Fire resistant cable stranding machine

Abstract

This utility model relates to the field of cable stranding technology and provides a fire-resistant cable stranding machine, including a pressure plate. An output block is fixedly connected to the top of the pressure plate. A rotating rod is rotatably connected inside the output block. Two connecting plates are fixedly connected to the outer surface of the rotating rod. A rod sleeve is fixedly connected to the end of each connecting plate away from the rotating rod. A rotating rod is rotatably connected to the inner surface of the rod sleeve. A moving gear is fixedly connected to the end of the rotating rod near the output block. Fixed gear rings are meshed on the outer surfaces of the two moving gears. This utility model features a self-rotating and revolution-rotating stranding structure, ensuring uniform rotation of the single wire during stranding. This avoids single wire deviation or knotting due to uneven tension, controls the consistency of the stranding pitch, ensures a tight structure and uniform outer diameter of each layer of the cable, forms a stable spiral stranding structure, improves the cable's tensile and bending resistance, and prevents single wire breakage or insulation damage due to excessive twisting.

Description

Technical Field

[0001] This utility model relates to the field of cable stranding technology, and in particular to a fire-resistant cable stranding machine. Background Technology

[0002] Cable stranding machines are key equipment in the cable production process. They are mainly used to strand multiple single wires together according to specific rules and structures to form cable cores with certain properties. Through stranding, the single wires are intertwined and compressed to form a tight integral structure, which improves the tensile and compressive strength of the cable, making it less prone to breakage or deformation during laying and use. The regular stranding process ensures that the cable core remains round or other specific shapes, which facilitates subsequent covering with insulation and sheathing. The stranding of multiple single wires can disperse current distribution, reduce skin effect and proximity effect, thereby reducing energy loss and improving the conductivity of the cable.

[0003] However, existing technologies, such as Chinese Publication No. CN222600605U, "A Fire-Resistant Cable Stranding Machine," relate to the field of stranding machine technology, and particularly to a fire-resistant cable stranding machine. Its technical solution includes: a base plate, a stranding machine body, a right side block, a middle block, and a left side block. The stranding machine body is located on the upper surface of the base plate. The upper surface of the base plate is provided with the left side block via a drive assembly. The right side block is located on the base plate, and various middle blocks are provided between the right side block and the left side block. Each of the right side block, middle block, and left side block has symmetrically formed sliding cavities, and the three blocks are connected in series via a connecting assembly. U-shaped rods are installed on each of the right side block, middle block, and left side block. This utility model uses the cooperation between the structures to shield the rotating working arm during the stranding process, and the position of the shielding structure is adjustable, without affecting the normal use of the stranding machine.

[0004] However, this device does not have a self-rotation and revolution twisted wire structure, which cannot make the single wire rotate evenly during the twisting process. This leads to the single wire shifting or knotting due to uneven tension. It cannot control the consistency of the twisting pitch, cannot ensure that the cable layer structure is tight and the outer diameter is uniform, and cannot form a stable spiral twisted structure. This reduces the cable's tensile and bending resistance, leading to single wire breakage or insulation damage due to excessive twisting. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art, such as the inability to make the single wire rotate evenly during the stranding process, resulting in single wire deviation or knotting due to uneven tension, the inability to control the consistency of the stranding pitch, the inability to ensure the tightness of each layer of the cable structure and the uniformity of the outer diameter, the inability to form a stable spiral stranding structure, the reduction of the cable's tensile and bending resistance, and the resulting single wire breakage or insulation damage due to excessive twisting.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fire-resistant cable stranding machine, comprising a pressure plate, an output block fixedly connected to the top of the pressure plate, a main rod rotatably connected inside the output block, two connecting plates fixedly connected to the outer surface of the main rod, a rod sleeve fixedly connected to the end of the connecting plate away from the main rod, a rotating rod rotatably connected to the inner surface of the rod sleeve, a moving gear fixedly connected to the end of the rotating rod near the output block, a fixed gear ring meshing with the outer surfaces of the two moving gears, one side of the fixed gear ring fixedly connected to the outer surface of the output block, and a rotating assembly provided at one end of the main rod. The connecting plate, rod sleeve, and rotating rod that rotate with the main rod will drive the rotating rod to rotate inside the rod sleeve under the meshing action of the moving gear on the fixed gear ring, and revolve around the main rod as the axis.

[0007] In a preferred embodiment, the rotating assembly includes a driven gear, one side of which is fixedly connected to one end of the main rod. The outer surface of the driven gear is meshed with a driving gear, and one side of the driving gear is fixedly connected to a first motor. The outer surface of the first motor is fixedly connected to the inside of the output block. When the first motor is powered on, it drives the driving gear to rotate. Under the meshing action of the driving gear and the driven gear, the driving wheel and the main rod are driven to rotate.

[0008] In a preferred embodiment, the rotating assembly further includes a driven wheel, one side of which is fixedly connected to one end of the main rod. A synchronous belt is driven to the outer surface of the driven wheel, and a driving wheel is driven to the inner surface of the synchronous belt away from the driven wheel. One side of the driving wheel is fixedly connected to the output end of a first motor. The first motor drives the driving wheel to rotate, and under the transmission action of the synchronous belt, it drives the driven wheel and the main rod to rotate.

[0009] In a preferred embodiment, a U-shaped plate is fixedly connected to the end of the rotating rod away from the moving gear, and a wire reel is rotatably connected inside the U-shaped plate, so that the cable wires to be twisted are installed inside the U-shaped plate.

[0010] In a preferred embodiment, a fixed rod is fixedly connected to the end of the main rod away from the driven gear, and a coil is fixedly connected to both ends of the fixed rod, through which the cable wire passes between the fixed roller and the lower pressure roller.

[0011] In a preferred embodiment, a transmission block is fixedly connected to the top of the pressure plate, a fixed roller is rotatably connected inside the transmission block and extends out at one end, an mounting sleeve is fixedly connected to one side of the transmission block, a second motor is fixedly embedded in the inner surface of the mounting sleeve, the output end of the second motor is fixedly connected to one end of the fixed roller, the second motor is fixed to one side of the transmission block by the mounting sleeve, and the second motor will drive the fixed roller to rotate when energized.

[0012] In a preferred embodiment, a U-shaped rod is movably embedded inside the transmission block, and a lower pressure roller is rotatably connected to the outer surface of the U-shaped rod. Under the pressure and friction of the lower pressure roller on the cable and the fixed roller, the lower pressure roller will rotate in the opposite direction and drive the cable to transmit.

[0013] In a preferred embodiment, a force-bearing plate is fixedly sleeved on the outer surface of the U-shaped rod, a spring is fixedly connected to the top of the force-bearing plate, a limit sleeve is fixedly connected to the top of the spring, a fixing plate is fixedly connected to one side of the limit sleeve, and the ends of the two fixing plates away from the limit sleeve are fixedly connected to the outer surface of the transmission block. Under the elastic action of the spring on the force-bearing plate and the limit sleeve, the force-bearing plate, the U-shaped rod and the lower pressure roller will be driven to press down.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] This invention features a device with a self-rotating and revolution-rotating stranded wire structure, which allows the single wire to rotate evenly during the stranding process. This prevents the single wire from shifting or knotting due to uneven tension, controls the consistency of the stranding pitch, ensures that the cable's layers are tightly packed and have a uniform outer diameter, and forms a stable spiral stranded structure. This improves the cable's tensile and bending resistance and prevents single wire breakage or insulation damage caused by excessive twisting. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a fire-resistant cable stranding machine provided for this utility model;

[0017] Figure 2 A side view of a fire-resistant cable stranding machine provided by this utility model;

[0018] Figure 3 A cross-sectional structural schematic diagram of a fire-resistant cable stranding machine provided by this utility model;

[0019] Figure 4 A schematic diagram of the disassembly structure of a fire-resistant cable stranding machine provided by this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of a fire-resistant cable stranding machine provided by this utility model.

[0021] Legend:

[0022] 1. Pressure plate; 2. Output block; 3. Main rod; 4. Connecting plate; 5. Rod sleeve; 6. Rotating rod; 7. Moving gear; 8. Fixed gear ring; 9. Driven gear; 10. Driving gear; 11. First motor; 12. Driven wheel; 13. Synchronous belt; 14. Driving wheel; 15. U-shaped plate; 16. Wire reel; 17. Fixed rod; 18. Output coil; 19. Transmission block; 20. Fixed roller; 21. Mounting sleeve; 22. Second motor; 23. U-shaped rod; 24. Lower pressure roller; 25. Force plate; 26. Spring; 27. Limiting sleeve; 28. Fixed plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1, please refer to Figures 1 to 5This utility model provides a technical solution: a fire-resistant cable stranding machine, including a pressure plate 1, an output block 2 fixedly connected to the top of the pressure plate 1, a main rod 3 rotatably connected inside the output block 2, two connecting plates 4 fixedly connected to the outer surface of the main rod 3, a rod sleeve 5 fixedly connected to the end of the connecting plate 4 away from the main rod 3, a rotating rod 6 rotatably connected to the inner surface of the rod sleeve 5, a moving gear 7 fixedly connected to the end of the rotating rod 6 near the output block 2, a fixed gear ring 8 meshing with the outer surfaces of the two moving gears 7, one side of the fixed gear ring 8 fixedly connected to the outer surface of the output block 2, a rotating assembly provided at one end of the main rod 3, the rotating assembly including a driven gear 9, one side of the driven gear 9 fixedly connected to one end of the main rod 3, a driving gear 10 meshing with the outer surface of the driven gear 9, a first motor 11 fixedly connected to one side of the driving gear 10, the outer surface of the first motor 11 fixedly connected to the inside of the output block 2, and a U-shaped plate fixedly connected to the end of the rotating rod 6 away from the moving gear 7. 15. A coil 16 is rotatably connected inside the U-shaped plate 15. A fixed rod 17 is fixedly connected to the end of the main rod 3 away from the driven gear 9. Both ends of the fixed rod 17 are fixedly connected to the output coil 18. A transmission block 19 is fixedly connected to the top of the pressure plate 1. A fixed roller 20 is rotatably connected inside the transmission block 19 and extends out one end. An installation sleeve 21 is fixedly connected to one side of the transmission block 19. A second motor 22 is fixedly embedded in the inner surface of the installation sleeve 21. The output end of the second motor 22 is fixedly connected to the end of the fixed roller 20. A U-shaped rod 23 is movably embedded inside the transmission block 19. A lower pressure roller 24 is rotatably connected to the outer surface of the U-shaped rod 23. A force plate 25 is fixedly sleeved on the outer surface of the U-shaped rod 23. A spring 26 is fixedly connected to the top of the force plate 25. A limit sleeve 27 is fixedly connected to the top of the spring 26. A fixed plate 28 is fixedly connected to one side of the limit sleeve 27. The ends of the two fixed plates 28 away from the limit sleeve 27 are fixedly connected to the outer surface of the transmission block 19.

[0025] In this embodiment, the cable spool 16 to be twisted is placed inside the U-shaped plate 15, and the cable spool 18 is passed between the fixed roller 20 and the lower pressure roller 24. The cable spool 18 is fixed to one end of the main rod 3 by the fixed rod 17. Then, the external power supply of the first motor 11 is turned on. After the first motor 11 is powered on, it will drive the drive gear 10 to rotate. Under the meshing action of the drive gear 10 and the driven gear 9, the drive wheel 14 and the main rod 3 will rotate. The connecting plate 4, the sleeve 5, and the rotating rod 6, which rotate with the main rod 3, will be driven by the meshing action of the moving gear 7 and the fixed gear ring 8 to rotate the rotating rod 6 inside the sleeve 5 and revolve around the main rod 3 as the axis. Then, the external power supply of the second motor 22 is turned on. The second motor 22 is fixed to one side of the transmission block 19 by the mounting sleeve 21. After the second motor 22 is powered on, it will drive the fixed roller 20 to rotate. At the same time, under the elastic action of the spring 26 on the force plate 25 and the limiting sleeve 27, the force plate 25, the U-shaped rod 23 and the lower pressure roller 24 will be pressed down. The limiting sleeve 27 is connected to the outside of the transmission block 19 by the fixing plate 28. Under the action of the lower pressure roller 24 pressing down and friction on the cable and the fixed roller 20, the lower pressure roller 24 will be driven to rotate in the opposite direction and drive the cable to be transmitted, so that the cable can be twisted and transmitted at the same time. The output block 2 and the transmission block 19 are both fixed above the pressure plate 1.

[0026] Example 2, please refer to Figures 1 to 5 The rotating assembly also includes a driven wheel 12, one side of which is fixedly connected to one end of the main rod 3. The outer surface of the driven wheel 12 is connected to a synchronous belt 13, and the inner surface of the synchronous belt 13 away from the driven wheel 12 is connected to a driving wheel 14. One side of the driving wheel 14 is fixedly connected to the output end of the first motor 11.

[0027] In this embodiment, rotating the main rod 3 can also cause the first motor 11 to drive the active rotating wheel 14 to rotate, which in turn drives the driven rotating wheel 12 and the main rod 3 to rotate under the transmission action of the synchronous belt 13.

[0028] Working principle: First, the cable reel 16 to be twisted is installed inside the U-shaped plate 15, and the cable wire is passed through the exit coil 18 between the fixed roller 20 and the lower pressure roller 24. The exit coil 18 is fixed to one end of the main rod 3 by the fixed rod 17. Then, the external power supply of the first motor 11 is turned on. After the first motor 11 is powered on, it will drive the drive gear 10 to rotate. Under the meshing action of the drive gear 10 and the driven gear 9, the drive wheel 14 and the main rod 3 will rotate. The connecting plate 4, the sleeve 5, and the rotating rod 6, which rotate with the main rod 3, will be driven by the meshing action of the moving gear 7 and the fixed gear ring 8 to rotate the rotating rod 6 inside the sleeve 5 and revolve around the main rod 3 as the axis. Then, the external power supply of the second motor 22 is turned on. The second motor 22 is connected to the mounting sleeve 21. Fixed on one side of the transmission block 19, the second motor 22 drives the fixed roller 20 to rotate after being powered on. At the same time, under the elastic action of the spring 26 on the force plate 25 and the limiting sleeve 27, the force plate 25, the U-shaped rod 23 and the lower pressure roller 24 will be pressed down. The limiting sleeve 27 is connected to the outside of the transmission block 19 through the fixed plate 28. Under the action of the lower pressure roller 24 on the cable and the fixed roller 20, the lower pressure roller 24 will be driven to rotate in the opposite direction and drive the cable to be transmitted, so that the cable can be twisted and transmitted at the same time. The output block 2 and the transmission block 19 are both fixed above the pressure plate 1. The rotation of the main rod 3 can also drive the first motor 11 to drive the active rotating wheel 14 to rotate. Under the transmission action of the synchronous belt 13, the driven rotating wheel 12 and the main rod 3 will be driven to rotate.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fire resistant cable stranding machine comprising a pressure plate (1), characterized in that, An output block (2) is fixedly connected to the top of the pressure plate (1). A main rod (3) is rotatably connected inside the output block (2). Two connecting plates (4) are fixedly connected to the outer surface of the main rod (3). A rod sleeve (5) is fixedly connected to the end of the connecting plate (4) away from the main rod (3). A rotating rod (6) is rotatably connected to the inner surface of the rod sleeve (5). A moving gear (7) is fixedly connected to the end of the rotating rod (6) near the output block (2). A fixed gear ring (8) is meshed on the outer surfaces of the two moving gears (7). One side of the fixed gear ring (8) is fixedly connected to the outer surface of the output block (2). A rotating component is provided at one end of the main rod (3).

2. A fire resistant cable stranding machine according to claim 1, characterised in that: The rotating assembly includes a driven gear (9), one side of which is fixedly connected to one end of the main rod (3). The outer surface of the driven gear (9) is meshed with a driving gear (10). One side of the driving gear (10) is fixedly connected to a first motor (11), and the outer surface of the first motor (11) is fixedly connected to the inside of the output block (2).

3. The fire-resistant cable stranding machine according to claim 1, characterized in that: The rotating assembly also includes a driven wheel (12), one side of which is fixedly connected to one end of the main rod (3). The outer surface of the driven wheel (12) is connected to a synchronous belt (13), and the inner surface of the synchronous belt (13) away from the driven wheel (12) is connected to a driving wheel (14). One side of the driving wheel (14) is fixedly connected to the output end of the first motor (11).

4. The fire-resistant cable stranding machine according to claim 1, characterized in that: The end of the rotating rod (6) away from the moving gear (7) is fixedly connected to a U-shaped plate (15), and a coil (16) is rotatably connected inside the U-shaped plate (15).

5. The fire-resistant cable stranding machine according to claim 4, characterized in that: The main rod (3) is fixedly connected to a fixed rod (17) at the end away from the driven gear (9), and both ends of the fixed rod (17) are fixedly connected to output coils (18).

6. The fire-resistant cable stranding machine according to claim 5, characterized in that: A transmission block (19) is fixedly connected to the top of the pressure plate (1). A fixed roller (20) is rotatably connected inside the transmission block (19) and extends out one end. An installation sleeve (21) is fixedly connected to one side of the transmission block (19). A second motor (22) is fixedly embedded on the inner surface of the installation sleeve (21). The output end of the second motor (22) is fixedly connected to the end of the fixed roller (20) that extends out.

7. The fire-resistant cable stranding machine according to claim 6, characterized in that: The transmission block (19) is internally fitted with a U-shaped rod (23), and the outer surface of the U-shaped rod (23) is rotatably connected to a lower pressure roller (24).

8. The fire-resistant cable stranding machine according to claim 7, characterized in that: A force-bearing plate (25) is fixedly sleeved on the outer surface of the U-shaped rod (23). A spring (26) is fixedly connected to the top of the force-bearing plate (25). A limiting sleeve (27) is fixedly connected to the top of the spring (26). A fixing plate (28) is fixedly connected to one side of the limiting sleeve (27). The ends of the two fixing plates (28) away from the limiting sleeve (27) are fixedly connected to the outer surface of the transmission block (19).

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