Pay-off device for conductor water-blocking strip

Abstract

The invention discloses a pay-off device for a conductor water-blocking strip, belongs to the field of cable equipment, and solves the problems that in the prior art, conductor water-blocking strip coating equipment is low in efficiency, large in size and inconvenient to operate. The middle part of the water-blocking tape disc body is provided with a rotating shaft and is rotationally connected with the base through the rotating shaft; a wire coil supporting column is arranged in the middle of the water-blocking tape disc body and is coaxial with a rotating shaft of the water-blocking tape disc body. A tension control device is arranged on the base and is provided with a friction disc body, and the friction surface of the friction disc body is in friction contact with the surface of the water-blocking tape disc body. The paying-off device for the conductor water-blocking strip is simple in structure, convenient to operate and capable of meeting the wrapping requirements of water-blocking strips of different sizes.

Description

Technical Field

[0001] The present invention relates to a wire pay-off device for a conductor water-blocking tape, belonging to the field of cable equipment. Background Art

[0002] In the application environment of power cables, there are laying methods such as direct burial, cable trench, and tunnel. In various environments, it is inevitable to come into direct contact with water, and sometimes it may be immersed in water, which will cause water to penetrate into the cable interior. Once the water penetrates into the cable insulation layer, as the cable is used for a longer time, the insulation layer will accelerate the generation of water tree phenomenon. When the water tree reaches a certain degree, it will cause the cable to break down, affecting the operation of the power system. At this time, according to user requirements, a water-blocking cable has emerged. Generally, a water-blocking buffer tape is used in the buffer layer of the water-blocking cable, and for more stringent requirements, a water-blocking conductor will be used.

[0003] The traditional method of water-blocking for conductors is to wind a water-blocking tape around the conductor by a wrapping method, but it has disadvantages such as low efficiency, large device, and inconvenient operation. Summary of the Invention

[0004] The present invention provides a wire pay-off device for a conductor water-blocking tape, which has a simple structure and convenient operation, and can adapt to the water-blocking tape coating requirements of different sizes.

[0005] The technical solution adopted by the present invention is a wire pay-off device for a conductor water-blocking tape, including a base and a water-blocking tape support disc body. The middle part of the water-blocking tape support disc body has a rotating shaft and is rotationally connected to the base through the rotating shaft;

[0006] The middle part of the water-blocking tape support disc body has a wire disc support column, and the wire disc support column is coaxially arranged with the rotating shaft of the water-blocking tape support disc body;

[0007] A tension control device is arranged on the base. The tension control device has a friction disc body, and the friction surface of the friction disc body is in frictional contact with the surface of the water-blocking tape support disc body.

[0008] Preferably, for the above-mentioned wire pay-off device for a conductor water-blocking tape, a tape break induction device is arranged on the base, and the induction end of the tape break induction device faces the position where the water-blocking tape disc is installed on the water-blocking tape support disc body.

[0009] Preferably, for the above-mentioned wire pay-off device for a conductor water-blocking tape, two groups of tension control devices are arranged on the base, and the friction disc bodies of the two groups of tension control devices are respectively in frictional contact with the front surface and the rear surface of the water-blocking tape support disc body.

[0010] Preferably, for the above-mentioned wire pay-off device for a conductor water-blocking tape, the middle part of the friction disc body of the tension control device has a second rotating shaft and is rotationally connected to the base through the second rotating shaft;

[0011] The tension control device further includes an elastic band. One end of the elastic band is relatively fixed to the base, and the other end of the elastic band is wound around and attached to the surface of the second rotating shaft of the friction disk body and is relatively fixed to the second rotating shaft of the friction disk body.

[0012] Preferably, for the above-mentioned conductor water-blocking tape unwinding device, a core wire support rod assembly is provided on the base, and the rotating shaft of the water-blocking tape support disk body is located on one side of the water-blocking tape support disk body;

[0013] The core wire support rod assembly includes a vertical rod and a horizontal rod. The horizontal rod is fixed to the end of the vertical rod and is perpendicular to the vertical rod. The vertical rod is fixed to the base, and the horizontal rod is parallel to the rotating shaft of the water-blocking tape support disk body.

[0014] Preferably, for the above-mentioned conductor water-blocking tape unwinding device, one end of the wire reel support column away from the water-blocking tape support disk body has a water-blocking tape disk fixture, and the water-blocking tape disk fixture is threadedly connected to the end of the wire reel support column or connected by bolts.

[0015] The advantages of the present application are as follows: In the actual operation of the conductor water-blocking tape unwinding device of the present application, the conductor is supported in a horizontal state by the horizontal rod. The conductor is located above the horizontal rod, and the water-blocking tape is located below, so that the water-blocking tape and the conductor are arranged side by side to form an up-and-down structure, and the water-blocking tape can longitudinally wrap the outer surface of the conductor during the traveling process, achieving the effect of water-blocking for the conductor. The technical solution of the present application can realize the wrapping of water-blocking tapes for conductors of different specifications and sizes, has a simple structure, is easy to operate, and has a wide range of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view structural schematic diagram of the present application;

[0017] Figure 2 It is a side view structural schematic diagram of the present application;

[0018] Figure 3 It is a front view of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical features of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] As shown in the figure, the present invention is a conductor water-blocking tape unwinding device, which includes a base 1 and a water-blocking tape support disk body 2. The middle of the water-blocking tape support disk body 2 has a rotating shaft and is rotationally connected to the base 1 through the rotating shaft.

[0021] In the present application, the water-blocking tape is used as a water-blocking material and is wrapped on a cable or other objects that need to be waterproof to provide a waterproof function. The water-blocking tape support disk body 2 is used to store and supply the water-blocking tape. The size and thickness specifications of the water-blocking tape support disk body 2 ensure that the water-blocking tape can be stably placed and supplied.

[0022] The middle part of the water-blocking tape support disc body 2 has a wire reel support column 201, and the wire reel support column 201 is coaxially arranged with the rotating shaft of the water-blocking tape support disc body 2. One end of the wire reel support column 201 far away from the water-blocking tape support disc body 2 has a water-blocking tape disc fixture 202, and the water-blocking tape disc fixture 202 is threadedly connected to the end of the wire reel support column 201 or connected by bolts. The water-blocking tape disc fixture 202 is mainly used to limit the position of the water-blocking tape roll and prevent the water-blocking tape roll from detaching from the wire reel support column 201. In actual use, an annular chuck can be arranged at the end of the wire reel support column 201 as the water-blocking tape disc fixture 202, and bolts are used to pass through the side wall of the annular chuck and then threadedly connect to the wire reel support column 201, so as to prevent the water-blocking tape roll from detaching from the wire reel support column 201.

[0023] In another embodiment, an annular chuck is used as the water-blocking tape disc fixture 202. In this embodiment, the inner ring surface of the annular chuck has internal threads, the end of the wire reel support column 201 has external threads, and the annular chuck is threadedly connected to the end of the wire reel support column 201. The helix direction of the thread fit is set to match the rotation direction of the water-blocking tape support disc body 2, and the rotation direction of the water-blocking tape support disc body 2 is the same as the tightening direction of the annular chuck.

[0024] A tension control device is arranged on the base 1. The tension control device has a friction disc body 401, and the friction surface of the friction disc body 401 is in frictional contact with the surface of the water-blocking tape support disc body 2. In this embodiment, two groups of tension control devices can be arranged on the base 1, and the friction disc bodies 401 of the two groups of tension control devices are respectively in frictional contact with the front surface and the rear surface of the water-blocking tape support disc body 2.

[0025] In this embodiment, the middle part of the friction disc body 401 of the tension control device has a second rotating shaft and is rotationally connected to the base 1 through the second rotating shaft. The tension control device further includes an elastic band 402. One end of the elastic band 402 is relatively fixed to the base 1, and the other end of the elastic band 402 is wound and attached to the surface of the second rotating shaft of the friction disc body 401 and is relatively fixed to the second rotating shaft of the friction disc body 401.

[0026] A tape break induction device 3 is arranged on the base 1. The induction end of the tape break induction device 3 faces the position on the water-blocking tape support disc body 2 where the water-blocking tape disc is installed. The tape break induction device 3 has a sensor and a control system to monitor the supply situation of the water-blocking tape. When the water-blocking tape breaks or runs out, the operation of the equipment is automatically stopped to prevent equipment damage and safety accidents.

[0027] The tape break induction device 3 uses a PNP type sensor, model: XS118BLPAL2, with a detection distance of 2 - 8 mm to ensure that the passage of the mark on the water-blocking tape disc can be accurately monitored.

[0028] Install the sensor on the other side of the water-blocking tape support disc 2, maintaining an appropriate distance. The installation position of the tape break sensing device 3 should be stable and reliable to avoid false detection caused by vibration or movement.

[0029] The controller receives the signal of the PNP sensor through the input port. When the sensor detects the mark on the tape reel, it outputs a high-level signal; when it does not detect, it outputs a low-level signal.

[0030] A counter is set inside the controller to record the number of changes in the sensor signal within each cycle. A cycle can be defined as the time required for the water-blocking tape reel to rotate one circle, or set according to actual needs.

[0031] Within each cycle, the controller checks the value of the counter. If the value of the counter remains unchanged, that is, no signal change is detected, it is determined that the water-blocking tape is broken, and the alarm device is immediately triggered.

[0032] A core wire support rod assembly is provided on the base 1. The rotating shaft of the water-blocking tape support disc 2 is located on one side of the water-blocking tape support disc 2. The core wire support rod assembly includes a vertical rod 501 and a horizontal rod 502. The horizontal rod 502 is fixed to the end of the vertical rod 501 and is perpendicular to the vertical rod 501. The vertical rod 501 is fixed to the base 1, and the horizontal rod 502 is parallel to the rotating shaft of the water-blocking tape support disc 2. The core wire support rod assembly supports and drives the water-blocking tape so that it can be smoothly wound around the conductor. At the same time, the suspension shaft structure also has the function of automatically adjusting the tape release tension to adapt to tape reels of different diameters.

[0033] The specific working process of this application is as follows:

[0034] Preparation stage:

[0035] Install the tape reel wound with the water-blocking tape on the water-blocking tape support disc 2 and ensure that the specifications of the tape reel wound with the water-blocking tape meet the requirements.

[0036] By adjusting the tension control device, set an appropriate water-blocking tape tension. Specifically, first restore the elastic band 402 to its free state. At this time, both ends of the elastic band 402 are not stressed. Bind one end of the elastic band 402 to the buckle on the two side walls of the rotating shaft of the friction disc body 401. After tightening the elastic band 402 so that the tension of the elastic band 402 meets the tension requirements of the water-blocking tape, bind the other end of the elastic band 402 to the buckle on the base 1.

[0037] Startup stage:

[0038] Start the device, and the rotating shaft of the water-blocking tape support disc 2 starts to rotate passively. The water-blocking tape on the water-blocking tape support disc 2 is gradually released and wound around the conductor.

[0039] The tension control system adjusts the unwinding tension according to the change in the diameter of the tape reel to ensure that the water-blocking tape is wound tightly and evenly. This tension control system is for manual tension adjustment.

[0040] A spring scale is used to measure the frictional force. As the water-blocking tape is used, the diameter of the tape reel will constantly change. When the diameter of the tape reel gradually decreases, the frictional force between the tape reel and the coiling device will correspondingly decrease. To compensate for this reduction in frictional force caused by the diameter change, the tension is increased by manually adjusting the spring.

[0041] Monitoring and adjustment:

[0042] During the operation of the equipment, it is necessary to regularly check the supply of the water-blocking tape and whether the tension is appropriate.

[0043] If problems such as the breakage of the water-blocking tape or excessive / insufficient tension are found, the equipment should be stopped in time for adjustment or replacement of the tape reel.

[0044] Completion stage:

[0045] When the water-blocking tape is completely wound around the conductor and reaches the predetermined length or thickness, the equipment automatically stops running.

[0046] Cut off the power supply, clean the work site, and prepare for the next operation or maintenance.

[0047] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions, or substitutions made by those of ordinary skill in the art within the scope of the essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A conductor water-blocking tape pay-off device, comprising a base (1) and a water-blocking tape support disc (2), wherein the water-blocking tape support disc (2) has a rotating shaft in the middle and is rotatably connected to the base (1) via the rotating shaft; characterized in that: The water-blocking tape support disc (2) has a wire disc support (201) in the middle, and the wire disc support (201) is coaxially arranged with the rotation axis of the water-blocking tape support disc (2); The base (1) is provided with a tension control device, which comprises a friction disc (401), wherein the friction surface of the friction disc (401) is in frictional contact with the surface of the water-blocking tape support disc (2).

2. The conductor water-blocking tape pay-off device according to claim 1, characterized in that: The base (1) is provided with a broken tape sensing device (3), and the sensing end of the broken tape sensing device (3) faces the position where the water blocking tape disc is installed on the water blocking tape supporting disc body (2).

3. The conductor water-blocking tape pay-off device according to claim 1, characterized in that: The base (1) is provided with two sets of tension control devices, and the friction discs (401) of the two sets of tension control devices are in frictional contact with the front surface and the rear surface of the water-blocking tape support disc (2) respectively.

4. The conductor water-blocking tape pay-off device according to claim 1, characterized in that: The friction disc body (401) of the tension control device has a second rotating shaft in the middle and is rotatably connected to the base (1) via the second rotating shaft; The tension control device further comprises an elastic band (402), one end of the elastic band (402) being fixed relative to the base (1), and the other end of the elastic band (402) being wound around and fitted to the surface of the second rotating shaft of the friction disc body (401) and then fixed relative to the second rotating shaft of the friction disc body (401).

5. The conductor water-blocking tape pay-off device according to claim 1, characterized in that: The base (1) is provided with a core wire support rod assembly, and the rotating shaft of the water-blocking tape support disc (2) is located on one side of the water-blocking tape support disc (2); The core wire support rod assembly comprises a vertical rod (501) and a horizontal rod (502), wherein the horizontal rod (502) is fixed to the end of the vertical rod (501) and is arranged perpendicular to the vertical rod (501), the vertical rod (501) is fixed to the base (1), and the horizontal rod (502) is arranged parallel to the rotation axis of the water blocking tape support disc (2).

6. The conductor water-blocking tape pay-off device according to claim 1, characterized in that: The end of the wire drum support (201) away from the water-blocking tape support drum body (2) is provided with a water-blocking tape drum clamp (202), and the water-blocking tape drum clamp (202) is threadedly connected to the end of the wire drum support (201) or connected by bolts.

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