A manufacturing method and a forming device for a rat-bite protection tube

Abstract

The present application discloses a method for manufacturing a rat-bite-proof protection tube and a forming device, which includes Step 1: wrapping an insulating layer on the surface of a stainless steel strip to form a protection strip required for manufacturing the rat-bite-proof protection tube; Step 2: conveying the protection strip manufactured in Step 1 towards the forming device through a conveying device; Step 3: using a traction device to send the protection strip between the outer mold and the mold core of the forming device, so that the protection strip coming out between the outer mold and the mold core is in a continuous spiral shape. When in use, the present application can manufacture a rat-bite-proof protection tube that can be bent arbitrarily along the line, has a wide application range, high wear resistance and a long service life through a mold.

Description

Technical Field

[0001] The present invention relates to the field of anti-rat bite protection tubes, and particularly to a manufacturing method and a forming device for anti-rat bite protection tubes. Background Art

[0002] During the power construction process, in order to reduce the damage to electric wires by rats and the like, anti-rat bite protection tubes are often sleeved on some electric wires. The anti-rat bite protection tubes on the market at present are either made of plastic materials or made of metal materials.

[0003] During the actual use process, the inventor found that the service life of traditional plastic protection tubes is generally short, and they cannot be flexibly changed in direction along with the change of the line. While the process of metal protection tubes is generally more complex and difficult, resulting in higher costs and being not conducive to large-scale use. With the continuous development of the power system, the protection requirements for power lines are continuously improved, and there is an urgent need for an anti-rat bite protection tube with better performance. Summary of the Invention

[0004] The purpose of this application is to provide a manufacturing method and a forming device for anti-rat bite protection tubes, which can produce anti-rat bite protection tubes that can be bent arbitrarily along with the line, have a wide application range, high wear resistance and a long service life through a mold.

[0005] A manufacturing method for an anti-rat bite protection tube provided by this application adopts the following technical scheme:

[0006] A manufacturing method for an anti-rat bite protection tube includes:

[0007] Step 1: Wrap an insulating layer on the surface of a stainless steel strip to form a protection strip required for manufacturing the anti-rat bite protection tube.

[0008] Step 2: Convey the protection strip manufactured in Step 1 towards the forming device through a conveying device.

[0009] Step 3: Use a traction device to send the protection strip between the outer mold and the mold core of the forming device, so that the protection strip coming out between the outer mold and the mold core is in a continuous spiral shape.

[0010] By adopting the above technical scheme, using stainless steel wrapped with an insulating layer as the raw material of the protection strip can not only prevent rat bites and has good wear resistance, but also the formed protection strip has a certain flexibility and can be flexibly changed in direction along with the change of the line, so as to effectively replace the traditional anti-rat bite protection tube and improve the quality of the anti-rat bite protection tube.

[0011] The present application further provides a forming device for a rat-proof protection tube, comprising: a mounting plate detachably mounted on a fixed plate; an arc plate mounted at one end of the mounting plate and having a predetermined angle with the extending direction of the mounting plate; and a die core shaft mounted in the arc plate and parallel to the arc plate, with a predetermined gap for the protection belt to pass through between the die core shaft and the inner side of the arc plate.

[0012] By adopting the above technical solution, the arc plate and the die core shaft are cooperated with each other, so that the conveyed protection belt can be bent, and the protection belt is formed into a spiral protection tube around the outer side of the die core shaft within the predetermined gap. This structural design is ingenious and greatly improves the production efficiency of the spiral protection tube.

[0013] The present application is further provided with: a driving wheel and a pressure wheel for clamping and conveying the protection belt are mounted on the fixed plate, and a driving member for driving the driving wheel to rotate is mounted on one side of the fixed plate away from the pressure wheel.

[0014] By adopting the above technical solution, when the driving member is started, the driving wheel can be driven to rotate. The driving wheel and the pressure wheel can clamp the protection belt. As the driving wheel rotates, the pressure wheel can cooperate with the driving wheel to clamp and convey the protection belt, which can not only press the protection belt to make the protection belt compacted, but also save labor costs.

[0015] The present application is further provided with: an annular groove adapted to the protection belt is annularly arranged on the outer peripheral side of the driving wheel, and the groove depth of the annular groove is less than the thickness of the protection belt.

[0016] By adopting the above technical solution, the depth of the annular groove is limited, so that while the annular groove restricts the protection belt, it will not affect the extrusion effect of the pressure wheel on the protection belt.

[0017] The present application is further provided with: a limiting component for limiting and guiding the protection belt is mounted on one side of the fixed plate close to the conveying end of the protection belt.

[0018] By adopting the above technical solution, the provided limiting component can further limit the protection belt, reducing the situation that the protection belt shakes and affects the accurate conveying.

[0019] The present application is further provided with: a positioning plate is mounted on one side of the mounting plate close to the arc plate, one side of the arc plate is hinged on one side of the mounting plate close to the limiting component, a receiving cavity is arranged in the positioning plate, a movable plate adapted to the receiving cavity is mounted on one side of the arc plate close to the mounting plate, and an adjusting component for restricting the two to adjust the angle between the arc plate and the mounting plate is arranged between the positioning plate and the movable plate.

[0020] By adopting the above technical solution, the provided adjusting component can adjust the position of the movable plate within the positioning plate according to actual needs, thereby conveniently adjusting the angle between the arc-shaped plate and the mounting plate to adapt to the spacing between each small section of the spiral protection tube, and then increasing the applicable range of this application.

[0021] This application is further provided with: an arc-shaped notch provided on the positioning plate with the hinge point between the arc-shaped plate and the mounting plate as the center of the circle; an adjusting rod with one end fixed on the movable plate and the other end passing through the arc-shaped notch; and a limiting ring threadedly connected to the outer end of the adjusting rod.

[0022] By adopting the above technical solution, when it is necessary to adjust the position of the movable plate within the positioning plate, the limiting ring can be loosened so that the adjusting rod can slide within the arc-shaped notch, thereby driving the movable plate to rotate a predetermined angle around the hinge point between the arc-shaped plate and the mounting plate. After adjusting the position of the movable plate, rotate the limiting ring in the reverse direction to limit the movable plate at a predetermined position within the positioning plate. This structure is simple to operate and can well realize the adjustment of the angle between the arc-shaped plate and the mounting plate.

[0023] This application is further provided with: a slide bar parallel to the mounting plate is installed on the side of the mounting plate away from the arc-shaped plate. A sliding sleeve is slidably sleeved on the slide bar. A connecting rod is hinged to the sliding sleeve. The end of the connecting rod away from the sliding sleeve is hinged to the outer side of the arc-shaped plate. Symmetric annular blocks for clamping the sliding sleeve are threadedly connected to the slide bar.

[0024] By adopting the above technical solution, the provided connecting rod can support the arc-shaped plate to increase the stability of the entire arc-shaped plate. When it is necessary to adjust the angle between the arc-shaped plate and the mounting plate, the annular block can be rotated to release the restriction on the sliding sleeve, so that the sliding sleeve can be slid to drive the connecting rod to move to adapt to different angles between the arc-shaped plate and the mounting plate. After adjusting the position of the arc-shaped plate, the annular block can be rotated and abutted against the sliding sleeve to fix the connecting rod. This structure is simple to operate and can further improve the stability of the arc-shaped plate.

[0025] This application is further provided with: an arc-shaped limiting block for restricting the coiled protection belt is detachably installed on the side of the arc-shaped plate away from the mounting plate.

[0026] By adopting the above technical solution, the provided arc-shaped limiting block can restrict the protection belt, enabling the protection belt to be spirally formed along a predetermined direction, reducing the situation where the protection belt deviates from the predetermined direction, and effectively improving the forming quality of the protection belt.

[0027] This application is further provided with: a plurality of mounting holes for installing the mounting plate and arranged linearly are formed on the fixing plate.

[0028] By adopting the above technical solution, multiple installation holes are provided. The mounting plate can be installed into the corresponding installation holes according to the actual situation, so as to adjust the distance between the mounting plate and the main wheel.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] By using the stainless steel strip wrapped with an insulating layer as the raw material for making the protection tube, it can not only be bent arbitrarily along with the line, has a large application range, but also can effectively prevent rat bites, has high wear resistance, and can be used for a long time without embrittlement;

[0031] By setting a forming device, batch production of the protection tube can be realized, and the provided adjusting component can adjust the angle between the arc plate and the mounting plate according to the actual situation, so as to change the gap between each small section of the formed spiral protection tube to adapt to more actual needs. Description of the Drawings

[0032] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0033] Figure 2 is the structural schematic diagram of the adjusting component in the embodiment of the present application;

[0034] Figure 3 is the overall structural schematic diagram of the limiting component in the embodiment of the present application;

[0035] Figure 4 is the position schematic diagram of the limiting nut and the servo motor in the embodiment of the present application.

[0036] Description of the reference numerals: 1, fixed plate; 10, mounting plate; 11, arc plate; 12, die core shaft; 21, driving wheel; 210, annular groove; 22, pressure wheel; 3, positioning plate; 31, movable plate; 32, arc notch; 33, adjusting rod; 34, limiting ring; 4, sliding rod; 41, sliding sleeve; 42, connecting rod; 43, annular block; 5, arc limiting block; 6, turntable; 61, guiding rod; 62, servo motor; 7, rotating rod; 70, limiting nut; 71, conveying cylinder; 72, annular block; 8, telescopic rod; 81, clamping roller; 82, screw rod; 83, compression spring. Detailed Description of the Embodiment

[0037] The following further details the present application with reference to the accompanying drawings.

[0038] The embodiment of the present application discloses a method for manufacturing a rat-proof protection tube, including the following steps:

[0039] Step 1: Use manual labor or tools to wrap at least one layer of insulating layer on the surface of the stainless steel strip to form the protective strip required for manufacturing the rat-bite-proof protection tube. In this embodiment, the insulating layer is made of PPC material with good electrical properties and high-frequency insulation performance;

[0040] Step 2: After the required protective strip is made in Step 1, install and debug the forming device, then place the protective strip on the conveying device, and use the conveying device and the traction device to cooperate with each other to convey the protective strip in the direction of the forming device;

[0041] Step 3: During the conveying process, keep the end of the protective strip passing through the gap between the outer die and the die core of the forming device, so that the protective strip coming out between the outer die and the die core is in a continuous spiral shape, thus forming the required rat-bite-proof protection tube.

[0042] In this embodiment, it also lies in providing a forming device for the rat-bite-proof protection tube, as Figure 1 and Figure 2 shown, including: a fixing plate 1, and a mounting plate 10 installed on the fixing plate 1 by bolts or screws. The mounting plate 10 is in a strip shape as a whole. An arc-shaped plate 11 is installed at one end of the mounting plate 10, and a die core shaft 12 is installed at one end inside the arc-shaped plate 11. The extending direction of the die core shaft 12 is consistent with the extending direction of the arc-shaped plate 11. It should be noted that a predetermined gap is provided between the die core shaft 12 and the inside of the arc-shaped plate 11, and this predetermined gap allows the protective strip to pass through normally.

[0043] Among them, a driving wheel 21 and a pressure wheel 22 are installed on the fixing plate 1. The driving wheel 21 and the pressure wheel 22 are used to clamp and convey the protective strip. A driving member is installed on the side of the fixing plate 1 away from the pressure wheel 22. The driving member can adopt a relatively common servo motor, and the output shaft of the servo motor is connected to the wheel core of the driving wheel 21.

[0044] When the conveying device conveys the protective strip towards the fixing plate 1, the protective strip will pass through the gap between the driving wheel 21 and the pressure wheel 22. Start the servo motor to make the driving wheel 21 and the pressure wheel 22 clamp and convey the protective strip, and the end of the protective strip will extend into from the gap between the arc-shaped plate 11 and the die core shaft 12. In addition, it should be noted that in order to ensure that the formed rat-bite-proof protection tube is in a spiral shape, a predetermined angle is formed between the arc-shaped plate 11 and the mounting plate 10 in this embodiment. That is to say, the extending direction of the die core shaft 12 needs to be in a non-perpendicular state to the conveying direction of the protective strip. The advantage of such a design is that the protective strip penetrating between the arc-shaped plate 11 and the die core shaft 12 can be conveyed out in a continuous spiral shape along the outside of the die core shaft 12, so that the required rat-bite-proof protection tube can be formed. The rat-bite-proof protection tube made by this application can not only flexibly change the direction with the change of the line, but also be durable.

[0045] In addition, in order to reduce the situation where the forming quality is poor due to the shaking of the protective belt during transportation, an annular groove 210 adapted to the protective belt is provided on the outer peripheral side of the driving wheel 21. In order to ensure that the pressure wheel 22 can press well against the protective belt, therefore, the groove depth of the annular groove 210 in this embodiment is less than the thickness of the protective belt.

[0046] In this embodiment, in order to adapt to the actual situation and adjust the distance between each segment of the spiral protective tube, a positioning plate 3 is installed on one side of the mounting plate 10 close to the arc plate 11. A receiving cavity is provided in the positioning plate 3. The end of the arc plate 11 is rotatably connected to one side of the mounting plate 10, and a movable plate 31 is installed on the side of the arc plate 11 close to the mounting plate 10. The movable plate 31 can movably extend into the receiving cavity. In addition, an adjusting assembly is provided between the positioning plate 3 and the movable plate 31. The adjusting assembly can adjust the position of the movable plate 31 in the receiving cavity, so as to adjust the included angle between the arc plate 11 and the mounting plate 10.

[0047] Among them, the adjusting assembly includes: an arc-shaped notch 32 provided on the positioning plate 3 with the hinge point of the arc plate 11 and the mounting plate 10 as the center of the circle. An adjusting rod 33 is fixed on the movable plate 31. The end of the adjusting rod 33 away from the movable plate 31 passes through the arc-shaped notch 32, and a limit ring 34 is threadedly connected to the end of the adjusting rod 33 passing through the arc-shaped notch 32.

[0048] When it is necessary to adjust the included angle between the arc plate 11 and the mounting plate 10 to adapt to the actual needs, the limit ring 34 can be rotated to release the restriction on the adjusting rod 33, so that the movable plate 31 can rotate around the hinge point between the mounting plate 10 and the arc plate 11 in the receiving cavity of the positioning plate 3. When the position of the movable plate 31 is adjusted, the limit ring 34 can be rotated in the reverse direction, so that the limit ring 34 presses against the outside of the positioning plate 3, thereby firmly fixing the movable plate 31 and keeping the arc plate 11 in a predetermined position. In this way, the included angle between the direction of the protective belt conveyed to the forming device and the extending direction of the die core shaft 12 can be adjusted to form different spiral anti-rat bite protective tubes.

[0049] In order to improve the stability of the arc plate 11 and reduce the situation of its shaking, a sliding rod 4 is installed on the side of the mounting plate 10 away from the arc plate 11. The sliding rod 4 is parallel to the mounting plate 10. A sliding sleeve 41 is slidably sleeved on the sliding rod 4. A connecting rod 42 is rotatably connected to the sliding sleeve 41. The end of the connecting rod 42 away from the sliding sleeve 41 is hinged to the outside of the arc plate 11. In addition, two annular blocks 43 are threadedly sleeved on the sliding rod 4, and the annular blocks 43 are located on both sides of the sliding sleeve 41.

[0050] When it is necessary to adjust the angle between the arc-shaped plate 11 and the mounting plate 10, the restriction on the sliding sleeve 41 can be released by rotating the annular block 43, so that the sliding sleeve 41 can slide on the sliding rod 4. During the sliding process of the sliding sleeve 41, the connecting rod 42 will be driven to move. When the position of the arc-shaped plate 11 is adjusted, then rotate the two annular blocks 43 so that the two annular blocks 43 firmly clamp the sliding sleeve 41.

[0051] An arc-shaped limiting block 5 is installed on the side of the arc-shaped plate 11 away from the mounting plate 10 by screws. The arc-shaped limiting block 5 bends towards the die core shaft 12. When the protective belt is conveyed along the outside of the die core shaft 12, the provided arc-shaped limiting block 5 can limit the protective belt, reduce the deviation of the protective belt from the predetermined output direction, and thus improve the forming quality of the anti-rat-bite protection tube.

[0052] In addition, in order to adjust the distance between the mounting plate 10 and the pressure wheel 22 according to the actual situation, in this embodiment, a plurality of mounting holes are provided on the fixing plate 1. The mounting holes are linearly arranged along the extending direction of the mounting plate 10. When the position of the mounting plate 10 is determined, the mounting plate 10 can be directly installed in the corresponding mounting hole through bolts. The operation is simple and it is easy to replace and disassemble.

[0053] As Figure 3 and Figure 4 shown, in order to stably convey the protective belt so that the protective belt is conveyed between the driving wheel 21 and the pressure wheel 22 along a predetermined direction, a limiting component is provided on one side of the fixing plate 1 close to the conveying end of the protective belt.

[0054] Among them, the limiting component includes: a turntable 6 installed on the fixing plate 1. The turntable 6 is parallel to the fixing plate 1. A plurality of guide rods 61 are installed on the turntable 6. The guide rods 6 are perpendicular to the turntable 6. And a servo motor 62 is installed on one side of the fixing plate 1 where the servo motor is installed. The output shaft of the servo motor 62 is fixed to the center of the turntable 6. By turning on the servo motor 62, the turntable 6 can be driven to rotate. When the turntable 6 rotates, it can drive a plurality of guide rods 61 to rotate as well, so that the guide rods 61 can support and press the protective belt, which can not only guide the protective belt, but also pre-flatten the coiled protective belt, making the protective belt quickly change from a bent shape to a straight shape, which is beneficial to subsequent processing.

[0055] In addition, the limiting component further includes: two sliding openings formed in the fixed plate 1 in the vertical direction. The two sliding openings are arranged in parallel, and a rotating rod 7 is slidably installed in each of the sliding openings. A limiting nut 70 is threadedly connected to one end of the rotating rod 7 passing through the sliding opening. The limiting nut 70 and the servo motor 62 are on the same side of the fixed plate 1. In addition, a conveying cylinder 71 is rotatably installed at one end of the rotating rod 7 away from the limiting nut 70. An annular block 72 is threadedly sleeved on the end of the rotating rod 7 away from the fixed plate 1, and the annular block 72 is parallel to the fixed plate 1.

[0056] When the protective belt is conveyed from the guide rod 61, it will pass between the two conveying cylinders 71. At this time, the two conveying cylinders 71 can further convey the protective belt. At the same time, when the thickness of the protective belt changes, the height of the corresponding rotating rod 7 can also be adjusted by rotating the limiting nut 70, so as to better convey the protective belt. In addition, it should be noted that the length of the conveying cylinder 71 in this embodiment is shorter than the width of the protective belt. When the width of the protective belt changes, the annular block 72 can also be rotated. Together with the fixed plate 1, the protective belt can be clamped and limited, further improving the stability of the protective belt conveying.

[0057] In addition, in order to reduce the situation that the protective belt shakes or sways during the conveying process, two telescopic rods 8 are installed on the fixed plate 1, and a clamping roller 81 for clamping the protective belt is installed at one end of each of the two telescopic rods 8 away from the fixed plate 1. The end of the telescopic rod 8 away from the clamping roller 81 is threadedly installed on the fixed plate 1 through a screw rod 82. Among them, a compression spring 83 is movably sleeved on the telescopic rod 8. One end of the compression spring 83 abuts against the clamping roller 81 and the other end abuts against the screw rod 82.

[0058] When the protective belt is conveyed between the two conveying cylinders 71, at this time, the screw rod 82 can be rotated to adjust the telescopic rod 8 to a vertical state, so that both telescopic rods 8 are in a vertical state. Under the elastic restoring force of the compression spring 83, the two clamping rollers 81 will abut against the upper and lower sides of the protective belt. Such a setting can buffer and shock-absorb the upper and lower sides of the protective belt, thereby effectively reducing the situation that the protective belt shakes and affects the conveying direction.

[0059] In this embodiment, the added limiting component can both straighten and guide the protective belt through the guide rod 61, enabling the protective belt to pass between the conveying cylinders 71. During the process of conveying the protective belt between the two conveying cylinders 71, the misaligned distance between the two conveying cylinders 71 can also be adjusted by rotating the limiting nut 70, thereby better conveying the protective belt. At the same time, the limiting ring 72 can also be rotated to adapt to protective belts of different widths. When the protective belt is conveyed between the two clamping rollers 81, the elastic force of the compression spring 83 can be utilized to buffer and protect the protective belt, enabling the protective belt to be stably conveyed between the driving wheel 21 and the pressure wheel 22.

[0060] The above are all the preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A device for forming a rat-bite protection tube, characterized in that, Including: A mounting plate (10) detachably mounted on a fixing plate (1); An arc-shaped plate (11) mounted at one end of the mounting plate (10) and having a predetermined included angle with the extending direction of the mounting plate (10); and a die core shaft (12) mounted inside the arc-shaped plate (11) and parallel to the arc-shaped plate (11), with a predetermined gap for the protective tape to pass through between the die core shaft (12) and the inner side of the arc-shaped plate (11); A driving wheel (21) and a pressure wheel (22) for clamping and conveying the protective tape are mounted on the fixing plate (1), and a driving member for driving the driving wheel (21) to rotate is mounted on the side of the fixing plate (1) away from the pressure wheel (22); A positioning plate (3) is mounted on the side of the mounting plate (10) close to the arc-shaped plate (11). One side of the arc-shaped plate (11) is hinged to the side of the mounting plate (10) close to the limiting component. A receiving cavity is provided inside the positioning plate (3). A movable plate (31) adapted to the receiving cavity is mounted on the side of the arc-shaped plate (11) close to the mounting plate (10). An adjusting component for restricting the two to adjust the included angle between the arc-shaped plate (11) and the mounting plate (10) is provided between the positioning plate (3) and the movable plate (31). The adjusting component includes: an arc-shaped notch (32) provided on the positioning plate (3) with the hinge point of the arc-shaped plate (11) and the mounting plate (10) as the center; an adjusting rod (33) with one end fixed on the movable plate (31) and the other end passing out of the arc-shaped notch (32); and a limiting ring (34) threadedly connected to the outer end of the adjusting rod (33); A slide bar (4) parallel to the mounting plate (10) is mounted on the side of the mounting plate (10) away from the arc-shaped plate (11). A slide sleeve (41) is slidably sleeved on the slide bar (4). A connecting rod (42) is hinged to the slide sleeve (41). One end of the connecting rod (42) away from the slide sleeve (41) is hinged to the outer side of the arc-shaped plate (11). Symmetric annular blocks (43) for clamping the slide sleeve (41) are threadedly connected to the slide bar (4).

2. The forming device for a rat-bite prevention protection tube according to claim 1, characterized in that, An annular groove (210) adapted to the protective tape is provided on the outer peripheral side of the driving wheel (21), and the groove depth of the annular groove (210) is less than the thickness of the protective tape.

3. A rat-bite prevention protection tube forming device according to claim 1, characterized in that, A limiting component for limiting and guiding the protective tape is mounted on the side of the fixing plate (1) close to the conveying end of the protective tape.

4. A rat-bite prevention protection tube forming device according to claim 1, characterized in that, An arc-shaped limiting block (5) for restricting the coiled protective tape is detachably mounted on the side of the arc-shaped plate (11) away from the mounting plate (10).

5. The forming device of a rat-bite protection tube according to claim 1, characterized in that, A plurality of mounting holes for mounting the mounting plate (10) and arranged linearly are provided on the fixing plate (1).

6. A manufacturing method of a rat-bite protection tube, characterized in that, Using the anti-rat-bite protection tube forming device according to any one of claims 1 to 5 above to manufacture an anti-rat-bite protection tube, the method for manufacturing the anti-rat-bite protection tube includes the following steps: Step 1: Wrap an insulating layer on the surface of a stainless steel tape to form a protective tape required for manufacturing the anti-rat-bite protection tube; Step 2: Convey the protective tape manufactured in Step 1 towards the forming device through a conveying device; Step 3: Use a traction device to feed the protective belt between the outer mold and the mold core of the forming device, so that the protective belt coming out between the outer mold and the mold core is in a continuous spiral shape.

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