A stranding device for low voltage cables

Abstract

The utility model discloses a kind of stranding devices of low-voltage cable, including base, the top of base is sequentially provided with pay-off assembly, wire twisting assembly, moving assembly, wire pressing assembly and take-up assembly;Moving assembly includes driving motor, screw rod and two support plates, two support plates are vertically in the middle of base top, and there is spacing between the two, screw rod is horizontally arranged in two support plates, and its both ends are rotatably connected with two support plates through bearing respectively, driving motor is arranged at the top of base, and its output shaft is drivingly connected with screw rod, to change the spacing between stranding assembly and pay-off assembly, stranding assembly is arranged between two support plates, and the bottom of stranding assembly is threadedly connected with screw rod.By moving assembly driving stranding assembly moves horizontally on base, so as to change the spacing between stranding assembly and wire twisting assembly, and then adapt to the fine adjustment of spacing required in stranding process of single wire of different size or material, to improve the quality of single wire stranding into core.

Description

Technical Field

[0001] This utility model relates to the field of cable stranding technology, and in particular to a stranding device for low-voltage cables. Background Technology

[0002] Cable stranding is a core step in cable manufacturing, and its process directly affects the electrical performance, mechanical strength, and production efficiency of the conductor. In cable production, stranding machines are commonly used to twist several single wires of the same or different diameters together in a specific direction and according to certain rules, forming a single strand. Before stranding, multiple sleeves with single coils wound around them are placed on multiple rotating shafts on the surface of the stranding machine. These shafts then rotate together, carrying the sleeves, to guide the wires. Stranding machines are widely used in the stranding of various soft and hard conductors. They are mainly used to twist multiple single conductor cables into a single strand to meet certain wire processing requirements, providing raw materials for further processing. Stranding devices are frequently used in cable manufacturing. Stranding devices refer to twisting several single wires of the same or different diameters together in a specific direction and according to certain rules to form a single strand. Furthermore, stranded wire cores are much more flexible and have better bending performance than single wire cores of the same diameter.

[0003] When stranding single wires of different materials or outer diameters, the spacing between the pay-off reel and the stranding mechanism may need to vary. For example, one cable stranding machine (CN214043245U) has a structure that does not allow for changing the spacing between the pay-off reel and the stranding mechanism. This is detrimental to cable stranding, affecting the efficiency of cable stranding and the quality of the stranded wire core. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a stranding device for low-voltage cables.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a stranding device for low-voltage cables, including a base, and the top of the base is sequentially provided with a wire feeding assembly, a wire twisting assembly, a moving assembly, a wire pressing assembly, and a wire take-up assembly.

[0007] The moving component includes a drive motor, a lead screw, and two support plates. The two support plates are vertically positioned at the center of the top of the base, with a gap between them. The lead screw is horizontally positioned inside the two support plates, and its two ends are rotatably connected to the two support plates respectively through bearings. A stranding assembly is provided between the two support plates, and the bottom of the stranding assembly is threadedly connected to the lead screw. The drive motor is located at the top of the base, and its output shaft is drivenly connected to the lead screw to change the gap between the stranding assembly and the wire feeding assembly.

[0008] As a preferred embodiment of the present invention, the moving component further includes at least one optical axis, which is disposed between the two support plates and its two ends are respectively fixedly connected to the two support plates and located on one side of the lead screw. The bottom of the stranded wire assembly is slidably connected to the lead screw.

[0009] As a preferred technical solution of this utility model, the stranded wire assembly includes a first fixed bracket and a stranded wire head. The bottom of the first fixed bracket is threadedly connected to the lead screw and slidably connected to the optical axis. The stranded wire head is disposed inside the first fixed bracket.

[0010] As a preferred embodiment of this utility model, the top of the base has grooves on both sides, and the two grooves are respectively located on both sides of the movable component. The bottom of the first fixed bracket is provided with wheel frames at both ends, and each wheel frame is provided with a guide wheel, and each guide wheel is located in the corresponding groove.

[0011] As a preferred technical solution of this utility model, the wire feeding assembly includes a first rotating bracket and a wire feeding reel. The first rotating bracket is located at the feeding end of the top of the bracket, and the wire feeding reel is rotatably located inside the first rotating bracket.

[0012] The yarn twisting assembly includes a second rotating bracket and a yarn twisting reel. The second rotating bracket is located at the top of the bracket and between the first rotating bracket and the yarn twisting assembly. The yarn twisting reel is rotatably disposed inside the second rotating bracket. Both the yarn feeding reel and the yarn twisting reel have yarn passing holes arranged in a circular array, and the two are connected by multiple connecting rods.

[0013] As a preferred embodiment of the present invention, the wire pressing assembly includes a second fixed bracket and a wire pressing unit. The second fixed bracket is disposed between the stranded wire assembly and the take-up wire assembly, and the wire pressing unit is fixed to the top of the second fixed bracket.

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

[0015] The moving component drives the stranding assembly to move horizontally on the base, thereby changing the spacing between the stranding assembly and the twisting assembly. This allows for fine-tuning of the spacing required during the stranding process for single wires of different sizes or materials, thus improving the quality of the stranded wire core. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of the present invention;

[0020] In the diagram: 1. Base; 2. Wire feeding assembly; 21. First rotating bracket; 22. Wire feeding reel; 23. Connecting rod; 3. Wire twisting assembly; 31. Second rotating bracket; 32. Wire twisting reel; 4. Moving assembly; 41. Drive motor; 42. Lead screw; 43. Support plate; 44. Optical axis; 5. Wire pressing assembly; 51. Second fixed bracket; 52. Wire pressing unit; 6. Wire take-up assembly; 7. Wire stranding assembly; 71. First fixed bracket; 72. Wire stranding head; 73. Wheel frame; 74. Guide wheel; 8. Groove. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] In the attached diagram, all identical reference numerals refer to the same components.

[0023] like Figure 1-3 As shown, this utility model provides a stranding device for low-voltage cables, including a base 1, and the top of the base 1 is sequentially provided with a wire feeding assembly 2, a wire twisting assembly 3, a moving assembly 4, a wire pressing assembly 5, and a wire take-up assembly 6.

[0024] The moving component 4 includes a drive motor 41, a lead screw 42, and two support plates 43. The two support plates 43 are vertically located at the center of the top of the base 1, with a gap between them. The lead screw 42 is horizontally located inside the two support plates 43, and its two ends are rotatably connected to the two support plates 43 respectively through bearings. A stranding assembly 7 is provided between the two support plates 43. The bottom of the stranding assembly 7 is threadedly connected to the lead screw 42. The drive motor 41 is located at the top of the base 1, and its output shaft is drivenly connected to the lead screw 42 to change the gap between the stranding assembly 7 and the wire feeding assembly 2.

[0025] In this embodiment, the spacing between the stranding assembly 7 and the twisting assembly 3 is first changed by the moving assembly 4 according to the size and material of the stranded single wires, so as to adapt to the spacing required by the corresponding single wires during stranding, thereby improving the quality of the stranded wire core.

[0026] The drive motor 41 is a geared motor using existing technology. Its output shaft is coaxially connected to the lead screw 42 to drive the lead screw 42 to rotate. During the rotation of the lead screw 42, the stranded wire assembly 7, which is threadedly connected to it, moves along the direction of the lead screw 42 between the two support plates 43, thereby adjusting the gap between the stranded wire assembly 7 and the twisting wire assembly 3.

[0027] Then, multiple different single wires pass through the wire feeding assembly 2 and the wire twisting assembly 3 in sequence, and converge in the wire twisting assembly 7. As the wire feeding assembly 2 and the wire twisting assembly 3 rotate, the multiple single wires are twisted together in the wire twisting assembly 7 to form a wire core.

[0028] After the wire core is pressed by the wire pressing assembly 5, the wire core is wound onto the bobbin by the take-up assembly 6, which uses existing technology.

[0029] The structure of the take-up assembly 6 using the existing technology can be that a shaft is horizontally set on the frame, a cylinder is sleeved on the shaft, and one end of the wire core is connected to the cylinder; the shaft on the frame is driven to rotate by an external drive unit (not shown in the figure, usually a motor), thereby driving the cylinder to rotate and winding the wire core onto the cylinder.

[0030] Furthermore, the moving component 4 also includes at least one optical axis 44, which is disposed between two support plates 43 and its two ends are fixedly connected to the two support plates 43 respectively, and is located on one side of the lead screw 42. The bottom of the stranded wire assembly 7 is slidably connected to the lead screw 42.

[0031] In this embodiment, at least one optical axis 44 is connected to the bottom of the stranded wire assembly 7, which makes the stranded wire assembly 7 more stable during movement.

[0032] Furthermore, the stranded wire assembly 7 includes a first fixed bracket 71 and a stranded wire head 72. The bottom of the first fixed bracket 71 is threadedly connected to the lead screw 42 and slidably connected to the optical axis 44. The stranded wire head 72 is disposed inside the first fixed bracket 71.

[0033] In this embodiment, the stranded wire head 72 is embedded in the first fixed bracket 71, and multiple single wires converge at the stranded wire hole in the center of the stranded wire head 72 and are twisted together in the stranded wire hole, so that the twisted wire core is obtained after passing through the stranded wire hole.

[0034] Furthermore, the top of the base 1 has two grooves 8 on both sides, and the two grooves 8 are located on both sides of the movable component 4. The bottom of the first fixed bracket 71 is provided with wheel frames 73 at both ends, and each wheel frame 73 is provided with a guide wheel 74, and each guide wheel 74 is located in the corresponding groove 8.

[0035] In this embodiment, the wheel frames 73 at both ends of the first fixed bracket 71 are used to install guide wheels. The guide wheels 74 can roll in the corresponding grooves 8, which makes the stranded wire assembly 7 more stable during movement.

[0036] Furthermore, the wire feeding assembly 2 includes a first rotating bracket 21 and a wire feeding reel 22. The first rotating bracket 21 is located at the feeding end of the top of the bracket, and the wire feeding reel 22 is rotatably located inside the first rotating bracket 21.

[0037] The yarn twisting assembly 3 includes a second rotating bracket 31 and a yarn twisting disc 32. The second rotating bracket 31 is located at the top of the bracket and between the first rotating bracket 21 and the stranding assembly 7. The yarn twisting disc 32 is rotatably located inside the second rotating bracket 31. Both the pay-off disc 22 and the yarn twisting disc 32 have yarn-passing holes arranged in a circular array, and the two are connected by multiple connecting rods 23.

[0038] In this embodiment, multiple single wires pass through the wire holes on the wire feeding reel 22 and the wire twisting reel 32 in sequence, and converge and twist together in the twisting hole of the wire twisting assembly 7.

[0039] The pay-off reel 22 is driven by an external drive unit (not shown in the figure, usually a motor), and drives the twisting reel 32 to rotate via the connecting rod 23.

[0040] Furthermore, the wire pressing assembly 5 includes a second fixing bracket 51 and a wire pressing unit 52. The second fixing bracket 51 is disposed between the stranding assembly 7 and the take-up assembly 6, and the wire pressing unit 52 is fixed to the top of the second fixing bracket 51.

[0041] In this embodiment, the twisted wire core is pressed by the wire pressing unit 52 using the prior art on the second fixed bracket 51, and then wound up after pressing;

[0042] The wire pressing unit 52 usually consists of two parts, upper and lower. The two parts are combined to form a pressing hole in the middle for pressing the wire core. The upper and lower parts are usually fixed by bolts, and the degree of pressing of the wire core is adjusted by the tightening of the bolts.

[0043] This utility model is a stranding device for low-voltage cables. By driving the stranding assembly to move horizontally on the base through a moving component, the spacing between the stranding assembly and the twisting assembly is changed, thereby adapting to the fine adjustment of the spacing required by single wires of different sizes or materials during the stranding process, so as to improve the quality of single wire stranding into a core.

[0044] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stranding device for low-voltage cables, characterized in that, Includes a base (1), and the top of the base (1) is sequentially provided with a wire feeding assembly (2), a wire twisting assembly (3), a moving assembly (4), a wire pressing assembly (5), and a wire take-up assembly (6); The moving component (4) includes a drive motor (41), a lead screw (42), and two support plates (43). The two support plates (43) are vertically disposed at the middle of the top of the base (1) and there is a gap between them. The lead screw (42) is horizontally disposed inside the two support plates (43) and its two ends are rotatably connected to the two support plates (43) respectively through bearings. A stranded wire assembly (7) is provided between the two support plates (43). The bottom of the stranded wire assembly (7) is threadedly connected to the lead screw (42). The drive motor (41) is disposed at the top of the base (1) and its output shaft is drivenly connected to the lead screw (42) to change the gap between the stranded wire assembly (7) and the wire feeding assembly (2).

2. The stranding device for a low-voltage cable according to claim 1, characterized in that, The moving component (4) further includes at least one optical axis (44), which is located between the two support plates (43) and its two ends are fixedly connected to the two support plates (43) respectively, and is located on one side of the lead screw (42). The bottom of the stranded wire assembly (7) is slidably connected to the lead screw (42).

3. The stranding device for a low-voltage cable according to claim 2, characterized in that, The stranded wire assembly (7) includes a first fixed bracket (71) and a stranded wire head (72). The bottom of the first fixed bracket (71) is threadedly connected to the lead screw (42) and slidably connected to the optical axis (44). The stranded wire head (72) is located inside the first fixed bracket (71).

4. The stranding device for a low-voltage cable according to claim 3, characterized in that, The top of the base (1) has grooves (8) on both sides. The two grooves (8) are located on both sides of the moving component (4). The bottom of the first fixed bracket (71) is provided with wheel frames (73) at both ends. Each wheel frame (73) is provided with a guide wheel (74). Each guide wheel (74) is located in the corresponding groove (8).

5. A stranding device for a low-voltage cable according to claim 4, characterized in that, The wire feeding assembly (2) includes a first rotating bracket (21) and a wire feeding reel (22). The first rotating bracket (21) is located at the feeding end of the top of the bracket, and the wire feeding reel (22) is rotatably located inside the first rotating bracket (21). The twisting assembly (3) includes a second rotating bracket (31) and a twisting disc (32). The second rotating bracket (31) is located at the top of the bracket and between the first rotating bracket (21) and the twisting assembly (7). The twisting disc (32) is rotatably located inside the second rotating bracket (31). Both the pay-off disc (22) and the twisting disc (32) have wire-passing holes arranged in a circular array, and the two are connected by multiple connecting rods (23).

6. The stranding device for a low-voltage cable according to claim 5, characterized in that, The wire pressing assembly (5) includes a second fixed bracket (51) and a wire pressing unit (52). The second fixed bracket (51) is located between the stranded wire assembly (7) and the take-up wire assembly (6). The wire pressing unit (52) is fixed to the top of the second fixed bracket (51).

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