Constant-tension conductor wire twisting process wire supply structure with conductor straightening device

Abstract

The invention discloses a constant-tension conductor wire twisting process wire supply structure with a conductor straightening device. The constant-tension conductor wire twisting process wire supply structure comprises a cage strander body, one end of the cage stranding machine body is provided with a wire outlet disc. A first eye mold disc, a second eye mold disc and a wire concentration eye mold disc are coaxially arranged on the front side of the wire outlet disc in sequence, and the first eye mold disc and the second eye mold disc are static relative to the wire outlet disc; a wire core penetrating out of the wire outlet disc sequentially penetrates through the first eye mold disc and the second eye mold disc through the guide mechanism and then jointly penetrates out of the wire concentration eye mold. And a straightening mechanism for straightening each core of the wire is arranged between the first eye mold disc and the second eye mold disc. The first eye mold disc and the second eye mold disc are sequentially and coaxially arranged on the front side of the wire outlet disc, the straightening mechanisms are arranged on the first eye mold disc and the second eye mold disc, each wire core is straightened through the straightening mechanisms before a cable is twisted, so that residual stress in the wire cores is optimized, and the quality of the twisted cable is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wire twisting machines, in particular to a wire supply structure for a constant tension conductor wire twisting process with a conductor straightening device. Background Art

[0002] Wire stranding machine is a kind of mechanical equipment that can be widely used in twisting various soft / hard conductor wires, so that multiple single conductors are twisted into one strand to meet the process requirements of wire materials. Wire stranding machine can be generally divided into single stranding machine, pair stranding machine, high-speed stranding machine, back-twisting machine, cage stranding machine, frame stranding machine, tubular stranding machine and disc stranding machine according to the stranding method; among them, tubular stranding machine is the most widely used, so the research on tubular stranding machine is particularly important.

[0003] At present, in the existing tubular stranding machine, during the stranding process, since there are multiple wire cores supplied, the distances between the wire core supply reels are not equal. The number of wire holes in the machine through which the wire core passes is also different due to the different distances between the wire supply reels. When the stranding body rotates, the wire core passes through different numbers of wire modules in the machine due to different wire passing distances. The different accumulation rates of friction stress caused by the centrifugal force generated by the rotation of the stranding body lead to uneven tension of the wire supply reels. The friction stress caused by the rotating centrifugal force will also lead to uneven tightness of the wire cores due to the uneven tension of each wire core, and the friction stress of the wire cores will also be uneven, resulting in uneven bending and twisting of each wire core. In addition, the wire load of each reel in the tubular stranding machine may not be equal, which will also affect the unequal wire supply tension value of each wire core. In addition, due to the unstable residual stress in the wire core, if the tension cannot be stably controlled, it will affect the stranding quality of the wire core.

[0004] Therefore, it is necessary to design a constant tension conductor wire twisting process supply structure with a conductor straightening device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies of the prior art and to provide a constant tension conductor wire twisting process supply structure with a conductor straightening device.

[0006] The technical solution of the present invention is: a constant tension conductor wire twisting process supply structure with a conductor straightening device, comprising a cage twisting machine body; a wire outlet drum is provided at one end of the cage twisting machine body; a first eye mold disk, a second eye mold disk and a wire collection eye mold disk are coaxially provided on the front side of the wire outlet drum in sequence, and the first eye mold disk and the second eye mold disk are relatively stationary with the wire outlet drum; the wire core passing through the wire outlet drum passes through the first eye mold disk and the second eye mold disk in sequence through a guiding mechanism and then passes through the wire collection eye mold together; a straightening mechanism for straightening each wire core is provided between the first eye mold disk and the second eye mold disk.

[0007] A rotating shaft is provided in the middle of the cage stranding machine body; the outlet disc, the first eye mold disc and the second eye mold disc are all fixedly connected to the rotating shaft; the first eye mold disc and the second eye mold disc have equal diameters, and the hole positions on the first eye mold disc and the second eye mold disc correspond one to one.

[0008] The guide mechanism comprises a first guide wheel arranged at the outlet of the outlet tray, a second guide wheel arranged at the inlet of the first eye mold tray, and a third guide wheel arranged at the outlet of the second eye mold tray.

[0009] The straightening mechanism includes a fixed bracket; the two ends of the fixed bracket are fixedly connected to the first eye mold plate and the second eye mold plate respectively; a row of first straightening wheels are provided on both sides of one end of the fixed bracket, and the two rows of first straightening wheels are staggered; a row of second straightening wheels are provided on the other two sides of the other end of the fixed bracket, and the two rows of first straightening wheels are staggered.

[0010] The diameters of the eye holes on the first eye mold plate and the second eye mold plate are slightly smaller than the diameter of the wire core.

[0011] The eye mold holes on the first eye mold plate and the second eye mold plate are arranged in such a way that an eye mold hole with a smaller diameter is arranged between two adjacent eye mold holes with larger diameters.

[0012] The diameter of the larger eye holes on the first eye mold plate and the second eye mold plate is 99% of the wire core diameter, and the diameter of the smaller eye holes is 97% of the wire core diameter.

[0013] By adopting the above technical scheme, the present invention has the following beneficial effects: (1) The present invention coaxially arranges a first eye mold disk and a second eye mold disk in sequence on the front side of the outlet disk, and a straightening mechanism is arranged on the first eye mold disk and the second eye mold disk, and each wire core is straightened by the straightening mechanism before the cable is twisted. At the same time, the first eye mold can provide a constant tension to the corresponding wire core to ensure the stability of the tension of each wire core and optimize the residual stress inside the wire core, thereby improving the quality of the cable after twisting.

[0014] (2) The diameters of the first eye mold plate and the second eye mold plate of the present invention are equal, and the hole positions on the first eye mold plate and the second eye mold plate correspond one to one, so that the wire cores of the first eye mold plate and the second eye mold plate can maintain a horizontal position, so as to facilitate the coordination between the straightening mechanism and the wire core.

[0015] (3) The guide mechanism of the present invention adopts a first guide wheel, a second guide wheel and a third guide wheel to facilitate more stable passage of the wire core from the first eye mold plate and the second eye mold plate, and the wire core is controlled by the first eye mold plate to form a stretching tension, without the need to set up an additional tension sensor, thereby reducing production costs.

[0016] (4) The straightening mechanism of the present invention uses four rows of straightening wheels arranged around the fixed bracket to contact the wire core, thereby performing all-round straightening of the wire core, ensuring the straightening effect of the wire core.

[0017] (5) The diameter of the eye holes on the first eye plate and the second eye plate of the present invention is slightly smaller than the diameter of the wire core, so as to ensure that the first eye plate can provide a certain tension to the wire core and ensure the stability of the twisting of the wire core.

[0018] (6) The arrangement of the eye holes on the first eye mold plate and the second eye mold plate of the present invention is that an eye mold hole with a smaller diameter is set between two adjacent eye mold holes with larger diameters, so that the wire cores after passing through the first eye mold plate and the second eye mold plate are twisted with two wire cores with larger diameters sandwiching a wire core with a smaller diameter, thereby making the cable twisted more tightly and improving the twisting effect of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the straightening mechanism of the present invention.

[0022] The reference numerals in the accompanying drawings are:

[0023] Cage stranding machine body 1, outlet reel 2, first eye mold reel 3, second eye mold reel 4, wire collection eye mold reel 5, guide mechanism 6, first guide wheel 6-1, second guide wheel 6-2, third guide wheel 6-3, straightening mechanism 7, fixed bracket 7-1, first straightening wheel 7-2, second straightening wheel 7-3. DETAILED DESCRIPTION

[0024] (Example 1)

[0025] See Figure 1 and Figure 2 A constant tension conductor wire twisting process supply structure with a conductor straightening device in this embodiment includes a cage twisting machine body 1; a wire outlet drum 2 is provided at one end of the cage twisting machine body 1; a first eye mold disk 3, a second eye mold disk 4 and a wire collection eye mold disk 5 are coaxially provided on the front side of the wire outlet drum 2 in sequence, and the first eye mold disk 3 and the second eye mold disk 4 are relatively stationary with the wire outlet drum 2; the wire core passing through the wire outlet drum 2 passes through the first eye mold disk 3 and the second eye mold disk 4 in sequence through a guiding mechanism 6 and then passes through the wire collection eye mold together; a straightening mechanism 7 for straightening each wire core is provided between the first eye mold disk 3 and the second eye mold disk 4.

[0026] Furthermore, in order to facilitate the installation of the first wire outlet disc 2, the first eye mold disc 3 and the second eye mold disc 4, a rotating shaft is provided in the middle of the cage twisting machine body 1; the wire outlet disc 2, the first eye mold disc 3 and the second eye mold disc 4 are all fixedly connected to the rotating shaft; the first eye mold disc 3 and the second eye mold disc 4 have the same diameter, and the hole positions on the first eye mold disc 3 and the second eye mold disc 4 correspond one by one, so that the wire cores of the first eye mold disc 3 and the second eye mold disc 4 can maintain a horizontal position, so as to facilitate the cooperation between the straightening mechanism 7 and the wire cores.

[0027] Furthermore, the guide mechanism 6 includes a first guide wheel 6-1 arranged at the outlet of the wire outlet disk 2, a second guide wheel 6-2 arranged at the entrance of the first eye mold disk 3, and a third guide wheel 6-3 arranged at the outlet of the second eye mold disk 4, so as to more stably pass the wire core through the first eye mold disk 3 and the second eye mold disk 4, and through the control of the first eye mold disk 3 on the wire core, a stretching tension is formed, without the need to additionally set up a tension sensor, thereby reducing production costs.

[0028] Furthermore, the straightening mechanism 7 includes a fixed bracket 7-1; the two ends of the fixed bracket 7-1 are fixedly connected to the first eye mold plate 3 and the second eye mold plate 4 respectively; a row of first straightening wheels 7-2 are provided on both sides of one end of the fixed bracket 7-1, and the two rows of first straightening wheels 7-2 are staggered; a row of second straightening wheels 7-3 are provided on the other two sides of the other end of the fixed bracket 7-1, and the two rows of second straightening wheels 7-3 are staggered; this embodiment adopts the first straightening wheel 7-2 and the second straightening wheel to straighten the wire core, thereby straightening the wire core in all directions, ensuring the straightening effect of the wire core.

[0029] Furthermore, the diameters of the eye holes on the first eye mold plate 3 and the second eye mold plate 4 are slightly smaller than the diameter of the wire core, so as to ensure that the first eye mold plate 3 can provide a certain tension to the wire core, thereby ensuring the stability of the twisting of the wire core.

[0030] Furthermore, the eye holes on the first eye mold plate 3 and the second eye mold plate 4 are arranged in such a way that an eye mold hole with a smaller diameter is set between two adjacent eye mold holes with larger diameters, so that the wire cores after passing through the first eye mold plate 3 and the second eye mold plate 4 are twisted with two wire cores with larger diameters sandwiching a wire core with a smaller diameter, thereby making the cable twisted more tightly and improving the twisting effect of the cable.

[0031] Preferably, the diameter of the larger eye holes on the first eye mold plate 3 and the second eye mold plate 4 is 99% of the wire core diameter, and the diameter of the smaller eye holes is 97% of the wire core diameter, so that the twisting effect of the cable is better.

[0032] The constant tension conductor wire twisting process supply structure with a conductor straightening device in this embodiment is coaxially provided with a first eye mold plate 3 and a second eye mold plate 4 in sequence on the front side of the outlet drum 2, and a straightening mechanism 7 is provided on the first eye mold plate 3 and the second eye mold plate 4. Each wire core is straightened by the straightening mechanism 7 before the cable is twisted, so as to optimize the residual stress inside the wire core, thereby improving the quality of the cable after twisting. In addition, the wire diameter control of the first eye mold plate 3 and the second eye mold plate 4 forms a tensile tension, and there is no need to set up an additional tension sensor, thereby reducing the production cost. At the same time, the outer diameter of the wire core is controlled by the first eye mold plate 3 and the second eye mold plate 4, so that the cable after twisting is tighter, thereby improving the twisting effect of the cable.

[0033] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A constant tension conductor wire twisting process supply structure with a conductor straightening device, characterized in that: The invention comprises a cage stranding machine body (1); a wire outlet drum (2) is provided at one end of the cage stranding machine body (1); a first eye mold disk (3), a second eye mold disk (4) and a wire collection eye mold disk (5) are coaxially provided in sequence on the front side of the wire outlet drum (2), and the first eye mold disk (3) and the second eye mold disk (4) are relatively stationary with the wire outlet drum (2); the wire core passing through the wire outlet drum (2) passes through the first eye mold disk (3) and the second eye mold disk (4) in sequence through a guide mechanism (6) and then passes through the wire collection eye mold together; a straightening mechanism (7) for straightening each wire core is provided between the first eye mold disk (3) and the second eye mold disk (4).

2. A constant tension conductor wire twisting process supply structure with a conductor straightening device according to claim 1, characterized in that: A rotating shaft is provided in the middle of the cage stranding machine body (1); the outlet disc (2), the first eye-mould disc (3) and the second eye-mould disc (4) are all fixedly connected to the rotating shaft; the first eye-mould disc (3) and the second eye-mould disc (4) have the same diameter, and the holes on the first eye-mould disc (3) and the second eye-mould disc (4) correspond one to one.

3. A constant tension conductor wire twisting process supply structure with a conductor straightening device according to claim 1, characterized in that: The guide mechanism (6) comprises a first guide wheel (6-1) provided at the outlet of the outlet disc (2), a second guide wheel (6-2) provided at the inlet of the first eye mould disc (3), and a third guide wheel (6-3) provided at the outlet of the second eye mould disc (4).

4. A constant tension conductor wire twisting process supply structure with a conductor straightening device according to claim 1, characterized in that: The straightening mechanism (7) comprises a fixed bracket (7-1); the two ends of the fixed bracket (7-1) are respectively fixedly connected to the first eye mold plate (3) and the second eye mold plate (4); a row of first straightening wheels (7-2) are arranged on both sides of one end of the fixed bracket (7-1), and the two rows of first straightening wheels (7-2) are staggered; and a row of second straightening wheels (7-3) are arranged on the other two sides of the other end of the fixed bracket (7-1), and the two rows of second straightening wheels (7-3) are staggered.

5. The constant tension conductor wire twisting process supply structure with a conductor straightening device according to claim 1, characterized in that: The diameters of the eye holes on the first eye mold disc (3) and the second eye mold disc (4) are slightly smaller than the diameter of the wire core.

6. A constant tension conductor wire twisting process supply structure with a conductor straightening device according to claim 1, characterized in that: The eye mold holes on the first eye mold plate (3) and the second eye mold plate (4) are arranged in such a way that an eye mold hole with a smaller diameter is arranged between two adjacent eye mold holes with larger diameters.

7. A constant tension conductor wire twisting process supply structure with a conductor straightening device according to claim 6, characterized in that: The diameter of the larger eye mold hole on the first eye mold plate (3) and the second eye mold plate (4) is 99% of the wire core diameter, and the diameter of the smaller eye mold hole is 97% of the wire core diameter.

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