阅读说明：本技术 预扭设备、分割导体接合的方法及线缆的制造方法 (Pre-twisting apparatus, method of dividing conductor joint and method of manufacturing cable ) 是由 夏云海 侯虹剑 龚祎豪 张建民 付长琦 缪海庆 于 2020-12-31 设计创作，主要内容包括：一种预扭设备,包括支架、导轨组及多个夹具,导轨组固定于支架的上方,多个夹具沿导轨的延伸方向可活动地设置于导轨组上,每一夹具包括相对设置的第一压块和第二压块,第一压块和第二压块用于围设形成扇形过孔,相邻两个夹具的扇形过孔于垂直延伸方向的投影面内错开第一预定角度θ1,相距最远的两个夹具的扇形过孔于投影面内错开第二预定角度θ2,第一预定角度θ1与第二预定角度θ2满足关系:θ2＝(N-1)×θ1,其中,N为夹具的数量,N为大于或等于3的自然数。本发明提供的预扭设备通过多个夹具规范第一分割导体与第二分割导体的扭转角度以及预扭节距,有利于提高后续成缆的圆整性。另外,本发明还提供一种分割导体接合的方法以及线缆的制造方法。(The utility model provides a pretwist equipment, which comprises a bracket, guide rail group and a plurality of anchor clamps, guide rail group is fixed in the top of support, a plurality of anchor clamps are movably set up on guide rail group along the extending direction of guide rail, each anchor clamps include relative first briquetting and the second briquetting that sets up, first briquetting and second briquetting are used for enclosing and establish and form fan-shaped via hole, the fan-shaped via hole of two adjacent anchor clamps staggers first predetermined angle theta 1 in the projection plane of perpendicular extending direction, the fan-shaped via hole of two anchor clamps apart from the farthest staggers second predetermined angle theta 2 in the projection plane, first predetermined angle theta 1 and second predetermined angle theta 2 satisfy the relation, theta 2 ═ N-1) x theta 1, wherein, N is the quantity of anchor clamps, N is the natural number that is greater than or equal to 3. The pre-twisting equipment provided by the invention regulates the twisting angle and the pre-twisting pitch of the first split conductor and the second split conductor through the plurality of clamps, and is favorable for improving the roundness of subsequent cabling. In addition, the invention also provides a method for jointing the split conductors and a method for manufacturing the cable.)

1. A pre-twisting device is characterized by comprising a bracket, a guide rail group and a plurality of clamps, wherein the guide rail group is fixed above the bracket, the clamps are movably arranged on the guide rail group along the extending direction of the guide rail,

each clamp comprises a first pressing block and a second pressing block which are arranged oppositely, the first pressing block and the second pressing block are used for enclosing to form fan-shaped through holes, the fan-shaped through holes of two adjacent clamps are staggered by a first preset angle theta 1 in a projection plane perpendicular to the extending direction, the fan-shaped through holes of two clamps which are farthest away are staggered by a second preset angle theta 2 in the projection plane, and the first preset angle theta 1 and the second preset angle theta 2 meet the following relation:

θ 2 is (N-1) × θ 1, where N is the number of the jigs and N is a natural number greater than or equal to 3.

2. The pretwisting apparatus according to claim 1, wherein the fixture further comprises a fixed frame, the first pressing block and the second pressing block are movably disposed inside the fixed frame,

the first pressing block is provided with an arc-shaped surface, the second pressing block is provided with a V-shaped surface, and the V-shaped surface is close to the arc-shaped surface to form the fan-shaped through hole in an enclosing mode.

3. The pretwist apparatus of claim 2, wherein the clamp further comprises a first rotating rod, a first rotating handle, a second rotating rod and a second rotating handle, wherein external threads are provided on the outer sides of the first rotating rod and the second rotating rod,

the fixing frame is provided with a first through hole and a second through hole opposite to the first through hole, the inner sides of the first through hole and the second through hole are provided with internal threads matched with the external threads,

one end of the first rotating rod is connected to one side of the first pressing block, which is far away from the arc-shaped surface, the other end of the first rotating rod penetrates through the first through hole and is connected with the first rotating handle,

one end of the second rotating rod is connected to one side, deviating from the V-shaped surface, of the second pressing block, the other end of the second rotating rod penetrates through the second through hole and is connected to the second rotating handle, and the first rotating handle and the second rotating handle are used for adjusting the distance between the first pressing block and the second pressing block when rotating.

4. The pretwist apparatus of claim 1, wherein the fixture further comprises a slider and a limiting plate, the set of rails comprises a first rail and a second rail parallel to and opposite to the first rail,

the slider is provided with the third through hole that runs through relative surface, two the slider passes through third through hole movably overlaps respectively and locates first guide rail reaches on the second guide rail, the mount is connected in relative two between the slider, the limiting plate sets up in each the relative both sides of slider, the limiting plate is used for blockking the slider is followed first guide rail or the second guide rail removes.

5. The pretwist apparatus of claim 1, wherein the number of clamps is five, the first predetermined angle θ 1 is 90 degrees, and the second predetermined angle θ 2 is 360 degrees.

6. A method of split conductor splicing using the pretwist apparatus of any one of claims 1 to 5, comprising the steps of:

providing a first split conductor and a second split conductor, wherein the first split conductor comprises a first connecting end and a first free end opposite to the first connecting end, and the second split conductor comprises a second connecting end and a second free end opposite to the second connecting end;

sequentially enabling the first connecting end to penetrate through part of the clamps from one side of the pre-twisting equipment, and enabling the second connecting end to penetrate through the other part of the clamps from the other side of the pre-twisting equipment and to abut against the first connecting end;

adjusting the relative distance between every two adjacent clamps to enable the pre-twisting pitches of the first connecting end and the second connecting end to be the same;

adjusting the first pressing block and the second pressing block to be relatively close to each other to enclose to form the fan-shaped through hole, wherein the fan-shaped through hole is used for twisting the first connecting end and the second connecting end by a pre-twisting angle respectively; and

and welding the first connecting end and the second connecting end to obtain a joint split conductor.

7. The method of segmenting a conductor joint according to claim 6, wherein the number of clamps is five, and the step of "adjusting the relative distance of the limit limiters" includes:

and adjusting the distance between every two adjacent clamps to be the same, wherein the distance between every two adjacent clamps is one fourth of the pre-twisting pitch of the first connecting end or the second connecting end.

8. The split conductor joining method according to claim 6, wherein the first predetermined angle θ 1 is 90 degrees, and the step of "adjusting the first press piece and the second press piece to be relatively close to enclose the fan-shaped via hole" includes:

and the adjacent two fan-shaped via holes turn the first connecting end or the second connecting end by 90 degrees.

9. The method of split conductor joining as claimed in claim 6, wherein the step of "welding said first and second connection ends" comprises:

and carrying out spark-free welding on the abutting position of the first connecting end and the second connecting end by adopting a butt welding machine.

10. A method of manufacturing a cable comprising the steps of:

providing a plurality of single wires, and twisting the plurality of single wires into a split conductor with a fan-shaped cross section;

joining a plurality of the split conductors to obtain joined split conductors, by the method of split conductor joining according to claim 6;

and splicing the plurality of the joint split conductors into a cable-formed conductor with a circular cross section.

11. The method of manufacturing a cable according to claim 10, wherein the step of "stranding a plurality of single wires" includes the steps of:

and twisting a plurality of the single wires in a fan-shaped integral pre-twisting manner to obtain the split conductor.

Technical Field

The invention relates to a cable production technology, in particular to a pre-twisting device, a method for jointing split conductors and a method for manufacturing a cable.

Background

The high-voltage land cable has a limited length, and a line connector is needed to connect multiple sections of high-voltage land cables, and the use of the line connector easily causes line faults, so that the problem of increasing the length of the high-voltage land cable is needed to be solved.

However, in general, since the split conductors used in the high-voltage land cable are helical, it is very difficult to ensure the pre-twisting angle and the pre-twisting pitch to be consistent during the welding process, so that it is very difficult to produce split conductors having a large length, and the length of the split conductors limits the length of the high-voltage land cable.

Disclosure of Invention

In view of the above, there is a need to provide a pre-twisting apparatus to ensure that the pre-twisting angle and the pre-twisting pitch of the split conductors are consistent during the welding process.

In addition, it is also necessary to provide a method of joining divided conductors,

in addition, a manufacturing method of the cable is also needed.

The utility model provides a turn round equipment in advance, includes support, guide rail group and a plurality of anchor clamps, the guide rail group is fixed in the top of support, it is a plurality of anchor clamps are followed the extending direction movably of guide rail set up in on the guide rail group.

Each clamp comprises a first pressing block and a second pressing block which are arranged oppositely, the first pressing block and the second pressing block are used for enclosing to form fan-shaped through holes, the fan-shaped through holes of two adjacent clamps are staggered by a first preset angle theta 1 in a projection plane perpendicular to the extending direction, the fan-shaped through holes of two clamps which are farthest away are staggered by a second preset angle theta 2 in the projection plane, and the first preset angle theta 1 and the second preset angle theta 2 meet the following relation:

θ 2 is (N-1) × θ 1, where N is the number of the jigs and N is a natural number greater than or equal to 3.

Further, anchor clamps still include the mount, first briquetting reaches second briquetting movably set up in the inboard of mount.

The first pressing block is provided with an arc-shaped surface, the second pressing block is provided with a V-shaped surface, and the V-shaped surface is close to the arc-shaped surface to form the fan-shaped through hole in an enclosing mode.

Further, anchor clamps still include first swing arm, first swing handle, second swing arm and second swing handle, the outside of first swing arm and second swing arm is provided with the external screw thread.

The fixing frame is provided with a first through hole and a second through hole opposite to the first through hole, and inner threads matched with the outer threads are arranged on the inner sides of the first through hole and the second through hole.

One end of the first rotating rod is connected to one side, deviating from the arc-shaped surface, of the first pressing block, and the other end of the first rotating rod penetrates through the first through hole and is connected to the first rotating handle.

One end of the second rotating rod is connected to one side, deviating from the V-shaped surface, of the second pressing block, the other end of the second rotating rod penetrates through the second through hole and is connected to the second rotating handle, and the first rotating handle and the second rotating handle are used for adjusting the distance between the first pressing block and the second pressing block when rotating.

Further, anchor clamps still include slider and limiting plate, the guide rail group include first guide rail and with the parallel relative second guide rail of first guide rail. The slider is provided with the third through hole that runs through relative surface, two the slider passes through third through hole movably overlaps respectively and locates first guide rail reaches on the second guide rail, the mount is connected in relative two between the slider, the limiting plate sets up in each the relative both sides of slider, the limiting plate is used for blockking the slider is followed first guide rail or the second guide rail removes.

Further, the number of the clamps is five, the first predetermined angle θ 1 is 90 degrees, and the second predetermined angle θ 2 is 360 degrees.

A method of split conductor splicing using a pretwist apparatus as described above, comprising the steps of: providing a first split conductor and a second split conductor, wherein the first split conductor comprises a first connecting end and a first free end opposite to the first connecting end, and the second split conductor comprises a second connecting end and a second free end opposite to the second connecting end.

And sequentially enabling the first connecting end to penetrate through part of the clamp from one side of the pre-twisting device, and enabling the second connecting end to penetrate through the other part of the clamp from the other side of the pre-twisting device and abut against the first connecting end.

And adjusting the relative distance between every two adjacent clamps to ensure that the pre-twisting pitches of the first connecting end and the second connecting end are the same. And adjusting the first pressing block and the second pressing block to be relatively close to each other to enclose and form the fan-shaped through hole, wherein the fan-shaped through hole is used for twisting the first connecting end and the second connecting end by a pre-twisting angle respectively and welding the first connecting end and the second connecting end to obtain a joint split conductor.

Further, the number of the clamps is five, and the step of adjusting the relative distance of the limit limiter comprises: and adjusting the distance between every two adjacent clamps to be the same, wherein the distance between every two adjacent clamps is one fourth of the pre-twisting pitch of the first connecting end or the second connecting end.

Further, the first predetermined angle θ 1 is 90 degrees, and the step of "adjusting the first pressing block and the second pressing block to be relatively close to each other to enclose the fan-shaped via hole" includes: and the adjacent two fan-shaped via holes turn the first connecting end or the second connecting end by 90 degrees.

Further, the step of "welding the first connection end and the second connection end" includes: and carrying out spark-free welding on the abutting position of the first connecting end and the second connecting end by adopting a butt welding machine.

A method of manufacturing a cable comprising the steps of: and providing a plurality of single wires, and twisting the plurality of single wires into a split conductor with a sector-shaped cross section. By adopting the method for jointing the split conductors, a plurality of split conductors are jointed to obtain jointed split conductors, and the jointed split conductors are spliced into a cabled conductor with a circular cross section.

Further, the step of "stranding a plurality of single wires" includes the steps of: and twisting a plurality of the single wires in a fan-shaped integral pre-twisting manner to obtain the split conductor.

The pre-twisting equipment provided by the invention regulates the twisting angle and the pre-twisting pitch of the first split conductor and the second split conductor through the plurality of clamps, so that the welding position of the first split conductor and the second split conductor is ensured not to be easy to generate flash, and the roundness of subsequent cabling is favorably improved.

Drawings

Fig. 1 is a schematic view of the overall structure of a pretwisting apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic view of a plurality of first press pieces and second press pieces of the pretwisting apparatus shown in fig. 1.

Fig. 3 is a schematic view of the first and second compacts shown in fig. 2, in a projection in the extending direction.

Fig. 4 is a schematic view of the first compact and the second compact twisted and divided conductors shown in fig. 2.

Fig. 5 is a flow chart of a method of segmenting a conductor joint according to an embodiment of the present invention.

Description of the main elements

Pretwist apparatus 100

Support 10

Guide rail set 20

First guide rail 21

Second guide rail 22

Clamp 30

First clamp 30a

Second clamp 30b

Third clamp 30c

Fourth clamp 30d

Fifth jig 30e

Fan-shaped via hole 31

The first fan-shaped via hole 31a

Second fan-shaped via hole 31b

Third fan-shaped via hole 31c

Fourth fan-shaped via hole 31d

Fifth fan-shaped via hole 31e

Fixing frame 32

First through hole 321

Second through hole 322

First press block 33

Arc surface 331

Second press block 34

V-shaped surface 341

First rotating rod 35

First rotating handle 36

Second swing lever 37

Second rotating handle 38

Sliding block 39

Limiting plate 391

Third via 392

First divided conductor 41

First connection end 411

First free end 412

Second divided conductor 42

Second connecting end 421

Second free end 422

First predetermined angle θ 1

Second predetermined angle θ 2

Projection plane A

Pretwist pitch S

Direction of extension E

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the schematic diagram is only an example, which should not limit the scope of the present invention.

Referring to fig. 1 and 2, an embodiment of the present invention provides a pre-twisting apparatus 100 for twisting a first split conductor 41 and a second split conductor 42 to be jointed by the same angle and ensuring that the radial length of the first split conductor 41 is the same as the radial length of the second split conductor 42 under the same twisting angle.

The pre-twisting device 100 comprises a support 10, a guide rail set 20 and a plurality of clamps 30, wherein the guide rail set 20 is fixed above the support 10, the clamps 30 are movably arranged on the guide rail set 20 along the extending direction E of the guide rail set 20, and the clamps 30 clamp the first split conductor 41 and the second split conductor 42 along a plurality of distances and at a plurality of angles of the extending direction E.

Referring to fig. 3, the jigs 30 are disposed on the guide rail set 20 at a distance, each of the jigs 30 includes a fan-shaped through hole 31, two fan-shaped through holes 31 of two adjacent jigs 30 are staggered by a first predetermined angle θ 1 in a projection plane a perpendicular to the extending direction E, two fan-shaped through holes 31 of two farthest jigs 30 are staggered by a second predetermined angle θ 2 in the projection plane a, and the first predetermined angle θ 1 and the second predetermined angle θ 2 satisfy a relationship:

θ 2 is (N-1) × θ 1(N is 3, 4, 5, 6 … …). Wherein N is the number of the jigs 30.

In this embodiment, the clamp 30 includes a fixing frame 32, a first pressing block 33 and a second pressing block 34, and the first pressing block 33 and the second pressing block 34 are movably disposed in the fixing frame 32. The first pressing block 33 has an arc-shaped surface 331, the second pressing block 34 has a V-shaped surface 341, and the V-shaped surface 341 and the arc-shaped surface 331 are relatively close to enclose the fan-shaped through hole 31.

In this embodiment, the clamp 30 further includes a first rotating rod 35, a first rotating handle 36, a second rotating rod 37 and a second rotating handle 38, wherein outer sides of the first rotating rod 35 and the second rotating rod 37 are provided with external threads (not shown), and the fixing frame 32 is provided with a first through hole 321 and a second through hole 322 opposite to the first through hole 321.

The inner sides of the first through hole 321 and the second through hole 322 are provided with inner threads (not shown) matching with the outer threads. One end of the first rotating rod 35 is connected to one side of the first pressing block 33, which is away from the arc-shaped surface 331, and the other end of the first rotating rod 35 passes through the first through hole 321 and is connected to the first rotating handle 36. One end of the second rotating rod 37 is connected to a side of the second pressing block 34 away from the V-shaped surface 341, and the other end of the second rotating rod 37 passes through the second through hole 322 and is connected to the second rotating handle 38. The holder 32 is located between the first handle 36 and the second handle 38. The distance between the arc-shaped surface 331 and the V-shaped surface 341 can be adjusted by rotating the second rotating handle 38 or the first rotating handle 36, specifically, the fan-shaped via hole 31 is formed when the arc-shaped surface 331 is in contact with the V-shaped surface 341, and the fan-shaped via hole 31 disappears when the distance between the arc-shaped surface 331 and the V-shaped surface 341 increases.

In this embodiment, the fixture 30 further includes a slider 39 and a limiting plate 391, the guide rail set 20 includes a first guide rail 21 and a second guide rail 22 parallel to and opposite to the first guide rail 21, the slider 39 is provided with a third through hole 392 penetrating through opposite outer surfaces, the two sliders 39 are respectively movably sleeved on the first guide rail 21 and the second guide rail 22 through the third through hole 392, the fixing frame 32 is connected between the two opposite sliders 39, the limiting plate 391 is disposed on two opposite sides of each slider 39, and the limiting plate 391 is used for blocking the slider 39 from moving along the first guide rail 21 or the second guide rail 22, so as to limit the slider 39 on the first guide rail 21 or the second guide rail 22.

Referring to fig. 3, in the present embodiment, five fixtures 30 (i.e., a first fixture 30a, a second fixture 30b, a third fixture 30c, a fourth fixture 30d, and a fifth fixture 30E) are sequentially disposed along the extending direction E, and the pre-twisting apparatus 100 includes five sector-shaped via holes 31 (i.e., a first sector-shaped via hole 31a, a second sector-shaped via hole 31b, a third sector-shaped via hole 31c, a fourth sector-shaped via hole 31d, and a fifth sector-shaped via hole 31E), where every two adjacent sector-shaped via holes 31 (i.e., a first sector-shaped via hole 31a, a second sector-shaped via hole 31b, a third sector-shaped via hole 31c, and the like) are sequentially staggered by 90 degrees in the projection plane a, i.e., one sector-shaped via hole 31 rotates by 90 degrees and then completely coincides with another adjacent sector-shaped via hole. The two fan-shaped via holes 31 (i.e., the first fan-shaped via hole 31a and the fifth fan-shaped via hole 31e) that are farthest away are staggered by 360 degrees within the projection plane a.

Referring to fig. 4 and 5, in a specific application, first, a first split conductor 41 and a second split conductor 42 are provided, the first split conductor 41 includes a first connection end 411 and a first free end 412 opposite to the first connection end 411, and the second split conductor 42 includes a second connection end 421 and a second free end 422 opposite to the second connection end 421.

Then, the first pressing block 33 and the second pressing block 34 are adjusted to be away from each other, the first connection end 411 passes through the first clamp 30a, the second clamp 30b and the third clamp 30c in sequence, and the second connection end 421 passes through the fifth clamp 30e, the fourth clamp 30d and the third clamp 30c in sequence.

Next, the distance between the first jig 30a and the second jig 30b is adjusted to be one fourth of the pre-twist pitch S (i.e., the radial distance of the first connection end 411 or the second connection end rotated by 360 degrees), and the distance between the second jig 30b and the third jig 30c is adjusted to be one fourth of the pre-twist pitch S; and adjusting the distance between the third clamp 30c and the fourth clamp 30d to be a quarter of the pre-twisting pitch S, and adjusting the distance between the fourth clamp 30d and the fifth clamp 30e to be a quarter of the pre-twisting pitch S.

Next, the first pressing block 33 and the second pressing block 34 are adjusted to be close to each other to form the fan-shaped via hole 31, the fan-shaped via hole 31 clamps the first connection end 411/the second connection end 421 and twists the first connection end 411/the second connection end 421, specifically, the first fan-shaped via hole 31a and the second fan-shaped via hole 31b twist the first connection end 411 by 90 degrees, and the second fan-shaped via hole 31b and the third fan-shaped via hole 31c twist the first connection end 411 by 90 degrees, that is, the first connection end 411 rotates by 180 degrees between the first fan-shaped via hole 31a and the third fan-shaped via hole 31 c. The fifth and fourth fan-shaped via holes 31e and 31d twist the second connection end 421 by 90 degrees, and the fourth and third fan-shaped via holes 31d and 31c twist the second connection end 421 by 90 degrees, i.e., the second connection end 421 rotates between the fifth and third fan-shaped via holes 31e and 31c by 180 degrees.

Then, the first connection terminal 411 and the second connection terminal 421 are soldered to connect the first divided conductor 41 and the second divided conductor 42, and then the first pressing block 33 and the second pressing block 34 are adjusted to be away from each other, thereby completing a bonding operation.

The pre-twisting device 100 provided by the invention regulates the twisting angle and the pre-twisting pitch of the first divided conductor 41 and the second divided conductor 42 through the plurality of clamps 30, thereby ensuring that the shape of the welding position of the first divided conductor 41 and the second divided conductor 42 is matched, and the welding position is not easy to generate flash after welding, thereby being beneficial to improving the roundness of subsequent cabling.

A method of manufacturing a cable provided in an embodiment of the present application will be specifically described below with reference to the pre-twisting apparatus 100 described above. The order of the steps of the manufacturing method of the cable may be changed, and some steps may be omitted or combined according to different requirements. The manufacturing method of the cable comprises the following steps:

s100, providing a plurality of single wires, and twisting the single wires into a segmented conductor with a fan-shaped cross section;

in the present embodiment, step S100 includes the steps of:

and S101, threading the single wires of each layer to a branching board, not allowing the single wires to have a crossing condition in the threading process, finding that the single wires have a wire collapse condition, and winding the single wires manually in time.

And S102, after the traction rope is put on the pay-off frame, the traction rope passes through the wrapping machine, the traction wheel and each layer of twisting body until the traction rope reaches the position in front of 6 sections of twisting bodies.

And S103, assembling the 6 th section of die, manually passing the monofilaments through the 6 th section of die in sequence, fixing other needed dies on the drawn monofilaments in sequence, and then binding the monofilaments on a traction line to form a joint.

And S104, hanging the corresponding gear, starting a machine, enabling all the single wires which do not pass through to pass through the sixth section of die, cutting off the raised parts of the passed single wires, and winding adhesive tapes to prevent the die from being clamped. Meanwhile, whether the pitch meets the process requirement or not is measured, and the gear is not required to be replaced in time (the pitch of the inner layer is not allowed to be smaller than the process requirement).

And S105, after the 12 th section is threaded, a pinch roller and a doubling die are arranged, paying attention to that the pinch roller with the arc-shaped surface is placed below, the fan tip is placed above, the distances between the pinch roller and the upper baffle plate and the lower baffle plate are consistent, and no obvious dislocation exists between the pinch rollers.

And S106, starting the machine, moving the pressing bolt by using a wrench, forming the pressing bolt, observing whether the space between the two sides of the two pressing wheels is consistent, and adjusting in time when the space is inconsistent.

And S107, measuring whether the height of the clamping block, the width of the fan and the height of the fan meet the process by using the clamping block and the vernier caliper during pressing. During debugging, the strand block is easy to twist, the strand block is moved by a spanner plate, so that twisting is reduced as much as possible, the strand block is prevented from twisting by the spanner in time, and waste is avoided.

And S108, when the segment 18 and the following sections are adjusted and assembled to the fan-shaped preforming die, the cambered surface is downward, the fan tip is upward, and the preforming eye die needs to be installed correctly. When each layer of the strands is passed, the monofilaments pass through the fan-shaped preforming die and are tied to the joints, the number of the monofilaments passing through is generally half of that of the monofilaments in the layer, and the monofilaments are easily crushed due to too much passing.

And S109, after the last section of the twisted body is threaded with the monofilament and pulled on the pulling head, debugging the last section of the twisted body by the same method, hanging the gear, completely threading the monofilament through the fan-shaped eye die, and fixing the monofilament with the raised head by using an adhesive tape.

And S110, twisting the split conductor between the section and the previous section to a certain extent, and using a spanner to move the strand block to reduce the twisting as much as possible. And after the last section of the split conductor is adjusted, the outer layer does not have flash and stabbing hand feeling. And selecting a proper pre-twisted gear according to the process and the gear table, and installing the pre-twisted gear.

Through adopting the whole mode of pretwisting of straight fan-shaped, cut apart the conductor winding and draw 2 rings after, cut apart the conductor and can not rotate because of the rotation of hank body, keep whole fan-shaped fan point arc up down before pretwisting all the time, start the pretwisting device, pretwist the pitch after forming, the survey is pretwisted the pitch, whether in process range. The forming is not easy to generate flash, the operation is convenient by adopting an integral pre-twisting mode, the debugging efficiency of the puller is improved by 60 percent, the conductor cost is saved by 40 percent, and the quality of strand blocks is ensured.

S200, referring to the figure 5, pre-twisting a plurality of the split conductors through the pre-twisting device 100, and sequentially connecting the plurality of the split conductors to obtain joint split conductors;

in this embodiment, step S200 includes:

s201, preparing a first divided conductor 41 and a second divided conductor 42, wherein the first divided conductor 41 comprises a first connection end 411 and a first free end 412 opposite to the first connection end 411, and the second divided conductor 42 comprises a second connection end 421 and a second free end 422 opposite to the second connection end 421.

S202, adjusting the first pressing block 33 and the second pressing block 34 to enable the first pressing block and the second pressing block to be far away from each other, sequentially enabling the first connecting end 411 to penetrate through the first clamp 30a, the second clamp 30b and the third clamp 30c, and sequentially enabling the second connecting end 421 to penetrate through the fifth clamp 30e, the fourth clamp 30d and the third clamp 30 c.

S203, adjusting the distance between the first clamp 30a and the second clamp 30b to be a quarter of a pre-twisting pitch S (namely, the radial distance of the first connecting end 411 or the second connecting end rotating for 360 degrees), and adjusting the distance between the second clamp 30b and the third clamp 30c to be a quarter of the pre-twisting pitch S; and adjusting the distance between the third clamp 30c and the fourth clamp 30d to be a quarter of the pre-twisting pitch S, and adjusting the distance between the fourth clamp 30d and the fifth clamp 30e to be a quarter of the pre-twisting pitch S.

S204, adjusting the first pressing block 33 and the second pressing block 34 to approach each other to form the fan-shaped via hole 31, wherein the fan-shaped via hole 31 clamps the first connection end 411/the second connection end 421 and enables the first connection end 411/the second connection end 421 to be twisted, specifically, the first fan-shaped via hole 31a and the second fan-shaped via hole 31b twist the first connection end 411 by 90 degrees, and the second fan-shaped via hole 31b and the third fan-shaped via hole 31c twist the first connection end 411 by 90 degrees, that is, the first connection end 411 rotates by 180 degrees between the first fan-shaped via hole 31a and the third fan-shaped via hole 31 c. The fifth and fourth fan-shaped via holes 31e and 31d twist the second connection end 421 by 90 degrees, and the fourth and third fan-shaped via holes 31d and 31c twist the second connection end 421 by 90 degrees, i.e., the second connection end 421 rotates between the fifth and third fan-shaped via holes 31e and 31c by 180 degrees.

S205, welding the first connecting end 411 and the second connecting end 421 to connect the first split conductor 41 and the second split conductor 42, and then adjusting the first pressing block 33 and the second pressing block 34 to be away from each other, thereby completing one-time jointing operation and obtaining a combined split conductor.

And S300, splicing the plurality of the joint split conductors into a cable conductor with a circular cross section.

In this embodiment, step S300 includes the steps of:

s301, preparing a traction wire, enabling the traction wire to pass through a traction machine, a wrapping device and a doubling die, and forming a pre-twisting pitch with stable process requirements by adopting the residual jointing split conductors after the last production is finished as the traction wire.

And S302, sequentially passing the jointed and split conductors through a guide wheel and a phase wheel.

S303, winding a strong adhesive tape at the half-meter position of the beginning of the traction wire and the joint division conductor, removing all layers except the outermost layer of monofilaments, then winding and knotting the outer layer monofilaments at two ends, and well connecting the outer layer monofilaments, wherein the common long-section joint method is slow, a hydraulic press compression mould is needed for compression joint of a head, a traction rope disc needs to be changed, after the traction rope is used for completing the joint, a lower disc is needed, and a normal take-up disc is changed, so that the time is slow, and by adopting the pull head method, the pull head time is saved by two thirds.

And S304, measuring the distance from the doubling die to the phase wheel to be 1.5 times or 2 times of the cabling pitch, adjusting the paying-off tension of the 5-disc joint split conductors to tighten the wires, wherein the paying-off tension of each joint split conductor is not lower than 2.5kg, and ensuring the transmission of the pitch.

S305, adopting a phase concentration detection device to ensure that the incoming line angle of 5 jointed and segmented conductors at a die opening is correct, if the incoming line angle of a certain jointed and segmented conductor is incorrect, transmitting a signal to a corresponding pay-off rack by the phase concentration detection device, and accelerating or reducing the rotation speed after the pay-off rack obtains the signal so as to adjust the correct incoming line angle and ensure the cable formation roundness of the jointed and segmented conductors.

S306, starting a pre-twisting mode, then rotating a pay-off rack to twist the jointed and split conductors, simultaneously shaking the jointed and split conductors to transfer torsion to a die opening, synthesizing the jointed and split conductors into a circular shape, then measuring the outer diameter size of the cabled conductor, selecting a half die with the outer diameter larger than that of the actual cabled conductor by 0.5-0.8 mm for the first die, pressing the first doubling die, rounding the cabled conductor, then adhering the cabled conductor by using a strong adhesive tape, fastening a phase wheel, routing, pressing the second doubling die, wherein the second doubling die is larger than the conductor by 0.2-0.3, pressing the third sizing die, and the sizing die is larger than the conductor by (-0.1-0.2) mm, wherein the size of the die is selected according to the designed outer diameter of the cabled conductor and the actual experience so that the cabled conductor can be more rounded.

S307, the crepe insulating paper tape penetrates through the wire distributing plate and is pulled to the front of the first doubling die, so that the crepe paper can stably enter a die hole along with the cabling conductor, and the paper tape is not deviated.

S308, controlling the lapping tension of the back conductive band after the cabled conductor enters the lapping machine to be 20-40kg, wherein the cabled conductor has good compression resistance, the deformation of the conductor is not more than 0.5mm when the pressure is 4kg, and the roundness of the cable is ensured.

S309, under the condition that the sizes of a pay-off rack and a coiling tool are not changed, the cabling machine is improved to adopt a 55-ton-bearing coiling head, a conductor with 800 specifications can be coiled for 7.2km, a conductor with 1000 specifications can be coiled for 5.6km, a conductor with 1200 specifications can be coiled for 4.7km, a conductor with 1600 specifications can be coiled for 3.5km, a conductor with 2000 specifications can be coiled for 2.8km, a conductor with 2500 specifications can be coiled for 2.3km, and the length is increased by about 64%.

In addition, it is obvious to those skilled in the art that other various corresponding changes and modifications can be made according to the technical idea of the present invention, and all such changes and modifications should fall within the scope of the claims of the present invention.