a further improvement of the present invention, a connecting rod is provided on the differential rocker arm, and one end of the connecting rod is connected to a magnetic rod.

[0016] As a further improvement of the present invention, a coil mounting tube cover is provided on the top of the differential coil mounting tube.

[0017] As a further improvement of the present invention, a differential coil frame is provided inside the differential coil mounting tube, and the differential coil is mounted on the differential coil frame.

[0018] As a further improvement of the present invention, the differential coil includes a power supply input coil and an output coil.

[0019] As a further improvement of the present invention, the power supply coil is connected to a low-voltage AC power supply.

[0020] As a further improvement of the present invention, the output coil is connected to an AC / DC voltage conversion board, which is connected to the equipment PLC control system.

[0021] A rubber-sheathed cable is manufactured using the aforementioned differential contact suspension signal acquisition device for rubber-sheathed cable production.

[0022] The beneficial effects of this invention are:

[0023] This invention provides a differential contact-type suspension signal acquisition device for rubber-sheathed cable production. A differential pendulum rod is installed on the pendulum rod fixing ring, and a rolling ceramic ring and a connecting rod are added to the differential pendulum rod. During the cable vulcanization production process, the rolling ceramic ring contacts the rubber sheath, and the connecting rod connects to a magnetic rod. When the cable core undergoes radial movement, the rolling ceramic ring correspondingly undergoes radial jump, and the magnetic rod moves back and forth in the differential coil, generating a changing output voltage. This voltage is acquired and received by the equipment's PLC control system, thereby achieving synchronized operation of the lower traction and the main unit and upper traction. This prevents the cable core from scraping against the pipeline under pipeline steam pressure. While solving the problems of easy steam leakage and complex installation of existing contact-type devices, and the complex installation and high cost of non-contact-type devices, this invention also improves the mechanical properties and temperature resistance of rubber-sheathed cables. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 This is a schematic diagram of the main structure of the differential contact suspension signal acquisition device for rubber-sheathed cable production according to the present invention.

[0026] Figure 2 This is a right-side structural schematic diagram of the differential contact suspension signal acquisition device for rubber-sheathed cable production according to the present invention.

[0027] Figure 3 for Figure 1 A schematic diagram of the interior after the sulfidation pipe has been removed;

[0028] Figure 4 for Figure 3 A schematic diagram of the structure for removing the differential coil;

[0029] Figure 5 This is a schematic diagram of the main structure of the differential coil;

[0030] Figure 6 This is a top view of the differential coil structure.

[0031] Figure 7 This is a schematic diagram of a differential signal feedback circuit;

[0032] Figure 8 This is a schematic diagram of the structure of a rubber-sheathed cable.

[0033] In the diagram: 1. Vulcanizing pipe; 2. Differential coil mounting tube; 3. Swing rod fixing ring; 4. Differential swing rod; 5. Rolling ceramic ring; 6. Connecting rod; 7. Magnetic rod; 8. Coil mounting tube cover; 9. Differential coil frame; 10. Differential coil; 11. Low voltage AC power supply; 12. AC / DC voltage conversion board; 13. Equipment PLC control system; 111. Conductor; 112. Insulation layer; 113. Sheath; 114. Filler. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] like Figures 1 to 7 As shown, a differential contact-type suspended signal acquisition device for rubber-sheathed cable production includes a vulcanizing pipe 1. A differential coil mounting pipe 2 and a coil mounting pipe cap 8 are installed on the outside of the vulcanizing pipe 1. The coil mounting pipe cap 8 is located on top of the differential coil mounting pipe 2, and a gasket is provided between the coil mounting pipe cap 8 and the differential coil mounting pipe 2. The device is sealed by screws to ensure no steam leakage under high temperature and high pressure. The exterior of the vulcanizing pipe 1 and the differential coil mounting pipe 2 are sealed together by welding.

[0036] The vulcanizing pipe 1 is equipped with a swing rod fixing ring 3 inside, which is fixed at the suspension point control position inside the vulcanizing pipe 1. A differential swing rod 4 is provided on the swing rod fixing ring 3. The other end of the differential swing rod 4 has a semi-circular support, and three rolling ceramic rings 5 ​​are installed on the semi-circular support. The three rolling ceramic rings 5 ​​are used to sense the vertical position of the cable core inside the vulcanizing pipe 1. The rolling ceramic rings 5 ​​are in relative rolling contact with the cable core passing through the vulcanizing pipe 1. When the cable core undergoes radial movement, the rolling ceramic rings 5 ​​will correspondingly undergo radial jump.

[0037] A connecting rod 6 is movably connected to the middle position of the differential pendulum 4, and a magnetic rod 7 is movably connected to the other end of the connecting rod 6. In specific applications, one end of the connecting rod 6 is hinged to the middle position of the differential pendulum 4, and the other end of the connecting rod 6 is hinged to the bottom of the magnetic rod 7. When the differential pendulum 4 moves, the angle between the connecting rod 6 and the magnetic rod 7 can change.

[0038] The differential coil mounting tube 2 houses a differential coil frame 9, on which a differential coil 10 is wound. The magnetic rod 7 is located at the center hole of the differential coil 10. When the rolling ceramic ring 5 undergoes radial runout, the differential rocker arm 4 and connecting rod 6 drive the magnetic rod 7 to move back and forth within the differential coil 10, thereby generating a changing output voltage. The differential coil 10 includes a power input coil and an output coil. The power input coil is connected to a low-voltage AC power supply 11, and the output coil is connected to an AC / DC voltage conversion board 12. The AC / DC voltage conversion board 12 is connected to a PLC control system 13.

[0039] Working principle and usage process of this invention:

[0040] In practical use, during the production of rubber-sheathed cables, the cable core passes through the position of the differential contact suspension signal acquisition device used for rubber-sheathed cable production. The differential swing rod 4 is placed above the cable core, and the rolling ceramic ring 5 rolls in relative contact with the cable core. When the cable core moves up and down in the vulcanizing pipe 1, the rolling ceramic ring 5 will jump up and down accordingly. Through the differential swing rod 4 and the connecting rod 6, the magnetic rod 7 moves back and forth linearly in the differential coil 10, so that the power supply coil in the differential coil 10 is connected to the low-voltage AC power supply 11. In this embodiment, the low-voltage AC power supply 11 is a 24V low-voltage AC power supply. A varying 0V-10V output voltage is generated based on the principle of electromagnetic induction of alternating current voltage. This voltage is transmitted to the equipment PLC control system 13 via the AC / DC voltage converter board 12. The PLC control system 13, based on the received 0V-10V output voltage, uses the integer scaling formula in the PLC program: (Output = [(OSH - OSL) * (Input - ISL) / (ISH - ISL)] + OSL), where OSH is the upper limit of the scaled output value range, OSL is the lower limit of the scaled output value range, ISH is the upper limit of the analog input value range, and ISL is the lower limit of the analog input value range. Real-time data calculation is performed, and the calculated output value is added to the value of the lower traction set output control signal to compensate for the lower traction output control signal. This ensures synchronous operation of the lower traction with the main unit and upper traction, preventing the cable core from scraping against the vulcanizing pipe 1 due to pipeline vapor pressure.

[0041] As another embodiment of the present invention, a rubber-sheathed cable is also included, such as... Figure 8 As shown, this rubber-sheathed cable is manufactured using the aforementioned differential contact suspension signal acquisition device for rubber-sheathed cable production. The rubber-sheathed cable includes a conductor 111, an insulation layer 112, a sheath 113, and a filler 114. Three sets of conductors 111 are arranged, each set of conductors 111 having an insulation layer 112 on its exterior. The sheath 113 is disposed on the exterior of the three sets of conductors 111, and a filler 114 is placed between the three sets of conductors 111 and the sheath 113. The sheath 113 in this rubber-sheathed cable is extruded and then vulcanized using the aforementioned device. The rubber-sheathed cable manufactured using this device effectively improves its mechanical properties and temperature resistance.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely prisms of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A differential contact-type suspension signal acquisition device for rubber-sheathed cable production, comprising a vulcanizing pipe (1), characterized in that: Also includes: A differential coil mounting tube (2) is set outside the vulcanizing pipe (1), and a differential coil (10) is set inside the differential coil mounting tube (2). The swing arm fixing ring (3) is fixed at the suspension point control position inside the vulcanizing pipe (1); The differential rocker arm (4) is oscillatingly mounted on the rocker arm fixing ring (3) at one end; A rolling ceramic ring (5) is set at the other end of the differential rocker arm (4). The rolling ceramic ring (5) makes relative rolling contact with the cable core passing through the vulcanizing pipe (1). When the cable core undergoes radial movement, the rolling ceramic ring (5) will correspondingly undergo radial jump. The magnetic rod (7) is located at the center hole of the differential coil (10). The bottom of the magnetic rod (7) is connected to the differential swing rod (4). When the rolling ceramic ring (5) moves radially, the magnetic rod (7) moves back and forth in the differential coil (10) through the differential swing rod (4), generating a changing output voltage. The equipment PLC control system (13) is used to collect and receive the generated output voltage. Based on the 0V-10V output voltage collected and received, the data is calculated in real time using the integer scaling formula in the PLC program. The output control signal of the lower traction is compensated by adding the calculated output value to the value of the lower traction set output control signal, so as to realize the synchronous operation of the lower traction, the main unit, and the upper traction. The integer scaling formula is as follows: (Output = [(OSH - OSL) * (Input - ISL) / (ISH - ISL)] + OSL); In the formula, OSH is the upper limit of the scaled output value range, OSL is the lower limit of the scaled output value range, ISH is the upper limit of the analog input value range, and ISL is the lower limit of the analog input value range.

2. The differential contact suspension signal acquisition device for rubber-sheathed cable production according to claim 1, characterized in that: A connecting rod (6) is provided on the differential pendulum (4), and one end of the connecting rod (6) is connected to the magnetic rod (7).

3. The differential contact suspension signal acquisition device for rubber-sheathed cable production according to claim 1, characterized in that: The top of the differential coil mounting tube (2) is provided with a coil mounting tube cover (8).

4. The differential contact suspension signal acquisition device for rubber-sheathed cable production according to claim 1, characterized in that: The differential coil mounting tube (2) is equipped with a differential coil frame (9), and the differential coil (10) is mounted on the differential coil frame (9).

5. The differential contact suspension signal acquisition device for rubber-sheathed cable production according to claim 1, characterized in that: The differential coil (10) includes a power input coil and an output coil.

6. The differential contact suspension signal acquisition device for rubber-sheathed cable production according to claim 5, characterized in that: The power supply coil is connected to a low-voltage AC power supply (11).

7. The differential contact suspension signal acquisition device for rubber-sheathed cable production according to claim 5, characterized in that: The output coil is connected to an AC / DC voltage conversion board (12), which is connected to the equipment PLC control system (13).

8. A rubber-sheathed cable, characterized in that: It is manufactured and processed using the differential contact type suspension signal acquisition device for rubber-sheathed cable production according to any one of claims 1 to 7.

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