Wire and cable core production cradle type cabling machine

Abstract

This utility model discloses a cradle-type cable forming machine for producing wire and cable cores. It includes a fixed rotating shaft, a side frame, a support frame, and a limiting frame fixedly sleeved on the fixed rotating shaft, as well as several cradle frames rotatably connected between the side frame and the support frame. A wire reel is rotatably mounted on each cradle frame. The wires unwound from the reel pass through the support frame and the limiting frame sequentially and are wound together using a stranding die. Four guide rods, parallel to the wires, are positioned around each wire at the location corresponding to the wire's position between the support frame and the limiting frame. This utility model uses multiple sets of horizontal and vertical straightening wheels between the support frame and the limiting frame to perform online straightening on the wires conveyed between the reel and the stranding die, ensuring that each wire has the same straightness. Using wires with the same straightness for stranding not only guarantees the same utilization rate of each wire but also ensures the uniformity of the final cable's wires, thus improving product quality.

Description

Technical Field

[0001] This utility model relates to the technical field of cable production equipment, specifically a cradle-type cable forming machine for producing wire and cable cores. Background Technology

[0002] The cradle cable forming machine is a piece of equipment used in cable production. It is mainly used to twist multiple core wires into cables. It is suitable for forming cables with 3 to 7 cores. It can perform untwisted twisting of round cables and non-untwisted twisting of fan-shaped cables. In addition, it can also be used for forming telephone cables, control cables, mining cables, plastic power cables, and cross-linked cables. It can also perform non-metallic wrapping and metal armoring on the same machine.

[0003] The existing cradle cabling machine uses a natural pull-and-unwind method for the conductors. The conductors are originally wound on the spools, and after unwinding, they are directly stranded by the stranding die through the rotation of the cabling machine. Before stranding, the conductors are not straightened. Since the straightness of the conductors unwound on each spool is random and different, and the diameter of the conductors wound on the same spool is also different, the straightness of the conductors unwound on the same spool is also different. When conductors with different and random straightness are wound together, there is a tendency for the tension of the conductors unwound on each spool to be different during stranding. This not only causes different conductor utilization rates on each spool, but also affects the uniformity of the conductors in the final cable, resulting in defects. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cradle-type cable forming machine for producing wire and cable cores. This machine solves the problem that the natural pulling and unwinding method used in existing cradle-type cable forming machines results in different utilization rates of wires on each reel and affects the uniformity of the wires in the final cable.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A cradle-type cable forming machine for producing wire and cable cores includes a fixed rotating shaft, a side frame, a support frame, and a limiting frame fixedly sleeved on the fixed rotating shaft, and several cradle frames rotatably connected between the side frame and the support frame. A wire reel is rotatably mounted on the cradle frame, and the wires unwound on the wire reel pass through the support frame and the limiting frame in sequence and are wound together by a stranding mold. Four guide rods are provided at the position of each conductor between the support frame and the limiting frame. Two vertical connecting plates are slidably sleeved on each of the four guide rods. Four fixing frames are fixed between the two connecting plates. Multiple sets of horizontal straightening wheels and vertical straightening wheels are installed between the four fixing frames. Each set of horizontal straightening wheels and each set of vertical straightening wheels includes two straightening wheels symmetrically clamped on the surface of the conductor.

[0006] Preferably, a strong spring sleeved on the guide rod is installed between the connecting plate near the limiting frame and the limiting frame.

[0007] Preferably, there are multiple sets of both the horizontal straightening wheels and the vertical straightening wheels, and the horizontal straightening wheels and the vertical straightening wheels are arranged at intervals on the fixed frame.

[0008] Preferably, the horizontal straightening wheel and the vertical straightening wheel are mounted perpendicularly to each other on the fixed frame.

[0009] Preferably, both the transverse straightening wheel and the vertical straightening wheel are grooved wheels, and the diameter of the groove is equal to the diameter of the conductor.

[0010] Compared with the prior art, the present invention has the following beneficial effects: This invention uses multiple sets of horizontal and vertical straightening wheels between the support frame and the limiting frame to straighten the conductors conveyed between the reel and the stranding mold online, ensuring that each conductor has the same straightness. Using conductors with the same straightness for stranding not only guarantees the same utilization rate of each conductor but also ensures the uniformity of the conductors in the final cable, thus improving product quality. This invention solves the problem of inconsistent conductor utilization rates on different reels and the impact on the uniformity of conductors in the final cable caused by the natural pulling and unwinding mode of existing cradle cabling machines. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view of the corresponding positions of the support frame and the limiting frame of this utility model; Figure 3 This is a partial front view of the corresponding position of the fixing frame of this utility model; Figure 4 This is a partial side view of the corresponding position of the fixing frame of this utility model.

[0012] In the diagram: 1. Fixed pivot; 2. Side frame; 3. Support frame; 4. Limiting frame; 5. Cradle frame; 6. Wire reel; 7. Wire conductor; 8. Stranding mold; 9. Guide rod; 10. Connecting plate; 11. Fixed frame; 12. Horizontal straightening wheel; 13. Vertical straightening wheel; 14. Strong spring. Detailed Implementation

[0013] 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.

[0014] like Figure 1-4 As shown, this utility model provides a technical solution: a cradle-type cable forming machine for producing wire and cable cores, including a fixed rotating shaft 1, a side frame 2, a support frame 3 and a limiting frame 4 fixedly sleeved on the fixed rotating shaft 1, and a plurality of cradle frames 5 rotatably connected between the side frame 2 and the support frame 3. A wire reel 6 is rotatably installed on the cradle frame 5, and the wire 7 unwound on the wire reel 6 passes through the support frame 3 and the limiting frame 4 in sequence and is wound together by a stranding mold 8. Four guide rods 9 are provided at the position of each wire 7 between the support frame 3 and the limiting frame 4, which are located around the wire 7 and parallel to the wire 7. Two vertical connecting plates 10 are slidably sleeved on each of the four guide rods 9. Four fixing frames 11 are fixed between the two connecting plates 10, which are located around the wire 7 and parallel to the wire 7. A strong spring 14 sleeved on the guide rod 9 is installed between the connecting plate 10 near the limiting frame 4 and the limiting frame 4. Multiple sets of horizontal straightening wheels 12 and vertical straightening wheels 13 are installed between the four fixed frames 11. Each set of horizontal straightening wheels 12 and each set of vertical straightening wheels 13 includes two straightening wheels symmetrically clamped on the surface of the conductor 7. There are multiple sets of horizontal straightening wheels 12 and vertical straightening wheels 13. The horizontal straightening wheels 12 and vertical straightening wheels 13 are spaced apart on the fixed frame 11. The horizontal straightening wheels 12 and vertical straightening wheels 13 are installed perpendicularly to the fixed frame 11. Both the horizontal straightening wheels 12 and vertical straightening wheels 13 are grooved wheels and the diameter of the groove is equal to the diameter of the conductor 7.

[0015] Working principle: Under the action of the cable traction equipment, the conductors 7 on the reel 6 are naturally unwound and conveyed to the right. At the same time, under the action of the side frame 2, support frame 3, limit frame 4 and cradle frame 5 rotating around the axis of the fixed rotating shaft 1, the multiple conductors 7 are twisted into a cable by the stranding mold 8. During the process of the conductors 7 being conveyed to the right, they are squeezed and straightened by multiple sets of horizontal straightening rollers 12 and vertical straightening rollers 13 in sequence, so that the conductors 7 with different straightness during unwinding are all straightened and twisted after being of the same straightness. Using conductors 7 with the same straightness for twisting not only ensures that the utilization rate of each conductor 7 is the same, but also ensures that the uniformity of each conductor 7 in the final cable is consistent, thus improving the quality of the product.

[0016] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cradle-type cable forming machine for producing wire and cable cores, comprising a fixed rotating shaft (1), a side frame (2), a support frame (3), and a limiting frame (4) fixedly sleeved on the fixed rotating shaft (1), and a plurality of cradle frames (5) rotatably connected between the side frame (2) and the support frame (3), wherein a wire spool (6) is rotatably mounted on the cradle frame (5), and the wire (7) unwound on the wire spool (6) passes through the support frame (3) and the limiting frame (4) in sequence and is wound together by a stranding mold (8); Its features are: Four guide rods (9) are provided at the position of each conductor (7) between the support frame (3) and the limiting frame (4). Each of the four guide rods (9) has two vertical connecting plates (10) slidably sleeved on them. Four fixing frames (11) are fixed between the two connecting plates (10) and are located around the conductor (7) and parallel to it. Multiple sets of horizontal straightening wheels (12) and vertical straightening wheels (13) are installed between the four fixing frames (11). Each set of horizontal straightening wheels (12) and each set of vertical straightening wheels (13) includes two straightening wheels symmetrically clamped on the surface of the conductor (7).

2. The cradle-type cable forming machine for producing wire and cable cores according to claim 1, characterized in that: A strong spring (14) sleeved on the guide rod (9) is installed between the connecting plate (10) near the limiting frame (4) and the limiting frame (4).

3. The cradle-type cable forming machine for producing wire and cable cores according to claim 1, characterized in that: There are multiple sets of the horizontal straightening wheel (12) and the vertical straightening wheel (13), and the horizontal straightening wheel (12) and the vertical straightening wheel (13) are spaced apart on the fixed frame (11).

4. The cradle-type cable forming machine for producing wire and cable cores according to claim 1, characterized in that: The horizontal straightening wheel (12) and the vertical straightening wheel (13) are mounted perpendicularly to each other on the fixed frame (11).

5. The cradle-type cable forming machine for producing wire and cable cores according to claim 1, characterized in that: Both the transverse straightening wheel (12) and the vertical straightening wheel (13) are grooved wheels with the same diameter as the wire (7).

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