Anti-loose bare copper wire twisting device

Abstract

The utility model relates to copper wire stranding field especially, relate to a kind of anti-loosening bare copper wire stranding device.The utility model provides a kind of anti-loosening bare copper wire stranding device, including cage stranding machine, mounting plate, damping shaft, cam and connecting plate etc.;Cage stranding machine right part front and back both sides are fixedly connected with mounting plate, damping shaft is fixedly connected between two mounting plates, cam is slidably connected in damping shaft, and connecting plate is fixedly connected in the top front side of damping shaft. By setting cam profile highest point to copper wire bundle exert radial pressure, realize the close compaction of strand, effectively eliminate internal gap, prevent relative sliding between strand during stranding process;By the arc structure of cam wire groove, copper wire bundle is pre-bent and formed, so that it is adapted to subsequent spiral stranding direction in advance, and stress concentration is reduced;Cam bottom U-shaped groove wraps and restricts wire bundle, ensures arrangement order, cam groove center axis is accurately aligned with stranding cage entrance, and copper wire bundle is forced to enter stranding area along straight line coaxially.

Description

Technical Field

[0001] This utility model relates to the field of copper wire stranding, and in particular to a device for preventing loosening of bare copper wire stranding. Background Technology

[0002] In the field of power transmission and electrical connection, bare copper wire is widely used in various electrical engineering projects due to its excellent conductivity. In order to improve the mechanical strength, flexibility and construction convenience of the conductor, it is usually necessary to twist multiple single-strand bare copper wires together to form multi-strand stranded wire.

[0003] In the traditional bare copper wire stranding process, due to the lack of effective anti-loosening design, the stranded copper wire is prone to loosening, lifting, jumping, or even completely detaching from the stranded structure when subjected to vibration, bending, twisting, or external pulling during transportation, handling, coiling, unfolding, and on-site laying. This loosening not only destroys the overall regularity and roundness of the stranded wire, seriously affecting the appearance quality and process consistency of the product, but also causes uneven stress on the individual wires inside the stranded structure, reducing the overall mechanical strength and tensile properties.

[0004] Therefore, this utility model provides a device for preventing loosening of bare copper wire stranding, thus solving the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of traditional bare copper wires, which are prone to loosening and stranding due to the lack of anti-loosening design, affecting the appearance and reducing mechanical performance, this utility model provides an anti-loosening bare copper wire stranding device.

[0006] The technical solution of this utility model is as follows: A bare copper wire stranding device for preventing loosening includes a cage strander, a mounting plate, a damping shaft, a cam, a connecting plate, a sliding rod, a fixing rod, and a spring. Mounting plates are fixedly connected to both the front and rear sides of the right side of the cage strander. A damping shaft is fixedly connected between the two mounting plates. A cam is slidably connected inside the damping shaft. A wire groove is opened inside the cam. Multiple adjustment holes are opened inside the front mounting plate. A connecting plate is fixedly connected to the top front side of the damping shaft. A sliding rod is slidably connected inside the connecting plate. A fixing rod is fixedly connected to the rear end of the sliding rod. The other end of the fixing rod is engaged with the adjustment hole. A spring is connected between the fixing rod and the connecting plate.

[0007] Preferably, the device also includes an indicator block, a connecting ring, and an indicator plate. The indicator block is fixedly connected to the left side of the fixing rod, the connecting ring is fixedly connected to the front of the front mounting plate, and the indicator plate is installed in front of the connecting ring.

[0008] Preferably, it also includes a first connecting rod, with the front end of the damping shaft fixedly connected to the first connecting rod.

[0009] Preferably, the slide rod also includes a second connecting rod, with the front end of the slide rod fixedly connected to the second connecting rod.

[0010] As a preferred design, the cam is designed with an arc-shaped structure.

[0011] Preferably, the center of the conductor groove is aligned with the inlet of the cage winch.

[0012] The beneficial effects of this utility model are as follows: 1. By setting the highest point of the cam profile to apply radial pressure to the copper wire bundle, the strands are tightly compacted, effectively eliminating internal gaps and preventing relative slippage between strands during stranding; the arc-shaped structure of the cam guide groove pre-bends the copper wire bundle, allowing it to adapt to the subsequent spiral stranding direction in advance, reducing stress concentration; the U-shaped groove at the bottom of the cam wraps around and constrains the wire bundle, and the groove wall restricts the lateral displacement of the copper wire, ensuring orderly arrangement; at the same time, the central axis of the cam groove is precisely aligned with the entrance of the auger, forcing the copper wire bundle to enter the stranding area coaxially along a straight line.

[0013] 2. By setting a first connecting rod to drive the sliding rod to move outward, compressing the spring and causing the fixed rod to disengage from the adjustment hole, the damping shaft is released from locking. In conjunction with the second connecting rod, the damping shaft and the cam fixed to it are rotated, realizing flexible adjustment of the cam angle. By the spring returning to its original position, the fixed rod is pushed back into the adjustment hole, realizing reliable positioning and locking of the damping shaft and the cam. This structure is easy to operate, the adjustment process is stable, and combined with the indicator plate, the working angle of the cam can be precisely controlled. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the damping shaft, cam, and guide groove components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, including the adjustment hole, the indicator block, and the first connecting rod.

[0017] Figure 4 This is a three-dimensional structural diagram of the connecting plate, sliding rod, and fixing rod of this utility model.

[0018] In the attached drawings, the following are the reference numerals: 1-cage winch, 2-mounting plate, 3-damping shaft, 4-cam, 5-wire groove, 6-adjusting hole, 7-connecting plate, 8-sliding rod, 9-fixed rod, 10-spring, 11-indicator block, 12-connecting ring, 13-indicator plate, 14-first connecting rod, 15-second connecting rod. Detailed Implementation

[0019] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] Example: A device for preventing loosening of bare copper wire stranding, such as Figures 1-4 As shown, the system includes a cage winch 1, mounting plate 2, damping shaft 3, cam 4, connecting plate 7, sliding rod 8, fixing rod 9, spring 10, indicator block 11, connecting ring 12, indicator plate 13, first connecting rod 14, and second connecting rod 15. Mounting plates 2 are fixedly connected to both the front and rear sides of the right side of the cage winch 1. A damping shaft 3 is fixedly connected between the two mounting plates 2. A cam 4 is slidably connected inside the damping shaft 3. The cam 4 is designed with an arc shape to facilitate the guidance of the copper wire. A wire groove 5 is formed on the outer ring of the cam 4. The wire groove 5 has a U-shaped design to ensure orderly arrangement of the strands. The center of the wire groove 5 is aligned with the center of the cage winch 1. The openings are aligned to avoid the copper wires being pulled at an angle or worn unevenly. The front mounting plate 2 has multiple adjustment holes 6 inside. The top front of the damping shaft 3 is fixedly connected to a connecting plate 7. The connecting plate 7 is slidably connected to a sliding rod 8. The rear end of the sliding rod 8 is fixedly connected to a fixing rod 9. The other end of the fixing rod 9 is engaged with the adjustment hole 6. A spring 10 is connected between the fixing rod 9 and the connecting plate 7. An indicator block 11 is fixedly connected to the left side of the fixing rod 9. A connecting ring 12 is fixedly connected to the front of the front mounting plate 2. An indicator plate 13 is installed in front of the connecting ring 12. The front end of the damping shaft 3 is fixedly connected to a first connecting rod 14. The front end of the sliding rod 8 is fixedly connected to a second connecting rod 15.

[0021] When using this device, the operator should first thread multiple copper wires sequentially into the wire groove 5 of the cam 4. The bottom of the cam 4 has a U-shaped groove that can wrap and constrain the copper wire bundle. The groove wall can restrict the lateral movement of the copper wires, ensuring that the wire bundle is arranged in an orderly manner and enters the subsequent stranding process along a straight path. After the copper wires are in place, if it is necessary to adjust the angle of the cam 4, the operator should pull the first connecting rod 14 outward. This action causes the sliding rod 8 to move outward synchronously, compressing the spring 10, and at the same time causing the fixing rod 9 to disengage from the adjusting hole 6, thereby releasing the lock on the damping shaft 3. Subsequently, the operator can rotate the second connecting rod 15, causing the damping shaft 3 and its fixed cam 4 to rotate synchronously. By observing the scale on the indicator plate 13, the cam 4 can be precisely adjusted to the required working angle. After adjustment, the first connecting rod 14 is released. Under the elastic force of the spring 10, the sliding rod 8 automatically resets, driving the fixed rod 9 to re-engage into the corresponding adjustment hole 6, thus achieving reliable positioning and locking of the damping shaft 3 and the cam 4. When the cam 4 is in the working position, the highest point of its profile acts downward on the copper wire bundle, applying radial pressure to compact each strand of copper wire, eliminating internal gaps and preventing relative slippage between strands. At the same time, the arc-shaped structure of the guide groove 5 of the cam 4 causes the copper wire bundle to be pre-bent before entering the winding cage, adapting in advance to the subsequent spiral winding direction. In addition, the central axis of the groove of the cam 4 is precisely aligned with the entrance of the winding cage, forcing the copper wire bundle to be transported stably along a straight line, ensuring that it enters the winding area coaxially, avoiding eccentricity or twisting, thereby significantly improving the winding accuracy and product consistency.

[0022] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A device for preventing loosening of bare copper wire stranding, characterized in that: The device includes a cage winch (1), a mounting plate (2), a damping shaft (3), a cam (4), a connecting plate (7), a sliding rod (8), a fixing rod (9), and a spring (10). Mounting plates (2) are fixed to both the front and rear sides of the right side of the cage winch (1). A damping shaft (3) is fixed between the two mounting plates (2). A cam (4) is slidably connected inside the damping shaft (3). A wire groove (5) is opened on the outer ring of the cam (4). Multiple adjustment holes (6) are opened inside the front mounting plate (2). A connecting plate (7) is fixed to the front top of the damping shaft (3). A sliding rod (8) is slidably connected inside the connecting plate (7). A fixing rod (9) is fixed to the rear end of the sliding rod (8). The other end of the fixing rod (9) is engaged with the adjustment hole (6). A spring (10) is connected between the fixing rod (9) and the connecting plate (7).

2. The anti-loosening bare copper wire stranding device according to claim 1, characterized in that: It also includes an indicator block (11), a connecting ring (12) and an indicator plate (13). The indicator block (11) is fixed to the left side of the fixing rod (9), and the connecting ring (12) is fixed to the front of the front mounting plate (2). The indicator plate (13) is installed on the front of the connecting ring (12).

3. The anti-loosening bare copper wire stranding device according to claim 2, characterized in that: It also includes a first connecting rod (14), and the front end of the damping shaft (3) is fixed to the first connecting rod (14).

4. The anti-loosening bare copper wire stranding device according to claim 3, characterized in that: It also includes a second connecting rod (15), and the front end of the sliding rod (8) is fixedly connected to the second connecting rod (15).

5. The anti-loosening bare copper wire stranding device according to claim 4, characterized in that: The cam (4) is designed as an arc structure.

6. The anti-loosening bare copper wire stranding device according to claim 5, characterized in that: The center of the wire trough (5) is aligned with the inlet of the cage winch (1).

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